AT75959B - Self-tightening drill chucks. - Google Patents

Self-tightening drill chucks.

Info

Publication number
AT75959B
AT75959B AT75959DA AT75959B AT 75959 B AT75959 B AT 75959B AT 75959D A AT75959D A AT 75959DA AT 75959 B AT75959 B AT 75959B
Authority
AT
Austria
Prior art keywords
self
drill
clamping
semi
tightening drill
Prior art date
Application number
Other languages
German (de)
Original Assignee
Eikar Werkzeuge G M B H
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 Eikar Werkzeuge G M B H filed Critical Eikar Werkzeuge G M B H
Application granted granted Critical
Publication of AT75959B publication Critical patent/AT75959B/en

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  • Gripping On Spindles (AREA)

Description

  

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 
 EMI1.2 
 

 <Desc/Clms Page number 2> 

 
 EMI2.1 
 die entsprechende Schlitzwand anlegt. In   geschlossenen Bohrungen w   des Körpers a liegen Federn   tt,   die auf Stifte n' einwirken, welche nach dem Schlitz zu vorstehen und vorn auf den Klemmkörper drücken. Diese federbelasteten Stifte n' wirken derart schräg auf die radial stehenden Seitenflächen der   Klemmkörper   ein, dass letztere sowohl radial nach aussen gegen die Exzenterflächen, als auch seitlich gegen die entsprechenden Schlitzwandungen gedrückt werden. 



  Bei dem gezeichneten Beispiel ist angenommen, dass der Bohrer im Betriebe im   Uhrzcigerfiunc     umtauft,   also in der Richtung des Pfeiles in Fig. 2. Die Feder drückt also entgegen dieser Bewegungsrichtung gegen die Schlitzwand. 



   Unterhalb der Ansätze k sind ebenso geformte Ansätze g', h' und i' an der Rückseite   des   Klemmkörper vorgesehen, welche sich gegen die   Exzentonächen   der Hülse   legen. Wie nn   aus Fig. 4 erkennt, hat der Klemmkörper h nur einen Ansatz   h',   welcher mit dem   Exzenter e   zusammenwirkt. Die beiden anderen Backen g und i haben je zwei Ansätze i' bzw. g', wobei 
 EMI2.2 
 
 EMI2.3 
 dass das Bohrfutter nach der Erfindung sich bei grosser   Leistungsfähigkeit durch einfache Bauart     auszeichnet.   

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 
 EMI1.1
 
 EMI1.2
 

 <Desc / Clms Page number 2>

 
 EMI2.1
 creates the corresponding diaphragm wall. In closed bores w of the body a there are springs tt which act on pins n 'which protrude towards the slot and press the front of the clamping body. These spring-loaded pins n 'act obliquely on the radially standing side surfaces of the clamping bodies in such a way that the latter are pressed both radially outward against the eccentric surfaces and laterally against the corresponding slot walls.



  In the example shown, it is assumed that the drill is renamed in operation in the clockwise function, that is in the direction of the arrow in FIG. 2. The spring thus presses against the direction of movement against the diaphragm wall.



   Below the projections k, similarly shaped projections g ', h' and i 'are provided on the rear side of the clamping body, which rest against the eccentric surfaces of the sleeve. As nn from FIG. 4 recognizes, the clamping body h has only one shoulder h ', which cooperates with the eccentric e. The other two jaws g and i each have two approaches i 'and g', where
 EMI2.2
 
 EMI2.3
 that the drill chuck according to the invention is characterized by a simple design with great performance.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRÜCHE : 1. Selbstspannendes Bohrfutter mit in radialen Schlitzen schwenkbaren und mitteis EMI2.4 <Desc/Clms Page number 3> EMI3.1 seine als Laufnäche dienenden halbzylindrischen Ansätze (h') in der Mitte seiner Lange hat, während bei den anderen Klemmkörpern (g, i) je zwei in bezug auf die Längsrichtung symmetrisch liegende halbzylindrische Laufflächen 'bzw. i') vorgesehen sind, welchen entsprechende, EMI3.2 so dass die resultierenden, radial gerichteten Druckkräfte unter Vermittlung der Klemmbacken in einer gemeinschaftlichen, senkrecht zur Bohret Mhsc stehenden Mittelebene klemmend auf den Bohrer einwirken. PATENT CLAIMS: 1. Self-tightening drill chuck with swiveling and center ice in radial slots EMI2.4 <Desc / Clms Page number 3> EMI3.1 its semi-cylindrical lugs (h ') serving as running surfaces in the middle of its length, while the other clamping bodies (g, i) each have two semi-cylindrical running surfaces' or i ') are provided, which corresponding, EMI3.2 so that the resulting, radially directed compressive forces act in a clamping manner on the drill in a common center plane perpendicular to the drill bit Mhsc, mediated by the clamping jaws.
AT75959D 1913-10-04 1914-09-22 Self-tightening drill chucks. AT75959B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE75959X 1913-10-04

Publications (1)

Publication Number Publication Date
AT75959B true AT75959B (en) 1919-03-26

Family

ID=5637297

Family Applications (1)

Application Number Title Priority Date Filing Date
AT75959D AT75959B (en) 1913-10-04 1914-09-22 Self-tightening drill chucks.

Country Status (1)

Country Link
AT (1) AT75959B (en)

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