Patent ID: 6578861
Filing Date: 2003-06-17
Classification: B62M

Abstract:
A reciprocating driving mechanism comprising: a front and rear wheels (W1, W2) provided in the front and rear parts of a car body (10); a gear box (B) provided on a head pipe (11) of the car body (10); a driving and driven gears (20, 30) in meshed engagement and a side gear (31) formed integrally with the driven gear (30), those gears being built in the gear box (B); driving members (40) each comprising three links (41, 42, 43) for rotating the driving gear (20) only in the advancing direction through a first set of unidirectional clutches (C1), the driving members being provided on the both sides of the car body (10); a pinion (50) in meshed connection with the racks (42a) formed on the second links (42) and adapted for alternate operation of the driving members (40); a head gear (60) in meshed connection with the side gear (31) and provided on a lower part of the head pipe (11) through a bearing (61); an intermediate gear (70) provided through a second unidirectional clutch (C2), the intermediate gear being positioned below the head gear (60); a relaying gear (81) in meshed connection with the intermediate gear (70) and provided at the top part of a driving axle (80), the driving axle passing through a hook (13) of a steering axle (12) and being fitted in the head pipe (11); an output gear (82) provided at the bottom part of the driving axle (80) for transmitting the torque; and a hub gear (90) in meshed connection with the output gear (82) and attached to the hub (H) of the front wheel (W1).