JP2015233016A - Table tap with free insertion position - Google Patents

Abstract

PROBLEM TO BE SOLVED: To freely select an insertion position of a power supply plug by sharing an adjacent blade receiving port without making a pair of two blade receiving ports distinguishable as a special pair.SOLUTION: Regarding a table tap, on one face of a tap body, a plurality of blade receiving ports are included for connecting power supply plugs each including a pair of blades, and a terminal line is included within each blade receiving port 13. The plurality of blade receiving ports 13 and 13 are arranged in one line in an arrangement direction of a pair of blades 12 and 12 of power supply plugs 11, and an interval between neighboring blade receiving ports is set equal to an interval between the pair of blades 12 and 12.

Description

  The present invention relates to a table tap having a free insertion position, having a plurality of blade receptacles for connecting power plugs on one surface of a tap body, and having a terminal row inside each blade receptacle.

  Table taps are widely used to use various electric devices such as home appliances. The table tap is also called an extension cord, and can be used at a place away from a so-called outlet provided on the wall surface of the room. In particular, the multi-tap has a plurality of pairs of blade receptacles, and a plurality of electric devices can be used simultaneously within the rated voltage and rated current range.

  In the case of a power plug belonging to Type A, the conventional table taps as described above have a pair of blade receptacles into which two pairs of blades are inserted. An appropriate interval is provided between adjacent blade receptacles. For example, Japanese Patent Application Laid-Open No. 2012-177616 is an invention related to a table tap belonging to type B, but the blade receiving port is a pair of two holes as in type A including a first opening and a second opening, and the adjacent first opening and The second openings are set to an interval equal to or greater than the interval between the first opening and the second opening.

  Japanese Patent Laid-Open No. 2012-221949 is an invention of an outlet with a switch, and a large number of blade receptacles are arranged in a line in the direction in which a pair of blades of a power plug are arranged. However, the distance between the pair of terminal rows called the first conductor and the second conductor and the pair of adjacent terminal rows inside the blade receptacle is larger than the distance between the pair of blades of the power plug. Widely set. As described above, the conventional table tap that can be confirmed has a structure in which a pair of blade receiving openings are independent of each other and the adjacent blade receiving openings cannot be shared.

  There are various reasons for this, but one is the necessity to distinguish polarities. The polarity is considered to be important in the case of audio equipment, for example, and it is necessary to distinguish from the safety of electrical equipment. However, there are electrical devices where polarity is not a problem, and type A plugs usually have nonpolar plugs. In particular, when polarity is not a problem, it is not necessary to distinguish the pair of two-hole blade receptacles as a special one, and any pair of blade receptacles may be connected, but such a table tap is known. Absent.

JP 2012-177616 A JP 2012-221949 A

  The present invention has been made paying attention to the above-mentioned points, and the problem is that it is configured so that adjacent blade receptacles can be shared without distinguishing two pairs of blade receptacles as a special pair. Thus, it is to provide a table tap in which the insertion position of the power plug can be freely selected. Another object of the present invention is to reduce the size of a conventional tap having the same number of blade receptacles, and in the case of the same size as a conventional tap, a table tap that can be equipped with more blade receptacles. Is to provide.

  The present invention that solves the above-mentioned problems is a table having a plurality of blade receptacles on one surface of a tap main body and a terminal row inside each blade receptacle for connecting power plugs having a pair of blades. The plurality of blade receptacles are arranged in a line in the direction in which the pair of blades of the power plugs are arranged, and the interval between adjacent blade receptacles is set to be the same as the interval between the pair of blades. It is a measure to do.

  The present invention realizes a table tap that can freely select the insertion position of the power plug by being configured as described above. Therefore, although it can be said that it basically belongs to a nonpolar table tap, it is not limited to a nonpolar one. Moreover, in order to share the adjacent blade receptacle, having a plurality of blade receptacles on one surface of the tap body is an essential requirement in the present invention. In the present invention, it is assumed that a power plug belonging to type A is used. However, it is not impossible to apply the present invention to a type C plug outlet having a ground terminal belonging to type B and a type C plug outlet having two pins having a circular cross section.

  A feature of the present invention is that, in the above-described configuration, the interval between adjacent blade receptacles is set to be the same as the interval between the pair of blades. This is because all adjacent blade receptacles can be shared, and it can be said that this is based on an inventive concept that has not been seen in the past. The plurality of blade receptacles are arranged in a row in the direction in which the pair of blades of the power plug are arranged, but a plurality of rows can be provided.

  The tap body has two side surfaces parallel to each other on both sides of the surface having the blade receptacle, and the two side surfaces have grooves parallel to the arrangement direction of the blade receptacles. The holder can be attached to the holder, and the holder can be provided with a fixing means for any attachment part. It is advantageous for the use of the table tap that the holder main body has means for fixing the main body itself to an arbitrary attachment portion represented by, for example, a wall surface.

  As an apparatus of the present invention, the tap body has a power cord and a terminal array provided in each blade receptacle, and at least one switch for controlling energization is provided between the power cord and the terminal. One is a preferred configuration. The switch includes a switch for controlling energization to individual terminals, as well as a switch for controlling energization to individual terminals.

  In addition, a configuration in which the tap body has a power cord and a terminal row provided in each blade receptacle and has at least one USB terminal connected to the power cord or the terminal row is also preferable. Is. The USB terminal consists of a male (plug) and female (socket or receptacle) connector, but since the USB extension cord terminal is usually the male side, the tap body of the present invention is generally provided with a female connector. It can be said.

  The present invention can also be configured as a table tap having polarity. For example, the tap body has hot and cold two-pole blade receptacles as a pair of two-hole blade receptacles, and type A is used for the two-hole pair of blade receptacles. The power plug can be configured to be connected. Further, the tap body may be provided with a third-pole blade receiving port in addition to the two-hole pair of blade receiving ports and connected to a power plug belonging to type B having a ground terminal.

  Since the present invention is configured and operates as described above, it is possible to share any two adjacent blade receptacles without distinguishing the two-hole pair of blade receptacles as special ones. Thus, an energized state can be obtained regardless of the position of the blade of the power plug inserted into the adjacent blade receptacle, so that it is possible to provide a table tap in which the insertion position can be freely selected. Further, according to the present invention, since the interval between the blade receptacles is minimized, it is possible to reduce the size of the conventional tap having the same number of blade receptacles, and conversely, more in the case of the same size as the conventional tap. It is possible to provide a table tap that can be equipped with a blade receptacle.

  Hereinafter, the present invention will be described in more detail with reference to illustrated embodiments. FIG. 1 shows an example 1 of a table tap 10 having a free insertion position according to the present invention, and a power plug 11 has a pair of blades 12 and 12 for connecting them. The power plug 11 is a plug belonging to a type A connected to a so-called outlet, and satisfies the provisions of JIS C8303 for use in Japan. That is, the pair of blades 12 and 12 of the power plug 11 have a constant distance d.

  The tap body 15 has a plurality of blade receptacles 13 on one surface, and a terminal row 14 is provided inside each blade receptacle 13 (see FIG. 2). The intervals of the blade receiving openings 13 are all the same d as the interval d of the plug blades 12, 12. A plurality of blade receptacles 13, 13... Having such a configuration are arranged in a line in the direction in which the pair of blades 12, 12 of the power plug 11 are arranged. In the case of the type A power plug 11 in which the two flat plate-like blades 12 and 12 are provided in parallel, the flat blade plate surface of the terminal is parallel and the direction is perpendicular to the blade plate surface. It can be paraphrased as an arrangement in which the blade receiving openings 13, 13,.

  The tap body 15 has an elongated shape in the blade receptacle array direction, and is formed in a structure composed of two upper and lower portions 16 and 17, and the blade receptacle 13 is provided in the upper member 16. In the illustrated embodiment, the plurality of blade receptacles 13, 13... Of the tap body 15 only show an example in which they are arranged in a line in the arrangement direction. However, the number of rows of the blade receptacles 13 is not limited to one, and a plurality of rows can be arranged.

  In this embodiment, one terminal plate 19a, 19b is connected to each of the two conducting wires 18a, 18b of the power cord 18. One terminal plate 19a is provided with a terminal 21a, and the other one terminal plate 19b is provided with a terminal 21b. These terminals 21a and 21b are alternately arranged in a line, so that the terminals described above are provided. A column 14 is configured. The interval between the alternately arranged terminals 21a and 21b is the same interval d as between adjacent blade receptacles.

  Such terminal plates 19a and 19b are fitted and fixed to holding portions 22a and 22b provided as internal structures in the tap body 15. Reference numeral 23 denotes an engagement piece, which is provided on the lower portion 17 in order to assemble the upper and lower portions 16 and 17 in an engaged state, and engages with a mating portion (not shown) provided on the upper portion 16. The tap body 15 is assembled integrally by screwing exemplified as the coupling means 24 after the respective parts are connected to be energized (see FIG. 2).

  3 to 5 show Example 2 of the present invention in which the tap body 15 includes a fixing mechanism. The tap body 15 has two side surfaces parallel to the left and right sides where the blade receiving port 13 is not provided, and has grooves 25 parallel to the arrangement direction of the blade receiving ports 13 on the two side surfaces (see FIG. 10A). As shown in FIG. 10A, the parallel groove 25 has a retaining protrusion, and the holder 26 is slidably attached to the groove 25, so that the holder 26 can be fixed to an arbitrary attachment portion. Means 27 are provided. The holder 26 will be described later.

  For the formation of the groove 25, a structure comprising upper and lower two portions 16, 17 is used. Specifically, the groove 25 is formed by a recess along the longitudinal direction provided by molding at the joint portion between the upper and lower portions 16 and 17. As long as the groove 25 extends over the entire length of the tap body 15, the holder 26 can be inserted and removed from either the front or rear end (see FIG. 3). The above-described holder 26 is formed in a shape that sandwiches the tap body 15 from both sides.

  The holder 26 has a bottom portion 26a that overlaps with the lower portion 16 of the tap body and side portions 28 and 28 that rise in the direction of the groove 25 from both the left and right sides thereof, and is formed in a U-shaped cross-sectional shape as a whole. Is provided with an inward protrusion 28a (FIG. 4). The fixing means 27 includes a magnet 27a disposed on the bottom portion 26a or a T-shaped locking hole 27b formed on the same bottom portion 26a. Reference numeral 27 c denotes a magnet holding member, and 27 d denotes an adhesive member, which bonds the magnet holding member 27 c to the lower surface of the tap body 15. 26b shows the opening as a magnet arrangement | positioning part.

  Therefore, the holder 26 can be attached to the tap main body 15 by the engagement of the protrusions 28a and 28a and the grooves 25 and 25 (see FIG. 5), and the position can be determined by sliding it to an arbitrary position. Further, when the magnet 27a is used, it can be fixed by being magnetically attracted to the surface made of a magnetic material, and when the locking hole 27b is used, the tap body 15 is hung on a hook (not shown). Can be hung.

  In the table tap 10 of the present invention configured as described above, the pair of blades 12 and 12 of the power plug 11 are arranged at arbitrary positions in the plurality of blade receiving openings 13, 13... Arranged on one surface of the tap body 15. What is necessary is just to connect to terminal 21a, 21b of a pair of two-hole blade receptacle which adjoins. Referring to FIG. 6, the blades 12 and 12 of the power plug 11-1 are connected to the first and second terminals 21a and 21b from the left, whereas the blade 12 of the power plug 11-2. , 12 can be connected to the fourth and fifth terminals 21a, 21b, and it is not necessary to connect the first, second, third and fourth pairs.

  Further, in the present invention in which the distance d between adjacent blade receptacles is set to be the same as the distance d between the pair of blades, the width of the power plug 11 is usually wider than d, so the adjacent terminals 21a and 21b. Cannot connect to each other. However, if the power plugs 11-1 and 11-2 are formed narrower than usual, they can be connected to the third and fourth terminals 21a and 21b. It will also be understood that it can be done.

  In addition to the above, for example, an AC adapter 29 having a pair of blades 12 and 12 can be handled in the same manner as the power plug 11. In this case, since the adjacent blade receptacle 13 cannot be used because it has a larger casing than a normal power plug, there is a possibility that the third and fourth items from the right that are directly hidden by the conventional table tap cannot be used. . However, according to the table tap 10 of the present invention, since there is no reason to use each pair of No. 1, No. 2, No. 3, and No. 4 from the right, a larger number of plugs can be connected.

  According to the present invention, the tap body 15 includes the power cord 18 and the terminal row 14 provided in each blade receptacle, and at least one switch 30 for controlling energization between the power cord 18 and the terminal. Can be provided (FIG. 7). Therefore, a device including the switch 30 will be described as Example 3 of the present invention. In the illustrated embodiment, a switch 30 is provided between the power cord 18 and the terminal row 14 (FIGS. 8A and 8B). Therefore, all terminals are switched by turning on / off the switch 30. However, as described above, the individual terminals 21a and 21b can be turned on and off separately, and can be easily implemented.

  Furthermore, according to the present invention, the tap main body 15 has the power cord 18 and the terminal row 14 provided in each blade receptacle, and the USB terminal 31 connected to the power cord 18 or the terminals 21a and 21b. It is also possible to take a form having at least one (see FIG. 9 and the like). In Example 4 of the present invention having the USB terminal 31, the female connector is provided in the tap body 15, and therefore an opening 32 is formed at the other end of the tap body 15 (FIGS. 10A and 10B).

  Next, an example in which the present invention is applied to a table tap having polarity will be described. FIG. 11A shows Example 5 in which cold and hot bipolar blade receptacles 33 and 34 are distinguished. Polarity is maintained in the cold side blade receiving port 33 by connecting blades of a slightly wider plug than the hot side blade receiving port 34. However, even in the case of a table tap having such a polarity, the distance between the cold and hot bipolar blade receptacles 33 and 34 provided in the tap body 35 can be all d, and the non-polar type A The blades of the plug 11 can be connected to the adjacent blade receiving ports 33 and 34 or the reverse blade receiving ports 34 and 33 at any position.

  FIG. 11B is an example 6 in which the tap body 37 is provided with a blade receiving port 36 belonging to type B having a third pole ground terminal. However, since the other two-pole blade receptacles are the same blade receptacles as the pair in Examples 1 to 4, the same reference numeral 13 is used for the blade receptacles. In the case of Example 6, in addition to the other two-pole terminal plates 19a and 19b in Example 1 or the like, a third-pole pin terminal plate 20 is combined (see FIG. 12). In Example 6, a three-pole power plug having a ground terminal can be connected by being inserted into a pair of blade receptacles 13, 13, 36 at an arbitrary position, and a non-polar two-pole power plug 11 can be connected at an arbitrary position. It is also possible to connect to the blade receiving openings 13 and 13.

  The present invention is configured as described above, and there is no useless space between the blade receiving openings 13 and 13 consisting of a pair of adjacent two holes, and power plugs are attached to any adjacent blade receiving openings 13 and 13 at any position. Can be connected. Therefore, it contributes to downsizing of the table tap, or conversely, it is possible to promote higher density of the blade receptacle array. In addition, it can be said that the table tap according to the present invention is characterized by having an odd number of three or more blade receptacles. The examples having the odd number of blade receiving openings 13 and 33 in each of the illustrated examples 1 to 6 are particularly illustrated because of the above-described characteristics.

It is a perspective view which shows Example 1 of the table tap in which the insertion position which concerns on this invention is free with a plug. It is the disassembled perspective view which turned over and showed the table tap in the same as the above. It is a perspective view which shows Example 2 of the table tap which concerns on this invention. It is a disassembled perspective view which shows an example of the holder same as the above. Similarly, regarding Example 2, A is an end view and B is a partial plan view. It is sectional drawing which shows the usage method of the table tap which concerns on this invention. It is a perspective view which similarly shows Example 3 of the table tap which similarly concerns on this invention. The principal part in the same as above is enlarged, A is a plan view and B is a cross-sectional view. It is a perspective view which similarly shows Example 4 of the table tap which similarly concerns on this invention. Similarly, regarding Example 4, A is an end view, and B is a cross-sectional view. Similarly, regarding the table tap according to the present invention, A is a plan view showing Example 5 and B is a plan view showing Example 6. FIG. FIG. 11 is an explanatory view showing the wiring of Example 6 in the same manner.

DESCRIPTION OF SYMBOLS 10 Table tap in which insertion position is free 11 Power plug 12 Blade 13, 33, 34 Blade receiving port 14 Terminal row 15, 35, 37 Tap body 16 Upper member 17 Lower member 18 Power cord 19a, 19b, 20 Terminal plate 21a, 21b Terminal 22a, 22b Holding part 23 Engagement piece 24 Coupling means 25 Groove 26 Holder 27 Fixing means 28 Side part 29 AC adapter 30 Switch 31 USB terminal 32 Opening 36 Third pole blade receptacle

Claims (7)

In order to connect power plugs having a pair of blades, a table tap having a plurality of blade receptacles on one side of the tap body, and having a terminal row inside each blade receptacle,
The plurality of blade receptacles are arranged in a line in the direction of the pair of blades of the power plugs,
A table tap having a free insertion position in which the interval between adjacent blade receptacles is set to be equal to the interval between the pair of blades. The tap body has two side surfaces parallel to each other on both sides of the surface having the blade receptacle, and the two side surfaces have grooves parallel to the arrangement direction of the blade receptacles. 2. A table tap having a free insertion position according to claim 1, wherein the holder is a mounting portion of a possible holder, and the holder is provided with a fixing means for an arbitrary mounting portion. 3. The table tap having a free insertion position according to claim 1, wherein the tap body has an odd number of three or more blade receptacles. The tap main body includes a power cord and a terminal array provided in each blade receptacle, and at least one switch for controlling energization is provided between the power cord and the terminal. A table tap having a free insertion position according to any one of 3 above. The tap main body has a power cord and a terminal array provided in each blade receptacle, and has at least one USB terminal connected to the power cord or the terminal. Table tap with free insertion position as described in. 6. The insertion position according to claim 1, wherein the tap body has a hot and cold two-pole blade receptacle, and a type A power plug is connected to the two-pole blade receptacle. Free table tap. The tap body is provided with a third-pole blade receptacle in addition to a pair of two-hole blade receptacles, and connected to a power plug belonging to type B having a ground terminal. Table tap with free insertion position.

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