Patent ID: 11938847
Assignee: DAS CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A stepless brake device of a vehicle seat,
wherein an input member and an unlock member are disposed on one side of a housing, and a braking member, a fixing member, and a gear member are disposed on the other side of the housing,
wherein a housing cover surrounding the input member is disposed on the one side of the housing,
wherein a plate cover preventing separation of the braking member and the gear member is disposed on the other side of the housing,
wherein a plurality of coupling pieces formed on the plate cover is caulked and coupled to the housing cover in a state where the housing cover and the plate cover are compressed in a direction toward each other,
wherein the unlock member has a plurality of unlock protrusions formed around a circumference of the unlock member,
wherein corners on both sides of an end portion of the unlock protrusion are formed as inclined surfaces,
wherein a concave round groove is formed in each of the inclined surfaces,
wherein a straight guide groove is formed in a radially outer surface of the unlock member in an operation direction of the unlock member, and
wherein a straight guide protrusion which is inserted into the guide groove is formed on an inner surface of a border portion of the housing.