EP0884137B1 - Kupplungsstück für lösbare Verbindung an Werkzeugen - Google Patents

Kupplungsstück für lösbare Verbindung an Werkzeugen Download PDF

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Publication number
EP0884137B1
EP0884137B1 EP98109971A EP98109971A EP0884137B1 EP 0884137 B1 EP0884137 B1 EP 0884137B1 EP 98109971 A EP98109971 A EP 98109971A EP 98109971 A EP98109971 A EP 98109971A EP 0884137 B1 EP0884137 B1 EP 0884137B1
Authority
EP
European Patent Office
Prior art keywords
seat
locking pin
peg
square
conical
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 - Lifetime
Application number
EP98109971A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0884137A3 (de
EP0884137A2 (de
Inventor
Klaus Mutschlechner
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.)
Intercable SRL
Original Assignee
Intercable SRL
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 Intercable SRL filed Critical Intercable SRL
Publication of EP0884137A2 publication Critical patent/EP0884137A2/de
Publication of EP0884137A3 publication Critical patent/EP0884137A3/de
Application granted granted Critical
Publication of EP0884137B1 publication Critical patent/EP0884137B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B25B13/00—Spanners; Wrenches
    • B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
    • B25B13/461—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
    • 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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/0007—Connections or joints between tool parts
    • B25B23/0035—Connection means between socket or screwdriver bit and tool

Definitions

  • the invention relates to a coupling piece, e.g. a square insert, for detachable connection to tools and / or extensions of the type with transverse to the square axis, in the square or in a coupling piece with different cross-section, sliding locking pin which in the area of Recess on each of the side inner surfaces of the insert seat Tool or the attached extension works.
  • a coupling piece e.g. a square insert
  • sliding locking pin which in the area of Recess on each of the side inner surfaces of the insert seat Tool or the attached extension works.
  • a locking pin is known from US 3,762,245 which in one Insert square is slidably supported by the extension movement a spring and the return movement through the conical or wedge-shaped end of a cathedral.
  • the locking pin can be in its extremely extended position, however not be locked in intermediate positions. It is actuated by pressure on the head of an axially displaceable dome what an efficient sealing or makes electrical insulation difficult.
  • FIG. 10, Fig. 11 is the extension of the locking pin by rotating a shaft which has an eccentric at one of its ends.
  • the on the side surfaces of the mission seat provided recesses which serve as a seat for the extended, by the Insert square protruding, balls, or pins serve, often not with the required precision are made, or different depth, width and / or Position, which affects the quality of the connection.
  • Said irregularity of the recesses is due to the fact that the Tools are often made by forging and therefore not a very one have a uniform shape, thereby centering on a lathe for the uniform execution of the recesses is difficult.
  • the invention has the task of using a square To create locking system which also on different tools Manufacturers and with different depth, width and / or position of the Recesses allows a standardized locking; furthermore the Invention the task of an actuation system for the locking mechanism create which in any operating situation the required electrical insulation and an efficient seal against dust and moisture.
  • This object is achieved in that the use of a Slidable locking pin is proposed, its stroke, for adaptation to the insert seat on the tool and to the irregularly designed ones Recesses in this seat is sufficiently wide and that the actuation system is self-locking for this locking pin and by turning a handle works.
  • the locking pin in a bore transverse to the axis of the Quadrilateral, or generally the coupling piece, stored and is by the progressive insertion of a cone into the corresponding conical, across seat extending to the locking pin axis, in locking position on the locking pin brought.
  • the actuating cone for the Locking pin is provided at the end of a mandrel which, within one, for Insert square coaxial, bore is slidable. This axial Sliding movement is loaded with a spring and is e.g.
  • the actuating mechanism enables one on the rotatable bushing To attach twist grip made of insulating material which is sufficient the fixed Insulation layer of the tool overlaps, moreover between the two Isolation parts still a sealing ring can be accommodated.
  • the invention does not preclude moving the conical end dome by a mechanism other than that described here; this applies in particular to a tool that is not subject to special requirements for electrical insulation and / or sealing against dust and moisture.
  • the mechanism described is particularly suitable for ratchet wrenches (ratchets or ratchets) for insert tools and tool extensions.
  • FIG. 1 shows a cross section according to that shown in FIG. 3 Section plane I - I through a ratchet head with inventive Insert square, the cutting plane being the axis of the insert square and that of the locking pin, which is shown in the extended position.
  • FIG. 2 shows an identical cross section through a ratchet head inventive square as in Fig. 1, with the locking pin in retracted position.
  • FIG. 3 shows a cross section through a ratchet head Square insert according to the invention, according to the one shown in FIG. 1 Section plane III - III which contains the axis of the square insert runs perpendicular to the axis of the locking pin.
  • the approach 1 which is moved by the lever of the ratchet wrench, is rotatable with its tooth crown 1c inside the head part 10 of the ratchet lever stored.
  • the tooth crown 1c is through the ring 10a, in which the bearing bush 13 is used for the approach 1, kept in their storage; at the The opposite side is the mounting through the narrower bore on the head 10 of the ratchet lever.
  • the entire ratchet lever including the head part 10, the ring 10a and the bushings 9, 13 is made with a layer 14 Insulation material covered.
  • the approach 1 ends at the opposite end with the tooth crown 1c in one Square insert 1a which has a transverse blind hole 1b for the Includes the locking pin 2b sliding therein.
  • Approach 1 and the Insert square 1a have an axial blind hole 1d with a larger one Diameter and 1e with a smaller diameter.
  • the bore is an axially displaceable 3c mandrel 3 which a has conical end 3a, which in the corresponding conical seat 2b Locking pin 2 engages.
  • the taper of the seat 2b and the tapered end 2a is dimensioned such that a self-locking effect, in relation to the Sliding back 2c of the locking pin 2 is reached as soon as this Force components are exposed which arise from the deduction loads on attached tool result, by the engagement of the ball dome 2a of the Locking pin 2 is held in one of the recesses on the insert seat.
  • said Conicity is also such that self-locking in everyone Extending position of the locking pin 2 takes place independently of the depth, width and / or position of the recess in which engages the locking pin and thereby the opposite surface of the Square to the corresponding surface of the operational seat on the patch Tool presses.
  • This spring 6 is inserted over the actuating pin 5 which, by means of two semicircular shells 4, with the mandrel 3 is coupled.
  • the shells 4 form together with the protruding edges 3b and 5b, a clutch for the purpose exclusive transmission of the longitudinal movement 3c to the mandrel 3, without Transmission of the rotary movement 11a and the movement of the tool itself.
  • the rotary movement 11 a is transmitted to the pin 5 by means of the rotary handle 11 which a coaxial, provided with vertical guide grooves, bushing 12 connected is;
  • the protruding parts of the pin 5 engage in the guide grooves a transversely penetrating, firmly connected mandrel 8 in the end region.
  • the axial sliding path 3c of the mandrel 3 is dimensioned so that the cone 3a is not is completely pulled out of the seat 2b on the locking pin 2, causing this is retained in its seat 1b in the insert square in each actuation phase.
  • the invention does not rule out the use of actuation mechanisms other than those shown here, although the ones shown here are particularly suitable in the case of tools which are used in the electrical field because they ensure the insulation properties throughout the entire range of actuation phases.
  • the cone 3a can also be replaced by a wedge which engages in a corresponding seat on the locking pin 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Clamps And Clips (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
EP98109971A 1997-06-11 1998-06-02 Kupplungsstück für lösbare Verbindung an Werkzeugen Expired - Lifetime EP0884137B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBZ970032 1997-06-11
IT97BZ000032A IT1292554B1 (it) 1997-06-11 1997-06-11 Quadro di trascinamento per attrezzi ad accoppiamento bloccabile

Publications (3)

Publication Number Publication Date
EP0884137A2 EP0884137A2 (de) 1998-12-16
EP0884137A3 EP0884137A3 (de) 2001-05-09
EP0884137B1 true EP0884137B1 (de) 2003-09-03

Family

ID=11346806

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98109971A Expired - Lifetime EP0884137B1 (de) 1997-06-11 1998-06-02 Kupplungsstück für lösbare Verbindung an Werkzeugen

Country Status (4)

Country Link
EP (1) EP0884137B1 (US06559137-20030506-C00039.png)
AT (1) ATE248685T1 (US06559137-20030506-C00039.png)
DE (1) DE59809453D1 (US06559137-20030506-C00039.png)
IT (1) IT1292554B1 (US06559137-20030506-C00039.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022113887A1 (de) 2022-06-01 2023-12-07 Wiha Werkzeuge Gmbh Isoliertes Drehwerkzeug

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10036224C1 (de) * 2000-07-26 2002-06-13 Uwe Spaeth Verbindungsstück zwischen einem Vorwerkzeug und einem Folgewerkzeug
TWI530368B (zh) * 2014-10-03 2016-04-21 史丹利七和國際股份有限公司 棘輪扳手

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2954994A (en) * 1957-12-23 1960-10-04 Chicago Pneumatic Tool Co Socket retainer for rotary power tools
US3180435A (en) * 1962-05-25 1965-04-27 Chicago Pneumatic Tool Co Socket retainer for impact wrench
US3762245A (en) * 1971-04-08 1973-10-02 Litton Industrial Products Quick release and speeder for socket wrench
US4794828A (en) * 1983-12-19 1989-01-03 Snap-On Tools Corporation Quick release mechanism for ratchet wrench
DE8909646U1 (US06559137-20030506-C00039.png) * 1989-08-11 1990-12-06 Werkzeugfabrik G. Adolf Lemp & Co, 5630 Remscheid, De

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022113887A1 (de) 2022-06-01 2023-12-07 Wiha Werkzeuge Gmbh Isoliertes Drehwerkzeug
DE102022113887B4 (de) 2022-06-01 2024-04-25 Wiha Werkzeuge Gmbh Isoliertes Drehwerkzeug

Also Published As

Publication number Publication date
EP0884137A3 (de) 2001-05-09
ITBZ970032A1 (it) 1998-12-11
ATE248685T1 (de) 2003-09-15
DE59809453D1 (de) 2003-10-09
EP0884137A2 (de) 1998-12-16
IT1292554B1 (it) 1999-02-08
ITBZ970032A0 (US06559137-20030506-C00039.png) 1997-06-11

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