JPH0413100Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a fastener feeding device for feeding fasteners such as nails, pins, screws, etc. held by a connecting band into a driving path of a nail gun.

(Prior art and its problems) A large number of holding pieces are jutted out from the upper and lower edges of a long synthetic resin belt-like member, one pair at a time, in the same direction at right angles, and each pair of holding pieces holds a fastener in a separable manner. A fastener feeding device that sends a fastener to a driving path of a nailing machine has a feed claw on the back side of the strip member that can reciprocate in the fastener feeding direction. The connecting band is fed and moved by engaging with the engagement holes formed at a predetermined interval in the center of the back surface, and the feeding pawl is moved back while deforming the band member (at this time, the connecting band is reversed by the non-return pawl). directional movement is prevented) and is configured to engage the next engagement hole to prepare for the next feed movement.

However, since the connecting band is made of synthetic resin, it may be deformed from the beginning due to the application of some external force, or may remain deformed and not return to its original state during return movement. In such a case, a situation occurs in which the feed pawl cannot engage with the engagement hole, which may impede feeding and cause blank firing.

Such a state of poor engagement cannot be corrected no matter how many times the reciprocating motion of the feed pawl is repeated, so the feed state must be corrected manually, which is inconvenient to handle.

(Technical problem of the invention) The present invention solves the above-mentioned drawbacks, and in particular, can feed the fastener stably and reliably to the end of the connecting band, while still causing poor engagement between the feed pawl and the engagement hole of the connecting band. The technical objective is to provide a feeding device for assuna that will never cause problems.

(Means for Solving the Problems) In order to solve the above problems, the fastener feeding device of the nailing machine according to the present invention has a large number of holding pieces that are arranged in pairs at the top and bottom in the same direction from the top and bottom edges of a long synthetic resin. A fastener feeder is placed at the base end of the connecting band holding piece in the fastener feeding direction of the guide path that guides the connecting band, which extends at right angles and has fasteners separably held by each pair of holding pieces, to the driving path of the nailer. The member is reciprocated, and the fastener feeding member is engaged with a notch formed between adjacent holding pieces at the bent portions of both upper and lower edges of the band-like member during feeding the fastener. .

(Effects of the invention) As mentioned above, the fastener feeding device of the invention has the following advantages:
Since the fastener feeding member is configured to engage with the notch in the bent portion of the connecting band, the connecting band can be reliably fed in the fastener feeding direction when the fastener feeding member moves, and the fastener feeding member can be moved backward. Sometimes, even if the back surface of the band-shaped member is subjected to a pressing action, the holding piece acts in the same way as the rib, so it is difficult to deform. Therefore, the fastener can be fed reliably at all times without causing poor engagement between the feeding member and the connecting band.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

In the figure, reference numeral 1 indicates a cylindrical nose portion provided at the tip of the nailer main body 1a. This nose part 1
has a driving passage 2 and a guide passage 3 formed on the side of the driving passage 2, and when the driver member 4 provided facing the driving passage 2 slides when the nailing machine is driven. , a blow is applied to the fastener 5 guided and loaded into the driving path 2 from the guide path 3, and the fastener 5 is driven along the driving path 2 toward the workpiece.

The fastener 5 is connected to a connecting band 6. As shown in FIG. 3, the connecting band 6 includes a large number of holding pieces 6 from both upper and lower edges of a long synthetic resin band member 6a.
b, 6b are extended at right angles in the same direction, and a headed fastener 5 is attached to each pair of holding pieces 6b, 6b.
It is formed by forming a holding hole 7 for holding the
Notches 9 are formed between adjacent holding pieces 6b, 6b at the bent portions 8, 8 on both upper and lower edges of the band-shaped member 6a. The fastener 5 is moved along a guide path 3 formed through the side of the driving path 2 by a fastener feeding device A as shown in FIGS. 1 and 2.
It is sent from right to left in the figure. and,
Due to the driving operation of the driver member 4, the fastener 5 in the driving path 2 is detached from the holding hole 7 and driven into the workpiece, and the remaining connecting band 6 is separated by one fastener 5 by the fastener feeding device A. 2 to the left, and a new fastener is placed in the driving path 2.

The fastener feeding device A reciprocates a fastener feeding member 10 in the fastener feeding direction by a cylinder device 11 at the base end of the holding piece 6b of the connecting band in the guide path 3 that guides the driving path 2 of the nailer main body 1a. At the same time, the fastener feeding member 10 operated by the cylinder device 11 is engaged with the connecting band 6 and fed.

As shown in FIG. 2, the fastener feed member 10 is rotatably pivoted to the tip of a piston rod 13 that is integrally formed with a piston 12 of a cylinder device 11 provided along the side of the guide passage 3. It is urged toward the guide passage 3 by a spring member 14, and two upper and lower feed claws 15, 15 are formed protruding from the tip toward the guide passage 3. Feed claw 1
5 and 15 are engaged with the upper and lower notches 9 and 9 formed between the respective holding pieces 6b and 6b that are adjacent to each other at the bent portions 8 and 8 of the upper and lower edges of the band-like member 6a in the connecting band 6. Further, the feed claws 15, 15 are configured to move forward and backward by one holding piece 6b (by one fastener 5) by driving the cylinder device 11.

Note that 16 is a lid that opens and closes the guide passage 3.

In the fastener feeding device A having the above configuration, when the cylinder device 11 is driven when feeding the fastener,
The piston rod 13 moves forward in the fastener feeding direction, and the fastener feeding member 10 advances the connecting band 6 along the guide path 3 by one holding piece 6b.
For this purpose, a new fastener 5 is guided into the driving path 2. Thereafter, when the nail gun is driven, the driver member 4 performs a driving operation and the fastener 5 in the driving passage 2 is driven into the workpiece. Further, when the piston rod 13 moves backward after driving, the fastener feeding member 10 rotates against the spring member 14 to release the engagement with the notch 9.
While retreating from the guide passage 3 and sliding on the back surface of the strip member 6a, it retreats by one holding piece 6b and engages with the next notch 9, thereby preparing for the next stage of fastener feeding. Incidentally, when the fastener feeding member 10 retreats, a non-return claw (not shown) engages with the connecting band 6.

As mentioned above, the feed pawls 15, 15 of the fastener feed member 10 are engaged with the notches 9, 9 of the connecting band 6. Therefore, when the fastener feeding member 10 moves, the connecting band 6 is reliably fed by one fastener 5. Moreover, when the fastener feeding member 10 retreats, it retreats from the guide passage 3 and slides on the back surface of the strip member 6a, so at this time, the connecting strip 6a
The back surface of the strip member 6a is subjected to a pressing action. However, since the holding pieces 6b act in the same way as the ribs, the band member 6a becomes difficult to deform, and as a result, poor engagement between the feed claws 15, 15 and the notches 9, 9 of the connecting band 6 may occur. Without fail, always make sure to use Fuasuna 5.
can be sent.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional view of the fastener feeding device of a nailer according to the present invention, Fig. 2 is a cross-sectional view taken along the line FIG. Code, A... Fastener feeding member, 1... Nose part, 3... Guide path, 5... Fastener, 6... Connecting band, 6a... Band-shaped member, 6b... Holding piece, 8...
...Bending portion, 9... Notch, 10... Fastener feeding member.

Claims (1)

[Scope of utility model registration request] A large number of holding pieces are extended from the upper and lower edges of a long synthetic resin band-like member in pairs, upper and lower, in the same direction at right angles, and each pair of holding pieces holds a fastener in a separable manner. A fastener feeding member is reciprocated in the fastener feeding direction on the proximal end side of the connecting band holding piece of the guide path that guides the guide path to the driving path, and the fastener feeding member is used to fold the upper and lower edges of the band member when feeding the fastener. A fastener feeding device for a nailer, characterized in that the fastener feeding device of a nailer is engaged with a notch formed between adjacent holding pieces at a bent portion.