|Publication number||US3849615 A|
|Publication date||Nov 19, 1974|
|Filing date||Nov 21, 1973|
|Priority date||Nov 21, 1973|
|Also published as||CA1014206A, CA1014206A1, DE2446399A1|
|Publication number||US 3849615 A, US 3849615A, US-A-3849615, US3849615 A, US3849615A|
|Original Assignee||Illinois Tool Works|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (7), Classifications (7)|
|External Links: USPTO, USPTO Assignment, Espacenet|
United States Patent [191 Fisher Nov. 19, 1974 SWITCH HOLDER AND ACTUATING APPARATUS IN A HINGED CLOSURE APPLIANCE  Inventor: Julian Vernon Fisher,
 Assignee: Illinois Tool Works Inc., Chicago,
 Filed: Nov. 21, 1973  Appl. No.: 417,795
 US. Cl. ZOO/61.81, 200/333, 200/153 T  Int. Cl. H01h 3/16  Field of Search ZOO/61.76, 61.81, 153 T,
 References Cited UNITED STATES PATENTS 2,053,373 9/1936 Money ZOO/61.81
2,101,748 12/1937 Michel ZOO/61.81
2,911,509 11/1959 Millerwise 200/332 3,028,869 4/1962 Jordan ZOO/61.78
3,033,966 5/1962 Dillon 200/332 3,336,458 8/1967 Hadley 200/332 3,689,724 9/1972 Labude 200/333 3,755,642 8/1973 Warner 200/153 T [5 7] ABSTRACT The embodiment of the invention disclosed herein is directed to a switch mounting and actuating assembly wherein a switch holder is provided with a plurality of spaced apart post members to receive and hold a switch body during an initial assembling operation of the switch to an appliance, such as a washing machine, or the like. The switch mounting and actuating assembly has holes formed therein to be aligned with holes formed through the switch body and which holes are ultimately aligned with apertures formed in the peripheral margin portion of an opening formed within the appliance receiving the same. An actuating member is removably pivotally secured to the switch holder and is C-shaped in configuration having a lower portion thereof extending a distance greater than the upper portion. A pad is formed at the terminating end of the lower portion and angled relative thereto to provide a slide surface upon which an actuating pin engages. The switch mounting and actuating assembly is permanently held in position in the appliance by fastening means such as rivets or the like passing through the apertures in the appliance and the holes formed through the switch body and switch holding member.
SWITCH HOLDER AND ACTUATING APPARATUS IN A HINGED CLOSURE APPLIANCE BACKGROUND OF THE INVENTION The embodiment of the invention disclosed herein is directed generally to switch mounting and actuating assemblies, and more particularly to a switch mounting and actuating assembly utilized in conjunction with appliances such as top-loading washing machines or front-loading dryers, or the like.
Switch mounting and actuating devices heretofore have been made from metal stamping structures which have been relatively complicated and expensive to manufacture. Furthermore, since these types of switch mounting devices are utilized in areas of high himidity, they have a tendency to rust and become weakened and/or defective as a result.
SUMMARY OF THE INVENTION Accordingly, it is an object of this invention to provide a new and improved switch mounting and actuating assembly to be incorporated in an appliance such as a washing machine or the like.
Another object of this invention is to provide a switch mounting and actuating assembly which is formed of a plastic molded structure thereby eliminating the possibility of rust and ultimate malfunction.
Still another object of this invention is to provide a switch mounting and actuating assembly which is efficient and reliable in operation while also being inexpensive and simple to manufacture.
Briefly, the switch structure of this invention is actuated when the lid of a washing machine is closed. The structure includes a switch holder and a C-shaped actuating member which is snap-fit into a recess formed within the holder and thereby provides a pivotal connection between the two components. A return spring is also snap-fit into a recess formed in the actuating member and engages the underside of the wall-forming structure of the appliance. A switch body is placed within the holder and temporarily held in registry therewith so as to maintain holes in the switch holder and the switch body in alignment during the assembly operation. The holes are ultimately placed in registry with apertures formed in the wall structure of the appliance so that fastening means such as pop rivets, screws, or the like, may be inserted therein and locked in place.
Many other objects, features and advantages of this invention will be more fully realized and understood from the following detailed description when taken in conjunction with the accompanying drawings wherein like reference numerals throughout the various views of the drawings are intended to designate similar elements or components.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a top perspective view of an appliance utilizing the switch mounting and actuating assembly which is constructed in accordance with the principles of this invention;
FIG. 2 is a perspective view illustrating a switch body inserted into the switch mounting and actuating assembly prior to securing the same into the appliance of FIG. I;
FIG. 3 is a perspective view illustrating the switch body in phantom line and further illustrating fastening means passing through apertures formed therein;
FIG. 4 is a perspective view of the C-shaped actuating member of the assembly of FIG. 3;
FIG. 5 is a side elevational sectional view taken along line 5-5 of FIG. 1 illustrating the mounting of the switch and switch body in the appliance illustrated herein; and
FIG. 6 is a top sectional view taken along line 6-6 of FIG. 5.
DETAILED DESCRIPTION OF THE ILLUSTRATED EMBODIMENT Referring now to FIG. I, there is seen a switch mounting and actuating assembly designated generally by reference numeral 10 that is shown in connection with an appliance 11, here being a top-loading washing machine. The switch mounting and actuating assembly 10 is placed in close proximity to an opening 12, preferably being located at the margin portion 13 opposite that of a pair of hinges 16 and 17'associated with a cover member 14. Also, in the illustrated embodiment, a splash shield 18 is associated with the switch mounting and actuating assembly 10 to prevent water or other moisture from splashing onto the switch structure during a washing operation.
Referring now to FIGS. 2, 3 and 4, the switch mounting and actuating assembly 10 is illustrated as including a holder member 20 having a plurality of spaced apart post members 21 which serve to temporarily hold a switch body 19 in a position to have holes 22 of the holder 20 in alignment with the holes 23 of the switch body 19 so that a pair of screws 24 can be inserted therethrough and through apertures 26, FIG. 5, and the holes 22 and 23 to securely mount the switch mounting and actuating assembly and the switch body to the peripheral margin 13 of the washing machine 11.
Associated with the mounting and actuating assembly 10 is an actuating member 30 having substantially a C-shaped configuration, from the side view, and wherein the top portion 31 is shorter than the bottom portion 32. Also, connected to the end of the bottom portion 32 is a pad portion 33 which serves both as a striking member for a pin 35 and to close off an aperture 350 through which the pin passes when the cover member 14 is open. The actuating member 30 is pivotally connected to the holder 20 by cylindrical portions 34 engaging apertures 36. The actuating member 30 is snap-fit into operating position in the holder 20 by flexure of the downwardly depending portions 36a of the body 20.
To provide rigidness of the actuating member 30, a rib 37 is formed along the outer surface thereof and is fashioned, at the bight portion, to have a recess 38 formed to receive a clip-forming portion 39 of a leaf spring 40. The leaf spring 40 is so positioned to engage the underside 41 of the peripheral margin 13 of the washing machine to provide a continuous spring bias action of the actuating arm 30 to maintain the switch in a deactuated condition.
FIG. 5 illustrates the cover 14 as having a downwardly turned portion 50 and an inwardly turned portion 51 having an aperture 52 formed therein to receive the pin 35. The pin 35 has a shoulder 53 and a head 55 to be positioned on opposite sides of the inwardly turned portion 51 firmly to hold the pin in position.
Furthermore, in the illustrated embodiment, the peripheral portion 13 has a downwardly sloping portion 54 through which the aperture 35a is formed for receiving the pin 35. While this particular configuration of switch mounting is illustrated in the detailed disclosure, it will be understood that variations thereof may be made if desired.
The switch body 19 may take any suitable form but preferably is to have a size firmly to fit between the post members 21 for temporarily holding the switch in position during the mounting operation. The switch structure illustrated herein has snap-on terminal leads 57 and 58 and an upstanding push button 59 which is actuated by the shortened upper portion 31 of the actuating member 30.
Most advantageously, the entire switch mounting and actuating assembly, except for the leaf spring member 40, is made of molded plastic material and, therefore, is not subject to corrosion or rust as are metal components utilized for the same purpose. Accordingly, variations and modifications of this invention may be effected without departing from the spirit and scope of the novel concepts disclosed and claimed herein.
The invention is claimed as follows:
1. A switch operating mechanism for a switch having an actuator means which is secured to a housing having a movable lid and a stationary member wherein retaining means retains said switch on said stationary member so that said actuator means is in proximity to a first wall of said stationary member which is substantially flush with said lid when said lid is closed and said lid carries an actuating projection which extends through an opening in a second wall of said stationary member which is inclined with respect to said first wall and which has a portion that extends behind said lid when said lid is closed comprising operating means which assumes a first position when said lid is open and a second position when said lid is closed, means for pivotly mounting said operating means so that it can pivot between said first and second positions, a first leg positioned adjacent said first wall and said actuator means, a second leg, engagement means on said second leg, a third leg joining said first and second legs and resilient means disposed between said first wall and said operating means so as to bias said operating means towards said first position when said lid is closed, said first leg being positioned above said actuator means when said operating means is in said first position and so as to depress said actuator means when said operating means is in said second position and said second leg being positioned so that said engagement means provides a seal for said opening in said second wall when said operating means is in said first position and so that said engagement means engages said actuating projections on said lid when said operating means is pivoted from said first position to said second position.
2. A switch operating mechanism as claimed in claim 1 wherein said operating means is of a general C- shaped configuration and said first leg is substantially parallel to said second leg.
3. A switch operating mechanism as claimed in claim 1 wherein said operating means comprises a rib and said resistant means comprises a leaf spring having a first end which engages said first wall and a second end which is secured to said rib.
4. A switch operating mechanism as claimed in claim 3 wherein said rib extends over said third leg of said operating means and said second end of said resilient means comprises a clip which snaps over said rib so as to be retained thereon.
5. A switch operating mechanism as claimed in claim 1 wherein said engagement means comprises a pad on the outer end of said second leg which extends from said second leg at an angle to provide a slide surface for said actuating projection.
6. A switch operating mechanism as claimed in claim 1 wherein said pivotal mounting means comprises a pair of cylindrical projections on opposite side of said third leg and a pair of corresponding receptacles in said retaining means.
7. A switch operating mechanism as claimed in claim 4 wherein said operating means is of a general C- shaped configuration and said first leg is substantially parallel to said second leg.
8. A switch operating mechanism as claimed in claim 7 wherein said engagement means comprises a pad on the outer end of said second leg which extends from said second leg at an angle to provide a slide surface for said actuating projection.
9. A switch operating mechanism as claimed in claim 8 wherein said pivotal mounting means comprises a pair of cylindrical projections on opposite sides of said third leg and a pair of corresponding receptacles in said retaining means.
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US4171067 *||Nov 21, 1977||Oct 16, 1979||Portionmat (Engineering) Limited||Weighing and dispensing device|
|US4595228 *||Apr 30, 1984||Jun 17, 1986||Prince Corporation||Garage door opening transmitter compartment|
|US5220998 *||Mar 20, 1992||Jun 22, 1993||Bunn-O-Matic Corporation||Grinder safety switch|
|US5432309 *||Oct 21, 1993||Jul 11, 1995||Fuji Electric Co., Ltd.||Automatic vending machine and door switch apparatus|
|US5558210 *||Jul 12, 1995||Sep 24, 1996||Firma Fedag||Microswitch|
|US6126221 *||Mar 24, 1999||Oct 3, 2000||Sidler Incorporated||Universal garage door opener overhead compartment|
|US6795926||May 28, 1999||Sep 21, 2004||Dell Usa, L.P.||Prevention of power state change in response to chassis intrusion when computer system is not in powered up power state|
|U.S. Classification||200/61.81, 200/332.1, 200/333|
|International Classification||H01H21/28, H01H21/00|