Tilt linkage for bulldozer blade mounting assemblies

Claim 2

A mounting assembly for supporting a bulldozer blade at one end of a vehicle and providing adjustment of blade pitch and tilt, comprising the vehicle, a pair of push arms pivotally interconnected between opposite sides of the vehicle and blade, extendible motor means pivotally interconnected between the respective push arms and the blade for adjusting blade pitch, one of the blade pitching motor means being pivotally connected with a rigid link which link is pivotally connected with the blade, and means coupled with the link and the blade for adjusting its angular relation with the blade, said last recited means being arranged substantially perpendicularly to a pivot axis between the blade and the link.

Claim 3

The invention of claiM 1 further comprising motor means effectively interconnected between the vehicle and blade for adjusting blade elevation.

Claim 4

The invention of claim 2 wherein the blade pitching motor means and the motor means effectively interconnected between the vehicle and blade are hydraulic jacks.

Claim 5

The invention of claim 1 wherein pivotal connections for the blade pitching motor means are universal pivot connections.

Claim 6

The invention of claim 1 wherein the means coupled with the link is a hydraulic jack.

Claim 7

The invention of claim 5 wherein the link is an elongated member extending generally toward the vehicle from its pivotal connection with the blade, the one blade pitching motor means and the jack between the link and blade being pivotally connected to a portion of the link remote from its pivotal connection with the blade.

Claim 8

The invention of claim 6 wherein the other blade pitching motor means is pivotally connected to a fixed bracket on the blade.

Claim 9

The invention of claim 6 wherein the blade pitching motor means are hydraulic jacks angled upwardly and forwardly along their respective push arms toward their pivotal connections with the blade, the jack interconnected between the link and blade being arranged generally vertically above one of the push arms.

Claim 10

A mounting assembly for supporting a bulldozer blade upon a vehicle, comprising a pair of push arms pivotally interconnected between the vehicle and blade, a pair of members respectively pivoted to the push arms, the members angling upwardly and toward the blade along their respective push arms for pivotal connection with the blade, one of the members being pivotally connected with a rigid link which link is pivotally connected with the blade, and means coupled with the link and the blade for adjusting the link''s position and varying the proximity of the pivotal connection between the one member and the link relative to the blade, said last recited means being arranged substantially perpendicularly to the pivot axis between the blade and link.

Claim 11

A mounting assembly for supporting a bulldozer blade upon a vehicle, comprising a pair of push arms pivotally interconnected between the vehicle and blade, a pair of members respectively pivoted to the push arms, the members angling upwardly and toward the blade along their respective push arms for pivotal connection with the blade, one of the members being pivotally connected with a rigid link which link is pivotally connected with the blade, and means coupled with the link and the blade for adjusting the link''s position and varying the proximity of the pivotal connection between the one member and the link relative to the blade, said last recited means being arranged substantially perpendicularly to the pivot axis between the blade and link.

Claim 12

The invention of claim 9 wherein the means operatively associated with the link is a hydraulic jack pivotally interconnected between the link and the blade.

Claim 13

The invention of claim 10 wherein the members pivotally interconnected between the respective push arms and the blade are hydraulic jacks for adjusting pitch of the blade and further comprising additional motor means interconnected between the vehicle and the blade for adjusting elevation of the blade.