Rotary Lock Support Structure for Adjustable Lock Pin Direction
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Solution Overview
Problem
The existing lock devices for opening and closing bodies, such as glove compartments, face challenges in adjusting the slide direction of the lock pin due to its fixed orientation determined by the molding process, making it difficult to align with the shape of the instrument panel or glove compartment.
Innovation Solution
A lock device design that includes a rotary member with a rotary shaft and a lock member connecting portion, supported by a rotation support wall erected from the lock member arrangement surface, allowing for adjustable angles during molding and reducing the number of components by eliminating the need for a separate screw fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the rotor rotation shaft is provided integrally with the glove compartment and fixed by a screw, then the number of components is reduced, but the slide direction of the lock pin cannot be adjusted according to the shape of the instrument panel or glove compartment
Solution Approach 1:
The patent makes the rotor rotation shaft rotatable relative to the glove compartment by providing a rotation support wall with a bearing hole instead of fixing it integrally. This dynamic connection allows the slide direction of the lock pin to be adjusted according to different shapes of the instrument panel or glove compartment, resolving the contradiction between reducing component count and maintaining adjustability.
2Device complexity
If the rotor is directly screwed to the rotor rotation shaft, then the number of components is smaller, but it becomes difficult to change the slide direction of the lock pin
Solution Approach 1:
The patent introduces a rotation support wall with a bearing hole that allows the rotor rotation shaft to rotate relative to the glove compartment. This dynamic connection enables easy adjustment of the lock pin slide direction during assembly without requiring complex machining or reconfiguration, thus improving ease of manufacture while maintaining component efficiency.
Data Source
AI summary
A lock device for an opening and closing body attached to a fixed body, includes a rotary member includes a rotary shaft and a lock member connecting portion rotatably connected to a lock member. A rotary member attaching part includes an upright wall erected from a lock member arrangement surface, which is a surface of the opening and closing body or the fixed body facing the lock member, and a rotation support wall continuously provided to the upright wall and arranged spaced from the lock member arrangement surface, and is provided integrally with the opening and closing body or the fixed body. The rotation support wall is formed with a bearing hole in which the rotary shaft is inserted. A retainer preventing the rotary shaft inserted in the bearing hole from coming off is provided between the bearing hole and the rotary shaft.