JPS5838544Y2 - plug - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a plug having a connection hole into which another plug is inserted, and particularly to an extremely small insertion plug.

Conventional plugs of this type are made by assembling the plug-in conductor into which the plug is inserted and the plug-in conductor into which the plug is inserted into a power outlet by welding, etc., attaching the lead wire to the plug-in conductor with screws, and then attaching the base and cover. A plastic base was attached, which could be detached and attached by removing screws, and then a cover was attached, and the cover was attached to the base with bolts.

This conventional plug had a large number of parts because it had two separate types for the combination of the plug-in conductor and the plug-in conductor, one for the right side and the other for the left side, and the structure was complicated because it was a screw combination type. It has the disadvantage of being large and complex, and therefore expensive.

Furthermore, in some conventional plugs of this type, the insertion hole was provided on the opposite side of the insertion conductor, and the housing was made of integral resin molding.

In the case of this structure, since the plug is placed behind the back of the plug, the gravitational force applied to the plug-in conductor increases, making it easy for the plug to fall out of the wall outlet etc. There were some inconveniences in use, such as the first plug coming off when the plug was removed.

This invention was made in order to eliminate the drawbacks of the conventional ones as described above.

An embodiment of this invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of the insertion plug according to this invention.

FIG. 2 is a perspective view showing the positional relationship between the plug-in conductor and the plug-in conductor in FIG. 1.

FIG. 3 is an exploded view of the assembly of FIG. 2.

In FIGS. 1 to 3, 1. The second plugged conductors 1 and 2 are made of an elastic material, and each has a parallel surface 1 that is long in the width direction.
It is formed in a U-shape consisting of 01.102, 201.202 and bases 103, 203.

U-shaped openings on both sides 104, 105, 204, 205
A plug conductor (not shown) is inserted into the U-shaped space from at least one side of each of the plugs.

Slanted portions 101 a , 101 b , 102 a provided at both ends of parallel surfaces 101.102, 201.202
, 102b , 201 a , 201 b , 202
a and 202b are made to expand outward so that the plug conductors (not shown) can be easily inserted into the openings 104, 105, 204, and 205 on both sides.

Embossed parts 106.107.206.207 are parallel surfaces 10
It is formed into a shallow spherical shape from the 1°201 surface to the inside of the U-shape, and is pressed against the tip of the conductor of the plug (not shown) to firmly clamp it.

The vertical ends 108 and 208 of the parallel surfaces 101° and 102 are provided with bent portions, which close the vertical end openings 109 and 209 of the respective U-shaped spaces, and allow molding to be described later. This prevents resin from flowing into the U-shaped space.

Longitudinal extension 110.21 of parallel plane 101.201
0 is provided with short cylindrical protrusions 111° and 211 made by stamping or the like.

1st. The second plug-in conductor 3゜4 has parallel surfaces 101, 201
1st each. It is attached perpendicularly to the width direction of the second conductors 1 and 2 to be inserted, and is inserted into a known power outlet (not shown).

The mounting parts 301 and 401 are extension parts 110 and 210, respectively.
The protrusions 111, 211 are inserted into the holes 302, 402, and are attached to the extension portions 110, 210 by caulking after inserting the protrusions 111, 211 into the holes 302, 402.

The notches 303 and 403 are the first. Second plug conductor 3, 4
and second. This is provided to ensure an insulating distance between the first plugged conductors 2 and 1.

1st. The second lead wires 5 and 6 are connected to the first lead wires 5 and 6. It is attached to the second plug-in conductors 3 and 4 by brazing or the like.

The housing 7 has openings 104, 105, 204, 205 on both sides.
After inserting a conductor (not shown) into the first. Except for the tips of the second plug-in conductors 3 and 4, the first. The second plugged conductors 1, 2 and the first . The second plug-in conductor 3, 4 and the first . The opening portions of the second lead wires 5 and 6 are integrally molded with resin.

The housing 7 is provided with recesses 72, 72 in which parts of the protruding surfaces of the plug-in conductors 3, 4 are cut out to save plastic material and to make it easy for fingers to reach when removing the plug.

Next, the assembly structure of the insertion plug according to this invention will be explained.

First of all. The first... After installing the second plug-in conductors 3 and 4 and inserting the protrusions 111 and 211 into the holes 302 and 402, the protrusions 111 and 211 are caulked. Second
Connect the plug-in conductors 3 and 4 to the first. Second plugged conductor 1, 2
Attach to.

Next, the first. At the base of the second plug-in conductors 3, 4, the first. Second
Attach the lead wires 5 and 6 by brazing.

Next, the assembly of the second plug-in conductor 2 and the second plug-in conductor 4 is rotated by 180° to face the first plug-in conductor 1 and the first plug-in conductor 3, which have been integrated.
The first. The second plug conductor 3, 4 is connected to the first plug conductor. The second plugged conductors 1 and 2 are placed facing each other.

Next, the first. Second plugged conductor 1, 20 both ends open part 1
04,105°204.205 after inserting the same dimensions as the plug-in conductor (not shown), the first. The parts of the second plug-in conductors 3 and 4 excluding the tips, that is, the first. The second plugged conductors 1, 2 and the first . second plug-in conductor 3,
4 and the lead-out portions of the first and second lead wires 5 and 6 are integrally molded with resin to form a casing 7 having an insertion hole at one side end 71.

At this time, the resin also enters the holes formed in the parts where the protrusions 111 and 211 are caulked.

It is also recommended that the outer surface of the casing 7 be provided with unevenness, if necessary, to prevent the hand from slipping when inserting or pulling out the plug.

Note that in the above embodiment, the first. Second plugged conductor 1, 2
Although an insertion hole is provided only at one side end of the housing 7, if necessary, the distance between the openings 104, 105, 204, and 205 on both sides is made twice the size of the insertion conductor, and the openings on both sides are both connected to the housing 7. It may be exposed on the outer surface.

According to this invention, by adopting the integrated stick molding technology, there is no need for bolt nuts or bulkheads for fixing parts, and sufficient insulation can be obtained even if the distance between each part is shortened by providing notches 303 and 403. Therefore, the outer diameter of the plug can be made extremely small compared to conventional products, and furthermore, by providing the recess 72, it is possible to achieve both the saving of materials and the ease of pulling out the plug.

Furthermore, funnel-shaped inclined portions 101 a , 102 a , 101 b are provided at both ends of the conductors 1 and 2 to be inserted.

102 b , 201 a , 202 a , 201
b, 202b, etc. are provided, and caulking protrusions 111,
Since the conductors 1, 2, 3.4 are fixed with the mold inserted into the hole 211, the conductors 1, 2, 3.4 are firmly fixed to the mold, and the plug-in conductors 3, 4 can be connected to and removed from other outlets, or the parallel surfaces 102, 202 These will not come loose from the housing due to repeated insertion and removal of other plugs.

In addition, the element structure is formed by attaching a plug conductor and one electric wire to a plug conductor with sloped parts on both ends.
Since they are rotated and used in combination, there are fewer types of component parts and fewer types of elemental structures, which makes it possible to reduce manufacturing costs.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the insertion plug according to this invention. FIG. 2 is a perspective view showing the positional relationship between the plug-in conductor and the plug-in conductor in FIG. 1. FIG. 3 is an exploded view of the assembly of FIG. 2. In the figures, the same parts in each figure are given the same reference numerals.
1 and 2 are the first. Second plugged conductor, 101, 102° 201.202 are parallel surfaces, 101 a, 101 b
, 102a, 102b. 201 a , 202 b , 202 a , 202
b is both ends, 103, 203 is the bottom, 104, 105
, 204, 205 are openings on both sides, 106°107.2
06, 207 is a punched out part, 108, 208 is a vertical end, 109.209 is a vertical end opening, 110, 210
is an extension part, 111 and 211 are protrusions, and 3 and 4 are the first. 2nd plug-in conductor, 301, 401 is a mounting part, 302,
402 is a hole, 303 and 403 are notches, and 5 and 6 are first holes.
The second lead wire 7 is a housing.

Claims (7)

[Scope of utility model registration request] (1) A first plug of the same shape, which is formed into an elongated U-shaped cross section and has funnel-shaped inclined surface portions for receiving conductors for inserting other plugs into openings at both ends of the U-shape. ．．
A second conductor to be inserted, a first conductor attached to one end of each of the two opposing surfaces of each of the conductors to be inserted, perpendicular to the longitudinal direction of each conductor to be inserted. a second plug-in conductor, and the first and second plug-in conductors or the first plug-in conductor;
．． the first . a second lead wire; A second plugged conductor is arranged in parallel, and the first conductor is arranged in parallel. The second plug-in conductor is connected to the first plug conductor. They are installed parallel to each other and facing each other in a space that is an extension of the thin space created by the parallel arrangement of the second conductors to be inserted, and
．． The end portion and the insertion space on the same side of the second plugged conductor and the first plugged conductor. A plug in which the above-mentioned parts are embedded in a plastic casing and integrally molded, except for the tips of a predetermined length of each of the second insertion conductors and a portion of the lead wire separated by a predetermined length or more. (2) The plug according to claim 1, wherein both ends of each of the two parallel sides of the U-shape are expanded outward in a funnel shape. (3) Utility model registration claim No. 1, wherein at least one surface of the two parallel surfaces of the conductor to be inserted with a U-shaped cross section is provided with a bent portion that covers a part of the U-shaped opening. ) or (2). (4) Utility model registration claim No. (1) in which a protrusion is provided on at least one inner surface of the two parallel surfaces of the U-shaped cross section.
The plug described in any one of paragraphs to (3). (5) Above 1. The second plug-in conductor is attached to an extended portion of one of the two parallel surfaces of the U-shape. plug. (6) Above 1. Said first . of the second plug-in conductor. When attaching to the second plugged conductor, the second
．． Utility model registration claim No. (1) in which a notch is provided to maintain an insulating distance to the first plugged conductor.
The plug described in any of paragraphs to (5). (7) The plug according to any one of claims (1) to (5), wherein the plastic housing is provided with a recess for placing a finger.