JPS5812193Y2 - String-like object - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a string-like object made of synthetic resin, and particularly to a string-like object used when connecting two or more articles or attaching a label to a product.

String-like materials used for purposes similar to those of the present invention include Japanese Patent Publication No. 46-11373, Japanese Unexamined Patent Publication No. 50-492, Japanese Unexamined Patent Publication No. 117268-1982, and Japanese Utility Model Publication No. 47-39.
This method has been proposed in Publication No. 739, Japanese Utility Model Publication No. 4741034, etc.

The above-mentioned string-like object is integrally molded from synthetic resin, so it has excellent productivity, and it can be engaged with one touch, making it easy to operate. It has become.

However, the structure of the string-like object described in the above publication is such that the head is provided with a resilient claw or teeth, and a locking portion provided at the other end of the head is used to push the claw or teeth apart. and insert
Therefore, the structure of the engaging portion is complicated.

As the structure of the engaging portion becomes more complex, the mold for molding it naturally becomes more complex, and the number of movable parts in the mold increases.

The increased number of movable parts means that it is not possible to downsize the engaging part of the string-like object, and in the end, only a large string-like object can be obtained, and the mold becomes complicated and expensive. ,
In addition, there were various problems such as a relatively short lifespan of the mold and an increase in manufacturing costs.

On the other hand, because the head of conventional string-like objects is cylindrical,
There was a problem that it was difficult to grip and the fingertips got tired when working for a long time.

The present invention was obtained in order to solve the problems of the prior art, and has a significantly simple structure, is easy to manufacture, is easy to handle, and is difficult to disengage once engaged. A string-like object having a structure is provided.

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a side view showing the appearance of the string-like object of the present invention, in which 1 is the head, which has a flat shape as described in detail above, and a filament part 2 is extended from the corner of one side of the head. A locking portion 3 is provided at one end of the filament portion 2 .

The filament part 2 is composed of a stretched part 2a and an unstretched part 2b, or is composed entirely of a stretched part or an unstretched part. The length of has been determined.

The first feature of the present invention lies in the shape of the head 1 and the structure of the engaging portion.

The head 1 is flat as shown in Fig. 2, and its dimensions are, for example, 6.5 mm in width L1 and 5rIr in length L2! n,
The thickness L3 is 2 mm, and the insertion hole for engagement is 1.5N.

Although these dimensions are shown for reference, it can be seen that an extremely compact and flat product can be obtained.

The head 1 is flat, and the filament part 3 extends from the corner P of the thick side end face of the head 1, and the locking part 3 is inserted into the head 1 from the thick side end face along both sides. A hole 4 is formed so that when the head 1 is held, the position of the insertion hole 4 for inserting the locking part 3 can be naturally found.

A stopper part 5 protrudes in an annular shape at the back of the insertion hole 4, and this part has a wall thickness that allows it to be easily deformed when the stopper part 3 passes through.

As can be seen from Figure B, the thickness L4 of the thin portion 6 between the insertion hole 4 and both side surfaces of the head 10 is extremely thin, and is 0.3 wn in the dimensions illustrated above.

Therefore, when the locking part 3 is inserted beyond the stopper part 5, this thin part 6 moves in the direction of the arrow XX, that is, the head 1
expands in the thickness direction, and the stopper 5 becomes in a state that allows the locking portion 3 to easily pass through.

Note that 7 is a space for inserting the locking part 3 and for making it easier to expand the thin part 6.

FIG. 4 shows a state in which the locking part 3 is pushed into the insertion hole 4 and engaged. When the locking part 3 passes through the stopper part 5, mainly the thin wall part 6 expands. The maximum diameter portion 3a of the stop portion 5 and the lock portion 3 are also slightly deformed so that they can easily engage with each other.

Furthermore, if a funnel-shaped guide surface 8 is formed on the side surface of the head 1 around the insertion hole 4, the work of inserting the locking part 3 into the insertion hole 4 becomes easier.

The basic shape of the stop portion 5 is shown in FIG. 2A, but it may also have a small sawtooth cross section as shown in FIG. It may be formed as follows.

In any case, it is preferable that the locking part 3 is strong enough to be easily inserted and cannot be easily pulled out once inserted.

Further, as a further modified example, as shown in FIG.
If this is provided, the wall surface 4a will serve both as a guide surface and a stop portion, resulting in a simpler structure.

As shown in the figure, the locking part 3 is suitably mushroom-shaped.
The maximum diameter part is larger than the diameter of the stopper part 5, but in some cases, as shown in FIG. 8, the skirt part 3b is provided on part or all of the maximum diameter part of the stopper part, making it more difficult to release the engagement. It may also have a shape.

Although the embodiment described above shows the insertion hole 4 provided in one side of the head 1, it is also possible to insert the locking part 3 from both sides.

Figure 3 shows this example, with an insertion hole 4 in the center of the head.
By4c may be provided, and a stop portion 5d may be provided in an annular shape in the middle thereof.

According to this embodiment, it is symmetrical with respect to the center line and is flat as a whole, so it is extremely easy to grasp, and
There is no need to be careful at all when inserting the locking part.

The first feature of the present invention is that, as described above, the head is made into a flat plate shape, and thin-walled portions 6 are formed on both sides of the insertion hole 4, so that the thin-walled portions 6 can be easily expanded.

In conventional string-like objects, complicated structures such as elastic claws and movable teeth were required to lock the locking portion, but in the present invention, the locking portion 5 has movability. The locking part 3 and the stopper part 5 engage with each other by giving expandability in the thickness direction of the head 1 to the thin part 6 formed between the insertion hole 4 and both side surfaces of the head 1. Because of this structure, the structure of the stop portion 5 and the head portion that engages with the stop portion 5 is significantly simplified.

As a result of the significantly simplified structure of the stop portion 5, the head 1 can be made small and flat.The fact that the head 1 is flat makes it easy to hold and stable. Handling of the string-like object becomes extremely easy, and a decrease in work efficiency during long hours of label attachment work, for example, can be prevented as much as possible.

In the embodiment shown in FIGS. 1 and 2, the head 10
Since the filament part 2 is placed closer to one corner, it is easy to confirm the position of the hole 4 for inserting the locking part 3. In addition, in the embodiment shown in FIG. 10 It is extremely easy to operate since it can be inserted from both sides.

As mentioned above, the present invention significantly simplifies the structure of the engaging part, which simplifies the molding die, reduces the manufacturing cost of the die, and extends the life of the die. The manufacturing cost of the invented string-like object can be further reduced.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a side view showing the overall shape of the string-like object, and Figs. 2A and B are side sectional views and front views of the head according to the first embodiment. Figures 3A and 3B are a cross-sectional view and a front view of a double-sided insertion type head according to the second embodiment. Fig. 4 is a sectional view showing the state of engagement between the head and the locking part;
6 and 7 are cross-sectional views showing various shapes of the retaining stop provided on the head. FIG. 8 is a sectional view showing an embodiment of the locking portion. 1...head, 2...filament part,
3... Locking part, 4... Locking hole, 5
...Stopping part, 6...Thin wall part.

Claims (1)

[Scope of utility model registration request] It consists of a flat plate-shaped head, a filament part extending from the thick end face of the head, and a locking part provided at one end of the filament part. An insertion hole for the locking part is provided extending along the insertion hole, a thin part is formed between the both side surfaces and the insertion hole, and a stop part protruding annularly is provided in the insertion hole, The locking part has no mushroom shape and its maximum diameter is larger than the diameter of the stopper, so that the thin part can expand in the thickness direction of the head when the locking part passes through the stopper. A string-like object made of synthetic resin.