CH259902A - Screwdriver. - Google Patents
Screwdriver.Info
- Publication number
- CH259902A CH259902A CH259902DA CH259902A CH 259902 A CH259902 A CH 259902A CH 259902D A CH259902D A CH 259902DA CH 259902 A CH259902 A CH 259902A
- Authority
- CH
- Switzerland
- Prior art keywords
- sleeve
- shaft
- blade
- screwdriver
- clamping ring
- Prior art date
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
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/02—Arrangements for handling screws or nuts
- B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
- B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
- B25B23/101—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means for hand-driven screw-drivers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Working Implements (AREA)
Description
Schraubenzieher. Die Erfindung betrifft einen Schrauben zieher, der sich dadurch auszeichnet, dass er einen runden Schaft, eine geschlitzte Hülse, eine im Schlitz der Hülse geführte flache Klinge und einen konischen Spannring auf weist, wobei die Hülse relativ zur Klinge ver schoben und auf dem Schaft mit Hilfe des Spannringes festgehalten werden kann.
Nachstehend wird an Hand der Zeichnung ein Ausführungsbeispiel des Erfindungs gegenstandes näher erläutert.
Fig. 1 zeigt einen erfindungsgemässen Schraubenzieher in Draufsicht, Fig. 2 im Längsschnitt, Fig. 3 in Ansieht von vorn und Fig. 4 im Querschnitt, nach der Linie A-A in Fig. 2.
Der runde Schaft 1 befindet sich einer- ends in einem üblichen Handgriff, während an seiner freien Stirnseite ein Schlitz 1a zur Aufnahme der Klinge 2 eingefräst ist. Das freie Ende der Klinge 2 ist in einem Schlitz 3a der Hülse 3 geführt. Die Hülse 3 besitzt. eine dem Schaftdurchmesser entsprechende Längsbohrung und am dem Schlitz 3a. abge kehrten Ende einen Aussenkonus mit. Längs schlitzen 3b. Die Hülse weist am Ende mit. dem Schlitz 3a zuerst eine zy lindrische und dann konisch gedrehte Aussenpartie auf.
Zum Festklemmen der Hülse 3 auf dem Schaft 1 dient der konische Spannring 4 mit einem Innenkonus entsprechend dem Aussenkonns der Hülse, der auf die Hülse aufgepresst wird. Der beschriebene Schraubenzieher gestat tet, durch einfaches Verschieben der Hülse die ausgebrochene Klinge auf einfachste Weise wieder nachzuschleifen. Um stets eine genau parallele Klinge zu haben, muss nur die Stirnseite derselben zurückgeschliffen werden, was auch von Nichtfachleuten ein wandfrei ausgeführt werden kann. Eine par allele Klinge vermeidet das Abgleiten aus den Schraubenschlitzen und gestattet ein rasche res Arbeiten.
Screwdriver. The invention relates to a screwdriver, which is characterized in that it has a round shaft, a slotted sleeve, a flat blade guided in the slot of the sleeve and a conical clamping ring, the sleeve being pushed relative to the blade and on the shaft with it Can be held with the help of the clamping ring.
An embodiment of the subject invention is explained in more detail with reference to the drawing.
1 shows a top view of a screwdriver according to the invention, FIG. 2 shows a longitudinal section, FIG. 3 shows a view from the front, and FIG. 4 shows a cross-section along the line A-A in FIG.
The round shaft 1 is located at one end in a conventional handle, while a slot 1a for receiving the blade 2 is milled into its free end face. The free end of the blade 2 is guided in a slot 3 a in the sleeve 3. The sleeve 3 has. a longitudinal bore corresponding to the shaft diameter and on the slot 3a. turned away end with an outer cone. Slit longitudinally 3b. The sleeve has at the end. the slot 3a first has a cylindrical and then a conically turned outer part.
The conical clamping ring 4 with an inner cone corresponding to the outer cone of the sleeve, which is pressed onto the sleeve, serves to clamp the sleeve 3 onto the shaft 1. The described screwdriver gestat tet to regrind the broken blade in the simplest way by simply moving the sleeve. In order to always have an exactly parallel blade, only the face of the same has to be ground back, which can also be carried out perfectly by non-specialists. A parallel blade avoids slipping out of the screw slots and allows faster work.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH259902T | 1947-04-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH259902A true CH259902A (en) | 1949-02-15 |
Family
ID=4473272
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH259902D CH259902A (en) | 1947-04-29 | 1947-04-29 | Screwdriver. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH259902A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3135306A (en) * | 1958-10-14 | 1964-06-02 | Mangerian George | Screw driver attachment |
US3623522A (en) * | 1970-04-22 | 1971-11-30 | Fritz L Lindberg | Screwdriver with replaceable nib |
US3633639A (en) * | 1968-08-14 | 1972-01-11 | Tore L Hill | Screwdriver |
-
1947
- 1947-04-29 CH CH259902D patent/CH259902A/en unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3135306A (en) * | 1958-10-14 | 1964-06-02 | Mangerian George | Screw driver attachment |
US3633639A (en) * | 1968-08-14 | 1972-01-11 | Tore L Hill | Screwdriver |
US3623522A (en) * | 1970-04-22 | 1971-11-30 | Fritz L Lindberg | Screwdriver with replaceable nib |
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