摘要:
The invention relates to a dowel which has on the shaft (10) thereof at least one portion with a cross-section which increases towards the shaft end/ bore hole end, and on which shaft at least one support member (12, 14, 16) is supported so as to be deformable and axially displaceable between two end positions defined by stop members (13, 15, 17). The cross-section of said shaft portion, the inner cross-section of the annular support member and the outline of the support member are co-ordinated with each other in such a manner that during insertion of the dowel only a low level of frictional resistance is produced, but when a tensile stress is exterted on the dowel a fitting and deformation effect occurs which is essentially caused by bracing and/ or clamping of the support member between the stop member and the bore hole wall. Said effect increases the holding force produced by the dowel.
摘要:
The proposal is for an expanding plug (1) with an internal bore (2) passing completely through the plug body for the insertion of a nail or screw-like expanding pin (4, 14), in which the internal bore (2) has a helical form around the central axis and has a diameter over at least part of its length which is the same as or slightly smaller than the outside diameter of the expanding pin (4, 14).
摘要:
Cette invention propose un boulon d'ancrage pour l'ancrage au moyen d'une matière composite dans un trou (14) percé dans un élément en béton ou similaire. Ce boulon d'ancrage comporte une partie filetée (1) avec une section réduite (2) et un cône d'expansion (4) suivi d'une tête (6) avec épaulement de butée (5). La section réduite (2) et le cône d'expansion (4) sont recouverts d'une douille d'ancrage (3) dont l'enveloppe comporte plusieurs rainures longitudinales (10). Ces rainures longitudinales (10) et l'élasticité de la douille d'ancrage en matière plastique (3) permettent de compenser l'agrandissement du trou en cas de fissuration et d'utiliser le boulon d'ancrage dans la zone de tension.
摘要:
The proposal is for an anchor for anchoring by means of a compound in a drilling (14) in a concrete component or the like, said anchor having a threaded bolt (1) with a waisted section (2) and a spreading cone (4) merging into a head section (6) and forming an engagement shoulder (5). Over the waisted section (2) and the spreading cone (4) is drawn an anchor sleeve (3) having several longitudinal grooves (10) in its outer surface. The longitudinal grooves (10) and the elasticity of the plastic anchor sleeve (3) provide facilities for compensating for the enlargement of the drilling on crack formation which facilitates the use of the anchor in the tension region.
摘要:
The proposal is for an expanding plug (1) with an internal bore (2) passing completely through the plug body for the insertion of a nail or screw-like expanding pin (4, 14), in which the internal bore (2) has a helical form around the central axis and has a diameter over at least part of its length which is the same as or slightly smaller than the outside diameter of the expanding pin (4, 14).