US2839954A - Device for deforming one of a plurality of interfitting parts to lock said parts together - Google Patents

Description

June 24, 1958 F. w. DOERING ETAL 2,839,954

DEVICE FOR DEFORMING ONE OF A PLURALlTY OF INTERFITTING PARTS T0 LOCK SAID PARTS TOGETHER Filed Dec. 8, 1953 5 Sheets-Sheet l J. Eda/v5.5 J. 6.4406750 57 ATTORNEY June 24, 1958 F. w. DOERING ETAL DEVICE FOR DEF'ORMING ONE OF A PLURALITY 0F INTERFITTING PARTS TO LOCK SAID PARTS TOGETHER 5 Sheets-Sheet 2 Filed Dec. 8, 1955 86 v, MWsM s ,.T B N R #0 0 m J W M r .0 .A W bfl F W I 8 I! i1 i I lfi vw r wk. M Q mw Nu mm 3 R v Q NR U wwQ w J1me 1958 E F. w. DOERING ETAL 2,839,954

DEVICE FOR DEFORMING ONE OF A PLURALITY OF INTERFITTING PARTS TO LOOK SAID PARTS TOGETHER Filed Dec. 8, 1953 3 Sheets-Sheet Z5 J. 6. Mon/so f. A, M' ATTORNEY ow m V\ on x IAI QM (4n mm mm Unit d S a P t ffi 2,839,954 Patented June 24, 1958 DEVICE FOR DEFORMING ONE OF A PLU- RALITY 0F INTERFITTING PARTS T0 LOCK SAID PARTS TOGETHER Fred W. Doering, Cicero, John P. Jones, Chicago, and

James C. Morison, La Grange, lll., assignors to Western Electric Company, Incorporated, New York, N. Y., a corporation of New York Application December 8, 1953, Serial No. 396,874

Claims. (Cl. 78"1) This invention relates to a device for deforming one of a plurality of interfitting parts to lock said parts to-,

gether and more particularly to a tool for supporting a pair of apertured plates with a wire threaded through perforated tabs on the plates and for flattening the wire Another object of the invention is to provide a device for supporting a pair of plates having perforated tabs. with the end of a U-shaped wire passing therethrough and for flattening the wire on opposite sides of the tab to secure the wire thereto and formoving the wire longi tudinally relative to the platestopermit the flattening of said wire' at different places thereon. V p I One type of device illustrating certain features of the invention may include agcentral block or punch holderand a pair of end blocks or punch holders mounted on opposite sides of said central block for movement toward and away therefrom for receiving between the central and end blocks a pair of apertured plates having sets of per portions of a U-shaped tail wire 18 to a pair of wedge Fig. 2 is an end elevational view of the device showing the wedge plates and wire in assembled position thereon and the end punch holders in open position in full lines and in closed position in dotted lines;

Fig. 3 is a vertical cross-sectional view through the device taken on the lines 3-3 of Figs. 1 and 6;

Fig. 4 is a plan sectional view taken on the line 4-4 V of Figs. 3 and 6, and showing the lower punch holder;

Fig. 5 is a plan sectional view taken on the line 5-5 of Figs. 3 and 6;

Fig. 6 is a vertical longitudinal sectional view taken on the line 6--6 of Fig. 5 showing the wedge plates and tail wide parts thereon, and the movable end punch holders in their closed positions before they have deformed the wire;

Fig. 7 is a view similar to a portion of Fig. 6 showing parts thereof in a dilferent position and the wire after it has been deformed;

Fig. 8 is a side elevational view of the tail wire and wedge plates in assembled relation;

Fig. 9 is a plan view of a portion of the wedge plate and tail wire in one position of the assembly thereof;

Fig. 10 is a view similar to Fig. 9 showing the wire in a different position;

Fig. 11 is a vertical longitudinal section through the wedge plate and the tail wire taken on the line 1111 of a Fig. 10; and

Figs. 12 and 13' are detailed cross-sectional views taken on the-lines 12-12 and 13 -'-13 of Fig. 11. V

The present device 1 5-'is designed to securethe end plates 20 to form 'a component of a cable supporting device or multiple drop wire clamp. Each of the wedge plates 20 has aset of three tabs 22 punch-formed thereon in predetermined uniform spaced relation to each other along the centerlineof the plate, each tab 22 being 1 disposed at right angles to the plate and having a perfoforated tabs" thereon and the ends of .a" U-shaped wire" threaded through said perforated tabs. The central block has a set of punches on opposite sides thereof adapted to fit through the apertures in thetplates and engage one side of the wire, and the end blocks have a set of punches aligned with the punches onthe central block for engaging the oppositesides'of thewire, wherebythejdevice, with the parts in position between the blocks; may be placed in a press and the press actuated to impart move-.

ment to the punches to flatte n portions of the wire and form lateral projections thereon engaging one side of 7 some of the tabs. A handle on the main block. on which 7 the looped Wire is supported has alrnovable end portion which is camactuatedfrom afirstposition to a second position to move the wire longitudinally from a first to a second predeterminedposition relative to the plates and to cause the projections on the wire'to be moved from engagement with one side of some of the tabs into engagement with the other side of other tabs, after which the device may be again appliedto the punchpre'ssjzand actuated to cause the formation of a second set o'f lateral projections on the wire inengagement withsaid one side of the tabs for securing the wire to the plates.

r .65 Other objects and advantages of the inventi0n will be-l come apparentby reference to the following detailed de 1 scription and the accompanying drawings illustrating a" preferred embodimentthereof, in-which v iFiggl is a plan. view of the device with the wedge plate and tail wire' parts. assembled thereon and showing the" device .with the wire shifting' head in its extended position; 3

ration 24 pun'ched therein substantially tangent with the face of the plate. A series of apertures 26 are thus formed in" the wedge plate 20 by the punching of the 'tabs 22- therefrom and an additional circular aperture 28 is punched in the plate in alignment with the apertures 26 and spaced from the adjacent aperture 26 a distance equal to the distance between the apertures 26.

The ends of the U-shaped tail wire 18 are inserted through the perforations 24 in the tabs 22, of the pair of wedge plates 20 with the ends of the wires extending through and spaced from the endmost tab 22, as indicated in Fig. 9. The ends of the wire 18 are then deformed to form fiattened'portions 30 having flat surfaces 131 engageable with one faceof the wedge platesand having laterally extending shoulders 32 engageable with the end tab 22. The tail wire 18 is also deformed adjacent to two of thetabs'22 on each plate 20 to form flattened portions 33 having lateral projections with shoulders :34

engaging one side of'the tabs. The tail wire 18 is then moved longitudinally to'cause the flattened portions 33 to move from engagement with said one side of some of the tabs 22 into engagement with the; opposite sides of other tabs 22 and to cause the flattened portions 30 to engage the other side of the end tabs 22 (Fig.. 10)',.after which the wire is again deformed to provide flattened portions 35, the shoulders 36 of'which engage a pair of the tabs 22 on said one side oneach of the plates 20. With the flattened portions 30, 32, and35'engaging and rotary frnovement relative thereto,

theme; ',15 0 P $Q a nnal. block orfa pun gjti faces 49 and 50 of the block 40. The block 40- extends from oneface of and is secured to or formed integral with. a plate 53 (Figs- 2 and 3), the ends of which extend in opposite directions beyond the block 40 and are recessed to form a pair of hinge lugs 55 for receiving therebetweenrhinge lugs 56 formed on a pair of end blocksor punch holders 57. Hinge pins 59 pass'through bores 60 in the lugs 56 and through slots 61-in the lugs 55 for supporting theend blocks 57 for pivotal movemerit about the pins 59 and for limited rectilinear movement toward and away from the block 40. The blocks 57; may thus'be oscillated to and from open and closed positions, shown in full lines and in dottedlines, respectively, in Fig. 2, and when in closed position, the end blocks 57 may be moved toward each other and the central block 40 therebetween. The forward surfaces 63 on the lugs 55 engage flat surfaces or shoulders 64 on the end blocks 57 and serve as guidesfor guiding the blocks 57 for movement toward the block' 40in parallel relation thereto. Each of the blocks'57 hasa plurality of recesses 65 forreceiving a set of punches 66, '67 and 68 aligned and cooperable with the pairs of punches 46, 47 and 48. on the central block 40 for forming the flattened portions, 30, 133 and 85pm the tail wire 18., v i r p I l ;jhandle 41 engages a flat surface 83 on the portion 78 of The ends of the punches 66 311Cl67 and the ends ofthe punches 46 and 47 are flat and of apredeterminedwidth and are disposed parallel to the faces of the blocks 57 and'40, respectively. Theend surfacesrof the punches 68 are disposed. obliquely and cooperate with the flat ends of the punches '48, which are disposed parallellto the faces 49 and 50 of the block40 In closed position,

. the blocks 57 have outwardly directed parallel faces 69-969, which arefspaced 'frorn the ends of the hinged, lugs 55'and are engageable with pressure. applying mem-.. bers, such as is found in presses for imparting movement to the blocks 57 toward each other and the central block 40. H I i The wedge plates 20. are adapted to be positioned'on the block 40 in engagement with'the opposite faces 49 and'50 thereof and with the punches 46 and 47 extending througha pair of apertures 26 in.the plates 20 and the punches 48 extending through the apertures 28, as shown in Figs. 6 and 7. The tail wire 18 fits around and is supported on the handle 41 of the devicein a predetermined position longitudinally relative to the wedge. plates 20, as shown in Fig. 6. With the wedge p1afes2 and the tail wire 18 in ass'embledrelation on the block40 andthe handle 41 ofithe device 15 as shown in thecnd blocks 57 are moved from-their open 7 to their: closed positions, as shownyin Fig. 6 and in dotted lines. in Fig. 2, with the punches 66,67 and 68 thereof in engagement with the end portions of the. wire 18,.

The device 15 :with. the parts 18,and 20 therein may then be placed in a press 100. and the press actuated. to

cause'the blocks 57 and to move toward oneanother and compress the end; portions of thefwire 18 between the pairs of opposing dies 4666, 47- 67, and 48-68 to deform the wire :therebetween and form'the flattened portions 33'33.. and 30. The ends of the punches 66 and 67 engage-one side of a pair of the tabs j2 2 on each plate 1 20 'and the ends of a .pair of thitabsg22 oneach platelfit into, mmgmenapntmas of the recesses. 65.

against movement to the left, as-vieWed' inFigffif. Rece s'sesj70' are provided inthe blocks 57 for receiving thethir'd" tab 22 on the wedge plates "20: The'cooperatih gjpunches formed, in the blocks? 571'andfh6ld the plates 46, 66 and '47, 6'7 engage-and press opposite sidsof' the wire 18 toward the center thereof to form the flat laterally extending portions 33 along the horizontal central portion of the wire. The outer faces of the punches 48 are substantially flush with the face of the wedge plates 20 during the wire-flattening operation, as shown in Fig. 7, and the end of the punches 68 are positioned for cooperation therewith to press the ends of the wire and form the flattened portions 30 with one face thereof in the plane of the face of the plate 20.

On completion of the formation of the flattened portions 30 and 32 in the tail wire 18, the tail wire is moved longitudinally to disengage the flattened portions 33 from i one side of a pair of tabs 22 and to move them into engagement with opposite sides of the adjacent tabs 22 prior to the second operation of forming a pair of flattened portions 35 on the tail Wire. Means are provided for longitudinally moving the tail wire 18 relative to the plates 20, which includes a head 72 forming a section of the handle 41 and mounted for movement relative to the handle 41 to and from a retracted position shown in Fig. 6 and an extended position shown in Fig. 1. The handle 41 and the head 72 thereof are provided with grooves 73 and 74, respectively, for receiving and supporting the tail wire 18 therein; The head 72 is fixed to one endof a rod 76, which is slidably supported in a longitudinal bore 77 in the handle 41 and has an enlarged in termediate portion 78 slidable in an enlarged portion 79 of the bore. 77. A spring 80 interposed between theenlarged portion 78and an apertured plug 81 threaded in the end of the bore. 77 moves the rod 76 and the head 72'to its forward position and yieldably maintains, it in said: position. A pin- 82 disposed transversely of the the rod topre'vent the rod 76 and the head 72 thereon from turning. The other end of the rod 76' is engageable with a-cam surface 83 of a cam member 84 disposed in aslot 85 and oscillatable about a pin 86 in the handle tracted position, .the head 72 serves to position the tail 'in engagement with the other sides ofsome of the tabs 22 of the wedge plates. The device 15, with the parts thereof'in this position is again placed in a punchpress andthe punch press actuated to bump the device and cause relative movement of the blocks 40 and 57 and thereby effect the formation of flattened portions 30 with the laterally projectingshoulders thereof in engagement with one side of a pair of tabs- 22 on each plate 20. On completion of the second forming operation, the tail 7 wire is securely attached to the plates 20 and the device '15 may be opened and the tail wireand wedge plate asse'rn'bly removed therefrom. U V j .It is to be understood that the above-described arrangementsaresimply illustrative of the application of theprinciples of the invention. Numerous other arrangements may be readily devised by those skilled'in the art which will embody'tlie principles of the invention and fall within the spirit and scope thereof. t i s i What'is claimed is:-'

l. :A device for deforminga U-shaped par'tof a plural- .iity'o'f interfitting parts to secure jsaid' U s'hapedpart to theother parts" thereofcomprising a first holder having" twosets of punches disposed inopp'osite directions, a'pair of second holders each having a set of punches cooperable with a set of the punches on said first holder for deforming portions of said U-shaped part, means mounting said second holders on opposite sides of said first holder and for movement of said holders and the sets of punches toward one another and with portions of said second holders engageable with a pair of pressure applying members for moving said second holders toward each other, means on said holders for supporting the interfitting parts therebetween in a first position relative to each other and for holding said other parts against movement in one direction, and means for moving said U-shaped part relative to said other parts to dispose said parts in a second position relative to each other.

2. A device for securing the ends of a U-shaped wire to a pair of wedge plates to form a component of a cable clamp wherein the plates have a plurality of apertures and a plurality of tabs extending'substantially perpendicularly therefrom and wherein the end portions of the U-shaped wire are threaded through the perforated tabs, said device comprising a first holder having a pair of opposed parallel faces engageable with said wedge plates and having a set of punches projecting from each of said faces and adapted to extend into the apertures in said plates and into engagement with one side of the end portions of the U-shaped Wire, a pair of second holders disposed on opposite sides of said first holder and each having a set of punches engageable with the other side of said wire and aligned with the punches on said first holder for deforming portions of said wire, means for mounting said punch holders for movement toward and away from one another and with portions of the second holders engageable with a pair of relatively movable pressure applying members, whereby said punch holders with the plates and wire disposed therebetween may be placed in a press and actuated to cause the punches to deform the wire.

3. A device for securing the ends of a U-shaped wire to a pair of wedge plates to form a component of a cable clamp wherein the plates have a plurality of apertures and a plurality of tabs extending substantially perpendicularly therefrom and wherein the end portions of the U-shaped wire are threaded through the perforated tabs, said device comprising a first holder having a pair of opposed parallel faces engageable with said wedge plates and having a set of punches projecting from each of said faces and adapted to extend into the apertures in said plates and into engagement with one side of the end portions of the U-shaped wire, a pair of second holders disposed on opposite sides of said first holder and each having a set of punches engageable with the other side of said wire and aligned with the punches on said first holder for deforming portions of said wire, means for mounting said punch holders for movement toward and away from one another and with portions of the apertures in said plates and into engagement with" the second holders engageable with a pair of relatively movable pressure applying members, whereby said punch holders with the plates and wire disposed therebetween may be placed in a press and actuated to cause the deformation of the wire, a handle extending from said first holder for supporting the U-shaped wire and positioning the end portions thereof in a predetermined first position relative to said plates, and means on said handle for moving said wire to a second position with the end portions thereof in a second predetermined position relative to the plates.

4. A device for securing the ends of a U-shaped wire to a pair of wedge plates to form a component of a cable clamp wherein the plates have a plurality of apertures and a plurality of tabs extending substantially perpendicularly therefrom and wherein the end portions of the U-shaped wire are threaded through the perforated tabs, said device comprising a first holder having a pair of opposed parallel faces engageable with said wedge plates and having a set of punches with ends thereof projecting from said faces and adapted to extend through the apertures in said plates and into engagement with one side of the end portions of the wire, a pair of second holders disposed on opposite sides of said first holder and having opposed outwardly directed faces against which pressure may be applied to effect movement of the holders towards each other, each of said second holders having a set of punches engageable with the other side of the wire and cooperable with the punches on said first holder for flattening portions of said wire, means on said first holder for mounting said second holders for movement toward and away from one another whereby said device with the plates and U-shaped wire disposed between said first and said second holders maybe placed in a press and the press actuated to move said holders toward each other to cause the flattening of portions of said wire, a handle extending from said first holder and having an end section mounted for movement to and from a retracted and an extended position and engageable with a portion of said U-shaped wire for moving it longitudinally from a first position to a second position relative to the plates, and means on said handle for actuating said end section from said retracted position to said extended position.

5. A device for securing the ends of a U-shaped wire to a pair of wedge plates to form a component of a cable clamp, wherein the plates have a plurality of apertures and plurality of tabs extending substantially perpendicularly therefrom and wherein the end portions of the U-shaped wire are threaded through the perforated tabs, said device comprising a first holder having a pair of opposed parallel faces engageable with said wedge plates and having a set of punches with ends thereof projecting from said faces and adapted to extend through one side of the end portions of the wire, a pair of second holders disposed on opposite sides of said first holder and having opposed outwardly directed faces against which pressure may be applied to effect movement of the holders towards each other, each of said second holders having a set of punches engageable with the other side of the wire and cooperable with the punches on said first holder for flattening portions of said wire, means on said first holder for mounting said second holders for movement toward and away from one another whereby said device with the plates and U-shaped wire disposed between said first and said second holders may be placed in a press and the press actuated to move said holders toward each other to cause, the flattening of portions of said wire, a handle extending from said first holder and having a movable end section engageable with a portion of said U-shaped wire for moving it longitudinally from a first position to a second position relative to the plates, a plunger slidably mounted in said handle for supporting said end section for movement to and from retracted and extended positions, resilient means for moving said end section to and yieldably maintaining it in said retracted position, and cam means mounted on said handle for moving said plunger and said end section from' said retracted position to said extended position.

References Cited in the file of this patent UNITED STATES PATENTS Rundblad et al. May 4,1954

Images