Device for adjusting the inclination of the light axis of headlamps of a motor vehicle
AssigneeIchikoh Industries, Ltd.
InventorKenkichi Igura
Life of this patent
Estimating the term…
Abstract
A light axis adjusting device for use to the headlamps of motor vehicles comprising casings, a motor arranged in the casings, a speed reduction mechanism arranged in the casings and functionally connected to the motor and a hollow gear, respectively, to reduce the output of the motor and transmit it to the hollow gear, a sleeve inserted into the hollow gear and moved linearly when the hollow gear is rotated, a converting mechanism for converting the rotation of the hollow gear to a force which causes the sleeve to be moved linearly, and a driver shaft passed through the sleeve to control and adjust the light axis of the headlamp, following the movement of the sleeve.
Claims6
In a device for adjusting the inclination of a light axis of a headlamp by controlling a light axis changing mechanism which changes the light axis of a headlamp in relation to a car body, said light axis changing mechanism comprising:
- a mounting means arranged on a side of the headlamp;
- a ball joint for cooperating with the mounting means to achieve a ball socket joint;
- and
- a connector rod means one end of which is connected to the ball joint;
- and said light axis adjusting device comprising:
- a casing;
- a motor arranged in the casing;
- a hollow gear means arranged to be rotatable in the casing;
- a speed reduction mechanism arranged in the casing and connected to the motor and the hollow gear means to reduce the output of the motor and transmit it to the hollow gear means;
- a sleeve inserted into the hollow gear means and moved linearly when the hollow gear means is rotated;
- a means for converting the rotation of the hollow gear means to a force which causes the sleeve to be moved linearly;
- and
- an adjusting rod means connected with an end of said connector rod means by a ball joint mechanism which is constructed by a spherical socket provided at the end of one of said rod means and having slit, and a ball means formed at the end of the other of said rod means and having projection engaged with said slit for coupling said spherical socket and ball means in the manner that both rod means can swing freely with respect to each other but rotate integrally;
- said adjusting rod means being reciprocated with the connector rod means, following the movement of the sleeve to adjust the inclination of the light axis of the headlamp.
Dependencies are inferred from the claim text.