JP2002216893A - Table tap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a table tap, which suppresses numbers of parts, required for removing tension loaded on a power cord, and is improved in assembling workability. SOLUTION: Two or more nail parts 7 which press the power cord 3 are formed in one to a cover 10 and a body 20 in an inner circumference of a through hole 2 introducing the power code 3 of a husk 1 into its inside. By pressing the power code 3 with the nail parts 7 formed in one to the cover 10 and the body 20, without a necessity of taking another parts like the conventional example, poor contact can be prevented by removing the tension loaded on the connection part with the terminal boards 30a to 30b of the power cord 3, and the assembling workability can be improved by reducing the numbers of the parts.

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, as shown in FIGS. 26 (a), 26 (b) and 27, three terminal plates (not shown) each having a blade receiving spring for receiving a plug blade, An outer shell 1 'comprising a synthetic resin cover 10' and a body 20 'to be housed, and one end of the power cord 3 is provided in the outer shell 1' around the edges of the cover 10 'and the body 20'. A power strip is provided which is introduced into the outer shell 1 ′ via the power cord 2 and the two terminal boards are energized via the power cord 3.

[0003] The power cord 3 is formed by bundling three core wires 3a to 3c, each of which is insulated and coated, and further insulated and coated on the outside thereof. A plug connected to a commercial power supply is attached to the other end opposite to the one end.

[0004] The cover 10 'and the body 20' are each formed in a substantially rectangular box shape having an opening on one side, and substantially semicircular concave portions 12 and 22 are provided on the respective peripheral edges. The outer shell 1 ′ is formed by attaching the cover 10 ′ to the body 20 ′ such that the respective peripheral edges abut. When the outer shell 1 ′ is formed, as shown in FIG. A substantially circular through hole 2 is formed inside and outside the outer shell 1 '.

[0005] A pair of tension removing pieces 90 for removing the tension for pulling the power cord 3 introduced into the outer shell 1 'to the outside are disposed inside the periphery of the concave portion 22 of the body 20'.

[0006] The pair of tension removing pieces 90 are each formed in a substantially plate shape and have elasticity.
a and a fixing rib 91 protruding so as to be substantially opposed to the peripheral wall 20a, one end of which is interposed therebetween, and is fixed in a state of being curved inwardly toward the body 10 'toward the other end. . Further, on the distal end sides of the pair of tension removing pieces 90, claws 90a projecting inward from each other are formed.

When assembling the above-described power strip, first, three terminal boards are housed in the body 20 '. Then, as shown in FIG.
The power cord 3 is placed in the concave portion 22 of the body 20 'such that one end of the power cord 3 exposing the three core wires 3a to 3c is accommodated in the body 20'. At this time, the pair of tension removing pieces 90 bend outward, and each claw 90a is
The power cord 3 is pressed and pinched by the elastic force of zero. Next, the core wires 3a to 3c are connected to the respective terminal boards, and the cover 10 'is attached to the body 20'.

When the power cord 3 is pulled outward after the power strip has been assembled as described above, the frictional force between the pair of tension removing pieces 90 and the power cord 3 causes the pair of tension removing pieces to be pulled out. A force is applied to 90 to incline the tip side toward the through hole 2. As a result, the pair of tension removing pieces 90
The claw 90a of the power cord 3 can press and pinch the power cord 3 with a stronger force to remove the tension applied to the connection portion of the power cord 3 with the terminal board. As a result, the core wire of the power cord 3 can be removed from each terminal board. It is possible to prevent the occurrence of poor contact due to the detachment of 3a to 3c.

[0009]

However, in the above conventional example, in order to remove the tension applied to the power cord 3,
Since the tension removing piece 90 of another part is required, there is a problem that the number of parts is large and the assembling work is troublesome.

An object of the present invention is to solve the above-mentioned problems, and to provide a power strip having a reduced number of components required for removing tension applied to a power cord and having improved assembling workability.

[0011]

SUMMARY OF THE INVENTION In order to achieve the above object, an object of the present invention is to provide a plurality of terminal plates having a blade receiving spring for receiving a blade, a cover for accommodating the plurality of terminal plates therein, and One end side of the external electric wire is introduced into the inside of the outer shell through a cover in the outer shell and a through hole provided around an edge of the body, and a plurality of terminal plates are energized through the outer electric wire. Wherein at least one of the cover and the body around the through-hole of the outer shell is provided integrally with one or more claws for pressing the external electric wire, wherein at least one of the cover and the body is provided. By pressing the external electric wire with the claw portion provided integrally on one side, the tension applied to the connection portion of the external electric wire with the terminal plate is removed without the need for a separate component as in the conventional example, and poor contact is prevented. Prevent and prevent parts It can be the suppressed by improving the assembling workability.

According to a second aspect of the present invention, in the first aspect of the present invention, each of the one or a plurality of claw portions has a substantially triangular pyramid shape, so that the claw portions are easily caught by an external electric wire. In addition, the tension applied to the external electric wire can be more reliably removed.

According to a third aspect of the present invention, in the first or second aspect of the present invention, a rib for supporting one or a plurality of claw portions is provided, so that the claw portions are hardly bent and mechanical strength is increased. Can be.

According to a fourth aspect of the present invention, there is provided the first or second or third aspect.
In the invention, a power indicator lamp is connected to each of the two terminal plates to be energized via a lead wire, and indicates an energized state of the terminal plate by lighting or extinguishing. A light-transmitting portion that emits light from the display lamp to the outside of the outer shell is provided, and a distance between connection points where the lead wires of each terminal plate are connected is longer than at least a distance between the terminal plates. By increasing the distance between the connection points, it is possible to maintain the insulation distance between the lead wires and ensure safety, but also to make it easier to arrange the energization indicator lamp inside the outer shell in a desired state. By arranging the energization indicator lamp so that the surface of the energization indicator lamp facing the light-transmitting portion is increased, the visibility of the energized state of the terminal board by turning on or off the energization indicator lamp can be improved.

According to a fifth aspect of the present invention, in the fourth aspect of the present invention, a rib for surrounding the four circumferences of the energizing display lamp is provided on the body to facilitate positioning of the energizing indicating lamp. In addition to improving the workability of assembly, the leakage of light from the energizing indicator lamp is suppressed, the amount of light emitted from the translucent part is increased, and the energized state of the terminal board is visually recognized by turning on or off the energizing indicator lamp. Properties can be further improved.

According to a sixth aspect of the present invention, in any one of the first to fifth aspects of the present invention, a harness plug for detachably connecting to a power supply harness connector is attached to one end of the external electric wire opposite to the outer shell. For example, the device can be easily connected to a device having a harness connector disposed under the floor via a harness plug, and the usability can be improved.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In this embodiment, as shown in FIG. 1, three terminal plates 30a to 30c each having four blade receiving springs 31 for receiving plug blades, and three terminal plates 30a to 30c.
A middle body 40b made of a synthetic resin for housing two of the terminal plates 30a and 30b out of 30c, a neon lamp 50 as an energization indicating lamp formed to be long in one direction for indicating the energized state of the terminal plates 30a and 30b, A cover 10 made of a synthetic resin for accommodating the middle body 40b, the terminal plates 30a to 30c, and the neon lamp 50 therein, and an outer shell 1 composed of the body 20 are provided. 20 are introduced into the inside of the outer shell 1 through the through holes 2 provided around the edge of
0b is energized via the power cord 3.

Each of the terminal plates 30a to 30c is formed by bending a single metal plate. When the terminal plates 30a to 30c are connected to a commercial power source via the power cord 3, the terminal plates 30a to 30c are formed.
b is a voltage electrode or a ground side electrode, and the terminal plate 30c is a ground electrode. The four blade receiving springs 31 each include two contact pieces 31a that sandwich one plug blade and make electrical contact with each other, and are arranged at substantially equal intervals along the longitudinal direction of each of the terminal plates 30a to 30c. . The tip of each contact piece 31a is
The terminal plates 30a, 30a are formed in a substantially circular arc shape.
On the inner surface of one of the contact pieces 31a of the blade receiving spring 31b, the contact pieces 31a, 31 are engaged with through holes formed in the blade.
engaging projection 33 for retaining the blade inserted between
(See FIG. 10).

The terminal plate 30a has a terminal strip 32a having a screw hole and connected to the core wire 3a of the power cord 3, and similarly, the terminal plates 30b and 30c also have a screw hole. And terminal strips 32b and 32c connected to the core wires 3b and 3c of the power cord 3. Terminal strip 32
a and 32b are respectively located at substantially the center in the longitudinal direction of the terminal plates 30a and 30b, and the terminal strip 32c is located at one end of the terminal plate 30c in the longitudinal direction. Further, the terminal plate 30c
A terminal piece 32d having a screw hole for connecting a ground wire drawn from another device to the terminal plate 30c is formed at one end in the longitudinal direction. Each of these terminal strips 32
When connecting the core wires 3a to 3c or the ground wire to the terminal wires a to 32d, the terminal screws 4 are screwed into the screw holes of the terminal pieces 32a to 32d, and the core wires are connected between the terminal screw 4 and the terminal pieces 32a to 32d. 3a to 3c or the ground wire is inserted.

As shown in FIG. 2, one of lead wires 53 of a resistor 52 is soldered to one of two lead wires 51 extending from one end of the neon lamp 50 in the longitudinal direction. Lead wire 5 including soldered part
1, 53 and the resistor 52 are covered with an insulating tube 54. The one lead wire 51 of the neon lamp 50 is connected to the terminal plate 30b by soldering via a resistor 52 and a lead wire 53 of the resistor 52 at a position slightly shifted from one end in the longitudinal direction to the other end of the terminal plate 30b. The other lead wire 51 of the neon lamp 50 is connected to one longitudinal end of the terminal plate 30a by soldering as described above.

The middle body 40b is formed in an elongated and substantially rectangular box shape with one surface opened, and a plurality of isolation walls 42 for insulating and isolating the terminal plates 30a and 30b housed therein are formed on the bottom surface. ing. In addition, at both ends of the peripheral wall 45 along the longitudinal direction of the middle body 40b,
A fixing projection 43 for fixing b to the body 20 is provided in a protruding manner. Further, in the peripheral portion of the peripheral wall 45 at one end in the longitudinal direction of the middle body 40b, an insertion recess 44 for inserting lead wires 51, 53 connected to the terminal plates 30a, 30b.
a, 44b are formed.

The cover 10 and the body 20 are each formed in an elongated, substantially rectangular box shape with one surface opened.
The cover 10 is formed by screwing and attaching the cover 10 to the body 20 so that the respective peripheral edges abut.

On the front side of the cover 10, a substantially rectangular exposure hole 11 that penetrates the front and back to expose a middle cover 40a described later.
Are formed along the longitudinal direction, and the cover 1
A substantially semicircular concave portion 12 is formed at the peripheral edge at one end in the longitudinal direction (see FIG. 4), as in the conventional example, and the peripheral wall 1 at the other end is formed.
A substantially rectangular terminal recess 13 for exposing the terminal strip 32d of the terminal plate 30c is formed in Oa. Further, on the front surface of the cover 10, on the side of the terminal recess 13 in the longitudinal direction, there is formed a substantially elongated substantially rectangular mounting hole 14 penetrating from front to back similarly to the exposure hole 11. A lamp cover 14a made of a member is attached. By forming the mounting hole 14 in the outer shell 1 and mounting the lamp cover 14a in this manner, a light transmitting portion that emits light from the neon lamp 50 contained in the outer shell 1 to the outside of the outer shell 1 is provided.

A synthetic resin middle cover 40a formed in a substantially rectangular flat plate shape is attached to each of the exposed holes 11 of the cover 10 from the back side. In this inside cover 40a,
Three substantially arcuate blade insertion holes 41 into which the plug blades are inserted are formed.

At both ends in the longitudinal direction of the body 20, tongue pieces 25 projecting outward in the longitudinal direction are provided.
Each of the tongue pieces 25 has a screw insertion hole 25a through which a screw for attaching the body 20 to the construction surface is inserted.

On the peripheral edge at one end in the longitudinal direction of the body 20,
Similar to the conventional example, a substantially semicircular concave portion 22 is formed, and a power cord supporting piece 61 for supporting the power cord 3 introduced therein is provided on the bottom surface of the body 20 with a peripheral wall 20 around the concave portion 22.
A is provided so as to be substantially opposed to a with a gap. Thereby, the power cord 3 introduced inside the body 20
Are arranged in a substantially semicircular power cord recess 61 a provided on the peripheral portion of the power cord support piece 61, and are supported by the power cord support piece 61. Meanwhile, the body 20
A substantially rectangular terminal recess 23 for exposing the terminal strip 32d of the terminal plate 30c is formed in the peripheral wall 20a at the other end in the longitudinal direction.

At a portion of the bottom surface of the body 20 corresponding to each of the fixing projections 43 of the middle body 40b, a substantially flat plate-shaped locking piece 24 protruding toward the opening side of the body 20 is provided to bend freely. At the tip of the locking piece 24 is a locking claw 24
a protrudes from a fixing surface 43a of the fixing protrusion 43 of the middle body 40a which is substantially parallel to an opening surface of the middle body 40a so as to be able to be locked and released.

In addition, on the side of the terminal recess 23 in the longitudinal direction of the bottom surface of the body 20, a substantially rectangular cylindrical lamp housing rib 27 that surrounds the neon lamp 50 and holds the neon lamp 50.
a is erected so that the opening surface faces forward and the longitudinal direction is along the lateral direction of the body. Further, instead of the above-described lamp housing rib 27a, as shown in FIG.
A pair of lamp fixing ribs 27b, 27b, which are substantially parallel to each other and are substantially opposite to each other, project from the bottom surface of the body 20, and the neon lamp 50 is connected to the pair of lamp fixing ribs 27.
b, 27b.

Further, three substantially cylindrical bosses 28 are provided on the bottom surface of the body 20 and formed with an assembly screw insertion hole 28a for inserting the assembly screw 6 for screwing the cover 10 to the body 20. Have been. The assembly screw insertion hole 28a penetrates to the back side of the body 20, and when the cover 10 is attached to the body 20, the assembly screw 6
From the back side of the body 20 into the assembly screw insertion hole 28a. The assembly screws 6 projecting forward from the boss 28
Of the screw hole 1 provided on the back side of the cover 10
5 (see FIG. 6).

By the way, the through hole 2 of the outer shell 1 of this embodiment
The cover 10 and the body 20 around the inner side are provided with a plurality of claws 7 for pressing the power cord 3 introduced therein. The plurality of claw portions 7 protrude from the bottom surfaces of the cover 10 and the body 20 toward the opening surface, and the tip ends are formed in a substantially triangular pyramid shape.

As shown in FIGS. 4 to 6, two sets of three pawls 7 projecting from the bottom surface of the cover 10 are integrally formed, and each set has a gap along the longitudinal direction of the body 20. The three pawls 7 of each set are spaced apart and are arranged along the short direction of the body 20. On the bottom surface of the cover 10, cover-side support ribs 16 that integrally support the base side surfaces of the respective claw portions 7 of each set and support the claw portions 7 are protrudingly provided.

On the other hand, the claw 7 projecting from the bottom of the body 20
As shown in FIG. 7 to FIG.
Are formed on the opposite side of the recess 22 with respect to the power cord supporting piece 61 and are formed integrally with each other.

When assembling the present embodiment as described above, first, a plurality of partition walls projecting from the bottom surface of the body 20 so as to substantially face one peripheral wall 20a along the longitudinal direction of the body 20 with a gap therebetween. 26a and two locking pieces 24
And a terminal plate 30c is disposed between the terminal plate 30c and the terminal plate 30c.

Then, the terminal plates 30a and 30b to which the neon lamp 50 is connected are mounted on the middle body 40b, and the middle body 40b is inserted into the body 20 from the back as shown in FIG. At this time, the middle body 40b flexes the locking pieces 24 of the
When it is inserted inside and is inserted to the bottom side of the body 20, the locking claw 24a of the locking piece 24 locks with the locking surface 43a of the fixing projection 43 of the middle body 40b, so that the middle body 40b is It is fixed to the body 20.

Thereafter, as shown in FIG. 11, the neon lamp 50 is inserted into the lamp housing rib 27a inside the body 20.
The neon lamp 50 is held by the lamp accommodating rib 27a so that the longitudinal direction is arranged along the shorter direction of the body 20.
With such a lamp housing rib 27a, the neon lamp 50 is easily positioned, and the assembling workability is improved.
When the neon lamp 50 is disposed on the lamp housing rib 27a, one of the lead wires 51 of the neon lamp 50
The lead wire 51, the resistor 52 connected to the lead wire 51, and the lead wire 53 are isolated from each other by an isolation wall 26b protruding from the bottom surface of the body 20.

Next, the power cord 3 is stripped of the insulating coating, and the power cord 3 is inserted into the concave portion 22 of the body 20 so that one end of each of the core wires 3a to 3c is located inside the body 20.
And a power cord recess 61 of a power cord support piece 61.
a. At this time, the power cord 3 is located in front of the three claws 7 of the body 20. And each core wire 3a ~
3c is connected to the terminal plate 30a as described above.
30b to terminal strips 32a to 32c.

Next, the cover 10 in which the middle cover 41 is attached to the body 20 is screwed with the assembling screws 6 described above.

In this embodiment, when the cover 10 is attached to the body 20 by screwing, as shown in FIG.
2, the power cord 3 is led out of the outer shell 1 through the through hole 2, and the plurality of claw portions 7 provided integrally with the cover 10 and the body 20 are formed. Press the power cords 3 respectively. Thereby, the tension applied to the connection portion between the power cord 3 and the terminal plates 30a to 30c is removed without requiring a pair of tension removing pieces 90 unlike the conventional example, and the core wires 3a to 3c of the power cord 3 are removed.
It is possible to prevent a contact failure such as that c is detached from the terminal boards 30a to 30c, to suppress the number of parts, and to improve the assembling workability. In addition, by making the tip shape of each claw portion 7 into a substantially triangular pyramid shape, the claw portion 7 can be easily hooked on the power cord 3, and the tension applied to the power cord 3 can be more reliably removed. be able to.

Furthermore, as described above, the cover 20 is provided with the cover-side supporting ribs 16 for supporting the claw portions 7, so that the claw portions 7 are hardly bent, and the mechanical strength can be increased.

As in the case of the cover 10, FIGS.
As shown in FIG. 4, two body-side supporting ribs 29 projecting from the bottom surface of the body 20 along the longitudinal direction of the body 20, and one end of each rib 29 in the longitudinal direction is connected to the three claw portions 7 of the body 20. The two pawls 7 may be integrally connected to the base side surfaces of the two pawls 7 at both ends, and the body-side supporting ribs 29 may support the two pawls 7. As a result, the claw portion 7 on the body 20 side is hardly bent like the claw portion 7 on the cover 10 side, and the mechanical strength can be increased.

By the way, conventionally, FIGS. 15A and 15B
As shown in FIG.
The lead wire 53 of the resistor 52 connected to the first and the other lead wire 51 was connected to one longitudinal end of each of the terminal plates 30a and 30b '. As a result, the terminal plates 30a,
The distance between the connection points of 30b 'is the same
The distance between the neon lamps 50
The neon lamp 50 can be freely placed in a narrow space of the body 20 while keeping the insulation distance by separating the other lead wire 51 and the lead wire 53 of the resistor 52 connected to the lead wire 51 from the one lead wire 51. Could not be arranged. For example, even if it is attempted to arrange the neon lamp 50 such that the longitudinal direction of the neon lamp 50 is aligned with the short direction of the body 20, one lead wire 51 and the other lead wire 5
As a result, the distance between the first and the third is reduced, and the insulation distance cannot be maintained. Therefore, the neon lamp 50 is inserted and held from the front end side in the lamp housing 92 formed in a substantially rectangular tube shape so that the longitudinal direction is substantially perpendicular to the bottom surface of the body 10 ′.

As a result, the neon lamp 5 viewed from the front side
1 is smaller than the light emitting surface viewed from the side, and FIG.
As shown in FIG. 6, the neon lamp 5 on the cover 10 '
0, a small lamp cover 14 corresponding to the size of the light emitting surface as viewed from the front side of the neon lamp 50 is provided.
a 'was provided.

In the above conventional example, even if the neon lamp 50 emits light, the amount of light emitted from the neon lamp 50 emitted to the outside through the lamp cover 14a 'forward is small.
There is a problem that the visibility of the energized state of the terminal plates 30a and 30b 'is low.

Therefore, in this embodiment, as described above,
Connect one lead wire 51 of the neon lamp 50 to the terminal plate 30a.
And the lead wire 53 of the resistor 52 connected to the other lead wire 51 is connected to the terminal plate 30b at a position slightly shifted from one longitudinal end to the other end thereof,
The distance between the connection points of the terminal plates 30a, 30b with the lead wires 51, 53 is longer than the distance between the terminal plates 30a, 30b. Thus, the neon lamp 50 can be easily arranged inside the body 20 in a desired state. In the present embodiment, the light emitting surface of the neon lamp 50 facing the lamp cover 14a is increased so as to be large.
As shown in FIG. 1 and FIG. 17, the longitudinal direction of the neon lamp 50 is
Is disposed on the body 20. As a result, as shown in FIG. 18, by providing the lamp cover 14a which is larger than the conventional one in accordance with the size of the light emitting surface of the neon lamp 50, the terminal plate 3 by turning on or off the neon lamp 50 is provided.
The visibility of 0a and 30b can be improved.

When the neon lamp 50 is disposed in the lamp accommodating rib 27a, the periphery of the neon lamp 50 is surrounded, so that the lamp fixing ribs 27b and 27b shown in FIG.
As compared with the case where the light is held between the neon lamps 27b, the light from the neon lamp 50 is suppressed from leaking in directions other than the front side, and the amount of light emitted to the outside through the lamp cover 14a is further increased. The visibility of the lamp 50 can be further improved.

As shown in FIG. 19, magnets 5 are provided on both ends in the longitudinal direction of the back surface of the body 20 of this embodiment.
The magnet recess 21 for receiving the magnet is recessed.

The magnet 5 has a substantially rectangular parallelepiped magnet body 5a, which is a magnet itself, and a magnetic metal plate such as a steel plate, and has a substantially U-shaped cross section. The magnet body 5a is accommodated and fixed inside the U-shape. The yoke 5b is formed in a block shape. At substantially the center of the yoke 5b at one end in the longitudinal direction of the magnet 5, a mounting claw 5c is integrally extended,
At both sides of the yoke 5b at the other end in the longitudinal direction of the magnet 5, mounting claws 5d are provided integrally. The mounting claw 5d has an inclined surface 5e at the distal end, which is inclined toward the bottom surface of the yoke 5b.

The magnet recess 21 has a substantially rectangular opening surface, and has a slightly wider operation recess 2 at one end in the longitudinal direction.
1a is formed. In the operation concave portion 21a,
An elastic plate piece 21b protruding from the bottom surface toward the opening surface side is provided, and a pair of engaging claws 21c is integrally provided on the inner side of the distal end portion of the elastic plate piece 21b. It has an inclined surface 21d inclined to the surface side. The elastic plate piece 21b is formed at a distance from the inner wall surface of the operation concave portion 21a and elastically bends and deforms in its thickness direction, so that the engaging claw 21c at the distal end can be displaced. In the vicinity of the bottom on the other end in the longitudinal direction of the magnet recess 21, an engagement hole 2 is provided.
1e (see FIG. 17).

When the magnet 5 is fitted and fixed in the magnet recess 21, one end of the magnet 5 is inserted into the magnet recess 21 and the magnet recess 2 is inserted.
The mounting claws 5c are inserted into and engaged with the above-described engaging holes 21e in the device 1. Next, when the other end of the magnet 5 is pushed inward, the inclined surface 21d of the engaging claw 21c is pressed by the inclined surface 5e of the mounting claw 5d, and the elastic plate piece 21b is
Elastically flex in the opposite direction to displace the engagement claw 21c, and the mounting claw 5d is engaged with the engagement claw 21c. As a result, the magnet 5 is fixed in the magnet recess 21 as shown in FIG. When the magnet 5 is fitted into the magnet recess 21 in this manner, 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,
You can avoid rolling on the floor and getting in the way.

When removing the magnet 5 from the magnet recess 21, the pair of engaging claws 21c, 21c
Between the end c and the end of the magnet 5 and the elastic plate piece 21b, a tip such as a flathead screwdriver is inserted and rotated. Thereby, the elastic plate piece 21b is elastically bent to the opposite side to the magnet 5, and the engaging claw 21c is displaced.
The engagement between the mounting claw 5d and the engagement claw 21c is released. When the one end of the magnet 5 where the mounting claw 5c is formed is shifted toward the operation concave portion 21a, the engagement hole 21e is formed.
Is disengaged from the mounting claw 5c, and the magnet 5 is removed from the inside of the magnet recess 21.

By assembling the magnet 5 to the body 20 as described above, as shown in FIGS. 21 to 24, a three-pole type plug having a
The power strip 3 is completed in a state where the power strip 3 is connected to the power strip 3. The blade receiving springs 31 of the terminal plates 30a to 30c are provided inside the respective blade insertion holes 41 on the front surface of the cover 10, and the blades of the plugs are inserted into the blade insertion holes 41 and rotated to thereby rotate the blades. The engaging projection 33 of the contact piece 31a is engaged with the through hole, and the plug blade of the plug is prevented from coming off.

As shown in FIG. 22, a substantially rectangular terminal hole 8 formed by the terminal recesses 13 and 23 of the cover 10 and the body 20 allows a terminal piece 32d of the terminal plate 30c to be formed.
Are exposed, as described above, this terminal strip 32
The ground and the terminal strip 32d are connected by holding the ground wire of the other device between the terminal screw d and the terminal screw 4 and screwing and tightening the terminal screw 4, thereby connecting the device connected to the ground wire. Can be grounded.

In recent years, in an office building or the like, a wiring space for routing a wiring cable is provided between an underfloor slab and a floor of a room so that floor wiring can be freely performed according to a layout in a room. A floor wiring system (a so-called free access floor) is provided, and a branch connecting device having a power trunk from a distribution board and a harness connector connected to the power trunk is provided under the floor. .

Here, a harness plug 70 is attached to one end of the power cord 3 connected to the present embodiment on the side opposite to the outer shell 1 so as to be detachably connected to the harness connector.

As shown in FIGS. 23 to 25, the harness plug 70 is connected to a housing 71 for introducing one end of the power cord 3 therein, and to the core wires 3a to 3c of the power cord 3, respectively. Three blades 73 protruding from the bottom surface of the concave portion 72 formed on the front surface;
It has a locked portion of a mating harness connector to be fitted therein and a lock body 74 that is releasably locked.
Since the structure of such a harness plug 70 is conventionally well-known, detailed description will be omitted.

When the harness plug 70 is connected to the harness connector, when the harness plug 70 is pressed against the harness connector so that the harness connector 52 is inserted into the concave portion 72, the plug blade 73 of the harness plug 70
The blade 73 is inserted into a blade insertion hole formed in the end face of the harness connector, and the blade 73 is electrically connected to a blade receiving spring provided in the blade insertion hole. Further, when the harness connector is fitted into the concave portion 72 of the harness plug 70, the lock body 74
The locking claw provided at the front edge of the lock body 74 is pushed up by hitting the end face of the harness connector, and the lock body 74 rotates. Then, the harness connector is connected to the recess 7 of the harness plug 70.
When the harness plug 2 is completely fitted, the locked portion of the harness connector and the locking claw are locked, and the harness plug 70 is prevented from coming off.

When the harness plug 70 is detached from the harness connector, when the rear end portion 74a of the lock body 74 is pushed in, the lock body 74 rotates in the opposite direction to the above, and the locking claw and the locked portion When the harness plug 70 is pulled backward in this state, the harness connector can be disconnected from the harness plug 70.

By attaching the harness plug 70 to one end of the power cord 3 as described above, the present embodiment can be used for a free access floor, and the usability can be improved.

Further, when the power cord 3 is pulled out from under the floor to above the floor and the present embodiment is arranged on the floor, FIG.
A generally cylindrical bushing 80 shown in FIG. 24 is attached to the power cord 3.

For example, when the power cord 3 is pulled out from under the floor on a floor with a plurality of floor boards laid, a bushing 80 is disposed inside a through hole provided between the floor boards adjacent to each other. Then, the peripheral edge of the floor plate is fitted into the concave groove 81 provided on the side surface of the bushing 80, and the bushing 80 is fixed to the floor plate. By doing so, when the power cord 3 is pulled out from under the floor onto the floor, the power cord 3 can be protected without being damaged by the peripheral edge of the floor panel.

[0061]

According to the first aspect of the present invention, there are provided a plurality of terminal plates having a blade receiving spring for receiving a plug blade, an outer shell comprising a cover and a body for accommodating the plurality of terminal plates therein, and an outer electric wire. One end side is a table tap which is introduced into the inside of the outer shell through a through hole provided in the outer shell around the cover and the edge of the body, and a plurality of terminal plates are energized through external electric wires. Since at least one of the cover and the body around the hole is provided integrally with one or more claws for pressing the external electric wire, the claws provided integrally with at least one of the cover and the body press the external electric wire. By doing so, it is possible to eliminate the tension applied to the connection portion between the external electric wire and the terminal plate, prevent a poor contact, and reduce the number of components, thereby improving the assembling workability without requiring separate components as in the conventional example. The effect of being able to do There is.

According to the second aspect of the present invention, since the tip shapes of the one or a plurality of claws are substantially triangular pyramids, the claws can be easily hooked on the external electric wire, and the tension applied to the external electric wire can be more reliably reduced. There is an effect that it can be removed.

According to the third aspect of the present invention, since the rib for supporting one or a plurality of claws is provided, there is an effect that the claws are hardly bent and the mechanical strength can be increased.

According to a fourth aspect of the present invention, there is provided an energization indicator lamp, which is connected to each of the two terminal plates to be energized via a lead wire and displays the energized state of the terminal plate by turning on or off, inside the outer shell. A light-transmitting portion that emits light from the energization indicator lamp to the outside of the outer shell is provided on the outer shell, and a distance between connection points of the terminal boards to which the lead wires are connected is at least longer than a distance between the terminal boards. Since the length is increased, the distance between the connection points is increased, so that the insulation distance between the lead wires is maintained and safety is ensured, but the energization indicator lamp is easily disposed inside the outer shell in a desired state. Can be
By arranging the energizing display lamp so that the surface of the energizing indicator lamp facing the light-transmitting portion is increased, it is possible to improve the visibility of the energized state of the terminal board by turning on or off the energizing indicator lamp. is there.

According to the fifth aspect of the present invention, since the rib for holding the energizing display lamp is provided on the body around the four circumferences of the energizing indicating lamp, the positioning of the energizing indicating lamp becomes easy, and the assembling workability is further improved. It is possible to suppress leakage of light from the energizing display lamp, increase the amount of light emitted from the light transmitting portion, and further improve the visibility of the energized state of the terminal board by turning on or off the energizing display lamp. There is.

A sixth aspect of the present invention is characterized in that a harness plug which is detachably connected to a power supply harness connector is attached to one end of the external electric wire on the side opposite to the outer shell, and is disposed, for example, under the floor. The device can be easily connected to a device having a harness connector via a harness plug, thereby improving the usability.

[Brief description of the drawings]

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

FIG. 2 is a configuration diagram showing connection between the neon lamp and a terminal plate according to the first embodiment;

FIG. 3 is a perspective view of another body of the above.

FIG. 4 is a perspective view of a main part of the cover according to the first embodiment;

FIG. 5 is a perspective view of another main part of the cover of the above.

FIG. 6 is a front view of a main part of the cover.

FIG. 7 is a perspective view of a main part of the body.

FIG. 8 is a perspective view of another main part of the body of the above.

FIG. 9 is a front view of a main part of the body.

FIG. 10 is a front view showing a state where the cover is removed.

FIG. 11 is a sectional view of a main part of the above.

FIG. 12 is a side sectional view of a main part of the above.

FIG. 13 is a front view of a main part of another body of the above.

FIG. 14 is a side sectional view of a main part when another body of the above is attached to a cover.

15A shows a conventional example for comparison with the above, and FIG. 15A is a front view of a main part when a cover is removed, and FIG.
FIG. 4 is a side sectional view of a main part when a cover is attached.

FIG. 16 is a main part front view showing a conventional example for comparison with the above.

FIG. 17 is a side sectional view of a main part of the above.

FIG. 18 is a front view of an essential part of the above.

FIG. 19 is a rear view of the cover.

FIG. 20 is a rear view of the above.

FIG. 21 is a side view of the same.

FIG. 22 is another side view of the above.

FIG. 23 is a front view showing a state where the power cord is connected to the power cord.

FIG. 24 is another front view showing a state where the power cord is connected to the power cord.

FIG. 25 is a front view of the harness plug.

26A is a rear view of a main part of a cover, and FIG. 26B is a rear view of a main part of a body.

FIG. 27 is a side sectional view of a main part of the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outer shell 2 Through-hole 3 Power cord 5 Magnet 6 Assembly screw 7 Claw part 10 Cover 14a Lamp cover 20 Body 30a-30b Terminal plate 31 Blade receiving spring 40a Middle cover 40b Medium body 50 Neon lamp

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor, Masuo Kitamura 1048, Kadoma, Kazuma, Osaka Prefecture Matsushita Electric Works, Ltd. F-term (reference)

Claims (6)

[Claims] 1. An electronic device comprising: a plurality of terminal plates having a blade receiving spring for receiving a plug blade; an outer shell comprising a cover and a body accommodating the plurality of terminal plates therein; A table tap which is introduced into the outer shell through a through hole provided around the edge of the body, and in which a plurality of terminal plates are energized through external wires, the cover and the body around the through hole in the outer shell. A table tap, wherein one or more claws for pressing an external electric wire are integrally provided on at least one of the tabs. 2. The table tap according to claim 1, wherein each of the one or more claw portions has a substantially triangular pyramid shape. 3. The table tap according to claim 1, further comprising a rib for supporting one or a plurality of claws. 4. An energization indicator lamp, which is connected to the two terminal plates to be energized via lead wires and displays the energized state of the terminal plate by lighting or extinguishing, is provided inside the outer shell. A light-transmitting portion that emits light from the energization indicator lamp to the outside of the outer shell is provided, and a distance between connection points of the respective terminal plates to which the lead wires are connected is longer than at least a distance between the terminal plates. The table tap according to any one of claims 1 to 3, wherein 5. The table tap according to claim 4, wherein a rib is provided on the body to hold the energizing indicator lamp around four circumferences of the energizing indicator lamp. 6. The table according to claim 1, wherein a harness plug for detachably connecting to a power supply harness connector is attached to one end of the external electric wire opposite to the outer shell. Tap.