JPH02215066A - Insert plug - Google Patents

Abstract

PURPOSE:To prevent a movable body from being removed from plug edges and improve the workability at the time of assembling by fixing the plug edges to the movable body. CONSTITUTION:Plug edges 12 have notches 12a on both sides, and the plug edges 12 are protruded forward on a movable body 11 so that both sides of notch grooves 13a of the movable body 11 are coupled. Since both sides of the notch grooves 13a are coupled with the notches 12a of the plug edges 12, the plug edges 12 are firmly held on the movable body 11. Through boles 12b are bored on the plug edges 12 at positions corresponding to notch grooves 13a, receiving holes 11a are formed on the movable body 11, and the plug edges 12 are fixed to the movable body 11 by inserting fixing tools 15 into the receiving holes 11a via the through holes 12b. The plug edges 12 are prevented from being removed from the movable body 11 at the time of assembling, handling is facilitated, and workability is improved.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a plug that is used by being inserted into an outlet.

[Conventional technology]

Conventionally, this type of plug has been equipped with a plug blade block 10 having a pair of plug blades 12, a terminal fitting 21 to which an electric wire 1 is connected, as shown in the sixth factor and FIG. It is provided with a support body 20 that holds the plug blade block 10 so as to be rotatable around a rotation axis 14 along the direction in which the blades 12 are lined up, and the plug blade 12 can be freely rotated with respect to the terminal fitting 21. A combination is known (Japanese Patent Application Laid-Open No. 61-1
(See Publication No. 28481). The blade block 10 includes a movable body 11 made of synthetic resin that holds a pair of blades 12, and both blades 12 are attached to the movable body 1.
It is fitted against 1.

[Problem to be solved by the invention]

In the above configuration, after the plug blade 12 and the terminal fitting 21 are connected by the rotation shaft 14 made of a caulking pin, the plug blade 12 is connected to the movable body 1.
1 and then attaching the terminal fitting 21 to the support body 20, there is a problem in that the plug blade 12 tends to come off from the movable body 11 during assembly, resulting in poor workability during assembly. The present invention aims to solve the above problems, and by fixing the stopper blade to the movable body, the movable body is prevented from coming off the stopper blade, and workability during assembly is improved. This is an attempt to provide a plug-in plug.

[Means to solve the problem]

In order to achieve the above object, the present invention includes a blade block in which a pair of blades protrudes from a movable body, a pair of terminal fittings that are connected to each blade in a short manner, and a direction in which the blades are lined up. A support body is provided to hold the blade block so as to be rotatable around a rotation axis along the axis of rotation, and both blades are fixed to the movable body using a fixture. Alternatively, fitting pieces may be provided protruding from both plug blades, and the fitting pieces may be press-fitted into terraced fitting holes in the movable body.

[Effect]

According to the above configuration, since the blades are fixed to the movable body using a fixture, the blades do not come off from the movable body during assembly, and the blade block can be handled as one component. As a result, handling becomes easier and work efficiency improves. In addition, if the fitting piece protruding from the plug blade is press-fitted into the fitting hole provided in the movable body, the plug blade can be fixed to the movable body without using any other parts. This further improves work efficiency.

[Embodiment 1] As shown in FIGS. 1 to 3, a blade block 1 has bases of blades 12 held on both sides of a movable body 11, respectively.
0, and a support 2 that rotatably holds the blade block 10.
0, and an outer shell body 30 that covers the periphery of the support body 20. The movable body 11 of the blade block 10 is made of an insulating material such as synthetic resin, and is formed into a shape in which the front side is flat and the rear side is arcuate. There are plug blades 1 on both sides of the movable body 11.
A recess 13 is formed into which the base of 2 fits. A notch groove 13a is formed at a portion of the periphery of the recess 13 on the front side of the movable body 11. The plug blade 12 has notches 12 on both side edges.
a, and the notch groove 1 of the movable body 11 is formed in this notch 12a.
The plug blade 1 is placed in front of the movable body 11 in such a manner that both sides of the blade 3a engage with each other.
2 stands out. In this way, by fitting both sides of the notch groove 13a into the notch 12a of the plug blade 12,
The blade 12 is held against the movable body 11 without wobbling. Furthermore, a through hole 12b is bored in the plug blade 12 at a portion corresponding to the notch groove 13a, and a receiving hole 11a is formed in the movable body 11, and the receiving hole 1 is inserted through the through hole 12b.
The plug blade 12 is fixed to the movable body 11 by inserting the fixture 15 into the movable body 11. Here, as the fixture 15, a tapping screw or a driving stud is used. In the part of the plug blade 12 that corresponds to the side surface of the movable body 11,
The zero-rotation shaft 14 from which the rotation shaft 14 is hammered out is formed in the shape of a large-diameter main shaft 14a with a stop pin 14b protruding from the center, and the main shaft 14a is attached to a terminal fitting 21 provided on a support 20. engage. The blade block 10 is disposed in a storage recess 22 provided at the front of a support 20 made of an insulating material such as synthetic resin. Furthermore, the storage recess 22 is open both forward and up and down. The support body 20 is formed by joining a pair of upper and lower halves 20a and 20b, and a plurality of (four) connecting hooks 23 are provided downwardly protruding from the upper half body 20a. and a connecting hook 23 is attached to the lower half body 20b.
A coupling hole 24 is formed that engages with. One coupling hook 23 is provided on each side of the storage recess 22, and a pair is provided on the rear part of the support body 20, and a pair of coupling hooks 23 are provided on both sides of the storage recess 22.
, 20b are joined at three places, thereby forming both halves 2
0a and 20b are bonded and immersed without lifting at any part. By the way, the support body 20 holds a part of the terminal fitting 21 between the two halves 20a and 20b. The front end of the terminal fitting 21 is exposed on the inner peripheral surface of the storage recess 22, and the rear end of the terminal fitting 21 protrudes from the rear surface of the support body 20. A shaft hole 25 that fits into the main shaft 14a of the rotation shaft 14 of the plug blade block 10 is formed in a portion of the terminal fitting 21 that is exposed inside the storage recess 22. An annular protrusion 25a is formed that protrudes on the side opposite to the movable body 11. The circumferential portion of the spring washer 26 abuts on this protrusion 25a, and the stop pin 14b protruding from the rotating shaft 14 is caulked and fixed to the spring washer 26. That is, the terminal fitting 21 is held between the spring washer 26 and the base of the fitting 12, so that the fitting 12 is rotatably held relative to the terminal fitting 21. The spring washer 26 has a center portion fixed to the stopper blade 12 by a stopper pin 14b.
Since the peripheral portion comes into elastic contact with the protrusion 25a of the terminal fitting 21, the terminal fitting 21 is pressed against the plug blade 12. As a result, a moderate frictional force acts between the plug blade 12 and the terminal fitting 21, and the plug blade 12 can be stopped at an arbitrary position relative to the terminal fitting 21. On the other hand, a terminal portion 21a serving as a crimp terminal is formed at the rear end portion of the terminal fitting 21 protruding from the rear surface of the support body 20. Therefore, by caulking the terminal portion 21a to the electric wire 1, the electric wire 1
is connected to the terminal portion 21a. Each terminal fitting 21
A pair of press-fit pieces 27 are provided at the front and rear intermediate portions of the
is installed protrudingly. The press-fit piece 27 is formed in the shape of an arrowhead,
It is press-fitted into the fixing hole 28 formed in the lower half body 20b. A pair of convex ribs 29 are protruded from the lower half body 20b, and the fixing holes 28 are formed on both sides of each convex rib 29, respectively. As described above, by press-fitting the press-fit pieces 27 into the fixing holes 28, the terminal fittings 21 are fixed to the half body 20b, and each terminal fitting 21 has a plug blade 12 formed integrally with the movable body 11.
Since these are rotatably connected, the blade block 10 can be rotatably connected to the support body 20. The assembly process of the blade block 10 and the support body 20 is summarized as follows. First, as shown in Figure 2(a),
The plug blade 12 and the terminal fitting 21 are rotatably connected, and the second
As shown in Figure (b), the fixture 15 is attached to the movable body 11.
Connect the plug blades 12 using the following. In this way, the terminal fitting 21 and the plug blade block 10 are connected.
As shown in FIG. 2(e), the terminal fitting 21 is press-fitted into the fixing hole 28 of the lower half body 20b. Furthermore, Fig. 2(d)
As shown in FIG.
By connecting these, the blade block 10 can be rotatably connected to the support body 20. In this state, the terminal fm2 provided at the rear end of the terminal fitting 21
Since the terminal portion 1a protrudes to the rear of the support body 20, the electric wire 1 is connected to this terminal portion 21a. Thereafter, as shown in FIG. 3, the connecting portion of the support 20 and the electric wire 1 is covered with an outer shell 3o made of vinyl chloride or the like, and the product is completed. According to the above configuration, in the blade block 1o, the movable body 11 and the blade 12 are connected by the fixture 15, so there is no dispersion of parts during assembly, and moreover, the movable body 11
After the and the plug blades 12 are combined, the plug blade block 10 can be handled as one component, which makes handling of the parts easier and improves work efficiency during assembly.

[Embodiment 2] In Embodiment 1, the plug blade 12 was fixed to the movable body 11 by the fixture 15, but in this embodiment, as shown in FIGS. A fitting piece 12c is provided protruding from a portion of the blade 12 corresponding to the notch groove 13a, and is press-fitted into a fitting hole 11c formed in the notch groove 13a. The fitting piece 12c is formed integrally with the plug blade 12 by cutting and raising. In this way, the movable body 11 and the plug blade 12 are connected by press-fitting the fitting piece 12c into the fitting hole 11c.
As in Example 1, dispersion of parts can be prevented, and
After the movable body 11 and the blade 12 are connected, the blade block 10
It has the advantage that it can be handled as a single part, making it easier to handle the parts and improving work efficiency during assembly.
Furthermore, compared to the case of the first embodiment, the fixture 15 is not required, leading to a reduction in the number of parts.

【Effect of the invention】

As described above, the present invention includes a blade block having a pair of blades protruding from a movable body, and a pair of terminal fittings that are electrically connected to each blade. A support body is provided to hold the blade block so that it can rotate freely around the rotation axis, and the blade is fixed to the movable body using a fixture, which is fixed to the movable body. Since the blades are fixed using a tool, the blades do not come off the movable body during assembly, and the blade block can be handled as one component, making it easier to handle. This has the advantage of improving workability. In addition, if the fitting piece protruding from the plug blade is press-fitted into the fitting hole provided in the movable body, the plug blade can be fixed to the movable body without using any other parts. This has the effect of further improving workability.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of main parts showing Embodiment 1 of the present invention, and FIG.
The figure is a process diagram showing the assembly order of the same blade block and support body as above, FIG. 3 is an external perspective view of the same as above, FIG. A perspective view of the main parts of the same as above,
FIG. 6 is a perspective view showing a conventional example, and FIG. 7 is an exploded perspective view of the same essential parts. 10... Bung blade block, 11... Movable body, lla.
... Receiving hole, llc... Fitting hole, 12... Plug blade, 12
c... Fitting piece, 14... Rotation shaft, 15... Fixture, 2o... Support body, 21... Terminal fitting. Agent Patent Attorney Ishi 1) Chief 7 Figure 3 Figure 4 Figure 6

Claims (2)

[Claims] (1) A plug blade block with a pair of plug blades protruding from a movable body,
It has a pair of terminal fittings that are electrically connected to each of the blades, and a support body that holds the blade block so as to be rotatable around a rotation axis along the direction in which the blades are lined up. ,
An insertion plug characterized in that both of the plug blades are fixed to a movable body by a fixture. (2) a plug blade block with a pair of plug blades protruding from a movable body;
It has a pair of terminal fittings that are electrically connected to each of the blades, and a support body that holds the blade block so as to be rotatable around a rotation axis along the direction in which the blades are lined up. ,
An insertion plug characterized in that fitting pieces are provided protruding from both of the plug blades, and the fitting pieces are press-fitted into fitting holes provided in the movable body.