US2212584A

US2212584A - Fastening-supplying mechanism

Info

Publication number: US2212584A
Application number: US298443A
Authority: US
Inventors: Philip E Burby
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1939-10-07
Filing date: 1939-10-07
Publication date: 1940-08-27
Anticipated expiration: 1957-08-27

Description

Aug. 27, 1940. p, E, BURBY 2,212,584

FASTENING-SUPPLYING MECHANISM Filedoct. 7, 19:59

'TUT' C@ kk Patented Aug. 27, 1940 unirse STATES rAsTEmNG-SUPPLYING MEonANisM Philip E. Burby, Beverly, Mass., assignor to4 United Shoe Machinery Corporation, Borough of Flemington, N. J.

Application October 7.

11 Claims.

This invention relates to mechanisms for supplying fastenings to the driving instrumentalities of machines which drive gangs of iastenings, andv of racewaysfor fastenings and a separator oper-v ated intermittently to separate and deliver iastenings from the raceways. Some machines drive such a large number of fastenings that it is impracticable to provide as many raceways as the number of fastenings driven in each cycle of operations, and they have accordingly been provided with half as many raceways as the number of fastenings driven and with `means for operating the separator 'to deliver two sets of fastenings in each cycle, the rst setbeing de- 20, livered to a receiving slide in which the fastenings are retained until ,the second set is delivered. Such a construction is disclosed, for example, in Letters Patent No. 1,129,882, granted on March 2, 1915 on an application of R. F. Mc- Fe'eely. l

It will be evident that if a separator operated twice in each cycle as above described delivers each time the same number of fastenings, an

even number of fastenings will be supplied to the 30; driving instrumentalities regardless of the number of the raceways. In some machines, however, it is desirable to drive an odd number of iastenings The present invention accordingly provides novel means to cause different numbers 35% of fastenings to be delivered respectively by different delivery movements of a separator. For the purpose in view, the construction herein shown comprises a rotatable member associated with one of the raceways and soy formed as to 401, prevent delivery of any fastening from that raceway when the member is inl one position but to permit such delivery when it is turned to another position, and means movable with the separator for turning the member to dierent 4:51.2 positions so that different numbers of fastenings will `be delivered respectively at different times. More particularly, as herein illustrated, the rotatable member consists of adisk having therein diametrically opposite slots each arranged'to re- 50;r ceive the endmost fastening in the raceway and permit its delivery by the separator when the disk is inthe appropriate position and formed betweenthe slots for peripheral engagement with the endmost fastening to prevent its delivery, the

55 f disk being turned ninety degrees about its axis 1939, serai N5. 298,443

prior to each delivery movement of the reciprocatory separator so that` diiierent niunbers of fastenings are delivered respectively by alternate delivery movements of the separator. For turning the disk there is provided a pawl `which is movable with the separator and acts on one of four pins carried by the disk each time the separator moves in one direction, the pawl being yieldable idly upon engagement with another of the pins as the separator receives its delivery movement in the opposite direction. For maintaining the disk in its properposition after each turning movement, there is further provided in the construction shown a spring-controlled member arranged to bear against two of the pins.

The Vnovel features of the invention, including various novel details of construction and combinations of parts, will now be more particularly described with reference to the accompanying drawing and thereafter pointed out in the claims.

In the drawing,

Figfl is a perspectivefront view of fasteningsupplying mechanism constructed in accordance with the present invention, a portion of the structure being broken away;

Fig. 2 is a view substantially in plan of a portion of the structure shown in Fig. 1, the parts being shown in the positions which they occupy after the beginning ofa movement of the separator toward the left from its initial position;

Fig. 3 is a View similar tovFig.'2, but showing the parts as thei7 appear after the'separator has completed its movement toward the left;

` Fig. 4 is substantially a plan View of a portion of the structure, with parts above removed and certain parts in section, illustrating" conditions after theseparato-r has moved toward the lright to separate and deliver a set of iastenings;

` Fig. 5 isa section on the line V-V of Fig. 3; and

Fig. 6 is a plan view of the disk which controls delivery of fastenings from one of theraceways, showing the disk detached from the rest of the mechanism.l

Fastening-supplying mechanism of the type illustrated in the above-mentioned Letters Patent, which is constructed particularly for use with tacks, comprises a support `2 or a plurality of inclined raceway devices ll (hereinafter re ferred to` as raceways) which receive tacks de' livered by ahopper (not shown) and support the tacks in rows by their heads. Mounted'to reciprocate transversely of the raceways at their lowerk ends is a separator 6 comprising aplate or series of plates secured to a slide 8. AThe sepa-` rator includes a plurality of pointed fingers Il) the rear edges of which are arranged to engage the shanks of the endmost tacks in the raceways and thus to hold back the rows of tacks, asy

illustrated in Fig. 2, until the separator has moved Y far enough toward the left for the points of the iingers to pass beyond the endmost tacks, whereupon the rows of tacks are released and move downwardly along the raceways until the endmost tacks are stopped by engagement with shoulders l2 on the separator, as illustrated in Fig. 3. When'the separator is thereafter moved toward the right, the points of the fingers Iii enter lbetween the endmost tacks and the tacks next to them and cause the endmost tacks toy move along oblique slots ifi in the separator until holes i6 at the inner ends of the slots aline with the heads of the tacks, whereupon the tacks are permitted to drop through grooves i3 formed in a block 2li and through holes 22 in the member 2. The tacks pass from the holes 22, in-the constructiony herein shown, into holes 255 formed in a receiving slide 2tV which receives one set of tacks delivered bythe separator and retains them until the next set is` delivered by the separator, whereupon both sets are delivered from the receiving slide tothe tack-driving mechanisms of the machine, in accordance with the disclosure of Letters Patent No. 1,129,882. The block 2Q, commonly known as the end block, is supported in a readily detachable manner on the memberV 2 and assists in supporting the separator 5. to this end block are a plurality of plates 23, herein shown as three in number, which overlap the separator t and also overlap the lower end portions of the raceways il in recesses in the tops of the raceways, portions of these plates being reducedv in thickness and provided with slots 3B (Figs. 2 and 3) in line with the raceway slots to receive the'tacks 4at the lower end portions of the raceways. At the lower ends of the slots 3Q, except one of the slots as explained below, the plates 26 are provided with holes 32 which permit the tacks to drop as soon as the holes l'in the separator arrive in alinement with the holes 32.

For ypurposesY of this' invention there is mounted ina circular recess formed underneath inthe middle plate 2t a thin circular disk 34 which lies in the same inclined plane, parallel to the inclination of the raceways, as the slotsll in' the plate, this disk being provided with diametrically opposite slots 3S each arranged to aline at times with one of the slots 30, which is shorter than the others, and with the corresponding raceway li,

v so as toreceive a tack and permit it to be delivered from that raceway by the separator, as illustrated in Fig. 3. At the inner end of each slot 36 is a hole 38 in the disk which permits the tack to' drop-when'thecorresponding hole l5 of the separator arrives in alinement therewith, the holes 33. thus servingl the same purpose as the holes 32 at the lower ends of the longer slots 3ii in` the plates 23. V"When the disk 3ft is not in such a position that one or the other of its slots u 36., is in .alinement with the short slot 3d, the

periphery ofthe disk engages the shank of the endmost tack inthe corresponding raceway and prevents that 'tack from moving far enough downwardly toengage'the shoulder l2 on the separator and to be separated by the corresponding iinger lll ofthe separator. By means hereinafter described the disk 3 isturned ninety degrees about its axis in a counterclockwise direction, as viewed from above, each time the separatori. receives its movement toward the left,

Fastened and the disk remains in the position to which it is thus turned throughout the succeeding tack delivery movement or the separator toward the right, One such movement of the separator toward the left brings one oi the slots 35 in the disk 3d into alinement with the short slot 30 in the middle plate 28, as illustrated in Fig. 3, and the next movement of the separator toward the left brings the disk into a position in which that slot 3G is in line with a point on the periphery of. the disk midway between the two slots 36 in Y the disk. It will accordingly be evident that the separator Vdelivers alternately the same number oi tacks as the number of the raceways and a number which is one less than the number of lthe raceways.` An odd number of tacks, therefore, is delivered for use in each cycle of operations of the machine.

The disk 34 has an upstanding cylindrical portion flu extending through a hole in the middle plate 28 and engaged on its upper end by a lug 42 lower face of the disk in Fig. l. Also mounted' in the recess 556 in the separator is a pawl Eil controlled by a spring 52 carried by the separater, thespring maintaining the pawl normally in such a position that its end face will engage one of the pins i8 and turn the disk ninety degrees about its axis each time the separator moves toward the left, as illustrated in Figs. 2 and 3. When the separator is next moved toward the right an inclined face Sii on the pawlis engaged by another of the pins i8 to cause the pawl to swing against the resistance of the spring 52 until it .passes that Ypin and is returned by the spring to the position indicated in Fig. 4 adjacent. to the pin which it has just passed. In

order. to insureY further that each slot 35 in thev disk 3d will aline properly with the corresponding slot 3d in the middle plate 23', there is providedr a finger 56 having a straight edge arrangedto` engage two of the pins 48, as illustrated in Fig.`4, to determinethe position of the disk after each turning movement thereof. The iinger ilies in a recess 58 in the end block 20 and is fast on the upper endof a spindle 50 mounted to turn in the block, this spindle being controlled by a spring t2 connected at one end to a pin on the spindleand at the other end to a pin on the block 2d. The Vspring t2 tends to turn the spindle till in the direction to force the 'linger' litoward'the pins d8, and it will be understood that when the disk 3! is turned by the pawl Eli the nger 56 is swung against the resistance of the spring 2'by the action of one of It will be evident thatnear the end of each turning movement of the disk the spring-conformed on .theplate this lug being provided with f trolled nger tends, by its engagement with one ofthe pins, to complete the movement of the disk to the 'requiredposition In order to insure that the disk 363 will notcatch on the lshank of the endmost tack in the corresponding raceway when the disk is turned to carry either of its slots 36 out of alinement with the corresponding slot 3B n the middle plate 2&3, the disk is provided at one side of each oi its slots 36 with a beveled edge 64; K

1 The invention is herein illustrated as applied to mechanism includingover the raceways a hinged cover 66 'associated with lingers 68 which may, at the will` of the operator, be made to enter all the raceways to prevent delivery of tacks therefrom, in accordance with the disclosure of Letters Patent No.' 2,047,205, granted on July 14 1936 on an application of J. C.` Jorgensen. The hinged' cover 66, which is shown in upraised position in Fig. 1, is'provided with a` yslot to receive'the'lug 42 andthe upwardly extending cylindrical `portion 40 of the disk 34v when the cover occupies its normal position' over the raceways.

Having described the invention, what I claim Las new and desire to secure by Letters Patent combination with a plurality of raceways `for fastenings, and a device movable intermittently l to deliver fastenings from said raeeways,` of a member mountedv for turning movement and associated with one of said raceways for controlling delivery of fastenings from that'race- Way, said member being so formed as to prevent delivery of any fastening from that raceway when the member is in one position and having a slot arranged to receive a fastening and permit l its delivery by said device when the member is `turned to another position, and meansV for turning said member to its different positions in time relation to movements of said device to cause dierent numbers of fastenings to be delivered respectively by diiferent delivery movements of the device.

2. In fastening-supplying mechanism,A the combination with a plurality of raceways for fastenings, and a device movable intermittently to deliver fastenings from said raceways, of a member mounted for turning movement and associated with one4 of said raceways for controlling delivery of fastenings from that race- Way,said member being so formed as to prevent delivery of any fastening from that ra-ceway when the member is in one position and having `a slot arranged to receive a fastening and permit its delivery by said device when the member is turned to another position, and mechanism movable with said device for turning said member to its different positions to cause different numbers of fastenings to be delivered respectively by different delivery movements of the device.

3. In fastening-supplying mechanism, the

`combination with a plurality of raceways for ways for controlling delivery of fastenings fromv that raceway, said device being arranged to engage the endmost fastening in that raceway and prevent its delivery by the separator when the device is in one :position and being so formed as to permit such delivery when it is turned to another position, and means for turning said device to its differentpositions in time relation to movements of the separator to cause dierent numbers of fastenings to be delivered respectively vby different delivery movements o-f the separator.

the I 4. In fastening-supplying mechanism, combination with a plurality of inclined raceways for fastenings, and a` separator movable intermittently to separate and deliver fastenings from said raceways, of a disk mounted for turning movement in a plane parallel to the inclination rof the raceways and associated with one of said raceways for controllingydelivery of fastenings from that raceway,` said disk being arranged for peripheral engagement with the endmost fastening in that raceway to prevent its delivery by the searator when thev disk is in one position andhaving afslot therein to receive the endmost fastening and permit its delivery by the separator when the disk is turned to another position, and means for turning said disk to its different positions in time relation to movements of the separator to cause different numbers of fastenings to be delivered respectively by different delivery movements of the separator.

5. In fastening-supplying mechanism, the combinationwith a plurality of raceways for fastenings, and a separator movable in one direction to release the fastenings for advancing movements along the raceways and in the opposite direction to separate and deliver the` endmost fastenings from the raceways, of a device mounted for turning movement and associated with rone of said raceways for controlling delivery of fastenings from that raceway, -said ,device being arranged to engage the endmost fastening in that raceway and prevent its delivery by the 6. In fastening-supplying mechanism, the

combination with a plurality of raceways for fastenings, and a separator movable intermittently to separate and deliver fastenings from said raceways, of a member mounted for turning movement and associated with one of said raceways for controlling delivery of fastenings from that raceway, said member having therein diametrically opposite slots each arranged to receive the endmost fastening in that raceway and permit its delivery by the separator when the member is in the appropriate position and being formed between said slots for peripheral engagement with the endmost fastening in the race- Way to prevent its delivery by the separator, and means for turning said member ninety degrees about its axisprior to each delivery movement of the separator to cause diiferent numbers of fastenings to be delivered respectively by alternate delivery movements of the separator.

7. In fastening-supplying mechanism, the combination with -a plurality ofraceways for fastenings, and a separator mounted for reciprocatory movements to separate and deliver fastenings from said raceways, of a device mounted for 'turning movement and associated with one ofrsaid raceways for controlling delivery of fastenings from that raceway, said device being arranged to engage the endmost fastening in that raceway and prevent its delivery by the separator when the device is in one position and being so formed as to permit such delivery When it is turned to another position, and a member upon engagement with another portion of said device as the separator moves in the opposite direction. l

L@erection to release the iastenings'for'vadvancing 8. In fastening-,supplying mechanism;4 .thecombination withv a plurality ci racewaysior fastenings, and a separatorr mounted'ior reciprocatory movements'to separate and deliveriastenings from said racevvays, cia device mounted for turning movement and associatedvvith one1 of said raceways ior controlling delivery ci iasteni'ngs -fromthat raceway, said device being arranged'to engage the endmost fastening in that racevvay' and prevent its delivery by the separatorwhen the device is in one position and being so formed as `to permit such delivery when it is turned to another position, a member movable with the separator to turn'said device to a diierent Vposi*- tio-n each time the separator moves in one. direce tion, and spring-controlled means for maintaining the device in the position to which it is thusf turned as the separator moves in the opposite direction.

9. Iniastening-supplying mechanism, the combination with a plurality oi racevvays for fastenings, and a separator Vmounted for reciproca-- tory movementsto'separate andA deliver fastenez ings from said racevvays, of a device mounted' for turning movement and associated with oneof said raceways for controlling delivery of fastenings from that race'tvay, said device beingy ar-w ranged to engagethe endinost fastening in that` raceway and prevent its delivery by the separa? tor when the device is in one positio-n-and'being so formed as to permit such delivery when it is turned to another position', a pawl movable with the separator for engaging a portion of said device to turn the device each time the separator moves in one direction, said pavvl being yieldable npon .engagement with another portion of said device as therseparator moves in the opposite direction, and a springcontrolled member' for engaging the device to maintain it in theposition* lto which it is thus turnedas the separator moves in saidV opposite direction.

10. lin fastening-supplying mechanism, the combination vwith a plurality ci racevvays for fastenings, and a separator movable in: one' di'- movements .along the*racewaysand inV the oppo-l site direction ,to separateiand deliver the endmost fastenings from the racevvayaiof a 'device mounted* for turningl 4movement andv associatedV Wthfone of said raceways for cont-rollingV delivery 'of fastenings'irom that raceWai/, Said device being arranged to engage the Vendmost fastening a p-awlmovable with the separator' for engagingone of said projections to `turn the-device each time .the separator moves `in the 'direction'rto release the fastenings inthe racevvays, Vthe pawl being yieldable upon engagementwith another of said projections as the separator moves in the opposite direction.

ll. In fastening-supplying mechanism, the combination With a plurality of raceways for iastenings, and a separator movable in one direction to release the iastenings 'for advancing movements along the racevvays and in the opposite direction to separate and deliverv the endmost fastenings from the racevvays, of a device mounted for turning movement and associated with one of said racevvays for controlling delivery of fastenings from that raceway, said device being arranged to engage the endmost fastening in that racevvay and prevent its delivery by the separator when the device is in one position and being so formed as to permit such delivery when it is turned to another position, the device being provided with a plurality or" projections, a pavvl movable with the separator for engaging one 'of said projections to turn the device each time the separator moves in the direction to Vrelease the fastenings in the racevvays, and a springcontrolled member arranged to'engage ltvso 'oif said projections to maintain' the device in the position to which it is thus turned as the separatoi` moves in the opposite direction.

PHILIP aferrarse.