GB2266815A - A rotatable fuse holder. - Google Patents

A rotatable fuse holder. Download PDF

Info

Publication number
GB2266815A
GB2266815A GB9209482A GB9209482A GB2266815A GB 2266815 A GB2266815 A GB 2266815A GB 9209482 A GB9209482 A GB 9209482A GB 9209482 A GB9209482 A GB 9209482A GB 2266815 A GB2266815 A GB 2266815A
Authority
GB
United Kingdom
Prior art keywords
fuse
container
socket
holder
fuse holder
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
Application number
GB9209482A
Other versions
GB2266815B (en
GB9209482D0 (en
Inventor
Terence William Thomas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novar ED&S Ltd
Original Assignee
MK Electric Ltd
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 MK Electric Ltd filed Critical MK Electric Ltd
Priority to GB9209482A priority Critical patent/GB2266815B/en
Publication of GB9209482D0 publication Critical patent/GB9209482D0/en
Publication of GB2266815A publication Critical patent/GB2266815A/en
Application granted granted Critical
Publication of GB2266815B publication Critical patent/GB2266815B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/54—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers
    • H01H85/545—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers with pivoting fuse carrier
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/0208—Tools for inserting and removing fuses

Landscapes

  • Fuses (AREA)

Abstract

A fuse holder includes a fuse (2) which is removably mounted in a container (4) which in turn is rotatably mounted in a socket (6), whereby the container is rotatable from a position (L) in which the fuse engages electrical contacts (26, 28) to a position (U) where the fuse can be removed from the holder. The container is preferably rotated by a worm (18) and pinion (16) attached to or part of the container 4, eg. a shaft (10) mounted at one end in a bearing recess. With fuse socket axis 22 radially offset from the axis of rotation 24 of container 4, the latter is rotated through 180 DEG as it is lifted from the lower to the upper position, whereby the contacts 26, 28 may be shielded from the opening through which the fuse is removed. <IMAGE>

Description

Rotatable Fuse Holder The present invention relates to fuse holders suitable for electrical plugs or sockets, but is not restricted to use in such plugs or sockets.
It is known to provide non rewirable plugs with externally accessed fuse holders. In one example a plug base has a fuse holder which comprises a holding member for retaining the fuse and a pair of clips within a recess to engage the end contact caps of the fuse. The holding member has an outer planar face and is slightly smaller than the surrounds of the recess so that a screwdriver or any pointed tool can be inserted at one end to extract the holding member and fuse. tThis can damage the holder and is not vandal resistant. Furthermore the holder relies on the clips to retain the fuse in place and to male electrical contact with the fuse.
A fuse holder suitable for an electrical plug or socket according to the present invention comprises a fuse container rotatably mounted in a socket so as to be movable from a position in which a fuse in the container engages electrical contacts to a position where the fuse can be removed.
Preferably the container is rotated by means of a worm.
In one embodiment the container is mounted in bearings at each end and a pinion is connected to one end of the container. A worm engages with the pinion to rotate the container.
An advantage of the invention is that the fuse container can be made to lock the fuse securely in the holder. When a worm is used to rotate the container, a recess which can only be engaged by a special tool may be provided in the head of the worm or an extension therefrom so as to prevent casual access to the fuse. In this way the fuse holder is resistant to vandalisation.
An embodiment of the invention will now be described by way of example with reference to the accompanying drawings in which: Figure 1 is a plan view of a fuse holder according to the invention, and Figure 2 is a cross section of the fuse holder of Fig.
1 taken on A-A.
In the drawings a fuse 2 of the usual domestic five or thirteen amp cylindrical design is held removably in a fuse socket 3 in a fuse container 4 which is rotatably mounted in a container socket 6 on shafts 8 and 10 between bearings 12 and 14.
The container 4 has a pinion 16 formed as part of or attached to shaft 10 which engages with a worm 18 mounted at one end in a bearing recess 20.
The fuse socket 3 is semi circular in cross section and has an axis 22 radially offset from an axis 24 of rotation of container 4 so that as it is rotated 1800 from a lower position L to an upper position U it lifts the fuse from the lower position to the upper position where the fuse can be removed from the container.
Electrical contacts 26 and 28 are provided either end of the container so that in the lower position of the fuse the contacts 26 and 28 make electrical contact with end contact caps 30 and 32 of the fuse.
In order to remove a fuse from container 4 a suitable tool is fitted into a slot 34 in the head 36 of the worm and the worm 18 is rotated. In turn the pinion 16 rotates container 4 until the fuse socket 3 faces upwards in line with opening 38 of container socket 6. As the fuse 2 is rotated in container 4 the electrical contacts 26 and 28 disconnect electrically from the fuse end contact caps 30 and 32 and because the contacts are mainly offset from the opening 38 and the container shields the opening as it rotates the contacts are not visible from the opening 38.
This enables the fuse holder to be used in a potentially live though switched situation.
The fuse holder is suitable for any electrical plug or socket or indeed any other electrical fitting or appliance.

Claims (4)

1. A fuse holder suitable for an electrical plug or socket comprising a fuse container rotatably mounted in a socket so as to be movable from a position in which a fuse in the container engages electrical contacts to a position where the fuse can be removed.
2. A fuse holder as claimed in claim 1 wherein the container is arranged to be rotated by means of a worm.
3. A fuse holder as claimed in claim 1 or 2 wherein the electrical contacts are positioned either end of the socket and are shielded from exterior access by means at least partially by a part of the container.
4. A fuse holder as substantially as described with reference to the accompanying drawings.
4. A fuse holder as substantially as described with reference to the accompanying drawings.
Amendments to the claims have been filed as follows 1. A fuse holder suitable for an electrical plug or socket comprising a fuse container rotatably mounted in a socket so as to be movable from a position in which a fuse in the container engages electrical contacts to a position where the fuse can be removed wherein the container is arranged to be rotated by means of a worm.
2. A fuse holder as claimed in claim 1 wherein the worm is mounted so as to be at right angles to the axis of the fuse container.
3. A fuse holder as claimed in claim l or 2 wherein the electrical contacts are positioned wither end of the socket and are shielded from exterior access by means at least partially by a part of the container.
GB9209482A 1992-05-01 1992-05-01 Rotatable fuse holder Expired - Fee Related GB2266815B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9209482A GB2266815B (en) 1992-05-01 1992-05-01 Rotatable fuse holder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9209482A GB2266815B (en) 1992-05-01 1992-05-01 Rotatable fuse holder

Publications (3)

Publication Number Publication Date
GB9209482D0 GB9209482D0 (en) 1992-06-17
GB2266815A true GB2266815A (en) 1993-11-10
GB2266815B GB2266815B (en) 1996-04-03

Family

ID=10714881

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9209482A Expired - Fee Related GB2266815B (en) 1992-05-01 1992-05-01 Rotatable fuse holder

Country Status (1)

Country Link
GB (1) GB2266815B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7675739B2 (en) 2006-01-11 2010-03-09 Server Technology, Inc. Fuse module with removable fuse carrier for fused electrical device
US7706134B2 (en) 2006-01-11 2010-04-27 Server Technology, Inc. Power distribution unit and methods of making and use including modular construction and assemblies
US7742284B2 (en) * 2006-01-11 2010-06-22 Server Technology, Inc. Fuse module with movable fuse holder for fused electrical device
US7905749B2 (en) 2005-02-15 2011-03-15 Server Technology, Inc. Ganged electrical outlets, apparatus, and methods of use

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD903607S1 (en) 2019-01-31 2020-12-01 Honeywell International Inc. Rotatable holder for electrical disconnect
USD903606S1 (en) 2019-01-31 2020-12-01 Honeywell International Inc. Rotatable fuse holder

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB574822A (en) * 1943-10-29 1946-01-22 British Mechanical Prod Ltd Improvements in and relating to electrical fuses
GB1078322A (en) * 1965-03-27 1967-08-09 Ford Motor Co Fuse holders
GB1125166A (en) * 1966-04-26 1968-08-28 Clang Ltd Form no. 3
GB1202346A (en) * 1968-05-06 1970-08-12 Philips Electronic Associated Holder for safety fuse
GB2042273A (en) * 1979-02-01 1980-09-17 Lindner Gmbh Electric fuse holder for fuse cartridges
EP0207566A1 (en) * 1985-07-04 1987-01-07 Holec Systemen En Componenten B.V. Pivot for a switching cap, especially for cartridges with knife blades
EP0329318A2 (en) * 1988-02-16 1989-08-23 Connectron, Inc. Switching fusible apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH671651A5 (en) * 1987-03-17 1989-09-15 Schurter Ag

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB574822A (en) * 1943-10-29 1946-01-22 British Mechanical Prod Ltd Improvements in and relating to electrical fuses
GB1078322A (en) * 1965-03-27 1967-08-09 Ford Motor Co Fuse holders
GB1125166A (en) * 1966-04-26 1968-08-28 Clang Ltd Form no. 3
GB1202346A (en) * 1968-05-06 1970-08-12 Philips Electronic Associated Holder for safety fuse
GB2042273A (en) * 1979-02-01 1980-09-17 Lindner Gmbh Electric fuse holder for fuse cartridges
EP0207566A1 (en) * 1985-07-04 1987-01-07 Holec Systemen En Componenten B.V. Pivot for a switching cap, especially for cartridges with knife blades
EP0329318A2 (en) * 1988-02-16 1989-08-23 Connectron, Inc. Switching fusible apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7905749B2 (en) 2005-02-15 2011-03-15 Server Technology, Inc. Ganged electrical outlets, apparatus, and methods of use
US7675739B2 (en) 2006-01-11 2010-03-09 Server Technology, Inc. Fuse module with removable fuse carrier for fused electrical device
US7706134B2 (en) 2006-01-11 2010-04-27 Server Technology, Inc. Power distribution unit and methods of making and use including modular construction and assemblies
US7742284B2 (en) * 2006-01-11 2010-06-22 Server Technology, Inc. Fuse module with movable fuse holder for fused electrical device
US9287688B2 (en) 2006-01-11 2016-03-15 Server Technology, Inc. Power distribution unit and methods of making and use including modular construction and assemblies

Also Published As

Publication number Publication date
GB2266815B (en) 1996-04-03
GB9209482D0 (en) 1992-06-17

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19990501