GB2212342A - Cable entry sealing - Google Patents
Cable entry sealing Download PDFInfo
- Publication number
- GB2212342A GB2212342A GB8726139A GB8726139A GB2212342A GB 2212342 A GB2212342 A GB 2212342A GB 8726139 A GB8726139 A GB 8726139A GB 8726139 A GB8726139 A GB 8726139A GB 2212342 A GB2212342 A GB 2212342A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cable
- capsule
- hole
- interior
- communication circuit
- 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.)
- Withdrawn
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
- H02G15/00—Cable fittings
- H02G15/013—Sealing means for cable inlets
-
- 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
- H02G3/08—Distribution boxes; Connection or junction boxes
- H02G3/081—Bases, casings or covers
- H02G3/083—Inlets
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)
- Installation Of Indoor Wiring (AREA)
Abstract
A hole 40 in a wall 21 of a casing 20 to be penetrated by a cable 30 includes an annular flange 42 formed integrally with the wall and having a thickness less than the thickness of the wall. A membrane 45 (Figure 3) covers the orifice of the flange 42 before penetration by a cable 30, to isolale the interior of the casing 20 from the exterior thereof. When the cable 30 penetrates the membrane the cable 30 is closely squeezed by the flange 42 and thereby the interior of the casing 20 is maintained closed and therefore free from pollution, for example by dust, and from ingress of moisture. (Figures 3 and 4). <IMAGE>
Description
A TOTALLY ENCLOSED COMMUNICATION CIRCUIT CAPSULE HAVING A HOLE
THEREIN FOR A CABLE
The present invention relates to a totally enclosed communication circuit capsule having a hole therein for a cable, of the kind in which the cable passes closely through the hole, thereby to keep the interior of the capsule as free as possible from pollution, for example by dust, and the ingress of moisture.
A known communication circuit capsule of this kind and available on the market, such as a terminal block for a telephone set and control panel, is shown in Figure 1 of the accompanying drawings and has a cutting 12 in the form of a cross made in a wall 11 of the capsule 10 through which a cable 13 can penetrate into the interior of the capsule 10. In order to allow the cable to penetrate through the cutting 12, the width of the cutting 12 is greater thar the diameter of the cable and so a gap 14 exists between the cutting 12 and the cable 13. Although the cutting 12 is better than a circular hole in performance, the gap 14 formed between the cutting and the cable reduces the effectiveness of sealing against pollution and the ingress of moisture.
An object of the invention is mainly to provide a modified structure of cable hole which is more effective against pollution and the ingress of moisture than the cutting of the known structure at present available on the market.
According to the present invention, a totally enclosed communication circuit capsule having a wall containing a hole to be penetrated by a cable comprises an annular flange formed as an integrated part of the capsule and extending from the wall of the hole and having a thickness less than the depth of the hole and a membrane covering the orifice of the flange to isolate the interior of the capsule from the exterior thereof, the interior thereby being free from pollution and ingress of moisture, the totally enclosed communication circuit capsule being used in such a manner that when a cable penetrates through the membrane into the interior of the capsule the cable will be closely squeezed by the flange of the hole, thereby to maintain the interior of the capsule closed and free from pollution and the ingress of moisture.
The size and number of the cable holes can be varied to fit specific requirements of one or more cables of different diameters.
The invention is now described with reference to the accompanying drawings, in which:
Figure 1 is a perspective view of a known communication circuit capsule having a cutting in a wall thereof through which the cable is penetrated;
Figure 2 is a perspective view of an embodiment of a communication capsule in accordance with the present invention;
Figure 3 is a cross-sectional view taken on the line A-A in Figure 2, and
Figure 4 is a perspective, part-sectioned view of the embodiment shown in Figures 1 and 2 of the present invention showing a cable penetrated into the communication capsule.
In accordance with the present invention, a totally enclosed communication capsule circuit as shown in Figures 2-4 of the accompanying drawings is formed of plastics material, as an integrated part, by an injection process and has a rectangular shape or any other specific formation and which includes inside the capsule a communication circuit element. This communication element is connected to other structure of a communication circuit by cable.
The totally enclosed communication circuit capsule 20 has a wall 21 containing cable holes 40,50 of different diameter. The cable hole 40 which pierces the wall 21 of the totally enclosed communication circuit capsule has an annular flange 42 extending inwardly from the bounding wall 41 of the cable hole 40. The thickness of the flange 42 is less than the depth of the cable hole 40 and the orifice 45 of the flange 42 is covered by a membrane 44.
When the totally enclosed communication circuit capsule 20 is not in use, the membrane 44 closes the orifice 45 of the cable hole 40 to keep the interior of the totally enclosed communication circuit capsule 20 free from pollution and moisture. When the totally enclosed communication circuit capsule 20 is in use, the cable 30, which can be multi-cored, penetrates through the membrane 44 of the cable hole 40 into the interior of the capsule. Because the;diameter of the orifice 45 is smaller than the diameter of cable 30, the flange 42, by means of its elasticity, squeezes the cable 30 penetrated through the hole 40. This structure leaves no gap between the cable 30 and the cable hole 40 so that tne effective sealing against pollution by, for example, dust and the ingress of moisture can be expected. Other holes 50 provided i the wall 21 are similarly closed by penetrating cables or if the are not in use by closing membranes.
Claims (2)
1. A totally enclosed communication circuit capsule having
a wall containing a hole to be penetrated by a cable
comprising an annular flange formed as an integrated part
of the cubicle and extending from the wall of the hole and
having a thickness less than the depth of the hole and a
membrane covering the orifice of the flange to isolate the
interior of the capsule from the exterior thereof, the
interior thereby being free from pollution and ingress of
moisture, the totally enclosed communication circuit capsule
being used in such a manner that when a cable penetrates
through the membrane into the interior of the capsule the
cable will be closely squeezed by the flange of the hole,
thereby to maintain the interior of the capsule closed
and free from pollution and the ingress of moisture.
2. A totally enclosed communication circuit capsule constructed
and arranged substantially as described herein with
reference to and as shown in Figures 2-4 of the
accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8726139A GB2212342A (en) | 1987-11-07 | 1987-11-07 | Cable entry sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8726139A GB2212342A (en) | 1987-11-07 | 1987-11-07 | Cable entry sealing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8726139D0 GB8726139D0 (en) | 1987-12-09 |
| GB2212342A true GB2212342A (en) | 1989-07-19 |
Family
ID=10626615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8726139A Withdrawn GB2212342A (en) | 1987-11-07 | 1987-11-07 | Cable entry sealing |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2212342A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2270940A3 (en) * | 2009-06-30 | 2014-05-28 | Dafa A/S | Membranous shield |
| EP2785164A1 (en) | 2013-03-28 | 2014-10-01 | Bull Sas | Computer bay |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB776573A (en) * | 1954-04-24 | 1957-06-12 | Busch Jaeger Duerener Metall | An improved case for the watertight enclosure of electric switches, junction boxes and like electrical apparatus |
-
1987
- 1987-11-07 GB GB8726139A patent/GB2212342A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB776573A (en) * | 1954-04-24 | 1957-06-12 | Busch Jaeger Duerener Metall | An improved case for the watertight enclosure of electric switches, junction boxes and like electrical apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2270940A3 (en) * | 2009-06-30 | 2014-05-28 | Dafa A/S | Membranous shield |
| EP2785164A1 (en) | 2013-03-28 | 2014-10-01 | Bull Sas | Computer bay |
| FR3004063A1 (en) * | 2013-03-28 | 2014-10-03 | Bull Sas | COMPUTER RACK |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8726139D0 (en) | 1987-12-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |