JP2002184541A - Receptacle strip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a receptacle strip with improved productivity and cost reduction. SOLUTION: The inner section 10 of tap blade insertion holes 11 formed on a front side for plug tap blades to be inserted in, and blade-rest springs 31 for accepting the tap blades housed on the inner section 10 and inserted inside from the tap blade insertion holes 11 are provided, and also, a plug outlet main body 14 to which electricity is supplied from an outside power source through a power source cable 50, and an outer half 40 consisting of an outer cover 40a having an exposure window 43 for exposing the tap blade insertion holes and covering the plug outlet main body 14 and an outer body 40b are provided. The outer half 40 is structured by ultrasonic welding of the outer cover 40a and the outer body 40b. Since screws are not used as in a conventional screwed-down outer cover and outer body, the number of parts is reduced and a man-hours for fastening of screws is saved, realizing improvement of productivity and cost reduction.

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, an inner shell formed with a blade insertion hole into which a plug blade of a plug is inserted is formed on the front side, and a blade receiving spring which is housed in the inner shell and receives the blade inserted therein. There is provided a power strip having an outlet main body provided, and an outer cover including an outer cover and an outer body that expose the plug blade insertion hole to cover the outlet main body.

In the above conventional table tap, an outer shell is formed by screwing an outer cover and an outer body.

[0004]

However, in order to screw the cover and the body, screws are required, the number of parts is increased, and it takes time to tighten the screws, resulting in poor productivity and cost. There was such a problem.

An object of the present invention is to solve the above problems, and to provide a table tap which improves productivity and reduces costs.

[0006]

To achieve the above object, according to the present invention, there is provided an inner shell in which a plug blade insertion hole into which a plug blade of a plug is inserted is formed on the front side, An outlet main body which is stored and receives a blade inserted therein from the blade insertion hole and receives power from an external power supply via an external wire, and an exposure window for exposing the blade insertion hole. An outer cover for covering the outlet body and an outer shell comprising an outer body, wherein the outer shell is formed by ultrasonically welding the outer cover and the outer body, and the conventional outer cover and outer body are screwed together. By not requiring screws compared to
The number of parts can be reduced, and the time required for screw tightening can be reduced, thereby improving productivity and reducing costs.

According to a second aspect of the present invention, in the first aspect of the present invention, a plurality of projections protruding to the other side are formed on the welding surface of at least one of the outer cover and the outer body. When the outer cover and the outer body are ultrasonically welded, a plurality of projections are melted and poured between the projections, and the molten member spreads over substantially the entire welding surface and is solidified, so that the outer cover and the outer body are solidified. Can be welded substantially uniformly on the welding surface, and the fusion member can be prevented from protruding from the welding surface.

According to a third aspect of the present invention, in the first or second aspect of the present invention, a recess is provided in the outer shell in which the magnet is exposed with one surface exposed, and the magnet is detachably fixed to the recess. When the magnet is housed in the recess and fixed by the fixing portion, the magnet can be temporarily fixed to, for example, a side surface of a steel desk or cabinet formed of a member to which the magnet is attracted. To avoid getting in the way.

According to a fourth aspect of the present invention, in the third aspect of the present invention, a lid is provided to cover an opening surface of the recess.
When the magnet is not housed in the recess, the cover can close the recess to prevent dust from entering the recess.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects of the present invention, a switch for turning on / off power supply from an external power supply to the outlet body is provided. When is connected, by turning on / off a switch, it is possible to supply power to the electric device without power switch of the electric device or to stop the power supply, and furthermore, the electric device When a plurality of devices are connected, power can be supplied to the plurality of electric devices at the same time, or power can be stopped, so that usability can be improved.

According to a sixth aspect of the present invention, in the fifth aspect of the present invention, the switch is disposed inside the outer shell, and has the same effect as in the fifth aspect.

According to a seventh aspect of the present invention, in the fifth aspect of the present invention, the switch is disposed outside the outer shell, and the switch can be provided as desired without being limited to a place where the outer shell is disposed. It can be placed at a location and operated on / off, thus further improving usability.

According to an eighth aspect of the present invention, in any one of the first to seventh aspects of the present invention, there is provided a noise reducing means for reducing noise that enters the outlet main body from an external power supply via an external electric wire, It is possible to prevent the intrusion of noise into the electric device connected to the outlet main body and to operate the electric device stably.

According to a ninth aspect of the present invention, in any one of the first to ninth aspects of the present invention, the outlet main body is provided with a connection portion that is electrically connected to an internal blade receiving spring, and the plurality of outlet main bodies are provided with respective blades. It is characterized in that the receiving spring is connected via a connecting portion and is covered with an outer shell. For example, if there are a 2-port outlet main body and a 4-port outlet main body, each of the outer shells corresponds to each outlet main body. By forming the power strips for two and four ports, the power strips for two ports and four ports can be combined with each other when forming the power strip for six ports. By connecting via a connection part and covering with a six-port outer shell, it is possible to use six ports without using a six-port outlet body.
A table tap for an individual opening can be configured, and the members can be diverted to reduce the cost.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiment 1) In this embodiment, as shown in FIG. 1, one to six sets of blade insertion holes 11 into which plug blades are inserted are formed on the front side. The hull 10 includes a pair of blade receiving springs 31 that are housed in the inner hull 10 and receive the blade inserted therein from the blade insertion hole 11, and are supplied with power from an external power supply via a power cable 50. Outer shell 40 composed of an outer cover 40a and an outer body 40b having an outlet main body 14 for six ports and an exposure window 43 for exposing each set of the blade insertion holes 11 to cover the outlet main body 14.
And

The power cable 50 has two core wires 51, 51 coated with insulation. The core wires 51 are separated from each other on the side opposite to one end of the power cable 50 connected to an external power source. A substantially rectangular flat-shaped flange portion 52 is formed on the base portion and protrudes in a direction substantially perpendicular to the longitudinal direction along the outer periphery of the power cable 50. Cover the inner core wire 5
A bushing portion 53 for preventing disconnection due to the bending of the bush 1 is formed.

The inner shell 10 includes an inner cover 10a made of synthetic resin and an inner body 10b formed in an elongated, substantially rectangular box shape with one surface opened. A partition wall 12 that divides the inside into approximately two equal parts in the short width direction is provided at a substantially central portion of the bottom surface in the inner body 10b so as to project toward the opening surface side. On the front side of the inner cover 10a and at a portion corresponding to the blade receiving spring 31 housed in the inner shell 10, one-to-six sets of blade insertion holes 11 are formed, and the inner cover is provided for each set. It is arranged along the longitudinal direction of 10a. Further, fixing recesses 13 for fixing the inner shell 10 to the outer body 40b are formed at both ends in the longitudinal direction of the inner cover 10a and where the side surfaces along the longitudinal direction and the front surface are in contact with each other. .

In the inner shell 10, two conductors 30 formed by bending one conductive metal plate are provided. The conductor 30 is a conductive plate piece 32 formed in an elongated substantially flat plate shape.
And six blade receiving springs 31 arranged at intervals along the longitudinal direction of the conductive plate piece 32, and connected to the core wire 51 of the power cable 50 at one longitudinal end of the conductive plate piece 32. A power supply terminal piece 33 and a connection terminal piece 34 at the other end of the conductive plate piece 31 in the longitudinal direction and having, for example, a through-hole 34a for connecting to another conductive plate piece 32 or an electric wire are provided. The blade receiving spring 31 is constituted by one to six sets from the conductor 30 of FIG. The blade receiving spring 31 is composed of two contact pieces 31a that sandwich one plug blade and make electrical contact.

The power supply terminal piece 33 is integrally provided with a crimping portion 33a to which the core wire 51 is connected by crimping. The caulking portion 33a is provided with a core wire 5 inside.
By inserting and caulking 1, the electrical and mechanical connection between the core wire 51 and the power supply terminal piece 34 can be easily and reliably performed.

The two conductors 30, 30 described above are
The two conductors 30, 30 are respectively housed in each space divided by the partition wall 12 in the inner body 10b, and are electrically insulated from each other by the partition wall 12. Then, the inner cover 10a is attached to the inner body 10b so as to cover the opening surfaces of the inner cover 10a so as to substantially face each other. The outlet main body 14 is assembled by placing the conductors 30 in the inner shell 10 as described above. At this time, the connection terminal pieces 34 and 34 and the power supply terminal pieces 3 of the respective conductive plate pieces 32 and 32 are assembled.
Reference numerals 2 and 32 respectively protrude outward from both ends in the longitudinal direction of the inner shell 10.

The outer shell 40, like the inner shell 10, comprises an outer cover 40a made of synthetic resin and an outer body 40b formed in a slender, substantially rectangular box shape with one side open.

A tongue 41 projecting outward in the longitudinal direction is provided on the bottom surface at both ends in the longitudinal direction of the outer body 40b. The tongue 41 is inserted with, for example, a screw attached to a wall or the like. A through hole 41a for fixing the present embodiment to a wall surface is formed in a ball-shaped hole.
A concave portion 44b for inserting the power cable 50 into the inside of the outer shell 40 is formed in a peripheral portion of the peripheral wall 42b at one longitudinal end of the outer body 40b, and two ribs 45a are formed from the bottom of the outer body 40b. Peripheral wall 4 around 44b
Projection is provided so as to be substantially opposed to 2b with a gap.
Further, the outlet body 1 on the bottom surface of the outer body 40b.
At a portion corresponding to the four fixing recesses 13, a substantially rectangular flat plate-shaped locking piece 46 protruding toward the opening surface side is provided so as to be flexible, and a locking claw 46 a is provided at the tip of the locking piece 46. , Inner cover 10 in fixing recess 13 of outlet body 14
a locking surface 13a which is substantially parallel to the front surface and protrudes from the locking surface so as to be freely released. Furthermore, a substantially rectangular bulging portion 47 'is formed on the bottom surface side by bulging the bottom surface on both ends in the longitudinal direction of the outer body 40b toward the opening surface side, and a magnet for accommodating a magnet 60 described later on the back side. Recess 47 is provided.

On the other hand, on the front side of the outer cover 40a, a substantially rectangular exposure window 43 for exposing one to six sets of the blade insertion holes 11 of the outlet main body 14 accommodated therein for each set is provided. Are formed along the longitudinal direction. When the outer body 40b and the respective opening surfaces are substantially opposed to each other, the outer cover 40a
The peripheral edge a is formed so as to contact the peripheral edge of the peripheral wall 42b of the outer body 40b. Further, a power cable 5 is provided on a peripheral portion of the peripheral wall 42a at one end in the longitudinal direction of the outer cover 40a.
A concave portion 44 a for inserting the “0” into the outer shell 40 is formed.

When the outlet main body 14 is housed in the outer shell 40, the power supply terminal strip 3
3, each of the core wires 51 of the power cable 50 is connected, and the outlet main body 14 is placed in the outer body 40b.
At this time, when the outlet body 14 is inserted into the outer body 40b while bending the locking pieces 46 of the outer body 40b outward, and is inserted to the bottom side of the outer body 40b, the locking claws 46a of the locking pieces 46 However, the outlet main body 14 is fixed to the outer body 40b by engaging with the locking surface 13a of the fixing recess 13 of the outlet main body 14. Then, the flange 52 of the power cable 50 is connected to the recess 4 of the peripheral wall 42b.
It is inserted between the periphery of 4b and the two ribs 45a, and a part of the bushing part 53 is housed in the concave part 44b.

Next, the outer cover 40a is disposed so that the respective opening surfaces are substantially opposed to the outer body 40b, and the peripheral edge of the peripheral wall 42a of the outer cover 40a is brought into contact with the peripheral edge of the peripheral wall 42b of the external body 40b. At this time, the outlet body 1
4 are exposed through the exposure window 43 of the outer cover 40a and the recesses 4 of the outer cover 40a.
4a and the concave portion 44b of the outer body 40b, an insertion hole 44 is formed, and the power cable 50 is inserted through the insertion hole 44.
Is pulled out of the outer shell 40.

In this embodiment, the outer cover 40a is attached to the outer body 40b by the respective peripheral walls 42a, 42b.
The outer periphery is fixed by welding the periphery by ultrasonic welding. This eliminates the need for screws as compared with the conventional screwing, so that the number of components can be reduced, the time required for screw tightening can be reduced, and productivity can be improved and cost can be reduced.

Further, in the present embodiment, as shown in FIGS. 2 and 3, along the peripheral edge of the peripheral wall 42b of the outer body 40b,
A plurality of projections 45 projecting toward the peripheral wall 42a side of the outer cover 40a are formed separately from each other. The projection 45 is elongated along the peripheral wall 42b, and is formed such that the cross-sectional shape in a direction substantially perpendicular to the peripheral wall 42b is a substantially triangular shape that is sharp on the distal end side. Thereby, the outer cover 40
When the outer body 40b and the outer body 40b are ultrasonically welded, the plurality of protrusions 45 are melted and the respective protrusions 45 on the peripheral edge of the peripheral wall 42b are melted.
The outer cover 40a and the outer body 40b are substantially uniformly welded along the peripheral edges of the peripheral walls 42a and 42b because the molten resin member is spread over the entire peripheral edge of the peripheral wall 42b and solidified. It is possible to prevent the resin member melted by the ultrasonic welding from protruding from the peripheral edges of the peripheral walls 42a and 42b.

In this embodiment, an AC adapter mounting surface 48a on which an AC adapter 90 shown in FIG. 4A is mounted is provided on the front surface of the outer cover 40a.

Here, the AC adapter 90 is provided on the adapter main body 90a and on a connection surface 92 of the adapter main body 90a, and a pair of blades 91,
91, one end of a power cord 93 for supplying power to the electric device is connected to a side surface adjacent to the connection surface 92 of the adapter main body 90a. In such an AC adapter 90, the other end of the power cord 93 is connected to an electric device such as a personal computer, and supplies DC power to the electric device.

The adapter mounting surface 48a is
a, formed on the front surface of a substantially rectangular flat mounting table 48 arranged around two exposure windows 43 located at both ends in the longitudinal direction of the front surface, and adjacent to the above-described respective exposure windows 43. The size of the adapter mounting surface 48a is substantially the same as the size of the connection surface 92 of the AC adapter 90.

The plug blade 91 of the AC adapter 90,
Reference numeral 91 denotes the exposed window 43 of the outer cover 40a and the inner cover 10a.
When the blades 91 are inserted into the inner shell 10 through the blade insertion hole 11 of FIG.
As shown in (b), the AC adapter 90 is connected to the connection surface 9.
2 is placed substantially facing the AC adapter mounting surface 48a.

By mounting the AC adapter 90 on the AC adapter mounting surface 48a as described above, the connection surface 92
Does not protrude from the front of the outer shell 40, and the adapter body 90a
Can be stabilized against the outer shell 40, and as a result,
The blade 91 of the AC adapter 90 can be prevented from easily falling out of the blade insertion hole 11. Moreover, the adapter mounting surface 48a is connected to the connection surface 92 of the AC adapter 90.
And the AC adapter 90
The other plug blade insertion holes 11 around the plug blade insertion hole 11 into which the plug blade 91 is inserted are not closed by the adapter body 90a, and even when the AC adapter 90 is connected to the present embodiment. A plug can be inserted into the other blade insertion hole 11.

In this embodiment, as shown in FIGS. 5 and 6, the outer body 40b is provided on the back surface at both ends in the longitudinal direction.
A magnet recess 47 in which one side of the magnet 60 is exposed is recessed, and a fixing portion for detachably fixing the magnet 60 to the magnet recess 47 is provided.

The magnet 60 has a substantially rectangular parallelepiped magnet body 60a, which is a magnet itself, and a substantially U-shaped cross section made of a magnetic metal plate such as a steel plate. The magnet body 60a is fixed inside the U-shape inside. The yoke 60b is formed in a block shape. Magnet 60
At the substantially central portion of the yoke 60b at one longitudinal end, a mounting claw 61 is provided.
The mounting claws 62 are integrally provided on both sides of the yoke 60b at the other end in the longitudinal direction of the magnet 60. Further, the mounting claw 62 has an inclined surface 62a that is inclined to the bottom surface side of the yoke 60b at the tip.

The magnet recess 47 has a substantially rectangular opening surface, and a somewhat wide operation recess 47a is formed at one end in the longitudinal direction. In the operation concave portion 47a, an elastic plate piece 47b projecting from the bottom surface toward the opening surface side is provided.
A pair of engaging claws 47c are integrally provided on the inner side of the distal end portion of the elastic plate piece 47b, and the engaging claws 47c are provided.
Has an inclined surface 47d inclined toward the opening surface. Since the elastic plate piece 47b is formed at a distance from the inner wall surface of the operation concave portion 47a and elastically bends and deforms in its thickness direction,
The engaging claw 47c at the distal end can be displaced. An engagement hole 47e is provided near the bottom of the other end of the magnet recess 47 in the longitudinal direction. A fixing portion is constituted by the engagement hole 47e and the elastic plate piece 47b.

When the magnet 60 is fitted and fixed in the magnet recess 47, one end of the magnet 60 is inserted into the magnet recess 47, and as shown in FIG. Is inserted into and engaged with the mounting claw 61. Next, when the other end of the magnet 60 is pushed in the direction shown by the arrow a in FIG. 5, the inclined surface 47d of the engaging claw 47c is pressed by the inclined surface 62a of the mounting claw 62, and the elastic plate piece 47b is pushed. The engaging claw 47c is displaced by being elastically bent in a direction opposite to the magnet 60, and the mounting claw 62 is engaged with the engaging claw 47c as shown in FIG. As a result, the magnet 60 is attached to the mounting claw 61 with respect to the engagement hole 47e of the fixing portion.
Is fixed within the magnet recess 47 by the insertion engagement of the mounting claw 62 and the hooking engagement of the mounting claw 62 with the engagement claw 47c of the fixing portion. The fixing portion of this embodiment has a so-called snap-in structure, and the magnet 60 can be easily attached.

When the magnet 60 is removed from the magnet recess 47, as shown in FIG. 5, between the pair of engaging claws 47c, 47c, between the end of the magnet 60 and the elastic plate piece 47b. For example, the tip of the jig 1 such as a flathead screwdriver is inserted, and the jig 1 is rotated in the direction shown by the arrow b in FIG. As a result, the elastic plate piece 47b elastically bends to the opposite side of the magnet 60 to displace the engaging claw 47c, and the engagement between the mounting claw 62 and the engaging claw 47c is released. And the mounting claw 6 of the magnet 60
When the one end on which the groove 1 is formed is shifted toward the operation concave portion 47, the insertion engagement of the mounting claw 61 into the engagement hole 47e is released, and the magnet 60 is removed from the inside of the magnet concave portion 47.
Is removed.

As described above, in the present embodiment, the magnet recess 47 is provided, and the elastic plate piece 47b and the engagement hole 47e are provided.
By providing the fixing portion made of
Of the present embodiment can be temporarily fixed to, for example, a side surface of a steel desk or cabinet formed of a member to which the magnet is attracted, and is fixed to the magnet recess 47 so as to be rolled on the floor. To avoid getting in the way.

When the magnet 60 is removed from the magnet recess 47, as shown in FIG.
A substantially rectangular flat cover 70 that covers the opening surface of the magnet recess 47 is attached. Thus, the lid 70 closes the magnet recess 47, so that dust can be prevented from entering the magnet recess 47. (Embodiment 2) Since the basic configuration in this embodiment is common to Embodiment 1, the same reference numerals are given to the common parts, and the description thereof will be omitted, and only the characteristic parts of this embodiment will be described in detail. I do.

In this embodiment, as shown in FIGS. 8 and 9, a noise reduction circuit block 71 for reducing noise that enters the outlet main body 14 from the external power supply via the power cable 50 is provided inside the outer shell 40. I have.

The noise reduction circuit block 71 is mounted on a printed wiring board 71a, includes a surge absorber 71b, a capacitor 71c, and a resistor 71d which are respectively connected in parallel, and is connected to a wiring pattern of the printed wiring board 71a. The two connection terminal pieces 34 protruding to the outside of the outlet main body 14 through the lead wires 71e.
Connected to.

In the present embodiment, the provision of the above-described noise reduction circuit block 71 reduces the sharp noise from an external power supply caused by, for example, a lightning strike.
1b, and high-frequency noise from an external power supply is attenuated by a capacitor 71c.
It is possible to prevent noise from intruding into the electric device connected to the blade receiving spring 31 inside 4 and to supply a stable electric power, thereby enabling the electric device to operate stably. (Embodiment 3) Since the basic configuration in this embodiment is common to Embodiment 1, the same parts are denoted by the same reference numerals and the description thereof will be omitted, and only the characteristic parts of this embodiment will be described in detail. I do.

In this embodiment, as shown in FIG. 10, the switch cable 8 is connected to the power cable 50 in the outer shell 40.
6 and connected to an outlet body 14 from an external power source.
A switch 81 for turning on / off the power supply to the outside is provided outside the outer shell 40.

As shown in FIG. 11, the switch 81 swings freely from the inside of the body 81a to the outside through a through-hole 83 provided on one surface of the body 81a made of synthetic resin. And the terminal pieces 81c, 8 protruding from the side of the body 81a opposite to the operation handle 81b.
1c, a contact portion having a movable contact electrically connected to, for example, one terminal piece 81c and a fixed contact electrically connected to the other terminal piece 81c housed inside the body 81a,
An opening / closing mechanism that is driven in accordance with the swing of the operation handle 81b and that opens and closes the contact portion by moving the movable contact of the contact portion to and away from the fixed contact.

The switch 81 is housed in a case 82 having a cover 82a made of a synthetic resin and a body 82b formed in a substantially rectangular box shape with the operation handle 81b exposed.

The case 82 includes a cover 82a and a body 8
2b is fixed by combining the peripheral walls 84a and 84b so that the peripheral edges thereof abut. Peripheral walls 84a, 8 of the cover 82a and the body 82b, respectively.
On the periphery of 4b, there is formed a recess 85 for forming an exposure hole for exposing the operation handle 81a of the switch 81 when the cover 82a and the body 82b are combined as described above. In addition, the peripheral walls 84a, 84
A concave portion 87 is also formed in a portion of the peripheral edge substantially opposite to the concave portion 85 for forming the exposed hole, and when the cover 82a and the body 82b are combined as described above, the peripheral wall 8 is formed.
4a and 84b, the switch 81
The switch cable 86 connected to the
An introduction hole to be introduced inside is formed. In addition, body 8
Two ribs 87a protrude from the bottom surface of 2b so as to be substantially opposed to the inner surface of the peripheral wall 84b around the recess 87 with a gap.

The switch cable 86 has two core wires 86a coated with insulation, and one end connected to the switch 81 is separated for each core wire 86a. Similarly to the above, a substantially rectangular flat plate-like flange portion 86b protruding along the outer periphery in a direction substantially perpendicular to the longitudinal direction is formed. Further, on the side of the flange portion 86b where the core wires 86a are not separated, a switch cable 86 is provided. A bushing portion 86c is formed to cover the outer periphery and prevent disconnection due to bending of the inner core wire 86a.

When the switch 81 is housed in the case 82, the core pieces 86a of the switch cable 86 are connected to the terminal pieces 81c, 81c of the switch 81, respectively.
1 is placed in the body 82b such that the operation handle projects outward through the concave portion 85 for forming the exposure hole. Then, the flange portion 86b of the switch cable 86 is inserted between the periphery of the concave portion 87 of the peripheral wall 84b and the two ribs 87a, and a part of the bushing portion 86c is housed in the concave portion 87.
Attach cover 82a to b. At this time, switch 8
The first operation handle 81b is exposed from the above-described exposure hole,
The switch cable 86 is introduced from the outside into the case 82 via the above-described introduction hole.

At one end of the switch cable 86 on the side of the outer shell 40, a flange portion 86b and a bushing portion 86c are provided separately for each core wire 86a as shown in FIG. ing. Switch cable 86
One of the separated core wires 86a is connected to one core wire 51 of the power cable 50 via a sleeve 72, and the other core wire 86a of the switch cable 86 and the power cable 5 are connected to each other.
0 and the other core wire 51 are connected to the power supply terminal pieces 33 of the two conductive plate pieces 32, respectively. On the other hand, the outer cover 40a and the outer body 40b of the outer
Are assembled, the switch cable recesses 44c forming the switch cable insertion holes through which the switch cable 86 is inserted into the outer shell 40 from the outside are formed by the recesses 44a and 44b.
Are formed in parallel. A rib 45a 'protrudes from the bottom surface of the outer body 40b with a gap formed between the rib 45a' and the peripheral wall 42b located between the recess 44b and the switch cable recess 44c.

Therefore, the outlet main body 14 is placed in the outer shell 40.
Is inserted into the gap between the peripheral wall 42b around the switch cable recess 44c of the outer body 40b and the ribs 45a, 45a '. The switch cable insertion hole is substantially opposed to the periphery of the switch cable insertion hole formed by the switch cable concave portion 44c, and the bushing portion 86c fits in the switch cable insertion hole. As a result, the switch cable 86 is, like the power cable 50, the switch cable insertion hole. Through the outer shell 40.

In the present embodiment as described above, the switch 8
Each time the first operation handle 81b is swung, the body 81a
An internal opening / closing mechanism opens and closes the contact portion to make the two core wires 86a, 86a of the switch cable 86 conductive or non-conductive. As a result, the one core wire 51 of the power cable 50 and the one conductive plate piece 32 The connection with the connection terminal piece 34 is switched between conduction and non-conduction. Thus, the switch 81 is connected to the outlet main body 1 via the power cable 50 from the external power supply.
4 is turned on / off, for example, the outlet body 14
When an electric device is connected to the power device, the operation handle 81b of the switch 81 is swung to supply power to the electric device or stop the power supply without depending on the power switch of the electric device. it can. Further, when a plurality of the electric devices are connected, power can be supplied to the plurality of electric devices at the same time, or the power supply can be stopped, so that usability can be improved. Also,
By arranging the switch 81 outside the outer shell 40, the switch 81 can be arranged at a desired place and turned on / off without being limited to the place where the outer shell 40 is arranged, and the usability is further improved. Can be improved. (Embodiment 4) Since the basic configuration in this embodiment is common to Embodiment 2 or 3, the same parts are denoted by the same reference numerals and description thereof will be omitted. Will be described.

In this embodiment, as shown in FIGS. 13 and 14, one to four sets of plug blade insertion holes 11 'into which plug plug blades are inserted are formed on the front side of the inner shell 10'. Inner section 1
A pair of blade receiving springs 31 ′, each of which has a pair of blade receiving springs 31 ′ that is housed in the hole 0 ′ and receives the blade inserted therein from the blade insertion hole 11 ′.
An inner shell 10 ″ formed on the front side with a one-to-two set of blade insertion holes 11 ′ into which a plug blade of a plug is inserted, and a plug blade housed in the inner shell 10 ″. A two-port outlet body 14 having one to two sets of blade receiving springs 31 ′ for receiving the blades inserted therein from the insertion holes 11 ′.
b, and the outlet main bodies 14a, 14b
Covered in.

As shown in FIG. 14, the inner shell 10 'of the outlet main body 14a is the same as the inner shell 10 of the first to third embodiments.
It comprises an inner cover 10a 'made of synthetic resin and an inner body 10b', each of which is formed in an elongated, substantially rectangular box shape with one surface opened.
In the inner body 10b ', a partition wall 12' is provided at a substantially central portion of the bottom surface so as to substantially divide the inside in the short width direction substantially toward the opening side. On the front side of the inner cover 10a and at a portion corresponding to the blade receiving spring 31 'housed in the inner shell 10', one to four pairs of blade insertion holes 11 'are formed. Are arranged along the longitudinal direction of the inner cover 10a '.

Further, the inner body 10b 'is provided at both ends of the partition wall 12' along the projecting direction.
b 'Body side through hole 15b penetrating from back surface to opening side
Similarly, a portion of the front surface of the inner cover 10a 'which is substantially opposed to the body side through hole 15b is similarly provided.
A cover-side through hole 15a penetrating through Oa 'is formed. Therefore, when assembling the inner shell 10 'by attaching the inner cover 10a' to the inner body 10b ', the inner body 1
0b ', the inner cover 10a' is placed so that the cover-side through-hole 15a communicates with the body-side through-hole 15b, and the rivet 2 is inserted from the back side of the inner body 10b 'into the body-side through-hole 15a.
b, and the tip of the caulking stud 2 is projected from the cover side through hole 15a of the inner cover 10a 'toward the front side. And
By caulking the both ends of the caulking tack 2, the inner cover 10b 'and the inner body 10a' are firmly fixed.

Two conductors 30 'formed by bending one conductive metal plate are provided in the inner shell 10'.
The conductor 30 ′ includes a conductive plate piece 32 ′ formed in an elongated substantially flat plate shape, four blade receiving springs 31 ′ arranged at intervals along the longitudinal direction of the conductive plate piece 32 ′, Body 30 '
It is composed of a power supply terminal piece 33 and a connection terminal piece 34 located at each end in the longitudinal direction, and a one-to-four set of blade receiving springs 31 ′ is composed of the two conductors 30 ′. Also, the blade receiving spring 31
Is composed of two contact pieces 31a 'that make electrical contact with each other by sandwiching one blade.

Here, the contact piece 31a 'of the blade receiving spring 31' of this embodiment is different from the first to third embodiments in that the distal end is formed broadly in a substantially circular arc shape.
On the inner surface of 1a ', there is formed an engagement projection that engages with a through hole formed in the blade and prevents the blade inserted between the contact pieces 31a' and 31a 'from coming off. The plug insertion hole 11 'of the inner cover 10a' is also formed in a substantially arc shape corresponding to the shape of the tip of the contact piece 31a ', and the outlet main body 14a of the present embodiment is provided with a plug plug blade. Is inserted into the blade insertion hole 11 ′, and is rotated, so that the engagement projection of the contact piece 31 a ′ is engaged with the through hole of the blade to prevent the hole from coming off, so as to be a so-called retaining outlet.

On the other hand, the outlet main body 14b is also configured as a retaining outlet like the outlet main body 14a. Like the inner shell 10 ', the inner shell 10 "of the outlet main body 14b has an inner cover 10a" made of a synthetic resin and formed in the shape of an elongated rectangular box having an open surface, and the inner body 10 ".
b ", a portion corresponding to the blade receiving spring 31 'housed inside the front side of the inner cover 10a"
A pair of pairs of substantially arcuate blade insertion holes 11 'are formed.

Further, on one of the peripheral walls 16b substantially opposite in the short width direction at both ends in the longitudinal direction of the inner body 10b, a projecting portion 17b projecting outward is provided, and the projecting portion 17b has an opening of the inner body 10b ". A through hole 18b penetrating in a direction substantially perpendicular to the surface is formed. Similarly to the inner body 10b ", the inner cover 10a" also has a through hole 18a penetrating in a direction substantially perpendicular to the opening surface of the inner cover 10a "in one of the peripheral walls 16a substantially opposite in the short width direction at both ends in the longitudinal direction. The inner body 10
When the inner cover 10a "is attached to the inner body 10b", the inner cover 10a "is attached to the inner body 10b".
Are placed so that the respective through holes 18a and 18b communicate with each other, and the caulking rivet 3 is inserted into the through holes 18b and 18a from the back side of the inner body 10b ″, and the tip of the caulking rivet 3 is connected to the projection 1
7a. Then, the inner cover 10b "and the inner body 10a" are firmly fixed by caulking the both ends of the caulking tack 3.

In the inner shell 10 ", two conductors 30" formed by bending a metal plate are provided. Conductor 30 "
Consists of a conductive plate piece 32 ″ formed in a substantially flat plate shape, two blade receiving springs 31 ′, and connection terminal pieces 34 located at both ends in the longitudinal direction of the conductive plate piece 32 ″. Conductor 3
From 0 ", the blade receiving spring 31 'is configured in one-to-two pairs.

Here, the outlet main body 14 as described above is used.
a, the connection terminal piece 34 of the two conductive plate pieces 32 'of the outlet main body 14b;
4 are overlapped so that the respective through holes 34a, 34a communicate with each other, and are connected by inserting the caulking rivets 4 into the through holes 34a, 34a and caulking both ends. This allows
The four-port outlet main body 14a and the two-port outlet main body 14b are mechanically connected via connection terminal pieces 34, respectively.
The blade receiving spring 31 ′ inside 4 b is electrically connected via the connection terminal piece 34. In addition, the outlet body 14
The noise reduction circuit block 71 is connected to the pair of connection terminal pieces 34, 34 located on the side opposite to the outlet main body 14a in the same manner as in the second embodiment, and as shown in FIG. The noise reduction circuit block 71 is connected in parallel to the load 75 connected to the '.

Here, by covering the outlet main body 14a with a corresponding outer shell, a four-port table tap can be formed. Similarly, by covering the outlet main body 14b with a corresponding outer shell, two outlet taps can be formed. Can be configured for a power strip. Further, when a 6-tap table tap is configured as in the present embodiment, the first embodiment is used.
Without using the outlet main body 14 for 6 ports, the outlet main body 14a and the outlet main body 14b are connected via the connection terminal piece 34 and covered with the outer shell 40,
A table tap for six ports can be configured, and the members can be diverted to reduce the cost. In the present embodiment, the four-port outlet main body and the two-port outlet main body are covered with the outer shell. However, the number of the outlet main bodies covered by the outer shell may be three or more. The number of mouths may be one, three or five or more. (Embodiment 5) Since the basic configuration in this embodiment is common to Embodiments 3 and 4, the same reference numerals are given to the common parts and the description thereof will be omitted, and only the features which are the features of this embodiment will be described in detail. Will be described.

In this embodiment, as shown in FIG. 16, a substantially rectangular mounting hole 49 for mounting a switch 81 is formed on the front surface of the outer cover 40a on the side opposite to the concave portion 44a in the longitudinal direction. It is provided inside the outer shell 40.

On the operation surface of the switch 81 from which the operation handle 81 protrudes, a flange piece 81d is formed to protrude from the body 81a along the operation surface. The pair of bending pieces 81e are formed to be able to bend in the facing direction. Therefore, the switch 81
From the terminal piece 81 c side through the mounting hole 49.
a, the flexible piece 81e is inserted into the cover 40a.
Abuts on the periphery of the mounting hole 49 and bends inward, and the switch 8
When the first flange piece 81d comes into contact with the front surface of the outer cover 40a, the bending of the flexible piece 81e is released, and the distal end portion of the flexible piece 81e and the flange piece 81d sandwich the periphery of the mounting hole 49 of the outer cover 40a. As a result, the switch 81 is set to the operation handle 8.
1b is attached to the outer cover 80 in a state where it is exposed from the front surface of the outer cover 40a. By the way, the operation handle 81b of the switch 81 of the present embodiment is formed of a light-transmitting synthetic resin.
Inside 1b, there is provided a lamp which is turned on when turned on, and a terminal piece 81c 'for supplying power to the lamp.

In the present embodiment, the noise reduction circuit block 71 shown in FIG.
0.

Here, the noise reduction circuit block 71
The connection relationship between the power supply cable 50, the outlet main body 14b, and the switch 81 will be briefly described.

One of the core wires 51 of the power cable 50 is not connected to the power supply terminal piece 33 of the outlet main body 14a inside the outer shell 40, but reaches near the side opposite to the power supply terminal 33 in the longitudinal direction of the outlet main bodies 14a and 14b. And is connected to one terminal piece 81c of the switch 81. Then, the other terminal piece 81c of the switch 81
Is connected to one connection terminal strip 34 of the outlet main body 14b via a lead wire 73. Outlet body 14b
A noise reduction circuit block 71 is connected to the connection terminal strips 34, 34 via lead wires 71e, 71e to apply a load 75 connected to the blade receiving spring 31 'as in FIG. 15 of the fourth embodiment. Connected in parallel. The noise reduction circuit block 71 and the terminal piece 81c 'of the switch 81 are connected by a lead 71e'. When the switch 81 is turned on, the lead 71 is connected to a lamp inside the switch 81.
Electric power is supplied via e ′ and the terminal strip 81c ′, and the lamp is turned on.

After the connection as described above, the switch 81
Is attached to the outer body 40b so that the noise reduction circuit block 71 and the outlet main bodies 14a and 14b are accommodated inside, thereby assembling the present embodiment. At this time, the switch 81 is moved from the front of the outer shell 40. With the operation handle 81b exposed, the outer shell 40
Housed inside.

In the present embodiment, the outlet bodies 14a and 14b are housed in the outer shell 40. However, as shown in FIG. 18, the outlet bodies 14 for six ports may be housed instead of the outlet bodies 14a and 14b. Alternatively, only the surge absorber 71b of the noise reduction circuit block 71 may be connected to the two connection terminal pieces 34 of the outlet main body 14. At this time, one terminal piece 82c of the switch 81
Is connected to one core wire 51 of the power cable 50, and the other terminal piece 82c is connected to one connection terminal piece 34 of the outlet main body 14 via a lead wire 74b.
c ′ is connected to the other connection terminal strip 34 of the outlet main body 14 via the lead wire 74a.

[0069]

According to the first aspect of the present invention, a blade insertion hole into which a plug blade of a plug is inserted is formed on the front side, and is housed in the inner wall and inserted into the inside from the blade insertion hole. An outlet body that is provided with a blade receiving spring for receiving the plug blade, and is supplied with power from an external power supply via an external wire; an outer cover and an outer body that have an exposure window that exposes the plug blade insertion hole and cover the outlet body; Since the outer shell is made by ultrasonic welding of the outer cover and the outer body, it does not require screws compared to the conventional outer cover and outer body screwing,
This has the effect of reducing the number of parts and saving the time required for screw tightening, thereby improving productivity and reducing costs.

According to the second aspect of the present invention, at least one of the outer cover and the outer body is formed with a plurality of projections protruding to the other side on the welding surface, so that the outer cover and the outer body can be superposed. When sonic welding is performed, the outer cover and the outer body are substantially uniformly welded on the welding surface by melting a plurality of protrusions, flowing between the protrusions, and spreading and solidifying the melting member over substantially the entire welding surface. And it is possible to prevent the fusion member from protruding from the welding surface.

According to a third aspect of the present invention, a recess is provided in the outer shell for exposing one side of the magnet and the magnet is provided in the outer shell. When it is fixed in the fixing part by being housed in, it can be temporarily fixed to, for example, the side of a steel desk or cabinet formed of a member to which the magnet is attracted,
This has the effect of avoiding getting in the way of rolling on the floor.

According to the fourth aspect of the present invention, since the cover is provided to cover the opening surface of the recess, when the magnet is not housed in the recess, the cover is closed by the cover to thereby prevent dust from entering the recess. This has the effect of preventing the intrusion of intrusion.

According to the fifth aspect of the present invention, since the switch for turning on / off the power supply from the external power supply to the outlet main body is provided, for example, when an electric device is connected to the outlet main body, the switch is turned on / off. Power can be supplied to or stopped from the electric device without depending on a power switch of the electric device, and when a plurality of the electric devices are connected, power can be supplied to the plurality of electric devices simultaneously. And power supply can be stopped, thereby improving the usability.

The invention according to claim 6 is characterized in that the switch is disposed inside the outer shell, and has the same effect as in claim 5.

According to the seventh aspect of the present invention, since the switch is arranged outside the outer shell, the switch is arranged at a desired place and is turned on / off without being limited to the place where the outer shell is arranged. Therefore, there is an effect that usability can be further improved.

According to the eighth aspect of the present invention, since noise reduction means for reducing noise that enters the outlet main body from an external power supply via an external electric wire is provided, it is possible to prevent noise from entering an electric device connected to the outlet main body. Thus, there is an effect that the electric device can be operated stably.

According to a ninth aspect of the present invention, a connecting portion is provided on the outlet main body to be electrically connected to the internal blade receiving spring, and the plurality of outlet main bodies are connected by connecting the respective blade receiving springs via the connecting portion. Since it is covered with a shell, for example, if there are two outlet sockets and four outlet sockets, each is covered with an outer shell corresponding to each outlet, so that the two taps and four outlet taps are covered. On the other hand, when configuring a six-port power strip, the two-port power outlet body and the four-port power outlet body are connected via a connection portion, and a six-port outer shell is used. By covering, a power tap for six ports can be formed without using a power outlet body for six ports, and there is an effect that members can be diverted and cost can be reduced.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a first embodiment.

FIG. 2 is a perspective view of a main part of the above.

FIG. 3 is a sectional view of a main part of the above.

FIG. 4A is a perspective view of an AC adapter to be connected, and FIG. 4B is a side view when the AC adapter is connected.

FIG. 5 is another perspective view of the same.

6 (a) and 6 (b) are cross-sectional views of main parts of the above.

FIG. 7 is still another perspective view of the above.

FIG. 8 is an exploded perspective view showing the second embodiment.

FIG. 9 is a perspective view of the same noise reduction device.

FIG. 10 is a configuration diagram showing a third embodiment.

FIG. 11 is an exploded perspective view of the switch.

FIG. 12 is an exploded perspective view of a main part of the above.

FIG. 13 is an exploded perspective view of a main part showing a fourth embodiment.

FIG. 14 is an exploded perspective view of the outlet main body.

FIG. 15 is a schematic circuit diagram of the above.

FIG. 16 is an exploded perspective view showing a fifth embodiment.

FIG. 17 is a perspective view of the above noise reduction device.

FIG. 18 is another exploded perspective view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Inner shell 10a Inner cover 10b Inner body 14 Outlet main body 30 Conductor 31 Blade receiving spring 32 Conductive plate piece 40 Outer shell 40a Outer cover 40b Outer body 43 Exposed window 50 Outer wire

 ──────────────────────────────────────────────────の Continuing on the front page (72) Koji Higashide, 1285 Gomono, Misato-mura, Aki-gun, Mie Prefecture Inside Hayama Electric Works, Ltd. Inside Electric Works Co., Ltd. (72) Inventor Atsushi Kawai 1048 Kazuma Kadoma, Osaka Prefecture Inside Matsushita Electric Works Co., Ltd. (72) Inventor Takahiro Matsubayashi 1285 Gomono, Misato-mura, Aki-gun, Mie Prefecture F-term in Hayama Denki Seisakusho Co., Ltd. MM16 PP07 PP08 QQ03 RR04 RR25 RR29 RR47

Claims (9)

[Claims] 1. An inner shell formed on the front side with a blade insertion hole into which a plug blade of a plug is inserted, and a blade receiver received in the inner shell and receiving a blade inserted therein from the blade insertion hole. An outlet main body provided with a spring and supplied with power from an external power supply via an external electric wire, and an outer shell including an outer cover and an outer body having an exposure window for exposing the blade insertion hole and covering the outlet main body. A table tap characterized in that the outer shell is formed by ultrasonically welding an outer cover and an outer body. 2. A plurality of projections protruding to the other side are formed on a welding surface of at least one of the outer cover and the outer body, and each of the plurality of projections is separated from each other.
The described table tap. 3. The magnet according to claim 1, wherein a recess is provided in the outer shell for storing the magnet with one surface exposed, and a fixing portion for detachably fixing the magnet is provided in the recess. Table tap. 4. The table tap according to claim 3, wherein a lid is provided to cover an opening surface of the recess. 5. The power strip according to claim 1, further comprising a switch for turning on / off the power supply from the external power supply to the outlet main body. 6. The power strip according to claim 5, wherein the switch is disposed inside the outer shell. 7. The power strip according to claim 5, wherein the switch is disposed outside the outer shell. 8. The power strip according to claim 1, further comprising noise reduction means for reducing noise entering the outlet main body from an external power supply via an external electric wire. 9. An outlet main body is provided with a connecting portion for electrically connecting to an internal blade receiving spring, and the plurality of outlet main bodies are connected to the respective blade receiving springs via the connecting portions and are covered with an outer shell. The table tap according to any one of claims 1 to 8, wherein: