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Publication numberUS3759435 A
Publication typeGrant
Publication dateSep 18, 1973
Filing dateAug 5, 1971
Priority dateAug 5, 1971
Also published asCA969399A1, DE2238517A1, DE2238517C2, DE2266029A1, DE2266029C2
Publication numberUS 3759435 A, US 3759435A, US-A-3759435, US3759435 A, US3759435A
InventorsBone Arnold Roberts
Original AssigneeDennison Mfg Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Apparatus for dispensing fasteners
US 3759435 A
Abstract
Apparatus for dispensing fastener attachment members of the type having a filament with heads on both ends, the device including a casing, a needle projecting from the casing, the needle having a bore through which the fastener attachment member is adapted to be dispensed, a plunger or ejector adapted to force one head of the attachment member through the needle bore, the plunger advanced by the combination of a gear and sliding rack, the sliding rack in the form of a thin plate and in which the attachment members are fed before the needle and in front of the ejector by an indexing wheel advanced by a feed pawl with a slotted hole which allows it to rock in and out of engagement with the indexing wheel as it is moved back and forth.
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Description  (OCR text may contain errors)

United States Patent [191 Bone [ Sept. 18, 1973 APPARATUS FOR DISPENSING FASTENERS Primary Examiner--Granville Y. Custer, Jr. [75] inventor: Arnold R. Bone, Needham, Mass. Attorney-Sew?! Broustem et [73] Assignee: Dennison Manufacturing Company,

Framingham, Mass. [57] ABSTRACT Apparatus for dispensing fastener attachment members [22] 1971 of the type having a filament with heads on both ends, [2]] Appl. No.: 169,413 the device including a casing, a needle projecting from the casing, the needle having a bore through which the fastener attachment member is adapted to be dis- [gf] (g1. 227/6B75 pensed a plunger ejector adapted to force one head 96 137 of the attachment member through the needle bore, the 1 1e can plunger advanced by the combination of a gear and sliding rack, the sliding rack in the form of a thin plate [56] References C'ted and in which the attachment members are fed before UNITED STATES PATENTS the needle and in front of the ejector by an indexing 3,185,367 /1965 Rieger et a1. 227/95 wheel advanced by a feed pawl with a slottedhole 3,650,451 1972 Weilafld et 227/57 which allows it to rock in and out of engagement with 3-650452 3/1972 Fmlfe 227/67 the indexing wheel as it is moved back and forth. 3,652,004 3/1972 Lozio 227/67 Claims, 33 Drawing Figures d 40a b -+14 46 I so 4 62 4o 6' 4-4-6 H 4.2;, e 8M? 0 r w wi r Lj-T, j "12a i A 1 L 1 ,98

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1 APPARATUS FOR DISPENSING FASTENERS BACKGROUND OF THE INVENTION This invention is directed to a new and improved apparatus for dispensing and inserting fastener attachment members having a filament and heads on either end.

This invention finds particular utility in applications such as anchoring tags to articles of apparel, coupling layers of material together, coupling buttons or the like to coats and other articles of clothing and in many other applications which require that two or more layers of material be held together.

The present invention is in particular an improvement over other devices such as shown in US. Pat. No. 3,103,666. In addition, U.S. Pats. Nos. 3,470,834 and 3,494,004 may also be referred to for a description of the state of the art. 7

For many years, a device such as shown in US. Pat. No. 3,103,666 has been sold and has been used quite widely. Although such devices are quite acceptable and reliable, there has developed a need for a new and improved device, or apparatus which wouldbe even more reliable and durable.

SUMMARY OF THE INVENTION In particular, this invention provides an apparatus which includes a new and improved feed mechanism which maintains a grip on the carrier supporting the fastener attachment member until the attachment member has been delivered into the needle bore of the needle of the apparatus. This feature insures against misfeeds and jams and thus provides morereliable operation.

Still another improvement in this apparatus is that it is constructed so that a second feed of an attachment member is prevented from occurring until the previous operation has been fully completed. This too prevents jamming of the apparatus.

The apparatus of this invention also includes a new and improved rack or slide and drive arrangement for moving the ejector to force the attachment member through the needle bore. The rack is constructed so that there are no pockets to collector retain lint or other foreign materials which could ultimately lead to the apparatus malfunctioning. 7 Other uses and advantages of. the invention will in part be obvious and will in part also be apparent from the description which follows. The invention accordingly comprises the features of construction, combinations of elements, and arrangements of parts which will be exemplified in the construction hereinafter described.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of the apparatus according to the invention showing one of the handles of the apparatus in two positions;

FIG. 2 is a view of the opposite side of the apparatus according to the invention;

FIG. 3 is a top view of a portion of the apparatus;

FIG. 4 is a side view of the apparatus with parts broken away and removed to show the operating mechanism of the apparatus;

FIG. 5 is a sectional view taken along line 5-5 of FIG. 4; 1

FIG. 6 is a sectional view taken along line 6-6 of FIG. 4;

FIG. 7 is a sectional view taken along line 7-7 of FIG. 4;

FIG. 8 is a top view of a slidable slide or rack adapted to be moved back and forth by the movement of the handle according to the invention;

FIG. 9 is a side view of the slide of FIG. 8;

FIG. 10 is a sectional view taken along line 10-10 of FIG. 9;

FIG. 11 is a side view of a slidable bar or link according to the invention which is adapted to be moved back and forth by the plate as shown in FIGS. 8 and 9;

FIG. 12 is a top view of the bar shown in FIG. 11;

FIG. 13 is a sectional view taken along line 1313 of FIG. 4;

FIG. 14 is a sectional viewtaken along line 14-'-14 of FIG. 4;

FIG. 15 isan enlarged side view of the indexing or feed mechanism according to the invention;

FIG. 16 is a side view of the feed pawl shown in FIG. 15;

FIG. 17 is a view of the plate carrying a detent shown in FIG. 15; g

FIG. 18 is a sectional view taken along line 18-l8 of FIG. 15;

FIG. 19 is a sectional view takenalong line 19-j-19 of FIG. 15; FIGS. 20-22 illustrates the operation of the feed mechanism of the invention;

FIG. 23 illustrates in a front view the member for permitting the indexing wheel shown in FIG. 4 to free wheel;

FIG. 24 is a sectional view taken along line 24-24 of FIG. 23; v

FIG. 25 is a back view of the member shown inFIG. 23;

FIG. 26 is a front view of a fastener attachment member supported by a carrier therefore;

FIG. 27 illustrates in a side view :a number of fastener attachment members supported by a carrier therefore;

FIGS. 28-32 illustrates in side view, top view and bottom with parts broken away, and end view respec tively of a needle suitable for use in this invention; and

FIG. 33 illustrates another needle construction suitable for use in this invention.

DESCRIPTION OF THE PREFERRED EMBODIMENT In FIGS. 26 and 27 there is illustrated fastener attachment members suitable for being dispensed by the apparatus of this invention. Attachment members are shown at 30 and include a filament 31 and heads 32 and 33. (See the aforementioned patents for further details). A carrier 34 with connectingmembers 35 is provided for coupling the attachment members 30 to the carrier. When the attachment members 30 are dispensed through the needle, they are separated from the carrier by cutting the connecting member as will be disclosed hereafter.

Reference should now be had to FIGS. 1-33 for a brief description of the overall apparatusof the invention. The apparatus is shown at 38 and comprises an outer casing or body 40 comprising two halves 41a and 41b and a handle 42 pivotly coupled thereto by a coupling means 43. The body includes anose portion 40a in which there is formed guides 40b,40c and 40d for the passage of the fastener attachment members, carrier and coupling members into the apparatus and then for the exiting of carrier and coupling members out of the apparatus after the fastener attachment members have been dispensed. 1

In the nose 40a, there is mounted a needle 45 having an elongated slot 45a for the passage of a fastener attachment head 32 therethrough while the filament 31 between heads projects through the slot 45a. The needle includes a rear cutting edge 45b for cutting the coupling members 35 as well as a second slot 45c for permitting the heads 34 of the fastener attachment members to be fed into the apparatus.

The construction of the preferred needles for use in the apparatus are more fully shown in FIGS. 28-33 and will be described later herein.

The needle 45 is locked in place in the nose 41a by a locking pin 46 which includes a handle 46a and a slot therein (not shown) to permit the needle 45 mounting portion 45f to be inserted into a bore 47 provided in the nose 40a.

In order to force or feed fastener attachment members into the needle slot 45a, the handle 42 is attached by a pivotly connected member 48 to gear means comprising a pair of gear segments 49 and 50, each having gear teeth 49a and 50a along the top surface thereof. The member 48 is pivotly connected at 51 to the gear segments as shown in FIG. 6. The gear segments 49 and 50 are in turn pivotly coupled to the body 40 of the apparatus as also shown more particularly in FIG. 6. At .60 there is provided a slide (see in particular FIGS. 4,6,7 and 8-10) which is positioned to slide back and forth in the body having guide slots 41d and 41a formed therein in the body halves 41a and 41b respectively.

The slide 60 has formed therein a plurality of holes 60a shaped to receive the gear teeth 49a and 50a. The holes extend from the bottom surface 60b to the top surface 600 and are formed in two rows as shown to receive the gear teeth of the gear segments. In this manner lint or other foreign matter is prevented from clogging the combined operation of the slide and gear segments since the lint will be pushed out of the holes 60a by the gear teeth. As the gear segments pivot back and forth the slide v60 moves forward and rearward.

The slide 60 also includes a hole 60d and a cavity 60e which are constructed to receive an ejector or plunger 61 havingan L shaped end 61a (see FIG. 4). The ejector end 61a is supported by the slide for movement therewith to permit the ejector to move back and forth to expel fastener attachment members through the needle.

The ejector 61 is supported at its forward end by a guide member 62 (see FIG. 4 and FIG. 13) and a separator or cover plate 90 held between the body halves (see FIGS. 13, 14 and 17).

The rotation of the handle 42 causes the gear segments (see FIG. 4) to rotate counterclockwise to move the ejector in a timed manner forward to force a head 32 of the fastener attachment member 30 through the needle to dispense it therefrom. As the ejector moves forward it causes the coupling member 35 to be severed by the cutting edge 45b of the needle. In order to return the ejector rearward again for the next sequence of operations to expel the next one of a plurality of fastener attachmentmembers, there is provided a resilient return means 70 comprising a cavity 71 formed in the body for the movement of a telescoping member 72 therein. The telescoping member 72 is pivotly coupled to the gear segments 49 and 50 at 73 (see FIGS. 4 and 6) to rotate the cam segments clockwise by the action of resilient biasing means such as a spring 74 positioned in the cavity 71. Thus after the handle 42 is rotated or closed towards the body and then released, the return means will cause the handle to move away from the body to the extended position shown in FIG. 4.

The apparatus also includes an indexing mechanism for positioning fastener attachment members one at a time at the rear of the needle in order to be dispensed by the ejector therethrough. The indexing mechanism 80 comprises an indexing wheel or indexing gear 81 supported for rotation by a shaft 82 coupled thereto which in turn is supported by a bore 83 in the body (see FIGS., 4, l4 and 15).

The indexing gear is positioned in a space between the cover 90 and a shelf41c (see FIGS. 14 and 15) provided in body half 41b. Clearence exists between the gear 81 and the cover 90 and shelf 41c so that the wheel can rotate freely.

The gear 81 has a plurality of teeth 81a mounted along the circumference thereof-which are adapted to engage the coupling members 35 to move the carrier 34' and the fastener attachment members through the apparatus. The indexing gear is rotated counterclockwise as shown in FIGS. 4 and 15 by the provision of a pawl 84 which is constructed with a slotted pivot hole 84a supported by support means such as the shaft 82 coupled to the indexing gear 81. The pawl 84 is adapted to rock back and forth over the shaft 82 as the result of the movement of drive means such as a link 85 which is pivotly coupled thereto at 86. The pawl preferably includes a pusher such as a hook-like end 84b preferably having a pointed tip 84c to engage one-tooth at a time of the indexing gear to rotate it (see FIGS. 4 and 16).

The pawl end 84b is preferably provided with a bend at 84d so that a portion of the pawl will lie against the cover (see FIG. 18) thus providing a space, or clearance between the pawl and the wheel to provide free movement of the slotted portion of the pawl so the pawl is rocked back and forth. The tip 840 of the pawl also extends above the wheel teeth 81a as shown in F IG. 15. The pawl thus preferably has a portion that is in a parallel plane with the wheel and has another portion which lies within the plane of the wheel. The pawl is held in place by a resiliently biased member 87 which is positioned within a cavity 88 and urged toward the pawl by a resilient biasing means such as a spring 89 (see FIG. 14).

The member 87 urges the pawl 87 against the cover- 90 to frictionally hold the hook-end portion 84b against the cover (see FIG. 18) as the pawl is rocked back and forth on the shaft. 4

The slot 840 has parallel upper and lower walls 840a which are angularly disposed with respect to point 84c so that when the pawl is rocked in one direction to the left in FIG. 4, point 84c is cammed out of engagement with the indexing wheel and when rocked in an opposite direction point 84c is cammed into engagement with the indexing wheel. Thus there exists an acute angle a between the parallel walls 84aa and point 84c as shown to effect the above mentioned carnming movement Pawl portion 84b is frictionally held against cover 90 by plunger 87 and spring 88 (see FIG. 18) so that when the opposite end of pawl 84 is moved by link 85 the first action that takes place is to move slotted portion 84a to the end of its travel. Because the sides of the slot are angled with respect to the tip of the pawl 84c (see FIG. 16) movement in one direction causes tip 840 to cam out of engagement with gear 81 (see FIG. 2b) and movement in the other direction causes tip 84c to cam into engagement with the gear 81. Further movement of link 85 in the direction which caused engagement will then cause rotation of the gear (see FIG. 211)..

In order to prevent the wheel from rotating as the pawl is rocked back and forth for indexing of the wheel, there is provided on cover member 90 (see FIGS. 15, 17 and 19) a resilient member 91 extending therefrom which has a projection or detent 91a.

The detent 91a is adapted to be positioned in the space 92 between the teeth 81a (see FIG 19) to prevent the wheel from rotating. The detent 91a is adapted to slide over the side of the teeth 810 when sufficient force is applied to rotate the wheel, as for example by the action of the pawl 84. Thus the detent 91a acts as a stop which can be overriden by the forceable movement of the wheel 81. The provision of the detent also provides positive control of the carrier for the fastener attachment members.

The drive means to rock the pawl back and forth comprises the link 85 which is mounted in the body 40 and is supported for slidable movement (see FIGS. 7,

11, 12 and 20-22).

The link 85 includes a cutout 85a having stop means 85b at either end of the cutout 85a. The stop means are adapted to engage a projection 60f extending downwardly from the slide 60 (see FIGS. 8, 9 and 20-22). Thus as the slide 61) moves back and forth, the link 85 will be moved therewith to cause the link to slide back and forth to rock the pawl back and forth to index the indexing gear. The link 85 is supported at its rearward end by a member 95 positioned in a cavity 96 (see FIGS. 4 and '7) formed in the body and which is resiliently biased against the link 85 by a spring 97. The upward movement of the link 85 is restricted by a projection 98 extending from the body (see FIGS. 4 and 7), and the sideway movement of the link 85 in one direction is restricted by a pin 99 coupled to the body (see FIG. 7). The projection 98 also acts as a rear stop for stop 85b.

The link 85 also includes a projection 85c extending sideways as shown in FIGS. 11 and 12. The projection is coupled to a release control member 100 (see FIGS. 2345, and FIG. 1) having a bore 100a into which the projection 850 extends and is held thereby. The member 100 includes a finger projection100b which extends through a window 101 formed in the body (see FIG. 1).

The downward and sideways movement (to the left of FIG. 22) of the projection 1001: will cause as shown in FIG. 22 the link 85, to pull the pawl 84 away from the teeth of the indexing gear 81 and thus permit a carrier 34 with fastener attachment members coupled thereto to be pulled out therefrom by rotating the gear 81 while over-riding the action of the detent 91a.

Briefly, the operation of the apparatus of the invention is as follows: l fastener attachment members and a carrier therefore are fed into the apparatus by operating the release control finger while inserting the carrier with the fastener attachment members coupled thereto through guides in the nose; (2) the handle 42 is then closed upon the body to move the slide 60 to the left as shown in FIG. 20 to cause the ejector 61 to force a fastener attachment head through the needle while at the same time causing the coupling member to be severed by the needle cutting edge 45b; (3) the movement of the link to the left also rocks the pawl 84 to the right as shown in FIG. 20; (4) when the handle 42 is released, the resiliently biased member 72 moves towards the right to cause the slide 60 to move rearward and thus at the last portion of its travel moves link to the right of FIG. 21 (also see FIG. 4); (5) this then causes the ejector to be retracted from the needle and further causes the pawl 84 to be rocked forward to rotate the indexing gear counterclockwise to position the next fastener attachment member into position to be dispensed from the needle.

In FIGS. 28-31 there is shown the preferred con struction of the needle 45 shown in FIG. 4. The needle comprises two parts which are mechanically locked together, one part being shown at 45e and the mounting portion being shown at 45f. The mounting portion preferably isconstructed of a hard or rigid plastic while the part 45c is preferably constructed of metal. The needle includes the slot 45a, the rear cutting edge 45b, the second slot 450 as heretofore described. The rear cutting edge is preferably shaped as a V with the bottom of the V having a small radius of curvature tofacilitate cutting of materials such as polyurethane.

In FIG. 33 there is shown a slightly different needle construction. This needle is preferably one piece metal and has the slots and cutting edge as heretofore described. For further reference to the construction of preferred needles useful in the practice of this invention reference may be had to US. Patent application of the same inventor of this application entitled Fastener Attachment System Needle Constructions filed in the US. Patent Office on June 30, 1971 now copending as US. Ser. No. 158,438.

I claim: I I

1. In an apparatus for dispensing fastener attachment members one at a time, said fastener attachments members being coupled to a carrier by a coupling member and which includes a body, a hollow needle having an elongated slot along one side supported by said body and extending therefrom, an ejector supported by the body for driving a head of the fastener attachment member through said needle with a filament of the fastener attachment member coupled to the head projecting through said slot, and an indexing wheel having a plurality of teeth for engaging the coupling members to feed one fastener member at a time into position to be fed through said needle, the improvement comprising an indexing pawl for engaging the teeth of the wheel, one at a time, to advance the wheel to position fastener attachment members into position to be fed through said needle, said pawl having a slotted pivot hole and a tip for engaging the teeth of the wheel, first means supported by the body and passing through the slotted pivot hole to permit the pawl to rock back and forth thereon, and drive means coupled to the pawl for rocking the pawl back and forth to cause said tip to engage said teeth one at a time to advance the indexing wheel.

2. In an apparatus'according to claim 1 in which said first means comprises a shaft coupled to said indexing wheel which supports it for rotation. v

3. In an apparatus according to claim 2 in which said pawl is provided with a bend so that a portion of the pawl lies next to the indexing wheel and another portion of the pawl extends above said indexing wheel in order to engage the teeth of said wheel.

4. In an apparatus according to claim 3 in which first resilient biasing means is provided to bias said pawl against a cover, said resilient biasing means supported by said body.

5. In an apparatus according to claim 1 in which a detent member is supported by said apparatus adjacent said teeth of said wheel, said detent member being positioned to ride over the side of said teeth and fit within the space between two teeth to prevent the wheel from rotating, and in which said detent member is resiliently biased so that the wheel may be rotated when sufficient force is applied thereto to cause the detent member to be forced out of the space between two teeth and ride over the side surface of one of the teeth and position itself in the next space between the teeth as the wheel is rotated.

6. In an apparatus according to claim 5 in which said first means comprises a shaft coupled to said indexing wheel which supports it for rotation.

7. In an apparatus according to claim 6 in which said pawl is provided with a bend so that a portion of the pawl lies next to the indexing wheel and another portion of the pawl extends above the indexing wheel in order to engage the teeth of said wheel.

8. In an apparatus according to claim 4 in which a detent member is supported by said apparatus adjacent said teeth of said wheel, said detent member being positioned to ride over the side of said teeth and fit within the space between two teeth to prevent the wheel from rotating, and in which said detent member is resiliently biased so that the wheel may be rotated when sufficient force is applied thereto to cause the detent member to be forced out of the space between the teeth and ride over the side surface of one of the teeth and position itself in the next space between the teeth as the wheel is rotated.

9. An indexing mechanism comprising a wheel adapted to rotate and having a plurality of teeth positioned about the circumference thereof, a pawl having a hook-like end for engaging the teeth of the wheel one at a time to rotate the wheel in one direction, the pawl having a slotted pivot hole, support means positioned in the pivot hole for supporting the pawl and at the same time permitting the pawl to rock back and forth thereon, and means coupled to the pawl to move the wheel increments as the pawl rocks back and forth on the support means.

10. An indexing mechanism according to claim 9 in which the support means comprises a shaft coupled to the wheel, said shaft supporting said wheel for rotation.

11. An indexing mechanism according to claim 10 in which a detent is provided which is positionable in the space between two teeth to prevent rotation of the teeth, said detent being resiliently biased towards said teeth.

12. An indexing mechanism according to claim 11 in which the hook-like end of thepawl has a bend in order to position the hook-like end over the teeth, and in which resilient biasing means is provided to urge a portion of said pawl against a cover against which it frictionally engages.

13. In an apparatus for dispensing fastener attachment members one at a time, said fastener attachment members being coupled to a carrier by a coupling member, the apparatus including a body, a hollow needle having an elongated slot along one side supported by said body and extending therefrom, an ejector supported by the body for driving a head of the fastener attachment member through said needle with a filament of the fastener attachment member coupled to the head projecting through said slot, and indexing means for positioning one at a time fastener attachment members into position to be ejected through said needle, the improvement comprising a slide to which the ejector is coupled for movement therewith, the slide having a plurality of holes therethrough from the bottom surface to the top surface and, each hole constructed such that the walls of the slide surrounding the holes are adapted to receive gear teeth, and drive means for moving the slide back and forth, said drive means including gear means having gear teeth positionable in the holes of the slide.

14. In an apparatus according to claim 13 in which said drive means comprises a handle pivotly coupled to said body, and in which the gear means comprises gear segment means pivotly coupled to said body and to said handle and return means supported by said body and pivotly coupled to said gear segment means, and resilient biasing means supported by said body and coupled to said return means for urging said gear segment means in one direction.

15. In an apparatus according to claim 14 in which said gear segment means comprises two gear segments each having gear teeth and in which said slide includes two rows of holes, each row of holes constructed to receive the gear teeth of said segments.

16. In an apparatus according to claim 15 in which said ejector comprises an L shaped portion which extends through a hole in said slide from the bottom thereof and in which a portion thereof fits in a groove provided in the top surface of the slide.

17. In an apparatus according to claim 15 in which said indexing means includes a link in which said slide includes a projection for moving the link backward and forward in which said link includes a cutout having stops on either end thereof, and wherein the projection extends into the cutout and is adapted to move the link back and forth by engaging the stops to index the indexing mechanism.

18. In an apparatus according to claim 17 including means for rotating the link away from said slide to 'release the carrier for supporting the fastener attachment members. g

19. In an apparatus according to claim 18 in which means is provided for resiliently urging said link in one direction.

20. An apparatus for dispensing fastener attachment members one at a time, said fastener attachment members being coupled to a carrier by a coupling member, said apparatus comprising a body, a needle supported in the nose of the body, and extending therefrom, said needle having an elongated slot along one side thereof for the passage of onehead of the fastener attachment members with a filament between the heads of the fastener attachment members projecting through said slot, guide means in the nose of the body for permitting fastener attachment members to be fed into the apparatus at the rear of the needle on the carrier therefore, a handle pivotly coupled to said body, gear means pivotly coupled to said body and to said handle and positioned on said body to be rotated by said handle as said handle is rotated towards said body, a slide positioned in said body and having means for engaging the gear means in order to be moved back and forth thereby, the rotation of the handle towards said body causing the handle to rotate the gear means to move the slide forward, return means for rotating said handle and said gear means to move the slide backward and the handle away from the body, an ejector supported by said slide and movable towards said needle to force a fastener attachment member head therethrough upon rotation of the handle towards said body, said ejector movable away from said needle upon rotation of said handle away from said body by said return means, a link slidably supported within said body, means coupled to said slide for moving said link backward and forward as a result of slide movement, said link pivotly coupled to a feed pawl, said feed pawl positioned to rotate an indexing gear supported for rotation by said body, said indexing gear having teeth and rotatable in one direction as a result of the back and forward movement of said link, said indexing gear teeth positioned to engage the coupling members connecting the fastener attachment members to the carrier tomove the fastener attachment members into position to be dispensed through said needle by said ejector.

21. An apparatus according to claim in which said feed pawl comprises a hook-like end for engaging one tooth at a time of said indexing gear to rotate it, said pawl having a slotted pivot hole, and support means positioned within said slotted pivot hole, said pawl constructed to rock back and forth about said support means as the link moves back and forth.

22. An apparatus according to claim 21 in which said support means comprises a shaft coupled to the indexing gear and supported by the body.

23. An apparatus according to claim 22 in which said pawl has a bend therein such that a portion of the pawl is parallel to the indexing wheel and another portion of the pawl is positioned above and in a plane passing through the center of the indexing gear.

24. An apparatus according to claim 23 in which means is provided for resiliently biasing a portion of said pawl against a cover to provide friction for camming of the pawl.

25. An apparatus according to claim 24 in which a resilient biased detent is supported by said apparatus adjacent said teeth of said wheel, said detent member is positionable between two teeth of said indexing gear to retain it in place while at the same time permitting the indexing gear to be rotated when the pawl hooklike end engages the teeth of the gear or when the pawl hook-like end is moved away from the teeth and the carrier is pulled out of the nose of the apparatus.

26. An apparatus according to claim 25 in-which release means is coupled to the link to rotate it to move the pawl hook-like end away fom the indexing gear teeth to permit said carrier to be pulled out of said nose.

27. An apparatus according to claim 20 in which said slide comprises a plurality of holes formed therethrough and positioned in a row to engage gear teeth of gear means.

28. An apparatus according to claim 27 in which said link hasa cutout formed therein and stop means at either end of said cutout, and wherein said slide includes a projection to engage the stop means to move the link back and forth.

29. An apparatus according to claim 28 in which the needle has a cutting edge at the rear thereof and a second slot in the rear thereof for permitting the entry of the head end of the fastener attachment member.

30. An apparatus according to claim 20 in which the needle has a cutting edge at the rear thereof and a second slot in the rear thereof for permitting the entry of the head end of the fastener attachment member.

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Classifications
U.S. Classification227/67, 227/95
International ClassificationA41H37/00, B65C1/00, B65C7/00
Cooperative ClassificationB65C7/005, A41H37/008
European ClassificationA41H37/00C4, B65C7/00C2