JP5467392B2 - Plug adapter and plug adapter and outlet adapter set - Google Patents

Description

  The present invention relates to a plug adapter for fixing a plug used in electric and electronic devices and a set of a plug adapter and an outlet adapter to be fixed to an outlet, and more specifically, fixing a plug mainly used for connecting a power cord in electric and electronic devices. The present invention relates to a plug adapter and a set of outlet adapters that are fixed to the plug adapter and an outlet.

  Generally, there are two sets of plugs and outlets for connecting a power cord, or a plug having three plug terminals with a ground terminal added to the plug body and two to three facing the plug terminals. When the plug terminal is inserted into the plug terminal receptacle, the power cord provided on the plug body is connected to the indoor power line connected to the outlet body. Is. For example, many things, such as the plug described in Patent Document 1 and Patent Document 2, and the outlet described in Patent Document 3, have been invented or devised.

  These sets of plugs and outlets are mainly designed to connect the power cords of electrical or electronic equipment to the indoor power line, and electrical connection is assured once the plugs and outlets are connected. .

  However, the mechanism for reliably connecting the mechanism is insufficient, and the plug inserted into the outlet easily displaces even if a slight force is applied. Also, the contact part of the plug terminal and the plug terminal receiver is exposed to indoor air, and if left in a connected state for a long period of time, it will cause dust accumulation and / or electric leakage due to water wetting. It could cause a fire.

  For these problems, a plug adapter fixed to the plug and an outlet adapter fixed to the outlet are provided, and the plug adapter and the outlet adapter are securely connected by a hook mechanism. Various techniques have been invented or devised for the plug adapter and the outlet adapter connected to reliably cover the contact portion between the plug terminal and the plug terminal receiver. Patent Document 4 invented by the inventors of the present application discloses a technique that can be applied to a commercially available plug and outlet set at a low cost.

  However, in commercial plugs and outlets, the shape of plug terminals and plug terminal receptacles are relatively standardized, but the shape of plug body is not standardized and is within a certain range. There are plug bodies of various shapes and dimensions.

  Therefore, it is easy to provide a plug adapter that can be fixed to each plug body having a specific shape and dimension. However, providing a common plug adapter for plug bodies having various shapes and dimensions is not possible. It was difficult.

Japanese Patent Laid-Open No. 8-255651 JP 2000-182732 A JP 2000-340286 A Utility Model Registration No. 3079478

  The present invention has been made in order to address the above-described problems, and an object of the present invention is to provide a common, which can be easily fixed to a plurality of plug bodies having different shapes and dimensions. To provide a plug adapter.

  At the same time, another object of the present invention is to achieve a mechanical coupling with a simple structure, at the same time as the electrical connection between the plug terminal and the plug terminal receptacle when the plug terminal is inserted, and to achieve the plug terminal reliably. Another object of the present invention is to provide a set of plug adapter and outlet adapter that secures the sealing property against the outside of the contact portion of the plug terminal receiver.

  The plug adapter according to the present invention made to achieve the above object has a plug body and a plurality of plug terminals protruding from the plug body (hereinafter, the protruding direction of the plug terminal is downward and the opposite direction is upward. A plug adapter for fixing a plug for connecting a power source in which the Z-axis direction is perpendicular to the Z-axis direction and the direction perpendicular to the Z-axis direction is the horizontal direction (X and Y axis directions). The plug includes: an annular side portion; a bottom portion provided with an opening through which the plug terminal can pass; and a hollow portion surrounded by the side portion and the bottom portion and capable of accommodating all or part of the plug body. The hollow portion of the plug adapter includes an elastic body that fixes the plug main body when the plug main body is received, and the elastic body includes an inner wall of a side portion of the plug adapter. A plate-like portion along, characterized in that it comprises a fin from the plate-like portion of the plurality of elastic stretched towards the interior of the plug adapter. In such a plug adapter, it is preferable that the side portion of the plug adapter further includes one or more hooks that are elastic and repels the outside, and one or more plugs into which the plug terminals can be inserted on the upper surface. An outlet that exposes the plug terminal receiving recess from the opening when fixed to the outlet having an outlet body having a terminal receiving recess and a support extending substantially horizontally from the outlet body. It is preferable that the hook of the side part of the plug adapter is engaged with an engaging part provided at an inner edge of the opening of the adapter.

  In addition, the set of the plug adapter and the outlet adapter according to the present invention made to achieve the above-described object is a plug having a plug body and a plurality of plug terminals protruding from the plug body, and the plug terminal can be inserted into the upper surface. A plug for power supply connection and a plug applied to a set of outlets, comprising an outlet body having one or more plug terminal receiving recesses and an outlet having a support portion extending substantially horizontally from the outlet body. A set of an adapter and an outlet adapter, wherein the plug adapter is substantially a hollow columnar shape, and includes an annular side portion, a bottom portion having an opening through which the plug terminal can pass, and the side portion and the bottom portion. An enclosed hollow part capable of accommodating all or part of the plug body, and accommodating the plug. The side of the plug adapter further includes one or more hooks that are elastically repelled outward, and the outlet adapter is substantially plate-shaped and has an area at least equal to the bottom of the plug adapter. When the plug adapter is fitted and has an opening that can be engaged by the hook, and is fixed to the upper surface of the outlet so as to cover the outlet, the opening is at least the plug terminal A receiving recess is exposed, and an inner edge of the opening portion of the outlet adapter includes an engaging portion corresponding to a hook on a side portion of the plug adapter, and the hollow portion of the plug adapter has the plug when the plug body is accommodated. An elastic body for fixing the main body, and the elastic body includes a plate-like portion along an inner wall of a side portion of the plug adapter, and the plate-like portion to the plug. Characterized in that it comprises a fin with a plurality of elastic stretched towards the interior of Guadaputa.

  In the set of the plug adapter or the plug adapter and the outlet adapter, the fin is preferably provided in a plurality of stages along the Z-axis direction, and the shape when the fin is viewed from the Z-axis direction is preferable. Is preferably a mixture of a rectangle and a trapezoid. And when there are two said plug terminals and the cross section seen from the said Z-axis direction of the hollow part of the said columnar plug adapter is a rectangle or a square, it corresponds to the long side and short side of the said rectangle. Or the elastic bodies corresponding to two adjacent sides of the square are connected, one of the elastic bodies is provided with a plurality of rectangular fins, the other of the elastic bodies is provided with a plurality of trapezoidal fins, The set of rectangular fins and the set of trapezoidal fins are preferably staggered along the Z-axis, and there are three plug terminals, and the columnar plug adapter is hollow. In the case where the cross section of the portion viewed from the Z-axis direction is substantially hexagonal, elliptical, or circular, it is preferable that the fins are all trapezoidal in shape.

  According to the present invention, when the plug main body is accommodated in the plug adapter, the plug main body is fixed to the plug adapter by the plurality of elastic fins. Can be taken. Also, the bottom of the plug adapter is fitted into the opening of the outlet adapter and fixed by hook engagement, and the outlet adapter is fixed to the outlet body via the outlet support, so the plug is eventually plugged into the outlet In addition, the mechanism is securely coupled, and even if a force is applied from the outside, it cannot be easily removed. In addition, the contact part between the plug terminal and the plug terminal receiver is securely sealed by the bottom part of the plug adapter and is not directly exposed to indoor air. Accidents in normal use and accidents caused by mischief of infants are avoided.

It is the top view (figure seen from the Z-axis direction) before the assembly of the set of the plug and outlet according to the first embodiment, (A) is the plug, (B) is the plug adapter, and (C) is the outlet adapter. , (D) is an outlet. BRIEF DESCRIPTION OF THE DRAWINGS It is the figure before an assembly of the plug and outlet set concerning a 1st Example, (A) is a front view and front sectional drawing (figure seen from X-axis direction), (B) is a side view and side sectional drawing It is a figure (figure seen from the Y-axis direction). It is the figure after the assembly of each of a plug and an outlet socket concerning the 1st example, (A) is a front sectional view, and (B) is a side sectional view. FIG. 2 is a front sectional view (left view) and a side sectional view (right view) of each of the plug and the plug adapter according to the first embodiment, and (A) is a view before the plug is inserted into the plug adapter. FIG. 6B is a view after the plug is inserted into the plug adapter. (A) is a top view which shows the shape of the elastic body which concerns on a 1st Example, (B) is a top view which shows the shape of the elastic body which concerns on a 2nd Example. (A) And (B) is a top view which shows the shape where the elastic body which concerns on 3rd Example was connected, (C), (D), (E) is 4th-6th implementation, respectively. It is a top view which shows the connected shape of the elastic body which concerns on an example. It is a top view before the assembly of the set of the plug and outlet concerning a 7th example, (A) is a plug, (B) is a plug adapter, (C) is an outlet adapter, and (D) is an outlet. It is the figure after the assembly of each of a plug and an outlet socket concerning the 7th example, (A) is a front sectional view, and (B) is a side sectional view. It is a figure after the assembly of each of a plug and an outlet socket concerning an 8th example, (A) is a front sectional view and (B) is a side sectional view. 9A is a front sectional view (left view) and a top view (right view) of each of the plug and the plug adapter according to the ninth embodiment, and FIG. 9A is a view before the plug is inserted into the plug adapter. ) Is a view after the plug is inserted into the plug adapter. It is the top view (figure seen from the Z-axis direction) before the assembly of the set of the plug and outlet according to the tenth embodiment, (A) is a plug, (B) is an adapter, and (C) is an outlet. . It is the figure before an assembly of the set of the plug and outlet socket concerning a 10th example, (A) is a front view and front sectional view (figure seen from the X-axis direction), (B) is a side view and side section. It is a figure (figure seen from the Y-axis direction).

  Embodiments of the present invention will be specifically described below with reference to the drawings. Throughout the drawings, the plug main body is equipped with a power cord for the device, and the outlet main body is naturally provided with an indoor power line, but it is not shown for simplicity. In addition, all the drawings shown below are schematic diagrams. Details of the actual shape of each component (chamfering, roughening for anti-slip, etc.) and internal details (plug terminal receptacle, lead wiring, etc.) For simplicity, it is not shown.

  1 to 4 are diagrams showing details of a plug and outlet set according to the present embodiment. FIG. 1 is a top view before assembly, in which the right side of (A) is a plug, (B) is a plug adapter, (C) is an outlet adapter, and (D) is an outlet. Here, the left side of FIG. 1A shows the X, Y, and Z coordinate axes of FIGS. 1 to 4 as a whole, and for the sake of convenience, it is shown only for FIG. 1A, but FIG. ) (C) (D) also applies. 2A and 2B are views before assembly, and FIG. 2A is a front view and a front cross-sectional view (viewed from the X-axis direction), and in detail, is a cross-sectional view taken along x1-x in FIG. On the other hand, (B) is a side view and a side cross-sectional view (a view seen from the Y-axis direction), that is, a cross-sectional view taken along y1-y in FIG.

  FIG. 3 is a view after assembling of the plug side and the outlet side, (A) is a front sectional view, and more specifically, a sectional view taken along x2-x in FIG. On the other hand, (B) is a side cross-sectional view, specifically, a cross-sectional view taken along y2-y in FIG. 4A and 4B are a front cross-sectional view (left view) and a side cross-sectional view (right view) taken along the Z axis, which is the center line, of each of the plug and the plug adapter. FIG. FIG. 4B is a view before insertion, and FIG. 5B is a view after the plug is inserted into the plug adapter.

  Referring to FIGS. 1 and 2, a plug 10 and a plug adapter 20 that are components on the plug side, and an outlet adapter 30 and an outlet 50 that are components on the outlet side are shown. Among these, the plug 10 includes a plug body 12 and two plug terminals 14 and 15 protruding from the plug adapter. (Hereinafter, the projecting direction of the plug terminal is the lower direction, the opposite direction is the upper Z-axis direction, and the direction perpendicular thereto is the horizontal direction (X, Y-axis direction).)

  Further, the plug adapter 20 has a hollow columnar shape, and is composed of an annular side portion and a bottom portion having a substantially rectangular cross section. The hollow part surrounded by the inner wall 22 of the side part and the upper surface of the bottom part can accommodate all or a part of the plug body, and the bottom part is provided with a through hole 26 through which the plug terminals 14 and 15 can pass.

  Further, two sides of the four sides are provided with hooks 24 each having an engaging claw 25 that elastically repels the outside, and two sides corresponding to the hooks 24 among the four sides of the bottom are: A leg portion 27 is further provided on the bottom surface of the bottom portion. The inner wall of the hook 24 recedes outward from the inner wall 22 at the side to form a hook recess 28 so that the hook can temporarily move inward during engagement.

  On the other hand, the outlet 50 includes an outlet body 51 and an outlet adapter 30. The outlet body 51 has a substantially rectangular parallelepiped shape, and includes two plug terminal receiving recesses 52 and 53 that open on the upper surface thereof. The support part 54 extended | stretched to the horizontal direction is provided.

  The two plug terminal receiving recesses 52 and 53 correspond to the plug terminals 14 and 15. In the present embodiment, the number of sets of plug terminal receiving recesses 52 and 53 included in the outlet 50 is two, and the upper surface of the outlet body 51 includes a portion sandwiched between the sets of plug terminal receiving recesses 52 and 53. It is substantially flat.

  The outlet adapter 30 has a rectangular plate shape whose outer periphery is substantially the same size as the outlet support portion 54, and includes an opening 32 that can expose the upper surface of the outlet body 51. A part of the periphery of the opening 32 is downward. A leg receiving part 36 corresponding to the leg part 27 of the plug adapter is formed in the recess, and the engaging claw 25 of the hook 24 of the plug adapter is formed on the part of the inner edge of the opening where the leg receiving part is formed. The engaging part 33 corresponding to is provided.

  The outlet adapter 30 further includes six engaging convex portions 34 on the lower surface and a peripheral portion 35 on the outer periphery of the lower surface, and the position and shape of the engaging convex portion 34 are engaging concave portions 55 provided on the support portion 54 of the outlet. The position and shape of the peripheral edge portion 35 correspond to the position and shape of the notch 56 provided on the outer periphery of the outlet support portion 54, and each has been effectively standardized in the industry. (In the figure, both the engaging convex portion 34 and the engaging concave portion 55 are shown as rectangular parallelepipeds, but actually, each has a predetermined hook and hook receiving shape.)

  Referring to FIG. 3, the plug body 12 is accommodated in the hollow portion of the plug adapter 20 so that the plug terminals 14 and 15 protrude through a through hole 26 provided at the bottom of the plug adapter 20. Is assembled. (Upper drawings of FIGS. 3A and 3B)) Of the hollow portion of the plug adapter 20, a fixing means 60 described later is provided in a portion (hatched portion) that is not occupied by the plug body 12. The plug 10 and the plug adapter 20 are integrated.

  On the other hand, the outlet 50 is generally fixed to a housing such as an inner wall of the house with a screw (not shown) via a support portion 54. Then, the outlet adapter 30 is engaged with the outlet 50 by the six pairs of the engaging convex portion 34 and the engaging concave portion 55, the peripheral edge portion 35, and the notch 56, and the outlet adapter 30 and the outlet 50 are assembled. Integrate. (Fig. 3 (A), (B) lower drawing of each)

  At that time, the upper surface of the outlet body 51 having the plug terminal receiving recesses 52 and 53 is exposed in the opening 32 of the outlet adapter 30, and the upper surface of the outlet body 51 and the upper surface of the outlet adapter 30 are connected to the leg receiving portion 36. Except in substantially the same plane.

  Therefore, when the plug is not inserted, accidents due to catching can be suppressed, and the leg receiving portion 36 is slightly recessed, so that the plug insertion operation is simplified. When the plug is inserted, the bottom lower surface and the leg 27 of the plug adapter 20 are fitted to part of the upper surface and the side surface of the outlet body 51, so that the plug terminals 14 and 15 inserted into the plug terminal receiving recesses 52 and 53 are inserted. Is securely sealed.

  Now, when the above-mentioned fixing means 60 accommodates and fixes a plug body having a specific shape and size, a dedicated plug adapter is prepared and engaged, or the plug and the plug adapter are manufactured integrally from the beginning. Was given by However, in the case of the present application, plug bodies of various shapes and sizes can be accommodated and fixed using the same fixing means in one plug adapter.

  Referring to FIG. 4, the elastic bodies 70 and 75 serve as the fixing means 60 in this embodiment. FIG. 4A is a diagram before the plug 10 is inserted into the plug adapter 20, and the elastic bodies 70 and 75 are plate-like portions along the inner wall 22 on the side of the plug adapter 20 (also indicated by 70 and 75). ) And three elastic fins 72 and 77 extending substantially horizontally from the plate-shaped portion toward the inside of the plug adapter.

  The fins 72 and 77 are staggered in the Z (up and down) direction (shifted so as to come to an intermediate position). The elastic body 70 is mounted in advance on the two sides of the inner wall 22 of the plug adapter where the hook 24 is located, and the elastic body 75 is mounted on the remaining two sides. The elastic body 70 is mounted on the hook recess 28 of the plug adapter. It has the back convex part 74 which occupies the part which does not move. The back projection 74 is fitted into the hook recess 28 to fix the position of the elastic body with respect to the plug adapter.

  4B is a view after the plug 10 is inserted into the plug adapter 20, and the fin 72 of the elastic body 70 and the fin 77 of the elastic body 75 are each pulled by the side surface of the plug body 12 and bent downward, The plug 10 is fixed to the plug adapter 20 by applying pressure to the plug body due to the stress caused thereby. Accordingly, with respect to the plug main body 12 having an arbitrary shape, the plug main body, and therefore the plug 10 is connected to the plug adapter 20 as long as the contour of the cross section is partly between the tip and the root of the fin 72 (77). The plug adapter 20 to which the elastic bodies 70 and 75 are attached can be improved.

  Referring to FIG. 5A, the shapes of the fins 72 and 77 are both substantially rectangular. In this case, not only the amount of contact between the fin and the plug body is maximized, but even if the fin is curved downward (FIG. 4B), the fins 72 and 77 are staggered to each other. There is little overlap in the part, and therefore there is little uneven stress due to the overlap.

  Referring to FIG. 5B, in this embodiment, the shapes of the fins 72 and 77 are substantially rectangular and substantially trapezoidal, respectively, unlike the case of the first embodiment. In this case, the amount of contact between the fin and the plug body may slightly decrease at the fin 77, but even if the fin is curved downward (FIG. 4B), both end portions of the fin 72 and 77 of the fin Therefore, the stress does not become uneven due to the overlap, and a high stress for fixing the plug as a whole can be obtained.

  In the first and second embodiments, the elastic bodies 70 and 75 are individually formed and four are arranged on the inner wall of the plug adapter. However, referring to FIGS. The elastic bodies 70 and 75 are connected to form the elastic bodies 80 and 82 and are attached to the inner wall of the plug adapter while being bent at the connecting portion 91. In this way, the number of parts of the elastic body and the number of man-hours for loading the inner wall of the plug adapter can be reduced, and the stress caused by bending at the continuous contact works to fit the elastic bodies 80 and 82 to the inner wall of the plug adapter.

  As shown in FIG. 6C, in this embodiment, two elastic bodies 70 and 75 are connected to form an elastic body 84. The number of parts is not different from the case of the third embodiment (FIG. 6B), and the workability of mounting on the inner wall is better than that of the third embodiment.

  As shown in FIG. 6D, in this embodiment, two elastic bodies 70 and 75 are connected and formed as an elastic body 86 in a shape bent at a right angle by the connecting portion 92. Compared to the case of the fourth embodiment, it is not necessary to bend, and the workability of mounting on the inner wall is better than that of the fourth embodiment.

  As shown in FIG. 6E, in this embodiment, as in the case of the fourth embodiment, two elastic bodies 70 and 75 are connected to form an elastic body 88. However, unlike the case of Example 4, the cross section is “S” -shaped. When the elastic body 88 is bent at the connecting portion 93, an appropriate stress is generated, and the elastic body 88 fits well to the inner wall of the plug adapter.

  In the case of Example 1, the upper surface of the outlet body 51 was substantially flat including the part sandwiched between the plug terminal receiving recesses 52 and 53. Therefore, in order for the upper surface of the outlet body 51 and the upper surface of the outlet adapter 30 to be substantially in the same plane, the leg receiving portion 36 is placed between the plug terminal receiving recesses 52 and 53. Therefore, the leg portions cannot be provided on two sides of the four sides of the bottom portion of the plug adapter 20, and the plug terminals may not be completely sealed.

  FIG. 7 is a top view of the set of the plug and the outlet according to the present embodiment before assembly, where the right side of (A) is the plug, (B) is the plug adapter, (C) is the outlet adapter, (D ) Is an outlet. Here, the diagram on the left side of FIG. 7A shows the X, Y, Z coordinate axes of FIGS. 7 to 8 as a whole, and for the sake of convenience, it is described only for FIG. 7A, but FIG. ) (C) (D) also applies. FIG. 8 is a view after assembling the plug and the outlet according to the present embodiment. FIG. 8A is a front sectional view (a view seen from the X-axis direction). It is sectional drawing cut by x. On the other hand, (B) is a side cross-sectional view (a view seen from the Y-axis direction), that is, a cross-sectional view taken along y1-y in FIG.

  That is, in this embodiment, the upper surface of the outlet body 51 is not flat including the portion sandwiched between the plug terminal receiving recesses 52 and 53, and the protrusions 51a and 51b are provided for each set of the plug terminal receiving recesses 52 and 53. I am doing. Therefore, the outlet adapter 30 can be provided with the annular leg receiving portion 36 around the opening 32 without sacrificing the uniform flatness (after assembly) of the upper surface of the outlet body and the upper surface of the outlet adapter. As a result, the leg portion 27 of the plug adapter 20 has an annular shape, and sealing of the plug terminal after the plug is inserted becomes complete.

  9A and 9B are views after assembling of the plug and the outlet according to the present embodiment, in which FIG. 9A is a front sectional view and FIG. 9B is a side sectional view. In the present embodiment, unlike the first and seventh embodiments, the bottom portion 27 of the plug adapter 20 is flat without a leg portion, while the outlet adapter 30 has an engaging portion 33 corresponding to the hook engaging claw 25 of the plug adapter. Therefore, the upper surface of the outlet body 51 becomes lower than the upper surface of the outlet adapter 30, and the uniform flatness is slightly sacrificed.

  However, after the plug is inserted, the bottom surface of the bottom 27 of the plug adapter is in surface contact with the top surface of the outlet body 51, so that the minimum sealing with respect to the plug terminal is performed.

  In FIG. 9, the upper shape of the outlet body 51 is the same as that of the first embodiment, but even if the upper shape of the outlet body 51 is the same as that of the seventh embodiment (having the convex portions 51 a and 51 b), Or, conversely, even if the plug terminal receiving recesses are arranged on a substantially flat surface, the same plug adapter having a flat bottom can be used, and the number of components can be reduced.

  FIG. 10 is a front sectional view (left view) and a top view (right view) of each of the plug 10 and the plug adapter 20 according to the present embodiment. FIG. 10A is a view before the plug is inserted into the plug adapter. (B) is a view after the plug is inserted into the plug adapter.

  In the present embodiment, unlike the first, seventh, and eighth embodiments, the plug 10 has three plug terminals (positive and negative power supply terminals 14 and 15 and a ground terminal 16), and therefore corresponds to the bottom of the plug adapter 20. Three through holes 261, 262, 263 are provided.

  In this embodiment, the horizontal cross-sectional shape of the plug 10 is substantially circular, and the horizontal cross-sectional shape of the plug adapter 20 is substantially hexagonal in both the outer shape and the inner wall, but is not limited to this, Various shapes such as an ellipse, a rectangle, and a polygon can be taken. In this embodiment, the plug adapter 20 has a hexagonal shape, and includes hooks 25 only on two opposite sides, and the inner wall 22 of the plug adapter includes hook recesses 28 on all six sides regardless of the presence or absence of hooks. However, the present invention is not limited to this.

  As for the leg portion of the plug adapter 20, in this embodiment, the case where there is no leg portion is shown as in the eighth embodiment (FIG. 9). 7 may have an annular leg.

  On the outlet side, when the upper shape of the outlet body is partially convex as in the first embodiment, and when there is a convex portion for each set of individual plug terminal receiving recesses as in the seventh embodiment, the eighth embodiment In some cases, a set of plug terminal receiving recesses is arranged on a substantially flat surface as shown in FIG. 1, but it is not shown in the figure because it is essentially the same as in Examples 1, 7, and 8. .

  In the present embodiment, the elastic body 70 as the fixing means 60 is divided into six parts, and all have back projections 74, and each back projection is fitted into the corresponding hook recess 28 to plug the position of the elastic body 70. Secure against the adapter.

  Furthermore, each elastic body 70 is provided with three substantially trapezoidal fins, and the fins of the adjacent elastic bodies are stretched without staggering in this embodiment, but are not limited thereto. According to the present embodiment, for a plug having a horizontal cross section having an arbitrary size and shape within a certain range, a plug adapter that is firmly fixed can be obtained once the plug is inserted.

  FIG. 11 is a top view of the plug and outlet set according to the present embodiment before assembly. FIG. 11A shows the plug 10 on the right side, FIG. 11B shows the adapter 40, and FIG. 11C shows the outlet 50. . Here, the diagram on the left side of FIG. 11A shows the X, Y, and Z coordinate axes of FIGS. 11 to 12 as a whole, and is shown only for FIG. 11A for convenience, but FIG. ) (C) also applies. FIG. 12 is a view of the plug 10, the adapter 40, and the outlet 50 according to the present embodiment before assembly. FIG. 12A is a front view and a front sectional view (viewed from the X-axis direction). FIG. 12 is a cross-sectional view taken along x1-x in FIG. On the other hand, (B) is a side view and a side cross-sectional view (a view seen from the Y-axis direction), that is, a cross-sectional view taken along y1-y in FIG.

  That is, in the present embodiment, unlike the first embodiment, the plug adapter unit 120 and the outlet adapter unit 130 are integrally formed to form the adapter 40. When the adapter 40 is attached and fixed to the upper surface of the outlet 50 through the engagement of the engaging convex portion 34 and the engaging concave portion 55, the plug adapter portion 120 and the outlet adapter portion 130 are integrated to cover the upper surface of the outlet 50. In addition to covering, the leg portion 127 has an annular shape and surrounds the portion of the side portion of the outlet body 51 that is in contact with the upper surface, so that sealing of the plug terminal after plug insertion is complete.

  In the case of the present embodiment, the engagement strength between the engagement convex portion 34 and the engagement concave portion 55 is designed to be greater than the engagement strength between the plug body 12 and the plug adapter portion 120 of the adapter via the elastic body. it can. Then, the plug main body 12 can be detached from the plug adapter part 120 of the adapter 40 in a state where the outlet adapter part 130 of the adapter 40 is engaged with the support part 54 of the outlet. This embodiment is suitable for a case where the plug is rarely attached to and detached from the outlet and used almost.

  Although the present embodiment has been described in comparison with the first embodiment, the integration of the plug adapter and the outlet adapter can be similarly applied to the seventh to ninth embodiments.

  As the fixing means 60 in Examples 7 to 10, it is obvious that the elastic bodies having various shapes as shown in Examples 1 to 6 can be applied as they are or without substantial modification. Do not repeat. In particular, in Example 10, the fixing means 60 (elastic body) is not shown in order to avoid complication.

  Through the above Examples 1 to 10, the plug adapter and the outlet adapter, or the material of the adapter in consideration of chemical resistance, impact resistance, moldability, gloss, etc. The same ABS (Acrylonitrile-Butadiene-Styrene) resin as in the above case is used. On the other hand, as a material of the elastic body, an ordinary elastomer (Elastomer) resin can be used in consideration of appropriate elasticity.

  Therefore, in the plug and outlet set according to the present invention, the plug adapter and the outlet adapter, or the adapter in which the plug adapter and the outlet adapter are integrated, can be divided into a case where the horizontal cross section of the plug body is substantially rectangular and a substantially circular shape. By simply preparing two types according to the case, it is possible to adapt to any plug belonging to the size and shape range including most of the commercially available plugs.

  Plug adapters, outlet adapters, adapters, and elastic bodies to be inserted into plug adapters can all be manufactured at low cost by molding using general-purpose resin. Elastic bodies-plug adapter assembly (press-fit), plug- Plug adapter assembly (press-fit), plug adapter-outlet adapter detachment (hook engagement), outlet adapter (or adapter)-outlet assembly (fitting or engagement) are all simple and require no special techniques. Can be executed.

  As a result, the electrical connection between the plug and the outlet can be easily and reliably combined with the mechanism, and the plug terminal receiving recess of the outlet can be sealed from the outside by the bottom of the plug adapter (or adapter plug adapter). Therefore, it is possible to effectively prevent dust and the like from entering the contact portion between the plug terminal and the outlet-side contact. That is, a set of plugs and outlets that are easy to handle and free from accidental attachment / detachment and leakage accidents can be provided at low cost.

DESCRIPTION OF SYMBOLS 10 Plug 12 Plug main body 14,15,16 Plug terminal 20 Plug adapter 22 Inner wall 24 Hook 25 Engagement nail | claw 26,261,262,263 Through-hole 27 Leg part 28 Hook recess 30 Outlet adapter 32 Opening part 33 Engagement part 34 Engagement Convex part 35 Peripheral part 36 Leg receiving part 40 Adapter 42 Opening part 50 Outlet 51 Outlet body 51a, 51b Outlet body convex part 52, 53 Plug terminal receiving recessed part 54 Support part 55 Engaging recessed part 56 Notch 57 Concave part of the outlet body 60 Fixing means 70, 75 Elastic bodies 72, 77, 78 Fin 74 Back projections 80, 82, 84, 86, 88 Elastic bodies 91, 92, 93 Connecting portion 120 Plug adapter portion 127 Leg portion 130 Outlet adapter portion

Claims (12)

A plug body and a plurality of plug terminals projecting from the plug body (hereinafter, the Z-axis direction in which the projecting direction of the plug terminal is downward and the opposite direction is upward, and the direction perpendicular thereto is the horizontal direction (X , Y-axis direction))) and a plug adapter for fixing a plug for power supply connection,
The plug adapter has a substantially hollow columnar shape, and includes an annular side portion, a bottom portion having an opening through which the plug terminal can pass, and all or the plug body surrounded by the side portion and the bottom portion. The plug can be accommodated with a hollow portion capable of accommodating a part,
The hollow portion of the plug adapter includes an elastic body that fixes the plug body when the plug body is accommodated,
The elastic body includes a plate-like portion along an inner wall of a side portion of the plug adapter, and a plurality of elastic fins extending from the plate-like portion toward the inside of the plug adapter. Plug adapter.   The plug adapter according to claim 1, wherein the fin is provided in a plurality of stages along the Z-axis direction.   The plug adapter according to claim 1 or 2, wherein the shape of the fin as viewed from the Z-axis direction is a mixture of a rectangle and a trapezoid. In the case where there are two plug terminals and the cross section viewed from the Z-axis direction of the hollow portion of the columnar plug adapter is substantially rectangular or square,
The elastic bodies corresponding to the long and short sides of the rectangle or corresponding to two adjacent sides of the square are connected, and one of the elastic bodies includes a plurality of rectangular fins, and the other of the elastic bodies The trapezoidal fin is provided in a plurality of stages, and the set of rectangular fins and the set of trapezoidal fins are staggered with respect to each other along the Z-axis. Plug adapter as described in any one of. In the case where there are three plug terminals, and the cross section viewed from the Z-axis direction of the hollow portion of the columnar plug adapter is substantially hexagonal, elliptical or circular,
The plug adapter according to claim 1, wherein the fins are all trapezoidal.   6. The plug adapter according to claim 1, wherein the side portion of the plug adapter further includes one or more hooks that are elastic and repel outward.   When the support portion is fixed to the outlet body having one or more plug terminal receiving recesses into which the plug terminal can be inserted on the upper surface and a support portion extending substantially horizontally from the outlet body, the support portion is The hook of the side part of the plug adapter is configured to engage with an engaging part provided at an inner edge of the opening part of the outlet adapter that exposes the plug terminal receiving recess from the opening part. The plug adapter according to claim 6, which is characterized by: A plug having a plug main body and a plurality of plug terminals protruding from the plug main body (hereinafter, the Z-axis direction in which the protruding direction of the plug terminal is downward and the opposite direction is upward, and the direction perpendicular thereto is horizontal. (X and Y axis directions)),
Plug and outlet for power connection comprising an outlet body having one or more plug terminal receiving recesses into which plug terminals can be inserted on the upper surface and an outlet having a support portion extending substantially horizontally from the outlet body. A set of plug adapter and outlet adapter applied to the set of
The plug adapter has a substantially hollow columnar shape, an annular side portion, a bottom portion having an opening through which the plug terminal can pass, and the entire plug body surrounded by the side portion and the bottom portion, or The plug can be accommodated with a hollow portion capable of accommodating a part,
The side of the plug adapter further comprises one or more hooks that are elastic and repel the outside,
The outlet adapter is substantially plate-shaped and has an area that is at least equal to the bottom of the plug adapter and is fitted with the plug adapter and can be engaged by the hook. When fixed at the support portion of the outlet so as to cover, the opening portion exposes at least the plug terminal receiving recess,
The inner edge of the outlet portion of the outlet adapter includes an engaging portion corresponding to a hook on a side portion of the plug adapter,
The hollow portion of the plug adapter includes an elastic body that fixes the plug body when the plug body is accommodated,
The elastic body includes a plate-like portion along an inner wall of a side portion of the plug adapter, and a plurality of elastic fins extending from the plate-like portion toward the inside of the plug adapter. A set of plug adapter and outlet adapter.   The set of the plug adapter and the outlet adapter according to claim 8, wherein the fin is provided in a plurality of stages along the Z-axis direction.   10. The plug adapter and outlet adapter set according to claim 8, wherein a shape of the fin viewed from the Z-axis direction is a mixture of a rectangle and a trapezoid. In the case where there are two plug terminals and the cross section viewed from the Z-axis direction of the hollow portion of the columnar plug adapter is substantially rectangular or square,
The elastic bodies corresponding to the long and short sides of the rectangle or corresponding to two adjacent sides of the square are connected, and one of the elastic bodies includes a plurality of rectangular fins, and the other of the elastic bodies The trapezoidal fin is provided in a plurality of stages, and the set of rectangular fins and the set of trapezoidal fins are staggered with respect to each other along the Z-axis. A set of plug adapter and outlet adapter as described in any of the above. In the case where there are three plug terminals, and the cross section viewed from the Z-axis direction of the hollow portion of the columnar plug adapter is substantially hexagonal, elliptical or circular,
The set of the plug adapter and the outlet adapter according to any one of claims 8 to 10, wherein the fins are all trapezoidal.

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