Disc Brake Pad Gap Measurement Tool Without Wheel Removal
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Solution Overview
Problem
Current methods for measuring the distance between disc brake pads and brake discs require detaching the wheel, making the process time-consuming and complicated.
Innovation Solution
A measuring tool comprising a base, first and second tubes, a front rod, a measuring rod, and a spring, allowing for the measurement of the distance between brake pads and brake discs without detaching the wheel by using a pivot mechanism and spring force to maintain contact with the brake disc while rotating to display the measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a thickness/gap gauge is used to measure the distance between brake pads and brake disc, then measurement accuracy is improved, but the process becomes time-consuming and complicated due to wheel detachment requirement
Solution Approach 1:
The patent introduces a specialized measuring tool as an intermediary device that can be inserted between the brake pad and brake disc through the wheel hub opening. This tool includes a ruler scale and a pivot mechanism with a contact pin that touches the brake disc surface, allowing direct measurement of the gap distance without requiring wheel removal. The intermediary tool bridges the measurement function with the constrained access environment.
Solution Approach 2:
The patent transitions from a traditional linear gap measurement approach to a rotational measurement approach. The measuring tool utilizes the rotational movement of the brake disc or wheel assembly, combined with a pivot mechanism that swings between the brake pad and brake disc, to measure the gap distance. This dimensional change allows measurement through the wheel hub opening without disassembly.
2Ease of operation
If the wheel is detached to expose the disc brake device, then accessibility for measurement is improved, but the procedure becomes more complicated and time-consuming
Solution Approach 1:
The measuring tool serves as an intermediary that enables measurement through the wheel hub opening without requiring wheel removal. The tool includes a handle, ruler scale, and pivot mechanism that can be inserted and operated through the existing opening, providing accessibility while avoiding the complexity of wheel detachment and reattachment procedures.
Solution Approach 2:
The measuring tool is designed to be self-contained and portable, allowing the technician to perform the measurement independently without requiring additional equipment or disassembly operations. The tool includes its own pivot mechanism, contact pin, and reading scale, enabling the measurement to be performed directly in the wheel assembly without external assistance or complex setup.
3Measurement precision
If a traditional thickness/gap gauge is used, then measurement capability is provided, but the tool cannot maintain consistent contact with the brake disc during rotation
Solution Approach 1:
The patent incorporates a dynamic pivot mechanism that allows the contact pin to swing and maintain continuous contact with the rotating brake disc surface. The pivot joint enables the measurement tool to adapt to the rotational movement, ensuring consistent contact between the contact pin and brake disc throughout the rotation cycle, thereby improving measurement reliability.
Solution Approach 2:
The measuring tool utilizes the rotational parameter of the brake disc or wheel assembly to enable measurement. By allowing the contact pin to pivot and track the rotational movement, the tool maintains consistent contact with the brake disc surface throughout the rotation, transforming the rotational parameter into a reliable measurement basis.
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 quick and easy measurement of the distance between brake pads and brake discs without wheel detachment, facilitating timely brake pad replacement decisions.
Implementation Method 1
a spring (6), wherein the spring (6) is disposed in the interior of the second tube (3), the front end of the spring (6) abuts against the rear end of the front rod (4), and the rear end of the spring (6) abuts against the front end of the base (1)
Data Source
AI summary
A measuring tool for disc brake device brake pad, which includes a base, a first tube, a second tube, a front rod, a measuring rod, and a spring, wherein the first tube is configured at the front end of the base, the first tube is perforated with a sighthole. The second tube is pivoted in the first tube, and a marking is formed on the exterior of the midsection of the second tube. The front rod is configured at the front end of the second tube, and a pivot hole axially penetrates the front end of the front rod. The measuring rod pivotal penetrates the front rod, the second tube, and the first tube. The rear end of the measuring rod is inserted into the center of the front end of the base. A contact pin extends in a curved sideward direction from the front end of the measuring rod, and the contact pin abut against the front end of a protruding portion. The spring is disposed in the interior of the second tube, and the two ends of the spring respectively abut against the front rod and the base.