Vehicle headlight

• US 8,096,687 B2
• Filed: 10/30/2009
• Issued: 01/17/2012
• Est. Priority Date: 10/31/2008
• Status: Active Grant

• Current Assignee: Koito Manufacturing Company Limited
• Original Assignee: Koito Manufacturing Company Limited
• Inventors: Tajima, Keiichi
• Primary Examiner(s): Alavi, Ali
• Application Number:
  US12/609,866
• Publication Number:
  US 20100110709A1
• Time in Patent Office: 809 Days
• Field of Search: 362623-625, 362530-532, 362464-466, 362467-468, 362/507, 315/92
• US Class Current: 362/465
• CPC Class Codes: B60Q 1/076 by electrical means including means to transmit the movements, e.g. shafts or joints

Abstract

A vehicle head light includes a lighting casing; a lamp unit disposed in the lighting casing; a support member that supports the lamp unit so as to be rotatable at least in two directions; an actuator that rotates the lamp unit with respect to the support member; and a thrust receiver that receives a load of the lamp unit. The lighting casing includes a lamp housing opened on one side and a cover that closes the opening of the lamp housing. The lamp unit includes a light source and a reflector that reflects light emitted from the light source. The actuator is disposed under the lamp unit. A lower end of the lamp unit is coupled to the actuator. The actuator includes a case member; and a driving mechanism disposed in the case member. The lamp unit is coupled to the driving mechanism. The thrust receiver is integrally provided on the case member of the actuator.

Claims

1. A vehicle head light comprising:

a lighting casing comprising

a lamp housing opened on one side and

a cover that closes the opening of the lamp housing;

a lamp unit disposed in the lighting casing;

a support member that supports the lamp unit so as to be rotatable at least in two directions;

an actuator that rotates the lamp unit with respect to the support member; and

a thrust receiver that receives a load of the lamp unit,

wherein the actuator is disposed under the lamp unit, wherein a lower end of the lamp unit is coupled to the actuator,

wherein the actuator comprises;

a case member; and

a driving mechanism disposed in the case member,

wherein the lamp unit is coupled to the driving mechanism,

wherein the thrust receiver is integrally provided on the case member of the actuator, and

wherein the actuator comprises;

a main unit comprising the driving mechanism; and

a support portion attached to the support member, wherein the main unit moves in a front-rear direction to rotate the lamp unit in a predetermined direction, and wherein the support portion supports the main unit so as to be movable in the front-rear direction.

2. The vehicle headlight according to claim 1, wherein the support member is provided with a support member side engagement portion, wherein the thrust receiver is provided with a receiver side engagement portion that is engaged with the support member side engagement portion, and wherein the receiver side engagement portion is engaged with the support member side engagement portion so that at least a part of the case member of the actuator is attached to the support member.

3. The vehicle headlight according to claim 2, wherein a plurality of said support member side engagement portions of the support member are provided, wherein the case member is provided with an elastically deformable elastic engagement portion, and wherein the elastic engagement portion of the case member is elastically deformed to be engaged with at least one of the support member side engagement portions of the support member.

4. A vehicle head light comprising:

a lighting casing comprising

a lamp housing opened on one side and

a cover that closes the opening of the lamp housing;

a lamp unit disposed in the lighting casing;

a support member that supports the lamp unit so as to be rotatable at least in two directions;

an actuator that rotates the lamp unit with respect to the support member; and

a thrust receiver that receives a load of the lamp unit,

wherein the actuator is disposed under the lamp unit, wherein a lower end of the lamp unit is coupled to the actuator,

wherein the actuator comprises;

a case member; and

a driving mechanism disposed in the case member,

wherein the lamp unit is coupled to the driving mechanism,

wherein the thrust receiver is integrally provided on the case member of the actuator, and

wherein the support member is provided with a support member side engagement portion, wherein the thrust receiver is provided with a receiver side engagement portion that is engaged with the support member side engagement portion, and wherein the receiver side engagement portion is engaged with the support member side engagement portion so that at least a part of the case member of the actuator is attached to the support member.

5. The vehicle headlight according to claim 4, wherein a plurality of said support member side engagement portions of the support member are provided, wherein the case member is provided with an elastically deformable elastic engagement portion, and wherein the elastic engagement portion of the case member is elastically deformed to be engaged with at least one of the support member side engagement portions of the support member.

6. The vehicle headlight according to claim 5, wherein the lamp unit comprising a light source and a reflector that reflects light emitted from the light source.

7. A vehicle head light comprising:

a lighting casing comprising

a lamp housing opened on one side and

a cover that closes the opening of the lamp housing;

a lamp unit disposed in the lighting casing;

a support member that supports the lamp unit so as to be rotatable at least in two directions;

an actuator that rotates the lamp unit with respect to the support member; and

a thrust receiver that receives a load of the lamp unit,

wherein the actuator is disposed under the lamp unit, wherein a lower end of the lamp unit is coupled to the actuator,

wherein the actuator comprises;

a case member; and

a driving mechanism disposed in the case member,

wherein the lamp unit is coupled to the driving mechanism,

wherein the thrust receiver is integrally provided on the case member of the actuator, and

wherein at least a part of the driving mechanism moves in a front-rear direction to rotate the lamp unit in a predetermined direction.

8. The vehicle headlight according to claim 7, wherein the support member is provided with a support member side engagement portion, wherein the thrust receiver is provided with a receiver side engagement portion that is engaged with the member side engagement portion, and wherein the receiver side engagement portion is engaged with the support member side engagement portion so that at least a part of the case member of the actuator is attached to the support member.

9. The vehicle headlight according to claim 8, wherein a plurality of said support member side engagement portions of the support member are provided, wherein the case member is provided with an elastically deformable elastic engagement portion, and wherein the elastic engagement portion of the case member is elastically deformed to be engaged with at least one of the support member side engagement portions of the support member.