DE7907121U1 - Device for sealing connection points on a continuous object, in particular cable sleeves - Google Patents

Description

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The invention relates to a device for sealing of cable sleeves with an essentially sleeve-shaped, Slotted envelope made of heat-shrinkable material, the longitudinal edges of which are essentially C-shaped Clamping element are held together.

Known devices of this type (DE-PS 1 525 815) have bead-like longitudinal edges, which by a C-shaped clamping rail with their back surfaces matching one another without any gaps be pressed, these edge beads must have a considerable strength in order to achieve a perfect seal to ensure. The production of such slotted casings with longitudinal edges having edge beads is However, this is complicated and expensive, since the wall thickness is as uniform as possible for the manufacture of such parts is strived for. In particular, the known device requires the formation of the bead-like longitudinal edges Great manufacturing care with regard to very exact calibration because of the need to remove the back surfaces of the bulging |

I-like longitudinal edges press against one another without any gaps I

to have to. IJ

The same also applies to a further known device (DE-OS 26 53 940), which is also bead-like Has longitudinal edges, with only instead of a C-shaped Yerbindungs-Kleininschiene sur achieving a better Flexibility in curved areas of the fastening

guiigswülste a spiral spring which can be screwed into openings of the same is provided. However, there are the same problems as in the case of the reinforced edge beads previously described known device according to DE-PS 1 525 815.

The object of the invention is to create a solution which primarily involves the production of slotted casings of the type in question simplified and at the same time a particularly good seal with lighter and faster Assembly before the shrinking process creates.

In a device of the type mentioned, this object is achieved according to the invention in that the casing, which has the same thickness throughout, has two bulges of this type in its two longitudinal edge regions different sizes that the smaller bulge with snap fit in the larger bulge can be snapped into place when connecting the two longitudinal edges, with the smaller bulge inside a heat-resistant support strip is arranged.

Because of this design, it is possible to use the extrusion process to produce the sheath with the same thickness throughout and then to form the two bulges in the two longitudinal edge regions while still being malleable, which can easily be undercut

can, since the molding tools can easily be pulled out again before the cover has finally cooled down.

In order to prevent gas from escaping in the connection area of the two longitudinal edges of cables monitored by gas pressure it is advisable to use one of the Enclosure to be provided in the connected state lying on the inside T-shaped sealing foot. Such a T-shaped sealing foot is on its own, i.e. without connection to a supporting element serving as an inner abutment, in the case of the above already described device according to DE-OS 26 53 9 ^ 0 known .

j The sealing effect can be increased if the

f

; '' T-shaped sealing foot with a hot melt adhesive sleeve around

'is given in such a way that later on the

f Covering with heat application on all sides

b bung thereof NIIT the opposed portions of the

Wrapping takes place.

We recommend using the plastic support strip

a metal insert, in particular a copper wire, to ensure that in the event of a jamming the two longitudinal edges a sufficiently pressure-resistant abutment by means of the aforementioned C-shaped clamping element inside the smaller bulge is given, i.e. no too much deviation of the two with a snap fit into one another !. 'protruding bulges inward can.

Finally, it is useful to pre-assemble the support strip in the smaller bulge, i.e. in the course of the To use fabrication production so that assembly on site can be done more easily.

The invention is explained in more detail below with reference to the drawing, for example. This shows in

Pig. Fig. 1 shows a device according to the invention in an exploded view perspective representation and in

2 shows a section through a device according to the invention in the assembled state.

A slotted cover 1 consisting of heat-shrinkable plastic material "is provided with longitudinal edges 2 and 3, a smaller bulge k being formed at a small distance from one longitudinal edge 2 and a larger bulge 5 being formed at a corresponding distance from the other longitudinal edge 3, with the dimensioning is such that the larger bulge 5 can snap over the smaller bulge k during assembly with a snap fit enabling the production of such an envelope, as previously mentioned above, very simplified, since this only the indentation of the indentations ¹ I and 5 is necessary by means of appropriate molds after production of the sheath in the flat state.

Before connecting the two longitudinal edges 2 and 3 of the envelope 1 by slipping the larger bulge 5 over the smaller bulge k , a support strip 6 with a T-shaped sealing foot 7 is inserted into the smaller bulge 4, the dimensions of the in the smaller bulge 4 inserted part of the support strip is in turn such that it completely fills the cavity of the smaller bulge H and thus a solid one

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Forms abutment when the two bulges 5 and H are pressed together by a conventional C-shaped clamping rail 8. A metal insert, preferably in the form of a copper wire 9 », is arranged within the support strip 6 in such a way that, on the one hand, a good compressive strength of the part of the support strip 9 located within the bulge H is guaranteed, but on the other hand, sufficient flexibility to adapt to necessary deformations on the End areas of the respective socket is retained.

As indicated in FIG. 1, the T-shaped sealing foot 7 also eats a hot melt adhesive 10 uneven, in such a way that when the sheath 1 is attached to the cable splice on all sides a good seal between the foot 7 and the opposite Areas of the envelope is guaranteed, so that leaks in this area are monitored with gas pressure Cables are not to be feared.

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Claims (1)

PATENT LAWYERS MEINKE AND DABRINGHAUS REPRESENTATIVE BHM EUROPEAN PATENT OFFICE- REPRESENTATIVES BEFORE EPO-MANDATAIRES AGREES PRES L'OEB DIPL.-ING. J. MEINKE DIPL-ING. W. DABRINGHAUS 4600 DORTMUND 1, 17 February 1981 WESTENHELLWEG 67 D / \ TELEPHONE (02 31) 14 5810 TELEGRAM DOPAT Dortmund TELEX 822 7328 pat d FILE NO: 20/3307 Expectations : 1. Device for sealing cable sleeves with an essentially sleeve-shaped, slotted covering made of heat-shrinkable material, the longitudinal edges of which are held together by an essentially C-shaped clamping element, characterized in that the covering (1), which has the same thickness throughout, in its two longitudinal edge areas ( 2,3) has two bulges (4,5) of such different sizes that the smaller bulge (4) can be snapped into the larger bulge (5) when connecting the two longitudinal edges, with the smaller bulge ( ¹ I) a heat-resistant support tire (6) is arranged. 2. Apparatus according to claim 1, characterized in that the support strip (6) with one of the envelope (1) in the ir · ·· «» ■ ^w binding state inside adjacent T-shaped sealing foot (7) is provided. 3. Apparatus according to claim 2, characterized in that the T-shaped sealing foot (7) is surrounded by a hot melt adhesive layer (10). k. Device according to claim 1 or one of the following, characterized in that the support strip (6) made of plastic fabric with a metal insert (9), in particular one Copper wire. 5. Apparatus according to claim 1 or one of the following, characterized characterized in that the support strip (6) is inserted pre-assembled into the smaller bulge (4).