| 摘要 |
PROBLEM TO BE SOLVED: To reduce the weight and material cost of a front fork for a vehicle. SOLUTION: Related to a front fork 10 for vehicle, a multi-stage coil spring 40 is used as a suspension spring 16 which comprises a loose winding part 42 of small average diameter of coil, a tight winding part 41 of large average diameter of coil, and a connection part 43 which connects the loose part 42 to the tight winding part 41 in series. Two curls are wound with the wire of same thickness. A large inside-diameter part 51 is formed along the inside periphery above the fitting part of a lower bracket 13 of a car-body side tube 14, and the tight-winding part 41 of large diameter is housed in the large inside- diameter part 51.
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