Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3186892 A
Publication typeGrant
Publication dateJun 1, 1965
Filing dateNov 27, 1961
Priority dateNov 27, 1961
Publication numberUS 3186892 A, US 3186892A, US-A-3186892, US3186892 A, US3186892A
InventorsKenneth S Walthers
Original AssigneeKenneth S Walthers
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Construction of hand-operated tape dispensers
US 3186892 A
Abstract  available in
Images(2)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

June 1, 1965 3,186,892

couswnucuon 0F HAND-OPERATED TAPE DISPENSERS K. S. WALTHERS 2 Sheets-Sheet 1 Filed NOV. 27, 1961 KENNETH S. WALTHERS INVENTOR.

June 1955 K. s. WALTHERS 3,186,892

CONSTRUCTION OF HAND-OPERATED TAPE DISPENSERS Filed Nov. 27, 1961 2 Sheets-Sheet 2 12 BAL .L I: 86 80 KENNETH s. WAL THERS L INVENTOR. a5 1 1 a7 \1 1: J X gun 5.1g. 5

United States Patent C) Filed Nov. 27, 1961, Ser. No. 155,095 3 Claims. (Cl. 156523) This invention relates to the construction of tape dispensers, and the preferred forms provide devices that can be operated with one hand to engage, apply, and cutofl tape of a variety of types. Sealing tape for closing cartons, masking tape for covering surfaces adjacent areas to be painted, and electricians tape for insulating wire splices are examples of the material that can be handled by devices embodying this invention. The dispensers can be placed in the pocket of the workman, or hung on a convenient hook when not in use. The preferred forms are always ready for instant use. Certain components of the device facilitate the application and positioning of the tape, and the unit has a much greater field of utility than that of a mere storage magazine.

The devices include a frame acting as a container for the tape, and also a hollow cantilever extension of the frame through which the protected tape moves to the point of application. At this point, the preferred forms of the devices include a bearing member for holding the tape against a work surface, and a cut-off mechanism for severing the tape as close to the bearing member as possible. In this invention, the frame serves the purpose of a handle, with the positioning of the actuator of the cut-off mechanism such that the manipulation of it is easily performed without shifting the grip on the device, or using more than one hand. be kept in mind that the forces required to strip certain types of tape from the roll are considerable, and the workmen must at all times retain a very firm grip on the device in order to properly manipulate it. Actuation of the cut-off mechanism has been accommodated to this condition.

The cut-off mechanism of the preferred form of the invention includes a guideway incorporated in the frame for accommodating a movable knife blade in a position to intersect the normal path of movement of the tape as it is being stripped off past the final bearing point of the device. In one modification of the device, the bearing member functioning as the last point of contact of the device against the tape is also a component of the guideway establishing the path of movement of the knife blade, and also functions in conjunction with the knife blade to provide for the removal of insulation from the end of a piece of wire.

It is important that the free end of the tape (after it has been severed by the cut-off mechanism) be properly positioned for the next application. If this is not done, it is most likely that the tape will become fouled within the interior of the frame, or be improperly located for convenient contact with the next work surface. Depending upon the nature of the tape to be applied, the invention provides arrangements for assuring that the free end of the tape is left in a projected position ready for proper application. The several features of the invention will be analyzed in detail through a discussion of the particular embodiments illustrated in the accompanying drawings. In the drawings:

FIGURE 1 presents a perspective view showing one modification of the device held in the usual position for application of sealing tape to a carton.

FIGURE 2 illustrates the same device in perspective, and showing the unit as the cut-off mechanism is actuated.

It must Patented June 1, 1965 FIGURE 3 illustrates the manner of application of the device in a difierent position, such as is commonly encountered in'the application of masking tape.

FIGURE 4 presents a fragmentary sectional elevation of the device illustrated in FIGURES 1, 2, and 3.

FIGURE 5 illustrates a modified form of the invention intended primarily for the application of electricians tape.

FIGURE 6 illustrates a movable arm incorporated in the device shown in FIGURE 4 for providing the final bearing point against the tape as it is being applied.

FIGURE 7 presents a fragmentary sectional elevation of the device shown in FIGURE 5, in the tape stripping position.

FIGURE 8 illustrates the same device shown in FIG- URE 7, with the cut-off mechanism in the actuated position.

FIGURE 9 illustrates a modification of the invention in which the cut-off mechanism incorporates a means for removing insulation from wire. FIGURE 9 is in the retracted position of the knife.

FIGURE 10 illustrates the projected position of the knife, and showing the relationship of the mechanism to a piece of wire from which insulation is being removed from the end prior to splicing.

Referring to FIGURES l, 2, 3, 4, and 6, the illustrated device includes a frame generally indicated at 20 and including a container portion 21 which accommodates a roll of tape shown at 22 in FIGURE 4. The central cylindrical member 23 provides a tubular journal on which the roll of tape 22 is loosely and rotatively received. According to the preferred method of manipulating the device, the tubular journal 23 can receive the thumb of the workman, with the fingers being in position adjacent the lateral extension 24 of the frame for the application of the necessary forces to strip the tape from the roll 22, and apply the necessary hearing to force it properly into engagement with the work surface 25 of a carton 26.

The lateral extension 24 of the frame is hollow and box-like in construction, and provides a sheltering conduit for the free end 27 of the tape after it has been stripped from the roll 22. In handling tape that has a very strong adhesive characteristic, such as the nylonreinforced tape commonly used in the closure of carton flaps, it is desirable to incorporate a roller 28 immediately adjacent the periphery of the spool 22, with'the free end 27 being threaded through the device in such a manner that the roller 28 bears upon the gummed surface. The effect of this arrangement is to securely position the free end 27, and avoid fouling Within the extension 24. The roller 28 is preferably rotatably mounted on a pin 29 secured in any convenient fashion at its opposite ends to the walls of the extension 24. The guide roller 3% is similarly mounted on the pin 31, and assists in positioning the outer portion of the free end 27 by providing an opening between the roller 36 and the edge 32 of the wall 33 of the extension 24 for the emergence of the tape. It would be obvious from an inspection of FIGURE 4 that the positioning of the free end 27 in this manner will make the engagement of the tape with the next work surface a very simple procedure. The position of the cut-off mechanism is such that FIGURE 4 illustrates the approximate position of the free end of the tape at all times.

After the free end 27 has been first placed in contact with a work surface, the device is manipulated so that the extension 24- is brought downward with respect to the tape (in the position shown in FIGURE 1), and the hearing roller assembly 34 will come into engagement with the back of the tape, which is normally not coated with adhesive. The roller assembly 34 is rotatably mounted on the pivot arm 35; and this arm is itself rotatably supported on the pin 36 secured at opposite ends to the walls of the hollow extension 24. A torsion spring 37 surrounding the pin 36 has one end engaging the arm 35, and the opposite end engaging the tab 38 of the extension 24 to apply a biasing action tending to rotate the arm 35 in a counter-clockwise direction, as viewed in FIGURE 4. The arm 35 is best shown in FIGURE 6, and is essentially U-shaped in configuration. The back 39 connects the side flanges 40 and 41, and the spacing between these flanges is reduced at the outer end of the arm to provide for the support of the roller assembly 34 at intermediate points along the roller axis. This roller assembly is in the form of three segments 42-44, all being rotatably mounted on the pin 45. With this arrangement, the overall axial length of the roller assembly 34 is slightly'less than the space between the side walls defining the extension 24, and bearing force is thereby applied to the free end 27 of the tape across substantially the full width thereof, and particularly at the outer edges.

When the desired length of tape has been applied, the cut-off mechanism of the device shown in FIGURES 1 2, 3, 4, and 6 is actuated by manipulation of the sliding member 46, which is connected to the extension 24 by the rivets 47 and 48. Movement of the member 46 upwardly and to the right, as shown in FIGURE 4, will bring the cam portion 49 to bear against the underside of the back 50 of the lever 51, which is pivotally mounted on the pin 52 supported on the cars 53 which are integral with the extension 24. The lever 51 is preferably U- shaped in cross section, and includes the side flanges 54 and 55 connected to the back 50. The knife 56 is slidably mounted with respect to the extension 24 in the guideway formed by the opening between the end of the extension 24 and the bar 57. A tab 58 communicates the movement of the lever 51 to the knife 56, and the spring 59 tricians tape. The frame 61 includes a removable hollowv journal member 62 which may be detached from the frame by manipulation of the latch 63. The frame has a hollow lateral extension 64 which is open on the underside, except for the transverse member 65, which terminates in the handle abutment 66. A positioning roller 67 is rotatably mounted on the pin 68 secured to the extension 64, and the tape 69 normally moves between the roller 67 and the pivoted plate 70 rotatably mounted on the pin 71. This pin is secured at its opposite ends to the sidewalls of the extension 64, and also supports the torsion spring 72 acting between the top panel73 of the extension and the plate 70 to apply biasing action in a counterclockwise direction.

The cut-off mechanism in this modification of the invention includes a lever 74 having opposite side flanges 75 and 76 which also engage the pin 71 to form a pivotal mounting. The extension 77 of the lever provides an abutment.

the eventthat resistance is desired such as to increase the tension of the tape, a braking action can be applied. by the hand to establish resistance of the rotation of the roll 73. with respect to the frame, and thus establish any desired degree of tension in the tape 69 as it is applied to the wire 79. It should also be noted that the position of the portion 77 with respect to the pin 71 is such that any pressure applied as a result of the stripping forces will tend to rotate the lever to a position causing retraction of the knife 80, since the lever positions the knife as a result of the engagementof the tab 81. The bar 82 is spaced fromthe end of the extension 64, thus providing a guideway for the sliding movement of the knife 80, and also providing a bearing point with which forces can be applied to the tape 69. When the cutting mechanism is actuated by shifting of the thumb pressure over onto the portion of the lever to the left of the pin 71, as shown in FIGURE 7, the severing of the tape is instantly followed by a movement of the plate 70 to bring the free end of the tape into contact with the positioning roller 67, as shown in FIGURE 8. This leaves the tape free of any tendency to foul within the frame, and positions the end for ease of application to the next work surface.

When the device is used to handle electricians tape,

' it is convenient to form the knife 80 and the bar 82 as shown in FIGURES 9 and 10 to incorporate an added utility to the device.. The insulation 83 must frequently be removed from-the metal wire 84 preparatory to splicing the wire, and the V-shaped cutting edge 85 of the blade 80 may be provided with a sharpened recess 86 which cooperates with a recess 87 in the bar 82 to form an opening which will just receive the metal 84 of the wire when the knife 80 is in the projected position shown in FIGURE 8. This has the eflect of providing an annular cut around the insulation 83, and the device may be pulled to the right (as shown in FIGURE 10) with respect to the insulation, resulting in the stripping of the piece of insulation indicated at 88 from the end of the wire.

The return of the lever 74 to the FIGURE 7 position after the cut-off shown in FIGURE 8 can be accomplished either through the return of manual pressure to the portion 77, or through the use of an independent spring. The leaf spring 89 has a base 90 secured (by spotwelding or any other convenient means) to the lever 74.

' The free end 91 bears on the top panel 73 of the extension 64 to the left of the pin 71 to, induce a clockwise rotation of the lever 74, as shown.

The sides of the extensions 24 or 64 may be formed I to assist in aligning the dispenser with a strip to which tape is to be applied. This arrangement is shown best in FIGURE 4. The spaced walls 92 and 93 of the extension 24 are continued below the edge 32, as indicated at 94 and 95, to form spaced rails that may embrace a strip to be taped, or serve as a guide against a groove or ridge of a working surface to establish the tape position. This function is in addition to that of protecting the tape as it moves onto the point of application. These rails 94 and 95 are preferably rounded at the opposite ends as shown. The dispenser may be slid along the rounded side of the frame, with the tape properly applied by the bearing roller 34, and protected and positioned by the rails 94 and 95.

The particular embodiments of the present invention which have been illustrated and discussed herein are for illustrative purposes only and are not to be considered as a limitation upon the scope of the appended claims. In these claims, it is my intent to claim the entire invention disclosed herein, except as I am limited by the prior art.

I claim:

1. A tape dispenser, comprising:

a frame including a disengageable tubular journal portion for rotatably receiving a spool of tape, said frame having a lateral hollow extension forming a cantilever beam;

guide roller means rotatably mounted in said frame adjacent the normal position of the periphery of a spool mounted on said journal portion;

an arm rotatably mounted in said extension; biasing means urging said arm to a position projecting from said extension;

bearing roller means rotatably mounted at the end of.

5 said arm for movement with respect to said extension, said roller being engaged by said arm at intermediate points along the length of said roller means, said roller means having an axial length substantially equal to the inside width of said extension; cut-off means including a knife member having a V- shaped cutting edge and slidably mounted in said extension adjacent the end thereof remote from said journal portion, said knife member being disposed transversely to the normal path of movement of said tape, and movable to a position intersecting the same;

said cut-off means also including biasing means posed transversely to the normal path of movement of said tape.

3. A tape dispenser, comprising: a frame including a tubular journal portion for rotatably receiving a spool of tape, said frame having a lateral hollow extension forming a cantilever beam; and

cut-off means including a knife member movably mounted in said extension adjacent the end thereof remote from said journal portion, said knife member being disposed transversely to the normal path of movement of said tape, and movable to a position intersecting the same,

said cut-off means also including lever means pivotally mounted on said extension and engaging said knife member at a point on said lever means remote from the pivotal mounting thereof,

said cut-off means also including a cam member slidably mounted on said extension for actuating said lever.

tending to retract said knife member to a position wherein the cutting portion thereof is dis- 15 posed within said frame.

2. A tape dispenser, comprising:

a frame for rotatably receiving a spool of tape, said frame having a lateral hollow extension forming a cantilever beam; 20

an arm movably mounted in said extension; biasing means urging said arm to a position projecting from said extension;

bearing roller means rotatably mounted at the end of said arm for movement with respect to said exten- 5 References Qited by the Examiner UNITED STATES PATENTS Re. 14,276 3/17 MacLaurin 156-523 2,452,584 11/48 Luebkeman l56523 S1011, sa1d roller being engaged by said arm at inter- 2 500 157 3/50 Deutsph mediate points along the length of said roller means, 2683547 7/54 Fischgr and said roller means having an axial length sub- 4 12/55 David 156 523 stantially equal to the inside width of said extension; 2798552 7/57 A1 dri ch and 30 3,051,223 8/62 Waltz 156527 cnt-oflf means including a knife member mounted in said extension adjacent the end thereof remote from E B E P" E said ournal portion, said knlfe member being (118- ARL M ERG RT "man, xamlrer

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2452584 *Jul 26, 1946Nov 2, 1948David Luebkeman JAdhesive tape applying device
US2500157 *Jun 24, 1948Mar 14, 1950Albert Deutsch FritzApplier for applying a length of an adhesive tape to a surface
US2683547 *Apr 3, 1952Jul 13, 1954Fischer Howard LTape dispenser
US2727646 *Jan 23, 1953Dec 20, 1955David Blanche RTape dispenser
US2798552 *Apr 4, 1951Jul 9, 1957Minnesota Mining & MfgHeavy duty hand dispensers
US3051223 *Apr 10, 1961Aug 28, 1962E O Bulman Mfg Company IncCutting device
USRE14276 *Jun 23, 1915Mar 20, 1917 Sealing-machikte
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3283886 *Feb 19, 1965Nov 8, 1966Chart Pak IncTape dispenser
US3374139 *May 10, 1965Mar 19, 1968George H. FritzingerTape dispenser with hand brake
US5105604 *Jul 31, 1991Apr 21, 1992Eastman Kodak CompanyMethod for light-tightly enclosing a photosensitive web roll
US5161685 *Jul 31, 1991Nov 10, 1992Eastman Kodak CompanyFlexible light-tight enclosure for photosensitive web roll
US5323981 *Nov 13, 1992Jun 28, 1994Sequa CorporationSplicer tape system
US5470430 *Nov 7, 1994Nov 28, 1995Lewis; Tommy D.Masking apparatus
US5849144 *Nov 26, 1996Dec 15, 1998Tang; Jow-LinRetractable blade hand held tape applicators
US5906705 *Mar 14, 1997May 25, 1999Chung; Wu-HsiungRetractable blade hand held tape applicators
US6296033Jul 23, 1999Oct 2, 2001Clements Industries, Inc.Blade protector for tape applicators and dispensers
US6575345 *Dec 21, 2000Jun 10, 20033M Innovative Properties CompanyRolled sheet material dispenser with safer sheet cutting means
US6976652 *Jul 5, 2002Dec 20, 2005Kores Holding Zug AgTool for transferring a film
US8245895Dec 30, 2008Aug 21, 2012Emily Anderson KellyLeading edge retaining and cutting device and method of operating same
US20040182962 *Jul 5, 2002Sep 23, 2004Peter KoreskaTool for transferring a film
US20100162572 *Dec 30, 2008Jul 1, 2010Emily KellyLeading edge retaining and cutting device and method of operating same
Classifications
U.S. Classification156/523, 206/409, 83/922, 242/588, 225/89, 206/398, 242/916, 206/815
International ClassificationB65H35/00
Cooperative ClassificationY10S242/916, Y10S206/815, Y10S83/922, B65H35/0033
European ClassificationB65H35/00B2B2