Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Ratchet wrench

A wrench and pawl technology, applied in the field of open ratchet wrench, can solve the problems such as difficult to use ratchet wrench, and achieve the effect of simple structure and convenient use

Inactive Publication Date: 2012-07-04
POSITEC POWER TOOLS (SUZHOU) CO LTD
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes it difficult to use the ratchet wrench in tight spaces
Ordinary open-end wrenches are especially suitable for narrow spaces, and the wrench can be placed from the side, but it needs to be removed from the workpiece after turning the workpiece by a small corner (such as 30°) during the tightening or loosening operation , and then put the wrench on the workpiece at another angle to continue turning. This process is usually repeated several times until the workpiece is completely tightened or loosened.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Ratchet wrench
  • Ratchet wrench
  • Ratchet wrench

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] refer to figure 1 and figure 2 As shown, the wrench 10 according to the first preferred embodiment of the present invention includes a handle portion 12 extending longitudinally and a jaw portion 18 composed of two separate jaws 14, 16, wherein the first jaw 16 is near the jaw. One end is provided with the pawl 20 and the elastic element 30 and the conversion piece 32 that are matched with the pawl 20 . The cross-section of the ratchet 20 is roughly T-shaped, and one end 22 of the transverse section of the T-shaped ratchet 20 close to the jaw is pivotally connected to the jaw 16, and the other end 24 leans against the elastic element 30 and is provided with a workpiece occlusal surface 26 , The vertical section 28 of the T-shaped pawl 20 is matched with the conversion piece 32 . The conversion member 32 is pivotally connected to the claw 16, and one end matched with the vertical section 28 of the ratchet 20 is provided as a cam surface 34, and the other end is provid...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention discloses an open-typed ratchet spanner, which comprises a handle part that extends longitudinally and a jaw part composed of two separated claws; wherein, at least one claw is provided with a pallet with a workpiece occlusal surface on the end close to the jaw; the pallet rotates around a pivot which is perpendicular to the vertical shaft of the handle; when in a first position, the workpiece occlusal surface prevents the workpiece from breaking away from the jaw, when in a second position, the work piece occlusal surface allows the workpiece break away from the jaw. The open-typed ratchet spanner provided by the present invention has the advantage that the open-typed spanner can be inserted from the side and also has the advantages of continuous operation, simple structure and convenient use.

Description

technical field [0001] The invention relates to a ratchet wrench, in particular to an open type ratchet wrench which can be inserted into a workpiece from the side. Background technique [0002] Two common tools that are commonly used to turn workpieces such as nuts, bolts, etc. are ratchet wrenches and open-end wrenches. Ratchet wrenches are usually closed devices, so they are placed on the workpiece from above or below the workpiece with a complete grip on it. This makes it difficult to use a ratchet wrench in tight spaces. Ordinary open-end wrenches are especially suitable for narrow spaces, and the wrench can be placed from the side, but it needs to be removed from the workpiece after turning the workpiece by a small corner (such as 30°) during the tightening or loosening operation , and then put the wrench on the workpiece at another angle to continue turning. This process is usually repeated several times until the workpiece is completely tightened or loosened. Con...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B25B13/46B25B23/00
Inventor 钟红风
Owner POSITEC POWER TOOLS (SUZHOU) CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com