JP7246064B2 - Top plate and table with top plate - Google Patents

Description

TECHNICAL FIELD The present invention relates to a top plate for a table in which a void core material having voids therein is provided in the inner space.

2. Description of the Related Art Conventionally, there has been known a top plate for a table in which a void core material such as a honeycomb structure is provided in the inner space (for example, Patent Literature 1). In this type of top plate, a core material with voids is used in order to reduce the weight while ensuring the strength against the load acting from above.

Here, among the tables provided with this type of top plate, there are those in which table legs are attached to back side bars (for example, part of the frame) attached to the back side of the top plate. In FIGS. 5(a) and 5(b), each back-side bar 21a, 21b is attached to the top plate 10 at a plurality of locations. 22a and 22b indicate attachment points. In FIG. 5( a ), each of the back side bars 21 a and 21 b is attached to the long side of the frame member 11 . In FIG. 5(b), each back side bar 21a, 21b is attached to a transverse member 23 that traverses the inside of the frame member 11. In FIG. Note that the cross-hatched portions in FIG. 5 represent the void core material 14 .

Japanese Unexamined Patent Application Publication No. 2011-357

By the way, in the top plate 10 shown in FIG. 5A, it is necessary to secure the width of the frame member 11 according to the positions of the back side bars 21a and 21b arranged inside the outer periphery of the top plate 10. As shown in FIG. Also, in the top plate 10 shown in FIG. 5(b), the length of the transverse member 23 used for attaching the back side bars 21a and 21b is long. In either case, the volume of the core material 14, which has a lower specific gravity than that of the frame member 11 and the cross member 23, is reduced in order to secure a portion for attaching the back side rods 21a and 21b, and the weight of the top plate 10 is increased. do.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and an object of the present invention is to achieve further weight reduction while ensuring strength against an upper load in a top plate for a table.

In order to solve the above-described problems, a first invention is a top plate for a table, comprising: a frame member forming the outer periphery of the top plate; a surface member attached to the front side of the frame member; A backing material attached to the back side, and a plurality of backing bars arranged in an inner space surrounded by a frame material and partitioned by the front side material and the back side material and provided on the back side of the top plate for attaching table legs. and a core member which is a member having a void inside and which is provided so as to fill the inner space together with the plurality of inner mounting members, and the same back side bar is attached inside the frame member a plurality of inner fittings arranged spaced apart from each other;

In a second invention based on the first invention, each of the plurality of inner mounting members extends inward from the inner surface of the frame member.

A third invention is based on the first or second invention, wherein a first back side bar and a second back side bar are provided as back side bars on the back surface of the top plate, and the first back side bar is provided inside the frame member. A first group of inner mounting members composed of a plurality of inner mounting members to which the bars are attached, and a second group of inner mounting members composed of a plurality of inner mounting members to which the second back side bars are attached, They are arranged so as to face each other.

In a fourth aspect based on the first or second aspect, the inner mounting member of the first group and the inner mounting member of the second group are arranged across the center line of the top plate extending in a predetermined direction in a plan view inside the frame member. The inner mounting members are spaced apart from each other.

A fifth invention comprises a top plate according to any one of the first to fourth inventions, a plurality of back side bars attached to a plurality of inner mounting members, and a plurality of table legs attached to the back side bars. It is a table provided.

In the present invention, since the void core member is provided so as to fill the inner space together with the plurality of inner attachment members, the strength of the top plate can be secured against the upper load.

Further, in the present invention, a plurality of inner mounting members (hereinafter sometimes referred to as "plurality of inner mounting members for the same material") are provided for the same back side bar, and a plurality of inner mounting members for the same material are provided. are spaced apart from each other. In other words, when attaching the back side bars to the top plate at a plurality of locations, the attachment is performed at a plurality of inner side attachment members that are spaced apart from each other. Here, each inner mounting member needs to be at least large enough to secure a mounting point (for example, a mounting point using a nail or a screw) for the back side bar, and the area can be made relatively small. Therefore, the volume of the void core material having a low specific gravity can be increased compared with the conventional one, and the weight of the top plate can be reduced.

Thus, according to the present invention, it is possible to further reduce the weight of the table top plate while ensuring the strength against the upper load.

FIG. 1 is a side view of the table according to the embodiment. FIG. 2 is a diagram for explaining the internal structure of the table top plate according to the embodiment. FIG. 3 is a diagram for explaining the back side bar and the inner mounting member in the table according to the embodiment. FIG. 4 is a diagram for explaining a back side bar and an inner mounting member in a table according to another embodiment. FIG. 5 is a diagram for explaining the internal structure of the top board for the table described in Background Art.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 5. FIG. The following embodiments are examples of the present invention, and are not intended to limit the scope of the present invention, its applications, or its uses.

As shown in FIG. 1, this embodiment includes a top plate 10, a plurality of back side bars 21a and 21b fixed to the back side of the top plate 10, and a plurality of table legs attached to the back side bars 21a and 21b. 25 is a table 20. Each table leg 25 is attached to the back side bars 21a and 21b so as to be rotatable inward with its upper end as a fulcrum. The table 20 can be folded by rotating each table leg 25 . Although the top plate 10 is made of wood in this embodiment, it is not limited to wood. Moreover, although each of the back side bars 21a and 21b and the table leg 25 is made of metal, it is not limited to metal. Each back side bar 21a, 21b is part of a rectangular frame to which table legs 25 are attached, for example.
[Composition of the top board]

FIG. 2(a) is a cross-sectional view of the top plate 10 cut in the horizontal direction. FIG. 2(b) is an enlarged cross-sectional view taken along the line AA shown in FIG. 2(a). In FIGS. 2(a) and 2(b), oblique hatching indicates wood (for example, plywood) portions without voids, and cross hatching indicates core material portions with voids.

As shown in FIG. 2 , the top plate 10 includes a frame member 11 forming the outer periphery of the top plate 10 , a plate-like surface member 12 attached to the front side of the frame member 11 , and attached to the back side of the frame member 11 . The inner space of the top plate 10 is filled with the plate-like back surface material 13, the plurality of inner mounting members 15a and 15b arranged in the inner space of the frame member 11, and the plurality of inner mounting members 15a and 15b. and a void core material 14 which is provided. A space inside the top plate 10 is a space surrounded by a frame member 11 and partitioned by a surface member 12 and a back member 13 . Also, the plurality of inner mounting members 15a and 15b are members for mounting the back side bars 21a and 21b (see FIG. 1 etc.) to the back side of the top plate 10. As shown in FIG. The top plate 10 is lightened while ensuring strength by filling the internal space with the core material 14 or the like. A plywood material 16 for attaching a handle is provided in the central portion of the top plate 10 .

The frame member 11 is configured by connecting the ends of a plurality of rods to each other. The rods can be connected to each other by fasteners such as screws and nails, or by adhesives. The frame member 11 is formed in a rectangular shape. In addition, the planar shape of the frame member 11 is not limited to a rectangle, and may be another shape such as a square, a circle, an oval, or an ellipse. A guard member 18 made of resin is attached to the outer peripheral surface of the frame member 11, as shown in FIG. 2(b).

Each of the surface material 12 and the back material 13 is formed to have approximately the same shape and approximately the same size as the outer peripheral shape of the frame member 11 . A thin plate that is thinner than the height of the frame member 11 is used for each of the surface member 12 and the back member 13 .

For the surface material 12, a decorative board such as a polyester decorative plywood or a melamine decorative board can be used. The thickness of the surface material 12 is, for example, 2.5 mm. On the other hand, for the back material 13, for example, plywood or the like can be used. The thickness of the backing material 13 is, for example, 2.5 mm. Note that the surface material 12 and the back material 13 do not have to have the same thickness.

FIG. 3 is a plan view in which the surface material 12 and the core material 14 of the components of the top plate 10 are omitted. In FIG. 3, the constituent members (back side bars 21a, 21b, etc.) of the table 20 positioned below the back side member 13 when the table 20 is folded are indicated by dotted lines.

Here, in this embodiment, as shown in FIG. 3, a pair of first back side bar 21a and second back side bar 21b are provided along the back surface of the top plate 10. As shown in FIG. Each of the back side bars 21 a and 21 b is a straight bar-shaped member and extends in the longitudinal direction of the top plate 10 . A pair of the first back side bar 21a and the second back side bar 21b are arranged parallel to each other with a space therebetween. Each back side bar 21a, 21b is arranged slightly inside the long side portions 11a, 11b of the frame member 11. As shown in FIG.

As shown in FIG. 3, the plurality of inner mounting members 15a and 15b are first mounting members 15a (four inner mounting members 15a in FIG. 3) to which the first back side bar 21a is attached. Including a group of inner fittings 15a and a second group of inner fittings 15b made up of a plurality of inner fittings 15b (four inner fittings 15b in FIG. 3) to which second back bars 21b are attached. . Each of the inner mounting members 15a and 15b is a bar-shaped member having a small width and a short length. The width of each of the inner mounting members 15a and 15b should be at least the width necessary for mounting the back side bars 21a and 21b with fasteners such as screws or nails, for example 40 mm or less (preferably 30 mm or less). can be In FIG. 3, the width of each inner mounting member 15a, 15b is 30 mm. Moreover, the height of each of the inner mounting members 15 a and 15 b is substantially equal to the height of the frame member 11 .

Each of the inner mounting members 15a and 15b has a rear side bar 21a and 21b mounted at one location 22a and 22b. At each location 22a, 22b, attachment is made from the lower side of the backing member 13 with fasteners such as screws or nails. A plurality of attachment points 22a and 22b may be provided on each of the inner attachment members 15a and 15b.

Each inner mounting member 15a of the first group is fixed to the inner surface of the first long side portion 11a of the frame member 11 by, for example, Tucker, and extends inward from the inner surface substantially perpendicularly. Each inner attachment member 15a of the first group intersects with the first back side bar 21a. Each inner mounting member 15b of the second group is fixed to the inner surface of the second long side portion 11b of the frame member 11 by, for example, Tucker, and extends inward from the inner surface substantially perpendicularly. Each inner mounting member 15b of the second group intersects with a second rear bar 21b. The inner mounting members 15a and 15b may extend obliquely from the long side portions 11a and 11b. Also, each inner mounting member 15 a may be spaced inward from the inner surface of the frame member 11 . In this case, each inner mounting member 15a can be fixed to the backing member 13, for example.

In each group, as shown in FIG. 3, a plurality of inner mounting members 15a and 15b are arranged at equal intervals in the longitudinal direction of the top plate 10. As shown in FIG. In each group, a plurality of inner mounting members 15a and 15b are arranged with a gap core member 14 interposed therebetween.

In addition, the positions of the inner mounting members 15a and 15b in the longitudinal direction of the top plate 10 coincide with each other between the first group and the second group. Inside the frame member 11, the first group of inner mounting members 15a and the second group of inner mounting members 15b are arranged to sandwich the center line C of the top plate 10 extending in a predetermined direction (longitudinal direction) in plan view. facing each other.

Further, inside the frame member 11, the first group of inner mounting members 15a and the second group of inner mounting members 15b are separated from each other with the center line C therebetween. The length of each inner mounting member 15a, 15b is shorter than, for example, a quarter of the short side length of the top plate 10. As shown in FIG. A gap core member 14 is provided between the inner mounting members 15a and 15b facing each other.

The void core member 14 has voids inside and has a smaller specific gravity than the inner attachment members 15a and 15b. For the void core material 14, for example, a core material having a honeycomb structure (for example, a paper core) can be used. In the present embodiment, a plurality of void core members 14 are provided so as to fill spaces in the interior space of the top plate 10 other than where the inner mounting members 15a and 15b and the plywood member 16 are installed. The height of each void core member 14 is approximately equal to the height of the frame member 11 . Therefore, even if a load acts on the top plate 10 from above, the surface material 12 is less likely to bend.

[Effects of the embodiment, etc.]
In this embodiment, when the back side rods 21a and 21b are attached to the top plate 10 at a plurality of locations, they are attached at a plurality of inner side attachment members 15a and 15b that are spaced apart from each other. Each of the inner mounting members 15a and 15b only needs to be large enough to secure the mounting points 22a and 22b of the back side bars 21a and 21b, and can be made relatively small. For example, the total length (total length in each group) of the plurality of inner mounting members 15a and 15b to which the same back side bars 21a and 21b are mounted is shorter than the length of the internal space of the frame member 11 in the longitudinal direction. According to this embodiment, in the internal space of the frame member 11, the volume of the void core member 14 having a small specific gravity can be increased compared to the conventional case, and the weight of the top plate 10 can be reduced.

Also, the top plate 10 according to the present embodiment is used for a table 20 used in a hotel or the like. Since the top plate 10 is relatively light, it is possible to reduce the load of moving and storing the table 20. - 特許庁

[Other embodiments]
Although the lengths of all the inner mounting members 15a and 15b are shortened in the above-described embodiment, the lengths of some of the inner mounting members 15a and 15b may be lengthened. For example, in the case of the circular top plate 10 shown in FIG. 4, the strength of the central portion of the top plate 10 can be increased by lengthening the central inner mounting members 15a and 15b in the same group. Of the inner mounting members 15a and 15b, only the middle inner mounting members 15a and 15b extend up to a rod member 17 extending in the radial direction of the top plate 10 in a direction substantially perpendicular to the respective inner mounting members 15a and 15b. 4 omits illustration of the surface material 12 and the void core material 14, as in FIG. 4, all of the inner mounting members 15a and 15b may extend to the rod member 17, for example, when the diameter is large.

INDUSTRIAL APPLICABILITY The present invention can be applied to table tops and the like in which a void core material is provided in the inner space.

10 Top plate 11 Frame material 12 Surface material 13 Back material 14 Gap core material 15a First group of inner attachment members 15b Second group of inner attachment members 21a First back side bar 21b Second back side bar

Claims (5)

A top plate for a table,
a frame member forming the outer peripheral portion of the top plate;
a surface material attached to the front side of the frame material;
a back material attached to the back side of the frame material;
a plurality of inner mounting members arranged in an inner space surrounded by the frame member and partitioned by the surface member and the back member, and to which back side bars provided on the back side of the top plate for mounting table legs are attached;
A member having a void inside, comprising a void core member provided so as to fill the inner space together with the plurality of inner mounting members,
Inside the frame member, a plurality of inner mounting members to which the same back side bar is attached are spaced apart from each other. A top plate formed with through holes other than the through holes through which fixtures such as the above are passed, or a top plate having traces of forming the inner mounting member by hardening the material in the recess formed in the void core material except) . A top plate for a table,
a frame member forming the outer peripheral portion of the top plate;
a surface material attached to the front side of the frame material;
a back material attached to the back side of the frame material;
a plurality of inner mounting members arranged in an inner space surrounded by the frame member and partitioned by the surface member and the back member, and to which back side bars provided on the back side of the top plate for mounting table legs are attached;
A member having a void inside, comprising a void core member provided so as to fill the inner space together with the plurality of inner mounting members,
Inside the frame member, a plurality of inner attachment members to which the same back side bar is attached are arranged apart from each other,
The top plate, wherein each of the plurality of inner mounting members extends inwardly from the inner surface of the frame member. A top plate for a table,
a frame member forming the outer peripheral portion of the top plate;
a surface material attached to the front side of the frame material;
a back material attached to the back side of the frame material;
a plurality of inner mounting members arranged in an inner space surrounded by the frame member and partitioned by the surface member and the back member, and to which back side bars provided on the back side of the top plate for mounting table legs are attached;
A member having a void inside, comprising a void core member provided so as to fill the inner space together with the plurality of inner mounting members,
Inside the frame member, a plurality of inner attachment members to which the same back side bar is attached are arranged apart from each other,
A first back side bar and a second back side bar are provided as the back side bar on the back surface of the top plate,
Inside the frame member, a first group of inner mounting members formed by the plurality of inner mounting members to which the first rear bars are attached, and a plurality of inner mounting members to which the second rear bars are attached. and a second group of inner mounting members formed by: are arranged so as to face each other. Inside the frame member, the first group of inner mounting members and the second group of inner mounting members are separated from each other across a center line of the top plate extending in a predetermined direction in plan view. Item 3. The top plate according to item 3 . A top plate according to any one of claims 1 to 4;
a plurality of backside bars attached to the plurality of inner mounting members;
and a plurality of table legs attached to the back bar.

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