Hex keys and other tools with non-slip feature

Details Hex keys and other tools with non-slip feature Hex keys and other tools with non-slip feature

B - Operations, Transporting

25

B

B25B 23/10 (2006.01) B25B 15/00 (2006.01)

Patent

CA 2219535

The fastener-driving tool has an locking insert which expands or displaces to more securely lock the tool in the fastener. The tool has a distal end configured to engage a driving recess in a fastener, and has an annular recess adjacent the distal end, with a reduced cross-section at the annular recess, other than an axial circular cross-section, A locking insert having a generally similar cross-section to that of the distal end is positioned in the annular recess closely around the reduced cross-section. The locking insert may have a split portion which permits expansion of the locking insert when acted upon by the reduced cross-section as a result of rotation of the distal end relative to the locking insert, or may provide locking simply by displacement resulting from being acted upon by the reduced cross-section.

Outil pour la mise en place d'éléments de fixation comportant une rondelle élastique assurant une meilleure prise de l'outil sur l'élément de fixation. L'extrémité distale de l'outil présente une configuration épousant la forme de la partie creuse servant à entraîner un élément de fixation et comporte une rainure annulaire. Une rondelle élastique de diamètre extérieur semblable à celui de l'extrémité distale de l'outil est logée dans la rainure annulaire en contact étroit avec la portion de diamètre réduit au fond de la rainure. La rondelle élastique peut comporter une fente d'expansion à action de verrouillage au contact de la portion de l'outil de diamètre réduit au fond de la rainure.

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