Patent ID: 6080197
Filing Date: 2000-06-27
Classification: A61F,F16F

Abstract:
A shock absorbing device adapted for use with an artificial leg, comprising:a coupling member including a horizontal mounting plate and a tubular portion that extends vertically from said mounting plate, said tubular portion having an upper end surface and being formed with a radial inward first restricting portion distal to said upper end surface;a sleeve member having a lower sleeve portion mounted telescopically on said tubular portion, and an upper sleeve portion formed with a radial inward second restricting portion that is disposed above said upper end surface of said tubular portion of said coupling member;a damping member extending into said coupling member and said sleeve member, and having a lower end that abuts against said first restricting portion and an upper end that abuts against said second restricting portion, said damping member being capable of damping axial forces exerted on said coupling member and said sleeve member; anda cushioning unit provided on said mounting plate of said coupling member and said lower sleeve portion of said sleeve member for cushioning axial and radial forces exerted on said coupling member and said sleeve member, and for limiting relative axial movement between said coupling member and said sleeve member;wherein said cushioning unit includes a cushioning block, and an upright retaining member connected to said mounting plate adjacent to said tubular portion, said retaining member confining a vertical slide channel that opens toward said tubular portion and that receives said cushioning block slidably therein, said slide channel being formed with an upper limiting surface to limit upward vertical sliding movement of said cushioning block relative to said retaining member, said upper limiting surface cooperating with said mounting plate to limit the relative axial movement between said coupling member and said sleeve member.