Hydraulic angle dozer

Claim 2

An angling mechanism for an implement, comprising: a frame, a pair of arms pivotally connected adjacent one end to said frame for generally horizontal swinging movement, each of said arms pivotally connected adjacent the opposed end to said implement and defining an adjustable obtuse angle therebetween with said pivotal connections spaced further at said implement than at said frame, said pivotal connections on said implement shiftable a limited predetermined distance to permit lateral movement of said implement relative to said frame, and drive means pivotally connected to each of said arms on opposed sides of said pivotal frame connections and between said end pivotal connections, said drive means extensible toward said implement to independently swing one of said arms to angle said implement relative to said frame and simultaneously shift said implement laterally or swing said arms in unison to shift said implement relative to said frame, in parallel relation.

Claim 3

The angling mechanism defined in claim 1, characterized in that said implement includes a pair of spaced, generally coaxially aligned slots which receive said arms for pivotal securement, said slots permitting said arms to shift laterally, relative to said implement.

Claim 4

The angling mechanism defined in claim 2, characterized in that said drive means is adapted to independently swing said arms from a position defining approximately 180* therebetween, and said slots restricting the relative movement of said arms to said movement, whereby said arms may be locked against the adjacent ends of said slots in any angular position.

Claim 5

The angling mechanIsm defined in claim 1, characterized in that said drive means includes a pair of independent fluid cylinders operably connected to said frame including a piston rod connected to said arms, between said pivotal connections, extendable to swing said arms about the pivotal connection to said frame.

Claim 6

The angling mechanism defined in claim 1, characterized in that said frame includes a longitudinal axis and said arms are pivotally connected to said frame on opposite sides of said axis, substantially equally spaced from said axis, said frame including a stop means preventing swinging movement of said arms beyond 180*, said drive means adapted to independently swing one of said arms approximately 90*, whereby said implement is first angled relative to said frame and the other of said arms is then shifted, relative to said implement, to lock the arms in angled relation to said implement and shifting the implement laterally relative to said frame.

Claim 7

An angling mechanism for a bulldozer blade, or the like, comprising: a dozer frame having a longitudinal axis, a pair of arms pivotally attached to said frame substantially equally spaced from said axis and supported for generally horizontal swinging movement, each of said arms attached to said blade by spaced pivotal connections supporting the blade on the frame, said pivotal connections spaced a greater distance on said blade than on said frame to define an adjustable obtuse angle between said arms, means on said blade permitting said swivel connections to shift, relative to the blade and substantially in the plane of said blade, a limited predetermined distance on opposite sides of said axis, whereby said blade may be angled, relative to said frame, by swinging movement of said arms and a drive means connected to each of said arms between the swivel connections to said frame and said blade on opposed sides of said pivotal frame connections, said drive means adapted to independently swing each of said arms about the swivel connection to said frame, thereby angling the blade and shifting the blade laterally.

Claim 8

An angling mechanism for a bulldozer blade, or the like, comprising: a dozer frame having a longitudinal axis, a pair of arms pivotally attached to said frame substantially equally spaced from said axis and supported for generally horizontal swinging movement, each of said arms attached to said blade by spaced pivotal connections supporting the blade on the frame, said pivotal connections spaced a greater distance on said blade than on said frame to define an adjustable obtuse angle between said arms, means on said blade permitting said swivel connections to shift, relative to the blade and substantially in the plane of said blade, a limited predetermined distance on opposite sides of said axis, whereby said blade may be angled, relative to said frame, by swinging movement of said arms and a drive means connected to each of said arms between the swivel connections to said frame and said blade on opposed sides of said pivotal frame connections, said drive means adapted to independently swing each of said arms about the swivel connection to said frame, thereby angling the blade and shifting the blade laterally.

Claim 9

The angling mechanism defined in claim 6, characterized in that said drive means includes a pair of hydraulic cylinders fixed relative to said frame and each having a piston rod connected to one of said arms.

Claim 10

The angling mechanism defined in claim 6, characterized in that said means on the blade limits the swinging movement of said arms, about the swivel connection to the frame, from a position where the blade is adjacent the frame to a position where the arms define approximately a 90 degree angle.

Claim 11

The angling mechanism defined in claim 8, characterized in that said means on the blade is a pair of slots substantially equally spaced from said axis, said slots having an axis substantially parallel to the plane of the blade.

Claim 12

The angling mechanism defined in claim 9, characterized in that each of said arms include a pin which is received within one of said slots for pivotal and sliding movement therein.

Claim 13

The angling mechanism defined in claim 6, characterized in that said means of said blade includes a pair of slots adjacent the distal ends of said blade which receive the pivotal connections of said arms, said slots substantially equal in length and having an axis substantially parallel to the plane of said blade.

Claim 14

The angling mechanism defined in claim 11, characterized in that said frame includes a stop means which prevents swinging movement of said arms beyond 180* and said slots limit swinging movement of said arms to a position where the arms define an angle greater than approximately 90*, whereby said blade may be positioned by said drive means adjacent said frame or angled by swinging one of said arms about said pivotal connection to the frame, whereby the blade is first angled and thereafter shifted laterally in the angled position.

Claim 15

The angling mechanism defined in claim 11, characterized in that said slots limit the angular relation betwEen the arms to an angle greater than about 90*, whereby said blade may be angled relative to said frame by swinging movement of one of said arms, about the pivotal connection to said frame, and the blade may thereafter be shifted laterally in the angled position.