JP4377303B2 - Core hollow panel and core hollow panel parts - Google Patents

Description

The present invention relates to a core-type hollow panel that can be used as a component of industrial design objects in various industrial fields, such as building interior / exterior materials, joinery, furniture, children's playground equipment, educational modeling materials, and the like, and components used therefor. is there.

2. Description of the Related Art Conventionally, there is known a core-type hollow panel including two plate members arranged in parallel and facing each other and a core member arranged between the plate members. A specific example of such a core-type hollow panel is shown in FIG. In this core-type hollow panel, a core material 100 assembled in a lattice shape is fitted in an outer frame 101, and the core material 100 and the outer frame 101 are joined to plate materials 102 and 103 by an adhesive or welding. It is structured.

Patent Document 1 also proposes a core-type hollow panel in which a plate material and a core material are joined by welding or an adhesive.

Japanese Patent Laid-Open No. 10-202771

Such a core-type hollow panel is maintained in mechanical strength by a core material existing between two plate materials. Moreover, since many space is made between board | plate materials, it has the advantage that it is lightweight. For this reason, it is widely used as a component of industrial design moldings in various industrial fields such as architectural interior / exterior materials, joinery, furniture, children's playground equipment, educational modeling materials and the like.

However, in the above conventional core type hollow panel, an adhesive or welding technique is used to join the core material and the plate material. Therefore, an adhesive process including application and drying of the adhesive, or a brazing material for welding. It is necessary to perform a welding process in which welding is performed by a technique such as electric welding or argon welding. For this reason, there has been a problem that the production work becomes troublesome and, as a result, the manufacturing cost increases.

In addition, when the core material and the plate material are bonded using an adhesive, the component of the adhesive may cause a sick house.

Furthermore, when trying to dispose of a core-type hollow panel that is no longer needed, the product is large, so it must be handled as bulky waste in order to dispose of it as it is, and it requires labor and expense for disposal. It was. Further, it is possible to eliminate coarse dust by finely cutting the core type hollow panel. However, it is still necessary to cut the strong core type hollow panel finely.

In addition, it is conceivable to reuse a core-type hollow panel that has become unnecessary, but it is rare that a core-type hollow panel that can only be used in that size can be reused.

The present invention has been made in view of the above-described conventional circumstances, and is a core-type hollow that is easy to dispose and reuse without being troublesome in production, low in production cost, not causing a sick house. Providing a panel and a core-type hollow panel component used therefor is an issue to be solved.

The core-type hollow panel of the present invention has a substantially plate shape, a male plate member in which protrusions having the same shape are aligned and repeatedly formed on one surface side, and a substantially plate shape, and the male plate member on one surface side. And a female plate member in which a receiving portion that can be fitted to the protruding portion is repeatedly formed in alignment with the protruding portion, and the protruding portion of the male plate member and the female plate member The male plate member and the female plate member are integrally molded from a plastic material.

In the core type hollow panel of the present invention, the core material is formed by fitting the protruding portion formed on the male plate member and the receiving portion formed on the female plate member. For this reason, it can be manufactured without performing troublesome operations such as a bonding process consisting of application and drying of an adhesive and a welding process in which a brazing material for welding is welded by a technique such as electric welding or argon welding. Cost can be reduced. In addition, since no adhesive is used in manufacturing, it does not cause a sick house.

Further, when a load is applied to the surface of the core type hollow panel of the present invention, bending occurs, whereby tensile stress and compressive stress act on the surfaces of the male plate member and the female plate member. For this reason, the projecting portion fitted with the frictional force tries to jump out from the receiving portion in an oblique direction, but the stronger the force that tries to jump out, the stronger the frictional force, and the weaker the frictional force, The balance of force is maintained throughout the panel surface. For this reason, the fitting of the protrusion part and the receiving part of the core type hollow panel of the present invention becomes strong. In this case, the longer the length of the protruding portion, the more difficult it is to be removed from the receiving portion, which is advantageous in terms of strength.

Furthermore, since the protruding part of the male plate member and the receiving part of the female plate member are detachably fitted, when the core type hollow panel that is no longer needed is to be discarded, the fitting part is removed. It can be easily disassembled into a male plate member and a female plate member. The separated male plate member and female plate member no longer have a core-type hollow panel structure, and can be easily cut into pieces. For this reason, it becomes easy to dispose as well as coarse garbage, and the labor and cost required for disposal can be reduced.

Moreover, the core type hollow panel can be easily obtained by disassembling the core type hollow panel which has become unnecessary into a male plate member and a female plate member, cutting the core type hollow panel to a required size and shape, and then re-fitting. Can also be reused.

Furthermore, since the male plate member and the female plate member are integrally molded from a plastic material, the number of manufacturing steps is small, so that no labor is required and the manufacturing cost is low.

Therefore, according to the core-type hollow panel of the present invention, the production work is not troublesome, the production cost is low, it does not cause a sick house, and disposal and reuse are easy.

In the core-type hollow panel of the present invention, a notch that extends from one end side of the male plate member to the other end side is provided between the protruding portions of the male plate member, and between the receiving portions of the female plate member. It is preferable that the notches reaching from the one end side to the other end side of the female plate member are provided vertically and horizontally.

If such a cut is provided in the male plate member and the female plate member, the male plate member and the female plate member can be divided along the cut using scissors and a cutter knife. For this reason, the core-type hollow panel of the shape required on-site can be manufactured on-site. Therefore, it is not necessary to prepare a number of core type hollow panels having different sizes and shapes for each purpose in the factory, and the manufacturing cost of the core type hollow panel can be further reduced.

In addition, when reusing the core-type hollow panel that is no longer needed, the fitting portion is removed and the male plate member and the female plate member are disassembled. After forming the male plate member and female plate member in shape, the core plate hollow panel for a new purpose can be easily made by fitting the male plate member and the female plate member again. For this reason, the reuse of the core-type hollow panel is further facilitated. In addition, when discarding the core-type hollow panel, the male plate member and the female plate member from which the fitting portion has been removed can be further cut along the incision, so that it is not necessary to handle bulky trash. Can be disposed of as noncombustible garbage.

The protrusion of the male plate member and the receiving portion of the female plate member can be used as long as they can be fitted. For example, the protruding portion of the male plate member has a structure in which two rectangular plates that intersect each other at the center so as to have an X-shaped cross section are suspended in the thickness direction of the male plate member. The receiving portion of the member may have a structure in which a square frame that can be fitted to the protruding portion of the male plate member is suspended in the thickness direction of the female plate member. In this case, the two rectangular plates that intersect at right angles at the center of the protrusions support each other, so that a core-type hollow panel having excellent mechanical strength can be obtained.

Further, the core type hollow panel of the present invention lacks one row of either the protruding portion that is repeatedly formed in alignment with the male plate member or the receiving portion that is repeatedly formed in alignment with the female plate member. It can also have a missing part. If this is the case, bend at a right angle from the notch of the male plate member or female plate member having the missing portion, and bend at a right angle from the notch of the female plate member or male plate member not having the missing portion, By fitting the projecting portion and the receiving portion that are aligned with each other, a core-type hollow panel for a corner bent at a right angle can be obtained.

In order to adjust the thickness of the core type hollow panel of the present invention, the following core type hollow panel parts can be used.

That is, the core-type hollow panel component according to the first aspect of the present invention has a substantially plate shape, and the same shape of the protruding portion is repeatedly formed on one side, and the same shape as the protruding portion on the other side. The receiving portion into which the member can be fitted is repeatedly formed in alignment with a position aligned with each protrusion, and is integrally molded from a plastic material.

If this is the case, this core-type hollow panel component can be used as a component for increasing the thickness of the core-type hollow panel of the present invention. That is, the protruding part of the core type hollow panel component of the first invention is fitted to the receiving part of the female member of the core type hollow panel of the present invention, and the receiving part of the core type hollow panel component of the first invention is It is made to fit in the protrusion part of the male plate member of the core type hollow panel of the invention. Thereby, the core type hollow panel component is inserted between the female plate member and the male plate member of the core type hollow panel of the present invention, and the thickness of the core type hollow panel can be increased. Further, if the core type hollow panel parts are stacked by fitting the protruding part and the receiving part and further inserted between the female plate member and the male plate member, the thickness of the core type hollow panel is further increased. It can also be enlarged. Further, since the core-type hollow panel component is integrally molded from a plastic material, the number of manufacturing steps is small, and it is not time-consuming and the manufacturing cost is low.

In this case, it is also possible to have a missing portion in which one row of either the protruding portion or the receiving portion is missing, and a notch that can be bent along the missing portion may be provided. If it is like this, it will be bent at right angles from the notch along the missing part of this core type hollow panel part to the missing part side, and it will be arranged between the male plate member and female plate member of the core type hollow panel for the corner. The core for the corner is made by fitting the protruding portion and the receiving portion of the core-type hollow panel component to the receiving portion of the female plate member and the protruding portion of the male plate member of the core-type hollow panel for the corner, respectively. The thickness of the hollow panel can be increased.

Moreover, the core type hollow panel component of the second invention is for processing a small edge. That is, the core type hollow panel component according to the second aspect of the present invention includes a small band part in which a strip-shaped plate material is bent in an L shape, and a small edge that is aligned in a line on one surface side of the small band part and protrudes in the thickness direction. The small-mouthed convex part is fitted into a fitting part in which the projecting part and the receiving part of the core-type hollow panel according to claims 1 to 4 are fitted, so that the core-type hollow panel has a convex part. The fore edge can be shielded by the fore edge belt part and is integrally molded from a plastic material.

By fitting the small convex part of the core type hollow panel part into the fitting part in which the protruding part and the receiving part of the core type hollow panel are fitted, the small edge of the core type hollow panel is shielded by the small band part. Can be made. For this reason, a fore edge becomes a strip-like neat shape. Further, since the core-type hollow panel component is integrally molded from a plastic material, the number of manufacturing steps is small, and it is not time-consuming and the manufacturing cost is low.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, embodiments of the invention will be described with reference to the drawings.

<Embodiment of core-type hollow panel>

(Embodiment 1) This core type hollow panel is comprised from the substantially plate-shaped male plate member 1 shown to FIG.1 and FIG.2, and the substantially plate-shaped female plate member 2 shown to FIG.3 and FIG.4. . Both the male plate member 1 and the female plate member 2 are integrally formed by plastic press molding. About the kind of plastic, it can select suitably according to the objective, such as a polypropylene, polyethylene, a vinyl chloride resin.

As shown in FIGS. 1 and 2, the male plate member 1 includes a thin plate-shaped surface member 1a, and on one surface side of the surface member 1a, cuts 1b are formed at equal intervals in a grid pattern. . The depth of the cut 1b is about half the thickness of the surface member 1a (see FIG. 15). A projecting portion 1c projecting from the surface member 1a is formed in the square of the smallest unit partitioned by the notch 1b. As shown in FIGS. 5, 6, 11, and 12, the protruding portion 1 c has two rectangular plates that intersect at right angles at the center so that the cross section is X-shaped in the thickness direction of the surface member 1 a. A cylindrical portion 1d having a circular cross section extends at both ends in the length direction of the rectangular plate constituting the protruding portion 1c. Moreover, the other surface side of the surface member 1a is a smooth surface without unevenness.

As shown in FIGS. 3 and 4, the female plate member 2 includes a thin plate-like surface member 2a. Like the male plate member 1, the female plate member 2 is provided on one surface side of the surface member 2a at equal intervals vertically and horizontally. The cut 2b is made. The depth of the cut 2b is about half the thickness of the surface member 2a (see FIG. 15). As shown in FIGS. 7 to 9, 13, and 14, a receiving portion 2 c is formed so as to protrude from the surface member 2 a in the square of the smallest unit partitioned by the notches 2 b. The receiving portion 2c has a structure in which a square frame that is slightly smaller than the square of the smallest unit divided by the notches 2b is suspended in the thickness direction of the surface member 2a. Moreover, the other surface side of the surface member 2a is a smooth surface without unevenness.

The male plate member 1 (see FIGS. 1 and 2) and the female plate member 2 (see FIGS. 3 and 4) are provided at the four corners of the protruding portion 1c of the male plate member 1, as shown in FIG. The cylinder 1d is brought into contact with the four corners in the square frame of the receiving portion 2c of the female plate member 2 so that the protruding portion 1c and the receiving portion 2c are fitted together to form a core type hollow panel. ing.

The core type hollow panel of the embodiment configured as described above can be manufactured by simply fitting the male plate member 1 and the female plate member 2 together. Moreover, each plate member can be manufactured from a plastic material by a single process called press molding. For this reason, it can manufacture by an extremely short process, without passing through a troublesome process, such as an adhesion process and a welding process, and a manufacturing cost becomes low. Moreover, since no adhesive is used, sick house is not caused.

Further, when a load is applied in a direction perpendicular to the surface of the core-type hollow panel, bending occurs, whereby tensile stress and compressive stress act on the male plate member 1 and the female plate member 2. For this reason, the protruding portion 1c fitted with the frictional force tries to jump out of the receiving portion 2c in an oblique direction. However, the stronger the force that is about to jump out, the stronger the frictional force. And balance of power is maintained. For this reason, fitting of the protrusion part 1c and the receiving part 2c becomes firm. In this case, the longer the length of the projecting portion 1c, the more difficult it is to come out from the receiving portion 2c, which is advantageous in terms of strength.

Further, since the male plate member 1 and the female plate member 2 have cuts 1b and 2b in the vertical and horizontal directions, they can be easily cut using a cutter knife or scissors along the cuts 1b and 2b. it can. For this reason, according to the objective in a construction site, the male plate member 1 and the female plate member 2 can be made into the desired magnitude | size and shape. In the manufacturing plant, it is not necessary to prepare a number of different core type hollow panels for each purpose. Therefore, the manufacturing cost of the core type hollow panel can be further reduced.

When reusing a core-type hollow panel that is no longer needed, the fitting portion is removed and the male plate member 1 and the female plate member 2 are disassembled. Further, along the notches 1b and 2b, a new purpose is obtained. After making a male plate member and a female plate member of a corresponding size and shape, a new core hollow panel can be easily made by fitting again. For this reason, reuse of the core-type hollow panel which became unnecessary becomes still easier. Further, even when the core-type hollow panel is discarded, the fitting portion can be removed and the male plate member 1 and the female plate member 2 can be disassembled, and further cut along the cuts 1b and 2b. For this reason, it can be disposed of as general incombustible garbage without being handled as bulky garbage, and can be disposed of at low cost.

(Embodiment 2) The core-type hollow panel of Embodiment 2 is a core-type hollow panel for corners having a right angle portion. This core-type hollow panel is composed of a substantially plate-shaped male plate member 11 (see FIGS. 16 and 17) and a substantially plate-shaped female plate member 12 (see FIGS. 3 and 4).

The male plate member 11 is different from the male plate member 1 according to the first embodiment shown in FIGS. 1 and 2 only in that a missing portion 11a in a state where the protruding portions 1c are missing for one row is provided. Other configurations are the same as those of the male plate member 1 according to the first embodiment, and the same components are denoted by the same reference numerals and detailed description thereof is omitted.

Moreover, as shown in FIG.3 and FIG.4, the female plate member 12 is the same as the female plate member 2, attaches | subjects the same code | symbol and abbreviate | omits detailed description.

By bending and fitting the male plate member 11 and the female plate member 12 to each other, a core-type hollow panel bent at a right angle is formed. That is, as shown in FIG. 18A, the male plate member 11 is bent to the missing portion 11a side along the cut 1b close to the missing portion 11a, and the female plate member 12 is turned to the opposite side of the receiving portion 2c along the cut 2b. Bend at right angles. Then, as shown in FIGS. 20A to 20C, the protruding portion 1 c and the receiving portion 2 c that are aligned with each other are sequentially fitted from one end side to the other end side. Thus, the core hollow panel for the corner having the right angle portion shown in FIG. 20c is formed.

(Embodiment 3) Similarly to the core-type hollow panel of Embodiment 2, the core-type hollow panel of Embodiment 3 is also a core-type hollow panel for corners having a right angle portion. As shown in FIGS. 19 and 20, the core-type hollow panel includes a substantially plate-shaped female plate member 22 (see FIGS. 19 and 20) and a substantially plate-shaped male plate member 21 (see FIGS. 1 and 2). ).

The female plate member 22 is different from the female plate member 2 according to the first embodiment shown in FIGS. 3 and 4 only in that a missing portion 22a in a state where the receiving portions 1c are missing for one row is provided. Other configurations are the same as those of the female plate member 2 according to the first embodiment, and the same components are denoted by the same reference numerals and detailed description thereof is omitted.

Moreover, as shown in FIG.1 and FIG.2, the male plate member 21 is the same as the male plate member 1, attaches | subjects the same code | symbol and abbreviate | omits detailed description.

The female plate member 22 and the male plate member 21 are fitted to each other while being bent, similarly to the core type hollow panel of the second embodiment, so that a core type hollow panel bent at a right angle can be obtained.

<Embodiment of the core type hollow panel component of the first invention>

(Embodiment 4) As shown in FIGS. 21 to 23, the core-type hollow panel component of Embodiment 4 includes a thin plate-shaped surface member 31, a protruding portion 32 protruding to one surface side of the surface member 31, and a surface member It is comprised from the receiving part 33 which protrudes to the other surface side of 31. As shown in FIG. The core-type hollow panel component is integrally formed by plastic press molding.

The protruding portion 32 and the receiving portion 33 have the same shape as the protruding portion 1c (see FIGS. 5 and 6) and the receiving portion 2c (see FIGS. 7 and 8) in the core type hollow panel of the first embodiment. The same components are denoted by the same reference numerals, and detailed description thereof is omitted. Moreover, between the protrusion parts 32 and the receiving part 33 in the surface member 31, the notches 31a and 31b are made | formed by the horizontal and vertical equal intervals.

As shown in FIGS. 24 and 25, the core-type hollow panel component is disposed between the male plate member 1 and the female plate member 2 according to the core-type hollow panel of the first embodiment, and the receiving portion 33 is a male plate. By fitting the protrusion 1c of the member 1 and fitting the protrusion 32 to the receiving part 2c of the female plate member 2, the thickness of the core-type hollow panel can be doubled (see FIG. 24B). . Also, a plurality of core type hollow panel parts are prepared, the protruding part 32 and the receiving part 32 are fitted, the core type hollow panel parts are stacked, and the stacked core type hollow panel parts are male. By fitting the plate member 1 and the female plate member 2, the thickness of the core-type hollow panel can be further increased.

(Embodiment 5) The core-type hollow panel component of Embodiment 5 is a component for increasing the thickness of the corner core-type hollow panel shown in Embodiment 2. As shown in FIG. 26, this core-type hollow panel component is different from the core-type hollow panel component of the fourth embodiment only in that the protruding portion 32 has a missing portion 34 that is missing by one line. Other configurations are the same as those of the core-type hollow panel component according to the fourth embodiment, and the same components are denoted by the same reference numerals and detailed description thereof is omitted.

As shown in FIG. 26, the core-type hollow panel component can be bent at a right angle toward the missing portion 34 along the cuts 31a and 31b close to the missing portion 34. The core-type hollow panel component bent in this manner is arranged between the male plate member 11 and the female plate member 12 in the corner core-type hollow panel of the second embodiment shown in FIG. The thickness of the core-type hollow panel for the corner of the second embodiment can be increased by fitting to 2c and fitting the receiving portion 33 to the protruding portion 1c.

As a modification of the fifth embodiment, as shown in FIG. 27, the core-type hollow panel component having the missing portion 35 in which the receiving portion 33 side is missing by one line is also the thickness of the core-type hollow panel for the corner. It can be used as a part for increasing. That is, this part can be similarly used as a part for increasing the thickness of the core-type hollow panel for corners shown in the third embodiment (see FIGS. 19 and 20).

<Embodiment of the core type hollow panel component of the second invention>

(Embodiment 6) The core-type hollow panel component of Embodiment 6 is for processing the edge of the core-type hollow panel of Embodiment 1. This core type hollow panel component is integrally molded from a plastic material, and as shown in FIGS. 28 and 29, a small band part 41 in which a belt-like plate material is bent in an L shape, and an inner surface side of the small band part 41 In other words, the forehead convex portions 42 are arranged in a row and project in the thickness direction. As for the fore edge convex part 42, a square frame slightly larger than the receiving part 2c (see FIG. 10) of the female plate member 2 related to the core type hollow panel of the first embodiment is suspended in the thickness direction of the fore edge belt part 41. It is set as the structure which can be fitted with the receiving part 2c of the female-plate member 2. FIG. On the other hand, the outer side surface of the fore edge belt portion 41 is a smooth surface without unevenness.

As shown in FIG. 30, this core type hollow panel component is arranged between the male plate member 1 and the female plate member 2 of the core type hollow panel of the first embodiment so that the structure inside the fore edge cannot be seen. can do. That is, as shown in FIG. 30, this core-type hollow panel component is disposed between the male plate member 1 and the female plate member 2 according to the core-type hollow panel of the first embodiment (see FIG. 30A). By fitting the portion 42 with the receiving portion 2c of the female plate member 2 (see FIG. 30B) and further fitting the protruding portion 1c of the male plate member 1 with the receiving portion 2c, the fore edge portion is smooth when viewed from the outside. It is possible to make the surface invisible (see FIG. 30C). In this way, it is possible to perform the edge processing using the core type hollow panel component of the sixth embodiment.

The core-type hollow panel and the core-type hollow panel component of the present invention can be used as components of industrial design moldings in various industrial fields such as architectural interior / exterior materials, joinery, furniture, children's playground equipment, educational modeling materials, etc. .

It is a top view of the male plate member which concerns on the core type hollow panel of Embodiment 1 and 3. FIG. It is a side view of the male plate member concerning the core type hollow panel of Embodiments 1 and 3. It is a top view of the female plate member which concerns on the core type hollow panel of Embodiment 1 and 2. It is a side view of the female plate member which concerns on the core-type hollow panel of Embodiment 1 and 2. 3 is a partially enlarged plan view of a male plate member according to the core-type hollow panel of Embodiment 1. FIG. It is a partially expanded side view of the male plate member which concerns on the core type hollow panel of Embodiment 1. FIG. 3 is a partially enlarged plan view of a female plate member according to the core type hollow panel of Embodiment 1. FIG. It is a partially expanded side view of the female plate member which concerns on the core type hollow panel of Embodiment 1. FIG. 8 is a cross-sectional view taken along the line aa ′ in FIG. 7. FIG. 3 is a partially enlarged perspective view illustrating a method for assembling the core-type hollow panel according to the first embodiment. 3 is a partially enlarged plan view of a male plate member according to the core-type hollow panel of Embodiment 1. FIG. It is a partially expanded side view of the male plate member which concerns on the core type hollow panel of Embodiment 1. FIG. 3 is a partially enlarged plan view of a female plate member according to the core type hollow panel of Embodiment 1. FIG. It is a partially expanded side view of the female plate member which concerns on the core type hollow panel of Embodiment 1. It is an expanded sectional view of the cut | notch part of the male plate member which concerns on Embodiment 1, and a female plate member. It is a side view before and behind bending of the male plate member concerning the core type hollow panel of Embodiment 2. It is a top view after the bending of the male plate member concerning the core type hollow panel of Embodiment 2. It is a side view which shows the assembly method of the core-type hollow panel of Embodiment 2. It is a side view before and behind the bending of the female-plate member which concerns on the core type hollow panel of Embodiment 3. It is a top view after the bending of the female-plate member which concerns on the core type hollow panel of Embodiment 3. 6 is a side view of a core-type hollow panel component of Embodiment 4. FIG. 6 is a plan view of a core-type hollow panel component of Embodiment 4. FIG. It is a bottom view of the core type hollow panel component of the fourth embodiment. It is a side view which shows the usage method of the components for core-type hollow panels of Embodiment 4. FIG. 6 is a partially enlarged perspective view showing a method for using the core-type hollow panel component of Embodiment 4. It is a side view before and behind bending of the core-type hollow panel part of Embodiment 5. It is a side view before and behind the bending of the modification of the components for core type | mold hollow panels of Embodiment 5. FIG. FIG. 10 is a plan view of a core-type hollow panel component according to Embodiment 6. It is a side view of the core type hollow panel component of the sixth embodiment. It is a perspective view which shows the usage method of the components for core-type hollow panels of Embodiment 6. It is a disassembled perspective view of the conventional core-type hollow panel.

Explanation of symbols

1, 11, 21, 31 Male plate member 1c, 11c, 32 Protruding portion 2, 12, 22, 32 Female plate member 2c, 33 Receiving portion 1b, 2b, 31b Notch 11a, 22a, 34, 35 Missing portion 41 Small edge Belt part 42

Claims (6)

A male plate member having a substantially plate shape and having protrusions of the same shape aligned and repeatedly formed on one side;
It comprises a female plate member that has a substantially plate shape and is repeatedly formed on one surface side so that a receiving portion that can be fitted to the protruding portion of the male plate member is aligned with a position that matches each protruding portion,
The protruding portion of the male plate member and the receiving portion of the female plate member are detachably fitted,
The male plate member and the female plate member are integrally molded from a plastic material ,
The protruding portion of the male plate member has a structure in which two rectangular plates intersecting each other at the center so as to have an X-shaped cross section are suspended in the thickness direction of the male plate member,
The receiving portion of the female plate member has a structure in which a square frame that can be fitted to the projecting portion of the male plate member is suspended in the thickness direction of the female plate member. Hollow panel. Between the projecting portions of the male plate member, a cut reaching from the one end side to the other end side of the male plate member is provided vertically and horizontally,
2. The core-type hollow panel according to claim 1, wherein notches extending from one end side to the other end side of the female plate member are provided vertically and horizontally between the receiving portions of the female plate member.   It is characterized by having a missing portion in which one row of either the protruding portion that is repeatedly formed in alignment with the male plate member or the receiving portion that is repeatedly formed in alignment with the female plate member is missing. The core-type hollow panel according to claim 1 or 2.   It has a substantially plate shape, and the same shape of protrusions is repeatedly formed on one side, and a receiving part to which a member having the same shape as the protrusion can be fitted is provided on the other side. A core-type hollow panel component that is repeatedly formed by being aligned at a position that matches the position, and is integrally molded from a plastic material.   5. The indented portion in which one row of either the protruding portion or the receiving portion is missing, and a notch that can be bent along the missing portion is provided. Core hollow panel parts. A male plate member that has a substantially plate shape and is repeatedly formed by aligning and projecting the same shape on one side, and a substantially plate shape that can be fitted to the projection of the male plate member on one side. The receiving part is formed of a female plate member that is repeatedly formed in alignment with the respective protruding parts, and the protruding part of the male plate member and the receiving part of the female plate member are detachable. The male plate member and the female plate member are core type hollow panel parts used for a core type hollow panel integrally molded from a plastic material,
The belt-shaped plate material is composed of a small-mouthed belt portion bent in an L shape, and a small-mouthed convex portion that is aligned in a row on one surface side of the small-mouthed belt portion and protrudes in the thickness direction.
The fore edge convex portion is fitted into a fitting portion in which the protruding portion and the receiving portion of the core type hollow panel are fitted, so that the fore edge of the core type hollow panel can be shielded by the fore edge belt portion. A core-type hollow panel component that is integrally molded from a plastic material.

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