| 摘要 |
<p>The invention relates to a steering lock device including: a steering shaft (17) having an engagement recess (38) to a portion of a circumferential surface, a steering column pipe (18) disposed to the outer circumference of the steering shaft (17) and having an insertion hole (41) at a portion corresponding to the engagement recess (38), a housing (11) mounted to the steering column pipe (18) with a guide projection (11b) being inserted into the insertion hole (41) and defined with a slide hole (42) the top end of which is opened at the guide projection (11b), a cylinder body (12) mounted in the housing (11), a rotor (14) disposed in the cylinder body (12) and rotationally operated by an inserted key (13), a lock pin (39) inserted slidably in the slide hole (42) of the housing (11) and engageable at the top end of the pin (39) with the engagement recess (38), and a lock mechanism (16) actuated in accordance with the rotation of the rotor (14) for conducting engagegment and disengagement of the lock pin (39) with and from the engagement recess (38) switchingly. The following relations are satisfied: <DF>f(Dc) = 0, 0031 Dc<2> - 0, 1375 Dc + 7, 2 </DF> <DF>f(Dc) - 0, 5 <= b <= f(Dc) + 0, 5 </DF> where b is a distance (mm) from the center of the lock pin within a plane orthogonal to the axial line of the steering shaft to the outer surface of the guide projection and Dc is a diameter (mm) of the steering column pipe. <IMAGE></p> |
