Portable power supply device

Abstract

To disclose a structure that can be easily used by persons facing each other across a table, in a portable feeding device used while being attached to the table.SOLUTION: A feeding device 1 has a base body 3 placed on a floor, a strut 4 raised from an edge portion of the base body 3, and an arm 5 that horizontally extends from an upper end of the strut 4 to enter an upper part of the table 2, and an outlet unit 6 is built in an arm 5. The arm 5 extends in a posture dividing the base body 3 into two parts in a plane view, and has a length that does not bulge out from the base body 3. An insertion port 35 of the outlet unit 6 opens upward. The arm 5 overhangs above a top plate, so that a person can insert / extract a plug while being seated. The insertion port 35 opens upward, so that persons facing each other across a table 2 can share all insertion ports 35.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a portable power supply device (outlet unit) for use in offices and the like. [Background technology]

[0002] Electronic and electrical devices such as laptops and projectors are widely used in offices, homes, stores, and various other places, and these devices are generally powered by electrical outlets. Outlets come in various types, including fixed types installed on walls, power strips attached to extension cords, and types permanently attached to furniture such as desks and room dividers.

[0003] In recent years, the free address system, where there are no fixed seats, has become popular as a working style in offices. In this free address working style, simple types of tables tend to be used, as they emphasize flexibility, and power strips are often used to power laptops. However, running cables on the floor is problematic in terms of aesthetics and pedestrian safety, so the cables are pulled out from the raised floor and connected to a power strip. However, with this system, the power strip is placed on the floor, which is problematic in terms of flexibility and appearance.

[0004] Therefore, portable power supply devices that can stand on the floor and be carried anywhere have been proposed. As an example, Patent Documents 1 and 2 disclose a stand type with an outlet on the side of a square or other shaped pole (mast). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-110302 [Patent Document 2] Japanese Patent Application Publication No. 2019-110131 Summary of the Invention [Problem to be solved by the invention]

[0006] The devices in Patent Documents 1 and 2 are useful when working while sitting on a sofa or when using a table by one person, but when multiple people share a table for business negotiations or meetings, and multiple laptops or the like are placed on a desk, the cables may not reach the desk. The problems that come However, there were problems such as the inability to insert or remove the plug while sitting in a chair, making it difficult to use. In other words, it lacked versatility.

[0007] The present invention has been made against the background of the current situation, and aims to disclose a portable power supply device that is easy to use and highly versatile. [Means for solving the problem]

[0008] The present invention includes various configurations, typical examples of which are specified in each claim. Among these, the portable power supply device according to the invention of claim 1 is as follows: "It has a base body that rests stably on the floor, a hollow support column that stands up from the base body, and a hollow arm that extends in a cantilevered manner from the upper end of the support column, The support column is set at a height higher than the top surface of the table, so that the arm can be positioned above the table. In this basic configuration, "The base body has a plate-like or frame-like shape. The support and the arm are integrally formed by bending a square pipe, A power outlet unit that can be plugged in and out from the outside is built into the arm, and a power cable connected to the power outlet unit is passed through at least a part of the support pole. It has the following characteristics. In this case, the power cable ofThe power cable may be passed through the entire length of the support and pulled out downward from the bottom end of the support, or pulled out laterally through a horizontal hole in the support. In other words, the entire length of the support may be used as a wiring passage, or only a part of it may be used as a wiring passage.

[0009] The invention of claim 2 is an embodiment of claim 1, "The base body is circular in plan view." The structure is as follows.

[0010] The invention of claim 3 is in parallel with claim 1, and has the same basic structure as claim 1, "The base body has a plate-like or frame-like shape. The support and the arm are integrally formed by bending a square pipe, Inside the arm is a socket that can be inserted and removed from the outside. unit Built-in power outlet unit The power supply cable connected to the support is passed through at least a part of the support. It is being " It has the following characteristics.

[0011] The invention of claim 4 is an embodiment of the invention of claim 3, "The base body is provided with casters." The structure is as follows.

[0012] The invention of claim 5 is any one of claims 1 to 4, "The support posts are offset to the edges of the base body, while the arm is oriented so as to pass through an axis of the base body in a plan view, and has a length set so that the arm hardly or not at all protrudes outside the base body in a plan view, Furthermore, the outlet and the multiple sockets for the unit are open on the top surface of the arm. The structure is as follows.

[0013] The invention of claim 6 is It is in parallel with claims 1 and 3 and has the same basic structure as claim 1. Leave, " The base body is formed in a plate or frame shape, andThe support and arm are integrally formed by bending a square pipe. An inward rib extends from the base of the arm to the top end of the support at the inner corner of the corner where the support and arm are connected. is formed, A power outlet unit that can be plugged in and detached from the outside is built into the arm, and a power cable connected to the power outlet unit is passed through at least a part of the support pole. " The structure is as follows.

[0014] The invention of claim 7 is any one of claims 1 to 6, "One end surface of the outlet unit is exposed at the open end of the arm, and a plug socket is also provided on the one end surface of the outlet unit." The socket of the present invention also includes a USB port for power. [Effects of the Invention]

[0015] In each of the present inventions, the arm on which the outlet unit is attached can be positioned so that it is recessed above the table or along the side edge of the table top, eliminating the need for the table user to leave the table each time to insert or remove a plug; instead, the table user can simply insert or remove the plug of an electronic or electrical device into or from the outlet unit while remaining seated in a chair.

[0016] Therefore, the usability of the outlet unit is significantly improved not only when the table is used by one person, but also when multiple people are sitting facing each other using laptops, etc. for business negotiations or meetings. Another advantage is that there is no need to run long cables connected to devices over the desk surface, allowing the desk surface to be kept tidy.

[0017] In addition, the support pole can also be used as a wiring duct for the power cable, preventing or minimizing the exposure of the power supply cable, improving appearance and preventing problems such as the power supply cable getting caught on objects. Furthermore, the base body is plate-shaped or frame-shaped, making it lightweight and easy to carry. Note that frame-shaped types also include types with multiple legs extending radially from the bottom end of the support pole.

[0018] Now, one type of table leg device is an inverted T-type, with a support pillar erected from the middle of the longitudinal horizontal rod.In this type, ground contact bodies (or casters, adjusters) are placed on both ends of the horizontal rod, and there is usually a gap of several centimeters above and below between the horizontal rod and the floor.

[0019] And while power supply devices are usually placed on the side of a table, claim 1 allows the plate- or frame-shaped base body to fit into the space below the horizontal rod, so even on tables with inverted T-shaped legs, the support pole can be placed in contact with or close to the tabletop, and the whole or most of the arm can be placed above the tabletop. Therefore, not only on tables with four legs, but also on tables with inverted T-shaped (or inverted Y-shaped) legs, the plug can be placed in a position that makes it easy to insert and remove it from the outlet unit, making it easy to use in this respect as well.

[0020] The power supply device of the present invention can be placed in front of or beside a sofa, for example, but if the sofa has legs and there is space between the seat and the floor, the base body can be inserted into the space below the seat, allowing the support pillar to be placed closely against the sofa, which has the advantage of preventing the power supply device from interfering with the passage of others.

[0021] The base body can be in various shapes such as a square in plan view, but forming it into a circle as in claim 2 has the advantage of not only looking good but also preventing the feet of walking people from getting caught on it.

[0022] The invention of claim 3 is a battery-type power supply device, but by arranging the arm above the tabletop and the power cable passing through the inside of the support, it achieves the same effect as claim 1. And in claim 3, the base body is formed in a tray shape and the battery is detachable, so it is easy to use different types of batteries or to move just the battery for charging. Therefore, even though it is a battery-type device, it is easy to use.

[0023] Batteries are quite heavy, but if the power supply device is configured as a cart with casters as in claim 4, it can be moved with little effort, which is preferable. Claim 3 has the advantage that it can be used as a platform for placing objects, allowing objects to be placed on top of the battery or on a part of the base body where the battery is not placed, but if casters are provided as in claim 4, it can be moved with objects still loaded, reducing the burden on the person.

[0024] The support pillar can be erected in the center of the base body, but if it is offset to the edge of the base body as in claim 5, the support pillar can be placed in a vertical position while the base body can be inserted inside the table, which has the advantage of preventing the base body from getting in the way of people passing by.

[0025] Now, it is possible to have the socket of the outlet unit open on the side of the arm, but in this case, if the socket is only open on one of the two sides of the arm, and it is facing away from the user of the table, it will be very difficult to use.

[0026] On the other hand, if there are outlets on two sides of the arm, there is no directionality, so the outlet unit can be used from both sides even when the table is used facing each other.However, there is a concern that even if the overall number of outlets is sufficient, if one person uses a lot of devices, there may not be enough outlets on that person's side, which could create an imbalance.This can be addressed by lengthening the arm and increasing the number of outlets on both sides, but then another problem arises in that the arm becomes excessively long and is likely to get in the way.

[0027] In contrast, if the invention of claim 5 of the present application is adopted, the sockets of the outlet unit open upward, so whether the table is used by one person or by multiple people sitting facing each other, each person can easily insert and remove plugs from all sockets while remaining seated in their chairs. Furthermore, because all sockets are shared by all users, the length of the arm can be kept to a minimum, allowing for easy insertion and removal of plugs from devices on the desk.

[0028] The shapes of the support and arm can be embodied in various ways, but since socket units are usually square, if the support and arm are made of processed square pipes as in claim 6, the socket unit can be placed on the arm without any difficulty. The same applies to claims 1 and 3.

[0029] When bending metal square pipes such as steel pipes, the inner corners are subject to compressive deformation and are prone to wrinkling. To address this issue, it is possible to form notches or holes to allow relief, but this would result in a decrease in strength.

[0030] In contrast, if ribs are formed on the inner corners as in claim 6, the wrinkles that occur during bending can be absorbed by the ribs without the need for notches or holes, making it possible to obtain a product with high dimensional accuracy without incurring a decrease in strength. Also, since the inner corner surfaces of the corners are not easily seen, there are virtually no aesthetic problems.

[0031] If a socket is also provided on the front end surface of the arm as in claim 7, the number of sockets can be increased while allowing easy insertion and removal for both people sitting across from each other at the table. In this case, the socket on the end surface can be a standard one with a pair of electrode holes into which a plug with two electrode plates can be inserted, or it can be a USB port for a smartphone or tablet. [Brief explanation of the drawings]

[0032] [Figure 1]1A and 1B are diagrams showing a first embodiment, in which (A) is an overall perspective view of a power supply device in use, (B) is a side view of (A) as seen from the BB direction, and (C) is a plan view. [Figure 2] 1A is a perspective view of the power supply device as seen from below, FIG. 1B is a bottom view, FIG. 1C is a cross-sectional view taken along line CC of FIG. 1A, and FIG. 1D is a perspective view of the power supply device as seen from below in another example. [Figure 3] (A) is a perspective view of the support pole separated, and (B) is a perspective view of the joint separated. [Figure 4] 1A and 1B are diagrams mainly for explaining the joint, in which (A) is an exploded perspective view seen from above, and (B) is an exploded perspective view seen from below. [Figure 5] (A) is a longitudinal side view of the power supply unit with the cap separated, (B) is a longitudinal side view of the power supply unit during assembly, (C) is a separated perspective view of the outlet unit and arm, and (D) is a separated side view of the outlet unit and cap. [Figure 6] (A) is an external perspective view of the arm, and (B) is an exploded perspective view of the power supply unit. [Figure 7] (A) is a partial perspective view of the power supply unit with the cap removed, (B) is a separated perspective view of the power supply unit seen from below, (C) is a perspective view of the cap, and (D) is a partially separated perspective view of the power supply unit. [Figure 8] 10A and 10B are diagrams showing other embodiments, in which (A) is a side view of the second embodiment, (B) is a side view of the third embodiment, (C) is a side view of the first reference example, (D) is a cross-sectional view taken along the line DD of (C), (E) is an upper oblique view of the fourth embodiment, and (F) is a lower oblique view of the fourth embodiment. [Figure 9] 10A and 10B are diagrams showing a fourth embodiment, in which (A) is an exploded perspective view, (B) is a plan view, and (C) is a side view. [Figure 10] FIG. 10 is a diagram showing second to seventh reference examples. DETAILED DESCRIPTION OF THE INVENTION

[0033] (1) Overview of the First Embodiment Next, embodiments of the present invention will be described with reference to the drawings. First, a first embodiment shown in FIGS.

[0034] As shown in Fig. 1, power supply device 1 is used by being placed on the outer periphery (generally the left or right short side) of table 2, and includes a circular base body 3 that rests on the floor, a support post 4 that rises from the edge of base body 3, and an arm 5 that bends horizontally from the top end of support post 4. Support post 4 is set at a height higher than the upper surface of table top 2a of table 2, and arm 5 extends in a position that bisects base body 3 in a plan view. Note that arm 5 can also be called an arm-shaped holder.

[0035] Therefore, by inserting the base body 3 into the table 2, the arm 5 can be positioned above the top surface of the table 2. As shown in Fig. 1(C), the arm 5 is sized so that its tip does not extend outside the base body 3 in a plan view. The arm 5 may be long enough to extend outside the base body 3, but setting the length so that it does not extend outside the base body 3 as in the embodiment has the advantage that the arm 5 can be prevented from hitting a wall, for example, when the power supply device 1 is placed close to a wall.

[0036] The arm 5 may be set at a height slightly above the tabletop 2a, or at a height spaced apart by, for example, 10 cm. The support post 4 may be made extendable, allowing the height of the arm 5 to be adjusted.

[0037] In the following, the terms front-rear and left-right are used to specify directions, with the longitudinal direction of arm 5 being the front-rear direction and the horizontal direction perpendicular to the longitudinal direction of arm 5 being the left-right direction. With regard to front and rear, the side of the free end of arm 5 is the front, and the side of support 4 is the rear.

[0038] The support post 4 and arm 5 are integrally formed by bending a steel square pipe into an L shape, and the arm 5 has a built-in outlet unit 6 shown in Figure 5(C) built into it. The tip of the arm 5 is covered with a cap 7. The outlet unit 6 is basically a four-port type, and is positioned with the insertion port for the plug (not shown) facing upward. Therefore, the upper panel of the arm 5 has four square holes (square openings) 8.

[0039] As shown in Figures 2(A) and (C), an inward rib 9 is formed on the inner corner surface of the corner where the arm 5 and the support 4 are connected, extending from the base end of the arm 5 to the upper end of the support 4. The rib 9 is formed before the straight square pipe is bent, and absorbs the stress during the bending process. Therefore, the square pipe can be bent without wrinkles, and the phenomenon of the inner corner widening and deformation can be prevented.

[0040] 2(A) and 2(B), four grounding bodies 10 are arranged in a circumferential direction on the underside of the base body 3 and are fixed to the base body 3 by means of screws, adhesives, or other means. The grounding bodies 10 are made of synthetic resin, and their outward surfaces are formed in an arc shape with a slightly smaller radius of curvature than the outer circumferential surface of the base body 3, while their inward surfaces facing the center of the base body 3 are formed flat.

[0041] The outward surface of the grounding body 10 is formed with a groove 12 into which the power cable 11 can be wound, and the inward surface is formed with a pair of dummy connection ports 14 into which the terminals of the plug 13 connected to one end of the power cable 11 can be inserted. Therefore, when the power supply device 1 is not in use, the power cable 11 is wound into the groove 12 of the group of grounding bodies 10, and the plug 13 is connected to the dummy connection port 14 of one of the grounding bodies 10, thereby keeping the power cable 11 from unraveling.

[0042] Since the grounding body 10 has a certain thickness, numerous ribs 15 extending in the circumferential and radial directions are formed to maintain the thickness while reducing the weight. Each grounding body 10 may be provided with multiple pairs of dummy connection ports 14. As shown in FIG. 2(A), the inward-facing side of the grounding body 10 is curved outward on both sides of the dummy connection port 14, and a cable receiving portion 10a is provided at the bottom end of this curved portion on which the power cable 11 can be placed. The cable receiving portion 10a is provided with an upward-facing weir piece 10b to prevent the power cable 11 from slipping off.

[0043] The number of grounding bodies 10 can be set as desired. In the modified example shown in FIG. 2(D), eight grounding bodies 10 are arranged in the circumferential direction. By reducing the number of grounding bodies 10, the length of the grooves 12 can be increased, allowing the winding device made up of a group of grounding bodies 10 to be formed in a shape similar to a drum. A small gap 16 is left between adjacent grounding bodies 10. When using the power supply device 1, the power cable 11 can be pulled out through the gap 16 between adjacent grounding bodies 10.

[0044] 2(A), (B), and (D), a cable insertion hole 17 is formed in the base body 3 below the pillar 4. Naturally, the cable insertion hole 17 opens into the gap 16 between two adjacent grounding bodies 10.

[0045] (2) Pillar connection structure 3 and 4, the support column 4 is connected to the base body 3 via a pair of overlapping front and rear joints 20. That is, the joint 20 is fixed to the base body 3 by screwing an upward screw 21 inserted into the base body 3 from below into the joint 20, and the support column 4 is fixed to the joint 20 by screwing a horizontal screw 22 inserted into the support column 4 from the side into the joint 20.

[0046] Therefore, screw insertion holes 23, 24 are opened in the base body 3 and the support 4, respectively, and the joint 20 is formed with a vertically elongated female threaded hole 25 into which the upward screw 21 is screwed and a horizontally elongated female threaded hole 26 into which the horizontal screw 22 is screwed.

[0047] The joints 20 are formed in a box shape and, when stacked, have a block-like appearance, with longitudinally long engaging protrusions 27 and engaging grooves 28 formed on the overlapping longitudinal side edges. The pair of joints 20 have the same structure, but the engaging protrusion 27 of one joint 20 fits into the engaging groove 28 of the other joint 20, so that the pair of joints 20 are held inside the support 4 without slipping.

[0048] The opposing portions of the joint 20 are recessed, and a cross-shaped rib 29 and a cylindrical boss 30 for forming the horizontally elongated female threaded hole 26 are formed in this recess. An inward notch 31 is formed at the upper end of the joint 20 to allow the power cable 11 to pass through.

[0049] Furthermore, half-split trough-shaped portions 32 that overlap each other and hold the power cable 11 protrude downward from the underside of the joint 20, and the trough-shaped portions 32 are fitted into the screw insertion holes 23 of the base body 3. Therefore, the trough-shaped portions 32 also have the function of positioning the joint 20 relative to the base body 3.

[0050] Since the power cable 11 is gripped by the pair of gutter-shaped parts 32, the power cable 11 does not swing around inside the support 4 and make rattling noises, the power cable 11 is not damaged when an external pulling force acts on the power cable 11, and the power cable 11 does not come off the outlet unit 6 even if it is pulled by mistake.

[0051] The opposing portions of the pair of joints 20 form a space through which the power cable 11 passes, but because each joint 20 is fixed to the support 4 with one horizontal screw 22, the horizontal screws 22 do not cross the space through which the power cable 11 passes. Therefore, there is no problem in that the horizontal screws 22 interfere with the power cable 11.

[0052] Since the joint 20 is fixed to the base body 3 with one upward screw 21, the vertically elongated female screw hole 25 is formed close to one end of the joint 20. However, it is possible to fix a pair of joints 20 to the base body 3 with two upward screws 21 each, in which case the attachment strength of the joints 20 can be greatly improved.

[0053] The support 4 has a screw insertion hole 24, but the location of the screw insertion hole 24 is an inwardly protruding burred portion. Therefore, an outward notch 33 is formed on the top surface of the part of the joint 20 facing the support 4 to allow the burred portion to escape when the support 4 is fitted. In addition, vertically elongated grooves 33a are formed on both the left and right sides of the outward notch 33. Therefore, the joint 20 abuts against the inner surface of the support 4 via four vertically elongated ribs.

[0054] (3) Power supply unit 6(B) and 7(B), the outlet unit 6 comprises four plug holders 36, each formed with a pair of plug sockets (terminal sockets) 35, an upper case 37 extending longitudinally from front to rear and overlapping the group of plug holders 36 from above, and a lower case 38 extending longitudinally from front to rear and overlapping the group of plug holders 36 from below, with a retaining member 39 overlapping the lower case 38 from below. The outlet unit 6 also comprises a front plug holder 40 attached to the front end of the lower case 38.

[0055] The upper case 37 has left and right side plates and is shaped like a rectangular gutter that opens downward, with a window hole 41 into which the plug holder 36 fits from below. On the other hand, the plug holder 36 is formed with front and rear flanges 36a that abut against the underside of the upper case 37, and with the flanges 36a abutting against the upper case 37 from below, each plug holder 36 fits into a rectangular hole 8 in the arm 5 exposed above the upper case 37. Therefore, the plug holder 36 has an upward protrusion 36b that fits into the opening 8 via the window hole 31. The rear end of the upper case 37 forms a downwardly inclined surface 42.

[0056] The lower case 38 has left and right side plates 38a, a front plate 38b, and a rear plate 38c, and is shaped like an upwardly opening box. The upper case 37 and the lower case 38 sandwich and fix each plug holder 36. Although not shown, two branch lines branching from the power cable 11 are connected to each plug holder 36. As shown in FIG. 6(B), an upward notch 38f is formed in the rear plate 38c of the lower case 38 for allowing the power cable 11 to be drawn out. As shown in FIG. 7(B), a notch 37f for allowing the power cable 11 to be drawn out is also formed in the rear plate of the upper case 37.

[0057] As shown in Fig. 7(B), three long boss tubes 43 and two short boss tubes 44 are arranged alternately in the front and rear and protrude downward from the upper case 37, while as shown in Fig. 6(B), a short receiving tube 45 that fits over the long boss tube 43 of the upper case 37 and two long receiving tubes 46 that fit over the short boss tube 44 of the upper case 37 protrude from the lower case 38, and the boss tubes 43, 44 and the receiving tubes 45, 46 are fitted together (for example, forcedly fitted) to integrate the upper and lower cases 37, 38. The upper and lower cases 37, 38 may also be fixed together with screws.

[0058] 7(D), a front engagement groove 47 is formed in the front end of the lower case 38, into which the flange 40a of the front plug holder 40 fits from above. The front plug holder 40 is held immovably upward by the upper case 37. Two power lines are connected to the front plug holder 40, and these power lines branch off from the single power cable 11, just like the power lines for the other plug holders 36.

[0059] The outlet unit 6 is held immovable forward and backward because the upward protrusion 36b of the plug holder 36 is fitted into the square hole 8 of the arm 5, but in this state the retaining member 39 overlaps the lower case 38 from below, so the upper and lower cases 37, 38 and each plug holder 36 are held immovable downward.

[0060] As shown in Figures 6(B) and 7(B), the retaining member 39 has left and right side plates 39a and a front plate 39b and is formed in a gutter shape, with the left and right side plates embracing the lower case 38 from both the left and right sides. The left and right side plates 39 of the retaining member 39 are formed in three steps, from the back, to form an upward low step portion 48, an upward middle step portion 49, and an upward high step portion 50, so that the height changes in a stepped manner, and a compression spring portion 51 formed in the shape of a wire spring is provided by a hole that projects upward from each of the upward step portions 48, 49, 50.

[0061] Meanwhile, recessed portions 38e are formed on the left and right side surfaces of lower case 38, onto which side plates 39a of pressing member 39 overlap, and three downward steps, namely a downward low step 52, a downward middle step 53, and a downward high step 54, are formed on the upper surface of recessed portion 38e, corresponding to steps 48, 49, and 50 of pressing member 39. Therefore, lower case 38 and pressing member 39 are fitted together vertically with their outer surfaces flush with each other.

[0062] The height difference between the steps 48, 49, 50, 52, 53, 54 is set to be slightly greater than the thickness of the arm 5. When attaching the outlet unit 6 to the upper case 37, for example, the upward-facing lower step 48 of the retaining member 39 is placed on the downward-facing middle step 53 of the lower case 38, the outlet unit 6 is inserted into the arm 5, and each plug holder 36 is fitted into the rectangular hole 8 of the arm 5 from below, and then the retaining member 39 is pushed upward and pushed inwards.

[0063] When the retaining member 39 is pushed in all the way, each plug holder 36 fits into the rectangular hole 8 of the arm 5, and the upper and lower cases 37, 38 are held immovable downward over their entire length, holding the outlet unit 6 in a stable state. In this case, because the retaining member 39 is formed with a compression spring 51, the outlet unit 6 can be held in a state without rattle even if there is manufacturing error in each part.

[0064] 7(B), for example, the lower surface of the pressing member 39 is provided with multiple pairs of downward ribs 39c on the left and right, and the downward ribs 39c are set to abut against the lower inner surface of the arm 5. When the downward ribs 39c are provided in this manner, the pressing member 39 abuts against the arm 5 in a line contact manner, which allows the pressing member 39 to be inserted smoothly.

[0065] Furthermore, as shown in Figure 7(D), for example, downwardly opening stopper recesses 38d are formed in the front ends of the left and right side plates 39a of the lower case 38, while spring-shaped stopper pieces 39d that fit into the stopper recesses 38d from below are provided in the front ends of the left and right side plates 39a of the pressing member 39. The fit between these stopper pieces 39d and stopper recesses 38d holds the lower case 38 and the pressing member 39 immovable relative to each other, thereby holding the outlet unit 6 immovable back and forth.

[0066] As shown in Figure 7(C), cap 7 is provided with a rectangular cylindrical foot 55 that is adapted to resiliently fit into the tip of arm 5. As shown in Figure 5(D), protrusions 55a with a mountain-shaped cross section are formed on the outer periphery of foot 55, and protrusions 55a are brought into line contact with arm 5, thereby ensuring secure attachment using elastic force.

[0067] (4) Summary In this embodiment, the plug 13 of the power cable 11 can be connected to an external outlet pulled out from the raised floor or to an external outlet installed on the wall of the building. Because it is portable, it can be carried and used anywhere as needed. Therefore, it is also suitable for offices with a free address system.

[0068] As already mentioned, arm 5 can be made to overhang above table 2, so that the plug of a device such as a laptop computer can be inserted into or removed from plug holder 36 while remaining seated in a chair. Moreover, because sockets 35 of plug holder 36 open upward, all of the plug holders 36 can be used by anyone sitting across from them across table 2, meaning there is no shortage of sockets, making it easy to use (four sockets 35 is practically sufficient).

[0069] Providing a front plug holder 40 as in the embodiment allows it to be used as a spare outlet, making it suitable for use on a desk with a large number of devices. Providing a USB port as the front plug holder 40 also makes it suitable for use with smartphones and tablet devices.

[0070] Furthermore, configuring the underside of the base body 3 as a power cable storage section as in the embodiment is preferable because it allows for neat management of the power cable 11. As shown by the dashed line in Fig. 1(B), a hook 56 can be provided on the support 4 and the power cable 11 can be wrapped around the hook 56 as a means for managing the power cable 11. Alternatively, a void surrounded by a fence can be formed on the top surface of the base body 3, and the power cable 11 can be stored in the void. When using the hook 56 or fence in this way, a cable outlet hole can be opened in a position on the support 4 above the base body 3.

[0071] As in the embodiment, the use of the retaining member 39 to hold the outlet unit 6 in place prevents it from slipping, which is preferable because the outlet unit 6 can be easily attached without using screws. The power supply device 1 of this embodiment can be moved by grasping the arm 5, making it easy to carry.

[0072] The manner in which the power supply device 1 is used is up to the user. Therefore, in order to use the upper surface of the table 2 more widely, it is also possible to use the arm 5 in a position parallel to the side edge of the table 2, rather than having the arm 5 overhang above the table 2. In this case, the plug holder 36 also opens upward, allowing a person to insert or remove the plug while sitting in a chair, which is convenient.

[0073] (5) Second to fifth embodiments Next, second to fifth embodiments shown in Figures 8 and 9 will be described. In the second embodiment shown in Figure 8(A), the support column 4 is arranged in the center of the base body 3, and an outward-facing portion 4a is formed at the top end of the support column 4, with an arm 5 formed at the tip of the outward-facing portion 4a. Therefore, the arm 5 and the outward-facing portion 4a form a horizontal U-shape. In this embodiment, most of the support column 4 is recessed inside the table 2, which has the advantage of preventing the support column 4 from being hit by luggage of people passing by. It also has high stability.

[0074] 8(B), most of the support columns 4 are inclined. In this embodiment, too, most of the support columns 4 can be recessed into the interior of the table 2. In the solid lines, the support columns 4 are attached to the edges of the base body 3, but as shown by the dashed dotted lines, the support columns 4 can also be attached to the center of the base body 3, in which case the entire base body 3 can be recessed into the interior of the table 2.

[0075] As shown in Figure 8(C)(D) First reference example In this example, the support 4 and corners are made of circular pipe, and the arm 5 is formed in a square shape. Specifically, a round pipe is used as the material, and the section corresponding to the arm 5 is first deformed into a square shape using a tool while it is in a straight state, and then bent into an L shape using a bender. Because round pipe can be bent beautifully into an L shape without creating wrinkles, bending can be done easily without compromising the ease of installation of the outlet unit 6.

[0077] Figures 8(E) to 9 In the fourth embodiment shown inis applied to a battery-type power supply device 60. In this embodiment, the base body 3 is in the form of a rectangular tray (box-like) that opens upward, and a bottom plate 61 and casters 62 are attached to brackets 66 provided at the corners of the base body 3. The support posts 4 are fixed to the bottom plate 61 by the same means as in the first embodiment. The internal structure of the arm 5 is the same as in the first embodiment.

[0078] In this embodiment, a buffer plate 63 is disposed on the bottom plate 61 of the base body 3, and a power cable outlet hole 64 is formed in the bottom plate 61 and the buffer plate 63 near the support column 4. The power cable 11 connected to the battery 65 is first pulled out from the cable outlet hole 64 below the bottom plate 61 and then drawn into the support column 4. A resin bushing 67 is attached to the cable outlet hole 64 to protect the power cable 11.

[0079] Forming the base body 3 into a tray shape has the advantage that the battery 65 can be stably held by simply placing it on the base body 3, eliminating the need for fixing means such as a band. Another advantage is that by setting the size to match the largest battery used in the office, it can be used with many different types of batteries of different sizes.

[0080] 9, the support post 4 is located at one end of the base body 3, while the arm 5 is long enough not to protrude from the base body 3 in a plan view. Also in this embodiment, the plug holder 36 opens upward, so that anyone sitting across from the table 2 can freely use the outlet, and power can be supplied to each device used on the desk without the arm 5 having to be excessively long (usually, four outlets is sufficient, and if necessary, the number of outlets can be increased by using a bifurcated socket).

[0081] It is also possible to place objects on the battery 65 placed on the base body 3, or to place objects on the blank area of ​​the base body 3 where the battery 65 is not placed. When not using the device as a power supply device without the battery 65, it can also be used as a cart for placing objects.

[0082] (6). 5~8 Embodiments and Reference Examples As shown in Figure 10(A) Second reference example In this embodiment, the base 3 is made of a square pipe and is U-shaped in plan view. That is, the base 3 is formed into a frame structure in which one end of a pair of parallel parts is connected by a stay part. A support 4 is erected from the middle part of the stay part of the base 3. The structure of the outlet unit 6 is the same as that of the first embodiment. Reference example In the example, a hook 56 for winding up the cable is provided on the support 4. The power cable 11 is drawn out below the base body 3, but it may also be drawn out to the side from a hole or notch provided in the lower part of the support 4.

[0083] As shown in Figure 10(B) Third reference example In the , the base 3 has a frame structure in which a ring body that forms the outer periphery and a circular plate located in the center are connected by multiple stays, and a cylindrical support 4 is erected on the central circular plate. The circular plate is set higher than the ring body, and has a cable insertion hole in the center. Reference example However, a hook 56 is provided on the support 4.

[0084] As shown in Figure 10(C) 4th reference example In this model, two support posts 4, one at the front and one at the back, are used, and an open-topped U-shaped holder 5' is attached to the tip of the beam-like portion attached to the upper end of each support post 4, with the front and rear holders 5' supporting the outlet unit 6. The front and rear support posts 4 are connected by stays. The base 3 is formed in an H-shape in plan view by bending the lower end of the support post 4 horizontally and connecting the two with a stay.

[0085] The outlet unit 6 can be a commercially available table tap-type product, or it can be a square pipe with a built-in case, as in the first embodiment. The front and rear holders 5' can also be joined together to form a channel. The outlet unit 6 can also be made detachable.

[0086] As shown in Figure 10(D) 5th reference example In the figure, the base 3 is formed in an H-shape in plan view, with the middle parts of two parallel first members extending left and right being connected by a single second member extending front and back. A cylindrical support post 4 is erected from the middle part of each of the first members, and a pair of outlet units 6 are attached to plate-shaped holders 5' provided at the upper ends of the posts so that they can rotate horizontally around the axis of the support post 4.

[0087] In Figure 10(D), the outlet unit 6 is set to rotate within a range of 180°. Therefore, the outlet unit 6 can be positioned either along the side edge of the tabletop 1 or overhanging above the tabletop 1. It is also possible to place the outlet units 6 side by side between tables, with one outlet unit 6 extending above both tables.

[0088] As shown in Figure 10(E) No. 6 In the reference example, the holder 5' to which the outlet unit 6 is attached is of a clamp type that is fixed to the edge of the top plate 2. That is, the holder 5' is in the form of a plate that overlaps the upper surface of the top plate 2 and to which the outlet unit 6 is fixed, and an L-shaped clamp part 69 having a lower horizontal piece that is positioned below the top plate 2 is formed integrally with the side edge, and a fixing knob screw 70 is screwed into the lower horizontal piece of the clamp part 69 from below. Therefore, the holder 5', including the clamp part 69, is U-shaped when viewed from the front.

[0089] This reference example has a very simple structure as it does not have a support or base, and the outlet unit 6 is fixed to the top panel 2, so the desk can be used in a neat and tidy state. It also has the same effect as the support system. This reference example In the example, a pair of clamp portions 69 are provided, one at the front and one at the rear, and a notch 71 is formed in the vertical piece, so that the power cable 11 can be wound around the front and rear clamps 69.

[0090] As shown in Figure 10(F) SeventhIn the reference example, a plate-shaped holder 5' having a downward hanging portion 5a is fixed by welding to a U-shaped clamp portion 69. In this reference example, the outlet unit 6 is placed above the tabletop 2, which has the advantage of allowing for a wider use of the desk surface. There may be only one clamp portion 69, or multiple clamp portions 69 may be placed at the front and rear.

[0091] The outlet unit 6 is in a longitudinal position extending along the side edge of the top plate 2, but it can also be configured to be elongated in the left-right direction perpendicular to the side edge of the top plate 2, as shown by the dotted line (this also applies to the reference example (E)).

[0092] Although the preferred embodiment of the present invention has been described above, the present invention can be embodied in various other ways. For example, two arms can extend in opposite directions from the top of a support pole to form a T-shape overall. In this case, the power supply device can be placed between tables spaced apart on the left and right, with the arms extending above the two tables, or the arms can be positioned to extend along the side edges of the tables. Furthermore, the plate-shaped base body can have various shapes, such as an angular or elliptical shape in plan view. [Industrial Applicability]

[0093] The present invention can be embodied in a portable power supply device and is therefore industrially applicable. [Explanation of symbols]

[0094] 1 Power supply device 2 tables 3 Plate-shaped base body 4 pillars 5 Arm (holder) 6 Outlet Unit 7 Cap 8 square hole 9 Inward rib 10 Grounding body 11 Power cable 35 Outlet 36 Plug holder 37 Upper Case 38 Lower case 39 Holding member 60 Battery-powered power supply device 65 Battery

Claims

1. The device has a base body that can be stably placed on a floor surface, a hollow support column that stands up from the base body, and a hollow arm that extends in a cantilevered manner from an upper end of the support column, The support pole is set at a height higher than a top surface of a table, and the arm is capable of being placed above the table. The base body is formed in a plate or frame shape, and the support column and the arm are integrally formed by bending a square pipe. A socket unit into which a plug can be inserted and removed from the outside is built into the arm, and a power supply cable connected to the socket unit is passed through at least a part of the support pole. Portable power supply device.

2. The base body is circular in plan view. The portable power supply device according to claim 1.

3. The device has a base body that can be stably placed on a floor surface, a hollow support column that stands up from the base body, and a hollow arm that extends in a cantilevered manner from an upper end of the support column, The support pole is set at a height higher than a top surface of a table, and the arm is capable of being placed above the table. The base body is formed in a plate or frame shape, and the support column and the arm are integrally formed by bending a square pipe. A socket unit into which a plug can be inserted and removed from the outside is built into the arm, and a power supply cable connected to the socket unit is passed through at least a part of the support pole. Portable power supply device.

4. The base body is provided with casters. The portable power supply device according to claim 3.

5. The support posts are offset to the edges of the base body, while the arm is oriented so as to pass through an axis of the base body in a plan view, and has a length set so that the arm hardly or not at all protrudes outside the base body in a plan view, and a plurality of sockets of the outlet unit are open on the upper surface of the arm. A portable power supply device according to any one of claims 1 to 4.

6. A device comprising: a base body that rests stably on a floor surface; a hollow support pillar that rises from the base body; and a hollow arm that extends in a cantilevered manner from the upper end of the support pillar; The support pole is set at a height higher than a top surface of a table, and the arm is capable of being placed above the table. The base body is formed in a plate or frame shape, and the support and the arm are integrally formed by bending a square pipe. An inward rib is formed at the inner corner of the corner where the support and the arm are connected, extending from the base of the arm toward the upper end of the support, A socket unit into which a plug can be inserted and removed from the outside is built into the arm, and a power supply cable connected to the socket unit is passed through at least a part of the support pole. Portable power supply device.

7. One end surface of the outlet unit is exposed at the open end of the arm, and a plug socket is also provided on the one end surface of the outlet unit. A portable power supply device according to any one of claims 1 to 6.

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