Ratchet wrench with jamming-preventing and indicating functions

A ratchet wrench and anti-jamming technology, which is applied in the field of ratchet wrenches, can solve the problems of inability to know the wrench turning direction, wrong turning direction, and increasing processing procedures.
CN1370659AInactive Publication Date: 2002-09-25ζž—ε½¦ζ–‡
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
ζž—ε½¦ζ–‡
Publication Date
2002-09-25
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The ratchet wrench includes a main body with communicated holding slot and holding space as well as a through hole communicated to the holding slot; a clamping block held in the holding slot; a fixedpart in the through hole and the clamping block to limit the clamping block in the holding slot and to form an indicating mark on one side of the main body; a ratchet wheel with several ratchets; a ratchet block with several ratchets on its one end to mesh with those in the ratchet wheel and capable of being set in the holding slot; and an elastomer between the ratchet block and the clamping block. The turning direction of the wrench can be known via the mark and the ratchet block may be made to separate from the ratchet wheel via pushing the clamping block to prevent jamming.
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Description

technical field

[0001] The invention relates to the field of hand tools, in particular to a ratchet wrench with anti-jamming and marking functions. Background technique

[0002] As we all know, the related industries of hand tools have a long history of development, so the current development space is quite limited, and the survival of the industry is facing challenges. Therefore, only continuous development and innovation can survive, so we can continue to use various Combining forms with various appliances, new forms are produced to increase the added value of products and effectively reduce costs. In a field with limited development space, how to maintain competitiveness is an element that is desperately awaiting breakthroughs in the industry today.

[0003] For the traditional ratchet wrench with one-way locking, the user generally cannot know the direction of the wrench's turning, and it is easy to turn the wrench in the wrong direction during operation and use, so the ...

Claims

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