Title:
TIRE GROOVE MEASURING DEVICE, TIRE GROOVE MEASURING SYSTEM, AND TIRE GROOVE MEASURING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/188113
Kind Code:
A1
Abstract:
A tire groove measuring device 1 according to an embodiment is a handheld tire groove measuring device that is moved by a user along a tread 31 of a tire 30 to measure grooves 40 formed in the tread 31 of the tire 30. The tire groove measuring device 1 comprises: a range-finding sensor 21 that detects the distance between the tire 30 and the tire groove measuring device 1; and a processing device 10 that computes the depth of each groove 40 on the basis of output data from the range-finding sensor 21. The tread 31 of the tire 30 is provided with main grooves 41 that have a wear indicator 44 and secondary grooves 42 that do not have a wear indicator 44. The processing device 10 detects a plurality of candidate grooves 40 on the basis of the output data from the range-finding sensor 21, selects a first groove having the deepest depth among the plurality of candidate grooves 40, selects, as candidate main grooves 41, grooves 40 having a depth that differs from the depth of the first groove by a first predetermined value Q or less from among the plurality of candidate grooves 40, and selects the value of the shallowest depth among the depths of the respective candidate main grooves 41.
Inventors:
UMEZAWA KAZUHIRO
TAKABA NOBUMICHI
TAKABA NOBUMICHI
Application Number:
PCT/JP2022/016010
Publication Date:
October 05, 2023
Filing Date:
March 30, 2022
Export Citation:
Assignee:
PERSOL AVC TECH CO LTD (JP)
International Classes:
B60C19/00; G01B21/18; G01B11/22
Foreign References:
| JP2020165895A | 2020-10-08 | |||
| JPH01303574A | 1989-12-07 | |||
| JP2019518209A | 2019-06-27 |
Attorney, Agent or Firm:
OKUDA Seiji (JP)
Download PDF: