Panel

Abstract

To provide a various posture panel since being wholly deformable, without providing a special hinge element or the like, in other words, without complicating a structure or increasing the number of components, concerning a panel used on a top board of a furniture.SOLUTION: A felt panel 4 which is a panel used on a top board 1 of a table S2T is made of a single raw material (felt raw material), and has a constitution including partially an easily deformable area 41 which is deformable more easily than other areas.SELECTED DRAWING: Figure 36

Description

[Technical field]

[0001] The present invention relates to panels for use on furniture tops. [Background technology]

[0002] 2. Description of the Related Art Conventionally, desktop panels and side panels have often been arranged on the top board of a desk, a table, and the like (see, for example, Patent Document 1).

[0003] However, conventional panels are predominantly of a fixed shape and cannot be used in a variety of ways.

[0004] Additionally, panels have been developed that have hinge elements such as hinges or bellows in the middle section to enable the entire panel to be deformed, but conventional panels have had the problem that the panel body and the hinge elements are constructed as separate parts, making the structure complicated. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2018-186861 A Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention aims to solve the above-mentioned problems reasonably. [Means for solving the problem]

[0007] The panel according to the invention of claim 1 is a panel used on a tabletop, made of a single material, partially provided with an easily deformable region that is more easily deformed than other regions, and the entire panel including the easily deformable region has a constant thickness dimension, and the easily deformable region has a plurality of cut lines. column are arranged so that they face the same direction and do not interfere with each other. Each of the cut line rows is composed of a plurality of cut lines intermittently provided in the longitudinal direction in which the cut line row extends, and the positions of the cut lines of adjacent cut line rows are different in the longitudinal direction so that they are not aligned with each other. .

[0009] The panel according to the invention described in claim 2 is A panel used on a tabletop, made of a single material, partially equipped with an easily deformable region that is more easily deformed than other regions, the entire panel including the easily deformable region having a constant thickness dimension, the easily deformable region having a plurality of cut lines that are oriented in the same direction and do not interfere with each other, The cut line is formed so as to penetrate from one panel surface to the other panel surface.

[0010] Claim 3 The panel according to the invention described in claim 1 or 2 The one described is made of a felt material having a constant thickness.

[0011] Claim 4 The panel according to the invention described in claim 1, 2 or 3 The invention relates to a method for manufacturing a flexible substrate, comprising: a) providing a flexible substrate having a plurality of adjacent regions in the left-right direction; b) providing a flexible substrate having a plurality of adjacent regions in the left-right direction; c) providing a flexible substrate having a plurality of adjacent regions in the left-right direction;

[0012] The panel according to the invention described in claim 5 comprises: A panel used on a tabletop, made of a single material, partially equipped with an easily deformable region that is more easily deformed than other regions, the entire panel including the easily deformable region having a constant thickness dimension, the easily deformable region having a plurality of cut lines that are oriented in the same direction and do not interfere with each other, A plurality of dividing lines that divide the material are provided at intervals in the left-right direction at the lower edge, forming a curtain portion with an open lower edge between these dividing lines, and the easily deformable region is arranged in the entire or upper part of the curtain portion, with an approximately horizontal cut line.

[0013] Claim 6 The panel according to the invention described in claim 1, 2, 3, 4 or 5 The device is configured to be used on a top surface having a groove and to stand on the top surface by engaging a portion of the device with the groove.

[0014] In this specification, the term "groove" is not limited to a groove having a bottom in the narrow sense, but also includes a through hole that extends continuously in one direction. Thus, a "groove with a bottom" literally means a groove having a bottom in the narrow sense, and a "through groove" means a hole that does not have a bottom and extends in one direction, penetrating vertically. Effect of the Invention

[0015] According to the present invention, a panel can be provided that, although being made of a single material, can change its overall shape by deforming an easily deformable area, thereby easily solving the problems mentioned above. [Brief description of the drawings]

[0016] [Figure 1] FIG. 2 is an overall perspective view showing one of the tables according to the embodiment of the present invention. [Diagram 2] FIG. [Diagram 3] FIG. [Figure 4] FIG. [Diagram 5] FIG. 3 is an enlarged view of a main part in FIG. 2. [Figure 6] Cross-sectional views of the tabletop taken along lines AA, BB, and CC in Figure 2. [Figure 7] FIG. 4 is a perspective view showing a state in which the lid is attached to the opening of the table. [Figure 8] FIG. 4 is an enlarged perspective view of a main portion showing the table top with the lid of the table in an open position. [Figure 9] FIG. 3 is an enlarged cross-sectional view taken along line DD in FIG. 2. [Figure 10] FIG. 4 is an enlarged cross-sectional view of a main portion of the table, showing a state in which the lid body of the table is in an open position. [Figure 11] 4 is an explanatory diagram showing how the lid of the table is opened and closed; FIG. [Figure 12] FIG. 4 is an enlarged cross-sectional view of a main portion of the table with the lid in a closed position. [Figure 13] FIG. 4 is an explanatory diagram showing a manner in which a clamp is attached to the table. [Figure 14] FIG. 4 is an explanatory diagram showing a manner in which a clamp is attached to the table. [Figure 15] FIG. 4 is an explanatory diagram showing a usage mode of the lid of the table. [Figure 16] FIG. 4 is an explanatory diagram showing how the grooves of the table are used. [Figure 17] FIG. [Figure 18] FIG. [Figure 19] FIG. 4 is an explanatory diagram showing how the legs of the table are attached to the tabletop. [Figure 20] FIG. 4 is an exploded perspective view showing a main part of the table top support of the table. [Figure 21] FIG. 4 is an exploded perspective view showing how the brackets of the table are attached to the legs. [Figure 22] FIG. 4 is a plan view showing the table brackets attached to the legs. [Diagram 23] FIG. 4 is a front view showing the table bracket attached to the leg. [Figure 24] FIG. 4 is a central vertical cross-sectional view showing the table bracket attached to the leg. [Diagram 25] FIG. 13 is an overall perspective view showing another table according to the same embodiment. [Figure 26] FIG. [Figure 27] FIG. [Figure 28] 27 is a cross-sectional view of the tabletop taken along lines EE and FF in FIG. 26. [Figure 29] FIG. 4 is an exploded perspective view showing a mounting manner of a groove forming member and an end cap of the table. [Diagram 30] FIG. 4 is a plan view showing the vicinity of an end of the bottomed groove of the table. [Diagram 31] 31 is a cross-sectional view taken at the center in the width direction of the bottomed groove in FIG. 30. [Diagram 32] FIG. 4 is a perspective view showing a groove forming member and an end cap of the table. [Diagram 33] FIG. 25 is a plan view showing the table top of the table shown in FIGS. 1 to 24. [Diagram 34] FIG. 33 is a plan view showing the table top of the table shown in FIGS. 25 to 32. [Diagram 35] FIG. 4 is a perspective view showing a state in which the felt panel is attached to the table according to the embodiment. [Diagram 36] FIG. 13 is a perspective view showing the table with the felt panel deformed and attached thereto. [Figure 37] FIG. 2 is a front view showing the felt panel according to the embodiment. [Figure 38] FIG. 4 is an enlarged side view of the felt panel according to the embodiment. [Figure 39] FIG. 38 is an enlarged view of a main part in FIG. 37. [Diagram 40] FIG. 4 is an enlarged perspective view of the vicinity of the easily deformable region of the felt panel according to the embodiment. [Diagram 41] FIG. 4 is a perspective view showing a state in which the felt panel is attached to the table according to the embodiment. [Diagram 42] FIG. 42 is a perspective view showing the felt panel of FIG. 41 in a deformed state. [Diagram 43] FIG. 2 is a front view showing the felt panel according to the embodiment. [Diagram 44] FIG. 4 is an enlarged side view showing a lower portion of the felt panel according to the embodiment. [Diagram 45] FIG. 2 is a perspective view showing a state in which an acrylic panel is attached to a table according to the embodiment. [Diagram 46] FIG. 2 is a front view showing the acrylic panel according to the embodiment. [Figure 47] FIG. 4 is an enlarged side view showing a lower portion of the acrylic panel according to the embodiment. [Figure 48] FIG. 2 is an exploded perspective view showing the acrylic panel according to the embodiment. [Figure 49] FIG. 2 is a perspective view showing a state in which a reading stand is attached to a table according to the embodiment. [Figure 50] FIG. [Figure 51] FIG. [Figure 52] FIG. [Diagram 53] FIG. 4 is a perspective view showing a state in which the planting box is attached to the table according to the embodiment. [Figure 54] FIG. [Figure 55] FIG. 4 is a side view showing the planting box according to the embodiment. [Figure 56] FIG. 2 is a perspective view showing a state in which the shelf is attached to the table according to the embodiment. [Figure 57]FIG. 2 is a front view showing the shelf according to the embodiment. [Figure 58] FIG. 4 is a side view showing the shelf according to the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0018] This embodiment describes six types of optional parts used in connection with a table with two laminated wood tops (hereinafter sometimes referred to as a "table with two laminated wood tops") and a table with two tops with melamine veneer (hereinafter sometimes referred to as a "table with two melamine tops"). The present invention is applied to each of these optional parts: (1) Z-type felt panel and (2) noren-type felt panel.

[0019] (Fig. 1 to Fig. 24) As shown in Figures 1 to 6, 17 and 18, the table S2T with two laminated wood tops is a pair of tops 1 with roughly the same depth dimension, arranged with their opposite use ends 1b facing each other, with a through groove 10 (groove m) that penetrates vertically between the opposite use ends 1b of both tops 1, and bottomed grooves 11, 12 (groove m) that are parallel to the through groove 10 formed in the upper surface 1c of each top plate 1. The through groove 10 connects the upper surface 1c (top surface f) side and the lower surface 1d side of the top plate 1, and is shaped to allow the insertion of wiring and the passage of thin posts, etc.

[0020] The tabletop 1 is rectangular in plan view with a certain depth dimension, and is made of thick boards made of laminated wood. The through groove 10 formed between the opposite ends 1b of the tabletop 1 is formed continuously from one end to the other in the left-right direction of the tabletop 1, as shown in Figures 1, 2, 4 to 6, 17 and 18, and has a constant standard groove width n as a whole.

[0021] The bottomed grooves 11 and 12 have a width dimension that is approximately the same as the standard groove width n of the through groove 10. In this embodiment, as shown in Figs. 1, 2, 4 to 6, 17 and 18, a first bottomed groove 11 near the through groove 10 and a second bottomed groove 12 near the use end 1a of the top plate 1 are provided in each tabletop 1. In this embodiment, the through groove 10 located in the center in the depth direction and the first and second bottomed grooves 11 and 12 provided in each tabletop 1 are arranged in parallel at a constant pitch. These through grooves 10 and bottomed grooves 11 and 12 are parallel to the use end 1a of the tabletop 1, and a partial through groove 13 is provided in the middle of the first bottomed groove 11, as shown in Fig. 5. The partial through groove 13 has a standard groove width portion 13a having a standard groove width n substantially the same as that of the bottomed groove 11, and an enlarged groove width portion 13b wider than the standard groove width portion 13a, and the standard groove width portion 13a of the partial through groove 13 is continuous with the bottomed groove 11. More specifically, as shown in FIG. 5, the partial through groove 13 has an enlarged groove width portion 13b for forming an opening p through which a bulky outlet, connector, etc. can pass, and the standard groove width portion 13a continuing with the bottomed groove 11 is provided on both the left and right ends of the enlarged groove width portion 13b. For example, as shown in FIG. 13 and FIG. 14, the partial through groove 13 can play a role of inserting a clamp k for attaching options such as an outlet C on the top plate 1, and the clamp k inserted from the enlarged groove width portion 13b is moved laterally to engage with the standard groove width portion 13a, thereby fixing the options on the top plate 1. In this embodiment, the standard groove width portion 13a of the partial through groove 13 has an upper half portion with the standard groove width n, and a lower half portion with a reduced groove width n0 narrower than the standard groove width n. This reduced groove width n0 corresponds to the member thickness dimension of the clamp k.

[0022] 5, 6, and 8 to 13, the enlarged groove width portion 13b of the partial through groove 13 forms an opening p that connects the upper surface 1c side and the lower surface 1d side of the top plate 1, and a lid 14 is arranged on this enlarged groove width portion 13b so as to be able to open and close. The lid 14 is configured to reduce the substantial opening width of the enlarged groove width portion 13b to a groove width corresponding to the standard groove width n in the closed position (CL), and to open the enlarged groove width portion 13b in the open position (OP).

[0023] More specifically, the table S2T has an opening p (widened groove width portion 13a of the partial through groove 13) penetrating vertically in the top plate 1, and a lid 14 is provided in the opening p so as to be openable and closable. As shown in Figs. 10 and 15, the lid 14 has a rectangular shape in a plan view, with an upper surface 14a flush with the top plate surface f in the closed position (CL), and has an article support surface 14b facing upward at a position higher than the upper surface 1c (top plate surface f) of the top plate 1 in the open position (OP). That is, the lid 14 has the article support surface 14b on the bottom side of the portion that becomes the rotating end when opening and closing, and is configured so that the article support surface 14b faces upward in the open position (OP). The article support surface 14b is preferably used, for example, when a device such as a personal computer PC is tilted forward toward the user and placed on the top plate surface f, as shown in Fig. 15.

[0024] The mounting structure of the lid 14 to the opening p is as follows. First, expressing this mounting structure in a higher-level concept, a first support shaft and a second support shaft are provided protruding at an interval in the depth direction of the top plate on either the inner surface of the opening or the outer surface of the lid facing the inner surface, and a first engagement groove that engages with the first support shaft in the closed position and a second engagement groove that engages with the second support shaft are provided on the other side, so that the mounting structure can selectively adopt a one-way rotation mode in which the lid is rotated around the first support shaft by disengaging the second engagement groove from the second support shaft, and a second-way rotation mode in which the lid is rotated around the second support shaft by disengaging the first engagement groove from the first support shaft.

[0025] To explain in detail using reference symbols, the mounting structure of the lid body 14 in this embodiment, as shown in Figures 7 to 12, has a first support shaft 17 and a second support shaft 18 protruding from the inner surface pa of the opening p at a distance in the depth direction of the top plate, and a first engagement groove 15 that engages with the first support shaft 17 in the closed position (CL) and a second engagement groove 16 that engages with the second support shaft 18 are provided on the outer surface 14c of the lid body 14, so that the article support surface 14b faces upward when a one-way rotation mode is adopted in which the second engagement groove 16 is disengaged from the second support shaft 18 and the lid body 14 is rotated around the first support shaft 17.

[0026] The first and second engagement grooves 15, 16 are recessed and open to the outer surface 14c and bottom surface 14d of the lid body 14, respectively. As shown in FIG. 10, the inner end of the first engagement groove 15 is provided with a curved groove portion 15a with which the first support shaft 17 engages to prevent the lid body 14 from falling when the lid body 14 is opened by rotating it in one direction.

[0027] As shown in Fig. 11, the second engagement groove 16 has a guide cam portion 16a that comes into sliding contact with the second support shaft 18 on the way of returning the lid body 14 to the closed position, and the guide cam portion 16a is shaped so as to use the force returning the lid body 14 to the closed position (CL) to pull the lid body 14 in a direction in which the first support shaft 17 comes out of the bent groove portion 15a. Fig. 9 shows a state in which the lid body 14 has been removed, and Fig. 12 shows a state in which the lid body 14 is held in the closed position (CL).

[0028] The lid 14 has a pivoting end 14e disposed parallel to the use end 1a and the anti-use end 1b of the top plate 1, and is configured so that when the lid 14 is opened in the one-way pivoting manner described above, the pivoting end 14e moves parallel to the use end 1a of the top plate 1. On the other hand, when the lid 14 is returned to the closed position (CL), as shown in Fig. 12, the upper surface 14a of the lid 14 becomes flush with the top plate surface f, and the enlarged groove width portion 13b of the partial through groove 13 is also closed, leaving an opening of the standard groove width n.

[0029] As described above, on the top surface f formed by the two top plates 1 of this table S2T, as shown in Figs. 1, 2, 5 and 6, one through groove 10 formed between the two top plates 1 and two bottomed grooves 11, 12 formed on each top plate 1 are arranged in parallel with the same standard groove width n. In this embodiment, the left and right ends of the bottomed grooves 11, 12 reach the left and right ends of the top plate 1 and are open, so that the bottomed grooves 11, 12 and the through grooves 10 are arranged in an orderly manner with an equal presence. In other words, the top surface f has an appearance in which five parallel grooves m are arranged at an equal pitch. As shown in Fig. 16, a smartphone SP, a tablet terminal, etc. can be leaned against the bottomed grooves 11, 12 and used.

[0030] As shown in Figures 1, 3, 4, 17 and 18, the two paired tabletops 1 are detachably attached to and supported by a tabletop support 3. The tabletop support 3 comprises a plurality of legs 31, a plurality of brackets 32 for attaching the upper ends of the legs 31 to the underside 1d of the tabletop 1, and tabletop support frames 38, 39 that connect the brackets 32 together and are attached to the underside 1d of the tabletop 1.

[0031] That is, as shown in Figures 18 and 19, this table S2T has its upper ends attached to a bracket mounting portion q provided on the underside 1d of the table top 1 via a bracket 32, and the leg 31 is provided with fastening elements 34, 35 for fastening its upper end to the bracket 32.

[0032] 17 to 24, the bracket 32 ​​includes a bracket body 33 having an upward contact surface 33a that contacts the underside 1d of the tabletop 1 and a downward mounting surface 33b that contacts the upper end surface 31z of the leg 31, and a concealing portion 36 that is provided on the bracket body 33 and conceals the fastening elements 34, 35 when the leg 31 is fastened. The bracket 32 ​​in this embodiment is made of, for example, aluminum die casting, and the bracket body 33 and the concealing portion 36 are molded integrally.

[0033] 19 to 22, the bracket 32 ​​has bolt insertion holes 33c for mounting the tabletop, for screwing the bracket body 33 to the tabletop 1, in a portion not hidden by the concealing portion 36, and is configured so that the tabletop 1 can be detachably connected to the bracket 32 ​​while the legs 31 remain attached to the bracket 32. Specifically, the bracket 32 ​​has bolt insertion holes 33c in four locations on the outer edge thereof, and as shown in FIG. 19, the bracket 32 ​​can be attached to the underside 1d of the tabletop 1 by screwing mounting bolts B0 inserted from below into the bolt insertion holes 33c into embedded nuts N embedded in the bracket mounting portion q of the tabletop 1.

[0034] 21, the leg 31 includes bolt insertion holes 31a, 31b opening on an upper end surface 31z, fastening element mounting holes 31c, 31d opening on a side surface 31x and perpendicular to the bolt insertion holes 31a, 31b, and fastening elements (pin-shaped nuts) 34, 35 mounted in the fastening element mounting holes 31c, 31d and having female screw holes 34a, 35a at positions corresponding to the bolt insertion holes 31a, 31b. The leg 31 is fastened to the bracket 32 ​​by inserting the bolts B1, B2 penetrating the bracket 32 ​​from top to bottom into the bolt insertion holes 31e and screwing them into the female screw holes 34a, 34b of the fastening element 34.

[0035] 21, at least the upper end of the leg 31 is columnar with an inward end face 31y facing the lower leg space and both side faces 31x continuing from the inward end face 31y, and the concealing portion 36 of the bracket 32 ​​described above is wall-like and partially covers the inward end face 31y and both side faces 31x. That is, the leg 31 has stepped recesses 31ya, 31xa formed in the inward end face 31y continuing from the upper end face 31z and the upper end portions of both side faces 31x, and the concealing portion 36 described above is fitted externally into the stepped recesses 31ya, 31xa of the inward end face 31y and both side faces 31x. The fastening element mounting holes 31c, 31d open into stepped recessed portions 31xa on both side surfaces 31x of the leg 31, and the fastening elements 34, 35 mounted in the fastening element mounting holes 31c, 31d are completely hidden by the concealing portion 36 when the leg 31 is attached to the bracket 32.

[0036] 21, a first bolt insertion hole 31a, two second bolt insertion holes 31b, and a female screw hole 31ea for two embedded nuts 31e are formed in an upper end surface 31z of the leg 31, and a first fastening element mounting hole 31c perpendicular to the first bolt insertion hole 31a and a second fastening element mounting hole 31d perpendicular to the second bolt insertion hole 31b are formed in a side surface 31x of the leg 31. A pin-shaped first fastening element 34 having a female screw hole 34a at a position corresponding to the first bolt insertion hole 31a is mounted in the first fastening element mounting hole 31c, and a pin-shaped second fastening element 35 having a female screw hole 35b at a position corresponding to the second bolt insertion hole 31b is mounted in the second fastening element mounting hole 31d. The first fastening bolt B1, which has been inserted into the first bolt insertion hole 31a of the leg 31 by penetrating the bracket 32 ​​from the upper surface side of the bracket 32, is screwed into the female threaded hole 34a of the first fastening element 34, while the two second fastening bolts B2 inserted into the second bolt insertion hole 31b are screwed into the two female threaded holes 35a of the second fastening element 35, and further, the third fastening bolt B3, which has been inserted into the bracket 32 ​​from the upper surface side of the bracket 32, is screwed into the female threaded hole 31ea of ​​the embedded nut 31e of the leg 31, thereby firmly fastening the leg 31 to the bracket 32. In this fastened state, the bracket 32 ​​is attached to the underside 1d of the tabletop 1. In the fastening state, the first fastening element 34 attached to the first fastening element mounting hole 31c and the second fastening element 35 attached to the second fastening element mounting hole 31d are all covered by the concealing portion 36 of the bracket 32 ​​and cannot be seen from the outside. In addition, since the upper surface 32a of the bracket 32 ​​is in contact with the lower surface of the top plate 1, the heads of the fastening bolts B1, B2, B3 described above also cannot be seen from the outside.

[0037] Each bracket 32 ​​is provided with a pair of frame attachment portions 37 for attaching a vertical tabletop support frame 38 extending in the depth direction of the tabletop 1 and a horizontal tabletop support frame 39 extending in the width direction of the tabletop 1, as shown in Figures 19 to 24. The vertical and horizontal tabletop support frames 38, 39 are made of rectangular pipe material, as shown in Figures 19 and 20, and a rectangular bolt seat Z is installed between both side walls near the ends. The bolt seat Z has a bolt insertion hole Za with the axis j facing diagonally downward, and windows 38b, 39b for inserting a bolt are provided in the bottom walls 38a, 39a of the tabletop support frames 38, 39 at the positions where the axis j passes through. The frame mounting portion 37 of the bracket 32 ​​is a rectangular block having a tip wall 37a against which the end faces 38c, 39c of the top plate support frames 38, 39 abut, and a bolt insertion hole 37b is formed in the tip wall 37a to insert the diagonal bolt Bz inserted through the bolt insertion hole Za of the bolt seat Z, and a nut (not shown) into which the diagonal bolt Bz is screwed is held inside. A pressure-receiving protrusion 37c that abuts against the inner surfaces of the bottom walls 38a, 39a of the top plate support frames 38, 39 is integrally formed on the tip wall 37a. This pressure-receiving protrusion 37c is for firmly connecting the top plate support frames 38, 39 to the bracket 32 ​​with the diagonal bolt Bz. That is, when the diagonal bolt Bz with its axis j inclined is screwed into the nut through the bolt seat Z and tightened, the top plate support frames 38, 39 are raised and urged in a direction approaching the tip wall 37a, and the bottom walls 38a, 39a are pressed against the lower surface of the pressure-receiving projection 37c, and the end faces 38c, 39c are pressed against the tip wall 37a while the pressing force is strengthened, so that the top plate support frames 38, 39 can be firmly connected to the bracket 32 ​​while being positioned. Each bracket 32 ​​is provided with a pair of frame attachment parts 37 with orientations differing by 90°, so that the vertical top plate support frame 38 and the horizontal top plate support frame 39 can be connected to each bracket 32, respectively. The top plate support frames 38, 39 are fixed to the top plate 1 with a screw at the intermediate fixing point s, thereby making the fixation of the top plate 1 more reliable.

[0038] Here, FIG. 1 is an overall perspective view of the table S2T with two laminated wood top plates described above, FIG. 2 is a plan view of the same, FIG. 3 is a front view of the same, and FIG. 4 is a bottom view of the same. FIG. 5 is a plan view showing an enlarged view of the main part of the top plate 1. (a), (b) and (c) of FIG. 6 are cross-sectional views of the top plate 1 taken along lines AA, BB and CC in FIG. 2, respectively. FIG. 7 is a perspective view showing the state in which the lid body 14 is attached to the opening p. FIG. 8 is a perspective view showing an enlarged view of the main part of the top plate 1 with the lid body 14 in the open position (OP). FIG. 9 is a cross-sectional view of the top plate 1 taken along line DD in FIG. 2, showing the lid body 14 in a raised position. FIG. 10 is a view showing the state in which the lid body 14 is in the open position (OP). FIG. 11 is a view showing the state in which the lid body 14 is in the middle of returning from the open position (OP) to the closed position (CL). FIG. 12 is a view showing the state in which the lid body 14 is in the closed position (CL). FIG. 13 is a diagram showing a state in which the cover 14 is opened in a rotating manner in the other direction and the clamp k is inserted inside the opening p. In addition, in FIGS. 10 to 13, the top plate 1 is cut at the same position as in FIG. 9. FIG. 14 is a cross-sectional view of the main part showing a state in which the clamp k is arranged in the standard groove width portion 13a of the partial through groove 13. FIG. 15 is a diagram showing a state in which the cover 14 is in the open position (OP) and a personal computer PC is supported on the article support surface 14b. FIG. 16 is a diagram showing a state in which a smartphone SP is leaned up in the groove m. FIG. 17 is an exploded perspective view of the top plate 1 and the top plate support 3 separated from each other and seen from above, and FIG. 18 is an exploded perspective view of the same seen from below. FIG. 19 is a diagram showing a manner in which the legs 31 and the bracket 32 ​​are attached to the lower surface 1d of the top plate 1. FIG. 20 is an exploded perspective view of the legs 32 and the top plate support frames 38 and 39 attached to the legs 31 as seen from below. FIG. 21 is an exploded perspective view of the legs 31 and the bracket 32 ​​attached to the legs 31 as seen from above. Fig. 22 is a plan view showing a state in which bracket 32 ​​is attached to leg 31. Fig. 23 is a front view of the same, and Fig. 24 is a central vertical cross-sectional view of the same.

[0039] FIG. 33 is a plan view that shows only the top plate 1, and the through-holes (through groove 10, partial through groove 13) with the cover 14 removed are shown painted black.

[0040] (Fig. 25~Fig. 32) The table M2T with two melamine tops is a pair of tops 101 with approximately the same depth dimension, arranged with the opposite ends 101b facing each other, with a through groove 110 formed between the opposite ends 101b of both tops 101, penetrating vertically, and bottomed grooves 111, 112 parallel to the through groove 110 formed on the upper surface 101c of each top 101. In this respect, it is common to the table S2T with two laminated wood tops described above, but since the specific configuration of the top 101 is different, the parts related to the top 101 are given different reference numerals from those of the table S2T. Other than the parts related to the top 101, the same reference numerals are used for the parts that are the same or correspond to those of the table S2T with two laminated wood tops, and explanations are omitted.

[0041] This table M2T differs from the above-mentioned table S2T in the following respects.

[0042] This table M2T differs from table S2T, which has two laminated wood tabletops, in the material and shape of the table top 101. That is, the table top 101 of this table M2T is made of a core material with a melamine decorative board attached to the surface, and bottomed grooves 111, 112 formed in each table top 101 have both left and right ends 111a, 112a that are closed near both left and right ends 101e of the table top 101. Both end portions 111b, 112b of the bottomed grooves 111, 112 are configured so that their depths gradually decrease and become approximately zero at the extreme ends (both ends 111a, 112a). Specifically, the bottomed grooves 111 and 112 are formed by embedding a groove forming member G having a constant depth dimension at each portion and end caps H that are fitted to both ends of the groove forming member G and form the ends 111b and 112b of the bottomed grooves 111 and 112 in an attachment groove 101f recessed in the upper surface 101c of the top plate 101. The groove forming member G and the end caps H are each made of synthetic resin and are fitted in a state in which a slight relative movement in the longitudinal direction is allowed. That is, the groove forming member G is a channel-shaped member having the same cross-sectional shape at each portion, and the opening width is set to the standard groove width n described above. The end cap H includes a cap body Hb formed so that the bottom wall Ha gradually rises toward the outer end, and a fitting portion Hc formed integrally with the inner end of the cap body Hb and fitted into the outer end surface of the groove forming member G. The groove forming member G and the end cap H are fitted in a state in which a slight relative movement in the longitudinal direction is allowed. Specifically, the groove forming member G and the end cap H are fitted into an attachment groove 101f engraved into the top plate surface f with a small gap c remaining between the end face of the groove forming member G and the cap body Hb, so as to be able to accommodate dimensional errors and expansion and contraction of the members due to temperature.

[0043] In addition, in this table M2T, not the entire through groove 110 but a part of it has the standard groove width n. In other words, the through groove 110 formed between the opposite ends 101b of the top plate 101 has a standard groove width portion 110a having a constant standard groove width n and an enlarged groove width portion 110b that is wider than the standard groove width portion 110a. In this embodiment, the opening p formed by the enlarged groove width portion 110b is left open, and no special lid is provided. The standard groove width portion 110a is set to the standard groove width n.

[0044] In this table M2T, two bottomed grooves 111, 112 are formed in each top plate 101. Each of the bottomed grooves 111, 112 has a standard groove width n as a whole, and has the same width dimension as the standard groove width portion 110a of the through groove 110.

[0045] Here, Fig. 25 is an overall perspective view of the above-mentioned table M2T with two melamine tops, Fig. 26 is a plan view of the same, and Fig. 27 is a bottom view of the same. Fig. 28(a) and (b) are cross-sectional views of the top plate 101 taken along lines EE and FF in Fig. 26, respectively. Fig. 29 is an exploded perspective view showing the manner in which groove forming member G and end cap H are attached to the top plate 101. Fig. 30 is a plan view showing the vicinity of end 111b of bottomed groove 111. Fig. 31 is a cross-sectional view taken at the widthwise center of bottomed groove 111 in Fig. 30. Fig. 32 is a perspective view showing groove forming member G and end cap H.

[0046] FIG. 34 is a plan view that shows only the top plate 101, and the through-holes (through-hole grooves 110) are shown painted black.

[0047] <Optional parts used on the table> (Fig. 35 to Fig. 58) The tables S2T and M2T described above each have a plurality of parallel grooves m (through grooves 10, 110 and bottomed grooves 11, 12, 111, 112) in the top surface f, and these grooves m can be used to mount various optional components described in the following (1) to (6).

[0048] (1) Z-type felt panel (Figures 35 to 40) The felt panel 4, which is an optional member, is a panel used on the top plate 1, 101 of the above-mentioned table S2T, M2T, is made of a single material, and is partially provided with an easily deformable region 41 that is easier to deform than other regions. The felt panel 4 has a constant thickness throughout, including the easily deformable region 41, and multiple cut lines 42 are provided in the easily deformable region 41 so as to face in the same direction and not to interfere with each other. Specifically, the felt panel 4 is made of a felt material having a constant thickness, and is substantially rectangular in its initial position (see Figures 35, 37, and 38) when not deformed. The cut lines 42 provided in the easily deformable region 41 are linear and formed to penetrate from one panel surface 4a to the other panel surface 4b. As shown in Figure 39, in the easy-to-deform region 41, multiple parallel cut line rows 43 are formed, with multiple cut lines 42 intermittently arranged in the longitudinal direction (vertical direction), and the cut lines 42 of adjacent cut line rows 43 are positioned differently in the longitudinal direction so that they are not aligned horizontally.

[0049] More specifically, this felt panel 4 is a panel having a plurality of regions 44, 45 adjacent to each other in the left-right direction, and the easy-to-deform region 41 is a vertically extending band-like region having a substantially vertical cut line 42, and is disposed at the adjacent boundary portion of the regions 44, 45. Specifically, this felt panel 4 is partitioned by two parallel easy-to-deform regions 41 extending vertically into a middle region 44 and end regions 45 located on both sides of the middle region 44, and by deforming the easy-to-deform region 41, the overall shape can be changed to a bent position that is substantially Z-shaped in plan view (see FIG. 36). Near the lower end of the end region 45, a locking protrusion 46 is formed by penetrating a cylindrical felt material, and by fitting the lower end 45a of the end region 45 (protrusion t4 located below the downward surface s4 of the locking protrusion 46) into the groove m of either the table S2T or M2T and locking the downward surface s4 of the locking protrusion 46 to the top surface f, the felt panel 4 can be placed in an upright position on the top surface f.

[0050] Since the thickness dimension 4c of the felt panel 4 is set to be equal to or slightly larger than the standard groove width n of the groove m of the table S2T, M2T, the lower end portion 45a of the end region 45 constituting the protrusion t4 protruding downward from the downward surface s4 of the locking protrusion 46 can be fitted or pressed into the desired groove m (bottomed grooves 11, 12, 111, 112, through grooves 10, 110) and can be installed without rattling on the top plate surface f without using any auxiliary tools. The protrusion t4 in this embodiment is plate-shaped with a width dimension w4 corresponding to the width dimension of the groove m.

[0051] 35 shows an example in which the felt panel 4 in the initial position is used as a desktop panel by standing it up in the center of the table S2T using the through groove 10. In this usage mode, the installation position can be freely changed along the through groove 10. Also, if the protruding dimension of the projection t4 that protrudes downward from the downward surface s4 of the locking protrusion 46 is set within the depth dimension of the bottomed grooves 11, 12, the felt panel 4 can also be stood up using the bottomed grooves 11, 12.

[0052] 36 shows an example in which the bent felt panel 4 is erected on the top surface f of the table S2T by utilizing the two bottomed grooves 12 and used as a side panel. In this case too, the installation position of the felt panel 4 can be changed in the left-right direction by changing the fitting position with respect to both bottomed grooves 12. Also, by appropriately selecting the groove m into which the protrusion t4 of the end region 45 fits, the orientation of the middle region 44 can be changed, allowing for convenient use as a versatile partition.

[0053] Here, Fig. 37 is a front view of the felt panel 4 in its initial position, and Fig. 38 is an enlarged side view of the felt panel 4. Fig. 39 is an enlarged front view showing a part of the easy-to-deformation region 41 of the felt panel 4. And Fig. 40 is an enlarged perspective view of the easy-to-deformation region 41 and its vicinity in a state in which the easy-to-deformation region 41 of the felt panel 4 has been deformed.

[0054] This felt panel 4 can also be installed in a similar manner on the top surface f of the table M2T by utilizing the through groove 110 and bottomed grooves 111, 112 of the table M2T.

[0055] (2) Felt Panel Noren Type (Figures 41 to 44) The felt panel 5, which is an optional member, is a panel used on the top plate 1, 101 of the above-mentioned table S2T, M2T, is made of a single material, and is partially provided with an easily deformable region 51 that is more easily deformed than other regions. The felt panel 5 has a constant thickness throughout, including the easily deformable region 51, and multiple cut lines 52 are provided in the easily deformable region 51 so as to face in the same direction and not to interfere with each other. Specifically, the felt panel 5 is made of a felt material having a constant thickness, and is substantially rectangular in the initial position (solid lines in Figures 41, 43, and 44) ​​in which it is not deformed. The cut lines 52 provided in the easily deformable region 51 are formed so as to penetrate from one panel surface 5a to the other panel surface 5b, and each cut line 52 extends horizontally.

[0056] More specifically, this felt panel 5 has a lower edge 5e with a plurality of (two) dividing lines 54 that divide the material at intervals in the left-right direction, forming a curtain section 55 with an open lower edge 55a between the dividing lines 54, and the easily deformable region 51 is provided so that the curtain section 55 can be deformed in the thickness direction. In the illustrated example, the easily deformable region 51 is provided over the entire curtain section 55, but the easily deformable region may be provided only in the upper part of the curtain section 55.

[0057] This felt panel 5 has a locking protrusion 57 formed by penetrating a cylindrical felt material near the lower end of end regions 56 located on both sides of the curtain portion 55, and the felt panel 5 can be placed in an upright position on the tabletop surface f by fitting the lower end 56a (protrusion t5 located below the downward surface s5 of the locking protrusion 57) of the end region 56 into one of the grooves m of the table S2T and locking the downward surface s5 of the locking protrusion 57 to the tabletop surface f.

[0058] The thickness dimension 5c of the felt panel 5 is set to be the same as or slightly larger than the standard groove width n of the groove m of the table S2T, so that the lower end portion 56a of the end region 56 constituting the protrusion t5 that protrudes downwardly below the downward surface s5 of the engaging convex portion 57 can be fitted or pressed into the desired groove m (bottomed grooves 11, 12, 111, 112, through grooves 10, 110), and can be installed without any rattling on the tabletop surface f without using any auxiliary tools.

[0059] Thus, the protrusion t5 in this embodiment is also plate-like and has a width w5 that corresponds to the width of the groove m (standard groove width n).

[0060] In this embodiment, the lower end of the curtain portion 55 is set at the same height as the lower end of the end region 56, so that not only the lower end 56a of the end region 56 but also the lower end of the curtain portion 55 can be engaged with the groove m for use.

[0061] Fig. 41 shows an example in which the felt panel 5 is attached to a table S2T with two laminated wood tops. In this case, the lower end 56a (projection t5) of the end area 56 is engaged with the groove m (standard groove width portion 13a and bottomed groove 11 of the partial through groove 13) so that the curtain portion 55 corresponds to the opening p (widened groove width portion 13b of the partial through groove 13). According to this mode of use, since the curtain portion 55 can be deformed in the thickness direction as shown in Fig. 42, it becomes possible to smoothly lead wiring from under the floor onto the top surface f with the lid 14 open to open the opening p.

[0062] When this felt panel 5 is used on the top surface f of the table M2T, it is desirable to place the curtain portion 55 so as to correspond to the enlarged groove width portion 110b of the through hole 110.

[0063] Here, Fig. 43 is a front view of the felt panel 5, and Fig. 44 is an enlarged partial side view of the felt panel 5. In Fig. 44, the state in which the curtain part 55 is deformed in the thickness direction is shown by imaginary lines.

[0064] (3) Acrylic panel (Figures 45 to 48) The acrylic panel 6, which is an optional member, is used on the top plate 1, 101 having grooves m (through grooves 10, 110, bottomed grooves 11, 12, 111, 112) on the upper surface 1c, 101c, and has a downward surface s6 that abuts on the upper surface 1c, 101c of the top plate 1, 101, i.e., the top plate surface f, and is equipped with a protrusion t6 that protrudes downward from the downward surface s6, so that the protrusion t6 can be engaged with the groove m. The protrusion t6 is an elastically deformable thick plate or block-like member, and is configured so that the protrusion t6 can be elastically engaged with the groove m.

[0065] The groove m may be the aforementioned through groove 10, 110 or the bottomed groove 11, 12, 111, 112, and the protrusion t6 has a width dimension w6 slightly larger than the standard groove width n of the through groove 10, 110 and the bottomed groove 11, 12, 111, 112. The width dimension w6 of the protrusion t6 may be the same as the standard groove width n of the groove m, but by setting it slightly larger, the protrusion t6 can be elastically engaged with the corresponding groove m without rattling.

[0066] More specifically, the acrylic panel 6 comprises an acrylic panel body 61 and felt legs 62 fitted to the lower end portions near both ends of the panel body 61, and the lower surfaces of the legs 62 are provided with a downward surface s6 that abuts against the top plate surface f and the above-mentioned protrusions t6 that protrude downward from the downward surface s6. The panel body 61 may be transparent or translucent. Specifically, as shown in FIG. 48, a mounting slit 61a having a width corresponding to the thickness of the leg 62 is formed on the lower end side of the panel body 61 so as to open downward, and a mounting slit 62a having a width corresponding to the thickness of the panel body 61 is formed in the leg 62, and each leg 62 is attached to the panel body 61 by engaging these mounting slits 61a, 62a.

[0067] Figure 45 shows an example in which this acrylic panel 6 is attached to a through groove 10 located in the center of the depth direction of the table S2T and used like a desktop panel, but this acrylic panel 6 can be erected at any appropriate position on the table top surface f by utilizing other grooves m.

[0068] Here, Fig. 46 is a front view of the acrylic panel 6, and Fig. 47 is an enlarged partial side view of the acrylic panel 6. Fig. 48 is an exploded perspective view of the acrylic panel 6.

[0069] (4) Lectern (Figs. 49 to 52) The book stand 7, which is an optional component, is used on the top surface f of the top plate 1, 101 which has a number of grooves m (through grooves 10, 110, bottomed grooves 11, 12, 111, 112) and has a downward surface s7 which abuts the upper surface 1c, 101c of the top plate 1, 101, i.e., the top surface f, and is provided with a protrusion t7 which protrudes downward from the downward surface s7, and is configured so that the protrusion t7 can engage with the groove m.

[0070] More specifically, the reading stand 7 comprises a base plate 71 placed on the top plate surface f, and a standing plate 72 that stands upright from the front edge of the base plate 71 in a backward tilted position, with a downward surface s7 formed on the underside of the base plate 71 that abuts against the top plate surface f, and a protrusion t7 that protrudes downward from the downward surface s7 vertically provided on the rear edge of the base plate 71. The base plate 71 and the standing plate 72, including the protrusion t7, are integrally formed by bending a sheet metal material. A tip-over prevention plate 73 cut and raised from the base plate 71 is integrally provided at the center of the lower end of the standing plate 72.

[0071] 49 shows the reading stand 7(x) placed in a positioned state on the top surface f by utilizing the bottomed groove 12 of the table S2T. That is, the protrusion t7 of the reading stand 7(x) is inserted into the bottomed groove 12, and the reading stand 7(x) is positioned in the front-to-rear direction, but can be freely moved in the left-to-right direction along the bottomed groove 12. Since the reading stand 7(x) is made of sheet metal, documents and the like can be freely held on the front surface of the standing board 72 by using a magnet or the like.

[0072] FIG. 49 shows the case where the reading stand 7(y) is used as a tilt table for placing devices such as a personal computer, which is different from the initial purpose. In the reading stand 7(y) installed for the purpose of using it as a tilt table, the protruding width dimension g7 of the protrusion t7 of the base plate 71 is set to be equal to or less than the standard groove width n of the bottomed groove 12, and the free end 72a side of the standing plate 72 can be positioned on the use end 1a side of the top plate 1, and the protrusion t7 can be inserted into the bottomed groove 12 together with the base plate 71. As a result, the standing plate 72 can be placed on the top plate surface f in a lying state, and the standing plate 72 is in a forward-leaning position relative to the user. Therefore, it is possible to support a personal computer or the like on the standing plate 72 in a forward-leaning position. In this way, the reading stand 7 can also be used as a tilt table for a personal computer or the like.

[0073] Here, FIG. 50 is a front view of the book stand 7, FIG. 51 is a side view thereof, and FIG. 52 is a bottom view thereof.

[0074] (5) Planting box (Figs. 53-55) The planting box 8, which is an optional component, is used on a top plate surface f having a plurality of grooves m (through grooves 10, 110, bottomed grooves 11, 12, 111, 112), and has a downward surface s8 that abuts against the upper surfaces 1c, 101c of the top plates 1, 101, i.e., the top plate surface f, and is provided with a plurality of protrusions t8 that protrude downward from the downward surface s8. The relative positions of the protrusions t8 are set so that a first installation mode (L1) in which each protrusion t8 is engaged with one groove m, and a second installation mode (L2) in which each protrusion is engaged with a different groove can be selectively adopted.

[0075] More specifically, the planting box 8 comprises a top plate 81 having an opening window 81a, end plates 82 extending downward from both ends of the top plate 81, and a channel member 83 that is installed between the end plates 82 and forms a box-shaped structure in cooperation with the end plates 82 and the top plate 81. The top plate 81 and both end plates 82 are integrally formed by bending a sheet metal material, and the sheet metal channel member 83 is attached to the top plate 81 and end plates 82 by welding or the like.

[0076] The lower ends of both end plates 82 are formed with a bent portion 82a that bends inward and a protrusion t8 that hangs down without bending, and the bent portion 82a has a downward surface s8 that abuts against the top plate surface f. The protrusion t8 protrudes downward from this downward surface s8. The width dimension w8 of each protrusion t8 is set to be equal to or less than the width of the groove m of the table S2T, M2T (standard groove width n of a through groove and a bottomed groove), so that the first installation mode (L1) described above can be adopted. In addition, the separation distance between both protrusions t2 is set to correspond to the separation distance between specific grooves m of the table S2T, M2T, so that the second installation mode (L2) described above can also be adopted. In this embodiment, the distance d1 between the central groove m (through groove 10, 110) of the table S2T, M2T and the use end 1a, 101a is set equal to the distance d2 between the second bottomed grooves 12, 112. This planting box 8 can be used not only as a tray for displaying natural or artificial plants, but also as a storage container for storing shared items, etc.

[0077] Fig. 53 shows an example of a state in which the planting box 8(x) is placed on the top plate surface f of the table S2T, M2T in the first installation mode (L1). In this state, both protrusions t8 are inserted into one groove m (a through groove or a bottomed groove) and positioned, and the downward surface s8 is supported in contact with the top plate surface f.

[0078] 53 also shows an example of a state in which the planting box 8(y) is placed on the top surface f of the table S2T, M2T in the second installation mode (L2). In this mode, one protrusion t8 of the planting box 8(y) is engaged with the groove m (through groove 10, 110) of the table S2T, M2T, and the other protrusion t8 is engaged with the use end 1a, 101a of the table S2T, M2T to perform positioning.

[0079] Figure 53 also shows another example of the state in which the planting box 8(z) is placed on the top surface f of the table S2T, M2T in the second installation mode (L2). In this mode, the planting box 8(z) is positioned by engaging one of the protrusions t8 with the groove m (bottomed groove 12) of one of the top plates of the table S2T, M2T, and by engaging the other protrusion t8 with the groove m (bottomed groove 12) of the other top plate of the table.

[0080] Here, FIG. 54 is a front view of the planting box 8, and FIG. 55 is an enlarged side view of the same.

[0081] (6) Shelf (Figures 56 to 58) The shelf 9, which is an optional member, is used on the top surface f of the top plate 1, 101 having a plurality of grooves m (through grooves 10, 110, bottomed grooves 11, 12, 111, 112), and has a downward surface s9 that abuts against the upper surface 1c, 101c of the top plate 1, 101, and is equipped with a plurality of protrusions t9 that protrude downward from the downward surface s9. The relative positions of the protrusions t9 are set so as to selectively take a first installation mode (L1) in which each protrusion t9 is engaged with one groove m, and a second installation mode (not shown) in which each protrusion t9 is engaged with a different groove m.

[0082] More specifically, this shelf 9 comprises a top plate 91, end plates 92 extending downward from both ends of the top plate 91, and a reinforcing channel member 93 installed between these end plates 92. The top plate 91 and both end plates 92 are integrally formed by bending a metal sheet material, and the metal channel member 93 is attached to the top plate 91 and end plates 92 by welding or the like.

[0083] The lower ends of both end plates 92 are formed with a bent portion 92a that is bent inward and a protruding portion t9 that is not bent and hangs down, and the bent portion 92a has a downward surface s9 that abuts against the top plate surface f. The protruding portion t9 protrudes downward beyond this downward surface s9.

[0084] Such a shelf 9 is for more efficient use of the top surface f of the desks S2T and M2T, and can be placed on the top surface f in a manner similar to that of the above-mentioned planting box 8. Furthermore, this shelf 9 can also be placed above the opening p, as shown in FIG.

[0085] Here, FIG. 57 is a front view of the shelf 9, and FIG. 58 is an enlarged side view of the same.

[0086] <Effects of the table and optional members according to this embodiment> With tables S2T and M2T of this configuration, multiple grooves m (through grooves 10, 110 and bottomed grooves 11, 12, 111, 112) are exposed in parallel on the top surface f, and these grooves m can be used appropriately to position and hold the optional members 4 to 9 and the like described above without using any tools. Therefore, despite the simple configuration, a variety of optional arrangements can be made, making it easy to use.

[0087] Furthermore, the through grooves 10, 110 formed between the top plates 1, 101 not only serve as wiring insertion ports that connect the lower surfaces 1d, 101d and the upper surfaces 1c, 101c of the top plates 1, 101, but can also be used as gaps through which columns for supporting desktop panels erected on the floor can pass. In particular, the through grooves 10, 110 are formed continuously from one end to the other end in the left-right direction of the top plates 1, 101, so that the location of use can be freely selected, making them easy to use.

[0088] Furthermore, the bottomed grooves 11, 12, 111, 112 are not limited to being used for holding or positioning the optional members 4 to 9 as described above, but can also be used, for example, to lean a smartphone SP or a tablet terminal (not shown), etc. In particular, in this embodiment, since multiple bottomed grooves 11, 12, 111, 112 are provided in parallel on each tabletop 1, 101, the location of use can be changed not only in the left-right direction but also in the depth direction, allowing for a variety of uses.

[0089] The through grooves 10, 110 may have a constant standard groove width n as a whole as in the table S2T with two laminated wood tops, or may have the standard groove width n only in a portion as in the table M2T with two melamine tops. The through groove 110 in the table M2T with two melamine tops has a standard groove width portion 110a having the standard groove width n and an expanded groove width portion 110b wider than the standard groove width portion 110a, and the existence of the expanded groove width portion 110b forms an opening p that connects the upper and lower surfaces of the top plate 101. Therefore, it is possible to use the opening p to insert not only wiring but also relatively bulky outlets, connectors, or supports erected on the floor surface.

[0090] In addition, since the standard groove width n of the through grooves 10, 110 and the standard groove width n of the bottomed grooves 11, 12, 111, and 112 are unified, not only does it look good, but it also increases the probability that the through grooves 10, 110 and the bottomed grooves 11, 12, 111, and 112 can be used freely without distinguishing between them when holding or positioning various options 4 to 9, thereby improving convenience.

[0091] Furthermore, as in the table S2T with two laminated wood tabletops, if a partial through groove 13 is provided in the bottomed groove 11, the partial through groove 13 having a standard groove width portion 13a having substantially the same standard groove width n as the bottomed groove 11 and an enlarged groove width portion 13b having a width wider than the standard groove width portion 13a, an opening p that connects the upper and lower surfaces of the tabletop 1 can be formed even in the bottomed groove 11 portion. Moreover, if the standard groove width portion 13a of the partial through groove 13 is connected to the bottomed groove 11, not only does the boundary between the bottomed groove 11 and the partial through groove 13 look good, but the partial through groove 13 can be used to easily attach a clamp k that clamps the tabletop 1 from above and below. As shown in FIG. 13, the clamp k is inserted from the opening p formed by the enlarged groove width portion 13b of the partial through groove 13, and is slid left and right to be attached to the standard groove width portion 13a of the partial through groove 13 as shown in FIG. 14, and is used to support a display, a power outlet C, etc. (not shown).

[0092] Also, like the table S2T with two laminated wood tabletops, if a lid 14 is arranged so as to be openable and closable on the enlarged groove width portion 13b of the partial through groove 13, the opening p formed by the enlarged groove width portion 13b can be opened only when necessary. When the lid 14 is closed, the effective opening width of the enlarged groove width portion 13b can be reduced to the standard groove width n, so that the tabletop surface f becomes neat and tidy, and cleaning work such as disinfection can be performed smoothly.

[0093] In table S2T with two laminated wood tops, both left and right ends of bottomed grooves 11, 12 reach both left and right ends of top plate 1 and are open, so dust that has accumulated in bottomed grooves 11, 12 can be easily swept out to the side. On the other hand, in table M2T with two melamine tops, both left and right ends of bottomed grooves 111, 112 are closed near both left and right ends of top plate 101, but the depth dimension of both ends of closed bottomed grooves 111, 112 gradually decreases until it is nearly zero at the extreme end, so that foreign matter in bottomed grooves 111, 112 can be easily discharged.

[0094] In addition, the felt panels 4, 5, which are optional members, are made of a single material, felt, and partially include easily deformable regions 41, 51 that are more easily deformed than other regions, so that the overall shape can be changed as described above without providing any special hinge elements, etc. Therefore, the table can be used upright on the top surface f of the tables S2T, M2T in a variety of positions by utilizing the grooves m formed in the top surface f, without complicating the structure or increasing the number of parts.

[0095] It goes without saying that the tabletop to which the optional member is attached is not limited to the tabletop described above, but may be a personal table or other table.

[0096] Furthermore, the material is not limited to felt and can be something else, but felt can be elastically deformed to an appropriate degree in the thickness direction, making it suitable for fitting or pressing into a groove.

[0097] Furthermore, the configuration of the easy-to-deform area is not limited to the example shown in the figure, but as described above, if a large number of cut lines are arranged so that they do not interfere with each other, it will be easy to manufacture and will have a good appearance, and when no deformation is being performed, the easy-to-deform area will not be noticeable.

[0098] In addition, various modifications may be made without departing from the spirit of the present invention. [Explanation of symbols]

[0099] 1, 101…Tabletop 4...Panel (felt panel) 41...Easy deformation area 42…Cut line 44…Area (middle area) 45…Area (end area) 4a…One panel surface 4b…Other panel surface 4c…Thickness dimension 5...Panel (felt panel) 51...Easy deformation area 52…Cut line 54…Dividing line 55…Noren section 5a…One panel surface 5b…Other panel surface 5c…Thickness dimension 5e…Lower edge f…Top surface m…groove

Claims

1. A panel used on a ceiling, made of a single material and partially provided with a deformable region that is more deformable than other regions, the whole including the deformable region having a constant thickness dimension, a plurality of cut line series are provided in the deformable region in the same direction so as not to interfere with each other, each of the cut line series consists of a plurality of cut lines provided intermittently in the longitudinal direction in which the cut line series extends, and the cut lines of adjacent cut line series are positioned differently in the longitudinal direction so as not to be aligned, a panel.

2. A panel used on a ceiling, made of a single material and partially provided with a deformable region that is more deformable than other regions, the whole including the deformable region having a constant thickness dimension, a plurality of cut lines are provided in the deformable region in the same direction so as not to interfere with each other, the panel in which the cut line is formed so as to penetrate from one panel surface to the other panel surface.

3. The panel according to claim 1 or 2, made of a felt material having a constant thickness.

4. A panel having a plurality of adjacent regions in the left - right direction, wherein the deformable region is a strip - shaped region extending vertically having a substantially vertical cut line, The panel according to claim 1, 2 or 3, wherein the deformable region is arranged at an adjacent boundary portion of the regions.

5. A panel used on a ceiling, made of a single material and partially provided with a deformable region that is more deformable than other regions, the whole including the deformable region having a constant thickness dimension, a plurality of cut lines are provided in the deformable region in the same direction so as not to interfere with each other, a panel in which a plurality of dividing lines for dividing the material are provided at intervals in the left - right direction at the lower edge portion to form a curtain portion with an open lower edge between these dividing lines, wherein the deformable region is arranged with a deformable region having a substantially horizontal cut line in the whole or upper part of the curtain portion.

6. It is used on a ceiling surface having a groove, The panel according to claim 1, 2, 3, 4 or 5, configured to engage a part with the groove and stand on the ceiling surface.

Images