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CH159904A - Screw dowel for insertion in a plate. - Google Patents

Screw dowel for insertion in a plate.

Info

Publication number
CH159904A
CH159904A CH159904DA CH159904A CH 159904 A CH159904 A CH 159904A CH 159904D A CH159904D A CH 159904DA CH 159904 A CH159904 A CH 159904A
Authority
CH
Switzerland
Prior art keywords
screw
hole
plate
insert
piece
Prior art date
Application number
Other languages
German (de)
Inventor
Bugmann Urban
Original Assignee
Bugmann Urban
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 Bugmann Urban filed Critical Bugmann Urban
Publication of CH159904A publication Critical patent/CH159904A/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/04Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
    • F16B13/08Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate or non-separate gripping parts moved into their final position in relation to the body of the device without further manual operation
    • F16B13/0891Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate or non-separate gripping parts moved into their final position in relation to the body of the device without further manual operation with a locking element, e.g. wedge, key or ball moving along an inclined surface of the dowel body
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00Nuts or like thread-engaging members
    • F16B37/12Nuts or like thread-engaging members with thread-engaging surfaces formed by inserted coil-springs, discs, or the like; Independent pieces of wound wire used as nuts; Threaded inserts for holes
    • F16B37/122Threaded inserts, e.g. "rampa bolts"

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dowels (AREA)
  • Connection Of Plates (AREA)

Description

  

  Schraubendübel zum Einsetzen in eine Platte.    Gegenstand vorliegender Erfindung ist  ein Schraubendübel, welcher gekennzeichnet  ist durch ein Einsatzstück mit Loch zum  Einstecken einer Schraube und mit einem  zungenförmigen, mit einer Keilfläche     ver-          sehenen    Ansatz, auf welchem ein das Mutter  gewinde aufweisendes Keilstück beim An  ziehen der Schraube so verschiebbar ist, dass  das Einsatzstück im Loch der Platte fest  geklemmt wird.

      Vorliegende Erfindung gestattet, Befesti  gungsschrauben auf solche dünnen Platten,  wie sie zum Beispiel für     Marmor-Schalt-          tafeln    verwendet werden,     befestigen    zu kön  nen, ohne besondere     Muttern    auf der Rück  seite der Tafeln zu benötigen, und auch eine  solche Befestigung zu ermöglichen in Fäl  len, wo die Rückseite der Tafel unzugäng  lich ist.  



  In beiliegender Zeichnung ist ein Aus  führungsbeispiel des Schraubendübels darge  stellt; darin ist:         Fig.    1 ein     senkrecher        Schnitt    durch einen  in eine Schalttafel eingesetzten Schrauben  dübel mit Randwulst,       Fig.    2 eine Hinteransicht des Einsatz  stückes und       Fig.    3 eine Vorderansicht des Mutter  stückes.    In der Zeichnung bezeichnet 1 einen Teil  der     Schalttafelplatte    mit einem Loch 2, in  welches ein Schraubendübel 3 eingesetzt ist.

    Sein Einsatzstück 4, welches eine dem Loch  entsprechende Zylinderform besitzt, weist  eine Vorderwand 5 mit einem     Einsteekloch    6  für die Schraube 7 und einen an. diese  Vorderwand angeschlossenen     zungenförmigen,     mit einer Keilfläche 8     versehenen    Ansatz 9  auf.

   Auf dieser Keilfläche sitzt ein mit dem       Muttergewinde        versehenes,    der Lochform  teilweise angepasstes     Keilstück    10, welches  beim festeren Anziehen der Schraube ? auf  der Keilfläche 8 verschoben wird und da  durch sich gegen die obere Lochwand an-      legt und damit das     Einsatzstück    im Loch  festklemmt; die Schraube kann     nun    wieder  entfernt werden, um das auf der     Platte    zu  befestigende     Stück        in    Stellung zu     bringen     und     mittelst    der Schraube wieder festzu  schrauben.  



  Hierbei ist zu beachten, dass das Loch  im Einsatzstück so weit gewählt ist, dass  die Schraube nach dem Festklemmen des  Keilstückes die obere     Wandung    des Loches  nicht berührt, weil sonst beim Berühren das  Keilstück mit seiner Achse sich beim An  stossen der Schraube an der genannten     obern     Lochwand schief stellen könnte und dem  ungehinderten Aus- und Einschrauben der  Schraube in das Keilstück hinderlich würde.  



  Um auf alle Fälle während des An  ziehens der Schraube ein Zurückziehen des       Einsatzstückes    4 zu vermeiden, kann an der  Vorderwand dieses Stückes ein Randwulst  11 vorgesehen werden, so dass das Einsatz  stück in der     Platte    1 gegen Verschiebung  nach     innen    gesichert ist (siehe     Fig.    1).



  Screw dowel for insertion in a plate. The subject of the present invention is a screw anchor which is characterized by an insert piece with a hole for inserting a screw and with a tongue-shaped projection provided with a wedge surface, on which a wedge piece having the nut thread is displaceable when the screw is tightened the insert is firmly clamped in the hole in the plate.

      The present invention allows fastening screws to be attached to thin plates such as those used for marble switchboards, for example, without the need for special nuts on the back of the panels, and also to enable such a fastening in cases len where the back of the board is inaccessible.



  In the accompanying drawing, an exemplary embodiment from the screw anchor is Darge provides; therein: Fig. 1 is a vertical section through a screw plug inserted into a control panel with an edge bead, Fig. 2 is a rear view of the insert piece and Fig. 3 is a front view of the nut piece. In the drawing, 1 denotes a part of the panel board with a hole 2 into which a screw anchor 3 is inserted.

    Its insert piece 4, which has a cylindrical shape corresponding to the hole, has a front wall 5 with a piercing hole 6 for the screw 7 and one. this front wall connected tongue-shaped projection 9 provided with a wedge surface 8.

   On this wedge surface there is a wedge piece 10 provided with the nut thread and partially adapted to the shape of the hole, which wedge piece 10 when tightening the screw? is displaced on the wedge surface 8 and as a result rests against the upper hole wall and thus clamps the insert in the hole; the screw can now be removed again in order to bring the piece to be fastened to the plate in position and to screw it tight again by means of the screw.



  It should be noted here that the hole in the insert is chosen so that the screw does not touch the upper wall of the hole after the wedge has been clamped, because otherwise the wedge with its axis will collide with the above-mentioned upper wall when the screw is touched Could put the perforated wall at an angle and the unhindered screwing in and out of the screw in the wedge would be a hindrance.



  In order to prevent the insert piece 4 from being withdrawn while the screw is being tightened, an edge bead 11 can be provided on the front wall of this piece so that the insert piece is secured in the plate 1 against inward displacement (see FIG. 1 ).

 

Claims (1)

PATENTANSPRUCH: Schraubendübel zum Einsetzen in eine Platte, gekennzeichnet durch ein Einsatzstück mit Loch zum Einstecken der Schraube und mit einem zungenförmigen, mit einer Keil fläche versehenen Ansatz, auf welchem ein das Muttergewinde aufweisendes Keilstück beim Anziehen der Schraube so verschiebbar ist, dass das Einsatzstück im Loch der Platte festgeklemmt wird. Claim: screw anchor for insertion in a plate, characterized by an insert piece with a hole for inserting the screw and with a tongue-shaped, with a wedge surface provided approach, on which a wedge piece having the nut thread when tightening the screw can be moved so that the insert piece in Hole of the plate is clamped. UNTERANSPRÜCHE: 1. Schraubendübel nach Patentanspruch, da durch gekennzeichnet, dass das Einsatz- stück an seiner das Schraubenloch auf weisenden Vorderwand eine Randwulst besitzt; mittelst welcher das Einsatzstück am zu weiten Eindringen in das Loch der Platte verhindert wird. 2. Schraubendübel nach Patentanspruch, bei welchem das Schraubenloch in der Vor derwand des Einsatzstückes so weit ge wählt ist, dass die Schraube nach dem Festklemmen des Dübels in der Platte die obere Wand des Schraubenloches nicht berührt. SUBClaims: 1. Screw anchor according to patent claim, characterized in that the insert piece has an edge bead on its front wall facing the screw hole; by means of which the insert is prevented from penetrating too far into the hole in the plate. 2. Screw dowel according to claim, in which the screw hole in the front derwand of the insert is selected so far that the screw does not touch the top wall of the screw hole after clamping the dowel in the plate.
CH159904D 1932-01-12 1932-01-12 Screw dowel for insertion in a plate. CH159904A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH159904T 1932-01-12

Publications (1)

Publication Number Publication Date
CH159904A true CH159904A (en) 1933-02-15

Family

ID=4413595

Family Applications (1)

Application Number Title Priority Date Filing Date
CH159904D CH159904A (en) 1932-01-12 1932-01-12 Screw dowel for insertion in a plate.

Country Status (1)

Country Link
CH (1) CH159904A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2769990A (en) * 1953-06-15 1956-11-13 Ruben L Pawsat Wedge nut forging machine
DE2901986A1 (en) * 1978-01-20 1979-07-26 Stellan Oernberg ANCHORING DEVICE FOR AN OPENING, E.G. FOR ONE PIPE END

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2769990A (en) * 1953-06-15 1956-11-13 Ruben L Pawsat Wedge nut forging machine
DE2901986A1 (en) * 1978-01-20 1979-07-26 Stellan Oernberg ANCHORING DEVICE FOR AN OPENING, E.G. FOR ONE PIPE END
US4257308A (en) * 1978-01-20 1981-03-24 Oernberg Stellan Anchoring device for an opening, e.g. a tube end

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