BAYONET GLUE DOWELL

Abstract: The device according to the present invention, that may be inserted into walls and roofs for the support of furniture, chandeliers and similar, consists of a means (1) with continuous walls shaped in such a way as to be inserted in the provided hole in the wall or in the roof and blocked therein with a drop of resin or quick setting mortar, and provided with internal cavities (3, 6) for housing a pin (4) provided with a curved end part (5) of anti-extraction stop, that may be fastened by means of hand screwing of a crown washer (10) close to the wall, so that is may also be quickly extracted at the end of its function.

Description: BAYONET GLUE DOWELL The present invention concerns a device that may be inserted in walls and roofs per supporting furniture, chandeliers and similar, resistant to pulling o u t , torsion and cutting stresses. At present, wall hooking devices are known called 'stops', based on the expansion of a body capable of being deformed, that determines friction with the walls of the housing hole following to the rotation of a screw structure. Moreover, said 'stops' show a toilsome screwing operation, and after a determined time period are inclined to get unthreaded, under the mechanical extraction stresses of the supported component, with an evident reduction or complete annulment of their functionality. It is the aim of the present invention to completely solve above mentioned inconveniences by means of a device according to the present invention provided with fastening means of immediate installation and sure functionality in time. The aim set forth is reached, according to the present invention, by means of a device consisting of a means with contiuous walls shaped in such a way as to be inserted in the provided hole in the wall or in the eroof and blocked therein with a drop of resin or quick setting mortar, and provided with internal cavities for housing a pin provided with a curved end part of anti-extraction stop, that may be fastened by means of hand screwing of a crown washer close to the wall, so that is may also be quickly extracted at the end of its function. The advantages deriving from the present invention are evident: beyond the functionality, practicalness a n d quick installation, at the end of the use, if said pin is to be eliminated, said means internal to the wall may be appropriately covered and hidden from the view with painting or decorating covering. The present invention will be described more in detail hereinbelow relating to the enclosed drawings, in which an embodiment is shown. Figure 1 shows an axonometric, trasparent view of a device that may be inserted into walls and roofs for supporting furniture, curtains, chandeliers and similar, mainly consisting of: a preferably straight parallelepiped element 1 with continuous, closed walls, except for the base projecting outside the wall, provided with an integral front end disc 2 for the resting and following fasteing with the bottom of the provided hole by means of resin or mortar or other, and also provided with an internal longitudinal cavity 3, shaped as an eyelet for allowing the insertion of a pin 4 with its end stop curving 5, and ending up in a second, closed cavity 6, dimensioned in such a way as to allow the partial rotation of said pin 4 and the following resting of said curving 5 against the stop portion 7 internal in said cavity 6; a pin 4 with an end curving 5, provided with a screw groove 8 and ending up with an eyelet 9 or hook or similar for the support; a crown washer 10 with the shape of a truncated cone 12 for the external protection of the threading 8, that will be hand screwn onto said threading 8 until it gets close to the wall, for fastening said pin 4 in its operating position, with the curving 5 against the stop portion 7; a possible nylon disc 1 1 or similar, that may be inserted between the wall and said washer 9 for preventing incidental stickings deriving f r o m leaakings of excess adhesive, due to its anti-sticking features. In possible variants, the present invention provides the presence, on the surface of said element ( 1 ), of striations and/or grooves, for increasing the friction of said element ( 1 ) in the provided hole and for further preventing an unthreading thereof. The functioning of the device according to the present invention may be described as follows: - a dimensioned hole is performed into the wall or into the roof by means of a drill or similar; - a drop of adhesive is placed on the bottom of the hole or the end disc 2 of said element 1 is coated with said adhesive; - element 1 is inserted into said hole until said disc 2 gets sticked; - the pin 4 is inserted into the longitudinal cavity 3 internal to said element 1 , exploiting the eyelet shape for making pass the end curving 5; - said pin 4 is rotated until said curving 5 corresponds to said internal stop 7; - the washer 1 0 is hand-squeezed until it gets close to the wall, with the possible interposition of a disc 1 1 ; thus the projection of an eyelet 9 is obtained, that may be possibly directed in the chosen direction.

Claims: CLAIMS A device that may be inserted into walls and roofs for supporting furniture, chandeliers and similar, resistant fo extraction, torsion and cutting stresses, characterized in: - a preferably straight parallelepiped element ( 1 ) with continuous, closed walls, except for the base projecting outside the wall, provided with an integral front end disc (2) for the resting and following fasteing with the bottom of the provided hole by means of resin or mortar or other, and also provided with an internal longitudinal cavity (3), shaped as an eyelet for allowing the insertion of a pin (4) with its end stop curving (5), and ending up in a second, closed cavity 6, dimensioned in such a way as to allow the partial rotation of said pin (4) and the following resting of said curving (5) against the stop portion (7) internal in said cavity (6); - a pin (4) with an end curving (5), provided with a screw groove (8) and ending up with an eyelet (9) or hook or similar for the support; - a crown washer ( 10) with the shape of a truncated cone (1 2) for the external protection of the threading (8), that will be hand screwn onto said threading (8) until it gets close to the wall, for fastening said pin (4) in its operating position, with the curving (5) against the stop portion (7). 2. A device according to claim 1 , characterized in a nylon disc (1 1 ) or similar, that may be inserted between the wall and said washer (9) for preventing incidental stickings deriving from leaakings of excess adhesive, due to its anti-sticking features. 3. A device according to claim 1 , characterized in striations and/or grooves on the surface of said element ( 1 ) for preventing the unthreading thereof.

Inventors: DAVELLI GIUSEPPE, DAVELLI, GIUSEPPE
Applicants: DAVELLI GIUSEPPE, DAVELLI, GIUSEPPE
Application year: 1997
Main classification: F16B13
IPC codes: F16B13