| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an adapter including a retractable pin that can be housed while being hidden in order to save the space, and can be adjusted to a different angle so as to suit different conditions.SOLUTION: An adapter includes a rack 130 including retractable pins 132a, 132b, proximal ends 136a, 136b, and a coupling rod 134 for coupling the proximal ends 136a, 136b, a lower case including a pin receiving slot having through holes, where the retractable pins of the rack are inserted into the through holes, and the pin receiving slot can house the retractable pins of the rack, an inner case mounting a spring used for temporarily fixing the position of the retractable pins by applying elastic force to the proximal end of the rack, and an upper case capable of housing the inner case and meshing with the lower case.</p> |
