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US 6,227,304 B1Granted
Upper hitch link
AssigneeCase Corporation
InventorDaniel K. Schlegel
Life of this patent
Estimating the term…
Abstract
A work vehicle includes a front, first and second opposite sides extending rearwardly from the front, first and second lower links extending forward the front and an upper link above and between the first and second lower links. The first and second lower links have first end portions pivotably supported about a first axis and second end portions configured for being coupled to an implement. The upper link includes a tongue and first and second arms extending from the tongue. The first and second arms are spaced apart from one another and receive the front and first and second sides of the vehicle therebetween. The first and second arms are pivotably coupled to the vehicle to pivotably support the tongue about an axis rearward of the front of the vehicle.
Claims35
An upper hitch link for use with a three point hitch adapted for use with a work vehicle having a front, first and second opposite sides extending rearwardly from the front, and a front axle the upper hitch link comprising:
- a tongue;
- and
- first and second arms coupled to the tongue, wherein the first and second arms are sufficiently spaced apart from one another to receive the front and the first and second sides of the work vehicle therebetween, wherein the first and second arms are adapted to be pivotably coupled to the vehicle to pivotably support the tongue such that the tongue pivots about a first axis rearward of the front of the vehicle and forward the front axle and wherein a substantial portion of the first and second arms extend rearward of the front of the vehicle.
A hitch for use with a work vehicle having a longitudinal length, a front and first and second opposite sides extending rearwardly from the front, the hitch comprising:
- first and second lower links adapted to extend forward the front of the vehicle, the first and second lower links adapted to pivot about a first axis;
- an actuator coupled to at least one of the first and second lower links, the actuator being configured to pivot the first and second lower links about the first axis;
- and
- an upper link adapted to be connected to the vehicle above and between the first and second lower links, the upper link including:
- first and second arms adapted to be pivotably coupled to the vehicle about a second axis rearward of the front of the vehicle, wherein the first and second arms are sufficiently spaced apart from one another to receive the front and the first and second sides of the vehicle therebetween;
- a cross bar interconnecting the first and second arms forward the front of the work vehicle, wherein the cross bar extends substantially perpendicular to the longitudinal length of the work vehicle;
- and
- a tongue extending from the cross bar, wherein the tongue is configured to be coupled to an implement.
5 more elements
A work vehicle comprising:
- a front;
- first and second opposite sides extending rearwardly from the front;
- a front axle;
- first and second lower links extending forward the front, the first and second links having first end portions pivotably supported about a first axis and second end portions configured for being coupled to an implement;
- an actuator coupled to at least one of the first and second lower links and configured to pivot at least one of the first and second lower links about the first axis;
- and
- an upper link including:
- a tongue;
- and
- first and second arms extending from the tongue, wherein the first and second arms are spaced from one another to receive the front and the first and second sides of the vehicle therebetween and wherein the first and second arms are pivotably coupled to the vehicle to pivotably support the tongue such that the tongue pivots about a second axis rearward the front of the vehicle and forward the front axle.
7 more elements
A work vehicle comprising:
- an operator station including a steering wheel having a center hub;
- a front having a first forward most point;
- first and second opposite sides extending rearwardly from the front;
- a front-mounted three-point hitch having a second forward most point and including:
- first and second lower links extending forward the front, the first and second links having first end portion pivotably supported about a first axis rearward the first forward most point and second end portions configured for being coupled to an implement;
- and
- an upper link including:
- a tongue;
- first and second arms extending from the tongue, wherein the first and second arms are spaced from one another to receive the front and the first and second sides of the vehicle therebetween, wherein the first and second arms are pivotably coupled to the vehicle to pivotably support the tongue such that the tongue pivots about a second axis rearward the front of the vehicle wherein the second forward most point of the upper hitch link is longitudinally spaced from the hub by a distance less than 3.5 meters wherein the tongue extends forwardly away from the front of the vehicle and has a first rear end fixed to first and second arms against movement about a horizontal axis relative the first and second arms and a second opposite end adapted to be pivotally coupled to an implement;
- and
- an actuator coupled between the work vehicle and at least one of the first and second lower links and the upper link to pivot the front mounted three-point hitch.
8 more elements
A hitch for use with a work vehicle having a longitudinal length, a front and first and second opposite sides extending rearwardly from the front, the hitch comprising:
- first and second lower links adapted to extend forward the front of the vehicle;
- and
- an upper link adapted to be connected to the vehicle above and between the first and second lower links, the upper link including:
- first and second arms adapted to be pivotably coupled to the vehicle about a first axis rearward of the front of the vehicle, wherein the first and second arms are sufficiently spaced apart from one another to receive the front and the first and second sides of the vehicle therebetween;
- a cross bar interconnecting the first and second arms forward the front of the work vehicle, wherein the cross bar extends substantially perpendicular to the longitudinal length of the work vehicle;
- a tongue extending from the cross bar, wherein the tongue is configured to be coupled to an implement;
- and
- a front axle longitudinally spaced from the front of the work vehicle, wherein the first axis transversely extends between the first and second opposite sides halfway between the front of the work vehicle and the front axle.
5 more elements
An upper hitch link for use with a three point hitch adapted for use with a work vehicle having a front and first and second opposite sides extending rearwardly from the front, the upper hitch link comprising:
- a tongue;
- and
- first and second arms coupled to the tongue, wherein the first and second arms are sufficiently spaced apart from one another to receive the front and the first and second sides of the work vehicle therebetween, wherein the first and second arms are adapted to be pivotably coupled to the vehicle to pivotably support the tongue such that the tongue pivots about a first axis rearward of the front of the vehicle, wherein a substantial portion of the first and second arms extend rearward of the front of the vehicle and wherein the tongue is adapted to extend forwardly away from the front of the vehicle and has a first rear end fixed against movement about a horizontal axis relative to the first and second arms and a second opposite end adapted to be pivotally coupled to an implement.
A work vehicle comprising:
- a front;
- first and second opposite sides extending rearwardly from the front;
- first and second lower links extending forward the front, the first and second links having first end portions pivotably supported about a first axis and second end portions configured for being coupled to an implement;
- an actuator coupled to at least one of the first and second lower links and configured to pivot at least one of the first and second lower links about the first axis;
- and
- an upper link including:
- a tongue;
- and
- first and second arms extending from the tongue, wherein the first and second arms are spaced from one another to receive the front and the first and second sides of the vehicle therebetween, wherein the first and second arms are pivotably coupled to the vehicle to pivotably support the tongue such that the tongue pivots about a second axis rearward the front of the vehicle and wherein the tongue extends forwardly from the front of the vehicle and has a first rear end fixed to the first and second arms against movement about a horizontal axis relative the first and second arms and a second opposite end adapted to be pivotally coupled to an implement.
6 more elements
Dependencies are inferred from the claim text.