JPH0955250A - Plug socket structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plug receptacle structure in which insertion of foreign substances into insertion holes are prevented, for which a partition plate commonly used in a conventional plug receptacle main body is not needed, and of which manufacturing cost is lowered and assembly processes are lessened. SOLUTION: In a plug receptacle structure having a plug receptacle upper cover 1 and a plug receptacle pedestal 2 to be fitted with the cover 1, rib plates 23 extended in parallel in the longitudinal direction are formed on the bottom face of the inside of the plug receptacle pedestal 2. Recessed grooves 24a, 24a', 24b, 24b' are formed in the upper parts of the rib plates 23 and utilizing the spaces between recessed grooves as supporting plate parts 25, a safety gate 3 consisting of a female frame 30a and a male frame 30b is installed. An elastic member 4 to give assisting force to turn back to a closed state from an open state of the female frame 30a and the male frame 30b is installed for the female frame 30a and the male frame 30b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outlet used together with a plug in electric wiring.

[0002]

2. Description of the Related Art Among conventional outlet structures, a mechanism for closing the outlet like a shutter is provided inside the outlet in order to prevent foreign matter from entering the outlet through the inlet. The one provided is known. In this specification, a mechanism that closes the insertion opening like a shutter is referred to as a "safety gate".

FIG. 1 is a diagram schematically showing a conventional outlet structure provided with a structure for preventing the entry of foreign matter. As shown in the figure, the outlet structure has an outlet upper lid 1'and an outlet pedestal 2'connected to the outlet upper lid 1 ', and the following parts are further provided between them. There is. That is, the edge plate 3'provided on the outlet base 2'and the edge plate 3 '
A safety gate 4'provided above and a U-shaped elastic member 5'which is provided outside the safety gate 4 '. The safety gate 4'is composed of a pair of frames 4a 'and 4b' connected by an engaging tip 40 '.

When the plug insertion leg is not inserted into the outlet structure, the safety gate 4'is closed as shown in FIG. When the insertion leg of the plug is inserted and the insertion leg comes into contact with the frame bodies 4a 'and 4b' and a force is applied, the frame bodies 4a 'and 4b'
Move in mutually opposite directions, and the insertion port 30 'provided in the cut-off plate 3'below it is exposed. As a result, the insertion leg is provided with the insertion opening 3 provided in the cut-out plate 3 '.
It can be inserted into 0 ', and can reach the internal electrical connection structure. When the insertion leg comes off the outlet structure,
By the urging force of the U-shaped elastic member 5 ', the frame bodies 4a' and 4b 'of the safety gate 4'return to their original closed positions, and the insertion opening 30' provided in the cut-off plate 3'is To be covered.

[0005]

However, in the above-described conventional well-known outlet structure, the mechanism for preventing the intrusion of foreign matter requires the provision of the safety gate and the provision of the cut-off plate, which reduces the cost. Not only will the number increase, but the number of parts will increase and the structure will become complicated, and assembly during manufacturing will take time and effort.

It is an object of the present invention to provide a safety gate structure which can form a safety gate without using the above-mentioned cut-off plate, which makes it possible to reduce the labor and time of assembly at the time of manufacturing at low cost. .

[0007]

The outlet structure of the present invention has the following features. (1) In an outlet structure having an outlet upper lid and an outlet pedestal that engages with the outlet lid, a rib plate extending in parallel in the longitudinal direction is integrally formed on the inner bottom surface of the outlet pedestal. Is formed on the upper portion of the rib plate near one end thereof, and a pair of concave grooves is provided in the longitudinal direction of the rib plate. , A safety gate composed of a female frame and a male frame is provided, and slide rails slidably fitted in the recessed grooves of the outlet pedestal are respectively provided on the bottom surfaces of both parallel side walls of the female frame. The side walls on the side where the is installed are so that the safety gate is stably supported by the rib plate of the outlet base. An elastic member is provided which is supported on the support plate portion of the concave groove of the lens pedestal and applies a biasing force for returning the female frame and the male frame on the rib plate from the open state to the closed state. There is an outlet structure that is characterized.

(2) An outlet structure having an outlet upper lid and an outlet pedestal that engages with the outlet lid. The outlet pedestal extends to both sides of the inner bottom surface of the outlet pedestal with a longitudinal centerline of the bottom surface interposed therebetween. Two rows of parallel rib plates are integrally formed with the inner bottom surface, and two recessed grooves are formed in the upper portions of the two rows of parallel rib plates so as to cross the rib plate upper portion in the width direction. The two recessed grooves provided on the two rows of rib plates are aligned with each other so as to function as the two rows of recessed grooves as a whole. A portion between the recessed grooves is a support plate portion, and a safety gate that can be opened and closed by using the recessed grooves in the two rows for sliding is provided on the two rows of support plates. Composed by male frame Is the the bottom surface of the female frame 2
Two rows of slide rails that are slidably fitted in the groove of the row are provided, and the female frame and the male frame can slide in the directions to spread each other to open the gate through which the insertion leg of the plug can pass. An outlet structure characterized in that an elastic member is provided for applying a biasing force for returning these from an open state to a closed state.

(3) An outlet structure having an outlet upper lid and an outlet pedestal that engages with the outlet lid. The outlet pedestal extends to both sides of the bottom surface of the outlet pedestal with a centerline in the longitudinal direction of the outlet pedestal interposed therebetween. Two rows of parallel rib plates are integrally formed with the inner bottom surface, and two recessed grooves are formed in the upper portions of the two rows of parallel rib plates so as to cross the rib plate upper portion in the width direction. The two recessed grooves provided on the two rows of rib plates are aligned with each other so as to function as the two rows of recessed grooves as a whole. A portion between the recessed grooves is a support plate portion, and a safety gate that can be opened and closed by using the recessed grooves in the two rows for sliding is provided on the two rows of support plates. Composed by male frame Is the the bottom surface of the female frame 2
Two rows of slide rails that are slidably fitted in the groove of the row are provided, and the female frame and the male frame can slide in the directions in which they spread out to open the gate through which the insertion leg of the plug can pass. An elastic member for applying a biasing force for returning them from the open state to the closed state is provided, and the elastic member is a U-shaped elastic tip, and the safety gate is closed. In order to return, the U-shaped arms of the elastic member are arranged so as to apply a biasing force to the female frame and the male frame from both outsides.

[0010]

In the outlet structure of the present invention, two rib plates extending in parallel are provided on the bottom surface of the outlet base. A pair of recessed grooves is provided in the upper portion near both ends of the rib plate in the longitudinal direction of the rib plate. The rib plate between the pair of concave grooves serves as a support plate portion, and a safety gate is provided thereon. The safety gate is composed of a female frame and a male frame. Slide rails having widths capable of slidably fitting in the concave grooves of the outlet pedestal are provided on the bottom surfaces of both parallel side walls extending in the moving direction of the female frame. Both side walls provided with the slide rails are supported on the support plate portion so that the safety gate is stably supported by the rib plate of the outlet pedestal. Further, an elastic member is provided to apply a biasing force for returning the combined state of the female frame and the male frame from the open state to the closed state.

The structure described above eliminates the need for a sill plate, which has been conventionally required for the structure of a safety gate, and enables a preferable opening / closing operation of the safety gate even when the sill plate is omitted.

The "longitudinal direction" referred to in the present specification is a direction parallel to the upper surface of the outlet structure and connects two insertion ports provided for inserting two blades of one plug. The direction perpendicular to the direction. Further, in the present specification, for the sake of description, a direction connecting two insertion ports provided for inserting two blades of one plug is referred to as a “width direction”. Further, in the present specification, for the sake of description, the direction in which the plug is inserted, that is, the direction from the upper surface to the lower surface is referred to as the “vertical direction”.

[0013]

EXAMPLES The present invention will be described in more detail by showing examples. The outlet structure according to the present invention can be of various types, from a single type that corresponds to only one plug, to a double type that is called a double outlet, and a type that has a larger number of connected types. In this embodiment, as an example, a dual outlet structure is shown.

FIG. 2 is a perspective view showing the outlet structure of the present invention, and shows the outlet upper lid separated from the outlet base. FIG. 3 is a view showing a cross section of the outlet structure of FIG. 2 at a portion into which a plug is inserted, the cross section being perpendicular to the longitudinal direction. In the figure, the safety gate is in a closed state. FIG. 4 is a sectional view similar to FIG. 3, but showing a state in which the plug is inserted and the safety gate is opened. 2 to 4, the illustration of the internal electrical connection structure is omitted.

As shown in FIG. 2, the outlet structure of the present invention is a structure having an outlet upper lid 1 and an outlet pedestal 2 that engages with this. The following structure regarding the safety gate is provided inside the body in which these are engaged with each other.

A panel 10 which is the upper surface of the outlet upper cover 1.
In order to correspond to two plugs, two sets of insertion ports 11a and 11b are provided respectively. On the lower surface of the outlet cover 1, near the two long sides of the four sides,
A pair of locking claws 12 are formed to project. On the other hand, of the side walls of the outlet pedestal 2, a surface that extends in the longitudinal direction (the surface 20 that is visible in the front in FIG. 2).
b and the surface on the opposite side) are provided with engaging grooves (not shown) at positions corresponding to the locking claws 12 of the outlet upper lid, and the outlet upper lid 1 and the outlet pedestal 2 engage with each other. You can do it.

A rib plate 23 is integrally provided on the inner bottom surface of the outlet base 2 along the longitudinal direction. The rib plate 23 is composed of two rows of parallel wing plates 23a and 23b. Recessed grooves 24a and 24a 'are formed at one end of one wing plate 23a at intervals in the longitudinal direction. The space between the concave grooves 24a and 24a 'is a support plate portion 25a. Further, the concave groove 2 is also provided at one end of the other wing plate 23b.
Grooves 24b and 24b 'at positions facing 3a and 23a'
Is formed, and a space between the concave grooves 24b and 24b 'is similarly used as a support plate portion 25b. The safety gate 3 utilizes these two pairs of concave grooves and is provided on two support plates to cover the internal electrical connection structure. That is, the safety gate 3
It is provided directly to the outlet base 2. On both side walls of the safety gate 3 in the width direction, U-shaped elastic members 4 are provided.
It is provided so that both arms contact.

As shown in FIGS. 2 to 4, the safety gate 3 is composed of a female frame 30a and a male frame 30b. One side edge 31a of the female frame 30a
An inclined surface 32a having a thickness is formed on the. Slide rails 34 are further provided on the bottom surfaces of both side edges 33a in the longitudinal direction.
a is formed. The slide rail 34a is slidably fitted in the grooves 24a and 24b and 24a 'and 24b', respectively. As a result, the moving direction of the female frame is 24a and 24b or 24a 'and 24.
Limited to b'direction, female frame is rib plate 2
3 Slide freely on the width direction. Further, the side edge 31a of the female frame 30a has a support plate portion 25.
It is placed so as to straddle a and 25b, and is supported by the support plate portions 25a and 25b.

Further, the one side edge 31b of the male frame 30b is also formed with a slope 32b having a similar thickness, and one side edge 31b opposed to the slope 32b is further provided with an engaging tongue portion 33b. The engaging tongue portion 33b is formed by extending horizontally toward the outside, and the engaging tongue portion 33b has a female frame 30a.
By engaging with the hollow portion 35a, the female frame 30a and the male frame 30b are connected to each other and do not separate from each other during the movement for performing the opening / closing operation.

The U-shaped elastic member is composed of a connecting portion 40 and two holding arms 41a and 41b extending from both ends of the connecting portion 40 so as to form a U shape. The holding arms 41a and 41b contact the side edge 31a of the female frame 3Oa having the inclined surface and the side edge 31b of the male frame 30b having the inclined surface 32b, and the female frame 30a and the male frame 30b are
In the state where they are separated from each other, the holding arms 41a, 41
By receiving the urging force of b, they return to the original closed position and come into pressure contact with each other.

The safety gate and the internal electrical connection structure are aligned with each other so that when opened, the bayonet legs of the plug can pass through the safety gate and be connected to the internal electrical connection structure. Has been done. The internal electrical connection structure accepts known plug-in legs,
Any structure that can be electrically connected may be used, and a known structure may be used.

When assembling the outlet structure of the present invention, the safety gate 3 is placed on the rib plate 23 of the outlet pedestal in which the electrical connection structure is incorporated, and the slide rail 34b of the female frame 30a is attached to the rib plate 2.
3 is fitted into the concave grooves 24a, 24a 'or 24b, 24b', and the U-shaped elastic member is brought into contact with the outside of the safety gate 3, and at the same time, the holding arms 41a, 41b are connected to the side edge 31a of the female frame 30a and the male frame 30a. Side edge 31 of frame 30b
b, and further, the engaging claw 1 of the outlet upper lid 1
The assembly is completed by engaging 2 with the engaging groove of the outlet base 2.

Further, as shown in FIGS. 4 and 5, when the insertion legs A1 and A2 of the insertion plug A are inserted into the insertion holes 1la and 11b of the outlet upper lid 1, the insertion legs A1 and A2 are inserted.
A2 moves downward along the inclined surface 32a of the female frame 30a and the inclined surface 32b of the male frame 30b, moves the female frame 30a and the male frame 30b in opposite directions to open the closed state, and Inserted in. Further, when the insertion legs A1 and A2 are pulled out from the outlet main body, the forces that have moved the female frame 30a and the male frame 30b in opposite directions are released, and they are pressed against each other by the urging force of the U-shaped elastic frame,
The safety gate 3 returns to the original closed position.

[0024]

According to the above-described embodiments, the present invention provides a "breaker plate" which is necessary for a conventional outlet main body provided with a safety gate for the purpose of preventing foreign matter from entering through the insertion hole of the insertion plug. Is unnecessary. Therefore, since the number of parts can be reduced and the structure can be simplified, it has an effect of reducing the labor and time of assembly at the time of manufacturing at low cost.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an outlet main body having a known safety gate.

FIG. 2 is an exploded perspective view of an embodiment of the present invention.

FIG. 3 is a cross-sectional view of a state in which a safety gate provided on an outlet pedestal according to an embodiment of the present invention is in a closed state.

FIG. 4 is a cross-sectional view showing a state in which a safety gate provided on an outlet pedestal according to an embodiment of the present invention is in an open state by inserting a plug.

[Explanation of symbols]

 1 Outlet Top Lid 2 Outlet Pedestal 3 Safety Gate 4 Elastic Member 10 Panel 11a Insertion Port 11b Insertion Port 12 Locking Claw 22 Bottom 23 23 Rib Plate 23a Wing Plate 23b Wing Plate 24a Recessed Groove 24a 'Recessed Groove 24b Recessed Groove 24b' Recessed Groove 25a Support plate part 25b Support plate part 30a Female frame 30b Male frame 31a Female frame side edge 31b Male frame side edge 32a Inclined surface 32b Inclined surface 34a Slide rail 40 Connecting part 41a Clamping arm 41b Clamping arm A Insert plug A1 Insert leg A2 Insert leg

Claims (3)

[Claims] 1. An outlet structure having an outlet lid and an outlet pedestal that engages with the outlet lid, wherein a rib plate extending in parallel in a longitudinal direction is provided on an inner bottom surface of the outlet pedestal. Is formed integrally with the rib plate, and a pair of concave grooves is provided in the upper portion near the one end of the rib plate in the longitudinal direction of the rib plate. A space between the pair of concave grooves serves as a support plate portion. A safety gate composed of a female frame and a male frame is provided on the top, and slide rails slidably fitted in the recessed grooves of the outlet pedestal are provided on the bottom surfaces of both parallel side walls of the female frame, The safety gate is stably supported on the rib plate of the outlet base on both side walls on the side where the slide rail is provided. Elastic member that is supported on the support plate portion of the concave groove of the outlet pedestal so as to apply a biasing force to return the female frame and the male frame on the rib plate from the open state to the closed state. An outlet structure characterized by being used. 2. An outlet structure having an outlet upper lid and an outlet pedestal that engages with the outlet lid, wherein an inner bottom surface of the outlet pedestal extends on both sides with a longitudinal centerline of the bottom surface therebetween. A row of parallel rib plates is integrally formed with the inner bottom surface, and two recessed grooves are provided in the upper portion of each of the two rows of parallel rib plates so as to cross the rib plate upper portion in the width direction. The two recessed grooves on the two rows of rib plates are aligned with each other so as to function as two rows of recessed grooves as a whole. A portion between the grooves is used as a support plate portion, and a safety gate that can be opened and closed by using the two rows of recessed grooves for sliding is provided on the two rows of support plates. The safety gate includes a female frame and a male frame. Composed by a frame and Two rows of slide rails are provided on the bottom surface of the female frame so that they can be slidably fitted in the two grooves, and the female frame and the male frame slide in the direction in which they extend toward each other so that the plug legs can pass through. An outlet structure having a structure capable of opening a gate, and an elastic member for applying a biasing force for returning the gate from an open state to a closed state. 3. An outlet structure having an outlet upper lid and an outlet pedestal that engages with the outlet lid, wherein an inner bottom surface of the outlet pedestal extends on both sides with a longitudinal centerline of the bottom surface therebetween. A row of parallel rib plates is integrally formed with the inner bottom surface, and two recessed grooves are provided in the upper portion of each of the two rows of parallel rib plates so as to cross the rib plate upper portion in the width direction. The two recessed grooves on the two rows of rib plates are aligned with each other so as to function as two rows of recessed grooves as a whole. A portion between the grooves is used as a support plate portion, and a safety gate that can be opened and closed by using the two rows of recessed grooves for sliding is provided on the two rows of support plates. The safety gate includes a female frame and a male frame. Composed by a frame and Two rows of slide rails are provided on the bottom surface of the female frame so that they can be slidably fitted in the two grooves, and the female frame and the male frame slide in the direction in which they extend toward each other so that the plug legs can pass through. It has a structure capable of opening the gates, and is provided with an elastic member for applying a biasing force to return these gates from the opened state to the closed state. The elastic member is a U-shaped elastic tip. In order to return the safety gate to the closed state, the U-shaped arms of the elastic member are arranged so as to apply a biasing force to the female frame and the male frame from both outsides. Characteristic outlet structure.