# US 2009/0260930 A1 · Clutch arrangement for a wear adjustment device for a disk brake > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2009/0260930 A1 - Document ID: US20090260930A1 - Status: Published application - Kind: A1 - Application number: 12/373,132 - Filed: 2006-11-08 - Published: 2009-10-22 - Earliest claimed: 2006-07-11 - Inventors: Joachim Lotz - Web page: https://patentgrep.com/patent/US20090260930A1 ## CPC - F16D 65/567: {for mounting on a disc brake} - F16D 65/568: {for synchronous adjustment of actuators arranged in parallel} - F16D 2200/0004: metallic - F16D 2250/0023: Shaping by pressure - F16D 2250/0046: Coating - F16D: COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES ## Abstract The description relates to a clutch arrangement for a wear adjustment device for a disk brake in vehicles, in which wear adjustment device a rotating lever which is actuated during braking acts on at least one displaceable element which actuates at least one adjusting spindle which presses a brake lining in direction of a brake disk. The adjustment device is so designed that it adjusts the adjusting spindle by continued rotation, a one-way rotation and overload clutch arrangement which blocks in the adjusting direction being provided for this purpose. The one-way rotation and overload clutch arrangement has stamped metal parts, and the shaping area is generated by means of plastic injection molding. ## Claims ### Claim 1 A clutch arrangement for a wear adjustment device for a disk brake in vehicles; wherein, in the wear adjustment device, a rotating lever which is actuated during braking acts on at least one displaceable element which actuates at least one adjusting spindle which presses a brake lining in direction of a brake disk; wherein the adjustment device is so designed that it adjusts the adjusting spindle by continued rotation, a one-way rotation and overload clutch arrangement which blocks in the adjusting direction being provided for this purpose; wherein stamped metal parts are provided in the one-way rotation and overload clutch arrangement instead of drawn and hot-pressed metal parts, and the shaping areas are generated by means of plastic injection molding; wherein the one-way rotation and overload clutch arrangement comprises a clutch bushing which is fashioned by stamping soft-annealed strip material; wherein the one-way rotation and overload clutch arrangement comprises a switching part which is worked up from seamlessly drawn pipe; and wherein a multiple-part clutch bushing and a tubular switching part are inserted one inside the other in a positive engagement in the one-way rotation and overload clutch arrangement and are connected to one another by plastic injection molding. ### Claim 2 (depends on 1) The clutch arrangement according to claim 1; wherein a positive engagement is provided between the stamped metal parts and the plastic overmolding and possibly also between the stamped metal parts themselves. ### Claim 3 (depends on 2) The clutch arrangement according to claim 2; wherein the stamped metal parts comprise a shift fork plate and a freewheel sleeve which are provided with plastic overmolding. ### Claim 4 (depends on 3) The clutch arrangement according to claim 3; wherein the shift fork plate and/or the freewheel sleeve have projections or recesses on the plate and/or projecting strips or grooves on the outer sleeve surface. ### Claim 5 (depends on 1) The clutch arrangement according to claim 1; wherein welds or weld seams provide additional support. ### Claim 6 (depends on 1) The clutch arrangement according to claim 1; wherein end radii which are overmolded with plastic are provided in the one-way rotation and overload clutch arrangement instead of machined metal surfaces to produce a fit for axially securing a freewheel arrangement. ### Claim 7 (depends on 6) The clutch arrangement according to claim 6; wherein the plastic of the end radii which are overmolded with plastic is shrunk on the outer surfaces when cooled. ### Claim 8 (depends on 7) The clutch arrangement according to claim 7; wherein the support that can be transmitted by the shrunk-on plastic is reinforced by a switching plate. ### Claim 9 (depends on 1) The clutch arrangement according to claim 1; wherein a one-piece or two-piece plastic part which is injection molded from plastic is provided in the one-way rotation and overload clutch arrangement instead of metal spring elements. ### Claim 10 (depends on 1) The clutch arrangement according to claim 1; wherein sliding bearings are provided in the one-way rotation and overload clutch arrangement for the bearing support of the freewheel arrangement instead of needle bearings. ### Claim 11 (depends on 1) The clutch arrangement according to claim 1; wherein the one-way rotation and overload clutch arrangement makes use of plastic injection-molded connections such as the connection between the clutch bushing and the switching part instead of machined metal stop edges. ### Claim 12 (depends on 1) The clutch arrangement according to claim 1; wherein the freewheel sleeve having a plastic injection molding is outfitted with a perforated sleeve to strengthen the plastic injection molding. ### Claim 13 (depends on 1) The clutch arrangement according to claim 1; wherein the shift fork made of plastic has a sheet metal reinforcement in the toothed area. ### Claim 14 (depends on 1) The clutch arrangement according to claim 1; wherein the one-way rotation and overload clutch arrangement has, as a clutch bushing, a sleeve with a metal cap with radial press fit which is fitted thereto and which has recesses. ### Claim 15 (depends on 13) The clutch arrangement according to claim 13; wherein the freewheel sleeve has a metal ring defining the circumferential dimension. ### Claim 16 (depends on 15) The clutch arrangement according to claim 15; wherein the metal ring is fashioned as a closed ring or is fashioned from curved strip material whose end faces engage in one another. ### Claim 17 (depends on 16) The clutch arrangement according to claim 16; wherein the ring is perforated.