Powered telescoping trailer tow mirror
First Claim
1. A vehicle external review-view mirror assembly having an extension and retraction mechanism for a telescopic arm support that connects a mirror head to a mirror mounting bracket, the assembly comprising:
- a hollow outer arm extending from the bracket;
an inner arm mounted to the head and extending into the outer arm for relative sliding movement out of and into the outer arm;
a driving wheel rotatably mounted to the inner arm or the head;
a driven wheel rotatably mounted to the inner arm and positioned within the outer arm at a location spaced apart from the driven wheel;
a looped transmission member extending between the driving wheel and the driven wheel for power transmission between them;
a pair of laterally spaced apart contact rollers mounted coaxially with the driven wheel, the pair of contact rollers engaging spaced apart bearing surfaces depending from or integral with the outer arm; and
a power transmission arrangement for transmitting power from the driven wheel to the outer arm, wherein rotation of the driving wheel drives the driven wheel through the looped transmission member which causes the outer arm to move telescopically with respect to the inner arm.
1 Assignment
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Accused Products
Abstract
A vehicle external review-view mirror assembly having an extension and retraction mechanism for a telescopic arm support that connects a mirror head to a mirror mounting bracket is disclosed. The assembly comprises: a hollow outer arm extending from the bracket, an inner arm mounted to the head and extending into the outer arm for relative sliding movement out of and into the outer arm; a driving wheel rotatably mounted to the inner arm or the head; a driven wheel rotatably mounted to the inner arm and positioned within the outer arm at a location spaced apart from the driven wheel; and a toothed belt extending between the driving wheel and the driven wheel for power transmission between them. A pair of laterally spaced apart contact rollers are mounted coaxially with the driven wheel, the pair of contact rollers engaging spaced apart bearing surfaces depending from the outer arm.
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Citations
17 Claims
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1. A vehicle external review-view mirror assembly having an extension and retraction mechanism for a telescopic arm support that connects a mirror head to a mirror mounting bracket, the assembly comprising:
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a hollow outer arm extending from the bracket;
an inner arm mounted to the head and extending into the outer arm for relative sliding movement out of and into the outer arm;
a driving wheel rotatably mounted to the inner arm or the head;
a driven wheel rotatably mounted to the inner arm and positioned within the outer arm at a location spaced apart from the driven wheel;
a looped transmission member extending between the driving wheel and the driven wheel for power transmission between them;
a pair of laterally spaced apart contact rollers mounted coaxially with the driven wheel, the pair of contact rollers engaging spaced apart bearing surfaces depending from or integral with the outer arm; and
a power transmission arrangement for transmitting power from the driven wheel to the outer arm, wherein rotation of the driving wheel drives the driven wheel through the looped transmission member which causes the outer arm to move telescopically with respect to the inner arm. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A vehicle external review-view mirror assembly having an extension and retraction mechanism for a pair of telescopic arm supports that connect a mirror head to a mirror mounting bracket, the assembly comprising:
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a pair of spaced apart substantially parallel hollow outer arms extending from the bracket;
a pair of spaced apart substantially parallel inner arms mounted to the head and extending into respective outer arms for relative sliding movement out of and into respective outer arms;
a drive motor mounted to the head;
a drive shaft mounted to the head and extending between the inner arms;
a pair of spaced apart driving wheels mounted to the drive shaft at opposite ends thereof and positioned substantially in line with respective inner arms; and
a pair of arm drive mechanisms extending from respective drive wheels into respective outer arms, each arm drive mechanism having a looped transmission member extending into its respective outer arm to a driven wheel, wherein the drive motor drives the outer arms to move telescopically with respect to their respective inner arms. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification