| 摘要 |
PURPOSE: A core bar for a track shoe of an elastic body is provided to reduce the weight by making a part of the core bar thin, and to prevent the elastic body from being deformed by forming a smooth rib reinforcing portion not to protrude the edge portion of the core bar. CONSTITUTION: An elastic body track shoe is fastened to a joint link of a crawler by bolts, and a core bar(10) is installed in the elastic body track shoe. Recess portions(1a,1b) are formed in a substantially inverse-trapezoidal shape, or recess portions(10a,10b) are formed in a substantially inverse-trapezoidal shape toward front end portions in non-grounded surface sides of right and left wing portions. A recess portion(1e) is formed in a substantially inverse-trapezoidal shape, and a through hole is formed in the center portion. The light structure is obtained with making the part of the core bar thin, and deformation of the elastic body is prevented. The strength is improved with piercing a hole in the core bar, and cutting of the elastic body is prevented with the edge of the hole.
|
