EP1206003B1 - Mise à la terre avec liaison vis-écrou à cage d'un composant sur pièce couverte d'une couche isolante - Google Patents

Mise à la terre avec liaison vis-écrou à cage d'un composant sur pièce couverte d'une couche isolante Download PDF

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Publication number
EP1206003B1
EP1206003B1 EP01402891A EP01402891A EP1206003B1 EP 1206003 B1 EP1206003 B1 EP 1206003B1 EP 01402891 A EP01402891 A EP 01402891A EP 01402891 A EP01402891 A EP 01402891A EP 1206003 B1 EP1206003 B1 EP 1206003B1
Authority
EP
European Patent Office
Prior art keywords
cage
grounding
nut
mounting part
screw
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.)
Expired - Lifetime
Application number
EP01402891A
Other languages
German (de)
English (en)
Other versions
EP1206003A1 (fr
Inventor
Otto Demel
Walter Hoffmann
Uwe Rieger
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.)
LISI Automotive Rapid
Original Assignee
LISI Automotive Rapid
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 LISI Automotive Rapid filed Critical LISI Automotive Rapid
Publication of EP1206003A1 publication Critical patent/EP1206003A1/fr
Application granted granted Critical
Publication of EP1206003B1 publication Critical patent/EP1206003B1/fr
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
    • 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
    • H01R4/58—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 characterised by the form or material of the contacting members
    • H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
    • 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
    • H01R4/26—Connections in which at least one of the connecting parts has projections which bite into or engage the other connecting part in order to improve the contact
    • 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
    • H01R4/304—Clamped connections, spring connections utilising a screw or nut clamping member having means for improving contact

Definitions

  • the present invention relates to a grounding device with a nut held in a cage and a tightening screw for ground connection of components to fastening parts with electrically non-conductive surface coating, according to the preamble of patent claim 1.
  • a grounding device of this kind is of the German patent DE 3714500 known here.
  • This known device has the disadvantage that the cage when tightening the tightening screw can be deformed in an uncontrollable manner and specific structural means are necessary to set the nut in the cage, especially in the axial direction.
  • the present invention has for its object to provide a grounding device that does not have the aforementioned disadvantages.
  • FIG. 1 shows schematically a grounding device according to the invention
  • FIGS. 2, 3 and 4 show in a view from below and in two rotated by 90 ° side views of a first embodiment of a cage nut according to the invention.
  • FIG. 5 shows in a plan view the shape of a flat band-shaped piece of material, starting from the cage according to the FIGS. 2 to 4 is formed.
  • FIGS. 6, 7 and 8 show in a view from below and in two offset by 90 ° side views of a second embodiment of a cage of a cage nut according to the invention.
  • FIG. 9 shows the shape of a flat band-shaped piece of material, starting from the cage according to the FIGS. 6 to 8 is trained.
  • FIG. 1 shows a grounding device according to the invention 1 with a grounding nut 2, a nut associated with this cage 3 and a screw 4 for fastening with simultaneous grounding of a plate or a component 5 to a fastening part 6, for example a rail.
  • the surfaces 7, 8 of the fastening part are provided with an electrically insulating coating, for example a powder coating.
  • the surface 9 of the plate 5 is electrically conductive. For passing the screw through the superimposed parts 5 and 6, these aligned holes 10 have corresponding shapes.
  • the cage 3 is in a known manner from a flat piece of strip material according to the Figures 5 and 8th formed by appropriate bending in a known manner and has a rectangular nut 2 comprehensive cage area 12 and two opposite, adjoining the area 12 bracket 13.
  • This Brackets are from the two ends of the band-shaped starting material according to the Figures 5 and 8th educated.
  • Each bracket has a U-shaped profile, with a first leg 15 which rests against the underside of the nut 2 and extends to the axis thereof, and a second outer leg 16 which in the assembled state between the two facing surfaces 8 and 9 the fastening part 6 and the counterpart 5 comes to rest.
  • the nut 2 is held by lateral lobes 18 on the open sides of the bracket in the cage.
  • grounding tips 20 are formed, which are directed to the surface 7 of the fastening part.
  • the tips 20 are arranged centrally on the leg.
  • the grounding tip 20 forms the end of a tongue 21 punched out of the flat starting material, which extends from a position near an end 23 of the starting piece to the axis of a central circular hole 24 intended for insertion of the screw.
  • the flat starting piece according to the FIG. 5 around the dash-dotted lines indicated l 1 , l 2 , l 3 and l 4 bent to the profile on the FIG. 3 is clearly shown to receive.
  • the first leg 15 corresponds to the area between the bending lines l 2 and l 3 , which contains the end portion 24 with the grounding tip 20 of the tongue 21. As the FIG. 3 shows, the tip 20 is bent from the plane to the legs 15 in the direction of the second leg.
  • a longitudinally extending tongue 27 is formed, which in the shaping by corresponding bending of the Leg in the plane of the first leg 15 remains, as the FIG. 7 clearly shows.
  • the end of this tongue 27 is bent in the direction of the second leg 16 and forms the grounding tip 20, which penetrates the coating on the surface 7 of the fastening part 6 when tightening the screw in the assembled state.
  • the cage nut according to the invention described in the foregoing has numerous advantages. It allows a pre-assembly of the fastening part, in particular a rail, in the same manner as in a mother without grounding.
  • the fastening part and the counterpart can lie flat on one another.
  • the grounding tips or claws receive over the contact surface of the nut a direct direction of force for penetrating the insulating coating of the fastening part.

Landscapes

  • Elimination Of Static Electricity (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)

Claims (4)

  1. Dispositif de mise à la terre doté d'un écrou à cage (2) maintenu dans une cage (3) et d'une vis de serrage (4) pour la liaison de masse de composants sur des parties de fixation (6) avec un revêtement de surface non électroconducteur, tel que des rails profilés, à l'aide d'une pièce inverse (5) avec surface conductrice, la cage (3) présentant des étriers (13) à accrocher dans la partie de fixation (6), qui sont conçus en U et sont fixés par un trou dans la partie de fixation lors de l'application de l'écrou, une première branche (15) de chaque étrier s'appliquant sur le côté, tourné vers l'écrou, de la partie de fixation (6), et l'autre branche (16) arrivant entre la partie de fixation (6) et la pièce inverse (5) et la cage (3) présentant des pointes de mise à la terre (20), qui, lors du serrage de la vis (4), ne traversent pas le revêtement de surface non conducteur de la partie de fixation (6), caractérisé en ce que les pointes de mise à la terre (20) sont prévues sur les extrémités des lames (21, 27), les lames s'étendent dans la zone des plans de ladite première branche (15) et les pointes de mise à la terre sont orientées en direction de la surface de la partie de fixation, et, lors du serrage de la vis (4), l'écrou (2) vient s'appuyer sur les lames, de sorte que les pointes sont enfoncées par la pression de l'écrou exercée sur les lames à travers le revêtement.
  2. Dispositif de mise à la terre selon la revendication 1, caractérisé en ce que les pointes de mise à la terre (20) sont conçues au centre dans ladite première branche (15).
  3. Dispositif de mise à la terre selon la revendication 1, caractérisé en ce que les pointes de mise à la terre (20) sont conçues à l'extérieur sur chaque première branche.
  4. Dispositif de mise à la terre selon l'une des revendications 2 ou 3, la cage étant formée à base d'une pièce de matériau de départ plate et en forme de bande par pliage autour de lignes de pliage prédéfinies, caractérisé en ce que chaque pointe de mise à la terre (20) est l'extrémité d'une lame (21, 27), qui est découpée dans la zone pièce de matériau, laquelle est destinée à former un étrier.
EP01402891A 2000-11-10 2001-11-09 Mise à la terre avec liaison vis-écrou à cage d'un composant sur pièce couverte d'une couche isolante Expired - Lifetime EP1206003B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20019132U DE20019132U1 (de) 2000-11-10 2000-11-10 Erdungsvorrichtung mit einer Käfigmutter und einer Anzugsschraube zur Masseverbindung von Bauteilen an Befestigungsteilen mit nicht leitender Oberflächenbeschichtung
DE20019132U 2000-11-10

Publications (2)

Publication Number Publication Date
EP1206003A1 EP1206003A1 (fr) 2002-05-15
EP1206003B1 true EP1206003B1 (fr) 2012-06-27

Family

ID=7948674

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01402891A Expired - Lifetime EP1206003B1 (fr) 2000-11-10 2001-11-09 Mise à la terre avec liaison vis-écrou à cage d'un composant sur pièce couverte d'une couche isolante

Country Status (2)

Country Link
EP (1) EP1206003B1 (fr)
DE (1) DE20019132U1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3714500C1 (de) * 1987-04-30 1988-08-11 Loh Kg Rittal Werk Vorrichtung zum elektrisch leitenden Verbinden von zwei Bauteilen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2213328B (en) * 1987-12-03 1991-12-11 Loh Kg Rittal Werk Earthing device
DE8913759U1 (de) * 1989-11-21 1991-03-28 Grote & Hartmann Gmbh & Co Kg, 5600 Wuppertal Vorrichtung für die Masse-Kontaktierung einer Fahrzeug-Tankeinrichtung
DE4211923C1 (fr) * 1992-04-09 1993-07-29 Schroff Gmbh, 7541 Straubenhardt, De
DE19525881C1 (de) * 1995-07-15 1996-07-25 Loh Kg Rittal Werk Halter für die Rückwand eines Schaltschrankes

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3714500C1 (de) * 1987-04-30 1988-08-11 Loh Kg Rittal Werk Vorrichtung zum elektrisch leitenden Verbinden von zwei Bauteilen

Also Published As

Publication number Publication date
EP1206003A1 (fr) 2002-05-15
DE20019132U1 (de) 2001-01-11

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