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Manual crimping pliers
| Details |
Inventors: Schmidt, Dieter;
Assignee: HTS-Elektrotechnik GmbH (Neunkirchen, DE)
Primary Examiner:
Assistant Examiner:
Attorney, Agent or Firm:
In crimping pliers for connecting contact elements to electrical conductors, which crimping pliers consist of a grip, a retaining plate, which is fixed to the latter and has a lateral recess accommodating the contact elements, on the upper side of which recess cutouts are made which interact with the crimping stamps which project at the upper side from a workplate displaceably guided in the retaining plate, on which workplate a hand lever is pivoted, the tightening movement of which displaces the workplate relative to the retaining plate and moves the crimping stamps into the open cutouts, a housing is fixed to the workplate in order to automatically feed a sheet-metal strip, which supports contact elements at intervals and has mating holes, and a linkage mechanism is pivoted on the hand lever. Moreover, a feed piece, which can be displaced along a longitudinal groove against the force of a feed spring and carries a lowerable dog for engaging in one of the mating holes, and a locking device, which retains the feed piece in the tensioned position of the feed spring and can be triggered by a linkage mechanism and a triggering unit, are provided in the housing. At the same time, the feed piece, during the tightening movement of the hand lever, is brought into its end position and locked in this position. During the return movement of the hand lever, the locking device and the feed piece are then released. |
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DETAILED DESCRIPTION I claim: 1.
Manual crimping pliers for connecting contact elements to electrical conductors, the contact elements being supported on a carrier strip having holes located between adjacent contact elements, the manual crimping pliers including: a grip, a retaining plate firmly connected to the grip and including a lateral recess for accommodating the contact elements, a stamping plate supported at an upper side of the recess, said stamping plate having cutouts open towards the recess, a workplate displaceably guided on said retaining plate, said workplate having an upper side supporting crimping stamps, a hand lever disposed opposite said grip and having one end pivotably connected to the retaining plate and to a support for said carrier strip, said pliers further comprising: a housing fixed to the workplate and including an upper edge, a groove disposed substantially parallel to said upper edge, and a feed spring disposed in the groove, the upper edge of said housing defining said support for said carrier strip, linkage means pivotably connected between said hand lever and said housing, a feed piece, displaceably supported in said housing groove for displacement at least toward said recess in a feeding direction, and carrying a dog for engaging in one of the holes in the carrier strip, locking means, mounted in said housing, for releasably retaining said feed piece in a first position in which said feed spring is tensioned, and triggering means for releasing said locking means, and thereby said feed piece from said first position, said triggering means being actuated by said linkage means, whereby upon pivoting movement of said hand lever away from said grip, simultaneously said feed piece, said dog and said carrier strip are biased away from said first position toward said recess so that crimping of said contacts on said conductors can be effected, and thereafter when said hand lever is pivoted toward the grip, said locking means is actuated as said feed piece is moved back to its first position in said longitudinal groove
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