Patent ID: 11865904
Assignee: YOUNG SUNG GEUM
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 3:
4. The automatic light locking device according to claim 1, further comprising:
a guide unit configured to guide a sliding of the light blocking slider in the light blocking body,
wherein the guide unit comprises:
a guide groove portion provided to one side or both sides of the light blocking slider parallel to the sliding direction of the light blocking slider;
a guide roller portion configured to rotatably insert into and couple to the guide, groove portion; and
a guide shaft portion configured to form a center of rotation of the guide roller portion and to connect the guide roller portion to the light blocking slider, and
a portion of the guide roller portion protrudes from the light blocking slider and is supported by an inner wall of the at least one sliding groove.