EP0025472B1 - Ecrou de fixation de fermeture de porte d'armoire électrique pour la fixation de fermetures en métal pour des portes d'armoire électrique - Google Patents

Ecrou de fixation de fermeture de porte d'armoire électrique pour la fixation de fermetures en métal pour des portes d'armoire électrique Download PDF

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Publication number
EP0025472B1
EP0025472B1 EP80100170A EP80100170A EP0025472B1 EP 0025472 B1 EP0025472 B1 EP 0025472B1 EP 80100170 A EP80100170 A EP 80100170A EP 80100170 A EP80100170 A EP 80100170A EP 0025472 B1 EP0025472 B1 EP 0025472B1
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EP
European Patent Office
Prior art keywords
fastening nut
tooth
teeth
nut
contact surface
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Expired
Application number
EP80100170A
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German (de)
English (en)
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EP0025472B2 (fr
EP0025472A1 (fr
Inventor
Friedhelm Runge
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Individual
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Individual
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Application filed by Individual filed Critical Individual
Priority to AT80100170T priority Critical patent/ATE10048T1/de
Publication of EP0025472A1 publication Critical patent/EP0025472A1/fr
Publication of EP0025472B1 publication Critical patent/EP0025472B1/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C3/00—Fastening devices with bolts moving pivotally or rotatively
    • E05C3/02—Fastening devices with bolts moving pivotally or rotatively without latching action
    • E05C3/04—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt
    • E05C3/041—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt rotating about an axis perpendicular to the surface on which the fastener is mounted
    • E05C3/042—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt rotating about an axis perpendicular to the surface on which the fastener is mounted the handle being at one side, the bolt at the other side or inside the wing
    • 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

Definitions

  • the invention relates to a fastening nut for fastening closures made of metal for control cabinet doors, in which the closure passed through a metallic wall is grounded by electrical contact with the metallic wall.
  • Control cabinets are mostly made of sheet metal for safety reasons, the control cabinet door e.g. is provided with a rod lock or twist lock closure, as is known from DE-U-7 621 270 already mentioned.
  • a rod lock or twist lock closure As is known from DE-U-7 621 270 already mentioned.
  • an opening is punched into the sheet metal of the door leaf, through which a screw with an axial bore is passed, which forms a bearing for the cabinet door locking device and even by means of a nut in the Die cut can be firmly attached.
  • These locking devices can also have a square arranged within the bore, which can be rotated with a handle or key that can be plugged onto this square.
  • the lock is always in electrical contact with the metallic and thus electrically conductive door leaf, i.e. is grounded.
  • the screw provided with the hole or the associated fastening nut must be in electrical contact with the sheet metal of the door leaf.
  • Nomel disks which are fan-shaped and have on their outer edges in the one axial direction protrusions, while they have radial, in the other axial direction protruding corrugations on the contact surface for the mother, which also to secure the Serve mother.
  • DE-C-319 339 it is not known from DE-C-319 339 to provide both contact surfaces with teeth that are sharp in the tightening direction and with their tips projecting beyond the contact surface for scratching non-conductive layers (such as oxide layers) on the metallic wall.
  • the “teeth” mentioned in the publication are milling strips that do not protrude beyond the contact surface of the nut. Since these milling strips also extend across the entire cross-sectional width of the contact surface of the nut, the pressure force required is increased even more and, in addition, an often undesired leak path through these milling strips is created, which from the one door leaf level through the milling strip impressions, along the outer circumference of the closure housing, to the opposite Door leaf surface leads. This leakage path allows moisture to penetrate the control cabinet, or even aggressive or potentially explosive gases, provided the control cabinet is used in appropriate environments.
  • the object of the invention is to provide a fastening nut of the type mentioned, which certainly makes an earth contact to the metallic door leaf surface, is inexpensive to manufacture, cannot be incorrectly assembled or forgotten, and also does not cause any undesired leakage channels in the area of the contact surface.
  • the fastening nut is also an earth nut, that both side surfaces of the fastening nut are provided with sharp teeth in the tightening direction, with their tips protruding beyond the contact surface for scratching non-conductive layers, in particular lacquer and oxide layers, on the metallic wall, to make electrical contact between the side support surface and the mounting nut and the metallic wall, thereby eliminating the need for separate grounding measures, each tooth having a width smaller than the cross-sectional width of the mounting surface of the mounting nut.
  • the fastening nut is also the earthing means avoids the need for additional earthing means, e.g. Serrated lock washers, Nomel washers and the like, which on the one hand leads to a reduction in the cost of the grounding measure, and on the other hand makes it particularly impossible to forget the grounding means.
  • additional earthing means e.g. Serrated lock washers, Nomel washers and the like
  • each tooth has a smaller width than the cross-sectional width of the contact surface of the fastening nut also prevents the occurrence of unfavorable leakage paths, since there is always an annular cross-sectional area that creates a sealing effect in connection with the door paint, for example.
  • radially opposite teeth are provided in the fastening nut. This is cheap because it makes the load on the nut more uniform.
  • the height of the tooth must be greater than the thickness of the lacquer or oxide layer, which is, for example, 50 x 10- 6 m.
  • the tooth since the tooth may be partially blunted during tightening, it is expedient to design the tooth so that it protrudes about 0.2 to 0.4 mm beyond the contact surface of the fastening nut after its manufacture.
  • the ten tooth is not only given a smaller width than the cross-sectional width of the contact surface of the fastening nut, but if this width is made considerably smaller, it can be advantageous to arrange several teeth at different radial distances from the nut axis.
  • the arrangement of the teeth with a greater radial spacing from tooth to tooth could take place spirally over at least part of the support circumference of the fastening nut, the spacing differences being approximately the same or slightly smaller than the tooth width. This staggered arrangement of the teeth would scrape off the insulating layer with a greater width than the width of the individual tooth, which sometimes has advantages.
  • further savings in particular with regard to the manufacturing costs for the fastening nut can be achieved in that the fastening nut, including the teeth on both sides, is manufactured by deep drawing and / or pressing in one or two working steps.
  • the savings result from lower material requirements and also due to the simplified manufacturing process, in which the teeth are not specially manufactured, but instead are created automatically by the process of punching or deep drawing.
  • a fastening nut in the form of a washer has proven to be particularly advantageous, the square or hexagonal circumference of which has teeth pointing to both sides, which are formed by U-shaped or V-shaped stampings which are bent obliquely out of the plane of the washer.
  • the fastening nut could also be punched out of sheet metal and / or deep-drawn. In the latter case it would be e.g. B.
  • the fastening nut is in the form of a can, which has a coaxially arranged round opening in the lid and in the bottom with an upturned, thread-bearing edge, and the circumference of which is pressed into a square or hexagon, the teeth being or V-shaped, obliquely bent outwardly from the plane of the side surface are formed, wherein the stamped is preferably directed inwards starting from the edge or attached to the edge or near the edge and the bent part points in the tightening direction.
  • the material expressions for the simultaneous formation of the teeth and the indentations are generated by a tool which can be applied obliquely in the direction of the sharpness of the tooth to be formed in the material to be applied to the side surfaces of the fastening nut.
  • a tool which can be applied obliquely in the direction of the sharpness of the tooth to be formed in the material to be applied to the side surfaces of the fastening nut.
  • Such fastening nuts can be produced in a single operation, although a tangential force (torque) arises on the fastening nut to be machined or manufactured during tooth production (oblique pressing in of tool tips) due to the tangential component of the pressure force acting obliquely in the direction of sharpness, that is to say in the tangential direction on the side surface .
  • This torque can namely be easily compensated for by the corresponding torque forces which are generated by the tool tips placed on the other side of the nut.
  • the nut then does not need to be held particularly tight (e.g. on its circumference), while the tool devices engage the two sides of the nut (e.g. by simultaneously pressing and slightly twisting the tool halves against one another) and thereby producing the teeth and indentations.
  • Fig. 1 is a side view of a so-called rotary latch or friction door lock, as it is often used in electrical cabinets. It consists of a lock bearing 10, in which an actuating shaft 14, which has a toggle handle 12 at its free end, is rotatably mounted through 90 °. The angle of rotation is limited by a nose 16, which is attached to the actual grater 18 and abuts two stop surfaces 20 of a depression at the end of the bearing cylinder 10 to limit the angle of rotation.
  • the grater is fastened to the actuating shaft 14 by means of a screw 22 and slides with its grater surface 24 on a corresponding path of the door frame when the control cabinet door is closed.
  • the handle can also be removable, for example by providing a square on the actuating shaft 14 within the bearing 10, onto which a key provided with a corresponding square recess can be attached. Other embodiments such as triangular, double beard, etc. are also possible.
  • the bearing 10 and handle 12 if these consist mostly of metal, must be electrically connected to the wall panel 26 of the door leaf, so that this is not caused by a wire that is torn off inside the cabinet and is under tension, for example touching the grater 18 Bearing 10 and the handle 12 are under tension.
  • the opposite surface 32 of the sheet 26 was scraped bare, on which the bearing surface of a fastening nut 34 comes to rest, in which the overall arrangement after being pushed through is fixed by a corresponding punching in the wall sheet 26 by screwing the nut 34 onto a corresponding thread 36 is, the bearing 10 is secured against rotation by flats 38 within the punched.
  • FIG. 3 shows a fastening nut 34, the two side surfaces 50 of which are provided with teeth 40 which are sharp in the tightening direction and whose tip protrudes beyond the bearing surface 50 for scratching on non-conductive layers 74 (see FIGS. 4, 5a and 5b), and so on to establish an electrical contact between the lateral contact surface 50 of the fastening nut 34 and the metallic wall, here the door leaf 26.
  • FIG. 4 shows an enlarged top view of the several teeth 40 that are sharp in the tightening direction (usually a clockwise direction of rotation). As can be seen from this Fig. 4 and from Fig. 5a, which shows a section through Fig.
  • the tooth is arranged so that with its tip 42 when tightening the nut 34 what leads to a movement of the tooth tip 42 with respect to the plate 26 to the right, scrapes off the lacquer layer or oxide layer 44 down to the bare metal of the plate 26, the scraped-off lacquer or oxide chips 46 expediently being able to collect in a depression 48 which is in front of the tooth tip 42 is provided, as can also be seen in FIG. 5b.
  • Tooth tip 42 and countersink 48 can be formed in a particularly advantageous manner at the same time that material is thrown up with a suitable tool by pressing into the surface 50 of the nut 34 in such a way that the tip 42 results.
  • the tool could be placed obliquely in the direction of the sharpness of the tooth 42 to be formed in the surface 50 and brought to penetrate into the material, the tool simultaneously forming the depression 48 and the material throw-up 42, which automatically indicates a certain sharpness receives its uppermost position if a suitable material is selected for the nut 34.
  • Brass, hard bronze or steel are particularly suitable for this purpose.
  • a simple grain or chisel can be used as a tool, but for the cheapest possible production, a machine specially designed for this purpose is of course preferable, with which the teeth and the corresponding depressions on both sides of the fastening nut are produced simultaneously by using the appropriate tool the side surface Chen act the fastening nut in, for example, only a single operation.
  • the layer 44 of lacquer or oxide is thin, it has e.g. B. a thickness of less than 50 x 10- s m, the nut 34 also has the usual thread and the other parts are worked precisely, there is less than one turn between the beginning of scratching and the final tightening of the screw 34th
  • the fact that several teeth are provided on the contact surface of the nut 34 has a favorable effect here, as shown in FIG. In this case too, it is ensured that the entire circular arc of the contact surface 32 of the sheet 26 for the nut 34 is covered by at least one tooth 42 and is thus at least partially freed from its insulating layer 44.
  • the side surface 50 of the fastening nut 34 approaches the surface 52 of the sheet 26 more and more, while at the same time the tip 42a becomes blunt, as shown in FIG. 5b, while the chips 46, as far as they are not anyway fall out of the area of the fastening nut 34 because of the vertical arrangement of the metal wall 26, collect in the depression 48.
  • the remaining blunted tip 42a will press a little into the material of the sheet 26 and not only bring about an even closer electrical contact with an even lower contact resistance, but also a locking of the fastening nut 34.
  • each tooth 40 has a smaller width 54 than the cross-sectional width 56 on the bearing surface 50 of the fastening nut 34. After all, a relatively wide area of the sheet 26 is still scratched free. For particularly hard materials, however, it may be cheaper to make the tooth 40 considerably narrower than the full width 56 of the contact surface 50 of the fastening nut 34 in order to obtain an even sharper scratching effect. In this case, it can be advantageous to arrange a plurality of teeth at radially different distances R from the axis of the nut 34, the difference in distance in each case corresponding approximately to the width 54 of the individual teeth 40 or also being slightly smaller.
  • the insulating layer 44 would be removed in strips from the individual teeth, so that after z. B. a full turn of the nut 34 the paint would be scraped in a manner that would correspond to the staggered width of the teeth 40.
  • the fastening nut shown in FIG. 3 can be solid, but, as will be explained in more detail below, it can also be punched out of sheet metal and / or deep-drawn. result in considerable material savings.
  • the fastening nut is then preferably made of sheet steel, because steel can be machined particularly well in the form specified and sufficient stability is ensured even when thin-walled material is used.
  • FIG. 7 shows, in a view of one of the two support surfaces, a fastening nut 134 with teeth arranged on the support surface, which can be designed like the teeth according to FIG. 4 or, in a further development, are provided with teeth that have a special shape
  • FIG. 7 see there the reference numbers 84a, 84b, 84c and in FIG. 8, another embodiment of a stamped or deep-drawn fastening nut, the reference numbers 96 and 98.
  • the fastening nut shown in FIGS. 7 and 8 and in the cross-sectional illustration of FIG. 9 the fastening nut is in the form of a can, which in the cover 70 and in the base 72 has an opening 74 and 76, respectively, with an upset thread-bearing edge 78 or 80.
  • the contact surface can have teeth which may be different. have it manufactured even more cheaply.
  • FIG. 7 shows four different forms of such punched-out areas 84a, 84b, 84c and 84d.
  • the fastening nut shown in FIGS. 7 to 9 can be formed by deep drawing or pressing in one, at most two working steps.
  • the deep-drawing tools required for this are complex, but allow simple and extremely inexpensive manufacture.
  • the fastening nut can also have the shape of a washer 134, the square or hexagonal circumference of which has teeth 96, 98 pointing to both sides, see FIG. 8, which are formed by U-shaped or V-shaped stampings which are bent obliquely out of the plane of the washer.
  • the stampings are preferably directed inwards starting from the edge or attached to the edge or in the vicinity of the edge, the bent-out part pointing in the tightening direction, see reference numerals 96 and 98 in FIG. 8 and reference numerals 84a, 84b, 84c and 84d in FIG. 7 .
  • the punchings 96, 98 shown in FIG. 8 are each formed by a strip of material bent out like a tongue out of the plane of the disk-like fastening nut, the tip of which forms the respective scratching tooth. 8 shows three such scratching teeth 96, 98, 100, which point in one direction, for example. At the three still free hexagon edges provided with the reference number 104, three scratching teeth (not shown) pointing in the other direction could be provided, which in turn ensures that on the one hand the disk-like fastening gung nut 134 can not be installed incorrectly, on the other hand, a uniform load on the nut due to the symmetrical arrangement of the scratching teeth arranged on one side is achieved.
  • the disk-like fastening nut including the scraper teeth, can be punched out in one operation, the tongues pointing in both directions being able to be produced simultaneously by appropriate design of the punching tool.
  • machining forces are rather applied in that the opposing tool parts, which grip the two sides of the fastening nut, engage the fastening nut while simultaneously pressing and slightly twisting the tool halves against one another, thereby pressing out the material 42 and the depression 48 in one operation on both sides for everyone generate teeth to be generated simultaneously.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)
  • Elimination Of Static Electricity (AREA)
  • Lock And Its Accessories (AREA)
  • Patch Boards (AREA)

Claims (15)

1. Ecrou de fixation (34) pour la fixation de dispositifs de fermeture en métal (10) pour portes d'armoires de commutation, dans lesquels le dispositif de fermeture (10) qui traverse une paroi métallique (26) est mis à la masse par contact électrique avec la paroi métallique (26), caractérisé en ce que l'écrou de fixation (34) est en même temps écrou de mise à la masse, et en ce que les deux faces (50) de l'écrou de fixation (34) sont munies de dents (40) aiguës dans le sens du serrage et dont la pointe fait saillie sur la face de contact (50) pour rayer des couches (74) non conductrices, notammen des couches de vernis et d'oxyde, sur la paroi métallique (26), pour établir un contact électrique entre la face de contact (50) de l'écrou de fixation (34) et la paroi métallique (26) et pour ainsi rendre superflues d'autres mesures de mise à la masse, chaque dent (40) ayant une largeur (54) plus petite que la largeur (56) de la section de la face de contact (50) de l'écrou de fixation (34).
2. Ecrou de fixation selon la revendication 1, caractérisé en ce que sont prévus des dents (40) se faisant face radialement.
3. Ecrou de fixation selon la revendication 2, caractérisé en ce que lorsque le pourtour de l'écrou de fixation est hexagonal une dent est disposée dans chaque angle (fig. 3).
4. Ecrou de fixation selon l'une des revendications 1 à 3, caractérisé en ce que chaque dent (40) est formée par un refoulement de matière.
5. Ecrou de fixation selon l'une des revendications 1 à 4, caractérisé en ce qu'en amont de chaque dent (42) par rapport au sens de serrage est prévu un renfoncement (48) qui reçoit la matière (46) enlevée par rayure.
6. Ecrou de fixation selon la revendication 5, caractérisé en ce que le renfoncement (48) est obtenu en produisant le refoulement de matière (42).
7. Ecrou de fixation selon la revendication 6, caractérisé en ce que chaque dent (40) dépasse, après sa fabrication, d'environ 0,2 à 0,4 mm au-dessus de la face de contact (50) de l'écrou de fixation (34).
8. Ecrou de fixation selon l'une des revendications 1 à 7, caractérisé en ce que chaque dent (40) a une largeur (54) beaucoup plus petite que la largeur (56) de la section de la face de contact (50) de l'écrou de fixation (34), et en ce que plusieurs dents (40) sont disposées chacune à une autre distance (R,, R2, R3) de l'axe de l'écrou.
9. Ecrou de fixation selon la revendication 8, caractérisé en ce que sur au moins une partie du pourtour de contact de l'écrou de fixation (34) les dents (40) sont disposées en spirale à une distance radiale Ri, R2, R3 (fig. 6), les différences de distance r = R2 - R1 = R3 - R2 ... étant sensiblement égales ou un peu inférieures à la largeur de dent (54).
10. Ecrou de fixation selon l'une des revendications 1 à 9, caractérisé en ce que l'écrou de fixation (34; 134) y compris les dents bilatérales (42; 84; 102) est fabriqué par emboutissage profond et/ou à la presse en une ou deux opérations.
11. Ecrou de fixation selon la revendication 10, caractérisé en ce que l'écrou de fixation a la forme d'une plaquette (134) dont Io pourtour tétra- ou hexagonal porte des dents (96, 98) pointant des deux côtés, formées par des emboutis en forme d'U ou de V (84 a, b, c, d) recourbés en biais hors du plan de la plaquette.
12. Ecrou de fixation selon la revendication 10, caractérisé en ce que l'écran de fixation (34) est découpé et/ou obtenu par emboutissage profond à partir de tôle métallique.
13. Ecrou de fixation selon la revendication 12, caractérisé en ce que l'écrou de fixation a la forme d'une boîte (fig. 9) qui, dans le couvercle (70) et dans le fond (72), comporte une percée ronde disposée coaxialement (74 resp. 76) ayant un bord refoulé (78 resp. 80) porteur d'un filetage, et dont le pourtour est formé à la presse en carré ou en hexagone, les dents étant formées par des emboutis (84) en forme d'U ou de V recourbés en biais vers l'extérieur hors du plan de la face latérale.
14. Ecrou de fixation selon la revendication 12 ou 13, caractérisé en ce que la découpure, partant de préférence du bord, est dirigée vers l'intérieur ou est disposée au bord ou près du bord, la partie recourbée pointant dans la direction du serrage.
15. Ecrou de fixation selon la revendication 6, caractérisé en ce que les refoulements de matière pour la formation simultanée des dents (40) et des renforcements (48) sont produits par un outil qui, pénétrant en biais dans la matière en direction de la pointe de la dent à former (42), peut être appliqué sur les faces latérales (50) de l'écrou de fixation.
EP80100170A 1979-09-08 1980-01-15 Ecrou de fixation de fermeture de porte d'armoire électrique pour la fixation de fermetures en métal pour des portes d'armoire électrique Expired - Lifetime EP0025472B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80100170T ATE10048T1 (de) 1979-09-08 1980-01-15 Befestigungsmutter zur befestigung von aus metall bestehenden verschluessen fuer schaltschranktueren.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792936405 DE2936405A1 (de) 1979-09-08 1979-09-08 Erdungsmutter
DE2936405 1979-09-08

Publications (3)

Publication Number Publication Date
EP0025472A1 EP0025472A1 (fr) 1981-03-25
EP0025472B1 true EP0025472B1 (fr) 1984-10-24
EP0025472B2 EP0025472B2 (fr) 1991-07-10

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ID=6080419

Family Applications (1)

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EP80100170A Expired - Lifetime EP0025472B2 (fr) 1979-09-08 1980-01-15 Ecrou de fixation de fermeture de porte d'armoire électrique pour la fixation de fermetures en métal pour des portes d'armoire électrique

Country Status (3)

Country Link
EP (1) EP0025472B2 (fr)
AT (1) ATE10048T1 (fr)
DE (2) DE2936405A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19505227C1 (de) * 1995-02-16 1996-07-11 Schulte Gmbh & Co Kg L Erdungsmutter

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3932939B4 (de) * 1989-10-03 2007-09-20 Dieter Ramsauer Mittels Erdungs- und/oder Befestigungsfeder in dem Durchbruch einer Blechwand, wie Schaltschranktür befestigbarer Verschluß
DE8911765U1 (fr) * 1989-10-03 1991-01-31 Ramsauer, Dieter, 5620 Velbert, De
DE4006706C2 (de) * 1990-03-03 1999-04-08 Dieter Ramsauer Vorreiberverschluß für Klappen, Seitenverkleidung, oder dgl. aus dünnem Wandmaterial
DE9105667U1 (fr) * 1991-05-07 1991-07-04 Steinbach & Vollmann Gmbh & Co, 5628 Heiligenhaus, De
DE9310330U1 (de) * 1993-07-12 1994-11-17 Dirak Dieter Ramsauer Konstruk Vorreiberverschluß zur Befestigung von Klappen, Seitenverkleidungen, für das Schließen von Türen o.ä., die aus elektrisch leitendem, mit oberflächlicher Isolierschicht versehenem Wandmaterial, wie lackiertem Stahlblech bestehen
DE29904771U1 (de) * 1999-03-16 1999-07-08 Emka Beschlagteile Stangenverschluß mit Erdungseinrichtung
GB2417367A (en) * 2004-08-19 2006-02-22 Richard Henry Pearce Electrical earthing nut
GB2454643B (en) 2007-07-20 2012-02-08 Container Components Europ Ltd A Lock assembley
DE102013226768A1 (de) * 2013-12-19 2015-06-25 Vega Grieshaber Kg Mutter
CN108710059A (zh) * 2018-08-23 2018-10-26 吕清胜 一种煤矿井下人工远方漏电试验装置

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE460955C (de) * 1928-06-08 Ernst Welker Schraubenmuttersicherung
DE319339C (de) * 1918-09-25 1920-03-04 Aeg Elektrisch leitende Verbindung
US2112494A (en) * 1937-11-02 1938-03-29 Illinois Tool Works Locking means for screw threaded fasteners
DE1034739B (de) * 1955-04-06 1958-07-24 Siemens Ag Erdungs- oder Nullungsanordnung fuer gekapselte elektrische Verteilungsanlagen
DE1090468B (de) * 1956-04-19 1960-10-06 Illinois Tool Works Mit Gewinde versehenes Befestigungselement
DE1489563B2 (de) * 1964-10-26 1970-02-05 Trilux-Lenze KG, 5760 Neheim-Hüsten Zahnunterlegscheibe zur Herstellung einer elektrischleitenden Verbindung
DE1230876B (de) * 1964-11-30 1966-12-22 Alois Schiffmann Dipl Kfm Klemme zur Kontaktgabe an einem elektrischen Leiter, insbesondere zum Erden einer Schiene
FR1487667A (fr) * 1966-07-25 1967-07-07 Illinois Tool Works Rondelle élastique de freinage bombée
GB1283036A (en) * 1968-11-07 1972-07-26 Albert Leonard Pike Improvements in and relating to nut like securing devices for securing or locking electric fittings or components
US3528050A (en) * 1969-05-02 1970-09-08 Holub Ind Inc Push-on type grounding clip
GB1298759A (en) * 1970-03-09 1972-12-06 Albert Leonard Pike Improvements in and relating to nuts
JPS5111031Y1 (fr) * 1970-03-24 1976-03-25
CA969846A (en) * 1972-11-02 1975-06-24 Julius P. Andrasik Reducing assembly
US4060301A (en) * 1974-03-12 1977-11-29 Beatty Albert W Electrical connector for transmission line insulators
DE7621270U1 (de) † 1976-07-06 1976-12-23 Fa. Emil Krachten Jun., 5620 Velbert Stangenverschluss
DE2641177A1 (de) * 1976-09-13 1978-03-16 Wolf Dipl Ing Riebling Sicherung fuer schrauben oder muttern gegen unbeabsichtigtes loesen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19505227C1 (de) * 1995-02-16 1996-07-11 Schulte Gmbh & Co Kg L Erdungsmutter

Also Published As

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DE2936405A1 (de) 1981-03-26
DE3069475D1 (en) 1984-11-29
ATE10048T1 (de) 1984-11-15
EP0025472B2 (fr) 1991-07-10
EP0025472A1 (fr) 1981-03-25

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