Flexible wrench extension

Details Flexible wrench extension Flexible wrench extension

B - Operations, Transporting

25

B

B25B 23/16 (2006.01) B25B 23/00 (2006.01)

Patent

CA 2201228

A flexible wrench extension includes a housing (20) having two barrels (21, 22) disposed in the end portions and two helical springs (23, 24) secured between the barrels (21, 22). One helical spring (24) includes a circular cross section having a helical gap (25) for engaging with the other helical spring (23) of rectangular cross section. A driver bit (31) and a coupler (32) are rotatably engaged in the barrels (21, 22) for engaging with fastening members. A flexible wire (30) is secured between the driver bit (31) and the coupler (32) for allowing the driver bit (31) and the coupler (32) to be rotated in concert with each other.

Rallonge souple de clé comportant un boîtier (20) muni de deux éléments cylindriques (21, 22) situés à chaque extrémité de la rallonge et deux ressorts hélicoïdaux (23, 24) fixés entre les deux éléments cylindriques (21, 22). Un ressort hélicoïdal (24) est de section transversale circulaire et présente un espace hélicoïdal (25) lui permettant de passer dans l'autre ressort hélicoïdal (23), ce dernier présentant une section transversale rectangulaire. Un élément d'entraînement (31) et un dispositif de raccordement (32) sont insérés par rotation dans les éléments cylindriques (21, 22) de manière à engager des dispositifs de fixation. Un fil de fer souple (30) est situé entre l'élément d'entraînement (31) et le dispositif de raccordement (32) pour permettre à l'élément d'entraînement (31) et au dispositif de raccordement (32) de tourner ensemble.

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