EP0158062B1 - Tool for crimping, cutting, pressing and the like - Google Patents

Tool for crimping, cutting, pressing and the like Download PDF

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Publication number
EP0158062B1
EP0158062B1 EP85101818A EP85101818A EP0158062B1 EP 0158062 B1 EP0158062 B1 EP 0158062B1 EP 85101818 A EP85101818 A EP 85101818A EP 85101818 A EP85101818 A EP 85101818A EP 0158062 B1 EP0158062 B1 EP 0158062B1
Authority
EP
European Patent Office
Prior art keywords
tool
pressing
toothed segment
pawl
crimping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP85101818A
Other languages
German (de)
French (fr)
Other versions
EP0158062A1 (en
Inventor
Reiner Rommel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Christine Pohle Geb Rommel Te Schweinfurt Bondsr
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT85101818T priority Critical patent/ATE36823T1/en
Publication of EP0158062A1 publication Critical patent/EP0158062A1/en
Application granted granted Critical
Publication of EP0158062B1 publication Critical patent/EP0158062B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/14—Locking means

Definitions

  • the invention relates to a tool for crimping, cutting, pressing or the like.
  • a tool head and handle levers arranged thereon for actuating the tool and an adjustable positive lock switched on between the handle levers, consisting of an inwardly directed toothed segment and a latching pawl which engages in it.
  • an adjustable positive lock switched on between the handle levers, consisting of an inwardly directed toothed segment and a latching pawl which engages in it.
  • the tooth segment is mounted in the pliers joint here, which on the one hand causes additional costs and on the other hand limits the possibilities of movement of the handle levers.
  • a certain amount of play is inevitable due to the bearing of the toothed segments. Since the latch must also be arranged so that it can move and thus necessarily has a certain amount of play, a precisely reproducible setting of the triggering or pressure point is not possible with such a tool. A precise adjustment to different workpieces is also excluded.
  • the object of the invention is to remedy these shortcomings and to provide a general-purpose tool which can be precisely adapted to a wide variety of workpieces or to the final pressure required in each case.
  • toothed segment is rigidly connected to the one handle lever and the latch is mounted in a fork which is adjustable in the other handle lever by means of a threaded pin and an adjusting nut for adjusting the pressure point in the direction of the toothed segment Locking pawl acted upon by a spring pulling it back into the locking position.
  • the two operating handles 1 and 2 are shown, which are articulated to one another and can be opened and closed for the purpose of operating the tool.
  • the two handle levers are usually pressed from sheet metal. As shown in FIG. 1, they have a U-shaped cross section that is open towards the other handle lever.
  • the handle lever 1 has at a certain distance from the pivot pin an inwardly directed tooth segment 3, which carries the toothing 4 on its outside.
  • an inwardly projecting bearing 5 is provided, in which the pawl 6 is mounted, which cooperates with the toothing 4 on the toothed segment 3.
  • the pawl 6 is provided on one side (Fig. 2) with a projecting nose 7 and a lever 8. It is freely rotatable with a bore 9 on a pivot pin 10 which is inserted into the openings 12 of a fork 11, but also extends into the elongated bearing openings 13 of the bearing 5 and serves as a guide here.
  • a tension spring 14 By means of a tension spring 14, the latch 6 is always retracted into its latched position.
  • the forced lock according to the invention can be used with all types of tools which are actuated by pivotable handle levers, for example pliers of all types and tools for crimping, cutting, eating or the like.
  • pivotable handle levers for example pliers of all types and tools for crimping, cutting, eating or the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Press Drives And Press Lines (AREA)
  • Scissors And Nippers (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Abstract

The invention relates to a tool for crimping, cutting, pressing or the like, having a tool head and gripping levers arranged on the latter for actuating the tools and also, in order to fix the final pressure required for pressing, having a positive lock which is engaged between the gripping levers and designed as a ratchet, having a toothed segment which is provided on one gripping lever and a pawl on the other gripping lever, which pawl engages in the toothed segment, with the mounting of the pawl (6) in the gripping lever (2) being adjustable in order to change the final pressure required for pressing.

Description

Die Erfindung betrifft ein Werkzeug zum Crimpen, Schneiden, Pressen oder dgl. mit einem Werkzeugkopf und an diesem angeordneten Griffhebeln zur Betätigung des Werkzeuges sowie einer zwischen den Griffhebeln eingeschalteten verstellbaren Zwangssperre bestehend aus einem nach innen gerichteten Zahnsegment und einer in dieses einrastenden Rastklinke. Ein solches Werkzeug ist bereits in der US-A-3 157 075 gezeigt. Das Zahnsegment ist hier jedoch im Zangengelenk gelagert, was einerseits zusätzliche Kosten verursacht und andererseits die Bewegungsmöglichkeiten der Griffhebel begrenzt. Darüberhinaus ist durch die Lagerung des Zahnsegmenten ein gewisses Bewegungsspiel unvermeidlich. Da auch die Rastklinke beweglich angeordnet sein muß und damit zwangsweise auch ein gewisses Bewegungsspiel aufweist, ist mit einem solchen Werkzeug eine präzise reproduzierbare Einstellung des Auslöse- bzw. Druckpunktes nicht möglich. Auch eine genaue Einstellung auf unterschiedliche Werkstücke ist aüsgeschlossen.The invention relates to a tool for crimping, cutting, pressing or the like. With a tool head and handle levers arranged thereon for actuating the tool and an adjustable positive lock switched on between the handle levers, consisting of an inwardly directed toothed segment and a latching pawl which engages in it. Such a tool is already shown in US-A-3 157 075. However, the tooth segment is mounted in the pliers joint here, which on the one hand causes additional costs and on the other hand limits the possibilities of movement of the handle levers. In addition, a certain amount of play is inevitable due to the bearing of the toothed segments. Since the latch must also be arranged so that it can move and thus necessarily has a certain amount of play, a precisely reproducible setting of the triggering or pressure point is not possible with such a tool. A precise adjustment to different workpieces is also excluded.

Aufgabe der Erfindung ist es diese Mängel zu beheben und ein allgemein verwendbares Werkzeug zu schaffen, welches an die verschiedensten Werkstücke bzw. an den jeweils erforderlichen Enddruck präzise anzupassen ist.The object of the invention is to remedy these shortcomings and to provide a general-purpose tool which can be precisely adapted to a wide variety of workpieces or to the final pressure required in each case.

Dies wird erfindungsgemäß dadurch erreicht, daß das Zahnsegment starr mit dem einen Griffhebel verbunden ist und die Rastklinke in einer Gabel lagert, die mittels eines Gewindezapfens und einer Stellmutter zur Druckpunkteinstellung in Richtung auf das Zahnsegment verstellbar im (anderen Griffhebel gelagert ist. Vorzugsweise ist dabei die Rastklinke von einer sie in die Raststellung zurückziehende Feder beaufschlagt.This is achieved according to the invention in that the toothed segment is rigidly connected to the one handle lever and the latch is mounted in a fork which is adjustable in the other handle lever by means of a threaded pin and an adjusting nut for adjusting the pressure point in the direction of the toothed segment Locking pawl acted upon by a spring pulling it back into the locking position.

Eine Ausführungsmöglichkeit ist in der anliegenden Zeichnung wiedergegeben, und zwar zeigen:

  • Fig. 1 einen Teil eines Werkzeuges zum Crimpen, Schneiden, Pressen od. dgl.,
  • Fig. 2 eine Darstellung im vergrößerten Maßstab der für die Zwangssperre erforderlichen Bauteile und
  • Fig. 3 einen Schnitt nach den Linien I-I durch Fig. 1.
One possible embodiment is shown in the attached drawing, which shows:
  • 1 shows a part of a tool for crimping, cutting, pressing or the like.
  • Fig. 2 is an illustration on an enlarged scale of the components required for the positive lock and
  • 3 shows a section along lines II through FIG. 1.

Von dem in Frage stehenden Werkzeug sind nur die beiden Bedienungsgriffe 1 und 2 wiedergegeben, die aneinander angelenkt und zum Zwecke der Betätigung des Werkzeuges auf-und abklappbar sind. Üblicherweise sind die beiden Griffhebel aus Metallblech gepreßt. Sie haben, wie in Fig. 1 eingezeichnet, einen U-förmigen Querschnitt, der nach dem anderen Griffhebel hin offen ist.Of the tool in question, only the two operating handles 1 and 2 are shown, which are articulated to one another and can be opened and closed for the purpose of operating the tool. The two handle levers are usually pressed from sheet metal. As shown in FIG. 1, they have a U-shaped cross section that is open towards the other handle lever.

Der Griffhebel 1 hat in einer gewissen Entfernung vom Gelenkzapfen ein nach innen gerichtetes Zahnsegment 3, das auf seiner Außenseite die Verzahnung 4 trägt. Am anderen Griffhebel 2 hingegen ist eine nach innen vorspringende Lagerung 5 vorgesehen, in weicher die Schaltklinke 6 lagert, die mit der Verzahnung 4 am Zahnsegment 3 zusammenarbeitet.The handle lever 1 has at a certain distance from the pivot pin an inwardly directed tooth segment 3, which carries the toothing 4 on its outside. On the other hand lever 2, however, an inwardly projecting bearing 5 is provided, in which the pawl 6 is mounted, which cooperates with the toothing 4 on the toothed segment 3.

Die Schaltklinke 6 ist auf einer Seite (Fig. 2) mit einer vorspringenden Nase 7 und einem Hebel 8 versehen. Sie lagert frei drehbar mit einer Bohrung 9 auf einem Drehzapfen 10, der in die Öffnungen 12 einer Gabel 11 eingesetzt ist, aber darüber hinaus noch bis in die länglichen Lageröffnungen 13. der Lagerung 5 hineinreicht und hier als Führung dient. Vermittels einer Zugfeder 14 wird die Rastklinke 6 immer wieder in ihre Raststellung zurückgezogen.The pawl 6 is provided on one side (Fig. 2) with a projecting nose 7 and a lever 8. It is freely rotatable with a bore 9 on a pivot pin 10 which is inserted into the openings 12 of a fork 11, but also extends into the elongated bearing openings 13 of the bearing 5 and serves as a guide here. By means of a tension spring 14, the latch 6 is always retracted into its latched position.

An der Gabel 11 sitzt weiterhin ein Gewindezapfen 15, auf den eine Stellmutter 16 aufgeschraubt ist, die sich dabei allerdings in einem Schlitz 17 des Griffhebels 2 führt, so daß durch mehr oder weniger starkes Verdrehen der Mutter 16 die Gabel 11 mit der darin gelagerten Rastklinke 6 mehr oder weniger weit zurückgezogen werden kann. Dadurch wird der Eingriffszeitpunkt der Klinke 6 in dem Zahnsegment 3, 4 und damit der Zeitpunkt des Erreichens des Pressenenddruckes verändert.On the fork 11 there is also a threaded pin 15 onto which an adjusting nut 16 is screwed, which, however, results in a slot 17 of the handle lever 2, so that the fork 11 with the latching pawl stored therein is rotated more or less 6 can be withdrawn more or less. As a result, the time of engagement of the pawl 6 in the toothed segment 3, 4 and thus the time of reaching the final pressure of the press is changed.

Selbstverständlich kann die erfindungsgemäße Zwangssperre bei allen Arten von Werkzeugen verwendet werden, die durch Verschwenkbare Griffhebel betätigt werden, also beispielsweise Zangen aller Art und Werkzeugen zum Crimpen, Schneiden, Fressen od. dgl. mit linearem Arbeitsweg, wo es darauf ankommt, das Werkzeug nicht zu öffnen oder freizugeben, so lange nicht der für die Verformung des Werkstückes erforderliche Enddruck erreicht ist.Of course, the forced lock according to the invention can be used with all types of tools which are actuated by pivotable handle levers, for example pliers of all types and tools for crimping, cutting, eating or the like. With a linear working path, where it is important that the tool is not closed open or release as long as the final pressure required for the deformation of the workpiece has not been reached.

Claims (2)

1. Tool for crimping, cutting, pressing or the like, with a tool head and hand levers arranged thereat for the actuation of the tool as well as with an adjustable constrained lock which is connected between the hand levers (1, 2) and consists of an inwardly directed toothed segment (3) and a detent pawl (6) detenting into this, characterised thereby, that the toothed segment (3) is rigidly connected with the one hand lever (1) and the detent pawl (6) borne in a fork (11), which is borne by means of a threaded spigot (15) and an adjusting nut (16) in the other hand lever (2) to be displaceable in the direction of the toothed segment (3, 4) for the adjustment of the pressure point.
2. Tool according to claim 1, characterised thereby, that the detent pawl (6) is loaded by a spring (14) drawing it back into the detent setting.
EP85101818A 1984-03-28 1985-02-20 Tool for crimping, cutting, pressing and the like Expired EP0158062B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85101818T ATE36823T1 (en) 1984-03-28 1985-02-20 TOOL FOR CRIMPING, CUTTING, PRESSING OR THE LIKE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3411459 1984-03-28
DE19843411459 DE3411459A1 (en) 1984-03-28 1984-03-28 TOOLS FOR CRIMPING, CUTTING, PRESSING OR THE LIKE.

Publications (2)

Publication Number Publication Date
EP0158062A1 EP0158062A1 (en) 1985-10-16
EP0158062B1 true EP0158062B1 (en) 1988-08-31

Family

ID=6231901

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85101818A Expired EP0158062B1 (en) 1984-03-28 1985-02-20 Tool for crimping, cutting, pressing and the like

Country Status (5)

Country Link
US (1) US4608888A (en)
EP (1) EP0158062B1 (en)
JP (1) JPS60217068A (en)
AT (1) ATE36823T1 (en)
DE (1) DE3411459A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5012666A (en) * 1989-07-24 1991-05-07 Chen Ching Wen Crimp tool with adjustable jaw
US6840078B1 (en) * 2000-08-22 2005-01-11 Hj. Martin & Son, Inc. Tool for shaping a workpiece
US9003859B2 (en) * 2011-04-01 2015-04-14 University of Alaska Anchorage Bending instrument and methods of using same
US20150158151A1 (en) * 2013-11-01 2015-06-11 Curtis Brown Ratchet adjustable locking pliers
US9421596B2 (en) 2014-04-16 2016-08-23 University of Alaska Anchorage Bending instrument and methods of using same
CN104490461A (en) * 2014-11-28 2015-04-08 江苏双羊医疗器械有限公司 Crimping pliers

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT187165B (en) * 1948-01-14 1956-10-25 Aircraft Marine Prod Inc Notching tool for making pipe connections
BE527460A (en) * 1948-01-14
US2842996A (en) * 1956-03-12 1958-07-15 Plomb Tool Company Compound leverage toggle locking pliers
US3157075A (en) * 1962-01-17 1964-11-17 Sargent & Co Plier type tool with motion-compelling mechanism
CH414497A (en) * 1964-10-23 1966-05-31 Kasper Otto Toggle clamp pliers
US3277751A (en) * 1965-05-06 1966-10-11 Sargent & Co Motion-compelling mechanism for a hand tool
DE7402999U (en) * 1973-02-12 1974-07-11 Pressmaster Ag Tool, preferably pliers, for notching or pre-pressing sleeves such as cable lugs and the like
JPS5228240U (en) * 1975-08-20 1977-02-26
US4158302A (en) * 1977-12-23 1979-06-19 Thomas & Betts Corporation Tool with full-stroke compelling mechanism

Also Published As

Publication number Publication date
US4608888A (en) 1986-09-02
DE3411459A1 (en) 1985-10-10
JPH0448587B2 (en) 1992-08-07
DE3411459C2 (en) 1987-06-19
EP0158062A1 (en) 1985-10-16
ATE36823T1 (en) 1988-09-15
JPS60217068A (en) 1985-10-30

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