Brake Actuation Lever With Hydraulic Air Gap Adjustment
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Solution Overview
Problem
Existing brake actuation devices are complex and difficult to modify, particularly in adjusting the air gap between the brake shoe and disk, which hinders efficient operation.
Innovation Solution
A brake actuation device featuring a pivotably mounted lever element with a hydraulic chamber for force transmission, allowing easy adjustment of the air gap through hydraulic fluid management, reducing the number of components and simplifying the structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If numerous individual components are used to translate pivot movement into longitudinal movement, then the force transmission is achieved, but the device complexity increases and the structure becomes complicated
Solution Approach 1:
The patent combines multiple individual components into a single integrated transmission element that translates pivot movement into longitudinal movement. This transmission element integrates the functions of multiple separate mechanical components into one unified structure, reducing overall device complexity while maintaining effective force transmission from the lever element to the brake shoe.
Solution Approach 2:
The transmission element serves multiple functions simultaneously: it translates pivot movement to longitudinal movement, transmits force from the lever element to the brake shoe, and provides a mounting surface for the hydraulic chamber. This multi-functionality reduces the number of separate components needed in the brake actuation device.
2Reliability
If complex mechanical structures are used for force transmission, then the braking function is achieved, but the air gap adjustment becomes difficult
Solution Approach 1:
The patent introduces a hydraulic chamber filled with hydraulic fluid between the transmission element and the brake shoe. By adjusting the quantity of hydraulic fluid in the chamber, the air gap can be easily modified without complex mechanical adjustments. The hydraulic fluid acts as a flexible medium that transmits force while allowing simple volume-based adjustment of the gap distance.
Solution Approach 2:
The air gap adjustment is achieved by changing the volume parameter of the hydraulic fluid in the chamber. Instead of mechanically adjusting component positions, the system allows gap modification by simply adding or removing hydraulic fluid, changing the fluid volume parameter to achieve the desired air gap distance.
3Reliability
If multiple individual components are used in the actuation device, then the force transmission paths are established, but the number of components increases
Solution Approach 1:
The patent merges multiple individual transmission components into a single integrated transmission element. This element combines the functions of pivot movement translation, force transmission, and hydraulic chamber mounting into one component, significantly reducing the total number of parts while maintaining reliable force transmission paths from the lever element through the transmission element to the brake shoe.
Solution Approach 2:
The transmission element is designed as a multi-functional component that simultaneously performs movement translation, force transmission, and serves as a structural support for the hydraulic chamber. This universality reduces the component count by eliminating the need for separate elements for each function.
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 hydraulic chamber facilitates efficient force transfer and easy adjustment of the air gap, reducing complexity and enhancing operational efficiency in brake actuation systems.
Implementation Method 1
a hydraulic chamber (13) which can be filled with a hydraulic fluid can be arranged between the brake shoe and the transmission element for the transmission of force between the brake shoe
Data Source
AI summary
A device for actuating a brake shoe of a brake, in particular a disk brake, includes a pivotably mountable lever element, and a transmission element configured to be mounted in a longitudinally movable fashion is such that a pivot movement of the lever element is translated into a longitudinal movement of the transmission element wherein a hydraulic chamber configured to be filled with a hydraulic fluid is arranged between the brake shoe and the transmission element for the transmission of force between the brake shoe and the transmission element.