EP0623974A2 - Verbinder für ein elektrisches Kabel mit Vorrichtung zur Zugentlastung - Google Patents

Verbinder für ein elektrisches Kabel mit Vorrichtung zur Zugentlastung Download PDF

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Publication number
EP0623974A2
EP0623974A2 EP94106656A EP94106656A EP0623974A2 EP 0623974 A2 EP0623974 A2 EP 0623974A2 EP 94106656 A EP94106656 A EP 94106656A EP 94106656 A EP94106656 A EP 94106656A EP 0623974 A2 EP0623974 A2 EP 0623974A2
Authority
EP
European Patent Office
Prior art keywords
clamping member
cable
relieving device
parts
strain relieving
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Withdrawn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
EP94106656A
Other languages
English (en)
French (fr)
Other versions
EP0623974A3 (de
Inventor
Guy Eriksson
Arne Jonsson
Peder TJÄDERHANE
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.)
CEWE AB
Original Assignee
CEWE AB
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 CEWE AB filed Critical CEWE AB
Publication of EP0623974A2 publication Critical patent/EP0623974A2/de
Publication of EP0623974A3 publication Critical patent/EP0623974A3/de
Withdrawn legal-status Critical Current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
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • 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
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/595—Bolts operating in a direction transverse to the cable or wire

Definitions

  • the invention relates to a connector for an electric cable with a tensile strain relieving device according to the precharacterising part of claim 1.
  • the connector comprises a housing which encloses an insulating terminal block with a number of contact members, to which the conductors of a cable, insertable into the housing through an entry opening, can be connected.
  • the connector is provided with a special tensile strain relieving device, such that any tensile strain in the cable is transferred directly to the terminal block and need not be taken up by the screwed connection between the cable conductors and the contact pins or sleeves, which would be unsuitable both from an electrical and a mechanical point of view.
  • a frequently used design of a tensile strain relieving device of the above-mentioned kind consists of a plane or clamp-shaped cap washer, which by means of two screws presses the cable against a seat on one side of the connection housing.
  • the cable has to be fixedly pressed in an eccentric position in relation to the longitudinal axis of the connector. This may entail difficulties, especially in the case of coarse and relatively stiff connection cables. The eccentric position of the cable may also result in leakage in the cable entry opening of the housing.
  • the invention aims at developing a connector for an electric cable with a tensile strain relieving device of the above-mentioned kind which is simpler and less expensive than the devices described in the above-mentioned publications.
  • the invention suggests a connector for an electric cable with a tensile strain relieving device according to the introductory part of claim 1, which is characterized by the features of the characterizing part of claim 1.
  • the clamping member of the strain relieving device is designed with a bottom part, which is connected to an upper part
  • the two parts are adapted, when being folded together over the cable, to automatically enter into locking engagement with each other.
  • the clamping member is connected to the terminal block of the connector via a bendable strip and can advantageously be made integral with the terminal block.
  • a strain relieving clamp of the above-mentioned kind is very simple to handle during mounting, both in an automatic mounting device and during normal use by electricians.
  • the plug shown in Figure 1 comprises a housing 1, preferably of insulating material, enclosing an insulating terminal block 2, to which four contact pins 3 for phase and neutral conductors and one somewhat coarser protective ground pin 4 are fixed.
  • the rear part of the plug housing has a cable entry opening provided with a sealing sleeve 5.
  • a tensile strain relieving device consisting of a clamping member 6 which is connected to the terminal block 2 by way of a bendable strip 7.
  • the strain relieving device is designed integral with the terminal block.
  • the clamping member 6 comprises a bottom part 8 and an upper part 9, which are interconnected through a foldable spacing piece 10 in the form of a thin plastic film, serving as a joint.
  • the upper part 9 is provided with a hook- shaped locking member 11 which, when folding the clamping member over a cable 12, passes through a hole 13 in the bottom part 8 and hooks into the rear side (Fig. 7).
  • a lock catch 14, arranged on the outer end portion of the upper part snaps over a locking edge 15 on the bottom part 8 such that the clamping member cannot open again (Fig. 6).
  • the shown strain relieving clamp In its engaged position, the shown strain relieving clamp is very stable and secures the cable in a reliable manner.
  • the design also provides a possibility of further securing that the clamping member is kept in compressed position by mounting a screw 16 into a hole 17 through the clamping member and/or by providing the plug housing 1 (Fig. 1) with a guide 18 for the clamping member, arranged adjacent the entry opening.
  • the shown strain relieving device can be used for cables with cross-sectional dimensions which may vary within the limits prescribed in current standards for the respective connector.
  • FIG. 8-11 differs from that described above in that the locking members 14, 15 are replaced by a locking screw 19 with a round head 20, mounted in the bottom part 8, as well as a recess 21 provided in the outer end portion of the upper part 9 and adapted to the locking screw.
  • the lock catch 11 of the upper part will pass through the hole 13 in the bottom part 8 and hook onto the rear side, in the same way as with the embodiment described above (Fig.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP94106656A 1993-05-03 1994-04-28 Verbinder für ein elektrisches Kabel mit Vorrichtung zur Zugentlastung. Withdrawn EP0623974A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9301508 1993-05-03
SE9301508A SE505617C2 (sv) 1993-05-03 1993-05-03 Dragavlastningsanordning för elkabel i anslutningsdon

Publications (2)

Publication Number Publication Date
EP0623974A2 true EP0623974A2 (de) 1994-11-09
EP0623974A3 EP0623974A3 (de) 1995-12-06

Family

ID=20389808

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94106656A Withdrawn EP0623974A3 (de) 1993-05-03 1994-04-28 Verbinder für ein elektrisches Kabel mit Vorrichtung zur Zugentlastung.

Country Status (2)

Country Link
EP (1) EP0623974A3 (de)
SE (1) SE505617C2 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1665106A1 (de) * 1967-01-24 1971-10-14 Aloys Mennekes Elektrotechn Elektrische Kontaktsteckvorrichtung,insbesondere Schutzkontaktsteckvorrichtung
GB2194396A (en) * 1986-07-17 1988-03-02 Conblock Electrical Limited Electrical connector
FR2683683A1 (fr) * 1991-11-13 1993-05-14 Legrand Sa Serre-cable et appareil electrique equipe d'un tel serre-cable.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1665106A1 (de) * 1967-01-24 1971-10-14 Aloys Mennekes Elektrotechn Elektrische Kontaktsteckvorrichtung,insbesondere Schutzkontaktsteckvorrichtung
GB2194396A (en) * 1986-07-17 1988-03-02 Conblock Electrical Limited Electrical connector
FR2683683A1 (fr) * 1991-11-13 1993-05-14 Legrand Sa Serre-cable et appareil electrique equipe d'un tel serre-cable.

Also Published As

Publication number Publication date
EP0623974A3 (de) 1995-12-06
SE9301508L (sv) 1994-11-04
SE505617C2 (sv) 1997-09-22
SE9301508D0 (sv) 1993-05-03

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