JP2000340286A - Outlet with slip-off prevention - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize a conductive plug blade rest and a ground plug blade rest hole and improve the safety by rotatably attaching a plug insertion part constituting a covering body in an opening hole formed in a part opposed to a plug blade rest metal fitting body of a covering body constituting the covering body and forming a pair of conductive plug blade rest holes in parts opposed to the conductive plug blade rest spring in the plug insertion part. SOLUTION: A covering body defines a circular opening hole in a part opposed to a plug blade rest metal fitting of an approximately box-shaped covering body 52 and a plug insertion part 54 is rotatably attached to the opening hole. A pair of conductive plug blade rest holes 58 are formed in parts opposed to conductive plug blade rest spring members of the plug insertion part 54 and a ground plug blade rest hole 60 in a part opposed to the ground plug blade rest spring member of the plug insertion part 54. The conductive plug blade rest holes 58 and the ground plug blade rest hole 60 are sufficient to have such dimensions as being approximately same as the cross sections of the conductive plug blade and the ground plug blade of the respective insertion plugs. Either of them can be formed into small so as to reduce the entry of dust into the inside of the outlet.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power outlet for a personal computer, a word processor, other OA equipment, a TV game machine, etc. Things.

[0002]

2. Description of the Related Art FIG. 6 is an exploded perspective view of an example of a conventional outlet having a retaining member. As shown in the figure, the outlet is composed of two or more blade receivers 10 for inserting and holding each blade of an insertion plug (not shown), and a plastic socket supporting the blade receiver 10. Base 30 and base 30
And a plastic cover 50 for covering the blade receiving member 10.

[0003] The blade receiving member 10 is composed of a pair of conductive blade receiving members 12, 12 to which a power cord (not shown) is connected.
And a grounding blade receiving bracket 14 to which a ground (not shown) is connected. The conductive blade receiving member 12 and the grounding blade receiving member 14 are attached to the base 30 by terminal screws 16.
The conductive blade receiving members 12 of the respective blade receiving members 10 are formed in parallel, and the grounding blade receiving members 14 of the respective blade receiving members 10 are commonly formed.

[0004] The conductive blade receiving member 12 has a conductive blade receiving spring member 18 for holding a conductive blade of an insertion plug (not shown) therebetween, and the conductive blade receiving spring member 18 has an insertion plug. A projection 20 for retaining the engagement with the conductive blade at a predetermined rotation angle is formed so as to protrude toward the side where the blade is inserted. The grounding blade receiving member 14 has a grounding blade receiving spring member 22 that holds the grounding blade of the insertion plug therebetween.

[0005] A plug insertion portion 54 is formed at a portion of the cover 50 facing the blade receiving member 10. A pair of conductive blade receiving holes 58 are formed at a portion of the plug insertion portion 54 facing the conductive blade receiving spring member 18, and at a portion of the plug insertion portion 54 facing the ground blade receiving spring member 22. A grounding blade receiving hole 60 is formed.

[0006] The conventional outlet is formed as described above. When a plug is inserted into the plug insertion portion 54 and the plug is rotated clockwise by a predetermined angle,
Each of the blades of the plug is slightly slid by a predetermined angle in the conductive blade receiving spring member 18, and the projection 20 of the conductive blade receiving spring member 18 is engaged with the hole at the tip of the plug, so that the plug is inserted. Is locked and the plug cannot be removed from the outlet.

[0007]

By the way, since the plug insertion portion 54 of the outlet with the retaining plug rotates and locks each blade of the insertion plug by a predetermined angle, each plug blade is rotated by a predetermined angle. Then, the conductive blade receiving hole 58 and the ground blade receiving hole 60 are formed to be large by the amount of the trajectory of each blade.

In the case of an outlet having a plurality of insertion portions, if the insertion plugs are inserted into all the plug insertion portions 54, the conductive blade receiving hole 58 and the grounding blade receiving hole 60 are closed, and the inside thereof is dust-free. When there is an unused plug insertion portion 54, dust easily enters the outlet from the large conductive blade receiving hole 58 and the ground blade receiving hole 60.

[0009] In general, an outlet is likely to be left on the floor or the back of a personal computer or the like for a long time, so that a large amount of dust easily accumulates inside the outlet.
Moreover, since electricity is flowing inside the outlet,
There is a possibility that a spark may be generated at a certain beat, and there is a problem that the fire of this spark may transfer to dust and cause a fire. In addition, there is also a problem that contact of the outlet is deteriorated due to dust, and the flow of current is intermittent and the personal computer or the like is broken.

In addition, a conductive plug blade receiving hole 5 of a conventional outlet is provided.
As described above, the hole 8 and the grounding blade receiving hole 60 are formed large by the trajectory of each of the blades. Alternatively, there is a high possibility that something may be inserted into the grounding blade receiving hole 60, which may cause an electric shock accident.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a highly safe outlet having a stopper having a conductive blade receiving hole and a grounding blade receiving hole as small as possible.

[0012]

According to the present invention, there is provided an outlet with a stopper according to the present invention, comprising one or more blade receivers for inserting and holding respective blades of an insertion plug, and the blade receivers. It comprises a supporting base and a cover attached to the base and covering the blade receiving member.

[0013] More specifically, the blade holder includes a pair of conductive blade receivers to which a power cord is connected, and the conductive blade holders hold a conductive blade of the insertion plug with the conductive blade therebetween. It has a blade receiving spring member, and the conductive blade receiving spring member is formed with a projection for retaining the blade to engage with the conductive blade at a predetermined rotation angle position.

The cover comprises a cover body and a plug insertion portion, and an opening is formed in a portion of the cover body facing the plug blade receiving member, and the plug hole is formed in the opening. The insertion portion is rotatably attached, and a pair of conductive blade reception holes is formed in a portion of the plug insertion portion facing the conductive blade reception spring.

A pair of guide projections are provided on the back surface of the plug insertion portion to abut on the side of the tip of each conductive blade reception spring from the outside, and on the side of the tip of the grounding blade reception spring from the outside. A guide projection that abuts and a guide projection that abuts from the inside on the side of the tip of the conductive blade reception spring and the side of the tip of the ground blade reception spring are formed.

[0016] A spring for urging the plug insertion portion in a rotational direction in which a conductive blade receiving hole moves away from the retaining protrusion is provided between the cover body and the plug insertion portion; A stop mechanism for stopping rotation of the plug insertion portion when the conductive blade reception hole comes to a position facing the blade receiving spring member and opposite to a portion where the retaining protrusion is not provided; May be.

Further, the present invention further comprises a grounding blade receiving member to be connected to the ground, specifically, a grounding blade receiving member. The grounding blade receiving member holds the grounding blade of the insertion plug with the grounding blade held therebetween. A grounding blade receiving hole may be formed at a portion of the plug insertion portion facing the grounding blade receiving spring member.

In the case where the plug is rotated to prevent the plug from being removed and locked, it is preferable to provide a slight gap (play) between the cover body and the plug insertion portion for an outlet whose plug is slightly eccentrically rotated. preferable.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an exploded perspective view of an outlet with a retaining device according to an embodiment of the present invention. As shown in the figure, the outlet includes two or more blade receiving receptacles 10 for inserting and holding each blade of the plug 9,
Plastic base 30 for supporting the blade receiving member 10
And a plastic cover 50 attached to the base 30 and covering the blade receiving member 10.

FIG. 2 is a partially enlarged view of FIG. As shown in FIG. 1, the blade receiving member 10 includes a pair of conductive blade receiving members 12, 12 to which a power cord 11 is connected, and a ground wire 1.
3 is connected to the grounding blade receiving bracket 14. The conductive blade receiving member 12 and the grounding blade receiving member 14 are attached to the base 30 by fixing screws 15. Conductive blade holder 1
A terminal screw 16 for fixing the end of the power cord 11 and the end of the ground wire 13 is attached to the metal plug 2 and the grounding blade receiving member 14. The conductive blade receiving member 12 is integrally formed in parallel with a single molded metal plate, and the grounding blade receiving member 14 is formed of a single molded metal plate.

The conductive blade receiving member 12 has a conductive blade receiving spring member 18 for holding the conductive blade 9a of the insertion plug 9 therebetween, and the conductive blade receiving spring member 18 includes a conductive blade. 9a that engages with the fixing 9a at a predetermined rotation angle position
0 protrudes toward the side where the blade is inserted.
The grounding blade receiving member 14 has a grounding blade receiving spring member 22 for holding the grounding blade 9b of the insertion plug 9 therebetween.

FIG. 3 is an exploded perspective view of the cover. As shown in the figure, the covering 50 includes a substantially box-shaped covering main body 52 and a substantially disk-shaped plug insertion portion 54. A circular opening hole 56 is formed in a portion of the cover body 52 facing the blade receiving member 10, and a plug insertion portion 54 is rotatably attached to the opening hole 56.

A slight gap (play) is provided between the cover body 52 and the plug insertion portion 54, and when the insertion plug 9 is rotated to prevent it from being locked, the eccentric rotation of the insertion plug 9 causes. The eccentric rotation of the plug insertion portion 54 is enabled.

A pair of conductive blade receiving holes 58 are formed in the portion of the plug insertion portion 54 facing the conductive blade receiving spring member 18, and the grounding blade receiving spring member 2 of the plug insertion portion 54 is formed.
A ground plug blade receiving hole 60 is formed in a portion facing the second plug 2. It is sufficient that the size of the conductive blade receiving hole 58 is substantially the same as the cross section of the conductive blade of the plug 9.
It is sufficient if the size is approximately the same as the cross section of the grounding blade of the insertion plug 9.

On the back surface of the plug insertion portion 54, a pair of guide projections 62, 62 abutting from the outside on the side of the tip of each conductive blade receiving spring member 18, and the grounding blade receiving spring member 2
Guide projection 64 that abuts from the outside on the side of the tip of 2
A guide protrusion 66 is formed on the side of the distal end of the conductive blade receiving spring member 18 and the side of the distal end of the grounding blade receiving spring member 22 from the inside.

A pair of springs 68, 68 for urging the plug insertion portion 54 in the direction of arrow A are provided between the cover body 52 and the plug insertion portion 54. When the outlet is not used, the rotational position of the plug insertion portion 54 is returned to the original position by the springs 68,68.

A pair of claws 70, 70 are provided near the outer periphery on the back surface side of the plug insertion portion 54, and a pair of claws 70, 70 for stopping the movement of the claws 70, are provided at the edge of the opening 56 of the cover body 52. Are provided, and the rotation range of the plug insertion portion 54 is regulated.

FIG. 4 is an explanatory diagram showing the relationship between the cover body and the plug insertion portion from the front side, and FIG. 5 is an explanatory diagram showing the relationship between the cover body and the plug insertion portion from the back side. As shown in these figures, when the insertion plug 9 is inserted into the plug insertion portion 54 and the insertion plug 9 and the plug insertion portion 54 are rotated in the direction of arrow A (locking direction), the conductive blade receiving spring member 18 and the ground Blade receiving spring member 2
The opening 2 is restricted by these guide projections 62, 64, 66, and even if the insertion plug 9 is to be pulled out, the projection 20 formed on the conductive blade reception spring member 18 and the hole at the tip of the insertion blade of the insertion plug 9. Will not come off.

The plug and the plug insertion portion 54 are indicated by arrows B
Is rotated in the direction of (lock release direction), the conductive blade receiving spring member 18 and the ground blade receiving spring member 22 are released from the regulation by the guide projections 62, 64, and 66. , Conductive blade receiving spring member 1
The engagement between the projection 20 formed at 8 and the hole at the tip of the plug blade of the insertion plug 9 is released.

In the above embodiment, the case where the grounding plug receiving hole 60 is provided in the plug insertion portion 54 of the cover 50 has been described. However, the present invention is not limited to this embodiment, and as shown in FIG. The grounding plug receiving hole 60 may not be provided.

[0031]

According to the present invention, since the conductive blade receiving hole and the grounding blade receiving hole of the outlet can be formed smaller than the conventional outlet, the inside of the outlet from the conductive blade receiving hole and the grounding blade receiving hole can be formed. This has the effect of reducing the intrusion of dust into the building, reducing the possibility of causing a fire, and increasing safety. In addition, since there is no interruption of current due to poor contact, there is an effect that failure of equipment such as a personal computer can be prevented.

Further, according to the present invention, since the conductive blade receiving hole and the grounding blade receiving hole of the outlet can be formed smaller than the conventional outlet, the conductive blade receiving hole or the grounding blade receiving hole can be mischievously made by a child. There is an effect that the possibility of injecting something into the device is reduced, and the risk of causing an electric shock accident is reduced.

The present invention also provides a pair of guide projections which contact the back side of the plug insertion portion with the side of the tip of each conductive blade receiving spring from the outside, and a pair of guide protrusions which are located on the side of the tip of the conductive blade receiving spring. When a guide projection is provided to abut from the inside, the conductive blade receiving spring does not open even when the plug insertion portion is rotated, and the protrusion provided on the conductive blade receiving spring and the hole at the tip of the conductive blade of the plug are not provided. There is an effect that the engagement of.

Further, according to the present invention, when a gap is provided between the cover body and the plug insertion portion so that the plug insertion portion can be eccentrically rotated, the insertion plug inserted into the plug insertion portion rotates eccentrically. Also, there is an effect that it becomes possible to insert the insertion plug into the insertion portion and rotate it.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an outlet with a stopper according to an embodiment of the present invention.

FIG. 2 is a partially enlarged view of FIG.

FIG. 3 is an exploded perspective view of a cover.

FIG. 4 is an explanatory diagram showing a relationship between a cover body and a plug insertion portion from the front side.

FIG. 5 is an explanatory diagram showing the relationship between the cover body and the plug insertion portion from the back side.

FIG. 6 is an exploded perspective view of an example of a conventional outlet with a retaining member.

[Explanation of symbols]

 REFERENCE SIGNS LIST 9 Plug-in plug 10 Specific blade receiving bracket 12 Conductive blade receiving bracket 14 Grounding blade receiving bracket 15 Fixing screw 16 Terminal screw 18 Conductive blade receiving spring member 20 Projection 22 Grounding blade receiving spring member 30 Base 50 Coating body 52 Cover body 54 Plug insertion portion 56 Opening hole 58 Conductive blade receiving hole 60 Grounding blade receiving hole 62 Guide projection 64 Guide projection 66 Guide projection 68 Spring 70 Claw 72 Stopper

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Chen Kaigi 8-6-12 Nishigotanda, Shinagawa-ku, Tokyo 5th Kantoso 208 F-term (reference) 5E021 FA03 FA16 FB07 FB21 FC36 HC16 HC33 LA01 5E087 EE02 EE10 FF16 FF17 GG12 HH01 MM05 QQ03 RR49

Claims (3)

[Claims] 1. A blade holder for inserting and holding each blade of an insertion plug, a base for supporting the blade holder, and a base mounted on the base. And a cover for covering the blade receiving member, wherein the blade receiving member includes a pair of conductive blade receiving members to which a power cord is connected, and the conductive blade receiving member is used for conducting an insertion plug. The blade has a conductive blade receiving spring member that holds the blade in between, and the conductive blade receiving spring member has a retaining protrusion that is engaged with the conductive blade at a predetermined rotation angle position. The coating body includes a coating body and a plug insertion portion, and an opening is formed in a portion of the coating body facing the blade receiving member, and the plug insertion portion is rotated in the opening. Is attached so as to be able to face the conductive plug blade receiving spring of the plug insertion portion. Stopping power outlet omission wherein the pair of conductive plug pins receiving holes are formed. 2. A pair of guide projections, which are in contact with the outer side of the distal end of each of the conductive blade receiving springs from the outside on the back surface of the plug insertion portion, and are formed on the side of the distal end of the conductive blade receiving spring. The outlet with a retaining device according to claim 1, further comprising a guide projection that comes into contact with the inside from the inside. 3. The retaining device according to claim 1, wherein a gap is provided between the cover body and the plug insertion portion so as to enable eccentric rotation of the plug insertion portion. With outlet.