Powered vehicle mirror
First Claim
1. A powered vehicle mirror comprising:
- a housing supporting a mirrored element and defining an interior cavity;
a support shaft extending through said interior cavity and having end portions attachable to a vehicle;
brake means for imparting a braking force between said housing and said support shaft to resist pivotal motion of said housing;
a drive motor supported within said interior cavity; and
drive coupling means including a threaded shaft rotated by said drive motor, a first threaded shuttle received upon said threaded shaft and linkage means coupled between said first threaded shuttle and said support shaft pivoting said housing in response to operation of said drive motor.
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Accused Products
Abstract
A powered vehicle mirror includes a support shaft securable to a pair of support brackets in a fixed attachment. A mirror housing supports a mirror and defines an interior cavity through which the support shaft extends. A bidirectional motor and speed reduction gear mechanism is coupled to a rotatable threaded shaft having a pair of threaded shuttles supported thereby. A multiple arm linkage mechanism is coupled between the threaded shuttles and the support shaft such that rotation of the threaded shaft during motor energizing causes the threaded shuttles to be drawn closer together or spread farther apart and produce a rotational force against the support shaft which operates to pivot the mirror. A solenoid brake mechanism is operative to captivate a brake plate and prevents run-on or overshoot during mirror angular changes. In an alternate embodiment, a threaded shaft is driven by the motor and speed reduction unit and receives a single threaded shuttle which is coupled to a stationary support shaft to provide rotational motion of the powered mirror. In an still further alternate embodiment, a frictional brake mechanism is continuously operative to minimize overshoot and run-on of the powered mirror during rotation.
28 Citations
13 Claims
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1. A powered vehicle mirror comprising:
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a housing supporting a mirrored element and defining an interior cavity; a support shaft extending through said interior cavity and having end portions attachable to a vehicle; brake means for imparting a braking force between said housing and said support shaft to resist pivotal motion of said housing; a drive motor supported within said interior cavity; and drive coupling means including a threaded shaft rotated by said drive motor, a first threaded shuttle received upon said threaded shaft and linkage means coupled between said first threaded shuttle and said support shaft pivoting said housing in response to operation of said drive motor. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A powered vehicle mirror comprising:
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a housing supporting a mirrored element and defining an interior cavity; a support shaft extending through said interior cavity and having end portions attachable to a vehicle; a drive motor supported within said interior cavity; and drive coupling means having a threaded shaft defining first and second oppositely threaded portions, first and second threaded shuttles received upon said first and second threaded portions respectively and linkage means coupled between said first and second threaded shuttles and said support shaft pivoting said housing in response to operation of said drive motor. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification