Bicycle Frame Tube Recess with Retaining Element
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Solution Overview
Problem
Conventional bicycle frame designs lack efficient and stable storage solutions for accessories, as existing methods either weaken the frame or cause accessories to rattle due to lack of fixation.
Innovation Solution
A bicycle frame element with a closed-profile frame tube featuring a concave indentation for accessory storage, reinforced with minor stiffening measures if necessary, and equipped with a holding element such as straps or a net to securely hold items, ensuring stability and accessibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If openings are created in frame tubes to use hollow space for storage, then storage capacity is improved, but frame stability is weakened
Solution Approach 1:
The storage compartment is nested within the existing hollow space of the closed-profile frame tube, utilizing the internal volume without requiring external additions or structural openings that would compromise frame integrity
Solution Approach 2:
A flexible retaining element (such as a net or elastic strap) is used to close the opening of the storage compartment, providing secure item retention while maintaining the closed-profile structure and allowing for easy access and cleaning
2Ease of operation
If tools are stored in openings or recesses of frame tubes, then storage convenience is improved, but accessories rattle due to lack of securing
Solution Approach 1:
A flexible retaining element made of net material or elastic strap is deployed to securely hold accessories in the storage compartment, preventing rattling while maintaining ease of access for users
Solution Approach 2:
The retaining element is designed to be movable and adaptable, allowing users to easily insert and remove items while maintaining secure retention during bicycle operation, transitioning between static retention and dynamic accessibility
Data Source
Figure 1~3
AI summary
A bicycle frame element comprises a frame tube (10), which is, for example, a top tube, a down tube, or a seat tube of a bicycle frame. The frame tube (10) has a recess (14) for holding bicycle accessories such as tools, a pump, a rain jacket, and the like. The recess (14) is spanned by at least one retaining element (20). The frame tube (10) is designed as a circumferentially closed profile in the area of the recess (14), so that the stiffness of the frame tube (10) is only minimally affected by the recess (14).