Elastic-bodied crawler

Abstract

An elastic-bodied crawler, in which a ground pressure distribution is equalized and generation of local wear in use is prevented to provide for durability, and which is driven by drive power from driven projections provided on an inner peripheral surface of the crawler, comprises load propagating means embedded centrally of the crawler in a widthwise direction to extend over treads of rollers. The load propagating means causes pressing forces (ground pressure) of the rollers to act generally in the widthwise direction whereby a ground pressure distribution on a ground surface of the crawler is equalized, local wear in lug portions is eliminated to enhance durability of the crawler.

What is claimed is:  
     
         1 . An elastic-bodied crawler driven by drive power from driven projections provided on an inner peripheral surface thereof, comprising load propagating means embedded centrally of the crawler in a widthwise direction to extend in projected areas of treads of rollers.  
     
     
         2 . The elastic-bodied crawler according to  claim 1 , wherein the load propagating means is arranged on a side of a reinforcement layer of main cables embedded in a body toward a portion formed with lugs.  
     
     
         3 . The elastic-bodied crawler according to  claim 1 , wherein the load propagating means is formed by arranging and embedding a multiplicity of cables perpendicularly to a circumferential direction of the body or on the bias thereto.  
     
     
         4 . The elastic-bodied crawler according to  claim 2 , wherein the load propagating means is formed by arranging and embedding a multiplicity of cables perpendicularly to a circumferential direction of the body or on the bias thereto.  
     
     
         5 . The elastic-bodied crawler according to  claim 1 , wherein the load propagating means is formed by embedding core bodies having a higher Young's modulus than that of an elastic material, which forms the body.  
     
     
         6 . The elastic-bodied crawler according to  claim 2 , wherein the load propagating means is formed by embedding core bodies having a higher Young's modulus than that of an elastic material, which forms the body.  
     
     
         7 . The elastic-bodied crawler according to  claim 5 , wherein a circumferential pitch of the core bodies in the body is 1/n (n: integer) times a pitch, in which the driven projections are provided.  
     
     
         8 . The elastic-bodied crawler according to  claim 6 , wherein a circumferential pitch of the core bodies in the body is 1/n (n: integer) times a pitch, in which the driven projections are provided.