FI60793B - AENDSTYCKE FOER ETT LINDAT INVAENDIGT BEKLAETT HOELJE - Google Patents

Description

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Ma W (11) UTLÄGGNINGSSKAIFT OU / y ό C (45) Patent granted 10 03 1032 Patent aeddelat V v X (51) Kv.ik? /Int.a.3 H 02 G 3/06 i FINLAND —FINLAND (21) P »t * nttlh» k * mu «- PutunumOknlnj 2363/7 ^ (22) H» k # ml * plhfi - AiwBknlnftdag 08.08.7 ^ (23) Primary Cloud - GIMgh «tad« g 08.08.7 ^ (41) Tullut to the public - Bllvlt offsntllg 12.02.75 _. . . (44) Date of NthUviksIpsnon and other month

Patent and registration authorities Antttkftn uttafd och utl. $ Kriftun publlcerad 30.11.8l (32) (33) (31) Pyy4 * «y etuoikeus-Begtnl prlodtet 11.08.73

England-England (GB) 382 ^ 0/73 (71) (72) Bengt Sigvard Göransson, Ridvägen 6, 73600 Kungsör, Sweden-Sverige (SE) (7 ^) Oy Borenius & Co. At (5U) Coupling device for twisted, lined pipe - Ändstycke för ett lindat invändigt beklätt hölje

The invention relates to a coupling device for a helically wound pipe lined with a plastic material. British Patent Specification No. 817,969 in the name of the applicant discloses a coupling device for wires having a pipe section having a longitudinal and circumferential notch at at least one end so as to form a circumferential tongue and further having a surrounding ring through which one or more clamping screws adapted to clamp this tongue into the clamping contact with the inserted wire so as to provide the desired clamping effect.

The present invention relates to a device by means of which a substantially waterproof connection can be provided between a switching device of the type described in the aforementioned British Patent No. 817,969 and a cable to which this switching device is fitted.

The coupling device according to the invention comprises, on the one hand, a tubular part having at one end a circumferential tongue delimiting an angular notch and at the other end having members cooperating with a proximal member such as a wall or the like, on the other hand a ring adapted to radially surround the tubular part outside the tongue and having a clamping screw in communication with the tongue for pressing it into contact with a tube, the tube end of which is inserted into the tubular part, the tubular part being fitted with a sleeve of plastic material at one end close to the wall of the tubular part and having a flange rests on the free end of the tubular part.

The invention is characterized in that the sleeve at its opposite end is smaller in diameter, whereby together with the tubular part it limits the annular space for the inner liner from which water can escape through drain holes so that the pipes or the like in the pipe are protected against moisture and wear. will be blocked.

The invention will be explained in more detail below on the basis of an embodiment described in the accompanying drawings, which is fitted to an electric line.

Figure 1 shows this embodiment in a perspective view.

Figure 2 shows on an enlarged scale a longitudinal section of the embodiment shown in Figure 1.

According to the drawing, the cable is formed of a helically wound metal tube 5 with a lining H of plastic material. The cable is terminated by a coupling device 1 with a threaded free end 11. The fixed end 12 of the coupling device 1 has a tubular part notched to form a tongue 13. Sleeve 14 surrounds this end 12 and is attached to this end by soldering 14a. The sleeve 14 has a clamping screw 15 which can be screwed against the tongue 13 to press this tongue into contact with the tube 5.

The coupling device 1 has an inner sleeve 3 of rigid plastic material, which at one end seals against the liner 4 and at the other end seals against the free end 11 at the flange 16. The coupling device also has a drain hole 2 for a liquid which can accumulate between the sleeve 3 and the coupling device 1.

The electrical conductors 6 pass along the wire and through the switching device 1.

3 60793

The embodiment shown in the drawing is intended for use in a humid climate, e.g. in a place where splash water or rain is present. The splashing water is shown as droplets 7 falling onto the switching device. These droplets tend to flow along the outer side of the tube 5, whereby in the absence of the sleeve 3 they would moisten the conductors 6.

When the sleeve 3 is in place, the water flowing along the outside of the pipe 5 comes out through the drain hole 2 so that the conductors 6 are protected. A number of drain holes 2 could be placed in different angular positions around the coupling device so that drainage would take place easily regardless of the orientation of the coupling device 1.

The invention is not limited to the precise features of the embodiment described and described herein, as alternative solutions may be readily suggested by those skilled in the art.

The invention is also not limited to use with a helically twisted wire of the type described in British Patent No. 1,282,830 in the applicant's name, since placing a plastic sleeve in a coupling device so any sharp edges that may occur at the end of the pipe cannot damage the wires.

Claims (1)

* ♦ 60793 Claim Coupling device for a helically wound tube (4, 5) lined with plastic material (4), which coupling device comprises on the one hand a tubular part (1) with an angular notch delimiting the circumferential tongue (13) at one end and a proximal free end members (11) cooperating with a member such as a wall or the like, on the other hand a ring (1 * +) adapted to radially surround the tubular part (1) outside the tongue (13) and having a clamping screw (15) communicating with the tongue (13) ) for pressing this into contact with a tube (4, 5), the end of which is inserted into the tubular part (1), the tubular part (1) being fitted with a sleeve (3) of plastic material located at one end close to the wall of the tubular part (1) near and with a flange (16) at its end, which seals tightly on the free end of the tubular part (1), characterized in that the sleeve (3) at its opposite end is h smaller in diameter, together with the tubular part (1) limiting the annular space for the inner liner (4) from which water can escape through the drain holes (2) so that the pipes (6) or the like in the pipe are protected against moisture and wear and access through the switching device is prevented. For the purpose of screwing down the lint (4, 5) with envelopes (4) of plastic material, of which there is an unrestricted use of the form (1) 13) and in the case of other organs, free from organs (11) for the purpose of the internal organs, exemptions and restrictions on the use of organs (14) without the use of other organs (1) tungan (13) och uppärär en klämskruv (15) som star i förbindelse med tungan (13) för att pressa denna till anliggning mot ett hölje (4, 5), stem not for use with the rake form (1), colors and sleeves (3) the plastic material is anodized in the form of a form (1), the silk sleeve is attached to the form of a form in the case (1), the sleeve is attached to the form of the form (1) fria ände, kännetecknat av att hylsan