JPH0424Y2 - - Google Patents

Description

[Detailed Description of the Invention] Purpose of the Invention [Industrial Field of Application] The present invention relates to a press mold for hooks, and particularly to a press mold for hooks called the American hook W type.

[Conventional technology]

Conventionally, a hook generally consists of a male part attached to one fabric and a female part attached to the other fabric. It is composed of two members called a spring and a head.
Therefore, the press molds for attaching the male and female hooks to the fabric are the above-mentioned upper mold for the hook, lower mold for the tenon, upper mold for the spring, and lower mold for the head. Four molds were used.

In addition to the above-mentioned molds, there are molds described in, for example, Japanese Utility Model Application Publication No. 141026/1983, which was devised by the same applicant as the present application. That is, in the publication, the lower mold is made into a short cylindrical shape, a male mold with a convex part is formed on one side, and a female mold with a concave part is formed on the other side, while the upper mold is made into a slightly longer cylindrical shape. , molds corresponding to the male and female molds of the lower mold are respectively formed, the lower mold can be engaged and placed on the pedestal of the press, and a lower mold holder with a small hole is provided at the center of the lower part. A part of the upper mold can be fitted to a shaft rod which forms a part and is movable up and down, has a locking means, and has an upper mold fitting hole with a small hole formed in the center of the upper part. , a tabletop simple press is described. In other words,
A female mold for the spring is formed at one end of the upper mold, a male mold for the spring is formed at the other end, a male mold for the tenon is formed at one end of the lower mold, and a female mold for the head is formed at the other end. Each mold was formed, and there were two molds, one for the upper part and one for the lower part.

[The problem that the idea attempts to solve]

Among the conventional hook press molds mentioned above, the upper and
The one below that requires four molds requires a lot of effort to manufacture, and the cost of materials for the molds is quite high. In addition, it took a lot of time to attach and remove the molds during use, and it was difficult for amateurs to understand the combination of male and female molds in the upper and lower molds, making it easy to make mistakes.

In addition, in the case of using two molds, the number of molds is half that of the conventional four molds, so the cost of mold materials is lower and the combination of molds is much easier to understand even for a layman. , it has the advantage of being relatively easy to handle and making mold management easier. However, during work, the top and bottom of the upper mold must be reversed for the male hook and the female spring, and the lower mold is also used for the male hook and the female spring. For head use, you need to reverse the top and bottom. Therefore, it is still time-consuming, and there are problems such as the fact that some people make mistakes in the combination of molds.

Moreover, recently there has been an increase in the number of hooks called American hook W type. This hook is not bulky when attached to fabric, and is also difficult to come off when attached to knitted fabric, for example.The female side of the hook is made up of a spring and a head, just like before, but the male side is made up of a spring and head. The shape of the genko was changed and the head was used instead of the tenon.
When the configuration of the hook itself changes in this way, it becomes difficult to use conventional press dies, and on the other hand, there is a desire for a dies that are easier for amateurs to use.

The present invention is an attempt to solve the problems of the conventional hook press molds mentioned above. In other words, the purpose of the present invention is to reduce the cost of materials during mold manufacturing by requiring only two molds, and to reduce the cost of materials when manufacturing the molds.
It eliminates the need to replace the top and bottom regardless of the female side, improves work efficiency by eliminating the trouble of removing and installing, and eliminates any mistakes in mold combination even by amateurs, eliminating the occurrence of work errors. , to provide a mold for a press for hooks.

Composition of the invention [Means for solving the problem] The mold for the hook press of the invention consists of two molds, an upper mold 1 and a lower mold 2. The upper mold 1 has a short cylindrical shape with the upper part It can be attached to the shaft rod 3 of the press, and has a shallow round recess 6 slightly larger than the outer diameter of the spring 4 and the spring 5 at the lower end, and a small hole 8 in the depth thereof into which the protrusion 7 of the spring 4 can engage. an elastic body 1 having a shape in which at least a portion 18 of the inner circumference 9 of the round recess 6 becomes smaller inward;
0, and the lower mold 2 can be placed on the pedestal 11 of the press, and has a shallow round recess 13 slightly larger than the outer diameter of the head 12 at its upper end.

In the above configuration, the spring 5 and the head 12 that make up the female part of the hook have the same shape as the conventional one as shown in FIGS. This is different from the conventional method. That is,
This rod 4 has a curved outer peripheral portion 15 formed on its outer periphery, which can engage each protrusion 14 of a head 12 used in place of a conventional tenon.

In the upper mold 1, at least a portion of the inner circumferential portion 9 of the round recess 6 is reduced inwardly, which means that it becomes slightly smaller than the outer diameter of the spring 4 and the spring 5. It is sufficient to do as shown in FIGS. 3 to 3 or 7 to 11. That is, the first
In the case shown in FIGS. 1 to 3, a vertical groove 16 is formed from the side surface of the upper mold 1 to reach slightly inside the inner peripheral part 9 of the round recess 6, and the elastic body is formed in the vertical groove 16. , piano wire or other elastic detail piece 1
0 inside, and an elastic ring 19 that tightens the detail piece 10 is engaged so that a portion 18 of the detail piece 10 slightly protrudes into the inner circumference 9 of the round recess 6.

7, a hole 22 is formed near the lower end of the upper mold 1 from the side surface to the inner peripheral part 9 of the round recess 6, and a part 18 is formed as an elastic body inside the inner peripheral part 9. It is made by enclosing an annular spring 10 that slightly protrudes from the inside.

Furthermore, FIGS. 8 to 11 show an example in which an elastic annular body 10 made of rubber or resin is used as the elastic body, and in FIG. 8, near the lower end of the upper mold 1,
An elastic annular body 10 having an inner diameter slightly smaller than the inner diameter of the round recess 6 is fitted therein. In FIG. 9, the round recess 6 itself at the lower end of the upper mold 1 is formed by enclosing an elastic annular body 10 as the elastic body. It is made slightly smaller than the outer diameter. Furthermore, in the case shown in FIGS. 10 and 11, the round recess 6 itself at the lower end of the upper mold 1 is formed by enclosing an elastic annular body 10 as an elastic body. 10 is divided into two parallel to the center line,
The annular ring 19 is tightened and fitted, and a coil spring 23 is fitted near the upper part of the upper mold 1 to press the elastic annular body 10 downward.

Note that the means for attaching the upper mold 1 to the shaft rod 3 of the press is to form a male threaded portion 21 near the top of the upper mold 1 and screw it into the female threaded portion of the shaft rod 3, as shown in the illustrated example. Alternatively, although not shown, a rubber ring may be wrapped around the outer periphery of the upper mold 1 and inserted into the hole of the shaft rod 3, or other means may be used. good.

In the figure, 20 is the curved outer circumference of the spring 5, a,
b is cloth.

[Effect]

To use the press mold of the present invention, attach the upper mold 1 to the lower part of the press shaft 3, and
The lower mold 2 is placed on the pedestal 11 of the press.

First, in order to attach the male end of the hook to one of the fabrics a, for example, as shown in FIG. The head 12 is engaged and locked so that it enters the hole 8, and the head 12 is engaged with the round recess 13 of the lower mold 2 so that the protrusion 14 faces upward.

In this case, the locked state of the rod 4 is such that the inner diameter of the round recess 6 of the upper mold 1 is slightly larger than the outer diameter of the rod 4, but as described above, the inner circumference 9 of the round recess 6 is connected to the elastic body 10. is inwardly reduced in size, at least in part 18. Therefore, the outer peripheral edge of the genco 4 is locked, and the genco 4 does not separate from or fall from the round recess 6.

In this state, the fabric a is placed between the holder 4 and the head 12, and the press lever is pressed to push down the upper mold 1. The curved outer circumferential part 15 of the descending Genko 4 fits into the protrusion 14 of the head 12 on the lower mold 2 through the fabric a, and the protrusion 14 curves and engages inside the curved outer circumferential part 15 of the Genko 4. Then, the male end of the hook is attached to fabric a.

Next, in order to attach the female side of the hook to the other fabric b, as shown in FIG. The head 12 is also engaged in the round recess 13 here. In that case, the upper mold 1 that engages and locks the spring 5 is the same upper mold 1 that was used when attaching the male hook.
It can be used as is, and there is no need to replace it with another upper mold or reverse the upper and lower parts.

In the locked state of the spring 5 at that time, the inner diameter of the round recess 6 of the upper mold 1 is slightly larger than the outer periphery of the spring 5 as described above, but the inner diameter of the round recess 6 is held by the elastic body 10. At least a portion 18 of the portion tapers inwardly. Therefore, the spring 5 is locked and does not come off or fall from the round recess 6.

Therefore, in the same way as above, place the fabric b between the spring 5 and the head 12, press the press lever, and press the upper mold 1.
If you press down, the spring 5 will descend, and the curved outer circumference 20 of the spring 5 will move through the fabric b to the head 12.
The protrusion 14 curves and is locked in the curved outer circumferential portion 20 of the spring 5, so that the female end of the hook is attached to the fabric b.

〔Example〕

In the illustrated embodiment, the inner periphery 9 of the round recess 6 is made inwardly smaller in at least a portion 18 of each upper mold 1 by means of the elastic body 10, but in FIGS. 1 to 3, Since the part 18 of the detail piece 10 as an elastic body, and also the part 18 of the annular ring 10 as an elastic body in FIG. A portion 18 locks the outer circumferential edge of the lever 4 and the spring 5. In addition, in FIGS. 8 to 11, the inner diameter of the elastic annular body 10 as an elastic body is
Since it is slightly smaller than the outer diameter of the spring 5, the inner peripheral portion of the elastic annular body 10 locks the outer peripheral edge of the spring 5 and the spring 5. In addition, in FIGS. 10 and 11, the elastic annular body 10 is located near the bottom of the upper mold 1 and can slide parallel to the center line, so the elastic annular body 10 is moved during pressing.
0 is slightly shifted upward, making it easier to remove the spring 4 and spring 5 inside the round recess 6.

Effects of the Invention The above-mentioned hook press mold of the present invention has the following effects.

Unlike the conventional method, only two molds are needed, an upper and a lower mold, which reduces the cost of materials during mold manufacturing and reduces costs.

That is, most conventional molds of this type require a total of four molds, two for the male hook and two for the female hook. Therefore, the cost of materials for the mold was high, and the mold was also expensive. However, as mentioned above, the mold of the present invention only requires two pieces in total, regardless of whether the hook is male or female, which reduces the cost of materials during mold manufacturing, and reduces the time required to manufacture the mold, reducing delivery delays. You can also eliminate it.

Unlike conventional molds, once the upper and lower molds are attached to the press when the mold is used, they can be used as they are regardless of whether the hook is male or female.

That is, in the conventional mold of this type, a total of four molds were required for the upper and lower molds as described above. Therefore, it is necessary to attach the male end of the hook to the fabric using the upper and lower molds for male molds, and then replace the upper and lower molds with the female molds, which is time-consuming and difficult for amateurs to use. It was difficult to understand the combination of male and female molds, and many mistakes were made. On the other hand,
Some models have male and female molds formed at each end of the upper and lower molds, reducing the number of molds to two, thereby reducing the cost of materials during mold manufacturing. However, for the upper and lower molds, the male hook must first be attached to the fabric, and then the upper and lower molds must be reversed for the female hook, which is still time-consuming. In addition to this, amateurs sometimes made mistakes in the combination of male and female molds.

On the other hand, the mold of the present invention has two male and female molds formed at the lower end of the upper mold and at the upper end of the lower mold. There are two molds in total so that the male and female springs can be locked. Therefore, with the mold of this invention, once both the upper and lower molds are attached to the press, they can be used regardless of whether the hook is male or female.
There is no need to replace the lower mold, or to reverse the upper and lower molds, and there is no chance of making a mistake in the combination of male and female molds. Therefore, even an amateur can easily and quickly attach the hook.

[Brief explanation of the drawing]

The figures show an example of the invention of the present invention. Figure 1 is an enlarged partially cutaway front view of the upper mold and lower mold, and Figure 2 is the upper mold and lower mold when the male side of the hook is press-fitted. Fig. 3 is a partially cutaway front view of the upper and lower molds when the female side of the hook is press-fitted; Fig. 4 is a partially cutaway front view of the Genko; Figure 5 is a partially vertical front view of the spring, Figure 6 is a partially vertical front view of the head, Figure 7 is a perspective view of another embodiment, and Figure 8 is a partially vertical front view of the spring.
9 is a partially cutaway enlarged front view of another embodiment, FIG. 10 is a partially longitudinal sectional front view of another embodiment, and FIG. 11 is a cross-sectional plan view taken along the line A-A in FIG. 10. be. Drawing code, 1... Upper mold, 2... Lower mold, 3...
...Axis rod, 4...Gents, 5...Spring, 6...Round recess, 7...Protrusion, 8...Small hole, 9...Inner circumference, 1
0...Elastic body, 11...Pedestal, 12...Head,
13...Round recess, 14...Protrusion, 15...Curved outer circumference, 16...Vertical groove, 18...Part, 19...
...Elastic ring, 20...Curved outer peripheral part, 21...Male thread part, 22...Hole part, 23...Coil spring, a
...Fabric, b...Fabric.

Claims (1)

[Scope of claim for utility model registration] Consists of two molds: upper mold 1 and lower mold 2. Upper mold 1
It has a short cylindrical shape, and the upper part can be attached to the press shaft 3, and the lower end has a shallow round recess 6 that is slightly larger than the outer diameter of the spring 4 and the spring 5, and the protrusion 7 of the spring 4 is located at the back of the shallow circular recess 6. An elastic body 10 is provided which has an engageable small hole 8 and at least a portion 18 of the inner circumference 9 of the round recess 6 becomes smaller inward, while the lower die 2 can be placed on the pedestal 11 of the press. , a mold for a press for hooks, which is provided with a shallow round recess 13 slightly larger than the outer diameter of the head 12 at the upper end. A vertical groove 16 is formed in the upper mold 1, reaching slightly inward from the inner peripheral part 9 of the round recess 6 from the side surface, and an annular groove 17 is formed near the lower end of the upper mold 1, and the vertical groove 16 is formed in the upper mold 1. 16, a detail piece 10 having elasticity as an elastic body is engaged, and an elastic ring 19 that presses a portion 18 of the detail piece 10 inside the inner peripheral portion 9 is engaged in the annular groove 17. The mold for a hook press according to claim 1. A round recess 6 is formed from the side near the lower end of the upper mold 1.
2. A press for hooks according to claim 1, wherein a hole 22 is formed in the inner circumferential portion 9 of the hook, and the elastic body is an annular spring 10 whose portion 18 slightly projects into the inner circumferential portion 9. mold. 2. The hook press mold according to claim 1, wherein an elastic annular body (10) having an inner diameter slightly smaller than the inner diameter of the circular recess (6) is enclosed near the lower end of the upper mold (1) as an elastic body. A hook 4 is placed near the bottom end of the upper mold 1.
In order to form a round recess 6 for engaging and locking the spring 5 and the spring 5, an elastic annular body 10 having an inner diameter slightly smaller than the outer diameter of the spring 4 and the spring 5 is enclosed as an elastic body. 1. The mold for the hook press described in 1. In order to form a round recess 6 near the bottom of the upper mold 1 for engaging and locking the hook 4 and the spring 5, an elastic body with an inner diameter slightly smaller than the outer diameter of the hook 4 and the spring 5 is formed. According to claim 1, the elastic annular body 10 is divided into two parts, which are tightened and fitted together by an elastic ring 19, and a coil spring 23 that presses the elastic annular body 10 downward is fitted in the upper mold 1. Press mold for the hook described.