EP0747173A1 - Schranbenschlüssel - Google Patents

Schranbenschlüssel Download PDF

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Publication number
EP0747173A1
EP0747173A1 EP94913474A EP94913474A EP0747173A1 EP 0747173 A1 EP0747173 A1 EP 0747173A1 EP 94913474 A EP94913474 A EP 94913474A EP 94913474 A EP94913474 A EP 94913474A EP 0747173 A1 EP0747173 A1 EP 0747173A1
Authority
EP
European Patent Office
Prior art keywords
wrench
open end
angle
degrees
side length
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.)
Withdrawn
Application number
EP94913474A
Other languages
English (en)
French (fr)
Other versions
EP0747173A4 (de
Inventor
Ruixian Chen
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.)
Individual
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
Publication of EP0747173A4 publication Critical patent/EP0747173A4/de
Publication of EP0747173A1 publication Critical patent/EP0747173A1/de
Withdrawn legal-status Critical Current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
    • 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
    • B25B13/02—Spanners; Wrenches with rigid jaws
    • B25B13/08—Spanners; Wrenches with rigid jaws of open jaw type
    • 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
    • B25B13/48—Spanners; Wrenches for special purposes
    • B25B13/481—Spanners; Wrenches for special purposes for operating in areas having limited access

Definitions

  • the invention is related to a manual tool applicable to various hexagonal fastening pieces.
  • the object of the invention is directed to solve the above problems, and provides a type of solid wrench, whose main technical specifications are satisfied with the international standards, for more convenient to be inserted into working position, without damaging the corner of the fastening pieces and slipping, and for easy to use in narrow spaces less than 30 degrees.
  • Said solid wrench has obvious advantages of manufacturing easily, lower cost, and high comprehensive evaluation index, so that it is easy to be put into production and application.
  • the technical features of the solid wrench are characterized in that a special geometrical shape is designed at its open end and two bearing edges for providing two working positions, each angled relative to the other by an angle of ⁇ in the same rotating direction, in which ⁇ ranges from 10 to 22 degrees; in that the intake of workpieces is made up of two inclined surfaces.
  • Fig. 1 shows said geometrical shape of working positions of the solid wrench in accordance with the preferred embodiment of the invention.
  • Fig. 2 shows said geometrical shape of working positions of the solid wrench in accordance with another preferred embodiment of the invention.
  • the solid wrench according to the preferred embodiment of the invention has two working positions, each angled relative to the other by an angle of ⁇ in two rotating directions.
  • the broken lines of the wrench's open end is formed as follows:
  • YY' is the central line of the wrench's open end.
  • the original position of the regular hexagon ABCDEF which represents a hexagonal fastening piece is shown in Fig. 1, and its center is 0.
  • the solid wrench according to another preferred embodiment of the invention has two, working positions, each angled relative to the other by an angle ⁇ in one rotating direction.
  • the broken line of the wrench's open end is formed as follows:
  • 00' is given as one eighth of the side length and the angle ⁇ as 15 degrees, as shown in Fig. 2. Formation of the broken line at the open end of the wrench is illustrated in Fig. 2. A relax angle ⁇ is provided to avoid damaging the corner of the workpiece.
  • Figs 1 and 2 an arc is drawn downward with 0 as the center and half of the length of the diagonal line of the regular hexagon as radius, so as to form the arc linking points B and D at the lower part of the wrench's open end, the arc is extended crossing the broken line of the wrench at B' and D'. All the acute corners of the open end of the wrench are designed as round ones to avoid stress concentration. Tolerance is in conformity with the National Standard, and the torque beared on the two special edges satisfies the C. D. series specifications of the National Standards. The angle between the central line of the wrench's open end and the handle of the wrench is 15 degrees.
  • the wrench With two working positions, each angled relative to the other by an angle of ⁇ in the same rotating direction, the wrench can be rotated continuously without turning its sides when the rotated angle of the wrench's handle is larger than 30 degrees, or can be used by turning its sides in the narrow space where the rotated angle is less than 30 degrees.
  • the wrench according to the present invention provides advantages that a) it is easy to use because the inclined surfaces at the open end of the wrench can guide the wrench automatically when the wrench is inserted. b) it can enhance the performance of the wrench's bearing greater torque without slipping. Although the number of the corners on the open end of the wrench is more than traditional solid wrench, it is still easy to manufacture and popularize with only a little higher cost than traditional solid wrench.
  • the wrench shown in Figure 2 is mainly designed for hexagonal fastening pieces with larger size, regardless of using in narrow spaces less than 30 degrees.
  • the technology for implementing the new type solid wrench is very similar to that of traditional solid wrench, only the procedure for processing the special open end is to be added.
EP94913474A 1993-06-21 1994-04-29 Schranbenschlüssel Withdrawn EP0747173A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN93216345 1993-06-21
CN93216345U CN2176871Y (zh) 1993-06-21 1993-06-21 一种便于使用的新型呆扳手
PCT/CN1994/000032 WO1995000297A1 (fr) 1993-06-21 1994-04-29 Cle d'un type nouveau

Publications (2)

Publication Number Publication Date
EP0747173A4 EP0747173A4 (de) 1996-08-23
EP0747173A1 true EP0747173A1 (de) 1996-12-11

Family

ID=5005455

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94913474A Withdrawn EP0747173A1 (de) 1993-06-21 1994-04-29 Schranbenschlüssel

Country Status (4)

Country Link
EP (1) EP0747173A1 (de)
CN (1) CN2176871Y (de)
AU (1) AU6562694A (de)
WO (1) WO1995000297A1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2752183A1 (fr) * 1996-08-12 1998-02-13 Simplet Serge Cle plate a commande de rotation alternative et manuelle
WO1998038009A1 (fr) * 1997-02-28 1998-09-03 Facom Cle cliquetante
WO2000030813A1 (de) * 1998-11-25 2000-06-02 Hirse-Patent-Lizenz-Gmbh Gabelschlüssel
DE10020379C1 (de) * 2000-04-26 2002-01-24 Hirse Patent Lizenz Gmbh Ratschengabelschlüssel
DE10123670C1 (de) * 2001-05-16 2002-11-07 Hirse Patent Lizenz Gmbh Gabelschlüssel
DE202020101066U1 (de) 2020-02-27 2021-05-28 Wera Werkzeuge Gmbh Maulschlüssel
DE102020105099B3 (de) 2020-02-27 2021-07-08 Wera Werkzeuge Gmbh Maulschlüssel

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU701290B2 (en) * 1995-05-04 1999-01-21 Gerhard Schmauser Modular building framework

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB289703A (en) * 1927-09-27 1928-05-03 Alfred Henry Witter Improvements in or relating to spanners or wrenches
US3850057A (en) * 1973-11-23 1974-11-26 Johnson P Combination torqueing and ratcheting wrench
US3955450A (en) * 1975-04-25 1976-05-11 James R. Head Adjustable wrench for torqueing and ratcheting a symmetrical polygon member
GB2080171A (en) * 1980-07-24 1982-02-03 Harris Alexander Spanner
US4889020A (en) * 1987-08-31 1989-12-26 Baker David R Open end ratchet type wrench

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2671368A (en) * 1951-03-12 1954-03-09 Diebold Fritz Wrench, including movable or stationary jaws
CN87200544U (zh) * 1987-01-13 1987-10-14 李常青 扳手
CN2037289U (zh) * 1988-04-19 1989-05-10 郑潮 单向开口扳手
US5131312A (en) * 1989-09-18 1992-07-21 Macor Richard J Surface conforming, torque enhancing wrench
CN2071566U (zh) * 1990-07-18 1991-02-20 漆明远 一种新型呆扳手
CN2100285U (zh) * 1991-09-11 1992-04-01 国营北京市东北旺工具厂 异型扳手

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB289703A (en) * 1927-09-27 1928-05-03 Alfred Henry Witter Improvements in or relating to spanners or wrenches
US3850057A (en) * 1973-11-23 1974-11-26 Johnson P Combination torqueing and ratcheting wrench
US3955450A (en) * 1975-04-25 1976-05-11 James R. Head Adjustable wrench for torqueing and ratcheting a symmetrical polygon member
GB2080171A (en) * 1980-07-24 1982-02-03 Harris Alexander Spanner
US4889020A (en) * 1987-08-31 1989-12-26 Baker David R Open end ratchet type wrench

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9500297A1 *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2752183A1 (fr) * 1996-08-12 1998-02-13 Simplet Serge Cle plate a commande de rotation alternative et manuelle
WO1998006543A1 (fr) * 1996-08-12 1998-02-19 Serge Simplet Cle plate a commande de rotation alternative et manuelle
US6269715B1 (en) 1997-02-28 2001-08-07 Facom Ratchet-type wrench
FR2760206A1 (fr) * 1997-02-28 1998-09-04 Facom Cle cliquetante
WO1998038009A1 (fr) * 1997-02-28 1998-09-03 Facom Cle cliquetante
WO2000030813A1 (de) * 1998-11-25 2000-06-02 Hirse-Patent-Lizenz-Gmbh Gabelschlüssel
DE19854374A1 (de) * 1998-11-25 2000-06-08 Hirse Patent Lizenz Gmbh Gabelschlüssel
US6334374B1 (en) 1998-11-25 2002-01-01 Hirse-Patent-Lizenz-Gmbh Open-end wrench
DE19854374B4 (de) * 1998-11-25 2004-07-01 Hirse-Patent-Lizenz-Gmbh Gabelschlüssel
DE10020379C1 (de) * 2000-04-26 2002-01-24 Hirse Patent Lizenz Gmbh Ratschengabelschlüssel
DE10123670C1 (de) * 2001-05-16 2002-11-07 Hirse Patent Lizenz Gmbh Gabelschlüssel
DE202020101066U1 (de) 2020-02-27 2021-05-28 Wera Werkzeuge Gmbh Maulschlüssel
DE102020105099B3 (de) 2020-02-27 2021-07-08 Wera Werkzeuge Gmbh Maulschlüssel

Also Published As

Publication number Publication date
EP0747173A4 (de) 1996-08-23
AU6562694A (en) 1995-01-17
CN2176871Y (zh) 1994-09-14
WO1995000297A1 (fr) 1995-01-05

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