JPS5832433Y2 - End cap of multiple outlet - Google Patents

Description

[Detailed description of the invention] The present invention relates to an end cap for a multiple outlet, in which an electric wire 2 for connecting the outlet and the power source is attached to the end of a rectangular cylindrical case 1 in which a large number of outlets are arranged. A joint box 3 is provided to connect the casing 1, and an end cap fitted to the end inside the case 1 is buttoned to form a substantially U-shaped protrusion 5 inward from the end cap body 4. An end cap of a multiple outlet outlet characterized in that both ends of a joint box 3 are brought into contact with both ends of a protrusion 5 to form a collar 6 having a surface perpendicular to the direction of protrusion of the protrusion 5. This is related to.

Previously, when joint boxes of different sizes were used, such as for single-phase or three-phase applications, two types of end caps were made to fit on the end of the case to match the size of each joint box. There was a problem that it had to be done.

The present invention has been proposed in view of the above points, and can be commonly used for joint boxes of different sizes for single-phase and three-phase applications, and also reduces the force added to the joint box. To provide a multi-connected outlet end cap for the purpose of acting as a tension stopper.

Embodiments of the present invention will be described in detail below with reference to the drawings.

In the figure, reference numeral 1 denotes a rectangular cylindrical metal case, and the case 1 consists of a lower case body 8 and an upper case cover 7, both of which have a substantially U-shaped cross section.

A large number of outlets are arranged on this case body 8,
Joint boxes 3 are provided at both ends of the case body 8 for connecting these outlets to electric wires 2 from a commercial power supply or to other multiple outlets.

The joint box 3 shown in FIGS. 1 to 3 is for single-phase use and is formed into a substantially rectangular parallelepiped shape, with a wire insertion confirmation hole 31 on the top surface and a cord 12 for connecting to an outlet on the side surface. Electric wire 2 is the lead-out.

Reference numeral 4 denotes an end cap body made of an insulating material such as synthetic resin. This end cap body 4 is fitted to the end inside the case 1, and a part of the outer surface near the center is made thinner. A knockout portion 13 is formed that is easy to tear.

This knockout portion 13 is struck with a screwdriver or the like when necessary to allow the torn electric wire 2 to pass through it.

Furthermore, the inside of the end cap body 4 is narrowed down one step to make a substantially U-shaped elastic protrusion 5 protrude inward toward the joint box 3, and step portions 14 at the bottom of both ends of the protrusion 5 are formed.
Protrusions 9, 9 are formed from the lower end surface of 14, respectively.

This protrusion 9 is used to engage a locking hole 10 drilled in the case body 8 when the end cap body 4 is fitted into the case 1. Since the protrusion 9 is provided, the end cap body 4 This eliminates the need for other parts such as screws for fixing the case body 8 to the case body 8.

Both ends of the protrusion 5 form a collar 6 having a surface perpendicular to the direction in which the protrusion 5 protrudes, and the outer diameter of the collar 6 is determined from the inner dimension of the case cover 7 housed in the end cap body 4. It's a big deal.

This is because the protrusion 5 has elasticity, and when the end cap body 4 is fitted into the case, it can be temporarily fixed to the case cover 7 during assembly and construction, making assembly and construction easy. be.

As shown in FIG. 2, the joint box 3 to which the cord 12 and the electric wire 2 are connected is arranged on the case body 8 at a predetermined position, and the side end surface of the collar 6 of the end cap body 4 is covered with the case body. Insert it by sliding it onto the inner surface of the T.

Then, the protrusion 9 of the protrusion 5 fits into the insertion hole 10 of the case body 8.
At the same time, the tip surfaces of both flanges 6 abut the end surfaces of the joint box 3 and are fixed.

By the way, this end cap main body 4 is used for a multiple outlet in which a large number of outlets are formed as shown in FIG. 3, and in FIG.
Four plug insertion openings 11 are formed using four plug insertion holes.

That is, the outlet body 15 is fixed onto the elongated case body 8 having a substantially U-shaped cross section with the fixing screw 16, and the cord 12
A pair of blade retaining springs 17 are connected to the recesses 18 of the outlet body 15, and the tips of the blade retaining springs 17 are passed through above the pair of blade retaining springs 17. In addition, a leaf spring 20 and a door 21 are provided above each blade receiving spring 1T, and a cover 22 is provided above the outlet body 15, the middle frame 19, and the door 21. ,
A case cover 7 is provided with an insertion hole 24 for protruding the head 23 forming the plug insertion opening 11 of the cover 22.The case cover 7 is covered, and the plug sockets are inserted through the insertion holes 26 of the cover 22 using the assembly screws 25. It is screwed into the screw hole 27 of the body 15.

16 is a fixing screw that fixes the outlet body 15.

FIG. 4 shows a case where a three-phase joint box 3 is used, and even if the width of the joint box 3 becomes thicker, the end face of the wide ribs 6 of the protrusion 5 of the end cap body 4 can come into contact with the side surface of the joint box 3.

In addition, the upper and both sides of the outer side of the end cap body 4 are formed to be thicker than the outer diameter of the case cover 7 and are in contact with the outer peripheral surface, but the outer diameter of the end cap body 4 and the outer diameter of the case cover 7 are They may be made the same and formed on the same surface.

As described above, the present invention forms a substantially U-shaped protrusion that is elastic and protrudes from the end cap body toward the joint box, and the end face of the joint box is brought into contact with both tips of this protrusion to form the protrusion. Since the flange is formed with a surface perpendicular to the protruding direction, even if the shape of the joint box is different, such as single-phase or three-phase, the flange on the tip surface of the protrusion can cover the end surface of the joint box. By abutting, one end cap body can be used commonly for joint boxes of different shapes, and there is no need to make two types, one for single-phase and one for three-phase, as in the past. This has the advantage that the tension applied to the wire is absorbed by the elastic protrusion through the joint box, and the end cap body serves as a tension stopper.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the main parts of an embodiment of the present invention, Fig. 2 is a cross-sectional view of the main parts of the same, Fig. 3 is an exploded reduced perspective view showing an example using the same end cap, and Fig. 4 is a cross-sectional view of the main parts when using the same three-phase joint box as above, 1 is the case, 2 is the electric wire, 3 is the joint box, 4
5 indicates the end cap body, 5 indicates the protrusion, and 6 indicates the brim.

Claims (1)

[Scope of utility model registration request] A joint box for connecting the outlets and power supply wires is installed at the end of a rectangular cylindrical case in which a large number of outlets are arranged, and an end cap body is fitted to the end of the case. When the button is attached to the continuous outlet, a roughly U-shaped protrusion that has elasticity is projected from the end cap body toward the joint box, and the ends of the joint box are brought into contact with both tips of this protrusion to close the protrusion. An end cap for a tossable multiple outlet, characterized by forming a flange having a surface perpendicular to the protruding direction of the end cap.