Saddle Vehicle Steering Axis Terminal Holder
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Solution Overview
Problem
Existing saddle-ride vehicle configurations, such as those described in Patent Document 1, suffer from instability in holding portable devices like smartphones due to their offset positioning from the steering axis line, leading to significant swinging during handlebar rotation, which compromises the device's secure retention and visibility for the driver.
Innovation Solution
The portable terminal holder is positioned directly above the steering shaft and on the steering axis line, reducing swinging and allowing for secure fastening between upper and lower holders, ensuring better visibility and stability by aligning the device with the driver's line of sight and minimizing component count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the portable terminal holder is attached at an offset position from the steering axis line, then it can be mounted on the handlebar, but the holder swings significantly during steering rotation causing instability
Solution Approach 1:
The portable terminal holder is divided into multiple components: an upper holder and a lower holder that are separately mounted on the handlebar. This segmentation allows each holder to be positioned at optimal locations (with the lower holder on the steering axis line) to reduce swinging while maintaining mounting capability
Solution Approach 2:
The holder configuration transitions from a single offset-mounted unit to a vertically distributed arrangement with upper and lower holders positioned at different heights and locations relative to the steering axis, utilizing the vertical dimension to achieve both mounting ease and stability
2Ease of manufacture
If the portable terminal holder is positioned away from the steering axis line, then mounting is simplified, but visibility of the instrument panel and device is compromised
Solution Approach 1:
The solution moves from horizontal positioning alone to a combination of horizontal and vertical positioning, placing the upper holder higher on the handlebar to improve visibility angles while the lower holder remains on the steering axis for stability, utilizing the vertical dimension to resolve the visibility-tradition trade-off
Data Source
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AI summary
The saddle-ride vehicle includes: a front fork (7) that rotatably supports a front wheel (6); a steering shaft (9) that is coupled to the front fork (7) and is steerably supported by a vehicle body frame (11); a steering handlebar holder (40) that includes a lower holder (41L) and an upper holder (42L) and is provided above the steering shaft (9), the upper holder being in contact with the lower holder (41L) from above and fastened to the lower holder (41L); a portable terminal holder (55) that is fastened to the upper holder (42L) or the lower holder (41 L) and capable of holding a personal digital assistance (P); and a steering system (S) in which a steering handlebar pipe (10) sandwiched between the lower holder (4 1 L) and the upper holder (42L) is fixed to the steering handlebar holder (40).