Castor Brake Pad with Segmented Pressing Sections
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Solution Overview
Problem
Conventional castor brake mechanisms with brake pads experience uneven braking force and require significant force to operate effectively, leading to inefficiencies and potential wear on the wheel body.
Innovation Solution
A castor structure with a brake pad that includes a housing, a pivoting unit, a toothed wheel, and a brake pad design with locking teeth and inclined pressing sections that apply even force to the wheel-side portions, providing both friction and clamping functions for consistent braking without excessive resistance or wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the brake pad presses against the center of the wheel body, then the braking mechanism is simple to implement, but the braking force becomes uneven and requires large force to brake
Solution Approach 1:
The brake pad is divided into two separate pressing sections that press against different wheel-side portions on opposite sides of the wheel body. This segmentation allows each section to apply force independently, creating balanced and even braking force distribution across the wheel, thereby reducing the total force required for effective braking.
Solution Approach 2:
The pressing sections are positioned at specific locations on the wheel-side portions rather than at the center. Each pressing section is designed with specific geometry and positioning to optimize local contact points, ensuring that the braking force is applied at the most effective locations for generating friction and achieving uniform braking performance.
2Device complexity
If the brake pad presses against the center of the wheel body, then the structure is simple, but excessive wear is generated on the wheel body
Solution Approach 1:
By dividing the brake pad into two pressing sections that contact different wheel-side portions, the wear is distributed across multiple contact points rather than concentrated at a single center point. This segmentation of contact areas significantly extends the service life of the wheel body by preventing localized excessive wear.
Solution Approach 2:
The braking force is applied in a distributed manner across the width of the wheel body rather than at a single point. This dimensional distribution of contact points transforms the wear pattern from concentrated to dispersed, thereby extending the operational life of the wheel body.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution achieves uniform and consistent braking force with reduced effort, extending the service life of the wheel body by distributing the force evenly across the wheel-side portions and minimizing wear.
Implementation Method 1
an elastic portion (55) disposed between the first end and the second end
Implementation Method 2
the first end is formed with a plurality of locking teeth for engaging with the teeth of the toothed wheel
Implementation Method 3
each of the two braking portions includes a force-receiving section, a fixing section, and a pressing section respectively
Data Source
AI summary
A castor with a brake pad is disclosed, wherein the fixing sections and the pressing sections of the brake pad press against the two wheel-side portions of the wheel body, so in addition to providing friction, it can also provide clamping function, as a result, the braking effect can be achieved more easily, and the braking force tends to be even. Furthermore, because the fixing sections and the pressing sections of the brake pad press against the two wheel-side portions instead of pressing against the center of the wheel body, so no extra resistance is generated, and there is no excess wear, thereby extending the service life of the wheel body.