# US 2017/0254113 A1 · Cylinder lock > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0254113 A1 - Document ID: US20170254113A1 - Status: Published application - Kind: A1 - Application number: 15/316,318 - Filed: 2015-06-12 - Published: 2017-09-07 - Earliest claimed: 2014-06-13 - Assignees: ABUS August Bremicker Söhne KG - Applicants: Abus August Bremicker SöHne KG - Inventors: Ernst Pankratius; Gerhard Meckbach - Web page: https://patentgrep.com/patent/US20170254113A1 ## CPC - E05B 29/0066: {Side bar locking} - E05B 29/0013: {with rotating plate tumblers (E05B29/0033 takes precedence; plate tumblers which are not set by inserting the key E05B21/06)} - E05B 29/0053: {with increased picking resistance} - E05B 27/0082: {Side bar locking} - E05B: LOCKS; ACCESSORIES THEREFOR; HANDCUFFS ## Abstract A cylinder lock comprises a cylinder housing (11) and a cylinder core (13) which is rotatably mounted in the cylinder housing. A plurality of plate tumblers (21) are provided in the cylinder core, wherein each of the plurality of plate tumblers is movable between a locking position and an unlocking position. At least one of the plurality of plate tumblers has a bolt-receiving depression (47). The cylinder lock further comprises at least one bolt element (27) which has a bolt tip (35), wherein the bolt element is movable between a blocking position and a release position. In the release position, the bolt tip engages in the bolt-receiving depression of the plate tumbler. The plate tumbler has, adjacent to the bolt-receiving depression, at least one bolt latch-in depression (45) in which the bolt tip of the bolt element engages in a latching manner when the at least one plate tumbler is moved out of the unlocking position, wherein the bolt latch-in depression is less deep than the bolt-receiving depression. ## Claims ### Claim 1 A cylinder lock having a cylinder housing (11) and a cylinder core (13) rotatably supported in the cylinder housing (11), wherein the cylinder housing (11) has at least one tumbler blocking recess (15, 15′) and a latch blocking recess (17); wherein a plurality of disk tumblers (21) are provided in the cylinder core (21), with each of the plurality of disk tumblers (21) having an engagement section (23, 23′) and being movable between a latched position and an unlatched position, with the engagement section (23, 23′) engaging into the tumbler blocking recess (15, 15′) of the cylinder housing (11) in the latched position and being brought out of engagement with the tumbler blocking recess (15, 15) in the unlatched position, and with at least one of the plurality of disk tumblers (21) having a latch reception recess (47); and wherein the cylinder lock furthermore has a latch element (27) which has a latch tip (35) and a blocking section (37), with the latch element (27) being movable between a blocking position and a release position and being preloaded into the release position, with the blocking section (37) engaging into the latch blocking recess (17) of the cylinder housing (11) in the blocking position, and with the latch tip (35) engaging into the latch reception recess (47) of the at least one disk tumbler (21) and the blocking section (37) being brought out of engagement with the latch blocking recess (17) of the cylinder housing (11) in the release position, wherein the at least one disk tumbler (21) has, adjacent to the latch reception recess (47), at least one latch catching recess (49a, 49a′, 49b, 49b′) into which the latch tip (35) of the latch element (27) catchingly engages when the at least one disk tumbler (21) is displaced out of the unlatched position by a first path length, with the latch catching recess (49a, 49a′, 49b, 49b′) being less deep than the latch reception recess (47) of the disk tumbler (21); wherein the latch element (27) has a connection section (39) between the latch tip (35) and the blocking section (37), the connection section being narrower with respect to a tangential direction about the axis of rotation (A) of the cylinder core (13) than the blocking section (37) of the latch element (27); wherein at one side (46a), which faces in a rotary direction of opening (O) of the cylinder core (13), the connection section (39) of the latch element (27) ends flush with the blocking section (37) of the latch element (27), and wherein at another side (46b), which faces against the rotary direction of opening (O) of the cylinder core (13), the connection section (39) of the latch element (27) is set back with respect to the blocking section (37) of the latch element (27) so that a lateral projection (65) is formed. ### Claim 2 (depends on 1) A cylinder lock in accordance with claim 1, wherein the at least one disk tumbler (21) has, adjacent to the latch reception recess (47), a plurality of latch catching recesses (49a, 49a′, 49b, 49b′) arranged next to one another. ### Claim 3 (depends on 1) A cylinder lock in accordance with claim 1, wherein the at least one disk tumbler (21) has a respective at least one latch catching recess (49a, 49a′, 49b, 49b′) at both sides of the latch reception recess (47). ### Claim 4 (depends on 1) A cylinder lock in accordance with claim 1, wherein the at least one disk tumbler (21) has a respective plurality of latch catching recesses (49a, 49a′, 49b, 49b′) arranged next to one another at both sides of the latch reception recess (47). ### Claim 5 (depends on 1) A cylinder lock in accordance with claim 1, wherein the latch reception recess (47) is provided at a side edge of the at least one disk tumbler (21) with respect to the direction of movement of the at least one disk tumbler (21). ### Claim 6 (depends on 1) A cylinder lock in accordance with claim 1, wherein the latch reception recess (47) and the at least one latch catching recess (49a, 49a′, 49b, 49b′) are substantially triangular. ### Claim 7 (depends on 1) A cylinder lock in accordance with claim 1, wherein the at least one disk tumbler (21) has an intermediate elevated portion (51a, 51b) between the latch reception recess (47) and the at least one latch catching recess (49a, 49a′, 49b, 49b′), with the latch tip (35) having an intermediate recess (43), and with the intermediate elevated portion (51a, 51b) of the at least one disk tumbler (21) being adapted to engage into the intermediate recess (43) of the latch tip (35) when the at least one disk tumbler (21) is displaced out of the unlatched position by a second path length which is smaller than the first path length. ### Claim 8 (depends on 7) A cylinder lock in accordance with claim 7, wherein the intermediate recess (43) of the latch tip (35) is formed as a groove (41) which extends in parallel with the axis of rotation (A) of the cylinder core (13). ### Claim 9 (canceled) ### Claim 10 (canceled) ### Claim 11 (canceled) ### Claim 12 (canceled) ### Claim 13 (depends on 1) A cylinder lock in accordance with claim 1, wherein a holding plate (31) is arranged between the cylinder core (13) and the cylinder housing (11), with a latch preloading device (45, 45′) associated with the latch element (27) being supported between the holding plate (31) and the latch element (27). ### Claim 14 (depends on 1) A cylinder lock in accordance with claim 1, wherein each disk tumbler (21) of a group which comprises some or all of the plurality of disk tumblers (21) has a latch reception recess (47) and at least one latch catching recess (49a, 49a′, 49b, 49b′), with the latch element (27) extending along the axis of rotation (A) of the cylinder core (13), and with the latch tip (35) engaging into the latch reception recesses (47) of the group of disk tumblers (21) in the release position of the latch element (27). ### Claim 15 (depends on 1) A cylinder lock in accordance with claim 1, wherein the plurality of disk tumblers (21) are preloaded into the latched position along a first preload direction (Y), with the latch element (27) being preloaded into the release position along a second preload direction (X), and with the first preload direction (Y) and the second preload direction (X) extending obliquely or perpendicular to one another. ### Claim 16 (depends on 1) A cylinder lock in accordance with claim 1, wherein the plurality of disk tumblers (21) are preloaded into the latched position by means of a respective tumbler preloading device (55, 55′), with the latch element (27) being preloaded into the release position by means of a latch preloading device (45, 45′), and with the tumbler preloading devices (55, 55′) and the latch reception recess (47) of the at least one disk tumbler (21) and the latch preloading device (45, 45′) and the latch tip (35) of the latch element (27) being coordinated such that, in a closed position of the cylinder core (13), the plurality of disk tumblers (21) adopt the latched position and the at least one disk tumbler (21) hereby urges the latch element (27) into the blocking position. ### Claim 17 (depends on 1) A cylinder lock in accordance with claim 1, wherein each of the plurality of disk tumblers (21) has a key introduction opening (63) whose outline has a first coding section (59a) and a second coding section (59b), with a key (33) associated with the cylinder lock having a sequence of first incisions (61a, 61a) which correspond to the first coding sections (59a) of the plurality of disk tumblers (31) and having a sequence of second incisions (61b, 61b′) which correspond to the second coding sections (59b) of the plurality of disk tumblers (21). ### Claim 18 (depends on 1) A cylinder lock in accordance with claim 1, wherein the lateral projection (65) is configured to be urged over an outer surface of the cylinder core (13) when a torque in the rotary direction of opening (O) of the cylinder core (13) is exerted onto the cylinder core (13) while the latch element (27) is in the blocking position. ### Claim 19 A cylinder lock having a cylinder housing (11) and a cylinder core (13) rotatably supported in the cylinder housing (11), wherein the cylinder housing (11) has at least one tumbler blocking recess (15, 15) and a latch blocking recess (17); wherein a plurality of disk tumblers (21) are provided in the cylinder core (21), with each of the plurality of disk tumblers (21) having an engagement section (23, 23′) and being movable between a latched position and an unlatched position, with the engagement section (23, 23) engaging into the tumbler blocking recess (15, 15) of the cylinder housing (11) in the latched position and being brought out of engagement with the tumbler blocking recess (15, 15′) in the unlatched position, and with at least one of the plurality of disk tumblers (21) having a latch reception recess (47); and wherein the cylinder lock furthermore has a latch element (27) which has a latch tip (35) and a blocking section (37), with the latch element (27) being movable between a blocking position and a release position and being preloaded into the release position, with the blocking section (37) engaging into the latch blocking recess (17) of the cylinder housing (11) in the blocking position, and with the latch tip (35) engaging into the latch reception recess (47) of the at least one disk tumbler (21) and the blocking section (37) being brought out of engagement with the latch blocking recess (17) of the cylinder housing (11) in the release position, wherein the at least one disk tumbler (21) has, adjacent to the latch reception recess (47), at least one latch catching recess (49a, 49a′, 49b, 49b′) into which the latch tip (35) of the latch element (27) catchingly engages when the at least one disk tumbler (21) is displaced out of the unlatched position by a first path length, with the latch catching recess (49a, 49a′, 49b, 49b′) being less deep than the latch reception recess (47) of the disk tumbler (21); wherein the latch element (27) has a connection section (39) between the latch tip (35) and the blocking section (37), the connection section being narrower with respect to a tangential direction about the axis of rotation (A) of the cylinder core (13) than the blocking section (37) of the latch element (27); wherein a holding plate (31) is associated with the latch element (27) and has a support opening (53), with the connection section (39) of the latch element (27) penetrating through the support opening (53) when the latch element (27) is in the blocking position; wherein, when the at least one disk tumbler (21) is in the latched position and the latch element (27) is in the blocking position, a first rotary clearance exists between the blocking section (37) of the latch element (27) and the latch blocking recess (17) of the cylinder housing (11) with respect to a rotary actuation of the cylinder core (13), a second rotary clearance exists between the connection section (39) of the latch element (27) and the support opening (53) of the associated holding plate (31), and a third rotary clearance exists between the engagement section (23, 23′) of the at least one disk tumbler (21) and the tumbler blocking recess (15, 15′) of the cylinder housing (11); and wherein the first rotary clearance is smaller than the second rotary clearance and the second rotary clearance is smaller than the third rotary clearance. ### Claim 20 (depends on 19) A cylinder lock in accordance with claim 19, wherein the holding plate (31) is arranged between the cylinder core (13) and the cylinder housing (11), with a latch preloading device (45, 45′) associated with the latch element (27) being supported between the holding plate (31) and the latch element (27).