EP0220977A2 - Stiftkontaktverriegelungsvorrichtung für Messgerät - Google Patents

Stiftkontaktverriegelungsvorrichtung für Messgerät Download PDF

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Publication number
EP0220977A2
EP0220977A2 EP86402078A EP86402078A EP0220977A2 EP 0220977 A2 EP0220977 A2 EP 0220977A2 EP 86402078 A EP86402078 A EP 86402078A EP 86402078 A EP86402078 A EP 86402078A EP 0220977 A2 EP0220977 A2 EP 0220977A2
Authority
EP
European Patent Office
Prior art keywords
plug
locking device
tongue
housing
articulation
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
EP86402078A
Other languages
English (en)
French (fr)
Other versions
EP0220977B1 (de
EP0220977A3 (en
Inventor
Istvan Szoboszlai
Christian Roucher
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.)
ITT Composants et Instruments SA
Original Assignee
ITT Composants et Instruments SA
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 ITT Composants et Instruments SA filed Critical ITT Composants et Instruments SA
Publication of EP0220977A2 publication Critical patent/EP0220977A2/de
Publication of EP0220977A3 publication Critical patent/EP0220977A3/fr
Application granted granted Critical
Publication of EP0220977B1 publication Critical patent/EP0220977B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
    • 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
    • H01R13/627—Snap or like fastening
    • H01R13/6271—Latching means integral with the housing

Definitions

  • the present invention relates to a locking device for retaining an electrical connection plug inserted in a measuring device.
  • locking devices In the field of electrical connection means, there are known locking devices generally constituted by an elastic element integral with the device and cooperating by its shape with a part of the plug, to retain it. This element can be elastically deformed to release the plug.
  • Measuring devices generally have two leads terminated by plugs on the device side and probes on the measuring point side.
  • the plugs of these cords are plugged into two or more sockets provided in the device housing. These plugs are held in place by the friction between the plug and socket connection members.
  • connection members can be damaged, on the other hand, the connection can be released unexpectedly.
  • locking means for retaining the plugs of measuring devices is therefore desirable.
  • the locking device is not always necessary and one should avoid providing a special version of the device _incorporating a locking device.
  • the tightness of the case must obviously be preserved. It is also necessary to keep the aesthetics of the device.
  • the locking device in itself, must be reliable and inexpensive.
  • the invention therefore provides a locking device that meets all of these conditions in a particularly original manner.
  • the locking device of the invention is a tongue associated with the device by a hinge and arranged transversely in front of the orifice of the socket receiving the plug, this tongue being provided with a recess through which the plug passes, the edge opposite the joint cooperates with part of the plug.
  • the tongue acts as a link at least partially surrounding the plug and working in traction when the cord is pulled, the engagement of the edge of the tongue on the plug increasing with the tensile force, so the plug is retained reliably.
  • the articulation is a bent part, one end of which supports the tongue at a certain distance from the surface of the housing of the device, the other end of this bent part extending towards this surface.
  • the deformations of the bent part will allow the tongue to move elastically, for unlocking and locking.
  • a push button associated with the joint.
  • a device having several sockets each will be provided with locking means by providing several tongues each associated by an articulation with a common locking adapter.
  • This one com-. will take fixing means for removable mounting on the housing.
  • the whole of the locking device could finally take the form of a piece of molded plastic material adaptable to the housing of a device usable without this piece, of which it will constitute an inexpensive accessory.
  • the device of FIG. 1 is a conventional measuring device in which a housing 1, in two parts, 2 and 3, is recognized, between which there is a recess 4 marking the joint plane, the screen 5 of a display digital and range switch 6.
  • the locking device 7 hides the orifices of four connection sockets for cords.
  • This device comprises two wings, 8 and 9, joined by a cross member 10 and constituting a de-locking adapter carrying the four tabs 11, 12, 13, 14 corresponding to the four sockets.
  • These four tabs are provided with recesses 15, 16, 17, 18 in which the plugs of the cords are inserted as required.
  • the tabs are used to retain the cards as we will now see with reference to Figures 2 and 3.
  • FIG. 3 showing the end of the housing 1, in longitudinal section through the axis of the recess 18 of the tongue 14. We therefore find the upper (3) and lower (2) parts of the housing 1 , as well as the step 4 materializing the joint plane between these two parts.
  • a cylindrical body 19 containing a socket 20 In the upper part 3 of the housing is mounted a cylindrical body 19 containing a socket 20.
  • the socket 20 is made of conductive metal and is extended by a pin 21 passing through the bottom of the body 19 in a sealed manner.
  • FIG. 3 also illustrates a plug 30 essentially comprising a body 31 and a pin 32.
  • the plug body is made of insulating plastic, while the pin 32, of conductive metal, is connected, in a manner not shown, to the internal conductor of the cord. 34.
  • the external surface 33 of the pin 32 adapts to the internal surface 22 of the socket 20 for appropriate electrical contact.
  • this plug 30 has two circular grooves 35, 36 which, in the absence of the locking device 7, would remain outside the housing 1 to materialize the depth of insertion of the plug and offer a grip by facilitating the manual extraction.
  • the locking device 7 With the tongue 14 and the cross-member 10.
  • the latter bears against part 3 of the housing and includes a rib 37, which may be only partial, fitting in in the recess 4.
  • the locking device also comprises a rib 38, perpendicular to the rib 37, cooperating with a groove 39 in the part 3 of the housing 1, at the two ends of the device.
  • These means allow the removable mounting of the device 7 on the housing 1 by engagement and sliding of the ribs 38 in the grooves 39 until the rib 37 snaps into the recess 4, situation illustrated in Figure 1.
  • the shape in dovetail of the ribs 38 and of the grooves 39 is such that the device 7 can only be separated from the housing 1 by a vertical force from the bottom up which cannot happen accidentally.
  • the tongue 14 (fig. 3) is associated with the cross-member 10 by an articulation 40 comprising a bent part, one end 41 of which supports the tongue 14, in its extension and the other end 42 of which extends towards the surface 43 of the housing 1 and is extended beyond by the crosspiece 10.
  • this bent part are such that the tongue 14, at rest, in the position shown in particular in Figures 1 and 3, is parallel to the surface 43 of the housing in which the connection sockets are arranged, at a certain distance from this one.
  • This articulation 40 further carries a projection pushing 44. By pushing on the push 44 towards the end of the tongue 14, the plug 30 can be unlocked as will be seen later.
  • the recess 18 of the tongue 14 is eccentric relative to the sleeve body 19, as can be seen by comparing the two halves of Figure 2 and observing the sectional view of Figure 3.
  • the edge 45 of this recess opposite the articulation 40, therefore encroaches on the orifice of the sleeve body 19.
  • the recess 18 comprises a chamfer 46 on the side of the edge 45.
  • FIG. 2 at the same time as FIG. 1, it can be seen that the tongues, flat and parallel, are also aligned with the upper edge of the wings 7, 9, forming a thin block which covers the angle of the device housing without breaking the line. Between these tabs and wings, the slots such as 50 are wide enough to avoid jamming, but lateral teeth such as 51 make it possible to limit any lateral movement. These provisions satisfy both mechanical needs and aesthetic concerns.
  • the entire device 7, as shown, can be made in a single piece of molded plastic and of low cost.
  • the only modification made to the device is the ad junction of the grooves 39 in the mass of the housing, so that the tightness of this housing, in particular, is in no way affected.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
EP86402078A 1985-09-23 1986-09-23 Stiftkontaktverriegelungsvorrichtung für Messgerät Expired - Lifetime EP0220977B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8514046A FR2587849B1 (fr) 1985-09-23 1985-09-23 Dispositif de verrouillage de fiche pour appareil de mesure
FR8514046 1985-09-23

Publications (3)

Publication Number Publication Date
EP0220977A2 true EP0220977A2 (de) 1987-05-06
EP0220977A3 EP0220977A3 (en) 1988-07-13
EP0220977B1 EP0220977B1 (de) 1992-03-11

Family

ID=9323140

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86402078A Expired - Lifetime EP0220977B1 (de) 1985-09-23 1986-09-23 Stiftkontaktverriegelungsvorrichtung für Messgerät

Country Status (6)

Country Link
US (1) US4687271A (de)
EP (1) EP0220977B1 (de)
JP (1) JPS62110281A (de)
KR (1) KR870003590A (de)
DE (1) DE3684233D1 (de)
FR (1) FR2587849B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2637153A1 (fr) * 1988-09-27 1990-03-30 Itt Composants Instr Appareil electrique a compartiment de pile perfectionne
FR2637152A1 (fr) * 1988-09-27 1990-03-30 Itt Composants Instr Boitier etanche, notamment pour un appareil electrique

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4861276A (en) * 1988-02-25 1989-08-29 Hayes Microcomputer Products, Inc. Adaptor with notched strain relief plate
DE4438239C1 (de) * 1994-10-26 1996-06-05 Mueller & Weigert Batteriebetriebenes Meßgerät, insbesondere Zangenanlegegerät
US6676428B2 (en) * 2001-02-28 2004-01-13 Burton Technologies, Llc Securing device for electrical connectors
US7686930B2 (en) * 2005-02-25 2010-03-30 Thermo Orion, Inc. Secure meter
US8944844B2 (en) * 2013-01-18 2015-02-03 Tyco Electronics Corporation Connector mating assurance

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1928580A (en) * 1928-05-15 1933-09-26 Douglas K Warner Apparatus for cooling
GB580821A (en) * 1944-04-04 1946-09-20 Dunlop Rubber Co An improved electric connection device of the plug and socket type
GB896119A (en) * 1959-07-21 1962-05-09 Burndy Corp Locking terminal block
US3046513A (en) * 1961-01-30 1962-07-24 Gen Electric Detachable electrical connector
US3643205A (en) * 1969-10-13 1972-02-15 Bunker Ramo Telephone handset connector
US3659248A (en) * 1970-05-04 1972-04-25 Gen Electric Combined socket cover and plug retainer
DE2308294C3 (de) * 1973-02-16 1980-09-11 Cavis - Cavetti Isolati S.P.A., Felizzano, Alessandria (Italien) Steckverbindung für Lichtleitkanal
US3874763A (en) * 1973-11-26 1975-04-01 Amp Inc Plug for patch systems
US4227762A (en) * 1979-07-30 1980-10-14 Vaughn Corporation Electrical connector assembly with latching bar
US4319733A (en) * 1980-01-22 1982-03-16 Amp Incorporated Locking spring clip
DE3105808A1 (de) * 1981-02-18 1982-09-09 Stocko Metallwarenfabriken Henkels Und Sohn Gmbh & Co, 5600 Wuppertal Elektrischer steckverbinder
US4407556A (en) * 1981-09-21 1983-10-04 Teletype Corporation Retaining clip for an electrical connector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2637153A1 (fr) * 1988-09-27 1990-03-30 Itt Composants Instr Appareil electrique a compartiment de pile perfectionne
FR2637152A1 (fr) * 1988-09-27 1990-03-30 Itt Composants Instr Boitier etanche, notamment pour un appareil electrique
EP0366507A1 (de) * 1988-09-27 1990-05-02 Itt Composants Et Instruments Elektrisches Gerät mit verbessertem Batteriefach

Also Published As

Publication number Publication date
DE3684233D1 (de) 1992-04-16
US4687271A (en) 1987-08-18
KR870003590A (ko) 1987-04-18
JPS62110281A (ja) 1987-05-21
EP0220977B1 (de) 1992-03-11
FR2587849B1 (fr) 1989-11-10
FR2587849A1 (fr) 1987-03-27
EP0220977A3 (en) 1988-07-13

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