US 12,228,172 B2
Guide device and mechanical system comprising such a device
Pierrick Pavallier, Perreux (FR); and Fabrice Prost, Saint-Etienne (FR)
Assigned to HYDROMECANIQUE ET FROTTEMENT, Andrezieux-Boutheon (FR)
Appl. No. 18/008,329
Filed by HYDROMECANIQUE ET FROTTEMENT, Andrezieux-Boutheon (FR)
PCT Filed May 28, 2021, PCT No. PCT/FR2021/050969
§ 371(c)(1), (2) Date Dec. 5, 2022,
PCT Pub. No. WO2022/003264, PCT Pub. Date Jan. 6, 2022.
Claims priority of application No. 2006880 (FR), filed on Jun. 30, 2020.
Prior Publication US 2023/0204067 A1, Jun. 29, 2023
Int. Cl. F16C 17/24 (2006.01); F16C 17/02 (2006.01)
CPC F16C 17/246 (2013.01) [F16C 17/02 (2013.01); F16C 2233/00 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A guide device comprising:
a metal component in the form of a bush provided with a friction surface intended to receive a mating part in frictional contact by sliding with oscillation;
a sensing system of the wear of the friction surface comprising one or more sensors;
a wireless communication system connected to the sensing system and configured to transmit information relating to wear of the friction surface out of the guide device;
characterized in that the sensor or sensors are disposed exclusively on one longitudinal side or on two longitudinal sides of the bush, each longitudinal side being defined over at most two fifths of the length of the annular bush.
 
10. A guide device comprising:
a metal component in the form of a bush provided with a friction surface intended to receive a mating part in frictional contact by sliding with oscillation;
a sensing system of the wear of the friction surface comprising one or more sensors;
a wireless communication system connected to the sensing system and configured to transmit information relating to wear of the friction surface out of the guide device;
characterized in that the sensor or sensors are disposed exclusively on one longitudinal side or on two longitudinal sides of the bush, each longitudinal side being defined over at most two fifths of the length of the annular bush, and the sensing system comprises a conductive strip which is disposed in an annular groove formed on a surface of the metal component opposite to the friction surface and which is connected to each sensor and, to the wireless communication system.