Electric Steering Lock

Abstract

The present invention provides an electric steering locking device which enables the position precision of a substrate relative to a shell to be improved and can detect the position of a locking member at a high precision. The electric steering locking device (1) comprises the locking member (6), a motor (13), a driving mechanism, a magnet fixed to the locking member, the substrate (15) equipped with first and second hall elements (magnetic force detection elements )(16, 17), and the shell composed of a casing (3) and a cover (4). The electric steering locking device is formed by arranging a substrate accepting part (3B) in the shell and fixing a positioning member (21) in the substrate (15). Embedding holes (15a, 15b) are formed on the substrate (15), a protrusion (21d) and a rib (21e) are formed on the positioning member (21), and a concave part (21f) is formed at the periphery of the base end part of the protrusion part (21d), wherein the rid (21e) is protruded the periphery of the protrusion part (21d) and can be pressed. By embedding the protrusion part (21d) of the positioning member (21) in the embedding holes (15a, 15b) of the substrate (15) in a pressing manner, the positioning member (21) is fixed to the substrate (15).

Description

technical field [0001] The present invention relates to an electric steering lock device for electrically locking the rotation of a steering wheel when a vehicle is parked. Background technique [0002] In recent years, some vehicles are equipped with an electric steering lock device that electrically locks the rotation of the steering wheel when the vehicle is parked for the purpose of preventing theft. In this electric steering lock device, for example, when the driver turns off the engine start switch while the engine is running, it is detected to drive the motor, and the lock member is moved by the motor to move the lock member. Engaged with the steering shaft to lock the rotation of the steering wheel, when the driver turns on the engine start switch while the engine is stopped, it is detected to drive the motor, and the lock member is moved by the motor to The engagement of the lock member to the steering shaft is released to unlock the steering wheel and enable steer...

AI Technical Summary

Problems solved by technology

[0011] However, in the structure proposed by patent document 2, the positioning member is fixed to the board|substrate by simply press-fitting the convex part protruded from the positioning member into the fitting hole formed in the board|substrate. way, therefore, the convex portion of the positioning member is deformed by fitting and enters between the substrate and the positioning member, and therefore, a gap may be generated

In this way, when a gap is generated between the positioning member and the substrate, the position of the substrate in the housing becomes inappropriate, and the position of the magnetic detection element provided on the substrate also becomes inappropriate. Therefore, the position detection of the locking member occurs. problems such as reduced precision

Images