EP1599922A1 - Fiche de contact - Google Patents

Fiche de contact

Info

Publication number
EP1599922A1
EP1599922A1 EP04709583A EP04709583A EP1599922A1 EP 1599922 A1 EP1599922 A1 EP 1599922A1 EP 04709583 A EP04709583 A EP 04709583A EP 04709583 A EP04709583 A EP 04709583A EP 1599922 A1 EP1599922 A1 EP 1599922A1
Authority
EP
European Patent Office
Prior art keywords
dismounting device
casing
contact plug
end part
contact
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Withdrawn
Application number
EP04709583A
Other languages
German (de)
English (en)
Inventor
Tom Christensen
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1599922A1 publication Critical patent/EP1599922A1/fr
Withdrawn legal-status Critical Current

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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/633—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only
    • H01R13/6335—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only comprising a handle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/28—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable

Definitions

  • the invention relates to a contact plug of the kind which is adapted to be mounted on e.g. an electric wire and which comprises a casing, at least two contact pins projecting from the casing for detachably engaging complementarily shaped female connectors, a dismounting device having first and second end parts and mounted in the casing displaceably between a first position in which the second end part is at least mainly received in the casing, and a second position in which the second end part is pushed out of the casing on the same side as the contact pins, and an actuator for displacing the dismounting device from the first to the second position by means of application of force on the first end part of the dismounting device.
  • a tightly coupled electrical connection between such male and female connections is furthermore difficult to disconnect by means of only one hand.
  • a contact plug having a T-shaped dismounting device and a pivotally mounted actuator is known from the German Patent Publication DE 195 13 170 Al .
  • the dismounting device has a pressure plate for pushing the contact plug free of a socket in which the contact plug is mounted.
  • the force with which the actuator must be loaded is distributed across the entire pressure plate, and a relatively large force must therefore be used to push free the contact plug.
  • the pressure plate occupies a part of the space between the contact plug and the socket or electric outlet in use, and the contact plug must therefore be shaped with especially long contact pins to make sure that the necessary electrical contact is present.
  • the contact pins are extending through holes in the pressure plate, and impurities deposited between the pressure plate, the contact pins and the casing of the contact plug will prevent the dismounting device from returning to the contact plug when this contact plug is mounted in electrical connection with the socket.
  • the present invention provides a contact plug which can be pulled free of a female connector by means of little strength.
  • a contact plug is provided, which can be pulled free of a female connector without damaging the connectors or the electric installation.
  • the novel and unique feature by means of which this is achieved according to the invention is a hollowing made in the casing on the opposite side of the contact pins for at least partly receiving the actuator in the second position of the dismounting device and having a depth allowing the first end part of the dismounting device to extend into the hollowing in the first position of the dismounting device.
  • the distance which the dismounting device is extending into the hollowing will advantageously lift the actuator sufficiently free of the hollowing so that the actuator can be operated manually when the contact plug is to be disconnected from the female connector.
  • the contact plug and the female connector can be disengaged in an especially easy manner if the first part of the dismounting device is extending into the hollowing in the first position by a length corresponding to or longer than the depth of the hollowing.
  • the hollowing can be a groove extending transversely of the dismounting device.
  • An actuator made as an arm with a first end pivotally mounted in the groove and a second end located outside the groove in the first position of the dismounting device can advantageously be completely or partly received in the groove in the second position of the dismounting device in a simple manner .
  • the arm can, at a first end, be pivotally suspended in the hollowing in a plane intersecting a plane through the dismounting device parallel to the longitudinal axis of this dismounting device so that the arm will hit the dismounting device when it is pivoted into the groove and affect this dismounting device with a sufficiently large force to overcome the engagement between the connectors .
  • the second end of the arm will be free of the groove in the first position of the dismounting device and can be manually affected by means of e.g. a finger so that a co pressive force can be transmitted to the point of application between the arm and the dismounting device by an exchange of force.
  • the hollowing can be made as a channel extending from the open into the casing, possibly straight through this casing, in a direction preferably transversely of the dismounting device, whereas the actuator is shaped as a slide displaceably mounted in this channel.
  • the slide can easily be operated by displacing the slide, by a force application in form of a pressure by a finger on the first slide end which is projecting from the channel, to an activation position in which the slide is pushed a distance into the channel and has displaced the dismounting device during this to the second position of this dismounting device.
  • the dismounting device can advantageously extend parallel to the pins and be actuated by actuating the actuator with only one hand. In case the dismounting device is located between the contact pins, these pins will serve to protect the dismounting device from being bent when it is projecting between the contact pins. However, the dismounting device can be located on any plane in the casing where a sufficiently long arm can be obtained to provide the necessary application of force to displace the dismounting device from its first to its second position.
  • the fit of the dismounting device displaceably mounted in the casing can be such that a friction or clamp force secures the dismounting device in unloaded state.
  • the dismounting device can be removed from the contact plug if the contact plug is to be used as a conventional contact plug. This might e.g. be the case if the contact plug is to be used in a permanent installation instead of a temporary one.
  • the second end part of the dismounting device can optionally have a pressure base received in a recess in the casing in the first position.
  • the pressure base can have an extent not exceeding the distance between the contact pins .
  • the slide can be bevelled in the area of contacting the dismounting device at a not self-locking angle with the longitudinal direction of the dismounting device.
  • This angle can be between 30 and 60° but will preferably be between 40 and 50°.
  • the force is transmitted from the actuator to the dismounting device across a relatively large face of contact, whereby an effective functioning of the dismounting mechanism is ensured and the wear on its working parts is minimal.
  • Fig. 1 is a perspective view of a first embodiment of a contact plug according to the invention with the dismounting device in a second position and of a fraction of a socket to which the contact plug is to be coupled.
  • Fig. 2 shows the contact plug in fig. 1 but with the dismounting device in a first position when the contact plug is coupled to the socket.
  • Fig. 3 is a diagrammatic, partly sectional view taken along the line III-III of fig. 1.
  • Fig. 4 is a diagrammatic, partly sectional view taken along the line IV-IV of fig. 2.
  • Fig. 5 is a perspective view of a second embodiment of a contact plug according to the invention with the dismounting device in second position and of a fraction of a socket to which the contact plug is to be coupled.
  • Fig. 6 shows the contact plug in fig. 5 but with the dismounting device in first position in which the contact plug is coupled to the socket.
  • Fig. 7 is a diagrammatic, partly sectional view taken along the line VII-VII of fig. 5.
  • Fig. 8 is a diagrammatic, partly sectional view taken along the line VIII-VIII of fig. 6.
  • Fig. 9 is a diagrammatic, partly sectional view through a third embodiment in a second position.
  • Fig. 10 is a diagrammatic view of the embodiment in fig. 9 in first position.
  • Figs. 1 and 2 show a first embodiment of a contact plug according to the invention, designated generally by the reference numeral 1.
  • the contact plug is guided in the direction of the arrow a in fig. 1 to engage a female connector 2 in a conventional socket generally designated by the reference numeral 3.
  • the contact plug has been coupled to the socket 3. This is not in itself part of the invention and will therefore not be described in detail.
  • the contact plug 1 has a casing 4, two contact pins 5,6, an electric wire 7 mounted in the casing 4, a hollowing in form of a groove 8 made in the casing 4 opposite the pins 5,6, and an actuator arm 9 located in the groove 8.
  • the arm 9 is pivotally mounted about a swivelling axis 10 at the first end 11 of the arm, and it has a second end 12 completely received in the groove 8 in fig. 1.
  • the contact plug 1 has an elongated dismounting device 13 having a first end part 14 and a second end part 15 which has a pressure base 16 which, in fig. 2, is received in a recess 17 in the face of contact 18 of the casing 4, the contact pins are projecting from this face of contact.
  • the dismounting device 13 between the contact pins 5,6 is extending, in the second position in fig. 1, a distance x out from the casing 4.
  • this distance x corresponds to the distance by which the first end part 14 of the dismounting device 13 maximally lifts the arm 9 out of the groove 8 in the first position of the dismounting device 13 in fig. 2.
  • the arm 9 is pressed down into the groove 8 by a force F , whereby the force is transmitted to the first end part 14 of the dismounting device 13 by an exchange of force.
  • This exchange of force corresponds to the ratio of the distance from the point of application between the arm 9 and the dismounting device 13 to the second end 12 of the arm 9 to the distance from said point of application to the swivelling axis 10 of the arm.
  • Figs. 5 and 6 show a second embodiment of a contact plug 20 according to the invention mounted on a contact wire and for coupling with a socket 2.
  • the contact plug 20 consists of a casing 21, two contact pins 22,23, a dismounting device 24, and a slide 25.
  • the dismounting device 24 has a first end 26 with a bevel 27 of about 45° and a second end 28.
  • the dismounting device 24 is located between the contact pins 22,23 and is extending parallel to these pins.
  • the slide has a first free end 29 and a second end 30 received in the channel 31.
  • the contact plug 20 is mounted in the direction of the arrow b in the female connector 3 in the socket 2, which is shown in detail in figs. 7 and 8, the dismounting device 24 being pushed into the casing 21 during this and the free end 29 of the slide 25 being pushed out of the channel 31 in the casing 24.
  • Fig. 7 shows how the slide 25 and the dismounting device 24 mutually affect each other in the second position of the dismounting device 24.
  • the second end 30 of the slide 25 has a bevel 31 with an angle of about 45° corresponding to the angle of the bevel 27 of the dismounting device 24.
  • the first end 29 of the slide 25 is affected by a force F making the bevel 31 on the second end 30 of the slide 25 slide along the bevel 27 on the first end 26 of the dismounting device 24.
  • the dismounting device is displaced a distance out of the casing 21 in direction towards the contact pins 22,23 and is pulling the contact pins 22,23 at least partly free of the female connector 3 during this.
  • Fig. 8 shows how the slide 25 and the dismounting device 24 mutually affect each other in the first position of the dismounting device 24.
  • the female connector 3 affects the second end 28 of the dismounting device 24 with a force N in the first position of the dismounting device. During this, the bevel 27 of the first end 26 of the dismounting device 24 is made to slide towards the bevel 31 of the second end 30 of the slide 25, and it pushes the first end of the slide 25 free of the casing 21.
  • Figs. 9 and 10 show a third embodiment of a contact plug 32 according to the present invention.
  • the contact plug 32 is a modification of the contact plug 1 in figs. 3 and 4. Like parts are similarly referenced.
  • the contact plug 32 has a casing 33, a hollow swinging arm 34, a dismounting device 35, and two contact pins 5,6.
  • the dismounting device has a first end part 36 and a second end part 37 with a pressure base 16 which is received in a recess 17 in the first position of the dismounting device 35.
  • a piece of the wire 7 is passed through the hollow swinging arm 34.
  • This arm has a first end 38 for actuating the dismounting device 35 and a second end 39 for manually actuating the actuator with a force to push the dismounting device from its first to its second position.
  • the swinging arm is swingingly mounted about a swivelling axis 40 in a hollowing 41 in the side of the casing 33 opposite the contact pins 5,6.
  • the swinging arm 34 with the piece of wire 7 is received in the hollowing 41 in the first position of the dismounting device 35 in fig. 10. If the wire is pulled by means of a force F' , the swinging arm 34 will tip, whereby the dismounting device is pushed from the first position in fig. 10 to the second position in fig. 9, in which the contact plug is pulled free or easily can be pulled free of the socket 2.
  • the wire 7 is passed through the swinging arm 34, it acts as a useful extension of the arm z between the centre of rotation 40 and the second end 39 of the swinging arm 34.
  • the wire 7 can advantageously be used for increasing the exchange, by means of which the manual force application on the actuator is transmitted to the dismounting device.
  • This embodiment is especially expedient if the female connector is located in a not very accessible place.
  • the piece of the second end part of the dismounting device projecting from the casing has a length of between 0.2 and 1.2, preferably between 0.6 and 1.1, and especially between 0.8 and 1.0 times the length of the contact pins .
  • the contact plug 1 of figs. 1 and 2 can alternatively be made with the actuator and dismounting device of figs. 7-8, and the contact plug of figs. 5 and 6 can be made with an actuator in form of a swinging arm which is received in the casing.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

L'invention concerne une fiche de contact (1 ; 20 ; 32) montée sur un fil électrique (7) et comprenant un logement (4 ; 21 ; 33), au moins deux broches de contact (5, 6 ; 22, 23) dépassant du logement (4 ; 21 ;33) pour permettre un enfichage amovible avec un connecteur femelle (2) de forme complémentaire, un dispositif de démontage (13 ; 24 ; 36) présentant une première partie d'extrémité (14 ; 26 ; 38) et une seconde partie d'extrémité (15 ; 27 ; 37) est monté dans le logement (4 ; 21 ; 33) de façon mobile entre une première position dans laquelle la seconde partie d'extrémité (15 ; 27 ; 37) est placée au moins majoritairement dans le logement (4 ; 21 ; 33) et une seconde position dans laquelle la seconde partie d'extrémité (15 ; 27 ; 37) est poussée hors du logement (4 ; 21 ; 33) sur le même côté que les broches de contact (5, 6 ; 22, 23), un actionneur (9 ; 25 ; 34) destiné à déplacer le dispositif de démontage (13 ; 24 ; 35) de la première position à la seconde position par application d'une force sur la première partie d'extrémité (14 ; 26 ; 36) du dispositif de démontage (13 ; 24 ; 35), dans ladite seconde position au moins la majeur partie de l'actionneur (9 ; 25 ; 34) est reçue dans une cavité (8 ; 19 ; 41) se trouvant dans le logement (4 ; 21) et le dispositif de démontage (13 ; 24 ; 35) s'étend sur une certaine distance jusque dans la cavité (8 ; 19 ; 41) dans la première position du dispositif de démontage (13 ; 24 ; 35). La fiche de contact (1 ; 20 ; 32) est facile à libérer avec peu de force sans tirer sur le fil (7).
EP04709583A 2003-02-18 2004-02-10 Fiche de contact Withdrawn EP1599922A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DKPA200300246 2003-02-18
DK200300246 2003-02-18
DKPA200400106 2004-01-27
DK200400106 2004-01-27
PCT/DK2004/000093 WO2004075360A1 (fr) 2003-02-18 2004-02-10 Fiche de contact

Publications (1)

Publication Number Publication Date
EP1599922A1 true EP1599922A1 (fr) 2005-11-30

Family

ID=32910020

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04709583A Withdrawn EP1599922A1 (fr) 2003-02-18 2004-02-10 Fiche de contact

Country Status (2)

Country Link
EP (1) EP1599922A1 (fr)
WO (1) WO2004075360A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0416156D0 (en) * 2004-07-20 2004-08-18 Quinn Peter J Ejecto plug
FR2945381B1 (fr) * 2009-05-05 2012-10-19 Legrand France Fiche de connexion electrique comportant des moyens d'extraction orientables
AT513815A1 (de) * 2012-12-27 2014-07-15 Johannes Höfler Netzstecker

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2740618B1 (fr) * 1995-10-25 1998-01-02 Sarl Gestra Prises electriques ejectables
DE29807627U1 (de) * 1998-04-27 1998-09-17 Mantel, Klaus, Dr., 26133 Oldenburg Netzstecker mit eingebautem Ausschiebemechanismus
US6095849A (en) * 1998-10-14 2000-08-01 All-Line Inc. Structure of flat plug
GB2361589A (en) * 2000-04-13 2001-10-24 Thomas Henry Gardner Easy release 3 pin electrical plug

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004075360A1 *

Also Published As

Publication number Publication date
WO2004075360A1 (fr) 2004-09-02

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