A nursing bed including a bed body provided with a concave groove (4) and a wheelchair provided in the concave groove (4). The wheelchair includes a wheelchair support frame (2), a double traction elevating adjustment device (21), a double traction elevating adjustment device (21), a lock mechanism (22), a first traction mechanism, and a second traction. The wheelchair support frame (2), including the mechanism, is provided with a wheelchair back plate (1), a seat plate (3), a foot plate (5) and a tread plate (6) in this order, and the seat plate (3) supports the wheelchair. Fixed on the frame (2), the double traction elevating adjustment device (21) is provided below the point where the wheelchair back plate (1) and the seat plate (3) are connected, and the lock mechanism (22) is provided. When the wheelchair is separated from the bed body by being provided on the double traction lift adjustment device (21) and locking the double traction lift adjustment device (21) and the first traction mechanism being connected to the lock mechanism (22). , Controls the raising and lowering of the wheelchair back plate (1), the second traction mechanism is connected to the lock mechanism (22), and when the wheelchair and the bed body are merged, the wheelchair back plate (1) and the bed body back plate While unlocking the lock mechanism (22) so that it can be raised and lowered at the same time, when the wheelchair is separated from the bed body, the lock mechanism (22) is controlled so that the raising and lowering of the wheelchair back plate (1) is controlled by the first traction mechanism. ) Is locked. [Selection diagram] Fig. 1凹溝（４）が設けられたベッド体と凹溝（４）内に設けられた車椅子とを含む介護ベッド。前記車椅子は、車椅子支持フレーム（２）と、二重牽引昇降調節装置（２１）と、二重牽引昇降調節装置（２１）と、ロック機構（２２）と、第１牽引機構と、第２牽引機構とを含み、車椅子支持フレーム（２）には、順に車椅子背板（１）、座板（３）、足板（５）及び踏板（６）が設けられ、座板（３）が車椅子支持フレーム（２）上に固定され、二重牽引昇降調節装置（２１）は、車椅子背板（１）と座板（３）とを接続する箇所の下方に設けられ、ロック機構（２２）は、二重牽引昇降調節装置（２１）上に設けられ、二重牽引昇降調節装置（２１）をロックし、第１牽引機構は、ロック機構（２２）に接続され、車椅子がベッド体から離間した場合、車椅子背板（１）の昇降を制御
