JP2001252913A - Wood chip block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wood chip block by which burden to the legs and the hip is lowered, and fear for injuries is also reduced even when a walker tumbles by the cushioning action of wood chips by laying the wood chip block as a pavement mat on the street surface, parks and the rooftop or the like, and which is suitable for playing areas of kidergartens and nursery schools. SOLUTION: A binder comprising a natural latex is mixed in wood chip which is a pulverized article of wood, and the mixture is press-molded for this wood chip block. Then, in the wood chip block, seeds of plants and fertilizers are mixed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wood chip block which can be used for multi-purpose purposes, such as a plant curing mat, a plant growing mat, a pavement mat, etc., by molding wood chips, which are pulverized wood products.

[0002]

2. Description of the Related Art A room temperature pavement mixture obtained by adding a binder to wood chips obtained by pulverizing wood such as thinned wood or waste wood into chips is known from JP-A-8-113715. Wood chips are reformed by heating in a high-temperature high-pressure vessel using steam or high-frequency waves or a combination of water vapor and high-frequency waves, and pressing the same to extrude harmful components contained in the wood chips.
It is known from -16806.

There is also known a pavement method in which a wood chip is mixed with a polymer resin, an asphalt emulsion, or an epoxy resin as a binder at the site and laid on a road or a park.

[0004]

However, conventionally,
Although a technique for mixing a wood chip with a binder and using it as a pavement material for roads and parks is known, it is not known as a molded article formed into a fixed shape. Therefore, even when laying on a road or a park, it is difficult to handle wood chips, the construction is troublesome, and many man-hours are required.

Further, the conventional one has a problem that the manufacturing conditions are high temperature and high pressure, and the environmental load is high in terms of energy consumption and use of a large amount of chemically synthesized substances.

The present invention has been made in view of the above circumstances, and an object thereof is to form a wood chip into a block shape, for example, a multipurpose object such as a plant curing mat, a plant growing mat, and a paving mat. Another object of the present invention is to provide a wood chip block that is environmentally friendly because it uses natural sap as a binder and naturally circulates in soil.

[0007]

According to the present invention, in order to achieve the above-mentioned object, a first aspect of the present invention is that a wood chip, which is a pulverized product of wood, is mixed with a binder made of natural latex and molded by pressure. A wood chip block characterized by the following.

According to a second aspect of the present invention, in the wood chip block according to the first aspect, plant seeds are further mixed.

A third aspect of the present invention is the wood chip block according to the first or second aspect, further comprising a fertilizer.

According to a fourth aspect of the present invention, a binder made of natural latex is mixed into wood chips, which are pulverized wood products, and the mixture is pressure-formed into a mat shape to be used as a plant curing mat, a plant growing mat, and a pavement mat. A wood chip block characterized by the above.

According to a fifth aspect, in the wood chip block according to any one of the first, second, and third aspects, natural latex is added to the wood chip in an amount of 30 to 60% by weight. .

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 show a first embodiment, and FIG.
1 is a perspective view of a wood chip block. The wood chip block 1 includes a wood chip 2 obtained by pulverizing wood such as thinned wood and waste wood, and a natural (NR) latex (a latex containing hydrocarbons such as natural rubber in its main chain). 2), and the mixture 4 is accommodated in a mold 5 as shown in FIG. 2, and is heated and vulcanized while being pressed by a pressure plate 5a to be hardened. The molding frame 5 has a small hole (not shown) partially or entirely, so that steam generated by heating can be released to the outside. The pressure plate 5a may be pressed with a light force by a hand press, a clamp, a weight, or the like. However, as described below,
When seeds are mixed, the mixture is vulcanized in a room temperature range by a blending operation of natural latex, and is hardened by aging or pre-vulcanization of natural latex. Alternatively, take steps such as pelletizing the seeds in advance with wood powder or fertilizer. In addition,
Here, the wood chip 2 and the binder 3 may be either a stirring method or a dipping method, and the removal of residual moisture after vulcanization is performed by natural drying or forced drying. When the binder 3 is sprayed by the immersion method, the excess binder 3 needs to be flown. However, as described above, by providing a small hole (not shown) in the molding die 5, the excess binder 3 can be discharged.

The mixing ratio between the wood chips 2 and the binder 3 is preferably 50% by weight: 50% by weight, but the binder 3 may be in the range of 30 to 60% by weight. Because the strength, voids, etc. of the wood chip block 1 change, and the water permeability also changes,
It is necessary to select the wood chip block 1 according to the use purpose, use environment, and the like.

Wood chip block 1 of the first embodiment
As shown in FIG. 3 (a), it can be used as a rectangular pavement mat 6 laid on the ground such as a sidewalk or a park, and as shown in FIG. Can be formed into a half donut shape and covered so as to surround the root of the seedling 7. The shapes and thicknesses of the pavement mat 6 and the protection mat 8 are not limited, and can be appropriately changed according to the purpose of use, and have a physical growth inhibiting effect on undergrowth. In some cases, the secretion of the substance itself has an effect of controlling undergrowth.
Further, the protective mat 8 has an effect of preventing cold damage in a cold region, an effect of preventing soil from flowing out of the topsoil, and an effect of preventing drying of the soil because it has water permeability.

FIG. 4 shows a second embodiment, in which a plant growing mat 12 in which a plant (for example, turf) seed 10 and a fertilizer 11 are added to the wood chip block 1 in the first embodiment. . According to the present embodiment, when the binder 3 is mixed into the wood chips 2, the additive is uniformly mixed by simultaneously adding the seed 10 and the fertilizer 11, so that the wood chip 2 is buried in the soil or laid in the soil or The lawn 12a can be laid on a roof without soil.
Can be created. Since the wood chip block 1 has a heat insulating effect, laying it on a roof or the like also has an energy saving effect.

The wood chip block 1 to which the seeds 10 and the fertilizer 11 are added can be laid by transporting a large amount of cured / grown material at a factory or the like to a laying place, and in a short time. In addition, the rooftop and the like can be changed to green belts, which is suitable for construction of event venues and the like, and the removal work after use can be easily performed.

In the above embodiment, no specific example is given for the material, grain size, and grain shape of the wood chip 2, but it is necessary to select the wood chip block 1 according to the purpose of use and the use environment. Seeds 10 into fertilizer 11
In addition, since the degree of germination and the degree of dissolution of fertilizer differ depending on the particle size and density, it is necessary to select the type according to the type of seed and the type of fertilizer.

[0019]

As described above, the wood chip block of the present invention has the following effects.

(1) By laying as a pavement mat on a road surface, a park, a rooftop, or the like, the cushioning effect of the wood chip reduces the burden on the feet and waist, reduces the risk of injuries even if the child falls, and can be used in kindergartens and nursery schools. Suitable for play areas.

(2) As a protective mat for the seedlings, by covering the roots of the seedlings so as to surround them, there is a physical growth-inhibiting effect on undergrowth, and depending on the selected wood, secretions inherent in the wood may be used. It has the effect of controlling undergrowth. Furthermore, it has an effect of preventing cold damage in a cold region, an effect of preventing soil from flowing out of the topsoil, and an effect of preventing drying of the soil due to its water permeability.

(3) By mixing seeds and fertilizer, soil-free concrete road, asphalt road,
If it is laid on the rooftop or the like, it can be changed into a green belt, and it is also possible to transport and lay a large amount of materials that have been cured / grown in factories, etc. to the installation site,
The rooftop and the like can be changed to green areas, which is suitable for construction of an event venue or the like, and has an effect that removal work after use can be easily performed.

(4) Wood chips are inexpensive, materials can be easily obtained, inexpensive wood chip blocks can be provided, and they are lightweight, so that they are easy to carry and work.

[Brief description of the drawings]

FIG. 1 is a perspective view of a wood chip block showing a first embodiment of the present invention.

FIG. 2 is a vertical sectional side view showing a state in which a mixture of the wood chips and the binder according to the embodiment is pressed.

3A and 3B show a use state of the embodiment, wherein FIG. 3A is a perspective view of a pavement mat, and FIG. 3B is a perspective view of a protection mat.

4A and 4B show a second embodiment of the present invention, in which FIG. 4A is a vertical sectional side view of a wood chip block, and FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Wood chip block 2 ... Wood chip 3 ... Binder 6 ... Pavement mat 8 ... Protective mat 10 ... Seed 11 ... Fertilizer

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) A01M 21/00 A01M 21/00 A 4F071 B27N 3/10 B27N 3/10 4J002 C08J 5/00 CFJ C08J 5 / 00 CFJ C08L 7/02 C08L 7/02 97/02 ZAB 97/02 ZAB 99/00 99/00 E01C 5/14 E01C 5/14 E04C 1/39 E04C 1/39 LF term (reference) 2B022 AA01 AB01 BA14 BB02 2B024 AA04 BA02 DB10 DC10 2B121 AA19 BB25 BB31 BB32 EA21 FA12 2B260 AA20 BA01 BA05 BA18 CA02 CD30 DA12 EA03 EA05 EB02 EB06 EB19 EB21 2D051 AD07 AG03 AG06 EB04 EB06 4F07 A03A03 A03 A03 A03 A03 A03 A03 A03 A03 A03 A03 A03 A03 A03 A03 A03 A03 A03 A03 A03 FD011 GL01

Claims (5)

[Claims] 1. A wood chip block obtained by mixing a binder made of natural latex into wood chip, which is a crushed product of wood, and press-molding the wood chip block. 2. The wood chip block according to claim 1, further comprising plant seeds mixed therein. 3. The wood chip block according to claim 1, further comprising a fertilizer. 4. A wood chip, which is a crushed product of wood, is mixed with a binder made of natural latex, and the resulting mixture is pressed into a mat to be used as a mat for curing plants, a mat for growing plants and a mat for paving. Wood chip block. 5. The method according to claim 1, wherein 30-60% by weight of natural latex is added to the wood chips.
2.3 The wood chip block according to any one of items 3 and 4.