Relaxation seat for vehicle

A relaxation seat for a vehicle, the relaxation seat comprising:

• a seat cushion lower frame configured to be mounted on a seat rail;
• a seat cushion upper frame connected to the seat cushion lower frame in a tilting-enabled manner;
• a seat back frame connected to the seat cushion upper frame;
• a locking device mounted at a predetermined position on the seat cushion upper frame;
• a front link hinge-connecting between the seat cushion upper frame and a front end portion of the seat cushion lower frame;
• a rear link hinge-connecting between the seat cushion upper frame and a rear end portion of the seat cushion lower frame;
• a support bar connecting between the locking device and the front link in a manner that is movable backward and forward and configured to support the front link for rotation or fixation thereof;
• a pinion gear connected to an inner portion of the locking device mounted on the seat cushion upper frame, wherein the pinion gear is rotatable when the locking device performs an unlocking operation;
• and
• a rack gear provided on an upper surface of the support bar, wherein the pinion gear is engaged with the rack gear.

A relaxation seat for a vehicle, the relaxation seat comprising:

• a seat cushion lower frame configured to be mounted on a seat rail;
• a seat cushion upper frame connected to the seat cushion lower frame in a tilting-enabled manner;
• a seat back frame connected to the seat cushion upper frame;
• a locking device mounted at a predetermined position on the seat cushion upper frame;
• a front link hinge-connecting between the seat cushion upper frame and a front end portion of the seat cushion lower frame;
• a rear link hinge-connecting between the seat cushion upper frame and a rear end portion of the seat cushion lower frame;
• and
• a support bar connecting between the locking device and the front link in a manner that is movable backward and forward and configured to support the front link for rotation or fixation thereof;
• wherein the front link comprises:
• a first front link, wherein a lower end portion of the first front link is hinge-connected to the seat cushion lower frame;
• and
• a second front link, wherein an upper end portion of the second front link is hinge-connected to a connection pipe fastened to the seat cushion upper frame, a front end portion of the support bar is hinge-connected to a first side of a lower end portion of the second front link, and an upper end portion of the first front link and a second side of the lower end portion of the second front link are connected to each other with a hinge pin.