Control device for quick angle adjustment of rearview mirror
First Claim
1. A control device for quick angle adjustment of a rearview mirror for controlling a quick angle adjusting mechanism which quickly changes a tilt angle of a mirror of a rearview mirror assembly for a vehicle so as to move the mirror between a normal position and a reverse position, the control device comprising:
- a direct current power supply for generating a direct current voltage;
a quick angle adjusting motor for use in changing quickly and radically the tilt angle of the mirror;
a reversible switch connected between said direct current power supply and said quick angle adjusting motor, said reversible switch being adapted to invert a direct current voltage from said direct current power supply in a forward or reverse direction to supply it to said quick angle adjusting motor;
an operational switch for quick angle adjustment for use in operating said quick angle adjusting motor;
reverse gear recognition means mounted on the vehicle to detect that a shift lever for changing gear positions is at a position corresponding to a reverse gear;
a reversible switch circuit that connects said reversible switch in the forward direction only when said quick angle adjusting switch is turned ON after said reverse gear recognition means detects the shift lever is at the position corresponding to the reverse gear, and otherwise said reversible switch circuit connecting said reversible switch in the reverse direction; and
a rotation control circuit that rotates said quick angle adjusting motor towards a reverse position side when said reversible switch is connected in the forward direction, and rotates said quick angle adjusting motor towards a normal position side when said reversible switch is connected in the reverse direction while said rotation control circuit disconnecting supply of a voltage to said quick angle adjusting motor when each rotation operation is terminated.
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Accused Products
Abstract
In a control device for quick angle adjustment of a rearview mirror for a vehicle of the present invention, a reversible switch is connected in the forward direction only when an operational switch for quick angle adjustment is operated after a shift lever is displaced to a reverse gear position. This rotates a quick angle adjusting motor to tilt a mirror angle of the mirror assembly to a reverse position. The mirror angle does not change automatically to the reverse position when the reverse gear is selected merely to reverse a vehicle. Accordingly, change of the mirror angle against the driver'"'"'s intention can be avoided. When a tilt angle of the mirror is at the reverse position, the reversible switch can be connected in the reverse direction by means of displacing the shift lever from the reverse gear position to any other position or by means of turning OFF the operational switch for quick angle adjustment, which enables the mirror to return to its normal position easily, positively and radically. Accordingly, the tilt angle of the mirror can be changed easily and accurately, which proves the highly improved operation.
317 Citations
6 Claims
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1. A control device for quick angle adjustment of a rearview mirror for controlling a quick angle adjusting mechanism which quickly changes a tilt angle of a mirror of a rearview mirror assembly for a vehicle so as to move the mirror between a normal position and a reverse position, the control device comprising:
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a direct current power supply for generating a direct current voltage; a quick angle adjusting motor for use in changing quickly and radically the tilt angle of the mirror; a reversible switch connected between said direct current power supply and said quick angle adjusting motor, said reversible switch being adapted to invert a direct current voltage from said direct current power supply in a forward or reverse direction to supply it to said quick angle adjusting motor; an operational switch for quick angle adjustment for use in operating said quick angle adjusting motor; reverse gear recognition means mounted on the vehicle to detect that a shift lever for changing gear positions is at a position corresponding to a reverse gear; a reversible switch circuit that connects said reversible switch in the forward direction only when said quick angle adjusting switch is turned ON after said reverse gear recognition means detects the shift lever is at the position corresponding to the reverse gear, and otherwise said reversible switch circuit connecting said reversible switch in the reverse direction; and a rotation control circuit that rotates said quick angle adjusting motor towards a reverse position side when said reversible switch is connected in the forward direction, and rotates said quick angle adjusting motor towards a normal position side when said reversible switch is connected in the reverse direction while said rotation control circuit disconnecting supply of a voltage to said quick angle adjusting motor when each rotation operation is terminated. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification