DE2238517A1 - DEVICE FOR DISPENSING AND INSERTING FASTENING ELEMENTS - Google Patents

Description

August 4, 1972 A 206 72 Ml / ib

DENNISON MANUFACTURING COMPANY, 300 Howard Street, Framingham, Massachusetts 01701 / USA

Device for dispensing and inserting fasteners

The invention relates to a device for dispensing and for the insertion of fasteners ^ the one thread-like part with heads at both ends. The invention is applied where labels are attached to items of clothing are to be attached, different layers are to be connected to each other, buttons or the like on coats or to be attached to other items of clothing or in numerous other applications where two or several layers of a substance are to be held together.

In particular, the invention provides an improvement to 309808/08 8 7

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the device described in US Pat. No. J 10j5,666. In addition to the prior art,
U.S. Patents 3,470,834 and 5,494,004.

Devices of U.S. Patent 3,103,666
are widely used. While such devices work acceptably and reliably, there has been a need for an improvement that would increase their reliability and durability.

With the invention, such a device is improved to the effect that on the carrier carrying the fastening element until it is in the bore of the needle of the device
is released, there is a handle. This feature ensures against incorrect feeding and thus clogging of the device and thus creates increased reliability.

Another improvement can be seen in the fact that it is
is designed so that a second fastener can not be promoted before the previous work flow
is completely finished. This also prevents the device from clogging.

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The apparatus of the invention also provides an improved slide and propulsion arrangement for movement created of the ejector that drives the fastener through the needle bore. The sliding arrangement is like this consulates that there are no cavities or depressions in which pasers or other foreign bodies can collect, ultimately causing the device to malfunction.

Further uses and advantages of the invention will become apparent from the following description of exemplary embodiments clear. The invention has features of construction, combination of elements and arrangement of parts on what follows from the description. The drawing shows in detail:

Fig. 1 is a side view of the device according to the invention, in which a handle is drawn in two different positions; ·

Fig. 2 is a view of the device from the opposite side;

Fig. 3 is a plan view of part of the device;

FIG. 4 shows a partially opened and in some parts broken away representation of the device; FIG.

FIG. ¹ j shows a section along the line 5-5 in FIG. 4; 6 shows a section along the line 6-6 in FIG. 4;

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7 shows a section along line 7-7 in FIG. 4;

Fig. 8 is a plan view of a slide which is moved back and forth when the handle is actuated will;

FIG. 9 is a side view of the slide according to FIG. 8; Fig. 10 is a section along the line 10-10 in Fig. 9; 11 is a side view of a slider according to the invention which differs from that in FIGS the plate shown is moved back and forth;

Fig. 12 is a plan view of the slide of Fig. 11; 13 shows a section along line 15-13 in FIG. 4; 14 shows a section along line 14-14 in FIG. 4;

Fig. 15 is an enlarged side view of the indexing conveyor mechanism according to the invention;

Fig. 16 is a side view of the conveyor pawl shown in Fig. 15;

Fig. 17 is a side view of a pawl carrying plate of Fig. 15;

18 shows a section along the line 18-18 in FIG. 15;

19 shows a section along the line 19-19 through Fig. 15;

Flg. 20 individual working positions of the conveyor mechanism up to 22 mus;

Figure 23 is a front view of the part making up the ratchet wheel releases in Fig. 4;

FIG. 24 shows a section along the line 24-24 in FIG. 23; FIG. Figure 25 is a rear view of the part of Figure 23;

26 shows the front view of a fastening element on a carrier;

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Pig. 27 several fastening elements in side view on the carrier]

Pig. 28 in different views one on the Needle that can be used up to 52 devices according to the invention j

Fig. 33 shows another needle construction which can be used in the device according to the invention

FIG. 34 is a front view from the left in FIG. 21 of the Conveyor mechanism of the device according to the invention;

Pig 35 top and side views of a preferred embodiment of the element 84 of FIG. 34;

37 shows a preferred configuration of the element 85 and FIG its rest position with respect to part 98; and

38 Front and side views of element 85. and 39

Fastening elements are shown in FIGS. 26 and 27, which are output by the device according to the invention. These designated by 30 fasteners have a thread-like Part 31 and head pieces 32 and 33. By means of connecting pins 35, the fastening elements are connected to one another Support 34 connected. When the fasteners 30 through the Needles are dispensed, they are separated from the carrier by the fact that the connecting pins are passed.

First of all, Figs. 1 to 33 are to be considered, based on which the overall design of the device according to the Invention is described. The device 38 has an exterior

Housing 40, which consists of two halves 4ia and 41b and one Handle 42 is made by a coupling element 45 therewith connected is. The housing or the body part has a head part 40a in which guides 40b and 40c and 40d are present through which the fasteners, the bracket and the connecting pins are inserted into the device and the carrier and the connecting pins are ejected again, after the device has issued the fasteners.

In the head part 40a there is a needle 45 with a longitudinal slot 45a used, with a head 54 of the fastening » element can pass through the needle while the thread-like part slides through the slot between the heads. The needle has a cutting edge 45b at the rear end, with which the connecting pins 35 are cut off, and a second slot 45c through which the heads of the fasteners are fed into the device.

The design of preferably used needles can be seen in detail from FIGS. 28 to 53, which will be described in more detail later.

The needle 45 is in the head part by a locking pin 46 held, the one gripping part 46a and a slot

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(not shown), so that the needle 45 with her Insert part 45c inserted into a bore 47 in the head part 40a can be.

So that the fasteners in the needle slot 45a are driven in, the handle 42 is by means of a hinged strut 48 connected to a gear set consisting of a pair of toothed segments 49 and 50, teeth 49a and 50a, respectively, along their outer surface exhibit. The connecting link 48 is at 51 with connected to the toothed segments, as can be seen in FIG. The toothed segments 49 and 50 are in turn pivotable connected to the body 40 of the device, which can also be seen in FIG. At 60 is a slider (in particular in Fig. 6, 7 and 8 to 10), which in guide slots 61 and 62 can slide back and forth in the fuselage, these guide slots in the fuselage half th 4.1a and 4ib. are located.

The slider 60 is molded with a number of holes 60a equipped, in & ie the teeth 49a and 50a of the tooth segments can intervene. The holes extend from the bottom surface 60b to the top surface 60c and are in two rows. so that the teeth of both Tooth segments can engage., This prevents

that dust or Pasern the interaction of the slider and the tooth segments, as there are puffs or lint are pushed out of the holes 60a again by the teeth themselves. When pivoting the toothed segments the slider 60 also slides back and forth to the front and back.

The slider 60 is also with a hole 6Od and a cavity 60e into which an ejector 61 having an L-shaped end 61a (see FIG. 4) engages. Of the The end of the ejector 6ia is held in the slide and performs the to-and-fro movements with it so that it is able to drive the fastening elements through the needle.

The eject DD 61 is supported at its front end by a guide member 62 (Fig. 4 and 13) and by partition or cover plate 90 held between the fuselage halves (see Figs. 13, 14 and 17).

When the handle 42 is pivoted, the toothed segments (see Fig. 4) rotated counterclockwise and move the ejector forward so that this one head J2 one

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Fastener ^ O pushes through the needle to get him at the tip of the needle. As the ejector moves forward, the connecting rod 35 is attached to the Cutting edge 45b of the needle severed. So that the ejector moves backwards in order for the next working process, namely the output of the next one larger Number of fasteners to be ready is a resilient restoring device 70 is provided with a recess 7I in the fuselage in which a telescopic element is located 72 can move. The telescopic element 72 is articulated connected to the tooth segments 49 and 50 at 73 (see Fig. 4 and 6), whereby the toothed segments under the influence of the resilient restoring device with the spring 74, which in the recess 7I is inserted, can be pivoted clockwise. So when the handle 42 in the direction of the trunk of the device has been swiveled to and then released, it is pushed back into the splayed position shown in FIG.

The device also contains a single feed mechanism 80, which always has a fastener in front of the rear End · the needle moves so that these »are ejected from the ejector can; The limit feed mechanism 80 has a trigger

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IMIOi / ϋ · Ϊ7

wheel 81, which sits rotatably on a shaft 82 and is connected to this, which in turn in a bore 83 in the Torso is held (see Figs. 4, 14 and 15).

The trigger gear lies in a space between the cover 90 and the projection 4ic (Figs. 14 and 15); one fuselage half 41b is integrally formed. Between the trigger wheel 81 and the cover 90 on the one hand and the projection 41c on the other hand, there is some air in each case, so that the wheel can turn freely.

The trigger wheel 81 has a larger number of teeth 8ia on its circumference, which on the connecting elements 35 can attack to the support rod height 34 and thus the connecting elements pushing yourself through the device. The trigger wheel rotates counterclockwise into the Pig. 4 and 15 # For this purpose a pawl 84 with a longitudinal hole 84a, which is penetrated by a support device through which the shaft 82 passes, is rotated forward will. The pawl 84 moves back and forth with respect to the shaft 82, which is caused by the movement of a drive mechanism such as a link 85, the is articulated at 86 with the pawl. The pawl has a pusher such as a shark-shaped end 84b with a point 84c

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stiff, which Jewells runs against a tooth of the trigger wheel and the had rotates (Figs. 4 and 16).

The pawl end 84b has an arc 84d so that it rests with a part 84e against the cover 90 (FIG. 18), whereby an air gap is created between the pawl and the wheel and the slotted part of the pawl can move freely, when it is moved back and forth. The summit 84c of the pawl extends over the teeth 81a (see FIG. I5). In addition, the pawl has a part that is in a plane parallel to the wheel, and a part that is with the Wheel lies in the same plane. The pawl is made by a resilient element. 87 held in place within a recess 88 lies and presses against the pawl with elasticity by a spring 89 (see FIG. 14).

The element 87 presses the pawl 84 against the cover 90 so that the hook end 84e with frictional engagement against this Cover is held (Fig. 18) when the pawl is on the shaft is moved forward and backward.

The slot 84a has upper and lower boundary walls 84aa which are arcuately arranged with respect to the point 84c,

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so that when the pawl is shifted to the left in Fig. 4, the point 84c comes out of engagement with the trigger wheel, while when the point 84c moves in the opposite direction, it engages the trigger wheel. So it exists an acute angle crt / between the walls 84aa, which are parallel to each other, and a connecting line from the center thereof to tip 84c to achieve this cam action.

So that the wheel does not turn when the pawl is pivoted back and forth, the wheel step by step forwards to move, a cover element 90 (Fig. 15 »17 and 19) is provided, which is attached to the fuselage and has a spring element 91 with a protruding tip 91a. The tip 91a is intended to engage in the space 92 between the teeth 8ia (Fig. 19) so that the trigger wheel does not turn. The tip 91a slides over the side flanks of the teeth 8ia if the wheel is adequate Force is rotated, for example when the pawl 84 engages. The tip 91 a thus acts as a brake that sufficiently strong movement drive for the wheel 81 is overcome. With the help of the resilient tip 9I, the

.the

Movement of the beam seated on / fasteners is effective controlled.

309808 / U88 7

The drive elements for the to-and-fro movement ^: r of the pawl have the part 85 that attaches to the fuselage 93. stigt and slidably carried (see Figs. 7, 11, 12 and 20-22).

The part 85 has a cutout 85a and stops 85b at both ends of the cutout 85a. The attacks serve to engage a projection 60f of the slide 60 (Pig. 8,9 and 20 to 22). So if the slider 60 moved back and forth, the part 85 is also moved back and forth and thus moves the pawl back and forth, so that the trigger wheel is switched on. Part 85 will held at its rear end by an element 95 which sits in a recess 96 (see FIGS. 4 and 7), which in the The fuselage is molded in, the element 95 being pressed against the part 85 by a spring 97. The upward movement of the

, 85

Part / is by a projection 98 on the fuselage (see Fig. 4 and

7) and sideways movement of part 85 in one direction is limited by a pin 99 seated on the fuselage (Fig. 7). The protrusion 98 can also serve as a rear stop for the ^: stop 85b if so desired (see Figure 37 which shows a preferred construction and relationship between elements 85b and 98).

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The part 85 also has a projection 85c which protrudes on the side (FIGS. 11 and 12). The lead engages in a bore 100a of a control element 100 (see FIGS. 2j5 to 25 and 1) in which it is held. That Control element 100 has a finger projection 100b with which it passes through a window 101 in the fuselage (FIG. 1).

A displacement of the projection 100b downwardly and to the side allows the part 85.wie shown in Fig. 22, to move, whereby the pawl is withdrawn 84 from the teeth of the trigger gear 81, whereby a carrier Jk with ansitz forming fasteners, the thus is connected, can be pulled out by turning the trigger wheel 81, the braking effect of the projection 91 ^{a is} overcome.

The mode of operation of the device according to the invention is now the following:

1) A bracket with fasteners on it is inserted into the device through guides in the headboard;

2) the handle 4} is then pivoted against the trunk, whereby the part 60 is displaced to the left in Fig. 20, so that the ejector 61 is the head of a fastener advances through the needle, at the same time the connection

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309808/0 987

dungsstäbchen severed from the needle cutting edge 45b will;

5) when moving the element 6O to the left becomes simultaneously the pawl 84 moved to the right, as can be seen in Figure 20;

4) if the handle 42 is then released, it moves * the resilient support device 72 to the right, wherein the sliding element 60 slides back again, the connecting element 85 also being displaced to the right;

5) the ejector is then in its retracted position and is located outside the needle, while the pawl 84 is pivoted forward and the trigger wheel in Has pivoted clockwise, whereby-through the next following fastening element in the dispensing position in front of the needle moved 4.st.

A preferred exemplary embodiment of the needle 45 from FIG. 4 is shown in FIGS. 28 to 51. The needle is there of two parts that are mechanically firmly connected to each other, one part at 45e and the fastening part shown at 45f. The fastening part is preferably made made of a hard or rigid plastic material, while the actual needle part 45e is made of metal

-1G-

The needle has a slot 45a and a rear cutting edge 45 b as well as a second slot 45 c, which already explained earlier. The rear cutting edge is preferably V-shaped, with the base being V-shaped Notch has a small radius, thereby cutting off the connecting pins from, for example, polyurethane is facilitated.

Fig. 33 shows a somewhat modified needle construction. This needle is made from a single piece of metal, but has Slots and cutting edge like the previous one.

34 to 36 will now be discussed briefly showing a preferred embodiment of the pawl 84. The pawl 84 has one in this construction Retainer or protrusion 84e overhanging tip 84c protrudes. The purpose of this retainer or projection 84e is to keep the pawl 84 out of contact with the element 87 comes when retracted with element 85c depressed is.

Referring now to Figure 87, a preferred embodiment of member 85 and specifically its stop is considered

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309808/0887

85b in the rest position in FIG. In this Figure, the stop 85b is shortened so that it does not come into contact with the element 98, so that this element 98 cannot act as a movement limit.

FIGS. 38 and 39 show a preferred embodiment of the driving part 85 which has a side finger 85e which is bent out and engages a second hole 84f in the pawl 84. That way, the pawl becomes moved back and forth by part 85 as it moves.

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309808/0807

Claims (1)

PATENT CLAIMS 1J Device for the individual dispensing of fastening elements, which are connected to a carrier by means of a connecting pin, which device has a body part, a hollow needle with a longitudinal slot on one side that sits on the body part and protrudes from it, an ejector carried by the body part for the propulsion of a The head of a fastener through the needle, the thread portion of the fastener running through the needle slot, and having a trigger wheel with numerous teeth which engage the connecting rods to each press a fastener into a position that it can be pushed out through the needle, characterized by a feed pawl (84) which engages the teeth of the trigger wheel (81), which pawl (84) has an elongated hole (84a) and a tip (84c) engaging the teeth of the trigger wheel (81) , in the body (40 ) solid means enforce the elongated hole so that the pawl (84) can move back and forth and with her movement drive means (85) are connected, - 19 - which they pivot forwards and backwards so that the tip (84c) engages the next following tooth, to advance the trigger wheel (81) by one tooth. ' 2. Apparatus according to claim 1, characterized in that the first means are a shaft on which the trigger wheel (81) is rotatably mounted. 3 · Device according to claim 2, characterized in that the pawl (84) is cranked so that a section next to the trigger wheel (81) and another section lies in the same plane above the trigger wheel (81) and engages in its teeth. 4. Apparatus according to claim>, characterized in that a spring-loading device which loads the pawl (84) and presses it against a cover and is mounted in the body part is provided. · ■ 5. 'Device according to claim 1, characterized by a spring tongue (91), which spring into the spaces between the teeth of the trigger wheel (81) reaches in and on the. Teeth, but their holding force if there is sufficient torque on the trigger wheel (81) is overcome. . . . . . . - 20 - 309808/0887 6. Apparatus according to claim 5 # characterized in that the first means are a shaft which is connected to the trigger wheel (81) and which rotatably supports it. 7. Apparatus according to claim 6, characterized in that the pawl (84) is cranked so that a part is in one plane next to the trigger wheel (81) and another part is above the trigger wheel and engages in its teeth. 8. Apparatus according to claim 4, characterized by a spring tongue (91) which extends into the spaces between the teeth of the trigger wheel (81) engages and brakes its rotation, but if the torque of the trigger wheel (81) is sufficient, it stops is pushed out of the gaps and slides over the teeth. 9. Device according to one of the preceding claims with a single feed mechanism, characterized by a wheel (8i) / elner plurality of teeth on the circumference, one with a hook end (8%) provided pawl to engage the teeth for the advance by one tooth pitch in one direction, whereby the pawl (84) an elongated hole (84a) and this penetrating - 21 - 309808/088 7 Has suspension means on which the pawl is forward and can move back, and means connected to the pawl to incrementally move the wheel when the Pawl moves back and forth. 10. Apparatus according to claim 9, characterized in that the support means are a shaft on which the trigger wheel is rotatable sits. 11. Apparatus according to claim 10, characterized by a spring tongue (91), which engages in the spaces between the teeth and presses resiliently against the teeth. 12. Apparatus according to claim 11, characterized in that the hook-shaped end of the pawl (84) is cranked so that it comes to rest over the teeth, and that spring means are provided are to press part of the pawl against a cover (90) with frictional force. 13 · Device for the individual dispensing of fastening elements that to several sitting by means of connecting rods on a carrier, which device has a body part, a hollow needle with a longitudinal slot on one side, which is held in the body part and from - ■ 22 - 30 98 08/083 7 protruding from it, an ejector in the body part for propelling the head of a fastening part through the needle, the Pad part of the fastener that connects to the head part connected, slides through the needle slot, and single advance means are provided to each have a fastening in element at the time / to a position from which it can be ejected by the needle, indicated by a slider (60) to which the ejector (61) is connected and which has several holes (60a) going through from one side to the other engages in the teeth (49a) while the drive means for moving the slide (60) back and forth are toothed segments (49) provided with the teeth (49a). 14. Apparatus according to claim 1j5 # characterized in that the drive means have a handle (42) which is connected to the tooth segments (49) via an articulated connection (48.50), and resilient return means (70) in the body, which the tooth segments Push (49) back in one direction. 15. Device according to claim 14, characterized in that there are two tooth segments lying parallel to one another, which engage in two rows of holes (60a) in the slide. 309809/0887 16. Apparatus according to claim 15 *, characterized in that the ejector has an L-shaped portion that extends into a Hole (6Od) of the slide engages from below and embedded with a part in a groove (6Oe) in the upper side of the slide lies, 17. Device according to claim 15j, characterized in that the Single feed device has a link and the slider has a protrusion (60f) which pushes the link forward and moved backwards. 18. Apparatus according to claim 17, characterized in that the Link has a cutout with stops at both ends, in which the projection (60f) in its back and forth Movement engages. 19. Apparatus according to claim 18, characterized by means for Rotate the link clockwise to reveal the fastener backing rods. 20. Apparatus according to claim I9 * characterized in that the Means resiliently pushing the link in one direction. 309808/0887 21. Device for the individual issue of fastening elements, which are seated in groups by means of carrier rods on a carrier with a body part, at the front end of which a needle protrudes, which has a longitudinal slot on one side, so that a head of the fastening elements can slide through the needle while the Part of the thread slides through the slot between the heads, with guide elements in the head part enabling the fastening elements to be fed into the device at the rear end of the needle on their carrier, characterized in that a handle is articulated to the body, gear elements are coupled to the body and the handle and are rotatably supported by the handle in the body when that is pivoted against the body, a slider with engagement possibilities for the gear elements is arranged in the body so that it is displaced back and forth when the handle is reciprocated, one Resetting device engages the gear elements, vo m slider an ejector is carried, which is movable towards the needle and pushes a fastener head through the needle when the handle is moved towards the body, a member (B ¹ ..)) is slidably mounted in the body and means with the Sliders (60) are connected to move the link (85) back and forth, the link being articulated with a front pawl 309808/0887 (84) is in connection, which rotates a trigger wheel (81) on its teeth in one direction, while the trigger wheel teeth the connecting rods that hold the fasteners are connected to the carrier,. grips and the fastening elements individually pushes into the delivery position from which they are ejected by the ejector through the needle. 22. Apparatus according to claim 21, characterized in that the conveyor pawl (84) has a hook-shaped end (84b) for engagement, to each one tooth of the trigger wheel (81) to rotate it, and the pawl contains an elongated hole (84a), which of Support elements is penetrated, around which the pawl pivots forwards and backwards when the link (85) is seen and moved. 2 ^. Device according to claim 22, characterized in that the Supporting elements are the shaft on which the trigger wheel. (81) is held in the fuselage. 24. Apparatus according to claim 2j5, characterized in that the The pawl is cranked so that one part is parallel to the trigger wheel (81) and another above the trigger wheel in its plane lies. ι j'jfio j «ι η / 2 ¹ year device according to claim 24, characterized in that a section of the pawl is resiliently pressed against a cover (90) for the purpose of frictionally locking the pawl. 26. Apparatus according to claim 23, characterized in that a spring tongue (90) engages in the space between the teeth of the trigger wheel (81) which, when there is sufficient rotational force, engages
Trigger wheel by engaging the hook part (84b) of the pawl
on the teeth or when pulling the carrier out of the
Head of the device is twisted. 27. Apparatus according to claim 26, characterized in that unlocking means (100) are connected to the member (85) to pivot it so that the hook-shaped pawl part (84b) is disengaged from the teeth of the trigger wheel (31) to pull the carrier out of the head part. 28. Apparatus according to claim 21, characterized in that the slider (60) eiiE number of in a row for the Engagement of the teeth (49a) of the tooth segments (49) has provided holes. IQ 9 »l 0 3 / 29 · Device according to claim 28, characterized in that the link (85) has a cutout and stops (85b) at both ends of the cutout and on the slider a projection (60f) is provided for engaging the stops for back and forth movement of the link (85). 30. Apparatus according to Amspruch 29, characterized in that the needle (45) at the rear end has a cutting edge (45b) and rearward of it -has a second contactor for the entry of the head end of the fastening element. 31. Apparatus according to claim 21, characterized in that the needle at the rear end has a cutting edge and backwards of which has a further slot for the entry of the head part of a fastening element. 32. Device according to claim 4, characterized in that the pawl into a protruding retaining member (84e) to attack on your resilient element when the pawl is in one of the possible positions. 33 · Device according to claim 1, characterized in that the Vornchubkl3nke (84) designed with a second hole (86) 3Q3808 / 08Ö7 is engaged by a finger protruding from the drive elements for the pawl to move the pawl back and forth . 309808 / U88 7