Shift Lever Release Mechanism for Transmission Path Protection
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Solution Overview
Problem
Existing shift devices face challenges in releasing movement restricting forces applied to the shift body, which can obstruct the alteration of shift positions and potentially cause damage to the transmission path.
Innovation Solution
A shift device with a release mechanism integrated into the motive force transmission path that restricts and releases movement restricting forces, allowing the shift body to move freely while preventing obstruction from urging mechanisms, and restoring the movement mechanism to its initial state after force transmission is restricted.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the movement mechanism transmits motive force to the shift body, then the shift body can be moved to alter shift position, but the urging mechanism may obstruct the movement and cause damage to the transmission path
Solution Approach 1:
The release mechanism is integrated into the motive force transmission path by combining the rotor cam (release mechanism) with the movement mechanism. The rotor cam is positioned to interact directly with the urging mechanism's retaining member, allowing the release function to be embedded within the existing transmission path structure rather than adding a separate independent release system.
Solution Approach 2:
The rotor cam acts as an intermediary element between the movement mechanism and the urging mechanism. When the shift body encounters resistance, the rotor cam rotates to disengage the retaining member from the urging mechanism, releasing the movement restricting force and preventing damage while allowing smooth operation.
2Ease of operation
If the release mechanism is provided on the motive force transmission path, then the movement restricting force can be released when movement is restricted, but the device structure becomes more complex
Solution Approach 1:
The release mechanism operates automatically through the rotor cam's rotation when the shift body encounters resistance. The system self-regulates by detecting the movement restriction condition and releasing the urging force without requiring external intervention or additional control mechanisms, achieving ease of operation while minimizing added complexity.
3Stability of the object's composition
If the urging mechanism continuously urges the shift body, then the shift body returns to predetermined position, but the urging mechanism may obstruct movement when force transmission is restricted
Solution Approach 1:
The urging mechanism's force application is made dynamic rather than static. The retaining member can engage or disengage from the rotor cam based on operational conditions. When movement is restricted, the rotor cam rotates to disengage, dynamically adjusting the urging force to prevent obstruction while maintaining position stability during normal operation.
Data Source
AI summary
In a shift device, as a result of a rotor cam being rotated in a positive direction, and transmitting surfaces of the rotor cam pressing rotation surfaces of an urging cylinder, the urging cylinder is rotated in the positive direction, and a lever is moved rotationally towards a front side. Here, in a case in which a load towards the rear side is applied to the lever, the rotation surfaces are rotated in an opposite direction relative to the transmitting surfaces. As a result, the load towards the rear side being applied to the lever can be released.