EP0190248A1 - Seilaufwickelvorrichtung. - Google Patents
Seilaufwickelvorrichtung.Info
- Publication number
- EP0190248A1 EP0190248A1 EP85903862A EP85903862A EP0190248A1 EP 0190248 A1 EP0190248 A1 EP 0190248A1 EP 85903862 A EP85903862 A EP 85903862A EP 85903862 A EP85903862 A EP 85903862A EP 0190248 A1 EP0190248 A1 EP 0190248A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cable
- drum
- grooves
- winding apparatus
- tail line
- 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.)
- Granted
Links
- 238000004804 winding Methods 0.000 title claims abstract description 16
- 239000000945 filler Substances 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000010338 mechanical breakdown Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/30—Rope, cable, or chain drums or barrels
Definitions
- This invention relates to cable winding apparatus.
- the apparatus is suitable for receiving and dispensing substantially any type of wire cable, electric lines, rope, cored and the like (hereinafter referred to collectively as "cable").
- Cable winding apparatus of various kinds is known and in common use. Such apparatus is used in the oil field industry, both offshore and land based, and also for general marine equipment. Other applications include crane, winch and vehicle-mounted systems.
- the apparatus according to the present invention is suitable for use in all of these fields. Particular attention has been directed to achieving some sort of control over the manner in which cables are wound upon drums or spools, particularly when the cable is frequently extended and under tension. Apparatus of this kind is described in GB-A 737352 and GB-A 776007.
- An object of the present invention is to avoid the disadvantages referred to above. This is achieved by attaching the innermost end of the cable to a tail line which is of smaller diameter than the cable and has a relatively low load bearing capacity.
- the main hoist rope or cable may thus be allowed to pass freely through the rigging system of the machine, followed by the attached secondary rope or tail line, which can ultimately be allowed to break free from the drum anchorage once sufficient cable and tail line have run through clear of the machine.
- the tail line controls the passage of the cable by maintaining a tension in the cable as it passes through the reeving system, and the tail line has a substantially lower breaking strength compared with the load bearing capacity of the machine upon which it is mounted. Thus, a snagged vessel or falling load attached to the free end of the cable cannot in turn pull the hoisting machine from its mounting.
- the small tail line can be utilised to feed the cable more easily through the rigging sheaves or reeving system of the machine upon which the drum is employed.
- the invention moreover simplifies the accommodation of the tail line or cable when wound on or off a drum arranged to accommodat e one or more layers of cable.
- the invention provides cable winding apparatus comprising a cylindrical drum, a cable adapted to be wound on or off said drum, and a tail line attached at one end to an end of the cable and at the other end to the drum and also adapted to be wound on or off the drum, the tail line having a lower load-bearing capacity than the cable and being adapted to snap under stress or to pull free from the drum having unwound to its full extent.
- the invention provides cable winding apparatus comprising a cylindrical drum adapted to hold a plurality of layers of cable wound thereon, the drum having circumferential primary grooves around at least part of its periphery for accommodating the innermost layer of cable such that said layer will unwind progressively from a first end of the drum to the opposite second end, characterised in that secondary grooves are formed in the base of the primary grooves, the secondary grooves being of smaller diameter than the primary grooves and adapted to accommodate a tail line attached to the innermost end of the cable but of correspondingly smaller diameter, whereby, after unwinding of the cable, the tail line will unwind progessively from the second end to the first end of the drum.
- the provision of the secondary grooves for the tail line, indicated above, is applicable for various designs of the circumferential primary grooves.
- two sets of diametrically opposed circumferential primary grooves are provided on the periphery of the drum and positioned parallel to the ends of the drum.
- the grooves of one set are disposed side-by-side but displaced relatively to the grooves of the other set.
- These two sets of main or primary grooves are each of a length less than half the circumference of the drum, thereby providing a pair of axially extending diametrically opposed cable control zones on the periphery of the drum.
- the secondary smaller grooves are formed in the base of the main grooves described above, the secondary grooves being formed in the opposite direction across the barrel width to that of the main grooves, i.e. if the main groove is righthand wound, then the secondary groove is lefthand wound, and vice versa. This relationship remains the same whether the drum is overwound or underwound with cable.
- the tail line groove runs from a starting position determined by the lenqth of tail line reauired following a path through the bottom of the primary groove but in opposing direction with crossover sections of the groove coinciding at two radially opposing areas around the drum.
- the secondary groove runs into the main groove at a predetermined position adjacent to one flange.
- grooves described above may be integrally applied onto the dr um core or barrel.
- the grooving may be applied to a plain barrel as an additional split wrapper, sometimes known as lagging or sleeve, around the main drum.
- Figure 1 is a side view of the drum of a cable winding apparatus according to a preferred embodiment of the invention
- Figure 2 is a developed sur face plan view of the apparatus shown in Figure 1 ;
- Figure 3 is a partial sectional view taken along the line 3-3 of Figure
- FIG 4 is an end view of the drum of Figure 1 .
- the drawings show a drum 1 having an arrangement of circumferential primary grooves 2 designed for controlled cable spooling.
- This arrangement of the primary grooves is known in itself and is described for example in GB-A 776007.
- the primary grooves are arranged in two diametrically opposed sets each parallel to the ends of the drum, but one set being displaced axially with respect to the other set by one half the width of the grooves.
- Each set of grooves is of a length less than half the circumference of the drum, so there is provided a pair of axially extending, diametrically opposed cable control zones 3 on the periphery of the drum.
- Such control zones may be plain, or as actually shown in the drawings may be provided with a set of helical grooves which communicate between the adjacent ends of the two main sets of grooves.
- end fillers 4 are provided a t both ends of the drum to guide the cable between the two sets of primary grooves, and hence obtain controlled spooling.
- the cable is shifted axially by a half pitch.
- the secondary grooves 5 there is formed in the base of the primary grooves the secondary grooves 5. These are of smaller diameter than the primary grooves, and correspond to the diameter of the tail line, which is correspondingly of smaller diameter than the cable.
- the grooving of the secondary grooves is of the opposite hand to that of the primary grooves. This is achieved by machining the secondary grooves so that they crossover the primary grooves in the region 3 of the two sets of helical grooves. Two sets of crossover points therefore coincide on diametrically opposite sides of the drum.
- the cable is joined to the tail line in the region where the secondary groove 5 commences, near the end of the cable starting end filler.
- the joints between the cable and the tail line is desirably as short as possible to minimise the unsupported length of the second layer of cable.
- the secondary groove 5 then passes, in opposite hand to the main groove, to the opposite end of the drum where the tail line passes through the drum barrel and is secured in known manner, alternatively at a point along the width of the barrel determined by the length of tail line required.
- the above arrangement is of assistance in winding the cable through associated reeving systems and onto the drum.
- the tail line is first passed through to the drum and is secured to the side of the drum near one end of the secondary groove.
- the drum can then be rotated and first the tail line and then the cable are wound onto the drum in controlled manner.
- the cable becomes snagged or attached to a runaway load
- the following safety features of the invention come into operation.
- the cable is allowed to run out freely through the reeving system and is maintained under tension because it is attached to the tail line.
- the tail line then in turn passes through the reeving until it is either completely unwound from the drum or snaps under stress, as it has a substantially lower breaking strength than the load bearing capacity of the drum and associated apparatus.
- the cable winding apparatus itself remains substantially undamaged.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
- Manufacturing Of Electric Cables (AREA)
- Insulated Conductors (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Manufacture Of Tobacco Products (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Peptides Or Proteins (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT85903862T ATE35805T1 (de) | 1984-08-06 | 1985-08-06 | Seilaufwickelvorrichtung. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08419964A GB2162811B (en) | 1984-08-06 | 1984-08-06 | Cable winding apparatus |
GB8419964 | 1984-08-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0190248A1 true EP0190248A1 (de) | 1986-08-13 |
EP0190248B1 EP0190248B1 (de) | 1988-07-20 |
Family
ID=10564975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85903862A Expired EP0190248B1 (de) | 1984-08-06 | 1985-08-06 | Seilaufwickelvorrichtung |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0190248B1 (de) |
AT (1) | ATE35805T1 (de) |
DE (1) | DE3563842D1 (de) |
DK (1) | DK153022C (de) |
FI (1) | FI79822C (de) |
GB (1) | GB2162811B (de) |
NO (1) | NO163482C (de) |
WO (1) | WO1986001189A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10132611A1 (de) | 2001-07-05 | 2003-01-30 | Rotzler Gmbh Co | Seiltrommel |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191511451A (en) * | 1915-08-09 | 1916-05-25 | William Varley Dewhurst | Improvements in or relating to Colliery and the like Winding Drums or Rollers. |
GB121357A (en) * | 1917-12-15 | 1918-12-16 | Jacob Stuart Sparkes | Improvements in or relating to the Attachment of Winding Ropes to their Drums or their Relative Adjustment thereto. |
FR1051618A (fr) * | 1952-02-12 | 1954-01-18 | Dispositif de sécurité pour systèmes de liaison par câbles | |
GB737352A (en) * | 1953-08-31 | 1955-09-21 | Franklin Leyburn Le Bus Sr | Cable spool winding |
GB776007A (en) * | 1954-09-30 | 1957-05-29 | George Franklin Le Bus Sr | Improvements in cable winding apparatus |
DE1174036B (de) * | 1963-02-08 | 1964-07-16 | Pohlig Heckel Bleichert | Schliessseil fuer einen Greifer |
US3809334A (en) * | 1972-11-06 | 1974-05-07 | United Aircraft Corp | Winch system for helicopter |
NL8300912A (nl) * | 1983-03-14 | 1984-10-01 | Philips Franciscus Maria | Samenstel van hijstrommel en hijskabel voor een hefinrichting. |
-
1984
- 1984-08-06 GB GB08419964A patent/GB2162811B/en not_active Expired
-
1985
- 1985-08-06 WO PCT/GB1985/000350 patent/WO1986001189A1/en active IP Right Grant
- 1985-08-06 AT AT85903862T patent/ATE35805T1/de not_active IP Right Cessation
- 1985-08-06 EP EP85903862A patent/EP0190248B1/de not_active Expired
- 1985-08-06 DE DE8585903862T patent/DE3563842D1/de not_active Expired
-
1986
- 1986-03-18 FI FI861116A patent/FI79822C/fi not_active IP Right Cessation
- 1986-04-04 NO NO86861327A patent/NO163482C/no unknown
- 1986-04-04 DK DK155786A patent/DK153022C/da not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO8601189A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE3563842D1 (en) | 1988-08-25 |
FI79822B (fi) | 1989-11-30 |
WO1986001189A1 (en) | 1986-02-27 |
FI861116A (fi) | 1986-03-18 |
NO861327L (no) | 1986-04-04 |
DK155786A (da) | 1986-04-04 |
NO163482B (no) | 1990-02-26 |
NO163482C (no) | 1990-06-06 |
FI861116A0 (fi) | 1986-03-18 |
GB2162811A (en) | 1986-02-12 |
FI79822C (fi) | 1990-03-12 |
EP0190248B1 (de) | 1988-07-20 |
DK153022C (da) | 1988-10-31 |
ATE35805T1 (de) | 1988-08-15 |
DK153022B (da) | 1988-06-06 |
GB8419964D0 (en) | 1984-09-12 |
GB2162811B (en) | 1987-10-14 |
DK155786D0 (da) | 1986-04-04 |
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