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Adjustable ratchet wrench

A pawl and handle technology, applied in the field of wrench tools, can solve the problems that the ratchet movement cannot be provided, the sleeve cannot be adjusted, etc.

Inactive Publication Date: 2008-04-30
UNION RICH USA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The disadvantage of traditional adjustable wrenches is that they do not provide a ratcheting movement
Therefore, such wrenches do not allow a person to quickly and easily tighten or loosen a bolt or nut by turning it around the bolt or nut more than a desired arc or angle
The downside of traditional socket wrenches is that since the sockets are not adjustable, one needs a specific socket for each different size bolt or nut one wants to adjust

Method used

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  • Adjustable ratchet wrench
  • Adjustable ratchet wrench
  • Adjustable ratchet wrench

Examples

Experimental program
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Effect test

Embodiment Construction

[0021] As shown in FIG. 1 , a specific embodiment of an adjustable ratchet wrench device 10 according to the present invention generally has a handle assembly 12 and an adjustable ratchet head assembly 14 . Visible elements of the handle assembly 12 include a handle segment 16, a handle member 18 covering a portion of the handle segment 16, a bottom handle member 21, a spacer 22, and a steering lever of a ratchet assembly. Visible components of the detent head assembly 14 include first and second opposed detent members 26 and 27 , a gear shaft 28 , a tooth screen 30 , a protective cap 32 , and a thumb wheel 34 .

[0022] Driving the thumbwheel 34 will move the jaw members 26, 27 towards each other or towards or away from each other depending on the direction of rotation of the thumbwheel. The jaw elements 26, 27 may be moved away from each other to receive the bolt head or nut and subsequently moved towards each other to engage the bolt head or nut for tightening or loosening ...

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PUM

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Abstract

An adjustable ratchet head assembly has first and second jaw members that are connected using a pinion shaft and a cogwheel shaft. The pinion shaft has oppositely threaded end portions that engage oppositely threaded pinion shaft receiving bores in a central section of each jaw member. The cogwheel shaft has oppositely threaded end portions that engage oppositely threaded cogwheel shaft receiving bores in a proximate end of each jaw member. A pinion gear is concentric with and engages the pinion shaft. A cogwheel gear is concentric with and engages the cogwheel shaft, and is in driving engagement with the pinion gear. Driving the cogwheel gear will cause rotation of the cogwheel shaft, pinion gear and pinion shaft, and will cause the jaw members to move toward or away from each other. The ratchet head assembly is received in a cylindrical ratchet head body, which is received in a handle assembly.

Description

[0001] Cross-reference to related applications [0002] This application is a continuation-in-part of US Patent Application Serial No. 11 / 070,203, filed March 3, 2005, which is hereby incorporated by reference in its entirety. technical field [0003] The invention relates to a tool for removing bolts and nuts, in particular to a wrench tool for removing bolts or nuts that can accommodate bolt heads and nuts of various sizes. Background technique [0004] Various tools are used to tighten or loosen bolts and nuts. Such two tools are open-end wrenches and closed-end wrenches. Both types of wrenches have a special opening to accommodate a correspondingly sized bolt head or nut. In order to accommodate different sizes of bolt heads or nuts, one needs different wrenches with various corresponding opening sizes. [0005] One advance over individual open-end or closed-end wrenches, depending on the adjustment of the jaw opening, is that an adjustable wrench or wrench has an adj...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B13/46B25B13/16
CPCB25B13/16B25B13/463
Inventor T·金斯基
Owner UNION RICH USA