JP6747892B2 - Furniture with top plate - Google Patents

Description

The present invention relates to furniture with a ceiling plate that is preferably used in offices and the like.

2. Description of the Related Art Conventionally, furniture with a top plate is known in which the height of the top surface can be freely changed by elevating the top plate. For example, Patent Document 1 describes a furniture with a top plate in which the left and right leg columns are synchronously moved up and down to adjust the height of the top plate surface.

By the way, many furniture with a top plate is provided with a wiring accommodating portion for accommodating a wiring for connecting to a personal computer or the like used on the top plate. Then, the wiring extending from the floor is guided to the wiring housing portion.

JP, 2016-86914, A

In the furniture with a ceiling plate capable of elevating and lowering such a ceiling plate, the wiring extending from the floor is usually adjusted to a length corresponding to when the height of the ceiling plate is positioned at the upper end of the lifting operation range. By adjusting the wiring in this way, the wiring is not unnecessarily pulled by the lifting operation of the top plate, and the wiring does not hang on the floor surface below the top plate.

However, when the wiring is arranged as described above, when the top plate is lowered, the lower end side of the wiring hangs down on the floor surface, which easily causes a problem that it interferes with the user's foot in the lower limb space. ..

An object of the present invention is to solve the above problems, and when using a furniture with a ceiling plate capable of moving the ceiling plate up and down, it is difficult for the wiring to interfere with the user's foot regardless of the position where the ceiling plate is lifted. It is intended to be

The present invention takes the following means in order to achieve such an object.

That is, the furniture with a ceiling plate according to the present invention is a ceiling plate, and end legs for supporting the ceiling plate so that the ceiling plate can be lifted and lowered from below, which are arranged at one end side and the other end side in the longitudinal direction of the ceiling plate, A plurality of intermediate legs for supporting the top plate so that the top plate can be moved up and down together with the end legs, which are arranged between the end legs arranged on one end side and the other end side in the longitudinal direction of the top plate. , A wiring duct extending between the plurality of intermediate legs on the lower surface side of the top plate and a plurality of wirings accommodated in the wiring duct can be aggregated in a flexible state. A wiring aggregation device that allows the end portion of the wiring to hang downward from the wiring duct to the floor surface with a wiring extra length corresponding to the movable range related to the lifting operation of the top plate, and a wiring aggregation device. And a guide device for guiding the wiring collecting device so as to hang down along a guide space between two intermediate legs arranged in the short dimension direction of the top plate .

With such a configuration, it is possible to effectively avoid the problem that the wiring guided from the floor surface to the top plate unnecessarily hangs on the floor surface below the top plate and interferes with the user's foot. be able to. That is, according to the present invention, it is possible to provide a furniture with a ceiling plate that makes it difficult for the wiring to interfere with the user's foot regardless of the position where the ceiling plate is lifted when using the furniture with a ceiling plate that can be raised and lowered. Is possible.

In order to make the wiring hanging from the lower part of the top plate less noticeable from the outside, it is desirable that the guide device has a partition wall that partitions the guide space from the outside between the intermediate legs.

In order to prevent the guide device from interfering with the operation of the legs when raising and lowering the top plate, the intermediate legs should be structured so that the upper part can be extended and extended in a telescopic manner. It is desirable to have a shape that covers the lower part of the leg, which is the non-moving part, from the outside.

Then, in order to make the wirings aggregated in the wiring aggregation device inconspicuous from the outside at any place, the wiring ducts are connected to the end legs and the intermediate legs for elevating the top plate. It suffices to accommodate the wiring for lifting the top plate.

As a concrete configuration of arranging the wiring for raising and lowering the top plate so as not to be conspicuous from the outside, a wiring duct is attached to the lower surface side of the top plate so as to intersect with a part of the beam material interposed between the legs. As an example, a configuration in which substantially all of the ceiling plate lifting wiring extending from the wiring duct is arranged inside the beam material can be given.

Then, as a specific configuration for accommodating the wiring inside the beam member, the beam member is a plane having a first beam member intersecting the wiring duct and a second beam member arranged orthogonal to the first beam member. An example is a configuration in which a visual lattice shape is formed and a communication opening for communicating the wiring with the first beam material and the second beam material is provided.

INDUSTRIAL APPLICABILITY Since the present invention has the above-described configuration, when using the furniture with a top plate capable of moving the top plate up and down, the wiring is less likely to interfere with the user's foot regardless of the position where the top plate is lifted. Furniture can be provided.

The external view which concerns on one Embodiment of this invention. The front view which concerns on the same embodiment. The rear view. The same side view. The perspective view seen from the bottom face side concerning the embodiment. FIG. 3 is a configuration explanatory view according to the same embodiment. The center side sectional view which concerns on the same embodiment. Operation|movement explanatory drawing which concerns on the same embodiment. Operation|movement explanatory drawing which concerns on the same embodiment. Same as above. Same as above.

An embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 1, the furniture 1 with a top according to the present embodiment serves as an end leg 2 and an intermediate leg 3 standing upright from the floor, and a role as a top support attached to the upper ends of the intermediate legs 3. The main components are a beam member 4 that plays a role, a wiring duct 5 attached to the beam member 4, and a top plate 6 that is fixed and supported on the upper side of the beam member 4. Further, the end leg 2 and the intermediate leg 3 are configured to be extendable/contractible so that the top plate 6 moves up and down when operated by the user via the operation unit 9. In the present embodiment, wirings to be described later used for the furniture 1 with a top are omitted from FIGS. 1 to 7 for convenience of illustration and description, and are specifically illustrated in FIGS. 9 to 11. And

In addition, the furniture 1 with a top plate is provided near the edge portion on the bottom surface side of the top plate 6 and the first outlet 71 that can be used from the top surface side of the top plate 6 so that the user can suitably use various electric appliances. And a second outlet 72 provided. Then, in addition to the first outlet 71 and the second outlet 72, each wiring provided in the operation unit 9 described above is guided to the floor surface in a state of being gathered along the beam member 4, the wiring duct 5, and the intermediate leg 3. Has been done.

Here, the furniture 1 with a top plate according to the present embodiment includes a top plate 6, end legs 2 arranged at corners of the top plate 6 for supporting the top plate 6 so that the top plate 6 can be lifted and lowered from below, and the top plate. A plurality of intermediate portions in the longitudinal direction of 6 are arranged at positions retracted from the edge of the top plate 6, and together with the end legs 2, an intermediate leg 3 for supporting the top plate 6 so as to be able to move up and down from below, The wiring duct 5 extending between the plurality of intermediate legs 3 on the lower surface side of the plate 6 and the plurality of wirings accommodated in the wiring duct 5 can be integrated in a flexible state. From the wiring duct 5 to the wiring aggregation device 8 that can hang the end portion of the wiring downward from the wiring duct 5 to the floor surface with a wiring extra length corresponding to the movable range related to the lifting operation of the top plate 6. The guide device 3C is provided for guiding the suspended wiring gathering device 8 so as to suspend it along the guide space X between the plurality of intermediate legs 3.

Hereinafter, the configuration of each component of the furniture 1 with a top will be described.

As shown in FIGS. 1 to 6, the end legs 2 are arranged at the four corners of the top plate 6 to support the top plate 6 from below, and in the present embodiment, can be telescopically expanded and contracted electrically. With such a structure, the top plate 6 can be supported so as to be able to move up and down. The two end legs 2 on the one end side and the other end side in the longitudinal direction of the end leg 2 are connected to the end base 2B at the lower end, so that the two end legs 2 and The base 2B constitutes an end leg unit 2U.

As shown in FIGS. 1 to 6, a plurality of intermediate legs 3 are arranged at a position retracted from the edge of the top plate 6 in an intermediate portion in the longitudinal direction of the top plate 6. The intermediate legs 3 are respectively arranged at the intermediate portions in the longitudinal direction of the top plate 6 and support the top plate 6 from below. Like the end legs 2, the intermediate legs 3 can be telescopically extended and shortened, that is, extendable and contractible. The top plate 6 can be supported so as to be vertically movable. The intermediate leg 3 is configured such that the two end legs 2 arranged in the short dimension direction of the top plate 6 are connected by the intermediate base 3B and the lower side is covered by the guide device 3C. The leg 3, the intermediate base 3B, and the guide device 3C form an intermediate leg unit 3U. Further, the intermediate base 3B has a floor side opening 3B1 for guiding the wiring guided in the guiding device 3C to the floor surface. The guiding device 3C has a shape that covers the lower portion, which is the non-moving portion of the intermediate leg 3, from the outside, and the wiring introducing port 3C1 that opens upward in the shape of a long hole (FIG. 6, FIG. 6). 10) and a partition wall 3C2 for partitioning the guide space X formed between the intermediate legs 3 from the outside.

The beam member 4 is for directly supporting the top plate 6 by being fixed to the upper ends of the end legs 2 and the intermediate legs 3, as shown in FIGS. 2 to 8, 10 and 11. There is a first beam member 41 that is directly connected to the end leg 2 and the intermediate leg 3 and that intersects with the wiring duct 5, and a longitudinal direction of the top plate 6 that intersects with the first beam member 41. The second beam member 42 is provided along with. The first and second beam members 41 and 42, which have a schematic lattice shape in a plan view, have communication openings 41a and 42a on the elevation side so that the wiring can be inserted therein. In addition, the first beam member 41 is further provided with a leg provided in the vicinity of a connecting portion between the end leg 2 and the intermediate leg 3 and an intermediate opening 41b which is a beam side opening at a central portion of the first beam member 41 so as to introduce the wiring from the wiring duct 5. It further has an opening for use 41c and an end opening 41d formed by recessing both ends in the longitudinal direction.

As shown in FIGS. 2 to 11, the wiring duct 5 extends between the plurality of intermediate legs 3 on the lower surface side of the top plate 6. The wiring duct 5 is formed by bending a sheet metal material extending along the longitudinal direction of the top plate 6 into a substantially U-shape, and is fixed to the beam member 4 by being fixed to an end portion of the duct main body 51. End mounting plate 52 and intermediate mounting plate 53, and a vertical sorting mechanism 54 that is assembled to the bottom wall 51a of the duct body 51 and divides the interior of the duct body 51 into upper and lower parts. The duct main body 51 is formed with a communication recess 51 b formed by recessing a part of the bottom wall 51 a facing the intermediate leg 3. The wiring in the wiring duct 5 is suitably guided to the side of the intermediate leg 3 by the communication recess 51b. The end mounting plate 52 and the intermediate mounting plate 53 are fixed to both ends of the duct main body 51 and fixed to the central portion of the first beam member 41. Accordingly, the wiring duct 5 is arranged so as to intersect the first beam member 41 supported by the intermediate leg 3 in a plan view. The end mounting plate 52 and the intermediate mounting plate 53 are provided with beam openings 52a and 53a communicating with the intermediate opening 41b of the first beam member 41. The intermediate mounting plate 53 is provided with a communication hole 53b for communicating with another continuous duct body 51 via the first beam member 41. The vertical sorting mechanism 54 is formed by bending, for example, four sheet metal materials arranged in a channel shape at a position facing the opening 63 of the top plate 6, and is inserted through the opening 63 or exposed from the opening 63. Lower wiring such as an upper accommodation space U for accommodating an upper wiring connected to the outlet 71 and a cord of the second outlet 72 which is a device inaccessible from the opening 63 and an operation cord 92 connected to the operation plate 91 of the operation unit 9. Is for vertically partitioning from the lower accommodation space D that accommodates. Further, the vertical sorting mechanism 54, which is the channel material, has a vertical partition 54a for further partitioning the interior of the duct body 51 in the vertical direction. The vertical sorting mechanism 54 is not limited to the position facing the opening 63 as shown in the drawing, but may be disposed at a position that can be touched when the user's hand is inserted into the opening 63.

As shown in FIGS. 1 to 5 and 8, the top plate 6 is a pair of end top plates 61 supported by the end legs 2 and an intermediate top plate exclusively supported by the intermediate legs 3 in the present embodiment. 62 and. Each of the end top plate 61 and the intermediate top plate 62 has an opening 63 for exposing the wiring duct 5 in the central portion in plan view. The top plate 6 is, for example, in the present embodiment, as shown in FIGS. 1 to 5, from a height position where a general adult can appropriately use in a sitting posture in a chair, to an elbow posture in a standing posture as shown in FIG. It is constructed so that it can be raised and lowered between the available height positions.

As shown in FIGS. 1, 6, 7, and 9, the first outlet 71 is configured to open and close the opening 63 provided in the top plate 6 described above. An opening/closing lid 71c that rotates in an openable/closable manner, an outlet main body 71a that is attached to the opening/closing lid 71c and is disposed so as to face obliquely upward in an accessible state in which the opening 63 is opened, and the opening/closing lid 71c and the outlet main body 71a. It has a mounting member 71d fixed to the lower surface side of the top plate 6 while rotatably supporting it, and a cord 71b for supplying power to the outlet main body 71a. In the present embodiment, the illustration of FIG. 9 is omitted so that a part of the opening/closing lid 71c is omitted so that the outlet main body 71a in the non-access state is shown. That is, in the present embodiment, the first outlet 71 is normally accommodated in the opening 63 and is in an inaccessible state where it cannot be directly accessed, but only when the outlet main body 71a is directly accessed, as shown by an imaginary line in FIG. Can be accessible from the opening 63 to the outside. As a result, the user not only can easily access the outlet main body 71a in the accessible state, but also can access the outlet main body 71a as a non-access state with the power cord on the user side connected to the outlet main body 71a. The first outlet 71 may be used. That is, even when the first outlet 71 is in the non-access state, the power cord can be taken out and used from the gap between the opening/closing lid 71c and the opening 63 onto the top plate surface. At this time, since the top plate 6 and the opening/closing lid 71c are kept flush with each other, the convenience of the top plate 6 is further improved. Further, as shown in the figure, the outlet main body 71a of the first outlet 71 is set so as to face outward and obliquely upward in an accessible state, thereby effectively enhancing the convenience of access to the user. The first outlet 71 is arranged above the vertical sorting mechanism 54 attached to the duct body 51. As a result, the cord 71b of the first outlet 71 is housed in the upper housing space U partitioned by the vertical sorting mechanism 54.

As shown in FIGS. 2, 3, and 5 to 7, the second outlet 72 is provided so as to face outward in the vicinity of the edge portion on the lower surface side of the top plate 6. The second outlet 72 has a tap 72a fixed near the end of the second beam member 42, and a cord 72b extending from the tap 72a to the beam, the wiring duct 5, and the intermediate leg 3 to the floor surface side. Have That is, the cord 72b is housed in the lower housing space D partitioned by the upper and lower sorting mechanism 54 in the wiring duct 5.

As shown in FIGS. 2 to 7 and 11, the operation unit 9 is a top plate lift which is electrically connected to the end legs 2 and the intermediate legs 3 to extend and contract the end legs 2 and the intermediate legs 3, respectively. It has an operation code 92 that is a wiring for use, and an operation plate 91 that is connected to the operation code 92 and that receives an operation from a user for moving up and down the top plate 6. In the present embodiment, the operation plates 91 are provided in pairs at the corners of the end top plates 61 at both ends so as to be diagonal. Each operation plate 91 is connected to the end leg 2 and the intermediate leg 3 which are adjacent to each other by wires via the operation cords 92, and the end leg 2 and the intermediate leg 3 which are connected to the other operation plate 91 are connected to each other. For synchronization, a wired or wireless connection is made to the other operation plate. Thereby, even if only one operation plate 91 is operated, a total of eight legs, that is, the end leg 2 and the intermediate leg 3, can be extended and contracted in synchronization with each other. It should be noted that since various existing wiring modes can be appropriately used as specific wiring modes for associating the operation cord 92, the operation plate 91, the end leg 2, and the intermediate leg 3, detailed description thereof will be omitted in the present embodiment. The relationship among the operation code 92, the wiring duct 5, and the beam member 4 will be described in detail. Further, in the operation cord 92, substantially all of the portions connected to the operation plate 91, each end leg 2, and the intermediate leg 3 are arranged in the beam member 4, the wiring duct 5, and the guide space X formed in the intermediate leg unit 3U. Has been done. In other words, in the operation cord 92, substantially all of the portion extending from the wiring duct 5 is arranged inside the beam member 4.

In the furniture 1 with the top plate of the present embodiment, at least a part of the first outlet 71, the second outlet 72, and the operation cord 92 in the operation unit 9 is collected from the wiring duct 5 to, for example, one intermediate leg 3. While having a wiring aggregation device 8 for guiding.

In this embodiment, the wiring aggregation device 8 is configured to have flexibility as a whole by including a hard annular aggregation part 81 and a connecting element 82 that connects the aggregation parts 81 so as to be capable of relative movement. It is a thing. The wiring aggregating device 8 can aggregate at least the first outlet 71, the cord 72b of the second outlet 72, and the operation cord 92, which are a plurality of wirings accommodated in the wiring duct 5, in a flexible state. The end of the wiring can be hung downward from the wiring duct 5 to the floor with a wiring extra length corresponding to the movable range related to the lifting operation of the top plate 6.

In the furniture 1 with the top plate according to the present embodiment, however, the guide device 3C that guides the wiring aggregation device 8 that hangs down from the wiring duct 5 so as to hang down along the guide space X between the plurality of intermediate legs 3. It is provided as a part of the unit 3U. Furthermore, in the furniture 1 with the top plate according to the present embodiment, the first outlet 71 and the second outlet 72 are connected to the outside in a state in which the wiring extra length corresponding to the movable range related to the lifting operation of the top plate 6 is provided. It is configured so that it can be done.

That is, when the top plate 6 is lifted from the state shown in FIG. 4, the state becomes as shown in FIG. 8. However, since the wiring aggregation device 8 aggregates all the wirings having the wiring extra length, the wiring aggregation device 8 deforms flexibly. All the wires are suitably guided without being forcedly pulled by the wires or interfering with each other.

Further, in the present embodiment, the wiring duct 5 accommodates the cord 71b of the first outlet 71, the cord of the second outlet 72, and the operation cord 92 that is the wiring for lifting the top plate 6, but FIG. As shown, the cord of the first outlet 71 is arranged in the upper accommodation space U above the vertical sorting mechanism 54, while the cord of the second outlet 72 and the operation cord 92 are below the lower sorting mechanism 54. It is arranged in the side accommodation space D. As a result, the respective wirings are organized and do not interfere with each other unnecessarily. In particular, in the present embodiment, since the channel-shaped upper and lower sorting mechanism 54 has the vertical partition 54b that partitions the wiring duct 5 also in the vertical direction, each wiring can be sorted and sorted more suitably.

Further, in the present embodiment, substantially all of the cord of the second outlet 72 extending from the wiring duct 5 and the operation cord 92 that is the ceiling plate lifting wiring is arranged inside the beam member 4.

That is, as shown in FIG. 10, the wires gathered by the wiring gathering device 8 are guided into the wiring duct 5 through the communication recess 51 b of the duct body 51. The cord of the second outlet 72 and the operation cord 92 guided in the wiring duct 5 pass through the beam opening 53a of the intermediate mounting plate 53 and the intermediate opening 41b of the first beam member 41 to the inside of the first beam member 41. Be guided to. Further, the wiring for raising and lowering the top plate, that is, the operation cord 92 is connected to the intermediate leg 3 through the leg opening 41c without being exposed to the outside.

Then, as shown in FIG. 11, the cord 72 b of the second outlet 72 extending from the wiring duct 5 and guided into the first beam member 41 passes through the communication opening 41 a of the first beam member 41 and the second beam member 42. Through the communication opening 42a to reach the tap 72a. Further, the wiring for raising and lowering the top plate, that is, the operation cord 92 is connected to the end leg 2 through the leg opening 41c without being exposed to the outside. Further, the operation cord 92 connected to the operation plate 91 is connected to the operation plate 91 through the end opening 41d with almost no exposure.

As described above, the furniture 1 with the ceiling plate according to the present embodiment is capable of collecting a plurality of wirings accommodated in the wiring duct 5 in a flexible state, and the end portion of the wirings is connected to the wiring duct. 5 to a floor surface, a plurality of wiring aggregation devices 8 that can hang down downward with a wiring extra length corresponding to the movable range related to the lifting operation of the top plate 6, and a plurality of wiring aggregation devices 8 that hang down from the wiring duct 5. And a guide device 3C for guiding so as to hang down along the guide space X between the intermediate legs 3.

With such a configuration, the furniture 1 with the top plate and the wiring guided from the floor surface to the top plate 6 unnecessarily hang down on the floor surface under the top plate 6 and interfere with the user's foot. The defect can be effectively avoided. That is, according to the present invention, when using the furniture 1 with a top that can move the top 6 up and down, the furniture 1 with a top makes it difficult for the wiring to interfere with the user's foot regardless of the position where the top 6 is lifted. Has been realized.

Further, in the present embodiment, the guide device 3C has the partition wall 3C2 that partitions the guide space X from the outside between the intermediate legs 3, so that the wiring hanging from below the top plate 6 is less noticeable from the outside. It has become.

Further, in the present embodiment, the intermediate leg 3 has a structure in which the upper portion can be extended and extended in a telescopic manner, but the guide device 3C covers the lower portion, which is the non-operating portion of the intermediate leg 3, from the outside. The guide device 3C does not interfere with the operation of the legs when the top plate 6 is moved up and down.

In the present embodiment, the wiring duct 5 accommodates the operation cord 92, which is a ceiling plate lifting wiring connected to the end legs 2 and the intermediate legs 3 for lifting the ceiling plate 6, so that the wiring is consolidated. The wiring integrated in the device 8 is inconspicuous from the outside at any place.

In this embodiment, the wiring duct 5 is attached to the lower surface side of the top plate 6 and is interposed between the operation cord 92 serving as the wiring for lifting the top plate and the leg so as not to be conspicuous from the outside. A configuration is adopted in which the beam 4 is arranged so as to intersect with a part thereof, and substantially all of the operation cords 92 extending from the wiring duct 5 are arranged inside the beam 4.

In order to efficiently accommodate the wiring inside the beam member 4 composed of the first and second beam members 41 and 42 having a substantially lattice shape in plan view, in the present embodiment, the first beam member 41 and the second beam member 41 are used. Communication openings 41a and 42a are provided to connect the wiring to 42.

Although one embodiment of the present invention has been described above, the specific configuration of each unit is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

For example, in the above embodiment, the furniture with a top plate in which two intermediate legs are arranged between the end legs and the end legs in the longitudinal direction is disclosed, but the furniture with the top plate according to the above embodiment is the number of the intermediate legs or The size of the top plate is not limited. In particular, in the furniture with the top plate according to the above-described embodiment, the number of intermediate legs is adjusted according to the scale of the office to be introduced, and the number of beams, wiring ducts, and intermediate top plates are appropriately adjusted according to the number of intermediate legs. By doing so, the size can be set arbitrarily.

Further, the beam and leg lifting functions, and other detailed configurations such as the specific shape and specifications of the operation unit can be variously modified without departing from the spirit of the present invention.

1... Furniture with a top plate 2... End leg 3... Intermediate leg 3C... Guidance device 5... Wiring duct 6... Top plate 8... Wiring aggregation device X... Guidance space

Claims (6)

A top plate,
End legs arranged on each of the one end side and the other end side in the longitudinal direction of the top plate for supporting the top plate so that the top plate can be moved up and down from below,
A plurality of intermediate legs for supporting the top plate so that the top plate can be moved up and down together with the end legs, which are arranged between the end legs arranged on one end side and the other end side in the longitudinal direction of the top plate. ,
A wiring duct extending between the plurality of intermediate legs on the lower surface side of the top plate,
A plurality of wirings accommodated in this wiring duct can be aggregated in a flexible state, and an end portion of the wiring is moved from the wiring duct to a floor surface in a movable range related to a lifting operation of the top plate. A wiring aggregation device that can hang downward with a corresponding wiring extra length,
A guide device that guides the wiring aggregation device that hangs down from the wiring duct so as to hang down along a guide space between two intermediate legs that are arranged in the short dimension direction of the top plate. Furniture with a top plate. The furniture with a ceiling plate according to claim 1, wherein the guide device has a partition wall that partitions the guide space from the outside between the intermediate legs. The intermediate leg has a structure capable of extending the upper portion in a telescopic manner.
The furniture with a ceiling plate according to claim 1 or 2, wherein the guide device has a shape that covers a lower portion, which is a non-moving portion of the intermediate leg, from the outside. The ceiling according to any one of claims 1 to 3, wherein the wiring duct accommodates a ceiling plate lifting wire connected to the end legs and the intermediate legs for electrically lifting the ceiling plate. Furniture with boards. The wiring duct is attached to the lower surface side of the top plate and is arranged so as to intersect with a part of the beam material interposed between the legs.
The furniture with a ceiling plate according to claim 4, wherein substantially all of the wiring for lifting the ceiling plate extending from the wiring duct is arranged inside the beam material. The beam member has a first beam member that intersects the wiring duct and a second beam member that is disposed orthogonal to the first beam member, and has a schematic lattice shape in a plan view. The furniture with a ceiling plate according to claim 5, further comprising a communication opening for connecting a wiring to the beam material and the second beam material.

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