초록 ▼

A sprocket wheel of an endless track-type vehicle has a hub and a plurality of sprocket teeth segments fixedly secured to the outermost of the hub to engage a plurality of bushings of an endless track for driving the same. The hub comprises a substantially annular-shaped radially inner part, a subst

A sprocket wheel of an endless track-type vehicle has a hub and a plurality of sprocket teeth segments fixedly secured to the outermost of the hub to engage a plurality of bushings of an endless track for driving the same. The hub comprises a substantially annular-shaped radially inner part, a substantially annular-shaped radially outer part arranged movably with respect to the inner part by the interposition of a plurality of deformable resilient block segments tightly inserted into an annular space defined by and between the inner and outer parts, and a stopper mechanism for preventing the deformable resilient block segments from an excessive deformation thereof.

대표청구항 ▼

A sprocket wheel of an endless track-type vehicle including a substantially annular-shaped inner part of a hub fixedly mounted on a sprocket wheel driving shaft, a substantially annular-shaped outer part of the hub arranged at the radially outside of said inner part so as to form an annular space th

A sprocket wheel of an endless track-type vehicle including a substantially annular-shaped inner part of a hub fixedly mounted on a sprocket wheel driving shaft, a substantially annular-shaped outer part of the hub arranged at the radially outside of said inner part so as to form an annular space therebetween, an outer peripheral surface of the inner part and an inner peripheral surface of the outer part being, respectively, formed of oppositely tapered surfaces, thereby defining said annular space as an annular conical-trapezoidal space, a plurality of deformable resilient block segments equispacedly and fixedly inserted into said annular space, and stopper means for preventing said deformable resilient block segments from their respective excessive deformation, the improvement wherein each of said deformable resilient block segments comprises: (a) a radially inner member having at one end thereof a flange portion extending radially inwardly and fixedly secured through said flange portion to one end face of said inner part by means of bolts, the inner peripheral surface being formed in a tapered surface so as to adapt to that of said inner part; (b) a radially outer member having at one end thereof a flange portion extending radially outwardly and fixedly secured through said flange portion to one end face of said outer part by means of bolts, the outer peripheral surface being formed in a tapered surface so as to adapt to that of said outer part; and (c) a resilient member allowing the inner and outer peripheral surfaces thereof to fix in seizure to the radially outer surface of said inner member and the radially inner surface of said outer member, respectively.