PROBLEM TO BE SOLVED: To provide a lifting device for an X-ray photographing device, which can manually raise and lower a movable component such as a hand hold, an image receiving part, or the like while suppressing cost without adopting a complex configuration.SOLUTION: A lifting device for an X-ray photographing device comprises: a spring member 2 attached to a shaft member so as to be freely taken up and delivered a slider 5 connected to the tip of the spring member a support member connected to the slider and a locking mechanism for fixing the position of the slider at a desired position. The locking mechanism comprises a locking latch 18 attached rotatably to the slider and having a locking claw part 19, and a rack 14 in which a plurality of locking grooves 15 for locking the locking claw part are formed. The locking latch is energized in a direction of locking the locking claw part to the locking groove. The lock state of the locking claw part to the locking groove is released by rotating the locking latch in an anti-energizing direction. When the locking claw part is locked to the locking groove, the slider is allowed to move in a direction of taking up the spring member and is prevented from moving in a direction of delivering the spring member.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】複雑な構成を採用せずにコストを抑えながら、手動によって握り棒、受像部等の可動部品を昇降可能としたX線撮影装置用の昇降装置を提供する。【解決手段】軸部材に巻き取り及び繰り出し自在に取り付けられたバネ部材2と、バネ部材の先端に連結されたスライダー5と、スライダーに連結された支持部材と、スライダーの位置を所望位置で固定する係止機構を具備し、係止機構は、スライダーに回動自在に取り付けられた、係止爪部19を有する係止用ラッチ18と、係止爪部が係止する係止溝15が多数個形成されたラック14を具備し、係止用ラッチは、係止爪部が係止溝に係止する方向に付勢され、反付勢方向に回動することで係止溝に対する係止爪部の係止が解除され、係止爪部が係止溝に係止している状態では、スライダーは、バネ部材が巻き取られる方向への移動は許容され、バネ部材が繰り出される方向への移動は阻止される。【選択図】図1
