Disk Brake Pad Spring Guide Plate Groove Alignment
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Solution Overview
Problem
The attachment of friction pads to the mount member in disk brakes is cumbersome due to the shape of pad springs, reducing work efficiency.
Innovation Solution
The disk brake design includes support portions with groove portions on the mount member, where the pad spring has a guide plate portion that fits against the groove, and a guide protruding portion extending obliquely to facilitate smooth alignment and attachment of the friction pads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the pad spring is installed on the mount member before attaching the friction pad, then the friction pad can be securely held, but the attachment process becomes cumbersome and work efficiency decreases
Solution Approach 1:
The pad spring is pre-installed on the mount member with its guide plate portion positioned in the groove portion before the friction pad is attached. This preliminary arrangement of the spring in the grooved position enables the protruding portion of the friction pad to be guided during attachment, securing reliable holding while maintaining efficient attachment process.
2Reliability
If the pad spring has a complex shape to ensure proper positioning, then the friction pad can be securely attached, but the attachment process becomes more difficult
Solution Approach 1:
The pad spring is divided into distinct functional portions: a guide plate portion that fits into the groove portion for positioning, and a spring portion that provides the holding force. The mount member is segmented with groove portions that guide the guide plate portion. This segmentation allows each part to perform its specific function independently, ensuring proper positioning while simplifying the attachment operation.
Solution Approach 2:
The guide plate portion of the pad spring acts as an intermediary element between the mount member and the friction pad. It fits into the groove portion of the mount member to establish proper positioning, and then guides the protruding portion of the friction pad during attachment. This intermediary structure ensures accurate positioning without requiring complex shapes in other components.
Data Source
AI summary
A disk brake capable of improving work efficiency when a friction pad is attached to a mount member. Ear portions of a friction pad are inserted in pad guides of a mount member. A side push spring, which pushes the friction pad in a rotational direction of the disk, is provided at the friction pad. A pad spring is disposed between the mount member and the friction pad. The pad spring includes a guide plate portion and a guide protruding portion. The guide plate portion is attached so as to be able to abut against the pad guide of the mount member, and functions to guide the friction pad in an axial direction of the disk. The guide protruding portion extends from an outer-side portion of this guide plate portion toward an outer side in the disk axial direction. The guide protruding portion is inclined in the disk rotational direction.