Top plate and fixture with top plate

Abstract

To provide a top plate that can be easily formed into various shapes while rigidity is secured by a metal material, a fixture with the top plate, and a manufacturing method for the top plate.SOLUTION: A top plate comprises: a first metal plate 11; a second metal plate 12 separately arranged below the first metal plate 11, and having a shape corresponding to the first metal plate 11; and an edge constituent member 13 sandwiched between the first metal plate 11 and the second metal plate 12, having an outer peripheral surface 13a formed along outer peripheral edges 11a and 12a of the first metal plate 11 and the second metal plate 12, and made of a softer material than metal forming the first metal plate 11 and the second metal plate 12.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a tabletop, a fixture with a tabletop, and a method for manufacturing a tabletop. [Background technology]

[0002] For example, the following Patent Document 1 discloses a tabletop constructed by assembling a tabletop body constituting a work surface, a reinforcing frame, and a back cover, each made of the same material, sheet metal. The tabletop body is constructed of a base plate whose upper surface forms a work plane, and a downward piece bent downward from the periphery of the base plate. The reinforcing frame is spot welded to the underside of the base plate of the tabletop body. The back cover is constructed of a cover base plate and an upward piece bent upward from the periphery of the cover base plate. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2008 / 023794 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, in the case of the tabletop disclosed in Patent Document 1, a die corresponding to the tabletop shape is prepared in advance in order to process the tabletop body, which is the upper plate constituting the upper surface of the tabletop, and the back cover, which is the lower plate constituting the lower surface of the tabletop, in a manner that matches the shape of the tabletop. Then, the upper and lower plates are formed by processing the plate material with the die. For this reason, it was necessary to prepare a die for processing the sheet metal for each tabletop shape. In addition, in the case of a tabletop having a curved outer periphery, the curved outer periphery is also folded to form the side surface. In the curved portion, wrinkles and cracks are likely to occur in the side surface portion and the corners between the side surface and the upper and lower surfaces, making processing difficult. For this reason, it was difficult to form the tabletop into various shapes other than a rectangular plate shape.

[0005] Therefore, an object of the present invention is to provide a tabletop, a fixture with a tabletop, and a method for manufacturing a tabletop, which can be easily formed into various shapes while ensuring rigidity using metal material. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, a top plate according to one embodiment of the present invention comprises a first metal plate, a second metal plate arranged below the first metal plate at a distance and having a shape corresponding to that of the first metal plate, and an edge component member sandwiched between the first metal plate and the second metal plate and made of a material softer than the metal forming the first metal plate and the second metal plate, the edge component member having an outer circumferential surface formed along the outer circumferential edges of the first metal plate and the second metal plate.

[0007] According to this aspect, the table top has the metal material, which has a higher rigidity than resin material, wood, etc., spaced apart from one another above and below, so that the rigidity of the table top can be ensured. An edge component is disposed between the first metal plate and the second metal plate. The outer peripheral surface of the edge component is formed along the outer peripheral edges of the first metal plate and the second metal plate. As a result, the outer peripheral surface of the edge component becomes the side surface of the top plate, so that the side surface of the top plate can be formed without bending the outer peripheral edges of the first metal plate or the second metal plate. Therefore, since the side surface of the top plate can be formed without using a die for sheet metal processing the first metal plate and the second metal plate, the top plate can be formed into various shapes other than a rectangular plate shape. The edge component is made of a material that is softer than the first and second metal plates. This allows the outer peripheral surface of the edge component to be easily formed to match the shapes of the first and second metal plates. Since the outer peripheral surface of the edge component becomes the side surface of the top plate, it is easy to form the top plate into various shapes.

[0008] In the top plate of the above aspect, the edge component may be a frame-shaped member arranged along the outer periphery of the first metal plate and the second metal plate. According to this aspect, the inside of the edge component is hollow, which allows the edge component to be formed only in the portion required to form the side surface, thereby reducing the amount of material used and making the tabletop lighter.

[0009] The top plate of the above aspect may further comprise a spacer that is sandwiched between the first metal plate and the second metal plate and surrounded by the edge component. According to this aspect, the interior of the edge component is hollow to accommodate the spacer, and the spacer supports the portion of the first metal plate that is not supported by the edge component, thereby making it possible to reduce the weight of the tabletop and increase the rigidity of the tabletop.

[0010] In the tabletop of the above-described embodiment, the edge component member has a positioning recess on a surface facing the first metal plate and the second metal plate, and the first metal plate and the second metal plate have positioning protrusions on their surfaces facing the edge component member that protrude toward the edge component member, and the positioning protrusions may be provided at positions corresponding to the positioning recesses. According to this aspect, the first metal plate and the second metal plate can be easily positioned with respect to the edge component by simply arranging the positioning protrusions in the positioning recesses, which allows the table top to be manufactured efficiently.

[0011] The fixture with a tabletop according to this aspect comprises a tabletop according to any one of the above aspects and a leg member that supports the tabletop. According to this aspect, the fixture with a tabletop is provided with a tabletop relating to any of the above-mentioned aspects, making it easy to manufacture fixtures with tabletops having tabletops of various shapes while ensuring the rigidity of the tabletop using metal material.

[0012] A manufacturing method for a tabletop according to one embodiment of the present invention includes an edge component joining process in which an edge component made of a material softer than the metal forming the first metal plate and the second metal plate is arranged and joined to one side of a first metal plate and a second metal plate having corresponding shapes, and a clamping process in which the edge component is sandwiched between the edge component and the other one of the first metal plate and the second metal plate is arranged and joined to the opposite side of one of the first metal plate and the second metal plate. According to this aspect, it is possible to manufacture a tabletop having a first metal plate and a second metal plate disposed below the first metal plate at a distance. As a result, the tabletop has metal materials having higher rigidity than resin materials, wood, etc., spaced apart from each other above and below. This ensures the rigidity of the tabletop. An edge component can be disposed between the first metal plate and the second metal plate. The edge component is made of a material softer than the metal forming the first metal plate and the second metal plate, so that the outer peripheral surface of the edge component can be formed along the outer peripheral edges of the first metal plate and the second metal plate. As a result, the outer peripheral surface of the edge component becomes the side surface of the top plate, so that the side surface of the top plate can be formed without bending the outer peripheral edges of the first metal plate or the second metal plate. Therefore, the side surface of the top plate can be formed without using a die for sheet metal processing the first metal plate and the second metal plate, so that the top plate can be formed into various shapes other than a rectangular plate shape. The edge component is made of a material that is softer than the first and second metal plates. This allows the outer peripheral surface of the edge component to be easily formed to match the shapes of the first and second metal plates. Since the outer peripheral surface of the edge component becomes the side surface of the top plate, it is easy to form the top plate into various shapes.

[0013] In the manufacturing method of the tabletop of the above aspect, in the edge component joining process, the edge component formed in a frame shape is arranged along the outer peripheral edge of one of the first metal plate and the second metal plate, and in the clamping process, the other of the first metal plate and the second metal plate is arranged so that the outer peripheral edge of the other of the first metal plate and the second metal plate is along the edge component formed in a frame shape. According to this aspect, a frame-shaped edge component can be arranged along the outer periphery of the first metal plate and the second metal plate. This allows the inside of the edge component to be hollow. Therefore, the edge component can be formed only in the portion necessary for forming the side surface, reducing the amount of material used, thereby making the top plate lighter.

[0014] In the manufacturing method of the tabletop of the above-mentioned aspect, in the edge component joining process, a spacer may be arranged inside the edge component on one of the surfaces of the first metal plate and the second metal plate, when viewed from the plate thickness direction of the first metal plate. According to this aspect, the interior of the edge component is hollow to accommodate the spacer, and the spacer supports the portion of the first metal plate that is not supported by the edge component, thereby making it possible to reduce the weight of the tabletop while ensuring the rigidity of the tabletop.

[0015] In the manufacturing method of the tabletop of the above-mentioned aspect, the method includes a decorative board joining process for joining a decorative board to the upper surface of the first metal plate, and a decorative board cutting process for cutting the decorative board joined to the upper surface of the first metal plate, and in the edge component member joining process, the edge component member is arranged so that the outer peripheral surface of the edge component member is located outer than the outer peripheral edge of the second metal plate when viewed from the plate thickness direction of the first metal plate, and in the clamping process, the first metal plate is arranged so that the outer peripheral edge of the first metal plate is located inner than the outer peripheral surface of the edge component member when viewed from the plate thickness direction, and in the decorative board cutting process, after the clamping process, the decorative board is cut along the outer peripheral surface of the edge component member. According to this embodiment, the outer peripheral edge of the decorative plate can be positioned on the same plane as the outer peripheral surface of the edge component simply by cutting the decorative plate. This allows stickers and other materials for decorating the side surface of the tabletop to be attached to the outer peripheral edge of the decorative plate and the outer peripheral surface of the edge component without creating unnecessary creases. This improves the design of the side surface of the tabletop. Effect of the Invention

[0016] According to each of the above aspects, it is possible to provide a tabletop, a fixture with a tabletop, and a method for manufacturing a tabletop that can be easily formed into various shapes while ensuring rigidity using a metal material. [Brief description of the drawings]

[0017] [Figure 1] FIG. 2 is an oblique view of a display unit with a tabletop according to an embodiment. [Diagram 2] FIG. 2 is a top view of a top plate according to the embodiment. [Diagram 3] FIG. [Figure 4] 4 is an enlarged cross-sectional side view of a side portion of the top plate according to the embodiment. FIG. [Diagram 5] 10A and 10B are side cross-sectional views of a top plate for explaining a manufacturing method of the top plate according to the embodiment. [Figure 6] FIG. 11 is an enlarged perspective view of a second metal plate according to a modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Hereinafter, an embodiment of the furniture with a tabletop according to the present invention will be described with reference to the drawings. In the following description, the up and down directions refer to the directions as seen by a user of the furniture with a tabletop.

[0019] [Display unit with tabletop 1] 1 includes a tabletop 10 and a leg member 2 that supports the tabletop 10. The leg member 2 is fixed to the underside 10a of the tabletop 10, for example, by fastening a bolt (not shown) provided at the upper end of the leg member 2 to a nut (not shown) provided on the underside 10a of the tabletop 10. The method of fixing the leg member 2 to the tabletop 10 is not limited to fastening with a bolt, and can be selected as appropriate.

[0020] [Tabletop 10] As shown in FIGS. 2 to 4, the top plate 10 includes a first metal plate 11, a second metal plate 12, an edge component 13, a spacer 14, a decorative plate 15, and a side decorative member 16.

[0021] <First metal plate 11> The first metal plate 11 is formed of a metal material such as steel. The first metal plate 11 is a thin plate material. The plate thickness direction D of the first metal plate 11 coincides with the up-down direction. A decorative plate 15 is provided on the upper surface 11c of the first metal plate 11 to form a work surface. The first metal plate 11 may have a polygonal shape such as a rectangle when viewed from the plate thickness direction D, and at least a part of the outer circumferential edge 11a may be curved. In this embodiment, the first metal plate 11 has the entire outer circumferential edge 11a curved when viewed from the plate thickness direction D.

[0022] In this embodiment, the first metal plate 11 has a plurality of edge side positioning protrusions 11d (corresponding to positioning protrusions in claims) that protrude downward at locations along the outer peripheral edge 11a of the lower surface 11b. The edge side positioning protrusions 11d are formed by recessing the upper surface 11c of the first metal plate 11 downward. The edge side positioning protrusions 11d are formed in a circular shape when viewed from the plate thickness direction D.

[0023] The first metal plate 11 has four inner positioning protrusions 11e that protrude downward at a location on the lower surface 11b that is more inward than the edge side positioning protrusions 11d. The four inner positioning protrusions 11e are arranged to form a rectangle when viewed from the plate thickness direction D. The inner positioning protrusions 11e are formed by recessing the upper surface 11c of the first metal plate 11 downward. The inner positioning protrusions 11e are formed in a circular shape when viewed from the plate thickness direction D.

[0024] <Second Metal Plate 12> The second metal plate 12 is spaced below the first metal plate 11. The second metal plate 12 is formed of a metal material such as steel. The second metal plate 12 is a thin plate material. The plate thickness direction D of the second metal plate 12 coincides with the up-down direction. The lower surface 12b of the second metal plate 12 becomes the lower surface 10a of the top plate 10. The upper surface 12c of the second metal plate 12 is along the lower surface 11b of the first metal plate 11. The second metal plate 12 may have a polygonal shape such as a rectangle when viewed from the plate thickness direction D, and at least a part of the outer circumferential edge 12a may be curved. In this embodiment, the second metal plate 12 has the entire outer circumferential edge 12a curved when viewed from the plate thickness direction D. The second metal plate 12 is formed in a shape corresponding to the first metal plate 11. In this embodiment, the second metal plate 12 is formed in the same shape as the first metal plate 11.

[0025] The second metal plate 12 has a plurality of edge positioning protrusions 12d (corresponding to the positioning protrusions in the claims) protruding upward at locations along the outer peripheral edge 12a of the upper surface 12c. The edge positioning protrusions 12d are formed by recessing the lower surface 12b of the second metal plate 12 upward. The edge positioning protrusions 12d are formed in a circular shape when viewed from the plate thickness direction D. The edge positioning protrusions 12d of the second metal plate 12 are formed in the same shape as the edge positioning protrusions 11d of the first metal plate 11. The edge positioning protrusions 12d of the second metal plate 12 are provided at positions corresponding to the edge positioning protrusions 11d of the first metal plate 11. The edge positioning protrusions 12d of the second metal plate 12 are provided at the same positions as the edge positioning protrusions 11d of the first metal plate 11 when viewed from the plate thickness direction D.

[0026] The second metal plate 12 has four inner positioning protrusions 12e protruding downward at a location on the upper surface 12c that is more inward than the edge side positioning protrusions 12d. The four inner positioning protrusions 12e are arranged to form a rectangle when viewed from the plate thickness direction D. The inner positioning protrusions 12e are formed by recessing the lower surface 12b of the second metal plate 12 upward. The inner positioning protrusions 12e are formed in a circular shape when viewed from the plate thickness direction D. The inner positioning protrusions 12e of the second metal plate 12 are formed in the same shape as the inner positioning protrusions 11e of the first metal plate 11. The inner positioning protrusions 12e of the second metal plate 12 are provided at a position corresponding to the inner positioning protrusions 11e of the first metal plate 11. The inner positioning protrusions 12e of the second metal plate 12 are provided at the same position as the inner positioning protrusions 11e of the first metal plate 11 when viewed from the plate thickness direction D.

[0027] <Edge component 13> The edge component 13 is sandwiched between the first metal plate 11 and the second metal plate 12. The edge component 13 is formed of a material softer than the metal forming the first metal plate 11 and the second metal plate 12. The edge component 13 is formed of, for example, MDF (Medium Density Fiberboard), which is an aggregate material manufactured from wood, wood chips, etc., or a resin material. In this embodiment, the edge component 13 is a frame-shaped member formed along the outer peripheral edges 11a, 12a of the first metal plate 11 and the second metal plate 12. The edge component 13 is joined to the lower surface 11b of the first metal plate 11 and the upper surface 12c of the second metal plate 12 by, for example, an adhesive. The edge component 13 has an outer peripheral surface 13a formed along the outer peripheral edges 11a, 12a of the first metal plate 11 and the second metal plate 12. The edge component 13 may have at least a part of the outer peripheral surface 13a curved to correspond to the outer peripheral edges 11a, 12a of the first metal plate 11 and the second metal plate 12. In this embodiment, the edge component 13 has the entire outer peripheral surface 13a curved when viewed from the plate thickness direction D to correspond to the outer peripheral edges 11a, 12a of the first metal plate 11 and the second metal plate 12. The outer peripheral surface 13a of the edge component 13 is located outside the outer peripheral edges 11a, 12a of the first metal plate 11 and the second metal plate 12 when viewed from the plate thickness direction D of the first metal plate 11. The outer peripheral surface 13a of the edge component 13 is along the plate thickness direction D. The outer peripheral surface 13a becomes the side surface 10c of the top plate 10.

[0028] The edge component 13 has a plurality of edge side positioning recesses 13b (corresponding to the positioning recesses in the claims) on the surface facing the first metal plate 11 and the second metal plate 12. The inner shape of the edge side positioning recesses 13b is formed in a circular shape when viewed from the plate thickness direction D. The inner shape of the edge side positioning recesses 13b is formed in the same shape as the outer shape of the edge side positioning protrusions 11d, 12d. The inner shape of the edge side positioning recesses 13b is formed slightly larger than the outer shape of the edge side positioning protrusions 11d, 12d. The edge side positioning recesses 13b are provided at positions corresponding to the edge side positioning protrusions 11d, 12d of the first metal plate 11 and the second metal plate 12. In other words, the edge side positioning protrusions 11d, 12d are provided at positions corresponding to the edge side positioning recesses 13b. The edge side positioning recess 13b is provided at the same position as the edge side positioning protrusions 11d, 12d of the first metal plate 11 and the second metal plate 12 when viewed from the plate thickness direction D. The edge side positioning recess 13b has the edge side positioning protrusions 11d, 12d arranged therein.

[0029] The edge component 13 is made up of a number of small pieces 20 connected to one another. Each small piece 20 is a block extending along the lower surface 11b of the first metal plate 11 and the upper surface 12c of the second metal plate 12. Each small piece 20 has an engaging claw 21 provided on one end surface 20a in the longitudinal direction of the small piece 20 (corresponding to one side surface of the small piece in the claims), and an engaging recess 22 that engages with the engaging claw 21 and is provided on the other end surface 20b in the longitudinal direction of the small piece 20 (corresponding to the other side surface of the small piece in the claims).

[0030] The engagement claws 21 are formed so as to protrude outward from the end surface 20a when viewed from the plate thickness direction D. The engagement claws 21 are formed in a tapered shape that tapers from the tip end 21a toward the base end 21b when viewed from the plate thickness direction D. That is, the outer shape of the tip end 21a of the engagement claws 21 is formed to be larger than the outer shape of the base end 21b.

[0031] The engagement recess 22 is recessed inward from the end surface 20b when viewed from the plate thickness direction D. The engagement recess 22 has a shape corresponding to the engagement claw 21 when viewed from the plate thickness direction D. More specifically, the engagement recess 22 is formed in a tapered shape such that the width of an inner portion 22a of the engagement recess 22 corresponding to the tip end 21a of the engagement claw 21 is wider than the width of an outer portion 22b of the engagement recess 22 corresponding to the base end 21b of the engagement claw 21. The outer size of the engagement recess 22 is formed to be approximately the same as or slightly larger than the size of the engagement claw 21. The plurality of small pieces 20 are connected to one another by the engagement claws 21 and engagement recesses 22 of adjacent small pieces 20 , thereby forming the edge component 13 .

[0032] Each small piece 20 has two edge side positioning recesses 13b on the surface facing the first metal plate 11. The two edge side positioning recesses 13b provided on the first metal plate 11 side are arranged one on the engaging claw 21 side and one on the engaging recess 22 side. Each small piece 20 has two edge side positioning recesses 13b on the surface facing the second metal plate 12. The two edge side positioning recesses 13b provided on the second metal plate 12 side are arranged one on the engaging claw 21 side and one on the engaging recess 22 side.

[0033] <Spacer 14> The spacer 14 is sandwiched between the first metal plate 11 and the second metal plate 12. The spacer 14 is surrounded by the edge component 13. The spacer 14 is made of a material that is lighter than the material that forms the edge component 13. The spacer 14 is made of, for example, polystyrene foam. The spacer 14 is a rectangular plate-shaped member. The spacer 14 is joined to the lower surface 11b of the first metal plate 11 and the upper surface 12c of the second metal plate 12 by, for example, an adhesive.

[0034] The spacer 14 has four inner positioning recesses 14a on each of the surfaces facing the first metal plate 11 and the second metal plate 12. The inner shape of the inner positioning recesses 14a is formed in a circular shape when viewed from the plate thickness direction D. The inner shape of the inner positioning recesses 14a is formed in the same shape as the outer shape of the inner positioning protrusions 11e and 12e. The inner shape of the inner positioning recesses 14a is formed slightly larger than the outer shape of the inner positioning protrusions 11e and 12e. The four inner positioning recesses 14a are arranged at the corners of the spacer 14 when viewed from the plate thickness direction D. The inner positioning recesses 14a are provided at positions corresponding to the inner positioning protrusions 11e and 12e of the first metal plate 11 and the second metal plate 12. In other words, the inner positioning protrusions 11e and 12e are provided at positions corresponding to the inner positioning recesses 14a. The inner positioning recess 14a is provided at the same position as the inner positioning protrusions 11e, 12e of the first metal plate 11 and the second metal plate 12 when viewed from the plate thickness direction D. The inner positioning recess 14a has the inner positioning protrusions 11e, 12e disposed therein.

[0035] <Decorative Panel 15> The decorative plate 15 is disposed on the upper surface 11c of the first metal plate 11. The decorative plate 15 is formed of a resin material such as melamine. The lower surface 15b of the decorative plate 15 is joined to the upper surface 11c of the first metal plate 11 by, for example, an adhesive. The outer peripheral edge 15c of the decorative plate 15 has a shape corresponding to the outer peripheral edges 11a, 12a of the first metal plate 11 and the second metal plate 12 when viewed from the plate thickness direction D. The outer peripheral edge 15c of the decorative plate 15 may be at least partially curved to correspond to the first metal plate 11 and the second metal plate 12 when viewed from the plate thickness direction D. In this embodiment, the entire outer peripheral edge 15c of the decorative plate 15 is curved when viewed from the plate thickness direction D. For example, a marble-like pattern is drawn on the upper surface 15a of the decorative plate 15. The outer peripheral edge 15c of the decorative plate 15 is located on the same plane as the outer peripheral surface 13a of the edge component 13. In other words, the outer peripheral edge 15c of the decorative board 15 coincides with the outer peripheral surface 13a of the edge component 13 when viewed in the board thickness direction D. The upper surface 15a of the decorative board 15 becomes the upper surface 10b of the top board 10 and forms a work surface.

[0036] <Side decorative part 16> The side decorative member 16 is disposed along the outer peripheral surface 13a of the edge component 13. The side decorative member 16 covers the outer peripheral edge 15c of the decorative plate 15, the outer peripheral edge 11a of the first metal plate 11, the outer peripheral surface 13a of the edge component 13, and the outer peripheral edge 12a of the second metal plate 12. The upper edge 16c of the side decorative member 16 is located on the same plane as the upper surface 15a of the decorative plate 15. The lower edge 16d of the side decorative member 16 is located on the same plane as the lower surface 12b of the second metal plate 12. The side decorative member 16 is formed of a resin material such as melamine, which is the same as the decorative plate 15. The side decorative member 16 is formed in a thin strip shape. In this embodiment, the side decorative member 16 is a sticker with an adhesive applied to one side. The inner surface 16a of the side decorative member 16 is attached to the outer peripheral surface 13a of the edge component 13 and the outer peripheral edge 15c of the decorative plate 15 by an adhesive. An outer surface 16b of the side decorative member 16 is patterned with, for example, a marble pattern similar to that of the upper surface 15a of the decorative board 15.

[0037] [Method of manufacturing the top plate 10] A method for manufacturing the top plate 10 will now be described with reference to the drawings. The manufacturing method of the table top 10 includes an edge component joining step, a clamping step, a decorative panel joining step, a decorative panel cutting step, and a side decorative member installation step.

[0038] <Edge component joining process> As shown in FIG. 5, in the edge component joining step, the worker places the edge component 13 on the upper surface 12c of the second metal plate 12. Before placing the edge component 13 on the upper surface 12c of the second metal plate 12, the worker applies an adhesive to the surface of the edge component 13 facing the second metal plate 12. The upper surface 12c of the second metal plate 12 and the edge component 13 are joined by the applied adhesive. The worker places the edge component 13 so that the outer peripheral surface 13a of the edge component 13 is aligned with the outer peripheral edge 12a of the second metal plate 12. The worker places the edge component 13 so that the outer peripheral surface 13a of the edge component 13 is positioned outside the outer peripheral edge 12a of the second metal plate 12 when viewed from the plate thickness direction D.

[0039] The worker forms the edge component 13 by connecting the multiple small pieces 20 on the upper surface 12c of the second metal plate 12. The worker arranges the edge component 13 so that the edge side positioning protrusion 12d of the second metal plate 12 is positioned within the edge side positioning recess 13b on the second metal plate 12 side.

[0040] After placing the edge constituent member 13, the worker places the spacer 14 on the upper surface 12c of the second metal plate 12 and inside the edge constituent member 13 when viewed from the plate thickness direction D. Before placing the spacer 14 on the upper surface 12c of the second metal plate 12, the worker applies an adhesive to the surface of the spacer 14 that faces the second metal plate 12. The upper surface 12c of the second metal plate 12 and the spacer 14 are joined by the applied adhesive.

[0041] <Clamping process> In the clamping process, first, the worker applies adhesive to the surfaces of the edge forming member 13 and the spacer 14 opposite to the surface facing the second metal plate 12. The worker places the first metal plate 11 on the opposite side of the second metal plate 12, sandwiching the edge forming member 13 and the spacer 14. The worker places the first metal plate 11 so that the outer peripheral edge 11a of the first metal plate 11 is aligned with the outer peripheral surface 13a of the edge forming member 13. The worker places the first metal plate 11 so that the outer peripheral edge 11a of the first metal plate 11 is located inside the outer peripheral surface 13a of the edge forming member 13 when viewed from the plate thickness direction D. The worker positions the first metal plate 11 so that the edge side positioning protrusion 11d of the first metal plate 11 is positioned within the edge side positioning recess 13b on the first metal plate 11 side.

[0042] Since adhesive is applied to the surfaces of the edge component 13 and the spacer 14 opposite the second metal plate 12, the underside 11b of the first metal plate 11 and the edge component 13 and spacer 14 are joined by the applied adhesive.

[0043] <Decorative board joining process> In the decorative plate joining process, a worker places the decorative plate 15 on the upper surface 11c of the first metal plate 11. Before placing the decorative plate 15 on the upper surface 11c of the first metal plate 11, the worker applies an adhesive to the upper surface 11c of the first metal plate 11. The upper surface 11c of the first metal plate 11 and the decorative plate 15 are joined by the applied adhesive. The worker places the decorative plate 15 so that the outer peripheral edge 15c of the decorative plate 15 is positioned outside the outer peripheral surface 13a of the edge component 13 when viewed from the plate thickness direction D.

[0044] <Decorative board cutting process> 4, in the decorative board cutting process, the worker cuts the decorative board 15 joined to the upper surface 11c of the first metal plate 11 along the outer peripheral surface 13a of the edge forming member 13. As a result, the outer peripheral edge 15c of the decorative board 15 is positioned on the same plane as the outer peripheral surface 13a of the edge forming member 13.

[0045] <Side decorative member installation process> In the side decorative member installation process, a worker uses an adhesive to attach the inner surface 16a of the side decorative member 16 to the outer peripheral surface 13a of the edge constituent member 13 and the outer peripheral edge 15c of the decorative plate 15. When attaching the side decorative member 16, the worker presses the inner surface 16a of the side decorative member 16 against the outer peripheral surface 13a of the edge constituent member 13 and the outer peripheral edge 15c of the decorative plate 15. This forms the side surface 10c of the top plate 10. The worker can manufacture the top plate 10 by carrying out the above steps.

[0046] [Effects] According to the above-described embodiment, the following actions and effects can be obtained. In this embodiment, the top plate 10 includes a first metal plate 11 and a second metal plate 12 disposed below the first metal plate 11 and spaced apart from each other. According to this configuration, the table top 10 has metal materials, which have greater rigidity than resin materials, wood, etc., spaced apart from each other above and below. Therefore, the rigidity of the table top 10 can be ensured. Furthermore, since the rigidity of the top plate 10 can be ensured as described above, the first metal plate 11 and the second metal plate 12 can be made thin, while the edge component 13 can be made to the minimum necessary thickness while ensuring the necessary side width. In this embodiment, an edge forming member 13 is disposed between the first metal plate 11 and the second metal plate 12. The outer peripheral surface 13a of the edge forming member 13 is formed along the outer peripheral edges 11a, 12a of the first metal plate 11 and the second metal plate 12. According to this configuration, the outer peripheral surface 13a of the edge forming member 13 becomes the side surface 10c of the tabletop 10, so that the side surface 10c of the tabletop 10 can be formed without bending the outer peripheral edges 11a, 12a of the first metal plate 11 or the second metal plate 12. Therefore, since the side surface 10c of the tabletop 10 can be formed without using a die for sheet metal processing the first metal plate 11 and the second metal plate 12, the tabletop 10 can be formed into various shapes other than a rectangular plate shape. In this embodiment, the edge component 13 is made of a material that is softer than the first metal plate 11 and the second metal plate 12 . According to this configuration, the outer peripheral surface 13a of the edge forming member 13 can be easily formed to match the shapes of the first metal plate 11 and the second metal plate 12. Since the outer peripheral surface 13a of the edge forming member 13 becomes the side surface 10c of the top plate 10, it becomes easy to form the top plate 10 into various shapes.

[0047] In this embodiment, at least a part of the outer circumferential edge 11a of the first metal plate 11 is curved. At least a part of the outer circumferential edge 12a of the second metal plate 12 is curved to correspond to the first metal plate 11. At least a part of the outer circumferential surface 13a of the edge component 13 is curved to correspond to the outer circumferential edges 11a, 12a of the first metal plate 11 and the second metal plate 12. According to this configuration, the outer peripheral surface 13a of the edge forming member 13 becomes the side surface 10c of the tabletop 10, so that the side surface 10c of the tabletop 10 can be formed without bending the outer peripheral edge 12a of the first metal plate 11 or the second metal plate 12, whose outer peripheral edges 11a, 12a are at least partially curved. Therefore, since the side surface 10c of the tabletop 10 can be formed using the first metal plate 11 and the second metal plate 12, whose outer peripheral edges 11a, 12a are at least partially curved, the tabletop 10 can be formed into various shapes other than a rectangular plate shape.

[0048] In this embodiment, the edge forming member 13 is a frame-shaped member disposed along the outer peripheral edges 11a, 12a of the first metal plate 11 and the second metal plate 12. According to this configuration, the inside of the edge component 13 is hollow. This allows the edge component 13 to be formed only in the portion necessary to form the side surface 10c of the tabletop 10, reducing the amount of material used, thereby making the tabletop 10 lighter.

[0049] In this embodiment, a spacer 14 is provided which is sandwiched between a first metal plate 11 and a second metal plate 12 and surrounded by an edge component 13 . According to this configuration, the inside of the edge component 13 is hollow to accommodate the spacer 14. As a result, the spacer 14 supports the portion of the first metal plate 11 that is not supported by the edge component 13, so that the rigidity of the tabletop 10 can be increased while reducing the weight of the tabletop 10.

[0050] For example, when the outer peripheral surface 13a of the edge component 13 is located inside the outer peripheral edges 11a, 12a of the first metal plate 11 and the second metal plate 12 as viewed from the plate thickness direction D, if the upper edge 16c and the lower edge 16d of the side decorative member 16 for decorating the side surface 10c of the top plate 10 are attached to the outer peripheral edges 11a, 12a of the first metal plate 11 and the second metal plate 12, respectively, a space is generated between the side decorative member 16 and the outer peripheral surface 13a of the edge component 13, so that the side decorative member 16 is easily peeled off. Also, when the side decorative member 16 is attached to the outer peripheral surface 13a of the edge component 13, the upper edge 16c and the lower edge 16d of the side decorative member 16 are warped by the outer peripheral edges 11a, 12a of the first metal plate 11 and the second metal plate 12, so that the side decorative member 16 is easily peeled off. In this embodiment, the outer peripheral surface 13a of the edge component 13 may be located outside the outer peripheral edges 11a, 12a of the first metal plate 11 and the second metal plate 12 when viewed in the plate thickness direction D. According to this configuration, the side decorative member 16 for decorating the side surface 10c of the top plate 10 can be attached to the outer peripheral surface 13a of the edge component 13, which can secure a thickness dimension compared to the first metal plate 11 and the second metal plate 12. At that time, the outer peripheral surface 13a of the edge component 13 is located outside the outer peripheral edges 11a, 12a of the first metal plate 11 and the second metal plate 12 when viewed from the plate thickness direction D. This makes it possible to prevent the upper edge 16c and the lower edge 16d of the side decorative member 16 from being warped by the outer peripheral edges 11a, 12a of the first metal plate 11 and the second metal plate 12. Therefore, since the side decorative member 16 can be reliably attached, the design of the side surface 10c of the top plate 10 can be improved. In addition, the side decorative member 16 can be attached by pressing a pressing member against the outer peripheral surface 13a of the edge component 13 without the outer peripheral edges 11a, 12a of the first metal plate 11 and the second metal plate 12 becoming an obstacle. This allows the side decorative member 16 to be reliably and easily attached to the outer peripheral surface 13a of the edge component 13. Therefore, the side surface 10c of the top plate 10 can be efficiently decorated.

[0051] In this embodiment, the top plate 10 includes a decorative plate 15 joined to the upper surface 11c of the first metal plate 11. An outer peripheral edge 15c of the decorative plate 15 is located on the same plane as the outer peripheral surface 13a of the edge component 13. According to this configuration, the outer peripheral edge 15c of the decorative plate 15 is located on the same plane as the outer peripheral surface 13a of the edge component 13. This allows the side decorative member 16 for decorating the side surface 10c of the tabletop 10 to be attached to the outer peripheral edge 15c of the decorative plate 15 and the outer peripheral surface 13a of the edge component 13 without creating unnecessary creases. This improves the design of the side surface 10c of the tabletop 10. In addition, the space between the edge component 13 and the decorative plate 15 can be completely covered by the side decorative member 16. This improves the design of the side surface 10c of the tabletop 10.

[0052] In this embodiment, the edge component 13 has a plurality of small pieces 20 connected to each other. With this configuration, the edge component 13 can be formed to match the shapes of the first metal plate 11 and the second metal plate 12 simply by connecting the plurality of small pieces 20. In this embodiment, the small piece 20 has an engagement claw 21 provided on one end surface 20a and an engagement recess 22 provided on the other end surface 20b, which engages with the engagement claw 21. According to this configuration, the plurality of small pieces 20 can be easily connected together simply by engaging the engaging claws 21 with the engaging recesses 22 .

[0053] In this embodiment, the outer shape of the tip end 21a of the engagement claw 21 is formed to be larger than the outer shape of the base end 21b. The engagement recess 22 has a shape corresponding to the engagement claw 21 when viewed from the plate thickness direction D. According to this configuration, when the engaging claw 21 of one small piece 20 engages with the engaging recess 22 of the other small piece 20 to connect the one small piece 20 to the other small piece 20, the one small piece 20 and the other small piece 20 can be prevented from moving apart in a direction intersecting with the plate thickness direction D. Therefore, the connection between the small pieces 20 can be prevented from being released during the manufacture of the tabletop 10.

[0054] In this embodiment, the edge forming member 13 has edge side positioning recesses 13b on the surfaces facing the first metal plate 11 and the second metal plate 12. The first metal plate 11 and the second metal plate 12 have edge side positioning protrusions 11d, 12d that protrude toward the edge forming member 13 on the surfaces facing the edge forming member 13. The edge side positioning protrusions 11d, 12d are provided at positions corresponding to the edge side positioning recesses 13b. According to this configuration, by simply arranging the edge side positioning protrusions 11d, 12d in the edge side positioning recesses 13b, the first metal plate 11 and the second metal plate 12 can be easily positioned with respect to the edge constituent member 13. This allows the table top 10 to be manufactured efficiently.

[0055] In this embodiment, the spacer 14 has an inner positioning recess 14a on the surface facing the first metal plate 11 and the second metal plate 12. The first metal plate 11 and the second metal plate 12 have inner positioning protrusions 11e, 12e that protrude toward the spacer 14 on the surface facing the spacer 14. The inner positioning protrusions 11e, 12e are provided at positions corresponding to the inner positioning recess 14a. According to this configuration, simply by arranging the inner positioning protrusions 11e, 12e in the inner positioning recesses 14a, the first metal plate 11 and the second metal plate 12 can be easily positioned with respect to the spacer 14. This allows the top plate 10 to be manufactured efficiently.

[0056] In this embodiment, the furniture with a tabletop 1 includes a tabletop 10 and a leg member 2 that supports the tabletop 10. According to this configuration, while the rigidity of the tabletop 10 is ensured by the metal material, it becomes easy to manufacture furniture 1 with tabletops 10 having various shapes.

[0057] In this embodiment, the manufacturing method for the top plate 10 includes an edge component joining process in which an edge component 13 made of a material softer than the metal forming the first metal plate 11 and the second metal plate 12 is arranged and joined to the upper surface 12c of the second metal plate 12, and a clamping process in which a first metal plate 11 having a shape corresponding to the second metal plate 12 is arranged and joined to the opposite side of the second metal plate 12, sandwiching the edge component 13. According to this configuration, it is possible to manufacture a tabletop 10 having a first metal plate 11 and a second metal plate 12 arranged below the first metal plate 11 at a distance. As a result, the tabletop 10 has metal materials having higher rigidity than resin materials, wood, etc., spaced apart from each other above and below. Therefore, the rigidity of the tabletop 10 can be ensured. An edge component 13 can be disposed between the first metal plate 11 and the second metal plate 12. The edge component 13 is made of a material softer than the metal forming the first metal plate 11 and the second metal plate 12, so that the outer peripheral surface 13a of the edge component 13 can be formed along the outer peripheral edges 11a, 12a of the first metal plate 11 and the second metal plate 12. As a result, the outer peripheral surface 13a of the edge component 13 becomes the side surface 10c of the top plate 10, so that the side surface 10c of the top plate 10 can be formed without bending the outer peripheral edges 11a, 12a of the first metal plate 11 or the second metal plate 12. Therefore, the side surface 10c of the top plate 10 can be formed without using a die for sheet metal processing the first metal plate 11 and the second metal plate 12, so that the top plate 10 can be formed into various shapes other than a rectangular plate shape. The edge component 13 is made of a material that is softer than the first metal plate 11 and the second metal plate 12. This makes it possible to easily form the outer peripheral surface 13a of the edge component 13 to match the shapes of the first metal plate 11 and the second metal plate 12. Since the outer peripheral surface 13a of the edge component 13 becomes the side surface 10c of the top plate 10, it becomes easy to form the top plate 10 into various shapes.

[0058] In this embodiment, in the edge component joining step, the edge component 13 formed in a frame shape is arranged along the outer peripheral edge 12a of the second metal plate 12. In the clamping step, the first metal plate 11 is arranged so that the outer peripheral edge 11a of the first metal plate 11 is along the edge component 13 formed in a frame shape. According to this configuration, the frame-shaped edge component 13 can be arranged along the outer periphery 11a, 12a of the first metal plate 11 and the second metal plate 12. This allows the inside of the edge component 13 to be hollow. Therefore, the edge component 13 can be formed only in the portion necessary to form the side surface 10c of the tabletop 10, reducing the amount of material used, and thus reducing the weight of the tabletop 10.

[0059] In this embodiment, in the edge component joining step, the spacer 14 is disposed on the upper surface 12c of the second metal plate 12 and inside the edge component 13 when viewed from the plate thickness direction D1. According to this configuration, the inside of the edge component 13 is hollow to accommodate the spacer 14. As a result, the spacer 14 supports the portion of the first metal plate 11 that is not supported by the edge component 13, so that the rigidity of the tabletop 10 can be ensured while reducing the weight of the tabletop 10.

[0060] In this embodiment, the manufacturing method of the top plate 10 includes a decorative plate joining step of joining the decorative plate 15 to the upper surface 11c of the first metal plate 11, and a decorative plate cutting step of cutting the decorative plate 15 joined to the upper surface 11c of the first metal plate 11. In addition, in the edge component joining step, the edge component 13 is arranged so that the outer peripheral surface 13a of the edge component 13 is located outside the outer peripheral edge 12a of the second metal plate 12 when viewed from the plate thickness direction D. In the clamping step, the first metal plate 11 is arranged so that the outer peripheral edge 11a of the first metal plate 11 is located inside the outer peripheral surface 13a of the edge component 13 when viewed from the plate thickness direction D. In the decorative plate cutting step, the decorative plate 15 is cut along the outer peripheral surface 13a of the edge component 13 after the clamping step. According to this configuration, the worker can position the outer peripheral edge 15c of the decorative board 15 on the same plane as the outer peripheral surface 13a of the edge constituent member 13 simply by cutting the decorative board 15. This allows the side decorative member 16 for decorating the side surface 10c of the tabletop 10 to be attached to the outer peripheral edge 15c of the decorative board 15 and the outer peripheral surface 13a of the edge constituent member 13 without creating unnecessary creases. This improves the design of the side surface 10c of the tabletop 10.

[0061] [Variations] In the above-described embodiment, the edge side positioning protrusions 11d, 12d and the inner positioning protrusions 11e, 12e are formed by recessing the first metal plate 11 or the second metal plate 12. However, as shown in Fig. 6, the edge side positioning protrusions 11d, 12d and the inner positioning protrusions 11e, 12e may be formed by cutting and raising the first metal plate 11 or the second metal plate 12 so as to protrude toward the edge component 13. Fig. 6 shows a modified example of the second metal plate 12 arranged below the edge component 13. 6, the edge side positioning protrusion 12d is formed by cutting out an angular C-shape from the second metal plate 12 when viewed from the plate thickness direction D, and tilting the cut-out portion upward by approximately 90 degrees. The inner positioning protrusion 12e is formed in the same manner as the edge side positioning protrusion 12d. The edge side positioning protrusions 11d and the inner side positioning protrusions 11e of the first metal plate 11 are formed in the same manner as the second metal plate 12.

[0062] Although the preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments. Addition, omission, substitution, and other modifications of the configuration are possible without departing from the spirit of the present invention. The present invention is not limited by the above description, but is limited only by the scope of the attached claims. For example, in the above embodiment, the decorative plate 15 is provided on the upper surface 11c of the first metal plate 11, but this is not limited to the above. The upper surface 11c of the first metal plate 11 itself may be used as a work surface without providing the decorative plate 15. Also, another plate material may be laminated between the decorative plate 15 and the first metal plate 11. Also, a plate material may be joined to the lower surface 12b of the second metal plate 12 for the purpose of decoration or protection. Also, the edge component 13 is not limited to being formed in a frame shape, and may be formed in a plate shape without a cavity inside, with a configuration not provided with the spacer 14. In addition, the outer peripheral edges 11a, 12a of the first metal plate 11 and the second metal plate 12 are the same shape, but this is not limited thereto, and the positions may be shifted when viewed in the plate thickness direction D. For example, the outer peripheral edge 11a of the first metal plate 11 may be located outside the outer peripheral edge 12a of the second metal plate 12, and the outer peripheral surface 13a of the edge component 13 may be inclined inward from the upper end to the lower end. Conversely to the above, the outer peripheral edge 11a of the first metal plate 11 may be located inside the outer peripheral edge 12a of the second metal plate 12, and the outer peripheral surface 13a of the edge component 13 may be inclined outward from the upper end to the lower end. At least, it is sufficient that the outer peripheral edges 11a, 12a are connected to each other via the outer peripheral surface 13a of the edge component 13. In addition, in the above embodiment, the spacer 14 is described as being joined to the first metal plate 11 and the second metal plate 12, but the spacer 14 does not have to be joined to the first metal plate 11 and the second metal plate 12. In the edge component joining step, the edge component 13 is disposed so that the outer peripheral surface 13a of the edge component 13 is aligned with the outer peripheral edge 12a of the second metal plate 12, and in the clamping step, the first metal plate 11 is disposed so that the outer peripheral edge 11a of the first metal plate 11 is aligned with the outer peripheral surface 13a of the edge component 13, but this is not limited to this. After the edge component joining step or the clamping step, the outer peripheral surface 13a of the edge component 13 may be formed so as to be aligned with the outer peripheral edges 11a, 12a of the first metal plate 11 and the second metal plate 12.

[0063] In addition, within the scope of the invention, the components in the above-described embodiments may be replaced with well-known components, and the above-described modified examples may be combined as appropriate. [Explanation of symbols]

[0064] 1. Display unit with tabletop 2... Leg member 10…Tabletop 11…First metal plate 11a...Outer edge 11b…Bottom surface (surface) 11c…Top surface 11d... Edge positioning protrusion (positioning protrusion) 12...Second metal plate 12a...Outer edge 12c…Top surface (surface) 12d... Edge positioning protrusion (positioning protrusion) 13...Edge component 13a...Outer surface 13b...Edge positioning recess (positioning recess) 14…Spacer 15…Decorative board D…Thickness direction

Claims

1. A first metal plate; a second metal plate disposed below the first metal plate and spaced apart from the first metal plate and having a shape corresponding to that of the first metal plate; an edge component made of a material softer than the metal forming the first metal plate and the second metal plate, the edge component being sandwiched between the first metal plate and the second metal plate and having an outer peripheral surface formed along the outer peripheral edges of the first metal plate and the second metal plate; A top plate equipped with.

2. The tabletop according to claim 1 , wherein the edge component is a frame-shaped member arranged along the outer periphery of the first metal plate and the second metal plate.

3. The tabletop of claim 2 further comprising a spacer sandwiched between the first metal plate and the second metal plate and surrounded by the edge component.

4. The edge component has a positioning recess on a surface facing the first metal plate and the second metal plate, The first metal plate and the second metal plate have positioning protrusions on the surfaces facing the edge component that protrude toward the edge component, The top plate according to claim 1 , wherein the positioning protrusion is provided at a position corresponding to the positioning recess.

5. A top plate according to any one of claims 1 to 4, A display unit with a tabletop comprising: a leg member supporting the tabletop.

6. a rim component joining step of arranging and joining a rim component made of a material softer than the metal forming the first metal plate and the second metal plate on one surface of a first metal plate and a second metal plate having shapes corresponding to each other; a clamping step of placing and joining one of the first metal plate and the second metal plate on the opposite side of one of the first metal plate and the second metal plate with the edge component sandwiched therebetween; A method for manufacturing a top plate comprising the steps of:

7. In the edge component joining step, the edge component formed in a frame shape is disposed along an outer peripheral edge of one of the first metal plate and the second metal plate, The method for manufacturing a tabletop as described in claim 6, wherein in the clamping process, the other of the first metal plate and the second metal plate is arranged so that the outer peripheral edge of the other of the first metal plate and the second metal plate is aligned along the edge component member formed in a frame shape.

8. A method for manufacturing a tabletop as described in claim 7, wherein in the edge component joining process, a spacer is arranged inside the edge component on one of the surfaces of the first metal plate and the second metal plate, when viewed from the thickness direction of the first metal plate.

9. a decorative plate joining step of joining a decorative plate to an upper surface of the first metal plate; a decorative board cutting step of cutting the decorative board joined to the upper surface of the first metal plate, In the edge component joining step, the edge component is disposed so that an outer peripheral surface of the edge component is positioned outside an outer peripheral edge of the second metal plate when viewed from a plate thickness direction of the first metal plate, In the clamping step, the first metal plate is disposed so that an outer peripheral edge of the first metal plate is positioned inside the outer peripheral surface of the edge component when viewed from the plate thickness direction, 9. The method for manufacturing a tabletop according to claim 6, wherein in the decorative board cutting step, after the clamping step, the decorative board is cut along the outer peripheral surface of the edge component.

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