JP2005235747A - Plug receptacle cover - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To cover the surface of a plug receptacle so as to enable insertion and pulling out of an inserting plug in order to prevent happening of a tracking phenomenon by dust and dirt adhering and depositing between the plug receptacle and the inserting plug plugged in there. <P>SOLUTION: A plug insertion and penetration port 62 which bends by the insertion action of an inserting plug B and has numerous contact pieces 63 is formed at the front part 61a with a prescribed spacing with the plug plugging-in ports P1, P2 of a cover 61 covering the exposed surface of an outlet A. When the inserting plug is plugged in the plug plugging-in port P1, P2 through the plug insertion and penetration port 62, the contact pieces 63 corresponding to the locations of the plug plugging-in ports P1, P2 and the shape and dimension of the inserting plug B are bent and let the inserting plug B pass and contact the side face of the plug inserted. The numerous contact pieces 63 can be formed in one body with the cover 61. Then, a common plug receptacle cover can be applied regardless of the number of the plugging-in ports, shape of pulling-off stopper, and type of grounding electrode attached or the like. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention covers the plug blade and the plug blade side of the plug when the plug socket such as an outlet, multi-tap, etc. is connected to the power distribution and the plug is not inserted and the plug is inserted. A plug that can prevent the occurrence of tracking phenomenon due to the dust-proof effect that prevents dust from accumulating between the plug receiver and the plug-in plug, and the waterproof effect that prevents water from entering the blade receiver. This is related to the receiving cover. As a general rule, terms used in this document are defined in Japanese Industrial Standards (JIS).

  Plug receptacles used for wiring connection by inserting an insertion plug exist as an embedded outlet embedded in a wall surface, an exposed outlet set exposed on the wall surface, a multi-tap such as a table tap, or the like. Since these are arranged in an environment that is not concealed so that the plug can be inserted and removed at any time, dust accumulates, and if it contains moisture, a tracking phenomenon may occur and a fire may occur. In order to prevent this, the best countermeasure is to periodically clean the plug and the plug receptacle. However, since the number of electric appliances that always insert plugs into plug receptacles is increasing, it is not possible to rely solely on cleaning. Moreover, it is difficult to clean the outlet in a position hidden by furniture or the like. In addition, outlets provided in places where water is used, such as kitchens, washrooms, and toilets, may be splashed with water, which increases the possibility of tracking and leakage. In addition, there is a risk that an infant may get an electric shock by inserting a metal object in the plug receptacle in a state where the plug is not inserted.

  In order to solve the above problems, it is preferable to cover the connecting portion between the plug and the plug receptacle, and the plug cover is configured as a plug cover that covers the plug blade portion on the plug plug side. Numerous proposals have been made for a plug receptacle that is configured as an outlet cover that covers the insertion port portion on the plug receiving side. Since the plug cover has a non-standardized outer shape and shape of the plug, if the plug cover that matches the outer shape and shape is not selectively used, an adverse effect can be obtained. Patent Document 1). The invention of the present application is similar to the outlet cover, and the following covers a few excerpts from those disclosed as many patent documents regarding the cover covering the plug receiving side.

(1) Instead of the outlet plate exposed to the outside of the embedded outlet, cut the plug according to the position and the number of the plug outlet on the covering plate that is covered on the plug outlet side of the outlet body. An outlet cover with a plug cover body that has a bar-shaped cutout that forms an opening to be inserted into the plug insertion slot and covers the front of the plug insertion slot. Then, an opening is formed from the cut-out portion according to the number, and a portion including the cord of the plug inserted into the plug insertion port is covered with a plug cover (see Patent Document 1).

(2) In place of the outlet plate of the embedded outlet, an outlet cover provided with an overhang covering the end face of the plug at the position corresponding to the plug outlet is attached to the outlet body. Since the forming part side is covered with the outlet cover, the structure is such that dust does not enter the plug blade part (see Patent Document 2).

(3) A box-shaped cover covering the surface of the outlet is attached to the outlet, and the cord of the insertion plug inserted into the plug insertion port is pulled out from the cord outlet provided in the cover. The cord outlet has a dustproof member, so that dust does not enter the cover, and dust does not accumulate in the plug and the plug insertion port (see Patent Document 3).

(4) The outlet cover attached to the outlet plate of the buried outlet is formed with an opening with a door on the front plate provided apart from the plug insertion port, and the door is opened and the plug insertion port is opened from the opening. Since the insertion plug is inserted into the plug, dust does not easily enter the plug insertion port, and is closed by the door when the outlet is not in use, so that dust can be prevented from entering and electric shock can be prevented (see Patent Document 4).

(5) Since the outlet plate of the embedded outlet is provided with a protruding outer portion that surrounds the plug insertion port, dust does not easily accumulate in the plug insertion port, and the plug insertion in the outer enclosure portion An insertion plug is inserted into the opening, and when a filling member or a close contact member is disposed in close contact with the insertion plug, the gap between the insertion plug and the plug insertion opening is sealed (see Patent Document 5).

(6) Cover the outlet with a cover made of soft resin so as not to contaminate the outlet when performing wall finishing work at a building site, and form a notch into which the plug blade of the plug can be inserted into the cover. It is also possible to use an outlet (see Patent Document 6).

(7) The plug outlet of the embedded outlet is located at a position deeper than the surface of the outlet plate, and the outlet plate is provided with a door that covers the plug insertion opening so that it can be opened and closed. The mouth is covered with a door, and in a state where the plug is inserted, the plug insertion port is in a deep position, so that the accumulation of dust is reduced (see Patent Document 7).

Japan Wiring Equipment Manufacturers Association Technical Report Established September 17, 2002 Survey Report on Overseas Made Taps and Tracking Prevention Products Japanese Unexamined Patent Publication No. 2000-1000051 (pages 3-7, FIG. 1) Japanese Patent Laid-Open No. 08-308061 (pages 2 and 3, FIG. 1) Japanese Patent Laid-Open No. 08-315898 (pages 2 and 3, FIG. 1) Registered Utility Model No. 3036124 (pages 2-9, FIG. 1) Japanese Unexamined Patent Publication No. 09-129298 (pages 2-9, FIG. 1) Japanese Utility Model Publication No. 04-41695 (pages 1 to 3, FIG. 1) JP 58-115781 (pages 1 and 2, FIG. 3)

  When configuring a plug receiving cover that covers the plug receptacle such as an outlet so that dust and water do not enter the plug receptacle, if the target receptacle is an embedded outlet, it is inserted into the plug receptacle. In addition to what was disclosed as Patent Document 3 (described in Prior Art 3), several prior arts have been disclosed for the configuration in which the cord portion of the inserted plug is covered. Such a configuration is effective for dustproofing and waterproofing, but has a problem in that the amount of protrusion from the wall surface becomes large, obstructing traffic, and restricting the location of furniture and electrical products.

  In addition, since the plug is not standardized except for the plug blade portion, there are various dimensional shapes, and some cords are pulled out from the side surface. Therefore, in the configurations disclosed in Patent Document 2 (described in Prior Art 2) and Patent Document 7 (described in Prior Art 7) in which a recess is formed so as to surround the plug, corresponding to the plug, the plug is inserted. Cannot be inserted, or the surrounding space becomes large and the effect of preventing the intrusion of dust is reduced.

  Moreover, although the structure described in Patent Document 1 (described in Prior Art 1) is excellent in versatility because the opening is formed according to the number and shape of the plug insertion port provided in the outlet, it is made of resin. It can be imagined that the work of cutting the plate is not easy, and forcing the user to do so is not preferable in order to prevent the occurrence of a tracking phenomenon or the like due to the spread of this. In addition, since the outlet is covered with a cover body with a small depth, it cannot be used for the majority of plugs with cords drawn out in the direction of the plug blade. It is necessary to replace the plug with a plug called a corner cap whose cord pulling direction differs by 90 degrees with respect to the direction.

  In addition, as in the configurations of Patent Document 4 (described in Prior Art 4) and Patent Document 7 (described in Prior Art 7), the structure in which the plug insertion port surface of the outlet is covered with a door is in an unused state. Although it is effective in preventing dust intrusion or insertion into a metal object due to an infant's mischief, there is a problem that the effect of preventing dust intrusion is reduced when using an outlet with an insertion plug inserted. As described above, since the size and shape of the plug are various, there are plugs that cannot be plugged in, and there is a gap around the plug and the function of preventing dust from entering is impaired. . Moreover, the structure which provided the door in the plug insertion port unit described in patent document 4 needs the operation | movement which opens a door with one hand and inserts an insertion plug with the other hand.

  In addition, the configuration disclosed in Patent Document 5 (described in Prior Art 5) uses an outlet plate with an outer peripheral portion around the plug insertion port, so when installing an embedded outlet or replacing the outlet plate There is a need to. Moreover, it is necessary to arrange | position a filling member or a sealing member between an insertion plug and an outer enclosure part, and there exists a subject which the insertion / removal of an insertion plug becomes troublesome.

  In addition, the configuration disclosed in Patent Document 6 (described in Prior Art 6) is not suitable for permanent use because it is an outlet cover as temporary at a construction site. The structure that covers and prevents the adhesion of paint or the like is taken up as being effective in preventing the intrusion of dust.

  In addition, there are various types of outlets and positions of plug outlets, and there are also types such as retaining types and with grounding poles. To correspond to each type, it is necessary to set an outlet cover for each type of outlet. is there. Although the prior art that can cope with this problem is disclosed in Patent Document 1 (described in Prior Art 1), as described above, the number and position of the plug insertion port of the outlet to be mounted. Accordingly, there is a problem that the work of cutting out the resin plate is required and the work is not easy.

  The present invention was devised in view of the above-described problems of the prior art, and the object of the present invention is to cover the surface of the plug receptacle with or without the insertion plug so that dust and moisture can enter. It is to provide a plug receiving cover to prevent.

  In order to achieve the above object, a plug receiving cover according to the present invention is formed with a cover body that covers the surface of the plug receiving body at a predetermined interval from a plug insertion opening in which a blade receiving hole is formed. A plug insertion port is formed in the front portion facing the plug insertion port, which is opened by the insertion operation of the insertion plug to allow the insertion plug to pass therethrough and is formed with a contact piece that contacts the side surface of the insertion plug. It is characterized by that.

  According to the above configuration, since the plug receiver is covered with the cover body when the insertion plug is not inserted, dust and moisture can be prevented from adhering to the plug holder, and an infant can put a metal object into the plug insertion slot. It is possible to prevent accidents that cause electric shock when plugged in. When the insertion plug is inserted into the plug receptacle covered with the cover body, the plug insertion port is opened by the pushing force of the insertion plug, and the insertion plug is passed through, and the plug insertion port is inserted. The abutting piece comes into contact with the side surface of the plug and prevents dust and moisture from entering the cover body.

  In the plug insertion port in the above configuration, the contact piece that is separated by one or more cutting lines at the position facing the blade receiving hole in the front portion of the cover body is bent from the hinge line by the insertion operation of the insertion plug. When the cover body is formed with a cutting line and a hinge line at the time of resin molding of the cover body, the insertion opening can be easily formed in the cover body.

  In addition, the plug insertion port is fitted with a contact piece forming body in which a contact piece made of a soft material is fixed to the opening formed at a position facing the blade receiving hole in the front portion of the cover body. Thus, when the insertion plug is inserted through the cover body through the opening, the plug insertion port equipped with the contact piece forming body formed of a soft material is connected to the inserted plug. The insertion piece is allowed to be inserted by deformation of the contact piece corresponding to the shape, and the contact piece comes into contact with the side surface of the insertion plug, so that the gap caused by the insertion of the insertion plug is closed and dust or moisture enters the cover body. Can be effectively prevented. In addition, even when the plug insertion port is a retaining type, the abutment piece flexibly follows the insertion of the insertion plug from an oblique direction and the rotation of the insertion plug to the retaining position. It can abut against the side surface of the plug to prevent dust from entering.

  In addition, the plug insertion opening is formed with a contact piece in which a slit that allows the insertion plug to pass through a sheet made of a soft material is formed in an opening formed at a position facing the blade receiving hole in the front portion of the cover body. When the insertion plug is pushed into the slit by configuring the body, the sheet formed of the soft material opens from the slit and passes through the insertion plug, and the side surface of the insertion plug inserted into the blade receiving hole Since the sheet opened from the slit comes into contact with the cover, entry of dust and moisture into the cover body can be effectively suppressed.

  In addition, the plug insertion hole is formed in the opening formed at the position facing the blade receiving hole in the front part of the cover body, through a plug hole that allows the insertion plug to pass through the sheet made of rubber material. By mounting the contact piece forming body, the plug through hole of the sheet made of rubber material expands corresponding to the outer shape of the plug plug when the plug is pushed into the plug through hole. Then, since the sheet opened from the plug through hole is in close contact with the side surface of the insertion plug inserted into the blade receiving hole through the insertion plug, it is possible to prevent dust and moisture from entering the cover body.

  The above-mentioned contact piece forming body is also attached to a retaining-type insertion plug that prevents the insertion plug from coming out by rotating the inserted insertion plug to the retaining position by being rotatably attached to the opening. A corresponding plug receiving cover can be configured.

  In addition, the contact piece forming body can be moved to the opening even when the number, position and structure of the plug insertion port provided in the outlet are different. Therefore, the required contact piece forming body can be accommodated by moving it to a position corresponding to the plug insertion port.

  In addition, the plug insertion port can move the position of a plurality of contact piece forming bodies provided with a contact piece having flexibility at the opening formed in the portion facing the plug insertion port on the front surface of the cover body. Even if there is a difference in the number and position of plug insertion holes provided in the plug receptacle or the shape and dimensions of the insertion plug, the amount of deflection of the contact piece and the position of the contact piece forming body It can be handled by movement, and can be handled by one plug receiving cover regardless of the type of plug receiving.

  In addition, the plug insertion opening has a sheet formed of a flexible material in an opening formed at a portion facing the blade receiving hole in the front portion of the cover body, and is divided into a large number of divided lines by arranging a number of cutting lines. A plug insertion port provided in an outlet or the like by installing a contact piece forming body that is divided into contact pieces and that forms one transverse cut line that intersects perpendicularly to a number of cut lines. Since the contact piece forming body is divided into a large number even if the number and position of the plugs are different, a plurality of divided contact pieces at positions corresponding to the plug insertion openings are formed by inserting the insertion plug into the blade receiving hole. The divided contact piece that has been pressed opens from the transverse cutting line in the pressing direction to allow the insertion plug to enter and contacts the side surface of the insertion plug inserted into the blade receiving hole.

  In addition, the plug insertion port is divided into a large number of divided contact pieces by arranging a large number of cutting lines in a portion facing the blade receiving hole in the front portion of the cover body, and intersects with the large number of cutting lines. By forming and forming one transverse cutting line, the abutting piece can be formed integrally with the cover body, and flexibility is given to the abutting piece divided and formed in a small width. Since the contact piece forming body is divided into a large number even if the number and position of the plug insertion port provided on the outlet etc. are different, it corresponds to the plug insertion port by inserting the insertion plug into the blade receiving hole. A plurality of divided contact pieces at a position are pressed and opened from the transverse cutting line in the pressing direction to allow the insertion plug to enter and contact the side surface of the insertion plug inserted into the blade receiving hole.

  When the contact piece is divided into a large number as described above, the contact piece is formed in an arc shape bulging outward, or by forming a curved surface inward at the tip of the contact piece, It is possible to prevent the contact piece pressed by the insertion plug from being bent and the tip portion from being sandwiched between the insertion plug and the plug insertion port.

  In addition, by forming an uncut portion with a very small width between adjacent contact pieces, in a state where the insertion plug is not inserted into the blade receiving hole, the divided contact pieces are not cut between adjacent portions. When the plug is inserted into the blade receiving hole, the split contact piece that has been pressed by the plug is cut off from the uncut portion. This does not hinder the insertion operation.

  In addition, by attaching the cover body to the plug holder detachably, the plug holder cover can be easily removed from the plug holder when cleaning the plug holder, such as a vacuum cleaner, rice cooker, iron, etc. For plug receptacles installed in places where plugs are to be inserted into the plug receptacle every time they are used, remove the plug receptacle cover and attach it when it becomes necessary to rearrange electrical equipment. It can also correspond to the usage method.

  The distance between the front part of the cover body and the plug insertion surface is the direction in which the plug blade movable plug formed so that the plug blade portion can rotate or the direction of the plug blade and the direction in which the cord is drawn out intersect. It is preferable to form the corner plugs at a distance that can be accommodated in the thickness direction, and the plug blade movable type plug or the corner plug can be accommodated in the cover body and only the cord can be pulled out. It is possible to prevent dust from accumulating on the plug blade portion.

  The plug receptacle to which the plug receptacle cover according to each of the above configurations is applied may be in the form of an embedded outlet, an exposed outlet, or a table tap, depending on the type and number of plug outlets. The surface can be covered to prevent entry of dust and moisture.

  With the increasing number of electrical devices that maintain the state where the plugs are inserted into plug receptacles such as outlets over a long period of time, the number of electrical devices used in places where water is used such as kitchens, washrooms, toilets, etc. In this case, dust is likely to accumulate between the plug and the plug holder, and there is a risk that scattered water may enter, and it is also difficult to clean. There is a demand for measures to prevent this, and this requirement can be satisfied by the plug receiving cover according to the present invention. In addition, even when the plug receptacle is not in use, it can be covered with the plug receptacle cover, so that dust and water can be prevented from entering the plug insertion slot. Since the insertion plug can be inserted and removed, the plug receiver and the insertion plug can be protected from dust and water regardless of the use state and the non-use state.

  FIG. 1 shows the configuration of the plug receiving cover 1 according to the first embodiment, corresponding to an embedded outlet (plug receiving) A provided with two ordinary plug insertion ports P1 and P2. The example formed is shown. The plug receiving cover 1 is formed with a cover body 11 having a size and shape that can cover the surface exposed from the wall surface of the embedded outlet A. A front portion 11a of the cover body 11 facing the plug insertion ports P1 and P2 Corresponding to each of the two plug insertion ports P1 and P2 provided in the embedded outlet A, the cutting wire 15 and the hinge wire 16 are provided to form two plug insertion ports 12.

  In a state where the plug is not inserted into the embedded outlet A, as shown in FIG. 2A, the cover body 11 covers the embedded outlet A so that dust does not enter the plug insertion ports P1 and P2. . When the insertion plug B is inserted into the plug insertion holes P1 and P2, as shown in FIGS. 2B and 2C, when the insertion plug B is inserted from the plug insertion hole 12, each of the parts separated by the cutting line 15 is separated. Since the contact pieces 17a to 17d are bent inward from the hinge line 16, the plug B can insert the plug blade into the plug insertion ports P1 and P2.

  The cover body 11 is preferably formed of a transparent resin, and in this configuration, it is preferable to form the cover body 11 by polypropylene resin molding. Polypropylene is inferior to polyethylene, polystyrene, etc. in terms of transparency, but can fully see through the plug outlets P1, P2 formed in the embedded outlet A covered with the plug receiving cover 1. The plug B does not become an obstacle when inserting and removing the plug B, and not only has excellent mechanical strength, but also the hinge wire 16 can be easily formed by the hinge effect, so that the plug receiving cover 1 according to the present embodiment is configured. Therefore, it becomes a suitable forming material. That is, the plug receiving cover 1 can be formed simply by providing the cover body 11 with the cutting line 15 and the hinge line 16 on the front face portion 11a and molding the cover body 11 into a single molded body.

  The plug receiving cover 1 is attached to the embedded outlet A in the case of an embedded outlet configured by providing a plug receiving cover mounting portion assuming that the plug receiving cover 1 is attached, and the embedded outlet A is plugged. It is necessary to consider the case where a mounting tool for mounting the receiving cover 1 is attached. Although the plug receiving cover 1 can be fixed to the cover plate a of the embedded outlet A with an adhesive tape, it is desirable that the plug receiving cover 1 can be detachably attached to the embedded outlet A. .

  FIG. 1 shows an example in which a mounting tool 30 formed of a thin metal plate is attached to the embedded outlet A. As shown in the figure, when the embedded outlet A is installed, the mounting tool 30 is attached simultaneously with the mounting of the plate frame b, or the plate frame b of the existing embedded outlet A is once removed and the mounting tool 30 is sandwiched between the plate frame b. Reinstall. When the plug receiving cover 1 is pressed against the embedded outlet A to which the mounting tool 30 is attached, the left and right side surfaces of the cover body 11 in contact with the locking pieces 30a provided on the mounting tool 30 are elastically deformed, and the flange portion 11b is While passing through the front end portion of the locking piece 30a, both the left and right side surfaces are elastically restored, and the flange portion 11b is inserted into the recess of the locking piece 30a. As shown in FIG. The plug receiving cover 1 is held in a state where it is attached to the embedded outlet A by pressing the portion 11b. When the plug receiving cover 1 is detached from the embedded outlet A, when the left and right side surfaces of the plug receiving cover 1 are pressed inward, the engagement of the flange portion 11b with the locking piece 30a is released. Can be removed.

  Further, the embedded outlet A has a structure in which the locking piece 30a is integrally formed on the plate frame b, so that when the embedded outlet A is newly installed or the plate frame b of the existing embedded outlet A is replaced. Thus, the plug receiving cover 1 can be detachably provided.

  Moreover, as shown in FIG. 3, it can also comprise so that it may stick to the cover plate a of the embedded outlet A with the double-sided tape 20, and the mounting tool 40 may be attached. In this mounting tool 40, it is not necessary to remove the plate frame b of the embedded outlet A. Therefore, it is easy to attach the mounting tool 40 to the existing embedded outlet A, and the plug receiving cover 1 is easily mounted. be able to.

  FIG. 4 shows a state where the insertion plug B is inserted into the plug insertion port P1 of the embedded outlet A to which the plug receiving cover 1 is attached, and the plug blade rotation type insertion plug C is inserted into the plug insertion port P2. Is. When the insertion plug B is inserted from the plug insertion port 12 of the plug receiving cover 1, the contact pieces 17a to 17d separated into four by the cutting line 15 in the plug insertion port 12 are bent from the hinge wire 16, and the embedded outlet The tip of the contact piece 17 is in contact with the body of the insertion plug B in which the plug blade is inserted into the blade receiving hole of A. The contact pieces 17a to 17d have a gap between them adjacent to each other by bending from the hinge wire 16, but the amount of dust entering the cover body 11 through the gap is small, and the plug blade portion of the plug B The state in which dust accumulates between the blade receiving holes is greatly improved.

  In the above configuration, the separation distance between the plug insertion ports P1 and P2 of the embedded outlet A and the front portion 11a of the cover body 11 is such that when the contact pieces 17a to 17d are bent from the hinge wire 16, the tip ends thereof. As shown in FIG. 4, the plug blade movable insertion plug C covers the cover blade in a state where the plug blade portion is rotated by 90 degrees and inserted into the blade receiving hole. A distance that can be accommodated in the body 11 is preferable. The plug blade movable insertion plug C rotates the blade receiving part 90 degrees to reduce the amount of protrusion from the embedded outlet A, so the use of cords to which it is applied has increased. However, since there is a disadvantageous problem, covering the whole is a suitable dustproof measure. In order to allow the plug blade movable insertion plug C to be accommodated, it is necessary to form a cutout portion 11c for pulling out the cord to the outside on the lower surface of the cover body 11. Since the lower surface of the cover body 11 is not greatly involved in the dustproof function, even if the cord notch 11c is provided, the intrusion of dust will not be increased.

  The plug blade portion of the plug blade rotation type insertion plug C can be inserted into the plug insertion ports P1 and P2 from the plug insertion port 12 without being rotated. In the configuration of the embodiment, four contact pieces 17a to 17d are formed on the top, bottom, left and right, but the cutting line 15 is formed in an H shape to form two contact pieces on the top and bottom. You can also.

  Next, a plug receiving cover 2 according to a second embodiment of the present invention will be described with reference to FIG. In the present embodiment, the configuration of the plug insertion opening 22 is different from the configuration of the first embodiment, and common constituent elements are denoted by the same reference numerals and description thereof is omitted.

  In FIG. 5, a plug insertion port 22 is formed at a position corresponding to the plug insertion ports P <b> 1 and P <b> 2 of the embedded outlet A in the front portion 21 a of the cover body 21 constituting the plug receiving cover 2. Is attached with a contact piece forming body 23 so as to close it. As shown in an exploded view, the contact piece forming body 23 includes an upper and lower contact sheet 27 in which an H-shaped cutting line 26 is formed on a sheet of soft resin (low density polyethylene or the like), and an I-shaped cutting portion 28. The left and right contact sheets 22 are formed, and the upper and lower contact sheets 27 and the left and right contact sheets 29 are overlapped to be fixed to the cover body 21. A plurality of bosses 21 d formed around the plug insertion opening 22 of the cover body 21 are passed through mounting holes 24 formed in the upper and lower contact sheets 27, the left and right contact sheets 29, and the fixed frame 25, respectively. The left and right contact sheets 27 and 29 are fixed between the fixed frame 23 and the cover body 21 by being melted by heat at the tip of the boss 21d protruding in the periphery.

  When the plug receiving cover 2 having the above configuration is attached to the embedded outlet A and the plug B is inserted from the plug insertion port 22, the upper and lower contact pieces 27a and the left and right contact sheets of the upper and lower contact sheet 27, which are soft bodies, are provided. The left and right contact pieces 29a of 29 can be bent by being pushed by the insertion plug B, and can pass the insertion plug B toward the plug insertion ports P1 and P2. The distal end portion of the bent vertical contact piece 27a contacts the upper and lower sides of the insertion plug B, and the distal end portion of the left and right contact piece 29a contacts the left and right sides of the insertion plug B and contacts the inner side of the upper and lower contact piece 27a. Therefore, there are few gaps formed when the insertion plug B is inserted into the embedded outlet A, and the entry of dust from the plug insertion port 22 into the cover body 2 can be effectively suppressed.

  Note that the contact piece forming body 23 can be configured by only the upper and lower contact sheets 27 by omitting the left and right contact sheets 29, and the area of the gap through which dust enters the cover body 21 from the outside increases. Dust accumulation on the plug blade portion of the plug B can be prevented by the vertical contact sheet 27. Further, the mounting means for the embedded outlet A can be configured in the same manner as that shown in the first embodiment.

  Next, a plug receiving cover 3 according to a third embodiment of the present invention will be described with reference to FIGS. Components common to the configurations of the first and second embodiments are given the same reference numerals, and descriptions thereof are omitted.

  In FIG. 6, a plug insertion port 32 is formed at a position corresponding to the plug insertion ports P <b> 1 and P <b> 2 of the embedded outlet A in the front portion 31 a of the cover body 31 constituting the plug receiving cover 3. A contact piece forming body 37 is attached to 32. As shown in an exploded view, the contact piece forming body 37 has an opening 33 having an area smaller than the cross-sectional area of the body portion of the insertion plug B having a small outer dimension on a rubber sheet having elasticity and stretchability such as a thermoplastic elastomer. And a fixing frame 36 for fixing the rubber contact sheet 34 to the cover body 31. The rubber contact sheet 34 is attached to a plurality of bosses 31d formed in the periphery of the plug insertion opening 32 through the attachment holes 35, and a fixing frame 36 is disposed thereon to attach the fixing frame 36. The tip of the boss 31d protruding from the hole 35 is melted to be fixed to the plug insertion port 32.

  When the plug receiving cover 3 having the above configuration is attached to the embedded outlet A and the insertion plug B is inserted from the plug insertion port 32, the opening 33 is expanded and the rubber contact sheet 34 is extended in the insertion direction. As shown in FIG. 7, the periphery of the body portion of the plug B is wrapped and the plug B is passed through. Since the rubber contact sheet 34 is in close contact with the body of the insertion plug B, there is no gap when the insertion plug B is inserted into the embedded outlet A, and dust is introduced into the cover body 2 from the plug insertion opening 22. Does not invade.

  Instead of the rubber contact piece 34 in the above configuration, as shown in FIG. 8, a slit contact piece 38 having a slit 39 formed in a rubber sheet or a soft sheet may be attached. The slit 39 is formed to be sufficiently larger than the width of the insertion plug B, so that when the insertion plug B is inserted into the slit 39, the rubber or soft slit contact piece 38 becomes thicker than the insertion plug B. The plug B can be passed through the embedded outlet A, and the edge of the slit 39 of the slit contact piece 38 is in close contact with the plug B inserted into the plug insertion port P. Intrusion of dust into the cover body 31 is suppressed.

  Next, a plug receiving cover 4 according to a fourth embodiment of the present invention will be described with reference to FIGS. The plug receiving cover 4 according to the present embodiment is configured to be compatible with a retaining type embedded outlet.

  In FIG. 9, a plug insertion port 42 is formed at a position corresponding to the plug insertion ports P <b> 1 and P <b> 2 of the embedded outlet A in the front portion 41 a of the cover body 41 constituting the plug receiving cover 4. 42, a contact piece forming body 44 to which a contact sheet 46 is attached is rotatably mounted. The contact piece forming body 44 is formed by fixing a contact sheet 46, in which an H-shaped cutting line 45 is formed on a soft sheet, with fixing frames 47 from both sides of the contact sheet 46, as shown in FIG. Inside the insertion opening 42, the cover body 41 is rotatably held by a rotation holding frame 48.

  When the plug receiving cover 4 having the above configuration is attached to the embedded outlet A and the insertion plug B is inserted from the plug insertion opening 42, the contact sheet 46 opens from the cutting line 45 and allows the insertion plug B to pass through. The tip portions of the upper and lower contact pieces 46a and 46b of the opened contact sheet 46 are in contact with the top and bottom of the body of the insertion plug B, and when the insertion plug B is inserted into the embedded outlet A, Intrusion of dust into the cover body 2 is suppressed. According to this configuration, even if the embedded outlet A is configured as a retaining type, the contact piece forming body 44 is held rotatably with respect to the cover body 41, so It is possible to correspond to the operation of inserting B into the plug insertion port and rotating it to the retaining position.

  The contact piece forming body 44 of the plug receiving cover 4 is provided with a contact sheet 46 in which a cutting line 45 is formed on a soft sheet, but the rubber contact sheet 34 and the slit contact shown in the third embodiment. A contact piece 38 can also be attached.

  In addition, the plug receiving covers 1, 2, and 3 shown in the first to third embodiments basically have the plug B after the plug is installed in the embedded outlet A as shown in FIG. Although it is configured to be inserted, as shown in FIG. 11 (b), after inserting the plug insertion port 12, 22, 32 and inserting the insertion plug B into the plug insertion port, the cover bodies 11, 21 are arranged. 31 can be attached to the embedded outlet A. In this case, since the contact pieces 17a to 17d (the same applies to the contact sheets 27, 29, and 34) come out to the cord side, it is effective mainly to prevent water droplets from entering. However, when the plug B is extracted, it is necessary to remove the cover bodies 11, 22 and 32.

  By the way, as shown in FIG. 12, the plug outlet of the embedded outlet A is inserted into a general parallel two-pole plug blade even if it is limited to a rated voltage of 125 V and an allowable current of 15 A or less. Not only the normal type (a), but also a retaining type (b) that holds the insertion state of the insertion plug B by rotating the insertion plug B from the insertion position to the removal prevention position, and a three-terminal having a grounding plug blade Normal type (c) with grounding poles that can also be used with plugs (c), retaining type with grounding poles (d), and hook-type plug blades that can prevent removal of plugs with three terminals. It exists as a hook shape (e) or the like corresponding to the plug. Moreover, the number of plug insertion ports exists in the range of 1 to 3 for each shape, and the positions of the plug insertion ports are different. Furthermore, there are types such as the presence or absence of a ground terminal (f) for each shape and number. Accordingly, the plug receiving cover is required to correspond to the type of outlet, and the plug receiving covers 1, 2, 3, and 4 shown in the first to fourth embodiments described above correspond to the types of outlets. It is necessary to prepare things. Desirably, it is possible to support various types of outlets with one plug receiving cover. In the following, fifth and sixth embodiments of the plug receiving cover that can be applied even when the structure and number of plug insertion ports are different will be described.

  FIG. 13 shows the configuration of the plug receiving cover 5 according to the fifth embodiment. The plug insertion port 52 formed in the front part 51 a of the cover body 51 is inserted into the plug outlet A provided in the embedded outlet A. Four contact piece forming bodies 57 that can accommodate the maximum number (three) of the ports P1 to P3 are slidably mounted. As shown in FIG. 13B, the contact piece forming body 57 is provided on the left and right sides of the upper and lower contact pieces 58 and 58 formed thin and provided with flexibility and the plug insertion opening 52. A pair of left and right sliding pieces 59, 59 to be fitted into the formed sliding groove 56, and the sliding pieces 59, 59 are brought into contact with the sliding groove 56 from the inside of the cover body 51, thereby being brought into contact with each other. The pieces 58 and 58 are disposed in the plug insertion opening 52. When the four contact piece forming bodies 57 are attached to the cover body 51, the adjacent contact piece forming bodies 57 are in contact with each other at the tip of the contact piece 58, as shown in FIG. . When the plug receiving cover 5 is attached to the embedded outlet A, the surface of the embedded outlet A is covered, so that it is possible to prevent an infant from touching the plug insertion ports P1 to P3 and dust from being deposited. When the insertion plug B is inserted, when the insertion plug B is inserted from between the contact piece forming bodies 57 closest to the plug insertion ports P1 to P3, the contact piece 58 bends and allows the insertion plug B to pass through. The contact piece forming body 57 slides and moves in response to the insertion of the plug B at the positions of the plug insertion ports P1 to P3.

  The plug receiving cover 5 having the above-described configuration can correspond to all types of embedded outlets A shown in FIG. FIG. 14 (a) schematically shows a state in which the plugs B are inserted into all the plug insertion ports P1 to P3 of the normal type three-port embedded outlet A. The contact piece forming body 57 is shown in FIG. Since the contact piece 58 bends and contacts the side surface of the plug B, the accumulation of dust between the plug blade portion of the plug B and the plug insertion ports P1 to P3 is suppressed. FIG. 14B schematically shows a state in which the plug B is inserted only into the plug plug P2 at the center of the normal type single embedded socket A or the normal type three embedded outlet A. As shown, each contact piece forming body 57 abuts on the side surface of the insertion plug B without increasing the opening portion of the plug insertion opening 52 by bending the contact piece 58 substantially evenly. Accumulation of dust between the plug blade portion and the plug insertion ports P1 to P3 is suppressed. FIG. 14 (c) shows a state in which a relatively large insertion plug D such as an insertion plug D with a ground terminal or a round shape is inserted into a normal type with a grounding electrode or an unplugged outlet A with a grounding electrode and two retaining types. This corresponds to the plugs B and D whose shape dimensions are not constant. As shown in these examples, the plug receiving cover 5 can be used even when the plugs B and D have different shapes and the positions of the plug insertion ports P1 to P3 are different. . Further, since the contact piece forming body 57 freely moves, it is possible to cope with a retaining plug insertion port.

  If the number of plug outlets provided in the embedded outlet A is limited to two or less, the plug receptacle covers 1, 2, 3, 4 shown in the first to fourth embodiments are applied. By mounting the structure of the plug insertion port on the cover body so as to be movable, it is possible to cope with a change in the position of the plug insertion port.

  In the configuration of the plug receiving cover 5, the tip of the insertion plug B inserted into the embedded outlet A is covered with the cover body 51, so that dust accumulation is greatly suppressed. Since there are openings on both sides, it is inevitable that dust enters the cover body 51. A sixth embodiment that prevents dust from entering the cover body 51 from the plug insertion port 51 and can cope with various types of outlets will be described below.

  FIG. 15 shows the configuration of the plug receiving cover 6 according to the sixth embodiment. The plug insertion port 62 formed in the front portion 61a of the cover body 61 is connected to the plug insertion port 62 of the flexible sheet. An abutting piece forming body 64 in which a large number of abutting pieces 63 are formed in a row is mounted on a portion exposed to the front. The contact piece forming body 64 is obtained by dividing a plurality of exposed portions from the plug insertion port 62 of the flexible sheet into left and right by a large number of horizontal cutting lines 65 and one vertical cutting line (transverse cutting line) 66. The contact piece 63 is preferably formed to have a width of 1 to 5 mm.

  When the plug receiving cover 6 is attached to the embedded outlet A, when the plug B is not inserted into the embedded outlet A, as shown in FIG. Since it is blocked by the piece 63, dust does not enter the cover body 61, and it is possible to prevent dust from accumulating at the plug insertion ports P1, P2 of the buried outlet A that is not used. . When inserting the plug B into the plug insertion ports P1 and P2, as shown in FIG. 15B, if the plug B is inserted so as to press the contact piece 63, the plug B is pushed into the plug B. Since the plurality of contact pieces 63 are bent to allow the insertion plug B to enter, the insertion plug B can be inserted into the plug insertion port. The bent contact piece 63 is elastically contacted to the left and right side surfaces of the insertion plug B, and the contact piece 63 that has not been pressed closes the plug insertion port 62 above and below the inserted plug B. Even when the insertion plug B is inserted, the intrusion of dust into the cover body 61 is greatly suppressed, and the occurrence of a tracking phenomenon due to dust accumulated between the pair of plug blades of the insertion plug B can be prevented.

  FIG. 15 shows an example in which the plug receiving cover 6 is attached to the embedded outlet A provided with two ordinary plug insertion ports. However, even if the number of plug insertion ports is one, three Even in this case, the common plug receiving cover 6 can be applied irrespective of the number of the embedded outlets A because the contact plug 63 corresponding to the position of the plug insertion port is bent. . Further, even if the structure of the plug insertion port is a retaining type, the contact piece 63 pressed against the insertion plug B inserted obliquely bends and, after being inserted, the insertion plug B is prevented from being removed in the horizontal direction. Is turned to the state shown in FIG. Further, the outer shape of the plug B is not constant, and the plug B with a three-terminal with a ground electrode is particularly large. Since it bends in the position corresponding to a shape dimension, it can be made to respond | correspond to insertion of the insertion plug B of various shape dimensions. Therefore, the common plug receiving cover 6 can be applied regardless of the type of the embedded outlet A.

  The plug receiving cover 6 is provided with a flexible sheet in which a large number of contact pieces 63 are formed in a plug insertion opening 62 opened in the front portion 61a of the cover body 61. As shown in FIG. A large number of contact pieces 63 may be configured as a plug receiving cover 6a formed integrally when the cover body 61 is formed. The cover body 61 needs to have a required rigidity. However, since the contact piece 63 formed integrally with the cover body 61 is divided into a plurality of small widths, flexibility can be provided. For example, when the cover body 61 is resin-molded using polypropylene as a raw material, flexibility can be provided by appropriately selecting the width and thickness of one of the abutting pieces 63, as necessary. By providing the thinly formed hinge wire in an appropriate position, the bending position when the insertion plug B is inserted can be specified.

  In the plug receiving covers 6 and 6a, the contact pieces 63 adjacent to each other in the vertical and horizontal directions are not completely separated from each other, but are formed so as to be connected to each other by an uncut portion having a small width. The strength of the formed body 64 can be improved, and when pressed by the insertion plug B, the pressed contact piece 63 is cut off from the uncut portion, and the other portions are maintained in a flat state. Can do.

  Further, as shown in FIG. 17 as a cross-sectional view, the height H1 of the cover body 61 is unnecessarily protruded from the embedded outlet A so that the plug blade insertion plug C can be accommodated therein as described above. Preferably, the width W of the plug insertion port 62 in which the contact piece 63 is formed is formed so that the maximum width of the plug B can be passed with a margin. The length L of each contact piece 63 formed in this manner is longer than the distance H2 from the inner surface of the cover body 61 to the plug insertion port P of the embedded outlet A. Accordingly, when the insertion plug B is inserted into the plug insertion port P, the tip of the contact piece 63 is likely to be sandwiched between the insertion plug B and the plug insertion port P. There is a risk of insufficient insertion. In order to prevent the tip portion of the contact piece 63 from being sandwiched between the plug B and the plug insertion port P, the thickness of the contact piece 63 is changed from the connecting portion of the cover body 61 to the tip portion. It is preferable to form the film so as to be as thin as possible, and to mold the film so as to increase flexibility on the tip side. Further, as shown in FIG. 17A, it is preferable to provide a curved surface portion 63a that bends in an arc shape on the inner side at the tip end portion of the contact piece 63, and the contact piece 63 is pressed by the insertion plug B to the inner side. 17 (b), the abutting pieces 63 facing the sliding surface 63a of the embedded outlet A are curved outward as shown in FIG. 17B. It is possible to avoid a state in which the tip of the contact piece 63 is sandwiched between the insertion port.

  As shown in FIG. 17A, the curved surface portion 63a formed at the front end portion of the contact piece 63 becomes an undercut at the time of resin molding of the cover body 61, which complicates the molding die and leads to an increase in cost. As shown in FIGS. 17C and 17D, even if the contact piece 63 is formed in an arc shape that bulges outward, the contact piece 63 is inserted between the plug B and the plug insertion port P. It is possible to prevent the tip portion from being caught.

  In the configuration of the plug receiving covers 6 and 6a in which a large number of contact pieces 63 are formed in a row as described above, when the insertion plug B inserted into the plug insertion port P is extracted, a finger for grasping the insertion plug B Since the contact piece 63 is bent by the pressing, the insertion plug B can be grasped sufficiently, and damage to the insertion plug B caused by pulling out the insertion plug B by pulling the cord can be prevented. Therefore, even if the plug receiving covers 6 and 6a are attached to the embedded outlet A where the plug B is inserted and removed each time a vacuum cleaner or the like is used, the obstruction of the plug plug B is reduced.

  In addition, with the increase in the types and number of electrical appliances, plug-in type multi-tap is often inserted into the embedded outlet A, but connection of plug-in plug B via plug-in type multi-tap is not plugged in. This also increases the number of places where dust accumulates on the plug blade portion of the plug B and causes the tracking phenomenon. In order to provide a dustproof structure for the plug-in type multi-tap inserted into the plug socket A, the plug receiving cover 7 is covered with a shape and dimension including the plug-in type multi-tap M as shown in FIG. The body 71 can be formed. As shown in the drawing, in the case of a thin insertion type multi-tap M having a plug blade rotation type insertion blade, the difference inserted into the three plug insertion ports Pa, Pb, Pc provided on the insertion tap. The cover body 71 is formed to a size that can cover the plug blade side of the insertion plug B, and the insertion holes 72a, 72b, 72c of the insertion plug B are provided on the side surface of the cover body 71, thereby inserting the insertion type multi-tap M and It is possible to prevent dust from accumulating on the inserted plug B and to suppress the occurrence of the tracking phenomenon.

  In addition to power outlets, multimedia outlets that are integrated with TV outlets, telephone outlet modular outlets, LAN modular outlets, etc. are becoming increasingly popular. In this case, the cover body is formed so as to cover the entire outlet, and the plug insertion opening provided with the contact piece as shown in each of the embodiments described above is formed in the portion facing the power outlet. The same effect as the configuration can be obtained. A similar dustproof structure may be provided for the other outlet portion, but if the cover body is brought close to the outlet surface and an opening is formed in that portion, it will not hinder plugging / unplugging.

  The configuration of each of the embodiments described above is an example applied to the embedded outlet A. However, in the case of an exposed outlet or a table tap, the form of the wearing tool and the form of the cover body are changed in accordance with the shape of the wearing target. By doing so, it can be configured similarly.

  According to the plug receiving cover according to the present invention, the number and types of electrical products are increased, the electrical products that are always plugged in the outlet plugs are increased, water, paper powder, fiber powder in the kitchen and toilet, etc. Thus, it is possible to suppress the occurrence of a tracking phenomenon in which the occurrence frequency is likely to increase in the current electricity usage environment in which electric products are used even in places where the air scatters.

  The perspective view which shows the structure of the plug receiving cover which concerns on 1st Embodiment.   Sectional drawing which shows the state (a) which attached the plug receptacle cover to the embedded outlet, and the state (b) (c) which inserted the plug.   The perspective view which shows the embodiment of a mounting tool.   The perspective view which shows the state which inserted the plug and the plug blade rotation type plug in the embedded outlet.   The perspective view which shows the structure of the plug receiving cover which concerns on 2nd Embodiment.   The perspective view which shows the structure of the plug receiving cover which concerns on 3rd Embodiment.   The perspective view which shows the state which inserted the plug in the plug receiving cover same as the above.   The perspective view which shows the modification of the contact sheet in a structure same as the above.   The perspective view which shows the structure of the plug receiving cover which concerns on 4th Embodiment.   Sectional drawing which shows the structure of the contact piece formation body in a structure same as the above.   The schematic diagram explaining the state at the time of changing a mounting order.   Schematic which shows the kind of embedding outlet.   The perspective view which shows the structure of the plug receiving cover which concerns on 5th Embodiment.   The schematic diagram explaining the response | compatibility with respect to the position change of a plug socket or the kind of plug socket or plug.   The perspective view which shows the structure of the plug receiving cover which concerns on 6th Embodiment.   The perspective view which shows the structure of the plug receiving cover which formed many contact pieces integrally with the cover body.   Sectional drawing explaining the structure of a contact piece.   The perspective view which shows the structure of the plug receiving cover corresponding to insertion of an insertion type multi tap.

Explanation of symbols

1, 2, 3, 4, 5, 6, 6a, 7 Plug receiving cover 11, 21, 31, 41, 51, 61, 71 Cover body 12, 22, 32, 42, 52, 62 Plug insertion port 15, 26 Cutting line 16 Hinge line 17a, 17b, 17c, 17d, 58, 63 Contact piece 23, 37, 44, 57, 64 Contact piece forming body 30 Mounting tool 39 Slit 48 Rotation holding frame 56 Slide groove 59 Slide Piece 65 Horizontal cutting line (cutting line)
66 Longitudinal cutting line (transverse cutting line)
A Embedded outlet (plug receptacle)
B, C, D Plug plug P1, P2, P3 Plug socket

Claims (19)

  A cover body is formed to cover the surface of the plug receiver at a predetermined interval from the plug insertion opening in which the blade receiving hole is formed, and the blade of the insertion plug is formed on the front portion of the cover body facing the plug insertion opening. A plug receiving cover having a plug insertion opening formed with an abutting piece that is opened by inserting into the receiving hole to allow the insertion plug to pass therethrough and abuts against a side surface of the inserted plug. .   The plug insertion opening is formed so that a contact piece obtained by separating a part facing the blade receiving hole in the front part of the cover body into one or more by a cutting line is bent from the hinge line by the insertion operation of the insertion plug. The plug receiving cover according to claim 1.   The plug insertion opening is formed by mounting an abutment piece forming body in which an abutment piece made of a soft material is fixed to an opening formed in a portion facing the blade receiving hole in the front portion of the cover body. The plug receiving cover according to claim 1.   The plug insertion opening is fitted with a contact piece forming body that has a slit that allows the insertion plug to pass through a sheet made of a soft material at the opening formed in the part facing the blade receiving hole in the front part of the cover body. The plug receiving cover according to claim 1.   The plug insertion port is an abutment formed in the opening formed in the part facing the blade receiving hole in the front part of the cover body with a plug through hole that allows the insertion plug to pass through the sheet made of rubber material. The plug receiving cover according to claim 1, to which a piece forming body is attached.   The plug receiving cover according to any one of claims 3 to 5, wherein the contact piece forming body is rotatably attached to the opening.   The plug receiving cover according to any one of claims 3 to 5, wherein the contact piece forming body is attached to the opening so as to be movable.   The plug insertion port is mounted so that a plurality of contact piece forming bodies provided with flexible contact pieces can be moved in the opening formed in the part facing the plug insertion port on the front surface of the cover body. The plug receiving cover according to claim 1.   The plug insertion opening divides a large number of sheets formed of a flexible material into an opening formed at a portion facing the blade receiving hole in the front portion of the cover body by arranging a large number of cutting lines, and a large number The plug receiving cover according to claim 1, to which a contact piece forming body that forms one transverse cutting line that intersects perpendicularly to the cutting line is attached.   The plug insertion port is a single crossing that crosses a large number of strips divided by the formation of a large number of cutting lines in a portion facing the blade receiving hole in the front portion of the cover body, perpendicular to the large number of cutting lines. The plug receiving cover according to claim 1, wherein contact pieces that are equally divided by a cutting line are formed.   The plug receiving cover according to claim 9 or 10, wherein the contact piece is formed in an arc shape that bulges outward.   The plug receiving cover according to claim 9 or 10, wherein the tip of the abutting piece is bent.   The plug receiving cover according to claim 9 or 10, wherein an uncut portion having a minute width is formed between adjacent contact pieces.   The plug receiving cover according to claim 1, wherein the cover body is detachably attached to the plug receiving.   The separation distance between the front part of the cover body and the plug insertion surface is in the direction in which the plug blade movable type plug formed so that the plug blade portion can be rotated or the direction of the plug blade and the direction in which the cord is drawn out intersect. The plug receiving cover according to any one of claims 1 to 10, wherein corner plugs are formed at an interval that can be accommodated in the thickness direction.   The plug receiving cover according to any one of claims 1 to 10, wherein the cover body is formed in a size including an insertion type multi-tap inserted into the plug receiving.   The plug receptacle cover according to any one of claims 1 to 16, wherein the plug receptacle is an embedded outlet.   The plug receptacle cover according to any one of claims 1 to 16, wherein the plug receptacle is an exposed outlet.   The plug receiving cover according to any one of claims 1 to 16, wherein the plug receiving is a table tap.

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