| 摘要 |
A snow thrower of compact proportions is obtained by a single piece housi ng which supports an engine having a vertical output shaft extending within the housing. The housing also supports a horizontally disposed auger drive shaft . A belt drive connects the engine drive shaft and the auger drive shaft via a pair of idler pulleys, one disposed at an inclined angle and the other being mounted on an idler arm pivotally mounted within the housing. The belt and idler arm pass throug h an opening in the housing to achieve the belt drive connection. A control member.is provided to move the idler arm to tension the belt for driving the auger dri ve shaft or to relax the belt to interrupt the belt drive connection. In the latter condition, the belt is braked while retaining light contact between the engine and auger drive pulleys.
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