CN2276859Y - L形扳手 - Google Patents

L形扳手 Download PDF

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Publication number
CN2276859Y
CN2276859Y CN 96203446 CN96203446U CN2276859Y CN 2276859 Y CN2276859 Y CN 2276859Y CN 96203446 CN96203446 CN 96203446 CN 96203446 U CN96203446 U CN 96203446U CN 2276859 Y CN2276859 Y CN 2276859Y
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China
Prior art keywords
screw
model
obtuse angle
utility
intersection points
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Expired - Fee Related
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CN 96203446
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English (en)
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林健国
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Individual
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Individual
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Priority to CN 96203446 priority Critical patent/CN2276859Y/zh
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Abstract

一种L形扳手,其主要特征是由十二个倾斜面围成的面积具有六个钝角交点和六个次钝角交点,两钝角交点的对应尺寸略小于螺丝的内六角部的公称尺寸,使其以面接触螺丝内六角部来承受扭力。

Description

L形扳手
本实用新型是一种L形扳手。
图1为常用的L形六角扳手，由于具有外六角形11的L形扳手与柱头螺丝的内六角部1具有间隙，当螺锁或拆开螺丝时，螺丝的内六角部未旋转时，L形扳手对螺丝的内六角部1先行滑动成一角度13，因此，L形扳手局部处的60度尖角12承受扭力，由于该尖角12的面积小，其应力值很大，若该应力值大于L形扳手的材料极限强度，该L形扳手的60度尖角12就被磨损或破裂，拆装螺丝就发生打滑现象，往往造成手部受伤。
本实用新型的目的在于：改变L形扳手六角形的结构，解决L形扳手使用中打滑和磨损的缺点。
本实用新型的目的是通过如下的技术方案实现的：
一种L形扳手，其特征在于：由十二个倾斜面所围成的面积具有六个钝角交点和六个次钝角交点，该两钝角交点的对应尺寸略小于螺丝的内六角部的公称尺寸。
本实用新型的优点是：将L形扳手的六角形状，改成由十二个倾斜面围成的面积，完全克服了L形六角扳手在使用中打滑和磨损的缺点，使用非常方便。
下面结合附图和实施例对本实用新型进一步说明。
图1是常用L形六角扳手扭转内六角柱头螺丝的平面图。
图2是本实用新型的L形扳手扭转内六角柱头螺丝的平面图。
图3是本实用新型的L形扳手的正视图。
图4是本实用新型的L形扳手的A-A剖面图。
图3是本实用新型具有相同横断面21的L形扳手2，图四是该扳手2的横断面21由十二个倾斜面22所围成的具有六个钝角交点23和六个次钝角交点；其中，两钝角交点22的对应尺寸B略小于螺丝的内六角部1的公称尺寸。
图2为本实用新型在锁紧螺丝时，L形扳手2的不相邻六个倾斜面22以其面接触承靠在螺丝的内六角部1；反之若拆开螺丝，L形扳手2的另外的不相邻的六个倾斜面22以面接触承靠在螺丝的内六角部1。
由于本实用新型的扳手2以面接触承受扭力，但常用的L形六角扳手以点接触承受扭力，所以本实用新型改善了常用六角扳手容易打滑和磨损成弧形的缺点。

Claims (1)

1，一种L形扳手，其特征在于：由十二个倾斜面所围成的面积具有六个钝角交点和六个次钝角交点，该两钝角交点的对应尺寸略小于螺丝的内六角部的公称尺寸。
CN 96203446 1996-03-01 1996-03-01 L形扳手 Expired - Fee Related CN2276859Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 96203446 CN2276859Y (zh) 1996-03-01 1996-03-01 L形扳手

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 96203446 CN2276859Y (zh) 1996-03-01 1996-03-01 L形扳手

Publications (1)

Publication Number Publication Date
CN2276859Y true CN2276859Y (zh) 1998-03-25

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ID=33889026

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 96203446 Expired - Fee Related CN2276859Y (zh) 1996-03-01 1996-03-01 L形扳手

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CN (1) CN2276859Y (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111230779A (zh) * 2013-11-15 2020-06-05 施耐宝公司 套筒驱动改进
US11806843B2 (en) 2013-11-15 2023-11-07 Snap-On Incorporated Socket drive improvement

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111230779A (zh) * 2013-11-15 2020-06-05 施耐宝公司 套筒驱动改进
US11173580B2 (en) 2013-11-15 2021-11-16 Snap-On Incorporated Socket drive improvement
US11806843B2 (en) 2013-11-15 2023-11-07 Snap-On Incorporated Socket drive improvement

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