# US 5,347,858 A · Wear-detection probe for a brake lining material

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 5,347,858 A
- Document ID: US5347858A
- Status: Granted
- Kind: A
- Application number: 07/987,456
- Filed: 1992-12-07
- Granted: 1994-09-20
- Earliest claimed: 1991-12-12
- Assignees: Sumitomo Wiring Systems, Ltd.
- Inventors: Katsuya Ito; Fumiyoshi Tanigawa
- Web page: https://patentgrep.com/patent/US5347858A

## CPC

- F16D 66/024: {Sensors mounted on braking members adapted to contact the brake disc or drum, e.g. wire loops severed on contact}
- F16D: COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES

## Abstract

A wear-detection probe for a brake lining material comprises: a detection conductor which-extends a given length toward the rotor from the side of the brake lining material facing away from the rotor; a probe body housing supporting the detection conductor; a probe connector housing detachably connected to tile probe body housing; and a pair of terminals supported in the probe connector housing, the terminals contacting the detection conductor when the probe connector housing is connected to the probe body housing. The conductor either contacts the rotor or is cut off by the rotor when a predetermined thickness remains in the brake lining material due to wear. Since it is possible to exchange probes without exchanging harnesses, the cost for replacing the probe is greatly reduced.

## Claims

### Claim 1

A wear-detection probe for a brake lining material wherein a conductor is either contacted with a rotor or cut off by a rotor when a predetermined thickness remains in the brake lining material due to wear, comprising:
a thin, flat plate detection conductor which extends a given length toward the rotor from a side of the brake lining material facing away from the rotor;
a probe body housing supporting said detection conductor and including an insertion portion, whereby only said insertion portion is embedded in the brake lining material;
a probe connector housing detachably connected to said probe body housing; and
a pair of terminals supported in said probe connector housing, said terminals being contacted with said detection conductor when said probe connector housing is connected to said probe body housing.