| 摘要 |
<P>PROBLEM TO BE SOLVED: To further improve a plurality of stoppers which adjust the length of a self-standing stick and lock the expansion and contraction of opening and closing of three feet, and others. <P>SOLUTION: An outer cylinder is added anew to make it into a three-layer structure, and when the lock of the stoppers is released by the remote operation of a lever, an inner cylinder expands by spring and three feet open and three feet stand on their own legs by the combination of the expansion and contraction of a square shaft with a cam and a square tube which can be remote-controlled even if the height of a stick changes by the expansion and contraction by opening and closing of three feet, the rotation of the cam, and the movement of direct-acting stoppers. When a grip is pressed down, the outer cylinder and the inner cylinder, which interlock with each other, go down, and three feet, to which this motion is transmitted, close, and at the same time, the tip of the direct-acting stopper and a stopper hole in the inner cylinder are leveled with each other, and the stopper is locked automatically by the action of a spring. For fixation after adjustment into an easy-to-use length, a second stopper can be locked or released with a slight force, by a lock stopper with a bearing in a lock handle using a lever. <P>COPYRIGHT: (C)2012,JPO&INPIT |
