A vertical seat motion lock apparatus (10) is provided and includes a seat base (20), a locking system (30) coupled to the seat base (20) and disposable in a locking position, at which the locking system (30) is configured to permit upward seat base moveme...

Piano seat that has a structure for raising and lowering that is formed by two pairs of "L" section profiles arranged in a facing manner, two at the bottom and two at the top, which are connected together by individual pairs of scissor-type mechanisms, the...

[Problem] The present invention relates to a seat lifter capable of changing the height or inclination of an inner side lower arm and outer side lower arm of a seat cushion and addresses the problem of providing a seat lifter wherein the welding position o...