초록 ▼

An adjustable tool positioning structure comprising: －a base; a member which is mounted on the base and pivotable in a first plane; a link which at one of its ends is hingedly connected to said member and is pivotable in a plane generally perpendicular to said first plane; an arm which is at one end

An adjustable tool positioning structure comprising: －a base; a member which is mounted on the base and pivotable in a first plane; a link which at one of its ends is hingedly connected to said member and is pivotable in a plane generally perpendicular to said first plane; an arm which is at one end hingedly connected by means of a joint to the other end of the link and includes, for the adjustment of the arm length, a first element connected with the joint and a second element which is movable relative to said first element; said link and said arm being interconnected such that the arm is pivotable about a pivot axis which is fixed relative to the link; and a tool support which is hingedly connected to the other end of the arm and which includes, for the adjustment of the support length, a first element hingedly connected to the movable element of the arm and a second element movable relative to the last-mentioned first element; said tool support being designed to support a tool so that the longitudinal axis of the tool is generally parallel to the longitudinal axis of the support. Said arm is mounted in the joint and rotatable about its own longitudinal axis such that its axis of rotation and its axis of pivoting intersect in the joint, and the arm and the tool support are so arranged that in any of the positions of rotation of the arm they will lie in a generally common plane which is independent of the relative pivoting position of the arm and the tool support.

대표청구항 ▼

Adjustable tool positioning structure comprising:－a base; a member which is mounted on the base and pivotable in a first plane; a link which at one of its ends is hingedly connected to said member and is pivotable in a plane generally perpendicular to said first plane; an arm which is at one end hin

Adjustable tool positioning structure comprising:－a base; a member which is mounted on the base and pivotable in a first plane; a link which at one of its ends is hingedly connected to said member and is pivotable in a plane generally perpendicular to said first plane; an arm which is at one end hingedly connected by means of a joint to the other end of the link and includes, for the adjustment of the arm length, a first element connected with the joint and a second element which is movable relative to said first element; said link and said arm being interconnected such that the arm is pivotable about a pivot axis which is fixed relative to the link; and a tool support whicih is hingedly connected to the other end of the arm and which includes, for the adjustment of the support length, a first element hingedly connected to the movablE element of the arm and a second element movable relative to the last-mentioned first element; said tool support being designed to support a tool so that the longitudinal axis of the tool is generally parallel to the longitudinal axis of the support; wherein the arm is mounted in the joint and rotatable about its own longitudinal axis such that its axis of rotation and its axis of pivoting intersect in the joint, and wherein the arm and the tool support are so arranged that in any of the positions of rotation of the arm they will lie in a generally common plane which is independent of the relative pivoting position of the arm and the tool support.