B - Operations – Transporting – 25 – B
Patent
B - Operations, Transporting
25
B
81/29
B25B 13/48 (2006.01) B25B 21/00 (2006.01) B25B 23/00 (2006.01) B25G 1/02 (2006.01)
Patent
CA 1306627
PORTABLE SCREW DRIVER HAVING FLEXIBLE EXTENSION SHAFT ABSTRACT A cordless portable electric screwdriver having a chuck for normally holding a tool for rotary driven motion at one end thereof. The screwdriver includes a flexible extension shaft having a first end adapted to cooperate with the chuck and a second end adapted to hold the tool for rotary driven motion. The first end of the flexible exten- sion shaft and the chuck have complementarily shaped non- circular cross-sections. The chuck has an axis and is adapted to receive the first end of the flexible shaft by means of axial insertion of the shaft into the chuck with the non-circular cross-sections in rotationally aligned relationship and the chuck is also adapted to hold the first end of the flexible extension shaft for rotary driven motion of the shaft. The second end of the flexible extension shaft and the tool have complementarily shaped non-circular cross-sections. The screwdriver is operable to drive the tool by reason of the second and of the flexible shaft hold- ing the tool for rotary driven motion thereof. With this arrangement, the flexible extension shaft normally is dis- posed so as to be substantially entirely coaxial with the chuck but is universally deflectable relative to the axis of the chuck so as to position the second end of the shaft and the tool at an acute angle relative thereto.
600571
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Kozak Burton
LandOfFree
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