JP6158844B2 - Plug-in plug, plug-in adapter - Google Patents

Description

  The present invention relates to an insertion plug and an insertion plug adapter that are not easily plugged into an outlet by an unintended user.

  As for the outlet and the plug, a technique for preventing an electric shock or an accident due to a child having inserted the plug into the outlet has been known. This technique makes it impossible for an unintended user to easily insert the plug into the outlet.

  An example of the technique is described in Patent Document 1. In the technique described in Patent Document 1, a rotating lid provided so as to be rotatable around an intermediate portion of a plurality of plug insertion ports is provided on the front surface of the outlet of the outlet. The rotating lid covers the plug insertion port at the reference position, and the plug insertion port is exposed when the rotation lid is rotated to a predetermined position. Thereby, the insertion plug can be inserted into the plug insertion port.

  Patent Document 2 discloses an integrated outlet adapter with a switch, characterized in that all outlets are connected to wall outlets having a plurality of ports and are connected by a plurality of conductive plug blades. ing. A movable part such as a slide mechanism is provided on the plug blade on the back of the main body of the outlet adapter with switch. For this reason, the outlet adapter with a switch can be inserted into a wall outlet or the like even when the distance between the centers of the plurality of plug outlets is different.

JP 2003-068388 A JP 2006-286453 A

  However, the technique described in Patent Document 1 described above is a technique in which the outlet side is improved, and the structure of the existing outlet needs to be changed. Therefore, the technique described in Patent Document 1 has a problem that the existing outlet plug cannot be used as it is.

  In addition, the technique described in Patent Document 2 changes the interval between two plugs in order to match the shape with an existing outlet. Therefore, at the beginning of the plug connection to the outlet, there is a possibility that the interval between the two plugs can be inserted into the outlet as it is, and even a child can easily insert the plug into the outlet. Therefore, there is a problem that there is no effect of preventing mischief by an unintended user.

  An object of the present invention is to provide an insertion plug and an insertion plug adapter that can solve the above-described problems.

  The first insertion plug according to one aspect of the present invention changes the relative positional relationship between the pair of plug blades, based on external factors, from a state in which the plug plug and plug outlet are not inserted into the outlet socket, A plug state changing unit for changing to a state where it can be inserted into the outlet socket is provided.

  According to the present invention, it is possible to use an existing outlet plug as it is, and to prevent an accident that an unintended user inadvertently inserts the plug into the outlet.

FIG. 1 is an example of a perspective view of an insertion plug 100 according to the first embodiment of the present invention. FIG. 2 is an example of a cross-sectional view showing the internal configuration of the insertion plug 100 according to the first embodiment of the present invention. FIG. 3 is a cross-sectional view taken along the line A-A ′ of the plug 100 of FIG. 2 according to the first embodiment of the present invention. FIG. 4 is a perspective view showing an example of the positional relationship between the plug 100 and the outlet socket according to the first embodiment of the present invention. FIG. 5 is an example of a perspective view showing another example of the positional relationship between the insertion plug 100 and the outlet outlet in the first embodiment of the present invention. FIG. 6 is an example of a perspective view of an insertion plug adapter that can change an existing insertion plug to an insertion plug that provides the same effect as the present embodiment, as a modification of the first embodiment of the present invention. is there. FIG. 7 is an example of a perspective view of the plug 110 in the second embodiment of the present invention. FIG. 8 is an example of a cross-sectional view showing the internal configuration of the plug 110 according to the second embodiment of the present invention. FIG. 9 is a block diagram showing a functional configuration of the insertion plug 120 according to the third embodiment of the present invention.

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

[First Embodiment]
FIG. 1 is an example of a perspective view of the plug 100 according to the first embodiment of the present invention, and FIG. 2 is a cross-sectional view showing the internal configuration of the plug 100 according to the first embodiment of the present invention. It is an example. Referring to FIGS. 1 and 2, the plug 100 includes plug blades 11 a and 11 b, protrusions 12 a and 12 b, springs 13 a and 13 b, a housing 14, and a power cable 15. The direction in which the pair of plug blades 11a and 11b are arranged is the x-axis direction, the longitudinal direction of the plug blades 11a and 11b, that is, the direction in which the plug 100 is inserted into the outlet, and the short direction of the plug blades 11a and 11b. The thickness direction of the housing 14 of the plug 100 is defined as the z-axis direction.

  Next, the structure of the insertion plug 100 in 1st Embodiment is demonstrated.

  The plug blades 11a and 11b are a pair of metal members that are inserted into an outlet socket in order to obtain power supply.

  Plug blades 11a and 11b are fixed to the pair of protrusions 12a and 12b, respectively.

  The springs 13a and 13b are compressed between the inner wall 141 at the center of the housing 14 and the protrusions 12a and 12b, and a restoring force acts in the direction of pushing the protrusions 12a and 12b outward. The springs 13a and 13b may have any form as long as the protrusions 12a and 12b are pushed outward. Further, the inner wall 141 at the center of the housing 14 may be omitted, and a single spring may be provided between the protruding portions 12a and 12b, and both the protruding portions 12a and 12b may be pushed outward.

  The housing 14 accommodates the components of the insertion plug 100. However, the plug blades 11 a and 11 b and the protruding portions 12 a and 12 b partially protrude out of the housing 14. Further, only one end of the power cable 15 connected to the plug blades 11 a and 11 b is accommodated in the housing 14. Moreover, the housing | casing 14 is set as the structure accommodated so that protrusion part 12a, 12b can be moved only to a x-axis direction.

  One end of the power cable 15 is electrically connected to the plug blades 11a and 11b. The power cable 15 energizes devices connected via the plug blades 11a and 11b.

  FIG. 3 is a cross-sectional view taken along the line A-A ′ of the plug 100 of FIG. 2 according to the first embodiment of the present invention. Plug blades 11a and 11b are attached to projecting portions 12a and 12b which are pushed out from the housing 14 in the x-axis direction by the restoring force of the springs 13a and 13b and project to the inner wall 142 of the housing 14. FIG. 4 is a perspective view showing the positional relationship between the plug 100 and the outlet socket at this time. In FIG. 4, the plug blades 11a and 11b are wider than the outlet insertion port. In this state, the plug 100 cannot be inserted into the outlet socket. When the protrusions 12a and 12b are pushed into the center against the restoring force of the springs 13a and 13b, the plug blades 11a and 11b move to the center, and the protrusions 12a and 12b hit the inner wall 141 of the housing 14 and stop. The position where the plug blades 11a, 11b and the projecting portions 12a, 12b stop at this time is the place where the outlet of the outlet matches. FIG. 5 is a perspective view showing the positional relationship between the insertion plug 100 and the outlet insertion port at this time. In this state, the plug 100 can be inserted into the outlet socket. In addition, since the position of the plug blades 11a and 11b coincides with the outlet of the outlet, the force required to push the protrusions 12a and 12b into the center against the restoring force of the springs 13a and 13b is It is desirable that the force be such that it cannot be pushed in by mischief.

  In addition, when the plug is inserted into the outlet, the plug blades 11a and 11b are connected between the plug blades 11a and 11b by the restoring force of the springs 13a and 13b. The distance of. With the power of a child, the protrusions 12a and 12b cannot be pushed in to make the width of the plug blades 11a and 11b the same as the width of the outlet socket. For this reason, the plug 100 is not inserted into the outlet socket.

  In this manner, the plug 100 prevents an unintended user, for example, a child from easily inserting the plug into an outlet due to mischief.

  As described above, in the first embodiment of the present invention, from the state in which the pair of plug blades 11a and 11b cannot be inserted into the outlet socket, the relative positions of the pair of plug blades based on external factors. Change the relationship. And it changes to the state which can be inserted in an outlet socket by the change.

  Therefore, there is no possibility that the gap between the plug blades 11a and 11b of the plug plug can be directly inserted into the outlet when the plug is connected to the outlet. Therefore, an unintended user, for example, a child is prevented from easily inserting the plug into the outlet due to mischief. Furthermore, the effect of preventing mischief can be further enhanced by the restoring force of the springs 13a and 13b.

  In addition, as a modification of the first embodiment of the present invention, a perspective view of an insertion plug adapter that allows an existing insertion plug to be used as an insertion plug of the present modification that provides the same effects as the present embodiment. An example of the diagram is shown in FIG. In this modification, instead of the power cable 15 in the first embodiment, a position that cannot be seen in FIG. 6, that is, a surface opposite to the surface from which the blades 11 a and 11 b protrude in the y-axis direction of the housing 14, A second outlet socket 16 is provided. The terminal inside the second outlet socket 16 is electrically connected to the plug blades 11a and 11b. For this reason, by inserting the existing plug 19 into the second outlet 16, the existing plug 19 can be used as the plug 101 of this modification. In this case, in order to prevent erroneous insertion of the existing plug 19 into the second outlet socket 16, the existing plug 19 is prevented from being removed from the second outlet socket 16. It is desirable to have a mechanism. For example, a mechanism is conceivable in which the existing plug 19 is fixed by screwing in a state where the plug 19 is inserted into the second outlet 16.

  As another modified example, a method of electrically controlling the position of the plug blade is also conceivable. In this case, for example, a biometric authentication or non-contact chip sensor is built in so that only a specific user can change the position of the plug blade, and the plug blade position is changed to the outlet socket only when the authentication process by the sensor is completed. The control part controlled by the state which can be inserted is provided. A piezoelectric sensor is used as the sensor, and when the force exceeding the extent that the child cannot easily insert the plug into the outlet is electrically measured by the piezoelectric sensor as in the first embodiment, the control unit The position may be controlled so that it can be inserted into the outlet.

[Second Embodiment]
Next, a second embodiment of the present invention will be described in detail with reference to the drawings. Hereinafter, the description overlapping with the above description is omitted as long as the description of the present embodiment is not obscured.

  FIG. 7 is an example of a perspective view of the plug 110 according to the second embodiment of the present invention, and FIG. 8 is a cross-sectional view showing the internal configuration of the plug 110 according to the second embodiment of the present invention. It is an example. Referring to FIGS. 7 and 8, the plug 110 includes plug blades 11a and 11b, rotating portions 27a and 27b corresponding to the respective plug blades, protrusions 22, springs 23, a casing 24, and a power cable. 15. Similarly to the first embodiment, the direction in which the pair of plug blades 11a and 11b are arranged is the x-axis direction, and the longitudinal direction of the plug blades 11a and 11b, that is, the direction in which the insertion plug 110 is inserted into the outlet socket is the y-axis direction. The thickness direction of the housing 24 of the plug 110 is defined as the z-axis direction. However, in FIG. 8, the outer wall portion outside the casing 24 is not shown.

  The rotating portions 27a and 27b are gear-like members that are attached to one end of the plug blades 11a and 11b in the y-axis direction and have the y-axis direction as a rotation axis.

  The protruding portion 22 includes a rack portion 28 on the lower side in the z-axis direction, that is, on the side not protruding from the housing 24. The rack portion 28 is geared and meshes with the gears of the rotating portions 27a and 27b. As a result, when the protruding portion 22 is pressed downward in the z-axis direction, the rotating portions 27a and 27b rotate by a predetermined angle based on the downward movement of the rack portion 28 in the z-axis direction. As a result, the pressing of the protruding portion 22 causes a rotational movement about the y-axis direction of the plug blades 11a and 11b.

  The spring 23 is compressed and provided between the inner wall of the housing 24 (not shown in FIG. 8) and the protrusion 22, and a restoring force acts in the direction of pushing the protrusion 22 outward, that is, upward in the z-axis direction. The form of the spring 23 may be any form as long as the protrusion 22 is pushed outward.

  The housing 24 houses the components of the plug-in plug 110. However, part of the plug blades 11 a and 11 b and the protruding portion 22 protrudes outside the housing 24. Further, only one end of the power cable 15 connected to the plug blades 11 a and 11 b is accommodated in the housing 24. The casing 24 has a structure in which the protruding portion 22 can move only in the z-axis direction.

  With reference to FIG. 8, the operation of the plug 110 in the present embodiment will be described. The casing 24 is shown only around the spring 23 in FIG.

  The rack portion 28 is provided below the projecting portion 22 that is pushed out from the housing 24 in the z-axis direction by the restoring force of the spring 23 and projects to the inner wall of the housing 24 that is not shown in FIG. It is done. The rotating portions 27a and 27b are provided so as to mesh with the rack portion 28 with the protruding portion 22 sandwiched along the x-axis direction. The plug blades 11a and 11b are attached to the rotating portions 27a and 27b, respectively. When the protruding portion 22 is not operated, the plug blades 11a and 11b with respect to the insertion plug 110 are not parallel to the z-axis direction as the broken plug blades 11a and 11b in FIG. In this state, the plug 110 cannot be inserted into the outlet socket. When the protruding portion 22 is pushed down in the z-axis direction against the restoring force of the spring 23, the rack portion 28 is pushed down, and the rotating portions 27a and 27b rotate. The protrusion 22 hits the inner wall 241 of the housing 24 and stops. The solid plug blades 11a and 11b in FIG. 8 are an example of the positional relationship of the plug blades 11a and 11b with respect to the plug 110 at this time. At this time, the plug blades 11a and 11b are parallel to the z-axis direction. In this state, the plug 110 can be inserted into the outlet socket. In addition, in order to make the plug blades 11a and 11b parallel to the z-axis direction, the force necessary to push down the protrusion 22 downward in the z-axis direction against the restoring force of the spring 23 cannot be pushed by the child. The power of the degree.

  In addition, if the child pulls out the insertion plug with mischief when the insertion plug 110 is inserted into the outlet socket, the angle of the plug blades 11a and 11b changes due to the restoring force of the spring 23. With the power of a child, the protrusion 22 cannot be pushed in so that the angle of the plug blades 11a, 11b can be inserted into the outlet socket. For this reason, the plug 110 is not inserted into the outlet socket.

  Further, as in the first embodiment, this embodiment is also a modification, and an existing plug can be used as an insertion plug of the present modification in which the same effect as the present embodiment can be obtained. Can be considered. The specific method of realization is the same as in the first embodiment.

  Further, as in the first embodiment, a method of electrically controlling the angle of the plug blade is also conceivable as a modification. The specific method of realization is the same as that of the first embodiment except that the control of the position of the plug blade is replaced with the control of the angle of the plug blade. As an example, this modification can be realized by employing a stepping motor for the rotating portion.

[Third Embodiment]
Next, a third embodiment of the present invention will be described in detail with reference to the drawings. Hereinafter, the description overlapping with the above description is omitted as long as the description of the present embodiment is not obscured.

  FIG. 9 is a block diagram showing a functional configuration of the insertion plug 120 according to the third embodiment of the present invention. Referring to FIG. 9, the plug 120 includes plug blades 11 a and 11 b and a plug state changing unit 31.

  The plug state changing unit 31 changes the relative positional relationship between the plug blades 11a and 11b based on external factors. In the first embodiment and the second embodiment, pressing of the protrusion corresponds to an external factor. In a modification in which the position and angle of the plug blade are electrically controlled, sensor authentication corresponds to an external factor. When pressing of the protrusion or authentication of the sensor is completed, the plug state changing unit 31 changes the relative positional relationship between the plug blades 11a and 11b so that the plug outlet changes from the state where it cannot be inserted into the outlet outlet. Change to a state where it can be plugged in. In the first embodiment and the second embodiment, the protruding portion or the rotating portion corresponds to this function. Further, when the protrusion is not pressed or the sensor authentication is not completed, the plug state changing unit 31 always keeps the state of the plug blades 11a and 11b in a state where the plug blades 11a and 11b cannot be inserted into the outlet socket. In the first and second embodiments, the spring corresponds to this function. Further, when the protrusion is not pressed for a predetermined time or when the sensor authentication is not performed for a predetermined time, the plug state changing unit 31 always keeps the state of the plug blades 11a and 11b in a state where the plug blades 11a and 11b cannot be inserted into the outlet socket. It may be left. Moreover, the state which cannot be inserted in an outlet socket is the case where the distance between each of a pair of plug blades changes like 1st Embodiment, or each of a pair of plug blades like 2nd Embodiment. This is not limited to the case where the angle changes. For example, the plug blade may be housed in the housing and not inserted into the outlet socket. A state in which the length of the stopper blade in the short direction, that is, the length in the z-axis direction in the first embodiment may be increased. In addition, the thickness of the plug blade in the x-axis direction may be increased. Any state may be used as long as the plug blade cannot be inserted into the outlet socket.

  Next, effects of the third exemplary embodiment of the present invention will be described.

  The plug outlet 120 in the present embodiment described above can use an existing outlet plug as it is, and can prevent an accident that an unintended user inserts the plug into the outlet.

  This is because the following configuration is included. That is, first, the plug state changing unit 31 has a plug blade 11a when there is an external factor, for example, when the pressing of the protruding portion or sensor authentication is completed, that is, when the insertion plug 120 is intentionally inserted. , 11b is changed to change from a state where it cannot be inserted into the outlet socket to a state where it can be inserted into the outlet outlet. Secondly, the present embodiment is a technique related to an insertion plug, and the outlet insertion port does not require any modification.

  As a result, the plug 120 can be inserted only by a user who intends to insert the plug, so that the existing outlet can be used as it is, and an unintended user plugs the plug into the outlet. The effect of preventing accidents is obtained.

  Although the present invention has been described with reference to each embodiment, the present invention is not limited to the above embodiment. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

11a, 11b Plug blade 12a, 12b, 22 Protruding part 13a, 13b, 23 Spring 14, 24 Case 15 Power cable 16 Second outlet socket 19 Existing plug 27a, 27b Rotating part 28 Rack part 30 Variable Plug unit 31 Plug state control unit 100, 101, 110, 120 Plug 102 Device 141, 142, 241 Inner wall

Claims (6)

When the authentication process using the built-in sensor is completed , the relative positional relationship between the pair of plug blades is changed from the state that cannot be inserted into the pair of plug blades and the outlet socket, and then inserted into the outlet socket. A plug status change unit for changing to a status
Including plug.   2. The plug according to claim 1, wherein the plug state changing unit changes the distance between each of the pair of plug blades and takes two states, a state in which the plug state changing unit can be inserted into the outlet insertion port and a state in which the plug state changing unit is not inserted.   2. The plug according to claim 1, wherein the plug state changing unit changes two angles of the pair of plug blades and takes two states, a state where the plug state changing unit is inserted into the outlet socket and a state where the plug state changing unit is not inserted. The plug plug according to any one of claims 1 to 3 , wherein the plug state changing unit changes a relative positional relationship between the pair of plug blades using a restoring force of a spring. The plug state change unit, attachment plug according to any one of claims 1 to 3 to change the electrical respective relative positions of the pair of plug pins. The plug according to any one of claims 1 to 5 , further comprising a plug socket, wherein a terminal inside the plug plug is electrically connected to the pair of plug blades. .

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