Tabletops and fixtures with tabletops

Abstract

In a tabletop with through-holes, the aim is to prevent items from falling into the through-holes while keeping manufacturing costs down. [Solution] The top plate 2 comprises a top plate body 10 having a long through hole 20 that penetrates in the vertical direction, and a fall prevention member 40 attached to the edge of the through hole 20 and having an upper piece 41 that protrudes above the upper surface of the top plate body 10. The edge of the through hole 20 has a pair of long edges 21 that extend parallel to each other and in a straight line along the longitudinal direction of the through hole 20. The fall prevention member 40 has a first fall prevention member 40A attached to one of the pair of long edges 21, and a second fall prevention member 40B attached to the other of the pair of long edges 21 and independent of the first fall prevention member 40A.

Description

Technical Field

[0001] The present invention relates to a top plate and accessories for a top plate.

Background Art

[0002] In workspaces such as offices and public facilities, there is known a top plate accessory having a wide work surface on which a user can perform work tasks. In such a top plate accessory, there may be a case where a through-hole penetrating in the vertical direction is provided in the top plate, and wiring is routed from the upper space of the top plate to the lower space of the top plate through the through-hole (see, for example, Patent Document 1).

[0003] When a through-hole is provided in the top plate, there is a risk that articles such as writing utensils on the top plate may fall into the through-hole. Therefore, a frame-shaped member is provided at the opening edge of the through-hole, and by protruding the frame-shaped member upward from the upper surface of the top plate, articles on the top plate can be caught by the frame-shaped member, and it is possible to prevent the articles from falling into the through-hole. Patent Document 1 discloses a configuration in which a square tube-shaped connection unit fixture is attached to an opening of a top plate, and a connection unit provided with a socket or the like is inserted inside the connection unit fixture. The connection unit fixture has a flange that is locked to the upper surface of the top plate. Even when a frame-shaped member such as this connection unit fixture is used alone, it is considered to function as a fall prevention member that can prevent articles on the top plate from falling into the through-hole as described above.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, since the frame-shaped fall prevention member is a specially designed part that fits the shape of the through-hole in the tabletop, it presents problems in terms of the effort required to design the fall prevention member and the resulting increase in manufacturing costs. Therefore, there is a challenge in preventing items from falling into the through-hole in a tabletop with a through-hole, while also reducing the manufacturing cost of the tabletop.

[0006] Therefore, the present invention provides a tabletop with through-holes that prevents items from falling into the through-holes while suppressing an increase in manufacturing costs. Furthermore, it provides a tabletop equipped with such a tabletop. [Means for solving the problem]

[0007] A top plate according to a first aspect of the present invention comprises a top plate body having a long through hole that penetrates in the vertical direction, and a fall prevention member having a protruding portion that protrudes above the upper surface of the top plate body through the through hole, wherein the edge of the through hole has a pair of long edges that extend parallel and linearly to each other along the longitudinal direction of the through hole, and the fall prevention member comprises a first fall prevention member attached to one of the pair of long edges, and a second fall prevention member attached to the other of the pair of long edges and independent of the first fall prevention member.

[0008] According to the first embodiment, since the elongated through-hole has a long edge extending along its longitudinal direction, articles on the top plate body are likely to fall into the through-hole by crossing the long edge. However, since the fall prevention member attached to the long edge has a protrusion, the article can be prevented from falling into the through-hole by the protrusion. Here, since the pair of long edges extend in a straight line, the first fall prevention member and the second fall prevention member can each be formed in a straight line. For this reason, the first fall prevention member and the second fall prevention member can each be made of a member with the same shape or the same cross-sectional shape. As a result, the first fall prevention member and the second fall prevention member can each be made of a member with the same shape or a member that differs only in length. Furthermore, the fall prevention member can be made to accommodate a variety of through-hole shapes. Therefore, the fall prevention member becomes inexpensive. As a result, it is possible to suppress the falling of articles into the through-hole while keeping manufacturing costs down.

[0009] A tabletop according to a second aspect of the present invention is a tabletop according to the first aspect, wherein the tabletop body has a first length along a first horizontal direction and a second length along a second horizontal direction perpendicular to the first direction, and the longitudinal direction of the through hole may be parallel to the first direction.

[0010] According to the second embodiment, the through-hole extends along the longitudinal direction in plan view of the top plate body. This makes it easier to form a long through-hole, and consequently, makes it easier for items on the top plate body to fall into the through-hole by crossing the long edge of the through-hole. Therefore, the effect of restricting items from falling into the through-hole by the protruding part can be effectively exerted.

[0011] In a third aspect of the present invention, the top plate according to the first or second aspect described above may have the longitudinal direction of the through hole aligned with the extending direction of the usable edge of the top plate body.

[0012] According to the third embodiment, the through-hole is more likely to be positioned in front of the user when using the edge of the through-hole. As a result, the item being used by the user is more likely to fall into the through-hole by crossing the long edge of the through-hole. Therefore, the effect of preventing the item from falling into the through-hole by the protruding part can be effectively achieved.

[0013] A top plate according to a fourth aspect of the present invention may have, in any of the first to third aspects described above, an upper piece along the upper surface of the top plate body, a hanging piece hanging down from the upper piece along the long edge, and a lower piece extending from the hanging piece along the lower surface of the top plate body.

[0014] According to the fourth embodiment, the long edge of the through hole can be suitably protected by covering it with a fall prevention member. Furthermore, since the fall prevention member is formed in a U-shape in cross-section, its strength is improved compared to a fall prevention member formed in an L-shape in cross-section. This makes it less likely for the fall prevention member to break when an object comes into contact with a protruding part.

[0015] A fifth aspect of the present invention is a top plate according to any of the first to third aspects of the present invention, wherein the pair of long edges have a pair of inclined portions that move apart from each other as they extend downward, and the first fall prevention member and the second fall prevention member may be located between the pair of inclined portions and move apart from each other as they extend downward.

[0016] According to the fifth embodiment, the distance between the first fall prevention member and the second fall prevention member widens as it approaches the lower opening of the through hole. As a result, the wiring inserted through the through hole can be routed without being bent with a large curvature at a position between the through hole and the space below the top plate body. Therefore, damage to the wiring inserted through the through hole can be suppressed. In addition, compared to a configuration in which the first fall prevention member and the second fall prevention member extend vertically at a constant distance between a pair of long edges, it becomes easier to access the inside of the through hole from the space below the top plate. Therefore, the workability when fixing the fall prevention member to the long edge can be improved.

[0017] A tabletop according to a sixth aspect of the present invention is a tabletop according to any of the first to fifth aspects described above, wherein the through hole has a connecting edge that connects the ends of the pair of long edges, and the size of the connecting edge in the longitudinal direction and in the short direction of the through hole may be smaller than the size of each of the pair of long edges in the longitudinal direction.

[0018] According to the sixth embodiment, a long edge is provided over most of the through hole. As a result, items on the top plate body are more likely to fall into the through hole by crossing the long edge of the through hole. Therefore, the effect of preventing items from falling into the through hole by the protrusion can be effectively exerted.

[0019] In the seventh aspect of the present invention, the top plate according to any of the first to sixth aspects described above, the size of the connecting edge in the longitudinal direction and the transverse direction may be larger than the distance between the pair of longitudinal edges.

[0020] According to the seventh embodiment, devices such as power strips that are too large to pass between the pair of long edges can be passed through the inside of the connecting edge. This allows the distance between the pair of long edges to be narrowed to a degree that allows relatively thin devices such as wiring to pass through, thereby securing a larger surface area on the top of the tabletop body and creating a tabletop with a wide work surface.

[0021] A fixture with a tabletop according to the eighth aspect of the present invention comprises a tabletop according to any of the first to seventh aspects described above, and a support structure for supporting the tabletop.

[0022] According to the eighth aspect, it is possible to suppress an increase in the manufacturing cost of a fixture with a top plate in which the falling of articles into the through-hole is prevented. [Effects of the Invention]

[0023] According to the present invention, in a tabletop with through holes formed therein, it is possible to suppress the falling of items into the through holes while keeping manufacturing costs down.

Brief Description of the Drawings

[0024] [Figure 1] It is a perspective view of the furniture with a top plate according to the first embodiment. [Figure 2] It is a plan view showing an enlarged view of the periphery of the through hole in the top plate according to the first embodiment. [Figure 3] It is a cross-sectional view taken along line III-III of FIG. 2. [Figure 4] It is a perspective view showing an enlarged part of the furniture with a top plate according to a modification of the first embodiment. [Figure 5] It is a cross-sectional view of the top plate according to the second embodiment, which is a view corresponding to FIG. 3. [Figure 6] It is a plan view of the furniture with a top plate according to the third embodiment.

Modes for Carrying Out the Invention

[0025] Hereinafter, embodiments of the present invention will be described based on the drawings. In the following description, the same reference numerals are given to configurations having the same or similar functions. And the overlapping descriptions of those configurations may be omitted. Also, in the following description, the normal direction of the floor surface on which the furniture with a top plate is installed is defined as the vertical direction, and the direction perpendicular to the vertical direction is defined as the horizontal direction. Also, two directions perpendicular to each other in the horizontal direction are defined as the front-rear direction and the left-right direction. Also, for the orthogonal coordinate system shown in each figure, the X direction is defined as the left-right direction, the Y direction is defined as the front-rear direction, and the Z direction is defined as the vertical direction.

[0026] [First Embodiment] FIG. 1 is a perspective view of the furniture with a top plate according to the first embodiment. As shown in FIG. 1, the furniture with a top plate 1 is a table or a desk installed in an office, a public facility, a school, etc. The furniture with a top plate 1 includes a top plate 2 having a work surface facing upward, and a support structure 3 disposed on the floor surface and supporting the top plate 2 from below. The support structure 3 includes a plurality (three in the illustrated example) of legs. Note that the configuration of the support structure 3 is not particularly limited, and for example, the legs may be provided with casters capable of traveling on the floor surface.

[0027] The top plate 2 comprises a top plate body 10 and a fall prevention member 40 attached to the top plate body 10. The tabletop body 10 is formed in a plate shape that follows the horizontal direction. The tabletop body 10 is connected to the upper part of the support structure 3, for example, by bolts. The tabletop body 10 has a first length along the left-right direction and a second length along the front-back direction. The second length is shorter than the first length. That is, the tabletop body 10 has a plan view shape with the left-right direction as the length direction and the front-back direction as the width direction. Hereinafter, the length direction of the tabletop body 10 will be referred to as the tabletop length direction, and the width direction of the tabletop body 10 will be referred to as the tabletop width direction.

[0028] The outer edge of the tabletop body 10 comprises a pair of long sides 11 and a pair of short sides 12. Each pair of long sides 11 is an example of a "usable edge" that has dimensions that allow multiple users to sit side-by-side in a plan view. The pair of long sides 11 are spaced apart from each other in the width direction of the tabletop in a plan view. The pair of long sides 11 extend linearly in the length direction of the tabletop, parallel to each other in a plan view. The distance between the pair of long sides 11 in the width direction of the tabletop corresponds to a second length. In the illustrated example, the ends of the pair of long sides 11 are offset from each other in the length direction of the tabletop in a plan view. Each long side 11 straddles the midpoint of its length in the length direction of the tabletop body 10.

[0029] The pair of short sides 12 are spaced apart from each other in the length direction of the tabletop when viewed from above. Each short side 12 connects the left and right ends of the pair of long sides 11 on the same side. Each short side 12 may be usable by at least one user. In the illustrated example, since the pair of long sides 11 are offset from each other in the length direction of the tabletop, both ends of each short side 12 are also offset from each other in the length direction of the tabletop. Each short side 12 is formed by a straight section and a curved section. However, the shape of the outer edge of the tabletop body 10 is not particularly limited, and it is sufficient that it has usable edges on at least both sides in the width direction of the tabletop that can be used by multiple users side by side. Also, the tabletop body 10 may be formed substantially as a single flat plate by integrating multiple plate materials horizontally without gaps.

[0030] The tabletop body 10 has a long through-hole 20 that penetrates vertically. In a plan view, the through-hole 20 is completely surrounded by the upper surface of the tabletop body 10. In other words, the through-hole 20 is separated from the plan view outline of the tabletop body 10. The through-hole 20 extends along the length direction of the tabletop. That is, the longitudinal direction of the through-hole 20 is parallel to the length direction of the tabletop. Furthermore, the longitudinal direction of the through-hole 20 is parallel to the extending direction of the long side portion 11 of the tabletop body 10. The through-hole 20 is formed between a pair of long side portions 11 of the tabletop body 10. The area of ​​the upper surface of the tabletop body 10 between the through-hole 20 and each long side portion 11 is a usable surface 13 that can be used by a user positioned along the long side portion 11. The usable surface 13 is large enough for a user to work on in the width direction of the tabletop.

[0031] Figure 2 is a plan view showing an enlarged view of the area around the through-hole in the top plate according to the first embodiment. Figure 3 is a cross-sectional view taken along line III-III in Figure 2. As shown in Figures 2 and 3, the edge of the through-hole 20 comprises a pair of elongated edges 21 that extend parallel and linearly along the longitudinal direction of the through-hole 20, and a pair of connecting edges 22 that connect the ends of the elongated edges 21 on the same side. The edge of the through-hole 20 is the wall surface that defines the through-hole 20 and connects the opening edges of the through-hole 20 on the upper and lower surfaces of the top plate body 10, respectively. The entire edge of the through-hole 20 is parallel in the vertical direction. The through-hole 20 is formed symmetrically from front to back.

[0032] Each long edge 21 extends uniformly along its entire length. A pair of long edges 21 have the same length as each other. A pair of long edges 21 face each other in the width direction of the tabletop. The ends of a pair of long edges 21 on the same side are at the same position in the length direction of the tabletop. The distance between a pair of long edges 21 is less than the length of each long edge 21. At least a portion of each long edge 21 overlaps with the long side 11 of the tabletop body 10 in the width direction of the tabletop.

[0033] A pair of connecting edges 22 are provided at both ends of the through hole 20. The pair of connecting edges 22 extend outward in the width direction of the top plate compared to the pair of long edges 21. Each connecting edge 22 comprises a pair of inner portions 22a extending outward in the width direction of the top plate from the ends of each long edge 21, and an outer portion 22b connecting the pair of inner portions 22a on the opposite side of the pair of long edges 21. The pair of inner portions 22a extend away from each other from the ends of the long edges 21. In this embodiment, each inner portion 22a extends outward in the width direction of the top plate and outward in the length direction of the top plate (away from the long edges 21) from the ends of the long edges 21. The outer portion 22b straddles the width direction of the top plate at an intermediate position in the width direction of the top plate at the end of the through hole 20. The outer portion 22b extends from an intermediate position in the width direction of the top plate at the end of the through hole 20 outward in the width direction of the top plate and inward in the length direction of the top plate, and connects to a pair of inner portions 22a. In this embodiment, the end of the through hole 20 surrounded by the connecting edge 22 has a rectangular plan view shape and protrudes outward in the width direction of the top plate beyond the pair of long edges 21. The size of the connecting edge 22 in the length direction and width direction of the top plate is greater than the distance between the pair of long edges 21. The size of the connecting edge 22 in the length direction and width direction of the top plate is smaller than the longitudinal size of each long edge 21.

[0034] The fall prevention member 40 is attached to the edge of the through hole 20. The fall prevention member 40 comprises a first fall prevention member 40A attached to one long edge 21 and a second fall prevention member 40B attached to the other long edge 21. In this embodiment, the fall prevention member 40 consists only of the first fall prevention member 40A and the second fall prevention member 40B. The first fall prevention member 40A and the second fall prevention member 40B are provided independently of each other. The first fall prevention member 40A and the second fall prevention member 40B are each a single continuous member extending along their entire length. The first fall prevention member 40A and the second fall prevention member 40B are arranged with a gap between them in the width direction of the top plate so as not to obstruct communication between the upper and lower spaces of the top plate 2 through the through hole 20. Hereinafter, when the first fall prevention member 40A and the second fall prevention member 40B are not distinguished, they will simply be referred to as the fall prevention member 40.

[0035] The fall prevention member 40 is attached so as to cover the long edge 21 along its entire length. The fall prevention member 40 is made of metal, for example. In this case, the fall prevention member 40 is formed by sheet metal processing or aluminum extrusion. The fall prevention member 40 may also be made of synthetic resin. The fall prevention member 40 extends uniformly along its entire length.

[0036] The fall prevention member 40 is formed in a U-shape that is open outward in the width direction of the top plate when viewed from its extending direction (length direction of the top plate). The fall prevention member 40 has an upper piece 41, a hanging piece 42, and a lower piece 43. The upper piece 41 is along the upper surface of the top plate body 10. The upper piece 41 is flat. The upper piece 41 protrudes above the upper surface of the top plate body 10 through the through hole 20. The upper piece 41 covers the opening periphery of the through hole 20 on the upper surface of the top plate body 10. For example, the width of the upper piece 41 is smaller than the distance between the pair of long edges 21. The hanging piece 42 hangs down from the upper piece 41 along the long edge 21. The hanging piece 42 is flat. The connection between the upper piece 41 and the hanging piece 42 covers the opening edge of the through hole 20 on the upper surface of the top plate body 10. The hanging piece 42 covers the entire long edge 21. The lower piece 43 extends from the lower edge of the hanging piece 42 along the underside of the top plate body 10. The lower piece 43 is flat. The lower piece 43 covers the opening periphery of the through hole 20 on the underside of the top plate body 10. For example, the width of the lower piece 43 is greater than the width of the upper piece 41.

[0037] The fall prevention member 40 is fixed to the top plate body 10 by screws 49. The screws 49 fasten the lower piece 43 to the underside of the top plate body 10. The fall prevention member 40 may also be fixed to the top plate body 10 by staples. However, it is desirable that the fixing members such as screws 49 and staples be positioned in a location that is not visible from above the top plate 2.

[0038] As described above, the top plate 2 of this embodiment comprises a top plate body 10 having a long through hole 20 that penetrates in the vertical direction, and a fall prevention member 40 having an upper piece 41 that protrudes above the upper surface of the top plate body 10 through the through hole 20. The edge of the through hole 20 has a pair of long edges 21 that extend parallel to each other and in a straight line along the longitudinal direction of the through hole 20. The fall prevention member 40 has a first fall prevention member 40A attached to one of the pair of long edges 21, and a second fall prevention member 40B attached to the other of the pair of long edges 21 and independent of the first fall prevention member 40A.

[0039] With this configuration, since the elongated through-hole 20 has a long edge 21 extending along its longitudinal direction, articles on the top plate body 10 are likely to fall over the long edge 21 into the through-hole 20. However, since the fall prevention member 40 attached to the long edge 21 has an upper piece 41, the upper piece 41 of the fall prevention member 40 can prevent articles from falling into the through-hole 20. Here, since the pair of long edges 21 extend in a straight line, the first fall prevention member 40A and the second fall prevention member 40B can each be formed in a straight line. For this reason, the first fall prevention member 40A and the second fall prevention member 40B can each be made of a member with the same shape or the same cross-sectional shape. As a result, the first fall prevention member 40A and the second fall prevention member 40B can each be made of a member with the same shape or a member that differs only in length. Furthermore, the fall prevention member 40 can be made to accommodate a variety of through-hole shapes. Therefore, the fall prevention member 40 is inexpensive. As a result, it is possible to suppress the falling of items into the through-hole 20 while keeping manufacturing costs down.

[0040] The tabletop body 10 has a first length along the left-right direction and a second length along the front-back direction that is shorter than the first length. The longitudinal direction of the through-hole 20 is parallel to the left-right direction. With this configuration, the through-hole 20 extends along the length direction of the tabletop. Therefore, it is easy to form the through-hole 20 to be long, and consequently, it is easier for an item on the tabletop body 10 to fall into the through-hole 20 by crossing the long edge 21 of the through-hole 20. Thus, the effect of preventing an item from falling into the through-hole 20 by the upper piece 41 of the fall prevention member 40 can be effectively exerted.

[0041] The longitudinal direction of the through-hole 20 is aligned with the extending direction of the long side portion 11 of the tabletop body 10. With this configuration, the through-hole 20 is more likely to be positioned in front of the user when using the long side portion 11 of the tabletop body 10. As a result, items used by the user are more likely to fall into the through-hole 20 by crossing the long edge 21 of the through-hole 20. Therefore, the effect of preventing items from falling into the through-hole 20 by the upper piece 41 of the fall prevention member 40 can be effectively demonstrated.

[0042] The fall prevention member 40 has an upper piece 41 that follows the upper surface of the top plate body 10, a hanging piece 42 that hangs down from the upper piece 41 along the long edge 21, and a lower piece 43 that extends from the hanging piece 42 along the lower surface of the top plate body 10. With this configuration, the long edge 21 of the through hole 20 can be covered and adequately protected by the fall prevention member 40. Furthermore, since the fall prevention member 40 is formed in a U-shape in cross-section, its strength is improved compared to a fall prevention member 40 formed in an L-shape in cross-section. This makes it less likely for the fall prevention member 40 to break when an object comes into contact with the upper piece 41 of the fall prevention member 40.

[0043] The through-hole 20 has a connecting edge 22 that connects the ends of a pair of long edges 21. The size of the connecting edge 22 in the longitudinal and transverse directions of the through-hole 20 is smaller than the size of each of the pair of long edges 21 in the longitudinal direction. With this configuration, the long edges 21 are provided over most of the through-hole 20. As a result, items on the top plate body 10 are more likely to fall into the through-hole 20 by crossing the long edges 21 of the through-hole 20. Therefore, the effect of preventing items from falling into the through-hole 20 by the upper piece 41 of the fall prevention member 40 can be effectively exerted.

[0044] The size of the connecting edge 22 in the longitudinal and transverse directions of the through hole 20 is larger than the distance between the pair of long edges 21. With this configuration, devices such as power strips that are too large to pass between the pair of long edges 21 can be passed inside the connecting edge 22. As a result, the distance between the pair of long edges 21 can be narrowed to a degree that allows relatively thin devices such as wiring to pass through, thereby securing a large surface area on the top of the tabletop body 10 and creating a tabletop 2 with a wide work surface.

[0045] The top plate 2 may also be provided with a cover 80 that closes the end of the through hole 20. An example of the cover 80 is shown in Figure 4. As shown in Figure 4, the cover 80 has a flat cover body 81 that overlaps the connecting edge 22 of the through hole 20 along its entire length. For example, the cover body 81 has the same thickness as the upper piece 41 of the fall prevention member 40. The cover body 81 may be substantially adjacent to the end of the upper piece 41 of the fall prevention member 40 with no gap. The cover 80 may also have an engaging portion that extends downward from the cover body 81 and engages with the edge of the through hole 20.

[0046] [Second Embodiment] Next, a second embodiment will be described with reference to Figure 5. In the second embodiment, the shape of the long edge of the through hole and the fall prevention member differ from that of the first embodiment. Other than what is described below, the configuration is the same as that of the first embodiment.

[0047] Figure 5 is a cross-sectional view of the top plate according to the second embodiment, and corresponds to Figure 3. As shown in Figure 5, the pair of elongated edges 31 of the through-hole 30 are formed such that the distance between their lower ends is greater than the distance between their upper ends. Each elongated edge 31 comprises an upper half 32 extending vertically and a lower half 33 extending outward in the width direction of the top plate as it extends downward. In other words, a pair of elongated edges 31 comprises a pair of upper halves 32 extending vertically at a constant interval and a pair of lower halves 33 that move further apart as they extend downward. The upper halves 32 extend downward from the opening edge of the through-hole 30 on the upper surface of the top plate body 10. The lower halves 33 extend upward and inward in the width direction of the top plate as it extends from the opening edge of the through-hole 30 on the lower surface of the top plate body 10. In the illustrated example, each elongated edge 31 has a stepped portion 34 facing downward, provided between the lower end edge of the upper half 32 and the upper end edge of the lower half 33. However, the lower edge of the upper half 32 and the upper edge of the lower half 33 may be directly connected to each other.

[0048] The fall prevention member 50, as in the first embodiment, comprises a first fall prevention member 50A attached to one long edge 31 and a second fall prevention member 50B attached to the other long edge 31. The fall prevention member 50 comprises an overlapping portion 51 extending along the long edge 31 and a projection 52 extending upward from the upper end of the overlapping portion 51. The overlapping portion 51 is positioned to overlap the long edge 31. The overlapping portion 51 extends along the entire length of the long edge 31 from the lower end to the upper end. That is, the overlapping portion 51 extends along the lower half 33, the stepped portion 34, and the upper half 32 of the long edge 31. Because the overlapping portion 51 extends along the lower half 33 of the long edge 31, the first fall prevention member 50A and the second fall prevention member 50B are separated from each other as they extend downward between the lower half 33 of the pair of long edges 31. The overlapping portion 51 faces the lower half 33 and the stepped portion 34 of the long edge 31 in the vertical direction, and its upward movement toward the top plate body 10 is restricted.

[0049] The protruding portion 52 extends upward from the upper surface of the top plate body 10 through the through hole 30. Furthermore, the protruding portion 52 extends outward in the width direction of the top plate beyond the upper end of the long edge 31 and engages from above with the opening periphery of the through hole 30 on the upper surface of the top plate body 10. The protruding portion 52 has a guide surface 53 that faces away from the through hole 30 in a plan view. The guide surface 53 extends horizontally away from the through hole 30 (outward in the width direction of the top plate) as it extends downward from the upper edge of the protruding portion 52.

[0050] The fall prevention member 50 is fixed to the top plate body 10 by staples 59. The staples 59 fasten the overlapping portion 51 of the fall prevention member 50 to the lower half 33 of the long edge 31 of the top plate body 10. The fall prevention member 50 may also be fixed to the top plate body 10 by screws. However, it is desirable that the fixing members such as staples 59 and screws be positioned in a location that is not visible from above the top plate 2.

[0051] This embodiment provides the same effects as the first embodiment. In addition, this embodiment provides the following effects. The pair of long edges 31 of the through hole 30 have a pair of lower halves 33 that move apart from each other as they extend downward. The first fall prevention member 50A and the second fall prevention member 50B are separated from each other between the pair of lower halves 33 as they extend downward. With this configuration, the distance between the first fall prevention member 50A and the second fall prevention member 50B widens as they extend towards the lower opening of the through hole 30. Therefore, the wiring inserted through the through hole 30 can be routed without being bent with a large curvature at a position between the through hole 30 and the space below the top plate body 10. Thus, damage to the wiring inserted through the through hole 30 can be suppressed. Also, compared to a configuration in which the first fall prevention member and the second fall prevention member extend vertically at a constant distance between the pair of long edges, it becomes easier to access the inside of the through hole 30 from the space below the top plate 2. Therefore, it is possible to improve the workability when fixing the fall prevention member 50 to the long edge 31.

[0052] [Third Embodiment] Next, a third embodiment will be described with reference to Figure 6. In the third embodiment, the top plate body and the plan view shape of the through-holes differ from those of the first embodiment. Other than what is described below, the configuration is the same as that of the first embodiment.

[0053] Figure 6 is a plan view of a fixture with a tabletop according to the third embodiment. As shown in Figure 6, the tabletop body 110 is formed in an L-shape in plan view. More specifically, the tabletop body 110 has a rectangular first part 110A and a second part 110B in plan view, and each of these parts has a shape in which one end of each part overlaps so that the longitudinal directions intersect (orthogonal in the illustrated example) in plan view. The outer edge of the first part 110A has a pair of long sides 111A and a pair of short sides 112A. At least one of the pair of long sides 111A is an example of a "usable edge" having dimensions that allow multiple users to use it side by side. The outer edge of the second part 110B has a pair of long sides 111B and a pair of short sides 112B. At least one of the pair of long sides 111B is an example of a "usable edge" having dimensions that allow multiple users to use it side by side.

[0054] The top plate body 110 has a through hole 120 that extends vertically through it. The through hole 120 extends from a first portion 110A to a second portion 110B of the top plate body 110. The through hole 120 comprises a first through hole 120A formed in the first portion 110A of the top plate body 110 and a second through hole 120B formed in the second portion 110B of the top plate body 110. In this embodiment, the ends of the first through hole 120A and the second through hole 120B are connected, causing the through hole 120 to extend in an L-shape in plan view, but the first through hole 120A and the second through hole 120B may be provided independently of each other.

[0055] The first through-hole 120A extends along the longitudinal direction of the first portion 110A of the top plate body 110. In other words, the longitudinal direction of the first through-hole 120A is parallel to the longitudinal direction of the first portion 110A of the top plate body 110. Furthermore, the longitudinal direction of the first through-hole 120A is parallel to the extending direction of the long side portion 111A of the first portion 110A of the top plate body 110. The first through-hole 120A is formed between a pair of long side portions 111A of the first portion 110A of the top plate body 110.

[0056] The edge of the first through-hole 120A is provided with a pair of elongated edges 121A that extend parallel and linearly to each other along the longitudinal direction of the first through-hole 120A. The pair of elongated edges 121A face each other in the width direction of the first portion 110A of the tabletop body 110. The ends of the pair of elongated edges 121A on the same side are in the same position in the length direction of the first portion 110A of the tabletop body 110. The distance between the pair of elongated edges 121A is less than the length of each elongated edge 121A. At least a portion of each elongated edge 121A overlaps with the long side portion 111A of the first portion 110A of the tabletop body 110 in the width direction of the first portion 110A of the tabletop body 110.

[0057] The second through-hole 120B extends along the longitudinal direction of the second portion 110B of the top plate body 110. In other words, the longitudinal direction of the second through-hole 120B is parallel to the longitudinal direction of the second portion 110B of the top plate body 110. Furthermore, the longitudinal direction of the second through-hole 120B is parallel to the extending direction of the long side portion 111B of the second portion 110B of the top plate body 110. The second through-hole 120B is formed between a pair of long side portions 111B of the second portion 110B of the top plate body 110.

[0058] The edge of the second through-hole 120B is provided with a pair of elongated edges 121B that extend parallel and linearly to each other along the longitudinal direction of the second through-hole 120B. The pair of elongated edges 121B face each other in the width direction of the second portion 110B of the tabletop body 110. The ends of the pair of elongated edges 121B on the same side are in the same position in the length direction of the second portion 110B of the tabletop body 110. The distance between the pair of elongated edges 121B is less than the length of each elongated edge 121B. At least a portion of each elongated edge 121B overlaps with the elongated side 111B of the second portion 110B of the tabletop body 110 in the width direction of the second portion 110B of the tabletop body 110.

[0059] A fall prevention member 40 is attached to the edge of the through hole 120. The fall prevention member 40 is independently attached to each of the pair of long edges 121A of the first through hole 120A, and also independently attached to each of the pair of long edges 121B of the second through hole 120B.

[0060] In this embodiment, multiple elongated through holes 120A and 120B are provided in accordance with the planar shape of the top plate body 110. However, since the fall prevention members 40 are independently attached to the long edges 121A and 121B of each through hole 120A and 120B, the same effects as in the first embodiment are achieved.

[0061] It should be noted that the present invention is not limited to the embodiments described above with reference to the drawings, and various modifications are conceivable within its technical scope. For example, the plan view shape of the tabletop body is not limited to the above embodiment. For example, the tabletop body may be formed in a circular or elliptical shape in plan view, or it may have a plan view shape that is a combination of multiple rectangles.

[0062] In the above embodiment, the fall prevention member is attached to the entire length of the long edge of the through hole, but the configuration is not limited to this. That is, the fall prevention member may be attached to only a part of the long edge of the through hole. Also, the fall prevention member does not have to be continuous along the entire length of the long edge of the through hole, and the fall prevention member may be divided in the direction of its extension. Even in this case, each divided part of the fall prevention member can be a member of the same shape or a member that differs only in length, so the above effects can be achieved.

[0063] In the above embodiment, a fall prevention member is not attached to the connecting edge of the through hole, but a fall prevention member may be attached to the connecting edge. In this case, the portion of the fall prevention member attached to the long edge should be independent of the portion attached to the connecting edge.

[0064] In the above embodiment, the end of the through-hole has a plan view shape that bulges in the short direction of the through-hole, but the through-hole only needs to be long; for example, the through-hole may extend with a constant width along its entire length.

[0065] Furthermore, without departing from the spirit of the present invention, the components in the above-described embodiments may be replaced with well-known components as appropriate, and the above embodiments and modifications may be combined as appropriate. [Explanation of symbols]

[0066] 1…Fixture with top plate 2…Top plate 3…Support structure 10,110…Top plate body 20,30,120…Through hole 21,31,121A,121B…Long edge 22…Connecting edge 33…Lower half (inclined part) 40,50…Fall prevention member 40A,50A…First fall prevention member 40B,50B…Second fall prevention member 41…Upper piece 42…Dangling piece 43…Lower piece 52…Protruding part

Claims

1. The top panel body has a long through-hole formed that penetrates vertically, A fall prevention member having a protruding portion that extends upward from the upper surface of the top plate body through the aforementioned through hole, Equipped with, The edge of the through hole has a pair of elongated edges that extend parallel to each other and in a straight line along the longitudinal direction of the through hole. The aforementioned fall prevention member is A first fall prevention member attached to one of the pair of long edges, A second fall prevention member is attached to the other of the pair of long edges and is independent of the first fall prevention member, Having, Tabletop.

2. The aforementioned tabletop body is A first length along the first horizontal direction, A second horizontal direction perpendicular to the first direction, with a second length shorter than the first length, It has, The longitudinal direction of the through hole is parallel to the first direction. The tabletop according to claim 1.

3. The longitudinal direction of the through hole is along the extending direction of the usable edge of the top plate body. The tabletop according to claim 1.

4. The aforementioned fall prevention member is The upper piece along the upper surface of the top plate body, A hanging piece extending from the upper piece along the long edge, A lower piece extending from the aforementioned hanging piece along the lower surface of the top plate body, Having, The tabletop according to any one of claims 1 to 3.

5. The pair of elongated edges have a pair of inclined portions that move away from each other as they extend downwards. The first fall prevention member and the second fall prevention member are positioned between the pair of inclined portions, and move away from each other as they extend downward. The tabletop according to any one of claims 1 to 3.

6. The through hole has a connecting edge that connects the ends of the pair of long edges, The size of the connecting edge in the longitudinal direction and the short direction of the through hole is smaller than the size of each of the pair of long edges in the longitudinal direction. The tabletop according to any one of claims 1 to 3.

7. The size of the connecting edge in the longitudinal direction and the transverse direction, respectively, is greater than the distance between the pair of longitudinal edges. The tabletop according to claim 6.

8. A tabletop according to any one of claims 1 to 3, A support structure that supports the aforementioned top plate, A display unit with a tabletop equipped with [a specific feature / feature].

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