Table with power supply

Abstract

To provide a table which allows a desk surface to be used widely and also an outlet to be easily used.SOLUTION: A horizontally longitudinal holder 4 is disposed via right and left support posts 3 above a top board 2, and an outlet unit 5 is disposed inside the holder 4. Insertion ports 7 of the outlet unit 5 are exposed upward from openings 6 opened on an upper surface of the holder 4. A power cable 8 passes through the inside of the holder 4 and the support posts 3 and is drawn outside a table. Since the outlet unit 5 is located above the top board 2, the outlet unit 5 never obstructs the placement of an article. The top board 2 can be easily used since a user only extends his / her arm onto the holder 4 while staying seated when inserting or removing a plug.SELECTED DRAWING: Figure 1

Description

Technical Field

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[0006]

[0001] The present invention relates to a table with a power supply device (a table with a power outlet).

Background Art

[0002] In tables (desks) used in offices, stores, homes, etc., it is widely practiced to provide power outlets. For example, power outlet placement holes are provided at the rear of the tabletop, and the power outlet is placed such that its upper surface is substantially flush with the upper surface of the tabletop. Also, wiring holes are made in the central part or the like of the tabletop, and the power outlet is fixed to a bracket fixed to the lower surface or the like of the tabletop, and a plug is inserted into and removed from the power outlet through the wiring hole. This structure can be seen. In so-called study desks, it is also widely practiced to provide a power outlet on the desk shelf. Construction It can be seen. In so-called study desks, it is also widely practiced to provide a power outlet on the desk shelf.

[0003] On the other hand, Patent Document 1 discloses a power outlet unit in which a tabletop panel is horizontally rotatably attached and fixed to the upper surface of a tabletop.

Prior Art Documents

Patent Documents

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] Now, as a working style in recent offices, the free address method without a fixed seat has been spreading. In addition to the style where workers work alone, a style where multiple people discuss and come up with ideas together has also been spreading. Of course, it has been conventionally practiced for multiple people to face each other and use one table for business talks and meetings.

[0006] Office tables should also evolve to adapt to changing working styles. In particular, in today's offices where working tools have shifted to laptops and tablet devices, there is a need for user-friendly tables that can easily power these electronic devices.

[0007] When considering conventional technologies, while they fulfill the function of providing power, they also offer advantages such as ease of use for people facing each other and the ability to use the desk surface more freely without being obstructed by the power outlet. What is It's hard to say.

[0008] The present invention was made against this backdrop, and aims to disclose a table with a power supply device that is easy to use in response to changes in the office work environment. [Means for solving the problem]

[0009] The present invention includes various configurations, and typical examples are specified in each claim. Of these, the invention of claim 1 constitutes a broader concept, and the table with a power supply device is "It has a tabletop supported by legs and an outlet unit positioned above the tabletop, The outlet unit is connected via a support column erected from the top plate. , spaced upward from the top surface A long, slender structure positioned horizontally. rectangular Table with power supply device installed in holder It is before The support post is 、 The aforementioned top plate Erected in an area horizontally inward from the edge. "It is being done." This is the structure.

[0010] The invention of claim 2 also constitutes a broader concept. in, " A table with a power supply device, comprising a tabletop supported by legs and an outlet unit positioned above the tabletop, wherein the outlet unit is mounted on an elongated holder positioned horizontally via a support column erected from the tabletop. That In the basic configuration, "The holder is formed in a square pipe shape having two side surfaces facing in opposite directions to the upper surface and the lower surface, and is supported by a plurality of the columns. The outlet of the outlet unit is opened outward from at least one of the upper surface and the side surface of the holder." It has such a structure. The invention of claim 3 also forms a superordinate concept. In claim 2 With the same basic structure, "The holder is formed in a square pipe shape having two side surfaces facing in opposite directions to the upper surface and the lower surface, and is supported by a plurality of the columns. The holder has a width dimension that allows users located on both sides sandwiching the holder and the top plate to easily reach the upper surface with their hands." It has such a structure.

[0011] The invention of claim 4 is an expansion example of claim 2 and "The outlet unit [[ID=2二十一]] to [[ID=2二十二]]has a protrusion formed to fit inside the opening formed in the holder, and the outlet is formed formed in the protrusion." It has such a structure.

[0013] The invention of claim 5 is in any one of claims 1 ~4, <{ " The support column is hollow and supports the holder from below, and the power cable supplying power to the outlet unit runs from a hole in the top panel through the inside of the support column and holder to the outlet unit. " It has such a structure.

[0014] Claim 6 The invention is "A table in which a plug-in / plug-out outlet unit is positioned above the tabletop, via a holder having a support column rising from the tabletop." In this basic configuration, "While there is an attachment hole communicating with the inside of the column in the top plate, The column is formed hollow and provided with an upper flange plate that overlaps the upper surface of the top plate. By sandwiching the top plate between the lower flange plate arranged on the surface of the top plate and the upper flange plate, the column is fixed to the top plate. It has such a configuration.

[0015] The invention of claim 7 is, in claim 2 where "The power outlet unit is mounted on the holder with its insertion port opened upward." It has such a configuration. The present invention also includes the invention of claim 8, and this invention is, A table with a power supply device comprising a rectangular tabletop supported by legs and an outlet unit positioned above the tabletop, wherein the outlet unit is mounted on an elongated holder positioned horizontally via a support column erected from the tabletop, The support columns are erected in an area spaced apart from the edges and corners of the tabletop toward the center of the tabletop. This is the structure.

Advantages of the Invention

[0016] In the invention of the present application, since the power outlet unit is arranged above the top plate, the power outlet unit is hidden by articles on the desktop, Tari and when placing articles on the top plate, the power outlet unit does not get in the way, and it is possible to supply power to electronic devices such as laptops while widely using the desktop. <​​​​​​Furthermore, the power outlet unit is conveniently located above the tabletop, making it extremely easy to plug in and unplug devices. This is especially useful when multiple people are using the table facing each other, as everyone can easily reach out and plug in or unplug devices, aligning with modern work styles and contributing to increased intellectual productivity. Of course, it's also ideal for business meetings and discussions, and convenient for individual use.

[0019] The holder's form can be specified in various ways, but the claim 2,3 By forming the holder in a square pipe shape and supporting it with multiple pillars, high strength can be ensured while creating a situation where any user of the table can easily insert and remove the plug simply by reaching out, thus further improving usability.

[0020] Furthermore, the holder can be used for other purposes. For example, if the holder is made of steel, magnets can be used to hold papers in place. Also, a small table can be attached to the part of the holder where the power outlet unit is not located, allowing it to be used to place small items such as drinks or mini planters.

[0021] When the holder is formed in the shape of a square pipe, 4 Adopting this configuration allows the outer surface of the protrusion where the outlet is formed in the outlet unit to be aligned with the outer surface of the holder, thus preventing the inner surface of the opening in the holder from being visible and improving the aesthetics.

[0022] The holder's position can be set according to the size and shape of the table, Embodiment When the tabletop is arranged in such a way that it is divided into two halves in a plan view, it is suitable for use as a table where multiple people can sit facing each other.

[0023] Also, if the tabletop is rectangular and multiple people can sit on both the front and back sides. , HoBy placing multiple outlet units on the rack, anyone can use the outlet unit without worrying about inconveniencing others, further improving usability.

[0024] Various structures can be used to attach the support columns to the tabletop, but by adopting a clamping structure using flange plates as in claim 6, processing such as attaching threaded inserts to the tabletop is unnecessary, and only mounting holes need to be drilled in the tabletop, thus reducing the effort required to process the tabletop.

[0025] While the outlets of the power outlet unit can open to the side (horizontally), opening them upward as in claim 7 allows anyone sitting across the table from each other to use each outlet unit simply by reaching out. This ensures that devices such as laptops are concentrated on one side of the table, allowing for efficient use of the outlets. In other words, even if the total number of outlets in the power outlet unit is sufficient, it prevents situations where certain people have difficulty using the outlet units. [Brief explanation of the drawing]

[0026] [Figure 1] The figure shows the first embodiment, where (A) is an overall perspective view, (B) is a partial broken perspective view, and (C) is a partial separated perspective view. [Figure 2] (A) is a partially broken front view showing the connection between the support column and the holder, (B) is a partial side view, and (C) is an IIC-IIC cross-sectional view of Figures 2(B) and 4(A). [Figure 3] The diagram shows the mounting structure of the support column. (A) is a perspective view from above, (B) is a perspective view from below, (C) is a perspective view of the support column fixing member from above, and (D) is a perspective view of the support column fixing member from below. [Figure 4] The diagram shows the outlet unit; (A) is a separate perspective view seen from above, and (B) is a separate perspective view seen from below. [Figure 5]This figure shows the outlet unit of the second embodiment, where (A) is a separated perspective view seen from above, and (B) is a separated perspective view seen from below. [Figure 6] (A) is a side view of the second embodiment in its assembled state, (B) is a side cross-sectional view of the second embodiment during assembly, and (C) is a cross-sectional view of the third embodiment. [Figure 7] (A) is a partial perspective view of the third embodiment, (B) is a plan view of the fourth embodiment, (C) is a cross-sectional view of (B) at CC, (D) is a plan view of the fifth embodiment, and (E) is a cross-sectional view of (D) at EE. [Modes for carrying out the invention]

[0027] (1) Outline of the Embodiment Next, embodiments of the present invention will be described based on the drawings. As shown in Figure 1, the table has a tabletop 2 supported by left and right legs 1. Above the front and rear middle section of the tabletop 2, a hollow rectangular holder 4 is positioned on the left and right sides via left and right support columns (legs), and two electrical outlet units 5 are built into the holder 4 on the left and right sides. The legs 1 are rectangular, but various types such as bar legs, gate-shaped, or H-shaped legs can be used. The tabletop 2 is made of wood including plywood, but it may also be made of steel or laminated material.

[0028] Holder 4 is made by cutting a square steel pipe, and four rectangular openings 6 are formed along its length where the outlet unit 5 is placed, with the socket 7 exposed from the outlet unit 5 in each opening 6. In the following description of the outlet unit 5, the terms front / back and left / right are used, where the front / back direction is the direction viewed from the axis of the holder 4, and the left / right direction is the horizontal direction perpendicular to the axis of the holder 4. The front and back are defined as the side of the end of the holder 4.

[0029] The support column 3 is made of round pipe, and its upper end is welded to the holder 4 and the bottom plate. As clearly shown in Figure 2(A), the power cable 8 connected to the outlet unit 5 is routed from inside the holder 4 through the support column 3 downwards. In this case, the power cables 8 from the two outlet units 5 are bundled together into one and routed downwards to the bottom of a single support column 3.

[0030] In other words, the left and right outlet units 5 share a power cable 8, and branch wires branch off from the core wire of the shared power cable 8 to each terminal of both outlet units 5. Therefore, even though there are two (or more) outlet units 5, only one power cable 8 is needed to connect to the external power supply. This reduces the effort required for wiring. Of course, it is possible to provide a separate power cable 8 for each outlet unit 5.

[0031] As shown in Figure 2(B), long ducts 9 that receive the power cable 8 are screwed to the underside of the tabletop 2. The power cable 8 is routed out from the ends of the ducts 8 to the outside of the table and connected to an external power source.

[0032] (2) Fixing structure of support column 3 As shown in Figure 3, a ring-shaped upper flange plate 10 is welded to the lower part of the support column 3, overlapping the upper surface of the top plate 2. A pair (or more) of nuts (long nuts) 12 are fixed to the lower surface of the upper flange plate 10 via a connecting plate 11. The upper ends of the nuts 12 are fixed to the connecting plate 11 so as not to rotate by crimping or welding, and the connecting plate 11 has multiple notches formed on its outer circumference which are welded to the upper flange plate 10 (spot welding may also be used).

[0033] Although the nuts 12 are arranged in pairs front to back, they may also be arranged in pairs left to right, or three or more nuts 12 may be arranged at equal intervals in the circumferential direction. It is also possible to weld the nuts 12 directly to the lower surface of the upper flange plate 10.

[0034] Top plate 2 has 12 nuts toA circular mounting hole 13 is provided that is circumscribing (or adjacent to) the top plate 2. The lower end of the nut 12 is positioned above the underside of the top plate 2, and a ring-shaped lower flange plate 14 is placed on top of the underside of the top plate 2. Two upward-facing screws 15, inserted through the lower flange plate 14, are screwed into the nut 12. Thus, the top plate 2 is sandwiched between the upper and lower flange plates 10 and 14, and the support column 3 is fixed to the top plate 2.

[0035] A protective bushing 16 made of synthetic resin is fitted to the lower flange plate 14 from below, and a cap 17 is fitted to the protective bushing 16 from below. The protective bushing 16 has an outward-facing flange portion 18 at its lower end, and a group of ribs 19 that fit onto the inner circumference of the lower flange plate 14 are formed at the lower end of its outer circumference. Therefore, the protective bushing 16 is irremovably attached to the lower flange plate 14 by press-fitting from below.

[0036] An inward-facing flange portion 20 is formed at the lower end of the protective bush 16, while a pair of engaging claws 21 that engage with the inward-facing flange portion 20 of the protective bush 16 are projected upward from the upper surface of the cap 17. Therefore, the cap 17 is held in a rotatable position and cannot be detached downward.

[0037] The cap 17 has a notch 22 for pulling out the power cable 8. Therefore, the power cable 8 can be pulled out to the side. The support column 3 is located on the side of the top plate 2. Therefore As in the embodiment, if a notch 22 is formed in the cap 17, the direction in which the power cable 8 is pulled out can be determined, so it is not always necessary to provide a duct 9. As in the embodiment, if the power cables 8 of two (or more) outlet units 5 are combined into one, the power cable 8 is located only at one side edge of the top plate 2, so it is easy to pull it out to the outside without using a duct 9.

[0038] As a means of fixing the support column 3, a nut cylinder that screws onto the lower part of the support column 3 can be provided on the lower flange plate 14, and the top plate 2 can be sandwiched and fixed between the upper and lower flange plates 10 and 14. For example, as shown in Figure 1, the left and right support columns 3 are positioned inside the area enclosed by the periphery of the top plate 2.

[0039] (3) Power supply section As shown in Figure 4 (see also Figure 2(C)), the outlet unit 5 comprises four plug holders 27, each having a pair of plug sockets (terminal ports) 7, a front-to-back elongated upper case 28 that overlaps the group of plug holders 27 from above, and a front-to-back elongated lower case 29 that overlaps the group of plug holders 27 from below. An end plug holder 30 can be attached to the front end of the lower case 29, but in this embodiment, the outlet unit 5 is recessed from the end of the holder 4, so the end plug holder 27 cannot be used. Therefore, the indication of the end plug holder 30 is for reference only.

[0040] The upper case 28 has left and right side plates and is shaped like a rectangular trough that opens downwards, with four window holes 31 into which the plug holders 27 are inserted from below. On the other hand, the plug holders 27 have front and rear flange portions 32 that contact the bottom surface of the upper case 28, and with the flange portions 32 contacting the upper case 28 from below, each plug holder 27 is fitted into the opening 6 of the holder 4 that is exposed on top of the upper case 28. Therefore, the portion of each plug holder 27 that is exposed upwards from the opening 6 of the holder 4 becomes a projection 27a, and an insertion opening 7 is formed in the projection 27a.

[0041] The lower case 29 has left and right side panels 29a, a front panel 29b, and a rear panel 29c, forming a box-shaped structure with an upward opening. The upper case 28 and the lower case 29 sandwich and secure each plug holder 27 from above and below. Although not shown in the diagram, each plug holder 36 is connected to two branch wires that have branched off from the power cable 11.

[0042] The upper case 28 has three long downward-facing long boss cylinders 33 and two short downward-facing short boss cylinders 34 arranged alternately in the front and back, protruding downwards. The lower case 29 has an upward-facing short receiving cylinder 35 that fits onto the downward-facing long boss cylinders 33 of the upper case 28, and two upward-facing long receiving cylinders 36 that fit onto the short boss cylinders 34 of the upper case 28, so that the boss cylinders 33, 34 and the receiving cylinders 35, 36 are fitted together (the upper and lower cases 28, 29 may be integrated by forcibly fitting them together, or the upper and lower cases 28, 29 may be fixed together with screws).

[0043] Furthermore, a front engagement groove 37 is formed at one end of the lower case 29, into which the flange portion 32 of the end plug holder 30 fits from above. The end plug holder 30 can be held in an upward position by the upper case 28, preventing upward movement. The end plug holder 30 can be used when the outlet unit 5 is located at the end of the holder 4. In this case, the end plug holder 30 can also be replaced with a USB charging port.

[0044] As shown in Figure 2(C), screws 38 are screwed into the lower plate of the holder 4, which fit into and contact the two upward-facing long receiving tubes 36 in the lower case 29 from below. The screws 38 push the outlet unit 6 upward, maintaining the state in which the projection 27a of the plug holder 27 is fitted into the opening 8 of the holder 4.

[0045] The rear panel 29a of the lower case 29 and the rear panel of the upper case 28 have upward-facing notches 39 for routing the power cable 8. Furthermore, as shown in Figure 2(C), the lower case 29 has passages 40 for the power cable 8 to pass through, located below the plug holder 27 and on both sides of the receiving tubes 35 and 36. It is also possible to form a notch 39 on the front panel 29c of the lower case 29, as shown by the dashed line in Figure 4(A).

[0046] As shown in Figures 1(C) and 3(A), both ends of the holder 4 are closed with caps 41. As shown in Figure 4(B), the cap 41 is provided with a rectangular tubular foot 42, which elastically fits onto the tip of the holder 4. The outer circumference of the foot 42 has a V-shaped cross-section projection, and it is attached to the holder 4 by using elastic force to make line contact between the projection and the holder 4.

[0047] (4) Summary In this embodiment, since the outlet unit 5 is positioned above the top plate 2, the outlet unit 5 is not hidden by items on the desk surface, nor does it get in the way when items are placed on the top plate, allowing for power supply to devices while making full use of the desk surface. In particular, positioning the support columns 3 towards the left and right sides of the top plate 2, as in this embodiment, is especially preferable because the support columns 3 are less likely to get in the way of items.

[0048] As in this embodiment, arranging the outlet units 5 in two locations, left and right, makes it convenient for two people to use side-by-side, as each person can use the outlet unit 5 in front of them. While it is also possible to open the sockets 7 on the sides of the holder 4, opening the sockets 7 on the top surface of the holder 4, as in this embodiment, allows both people facing each other to use all of the sockets 7, thus accommodating many devices used on a desk while minimizing the number of sockets 7.

[0049] As in the embodiment, forming the holder 4 with a hollow structure exposes only the socket 7 of the outlet unit 5, resulting in a clean and aesthetically pleasing appearance. In particular, the upper surface of the projection 27a on the outlet unit 5 and the upper surface of the holder 4 are aligned on the same plane, further enhancing the appearance. In this case, the outlet unit 5 is inserted into the holder 4 and then pushed up, but using screws 38 as in the embodiment has the advantage of allowing the outlet unit 5 to be pushed up with a simple structure.

[0050] As shown by the dashed line in Figure 1(A), the small table 43 is positioned in the part of the holder 4 between the left and right outlet units 5. do This is also possible. The small table 43 is convenient for placing small items such as small planters and drinks.

[0051] (5) Second Embodiment Next, a second embodiment shown in Figures 5 and 6 will be described. The second embodiment is another use of the outlet unit 5 of the first embodiment. In this embodiment, a retaining member 46, which has approximately the same overall length as the lower case 29, is positioned below the lower case 29, and the outlet unit 5 is pushed up by inserting the retaining member 46.

[0052] As clearly shown in Figure 5, the retaining member 46 has left and right side plates 46a and a front plate 46b, forming a trough-like shape, and the left and right side plates embrace the lower case 29 from both sides. The left and right side plates 46a of the retaining member 46 are formed to have three heights from the back: an upward-facing low step 47, an upward-facing middle step 48, and an upward-facing high step 49, changing the height in a stepped manner. Compression springs 50, formed in the shape of wire springs by punching holes, are provided projecting upward from each of the upward-facing steps 47, 48, and 49.

[0053] On the other hand, the left and right sides of the lower case 29 have material-removing portions (narrow portions) 51 into which the side plates 46a of the retaining member 46 fit, and on the upper surface (stepped surface) of the material-removing portions 51, three downward-facing steps are formed: a downward-facing low step portion 52, a downward-facing middle step portion 53, and a downward-facing high step portion 54, corresponding to the respective steps 47, 48, and 49 of the retaining member 46.

[0054] The height difference between adjacent stepped sections 47, 48, 49, 52, 53, and 54 is set to be slightly greater than the thickness of the holder 4. Then, the outlet unit 5 is attached to the upper case 28. doFor example, as shown in Figure 6(B), with the upward-facing lower section 47 of the retaining member 46 overlapping the downward-facing middle section 52 of the lower case 29, the outlet unit 5 is inserted into the holder 4, the upward-facing projections 27a of each plug holder 27 are fitted into the opening 6 of the holder 4 from below, and then the retaining member 46 is pushed inward while being pushed upward.

[0055] When the retaining member 46 is fully pushed in, each plug holder 27 is fitted into the opening 6 of the holder 4, and the stepped portions 47, 48, and 49 of the retaining member 46 come into contact with the stepped portions 52, 53, and 54 of the lower case 29 from below. As a result, the upper and lower cases 27 and 28 are held in a position where they cannot move downward along their entire length, and the outlet unit 5 is held in a stable state. In this case, since the retaining member 46 has a compression spring portion 50, even if there are manufacturing tolerances in each component, the outlet unit 5 can be held in a state without rattling.

[0056] The lower surface of the retaining member 46 is provided with multiple pairs of downward-facing ribs 55 on both the left and right sides, and these downward-facing ribs 55 are positioned to contact the lower inner surface of the holder 4. By providing the downward-facing ribs 55 in this manner, the retaining member 46 makes line contact with the holder 4, allowing for smooth insertion of the retaining member 46.

[0057] Furthermore, while stopper recesses 59 that open downwards are formed at the front ends of the left and right side plates 29a of the lower case 29, spring-shaped stopper pieces 60 that fit into the stopper recesses 56 from below are provided at the front ends of the left and right side plates 46a of the retaining member 46. By fitting these stopper pieces 57 and the stopper recesses 56 together, the lower case 29 and the retaining member 46 are held in a position where they cannot move relative to each other, thereby holding the outlet unit 5 in a position where it cannot move forward or backward.

[0058] In this embodiment, since no holes such as screw holes are required on the lower surface of the holder 4, the effort required for processing the holder 4 can be reduced. Note that the outlet unit 5 in the second embodiment is the same as the outlet unit 5 in the first embodiment. In this embodiment, the two outlet units 5 are arranged in opposite orientations such that their raised sections 49 and 54 are located on the end side of the holder 4. Screws that define the insertion position of the outlet unit 5 may be screwed into the lower plate of the holder 4 from below.

[0059] (6) Third Embodiment In another example shown in Figure 6(C), the retaining member 46 is configured in a clip-type manner. Specifically, the retaining member 46 is formed in a plate shape with front-to-back longitudinal sections so as to fit from below into the front-to-back longitudinal elongated holes 61 formed in the holder 4. Downward-facing engaging feet 63, separated by slits 62, are formed at both the front and rear ends, and engaging claws 64 that abut against the inner surface of the lower plate in the holder 4 are formed at the lower ends of the engaging feet 63.

[0060] The outlet unit 5 has a groove 65 into which the retaining member 46 is fitted from below. The outlet unit 5 is simplified transformation The diagram shows the diagram without any hatching. The retaining member 46 is provided with a compression spring portion 50 having the same structure as in the second embodiment. In the diagram, the compression spring portion 50 is shown in its fully deformed state.

[0061] In this example, the total height of the outlet unit 5 is equal to the holder 4 of Set to a dimension slightly smaller than the internal height. and With the projection (not shown) of the outlet unit 5 fitted into the opening 6 (not shown) of the holder 4, the groove 65 of the outlet unit 5 The retaining member 46 When pushed from below, the engaging claw 64 engages with the lower surface of the holder 4, so that the retaining member 46 is held in a position where it cannot be dislodged, and the outlet unit 5 is held in a position where it cannot move back and forth. In this state, the outlet unit 5 is elastically biased by the compression spring portion 50 of the retaining member 46, and is therefore held in a position where there is no rattle.

[0062] In this example, it is preferable that the retaining members 46 be arranged in pairs on the left and right sides of the lower surface of the holder 4, and in multiple pairs in the front and back directions. It is also preferable that the retaining members 46 be arranged between adjacent protrusions 27a.

[0063] (7) Fourth to Sixth Embodiments The fourth embodiment shown in Figure 7(A) illustrates an example of a structure in which the holder 4 and the support column 3 are made of sheet metal. Specifically, the holder 4 is formed in the shape of a U-shaped channel that opens upward, and a power strip-shaped outlet unit 5 is fixed inside it. Because holder 4 is U-shaped, the overall shape is rectangular. The support column 3 is integrally formed with the holder 4 and is hollow. A lower plate 3a is provided at its lower end, overlapping the top plate 2, and the lower plate 3a is fixed to the top plate 2 with screws (not shown).

[0064] The bottom plate of the holder 4 has downward-facing reinforcing ribs 66 that bulge out along its entire length, and the power cable 8 is passed through the inside of the reinforcing ribs 66. Although not shown in the diagram, a resin cap is attached to the corner where the holder 4 and the support column 3 are connected.

[0065] Instead of screwing the bottom plate 3a to the top plate 2, a clamp portion 67 is provided at the lower end of the support column 3, as shown by the dashed line, to surround the top plate 2 from the outside. The screws provided on the bottom plate of the clamp portion 67 can then be brought into contact with the top plate 2 from below, either directly or via a backing plate. The clamp method can be applied to existing tables. The clamp-type power supply device can also be claimed independently.

[0066] In the fifth embodiment shown in Figures 7(B) and 7(C), as an example of application to a large table with a large front-to-back width, the holder 4 is formed in a loop shape, and a number of outlet units 5 are arranged on the holder 4 at appropriate intervals. The sockets of the outlet units 5 may be opened upwards, but in this embodiment, since the plug 68 can only be inserted into and removed from the outlet unit 5 from one side, it is preferable to open them on the side. The table in this embodiment is oval-shaped, but it may also be rectangular or circular.

[0067] In the sixth embodiment shown in Figures 7(D) and 7(E), the design is applied to a table with a loop structure that encloses a space. In this embodiment, the holder 4 is positioned above the inner circumference of the tabletop 2 via a group of support columns 3. In this case as well, since the outlet unit 5 is used from only one side of the tabletop 2, it is convenient to have the outlet opening on the side of the holder 4.

[0068] Although embodiments of the present invention have been described above, the present invention can be implemented in various other ways. For example, the outlet unit may be placed in only one location on the holder, and the number of outlets in each outlet unit can be arbitrarily set. Furthermore, the holder may be simply a plate or a U-shaped structure with a downward opening.

[0069] It is also possible to form the overall structure into a T-shape by providing a holder at the upper end of one support column 3. In this embodiment, the holder is installed in one place on the tabletop, but it may be placed in multiple places on the tabletop. For example, some tables are long types with a width of 3m or more, and in the case of such long tables, multiple holders may be placed, or a single holder may be placed and supported by an intermediate support column. It is also possible to attach a monitor that can be connected to a PC or tablet to the holder.

[0070] The outlet unit in this embodiment is composed of three types of components: upper and lower cases and a plug holder. However, it can be implemented in various structures, such as a structure in which the plug holder is located within a single case. [Industrial applicability]

[0071] The present invention can be embodied in a table with a power supply device. Therefore, it can be used industrially. [Explanation of Symbols]

[0072] 2 Top plate 3. Support columns that constitute the power supply device 4. Holders that make up the power supply device 5. Outlet units that make up the power supply device 6. Holder opening 10 Upper flange plate 13 mounting holes 14 Lower flange plate 27 Plug holder 28 Upper Case 29 Lower Case 38. Retaining screws 46 Retaining member

Claims

1. It has a tabletop supported by legs and an outlet unit positioned above the tabletop, The aforementioned outlet unit is a table with a power supply device, which is mounted on an elongated rectangular holder positioned horizontally and spaced above the tabletop, via a support column erected from the tabletop, The support column is erected in a region that is horizontally separated inward from the edge of the top plate. Table with power supply device.

2. A table with a power supply device, comprising a tabletop supported by legs and an outlet unit positioned above the tabletop, wherein the outlet unit is mounted on an elongated holder positioned horizontally via a support column erected from the tabletop, The holder is formed in the shape of a square pipe having an upper surface and a lower surface and two sides facing in opposite directions, and is supported by a plurality of the support columns, with the outlet unit arranged inside, and the socket of the outlet unit opening outward from at least one of the upper surface and side of the holder. Table with power supply device.

3. A table with a power supply device, comprising a tabletop supported by legs and an outlet unit positioned above the tabletop, wherein the outlet unit is mounted on an elongated holder positioned horizontally via a support column erected from the tabletop, The holder is formed in the shape of a square pipe having an upper surface and a lower surface and two sides facing in opposite directions, and is supported by a plurality of the aforementioned support columns, The holder has a width dimension that allows users positioned on both sides of the holder and the top plate to easily reach the top surface. Table with power supply device.

4. The outlet unit has a projection that fits from the inside into an opening formed in the holder, and the socket is formed on the projection. A table with a power supply device as described in claim 2.

5. The support column is hollow and supports the holder from below, and the power cable supplying power to the outlet unit runs from a hole in the top panel through the inside of the support column and the holder to the outlet unit. A table with a power supply device as described in any one of claims 1 to 4.

6. A table in which a plug-in and detachable outlet unit is positioned above the tabletop, via a holder having a support column rising from the tabletop, The top plate has mounting holes that communicate with the inside of the support column, The support column is formed hollow and has an upper flange plate that overlaps the upper surface of the top plate. The support column is fixed to the top plate by sandwiching the top plate between a lower flange plate and the upper flange plate, which are positioned on the surface of the top plate. Table with power supply device.

7. The aforementioned outlet unit is mounted in the holder with its outlet opening facing upwards. A table with a power supply device as described in claim 2.

8. A table with a power supply device comprising a rectangular tabletop supported by legs and an outlet unit positioned above the tabletop, wherein the outlet unit is provided in an elongated holder positioned horizontally via a support column erected from the tabletop, The support columns are erected in areas spaced apart from the edges and corners of the tabletop toward the center of the tabletop. Table with power supply device.

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