JP2023067224A - Portable feeding device - Google Patents

Abstract

To disclose a technology capable of securely fixing even a thin strut to a base body and facilitating assembly, in a portable feeding device used while being attached to a table.SOLUTION: A feeding device 1 has a base body 3 placed on a floor, a strut 4 that is 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 a table 2, and an outlet unit 6 is built in the arm 5. The strut 4 is fixed to the base body 3 with an upward screw 21, and is fixed to a pair of joints 20 with lateral screws 22. On a fitting surface of the pair of joints 20, a space through which a power supply cable 11 passes is bored. The pair of joints 20 are the same articles, and held so as not to deviate by fitting an engaging projection 27 and an engaging groove 28.SELECTED DRAWING: Figure 4

Description

TECHNICAL FIELD The present invention relates to a portable power supply device (outlet unit) used in an office or the like.

2. Description of the Related Art Electronic/electrical devices such as laptop computers and projectors are frequently used in various places such as offices, homes, and stores, and power is generally supplied to these electronic/electrical devices from outlets. Examples of outlets include a fixed type provided on a wall, a table tap type provided on an extension cord, and a type fixedly provided on fixtures such as desks and partitions.

In recent years, as a working style in the office, the free address system without fixed seats is spreading, but in this free address system working style, a simple type of table is often used with emphasis on flexibility. Therefore, power strips are often used as power sources for laptop computers. It is pulled out and connected to the tip of the table tap, but in this method, since the table tap is placed on the floor, there are problems such as poor flexibility and an unattractive appearance.

Therefore, a portable power supply device that can stand on the floor and can be carried anywhere has been proposed. A stand type is disclosed in which an outlet is provided on the side surface of the device.

Japanese Patent Application Laid-Open No. 2002-110302

In Patent Literature 1, the rectangular, duct-shaped mast also has a portion fixed to the base body, and the power cable is pulled out from the fixed portion of the mast to below the base body. In addition, although Patent Document 1 does not explain how the fixed part of the mast is fixed to the base body, for example, a method of fixing the fixed part and the base body by welding, A method of welding the bracket plate to the base body and screwing the fixing portion to the bracket plate may be considered.

Therefore, the method of fixing directly by welding has the problem that the work is time-consuming, the problem that the build-up part is exposed to the outside and it looks bad even if it is painted, or the base body is synthesized. There is a problem that it cannot be applied if it is made of resin. There is also the problem that the base body and mast cannot be replaced.

On the other hand, screwing using a bracket plate has the problem that it takes time to weld the bracket plate to the base body, or that it cannot be applied if the base body is made of synthetic resin, or that screwing between plate materials is not strong. There is a problem that it may not be possible to conclude a contract.

In addition, when the mast is quite large like the mast of Patent Document 1, it can be said that the bracket plate method can stably fix the mast because the flat area is large. When a post such as a square pipe is erected on the base body, the bracket plate method may not be able to accurately prevent slippage between the bracket plate and the post, making it difficult to secure a high fixing strength.

The present invention has been made against the background of such a situation, and relates to a portable power supply device that can be conveniently carried anywhere. is to be disclosed.

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
"Having a base body that rests on the floor, a hollow pillar standing up from the base body, and a power feeding part provided at the upper end of the pillar,
The post is fixed with a screw to a block-shaped joint fixed to the base body, and the joint has a space for allowing a power cable to pass through. There is a cable insertion hole that pulls the power cable downward."
It is configured.

In addition, the block shape specified in the present invention means that it is not plate-like but has a block-like appearance having a thickness into which screws are screwed, and a recess may be formed on the outer periphery. . The joint can be made of metal such as aluminum die-cast or made of synthetic resin, but if it is made of synthetic resin, it is also possible to fit a nut and screw a screw into it.

The invention of claim 2 is a development example of claim 1,
"The joints form a pair so as to overlap in the horizontal direction, and a space that allows the power cable to pass through is formed on the opposing surfaces of the pair of joints,
Further, the pair of joints are fixed to the base body and the strut with separate screws."
It is configured.

The invention of claim 3 is a development example of claim 2,
"The pair of joints have the same shape, and are formed with vertically long engaging projections on one longitudinal side edge of the opposing surfaces, and vertically long engaging grooves on the other longitudinal side edge. and the engagement projection of one joint and the engagement hole of the other joint are fitted.”
It is configured.

The invention of claim 4 is a development example of claim 3,
"A female threaded hole opening downward is formed at least in the side portion of the pair of joints where the engaging projection is provided, and a screw penetrating from below the base body is screwed into the female threaded hole."
It is configured.

The invention of claim 5 embodies any one of claims 2 to 4,
"A gutter-shaped portion for gripping the power cable is protruded downward from the lower ends of the pair of joints, and the gutter-shaped portion is tightly fitted into a cable insertion hole provided in the base body. ”
It is configured.

Since the joint of the present invention is block-shaped, it can be screwed with high strength to the base body and the struts by increasing the contact area with the base body and the struts. Therefore, even a post with an outer dimension of several centimeters can be fixed to the base body with high strength. This makes it possible to provide a slim portable power supply device with a robust structure. In addition, since the joints are screwed to the base body and the struts, welding work is not required, which reduces the labor required for assembly, and at the same time, the struts and the base body can be easily replaced. In addition, since the joint can be formed according to the shape of the strut, there is an advantage that it can be applied to struts of various shapes.

A single structure can also be adopted for the joint, but if a system in which the two are separated as in claim 2 is adopted, each joint can be strongly attracted to the column by screwing in screws, which is advantageous in terms of fixing strength. is. In addition, when assembling the power supply device, the power cable pulled out from the support can be sandwiched and then inserted into the support, so there is no need to work to pass the power cable through the joint, and workability can be improved accordingly. It is also possible to hold the power cable in a state where it does not flutter with a pair of joints.

In the structure of claim 3, while the joints are separated into a pair, they can be integrated in a state in which they are not displaced by fitting the engaging projections and the engaging grooves. By integrating the joints, it is possible to contribute to improving the fixing strength of the column.

In the structure of claim 4, since the female threaded hole of the joint is formed in the portion where the engaging projection is provided, the vertical length of the female threaded hole can be increased (it can be opened over the entire vertical length). .). Therefore, even with a single screw, the joint can be firmly fixed to the base body using a long screw.

In the structure of claim 5, since the power cable is gripped by the joint, even if the exposed portion of the power cable is pulled for some reason, it is possible to prevent the pulling force from acting on the portion hidden inside the support. . Therefore, it is possible to prevent the power cable from coming off from the outlet unit or causing poor contact.

Also, if there is too much play in the power cable inside the pillar, the power cable may dance when carrying the power supply device, and may hit the inner surface of the pillar and make noise. Since the power cable can be held in a tensioned state inside, there is also the advantage that the power cable can be prevented from dancing and abnormal noise can be prevented.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows the first embodiment, (A) is an overall perspective view of the power supply device in use, (B) is a side view of (A) taken along line BB, and (C) is a plan view. (A) is a perspective view of the power supply device as seen from below, (B) is a bottom view, (C) is a sectional view taken along line CC of (A), and (D) is a bottom perspective view of another example. (A) is a perspective view in which the strut is separated, and (B) is a perspective view in which the joint is also separated. It is a figure for mainly demonstrating a joint, (A) is the isolation|separation perspective view seen from upper direction, (B) is the isolation|separation perspective view seen from the downward direction.

(1). Basic Structure Next, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, the power supply device 1 is used by being placed on the outer periphery of a table 2 (generally on the left or right short side). , a support 4 rising from the edge of a base body 3, and an arm 5 bent horizontally from the upper end of the support 4. - 特許庁The column 4 is set at a height higher than the upper surface of the top plate 2a of the table 2, and the arm 5 extends so as to bisect the base body 3 in plan view. The arm 5 can also be called an arm-shaped holder.

Therefore, by inserting the base body 3 into the table 2 , the arm 5 can be arranged in a state of overhanging above the table 2 . As shown in FIG. 1(C), the arm 5 is dimensioned so that the tip does not protrude outside the base body 3 in a plan view. The base body 3 is made of metal plate or synthetic resin.

In the following description, terms such as front-rear and left-right are used to specify directions, and the longitudinal direction of the arm 5 is defined as the front-rear direction, and the horizontal direction orthogonal to the longitudinal direction of the arm 5 is defined as the left-right direction. The front and the rear are defined so that the side of the free end of the arm 5 is the front and the side of the strut 4 is the rear.

The strut 4 and the arm 5 are integrally formed by bending a steel square pipe into an L shape, and the arm 5 incorporates an outlet unit 6 shown in FIG. 1(C). A tip of the arm 5 is closed with a cap 7 . The outlet unit 6 is of a four-port type, and four rectangular openings 8 are formed in the upper surface of the arm 5, and upward projections 6a formed on the outlet unit 6 are fitted into the openings 8. A pair of insertion openings 6b are formed in 6a. Since the structure of the outlet unit 6 is not directly related to the present invention, detailed description thereof will be omitted.

As shown in FIGS. 2(A) and 2(C), an inward rib 9 extending from the base end of the arm 5 toward the upper end of the support 4 is formed on the inner angular surface of the corner where the arm 5 and the support 4 are connected. ing.

As shown in FIGS. 2A and 2B, four grounding members 10 are arranged in a circumferential direction on the lower surface of the base member 3 and fixed to the lower surface of the base member 3 by means of screws, adhesion, or the like. ing. The grounding member 10 is made of synthetic resin, and the outward surface is formed in an arcuate shape with a radius of curvature slightly smaller than that of the outer peripheral surface of the base member 3, and the inward surface facing the center of the base member 3 is formed into a flat surface. It is

A groove 12 into which the power cable 11 can be wound is formed on the outward surface of the grounding member 10, and a pair of grooves 12 into which the terminals of the plug 13 connected to one end of the power cable 11 can be inserted is formed on the inward surface. dummy insertion port 14 is formed. Therefore, when the power supply device 1 is not used, the power cable 11 is wound in the recessed groove 12 of the group of grounding bodies 10, and the plug 13 is connected to the dummy insertion port 14 of one of the grounding bodies 10. The power cable 11 is held in a state where it does not come apart.

Although the grounding member 10 is made of synthetic resin, it has a certain thickness. Therefore, a large number of ribs 15 extending in the circumferential and radial directions are formed to reduce the weight and maintain the thickness. In addition, as shown in FIG. 2A, the inward side surface of the grounding member 10 is curved outward on both sides of the dummy insertion port 14, and the power cable 11 can be placed on the lower end of this curved portion. A receiving portion 10a is provided. The cable receiving portion 10a is provided with an upward dam piece 10b for preventing the power cable 11 from slipping down.

The number of grounding bodies 10 can be set arbitrarily. In the modification shown in FIG. 2D, eight grounding members 10 are arranged in the circumferential direction. If the number of grounding members 10 is reduced, the length of the recessed groove 12 can be lengthened, and the winding device comprising the group of grounding members 10 can be formed in a shape similar to that of a drum. A slight gap 16 is provided between adjacent grounding bodies 10 . When using the power supply device 1 , the power cable 11 can be pulled out from the gap 16 between the adjacent grounding bodies 10 .

As shown in FIGS. 2A, 2B, and 2D, a cable insertion hole 17 penetrating vertically is formed in a portion of the base body 3 below the column 4. As shown in FIGS. Since the strut 4 is provided on the periphery of the base body, the cable insertion hole 17 opens into the gap 16 between the two adjacent grounding bodies 10 .

(2) Strut Connection Structure As shown in FIGS. 3 and 4, the strut 4 is connected to the base body 3 via a pair of front and rear joints 20 that overlap laterally. That is, the joint 20 is fixed to the base body 3 by screwing the upward screw 21 inserted through the base body 3 from below into the joint 20, and by screwing the lateral screw 22 passed through the column 4 from the side into the joint 20, The strut 4 is fixed to the joint 20 .

Accordingly, screw insertion holes 23 and 24 are opened in the base body 3 and the strut 4, respectively, and the joint 20 has a vertical female threaded hole 25 into which the upward screw 21 is screwed and a laterally elongated female screw hole 25 into which the horizontal screw 22 is screwed. A female screw hole 26 is formed.

The joint 20 is formed in a box-like shape and has a block-like appearance when overlapped, and longitudinally long engaging projections 27 and engaging grooves 28 are separately formed in overlapping longitudinal side edges. The pair of joints 20 have the same structure, but the pair of joints 20 are positioned inside the column 4 by fitting the engaging projections 27 of one joint 20 and the engaging grooves 28 of the other joint 20 . It is held immovably.

The opposed portions of the joint 20 are recesses through which the power cable 11 passes, and the recesses are formed with a cross-shaped rib 29 and a cylindrical boss 30 for forming the oblong female threaded hole 26 . An inward notch 31 is formed at the upper end of the joint 20 for the power cable 11 to pass through.

In addition, on the lower surface of the joint 20, half-split gutter-shaped portions 32 that overlap each other and hold the power cable 11 are projected downward. They are tightly fitted. Therefore, the gutter-like portion 32 also has a function of positioning the joint 20 with respect to the base body 3 .

Since the power cable 11 is gripped by the pair of gutter-shaped parts 32, the power cable 11 can be held in a stretched state inside the support. Therefore, when the power supply device 1 is carried, the power cable 11 swings inside the column 4 and rattles, and the power cable 11 is damaged when a pulling force acts on the power cable 11 from the outside. Also, the power cable 11 does not come off from the outlet unit 6.

The opposing portions of the pair of joints 20 are spaces for the power cable 11 to pass through, but since the joints 20 are fixed to the pillar 4 with one horizontal screw 22 each, the horizontal screw 22 is installed so that the power cable 11 can pass through. It does not traverse the space through which it passes. Therefore, the sideways screw 22 does not interfere with the power cable 11 . In addition, since the joints 20 are each attracted to the inner surface of the column 4 by the sideways screws 22, the fixing strength between the column 4 and the joints 20 can be improved.

The joint 20 is fixed to the base body 3 with a single upward screw 21. However, the vertically elongated female threaded hole 25 is formed in the portion where the engaging projection 27 is provided and penetrates vertically. can use long ones. Therefore, the joint 20 can be firmly fixed to the base body 3 while being fixed by the single upward screw 21 . It is possible to fix the pair of joints 20 to the base body 3 with two upward screws 21, respectively.

There are screw insertion holes 24 in the front and rear wall plates of the column 4, but as can be understood from FIG. Therefore, an outward notch 33 is formed in the upper surface of the portion of the joint 20 facing the strut 4 to allow the burring portion to escape when the strut 4 is fitted. In addition, vertically elongated grooves 33a are formed on both left and right sides of the outward notch 33. As shown in FIG. Therefore, the joint 20 is in contact with the inner surface of the column 4 via four longitudinal ribs.

In this embodiment, the power cable 11 may be connected to an external outlet pulled out from the double floor, or may be connected to an external outlet provided on the wall of the building. Since it is portable, it can be carried and used anywhere as needed. Therefore, it is also suitable for free-address offices.

As already mentioned, since the arm 5 can be overhanged above the table 2, the plug of a device such as a notebook computer can be inserted into and removed from the socket 6b while sitting on a chair. In addition, since the outlets 6b of the outlet unit 6 are open upward, any person facing across the table 2 can use all the outlets 6b. It's easy to use.

Although the embodiments of the present invention have been described above, the present invention can be embodied in various other ways. For example, it is possible to configure the struts from round pipes, and in this case, the joints are formed in a semicircular shape in plan view. Of course, various shapes such as regular hexagons and ellipses can be adopted for the struts, and the joints may also be formed in a shape that matches the shape of the struts. Also, the joint can be screwed to the pillar at a plurality of upper and lower positions.

The plan view form of the base does not have to be circular, and various forms such as square, hexagon, and ellipse can be adopted. It is also possible to fix the post to the central part of the base body. Furthermore, although the embodiment is a system in which a long power cable is used to connect to an external power supply, the present invention can also be applied to a portable power supply system in which a battery is mounted on the base body. In this case, the base body can be configured in the shape of a tray (box shape) that opens upward to which the battery can be attached and detached. should be fixed.

The present invention can be embodied in a portable power feeder. Therefore, it can be used industrially.

REFERENCE SIGNS LIST 1 feeding device 3 base body 4 post 5 arm (holder)
6 outlet unit 10 grounding body 11 power cable 20 joint 21 upward screw 22 sideways screw 23, 24 screw insertion hole 25, 26 female screw hole 32 gutter-shaped portion (cable holding portion)

Claims (5)

a base body that rests on a floor, a hollow post that rises from the base body, and a power supply section that is provided at the upper end of the post;
The post is fixed with a screw to a block-shaped joint fixed to the base body, and the joint has a space for allowing a power cable to pass through. There is a cable insertion hole that pulls the power cable downward,
Portable feeder. The joints form a pair so as to overlap in the horizontal direction, and a space for allowing the power cable to pass through is formed on the opposing surfaces of the pair of joints,
and the pair of joints are fixed to the base body and the strut with separate screws, respectively.
The portable power supply device according to claim 1. The pair of joints have the same shape, and are formed with vertically long engaging projections on one longitudinal side edge of the opposing surfaces and vertically long engaging grooves on the other longitudinal side edge. and the engagement projection of one joint and the engagement hole of the other joint are fitted,
The portable power supply device according to claim 2. A female threaded hole opening at least downward is formed in a side portion of the pair of joints on which the engaging projection is provided, and a screw penetrating from below the base body is screwed into the female threaded hole.
The portable power supply device according to claim 3. At the lower ends of the pair of joints, a gutter-shaped portion for gripping the power cable is protruded downward, and the gutter-shaped portion is tightly fitted into a cable insertion hole provided in the base body.
A portable power supply device according to any one of claims 2 to 4.

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