CA2449644C - Docking collar for a faucet having a pullout spray head - Google Patents
Docking collar for a faucet having a pullout spray head Download PDFInfo
- Publication number
- CA2449644C CA2449644C CA2449644A CA2449644A CA2449644C CA 2449644 C CA2449644 C CA 2449644C CA 2449644 A CA2449644 A CA 2449644A CA 2449644 A CA2449644 A CA 2449644A CA 2449644 C CA2449644 C CA 2449644C
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- CA
- Canada
- Prior art keywords
- spray head
- spout
- faucet
- docking collar
- snap fingers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/02—Plumbing installations for fresh water
- E03C1/04—Water-basin installations specially adapted to wash-basins or baths
- E03C1/0404—Constructional or functional features of the spout
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/02—Plumbing installations for fresh water
- E03C1/04—Water-basin installations specially adapted to wash-basins or baths
- E03C2001/0415—Water-basin installations specially adapted to wash-basins or baths having an extendable water outlet
Abstract
A faucet has a spout and a pullout spray head connected to a flexible water supply tube and releasably connectable to the spout. The spout has a docking collar mounted thereon for receiving a connecting shaft of the spray head. The docking collar has an annular wall with a plurality of U-shaped slots which define a plurality of cantilevered snap fingers. Each snap finger includes a projection that fits into a groove in the connecting shaft when the spray head is docked. An elastomeric O-ring surrounds the annular wall at a point where the O- ring engages the snap fingers to bias them toward the groove. Ridges on the exterior surface of the wall retain the O-ring in place. The spout and docked spray head have parallel shoulders that define a mating plane. The projections and groove define a retaining plane. The mating plane is not parallel to the retaining plane such that rotation of the spray head about as axis normal to the mating plane will cause the projections to release from the groove.
Description
DOCKING COLLAR FOR A FAUCET HAVMTG A PULLOUT SPRAY
HEAD
B ackg,mund of the Invention This invention relates to faucets of the type having a pullout spray head and is parkicularly concerned with an improved docking collar. The docking collar is fixed at or near the end of a spout for mating with a pullout spray head or wand to releasably hold or mount the spray head to the spout. The docking collar of the prior art typically includes a plurality of cantilevered, flexi'ble snap fingers which are engageable with recesses or the like in a portion of the pullout spray head which fits into the collar. The snap fingers of the prior art collar rely on the inhezent resiliency of the plastic material of which the collar is made to produce a retaining force. This retaining force, while enough to hold the wand on the spout, can be overcome when a user wishes to release the wand from the spout. Release of the spray head is achieved by simply pulli.ng outwardly or downwardly on the spray head until the snap fingers are forced to flex out of the mating recesses.
One problem with the snap finger arrangement of the prior art docking collar is the retention force is produced solely by the flexibility of the cantilevered fingers. That flexibility, and thus the retention force, can change over time as the material ages and as the number of dock-and release cycles increases. This counsels a snap finger design that has a higher retention force than optimum at the outset of the product's life, with the expectation that the retention force will decline over time. The high initial retention force leads to higher stresses on the spout when the user has to overcome the retention force to pull out the spray head. This is a partieular problem with high arc, gooseneck type spouts, such as in bar faucets and some kitchen faucets. Another difficulty with high initial retention force is the potential for creating a negative first impression on prospective purchasers of the faucet. Purchasers may try to release the wand from the spout in a floor sample faucet and decide not to purchase the faucet due to the perceived difficulty of undocking the wand. Still another problem with prior art snap finger designs is they are susceptible to fatigue failure.
Summarv of the Invention This description relates to a faucet of the type supplied with water by an extensible water supply conduit, comprising: a spout having a first shoulder which defines a mating plane; a pullout spray head connectable to the extensible water supply conduit and having a second shoulder, the pullout spray head being movable between a docked position in which the spray head is connected to and supported by the spout and a released position in which the spray head is separated from the spout, the first and second shoulders being parallel to one another when the spray head is in its docket position; one of the spout and spray head having a male portion and the other having a female portion, said male and female portions being engagable with one another in telescoping relation; retention members on the one of the male and female portions attached to the spout, the retention members defining a retaining plane and being releasably engagable with the pullout spray head such that the retention members disengage from each other when the spray head is disconnected from the spout, the mating plane and retaining plane being non-parallel to one another.
The faucet of the present invention has an improved docking collar which is attached to the end of a spout. A pullout spray head is releasably connectable to the docking collar. The spray head is also connectable to a flexible water supply tube that extends through the spout.
The docking collar has an annular wall with a plurality of U-shaped slots therein which define cantilevered snap fingers. An elastomeric 0-ring surrounds the annular wall and engages the snap fingers to urge them radially inwardly toward a spray head retaining position. The exterior surface of the annular wall has a series of ridges which hold the 0-ring in place. The snap fingers include projections which are engageable with a groove in the spray head. The projections define a retaining plane.
The spout has a first shoulder and there is a second shoulder formed on the spray head.
The first and second shoulders are parallel to one another when the spray head is docked on the
HEAD
B ackg,mund of the Invention This invention relates to faucets of the type having a pullout spray head and is parkicularly concerned with an improved docking collar. The docking collar is fixed at or near the end of a spout for mating with a pullout spray head or wand to releasably hold or mount the spray head to the spout. The docking collar of the prior art typically includes a plurality of cantilevered, flexi'ble snap fingers which are engageable with recesses or the like in a portion of the pullout spray head which fits into the collar. The snap fingers of the prior art collar rely on the inhezent resiliency of the plastic material of which the collar is made to produce a retaining force. This retaining force, while enough to hold the wand on the spout, can be overcome when a user wishes to release the wand from the spout. Release of the spray head is achieved by simply pulli.ng outwardly or downwardly on the spray head until the snap fingers are forced to flex out of the mating recesses.
One problem with the snap finger arrangement of the prior art docking collar is the retention force is produced solely by the flexibility of the cantilevered fingers. That flexibility, and thus the retention force, can change over time as the material ages and as the number of dock-and release cycles increases. This counsels a snap finger design that has a higher retention force than optimum at the outset of the product's life, with the expectation that the retention force will decline over time. The high initial retention force leads to higher stresses on the spout when the user has to overcome the retention force to pull out the spray head. This is a partieular problem with high arc, gooseneck type spouts, such as in bar faucets and some kitchen faucets. Another difficulty with high initial retention force is the potential for creating a negative first impression on prospective purchasers of the faucet. Purchasers may try to release the wand from the spout in a floor sample faucet and decide not to purchase the faucet due to the perceived difficulty of undocking the wand. Still another problem with prior art snap finger designs is they are susceptible to fatigue failure.
Summarv of the Invention This description relates to a faucet of the type supplied with water by an extensible water supply conduit, comprising: a spout having a first shoulder which defines a mating plane; a pullout spray head connectable to the extensible water supply conduit and having a second shoulder, the pullout spray head being movable between a docked position in which the spray head is connected to and supported by the spout and a released position in which the spray head is separated from the spout, the first and second shoulders being parallel to one another when the spray head is in its docket position; one of the spout and spray head having a male portion and the other having a female portion, said male and female portions being engagable with one another in telescoping relation; retention members on the one of the male and female portions attached to the spout, the retention members defining a retaining plane and being releasably engagable with the pullout spray head such that the retention members disengage from each other when the spray head is disconnected from the spout, the mating plane and retaining plane being non-parallel to one another.
The faucet of the present invention has an improved docking collar which is attached to the end of a spout. A pullout spray head is releasably connectable to the docking collar. The spray head is also connectable to a flexible water supply tube that extends through the spout.
The docking collar has an annular wall with a plurality of U-shaped slots therein which define cantilevered snap fingers. An elastomeric 0-ring surrounds the annular wall and engages the snap fingers to urge them radially inwardly toward a spray head retaining position. The exterior surface of the annular wall has a series of ridges which hold the 0-ring in place. The snap fingers include projections which are engageable with a groove in the spray head. The projections define a retaining plane.
The spout has a first shoulder and there is a second shoulder formed on the spray head.
The first and second shoulders are parallel to one another when the spray head is docked on the
2 spout. The first shoulder defines a mating plane. The spray head further includes a connecting shaft having a groove formed therein. The connecting shaft fits into the annular wall of the docking collar, with the snap finger projections extending into and engaging the groove when the spray head is docked. The retaining plane and the mating plane are not parallel to one another.
Preferably, the two planes are angled at about 5 to one another. Thus, the retaining plane is inclined with respect to the mating plane. Twisting the spout creates a mechanical advantage as the shoulders engage one another and cause the connecting shaft to rotate the groove out of engagement with the snap finger projections.
One of the advantages of the present invention is the 0-ring provides an inexpensive way to increase the retention force. Further, the retention force can easily be 2a adjusted by selecting an appropriately sized 0-ring. The O-ring makes the snap fingers much less suscepti'ble to fatigue failure or diminution of the retention force over time. The retaining force remains consistent over time. The retaining force assistance provided by the 0-ring can be applied at any point along the snap fingers, including directly adjacent the projections or other contact point of the fingers.
A further advantage of the invention is the sma11 twist needed to undock the spray head greatly reduces the effort and force required to release the spray head. The mechanical advantage provided by the inclined plane allows a relatively high spray head retention force without causing the user to expend unusually high effort to undock the spray head. This in tuna reduces the force required to undock the spray head or wand with the result that the stress on the spout is reduced as well.
Brief Description of the Drawing_s Fig. I is a side elevation view of an end portion of a faucet having pullout spray head mounted or docked thereto in accordance with the present invention, with portions in section.
Fig. 2 is a view similar to Fig. 1 but with the pullout spray head twisted 180' from the normal docked position.
Fig. 3 is an enlarged perspective view of the docking collar according to the present invention.
Fig. 4 is a top plan view of the docking collar.
Fig. 5 is side elevation view of the docking collar.
Fig. 6 is front elevation view of the docking collar.
Fig. 7 is a bottom plan view of the docking collar.
Fig. 8 is a section taken along line 8-8 of Fig. 4.
Fig. 9 is a section taken along line 9-9 of Fig. 4.
Preferably, the two planes are angled at about 5 to one another. Thus, the retaining plane is inclined with respect to the mating plane. Twisting the spout creates a mechanical advantage as the shoulders engage one another and cause the connecting shaft to rotate the groove out of engagement with the snap finger projections.
One of the advantages of the present invention is the 0-ring provides an inexpensive way to increase the retention force. Further, the retention force can easily be 2a adjusted by selecting an appropriately sized 0-ring. The O-ring makes the snap fingers much less suscepti'ble to fatigue failure or diminution of the retention force over time. The retaining force remains consistent over time. The retaining force assistance provided by the 0-ring can be applied at any point along the snap fingers, including directly adjacent the projections or other contact point of the fingers.
A further advantage of the invention is the sma11 twist needed to undock the spray head greatly reduces the effort and force required to release the spray head. The mechanical advantage provided by the inclined plane allows a relatively high spray head retention force without causing the user to expend unusually high effort to undock the spray head. This in tuna reduces the force required to undock the spray head or wand with the result that the stress on the spout is reduced as well.
Brief Description of the Drawing_s Fig. I is a side elevation view of an end portion of a faucet having pullout spray head mounted or docked thereto in accordance with the present invention, with portions in section.
Fig. 2 is a view similar to Fig. 1 but with the pullout spray head twisted 180' from the normal docked position.
Fig. 3 is an enlarged perspective view of the docking collar according to the present invention.
Fig. 4 is a top plan view of the docking collar.
Fig. 5 is side elevation view of the docking collar.
Fig. 6 is front elevation view of the docking collar.
Fig. 7 is a bottom plan view of the docking collar.
Fig. 8 is a section taken along line 8-8 of Fig. 4.
Fig. 9 is a section taken along line 9-9 of Fig. 4.
3 Detailed DescriRtion of the Invention Figs. 1 and 2 illustrate the major components of the faucet of the present invention. These include a spout 10, a pullout spray head or wand 12 and a docking collar 14.
The spout 10 is a hollow, tubular member having a base, not shown, mounted on a suitable deck.
The free end of the spout defines a first shoulder 16. The shoulder defines a mating plane indicated by line 18 in Fig. 1. The spout opening defines a primary axis as shown at line 20.
The primary axis is normal to the mating plane. Spaced somewhat from the first shoulder 16 is an aperhue 22. This aperture receives a retainer finger on the docking collar, as will be descnbed below.
Turning now to the features of the spray head or wand 12, it -includes a main body 24 which has a water discharge nozzle 26 at one end. The other end of the spray head has a male portion in the form of a hollow connecting shaft 28. The connecting shaft is generally cylindrical, although the free end may be somewhat tapered. The connecting shaft 28 defines a secondary axis as indicated by the line 30. A groove 32 or depression encircles the outer surface of the connecting shaft. The connecting shaft 28 is adapted for connection to a flexible water supply tube or conduit or hose, a portion of which is shown schematically at 33 in Fig. 1. A
suitable clamp, washer or the like may be added to hold the tube in the connecting shaft. It will be understood that the water supply tube extends through the hollow spout 10 to a water control valve which is in turn connected to suitable water supply lines. As is conventional the water supply tube 33 has a length which allows the spray head 12 to be pulled off of the spout 10 and extended therefrom so that a user can point the nozzle 26 as needed to direct water in any desired direction. The junction between the main body 24 and the connecting shaft 28 forms a second shoulder 34, as best seen in Fig. 2. It will be noted that the secondary axis 30 is not perpendicu-lar to the second shoulder 34. A set of pushbutton controls 35 are provided on one side of the main body. Further details of the spray head's construction are shown and described in U.S.
The spout 10 is a hollow, tubular member having a base, not shown, mounted on a suitable deck.
The free end of the spout defines a first shoulder 16. The shoulder defines a mating plane indicated by line 18 in Fig. 1. The spout opening defines a primary axis as shown at line 20.
The primary axis is normal to the mating plane. Spaced somewhat from the first shoulder 16 is an aperhue 22. This aperture receives a retainer finger on the docking collar, as will be descnbed below.
Turning now to the features of the spray head or wand 12, it -includes a main body 24 which has a water discharge nozzle 26 at one end. The other end of the spray head has a male portion in the form of a hollow connecting shaft 28. The connecting shaft is generally cylindrical, although the free end may be somewhat tapered. The connecting shaft 28 defines a secondary axis as indicated by the line 30. A groove 32 or depression encircles the outer surface of the connecting shaft. The connecting shaft 28 is adapted for connection to a flexible water supply tube or conduit or hose, a portion of which is shown schematically at 33 in Fig. 1. A
suitable clamp, washer or the like may be added to hold the tube in the connecting shaft. It will be understood that the water supply tube extends through the hollow spout 10 to a water control valve which is in turn connected to suitable water supply lines. As is conventional the water supply tube 33 has a length which allows the spray head 12 to be pulled off of the spout 10 and extended therefrom so that a user can point the nozzle 26 as needed to direct water in any desired direction. The junction between the main body 24 and the connecting shaft 28 forms a second shoulder 34, as best seen in Fig. 2. It will be noted that the secondary axis 30 is not perpendicu-lar to the second shoulder 34. A set of pushbutton controls 35 are provided on one side of the main body. Further details of the spray head's construction are shown and described in U.S.
4 Patent applications Serial No. 10/291,157 and Serial No. 10/291,131, both filed November 8, 2002, now granted as U.S. Patent No. 7,000,854 and No. 6,738,996 respectively.
Details of the docldng collar 14 are shown in Figs. 3- 9. The collar has a female portion deflned by a body shown generally at 36. The body includes an annular wall made up of a base rim 38, a lower portion 40, a frusto-conical portion 42, an upper portion 44 and an upper rim 46. It will be noted, particularly in Fig. 8, that the base rim 38 defines and is normal to a first axis 48 while the lower portion 40 and frusto-conical portion 42 of the annular wall define a second axis 50 that is angled 5 from the first axis. The upper portion is angled with respect to the frusto-conical portion such that the upper portion defines a third axis 52 that is parallel to and slightly spaced from the first axis 48. As best seen in Fig.
Details of the docldng collar 14 are shown in Figs. 3- 9. The collar has a female portion deflned by a body shown generally at 36. The body includes an annular wall made up of a base rim 38, a lower portion 40, a frusto-conical portion 42, an upper portion 44 and an upper rim 46. It will be noted, particularly in Fig. 8, that the base rim 38 defines and is normal to a first axis 48 while the lower portion 40 and frusto-conical portion 42 of the annular wall define a second axis 50 that is angled 5 from the first axis. The upper portion is angled with respect to the frusto-conical portion such that the upper portion defines a third axis 52 that is parallel to and slightly spaced from the first axis 48. As best seen in Fig.
5, the upper portion 44 has a wedge shape with a greater height on the side of the retainer finger 56 than on the opposite side. In fact, the upper portion 44 nearly disappears opposite the retainer finger 56 as the fiusto-conical portion 42 essentially joins the upper rim 46 directly. As a result of this structure with the oppositely-angled upper and lower portions the upper rim 46 is parallel to the base rim 38, even though the lower portion and frusto-conical portions are angled with respect to the base rim.
The lower portion 40 of the annular wall has a cutout 54 that defines a retainer finger 56. An angled prong 58 extends radially outwardly from the free end of the finger 56 and is engageable with the aperture 22 of the spout to hold the collar in the end of the spout. In addition to the prong 58, the external surface of the docldng collar includes an eccentric -centering flange 60 at the junction of the exterior surfaces of the lower portion 40 and fnisto-conical portion 42. The centering flange is shaped to fill the gap between the exterior of the docking collar and the internal wall of the spout. The collar 14 is inserted into the end of the spout 10. The retainer finger 56 flexes to allow the prong 58 to slip past the shoulder 16 and into the aperture 22. When the collar is fully inserted the prong 58 engages the aperture 22, the base rim 38 engages the first shoulder 16, and the centering flange 60 engages the internal wall of the spout. This substantially fixes the docking collar 14 in the spout 10.
The fivsto-conical portion 42 has a plurality of U-shaped cutouts or slots 62.
Each cutout defines a cantilevered snap finger 64. The snap fingers will flex radially. The interior face of each snap finger has a projection 66. The projections define a retaining plane as shown by line 68 in Fig. 1. The retaining plane 68 is perpendicular to the second axis 50. The projections are arranged such that they will engage the groove 32 when the connecting shaft 28 is inserted into the docking collar and oriented for doclcing.
A biasing means urges the snap fingers radially inwardly. In a preferred embodiment the biasing means is an elastomeric 0-ring 70, which is best seen in Fig. 3. The exterior surface of the fivsto-conical portion 42 has a plurality of ridges 72 which form channels for holding the 0-ring in place. The ridges are located such that the 0-ring crosses over the snap fingers, preferably right behind the projections 66. Accordingly, the 0-ring enhances the retaining force with which the snap fingers engage the groove. The retaining force can be adjusted by selecting an appropriately sized 0-ring.
The use, operation and function of the invention are as follows. The doclcing collar 14 is shown in Fig. 1 attached to the spout 10. The first axis 48 of the docking collar is substantially coincident with the primary axis 20 of the spout. The wand 12 is shown in its docked position wherein the secondary axis 30 of the connecting shaft is parallel to the second axis 50 of the collar. The groove 32 is aligned with the retaining plane 68 such that the projec-tions 66 of the snap fingers 64 engage the groove 32 of connecting shaft 28 of the wand. The second shoulder 34 is parallel to the first shoulder 16. The second shoulder of the wand is in abutting relation with the collar's base rim 38, or close to it. The pushbutton are aligned with the retainer finger 56.
To release the pullout spray head from the doclcing collar, a user twists the main body 24 in either direction. Due to engagement of the wand shoulder 34 and the base rim 38 of the collar, the wand rotates about the primary axis 20. The connecting shafft axis 30, being angled with respect to axis 20, is going to precess about axis 20. Thus, axis 30 will move out of
The lower portion 40 of the annular wall has a cutout 54 that defines a retainer finger 56. An angled prong 58 extends radially outwardly from the free end of the finger 56 and is engageable with the aperture 22 of the spout to hold the collar in the end of the spout. In addition to the prong 58, the external surface of the docldng collar includes an eccentric -centering flange 60 at the junction of the exterior surfaces of the lower portion 40 and fnisto-conical portion 42. The centering flange is shaped to fill the gap between the exterior of the docking collar and the internal wall of the spout. The collar 14 is inserted into the end of the spout 10. The retainer finger 56 flexes to allow the prong 58 to slip past the shoulder 16 and into the aperture 22. When the collar is fully inserted the prong 58 engages the aperture 22, the base rim 38 engages the first shoulder 16, and the centering flange 60 engages the internal wall of the spout. This substantially fixes the docking collar 14 in the spout 10.
The fivsto-conical portion 42 has a plurality of U-shaped cutouts or slots 62.
Each cutout defines a cantilevered snap finger 64. The snap fingers will flex radially. The interior face of each snap finger has a projection 66. The projections define a retaining plane as shown by line 68 in Fig. 1. The retaining plane 68 is perpendicular to the second axis 50. The projections are arranged such that they will engage the groove 32 when the connecting shaft 28 is inserted into the docking collar and oriented for doclcing.
A biasing means urges the snap fingers radially inwardly. In a preferred embodiment the biasing means is an elastomeric 0-ring 70, which is best seen in Fig. 3. The exterior surface of the fivsto-conical portion 42 has a plurality of ridges 72 which form channels for holding the 0-ring in place. The ridges are located such that the 0-ring crosses over the snap fingers, preferably right behind the projections 66. Accordingly, the 0-ring enhances the retaining force with which the snap fingers engage the groove. The retaining force can be adjusted by selecting an appropriately sized 0-ring.
The use, operation and function of the invention are as follows. The doclcing collar 14 is shown in Fig. 1 attached to the spout 10. The first axis 48 of the docking collar is substantially coincident with the primary axis 20 of the spout. The wand 12 is shown in its docked position wherein the secondary axis 30 of the connecting shaft is parallel to the second axis 50 of the collar. The groove 32 is aligned with the retaining plane 68 such that the projec-tions 66 of the snap fingers 64 engage the groove 32 of connecting shaft 28 of the wand. The second shoulder 34 is parallel to the first shoulder 16. The second shoulder of the wand is in abutting relation with the collar's base rim 38, or close to it. The pushbutton are aligned with the retainer finger 56.
To release the pullout spray head from the doclcing collar, a user twists the main body 24 in either direction. Due to engagement of the wand shoulder 34 and the base rim 38 of the collar, the wand rotates about the primary axis 20. The connecting shafft axis 30, being angled with respect to axis 20, is going to precess about axis 20. Thus, axis 30 will move out of
6 alignment with the second axis 50 of the collar. As it does so the groove 32 will move out of alignment with the retaining plane.,=The snap fingers 64 will flex outwardly and allow the projections 66 to slip out of the now non-aligned groove. One side of the second shoulder 34 remains in contact with the base rim. As a result of this engagement, rotation of the main body tends to pull the wand down and out of the spout, as shown in Fig. 2. The groove is forced to move away from the snap finger projections along a helical path.
Another way to look at the motion derived from the inclined mating and retaining planes is to note in Fig. 1 that the distance between the planes at the retaining finger 56 side of the collar is less than that at the opposite side of the collar.
Similarly, on the wand the distance between the shoulder 34 and the groove 32 is less on the pushbutton side than on the opposite side of the connecting shaft. When the wand is docked these differential distance relationships coincide and the snap finger projections line up with the groove. When the wand is rotated 180 or so from the docked position, the short shoulder-to-groove distance on the connecting shaft is aligned with the long base rim-to-retaining plane distance on the collar. That mismatch, which gradually arises and increases as the wand is rotated away from its docked position, causes the groove to pull out of engagement with the snap fingers.
The snap fingers flex outwardly as the connecting shaft pulls down and out of the spout. The mechanical advantage supplied by the inclined mating and retaining planes allows the user to release the wand with a simple rotating motion which overcomes a relatively high retaining force applied by the 0-ring.
While a prefen-ed form of the invention has been shown and described, it will be realized that alterations and modifications may be made thereto without departing from the scope of the following claims. For example, while the biasing means acting on the snap fingers is shown as an O-ring, it could be some other spring-like arrangement acting on the snap fingers.
A plurality of leaf springs, one spring associated with each snap finger, attached to the annular wall is one possibility. Or a series of leaf springs mounted on the interior surface of the spout
Another way to look at the motion derived from the inclined mating and retaining planes is to note in Fig. 1 that the distance between the planes at the retaining finger 56 side of the collar is less than that at the opposite side of the collar.
Similarly, on the wand the distance between the shoulder 34 and the groove 32 is less on the pushbutton side than on the opposite side of the connecting shaft. When the wand is docked these differential distance relationships coincide and the snap finger projections line up with the groove. When the wand is rotated 180 or so from the docked position, the short shoulder-to-groove distance on the connecting shaft is aligned with the long base rim-to-retaining plane distance on the collar. That mismatch, which gradually arises and increases as the wand is rotated away from its docked position, causes the groove to pull out of engagement with the snap fingers.
The snap fingers flex outwardly as the connecting shaft pulls down and out of the spout. The mechanical advantage supplied by the inclined mating and retaining planes allows the user to release the wand with a simple rotating motion which overcomes a relatively high retaining force applied by the 0-ring.
While a prefen-ed form of the invention has been shown and described, it will be realized that alterations and modifications may be made thereto without departing from the scope of the following claims. For example, while the biasing means acting on the snap fingers is shown as an O-ring, it could be some other spring-like arrangement acting on the snap fingers.
A plurality of leaf springs, one spring associated with each snap finger, attached to the annular wall is one possibility. Or a series of leaf springs mounted on the interior surface of the spout
7 might act against the exterior of the snap fingers. Obviously the number of snap fingers could be other than as shown.
8
Claims (20)
1. A faucet of the type supplied with water by an extensible water supply conduit, comprising: a spout having a first shoulder which defines a mating plane; a pullout spray head connectable to the extensible water supply conduit and having a second shoulder, the pullout spray head being movable between a docked position in which the spray head is connected to and supported by the spout and a released position in which the spray head is separated from the spout, the first and second shoulders being parallel to one another when the spray head is in its docket position; one of the spout and spray head having a male portion and the other having a female portion, said male and female portions being engagable with one another in telescoping relation; retention members on the one of the male and female portions attached to the spout, the retention members defining a retaining plane and being releasably engagable with the pullout spray head such that the retention members disengage from each other when the spray head is disconnected from the spout, the mating plane and retaining plane being non-parallel to one another.
2. A faucet of the type supplied with water by an extensible water supply conduit, comprising: a spout terminating at a first annular shoulder which defines a mating plane; a docking collar connected to the spout; a pullout spray head connectable to the extensible water supply conduit and having a second shoulder and a connecting shaft which is releasably engagable with the docking collar, the pullout spray head being movable between a docked position in which the spray head is connected to and supported by the spout and a released position in which the spray head is separated from the spout, the first and second shoulders being parallel to one another when the spray head is in its docked position; and a plurality of snap fingers on the docking collar and a groove formed around the connecting shaft, the snap fingers and groove being releasably engagable with one another to releasably connect the pullout spray head to the spout such that the snaps fingers and the groove disengage from each other when the spray head is disconnected from the spout, the snap fingers defining a retaining plane, the mating plane and retaining plane being non-parallel to one another.
3. The faucet of claim 2 wherein the docking collar has a body including a base rim engagable with the first annular shoulder and a lower annular wall extending from the base rim at an angle thereto.
4. The faucet of claim 3 wherein the docking collar further comprises a frusto-conical wall adjoining the lower annular wall.
5. The faucet of claim 4 wherein the docking collar further comprises an upper wall adjoining the frusto-conical wall, extending at an angle to the frusto-conical wall and terminating at an inner rim.
6. The faucet of claim 5 wherein the inner rim is parallel to the base rim.
7. The faucet of claim 4 wherein the frusto-conical wall has a plurality of U-shaped slots extending there through to define the snap fingers.
8. The faucet of claim 7 further comprising an O-ring surrounding the frusto-conical wall and engaging the snap fingers.
9. The faucet of claim 8 further comprising at least one pair of spaced ridges on the frusto-conical wall, the ridges defining a channel in which the O-ring is disposed.
10. The faucet of claim 3 wherein the lower annular wall has a U-shaped cutout to define a retainer finger which is engagable with the spout.
11. The faucet of claim 3 wherein the docking collar further comprises a centering flange surrounding the lower annular wall.
12. The faucet of claim 2 wherein each of the snap fingers has a projection thereon which releasably fits into the groove when the spray head is in the docked position.
13. A faucet of the type supplied with water by an extensible water supply conduit, comprising;
a spout terminating at a first annular shoulder which defines a mating plane;
a docking collar connected to the spout, the docking collar comprising a body including a base rim engagable with the first annular shoulder and a lower annular wall extending from the base rim at an angle thereto; a frusto-conical wall adjoining the lower annular wall; and an upper wall adjoining the frusto-conical wall, extending at an angle to the frusto-conical wall and terminating at an inner rim, a pullout spray head connectable to the extensible water supply conduit and having a second shoulder and a connecting shaft which is releasably engagable with the docking collar, the pullout spray head being movable between a docked position in which the spray head is connected to and supported by the spout and a released position in which the spray head is separated from the spout, the first and second shoulders being parallel to one another when the spray head is in its docked position; and a plurality of snap fingers on the docking collar and a groove formed around the connecting shaft, the snap fingers and groove being releasably engagable with one another to releasably connect the pullout spray head to the spout, the snap fingers a retaining plane, the mating plane and retaining plane being non-parallel to one another.
a spout terminating at a first annular shoulder which defines a mating plane;
a docking collar connected to the spout, the docking collar comprising a body including a base rim engagable with the first annular shoulder and a lower annular wall extending from the base rim at an angle thereto; a frusto-conical wall adjoining the lower annular wall; and an upper wall adjoining the frusto-conical wall, extending at an angle to the frusto-conical wall and terminating at an inner rim, a pullout spray head connectable to the extensible water supply conduit and having a second shoulder and a connecting shaft which is releasably engagable with the docking collar, the pullout spray head being movable between a docked position in which the spray head is connected to and supported by the spout and a released position in which the spray head is separated from the spout, the first and second shoulders being parallel to one another when the spray head is in its docked position; and a plurality of snap fingers on the docking collar and a groove formed around the connecting shaft, the snap fingers and groove being releasably engagable with one another to releasably connect the pullout spray head to the spout, the snap fingers a retaining plane, the mating plane and retaining plane being non-parallel to one another.
14. The faucet of claim 13 wherein the inner rim is parallel to the base rim.
15. A faucet of the type supplied with water by an extensible water supply conduit, comprising;
a spout terminating at a first annular shoulder which defines a mating plane;
a docking collar connected to the spout, the docking collar comprising a body including a base rim engagable with the first annular shoulder and a lower annular wall extending from the base rim at an angle thereto; and a frusto-conical wall adjoining the lower annular wall; a pullout spray head connectable to the extensible water supply conduit and having a second shoulder and a connecting shaft which is releasably engagable with the docking collar, the pullout spray head being movable between a docked position in which the spray head is connected to and supported by the spout and a released position in which the spray head is separated from the spout, the first and second shoulders being parallel to one another when the spray head is in its docked position;
and a plurality of snap fingers on the docking collar and a groove formed around the connecting shaft, the snap fingers and groove being releasably engagable with one another to releasably connect the pullout spray head to the spout, the snap fingers defining a retaining plane, the mating plane and retaining plane being non-parallel to one another, wherein the frusto-conical wall has a plurality of U-shaped slots extending there through to define the snap fingers.
a spout terminating at a first annular shoulder which defines a mating plane;
a docking collar connected to the spout, the docking collar comprising a body including a base rim engagable with the first annular shoulder and a lower annular wall extending from the base rim at an angle thereto; and a frusto-conical wall adjoining the lower annular wall; a pullout spray head connectable to the extensible water supply conduit and having a second shoulder and a connecting shaft which is releasably engagable with the docking collar, the pullout spray head being movable between a docked position in which the spray head is connected to and supported by the spout and a released position in which the spray head is separated from the spout, the first and second shoulders being parallel to one another when the spray head is in its docked position;
and a plurality of snap fingers on the docking collar and a groove formed around the connecting shaft, the snap fingers and groove being releasably engagable with one another to releasably connect the pullout spray head to the spout, the snap fingers defining a retaining plane, the mating plane and retaining plane being non-parallel to one another, wherein the frusto-conical wall has a plurality of U-shaped slots extending there through to define the snap fingers.
16. The faucet of claim 15 further comprising an O-ring surrounding the frusto-conical wall and engaging the snap fingers.
17. The faucet of claim 16 further comprising at least one pair of spaced ridges on the frusto-conical wall, the ridges defining a channel in which the O-ring is disposed.
18. A faucet of the type supplied with water by an extensible water supply conduit, comprising:
a spout terminating at a first annular shoulder which defines a mating plane;
a docking collar connected to the spout; a pullout spray head connectable to the extensible water supply conduit and having a second shoulder and a connecting shaft which is releasably engagable with the docking collar, the pullout spray head being movable between a docked position in which the spray head is connected to and supported by the spout and a released position in which the spray head is separated from the spout, the first and second shoulders being parallel to one another when the spray head is in its docked position; and a plurality of snap fingers on the docking collar and a groove formed around the connecting shaft, the snap fingers and groove being releasably engagable with one another to releasably connect the pullout spray head to the spout, the snap fingers defining a retaining plane, wherein the groove is non-parallel to the second shoulder of the spray head to form an acute angle with an axis defined by the spray head shoulder.
a spout terminating at a first annular shoulder which defines a mating plane;
a docking collar connected to the spout; a pullout spray head connectable to the extensible water supply conduit and having a second shoulder and a connecting shaft which is releasably engagable with the docking collar, the pullout spray head being movable between a docked position in which the spray head is connected to and supported by the spout and a released position in which the spray head is separated from the spout, the first and second shoulders being parallel to one another when the spray head is in its docked position; and a plurality of snap fingers on the docking collar and a groove formed around the connecting shaft, the snap fingers and groove being releasably engagable with one another to releasably connect the pullout spray head to the spout, the snap fingers defining a retaining plane, wherein the groove is non-parallel to the second shoulder of the spray head to form an acute angle with an axis defined by the spray head shoulder.
19. The faucet of claim 18 wherein the docking collar has a body including a base rim engagable with the first annular shoulder and a lower annular wall extending from the base rim at an angle thereto.
20. The faucet of claim 19 wherein the lower annular wall has a U-shaped cutout to define a retainer finger which is engagable with the spout.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/341,733 US6877172B2 (en) | 2003-01-14 | 2003-01-14 | Docking collar for a faucet having a pullout spray head |
US10/341,733 | 2003-01-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2449644A1 CA2449644A1 (en) | 2004-07-14 |
CA2449644C true CA2449644C (en) | 2010-05-04 |
Family
ID=32681570
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2449644A Expired - Fee Related CA2449644C (en) | 2003-01-14 | 2003-11-17 | Docking collar for a faucet having a pullout spray head |
Country Status (2)
Country | Link |
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US (1) | US6877172B2 (en) |
CA (1) | CA2449644C (en) |
Families Citing this family (52)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8939429B2 (en) | 2004-01-12 | 2015-01-27 | Masco Corporation Of Indiana | Spout assembly for an electronic faucet |
US7997301B2 (en) * | 2004-01-12 | 2011-08-16 | Masco Corporation Of Indiana | Spout assembly for an electronic faucet |
US7690395B2 (en) | 2004-01-12 | 2010-04-06 | Masco Corporation Of Indiana | Multi-mode hands free automatic faucet |
EE00538U1 (en) * | 2004-12-16 | 2005-07-15 | Oja Ian | Accessory for personal electronic device |
US7631372B2 (en) * | 2005-03-14 | 2009-12-15 | Masco Corporation Of Indiana | Method and apparatus for providing strain relief of a cable |
US8104113B2 (en) * | 2005-03-14 | 2012-01-31 | Masco Corporation Of Indiana | Position-sensing detector arrangement for controlling a faucet |
US9315975B2 (en) | 2005-06-17 | 2016-04-19 | Delta Faucet Company | Magnetic coupling for sprayheads |
US7753079B2 (en) | 2005-06-17 | 2010-07-13 | Masco Corporation Of Indiana | Magnetic coupling for sprayheads |
US7909061B2 (en) * | 2005-06-17 | 2011-03-22 | Masco Corporation Of Indiana | Magnetic coupling for sprayheads |
US7406980B2 (en) * | 2005-08-29 | 2008-08-05 | Masco Corporation Of Indiana | Waterway connection |
US7415991B2 (en) * | 2005-12-20 | 2008-08-26 | Masco Corporation Of Indiana | Faucet spout with water isolating couplings |
US7472433B2 (en) * | 2006-01-05 | 2009-01-06 | Masco Corporation Of Indiana | Method and apparatus for determining when hands are under a faucet for lavatory applications |
US8365767B2 (en) | 2006-04-20 | 2013-02-05 | Masco Corporation Of Indiana | User interface for a faucet |
US8162236B2 (en) | 2006-04-20 | 2012-04-24 | Masco Corporation Of Indiana | Electronic user interface for electronic mixing of water for residential faucets |
US8118240B2 (en) | 2006-04-20 | 2012-02-21 | Masco Corporation Of Indiana | Pull-out wand |
US9243756B2 (en) | 2006-04-20 | 2016-01-26 | Delta Faucet Company | Capacitive user interface for a faucet and method of forming |
US8089473B2 (en) | 2006-04-20 | 2012-01-03 | Masco Corporation Of Indiana | Touch sensor |
US8991425B2 (en) | 2006-05-26 | 2015-03-31 | Delta Faucet Company | Waterway assembly including an overmolded support plate |
US7766043B2 (en) | 2006-05-26 | 2010-08-03 | Masco Corporation Of Indiana | Faucet including a molded waterway assembly |
US20080122691A1 (en) * | 2006-11-27 | 2008-05-29 | Carani Sherry L | Tracking system and method with multiple time zone selector, dynamic screens and multiple screen presentations |
US9243392B2 (en) | 2006-12-19 | 2016-01-26 | Delta Faucet Company | Resistive coupling for an automatic faucet |
US7806141B2 (en) * | 2007-01-31 | 2010-10-05 | Masco Corporation Of Indiana | Mixing valve including a molded waterway assembly |
US7717133B2 (en) * | 2007-01-31 | 2010-05-18 | Masco Corporation Of Indiana | Spout tip attachment |
US20080178957A1 (en) * | 2007-01-31 | 2008-07-31 | Masco Corporation Of Indiana | Tube assembly |
US7748409B2 (en) * | 2007-01-31 | 2010-07-06 | Masco Corporation Of Indiana | Overmold interface for fluid carrying system |
WO2008094651A1 (en) | 2007-01-31 | 2008-08-07 | Masco Corporation Of Indiana | Capacitive sensing apparatus and method for faucets |
US8376313B2 (en) | 2007-03-28 | 2013-02-19 | Masco Corporation Of Indiana | Capacitive touch sensor |
EP2574701A1 (en) | 2007-12-11 | 2013-04-03 | Masco Corporation Of Indiana | Electrically controlled Faucet |
US9151397B2 (en) | 2008-04-10 | 2015-10-06 | Delta Faucet Company | Molded waterway for a two handle faucet |
WO2009158497A1 (en) * | 2008-06-25 | 2009-12-30 | Masco Corporation Of Indiana | Centerset faucet with mountable spout |
US8104512B2 (en) * | 2008-09-25 | 2012-01-31 | Masco Corporation Of Indiana | Spout tip retention method |
US8627844B2 (en) * | 2009-10-30 | 2014-01-14 | Masco Corporation Of Indiana | Magnetic escutcheon mounting assembly |
US8567430B2 (en) | 2009-10-30 | 2013-10-29 | Masco Corporation Of Indiana | Magnetic coupling for faucet handle |
US8776817B2 (en) | 2010-04-20 | 2014-07-15 | Masco Corporation Of Indiana | Electronic faucet with a capacitive sensing system and a method therefor |
US8561626B2 (en) | 2010-04-20 | 2013-10-22 | Masco Corporation Of Indiana | Capacitive sensing system and method for operating a faucet |
US8746596B2 (en) * | 2010-06-18 | 2014-06-10 | Neoperl Gmbh | Manual spray head |
US8857744B2 (en) * | 2010-12-08 | 2014-10-14 | Kochek Company, Inc. | Sprinkler head hose adapter |
US8739826B2 (en) | 2011-03-11 | 2014-06-03 | Masco Corporation Of Indiana | Centerset faucet body and method of making same |
US9259744B2 (en) * | 2011-04-22 | 2016-02-16 | Kohler Co. | Faucet |
US11091901B2 (en) * | 2011-07-13 | 2021-08-17 | Delta Faucet Company | Faucet handle with angled interface |
US8931500B2 (en) | 2012-02-17 | 2015-01-13 | Masco Corporation Of Indiana | Two handle centerset faucet |
BR112014026013A2 (en) | 2012-04-20 | 2017-06-27 | Masco Corp | tap that includes a detachable bar with capacitive detection |
US9181685B2 (en) | 2012-07-27 | 2015-11-10 | Kohler Co. | Magnetic docking faucet |
US9284723B2 (en) | 2012-07-27 | 2016-03-15 | Kohler Co. | Magnetic docking faucet |
US9840831B1 (en) * | 2016-06-13 | 2017-12-12 | Kohler Co. | Sprayhead retraction assembly |
CN108951769B (en) * | 2017-05-25 | 2023-11-03 | 漳州松霖智能家居有限公司 | Drawing water outlet device |
EP3524741B1 (en) * | 2018-02-09 | 2021-03-17 | Xiamen Solex High-Tech Industries Co., Ltd. | Extraction-type water discharging device |
US10669701B2 (en) | 2018-08-08 | 2020-06-02 | Kohler Co. | Spray indexing mechanism for faucet |
US11346088B2 (en) | 2018-08-23 | 2022-05-31 | Spectrum Brands, Inc. | Faucet head alignment system |
US11053670B2 (en) | 2018-08-23 | 2021-07-06 | Spectrum Brands, Inc. | Faucet spray head alignment system |
CA3065660C (en) * | 2019-09-30 | 2023-09-26 | Delta Faucet Company | Faucet handle with angled interface |
CA3120827A1 (en) * | 2020-06-03 | 2021-12-03 | Spectrum Brands, Inc. | Slow close spray head faucet |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3339849A1 (en) * | 1983-11-04 | 1985-05-15 | Friedrich Grohe Armaturenfabrik Gmbh & Co, 5870 Hemer | Holder for hand-held showers |
US5934325A (en) * | 1998-09-17 | 1999-08-10 | Moen Incorporated | Pullout faucet wand joint |
US6381770B1 (en) * | 2001-02-23 | 2002-05-07 | Kevin Norman Raisch | Extendable bathtub spout |
US6588453B2 (en) * | 2001-05-15 | 2003-07-08 | Masco Corporation | Anti-wobble spray head for pull-out faucet |
-
2003
- 2003-01-14 US US10/341,733 patent/US6877172B2/en not_active Expired - Fee Related
- 2003-11-17 CA CA2449644A patent/CA2449644C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2449644A1 (en) | 2004-07-14 |
US6877172B2 (en) | 2005-04-12 |
US20040135010A1 (en) | 2004-07-15 |
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