Crawler-type vehicle

Patent metadata

Field	Value
Publication number	US-12503179-B2
Application number	US-202017790552-A
Country	US
Kind code	B2
Filing date	Dec 31, 2020
Priority date	Jan 7, 2020
Publication date	Dec 23, 2025
Grant date	Dec 23, 2025

Abstract

To provide a crawler-type vehicle capable of efficiently scraping off mud from an upper road wheel. A pair of scraper members are disposed on one side in the front-rear direction and on other side in the front-rear direction of an upper road wheel. Each scraper member is formed with a claw that protrudes toward the upper road wheel. A right-left directional position of the tip of the claw of one scraper member and a right-left directional position of the tip of the claw of the other scraper member are different from each other.

First claim

The invention claimed is:

1 . A crawler-type vehicle comprising: a crawler frame extending in a front-rear direction; a drive wheel mounted on one side end part of the crawler frame in the front-rear direction; an idler wheel mounted on the other side end part of the crawler frame in the front-rear direction; an upper road wheel mounted on an upper part of the crawler frame in between the drive wheel and the idler wheel; a lower road wheel mounted on a lower part of the crawler frame in between the drive wheel and the idler wheel; and a crawler belt wound around the drive wheel, the idler wheel, the upper road wheel and the lower road wheel, wherein
a pair of scraper members formed with claws protruding toward the upper road wheel are disposed, on one side in the front-rear direction and on the other side in the front-rear direction of the upper road wheel, wherein a right-left directional position of a tip of a claw on one of the pair of scraper members and a right-left directional position of a tip of a claw on the other of the pair of scraper members are different from each other, and wherein the right-left directional positions of the tips of the claws of one of the scraper members do not overlap with any of the right-left directional positions of the tips of the claws of the other scraper member.

2 . The crawler-type vehicle according to claim 1 , wherein a plurality of the claws are formed in each of the pair of scraper members, and a right-left directional position of a tip of at least one claw of a plurality of claws of the one of the pair of scraper members is different from any of right-left directional positions of tips of a plurality of claws of the other of the pair of scraper members.

3 . The crawler-type vehicle according to claim 1 , wherein a shape of the one of the pair of scraper members and a shape of the other of the pair of scraper members are identical to each other.

4 . The crawler-type vehicle according to claims 1 , wherein right-left directional dimensions of the claws become gradually narrower toward the upper road wheel, and further the claws are formed right-left asymmetrically.

5 . The crawler-type vehicle according to claims 1 , wherein a right-left directional position of the one of the pair of scraper members and a right-left directional position of the other of the pair of scraper members are different from each other.

6 . The crawler-type vehicle according to claims 1 , wherein the pair of scraper members are attachably and detachably fixed to the crawler frame and further configured to be movable toward the upper road wheel.

Assignees

• Caterpillar Sarl

Inventors

• Naito Takayuki
• Genko Yasutaka
• Rajangam Manikandan

Classifications

• B62D55/14

  Arrangement, location, or adaptation of rollers · CPC title

• B60S1/68

  for freeing wheels or tyres from foreign matter, e.g. wheel scrapers · CPC title

• B62D55/0882 Primary

  Track or sprocket cleaning devices mounted on the frame (wheel cleaning devices in general B60S) · CPC title

• B62D55/088 Primary

  with means to exclude or remove foreign matter, e.g. sealing means, self-cleaning track links or sprockets, deflector plates or scrapers · CPC title