JPS6317658Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> The present invention is designed to move a connected fastener, which is made up of a large number of fasteners held in parallel at regular intervals by a connecting member, from the magazine section of a fastener driving machine to the fastener driving section. This invention relates to a feeding device for connecting fasteners, which feeds them one by one.

<Problems to be solved by the invention> As shown in FIG. 1, horizontal pieces 2 and 2 are connected from both upper and lower ends 1A and 1B of a vertical piece 1, respectively, as connecting members for holding a large number of fasteners in parallel at regular intervals. are provided protrudingly, and the shaft portion 4A of the fastener 4 is inserted and locked into the fastener locking holes 3, 3 provided in each of the horizontal pieces 2, 2, and one of the horizontal pieces 2, 2 is 2, the engaging piece 5 is connected vertically from the tip 2A of the engaging piece 5 with an engaging recess 6 formed therein.
The tip 6A side where the cut is formed is free, and therefore the entire engaging piece 5 is easily bent, resulting in poor feeding.

<Means for Solving the Problems> The present invention is intended to enable stable feeding of a connected fastener, which is made up of a large number of fasteners held in parallel at equal intervals by the above-mentioned connecting member. The feed piston that operates the feed pawl is integrated with this feed pawl, and is inserted inside the connecting member to support the engaging piece from the inside, so that the engaging piece is provided with an inward force. It is characterized by preventing the occurrence of deflection and realizing a stable state of engagement with the feed pawl.

<Example> Hereinafter, an example of the present invention will be described with reference to each of the figures from FIG. 2 onwards, and also with reference to the above-mentioned FIG. 1 as necessary.

First, FIGS. 2 and 3 are diagrams showing the main parts of the feeding device of the present invention. Reference numeral 10 designates a feed piston rod. A piston/cylinder mechanism is disposed at the base (not shown), and the rod is capable of reciprocating in the axial direction of the rod, that is, in the directions A and B in FIG.

Further, the rod 10 is capable of reciprocating along a fastener guide section 11 between the nose of the fastener driving machine and the magazine.

A guide piece 12 is provided at the tip 10A of the rod 10 to protrude in a right angle direction. The guide piece 12 has a vertical upright piece 14 bent at the tip 13A of the horizontal portion 13, and the base 13 is fixed to the rod tip 10A.

Further, a feed pawl 15 is pivotally supported on the rod tip 10A so as to be horizontally rotatable within a certain rotation range.

That is, in this example, the feed pawl 15 has a rod attachment portion 16 bent into a U-shape at its base, and an engaging pawl portion 17 that projects in the horizontal direction is provided at its tip. The upper and lower horizontal walls 16A, 16B of the mounting portion 16 are connected to the pivot shaft 18 of the rod tip 10A.
The shaft 18 is rotatably supported by the shaft 18.
The tip 19A of the spring 19 that is locked to the locking protrusion 1
6C and 16D, and is elastically biased around the pivot shaft 18 in the direction of arrow C in FIG.

At this time, the outer vertical wall 1 of the rod attachment part 16
6e is in engagement contact with the outer surface 10B of the rod tip 10A, and the C around the pivot shaft 18 of the feed pawl 15 is
Rotation in the direction is restricted. Therefore, the feed claw 15 resists the elastic force of the spring 19 and moves toward the pivot shaft 1.
8 can be moved only in the opposite direction of arrow C, that is, in the direction of arrow D, from the state shown in FIG.

During normal operation, the feed pawl 15 projects perpendicularly from the tip of the rod, overlapping the guide piece 13 as shown in FIGS. 2 and 4.

Further, the vertical upright piece 14 of the guide piece 12 and the engaging claw portion 17 of the feed claw 15 face into the fastener feed hole 11A of the fastener guide 11, and the vertical upright piece 14 of the guide piece 12 and the engaging claw portion 17 of the feed claw 15 face the fastener feed hole 11A of the fastener guide 11. The vertically rising piece 1 is inserted from the inside of the engaging piece 5 of the connecting member.
4 is positioned to back and support the engagement piece 5 from the inside, and at this time, the engagement claw portion 17 is positioned so as to be engaged with the engagement recess 6 from the outside of the engagement piece 5. .

Therefore, when attempting to move the fastener, the engaging claw portion 17 of the feed claw 15 is inserted into the engaging recess 6.
When the feed piston (not shown) is moved back from the state in which it is engaged, the piston rod 10 is moved in the direction of arrow A. At this time, the engaging claw portion 17 is engaged with the engaging recess 6 of the connecting member, so that the piston rod 10 is connected. The fastener can be sent by moving the material along with the above-mentioned reciprocation. At this time, since the engagement piece 5 is restricted from moving inward by the vertical upright piece 14 from the inside, the engagement claw portion 17 and the engagement recess 6
The engagement state of is stable.

In this way, when the feed piston moves to the forward movement end, the connecting material is fed and the fastener is moved by a predetermined amount.

Next, when the feed piston is moved back after the forward movement described above, the engagement claw portion 17 abuts against the portion 6B between the engagement recess 6 of the engagement piece 5, and the spring 19 as shown in FIG.
When the engaging claw portion 17 is rotated in the counter-arrow C direction against the elastic force of the spring 19 and the engaging claw portion 17 fits into the next engaging recess 6, the engaging claw portion 17 fits into this recess 6 and the spring 19 is rotated. Due to the resilient force, the engaging claw portion 17 is engaged in the engaging recess 6 in preparation for the next feeding as shown in FIG.

In addition, even during the above-mentioned return movement, that is, when the engagement claw portion 17 is refitted from one engagement recess 6 to the engagement recess 6 at the next engagement position, the engagement piece 5 always moves from the inside to the vertical upright piece. 14 is in a supported state, the engagement piece 5 does not bend inward, and the engagement claw portion 1
7 can be stably engaged with the engagement recess 6.

<Effects of the invention> As is clear from the description of the embodiments above, the present invention has an engagement recess (6) provided in the engagement piece 5 which is extremely flexible and easily displaced as shown in FIG. The engagement of the claw 16 with the engaging claw portion 17 is also controlled by the guide piece 12.
Since the vertical upright piece 14 always supports the engaging piece 5 from the inside and prevents the engaging piece 5 from deforming inward, a stable engaged state can be obtained and accurate fastener movement can be achieved. can.

[Brief explanation of drawings]

FIG. 1 is a cutaway perspective view showing a connecting member of a fastener to be moved by the device of the present invention. Figure 2 is a perspective view of the main parts of the present invention, Figure 3 is a front view, and Figure 4 is a front view.
The figure is a schematic plan view when the feed piston is moving forward (when the fastener is moving), and FIG. 5 is a schematic plan view when the feed piston is moving backward. 1... Vertical piece, 2... Horizontal piece, 5... Engagement piece,
6... Engagement recess, 10... Feed piston rod, 12... Guide piece, 14... Vertical standing piece,
15...Feeding claw, 17...Engaging claw portion.

Claims (1)

[Scope of utility model registration request] The shaft portion of the fastener is locked by the horizontal pieces protruding from both the upper and lower ends of the vertical piece, and an engaging recess is cut into the engaging piece that is vertically connected from the tip of one of the horizontal pieces. A device for feeding connected fasteners in which a large number of fasteners are held in parallel at equal intervals by a formed connecting member,
The connecting fastener is inserted through a feed pawl insertion opening provided on one side of the feed path for guiding loading so as to be positioned inside the engaging piece, thereby restricting inward bending of the engaging piece. A guide piece is provided on the feed piston, and when the feed piston moves forward, the tip engages with the engagement recess of the engagement piece, and when the feed piston moves back, it rotates to engage the engagement piece. A feeding device for a connecting fastener, characterized in that it is provided with a feeding claw that can be turned freely so as to be able to escape.