DE812298C - Stud extractor - Google Patents
Stud extractorInfo
- Publication number
- DE812298C DE812298C DEP50296A DEP0050296A DE812298C DE 812298 C DE812298 C DE 812298C DE P50296 A DEP50296 A DE P50296A DE P0050296 A DEP0050296 A DE P0050296A DE 812298 C DE812298 C DE 812298C
- Authority
- DE
- Germany
- Prior art keywords
- stud bolt
- bearing body
- extractor according
- stud
- drive shaft
- 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
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
- B25B23/103—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means for gripping threaded studs
-
- 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
- B25B13/00—Spanners; Wrenches
- B25B13/48—Spanners; Wrenches for special purposes
- B25B13/50—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes
- B25B13/5008—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects
- B25B13/5016—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects by externally gripping the pipe
- B25B13/5075—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects by externally gripping the pipe using jaws moving along radial cams or by excentric disks in a cage structure at least partially surrounding the pipe
Description
Der erfindungsgemäß-e Stehbolzenausschrauber hat den Vorteil, daß er das Gewinde des Stehbolzens nicht beschädigt, da er diesen unmittelbar über der Austrittsstelle aus dem Masehinenteil, in das er eingeschrau#bt ist, erfaßt, also an einer Stelle, wo der Stehbolzen im allgemeinen kein Gewinde hat.The stud bolt extractor according to the invention has the advantage that he does not damage the thread of the stud bolt because it is directly above the The exit point from the part of the mass into which it is screwed is detected, that is at a point where the stud bolt is generally unthreaded.
Wie aus der Zeichnung ersichtlich ist, besteht der erfindungsgemäße Stehbolzenausschrauber aus einem Lagerkörper i, dessen Unterseite eine im Querschnitt kreisförmige Vertiefung -- aufweist. In clieser Vertiefung sitzt eine Exzenterscheibe 3, deren Scheitel ein wenig Spiel gegenüber der inneren Zylindermantelfläche der Vertiefung hat und deren Antriebswelle in einer zur Vertiefling zentralen, durchgehenden Bohrung des Lagerkorpers drehbar gelagert ist. Die Antriebswelle ragt nach oben aus dem Lagerkörper heraus und ist an diesem Ende mit Schlüsselflächen zum Ansetzen eines Schlüssels versehen, z. B. mit einem Innenvierkant. Um die Antriebswelle gegen axiale Verschiebung im Lagerkörper zu sichern, besitzt sie eine Ringnut 6, in die der Kopf einer Schraube eingreift, die von außen quer durch den Lagerkörper eingeschraubt ist.As is apparent from the drawing, the invention consists of a bearing body Stehbolzenausschrauber i, the underside of which has a circular cross-section recess - has. In this recess sits an eccentric disk 3, the apex of which has a little play in relation to the inner cylindrical surface of the recess and whose drive shaft is rotatably mounted in a central, continuous bore of the bearing body. The drive shaft protrudes upwards from the bearing body and is provided at this end with wrench surfaces for attaching a key, e.g. B. with a square socket. In order to secure the drive shaft against axial displacement in the bearing body, it has an annular groove 6 in which the head of a screw engages which is screwed in from the outside across the bearing body.
Der Lagerkörper hat noch eine zweite durchgehende Bohrung, die parallel zur zentralen Bohrung verläuft und von dieser einen solchen seitlichen Abstand hat, daß ihre Achse etwa im Bereich des Exzenterscheitels liegt' Diese Bohrung dient zur Aufnahme des Stehbolzens, und ihre Innenwände können zur Erzielung besserer Haftung aufgerauht sein. Aus dein gleichen Grunde ist die Zylindermantelfläche der Exzenterscheibe gerändelt oder kordiert. Die Unterseite der Exzenterscheibe bildet mit der Unterseite des Lagerkörpers eine Ebene, damit der Stehbolzen an der tiefsten Stelle gefaßt wird.The bearing body has a second through hole that is parallel runs to the central hole and has such a lateral distance from it, that its axis lies approximately in the area of the eccentric apex 'This hole is used to accommodate the stud bolt, and its inner walls can be used to achieve better Liability to be roughened. For the same reason, the cylinder surface is the Eccentric disc knurled or corded. Forms the underside of the eccentric disc with the underside of the bearing body a level so that the stud bolt at the deepest Place is seized.
Die Anwendung des Stehbolzenausschraubers nach der Erfindung ist sehr einfach. Der auszuschrauben-de Stehbolzen wird in die seitliche Bohrung eingeführt und darauf die Antriebswülle mittels eines aufgesetzten Schlüssels in entsprechendür Richtung gedreht. Der Stehbolzeri wird dabei zwischen Exzenterscheibeund Innenwand der seitlichen Bohrung eingeklemmt und so das Drehmoment auf ihn übertragen.The application of the stud extractor according to the invention is very great simple. The stud bolt to be unscrewed is inserted into the side hole and then the drive sleeve by means of an attached key in the corresponding door Rotated direction. The stud bolt is placed between the eccentric disc and the inner wall pinched in the side hole and thus transmitted the torque to it.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP50296A DE812298C (en) | 1949-07-29 | 1949-07-29 | Stud extractor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP50296A DE812298C (en) | 1949-07-29 | 1949-07-29 | Stud extractor |
Publications (1)
Publication Number | Publication Date |
---|---|
DE812298C true DE812298C (en) | 1951-08-27 |
Family
ID=7384315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEP50296A Expired DE812298C (en) | 1949-07-29 | 1949-07-29 | Stud extractor |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE812298C (en) |
-
1949
- 1949-07-29 DE DEP50296A patent/DE812298C/en not_active Expired
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