Komatsu Corporation

Haruhiro Tsubota

Hikosaburo Hiraki

Kazutoshi Hori

Kenji Nishikawa

Masao Tsujino

The present invention is a crawler device for a crawler type vehicle, which lowers the vehicle height, decreases the vehicle width, and exhibits superior stability during operation. For this purpose, in a crawler type vehicle having, on right and left sides of either one of front or rear portion, or both of the front and rear portions of a vehicle body, crawler devices each having a sprocket, an idler disposed on a truck frame, and a crawler belt passed through the sprocket and the idler, the crawler device can include a front end link coupled to a forward part of the truck frame by a pin at a lower end portion thereof and to the side of said vehicle body by a pin at the upper end portion thereof, and can include a rear end link coupled to a rearward part of the truck frame by a pin at the lower end portion thereof and to the side of the vehicle body at a position behind the front end link by a pin at the upper end portion thereof.

Crawler device for a crawler type vehicle

The present invention is a crawler device for a crawler type vehicle, which lowers the vehicle height, decreases the vehicle width, and exhibits superior stability during operation. For this purpose, in a crawler type vehicle having, on right and left sides of either one of front or rear portion, or both of the front and rear portions of a vehicle body ( ), crawler devices each having a sprocket ( ), an idler ( A) disposed on a truck frame ( ), and a crawler belt ( ) passed around the sprocket ( ) and the idler ( A), the crawler device includes a front end link ( ) coupled to a forward part of said truck frame ( ) by means of a pin ( D) at a lower end portion thereof and to the side of said vehicle body ( ) by means of a pin ( U) at the upper end portion thereof, and a rear end link ( ) coupled to a rearward part of said truck frame ( ) by means of a pin ( D) at the lower end portion thereof and to said side of said vehicle body ( ) at a position behind said front end link ( ) by means of a pin ( U) at the upper end portion thereof.

A noise reducer for construction machinery, which efficiently reduces noise at low cost with durability, is provided. For this purpose, lamination plates (,) which are the plates being laminated are bonded, discretely at a predetermined interval (a,), to a part of or the entire of a noise generating element. Lamination plates (,A,,E) may be bonded discretely at a plurality of kinds of bonding intervals (a,, a,). The lamination plates (,) with the different number of laminations may be bonded according to a noise generating element.

Noise reducer for construction equipment

A triangular crawler device, which is free from being stumbled and whose crawler belt does not come off from a body of a vehicle while the vehicle travels, includes a track frame (,), having a front idler (,A) and a rear idler (,B) disposed at the front and rear ends thereof respectively; a sprocket (,), rotatably fixed to the track frame (,); links (,), for connecting the body (,) of the vehicle (,) and the track frame (,) together; and a crawler belt (,), wound around the front idler (,A), the rear idler (,B) and the sprocket (,).

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Fujisawa, Japan

Haruhiro Tsubota