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EP-4740281-A1 - A TRANSIT DEVICE AND METHOD AND USE OF SUCH A DEVICE

EP4740281A1EP 4740281 A1EP4740281 A1EP 4740281A1EP-4740281-A1

Abstract

A transit device (10) for leading one or more cables (24) or pipes through a partition, comprising a cylindrical, sealing body (11), a front fitting (13), a rear fitting (14) and fastening elements (15) going through holes (16) of the sealing body (11) in an axial direction (A) of the transit device (10) and connecting the front and rear fittings (13, 14), wherein the sealing body (11) comprises a plurality of sealing body elements (18) having a first end portion (19) and a second end portion (20) with a protrusion (21) and a recess (22) receiving the protrusion of an adjacent sealing body element, so that the sealing body elements overlap at corners (17) of a rectangular through opening (12) of the sealing body. Disclosed is also a method and a use of a transit device.

Inventors

  • OLSSON, PATRIK

Assignees

  • Roxtec AB

Dates

Publication Date
20260513
Application Date
20240627

Claims (15)

  1. 1. A transit device (10) for leading one or more cables (24) or pipes through a partition, comprising a cylindrical, compressible sealing body (11), at least one front fitting (13), at least one rear fitting (14) and a plurality of fastening elements (15) going through holes (16) of the sealing body (11) in an axial direction (A) of the transit device (10) and connecting the front and rear fittings (13, 14), wherein the sealing body (11) comprises a rectangular through opening (12), wherein the sealing body (2) comprises a plurality of sealing body elements (18) having a first end portion (19) and a second end portion (20), and wherein the first and second end portions comprise at least one protrusion (21) and at least one recess (22) receiving the protrusion of an adjacent sealing body element, so that the sealing body elements overlap at corners (17) of the rectangular through opening (12) in the axial direction (A) of the transit device (10).
  2. 2. The transit device of claim 1, wherein the protrusion (21) and recess (22) extend in a plane transversely with respect to the axial direction (A) of the transit device (10).
  3. 3. The transit device of any one of the preceding claims, wherein the compressible sealing body (11) comprises exactly four sealing body elements (18).
  4. 4. The transit device of any one of the preceding claims, wherein the sealing body elements (18) are identical.
  5. 5. The transit device of any one of the preceding claims, wherein each sealing body element (18) comprises an outer peripheral and substantially arc-shaped side (27) extending in a circumferential direction of the transit device (10).
  6. 6. The transit device of any one of the preceding claims, wherein each sealing body element (18) has a straight side (28) which forms a side of the rectangular through opening (12) of the sealing body (11).
  7. 7. The transit device of claim 6, wherein the straight side (28) is straight from the first end portion to the second end portion.
  8. 8. The transit device of claim 6 or 7, wherein the straight side (28) of each sealing body element (18) is formed with a plurality of flexible flanges (29), each extending in a plane perpendicular to the axial direction (A).
  9. 9. The transit device of claim 8, wherein said flanges (29) are inclined and/or tapered in the axial direction.
  10. 10. The transit device of any one of the preceding claims, wherein each sealing body element (18) has at least two of the through holes (16) for the fastening elements (15).
  11. 11. The transit device of any one of the preceding claims, wherein the sealing body elements (18) are asymmetric.
  12. 12. The transit device of any one of the preceding claims, wherein each sealing body element (18) comprises a plurality of sub-elements (18a-c) which are arranged in a plurality of layers (30, 30’).
  13. 13. The transit device of any one of the preceding claims, comprising four front fittings (13) and four rear fittings (14), wherein each fitting connects two adjacent sealing body elements (18) by means of the fastening elements (15).
  14. 14. Use of a transit device (10) for leading one or more cables (24) or pipes through a partition, the transit device comprising a cylindrical, compressible sealing body (11), at least one front fitting (13), at least one rear fitting (14) and a plurality of fastening elements (15) going through holes (16) of the sealing body (11) in an axial direction (A) of the transit device (10) and connecting the front and rear fittings (13, 14), wherein the sealing body (11) comprises a rectangular through opening (12), wherein the sealing body (11) comprises a plurality of sealing body elements (10) having a first end portion (19) and a second end portion (20) opposite to the first end portion (19), and wherein the first and second end portions comprise at least one protrusion (21) and at least one recess (22) receiving the protrusion of an adjacent sealing body element (18), so that the sealing body elements (18) overlap at the corners (17) of the rectangular through opening (12) in the axial direction (A) of the transit device (10).
  15. 15. A method for leading one or more cables (24) or pipes through a partition, comprising the steps of assembling a plurality of sealing body elements (18) having first and second ends (19, 20) with at least one recess (22) and at least one protrusion (21), so that the protrusion (21) of one sealing body element (18) is inserted into the recess (22) of an adjacent sealing body element, by means of the sealing body elements (18), forming a sealing body (11) having a rectangular through opening (12) with at least one cable or pipe arranged though said rectangular through opening, arranging a compressible sealing module (23) around the cable or pipe, arranging the sealing module (23) in the rectangular through opening (12), arranging a fastening element (15) through holes (16) in the sealing body (11) and by means of the fastening elements connecting at least one front fitting (13) and at least one rear fitting (14), by tightening of the fastening elements, compressing the sealing body (11) and thereby compress the sealing modules (23) around the cable (24) or pipe.

Description

A TRANSIT DEVICE AND METHOD AND USE OF SUCH A DEVICE Technical field The present invention concerns a transit device for leading one or more cables or pipes through a partition. More specifically, the present invention is related to such a transit device comprising a cylindrical, compressible sealing body, at least one front fitting, at least one rear fitting and a plurality of fastening elements going through holes of the sealing body in an axial direction of the transit device and connecting the front and rear fittings. The sealing body has a rectangular through opening for receiving one or more compressible sealing modules. The present invention is also related to a method for leading one or more cables or pipes through a partition. The present invention is also related to a use of such a device for leading one or more cables or pipes through a partition. Background Transit devices having a cylindrical compressible body, also called round seals, and being formed with a rectangular through opening are known in the prior art. Such transit devices are used when cables or pipes are to be lead through an opening in a partition, such as a wall, floor, ceiling, bulkhead, etc. The term cables as used herein includes wires. Transit devices of this kind are normally placed directly in an opening in the partition or in a sleeve received in the opening of the partition. Such transit devices are configured to receive one or more compressible sealing modules in the rectangular opening, which sealing modules in turn are adapted to receive the cable, pipe or wire. The transit devices have fittings at their opposite ends, which may be moved closer to each other to compress the sealing body. The compression is achieved by means of fastening elements, such as screws and nuts. Transit devices are used in many different environments, including cabinets, junction boxes, machines and similar, and for different industrial applications, such as for automotive and rolling stock applications, communication, power generation and distribution as well as marine and off-shore applications. Transit devices are often required to have a sealing function, e.g. sealing against different types of liquids, such as water, and/or gases, such as air, depending on the application. To provide a fastening and/or sealing function the cables or pipes are arranged in a through opening of a compressible sealing module. One common type of such a sealing module comprises two opposite module halves arranged around the cable or pipe, wherein the sealing modules are arranged in the sealing body arranged in the opening in the partition. Transit devices of this type of prior art have proven to work well in many circumstances. However, there is a need for an improved transit device when it comes to reliability, use and/or production. Summary An object of the present invention is to provide an improved transit device. One object of the present invention is to provide a transit device, which is more reliable and reduces the risk of leakage through the transit. Another object of the present invention is to provide a transit device, which is easy to use and facilitates installation. The present invention is related to a transit device for leading one or more cables or pipes through a partition, comprising a cylindrical, compressible sealing body, at least one front fitting, at least one rear fitting and a plurality of fastening elements going through holes of the sealing body in an axial direction of the transit device and connecting the front and rear fittings, wherein the sealing body comprises a rectangular through opening, wherein the sealing body comprises a plurality of sealing body elements having a first end portion and a second end portion, and wherein the first and second end portions comprise at least one protrusion and at least one recess receiving the protrusion of an adjacent sealing body element, so that the sealing body elements overlap at comers of the rectangular through opening in the axial direction of the transit device. The combination of the plurality of sealing body elements connected to each other and the overlap between them through the protrusions and recesses at the corners of the rectangular through opening results in a more reliable transit device, since the risk of leakage is reduced. It has been found that when compressing a cylindrical body having a rectangular central through opening, the comers of the through opening may be deformed and cause leakage. Hence, the rectangular through opening does not maintain straight perpendicular comers after deformation and/or after change in temperature and then no longer correspond to the outer surface of the sealing modules arranged in the rectangular through opening, which increases the risk of leakage from one side of seal to the other. The present invention results in sealing body elements that may be somewhat movable in relation to each other, which may compensate for the deformation