US2771009A - Punching machine - Google Patents

Description

1956 w. E. CARROLL ETAL 2,771,009

PUNCHING MACHINE 4 Sheets-Sheet 1 Filed June 3, 1952 I Inventor:

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Nov. 20, 1956 w. E. CARROLL ETAL 2,771,009

PUNCHING MACHINE 4 Sheets-Shet 2 Filed June 3, 1952 lnve ntor-z u, 0 s MW A 0 n a M r t M L g A "2% MN WM 2 b Nov. 20, 1956 w. E. CARROLL EIAL PUNCHING MACHINE Filed June 5; 1952 4 Sheets-Sheet 4 Inventor- 1/911 in! E. cwk kolt MES M. aaLiS United States PatentO PUNCHING MACHINE Application June 3, 1952, Serial No. 291,444

15 Claims. (Cl. 93'---1) i This invention relates to improvements in paper punching machines, or the like. More particularly, it has to ice 1 l 2 ered in threaded alignment in the machine; in which the tape advancing means comprises a movable jaw to grip the tape therein to unwind it from the roll and advance it to be severed; in which the ends provide a tape holddown jaw to maintain the tape in position during severance and until the movable jaw returns to initial tape gripping position; in which there is a tape wiper or separator member adapted to remove the tape from the hold-down jaw when the same adheres thereto; in which there is a rec'iprocable carriage with a jaw mounted thereon to mi 7 rocate therewith and to grip the tape therebetween to unwind it from the roll and to advance a portion to be do with such a machine comprising means for feeding a web of adhesive tape to the marginal edge of a sheet of paper, and, simultaneously therewith, severing the tape transversely of the web substantially flush with the edge of the sheet, punching coinciding holes through the tape portion being severed, and through the sheet, and adhesively securing the severed portion to the sheet to reinforce the latter around its punched portion; and the provision of such a machine is the principal object of the invention.

Several types of machines, or other devices, for punch ing one or more holes along marginal edges of sheets 'of paper, so that the sheets readily can be fastened in a ring or other type of binder, have been available on the market for along time. In order to reinforce the marginal edges around such holes it has also been customary separately to purchase, and manually to apply, circular re-.

inforcing elements, or grommets, by first wetting the adhesive thereon, and then individually sticking them inposition, often after some difiiculty in properly matching and tape advancing means; and in which the punching and compression means comprises a floating plate having an aperture therein, a fixed punching member adapted to penetrate the base and a reciprocable compression memher also having an aperture therein aligned with the base aperture and also adapted to be penetrated by the fixed punching member. I

'It is also an object of the invention-to provide a shee of, paper having a hole or holes, punched therein adjacent one of its marginal edges, a transparent reinforcing suming and often lacking in accuracy and neatness,but

also is expensive because of the extra cost of the specially made grommets. I

There has been a long felt want in the industry for a device, or machine, which would overcome the foregoing difficulties and disadvantages, and a solution to the prob: lem now has been accomplished by means of the present invention.

It is, therefore, another object of the invention gen-j erally to provide such a machine which will perform such operations that is economic of manufacture as well as in' operation, sturdy, durable and positive in function and which will operate with relative freedom from wear and tear, and other mechanical difiiculties. f

' More specifically, it is an object of the invention to provide such a machine having means for mounting a rolled web of adhesive tape, means to advance the tape a predetermined distance, severing means to sever the end porobvious hereinafter set forth and the scope of the application of which will be indicated in the claims.

For a fuller understanding of the nature and objects of the invention reference should be had to the following detailed description taken in connection with the accompanying drawings, in which:

Fig. 1 is an exploded perspective view illustrating certain structures, in part, of theinternal mechanism 'of 'a preferred embodiment of my invention;

Fig. 2 is a side elevational view of the machine, with parts thereof broken away;

tion of the tape, punching and compression means to receive a sheet of paper and the predeterminedend portion of the tape in overlying relation in order to punch holes through both and to compress the sheet and cut portion of the tape adhesively together, and means adapted to actuate the tape advancing means, and the severing, punching and compression means in order substantially simultaneously to sever the tape portion, punch the same, together with the paper, and adhesively to secure them to each other. 1

Other specific objects of the invention are to provide such a device in which the means for mounting the rolled web of tape comprises a well adapted loosely to receive and hold the same in freely rotatable position to be unwound, with guide means to :maintain the roll in the Well and an unwound portion of the web to be sev- Fig. 3 is a plan view of Fig. 2 with a portion thereof removed;

1 Fig. 4 is a front elevational view of Figs. 2 and 3-with a portion thereof broken away;

Fig. 5 is a vertical transverse sectional view taken along the lines 55 of Fig. 2;

Fig. 6 is a side elevational view, partly in section and with parts broken away, illustrating the mechanism for the initial step of advancing the tape into position to be severed;

Figs. 7 and 8 are views similar to Fig. 6 illustrating the simultaneous action of severing a pre-determined portion of the tape, punching the tape and paper, and compressively and adhesively securing them together;

Fig. 9 is a view similar to Figs. 6, 7 and 8 illustrating the return movement of the mechanism preparatory to a portion of the severing and punching mechanism; and

repeating the operation;

Fig. 10 is a perspective view of a tape advancing'jaw; Fig. 11 is a perspective view, somewhat enlarged, of

Fig. 12 is a plan view of a sheet of paper illustrating a plurality of reinforcing grommets along one marginal edge thereof secured to the underside of the paper with a hole punched through each grommet and through .th overlying portion of the sheet.

Referring now more particularly to the drawings there is indicated generally at 20 (Fig. 2) a well, provided by the rearwardly extending portion 21 of a base 22, and a rear housing 23 hingedly connected at 24 to the main housing 25. This well is adapted loosely to receive therein and to hold a roll of tape 26, preferably a roll of adhesively coated Cellophane tape, in a more or less freely rotatable and floating position to be unwound. That is, the roll is not pivotally mounted on its axis but peripherally confined by the Well and rear housing. A reciprocating finger plate 27 having upstanding side walls 28 carrying a battle or curved finger plate 29 which overlies the top of the roll. The battle 29 and side walls 28 are adapted to maintain the roll 26 and unwound portion 30 of the tape in position as it is threaded through the machine. Therear end of the reciprocating finger plate 27 has downwardly depending members 31 which limit the reciprocating movement thereof. It will be observed (Fig. 1) that the upper surface of the tape contains the coating of adhesive as shown by the stippling.

The means to advance the tape a pre-determined distance with respect to the severing means as it is threaded in alignment of the longitudinal axis of the machine employs the reciprocating finger plate 27 which has an .extension 30 thereon. This extension 32 is mounted slidably to reciprocate in a gib or groove 33 and flush with the upright portions 34 forming the gib or groove on the bed 35 overlying the base 22. The finger plate 27 also is slidably mounted on the remaining rearwardly extending portion 36 of the bed 35.

The extending finger portion 32 is cooperatively associated with a movable jaw 37 (Figs. 1 and The lower forward edge of this jaw is serrated as at 38 in order grippingly to engage the adhesive surface of the tape which is disposed between the jaw 37 and the extension finger 32. The jaw 37 preferably is bifurcated, for example, by means of two extension plates 39 preferably welded thereto at its rearward end. These plates 39 have holes 40 drilled therethrough for the reception of a pivot pin or shaft 41 journaled between the upstanding wills 28 of the reciprocating finger plate 27.

A yoke 42, having depending portion 43 is also provided with a hole to receive the pin 41 and is pivotally mounted between plates 39 so that the yoke overlies the jaw 37. On top of the jaw 37 is secured a cup or socket member 44 for the reception of a compression spring 45, the top of which spring is seated in a socket 46 in the underside of the yoke.

The yoke 42 has a curved forwardly extending portion 47 which is provided with an opening 48 therein and which opening is adapted to receive a pivot pin 49, which pin, when mounted in the opening, extends an appreciable distance laterally of the sides of the extension portion 47 of the yoke 42. Mounted on the extending portions of the pin 49 are right and left eccentrics 50 and 51 having oficenter holes 52 and 53 respectively adapted to receive the extending portions of the pin 49. Each eccentric has a central bore 54 therein for the reception of a longitudinally split bushing 55. The split in the bushing is aligned with a key slot 56 in each eccentric for the reception of a key 57. A manually actuatable handle 58, having a stud 59, provided with a key slot 60 is adapted to be fitted into the bushing when the latter is mounted within the eccentrics 50 and 51 in such a manner that the key slot 60 will also receive the key 57 therein.

The movable jaw 37 is adapted to grip the tape 30 between itself and the finger 32, as aforesaid, therebetween to unwind the same from the roll 26 and to advance it so that a pre-determined portion can be severed when the member 58 is rotated, as will more fully be explained hereinafter.

cooperatively associated with the jaw 37 and finger extension 32, which with their connected parts form a reciprocable carriage, are two (right and left) tape holddown jaws 61 and 62. Each of these hold-down jaws are pivotally mounted at 63 on inner side plates 64 and 65 respectively. These side plates are secured in position by means of suitable. screws passing through openings 66 to secure the same to the bed 35. Each side plate 64 and 65 has a large upper opening 67 which is co-axially aligned with the stud 59 which passes therethrough. When the device is assembled, the stud 59 and handle member 58 are secured in position by means of a screw 68 which passes through a washer 69, the screw entering a threaded opening 70 at the end of the stud 59. An additional hole, or opening 71 about the same size as the hole 67, is located below the latter and approximately centrally .of each frame member 64 and 65. A small pin 72 passes through each opening 71 and is secured in the back of each holddown jaw 61 and 62. A coil spring 73 is hooked over each pin in an annular groove 74; and each spring 73 is similarly hooked underneath a bar 75 that passes below the bed 35 so that each hold-down jaw 61 and 62 normally is pulled downwardly around its pivot point 63 so that its serrated bottom edge 76 is brought into contacting relation'with the upper coated surface of the tape 30. Also secured to each hold-down jaw 61 and 62, on the inside face thereof, is a camming pin 77 (Fig. l), or cam follower.

Referring now once'again to the jaw 37 it will be seen that there is provided on each side thereof an elongated cam 78 which, during actuation of the jaw 37, travels around each camming pin 77 in contacting relation therewith to bring each hold-down jaw 61 and 62 intermittently into operative and inoperative position with respectto the tape 30, as will more fully be explained hereinafter.

Fixedly mounted on the inside of each side frame 64 and 65, between the jaw 37 and each hold-down jaw 61 and 62, are two (right and left) tape wiper or separator members 79 and 80 respectively. The forward bottom edges of each of these members are scalloped as indicated at 81 so that the tape 30, which is inclined to adhere to the hold-down jaws 61 and 62, may be freed therefrom when the latter move upwardly in response to the camming action of the cam 78 on the tape advancing jaw 37. These members are held in position with respect to the side frames 64 and 65 by means of pins 82 passing through openings 83 at opposite ends thereof and into openings 84 in the side frames.

'Severing means adapted to shear a pre-determined end portion of the tape are located forwardly of the machine adjacent the forward end of the bed 35. Such means may comprise relatively movable shearing blades indicated generally at 85 and 86 respectively, the blades being cooperatively associated with the tape advancing means, whereby the tape is sheared immediately upon completion of the advancing movement of the tape to its pre-det ermined position by the tape actuating means. Preferably, the shearing means 85 is fixed and may be a part of the bed 35. However, there is provided a shearing knife 87 fixed in position a short distance below the plane of the advancing finger 32. The blade 87 is secured in position by suitable screws 88. It will be observed that the cutting edge of the blade 87, is so arranged that it tapers inwardly and downwardly toward its center as indicated at 89. This will enable the tape to be sheared transversely inwardly from opposite marginal edges simultaneously until it is completely severed at its center line,

A vertical reciprocating shearing blade or box 90 is provided actively to bring about the shearing action.

This member is mounted against the forward face of a Slide bar 91 mounted between the forward end of the frames 64 and 65 by means of suitable screws passing through openings 92 in the latter and into threaded openings 93 in the member 91. The rectangularly shaped box blade 90 has its cutting edge at the bottom of its rear face as indicated at 94, the cutting edge being in vertical alignment with the inwardly tapered cutting edge 89 of the fixed blade 87. This movable cutting member is secured in position against the face 95 of the member 91 by means of a screw 96 passing through an elongated washer 97 disposed against the back wall thereof. This screw also passes through an elongated slot 98 and into a threaded opening 99 in the member 91. It will be observed that the top of the member 91 is slotted as indicated at 100 and that above the opening 98 in the movable blade 90 is another elongated aperture 101 in alignment with slot 100. The forward end of the yoke 47 is arranged to pass through the slot 100 and into the slot 101 in order to actuate the reciprocable knife member, or box blade 90.

The punching and compression means is disposed in advance of the shearing members 85 and 86. This means is adapted to receive a sheet of paper in overlying relation with respect to the pre-determined advancing end portion of the tape to be severed and is so arranged that it will punch holes through the sheet and end portion of the tape, and simultaneously therewith to compress the cut tape and paper into adhesively secured relation. This means comprises a fixed block 102, preferably integral with the bed 35, mounted above springs 103 encircling studs or guide members 104 located in the base 22, which members 104 penetrate the block 102 by passing through vertical holes provided therefor.

Secured to the front of the block 102, by means of suitable screws 105, is an angularly bent blade 106 which extends rearwardly of the top of the block 102 and in spaced relation therefrom, to terminate adjacent the fixed shearing member 87. Secured to the top of the angular blade 106 by means of rivets 107 is another blade 108 having upwardly struck, oppositely disposed, fingers 109. A paper and tape punch 110, is fixedly secured within the block 102 and is adapted to penetrate a hole 111 in the members 106 and 108 in order to effect the punching action by substantially vertical downward depression of these members in response to the downward movement of the rectangularly shaped box blade 86 which, in addition to being provided with a tape cutting edge constitutes a portion of the compression means, namely, the compression plunger, actuated by the extension 47 of the yoke 42 in response to rotation of the actuating handle 58.

The entire mechanism above described, with the exception of the actuating handle 58 is enclosed in the split main housing 25 secured to the base 22 by means of suitable screws 112. The bed 35 is held in its illustrated position by means of similar screws 113 passing through the housing and into the forward portion of the block 102 and the rear of the bed 36 respecitvely. The forward end of the housing has an opening indicated generally at 114 (Fig, 2) so that a sheet of paper 115, indicated in dotted lines (Fig. 7) may be inserted therebetween.

In operation, the freely floating roll of tape 26 which has previously been threaded through the machine to the edge of the knife 89, is now in position to be advanced. A sheet of paper 115 is inserted in the opening 114 where it is held in raised position by the fingers 109. The handle 58 is grasped and rotated whereupon the serrated teeth on the jaw 37 grip the tape 30 between the jaw 3'7 and the extension finger 32 underneath the tape, As the handle continues its rotation the entire carriage whichincludes the finger 32 and finger plate 27 advances the tape a pre-determined distance underneath the sheet of paper 115 as illustrated in Figs. 6 and 7. It will be observed that the cams 78 pass underneath the camming pins '77 and in front thereof. Continued rotation of the handle, in the meantime, brings the eccentrics into play and the extension 47 of the yoke 42 depresses the vertically reciprocable shearing element 86. This last named member which is also the plunger, passes downwardly between the struck-up fingers 109, compressing the paper sheet therebetween and into initial contacting relation with the tape. At this moment the simultaneous action of severing the tape, punching the same and the paper, and compressing the paper and tape into fixed adhesive relation, occurs. The blades 106 and 108 are pushed downwardly together against the spring loaded pins 104 (Fig. 8). The bottom of the member 86 has an opening therein commensurate with the size of the opening 111 for the plunger 110. The plunger penetrates both tape and paper while the knife edge 94 shears the tape along the fixed edge 89 and the plunger passes upwardly through the bottom of the member 86 to punch out a circular piece of tape and paper. The paper and tape having been brought into compressed relation remains adhesively affixed together as seen in Fig, 12. As thehandle 58 is rotated back to its starting position, the hold-down jaws 61 and 62 are brought into compressed relation with the top of the tape, holding the same to the top of the bed 30- by virtue of the fact that the camming elements 78 ride over the tops of the pins 77,

thereby holding the tape in position for being advanced.

a second time a pre-determined distance. In repeating the operation the hold-down members must release the tape for further advance movement and the operation is repeated as above described, the cams 78 passing underneath the pins 77 thereby raising the hold-down jaws 61 and 62. Should there be a tendency for the tape to adhere to the hold-down jaws, the tape will be brought into contact with the scalloped edges 81 of the wiper or separator members 79 and so that the forward end of the tape will fall downwardly in position against the bed 30 so that it properly can be advanced again to be severed.

It should be understood that it is within the contemplation of the invention to operate the machine by mechanical or electrical means or other than the manual means herein described for illustrative purposes. It should also be understood that, while a single severing, compressing and punching mechanism has been disclosed, it is intended that one or a plurality of similar means can readily be connected to operate in combination in a tandem arrangement.

It will thus be seen that the objects hereinbefore set forth may readily and efficiently be attained and since certain changes may be made in the above construction and different embodiments of the invention could be made without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

It is also to be understood that the following claims are intended to cover all of the generic and specific features of the invention herein described, and all state ments of the scope of the invention which, as a matter of language, might be said to fall therebetween.

Having described our invention what we claim as new and desire to secure by Letters Patent is:

1. In a machine of the character described, comprisin means mounting a rolled web of adhesive tape; means to advance said tape a predetermined distance with respect to a severing means; said tape advancing means comprising a movable jaw adapted to grip said tape therebetween to unwind the same from said roll and advance the pre-determined portion to be severed, a tape holddown jaw adapted to hold said advanced tape in position during severance and until said movable jaw returns to initial tape gripping position, and a tape wiper member adapted to remove said tape from said hold-down jaw when the same adheres thereto; severing means adapted to sever a predetermined end portion of said tape; punching and compression means adapted to receive a sheet of paper and the predetermined end portion of said tape in overlying relation, and to punch holes through said sheet and end portion of said tape, and to compress the same into adhesively fixed relation; and means adapted to actuate said tape advancing means. and said severing, punching and compression means, in order substantially simultaneously to sever said tape portion, punch the same, together with said paper, and adhesively to secure them to each other.

2. In a machine as defined in claim 1, and further char acterized in that said means for mounting the rolled web of adhesive tape, comprises a well, and a housing therefore, adapted loosely to receive and to hold said roll in rotatable but freely suspended position to be 11n wound; and guide means to maintain the roll in freely suspended position in the well by the unwound portion, but with the unwound portion of the web to be severed guidingly positioned in threaded alignment in the machine.

3. In a device according to claim 2, and wherein said guide means includes a curved finger plate overlying said roll and a fiat reciprocating finger plate, having upstanding side walls, through which said unwound web portion guidingly is positioned in threaded alignment with said machine.

4. In a machine as defined in claim 1, and further characterized in that the jaw of said tape advancing means is provided with a plurality of aligned serrations along its lower edge to grip said tape to unwind the same from said roll and advance the predetermined portion to be severed.

5. In a machine as defined in claim 1, and funther characterized in that the jaw of said tape advancing means is provided with a plurality of serrations along its lower edge to grip said tape to unwind the same from said roll and advance the predetermined portion to be severed; and a tape hold-down jaw on each side of said tape advancing jaw cooperatively associated therewith to hold said advanced tape in position during severance and until said movable jaw returns to initial tape gripping position.

6. In a machine as defined in claim 1, and further characterized in that the jaw of said tape advancing means is provided with a reciprocable carriage, and said jaw being pivotally mounted therein to reciprocate with said carriage, whereby to grip said tape therebetween to unwind the same from said roll and to advance the predetermined portion to be severed; and means to actuate said carriage.

7. In a machine as defined in claim 1, and further characterized in that said tape advancing means comprises a reciprocable carriage, with said jaw mounted therein to reciprocate with said carriage, whereby to grip said tape therebetween to unwind the same from said roll and to advance the predetermined portion to be severed; and means to actuate said carriage; a hold-down jaw pivotally mounted at one end adjacent said movable jaw; and means, including a cam on said movable jaw and a cam follower on said hold-down jaw cooperatively connecting and associating said jaws, whereby said holddown jaw becomes inoperative as said tape is advanced by said movable jaw, and operative as said movable jaw is retracted by said carriage actuating means.

8. In a device according to claim 7, and wherein said hold-down jaw is mounted to oscillate on a fixed side frame; and a tape separator member fixedly mounted on said frame, adjacent said hold-down jaw, to separate said tape when the same adheres thereto.

9. In a machine as defined in claim 1, and further characterized in that said severing means comprises relatively movable shearing blades, a yoke connecting said blades, cooperatively with said tape advancing means, whereby said tape is sheared immediately upon completion of the advance movement of said tape to its predetermined position by said actuating means.

10. In amachine as defined in claim 1, and further characterized in that said severing means comprises a fixed shearing bar and a reciprocating shearing box having a cutting edge, means connecting said box and said tape advancing means and adapted to reciprocate said box upon operation of said actuating means.

11. In a device according to claim 10, and wherein said shearing bar is substantially horizontally disposed and provided with tapering cutting edges converging to ward the center thereof, thereby to shear said tape trans versely and progressively inwardly from opposite sides towards and through the center thereof.

12. In a machine as defined in claim 1, and further characterized in that said severing means comprises a horizontally disposed shearing bar having downwardly and inwardly tapering cutting edges, a vertically disposed guideway, and a reciprocable shearing member, having a horizontally disposed cutting edge, slidably mounted in face-to-face against said guide-way, and adapted to shear said tape transversely and progressively from opposite side edges inwardly and through the center thereof.

13. In a machine as deined in claim 1, and further characterized in that said punching and compression means comprises a relatively movable springdoaded base member and punch adjacent said shearing means, said punch being substantially normal to the approximate center line of travel of said tape, and said base being adapted to receive a sheet of paper and said predetermined portion of tape in overlying relation, and compression means adapted relatively to actuate said base and punch to perforate said tape and paper adhesively to compress the same together.

14. In a machine as defined in claim 1, and further characterized in that said punching and compression means comprises a floating spring-loaded base having an aperture therein, a fixed punching member adapted to penetrate said base, and a reciprocable compression member also having an aperture therein that is in alignment with the aperture in said base and likewise adapted to be penetrated by said fixed punching member.

15. In a device according to claim 14, and wherein said base is mounted to float on compression springs, said base having resilient spacing fingers overlying said base in spaced-apart relation and adapted to hold a sheet of paper to be punched in upraised position from said punching member to receive a pre-determined portion of said tape to be severed between the underside of said sheet and said punching member so that said sheet and tape simultaneously can be punched and adhesively secured together by said compression member.

References Cited in the file of this patent UNITED STATES PATENTS 1,826,557 Lowe Oct. 6, 1931 1,879,233 Henry Sept. 27, 1932 2,293,246 Fay Aug. 18, 1942 2,353,232 Greene July 11, 1944 2,437,022 Fritzinger Mar. 2, 1948 2,441,821 Kendall May 18, 1948 2,512,822 Bars'n June 27, 1950 2,541,444 Storey Feb. 13, 1951 2,557,831 Lucenti June 19, 1951 FOREIGN PATENTS 435,051 Great Britain Sept. 13, 1935

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