| 摘要 |
PROBLEM TO BE SOLVED: To provide a size adjustable band wherein an arbitrary length can be extremely strongly held and each operation of tightening and releasing can be extremely easily carried out. SOLUTION: A holding body 5 is press-contacted on the front face of an adjusting belt 1 and holds each longer side edge. An adjusting knob 3 which fits in a pinion 4 and rotates with the pinion 4 is provided on the front face of the holding body 5. A ratchet nail 6A for restricting rotation in one direction of the adjusting knob 3 is provided on the outer periphery of a hooking ring 6 fixed on the front face of the holding body 5. A ratchet ring 3A hooking on and releasing from the ratchet nail 6A is provided on the back face of the adjusting knob 3. A releasing ring 7 for hooking on the ratchet nail 6A hooked on the ratchet ring 3A and releasing forcibly the ratchet nail 6A is arranged between the holding body 5 and the hooking ring 6. A definite length can be strongly held thereby and each operation of tightening and releasing can be extremely easily carried out. |
