JPS6011122B2 - Membrane rope hole reinforcement fitting installation device - Google Patents

Description

[Detailed Description of the Invention] The present invention provides tents, sheets, rucksacks, bags,
The present invention relates to a device for reinforcing and forming rope holes in products using membranes such as canvas or reinforced plastic sheets, such as belts, using only eyelets or eyelet rings.

In general, ropes and strings are used to assemble and secure structures such as tents, canopies, and seats, and molded products using membranes such as backpacks, bags, and belts have holes for passing ropes and metal fittings. It is provided.

These holes are reinforced with metal fittings (grommets), but conventionally a circular hole is punched out at the position of the rope hole, and the cylindrical part of the eyelet is inserted into the hole, and the cylindrical part of the eyelet is inserted into the hole on the opposite side of the purulent body. The menet eyelet was inserted into the hole, and the upper part of the cylindrical part of the on-hand eyelet was expanded and inverted to prevent the menet eyelet from slipping out and to be tightened. However, in this case, each eyelet is simply attached to the hole, and when force is applied, the hole is deformed or damaged, causing the eyelet to fall out, which is often inconvenient. Moreover, this hole tends to be made larger for the ease of eyelet fixing work and for automatic eyelets, which further exacerbates the above-mentioned drawbacks. Because the holes are larger than the edges of the membrane body and are located on the inside, the lobe holes are separated from the reinforcement part of the membrane twill part, and the distribution of the force applied to the lobe holes is hindered, making it easier for the lobe holes to overlap.
When forming a through hole, there are various problems such as punching chips getting stuck in the punching tool, resulting in poor punching. Therefore, the inventor of the present invention proposed a membrane M as shown in FIG. 1 instead of the conventional through holes.
Radial cuts 11 are made at the positions where the rope holes are to be provided.
The cut hole 1 is approximately equal to the outer diameter of the cylindrical part of the eyelet.
and developed a technology for forming rope holes A and B reinforced only by the eyelets 2 as shown in Figure 2.
No. 7511).

Among these, in the one shown in FIG. 2a (rope hole B), the tongue piece 12 covering the notch hole 1 is bent by inserting the on-eyelet cylindrical portion 21 into the notch hole 1. In the case shown in FIGS. 2b and 2c (rope hole A), the on-eyelet cylindrical part 21 is inserted from the tip direction of the bent tongue piece 12.・・・・・・
The cylindrical part upper part 21a of the on-eyelet is expanded and inverted, and the peripheral part 13 of the cut hole is rolled up between the cylindrical part upper part 21a, the cylindrical part 21, and the collar green part 22 and fixed with cotton, which makes it easier to use than conventional reinforcing rope holes. It has the advantage that the tensile strength is increased by about twice as much, and the weight can be reduced. However, Fig. 2 b, c
The one shown in FIG. 2 is superior to the one shown in FIG. 2A in terms of strength and aesthetics, but it has the disadvantage that it is difficult to insert the eyelet 2 into the cut hole 1.

The present invention provides an apparatus for easily and reliably forming the reinforcing rope holes A shown in FIGS. 2b and 2c, and will be described in detail below based on the embodiments shown in the drawings.

3 to 5 show an example of the device according to the present invention (semi-automatic type driven by hand), in which a table 4 fixed to a base 3 and a working hole provided in the table 4 are shown. 41, a cutter 5 and a slider 6 which are located above and below the working hole 41 and move up and down, respectively, and a device for driving these.

3 is a front view of the device, FIG. 5 is a partially enlarged sectional view showing the main parts thereof, and FIG. 4 is a side view, all of which show the device in the standby position. First, the cutter 5 has a cylindrical shape with a pyramidal blade at its tip 5a, and is adapted to be attached to a cutter holder 51.

The cutter holder 51 is driven up and down within the cylinder 52 of the head portion 32 by a crank 71 and an arm 72 that are rotated by operating the handle lever 7 . Also code 8
is a membrane presser which descends in advance of the cutter 5 and fixes the membrane M on the table 4, and is similarly driven up and down by a piston 82 which moves up and down within the cylinder 81 of the head section 32. In the figure, 83 is a crank, 84 is an arm, 85 is a spring, 86 is a pin, and 87 is a slot for the pin. On the other hand, the slider 6 is supported by a slider holder 61, and similarly to the cutter holder 51, it is moved up and down by an actuating rod 62 that moves up and down when the handle lever 7 is operated, and a seesaw lever 63 that is driven by the actuating rod 62.

The upper end surface 6a is provided with an annular groove that follows the shape of the eyelet flange edge. Further, above the upper end surface 6a, an end portion of a guide 65 that guides the eyelet 2 from the hopper 64 with the cylindrical portion 21 facing upward is located. In the figure, 73 is a crank 74, an arm, 66 is a bolt for adjusting the level of the upper end surface 6a of the slider, 6
7 is a stopper provided at the entrance end of the guide 65, and 68 is a spring that biases the seesaw lever 63 so that the slider side moves downward. The membrane M placed at a predetermined position on the table 4 is fixed in position by the descending membrane presser 8 as shown in FIG. is formed.

In this case, the number of tongue pieces 12 is preferably 3 to 6 (4 in this example). Subsequently, the cutter 5 further descends, and each tongue piece 11
. . . is bent downward and passes through the inside of the eyelet 2 cylinder to reach the slider inner hole 6b. At this time, the guide 65 is pushed in the direction of the support column 31 by the pusher 53 that descends together with the cutter holder 51, and only one eyelet at the end remains skewered through the cutter 5. Before and after this, the slider 6 begins to rise, lifts the eyelet 2, and inserts the cylindrical portion 21 between the tongue pieces 12 and the outer periphery of the cutter (FIG. 7). During this time, the cutter 5 continues to descend further, and the on-eyelet cylindrical portion upper part 21a is expanded and reversed between the caulking tool 5b provided in the middle of the cutter 5 and the slider upper end surface 6a, and the eyelet fitting 2 is caulked to the membrane body M. Fixation is performed (Figures 8 and 9).

In this case, since the crimping of the eyelets is done against the soft membrane M, it is preferable to apply pressure relatively gently so as not to cover the fabric and to sufficiently press the membrane. . In addition, since the outer diameter of the cutter 5 is finished to a size that allows it to be inserted into the on-eyelet cylinder, the cut hole 1 is also smaller than the outer diameter of the on-eyelet cylinder, so that the cutter 5 can be inserted (press-fitted) into the on-eyelet cylinder part 21 into the cut hole 1. The peripheral edge 13 of the cut hole is warped, and the winding and caulking into the cylindrical portion can be performed extremely well and reliably. In the above, the cutter 5, the membrane presser 8, and the caulking tool 5b are connected to the table 4, that is, the membrane M.
The slider 6 is disposed above the slider 6 and the slider 6 is disposed below. Although this is more convenient to use, it is of course also possible to use the slider 6 upside down.

In this way, the reinforced rope hole A shown in FIGS. 2b and 2c can be easily and reliably made in one step.

The one shown in Fig. 2c is a case where the eyelet 2 is a regular eyelet with the flat outer ring 22a of the green collar part 22 removed. The green part 22 of the flange is completely embossed with iron, making the strength of the membrane M in this part even stronger, and the eyelet can be made smaller and lighter. Next, in the above embodiment, the slider 6 and the cutter 5 are driven manually (semi-automatically) using the handle lever 7, but these drives can be performed by hydraulic pressure or a motor as well as feeding the membrane M. It is also possible to automate the entire device by using power such as

For feeding the membrane body, it is preferable to provide a feeding layer similar to a sewing machine on the table 4, or the stitching, piping, etc. of the edge of the shade body using a sewing machine and the eyelet fixing may be performed successively.
In addition, in order to provide a time difference between the drive of the cutter 5 and the slider 6, a gap is provided between the operating rod 62 that drives the slider and the seesaw lever 63.
This gap can also be eliminated by using cams instead of the arms 72 and 74 to make the cutter holder 51 and the operating rod 62 move, and by changing the shapes and dimensions of both cams.

Alternatively, a gear may be provided on the handle lever shaft, and a worm may be carved on the cutter holder or the operating rod. The concentrated body presser 8 may be driven by a cam or a worm, but instead of being driven separately, the cutter holder 51' may be attached and biased downward by a spring. Furthermore, in this example, caulking tool 5
6 is integrated with the cutter 5, but the cutter 5 is made separately.
It may also be mounted on the outside and driven separately. Further, the V supply device for the on-eyelet 2 is not limited to the one shown in the drawings, and any V supply device may be used as long as the V supply device is supplied to the upper end of the slider one by one. However, it is also possible to set them one by one by hand. Note that the table 4 may be as large as shown in the illustration when processing the green part of a tent, but it should be wider when processing the center part of a large membrane body, and the table 4 should be wide enough to accommodate the handle lever 7 and the head part. It is preferable that the dimension from the support column 31 supporting the cutter 32 to the cutter 5 (body dimension) be made large.

On the other hand, when processing one side of a narrow item or bag such as a backpack strap or belt, a smaller one is preferable, and a small one that doubles as the slider holder 61 and table 4, for example, a cylindrical one, is preferable. etc. can also be substituted. Next, FIG. 10 shows another embodiment, which is used when a reinforcing rope hole A' is formed using a ring 25 in addition to the eyelet 2, as shown in FIG. li.

This ring 25 is used in the position of a conventional men's eyelet, but because the width of the ring is wide in the case of a men's eyelet, the force is dispersed and the pressing force (cotton attaching force) is weakened, and the tongue piece 12
In some cases, the advantages of the notched type cannot be fully utilized, such as the green part 13 around the notched hole being insufficiently penetrated (although compared to the through-hole type, the strength is 1. be). However, in the case of a ring, the pressurizing area is small, and the diameter is larger than the expanded and inverted eyelet cylindrical upper part 21a, so it is difficult to grip particularly thick fabrics or several layers of canvas. It will be done. However,
The shape of this ring is not limited to a circular cross section, and other shapes such as an ellipse may be used, but a ring with a rectangular cross section with a smaller outer diameter of the eyelet may also be used. This ring 25 is
Prior to cutting into the membrane M with the cutter 5, it is necessary to place the membrane at the cutting position.
Various devices are conceivable that move according to the vertical movement of the cutter 5 and automatically connect the cutters one by one.

10a and 10b show an example of the ring supply V feeding device 9, which consists of a hopper 91 and a guide 92, and the guide tip 9
2a opens by pulling the bar 93 and the ring 25
One piece is released directly below the cutter 5. This lever 93 is adapted to be moved laterally in conjunction with the movement of the cutter holder 51, operating lever 62, or handle lever when the cutter 5 and membrane presser 8 are lowered. Then, prior to forming the incision hole in the membrane M, it is removed by the cutter 5, and as shown in FIG. 10c, the upper part 21a of the eyelet cylindrical part, which is expanded and reversed by the caulking tool 5b, is pressurized to prevent it from coming off. As explained above, according to the device of the present invention, the reinforcing rope hole is easily formed in one step by making radial cuts in the membrane body and inserting the eyelet from the side where the tongue piece of the cut hole is bent. It can be made reliably and greatly improves the efficiency and strength of rope hole formation.

[Brief explanation of drawings]

Fig. 1 is a plan view showing the cut hole of the membrane body according to the present invention, Fig. 2 a is a reference drawing showing a longitudinal section of the reinforcing rope hole, Fig. 2 b
, c are vertical cross-sectional views of reinforcing rope holes obtained by the device of the present invention, FIGS. 3 to 9 show an example of the device according to the present invention, FIG. 3 is a front view in a standby state, and FIG. is a side view, FIG. 5 is a partial enlarged sectional view showing the main part of FIG. FIG. 8 is a partially enlarged sectional view showing a state immediately before caulking, and FIG. 9 is a front view when caulking is completed. 10a and 10c show other embodiments, in which a is a partially enlarged sectional view, b is a plan view of the guide tip of the ring supply device, and FIG. 10c is a partially enlarged sectional view showing the state immediately before caulking. , FIG. 11 is a longitudinal sectional view of a reinforcing rope hole made with the apparatus shown in FIG. 10a. 1... Cut hole, 1
1... Radial incision, 12... Tongue piece, 2...
...On eyelet, 21 On eyelet cylindrical part, 25
...Ring, 4...Tefle, 5...
Katsu, 5b... crimping tool, 6... slider, 65... guide for supplying eyelets, 7...
...Handle lever, 8...Membrane body holder, 9
...Ring supply device, A, A'...Reinforcement rope hole, M...Membrane body. Figure 1 Figure 2 Figure 2 Figure ■ (a) Figure 3 Figure 2 (b) Figure 4 Figure 10 Figure C) Figure 5 Figure 11 Figure 6 Figure 7 Figure 8 Figure 0 figure

Claims (1)

[Scope of Claims] 1. A columnar cutter with a radial blade for forming a cut hole in the membrane body is inserted into one of the upper and lower sides of the working hole of the table on which the membrane body is supported and placed, and an on-eyelet is inserted into the cut hole on the other side. 1. An apparatus for attaching a reinforcing metal fitting for a rope hole in a membrane body, comprising a slider and a caulking tool for caulking an eyelet between the slider and the slider. 2. The slider and the caulking tool are supported so as to be able to rise and fall on the lower and upper sides of the table, respectively, and are configured to be moved toward and away from each other by a drive device with a membrane placed on the table as a boundary, and are interlocked with the drive device. The connected katsuta are
During the caulking operation of the drive device, the blade approaches the membrane from above ahead of the slider and caulking tool, and after the tip of the cutter penetrates the membrane and forms a cut hole, the slider rises and inserts the eyelet into the cut hole. and then attaching the rope hole reinforcing metal fitting to the membrane body according to claim 1, wherein the on-eyelet is caulked so as to wrap around each tongue piece bent around the cut hole and the peripheral edge of the cut hole. Device. 3. The rope hole reinforcing fitting attachment device for a membrane body according to claim 1 or 2, wherein the caulking tool is integrated with a columnar cutter. 4. A columnar cutter equipped with a radial blade for forming a cut hole in the membrane body is provided on one of the upper and lower sides of the working hole of the table for supporting and mounting the membrane body, and a slider for inserting an on-eyelet into the cut hole is disposed on the other side, A membrane body further comprising a caulking tool for caulking the eyelet with the slider, and a membrane presser for supporting and fixing the membrane body on a table prior to cutting the membrane body with a cutter. Rope hole reinforcement fitting attachment device. 5. A columnar cutter equipped with a radial blade for forming a cut hole in the membrane body is disposed on one side of the upper and lower sides of the working hole of the table for supporting and mounting the membrane body, and a slider for inserting the on-eyelet into the said cut hole is disposed on the other side, In addition, it is provided with a caulking tool for caulking the eyelet with the slider, and furthermore, with a cutter,
A device for attaching a rope hole reinforcing metal fitting for a membrane body, characterized in that a ring supplying device is provided for supplying a ring that is inserted into the cylindrical part of the eyelet from the upper side of the membrane body to a cut position in the membrane body prior to caulking the eyelet. .