WO1991015700A1 - Device for holding cables, pipes, hoses or the like - Google Patents

Device for holding cables, pipes, hoses or the like Download PDF

Info

Publication number
WO1991015700A1
WO1991015700A1 PCT/EP1991/000238 EP9100238W WO9115700A1 WO 1991015700 A1 WO1991015700 A1 WO 1991015700A1 EP 9100238 W EP9100238 W EP 9100238W WO 9115700 A1 WO9115700 A1 WO 9115700A1
Authority
WO
WIPO (PCT)
Prior art keywords
clamping tongues
pressure screw
cable
screw
seal
Prior art date
Application number
PCT/EP1991/000238
Other languages
German (de)
French (fr)
Inventor
Udo Studenski
Original Assignee
U.I. Lapp Gmbh & Co. Kg
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 U.I. Lapp Gmbh & Co. Kg filed Critical U.I. Lapp Gmbh & Co. Kg
Publication of WO1991015700A1 publication Critical patent/WO1991015700A1/en

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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
    • F16L5/02—Sealing
    • F16L5/06—Sealing by means of a swivel nut compressing a ring or sleeve
    • 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
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
    • H02G3/0616—Joints for connecting tubing to casing
    • H02G3/0625—Joints for connecting tubing to casing with means for preventing disengagement of conductors
    • H02G3/0658—Joints for connecting tubing to casing with means for preventing disengagement of conductors with means constricting the conductor-insulation
    • 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
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
    • H02G3/0616—Joints for connecting tubing to casing
    • H02G3/0625—Joints for connecting tubing to casing with means for preventing disengagement of conductors
    • H02G3/0675—Joints for connecting tubing to casing with means for preventing disengagement of conductors with bolts operating in a direction parallel to the conductors

Definitions

  • the invention relates to a device for holding cables, lines, hoses or the like with a hollow cylindrical mounting piece for the passage of the cable or the like and with a pressure screw which can be screwed onto the mounting piece and has an arched inner surface, the pressure screw on the mounting piece Clamping tongues are arranged on the facing side, and an elastic seal is arranged within the clamping tongues, and the clamping tongues lying on the curved inner surface of the pressure screw can be pressed together by screwing the pressure screw onto the assembly connection piece, and thereby the seal on the cable or the ⁇ same can be pressed.
  • the inner surface of the pressure screw is conical or spherical, that is to say circularly curved in a radial cross-sectional view, so that the clamping tongues are evenly pressed together when the pressure screw is screwed onto the assembly connection piece.
  • the conically or spherically curved inner surface of the pressure screw is provided with a grooving, toothing or the like, which comes into engagement with the clamping tongues and acts as a rotation lock for the pressure screw. Due to the conical-spherical design of the pressure screw inner surface and the associated uniform Compression of the clamping tongues may mean that the pressure to be exerted on the cable does not reach the height required to prevent rotation.
  • the object is achieved in that the inner surface of the pressure screw is oval in a radial cross-sectional view and as a result the clamping tongues can be pressed together unevenly.
  • Figure 1 is a front view of a Montagestut ⁇ zens
  • FIG. 2 shows a partially sectioned side view of the assembly socket from FIG. 1;
  • FIG. 3 shows a front view of a pressure screw
  • FIG. 4 shows a partially sectioned side view of the pressure screw in the direction of arrow A from FIG. 3; 5 shows a partially sectioned side view of the pressure screw in the direction of arrow B from FIG. 3 and
  • FIGS. 1 to 5 shows a sectional view of the assembled parts from FIGS. 1 to 5.
  • a hollow cylindrical mounting stub 1 shown in FIGS. 1 and 2 consists of tough elastic plastic, in particular polyamide.
  • the socket 1 has on its left side in FIG. 2 an outer connecting thread 2 and one for mounting on the wall . 14 of a housing or the like (see FIG. 6) required pressure collar 3 in the form of a hexagon.
  • An external thread 4 adjoins the collar 3 for applying a pressure screw 9 (FIGS. 3, 4 and 5).
  • a plurality of clamping tongues 6 are integrally and coaxially formed on the mounting piece 1, which extend up to the external thread 4 and are separated from one another by obliquely running slots 5.
  • the clamping tongues 6 and the slots 5 follow one another alternately and together form a tension collar 7, into which a hollow cylindrical seal 8 made of elastic material is inserted coaxially.
  • the mounting socket 1 has an undercut at the attachment point of the terminals 6, in which the seal 8 engages in a form-fitting manner. As a result, and through the clamping tongues 6, the seal 8 is held captive.
  • the cap nut-shaped pressure screw 9 shown in FIGS. 3 and 4 comprises an attack by a wrench Serving hexagon 10 and an internal thread 11, with which the pressure screw 9 can be screwed onto the external thread 4 of the mounting piece 1.
  • the inner surface 15 of the pressure screw 9 facing away from the Secbiskant 10 is curved or frustoconical and cooperates with the free ends of the clamping tongues 6, as will be described in the following.
  • FIG. 6 shows the hollow-cylindrical assembly connector 1 as it is fastened to the wall 14 of a housing by means of the connecting thread 2, wherein it is supported on the wall with the pressure collar 3 and is secured with a lock nut 17.
  • this socket 1 and the screw 9 are connected to one another in such a way that the clamping tongues 6 are supported on the inclined or curved inner surface 15 of the pressure screw 9 forming a support bearing and when screwing on the pressure screw 9, gradually move it in a fan shape towards the central axis of the cable gland.
  • the inner surface 15 of the pressure screw 9 is not spherical (spherical), but rather is curved in a cross-sectional view that deviates from the circular shape, in particular oval or elliptical, with the expression “curvature” also a frustoconical formation of the inner surface 15 should fall.
  • the oval 18 deviating from the circular shape can be clearly seen in FIG. 3. This oval shape means that in FIG. 4 the wall thickness of the pressure screw 9 increases in the area of the inner surface 15 than in Figure 5.
  • the oval curvature of the inner surface 15 leads to the fact that when the pressure screw 9 is screwed onto the mounting piece 1, the clamping tongues move unevenly towards the central axis of the cable screw and the cable 16 is consequently compressed unevenly (via the seal 8).
  • the clamping tongues 6 are pressed together more than in the area of the long axis of the oval 18 (FIG. 5).
  • the stronger compression of the clamping tongues 6 in the region of the short axis of the oval 18 achieves a fixation of the cable 16 in the cable gland, which is considerably stronger than in the case of a radial cross-sectional view of the spherical curvature of the inner surface 15.
  • the clamping tongues 6 are alternately bent more or less towards the central axis of the cable screw connection.
  • the clamping tongues which are bent more inwards, exert a greater frictional pressure on the inner surface 15. It has been found that this increased frictional pressure of the clamping tongues 6 on the inner surface 15 (in the region of the short axis of the oval 18) ensures, as a rule, that the pressure screw 9 on the fitting 1 is sufficiently secured against rotation, even if this curved inner surface is smooth.
  • the effect of the anti-rotation device can be increased even further if a grooving or toothing 13 (FIG. 3) is provided on the inner surface 15, which can come into positive engagement with the ends of the clamping tongues 6.
  • a grooving or toothing 13 FIG. 3
  • the clamping tongues 6 are separated from one another by relatively wide slots 5 which run obliquely to the radial direction. Instead of these slots, notches or narrow cuts could also be provided, as a result of which the clamping tongues 6 would slide over one another earlier when the pressure screw 9 was applied than in the embodiment shown in FIGS. 1 and 2.
  • the ends of the clamping tongues 6 forming the clamping collar 7 could also have a frustoconical contour in another embodiment of the invention. As can be seen from FIG. 6, the ends of the clamping tongues 6 can also engage directly on the cable 16.
  • the pressure screw 9 could alternatively also be designed as a non-screwable pressure part, which can be clamped together with the assembly connection 1, for example, like a bayonet lock or the like. This does not change the effect of the device described.
  • the main advantages achieved by the invention are that, on the one hand, because of the uneven compression of the clamping tongues 6 due to the oval inner curvature of the pressure screw 9, the cable is partially fixed, and on the other hand, the oval-curved inner surface 15 of the pressure screw is simultaneously secured against rotation delivers that works regardless of fatigue of the clamping tongues 6.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
  • Installation Of Indoor Wiring (AREA)

Abstract

A device for holding cables, pipes, hoses or the like has a hollow cylindrical fitting stub through which the cable or the like is led and a thrust screw (9) with a corrugated inner surface (15) which can be screwed on the fitting stub. There are clamping tongues (6) on the side of the fitting stub facing the thrust screw. An elastic seal (8) is inserted inside the clamping tongues. When the thrust screw is tightened on the fitting stub, clamping tongues (6) bearing on the corrugated inner surface (15) of the thrust screw (9) are pressed together and thus presses the seal on the cable (16) or the like. The inner surface (15) of the thrust screw (19) is ovally corrugated (18) when viewed in radial cross-section so that the clamping tongues (6) can be unevenly pressed together, leading to a sturdier securing of the cable in the device and at the same time prevents the thrust screw from rotating.

Description

B e s c h r e i b u n g Description
Vorrichtung zum Halten von Kabeln, Leitungen, Schläuchen oder dergleichenDevice for holding cables, lines, hoses or the like
Die Erfindung betrifft eine Vorrichtung zum Halten von Kabeln, Leitungen, Schläuchen oder dergleichen mit einem hohlzylindri- schen Montagestutzen zur Durchführung des Kabels oder derglei¬ chen und mit einer auf den Montagestutzen aufschraubbaren Druckschraube mit gewölbter Innenfläche, wobei am Montagestut¬ zen an dessen der Druckschraube zugewandten Seite Klemmzungen angeordnet sind, und innerhalb der Klemmzungen eine elastische Dichtung angeordnet ist, und wobei durch das Aufschrauben der Druckschraube auf den Montagestutzen die an der gewölbten In¬ nenfläche der Druckschraube anliegenden Klemmzungen zusammen¬ preßbar sind und hierdurch die Dichtung an das Kabel oder der¬ gleichen andrückbar ist.The invention relates to a device for holding cables, lines, hoses or the like with a hollow cylindrical mounting piece for the passage of the cable or the like and with a pressure screw which can be screwed onto the mounting piece and has an arched inner surface, the pressure screw on the mounting piece Clamping tongues are arranged on the facing side, and an elastic seal is arranged within the clamping tongues, and the clamping tongues lying on the curved inner surface of the pressure screw can be pressed together by screwing the pressure screw onto the assembly connection piece, and thereby the seal on the cable or the ¬ same can be pressed.
Bei einer bekannten Kabelverschraubung dieser Art (GB-PS 15 43 678) ist die Innenfläche der Druckschraube kegel- oder kugelförmig, also in radialer Querschnittsansicht kreis¬ förmig gewölbt, so daß die Klemmzungen beim Aufschrauben der Druckschraube auf den Montagestutzen gleichmäßig zusammenge¬ preßt werden. Um ein unbeabsichtigtes Lösen der Druckschraube vom Montagestutzen zu verhindern, ist die kegel- oder kugelför¬ mig gewölbte Innenfläche der Druckschraube mit einer Riefung, Zahnung oder dergleichen versehen, die mit den Klemmzungen in Eingriff gelangt und als VerdrehungsSicherung für die Druck¬ schraube wirkt. Durch die kegelig-kugelige Ausbildung der Druckschraubeninnenfläche und die damit verbundene gleichmäßige Zusammenpressung der Klemmzungen kann es vorkommen, daß der auf das Kabel auszuübende Preßdruck nicht die zur Verdrehsicherung erforderliche Höhe erreicht.In a known cable gland of this type (GB-PS 15 43 678), the inner surface of the pressure screw is conical or spherical, that is to say circularly curved in a radial cross-sectional view, so that the clamping tongues are evenly pressed together when the pressure screw is screwed onto the assembly connection piece. In order to prevent unintentional loosening of the pressure screw from the assembly socket, the conically or spherically curved inner surface of the pressure screw is provided with a grooving, toothing or the like, which comes into engagement with the clamping tongues and acts as a rotation lock for the pressure screw. Due to the conical-spherical design of the pressure screw inner surface and the associated uniform Compression of the clamping tongues may mean that the pressure to be exerted on the cable does not reach the height required to prevent rotation.
Es ist Aufgabe der Erfindung, den geschilderten Mängeln abzu¬ helfen und eine gattungsgemäße Vorrichtung (Kabelverschraubung) so zu verbessern, daß einerseits auf das Kabel oder dergleichen durch die elastische Dichtung ein partiell erhöhter Preßdruck ausübbar und eine bessere Verdrehungssicherung gewährleistet ist.It is an object of the invention to remedy the shortcomings described and to improve a generic device (screwed cable gland) in such a way that on the one hand a partially increased pressure can be exerted on the cable or the like by the elastic seal and a better protection against rotation is ensured.
Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Innen¬ fläche der Druckschraube in radialer Querschnittsansicht oval gewölbt ist und hierdurch die Klemmzungen ungleichmäßig zusam¬ menpreßbar sind.The object is achieved in that the inner surface of the pressure screw is oval in a radial cross-sectional view and as a result the clamping tongues can be pressed together unevenly.
Die nachstehende Beschreibung einer bevorzugten Ausführungsform der Erfindung dient im Zusammenhang mit beiliegender Zeichnung der weiteren Erläuterung. Es zeigen:The following description of a preferred embodiment of the invention serves in conjunction with the accompanying drawings for further explanation. Show it:
Figur 1 eine Vorderansicht eines Montagestut¬ zens;Figure 1 is a front view of a Montagestut¬ zens;
Figur 2 eine teilweise geschnittene Seitenan¬ sicht des Montagestutzens aus Figur 1;FIG. 2 shows a partially sectioned side view of the assembly socket from FIG. 1;
Figur 3 eine Vorderansicht einer Druckschrau¬ be;FIG. 3 shows a front view of a pressure screw;
Figur 4 eine teilweise geschnittene Seitenan¬ sicht der Druckschraube in Richtung des Pfeiles A aus Figur 3; Figur 5 eine teilweise geschnittene Seitenan¬ sicht der Druckschraube in Richtung des Pfeiles B aus Figur 3 undFIG. 4 shows a partially sectioned side view of the pressure screw in the direction of arrow A from FIG. 3; 5 shows a partially sectioned side view of the pressure screw in the direction of arrow B from FIG. 3 and
Figur 6 eine Schnittansicht der zusammenge¬ setzten Teile aus Figur 1 bis 5.6 shows a sectional view of the assembled parts from FIGS. 1 to 5.
Ein in Figur 1 und 2 dargestellter, hohlzylindrischer Montage¬ stutzen 1 besteht aus zähelastischem Kunststoff, insbesondere Polyamid. Der Stutzen 1 weist auf seiner in Figur 2 links gele¬ genen Seite ein äußeres Anschlußgewinde 2 und einen zur Montage an der Wand .14 eines Gehäuses oder dergleichen (vgl. Figur 6) erforderlichen Druckbund 3 in Form eines Sechskants auf. An den Bund 3 schließt sich ein Außengewinde 4 zum Aufbringen einer Druckschraube 9 (Figur 3, 4 und 5) an.A hollow cylindrical mounting stub 1 shown in FIGS. 1 and 2 consists of tough elastic plastic, in particular polyamide. The socket 1 has on its left side in FIG. 2 an outer connecting thread 2 and one for mounting on the wall . 14 of a housing or the like (see FIG. 6) required pressure collar 3 in the form of a hexagon. An external thread 4 adjoins the collar 3 for applying a pressure screw 9 (FIGS. 3, 4 and 5).
Wie in Figur 1 und 2 dargestellt, sind an den Montagestutzen 1 einstückig und koaxial mehrere Klemmzungen 6 angeformt, die bis zum Außengewinde 4 reichen und durch schräg verlaufende Schlit¬ ze 5 voneinander getrennt sind. Die Klemmzungen 6 und die Schlitze 5 folgen alternierend aufeinander und bilden gemeinsam einen Spannbund 7, in den koaxial eine hohlzylindrische Dich¬ tung 8 aus elastischem Material eingesetzt ist. Wie aus Figur 2 ersichtlich, weist der Montagestutzen 1 am Ansatzpunkt der Klemmen 6 eine Hinterschneidung auf, in welche die Dichtung 8 formschlüssig eingreift. Hierdurch und durch die Klemmzungen 6 ist die Dichtung 8 unverlierbar gehalten.As shown in FIGS. 1 and 2, a plurality of clamping tongues 6 are integrally and coaxially formed on the mounting piece 1, which extend up to the external thread 4 and are separated from one another by obliquely running slots 5. The clamping tongues 6 and the slots 5 follow one another alternately and together form a tension collar 7, into which a hollow cylindrical seal 8 made of elastic material is inserted coaxially. As can be seen from FIG. 2, the mounting socket 1 has an undercut at the attachment point of the terminals 6, in which the seal 8 engages in a form-fitting manner. As a result, and through the clamping tongues 6, the seal 8 is held captive.
Statt der einstückigen Anfor ung der Klemmzungen 6 an den Mon¬ tagestutzen 1 könnte in letzteren auch ein separater Käfig ein¬ gesetzt sein, an welchem die Klemmzungen 6 ausgebildet sind.Instead of the one-piece requirement of the clamping tongues 6 on the mounting socket 1, a separate cage could also be used in the latter, on which the clamping tongues 6 are formed.
Die in Figur 3 und 4 dargestellte, hutmutterförmige Druck¬ schraube 9 umfaßt einen dem Angriff eines Schraubschlüssels dienenden Sechskant 10 und ein Innengewinde 11, mit dem die Druckschraube 9 auf das Außengewinde 4 des Montagestutzens 1 aufschraubbar ist. Die dem Secbiskant 10 abgekehrte Innenfläche 15 der Druckschraube 9 ist gewölbt oder kegelstumpfförmig aus¬ gebildet und wirkt mit den freien Enden der Klemmzungen 6 zusammen, wie im nachstehenden noch beschrieben werden wird.The cap nut-shaped pressure screw 9 shown in FIGS. 3 and 4 comprises an attack by a wrench Serving hexagon 10 and an internal thread 11, with which the pressure screw 9 can be screwed onto the external thread 4 of the mounting piece 1. The inner surface 15 of the pressure screw 9 facing away from the Secbiskant 10 is curved or frustoconical and cooperates with the free ends of the clamping tongues 6, as will be described in the following.
In Figur 6 ist der hohlyzlindrische Montagestutzen 1 darge¬ stellt, wie er mittels des Anschlußgewindes 2 an der Wand 14 eines Gehäuses befestigt ist, wobei er sich mit dem Druckbund 3 an der Wand abstützt und mit einer Gegenmutter 17 gesichert ist. Durch das Aufschrauben der Druckschraube 9 auf das Außen¬ gewinde 4 des Montagestutzens 1 werden dieser Stutzen 1 und die Schraube 9 so miteinander verbunden, daß sich die Klemmzungen 6 an der schrägen oder gewölbten, ein Stützlager bildenden Innen¬ fläche 15 der Druckschraube 9 abstützen und beim Aufschrauben der Druckschraube 9 allmählich fächerförmig zur Mittelachse der Kabelverschraubung hinbewegen. Hierdurch wird der von den Enden der Klemmzungen 6 gebildete Spannbund 7 peripher gegen die Dichtung 8 angepreßt, die hierdurch wiederum fest gegen das Kabel 16 angedrückt wird. Man erreicht auf diese Weise eine Fixierung des Kabels in der Vorrichtung mit gleichzeitiger Zug¬ entlastung der Kabels. Gleichzeitig wird durch die gegen das Kabel 16 gedrückte Dichtung 8 die erwünschte Abdichtung erzielt.FIG. 6 shows the hollow-cylindrical assembly connector 1 as it is fastened to the wall 14 of a housing by means of the connecting thread 2, wherein it is supported on the wall with the pressure collar 3 and is secured with a lock nut 17. By screwing the pressure screw 9 onto the external thread 4 of the mounting socket 1, this socket 1 and the screw 9 are connected to one another in such a way that the clamping tongues 6 are supported on the inclined or curved inner surface 15 of the pressure screw 9 forming a support bearing and when screwing on the pressure screw 9, gradually move it in a fan shape towards the central axis of the cable gland. As a result, the clamping collar 7 formed by the ends of the clamping tongues 6 is pressed peripherally against the seal 8, which in turn is thereby pressed firmly against the cable 16. In this way, the cable is fixed in the device with simultaneous strain relief of the cable. At the same time, the desired seal is achieved by the seal 8 pressed against the cable 16.
Wie insbesondere aus Figur 3, 4 und 5 hervorgeht, ist die Innenfläche 15 der Druckschraube 9 nicht kugelig (sphärisch), sondern in einer in radiale Querschnittsansichten von der Kreisform abweichenden Weise, insbesondere oval oder elliptisch gewölbt, wobei unter den Ausdruck "Wölbung" auch eine kegel- stumpfförmige Ausbildung der Innenfläche 15 fallen soll. In Figur "3 ist das von der Kreisform abweichende Oval 18 deutlich erkennbar. Diese Ovalform führt dazu, daß in Figur 4 die Wand¬ dicke der Druckschraube 9 im Bereich der Innenfläche 15 größer als in Figur 5 ist .As can be seen in particular from FIGS. 3, 4 and 5, the inner surface 15 of the pressure screw 9 is not spherical (spherical), but rather is curved in a cross-sectional view that deviates from the circular shape, in particular oval or elliptical, with the expression “curvature” also a frustoconical formation of the inner surface 15 should fall. The oval 18 deviating from the circular shape can be clearly seen in FIG. 3. This oval shape means that in FIG. 4 the wall thickness of the pressure screw 9 increases in the area of the inner surface 15 than in Figure 5.
Die ovale Wölbung der Innenfläche 15 führt dazu, daß sich beim Aufschrauben der Druckschraube 9 auf den Montagestutzen 1 die Klemmzungen ungleichmäßig zur Mittelachse der Kabelschraube hinbewegen und das Kabel 16 infolgedessen (über die Dichtung 8) ungleichmäßig zusammengedrückt wird. Im Bereich der kurzen Ach¬ se des Ovals 18 (Figur 4) werden die Klemmzungen 6 stärker zusammengepreßt als im Bereich der langen Achse des Ovals 18 (Figur 5) . Durch die stärkere Zusammenpressung der Klemmzungen 6 im Bereich der kurzen Achse des Ovals 18 wird eine Fixierung des Kabels 16 in der Kabelverschraubung erreicht, die wesent¬ lich stärker als bei einer in radialer Querschnittsansicht kugeligen Wölbung der Innenfläche 15 ist.The oval curvature of the inner surface 15 leads to the fact that when the pressure screw 9 is screwed onto the mounting piece 1, the clamping tongues move unevenly towards the central axis of the cable screw and the cable 16 is consequently compressed unevenly (via the seal 8). In the area of the short axis of the oval 18 (FIG. 4), the clamping tongues 6 are pressed together more than in the area of the long axis of the oval 18 (FIG. 5). The stronger compression of the clamping tongues 6 in the region of the short axis of the oval 18 achieves a fixation of the cable 16 in the cable gland, which is considerably stronger than in the case of a radial cross-sectional view of the spherical curvature of the inner surface 15.
Außerdem werden beim Aufschrauben der Druckschraube 9 auf den Montagestutzen 1, also während der Verdrehung der Druckschraube 9, die Klemmzungen 6 abwechselnd mehr oder weniger zur Mittel¬ achse der Kabelverschraubung hin verbogen. Die stärker nach einwärts gebogenen Klemmzungen üben dabei einen größeren Rei¬ bungsdruck auf die Innenfläche 15 aus. Es wurde gefunden, daß dieser erhöhte Reibungsdruck der Klemmzungen 6 an der Innenflä¬ che 15 (im Bereich der kurzen Achse des Ovals 18) eine im Regelfalle ausreichende Verdrehungssicherung der Druckschraube 9 auf dem Montagestutzen 1 gewährleistet, auch wenn diese gewölbte Innenfläche glatt ausgebildet ist.In addition, when the pressure screw 9 is screwed onto the mounting socket 1, that is to say during the rotation of the pressure screw 9, the clamping tongues 6 are alternately bent more or less towards the central axis of the cable screw connection. The clamping tongues, which are bent more inwards, exert a greater frictional pressure on the inner surface 15. It has been found that this increased frictional pressure of the clamping tongues 6 on the inner surface 15 (in the region of the short axis of the oval 18) ensures, as a rule, that the pressure screw 9 on the fitting 1 is sufficiently secured against rotation, even if this curved inner surface is smooth.
Man kann die Wirkung der Verdrehungssicherung noch erhöhen, wenn man auf der Innenfläche 15 eine Riefung oder Verzahnung 13 (Figur 3) vorsieht, die mit den Enden der Klemmzungen 6 in formschlüssigen Eingriff gelangen kann. Bei der auf der Zeich¬ nung (Figur 1) dargestellten Ausführungsform der Erfindung sind die Klemmzungen 6 durch verhältnismäßig breite, schräg zur radialen Richtung verlaufende Schlitze 5 voneinander getrennt. Statt dieser Schlitze könnten auch Einkerbungen oder schmale Schnitte vorgesehen werden, wodurch das Ubereinandergleiten der Klemmzungen 6 beim Aufbringen der Druckschraube 9 früher ein¬ setzen würde als bei der in Figur 1 und 2 dargestellten Ausfüh¬ rungsform.The effect of the anti-rotation device can be increased even further if a grooving or toothing 13 (FIG. 3) is provided on the inner surface 15, which can come into positive engagement with the ends of the clamping tongues 6. In the embodiment of the invention shown in the drawing (FIG. 1), the clamping tongues 6 are separated from one another by relatively wide slots 5 which run obliquely to the radial direction. Instead of these slots, notches or narrow cuts could also be provided, as a result of which the clamping tongues 6 would slide over one another earlier when the pressure screw 9 was applied than in the embodiment shown in FIGS. 1 and 2.
Die den Spannbund 7 bildenden Enden der Klemmzungen 6 könnten bei einer anderen Ausführungsform der Erfindung auch eine kegelstumpfförmige Kontur aufweisen. Die Enden der Klemmzungen 6 können, wie aus Figur 6 ersichtlich, auch unmittelbar am Kabel 16 angreifen.The ends of the clamping tongues 6 forming the clamping collar 7 could also have a frustoconical contour in another embodiment of the invention. As can be seen from FIG. 6, the ends of the clamping tongues 6 can also engage directly on the cable 16.
Die Druckschraube 9 könnte alternativ auch als ein nicht- schraubbares Druckteil ausgebildet sein, das beispielsweise wie ein Bajonettverschluß oder dergleichen mit dem Montagestutzen 1 zusammenspannbar ist. An der Wirkung der beschriebenen Vorrich¬ tung ändert sich hierdurch nichts.The pressure screw 9 could alternatively also be designed as a non-screwable pressure part, which can be clamped together with the assembly connection 1, for example, like a bayonet lock or the like. This does not change the effect of the device described.
Die wesentlichen durch die Erfindung erzielten Vorteile beste¬ hen darin, daß einerseits wegen der ungleichmäßigen Zusammen¬ pressung der Klemmzungen 6 aufgrund der ovalen Innenwölbung der Druckschraube 9 das Kabel stellenweise eine stärkere Fixierung erhält, und andererseits die oval gewölbte Innenfläche 15 der Druckschraube gleichzeitig eine Verdrehungssicherung liefert, die unabhängig von Ermüdungserscheinungen der Klemmzungen 6 funktioniert. The main advantages achieved by the invention are that, on the one hand, because of the uneven compression of the clamping tongues 6 due to the oval inner curvature of the pressure screw 9, the cable is partially fixed, and on the other hand, the oval-curved inner surface 15 of the pressure screw is simultaneously secured against rotation delivers that works regardless of fatigue of the clamping tongues 6.

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Vorrichtung zum Halten von Kabeln, Leitungen, Schläuchen oder dergleichen mit einem hohlzylindrischen Montagestut¬ zen zur Durchführung des Kabels oder dergleichen und mit einer auf den Montagestutzen aufschraubbaren Druckschraube mit gewölbter Innenfläche, wobei am Montagestutzen an des-1. Device for holding cables, lines, hoses or the like with a hollow cylindrical Montagestut¬ zen for the passage of the cable or the like and with a screw screw on the mounting socket with a curved inner surface, with the
- sen der Druckschraube zugewandten Seite Klemmzungen ange¬ ordnet sind und innerhalb der Klemmzungen eine elastische Dichtung angeordnet ist, und wobei durch das Aufschrauben der Druckschraube auf den Montagestutzen die an der ge¬ wölbten Innenfläche der Druckschraube anliegenden Klemm¬ zungen zusammenpreßbar sind und hierdurch die Dichtung an das Kabel oder dergleichen andrückbar ist, d a d u r c h g e k e n n z e i c h n e t , daß die Innenfläche (15) der Druckschraube (9) in radialer Querschnittsansicht oval gewölbt ist und hierdurch die Klemmzungen (6) ungleichmäßig zusammenpreßbar sind.- Clamping tongues are arranged on the side facing the pressure screw and an elastic seal is arranged within the clamping tongues, and the clamping tongues resting on the curved inner surface of the pressure screw can be pressed together by screwing the pressure screw onto the assembly connection, and thereby the seal can be pressed against the cable or the like, characterized in that the inner surface (15) of the pressure screw (9) is oval in a radial cross-sectional view and as a result the clamping tongues (6) can be compressed unevenly.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die oval gewölbte Innenfläche (15) der Druckschraube (9) eine mit den Klemmzungen ( 6 ) in Eingriff bringbare Rie¬ fung, oder Verzahnung (13) aufweist, die als zusätzliche Verdrehungssicherung der Druckschraube (9) wirkt.2. Apparatus according to claim 1, characterized in that the oval curved inner surface (15) of the pressure screw (9) with the clamping tongues (6) can be brought into engagement Rie¬ tion, or toothing (13) which as an additional rotation of the pressure screw (9) works.
3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeich¬ net,, daß sie aus zähelastischem Kunststoff, insbesondere Polyamid gefertigt ist. 3. Device according to claim 1 or 2, characterized gekennzeich¬ net, that it is made of tough elastic plastic, especially polyamide.
4. Vorrichtung nach Anspruch 1, 2 oder 3, dadurch gekenn¬ zeichnet, daß die Klemmzungen (6) ringförmig und koaxial am Montagestutzen (1) angeordnet und durch Schlitze (5) voneinander getrennt sind. 4. Apparatus according to claim 1, 2 or 3, characterized gekenn¬ characterized in that the clamping tongues (6) are arranged annularly and coaxially on the mounting piece (1) and are separated from one another by slots (5).
PCT/EP1991/000238 1990-04-05 1991-02-08 Device for holding cables, pipes, hoses or the like WO1991015700A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4011024.9 1990-04-05
DE19904011024 DE4011024C1 (en) 1990-04-05 1990-04-05

Publications (1)

Publication Number Publication Date
WO1991015700A1 true WO1991015700A1 (en) 1991-10-17

Family

ID=6403832

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1991/000238 WO1991015700A1 (en) 1990-04-05 1991-02-08 Device for holding cables, pipes, hoses or the like

Country Status (3)

Country Link
EP (1) EP0523055A1 (en)
DE (1) DE4011024C1 (en)
WO (1) WO1991015700A1 (en)

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DE202009007433U1 (en) 2009-05-17 2009-08-27 Hidde, Axel R., Dr. Ing. Universal quick connector
DE102008031324A1 (en) * 2008-07-02 2010-01-07 Gessmann Gmbh & Co. Kg Mounting component for mounting line in motor vehicle, has outer body extruded at insert by injection molding process so that rigidity of plastic used for insert is higher than rigidity of plastic used for outer body
CN113944808A (en) * 2021-11-04 2022-01-18 中国科学院武汉病毒研究所 Sealing device for wall-penetrating pipe fitting in biosafety laboratory

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DE4200549C1 (en) * 1992-01-11 1993-05-19 Anton Hummel Verwaltungs Gmbh, 7808 Waldkirch, De
DE4223514A1 (en) * 1992-07-17 1994-01-20 Kleinhuis Hermann Gmbh Screw connection made of plastic for insertion and implementation, sealing and strain relief of cables, lines or hoses
US5405172A (en) * 1993-05-13 1995-04-11 Heyco Molded Products, Inc. Plastic liquid tight connector for cable, tubes or rods
DE19506064A1 (en) * 1995-02-22 1996-08-29 Bopla Gehaeuse Systeme Gmbh Screw connection, especially for cables
DE19544963A1 (en) * 1995-12-04 1997-06-05 Bopla Gehaeuse Systeme Gmbh Threaded cable, line or hose fitting
FR2946726B1 (en) * 2009-06-16 2014-03-21 Persohn Sa MEANS FOR RETENTION OF PIPES ON ELEMENTS OF A BURIED LOOK AND LOOK EQUIPPED WITH SUCH MEANS.
DE202013003600U1 (en) * 2013-04-17 2014-07-21 Wiska Hoppmann & Mulsow Gmbh Cable gland with integral joint
DE102014012335A1 (en) * 2014-08-20 2016-02-25 Kostal Kontakt Systeme Gmbh Electric device
DE102016220025B4 (en) * 2016-10-13 2020-02-20 Bayerische Motoren Werke Aktiengesellschaft Component hold device
DE102018104126B4 (en) 2018-02-23 2020-06-04 Viega Technology Gmbh & Co. Kg System for connecting and passing a pipe through an opening in a deck
EP3598593B1 (en) 2018-07-21 2022-04-13 Lapp Engineering AG Cable connection

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EP0156956A1 (en) * 1984-03-14 1985-10-09 Siemens Nixdorf Informationssysteme Aktiengesellschaft Device to maintain an electric cable in a connection box
EP0232831A2 (en) * 1986-02-11 1987-08-19 Hermann Holzmann Screw-threaded cable fitting
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EP0156956A1 (en) * 1984-03-14 1985-10-09 Siemens Nixdorf Informationssysteme Aktiengesellschaft Device to maintain an electric cable in a connection box
EP0232831A2 (en) * 1986-02-11 1987-08-19 Hermann Holzmann Screw-threaded cable fitting
DE3828953A1 (en) * 1988-08-26 1990-03-08 Glaskabel Gmbh S Device for retaining cables, lines, hoses or the like

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008031324A1 (en) * 2008-07-02 2010-01-07 Gessmann Gmbh & Co. Kg Mounting component for mounting line in motor vehicle, has outer body extruded at insert by injection molding process so that rigidity of plastic used for insert is higher than rigidity of plastic used for outer body
DE202009007433U1 (en) 2009-05-17 2009-08-27 Hidde, Axel R., Dr. Ing. Universal quick connector
DE102009021700A1 (en) 2009-05-17 2010-11-18 Hidde, Axel, Dipl.-Ing. Universal quick-release fitting
CN113944808A (en) * 2021-11-04 2022-01-18 中国科学院武汉病毒研究所 Sealing device for wall-penetrating pipe fitting in biosafety laboratory

Also Published As

Publication number Publication date
DE4011024C1 (en) 1991-08-22
EP0523055A1 (en) 1993-01-20

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