# US 7,744,374 B2 · Sliding contact retaining device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,744,374 B2 - Document ID: US7744374B2 - Status: Granted - Kind: B2 - Application number: 12/200,536 - Filed: 2008-08-28 - Published: 2010-03-04 - Granted: 2010-06-29 - Earliest claimed: 2008-08-27 - Assignees: Schunk Bahn-und Industrietechnik GmbH - Inventors: Peter Hoelscher; Bernd Becker; Peter Zilch - Web page: https://patentgrep.com/patent/US7744374B2 ## CPC - H01R 39/34: Connections of conductor to slip-ring - H01R 39/08: Slip-rings - H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS ## Abstract In a sliding contact retaining device for a contacting device of a rotor, the rotor can have a plurality of slip rings, wherein the contacting device serves to retain the sliding contact retaining device, and wherein an electrical contact can be established between the slip rings of the rotor and sliding contacts of the sliding contact retaining device, wherein using the sliding contact retaining device, sliding contact retainers can be disposed in a first and a second serial arrangement parallel to a rotational axis of the rotor, and wherein adjacently arranged slip rings can be contacted alternately from a sliding contact of the first serial arrangement and a sliding contact of the second serial arrangement, wherein the sliding contact retaining device has at least one holding device for receiving at least two serial arrangements of sliding contact retainers. ## Claims ### Claim 1 Sliding contact retaining device for a contacting device of a rotor, wherein the rotor has a plurality of slip rings, wherein the sliding contact retaining device is configured to be engaged with the contacting device, and wherein an electrical contact can be established between the slip rings of the rotor and sliding contacts of the sliding contact retaining device, wherein using the sliding contact retaining device, sliding contact retainers are disposed in a first and a second serial arrangement parallel to a rotational axis of the rotor, and wherein adjacently arranged slip rings can be contacted alternately from a sliding contact of the first serial arrangement and a sliding contact of the second serial arrangement, wherein the sliding contact retaining device comprises at least one holding device for receiving at least two serial arrangements of sliding contact retainers. ### Claim 2 (depends on 1) Sliding contact retaining device of claim 1, wherein the sliding contact retaining device includes at least two holding devices. ### Claim 3 (depends on 2) Sliding contact retaining device of claim 2, wherein the holding devices are arranged relative to one another at a radial angle β in relation to the rotational axis. ### Claim 4 (depends on 2) Sliding contact retaining device of claim 2, wherein each holding device forms a first and a second serial arrangement. ### Claim 5 (depends on 2) Sliding contact retaining device of claim 2, wherein each holding device forms two first or two second serial arrangements. ### Claim 6 (depends on 5) Sliding contact retaining device of claim 5, wherein at the holding device there is provided a joint supply connection for sliding contact retainers in contact with the same slip ring. ### Claim 7 (depends on 1) Sliding contact retaining device of claim 1, wherein the holding device is arranged in installation position above the rotational axis. ### Claim 8 (depends on 1) Sliding contact retaining device of claim 1, wherein the holding device is formed of a dielectric material. ### Claim 9 (depends on 1) Sliding contact retaining device of claim 1, wherein the holding device is formed in one piece. ### Claim 10 (depends on 1) Sliding contact retaining device of claim 1, wherein the holding device forms sliding contact retaining receptacles for receiving the sliding contact retainers. ### Claim 11 (depends on 10) Sliding contact retaining device of claim 10, wherein the sliding contact retaining receptacles of the holding device respectively comprise through holes. ### Claim 12 (depends on 10) Sliding contact retaining device of claim 10, wherein the sliding contact retaining receptacles of the holding device are formed such that a longitudinal axis of the sliding contact retaining receptacle intersects the rotational axis. ### Claim 13 (depends on 1) Sliding contact retaining device of claim 1, wherein the sliding contact retainers include a housing, which comprises a hollow profile. ### Claim 14 (depends on 13) Sliding contact retaining device of claim 13, wherein the housing is electrically conductive and that a connection is formed at the housing. ### Claim 15 (depends on 1) Sliding contact retaining device of claim 1, wherein the holding device comprises a fixing device for fixing the holding device at carrier elements of the contacting device. ### Claim 16 (depends on 15) Sliding contact retaining device of claim 15, wherein the fixing device forms axially extending grooves in a surface of the holding device, in which the carrier elements of the contacting device can be inserted. ### Claim 17 (depends on 15) Sliding contact retaining device of claim 15, wherein the fixing device forms fixing holes in the holding device, which permit a detachable fixing of the holding device at the carrier elements. ### Claim 18 (depends on 1) Sliding contact retaining device of claim 1, wherein the holding device comprises an adjusting device for adjusting an axial position of the sliding contacts relative to the slip rings. ### Claim 19 (depends on 1) Sliding contact retaining device according to claim 1, wherein the holding device comprises grooves, on a surface, that extend between sliding contact retainers.