Handlebar Operating Device Mounting Offset and Segmentation
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Solution Overview
Problem
Existing operating devices for small vehicles with handlebars lack stability and secure attachment methods, leading to potential misalignment and inefficient operation of hydraulic systems.
Innovation Solution
The operating device comprises a base member with a support abutment and a handlebar fixing structure, featuring a contact surface and fixing surface with specific diameter ratios and offsets to ensure stable mounting on handlebars, along with a fixing fastener system for secure attachment, allowing for easy installation and operation of hydraulic devices like disc brake calipers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional fixing structure is used to attach the operating device to the handlebar, then the device can be mounted, but the mounting stability and security are insufficient leading to potential misalignment
Solution Approach 1:
The fixing structure is divided into separate functional components: a fixing portion with a fixing surface, a clamp part with clamp surfaces, and a fixing fastener. This segmentation allows each component to perform its specific function optimally while maintaining overall simplicity and reliability of the mounting system.
Solution Approach 2:
The invention introduces multiple dimensional constraints through the offset between the fixing axis and abutment axis, creating a multi-dimensional fixing system. The fixing surface defines a fixing circle about a fixing axis, while the abutment surface defines an abutment circle about an abutment axis that is offset from the fixing axis, adding rotational and positional stability in multiple dimensions.
2Reliability
If the contact surface diameter is made larger to improve contact stability, then good contact is ensured, but the fixing structure becomes more complex and larger
Solution Approach 1:
Different surfaces are designed with different dimensional characteristics optimized for their specific functions: the fixing surface has a fixing diameter suitable for secure attachment, while the abutment surface has a larger abutment diameter for stable contact. The offset between axes allows each surface to perform its function optimally without requiring both to be maximally large.
3Adaptability or versatility
If the fixing structure is designed to accommodate various handlebar sizes, then versatility is improved, but the precision of alignment and contact may be compromised
Solution Approach 1:
The clamp part is designed to be adjustable and adaptable, allowing the fixing structure to accommodate various handlebar diameters and shapes. The clamp surfaces can apply uniform pressure around the handlebar, maintaining precise alignment and contact regardless of handlebar size variations.
4Ease of manufacture
If a simple fixing structure is used to reduce complexity, then ease of manufacture is improved, but mounting stability and security are insufficient
Solution Approach 1:
The fixing structure combines multiple functions into an integrated system: the fixing portion provides attachment, the clamp part provides securing and alignment, and the abutment surface provides stability. This merging of functions into a coordinated system achieves high reliability without requiring overly complex individual components.
Data Source
AI summary
An operating device is basically provided with a base member, an operating member and a handlebar fixing structure. The base member includes a support abutment having a contact surface that is arranged to contact an outer surface of a handlebar while the operating device is in an installed state. The contact surface defines an abutment circle about an abutment axis. The operating member is movably coupled to the base member. The handlebar fixing structure is provided on the base member. The handlebar fixing structure has a fixing surface. The fixing surface defines a fixing circle about a fixing axis offset from the abutment axis.