公开(公告)号：US20230016943A1

公开(公告)日：2023-01-19

申请号：US17954143

申请日：2022-09-27

Applicant: Alps Alpine Co., Ltd.

Inventor： Akihito YAMAMOTO ,  Yoshihiro SUDO ,  Tokuo NAKAMURA ,  Kazushige SEJIMO

IPC: G01M17/02 ,  G01N27/72 ,  B60C11/24

Abstract: A tire wear measurement device, according to the present invention, detects a magnetic field of a magnetic body embedded in a tread portion of a tire and measures the degree of wear of the tire from a change in the magnetic field. The tire wear measurement device includes a first magnetic field detection portion placed at a position at which the magnetic field of the magnetic body can be detected, and a second magnetic field detection portion disposed at a position at which the intensity of the magnetic field of the magnetic body differs from the intensity at the position at which the first magnetic field detection portion is disposed.

公开(公告)号：US20230158837A1

公开(公告)日：2023-05-25

申请号：US18159350

申请日：2023-01-25

Applicant: Alps Alpine Co., Ltd.

Inventor： Yuki IMAI ,  Tokuo NAKAMURA ,  Takafumi NOGUCHI ,  Hiroyuki TOBARI ,  Shinya ICHISE ,  Ryosuke SUZUKI ,  Rie KUROSAWA ,  Heishiro FUDO ,  Eiji SHINOHARA ,  Manabu TAMURA ,  Nobuhiko SUEMATSU

IPC: B60C11/24

CPC classification number: B60C11/243

Abstract: A tire wear measuring device that detects wear of a tire based on a magnetic field from a magnetic object embedded in the tire includes magnetic sensors and a battery. The battery is capable of transmitting the magnetic field from the magnetic object, and has an outer edge from which the magnetic field from the magnetic object is emitted as an emission magnetic field. Each of the magnetic sensors is disposed in a position where the emission magnetic field is detectable by the sensor.