Patent ID: 7017210

Claim:
A rising-type bed apparatus comprising: a bed frame; a bedplate which includes a fixed bed part secured to the bed frame, and a right leg-raising part and a left leg-raising part which are adjacent in a transverse direction of the bed frame, and each of which is rotatably coupled at one end thereof to the fixed bed part; a driving mechanism which is provided on a lower surface of the bedplate and which is configured to drive at least one of the leg-raising parts in a rising direction; a back-raising part including a back middle part rotatably coupled to the fixed bed part and a pair of back parts rotatably coupled to the back middle part on opposite sides of the back middle part in the transverse direction; a back raising mechanism which is disposed on a lower surface of the back-raising part and which is drivable to incline at least one of the pair of back parts of the back-raising part by a predetermined angle with respect to the back middle part, when the back-raising part is driven in a rising direction by the driving mechanism; wherein the back raising mechanism comprises: at least one back-raising arm drivable to be raised and lowered; at least one back raising roller, disposed on the back-raising arm, to drive the back middle part of the back-raising part to raise and lower the back middle part; and at least one push-up roller, disposed on the back-raising arm, to selectively incline a corresponding one of the pair of back parts of the back-raising part by the predetermined angle with respect to the back middle part when the back-raising part is driven in a rising direction by the driving mechanism.