Title:
Tape applying machine
United States Patent 2192634


Abstract:
The invention relates generally to a portable or hand machine for applying adhesive tape and more particularly to the provision of such a machine for applying adhesive tape to the leather I upper portions of shoes to cover the decorative perforations in the leather and prevent the lining from...



Inventors:
Blomquist, Roy A.
Application Number:
US19490238A
Publication Date:
03/05/1940
Filing Date:
03/09/1938
Assignee:
Blomquist, Roy A.
Primary Class:
Other Classes:
12/103, 156/523
International Classes:
A43D43/06
View Patent Images:



Description:

The invention relates generally to a portable or hand machine for applying adhesive tape and more particularly to the provision of such a machine for applying adhesive tape to the leather I upper portions of shoes to cover the decorative perforations in the leather and prevent the lining from showing through the perforations.

The general object of the invention is to provide a new and improved tape applying machine. Other objects include the provision, in such a machine, of means for mounting a roll of tape so as to feed automatically, means for severing the tape, means for automatically resetting the tape applying mechanism, after a piece has been U severed, so as to permit the workman to proceed with the next operation, and means for placing a drag on the tape as it is applied so as to stretch it, and thereby reduce or take out the stretch in the leather to which the tape is applied.

0 A further object is to provide a portable tape applying machine which may be operated by the use of one hand and manipulated much in the manner of an ordinary flat iron, the tape being fed from the tip or point of the body member of W the device. An important object is the provision of a tape applying machine which not only facilitates application of tape in straight lines but which will also apply tape along curved lines.

This reduces the cost of taping materially since 80 it enables the use of narrow tape following the curve whereas formerly a wide tape was applied in a cord-like manner.

Other objects and advantages will become readily apparent from the following detailed description taken in connection with the accompanying drawings, in which: Fig. 1 is a side elevation of a preferred form of the invention in the process of applying tape.

Fig. 2 is a front elevation thereof.

Fg. 3 is a fragmentary section along the line 3-3 of Fig. 2 looking in the direction of the arrows.

Fig. 4 is a fragmentary side elevation showing the machine in the process of severing the tape. Fig. 5 is a fragmentary bottom view of the invention as in Fig. 1.

Fig. 6 is a fragmentary section along the line "-6 of Fig. 7.

Fig. 7 is a fragmentary section along the line 1-1 of Fig. 2.

Fig. 8 is a view of a part of a leather shoe upper with tape applied thereto.

While my invention is susceptible of embodiment in many different forms, I have shown in 6s the drawings and will herein describe in detail one such embodiment, with the understanding that the present disclosure is to be considered as an exemplification of the principles of the invention and is not intended to limit the invention to the embodiment illustrated. The scope of the invention will be pointed out in the appended claims.

In the form chosen for purposes of disclosure, the invention is portrayed as a portable machine having a body member or block 10 provided at one end with a pair of wheels II mounted on headed screw devices II', and at its other end with a pair of tape applying rollers 12, so that the machine may readily be moved over a plane surface. A frame 13 is secured to the upper surface of the block 10 by means of screw devices 14 which pass through a horizontal portion 13' of the frame and into the block. The frame has an upstanding portion I3", to the upper end of which a tape reel 15 is rotatably secured. A handie 16 is secured to the frame to facilitate handling.

The invention provides means for guiding and placing a drag upon a tape 17 which is fed from a roll 18 mounted on the tape reel 15. As illustrated herein, the guide and drag means is mounted on an upwardly extending portion or post I1' at the forward end of the block 10 and consists generally of a vertically slidable guide plate 19 which is movable from a lower normal position, as illustrated in Figs. 1, 2 and 7, to a raised position, as illustrated in Fig. 4. A Ushaped member 20 surrounds the block portion 10' and is secured at its forward ends to the plate 19 by means of a plurality of screws 21 so as to retain the plate member 19 in fitted slidable engagement with the block portion 10'.

The tape 17 passes downwardly from the roll 18 and over the forward surface of the plate 19 (as illustrated most clearly in Fig. 7) and then down under the rollers 12, so that by pressing downwardly on the handle 16 and moving the device forwardly (toward the left in Fig. 1), the tape is unreeled from the roll 18 and applied to, the surface of the material 25 over which the device is moved. In order to facilitate the feeding of the tape to the rollers 12, the lower end of the plate 19 is preferably curved at IS' (Figs. 1 and 7), and side ribs 26 and 21 are provided to form a channel for guiding the tape over the surface 19. As illustrated herein, these side ribs (Figs. 2 and 3) are secured to the plate 19 at their upper ends by screw devices 32 so as to permit lateral adjustment of the lower ends of the ribs to compensate for different widths of so tape. The lower end of the rib 26 has a laterally extending portion 28 which is slotted at 29 to admit a screw device 29', the reduced portion of which passes through the slot and into § threaded engagement with the rib 27, as shown in Fig. 3. When the screw devices 32 and 29' are tightened, the guide ribs are rigid with the plate and form a channel.

In order to take the stretch out of the tape -as it is applied, means is provided for placing a drag on the tape. This means is herein shown in the form of a spring member 30 secured at its upper end to a cross bar 31 which extends across the upper ends of the side ribs 26 and 27 and is secured thereto by means of the screw devices 32. The spring 30 is fastened to the cross bar by means of a plurality of screw devices 33 in such a manner that the lower end of the spring is urged toward the right (Figs. 1, 4 Is and 7) so as to drag against the downwardly moving tape 17. Preferably, the lower end of the spring 30 is notched to provide teeth 30'.

Means is also provided for severing the tape 17 whenever the operator has completed the appliScation of a stretch of tape. In the preferred form of the invention shown herein, this means comprises a severing means or knife 35 secured to one end of a lever 36 which is pivotally mounted intermediate its ends on the upper end of the block portion 10' by means of a transversely extending pivot member 37. The knife 35 is secured to a laterally bent portion 36' of the lever 36 by means of screw devices 37 and preferably has a slanting edge 35' to facilitate cutting the W tape when the lever 36 is pivoted in a counterclockwise direction from the position shown in Figs. 1 and 7 to that shown in Fig. 4. Further to facilitate the cutting of the tape, a slot 38 is formed in the forward edge of the block 10, and the guide plate 19, together with the drag means supported thereon, are raised simultaneously from the position shown in Fig. 7 to that shown in Fig. 4, so that the portion of the tape cut by the knife 35 is then stretched under the tension 4g caused by the upward movement of the guide and drag means.

In order to operate the severing knife, an operating lever 40 is pivotally mounted on the upright portion 13" of the frame by means of a 60 pivot pin 41 which extends through a cylindrical member 41' welded to the frame portion 13".

The lever 40 is provided with a thumb knob 42 so that when the handle 16 is grasped by the right hand of an operator, his thumb may readily g be applied to the knob 42 without loosening his grip on the handle. The other end of the operating lever 40 is connected by means of a link 43 to the free end 36" of the knife lever 36, so that when the knob 42 is depressed the knife lever is 0 pivoted in a counterclockwise direction from the position shown in Fig. 1 to that shown in Fig. 4.

In order to raise the guide and drag means during this severing operation, a link 44 is secured at its lower end Cby means of a pivot device 45) * to an upwardly extending ear 46 formed on the U-shaped member 20 which is secured to the plate 19. The upper end of the link 44 is secured by a pivot member 47 to an intermediate point on the operating lever 40. As will be readily apparent from the drawings and particularly Figs. 1 and 4, the link 44 functions to raise the guide and drag means from the position shown in Fig. 1 to that shown in Fig. 4 when the thumb knob 4? of the operating lever is depressed to T| operate the tape severing knife.

Means is preferably provided for resetting the machine for a succeeding tape applying operation upon the completion of the tape severing operation, and for this purpose a coil spring 50 is hooked at one end to an intermediate offset por- S tion 40' of the operating lever 40 (see Figs. 2 and 7) and at its other end is secured to the upwardly extending frame portion 13" by means of an anchoring screw device 51. This spring acts to pull back the operating lever 40.from the position shown in Fig. 4 to the position shown in Fig.

1. This movement of the operating lever causes a return movement of the knife lever 36 and at the same time causes a return or downward movement of the guide and drag means. U It is to be noted that when the guide and drag means are raised to the position shown in Fig. 4 they are raised sufficiently high to leave a piece of tape 17 extending downwardly below the lower curved end 19' of the guide plate. When the U device is automatically reset for the next tape applying operation, the guide and drag means in their downward movement unreel tape from the reel 18, due to the action of the drag spring 30 in securely holding the tape against the guide 3 plate 19 and against backward or upward movement thereon. When the guide and drag means reach their lower position, as shown in Fig. 7, the free end of the tape 17 then extends downwardly a sufficient distance so that it will reach under the first roller 12, as shown in Fig. 7, and permit the operator to proceed with the application of the tape. Although the free end of the tape may extend straight down from the end of the plate 19, it is readily caused to move under the roller 12 merely by tilting the device slightly and pointing it into the material on which the tape is being applied.

In the exemplary form of the invention, the block 10 is arched on its under surface at 10" and the forward portion of the block is provided with a longitudinally extending channel-like recess 52 (Figs. 2, 5 and 7). Roller supporting bars 53, secured together by a cross piece 54, are inserted in the recess 52 and secured to the block 10 by means of screw devices 55. The rollers 12 have trunnions 12' fitting into suitable bores in the bars 53.

The tape supporting reel 15 is herein shown mounted on a pivot device 56 secured to the upper end of the frame portion 13". A diametrically extending retaining bar 57 is provided on one side of the reel and a pair of radially extending retaining bars 58 and 58' are provided on the other side of the reel, the bar 58' being provided with a handle 58" to facilitate rotating this bar approximately 180" to an upright position to permit installation of a tape roll.

There is illustrated in Fig. 8 a portion 60 of the leather upper of a shoe on which pieces of gg tape have been applied to cover up perforations (not shown) in the leather. Not only has a piece of tape been applied along a straight line, as indicated at 61, but also pieces have been applied along various curved lines, as indicated at 62, 63, 6a 64, and 65. In order to apply the tape along a curved line, such as illustrated, it is merely necessary for the operator to steer the device along the curve, much as a flat iron is steered around on an article being ironed. Since in the past a curved line of perforations have been covered by means of a piece of tape applied in a straight line, a piece of tape to cover the perforations covered by the tape 64 would have to be of the size indicated by the dashed lines 64'. The saving re- 7y suiting from the use of the present invention will be readily apparent.

In operating the preferred form of the invention, a roll 18 of tape Is applied to the reel IB between guide bars 67, B8 and 58'. The bar 5B' may be pivoted upwardly in a well known manner to permit the roll 18 to be applied. The tape II is stretched downwardly over the guide plate 19 and under the drag spring 30 with a sufficient end projecting to reach under the first roller 12, the adhesive part of the tape being toward the left (Figs. 1 and 7), so that it is pressed downwardly on the surface of the material to which it is applied. In applying tape to a leather shoe 16 upper, such as shown in Fig. 8, it is merely necessary to place the device so that the free end of the tape under the first roller 12 is pressed downwardly over one end of a row of perforations.

Thereafter, the device is moved in the direction - of the line of perforations, the operator applying sufficient pressure on the handle 16 to draw the tape through the drag means. At the same time, the device may be moved in a straight or a curved line, as desired. When tape has been w applied qver substantially the entire row of perforations, the operator can, by stopping the device and depressing the thumb knob 42, cause the knife 35 to sever the tape, as illustrated in Fig. 4. The device is then moved ahead sufflc ciently to apply the upward extending end of the severed piece of tape. The device may then be removed and reset merely by releasing the thumb knob 42. During the application of the tape, the drag means maintains the .tape in a stretched - condition as it is applied. This is advantageous in that it counteracts any later stretching in the leather.

I claim as my invention: 1. A tape applying machine having, in combi49 nation, a block adapted to be moved over the material to which the tape is applied, a roller adJacent the forward end of the block for pressing the tape onto such material, means for supporting a roll of tape on said block, said block having 4S an upstanding member above said roller and a transverse knife receiving slot adjacent said roller, a tape guide member slidably mounted on said upstanding member, a spring tensioned drag member for the tape carried on said guide n0 member, a knife for severing the tape movable through the tape and into said slot, a lever pivotally mounted on said upstanding member and carrying said knife at one end, an operating lever pivotally mounted upon the tape supporting s5 means, a link connecting said levers, and a second link connecting said operating lever and said guide member for raising the guide member above said slot during the tape severing operation.

2. A device of the character described having, S0 in combination, a portable support, a tape applying roller rotatably supported thereon, a frame extending upwardly from said support and including a horizontal handle spaced above said support and a tape reel support above the handle, a tape reel on said tape reel support, means for guiding tape from a roll on said reel to a point substantially tangential to and contacting the tape applying roller, and means for severing the tape adjacent said roller including an operating member pivotally supported on said frame with one end located within the reach of an operator's thumb when his hand grasps said handle.

3. A device of the character described having, in combination, a support, a tape applying roller rotatably supported thereon, a frame extending upwardly from said support and including a handle and a tape reel support, means for guiding tape from a roll on said reel support to the tape applying roller, means carried on the guide means for placing a drag on the tape so as to pro- 6 vide a stretched run of tape adjacent the roller, means for severing the tape adjacent said roller, means for retracting the guide and drag means during the severing operation to permit the cut to be made in the stretched run of the tape at a point leaving sufficient tape extending to reach the roller when the guide and drag means are returned to their normal position, and means for returning the guide and drag means to their normal positions and thereby reset the device for the next tape applying operation.

4. A tape applying machine having, in combination, a block adapted to be moved over the material to which the tape is applied, a roller adjacent the forward end of the block for pressing 25 the tape onto such material, means for supporting a roll of tape on said block, said block having an upstanding member above said roller, a tape guide member slidably mounted on said upstanding member, a spring drag member for the tape carried on said guide member, a knife for severing the tape, a lever pivotally mounted on said upstanding member and carrying said knife at one end, an operating lever pivotally mounted upon the tape supporting means, a link connecting said 38 levers, and a second link connecting said operating lever and said guide member for raising the guide member during the tape severing operation. • U 5. A tape applying machine having, in combination, a block adapted to be moved over the material to which the tape is applied, a roller adjacent the forward end of the block for pressing the tape onto such material, means for supporting a roll of tape on said block, said block having 40. an upstanding member above said roller, a tape guide member slidably mounted on said upstanding member, a knife for severing the tape, a lever pivotally mounted on said upstanding member and carrying said knife at one end, an operating lever pivotally mounted upon the tape supporting means, a link connecting said levers, and a second link connecting said operating lever and said guide member for raising the guide member during the tape severing operation.

6. A tape applying machine having, in combination, a portable frame, means adjacent the forward end of said frame for applying tape, a handle for manipulating the machine, means for g supporting a roll of tape on said frame, means for guiding the tape to said tape applying means comprising a guide member slidably mounted on said frame for movement from a lower guiding position to an upper withdrawn position, at spring tensioned drag device for the tape carried on said guide member, means for raising said guide member to its withdrawn position, and a knife for severing said tape operable by said last mentioned means as the guide member is withdrawn to cut the tape.

7. A tape applying machine having, in combination, a portable frame, means adjacent the forward end of said frame for applying tape, a handle for manipulating the machine, means for supporting a roll of tape on said frame, means for guiding the tape to said tape applying means comprising a guide member slidably mounted on said frame for movement from a lower guiding position to an upper withdrawn position, means 7T for raising said guide member to its withdrawn position, and a knife for severing said tape operable by said last mentioned means as the guide member is withdrawn to cut the tape.

8. A tape applying machine having, in combination, a portable frame, means adjacent one end of said frame for applying tape, a handle for manipulating the machine, means for supporing a roll of tape on said frame, means for feeding the end of the tape to said tape applying means * comprising a member slidably mounted on said frame for movement toward and from the applying means and a spring tension drag device for the tape carried on said member, means for moving said feeding means away from the tape applying means, and a knife for severing said tape operable by said last mentioned means.

9. A device of the character described having, in combination, a portable frame, a tape applying roller rotatable thereon, a handle for manipulating said frame, means for supporting a roll of tape on said frame, means for placing a drag on the tape so as to provide a stretched run of tape adjacent said roller, said drag means being mov- I able on the frame away from said roller to increase the length of the stretched run, means for severing the tape adjacent said roller, means for retracting the drag means during the severing operation to permit the cut to be made in the stretched run of the tape at a point leaving sufficient tape extending to reach the roller when the drag means is returned to its normal position adjacent the roller, and means for returning the drag means to its normal position and thereby U reset the device for the next tape applying operation.

ROY A. BLOMQUIST.