T-Wrench Grip Assembly for Smooth Rotation Across Shank Sizes
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Solution Overview
Problem
Conventional T-shaped wrenches experience friction and difficulty in smooth rotation due to hand contact with the shank, limiting quick rotation and adaptability to different shank diameters.
Innovation Solution
A grip assembly comprising an upper and lower control module with ball holes, locking members, springs, and mounting members that allow for quick rotation and adjustable positioning on the shank, accommodating various diameters through elastic members and conic faces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the user holds the shank with one hand while rotating the handle, then friction occurs between the hand and shank, but this prevents smooth rotation and quick rotation of the screwdriver tip
Solution Approach 1:
The patent introduces a grip assembly as an intermediary component between the user's hand and the shank. This grip assembly includes a gripping portion that contacts the user's hand and a positioning portion that contacts the shank, thereby mediating the interaction and eliminating direct friction between the hand and shank during rotation operations.
Solution Approach 2:
The grip assembly is segmented into distinct functional portions: a gripping portion for hand contact, a positioning portion for shank contact, and a connecting portion linking them. This segmentation allows each portion to perform its specific function independently, with the gripping portion enabling rotation without friction while the positioning portion maintains proper engagement with the shank.
2Adaptability or versatility
If the grip assembly is fixed on the shank, then stable positioning is achieved, but it cannot accommodate different shank diameters
Solution Approach 1:
The positioning portion is designed with dynamic adjustment capability, allowing it to adapt its positioning characteristics based on the shank diameter. The connecting portion enables relative movement between the gripping portion and positioning portion, allowing the grip assembly to dynamically adjust to different shank sizes while maintaining stable positioning through the positioning portion's engagement with the shank.
3Ease of operation
If the handle section is directly connected to the shank, then simple structure is achieved, but it cannot provide adjustable positioning on the shank
Solution Approach 1:
The grip assembly divides the connection system into multiple segments: the positioning portion that engages with the shank, the connecting portion that links to the handle section, and the gripping portion for user contact. This segmentation provides adjustable positioning capability through the positioning portion while maintaining reasonable structural complexity through the modular design of the connecting portion.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables quick and smooth rotation of the T-shaped wrench with adjustable positioning, accommodating different shank diameters, enhancing user convenience and versatility.
Implementation Method 1
an upper elastic member (14) mounted in the upper mounting member (12) and configured to push the multiple upper locking members (112) toward an outer peripheral face of a shank (42)... a lower elastic member (34) mounted in the lower mounting member (32) and configured to push the multiple lower locking members (312) toward the outer peripheral face of the shank (42)
Implementation Method 2
The upper receiving portion (121) has a first end provided with an upper conic face (122)... a lower receiving portion (321) has a first end provided with a lower conic face (322)
Data Source
AI summary
A grip assembly includes an upper control module, a connecting member connected with the upper control module, and a lower control unit connected with the connecting member. The lower control unit is arranged opposite to the upper control module. The upper control module includes an upper control member, multiple upper locking members, multiple upper springs, multiple upper retaining members, an upper mounting member, an upper coupling member, and an upper elastic member mounted in the upper mounting member. The lower control module includes a lower control member, multiple lower locking members, multiple lower retaining members, a lower mounting member, a lower coupling member, and a lower elastic member. Thus, the grip assembly that allows a user's holding and allows a quick rotation of a T-shaped wrench.