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    • 9. 发明专利
    • SPEEDOMETER FOR VEHICLE
    • JPS61144575A
    • 1986-07-02
    • JP26523084
    • 1984-12-18
    • HONDA LOCK KK
    • ONITSUKA NOBUYUKIIZU NOBORU
    • G01P3/495G01P1/08G01R5/20
    • PURPOSE:To make assembling easy and to increase mass productivity by fixing with locking the free end of a coil spring to locking arm and by combining and fixing magnetically the bearing surface of the upper body with joining to the upper face of the underbody. CONSTITUTION:The upper end 22a of the pointer spindle 22 of the pointer unit consisting of the pointer spindle 22, speed cup 23, coil spring 24 and oil cup 25 is pivoted with inserting into the upper metal 21 of upper body 20. The upper end 22a of the spindle 22 is held with suspending with pressure-fitting a collar 27 via thrust washer 26 and the free end 24a of the coil spring 24 is fixed with locking to a locking arm 20f. The annular bearing surface of the bottom surface 20a of the body 20 is then joined to the upper face of the underbody 4 fitting the driving unit which is composed of a yoke 5, magnet 6 and rotary shaft 7. The peripheral wall of the speed cup 23 is combined magnetically with rotatably fitting to the annular gap between the inner peripheral face of the york 5 and the outer peripheral face of the magnet 6, namely to the inside of magnetic path 12 and by binding the bearing surface of the body 20 and the upper face of the body 4 the automatic assembly with easier assembling is enabled.