Patent ID: 11912181
Assignee: NHK SPRING CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A suspension seat comprising a suspension which comprises:
a lower side member that forms a portion of the suspension, at a vehicle lower side in a vehicle vertical direction, and that is coupled to a floor section of a vehicle cabin;
an upper side member that forms a portion of the suspension, at a vehicle upper side in the vehicle vertical direction, that is disposed at the vehicle lower side of a vehicle seat body, and that is configured to support the vehicle seat body from the vehicle lower side;
a suspension link mechanism that includes a vehicle lower side portion coupled to the lower side member and a vehicle upper side portion coupled to the upper side member, and that undergoes displacement so as to displace the upper side member along the vehicle vertical direction;
a linear displacement section that is provided at the suspension link mechanism and is configured to undergo linear displacement in conjunction with displacement of the suspension link mechanism;
a biasing unit that is provided at the vehicle lower side of the upper side member and is configured to bias the upper side member toward the vehicle upper side;
a damping unit that includes an end portion coupled to the suspension link mechanism at the vehicle lower side of the upper side member and that is configured to absorb vibration generated at the suspension link mechanism; and
a locking mechanism that immobilizes the linear displacement section so as to immobilize displacement of the suspension link mechanism, the locking mechanism including a displaceable member having one end portion fixed to the linear displacement section and configured to undergo linear displacement integrally with the linear displacement section along a displacement direction of the linear displacement section, and having another end portion provided with a lockable portion, the locking mechanism including an immobilizing member provided on a side of the another end portion of the displaceable member and including a lock portion formed at a portion of the immobilizing member opposing the lockable portion and configured to immobilize the lockable portion at a position within a displacement range of the displaceable member,
wherein the displaceable member is configured to be displaced linearly along a front-rear direction of the suspension seat, and
wherein the immobilizing member faces the displaceable member in a width direction of the suspension seat and swings about a shaft portion extending along a vertical direction of the suspension seat to engage the lock portion thereof with the lockable portion of the displaceable member.