Patent ID: 7909338

Claim:
An adapter member for connecting a self- drilling rock anchor ( 1 ; 31 ; 69 ) with a chuck ( 6 ) of a drilling tool for transmitting a driving torque to the rock anchor, comprising a sleeve-shaped section ( 17 ; 37 ) having a coupling section ( 18 ) for connection with the chuck ( 6 ), and a bottom ( 20 ; 40 ; 60 ; 80 ) provided at an end ( 19 ; 39 ) of the sleeve-shaped section ( 17 ; 37 ) for forming a receiving space ( 21 ) for connection with an end ( 4 ; 34 ) of the rock anchor ( 1 ; 31 ; 69 ) and having a through-opening ( 22 ; 42 ; 62 ) through which a feeding nose ( 10 ) of a feeding device is extendable; and a seal ( 23 ; 43 ; 63 ; 83 ) arranged in a region of the bottom of the sleeve-shaped section ( 20 ; 40 ; 60 ; 80 ) and extending from the receiving space ( 21 ) to at least a plane (El; E 2 ; E 3 ; E 4 ) defined by the bottom ( 20 ; 40 ; 60 ; 80 ) for sealing the adapter member against the rock anchor.