Brake Pad Spreader Socket Design for Hard Caliper Separation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current specialty tools for replacing automotive disc brake pads require excessive manual effort due to difficulty in separating calipers, especially when calipers are hard to separate, making the process cumbersome and inefficient.
Innovation Solution
A disc brake pad spreader tool with a screw rod, impingement plates, and an actuator that allows for leveraging additional force using a ratchet wrench or pneumatic impact wrench, facilitating easier piston cranking and pad replacement by providing a means to apply rotational force through a conventional ratchet wrench or pneumatic impact wrench.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a threaded rod is used to separate brake pads, then the tool can compress the disc brake piston for easy pad installation, but excessive manual effort is required when calipers are hard to separate
Solution Approach 1:
The patent employs a pneumatic impact wrench to deliver high-impact rotational force to the threaded rod, enabling the tool to overcome hardened caliper separation resistance without requiring excessive manual effort from the operator. The pneumatic system converts compressed air energy into powerful mechanical impacts that drive the threading action.
Solution Approach 2:
The patent replaces the purely manual mechanical turning operation with a powered pneumatic impact system. The pneumatic impact wrench substitutes for manual rotation, providing amplified force multiplication that easily penetrates hardened caliper assemblies while reducing operator physical strain.
2Productivity
If manual rotation of the threaded rod is used, then the tool structure remains simple, but the productivity decreases due to excessive manual effort and time
Solution Approach 1:
The pneumatic impact wrench provides rapid, high-force rotational impulses that dramatically accelerate the threaded rod advancement through the caliper piston, reducing pad replacement time from minutes to seconds. This pneumatic assistance maintains relatively simple tool structure while maximizing productivity through external power assistance.
Solution Approach 2:
The pneumatic impact wrench delivers periodic high-impact rotational forces rather than continuous manual turning. These rapid intermittent impacts efficiently drive the threaded rod through resistance, achieving faster pad separation and replacement while keeping the tool design relatively simple.
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
Enables easier and more efficient replacement of disc brake pads by providing additional force to assist in cranking the caliper piston, reducing manual effort and making the process more manageable, especially in cases where calipers are difficult to separate.
Implementation Method 1
The actuator includes a hand grip portion and a female receiving socket adapted for attachment to a drive rod of a conventionally available ratchet wrench or pneumatic impact tool, providing a means for leveraging additional force to assist with cranking in the piston on the caliper
Data Source
AI summary
An improved brake pad spreader tool has a screw rod separating an impingement plate and an impingement cap. An actuator is affixed to the proximal end and has a polygonal handle portion forming a hand grip and a female receiving socket at a rotational center point of the hand grip. The female receiving socket forms a rectangular recess adapted for attachment to a drive rod of a ratchet wrench or pneumatic impact tool. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.