WO1995002262A1 - Schraubklemme mit u-förmigem klemmkörper - Google Patents
Schraubklemme mit u-förmigem klemmkörper Download PDFInfo
- Publication number
- WO1995002262A1 WO1995002262A1 PCT/EP1994/001716 EP9401716W WO9502262A1 WO 1995002262 A1 WO1995002262 A1 WO 1995002262A1 EP 9401716 W EP9401716 W EP 9401716W WO 9502262 A1 WO9502262 A1 WO 9502262A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- screw
- end part
- leg
- clamping
- inner end
- Prior art date
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
- H01R13/02—Contact members
- H01R13/10—Sockets for co-operation with pins or blades
- H01R13/11—Resilient sockets
- H01R13/112—Resilient sockets forked sockets having two legs
-
- 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 according to the preamble of claim 1.
- a screw terminal for connecting electrical conductors is known from European patent 0 023 234 and is used there, for example, in connection with an integrally molded socket as a contact element for a cable connector.
- No thread pulls can be introduced into the thin spring plate required for such screw cleat names, and the required tightening torque cannot be achieved with a simple hole for receiving the clamping screw. Therefore, a sufficiently thick nut (cross nut) is provided between the legs and is held in the recesses of the two legs with lateral shoulders.
- the clear leg spacing can be reduced to the diameter of the threaded bore and thus a minimum width of the screw clamp can be achieved, the diameter of the screw head expediently corresponding to at most this width.
- the legs can be pressed apart by more than the material thickness of the sheet under the action of high clamping forces, that is, to such an extent that the cross nut is at least pulled out of a recess and thus no more secure clamp contacting is guaranteed. Often the screw clamp is deformed in this process so that it is unusable.
- the object of the invention is therefore to further develop a screw clamp of the type mentioned at the outset in the simplest possible and cost-saving manner in such a way that, with at least the same stability in the direction of the screw axis, the clamp height is reduced and the spreading of the clamping limbs reliably even with high clamping forces is prevented.
- This construction which is implemented with minimal additional effort (only an additional bending process), makes it possible to arrange the inner surface of the end part of the second leg lying directly on the cross nut, so that the height range required to absorb the clamping forces is twice the material thickness of the Sheet metal part is reduced.
- the terminal dimensions are not only reduced to an absolute minimum not only in width but also in height, which means that the area of application of the screw terminal is significantly enlarged and now e.g. also allows the use in miniature connectors, the contact carriers of which have, in cross section, very small contact chambers for receiving one-piece contact elements with screw terminal connection.
- the outer end part opens out when the tightening torques are high.
- the extensions could also be molded onto the inner end part and provided for insertion into recesses in the outer end part. In such an embodiment, however, the lugs protruding beyond the outer end part would increase the terminal height again.
- the clear distance between the legs corresponds to the outside diameter of the threaded shaft of the clamping screw.
- a further improvement in the stability of the bending web by widening is specified in claim 4.
- it bends with the same area as the inner end part and thus widens the bending web by the material thickness of the sheet metal part without protruding laterally beyond the second leg, so that the minimum width of the U-shaped clamping body is retained.
- the bending web which is widened in an extremely simple and cost-effective manner in this way, also withstands the mechanical loads which occur with the strongest clamping forces.
- the sheet metal part can be used for series production without additional costs, e.g. suitable in the stamping process because no undefined thin bars or tips can arise.
- the crescent-shaped claws formed by slightly shortening the inner end part and comprising the screw shaft are relatively robust and, in particular in the case of a clamp design according to claim 2, are also reliably protected against opening under the action of high clamping forces.
- FIG. 1 shows a development of the sheet metal part of the screw terminal
- Figures 2a-c - a front and side view and one
- FIG. 3 - a top view of the cross nut which has not been assembled
- Figure 4 - a connection-side end view of the connector contact carrier with inserted bushings
- Figure 5 - a partially broken side view of the
- the clamping bush 1 consists of a screw clamp 2 according to the invention and two fork springs 3 integrally molded thereon, forming a socket contact
- a recess 7 is provided, into which opposing shoulders 8 of a cross nut 9 with a central threaded bore 10 for receiving a clamping screw 11 engage so far that they are flush with the outer wall of the legs 5, 6. This not only ensures a stable mounting of the cross nut, but also gives the possibility of adapting the clear distance between the legs 5, 6 to the screw diameter and thus minimizing the terminal width.
- An end part 12 of the first leg 5 is bent 90 ° by a first bending edge 13 towards the second leg 6, its end edge 14 is flush with the outer wall of the second leg 6.
- An end part 15 of the second leg 6 is towards the first leg 5 bent around a second bending edge 16 also by 90 ° and arranged between the outer end part 12 and the cross nut 9.
- the outer end part 12 lies on the inner end part 15 and this in turn rests on the cross nut 9, so that a low clamp height is achieved with high stability.
- Both end parts 12, 15 each carry a central bushing 17, 18 for the clamping screw 11.
- the bushing 17 of the outer end part 12 of the first leg 15 is circular, the circular diameter corresponding to the outer diameter of the threaded shaft 19 of the clamping screw 11.
- the passage 18 of the inner end part 15 of the second leg 6 is also circular in a central region with the diameter mentioned; on the area facing the bending edge 16, the circle is reduced by a segment whose chord 20 parallel to the bending edge -16 is at a distance from the center of the circle M corresponding to the core radius of the threaded shaft 19.
- the edge 16 of the recess 7 facing the bending edge 16 has an indentation 22 corresponding to the material thickness of the sheet metal part 4, so that a relatively wide and thus stable web 23 is formed between the recess 7 and the bushing 18, which breaks even at high clamping forces of the sheet metal part 4 effectively prevented at this point.
- the web 23 engages in the thread of the clamping screw 11 due to the specified dimensioning and thereby simultaneously forms a screw lock.
- the mechanical strength of the screw clamp 2 is further increased by projections 24, 25 which protrude in one piece from the outer end part 12 of the leg 5 and which - bent by approximately 90 ° - each penetrate a corresponding recess 27 of the inner end part 15 with their neck part 26 and with a single nose 28 or double nose 29 running transversely to the neck part 26, engage behind the inner edge regions of the cutouts 27 without projecting beyond the screw terminal 2.
- the diameter of the screw head 30 is dimensioned with a size corresponding to the clamp width so that it does not enlarge the clamp dimensions and can nevertheless convert the full tightening torque into clamping force.
- the distance between the center M of the passage 18 of the inner end part 15 from its free end edge 31 is smaller than the circular diameter, so that a circular opening of approximately 2/3 of the circular diameter is formed, through which two crescent-shaped claws 32 are formed, which um ⁇ the screw grasp.
- this embodiment is much more manageable in terms of production technology than a feedthrough that touches the front edge when the diameter of the threaded shaft 19 is equal to the clear leg distance.
- the stripped wire ends 35 of the associated strands 36 are each inserted between the cross nut 9 and the curved bottom part 37 of the U-shaped sheet metal part 4 and are clamped by the clamping screw 11 screwed in transversely to the plugging direction.
- the screw head 30 lies in an adapted bore of a wall 38 of the contact carrier 34 which bears against the outer surface of the end part 12 of the first leg 5, as a result of which the clamping bush 1 is simultaneously held in the contact chamber 33.
- slots 39 are provided in an extension of the contact chambers 33 and extend to the end face 40 of the contact carrier 34.
- the contact carrier 34 has a central bore 41.
Landscapes
- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
- Clamps And Clips (AREA)
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
- Insulators (AREA)
- Processing Of Terminals (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7503777A JPH09501538A (ja) | 1993-07-08 | 1994-05-26 | U字形のクランプ体を備えたねじクランプ |
US08/307,705 US5771983A (en) | 1993-07-08 | 1994-05-26 | Screw clamp with u-shaped clamp part |
EP94918380A EP0707745B1 (de) | 1993-07-08 | 1994-05-26 | Schraubklemme mit u-förmigem klemmkörper |
DE59403886T DE59403886D1 (de) | 1993-07-08 | 1994-05-26 | Schraubklemme mit u-förmigem klemmkörper |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4322790A DE4322790C2 (de) | 1993-07-08 | 1993-07-08 | Schraubklemme mit u-förmigem Klemmkörper |
DEP4322790.2 | 1993-07-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995002262A1 true WO1995002262A1 (de) | 1995-01-19 |
Family
ID=6492284
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1994/001716 WO1995002262A1 (de) | 1993-07-08 | 1994-05-26 | Schraubklemme mit u-förmigem klemmkörper |
Country Status (6)
Country | Link |
---|---|
US (1) | US5771983A (de) |
EP (1) | EP0707745B1 (de) |
JP (1) | JPH09501538A (de) |
AT (1) | ATE157487T1 (de) |
DE (2) | DE4322790C2 (de) |
WO (1) | WO1995002262A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19801331C2 (de) * | 1998-01-16 | 2003-09-25 | Hayo Joerg | Modulares Mehrfach-Stern-Schraubklemmen-System |
US6752368B2 (en) | 2002-10-30 | 2004-06-22 | Alcoa Inc. | Clamping device and method for grasping a workpiece |
DE102005055598A1 (de) * | 2005-11-19 | 2007-05-31 | Phoenix Contact Gmbh & Co. Kg | Schraubklemme und Reihenklemme |
DE102006038253A1 (de) * | 2006-08-16 | 2008-02-21 | Hirschmann Automation And Control Gmbh | Elektrische Steckverbindung |
JP2011113680A (ja) * | 2009-11-24 | 2011-06-09 | Panasonic Electric Works Co Ltd | ねじ端子及びこれを備えるコンセント |
SE536980C2 (sv) * | 2013-03-04 | 2014-11-25 | Scania Cv Ab | Ledningssko |
US9293841B2 (en) | 2013-07-10 | 2016-03-22 | Panduit Corp. | Mechanical lug with dovetail interlock feature |
FR3090225B1 (fr) * | 2018-12-13 | 2020-11-27 | Schneider Electric Ind Sas | Borne a compensation de serrage en particulier pour un appareil de protection electrique. |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1289114A (fr) * | 1960-06-22 | 1962-03-30 | O M R Ohg Riunite S P A | Serre-fil pour fixation de conducteurs à des appareils électriques |
DE2011081A1 (de) * | 1969-03-10 | 1970-09-24 | Compagnie Generale D'entreprises Electriques, Levallois-Perret, Seine (Frankreich) | Elektrische Klemme |
EP0023234A1 (de) * | 1979-07-28 | 1981-02-04 | Richard Hirschmann Radiotechnisches Werk | Schraubklemme mit U-förmigem Klemmkörper |
FR2503939A1 (fr) * | 1981-04-14 | 1982-10-15 | Alsthom Cgee | Borne de connexion pour conducteur electrique isole |
DE8402382U1 (de) * | 1984-01-27 | 1984-04-26 | Siemens AG, 1000 Berlin und 8000 München | Anschluß-Klemme |
EP0337236A1 (de) * | 1988-04-15 | 1989-10-18 | Siemens Aktiengesellschaft | Elektrische Klemme |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1107755B (de) * | 1957-04-20 | 1961-05-31 | Wieland Elek Sche Ind G M B H | Klemme zum Anschluss eines Leiters an eine Stromschiene |
DE1808756U (de) * | 1960-02-01 | 1960-03-31 | C A Weidmueller K G | Elektrische leitungsklemme, insbesondere zugbuegelklemme. |
DE1835455U (de) * | 1961-04-29 | 1961-07-27 | Wieland Elek Sche Ind G M B H | Verbindungsklemme. |
FR1566270A (de) * | 1968-01-18 | 1969-05-09 | ||
GB1312922A (en) * | 1969-08-26 | 1973-04-11 | Lucas Industries Ltd | Electrical terminals |
CH590567A5 (de) * | 1975-10-09 | 1977-08-15 | Landis & Gyr Ag |
-
1993
- 1993-07-08 DE DE4322790A patent/DE4322790C2/de not_active Expired - Lifetime
-
1994
- 1994-05-26 WO PCT/EP1994/001716 patent/WO1995002262A1/de active IP Right Grant
- 1994-05-26 US US08/307,705 patent/US5771983A/en not_active Expired - Lifetime
- 1994-05-26 JP JP7503777A patent/JPH09501538A/ja not_active Expired - Lifetime
- 1994-05-26 DE DE59403886T patent/DE59403886D1/de not_active Expired - Lifetime
- 1994-05-26 EP EP94918380A patent/EP0707745B1/de not_active Expired - Lifetime
- 1994-05-26 AT AT94918380T patent/ATE157487T1/de not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1289114A (fr) * | 1960-06-22 | 1962-03-30 | O M R Ohg Riunite S P A | Serre-fil pour fixation de conducteurs à des appareils électriques |
DE2011081A1 (de) * | 1969-03-10 | 1970-09-24 | Compagnie Generale D'entreprises Electriques, Levallois-Perret, Seine (Frankreich) | Elektrische Klemme |
EP0023234A1 (de) * | 1979-07-28 | 1981-02-04 | Richard Hirschmann Radiotechnisches Werk | Schraubklemme mit U-förmigem Klemmkörper |
FR2503939A1 (fr) * | 1981-04-14 | 1982-10-15 | Alsthom Cgee | Borne de connexion pour conducteur electrique isole |
DE8402382U1 (de) * | 1984-01-27 | 1984-04-26 | Siemens AG, 1000 Berlin und 8000 München | Anschluß-Klemme |
EP0337236A1 (de) * | 1988-04-15 | 1989-10-18 | Siemens Aktiengesellschaft | Elektrische Klemme |
Also Published As
Publication number | Publication date |
---|---|
DE4322790C2 (de) | 1996-03-07 |
EP0707745A1 (de) | 1996-04-24 |
DE59403886D1 (de) | 1997-10-02 |
DE4322790A1 (de) | 1995-01-19 |
EP0707745B1 (de) | 1997-08-27 |
US5771983A (en) | 1998-06-30 |
ATE157487T1 (de) | 1997-09-15 |
JPH09501538A (ja) | 1997-02-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102008026805A1 (de) | Einzelklemme | |
DE102009019699B4 (de) | Anschlussklemme für Leiterplatten | |
WO2017081197A1 (de) | Steckkontakt | |
EP3282518A1 (de) | Federkraftklemme zum anschluss eines elektrischen leiters | |
DE10351540B3 (de) | Flachsteckbuchse | |
EP3446367B1 (de) | Steckkontakt | |
DE4322790C2 (de) | Schraubklemme mit u-förmigem Klemmkörper | |
EP0756352A1 (de) | Steckverbinder | |
DE19809706B4 (de) | Quetschklemme | |
EP1587172B1 (de) | Steckbuchse zum elektrisch leitenden Verbinden mit einem Steckstift, insbesondere Flachsteckstift | |
DE3732267C1 (en) | Electrical terminal block | |
DE10255674B4 (de) | Reihenklemme mit steckbarem Querbrücker | |
DE10019241A1 (de) | Elektrisches Kontaktelement | |
DE19830484C1 (de) | Klemmverbindung | |
DE9310186U1 (de) | Schraubklemme mit u-förmigem Klemmkörper | |
EP3123566B1 (de) | Kontaktbuchse für eine steckdose oder kupplung | |
EP1974417A1 (de) | Vorrichtung zum anschluss eines stegs | |
EP1514330A1 (de) | Kontaktelement für eine elektrische steckverbindung | |
DE19811476C1 (de) | Kabelklemme | |
DE102005054590A1 (de) | Elektrischer Steckverbinder | |
DE10117570A1 (de) | Elektrischer Kontakt sowie Lampenfassung und Anschluss- oder Verbindungsklemme mit mindestens einem solchen Kontakt | |
DE4026644C1 (en) | Electrical plug for socket connector - has actuator partially engaging recess in socket contact part in second function position | |
EP1028488B1 (de) | Anschlussklemme für ein elektrisches Installationsgerät | |
DE29914482U1 (de) | Geräteanschlußklemme | |
DE202009016064U1 (de) | Kontaktelementanordnung sowie Anschlussvorrichtung für eine derartige Kontaktelementanordnung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): JP US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1994918380 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 08307705 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 1994918380 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 1994918380 Country of ref document: EP |