Pivoting Bike Rack Support with Oblique Restrictors
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Solution Overview
Problem
Existing bike-carrying racks occupy significant space when not in use and are time-consuming to disassemble, as the supporting members are fixedly attached and require extensive disassembly for storage space reduction.
Innovation Solution
A supporting structure for bike-carrying racks featuring a pivotally swinging supporting member with a position-restricting assembly and a rotation mechanism, allowing the supporting member to transition between a carrying position and a folded position, reducing occupied volume and enabling quick disassembly for storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the supporting member is fixedly attached to the main body, then the loading stability is improved, but the storage space increases and disassembly time increases
Solution Approach 1:
The supporting member is transformed from a fixed structure to a dynamic one, capable of pivoting between a carrying position (providing stability) and a folded position (reducing storage space). The position-restricting assembly enables this dynamic transformation while maintaining structural integrity during use.
Solution Approach 2:
The supporting member is divided into separable components connected by a pivot joint, allowing it to be detached or folded relative to the main body. This segmentation enables the structure to adapt between providing full support during use and minimizing space during storage.
2Stability of the object's composition
If the supporting member is fixedly attached to the main body, then the loading stability is improved, but the disassembly time increases
Solution Approach 1:
The supporting member incorporates a pivot joint that allows quick transformation between carrying and folded positions without requiring complex disassembly procedures. This dynamic mechanism maintains stability during use while enabling rapid reconfiguration for storage.
Solution Approach 2:
The position-restricting assembly is pre-configured to automatically engage or disengage based on the supporting member's position, eliminating the need for manual adjustment or complex disassembly steps during folding operations.
3Volume of stationary object
If the supporting member is made movable to reduce storage space, then the storage space decreases, but the loading stability deteriorates
Solution Approach 1:
The supporting member is designed with a pivot joint that allows movement between positions while maintaining structural rigidity during the carrying position. The position-restricting assembly ensures that the supporting member remains stable when in use while enabling compact folding when not in use.
Solution Approach 2:
The position-restricting assembly acts as an intermediary mechanism that mediates between the movable supporting member and the fixed main body, providing stability during carrying while enabling compact folding for storage by restricting the supporting member to specific positions.
4Stability of the object's composition
If the position-restricting assembly with two restricting members is used, then the loading stability is improved, but the device complexity increases
Solution Approach 1:
The two restricting members are positioned asymmetrically relative to the pivot axis, with their connection direction being oblique to the axis. This asymmetric arrangement provides effective positional restriction and stability while maintaining a relatively simple structural configuration.
Solution Approach 2:
The position-restricting assembly integrates multiple functions into a single mechanism: the two restricting members work together with the pivot joint to provide both movement restriction and structural support, reducing the need for separate components and simplifying the overall device complexity.
Data Source
AI summary
A supporting structure is provided for a bike-carrying rack which includes a main body. The supporting structure includes a supporting member having a pivot portion pivoted to the main body, and a position-restricting assembly. The pivot portion has an axis, and the supporting member pivotally swings about the axis to be in a carrying position or a folded position. The position-restricting assembly has two restricting members assembled on the main body, the two restricting members are located by two opposite sides of the pivot portion, and a connection direction of the two restricting members is oblique to the axis. When being in the carrying position, the supporting member abuts against the two restricting members; and when being in the folded position, the supporting member at least non-abuts against one of the two restricting members. A bike-carrying rack including the supporting structure is further provided.