EP0023234A1 - Organe de serrage à vis avec corps de serrage en forme de U - Google Patents

Organe de serrage à vis avec corps de serrage en forme de U Download PDF

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Publication number
EP0023234A1
EP0023234A1 EP19790103988 EP79103988A EP0023234A1 EP 0023234 A1 EP0023234 A1 EP 0023234A1 EP 19790103988 EP19790103988 EP 19790103988 EP 79103988 A EP79103988 A EP 79103988A EP 0023234 A1 EP0023234 A1 EP 0023234A1
Authority
EP
European Patent Office
Prior art keywords
screw
clamping
sheet metal
legs
shaped sheet
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
EP19790103988
Other languages
German (de)
English (en)
Other versions
EP0023234B1 (fr
Inventor
Gerd Ing. Holst (Grad.)
Walter Freisleben
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.)
Richard Hirschmann & Co Te Esslingen Bondsr GmbH
Original Assignee
HIRSCHMANN RADIOTECHNIK
Richard Hirschmann Radiotechnisches Werk
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 HIRSCHMANN RADIOTECHNIK, Richard Hirschmann Radiotechnisches Werk filed Critical HIRSCHMANN RADIOTECHNIK
Publication of EP0023234A1 publication Critical patent/EP0023234A1/fr
Application granted granted Critical
Publication of EP0023234B1 publication Critical patent/EP0023234B1/fr
Expired 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
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/36—Conductive members located under tip of screw

Definitions

  • the invention relates to a screw terminal for connecting electrical conductors, the clamping body of which consists of a U-shaped sheet metal part, between the legs of which a transverse nut is provided for receiving and guiding the clamping screw and is preferably held by means of laterally projecting shoulders which engage in recesses in the legs.
  • screw terminals are known in many variants from literature (e.g. DE-AS 19 42 982) and practice. All of these designs are used exclusively as socket clamps, in which a conductor is clamped between the bottom section of the U-shaped 6-piece part and the clamping screw itself or a special clamping body attached to it. In view of this limited use, the manufacturing effort and space requirements of such clamps are inappropriately high.
  • a screw terminal of the type mentioned at the outset is created with the simplest means without additional effort in manufacture and assembly, which can not only be used as a socket terminal, but also for screw head clamping of conductors, in particular cable lugs or - due to the stable contact surface of the leg part lying transversely to the screw axis. is suitable.
  • the external dimensions have remained the same compared to the known terminals, so that no larger space is required and in particular the terminals according to the invention are compatible with the known terminals with regard to use in chambers of already existing insulating housings (e.g. of connectors).
  • the lateral support for a screw head clamping is still large enough if a screw shaft with a large diameter is selected with a view to good socket clamping without a separate clamping body.
  • An optimally large clamping area is achieved without increasing the space requirement of the clamp if, according to claim 3, the length of the transverse end part corresponds to the diameter of the screw head.
  • An embodiment of the screw terminal according to the invention ensures reliable clamping, which is largely independent of the dimensions of the transverse end part or the screw head, not only for cable lugs and eyelets, but also for wires and strands. Above all, however, the risk of injury or even shearing off of the conductor to be clamped when the screw head is turned is reliably avoided.
  • An embodiment according to claim 6 offers the advantage of a simple, inexpensive, yet effective screw lock, which moreover does not need any parts that can be lost.
  • an embodiment according to claim 7 is particularly advantageous because it does not require any special measures and components for connecting terminals and contact parts.
  • the figures show an embodiment of the screw terminal according to the invention, used in the insulated part of a three-pin socket.
  • FIGS. 2 and 3 each show a partially sectioned view of the side part and the socket connection side.
  • connection block 1 In the insulating part of the socket, of which only the connection block 1 is shown for the sake of clarity, three screw terminals 2 are arranged, each of which carries a socket contact 4 arranged in a chamber 3 which is open towards the plug side.
  • This is formed from two clamping spring legs 5, which lie against each other at one point under pressure and whose end parts 6 are bent outwards in such a way that a V-shaped socket opening results, which enables easy and safe insertion of plug pins.
  • the screw terminals 2 each consist of a U-shaped sheet metal part 7 produced in the stamping process, the longer leg of which is angled with its end part 8 toward the direction of the clamping screw 9, rests on the free end of the shorter leg and has a recess for carrying out the threaded part lo the clamping screw 9, and a nut 11 arranged between the legs, into which the clamping screw 9 for clamping example as provided with cable end sleeves 12 conductors 13 can be screwed in and passes through the window 15 of the legs for mounting purposes with shoulders projecting laterally.
  • two mutually opposite edge parts 16 of the recess are bent in the screwing direction in such a way that they bear against the threaded part 10 of the clamping screw 9 under slight pressure.
  • the screw terminals 2 are fastened in corresponding chambers 17 of the connection block 1 simply and expediently in that latching lugs 19 attached to extensions 16 of the legs of the U-shaped sheet metal part 19 engage behind corresponding edges of the chambers 17.
  • the arcuate section of the U-shaped sheet metal part 7 forms, together with the end face of the clamping screw 9, the socket clamp.
  • a conductor clamping between screw head 2o and transverse end part 8 is also possible. This is dimensioned and bent such that it protrudes on both sides over the legs and its length corresponds to the diameter of the screw head 20. This creates a support surface that is stable on the one hand and large enough on the other hand to ensure not only the clamping of cable lugs or eyelets 21, but also of wires or strands 22.
  • a clamping plate 23 is provided between the screw head 20 and the contact surface.

Landscapes

  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
EP19790103988 1979-07-28 1979-10-16 Organe de serrage à vis avec corps de serrage en forme de U Expired EP0023234B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19797921662 DE7921662U1 (de) 1979-07-28 1979-07-28 Schraubklemme mit U-förmigem Klemmkörper
DE7921662U 1979-07-28

Publications (2)

Publication Number Publication Date
EP0023234A1 true EP0023234A1 (fr) 1981-02-04
EP0023234B1 EP0023234B1 (fr) 1983-11-09

Family

ID=6706175

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790103988 Expired EP0023234B1 (fr) 1979-07-28 1979-10-16 Organe de serrage à vis avec corps de serrage en forme de U

Country Status (2)

Country Link
EP (1) EP0023234B1 (fr)
DE (1) DE7921662U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4322790A1 (de) * 1993-07-08 1995-01-19 Hirschmann Richard Gmbh Co Schraubklemme mit u-förmigem Klemmkörper

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3689870A (en) * 1971-03-03 1972-09-05 Hubbell Inc Harvey Electrical receptacle having an improved contact terminal arrangement
DE7536092U (de) * 1975-11-13 1976-03-11 Felten & Guilleaume Carlswerk Ag, 5000 Koeln Anschlussklemme fuer elektrische leitungen
DE7526900U (de) * 1975-08-26 1976-03-25 Wago-Kontakttechnik Gmbh, 4950 Minden Anschluß- und/oder Verbindungsklemme
DE2551300B2 (de) * 1975-10-09 1978-01-19 Lgz Landis & Gyr Zug Ag, Zug (Schweiz) Klemmhuelse einer schraubklemme fuer elektrische leitungen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3689870A (en) * 1971-03-03 1972-09-05 Hubbell Inc Harvey Electrical receptacle having an improved contact terminal arrangement
DE7526900U (de) * 1975-08-26 1976-03-25 Wago-Kontakttechnik Gmbh, 4950 Minden Anschluß- und/oder Verbindungsklemme
DE2551300B2 (de) * 1975-10-09 1978-01-19 Lgz Landis & Gyr Zug Ag, Zug (Schweiz) Klemmhuelse einer schraubklemme fuer elektrische leitungen
DE7536092U (de) * 1975-11-13 1976-03-11 Felten & Guilleaume Carlswerk Ag, 5000 Koeln Anschlussklemme fuer elektrische leitungen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4322790A1 (de) * 1993-07-08 1995-01-19 Hirschmann Richard Gmbh Co Schraubklemme mit u-förmigem Klemmkörper
WO1995002262A1 (fr) * 1993-07-08 1995-01-19 Richard Hirschmann Gmbh & Co. Borne a vis comportant un element de serrage en u
US5771983A (en) * 1993-07-08 1998-06-30 Richard Hirschmann Gmbh & Co. Screw clamp with u-shaped clamp part

Also Published As

Publication number Publication date
EP0023234B1 (fr) 1983-11-09
DE7921662U1 (de) 1979-10-25

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