Screwdriver with replaceable nose for collated screws

Details Screwdriver with replaceable nose for collated screws Screwdriver with replaceable nose for collated screws

B - Operations, Transporting

25

B

B25B 23/08 (2006.01) B25B 23/04 (2006.01)

Patent

CA 2623342

This invention provides a driver attachment for a collated screwstrip in which a slide body is slidable in a housing parallel a longitudinal axis about which drive shaft is rotatable. The slide body has a rear portion and a removable nose portion. The housing and rear portion of the slide body form an integral part effectively permanently assembled and including a screw feed activation mechanism coupled between the housing and rear portion and which translates relative sliding movement and positioning of the rear portion of the slide body relative the housing. The nose portion is removable from the rear portion for ease of replacement with other nose portions adapted for use with the same or different sized screwstrips and/or screws. The nose portion includes a channel to guide a collated screwstrip generally transversely to the longitudinal axis of the drive shaft. The nose portion includes a guide mechanism to locate each successive screw advanced through the channel into axial alignment with the drive shaft for engagement therewith. The nose portion also includes a screw feed advance mechanism to advance the screwstrip through the channel when activated by the screw feed activation mechanism. The screw feed advance mechanism readily uncouples from and couples with the screw feed activation mechanism on uncoupling and coupling of the nose portion with the rear portion.

Mécanisme de fixation d'une bande de vis dans lequel un corps peut coulisser dans un logement parallèle à un axe longitudinal dans lequel tourne la tige de visseuse. Le corps coulissant comporte une partie arrière et un embout amovible. Le logement et la partie arrière du corps coulissant forment un seul corps permanent comprenant un mécanisme d'activation de l'alimentation en vis, installé entre le logement et la partie arrière, qui assure un mouvement coulissant relatif et permettant de placer la partie arrière du corps coulissant par rapport au logement. L'embout peut être retiré de la partie arrière et remplacé facilement par d'autres embouts conçus pour des bandes de vis et/ou des vis de taille identique ou différente. L'embout comporte une glissière pour guider la bande de vis perpendiculairement à l'axe longitudinal de la tige de visseuse. L'embout comporte aussi un mécanisme de guidage qui place les vis vers l'avant dans la glissière, selon un alignement axial par rapport à la tige de visseuse, de façon à les mettre en prise. L'embout comprend également un mécanisme d'alimentation en vis qui fait avancer la bande de vis dans la glissière lorsqu'activé par le mécanisme d'alimentation en vis. Le mécanisme d'alimentation en vis peut être fixé rapidement au mécanisme d'activation de l'alimentation, ou décroché, lorsque l'embout est fixé à la partie arrière ou en est décroché.

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