Bicycle Frame Child Seat Mounting Bracket
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Solution Overview
Problem
Existing bicycle frames with child seats are cumbersome to assemble and disassemble, leading to the child seat often remaining mounted even when not in use, which restricts the versatility of the bicycle and adds unnecessary weight.
Innovation Solution
A bicycle frame design where the connecting element is permanently attached to the seat tube, allowing the fastening bracket to be easily and quickly attached or detached using interlocking sections and a spring mechanism, enabling easy assembly and disassembly without the need for tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the connecting element is detachably connected to the bicycle frame via screw connection, then the child seat can be assembled and disassembled, but the assembly and disassembly process becomes complex and time-consuming
Solution Approach 1:
The connecting element is divided into two functional parts: a permanently attached base portion integrated with the bicycle frame, and a detachable mounting bracket portion that attaches to the base. This segmentation allows the complex connection mechanism to be permanently installed while only the simple mounting bracket needs to be attached and detached, reducing assembly complexity.
Solution Approach 2:
The connecting element's base portion is pre-installed and permanently fixed to the bicycle frame during manufacturing or initial setup. This preliminary action eliminates the need to repeatedly assemble the complex connection mechanism, reducing both time and complexity for subsequent child seat installations and removals.
2Reliability
If the child seat remains mounted on the bicycle frame when not in use, then the connecting element and fastening bracket remain assembled, but the bicycle's versatility is restricted and unnecessary weight is added
Solution Approach 1:
The system transitions from a static permanently fixed connection to a dynamic configuration where the mounting bracket can be easily attached and detached. The interlocking mechanism with insertion mandrels and receptacles provides stable connection when needed, while allowing quick release when not needed, enabling the bicycle to adapt between different usage states.
Solution Approach 2:
The interlocking mechanism is designed to be easily operated by the user without requiring tools or complex procedures. The insertion mandrels align with receptacles and can be simply pushed in or pulled out, allowing the user to independently attach and detach the child seat based on their needs, maintaining versatility while ensuring reliable mounting when required.
3Reliability
If a child seat is connected to the bicycle frame via mounting bracket, then the child seat can be securely attached, but the luggage rack cannot be used
Solution Approach 1:
The mounting bracket system provides a dynamic configuration where the child seat can be attached or detached based on immediate needs. When the child seat is not required, it can be quickly removed and stored, allowing the luggage rack to be used for alternative purposes. This dynamic adaptability resolves the conflict between child seat security and luggage carrying versatility.
Data Source
Figure 1a~1b
Figure 2a~2b
Figure 2c~3
AI summary
The present invention relates to a bicycle frame (1) with a seat tube (2), a mounting bracket (3) for a child seat, and a connecting element (4) with which the mounting bracket (3) is attached to the bicycle frame (1). In order to provide a bicycle frame (1) that allows for easy and quick mounting and dismounting of a child seat and preserves the versatility of the bicycle frame (1), the invention proposes that the connecting element (4) be permanently connected to the bicycle frame (1) and that the mounting bracket (3) be detachably attached to the connecting element (4).