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US 5,439,338 AGranted
Anchorage and installation tool
OwnerMikael Rosenberginventor
Life of this patent
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OwnerMikael Rosenberginventor
Estimating the term…
An anchorage arrangement in the form of a socket (1) and anchor bolts (5) for anchoring scaffolds at walls or the like. The socket (1) has an inner cruciform recess (3) with conical chamfers (4) which are adapted to the form of a conical extension (7) on the anchor bolts (5). When screwing in an anchor bolt (5), the eye (6) of a bolt (5) is placed in the recess (3) of the socket (1), whereby the conical extension (7) of the bolt (5) and the chamfers (4) cooperate, partly to guide the application of the socket (1) onto the bolt (5), and partly to stabilize the bolt (5) in the socket (1) during the operation of screwing the bolt into a wall. The socket (1) is rotated by a drill after inserting an insert pin (2) on the socket in the drill chuck. The conical extension (7) may be an integrated part of the bolt (5), but is preferably threaded on the bolt (5).
An anchorage arrangement for anchoring a member to a wall, said anchorage arrangement comprising a socket and an anchor bolt engageable in said socket, said socket having an inner recess formed by intersecting channels defining a cruciform section for said recess, said socket including an extension pin drivingly connectable to a rotary drive means so that the socket can be driven in rotation, said socket having four chamfers formed at intersecting corners of the channels of the recesses, said chamfers extending from an open end of the socket inwardly thereof and being tapered to diminish in height as the chamfers extend inwardly of the socket, said anchor bolt including a stem, an end portion on said stem and a conical extension secured to said stem, said end portion being engageable in said recess in said socket with said conical extension engaging said chamfers.
Dependencies are inferred from the claim text.