WO1992018789A1 - Element d'interconnexion - Google Patents

Element d'interconnexion Download PDF

Info

Publication number
WO1992018789A1
WO1992018789A1 PCT/DK1992/000129 DK9200129W WO9218789A1 WO 1992018789 A1 WO1992018789 A1 WO 1992018789A1 DK 9200129 W DK9200129 W DK 9200129W WO 9218789 A1 WO9218789 A1 WO 9218789A1
Authority
WO
WIPO (PCT)
Prior art keywords
interconnector
rod
central part
shaped
shaped central
Prior art date
Application number
PCT/DK1992/000129
Other languages
English (en)
Inventor
Kjartan Ragnarsson
Original Assignee
Broedrene Markussens Metalvarefabrik A/S
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Broedrene Markussens Metalvarefabrik A/S filed Critical Broedrene Markussens Metalvarefabrik A/S
Publication of WO1992018789A1 publication Critical patent/WO1992018789A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G15/00—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes
    • F16G15/02—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes for fastening more or less permanently

Definitions

  • the present invention relates to an interconnector intended for releas- able connection with at least one elongated opening, preferably in an elongated chain link, and which has a rod-shaped central part which at least at one end has an enlarged T-shaped part.
  • the invention relates to an interconnector which, among other things, is intended for replacing shackles and the like.
  • An interconnector is primarily believed to be used as a chain interconnector. Because of its special form, an interconnector according to the present invention will, however, be used in connection with any element that is supplied with an elongated or oblong opening, e.g. a free inner opening in an elongated chain link, and in which the side edges of the opening are limited by an edge area having a limited wall thickness.
  • an elongated opening provided in a chain link.
  • the opening of the fishing equipment should be as large as possible in order to accomplish the best pos ⁇ sible catch. After the catch has gone into the trawl or the net. the opening will be strongly loaded and is therefore provided with a spe ⁇ cial carrier cable or fishing line.
  • the fishing line is totally or partially made of a chain which is fastened to the bottom sides of a trailing equipment which drags the fishing equipment over the bottom.
  • the fishing line is fastened to the long sides of the trailing equip ⁇ ment by means of chains which are fastened by locking shackles or by special connectors.
  • Such connectors are normally provided by two halves. Due to the strong loads occuring, the two halves will often be deformed in such a way, that they only with difficulties may be sepa- rated. At replacement, the use of special expulsive tools, anvil, ham ⁇ mers and any cutting pipes is demanded.
  • an interconnector of the type mentioned by way of introduction being characterized in that the rod-shaped central part has a quadrilateral cross section, the side length of which is shorter than the distance between the side edges of the associated opening and in which the diagonals between opposite corners are longer than said distance between the side edges of the associated opening, that the two end parts of the interconnec- tor have a cross section being larger than that of the rod-shaped cen ⁇ tral part, and of which end parts said, at least one enlarged T-shaped end part has a rectangular cross section in which the short side length is shorter than said distance between the side edges of the associated opening, and in which the longest side length is longer than this distance, but still shorter than the distance between the end edges of the opening, and that the rod-shaped central part, on at least one and preferably two opposite corners, is provided with ar, incision having such a depth, that a diagonal between the incision anc the opposite corner, or the opposite incision is short ⁇ * - tna- saic
  • the rod-shaped central part of the interconnector has side lengths which are adapted to dimensions on an actual oblong opening, e.g. a free inner opening in an elongated chain link, with which the inter ⁇ connector cooperates.
  • both end parts are made with an identical, enlarged T-shaped end part, both of these will be able to pass through the oblong opening when a T-shaped end part is orientated with the largest side length directed along the longitudinal direction of the opening.
  • This intro ⁇ duction of the interconnector can be effected quickly and safely.
  • the interconnector is rotated 90° and is pulled back.
  • the underside of the T-shaped end part will abut the side edges of the opening.
  • an interconnec ⁇ tor can be provided with a locking split which is inserted after an interconnector is placed with the enlarged part abutting the side edges of the opening.
  • the interconnector according to the invention may either be produced by cutting out a plate or by forging. In combi ⁇ nation with the oblong form, this will cause the interconnector to be able to withstand strong loads without risk of breakage.
  • the interconnector comprises at least one T-shaped end part for connection with an associated connection ope- ning, e.g. formed by a quadrilateral, oblong or a semicircular opening in a chain link.
  • the other end of the interconnector may have any form, however, said other end part shall also present such a cross section that the interconnector may not unintentionally pass through the opening.
  • the other end of the interconnector may be produced with varying forms, depending on whether the equipment to be fastened is permanently connected to the interconnector or releasable connected to the interconnector.
  • An interconnector can also be pliable in order to provide for a flexible connection.
  • An interconnector of the type mentioned above is very simple to use and may be combined as a single-acting or a poly-acting interconnec ⁇ tor.
  • interconnectors in fishing equipment shall withstand great for ⁇ ces and wear, and accordingly, they will be produced from hard-wearing metals or alloys, e.g. by cutting out plates.
  • an interconnector may be produced by welding several elements together.
  • the interconnector has been described as having a rod-shaped central part which connects two end parts. It is noted that the rod-shaped central part does not necessarily need to be rectilinear. Depending on the intended use, the rod-shaped central part may be provided with any bending or double-bending. Thus, the rod-shaped part may be V-shaped, S-shaped or U-shaped.
  • Figs. 1-3 show three side views of a first embodiment fcr ar interco*--- nector according to the invention
  • Figs. 4-5 show two side views of a second embodiment for an intercon ⁇ nector according to the invention
  • Fig. 6 shows a side view of a variant of the second embodiment of the interconnector, shown in Figs. 4 and 5,
  • Figs. 7-8 show two side views of a third embodiment for an intercon ⁇ nector according to the invention
  • Figs. 9-11 show three side views of a fourth embodiment for an inter ⁇ connector according to the invention
  • Figs. 12-14 show three side views of a fifth embodiment for an inter ⁇ connector according to the invention
  • Fig. 15 shows a side view of a sixth embodiment for an interconnec ⁇ tor according to the invention
  • Fig. 16 shows a side view of a seventh embodiment for an intercon- nector according to the invention
  • Fig. 17 shows a sectional view according to line XVII-XVII in Fig.
  • Fig. 18 shows a side view of an eighth embodiment for an intercon ⁇ nector according to the invention
  • Fig. 19 shows a side view of a ninth embodiment for an interconnec ⁇ tor according to the invention.
  • the drawing illustrates different embodiments for an interconnector according to the invention.
  • the different embodiments are denoted by reference numerals 1-7 and 47-48.
  • the interconnector 1 has a rod-shaped central part 8 which at each end is provided with an enlarged part 9, respectively 10.
  • the enlarged part 9 at the one end shows a substantially T- shaped cross section.
  • T-shaped means any form which has a cross section, which presents edges 25 projecting from two opposite side faces 11 on the rod-shaped central part 8.
  • the T-shaped part can be circular, as illustrated in Fig. 1, ellipse- shaped, rod-shaped or formed by any other form.
  • the T-shaped end part 9 is intended for cooperating with an opening 12 which may be provided in any way, e.g. as a free opening in a chain link.
  • An edge area 13 of the opening 12 is illustrated in Figs. 1-3. It is noted that an outer boundary of the edge area 13 can be placed in any arbitrary distance from the opening 12.
  • the opening 12 will be defined as a free opening which is provi ⁇ ded in a link, which at the one end or at each end is connected with another chain link.
  • the opening 12 is elongated and has a long side edge 14 and a short side edge 15. At least in a central area 16, the T-shaped end part 9 has a rectangular cross section with a short side length 17 that is shorter than the distance 15' between the side edges 14 of the associ ⁇ ated opening 12.
  • the long side length 18 of the rectangular cross sec ⁇ tion is longer than the distance 15' between the side edges 14, but shorter than the distance 14' between the side edges 15 of the ope ⁇ ning.
  • the rod-shaped central part 8 has a cross section, in which the lengths 19 and 20 of the side egdes may be identical or different, but the lengths 19,20 of both side edges will always be a little shorter than the distance 15 ' between the side edges 14 of the associated ope- ning.
  • a diagonal 21 between opposite corners 22 is longer than the distance 15 ' between the side edges 14 of the opening.
  • the rod-shaped central part 8 is provided with two incisions 23 at opposite corners 22.
  • the incisions 23 have such a depth, that a diagonal 24 between the incisions 23 is less than the distance 15' between the side edges 14 of the associated opening 12.
  • the T-shaped end part 9 may be moved through the opening 12 and then the rod-shaped central part 8 is displaced through the opening 12 until the incisions 23 are positioned opposite the side edges 14. Subsequently, the interconnector may be rotated 9C C and then be pulled back until the edges 25 on the underside c ⁇ ⁇ tn. T-shaped end part 9 abut the side edges 14. Hereby, the interconnector is secured in the opening 12.
  • the interconnector is optional ⁇ ly provided with a bore 26, in which a lock split 27 may be inserted, which is projecting from the side face 11 of the interconnector.
  • the lock split 27 is shown inserted in Figs. 1 and 2.
  • the lock split 27 can be of any known type, however, it will preferably be a resilient lock split.
  • a simple elastic rubber ring (not shown) may be used, which after the mounting of the interconnector in the opening 12 is dis ⁇ placed to a position between the incisions 23 and the opening 12.
  • the T-shaped end part 9 appears in all embodiments.
  • the other end part 10 shown in Figs. 1-3 consists of a ring 28 having a central opening 29 which makes passage of chains, wires and the like possible, which by means of the interconnector 1 is desired to connect with another element, e.g. an additional chain.
  • the end part 10 has a cross section, which at least has the same size as the cross section of the T-shaped end part 9.
  • the end part 10 or the corresponding end part in subsequent embodiments will never be able to pass through the opening 12 when the interconnector is rotated to its connected posi ⁇ tion.
  • the interconnector 2 illustrated in Figs. 4 and 5, is rectilinear.
  • Fig. 6 shows an alternative form 2 ' for the embodiment shown in Figs. 4 and 5.
  • the end parts are angled in relation to the rod-shaped central part 8 so that the interconnector appears S-shaped.
  • the embodiment for the interconnector 2 and 2 ' is also called an intermediate interconnector.
  • the intermediate interconnector is produced with two identical T-shaped end parts 9 both being intended for connection with a connection opening 12.
  • F * or instance, the intermediate interconnector may be used for mutual con- nection of two chain ends, in which chain links consist of elongated chain links, which comprise a connection opening 12.
  • the third embodiment for an interconnector 3, shown in Figs. 7 and 8, comprises a T-shaped end part 9.
  • an eye 30 is formed in the form of a cut up chain link or a length of round steel bar 31 which is welded to the rod-shaped central part 8.
  • the eye 30 is connected to a length of chain 32 which at the other end is connected with an enlarged chain link 33, in which a pipe 34 is arranged.
  • a stop flange 35 is provided, which prevents the pipe 34 from sliding out of the enlarged chain link 33.
  • an eye 30 can be used for fastening a snap hook which can assure a quick disconnection of an element which otherwise would pass through the interior 36 of the pipe 34.
  • an element could be a wire, a pipe, a cable, a chain or another elon ⁇ gated element.
  • the fourth embodiment for the interconnector 4 is shown, in which the end part 37 opposite the T-shaped end part 9 is cranked compared to the rod-shaped central part 8.
  • the end part 37 is constituted by an enlarged part 38 which substantially has same cross section as the T-shaped part 9.
  • the enlarged part 38 is connected with the rod-shaped part 8 via an inter ⁇ mediate part 39 having a cross section substantially equivalent to the cross section of the rod-shaped central part 8, which means that the opening 12 can be arranged around the intermediate part 39.
  • the inter- connector 4 is especially suitable for connecting a chain being sus ⁇ pended perpendicul r to another chain.
  • the fifth embodiment for the interconnector 5, illustrated in Figs. 12-14, differs only from the embodiment shown in Figs. 4 and 5 in that the two identical T-shaped end parts 9 are orientated perpendicular to each other.
  • the interconnector 5 may be used to connect two chains crossing each other.
  • the sixth embodiment for the interconnecto * - 6 ii snowr. The interconnector 6 has two identical T-shaped end parts 9 which are connected to each respective half 40 by the rod-shaped central part. Each half 40 is provided with incisions 23 for mounting in the connec ⁇ tion opening 12.
  • the two halves 40 are mutually connected by means of a hinged joint 41.
  • the hinged joint 41 is formed by two welded pieces of round steel bar which form eyes 43, through which a chain link 44 is placed.
  • the interconnector will be flexible, as it was the case with the interconnector illustrated in Figs. 7 and 8.
  • the interconnector 7 illustrated in Fig. 16 comprises a T-shaped end part 9. At the side of the rod-shaped central part 8 facing away from the T-shaped end part 9, a cross bar 45 is fastened. Two additional interconnectors 46 are connected to the cross bar. In the embodiment illustrated, the additional interconnectors 46 are shown as being identical and comprising a T-shaped end part 9. However, the addi ⁇ tional interconnectors 46 can be formed by any desired elements and in any desired number. Thus, they may consist of rings, chain links, snap hooks or the like. With this embodiment, it will be possible to connect several elements to one element which is connected with an upwardly orientated T-shaped end part 9. Thus, the interconnector 7 may be used by a Y-shaped connection between a main chain and two side chains.
  • the interconnector 47 illustrated in Fig. 18 comprises a T-shaped end part 9. At the opposite end of the rod-shaped central part 8, a ring 28 is fastened, corresponding to the ring illustrated in Fig. 1.
  • a spring 49 is arranged around the rod-shaped central part 8. At one end, the spring 49 abuts the ring 28, and at the other end, the spring abuts a cup-shaped flange 50.
  • the flange 50 consists of a circular disc 51 and an annular part 52 mounted thereon, and which supports the outside of the spring 49.
  • the circular disc 51 is provided with a central quadrilateral hole corresponding to the cross section of the rod-shaped central part 8.
  • a chain link should overcome the power exerted by the spring 49 in order to be aligned with the incisions 23.
  • the incision: are arranged relatively near the enlarged part 9. This position will relieve the mounting of the interconnector 47 in a chain link or ano ⁇ ther opening, seeing that the spring 49 does not necessarily need to be completely compressed.
  • a better abutment is obtained against the other enlarged end part 10 which does not necessarily need to be provided as a ring 28.
  • the use of two cup-shaped flanges 50 will be suitable for use in an interconnector comprising two identical end parts 9.
  • a spring 49 may be used in any of the embodiments shown in order to reduce the risk of an unintentional alignment of the incisions 23 at the side edges of an associated opening.
  • the interconnectors 1-7 and 47-48 shown and described have a wide area of use. However, they have an important use in fishing equipment, espe- cially when manufacturing fishing trawl and larger drag nets. With fishing equipment it is often necessary to establish a mutual connec ⁇ tion between several chains or chains and wires. In certain situations it is desirable that two chains are mutually displaceable, which for example is possible when using the interconnectors 1 and 3 in which chains may be displaced through the openings 29 and 36.
  • the invention is not limited to fishing equipment and use in connection with chains.
  • Interconnectors according to the invention will also be suitable for use in installations where service cables and pipes are suspended in houses, on ships and other places.
  • the interconnector has a simple form and may easily be produced in many varying sizes and of varying materials, adapted to the intended use.

Abstract

Un élément d'interconnexion (1) pouvant être introduit rapidement, facilement et de manière libérable dans tout ouverture allongée (12), comprend une partie centrale en forme de tige (8) et à chaque extrémité une partie agrandie (9, 10). La partie centrale en forme de tige (8) présente une section transversale qui interdit sa rotation dans l'ouverture allongée (12). Les dimensions des parties d'extrémité agrandies (9, 10) sont telles qu'elles n'autorisent la traversée de l'ouverture allongée (12) que lorsque la partie d'extrémité agrandie (9) possède une dimension plus longue (18) et est orientée le long d'un long bord latéral (14) de l'ouverture (12). Une entaille (23) est prévue à deux angles opposés de la partie centrale en forme de tige (8), ladite entaille permettant la rotation du connecteur (1) lorsque les entailles (23) s'adaptent dans l'ouverture (12). Cette condition est remplie lorsque la distance (24) entre les entailles (23) est inférieure à la distance la plus courte (15') entre les bords latéraux (14) de l'ouverture associée (12). Le connecteur est particulièrement apte à une utilisation avec les chaînes, par exemple dans l'industrie de la pêche.
PCT/DK1992/000129 1991-04-18 1992-04-15 Element d'interconnexion WO1992018789A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IS3695A IS3695A7 (is) 1991-04-18 1991-04-18 Fiskilínutengi
IS3695 1991-04-18

Publications (1)

Publication Number Publication Date
WO1992018789A1 true WO1992018789A1 (fr) 1992-10-29

Family

ID=36754765

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK1992/000129 WO1992018789A1 (fr) 1991-04-18 1992-04-15 Element d'interconnexion

Country Status (3)

Country Link
AU (1) AU1682692A (fr)
IS (1) IS3695A7 (fr)
WO (1) WO1992018789A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2995889A (en) * 1958-09-19 1961-08-15 Johnson Grady Key pin for connecting link chains
US3374620A (en) * 1967-06-05 1968-03-26 Roger L. Gower S-shaped connector device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2995889A (en) * 1958-09-19 1961-08-15 Johnson Grady Key pin for connecting link chains
US3374620A (en) * 1967-06-05 1968-03-26 Roger L. Gower S-shaped connector device

Also Published As

Publication number Publication date
AU1682692A (en) 1992-11-17
IS3695A7 (is) 1991-10-24

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