초록 ▼

A drive system for a track type vehicle includes a drive wheel assembly having a rim with a sprocket attached thereto and a resilient frictional driving tire, at least one idler wheel assembly having a rim and a resilient tire with a central rib of a larger diameter, and an endless track having a pl

A drive system for a track type vehicle includes a drive wheel assembly having a rim with a sprocket attached thereto and a resilient frictional driving tire, at least one idler wheel assembly having a rim and a resilient tire with a central rib of a larger diameter, and an endless track having a plurality of serially spaced openings and protrusions extending generally perpendicularly from an inside surface. The protrusions cooperate with guide grooves in the wheels to maintain the alignment of the endless track with the wheels when the endless track is tensioned around the wheels. Frictional driving tires transmit substantially all of the driving force under normal conditions and sprocket teeth engaged with openings in the endless track prevent slippage under exceptional conditions.

대표청구항 ▼

A drive system for a track type vehicle comprising: drive wheel means having rim means, sprocket means with circumferentially spaced sprocket teeth, and resilient tire means with at least one circumferentially disposed frictional driving surface; idler wheel means having rim means and resilient tire

A drive system for a track type vehicle comprising: drive wheel means having rim means, sprocket means with circumferentially spaced sprocket teeth, and resilient tire means with at least one circumferentially disposed frictional driving surface; idler wheel means having rim means and resilient tire means with at least one circumferentially disposed surface; and endless track means having a series of spaced openings, transverse reinforcing means disposed between adjacent openings, and at least one surface on an inside thereof for engagement by the at least one frictional driving surface of said drive wheel means and the at least one circumferentially disposed surface of the idler wheel means; said endless track means being tensioned around said drive wheel means and said idler wheel means such that said at least one frictional driving surface of said drive wheel means is in positive frictional engagement with said at least one surface on the inside of said endless track means and sprocket teeth of said sprocket means extend through aligned openings of said openings in said endless track means; said resilient tire means being constructed of material providing for positive frictional engagement of said at least one frictional driving surface of said drive wheel means with said at least one surface on the inside of said endless track means and cushioning of shocks received by said endless track means; whereby said at least one frictional driving surface of the drive wheel means normally imparts substantially all of the driving force to the endless track means for moving the vehicle and the sprocket teeth of said sprocket means cooperate with aligned openings in the endless track means to prevent slippage of the endless track means relative to the drive wheel means under exceptional conditions.