JPH07148197A - Method for producing sheet molding for long flooring and using flooring - Google Patents

Abstract

PURPOSE:To provide a method for producing a sheet molding with easy operation and efficiency, by forming a molding with projections on the surface by the injection molding method using a soft thermoplastic synthetic resin and leaving a part of one end of the molded sheet in the mold to form a subsequent molding. CONSTITUTION:The injection molding machine comprises a fixed metal mold 5 and a movable metal mold 6. Dents are formed on the inside surface of the mold 6. When producing a sheet flooring for the blind, first, an olefinic elastomer is injected through a injection nozzle 11 into a space 7 between the mold 5 and 6 to form a sheet molding 2a having projections 3 on the surface. Next, after moving the mold 6, the molding 2a is lifted up by a lifting means 8 to a certain position where the rear end of the molding 2a is left slightly in the space 7. And, the rear end of the molding 2a left in the space 7 is fixed with the fixed mold 5, and the elastomer is reinjected into the mold, whereat, the remainder of the rear end melts to form a subsequent molding.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet material such as a long floor material made of thermoplastic soft synthetic resin, particularly a sheet material for blinds and a method for manufacturing blind sheet materials which are constructed on a platform or a sidewalk. Regarding

[0002]

2. Description of the Related Art Conventionally, as a sheet material for blind persons, which has been constructed on a platform of a station or the like, as shown in FIG. Was fitted into the groove 14 provided in the place where the work was to be carried out until the required length was reached.

[0003]

However, the blind sheet material 15 as described above requires a plurality of sheet materials to be installed, and when installed over a long distance, the number of the sheet materials is very large. However, there is a problem in that the number is large and the construction work is complicated and takes a long time.

The present invention has been made in order to solve the above problems, and it is a sheet material for a blind person, a long floor material and the like which can be easily constructed and can be constructed in a short time. It is an object to provide a sheet material.

[0005]

In order to solve such a problem, the present invention is to form a molded body 2a having unevenness on the surface by injection molding of a thermoplastic soft synthetic resin, and one end of the molded body 2a. By molding the next molded body 2b in a state in which the portion is left on one side of the space 7 in the mold,
This is to produce a sheet material such as a long floor material having unevenness on the surface by contacting and joining the subsequent molded body 2b by heat fusion and repeating a plurality of molded bodies in series.

Further, the sheet material 1 such as a long floor material manufactured by the above means is a sheet material for the blind.

[0007]

According to the present invention, the next molding is performed while leaving one end of the molded body previously molded in the space formed by the fixed mold and the movable mold having the unevenness as described above. One end of the former molded body remaining in the section is melted by the molten resin for the next molded body, and abutted and joined to the one end of the next molded body by heat fusion. By repeating this, it is possible to form a long product in which a thin plate-shaped molded product having irregularities is abutted and joined at the ends. Therefore, the joined portion is firmly joined by heat fusion, and a long sheet material that is not separated or cracked from the joined portion can be formed.

Further, since the molding is performed by injection molding, the surface shape and the like can be freely designed, and it is possible to easily form an uneven surface or a projection on the surface.

Further, since the sheet material is made of a soft synthetic resin, it can be freely bent or rolled, and as a result, the sheet material can be easily handled and stored.

When the blind sheet material is formed by such a method, a long blind sheet material having a strong joint is formed by injection molding. Can be easily formed by, and further, since such a blind sheet material has an elongated shape,
Only by applying one sheet of material, it is possible to apply the sheet material for the blind for several meters at a time.

[0011]

EXAMPLES Examples of the present invention will be described below. First, the structure of the blind sheet material of the present invention will be described.
In FIGS. 1 and 2, reference numeral 1 denotes a plurality of sheet-shaped molded bodies 2.
Is a sheet material for a blind person made of a thermoplastic elastomer that is formed in a long shape by heat-melt-bonding the ends of the sheet material. A plurality of dot-shaped protrusions 3 are formed on the surface of the sheet material 1 for a blind person. Has been done.

Next, a case of manufacturing such a blind sheet material 1 will be described. In FIG. 3, 4 is an injection molding machine including a fixed mold 5 and a movable mold 6. An uneven surface is formed on the inner surface of the fixed mold 5, and an injection hole 11 is formed therein. An air suction hole 10 is formed in the movable mold 6, and is formed so that air can be sucked from the air suction hole 10. Reference numeral 7 denotes a space portion formed inside both molds when the movable mold 6 is moved to the fixed mold 5 side and closed. Reference numeral 8 is a moving means for adsorbing the formed compact and moving it upward.

In manufacturing the sheet material 1 for the blind by the injection molding machine 4 having the above-mentioned structure, first, as shown in FIG. The thin plate-shaped molded body 2a having the projections 3 on the surface is molded by being injected into the space 7 from the injection hole 11.

After that, the movable mold 6 is moved to release the molded body 2a from the fixed mold 5, and the moving means 8 sucks the molded body 2a and moves it upward. At this time, as shown in FIG. 5, the rear end of the molded body 2a is moved to a position where it slightly remains in the space 7.

When the molded body 2a is moved to this position, air is sucked from the air suction hole 10 formed in the movable mold 6, and the rear end portion of the molded body 2a left in the space 7 is held. Are adsorbed and fixed to the fixed mold 5.

In such a state, the movable mold 6 is again moved to the fixed mold 5 side to form the space 7, and the space 7 is heated from the injection hole 11 of the fixed mold 5 as shown in FIG. The melted elastomer is injected into the mold. At this time, since the rear end of the molded body 2a previously molded remains in the mold, the end surface of the rear end is melted by the heat of the injected elastomer, and the molded body 2b to be molded next is melted. Both molded bodies integrated with the front end 2
The a and 2b are joined. In addition, the joint surface 9 of the two compacts 2a, 2b is joined by abutting the end faces of the two compacts 2a, 2b in the direction orthogonal to the moving direction of the compact 2 so that they are in a good joint state. To be joined.

By repeating this operation, a number of thin plate-shaped moldings 2 having projections 3 on the surface are joined to form a long sheet, thereby forming a long sheet material 1 for the blind. It is.

Next, a case where such a blind sheet material 1 is applied will be described. First, as shown in FIG. 7, a groove 14 is formed at a predetermined position on the platform or the like where the blind sheet material 1 is to be constructed. The blind person's sheet material 1 is fitted into the groove 14 for construction, but since the blind person's sheet material 1 has a long shape, as in the conventional case, a short sheet material is predetermined. It is not necessary to fit into the groove 14 up to the length of, and it is possible to construct it in a length of several meters simply by constructing a single sheet for the blind in a roll shape as shown in FIG. is there.

Although the sheet material 1 for the blind has been described as an example in the above embodiment, the sheet material of the present invention is not limited to this, and can be applied to other floor materials and the like.

Further, in the above-mentioned embodiment, the blind sheet material 1 is formed so as to recognize the position where the plurality of dot-shaped projections 3 are formed on the surface of the blind sheet material 1. The sheet material for the blind is not limited to the dot shape, and for example, as shown in FIG. 8, it is possible to form a sheet material for a blind person having a rod-shaped projection on the surface. The point is that the uneven surface for guiding or the like may be formed on the surface of the sheet material.

Furthermore, in the above-mentioned embodiment, the olefin elastomer is used as the material of the sheet material, but other styrene elastomer may be used, and the soft synthetic resin having thermoplasticity is not limited thereto. For example, vinyl chloride or the like may be used.

Further, in the above embodiment, the air suction hole 10 is provided, and the rear end of the molded body 2a previously molded is fixed to the mold by performing air suction, but this air suction is performed. That is not necessarily a condition. However, when the rear end of the molded body 2a is fixed to the mold in this way and then the mold is closed again, the molded body 2a is joined to the molded body 2b to be formed next in a distorted state. In particular, even in the case of the molded body 2a made of a soft elastomer as in the above embodiment, the effect that the molded body 2a can be easily fixed at a correct position can be obtained.

[0023]

As described above, according to the present invention, since each sheet material made of thermoplastic soft synthetic resin is injection-molded, the ends are joined by hot-melt joining to form a long product.
It is possible to easily form a sheet material such as a sheet material for a blind person or a long floor material in which each joint portion is strong.

Further, since the sheet material is formed by injection molding, the surface shape and the like can be freely designed, and a long sheet material such as a blind sheet material having an uneven surface or a projection on the surface can be easily formed. Can be formed.

When a long sheet material for a blind person is formed by such a method, a single sheet material for a blind person may be applied to make a length of several meters at a time. Since it is possible to construct, it is not necessary to construct many short sheet materials one by one unlike the conventional blind sheet material,
The effect is that the construction work can be done easily and in a short time.

Further, since it is a long floor material such as a sheet material for blinds made of a thermoplastic soft synthetic resin, it can be easily made into a roll shape and can be rolled into a construction site when it is carried in or moved. As a result, it is possible to carry the equipment as it is, and it is possible to obtain an effect that the handling, loading, and unloading operations can be performed easily and in a short time, as compared with the conventional floor material such as a sheet material for the blind.

Further, since the joint surfaces of the respective molded products are melt-bonded by bringing the end faces orthogonal to the moving direction of the molded products into contact with each other, they can be bonded in a better bonding state.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of a sheet material for the blind of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a front view showing an injection molding machine for forming the sheet material of the present invention.

FIG. 4 is a cross-sectional view showing a state where the sheet material is molded.

FIG. 5 is a cross-sectional view showing a state in which the sheet material is moved outside the mold.

FIG. 6 is a cross-sectional view showing a state in which two sheet materials are joined.

FIG. 7 is a cross-sectional view showing a state in which a blind sheet material is applied.

FIG. 8 is a plan view showing a sheet material for a blind person according to another embodiment.

FIG. 9 is a cross-sectional view showing a state in which a conventional blind sheet material is applied.

[Explanation of symbols]

1 ... Sheet material for blind people 2a ... Molded body formed previously 2b ... Molded body formed next 3 ... Projection 5 ... Fixed mold 6 ... Movable mold

Claims (8)

[Claims] 1. A molded product (2a) having a surface with irregularities is molded by injection molding of a thermoplastic soft synthetic resin, and the molded product is obtained.
By molding the next compact (2b) while leaving one end of (2a) on one side of the space (7) in the mold, the former compact (2a) and the latter compact ( A long floor characterized by producing a sheet material such as a long floor material having unevenness on the surface by abutting and joining 2b) by heat fusion, and repeating this process to connect a plurality of molded bodies in series. For manufacturing sheet materials such as wood. 2. The long floor material is a sheet material for a blind person (1) having an uneven surface formed on the surface thereof.
A method for producing a sheet material such as the long floor material described. 3. The method for producing a sheet material such as a long floor material according to claim 1, wherein the thermoplastic soft synthetic resin is a thermoplastic elastomer. 4. The front surface of the molded body (2a) and the rear surface of the molded body (2b) are abutted and bonded to each other by heat fusion at their end faces orthogonal to the moving direction of the molded body. A method for manufacturing a sheet material such as a long floor material according to any one of claims 1 to 3. 5. A long length formed by abutting and joining two or more moldings (2) made of thermoplastic soft synthetic resin having an uneven pattern on the surface by heat fusion. Shakufoku. 6. The long floor material according to claim 5, wherein the long floor material is a sheet material for the blind (1). 7. The long floor material according to claim 5, wherein the thermoplastic soft synthetic resin is a thermoplastic elastomer. 8. The front surface of the molded body (2a) and the rear surface of the molded body (2b) are joined together by heat fusion at the end faces orthogonal to the moving direction of the molded body. The long floor material according to any one of claims 5 to 7.