JPH0544064Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a fastener feeding device for a driving machine that drives connecting fasteners connected by a connecting member.

[Conventional technology]

Generally, a nailer is known as a tool that can automatically drive fasteners such as nails. FIG. 7 is a front view of this nailing machine. Reference numeral 1 in the figure indicates a main body casing, and this main body casing 1 includes a gripping portion 1a and a striking cylinder portion 1b.
A striking driver 2 for ejecting a stopper is provided inside the striking cylinder portion 1b so as to be reciprocally movable. Further, a magazine 3 is held obliquely in the main body casing 1, and the left end of the magazine 3 in the figure is an ejection opening 4 through which the above-mentioned impact driver 2 can enter and exit.
is formed. Connecting band 5 is attached to the magazine 3 above.
A plurality of nails 6, which are fasteners fixed with adhesive, are housed. In addition, the reference numeral 7 in the figure is a trigger, and by pulling this trigger, the percussion driver 2 moves toward the ejection port 4 side.

When using a nailing machine configured in this way, first, apply the nailing opening 4 to the material to be driven, and then press the trigger 7.
pull. Then, the impact driver 2 moves to the injection port 4 side, and the nail 6 is ejected from the injection port 4 by the impact driver 2 and driven into the material to be driven. Thereafter, the impact driver 2 is retreated into the impact cylinder portion 1b and stored in a predetermined position. At the same time, the connecting band 5 to which the nail 6 is fixed is moved, and the next nail 6 is positioned at a proper position near the hammer opening 4.

FIG. 8 is a partial sectional view taken in the direction of the arrow in FIG. 7, showing the drive mechanism of the connecting band 5 to which the nail 6 is adhesively fixed, and FIG. 9 is a partial cross-sectional view taken in the direction of the arrow in FIG. FIG. The connection band 5 here is a wire rod 8. On one side of the fastener conveying path 9 through which the nails 6 and wire rods 8 are conveyed, a nail feeding member 10 is provided so as to be capable of reciprocating in the conveying direction for sequentially hooking and moving the nails 6. A plurality of claws 10a are formed at the tip of the claw feeding member 10, and these claws 10a protrude into the stop conveying path 9. Further, on the other side of the fastener conveyance path 9, a pressing member 11 for pressing the nail 6 toward the nail feeding member 10 is swingably provided on the support member 12. A spring 13 is interposed between the pressing member 11 and the support member 12, and the spring 13 causes the pressing member 11 to always press the nail 6 toward the nail feeding member 10.
By pressing the nail 6 and the wire rod 8 with the pressing member 11 in this way, the nail 6
The structure is such that the position can be kept constant and stable injection can be performed.

Further, FIG. 10 is a diagram in which the connecting band 5 for fixing the plurality of nails 6 is a plastic connecting band 14, and FIG. 11 is a sectional view of the main part taken in the direction of the arrow in FIG. This plastic tie strip 14 is more flexible than the wire 8 shown in FIG.
As the width becomes wider, the pressing member 11 resists the spring 13 and swings clockwise in the figure (in the direction of arrow A) about the fulcrum 15. Therefore, the position where the plastic connector 14 is pressed is the fulcrum 1.
5, it is pressed at a position away from the ejection port 4.

[The problem that the idea attempts to solve]

However, in the above-mentioned stop feeding device, when a different type of connecting member is used during conveyance of the connecting member, the width of the conveying path changes and the pressing position of the connecting member moves, making it difficult to maintain a stable stop. There is a problem in that it is not possible to feed the material.

The present invention was developed in view of the above-mentioned problems, and is a driving machine that can stably drive nails by setting the pressing position at a fixed position close to the nail drive opening. An object of the present invention is to provide a fastener feeding device.

[Means to solve the problem]

The present invention includes a connecting member equipped with a plurality of fasteners,
a connecting member conveying path for conveying the connecting member; a conveying device provided on the side of the connecting member conveying path for intermittently conveying the connecting member; and a conveying device provided on the side of the connecting member conveying path for conveying the connecting member; In the fastener feeding device for a driving machine, the pressing member includes a first pressing member that presses the connecting member to the side of the connecting member conveyance path; a second presser member that movably supports the first presser member and is movable in a direction perpendicular to the connecting member conveyance path; a first biasing member that biases the first presser member in the pressing direction; a support frame that movably supports the second presser member in a direction perpendicular to the connecting member conveyance path at a plurality of spaced apart points; and this support frame. and a second urging member provided between the second pressing member and the second pressing member and urging the second pressing member in the pressing direction.

[Effect]

A connecting member provided with a plurality of stops is intermittently conveyed through a connecting member conveying path by a conveying device. The connecting member can be pressed and stably held at a position close to the nail driving opening by the first holding member. If the width of the connecting member conveyance path changes depending on the type of connecting member that holds the stopper, the first pressing member is swingably supported by adjusting the position of the second pressing member. Since the position of the support point can be adjusted, the state in which the connecting member is held by the first holding member can be maintained constant. Note that by integrally molding the check claw on the first holding member or the second holding member, it is possible to prevent the connecting member from moving backwards.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings.

Fig. 1 shows a sectional view of the fastener feeding device of the driving machine according to the present invention, and Fig. 2 shows the − in Fig. 1.
It shows a cross-sectional view of the main part as seen from the arrow. The plastic connecting band 21 supporting the head of the nail 22 has support flanges 21a, 21b spaced apart above and below. This plastic connecting band 21 is connected to the conveying path 2.
Drive within 3. On one side of this conveyance path 23, a nail feeding section 24 for conveying the nails 22 is provided so as to be able to reciprocate in the conveyance direction. This nail feeding section 24
has claw portions 24a, 24a for hooking the nail 22.
is formed. The lower part of the nail feeding section 24 is swingably connected to one end of the actuating rod 25 via a shaft 100, and the nail feeding section 24 is biased clockwise in the figure by a coil spring 37. ing. The other end of the actuating rod 25 is enlarged;
This enlarged portion 25a is housed in a stopper guide member 26, and a spring 27 is interposed between this enlarged portion 25a and the stopper guide member 26, so that the actuating rod 25 is moved toward the left in the figure. is energized by

On the other hand, on the other side of the conveyance path 23, the nail 2
A pressing member 28 is disposed at a side position of the head of No. 2. Reference numeral 29 in the figure is a support frame, and a nail press plate holding member 30 (second press member) movable in a direction perpendicular to the conveyance direction is engaged with and provided on this support frame 29. Two guide shafts 30 of presser plate holding member 30
a and 30b are slidably engaged with the support frame 29. In this way, by slidingly supporting the nail press plate holding member 30 on the support frame 29 at a plurality of points, the nail press plate holding member 30 can be moved in a direction perpendicular to the conveyance path 23 without being tilted. This nail presser plate holding member 30
A nail holding plate 32 (first holding member) is supported at the lower end of the guide shaft 30a so as to be swingable about a support shaft 31. In addition, the guide shaft 30
This nail press plate holding member 30 is placed around a.
A spring 33 is fitted onto the outside to press the transport path 23 side. In addition, the nail presser plate holding member 3
The inner end of the guide shaft 30a and the nail holding plate 32
This nail holding plate 32 is connected to the conveying path 2 between
A spring 34 is interposed to press the third side. Further, the nail presser plate 32 is provided with a stopper part 32a at the left end in the figure, and this stopper part 32a engages with the end of the nail presser plate holding member 30 and moves the nail presser plate 32 to the conveyance path 23 side. The extrusion position is regulated.

Further, the nail holding plate 32 has a check claw 32b protruding into the conveyance path 23 for preventing the plastic connecting band 21 from moving backwards, and this check pawl 32b engages in the feeding opening 21c of the plastic connecting band 21. are doing. A locking knob 35 is fitted onto the protruding end of the guide shaft 30a from the support frame 29,
This locking knob 35 is attached to the nail holding plate holding member 3.
By engaging with the locking pin 36 provided at 0, the position of the nail presser plate holding member 30 can be fixed.

Further, as shown in FIG. 2, a pressing part 38 is provided on the side of the tip of the nail 22, and a nail holding member 39 in this pressing part 38 presses the tip of the nail 22 by a spring 40. It is pressed against the nail feeding section 24 side. This can prevent the nail 22 from becoming slanted.

The operation of the fastener feeding device of the driving machine configured as described above will be explained below.

First, the conveying path 2 is set to the width of the plastic connecting band 21.
3, the locking pin 36 is engaged with a desired thickness portion of the locking knob 35, thereby positioning the nail holding plate 32. At this time, the nail press plate 32 has the nail press plate holding member 30 attached to the two guide shafts 30.
Since it is guided with respect to the support frame 29 by means of a and 30b, it can move in parallel and press the entire surface of the nail holding plate 32 against the plastic connecting body 21. Note that since the nail holding plate 32 swings about the support shaft 31, the spring 3
4, the nail presser plate 32 presses the connecting band 21 at a position close to the punching opening 42, and a reliable pressing effect can be obtained. Then, in this state, the plastic connecting band 21 provided with the nails 22 is conveyed into the conveying path 23 by pulling a trigger (not shown). This conveyance is carried out by the nail feeding section 24.
made by. i.e. trigger (not shown)
1, the actuating rod 25 moves against the spring 27 in the direction of arrow C in FIG. At this time, the plastic connecting band 21 does not move because it is engaged with the check claw 32b of the nail holding plate 32. Further, the nail 22a is connected to the nail feeding section 2.
4, the nail feeding portion 24 moves counterclockwise (direction D) in the figure against the coil spring 37 to release the engaged state of the nail 22a. can do. Then, when the trigger (not shown) is pulled back, the nail feeding portion 24 engages with the next nail 22b, and the actuating rod 25 moves in the direction of arrow E in the figure. Along with this, the nail feeding section 24 also moves in the E direction while engaging the nail 22b. In this way, the plastic tie strip 21 with a plurality of nails 22 can be moved one after the other intermittently. Then, the nail 22 is driven out when it is located between the oblique openings 42 formed by the nose portions 41.

FIG. 3 is a diagram showing a conveyance state when the connecting member including a plurality of nails 22 is a wire rod 43;
FIG. 4 is a sectional view of a main part taken along the - arrow in FIG. 3. That is, at this time, the width of the conveying path 23 becomes narrower than in the case of the plastic connecting band 21 described above. Therefore, it is necessary to adjust the width of the conveyance path 23. That is, the locking portion 35a of the locking knob 35, which is engaged with the locking pin 36, is brought into engagement at an appropriate position. At this time, since the nail presser plate holding member 30 moves, the support shaft 31 also moves, and the nails 22, 22, . can.

5 and 6 are cross-sectional views of another embodiment of the fastener feeding device of the present invention. Note that the same members as those in the first embodiment described above are given the same reference numerals, and detailed explanations will be omitted. This embodiment is different from the above-mentioned first embodiment in that the non-return claw 32b in the above-mentioned first embodiment is
(FIG. 1) was formed on the nail holding plate 132, whereas in this embodiment, a nail holding plate holding member 130 is provided with a plastic connecting band 21 or a connecting member such as a wire 43 to prevent the connecting member from moving backward. A check claw 130a is formed therein.
That is, the support frame 129 of the pressing member 128
A nail press plate holding member 130 is held within the nail press plate holding member 130 via a spring 134, and a nail press plate 132 is supported within this nail press plate holding member 130 via a spring 134. The right end portion in the figure is swingably supported by a shaft 150. The right end portion of the nail press plate holding member 130 in the figure is supported by a support shaft 151.
1 is urged toward the conveyance path 23 side by a spring 152, and the conveyance path 2 is attached to the outer end of this support shaft 151.
3 width adjustment mechanisms 153 are provided. With this structure, the nail holding plate 132 holds the nail 2 in parallel.
2, 22, 22, . . . can be pressed.

[Effect of idea]

The present invention is configured as described above, and the second presser member, which is swingably connected to the first presser member that presses the connecting member, is movable in a direction perpendicular to the conveying direction of the connecting member. The holding state by the first holding member can be stabilized, and the connecting member can be reliably pressed especially at a position close to the nail driving opening, and the fastener can be driven in a stable state when driving. Can be done. Further, by forming the check claw, it is possible to prevent the connecting member from moving backwards.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of the fastener feeding device of the driving machine according to the present invention, Fig. 2 is a sectional view of the main part taken in the direction of the arrow in Fig. 1, and Fig. 3 is a sectional view of the fastener feeding device of the driving machine according to the present invention. FIG. 4 is a cross-sectional view of the main part taken in the direction of the arrow in FIG. 3; FIG. Fig. 6 is a sectional view of a fastener feeding device of a nail driving machine according to the second embodiment of the present invention, Fig. 7 is a front view schematically showing a commonly used nailing machine, and Fig. 8 is a conventional nail feeding device. FIG. 9 is a cross-sectional view of the main part of the fastener feeding device, FIG. 9 is a cross-sectional view of the main part taken in the direction of the arrow in FIG. 8, FIG. FIG. 10 is a cross-sectional view of the main part in the direction of the arrow in FIG. 21...Plastic connecting band (connecting member), 2
2... Nail (fastener), 23... Conveyance path (connecting member conveyance path), 24... Nail feeding section (conveyance device), 28...
Pressing member, 29... Support frame, 30... Nail holding plate holding member (second holding member), 130a
...Return claw, 32...Nail holding plate (first holding member), 32b...Return claw, 33...Spring (second urging member), 34... Spring (first urging member). 130... Nail press plate holding member (second press member), 132... Nail press plate (first press member).

Claims (1)

[Claims for Utility Model Registration] 1. A connecting member provided with a plurality of fasteners, a connecting member conveying path for conveying the connecting member, and a connecting member provided on the side of the connecting member conveying path to intermittently transport the connecting member. In the fastener feeding device for a driving machine, the fastener feeding device includes a conveying device that conveys the connecting member, and a pressing member that is provided on a side of the connecting member conveying path and presses the connecting member to the other side, the pressing member comprising: a first presser member that presses the connecting member to the side of the connecting member conveyance path; and a second presser that movably supports the first presser member and is movable in a direction perpendicular to the connecting member conveyance path. a member, a first biasing member provided between the first presser member and the second presser member that urges the first presser member in the presser direction, and a plurality of spaced points orthogonal to the connecting member conveyance path. a support frame that movably supports the second presser member in the pressing direction; and a second biasing member that is provided between the support frame and the second presser member and biases the second presser member in the pressing direction. A fastener feeding device for a driving machine, comprising: 2. The stop for a driving machine according to claim 1, wherein the first holding member has a check claw formed on the side facing the connecting member conveyance path for preventing the connecting member from moving backward. Material feeding device. 3. The driving machine according to claim 1 or 2, wherein the second holding member is provided with a check claw that prevents the connecting member from moving backwards on a side facing the connecting member conveyance path. stop feed device.