Hidden Braking Assembly Locking Mechanism for Telescopic Frame Adjustment
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Solution Overview
Problem
Conventional hidden brake devices experience brake failure due to wear and tear of the hole and lower stem, leading to a loss of braking effect when the hole is enlarged, and require continuous user operation to maintain braking.
Innovation Solution
A hidden braking assembly with an adjusting set that includes a locking part, a body part, and a junction part, allowing for telescopic adjustment of the main frame and connecting unit, with a locking mechanism that fixes the upper and lower stems and frames, enabling quick adjustment and stable braking without continuous user operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the lower stem slides directly over the junction part during telescopic adjustment, then the adjustment is simple and direct, but the hole and lower stem are easily worn away causing brake failure
Solution Approach 1:
The patent introduces an adjusting set as an intermediary component between the upper stem and lower stem. This adjusting set includes a body part, locking part, and junction part that work together to mediate the connection and force transmission, preventing direct contact and wear between the lower stem and junction part hole, thus resolving the contradiction between simple operation and reliable braking.
2Reliability
If the user grips the brake handle continuously to maintain braking effect, then the braking effect is maintained, but the operation becomes cumbersome and inconvenient
Solution Approach 1:
The patent implements a self-service mechanism through the locking part and elastic member combination. The elastic member automatically pushes the locking part to engage with the aperture when the upper stem moves, creating a self-locking braking effect that maintains itself without continuous user input. This resolves the contradiction by making the system self-sustaining rather than requiring continuous manual operation.
3Duration of action of moving object
If the hole size is enlarged due to wear, then the lower stem cannot be engaged properly, but continuing to use causes brake failure
Solution Approach 1:
The adjusting set serves as a mediator that protects the original junction part hole from direct wear by the lower stem. The locking part and body part of the adjusting set create a new engagement mechanism that avoids the wear problem of the original hole, thereby extending the service life while maintaining reliable braking function throughout the extended period.
Data Source
AI summary
A hidden braking assembly provides a connecting unit disposed inside a main frame. The connecting unit comprises an upper stem connected to a brake handle, a lower stem connected to a brake unit, and an adjusting set fixed to the lower stem and penetrated by the upper stem. A locking part of the adjusting set is operated to quickly adjust a telescoping length of an upper and a lower frame of the main frame. The connecting unit is synchronically adjusted during the adjustment of the upper frame and the lower frame. After the adjustment, the locking part is fixed to a body part of the adjusting set so that the two frames and the two stems can be firmly positioned, thereby facilitating a rapid adjustment of the telescoping length of the main frame and the connecting unit, increasing a using convenience, and attaining a stable braking effect.