Bicycle Handlebar Operating Device Restriction Member
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Solution Overview
Problem
Human-powered vehicle operating devices face challenges in preventing unintentional operation of user inputs, leading to inefficient control and potential accidents.
Innovation Solution
The operating device incorporates a base member with a restriction member that is pivotally coupled to the user operating portion, restricting access and movement to prevent unintentional operation by designating specific lengths and positions relative to a reference plane, and can be detachably attached for flexibility and cost-effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the user operating portion is made accessible for easy operation, then ease of operation is improved, but unintentional operation increases reducing reliability
Solution Approach 1:
The restriction member acts as an intermediary element between the user operating portion and the user's hand. It selectively blocks access to the user operating portion based on the presence and position of the operating member, allowing legitimate operation while preventing unintentional activation. This mediator resolves the contradiction by controlling access without permanently restricting usability.
2Device complexity
If the restriction member is integrated into the base member, then device complexity is reduced, but design flexibility and cost-effectiveness worsen
Solution Approach 1:
The restriction member is designed as a separate, detachable component from the base member rather than being permanently integrated. This segmentation allows the restriction member to be independently manufactured, adjusted, or replaced based on different operational requirements, providing design flexibility and cost-effectiveness while maintaining relatively simple overall device structure.
Data Source
AI summary
An operating device comprises a base member, an operating member, a user operating portion, and a restriction member. The base member includes a first end portion, a second end portion, and a grip portion. The first end portion is configured to be coupled to a handlebar. The second end portion is opposite to the first end portion. The grip portion is provided between the first end portion and the second end portion. The operating member is pivotally coupled to the base member about a pivot axis. The user operating portion is configured to receive a user input and provided at the second end portion of the base member. The restriction member is at least partly provided, as viewed along the pivot axis, between the user operating portion and the first end portion of the base member to restrict unintentional access to the user operating portion.