Aid to rehabilitation has locking element with two latching protrusions that protrude through slots in first joint part into slots in second joint part to age teeth and enable stable adjustment of angle between parts

摘要

The device has first and second frames (11,12) for attachment to two elements joined by a linkage and an adjustment device (2) at the connection point. With first and second joint parts connected to the first and second frames and joined by an axle bolt. The second joint part has two opposed slots with teeth concentric to the axle bolt and the first frame has a locking element with two latching protrusions that protrude through slots in the first joint part into two slots in the second joint part and engage the teeth to enable stable adjustment of the angle between the parts.