JP3247658B2 - Building protection material, building protection method and human body protection method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure protecting material and a structure protecting method using the same wherein damage to a structure such as column can be reduced, the safety of human body can be achieved, the probability of fracture can be reduced, and harmful gas can be prevented from being generated at the time of burning. SOLUTION: A structure protecting material provided with protecting parts 3 each having a nearly arcuate cross section both in axial and vertical directions is prepared. The opposite ends 2a, 2b of the parts 3 are opened to cover a column 5 with the parts 3, in which the ends 2a, 2b are brought into contact with side surfaces 6a, 6b of the column 5, respectively. The structure protecting material has a proper shape restoring force, whereby the column 5 is tightly compressed so that the protecting material is secured to the column 5. Thus a protection surface 7 of the column 5 can be protected. The structure protecting material is formed from a plastic containing bubbles.

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 portion scratches the column surface, and the column is scratched. 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]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention has a substantially cylindrical protection portion made of plastic containing air bubbles, and the protection portion has a vertical cross section. shape is a shape having an end portion on both sides, a construct protection member configured to cover the surface of the construct by sandwiching the construct at the end of the sides, substantially axially on the outer peripheral surface of the protective portion A plurality of ridges extending in the direction are formed, and the inner peripheral surface of
Streak groove extending direction is formed, an equivalent the construct protective material
When attached to the construct, the sulcus at the corner of the construct
Abut on each other so that the groove serves as a locking means.
Is a construct protective material, characterized in that the (claim 1).

[0010] This construction protection material is plastic containing air bubbles.
The protective part has multiple outer circumferential surfaces.
Excellent in shock absorption performance due to ridges formed
It is. Therefore, both ends of the protection part of this building protection material are expanded.
Open and hold the structure with the structure protection material and secure it to the structure.
By covering the surface of the construct7,
8) The structure can be prevented from being damaged and can collide with the structure
The impact on the human body can be reduced. Also this
Construction protection is made of plastic with air bubbles
Therefore, the surface hardness is low. Therefore, scratching the pillar
No scratches. Also, because of its excellent flexibility,
There is no breakage during use or transportation.Moreover,Protection department
Creates multiple grooves along the inner surface that extend almost axiallyI
By thatWhen building protection material is attached to the building
Since the grooves serve as locking means, the construction protection
Departure from the structure is more reliably prevented.

In the present invention, if the plastic is a polyolefin-based plastic (claim 2 ), no toxic gas is generated even during combustion, so that the building protection material can be incinerated.

In the present invention, the foaming ratio of the plastic containing air bubbles is set to 10 times or more and 40 times or less.
3 ) In addition, the thickness of the protective part is 5 mm or more.
By setting the thickness to 0 mm or less (claim 4 ), sufficient shock absorbing performance and low surface hardness can be achieved while maintaining the flexibility of the building protective material.

In the present invention, if the protective part is colored by blending a coloring agent with the plastic constituting the protective part, the existence of the building can be appealed and attention can be given, and a human or a substance collides with the building. Can be prevented (claim 5 ). Further, the structure protecting material according to the invention is used to protect a prism-shaped building having a protection surface and a side surface, and the above-described end portion has a side surface from a corner which is a boundary between the protection surface and the side surface. as the distance to the point contacting is 20 millimeters or more more than 50 mm in preferably constructed construct protective material (claim 6).

[0014]

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 one embodiment of the present invention, and FIG. 2 is a perspective view thereof. The structure protection material 1 has a protection part 3 having both ends 2a and 2b. The cross-sectional shape of the protection part 3 is such that both ends 2a,
It is substantially cylindrical except that a slit is formed between 2b. Numerous ridges 11 extending in the axial direction are formed on the outer surface of the protection portion 3, and a number of inner ridges 13 extending in the axial direction are formed on the inner peripheral surface. A large number of axial grooves 15 extending in the axial direction are formed between the adjacent inner ridges 13 (valley portions).

The construction protection material 1 is 3.5 to 4 inches (1
The protective part 3 has a diameter (indicated by L1 in FIG. 1) of 82 millimeters 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 3 of the construction protection material 1 is preferably 5 mm or more and 20 mm or less, 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 3 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.

This structure 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 cells 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 expansion ratio exceeds the above range, the shape restoring force of the structure protection material 1 decreases, and the force for holding the structure between the two end portions 2a and 2b of the protection portion 3 may be insufficient.

The bubbles 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 plastics used in the protective material 1 of the present construction may include, as necessary, a coloring agent, a foaming aid, a stabilizer, a plasticizer, a weathering agent, a deterioration inhibitor, a processing aid, etc. 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, with reference to FIG.
A method of protecting the pillar 5 using will be described. 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, 2b are expanded, and both ends 2a,
The pillar 5 is sandwiched between the pillars 5 so that 2b comes into contact with the side surfaces 6a and 6b of the pillar 5, respectively. Since the structure protection material 1 is made of plastic containing air bubbles, the structure protection material 1 has an appropriate shape recovery ability. With this shape recovery ability, both ends 2a and 2b tighten the column 5, and the structure protection material 1 Fixed to 5.

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, this structure protection material 1 is made of plastic containing air bubbles, and has a large number of ridges 11 on the outer peripheral surface, so that it has excellent shock absorption performance, low surface hardness, and flexibility. It is excellent. 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. Also,
Even when the building protection material 1 moves up and down or back and forth, the end portions 2 a and 2 b are formed on the side surfaces 6 a and 6
There is no scratching of b. 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.

[0024] attaching the construct protective member 3 to the column 5, as shown in FIG. 3, is the boundary between the corner portion 17 a and side surface 6b which is the boundary between the side face 6a and the protective surface 7 and the protective surface 7 Sujimizo 15 abuts against the corner 17 b. The groove 15 functions as a so-called locking means, so that detachment of the building protection material 3 from the column 5 is more reliably prevented.

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 composition 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. If the shape of the outer die is, for example, a gear during extrusion, a plurality of ridges 11 can be formed on the outer peripheral surface of the protection portion 3. Further, by forming the shape of the inner die into, for example, a star shape, a gear shape, a substantially polygonal shape having inwardly curved sides, or the like, a large number of groove grooves 15 can be formed on the inner peripheral surface of the protection portion 3. . Also,
By rotating the outer die at the time of extrusion molding or rotating the extruded product immediately after extrusion, the ridge 11 is formed obliquely to the axial direction. Can be obtained.

The structure protection material 1 of the present invention has been described above by taking the case of curing the pillars as an example. However, the structure protection material 1 is not limited to the pillars. Can be used for various building materials. Also,
It can also be applied to prevent damage during transportation of furniture such as desks, beds, dressers, chairs, bathtubs, bookshelves, and the like. 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". When the present structure protection material 1 is applied to various structures as described above, even when the length of the structure protection material is too long with respect to the length of the structure, the present structure protection material is made of plastic containing air bubbles. Since it is flexible, it can be easily cut to an appropriate length using a cutter knife or the like.

[0027]

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;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Construct protection material 2a, 2b ... End 3 ... Protective part 5 ... Column 6a, 6b ... Side surface 7 ... Protective surface 11 ... Protrusion 13 ... Inside Protrusions 15 ... groove 17a, 17b ... corner

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E04G 21/30

Claims (8)

(57) [Claims] 1. A protection section comprising a substantially cylindrical protection section made of plastic containing air bubbles, the protection section having a cross-sectional shape having ends on both sides. a constructed construct protective material as in sandwiching the construct part covering the surface of the construct, together with a plurality of ridges are formed extending in a generally axial direction on the outer peripheral surface of the protective portion, the protective On the inner surface of the part
A groove extending in the axial direction is formed.
When protective material is attached to the structure, the corners of the structure
The sulcus groove contacts and this sulcus groove plays the role of locking means
Protective material for buildings, characterized in that it has been cut . 2. The structure protecting material according to claim 1, wherein the plastic is a polyolefin-based plastic. Wherein expansion ratio of the plastic containing the bubbles, construct protective material according to claim 1 or 2 is 10 times or more 40 times or less. 4. A construct protective material according to any one of claims 1 to 3 the thickness of the protective portion is 5 mm or more and 20 millimeters or less. Wherein said protective unit, construct the protective material according to claims 1, which is colored by the colorant to the plastic is blended in any one of claims 4. 6. A distance between a corner which is a boundary between the protection surface and the side surface and a position where the end abuts on the side surface, which is used to protect a prismatic structure having a protection surface and a side surface. The structure protection material according to any one of claims 1 to 5 , wherein the distance is set to 20 mm or more and 50 mm or less. 7. The structure protecting material according to any one of claims 1 to 6 , wherein both ends of the protection part of the structure protecting material are expanded to hold the structure 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. 8. Using constructs protective material as claimed in any one of claims 6, is sandwiched constructs both ends of the protective part of the construct protective material to construct the protective material is expanded,
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.