Bicycle Frame Accessory Holder with Adjustable Mounting
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Solution Overview
Problem
Existing bicycle frame accessory holders require users to adopt unbalanced and dangerous postures to access portable items like water bottles, and fail to provide stable positioning due to fixed height adjustments and susceptibility to disengagement during cycling.
Innovation Solution
A bicycle frame assembly featuring a head tube, seat tube, linking member, and adjustable support holder with a fastening and positioning system that allows for movable placement of portable items, enabling users to access them naturally while enhancing stability and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the accessory holder is mounted to partially bent portions of two top tubes with fixed height, then the structure is simple and easy to manufacture, but the height cannot be adjusted causing the water bottle to be either too high (prone to disengagement) or too low (user cannot reach)
Solution Approach 1:
The accessory holder is designed with movable mounting capability along the top tube, transforming from a fixed static structure to a dynamic adjustable one. The holder can be positioned at different locations and heights on the top tube according to user needs, allowing the same simple structure to adapt to different user requirements without increasing overall structural complexity
Solution Approach 2:
The mounting position parameter of the accessory holder is made variable. Instead of being fixed at a predetermined location, the holder's position along the top tube can be adjusted by the user, changing the spatial parameter to achieve optimal accessibility and stability for different portable accessories
2Ease of operation
If the water bottle is placed too high in the accessory holder, then the user can reach it easily, but the water bottle is subject to disengagement due to bumpy road and vibration
Solution Approach 1:
The accessory holder employs a dynamic fastening mechanism that can adapt to different positions. The fastening member can engage at different points along the holder structure, allowing the system to maintain secure holding capability regardless of the bottle's vertical position, thus preventing disengagement while preserving user accessibility
3Reliability
If the water bottle is placed too low in the accessory holder, then the positioning stability is improved, but the user fails to reach the water bottle
Solution Approach 1:
The adjustable mounting system allows the user to dynamically position the accessory holder at the optimal height that balances both accessibility and stability. By moving the holder to different locations on the top tube, the user can achieve the perfect compromise between how easy it is to reach the bottle and how stable the bottle remains during cycling
4Adaptability or versatility
If a carrier is additionally mounted to the bicycle frame to carry portable spare parts and accessories, then the functionality is improved, but the user needs to adopt unbalanced and dangerous posture to access items
Solution Approach 1:
Instead of mounting the accessory holder on the vertical side of the bicycle frame (requiring lateral bending), the holder is positioned on the horizontal top tube. This dimensional change places accessories within the rider's natural reach zone, eliminating the need for awkward lateral bending while maintaining the bicycle's carrying capability
Data Source
AI summary
A bicycle frame assembly is formed of a head tube, a seat tube, a linking member, and a support holder. The linking member includes a first part, two second parts, and two positioning parts. The first part is connected with the seat tube. The two positioning parts are spaced from each other and extend in an interval toward the head tube from the first part to jointly form a limiting portion therebetween. The two second parts are connected with the head tube and located between the head tube and the two positioning parts. The support holder is movably mounted to the limiting portion relative to the linking member for accommodating a portable part or accessory. Therefore, the present invention facilitates that the rider can take or put the portable part or accessory from or into the support holder with his or her natural riding posture.