# US 10,308,228 B2 · Land vehicle with a chassis and a plurality of corner support units attached thereto > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,308,228 B2 - Document ID: US10308228B2 - Status: Granted - Kind: B2 - Application number: 15/880,744 - Filed: 2018-01-26 - Published: 2018-05-31 - Granted: 2019-06-04 - Earliest claimed: 2015-07-28 - Assignees: Hoerbiger Automatisierungstechnik Holding GmbH - Applicants: Hoerbiger Automatisierungstechnik Holding GmbH - Inventors: Peter Roider - Web page: https://patentgrep.com/patent/US10308228B2 ## CPC - B60S 9/12: of telescopic type - B60P 3/36: Auxiliary arrangements; Arrangements of living accommodation (toilet or washing arrangements B60R15/00); Details - B60S 9/22: Means for attaching lifting, supporting, or manoeuvring devices to vehicles (for separate devices B60S11/00) - B60S: SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR - B60P: VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS (vehicles with special provisions for transporting patients or disabled persons, or their personal conveyances A61G3/00) ## Abstract A land vehicle is provided having a chassis and having a plurality of corner support units. Each of the corner support units has a support leg which is mounted in a swiveling manner in a bearing shoe, which is rigidly attached to the land vehicle, about a substantially horizontal axis. The length of the support leg is telescopically variable. The support leg comprises at least two pipe sections, which can be displaced relative to each other in the longitudinal direction. A hydraulic cylinder is arranged in the interior of the support leg by means of which the position of the at least two pipe sections relative to each other, and consequently the length of the support leg, can be modified. A separate hydraulic assembly, arranged on the bearing shoe of each affected corner support unit and loading the hydraulic cylinder, is allocated to each corner support unit. ## Claims ### Claim 1 A land vehicle (1) with a chassis (2) and a plurality of corner support units (3) attached thereto, wherein: each of the corner support units (3) has a support leg (4), which is mounted in a bearing shoe (32) attached rigidly to the land vehicle (1) so as to swivel around a substantially horizontal axis (A); a length of the support leg (4) can be varied telescopically; the support leg (4) comprises at least two tubular portions (5, 6) that can be displaced relative to one another in a longitudinal direction (X) of the support leg; a hydraulic cylinder (19), by means of which a position of the at least two tubular portions (5, 6) relative to one another and thus the length of the support leg (4) can be changed, is disposed in an interior of the support leg (4); each corner support unit (3) is assigned a hydraulic aggregate (40) of its own, respectively disposed on the bearing shoe (32) of the corner support unit (3) in question, wherein a swiveling drive (8) is provided in the form of a hydraulic cylinder (9), and wherein the hydraulic cylinder (19) disposed in the interior of the support leg (4) and the hydraulic cylinder (9) of the swiveling drive (8) are pressurized by the same hydraulic aggregate (40). ### Claim 2 (depends on 1) The land vehicle of claim 1, wherein the support leg (4) can be swiveled between a raised storage position and a substantially vertical operating position. ### Claim 3 (depends on 2) The land vehicle of claim 2, wherein securing means (43) are provided, which function to stabilize an orientation of the support leg (4) in the storage position. ### Claim 4 (depends on 3) The land vehicle of claim 3, wherein the securing means (43) engage with one of the at least two tubular portions and wherein one of the at least two tubular portions carries a support foot (12), of the support leg (4). ### Claim 5 (depends on 1) The land vehicle of claim 1, wherein a spring-mounted support foot (12) is disposed at an end face on the support leg (4). ### Claim 6 (depends on 5) The land vehicle of claim 5, wherein the support foot (12) comprises a swivelable plate (13). ### Claim 7 (depends on 1) The land vehicle of claim 1, wherein the hydraulic cylinder (9) of the swiveling drive (8) is linked to the bearing shoe (32) as well as to the one (5) of the at least two tubular portions (5, 6) of the support leg (4) that is mounted to swivel in the bearing shoe (32), or to a part rigidly connected thereto. ### Claim 8 (depends on 1) The land vehicle of claim 1, wherein the tubular portions (5, 6) of the support leg (4) have a round cross section. ### Claim 9 (depends on 1) The land vehicle of claim 1, wherein the tubular portions (5, 6) of the support leg (4) have a polygonal cross section. ### Claim 10 (depends on 1) The land vehicle of claim 1, wherein the tubular portions (5, 6) are guided relative to one another by means of sliding bearing pieces (20). ### Claim 11 (depends on 1) The land vehicle of claim 1, wherein each corner support unit (3) has a tubeless hydraulic system, wherein a hydraulic rotating coupling (29) is provided in a region of the respective swiveling axis (A) of the support leg (4) in question. ### Claim 12 (depends on 1) The land vehicle of claim 1, wherein a central control and regulating unit with an electronic leveling unit is provided to control the hydraulic aggregates (40). ### Claim 13 (depends on 1) The land vehicle of claim 1, wherein an external hydraulic pressure accumulator is provided. ### Claim 14 A land vehicle (1) with a chassis (2) and a plurality of corner support units (3) attached thereto, wherein: each of the corner support units (3) has a support leg (4), which is mounted in a bearing shoe (32) attached rigidly to the land vehicle (1) so as to swivel around a substantially horizontal axis (A) a length of the support leg (4) can be varied telescopically; the support leg (4) comprises at least two tubular portions (5, 6) that can be displaced relative to one another in a longitudinal direction (X) of the support leg; a hydraulic cylinder (19), by means of which a position of the at least two tubular portions (5, 6) relative to one another and thus the length of the support leg (4) can be changed, is disposed in an interior of the support leg (4); each corner support unit (3) is assigned a hydraulic aggregate (40) of its own, respectively disposed on the bearing shoe (32) of the corner support unit (3) in question, wherein each corner support unit (3) has a tubeless hydraulic system, wherein a hydraulic rotating coupling (29) is provided in a region of the respective swiveling axis (A) of the support leg (4) in question. ### Claim 15 (depends on 14) The land vehicle of claim 14, wherein the hydraulic cylinder (19) disposed in the interior of the support leg (4) also causes swiveling of the support leg (4). ### Claim 16 (depends on 15) The land vehicle of claim 15, wherein a sliding block guide (33) is provided, which couples the length variation and the swiveling of the support leg (4) mechanically with one another. ### Claim 17 (depends on 16) The land vehicle of claim 16, wherein a geometry of the sliding block guide (33) is configured in such a way that, during lengthening of the support leg (4), the swiveling movement of the support leg (4) from a storage position into an operating position takes place during a relatively small fraction of a stroke length of one of the at least two tubular portions (5, 6) relative to the other of the at least two tubular portions (5, 6) of the support leg (4).