Tokyo R & D Co., Ltd.

Itochu Corporation

Naoki Tsuji

Atsushi Mamiya

According to the present invention, there is provided a suspension device for a bicycle comprising a center frame for supporting a saddle; a front frame for supporting a front wheel at a first end of the front frame, the front frame being secured to the center frame at a second end of the front frame so as to pivot about a first pivot axis; a rear frame for supporting a rear wheel at a first end of the rear frame, the rear frame being secured to the center frame at a second end of the rear frame so as to pivot about a second pivot axis different from and spaced from the first pivot axis; and a plate spring which is secured to the front frame at a first end of the plate spring, is secured to the rear frame at a second end of the plate spring, and is fixed to the center frame at an intermediate portion of the plate spring, whereby the front and rear frames are resiliently supported relative to the center frame by means of the plate spring.

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Atsugi, Japan

Naoki Tsuji