# US 10,483,742 B2 · Cable/lead insertion unit > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,483,742 B2 - Document ID: US10483742B2 - Status: Granted - Kind: B2 - Application number: 15/572,027 - Filed: 2016-05-06 - Published: 2018-05-24 - Granted: 2019-11-19 - Earliest claimed: 2015-05-06 - Assignees: Eaton Intelligent Power Limited - Applicants: Eaton Protection Systems IP GmbH & Co. KG - Inventors: Reiner Naumann; Dieter Sauer - Web page: https://patentgrep.com/patent/US10483742B2 ## CPC - H02G 3/22: Installations of cables or lines through walls, floors or ceilings, e.g. into buildings - H02G 3/0616: {Joints for connecting tubing to casing} - H02G 3/088: {Dustproof, splashproof, drip-proof, waterproof, or flameproof casings or inlets} - H02G: INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES ## Abstract A cable/lead insertion unit for the insertion and passing-through of at least one lead into and through a wall opening of a housing wall. An insertion sleeve is used for insertion into the wall opening and a bearing flange at least in places protrudes therefrom radially outwards. Furthermore, a clamp part, in particular screwable onto the insertion sleeve in the direction of the bearing flange, is used, as well as a fastening portion of the insertion sleeve situated opposite the clamp part. The fastening portion on its outside has a partially circumferential thread turn, by which a clamping element can be brought into engagement for pressing the bearing flange onto a rim of the wall opening. ## Claims ### Claim 1 A cable/lead insertion unit for inserting and passing through at least one lead into and through a wall opening of a housing wall, comprising: an insertion sleeve for insertion into the wall opening, a bearing flange protruding radially outwards from the insertion sleeve, a clamp part configured to be screwed onto the insertion sleeve in the direction of the bearing flange, and a locking plate including a safety dog insertable into a locking opening in the housing wall, wherein the insertion sleeve includes a fastening portion situated opposite the clamp part, wherein the fastening portion comprises a single partially circumferential thread turn, by which a clamping element can be brought into engagement for pressing the bearing flange onto a rim of the wall opening, wherein the locking plate is configured to be fitted onto the insertion sleeve between the clamping element and the housing wall. ### Claim 2 (depends on 1) The cable/lead insertion unit as recited in claim 1, wherein the thread turn is formed from at least two thread turn sections. ### Claim 3 (depends on 2) The cable/lead insertion unit as recited in claim 2, wherein the thread turn sections are circumferentially spaced apart by circumference distances to define gaps between adjacent ones of the threaded turn sections. ### Claim 4 (depends on 3) The cable/lead insertion unit as recited in claim 3, further comprising the clamping element, wherein the clamping element is configured as a sleeve-shaped clamping element including at least two counter-thread turn sections which can be brought into engagement with the thread turn sections. ### Claim 5 (depends on 4) The cable/lead insertion unit as recited in claim 4, wherein the circumferential distances between the adjacent thread turn sections are greater than arcuate lengths of the counter-thread turn sections. ### Claim 6 (depends on 1) The cable/lead insertion unit as recited in claim 1, wherein the bearing flange comprises a sealing groove open in the direction of the rim of the opening. ### Claim 7 (depends on 1) The cable/lead insertion unit as recited in claim 1, wherein the clamp part is configured as a nut screwable onto the insertion sleeve. ### Claim 8 (depends on 7) The cable/lead insertion unit as recited in claim 7, wherein the nut is a cap nut, the cable/lead insertion unit further comprising a deformable lead sealing sleeve positionable in the cap nut. ### Claim 9 (depends on 8) The cable/lead insertion unit as recited in claim 8, wherein the lead sealing sleeve is configured to be in contact with an end face of the insertion sleeve when the lead sealing sleeve is positioned in the cap nut and the cap nut is screwed on the insertion sleeve. ### Claim 10 (depends on 1) The cable/lead insertion unit as recited in claim 1, further comprising a bolt flange protruding radially outwards from the insertion sleeve, wherein the bolt flange, the bearing flange and the insertion sleeve are configured as a single piece. ### Claim 11 (depends on 1) The cable/lead insertion unit as recited in claim 1, further comprising the clamping element, wherein the clamping element comprises a bearing edge for abutment at the rim of the wall opening, the bearing edge comprising at least one engagement section for engaging into the wall opening between the insertion sleeve and the rim of the wall opening. ### Claim 12 (depends on 1) The cable/lead insertion unit as recited in claim 1, wherein the cable/lead insertion unit is an Ex cable/lead insertion unit. ### Claim 13 (depends on 1) The cable/lead insertion unit as recited in claim 1, wherein the partially circumferential thread turn is configured to enable the clamping element to be brought into engagement for pressing the bearing flange onto a rim of the wall opening by rotating the clamping element less than about 360 degrees. ### Claim 14 (depends on 13) The cable/lead insertion unit as recited in claim 13, wherein the partially circumferential thread turn is configured to enable the clamping element to be brought into engagement for pressing the bearing flange onto a rim of the wall opening by rotating the clamping element within the inclusive range of about 30 degrees to about 90 degrees.