| 摘要 |
The invention relates to a portable instrument for measuring the angular play of the steering wheel of a motor vehicle, which can be used for any type, model or size of steering wheels According to the invention, the instrument comprises an intermediate body (1) provided with a ball-shaped handle (2) and with a secant channel (a) wherein a sectorial support (4) is fastened, said sectorial support carrying a circular scale (5) It is also provided with a profiled disk (10) mounted on the intermediate body (1) and it has a raceway (c) inside, the intermediate body (1) having another raceway (d) where several bearing balls (13) are placed, said bearing balls being mounted in a separating cage (14) The profiled disk (10) carries a sleeve (15) and a vernier support (8) on which a circular vernier (6) is mounted by means of some rivets (7), said circular vernier being rotatable in both directions on the circular scale (5) by means of a milled circular slot (b) made in the sectorial support (4) A screw (16) passed through a bore (f) of the intermediate body (1) allows the rotation of the profiled disk (10) about said body due to a circular channel (e) thereof, the intermediate body (1) and the profiled disk (10) being blocked by means of a lever (20) fastened with a screw (19) and a nut (18)
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