Undercut-engaging dowel

Details Undercut-engaging dowel Undercut-engaging dowel

1999-05-25

2000-10-17

Wilson, Neill

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Having separate expander means

Including sleeve and distinct tapered expander

411 30, 411 571, F16B 1304, F16B 1306

Patent

active

061321524

ABSTRACT:
A dowel including an anchor rod (2; 22) having a load application element at one of its longitudinal ends and a head (3; 23), a diameter of which increases toward the free end of the anchor rod, at its opposite end, an expansion sleeve (4; 24) having a bore through which the anchor rod (2; 22) extends and a plurality of expansion tabs (5; 25) separated from each other by longitudinal slots (6; 26) and extending from a circumferential groove (7) toward the head (3; 23), the expansion tabs (5; 25) expanding radially, upon the expansion sleeve (4; 24) being displaced over the head (3; 23), and a substantially ring-shaped member (8; 28) arranged in the circumferential groove (7) and substantially filling out the circumferential groove (7; 27) in an expanded condition of the expansion tabs (5; 25).

REFERENCES:
patent: 4929134 (1990-05-01), Bergner
patent: 4940372 (1990-07-01), Fischer
patent: 5059073 (1991-10-01), Revol et al.
patent: 5116176 (1992-05-01), Yousuke
patent: 5885031 (1999-03-01), White
patent: 5921733 (1999-07-01), Kaibach et al.
patent: 6012887 (2000-01-01), Kaibach et al.

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