US1255551A - Fastener-feeding mechanism. - Google Patents

Description

L. MYERSI FASTENER FEEDING MECHANISM.

APPLICATION FILED APR. 2|. 9|?- Patented Feb. 5, 1918.

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LOUIS avrvnns, on Dnrnorr, ,MIcHIeAn, nssrsnon- ,ro ,Mnon'mn aarrmnncn coercim'rroiv, or. BBQOKLYN,.NEW YORK, aoonron-n'rlon or new .YonK.

EASTENER-FEEDING MECHANISM.

Application filed April 21, 1917.

[0 all whom it may concern:

Be it known that I, LOUIS Mrnns,.a citizen ofthe UnitedStates, residing atDetroit, Michigan, have invented certain new and useful Improvements in Fastener-Feeding ll lechanism, of which the following a full, clear, and exact description.

My inventionrelates to fastener feeding mechanism and has for its, object to produce a mechanism for feeding fasteners to a magazine in a machine for inserting and securingsaid fasteners through material to be fastened. It, is particularly applicable to eyeleting machines, and has for its object to feed the fasteners, one .at atime, into the magazine in sucha manner-that the liability of the mechanism to become blocked in such a manner as to injure the fasteners is avoided.

It further has for-its objectto provide a mechanism which is not liable to be injured by the blocking of the same by afastener, or the return movement of the handle.

It further has for its object to provide a feeding mechanism, having a reservoir which is oscillated during the operation of the machine.

It furtherhas for its object to provide a new and improved reservoir. wMy invention constitutes an improvement upon the eyeleting machine shown and-described in my Patent No; 1,174,9418, granted 'March 7 1916.

The following is a description of. an embodiment of my invention, reference being had to the accompanying drawings, in which:

Figure l is a side elevationof a machine embodying my invention;

Fig. 2 is a section of the upper portion of the same; 1

Fig. 3 is a side elevation of the reservoir, showing a portion .ofitssupporting and actuating. means; 7

Fig. 4 is a bottom plan view of the same with the portion of its containingcup and stud removed; 1

Fig. 5 is a detail view ofthe handle gear;

Fig. 6 is abottomplan view of the gear, looking in the direction of the arrow, Fig. 2, and showing the handle and punch in dotted lines;

Fig. 7 is a detail view ofone of-thefriction washers.

Referring more particularly to the drawings, which show my invention embodied in Specification of Letters Patent.

Patented net. a, rare,

Serial no. 163,544.

an eyeletingmachino, .1 is the base of an eyeleting machine to which are riveted side plates 1 and 1 2 is a punch for receiving the eyelets and forcing them through the material to be fastened. The punch is guided by plates 2 2 supported by the side plates; 3 is an anvil, co-acting with the punch; l is a plunger, protruding from the lower end of the punch and movable upward therein, being held in projected position by a spring 5. 6 is ,a ,spring which normally holdsthe punch in elevated position; 7 is a handle havinga cam 8 whichacts upon the upperend of the punch to force the punch downward when'the handle is depressed; 9- is a magazine feeding eyelets to springs 10,

which support the eyelets beneath the plunger, so that when the punch is brought down the plunger apassesqthrough them and carries them toward the anvil. Above theupper I1C1-.Of the magazinecis a reservoir 11 formed of aninverted cup 12 and baserplate 13. Said cup is provided witha series of projections 1 1, forming spaces 15, through whichrthe eyelets can pass one at a time. These projections terminate in pins 16 which pass ,through holesprovided in the base-plate 13, being then turned over .so as to hold the base-plate to the cup. Mounted on the frame of the'machine isa cup 17 havinga bearing 17 supporting a rotatable studlS, havingon its lower end a gear wheel 19 and units central portiontwo washer-s20, one on each side of the base plate 13. The cup. has on its edge acent to the magazine an openingso shaped as to allow the passage ,of fasteners fromzthe reservoir into the magazine. Above the base-plate and upper washer20, and upon said stud 18, is a com pression spring 21, and above this spring is a nut 22 for holding the spring 21. The washers 20 are friction washers, having flats 22 which engage a fiat 23 upon the stud, so that they are prevented from turning rela tively thereto. The base of the reservoir is thus held by a frictionallgrip between these two washers, which produce a friction thereon, tending to cause the reservoir to follow every movement of the stud, but permitting the stud to turn,independentlyof the reser voir in case the reservoir should become wedged.

Mounted adjacent to the handle is a gear member 24 having gear teeth engaging the small gear 19 and having a flat edge 25 which engages an abutment 26 upon the handle. A pivot pin 27 passes through the handle'and'gear member 24 into the sides 11 of the machine and holds these parts in assembled position. 7 V

The cup 17 is held to the side plates by headed projections 28. The handle on its return stroke is prevented from hitting the cup 17 by a pin 29 passing through the side plates.

The operation of the device is as follows:

Assuming that the reservoir is free to revolve, the downward. movement of the handle causes the gear member 24 to revolve, and this engaging the small gear 19, causes it and its stud to revolve, and the reservoir is carried around thereby on account of the friction of the two washers. An upward movement of the handle results in a reverse movement of the reservoir. It sometimes happens, however, that a fastener will wedge between one of the projections at the bottom of the reservoir and the opening in the cup. This will stop the reservoir, and the friction connection with the stud permits such stoppage without injury. Upon the reverse movement of the handle, however, the movement of the reservoir in the opposite direction moves the fastener so that it is freed and either moves around with the reservoir or falls into the magazine so as to be fed to the punch. On account of the friction connection, the wedging above referred to does not result in injuring either the reservoir, the cup, the magazine or the fastener, and the machine automatically becomes imblocked. The handle is returned by the spring 6 and prevented from hitting the cup 17 by the pin 29. I V 7 As will be evident to those skilled in the art,jmy invention permits of various modifications without departing from the spirit thereof or the scope of the appended claims.

What I claim is:

1. In a mechanism for feeding fasteners, the combination of a cup having a bearing for a stud; a stud mounted therein; a reservoir through the bottom of which the upper end of said stud passes; a washer upon said stud below said reservoir and fixed against axial movement relative to said stud; means for holding the bottom of said reservoir against said washer, so as to-produce a driving friction, and means for moving said stud about its axis. v

2. In'a mechanism for feeding fasteners, the combination of a cup havin a bearing for a stud; a stud mounted thereln and having gear teeth on its lower end; a reservoir through thebottom of which the upper end of said stud passes; a washer upon said stud below said reservoir fixed against axial movement relative to said stud, and means for holding the bottom of said reservoir against said washer, said means consisting of a spring and a holding device upon the upper end of said stud; and a pivotally mounted handle having gear teeth driven thereby meshing with the gear teeth on said stud.

3. In a mechanism for feeding fasteners, the combination of a cup having a bearing for astud; a stud mounted therein having gear teeth on its lower end; a reservoir through the bottom of which said stud passes; a washer upon said stud, in engagement with said reservoir bottom and fixed against axial mm ement relative to said stud; means for holding the bottom of said reservoir against said washer; a handle pivotally mounted in said frame and a gear member carried thereb meshing with the gear teeth on said stu said handle and gear member having engaging abutments, so as to prevent their relative rotation, and a bearing pin passing through said handle and gear member.

4. In a fastener machine, the combination of a cup having a bearing for a stud; a stud carried thereby; means for rotating said stud; a base plate mounted on said stud so as to be frictionally driven thereby, said base plate having around its periphery a series of perforations and an inverted cup having downward projections, providing openings for the passage of fasteners, and extensions from said projections passing through the holes in the base plate and secured therein.

5. In a mechanism for feeding fasteners, the combination of a cup having a bearing for a stud; a stud mounted therein; a reservoir frictionally driven by said stud; frame members to which said cup is secured; a handle pivotally mounted in said frame; means for oscillating said stud as said handle is oscillated; a spring for returning said handle to normal upper position, and a stop carried by said frame for limiting the upward movement of said handle.

6. In mechanism for feeding fasteners, the combination of a cup having a bearing for a stud, a magazine leading from said cup, a stud mounted in said bearing, a reservoir movable relatively to said stud and through the bottom of which said stud passes, means for reciprocating said stud, and means for holding said reservoir on said stud so that said reservoir tends to follow the reciprocating movements of said stud.

' LOUIS MYERS.

Gopies of this patent may be obtained for live cents each, by addressing the Commissioner of Patents,

- Washington, D. C.

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