WO1995000297A1 - Cle d'un type nouveau - Google Patents

Cle d'un type nouveau Download PDF

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Publication number
WO1995000297A1
WO1995000297A1 PCT/CN1994/000032 CN9400032W WO9500297A1 WO 1995000297 A1 WO1995000297 A1 WO 1995000297A1 CN 9400032 W CN9400032 W CN 9400032W WO 9500297 A1 WO9500297 A1 WO 9500297A1
Authority
WO
WIPO (PCT)
Prior art keywords
angle
wrench
opening
center
length
Prior art date
Application number
PCT/CN1994/000032
Other languages
English (en)
French (fr)
Inventor
Ruixian Chen
Original Assignee
Ruixian Chen
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 Ruixian Chen filed Critical Ruixian Chen
Priority to AU65626/94A priority Critical patent/AU6562694A/en
Priority to EP94913474A priority patent/EP0747173A1/en
Publication of WO1995000297A1 publication Critical patent/WO1995000297A1/zh

Links

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 relates to a hand tool for various hexagonal fasteners.
  • the purpose of the present invention is to address the above-mentioned problems, can the main technical indicators meet the current country?
  • it makes the insertion more convenient, does not hurt the angle, does not slip, and is suitable for use in narrow positions less than 30 °.
  • It is easy to manufacture and has low cost.
  • the comprehensive comprehensive index is relatively high, which is conducive to implementation, forms a product, and is easy to promote.
  • the technical feature of this solution is that a special geometric shape is designed in the opening of the dead spanner and the two force-bearing edges, and there are two stations that mutually form an angle ⁇ in the same rotation direction.
  • the angle ⁇ is determined in the range of 10 ° -22 °.
  • the workpiece entrance is formed by two inclined surfaces. The formation of this geometry is shown in Figures 1 and 2.
  • the center of the opening of the wrench is YY', a regular hexagon equivalent to a hexagonal fastener
  • the initial position of ABCDEF is shown in the figure, and the center point is 0.
  • the two points I, H, J, and K are the four stress points.
  • this figure 00 ' is one eighth of the side length and the angle ⁇ is 15 °.
  • the formation of the opening line of the wrench is as shown in the figure.
  • the getter angle a is designed as shown in the figure. This constitutes a polyline at the opening of the wrench.
  • the wrench has two stations at an angle of ⁇ in the same rotation direction. It can be used continuously without turning when the rotation angle of the wrench handle is greater than 30 °, and it can be turned in a narrow position less than 30 °.
  • the force points are within 0. 55-0. 85 of the length of the regular hexagon. This enhances the torque bearing performance of the workpiece and prevents slipping.
  • some angles have been added to the system wrench, it is still easy to implement.
  • the corresponding production cost is only slightly higher than that of traditional dead wrenches, which is conducive to promotion.
  • the form in Fig. 2 is mainly used for larger specifications of hexagonal fasteners, and does not consider the use of narrow positions less than 30 °.

Description

一种便于使用的新型呆扳手
本发明涉及一种用于各种六角形紧固件的手动工具。
检索自 90年元月起至 93年 6月以前的囯内外有关呆扳手的 各种设计专利 27种，其中一半是多用型，一部分是加装附件改进 型，一部分是回转打滑型。所有的改进均围绕一个中心：使用方便、 多用途、效率高。但从实用、受力强度好，成本低，制造难易的综合 指标衡量，均不够理想，使其专利实施应用困维。
本发明的目的是即针对上述问题，在主要技术指标均能满足 现行国？示标准的情况下，使插入更方便，不伤角、不打滑、适用于小 于 30°的狭^位置使用。 易制造、低成本方面突出，全面综合指标较 高，利于实施，形成产品，易于推广。
本方案的技术特征是在呆扳手开口及两受力边设计了一个特 殊的几何形状，在同一旋转方向具有互成 Θ角度的两个工位。 Θ角 在 10°— 22°范围内逸定。并由两个斜面形成工件入口。该几何形状 的形成如图 1，图 2所示。
图 1的特征是在两个旋转方向均有互成 Θ角度的两个工位，其 扳手开口部位折线的形成过程如下：
' 扳手的开口中心是 YY'，一个相当于六角形紧固件的正六边形 ABCDEF的初始位置如图所示，中心点是 0。 然后将正六边形向上 沿 YY'移动一定的距离，使中心点 0移到 0'点， 00' 正六边形 ABCDEF边长的三分之一。再将正六边形向左和向右分別旋转 Θ角 度， Θ角在 10°— 22°范围内逸定。分別形成另两个正六边形 abcdef 和 a'b'c'd'e'f。那么 ab和 a'b'的交点是 G;de和 d'e'的交点是 H;AB和 be的交点是 I ;DE和 c'd'的交点是 J。 G，H，I，J四点即为四个受力 点。为了满足受力点落在正六边形工件边长 0. 55-0. 85的范围内， 此图中 00'为边长的五分之一， Θ角为 15°，扳手开口折线的形成如 图所示，为了在受力时不伤六角工件的角，均设计了消气角 a如图 所示，这就构成了扳手开口部位的折线。
图 2特征只是在一个旋转方向上有互成 Θ角度的两个工位，其 扳手开口部位折线的形成过程如下：
扳手的开口中心线及正六边形的初始位置同图 1。然后 !正六 边形向上沿 YY'移动一定的距离。使中心点 0移动 0'，00' 正六边 形 ABCDEF边长的三分之一。再将正六边形向左旋转 Θ角度， Θ角 在 10°—22。范围内逸定。形成另一六边形 abcdef。 那 ab和 AB的交 点是 I; de和 DE的交点是 H;bc与 AB的交点为 J ;过 J点作 YY'的 垂线并延长与 DE相交于 K点。 这样 I，H，J，K两点为四个受力点。 为了满足受力点落在正六边形工作边长的 0. 55— 0. 85范围内，此 图 00'为边长的八分之一， Θ角为 15°。 扳手开口折线的形成如图所 示，为在受力时不伤六角工件的角，均设计了消气角 a如图所示。这 就构成了扳手开口部位的折线。
以上两图中以 0为圆心正六边形对角线 1/2为半径向下画孤 形成呆扳手开口下方连接 B. D的圆弧。并向两边延长交于折线 B'， D'各尖角均选用圆角以散应力集中，公差参照国家标准设计，开口 两异形边承受的扭矩，要求满足国 ί示中 C、D糸列指标。开口中心线 与手柄中心线成 15°角。
该扳手由于在同一旋转方向具有互成 Θ角度的两个工位。可使 其在扳手手柄旋转角度大于 30°时，可不翻面连续使用，小于 30°的 狭窄位置可翻面使用。插入时有斜面自动导向，使插入方便，受力 点均在正六边形边长的 0. 55-0. 85以内，增强了工件承受扭矩的 性能，不至于打滑。 虽在 统呆扳手的基础上增加了一些角度，但 仍易于实施。相应生产成本只略高于传统呆扳手，利于推广。图 2的 形式主要用于较大规格的六角紧固件，不考虑小于 30°的狹窄位置 使用。
实施这一技术与传统呆扳手生产工艺十分近似， 只需增加异 型口部的加工工序即可。

Claims

权 利 要 求
1.一种便于使用的新型呆扳手，由带有开口的头部和手柄組 成，其特征是： 在同一旋转方向具有一个互成 Θ角的两个工位， Θ角 在 10。一 22。的范围内逸定， 两工位的中心在扳手开口中心线上的 移动距离 相对应 角工件边上的三分之一，各受力点均逸在六 角工件对应边边长 0. 55—0. 85的范围内。
2.根据权利要求 1所述的呆扳手 ，其特征是各受力点对应相 应工件和板手的受力边形成 3。的消气角。
3.根据权利要求 1或 2所述的呆扳手 ，其特征是正六边形中 心在开口中心线上移动的距离为边长的五分之一，正、反时针 Θ角 均为 1.5°。
4.根据权利要求 1或 2所述的呆扳手 ，其特征是正六边形中 心在开口中心线上移动的距离为边长的八分之一， Θ角为 15°。
PCT/CN1994/000032 1993-06-21 1994-04-29 Cle d'un type nouveau WO1995000297A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU65626/94A AU6562694A (en) 1993-06-21 1994-04-29 A novel wrench
EP94913474A EP0747173A1 (en) 1993-06-21 1994-04-29 Wrench

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN93216345U CN2176871Y (zh) 1993-06-21 1993-06-21 一种便于使用的新型呆扳手
CN93216345.9 1993-06-21

Publications (1)

Publication Number Publication Date
WO1995000297A1 true WO1995000297A1 (fr) 1995-01-05

Family

ID=5005455

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN1994/000032 WO1995000297A1 (fr) 1993-06-21 1994-04-29 Cle d'un type nouveau

Country Status (4)

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

Cited By (2)

* 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
AU701290B2 (en) * 1995-05-04 1999-01-21 Gerhard Schmauser Modular building framework

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2760206B1 (fr) * 1997-02-28 1999-04-16 Facom Cle cliquetante
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

Citations (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
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
US5131312A (en) * 1989-09-18 1992-07-21 Macor Richard J Surface conforming, torque enhancing wrench

Family Cites Families (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

Patent Citations (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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0747173A4 *

Cited By (3)

* 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
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

Also Published As

Publication number Publication date
EP0747173A4 (en) 1996-08-23
AU6562694A (en) 1995-01-17
CN2176871Y (zh) 1994-09-14
EP0747173A1 (en) 1996-12-11

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