JP2001199658A - A mat attached to the inner wall of the elevator box - Google Patents

Abstract

(57) [Problem] To provide a mat that can be stuck to an inner wall of an elevating box body without selecting any material for the inner wall and performing special treatment on the inner wall. SOLUTION: This mat is attached to an inner wall of an elevator box body of an elevator, and has a mat body, and an adhesive layer formed on a back surface of the mat body and having an adhesive force and detachable from the inner wall. Then, mat.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mat attached to the inner wall of an elevator box (hereinafter referred to as "elevator box"), and more particularly, to a mat of any material. The present invention relates to a mat which can be stuck without special treatment on the inner wall.

[0002]

2. Description of the Related Art Elevators are often used in high-rise buildings and the like.
These luggage and people are transferred vertically. A mat for protection is attached to the inner wall of the lifting box by attaching a protection mat or the like in order to prevent damage caused by collision of luggage or people accommodated in the lifting box. ing.
The side wall of the inner wall has a substantially vertical surface, and it was necessary to take a method for attaching a mat to the side wall. For example, a material whose inner wall is attracted to a magnet (for example,
If it is formed of steel, a method of attaching a magnet to the back surface of the mat and attaching the mat to the inner wall by the attraction force of the magnet to the inner wall (hereinafter, referred to as "magnet method"), A method of forming or attaching a hook to the upper portion of the inner wall and penetrating the hook into a hole formed in the mat (hereinafter, referred to as a "hook method") has been used.

[0003]

However, the magnet method has a problem that it cannot be used unless the inner wall is made of a material that is attracted to the magnet. In particular, recently, the inner wall is formed of timber for the purpose of giving a sense of quality or the like, or the inner wall is formed of a resin material which is easily colored or molded. It has become increasingly restricted. In the hook method, it is necessary to form or attach a hook to the inner wall, so that there is a problem that the cost of the lifting box is increased.

Accordingly, an object of the present invention is to provide a mat which can be stuck to an inner wall of an elevating box body without selecting any material for the inner wall and performing special treatment on the inner wall.

[0005]

The mat according to the present invention (hereinafter referred to as "mat").
It is called "book mat". ) Is a mat stuck to the inner wall of the elevator box body of the elevator, comprising a mat body, and an adhesive layer formed on the back surface of the mat body and having an adhesive force, which is detachable from the inner wall. It's a mat. For this reason, when the present mat is pressed against the inner wall, the sticking layer adheres to the inner wall, whereby the mat is stuck to the inner wall.
That is, the present mat can be stuck to the inner wall of the lifting box body without selecting any material for the inner wall and performing any special treatment on the inner wall. In addition, since the sticking layer is detachable from the inner wall of the lifting box, the mat can be freely replaced, or the mat can be freely stuck to the inner wall when necessary and peeled off when unnecessary. The term "adhesive layer detachable from the inner wall having an adhesive force" as used herein means that the mat is pressed against the inner wall so that the adhesive layer adheres to the inner wall and is adhered to the inner wall. The adhesive layer adheres to the inner wall, and after the adhesive layer adheres to the inner wall, the adhesive layer can be peeled off from the inner wall at least after a lapse of a predetermined period, and two or more times if the inner wall is a clean surface. Attachment / removal (that is, first, a sticking layer is brought into close contact with the inner wall, and the mat is stuck to the inner wall. Then, the mat is peeled off from the inner wall, and the peeled sticking layer of the mat is again put on the inner wall. To adhere the mat to the inner wall), and the adhesive layer does not include a magnet. Here, the sticking period in which the sticking layer is adhered to the inner wall by the present mat being pressed against the inner wall and the present mat is stuck to the inner wall may be determined according to the intended use of the present mat. When protecting the inner wall of the elevating box when temporarily transporting large luggage by elevator, it may be several tens to several hours to one day, but when protecting the inner wall of the elevating box for a long time. If so, it is one month to several years.

[0006] The mat is attached to the inner wall of an elevating box for accommodating persons and goods transferred by an elevator, and it does not matter which part of the inner wall is attached. , In many cases, to protect the side wall (the surface of which forms a substantially vertical plane).

[0007] The mat body may be of any type suitable for constituting the surface of the mat, and may be a carpeted cloth, a cloth (preferably thick), or a rubber-like sheet with flocks. Objects and the like can be exemplified. In particular, a carpeted planted with a hair is preferable because it can sufficiently protect the inner wall of the elevating box body from collision with another object and also can sufficiently protect the other object. In addition, as a carpet-like thing planted with hair, for example,
Examples include, but are not limited to, hair in which a hair is planted in a pile on a base material, and hair in which the U-turn portion of the hair is planted in a pile is cut.

[0008] The adhesive layer may be of any type as long as it is formed on the back surface of the mat body and can be attached to and detached from the inner wall having adhesive force. For example, a film formed by drying rubber latex may be used. Examples can be given. In particular, a film formed by drying a liquid resin containing an acrylic copolymer emulsion as a main component has a sufficient adhesive force to various inner walls, and an adhesive force even when peeling and sticking to the inner wall are repeated. This is preferable because the decrease in the size is small (the number of detachable times is large). When such an acrylic copolymer emulsion is used, a liquid resin mainly composed of the acrylic copolymer emulsion may be applied to the mat body and then dried to form a film.

The adhesive layer may have a predetermined impact absorbing property. The term "shock absorption" as used herein means that when an object collides with the inner wall of the elevating box to which the adhesive layer is attached, the object is defined by a speed change of the object in a direction perpendicular to the colliding inner wall. Is what is done. Specifically, a spherical object (mass 1) formed of steel (iron)
0g) collides with the inner wall (where the sticking layer is stuck and in a stationary state), the velocity component of the object perpendicular to the colliding inner wall is V0 (the direction approaching the inner wall). Is assumed to be positive), and the velocity component of the object perpendicular to the inner wall after the collision is -V1 (a negative sign "-" is attached because the direction approaching the inner wall is positive). ,
Here, the shock absorption S is defined as S = 1 − (− V1 / V0). (S ranges from 0 to 1, and a value closer to 1 is superior in shock absorption, and a value closer to 0 is impact resistance. Poor absorbency.) The predetermined shock absorbing property S of the adhesive layer
Is preferably larger (closer to 1), and may be appropriately determined according to the conditions of use of the mat (for example, the material of the object that collides or the kinetic energy of a component perpendicular to the inner wall), and the like. Although not particularly limited, usually,
It is preferably at least 0.2, more preferably at least 0.3, and most preferably at least 0.4. If the adhesive layer has such a shock absorbing property, the impact when another object collides with the present mat attached to the inner wall can be absorbed by the adhesive layer together with the mat body, so that the inner wall can be absorbed. Can be effectively prevented. In addition, if the adhesive layer absorbs the impact sufficiently, the mat body does not necessarily have to have a high shock absorbing property, so that the choice of the mat body is expanded (especially, the mat body is housed in the elevating box body). It is preferable to select a good-looking thing because it is observed by a person who has done it, but it is possible to select a better-looking thing by expanding the scope of selection.) Then, by adhering the adhesive layer having the shock absorbing property to the inner wall, it is possible to prevent the inner wall from resonating due to vibration that may be generated by elevating the elevating box body. In addition, in order to effectively absorb the impact when another object collides with the inner wall and to prevent a resonance phenomenon due to vibration, the adhesive layer preferably has a certain thickness, and is particularly limited. However, for example, it is preferably 0.3 mm or more, more preferably 0.4 mm or more, and most preferably 0.5 mm or more. However, if the thickness is too large, the weight will increase too much. Therefore, the thickness is preferably 5 mm or less, more preferably 4 mm or less, and most preferably 3 mm or less.

[0010] A magnet may be attached to a part of the back surface of the mat (referred to as a surface adhered to the inner wall of the elevating box). By doing so, when the inner wall of the elevating box is formed of a material (for example, steel) which is attracted to the magnet, in addition to the adhesive force of the adhesive layer, the mat can be attracted by the attracting force of the magnet. Since it is attached to the inner wall,
It is possible to securely and firmly attach the present mat to the inner wall. Also, the edges and corners of the mat (for example, if the mat has a square shape, the vicinity of the sides of the square becomes the edge, and the vicinity of the four corners of the square becomes the corner) Since only the adhesive force of the adhesive layer is relatively easy to separate from the inner wall, such unexpected separation can be prevented by attaching a magnet to these edges and corners. The magnet may be attached to the back surface of the mat by any method. For example, the magnet may be sewn, adhered, fused, fixed with a stapler, or embedded in the mat body or the adhesive layer. The sticking surface of the sticking layer and the attracting surface of the magnet may substantially belong to the same plane. Surface of the inner wall of the lifting box (the surface to which the mat is attached)
Is usually flat, and in order to stick the back surface of the present mat on the inner wall surface, it is preferable that the back surface of the present mat is flat because the back surface of the present mat is in good contact with the inner wall surface. . For this reason, if the attaching surface of the attaching layer attached to the inner wall surface of the elevating box body and the attracting surface of the magnet are made to substantially belong to the same plane, both of the attaching surface and the attracting surface will be the same. The mat can be brought into close contact with the inner wall surface, and the adhesion of the mat to the inner wall can be made more reliable and strong.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. However, the present invention is not limited by these.

FIG. 1 is a rear view of the present mat 11 according to one embodiment, FIG. 2 is a sectional view taken along line XX of FIG. 1, and FIG.
5 is a sectional view taken along the line YY in FIG. The mat 11 will be described with reference to FIGS. The mat 11 is a mat attached to the inner wall of the elevator box body of the elevator, and includes a mat body 17, a sticking layer 19 formed on the back surface of the mat body 17 and having an adhesive force and detachable from the inner wall, Having. A plate-like magnet 51 is attached to a part of the back surface of the mat 11 (the surface on which the adhesive layer 19 is formed and adhered to the inner wall of the elevating box). Here, the attachment surface 19a of the attachment layer 19 and the attraction surface 51a of the magnet 51 substantially belong to the same plane (particularly, see FIG. 3).

The mat body 17 is in the form of a flocked carpet and has a base material 13 for flocking and bristles 15 flocked on the base material 13. The base material 13 is formed by knitting a string made of a synthetic resin such as polyethylene or a natural fiber such as hemp. The bristles 15 are planted on the base material 13 in a pile shape or in a state where a loop portion of the pile is cut. Note that the mat body 17 is not limited to this. For example, the base material 13 is not indispensable if the flocking can be directly implanted on the adhesive layer 19 described below.
Further, it goes without saying that a thick cloth, a rubber-like sheet, or the like may be used as described above.

The adhesive layer 19 is formed by applying a liquid resin containing an acrylic copolymer emulsion as a main component on the back surface of the mat body 17 and then drying it. The liquid resin used here was EFX Corporation product name FX8804
K (acrylic adsorption foam). FX8804K, a product name of E-Tech Co., Ltd., uses an acrylate copolymer as a base emulsion, and 100 parts by weight of the acrylate copolymer and a foam stabilizer 4.0.
Parts by weight, 1.0 part by weight of a water repellent, 30 parts by weight of a filler (aluminum hydroxide), 0.2 parts by weight of a tack inhibitor, and 0.5 parts by weight of a sodium polyacrylate thickener When,
(All parts by weight are on a dry basis). This liquid resin has a total solid content of 60.0% and a viscosity of 14,000 mPa · s (BM type No. 3-6 rpm
m), pH 9.5 and specific gravity 1.0.

The liquid resin used in the present invention is not limited to the above-mentioned resin, and may be appropriately selected and used. The preparation of the liquid resin is carried out according to the acrylic copolymer emulsion to be used. The raw materials and the mixing amount thereof may be appropriately changed. Usually, an acrylic copolymer emulsion,
Foam stabilizer, filler, and if necessary, other additives,
May be mixed to prepare a liquid resin. The mixing ratio of the foam stabilizer may be appropriately determined according to the type of the acrylic copolymer emulsion used, the type of the foam stabilizer to be used, and the like. Usually, if the mixing ratio is too large, the cost increases,
From the problem that the foaming work becomes difficult due to weak adhesion with the resin, and conversely, if the mixing ratio is too small, a sufficient effect as a foam stabilizer cannot be obtained, which causes a problem.
What is necessary is just to determine so that these two conditions may be satisfied. The mixing ratio of the filler may be appropriately determined depending on the type of the acrylic copolymer emulsion to be used or the type of the filler to be used,
Usually, if the mixing ratio is too small, there is a problem that the cost of forming the adhesive layer 19 becomes high. Conversely, if the mixing ratio is too large, the adhesive force of the adhesive layer 19 decreases and the viscosity increases. Since the problem that the processing workability is reduced occurs, it is only necessary to determine that both of these conditions are satisfied.

The glass transition point of the acrylic copolymer emulsion may be appropriately determined according to the conditions of use of the mat 11 and the like. Usually, if the glass transition point is too low, it becomes difficult to maintain the shape of the adhesive layer 19. A problem occurs. On the other hand, if the temperature is too high, a problem occurs such that the adhesive force of the adhesive layer 19 cannot be sufficiently obtained. In addition, as the other additives, for example,
Examples thereof include a cross-linking agent such as melamine, ethyleneimine, and epoxy for increasing the cross-linking density, a foaming agent, and a gelling agent.

The filler is not limited to those described above, and may be appropriately selected and used according to the type of the acrylic copolymer emulsion to be used. For example, calcium carbonate or the like may be used. Further, a foam stabilizer may be appropriately selected and used according to the type of the acrylic copolymer emulsion to be used.

FIG. 4 is a schematic view showing a manufacturing process of the present mat 11. The manufacturing process of the mat 11 will be described with reference to FIG. From the tank 31 in which the liquid resin prepared as described above is charged, the liquid resin is charged into the mixer 33 at a predetermined flow rate by a pump (not shown). The liquid resin is sufficiently mixed in the mixer 33 and then charged into the intermediate tank 35. The liquid resin charged in the intermediate tank 35 is charged into the foaming device 37 at a predetermined flow rate by a pump (not shown). In the foaming device 37, the gelling agent from the gelling agent tank 39 is added at a predetermined ratio to the liquid resin from the intermediate tank 35, and air is blown into the liquid resin to which the gelling agent has been added by the air pump 41. Let it foam. Thereafter, the foamed liquid resin is transferred to the discharge nozzle 43, and discharged from the discharge nozzle 43 to the back surface of the mat body 17 in the moving state and applied.
The amount of the liquid resin that is discharged and applied to the back surface of the mat body 17 is not particularly limited as long as it is appropriately determined according to the use condition of the mat 11 and the like. 500 to 1 per unit area on the back
It may be about 000 g / m ² (back unit area).
The mat body 17 is moved at a predetermined speed in a direction indicated by an arrow A in FIG. 2 by a roller conveyor 45 with its back surface facing upward. Above the roller conveyor 45, a discharge nozzle 43, a pre-drying heater 47, and a post-drying heater 49 are arranged in this order from the upstream side. The pre-drying heater 47 is
The liquid resin applied to the mat body 17 is coated with 150 to 180
Heat at about 1 ° C for about 1 minute to semi-dry. Then, the post-drying heater 49 heats and dries the liquid resin applied to the mat body 17 at about 160 ° C. for about 15 minutes. Finally, the plate-like magnet 51 is embedded at a predetermined position (here, a corner of the mat) of the sticking layer 19 and sewn to the mat body 17 and the sticking layer 19 with a thread (not shown), whereby the mat 11 is completed. You. The method for embedding the magnet 51 in the adhesive layer 19 is as follows.
Is formed by forming a concave portion corresponding to the shape (formed by excavating the adhesive layer 19), and then arranging the concave portion to accommodate the magnet 51. However, the present invention is not limited to this. Instead, various methods may be used.

The sticking layer 19 of the mat 11 thus manufactured had a thickness of 2 mm and had a sufficient shock absorbing property. Specifically, steel material SS4
The spherical body having a weight of 10 g formed by using the steel material SS4
1 was dropped onto an adhesive layer 19 attached to a 20 kg plate-shaped member formed such that the main surface was horizontal, and when the drop height was h0 = 10 cm, the rebound height h1 =
It was 2.5 cm. Therefore, if air resistance and the like are ignored, (−V1 / V0) = (h1 / h0) ^0.5 = 0.5
Therefore, shock absorption S = 1 − (− V1 / V0) = 0.5
Met. Further, the adhesive layer 19 of the mat 11 had a sufficient adhesive force. FIG. 5 is a partially cutaway perspective view showing a state where the present mat 11 is attached to an inner wall of an elevator box 81 of an elevator. Here, the inner wall of the elevating box 81 is attached to a side wall 81a (the surface of which is substantially vertical and formed of a metal (steel) decorative plate). The mat 11 is attached to the side wall 81a of the mat 1
1, the adhesive layer 19 was easily pressed against the side wall 81a by a human hand to make the adhesive layer 19 adhere to the side wall 81a easily. At this time, the 4
By attaching the magnet 51 attached to the corner of the mat to the side wall 81a, the attachment of the mat 11 could be made more reliable and strong. Then, the adhesive layer 19 is attached to the side wall 81a.
The mat 11 is attached to the side wall 81a even after 6 months.
There was no appearance of peeling from the surface. The adhesive layer 19 is adhered to the side wall 81a, and after 6 months, the outer edge of the mat 11 is gripped by a human hand and easily applied to the side wall 81a so as to be separated in a substantially vertical direction.
Can be peeled off from the side wall 81a, and the peeled adhesive layer 19 is not particularly changed compared to before being attached to the side wall 81a.
No particular change was observed in a as compared to before the adhesive layer 19 was attached. When the sticking layer 19 of the separated mat 11 was again brought into close contact with the side wall 81a by hand, the mat 11 could be stuck to the side wall 81a. The same result was obtained for a mat having no magnet attached to the back surface of the mat. These results were almost the same when the mat 11 was attached to the side wall of the elevating box made of timber. This mat 11
Since the mat body 17 and the adhesive layer 19 have sufficient shock absorbing properties in the thickness direction, the inner wall of the elevator ascending / descending box body to which the present mat 11 is adhered may be subjected to collision or friction from other objects. Damage can be prevented. In addition,
Since the mat 11 is attached to the inner wall by the adhesive force of the adhesive layer 19 to the inner wall, the inner wall of the elevating box can be selected regardless of the material of the inner wall without performing any special treatment on the inner wall. Can be stuck on. If the inner wall is formed of a material (for example, a steel material) that is attracted by a magnet, the magnets 51 attached to the four corners on the back surface of the mat 11 are attracted to the inner wall, and thus the mat 11 Can be further securely and firmly attached.

[Brief description of the drawings]

FIG. 1 is a back view of a mat according to an embodiment.

FIG. 2 is a sectional view taken along line XX of FIG.

FIG. 3 is a sectional view taken along line YY of FIG. 1;

FIG. 4 is a schematic view showing a manufacturing process of the present mat.

FIG. 5 is a partially cutaway perspective view showing a state where the mat is attached to a side wall of an elevator box body of an elevator.

[Explanation of symbols]

 Reference Signs List 11 mat 13 base material 15 wool 17 mat body 19 sticking layer 19a sticking surface 31 tank 33 mixer 35 intermediate tank 37 foaming device 39 gelling agent tank 41 air pump 43 discharge nozzle 45 roller conveyor 47 pre-drying heater 49 after Drying heater 51 Magnet 51a Adsorption surface 81 Elevating box 81a Side wall

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Katsumi Kusachi, Katsumi Kusagi, Okayama Pref.

Claims (5)

[Claims] 1. A mat attached to an inner wall of an elevator box body of an elevator, comprising: a mat body; and an adhesive layer formed on a back surface of the mat body and having an adhesive force and detachable from the inner wall. Have a mat. 2. The mat according to claim 1, wherein said adhesive layer has a predetermined shock absorbing property. 3. The mat according to claim 1, wherein the sticking layer is formed by applying a liquid resin containing an acrylic copolymer emulsion as a main component to the mat body and then drying it. . 4. The mat according to claim 1, wherein a magnet is attached to a part of the back surface of the mat. 5. The mat according to claim 4, wherein the sticking surface of the sticking layer and the attracting surface of the magnet substantially belong to the same plane.