What is claimed is: 1. A separable bed comprising a wheel chair portion and a bed portion joined together, wherein the wheelchair portion includes a second seat surface portion, a second seat surface portion, And a second guide part supporting the first floor part and the second seat part and the first floor part, wherein the second guide part supports the first floor part, 1) a guide section (15), an elevating section (18) for raising and lowering the first floor section (13), and a control section (100), wherein the control section (100) Lower the first guide part (15) to the lower limit position.車椅子部(2)とベッド部(12)とを合体してなる分離可能ベッド(1)であって、車椅子部(2)は、第2座面部(3)と、第2座面部(3)を支持する第2ガイド部(5)と、を備え、ベッド部(12)は、第1床面部(13)と、第2座面部(3)及び第1床面部(13)を支持する第1ガイド部(15)と、第1床面部(13)を昇降動作させる昇降部(18)と、制御部(100)とを備え、制御部(100)は、分離動作を行う場合は第2下限位置まで第1ガイド部(15)を下降させる。