TH8640B - Adjustable joints - Google Patents

Abstract

The adjustable articulation includes an axle, a fixed bend mounted on an axis to support the first frame axle, two movable buckles that are rotated around the axis for supporting the second frame and the frame axle. The third part, respectively. Positioning plates, which are mounted on an axis and are suppressed by rotational motion relative to the axis. And connected to the bend and move by Relying on the tooth connection , Two cam holders which are fixed to the axes at the end It is opposite the two ends, and the two mushroom cams are mounted on the axis. And fixed with the cam holder, in which the mushroom cam part is fully supported in the cam holder, the movable crook can be disengaged from the positioning plate. And will be rotated in relation to With the axis to adjust the angular position of the second frame axis. And the third in relation to the axis

Claims (3)

1.The adjustable joint consists of a polygonal axis. The crook is bent fixed. Which has a longitudinal shaft mounted around the polygonal axis It is inhibited from the rotational motion relative to the polygonal axis and has a sleeve which is connected perpendicular to the longitudinal shaft of the fixed bend. To support the frame axis The first part of the flexion Which moves freely around the shaft along the length of the Such constant crook at one end Which will have a crown gear at the outer end And has a sheath on it At a position in the direction along the radius line In relation to the longitudinal shaft of the said constant crook To support the frame axis The second part of the flexion Which move freely around the shaft lengthwise Of such a fixed bend at the opposite end Which will have a crown gear at the outer end And the sleeve is positioned in the radial direction in relation to the longitudinal shaft. Of the aforementioned fixed to support the frame axis Two positioning pieces Will be installed around the said polygon. Each positioning element is positioned next to each flexure and is inhibited by rotational motion relative to the axis. The piece determines the position, but Each piece will have each crown gear in order. Two cam holders are sequentially fixed to the said polygon. At the two opposite ends And is inhibited from the movement of rotation in relation to the axis. Each cam holder has a protrusion on the inside Two mushroom cam Will be rotated around the polygon axis like Independent, respectively, and are supported in the said cam holder. Each mushroom cam has Each filing section, respectively Which are positioned axially between such protrusions of the fasteners. Such cam To transmit the force of the crown gear of the said positioning element It is fixed with the crown gear of the forward bend, the spring path is installed around the axis respectively. And blocked Is located between those positioning parts. And the flexion of the propulsion and in the place where such positional parts Can be released from the bent joints. Such a movement by rotating motion Such a mushroom cam to move the overhang. Of the cam bush to the side away from the protrusion of the said cam plate holder to allow the bent joint can be rotated freely on the shaft as The longitudinal length of the crook is fixed. To change the angular position of the sleeve of the crook Bend the motion in relation to the polygon. 2.The adjustable joint of claim 1, where the part of the spring path is a coiled spring. 3. The adjustable joint of claim 1 where the section of the camshell There is a handle on each cam that extends beyond the cam holder. For moving around by hand