公开(公告)号：US20190225125A1

公开(公告)日：2019-07-25

申请号：US15877743

申请日：2018-01-23

申请人： GUMCHANG. CO., LTD. ,  ASAN GUMCHANG CO., LTD.

发明人： Jae-Yel SONG ,  Hai-Tai CHOI ,  Cheol HEO ,  Sae-Gil SHIN ,  Hyang-Mo NAM ,  Sang-Ho LEE ,  Ho-Young CHOI ,  Min-Sung KIM ,  Ho-Gil JEONG ,  Sung-Su PARK

IPC分类号： B60N2/66

摘要： A vehicle seat lumbar support including: brackets located on both sides of a seat back frame; a fixing unit having guides for guiding an operating unit and a driver including a motor having a driving shaft, a worm fitted to the driving shaft of the motor, a worm gear rotating by the worm, and a pinion gear fitted to a shaft of the worm gear; and an operating unit driven by the driver and including a block band having base blocks having hooks formed on underside surfaces thereof, a base band for locking the hooks of the base blocks thereonto in such a manner as to be coupled to the guides on top and underside of one side thereof, and a rack gear formed on the base band in such a manner as to engage with the pinion gear fitted to the shaft of the worm gear.

公开(公告)号：US20210246702A1

公开(公告)日：2021-08-12

申请号：US17148131

申请日：2021-01-13

申请人： GUMCHANG. CO., LTD.

发明人： Jae-Yel SONG ,  Hai-Tai CHOI ,  Sae-Gil SHIN ,  Sang-Ho LEE ,  Yong-Hyeon JOO

IPC分类号： E05F3/20 ,  B62D25/12 ,  E05F3/18 ,  E05D3/02 ,  E05D5/06

摘要： Disclosed is a hinge assembly for rotatably mounting a trunk lid to a vehicle body. The hinge assembly for a trunk lid of a vehicle, includes a hinge arm configured to be coupled to the trunk lid, a hinge bracket configured to be coupled to a vehicle body and having a hinge shaft, the hinge arm being rotatably coupled to the hinge bracket, a torsion bar configured to be coupled to the hinge arm and to provide an elastic force to the hinge arm in an opening direction, and a cushion assembly provided at one end of the hinge arm adjacent to the hinge shaft and configured to adjust a rotation speed of the hinge arm in response to the elastic force of the torsion bar.

公开(公告)号：US20200238878A1

公开(公告)日：2020-07-30

申请号：US16257995

申请日：2019-01-25

申请人： GUMCHANG. CO., LTD.

发明人： Jae-Yel SONG ,  Hai-Tai CHOI ,  Chae-Sung SONG ,  Sae-Gil SHIN ,  Sang-Ho LEE ,  Min-Sung KIM ,  Sung-Su PARK ,  Sung-Jin BAEK ,  Yong-Hyeon JOO

IPC分类号： B60N2/90 ,  B60N2/02

摘要： A side bolster tilting system of a vehicular seat cushion is provided where a worm portion formed on a rotation shaft of a motor is meshed with a worm gear provided to a female threaded tubular shaft in a lower space of a side bolster, a screw shaft engaged to a lifting member in an idling mode is threaded to an upper portion of the female threaded tubular shaft so that the screw shaft is moved up and down by forward or reverse rotation of the female threaded tubular shaft, and an upper portion of the lifting member is fixed to a support plate for supporting the side bolster. By operation of the motor, the side bolster is moved up and down to provide a driver with convenience when the driver gets on or off, and a leather portion of the side bolster is prevented from being worn out.