Locking wall hanger

Abstract

The invention provides a locking wall hanger having a pointed end, which is designed to create a hole in the wall as the hanger is inserted therethrough. Whereas a self-boring tip penetrates the wall and embeds itself in the rear wall surface a mid-parabolic portion of the hanger is adjusted to provide a spring force for locking the hanger to the wall. In order to compensate for an undue tilt of the hanger in its final assembly position, the angle between a hook portion protruding from the wall's front side and shank portion penetrating the wall is smaller than 90°. Further the invention provides an adapter piece being adapted to be supported by the hanger.

1 . A wall hanger ( 10 ) for mounting in a wall for hanging objects thereon comprising a one-piece metal wire having:
 a wall penetrating tail portion ( 20 ) with a pointed free end ( 22 ) being adapted to penetrate a wall,   a resilient C-shaped intermediate portion ( 18 ) adjacent to the tail portion ( 20 ),   a substantially straight shank portion ( 16 ) adjacent to the intermediate portion ( 18 ) being adapted to penetrate the wall ( 30 ) upon locking of the hanger in a final assembly position,   a hook portion ( 11 ) adjacent to the shank portion ( 16 ) having a hook-like geometry and being adapted to receive objects for hanging thereon,   wherein at an intermediate assembly position by insertion of the first metal wire into the wall ( 30 ) from the wall's front side, the pointed tail portion ( 20 ) contacting a rear side of the wall ( 30 ) and in response to further insertion of the metal wire, the C-shaped intermediate portion ( 18 ) being adapted to be resiliently deformed applying a spring force to the tail portion ( 20 ) and providing a locking of the first metal wire in the wall ( 30 ) when reaching a final assembly position,   wherein the hook portion ( 11 ) further comprises an abutment piece ( 14 ) being adapted to abut against the wall's front side when reaching the final assembly position, the abutment piece ( 14 ) extending at an angle of less than 90° with respect to the direction of elongation of the adjacent shank portion ( 16 ).   
   
   
       2 . The hanger according to  claim 1 , wherein the abutment piece ( 14 ) is adapted to abut against the wall's front side almost along its entire straight section. 
   
   
       3 . The hanger according to  claim 1 , wherein the angle between the elongation of the abutment piece ( 14 ) and the elongation of the shank portion ( 16 ) is between 60° and 85°, preferably between 65° and 75°, preferably around 70°. 
   
   
       4 . The hanger according to  claim 1 , wherein the angle between the elongation of the abutment piece ( 14 ) and the elongation of the shank portion ( 16 ) is adapted to compensate for a widening of the passageway ( 34 ), such that the shank portion ( 16 ) abuts against a lower side wall of the passageway ( 34 ) and that the abutment piece ( 14 ) entirely abuts against the front side of the wall ( 30 ). 
   
   
       5 . The hanger according to  claim 1 , wherein the hook portion ( 11 ) has a U-shaped geometry and comprises the abutment piece ( 14 ), an end portion ( 12 ) and an arch portion ( 26 ) connecting the abutment piece ( 14 ) and the end portion ( 12 ), wherein the abutment piece ( 14 ) and the end portion ( 12 ) extend rectilinear and substantially parallel with respect to each other. 
   
   
       6 . The hanger according to  claim 5 , wherein the arch portion ( 26 ) bends over 180°. 
   
   
       7 . The hanger according to  claim 1 , wherein the hook portion ( 11 ) comprising reinforcement means comprising a doubling of material by means of a second metal wire extending adjacent the metal wire forming the hook portion. 
   
   
       8 . The hanger according to  claim 5 , wherein the end portion ( 12 ) and the abutment piece ( 14 ) form a receptacle for a mounting part of the object. 
   
   
       9 . A wall hanger ( 10 ) for mounting in a wall for hanging objects thereon comprising a one-piece metal wire having:
 a wall penetrating tail portion ( 20 ) with a pointed free end ( 22 ) being adapted to penetrate a wall,   a resilient C-shaped intermediate portion ( 18 ) adjacent to the tail portion ( 20 ),   a substantially straight shank portion ( 16 ) adjacent to the intermediate portion ( 18 ) being adapted to penetrate the wall ( 32 ) upon locking of the hanger in a final assembly position,   a hook portion ( 11 ) adjacent to the shank portion ( 16 ) having a hook-like geometry and being adapted to receive objects for hanging thereon,   wherein at an intermediate assembly position by insertion of the metal wire into the wall ( 30 ) from the wall's front side, the pointed tail portion ( 20 ) contacting a rear side of the wall ( 32 ) and in response to further insertion of the metal wire, the C-shaped intermediate portion ( 18 ) being adapted to be resiliently deformed applying a spring force to the tail portion ( 20 ) and providing a locking of the metal wire in the wall ( 32 ) when reaching a final assembly position,   wherein the hook portion ( 11 ) has a U-shaped geometry and comprises an abutment piece ( 14 ), an end portion ( 12 ) and an arch portion ( 26 ) connecting the abutment piece ( 14 ) and the end portion ( 12 ), wherein the abutment piece ( 14 ) and the end portion ( 12 ) extend rectilinear and substantially parallel with respect to each other.   
   
   
       10 . The hanger according to  claim 9 , wherein the arch portion ( 26 ) bends over 180° and wherein the hook portion ( 11 ), the tail portion ( 20 ), the intermediate portion ( 18 ) and the shank portion ( 16 ) extend in a common plane. 
   
   
       11 . The hanger according to  claim 9 , wherein the abutment piece ( 14 ) and the end portion ( 12 ) form a receptacle for a mounting part of the object, the geometry of the mounting part and the distance between the abutment piece ( 14 ) and the end portion ( 12 ) are adapted to each other to provide a tight fitting of the mounting part in the receptacle. 
   
   
       12 . The hanger according to  claim 9 , wherein the abutment piece ( 14 ) is adapted to abut against the wall's front side almost along its entire straight section. 
   
   
       13 . The hanger according to  claim 9 , wherein the angle between the elongation of the abutment piece ( 14 ) and the elongation of the shank portion ( 16 ) is between 60° and 85°, preferably between 65° and 75°, preferably around 70. 
   
   
       14 . The hanger according to  claim 9 , wherein the angle between the elongation of the abutment piece ( 14 ) and the elongation of the shank portion ( 16 ) is adapted to compensate for a widening of the passageway ( 34 ), such that the shank portion ( 16 ) abuts against a lower side wall of the passageway ( 34 ) and that the abutment piece ( 14 ) entirely abuts against the front side of the wall ( 30 ). 
   
   
       15 . An adapter piece being adapted for hanging on a hanger according to  claim 1  comprising at its rear, wall-facing side a receptacle having a geometry being corresponding to the shape of the hook portion ( 11 ) of the hanger. 
   
   
       16 . The adapter piece according to  claim 15 , further comprising a rod-like appendix ( 44 ) being adapted to be tightly squeezed between the end portion ( 12 ) and the abutment piece ( 14 ) of the hanger. 
   
   
       17 . The adapter piece according to  claim 15 , further comprising at least one shaft ( 54 ) for guiding a pin-like fastening element to be driven into the wall. 
   
   
       18 . The adapter piece according to  claim 17 , wherein the shaft ( 54 ) is pointing downwards at an angle of between 20° and 40° with respect to the surface normal of the adapters rear side ( 42 ) being adapted to abut against a wall. 
   
   
       19 . The adapter piece according to  claim 17 , wherein the shaft ( 54 ) is pointing sidewards at an angle of between 20° and 40° with respect to the surface normal of the adapters rear side ( 42 ) being adapted to abut against a wall. 
   
   
       20 . The adapter piece according to  claim 15  further comprising a support portion ( 48 ) extending substantially perpendicular with respect to the wall and being adapted to support an object. 
   
   
       21 . The adapter piece according to  claim 20 , further comprising a resilient clamp portion ( 50 ) being disposed at a distance from the support portion ( 48 ) in order to form a gap for inserting the object to be supported by the support portion ( 48 ). 
   
   
       22 . The adapter piece according to  claim 15 , further comprising a slit-like aperture ( 64 ) for receiving the hook portion ( 11 ) of the hanger ( 10 ). 
   
   
       23 . The adapter piece according to  claim 22 , further comprising a slanted guiding section ( 66 ) at its rear side being disposed adjacent the slit-like aperture ( 64 ).