JP2927414B2 - Building protection material, building protection method and human body protection method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building protection material to be attached to a building such as a pillar, furniture, play equipment, etc. of a house under construction.
The present invention relates to a construction protection method and a human body protection method.

[0002]

2. Description of the Related Art When building a wooden house, pillars are firstly constructed at an early stage, and then walls, floors, windows and the like are finished. Pillars that were initially constructed may be dirty or damaged in subsequent construction. The pillars are generally not subjected to post-treatments such as painting and cloth bonding, so that dirt and scratches do not hide, so that the dirt and scratches reduce the value of a new house.

[0003] In order to prevent the pillar from being stained or scratched, the wrapping paper may be pasted or wrapped around the pillar, but this operation requires a great deal of labor, and the wrapping paper has no shock absorbing performance. It is not possible to prevent damage when a strong impact is applied to the pillar.

[0004] In order to solve this, a column curing cover is conventionally used. This is provided with a protection portion having a substantially arc-shaped cross section in the longitudinal direction and the vertical direction, and is made of a plastic such as polyvinyl chloride or polyethylene (mostly polyvinyl chloride). This pillar curing cover expands both ends of the protection portion, clamps the pillar at both ends thereof, and fixes the pillar curing cover to the pillar to cover the surface of the pillar. Also,
A column curing cover in which the shape of the end portion of the protection portion is devised so as to be applicable to columns having different dimensions has also been proposed (for example, Japanese Utility Model Publication No. 2-27085 and Japanese Utility Model Publication No. 2-27086).
Reference).

[0005] However, these plastic column curing covers still do not have sufficient shock absorbing performance and cannot sufficiently prevent damage when a strong impact is applied to the column. In addition, since the column curing cover made of plastic has a high surface hardness, when the column curing cover moves relative to the column due to an impact or the like, the end scratches the column surface, causing the column to be damaged. Sometimes. Further, since the column curing cover lacks flexibility, it may be easily damaged when a load is applied during use or transportation.

[0006] Further, since these plastic column curing covers do not have sufficient shock absorbing performance, it is not possible to sufficiently reduce the impact applied to the human body when a human collides with the cover.

In addition, since the column curing cover made of polyvinyl chloride generates toxic gas when it is burned, there is a problem that it cannot be incinerated. Pillar curing covers that cannot be incinerated are avoided by construction site workers.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has little damage to structures such as pillars, is less likely to be damaged during use or transportation, and has a problem during combustion. It is an object of the present invention to provide a structure protection material, a structure protection method, and a human body protection method that do not generate poison gas.

[0009]

The invention made to solve the above-mentioned problem has a substantially cylindrical protective portion made of plastic containing air bubbles, and the shape of this protective portion in a vertical section. Is a shape having ends on both sides,
A building protection material configured to cover the surface of the building by sandwiching the building at the ends on both sides thereof, wherein the cross-sectional shape of the protection part is a continuous waveform, (Claim 1).

[0010] Since this construction protection material is made of plastic containing air bubbles, it has excellent shock absorption performance. Therefore, by damaging the structure with the structure protection material by expanding both ends of the protection portion of the structure protection material and fixing the structure to the structure to cover the surface of the structure (claims 8 and 9), the structure is prevented from being damaged. Therefore, the impact on the human body that has collided with the structure can be reduced. In addition, since this construction protection material is made of plastic containing air bubbles, the surface hardness is low. Therefore, the pillar is not scratched. Moreover, since it is excellent in flexibility, it does not break during use or transportation. Furthermore, since the cross-sectional shape of the protection portion is a continuous waveform, the tightening force of the building protection material on the building is further increased.

Another invention made to solve the above-mentioned problem is provided with a substantially cylindrical protection portion made of plastic containing air bubbles, and the shape of the protection portion in a vertical cross section is formed on both sides. A structure protection material configured to cover the surface of the structure by sandwiching the structure between the two ends, and to both ends of the protection portion in a wide area with the structure. It is a building protection material characterized by being provided with an abutting contact portion (claim 2).

[0012] Since this construction protection material is made of plastic containing air bubbles, it has excellent shock absorption performance. Therefore, by damaging the structure with the structure protection material by expanding both ends of the protection portion of the structure protection material and fixing the structure to the structure to cover the surface of the structure (claims 8 and 9), the structure is prevented from being damaged. Therefore, the impact on the human body that has collided with the structure can be reduced. In addition, since this construction protection material is made of plastic containing air bubbles, the surface hardness is low. Therefore, the pillar is not scratched. Moreover, since it is excellent in flexibility, it does not break during use or transportation. In addition, at both ends of the protection section,
Since the abutment portion that contacts the structure over a wide area is provided, the structure protection material is prevented from easily detaching from the structure.

In these inventions, if the plastic is a polyolefin-based plastic (claim 3), no toxic gas is generated even during combustion, so that the building protection material can be incinerated.

[0014] In these inventions, the foaming ratio of the plastic containing air bubbles is set to 10 times or more and 40 times or less (claim 4), and the thickness of the protective portion is set to 5 mm or more and 20 mm or less. (Claim 5) It is possible to achieve sufficient impact absorption performance and low surface hardness while maintaining the flexibility of the building protective material.

In these inventions, if the protective part is colored by blending a coloring agent with the plastic constituting the protective part, it is possible to appeal for the existence of the structure and to call attention,
It is possible to prevent humans and objects from colliding with the structure (claim 6). Further, in the case of protecting a prismatic building having a protection surface and a side surface with the structure protection material according to these inventions, the above-mentioned end portion comes into contact with the side surface from a corner which is a boundary between the protection surface and the side surface. It is preferable that the construction protection material is configured so that the distance to the location is not less than 20 mm and not more than 50 mm (claim 7).

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings.

FIG. 1 is a cross-sectional view in a direction perpendicular to the axial direction of a building protection material 1 according to an embodiment of the present invention, and FIG. 2 is a perspective view thereof. The structure protection material 1 includes a protection portion 2 having both ends 2a and 2b. The shape of the protection part 2 is the both ends 2a, 2b
It is almost cylindrical except that it is slit-shaped. The protection portion 2 includes four convex portions 3 protruding outward in the radial direction and a concave portion 4 between the convex portions 3, and has a cross-sectional shape similar to that of a four-valve petal (continuous shape). Waveform).

The construction protection material 1 is 3.5 to 4 inches (1
It is manufactured for a column of 0.6 to 12.1 centimeters) and has an outer diameter of 82 millimeters (indicated by L1 in FIG. 1) and a length of 170 centimeters. Of course, these dimensions are appropriately determined according to the dimensions of the applied construction. The wall thickness of the protection portion 2 of the construction protection material 1 is preferably 5 mm or more and 20 mm or less, and particularly preferably 7 mm or more and 10 mm or less. If the wall thickness is less than the above range, the shape restoring force of the structure protection material 1 is reduced, and the force for holding the structure between the two end portions 2a and 2b of the protection portion 2 may be insufficient. Conversely, if the thickness exceeds the above range, the flexibility of the structure protection material 1 is impaired, and it may be difficult to deform the ends 2a and 2b when the structure is sandwiched between the end portions 2a and 2b.

The construction protection material 1 is made of plastic containing air bubbles. The plastic used is preferably a polyolefin-based plastic that can be incinerated without generating toxic gas. Examples of such a plastic include polyethylene, polypropylene, and ethylene-vinyl acetate copolymer.

The bubbles contained in the plastic may be open cells or closed cells. The expansion ratio (the ratio of the density in the absence of air bubbles to the density in the presence of air bubbles) is preferably 10 times or more and 40 times or less. If the expansion ratio is less than the above range, the building protective material 1
May have insufficient shock absorption performance. Conversely, if the foaming ratio exceeds the above range, the shape restoring force of the structure protecting material 1 is reduced, and the force for holding the structure between the two end portions 2a and 2b of the protecting portion 2 may be insufficient.

The cells are generally formed by foaming a foaming agent. The blowing agent used may be a low-boiling type blowing agent or a thermal decomposition type blowing agent. In particular, it is preferable to use a low-boiling type foaming agent since foaming is completed instantaneously and suitable for mass production. Examples of low-boiling type foaming agents include aliphatic hydrocarbons such as propane, butane and pentane,
Examples include chlorinated aliphatic hydrocarbons such as methylene chloride and methyl chloride, inorganic gases such as nitrogen and carbon dioxide, and freon.

The plastic used for the protective material 1 of the present invention may contain a coloring agent, a foaming aid, a stabilizer, a plasticizer, a weathering agent, a deterioration inhibitor, a processing aid, etc., as required, in addition to the above foaming agent. An appropriate amount is blended. In particular, by coloring the building protective material 1 with a coloring agent, workers engaged in house building work can be alerted to the presence of pillars, and humans and objects collide with the structure. This is preferable because it is possible to prevent the occurrence of the above.

Next, a method for protecting a pillar using the structure protection material 1 will be described with reference to FIG. In order to fix the structure protection material 1 to the pillar 5, the structure protection material 1 is deformed so that both ends 2a and 2b are expanded, and both ends 2a and 2b are deformed.
The column 5 is sandwiched so that a and 2b are in contact with the side surfaces 6a and 6b of the column 5, respectively. Since the structure protection material 1 is made of plastic containing air bubbles, it has an appropriate shape recovery ability.
b tightens the column 5 and the building protection material 1 is fixed to the column 5. At this time, the restoring force of the building protection material 1 against deformation is increased by the action of the convex portions 3 and the concave portions 4. Therefore, a strong force acts in the direction of pinching the column, and the column 5
Is prevented from coming off.

In this way, the protection surface 7 of the pillar 5 is
And the protective surface 7 is prevented from being stained or damaged. In particular, since this structure protective material 1 is made of plastic containing air bubbles, it has excellent shock absorbing performance,
It has low surface hardness and excellent flexibility. Therefore, even when a strong impact is applied to the pillar 5, damage can be prevented by the excellent shock absorbing ability, and safety of the human body can be achieved even when a human body collides. Further, even when the building protection material 1 moves up and down or back and forth, the end portions 2 a and 2 b do not scratch the side surfaces 6 a and 6 b of the pillar 5 due to low surface hardness. Moreover, since it is excellent in flexibility, it can be used repeatedly without being damaged during use or transportation.

When the column 5 is protected by the building protection material 1, the end 2a (2b) comes into contact with the side surface 6a (6b) from the corner which is the boundary between the protection surface 7 and the side surface 6a (6b). It is preferable to set the dimensions of the building protection material 1 so that the distance to the location (indicated by L3 in FIG. 3) is not less than 20 mm and not more than 50 mm. If the dimension of L3 is less than the above range, the structure protection material 1 may easily be detached from the pillar 5. Conversely, when the dimension of L3 exceeds the above range, it takes time and effort to expand the ends 2a and 2b and attach the building protection material 1, and it may become difficult to perform an efficient installation work. is there.

Next, a method of manufacturing the structure protection material 1 will be described. First, a cylindrical body is formed by hollow extrusion in which a molten plastic compound is extruded from a gap between an outer die and an inner die. Next, a cut is made in this cylinder in the longitudinal direction with a cutter or the like. The cut sides serve as ends 2a and 2b. According to such manufacturing, the structure protection material 1 can be obtained very easily.

FIG. 4A shows a cross section in a direction perpendicular to the axial direction of a building protection member 19 according to another embodiment of the present invention, and FIG. 2 shows how the protection surface 7 of the pillar 5 is protected by using the. The protection portion 21 of the structure protection material 19 includes three convex portions 23 protruding outward in the radial direction and a concave portion 22 between the convex portions 23, and has a cross-sectional shape of a three-valve petal. The shape is similar to (a continuous waveform). In this structure protection material 19 as well, similarly to the above-described structure protection material 1, the protection portion 21 is deformed so that both ends 20a and 20b of the protection portion 21 are expanded, and both ends 20a and 20b are respectively connected to the pillars 5. Abut on the side surfaces 6a and 6b.

Also in this structure protection material 19, the protrusion 2
Due to the action of the concave portion 22, the restoring force of the building protection member 19 against deformation is increased. Therefore, a strong force acts in the direction of pinching the pillar, and the detachment of the building protection material 19 from the pillar 5 is prevented.

The structure protection material 1 shown in FIG. 1 has a cross-sectional shape in a direction perpendicular to the axial direction similar to a four-valve petal, and the structure protection material 19 shown in FIG. Has a cross-sectional shape in a direction perpendicular to the axial direction similar to a petal of a three-valve petal, but this cross-sectional shape may be a shape similar to a petal of a five-valve petal or a shape similar to a petal of a six-petal petal. Good. In addition, in the architectural protection members 1 and 19 shown in FIGS. 1 and 4 (a), arc-shaped concave portions 4 and 22 and convex portions 3 and 23 are provided.
, A continuous waveform may be formed by, for example, a partially elliptical or partially rectangular concave and convex portion. Such a shape in which the concave portions and the convex portions are continuously present is referred to as a “continuous waveform” in this specification.

FIG. 5 (a) shows a cross section in a direction perpendicular to the axial direction of a structure protection material 24 according to still another embodiment of the present invention, and FIG. 5 (b) shows this structure protection material. 2
4 shows how the protection surface 7 of the pillar 5 is protected by using 4. Both ends 25 of the protection portion 26 of the building protection material 24
a, 25b are provided with contact portions 27a, 27b rising from the ends 25a, 25b. Contact part 27
The upper ends of a and 27b are flat carrier surfaces 28a and 28b. When this building protection material 24 is attached to the pillar 5, the end faces 28 a and 28 b come into contact with the side faces 6 a and 6 b of the pillar 5 as shown in FIG. Therefore, the contact area between the building protection member 24 and the column 5 is larger than that of the building protection members 1 and 19 of the embodiment shown in FIGS. 1 and 4. For this reason, detachment of the building protection member 24 from the column 5 is prevented.

FIG. 6 (a) shows a cross section in a direction perpendicular to the axial direction of a structure protection material 29 according to still another embodiment of the present invention, and FIG. 6 (b) shows this structure protection material. 2
9 shows how the protection surface 7 of the pillar 5 is protected by using the reference numeral 9. Both ends 30 of the protection part 31 of this construction protection material 29
The a and 30b are provided with substantially L-shaped contact portions 32a and 32b which stand from the ends 30a and 30b. The upper ends of the contact portions 32a, 32b are flat carrier surfaces 33a, 33b.
It has been. When this structure protection material 29 is attached to the pillar 5, as shown in FIG. 6 (b), the end faces 33a, 33b
Abut on the side surfaces 6a and 6b of the pillar 5. Thus, further than the embodiment shown in FIG.
Contact area can be increased. For this reason, detachment of the building protection material 29 from the column 5 is more reliably prevented.

FIG. 7 (a) shows a cross section in a direction perpendicular to the axial direction of a structure protecting material 34 according to still another embodiment of the present invention, and FIG. 7 (b) shows this structure protecting material. 3
4 shows how the protection surface 7 of the pillar 5 is protected by using 4. Both ends 35 of the protection portion 36 of the building protection material 34
a, 35b are provided with substantially T-shaped contact portions 37a, 37b rising from the ends 35a, 35b. The upper ends of the contact portions 37a, 37b are flat carrier surfaces 38a, 38b.
It has been. When this building protection material 34 is attached to the pillar 5, as shown in FIG. 7 (b), the end faces 38a, 38b
Abut on the side surfaces 6a and 6b of the pillar 5. Therefore, as in the embodiment shown in FIG. 6, the contact area between the building protection member 34 and the pillar 5 can be increased. For this reason, detachment of the building protection member 34 from the column 5 is more reliably prevented.

FIG. 8 (a) shows a cross section in a direction perpendicular to the axial direction of a structure protection material 39 according to still another embodiment of the present invention, and FIG. 8 (b) shows this structure protection material. 3
9 shows how the protection surface 7 of the pillar 5 is protected by using the reference numeral 9. Both ends 40 of the protection part 41 of the building protection material 39
The a and b are provided with abutment portions 42a and 42b which are thicker than portions other than the end portions 40a and 40b. The upper ends of the contact portions 42a and 42b are flat carrier surfaces 43a and 43b. When the building protection material 39 is attached to the pillar 5, the end faces 43a and 43b abut the side faces 6a and 6b of the pillar 5 as shown in FIG. Therefore, as in the embodiment shown in FIG. 6, the contact area between the building protection member 39 and the pillar 5 can be increased. For this reason, detachment of the building protection member 39 from the column 5 is more reliably prevented.

The structure protection material 2 shown in FIGS. 5 to 8
In 4, 29, 34, and 39, the abutting portions 27a, 27b, 32a, 32b, 37a, and 37 are provided at both ends of the protection portions 26, 31, 36, and 41 whose cross sections in the direction perpendicular to the axial direction are annular.
b, 42a, 42b are provided, but such contact portions 27a, 27b, 32a, 32b, 37a, 37
b, 42a and 42b may be provided at both ends of the protection portions 2 and 21 having a continuous waveform in a cross section perpendicular to the axial direction as shown in FIGS. 1 and 4 to constitute a building protection material. . In this case, the tightening force is improved by the protection portions 2 and 21 having continuous waveforms, and the contact portions 27a, 27b, 32a, and 32 are improved.
By improving the contact area by b, 37a, 37b, 42a, 42b, detachment of the building protection material from the pillar 5 is more reliably prevented.

Although the structure protecting material of the present invention has been described taking the case of curing the pillars as an example, the present invention is not limited to the pillars. Can be used for building materials. Also, desk,
The present invention can also be applied to prevent damage during transportation of furniture such as a bed, a dresser, a chair, a bathtub, and a bookcase. Further, by using these furniture and playground equipment such as swings, slides, iron bars, and children's bicycles in parks, the safety of the human body when a child collides can be achieved. In this specification, these building materials, furniture, playground equipment, and the like are referred to as "constructs". In applying the present structure protective material to various structures in this way, even when the length of the structure protective material is too long relative to the length of the structure, the present structure protective material is formed of plastic containing air bubbles. Since it is flexible, it can be easily cut to an appropriate length with a cutter knife or the like before use.

[0036]

As described above, according to the present invention, there is little damage to structures such as pillars, the safety of the human body can be improved, there is little risk of damage, and no toxic gas is generated during combustion. A protective material, a structure protection method, and a human body protection method can be obtained.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a structure protecting material according to an embodiment of the present invention.

FIG. 2 is a perspective view showing the structure protecting material shown in FIG. 1;

FIG. 3 is a cross-sectional view illustrating a manner in which a pillar is protected by the building protection material illustrated in FIG. 1;

FIG. 4 (a) is a cross-sectional view showing a structure protecting material according to another embodiment of the present invention, and FIG. 4 (b) is a sectional view of FIG.
It is sectional drawing which showed a mode that the pillar was protected with the structure protection material shown to (a).

FIG. 5 (a) is a cross-sectional view showing a structure protecting material according to still another embodiment of the present invention, and FIG. 5 (b)
FIG. 6 is a cross-sectional view showing a state in which the pillar is protected by the building protection material shown in FIG.

FIG. 6 (a) is a cross-sectional view illustrating a structure protecting material according to still another embodiment of the present invention, and FIG. 6 (b).
FIG. 7B is a cross-sectional view illustrating a state in which the pillar is protected by the building protection material illustrated in FIG.

FIG. 7A is a cross-sectional view illustrating a structure protecting material according to still another embodiment of the present invention, and FIG.
FIG. 8 is a cross-sectional view illustrating a state in which a pillar is protected by the building protection material illustrated in FIG.

FIG. 8A is a cross-sectional view illustrating a structure protecting material according to still another embodiment of the present invention, and FIG.
FIG. 9 is a cross-sectional view illustrating a state in which the pillar is protected by the building protection material illustrated in FIG.

[Explanation of symbols]

1, 19, 24, 29, 34, 39 ...
... Construction protection materials 2, 21, 26, 31, 36, 41 ...
... Protecting parts 2a, 2b, 20a, 20b, 25a, 25b ...
... Ends 30a, 30b, 35a, 35b, 40a, 40b ...
・ ・ ・ End 3,23 ・ ・ ・ ・ ・ ・ ・ ・ ・
・ ・ ・ Protrusions 4, 22 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・
... Recesses 27a, 27b, 32a, 32b ...
... Abutment parts 37a, 37b, 42a, 42b ...
... Abutting parts 28a, 28b, 33a, 33b ...
... Bearing surfaces 38a, 38b, 43a, 43b ...
... Tan surface

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E04G 21/30 E04B 1/98

Claims (9)

(57) [Claims] 1. A protection device according to claim 1, further comprising a substantially cylindrical protection portion made of plastic containing air bubbles, wherein the protection portion has a shape in a vertical cross section having ends on both sides. What is claimed is: 1. A structure protection material configured to cover a surface of a structure by sandwiching the structure, wherein a cross-sectional shape of the protection part has a continuous waveform. 2. A protection device comprising a substantially cylindrical protection portion made of plastic containing air bubbles, wherein the shape of the protection portion in a vertical cross section is a shape having ends on both sides. What is claimed is: 1. A structure protection material configured to cover a surface of a structure by sandwiching the structure, wherein at both ends of the protection portion, there are provided abutting portions which are in contact with the structure over a wide area. Protective layer. 3. The building protection material according to claim 1, wherein the plastic is a polyolefin-based plastic. 4. The building protection material according to claim 1, wherein the foaming ratio of the plastic containing air bubbles is 10 times or more and 40 times or less. 5. The structure protection material according to claim 1, wherein the thickness of the protection portion is 5 mm or more and 20 mm or less. 6. The protection section according to claim 1, wherein the protection section is colored by adding a colorant to the plastic.
The construction protection material according to any one of the above. 7. A prismatic structure having a protective surface and side surfaces.
Used to protect the boundary between this protective surface and the side
From the corner to the point where the end abuts on the side.
Separation is 20mm or more and 50mm or less
7. Any one of claims 1 to 6, wherein
2. The building protection material according to claim 1. 8. The structure protecting material according to any one of claims 1 to 7 , wherein both ends of the protection part of the structure protecting material are expanded to sandwich the building with the structure protecting material.
A structure protection method in which a structure protection material is fixed to a structure and the surface of the structure is covered with the structure protection material. 9. The structure protecting material according to any one of claims 1 to 7 , wherein both ends of the protection part of the structure protecting material are expanded to hold the structure with the structure protecting material.
A human body protection method in which a structure protection material is fixed to a structure to reduce impact on a human body colliding with the structure.