GB2288080A - Box with earthing strip - Google Patents
Box with earthing strip Download PDFInfo
- Publication number
- GB2288080A GB2288080A GB9504092A GB9504092A GB2288080A GB 2288080 A GB2288080 A GB 2288080A GB 9504092 A GB9504092 A GB 9504092A GB 9504092 A GB9504092 A GB 9504092A GB 2288080 A GB2288080 A GB 2288080A
- Authority
- GB
- United Kingdom
- Prior art keywords
- box
- adaptable
- earthing strip
- box according
- strip
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
An adaptable box (1) for the mounting of electrical devices is disclosed. The box is constructed of metal and has a wall (6, 7) extending upwardly from a base member (5). A lid (3) is provided to seal the box. A plurality of earth wires from the various electrical devices are connected to an earthing strip (11). The strip (11) is pressed inwardly from one of the side walls. The wires are attached by means such as thread forming screws or nuts and bolts. <IMAGE>
Description
CONDUIT FITTING
This invention relates to an adaptable box for mounting electrical devices, such as a terminal box or junction box, of the kind which is constructed from metal and in which a mouth defined by the open end of a wall upstanding from a base is adapted to be closed by a removable metal lid.
Boxes of the kind set forth are provided with an earth wire connection, normally in the form of a bolt screwed through a lug pieced from, or otherwise co-operating with, the base of the box. When several wires are to be earthed, difficulty is experienced in connecting all the earth wires to the single earth wire connection due to the substantial total volume of the wires to be accommodated under a relative small lug.
According to our invention, in an adaptable box of the kind set forth an elongate earthing strip projecting inwardly from the upstanding wall is provided with a plurality of earth connections.
This enables separate earth wires individually to be connected to the box at different locations, thereby facilitating the installation of plurality of earth wires.
When the box is of rectangular outline and of pressed metal the strip may be pressed inwardly from a side or end section of the upstanding wall, and may extend substantially between opposite ends of that section.
Conven'iently the strip is inclined inwardly and downwardly from the outer edge of the said section of the wall.
The earthing connections comprises suitable fastenings, for example nuts and bolts, or thread forming screws, co-operating with the plurality of longitudinally spaced openings in the strip.
One embodiment of our invention is illustrated in the single Figure of the accompanying drawings which is a perspective view of an adaptable box for mounting electrical devices.
The adaptable box illustrated in the accompanying drawings comprises a pressed metal body 1, suitably of stainless steel having an upper, open, mouth 2 adapted to be closed by an detachable lid 3, also of pressed stainless steel. The mouth 2 is defined by the open outer end of a continuous peripheral wall 4 which is upstanding from an oblong rectangular base 5 and which comprises spaced parallel end wall portions 6, and side wall portions 7. The outer edges of the side wall portions 6 and 7 are contiguous with inturned flanges which define a continuous lip 9 lying in a plane parallel with a plane containing the base 5. Tapped holes 10 in the four corners of the lip 9 are adapted to receive screws by means of which the lid 3 is secured to the body 1 to close the mouth 2.
The flange extending inwardly from the outer edge of one of the side wall portions 7 is also extended inwardly by a further distance to define an inwardly directed portion which is deformed inwardly at an acute angle with respect to the side wall portion 7 to form an elongate earthing strip 11. The strip 11 is provided with a plurality of openings to form earth connections. Conveniently the openings are arranged in three sets, 12, 13, and 14, containing two, three, and two, openings respectively.
Earthing wires, (not shown), can be attached to the earthing strip by suitable fastening means, conveniently nuts and bolts, or thread forming screws, co-operating with the openings. By inclining the earthing strip 11 as described above, screw driver access into the box is not impeded by the presence of the opposite side wall portion 7, and the blade of the screw driver can be applied to the fastening means in an axial direction.
Claims (9)
1. An adaptable box of the kind set forth in which an elongate earthing strip projects inwardly from the upstanding wall, and the earthing strip is provided with a plurality of earth connections.
2. An adaptable box according to claim 1 which is rectangular.
3. An adaptable box according to any preceding claim in which the box is of pressed metal.
4. An adaptable box according to claims 2 and 3 in which the earthing strip is pressed inwardly from a side or end section of the upstanding wall.
5. An adaptable box according to claim 4 in which the upstanding wall extends substantially between opposite ends of that section.
6. An adaptable box according to claim 4 or claim 5 in which the earthing strip is inclined inwardly and downwardly from the outer edge of said section of the wall.
7. An adaptable box according to any preceding claim in which the earth connections comprise thread forming screws, which co-operate with openings in the earthing strip.
8. An adaptable box according to any of claims 1 to 6 in which the earth connections comprise nuts and bolts, which co-operate with openings in the earthing strip.
9. An adaptable box of the kind set forth substantially as described herein with reference to and as illustrated in the accompanying drawing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9404279A GB9404279D0 (en) | 1994-03-05 | 1994-03-05 | Conduit fitting |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9504092D0 GB9504092D0 (en) | 1995-04-19 |
| GB2288080A true GB2288080A (en) | 1995-10-04 |
| GB2288080B GB2288080B (en) | 1997-07-02 |
Family
ID=10751362
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9404279A Pending GB9404279D0 (en) | 1994-03-05 | 1994-03-05 | Conduit fitting |
| GB9504092A Expired - Fee Related GB2288080B (en) | 1994-03-05 | 1995-03-01 | Box for mounting electrical devices |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9404279A Pending GB9404279D0 (en) | 1994-03-05 | 1994-03-05 | Conduit fitting |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB9404279D0 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3210458A (en) * | 1963-01-30 | 1965-10-05 | Union Insulating Co | Insulated outlet box with grounding strap |
-
1994
- 1994-03-05 GB GB9404279A patent/GB9404279D0/en active Pending
-
1995
- 1995-03-01 GB GB9504092A patent/GB2288080B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3210458A (en) * | 1963-01-30 | 1965-10-05 | Union Insulating Co | Insulated outlet box with grounding strap |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2288080B (en) | 1997-07-02 |
| GB9504092D0 (en) | 1995-04-19 |
| GB9404279D0 (en) | 1994-04-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19990301 |