JP3099193B1 - Outlet - Google Patents

Abstract

The present invention provides an outlet that is easy to unplug. A pair of receiving pieces (2) for holding a plug blade of a plug.
7 and 29, the receiving piece 29 is attached to the lever 25 to be movable with respect to the receiving piece 27. The lever 25 is rotatably attached to the body 1. The container body 1 includes an operating portion 33b to be pushed and a pull string 51 to be pulled, and the lever 25 rotates by the pushing operation of the operating portion 33b or the pulling operation of the pull string 51 to move the receiving piece 29 from the receiving piece 27. Moved away, weakening the holding power of the plug. At the same time, the operating tool 3
3 pushes the link body 35 to cause the tip of the pusher 37 to protrude from the body 1. At this time, the pusher 37 pushes the plug so that the plug floats up from the body 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an outlet.

[0002]

2. Description of the Related Art An outlet generally provided has a pair of blade receiving springs for sandwiching the blade from both sides in the thickness direction of the blade so as to perform electrical connection and mechanical holding of the blade. Is configured. In an outlet, it is necessary to reduce the contact resistance of the blade receiving spring to the plug blade of the plug, and it is necessary to hold the plug blade so that the plug is not accidentally pulled out. The pinching force of the blade is relatively large.

[0003]

As described above, since the holding force of the blade receiving spring for holding the plug blade of the plug is relatively large, a relatively strong force is required to remove the plug from the outlet. is there. As a result, the current outlet has a problem that it is not easy for the elderly and the physically handicapped to unplug.

[0004] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an outlet that allows a plug to be easily pulled out with a relatively small force.

[0005]

According to a first aspect of the present invention, there are provided a pair of receiving pieces arranged opposite to each other so as to sandwich each contact of a plug, and two receiving pieces corresponding to each contact. An opening / closing mechanism connected to at least one of the pieces to change the relative position of the two receiving pieces and to spring-bias in a direction to increase the holding force of the contact by the two receiving pieces; <br/> and an operating member for operating the opening and closing mechanism portion in a direction to weaken the holding force of the contacts by the two receiving pieces in the vessel body by operating the operation unit includes an operation portion for exposure to the outside Two opening / closing mechanisms corresponding to the respective contacts
Is connected to at least one of the receiving pieces
With the lever attached to the part and the two receiving pieces
A holder for urging the lever in a direction to increase the holding force of the contact.
A holding spring, wherein the operating body is operated by operating the operating unit.
The cam section moves straight ahead.
Direction for weakening the holding force of the contact by the two receiving pieces
Move away from the operation unit to convert the rotation of the lever
The cam surface is an inclined surface that is formed so as to be gradually tapered.
Is formed, and the tip is
A pusher for moving back and forth from the container, and a linear movement of the cam section.
To move the pusher tip out of the body
It is provided. According to this configuration, at least one of the two receiving pieces sandwiching each contact (plug blade or contact pin) of the plug is moved in conjunction with the operation of the operating body to move the contact by the receiving piece. Since the holding force is weakened, a large force is not required when removing the plug, and the operation of removing the plug becomes easy. In addition, a cam associated with the operation of the operating tool
A lever that converts the linear movement of the body into a rotational movement, and a lever
The holding spring, which urges the spring to increase the pinching force of the contact,
The opening and closing mechanism can be configured with a small number of parts,
It can be provided at relatively low cost. Moreover,
Operate the operating tool to make the pusher protrude from the body and insert the plug into the body.
Can be pushed in a direction away from the
Reduces the force holding the plug contacts
Push the plug away from the body and push the plug
Can be lifted from the
Layers become easier.

[0006]

[0007]

According to a second aspect of the present invention, in the first aspect of the present invention, the link is pivotally mounted on a body, and the pusher is rotatably connected to the link. In this configuration, the link body is pivotally attached to the body, and when the operating body is operated, the link body rotates with respect to the body. here,
When the link body and the presser are fixed, the inclination of the presser with respect to the surface of the container changes with the rotation of the link body. Are rotatably connected to each other, so that the pusher can be moved forward and backward so as not to be inclined with respect to the surface of the container. That is, when the operating body is operated, the plug is pushed straight, and the force applied to the operating body can be efficiently applied as the force for removing the plug.

[0009] The invention of claim 3 is claim 1 or claim 1.
In the invention of the second aspect , each of the two receiving pieces corresponding to each contact is arranged so as to be arranged in a circumferential direction of one circular arc centered on the center of rotation of the lever, and the rectilinear movement of the cam body. Each of the two receiving pieces corresponding to each contact moves in a direction to increase the distance between each other. Since this configuration reduces the holding force between the receiving pieces by increasing the distance between the receiving pieces, it can be adopted regardless of the cross-sectional shape of the contact of the plug.

[0010] The invention of claim 4 is claim 1 or claim 1.
In the invention of the second aspect , each of the two receiving pieces corresponding to each contact is arranged so as to be arranged in a radial direction of one circular arc centered on the center of rotation of the lever, and accompanying the rectilinear movement of the cam body. The two receiving pieces corresponding to the respective contacts move to positions where they do not face each other. According to this configuration, since the holding force is reduced by shifting the position of the receiving pieces instead of changing the distance of the receiving pieces, it can be used when the plug has a flat contact.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) As shown in FIG. 1, a container 1 has a rectangular parallelepiped body 11 having an open front surface (upper surface in FIG. 1) and a rectangular parallelepiped having an open rear surface. It is formed in the shape of a rectangular parallelepiped by combining with the cover 12 having a rectangular shape. The body 11 and the cover 12 are synthetic resin molded products, and are fixed by bonding or welding after assembly.

As shown in FIG. 6, a pair of blade insertion holes 16 penetrating from front to back are formed at one longitudinal end of the front wall of the cover 12, and each of the blade insertion holes 16 is inserted adjacent to each blade insertion hole 16. A hole 17 is formed. Further, an operation hole 18 penetrating from front to back is formed at the other end in the longitudinal direction of the front wall of the cover 12. Cover 12 is provided on one side wall of operation hole 18.
An open notch 19 is formed on one side surface in the longitudinal direction. In a cross section orthogonal to the longitudinal direction of the cover 12, the width of the notch 19 is smaller than the width of the operation hole 18,
A step 20 is formed between the operation hole 18 and the notch 19.

On the other hand, a cylindrical shaft projection 23 and a plurality of positioning projections 24 are protruded at the center of the inner bottom surface of the body 11, and a shaft pin 23a having a diameter smaller than that of the base side is formed at the tip of the shaft projection 23. Is formed. The shaft pin 23a is provided with shaft holes 25b, 44 provided in two plate-like levers 25, 44.
b. The lever 44 is supported by the base of the shaft projection 23 and the positioning projection 24, and the lever 25 is overlaid on the lever 44 and supported by the positioning projection 24. Therefore, the positioning protrusion 24 supporting the lever 25 has a larger protrusion dimension from the inner bottom surface of the body 11 than the positioning protrusion 24 supporting the lever 44. Also, by providing a step at a portion of the lever 25 that does not overlap with the lever 44, instead of making the protrusion dimensions of the positioning protrusion 24 different, the body 11
May be configured so that the distance between the inner bottom surface and each of the levers 25 and 44 is equal.

The levers 25 and 44 are respectively provided with spring seats 25a and 44e having projections for receiving springs. The projections of the spring seats 25a and 44e are respectively provided at one ends of holding springs 26 and 47 made of coil springs. Is inserted into. The spring receiving protrusions 12 b projecting from the inner surfaces of both side walls of the body 11 are inserted into the other ends of the holding springs 26 and 47, respectively.
That is, the holding springs 26 and 47 are held between the inner surfaces of both side walls of the tomb 11 and the spring seat pieces 25a and 44e. Accordingly, the lever 25 is spring-biased counterclockwise around the shaft pin 23a as viewed from above in FIG.
The lever 44 is spring-biased clockwise around the shaft pin 23a as viewed from above in FIG. In addition,
In order to prevent the levers 25, 44 from floating from the inner bottom surface of the body 11, a holding rib 12 a (see FIG. 3) protrudes from a portion of the inner bottom surface of the cover 12 corresponding to the vicinity of the tip of the lever 25, 44. You.

A receiving piece 27 made of a sheet metal material having good conductivity is disposed on the body 11 at a position corresponding to each blade insertion port 16 provided on the cover 12. A terminal plate 27 a is formed integrally and continuously at the base of each receiving piece 27, and the receiving piece 27 is positioned with respect to the body 11 by the peripheral portion of the terminal plate 27 a abutting against the positioning projection 24. The intermediate portion of the terminal plate 27a is bent so as to form a step, and a part of the terminal plate 27a is exposed on the back surface of the cover 12 by inserting the bent portion into the bottom wall of the body 11. A terminal screw 27b with a washer is screwed into a portion of the terminal plate 27a exposed on the back surface of the cover 12.

On the other hand, a partition wall 12d (see FIG. 4) inserted between the adjacent receiving pieces 27 protrudes from the inner bottom surface of the cover 12 to ensure insulation between the receiving pieces 27. A protective cover 10 is detachably attached to the back of the body 11, so that the terminal plate 27a is not exposed to the outside.
Therefore, when using as a table tap, exposure of a charged part can be prevented by attaching protective cover 10 after connecting a power supply line to terminal board 27a.

The receiving piece 29 for holding the contact of the plug together with the receiving piece 27 fixed to the body 11 is made of the same material as the receiving piece 27, and is attached to each of the levers 25 and 44. That is, fixing ribs 30 project from the front surfaces of the levers 25 and 44, respectively. The base of the receiving piece 29 is held by the fixing rib 30, and the receiving piece 29 is fixed using a fixing tool 31 such as a rivet. It is fixed to the rib 30. As described above, the levers 25 and 44 are spring-biased by the holding springs 26 and 47, respectively, and the receiving pieces 29 attached to the levers 25 and 44 by the spring force.
Respectively approach the corresponding receiving pieces 27.

Each of the levers 25 and 44 has a spring seat 25
a, 44e, the push portions 25c, 44
c is formed. The pressing portions 25c and 44c are opposed to each other, and the facing surface is an inclined surface which is inclined so that the distance between them is smaller toward the lower part in FIG. Both pushing parts 25c, 4
A cam body 33c that constitutes the operation body 33 is disposed between 4c. The operation body 33 is provided with an operation hole 18 formed in the cover 12.
Operating section 33b inserted into the push section 25c, 4
4c and a pull cord 51 described later.

The operation portion 33b is provided with the operation hole 18 and the step portion 2.
It is guided so that it does not fluctuate by 0. Further, a push leg 33e is protrudingly provided on the back surface of the operation unit 33b. Here, the operating portion 33b falls out of the body 1 by engaging a projection (not shown) formed on the inner peripheral surface of the operation hole 18 with a projection (not shown) provided on the operating portion 33b. I do not have it. The operating portion 33b can be pushed into the case 1, and the pushing amount is regulated by the depth of the operating hole 18.

On the other hand, on both side surfaces of the cam body 33c, an operation unit 3 is provided.
A cam surface 33a, which is an inclined surface formed such that the cam body 33c is tapered as the distance from the cam surface 33b increases, is formed. That is, the cam surface 33a faces the inclined surfaces of the pressing portions 25c and 44c. Therefore, when the cam body 33c is moved straight back with respect to the body 1, the pressing portions 25c and 44c provided on both levers 25 and 44 are pushed by the cam surface 33a, and the lever 2
5, 44 rotate against the spring force of the holding springs 26, 47. That is, the receiving piece 29 provided on the levers 25 and 44 moves so as to increase the distance from the receiving piece 27 fixed to the body 11 as shown in FIG. As a result, the holding force of the plug held between the receiving pieces 27 and 29 to the contact becomes small, and the plug can be easily pulled out with a small force. Here, the cam body 33c is
Is formed.

By the way, the push leg 3 extended to the operation portion 33b
One end of a plate-like link body 35 is inserted between 3e and the cam body 33c. Shaft pins 35a protrude from both side edges of the link body 35, and each shaft pin 35a is
1 is supported by bearings 36 formed on the inner surfaces of both side walls.
The other end of the link 35 is in contact with the rear end of the pusher 37. That is, the other end of the link body 35 is formed in a forked shape, and a ball receiving hole 39 is formed in a portion formed in the forked shape. A part of the ball 40 provided at the rear end of the presser 37 is inserted. The pusher 37 includes a push rod 41 extending forward from the ball 40, and the push rod 41 is inserted into the insertion hole 17 of the cover 12. That is,
The link body 35 allows the two push rods 41 to move forward and backward at the same time. Each push rod 41 is inserted into a return spring 42 which is a coil spring, and each return spring 42 is provided with a holding piece 48 (FIGS. 3 and 4) protruding from the inner peripheral surface of the side wall of the cover 12.
) And the ball 40. The holding piece 48 is provided at a position where it does not come into contact with the tip of the receiving piece 29 when the distance between the receiving piece 29 and the receiving piece 27 is increased.
Further, a notch groove 29 a for allowing the push rod 41 to escape is formed at the tip of the receiving piece 29 so that the movement of the push rod 41 is not hindered when the distance from the receiving piece 27 is increased. The ball 40 is pressed against the link body 35 by the above-described spring force of the return spring 42, and the link body 35 is kept in a state where the operation portion 33b is pushed forward.

A through hole 35 is formed in the one end of the link body 35.
b is formed, and one end of the drawstring 51 is inserted and fixed in the through hole 35b. The drawstring 51 is guided through a guide tube 50 fixed to the bottom of the body 11, and is drawn out of the body 1 through an outlet 53 opened on the front surface of the body 1. A ring 52 as an operation unit is fixed to one end of the drawstring 51, and the drawstring 51 can be extended by connecting another string to the ring 52.

With the above-described configuration, when the operating portion 33b is pushed, the link body 35 rotates around the shaft pin 35a and is pushed by the link body 35, so that the cam body 33c moves straight back. Also, when the pulling string 51 is pulled, the link body 35 rotates around the shaft pin 35a and is pushed by the link body 35 so that the cam body 33c moves straight back. Here, when the pull string 51 is pulled, the operation unit 3
Since the force from the drawstring 51 does not act on 3b, the force acting on the drawstring 51 is smaller than when the operation portion 33b is pulled.

The pulling string 5 is applied without applying a pressing force to the operating portion 33b.
In a state in which the push rod 1 is not pulled, the tip of the push rod 41 does not protrude from the front surface of the cover 12 and is inserted into the insertion hole 17. That is, in this state, the plug P can be connected to the outlet. On the other hand, when a pressing force is applied to the operation unit 33b or the pull cord 51 is pulled, the link 3
5 rotates and the cam body 33c moves straight. At this time, the pusher 37 receives the force from the link body 35 and moves forward against the spring force of the return spring 42, and the tip of the push rod 41 projects from the front surface of the cover 12. Here, since the levers 25 and 44 rotate with the rectilinear movement of the cam body 33c, the holding force of the plugs P against the contacts by the receiving pieces 27 and 29 is weakened. As described above, the plug P is pushed by the push rod 41, and the plug P is disconnected from the outlet. That is, without pulling out the plug P from the outlet, the operating body 33 is
The plug P can be pulled out simply by pushing it in. Also,
Since the notch 19 is formed in the cover 12, a space for inserting a finger when pushing the operation unit 33b with a finger can be secured, and the pushing operation of the operation unit 33b is facilitated.

As described above, when the plug P is removed by pushing the operating portion 33b or pulling the pull cord 51, the link body 35 is held so that the cam body 33c and the link body 35 are maintained at the positions. A stopper (not shown) is formed on the inner side surface of the side wall of the body 11. In other words, when the plug P is removed by operating the operation portion 33b or the drawstring 51, the cam piece 33c and the link body 35 are kept at the same position, so that the receiving piece 29 is kept away from the receiving piece 29. In addition, the tip of the push rod 41 is kept in a state of protruding from the body 1.
When the plug P is inserted in this state, the push rod 41 is pushed by the plug P, whereby a force is transmitted to the link body 35, and as a result, the locked state of the link body 35 by the stopper is released, and the cam body 33c and the link The body 35 can be returned to the original position. That is, since the receiving pieces 27 and 29 are separated from each other when the plug P is inserted into the outlet, the plug P can be inserted with a small force. Further, when the locking state of the link body 35 by the stopper is released, the contact of the plug P is held by the receiving pieces 27 and 29 by the spring force of the holding springs 26 and 47, and at this time, the lever 25, The cam body 33c is moved forward by the force received from 44.

In this embodiment, the link 35 is connected to the lever 2
Since it is arranged between the plugs 5 and 44 and the blade insertion port 16, the container 1 having the same thickness as a conventional outlet can be used.

In the configuration of the present embodiment, the distance between the receiving pieces 27 and 29 for holding the contact of the plug P is variable, so that the cross section of the contact may be any shape. When the contact of the plug P is a flat blade, the contact of the plug P may be a contact pin having a round cross section.

(Second Embodiment) In the first embodiment, an example is shown in which two levers 25 and 44 for moving the two receiving pieces 29 separately are used. However, in this embodiment, FIG.
As shown in FIG.
The example which moves is shown. In this embodiment, the lever 25 is disposed between the link body 35 and the blade insertion port 16. Further, in the following embodiments, the drawstring 51 is not provided, and only the operation body 33 to be pushed is provided.

The container 1 in the present embodiment comprises a body 11
The body 11 and the cover 12 are connected to the assembling cylinders 13 provided at the respective corners of the inner peripheral surface of the cover 12 by using assembling screws 15 which are screwed into the assembling holes 14 at the respective corners of the cover 12. .

Four corners of the opening surface of the body 11 are
The middle plate 21 mounted on the is mounted. The intermediate plate 21 is fixed to the body 11 by the assembling screws 15 when the body 11 and the cover 12 are connected. Operation hole 18 in middle plate 21
A notch window 22 is formed in a portion corresponding to. Middle plate 21
The front surface of the shaft projection 23 and a plurality of positioning projections 24
And a shaft pin 23 a having a smaller diameter than the base side is formed at the tip of the shaft protrusion 23. The shaft pin 23a is inserted into a shaft hole 25b provided in the plate-like lever 25. The lever 25 is supported by the base of the shaft projection 23 and the positioning projection 24. Spring seat pieces 21a and 25a are formed at one end of the middle plate 21 and the lever 25, respectively.
A holding spring 26 made of a coil spring is mounted between the two spring seats 21a and 25a. The holding spring 26 urges the lever 25 counterclockwise around the shaft pin 23a in FIG. A holding rib 12a (see FIG. 9) is provided at an appropriate position on the rear surface of the front wall of the cover 12 so as to prevent the lever 25 from floating from the middle plate 21.

Two receiving pieces 27 corresponding to the respective blade insertion openings 16 provided in the cover 12 are arranged on the middle plate 21, and the base of the receiving piece 27 is held by the positioning projection 24. An insertion hole 28 is formed between the positioning protrusions 24 for positioning the two receiving pieces 27. A terminal plate 27a is formed continuously and integrally at the base of the receiving piece 27, and a terminal screw 27b with a washer is screwed to the terminal plate 27a. Here, the terminal plate 27a is fixed to the middle plate 21 by a fixing tool (not shown) such as a rivet.

The receiving piece 2 held on the middle plate 21
A receiving piece 29 for holding the contact of the plug together with 7 is attached to the lever 25. That is, a fixing rib 30 is protruded from the front surface of the lever 25, and the base of the receiving piece 29 is held by the fixing rib 30, and the receiving piece 29 is fixed to the fixing rib 30 using a fixing tool 31 such as a rivet. Is done. Two receiving pieces 29 are fixed to the lever 25, and a rectangular hole 32 through which one of the receiving pieces 27 is inserted is formed between the fixing ribs 30. The other receiving piece 27 is arranged so as to face one side edge of the lever 25 (the right side edge in FIG. 7). As described above, the lever 25
Is urged counterclockwise in FIG. 7 by the holding spring 26, so that the receiving piece 29 attached to the lever 25
Comes closer to the receiving piece 27 by the spring force of the holding spring 26.

In the lever 25, the vicinity of one end where the spring seat piece 25a is provided is formed to have a narrower width than the vicinity of the other end where the fixing rib 30 is provided, thereby forming a pressing portion 25c. A cam surface 33a provided on an operation body 33 arranged corresponding to the operation hole 18 of the cover 12 abuts on the pressing portion 25c. The operation body 33 has a shape substantially matching the operation hole 18.
3b, a cam body 33 extended to the rear side of the operation unit 33b
c are continuously and integrally provided, and a cam surface 33a is formed on one side surface of the cam body 33c. The cam surface 33a is an operation unit 33b
The cam body 33c is an inclined surface formed so as to taper toward the tip end side of the cam body 33c.
When an external force is applied to push the lever 25 into the body 1, the pushing portion 25c of the lever 25 is pushed by the cam surface 33a, and the lever 25
Rotates clockwise as shown in FIG. 8A against the spring force of the holding spring 26. That is, as shown in FIG. 8B, the receiving piece 29 provided on the lever 25 is
Move to increase the distance to 7. As a result, the holding force of the plug held between the receiving pieces 27 and 29 with respect to the contact is reduced, and the plug can be easily pulled out with a small force. As shown in FIG. 9, the operation body 33 is guided by the guide cylinder 34 extending from the periphery of the operation hole 18 to the inside of the cover 12 in the cover 12 and the above-described stepped portion 20 so as not to move. Also, a protrusion (not shown) formed on the inner peripheral surface of the guide cylinder 34
And a protrusion (not shown) provided on the cam body 33c of the operation body 33
Is locked so that the operating body 33 does not fall out of the body 1.

One end of a link body 35 rotatably disposed in the body 11 is connected to a distal end surface of a cam body 33c of an operating body 33 inserted into the body 11 through a cutout window 22 formed in the middle plate 21. Corresponding. A pusher 37 is attached to the other end of the link body 35. In this embodiment, only one presser 37 is attached to the link body 35. The cam body 3 of the operating body 33 is provided at one end of the link body 35.
A pair of receiving ribs 38 into which 3c is inserted protrude, and the operating body 33 is prevented from coming off from the link body 35 by both receiving ribs 38.

However, when no pressing force is applied to the operating body 33, the tip of the push rod 41 does not protrude from the front surface of the cover 12, but is inserted into the insertion hole 17, and the operating body 33 is inserted. When a pressing force is applied to the plug 33, the plug P can be removed by rotating the lever 25 and the link body 35.

In the present embodiment, the cam body of the operation body 33 is maintained so that the operation body 33 is kept pushed into the operation hole 18 when the plug P is removed by pushing the operation body 33. A stopper 33d protrudes from one surface of 33c. The stopper 33d is locked at the opening edge of the guide cylinder 34 when the operating body 33 is pushed. Therefore, when the operating body 33 is pushed in, the tip of the push rod 41 is kept in a state of protruding from the body 1. When the plug P is inserted, a force is transmitted to the link body 35 by pushing the push rod 41 by the plug P, and the locked state of the operation body 33 by the stopper 33d is released, and the operation body 33d is returned to the original position. Return. Other configurations and operations are the same as those of the first embodiment.

(Third Embodiment) In the first embodiment, the receiving pieces 27 and 29 are connected to the rotation center of the lever 25 (the shaft pin 2).
3a), they are arranged side by side in the circumferential direction of the arc centered on the center. However, in this embodiment, as shown in FIG. 10, the receiving pieces 27, 29 are arranged in the radial direction of the arc centered on the rotation center of the lever 25.
Are arranged side by side. The other configuration is basically the same as that of the second embodiment.
The lever 25 rotates clockwise in FIG. 11 as shown in FIG. At this time, one receiving piece 27 attached to the lever 25 moves with respect to the other receiving piece 29 without substantially changing the distance between the receiving pieces 27 and 29 as shown by a two-dot chain line in FIG. I do. In other words, the displacement of the receiving pieces 27, 29 reduces the holding force of the contacts of the plug by the receiving pieces 27, 29. Here, since the receiving piece 27 rotates around the shaft pin 23a, the distance between the opposing surfaces of the receiving pieces 27 and 29 is made different depending on the position, so that the distance between the receiving pieces 27 and 29 when the lever 25 rotates. Is kept small. Other configurations and operations are the same as those of the second embodiment.

The structure of this embodiment can be used when the contact of the plug is a flat blade. Therefore, when the contacts of the plug are three poles, two poles are flat blades, and one pole is a contact pin having a round cross section (for example, for a single-phase two-wire type with a grounding pole). Case), the configuration of the present embodiment is adopted for the blade, and the second
The configuration of the embodiment may be adopted.

(Fourth Embodiment) In each of the above-described embodiments, each pair of receiving pieces 27, which sandwich the contact of the plug,
Only one of the 29 was moved,
As shown in FIG. 12, not only the receiving piece 27 but also the receiving piece 2
9 may also be attached to the rotatable lever 44. In this configuration, since both the receiving pieces 27 and 29 are movable, the terminal plate 45 is provided independently of the receiving pieces 27 and 29, and a part of the receiving piece 29 is elastically contacted with the terminal plate 45. Further, cam surfaces 33a are formed on both side surfaces of a cam body 33c of the operating body 33 so that both levers 25 and 44 can be rotated together when the operating body 33 is pressed.

The receiving piece 27 has a holding hole 4 provided in the lever 44.
4a, and is held by the lever 44 by a fixing rib 46 provided on the rear surface side of the lever 44. Also, the lever 44
Is a shaft hole 4 into which the shaft pin 23a is inserted, similarly to the lever 25.
4b, and a pusher 44c with which the cam surface 33a of the operating snapper 33 comes into contact. Further, the lever 44 has an insertion window 44d through which the push rod 41 is inserted between the holding holes 44a.
Are formed.

In the above-described configuration, both levers 25 and 44 rotate together and move away from each other as shown in FIG. As a result, the amount of change in the distance between the receiving pieces 27 and 29 with respect to the pressing amount of the operating body 33 can be made larger than in the above-described embodiment. Other configurations and operations are the same as those of the first embodiment. In the illustrated example, similarly to the first embodiment and the second embodiment, when the cam body 33c is pushed in, the receiving pieces 27 and 2 are pressed.
Although the distance between the receiving pieces 27 and 29 is configured to be widened, the receiving pieces 27 and 29 are moved without substantially changing the distance between the receiving pieces 27 and 29 as in the third embodiment. Is also possible.

In the above example, the holding springs 26, 4
7 causes the levers 25 and 47 to receive the receiving piece 2
9 is applied only in the direction of approaching the receiving piece 27, but when the cam body 33c is not pushed in, the spring force acts in the direction of approaching the receiving piece 29 to the receiving piece 27, and the cam body 33c is actuated. When the receiving piece 29 is pushed in, the spring force acts in a direction to separate the receiving piece 29 from the receiving piece 27,
A configuration using a reversing spring may be employed. That is, FIG.
As shown in FIG. 4, one end of a reversing spring 49, which is a coil spring, is held at one end in the longitudinal direction of each lever 25, 44, and the other end of the reversing spring 49 is held on the inner peripheral surface of the body 11. deep. When the push rod 41 is pushed into the body 1, a rotational force acts on each of the levers 25 and 44 from the link body 35, and the direction of the rotational force is changed when the cam body 33c is pushed. , 44 are pressed against the link body 35 so as to be in the opposite direction to the rotation.
Is provided. A pressing surface 35c is formed on the pressing protrusion 35d so as to be tapered toward the distal end. The pressing surface 35c is opposed to the cam surface 33a of the operating body 33, and both ends of each of the levers 25 and 44 are formed. It is located in.

That is, as shown in FIG.
When the force is applied to the lever 25 from the cam surface 33a by moving c straight, the lever 25 moves rightward in FIG. 15, and when the force is applied to the lever 25 from the pressing surface 35c of the link body 35, the lever 25 moves leftward in FIG. The lever 25 moves. Here, the position where the spring length of the reversing spring 49 is the shortest is the lever 25 by the cam surfaces 33a and 35c.
Is set at an intermediate position of the moving range, the lever 25 moves rightward beyond the intermediate position when the cam body 33c is pushed in, so that the spring force of the reversing spring 49 acts rightward. When the lever 25 receives a force from the link body 35, the lever 25
Moves to the left beyond the intermediate position, so that the spring force of the reversing spring 49 acts leftward. If such a so-called snap action is used, a force for holding each state becomes larger than a force required for operation, and an operation feeling is improved. In addition, a stopper for holding the position of the link body 35 as described above. Also becomes unnecessary.

In each of the above embodiments, the outlet is directly attached to the wall or the outlet is used as a power strip. However, if a different shaped body is used, the outlet may be embedded in the wall and used. It is also possible to adopt.

[0045]

According to the first aspect of the present invention, there are provided a pair of receiving pieces arranged opposite to each other so as to sandwich each contact of the plug;
A spring is biased in a direction connected to at least one of the two receiving pieces corresponding to each contact so as to make the relative position of the two receiving pieces variable and to increase the holding force of the contact by the two receiving pieces. An opening / closing mechanism section, and an operating body having an operating section exposed to the outside of the body and operating the operating section to operate the opening / closing mechanism section in a direction to weaken the holding force of the contact by the two receiving pieces . The opening and closing mechanism for each contact
A device coupled to at least one of the corresponding two receiving pieces
Lever pivotally attached to the body and two receiving pieces
The lever in a direction to increase the pinching force of the contact by the
A holding spring is provided, and the operation body moves straight by operating the operation unit.
It has a cam section that moves, and the cam section receives two rectilinear movements.
Rotation of the lever in the direction to reduce the pinching force of the contact by the piece
The farther away from the operation part, the more the movement becomes
A cam surface, which is an inclined surface formed so as to be
In addition, move the tip from the body at the site corresponding to the plug
The pusher to be moved and the tip of the pusher in conjunction with the straight movement of the cam.
And a link body projecting from the body,
At least one of the two receiving pieces for holding each contact of the plug is moved in conjunction with the operation of the operating body to weaken the holding force of the contact by the receiving piece, so that a large force is required when removing the plug. This is advantageous in that the operation of removing the plug becomes easy. In addition, the operation
A lever that converts the straight movement of the cam body due to the work into rotational movement
And a spring that biases the lever to increase the pinching force of the contact
The opening / closing mechanism is configured with a small number of parts using springs
Can be provided at relatively low cost.
The advantage is that In addition, the pusher can be
Push the plug away from the body by projecting it from the body.
The contact of the plug can be
The pinching force and clamp the plug with the pusher.
Pulling the plug away from the body by pulling it away from the body
Advantages of making it easier to unplug
There is.

[0046]

[0047]

According to a second aspect of the present invention, in the first aspect of the present invention, the link body is pivotally attached to the body, and the pusher is rotatably connected to the link body. Since the pusher is rotatably connected to the pusher, it is possible to move the pusher back and forth so as not to incline with respect to the surface of the container,
There is an advantage that when the operating body is operated, the plug is pushed straight, and the force applied to the operating body can be efficiently acted as the plug removing force.

The third aspect of the present invention provides the first or second aspect.
In the invention of the second aspect , each of the two receiving pieces corresponding to each contact is arranged so as to be arranged in the circumferential direction of one arc centered on the center of rotation of the lever, and each of the receiving pieces is moved along with the straight movement of the cam body. The two receiving pieces corresponding to the contacts move in a direction to increase the distance between each other, and the pinching force between the receiving pieces is reduced by increasing the distance between the receiving pieces. It can be adopted regardless of the shape.

The fourth aspect of the present invention is the first or the second aspect.
In the invention of the second aspect , each of the two receiving pieces corresponding to each contact is arranged so as to be arranged in a radial direction of one arc centering on the rotation center of the lever, and each of the receiving pieces is associated with the straight movement of the cam body. The two receiving pieces corresponding to the contacts move to positions where they do not face each other, and the pinching force is reduced by shifting the positions of the receiving pieces instead of changing the distance of the receiving pieces. It can be used when a flat contact is provided.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of the present invention.

FIG. 2 is an operation explanatory view of the above.

3A and 3B show the same as above, wherein FIG. 3A is a cross-sectional view and FIG.

FIG. 4 is a transverse sectional view of the same.

FIG. 5 is an operation explanatory view of the above.

FIG. 6 is a front view of the same.

FIG. 7 is an exploded perspective view showing a second embodiment of the present invention.

FIG. 8 is an operation explanatory view of the above.

FIG. 9 is a sectional view of the above.

FIG. 10 is an exploded perspective view showing a third embodiment of the present invention.

FIG. 11 is an operation explanatory diagram of the above.

FIG. 12 is an exploded perspective view of a main part showing a fourth embodiment of the present invention.

FIG. 13 is a sectional view of a main part of the above.

FIG. 14 is a perspective view of a main part showing another configuration example of the opening / closing mechanism used in the present invention.

FIG. 15 is an explanatory diagram of the operation of the above.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 body 23 shaft projection 23a shaft pin 25 lever 26 holding spring 27 receiving piece 29 receiving piece 33 operating body 33b operating section 35 link body 35a shaft pin 37 presser 39 ball receiving hole 40 ball 42 return spring 44 lever P plug

Claims (4)

(57) [Claims] A pair of receiving pieces disposed opposite to each other so as to sandwich each contact of the plug; and a pair of receiving pieces connected to at least one of two receiving pieces corresponding to each contact.
An opening / closing mechanism for making the relative positions of the receiving pieces variable and for urging a spring in a direction to increase the holding force of the contact by the two receiving pieces, and an operating part exposed to the outside of the body; with the two receiving and operating body for operating the opening and closing mechanism portion in a direction to weaken the holding force of the contacts by piece by operating the parts in the device body, the opening and closing mechanism, said respective contact
Connected to at least one of the two receiving pieces corresponding to the child
A lever rotatably attached to the body,
The direction in which the pinching force of the contact
A holding spring for urging the bar, wherein the operating body is
A cam section that moves straight by operating the operation section is provided.
The linear movement is carried out between the two
Converted to lever rotation to reduce holding force
An inclination formed so that the distance from the operation unit is reduced
A cam surface, which is a slope, is formed.
A pusher for moving the tip from the body at a position where
The tip of the pusher protrudes from the body in conjunction with the
An outlet characterized by comprising a link body to be connected. 2. The link body is pivotally attached to a body, and the push body is
The outlet according to claim 1, wherein the child is rotatably connected to the link body . 3. The two receiving pieces corresponding to each contact are provided with
The circumference of one arc around the center of rotation of each lever
Are arranged in a line in the same direction as the cam body moves straight.
The two receiving pieces corresponding to each contact extend the distance from each other
2. The moving device according to claim 1, wherein
Item 2. The outlet according to item 2 . 4. Each of the two receiving pieces corresponding to each contact is provided with
The radius of one arc around the center of rotation of each lever
Are arranged in a line in the same direction as the cam body moves straight.
Two receiving pieces corresponding to each contact do not face each other
2. The method according to claim 1 , wherein the moving means moves to a position.
The outlet described in 2 .