초록 ▼

Alternate embodiments of mountings are shown which include ball and ball socket segments arranged to permit universal pivoting movement between the track frame and crossbar of a crawler tractor. The arrangement further includes planar surfaces carried by the track frame or crossbar engaged with plan

Alternate embodiments of mountings are shown which include ball and ball socket segments arranged to permit universal pivoting movement between the track frame and crossbar of a crawler tractor. The arrangement further includes planar surfaces carried by the track frame or crossbar engaged with planar surfaces formed on one or the other of the ball and ball socket segments so that the end of the crossbar is permitted to slide fore-and-aft and sideways relative to the track frame.

대표청구항 ▼

A mounting universally connecting an end of a front crossbar of a crawler tractor to a track frame, comprising: upper and lower support members fixed to said frame and respectively located above and below said end of the crossbar; one of upper and lower sides of said end of the crossbar, and said up

A mounting universally connecting an end of a front crossbar of a crawler tractor to a track frame, comprising: upper and lower support members fixed to said frame and respectively located above and below said end of the crossbar; one of upper and lower sides of said end of the crossbar, and said upper and lower support members being provided with a first pair of recesses respectively having bottoms defining a first pair of planar bearing surfaces; and ball and socket connection means interposed between said end of the crossbar and said upper and lower support members and including respective portions loosely received in said recesses and defining a second pair of planar bearing surfaces respectively slidably engaged with said first pair of bearing surfaces for permitting relative fore-and-aft and transverse movement between the track frame and the crossbar at said mounting.