EP4238196A1 - Pulley block for installation of overhead cables or wires and method of installation of cables or wires - Google Patents
Pulley block for installation of overhead cables or wires and method of installation of cables or wiresInfo
- Publication number
- EP4238196A1 EP4238196A1 EP21887001.2A EP21887001A EP4238196A1 EP 4238196 A1 EP4238196 A1 EP 4238196A1 EP 21887001 A EP21887001 A EP 21887001A EP 4238196 A1 EP4238196 A1 EP 4238196A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cable
- pulley block
- rollers
- closed position
- gate roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009434 installation Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000005452 bending Methods 0.000 description 6
- 239000004020 conductor Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
- H02G1/04—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables for mounting or stretching
Definitions
- rollers of the pulley block should be able to handle pulling of up to 6 km or more of cable through the pulley block by use of a pre-installed stringing wire.
- Fig. 4 shows schematically a front view of a pulley block according to an embodiment of the invention comprising a lock bolt with a locking mechanism and an adjusting bolt,
- Fig. 1a and 1b shows a front view and a side view, respectively, of a pulley block 10 according to an embodiment of the invention with the at least one gate roller 30 in closed position
- Fig. 2 shows a front view of a pulley block 10 according to an embodiment of the invention with the at least one gate roller 30 in open position.
- the pulley block 10 is suitable for being suspended or fastened above ground to a structure and may for this purpose be provided with a fastening arrangement 12.
- the invention is based on automatic closing of an entrance to a pulley block 10 in order to eliminate the need for manual assistance to install the cable or wire 60.
- a guide arm 40 for the helicopter, or other type of aircraft ensures that when the cable or wire 60 is laid onto the guide arm 40, the cable or wire 60 will move towards the entrance 51 and thus be guided into a channel 50 made up of rollers 20, 30 of the pulley block 10.
- the upper and lower horizontal rollers 20 should be rotatable about their respective longitudinal axis in order to ease pulling of the cable 60 through the enclosure 50 of the pulley block 10, however preferably also the vertical rollers 20 and/or the gate rollers 30, are rotatable.
Landscapes
- Electric Cable Installation (AREA)
- Installation Of Indoor Wiring (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO20201183A NO347761B1 (en) | 2020-10-29 | 2020-10-29 | Pulley block for installation of overhead cables or wires and method of installation of cables or wires |
| PCT/NO2021/050225 WO2022093038A1 (en) | 2020-10-29 | 2021-10-28 | Pulley block for installation of overhead cables or wires and method of installation of cables or wires |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4238196A1 true EP4238196A1 (en) | 2023-09-06 |
Family
ID=81383045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21887001.2A Pending EP4238196A1 (en) | 2020-10-29 | 2021-10-28 | Pulley block for installation of overhead cables or wires and method of installation of cables or wires |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4238196A1 (no) |
| NO (1) | NO347761B1 (no) |
| WO (1) | WO2022093038A1 (no) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4129287A (en) * | 1972-08-21 | 1978-12-12 | Lindsey Keith E | Stringing block assembly adapted to be threaded by helicopter |
| US4301994A (en) * | 1980-02-04 | 1981-11-24 | Lindsey Manufacturing Co. | Bundle conductor stringing block |
| JPS59117405A (ja) * | 1982-12-22 | 1984-07-06 | 中部電力株式会社 | 延線用吊金車 |
| KR100407547B1 (ko) * | 2001-06-02 | 2003-12-06 | 대원전기 주식회사 | 엘피애자용 전선 연선롤러 및 이를 이용한 전선 배선공법 |
| KR20040039701A (ko) * | 2002-11-04 | 2004-05-12 | 장근선 | 전기선로 교체용 전선가이드 롤러 |
| KR200381079Y1 (ko) * | 2005-01-12 | 2005-04-11 | 대원전기 주식회사 | 활선 개폐용 절연 연선 롤러 |
| KR101126669B1 (ko) * | 2011-10-05 | 2012-03-29 | 이재걸 | 직선부용 전선 가이드롤러 |
| KR101311453B1 (ko) * | 2013-06-20 | 2013-09-25 | (주) 창흥전력 | 가선용 활차 및 이를 이용하는 전선교체방법 |
| US20170229848A1 (en) * | 2017-04-20 | 2017-08-10 | Todd Barnhill | Wire guide assembly |
| KR102079472B1 (ko) * | 2019-06-14 | 2020-02-20 | 가나상공(주) | 활선 작업용 전선 홀더 및 이 홀더가 부착된 보조 완철 |
-
2020
- 2020-10-29 NO NO20201183A patent/NO347761B1/en unknown
-
2021
- 2021-10-28 EP EP21887001.2A patent/EP4238196A1/en active Pending
- 2021-10-28 WO PCT/NO2021/050225 patent/WO2022093038A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022093038A1 (en) | 2022-05-05 |
| NO20201183A1 (en) | 2022-05-02 |
| NO347761B1 (en) | 2024-03-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20230531 |
|
| AK | Designated contracting states |
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| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) |