Патент USA US3041636код для вставки
July 3, 1962 K. J. BATCHELLER ETAL 3,041,619 DETENT FOR CRIMPING MACHINE 2 Sheets-Sheet 1 Filed June 6, 1961 88M 56 W 90 INVENTORS KENT J. BATCHELLER DANIEL R.McDOUGALL ATTORNEYS July 3, 1962 K. .1. BATCHELLER ET AL 3,041,619 DETENT FOR CRIMPING MACHINE Filed June 6, 1961 2 Sheets-Sheet 2 Til FIG?) INVENTORS KENT J. BATCHELLER Y DANIEL R. Mc DOUGALL B ATTORNEYS $341,619 United States, Patent-:0 ” ICC 1 Patented July 3,. 1962 ' 2 periphery in which theroller 72 engages to‘ rock the disk 3,041,619 DETENT FOR CRMING MACE-ENE ‘ Kent J. Batcheller, Newton, and Daniel R. McDougall, Salem, Mass, assignors to Kent Mfg. ‘Cor-11., Newton Upper Falls, Mass, a corporation of Massachusetts ' Filed June 6, 1961, Ser. No. 115,161 4- Claims. to]. 1-177) as the plunger 14 reciprocates and thereby to reciprocate the pawl 54. The pawl '54 is'pressed down by aspring 66 so that the tooth 56 bears on the track 40' but can slide over the next connector member on the track when the pawl is retracted so as to be position to push the next connector member onto the anvil when the pawl is hnext advanced. For reliable operationof the, machine it is necessary that the strip of connector members be ' This invention relates to an improved detent for ,a machine for crimping electric connector members on 10 held ?rmly while the pawl is being retracted'so that its tooth 56 will engage behind the next connector‘ mem~ the ends of wires. A machine of this kind is illustrated ber 32 which becomes the leading member of the ‘series when the completion of the downward stroke of the, plunger 14 severs the crimped connector member from series, customarily ?ve hundred feet in length. The 15 the strip 34. It is also important that the strip be re strained from being projected beyond its proper position series is fed into a crimping machine arranged to receive on the anvil when advanced by the sudden forward move the stripped end of an insulated wire and operable to and described in U.S. Patent No. 2,930,044. For rapid and economical assembling of ‘wires and electric con nector members, the latter’ are’ supplied in connected crimp the wire-gripping portion of the leading connector “ _ ment of the pawl 54. In earlier machines of this kind member in the series on the inserted end portion of a a drag shoe 80 has been employed to be pressed fric member ‘from the series. spring '82 within a vertical slide 83 which carries the shoe 80 and is slidable in suitable guideways in the frame wire and at the same time to sever the leading connector 20 tionally on a portion of the strip 34 by a compressed The series is then advanced just enough to bring the next leading member into posi 12. The spring 82 presses a plunger 84 upward against tion to be crimped on the end portion of another wire the cam surface'86 of a turn button 88 mounted on the inserted for the purpose. The feeding of the series is done by a pawl which reciprocates in step with the rise 25 frame 12. As indicated in FIGURE 1, the cam surface 86 is such that by turning the turn button 88, the plunger and descent of the crimping tool. After a forward move 84 can be allowed to move upward sufficiently to relieve ment of the pawl to move the leading connector member the pressure of the spring 82 downward on the slide 83 into position to be crimped, it is important that the series and the shoe ~80‘ carried thereby. _ . be de?nitely held against any reverse movement when the pawl is retracted for the next feeding stroke. This 30 According to the present invention a tooth 90 is pro vided on the‘bottom of the shoe 80 and located in line is done by means of a detentacting on a portion of the with the necks 36 which connect the connector members series near the leading connector member. It is an object 32 to the continuous strip 34. The_tooth 90 projects of the present invention to provide an improved detent below the bottom face of the shoe 80 a distance slightly for a crimping machine of the kind hereinafter described. For a more complete understanding of the invention, 35 less than the stock thickness of the necks 36 and strip 34-. For example, a commonly used ‘gauge of metal for reference may be had to the following description thereof, electric connector members 32 is 0.021”. For use on and to the drawings, of which a series of such connectors a shoe 8% with a tooth 90 FIGURE 1 is a front elevation of a crimping machine having a detent embodying the invention; FIGURE 2 is an end elevation of the same; FIGURE 3 is a section on the line 3-3 of FIGURE 1; FIGURE 4 is an enlarged perspective view of the detent shown in the other ?gures; and FIGURE 5 is a perspective view of part of a strip of electric connector members: FIGURES l and 2 illustrate a crimping machine for electric connector members, this machine having a base extendingdown .018" to .020" may be employed. The 40 forward face of the tooth W is perpendicular to the ‘track to catch behind successive necks 36. The rear face of the tooth 90 is sloped so that when the series of connector members is fed forward by the pawl 54, the neck 36 which is immediately behind the tooth 90 can cam it up enough to pass under it, whereupon the shoe snaps downward for resumed frictional engagement with the portion of the continuous strip 32 beneath it. Since the leading connector member must be accurately . 10 and an upright frame 12 preferably integral with the placed on the anvil when the plunger carrying the crimp tically slidable. The plunger has an upper portion 16 50 ing tools descends, and since at that moment the tooth base. At one end of the frame 12 a plunger 14 is ver 90 should be engaged against the rear edge of a neck 36 in the series, it is necessary for the tooth 90 to be adapted to be secured in a power press by which it is to be reciprocated to drive crimping tools 24, 26, carried by the plunger, down on the wire-gripping elements of an electric connector member supported on a suitable anvil 28 mounted on the base 10. The machine is designed to operate on electric con nector members 32 which are supplied to it in a series the units of which are joined to a continuous strip 34 by short necks 36. One form of connector member is shown accurately spaced from the anvil, such spacing depend 55 ing on the distances between the lines of centers of suc cessive connector members in the series. As such dis tances can and do vary in series of different connector members, the spacing of the shoe 80 from the anvil must be adjusted accordingly. At present most connector members of the type illustrated are made with lines of in FIGURE 5 by way of example. The leading portion 60 centers spaced either 0.440” or 0.530". Hence, the of the strip or series of connector members approaches the anvil 28 on a track 40 which may be a separate mem ber removably secured to the base 10*. As the machine shoe 80 is constructed to be secured to the slide 83‘ in either of two positions at corresponding distances from the anvil. For this purpose the shoe is removably se~ cured against the lower part of the slide 83 and is pro step by means of a pawl 54 having a tooth 56 which rides 65 vided with a horizontal rabbet groove 92 in which is in a shallow central channel 58 in the track 40‘ and en slidably ?tted a ridge 94 on the slide 83-. The shoe 80 gages behind the leading connector member in the series is secured to the slide 83‘ by a screw 96 which passes to push such member onto the anvil 28. The pawl 54 through a horizontal slot 97 in the shoe and into a is pivotally attached to a disk 62 which is rocked about its axis by the reciprocation of a roller '72 mounted on 70 threaded hole in the slide 83. The screw 96 has a head 98 which ?ts into either of two countersinks 100', 102 an arm 74 carried by the plunger 14. The disk is rock which are carefully located to ensure proper spacing of ably mounted on the frame 14 and has a recess 76 in its is operated, the strip is fed along the track 4t} step-by 3,041,619 r the tooth 90 from the anvil 28 for connector members having either spacing between lines of centers. ranged to catch behind a part of a connector member in a series on said track to hold said series positively against retrograde movement on said track, and releas able spring means pressing said shoe down on said ' When a fresh series of connector members is to be in~ iserted into the machine, the. turn ‘button 83. is turned. to relieve the 82. . Toilift the ‘shoe so that the’tooth track. be clear of the track 40ito facilitate the insertion _ ior'removaltof ,a series of, connectors, a springi104 in- ' stalled in a bore in the base-10 directly below the slide .7 ' . ~ ~ 7 t V 3. Mechanism as described in claim 1, said shoe having 10 a horizontal rabbet groove ?tted by a portion of the vertical member of detent, said shoe having a horizontal slot therethrough with a pluralityof countersinks, and 'a screw passing through said slot and threaded into said vertical member, said screw having a head ?tting into justment or removal of a series‘ of connector members under the shoe.‘ - of positions of horizontal adjustment. 83 so that it presses against the bottomnof the @slide. ' When the spring 82 is relieved, the weaker spring 104 v, lifts _,tl1e slide 83and shoe SGitofacilitate insertion, ad '7 2. Mechanism» as described in claim 1, and means for positively securing said shoein any one of a plurality a 'i .We claim: ",1 V 1. !In'-a machine for crimping the wire-gripping por 15 any one of said countersinks to hold said shoe to said tions, of electric connectors supplied‘ thereto in a con vertical member in a selected position of horizontal ad nected series, said machine having a ‘base with, a track‘ justment. i _ thereon and an upright frame" having a vertical guideway, 4. Mechanism as described in claim 1, and spring .a detent slidable in’ said guideway, ‘said detent comprising means under said detent arranged to lift said detent when _ a. vertical member ?tted in said guideway and a shoe on the ?rst mentioned spring means is released, said member horizontally adjustable in‘ the direction of 1 ‘ the track, a small tooth on the bottom ofsaid shoe ar '20 VNo references cited. '