US3190783A

US3190783A - Edge applying device

Info

Publication number: US3190783A
Application number: US264588A
Authority: US
Inventors: Tarnok Johann
Original assignee: Individual
Current assignee: Individual
Priority date: 1963-03-12
Filing date: 1963-03-12
Publication date: 1965-06-22
Anticipated expiration: 1982-06-22
Also published as: DE1291098B

Description

June 22, 1965 v3,190,783

J. TARNOK EDGE APPLYING 'DEVICE Filed March 12, 1963 4 Sheets-Sheet l /48 INVENTOR JOHANN TARNOK www BYZ

June 22,1965 J. TARNOK 3,190,783

EDGE APPLYING DEVICE Filed March 12, 1963 l 4 Sheets-Sheet 2 INVENTOR. JOHANN TARNOK BSYQ MC2 TTOR/VEY June 22, 1965 J. TARNOK 3,190,783

EDGE APPLYING DEVICE Filed March l2, 1963 4 Sheets-Shea?I 3 INVENTOR. JOHANN TARNOK June 22, 1965 J. TARNoK 3,190,783

EDGE APPL'YING DEVICE Filed March 12, 1965 4 Sheets-Sheet 4 Y INVENTOR JOHANN TARNOK YSQM l M MII' mi" n N' m V United States Patent Oiiice i 3,190,783 Patented June 22, 1965 Filed Mar. 12, 1963, Ser. No. 264,583 8 Claims. (Cl. T66- 482) This invention relates to an edging applying device for use in furniture and cabinet making. Specically, it relates to a device for applying a plastic or laminated nood strip to the side edges of a table top, desk, or other article of furniture. Reference is made, for example, to a plastic strip made of formica, a product of The Formica Company, now a division ot Westinghouse Electric Corporation.

One of the problem-s in applying such stripping to the corners of a table top or the like is the problem of cracking. Such corners are relatively acute, and a relatively sharp bend is accordingly required in order to conform the stripping to the configuration of the table top. It is at this bend that cracking of the stripping frequently occurs.

It is the object of this invention to provide means for mechanically applying stripping of the character described to the relatively sharp corners of a table top, desk top, or other article of furniture. Specifically, this device supports that portion of the stripping which is being bent, it causes it to be bent, and iirmly but progressively applies it to the table top. It is the rm support at the point of bending and the progressive bending of the stripping that prevents it from cracking, and securely and snugly applies it to the table top.

Briefly stated, the present device comprises an extensible frame on which a plurality of rollers are rotatably mounted, and on which rollers an endless band is provided. The stripping which is to be applied to a table top is held against the edge of the table top by means of said band, the frame is caused to extend, and the stripping is progressively pressed against the edge of the table top outwardly from the point of initial application.

An important feature of the present invention resides in the versatility of the device herein described and claimed. By the'use of selected actuating means, namely keys of diiferent configuration, the device may be operated in two directions simultaneously, meaning both to the right and to the left of a single application point, or either to the left or to the right, depending upon the needs of the individual job. Thus, it is possible by means of the present device to apply a stripping of the character under discussion to a single corner of a rectangular table top, and to progressively press said` stripping to both sides of said table top which said corner joins. In other words, the stripping would concurrently be applied both leftwardly to one side edge of the table top and rightwardly to the other side edge thereof. lf desired, said stripping may be applied to said corner and then progressively pressed leftwardly against only one side edge of the table top. Or conversely, it may be pressed rightwardly against one side edge of said table top.

The invention is illustrated in the accompanying drawing in which:

FIGURE 1 is a plan view showing the present device (mounting means excluded for clarity) in operative position relative to `an edge stripping being secured to a table top or the like. Y

FIGURE V1A is a side view on the line IA-IA of FIGURE 1.

FIGURE 2 is a section on the line 2 2 of FIGURE 1'.

FIGURE 3 is a fragmentary view on the line 3 3 of FIGURE 1.

FIGURE 4 is a section on the line 4 4 of FIGURE 3.

FIGURE 5 is a section on the line 5 5 of FIGURE 1.

FIGURE 6 is a plan view, partially broken away and in section, of one of the band-supporting arms of the present device.

FIGURE 6A is a section on the line 6A-6A of FIG- URE 6.

FIGURE 7 is a plan view partially in section of the other band-supporting arm. Y

FIGURE 8 is a section on the line 8 8 of FIGURE 1.

FIGURE 9 is a fragmentary section on the line 9 9 of FIGURE 8.

FIGURE 10 is an end view of one of the roller assemblies shown on the line lil-10 of FIGURE 6.

FIGURE 11 is an exploded perspective view of the Y block assembly of this device.

FIGURE 12 is a View similar to that of FIGURE l, but 4showing one of the band-supporting arms in forward position, while the other band-supporting arm remains in its retracted position. Y

FIGURE 13 is a view of one of the operating keys of said device, said key being adapted to operate both bandsupporting` arms simultaneously.

FIGURE 14V is a view of another key which is adapted to operate only one of said band-supporting arms.

FIGURE l5 is a View of a third key which is adapted to operate the other of said band-supporting arms.

FIGURE 16 is an end view of the key shown in FIG- URE 13.

FIGURE 17 is a section on the line 17-17 of FIG- URE 15.

FIGURE 18 is a plan view of a portion of a modified band or belt.

FIGURE 19 is a plan View of another portion thereof.

FIGURE 20 is a perspective View of said band or belt when said portions are joined.

FIGURE 21 is a view of a modified roller system adapted to support either version of the band.

FIGURE 22 is al side View thereof on the line 22 22 of FIGURE 21.

FIGURE 23 is an end View on the line 23 23 of FIG- URE 21.

FIGURE 24 is a section on the line 24 24 of FIG- URE 23.

FIGURE 25 is another section taken on the line 25-25 of FIGURE 21.

FIGURE 26 is a fragmentary perspective view of a table top or the like having a beveled edge.

FIGURE 27 is a section on the line 27 27 of FIG- URE 26. v

FIGURE 28 is a view corresponding to that of FIG- URE 21, but showing one of the rollers in tilted position.

FIGURE 29` is a View showing how the present Ydevice may be clamped to a workpiece.

Referring now to the details of the invention as illustrated in the accompanying drawing, it will be observed that the edging applying ,device 10 therein shown ncomprises the fol-lowing elements: a block or lframe 12, a pair of bars I4 and 16 slideably mounted in said block or frame 12, a bracket 1S mounted at the forward end of `bar 174, a bracket 2!) mounted at the forward end of bar V16, a spring-urged telescopic rod 22 mounted in bar 14 in generally axial alignment therewith, a second springurged telescopic rod 22 mounted in bar 14 in generally ,Y axial alignment therewith, a second spring-urged telescopic rod 24 mounted in bar 16 in generally axial alignment therewith, a bracket 26 mounted on telescopic rod `22, another bracket 28 mounted on telescopic rod 24,

a pair of rollers 30 rotatably mounted on bracket 18, anotherpair of rollers 32 rotatably mounted on bracketA 20, a third pair of rollers 34 rotatably mounted on bracket 26, a further pair of rollers 36 rotatably mounted on bracket 28, an endless band 40 mounted on all of said rollers last-above mentioned, and actuating means 42 for operating the device and causing said

bars

14 and 16 or either of them to extend at their forward ends. The actuating means 42 comprises the following elements: gear teeth 44 formed on bar 14 and converting said bar into a rack gear, gear teeth 46 on bar 16 also converting said bar into a rack gear, a gear wheel or pinion 48 which is rotatably mounted on block or frame 12 in toothed engagement with both rack gears, and a key 50 whereby said gear wheel or pinion 4S may be manually rotated in either angular direction.

When the gear wheel or pinion is rotated in the direction of curved arrow 52, bar 14 is caused to move axially forwardly in the direction of arrow 54, and bar 16 is caused to move axially forwardly in the direction of arrow 56.

It will now be noted that the two bars are disposed at right angles to each other, although this is not a critical aspect of the invention. They may be disposed at a somewhat more acute or somewhat more obtuse angle than 90 degrees, and substantially the same result as hereinafter described will follow. In the operation of this device, a strip of edging 60 is placed against the corner 62 of the edge 64 of a table top 66 or like article or component of furniture. That portion of band 40 which is situated between

adjacent rollers

30 and 32 is placed against the edging to press it against the edge of the table top, both leftwardly and rightwardly of corner 62.

It will be noted that the band 40 is caused to bend inwardly between

adjacent rollers

30 and 32 in order to accommodate the corner of the table top. Normally, that portion of the band which is shown to be indented or offset to accommodate the corner of the table top occupies a generally straight line in a plane paralleling the plane in which the axes of all four said rollers are disposed. To compensate for said indenting of the edging, it is necessary to shorten the effective length of

bars

14 and 16, that is, the distance between the rollers on opposite ends of said bars. This is achieved by means of the

telescopic rods

22 and 24 abovementioned, which rods move axially inwardly into said

bars

14 and 16 against the action 'of

springs

70 and 72 therein. When the pressure on said indented portion of the band is relieved, said telescopic portions project outwardly in response to the action of said springs 70 and 72.

Thus far the description of this invention assumes that it is desirable to project both

bars

14 and 16 concurrently and in the direction of

arrows

54 and 56. To accomplish this result, key 50 is used, since said key is provided with an elongated square shank 50a. Gear wheel or pinion 48 is shown to consist of two gear wheel elements 48a and 48b. The teeth on racks or

bars

14 and 16 are offset from each other, since said racks or bars criss-cross in the manner shown in the drawing, and it will be observed that gear wheel or pinion 48a engages teeth 46 of bar 16 while gear wheel or pinion 48b engages teeth 44 of bar 14. These two gear wheels or pinions 48a and 48b operate as a single integral unit when the shank 50a of key 50 is inserted into the square openings 48C and 48d of said gear wheels or pinions.

On the other hand, should it be desired to project arm 14 alone, a second key 80 would be inserted, and it will be observed that this key is provided with a relatively small rectangular shank 80a at its lower end. This shank would engage gear wheel or pinion 48h and, consequently, only rack 14 will be projected. By the same token, yshould it be desired to project bar 16 alone, a third key S2 would be inserted and its square shank 82a would engage only gear wheel or pinion 48a. This would cause bar 16 to project, bar 14 remaining stationary. It is simply a matter of where the actuating shank portion is located and how long it happens to be.` In the case of key 50, the shank is long enough to engage both pins; in the case of key 80 the square shank is located at its lower end and adapted to engage gear wheel or pin 48b; and finally, the square shank 82a on key 82 is so situated that it engages only gear wheel or pinion 48a. Stop means are provided for preventing rotation of the two gear wheels or pinions except when they are being actuated by the keys. This stop means may take the form of a pin or pins 84 which are mounted in block or frame 12 for engagement with said gear wheels or pinions 43a, 48b.

In the use of this device, a clamp may be utilized to attach it to the work. This is illustrated in FIGURE 29 wherein the device is shown to be mounted on a board 100, said board being clamped to a table top by means of one or more clamps 102. A spacer 104 is provided between the supporting board and the table top so that the stripping may be applied thereto. The clamp which is `shown in the drawing is merely illustrative of the many conventional clamping means which may be used to attach the device to the work.

When a beveled table top edge 106 is encountered, it may be found desirable to use the modification of the device which is illustrated in FIGURES 18 to 28. It will there be noted that an endless band 108 is formed out of two

separate bands

110 and 112, respectively. These bands may be provided with any conventional form of locking means such as tabs 114 and T-slots 116. The tabs are caused to engage the T-slots to form the endless beit shown in 'FIGURE 2o.

The difference between

belt portions

110 and 112 may be stated as follows: When spread out in a at plane, belt portion 110 extends along a straight line. When belt portion 112 is laid out flat, its side edges are curved to form a pair of substantially arcuate lines which are concentric with each other. When belt portion 112 is placed against a beveled edge 106, it very readily conforms to the bevel and facilitates application of the stripping thereto.

To insure such conformity to the beveled shape of the table top edge, the criss-crossed racks are provided at their forward ends with roller assemblies 118. As FIG- URES 21-25 and 28 clearly show, one of the rollers 120 of each said roller assembly may be tilted to any desired angular position to conform to the bevel of the table edge. This may be accomplished by the following mounting means: A bracket 122 is provided at the forward end of each of said criss-crossed racks. A roller 124 is journaled therein in conventional manner. Adjustably secured to each side of bracket 122 is a longitudinally slotted bar 126. A pin 128 and a clamp screw 130 are secured to each side of bracket 122 and they project through the slot 132 of corresponding bar 126. Either of the two bars 126 may be moved longitudinally of itself to the extent permitted by its slot and pin 128 and screw 130 extending therethrough. Once it is setto the desired position, clamp screw is tightened and it remains in that position during the operation of the device.

Pivotally secured to one of the slotted bars 126 is a core on which roller 120, actually a sleeve, is rotatably mounted. Pivotally secured to the other slotted bar 126 is a screw element 142 which engages core 140. Said core and said screw element are provided with

annular flanges

144 and 146, respectively, which prevent axial shafting and dislodgement of sleeve 120. It will now be seen that when belt portion 112 rides against tilted roller 120, it will assume the angle of said roller and will conform to the taper of tapered edge 106.

It will be understood that the use of belt 108 is not essential in the operation of this device, since an ordinary endless belt as shown in the first embodiment of this invention is sufiiciently flexible to conform to the angle both of tilted roller 120 and beveled edge 106.

The foregoing is illustrative of preferred forms of this invention, and it will be understood that modifications may be incorporated therein within the broad spirit ofV the invention and the board scope of the claims.

What is Claimed is:

1. A device for applying edging to table tops, desk tops and other furniture tops, said device comprising a frame, clamp means adapted to secure said frame to a table top, a pair of criss-crossed racks on said frame, each of said racks being independently movable longitudinally of itself relative to said frame, forwardly toward the edge of said table top and rearwardly away from said edge, rollers mounted at the forward and back ends of said racks, a relatively iiexible band mounted on saidrollers, said band being engageable, intermediate the rollers at the forward end of said racks, with edging placed against the corner of such table top, pinions rotatably mounted on said frame and independently engaging said racks, and key means engageable with at least one of said pinions'to rotate said pinion and thereby to drive the rack with which it is engaged, whereby said rack may be driven forwardly to press said band against said edging and thereby force the edging against said table top edge.

2. An edging-applying device in accordance with claim 1, wherein the flexible band is endless, and occupies a horizontal plane when mounted on the rollers at the ends. of the criss-crossed racks, all portions of said band being normally disposed in perpendicular relation to said horizontal plane.A l

3. An edging-applying device in accordance with claim 1, wherein each of the criss-crossed racks is provided at its back end with a spring-urged telescopic extension rod, the back end rollers being mounted on said extension rods.

4. An edging-applying device in accordance with claim 1, wherein the flexible band is endless, a portion thereof which is disposed intermediate the rollers at the forward end of the criss-crossed racks being laterally offset from the rest of the band and being thereby adapted to conform to the contours of the corner of a table top having a tapered edge.

5'. An edging-applying device in accordance with clairn 4i, wherein brackets are provided at said forward end of the criss-crossed racks for supporting the rollers at said end, said brackets being adjustable to tilt said last mentioned rollersinto conformity with such tapered edge of a table top.

6. An edging-applying device in accordance with claim l, wherein the criss-crossed racks occupy parallel horizontal planes, one rack-engaging pinion occupying one of the planes, the other rack-engaging pinion occupying the other plane, said rack-engaging pinions being coaxially aligned, each of said pinions having a central key-engaging portion.

An edging-applying device in accordance with claim 6, wherein the key-engaging portion Y of each of said pinions-comprises a rectangular opening, said key being provided with at least one rectangular portion engageable with the rectangular opening of at least one of said pinions, whereby manual rotation of the key causes corresponding rotation of the engaged pinion and driving of the rack with which said pinion is engaged.

8. An edging-applying device in accordance with claim 7, wherein the key is provided with a rectangular portion which engages the rectangular opening of both pinions whereby manual rotation of the key causes a rotation of both pinions and thereby drives both racks.

References Cited by the Examiner UNITED STATES PATENTS 510,476 12/ 93 Gould 74--422 1,878,796 9/32 Morse et al 268-63 2,212,220 8/40 Zweirzina 268-132 2,473,275, 6/49 Brouns 156-481 EARL M. BERGERT, Primary Examiner.

Claims

1. A DEVICE FOR APPLYING EDGING TO TABLE TOPS, DESK TOPS AND OTHER FURNITURE TOPS, SAID DEVICE COMPRISING A FRAME, CLAMP MEANS ADAPTED TO SECURE SAID FRAME TO A TABLE TOP, A PAIR OF CRISS-CROSSED RACKS ON SAID FRAME EACH OF SAID RACKS BEING INDEPENDENTLY MOVALBE LONGITUDINALLY OF ITSELF RELATIVE TO SAID FRAME, FORWARDLY TOWARD THE EDGE OF SAID TABLE TOP AND REARWARDLY AWAY FROM SAID EDGE, ROLLERS MOUNTED AT THE FORWARD AND BACK ENDS OF SAID RACKS, A RELATIVELY FLEXIBLE BAND MOUNTED ON SAID ROLLERS, SAID BAND BEING ENGAGEABLE, INTERMEDIATE THE ROLLERS AT THE FORWARD END OF SAID RACKS, WITH EDGING PLACED AGAINST THE CORNER OF SUCH TABLE TOP, PINIONS ROTATABLY MOUNTED ON SAID FRAME AND INDEPENDENTLY ENGAGING SAID RACK, AND KEY MEANS ENGAGEABLE WITH AT LEAST ONE OF SAID PINIONS TO ROTATE SAID PINION AND THEREBY TO DRIVE THE RACK WITH WHICH IT IS ENGAGED, WHEREBY SAID RACK MAY BE DRIVEN FORWARDLY TO PRESS SAID BAND AGAINST SAID EDGING AND THEREBY FORCE THE EDGING AGAINST SAID TABLE TOP EDGE.