JP2001338717A - Table tap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve dustproof performance of a table tap using the electrical outlet for a three pin plug having general purpose properties. SOLUTION: Top face electrical outlets 31-35 for the there pin plug, having grounding terminal holes 31Z-35Z in which the three pin plug with a grounding terminal can be inserted are provided on the upper part of a case body 2, and dummy dustproof chips X are inserted detachably in the grounding terminal holes 31Z-35Z of the top face electrical outlets 31-35.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power strip.

[0002]

2. Description of the Related Art Conventionally, a table is provided for the purpose of increasing the number of outlets when it is desired to supply power in a place away from an outlet installed on a wall of a room or other existing outlets or when the number of outlets is insufficient. Taps are being used. As this type of table tap, for example, a type provided with a plurality of outlets (outlets) and switches on the upper surface of a case as disclosed in Japanese Utility Model Registration No. 3049723 is known.

[0003] Outlets used for this type of application include a two-pin plug outlet without a ground terminal and a three-pin plug outlet with a ground terminal. To solve this inconvenience, there is known a universally used table tap which can be used for a 2-pin plug by using an outlet for a 3-pin plug.

[0004]

However, when an outlet for a three-pin plug is provided on the upper surface of the case to provide versatility, when a two-pin plug is used, the outlet for the ground terminal of the outlet for the three-pin plug is used. There is a state where nothing is inserted into the ground terminal hole, and dust enters from the inside of the body, adheres to the surface of various electric parts inside, and promotes oxidation of the surface, resulting in poor electrical contact. In addition, there is a problem that rust is generated and the life is shortened. In particular, when the table tap is installed in a space between furniture for a long period of time, in addition to dust, moisture is remarkable, and there is a problem that the above-mentioned problem is promoted.

An object of the present invention is to provide a power strip capable of solving the above-mentioned problems in the prior art.

[0006]

According to the present invention, a three-pin plug with a ground terminal is inserted into an upper surface of a case body in a power strip having an outlet arranged in the case body. A three-pin plug outlet with a ground terminal hole capable of
A table tap is proposed, wherein a dummy dustproof chip is detachably inserted into a ground terminal hole of a pin plug outlet.

A three-pin plug outlet having a ground terminal hole into which a three-pin plug with a ground terminal can be inserted is provided, so that a three-pin plug with a ground terminal can be used basically and the ground terminal can be used. It is also possible to use a 2-pin plug that is not provided. When using a three-pin plug with a ground terminal, the dummy dustproof chip may be removed. On the other hand, when a two-pin plug is used, by inserting a dummy dustproof chip into the ground terminal hole, dust can be effectively prevented from entering the case body from the ground terminal hole.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a perspective view showing an example of an embodiment of a power strip according to the present invention. Table tap 1
Has a case main body 2, and a plurality of upper surface outlets 31 to 31 which are sockets for a 3-pin plug into which a 3-pin plug with a ground terminal can be inserted into an upper surface 2 </ b> A of the case main body 2.
A plurality of switches 41 to 45 corresponding to 35 are provided.

In the present embodiment, the case body 2 is formed in an elongated box shape, and upper surface outlets 31 to 35 and switches 41 to 45 are alternately arranged on the upper surface 2A. . With this arrangement, the width of the case body 2 can be reduced, and
Can be narrow, so that it can be installed in a narrow gap between the furniture and the wall.

The wiring provided inside the case body 2 allows the switch 41 to control the power on / off of the equipment connected to the outlet 31. Similarly, on / off control of devices connected to the outlets 32 to 35 can be independently performed by the switches 42 to 45.

In order to be able to stably attach a large and heavy device such as an AC adapter integrated with an AC separator to the power strip 1, the power tap 1 also includes a side surface 2B of the case main body 2. Outlets are provided. These side outlets 51,
53 and 55 are provided corresponding to the upper surface outlets 31, 33 and 35. That is, the side outlet 51
Are disposed on the side surface 2B so as to be aligned with the upper surface outlet 31 along a direction orthogonal to the longitudinal direction of the case body 2. The same applies to the side outlets 53 and 55.

If side outlets 51, 53, and 55 are provided on the side surface 2B of the case main body 2, and an AC separator provided integrally with the AC adapter is inserted into any of these, and power is supplied, a table tap can be obtained. When the power strip 1 is used on the floor, the weight of the AC adapter is supported by the floor, so that the power strip 1 is extremely stable compared to the conventional case where the weight of the AC adapter is added to the power strip 1. And the trouble that the table tap 1 rolls on the floor surface does not occur. The number of outlets provided on the side surface 2B of the case body 2 is not limited to three, but may be one or an arbitrary number.

The table tap 1 is provided with an upper outlet 31.
A socket for a three-pin plug into which a three-pin plug with a ground terminal can be inserted is used as .about.35, and basically a three-pin plug can be used. And
When a 2-pin plug is used, the ground terminal holes 31Z-
In order to prevent dust from entering the case body 2 from 35Z, a dummy dustproof chip X is removably inserted into each of the ground terminal holes 31Z to 35Z of the upper outlets 31 to 35.

The dummy dustproof chip X is preferably made of a known deformable material such as a flexible material such as synthetic rubber or a synthetic resin material having elasticity. By making the size and shape of the chip X slightly larger than the size and shape of the ground terminal holes 31Z to 35Z of the upper outlets 31 to 35, the dummy dustproof chip X is forcibly inserted into the corresponding ground terminal hole. Can be reliably held. If the dummy dustproof chip X is properly inserted and attached in this manner, a dustproof function when using the 2-pin plug is secured, and if the dummy dustproof chip X is removed, the 3-pin plug can be used at any time, which is convenient. As described above, the power strip 1 is configured to be able to solve the problem of dust prevention when using the two-pin plug while having versatility.

Next, the internal structure of the power strip 1 will be described with reference to FIGS.

Each of the switches 41 to 45 has three terminals, and these terminals include 41a to 45a,
Reference numerals 41b to 45b and 41c to 45c are assigned as shown in FIG.

The terminals 41a to 45a are formed in the corresponding terminal insertion holes 71 of the first wiring board 7 made of one conductive thin plate member.
The first wiring board 7 is electrically connected to the terminals 41a to 45a by crimping. The first wiring board 7 is electrically connected to one line 101A of the AC cord 101 drawn into the case main body 2 via a rubber bush 100 provided on the case main body 2.

The connection pieces 31B-35B provided corresponding to the one outlet holes 31A-35A of the upper outlets 31-35 are connected to the terminals 41c of the switches 41-45.
45c is integrally formed with the second wiring board 8 which is crimp-connected. The second wiring board 8 also has terminals 41c to 45c.
c, into which terminal insertion holes 81 to 85 are inserted. Similarly to the case of the first wiring board 7, the second wiring board 8 is mechanically and crimped with the terminals 41c to 45c by crimping.
It is electrically connected. At the same time as this connection, the connection pieces 31B to 35B are turned into the corresponding outlet holes 31A to 3A.
It is positioned so as to face 5A and is fixed there. Therefore, the assembling process is significantly simplified, and the cost is reduced.

The connection pieces 51B, 53B and 55B corresponding to the connection pieces 31B, 33B and 35B among the connection pieces of the side outlets 51, 53 and 55 are mechanically and crimped to the second wiring board 8 by crimping. It is electrically connected.

Referring to FIG. 3, a bent projection 51Ba is integrally provided at the rear of the connection piece 51B, and is bent into a terminal insertion hole 8a formed in the second wiring board 8. The protruding piece 51Ba is inserted and crimped by crimping, and both are mechanically and electrically connected.

Although not shown in FIG. 3, other connecting pieces 53
B and 55B are similarly fixed to required positions of the second wiring board 8 in the same manner.

Therefore, the connecting piece 5 is previously attached to the second wiring board 8.
1B, 53B, and 55B are attached as described above, and the second wiring board 8 is connected to the terminals 41c to 41c of the switches 41 to 45.
45c, only by crimping the second wiring board 8
Wiring, connection pieces 51B, 53B, 55B and connection piece 3
1B to 35B can be assembled at the same time, whereby the assembling and wiring work can be significantly simplified, and the cost can be reduced.

The connection pieces 31D to 35D corresponding to the outlet holes 31C to 35C of the upper outlets 31 to 35 include:
Connection bars B1 to B5 for connecting the switches 41 to 45 to the terminals 41B to 45B are provided integrally, and the connection bars B1 to B5 are crimped to the terminals 41B to 45B by crimping to form connection pieces 31D to 35D. Wiring and assembly are completed at the same time.

Here, the connection pieces 31 of the upper surface outlets 31, 33, 35 provided with corresponding side outlets
D, 33D, and 35D are integrally formed with connection pieces 51D, 53D, and 55D of the corresponding side outlets to be one part. FIG. 3 shows an integrated terminal of the connection pieces 31D and 51D in detail, but the same applies to other terminals.

Therefore, for example, only by crimping the connection bar B1 to the terminal 41b and crimping it, the connection pieces 31D and 51
D and the wiring between them and the terminal 41b can be completed all at once. Others are the same.

According to the table tap 1, an outlet having a ground terminal hole into which a three-pin plug with a ground terminal can be inserted is provided, so that the three-pin plug with a ground terminal can be used basically. It is also possible to use a two-pin plug without a ground terminal. When a three-pin plug with a ground terminal is used, the dummy dustproof chip X may be removed. On the other hand, when a two-pin plug is used, the dummy dustproof chip X is inserted into the ground terminal holes 31Z to 35Z so that the ground terminal holes 31Z to 35Z can be used.
It is possible to effectively prevent dust from entering the case body from the 35Z. In this way, the table tap 1 can solve the problem of dust prevention when using the two-pin plug, while having versatility.

According to the table tap 1, the following effects are also obtained. (1) Since the outlet is also provided on the side, in the case of a large-sized or heavy one, it can be used favorably without impairing the stability of the power strip by inserting it into the outlet on the side. (2) Since outlets and switches are alternately arranged in a row on the upper surface, the table tap can be made slender.
The degree of freedom of arrangement is high, and the usability is good. (3) Since the contact pieces of both outlets are integrated into the upper outlet and the corresponding side outlet, the number of parts is reduced, the assembly is easy, and even if the number of outlets increases, the increase in cost is suppressed. be able to. (4) Since the components are arranged and wired by crimping connection using a plate-shaped wiring board, manufacturing costs can be significantly reduced. (5) The contact piece of the upper outlet is formed integrally with the plate-like wiring board, and the corresponding contact piece of the side outlet is attached to this wiring board by crimping. Can be completed and wiring can be completed, and assembly and wiring costs can be significantly reduced.

[0029]

According to the present invention, an outlet with a ground terminal hole into which a three-pin plug with a ground terminal can be inserted is provided, so that a three-pin plug with a ground terminal can be used basically. Alternatively, it is also possible to use a two-pin plug without a ground terminal. When using a three-pin plug with a ground terminal, remove the dummy dust-proof chip, and when using a two-pin plug, leave the dummy dust-proof chip inserted in the ground terminal hole. Can effectively be prevented from getting into the case body, so that it is possible to solve the problem of dust prevention when using the two-pin plug while maintaining the versatility of the table tap.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of an embodiment of a power strip according to the present invention.

FIG. 2 is an internal structure diagram showing the internal structure as viewed from the bottom surface of the table tap shown in FIG. 1;

FIG. 3 is an enlarged perspective view of a main part for describing a configuration and an attached state of each connection piece of a top outlet and a corresponding side outlet.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Table tap 2 Case main body 2A Top surface 2B side surface 7 1st wiring board 8 2nd wiring board 31-35 Top outlet 31B-35B, 31D-35D, 51B, 53B, 5
5B, 51D, 53D, 55D Connection piece 31Z-35Z Ground terminal hole 41-45 Switch 51, 53, 55 Side outlet B1-B5 Connection bar X Dummy dustproof chip

Claims (1)

[Claims] In a power strip having an outlet disposed on a case main body, an outlet for a three-pin plug having a ground terminal hole is provided on an upper surface of the case main body so that a three-pin plug with a ground terminal can be inserted. A table tap characterized in that a dummy dustproof chip is detachably inserted into a ground terminal hole of a three-pin plug outlet.