Arm rest device

摘要: An arm rest device for relieving load when performing work by hand and wrist movements comprises an attachment member mounting the on a chair; upper support supporting forearm arranged to be self-positioning while being performed movements, said accompanying movements; adjustable horizontal guide rail attached movably disposed in longitudinal direction provide corresponding adjustment of due influence force generated is moved forwards or backwards; vertical which movable its weight external forces exerted forearm; joint elastic material below rail, carrying support, allow tilt order action applied front behind via forearm, return their initial positions have ceased.