# US 2021/0277922 A1 · Hinge for load transport trolleys > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0277922 A1 - Document ID: US20210277922A1 - Status: Published application - Kind: A1 - Application number: 17/253,057 - Filed: 2019-07-01 - Published: 2021-09-09 - Earliest claimed: 2018-07-10 - Assignees: Hilti Aktiengesellschaft - Applicants: Hilti Aktiengesellschaft - Inventors: Kenth KARLSSON - Web page: https://patentgrep.com/patent/US20210277922A1 ## CPC - B25H 3/00: Storage means or arrangements for workshops facilitating access to, or handling of, work tools or instruments (containers or packages with special means for dispensing contents B65D83/00; {nail dispensers B25C3/00}) - F16B 2/185: {using levers} - B62B 1/12: involving parts being adjustable, collapsible, attachable, detachable, or convertible - B62B 2205/33: stowed in a vertical position - B25H: WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS (storing or packaging B65) - F16B: DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D) - B62B: HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES (characterised by animal propulsion B62C; propulsion of sledges by driver or engine B62M) ## Abstract Clamping device for variably positioning an angular setting of at least one shelf on a load transport trolley for transporting loads, preferably toolboxes. The clamping device includes a clamping lever for reversibly setting the clamping device in a clamped or released position, wherein, in the released position, the shelf is moveable; a pull rod which can be reversibly moved by the clamping lever into a first or second position, wherein the clamping device is in the clamped position when the pull rod is set into the first position, and the clamping device is in the released position when the pull rod is set into the second position; an attachment element for connecting the shelf to the clamping device; and a first and second connecting element for connecting the clamping device to a frame of the load transport trolley. ## Claims ### Claim at position 1 1-10. (canceled) ### Claim 11 A clamping device for variably positioning an angular setting of at least one shelf on a load transport trolley for transporting loads, the clamping device comprising: a clamping lever for reversibly setting the clamping device in a clamped or released position, wherein, in the released position, the shelf is movable; a pull rod reversibly moveable by the clamping lever into a first or second position, wherein the clamping device is in the clamped position when the pull rod is set into the first position, and the clamping device is in the released position when the pull rod is set into the second position; an attachment element for connecting the shelf to the clamping device; and a first and second connecting element for connecting the clamping device to a frame of the load transport trolley. ### Claim 12 (depends on 11) The clamping device as recited in claim 11 wherein the attachment element is designed in the form of a cylindrical tube arranged around the pull rod. ### Claim 13 (depends on 12) The clamping device as recited in claim 12 further comprising a first positioning element at a first end of the attachment element, and a second positioning element at a second end of the attachment element. ### Claim 14 (depends on 13) The clamping device as recited in claim 13 wherein the pull rod has a first end and a second end, the first end connectable to the clamping lever, and the second end connectable a blocking element, with the result that, when the clamping lever is moved from the clamped position into the released position, the pull rod is brought from the first position into the second position, wherein, in the first position, the first positioning element is in a form-fitting connection with the first connecting element, and the second positioning element is in a form-fitting connection with the blocking element, and wherein, in the second position, the first positioning element is movable relative to the first connecting element, and the second positioning element is movable relative to the blocking element. ### Claim 15 (depends on 13) The clamping device as recited in claim 13 wherein the pull rod has a first end and a second end, the first end connectable to the clamping lever, and the second end (11b) connectable to a blocking element, with the result that, when the clamping lever is moved from the clamped position into the released position, the pull rod is brought from the first position into the second position, wherein, in the first position, the first positioning element is in a force-fitting connection with the first connecting element, and the second positioning element is in a force-fitting connection with the blocking element, and wherein, in the second position, the first positioning element is movable relative to the first connecting element, and the second positioning element is movable relative to the blocking element. ### Claim 16 (depends on 15) The clamping device as recited in claim 15 wherein the first positioning element includes, on a first lateral surface, a plurality of elevations, and the first connecting element includes, on a further first lateral surface, a further plurality of elevations designed to correspond to the elevations of the first positioning element, with the result that the force-fitting connection is reversibly producible between the first connecting element and the first positioning element. ### Claim 17 (depends on 16) The clamping device as recited in claim 16 wherein the second positioning element includes, on a first second positioning element lateral surface a plurality of second positioning element elevations, and the blocking element includes, on a first blocking element lateral surface, a plurality of blocking element elevations designed to correspond to the second positioning element elevations of the second positioning element, with the result that the force-fitting connection is reversibly producible between the blocking element and the second positioning element. ### Claim 18 (depends on 11) The clamping device as recited in claim 11 wherein the clamping lever (7) includes a rounded projection, whereby a force is exertable on the pull rod when the clamping lever is moved from the clamped position into the released position, with the result that the pull rod is moved from the first position into the second position. ### Claim 19 (depends on 11) The clamping device as recited in claim 11 further comprising a spring element designed as a compression spring between the clamping lever and the first connecting element, with the result that the clamping lever is movable from the released position counter to a spring force of the spring element into the clamped position. ### Claim 20 (depends on 11) The clamping device as recited in claim 11 wherein the blocking element includes at least one pin, and the second connecting element includes a recess for receiving and guiding the at least one pin, the recess being designed to be longer in a direction X than the at least one pin, with the result that the at least one pin is movable in the recess from a first pin position into a second pin position. ### Claim 21 (depends on 11) A toolbox load trolley comprising the clamping device as recited in claim 11.