Bicycle Handlebar Clamp With Intersecting Bore For Secure Shifter Mount
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Solution Overview
Problem
Conventional bicycle handlebar clamps often cause difficulties in operating gear shifting devices due to their placement within the brake lever bracket, leading to potential detachment of fixing bolts and nuts, which can result in the gear shifting operation device being hard to use and potentially falling off.
Innovation Solution
A bicycle handlebar clamp design featuring an outer surface, handlebar engagement surface, and intersecting attachment bore and fixing nut receiving aperture, which secures the fixing nut and attachment pin to prevent them from dropping off, even if they become loose, ensuring the gear shifting operation device remains securely attached.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the gear shifting operation device is mounted on the mounting bracket on one of the brake levers, then the device can be attached to the handlebar, but the fixing bolt may become loose and drop off
Solution Approach 1:
The mounting structure is divided into separate functional elements: the handlebar clamp, the mounting bracket, and the gear shifting operation device. This segmentation allows each component to be optimized independently while maintaining overall reliability through proper interface design with recesses and protrusions for secure attachment.
Solution Approach 2:
The mounting bracket serves as an intermediary element between the handlebar clamp and the gear shifting operation device. It provides a stable mounting platform with recesses that receive protrusions from the device, ensuring secure attachment while maintaining ease of operation.
2Area of stationary object
If the gear shifting operation device is attached within the bracket of the brake lever, then the structure is compact, but the operating member becomes difficult to operate
Solution Approach 1:
The mounting bracket extends the attachment structure in a direction perpendicular to the handlebar, creating additional spatial dimension for the gear shifting operation device. This allows the device to be positioned away from the handlebar surface, providing adequate space for operating members while maintaining compact overall structure.
3Reliability
If the fixing nut receiving aperture and attachment bore intersect, then the fixing nut is secured to the handlebar clamp, but the structure becomes more complex
Solution Approach 1:
The fixing nut receiving aperture and attachment bore are merged into a single integrated clamp body structure. The intersecting bores are formed directly in the clamp, eliminating the need for separate fastening components and reducing overall structural complexity while maintaining reliable prevention of fixing nut detachment.
Data Source
AI summary
A bicycle handlebar clamp is configured to be attached on a handlebar. The bicycle handlebar clamp includes an outer surface, a handlebar engagement surface and an attachment bore. The handlebar engagement surface is configured to be engaged with the handlebar. The fixing nut receiving aperture is configured to receive a fixing nut. The fixing nut receiving aperture extends through the handlebar clamp from the outer surface to the handlebar engagement surface. The attachment bore is configured to receive an attachment pin. The attachment bore and the fixing nut receiving aperture intersect each other. A bicycle handlebar clamp assembly is provided with the bicycle handlebar clamp.