Adjustment device for a vehicle light emitting module

Abstract

The present disclosure relates to an adjustment device for a light emitting module of a vehicle. The adjustment device includes a light emitter support unit and adjustment conversion unit where the light emitter support unit includes a rotatable light emitter bracket configured to support a light emitter; the adjustment conversion unit includes an adjustment conversion structure and a translation member provided with a receiving part; a first support part of the light emitter bracket is moveably received in the receiving part; the adjustment conversion structure is configured to convert adjustment movements into translational movements via the translation member, thereby causing lamp bracket rotation; and the first support part is in contact with an inner wall’s annular section of the receiving part.

1 . An adjustment device of an automotive light emitting module, the adjustment device comprising:
 a light emitter support unit and an adjustment conversion unit, wherein the light emitter support unit includes a rotatable light emitter bracket that is configured to support a light emitter;   the adjustment conversion unit including an adjustment conversion structure;   a translation member provided with a receiving part that forms a receiving hole;   a first support part of the rotatable light emitter bracket configured to be moveably received in the receiving part;   wherein the adjustment conversion structure includes an adjustment gear member,   wherein the adjustment conversion unit is configured to convert a rotational movement of the gear member into a translation movement of the translation member such that the translation movement of the translation member is configured to cause rotation of the light emitter bracket;   wherein the first support part contacts an annular section of an inner wall of the receiving part;   wherein the first support part is either columnar with a constant cross-section and with the annular section of the inner wall of the receiving part having a narrowing portion in a longitudinal direction of the receiving part where a cross-sectional size of the narrowing portion matches a cross-sectional size of the first support part such that the first support part interfaces with the inner wall of the receiving part only at the annular section of the inner wall, or has a spherical section having a diameter greater than dimensions of other sections of the first support part, the receiving hole of the receiving part being a columnar hole of a constant cross section and of a diameter that matches a diameter of the spherical section, and wherein, there is a linear contact between the first support part and the inner wall of the receiving part.   
     
     
         2 . The adjustment device of  claim 1 , wherein the narrowing portion is provided in an end of the receiving part. 
     
     
         3 . The adjustment device of  claim 2 , wherein, the narrowing portion is provided in the middle of the receiving part. 
     
     
         4 . The adjustment device of  claim 1 , wherein the receiving part is made of plastic. 
     
     
         5 . The adjustment device of  claim 4 , wherein the receiving part is made of a plastic material having a toughness characteristic of PBT-GF30. 
     
     
         6 . The adjustment device of  claim 1 , wherein the adjustment conversion structure includes an adjustment gear member and a gear sheath member;
 the adjustment gear member including a gear end and an adjustment end configured to mate with an adjustment tool;   the gear end is provided with a first gear portion;   the gear sheath member has a head;   the head is provided with a second gear portion; and   the first gear portion and the second gear portion are engaged with each other.   
     
     
         7 . The adjustment device of  claim 6 , wherein the gear sheath member has a screw hole, the translation member has a screw rod, and the screw rod is engaged into the screw hole. 
     
     
         8 . The adjustment device of  claim 9 , wherein the adjustment device further includes a support member configured to guide the translation member. 
     
     
         9 . The adjustment device of  claim 8 , wherein the support member has a stop configured to limit displacement of the translation member. 
     
     
         10 . A light emitting module comprising the adjustment device of  claim 1 . 
     
     
         11 . An adjustment device of a vehicle’s light emitting module configured to adjust aiming of an illumination angle, the adjustment device comprising:
 a rotatable light emitter bracket mounted on a translation member configured to support a light emitter; the translation member provided with a single screw rod; 
 a support member configured to guide the translation member by means of an adjustment conversion structure, wherein the adjustment conversion structure includes an adjustment gear member and the gear sheath member and the single screw rod; 
 the gear sheath member including a head and an elastic clip that is split apart through an end of the elastic clip; 
 a longitudinal axis of the adjustment gear member set orthogonal to a longitudinal axis of the gear sheath member in the installed position; 
 the adjustment gear member inserted into an opening of a housing and configured to directly engage the gear sheath member that traverses a through-hole of the support member; 
 the elastic clip configured to elastically deform and secure the gear sheath member with insertion of the gear sheath member through the through hole of the support member; and wherein the adjustment conversion structure is configured to convert a movement of the adjustment gear member into a movement of the translation member thereby causing rotation of the rotatable light emitter bracket.