Patent US3630544A successfully refreshed from Google Patents.
US3630544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilizer for earthmoving machinery
Assignee: Case LLC
•
Filing: 1970-06-10
•
Granted: 1971-12-28
•
Expires: 1990-06-10
Abstract
Abstract An earthmoving machine, such as a backhoe or the like, carried on a vehicle which is provided with opposite, outwardly extending stabilizer arms which are pivotally mounted on the machine by universal pivot arrangement to permit swinging movement of the stabilizer arms in a vertical plane as well as adjustable angular movement of the stabilizer arms in a horizontal plane.
Inventors
- 👤 James L Grisham
- 👤 Rudolf Horsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:47
CPC Classifications
E; E02; E02F; E02F9/00; E02F9/08; E02F9/085; B; B62; B62D; B62D37/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
338 words
In an earthmoving machine supported on a land vehicle comprising an implement mounted on an adjustable boom for selective extension and contraction under load relative to said vehicle, said vehicle having rotatable ground support means, a load absorbing and stabilizing mechanism pivotally attached to said earthmoving machine to support the earthmoving machine when said earthmoving machine is in working position comprising a pair of stabilizer arms, each such arm having its inner end pivotally attached to the frame of said earthmoving machine to extend from either side of said frame, each such arm having a ground-engaging pad at its outer end, and each of said stabilizer arms being pivotally secured to a linear actuator pivotally connected between said frame and a medial portion of said stabilizer arm, actuation of said actuator swinging said stabilizer arm in a vertical plane relative to said ground; the improvement comprising: a first pair of spaced apertured bracket means interposed between the inner end of each stabilizer arm and said frame, one of said bracket means being provided with at least two apertures disposed in an angular position relative to each other, the other of said bracket means supporting a spherical bearing, the inner end of each of said stabilizer arms extending between one of said pair of bracket means and being provided with an aperture adapted to be aligned with said spherical bearing on said other bracket means and with a selected one of said apertures in said one bracket means, a pivot pin removably extending through said spherical bearing, through said aperture in said stabilizer arm and through the selected aperture in said one bracket means to pivotally connect said stabilizer arm to said frame, said spherical bearing and said other bracket permitting relocation of said stabilizer arm in a horizontal plane by repositioning said pin in another selected aperture of said one bracket means; and universal bearing means interposed between said linear actuator and said frame to permit pivotal movement of said linear actuator as said stabilizer arm is relocated.
Claim 2
Dependent Claim
338 words
In an earthmoving machine supported on a land vehicle comprising an implement mounted on an adjustable boom for selective extension and contraction under load relative to said vehicle, said vehicle having rotatable ground support means, a load absorbing and stabilizing mechanism pivotally attached to said earthmoving machine to support the earthmoving machine when said earthmoving machine is in working position comprising a pair of stabilizer arms, each such arm having its inner end pivotally attached to the frame of said earthmoving machine to extend from either side of said frame, each such arm having a ground-engaging pad at its outer end, and each of said stabilizer arms being pivotally secured to a linear actuator pivotally connected between said frame and a medial portion of said stabilizer arm, actuation of said actuator swinging said stabilizer arm in a vertical plane relative to said ground; the improvement comprising: a first pair of spaced apertured bracket means interposed between the inner end of each stabilizer arm and said frame, one of said bracket means being provided with at least two apertures disposed in an angular position relative to each other, the other of said bracket means supporting a spherical bearing, the inner end of each of said stabilizer arms extending between one of said pair of bracket means and being provided with an aperture adapted to be aligned with said spherical bearing on said other bracket means and with a selected one of said apertures in said one bracket means, a pivot pin removably extending through said spherical bearing, through said aperture in said stabilizer arm and through the selected aperture in said one bracket means to pivotally connect said stabilizer arm to said frame, said spherical bearing and said other bracket permitting relocation of said stabilizer arm in a horizontal plane by repositioning said pin in another selected aperture of said one bracket means; and universal bearing means interposed between said linear actuator and said frame to permit pivotal movement of said linear actuator as said stabilizer arm is relocated.
Claim 3
Dependent Claim
323 words
In a stabilizing arrangement for a backhoe or the like having a frame supporting a load-handling implement for intermittent extension and contraction relative to said frame, and swinging movement about a vertical axis, ground support means for said frame comprising at least one stabilizer arm pivoted to one side of said frame for (1) swinging movement in a vertical plane between an inactive position and a ground-engaging position and (2) adjustable swinging movement in a horizontal plane to vary the angular position of said stabilizer arm relative to the longitudinal centerline of said frame; the improvement comprising: opposed bracket means extending from said frame adapted to receive one end of said stabilizer arm having an aperture therein; one of said bracket means being provided with a universal bearing and the other of said bracket means being provided with a plurality of apertures, a removable pivot pin adapted for extension through said universal bearing, through said aperture in said stabilizer arm and through a selected aperture of said plurality of apertures in said other bracket means to pivotally connect said stabilizer arm to said frame for swinging movement in said vertical plane about said pivot pin and adjustable swinging movement in said horizontal plane about said universal bearing; an extendable link pivotally connected to the other eNd of said stabilizer arm; means to universally pivotally connect said extendable link to said frame above the pivot connection of said stabilizer arm to thereby permit unitary swinging movement of said stabilizer arm and said extendable link in a vertical plane and adjustable swinging movement in a horizontal plane wherein said stabilizer arm is being angularly positioned by the removal of said pivot pin from the selected aperture in said other bracket and redisposition of said pivot pin in another selected aperture in said other bracket to thereby vary the angular horizontal position of said stabilizer arm in the fore or aft direction relative to said frame.
Claim 4
Dependent Claim
323 words
In a stabilizing arrangement for a backhoe or the like having a frame supporting a load-handling implement for intermittent extension and contraction relative to said frame, and swinging movement about a vertical axis, ground support means for said frame comprising at least one stabilizer arm pivoted to one side of said frame for (1) swinging movement in a vertical plane between an inactive position and a ground-engaging position and (2) adjustable swinging movement in a horizontal plane to vary the angular position of said stabilizer arm relative to the longitudinal centerline of said frame; the improvement comprising: opposed bracket means extending from said frame adapted to receive one end of said stabilizer arm having an aperture therein; one of said bracket means being provided with a universal bearing and the other of said bracket means being provided with a plurality of apertures, a removable pivot pin adapted for extension through said universal bearing, through said aperture in said stabilizer arm and through a selected aperture of said plurality of apertures in said other bracket means to pivotally connect said stabilizer arm to said frame for swinging movement in said vertical plane about said pivot pin and adjustable swinging movement in said horizontal plane about said universal bearing; an extendable link pivotally connected to the other eNd of said stabilizer arm; means to universally pivotally connect said extendable link to said frame above the pivot connection of said stabilizer arm to thereby permit unitary swinging movement of said stabilizer arm and said extendable link in a vertical plane and adjustable swinging movement in a horizontal plane wherein said stabilizer arm is being angularly positioned by the removal of said pivot pin from the selected aperture in said other bracket and redisposition of said pivot pin in another selected aperture in said other bracket to thereby vary the angular horizontal position of said stabilizer arm in the fore or aft direction relative to said frame.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |