TOOL HOLDING ARTICULATED ARM

摘要

A tool holding articulated arm has articulations each holding a ball between a presser and a front opening of a housing. With small acting force of the presser, a strong fixing force is obtained at each articulation. The presser has a cup shape whose circumferential edge comes into linear contact with the surface of the ball to exert a strong holding force on the surface of the ball.

主权项

1. A tool holding articulated arm comprising:
a plurality of articulations each including:
a ball having a spherical surface;a housing accommodating the ball and having a front opening whose diameter is smaller than the diameter of the ball and a stopper bottom opposing the front opening; anda presser arranged between the stopper bottom and the ball and moved toward and away from the ball by a pressing mechanism, wherein the plurality of articulations are connected in series with corresponding ends of the housing and ball of the adjacent articulations; and a tool holder for holding a tool attached to the ball of a foremost one of the plurality of articulations that are connected in series with corresponding ends of the housing and ball of the adjacent articulations being connected to each other.