Minebea Mitsumi Inc.

Shimano Inc.

Tomoaki Watanuki

Toshio Tetsuka

Fumiaki Yoshida

Shintaro Mori

Kui Li

Akira Muto

Kiyoshi Omori

Toru Arai

Hiroyuki Omae

A bicycle crank arm assembly basically includes a bicycle crank arm and first to third detecting circuits. The first detecting circuit is configured to detect a force acting in a first direction. The second detecting circuit is configured to detect a force acting in a second direction. The third detecting circuit is configured to detect a moment. The first detecting circuit includes a first strain sensor that is mounted to an attachment surface. The second detecting circuit includes a second strain sensor that is mounted to the attachment surface. The third detecting circuit includes a third strain sensor that is mounted to the attachment surface.

Bicycle crank arm assembly

A pressure sensor includes a sensor member including a sensor face to which pressure is imparted and a cover member that covers at least part of the peripheral face of the sensor member while exposing the sensor face out of one end side. With such a configuration, the sensor member can be protected from a lateral force (side pressure), whereby the sensor member can be prevented from being broken by the application of the side pressure to the sensor member.

Pressure sensor and apparatus

Growing community of inventors

Nagano, Japan

Tomoaki Watanuki