JP2003045588A - Function extension type table tap and extending table tap for extension - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a function extension type table tap and an extending table tap for easily extending the function, and superior in extendability. SOLUTION: Attachment ports 101 are formed into a rectangular one surface equivalent to three plugs, a table tap body 10 provided with a power source connecting part 11 is provided on a short side one side surface orthogonal to this one surface, and the function extension type table tap 1 is arranged for extending the function by connecting the extending table tap 2. The extending table tap 2 forms attachment ports 201 and 201A on at least one surface equivalent to one plug, and has a plurality of plug blades projected on one side surface orthogonal to this one side surface. An attachment port for inserting the plurality of plug blades projected from the one side surface of the extending table tap 2, is formed on the other side surface of the short side orthogonal to the one surface of the table tap body 10. The cross-sectional dimension of these function extension type table tap 1 and extending table tap 2 is set in the same dimension.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art Conventionally, various table taps to which a power cord is attached are commercially available.

[0003]

However, the conventional table tap is completed as one product, and when it is necessary to increase the number of insertion ports later, for example, or a function such as a noise filter is provided. When the need arises, it was necessary to purchase a new table tap that meets the requirements and replace it with the table tap that is currently in use.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a function-expandable table tap and an expansion table tap which are capable of easily expanding their functions and have excellent expandability. .

[0005]

According to a first aspect of the present invention for solving the above-mentioned problems, at least one plug has an insertion port for inserting a plurality of blades provided in one plug. Formed on one surface of a rectangular shape, and a power supply connection portion is provided on one short side surface orthogonal to the one surface, for electrically connecting the plurality of blades to the power supply connection portion. Is equipped with a flat-shaped table tap body for accommodating a plurality of blade receiving springs under the insertion opening, and at least one insertion opening for inserting a plurality of blades provided in one plug is provided in the plug. A plurality of blades are formed on one side of the surface, and a plurality of blades are projected on one side surface orthogonal to the one surface, and a plurality of blade receiving springs electrically connected to the plurality of blades are inserted into the insertion surface. Attach the flat-shaped expansion table tap to be stored under the mouth to the table tap body. It is a function-expansion-type table tap for expanding the function by continuing, and is projected from one side surface of the expansion table tap on the other side surface on the short side orthogonal to one surface of the table tap body. And a plurality of blade receiving springs electrically connected to the power source connecting portion are housed under the insertion opening.

According to a second aspect of the present invention, in the function-extending type table tap according to the first aspect, the power supply connecting portion is
A power cord that has a plug having a plurality of blades attached at one end and encloses a plurality of electric wires electrically connected to the plurality of blades in an insulated state from each other. A plurality of blade receiving springs housed under the insertion port on one surface of the table tap body are electrically connected to each other.

According to a third aspect of the present invention, in the function-extending type table tap according to the first aspect, the power source connecting portion is
A plurality of blades protruding from one side surface of the table tap body, and a plurality of blade receiving springs housed under the insertion port on the one surface of the table tap body are It is characterized in that it is electrically connected to each of a plurality of blades protruding from the side surface of the.

According to a fourth aspect of the present invention, in the function-extending type table tap according to any one of the first to third aspects,
The table tap main body is provided with a switch for turning on / off the power from the power supply connection part in a state where an operation part of the switch is exposed on one surface of the table tap main body.

According to a fifth aspect of the present invention, in the function-extending type table tap according to any one of the first to fourth aspects,
The table tap body is provided with a retaining means for retaining a blade inserted into an insertion port on the other side surface of the table tap body.

According to a sixth aspect of the present invention, in the function-extending table tap according to any one of the first to third aspects,
The table tap body is provided with a breaker that stops the power supply from the power supply connection section when the power supply amount from the power supply connection section reaches 1500 W or more.

According to a seventh aspect of the present invention, in the function-extending type table tap according to any one of the first to third aspects,
The table tap body has an indicator lamp that lights up when the power supply amount from the power supply connecting portion reaches 100 W, 500 W, and 1000 W, and the power supply amount is 150
And a buzzer that sounds when the power exceeds 0 W.

According to an eighth aspect of the invention, in the function-extending type table tap according to the third aspect, a plug having a plurality of blades, and a plurality of the blades electrically connected at one end to the plurality of blades are provided. A power cord that includes a cord portion that encloses the electric wires in an insulated state from each other, and a jack that accommodates a plurality of electric wires of the cord portion and a plurality of blade receiving springs electrically connected at the other ends, respectively. The jack of the power cord is characterized in that it is connected to a plurality of blades which are the power source connecting portions.

According to a ninth aspect of the present invention, there is provided an extension table tap connected to the function extension type table tap according to any one of the first to eighth aspects, wherein the other side face is orthogonal to the one face. , One input and one output telephone modular jack, and lightning surge protection means for these telephone modular jacks and a plurality of blade receiving springs to be housed.

The invention described in claim 10 is from claim 1 to claim 8.
An expansion table tap connected to the function expansion type table tap according to any one of claims 1 to 4, wherein the insertion ports are formed on the one surface for a plurality of plugs, and the plurality of insertion ports are formed under the insertion ports. A plurality of blades that house the blade receiving spring of
It is characterized by being movable at 0 degrees.

The invention described in claim 11 is from claim 1 to claim 8.
An expansion table tap connected to the function expansion type table tap according to any one of claims 1 to 4, wherein the insertion ports are formed on the one surface for a plurality of plugs, and the plurality of insertion ports are formed under the insertion ports. The blade receiving spring is stored, and the plurality of blades protruding from one side surface of the additional table tap are
It is characterized by being movable at 80 degrees.

According to a twelfth aspect of the present invention, in the extension table tap according to the tenth or eleventh aspect, all the blade receiving springs to be housed are provided with a switch for turning on / off the power source.
It is characterized in that the operation portion of the switch is provided on one surface in an exposed state.

The invention described in claim 13 is from claim 1 to claim 8.
An additional table tap to be connected to the function-expansion type table tap according to any one of items 1 to 5, wherein a noise / surge absorbing element is provided between the power sources of the insertion ports.

The invention according to claim 14 is the invention according to claims 1 to 8.
An expansion table tap connected to the function expansion type table tap according to any one of claims 1 to 4, wherein the insertion ports are formed on the one surface for a plurality of plugs, and the plurality of insertion ports are formed under the insertion ports. The blade receiving springs of (1) are housed, and a retaining means for retaining the blades inserted into the insertion openings is provided.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) FIG. 1 is a front view of various function-expansion type table taps and expansion table taps connected to each other. In the description of the first embodiment, the reference numerals in parentheses in FIG. 1 are used as appropriate.

As shown in FIG. 1, various types (three types in the figure) of the function-extending type table tap 1 of the first embodiment are prepared, and all of them are provided in one plug (power plug) not shown. In addition, a plurality of (one pair in the first embodiment) insertion blades 101 for inserting the blades are formed on one surface (front surface in the figure) of a rectangular shape for three plugs, and are orthogonal to the one surface. The power supply connection portion 11 is provided on one side surface on the short side (right side in the figure).
Is provided, and a plurality of blade receiving springs (not shown) for electrically connecting the plurality of blades of the plugs to the power supply connection portion 11 are housed under the respective insertion ports 101 in a rectangular shape. The table tap main body 10 made of is provided.

The power supply connecting portion 11 has a plug having a plurality of blades attached to one end (not shown) and includes a plurality of electric wires electrically connected to the plurality of blades in an insulated state from each other. At the other end, a plurality of blade receiving springs housed under the respective insertion ports 101 on one surface of the table tap body 10 are provided with conductive members (for example, metal members) at the other ends thereof. Electrically connected via.

Here, the function addition type table tap 1 (1
As shown in FIGS. 1 (a) and 1 (e), (A) is an illuminated switch 102 for turning on / off the power from the power supply connecting portion 11.
Is provided on one surface of the table tap body 10 in a state where the operation portion of the illuminated switch 102 is exposed. The illuminated switch has an indicator light that lights up when the switch is turned on.

The function addition type table tap 1 (1B) is
As shown in FIGS. 1B and 1D, when the amount of power supplied from the power supply connection unit 11 becomes 1500 W or more, the power supply connection unit 1
Breaker 103 (1 in the figure
5A breaker) is provided on one surface of the table tap body 10 with the switch 103a of the breaker 103 exposed.

The function addition type table tap 1 (1C) is
As shown in FIGS. 1C and 1F, the display windows 104a and 1a
Immediately below 04b and 104c, while accommodating indicator lights such as LEDs that light up when the amount of power supplied from the power supply connection unit 11 reaches 100W, 500W, and 1000W, respectively, directly below the buzzer sound output window 105. , It contains a buzzer that sounds when the power supply exceeds 1500W.

On the other hand, various types of additional table taps 2 are prepared as shown in FIG. 1 (four types in the figure), and all of them are made of resin to have a rectangular cross section with the same size as the function-extending type table tap 1. Formed, 1 plug (not shown)
201 for inserting a plurality of blades provided in the
(201A) is formed on at least one surface per plug (front surface in the figure). Hereinafter, these various addition table taps 2 will be described with further reference to the drawings.

FIG. 2 shows FIG. 1 (a), (b), (c),
Expansion table tap 2 (2A) shown in (d) and (f)
Front view, lower side view, rear view, left side view and right side view, FIG. 3 is a circuit diagram of the lightning surge protection function section of the additional table tap 2 (2A), and FIG. 4 is the same lightning surge protection function. It is explanatory drawing of the effect by a part.

In the additional table tap 2 (2A), as shown in FIGS. 2 and 3, the insertion port 201 is formed on one surface for one plug, and one side surface orthogonal to this one surface. A plurality of blades 202 are projected on the right side surface in FIG. 2, and a plurality of blade receivers are electrically connected to these blades 202 (AC power source AC in FIG. 3) through conductive members. The spring 200 is stored under the insertion port 201.

In addition, an additional table tap 2 (2A)
Is a 90-degree movable type in which a plurality of plug blades 202 can be erected on the back side as well as the insertion port 201 is as small as one plug. , It has a configuration that can flexibly respond to various installation locations.

Further, an additional table tap 2 (2A)
Is on the other side surface (left side surface in FIG. 2) orthogonal to one surface,
The telephone modular jacks 203 each having 6 poles and 2 cores for input and output are provided one by one, and the lightning surge protection function section 204 is housed.

As shown in FIG. 3, the lightning surge protection function section 204 is composed of a pair of varistor Z1, a diode D1, a resistor R1, a light emitting diode LED, a capacitor C1, a two-pole arrester Ar1 and a pair of varistor Z2. , Telephone modular jack 203 and blade receiving springs 200.

According to this circuit configuration, the pair of blades 202
Induced lightning surge that has entered from the terminal flows to the protector on the telephone side through the route of Z1 → Ar1 → Z2, so it is possible to protect the device that is the load and also to intrude from the telephone side by the reverse route. Can be protected. In case of lightning protection on the power line side, connected high-performance telephone, F
A potential difference occurs between the power supply side and the telephone line side of a device (device to be protected in FIG. 4) such as an AX, a personal computer, or a peripheral device. However, the potential difference is limited by the lightning surge protection function unit 204, and the device can be protected. Become. The same applies when there is lightning protection on the telephone line side.

The LED lights up during the normal operation of the lightning surge protection function section 204. This lighting up is caused by the display window 20 formed on one surface of the additional table tap 2 (2A).
It can be confirmed through 4a. However, if the load cannot be protected due to the life (short circuit) of the varistor due to absorption of surges several times, the pattern fuse F is blown and the LED does not light. In this case, the lightning surge protection function unit 204 does not function, but there is no problem in using the insertion port 201.

This additional table tap 2 (2A) is
For example, it can be independently connected to a wall outlet and is suitable for connecting a device such as a telephone or a FAX.

FIG. 5 is a front view, a lower side view, a rear view, a left side view and a right side view of the extension table tap 2 (2B) shown in FIG. 1 (d), and FIG. Two
FIG. 7 is a circuit diagram of a noise / surge reduction function unit included in B).

As shown in FIGS. 5 and 6, in the additional table tap 2 (2B), the insertion ports 201 are formed on one surface for three plugs, and one side surface orthogonal to this one surface. A plurality of blades 202 (projected on the right side in FIG. 5) are projected, and a plurality (a pair) electrically connected to the blades 202 (AC power source AC in FIG. 6) through conductive members. The blade receiving springs 200 are stored under the respective insertion openings 201.

In addition, an additional table tap 2 (2B)
As shown in FIG. 5 (b), is a 90-degree movable type in which a plurality of blades 202 can be erected on the back side, and as shown in FIG. 6, a varistor Z1 and a capacitor C1 are used. It is configured to include the noise / surge reduction function unit 205. This additional table tap 2 (2
B) can be connected to a wall outlet alone, for example.

Further, an additional table tap 2 (2B)
On the other side surface (left side surface in FIG. 5) orthogonal to the one surface,
An insertion port 201A for inserting a plurality of blades provided in one plug (not shown) is formed for one plug,
A plurality of blade receiving springs electrically connected to the plurality of blades 202 via conductive members are housed under the insertion port 201A. A retaining mechanism for retaining the blade inserted into the insertion port 201A is provided as in the conventional case. That is, by inserting a pair of blades of the plug into the pair of fan-shaped holes TH1 provided in the insertion port 201A, each blade is rotated to a position orthogonal to one surface of the additional table tap 2 (2B). If it moves, its plug will be attached by the retaining mechanism to the insertion port 2 of the additional table tap 2 (2B).
It has a structure that prevents it from coming off from 01A.

FIG. 7 is a front view, a lower side view, a rear view, a left side view and a right side view of the additional table tap 2 (2C) shown in FIG. 1 (e).

The additional table tap 2 (2C) is shown in FIG.
As shown in FIG. 3, the insertion port 201 is formed on one surface for three plugs, and a plurality of blades 202 are projected on one side surface (right side surface in the figure) orthogonal to the one surface. A plurality of (a pair of) blade receiving springs electrically connected to the plurality of blades 202 of (1) through conductive members are housed under the respective insertion openings 201.

Further, an additional table tap 2 (2C)
As shown in FIG. 7B, is a 90-degree movable type in which a plurality of blades 202 can be installed upright also on the back side, and for turning on / off the power to all the blade receiving springs to be stored. The illuminated switch 206 is provided with the operation portion of the illuminated switch 206 exposed on one surface. The additional table tap 2 (2C) can be independently connected to a wall outlet, for example.

FIG. 8 is a front view, a lower side view, a rear view, a left side view and a right side view of the additional table tap 2 (2D) shown in FIG. 1 (f).

The additional table tap 2 (2D) is shown in FIG.
As shown in FIG. 3, the insertion port 201A is formed on the surface of one of the three plugs, and a plurality of blades 202 are projectingly provided on one side surface (right side surface in the figure) orthogonal to the one surface. A plurality of (a pair of) blade receiving springs electrically connected to the plurality of blades 202 of (1) via conductive members are housed under the respective insertion openings 201A.

Also, an additional table tap 2 (2D)
As shown in FIG. 8 (b), is a 90-degree movable type in which a plurality of blades 202 can be erected on the back side as well, and as shown in FIG. One plug 201A for inserting a plurality of blades provided in one plug (not shown) is formed on the other side surface (the left side surface in the drawing) orthogonal to the plug. A plurality of blade receiving springs that are electrically connected to the plurality of blades 202 via conductive members are housed below the insertion port 201A.

Further, a retaining mechanism for retaining the blade inserted into each insertion port 201A is provided as in the conventional case. The additional table tap 2 (2D) can be independently connected to a wall outlet, for example.

FIG. 9 is a front view, a lower side view, a rear view and a left side view of the function addition type table tap 1 (1A) shown in FIGS. 1 (a) and 1 (e).

As shown in FIG. 9, not only the above-mentioned function-expansion-type table tap 1A but also the various function-expansion-type table taps 1 of the first embodiment are provided on the other side surface (left side surface in the figure) orthogonal to one surface. ), One plug 100A for inserting a plurality of blades provided in one plug (not shown) is formed for one plug, and the power supply connection portion 11 (power source 11) is formed under the plug 100A. It houses a plurality of blade receiving springs that are electrically connected to a plurality of electric wires of the cord) via conductive members. A retaining mechanism for retaining the blade inserted into the insertion port 100A is provided as in the conventional case.

According to the function addition type table tap 1 having such a configuration, it can be used alone as a normal table tap, and as shown in FIG. By combining 2 in various ways, the function can be easily expanded to meet the demand.

For example, according to the system table tap of the combination shown in FIG. 10, the lightning surge protection function section 204 of the extension table tap 2A is the function extension type table tap 1.
Since it also works on A, a four-port table tap with a lightning surge protection function can be obtained. In this case, it is suitable for protecting a plurality of devices such as a personal computer and its peripheral devices. Further, the illumination type switch 102 can turn on / off the power of all the insertion ports.

In the example of FIG. 1E, the illuminated switch 10
It is possible to turn on / off the power of all 6 insertion ports by 2, and it is possible to turn on / off the power of 3 insertion ports on the expansion side by the illumination type switch 206.

Further, since the cross-sectional dimensions of both the function-expansion type table tap 1 and the expansion table tap 2 are the same, a system table tap having a clean design with a sense of unity can be obtained. Further, since no step is formed at both connecting portions, no external force is applied to the step.

According to the function addition type table tap 1A,
Since the illumination type switch 102 is provided, the illumination type switch 102 turns on / off the power supply to each device from the single function addition type table tap 1A or the function extension type table tap 1A and at least one extension table tap 2. be able to.

According to the function addition type table tap 1B,
Since the breaker 103 is provided, it is possible to limit the power supplied to each device to a maximum of 1500 W from the single function-expansion-type table tap 1B or the function-expansion-type table tap 1B and at least one expansion table tap 2. it can.

According to the function addition type table tap 1C,
Since it is provided with an indicator light and a buzzer, it is possible to know the rough level of the power supply amount to each device from the single function addition type table tap 1C or the function addition type table tap 1C and at least one extension table tap 2. In addition, it is possible to warn by sounding a buzzer to stop the connection of devices over 1500W. This allows safe use without worrying about overcurrent until the buzzer sounds.

According to the additional table tap 2A, if a device such as a facsimile or a personal computer that uses a power line and a telephone line at the same time is connected to this, the device is protected from an induced lightning surge from both the power line and the telephone line. can do.

According to the additional table tap 2B, when the insertion port of the additional function table tap 1 is insufficient, the additional table tap 2B is added to the additional function table tap 1.
You can increase the number of outlets by connecting.

According to the add-on table tap 2C, the power supply to each device can be collectively turned on / off by the illuminated switch 206 from the add-on table tap 2C.

Furthermore, according to the additional table tap 2, since the blade 202 is movable by 90 degrees, it is possible to flexibly cope with various installation places.

(Second Embodiment) FIG. 11 is a front view of various function addition type table taps. Also in the description of the second embodiment, the reference numerals in parentheses in FIG. 11 are used as appropriate.

As shown in FIG. 11, various types of function-expanding table taps 1 according to the second embodiment are prepared, and a power source comprising a plurality of blades 110 protruding from one side surface of the table tap body 10. The configuration is similar to that of the first embodiment, except that the power supply connection unit 11 is replaced with the connection unit 11A.
That is, the function addition type table tap 1 shown in FIG.
Each of D, 1E, and 1F is configured in the same manner as the function-expansion-type table taps 1A, 1B, and 1C of the first embodiment, except that the power supply connection unit 11A is provided instead of the power supply connection unit 11. The plurality of blades 110 are electrically connected to the plurality of blade receiving springs housed under the respective insertion openings (101, 100A) via conductive members.

According to the function addition type table taps 1D, 1E, 1F of the second embodiment, the function can be easily expanded by connecting the function addition type table tap 1 to the addition table tap 2. . In addition, FIG.
As shown in (a) and (b), a plug 31 having a plurality of blades 311 and a plurality of electric wires electrically connected to the blades 311 of the plug 31 at one end are insulated from each other. The code part 30 to be included and this code part 30
If the power cord 3 including the plurality of electric wires and the jack 32 that houses the plurality of blade receiving springs electrically connected to each other at the other end is used, the function addition type table tap 1 and the second embodiment of the second embodiment can be obtained. The power cord 3 can be used as a normal table tap.

(Third Embodiment) FIG. 12 is a front view, a lower side view, a rear view, a left side view and a right side view of an extension table tap of the third embodiment, and FIG. 13 is an extension table of the third embodiment. It is explanatory drawing of the usage example of a table tap.

Expansion table tap 2 of the third embodiment
Has a plurality of blades 202 protruding from this one side surface.
The configuration is similar to that of the first embodiment except that it is movable at 0 degrees. For example, in the expansion table tap 2B of the first embodiment, as shown in FIG. 5B, the plurality of blades 202 are movable by 90 degrees, whereas the expansion table tap of the third embodiment is expanded. For the table tap 2F for use in FIG.
As shown in, the plurality of blades 202 are movable at 180 degrees so as to stand on the front side in addition to the back side.

According to the additional table tap 2 of the third embodiment, as shown in FIG. 13, it is possible to flexibly and stably cope with various installation places. FIG.
In the above example, the extension table tap 2F is connected to the function extension type table tap 1A and is installed in a corner such as a desk or a rack.

[0064]

As is apparent from the above, according to the invention of claim 1, the insertion port for inserting a plurality of blades provided in one plug is at least one plug. A power source connecting portion is formed on one surface of the shape, and a power source connecting portion is provided on one short side surface orthogonal to the one surface, and a plurality of electrically connecting the plurality of blades to the power source connecting portion. A flat table tap body for accommodating the blade receiving spring of No. 1 below the insertion port, and an insertion port for inserting a plurality of plug blades provided in one plug is provided for at least one of the plugs. A plurality of blades protruding from one side surface orthogonal to the one surface, and a plurality of blade receiving springs electrically connected to the plurality of blades, respectively. Connect the flat-shaped expansion table tap to be stored in the table to the table tap body. According to the above, the function addition type table tap for expanding the function is provided on the other side surface on the shorter side orthogonal to the one surface of the table tap body, and is projected from the one side surface of the extension table tap. An insertion port for inserting a plurality of blades is formed, and a plurality of blade receiving springs electrically connected to the power supply connection section are stored under the insertion port, so that the function addition type table tap is used independently. In addition to being able to be used in, it is possible to easily expand the function by connecting the additional table tap to the additional function type table tap, it is possible to provide a highly expandable table tap. In addition, it is easy to make the cross-sectional dimensions of both the function-expansion type table tap and the expansion table tap uniform, and if both cross-sectional dimensions are made uniform, it is possible to finish the design with a sense of unity. Furthermore, it is also suitable for storage on the back of a desk or in a rack.

According to a second aspect of the invention, in the function-extending type table tap according to the first aspect, a plug having a plurality of blades is attached to one end of the power source connecting portion. A power cord that encloses a plurality of electrically connected electric wires in an insulated state from each other, and at the other end of the electric power cord, a plurality of electric wires housed under the insertion port on one surface of the table tap body. Since the blade receiving springs of are electrically connected to each other, the function can be easily expanded by connecting the additional table tap to the additional function table tap, and the additional function table tap is normally used by itself. It can be used as a table tap.

According to the invention described in claim 3, in the function-expansion-type table tap according to claim 1, the power source connecting portion is a plurality of blades projecting from one side surface of the table tap body. The plurality of blade receiving springs housed under the insertion opening on the one surface of the table tap body are electrically connected to the plurality of blades protruding from the one side surface of the table tap body. Therefore, a table tap with excellent expandability can be provided.

According to a fourth aspect of the present invention, in the function-extending type table tap according to any one of the first to third aspects, the table tap body has a switch for turning on / off the power from the power source connecting portion. Since the operation part of the switch is provided on one surface of the table tap main body in an exposed state, a single function-expansion-type table tap, or a function-expansion-type table tap and at least one expansion-use table tap, Power can be switched on and off by a switch.

According to a fifth aspect of the present invention, in the function-expansion-type table tap according to any one of the first to fourth aspects, the table tap body is an insertion port on the other side surface of the table tap body. Since a stopper means for preventing the blade blade to be inserted from coming off is provided, when a plurality of blade blades on one side surface of the additional table tap is inserted into the insertion port on the other side surface of the table tap body, Since the stopper blade is prevented from coming off the insertion port by the coming-off preventing means, the additional table tap is hard to come off from the function-expanding table tap, and the connection reliability is improved.

According to a sixth aspect of the present invention, in the function-extending type table tap according to any one of the first to third aspects, the table tap body has a power supply amount of 1500 W or more from the power source connecting portion. In that case, since a breaker that stops the power supply from the power supply connection part is provided, the power supplied to each device from a single function-expansion-type table tap, or a function-expansion-type table tap and at least one expansion-use table tap is provided. It can be limited to a maximum of 1500W.

According to a seventh aspect of the present invention, in the function-extending type table tap according to any one of the first to third aspects, the table tap body has a power supply amount of 100 W or 500 W from the power source connecting portion. , 1000 W, and a buzzer that sounds when the power supply amount exceeds 1500 W, respectively, so that a single function-extending table tap or a function-expanding table tap and at least one From one additional table tap, it is possible to know the rough level of the amount of power supplied to each device, and it is also possible to warn by buzzer ringing to stop the connection of devices of 1500 W or more. This allows safe use without worrying about overcurrent until the buzzer sounds.

According to the invention described in claim 8, in the function-extending type table tap according to claim 3, a plug having a plurality of blades, and a plurality of blades of the plug are electrically connected at one end respectively. A power cord composed of a cord portion that encloses a plurality of electric wires in an insulated state from each other, and a jack that accommodates a plurality of electric wires of this cord portion and a plurality of blade receiving springs electrically connected at the other ends, respectively. Since the jack of this power cord is connected to a plurality of blades that are the power connection portion, the function can be easily expanded by connecting the additional table tap to the additional function table tap. The function addition type table tap can be used alone as a normal table tap.

According to a ninth aspect of the present invention, there is provided an extension table tap connected to the function extension type table tap according to any one of the first to eighth aspects, in which another side surface is orthogonal to the one side surface. , One input and one output telephone modular jack, and a lightning surge protection means for these telephone modular jacks and a plurality of blade receiving springs to be stored. By connecting a device such as a facsimile or a personal computer that uses a telephone line at the same time, the device can be protected from an induced lightning surge from both the power line and the telephone line.

The invention described in claim 10 is from claim 1 to claim 8.
An expansion table tap connected to the function expansion type table tap according to any one of claims 1 to 4, wherein the insertion ports are formed on the one surface for a plurality of plugs, and the plurality of insertion ports are formed under the insertion ports. A plurality of blades that house the blade receiving spring of
Since it is a movable type of 0 degree, when the insertion port of the function addition type table tap is insufficient, the insertion port can be increased by connecting the function addition type table tap to the main addition table tap. Further, since the blade for connecting to the function-added type table tap is movable 90 degrees, it is possible to flexibly cope with various installation places.

The invention described in claim 11 is from claim 1 to claim 8.
An expansion table tap connected to the function expansion type table tap according to any one of claims 1 to 4, wherein the insertion ports are formed on the one surface for a plurality of plugs, and the plurality of insertion ports are formed under the insertion ports. The blade receiving spring is stored, and the plurality of blades protruding from one side surface of the additional table tap are
Since it is a movable type of 80 degrees, when the insertion port of the function addition type table tap is insufficient, the insertion port can be increased by connecting the main addition table tap to the function addition type table tap. Moreover, since the blade for connecting to the function-added type table tap is movable 180 degrees, it is possible to flexibly cope with various installation places such as a corner of a desk or a rack.

According to the invention of claim 12, claim 1
The extension table tap described in 0 or 11 is provided with a switch for turning on / off the power to all the blade receiving springs to be housed in a state where the operation portion of the switch is exposed on one surface. From the tap, the power to each device can be switched on and off at once by a switch.

The invention according to claim 13 is the same as claims 1 to 8.
It is an expansion table tap that is connected to the function expansion type table tap described in any one of 1., and since it has a noise / surge absorbing element between the power supply and the power supply of the insertion port, this expansion table tap functions. If you connect to the extension table tap, this function extension table tap will be noisy.
The effect of the surge absorbing element can be obtained.

The invention according to claim 14 is the invention according to claims 1 to 8.
An expansion table tap connected to the function expansion type table tap according to any one of claims 1 to 4, wherein the insertion ports are formed on the one surface for a plurality of plugs, and the plurality of insertion ports are formed under the insertion ports. Since the blade receiving springs are stored and the retaining means for retaining the blades inserted into the insertion ports is provided, the power plug of the device is inserted into the insertion port on one surface of the additional table tap. At this time, the power plug is prevented from coming off from the insertion port of the additional table tap by the coming-off preventing means, so that the reliability of the connection is improved.

[Brief description of drawings]

FIG. 1 is a front view of various function addition type table taps and an addition table tap according to the first embodiment, which are connected to each other.

2 (a), (b), (c), (d), (f)
FIG. 5 is a front view, a lower side view, a rear view, a left side view and a right side view of the extension table tap located at the left end of FIG.

FIG. 3 is a circuit diagram of a lightning surge protection function section included in the additional table tap.

FIG. 4 is an explanatory diagram of an effect of the lightning surge protection function unit.

FIG. 5 is a front view, a lower side view, a rear view, a left side view and a right side view of an extension table tap located in the center of FIG. 1 (d).

FIG. 6 is a circuit diagram of a noise / surge reduction function unit included in the additional table tap.

FIG. 7 is a front view, a lower side view, a rear view, a left side view and a right side view of an extension table tap located at the left end of FIG. 1 (e).

FIG. 8 is a front view, a lower side view, a rear view, a left side view and a right side view of an extension table tap located in the center of FIG. 1 (f).

9A and 9B are a front view, a lower side view, a rear view and a left side view of the function addition type table tap shown in FIGS.

FIG. 10 is an enlarged view of FIG.

FIG. 11 is a front view of various function-expanding table taps according to the first embodiment.

FIG. 12 is a front view, a lower side view, a rear view, a left side view and a right side view of an extension table tap according to a third embodiment.

FIG. 13 is an explanatory diagram of a usage example of the additional table tap according to the third embodiment.

[Explanation of symbols]

1, 1A, 1B, 1C Function addition type table tap 10 Table tap main body 100A Insert port 101 Insert port 102 Illuminated switch 103 Breaker 103a Switch 104a, 104b, 104c Display window 105 Buzzer sound output window 11, 11A Power supply connection part 110 Plug Blades 2, 2A, 2B, 2C, 2D, 2F Expansion Table Tap 200 Blade Receiving Spring 201 Insert Port 202 Plug Blade 203 Telephone Modular Jack 204 Lightning Surge Protection Function 204a Display Window 205 Noise / Surge Reduction Function 206 Illuminated switch

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H01R 13/70 H01R 13/70 13/717 13/717 24/00 31/02 B 31/02 23/02 A F-term (reference) 5E021 FA03 FA05 FA10 FA16 FB07 FB21 FC13 FC14 FC36 HC11 MA02 MA03 MA05 MA06 MA09 MA16 MA17 MA18 MA19 MB01 MB11 5E023 AA02 AA04 AA11 AA24 AA26 AA29 BB02 BB03 DD28 EE03 GG10 GG13 HH11 HH18 HH27 HH29 5E087 EE10 EE14 FF02 FF06 HH01 JJ08 LL26 LL33 MM09 PP08 QQ03 RR14 RR16 RR43

Claims (14)

[Claims] 1. An insertion port for inserting a plurality of blades provided in one plug is formed on at least one plug of a rectangular one surface, and a short side orthogonal to the one surface. A power supply connection portion is provided on one side surface on the hand side, and a rectangular table for storing a plurality of blade receiving springs for electrically connecting the plurality of blades to the power supply connection portion under the insertion opening. A tap body is provided, and an insertion port for inserting a plurality of blades provided in one plug is formed on at least one surface for each plug, and on one side surface orthogonal to this one surface. A plurality of blade blades are projected, and a flat rectangular extension table tap that stores a plurality of blade receiving springs electrically connected to these blade blades under the insertion port is attached to the table tap body. With a function addition type table tap that expands the function by connecting Then, on the other side surface on the short side orthogonal to the one surface of the table tap body, there is an insertion port for inserting a plurality of blades protruding from the one side surface of the additional table tap. An additional function type table tap, which is formed and accommodates a plurality of blade receiving springs that are electrically connected to the power source connecting portion under the insertion port. 2. The power supply connecting portion is a power cord having a plug having a plurality of blades attached to one end thereof and containing a plurality of electric wires electrically connected to the plurality of blades in an insulated state from each other. A plurality of blade receiving springs housed under the insertion port on one surface of the table tap body are electrically connected to the plurality of electric wires at the other end, respectively. Function addition type table tap described. 3. The power supply connecting portion is a plurality of blades projectingly provided on one side surface of the table tap body, and a plurality of blade blades housed under an insertion port on the one surface of the table tap body. The function addition type table tap according to claim 1, wherein the blade receiving spring is electrically connected to each of a plurality of blades protruding from one side surface of the table tap body. 4. The table tap body is provided with a switch for turning on and off the power from the power source connecting section in a state where the operation section of the switch is exposed on one surface of the table tap body. The function addition type table tap according to any one of claims 1 to 3. 5. The table tap body according to claim 1, further comprising retaining means for retaining a blade inserted into an insertion port on the other side surface of the table tap body. Function addition type table tap described in either. 6. The table tap body is provided with a breaker for stopping the power supply from the power supply connection section when the power supply amount from the power supply connection section reaches 1500 W or more. Addition-type table tap described in any of. 7. The table tap body has a power supply amount of 100 W, 500 W, 1000 from the power supply connecting portion.
The function-expansion-type table according to any one of claims 1 to 3, further comprising: Tap. 8. A plug having a plurality of blades, a cord portion including a plurality of electric wires electrically connected at one end to the blades of the plug in an insulated state, and a plurality of cord portions. Of the electric wire and a jack for accommodating a plurality of blade receiving springs electrically connected to each other at the other end, and the jack of the power cord is connected to the plurality of blades serving as the power connecting portion. The function addition type table tap according to claim 3, wherein the table tap is added. 9. An extension table tap connected to the function extension type table tap according to claim 1, wherein an input side and an output side are provided on the other side surface orthogonal to the one side surface. An additional table tap that is equipped with one telephone modular jack of each of the above, and is provided with lightning surge protection means for these telephone modular jacks and a plurality of blade receiving springs to be stored. 10. An extension table tap connected to the function extension type table tap according to claim 1, wherein the one insertion surface is formed with a plurality of plugs. The plurality of blade receiving springs are housed under the respective insertion openings, and the plurality of blades projecting from one side surface of the additional table tap are movable at 90 degrees. Table tap for expansion. 11. An extension table tap connected to the function extension type table tap according to claim 1, wherein the one insertion surface is formed with a plurality of plugs. The plurality of blade receiving springs are housed under these insertion openings, respectively, and the plurality of blades protruding from one side surface of the additional table tap are movable at 180 degrees. Table tap for expansion. 12. A switch for turning on / off the power supply to all the blade receiving springs to be housed is provided with the operation portion of the switch exposed on one surface.
Extension table tap described in 0 or 11. 13. An extension table tap connected to the function extension type table tap according to claim 1, wherein noise between the power source of the insertion port and the power source of the outlet is generated.
An additional table tap that is equipped with a surge absorbing element. 14. An extension table tap connected to the function extension type table tap according to claim 1, wherein the one insertion surface is formed with a plurality of plugs. An expansion table tap, characterized in that the plurality of blade receiving springs are housed under these insertion openings, respectively, and a retaining means for retaining the blades inserted into the insertion openings is provided.