Accelerator Sensor Case Extending Portion Handlebar Fixation
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Solution Overview
Problem
Existing throttle grip apparatuses face challenges in accurately detecting the rotation angle of the throttle pipe due to difficulties in positioning and stabilizing the accelerator position sensor unit relative to the handlebar, leading to wobbling issues.
Innovation Solution
The proposed solution involves an accelerator position sensor unit with a sensor case that includes an extending portion along the central axis of the handlebar. This extending portion is sandwiched between the handlebar and a cover, allowing for direct and stable fixation of the sensor unit to the handlebar.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the detection sensor is fixed to the handlebar via another predetermined member (such as a set plate or attaching member), then the sensor can be installed without direct handling, but the positioning accuracy deteriorates and the sensor becomes prone to wobble
Solution Approach 1:
The patent extracts the intermediate fixing member (set plate or attaching member) from the fixing structure and replaces it with a sensor case that directly engages with the handlebar. The sensor case includes a fitting portion that fits onto the handlebar and a fixing portion that secures the sensor, eliminating the need for separate fixing members and achieving both easy installation and accurate positioning.
2Ease of manufacture
If the detection sensor is fixed to the handlebar via another predetermined member, then the installation process is simplified, but the sensor stability deteriorates causing wobble during throttle pipe operation
Solution Approach 1:
The patent merges the sensor housing and the fixing mechanism into a single integrated sensor case. The sensor case includes a fitting portion that directly engages with the handlebar and a fixing portion that secures the sensor, combining multiple functions into one component. This integration eliminates the instability caused by separate fixing members while maintaining ease of installation.
3Ease of manufacture
If an intermediate member is used to fix the sensor to the handlebar, then the sensor can be mounted without direct handling, but the device complexity increases
Solution Approach 1:
The patent extracts and eliminates the intermediate fixing member from the system. Instead of using a separate set plate or attaching member, the sensor case itself is designed with a fitting portion that directly engages with the handlebar. This reduction in components simplifies the overall fixing structure while maintaining ease of installation.
Data Source
AI summary
An accelerator position sensor unit capable of not only easily performing positioning of the accelerator position sensor unit with respect to a handlebar but also stably fixing the accelerator position sensor unit to the handlebar with a simple configuration. An accelerator position sensor unit 1 includes an accelerator position sensor main body 3 that detects a rotation angle of a throttle pipe 12 supported by a cylindrical handlebar 11 in a state of being rotatable around a central axis O11 of the handlebar 11 along an outer circumference surface 111 of the handlebar 11, and a sensor case 4 that houses the accelerator position sensor main body 3. The sensor case 4 includes an extending portion 53 extending along a direction of the central axis O11. The extending portion 53 is sandwiched between the handlebar 11 and a cover 7 that covers the accelerator position sensor unit 1.