JP3015334B2 - Outlet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outlet having a ground electrode.

[0002]

2. Description of the Related Art Outlets conventionally provided are:
In general, an electric wire is connected using a terminal with a screw. To fix the electric wire to a construction surface such as a wall surface, it is necessary to provide a frame fixed to the construction surface in the outlet.

[0003]

In the above-mentioned structure, since the electric wire is connected to the terminal having a screw, there is a problem that if the number of outlets is large, the connection work is troublesome and the workability is low. In addition, the frame fixed to the construction surface is usually provided integrally with the outlet, and there is a problem in that the frame is bulky when stored in a box or the like having a size including the frame when stocked.

[0004] The present invention has been made in view of the above points, and an object thereof is to reduce the inventory space by mounting a mounting frame and an outlet separately.
In addition, it prevents contact between the power blade receiving spring and the terminal body, prevents contact between the power blade receiving springs, and performs positioning, as well as the freedom of construction and the reduction of the number of components. To provide an outlet in which a space for arranging two locking springs arranged inside the terminal board for feed wiring in parallel in a limited-sized body can be easily provided and the earth wiring can be easily sent. is there.

[0005]

To achieve the above object, according to the first aspect of the present invention, there is provided a one-sided opening provided with an insulating wall which divides the inside of each of the two opposite directions into two parts. Constitutes a first accommodating portion for accommodating the blade receiving spring for the grounding electrode, and extends the partition wall substantially at right angles to the insulating wall from the center of the insulating wall at the other side of the space to the middle of the other side of the empty space. A body provided with second and third storage portions for extending and storing power supply blade receiving springs on both sides of a partition wall, respectively, and a pair of power supply blade insertion holes attached to one surface opening of the body; And a cover having an opening formed therein and a plug blade insertion hole for a ground electrode, the outer shell having an outer dimension being a unit dimension of the embedded wiring device, and the second and third shells.
A pair of blade receiving springs for the power supply, which are separately stored in the storage portions, respectively, and are formed by bending the same blade springs as the power supply blade receiving springs to be integral with the respective blade receiving springs, and 3, a pair of terminal plates housed in a space communicating with the housing portion, a ground electrode blade receiving spring housed in the first housing portion, and bent from the same spring material as the ground electrode blade receiving spring. It is formed and integrated with the blade receiving spring for the grounding electrode, and is disposed so as to be surrounded by the terminal plates inside the terminal plates and housed in the first storage portion, and inserted from outside. A locking spring for elastically contacting the electric wire with the terminal plate, a release button disposed in the body to press the corresponding locking spring to release contact between the terminal plate and the electric wire, and formed on both ends of the cover. On both sides of the body. A pair of assembly frames for connecting the cover to the body by engaging the front ends of both side pieces extended to the body, and engaging with a mounting frame formed on the assembly frame placed on the step portion. And a pair of blade insertion holes for the power supply formed in the cover and the blade insertion hole for the grounding electrode are arranged in the longitudinal direction of the outer shell. The pair of blade insertion holes for the power supply are parallel to the longitudinal direction, and the blade insertion hole for the ground electrode is substantially positioned on a center line passing through the pair of blade insertion holes for the power supply; Two lock springs are arranged inside the terminal plate integrated with the blade receiving spring.

According to the first aspect of the present invention, the contact between the ground electrode blade receiving spring and the terminal plate and the power source blade receiving spring and the terminal body is prevented by the insulating wall, and the respective storage portions are secured. In addition, the contact between the pair of power receiving blade receiving springs and the positioning can be performed by the partition wall. In addition, the body and cover can be firmly connected by the assembly frame, and the locking piece to the mounting frame made of insulating material protrudes from the assembly frame, so the mounting frame is always removed and attached at the time of construction It is sufficient to mount it on a frame and it can be stored separately from the mounting frame, so that there is an effect that the inventory space can be reduced.

Further, since the outer shell has the unit size of the embedded wiring device, it can be mounted on the mounting frame together with the wiring device of another unit size, and can be combined with another wiring device such as a switch in one place. Can be installed on the floor, which increases the degree of freedom of construction. Furthermore, since each blade receiving spring is provided with a terminal plate, and the blade receiving spring and the terminal plate are integrated, the number of components is reduced and the assembling work is facilitated.

[0008] A pair of power blade insert holes formed in the cover and a ground electrode blade insert hole are arranged in the longitudinal direction of the outer shell, and a pair of power blades are provided. The insertion hole is parallel to the longitudinal direction, and the ground electrode blade insertion hole is located substantially on a center line passing between a pair of power blade insertion holes, so that it is arranged inside the ground electrode terminal plate. The space for arranging two locking springs in parallel for the feed wiring can be easily taken in the body of a limited size, and the two locking springs arranged inside the terminal plate for the grounding electrode enable the grounding. Feed wiring can be easily performed.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of an outlet, in which an outer shell is composed of a body 1 having an open upper surface, and a cover 5 that covers the opening surface of the body 1. Body 1
A pair of blade receiving springs 2 and 3 for the power supply, a blade receiving spring 4 for the grounding electrode, a metal locking spring 6 having elasticity, and a release button for releasing the electric wire by pressing against the locking spring 6. 7 etc. are placed and arranged. An insulating wall 11 is integrally formed at the center of the body 1, and a blade receiving spring 4 for a ground electrode and the like are housed in a first storage portion 12 which is one of the vacant spaces via the insulating wall 11. In the other space via the insulating wall 11, a partition wall 11a extends from substantially the center of the insulating wall 11 to the middle of the space at substantially right angles to the insulating wall 11, and the second and third partitions on both sides of the partition wall 11a. Storage sections 13a, 1
Blade receiving springs 2, 3 and the like are provided in 3b, respectively.

One of the blade receiving springs 2 includes a pair of blade receiving spring plates 21 and 21 having opposing elasticity, and a pair of blade receiving spring plates 21 and 21.
21 and a bridging piece 22 integrally connecting the lower edges thereof. Further, a U-shaped terminal plate 24 is integrally protruded from the upper end edge of the bridging piece 22 to achieve integration. I have. Thus, the blade receiving spring plates 21 and 21, the bridging pieces 22 and the terminal plate 2
No. 4 is formed integrally by bending and forming the same leaf spring material. Further, a pair of blade receiving spring plates 21 and 21 are provided.
The electrical contact is obtained by elastically holding the plug blade of the plug. A notch 23 for positioning the body 1 is formed in a lower portion of the bridging piece 22 so as to be engaged with a rib (not shown) projecting from the bottom of the body 1. Furthermore, the contact piece 24 of the terminal plate 24
An L-shaped projection 25 is integrally formed from an end edge of the body 1 opposite to the inner wall surface, and the tip of the projection 25 is located below the central piece 24 a of the terminal plate 24. The projection 25 restricts the inclination and the lateral movement of the locking spring 6, so that the wire can be inserted smoothly.

The other blade receiving spring 3 is similarly constructed, and a pair of blade receiving spring plates 31, 31, a bridging piece 32 having a notch 33 and a terminal plate 34 are formed by bending the same leaf spring material. And integrated. The L-shaped projecting piece 35 is integrally provided so as to project from the side opposite to the projection 25 of the blade receiving spring 2. Therefore, the terminal plates 24 and 34 provided with the protruding pieces 35 are symmetrical.

FIG. 2 shows the blade receiving spring 2, and FIGS. 3 (a) and 3 (b) and FIGS. 4 (a) and 4 (b) show the whole outlet. As shown in FIG. 3B and FIG.
The lock spring 6 is positioned below the terminal plate 24 so that the tip of the lock spring 6 is located in the concave portion 6a above the lock spring 6. The same applies to the relationship between the projecting piece 35 of the other blade receiving spring 3 and the locking spring 6.

The blade receiving springs 2 and 3 are provided with the storage portions 13a,
13b, the base side faces are stored in the storage portions 13a, 13a.
When it bends to the partition wall side of b, it comes into contact with the projection 100 provided on the partition wall shown in FIG. One blade receiving spring 4 for the ground electrode is provided, and as shown in FIGS.
Two opposed blade receiving spring plates 41, 41, a bridging piece 42 connecting the base edges of the two blade receiving spring plates 41, 41, and a substantially U-shaped extending integrally formed from the bridging piece 42. Terminal board 4
4 and the like are formed by bending from the same leaf spring material and integrated. That is, the blade receiving spring 4 and the terminal plate 44 are integrated by the bridging piece 42.

Notches 43 for positioning are formed on both lower sides of the bridging piece 42, respectively. The terminal plate 44 of the blade receiving spring 4 is provided with two contact pieces 44a on both sides for contacting the electric wire, and two locking springs 6 are accordingly connected to the terminal plate 44.
It is arranged below. Incidentally, one release button 7 is provided.
A pair of power blade insertion holes 51 formed in the cover 5 for power supply,
51 and a blade insertion hole 52 for the grounding electrode are arranged side by side in the longitudinal direction of the outer shell, and a pair of blade insertion holes 5 for power supply are provided.
1 and 51 are parallel to the longitudinal direction, and the blade insertion hole 52 for the ground electrode is substantially located on a center line passing between the pair of blade insertion holes 51 for power supply. Grooves 54 into which the side pieces 55 of the assembly frame 8 fit are formed on both sides of the step portion 53, respectively. The cover 5 is placed on the opening side of the body 1, the assembly frame 8 is fitted thereon, and the side pieces 55 of the assembly frame 8 are fitted into the groove 54 of the cover 5 and the groove 14 of the body 1, and Side piece 5
The engagement piece 56 at the tip of the body 5 is expanded outward and hooked and locked to the end of the groove 14 of the body 1 so that the cover 5 is connected to the body 1. A pair of locking claws 57 protrude from the edge of the assembly frame 8, and a tongue piece 58 stands upright from the center of the assembly frame 8, and an engagement hole 59 protrudes from the tongue piece 58. It is. The locking piece 57 is for attachment to a mounting frame made of, for example, an insulating material standardized for an embedded wiring device, and the engagement hole 59 is made of a metal standardized for an embedded wiring device. For mounting on a mounting frame. The outer shell is formed in a unit size that can be mounted on the mounting frame in three rows.

As described above, the projection 25 formed on the blade receiving spring is positioned in the recess 6a of the locking spring 6, and the projection 25 surrounds the locking spring 6 from the side, so that FIGS. As shown in the directions A and B, the movement of the locking spring 6 can be restricted by the vertical piece 26 and the projection 25 of the blade receiving spring 2, and in the B ′ direction where the projection 25 does not exist,
The movement of the locking spring 6 can be restricted by approaching the inner wall surface of the body 1 or providing a rib on the body 1. In this way, by restricting the movement of the locking spring 6 in the front-rear and left-right directions, unnecessary operation of the locking spring 6 is suppressed, and the wire can be inserted smoothly.

Next, the notches 23 provided in the blade receiving springs 2, 3, and 4 will be described. 8 and 9 show the case of the blade receiving spring 3, but the same applies to other cases. By the way, as shown in FIG. 10, when the rib 15 is provided on the body 1 so as to guide the blade receiving spring 3 from both sides, the blade receiving spring plate 31 is opened with the plug inserted. As a result, the insertion force and the holding force characteristic are not stable due to the variation in the dimension between the rib 15 and the opening of the blade receiving spring plate 31. Therefore, in the present embodiment, as shown in FIGS. 8 and 9, the rib 16 of the body 1 has a structure that does not affect the characteristics of the plug insertion force and the holding force.
The bridge piece 32 of the blade receiving spring 3 is provided with a notch 33 that matches the rib 16.

That is, as shown in FIG. 8, a fixing base 17 is integrally formed from the bottom surface of the body 1 and the insulating wall 11 side.
A rib 16 is integrally formed on the distal end surface of the fixing base 17. Therefore, by attaching the lower part of the blade receiving spring 3 to the fixed base 17 and fitting the notch 33 to the rib 1C, the blade receiving spring 3
Will be positioned as shown in FIG. By positioning the blade receiving spring 3 by the notch 33 and the rib 16 in this manner, the positioning can be performed without affecting the plug insertion force and the holding force characteristics. That is, FIG.
When the blade receiving spring 3 is positioned as shown in FIG.
As shown in (a), the dimension X positioned by the ribs 15 is inferior in accuracy because it includes two bent portions, and the dimension between the ribs 15 of the body 1 is increased by that amount. Is not good. However, with the configuration as in this embodiment, as shown in FIG. 11B, the width dimension Y of the notch 33 is determined only by the punching process, so that the accuracy is good, and therefore, the positioning accuracy is also improved.

FIG. 12 shows a structure in which a rib 18 is suspended from the lower surface of the cover 5 and the inclination of the locking spring 6 is suppressed by the rib 18. The locking spring 6 is formed by the rib 18.
Is prevented, and the insertion of the electric wire from the electric wire insertion hole 19 is made smooth.

[0019]

According to the first aspect of the present invention, the contact between the ground electrode blade receiving spring and the terminal plate and the power source blade receiving spring and the terminal body is prevented by the insulating wall. At the same time, it is possible to secure the respective storage sections, furthermore, it is possible to prevent the contact between the pair of blade receiving springs for the power supply and to perform the positioning with the partition wall, and the body and the cover can be firmly connected by the assembling frame. Since the locking piece to the mounting frame made of insulating material protrudes from the frame, always leave the mounting frame removed and attach it to the mounting frame at the time of construction, and store it separately from the mounting frame. Can reduce inventory space, and because the outer shell is the unit size of the embedded wiring device, it is possible to attach it to the mounting frame together with wiring devices of other unit dimensions, and other switches such as switches Combined with wiring equipment and taken in one place Can be attached, the degree of freedom of construction is increased, and each blade receiving spring is provided with a terminal plate.The integrated blade receiving spring and terminal plate reduce the number of component parts. In addition, assembling work is facilitated, and a pair of power supply blade insertion holes formed in the cover and a ground electrode blade insertion hole are arranged in the form of a line in the longitudinal direction of the outer shell. The pair of blade insertion holes are parallel to the longitudinal direction, and the ground electrode blade insertion hole is substantially located on a center line passing between the pair of power blade plug insertion holes. Two locking springs are arranged inside the plate. It is easy to take up space in the body of a limited size to arrange two locking springs in parallel for feed wiring, and furthermore, two chains arranged inside the terminal plate for the ground electrode The lock spring has an effect that the feed wiring of the ground can be easily performed.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an entire outlet according to an embodiment of the present invention.

FIG. 2A is a plan view of the blade receiving spring according to the first embodiment.
(B) is a left side view of the blade receiving spring. (C) is a right side view of the same. (D) is a front view.

FIG. 3A is a plan view of the outlet according to the first embodiment.
(B) is a front view of the outlet same as the above.

FIG. 4A is a side view of the outlet.
(B) is a top view of the same outlet with the cover removed.

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

FIG. 6A is a plan view of a blade receiving spring for a ground electrode according to the first embodiment. (B) is a front view of the blade receiving spring for ground electrodes same as the above.

FIG. 7 (a) is a left side view of the blade receiving spring for the ground electrode according to the first embodiment. FIG. 3B is a right side view of the blade of the above-mentioned ground electrode, which is broken.

FIG. 8 is an exploded perspective view of a main part of the above.

FIG. 9A is a sectional view of the above. (B) is a sectional side view of the same.

FIG. 10 is an explanatory diagram of the above.

FIG. 11A is an explanatory diagram of the above. (B) is explanatory drawing same as the above.

FIG. 12 is a sectional view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 2,3,4 Blade receiving spring 5 Cover 6 Lock spring 6a Recess 7 Release button 8 Assembly frame 11 Insulating wall 11a Partition wall 12 First storage portion 13a, 13b Second, third storage portion 14 Groove 21 Blade Spring receiving plate 22 Bridge piece 23 Notch 24 Terminal plate 25 Projection 31 Blade receiving spring plate 32 Bridge piece 33 Notch 34 Terminal plate 35 Protrusion piece 41 Blade receiving spring plate 42 Bridge piece 43 Notch 54 Groove 55 Side piece 56 Mating piece 57 locking claw 58 tongue piece 59 engagement hole

Continuation of front page (56) References JP-A-63-313480 (JP, A) JP-A-63-110571 (JP, A) JP-A-63-102189 (JP, U) JP-A-61-142375 (JP, A) , U) Fully open 1987-124970 (JP, U) Fully open 1987-6-4080 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01R 13/00-13/46 H01R 4/48 H01R 19/00

Claims (1)

(57) [Claims] A first storage portion is provided which has an opening on one surface and an insulating wall which bisects both ends of the inside, and a blade receiving spring for a grounding electrode is stored in a space on one side partitioned by the insulating wall. A partition wall extending substantially at right angles to the insulating wall from the substantially center of the insulating wall in the space on the other side and extending to the middle of the space on the other side, and the power receiving blade receiving springs are housed on both sides of the partition, respectively. 2, a body provided with a third storage portion, and a cover attached to one surface opening of the body and having a pair of blade insertion holes for a power supply and a blade insertion hole for a ground electrode respectively opened. An outer shell whose outer dimensions are unit dimensions of the embedded wiring device; a pair of blade receiving springs for a power source separately housed in the second and third storage portions; and the respective blade receiving springs for the power source. And are formed integrally with the respective blade receiving springs from the same leaf spring material and communicate with the second and third storage portions. A pair of terminal plates housed in a place, a ground electrode blade receiving spring housed in the first housing, and a ground electrode blade formed by being bent from the same spring material as the ground electrode blade receiving spring. The first spring is integrated with the receiving spring.
A terminal plate housed in the housing part, a locking spring disposed inside the terminal plate so as to be surrounded by the terminal plate, and elastically contacting an electric wire inserted from the outside with the terminal plate; A release button that is disposed and presses the corresponding locking spring to release the contact between the terminal plate and the electric wire; and both side surfaces of the body placed on steps formed on both ends of the cover from both sides A pair of assembling frames for connecting the cover to the body by engaging the ends of both side pieces extended along the body with the body, and an insulating material formed on the assembling frame placed on the step portion And a pair of blade insertion holes for the power supply formed in the cover and the blade insertion hole for the grounding electrode. The pair of blade insertion holes for the power supply are parallel to the longitudinal direction, The ground electrode blade insertion hole is positioned substantially on a center line passing through the pair of power blade insertion holes, and two locking springs are provided inside the terminal plate integrated with the ground electrode blade receiving spring. The outlet characterized by having arranged.