# US 2023/0407680 A1 · Locking device for movable furniture parts > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0407680 A1 - Document ID: US20230407680A1 - Status: Published application - Kind: A1 - Application number: 18/031,683 - Filed: 2021-10-05 - Published: 2023-12-21 - Earliest claimed: 2020-10-17 - Assignees: Paul Hettich GmbH & Co. KG - Applicants: Paul Hettich GmbH & Co. KG - Inventors: Volker POHLMANN; Peter DIEMBECK - Web page: https://patentgrep.com/patent/US20230407680A1 ## CPC - E05B 65/464: comprising two or more lock elements aligned in end-to-end abutting relation - E05B: LOCKS; ACCESSORIES THEREFOR; HANDCUFFS ## Abstract A locking device for movable furniture parts has a guide rail with displaceable blocking elements, a plurality of latches that can be coupled to a movable furniture part, and, in a locking position, block an opening of the movable furniture part. The blocking elements are movable into a locking position in which all the latches are blocked by the blocking elements from a movement into an unlocking position, and the blocking elements are displaceable along the guide rail in an anti-tipping position via one of the latches, from the locking position into the unlocking position. When one of the latches is positioned in the unlocking position, the movement of all further latches into the unlocking position is blocked, so that only one of the movable furniture parts is moveable into an opening position. ## Claims ### Claim 1 A locking device (10) for movable furniture parts (3), comprising: a) a guide rail (11) on which a plurality of blocking elements (20) are displaceably held; b) a plurality of latches (16), each of which are configured to be coupled to a movable furniture part (3) and are configured to be moved between a locking position and an unlocking position and, in a locking position, block an opening of the movable furniture part (3); c) wherein the blocking elements (20) are movable into a locking position in which all latches (16) are blocked by the blocking elements (20) from moving into the unlocking position; d) wherein the blocking elements (20) are displaceable along the guide rail (11) in an anti-tipping position via one of the latches (16) from the locking position into the unlocking position, and when one of the latches (16) is positioned in the unlocking position, the movement of all further latches (16) into the unlocking position is blocked so that only one of the movable furniture parts (3) is moveable into an opening position, and wherein the blocking elements (20) are movable into a release position in which all the latches (16) are movable from the locking position into the release position on or into a receptacle of a blocking element (20). ### Claim 2 (depends on 1) The locking device according to claim 1, wherein the locking device (10) comprises at least one switching mechanism (15) by means of which the blocking elements (20) on the guide rail (11) are moveable between the locking position, an anti-tipping position and a release position. ### Claim 3 (depends on 1) The locking device according to claim 1, wherein the locking device (10) comprises a first switching mechanism (15) by means of which the blocking elements (20) on the guide rail (11) are movable between the locking position and an anti-tipping position and a second switching mechanism (15) by means of which the blocking elements (20) on the guide rail (11) are movable between the anti-tipping position and a release position. ### Claim 4 (depends on 2) The locking device according to claim 2, wherein the guide rail (11) with a stop (30) for the blocking elements (20) is moveable in the vertical direction via the switching mechanism (15). ### Claim 5 (depends on 1) The locking device according to claim 1, wherein each latch (16) is formed as a driver which is moveable between the locking position and the unlocking position via a self-closing device (7). ### Claim 6 (depends on 1) The locking device according to claim 1, wherein each blocking element (20) comprises a run-up slope (23) and, in an anti-tipping position, one of the latches (16) is movable against the run-up slope (23) in order to displace the blocking element (20) and the blocking elements (20) arranged above said blocking element upwards along the guide rail (11). ### Claim 7 (depends on 1) The locking device according to claim 1, wherein each blocking element (20) comprises a wall (22) for blocking, in the locking position, a movement of one of the latches (16) towards the unlocking position. ### Claim 8 (depends on 1) The locking device according to claim 1, wherein each blocking element (20) comprises a receptacle (24) which is formed as a channel and the latches (16) are moveable along the channels into the unlocking position. ### Claim 9 (depends on 5) The locking device according to claim 5, wherein the wall (22) and the run-up slope (23) are formed protruding from the guide rail (11). ### Claim 10 (depends on 5) The locking device according to claim 5, wherein the receptacle (24) for the latch (16) is arranged between the wall (22) and the run-up slope (23) on the blocking element (20). ### Claim 11 Furniture (1) with a furniture body (2) and several movable furniture parts (3) in the form of drawers which can be locked via a locking device (10).