초록 ▼

A chassis is described which is constructed of two lower side frames which at each end are provided with a wheel or caterpillar track. On each of the two lower side members, there is a horizontal bearing. Each of these bearings are connected to an upper vertical side member which at their upper end

A chassis is described which is constructed of two lower side frames which at each end are provided with a wheel or caterpillar track. On each of the two lower side members, there is a horizontal bearing. Each of these bearings are connected to an upper vertical side member which at their upper end is connected to two parallel cross members through horizontal bearings for the development of a parallelogram connection. Between the lower and upper side members, there are two double-acting hydraulic cylinders. These can be connected in parallel in order to make a weight distribution possible. By means of a regulation valve between pressure side and suction side, respectively, on the double-acting hydraulic cylinders the upper part of the chassis can swing back and forth in the longitudinal direction of the side members. Between the two cross members there is a double-acting hydraulic cylinder which can swing the upper part of the chassis back and forth in the side member's transverse direction by means of a regulation valve. Thus, it is possible to adjust a chassis member to a preferred orientation irrespective of the slope of the surface.

대표청구항 ▼

The invention claimed is: 1. A chassis with plural supporting wheels adjustable disposed for adjusting orientations of a chassis member relative to a reference orientation, comprising two lower side members, each lower side member having a pair of ends, each end of each of the two lower side member

The invention claimed is: 1. A chassis with plural supporting wheels adjustable disposed for adjusting orientations of a chassis member relative to a reference orientation, comprising two lower side members, each lower side member having a pair of ends, each end of each of the two lower side members having one or more wheels or caterpillar tracks, a pair of first couplings on the two lower side members, the first couplings being disposed between front ends and rear ends of the two lower side members, the first couplings rotatable about an axis of rotation substantially transversely of a longitudinal direction of each respective lower side member, two upper side members connected to the first couplings, a pair of second couplings on each upper side member disposed at upper parts of the upper side members spaced from the lower side members, the second couplings rotatable about axes of rotation oriented in the longitudinal direction of the lower side members, and two parallel cross members coupled to the pairs of second couplings forming a parallelogram connection between the upper side members and the two cross members. 2. The chassis of claim 1, further comprising a third coupling on one cross member and a fourth coupling on another cross member, and a first longitudinally adjustable mechanism disposed between the third coupling and the fourth coupling for extending or reducing distances between the third and the fourth couplings. 3. The chassis of claim 2, further comprising a fifth coupling on one lower side member and a sixth coupling on one upper side member, and a second longitudinally adjustable mechanism disposed between the fifth and the sixth couplings for extending or reducing distances between the fifth and the sixth couplings. 4. The chassis of claim 1, further comprising a seventh coupling and an eighth coupling on each cross member, respectively, each of the seventh and the eight couplings rotatable about an axis of rotation oriented in the longitudinal direction of the lower side members. 5. The chassis of claim 4, further comprising a central member disposed between the seventh and the eighth couplings. 6. The chassis of claim 4, further comprising a third cross member and a ninth coupling coupled to the third cross member, the ninth coupling rotatable about an axis of rotation oriented in the longitudinal direction of the lower side members, and tenth couplings at ends of the third cross member rotatable about an axis off rotation oriented in the longitudinal direction of the lower side members. 7. The chassis of claim 6, further comprising a eleventh coupling coupled to each lower side member spaced from the first couplings rotatable about an axis of rotation oriented transversely to the longitudinal direction of the lower side member, and connecting bars disposed on each side between the tenth and the eleventh couplings. 8. The chassis of claim 7, wherein the connecting bars are additional longitudinally adjustable mechanisms for extending or reducing distances between the tenth and the eleventh couplings. 9. The chassis of claim 8, wherein the longitudinally adjustable mechanisms are actuators. 10. The chassis of claim 3, further comprising double-acting hydraulic cylinders disposed between each lower side member and each corresponding upper side member. 11. The chassis of claim 1, further comprising a power source for establishing a preferred orientation of the chassis member. 12. The chassis of claim 10, further comprising a supply circuit for the hydraulic cylinders, and a regulation valve in the supply circuit for controlling orientation of the chassis member by extending or reducing the hydraulic cylinders responsive to surfaces supporting the chassis. 13. The chassis of claim 1, wherein the chassis member is shaped for supporting working tools and for working vertically oriented crops irrespective of slopes of surfaces on which the crops grow.