(19)
(11) EP 2 065 601 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 A2)

(48) Corrigendum issued on:
21.10.2009 Bulletin 2009/43

(43) Date of publication:
03.06.2009 Bulletin 2009/23

(21) Application number: 08170292.0

(22) Date of filing: 28.11.2008
(51) International Patent Classification (IPC): 
F16B 13/06(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA MK RS

(30) Priority: 29.11.2007 IT TO20070146 U

(71) Applicant: ITW CONSTRUCTION PRODUCTS ITALY S.r.l. con Unico Socio
35127 Padova (IT)

(72) Inventor:
  • Pisoni, Roberto
    20100, MILANO (IT)

(74) Representative: Jorio, Paolo et al
Studio Torta S.r.l. Via Viotti 9
10121 Torino
10121 Torino (IT)

   


(54) Expansion anchor


(57) An expansion anchor (1) comprising a tubular body (3), which extends along a longitudinal axis (A) and displays a deformable end portion (6) on which there are obtained longitudinal slots (7) which divide the end portion (6) itself into a series of anchoring fins (8), and an expansion nut (9), which is partially engaged onto said end portion (6) and is adapted to be displaced by a screw (2) so as to radially expand said anchoring fins (8) outwards; each anchoring fin (8) being shaped so as to display an annular ridge (10) on its end and two protruding side teeth (11), which are arranged on the side edge of said anchoring fin (8) at the two ends of the ridge (10); each anchoring fin (8) further displaying an external friction surface (8a) provided with a plurality of annular notches or cavities (18) coaxial to the longitudinal axis (A).