초록 ▼

A driving device for securing fasteners (7) such as nails, staples, etc., which are stored in a magazine (6) to be supplied to an ejection channel (5) provided with an opening (8) closed by a spring biased nose plate (9) elastically held by a spring (14) against the opening (8) of the ejection chann

A driving device for securing fasteners (7) such as nails, staples, etc., which are stored in a magazine (6) to be supplied to an ejection channel (5) provided with an opening (8) closed by a spring biased nose plate (9) elastically held by a spring (14) against the opening (8) of the ejection channel (5) in the nose portion (4) on the side opposite the magazine (6). When jamming occurs between a driving plunger (2) and fastener (7), the nose plate (9) lifts itself against the bias of the spring, whereby jamming is frequently avoided automatically. If jamming occurs nevertheless, the nose plate (9) may be completely removed from the opening (8) of the ejection channel (5) so that the jamming may easily be cleared. Potential jamming situations are often avoided since the nose plate (9) may deflect to partially open the ejection channel (5).

대표청구항 ▼

An apparatus for driving fasteners, comprising housing means, a nose portion (4) with an ejection channel (5) for said fasteners attached to said housing means, a driving means slidably supported in said ejection channel, a magazine attached to said nose portion (4) for storing and supplying said fa

An apparatus for driving fasteners, comprising housing means, a nose portion (4) with an ejection channel (5) for said fasteners attached to said housing means, a driving means slidably supported in said ejection channel, a magazine attached to said nose portion (4) for storing and supplying said fasteners into said ejection channel, a lateral access opening in said nose portion (4) for providing access substantially to the entire lower end of said ejection channel, a movable nose plate (9) for covering said lateral access opening of said ejection channel, spring means secured to said apparatus for biasing said nose plate into a window closing position, whereby said nose plate is pressed against said opening of said nose portion in an elastically yielding manner, said nose portion comprising stop shoulder means, said nose plate comprising a stop surface engaging said stop shoulder means in the window closing position of said nose plate, whereby a lengthwise sliding displacement of said nose plate is prevented, and wherein said nose plate comprises a spring tensioning wedge surface angled toward said ejection channel and a spring cocking wedge surface angled away from said ejection channel, said wedge surfaces forming a ridge which provides a first spring stop (22), and a second spring stop (21) on said nose portion, said spring means being mounted in such a position on said apparatus that said spring means is received between said spring stops (21, 22) in a biased position, whereby said spring means simultaneously holds and biases said nose plate.