Plug for fastening to hollow building materials and to solid...

F - Mech Eng,Light,Heat,Weapons – 16 – B

Patent

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Details

F16B 13/06 (2006.01) F16B 13/12 (2006.01)

Patent

CA 2373476

The invention relates to a plug (10) for fastening to hollow or panel-type building materials and to solid building materials. The invention proposes providing the plug (10) with expansion limbs (18) that extend longitudinally and that are connected to one another by thin skins (22) having a corrugation in the peripheral direction. That has the advantage of good screw guidance and a torsionally rigid construction of the plug (10); especially when fastening to hollow and panel-type building materials, undesirable backwards rotation of the plug tip (16) is avoided when screwing in an expansion screw by hand. Angled slits (32) in the plug tip (16) bring about good adaptation to screws having different diameters and different pitches of thread.

La présente invention concerne une cheville (10) destinée à être fixée à des matériaux de construction creux ou plats et à des matériaux de construction solides. L'invention a pour objet de former la cheville (10) avec des branches d'expansion (18) s'étendant en direction longitudinale, qui sont reliées par l'intermédiaire de fines membranes (22) présentant une ondulation en direction circonférentielle. Ceci présente l'avantage de donner à la cheville (10) un bon guidage de vis et une constitution lui permettant de résister à la torsion, et permet d'éviter, en particulier lors de la fixation à des matériaux de construction creux et plats, la difficile rotation inverse d'une pointe de cheville (16) lors du vissage manuel d'une vis d'expansion. Des encoches inclinées (32) pratiquées dans la pointe de cheville (16) permettent d'obtenir une bonne adaptation à des vis de diamètres différentes et de pas de vis différents.

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