JP6103754B2 - Magnetic adsorption wall structure and construction method of magnetic adsorption wall - Google Patents

Description

  The present invention relates to a magnetic adsorption wall structure in which a magnetic layer magnetically attaches a magnetic part and a magnetic adsorption wall construction method while absorbing a shock and preventing injury even when a human body collides with a wall.

  Conventionally, as a paint that absorbs impact, a paint and a metal plate excellent in impact absorbing characteristics, characterized by comprising 100 parts by mass of binder solid content and 10 to 50 parts by mass of microcapsules containing water or an organic solvent, have been proposed. (Patent Document 1). Also, an impact-absorbing powder coating material characterized by containing hollow beads in the resin coating has been proposed (Patent Document 2).

JP 2004-315760 A JP-A-8-31370

  However, since the paint and metal plate having excellent shock absorption characteristics described in Patent Document 1 are intended to improve the shock absorption characteristics at the time of collision of a transport machine such as an automobile, the paint contains an organic solvent. It is a thin paint that is applied to high-strength steel sheets, and the foundation is not applied to the wall foundation of buildings with almost no deformation such as concrete and control panels. There is a problem that it does not absorb the shock and prevent injury.

  Although the shock-absorbing powder coating described in Patent Document 2 is a powder coating applied to a building, the purpose of shock absorption is to apply a stone, a branch, etc. or a bird's beak. In order to prevent some parts from being damaged and rainwater, etc., from entering the collision area to generate rust on the paint inner surface (the contact surface between the coating material and the object to be coated). When the body collides, there is a problem that it does not prevent injury by absorbing the impact.

  The problem to be solved by the present invention is that even if a human body, particularly an elderly person, hits the head of a building against the wall of the building, the impact is absorbed to prevent the occurrence of injuries, and the magnet part is attached to the wall. An object of the present invention is to provide a magnetic adsorption wall structure to be magnetically attached and a construction method of the magnetic adsorption wall.

The invention of claim 1, wherein the shock absorbing layer is formed over the existing wall base, a magnetic suction wall structure which a magnetic layer is formed by a magnetic coating on top of said shock absorbing layer is cured is applied Te,
The shock absorbing layer is made of a foamed PVC sheet ,
The thickness of the shock absorbing layer can be formed to an arbitrary thickness of 3 mm or more and 5 mm or less by applying a plurality of foamed PVC sheets.
A shock absorbing layer is formed by stacking a plurality of foamed PVC sheets, and is formed on a concrete sidewalk board as the base of a specimen with an arbitrary thickness of 3 mm to 5 mm, and a magnetic layer is formed on the shock absorbing layer magnetic attraction wall structure even when allowed to drop height 20 times than 1kg of the steel ball 1m that does not cause cracks in the concrete sidewalk plate, the thickness of the magnetic layer is characterized by a 0.2mm~0.6mm I will provide a.

According to a second aspect of the invention, the magnetic coating, and characterized in that the soft magnetic powder is dispersed in a synthetic resin binder, formed by dispersing soft magnetic powder 300 and 900 parts by weight to 100 parts by weight of synthetic resin binder The magnetic adsorption wall structure according to claim 1 is provided.

According to a third aspect of the invention, there in existing shock-absorbing layer is formed on the wall base, method of constructing the magnetic attraction wall forming the magnetic layer by a magnetic coating applied and cured on top of the impact absorbing layer Te,
The shock absorbing layer is made of a foamed PVC sheet ,
The thickness of the shock absorbing layer can be formed to an arbitrary thickness of 3 mm or more and 5 mm or less by applying a plurality of foamed PVC sheets.
A shock absorbing layer is formed by stacking a plurality of foamed PVC sheets, and is formed on a concrete sidewalk board as the base of a specimen with an arbitrary thickness of 3 mm to 5 mm, and a magnetic layer is formed on the shock absorbing layer magnetic attraction wall structure even when allowed to drop height 20 times than 1kg of the steel ball 1m that does not cause cracks in the concrete sidewalk plate, the thickness of the magnetic layer is characterized by a 0.2mm~0.6mm The construction method is provided.

According to a fourth aspect of the present invention , the magnetic coating material is characterized in that soft magnetic powder is dispersed in a synthetic resin binder, and 300 to 900 parts by weight of the soft magnetic powder is dispersed in 100 parts by weight of the synthetic resin binder. A method for constructing a magnetic adsorption wall according to claim 3 is provided.

  The magnetic adsorption wall structure according to claims 1 to 3 and the magnetic adsorption wall formed by the construction method of the magnetic adsorption wall according to claims 4 to 6 according to the present invention are formed on an existing wall base. Since the absorption layer is formed, even if a human body, particularly an elderly person hits the head or the like, the shock absorption layer has an effect of absorbing the shock and preventing injury.

  In addition, since the magnetic layer is formed on the shock absorbing layer, the magnetic layer can magnetize the magnet parts, and the magnet parts etc. can be magnetized on the wall for various displays. There is an effect that can.

It is a section state figure showing the magnetic adsorption wall structure concerning the present invention.

Next, the form for implementing the magnetic adsorption wall structure concerning this invention is demonstrated.
FIG. 1 is a sectional view of a magnetic adsorption wall structure 1 according to the present invention, and 2 is an impact absorption layer made of a foamed PVC sheet. The shock-absorbing layer 2 which is a foamed PVC sheet is adhered to a wall substrate 10 such as concrete, mortar, gypsum board, or a panel using an adhesive, and a soft magnetic powder is dispersed in a synthetic resin binder thereon. A magnetic layer 3 is formed by applying and curing a magnetic paint. The thickness of the impact absorbing sheet is preferably 3 mm or more and 5 mm or less. If the thickness is less than 3 mm, the impact absorbing effect is insufficient, and if it exceeds 5 mm, the cost becomes high.

  The magnetic paint is composed of 300 to 900 weights of soft magnetic powder such as iron powder, iron sand powder, and soft ferrite powder with respect to 100 parts by weight of a synthetic resin binder such as acrylic resin, urethane resin, acrylic urethane resin, polyester resin, and alkyd resin. A magnetic paint (trade name, manufactured by Europe BV (Netherlands)) is available as a commercially available magnetic paint. If the soft magnetic powder is less than 300 parts by weight, the magnetizing force of the magnet part is slightly weakened, and if it is more than 900 parts by weight, the coating workability as a magnetic paint becomes poor. The thickness of the magnetic layer after the magnetic coating is cured is preferably 0.2 mm to 0.6 mm, and if it is thinner than 0.2 mm, the magnetizing force of the magnetic component is insufficient. The surface smoothness is poor and the design is poor.

  As a commercial product of the foamed PVC sheet, there is Forex (trade name, manufactured by Acrysanday Co., Ltd.), and there are thicknesses of 1 mm, 2 mm, 3 mm and 5 mm. Foamed PVC sheet is lightweight (specific gravity 0.7) and has good workability, and other effects such as flame retardancy, soundproofing, heat retention, heat insulation, etc. By constructing, it can also be formed in any thickness.

  Hereinafter, the magnetic adsorption wall structure according to the present application will be described in detail with reference to Examples and Comparative Examples.

  Test specimens having magnetic adsorption wall structures of Examples 1 to 3 and Comparative Examples 1 and 2 were prepared according to the specifications shown in Table 1. The base of the test body was a commercially available concrete sidewalk board (300 × 300 × 60 mm), and the above-mentioned foamed PVC sheet Forex was used for the shock absorbing layer. For the shock absorbing layer thickness of 1 mm, 2 mm, 3 mm, and 5 mm, forex with the thickness is bonded with a commercially available epoxy resin adhesive, and in Example 2 where the shock absorbing layer thickness is 4 mm, 2 mm of forex is commercially available epoxy. It was laminated with a resin adhesive.

In order to ensure the adhesion of the magnetic paint, the surface of the foamed PVC sheet that is the shock absorbing layer is roughened with sandpaper # 180, the surface is cleaned with a vacuum cleaner, and then a commercially available magnetic paint magnet paint is used. Was applied and cured by 0.2 L / m ² , and this was repeated four times to form a magnetic layer. After applying the magnetic paint and curing at 23 ° C. for 7 days, the impact absorption, magnet adsorption and magnetic layer adhesion were evaluated.

[Evaluation items and methods]

(Shock absorption)
The test bodies of Examples 1 to 3 and Comparative Examples 1 and 2 are held horizontally, and a 1 kg steel ball is dropped from a height of 1 m, and this is repeated. When the number of drops was less than 10 and the concrete sidewalk board was cracked, it was evaluated as x, and when the fall was not more than 10 times and 20 times, the concrete sidewalk board was evaluated as o.

[Magnet adsorption]
Example 1 to Example 3 and Comparative Example 1 and Comparative Example 2 were held vertically and the magnetic attractive force was 65 gf / cm ² different from that of soft iron with multipolar magnetization (2.5 mm between poles). A magnet component having a weight of 70 gf formed by laminating an isotropic magnet sheet (3 cm × 3 cm) on a nonmagnetic material is magnetically attached to the surface of the test body. A case where the magnet part did not fall was evaluated as “good”, and a case where the magnetic part was dropped was evaluated as “x”.
[Adhesion of magnetic layer]
Example 1 to Example 3 and Comparative Example 1 and Comparative Example 2 were tested by inserting a blade of a commercially available cutter knife into the interface between the magnetic layer and the shock absorbing layer, and x indicating that the magnetic layer peeled off and not peeling Was rated as ○.

〔Comprehensive evaluation〕
All items were evaluated as ○, and other items were evaluated as ×.

〔Evaluation results〕
The evaluation results are shown in Table 2.
As shown in Table 2, the magnet parts were magnetically attached to all the test specimens, but the shock absorption of Comparative Examples 1 and 2 where the thickness of the shock absorbing layer was 1 mm and 2 mm was evaluated as x, and the overall evaluation was also X.

DESCRIPTION OF SYMBOLS 1 Magnetic adsorption wall structure 2 Shock absorption layer 3 Magnetic layer 10 Base 20 Blackboard

Claims (4)

A magnetic absorption wall structure in which a shock absorbing layer is formed on an existing wall base , and a magnetic layer is formed by applying and curing a magnetic coating on the shock absorbing layer ,
The shock absorbing layer is made of a foamed PVC sheet ,
The thickness of the shock absorbing layer can be formed to an arbitrary thickness of 3 mm or more and 5 mm or less by applying a plurality of foamed PVC sheets.
A shock absorbing layer is formed by stacking a plurality of foamed PVC sheets, and is formed on a concrete sidewalk board as the base of a specimen with an arbitrary thickness of 3 mm to 5 mm, and a magnetic layer is formed on the shock absorbing layer magnetic attraction wall structure even when allowed to drop height 20 times than 1kg of the steel ball 1m that does not cause cracks in the concrete sidewalk plate, the thickness of the magnetic layer is characterized by a 0.2mm~0.6mm . 2. The magnetic adsorption according to claim 1 , wherein the magnetic coating material comprises a soft magnetic powder dispersed in a synthetic resin binder and 300 to 900 parts by weight of the soft magnetic powder dispersed in 100 parts by weight of the synthetic resin binder. Wall structure. A conventional shock absorbing layer is formed on the wall base, method of constructing the magnetic attraction wall forming the magnetic layer by a magnetic coating applied and cured on top of the shock absorbing layer,
The shock absorbing layer is made of a foamed PVC sheet ,
The thickness of the shock absorbing layer can be formed to an arbitrary thickness of 3 mm or more and 5 mm or less by applying a plurality of foamed PVC sheets.
A shock absorbing layer is formed by stacking a plurality of foamed PVC sheets, and is formed on a concrete sidewalk board as the base of a specimen with an arbitrary thickness of 3 mm to 5 mm, and a magnetic layer is formed on the shock absorbing layer magnetic attraction wall structure even when allowed to drop height 20 times than 1kg of the steel ball 1m that does not cause cracks in the concrete sidewalk plate, the thickness of the magnetic layer is characterized by a 0.2mm~0.6mm Construction method. 4. The magnetic adsorption according to claim 3 , wherein the magnetic coating material comprises a soft magnetic powder dispersed in a synthetic resin binder and 300 to 900 parts by weight of the soft magnetic powder dispersed in 100 parts by weight of the synthetic resin binder. Wall construction method.

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