Bicycle Accessory Piping-and-Flag Mount for Snag-Free Carrying
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Solution Overview
Problem
Existing bicycle accessories often have outward-projecting connecting means that can snag on clothing or objects, reducing wearing comfort and creating a discrepancy between visual and practical appearance, especially when soft materials like textiles are used.
Innovation Solution
A form-fitting mounting system using a piping and flag design, where the piping is inserted into a mushroom-shaped groove on the bicycle frame or luggage rack, allowing for easy attachment and detachment while minimizing protrusion and maintaining visual harmony with the accessory's material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If rigid connecting means (e.g., hooks) are used to securely attach the accessory to the bicycle, then the holding security is improved, but the wearing comfort deteriorates due to snagging on clothing or objects
Solution Approach 1:
The connecting means on the accessory side is designed to be movable relative to the main body, allowing it to pivot between a secured position (for reliable attachment) and a retracted position (for comfortable carrying). This dynamic design resolves the contradiction by enabling the system to adapt its state based on operational requirements.
2Reliability
If rigid connecting means are used to ensure secure attachment, then the holding security is improved, but the visual appearance deteriorates due to discrepancy between soft main body and rigid attachments
Solution Approach 1:
The connecting means is designed with different properties at different locations: the portion visible on the accessory surface is made soft and flexible to match the main body's appearance, while the portion inserted into the groove provides rigid securing. This local differentiation resolves the visual discrepancy while maintaining holding security.
3Adaptability or versatility
If outward-projecting connecting means are used to enable attachment, then the functionality is improved, but the wearing comfort deteriorates due to catching on clothing or objects
Solution Approach 1:
The connecting means is designed to be movable, allowing it to extend outward when attachment is needed and retract when not in use. This dynamic behavior enables the system to provide attachment functionality only when required, eliminating the constant snagging problem of fixed outward-projecting connectors.
4Ease of operation
If the groove cross-section is wide enough to easily insert the piping, then the ease of operation is improved, but the holding security deteriorates due to reduced form-fitting engagement
Solution Approach 1:
The groove cross-section is designed with asymmetric dimensions: wider in the insertion direction to facilitate easy insertion, and narrower in the transverse direction to provide form-fitting engagement and holding security. This asymmetric design resolves the contradiction by optimizing the geometry for different functional requirements in different directions.
Data Source
Figure 1~3
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Figure 5
AI summary
The invention relates to an arrangement for holding an accessory on a bicycle, in particular on a bicycle luggage rack (7), wherein the luggage rack (7) has connecting means, and wherein the accessory has connecting means which are designed to cooperate, during use, with the connecting means of the bicycle, in particular of the luggage rack (7), and to hold the accessory on the bicycle, in particular on the luggage rack (7). It is proposed that first connecting means comprise a connecting profile (2) with a groove (3), wherein the groove cross-section opens into the surface of the connecting profile (2) and widens from the opening into the interior of the connecting profile (2), and that second connecting means which cooperate with the first connecting means comprise the following elements: a piping (4) which, during use, is received in the widened cross-sectional area of the connecting profile (2), and a so-called flag (5).which adjoins the piping (4) along the latter, has a flatter cross-section than the piping (4), and, in use, extends out of the groove (3) of the connecting profile (2), wherein the groove (3) is open at one of its two ends in such a way that the piping (4) including the tab (5) can be inserted into the groove (3) at this end. Furthermore, the invention relates to a bicycle accessory and a luggage carrier.