| 摘要 |
PROBLEM TO BE SOLVED: To provide a safe and easily operated folding fixing device for a folding structure such as a bicycle frame. SOLUTION: Both abutting ends of a structure unit 11 including a first structure 111 and a second structure 112 serving as folding frame structures respectively are formed as a first pivot 131 and a second pivot 132 rotated around bolts 135, 135 serving as shafts, and the bolts are supported and fixed between a pair of base units 14. The abutting surfaces of a fixing pin comprising a T-shaped protrusion, and a pivot unit are provided with mutually fitted recessed grooves 154 and plus tenons 134 respectively, and the upper edges of the base units are pressed and fixed by a pressure fitting body 153 resiliently projected from the T-shaped protrusion of the fixing pin. When folding, the pressure fitting body is pushed in to release the pressure of the fixing pin, and the fixing pin is pressed down to release fitting of the pivot unit. COPYRIGHT: (C)2011,JPO&INPIT
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