JPH0217417B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a mounting piece assembly made of synthetic resin in which heads and horizontal rods are assembled in a "super dense state".

More specifically, the present invention provides a compact collection of so-called tag pins that can attach a price tag to a product with a single touch or connect multiple products together.

In addition, the "super dense state" as used in the present invention means an assembly of mounting parts in which the horizontal bar part and the cavity of the head are brought close to each other within a range that can be formed, and is different from that of a conventional mounting part assembly. It is extremely densely packed compared to , and at first glance it looks like an H-shaped block,
This means that there is no room for the heads of other attachment piece assemblies to fit between the heads.

[Prior art]

As shown in FIG. 7, the mounting piece p (pin) is
The head 1, the horizontal bar part 2, and the filament part 3 connecting these are formed into an H-shape as a whole, and are connected to a connecting rod 5 via a connecting part 4 to form a mounting piece assembly P made of thermoplastic material. It is integrally molded from synthetic resin.

This attachment piece assembly P is loaded into a pistol-shaped attachment device, which separates it into individual attachment pieces P, which can be used to attach price tags such as tags to products, or to connect two or more products. It is something to do.

In order to facilitate manufacturing, packaging, transportation, and loading into the mounting device, this mounting piece assembly P is usually made up of 25 to 50 mounting pieces P.
The attachment piece assembly P is formed of a molecularly oriented thermoplastic resin such as nylon or polypropylene while being erected on the connecting rod 5 of the book.

On the other hand, the normal attachment piece assembly P is designed to avoid damage to the product by making a large hole when the horizontal bar passes through the product to which the tag is attached. The diameter of the bar 2 and the thickness of the head 1 are approximately 1 mm, and a gap of 1 mm is formed between the horizontal bar 2 and the head 1, so the pitch is 2 mm.
It's becoming mm.

In the mounting part assembly P in which the mounting parts p are arranged on the connecting rod 5 at intervals of 2 mm in this way, gaps equal to the thickness of the other heads 1 are formed between the heads 1, Since the head 1 or the horizontal bar 2 of another attachment piece assembly P can be inserted, for example, the problem of "entanglement" will occur during the packaging process or during the transportation of the packaged item. . In particular, when using an aggregate that has been transported in a container, a plurality of aggregates are picked up and taken out, but at that time, the tangled aggregates are taken out in the form of a lump.

The filament part 3 is stretched to increase its strength and reduce its diameter;
It is 0.35 to 0.4 mm, making it extremely delicate. Therefore, if the attachment piece assembly P becomes entangled, manual work is required to remove it, and this must be done with care.

Further, there was a problem in that the heads within one attachment piece assembly P "tangled" with each other even though the attachment piece assemblies did not tangle with each other.

Furthermore, as mentioned above, the mounting part p
If the mounting pieces are installed on the connecting rod 5 with a wide gap between them, the number of attachment pieces installed on the connecting rod 5 of a certain length is naturally limited. . For example, for a connecting rod with a length of 100 mm,
If the pitch is 2 mm, only 50 mounting pieces p can be assembled.

In the mounting piece assembly P in which the mounting pieces p are widely spaced as described above, not only a large mold is required, but also the packaging, transportation, and installation processes as described above require The problem of ``entanglement'' arose.

Among the above problems, in order to solve the problem of "entanglement", a method has been proposed in which the heads are connected with "a filament-like connecting piece that is cut by torsional force", but the problem of this connecting piece is Mounting piece assembly P
In order to tear off one attachment piece p, there is a drawback that small protrusions with sharp "whisker-like" tips remain on the surface of the head 1. These small protrusions have had the problem of getting caught in textile products made of delicate fibers, causing them to break or fray.

Another problem is that in the case of the mounting part assembly P in which 50 mounting parts are planted on the connecting rod 5 at a pitch of 2 mm, when it is loaded into a mounting device and used, the procedure shown in FIG. Not only did it have poor operability because it swayed and swayed, but it also caused problems such as thread breakage if it got caught on the product.

[Purpose of the invention]

The present invention was achieved in order to eliminate the drawbacks of the prior art, and its objectives are as follows.

(1) Extremely compact mounting piece assembly P
I will provide a.

(2) To provide an ultra-dense attachment piece assembly P that does not produce small protrusions on the side surface of the head 1 and does not substantially cause tangles.

(3) The present invention provides a super-dense mounting piece assembly P that can manufacture a large amount of attachment pieces P using a small mold.

(3) Even if the mounting piece assembly P is made up of a large number of mounting pieces P, it will not shake during the driving operation like the conventional mounting piece assembly shown in Fig. To provide a mounting part assembly P that is firmly filled and supported, has little shaking and is excellent in handleability.

[Summary of the invention]

To achieve the above object, the present invention provides: (a) a mounting piece in which a head, a horizontal bar parallel to the head, and a filament connecting these parts are integrally molded from synthetic resin; (b) The head and horizontal rods are thickest at the center in plan view and gradually reduce in thickness toward both ends. (c) the head parts and the horizontal bar parts are arranged in close contact with each other and are connected to each other at the thickest part in the center via a connecting part; A mounting piece assembly characterized by having a strength that can be separated by torsional force, and a connecting part of the horizontal bar part having a strength that can be cut with a knife during a driving operation of a mounting machine. be.

As will be described later, the head part and the horizontal bar part are thickest at the center of their length, and there is virtually no gap in this part, making them significantly denser than in a conventional mounting piece assembly. The head itself and the horizontal bar part themselves are joined at the central part via a connecting part.

The connecting parts between the heads and the connecting parts between the horizontal bars are made of short filament-like materials,
The behavior when cut is different.

That is, the connecting portion of the head is strong enough to be "twisted and cut" when one attachment piece is separated from the attachment piece assembly during the operation of attaching the attachment pieces. On the other hand, the connecting part of the horizontal bar part has such strength that it is "mechanically cut" when the horizontal bar part is pushed out from the hollow needle by the piston. is so strong that it cannot be cut by normal handling. This means that
Even if the connecting portion of the head is cut off for some reason, the connecting portion of the horizontal bar portion will not be easily cut off, so that the form as an assembly of attachment pieces will be maintained.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

Fig. 1 is a front view of a mounting piece assembly according to a first embodiment of the present invention, Fig. 2 is a side view thereof, Fig. 3 is a plan view of the head, and Fig. 4 is a plan view of the horizontal bar. be.

One mounting piece p is composed of a head 1, a horizontal bar 2 parallel to the head 1, and a filament 3 located between them and connecting them. They are planted in a comb shape on the connecting rod 5 to constitute a mounting piece assembly P.

In this embodiment, the head 1 has a diamond shape with the widths of both sides reduced in plan view, as shown in FIG. In other words, the side surfaces are formed so that the thickness decreases from the center toward both ends, and as a result, a bulge 1a is formed in the center. This bulging part 1a is a joint part with the neighboring head 1, and is opposed to the bulging part 1a of the neighboring head 1, and is separated by the torsional force at the time of installation at the connecting part 1b at the tip. Possibly joined.

Furthermore, the central part of the horizontal bar portion 2 has a circular cross section;
As shown in FIG. 1, the thickness becomes thinner toward the ends than the circular center portion, and accordingly, it gradually becomes approximately elliptical, and in plan view, it is approximately diamond-shaped. As a result of forming the horizontal bar part 2 in this way, a connecting part 7 is formed in the center of the horizontal bar part 2 as shown in FIG. 4, and thereby the adjacent horizontal bar parts 2 can be cut together. is joined to.

Further, a V-shaped acute-angled gap 6 is formed between the two horizontal bars 2.

In the present invention, it is important that the heads 1 are joined together in a dense manner so that they can be easily cut, so that the heads 1 are arranged in an orderly manner in the form of a block. Furthermore, by arranging the heads 1 in an orderly manner in close contact with each other, the horizontal bar portions 2 are also arranged in an orderly manner in the form of one sheet.

The connecting part 7 formed at the center of the horizontal bar part 2 maintains the assembled state of the mounting pieces p during packaging, transportation, or handling, but the mounting parts p are separated one by one from the aggregate P by the mounting device. It is formed in such a size and shape that it can be easily separated by mechanical operation, that is, with a cutting blade, and that no whisker-like protrusions remain even after the separation.

Note that the connecting portion 7 is short and small, and is of such a length that it is not substantially stretched.

The above-mentioned separation of the horizontal bar portion 2 is performed by the mounting piece mounting device during the driving operation, and normally, when the horizontal bar portion 2 is pushed out by the piston of the mounting device, it is separated by shearing force. It is cut by cutting.

The connecting portion 1b provided at the center apex (the thickest part) of the bulging portion 1a on the side surface of the head 1 is a single attachment portion driven in by the attachment device during the attachment operation of the attachment piece p. Piece p and this attachment piece p are separated and twisted and cut by the "twisting force" caused by the relative movement between the assembly P loaded in the attachment device. Therefore, the strength of the cut connecting portion 1b is such that it can be easily cut without generating "whisker-like protrusions."

On the other hand, a connecting portion 7 formed at the center of the horizontal bar portion 2
constitutes the basic structure of the mounting piece assembly P, and cannot be easily cut during packaging, transportation, or handling operations, but can be cut with a cutting blade during the piston extrusion operation during the mounting operation. The strength is considerably greater than the strength of the connecting portion 1b of the head 1. A slight modification of the equipment used for driving conventional mounting piece assemblies, in which the mounting pieces are arranged at loosely spaced intervals on the connecting rod, is used. Specifically, the pitch of the gear that meshes with the connecting piece 4 may be reduced, or the gear of a conventional device may have every other tooth removed. It is possible.

In addition, as an innovative device that does not use gears as a means of feeding a mounting piece that can be mounted regardless of the pitch of the mounting piece, for example, the Japanese Patent Publication No. 59-29489
The apparatus described in Japanese Patent Application No. 54-123455 can be used. This device is capable of driving not only conventional mounting pieces with rough pitches but also ultra-dense mounting pieces assemblies according to the present invention, and is composed of extremely simple parts. , it has the advantage that no adjustment is required after assembly and there are almost no failures.

The mold for molding the mounting piece P is indicated by the arrow U in Fig. 2.
It consists of an upper mold shown by and a lower mold shown by arrow D.
Further, the lower die D is provided with push-out rods L that press the side surfaces of the horizontal bar portion 2 and the head 1, respectively.

When molding the attachment piece assembly P, the configuration is such that when the connecting part 1b formed at the highest part of the bulging part 1a of the head part 1 is cut, "whisker-like" protrusions are not formed. It is necessary.

To specifically illustrate the connecting portions 1b and 7, 66
In the case of nylon, if the joint area is about 0.6 x 0.4 mm, it can be broken with almost no stretching.

Things to keep in mind when determining the dimensions of the connecting parts 1b and 7 are: (a) flow of resin during molding, brittleness when solidified,
Various characteristics such as stretchability when attaching the mounting piece; (b) The mounting piece should not be easily cut during packaging or handling or when the mounting device is loaded; (c) Various conditions are considered, such as ensuring that there are no problems with durability, etc. Therefore, in many cases it is necessary to experimentally determine the dimensions and shape of the joints 1b, 7.

Further, in the embodiments shown in FIGS. 1 to 4, both the horizontal bar portions 2 and the head portions 1 are joined in the same way.

That is, as shown in FIG. 3, the head 1 is formed into a substantially rhombic shape in plan, so that the central part of the side surface bulges out in the shape of a pyramid, and the tips thereof are connected to each other by a thin, filament-like connecting part 1b. Join by. By configuring in this manner, the length of the connecting portion 1b can be made extremely short, and the connecting portions are not connected by a long filament-like connecting portion as in the case of a conventional attachment piece assembly. Therefore, when the head 1 is separated, the connecting portion 1b is not stretched and remains in the bulge portion 1a of the head 1 as a whisker-like protrusion.

In the attachment piece assembly P according to the present invention, the attachment pieces p are highly concentrated and are in a substantially close contact state, for example.
Even if there is a collection of 100 pieces, the length can be made around 100mm.

In FIGS. 5 and 6, the head 1A has the same shape as the horizontal bar part 2, and each head 1A and the horizontal bar part 2 have a connecting part 1b and a connecting part 1b at the center, as in the previous embodiment. 7
The horizontal bar portions 1b are connected to each other in a manner that they can be cut from each other, and the strength of the horizontal bar portion 1b is greater than the strength of the connecting portion 7.

Regarding the material from which the attachment piece assembly P is integrally molded, linear synthetic polymers such as nylon or polypropylene are used as ordinary molded products, for example, by stretching the filament part of the attachment piece in a heated or non-heated state. As a result of this stretching, the filament becomes longer while its cross section is reduced, and its strength gradually increases accordingly.

As a result of examining the relationship between the molding conditions of the linear synthetic polymer and the stretching conditions, the present inventors found that
It was confirmed that a special attachment piece could be obtained by molding without heating the mold.

That is, when molding is performed using a mold that has been cooled to a temperature of about 20° C. or lower, it becomes an amorphous state, and the filament portion 3 of the resulting attachment piece p has the property of being relatively easy to stretch. It was confirmed that it has.

By applying the characteristics of the attachment piece p in which the filament portion 3 is molded in the amorphous state to the present invention, when punching out the attachment piece with the attachment device,
This filament portion 3 can be stretched to an appropriate length.

A specific application of the attachment piece assembly P having such characteristics is that when a plurality of handkerchiefs, socks, etc. are tied together by the attachment piece P, the movement of the lever during the ejecting operation of the attachment device is Since the filament portion 3 can be stretched to an appropriate length, the filament portion 3 has a length that corresponds to the thickness of the article, and the article can be held securely.

The mounting piece assembly according to the present invention includes a mounting piece in which a head, a horizontal bar part parallel to the head, and a filament part connecting these parts are integrally molded of synthetic resin, and a connecting part is formed of a synthetic resin. In the attachment piece assembly that is installed on the connecting rod through the connecting rod, the head and the horizontal rod are thickest at the center in a plan view, and gradually reduce in thickness toward both ends, and the The heads and the horizontal bars are closely arranged and connected at the thickest part in the center via a connecting part, and the connecting part of the head can be separated by torsional force during the installation operation. Furthermore, the connecting portion of the horizontal bar portion has a strength that can be severed during the driving operation of the mounting machine, and therefore the following effects can be achieved.

(1) It is possible to provide a mounting piece assembly that is compact and has improved assembly.

The mounting pieces p are assembled in close contact with each other as if they were glued together to form a mounting piece assembly P.

In this situation, the head 1 (Figs. 1 and 2) is shaped like a single block, or a single sheet or blind (Figs. 5 and 6), and the horizontal bar portion 2 is shaped like a single block. They are arranged in the form of a sheet or a blind.

Since the horizontal bar portions 2 are densely arranged in a sheet-like manner and connected to each other, the connecting rod 5, the connecting portion 4, and the horizontal bar portion 2 form a solid foundation structure. The filament part 3 is erected in a comb shape on top of this basic structure, and the heads 1 and 1A connected to the tips of the filament part 3 are also closely joined, making it extremely compact.

Since both the horizontal bar portion 2 and the heads 1, 1A are integrally coiled and molded, they maintain an orderly shape regardless of the length of the filament portion 3, and exhibit excellent assemblage.

(2) It is possible to provide an assembly of mounting parts that is easy to handle and does not damage the product.

The connecting portion 1b at the center of the heads 1 and 1A is extremely short and weaker than the connecting portion 7 of the horizontal bar portion 2, so that it is easily cut off by torsional force during installation. It is composed of

On the other hand, since the horizontal bar portions 2 are connected to each other by a connecting portion 7 that is stronger than the connecting portion 1b, they are mechanically cut by a cutting blade during extrusion during the mounting operation in the mounting device.

In this way, the connecting rod 5, the connecting part 4, and the horizontal bar part 2 are integrated to form a basic structure, and since the filament part 3 and the heads 1, 1A are connected on this basic structure, the mounting part The piece assembly P is integrated into one piece and maintains a beautiful shape as a whole.

The horizontal bar portion 2 and the heads 1, 1A are arranged closely together, for example, between the horizontal bar portion 2, between the filament portion 3, and between the heads 1, 1A, there are other heads 1, 1A.
Since the assembly P of the mounting parts does not get entangled with each other, the packaging, transportation, and installation operations are extremely easy. can be done.

In particular, the heads 1 and 1A are in close contact with each other, and the connecting portion 1b is extremely short and is constructed to such an extent that it will not be stretched. is cut off. Therefore, no filament-like protrusions are formed on the side surfaces of the heads 1, 1A, and these protrusions do not damage products such as knitted fabrics.

On the other hand, the connecting part 7 provided at the center of the horizontal bar part 2 is strong enough that it cannot be easily cut.
Since the connecting portion 1b of the heads 1 and 1A can only be severed by twisting force, it may be severed during handling. Even in such a case, the mounting part p
Since they are tightly planted in a comb-like manner on the connecting rod 5, there is no possibility that they will fall apart and deteriorate in handling.

In addition, even if the assembly of mounting parts has the same number as the conventional one, the connecting rod 5 is shorter than the conventional one, and the connecting rod 5, the connecting part 4, the horizontal bar part 2, Since the connecting portion 7 connecting the horizontal bar portions 2 constitutes a solid foundation structure, the overall structure is extremely well-organized, and when it is loaded into the mounting device and operated, the mounting piece assembly P It has little vibration, has excellent operability, and is suitable for large-volume price tagging work.

Further, as shown in FIGS. 3 and 4, a wide gap is formed extending from the center of the head 1 and the horizontal bar 2 toward both ends. This distance serves to form a thin wall surface in the cavity portion of the mold while keeping the distance between the head 1 and the horizontal bar portion 2 to a minimum. Furthermore, since the horizontal bar portion 2 and the head portion 1 can be bent in an arc as a whole, the attachment piece assembly P is given flexibility as a whole, making it easy to handle.

(3) A mounting piece assembly with excellent productivity can be provided.

The attachment piece assembly P according to the present invention includes a horizontal bar portion 2
The heads 1 and 1A are arranged in close contact with each other in the form of a block or sheet, and at the same time the horizontal bar part 2
Since the connecting rods 5 are arranged in a sheet form, it is possible to maintain an orderly arrangement while using approximately twice or more the number of attachment pieces p for the same length of connecting rods 5 compared to a conventional assembly. can be accommodated.

Therefore, the attachment piece assembly P can be produced in large quantities and efficiently, and since the number of times the attachment device is loaded is reduced, a large amount of price tagging work can be done efficiently. .

(4) It is possible to provide a mounting piece assembly that is easy to manage in production.

Since the attachment piece assembly P according to the present invention is substantially compact and extremely compact, the mold for molding it can be downsized. By making the mold smaller, the temperature difference across the mold can be reduced, and in that sense, temperature control becomes easier.

Furthermore, since the resin flow path for one aggregate is short, there is no generation of defective products, and efficient production can be achieved.

[Brief explanation of drawings]

1 to 4 show a mounting piece assembly according to a first embodiment of the present invention, FIG. 1 is a front view of the mounting piece assembly, and FIG. 2 is a side view of the same. ,
3 is a view taken along the line A-A in FIG. 1, and FIG. 4 is a view taken along line B-B in FIG. 1. FIGS. 5 and 6 are front and side views of a second embodiment of the invention. FIG. 7 is a perspective view of a conventional attachment piece assembly, and FIG. 8 is an explanatory view showing the driving state of the conventional attachment piece assembly. p...Mounting piece, P...Mounting piece assembly, 1...
...Head, 1a...Bulging part, 2...Horizontal bar part, 3...
Filament part, 4... Connecting part, 5... Connecting part, 6... Small gap, 7, 1b... Joint part.

Claims (1)

[Scope of Claims] 1. A mounting piece in which a head, a horizontal bar parallel to the head, and a filament connecting these parts are integrally molded of synthetic resin is attached to a connecting rod through a connecting part. In the mounting piece assembly planted in the mounting part assembly, the head and the horizontal bar are thickest at the center in plan view, and gradually become thinner toward both ends, and the head and the horizontal bar are They are arranged in close contact and are connected to each other through a connecting part at the thickest part in the center, and the connecting part of the head has a strength that can be separated by the torsional force during the installation operation, and the horizontal bar part A mounting piece assembly characterized in that each of the connecting parts is formed so as to be strong enough to be cut with a knife during a driving operation of a mounting machine.