JP4844576B2 - Magnetic outlet adapter - Google Patents

Description

  The present invention relates to a magnetic outlet adapter that is interposed between an outlet and a plug that can be connected to the outlet, and enables the outlet and the plug to be magnetically connected.

  Conventionally, a magnet is used to prevent disconnection of the cord when an external force is applied to the cord of the plug or to prevent the electric device to which the cord is connected from falling over a general outlet. Magnetic outlets are used that allow the plug to be removed from the outlet with a weak pulling force, but such magnetic outlets have a special shape, unlike ordinary outlets. Construction was necessary. Therefore, in order to obtain the same function as a magnetic outlet without performing electrical work, a magnetic outlet adapter is provided that is interposed between the outlet and the plug so that they can be magnetically attached. It is disclosed in Document 1.

  This conventional example is composed of a first adapter half connected to an outlet provided on a wall surface, and a second adapter half connected to a plug connected to an external load. The first adapter half is provided with a body including a pair of plug blades that can be connected to an outlet port of an outlet provided on a wall surface on one side, and an insertion hole through which a pair of terminal pins are inserted on one side. And a cover having a terminal portion electrically connecting the terminal pin inserted through the insertion hole and the plug blade, and the second adapter half is formed of the pair of terminal pins on one side. And a plug body having a blade receiving portion electrically connectable to a terminal pin, the first adapter half and the second adapter half, Provided in the first adapter half It was coupled by magnetic attraction force acting between the magnet and the magnetically attracted pieces provided on the second adapter half.

Further, the first adapter half body is formed so that one surface of the body provided with the plug blade and one surface of the cover provided with the insertion hole are orthogonal to each other. Is connected to an outlet provided on the wall surface, the one surface of the cover faces the ground. Thus, the magnet type outlet adapter becomes compact as a whole, and the amount of protrusion from the wall surface can be suppressed. Furthermore, the container body of the first adapter half body is provided with a gripping portion having an uneven shape on both side surfaces orthogonal to the surface on which the plug blade is provided, and the gripping portion is gripped with fingers of a hand. It makes it easier to hold the body.
Japanese Patent Laying-Open No. 2005-243312

  By the way, the terminal part of the first adapter half is composed of a contact spring that elastically contacts with the terminal pin and can be bent in the insertion direction of the terminal pin. For this reason, when connecting a cover to a body, it is necessary to assemble along the insertion direction of a terminal pin so that a cover may not touch and deform | transform. However, in the above-described conventional example, the gripping part interferes, so that it cannot be assembled along the insertion direction of the terminal pin, and the cover touches the contact spring because it must be coupled to the body from the other direction. The contact spring may be deformed.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a magnet type outlet adapter that can be safely assembled without deforming a contact spring when a body and a cover are coupled. .

  In order to achieve the above object, the invention of claim 1 has a box-like shape in which a pair of plug blades that can be inserted into and removed from an existing outlet are provided on one side and have terminal portions that are electrically connected to the plug blades. A first adapter half comprising a body and a box-like cover through which a through hole through which a pair of terminal pins are inserted is formed on one side, and a terminal of the body via the through hole of the cover A pair of terminal pins that can be electrically connected to the terminal, and a container that houses a blade receiving portion that receives the plug stopper blade provided on the plug that is electrically connected to the terminal pin and can be inserted into and removed from the outlet. Between the magnet provided on one of the first adapter half and the second adapter half, and a magnetized piece made of a magnetic material provided on the other Second adapter half by the magnetic force acting on Is a magnetic outlet adapter that is detachably coupled to the first adapter half, and the terminal portion is composed of a contact spring that elastically contacts with the terminal pin and is flexible in the insertion direction of the terminal pin. Gripping portions each having a concavo-convex shape projecting toward the cover side from the joint surface of the body and the cover are provided on both side surfaces orthogonal to the one surface, and the cover includes a normal direction of the one surface and a plug blade insertion / extraction direction. It is characterized in that the angle formed is an obtuse angle and the direction parallel to the coupling surface of the body and the cover in the grip portion and the normal direction of the one surface of the cover coincide with each other.

  The invention of claim 2 is characterized in that, in the invention of claim 1, the one surface of the cover is provided with a guide wall that comes into contact with the peripheral edge of the container body of the second adapter half.

  The invention of claim 3 is characterized in that, in the invention of claim 2, the guide wall is formed to be inclined so as to expand in a direction opposite to the insertion direction of the terminal pin.

  According to a fourth aspect of the present invention, in the third aspect of the present invention, the guide wall is a portion excluding one side edge in the direction perpendicular to the insertion direction of the terminal pin out of the entire peripheral edge of the second adapter half body. It is characterized by being provided in.

  According to the first aspect of the present invention, the body and the cover can be assembled along the insertion direction of the terminal pin, that is, the bending direction of the contact spring. Therefore, when the body and the cover are joined, even if a part of the cover comes into contact with the contact spring, a load is applied to the contact spring only in the bending direction, so that the contact spring can be safely assembled without deformation. it can.

  According to the invention of claim 2, since the second adapter half can be guided to a position where the terminal pin can be inserted into the insertion hole by the guide wall, it is easy even if the insertion hole of the cover is not visible. The second adapter half can be connected to the first adapter half.

  According to the invention of claim 3, when the second adapter half is pulled out from the first adapter half, the second adapter half can be pulled out while being inclined with respect to the insertion direction of the terminal pin. Compared with the case where the second adapter half is pulled out along the insertion direction of the terminal pins, the force resisting the attractive force of the magnet can be reduced and can be pulled out easily.

  According to the invention of claim 4, the second adapter half can be easily connected to the first adapter half along the guide wall from a portion where the guide wall is not provided.

  Hereinafter, embodiments of a magnetic outlet adapter according to the present invention will be described with reference to the drawings. In the following description, the vertical direction in FIG. 1A is defined as the vertical direction. In this embodiment, as shown in FIGS. 1 and 2, a pair of plug blades 12 that can be inserted into and removed from an outlet (not shown) of an existing outlet (not shown) are provided on one surface of the wall and protruded. A box-shaped body 10 having a terminal portion 13 electrically connected to the blade 12 and a box-shaped cover 11 having through holes 14a and 19a through which a pair of terminal pins 20 are inserted are coupled to each other. A pair of terminal pins 20 that can be electrically connected to the terminal portion 13 of the body 10 through the insertion holes 14 a and 19 a of the cover 11, and the terminal pins 20. A second body 2 comprising a blade receiving portion (not shown) for receiving a plug plug blade (not shown) provided on a plug (not shown) which is electrically connected and can be inserted into and removed from the outlet. Adapter half B and the first adapter The second half A and the second half adapter B are magnets (not shown) provided in the first half adapter A and a magnetic body provided in the second half adapter B. It is detachably coupled by a magnetic adhesion force acting between the piece 21.

  As shown in FIG. 1 (a), the body 10 is formed in a box having an opening on one side, and an insertion hole (not shown) through which the plug blade 12 is inserted through the front surface portion 10a connected to the outlet. ing. In addition, on both side surfaces of the body 10 (the front side and the back side in FIG. 1A), the holding portions 10c that are recessed in a concave shape projecting closer to the cover 11 side than the coupling surfaces of the body 10 and the cover 11 respectively. Is provided. Thus, the body 1 is easily held by gripping the grip portion 10c with fingers of the hand.

  Inside the body 10, the middle body 18 of the box body from which the plug blade 12 is projected is housed in a form in which the plug blade 12 is inserted into the insertion hole. The middle body 18 is provided with the plug blade 12 at one end thereof and the terminal portion 13 at the other end thereof, and one surface of the other end portion facing the terminal pin 20 is the insertion direction of the terminal pin 20. It is designed to be parallel to an orthogonal plane. The terminal portion 13 includes a contact spring 13a that is elastically contacted with the terminal pin 20 and can be freely bent in the insertion direction of the terminal pin 20, and the distal end portion of the terminal pin 20 is elastically contacted with the contact spring 13a. The pin 20 is electrically connected.

  As shown in FIG. 1 (a), the cover 11 is formed from a box formed in a curved shape that curves from the front surface portion 11a coupled to the bottom surface portion 10b of the body 10 to the bottom surface portion 11b through which the terminal pins 20 are inserted. As shown in FIG. 2 (c), an insertion hole 19a through which the terminal pin 20 is inserted is provided on one surface, and the middle cover 19 that holds the magnet, and a position that closes and opens the insertion hole 14a. A door body 15 that is rotatable between and an insertion hole 14a that communicates with the insertion hole 19a is penetrated, and the middle frame 14 that holds the door body 15 is accommodated. Note that an opening 11c is provided on the bottom surface portion 11b of the cover 11 so that the one surface of the middle cover 19 faces the outside.

  The middle cover 19 is formed in a long flat plate shape, and as shown in FIG. 2B, a pair of substantially circular insertion holes 19a are provided in a substantially central portion in the longitudinal direction. Further, a magnet and a pair of yokes 16 for holding the magnet are held at both ends in the longitudinal direction. One end of each yoke 16 is exposed to the outside through two pairs of substantially rectangular through holes 19d penetrating at both ends in the longitudinal direction across the pair of insertion holes 19a. Thus, the first adapter half A and the second adapter half B are coupled by the magnetic force acting between the yoke 16 and the magnetic piece 21. In addition, a convex positioning convex portion 19b that protrudes in the normal direction of the bottom surface portion 19c is provided in a substantially central portion of the bottom surface portion 19c along the longitudinal direction of the bottom surface portion 19c.

  The middle frame 14 is formed in a long flat plate shape as shown in FIG. 2 (c), and a pair of substantially oval insertion holes 14a communicating with the insertion holes 19a of the middle cover 19 are provided through the longitudinal direction. Has been. The middle frame 14 sandwiches and holds the door body 15 between the middle cover 19. The middle frame 14 is provided with a spring member (not shown) that biases the door body 15 so that the door body 15 closes the insertion hole 19a when the terminal pin 20 is not inserted into the insertion hole 19a. It has been. The door body 15 is pressed and rotated by the tip of the terminal pin 20 inserted into the insertion hole 19a to open the insertion hole 19a. In addition, since the above door bodies 15 are well-known, detailed description shall be abbreviate | omitted here.

  As shown in FIGS. 3A and 3B, the second adapter half B includes a pair of terminal pins 20, a pair of magnetized pieces 21, and a pair of blade receiving portions. It is prepared for the body 2. A pair of terminal pins 20 are juxtaposed along the short direction at a substantially central portion of the upper surface portion of the vessel body 2, and magnetized pieces 21 are arranged at both ends in the longitudinal direction of the upper surface portion. Has been. A pair of substantially arc-shaped plug blade insertion holes 2a through which plug plug blades of plugs provided in loads (not shown) of electrical equipment and the like can be inserted and removed are provided substantially at the center of the lower surface of the body 2. Has been. In addition, a concave positioning recess 2b that is recessed in the normal direction of the upper surface portion is provided along the longitudinal direction of the upper surface portion at a position sandwiched between the terminal pins 20 on the upper surface portion of the container body 2. The positioning of the first adapter half A and the second adapter half B can be performed by fitting the positioning protrusion 19b of the first adapter half A to 2b.

  Here, in this embodiment, as shown in FIGS. 1A and 1B, the container body 1 of the first adapter half A is arranged in the normal direction of the front surface portion 10 a of the body 10 and the bottom surface portion of the cover 11. The angle formed with the normal direction of 11b is formed to be an obtuse angle (here, approximately 30 degrees). That is, since the angle formed by the insertion / extraction direction of the plug blade 12 and the insertion / extraction direction of the terminal pin 20 is an obtuse angle, the amount of protrusion in the horizontal direction can be suppressed, and the insertion / extraction of the plug blade 12 as in the conventional example. The second adapter half B can be easily attached to and detached from the first adapter half A as compared with the case where the angle formed by the direction and the insertion / extraction direction of the terminal pin 20 is a right angle.

  Further, in the present embodiment, as shown in FIG. 1A, the direction parallel to the coupling surfaces a and b of the body 10 and the cover 11 in the gripping portion 10c coincides with the normal direction of the bottom surface portion 11b of the cover 11. Thus, the body 10 and the cover 11 are joined together. For this reason, when connecting the body 10 and the cover 11, it can assemble along the insertion direction of the terminal pin 20, ie, the bending direction of the contact spring 13a. Accordingly, when the body 10 and the cover 11 are coupled, even if a part of the cover 11 comes into contact with the contact spring 13a, the contact spring 13a is loaded only in the bending direction, so that the contact spring 13a is deformed. And can be assembled safely.

  By the way, in the present embodiment, the angle formed between the normal direction of the front surface portion 10a of the body 10 and the normal direction of the bottom surface portion 11b of the cover 11 is an obtuse angle in the first adapter half A as described above. As shown in FIG. 4 (b), when the first adapter half A is connected to the outlet D provided at the lower position of the wall surface C, the top is looked down from above. Therefore, the connection between the first adapter half A and the second adapter half B cannot be visually recognized.

  Therefore, in this embodiment, as shown in FIG. 4A, the insertion direction of the terminal pin 20 out of the entire peripheral edge of the device body 2 of the second adapter half B at the end of the cover 11 on the bottom surface 19b side. Is provided with a guide wall 17 that comes into contact with a portion excluding one side edge (left side in the drawing) in a direction orthogonal to the direction. Therefore, when the second adapter half B is connected to the first adapter half A, the second adapter half is placed at a position where the terminal pin 20 can be inserted into the insertion holes 14a and 19a along the guide wall 17. Since B can be guided, the second adapter half B can be easily attached to and detached from the first adapter half A even when the insertion holes 14a and 19a are not visible.

  Moreover, since the taper 17a which inclines so that it may expand toward the direction opposite to the insertion direction of the terminal pin 20 is formed in the guide wall 17, the 2nd adapter half body B is separated from the 1st adapter half body A. When pulling out, the second adapter half B can be pulled out by being inclined with respect to the insertion direction of the terminal pin 20 by being along the taper 17a, so that the second adapter half B is inserted into the terminal pin 20. Compared with the case of pulling out along the direction, the force resisting the magnet's attractive force can be reduced and can be pulled out easily.

  Further, as described above, since the guide wall 17 that contacts the one side edge of the container body 2 of the second adapter half B is not provided, the second adapter can be started from the portion where the guide wall 17 is not provided. Half B can be easily connected to the first adapter half along guide wall 17.

  If the guide wall 17 is not provided as shown in FIG. 5C, the terminal pin 20 is inserted into the insertion hole 14a when the second adapter half B is connected to the first adapter half A. , 19a, it is difficult to position the second adapter half B at a position where it can be inserted.

  In addition, as shown to Fig.5 (a), you may provide the guide wall 17 which contact | abuts the said one side edge of the container 2 of the 2nd adapter half body B. As shown in FIG. In this case, it is desirable to provide the guide wall 17 so as not to protrude in the direction opposite to the insertion direction of the terminal pin 20. On the other hand, as shown in FIG. 5B, when the guide wall 17 is provided so as to protrude in a direction opposite to the insertion direction of the terminal pin 20, the second adapter half B is replaced with the first adapter half A. When connecting to the terminal wall 20, it is difficult to connect the terminal pin 20 to the guide wall 17, which is not desirable.

BRIEF DESCRIPTION OF THE DRAWINGS It is a side view which shows embodiment of the magnet type | mold outlet adapter which concerns on this invention, (a) is a figure of the state which the body and the cover have not couple | bonded, (b) is a figure of the state which the body and the cover couple | bonded. It is a figure which shows the 1st adapter half body same as the above, (a) is a perspective view, (b) is the top view seen from the penetration hole side, (c) is an AA 'line sectional arrow view. . It is a figure which shows the 2nd adapter half body same as the above, (a) is the perspective view seen from the terminal pin side, (b) is the perspective view seen from the other side of the terminal pin. It is explanatory drawing of a guide wall same as the above, (a) is a side view at the time of connecting a 2nd adapter half body to a 1st adapter half body, (b) connected the 1st adapter half body to the outlet. It is a perspective view at the time. (A)-(c) is a side view which shows the other structure of the guide wall same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 2 Body 10 Body 10c Holding part 11 Cover 12 Plug blade 13 Terminal part 13a Contact spring 14a, 19a Insertion hole 20 Terminal pin 21 Magnetic piece A 1st adapter half B 2nd adapter half

Claims (4)

  A box-shaped body having a terminal portion that is electrically connected to the plug blade and a pair of plug blades that can be inserted into and removed from an existing outlet on one surface, and an insertion hole through which a pair of terminal pins are inserted on one surface A first adapter half that is formed by connecting together a box-shaped cover through which is inserted, a pair of terminal pins that can be electrically connected to a terminal portion of the body through an insertion hole of the cover, and a terminal A second adapter half composed of a container housing a blade receiving portion for receiving a plug plug blade that is electrically connected to a pin and that can be inserted into and removed from the outlet. The second adapter half is caused by the magnetizing force acting between the magnet provided on one of the body and the second adapter half and the magnetized piece made of the magnetic material provided on the other. Removably coupled to the adapter half It is a gnet-type outlet adapter, and the terminal portion is composed of a contact spring that elastically contacts with the terminal pin and is flexible in the insertion direction of the terminal pin, and the body has a body and a cover on both side surfaces orthogonal to the one surface. A gripping portion having an uneven shape protruding from the coupling surface to the cover side is provided, and the cover has an obtuse angle between the normal direction of the one surface and the insertion / extraction direction of the plug blade, and the body and the cover in the gripping portion A magnet-type outlet adapter, characterized in that a direction parallel to the coupling surface and a normal direction of the one surface of the cover coincide with each other.   The magnet-type outlet adapter according to claim 1, wherein a guide wall that abuts the peripheral edge of the second adapter half is provided on the one surface of the cover.   The magnet-type outlet adapter according to claim 2, wherein the guide wall is formed to be inclined so as to expand in a direction opposite to the insertion direction of the terminal pin.   The said guide wall is provided in the site | part except the one side edge in the direction orthogonal to the insertion direction of a terminal pin among the whole periphery of the container body of a 2nd adapter half body. Magnetic outlet adapter.

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