JP2021128873A - Power tap - Google Patents

Abstract

To solve a problem in which an outlet of a table tap is occupied by a device having a wide width in the vertical and horizontal directions such as an AC power adapter, and a plug cannot be inserted even though the outlet is open.SOLUTION: In a power tap, one or more outlets are composed of a rotary outlet 3, a fixed outlet 6, and metal wirings 91 and 92, and one rotary outlet 3 has two outlets and one fixed outlet 6 has four outlets, the rotary outlet 3 is arranged above the fixed outlet 6, and the rotary outlet 3 rotates such that one of two pairs of outlets facing each other of the fixed outlet 6 is selected, the metal wiring 91 is arranged such that two receiving blades of the outlet are perpendicular to each other, and the metal wiring 92 is arranged such that the two receiving blades of the outlet are perpendicular to each other, the metal wirings 91 and 92 are arranged in pairs to form an outlet in which the four receiving blades face each other, and the metal wirings 91 and 92 are separated by an insulator.SELECTED DRAWING: Figure 2

Description

The present invention relates to a power strip that can be efficiently plugged into an outlet even with a wide instrument such as an AC adapter power supply.

With the increase in household appliances, it is common to connect a wall outlet to a power strip with an extension cord and connect a large number of AC power adapters and 100V AC power plugs. In recent years, the number of DC devices that use AC power adapters to generate DC power such as USB has increased, and it has become necessary to connect AC power adapters of various shapes and sizes to power strips. There is.

Utility model registration No. 3191623

Since the AC power adapter has a transformation rectification function, it occupies a wider width and length than a normal 100V power plug, and when it is inserted into a table tap outlet, it occupies the area up to other outlets, and the outlet is vacant. However, it is easy to get into a situation where it cannot be used. It is conceivable to install a long blade holder on the side as in the cited document so that the plug can be inserted continuously so that the AC power adapter can be inserted more efficiently, but depending on the orientation of the plug of the AC power adapter. There is a problem that the AC power adapter occupies the blade holder in a wide range, and the plug cannot be inserted efficiently.

The present invention relates to a power strip that can be efficiently inserted into an outlet even in a wide device such as an AC power adapter by making the direction of the outlet of the table tap rotatable in the vertical and horizontal directions. Is. In the present application, the term outlet includes the outlet of the power strip for receiving the blade of the plug, the receiving blade, the electrical wiring connected to the receiving blade, and the necessary housing. In addition, the term power strip includes a table tap with an extension cord and a tap without an extension cord and having a plug or outlet for connecting to a separately prepared extension cord. It can also include a tap that is embedded in the wall as a wall outlet.

With the power strip of the present invention, even devices with a large vertical and horizontal width such as an AC power adapter can be efficiently inserted into the table tap, and it is possible to prevent accidental insertion of a different plug, and metal foreign matter, dust, etc. can be inserted into the outlet hole. It is possible to prevent the line from being short-circuited by invading from.

FIG. 1 is an appearance of a power strip of the present invention. A is from the top, B is from the bottom, and C is from the side. FIG. 2 is a view of the power strip of the present invention viewed from above, and FIG. 2A is the same as that of FIG. 1, but the directions of the left and right outlets are aligned in the center. In B, the rotary insertion port 3 is removed so that the fixed insertion port 6 can be seen. C indicates the metal wiring configuration including the receiving blade of the outlet. FIG. 3 is an enlarged view of one set of outlets for the metal wiring portion of the power strip of the present invention, and A is a set of outlets in the vertical direction and a set of outlets in the horizontal direction. , Insulator 101 is shown. B shows the configuration when one metal receiving blade is viewed from the side. C shows the shape of the receiving blade seen from the BB direction when cutting on the AA surface of B, and the upper part is slightly open because the plug blade is inserted into the gap 90, and the plug blade is pressed from both sides. It is composed. FIG. 4 shows a situation in which the rotary insertion port 3 and the fixed insertion port 6 of the power tap of the present invention are connected by a screw 81. The fixed insertion port 6 is fixed to the outer housing of the main power tap 1. FIG. 5 shows the configuration of a conventional table tap. In FIG. 5, three sets of plugs are constructed.

FIG. 1 is an appearance of the power strip 1 of the present invention, and A shows a configuration seen from above. The cable 2 is connected to a wall outlet or the like to supply power to the main power strip. By rotating the rotation outlet 3 around the central axis of the circle in the plane of the drawing, the outlet of the outlet can be directed in the vertical direction or the horizontal direction. In A, the central rotation outlet 3 faces the outlet outlet in the horizontal direction, and the left and right rotation outlets 3 are in the vertical direction. Reference numeral B is a configuration viewed from the lower surface of the power strip 1 of the present invention, and has a screw hole 4. C shows a configuration of the power strip 1 of the present invention viewed from the lateral direction, and is composed of an upper housing 11 and a lower housing 12. The cable 2 may be replaced by a plug or an outlet for connecting to an external extension cable, or may be replaced by a plug-in connector used for indoor wiring because it is embedded in the wall surface as a wall outlet.

FIG. 2 shows the inside of the power strip 1 of the present invention when viewed from above, and A is the same as in FIG. 1, but all three rotation outlets 3 are aligned in the horizontal direction. The two outlets 51 and 52 are for inserting the blades of two opposing plugs of AC100V system 15 amperes or less. Can be changed horizontally. Reference numeral B denotes a situation in which the power tap of the present invention with the rotary insertion port 3 removed is viewed from above, and the fixed insertion port 6 is visible. The fixed outlet 6 is opened with two sets of outlets 71 and 74 facing each other and four outlets 72 and 73, and two blades of the plug are of the opposite outlets. It is plugged into one of the pairs. A hole 8 for connecting the rotary insertion port 3 is formed in the center of the fixed insertion port 6.

C indicates the electrical wiring inside the power strip 1 of the present invention, and the power cable 2 on the left side is connected to a wall outlet or the like to supply power to the power strip 1 of the present invention. The two wires of the power cable 2 are separated, one connected to the metal wiring 91 and the other connected to the metal wiring 92. The metal wiring 91 and the metal wiring 92 are for supplying electric power to each outlet, and supply electricity to a plug inserted through a receiving blade formed in a gap 90 of each outlet portion. The metal wiring 91 and the metal wiring 92 are fixed to the lower housing 12 by the insulators 101 and 102 so as not to come into direct contact with each other. The power cable 2 can be replaced with a plug, an outlet, a plug connector, or the like connected to an external power source.

The metal wiring 91 and the metal wiring 92 form an outlet with two pairs of blades facing each other per outlet. For each outlet, one receiving blade (for example, the leftmost gap 90 on the metal wiring 91 at C) and one adjacent blade (for example, the leftmost downward gap 90 of the metal wiring 91) are attached to each other as shown in the figure. It is integrally molded with metal in the perpendicular direction, and this is repeated for the number of outlets. Similarly, the metal wiring 92 is also integrally molded with metal in two receiving blades in a direction perpendicular to each other per one outlet, and is isolated from the other receiving blade by insulators 101 and 102. The size of the plug is typically 13 mm between the two blades, 6 mm in the width of each blade, 1 mm in the thickness of the blade, and 16 mm in the length of the blade. The size of the receiving blade of the fixed insertion port 6, the metal wiring 91, and the metal wiring 92 is determined. Although it has been described that the receiving blades and the like of each of the metal wiring 91 and the metal wiring 92 are integrally molded with metal, of course, each of them may be molded with individual metal and connected with wiring.

In FIG. 2, the outlets 51, 52, 71, 72, 73, 74, the gap 90 is 6 mm in length and about 1 mm in width, the distance between the opposing outlets is about 13 mm, from the upper surface of the power strip 1 of the present invention. The distance to the lower surface is 16 mm or more. Although three rotary outlets 3 are shown in FIG. 2, only one outlet in the center is used as the rotary outlet 3, and the other two are used as the conventional two-blade outlets shown in FIG. Eliminate the rotary outlet 3, leave the solid outlet 6 only for the horizontally or vertically opposed outlets, leave only one of the vertical or horizontal gaps for the metal wiring 91, 92, and the receiving blade, as before. It is also possible to use a fixed outlet. Further, although there are three outlets in FIG. 2, as a configuration of four outlets, five outlets, seven outlets, etc., a rotating outlet 3 and a necessary fixed outlet 6, metal wiring 91, etc. are used for all or some of the outlets. 92 can be formed, and a part of the outlet can be a fixed outlet (fixed in the vertical direction or the horizontal direction). The outlets on both ends of the power strip in the long direction can be released to the outside even if a long AC outlet is inserted, so the distance between the outlets does not matter much compared to the central outlet. there is a possibility. For this reason, it is meaningful that the outlets at both ends are fixed two-blade outlets as in the conventional case, and the other inner outlets are the rotary outlets 3. The term "rotary insertion port 3" here means that two sets of opposed blades are formed by the rotary insertion port 3, the fixed insertion port 6, and the metal wirings 91 and 92.

FIG. 3 is an enlargement of one outlet of the electrical wirings 91 and 92. In A, four gaps 90 surrounded by metal wirings 91 and 92 are shown, and plug receiving blades are formed in the gaps 90, respectively. The receiving blade formed in the gap 90 on the metal wiring 91 and the receiving blade formed in the other gap 90 adjacent to one of them are formed on the metal wiring 91 so as to be perpendicular to each other, and the gap on the metal wiring 92. The receiving blade formed in 90 and the receiving blade formed in the other gap 90 adjacent to one of the receiving blades 90 are formed on the metal wiring 92 so as to be perpendicular to each other. The gap 90 is formed for inserting the two blades of the plug, and receives the blade of the plug by the receiving blade to supply electric power. Reference numeral B is a side view of one receiving blade formed in the gap 90, and the blade of the plug is inserted from the direction of AA downward in parallel with the paper surface. The cross section seen from BB at the position of AA has the shape shown in C, and the receiving blade is formed in the gap 90 and the upper part is slightly open, so that the blade of the plug can be easily inserted from above perpendicular to the paper surface, and from both sides. It is easy to hold by pressing the blade of the plug.

FIG. 4 shows the connection status of the rotary insertion port 3 and the fixed insertion port 6, and shows a cross section of the upper housing 11 of the power tap 1 of the present invention. The rotary insertion port 3 is connected to the screw hole 8 of the fixed insertion port 6 by a screw 81. As a result, the rotary insertion port 3 is rotated to select one of the two opposing sets of insertion ports of the fixed insertion port 6. As a mechanism for rotating the rotation insertion port 3, the surface of the rotation insertion port 3 can be made uneven so that a finger can be easily hooked, or a protrusion can be provided in the circumferential direction of the rotation insertion port 3. Further, a protrusion is provided near the circumference of the back surface of the rotation insertion port 3 so as to limit the rotation angle within 90 degrees, and a groove is provided on the surface of the fixed insertion port 6 near the circumference of the central angle of 90 degrees. By configuring this groove so that the protrusion attached to the back surface of the rotation insertion port 3 passes through, the rotation angle of the rotation insertion port 3 can be set to 90 degrees or less. This groove may be attached to the rotary insertion port 3 and a protrusion may be attached to the fixed insertion port 6. Furthermore, using the spring, protrusion, and groove set between the rotary insertion port 3 and the fixed insertion port 6 so that the rotary insertion port 3 is limited to the vertical direction and the horizontal direction only, the degree is set to 0 degrees (horizontal position). It can be configured so that the rotation outlet 3 is stable only at the position of 90 degrees (vertical position). Although the configuration in which the rotary insertion port 3 and the fixed insertion port 6 are connected by a screw 81 is shown, the rotary insertion port 3 and the fixed insertion port 3 and the fixed insertion port are shown along the circumference of the rotary insertion port 3 by a groove and a protrusion. 6 can also be connected. Further, the rotation insertion port 3 is connected to the upper housing 11 by a known method such as fitting a protrusion in the circumferential direction of the rotation insertion port 3 into the groove of the upper housing 11, and the rotation insertion port 3 is directly connected to the upper housing 11. 3 may not be connected to the fixed outlet 6.

It is necessary that the rotary outlet 3 is formed on the upper part of the fixed outlet 6, which ensures that the unused outlet on the opposite fixed outlet 6 is closed. This makes it possible to prevent accidents caused by accidentally inserting plugs of different shapes, prevent accidents such as short circuits caused by foreign matter entering the vacant insertion port, and help prevent accidents such as tracking.

FIG. 5 shows the configuration of a conventional table tap, in which A is the appearance of the upper surface of the table tap, and three rows of outlets 51 and 52 facing the upper housing 11 are shown. B indicates the metal wiring inside the conventional table tap, and as shown in the figure, the metal wiring 91 and the metal wiring 92 are connected to the two electric wires of the cable 2, respectively, and are provided on the metal wirings 91 and 92. The receiving blade provided at the position of the gap 90 is set to receive the blade of the plug into which the blade is inserted. In FIG. 5, three sets of plugs are constructed. In the present application, the conventional table tap outlet shown in FIG. 5 is referred to as a fixed outlet.

It is used as an instrument that has the functions necessary to efficiently insert an AC power adapter or the like into a power strip. This mechanism can also be used for wall outlets, and the orientation of the outlets can be changed so that the wall outlets can be used efficiently. With a simple structure, an outlet that can be changed in the vertical and horizontal directions can be realized, and a highly convenient power tap can be realized at a low price.

1 Power strip 11 Upper housing 12 Lower housing 2 Power cable 3 Rotation outlet 4 Screw holes (lower housing)
51 Outlet 52 Outlet 6 Fixed Outlet 71, 72, 73, 74 Outlet 8 Screw hole (fixed outlet)
90 void (blade receiving)
91 Metal wiring 92 Metal wiring 101,102 Insulator

Claims (5)

One or more outlets are composed of a rotary outlet 3, a fixed outlet 6, a metal wiring 91, and a metal wiring 92, and one rotary outlet 3 has two outlets and one. The fixed outlet 6 has four outlets, the rotary outlet 3 is arranged above the fixed outlet 6, and two sets of opposite outlets of the fixed outlet 6 are opposed to each other. The rotation outlet 3 rotates so as to select one set of the above, the metal wiring 91 is arranged so that the two receiving blades are perpendicular to each other, and the metal wiring 92 is arranged so that the two receiving blades are perpendicular to each other. The metal wiring 91 and the metal wiring 92 are paired with each other so that the four receiving blades form an outlet facing each other so that the metal wiring 91 and the metal wiring 92 do not come into direct contact with each other. Power tap 1 characterized by being isolated by an insulator. The power strip 1 according to claim 1, wherein the metal wiring 91 and the metal wiring 92 are wires for a plurality of outlets and a metal plate in which a receiving blade is integrally molded. A claim that the outlets at both ends of the power strip in the long direction are fixed outlets, and the outlets other than both ends are composed of the rotary outlet 3, the fixed outlet 6, the metal wiring 91, and the metal wiring 92. Power strip 1 according to 1. The power strip 1 according to claim 1, wherein the rotary insertion port 3 has irregularities on the surface for hooking a finger. The power strip 1 according to claim 1, wherein the rotary insertion port 3 and the fixed insertion port 6 have a groove and a protrusion so as to be restricted within a rotation angle of 90 degrees with respect to each other.

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