Combination Including a Ratchet Wrench and a Driving Member

Active Publication Date: 2016-03-03
HU BOBBY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0006]This need and other problems in the field of reliable ratchet wrenches

Problems solved by technology

When the ratchet wrench is directly coupled with a nut, the nut is apt to pass from an end of the ratchet wheel through the other end of the ratchet wheel, leading to inconvenience to a user, because the user has to keep the nut in the ratchet wheel while rotating the body.
However, the coupling force between the C-shaped retainer ring and the notches of the extension rod is insufficient such that the ratchet wheel is apt to slide relative to the extension rod.
As a result, the end of the extension rod is apt to extend from

Method used

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  • Combination Including a Ratchet Wrench and a Driving Member
  • Combination Including a Ratchet Wrench and a Driving Member
  • Combination Including a Ratchet Wrench and a Driving Member

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047]FIGS. 1-11 show a combination including a ratchet wrench 10 and a driving member 40 of a first embodiment according to the present invention. Ratchet wrench 10 includes a body 20, a ratchet wheel 30, and an operative portion 50.

[0048]Body 20 is pivotably connected to operative portion 50 and can be retained in a selected angular position relative to operative portion 50. Operative portion 50 is adapted to be gripped by a user.

[0049]Ratchet wheel 30 is mounted in body 20 and is rotatable about a rotational axis C relative to body 20. Ratchet wheel 30 includes a first side 31 and a second side 32 spaced from first side 31 along rotational axis C. Ratchet wheel 30 further includes a driving hole 33 extending from first side 31 through second side 32. Driving hole 33 is polygonal. In this embodiment, driving hole 33 includes an inner periphery 332 having a plurality of abutment surfaces 331 contiguous to each other and arranged along a circumferential direction about rotational axis

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PUM

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Abstract

A combination includes a ratchet wrench and a driving member. The ratchet wrench includes a body and a ratchet wheel mounted in the body and rotatable relative to the body about a rotational axis. A driving hole extends through from a side through the other side of the body along the rotational axis and includes an inner periphery having a plurality of abutment surfaces. A corner is formed between each two adjacent abutment surfaces. At least one limiting portion protrudes from the inner periphery of the driving hole in a radial direction perpendicular to the rotational axis. The driving member includes at least one evasive portion and is coupled to the driving hole. The driving member is movable between a first coupling position and a second coupling position along the rotational axis when the at least one evasive portion is aligned with the at least one limiting portion.

Description

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Claims

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Application Information

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Owner HU BOBBY
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