PROBLEM TO BE SOLVED: To provide a walker having the function of helping a user stand up.SOLUTION: The standing assist walker 1 includes: a handle 4 installed at a front part a column 3 which supports the handle 4 a frame 2 which supports the column 3 and is roughly U-shaped in such a shape that a rear part is open a first caster 5 provided with a wheel rotatable in front and back directions and right and left directions and installed at the front part of the frame 2 a second caster 6 provided with a wheel rotatable in the front and back directions and the right and left directions and installed at both right and left rear parts of the frame 2 a seat surface 8 whose longitudinal direction is extended in the roughly front and back directions of the walker and disposed near the side part of the frame 2 in the planar view a first restraining mechanism which restrains the rotation in the front and back directions of the wheel of the second caster 6 when a load is applied to the seat surface 8 a second restraining mechanism which restrains the rotation in the right and left directions of the wheel of the second caster 6 by an operation by a user and a driving mechanism which drives the seat surface 8 in upper and lower directions.COPYRIGHT: (C)2012,JPO&INPIT【課題】ユーザが起立する際のアシスト機能を備えた歩行器を提供すること【解決手段】本発明にかかる起立アシスト歩行器1は、前部に設置されたハンドル4と、ハンドル4を支持する支柱3と、支柱3を支持し、略コの字型で後部が開いている形状のフレーム2と、前後方向及び左右方向に回転可能な車輪を有し、フレーム2の前部に設置された第1のキャスタ5と、前後方向及び左右方向に回転可能な車輪を有し、フレーム2の左右両後部に設置された第2のキャスタ6と、長手方向が歩行器の略前後方向に延在し、平面から見てフレーム2の側部近傍に配置された座面8と、座面8に荷重がかかると第2のキャスタ6の車輪の前後方向への回転を拘束する第1の拘束機構と、ユーザの操作によって第2のキャスタ6の車輪の左右方向への回転を拘束する第2の拘束機構と、座面8を上下方向に駆動する駆動機構を備える。【選択図】図1
