Foldable Seat-Post Labeler with Arcuate Saddle Fitting
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Solution Overview
Problem
Existing methods for attaching racing numbers behind the seat post of a bicycle are prone to shifting and flapping, making identification difficult, and require expensive rigid plates or collars, while frameless options are not secure and often use multiple connection points that are not feasible for this location.
Innovation Solution
A foldable label with reflection symmetry and a head tab that can be folded into an arcuate saddle fitting, secured with a zip tie, providing a low-profile, secure, and affordable solution for mounting racing numbers on cylindrical objects like seat posts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a frameless number label is connected to the seat post by a single zip tie or twist tie, then the cost is reduced and ease of manufacture is improved, but the label shifts and flaps excessively during use, reducing reliability
Solution Approach 1:
The label is divided into multiple functional segments: a header tab portion that forms a collar, a body portion with the indicium, and a tail portion. This segmentation allows the header tab to create a secure interference fit with the cylindrical object, preventing the shifting and flapping that occurs with simple single-point attachments.
Solution Approach 2:
The header tab is designed to fold into an arcuate, substantially circular collar shape that conforms to the cylindrical surface of the seat post. This curved geometry creates an interference fit that secures the label firmly to the cylindrical object, eliminating the erratic flapping problem associated with flat, rigid plate attachments.
2Reliability
If a rigid plate or frame with collar is used to connect the number label behind the seat post, then stability and reliability are improved, but the cost increases significantly
Solution Approach 1:
The label is constructed as a thin, flexible substrate that can be folded and formed into a secure attachment configuration. This thin-film approach eliminates the need for expensive rigid plates, frames, and collars while maintaining secure attachment through the folded header tab collar that creates an interference fit.
Solution Approach 2:
The header tab is designed to be self-forming into a secure collar through folding operations. The folded collar creates its own secure attachment mechanism by forming an interference fit with the cylindrical object, eliminating the need for separate collars, fasteners, or complex assembly procedures required by rigid plate systems.
3Stability of the object's composition
If a rigid plate or frame is used to mount the number label behind the seat post, then professional appearance and stability are achieved, but the device complexity and cost increase
Solution Approach 1:
The functions of the label body, the collar, and the attachment mechanism are merged into a single integrated structure. The header tab forms both the collar and the attachment interface, while the body portion contains the indicium. This integration eliminates the need for separate rigid plates, frames, and collars, reducing device complexity while maintaining stability.
4Ease of manufacture
If the label is made thin and foldable to reduce cost and complexity, then ease of manufacture and affordability are improved, but the structural strength to prevent shifting may be reduced
Solution Approach 1:
The header tab is formed into an arcuate collar shape that creates an interference fit with the cylindrical object. This curved geometry distributes attachment forces around the circumference of the seat post, providing substantial holding strength despite the thin substrate material, preventing the shifting problem associated with simple flat attachments.
Solution Approach 2:
The label is pre-formed with fold lines and a header tab structure that, when folded, creates a secure collar configuration before final attachment. This preliminary structuring ensures that the thin substrate achieves its full attachment potential, providing sufficient strength to prevent shifting while maintaining ease of manufacture.
Data Source
AI summary
A low-profile labelling device for mounting to a cylindrical object, enabling identification of a rider participating in a cycling event by labeling the seat post with a racing number. The low-profile labelling device may thin enough so as to be folded from a flat condition to a folded condition that provides a saddle fitting interfacing an outer surface of the seat post and connected by way of a zip tie, facilitating an easy to use, affordable, secure fitting, and professional mount a racing number to identify a rider during a cycling event.