Floating Calliper Brake Guide with External Closing Element
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing guides for floating callipers in vehicle disc brakes face issues with the removal of closing elements, which can lead to damage and loss, compromising the barrier against foreign matters, and are prone to irreparable damage during maintenance.
Innovation Solution
A guide design where the closing element is arranged externally to the bushing, allowing for safer and easier removal by distributing the force over a larger surface, and incorporating a cup body with teeth and notches for secure snap-fit engagement, ensuring retention even if the head is torn, and a bushing with a corrugated inner profile to reduce friction and prevent foreign matter entry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the closing element is provided with an enlarged head for manual removal, then the closing element can be grasped and removed, but the removal operation can easily lead to damaging the closing element irreparably
Solution Approach 1:
The closing element is divided into two functional parts: a head portion for grasping and removal operations, and a body portion that remains retained on the bushing. This segmentation allows the head to be removed separately without compromising the integrity of the retaining body, resolving the contradiction between ease of removal and structural integrity.
Solution Approach 2:
The head of the closing element is extracted as a separable component that can be removed from the bushing without removing the entire closing element. This allows maintenance operations to access and remove the head for cleaning or replacement while the body remains secured, eliminating the risk of irreparable damage to the entire closing element.
2Ease of operation
If the closing element is provided with an enlarged head for manual removal, then the closing element can be grasped and removed, but the head may be torn leaving the closing element fitted into the bushing
Solution Approach 1:
The closing element is segmented into a removable head and a retained body portion. The head can be completely separated from the bushing without tearing, while the body remains secured. This segmentation ensures that removal operations cannot leave partial fragments embedded in the bushing, as the design explicitly provides for complete separation of the head portion.
3Device complexity
If only the closing element prevents entrance of foreign matters, then the barrier capability is provided, but should the closing element be accidentally removed, the guide would remain exposed to foreign matters
Solution Approach 1:
The guide structure incorporates a redundant barrier mechanism that is always active, regardless of the closing element's position. The bushing's corrugated inner profile creates a physical barrier that prevents foreign matter entry even when the closing element is removed, providing beforehand protection that compensates for potential closing element failure.
Solution Approach 2:
The bushing incorporates a corrugated inner profile that acts as a flexible barrier structure. This corrugated design creates multiple physical obstructions that prevent foreign matter from entering the guide, providing continuous protection independent of the closing element's presence or integrity.
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 guide facilitates safer and more efficient removal of the closing element, reduces the risk of damage, and maintains effective barrier capabilities against foreign matters, even in the event of accidental loss, while being cost-effective to manufacture.
Implementation Method 1
The bushing (30) comprises a corrugated inner profile defined by a plurality of annular grooves (35) suitable for reducing the contact surface between the bushing and the pin
Implementation Method 2
The closing element (40) is provided with a cup body (41) suitable for receiving at least partly the second tubular portion (32) of bushing (30) therein
Data Source
Figure 1~3
Figure 4~6
Figure 7~8
AI summary
Guide for floating callipers of a vehicle disc brake, intended for being arranged between a support structure B of a disc brake and a floating calliper A, comprising: - a pin 20, intended for being fixed by a coupling portion 21 to the support structure B or to the floating calliper A, and for being slidingly guided with a sliding portion 22 inside a sliding seat C obtained in the floating calliper A or in the support structure B; - a bushing (30) intended for being inserted into the sliding seat C and for receiving internally in sliding relation the sliding portion 22; and - a closing element 40 removably associated to bushing 30 in opposite position relative to the coupling portion 21 for preventing the entrance of foreign matters into said guide 1. The invention is characterised in that the closing element 40 is arranged completely external to bushing 30.