Honda Motor Co., Ltd.
TIGHTENING DEVICE

Abstract:

Provided is a tightening device capable of easily capturing a change in a contact state of a member to be tightened such as a bolt or the like and also reliably performing fastening. A tightening device (10) tightens a bolt (A) to a work piece (B) in a state where a main body (11) is engaged with the bolt (A), and includes: a magnet (11b) that holds the bolt (A) with respect to the main body (11); and lower cam members (15) that enable fixation in a fixed state where a binding force on the bolt (A) is larger than that in the held state by the magnet (11b). The lower cam member (15) is capable of maintaining the fixed state before the tightening work of tightening the bolt (A) to the work piece (B) is performed and releasing the fixed state after the tightening work is started.