JP2000334673A5 - - Google Patents

Description

[0010]
Further, an upper movable nonreturn member 16 and a lower movable nonreturn member 17 which are rotatably attached to the door member 13 and biased by a spring 20 so as to always protrude into the nail guide passage 14 are provided, engages the nail shaft portion 5 a of the wire-connected nails 3 in the feeding portion 9 as shown in FIG above the movable check member 16, the wire-connected nails 3 is retracted when the feed member 15 is retracted wire-connected nails in suppressing the reverse pawl 19, the wire-connected nails 3 and the nail shaft portion 5 a engages feed member 15 of the seat connected nails 4 below the movable check member 17 has been retracted 3 and sheet A lower non-returning claw 18 is provided to prevent the connection nail 4 from retreating.

[0015]
As a method of suppressing the inclination (blanking) of the seat connection nail 4, even if the seat 4a is deformed by the upper movable check member 16 by increasing the amount of protrusion of the fixed non-return claw 21, the non-return hole 4c. And the fixed non-return pawl 21 is sufficiently engaged, and the spring constant of the spring 20 for urging the upper movable non-return member 16 to the nail guide passage 14 side is reduced to suppress the deformation of the seat 4a. Although the feed member 15 is advanced and the tip nail of the sheet connection nail 4 is fed into the ejection part 7, the sheet 4 a is advanced over the fixed non-returning claw 21. In the case of the former configuration, the resistance at the time of forward movement of the seat joint nail 4 is increased, and the feeding of the seat joint nail 4 is not smoothly performed, and the nail 5 is supplied into the ejection unit 7 before the start of the driving operation. May not be able to Force to protrude the upper movable check member 16 into the nail guide passage 14 is weakened in the case of the formation, the return-preventing claw 19 and Kugijiku 5 a top of the case on the movable check member 16 of the wire-connected nails 3 As a result, the wire connection nail 3 may be inclined as in the case of the seat connection nail 4. Further, the fixed non-returning claw 21 is provided at a position separated from the ejection portion 7 from the upper non-returning claw 19 of the upper movable non-return member 16, and the fixed non-returned claw 21 In this case, since the fixed non-return claw 21 is located at a position away from the injection part 7, the influence of the dimensional accuracy of the seat connection nail 4 becomes large, and the non-return hole 4c is considered. And the fixed non-return claw 21 may not be engaged with each other, and the nail feeding accuracy may be lowered.

Claims (1)

A drive bit held vertically movably in the main body, an ejection part provided at the lower part of the main body for guiding the vertical movement of the drive bit, and a wire connection provided at the lower part of the main body and connecting a plurality of fasteners by a wire member It has a magazine for loading one of the fasteners and sheet connecting stop which is connected by a sheet member, and a feed unit for supplying the injection portion of the guide sequentially distal stop the connecting fastener in the magazine, the paper A feed guide member provided at a lower portion of the main body, a door member rotatably attached to the feed guide member and capable of opening and closing a fastener guide passage formed by the feed guide member; inside the fastener guide passage The feed stop for advancing the connection stop to the ejection portion side and the door member are rotatably provided so as to be urged into the stop guide passage by the biasing member to suppress the retraction of the wire connection stop Movable non-stop claw Provided member a driving machine constructed in accordance with the suppressing fixed nonreturn pawl retraction of the seat connecting fastener,
A plurality of the fixed non-return pawls are provided along the feed direction of the connection stop.