Storage shelf and wiring structure

Abstract

To improve the appearance of a storage shelf by hiding a power cable from the front surface side and to facilitate maintenance of a lighting device.SOLUTION: A lighting device 6 includes lighting fixtures 64, 65 provided at the rear end of a shelf board 3 of a storage shelf 1 and a power cable 63 for power supply. The shelf board 3 has a storage recess 37 which is formed on the rear end and which stores the lighting fixtures 64, 65. The storage recess 37 has a substantially reverse U-shape in the cross-sectional view from the side and is open at the rear side. At least one side board 2 in multiple side surface parts 2 has a space 27 which is formed at the rear end of the at least one side board 2 and in which the power cable 63 is routed. The space 27 is formed in the hollow shape along the vertical direction of the rear end of at least one side board 2.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a storage shelf and a wiring structure. [Background technology]

[0002] 2. Description of the Related Art A conventional technique is known in which a lighting device that emits light rearward is attached to the rear end surface of a shelf board that divides a storage space into upper and lower sections, thereby illuminating the inner surface of the storage space. The shelf device described in Patent Document 1 is configured such that the shelf body is positioned so that the rear end face is separated from the back side of the storage space, and a lighting device is attached across almost the entire width of the rear end face. This allows the light from the lighting device to be effectively irradiated from almost the entire width of the shelf body toward the back side of the storage space, further improving the appearance. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5988254 Summary of the Invention [Problem to be solved by the invention]

[0004] In a conventional shelf device, a power cable for supplying power to a lighting device is stored in a wiring storage recess provided in a storage recess that holds the lighting main body. The part of the power cable that protrudes from the shelf device is wired to the back side of the storage space or to the inner walls on the left and right sides of the shelf body. However, if the protruding portion of the power cable is routed on the inner surface of the back side or the left and right inner walls of the storage space, the power cable will be exposed and will not look good. Also, if the protruding portion of the power cable is routed on the inner surface of the back side or the left and right inner walls of the storage space, maintenance will be difficult.

[0005] The present invention has been made in consideration of the above-mentioned circumstances, and its object is to improve the appearance of a storage shelf by making the power cable for power supply invisible from the front side when a lighting device is provided on the rear end surface of a shelf in a storage shelf, while also making it easy to perform maintenance on the lighting device. [Means for solving the problem]

[0006] The invention described in claim 1 is, for example, as shown in Figs. 1 to 9, a storage shelf 1 arranged along a surface of a wall W, A plurality of side portions 2 (side plates 2) arranged perpendicular to the wall W in a plan view; A shelf board 3 is disposed apart from the surface of the wall W and is provided between the plurality of side portions 2; and a lighting device 6 that emits light backward and is used as indirect lighting. The lighting device 6 includes: Lighting fixtures 64, 65 provided at the rear end portion of the shelf board 3 located on the wall W side; A power cable 63 for supplying power to the lighting fixtures 64 and 65, The shelf board 3 has a storage recess 37 formed at the rear end of the shelf board 3 and storing the lighting fixtures 64, 65, and the storage recess 37 is substantially U-shaped in cross section from the side and is open to the rear. At least one of the multiple side portions 2 has a space 27 (wiring space 27) formed at the rear end of the at least one side portion 2 and in which the power cable 63 is wired, and the space 27 is formed hollow along the vertical direction of the rear end of the at least one side portion 2.

[0007] According to the invention described in claim 1, the space 27 formed at the rear end of at least one of the side surfaces 2 is formed hollow along the vertical direction of the rear end of at least one of the side surfaces 2, so that the power cable 63 passed through this space 27 can be wired along the vertical direction of at least one of the side surfaces. Furthermore, since the lighting fixtures 64, 65 are stored in the storage recess 37 formed at the rear end of the shelf board 3, the power cable 63 for supplying power to the lighting fixtures 64, 65 can be easily routed from the space 27 formed at the rear end of at least one of the side surfaces 2 to the lighting fixtures 64, 65. Therefore, the power cable 63 can be made difficult to see from the front side of the storage shelf 1, and the appearance of the storage shelf 1 can be improved. Furthermore, the lighting fixtures 64, 65 are disposed in a storage recess 37 formed in the rear end of the shelf board 3 disposed away from the surface of the wall W, and the power cable 63 is wired in a space 27 formed in the rear end of at least one of the side surfaces 2 disposed perpendicular to the wall W, so that even if the main power source is hidden in a back part such as in the ceiling, under the floor, or behind the wall, most of the lighting device 6 is disposed on the front side of the surface of the wall W. Therefore, when performing maintenance on the lighting device 6, most of the work can be performed on the front side of the wall W, making it easy to perform maintenance on the lighting device 6.

[0008] The invention described in claim 2 is, for example, as shown in Figs. 1 to 3, in the storage shelf 1 described in claim 1, An opening 26c (26d, 26e) through which the power cable 63 is passed is formed on the shelf board 3 side surface of the rear end portion of the at least one side surface portion 2, The opening 26c (26d, 26e) is disposed facing the storage recess 37 of the shelf board 3, and is characterized in that it connects the space 27 and the storage recess 37 together.

[0009] According to the invention described in claim 2, the opening 26c (26d, 26e) formed on the surface of the rear end portion of at least one of the side portions 2 facing the shelf board 3 is disposed facing the storage recess 37 of the shelf board 3 and connects the space 27 to the storage recess 37, so that the power cable 63 can be wired directly from the space 27 to the storage recess 37 through the opening 26c (26d, 26e). This allows the power cable 63 to be wired so as not to be seen from the front side of the storage shelf 1, improving the appearance of the storage shelf 1.

[0010] The invention described in claim 3 is, for example, as shown in Figs. 1 to 3, in the storage shelf 1 described in claim 1, The shelf board 3 is A receiving portion 31 fixed to each of the surfaces of the side surface portions 2 on the shelf board 3 side; and a shelf board body 32 that is received by the receiving portion 31 and fixed to the receiving portion 31. The storage recess 37 is characterized in that it is formed at the rear end of the shelf board main body 32.

[0011] According to the invention described in claim 3, the receiving portion 31 is fixed to each of the surfaces of the side surface portions 2 facing the shelf board 3, and the storage recess 37 is formed in the rear end portion of the shelf board main body 32 received by and fixed to the receiving portion 31, so that the lighting fixtures 64, 65 can be stored and the power cable 63 can be wired at positions different from the fixed positions of the shelf board main body 32 to the side surface portions 2. This makes it easier to perform maintenance work on the lighting device 6.

[0012] The invention described in claim 4 is, for example, as shown in Figs. 1 to 3, in the storage shelf 1 described in claim 3, The shelf board body 32 is characterized by having fitting grooves 33 on both widthwise ends, which are formed in a substantially U-shape when viewed in cross section from the front, and into which the receiving portions 31 are fitted.

[0013] According to the invention described in claim 4, the shelf body 32 has fitting grooves 33 formed in a substantially U-shape in a cross-sectional view from the front at both widthwise ends, into which the receiving portions 31 are fitted, so that the shelf body 32 can be provided to span multiple side portions 2 with the receiving portions 31 fitted into the fitting grooves 33. This makes it possible to hide the receiving portions 31, unlike when the shelf body 32 is provided by placing it on the upper surface of the receiving portions 31, for example, and therefore makes the storage shelf 1 look better.

[0014] The invention described in claim 5 is, for example, as shown in Figs. 1 to 4, in the storage shelf 1 described in claim 1, The at least one side surface portion 2 is A receiving portion 21 fixed to the surface of the wall W; The receiving portion 21 is fixed to a side surface portion main body 22 (side plate main body 22).

[0015] According to the invention described in claim 5, the receiving portion 21 is fixed to the surface of the wall W, and the side portion main body 22 is fixed to the receiving portion 21, so that the entire storage shelf 1 can be fixed to the surface of the wall W and mounted on the wall.

[0016] The invention described in claim 6 is, for example, as shown in Figs. 1 to 4, in the storage shelf 1 described in claim 5, The side surface portion main body 22 is characterized in that it has a fitting groove 23 at its rear end located on the wall W side, which is formed in a substantially U-shape in a plan cross section and into which the receiving portion 21 is fitted.

[0017] According to the invention described in claim 6, side surface body 22 has fitting groove 23, which is formed in a substantially U-shape in a plan cross section and into which receiving portion 21 is fitted, at the rear end located on the wall W side, so that side surface body 22 can be provided on the surface of wall W with receiving portion 21 fitted into fitting groove 23. This makes it possible to hide receiving portion 21, thereby improving the appearance of storage shelf 1.

[0018] The invention described in claim 7 is, for example, as shown in Figs. 1 to 4 and Figs. 7 to 9, in the storage shelf 1 described in claim 6, A gap 27 is formed between the receiving portion 21 and the groove bottom of the fitting groove 23 of the side portion main body 22, and this gap 27 is characterized in that it serves as the space 27.

[0019] According to the invention described in claim 7, a gap 27 is formed between the receiving portion 21 and the bottom of the mating groove 23 of the side portion main body 22, and the gap 27 is configured as the space 27 through which the power cable 63 is wired. Therefore, when the receiving portion 21 is fitted into the mating groove 23 and the side portion main body 22 is fixed to the receiving portion 21, the space 27 can be easily formed between the receiving portion 21 and the bottom of the mating groove 23 without any hassle.

[0020] The invention described in claim 8 is the storage shelf 1 described in claim 7, The lighting device 6 has a power supply device 62 for supplying power to the lighting fixtures 64 and 65, and the power cable 63 connects the power supply device 62 and the lighting fixtures 64 and 65, The power supply device 62 is disposed inside the fitting groove 23 together with the receiving portion 21, An opening 26c (26d, 26e) through which the power cable 63 is passed is formed on the shelf board 3 side surface of the rear end portion of the at least one side surface portion 2, The opening 26c (26d, 26e) is disposed facing the storage recess 37 of the shelf board 3, and is characterized in that it connects the space 27 and the storage recess 37 together.

[0021] According to the invention described in claim 8, the power supply device 62 is disposed inside the fitting groove 23 together with the receiving portion 21, and an opening 26c (26d, 26e) through which the power cable 63 passes is formed on the surface of the shelf board 3 side at the rear end portion of at least one of the side surface portions 2, and the opening 26c (26d, 26e) is disposed facing the storage recess 37 of the shelf board 3 and communicates with the space 27 and the storage recess 37, so that the power cable 63 connecting the power supply device 62 disposed inside the fitting groove 23 and the lighting fixtures 64, 65 stored in the storage recess 37 of the shelf board 3 can be wired directly from the space 27 to the storage recess 37 through the opening 26c (26d, 26e). This allows the power cable 63 to be wired so as not to be seen from the front side of the storage shelf 1, improving the appearance of the storage shelf 1.

[0022] The invention described in claim 9 is, for example, as shown in Figs. 1, 2, 4, etc., in the storage shelf 1 described in claim 1, The table further includes a top plate 5 or a bottom plate 4 that is provided between the plurality of side portions 2, The lighting device 6 has a power supply device 62 for supplying power to the lighting fixtures 64 and 65, and the power cable 63 connects the power supply device 62 and the lighting fixtures 64 and 65, The top plate 5 or the bottom plate 4 is A receiving portion 51b, 41 fixed to the surface of the wall W; The top plate body 52 or the bottom plate body 42 is fixed to the receiving portion 51b, 41. The top plate body 52 or the bottom plate body 42 has a power supply storage recess 57 at the rear end of the top plate body 52 or the bottom plate body 42, which is formed in a substantially U-shape in cross section from the side and stores the power supply device 62, An opening 26b through which the power cable 63 is passed is formed on a surface of the rear end portion of the at least one side surface portion 2 on the side of the top plate 5 or the side of the base plate 4, The opening 26b is disposed facing the power source housing recess 57 and is characterized in that it connects the space 27 and the power source housing recess 57 to each other.

[0023] According to the invention described in claim 9, the opening 26b formed on the surface on the top plate 5 side or the bottom plate 4 side at the rear end of at least one of the side surface portions 2 is disposed facing the power source storage recess 57 and communicates with the space 27 and the power source storage recess 57, so that the power source cable 63 can be wired directly from the power source storage recess 57 to the space 27 through the opening 26b. This allows the power source cable 63 to be wired so as not to be seen from the front side of the storage shelf 1, thereby improving the appearance of the storage shelf 1.

[0024] The invention described in claim 10 is, for example, as shown in Figs. 7 to 9, in the storage shelves 1A, 1B, and 1C described in claim 1, The device further includes back plates 7, 8, and 9 that are provided across the multiple side portions 2, The side portions 2 are arranged perpendicular to the back plates 7, 8, and 9 in a plan view and are fixed to the back plates 7, 8, and 9. The shelf board 3 is characterized in that it is arranged spaced apart from the surfaces of the back boards 7, 8, and 9.

[0025] According to the invention described in claim 10, the storage shelves 1A, 1B, 1C are provided with back panels 7, 8, 9 that are provided across the multiple side sections 2, and the multiple side sections 2 are arranged perpendicular to the back panels 7, 8, 9 in a plan view and are fixed, so that the storage shelves 1A, 1B, 1C are formed into a substantially U-shape in a plan view. Therefore, the storage shelves 1A, 1B, 1C can be placed on the floor F in a self-supporting state as a piece of furniture.

[0026] The invention described in claim 11 is, for example, as shown in FIG. 5, in the storage shelf 1 described in claim 1, A magnet MG is provided at the end of each of the lighting fixtures 64 and 65 on the shelf board 3 side. The storage recess 37 is characterized in that a metal plate SP (thin steel plate SP) to which the magnet MG is attracted is provided.

[0027] According to the invention described in claim 11, a magnet MG is provided at the end of each of the lighting fixtures 64, 65 on the shelf board 3 side, and a metal plate SP to which the magnet MG is attracted is provided in the storage recess 37, so that the lighting fixtures 64, 65 can be attached to the groove bottom of the storage recess 37 by the magnetic force of the magnet MG. That is, the lighting fixtures 64, 65 are in a state in which they can be freely attached and detached from the groove bottom of the storage recess 37. As a result, when performing maintenance on the lighting fixtures 64, 65, the lighting fixtures 64, 65 can be easily attached and detached through the gap between the shelf board 3 and the wall W without using special tools, etc., so that maintenance work on the lighting fixtures 64, 65 can be easily performed.

[0028] The invention described in claim 12 is, for example, as shown in Figs. 1 to 3, Fig. 6, etc., in the storage shelf 1 described in any one of claims 1 to 11, The plurality of shelf boards 3 are provided across the plurality of side surface portions 2, The lighting fixtures 64, 65 are characterized in that they are stored in the storage recess 37 of at least one of the plurality of shelf boards 3.

[0029] According to the invention described in claim 12, a plurality of shelves 3 are arranged spanning a plurality of side portions 2, and the lighting fixtures 64, 65 are stored in the storage recesses 37 of at least one of the plurality of shelves 3, so that the lighting fixtures 64, 65 can be selectively stored in the storage recesses 37 of at least one or more shelves 3 among the plurality of shelves 3.

[0030] The invention described in claim 13 is the storage shelf 1 described in claim 12, The lighting device 6 has a power supply device 62 for supplying power to the lighting fixtures 64 and 65, and the power cable 63 connects the power supply device 62 and the lighting fixtures 64 and 65, The power supply device 62 is stored in the storage recess 37 of any one of the plurality of shelf boards 3, An opening 26c (26d, 26e) through which the power cable 63 is passed is formed on the surface of the rear end portion of the at least one side surface portion 2 on the side of the shelf board 3, The opening 26c (26d, 26e) is disposed facing the storage recess 37 in any one of the shelves 3, and is characterized in that it connects the space 27 and the storage recess 37 together.

[0031] According to the invention described in claim 13, the power supply device 62 is stored in the storage recess 37 of any one of the shelves 3, and an opening 26c (26d, 26e) through which the power cable 63 passes is formed on the surface of the rear end of at least one of the side surface portions 2 facing any one of the shelves 3, and the opening 26c (26d, 26e) is disposed facing the storage recess 37 of any one of the shelves 3 and communicates with the space 27 and the storage recess 37, so that the power cable 63 extending from the power supply device 62 stored in the storage recess 37 of any one of the shelves 3 can be wired directly from the storage recess 37 to the space 27 through the opening 26c (26d, 26e). This allows the power cable 63 to be wired so as not to be seen from the front side of the storage shelf 1, improving the appearance of the storage shelf 1.

[0032] The invention described in claim 14 is, for example, as shown in Figs. 1 to 9, a wiring structure of a power cable 63 for supplying power to a lighting device 6 that is provided in a storage shelf 1 arranged along a surface of a wall W and is used as indirect lighting by emitting light backward, The storage shelf 1 includes: A plurality of side portions 2 (side plates 2) arranged perpendicular to the wall W in a plan view; A shelf board 3 is disposed at a distance from the surface of the wall W and is provided between the plurality of side portions 2, The lighting device 6 includes: Lighting fixtures 64, 65 provided at the rear end portion of the shelf board 3 located on the wall W side; The power cable 63, The shelf board 3 has a storage recess 37 formed at the rear end of the shelf board 3 and storing the lighting fixtures 64, 65, and the storage recess 37 is substantially U-shaped in cross section from the side and is open to the rear. At least one of the side surface portions 2 has a space 27 formed at a rear end portion of the at least one side surface portion 2 and in which the power cable 63 is wired, and the space 27 is formed hollow along the up-down direction of the rear end portion of the at least one side surface portion 2, A plurality of openings 26b to 26e through which the power cable 63 is passed are formed in the surface of the shelf board 3 side at the rear end portion of the at least one side surface portion 2, One opening 26c (26d, 26e) of the plurality of openings 26b to 26e is arranged facing the storage recess 37 of the shelf board 3 and communicates the space 27 with the storage recess 37, The power cable 63 is characterized in that it is routed from the one opening 26c (26d, 26e) to the storage recess 37 and connected to the lighting fixtures 64, 65.

[0033] According to the invention described in claim 14, one opening 26c (26d, 26e) of the multiple openings 26b-26e formed on the surface of the rear end portion of at least one of the side surface portions 2 facing the shelf board 3 is disposed facing the storage recess 37 of the shelf board 3 and communicates between the space 27 and the storage recess 37, and the power cable 63 is wired from the one opening 26c (26d, 26e) to the storage recess 37 and connected to the lighting fixtures 64, 65, so that the power cable 63 wired from the space 27 to the storage recess 37 through the one opening 26c (26d, 26e) can be connected to the lighting fixtures 64, 65 at a position that is difficult to see from the front side of the storage shelf 1. This can improve the appearance of the storage shelf 1.

[0034] The invention as recited in claim 15 provides, for example, as shown in Figs. 1 to 4, in the wiring structure as recited in claim 14, The lighting device 6 further includes a power supply device 62 for supplying power to the lighting fixtures 64 and 65. The power cable 63 connects the power supply device 62 and the lighting fixtures 64 and 65. The plurality of openings 26b to 26e includes another opening 26b formed at a height position different from that of the one opening 26c, The power cable 63 extending from the power supply unit 62 is wired into the space 27 through the other opening 26b, and is further wired into the storage recess 37 through the one opening 26c and connected to the lighting fixtures 64, 65.

[0035] According to the invention described in claim 15, the multiple openings 26b to 26e include another opening 26b formed at a different height position from the one opening 26c, and the power cable 63 extending from the power supply device 62 is wired into the space 27 through the other opening 26b, and is further wired to the storage recess 37 through the one opening 26c and connected to the lighting fixtures 64 and 65. Therefore, the power cable 63 extending from the power supply device 62 can be directly wired from the power supply storage recess 57 to the space 27 through the other opening 26b. Furthermore, the power cable 63 wired from the power supply storage recess 57 to the space 27 can be directly wired from the space 27 to the storage recess 37 through the one opening 26c. That is, the power supply device 62 and the lighting fixtures 64 and 65 can be reliably connected by the power cable 63 wired from the power supply storage recess 57 to the storage recess 37 through the space 27. This allows the power cable 63 connecting the power supply device 62 and the lighting fixtures 64, 65 to be wired so as not to be seen from the front side of the storage shelf 1, thereby improving the appearance of the storage shelf 1. Effect of the Invention

[0036] According to the present invention, when a lighting device is provided on the rear end surface of a shelf in a storage shelf, the power cable for power supply is made invisible from the front side, improving the appearance of the storage shelf and making it easy to perform maintenance on the lighting device. [Brief description of the drawings]

[0037] [Figure 1] FIG. 4 is a perspective view for explaining a wiring structure of the storage shelf and the lighting device. [Diagram 2] 4 is a cross-sectional view for explaining a wiring structure of the storage shelf and the lighting device. FIG. [Diagram 3] 3 is a cross-sectional view taken along line III-III in FIG. 2, which shows a schematic diagram of a shelf board. [Figure 4] 4 is an end view taken along line IV-IV in FIG. 2, which shows a schematic view of the top plate. [Diagram 5] 10 is a cross-sectional view for explaining a mounting structure of a lighting fixture. FIG. [Figure 6] 13 is a schematic diagram for explaining another example of the wiring structure of the lighting device. FIG. [Figure 7] FIG. 11 is a cross-sectional plan view illustrating a storage shelf having a back panel, with the shelf panel omitted. [Figure 8] FIG. 11 is a cross-sectional plan view illustrating a storage shelf having a back panel, with the shelf panel omitted. [Figure 9] FIG. 11 is a cross-sectional plan view illustrating a storage shelf having a back panel, with the shelf panel omitted. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0038] Hereinafter, the embodiments of the present invention will be described with reference to the drawings. However, the embodiments described below are subject to various limitations that are technically preferable for carrying out the present invention, but the technical scope of the present invention is not limited to the following embodiments and illustrated examples. Note that the directions in the following embodiments and illustrated examples are set solely for the convenience of explanation.

[0039] In Fig. 1 and other figures, reference numeral 1 denotes a storage shelf. This storage shelf 1 is fixed to a wall W of a room. In this embodiment, the storage shelf 1 is provided between the floor F and the ceiling C of the room. In other words, the storage shelf 1 has a vertical dimension set to be equal to the ceiling height of the room. The storage shelf 1 of this embodiment includes a plurality of side panels 2, a plurality of shelf panels 3, a base panel 4, a top panel 5, and a lighting device 6. In this embodiment, the shelf boards 3 are arranged in two tiers (two pieces), one above the other. In other words, a total of three spaces, the spaces above each shelf board 3 and the base board 4, are used as storage spaces. However, the number of shelves 3 is not limited to this, and may be one, or three or more.

[0040] <About multiple side panels> The side panels 2 constitute the side surfaces of the storage shelf 1 across which the shelf panels 3 are installed, and a plurality of side panels 2 are used in this embodiment as shown in Figures 1 to 4. These side panels 2 are arranged at intervals on the left and right and perpendicular to the wall W. In other words, they are arranged so as to protrude from the wall surface (surface) of the wall W toward the center of the room. The spacing between the side panels 2 is set to be substantially equal to the length of the shelf panel 3 (the dimension in the left-right direction: the width dimension) or slightly longer.

[0041] In addition, the side panels 2 have a flush structure with a lightweight base material as part of the core material, and are lighter than wooden shelves of the same size. Such a side panel 2 basically comprises a receiving portion 21 that is attached to a wall W, and a shelf board main body 22 that is fixed to the receiving portion 21 and has a flush structure.

[0042] In this embodiment, the receiving portion 21 is a long crosspiece made of, for example, LVL (Laminated Veneer Lumber) or a square timber, which is arranged in a direction perpendicular to the floor F (vertical) and fixed to the wall W. Such a receiving portion 21 is fixed to the wall W by a fastener such as a nail or a screw. An adhesive may also be used in combination. The position of the receiving portion 21 where the fastener is to be provided may be countersunk so that the head of the fastener does not protrude. In addition, in this embodiment, the receiving portion 21 is composed of a single crosspiece whose length extends between the floor F and the ceiling C, but this is not limited to this and may also be composed of multiple crosspieces.

[0043] A fitting groove 23 into which the receiving portion 21 attached to the wall W is fitted is formed at the rear end of the side plate body 22. The fitting groove 23 is formed in a concave (U-shaped) shape in a plan view and is open toward the rear. In the present embodiment, the fitting groove 23 is also open upward and downward, but is not limited thereto and may be closed upward and downward. The rear end of the side panel body 22 is fixed to the receiving portion 21 by adhesive with the receiving portion 21 fixed to the wall W fitted into the fitting groove 23. However, this is not limited to the above, and the rear end of the side panel body 22 may be fixed to the receiving portion 21 from the side with a fastener such as a screw with the receiving portion 21 fixed to the wall W fitted into the fitting groove 23. When the storage shelf 1 is fixed in this manner with a fastener such as a screw, the storage shelf 1 can be relocated.

[0044] The side panel body 22 includes a core material and a decorative plate 26 that covers the core material. In other words, most of the surface of the side panel body 22 is covered with the decorative plate 26, and the portion covered with the decorative plate 26 is the core material.

[0045] The decorative board 26 is formed by attaching a decorative sheet to the surface of a base board material made of, for example, MDF (medium density fiberboard). Although the base board material has been described as being made of MDF, this is not limited to this and other fiberboards, wood boards, etc. may also be used. The decorative sheet may have a pattern, such as a wood grain pattern, or may be plain. Such decorative plate 26 is attached to the core material to form the fitting groove 23 at the rear end of the side plate main body 22. More specifically, the decorative plate 26 is attached to the front end surface of the core material, and is attached to each of the left and right side surfaces of the core material so as to protrude rearward (toward the wall W) beyond the core material. The fitting groove 23 is formed by the rearward protruding ends of the left and right decorative plates 26 and the rear end surface of the core material.

[0046] The core material includes a lightweight base material 24 and a fixing substrate material 25 . The lightweight base material 24 is lighter than wood and is made of a paper honeycomb formed from paper material in a honeycomb shape. As the lightweight base material 24, other than paper honeycomb, it is possible to use a plastic honeycomb in which a plastic plate is formed into a honeycomb shape, urethane foam or polystyrene foam formed into a rectangular parallelepiped shape, or the like.

[0047] The fixed base material 25 is a base material to which a receiving portion 31 (described later) of the shelf board 3 is fixed. Such fixed base material 25 is a core material made of LVL or square timber, for example, and is arranged at three positions spaced apart from each other in the lightweight base material 24: two positions at the front end and one position at the rear end. The two fixed base materials 25 at the front end include a fixed base material 25 located at the frontmost part of the core material, and a fixed base material 25 located toward the front of the core material with a gap between them and the frontmost fixed base material 25. For ease of explanation, in the following explanation, the frontmost of the three fixed base materials 25 will be referred to as the first fixed base material 25a, the second from the front as the second fixed base material 25b, and the rearmost as the third fixed base material 25c. The third fixing base material 25c constitutes the groove bottom of the fitting groove 23. That is, the fitting groove 23 is formed by the wall W side surface of the third fixing base material 25c and the inner surface of a portion of the decorative board 26 that protrudes toward the wall W side beyond the third fixing base material 25c. The multiple fixing base members 25 are arranged along the length of the side panel 2. Therefore, they also function as a core (framework) of the side panel 2.

[0048] The lightweight base material 24 is disposed between the fixed base materials 25 disposed in the three locations. Therefore, the lightweight base material 24 is disposed in one location closer to the front and one location closer to the rear. The lightweight base material 24 and each fixed base material 25 are bonded with an adhesive to form a core material. The front panel of the decorative panel 26 is adhered to the front end face of such a core material, and the left and right side panels of the decorative panel 26 are adhered to the left and right side surfaces of the core material, respectively, thereby forming the side panel body 22.

[0049] In this embodiment, the protruding dimension of the receiving portion 21 is set shorter than the groove depth dimension (depth dimension: dimension in the front-rear direction) of the fitting groove 23, and the end face of the receiving portion 21 in the protruding direction does not reach the groove bottom (the rear end face of the third fixed base material 25c) of the fitting groove 23. As a result, a gap 27 is formed between the end face of the receiving portion 21 in the protruding direction and the groove bottom surface of the fitting groove 23. The gap 27 is a space 27 (hereinafter, wiring space 27) through which the electric wires (power line 61, power cable 63, extension power cable 63) of the lighting device 6 are passed, and is formed from the upper end to the lower end of the side plate 2. That is, the electric wires of the lighting device 6 can be wired from the upper end to the lower end of the side plate 2. In addition to the above-mentioned electric wires, devices such as sensors and pipes may also be passed through the wiring space 27.

[0050] <About multiple shelves> 1 to 3, the shelf board 3 is disposed at a distance from the floor F and the ceiling C, and is provided to span between the left and right side boards 2, with items being placed and stored on the upper surface. In other words, the space above the shelf board 3 is used as a storage space. In this embodiment, a plurality of shelf boards 3 are used, and these plurality of shelf boards 3 are disposed at intervals from each other vertically. The rear ends of the shelves 3 are disposed with a gap between them and the wall surface of the wall W. In other words, the shelves 3 are disposed with a gap between them and the wall surface (surface) of the wall W. Lighting fixtures 64, 65 of the lighting device 6 are provided on the rear end surfaces of the shelves 3. The gap between the rear ends of the shelves 3 and the wall W is set to a dimension that allows at least the lighting fixtures 64, 65 to pass through.

[0051] Furthermore, like the side panels 2, the shelf boards 3 have a flush structure with a lightweight base material as part of the core material, and are lighter than wooden shelves of the same size. Such a shelf board 3 has a basic structure including a plurality of receiving portions 31 attached to a plurality of side panels 2, and a shelf board main body 32 having a flush structure that is bridged and fixed between the plurality of receiving portions 31.

[0052] The receiving portion 31 is a crosspiece similar to the receiving portion 21 in the side panel 2 described above, and is arranged horizontally and fixed to the fixed base material 25 (second fixed base material 25b and third fixed base material 25c) of the side panel 2 in contact with the side surface of the side panel 2. Such a receiving portion 31 is fixed to the fixing base material 25b, 25c by driving a fastener such as a nail or a screw into the fixing base material 25b, 25c of the side panel 2. An adhesive may also be used in combination. The position of the receiving portion 31 where the fastener is provided may be countersunk to prevent the head of the fastener from protruding. The length of the receiving portion 31 is set shorter than the dimension of the side panel 2 in the front-rear direction. The front end of the receiving portion 31 is disposed at a position not reaching the first fixed base material 25a, which is the forwardmost of the multiple fixed base materials 25 in the side panel 2. The rear end of the receiving portion 31 is disposed at a position not protruding rearward significantly from the third fixed base material 25c, which is the rearmost of the multiple fixed base materials 25 in the side panel 2.

[0053] At both left and right ends of the shelf body 32, fitting grooves 33 into which the receiving parts 31 attached to the side panels 2 are fitted are formed. The fitting grooves 33 are formed in a concave (U-shaped) shape in a cross-sectional view from the front (cross-sectional view when the shelf panel 3 is divided into front and rear parts) and are open toward both left and right sides and toward the rear. The front is closed. The left and right ends of the shelf board main body 32 are fixed to the receiving parts 31 attached to the side panels 2 with an adhesive, with the receiving parts 31 fitted into the fitting grooves 33. However, this is not limited to the above, and the left and right ends of the shelf board main body 32 may be fixed to the receiving parts 31 from the top or bottom with fasteners such as screws, with the receiving parts 31 fitted into the fitting grooves 33. When fixed with fasteners such as screws in this manner, the position of the shelf board 3 can be changed.

[0054] A storage recess 37 is formed at the rear end of the shelf body 32 in which the lighting fixtures 64, 65 of the lighting device 6 are stored. The storage recess 37 is a groove formed in a concave (U-shape) in a cross-sectional view from the side (cross-sectional view when the shelf 3 is divided into left and right halves), and is open toward the rear and both the left and right sides. The storage recess 37 is open toward both the left and right sides, and the left and right fitting grooves 33 are open toward the rear. Therefore, the storage recess 37 and the left and right fitting grooves 33 are spatially connected to each other in a U-shape.

[0055] The shelf board body 32 includes a core material and a decorative plate 36 that covers the core material. In other words, most of the surface of the shelf board body 32 is covered with the decorative plate 36, and the portion covered with the decorative plate 36 is the core material.

[0056] The decorative board 36 is, like the decorative board 26 in the side panel 2 described above, formed by attaching a decorative sheet to the surface of a base board material made of MDF, but is not limited to this. Such decorative plate 36 is attached to the core material to form fitting grooves 33 at both left and right ends of shelf board main body 32 and a storage recess 37 at the rear end.

[0057] More specifically, the left-right dimension of the decorative plate 36 is set to be longer than the left-right dimension of the core material. The decorative plate 36 having such dimensions is attached to the front end face of the core material, and is also attached to the upper and lower faces of the core material, with both left and right ends protruding laterally beyond the left and right ends of the core material. As a result, the fitting groove 33 is formed by the upper and lower parts of the decorative plate 36 that protrude beyond the left and right end faces of the core material and the left and right end faces of the core material. The portion of the decorative plate 36 attached to the front end surface of the core material contacts the front end surface of the receiving portion 31. This allows the shelf board body 32 to be positioned in the front-rear direction.

[0058] Furthermore, the front-rear dimension of the portion of the decorative plate 36 attached to the upper and lower surfaces of the core material is set to be longer than the front-rear dimension of the core material. The decorative plate 36 with such dimensions is attached to the front end surface of the core material as described above, and the core material is arranged close to the front of the decorative plate 36, so that the rear ends of the portions attached to the upper and lower surfaces of the core material protrude rearward beyond the rear end surface of the core material. As a result, the storage recess 37 is formed by the upper and lower portions of the decorative plate 36 that protrude beyond the rear end surface of the core material and the rear end surface of the core material. The upper and lower parts of the decorative plate 36 that protrude beyond the rear end surface of the core material are folded inward and glued to increase their thickness (see FIG. 5). This makes it possible to reinforce the upper and lower parts that protrude beyond the rear end surface of the core material.

[0059] The core material is made of a lightweight base material 34 . The lightweight base material 34 is made of a paper honeycomb, similar to the lightweight base material 24 in the side panel 2 described above, but is not limited to this. Furthermore, the core material may include crosspiece materials that function as the core material (framework) of the shelf boards 3 in addition to the lightweight base material 34. When the core material includes crosspiece materials, the crosspiece materials are preferably distributed and arranged at the front and rear parts of the core material. Furthermore, the rear end surface of the lightweight base material 34, which is the core material, forms the groove bottom of the storage recess 37 as described above, and a thin steel plate SP, which will be described later, is attached to the rear end surface.

[0060] Since the shelf body 32 is disposed apart from the wall surface of the wall W and is supported only by the left and right receiving parts 31 fixed to the left and right side panels 2, there is a demand for the shelf body 32 to be firmly and reliably fixed to the receiving parts 31. Therefore, the receiving parts 31 that receive the shelf body 3 are set to have a longer protruding dimension than the other receiving parts (for example, the first receiving part 51a of the top panel 5). In other words, the receiving parts 31 of the shelf body 3 are longer in the width direction (left and right direction) perpendicular to the length direction than the other receiving parts. This ensures a longer protruding dimension from the side surface of the side panel 2 and increases the contact area of ​​the shelf body 32 with the inner surface of the fitting groove 33, so that the shelf body 32 can be firmly and reliably fixed to the receiving parts 31.

[0061] As described above, the storage recess 37 is a space in which the lighting fixtures 64, 65 of the lighting device 6 are stored, and as shown in Figs. 2 and 5, the rear ends of the decorative panels 36 are provided above and below. The left and right sides of the storage recess 37 are open, and the side panels 2 are provided beyond them. Therefore, the storage recess 37 is substantially open only to the rear. Therefore, the lighting fixtures 64, 65 provided in the storage recess 37 irradiate light toward the rear wall W, functioning as indirect lighting. In addition, by increasing the rearward protruding dimension of the rear end of the decorative panel 36, the vertical lighting range provided by the lighting fixtures 64, 65 can be narrowed, and conversely, by shortening the rearward protruding dimension, the vertical lighting range provided by the lighting fixtures 64, 65 can be widened.

[0062] In this embodiment, the shelf boards 3 are two levels, one above the other, but this is not limited to this and may be one level or three or more levels. The number of shelves 3 is not particularly limited, since the shelves 3 can be provided at any height depending on the mounting position of the receiving portion 31. However, since the work of attaching and detaching the lighting fixtures 64, 65 provided at the rear end of the shelves 3 is performed by inserting an arm from the front side of the storage shelf 1 to the rear end side of the shelves 3, the interval between adjacent shelves 3 in the vertical direction is set to at least be large enough for a person's arm to enter.

[0063] <About the base plate> 1 and 2, the base plate 4 is disposed in contact with the floor F and is provided to span between the left and right side plates 2, with items placed and stored on the upper surface. In other words, the space above the base plate 4 is used as a storage space. The rear end of the base plate 4 is disposed in contact with the wall surface of the wall W. In other words, the rear end surface of the base plate 4 is flush with the rear end surface of the side plate 2.

[0064] Furthermore, like the side panels 2 and shelf boards 3, the base board 4 has a flush structure with a lightweight base material as part of the core material, and is lighter than a wooden shelf board of the same size. Such a base board 4 has a basic structure consisting of a plurality of receiving parts 41 attached to the lower ends of a plurality of side panels 2, and a flush-structured base board main body 42 that is bridged and fixed between these multiple receiving parts 41.

[0065] The receiving portion 41 is a crosspiece similar to the receiving portions 21, 31 of the side panel 2 and the shelf panel 3 described above, and is arranged horizontally and fixed to the side panel 2 with fasteners such as nails or screws while in contact with the side surface of the side panel 2. An adhesive may also be used in combination. The position of the receiving portion 41 where the fastener is to be provided may be countersunk to prevent the head of the fastener from protruding. The length of the receiving portion 41 is set to be slightly shorter or approximately equal to the length from the front end to the rear end of the side panel 2. Therefore, the front end of this receiving portion 41 is fixed to the first fixed base material 25a of the side panel 2 or the vicinity of the first fixed base material 25a with a fastener, and the rear end is fixed to the receiving portion 21 of the side panel 2 with a fastener.

[0066] At both left and right ends of the base plate body 42, fitting grooves 43 into which the receiving parts 41 attached to the side plates 2 are fitted are formed. The fitting grooves 43 are formed in a concave (U-shaped) shape in a cross-sectional view from the front, and are open toward both the left and right sides and toward the rear. The front is closed. The left and right ends of the base board main body 42 are fixed to the receiving parts 41 attached to the side panels 2 with an adhesive, with the receiving parts 41 fitted into the fitting grooves 43. However, this is not limited to the above, and the left and right ends of the base board main body 42 may be fixed to the receiving parts 41 from above with fasteners such as screws, with the receiving parts 41 fitted into the fitting grooves 43. When fixed with fasteners such as screws in this manner, the base board 4 can be removed.

[0067] The base board body 42 includes a core material and a decorative plate 46 that covers the core material. In other words, most of the surface of the base board body 42 is covered with the decorative plate 46, and the portion covered with the decorative plate 46 is the core material.

[0068] The decorative board 46 is a board in which a decorative sheet is attached to the surface of a base board made of MDF, similar to the decorative boards 26 and 36 of the side boards 2 and shelf boards 3 described above, but is not limited thereto. The left-right dimension of such a decorative board 46 is set to be longer than the left-right dimension of the core material. The decorative board 46 having such dimensions is attached to the front end surface of the core material, and is attached to the upper and lower surfaces of the core material, and both left and right ends protrude laterally beyond the left and right ends of the core material. As a result, the fitting groove 43 is formed by the upper and lower parts of the decorative board 46 that protrude beyond the left and right end surfaces of the core material and the left and right end surfaces of the core material. The portion of the decorative plate 46 attached to the front end surface of the core material contacts the front end surface of the receiving portion 41. At the same time, the rear end of the decorative plate 46 abuts against the wall surface of the wall W. This allows the base plate body 42 to be positioned in the front-rear direction.

[0069] The core material is made of a lightweight base material (not shown). The lightweight base material is made of a paper honeycomb, similar to the lightweight base materials 24, 34 of the side panel 2 and shelf board 3 described above, but is not limited to this. Furthermore, the core material may contain, in addition to the lightweight base material, crosspiece materials that function as the core material (framework) of the base board 4. When the core material contains crosspiece materials, the crosspiece materials are preferably distributed and arranged at the front and rear parts of the core material.

[0070] <About the tabletop> 1, 2 and 4, the top plate 5 is disposed in contact with the ceiling C and is provided so as to span between the left and right side plates 2. Since the top plate 5 of this embodiment is disposed in contact with the ceiling C as described above, no articles can be placed on the top surface, but if it is disposed with a gap from the ceiling C, articles can be placed on the top surface of the top plate 5 for storage. In this case, the space above the top plate 5 is used as a storage space. In addition, the rear end of the top plate 5 is disposed in contact with the surface of the wall W, and the rear end surface of the top plate 5 is flush with the rear end surfaces of the side plates 2. In other words, the rear end surfaces of the frame portion of the storage shelf 1, which is made up of the multiple side plates 2, the base plate 4, and the top plate 5, are flush with each other, and when the storage shelf 1 is installed, the rear end surface is in contact with the wall surface.

[0071] Furthermore, like the side panels 2 and shelf panel 3, the top panel 5 has a flush structure with a lightweight base material as part of the core material, and is lighter than a wooden shelf panel of the same size. Such a tabletop 5 has a basic structure consisting of a plurality of first receiving portions 51a attached to the upper ends of a plurality of side panels 2, a second receiving portion 51b attached to the upper end of the wall W, and a flush-structure tabletop main body 52 fixed to the plurality of first receiving portions 51a and second receiving portions 51b and spanning between the plurality of side panels 2.

[0072] The first receiving portion 51a and the second receiving portion 51b are crosspieces similar to the receiving portions 21, 31 of the side plate 2 and the shelf plate 3 described above. The first receiving portion 51a and the second receiving portion 51b are disposed horizontally, with the first receiving portion 51a receiving a side end of the top plate 5 and the second receiving portion 51b receiving a rear end of the top plate 5.

[0073] First, the first receiving portion 51a is fixed to the fixing base material 25 (the first fixing base material 25a and the third fixing base material 25c) of the side panel 2 by fasteners such as nails or screws while in contact with the side surface of the side panel 2. An adhesive may also be used in combination. The position of the first receiving portion 51a where the fastener is to be provided may be countersunk to prevent the head of the fastener from protruding. The length of the first receiving portion 51a is set shorter than the length of the receiving portion 41 of the base plate 4. The front end of the first receiving portion 51a is located at the front end of the side plate 2, and the rear end is located at a position that does not protrude farther rearward than the third fixed base material 25c that is located at the rearmost of the multiple fixed base materials 25. Therefore, the front end of this first receiving portion 51a is fixed to the first fixed base material 25a of the side plate 2 with a fastener, and the rear end is fixed to the third fixed base material 25c of the side plate 2 with a fastener. The protruding dimension of the first receiving portion 51 a from the side plate 2 is set to be shorter than the protruding dimension of the receiving portion 31 of the shelf board 3 from the side plate 2 .

[0074] At both left and right end portions of the tabletop body 52, fitting grooves 53 into which the first receiving portions 51a attached to the side plates 2 are fitted are formed. The fitting grooves 53 are formed in a concave (U-shaped) shape in a cross-sectional view from the front, and are open toward both left and right sides and toward the rear. The front is closed. When the first receiving portion 51a is fitted in the fitting groove 53, the groove bottom of the fitting groove 53 and the protruding direction side end face of the first receiving portion 51a are close enough to each other to leave a very small gap, or are in contact with each other.

[0075] Both left and right ends of the tabletop body 52 are fixed to the first receiving portion 51a from the underside with fasteners such as screws, with the first receiving portion 51a attached to the side panel 2 fitted into the fitting groove 53. Therefore, the tabletop body 52 can be removed from the receiving portion 51. However, this is not limited to this, and both left and right ends of the tabletop body 52 may be fixed to the first receiving portion 51a with an adhesive, with the first receiving portion 51a fitted into the fitting groove 53. When fixed with an adhesive in this way, the bonding strength of the tabletop body 52 to the first receiving portion 51a is improved, and thus the connection strength between the side panel 2 and the tabletop 5 can be improved.

[0076] The second receiving portion 51b is fixed to the wall W by a fastener such as a nail or a screw while in contact with the wall surface (surface) of the wall W. An adhesive may also be used in combination. The position of the second receiving portion 51b where the fastener is to be provided is countersunk so that the head of the fastener does not protrude. The length of the second receiving portion 51b is set to be shorter than the width (dimension in the left-right direction) of the top plate 5 and longer than the length (dimension in the left-right direction) of the power supply device 62. Further, the projection dimension from the wall surface of the second receiving portion 51b is set to be approximately the same as the projection dimension from the side plate 2 of the first receiving portion 51a.

[0077] The power supply device 62 of the lighting device 6 is stored in the rear end of the tabletop body 52, and a power supply storage recess 57 into which the second receiving portion 51b is fitted is formed. The power supply storage recess 57 is a groove formed in a concave (U-shaped) shape in cross section from the side, and is open toward the rear and both the left and right sides. The power supply storage recess 57 is open toward both the left and right sides, and the left and right fitting grooves 53 are open toward the rear. Therefore, the power supply storage recess 57 and the left and right fitting grooves 53 are spatially connected to each other in a U-shape.

[0078] When the second receiving portion 51b is fitted into the power supply storage recess 57, a gap is formed between the groove bottom of the power supply storage recess 57 and the protruding side end face of the second receiving portion 51b, sufficient to store the power supply unit 62 in the lighting device 6. More specifically, the protruding dimension of the second receiving portion 51b is set shorter than the groove depth dimension (depth dimension: dimension in the front-rear direction) of the power supply storage recess 57, and the end face of the second receiving portion 51b in the protruding direction does not reach the groove bottom (rear end face of the core material) of the power supply storage recess 57. As a result, a gap is formed between the end face of the second receiving portion 51b in the protruding direction and the groove bottom surface of the power supply storage recess 57. This gap functions as a storage space for the power supply device 62. In addition to the power supply device 62, the power supply housing recess 57 is adapted to accommodate various electric wires (power supply line 61, power supply cable 63).

[0079] The tabletop body 52 includes a core material and a decorative plate 56 that covers the core material. In other words, most of the surface of the tabletop body 52 is covered with the decorative plate 56, and the portion covered with the decorative plate 56 is the core material.

[0080] The decorative board 56 is a board in which a decorative sheet is attached to the surface of a base board made of MDF, similar to the decorative boards 26 and 36 of the side board 2 and the shelf board 3 described above, but is not limited thereto. The left-right dimension of such a decorative board 56 is set to be longer than the left-right dimension of the core material. The decorative board 56 having such dimensions is attached to the front end surface of the core material, and is attached to the upper and lower surfaces of the core material, and both left and right ends protrude laterally beyond the left and right ends of the core material. As a result, the fitting groove 53 is formed by the upper and lower parts of the decorative board 56 that protrude beyond the left and right end surfaces of the core material and the left and right end surfaces of the core material. The portion of the decorative plate 56 attached to the front end surface of the core material contacts the front end surface of the first receiving portion 51a. At the same time, the rear end of the decorative plate 56 abuts against the wall surface of the wall W. This allows the tabletop body 52 to be positioned in the front-rear direction.

[0081] Furthermore, the front-rear dimension of the portion of the decorative plate 56 attached to the upper and lower surfaces of the core material is set to be longer than the front-rear dimension of the core material. The decorative plate 56 with such dimensions is attached to the front end surface of the core material as described above, and the core material is arranged close to the front of the decorative plate 56, so that the rear ends of the portions attached to the upper and lower surfaces of the core material protrude rearward beyond the rear end surface of the core material. As a result, the power supply storage recess 57 is formed by the upper and lower portions of the decorative plate 56 that protrude beyond the rear end surface of the core material and the rear end surface of the core material.

[0082] The core material is made of a lightweight base material 54 . The lightweight base material 54 is made of a paper honeycomb, similar to the lightweight base materials 24, 34 of the side panel 2 and the shelf board 3 described above, but is not limited to this. Furthermore, the core material may include crosspiece materials that function as the core material (framework) of the tabletop 5 in addition to the lightweight base material 54. When the core material includes crosspiece materials, the crosspiece materials are preferably distributed and disposed at the front and rear parts of the core material.

[0083] In this embodiment, since the top plate body 52 may be removed during maintenance of the power supply device 62, the top plate body 52 is not adhered to the first receiving portion 51a and the second receiving portion 51b, but if the power supply storage recess 57 is not provided in the top plate 5, the top plate body 52 may be adhered to the first receiving portion 51a and the second receiving portion 51b. In other words, if the power supply storage recess 57 is provided in the base plate 4, the base plate body 42 is not adhered to the receiving portion 41.

[0084] <About the lighting equipment> Next, the lighting device 6 includes a power line 61 extending from a main power source (such as a distribution board or an outlet) not shown, a power supply unit 62 to which the power line 61 is connected, a power cable 63 extending from the power supply unit 62, a first lighting fixture 64 to which the power cable 63 is connected, an extension power cable 63 extending from the first lighting fixture 64, and a second lighting fixture 65 to which the extension power cable 63 is connected. In this embodiment, the first lighting fixture 64 is stored in the storage recess 37 of the upper shelf board 3 of the upper two shelves 3, and the second lighting fixture 65 is stored in the storage recess 57 of the lower shelf board 3. However, this is not limited to the above, and the lighting fixture 64 (65) may be stored in only one of the storage recesses of the upper and lower shelves 3. In other words, a pattern in which the lighting fixtures 64 (65) are provided on all of the multiple shelves 3 may be adopted, a pattern in which the lighting fixture 64 (65) is provided on only one shelf board 3 of the multiple shelves 3 may be adopted, or a pattern in which the lighting fixtures 64 (65) are provided on two shelves 3 of the three shelves 3 may be adopted.

[0085] The power line 61 is a linear member for transmitting electricity, and in this embodiment, is wired from the rear side of the ceiling C (above the ceiling) toward the power supply device 62. A through hole (not shown) through which the power line 61 passes is formed in the ceiling material constituting the ceiling C. The through hole is located above the wiring space 27 in one of the adjacent side plates 2 among the multiple side plates 2, so that the power line 61 can be drawn into the wiring space 27.

[0086] In addition, since the power supply unit 62 is stored in a power supply storage recess 57 formed in the rear end portion of the top plate 5, the power supply line 61 connected to the power supply unit 62 needs to be passed from the wiring space 27 to the power supply storage recess 57. Therefore, a first opening 26a is formed in a portion of the decorative plate 26 of the side plate 2 through which the power line 61 is passed through the wiring space 27, the portion facing the power supply storage recess 57. As a result, the power line 61 is wired from the wiring space 27 to the power supply storage recess 57 through the first opening 26a.

[0087] The power supply device 62 functions as a converter that converts AC current into DC current. Therefore, the power supply device 62 converts AC current sent from the main power source through the power line 61 into DC current, and can send the DC current to the first lighting device 64 and the second lighting device 65 through the power cable 63 and the extension power cable 63. In this embodiment, one end in the length direction is provided with an input terminal through which electricity is input, and the other end in the length direction is provided with an output terminal through which electricity is output. In addition, the power supply device 62 may have a function as a dimmer for adjusting the brightness of the lighting fixtures 64 and 65.

[0088] Such a power supply device 62 is stored in the power supply storage recess 57 in a state where it is fixed to a portion of the decorative board 56 that protrudes rearward from the rear end surface of the core material. In this embodiment, as shown in Fig. 2, the power supply device 62 is fixed to the underside of the portion of the decorative board 56 that protrudes rearward on the upper side. However, this is not limited to this, and the power supply device 62 may be fixed to the end surface of the second receiving portion 51b in the protruding direction.

[0089] The power cable 63 is a linear member for transmitting electricity, and in this embodiment, is wired from a power supply unit 62 stored in the power supply storage recess 57 of the tabletop 5 to a first lighting fixture 64 stored in the storage recess 37 of the shelf board 3 located directly below the tabletop 5. More specifically, the power cable 63 extends from the power supply unit 62 through the power supply housing recess 57 toward the other adjacent one of the multiple side panels 2. A second opening 26b is formed in a portion of the decorative plate 26 of the other side panel 2 that faces the power supply housing recess 57. The power cable 63 is routed through this second opening 26b to the wiring space 27 in the other side panel 2.

[0090] Additionally, a third opening 26c is formed in the decorative panel 26 of the other side panel 2 at a height position of the upper shelf board 3 arranged directly below the top panel 5 and in a portion facing the storage recess 37 of the shelf board 3. The power cable 63 wired in the wiring space 27 of the other side panel 2 is wired through this third opening 26c toward the storage recess 37 of the upper shelf board 3 and is connected to the first lighting fixture 64. This allows the first lighting fixture 64 to be energized and to be turned on.

[0091] In this embodiment, the lower shelf 3 is arranged below the upper shelf 3, and to transmit electricity to the second lighting fixture 65 stored in the storage recess 37 in the lower shelf 3, the first lighting fixture 64 and the second lighting fixture 65 are connected by an extension power cable 63. The extension power cable 63 is a linear member for transmitting electricity, similar to the power cable 63. The extension power cable 63 extends from the first lighting fixture 64 through the storage recess 37 in the upper shelf board 3 toward one of the adjacent side boards 2 of the multiple side boards 2. A fourth opening 26d is formed in a portion of the decorative board 26 in one of the side boards 2 that faces the storage recess 37. The extension power cable 63 is wired into the wiring space 27 in one of the side boards 2 through the fourth opening 26d.

[0092] A fifth opening 26e is formed in the decorative panel 26 of one side panel 2 at a height position of the lower shelf board 3 and in a portion facing the storage recess 37 of the shelf board 3. The extension power cable 63 wired in the wiring space 27 of one side panel 2 is wired toward the storage recess 37 of the lower shelf board 3 through this fifth opening 26e and is connected to the second lighting fixture 65. This allows the second lighting fixture 65 to be energized and to turn on the light. In other words, power can be supplied from the power supply device 62 to the second lighting fixture 65 via the first lighting fixture 64. Power is supplied to the first lighting fixture 64 and the second lighting fixture 65 at the same time.

[0093] 1 and other figures, the first lighting fixture 64 and the second lighting fixture 65 are lighting fixtures formed long along the width direction of the shelf board 3, and use LEDs (Light Emitting Diodes) as their light sources. In this embodiment, one end in the length direction is provided with an input terminal through which electricity is input, and the other end in the length direction is provided with an output terminal through which electricity is output.

[0094] The first lighting device 64 and the second lighting device 65 are provided at the bottom of the groove of the storage recess 37, as shown in FIG. More specifically, a thin steel plate SP is attached to the rear end surface of the core material (lightweight base material 34) that constitutes the groove bottom of the storage recess 37. In addition, a magnet MG is attached to the rear side surface of the first lighting fixture 64 and the second lighting fixture 65 opposite to the light-emitting part. That is, the first lighting fixture 64 and the second lighting fixture 65 are attached to the groove bottom of the storage recess 37 by the magnetic force of the magnet MG. Therefore, the first lighting fixture 64 and the second lighting fixture 65 are detachable from the groove bottom of the storage recess 37. When performing maintenance, the lighting fixtures 64, 65 can be easily removed by fingers from the gap between the shelf board 3 and the wall W. In other words, the lighting fixtures 64, 65 can be attached and detached without using special tools, etc., making maintenance work easier.

[0095] Moreover, each of the electric wires, the power line 61, the power cable 63, and the extension power cable 63, has one or more connector parts and is configured to be separable into one side and the other side at each position of the connector part. The connector part of each electric wire is preferably stored in the power supply storage recess 57 or the storage recess 57, but may be stored in a position in the wiring space 27 where it can be easily pulled out from each of the openings 26a to 26e. This makes it easy to perform replacement work when, for example, it becomes necessary to replace the power supply device 62 or each of the lighting fixtures 64, 65 or each of the electric wires. In this embodiment, the openings 26a to 26e are formed as holes penetrating the decorative plate 26 of the side plate 2, but this is not limited thereto, and may be formed as notches from the rear end of the decorative plate 26. As described above, the shelf board 3 can be provided at any height position, so when the shelf board 3 is installed on-site, the openings 26a to 26e may also be installed on-site. In that case, the holes and the notches may be appropriately selected depending on the situation at the site and the wiring situation. In other words, all of the openings 26a to 26e may be formed as holes, all of them may be formed as notches, or holes and notches may be used for each of the openings 26a to 26e.

[0096] As described above, in this embodiment, the electric wires 61, 63 required to supply power to the power supply device 62 and each of the lighting fixtures 64, 65, starting from the main power source, are arranged in a crank-like (zigzag) bend through both adjacent side panels 2, the power supply storage recess 57, and the storage recess 37. Such a wiring structure of the lighting device 6 is like the numbers "2" or "5" displayed on a seven-segment display.

[0097] Furthermore, when three or more side panels 2 are used, openings may be formed in the left and right portions of the decorative plate 26 of the side panel 2 (the middle side panel 2) with the shelf panels 3 provided on the left and right, and the electric wires may be wired to pass through. That is, for example, when three side panels 2 are used, the shelf panels 3 may be arranged adjacent to each other with the middle side panel 2 in between, and in such a case, the electric wires (extension power cable 63) need to be wired from one shelf panel 3 adjacent to the left and right to the other shelf panel 3, as shown in Fig. 6(a). In that case, the extension power cable 63 is arranged to pass through the decorative plate 26 of the middle side panel 2.

[0098] In addition, the lighting fixtures 64, 65 in this embodiment are provided with an input terminal at one end in the length direction and an output terminal at the other end in the length direction, but may be provided with both an input terminal and an output terminal at either one of the two ends in the length direction. If each lighting fixture 64, 65 is provided with an input terminal and an output terminal at one end in the length direction, it becomes possible to wire the power cable 63 together to one of the left and right side panels 2 as shown in Fig. 6(b). The wiring structure of such a lighting device 6 is like the number "3" displayed on a 7-segment display. When the lighting fixtures 64, 65 are used that have both an input terminal and an output terminal at either one of the longitudinal ends, the opening formed in the decorative panel 26 of one of the side panels 2 is set to a diameter sufficient to pass both the input side electric wires (power line 61, power cable 63) and the output side electric wires (power cable 63, extension power cable 63). However, this is not limited to this, and as described above, a cutout may be used depending on the situation.

[0099] In addition, the power supply device 62 in this embodiment has an input terminal at one end in the length direction and an output terminal at the other end in the length direction, but may have both an input terminal and an output terminal at either one of the two ends in the length direction. If the power supply device 62 and each of the lighting fixtures 64, 65 have an input terminal and an output terminal at one end in the length direction, the power line 61 and the power cable 63 can be wired together at one of the left and right side panels 2. That is, as shown in FIG. 6(c), it is possible to not wire the power line 61 and the power cable 63 in the wiring space 27 of the other of the left and right side panels 2. Such a wiring structure of the lighting device 6 is like the number "3" displayed on a 7-segment display. When such wiring becomes possible, the wall of the room can be used instead of the other side panel 2. That is, the wall of the room functions as a side portion across which the shelf board 3 is provided. Although not shown, for example, if a room has one wall and another wall that intersects with the first wall to form an inside corner, and one side panel 2 is provided perpendicular to the first wall and is arranged parallel to the other wall, the shelf board 3, the base board 4, and the top board 5 can be provided between the one side panel 2 and the other wall. If the wiring structure shown in FIG. 6(c) is applied here, it is possible to apply electricity to each of the lighting fixtures 64, 65 by wiring only on the one side panel 2 side without wiring the power line 61 and the power cable 63 on the other wall side.

[0100] 1 and 6, most of the lighting device 6, except for a part of the main power source and the power line 61, is arranged on the front surface side of the wall W. In other words, most of the lighting device 6 does not need to be arranged on the back side of the wall W. This has the advantage that not only is maintenance easy, but also that obstacles and restrictions on installation of the storage shelf 1 are unlikely to occur.

[0101] In this embodiment, the main power supply is located above the ceiling, but it may be located under the floor. In that case, a power supply storage recess is formed in the floor board 4, and the power supply device 62 is stored in the power supply storage recess. Accordingly, the power supply line 61 from the main power supply under the floor is passed through a through hole formed in the floor material and drawn into the wiring space 27 in one of the adjacent side boards 2 among the multiple side boards 2. Also, a main power source may be provided on the rear side of the wall W. In this case, a through hole is formed in the wall finishing material and a power line 61 is passed through it. The power supply device 62 may be stored in the power supply storage recess 57 formed in the top board 5, or in the power supply storage recess formed in the base board 4.

[0102] The first lighting fixture 64 and the second lighting fixture 65 receive power from the main power source via the power supply device 62, but the power supply device 62 may be equipped with a battery (dry battery, rechargeable battery) and may not receive power from the main power source. In other words, the power line 61 is not used either. In this case, the power supply device 62 does not function as a converter, but functions as a power supply source. This eliminates the need to form a through hole in the ceiling C through which the power line 61 can be passed, and all wiring for the lighting fixtures 6 can be performed on the front side of the wall W (the back side of the storage shelf 1), making maintenance easier. Furthermore, even when the first lighting fixture 64 and the second lighting fixture 65 are battery-powered, the first lighting fixture 64 and the second lighting fixture 65 are used solely as indirect lighting, and therefore the storage shelf 1 is arranged along the wall surface of the wall W.

[0103] <Advantageous Effects> According to this embodiment, the following excellent effects are obtained. That is, the wiring space 27 formed at the rear end of at least one of the side panels 2 is formed hollow along the vertical direction of the rear end of at least one of the side panels 2, so that the power cable 63 passed through this wiring space 27 can be wired along the vertical direction of at least one of the side surfaces. Also, since the lighting fixtures 64, 65 are stored in the storage recess 37 formed at the rear end of the shelf board 3, the power cable 63 for supplying power to the lighting fixtures 64, 65 can be easily routed from the wiring space 27 formed at the rear end of at least one of the side panels 2 to the lighting fixtures 64, 65. Therefore, the power cable 63 can be made difficult to see from the front side of the storage shelf 1, and the appearance of the storage shelf 1 can be improved. Furthermore, the lighting fixtures 64, 65 are disposed in a storage recess 37 formed in the rear end of the shelf board 3 disposed away from the surface of the wall W, and the power cable 63 is wired in a wiring space 27 formed in the rear end of at least one of the side boards 2 disposed perpendicular to the wall W, so that even if the main power source is hidden in a back part such as in the ceiling, under the floor, or behind the wall, most of the lighting device 6 is disposed on the front side of the surface of the wall W. Therefore, when performing maintenance on the lighting device 6, most of the work can be performed on the front side of the wall W, making it easy to perform maintenance on the lighting device 6.

[0104] Furthermore, opening 26c (26d, 26e) formed on the surface of the rear end portion of at least one of side panels 2 facing the shelf board 3 is disposed facing the storage recess 37 of the shelf board 3 and connects the wiring space 27 to the storage recess 37, so that power cable 63 can be wired directly from the wiring space 27 to the storage recess 37 through opening 26c (26d, 26e). This allows power cable 63 to be wired so as not to be seen from the front side of storage shelf 1, improving the appearance of storage shelf 1.

[0105] Furthermore, the receiving portions 31 of the shelf board 3 are fixed to the respective surfaces of the side boards 2 facing the shelf board 3, and the storage recesses 37 are formed in the rear end portion of the shelf board main body 32 received by and fixed to the receiving portions 31, so that the lighting fixtures 64, 65 can be stored and the power cable 63 can be wired in positions different from the fixed positions of the shelf board main body 32 to the side boards 2. This makes it easier to perform maintenance work on the lighting device 6.

[0106] Furthermore, the shelf board main body 32 has fitting grooves 33 at both widthwise ends, which are formed in a substantially U-shape in a cross-sectional view from the front and into which the receiving portions 31 are fitted, so that the shelf board main body 32 can be provided to span multiple side panels 2 with the receiving portions 31 fitted into the fitting grooves 33. This makes it possible to hide the receiving portions 31, unlike when the shelf board main body 32 is provided by placing it on the upper surface of the receiving portions 31, for example, and therefore makes the storage shelf 1 look better.

[0107] In addition, since the receiving portion 21 of the side panel 2 is fixed to the surface of the wall W and the side panel body 22 is fixed to the receiving portion 21, the entire storage shelf 1 can be fixed to the surface of the wall W and mounted on the wall.

[0108] Moreover, the side panel body 22 has a fitting groove 23 formed in a substantially U-shape in a plan cross section at its rear end located on the wall W side, into which the receiving portion 21 of the side panel 2 is fitted, so that the side panel body 22 can be provided on the surface of the wall W with the receiving portion 21 fitted into the fitting groove 23. This makes it possible to hide the receiving portion 21, thereby improving the appearance of the storage shelf 1.

[0109] Furthermore, a gap 27 is formed between the receiving portion 21 of the side panel 2 and the bottom of the mating groove 23 of the side panel main body 22, and this gap 27 is used as the wiring space 27. Therefore, when the receiving portion 21 is fitted into the mating groove 23 and the side panel main body 22 is fixed to the receiving portion 21, the wiring space 27 can be easily formed between the receiving portion 21 and the bottom of the mating groove 23 without any hassle.

[0110] Furthermore, opening 26b formed on the surface of the rear end portion of at least one of side panels 2 facing top panel 5 is disposed facing power supply storage recess 57 and communicates with wiring space 27 and power supply storage recess 57, so that power cable 63 can be wired directly from power supply storage recess 57 to wiring space 27 through opening 26b. This allows power cable 63 to be wired so as not to be seen from the front side of storage shelf 1, improving the appearance of storage shelf 1. When the power supply storage recess is formed in the base plate 4, the opening 26b formed in the surface of the rear end of at least one of the side plates 2 facing the base plate 4 is disposed facing the power supply storage recess and communicates between the wiring space 27 and the power supply storage recess. Thus, the same effect as when the power supply storage recess 57 is formed in the top plate 5 can be obtained.

[0111] Furthermore, magnets MG are provided on the ends of the lighting fixtures 64, 65 on the shelf 3 side, and a metal plate SP to which the magnets MG are attracted is provided in the storage recess 37, so that the lighting fixtures 64, 65 can be attached to the groove bottom of the storage recess 37 by the magnetic force of the magnets MG. That is, the lighting fixtures 64, 65 are in a state in which they can be freely attached and detached from the groove bottom of the storage recess 37. As a result, when performing maintenance on the lighting fixtures 64, 65, the lighting fixtures 64, 65 can be easily attached and detached through the gap between the shelf 3 and the wall W without using special tools, etc., so that maintenance work on the lighting fixtures 64, 65 can be easily performed.

[0112] Furthermore, one opening 26c (26d, 26e) of the multiple openings 26b-26e formed on the surface of the rear end of at least one of the side panels 2 facing the shelf board 3 is disposed facing the storage recess 37 of the shelf board 3 and communicates between the wiring space 27 and the storage recess 37, and the power cable 63 is wired from the one opening 26c (26d, 26e) to the storage recess 37 and connected to the lighting fixtures 64, 65, so that the power cable 63 wired from the wiring space 27 to the storage recess 37 through the one opening 26c (26d, 26e) can be connected to the lighting fixtures 64, 65 at a position that is difficult to see from the front side of the storage shelf 1. This can improve the appearance of the storage shelf 1.

[0113] Further, the multiple openings 26b to 26e include another opening 26b formed at a different height position from the first opening 26c, and the power cable 63 extending from the power supply device 62 is wired into the wiring space 27 through the other opening 26b, and is further wired to the storage recess 37 through the first opening 26c and connected to the lighting fixtures 64 and 65. Therefore, the power cable 63 extending from the power supply device 62 can be directly wired from the power supply storage recess 57 toward the wiring space 27 through the other opening 26b. Furthermore, the power cable 63 wired from the power supply storage recess 57 toward the wiring space 27 can be directly wired from the wiring space 27 to the storage recess 37 through the first opening 26c. That is, the power supply device 62 and the lighting fixtures 64 and 65 can be reliably connected by the power cable 63 wired from the power supply storage recess 57 to the storage recess 37 through the wiring space 27. This allows the power cable 63 connecting the power supply device 62 and the lighting fixtures 64, 65 to be wired so as not to be seen from the front side of the storage shelf 1, thereby improving the appearance of the storage shelf 1.

[0114] Among the multiple openings 26a to 26e, opening 26a through which power line 61 passes connects wiring space 27 and power supply storage recess 57. Therefore, power line 61 connecting the main power supply and power supply device 62 can be wired so as not to be seen from the front side of storage shelf 1, thereby improving the appearance of storage shelf 1.

[0115] In recent years, there has been a demand for the realization of a decarbonized society through the promotion of carbon neutrality, which reduces carbon dioxide emissions to virtually zero, and for the achievement of the SDGs (Sustainable Development Goals), and the construction industry is also working to build buildings using wood that emits less carbon dioxide. The storage shelf 1 of this embodiment has core materials for the side panels 2, shelf panels 3, base panel 4, and top panel 5 made of paper honeycomb, so it can contribute to the realization of a decarbonized society through the promotion of carbon neutrality and the achievement of the SDGs. Furthermore, most of the lighting device 6 in this embodiment is disposed on the front side of the wall surface of the wall W, making maintenance easy. Therefore, partial replacement of parts of the lighting device 6 can be easily performed, preventing excessive maintenance such as complete replacement of the lighting device 6. This contributes to realizing a decarbonized society and achieving the sustainable development goals.

[0116] [Modifications] The embodiments to which the present invention can be applied are not limited to the above-described embodiments, and can be modified as appropriate without departing from the spirit of the present invention. Modifications are described below. The following modifications may be combined as far as possible. In each of the following modifications, elements common to the above-described embodiments are denoted by the same reference numerals, and descriptions thereof are omitted or simplified.

[0117] [Variation 1] In the above embodiment, the storage shelf 1 does not have a back panel, and the back of the storage space formed above each shelf board 3 and the base board 4 is in a state where the wall surface W is visible, but the storage shelf 1A of this modification has a back panel 7 as shown in Fig. 7. That is, the storage shelf 1A of this modification is formed in a substantially U-shape in a plan view, and therefore can be placed on the floor F in a self-supporting state as a piece of furniture. In addition, the shelf board 3 is omitted in FIG.

[0118] The back panel 7 is provided with receiving portions 71 at both ends in the width direction (left and right direction). Similar to the receiving portions 21 of the side panel 2 in the above embodiment, the receiving portions 71 are portions that are fitted into the fitting grooves 23 of the side panel 2. Therefore, the rear end portions of the side panel main bodies 22 of the side panel 2 are fixed to the receiving portions 71 with an adhesive, with the receiving portions 71 fixed to the back panel 7 fitted into the fitting grooves 23.

[0119] Similarly to the receiving portion 21 of the side plate 2 in the above embodiment, the receiving portion 71 has a protruding dimension from the wall surface of the wall W that is set shorter than the groove depth dimension (depth dimension: dimension in the front-rear direction) of the fitting groove 23. Therefore, the end face of the receiving portion 71 in the protruding direction does not reach the groove bottom (rear end face of the third fixing base material 25c) of the fitting groove 23. As a result, a gap 27 (wiring space 27) is formed between the end face of the receiving portion 71 in the protruding direction and the groove bottom surface of the fitting groove 23.

[0120] Although the storage shelf 1A can be self-supporting as described above, the back panel 7 may be fixed to the surface of the wall W. When fixing the back panel 7 to the surface of the wall W, a fastener such as a screw is driven toward the wall W from the end face of the receiving portion 71 on the protruding side. This allows the fastener to be hidden within the wiring space 27, improving the appearance.

[0121] [Modification 2] As shown in Fig. 8, storage shelf 1B of this modified example has a back panel 8. That is, storage shelf 1B of this modified example is also formed in a substantially U-shape in a plan view, and can be placed on floor F in a self-supporting state as a piece of furniture. In addition, the shelf board 3 is omitted in FIG.

[0122] The back panel 8 has, at both ends in the width direction (left and right direction), a receiving portion 81 that is fitted into the fitting groove 23 of the side panel 2 formed integrally therewith. Therefore, the rear end of the side panel main body 22 of the side panel 2 is fixed to the receiving portion 81 by adhesive with the receiving portion 81 formed integrally with the back panel 8 fitted into the fitting groove 23. The back panel 8 of this modified example is a solid board material with a certain degree of thickness, and is made of, for example, solid wood (board material: lumber), laminated lumber, plywood, etc. At both ends in the width direction of such a board material, a groove into which one of the left and right rear ends of the decorative panel 26 of the side panel 2 is inserted, and a notch into which the other rear end is fitted is formed. In other words, the space between these grooves and notches forms the receiving portion 81 of this modified example.

[0123] Furthermore, the receiving portion 81 has a protruding dimension from the wall surface of the wall W that is longer than that of the receiving portion 21 of the side plate 2 in the above embodiment, and is set to be approximately equal to the groove depth dimension (depth dimension: dimension in the front-rear direction) of the fitting groove 23. Therefore, when the receiving portion 81 is fitted into the fitting groove 23, the groove bottom of the fitting groove 23 and the protruding direction side end face of the receiving portion 81 are close enough to each other that there is a very small gap between them, or are in contact with each other. In other words, the receiving portion 81 is fitted deep into the fitting groove 23. When the receiving portion 81 is fitted deep into the fitting groove 23 in this manner, the wiring space 27 cannot be secured. Therefore, in the side panel 2 of this modified example, the third fixed base material 25c is disposed forward of the position of the third fixed base material 25c of the side panel 2 in the above embodiment, and the vertical bar material 28 is disposed at a distance rearward from the third fixed base material 25c. The gap 27 between the third fixed base material 25c and the vertical bar material 28 is used as the wiring space 27. This allows the electric wires 61, 63 to be hidden inside the side panel 2, improving the appearance. Furthermore, when the wiring space 27 is secured in this manner, the bottom of the fitting groove 23 is formed by the rear end face of the vertical crosspiece 28 .

[0124] Although the storage shelf 1B of this modified example can also stand on its own, the back panel 8 may be fixed to the surface of the wall W. When fixing the back panel 8 to the surface of the wall W, a fastener is driven into the wall W from the end face of the receiving portion 81 on the protruding direction side, and the position of the receiving portion 81 where the fastener is provided is countersunk so that the head of the fastener does not protrude.

[0125] [Modification 3] As shown in Fig. 9, storage shelf 1C of this modified example has a back panel 9. That is, storage shelf 1C of this modified example is also formed in a substantially U-shape in a plan view, and can be placed on floor F in a self-supporting state as a piece of furniture. In addition, in FIG. 9, the shelf board 3 is omitted.

[0126] The back panel 9 has a flush structure with a lightweight base material as part of the core material, and is lighter than a wooden shelf board of the same size. Such a back panel 9 has a basic structure consisting of multiple receiving parts 91 attached to the left and right side panels 2 and a back panel main body 92 of a flush structure fixed to these receiving parts 91. In other words, unlike the storage shelves 1A and 1B in the above-mentioned modified examples, the storage shelf 1C of this modified example is in a state in which the side panels win (the back panel loses).

[0127] The receiving portions 91 are disposed in a direction perpendicular (vertical) to the floor F, and are fixed with an adhesive to the side surface (decorative board 26) at the rear end of the side panel 2. More specifically, of the multiple receiving portions 91, the left receiving portion 91 is fixed to the right side surface at the rear end of the left side panel 2. The right receiving portion 91 is fixed to the left side surface at the rear end of the right side panel 2.

[0128] At the left and right side ends of the back panel main body 92, fitting grooves 93 into which receiving parts 91 attached to the left and right side panels 2 are fitted are formed. The fitting grooves 93 are formed in a concave (U-shaped) shape in a plan view and open toward the sides. In the present embodiment, the fitting grooves 93 are also open upward and downward, but this is not limited thereto, and the upper and lower sides may be closed. When the receiving portion 91 is fitted into the fitting groove 93 of the back panel main body 92, the rear end surface of the back panel main body 92 and the rear end surface of the side panel 2 become flush with each other.

[0129] The back panel body 92 includes a core material and a decorative plate 96 that covers the core material. The decorative panels 96 are attached to the front and rear side surfaces of the core material, and are attached so as to protrude laterally to the left and right (towards the side panels 2) beyond the core material. Fitting grooves 93 are formed by the laterally protruding ends of the front and rear decorative panels 26 and the side end faces of the core material.

[0130] The core material includes a lightweight base material 94 and crosspiece materials 95. The lightweight substrate 94 is made of a paper honeycomb, but is not limited to this. The crosspieces 95 are provided on both side ends of the core material and further towards the center than the crosspieces 95 on both side ends, and function as a core material (framework) of the back panel 9. The crosspieces 95 on both side ends of the core material form the groove bottom of the fitting groove 93. In other words, the fitting groove 93 is formed by the side end faces of the crosspieces 95 and the inner surface of a portion of the decorative panel 96 that protrudes towards the side panel 2 side further than the core material. The lightweight base material 94 is disposed between the crosspieces 95 disposed in the four locations described above. The lightweight base material 94 and each crosspiece 95 are bonded with an adhesive to form a core material.

[0131] In this modified example, the protruding dimension of the receiving portion 91 is set to be approximately equal to the groove depth dimension (depth dimension: dimension in the left-right direction) of the fitting groove 93. Therefore, when the receiving portion 91 is fitted into the fitting groove 93, the groove bottom of the fitting groove 93 and the protruding direction side end face of the receiving portion 91 are close enough to each other to leave a very small gap, or are in contact with each other. In other words, the receiving portion 91 is fitted deep into the fitting groove 93. In addition, the joining between the receiving portion 91 and the back panel main body 92 is performed by fixing the receiving portion 91 attached to the side panel 2 from the front side with a fastener such as a screw while the receiving portion 91 is fitted into the fitting groove 93, but this is not limited to this and the receiving portion 91 may be fixed with an adhesive.

[0132] In addition, because the back panel 9 has a certain degree of thickness, the front surface of the back panel 9 protrudes largely from the surface of the wall W. Therefore, in order to arrange the lighting fixtures 64, 65 with a gap between them and the front surface of the back panel 9, the wiring space 27 of the side panel 2 in this modified example must be arranged at a position spaced forward from the front surface of the back panel 9. Therefore, in the side panel 2 of this modified example, the third fixed base material 25c is positioned further forward than the position of the third fixed base material 25c of the side panel 2 in the above embodiment, and a vertical bar material 28 is further positioned with a gap behind the third fixed base material 25c, thereby forming a wiring space 27 slightly closer to the front. Furthermore, when the wiring space 27 is secured in this manner, the bottom of the fitting groove 23 is formed by the rear end face of the vertical crosspiece 28 .

[0133] In addition, the receiving portion 21 in the side plate 2 of this modified example is set so that the protruding dimension from the wall surface of the wall W is approximately equal to the groove depth dimension (depth dimension: dimension in the front-rear direction) of the fitting groove 23. Therefore, when the receiving portion 21 is fitted into the fitting groove 23, the groove bottom of the fitting groove 23 and the protruding direction side end face of the receiving portion 21 are close enough to each other to leave a very small gap, or are in contact with each other. In other words, the receiving portion 21 is fitted deep into the fitting groove 23.

[0134] The storage shelf 1C of this modified example is also capable of standing on its own, but may also be fixed to the surface of a wall W. When fixing the storage shelf 1C to the surface of a wall W, a fastener is hammered into the wall W from the end face of the side panel 2 on the protruding side of the receiving portion 21, and the position of the receiving portion 21 where the fastener is provided is countersunk so that the head of the fastener does not protrude.

[0135] [Modification 4] In the above embodiment, the shelf board 3 is arranged so that the receiving portion 31 fixed to the side of the side panel 2 is fitted into the mating groove 33 formed in the side end of the shelf board main body 32. However, in this modified example, although not shown in the figure, the shelf board main body is placed on top of the receiving portion fixed to the side of the side panel 2.

[0136] The shelf board body, like the shelf board body 32 in the above embodiment, has a width set to be substantially equal to the distance between the left and right side panels 2, and is disposed between the left and right side panels 2. The receiving portions are fixed to the surfaces of the left and right side panels 2 facing the shelf board, and the shelf board main body is placed and fixed on the upper surfaces of the left and right receiving portions. Therefore, the left and right side ends of the shelf board body do not need to have fitting grooves formed therein. In addition, since the receiving portion will be exposed, it is preferable that the surface be a decorative surface rather than simply being made of a square timber or the like. In addition, the shelf board body in this modified example is fixed to the upper surface of the receiving portion fixed to the side surface of the side plate 2 by adhesive or fasteners such as screws.

[0137] A storage recess 37 is formed at the rear end of the shelf body, and lighting fixtures 64, 65 are stored therein. Similarly to the above embodiment, the decorative board 26 constituting the side surface of the side panel 2 facing the shelf is formed with openings 26b-26e through which the power cable 63 passes, but these openings 26b-26e are formed in the decorative board 26 at the rear end of the shelf placed on the upper surface of the receiving part, facing the storage recess 37.

[0138] [Modification 5] In the above embodiment, the power supply device 62 is provided in the power supply storage recess 57 of the top plate 5, and the bottom plate 4 may also be provided with a power supply storage recess, but in this modified example, although not shown, the storage shelf 1 does not have a top plate 5 or a bottom plate 4. Therefore, the storage shelf 1 of this modified example has a power supply storage recess in one of the multiple side plates 2.

[0139] To explain in more detail, one of the multiple side panels 2 in this modified example has a receiving portion 21 fixed to the surface of the wall W, and a side panel main body 22 fixed to the receiving portion 21. The receiving portion 21 of this modified example is not a single long piece of crosspiece material, but is composed of multiple crosspiece materials, which are arranged at intervals in the vertical direction. The power supply unit 62 is arranged in the space formed between the crosspiece material arranged above and the crosspiece material arranged below. Therefore, the power supply unit 62 of this modified example is arranged, together with the receiving portion 21, inside the fitting groove 23 formed in the rear end portion of the side plate main body 22. In other words, the fitting groove 23 of the side plate 2 of this modified example functions as a power supply storage recess in which the power supply unit 62 is stored.

[0140] It is assumed that the power supply device 62 of this modified example is set to a size that fits within the fitting groove 23. In addition, the power supply unit 62 may be fixed to the wall W together with the receiving portion 21, or may be fixed to the receiving portion 21, or may be fixed to the bottom of the mating groove 23, or may be simply stored within the mating groove 23 without being fixed to any of these.

[0141] A power line 61 from the main power supply is led directly into the wiring space 27 in the side panel 2 in which the power supply device 62 is arranged, and connected to the power supply device 62 . In addition, a power cable 63 extending from the power supply unit 62 is passed through the wiring space 27 and through an opening 26c formed facing the storage recess 37 of the shelf board 3 to be wired to the storage recess 37. The power cable 63 is connected to lighting fixtures 64, 65 stored in the storage recess 37.

[0142] According to this modification, the power supply device 62 is disposed inside the fitting groove 23 together with the receiving portion 21, an opening 26c through which the power cable 63 passes is formed in the surface of the rear end portion of one of the side panels 2 facing the shelf board 3, and the opening 26c is disposed facing the storage recess 37 of the shelf board 3 and communicates with the wiring space 27 and the storage recess 37, so that the power cable 63 connecting the power supply device 62 disposed inside the fitting groove 23 to the lighting fixtures 64, 65 stored in the storage recess 37 of the shelf board 3 can be wired directly from the wiring space 27 to the storage recess 37 through the opening 26c. This allows the power cable 63 to be wired so as not to be seen from the front side of the storage shelf 1, improving the appearance of the storage shelf 1.

[0143] [Modification 6] Although not shown in the drawings, in the modified example, the storage shelf 1 does not include the top plate 5 and the bottom plate 4. Therefore, the storage shelf 1 of this modified example has a power supply storage recess in one of the multiple shelf plates 3.

[0144] More specifically, each of the multiple shelf boards 3 has a storage recess 37 formed at the rear end. In this modification, the storage recess 37 of any one of the multiple shelf boards 3 is used as a power supply storage recess in which a power supply device 62 is stored. The power supply device 62 is stored in the storage recess 37 that functions as such a power supply storage recess.

[0145] The power supply device 62 is attached to the groove bottom of the storage recess 37. In this case, it is preferable that the power supply device 62 is attached to the groove bottom of the storage recess 37 by the magnetic force of a magnet MG, similar to the lighting fixtures 64, 65. This allows the power supply device 62 to be freely attached and detached to the groove bottom of the storage recess 37, so that when performing maintenance, the power supply device 62 can be easily removed by hand through the gap between the shelf board 3 and the wall W. In other words, the power supply device 62 can be attached and detached without using special tools, making maintenance work easier.

[0146] The power line from the main power supply is passed through the wiring space 27 in one of the multiple side panels 2, and is also passed through an opening 26c formed facing the storage recess 37 of the shelf board 3 in which the power supply unit 62 is stored, and wired to the storage recess 37. Furthermore, the power cable 63 extending from the power supply device 62 is passed through the opening 26d in the other of the multiple side panels 2, or, depending on the wiring situation, through the opening 26c in one of the side panels 2. The power cable 63 is then wired to lighting fixtures 64, 65 stored in the storage recess 37 of a shelf board 3 different from the shelf board 3 in which the power supply device 62 is stored.

[0147] According to this modification, the power supply device 62 is stored in the storage recess 37 of any one of the shelves 3, and an opening 26c through which the power cable 63 passes is formed in the surface of the rear end of one of the side panels 2 facing any one of the shelves 3, and the opening 26c is disposed facing the storage recess 37 of any one of the shelves 3 and communicates with the wiring space 27 and the storage recess 37, so that the power cable 63 extending from the power supply device 62 stored in the storage recess 37 of any one of the shelves 3 can be wired directly from the storage recess 37 to the wiring space 27 through the openings 26c and 26d. This allows the power cable 63 to be wired so as not to be seen from the front side of the storage shelf 1, improving the appearance of the storage shelf 1.

[0148] In this modification, as described above, the power cable 63 is wired from the shelf board 3 in which the power supply device 62 is stored in the storage recess 37 to the lighting fixtures 64, 65 stored in the storage recess 37 of the other shelf board 3. However, the power supply device 62 and the first lighting fixture 64 may be stored in the same storage recess 37. In other words, the power supply device 62 and the first lighting fixture 64 may be stored side by side in the storage recess 37 of the same shelf board 3. Then, the power cable 63 extending from the first lighting fixture 64 may be connected to the second lighting fixture 65 through the wiring space 27. [Explanation of symbols]

[0149] W Wall F floor C Ceiling SP steel plate MG Magnet 1 Storage shelf 2 Side Panel 21 Receiving department 22 Side panel body 23 Fitting groove 24 Lightweight Base Material 25a First fixed base material 25b Second fixed base material 25c Third fixed base material 26 Decorative Panel 27 Gap (wiring space) 3 Shelves 31 Receiving Department 32 Shelf body 33 Fitting groove 34 Lightweight Base Material 36 Decorative Panel 37 Storage recess 5. Tabletop 51a First receiving part 51b Second receiving part 52 Top plate body 53 Fitting groove 54 Lightweight Base Material 56 Decorative Panel 57 Power supply storage recess 6. Lighting Equipment 61 Power line 62 Power supply 63 Power Cable 64 First lighting fixture 65 Second lighting fixture

Claims

1. A storage shelf arranged along a surface of a wall, A plurality of side portions arranged perpendicular to the wall in a plan view; A shelf board disposed apart from the surface of the wall and spanning between the plurality of side portions; and a lighting device that emits light backward and is used as indirect lighting, The lighting device includes: A lighting fixture provided at a rear end portion of the shelf board that is located on the wall side; a power cable for supplying power to the lighting fixture, The shelf board has a storage recess formed at a rear end portion of the shelf board in which the lighting fixture is stored, and the storage recess is substantially U-shaped in a cross-sectional view from a side and is open to the rear, A storage shelf characterized in that at least one of the multiple side portions has a space formed at a rear end of the at least one side portion in which the power cable is wired, and the space is formed hollow along the vertical direction of the rear end of the at least one side portion.

2. The storage shelf according to claim 1, an opening through which the power cable is passed is formed in a surface of the shelf board side at a rear end portion of the at least one side surface portion; The opening is disposed facing the storage recess of the shelf board, and connects the space to the storage recess.

3. The storage shelf according to claim 1, The shelf board is A receiving portion fixed to each of the shelf board side surfaces of the side surface portions; A shelf body received by the receiving portion and fixed to the receiving portion, The storage shelf is characterized in that the storage recess is formed at a rear end of the shelf body.

4. The storage shelf according to claim 3, The storage shelf is characterized in that the shelf body has fitting grooves on both widthwise ends that are formed in a substantially U-shape when viewed in cross section from the front, and into which the receiving portions are fitted.

5. The storage shelf according to claim 1, The at least one side surface portion is A receiving portion fixed to a surface of the wall; A storage shelf comprising: a side portion main body fixed to the receiving portion.

6. The storage shelf according to claim 5, The storage shelf is characterized in that the side body has a mating groove at its rear end located on the wall side, the mating groove being formed into an approximately U-shape in a plan cross-sectional view and into which the receiving portion is fitted.

7. The storage shelf according to claim 6, A storage shelf characterized in that a gap is formed between the receiving portion and a groove bottom of the fitting groove of the side portion main body, and the gap serves as the space.

8. The storage shelf according to claim 7, the lighting device includes a power supply device for supplying power to the lighting fixture, and the power cable connects the power supply device and the lighting fixture; The power supply device is disposed inside the fitting groove together with the receiving portion, an opening through which the power cable is passed is formed in a surface of the shelf board side at a rear end portion of the at least one side surface portion; The opening is disposed facing the storage recess of the shelf board, and connects the space to the storage recess.

9. The storage shelf according to claim 1, The device further includes a top plate or a bottom plate extending between the plurality of side portions, the lighting device includes a power supply device for supplying power to the lighting fixture, and the power cable connects the power supply device and the lighting fixture; The top plate or the bottom plate is A receiving portion fixed to a surface of the wall; A top plate body or a bottom plate body fixed to the receiving portion, The top plate body or the bottom plate body has a power supply storage recess at a rear end of the top plate body or the bottom plate body, the power supply storage recess being formed in a substantially U-shape in a cross-sectional view from a side and storing the power supply device, an opening through which the power cable is passed is formed on a surface of the top plate side or the bottom plate side at a rear end of the at least one side surface portion; The opening is disposed facing the power source storage recess and connects the space to the power source storage recess.

10. The storage shelf according to claim 1, The device further includes a back plate extending between the side portions, The side surfaces are arranged perpendicular to the back plate in a plan view and are fixed to the back plate. The storage shelf is characterized in that the shelf board is arranged at a distance from the surface of the back board.

11. The storage shelf according to claim 1, A magnet is provided at an end of the lighting fixture on the shelf side, A storage shelf characterized in that a metal plate to which the magnet is attracted is provided in the storage recess.

12. The storage shelf according to any one of claims 1 to 11, A plurality of the shelf boards are provided across the plurality of side surface portions, The storage shelf is characterized in that the lighting fixture is stored in the storage recess of at least one of the plurality of shelves.

13. The storage shelf according to claim 12, the lighting device includes a power supply device for supplying power to the lighting fixture, and the power cable connects the power supply device and the lighting fixture; The power supply device is stored in the storage recess in any one of the plurality of shelves, An opening through which the power cable is passed is formed on a surface of the rear end portion of the at least one side surface portion on the side of the shelf board, A storage shelf characterized in that the opening is arranged facing the storage recess in any one of the shelves and connects the space to the storage recess.

14. A wiring structure of a power cable for supplying power to a lighting device that is provided in a storage shelf arranged along a surface of a wall and is used as indirect lighting by emitting light backward, comprising: The storage shelf includes: A plurality of side portions arranged perpendicular to the wall in a plan view; A shelf board is disposed apart from the surface of the wall and is provided between the plurality of side portions, The lighting device includes: A lighting fixture provided at a rear end portion of the shelf board that is located on the wall side; The power cable, The shelf board has a storage recess formed at a rear end portion of the shelf board in which the lighting fixture is stored, and the storage recess is substantially U-shaped in a cross-sectional view from a side and is open to the rear, At least one of the side surfaces has a space formed at a rear end portion of the at least one side surface portion and in which the power cable is wired, the space being hollow and extending along a vertical direction of the rear end portion of the at least one side surface portion; a plurality of openings through which the power cable is passed are formed in a surface of the shelf board side at a rear end portion of the at least one side surface portion; One of the plurality of openings is disposed facing the storage recess of the shelf board and communicates the space with the storage recess; The wiring structure, characterized in that the power cable is routed from the first opening to the storage recess and connected to the lighting fixture.

15. 15. The wiring structure according to claim 14, The lighting device further includes a power supply device for supplying power to the lighting fixture, the power cable connects the power supply device and the lighting fixture; The plurality of openings includes another opening formed at a different height position from the one opening, A wiring structure characterized in that the power cable extending from the power supply unit is wired into the space through the other opening, and further wired into the storage recess through the one opening and connected to the lighting fixture.

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