JP2815909B2 - Outlet - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an outlet with a ground electrode.

2. Description of the Related Art Conventionally, there has been provided an outlet having this type of grounding electrode, which is fixed to a construction surface such as a wall surface. By the way, in order to fix to the construction surface, it is necessary to provide a frame fixed to the construction surface in the outlet.

This type of frame is generally capable of mounting up to three wiring devices of unit dimensions, and if the above-described outlet with a grounding electrode is formed so as to be mountable in such a frame, other wiring such as a switch can be performed. It can be attached to one frame together with the equipment, and the degree of freedom of construction is increased.

[Problems to be Solved by the Invention] By the way, in this type of outlet, the blade receiving spring that elastically clamps the plug blade of the plug and the terminal plate that connects the electric wire are fixed by caulking rivets. There are problems that the blade receiving spring, the terminal plate, and the caulking rivet are required as peripheral parts, and the number of assembling steps increases the caulking process. There is a problem that the characteristics vary depending on the conditions, and the holding force and the insertion force characteristics of the plug are not stable.

The present invention has been provided in view of the above points,
It is an object of the present invention to provide an outlet which has a ground electrode and can be attached to a frame, and further integrates a blade receiving spring and a terminal plate to reduce the number of parts and man-hours and stabilize quality. .

[Means for Solving the Problems] The invention according to claim 1 provides an earthing electrode blade receiving spring in one side opening, which is provided with an insulating wall which divides both ends of the inside into two sides, and which is partitioned by the insulating wall. Constitute a first storage unit for storing
A second partition in which the partition wall extends from the substantially center of the insulating wall in the other side of the space to the middle of the other side of the insulating wall at substantially right angles to the insulating wall, and the power receiving blade springs are respectively housed on both sides of the partition. A body provided with a third storage portion, 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, and a body; A unit size is defined as one unit which can be mounted side by side with three mounting frames which are formed of a cover and are standardized for an embedded wiring device, and the outer shell having the unit size, the second and third units, A pair of blade receiving springs made of a leaf spring material for power supply separately stored in the storage portion, and each blade receiving spring is formed by bending from the same leaf spring material as the above-mentioned blade receiving springs for power supply, and each blade receiving spring is integrated, Second, third
A pair of terminal plates housed in a cavity communicating with the housing portion, and formed by bending the same leaf spring material as the ground electrode blade receiving spring to be integral with the ground electrode blade receiving spring, A terminal plate housed in the housing, a lock 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; and a lock spring disposed in the body. A release button for releasing the contact between the terminal plate and the electric wire by pressing the corresponding locking spring, and placed on a step formed at both ends of the cover and on both sides of the body from both sides. A pair of assembly frames for engaging the cover with the body by engaging the ends of both side pieces extended along the body with the body, and formed to protrude from the assembly frame placed on the step portion; And a locking claw for locking to the mounting frame.

According to a second aspect of the present invention, in the first aspect of the present invention, the assembling frame includes a tongue piece having an engagement hole with a metal mounting frame.

According to a third aspect of the present invention, in the first or second aspect of the present invention, both side pieces of the assembly frame are fitted into grooves formed in the cover and the body, and protrude from ends of the grooves on the body side. The front ends of the both side pieces are hooked and engaged with the edges of the groove.

According to a fourth aspect of the present invention, in the first or second or third aspect, two locking springs are disposed inside the terminal plate integrated with the ground electrode blade receiving spring. Is what it is.

According to the first aspect of the present invention, the power receiving blade receiving spring and the grounding electrode blade receiving spring are provided with terminal plates formed by bending the same spring material, respectively. By being integrated without using a separate member, not only the assembling work of the outlet is easy, but also the number of components is reduced and the manufacturing of the components of the outlet is facilitated.

In addition, while preventing the contact between the blade receiving spring and the terminal plate for the ground electrode and the blade receiving spring and the terminal plate for the power supply with an insulating wall,
The respective storage portions can be secured, and furthermore, the contact between the pair of power receiving blade receiving springs can be prevented 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 assembly frame has a locking piece protruding from the mounting frame, so the mounting frame is always removed and attached to the mounting frame during construction. The storage space can be saved separately from the mounting frame, so that the inventory space can be reduced.

In addition, since the outer shell is the unit size of the embedded wiring device, it can be attached to the mounting frame together with wiring devices of other unit dimensions, and the number of outlets can be selected from 1 to 3 or It becomes possible to attach it to one place in combination with another wiring device such as a switch, and the degree of freedom of construction is increased.

According to the second aspect of the present invention, it is possible to mount the apparatus on a metal mounting frame.

According to the third aspect of the present invention, the assembling frame can be positioned at the time of assembling with the assembling frame, thereby facilitating the assembling work.

According to the fourth aspect of the present invention, it is possible to easily send the ground wiring. [Example] An example of the present invention will be described below with reference to the drawings. FIG. 3 is an exploded perspective view of the outlet, in which the outer shell is composed of a body 1 having an open upper surface, and a cover 5 which is provided to cover the open surface of the body 1. A pair of blade receiving springs 2 and 3 for the power supply, a blade receiving spring 4 for the ground electrode, a metal locking spring 6 having elasticity, and a locking spring 6 are pressed into the body 1 to release the electric wire. The release button 7 and the like are provided 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. Insulation wall in the other space via insulation wall 11
Seki wall from approximately the center of 11 to the middle of the space at a right angle to the insulating wall 11
11a is extended, and the second and third storage portions 13 on both sides of the partition wall 11a are provided.
Blade receiving springs 2, 3 and the like are provided in a and 13b, respectively.

One blade receiving spring 2 is composed of a pair of blade receiving spring plates 21 and 21 having elasticity facing each other, and a bridging piece 22 integrally connecting lower edges of the blade receiving spring plates 21 and 21, A U-shaped terminal plate 24 protrudes from the upper end of the bridging piece 22 integrally. Thus, the blade receiving spring plates 21, 21, the bridging piece 22, and the terminal plate 24 are formed integrally by bending the same leaf spring material. Further, the plug blade of the plug is elastically sandwiched between the pair of blade receiving spring plates 21 to obtain electrical contact. A notch 23 for positioning the body 1 is formed in a lower portion of the bridging piece 22 to be engaged with a rib (not shown) protruding from the bottom of the body 1. Further, an L-shaped projecting piece 25 is integrally formed from an end edge of the contact piece 24a of the terminal plate 24 opposite to the inner wall surface of the body 1, and the projecting piece is formed.
The tip of 25 is located below the central piece 24b of the terminal plate 24. The projecting piece 25 regulates the inclination and the lateral movement of the locking spring 6, so that the wire can be inserted smoothly.

Further, the other blade receiving spring 3 is similarly configured, and a pair of blade receiving spring plates 31, 31, a bridging piece having a notch 33, and a terminal plate 34 are formed by bending from the same leaf spring material and integrally formed. ing. The L-shaped protruding piece 35 is integrally protruded from the side opposite to the protruding piece 25 of the blade receiving spring 2. Therefore, the two terminal boards 24 and 34 provided with the protruding pieces 25 and 35 respectively have a symmetrical shape.

One blade receiving spring 4 for the grounding electrode is provided, and as shown in FIGS. 1 to 4, two opposed blade receiving spring plates 41, 4 are provided.
1 and a connecting piece for connecting the edges of the bases of the double-edge receiving spring plates 41, 41
A substantially U-shaped terminal plate 44 and the like integrally extended from the connecting piece 42 are formed by bending from the same leaf spring material to be integrated. That is, the blade receiving spring 4 and the terminal plate 44 are integrated by the connecting piece 42. The connection piece 42 is formed in an L-shape so as to be bent toward the blade receiving spring plate 41 side to reinforce the connection piece 42. On both lower sides of the connection piece 42, notches 43 for positioning to the body 1 are provided. Each is formed. Two contact pieces 44a that contact the electric wire are formed on both sides of the terminal plate 44, and two locking springs 6 are arranged inside the terminal plate 44 corresponding to the positions of the contact pieces 44a. The release buttons 7 are provided one for each of the two lock springs 6.

A pair of blade insertion holes 51 and a blade insertion hole 52 for a ground electrode are formed in the cover 5, and stepped portions 53 are provided at both ends so as to protrude laterally. Also, on both sides of the step 53, side pieces 55 of the assembly frame 8 are provided.
On both sides of the groove 53 in which the groove 54 fits, the groove 54 in which the side piece 55 of the assembly frame 8 fits.
Are formed respectively. The cover 5 is placed on the opening side of the body 1, and the assembly frame 8 is fitted thereon.
55 is fitted in the groove 54 of the cover 5 and the groove 14 of the body 1, the engaging piece 56 at the tip of the side piece 55 of the assembly frame 8 is opened outward, and the hook is engaged with the end of the groove 14 of the body 1. Stopping, the cover 5 is connected to the body 1. In addition, 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 claw 57 is for mounting on a mounting frame made of an insulating material standardized for an embedded wiring device, and the engaging hole 59 is a metal mounting standardized for an embedded wiring device. For mounting on a frame. The outer shell is formed in a unit size, with one unit size being a unit size that can be attached to the three mounting frames.

[Effects of the Invention] As described above, the power receiving blade receiving spring and the ground electrode blade receiving spring are provided with terminal plates formed by bending the same leaf spring material, respectively. And the terminal board are integrated without using separate members, so that it is easy to assemble the outlet, of course,
The number of components is reduced and the components of the outlet are easily manufactured.

In addition, the contact between the blade receiving spring and the terminal plate for the ground electrode and the blade receiving spring and the terminal plate for the power supply can be prevented by the insulating wall, and their respective storage portions can be secured. Prevention of mutual contact and positioning can be performed by the partition.

In addition, the body and cover can be firmly connected by the assembly frame, and the assembly frame has a locking piece protruding from the mounting frame, so the mounting frame is always removed and attached to the mounting frame during construction. The storage space can be saved separately from the mounting frame, so that the inventory space can be reduced.

In addition, since the outer shell is the unit size of the embedded wiring device, it can be attached to the mounting frame together with wiring devices of other unit dimensions, and the number of outlets can be selected from 1 to 3 or It becomes possible to attach it to one place in combination with another wiring device such as a switch, and the degree of freedom of construction is increased.

According to the invention of claim 2, in addition to the effect of the invention of claim 1, attachment to a metal attachment frame becomes possible.

According to the third aspect of the present invention, in addition to the effects of the first or second aspect, the assembly frame can be positioned at the time of assembling with the assembly frame, thereby facilitating the assembling work.

According to the fourth aspect of the invention, in addition to the effects of the first, second, or third aspect of the invention, the feeding of the ground wiring can be simplified.

[Brief description of the drawings]

FIG. 1 is a perspective view of a blade receiving spring according to an embodiment of the present invention, FIG. 2 is a perspective view of the same as viewed from the opposite direction to FIG. 1, FIG. 4 (a) ~
(D) is the top view, front view, left side view, and broken right side view of the same blade receiving spring. 1 is a body, 2 and 3 are blade receiving springs for a power supply, 4 is a blade receiving spring for a ground electrode, 5 is a cover, 6 is a locking spring, 7 is a release button, 8
Is an assembly frame, 11 is an insulating wall, 11a is a partition, 12 is a first storage portion, 13a and 13b are second and third storage portions, 14 is a groove, 23 is a cutout, 24 is a terminal plate, and 34 is a terminal. Board, 44 is a terminal plate, 51 is a blade insertion hole, 52 is a blade insertion hole, 53 is a step, 54 is a groove, 55 is a side piece,
56 is an engagement piece, 57 is a locking claw, 58 is a tongue piece, and 59 is an engagement hole.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H01R 19/00-19/08 H01R 13/46-13/72

Claims (4)

(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 interior, and which stores a ground electrode blade receiving spring in a space on one side partitioned by the insulating wall. A partition wall extending from the substantially center of the insulating wall in the other side of the space substantially perpendicular to the insulating wall to the middle of the other side of the space, 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, 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. And a cover, which is a unit dimension of one unit that can be mounted side by side on a mounting frame standardized for an embedded wiring device, and an outer shell having the unit size, A pair of blade receiving springs made of a leaf spring material for a power source, each of which is separately stored in the storage portion of the power source unit; A pair of terminal plates, which are bent and formed from the same leaf spring material as the spring and are integrated with the respective blade receiving springs, and are housed in cavities communicating with the second and third housing portions, and the ground electrode blade receiving spring; Terminal plates are formed by bending from the same leaf spring material and are integrated with the blade receiving spring for the ground electrode, and are arranged inside the respective terminal plates so as to be surrounded by the terminal plates. A lock spring that elastically contacts an externally inserted electric wire to a terminal plate, and a release button that is disposed in the body and presses the corresponding lock spring to release contact between the terminal plate and the electric wire, A pair of ends which are placed on the steps formed at both ends of the cover and extended from both sides along the both side surfaces of the body to engage the tips of the two side pieces with the body to couple the cover to the body; From the assembly frame placed on the step It formed to, outlet and locking pawl for locking the mounting frame, characterized in that it consists to. 2. An outlet according to claim 1, wherein said assembly frame is provided with a tongue piece having an engagement hole to a metal mounting frame. 3. The both sides of the assembly frame are fitted into grooves formed in the cover and the body, and the front ends of the both sides projecting from the ends of the grooves on the body side are fitted to the edges of the grooves. 3. A hook engaging engagement.
Outlet described. 4. The lock spring according to claim 1, wherein two locking springs are arranged inside said terminal plate integrated with said ground electrode blade receiving spring. Outlet described.