EP4268335A1 - Bouchon destiné à être fixé sur des conduites et d'autres éléments allongés - Google Patents

Bouchon destiné à être fixé sur des conduites et d'autres éléments allongés

Info

Publication number
EP4268335A1
EP4268335A1 EP21839006.0A EP21839006A EP4268335A1 EP 4268335 A1 EP4268335 A1 EP 4268335A1 EP 21839006 A EP21839006 A EP 21839006A EP 4268335 A1 EP4268335 A1 EP 4268335A1
Authority
EP
European Patent Office
Prior art keywords
section
cap
clamping
sleeve
wall
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
Application number
EP21839006.0A
Other languages
German (de)
English (en)
Inventor
Andreas Männel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP4268335A1 publication Critical patent/EP4268335A1/fr
Pending legal-status Critical Current

Links

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
    • H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
    • H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
    • H02G1/081—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using pulling means at cable ends, e.g. pulling eyes or anchors
    • 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
    • H02G15/00—Cable fittings
    • H02G15/02—Cable terminations
    • H02G15/04—Cable-end sealings
    • H02G15/043—Cable-end sealings with end caps, e.g. sleeve closed at one end

Definitions

  • the invention relates to a reusable cap, the end of one or simultaneously to several at least partially resilient to shear elongate elements such. B. cables, hoses or lines can be applied.
  • the invention relates in particular to a cap according to the preamble of claim 1, as is known from AT 009 471 U1.
  • Cables are laid in empty pipes, particularly in real estate construction, in corrugated pipes or corrugated hoses, which have a diameter that changes in a wavy manner and thus offer the necessary flexibility for curved laying.
  • the cable to be laid is inserted into an empty pipe, which usually connects two defined points with each other. Examples of these points can be junction boxes, sockets or light switches.
  • Laying cables is relatively easy with smooth-walled empty conduits that run in a straight line. If the empty pipe is curved, the degree of difficulty increases with the number of bends and the degree of curvature. Especially with corrugated pipes, there are considerable difficulties in laying the cables, since the imported The end of the cable tends to catch on bends and the undulating inner walls, preventing progress.
  • Document DE 10 2008 008 267 B4 discloses a solution for simultaneously threading in a plurality of lines in the body shell of a motor vehicle. This solution has the problem that only a first line is locked to the cap and secured against being pulled out. All other cables either have to be attached using additional tools, which leads to increased effort and additional material costs, or they have to be inserted into pre-defined receptacles for the respective cable size, which severely restricts the flexible use of the cap for different cable diameters and also results in a large number of variants entails high production costs.
  • the object of the present invention is to specify a preferably reusable cap for easier routing of cables, lines or other elongate elements through hoses or pipes, which is inexpensive to manufacture, easy to handle and reliable to use.
  • the cap according to the invention has a peripheral clamping edge which causes a significantly stronger connection between the ends of the elongate elements and the cap without the need for additional design measures such as the provision of a screw.
  • the free end or ends of the elongate elements are simply pushed through the opening of the sleeve-shaped section into the cavity and slide along the tapering inner wall in such a way that self-centering takes place. If the diameter of the elongate element is slightly larger than the smallest diameter of the clamping section, the elongate element will be held by the clamping edge when it is passed through the smallest diameter of the clamping section.
  • the elongate element is compressed by being inserted into the tapering clamping section.
  • the cross section of the elongate element widens again behind the clamping edge.
  • the cap thereby engages in a notch formed in the material of the elongate element, as a result of which the cap is connected to the elongate element not only in a force-fitting manner, but also to a certain extent in a form-fitting manner. This allows forces to be transmitted in both directions between the cap and the elongate member along the longitudinal axis of the elongate member.
  • the cap cannot be lost under normal circumstances.
  • the clamping imparted by the clamping edge is not so firm that the elongate element cannot be pulled out of the cap without the use of tools. It may be useful to widen the clamping section a little with your fingers.
  • the material of the cap should allow easy and inexpensive manufacture and smooth and low-friction outer surfaces. In this respect, plastics are particularly suitable.
  • the head section is preferably fully closed. However, it can also have small perforations such as holes or gaps, as long as these do not cause the cap to get caught on an edge when sliding along an empty pipe or similar.
  • the cap is preferably designed in one piece and can be produced very inexpensively, there is no economic damage worth mentioning if the cap cannot be removed easily.
  • the elongated element or bundle of elements is then simply cut to length just behind the cap.
  • the cap also provides the ability to simultaneously pick up and clamp on several elongated elements.
  • the overall diameter of the elongate elements laid against one another should then also ideally be larger than the smallest diameter of the clamping section. The more elastic the material of the cap, the larger the diameter range of the elongate elements on which the cap can be placed.
  • the outer cross section of the sleeve-shaped section is round or oval.
  • the cap can then be guided particularly easily through hoses, pipes or channels.
  • the cross section of the cavity is preferably also round or oval. This takes into account the fact that most of the elongated elements to be guided also have a round or oval cross section.
  • the cross section of the cavity is to be adapted to the cross section of the elongate elements. For example, if these have a square cross-section, the hollow space in the clamping section should also have a square cross-section in order to enable optimal guidance and clamping.
  • the inner wall in the clamping section has a plurality of grooves which are radially spaced apart from one another in the circumferential direction. Ribs remain between the grooves, which are wedge-shaped in the longitudinal direction, even if the grooves are wedge-shaped are. The ribs facilitate the insertion of the elongate elements without reducing the clamping forces from the clamping edge.
  • the inner wall in the clamping section has a circumferential groove which forms a further clamping edge.
  • the cap can be attached to elongate elements of different cross-sections.
  • a very wide diameter range of the elongate elements (or several elongate individual elements combined to form a bundle) can be covered with two or three such grooves.
  • Thinner cables can become lodged in the rear section of the clamping section, while thicker cables can lodge in the clamping section at an earlier stage. The larger the range of usable cable diameters should be, the longer and larger the cap should be.
  • Certain applications require a particularly strong attachment of the cap to the elongate element or bundle of elements.
  • the inner wall has protruding teeth, spikes or barbs in the clamping section. In addition to the clamping edge, these then engage in the circumference of the elongate element and thereby increase the holding forces.
  • a part of the inner wall provided with teeth, thorns or barbs is designed as a spring tongue, which is defined by two longitudinal slots in the sleeve-shaped section.
  • the spring tongue can give way so that the elongate element can be inserted up to the clamping edge.
  • the spring tongue can then be pressed externally with the fingers so that the teeth, spikes or barbs engage the periphery of the elongate element and hold it in the desired position.
  • This embodiment can also be used to advantage if the cap does not have a clamping edge.
  • the clamping section is rotatable about a longitudinal axis of the cap relative to an outside of the cap.
  • This design accounts for the fact that when the capped elongate members are passed through a hose, tube or duct, rotations about the longitudinal axis of the elongate members often occur. A cap firmly connected to the elongate elements follows these rotations, but experiences friction on its outside against the inner wall of the hose, tube or duct, which impedes passage. If, according to the invention, the outside is rotatable relative to the clamping section, the outside can be decoupled from rotations of the clamping section and the elongate element or elements attached thereto.
  • Such a cap has an elongate sleeve-shaped section and a head section adjoining it and rounded off at least from the outside.
  • the sleeve portion and the head portion have an inner wall defining a cavity that is open on a side opposite the head portion.
  • a fastening means such as a clamping edge or a grub screw, is arranged in the cavity, with which the cap can be fastened to the elongate member.
  • the fastener is rotatable relative to an exterior of the cap about a longitudinal axis of the cap.
  • a sleeve-like rotating body which forms at least part of the outside, is rotatably fastened to the head section and encloses the head section and at least part of the sleeve-shaped section.
  • the head section can then have, for example, an apron-like ring section which at least partially encloses the sleeve-shaped section and forms part of the outside of the cap.
  • the rotary body can be fastened to the supporting body by means of a snap connection with the aid of a connecting element located inside.
  • the support body can have a hole in the head section, for example, through which the connecting element can be inserted.
  • a chamfer at the rear open end of the cap makes it easier to pull the cable and cap backwards out of the conduit without getting caught.
  • Sleeves that run out in a straight line harbor the risk of snagging due to the resulting edge between the sleeve end and the cable. This problem is avoided by the mentioned chamfer.
  • the cap can be used to protect against direct contact with the current-carrying wires or to protect against harmful weather conditions.
  • luster terminals are very often mounted on cable ends hanging out on walls in order to protect people from electric shocks or to protect the open cable ends from weather influences such as moisture.
  • the outer cable sheath and the wire insulation of the individual wires do not have to be removed if a cap is used. There are also a number of manipulations that are no longer necessary, since the individual wires do not have to be covered. Instead, the cap is placed over the outer sheath of the cable, covering all of the cores in a single step.
  • FIG. 1 shows an axial cross section through a cap according to the invention according to a first embodiment
  • FIG. 2 shows an axial cross-section through a cap according to the invention according to a second embodiment, in which an inner wall in the clamping section is provided with longitudinally extending grooves;
  • Figure 3 is a plan view of the opening of the cap shown in Figure 2;
  • Figure 4 is a perspective view of the cap shown in Figures 2 and 3;
  • Fig. 5 is a perspective view from a different direction of that shown in Figs.
  • FIG. 6 shows a cap according to the invention according to a third exemplary embodiment in an axial cross section, in which circumferential grooves are incorporated in the clamping section;
  • FIG. 7 is a perspective view of the cap shown in FIG. 6;
  • FIG. 8 shows a cap according to the invention according to a fourth exemplary embodiment, in which spring tongues opposite one another are provided with radially projecting teeth;
  • Figure 9 is a plan view of the opening of the cap shown in Figure 8.
  • FIG. 10 shows an axial section through an inner part of a two-part cap according to the invention according to a fifth exemplary embodiment
  • FIG. 11 shows a rotary body for placement on the inner part in an axial section
  • Figure 12 shows the cap assembled from the parts shown in Figures 10 and 11;
  • FIG. 13 shows the inner part shown in FIG. 10 in a perspective view
  • FIG. 14 shows a cap according to the invention according to a sixth exemplary embodiment in an axial section, in which the inner part consists of two sleeve half-shells;
  • FIG. 15 is a plan view of the opening of the cap shown in FIG. 14.
  • FIG. 1 shows a first exemplary embodiment of a cap according to the invention, denoted overall by 10, and an end of a cable 12 inserted therein, in an axial cross section.
  • the cap 10 is designed in one piece as a plastic molding and has a sleeve-shaped section 14 and a head section 16 adjoining it. Both outer sides 18, 19 are smooth, i.e. they have no elevations or recesses.
  • the cap 10 encloses a cavity 20 which is delimited by an inner wall 22 .
  • the cable 12 is introduced into the cavity 20 via an opening 24 on the side opposite the head section 16 .
  • the cable 12 is single-core in the illustrated embodiment and includes a core 26 and a cable jacket 28 made of a soft plastic.
  • the inner wall 22 is not cylindrical but tapers conically towards the head section 16 .
  • This part of the inner wall 22 forms a clamping section 30 which extends from the opening 24 to a step 32 at which the diameter of the inner wall 22 suddenly increases.
  • the step 32 is formed in the manner of an undercut by an annular shoulder 34 extending in the radial direction.
  • a circular clamping edge 36 is formed at the abrupt transition between the inner wall 22 in the area of the clamping section 30 and the shoulder 34.
  • inner wall 22 transitions into a spherical section, as a result of which cavity 20 is given an overall mushroom-shaped geometry.
  • the cable jacket 28 When the cable 12 is inserted into the cavity 20, the cable jacket 28 is initially compressed by the conically tapering clamping section 30, as a result of which the cross section of the cable 12 is reduced. Because of the elastic property of the cable sheath 28, its cross section widens again behind the clamping edge 36. The clamping edge 36 engages in the notch formed in the cable jacket 28 and thus fastens the cap 10 in a non-positive and positive manner to the end of the cable 12.
  • the clamping connection can also withstand tensile forces acting in the axial direction, such as those that occur when the cable is maneuvered through an empty pipe or similar .typically arise.
  • the sleeve-shaped section 14 has a chamfer
  • FIG 2 shows a cap designated 110 according to a second exemplary embodiment in an axial section based on FIG that between the grooves 38 - remain ribs 40 - seen in the longitudinal direction wedge-shaped.
  • Figure 3 which shows the cap 110 in a plan view of the opening 24, the smallest diameter exposed by the ends of the ribs 40 is denoted by D.
  • Figures 4 and 5 show the cap 110 in perspective views from different directions.
  • the clamping edge 36 is not continuous in the circumferential direction, but is interrupted by the grooves 38.
  • the clamping edges 36 formed on the ribs 40 are delimited by corners which facilitate gripping the cable jacket 28 of the cable 12 .
  • the ribs 40 make it easier for the cable 12 to be inserted into the cap 110 without reducing the clamping forces.
  • Figures 6 and 7 show a third embodiment of a cap 210 according to the invention in representations based on Figures 2 and 4.
  • This embodiment differs from the cap 110 shown in Figures 2 to 5 in that the inner wall 22 in the region of the clamping section 30 additionally has two annular grooves 42a, 42b which are spaced apart from one another in the axial direction and run around in the circumferential direction.
  • the annular grooves 42a, 42b represent additional steps 34a, 34b on which clamping edges 36a and 36b are formed.
  • the clamping edges 36a, 36b lie on larger inner diameters than the clamping edge 36, which is formed by the front step 32.
  • the cap 210 can also be attached to ends of cables 12 that have a significantly larger diameter than the clamping edge 36.
  • a cable 12 with a large diameter is thus clamped at the clamping edges 36b, cables with a medium diameter at the clamping edges 36a and cables with small diameter fixed to the clamping edges 36.
  • FIGS. 8 and 9 show a cap, denoted overall by 310, according to a fourth exemplary embodiment, but not according to the invention, in representations based on FIGS. 4 and 3, respectively.
  • the cap 310 has two opposite pairs of longitudinal slots 44 which extend from the opening 24 to the end of the clamping section 30 .
  • the parts of the sleeve-shaped section 14 remaining between the adjacent longitudinal slots 44 form spring tongues 46a, 46b which, due to the elastic properties of the plastic used as the material, can be deflected inwards or outwards and then return to their original position shown in FIGS return position.
  • the inner wall 22 has a projecting tooth 48 which has a conical shape with a tip 50 in each case.
  • the diameter of the inner wall 22 does not taper in the area of the clamping section 30 .
  • Such a taper can be optionally provided as in the other embodiments, so that a deadlock both by a circumferential clamping edge (possibly interrupted by grooves) and by the teeth 48 projecting inwards from the spring tongues 46a, 46b.
  • FIGS. 10 to 13 schematically show the components of a two-part cap 410 in axial sections and a perspective view (FIG. 13).
  • the cap 410 has an inner part 52 shown in FIG. 10, which in the exemplary embodiment shown is constructed in exactly the same way as the cap 110 according to the exemplary embodiment shown in FIGS. The only difference is that the inner part 52 has an axially centered hole 54 in the area of the head section 16 .
  • FIG. 11 shows a sleeve-like rotating body 56 which is rotatably attached to the head section 16 of the inner part 52.
  • the rotating body 56 has two tongue-like snap-in elements 58 which are provided with barbs at the ends. If the rotary body 56 is placed on the inner part 52, the snap elements 58 are pressed together when inserted through the hole 54 and spring back into their starting position since the diameter of the hole 54 is smaller than the diameter of the barbs. This creates a snap-fit connection between the rotating body 56 and the inner part 52, which allows rotation between the two parts.
  • the two snap elements 58 and the hole 54 define an axis of rotation which coincides with the axis of symmetry and about which the rotary body 56 can be rotated relative to the inner part 52 .
  • the rotary body 56 completely encloses both the head section 16 and the sleeve-shaped section 14 of the inner part 52 . If a cable on which the cap 410 is attached is rotated about its longitudinal axis, such a rotation is decoupled from the rotating body 56 . The friction between the outside of the rotary body 56 and the empty tube or the like is reduced in this way.
  • FIG. 13 shows the inner part 52 in a representation based on FIG. 5, in which the hole 54 can be seen.
  • Figures 14 and 15 show a designated 510 cap according to a sixth embodiment, which functionally corresponds to the cap 410, but is constructed more simply.
  • the inner part 52 consists of the cap 510 only from the clamping portion 30, which consists of two sleeve half-shells 60a, 60b.
  • the sleeve half-shells 60a, 60b abut one another with play.
  • the axial cross-section of FIG. 14 shows that the sleeve half-shells 60a, 60b have a wall thickness that increases continuously starting from the opening 24.
  • the ends of the sleeve half-shells 60a, 60b remote from the opening 24 form the clamping edge 36.
  • a circumferential bead 62 is formed on the inside of the rotary body 56 in the region of a cylindrical section, which bulge engages in a corresponding circumferential recess 64 formed on the outer sides of the sleeve half-shells 60a, 60b.
  • the rotary body 56 When the rotary body 56 is pushed onto the sleeve half shells 60a, 60b placed on top of one another, the rotary body 56 expands somewhat so that the bead 62 can snap into the recesses 64. Since the diameter of the bead 62 is somewhat smaller than the diameter of the recesses 64, the sleeve half-shells 60a, 60b can rotate freely about the longitudinal axis relative to the rotary body 56.
  • the provision of the two sleeve half-shells 60a, 60b facilitates assembly on the rotating body 56. In principle, however, it is also possible to attach a single continuous sleeve to the rotating body 56, as shown in FIG. 14 for a two-part sleeve.

Landscapes

  • Clamps And Clips (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Details Of Indoor Wiring (AREA)

Abstract

L'invention concerne un bouchon (10 ; 110 ; 210 ; 410 ; 510) permettant d'assurer un guidage simplifié d'un ou plusieurs éléments allongés simultanément, en particulier des câbles (12), des tubes ou des conduites, qui peuvent être au moins partiellement poussés à travers un boyau, un tuyau ou un canal. Le bouchon a une section en forme de manchon allongée (14) et une section de tête fermée (16) qui est adjacente à la section en forme de manchon et qui est arrondie au moins depuis l'extérieur. La section en forme de manchon (14) et la section de tête (16) ont une paroi interne (22) qui délimite une cavité (20) qui est ouverte sur le côté opposé à la section de tête (16), et la cavité (20) a une section de serrage (30) dans laquelle la section transversale de la paroi interne (22) s'effile vers la section de tête (16). Selon l'invention, la section transversale de la cavité (20) se dilate progressivement à l'extrémité de la section de serrage (30) où la section de serrage a son diamètre le plus petit (D). De cette manière, un bord de serrage (36) est formé, qui s'étend dans la direction circonférentielle et sur lequel les éléments allongés (12) sont serrés lorsqu'ils sont poussés dans la cavité (20).
EP21839006.0A 2020-12-22 2021-12-07 Bouchon destiné à être fixé sur des conduites et d'autres éléments allongés Pending EP4268335A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020134636.0A DE102020134636B4 (de) 2020-12-22 2020-12-22 Kappe zur lösbaren Befestigung an Leitungen und anderen länglichen Elementen
PCT/EP2021/084651 WO2022135917A1 (fr) 2020-12-22 2021-12-07 Bouchon destiné à être fixé sur des conduites et d'autres éléments allongés

Publications (1)

Publication Number Publication Date
EP4268335A1 true EP4268335A1 (fr) 2023-11-01

Family

ID=75683470

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21839006.0A Pending EP4268335A1 (fr) 2020-12-22 2021-12-07 Bouchon destiné à être fixé sur des conduites et d'autres éléments allongés

Country Status (5)

Country Link
US (1) US20240063625A1 (fr)
EP (1) EP4268335A1 (fr)
CN (1) CN116569432A (fr)
DE (1) DE102020134636B4 (fr)
WO (1) WO2022135917A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202022101102U1 (de) 2022-02-28 2023-06-05 WAGO Verwaltungsgesellschaft mit beschränkter Haftung Leiterendkappe

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3624514A1 (de) 1986-07-19 1988-01-28 Rose Walter Gmbh & Co Kg Vorrichtung zur zugfesten verkappung von kabeln
US4751350A (en) * 1986-11-06 1988-06-14 Raychem Corporation Sealing device and retention member therefor
DE3712257A1 (de) 1987-04-10 1988-10-27 Roland Wolf Kabelverschlusstec Zuganker fuer kabel
DE8812643U1 (fr) 1988-10-08 1989-02-09 Wolf, Roland, 7000 Stuttgart, De
DE3911688A1 (de) 1989-04-10 1990-10-11 Sichert Gmbh & Co Berthold Kabelende-abschliessvorrichtung
DE4142096A1 (de) 1991-08-28 1993-07-01 Cellpack Ag Kabel-endabschlussdichtung
DE4225568A1 (de) 1992-08-03 1994-02-10 Huber+Suhner Ag Kabelendkappe
AT403638B (de) 1996-09-03 1998-04-27 Sima Harald Ing Anordnung zum einbringen von kabeln und/oder leitungen in ein installationsrohr
DE10040693C2 (de) 2000-08-19 2002-11-28 Katimex Cielker Gmbh Vorrichtung zur Führung eines bedingt auf Schub belastbaren Elementes
DE10106068B4 (de) 2001-02-09 2010-05-27 Elmar Pfister Koaxialkabel mit Vorrichtung zum Einführen in Kabelkanäle oder Schläuche oder Rohre
JP2002362257A (ja) 2001-06-01 2002-12-18 Sumitomo Wiring Syst Ltd ワイヤハーネス用の保護カバー
JP4436198B2 (ja) 2004-07-09 2010-03-24 矢崎総業株式会社 電線保護キャップ
AT9471U1 (de) 2006-10-30 2007-10-15 Peter Haselberger Anbaukopf oder hülse für elektro- oder drahtkabel bei installationen
DE102008008267B4 (de) 2008-02-08 2010-07-01 Volkswagen Ag Schutzkappe, Montageanordnung und Verfahren für die Montage von Leitungen im Rohbau eines Kraftfahrzeugs
CH706347A2 (fr) * 2012-04-11 2013-10-15 Robotic Consulting S A R L Dispositif pour améliorer l'accrochage de fils, notamment électriques, pour faciliter leur tirage dans des conduits.

Also Published As

Publication number Publication date
US20240063625A1 (en) 2024-02-22
WO2022135917A1 (fr) 2022-06-30
DE102020134636B4 (de) 2021-11-11
DE102020134636A1 (de) 2021-05-20
CN116569432A (zh) 2023-08-08

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