JP2018062092A - Honeycomb core - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a honeycomb core using a hard member with thickness, having strength, and easy to be designed and manufactured.SOLUTION: There is provided a honeycomb core 1 manufactured by laminating a unit 3 of a honeycomb structure as a plurality of layers and binding them, where the unit 3 is constituted by a plurality of plates 6A to 6L, 7A to 7L, 8A to 8L as the honeycomb structure. There is provided a honeycomb core 1 in which 3 of the plates 6A to 6L, 7A to 7L and 8A to 8L are arranged radially with intervals each other in corner parts 9A to 9F of each cell 2 constituting the unit 3 in the unit 3 of the honeycomb structure.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a honeycomb core.

In the natural world, it is well known that honeycomb structures found in honeycombs, insect compound eyes, columnar joints of basalt, etc. are strong structures. Industrially, the honeycomb structure is often used when a lightweight and strong structural member is required. For example, a honeycomb core, which is a structure having a honeycomb structure made of an aluminum alloy, is used for the wall surface of an aircraft or a railway train.
Patent Document 1 discloses a honeycomb core 102 of a moisture-proof seal material used for automobile interior parts and the like as shown in FIG. The honeycomb core 102 is composed of a strip 105 formed of a material such as a cellulose material. The strips 105 are manufactured by extending in the longitudinal direction along each other and partially attached to each other, and then being pulled away in a direction perpendicular to the surface of the strip 105. A honeycomb core 102 is bonded between two cover plates 103 and 104 to form a honeycomb panel 101.
Patent Document 2 discloses a honeycomb panel used for a structural member of a house or building, a wall / floor material, a partition, or the like. The honeycomb structure provided in the present honeycomb panel is formed by forming a honeycomb block by laminating a plurality of foils, for example, aluminum foil, of a honeycomb material cut into a strip shape, and bonding the foils at an adhesive portion provided at a predetermined interval. The honeycomb block is manufactured by extending in the lateral direction.
Thus, the honeycomb core is often manufactured by deforming a relatively thin member.

On the other hand, for example, when a honeycomb core is used as a structure of a building structure, each cell constituting the honeycomb core is enlarged, and each of the parts required for the construction of the honeycomb core is provided with a corresponding thickness. Therefore, the honeycomb core cannot be manufactured by deforming a thin part as described above. Therefore, it is necessary to design the honeycomb core so as to be divided into a plurality of component parts, and assemble and join the manufactured component parts to manufacture the honeycomb core.
However, since the honeycomb core has a complicated shape, it is not easy to divide the honeycomb core into component parts. For example, when dividing into components easily at the corners of each cell, a specially shaped shape is used to strengthen the bonding and transmit sufficient stress between the components in the bonding between the divided components. Joining hardware is required. Also, depending on the particularity of the shape of the joint hardware, the component parts may have to be assembled in a complicated procedure. For these reasons, it is difficult to design and manufacture a honeycomb core.

Japanese National Patent Publication No. 11-502787 JP 2009-2575 A

  The problem to be solved by the present invention is to provide a honeycomb core that is strong and easy to design and manufacture using a thick, hard member.

The present invention employs the following means in order to solve the above problems. That is, the present invention is a honeycomb core in which a plurality of plate members are configured in a honeycomb structure as one unit, and the one unit of the honeycomb structure is stacked and bonded in a plurality of stages, and in the one unit of the honeycomb structure, In the corner of each cell constituting the unit, the three plate members are provided radially at intervals, and one of the units in the plurality of stages is provided at the corner. The one plate member provided at the corner of the plate member and the other unit adjacent to the one unit and extending in a direction different from the one plate member of the one unit is the one unit. The other plate members extending in the direction different from the one plate member from the corner portion in each of the one unit and the other unit are stacked by the tightening members extending in the stacking direction. Before adjoining in direction Is joined to the plate material, and / or, in the one plate of the same said one unit, providing a honeycomb core are joined at the corners.
Hereinafter, a combination of plate materials in a state in which hexagonal cylinders (cells) composed of plate materials are arranged in a honeycomb shape is referred to as a honeycomb structure, and a structure including the honeycomb structure as a structure is referred to as a honeycomb core.
According to the configuration as described above, one unit of the honeycomb structure is provided at the corner of one unit in the plurality of stages, although the unit is stacked and bonded in a plurality of stages. One plate that is provided at the corner of one plate and another unit adjacent to one unit and extends in a direction different from that of one plate of one unit extends in the direction of stacking one unit Because of the tightening by the tightening member, joining between the units, that is, between the respective stages, is firmly performed by tightening between the single plate members.
Further, in each of the one unit and the other unit, the other plate material extending in the direction different from the one plate material from the corner is joined to the adjacent plate material in the stacking direction and / or the same one unit. By joining to one board | plate material in a corner | angular part, the joining between one board | plate material is made still stronger.
The above is synergistic, and it is possible to realize a strong honeycomb core using a hard and non-deformable member that can be applied even when the cells constituting the honeycomb core are large, for example.
In addition, since the joining between one plate material located in different units is fastened by a fastening member that fastens the one plate material, such as a through bolt, for example, a special shape is used in joining parts. Bonding hardware is basically unnecessary and can be easily manufactured. That is, it is possible to easily design and manufacture a strong honeycomb core as described above.

In another aspect of the present invention, the other plate material has a shape cut along the side surface of the same unit of the one plate material at the corner portion.
According to the above configuration, the other member has a shape cut along the side surface of one plate material of the same unit, so that it closely contacts the one plate material on the cut surface. And it is fit to form a corner. That is, the other members can be manufactured by an easy method such as cutting a part of the plate material, and thus the honeycomb core can be easily manufactured.

In another aspect, the one plate member provided at the corner of the unit adjacent to the other unit on a side different from the one unit is fastened by the fastening member, and The one plate member of one unit and the one plate member of the other unit extend in different directions.
According to the above configuration, one unit, another unit, and a unit adjacent to the other unit, each unit stacked in three stages, are fastened by the fastening members at the corners. These members extend in three different directions. That is, each of the six wall portions of each cell of the honeycomb core includes at least one member tightened by the tightening member in any one unit constituting each wall portion. In addition, the honeycomb core structure can be further strengthened.

In another aspect, a portion of each of the one plate member located in the corner is provided with a hole penetrating in the stacking direction, the fastening member is a through bolt, and the unit and The one plate member of each of the other units is positioned at the corner so that the holes communicate with each other, and is fastened by the through bolts inserted into the holes.
According to the above configuration, in joining parts, a specially shaped joint hardware is basically unnecessary, and through bolts that are popular general-purpose products are used. Is easy. Therefore, it is possible to easily manufacture a strong honeycomb core at a reduced cost.

In another aspect, the one unit of the honeycomb structure is stacked in four or more stages, and is tightened by the tightening member of the one unit located at a distance of two units from the one unit. The one plate material extended in the same direction as the one plate material of the one unit.
According to the configuration as described above, for example, one unit positioned in the first stage, one plate member fastened by the fastening member, and an interval corresponding to two units from this one unit, for example, four stages One plate member fastened by the tightening member located in the eye extends in the same direction, and therefore is located between these plate members, that is, located in the second and third steps. The plate material is sandwiched between one plate material of the first stage and the fourth stage and is firmly tightened. Thereby, even if the plate member sandwiched between these one plate members is another member that is not tightened by the tightening member, these other members sandwiched with the adjacent plate member in the stacking direction. It is firmly fixed not only by joining but also by tightening force between one member. Therefore, the honeycomb core structure can be further strengthened.

Further, the present invention is a honeycomb core formed by forming a plurality of plate members in a honeycomb structure, and at the corners of each cell constituting the honeycomb structure, the three plate members are radially spaced from each other. Protrusions protruding in the length direction are formed at positions different from each other in the width direction on each of the three plate members provided at the corners, and the protrusions of each of the three plate materials are Provided is a honeycomb core in which the corner portions are formed by being tightened by tightening members that are overlapped with each other in the width direction and extend in the width direction.
According to the above configuration, at the corners of each cell, the three plate members are provided radially at intervals, and the convex portions of the three plate members are overlapped with each other in the width direction by the tightening member. Since it is tightened, the plate members are firmly joined at the corners. Thereby, it is possible to realize a strong honeycomb core using a hard and non-deformable member that can be applied even when the cells constituting the honeycomb core are large, for example.
In addition, since the convex portions of the three plate members provided radially at the corner portions are tightened by tightening members extending in the width direction, such as through bolts, for example, In joining, a specially shaped joining hardware is basically unnecessary, and manufacture is also easy. That is, it is possible to easily design and manufacture a strong honeycomb core as described above.

In one aspect of the present invention, each of the three plate members is provided with a hole penetrating in the width direction in the convex portion, the fastening member is a through bolt, and each of the three plate members is The corner portions are tightened by through bolts inserted through the holes of the convex portions that are overlapped with each other in the width direction.
According to the above configuration, in joining parts, a specially shaped joint hardware is basically unnecessary, and through bolts that are popular general-purpose products are used. Is easy. Therefore, it is possible to easily manufacture a strong honeycomb core at a reduced cost.

In another aspect, the plurality of cells are formed along a virtual curved surface.
According to the above configuration, a curved honeycomb core can be realized.

  According to the present invention, it is possible to provide a honeycomb core that is strong and easy to design and manufacture using a thick, hard member.

It is a perspective view of the honeycomb core in the embodiment of the present invention. It is the elements on larger scale of FIG. It is a perspective view of (a) skeleton member, (b) 1st interpolation board material, and (c) 2nd interpolation board material which constitute a honeycomb core in the embodiment. It is an expansion perspective view of the corner | angular part of the honeycomb core in the said embodiment. It is a disassembled perspective view of the honeycomb core in the said embodiment. (A) is the elements on larger scale of FIG. 1, (b) is a perspective view of an outer periphery interpolation member. It is the elements on larger scale of the honeycomb core in the 2nd modification of the said embodiment. It is the elements on larger scale of the honeycomb core in the 3rd modification of the said embodiment. It is a disassembled perspective view of the honeycomb core in the 3rd modification of the said embodiment. It is a perspective view of the honeycomb core in the 4th modification of the embodiment. It is explanatory drawing of the conventional honeycomb core.

    Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Hereinafter, a combination of plate materials in a state in which hexagonal cylinders (cells) composed of plate materials are arranged in a honeycomb shape is referred to as a honeycomb structure, and a structure including the honeycomb structure as a structure is referred to as a honeycomb core.

FIG. 1 is a perspective view of a honeycomb core 1 in an embodiment of the present invention. The honeycomb core 1 includes a plurality of hexagonal cylindrical cells 2 each having a hexagonal columnar internal space S formed by six wall portions 5 formed by combining a plurality of plate members 6, 7, and 8. The cells 2 are arranged without gaps so that the cells 2 share the same wall portion 5.
As shown in FIG. 1, when the honeycomb core 1 is installed so that the wall portions 5 of the cells 2 constituting the honeycomb core 1 are positioned along the vertical direction, the wall portions 5 are arranged in the vertical direction in the vertical direction. It is formed by stacking a plurality of plate members 6, 7, and 8 having the same length. In all the cells 2, the wall 5 is formed in the same manner. Therefore, the honeycomb core 1 is formed in a honeycomb structure by arranging a plurality of plate members 6, 7, 8 in a horizontal plane perpendicular to the vertical direction. One unit 3 (3A, 3B, 3C, 3D) is formed, and the unit 3 (3A, 3B, 3C, 3D) of this honeycomb structure is stacked and joined in a plurality of stages.
Here, in the present embodiment, the unit 3 of the honeycomb structure is the first unit 3A of the first stage from the uppermost one unit 3A in the downward direction, the unit 3B of the second stage, and the unit 3C of the third stage. A unit 3D in the fourth stage is stacked over four stages.
In the present embodiment, the honeycomb core 1 is stored inside the rectangular outer frame 4. An outer periphery interpolation member 10 described later is sandwiched between the outermost periphery of the honeycomb core 1 and the inner side of the outer frame 4, and the honeycomb core 1 is fixed to the outer frame 4 by the outer periphery interpolation member 10.

FIG. 2 is an enlarged view of a portion indicated by an arrow A in FIG. In this figure, each wall portion 5 has a substantially horizontal direction W in FIG. 2, a direction X rotated about 120 ° counterclockwise in a horizontal plane with respect to the direction W, and a counterclockwise direction with respect to the direction X. Furthermore, it is provided along one of the three directions W, X, and Y, which is the direction Y that is rotated by approximately 120 °.
In the honeycomb core 1, four one units 3 (3A, 3B, 3C, 3D) are stacked in a direction (stacking direction) Z orthogonal to a horizontal plane formed by three directions W, X, and Y.
The plate members 6, 7, and 8 constituting the honeycomb core 1 are a skeleton plate member (one plate member) 6 (6A to 6L), a first interpolation plate member (other plate members) 7 (7A to 7L), and a second interpolation plate member. (Other plate material) 8 (8A to 8L) is provided. In FIG. 2 and FIGS. 4 and 5 described later, the skeleton plate 6 is shown with a pattern.

  FIGS. 3A, 3 </ b> B, and 3 </ b> C are perspective views of the skeleton plate material 6, the first interpolation plate material 7, and the second interpolation plate material 8. In each of these drawings, the plate members 6, 7, and 8 are such that the length direction, the width direction, and the thickness direction that are orthogonal to each other coincide with the directions X1, Z1, and Y1, respectively, that is, the width direction is in the vertical direction. It is drawn in an upright position. In this state, two surfaces parallel to the plane formed by the length direction X1 and the width direction Z1 are the two surfaces parallel to the plane formed by the side surfaces 6a, 7a, 8a and the length direction X1 and the thickness direction Y1. Of these, the upper surface is referred to as the upper surface 6b, 7b, 8b, and the lower surface (not shown) is referred to as the lower surface.

The skeleton plate material 6 is a substantially rectangular parallelepiped plate material. In this embodiment, the skeleton board | plate material 6 is wooden.
Each of the two side surfaces 6a facing the opposite sides of the skeleton plate 6 forms a hexagonal cylindrical inner surface of each cell 2 as described later. An end side of each side surface 6a extending in the width direction Z1 is referred to as a joining end side 6g.
On the upper surface 6b and the lower surface of the skeleton plate material 6, through holes (holes) 6e penetrating from the upper surface 6b to the lower surface along the width direction Z1 are provided in the vicinity of both ends in the length direction X1. Further, a plurality of dowel holes 6f are provided between the two through holes 6e on each of the upper surface 6b and the lower surface of the skeleton plate material 6.
The surface of both ends in the length direction X1 of the skeleton plate material 6 is provided so as to be opened at an angle of about 120 ° to each other, and a first slope 6c located on the left side with respect to the center of the thickness direction Y1, A second slope 6d is provided on the right side. Thereby, the surface of the both ends in the length direction X1 is formed so that it may become gradually depressed inside the length direction X1 toward the center from the both ends of the thickness direction Y1. An internal angle α between each of the two side surfaces 6a and the first and second inclined surfaces 6c and 6d is approximately 60 °.
The skeleton plate material 6 is formed so that the ratio of the width in the width direction Z1 to the thickness in the thickness direction Y1 is approximately 2: 1.

In the present embodiment, the first and second interpolation plate members 7 and 8 are also made of wood in the same manner as the skeleton plate member 6. The second interpolation plate material 8 has the same shape as the first interpolation plate material 7 shown in FIG. 3B, and as shown in FIG. 3C, the first interpolation plate material 7 is moved around the axis X1. The shape is rotated 180 °.
Each of the two side surfaces 7a, 8a facing the opposite sides of the first and second interpolation plate members 7, 8 forms a hexagonal cylindrical inner surface of each cell 2, as will be described later, like the skeleton plate member 6. To do.
A plurality of dowel holes 7f and 8f are provided at positions corresponding to the dowel holes 6f of the skeleton plate material 6 on the upper surfaces 7b and 8b and the lower surface of the first and second interpolation plate materials 7 and 8, respectively.
The surfaces of both ends of the first and second interpolation plate members 7 and 8 in the length direction X1 are two side surfaces 7a positioned on opposite sides so that the shapes of the upper surfaces 7b and 8b and the lower surface are substantially parallelograms. , 8a are inclined surfaces 7c and 8c provided with an acute angle β and an obtuse angle γ of approximately 60 ° and approximately 120 °, respectively. Edges extending in the width direction Z1 on the side where the obtuse angle γ is formed by the side faces 7a, 8a and the inclined faces 7c, 8c of the side faces 7a, 8a are referred to as joining end edges 7g, 8g.
As will be described later, the first and second interpolation plate members 7 and 8 are provided in the corner portion 9 so that the inclined surfaces 7c and 8c are opposed to and contact the side surface 6a of the skeleton plate member 6. That is, the first and second interpolating plate members 7 and 8 (other members) are provided with the inclined surfaces 7c and 8c, so that the corner portion 9 has the same unit 3 skeleton plate member 6 (one plate member) on the side surface 6a. It has a shape that is cut along the line.
The length in the length direction X1 of the side surfaces 7a, 8a of the first and second interpolation plate materials 7, 8 is twice the width L of the inclined surfaces 7c, 8c than the length in the length direction X1 of the side surface 6a of the skeleton plate material 6. It is formed so as to be shorter by an amount.
The ratio of the width in the width direction Z <b> 1 and the thickness in the thickness direction Y <b> 1 of the first and second interpolation plate materials 7 and 8 is formed to be equal to that of the skeleton plate material 6.

Returning to FIG. 2, the first unit 3A of the first stage of the honeycomb core 1 is within the range shown in FIG. 2, the skeleton plate materials 6A, 6B, 6C, the first interpolation plate materials 7A, 7B, 7C, and the second interpolation plate material. 8A, 8B, 8C are provided. In the first unit 3A, the skeleton plate materials 6A, 6B, and 6C are arranged such that the length direction X1 and the width direction Z1 shown in FIG. Is provided. The first interpolation plate members 7A, 7B, and 7C are provided so that the length direction X1 thereof coincides with the direction X and the width direction Z1 thereof coincides with the direction Z, respectively. The second interpolation plate members 8A, 8B, and 8C are provided such that each length direction X1 coincides with the direction Y and the width direction Z1 coincides with the direction Z. Thereby, it is provided so that the board | plate material of the same kind may become parallel. That is, the skeleton plate material 6B and the skeleton plate material 6C, the first interpolation plate material 7A and the first interpolation plate material 7C, and the second interpolation plate material 8A and the second interpolation plate material 8B are provided in parallel, and the side surfaces 6a, 7a, 8a are provided in parallel. Are arranged so as to face each other, whereby one cell 2 is formed.
The corners 9A to 9F in the hexagonal cylinder shape of each cell 2 are thus formed by providing the plate members 6B, 6C, 7A, 7C, 8A, and 8B at an angle.

  In FIG. 2, the plate members 6, 7, 8 connected from the cell 2 in the right direction, the left front direction, and the left depth direction are not shown for the sake of simplicity. For example, in the corner portion 9F, a skeletal plate material 6 (not shown) extending in the direction W is symmetrical to the skeleton plate material 6A between the inclined surfaces of the first interpolation plate material 7C and the second interpolation plate material 8B facing each other. It is provided with a simple structure. Further, in the corner portion 9B, a second interpolation plate member 8 (not shown) extending in the direction Y is provided in a symmetric structure with the second interpolation plate member 8C in the left front direction of the skeleton plate member 6B. Further, in the corner portion 9C, a first interpolation plate member 7 (not shown) extending in the direction X is provided in the left depth direction of the skeleton plate member 6C in a structure symmetrical to the first interpolation plate member 7B. The same applies to the units 2B, 3C, and 3D in the second to fourth stages of the cell 2, which will be described later.

In the first unit 3A in the first stage of the honeycomb structure, three plate members 6, 7, and 8 are provided radially at intervals in the corners 9A to 9F of each cell 2. Hereinafter, the structure of the corner 9 will be described with reference to FIGS. 2 and 3.
For example, with respect to the corner portion 9A, the first interpolation plate 7A is located near the joining edge 6g shown in FIG. 3A of the side surface 6a located on the front side of the paper surface of the skeleton plate 6A. ) Is provided so that the sloped surface 7c shown in contact with the side surface 6a is opposed to the side surface 6a, and the joined edge side 6g of the skeleton plate material 6A and the joined edge side 7g of the first interpolation plate material 7A are located on the same straight line. ing. As described above, in the skeleton plate material 6, the inner angle α formed by the side surface 6a and the first inclined surface 6c is approximately 60 °, and in the first interpolation plate material 7, the side surface 7a and the inclined surface 7c on the joining end side 7g side. The formed inner angle γ is approximately 120 °. Therefore, the first slope 6c of the skeleton plate 6A and the side surface 7a on the inner space S side of the first interpolation plate 7A form a continuous plane.
In the vicinity of the joining edge 6g shown in FIG. 3A of the side surface 6a located on the back side of the skeleton plate material 6A, the second interpolation plate material 8A has a slope 8c shown in FIG. 3C. It is provided so as to be opposed to and in contact with the side surface 6a, and so that the joint end side 6g of the skeleton plate member 6A and the joint end side 8g of the second interpolation plate member 8A are located on the same straight line. As in the case of the first interpolation plate 7A, the second slope 6d of the skeleton plate 6A and the side surface 8a on the inner space S side of the second interpolation plate 8A form a continuous plane.
As described with reference to FIG. 3A, the first slope 6c and the second slope 6d are formed so as to open at an angle of about 120 °, and thus the first slope 6c of the skeleton plate 6A. And the plane formed by the side surface 7a on the inner space S side of the first interpolation plate member 7A, the plane formed by the second inclined surface 6d of the skeleton plate member 6A and the side surface 8a on the inner space S side of the second interpolation plate member 8A, It faces the internal space S and is formed so as to open at an angle of about 120 °.

Regarding the corner portion 9B, the skeleton plate member 6B located on the opposite side of the skeleton plate member 6A across the first interpolation plate member 7A has a side surface 6a on the inner space S side that is the corner portion 9A of the first interpolation plate member 7A. Provided so as to be opposed to and in contact with the slope 7c on the opposite side, and so that the joining edge 6g of the skeleton plate 6B and the joining edge 7g on the corner 9B side of the first interpolation plate 7A are located on the same straight line. It has been. In the first interpolating plate member 7, the inner angle β formed by the side surface 7a and the inclined surface 7c at the end opposite to the joining end side 7g of the inclined surface 7c is approximately 60 °, and therefore the internal space S of the skeleton plate material 6B. The side surface 6a on the side and the side surface 7a on the inner space S side of the first interpolation plate 7A are formed so as to open at an angle of about 120 °.
Regarding the corner portion 9C, symmetrically to the corner portion 9B, the skeleton plate material 6C located on the opposite side of the skeleton plate material 6A across the second interpolation plate material 8A is the second interpolation on the side surface 6a on the inner space S side. The joint edge 6g of the skeleton plate 6C and the joint edge 8g on the corner 9C side of the second interpolating plate 8A are the same straight so as to face and contact the inclined surface 8c opposite to the corner 9A of the plate 8A. It is provided so that it may be located on a line. In the second interpolating plate member 8, the inner angle β formed by the side surface 8a and the inclined surface 8c at the end opposite to the joining end side 8g of the inclined surface 8c is approximately 60 °, and therefore the internal space S of the skeleton plate material 6C. The side surface 6a on the side and the side surface 8a on the internal space S side of the second interpolation plate 8A are formed so as to open at an angle of about 120 °.
As described above, in the corner portion 9B, the second interpolation plate material 8 (not shown) is provided on the side surface 6a opposite to the internal space S of the skeleton plate material 6B. Further, in the corner portion 9C, a first interpolation plate member 7 (not shown) is provided on the side surface 6a opposite to the internal space S of the skeleton plate member 6C.

The corner portions 9D and 9E are respectively similar to the corner portion 9A with respect to the opposite side edges of the skeleton plate material 6B and the skeleton plate material 6C in the length direction X1 from the corner portions 9B and 9C, respectively. The second interpolation plate members 7B and 8B and the first and second interpolation plate members 7C and 8C are provided. The side surface 6a on the inner space S side of the skeleton plate material 6B, the side surface 8a on the inner space S side of the second interpolation plate material 8B, the side surface 6a on the inner space S side of the skeleton plate material 6C, and the inner space S side of the first interpolation plate material 7C. The side surface 7a is formed so as to open at an angle of about 120 ° for the same reason as described in the corner portions 9B and 9C.
Regarding the corner portion 9F, the skeleton plate material 6 (not shown) extends to the opposite side of the internal space S in the same manner as the corner portions 9B and 9C with respect to the first interpolation plate material 7C and the second interpolation plate material 8B. Are joined together. A plane formed by the first slope 6c of the skeletal plate 6 (not shown) and the side surface 7a on the inner space S side of the first interpolation plate 7C, and a second slope 6d of the skeletal plate 6 (not shown) and the internal space of the second interpolation plate 8B. The plane formed by the side surface 8a on the S side is formed so as to open at an angle of approximately 120 ° for the same reason as described in the corner portion 9A.

  Thus, the plane formed by the first slope 6c of the skeleton plate 6A and the side surface 7a on the inner space S side of the first interpolation plate 7A, the second slope 6d of the skeleton plate 6A, and the inner space S of the second interpolation plate 8A. The plane formed by the side surface 8a on the side, the side surface 6a on the inner space S side of the skeleton plate material 6B, the side surface 6a on the inner space S side of the skeleton plate material 6C, the first slope 6c of the skeleton plate material 6 and the first interpolation plate material 7C not shown. The plane formed by the side surface 7a on the inner space S side, and the plane formed by the second slope 6d of the skeleton plate material 6 (not shown) and the side surface 8a on the inner space S side of the second interpolation plate material 8B, a total of six A wall surface of the hexagonal columnar internal space S is formed by the flat surface.

In the range shown in FIG. 2, the second unit 1B of the honeycomb core 1 is a skeleton plate material 6D, 6E, 6F, a first interpolation plate material 7D, 7E, 7F, and a second interpolation plate material 8D, 8E, 8F. It has. The unit 3B in the second stage has a structure that coincides with the structure of the unit 3A in the first stage rotated 120 ° counterclockwise in the horizontal plane. That is, in the second unit 3B, the skeleton plate materials 6D, 6E, and 6F have the length direction X1 in the direction X, and the first interpolation plate materials 7D, 7E, and 7F have the length direction X1. The second interpolation plate members 8D, 8E, and 8F are provided in the direction Y so that the length directions X1 thereof coincide with the direction W, respectively.
In this way, in the second unit 1B, the skeleton plate material (one plate material) 6 is provided so as to extend in a different direction from the skeleton plate material 6 of the first unit 3A.
The side surfaces 6a, 7a, 8a of the skeletal plate materials 6D, 6E, 6F, the first interpolation plate materials 7D, 7E, 7F, and the second interpolation plate materials 8D, 8E, 8F are adjacent to each other in the direction Z. It is provided so as to form a continuous plane with the side surfaces 6a, 7a, 8a of the plate members 6, 7, 8 of the unit 3A.
Also, the corner portion 9 is configured in the same manner as the first unit 3A in the second unit 1B.
Thereby, the plane formed by the first slope 6c of the skeleton plate 6E and the side surface 7a on the inner space S side of the first interpolation plate 7E, the second slope 6d of the skeleton plate 6E and the inner space S side of the second interpolation plate 8E. A plane formed by the side surface 8a, a side surface 6a on the inner space S side of the skeleton plate material 6D, a side surface 6a on the inner space S side of the skeleton plate material 6F, and a skeleton plate material 6 (not shown) located on the left back side in FIG. The plane formed by the first slope 6c and the side surface 7a on the inner space S side of the first interpolation plate 7D, and the side surface on the inner space S side of the second slope 6d of the skeleton plate 6 and the second interpolation plate 8F (not shown). The wall surface of the hexagonal columnar internal space S is formed by a total of six planes formed by 8a.

In the range shown in FIG. 2, the first unit 3C of the third stage of the honeycomb core 1 is a skeleton plate material 6G, 6H, 6I, a first interpolation plate material 7G, 7H, 7I, and a second interpolation plate material 8G, 8H, 8I. It has. The unit 3C in the third stage has a structure that coincides with the structure of the unit 3B in the second stage rotated 120 ° counterclockwise in the horizontal plane. That is, in one unit 3C of the third stage, the skeleton plate materials 6G, 6H, and 6I have their length directions X1 in the direction Y, and the first interpolation plate materials 7G, 7H, and 7I have their length directions X1. The second interpolation plate members 8G, 8H, and 8I are provided in the direction W so that the length directions X1 thereof coincide with the direction X, respectively.
In this way, in the third stage unit 3C, the skeleton plate material (one plate material) 6 extends in a different direction from the first stage unit 3A and the second stage unit 3B. It is provided to do.
The side surfaces 6a, 7a, 8a of the skeleton plate materials 6G, 6H, 6I, the first interpolation plate materials 7G, 7H, 7I, and the second interpolation plate materials 8G, 8H, 8I It is provided so as to form a continuous plane with the side surfaces 6a, 7a, 8a of the plate members 6, 7, 8 of the unit 3B.
Further, the corner portion 9 is configured in the same manner as the first unit 3A in the third unit 1C.
Thereby, the plane formed by the first slope 6c of the skeleton plate 6I and the side surface 7a on the inner space S side of the first interpolation plate 7I, the second slope 6d of the skeleton plate 6I and the inner space S side of the second interpolation plate 8I. The plane formed by the side surface 8a, the side surface 6a on the inner space S side of the skeleton plate material 6G, the side surface 6a on the inner space S side of the skeleton plate material 6H, and the skeleton plate material 6 (not shown) located on the left front side in FIG. A plane formed by the first slope 6c and the side surface 7a on the inner space S side of the first interpolation plate 7H, and a side surface 8a on the inner space S side of the second slope 6d of the skeleton plate 6 and the second interpolation plate 8G not shown. The wall surface of the hexagonal columnar internal space S is formed by a total of six planes formed by the above.

The unit 3D of the fourth stage of the honeycomb core 1 is within the range shown in FIG. 2, the skeleton plate materials 6J, 6K, 6L, the first interpolation plate materials 7J, 7K, 7L, and the second interpolation plate materials 8J, 8K, 8L. It has. The unit 3D in the fourth stage has a structure that coincides with the unit 3A in the first stage obtained by rotating the structure of the unit 3C in the third stage by 120 ° counterclockwise in the horizontal plane. That is, in one unit 3D of the fourth stage, the skeleton plate materials 6J, 6K, and 6L have the length direction X1 in the direction W, and the first interpolation plate materials 7J, 7K, and 7L have the length direction X1. The second interpolation plate materials 8J, 8K, and 8L are provided in the direction X so that the length directions X1 thereof coincide with the direction Y, respectively.
As described above, in the first unit 3D of the fourth stage, the skeleton plate material (one plate material) 6 is provided so as to extend in the same direction as the skeleton plate material 6 of the first unit 3A.
The side surfaces 6a, 7a, 8a of each of the skeleton plate materials 6J, 6K, 6L, the first interpolation plate materials 7J, 7K, 7L, and the second interpolation plate materials 8J, 8K, 8L are adjacent to each other in the direction Z. It is provided so as to form a continuous plane with the side surfaces 6a, 7a, 8a of the plate members 6, 7, 8 of the unit 3C.
Further, the corner portion 9 is configured in the same manner as the first unit 1A.
Thereby, the plane formed by the first slope 6c of the skeleton plate 6J and the side surface 7a on the inner space S side of the first interpolation plate 7J, the second slope 6d of the skeleton plate 6J and the inner space S side of the second interpolation plate 8J. The side surface 8a of the skeleton plate material 6K, the side surface 6a of the skeleton plate material 6L on the inner space S side, the side surface 6a of the skeleton plate material 6L on the inner space S side, the second side of the skeleton plate material 6 (not shown) located on the right side in FIG. The plane formed by the side surface 7a on the inner space S side of the first slope 6c and the first interpolation plate member 7L, and the side surface 8a on the inner space S side of the second slope plate 6d and the second interpolation plate member 8K (not shown). The wall surface of the hexagonal columnar internal space S is formed by a total of six planes.

Next, the joining between the plate members 6, 7, and 8 in the honeycomb core 1 will be described. 4 is a perspective view of the corner portion 9A in FIG. 2 as viewed from the internal space S side. 5A and 5B are exploded perspective views in the vicinity of the corner portion 9A shown in FIG.
In the corner portion 9A of the unit 3A in the first stage, the first interpolation plate material 7A and the second interpolation plate material 8A are provided in contact with both side surfaces 6a of the skeleton plate material 6A. That is, center lines 6h, 7h, and 8h extending in the length direction X1 of each of the upper surfaces 6b, 7b, and 8b in FIG. 3 of the skeleton plate material 6A, the first interpolation plate material 7A, and the second interpolation plate material 8A. The skeleton plate material 6A is located at a portion where the crosses. Similarly, in the second stage, the third stage, and the fourth stage of the units 3B, 3C, and 3D, the skeleton plate materials 6D, 6G, and 6J are respectively positioned at the center O of the corner portion 9A. That is, at the center O of the corner portion 9A, the skeleton plate 6 is positioned at any position in the direction Z.
The through hole 6 e of the skeleton plate material 6 is provided at a position corresponding to the center O of the corner portion 9. Therefore, the through holes 6e of the skeleton plate members 6A, 6D, 6G, and 6J stacked over four stages communicate with each other.

As shown in FIG. 5, a through bolt (tightening member) 20 is inserted into the through-hole 6e of the skeleton plate members 6A, 6D, 6G, and 6J from below so as to extend in the direction Z in which the units 3 are stacked. The skeleton plate members 6A, 6D, 6G, and 6J are tightened by screwing the nuts 21 from above with the skeleton plate members 6A, 6D, 6G, and 6J interposed therebetween.
Further, the dowels 22 are embedded in the dowel holes 6f, 7f, and 8f provided on the upper surfaces 6b, 7b, and 8b of the skeleton plate material 6, the first interpolation plate material 7, and the second interpolation plate material 8, respectively. Are joined together. The upper half of the dowels 22 is adjacent to each of the skeleton plate materials 6, the first interpolation plate material 7, and the second interpolation plate material 8 stacked in the direction Z and adjacent to each other, the second interpolation plate material 7, the first interpolation plate material 7, and the second interpolation. Embedded in dowel holes formed in the lower surface of the plate material 8 corresponding to the dowel holes 6f, 7f, and 8f of the upper surfaces 6b, 7b, and 8b, the adjacent plate materials 6, 7, and 8 in the direction Z are mutually connected. It is joined.
In the present embodiment, the plate members 6, 7, and 8 provided in the first unit 1A of the first stage are formed with dowel holes 6f, 7f, and 8f formed only on the lower surface, Dowel holes 6f, 7f, and 8f are not formed in the upper surfaces 6b, 7b, and 8b exposed to the surface. Similarly, for each unit 3D of the fourth stage whose lower side is exposed to the outside, the plate members 6, 7, and 8 are used in which dowel holes 6f, 7f, and 8f are formed only on the upper surfaces 6b, 7b, and 8b. The dowel holes 6f, 7f, and 8f are not formed on the lower surface exposed to the outside.

Thus, the skeleton plate material (one plate material) 6 provided in the corner portion 9 of one unit 3 in the plurality of stages and the corner portion 9 of the other unit 3 adjacent to the one unit 3 are provided. The skeleton plate material (one plate material) 6 extending in a direction different from the skeleton plate material 6 of one unit 3 is fastened by a through bolt (tightening member) 20. For example, the skeleton plate material 6A provided in the corner 9A of the first unit 3A and the second unit 1B 3B adjacent to the first unit 3A are provided in the corner 9A, and the first unit 3A. A skeleton plate material 6 </ b> D extending in a direction different from the skeleton plate material 6 </ b> A is fastened by a through bolt (tightening member) 20.
Further, in each of the one unit 3 and the other unit 3, the first and second interpolation plate members (other plate members) 7 and 8 extending from the corner portion 9 in a direction different from the skeleton plate member 6 are stacked in the direction Z. Are joined to adjacent plate members 6, 7, 8. For example, in one unit 3A, the first interpolation plate 7A extending from the corner 9A in a direction different from the skeleton plate 6A is joined to the adjacent skeleton plate 6D in the stacking direction Z.
Further, the skeleton plate material 6 provided at the corner 9 of the unit 3 adjacent to the other unit 3 on the side different from the one unit 3 is fastened by a through bolt 20 and the skeleton of the one unit 3 The plate 6 and the skeleton plate 6 of the other unit 3 extend in different directions. For example, the skeleton plate material 6G provided in the corner portion 9A of the third unit 1C of the third stage adjacent to the other unit 3B on the side different from the one unit 3A is tightened by the through bolts 20 and The skeleton plate material 6A of the unit 3A and the skeleton plate material 6D of the other unit 3B extend in different directions Y.
Each of the skeleton plate members 6 is provided with a through-hole (hole) 6e penetrating in the stacking direction Z in the portion located at the corner 9, and each skeleton plate member of one unit 3 and the other unit 3. 6 is positioned in the corner portion 9 so that the through holes 6e communicate with each other, and is tightened by a through bolt 20 inserted through the through holes 6e. For example, the skeleton plate members 6A and 6D of one unit 3A and the other unit 3B are positioned so that the through holes 6e communicate with each other at the corners 9A, and the through-holes 6e are inserted into the through holes 6e. The bolt 20 is tightened.
Further, the skeleton plate material 6 of one unit 3 positioned by separating the two units 3 from the one unit 3 and fastened by the through bolts 20 extends in the same direction as the skeleton plate material 6 of the one unit 3. Yes. For example, the skeleton plate material 6J fastened by the through-bolt 20 of the first unit 3D in the fourth stage located between the one unit 3A and the two units 3B and 3C is the same as the skeleton plate material 6A of the one unit 3A. It extends in the direction W.
With the configuration as described above, the honeycomb core 1 is provided with the skeleton plate material 6 so as to extend in different directions at each corner 9 in the corner portion 9, and then firmly tightened to thereby form the skeleton plate material 6. Thus, the skeleton of the honeycomb core 1 is formed, and the first interpolation plate member 7 and the second interpolation plate member 8 are joined to the skeleton to further strengthen the skeleton.

  FIG. 6A is an enlarged view of a portion indicated by an arrow B in FIG. 1, and FIG. 6B is a perspective view of the outer periphery interpolation member 10. The outer periphery interpolation member 10 is joined to the corner portion 9 of the honeycomb core 1 so as to complement and connect with the inner surface of the outer frame 4. The honeycomb core 1 is supported on the outer frame 4 by the outer periphery interpolation member 10.

  Next, the effect of the honeycomb core 1 will be described.

According to the above configuration, the unit 3 of the honeycomb structure is stacked and combined in a plurality of stages, but the corner portions of the units 3A to 3D in the plurality of stages are combined. 9 (9A to 9F) is provided on the corner portion 9 (9A to 9F) of the skeleton plate material 6 (6A to 6L) provided on 9 (9A to 9F) and the other units 3A to 3D adjacent to one unit 3A to 3D. Through bolts extending in the direction Z in which the unit 3 is stacked, the frame plates 6 (6A to 6L) extending in the directions W, X and Y different from the frame plates 6 (6A to 6L) of the units 3A to 3D 20, the units 3, i.e., between the respective stages, are firmly joined by tightening between the skeleton plate materials 6 (6 </ b> A to 6 </ b> L).
Further, in each of the one unit 3A to 3D and the other unit 3A to 3D, the first and second interpolations extending from the corner portion 9 (9A to 9F) in a direction different from the skeleton plate 6 (6A to 6L). The plate members 7 (7A to 7L) and 8 (8A to 8L) are joined to the adjacent plate members 6 (6A to 6L), 7 (7A to 7L), and 8 (8A to 8L) in the stacking direction Z. The joint between the skeleton plate materials 6 (6A to 6L) is further strengthened.
Further, the corner portion 9 of each unit 3A to 3D stacked in three stages of one unit 3A to 3D, another unit 3A to 3D, and unit 3A to 3D adjacent to the other unit 3A to 3D. The skeleton plate 6 (6A to 6L) fastened by the through bolt 20 in (9A to 9F) extends in three different directions W, X, and Y. That is, each of the six wall portions 5 of each cell 2 of the honeycomb core 1 has at least one skeleton plate member 6 fastened by a through bolt 20 in any one unit 3 constituting each wall portion 5. (6A to 6L) are included.
Further, for example, one unit 3A located in the first stage, the skeleton plate members 6A, 6B, 6C fastened by the through bolts 20, and the two units 3B, 3C are separated from this one unit 3A, for example, four stages Since the skeleton plate members 6J, 6K, 6L of one unit 3D located in the eye and fastened by the through bolts 20 extend in the same direction W, they are positioned between these plate members 6, that is, in two stages. The first and second interpolating plate materials 7 and 8 located in the eye 3B and the third stage 3C are sandwiched between the first stage frame plates 6A, 6B and 6C and the fourth stage frame plates 6J, 6K and 6L, It is firmly tightened. As a result, the first and second interpolation plate members 7G, 7H, 7I, 8D, 8E, and 8F sandwiched between the skeleton plate members 6A, 6B, 6C, 6J, 6K, and 6L are tightened by the through bolts 20. At least, in addition to joining the adjacent skeleton plates 6A, 6B, 6C, 6J, 6K, 6L in the stacking direction Z, it is firmly fixed by the tightening force between the skeleton plates 6A, 6B, 6C, 6J, 6K, 6L. Has been. Therefore, the structure of the honeycomb core 1 can be further strengthened.

  The above synergizes, and it is possible to realize a strong honeycomb core 1 using a hard and non-deformable member that can be applied even when the cells 2 constituting the honeycomb core 1 are large, for example.

Further, between the skeleton plate materials 6 or the respective plate materials 6, 7 and 8 respectively located in different units 3 are joined by through bolts 20 and dowels 22, and in joining between parts, a specially shaped joint metal is Since it is basically unnecessary, parts procurement and production are easy. That is, the above-described strong honeycomb core 1 can be easily designed and manufactured at a reduced cost.
Further, the first and second interpolation plate members 7 and 8 have a shape cut along the side surface 6a of the same one unit 3 of the skeleton plate material 6, so that an inclined surface 7c which is a cut surface. 8c, the corner 9 is formed in close contact with the skeleton plate 6. That is, the first and second interpolating plate members 7 and 8 can be manufactured by an easy method such as cutting a part of the plate material, whereby the honeycomb core 1 can be easily manufactured. it can.
Further, since the adjacent plate members 6, 7, 8 in the stacking direction Z are bonded to each other by the dowels 22, these adjacent plate members 6, 7, 8 are previously bonded to each other by the dowels, and then the skeleton plate members are formed by the through bolts 20. The honeycomb core 1 can be easily manufactured even in the case of the present embodiment in which one wall portion 5 is formed by a plurality of plate members 6, 7, 8 by following the procedure of joining the six members 6. be able to.

  In addition, there are two types of shapes required for the plate members 6, 7, and 8 necessary for manufacturing the honeycomb core 1 because the first interpolation plate member 7 and the second interpolation plate member 8 have the same shape. As described above, when used in one unit 3 such that the upper surface 6b, 7b, 8b or the lower surface is exposed to the outside, such as the first unit 3A and the fourth unit 3D, these Even when processing so as not to provide the dowel holes 6f, 7f, 8f on the exposed side surface, the skeleton plate 6 has a symmetrical shape in the vertical direction, and the second interpolation plate 8 is Since the first interpolation plate 7 is rotated by 180 ° around the axis X1 shown in each drawing of FIG. 3, the skeleton plate 6 used for the first unit 1A is inverted vertically. The first interpolation plate material 7 used for the first unit 3A used as the fourth stage unit 3D skeleton plate material 6 is inverted in the vertical direction, and the fourth stage one unit 3D second interpolation plate material 8 is used. It is possible to divert the parts, such as use as That is, it is possible to reduce the number of parts required for the construction of the honeycomb core 1, thereby further reducing the manufacturing cost.

  In general, the honeycomb structure has a feature that most of the honeycomb structure is hollow, so that the amount of parts transported to the assembly site can be reduced. Furthermore, as described above, the honeycomb core 1 can be easily manufactured and easily assembled. Therefore, the honeycomb core 1 is not only suitable for use as a structure constituting a large building space such as a floor, partition walls, earthquake-resistant walls, and roofs, but also has a high transportability and is narrow. It is also suitable for use as a structure that constitutes an architectural space in places where it is difficult to transport materials, such as places, mountains, and outer space. It is also suitable for use as a structure for constructing later evacuation facilities, exhibition space / booth space construction, military campsite facilities, and the like. As a use other than the above, for example, it can be used as a structure for building assembly furniture, interiors, and the like, and it can also be used as a structure for earthquake-resistant repair that requires high rigidity. Thus, the honeycomb core 1 can be used for various applications.

(First Modification of Embodiment)
Next, a first modification of the honeycomb core 1 shown as the above embodiment will be described. The honeycomb core of the first modified example is different from the honeycomb core 1 in the above-described embodiment in the joining structure of the first and second interpolation plate materials 7 and 8 to the skeleton plate material 6.
In the first modification, the first and second interpolation plate materials (other plate materials) 7 and 8 are joined to the same unit 3 skeleton plate material (one plate material) 6 at the corner 9. That is, the first and second interpolation plate members 7 and 8 are not joined to the plate members 6, 7 and 8 adjacent in the direction Z by the dowels 22, and instead face the inclined surfaces 7 c and 8 c. It adhere | attaches with the adhesive agent between the surfaces of the side surface 6a of the frame | skeleton board | plate material 6 to perform.

  It goes without saying that the first modification has the same effect as that of the above embodiment. In the first modification, the first and second interpolation plate members 7 and 8 are not joined to the adjacent plate members 6, 7, and 8 in the stacking direction Z, but instead, the first and second interpolation members are used. Since the board | plate materials 7 and 8 are joined to the same one unit 3 frame | skeleton board | plate material 6, it is possible to strengthen the joining between the skeleton board | plate materials 6 similarly to the said embodiment.

(Second Modification of Embodiment)
Next, a second modification of the honeycomb core 1 shown as the above embodiment will be described. FIG. 7 is a partially enlarged view of the honeycomb core 30 in the second modification. The honeycomb core 30 of the second modified example is different from the honeycomb core 1 in the above-described embodiment in that the unit 3 of the honeycomb structure is stacked not in four stages but in three stages.
That is, one unit 3 of the honeycomb structure includes a first unit 3A in the first stage, a first unit 3B in the second stage, and a unit 3C in the third stage, which are configured in the same manner as in the above embodiment. It has a configuration that is stacked over the steps. Each wall 35 of the cell 32 includes one piece of each of the skeleton plate member 6, the first interpolation plate member 7, and the second interpolation plate member 8, and is formed by joining them in the direction Z. .
It goes without saying that the second modification has the same effect as that of the above embodiment.
In the second modified example, since the number of one unit 3 is three, as in the above-described embodiment, the skeleton plate 6 of the first unit 3A and the skeleton plate 6 of the fourth unit 3D are provided. Accordingly, the first and second interpolation plate members 7 and 8 of the second stage one unit 3B and the third stage one unit 3C are not sandwiched and tightened, but instead, for example, the first deformation As described in the example, the first and second interpolating plate members 7 and 8 are reinforced by means such as joining the same one unit 3 skeleton plate member 6 with the wall portion 39, so that the honeycomb core is equivalent to the above embodiment. It is possible to make 30 strength.

(Third Modification of Embodiment)
Next, a third modification of the honeycomb core 1 shown as the above embodiment will be described. 8 and 9 are a partially enlarged view and an exploded perspective view of the honeycomb core 40 in the third modified example. In the honeycomb core 1 in the above embodiment, each wall portion 5 is formed by stacking four plate members 6, 7, and 8. In the honeycomb core 40 of the third modified example, each wall portion 45 is formed. Is formed of a single plate material 46, 47, 48.
The honeycomb core 40 is formed by forming a plurality of plate members 46, 47, and 48 into a honeycomb structure. The plate members 46, 47, 48 include a first plate member 46, a second plate member 47, and a third plate member 48.

As shown in FIG. 8 and FIG. 9, the first plate member 46 includes the skeleton plate member 6 and the first and second interpolation plate members 7 and 8 in the above embodiment in order from the top in the direction Z in FIG. The second interpolation plate member 8, the first interpolation plate member 7, and the skeleton plate member 6 are joined together in this order to form an integrated shape. The first plate member 46 is provided such that the length direction thereof coincides with the direction W and the width direction thereof coincides with the direction Z.
In the second plate 47, the skeleton plate 6, the first and second interpolation plates 7 and 8 in the above-described embodiment are arranged in order from the top in the direction Z in FIG. 2, and the first interpolation plate 7, the skeleton plate 6, and the second interpolation plate. 8 and the first interpolation plate member 7 are joined together in this order to form an integral shape. The second plate 47 is provided such that its length direction coincides with the direction X and its width direction coincides with the direction Z.
The third plate member 48 includes the skeleton plate member 6, the first and second interpolation plate members 7, 8 in the above embodiment in order from the top in the direction Z in FIG. 2, the second interpolation plate member 8, the first interpolation plate member 7, and the skeleton plate member. 6 and the second interpolation plate member 8 are joined together in this order to form an integral shape. The third plate member 48 is provided such that its length direction coincides with the direction Y and its width direction coincides with the direction Z.
As described above, in the corner portion 49 of each cell 42 constituting the honeycomb structure, these three plate members 46, 47, 48 are provided radially at intervals.

As shown in FIG. 9, the three plate members 46, 47, and 48 provided at the corners, that is, the first plate member 46, the second plate member 47, and the third plate member 48 are each in the width direction, that is, in FIG. Convex portions 46a, 47a, and 48a projecting in the length direction, that is, the directions W, X, and Y in FIG. 9, are formed at different positions in the direction Z.
In the first plate member 46, when the first plate member 46 is positioned at the corner portion 49 as described above, the first plate member 46 is divided in the direction Z from the uppermost and lowermost portions in the direction W. A protruding portion 46a having a width of about ¼ of the first plate member 46 is provided.
In the second plate material 47, when the second plate material 47 is positioned at the corner portion 49 as described above, the second plate material 47 is divided in the direction Z from the second step from the top when the second plate material 47 is equally divided into the direction X. A protruding portion 47 a having a width that is about ¼ of the second plate material 47 is provided.
In the third plate member 48, when the third plate member 48 is positioned at the corner portion 49 as described above, the third plate member 48 is divided in the direction Z into four equal parts in the direction Y from the third step from the top. A protruding portion 48 a having a width about ¼ of the third plate member 48 is provided.

By providing the three plate members 46, 47, and 48 so that the convex portions 46 a, 47 a, 48 a of the three plate members 46, 47, 48 overlap each other in the width direction, that is, in the direction Z, , Corners 49 are formed. That is, in the corner portion 49, the convex portion 46 a of the first plate member 46, the convex portion 47 a of the second plate member 47, the convex portion 48 a of the third plate member 48, and the convex portion of the first plate member 46 in order from the top in the direction Z. The portion 46a is provided so as to be positioned.
The corners 9 are joined at the end portions of the first plate member 46, the second plate member 47, and the third plate member 48 that extend in the direction Z and where the convex portions 46a, 47a, 48a are not formed. Other plate members 46, 47, and 48 have a shape cut along the side surfaces 46b, 47b, and 48b of the convex portions 46a, 47a, and 48a.

Through-holes (holes) 46e, 47e, 48e are provided in the projecting portions 46a, 47a, 48a of the three plate members 46, 47, 48 so as to penetrate in the width direction. As described above, in the corner portion 49, the convex portions 46a, 47a, 48a of the plate members 46, 47, 48 are abutted and provided. Thus, when each board | plate material 46, 47, 48 is provided, each through-hole 46e, 47e, 48e is positioned so that each through-hole 46e, 47e, 48e may mutually communicate in the direction Z.
Each of the three plate members 46, 47, 48 has through bolts (tightening members) inserted into the through holes 46e, 47e, 48e of the convex portions 46a, 47a, 48a that are overlapped with each other in the width direction at the corner portion 49. ) Tightened by 20. In this way, the convex portions 46a, 47a, 48a are tightened by the through bolts 20 extending in the width direction, whereby the corner portions 49 are formed.

According to the above configuration, the plate members 46, 47, and 48 are integrally formed. In addition, in the corner portion 49 of each cell 42, three plate members 46, 47, 48 are provided radially at intervals, and the convex portions 46a, 47a, 48a of each of the three plate members 46, 47, 48 are formed. Since they are overlapped with each other in the width direction and fastened by the through bolts 20, the plate members 46, 47, 48 are firmly joined at the corners 49. Thereby, for example, it is possible to realize a strong honeycomb core 40 using a hard and non-deformable member that can be applied even when the cells 42 constituting the honeycomb core 40 are large.
Further, the plate members 46, 47, and 48 are joined by through bolts 20. In joining parts, there is basically no need for specially shaped joining hardware, so parts procurement and production are easy. . That is, the above-described strong honeycomb core 40 can be easily designed and manufactured at a reduced cost.
The third modification can be used for various purposes for the same reason as in the above embodiment.

(Fourth modification of the embodiment)
Next, the 4th modification of the honeycomb core 1 shown as the said embodiment is demonstrated. FIG. 10 is a partially enlarged view of the honeycomb core 60 in the fourth modified example. In the honeycomb core 60 of the fourth modified example, the honeycomb core 1 in the above embodiment is formed such that the plurality of cells 62 are along the virtual curved surface, and the honeycomb core 60 as a whole is shown in FIG. Is different in that it is curved in the left-right direction and is formed in an arch shape.
Such a honeycomb core 60 includes first and second inclined surfaces 6c and 6d, an inclined surface 7c, and an inclined surface 8c in each of the skeleton plate material 6, the first interpolation plate material 7, and the second interpolation plate material 8 shown in FIG. Each can be realized by being slightly inclined in the width direction Z1.
It goes without saying that the fourth modification has the same effect as that of the above embodiment.

(Fifth Modification of Embodiment)
Next, a fifth modification of the honeycomb core 1 shown as the above embodiment will be described. In the honeycomb core of the fifth modified example, the honeycomb core 1 in the above embodiment is formed so that the plurality of cells 62 are along the virtual curved surface, and the honeycomb core is formed in a dome shape as a whole. Is different.
Needless to say, the fifth modification has the same effects as those of the above embodiment.

  The honeycomb core of the present invention is not limited to the above-described embodiment and each modification described with reference to the drawings, and various other modifications can be considered within the technical scope thereof.

For example, in the above embodiment and the first, second, fourth, and fifth modified examples, one unit 3 is stacked in three or four stages, but is stacked in another number of stages, for example, five or more stages. It doesn't matter.
In the third modification, each of the first plate member 46, the second plate member 47, and the third plate member 48 has a shape in which four plate members 6, 7, and 8 described in the above embodiment are joined and integrated. However, instead of this, as described in the second modification, three plate members 6, 7, and 8 may be joined and integrated, or five or more plate members 6, 7 may be integrated. , 8 may be integrated.

Moreover, in the said embodiment and the 1st, 2nd, 4th, 5th modification, the frame | skeleton board | plate material 6 and the 1st and 2nd interpolation board | plate materials 7 and 8 are the width | variety in the width direction Z1, and the thickness in the thickness direction Y1. The ratio is formed so as to be approximately 2 to 1, but other ratios may be provided.
For example, when the ratio is approximately 1: 2 and the thickness in the thickness direction Y1 is thicker, a plurality of through holes 6e are provided in the thickness direction Y1 of the skeleton plate material 6 and a plurality of through bolts 20 are provided at one end. By using, the tightening force in the direction Z can be further strengthened.
Alternatively, it is possible to increase the length in the direction Z of the honeycomb core 1 without increasing the number of steps by further increasing the width in the width direction Z1 to a ratio of about 3: 1.

Moreover, in the said embodiment and the 1st, 2nd, 4th, 5th modification, although the board | plate materials 6, 7, and 8 which were piled up in the direction Z and were adjacent were joined by the dowel 22, Instead, or in addition to this, a through hole is provided at a position between the two through holes 6e in the skeleton plate material 6 and a position corresponding to this in the first and second interpolation plate materials 7 and 8, and Similarly to the joining between the skeleton plate materials 6 in O, the adjacent plate materials 6, 7, 8 may be fastened and joined by through bolts.
Alternatively, the upper surface 6b, 7b, 8b and the lower surface of the plate members 6, 7, 8 may be subjected to actual processing and joined by actual joining. Moreover, you may join by other joining methods, such as tenon joining.

Moreover, in the said embodiment and the 1st, 2nd, 4th, 5th modification, the board | plate materials 6, 7, and 8 stacked and adjoined in the direction Z are only joined by the dowels 22, In addition to this, an adhesive may be used for bonding.
Furthermore, in the said embodiment and the 2nd, 4th, 5th modification, these and the 1st modification are combined, for example, in addition to the structure of the said embodiment, the 1st and 2nd interpolation board | plate materials 7 and 8 are included. You may adhere | attach between the slopes 7c and 8c and the surface of the side surface 6a of the frame | skeleton board | plate material 6 which opposes this with an adhesive agent.

  Moreover, in the said embodiment and each modification, although the board | plate materials 6, 7, and 8 were wooden, you may manufacture with a metal, resin, concrete, etc.

  Other than this, as long as the gist of the present invention is not deviated, it is possible to select the configuration described in the above embodiment and each modification, or to appropriately change to another configuration.

DESCRIPTION OF SYMBOLS 1 Honeycomb core 40 Honeycomb core 2 Cell 42 Cell 3 1 unit 46 1st board | plate material (plate material)
3A 1st stage 1 unit 46a Convex part 3B 2nd stage 1 unit 46e Through hole (hole)
3C 3rd stage unit 47 Second plate (plate)
3D 4th stage unit 47a Convex part 6 (6A to 6L) Skeletal plate material (one plate material) 47e Through hole (hole)
6a Side surface 48 Third plate (plate)
6e Through-hole (hole) 48a Convex part 7 (7A-7L) 1st interpolation board | plate material (other board | plate materials) 48e Through-hole (hole)
8 (8A to 8L) Second interpolation plate material (other plate material) 49 Corner portion 9 (9A to 9F) Corner portion 60 Honeycomb core 20 Through bolt (tightening member) 62 Cell 21 Nut S Internal space 22 Dowel W, X, Y Direction 30 Honeycomb core Z Stacking direction (width direction)
32 cell 39 corner

Claims (8)

A honeycomb core in which a plurality of plate members are configured in a honeycomb structure as a unit, and the unit of the honeycomb structure is stacked and bonded in a plurality of stages,
In the one unit of the honeycomb structure, at the corners of each cell constituting the unit, the three plate members are provided radially at intervals from each other,
The one of the units in the plurality of stages, the one plate material provided at the corner, and the other unit adjacent to the one unit, provided at the corner, of the one unit The one plate material extending in a direction different from the one plate material is fastened by a fastening member extending in a direction in which the one unit is stacked,
In each of the one unit and the other unit, the other plate member extending in a direction different from the one plate member from the corner is joined to the plate member adjacent in the stacking direction, and / or A honeycomb core bonded to the same plate material of the same unit at the corner portion.   2. The honeycomb core according to claim 1, wherein the other plate material has a shape cut along the side surface of the same unit of the one plate material at the corner portion.   One plate member provided at the corner portion of the unit adjacent to the other unit on a side different from the one unit is fastened by the fastening member, and the one unit of the one unit is fastened. 3. The honeycomb core according to claim 1, wherein the plate member and the one plate member of the other unit extend in different directions. Each of the one plate material is provided with a hole penetrating in the stacking direction in a portion located at the corner portion,
The tightening member is a through bolt;
The one plate member of each of the one unit and the other unit is positioned at the corner portion so that the holes communicate with each other, and is tightened by the through bolts inserted into the holes. The honeycomb core according to any one of claims 1 to 3, wherein:   The one unit of the honeycomb structure is stacked in four or more stages, and the one unit of the plate member clamped by the fastening member of the one unit located at a distance of the two units from the one unit is The honeycomb core according to any one of claims 1 to 4, wherein the honeycomb core extends in the same direction as the one plate material of one unit. A honeycomb core formed by forming a plurality of plate members into a honeycomb structure,
In the corners of each cell constituting the honeycomb structure, the three plate members are provided radially at intervals from each other,
Each of the three plate members provided in the corner is formed with a convex portion protruding in the length direction at a position different from the width direction,
The honeycomb core, wherein the convex portions of the three plate members are overlapped with each other in the width direction and tightened by a tightening member extending in the width direction to form the corner portion. In each of the three plate members, the convex portion is provided with a hole penetrating in the width direction,
The tightening member is a through bolt;
The honeycomb core according to claim 6, wherein each of the three plate members is tightened at a corner portion by a through bolt inserted through the hole of each of the convex portions that are overlapped with each other in the width direction.   The honeycomb core according to any one of claims 1 to 7, wherein the plurality of cells are formed along a virtual curved surface.