Bucket-blade attachment for tractors
OwnerJeff M. Veysinventor
Life of this patent
Estimating the term…
Abstract
An earthmoving attachment to be mounted on the front end of a tractor. The attachment includes a frame secured to the tractor, arms pivoted to the frame and extending forwardly and mounting a combination bucket and blade. Hydraulic cylinders individually extend telescoping sections in the arms to effect a skewing of the blade. Another hydraulic cylinder mounting a slider adjacent one end of the blade is operable to tilt the blade or bucket. Other sets of hydraulic cylinders tip the bucket and lift the arms conventionally. Simple adjustments are operable to convert the attachment from the configuration of a front-end-loader to that of a dozer, and to skew, tilt and tip the blade and bucket in various configurations.
Claims17
An earth moving attachment for a tractor having a forward direction of movement and a substantially horizontal base plane on which the tractor sits, said attachment providing angular adjustment of a ground-engaging means such as a blade or bucket, the attachment comprising:
- (a) a frame attached to the tractor;
- (b) two generally forwardly extending arms pivotally mounted on the frame, one on each side of the tractor;
- (c) means for pivoting each of the arms in a fore and aft plane;
- (d) two independently telescoping members, one extending forwardly and downwardly from and supported by each of the arms;
- (e) means for extending and retracting each of the telescoping members directly forwardly and rearwardly when the ground-engaging means is in a ground-engaging position, wherein the telescoping members are extendable and retractable together or independently with respect to the arms;
- and
- (f) forward ground-engaging means entirely supported by the telescoping members and attached to the telescoping members by joint means for allowing the ground-engaging means to skew in a generally horizontal plane when one telescoping member is extended further than the other.
A materials handling attachment for a tractor, the tractor having a body supported above the ground and a front end, comprising:
- two forwardly extending arms, one on each side of the body, and pivotally carried by the body;
- lifting power means for pivoting the arms, each in a fore and after extending upright plane;
- a pair of telescoping members, telescopingly engaged by the arms, extending generally forwardly and having respective spaced apart front ends;
- telescoping power means for extending and retracting each telescoping member independently in generally linear telescoping action with respect to the arms;
- and
- a generally transversely extending tool entirely supported by and spanning the telescoping members and pivotably connected to the telescoping members adjacent their front ends so that in operation, when the tool is close to the ground and when the telescoping members are extended unequally, the tool is skewed with respect to the tractor front end.
A materials handling attachment for a tractor, the tractor having a body supported above the ground and a front end, comprising:
- first and second forwardly extending arms, one on each side of the body, and pivotably carried by the body;
- lifting power means for pivoting the arms, each in a fore and after extending upright plane;
- and
- a transverse extending tool forwardly supported by the arms and connected to the first and second arms respectively by laterally spaced first and second connections, said tool being supported entirely by said connections, the first connection permitting only simple pivoting of the tool relative to the first arm in a generally transverse upright plane, and the second connection permitting translatory motion between the second arm and the tool in said plane and means for controlling the translatory motion so that, in operation, with the tool close to the ground, the tool may be selectively pivoted relative to the first arm in the generally transverse upright plane so as to define a variable angle of tilt of the tool relative to the tractor body.
A materials handling attachment for a tractor, the tractor having a body supported above the ground and a front end, comprising:
- a frame carried by the body;
- a pair of forwardly extending arms, one on each side of the tractor and pivotably carried by the frame;
- lift power means for pivoting the arms, each in a generally fore and aft upright plane;
- a pair of forwardly extending telescoping members, one extending from each of the arms and each having a telescoping portion generally aligned with and engaging an arm, and a tool carrying portion extending forwardly and downwardly with respect to the telescoping portion, the forward ends of the tool carrying portions being spaced apart;
- telescoping power means for independent extension and retraction of each of the telescoping portions relative to the arms;
- a transversely extending materials handling tool spanning and connected to the spaced apart forward ends of the tool carrying portions, the connection of one of said portions to the tool permitting translatory motion between said one of the portions and the tool and the connections of both portions permitting tipping of the tool about a transverse axis;
- tilt power means connected between one of the telescoping members and the tool for controlling the translatory motion so that in operation, with the tool close to the ground, the tool may be selectively tilted relative to the ground in a generally upright plane;
- and
- tipping power means extending between at least one of the telescoping members and the tool for controllably tipping the tool about the transverse axis.
Dependencies are inferred from the claim text.