Reversible and adjustable bilevel seat for dual-purpose vehicle
AssigneeCaterpillar Tractor Co.
InventorGonzalo D. V. Meza
Life of this patent
Estimating the term…
Abstract
A seat for a dual-purpose vehicle having a first implement at the front and a backhoe at the rear includes a base, a translational assembly mounted for fore-and-aft adjustment on the base, with a latch operable either from the front or the rear, and a rotational assembly mounted for rotation about a transverse pivot axis on the translational assembly. The rotational assembly has first and second cushioned members at an angle of about 100.degree. to one another, and rotates through an angle of about 80.degree. between a forwardly facing position and a more elevated rearwardly facing position. A spring loaded plunger on a side of the translational assembly engages either of two holes in an adjacent part of the rotational assembly to lock the latter selectively in either of said positions.
Claims14
A reversible and adjustable seat apparatus for an operator's station of a dual-purpose vehicle having a first implement at the front and a backhoe at the rear with backhoe controls which are higher above the vehicle platform than are the first implement controls, said seat apparatus comprising, in combination:
- a base fixed to the vehicle platform;
- mounting means on the base comprising parallel upright side members;
- a rotational assembly comprising a first transverse plate, a first cushion member secured to said first transverse plate, a second transverse plate, a second cushion member secured to said second transverse plate, parallel upright arms flanking said plates immediately adjacent the upright side members, and aligned pivots on said arms journalled in sockets in said side members to define a pivot axis on which the rotational assembly may be turned between a forwardly facing position with the first cushion member forming a seat while the second cushion member forms a backrest, and a rearwardly facing position with the second cushion member forming a seat while the first cushion member forms a backrest, said pivot axis being so located that the seat is at a higher level in the rearwardly facing position, and being at the intersection of planes which bisect the following angles;
- (a) the angle between the seating surface of the first cushion member in its forwardly facing position and in its rearwardly facing position, and
- (b) the angle between the seating surface of the second cushion member in its forwardly facing position and in its rearwardly facing position;
- and means for selectively locking said rotational assembly to said mounting means in either of said positions.
A reversible and adjustable seat apparatus for an operator's station of a dual-purpose vehicle having a first implement at the front and a backhoe at the rear with backhoe controls which are higher above the vehicle platform than are the first implement controls, said seat apparatus comprising, in combination:
- a base fixed to the vehicle platform;
- a translational assembly which includes a transversely extending bottom member which forms the lowermost part of said translational assembly and upright side members of substantial height supported upon said bottom member;
- adjusting means on the bottom member mounting said translational assembly on the base for fore-and-aft adjustment, said adjusting means being of small height so the bottom member of the translational assembly is close to the base;
- a manual latch for securing the translational assembly selectively in various adjusted positions;
- a rotational seat assembly comprising a first transverse plate, a first cushion member secured to said first transverse plate, a second transverse plate, a second cushion member secured to said second transverse plate, said plates and cushion members being longer from front to rear than is said translational assembly, parallel upright arm rests flanking said plates and connected thereto between and immediately adjacent the upright side members, and aligned pivots on said arm rests journalled in sockets which surmount said side members of the translational assembly to define a pivot axis on which the rotational assembly may be turned between a forwardly facing position with the first cushion member forming a seat while the second cusion member forms a backrest, and a rearwardly facing position with the second cushion member forming a seat while the first cushion member forms a backrest, said pivot axis being so located that the seat is at a higher level in the rearwardly facing position;
- and locking means on an upright side member which is releasably engageable with one of the arm rests for selectively locking said rotational assembly to said translational assembly in either of said positions.
Dependencies are inferred from the claim text.