Shift Device Compact Design via Lateral Sensor Nesting
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Solution Overview
Problem
Existing shift devices are limited in size reduction due to the conventional placement of components, which affects their compactness and precision in detecting shift positions.
Innovation Solution
The shift device incorporates a rotatably supported shift body with an adjustment body and a detection section, where the adjustment body includes an urging member and a guide member, and the detection section is positioned to communicate closely with the adjustment body, allowing for a reduction in size and improved precision in detecting shift positions through strategic component placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the detection section is disposed at the lower side of the gate block and check block, then the shift position can be detected, but the device size cannot be reduced
Solution Approach 1:
The detection section is repositioned from the lower side to the lateral side of the shift body, utilizing the lateral dimension for detection. This dimensional reconfiguration allows the detection function to be integrated into the side profile of the shift body, reducing the overall device volume while maintaining detection precision through optimized signal transmission paths.
Solution Approach 2:
The detection section is nested within the shift body structure itself, with the detection portion positioned inside the shift body and the detected portion on the lateral side. This nesting arrangement eliminates the need for separate lower-side mounting space, achieving compact integration without compromising detection accuracy.
2Volume of moving object
If the adjustment body and detection section are disposed at the same end side of the shift body, then the device size can be reduced, but the shift position detection precision may be affected
Solution Approach 1:
The detection system is segmented into distinct functional portions: the detection section with its detection portion inside the shift body and detected portion on the lateral side, separated from the adjustment body. This segmentation allows both components to be positioned at the same end side for compactness while maintaining independent optimization of detection precision through proper spatial separation of sensing elements.
Data Source
AI summary
In a shift lever device, a gate pin of a lever is guided by a gate groove of a gate plate, and a detent pin of the lever is abutted on a detent face of a detent block due to an urging force. A sensor mechanism detects a shift position of the lever. The gate plate, the detent block, and the sensor mechanism are disposed at a lower side of the lever, the gate plate and the detent block are disposed at a rear side of the lever, and the sensor mechanism is disposed at a front side of the gate plate and the detent block. This thereby enables a reduction in size of the shift lever device in an up-down direction.