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Ratchet wrench

A technology of ratchet wrench and wrench, which is applied in the field of ratchet wrench, which can solve problems such as impossible to engage or loosen bolts or nuts, and achieve the effect of enhanced usability

Inactive Publication Date: 2009-10-14
WORLD TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, it was not possible to engage or loosen bolts or nuts placed in deep grooves in the workpiece

Method used

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  • Ratchet wrench
  • Ratchet wrench
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

[0036] figure 2 and image 3 It is a perspective view showing the ratchet wrench according to the embodiment of the present invention. Figure 4 is a sectional view showing a ratchet wrench according to an embodiment of the present invention. Figure 5 is along Figure 4 Sectional view of line A-A in. Figure 6 is along Figure 4 Sectional view of line B-B in . FIG. 7 is a schematic diagram illustrating an adapter according to an embodiment of the present invention. Figure 8 It is a diagram of the state of use of the ratchet wrench according to the embodiment of the present invention.

[0037] Such as Figure 2 to Figure 6 As shown, the ratchet wrench 100 according to the embodiment of the present invention includes a body unit 200 and a head unit 300 . More preferably, the ratchet wrench 100 further includes a handle unit 400 , a cover 500 an...

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PUM

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Abstract

A ratchet wrench is disclosed, which comprises a body unit which has a circular groove at its one side and a stop member; a head unit which includes a housing rotatably passing through a circular groove of the body unit, and a ratchet gear engaged at an outer rim of the housing and is selectively rotatable in one direction as the ratchet gear is engaged with the stop member; a worm screw which is rotatably pin-engaged in the interior of the housing; and a pair of arms of which one end of each arm is inserted into the interior of the housing and is pin-engaged therein with a thread being formed on an upper side of each arm and being engaged with the worm screw.

Description

technical field [0001] The present invention relates to a ratchet wrench, and more particularly to a ratchet wrench that makes it possible to successively engage or loosen bolts and nuts of various sizes without the additional use of sockets and to engage or loosen even relatively deep parts of a workpiece. Slotted bolt and nut wrench. Background technique [0002] In general, it is well known that a ratchet wrench is a tool used to tighten or loosen bolts or nuts. Ratchet wrenches can be divided into different types according to their size, style and method of use. [0003] In the existing technology, such as figure 1 As shown, the ratchet wrench includes a body 10, a head unit 30 joined to one side of the body 10 and having a ratchet attached to its outer edge, a handle unit 20 joined to the other side of the body 10, and an insertion head unit 30. And equipped with a socket 40 for receiving a groove for a bolt or a nut. [0004] When it is necessary to engage or loose...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B13/46B25B23/00
CPCB25B13/44B25B13/461B25B15/001B25B13/14B25B13/463B25B13/10B25B13/22
Inventor 金载洙禹炳玉
Owner WORLD TOOLS
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