JP3223164U - Entrance door - Google Patents

Abstract

[PROBLEMS] To open a door made by covering a flexible open-cell plastic with a stretchable film having a water-stopping property, and having the rigidity to withstand repeated bending and the flexibility to ease human contact. It has water-stopping and wrinkle patterns on the surface. A door 1 includes a core metal 3 surrounded by a wing plate 2 formed of a cushioning foamed plastic 4, and the wing plate 2 is rigid so as not to be deformed even by repeated bending action. Formed with an open-cell foamed plastic 4 having softness that can relieve impact caused by contact with humans, and the surface of the foamed plastic 4 is subjected to a texture pattern 5 by embossing and has a thickness of 100 μm or less. And covered with a plastic film 4 having elasticity. [Selection] Figure 1

Description

  [Technical Field] The present invention relates to a door for a mouth which is formed by coating an open-cell plastic having flexibility with a stretchable film having water-stopping property.

Conventionally, a door that can be freely opened and closed arranged at a gate such as a ticket gate is required to have a certain strength so as to have a closing effect, and a foamable plastic is used so as to have the strength and light weight. In general, a closed-cell foamed plastic having hardness is used (see Patent Document 1).
However, since this hard foamed plastic may cause pain or the like when it comes into contact with a person, there is a demand for reducing the impact by making it softer. Therefore, in order to make this foamable plastic soft, it is considered effective to use open cells that have air fluidity and have an effect of releasing the pressure against compression into bubbles.
However, this open-cell plastic has a tendency to be inferior in water-stopping property because pores communicate with each other.
Therefore, if this is left as it is, if moisture adheres to the foamed plastic, it will enter into the inside through continuous pores, and once the moisture enters, it may remain inside and may cause mold and the like for a long time. is there.
This is at the entrance door where people come into contact, and there is a danger of leaving a hygiene problem, which is not preferable.
In addition, although patent document 1 describes the structure of the doppler which covered the circumference | surroundings of the metal core with the foamed polyolefin, the foamed polyolefin is not an open cell thing, and does not solve the said problem.

Japanese Patent No. 3385261

  The present invention is intended to solve the above-mentioned problems, and uses an open-cell foamed plastic with excellent flexibility for the entrance door. It is intended to solve the problems such as water-stopping properties and to provide a door with anti-slip properties and design.

  The door of the present invention is surrounded by a wing plate made of cushioning foam plastic around the core, and the wing plate does not deform even when subjected to repeated bending action and shock caused by human contact. It is made of open-cell foamed plastic with softness that can be relaxed, and the surface of the foamed plastic is covered with a plastic film that has a water-stopping property and stretchability of 100 μm or less that has been subjected to a texture pattern by embossing. It is characterized by that.

  The entrance door described in claim 2 is characterized in that the open-cell foamed plastic 4 has a hardness of 20 to 90 ° according to JIS K7312.

  The entrance door according to claim 3 is characterized in that the plastic film is a urethane film in which polyester or polyol is bonded to diphenylmethane diisocyanate.

  The entrance door according to claim 4 is characterized in that an intermediate layer having adhesiveness is interposed between the open-cell foamed plastic and the plastic film.

  For example, a door that is provided at a ticket gate may come into contact with a person trying to slip through the opening / closing movement. Then, at that time, the wing plate is bent between the core metal and the soft foamed plastic is strongly deformed, and if this is repeated, the fleshy part may be eventually damaged. At this time, in the present invention door, by making the foamed plastic hard within a certain range, the bending deformation can be suppressed within the certain range and durability can be given.

  The function of the entrance door has a role to once block the passage of a person, so if it hits a person's body before opening, it may cause a strong impact and cause discomfort such as pain. However, in the present invention, since the flap portion is a foamed plastic having open-cell flexibility, it is rich in deformation force and can reduce the impact such as pain.

  Open-cell foamed plastics have a tendency to lack water-stopping properties. However, in the present invention, the flaps of the present invention in which the flap part is covered with a plastic film that has a strong binding property due to polymer bonds exhibit high water-stopping properties. And does not allow water and air to enter. Therefore, it is possible to prevent the danger of moisture permeating through the continuous pores, to suppress the generation of microorganisms such as soot, and to maintain a hygienic state even after long-term use.

  In addition, when the slipper door is required to have anti-slip properties, the plastic film has a thickness of 100 μm or less, so that it can be embossed with a mold with a groove, leather pattern, satin pattern, grain pattern A wrinkle pattern such as can be formed. The door is provided in a place that is easily visible to the public, such as a ticket gate, and can exhibit not only mere passage blocking but also design, and is visually preferable.

  The entrance door according to claim 2 is configured such that the hardness of the open-cell foamed plastic 4 is 20 to 90 ° according to JISK7312, so that it can withstand the bending deformation and can be flexible to avoid discomfort at the time of contact. It can be combined with sex.

  The entrance door according to claim 3 can exhibit high water stoppage and excellent stretchability due to isocyanate group bonding by forming a plastic film as a urethane film in which polyester or polyol is bonded to diphenylmethane diisocyanate.

  The entrance door according to claim 4 is provided with an intermediate layer between the open-cell foamed plastic and the plastic film, thereby enhancing the closeness between the two and providing weather resistance, color and the like. Can do.

It is typical sectional drawing which shows an example of this invention entrance door. It is a partial expanded sectional view of the state where the present invention entrance door is bent by contact with a user. It is the elements on larger scale of the wrinkle pattern given to the surface of this invention entrance door.

A door 1 of the present invention is provided at a ticket gate. As shown in FIG. 1, a wing plate 2 surrounded by cushioning foamed plastic is disposed around a cored bar 3.
The core 3 is connected to a rotating shaft attached to a ticket gate at its end, and opens and closes around the shaft, and is made of a metal such as an iron plate. The core metal 3 does not necessarily occupy the whole, and a through hole may be formed by hollowing out the inside for weight reduction.
The vane plate 2 is formed of a foamed plastic 4 and has a substantially rectangular shape covering the periphery of the core metal 3.
Two wing plates 2 are arranged on the ticket gate in the left and right direction, and are configured to open and close back and forth as a person passes by the rotational movement of the core 3 connected to the rotating shaft.

The wing plate 2 as the cushioning material used in the present invention in the entrance door 1 is made hard so that it does not easily deteriorate even if repeated bending action is applied.
In other words, if the doorway is opened and closed at the ticket gate, it is inevitable that it will come into contact with people passing by, and the frequency will vary depending on the congestion status of the ticket gate, but it is extremely difficult during morning and evening rush hours It will be a lot of times.
At this time, as shown in FIG. 2, a vector in a direction perpendicular to the door plate acts on the wing plate 2 due to the force passed by a person, and a force is applied to bend the end of the cored bar 3.
Then, stress is generated inside the blade plate 2, and if the blade plate 2 is too soft, a bending action is applied around the base end of the core 3 and when this is repeated at a considerable frequency, it is torn, torn, Due to buckling or the like, a crack or the like may occur inside.
Therefore, the inventive blade 2 is made of a hard material that does not easily deform so as to withstand this bending action, and can withstand bending for a long time.
As an example of the foamed plastic 4 having the hardness, a material having a hardness of 20 ° or more according to JISK7312 can be exemplified.
In this range, the hardness is such that deterioration can be avoided against the load pressure and the occurrence of cracks and the like can be prevented.

On the other hand, it is assumed that the wing plate 2 has softness so as to relieve an impact caused by contact with a person and cause no discomfort such as pain.
As mentioned above, in the entrance door at the ticket gate, the risk of human contact with the wing plate 2 is unavoidable, and if it is too hard to ask for the blocking function as a door, There is a risk that the user may be complained of discomfort such as pain.
Therefore, in the present invention, the wing plate 2 is provided with a softness that can relieve an impact caused by contact with a person, but the flexibility is provided by a connected cellular foamed plastic 4 that does not depend on closed cells. .

Closed-cell foamed plastic has a certain limit in the amount of deformation when a load is applied because the bubbles are sealed, and it becomes rigid, whereas in open-cell foam, pressure is applied to some of the bubbles. Even when added, it becomes more flexible.
This is because, when pressure is applied by contact with a person, the internal air moves to the other through the communication hole, and the blade plate 2 is easily deformed by the movement of the air, and this deformation absorbs the impact. Because it works.
Due to this shock absorption, even if a person comes in contact, it will not feel pressure and avoid discomfort.
A plastic foam having elasticity having a hardness of 90 ° or less in accordance with JISK7312 is used as this flexibility.

  Examples of the plastic having a hardness that can withstand bending and a flexibility that can avoid discomfort at the time of contact include foamed plastic having a hardness of 20 to 90 ° according to JISK7312.

Now, when it is set as the connection cell property foamed plastic provided with the said softness | flexibility, it has the tendency which lacks water-stopping property.
That is, the closed-cell foam is filled with water-stopping because the space inside the bubble is sealed, whereas the open-celled foam is because the communication hole is continuous with the bubble, Moisture that has entered somewhere is more likely to enter the interior through the communication hole. And once moisture enters the inside, there is a risk of causing generation of microorganisms such as mold and bacteria for a long time.
This is not desirable even at the entrance door where people come into contact, leaving a hygiene problem.
Therefore, in the present invention, the surface of the wing plate 2 is covered with a plastic film 5 having water blocking properties and stretchability.
Specifically, it can be a urethane film in which polyester or polyol is bonded to diphenylmethane diisocyanate.
When the surface of the wing plate 2 is covered with the urethane film, the film has a high degree of polymerization and has a sealing property due to a strong bond of an isocyanate group, and exhibits a strong water-stopping property.
At the same time, since it has elasticity due to urethane bonding, even when the wing plate 2 is deformed, it has elasticity that can follow the deformation and does not lose its function as a cushioning material.

At this time, the water-stopping film tends to suppress the mobility of the air of the open cell due to its sealing property.
In other words, when pressure is applied to the foamed plastic 4 due to contact with a person, the air should move and be able to deform. However, when a film is placed on the outside, the airtightness confines the air and restricts movement. Will do.
However, as described above, the foamed plastic 4 having elasticity is recessed once in the part subjected to pressure, and then the air moves outward with pressure, and when it reaches the outermost side, it pushes the film. Become. Then, since the film is a plastic film having elasticity, it slightly deforms into an outward bulge and acts to prevent this with a certain strength.
While absorbing the impact which arose in the site | part which contacts by this, it will suppress a deformation | transformation more than fixed, and it has the function which maintains the softness | flexibility and formality as a doorway door.

Further, the entrance door 1 is required to have slip resistance and design.
That is, since the entrance door prevents a person from passing as a door function, it is not appropriate to make it easy to slip through as a mirror finish of the slippery. Non-slip effect due to constant friction is required.
In addition, not only the functionality but also the design is important because it is used where the ticket gate is visible.
In order to meet these two requirements, there are leather patterns, satin patterns, wood grain patterns, rock texture patterns, fabric patterns, and geometric patterns, for example, which have a textured pattern with a certain groove.
Therefore, in the present invention, as shown in FIG. 3, the film is a thin film having a thickness of 100 μm or less, and a groove pattern 6 is formed by embossing a groove in the mold to form a texture pattern 6.

The wrinkle processing is a process for displaying a wrinkle pattern 6 such as a leather pattern on the surface of the entrance door. In the present invention, a leather pattern or the like is formed on the surface of one or both of the upper and lower molds. The embossed pattern 6 is carved as a concave groove, and this is expressed by processing the plastic film 4 and the foamed plastic 4 exposed to the mold in which the concave groove is formed.
At this time, the plastic film 5 is a film body that is stretchable and has a thickness of 100 μm or less, can follow the recess of the groove, and can express the size and shape of the texture pattern 6.

According to the present invention as described above, an open-cell foamed plastic cushion material having a hardness that does not deform even when the periphery of the core metal is repeatedly bent and a softness that can relieve an impact caused by human contact. The entrance door formed in is obtained.
At this time, by covering the surface with a plastic film having water-stopping property and stretchability, high water-stopping property can be given to the open-cell foamed plastic.
At the same time, by setting the thickness of the plastic film to 100 μm or less, it is possible to follow the concave groove of the embossed pattern carved in the mold without difficulty due to the inherent elasticity and thinness of the film. It is possible to obtain a door with excellent anti-slip properties and design with a texture pattern such as a leather pattern.

DESCRIPTION OF SYMBOLS 1 Entrance door 2 Wing board 3 Core metal 3a Through-hole 4 Foamed plastic 5 Plastic film 6 Wrinkle pattern

Claims (4)

Surrounding the core 3 with a wing plate 2 formed of cushioning foamed plastic 4,
The wing plate 2 is formed of an open-cell foamed plastic 4 having a hardness that does not deform even when a repeated bending action is applied and a softness that can relieve an impact caused by human contact,
The surface of the foamed plastic 4 was covered with a plastic film 4 having a water-stopping property and a stretchability of 100 μm or less to which a texture pattern 5 by a texture processing was applied
A door 1 characterized by that.   2. A mouth door characterized in that the open-cell foamed plastic 4 according to claim 1 has a hardness of 20 to 90 degrees according to JIS K7312.   A door according to claim 1, wherein the plastic film according to claim 1 is a urethane film in which polyester or polyol is bonded to diphenylmethane diisocyanate.   An entrance door characterized in that an intermediate layer is interposed between the open-cell foamed plastic according to claim 1 and the plastic film.

Images