| 摘要 |
PURPOSE: A pin-jig for supporting weight material is provided to offer appropriate pin-jig fitting to specific purpose and its size by changing the number of gear and clockwork. CONSTITUTION: A pin-jig for supporting weight material is comprised of a guide frame, and a driving bundle. The guide frame is inserted inside the outer tube. A top fixing plate(320) and a lower fixing plate(330) are placed by plural guide bars(310a, 310b), and a rack gear(311) is formed in one of the guide bars. The driving bundle can be moved up and down along the guide bar as the upside moving board(410) and the downside moving board(420) are bound by plural connectors. The driving bundle installs a gear in a space which is formed by upside moving board, downside moving board, and connectors. An energy storing unit is combined in the shaft of a gear. An inner shell supported by the driving bundle can be moved up and down.
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