JP6098006B2 - Outlet receptacle structure and outlet with the same structure - Google Patents

Description

  The present invention relates to an outlet receptacle structure for an outlet and an outlet provided with the same structure.

  2. Description of the Related Art Conventionally, multiway outlets and adapters having a plurality of types of insertion openings and blade receiving structures so as to be compatible with the insertion of a plurality of power supply plugs having different standards are known (for example, see Patent Document 1). Such an outlet receptacle or adapter blade receiving structure has a plurality of insertion portions in an electrically conductive and integrated conductor, and one of them is selected and used at the time of use. In Patent Document 1, as a blade receiving structure of an adapter into which two types of round blades are inserted, two strip-shaped conductor plates are brought into contact with each other, the center thereof is fixed, and both sides thereof are inflated to form 8 as a whole. A structure is disclosed in which each of the inflated portions in the shape of a letter is an insertion portion. As another example, two types of multiway outlets and their blade receiving structures will be described with reference to FIGS.

  FIGS. 21, 22 (a) and 22 (b) show an outlet 93 that can accommodate both a plug 91 having three round blades 9 and a plug 92 having two round blades 9. The outlet 93 is provided with a total of five insertion ports, namely, the insertion ports 9A, 9A, 9E for the plug 91 and the insertion ports 9B, 9B for the plug 92. A structure 94 and one blade support structure 95 are provided. Each blade receiving structure 94, 95 has an opening 9a for inserting and fixing a power supply line and an installation line, and a fixing screw 9b. The blade receiving structure 94 has insertion portions A and B for receiving the round blade 9 inserted from the insertion ports 9A and 9B. The blade receiving structure 95 includes the round blade 9 inserted from the insertion port 9E. It has an insertion part E for receiving. These blade receiving structures 94 and 95 are manufactured by machining from a brass material, and are provided with split grooves so that the insertion portion A and the like are expanded when the round blade 9 is inserted.

  FIGS. 23A, 23B, and 23C show an outlet 93 that can handle two types of plugs (not shown) having three round blades and different standards. Each blade receiving structure 96, 97 is used in a recessed space provided in a holding member 93 a fixed to the back surface of the outlet 93. In the blade receiving structures 96 and 97, spaces formed between two conductive plates opposed to each other are used as insertion portions A and B and insertion portions E1 and E2. For example, the blade receiving structure 96 includes a blade receiving portion 96a in which insertion portions E1 and E2 are formed by pressing a conductive plate, a fixing portion 96b having an opening 9a for inserting and fixing an electric wire, and a fixing screw 9b. It is configured with. The blade receiving portion 96a bridges two conductor plates opposed to each other at one lower portion, and the bridged portion is fixed to the upper portion of the fixing portion 96b by caulking, whereby the blade receiving portion 96a and the fixing portion 96b are fixed. Are integrated with each other.

JP 2011-524612 A

  However, the blade receiving structure as shown in Patent Document 1 and FIGS. 21 to 23 described above has the following problems. The blade receiving structure shown in Patent Document 1 has a structure in which two insertion portions are deformed independently of each other by a central fixing portion, and the elasticity of two strip-shaped conductor plates cannot be effectively utilized. ing. The blade support structure shown in FIGS. 21 and 22 is low in productivity due to machining of brass material, has a limit in cost reduction, and maintains appropriate elasticity to provide durability against repeated use. Difficult to occur and product performance tends to vary. The blade receiving structure shown in FIG. 23 has an enlarged diameter and a round shape when the round blade 9 is inserted due to the elasticity of the portion that bridges the two conductive plates opposed to each other and the elasticity of the portion extended therefrom. The blade 9 is held, and its operation and function largely depend on the elastic characteristics of the conductor plate. Therefore, even in this blade receiving structure, there is no degree of freedom in material selection, there is a limit to cost reduction, and it is considered that durability is low.

  SUMMARY OF THE INVENTION The present invention solves the above-described problems, and provides an outlet blade receiving structure and an outlet equipped with the same structure that can achieve high productivity and reliability with a simple configuration and can reduce costs. Objective.

  To achieve the above object, an outlet blade receiver structure of the present invention has a plurality of insertion portions into which plug blades are inserted, and one of them is selected and used during use. A conductive elastic plate disposed opposite to each other, the conductive elastic plate being connected to each other by connecting ends thereof to a ring shape, and a plurality of insertion portions into which blades arranged between the connection portions are inserted. The insertion portion has a structure in which the space between the conductive elastic plates is widened to guide the insertion of the blade, and when the blade is inserted into any one of them, the conductive elastic plate of the other insertion portion Is elastically deformed, and the insertion space is widened and pressed against the blade.

In this outlet receptacle structure, the circumference of the space surrounded by the ring is kept at a predetermined constant value because the conductive elastic plate has a ring shape closed by the connecting portion.
In this outlet receptacle receiving structure, when the blade is inserted into any one of the insertion portions, the material of the conductive elastic plate of the other insertion portion flows toward the insertion portion where the blade is inserted.
The outlet blade receiving structure may include a widening restriction member that is disposed on the outer surface of the conductive elastic plate between the adjacent insertion portions and restricts the spatial expansion of the conductive elastic plate.

  In this outlet receptacle structure, the widening restricting member is constituted by a rib formed on a body that houses and holds the conductive elastic plate, and a portion of the rib that contacts the conductive elastic plate is arcuate, and its radius of curvature is However, you may make smaller than the curvature radius of the electroconductive elastic board which the said rib structure contacts.

  In this outlet receptacle structure, the widening restricting member is constituted by a rib formed on a body that houses and holds the conductive elastic plate, and a portion of the rib that contacts the conductive elastic plate is arcuate, and its radius of curvature is However, you may make larger than the curvature radius of the electroconductive elastic board which the said rib structure contacts.

  In this blade receiving structure for an outlet, the connecting portion is formed by bridging the edge of the conductive elastic plate opposite to the side on which the blade is inserted, and the widening limiting member is provided on the side that is not bridged. You may arrange | position also in a connection part in order to restrict | limit the mutual spatial expansion of a conductive elastic board.

  The outlet of the present invention is characterized by including any one of the above-described blade receiving structures for outlets.

  According to the receptacle receiving structure for an outlet of the present invention and the outlet having the same structure, the conductive elastic plate of the other insertion portion is elastically deformed when the blade is inserted into any of the insertion portions provided between the connecting portions. Therefore, stable and reliable operation and durability can be realized by the mutual operation of each part. In such a blade receiving structure, the conductive elastic plate can be made thinner than the conventional one, so that the material cost can be suppressed, and it can be produced at a low cost by a highly productive press process.

(A) (b) is a perspective view which shows a mode that the plug of a different specification is each inserted in the outlet provided with the blade receptacle structure for outlets concerning one Embodiment of this invention. The perspective view of the blade receptacle structure for the receptacles. (A) is a top view of the blade receiving structure, (b) is a plan view of a state in which a round blade is inserted into the blade receiving structure. The perspective view of the modification of the blade receiving structure. (A) is a top view of the modification, (b) is a plan view of a state where a round blade is inserted in the modification. (A) is a top view of the other modification of the same blade receiving structure, (b) is a plan view of a state in which a round blade is inserted in the modification. (A) is a top view of still another modification of the blade receiving structure, (b) is a plan view of a state in which a round blade is inserted in the modification. (A) is a top view of still another modification of the blade receiving structure, (b) is a plan view of a state in which a round blade is inserted in the modification. The exploded perspective view of the outlet socket concerning one embodiment of the present invention. (A) is a front plan view of the outlet, (b) is a rear plan view of the outlet, and (c) is a side view of the outlet installed on a wall surface. (A) is the FF sectional view taken on the line of Fig.10 (a), (b) is the GG sectional view taken on the line of Fig.10 (a). (A) is a perspective view of the blade receptacle structure of the receptacle, (b) is a perspective view of a pillar terminal used in the blade receptacle structure. (A) is a perspective view of the blade receptacle structure for single insertion parts of the outlet, (b) is a perspective view of a pillar terminal used for the blade receptacle structure for single insertion parts. (A) is a perspective view of the blade receptacle structure of the outlet, (b) is a schematic plan view of a state in which the blade receptacle structure is housed in the body of the outlet. The perspective view which isolate | separates and shows the body and blade receiving structure of the outlet socket. The perspective view of the state which stored the blade receiving structure in the body of the outlet. The perspective view which looked at the same outlet from the back. The exploded perspective view of the modification of the outlet socket. The perspective view of the blade receiving structure of the modification. (A) is the perspective view which looked at the modification from the back surface. The perspective view of the conventional outlet. (A) is the perspective view which looked at the outlet socket from the back surface, (b) is the perspective view of the blade receptacle structure of the outlet socket. (A) is a front view of another example of a conventional outlet, (b) is an external view of a blade receiving structure housed in the outlet, (c) is a perspective view of one of the blade receiving structure.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an outlet blade receiving structure according to an embodiment of the present invention and an outlet having the same structure will be described with reference to the drawings. 1, 2, and 3 show an outlet blade receiving structure and an outlet having the same structure. As shown in FIGS. 1 (a) and 1 (b), an outlet blade support structure 1 (hereinafter referred to as a blade support structure 1) constitutes an outlet 10 by combining the two. The outlet 10 can correspond to two types of plugs 90A and 90B having different intervals between the plug blades 9, and the plug 90A and the plug 90B are inserted into the dedicated insertion portion A or insertion portion B, respectively. However, both of the two plugs 90A and 90B cannot be inserted into the outlet 10 at the same time.

  As shown in FIG. 2, the blade receiving structure 1 includes two conductive elastic plates 2 arranged to face each other, and the conductive elastic plate 2 is connected to a connecting portion 21 that connects the end portions to each other to form a ring shape. It has the insertion part 22 (distinguishable insertion part A, B) which is arrange | positioned along the part 21 and in which the blade 9 is inserted. The blade support structure 1 has a ring shape in a topological sense, and has a boundary space X communicating with each other between the insertion portions 22 adjacent to each other. Further, the blade receiving structure 1 includes a widening restricting member 3 that is disposed on the outer surface of the conductive elastic plate 2 between the adjacent insertion portions 22 and restricts the spatial expansion of the conductive elastic plates 2. That is, the width of the boundary space X is restricted by the widening restriction member 3. Further, the circumferential length of the ring connecting the two conductive elastic plates 2 of the blade receiving structure 1 is set such that the blade 9 can be inserted into only one of the two insertion portions 22. That is, the conductive elastic plate 2 has a closed ring shape due to the presence of the two connecting portions 21, whereby the circumference of the space surrounded by the rings can be maintained at a predetermined constant value. Each connecting portion 21 is formed in such a manner that the surfaces of the end portions of the conductive elastic plate 2 are bonded to each other. The widening restricting member 3 is in contact with the conductive elastic plate 2 at least when the blade 9 is inserted into the blade receiving structure 1, and is slid relative to the widening restricting member 3 in a state where the conductive elastic plate 2 is in contact with the widening restricting member 3. The conductive elastic plate 2 is held movably.

  The insertion portion 22 has a structure in which the space between the conductive elastic plates 2 is widened to insert and guide the blade 9. That is, the plug blade 9 is a so-called round blade having an outer diameter of a cylindrical shape, and each insertion portion 22 has an elliptical opening, and the blade 9 is guided to facilitate its insertion. The opening is provided with a cut surface, an outward opening angle (not shown), and the like. The shape of the blade receiving structure 1 as viewed from the insertion side of the blade 9 has an 8-digit number (topologically the same as a donut) in which the central portion is not connected. The conductive elastic plate 2 has a concavo-convex structure that is smoothly continuous between the two connecting portions 21, and the concavo-convex structure constitutes the space of the insertion portions A and B and the boundary space X. The blade support structure 1 is produced by, for example, press-molding a plate material having the elasticity of an electric conductor to produce each conductive elastic plate 2, two conductive elastic plates 2 facing each other, and connecting both ends to each other. Manufactured in a ring shape. Formation of the connecting portions 21 at both ends can be performed using any method such as caulking, brazing, welding, bending, bonding, and screwing.

  FIG. 3 shows the operation of the blade support structure 1. As shown to Fig.3 (a), in the state in which the blade 9 is not inserted, the opening of each insertion part 22 is smaller than the dimension of the blade 9 (it shows with the broken line in the figure). As shown in FIG. 3B, for example, when the blade 9 is inserted into the insertion portion A, the conductive elastic plate 2 of the insertion portion B is elastically deformed, and the insertion space is widened and pressed against the blade 9. That is, as the blade 9 is inserted into the insertion portion A, as indicated by an arrow a, the material of the conductive elastic plate 2 constituting the insertion portion B flows toward the insertion portion A, and the space of the insertion portion B is narrowed. The space of the insertion part A is expanded, and the blade 9 is accommodated in the insertion part A. The widening restricting member 3 restricts the expansion of the boundary space X, and the two connecting parts 21 keep the circumference of the ring by the conductive elastic plate 2 at a constant value. The press contact with the conductive elastic plate 2 against the blade 9 is strengthened.

  According to the blade receiving structure 1, the conductive elastic plate 2 of the other insertion portion 22 is elastically deformed when the blade 9 is inserted into any of the insertion portions 22 provided between the connecting portions 21. A stable and reliable operation can be realized by the mutual operation of each part of the elastic plate 2. The cooperative operation occurs when the entire conductive elastic plate 2 constituting the blade support structure 1 bends. The synergistic operation in which the material of the conductive elastic plate 2 constituting the insertion portion 22 where the blade 9 is not inserted flows into the insertion portion 22 side where the blade 9 is inserted substantially causes the elastic material that presses the blade 9 into contact. This corresponds to operating under a material having a larger dimension, and improves the durability reliability of the blade support structure 1. In other words, in the case of an elastic material with a small size, the pressure welding operation is due to abrupt elongation of the material, that is, an elastic deformation having a large elongation with respect to the material size. Reliability will be inferior. On the other hand, according to the blade receiving structure 1, since the elastic material can be increased substantially without increasing the overall dimensions, durability reliability can be improved without increasing the size.

  In addition, such a blade receiving structure 1 can make the conductive elastic plate 2 thinner than the conventional one, so that the material cost can be reduced, and the processing becomes easier and the productivity is high. It can be produced at low cost by processing or the like. As the conductive elastic plate 2 is made thinner, the material fluidity increases, so that the blade receiving structure 1 can more effectively reduce the cost and improve the durability and reliability. Further, since the blade receiving structure 1 includes the widening restriction member 3, the holding force (pressure contact force to the blade 9) can be further enhanced by the backup effect by the widening restriction member 3, or the conductive force can be obtained without reducing the holding force. The material thickness of the elastic plate 2 can be further reduced. Since the blade support structure 1 has a simple structure, the productivity can be increased, the quality can be stabilized, and the mold can be made cheaper. The blade receiving structure 1 has springiness, that is, deformability only in the lateral direction of the conductive elastic plate 2 (in the widening direction of the insertion portion 22), and the material in the uninserted position of the blade 9 is fluidized. When configuring the outlet, the outlet can be configured in a space-saving manner.

  4 and 5 show a modification of the blade receiving structure 1. As shown in FIG. 4, the blade receiving structure 1 of the present modification does not include the widening restriction member 3 in the blade receiving structure 1 shown in FIG. 2 and the like described above. The widening restricting member 3 enhances the holding force by its backup effect. However, by increasing the strength of the conductive elastic plate 2, a sufficient holding force can be realized and the widening restricting member 3 can be omitted. As shown in FIGS. 5A and 5B, such a blade receiving structure 1 has a width in the boundary space X (a distance between the conductive elastic plates 2) from the width W1 when the blade 9 is not inserted. It operates so as to increase to the width W2 (W1 <W2). Even in this case, the entire conductive elastic plate 2 bends, and the material of the conductive elastic plate 2 constituting the insertion portion 22 where the blade 9 is not inserted assists the contact pressure on the insertion portion 22 side where the blade 9 is inserted. As a result, the endurance reliability of the blade support structure 1 is improved.

  FIGS. 6A and 6B show another modification of the blade receiving structure 1. The blade receiver structure 1 of this modification is provided with three insertion portions 22 (A, B, C) in the blade receiver structure 1 shown in FIG. A widening limiting member 3 is provided. Even in this case, the blade receiving structure 1 is such that the entire conductive elastic plate 2 bends and the material of the conductive elastic plate 2 constituting the insertion portion 22 into which the blade 9 is not inserted is inserted into the insertion portion 22 in which the blade 9 is inserted. The cooperative action of flowing into the side occurs. For example, when the blade 9 is inserted into the insertion portion A, as indicated by arrows a and b, the material of the conductive elastic plate 2 in each insertion portion B and C flows toward the insertion portion A.

  In addition, although the example which has arrange | positioned insertion part A, B, and C linearly between the connection parts 21 was shown, it can be set as not only this arrangement but the bending arrangement | positioning. In the case of the bent arrangement, the two conductive elastic plates 2 do not necessarily have the same (symmetric) structure and length. More generally, the number of insertion portions 22 between the connecting portions 21 can be arbitrary, and the arrangement and presence of the widening restriction member 3 can also be arbitrary. Any desired multiway outlet can be easily configured by combining a plurality of such blade receiving structures 1. For example, the widening restriction member 3 may be provided only on one side, not on both sides of the boundary space X. For example, when the two insertion portions 22 are arranged in a V shape instead of a straight shape, the widening limiting member 3 can be omitted outside the bend. Further, the blade receiving structure 1 is not limited to a round blade, and the insertion portion 22 can be configured according to a blade having an arbitrary shape such as an elliptical blade or a plate-like blade in cross section. Each of the plurality of insertion portions 22 can be arranged to correspond to the blades 9 having different shapes and different sizes.

  7 and 8 show still another modified example of the blade support structure 1. The blade support structure 1 shown in FIGS. 7 (a) and 7 (b) is the same as the blade support structure 1 shown in FIG. 2 and the like, but the portion of the widening limiting member 3 that contacts the conductive elastic plate 2 has an arc shape and its curvature. An example in which the radius R is smaller than the radius of curvature R1 of the conductive elastic plate 2 with which the widening restriction member 3 contacts (R <R1) is shown. Further, the blade receiving structure 1 shown in FIGS. 8A and 8B is the blade receiving structure 1 shown in FIG. 2 and the like described above, and the portion of the widening limiting member 3 that contacts the conductive elastic plate 2 has an arc shape. An example in which the radius of curvature R is larger than the radius of curvature R2 of the conductive elastic plate 2 with which the widening restricting member 3 comes into contact (R> R2) is shown. According to the configuration of R <R1 in FIG. 7, the structure of the conductive elastic plate 2 is more linear and the length L1 in the longitudinal direction is shorter (L1 <L2) than the configuration of R> R2 in FIG. Therefore, the conductive elastic plate 2 which is a material for the blade receiver can be further reduced in weight, and the cost can be reduced.

  On the other hand, according to the configuration of R> R2 in FIG. 8, the length L2 in the longitudinal direction of the conductive elastic plate 2 can be made longer (L1 <L2) than the configuration of R <R1 in FIG. Greater springiness (elastic deformation ability) can be imparted to the conductive elastic plate 2. That is, in the case of the blade support structure 1 shown in FIGS. 8A and 8B, the elastic material can be increased without increasing the size of the blade support structure 1, and due to repeated fatigue generated by repeatedly inserting and removing the blade. The decrease (sagging) of the contact pressure can be further reduced. Which of the configurations shown in FIGS. 7A and 7B or the configurations shown in FIGS. 8A and 8B can be selected as appropriate according to the usage environment and purpose of the outlet. In addition, the configuration is not limited to the above, and a configuration of R = R1 = R2 may be employed.

  9 to 17 show an example of the outlet 10 according to the embodiment of the present invention. As shown in FIGS. 9, 10 (a), (b), (c), and FIGS. 11 (a) and (b), the outlet 10 includes a body 11, two blade receiving structures 1 having two insertion portions, A blade support structure 1a having one insertion portion and a cover 12 are provided, and are used, for example, embedded in a wall surface. The outlet 10 is an outlet that can accommodate both a plug having two round blades and a plug having three round blades. The body 11 is a resin molded part that constitutes the front side of the outlet 10 and is exposed on the wall surface. The body 11 includes insertion ports 11A and 11A for 2-pin plugs and insertion ports 11B, 11B, and 11E for 3-pin plugs. ing. The body 11 accommodates and holds the blade receiving structures 1, 1, 1a (see FIG. 16 described later). A blade receiving structure 1 is provided in the back of the insertion ports 11A and 11B, and a blade receiving structure 1a is provided in the back of the insertion port 11E. Each blade receiving structure 1, 1 a is provided with a pillar terminal 4. The pillar terminal 4 has a square cylindrical terminal frame and a terminal screw 41, and a part of a conductor of the blade receiving structure 1 or the blade receiving structure 1a and an end of an external power wire or a ground wire are used as a terminal frame. It is a component that is inserted and electrically connected to each other by the terminal screw 41. The cover 12 is a resin molded part that constitutes the back side of the outlet 10 and is embedded in the wall surface, and has storage recesses 12 a, 12 a, and 12 b that store the pillar terminals 4.

  As shown in FIG. 12A, the blade support structure 1 includes two conductive elastic plates 2, and includes two insertion portions A and B and one boundary space X, as described above with reference to FIG. However, the structure of the connecting portion 21 is different from that of the blade receiving structure 1 described above. In the blade receiving structure 1 shown in FIG. 2 and the like described above, a portion (extended portion) obtained by extending the conductive elastic plate 2 in the longitudinal direction from each of the two insertion portions A and B is bonded to each other. ing. On the other hand, the connecting portion 21 of the blade receiving structure 1 shown in FIG. 12A is configured by bridging the edge of the extending portion 21a opposite to the side where the blade is inserted, and extending. The parts 21a are separated from each other in parallel, and are connected to each other via an edge to constitute a connecting part 21. The bridging structure has shoulder portions that are spread outward so as to be once away from each other surface of the conductive elastic plate 2. It can be seen that when the conductive elastic plate 2 is developed, the blade receiving structure 1 is composed of a single plate having a hole in the center. Therefore, the blade receiving structure 1 is composed of one part and can be manufactured by progressive press molding of a plate material. One of the two connecting portions 21 is provided with a connection terminal 23 for insertion into the insertion port 40 of the pillar terminal 4 shown in FIG. The connection terminal 23 is a terminal that is electrically connected to a power wire (not shown) by a terminal screw 41 in the insertion port 40. As shown in FIG. 13A, the blade receiving structure 1a has an insertion port 11E and can be manufactured by progressive press molding of one elastic conductor plate, and the pillar terminal shown in FIG. 13B. 4 is provided with a connection terminal 23 for insertion into the four insertion openings 40.

  14A and 14B, the configuration and operation of the widening restriction member 3 with respect to the blade receiving structure 1 will be described. When the blade support structure 1 is deformed during its operation, the arrow p is used to restrict the spatial expansion of the conductive elastic plates 2 located between the insertion portions A and B adjacent to each other and the connecting portion 21. The indicated restraining force is applied. The restraining force is generated by the widening limiting member 3 having a rib structure in the body 11. The restraining force on the conductive elastic plate 2 located at the connecting portion 21 limits the spatial expansion of the conductive elastic plates 2 on the side where the blade is not inserted, that is, the side where the blade is inserted. The connecting portion 21 has a bridging structure having a shoulder portion, so that it easily spreads when the blade is inserted, so that the insertion is easy and a guiding effect is exhibited. Further, when the blade is inserted all the way into the connecting portion 21, the bridging portion restrains the blade. In addition to the reliable holding, it is possible to give the inserter a feeling of response to the insertion of the blade. Since the widening restricting member 3 in the connecting portion 21 can improve the rigidity of the blade receiving structure 1, the material of the conductive elastic plate 2 can be made thin. Moreover, since the shoulder part of the connection part 21 can enlarge the material part which elastically deforms, elastic fatigue can be suppressed and durability reliability can be improved.

  The blade receiving structures 1 and 1a are accommodated in the body 11 as shown in FIGS. The body 11 is provided with a widening restricting member 3 for restricting the widening of the blade receiving structure 1 formed by a rib formed by resin molding. The blade support structure 1 is inserted and arranged between the widening restriction members 3. Further, the blade receiving structure 1 is arranged so that the shoulder portion of the connecting portion 21 is placed on the widening limiting member 3. The outlet 10 is assembled as shown in FIG. The power line and the ground line can be inserted from one direction into the insertion port 40 of the pillar terminal opened at the projecting portion of the cover 12 as indicated by an arrow c. Electrically connected to 1a.

  18, 19, and 20 show other examples of the outlet 10. As shown in FIG. 18, the outlet 10 is different from the outlet 10 shown in FIG. 9 and the like in the structure around the connecting portion 21 of the blade receiving structure 1, and a 2-pin plug and a 3-pin plug are inserted. It is the same in that it is an outlet. The outlet 10 is assembled by housing a blade receiving structure 1, 1, 1 a in a body 11 and covering the cover 12. As shown in FIG. 19, the connecting portion 21 of the blade receiving structure 1 is configured by bridging the edge of the conductive elastic plate 2 opposite to the side where the blade is inserted. This is the same as the blade receiving structure 1 shown in FIG. The connecting portion 21 does not have a shoulder portion, and extended portions 21a obtained by extending the conductive elastic plate 2 outward from the two insertion portions A and B terminate in parallel without approaching each other. These points are different from the blade support structure 1 shown in FIG. When such a blade support structure 1 is deformed during its operation, the binding force indicated by the arrow p is shown in FIG. 18 as in the blade support structure 1 shown in FIGS. 14 (a) and 14 (b). It is added by the widening restricting member 3 in the body 11.

  The blade receiving structure 1 has a longer direction (two connecting portions) than the blade receiving structure 1 shown in FIG. 14A and the like by terminating the extending portions 21 a in parallel when forming the connecting portions 21. 21) can be shortened. Therefore, as shown in FIG. 20, the outlet 10 having the blade receiving structure 1 can be configured more compactly than the outlet shown in FIG.

  The present invention is not limited to the above-described configuration, and various modifications can be made. For example, the configurations of the above-described embodiments can be combined with each other. Further, the blade receiving structure 1 shown in FIG. 1 to FIG. 8 has been described with a configuration in which two conductive elastic plates 2 are connected in two places to form a ring shape, but instead of this configuration, one conductive elastic plate is used. It is good also as a structure which bent the board and connected the both ends in one place, and was comprised in the ring shape. Moreover, you may comprise the blade support structure 1 with which both ends were connected by opening a slit along the centerline of one rectangular electroconductive elastic board, and bend | folding at the said centerline.

1, 1a Outlet blade receiving structure 2 Conductive elastic plate 21 Connection portion 22, A, B, C Insertion portion 3 Widening limiting member (rib)
9 blades 10 outlets 11 body 90A, 90B plug

Claims (8)

In the outlet blade receiving structure for the outlet, which has a plurality of insertion portions into which the blades of the plug are inserted and any one of them is selected and used in use.
Comprising conductive elastic plates arranged opposite to each other;
The conductive elastic plate has a connecting portion that connects the end portions to each other in a ring shape, and a plurality of insertion portions into which the blades arranged between the connecting portions are inserted,
The insertion portion has a structure in which a space between the conductive elastic plates is widened to guide the insertion of the blade, and when the blade is inserted into any one of them, the conductive elastic plate of another insertion portion The receptacle receiving structure for an outlet is characterized in that is elastically deformed to widen and press contact the insertion space with respect to the blade.   The outlet according to claim 1, wherein the conductive elastic plate is formed in a ring shape closed by the connecting portion, so that the circumference of the space surrounded by the ring is maintained at a predetermined constant value. Blade receiving structure.   2. When the blade is inserted into any one of the insertion portions, the material of the conductive elastic plate of the other insertion portion flows toward the insertion portion into which the blade is inserted. Or the receptacle receiving structure for electrical outlets of Claim 2. 2. The outlet socket according to claim 1, further comprising a widening restricting member that is disposed on an outer surface of the conductive elastic plate between the insertion portions adjacent to each other to limit a spatial expansion of the conductive elastic plate. Blade support structure.   The widening restricting member is configured by a rib formed on a body that houses and holds the conductive elastic plate, a portion of the rib that contacts the conductive elastic plate is in an arc shape, and a curvature radius thereof is the rib structure. 5. The blade receiving structure for an outlet according to claim 4, wherein the radius of curvature of the conductive elastic plate is in contact with the outlet.   The widening restricting member is configured by a rib formed on a body that houses and holds the conductive elastic plate, a portion of the rib that contacts the conductive elastic plate is in an arc shape, and a curvature radius thereof is the rib structure. The outlet blade receiving structure according to claim 4, wherein a radius of curvature of the conductive elastic plate in contact with the outlet is larger. The connecting portion is formed by bridging the edges of the conductive elastic plate opposite to the side on which the blade is inserted;
The widening limiting member, according to claim 4 to claim 6, wherein said that it is also arranged on the connecting portion in order to limit the mutual spatial extent of the conductive elastic plate on the side which is not the bridging The blade receptacle structure for outlets as described in any one of Claims.   An outlet comprising the outlet receiving structure for an outlet according to any one of claims 1 to 7.

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