| 摘要 |
PROBLEM TO BE SOLVED: To surely hold a heavy load for changing a flight attitude and easily attach/detach and dispose/change it while little affecting on the external appearance and a flight stability. SOLUTION: A skid 8 is formed with a groove part 9 being cut to guide a coin 12 in the longitudinal direction and having its base 9a facing the side in an inverse-side skid 8. The groove parts 9 are formed in the both skids 8 and 8. The coil 12 is fitted in the both groove parts 8 and 8, erectedly supported between the skids 8 and 8, and clamped between the skids 8 and 8. The groove parts are formed long along the skids 8 to forward/rearward slidably move the coin 12, and the front ends and the rear ends of the groove parts 9 are opened so that the coin 12 is inserted from the front and rear. COPYRIGHT: (C)2009,JPO&INPIT
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