Wire Spring for Disc Brake Caliper Vibration Damping
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Solution Overview
Problem
Existing disc brake caliper systems experience vibrations and noise due to pad contact with reaction shoulders during braking, as prior solutions with springs fail to effectively dampen vibrations and prevent noise.
Innovation Solution
A wire spring with elastic branches and a connection arm is integrated into the disc brake caliper, preloading the pads against reaction shoulders to prevent sharp impacts and vibrations, utilizing a circular metal wire with coupling sections and eyelets to securely attach to the caliper body and pads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If prior art springs are used to position the pads, then the pads can be held in their housing, but the vibrations and noise caused by pad contact with reaction shoulders cannot be effectively dampened or prevented
Solution Approach 1:
The wire spring is designed to pre-load the pads against the reaction shoulders before braking occurs. This preliminary positioning ensures that when braking forces are applied, the pads are already in contact with the reaction shoulders, preventing sudden impacts and the associated vibrations and noises.
Solution Approach 2:
The invention changes the mechanical parameters of the spring system by using a wire spring with specific elastic properties rather than conventional coil springs. The wire spring provides optimized force characteristics that effectively dampen vibrations while maintaining reliable pad positioning throughout the braking process.
2Object-affected harmful factors
If the wire spring is securely connected to the pads and caliper body, then vibration damping and noise prevention are achieved, but the device complexity increases due to additional coupling sections and eyelets
Solution Approach 1:
The wire spring is divided into distinct functional segments: elastic branches for vibration damping, connection arms for structural attachment, and eyelets for secure connection to the pads. This segmentation allows each part to be optimized for its specific function while maintaining overall simplicity.
Solution Approach 2:
The wire spring structure serves multiple functions simultaneously: it positions the pads, dampens vibrations, prevents noise, and provides secure mechanical connection. The coupling sections and eyelets are designed to fulfill both connection and vibration-damping roles, reducing the need for separate components.
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 wire spring effectively prevents noise and vibrations by preloading pads against reaction shoulders, ensuring smooth contact and reducing impact during braking, thereby minimizing unpleasant noises and stabilizing pad position.
Implementation Method 1
a first elastic branch (40) suitable to elastically influence the first pad (16) against a first reaction shoulder (32')
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
A wire spring (4) for disc brake caliper (12), comprising a first elastic branch (40) suitable to elastically influence a first pad (16), against a first reaction shoulder (32'), a second elastic branch (44) suitable to elastically influence a second pad (20) against a second reaction shoulder (32''), a connection arm (48) between the first and the second elastic branch (40,44) which creates a support and/or a connection of the spring (4) on the caliper body (8). Advantageously, the wire spring (4) comprises at least one coupling section to the caliper body (529 suitable to constrain the spring (4) to the caliper body (8), clasping a section of the caliper body (8), by means of a coupling with clearance.