JP2007165262A - Plug receptacle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plug receptacle the cost of which can be reduced by partially separating an earth terminal from an earth blade receiving spring to enhance productivity, and by making it possible to connect the parts separately formed in a single operation. <P>SOLUTION: An earth terminal 10 is formed by separating a terminal board side part 10A from a locking portion side part 10B, and an insertion piece 14 provided in the locking portion side part 10B is held between receiving parts 15 provided in the terminal board side part 10A by spring force. Thereby, the respective parts 10A, 10B can be each independently and simply formed, and the respective parts 10A and 10B can be connected in a single operation through the insertion piece 14 and the receiving part 15. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an outlet having a ground function.

As a conventional wall socket, there are provided one set of three plug blade insertion ports for inserting a ground side plug blade, a voltage side plug blade and a ground electrode, and an earth wire insertion port for inserting an external ground wire. In addition, a ground blade receiving spring connected to the ground electrode inserted from the plug blade insertion opening and an earth terminal connected to an external ground wire inserted from the ground wire insertion opening are provided inside the outlet, and the ground blade receiving spring and One in which an earth terminal is short-circuited to an internal earth wire via an internal earth connection (see, for example, Patent Document 1) is known.
Japanese Patent Laid-Open No. 10-302917 (page 3-4, FIG. 1)

  In the above conventional outlet, each part of the ground blade receiving spring, the ground terminal and the internal ground connection part is formed by press-molding a plate material, but each structure is complicated. It is extremely difficult to form a single body, and it may be impossible to integrally process. For this reason, conventionally, a method has been employed in which parts that are difficult to be integrally formed are separated from each part and the separated components are assembled together by caulking, welding, or the like.

  However, since extra parts such as caulking and welding are required for joining the separated parts, the cost of the product has been inevitably increased.

  Therefore, the present invention achieves a reduction in product cost by partially separating the earth terminal and the earth blade receiving spring to increase productivity and allowing the separated parts to be easily connected with one touch. The purpose is to obtain an outlet that can be used.

  According to the first aspect of the present invention, there is provided a plug blade insertion port into which the ground electrode of the plug is inserted and a ground wire insertion port of the external ground wire, and the ground is short-circuited to the ground electrode inserted from the plug blade insertion port. In the outlet where the blade receiving spring and the ground terminal connecting the external ground wire inserted from the ground wire insertion port between the terminal plate and the lock portion are connected to each other, and the connecting portion is connected to the internal ground, The ground terminal is formed by separating it into a terminal plate side part and a lock part side part, and an insertion piece is provided on one of the separated parts of the parts, and the insertion piece is clamped with a spring force on the other side. A receiving part is provided, and the terminal plate side part and the lock part side part are connected to each other through the insertion piece and the receiving part.

  According to a second aspect of the present invention, in the first aspect of the present invention, a connecting force between a body and a cover that constitutes the outer shell of the outlet is added to the portion connected to each other via the insertion piece and the receiving portion. It is characterized in that separation between the insert piece and the receiving portion is suppressed.

  According to a third aspect of the present invention, in the first or second aspect, the earth terminal and the ground blade receiving spring are formed separately, and an insertion piece is provided in one of the separated portions, and the other is provided in the other. A receiving portion for holding the insertion piece with a spring force is provided, and the ground terminal and the ground blade receiving spring are connected to each other via the insertion piece and the receiving portion.

  According to the invention of claim 1, by separating the terminal plate side part and the lock part side part, each part can be easily formed independently, and the separated parts are separated from each other. By inserting the insertion piece provided on one of the parts into the receiving part provided on the other, it can be connected with one touch, so that the assembly workability of each part can be improved and the formation of each part can be simplified. Can reduce the cost of the product.

  According to the second aspect of the invention, in addition to the effect of the first aspect, since the connecting force between the body and the cover is added in the retaining direction at the connecting portion between the insertion piece and the receiving portion, the insertion is performed. The connection state between the piece and the receiving portion can be more reliably maintained.

  According to the invention of claim 3, since the ground terminal and the ground blade receiving spring are separated from each other, they can be easily formed independently of each other. By inserting the insertion piece provided on one side into the receiving portion provided on the other side, it becomes possible to connect them with one touch. Therefore, it is possible to improve the assembling workability of each product, thereby achieving further cost reduction of the product.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(First Embodiment) FIGS. 1 to 9 show a first embodiment of an outlet according to the present invention, FIG. 1 is a perspective view of the outlet, and FIG. 2 is a terminal plate side part and chain of an earth terminal. The perspective view which isolate | separated the lock part side part, FIG. 3 is the perspective view which assembled | attached the lock part side part to the terminal board side part of an earth terminal, FIG. 4 is the perspective view of the earth terminal which assembled | attached the release button, FIG. 5 is a perspective view showing a connection structure between a lock part side part of an earth terminal and a ground blade receiving spring.

  6 is a plan view of the terminal plate side parts of the ground terminal, FIG. 7 is a plan view of the lock terminal side parts assembled to the terminal plate side parts of the ground terminal, and FIG. 8 is a release button on the ground terminal. FIG. 9 is a cross-sectional view of the main part in a state where a ground wire is connected to the ground terminal.

  As shown in FIG. 1, the outlet 1 of the present embodiment is embedded in a wall surface, and a synthetic resin body 2 (see FIG. 2) and a cover 3 that form the outer shell of the outlet 1 are not shown. It is connected with a metal assembly frame and is provided with a container body 4 that is configured in a generally rectangular parallelepiped shape. The metal assembly frame is a mounting frame for attaching the outlet 1 to an embedding box or the like formed on a wall surface. Doubles as

  In the cover 3, two sets of plug insertion ports 5 including a pair of plug blade insertion ports 5 a and 5 b and a grounding electrode plug blade insertion port 5 c are arranged in parallel in the length direction of the outlet 1. . Further, a ground wire insertion port 6 for inserting an external ground wire E (see FIG. 9) is provided on one end side (left side in FIG. 1) of the container body 4. And the earth terminal 10 (refer FIG. 3) which connects the external earth wire E is accommodated in the inside of the container 4 corresponding to the earth wire insertion port 6.

  As shown in FIGS. 2 to 4, the ground terminal 10 has an external ground wire sandwiched between the terminal plate 11 that contacts the external ground wire E and the terminal plate 11 using spring force. A lock portion 12 for holding the wire E is provided, and a release button 13 for releasing the hold state of the external ground wire E by the lock portion 12 is provided. At this time, in this embodiment, the terminal board 11, the locking part 12, and the release button 13 are arranged in a pair on both sides of the container body 4 so as to correspond to each other.

  Here, in this embodiment, as shown in FIG. 2, the ground terminal 10 is separated into a terminal plate side part 10 </ b> A provided with the terminal plate 11 and a lock part side part 10 </ b> B provided with the lock part 12. In addition, the insertion part 14 is provided on the locking part side part 10B which is one of the separation parts, and the receiving part 15 which holds the insertion part 14 with a spring force is provided on the terminal plate side part 10A which is the other part. As shown in FIG. 3, the terminal plate side part 10 </ b> A and the lock part side part 10 </ b> B are connected to each other through the insertion piece 14 and the receiving part 15.

  That is, the terminal plate side part 10A is provided with a pair of internal ground connection portions 16 for connecting internal ground wires (not shown) at both ends with the receiving portion 15 interposed therebetween, and as shown in FIGS. The terminal plate 11 is bent so as to project integrally from the upper side of 16. The internal ground connection portion 16 is configured to sandwich an internal ground wire (not shown) between the lock spring 16a and the internal terminal plate 16b.

  On the other hand, as shown in FIG. 2, the locking part side part 10B is provided with a pair of locking parts 12 on both sides of the insertion piece 14, and the locking parts 12 have a spring force in a direction away from each other. As shown in FIGS. 3 and 7, the leading end 12 a of the locking portion 12 is connected to the terminal plate 11 in a state where the locking portion side part 10 </ b> B is coupled to the terminal plate side part 10 </ b> A as shown in FIGS. 3 and 7. It approaches or contacts with spring force. At this time, the space between the terminal plate 11 and the tip 12 a of the lock portion 12 is a position corresponding to the ground wire insertion opening 6.

  As shown in FIG. 5, two ground blade receiving springs 17 </ b> A and 17 </ b> B disposed inside the container body 4 corresponding to the grounding electrode plug blade insertion port 5 c are connected to the locking part side part 10 </ b> B. A ground electrode of a plug (not shown) inserted from the ground electrode plug blade insertion port 5c is inserted into the ground blade receiving springs 17A and 17B.

  The two ground blade receiving springs 17A and 17B are connected to each other via a straight connecting portion 17c, and the wire blade receiving spring 17A close to the ground terminal 10 is connected to the lock portion side part via a U-shaped connecting portion 17d. The grounding pole of the plug connected to 10B and inserted into the two grounding blade receiving springs 17A, 17B is connected to the internal grounding connection part 16 via the locking part side part 10B and the terminal plate side part 10A connected thereto. Is done.

  As shown in FIG. 2, an engaging portion 12b is provided on one side of the intermediate portion of the locking portion 12 which is a free end (movable portion), and the release button 13 is locked to the engaging portion 12b. As shown in FIGS. 4 and 8, the release button 13 is assembled to the ground terminal 10 so as to be movable up and down, with the portion 13a engaged. As shown in FIG. 1, the operation portion 13 b provided at the upper end portion of the release button 13 protrudes from the opening portion 7 that opens near the ground wire insertion opening 6 of the cover 3.

  And by pushing down the operation part 13b which protruded from the opening part 7, the front-end | tip 12a of the lock | rock part 12 can fall, and the space | interval between the terminal boards 11 can be expanded, and the external earth wire E is connected in that state. In addition, the connected external ground wire E can be disconnected.

  Further, by inserting the insertion piece 14 of the locking part side part 10B into the receiving part 15 of the terminal board side part 10A, the terminal board side part 10A, the locking part side part 10B, and the two ground blade receiving springs 17A, 17B are provided. Are integrated and incorporated into the body 4.

  At this time, there is an outer wall of the outlet 1 in the retaining direction between the parts connected to each other through the insertion piece 14 and the receiving portion 15, that is, between the terminal plate side part 10A and the lock part side part 10B. The coupling force between the body 2 and the cover 3 forming the above is added.

  With the above configuration, according to the outlet 1 of the present embodiment, the parts 10A and 10B having complicated shapes can be easily and independently separated by separating the terminal plate side part 10A and the lock part side part 10B. Each of the separated parts 10A and 10B can be connected by one-touch by inserting the insertion piece 14 provided in the lock part 10B into the receiving part 15 provided in the terminal plate part 10A. Therefore, the assembly workability of the parts 10A and 10B can be improved, and the cost reduction of the outlet 1 can be achieved in combination with the simple formation of the parts 10A and 10B.

  In this embodiment, the outer wall of the outlet 1 is formed between the terminal plate side part 10A and the lock part side part 10B connected to each other via the insertion piece 14 and the receiving part 15 in the retaining direction. Since the coupling force between the body 2 and the cover 3 is added, the parts 10A and 10B can be coupled more reliably.

  In this embodiment, the insertion piece 14 is provided on the locking part side part 10B, and the receiving part 15 is provided on the terminal board side part 10A. On the contrary, the insertion piece 14 is provided on the terminal board side part 10A. The same effect can also be obtained when the receiving part 15 is provided in the provided lock part side part 10B.

  (Second Embodiment) FIG. 10 shows a second embodiment of the present invention. The same components as those in the first embodiment are denoted by the same reference numerals, and redundant description is omitted. FIG. 10 is a perspective view showing a connection structure between the locking part side part of the ground terminal and the ground blade receiving spring.

  This embodiment basically has the same configuration as that of the first embodiment. That is, as shown in FIG. 10, two ground blade receiving springs 17A and 17B are connected to the locking part side part 10B, and these two ground blade receiving springs 17A and 17B are connected to each other through a straight connection portion 17c. In addition, the wire blade receiving spring 17A close to the earth terminal 10 is connected to the locking part side part 10B via the U-shaped connecting part 17d.

  However, in this embodiment, the locking part side part 10B and the two ground blade receiving springs 17A and 17B are separated at the U-shaped connecting part 17d portion, and at the separated part, the one locking part side part 10B side is separated. While providing the insertion piece 20, the receiving part 21 which clamps the insertion piece 20 with a spring force is provided in the other earthing | grounding blade receiving spring 17A side, The earthing terminal 10 is interposed through these insertion piece 20 and the receiving part 21 Are connected to the ground blade receiving springs 17A and 17B.

  Therefore, according to this embodiment, since the locking part side part 10B and the grounding blade receiving springs 17A and 17B are separated, the connecting part of the locking part side part 10B and the grounding blade receiving springs 17A and 17B is independent. Thus, the locking part side part 10 </ b> B and the ground blade receiving springs 17 </ b> A and 17 </ b> B separated via the insertion piece 20 and the receiving part 21 can be connected with one touch.

  By the way, although the switch of the present invention has been described by taking each embodiment as an example, the present invention is not limited to these embodiments, and various other embodiments can be adopted without departing from the gist. For example, the internal ground connection portion 16 shown in the first embodiment shows a case where the lock spring 16a is formed separately from the main body side 10Am. As shown in FIG. 11, the lock spring 16a is connected to the main body side 10Am. It can also be provided integrally.

  In the first embodiment, the terminal plate 11 of the terminal plate side part 10A is formed in a channel shape in plan view so as to surround the distal end portion of the lock portion 12, but the present invention is not limited to this, and is shown in FIG. Thus, it can also form by cutting and raising only the terminal board 11A of the part facing the front-end | tip 12a of the lock | rock part 12 from the main body side 10Am.

  Furthermore, in 1st, 2nd embodiment, although the locking part 12 is protruded from the locking part side part 10B to the both sides direction of the container body 4, as shown in FIG. The lock portion 12 </ b> A may be bent in the front-rear direction of the body 4. In this case, as shown in FIG. 14, the terminal plate 11B is formed by cutting and raising from the main body side 10Am of the terminal plate side part 10A so as to face the tip 12Aa of the locking portion 12A.

It is a perspective view of the outlet socket in the first embodiment of the present invention. It is the perspective view which isolate | separated the terminal board side part and lock part side part of the earth terminal in 1st Embodiment of this invention. It is the perspective view which assembled | attached the lock | rock part part on the terminal board side part of the earth terminal in 1st Embodiment of this invention. It is a perspective view of the earthing terminal which attached the release button in a 1st embodiment of the present invention. It is a perspective view which shows the connection structure of the lock | rock part part of the earthing terminal in 1st Embodiment of this invention, and a grounding blade receiving spring. It is a top view of the terminal board side parts of the earth terminal in a 1st embodiment of the present invention. It is the top view which assembled | attached the lock | rock part side part to the terminal board side part of the earth terminal in 1st Embodiment of this invention. It is the top view which attached the release button to the earth terminal in a 1st embodiment of the present invention. It is principal part sectional drawing of the state which connected the earth wire to the earth terminal in 1st Embodiment of this invention. It is a perspective view which shows the connection structure of the lock | rock part part of the earthing terminal in 2nd Embodiment of this invention, and a grounding blade receiving spring. It is a perspective view of the terminal board side parts which show the modification of 1st Embodiment of this invention. It is a perspective view of the terminal board side part which shows the other modification of 1st Embodiment of this invention. It is a perspective view which shows the further another modification of the lock | rock part part of the earthing terminal shown in 1st, 2nd embodiment of this invention. It is a perspective view which shows the further another modification of the terminal board side parts of the earth terminal shown to 1st, 2nd embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outlet 2 Body 3 Cover 4 Body 5c Grounding electrode plug blade insertion port 6 Ground wire insertion port 10 Ground terminal 10A Terminal board side part 10B Locking part side part 11, 11A, 11B Terminal board 12, 12A Locking part 14 , 20 Insert piece 15, 21 Receiving part 17A, 17B Ground blade receiving spring E External ground wire

Claims (3)

A grounding blade receiving spring that has a plug blade insertion port into which the grounding electrode of the plug is inserted and a grounding wire insertion port for an external ground wire, and that is short-circuited to the grounding electrode inserted from the plug blade insertion port, and from the grounding wire insertion port In the outlet where the inserted external ground wire is connected to the ground terminal that connects between the terminal plate and the lock portion, and the connecting portion is connected to the internal ground,
The ground terminal is formed by separating the terminal plate side part and the lock part side part, and an insertion piece is provided on one of the separated parts of the parts, and the insertion piece is held with a spring force on the other side. An outlet characterized in that a receiving part is provided, and the terminal plate side part and the lock part side part are connected to each other through the insertion piece and the receiving part.   A coupling force between the body and the cover that forms the outer shell of the outlet is added to the parts that are connected to each other via the insertion piece and the receiving portion, so that separation of the insertion piece and the receiving portion is suppressed. The outlet according to claim 1. The earth terminal and the ground blade receiving spring are formed separately, and an insertion piece is provided on one of the separation parts, and a receiving portion for holding the insertion piece with a spring force is provided on the other side. The outlet according to claim 1 or 2, wherein the ground terminal and the ground blade receiving spring are connected to each other via the insertion piece and the receiving portion.

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