Screwdriver with a screw holder

Details Screwdriver with a screw holder Screwdriver with a screw holder

B - Operations, Transporting

25

B

B25B 23/10 (2006.01)

Patent

CA 2460626

The invention relates to a screwdriver with a screw holder, comprising: A) a shaft (2) that can be connected to driving means (11) and having a longitudinal axis (3) and a front shaft segment (9), which can be inserted into an appropriate cavity for the screwdriver located on a screw head; B) a spring element (6) arranged in the front shaft part (9), which is elastically deformable crosswise in relation to the longitudinal axis (3), a fixed segment (12) that can be connected to the shaft (2) and at least one elastic segment (13), wherein C) the fixed segment (12) of the spring element (6)is fixed in a bore (7) which penetrates from the front face (18) of the shaft (2) into the front shaft segment (9) andE) the bore (7) has a bore axis (17) forming a 90~ > .alpha. > 0~ angle with the longitudinal axis (3), whereby the spring element can be deformed in a relatively considerable manner and strong retaining force is exerted upon the screw head.

L'invention concerne un tournevis doté d'un porte vis comprenant : A) une tige pouvant être raccordée à des moyens d'entraînement (11), dotée d'un axe longitudinal (3) et d'un segment de tige avant (9), ledit segment étant insérable dans une cavité, adaptée à un tournevis, ménagée sur une tête de vis, et B) un élément à ressort (6) disposé sur le segment de tige avant (9), ledit élément étant déformable de manière élastique et transversalement à l'axe longitudinal (3), comprenant un segment fixe (12) pouvant être raccordé à la tige, et au moins un segment élastique (13), C) le segment fixe (12) de l'élément à ressort (6) est maintenu dans un orifice (7), qui pénètre, à partir de la face (18) de la tige (2), dans le segment de tige avant (9) ; et E) l'orifice (7) présente un axe (17), qui forme avec l'axe longitudinal (3) un angle 90·>.alpha.> 0·, l'élément à ressort pouvant être ainsi déformé de manière relativement forte et une grande force de retenue étant exercée sur la tête de vis.

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