| 摘要 |
An anti-glare mirror for a motor vehicle has a prism mirror (14) incorporated therein and a tilting device for moving the prism mirror (14) between its position of normal use and its anti-glare position, the tilting device including a cam follower (30) on the prosm mirror (14) which engages with a cam (28) driven by an electric motor (26) arranged to rotate in one direction only. The cam (28) has a first zone (34) of constant projection which, when engaged by the cam follower (30), causes the prism mirror (14) to take up its normal orientation, a second zone (38) of constant projection which, when engaged by the cam follower (30), causes the prism mirror (14) to take up its anti-glare orientation, a first ramp (40) leading from a first end of the first zone (34) to a first end of the second zone (38) and a second ramp (36) leading from a second end of the second zone (38) to a second end of the first zone (34). Switch means (46) are arranged to interrupt the supply of electric current to the motor (26) when the cam follower (30) is in engagement either with the first zone (34) of constant projection or with the second zone (38) of constant projection. |
