JPH0330268A - Plug socket - Google Patents

Abstract

PURPOSE:To make tooth rest springs and terminal boards common only with a plurality of kinds of covers different in plug blade prepared to manufacture numerous kinds of products by a method wherein the tooth rest spring is a structure having a plug blade receiving groove in an approximate T-shape viewed from a horizontal plane and a pair of tooth rest springs are placed symmetrically. CONSTITUTION:A tooth rest spring 3 is a structure having a plug blade receiving groove 4 in an approximate T-shape viewed from a horizontal plane and a pair of tooth rest springs 3 are placed symmetrically so that the tooth rest springs 3 are connected to terminal boards 2a, 2b to make a pair of the tooth rest springs 3 correspond to a pair of plug blade insertion holes 6. Thus by providing the T-shaped plug blade receiving groove 4 on a pair of the tooth rest blades 3, a plug blade in-shape or L shape can be received wherein only by preparing a plurality of kinds of covers 5 different in shape of the plug blade insertion hole 6, numerous kinds of products can be manufactured with the tooth rest spring 3, the terminal-boards 2a, 2b and a body 1 in common.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an exposed type electrical outlet, and more particularly to the structure of an electrical outlet that can accommodate one 200-inch power source.

[Jubei Techniques 1. Conventionally, the maximum rated voltage was 250V, which was 4! The current is 20
The outlet in A was arranged as shown in Figure 14. A pair of terminal plates 2a2b' and a pair of blade receiving springs 3a, 3b' are installed in the body 1', and a pair of blade receiving grooves 4' of the pair of blade receiving springs h3a, 3b' are perpendicular to each other. Blade support springs 3a' and 3b' were installed. Terminal plates 2a', 2b' blade receiving springs 3a', 3b
A pair of blade insertion holes 6' were provided in a cover 5' that was fitted onto the body 1' with the blade installed therein so as to correspond to the blade receiving grooves 4' of the blade receiving springs 3a' and 3b'.

[Problem to be solved by the invention] However, in the case of such an outlet, it is only for 250V and 2OA, and other types (with a rated current of J%) are used.
It could not be used for anything. Recently, when the maximum rated voltage of a 200V outlet is 250■ and the maximum rated current is 15A, a structure has been adopted in which the plug blade insertion holes 6a are arranged horizontally as shown in Fig. 15(a), and the maximum rated voltage is 250V and the maximum rated current is 20A.
), a structure in which a straight plug blade insertion hole 6& and an L-shaped plug blade insertion hole 6b are arranged side by side is becoming standardized. However, if the shape of the plug blade insertion hole is different, not only the shape of the cover but also the blade receiving spring, terminal board, etc. must be changed, which increases the number of types of parts, complicates the manufacturing process, and increases costs. There was a problem.

The present invention has been made in view of the above points, and the purpose of the present invention is to share the blade receiving spring, terminal plate, and body by simply preparing a cover having a Y4-shaped plug blade insertion hole. And a wide variety of things! ! ! Please provide an outlet where you can use it.

[Means for Solving the Problems 1 To achieve the above object, the electrical socket of the present invention] A has terminal plates 2 a, 2 b and a blade holder h3 installed between the body 1 and the cover 5, and the cover 5 In the socket A with a plug blade insertion hole 6 provided in the socket A, the blade receiving spring 3 is structured to have a generally T-shaped plug blade receiving groove 4 when viewed from above, and the pair of blade receiving springs 3 are arranged symmetrically. The blade receiving spring 3 is connected to the terminals &2a, 2b, and the pair of blade receiving springs 3 and the pair of blade insertion holes 6 are made to correspond to each other.

It is also preferable that a lifting prevention protrusion 7 is provided which locks onto the back surface of the cover 5 and prevents the blade holder 3 from lifting up. Furthermore, terminal board 2 at
It is also preferable that the position of the terminal screw 8 provided at 2b is biased away from the center line of the body 1 in the opposite direction to the electric FA line inlet 9. Furthermore, in providing mounting holes 10 for mounting the body 1 in the diagonal direction of the body 1, one mounting hole 10 is provided on the side of the power line inlet 9, and two mounting holes are provided on the side opposite to the power line inlet 9. 10 are arranged side by side for a total of 3 mounting holes 1
It is also preferable to have a feature that 0it is provided and omitted. Further, the body 1 may be provided with a grounding terminal plate 11 and a grounding blade receiving spring 12 internally, and the cover 5 may be provided with a grounding plug insertion hole 13 corresponding to the grounding blade receiving spring 12. preferable.

[Since the pair of blade receiving flange 3 of the working unit has a T-shaped plug blade receiving groove 4, it is possible to receive even a straight or L-shaped plug blade, and the cover 5 has a different shape of the plug blade insertion hole 6. By simply preparing a plurality of types, a wide variety of types can be manufactured by using a common blade receiving spring 3, terminal plates 2a, 2b, and body 1. Moreover, the same pair of blade receiving springs 3 can be used.

[Embodiment 1 A body 1 is made of an insulating material, and a pair of terminal plates 2 at
2b is placed and fixed in isolation, and a pair of terminal boards 2
H3 is attached to each of a and 2 b for the blade holder.

Fig. 3 shows the assembled state of the blade holder t23 and the terminal plate 2a on the right side of Fig. 1(d), and Fig. 6 shows the assembled state of the blade holder 3 and the terminal plate 2b on the left side of Fig. 1(d). The assembled state is shown. As shown in FIG. 5, the terminal plate 2a has a rectangular terminal plate main body 15 with a female hole 16 in the center, and the terminal plate main body 15 has a female hole 16.
) A LT-shaped connecting piece 17 is integrally extended. A caulking hole 18 is provided at the tip of the connecting piece 17.
A lift-preventing protrusion 7 is provided to protrude upward from the upper surface of the base.

A terminal wand 8 is inserted into the ah-ji hole 16 of the terminal board body 15 with a washer 1.
They are screwed together via 9. As shown in FIG.
, 2 1c are integrally provided, and three spring pieces 2 1
A, 2 lb, and 2 1 c form T-shaped plug blade receiving grooves 4 when viewed from above. In other words, spring pieces 21a, 2:l
It has a plug blade receiving lateral groove 4a between the spring pieces 21a. 211
) and the spring piece 21c has a plug blade receiving vertical groove 4b.

The blade receiver main body 20 has a peeling hole 22, and the terminal plate 2
The terminal 2a and the blade receiving spring 3 are integrated by crimping with a rivet-like crimping member 23 in correspondence with the crimping hole 18 of a, as shown in FIG. Terminal board 2b is #IJ
As shown in Fig. 7, it is shaped in a line-symmetrical shape with the terminal plate 2a, and has a terminal plate main body 15, a female screw hole 16,
It has a connecting piece 17, a caulking hole 18, and an anti-lifting piece 7, and a terminal 8 and a washer 19 are attached thereto. The same blade receiving spring 3 as above is also attached to this terminal plate 2b by caulking in the same manner as above, and the terminal plate 2b is attached as shown in figure flrJ6.
and the blade receiving spring 3 are integrated. The cover 5 is made of an insulating material, but in this embodiment, the cover 5 is an inner cover 5.
a and an external force bar sb. An exposed portion 25 is provided on the upper surface of the inner cover 5a, and a window 26 through which the exposed portion 25 is exposed is provided on the outer cover 5b. The inner cover 5 is structured as shown in FIG. 2, and a pair of blade insertion holes 6 are provided in the exposed portion 25. In the case of this embodiment, the maximum rated voltage is 250 V'c and the maximum rated current is 20 A, so one of the pair of plug blade insertion holes 6 is a single blade insertion hole 6a, and the other The force is L-shaped plug blade insertion hole 6
It is b. On the lower surface side of the inner cover 5a, in the vicinity of the plug blade entry hole 6, there is a receiving part 2 for receiving the tip of the lifting prevention protrusion 7.
7 is installed protrudingly. This inner cover 5a is the terminal board 2
Body 1 with a, 2 b and blade holder spring 3 installed inside.
and the inner cover 5a is fixed with fixing screws 28. With the inner cover 5a fixed, the external force bar 5b is fitted onto the inner cover 5a. With the inner cover 5a fixed, insert the blade insertion hole 6a and the blade receiving groove 4 of the blade receiving spring 3 on the right side.
The blade insertion hole 6b corresponds to the blade receiver horizontal groove 4a and the blade receiver vertical groove 4b of the blade receiver groove 4 of the left side blade receiver spring 3, and the maximum rated current Can insert a plug blade of a 2OA device.

Furthermore, if an inner cover 5a having a pair of blade insertion holes 6a as shown in FIG. 15(a) is prepared, the blade receiver 3 and Leave the terminal plates 2a, 2b and the body 1 as they are, and align the plug blade insertion hole 6a with the plug blade receiving lateral groove 4a of the plug blade receiving groove 4 of the blade receiving spring 3 to create an electrical outlet with a maximum rated current of 15A}
A can be assembled. In addition, if the blade insertion hole 6 has a shape corresponding to the T-shaped blade receiving groove 4 of h3, no matter what shape the blade insertion hole 6 is provided, the inner cover 5 can be inserted.
This can be done simply by changing a, and products of multiple a types can be manufactured easily. In other words, not only the L-shaped plug blade insertion hole 6b, but also the reverse L-shaped plug blade insertion hole 6b.
A common member can also be used for a shaped plug blade insertion hole, a T-shaped plug blade insertion hole, and a ■-shaped plug blade insertion hole.

Further, in this embodiment, since the left and right blade receivers h3 have the same shape, the number of parts can be reduced by using a common member for the left and right blade receiver springs 3.

In addition, with the cover 5 attached, the lifting prevention protrusion 7 of the terminal plate 2 at 2 b is attached to the receiving part 27 of the inner cover 5a.
The tips of the plugs are in contact with each other, and the blade receiver h3 is installed so that it does not wobble in the thickness direction, which prevents the blade receiver spring 3 from lifting up when the plug blade is removed. In addition, a power line inlet 9 is provided on the side of the opening between the body 1 and the cover 5 of the outlet A, and four electric wires 29 are inserted from this power line inlet 9 as shown in FIG. Connect each conductor wire 29a, 29b to terminal plate 2a, 2b at terminal h
It is now possible to connect. In this example, the
Place the terminal board 2 so that the terminal h 8 is located on the opposite side of the power line inlet 9 from the center #io perpendicular to the direction of the i29.
A, 2B are attached to the body 1, and the space beside the power supply line inlet 9 is widened. Therefore, even if the wire #X29 is thick, it can be easily bent and the connection performance can be improved.

Further, when the electrical outlet A constructed as described above is attached to the structure 30, it may be attached using a mounting metal fitting 31 called a corner plate. In the American electrical outlet, mounting holes 1o for attaching to the mounting metal fitting 31 were provided at diagonal positions shown by symbols A and B in FIG. 14(d). However, if the terminal plates 2 a and 2 b are provided so as to be biased opposite to the power line inlet 9 along the center line e, the mounting hole 10 cannot be provided at the position shown by the reference numeral (b). For this reason, in this embodiment, the mounting hole 10 is provided at the position shown by the symbol A, and two mounting holes 10 are drilled side by side at the positions shown by the symbol C and the symbol 2, for a total of three mounting holes 10. It has been done.

However, as shown in FIG. 9, when the mounting bracket i4:31 is attached to the structure 30 on the left side with the fixing screw 32, the mounting hole 10 is located at the position indicated by the symbol A, and the mounting hole 10 is located at the position indicated by the symbol C. The outlet A can be attached to the mounting metal 31 using the mounting screw 33, and when the mounting metal 31 is attached to the structure 30 on the right side as shown in FIG. The electrical outlet A can be attached to the mounting bracket 31 using the mounting screw 33 using the mounting hole 10 and the mounting hole 10 at the position indicated by reference numeral 2.

Further, FIGS. 11, 12 and 13 show other embodiments. The terminals [2a, 2b, blade receiving spring 3, etc. are the same as in the above embodiment, but in this embodiment, a ground terminal is also provided. As shown in FIG. 12, the grounding terminal plate 11 has a pair of terminal h screws 34 and a pair of washers 35, and the connecting piece 36 of the grounding blade receiver BL2 is integrated with the grounding terminal plate 11 by tightening. be. This grounding terminal plate 11 is attached to a suitable position on the body 1, and a grounding blade receiving spring 12 is arranged so as to be close to the blade receiving spring 3.

This grounding blade receiving spring 12 also has a lifting prevention protrusion 7.
is provided. Further, the inner cover 5a of the cover 5 is provided with a 7-spin blade insertion hole 13, and this grounding blade insertion hole 13 is made to correspond to the earthing blade receiving spring 12.

A conducting wire 29C of an electric wire 29 is connected to this grounding terminal plate 11 as shown in FIG. In this case as well, it is equipped with a ground terminal, and a wide variety of products can be manufactured by keeping everything other than the inner cover 5a in common and simply changing the inner cover 5a. In other words, the inner cover 5 has plug blade insertion holes 6 of different shapes.
By preparing multiple types of a, a common one can be used for many types. At this time, it is possible to replace the plug with and without the ground plug blade insertion hole 13, and to have specifications with and without a ground terminal, and furthermore, common parts can be used for a wide variety of products.

[Effects of the Invention 1] As described above, the present invention has a structure in which the blade receiving spring has a generally T-shaped blade receiving groove when viewed from above, and a pair of blade receiving springs are arranged symmetrically to form a blade receiving spring. Connect to the terminal board,
Since the pair of blade receiving springs and the pair of blade insertion holes are made to correspond to each other, a plurality of types of covers with different shapes of the blade insertion holes are prepared so that they can receive even straight or L-shaped plug blades. It is possible to manufacture a wide variety of products by simply changing the cover and using the same blade holder spring, terminal board, and body.
It is easy to manufacture products with many types of blade insertion holes by using a large number of common parts.
The same parts can also be used, and in this respect, the parts can be made common and manufacturing can be facilitated.

In addition, in the invention according to claim 2 of the present invention, since the lifting prevention protrusion is provided which locks on the back surface of the cover and prevents the blade holder from lifting up, the blade of the plug can be removed from the blade holder. Even if an external force is applied to the blade retainer spring from the plug blade when removing the blade retainer, the blade retainer spring can be prevented from lifting up.

Furthermore, in the invention according to claim 3 of the present invention, since the position of the terminal screw provided on the terminal board is biased away from the position of the center line of the body in the opposite direction to the power line inlet, the power line inlet of the body There is a wide space on the side, and even if the tsi to be connected is a thick electric wire, it can be easily bent and the connection performance can be improved.

Furthermore, in the invention as set forth in claim 4 of the present invention, in providing the mounting holes for mounting the body in the diagonal direction of the body, one mounting hole is provided on the power supply line inlet side, and one mounting hole is provided on the power supply line inlet side, and 2 on the side opposite to the inlet
The mounting holes are lined up for a total of three mounting holes, so even if the terminal board or blade holder spring is placed on the opposite side of the power line inlet, you can select the mounting hole and connect the outlet. It can be attached together with a mount called a corner plate (T).

In addition, in the invention as set forth in claim 5 of the present invention, a terminal plate for the 7th earth and a grounding blade receiving spring are internally provided in the body, and a grounding blade insertion hole corresponding to the grounding blade receiving spring is provided in the cover. Since the cover is provided with a ground terminal, it can be used with a wide variety of types by simply replacing the cover.

[Brief explanation of drawings]

Figures 1(.), (b), and (c) are a plan view, a partially cutaway front view, and a partially cutaway side view of an embodiment of the present invention, and Figure 1(d) is a plan view with the cover omitted. , Figure 2(.)(b)(
e) is a plan view, cross-sectional view, and bottom view of the inner cover of the same cover, FIGS. 3(a) and (b) are a plan view and front view showing one of the gyroscope plates and the blade retaining spring, and FIG. 4(a) )(b)(c) is a plan view, front view, and side view of the blade receiving spring, and Fig. 5(a)
(b) and (c) are a plan view, a front view, and a partially cutaway side view of one terminal board, and Fig. 6 (a) and (b) are a plan view and a front view showing the other terminal board and the blade receiving spring. , Figure 7(a)(b)
(c) is a plan view, front view, and partially cutaway side view of the other terminal board, Figure 18 is a plan view showing how the electric wire is connected to the same outlet, and Figures 9 (a) and (b) are the same as above. A partially cutaway plan view and a front view showing an example of attaching an outlet to a structure; FIGS. 10(a) and (lJ) are a partially cutaway plan view and front view showing another example of FIG. 9; a)(b)(
c) is a plan view, partially cutaway front view and partially cutaway side view of another embodiment same as above, FIG. 11(d) is a plan view with the cover omitted, and FIG. 12(a)( b) (c) is a plan view showing the grounding terminal plate and grounding blade receiving spring as above;
A front view and a side view, FIG. 13 is a plan view of the connection state of electric wires to the same outlet as above, and FIGS. Fig. 14 (d) is a plan view with the cover omitted, and Fig. 15 (.) (b) is a schematic diagram illustrating the shape of the plug blade insertion hole. 2 a, 2 b are terminal plates, 3 is a blade receiving spring, 4 is a plug blade receiving groove, 5 is a cover 6 is a plug blade insertion hole, 7 is a lifting prevention protrusion, 8 is a terminal screw, 9 is a power line inlet , 10 is a mounting hole, 11 is a grounding terminal plate, 12 is a grounding blade receiving spring, and 13 is a grounding blade insertion hole.

Claims (1)

[Scope of Claims] [1] In an electrical outlet in which a terminal plate and a blade receiving spring are installed between the body and the cover, and a plug blade insertion hole is provided in the cover, the blade receiving spring is approximately T-shaped when viewed from above. In addition to having a structure having a plug blade receiving groove, a pair of blade receiving springs are arranged symmetrically, the blade receiving springs are connected to a terminal plate, and the pair of blade receiving springs are made to correspond to a pair of plug blade insertion holes. An electrical outlet characterized by comprising: [2] The electrical outlet according to claim 1, further comprising a lifting-preventing protrusion that locks onto the back surface of the cover to prevent the blade receiving spring from lifting. [3] Claim 1 characterized in that the position of the terminal screw provided on the terminal board is deviated from the position of the center line of the body in the opposite direction to the power supply line inlet.
Or the outlet described in 2. [4] When providing mounting holes for attaching the body in the diagonal direction of the body, 1
4. The electrical outlet according to claim 3, further comprising two mounting holes arranged side by side on the side opposite to the power supply line inlet, for a total of three mounting holes. [5] Claim 1 or 2, characterized in that a grounding terminal plate and a grounding blade receiving spring are internally provided in the body, and a grounding blade insertion hole corresponding to the grounding blade receiving spring is provided in the cover. Outlet described in 3 or 4.