CH85913A - Device for operating a screw by means of a screwdriver. - Google Patents

Device for operating a screw by means of a screwdriver.

Info

Publication number
CH85913A
CH85913A CH85913DA CH85913A CH 85913 A CH85913 A CH 85913A CH 85913D A CH85913D A CH 85913DA CH 85913 A CH85913 A CH 85913A
Authority
CH
Switzerland
Prior art keywords
screw
screwdriver
operating
screw head
scliwalberiseliwanz
Prior art date
Application number
Other languages
German (de)
Inventor
Gschwend Oskar
Original Assignee
Gschwend Oskar
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 Gschwend Oskar filed Critical Gschwend Oskar
Publication of CH85913A publication Critical patent/CH85913A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B15/00—Screwdrivers
    • B25B15/02—Screwdrivers operated by rotating the handle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B15/00—Screwdrivers
    • B25B15/001—Screwdrivers characterised by material or shape of the tool bit
    • B25B15/004—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section
    • B25B15/007—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section with blade of flat or substantially flat cross-section

Description

  

  Einrichtung zum Betätigen einer Schraube     mittelst    eines     Schraubenziehers.            C3',egeirstarrd    der Erfindung ist eine Ein  richtung zum Betätigen einer     Schraube        mittelst     eines Schraubenziehers, mit welcher     bezweckt     wird, das Abrutschen des     Schraubenzielrers     vom     Sebraubenkopfe    vermeiden     zn        können.     



  Die Zeichnung stellt die Einrichtung in  zwei Ansichten dar.     Fig.    1 zeigt die Schraube  und den     Schraubenzieher    getrennt voneinan  der,     Fig.        II    dieselben     irn        -Momente    des Ein  setzens des     Schraubenziehers    in die     Scbrau-          bennute    oder des     Abhebens    desselben von  der Schraube.  



  Der gezeichnete     konisebe    Schraubenkopf  besitzt eine     Schwalbenschwanznute        a,    in wel  che, respektive aus welcher das     entsprechend     keilförmig gestaltete Ende b des     Schrauben-          ziehers    im     Sinne    von     Fig.    2 ein- oder aus-    geführt      -erden    kann.

   Die     Sclrrauhe    kann mit       diesem    Werkzeuge betätigt     werden,    ohne     daP     dieses aus der     Schraubennrite    ausglitschen,  respektive vom Schraubenkopf abrutschen       kann.    Die     Länge    der     Keilflächen        ain    Ende       b        entspricht        ungefähr    der     Nutenlä,nge.  



  Device for operating a screw by means of a screwdriver. C3 ', egeirstarrd of the invention is a device for operating a screw by means of a screwdriver, the purpose of which is to prevent the screw target from slipping off the screw head.



  The drawing shows the device in two views. Fig. 1 shows the screw and the screwdriver separated voneinan, Fig. II the same at the moment of inserting the screwdriver into the screw groove or lifting it off the screw.



  The tapered screw head shown has a dovetail groove a into which or from which the correspondingly wedge-shaped end b of the screwdriver in the sense of FIG. 2 can be inserted or removed.

   The screw can be operated with this tool without it slipping out of the screw socket or slipping off the screw head. The length of the wedge surfaces at end b corresponds approximately to the length of the groove.

Claims (1)

PATENTANSPRUCH: Einrichtung zum Betätigen einer Schraube mittelst eines Seliraubenziehers, dadurch ge kennzeichnet, da?) der Schraubenkopf eine scliwalberiseliwanzfürmige Nut besitzt, in wel che, respektive aus welcher das entsprechend l@eilfürmig gestaltete eine Schrauhenzieherende ein- und ausgeführt werden kann. PATENT CLAIM: Device for operating a screw by means of a self-tapping screwdriver, characterized in that the screw head has a scliwalberiseliwanz-shaped groove into which, or from which the correspondingly elongated screwdriver end can be inserted and removed.
CH85913D 1919-11-10 1919-11-10 Device for operating a screw by means of a screwdriver. CH85913A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH85913T 1919-11-10

Publications (1)

Publication Number Publication Date
CH85913A true CH85913A (en) 1920-07-16

Family

ID=4342343

Family Applications (1)

Application Number Title Priority Date Filing Date
CH85913D CH85913A (en) 1919-11-10 1919-11-10 Device for operating a screw by means of a screwdriver.

Country Status (1)

Country Link
CH (1) CH85913A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2567466A (en) * 1946-04-22 1951-09-11 Robert L Bartlett Screw driver
US2631624A (en) * 1950-02-25 1953-03-17 Roland H Wright Screw driver
DE1156718B (en) * 1956-06-04 1963-10-31 Hans Pribitzer Screwdriver for slotted screws, the slot of which has a dovetail cross-section

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2567466A (en) * 1946-04-22 1951-09-11 Robert L Bartlett Screw driver
US2631624A (en) * 1950-02-25 1953-03-17 Roland H Wright Screw driver
DE1156718B (en) * 1956-06-04 1963-10-31 Hans Pribitzer Screwdriver for slotted screws, the slot of which has a dovetail cross-section

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