Crawler device for crawler vehicle

Abstract

As well as a torsional rigidity of right and left crawler links is secured, a seal is prevented from damaging so as to restrict a leakage of a lubricating oil, so that a durability of a crawler device is improved. In order to achieve this, a crawler device for a crawler vehicle comprising a pin (10) and a stationary bush (11) for connecting a right row of crawler link (8) and a left row of crawler link (9) adjacent in a longitudinal direction, and a rotating bush (12) outward fitted to the stationary bush in a freely rotatable manner and meshed with teeth of a drive wheel (5) comprises support members (13, 13) respectively inserted to the right and left rows of crawler links, each having an outer diameter portion (13d, 13d) press fitted to a second connection end portion (8b, 9b) of each of the crawler links and an inner cylinder portion (13e, 13e) to which the stationary bush (11) is press fitted and formed in a bracket-shaped cross sectional ring, a first seal (14, 14) inserted between an outer end portion (13a, 13a) of each of the support members and the opposing crawler links, and a second seal (15, 15) inserted between an inner end portion (13b, 13b) and both end portions of the opposing rotating bushes.

Dependencies are inferred from the claim text.