Transmission device of walking type self-traveling lawn mower

Details Transmission device of walking type self-traveling lawn mower Transmission device of walking type self-traveling lawn mower

2007-02-06

2011-11-01

Marcelo, Emmanu M (Department: 3654)

Endless belt power transmission systems or components

Means for adjusting belt tension or for shifting belt,...

Tension adjuster has surface in sliding contact with belt

C474S212000, C474S152000, C056S017500

Reexamination Certificate

active

08047938

ABSTRACT:
A transmission device (1) of a walking type self-traveling lawn mower (4) in which the reliable transmission of a rotating power is achieved as in the case of a shaft drive system by solving the problem of the durability of the transmission belt of conventional transmission devices while basically adopting the transmission device of a belt drive system. The transmission device (1) comprises a chain drive mechanism (2) and a rotating direction changing mechanism (3). The chain drive mechanism (2) is constituted by winding a transmission chain (23) around a drive sprocket (21) fitted to an output shaft (411) and rotating horizontally and a driven sprocket (22) connected to the rotating direction changing mechanism (3) and rotating horizontally. The rotating direction changing mechanism (3) comprises a drive bevel gear (31) coaxial with the driven sprocket (22) rotating horizontally, a driven bevel gear (32) meshed with the drive bevel gear (31) rotating vertically, and an auxiliary output shaft (33) coaxial with the driven bevel gear (32) rotating vertically.

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