KR101751505B1 - Safety Cover for Socket - Google Patents

Safety Cover for Socket Download PDF

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Publication number
KR101751505B1
KR101751505B1 KR1020150149010A KR20150149010A KR101751505B1 KR 101751505 B1 KR101751505 B1 KR 101751505B1 KR 1020150149010 A KR1020150149010 A KR 1020150149010A KR 20150149010 A KR20150149010 A KR 20150149010A KR 101751505 B1 KR101751505 B1 KR 101751505B1
Authority
KR
South Korea
Prior art keywords
plug
cover body
support block
fixing member
socket
Prior art date
Application number
KR1020150149010A
Other languages
Korean (ko)
Other versions
KR20170048670A (en
Inventor
남궁미옥
Original Assignee
주식회사 망고소프트랩
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 망고소프트랩 filed Critical 주식회사 망고소프트랩
Priority to KR1020150149010A priority Critical patent/KR101751505B1/en
Publication of KR20170048670A publication Critical patent/KR20170048670A/en
Application granted granted Critical
Publication of KR101751505B1 publication Critical patent/KR101751505B1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/44—Means for preventing access to live contacts
    • H01R13/443—Dummy plugs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/60—Means for supporting coupling part when not engaged
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/633—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only
    • H01R13/6335—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only comprising a handle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/76—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with sockets, clips or analogous contacts and secured to apparatus or structure, e.g. to a wall
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles

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  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The present invention relates to a safety cover for a console, and is capable of performing a basic safety function for preventing an electric shock accident, a fire accident, and the like by inserting the plug insertion slot into an unused plug insertion slot of the socket, The plug can be held in position fixed by the plug fixing member without being left in the free moving state by allowing the plug to be positionally fixed via the plug fixing member so that the plug can be returned to the outlet The present invention provides a safety cover for a console, which can be conveniently inserted into a receptacle without any inconvenience of finding or pulling out the plug from an indoors corner of a house or office.

Description

{Safety Cover for Socket}

The present invention relates to a safety cover for a console. And more particularly, to a plug socket which is inserted into an unused plug insertion hole of an outlet to block the plug insertion slot from the outside, thereby performing a basic safety function capable of preventing an electric shock accident, a fire accident, Since the unused plug is held in the position fixed by the plug fixing member without being left in the free moving state, when the plug is to be inserted into the outlet again and used later, The present invention relates to a safety cover for a console, which can be conveniently inserted into an outlet without using any inconvenience to be found or pulled out from an indoors corner of a house or an office.

In general, an outlet is a device for inserting a plug by connecting it to an indoor wiring of an electric appliance to supply electric power to the appliance. The outlet is a flush-type outlet installed on a floor or a wall of the building, And a multi-outlet that allows other electric appliances to be connected and used.

The plug socket has a plug insertion groove into which a plug body can be inserted, and a terminal insertion slot into which a plug terminal can be inserted is formed on a bottom surface of the plug insertion slot. The insertion path of the plug is guided by the plug inserting groove of the socket, and the plug terminal is inserted into the terminal inserting groove of the socket, so that the electric terminal inside the socket is connected and the current flows to the plug side.

These receptacles are generally formed in such a way that the plug inserting groove and the terminal inserting groove are always exposed to the outside, and since the terminal inserting groove has no protective equipment, curious young children can insert a conductor such as a chopstick into the terminal inserting groove In case of inserting, problems such as leading to electric shock accidents occurred.

In addition, when an electric appliance is used in a place where dust accumulates, electric sparks are splashed on the dust or electric power is transmitted to the dust, so that the dust is ignited to cause a fire. Since the terminal insertion groove of the outlet is always open, , It is a reality that dust may accumulate inside the outlet and risk exposure to dust due to dust.

To prevent such electric shock accidents and fire, a separate safety cover capable of blocking the terminal insertion groove or the plug insertion groove of the outlet has been developed and widely used.

The safety cover is formed in a block shape to be inserted into a plug insertion groove of an outlet or inserted into a plug insertion groove and formed into a plug terminal shape so as to be inserted into a terminal insertion groove formed on an inner surface of the plate- And the insertion protrusions are formed into a shape having various shapes.

However, when the safety cover according to the related art is intended to be used, it is inconvenient to remove the safety cover from the outlet. In addition, when the unused plug is unplugged from the outlet and the safety cover is inserted into the outlet, the plug is left in a free moving state without being fixed in position. Therefore, It is necessary not only to find the plug again at the corners of the house or the office but also to insert the plug back into the outlet because there is a problem that it causes considerable inconvenience in use.

Korean Patent No. 10-0653121

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the prior art, and an object of the present invention is to provide a plug socket which is inserted into an unused plug insertion hole of an outlet, In addition, since the plug can be fixed in position through the plug fixing member, the unused plug is held in the position fixed by the plug fixing member without being left in the free moving state , A safety cover for a console that allows the plug to be inserted back into the outlet without the inconvenience of locating or pulling out the plug from the indoors corner of the house or office when the plug is later inserted into the outlet .

Another object of the present invention is to provide a safety cover for a console which can conveniently pull the cover body out of the socket without a separate tool by performing the function of pulling out the cover body from the socket through the plug fixing member .

It is still another object of the present invention to provide a safety cover for a console which can stably maintain the mounting state of the plug even if the position of the plug is varied and arranged .

It is still another object of the present invention to provide a plug fixing member which is detachably attached to a cover body so that the plug fixing member projecting outward from the socket can be separated and removed according to the user's need, And to provide a safety cover for a cone set.

The present invention relates to a cover body which is formed so as to be inserted into a plug insertion groove of a socket-outlet; And a plug fixing member protrudingly mounted on an outer surface of the cover body so as to fix the plug in place.

At this time, the plug fixing member may be configured to perform a knob function to pull the cover body out of the plug insertion groove of the socket-outlet.

In addition, the plug fixing member may include a support block protruding outwardly from the cover body; And a retaining ring coupled to the support block and formed in a shape capable of fixing the plug.

In addition, the support block may be rotatably coupled to the cover body such that the direction of the engagement ring is adjusted.

In addition, the support block may be detachably coupled to the cover body.

In addition, the cover body may be provided with a coupling hole, and the supporting block may be provided with a coupling rod to be inserted into the coupling hole to be inserted into the coupling hole. At the end of the coupling rod, A hook protrusion engageable with the cover body may be formed to prevent detachment of the coupling rod.

Further, the cover body may be provided with an unlocking device capable of releasing the engaged state of the hook projection and the cover body.

Further, the unlocking device may include a movable bar linearly movably mounted on the cover body such that one end thereof can press the hook protrusion in a direction to disengage the hook protrusion; And an elastic spring for elastically supporting the movable bar so that the other end of the movable bar protrudes outside the cover body, and as the movable bar is elastically pressed, the hook protrusion is pressed to be disengaged from the cover body .

In addition, the retaining ring may be detachably coupled to the support block.

According to the present invention, it is possible to perform a basic safety function for preventing an electric shock accident, a fire accident, and the like by inserting the plug inserting groove into the unused plug inserting groove of the socket, The unused plug is held in the position fixed by the plug fixing member without being left in the free moving state. Therefore, when the plug is to be inserted into the outlet again and used later, There is an effect that the plug can be easily inserted into a receptacle without being inconvenient to find out or pull out the plug from an indoors corner of a house or an office.

Further, the cover body can be pulled out from the socket without a separate tool, by performing the pulling function of pulling the cover body out of the socket through the plug fixing member.

Further, the arrangement state of the plug fixing member can be adjusted in various manners, so that even if the positions of the plugs are varied and arranged, there is an effect that the stationary state of the plug can be stably maintained.

Further, the plug fixing member is detachably coupled to the cover body, so that the plug fixing member projecting outward from the socket can be separated and removed according to the user's need, such as changing the furniture arrangement of the house.

1 is a perspective view schematically showing a configuration of a safety cover for a receptacle according to an embodiment of the present invention,
2 and 3 are views schematically showing a use state of a safety cover for a receptacle according to an embodiment of the present invention,
FIG. 4 is a schematic view illustrating an internal connection structure of a safety cover for a receptacle according to an embodiment of the present invention; FIG.
5 is a view schematically showing a configuration of an unlocking device for a safety cover for a receptacle according to an embodiment of the present invention;
6 is a perspective view schematically showing a configuration of a safety cover for a receptacle according to another embodiment of the present invention,
7 is a view schematically showing the internal connection structure of the safety cover for a receptacle shown in Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 1 is a perspective view schematically showing the construction of a safety cover for a receptacle according to an embodiment of the present invention, and FIGS. 2 and 3 schematically show a use state of a safety cover for a receptacle according to an embodiment of the present invention. Fig.

The safety cover 20 for a receptacle according to an embodiment of the present invention is inserted into the plug insertion groove 11 of the receptacle 10 and is formed to be able to receive the plug 30. The cover 20 includes a cover body 100, And a plug fixing member (200).

The receptacle 10 is in contact with a plug 30 inserted therein and supplies power. Generally, a plug insertion groove 11 into which a body of the plug 30 is inserted is formed, A terminal insertion groove 12 into which the plug terminal 31 of the plug 30 is inserted is formed.

The cover body 100 is formed to be inserted into the plug insertion groove 11 of the receptacle 10 and is formed so as to block the plug insertion groove 11 from the outside in a state of being inserted into the plug insertion groove 11. [ The cover body 100 may be formed in a plate shape or in a block shape and the shape of the cover body 100 may be variously formed. The insertion protrusion 110 may be additionally formed in the terminal insertion groove 12 of the receptacle 10 in the process of being inserted into the terminal insertion groove 12 of the receptacle 10. The cover body 100 may be integrally formed with various cover bodies 100 through which the plug insertion grooves 11 of the receptacle 10 are shielded. Can be applied.

The plug fixing member 200 is protrudingly mounted on the outer surface of the cover body 100 and is formed so that the plug 30 can be fixed thereto. The plug 30 can be fixed in various ways, for example, in the form of a latching ring or in the form of an insertion groove, Or the like.

According to this structure, the safety cover 20 for the receptacle according to the embodiment of the present invention is inserted into the unused plug insertion groove 11 of the receptacle 10 to block the plug insertion recess 11 from the outside, It is possible to prevent an electric shock caused by mischief of children and to perform a basic safety function for preventing a fire accident due to dust and the like. In addition, the plug 30 can be positioned and fixed through the plug fixing member 200 The unused plug 30 is held in a state of being fixed to the safety cover 20 inserted into the socket 10 without being left in a free moving state so that the plug 30 can be returned to the outlet 10 When the plug 30 is to be inserted into the plug 10 and used, the plug 30 can be easily and conveniently inserted into or taken out from an indoors corner of the house or office, It can be used by inserting it into the socket outlet 10 again.

The plug fixing member 200 according to an embodiment of the present invention not only performs a function of simply fixing the plug 30 but also allows the cover body 100 to be inserted into the plug insertion groove 11 As shown in Fig. For example, the plug fixing member 200 may be formed so as to protrude from the outer surface of the cover body 100 and function as a handle by itself, or may be formed as a plug fixing member (Not shown).

The safety cover of the prior art which is generally used is configured in such a manner that a separate removal tool is used to pull out and separate the safety cover from the outlet or to provide a separate gripping tool applied to the safety cover, There has been a problem in that it is inconvenient for the removal operation of the drawer to the safety cover. However, in the safety cover 20 according to the embodiment of the present invention, the plug fixing member 200 protrudingly mounted on the outer surface of the cover body 100 is formed to fix the plug 30 to the cover body 30, The safety cover 20 can be easily detached from the receptacle 10 without a separate tool.

The plug fixing member 200 includes a support block 210 that is coupled to the cover body 100 so as to protrude outwardly and a support block 210 that is coupled to the support block 210 and includes a plug 30, And a latching ring 220 which is formed in a shape that can be fixed to the latching member 220. The latching ring 220 may be formed to be capable of fixing the cable portion or the head portion of the plug 30.

At this time, the support block 210 may be rotatably coupled to the cover body 100 so that the direction of the engagement ring 220 is adjusted. For example, the support block 210 may be coupled to the cover body 100 such that the support block 210 can rotate around a rotation center axis CL perpendicular to the surface of the cover body 100, The mounting direction of the latching ring 220 is adjusted according to the rotation of the latch 30, so that the stationary state of the plug 30 can be more stably maintained.

For example, as shown in FIG. 3A, the latching ring 220 may be arranged so as to fix the plug 30 in a state where the cable 32 of the plug 30 is positioned vertically downward And is arranged to be rotated in a clockwise direction at a predetermined angle from the state (a) so that the plug 30 can be fixed while the plug cable 32 is horizontally positioned as shown in FIG. 3 (b) It is possible. The adjustment of the position of the latching ring 220 can be performed by rotating the support block 210 around the rotation center axis CL and by adjusting the position of the latching ring 220, The latching ring 220 can stably fix the plug 30 even if the position of the plug 30 is varied and arranged.

Meanwhile, the support block 210 of the plug fixing member 200 may be detachably coupled to the cover body 100, and the configuration thereof will be described with reference to FIGS. 4 and 5. FIG.

FIG. 4 is a view schematically showing an internal connection structure of a safety cover for a receptacle according to an embodiment of the present invention, FIG. 5 is a perspective view illustrating a structure of an unlocking device for a safety cover for a receptacle according to an embodiment of the present invention. Fig.

The support block 210 of the plug fixing member 200 is not only rotatably coupled to the cover body 100 as described above but also detachably coupled to the cover body 100 as shown in FIGS. do.

As the support block 210 is detachably coupled to the cover body 100, the plug fixing member 200 to be protruded outwardly from the cover body 100 is separated from the cover body 100 according to the user's needs Can be removed. For example, when the safety cover 20 inserted into the receptacle 10 should not be protruded according to the necessity of furniture arrangement or the like in the house, the user does not need to pull out the safety cover 20 itself, Only the housing 200 is separated and removed, so that the outside projecting portion can be removed, and the furniture arrangement of the house can be performed smoothly.

A coupling hole 101 is formed in the cover body 100 and a coupling hole 101 is formed in the support block 210. The coupling hole 101 is formed in the cover body 100, And a coupling rod 211 to be fitted and inserted into the coupling rod 211 is formed. The hook protrusion 212 is engaged with the cover body 100 to prevent the coupling rod 211 from being detached when the coupling rod 211 is inserted into the coupling hole 101 at the end of the coupling rod 211 .

4 (a) and 4 (b), the coupling block 210 of the plug fixing member 200 has the coupling rod 211 inserted into the coupling hole 101 of the cover body 100 The hook protrusion 212 formed at the end of the coupling rod 211 is engaged with the cover body 100 so that the support block 210 can be engaged with the cover body 100. [ It is possible to prevent the body 100 from being separated and separated easily. In this case, the support block 210 may be configured to rotate the coupling rod 211 with the rotation center axis CL.

The cover body 100 may be provided with an unlocking device 300 that can release the engaged state of the hook protrusion 212 and the cover body 100.

5, the unlocking device 300 includes a movable bar 310 which is linearly movably mounted on the cover body 100 so that one end of the movable bar 310 can press the hook protrusion 212 in a direction to disengage the hook protrusion 212, And an elastic spring 320 elastically supporting the movable bar 310 such that the other end of the movable bar 310 protrudes from the cover body 100.

5 (a), the movable bar 310 is maintained in a protruded state to the outside of the cover body 100 by the elastic force of the elastic spring 320. In this state, When the user presses the movable bar 310 protruding outside the cover body 100, the movable bar 310 linearly moves and the hook protrusion 212 is pressed, The engagement between the hook protrusion 212 and the cover body 100 is released.

If the support block 210 is pulled out by pulling out the hook protrusion 212 and the cover body 100 in the state of releasing the engaged state of the hook protrusion 212 and the cover body 100, do.

When the hook protrusion 212 is engaged with the cover body 100 and the user pulls the support block 210 by pulling it without pressing the movable bar 310, The pulling force of the support block 210 is transmitted to the cover body 100 without the support block 210 being pulled out from the cover body 100 so that the cover body 100 is inserted into the plug insertion groove 11). In this way, the plug fixing member 200, and more particularly, the support block 210, performs a pulling-out function for the cover body 100.

6 is a perspective view schematically showing the configuration of a safety cover for a receptacle according to another embodiment of the present invention, and FIG. 7 is a view schematically showing an internal connection structure of the safety cover for a receptacle shown in FIG. 6 .

6 and 7 show another configuration of the plug fixing member 200, wherein the retaining ring 220 is detachably coupled in such a manner that the retaining ring 220 is slidably inserted into the support block 210. As shown in FIG. The support block 210 may be formed with a slide insertion groove 213 so that the retaining ring 220 can be inserted into the support block 210 in a sliding manner. Further, the shape of the latching ring 220 may be formed in a wide shape as shown in FIGS. 6 and 7, or may be formed in an elastically deformable shape, and the shape thereof may be variously changed.

The support block 210 is rotatably coupled to the cover body 100 and is detachably coupled to the cover body 100 in the same manner as described above. The configuration of the support block 210 is the same as that described with reference to FIGS. 1 to 5, The detailed description is omitted for duplication prevention.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10: Outlet 20: Safety cover
30: Plug 100: Cover body
101: coupling hole 200: plug fixing member
210: support block 211: coupling rod
212: hook projection 220:
300: unlocking device 310: movable bar
320: Elastic spring

Claims (9)

delete delete A cover body formed to be inserted into a plug insertion groove of a socket-outlet; And
And a plug fixing member which is formed to protrude from the outer side surface of the cover body so as to fix the plug and to perform a pull function for pulling the cover body from the plug insertion groove of the socket,
, Wherein the plug fixing member
A support block detachably coupled to the cover body so as to protrude outward; And
And a retaining ring coupled to the support block, the retaining ring being formed in a shape capable of fixing the plug,
A coupling hole is formed in the cover body,
The support block is formed with a coupling rod to be fitted and inserted into the coupling hole, and at the end of the coupling rod, the coupling rod is engaged with the cover body so as to prevent the coupling rod from being separated from the coupling hole, Hook projections are formed,
Wherein the cover body is equipped with an unlocking device capable of releasing engagement between the hook projection and the cover body,
The unlocking device
A movable bar linearly movably mounted on the cover body such that one end thereof can press the hook projection in a direction to disengage the hook projection; And
An elastic spring for elastically supporting the movable bar so that the other end of the movable bar protrudes outside the cover body;
Wherein the hook protrusion is pressed and disengaged from the cover body as the movable bar is elastically pressed.
The method of claim 3,
Wherein the support block is rotatably coupled to the cover body such that an arrangement direction of the engagement ring is adjusted.
delete delete delete delete The method of claim 3,
Wherein the retaining ring is detachably coupled to the support block.
KR1020150149010A 2015-10-26 2015-10-26 Safety Cover for Socket KR101751505B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150149010A KR101751505B1 (en) 2015-10-26 2015-10-26 Safety Cover for Socket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150149010A KR101751505B1 (en) 2015-10-26 2015-10-26 Safety Cover for Socket

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KR20170048670A KR20170048670A (en) 2017-05-10
KR101751505B1 true KR101751505B1 (en) 2017-06-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101917229B1 (en) 2018-02-28 2018-11-12 (주)혜광전기감리 Electric Wire Apparatus of Power Transmission And Distribution Line Change Possiblility

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11394152B2 (en) * 2020-03-06 2022-07-19 Rolls-Royce Corporation Electrical connector spacer system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3174779B2 (en) * 1996-08-22 2001-06-11 松下電器産業株式会社 Diffusion sound source vector generation apparatus and diffusion sound source vector generation method
CN202217863U (en) * 2011-06-03 2012-05-09 倪国森 Adhesion-type wire-hanging hook for wall socket

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3174779B2 (en) * 1996-08-22 2001-06-11 松下電器産業株式会社 Diffusion sound source vector generation apparatus and diffusion sound source vector generation method
CN202217863U (en) * 2011-06-03 2012-05-09 倪国森 Adhesion-type wire-hanging hook for wall socket

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101917229B1 (en) 2018-02-28 2018-11-12 (주)혜광전기감리 Electric Wire Apparatus of Power Transmission And Distribution Line Change Possiblility

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