Driving tool

B - Operations – Transporting – 25 – C

Patent

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Details

B25C 7/00 (2006.01) B25C 1/04 (2006.01)

Patent

CA 2610865

A contact mechanism where operation of a trigger is effected when the mechanism is moved upward relative to a nose section (4), in which there is provided a switchover device (28). The switchover device (28) holds a lower contact member (11) between two springs (23, 24) arranged in a vertical relationship near the nose (4), the lower end of the lower contact member (11) being urged by the upper spring (23) to project downward from the lower end of the nose section. Further, the switchover device (28) can be switched to the following three positions: a first position at which the contact member (11) is held at an upper position against the upper spring (23), a second position at which the contact member (11) is held at a lower position against the lower spring (24), and a third position at which the movement of the contact member is not restrained.

La présente invention concerne un mécanisme de contact, qui permet de faire fonctionner un organe de déclenchement lorsque ledit mécanisme est déplacé vers le haut par rapport à une section avant (4) et qui comprend un dispositif de commutation (28). Le dispositif de commutation (28) comprend un élément de contact inférieur (11) entre deux ressorts (23, 24) disposés verticalement près de la section avant (4). L'extrémité inférieure de l'élément de contact inférieur (11), poussée par le ressort supérieur (23), glisse vers le bas à partir de l'extrémité inférieure de la section avant. En outre, le dispositif de commutation (28) peut être réglé dans l'une des trois positions suivantes : une première position dans laquelle l'élément de contact (11) est maintenu dans une position supérieure contre le ressort supérieur (23), une deuxième position dans laquelle l'élément de contact (11) est maintenu dans une position inférieure contre le ressort inférieur (24) et une troisième position dans laquelle le mouvement de l'élément de contact est libre.

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