JP3451844B2 - Tap with ground - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grounding tap which is inserted into an outlet or the like to branch a plurality of power sources and grounds.

[0002]

2. Description of the Related Art FIG. 9 shows the configuration of an example of a conventional tap. In FIG. 9, a rectangular notch 102 is formed on one side of a tap body 101 formed of plastic in a thin box shape.
Is provided. A rotator 103 is fitted in the cutout portion 102, and the rotator 103 has shafts 1 provided on both side surfaces.
It is rotatably supported by the tap body 101 via 04. A pair of blades 105 is provided on one outer side of the rotator 103.
Are fixed, and one side of the inside is a cylindrical surface 106.

A pair of blade insertion holes 10 is provided on each of the other three sides of the tap body 101 on which the rotator 103 is provided.
7 are provided, and blade receiving portions 109 are fixed to the tap body 101 at positions facing the blade insertion holes 107, respectively. One end of a lead wire 108 is connected to the base ends of a pair of blades 105 fixed to the rotator 103, and the lead wire 108 passes through the rotator 103 from the cylindrical surface 106 to the tap body. It has been pulled out into 101. The pair of lead wires 108 are connected to the three pairs of blade receiving portions 109 in the tap body 101, respectively.

[0004]

In the conventional tap configured as described above, when the blade 105 is connected to the outlet on the power source side, the tap body 101 is rotated by the rotator 1.
For example, it can be rotated by 90 degrees in both directions of 03. Moreover, since the tap body 101 is thin, it can be placed in a narrow space. However, when the outlet on the power source side is provided with the ground terminal and the rotator 103 on the tap body 101 side is also provided with the ground blade connected to the ground terminal, the lead wire has three cores. When the lead wire of three cores is pulled out from the cylindrical surface 106 of the rotator 103 and connected to the blade receiving portion, there is a problem that the rotator 103 is difficult to rotate due to the rigidity of the lead wire. Further, since the movement of the lead wire is large, the lead wire itself and the connecting portion of the lead wire are easily damaged. Further, since the movement of the lead wire is large, the lead wire itself and the connecting portion of the lead wire are easily damaged. Further, the lead wire is the cutout portion 1 of the tap body 101.
Since it was exposed from 02, it was not preferable in appearance.

The present invention has been made in view of the above circumstances, and provides a grounded tap which is capable of smoothly rotating the rotator even when both the power source and the ground are connected. The purpose is to provide.

[0006]

In order to achieve the above object, the grounding tap according to the invention of claim 1 has a plurality of blade receiving portions.
Has a notch on the side wall where the blade receiving part is not formed
Is formed and has a bearing inside in the vicinity of the notch.
With a tap body; provided in the notch and tapped
2 blades and 1 arm from the surface exposed to the outside of the body
The blade is protruding and fixed, and these two blades and
The shaft projects from both sides orthogonal to one ground blade
This shaft is supported by the bearing of the tap body.
A rotator rotatably supported on the tap body by doing so;
Connect one end to two blades or ground blades, and
Connect the plug blade or the ground blade and the blade receiving part electrically.
With three lead wires wired as follows;
Two of the three lead wires at the tap
Is inserted into one of the bearings and pulled into the tap body.
The other one of the lead wire blades and one shaft
Characterized by being passed through and drawn into the tap body
It

In the grounded tap of the second aspect of the invention, the rotatable angle of the rotor is 180 degrees.

According to the third aspect of the present invention, the grounding tap is provided with a holding member for holding the turning angle of the rotator at a predetermined angle.

According to another aspect of the present invention, in the grounding tap, the holding member for the turning angle of the rotator is a convex portion or a concave portion that engages with a concave portion or a convex portion formed at a predetermined position on the outer periphery of the shaft portion. And an elastic member supported by the tap body.

According to the first and second aspects of the present invention, lead wires for connecting the blade and the ground blade to the blade receiving portion through the cylindrical shaft portion that rotatably supports the rotator on the tap body. Since the above is provided, the rotation resistance of the rotor can be reduced.

In the third and fourth aspects of the invention, since the rotation angle of the rotator is held at a predetermined angle by the holding member, the tap can be stably inserted and held in the outlet.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a tap with ground according to the present invention will be described below with reference to the drawings.

FIG. 1 is a transverse sectional view showing the structure of an embodiment of the present invention, FIG. 2 is a longitudinal sectional view of FIG. 1, FIG. 3 is a side view of FIG. 1, and FIG. 4 is a bottom view of FIG. 5 is a front view of FIG. 1, and FIG. 6 is an external perspective view showing the structure of the rotator of FIG. In FIGS. 1 to 6, a tap body 1 formed of a plastic in a box shape is composed of upper and lower two parts 1a and 1b, which are integrally molded products, connected and fixed by three screws 2. The screw 2 is inserted from the lower surface into a screw mounting hole 3 formed penetrating to the lower part 1b at three positions, and is screwed into a screw hole 4 formed at a position facing the upper part 1a.

One side of the upper part 1a is bulged through a stepped portion 1c, and three pairs of blade receiving portions 5 are provided in the bulged portion 1d.
6 and 7 are stored. The blade receiving parts 5 and 7 are the tap main body 1
Are arranged so as to face side walls parallel to each other, and the blade receiving portion 6 is arranged so as to face side walls perpendicular to the side walls. The blade receiving parts 5, 6 and 7 are provided with three pairs of blade receiving metal fittings 8, 9 and 10, respectively. As shown in FIG. 2, the blade receiving metal fittings 8 and 9 are on the upper stage, and the blade receiving metal fitting 10 is It is located in the lower row. Further, on the side wall of the tap body 1, the blade receiving portion 5,
Plug blade insertion holes 11, 12, and 13 are formed at positions facing the blade receiving metal fittings 8, 9 and 10 respectively provided in 6 and 7.

A notch portion 1e having a U-shaped cross section is formed on the side opposite to the blade receiving portion 6 of the tap body 1, and a rotator 14 is rotatably housed in the notch portion 1e. ing. The rotator 14 is formed of thermosetting resin in a box shape, and the surface facing the inner surface of the cutout portion 1e has a semi-cylindrical shape. Further, it is exposed to the outside of the tap body 1 of the rotator 14 1
Two plug blades 15 and one ground blade 16 are fixed to the surface so as to project in a perpendicular direction. A cylindrical shaft portion 17 is concentrically projected and fixed to both side surfaces of the rotator 14, and the shaft portion 17 is rotatably supported by a bearing 18 inside the tap body 1.

One shaft portion 17a has one end having one end
The lead wire 19a connected to 5a is inserted, and the other end of the lead wire 19a is sequentially connected to the blade receiving metal fittings 8 provided in the blade receiving portions 5, 6, and 7 at three locations. Further, a lead wire 19b having one end connected to the other blade 15b is inserted through the other shaft portion 17b.
The other end of is connected in sequence to blade receiving fittings 9 provided on the blade receiving portions 5, 6, and 7 at three locations. Further, one shaft portion 17a has a lead wire 1 whose one end is connected to the ground blade 16.
9c is inserted therethrough, and the other end of the lead wire 19c is provided with blade receiving metal fittings 10 respectively provided at the three blade receiving portions 5, 6 and 7.
Are connected in sequence.

As shown in FIG. 2, three recesses 20a, 20b, 20c are formed on the outer circumference of the shafts 17a, 17b on the same circumference. The recess 20a is located on the radius of the shaft portion 17 perpendicular to the blade 15, the recess 20a is also located on the radius in the parallel direction, and the recess 20c is located on the radius of 45 degrees. A leaf spring 21 as an elastic member is provided in the tap body 1. Leaf spring 2
As shown in FIG. 7, a convex portion 22 is provided in the center of FIG. 1, and both ends are supported by boss portions 23 integrally formed on the inner surface of the tap body 1 so as to contact the concave portion 20 of the shaft portion 17. It has become.

In the above structure, when the rotator 14 is rotated to engage the convex portion 22 of the leaf spring 21 with the concave portion 20a of the shaft portion 17, the tap body 1 with respect to the plug blade 15 and the ground blade 16 Is at a right angle. If the blade is inserted into an outlet provided on the wall surface in this state, the tap body 1 becomes parallel to the wall surface, and space saving is achieved. Further, when connecting to a tap placed on the floor surface, the tap body 1 can be placed parallel to the floor surface by engaging the convex portion 22 of the leaf spring 21 with the concave portion 20b of the shaft portion 17. . Furthermore, FIG.
When the blade is inserted into the floor outlet 31 that is rotatably installed on the floor surface as shown in FIG. 3, if the floor outlet 31 is pulled out at an angle of 45 degrees with respect to the floor surface, By engaging the convex portion 22 of the leaf spring 21, the tap body 1 can be placed parallel to the floor surface as shown in FIG.

According to this embodiment, the lead wire 19 for connecting the blade 15, the ground blade 16 and the blade receiving portions 5, 6, 7 to each other.
Since it is drawn into the tap body 1 through the tubular shaft portion 17 of the rotator 14, the rotator 14 can be smoothly rotated even if the number of the lead wires 19 is three. Further, since the lead wire 19 is housed in the tap body 1 and is not exposed to the outside, the appearance is also good.

In the above embodiment, the case where the number of blade receiving portions is three has been described, but the number of blade receiving portions is not limited to three and may be plural. In addition, the leaf spring 21 that regulates the rotation position of the rotator 14
The holding member such as may be omitted, and the rotation of the rotator 14 may be restricted by the frictional force between the shaft portion 17 and the bearing 18. In this case, the rotatable angle of the rotator 14 is usually 180 degrees. In addition, the concave portion 20 of the shaft portion 17 has a convex shape, and the convex portion 2 of the leaf spring 21 is
2 may be concave.

[0021]

EFFECTS OF THE INVENTION The invention according to claim 1 and claim 2 of the present application
According to the method, a rotatably supporting the rotator is provided on the tap body.
Through the pair of cylindrical shafts, two blades and a ground blade and a blade
Since the lead wires for connecting to the receiving parts are arranged,
Rotational resistance of the pendulum can be reduced. Furthermore, on the other hand
Connect one plug blade, ground blade and blade receiving part to the shaft part of
Insert the lead wire through the
And the lead wire that connects the blade and the grounding blade.
Since it is arranged so that even if there are three lead wires, the rotator
Can be smoothly rotated. In addition, each lead wire
It is stored inside the main unit and is not exposed to the outside, so the appearance
It will be good.

According to the inventions of claims 3 and 4, since the holding member for holding the turning angle of the rotator at a predetermined angle is provided, the tap body can be held at an appropriate angle depending on the mounting position of the tap. You can

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing the configuration of an embodiment of a tap with ground according to the present invention.

FIG. 2 is a vertical cross-sectional view of FIG.

FIG. 3 is a side view of FIG.

FIG. 4 is a bottom view of FIG.

5 is a front view of FIG.

FIG. 6 is an external perspective view showing the configuration of the rotator shown in FIG.

FIG. 7 is a perspective view showing the configuration of the leaf spring shown in FIG.

FIG. 8 is a side view showing a state in which the grounding tap shown in FIG. 1 is inserted into a floor outlet.

FIG. 9 is a perspective view showing the configuration of an example of a conventional tap.

[Explanation of symbols]

1: Tap body 5, 6, 7: Blade receiving portion 14: Rotator 15: Plug blade 16: Ground blade 17: Shaft portion 19: Lead wire 20: Recessed portion 21: Leaf spring (elastic member) 22: Convex portion

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) H01R 31/02 H01R 13/46 302 H01R 13/652 H01R 35/04

Claims (4)

(57) [Claims] 1. A blade receiving portion is formed by having a plurality of blade receiving portions on a side wall.
A notch is formed on the side wall that is not
A tap body having a bearing inside the side; provided inside the notch and exposed to the outside of the tap body
Two stopper blades and one ground blade protrude from the exposed surface.
Are fixed, and these two blades and one ground
The shafts are fixed by protruding from both sides orthogonal to the blade.
This shaft is supported by the bearing of the tap body,
-Up turning member rotatably supported by the body and, at one end 2
Connected to a book blade or ground blade, and
Or wire to electrically connect the ground blade to the blade receiver.
A grounded tap comprising : three lead wires; two of the three lead wires are attached to one bearing.
While being inserted and drawn into the tap body,
One lead wire blade, tapped by being inserted into one shaft part
A grounded tap that can be pulled into the body . 2. The tap with ground according to claim 1, wherein the rotatable angle of the rotator is 180 degrees. 3. The grounding tap according to claim 1, further comprising a holding member for holding the turning angle of the rotator at a predetermined angle. 4. The holding member for the turning angle of the rotator has a convex portion or a concave portion that engages with a concave portion or a convex portion formed at a predetermined position on the outer periphery of the shaft portion, and is supported by the tap body. The grounding tap according to claim 3, which is an elastic member.