JPH0436066Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention is a car plug that is inserted into the cigarette lighter socket of a car to obtain power for devices such as car stereos, pots, and car vacuum cleaners. It is related to.

[Prior art and its problems]

Various car plugs have been commercially available, but in all of them, the lead wire for connection to each device used is inserted through the insertion hole provided at the end.
Although the wiring of each terminal is connected by welding, soldering, or screws, if force is applied to the lead wire from the car plug to various devices, the connection between the wiring of each terminal and the lead wire may Problems have arisen, such as parts coming off or the ends of bare lead wires breaking, making them unusable.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention is designed so that the lead wires are engaged with the respective horizontal ribs in the connection chamber between the connection section of each terminal and the lead wire insertion port, and are fixed by being compressed in the front and back direction. This is what I did.

[Structure of the idea]

The structure of the present invention consists of a main body that is divided into two in the length direction with an elastic terminal plate protruding from the body circumference, a contact terminal into which a coil spring is inserted, and a tube fuse between the coil spring and the connection terminal. A wire connection chamber is formed near the lead wire insertion port, and in the wire connection chamber, the connection portion of the elastic terminal and the connection portion of the connection terminal are respectively fixed to the tip of the lead wire, and both bodies are joined together. In car plugs that are assembled together, one side rib is formed on the inner wall of one body leading to the connection chamber, and the other side rib is formed with an insertion interval on the inner wall of the other body, and the respective bodies are joined together. The lead wire is engaged with one side rib and the other side rib, and is fixed by being compressed, and the contact part is screwed on the tip side of the main body, and a fitting ring is fitted on the other end where the lead wire is inserted. be.

〔Example〕

The present invention will be described below based on drawings of embodiments.

Fig. 1 is a partially sectional plan view of the assembled state of the embodiment, Fig. 2 is a partially omitted side view, and Fig. 3 is a side view of the other side main body; FIG. 4 is a plan view of FIG. 3, and FIG. 5 is a longitudinal sectional view illustrating the main parts.

The present invention relates to a car plug that is inserted into a car's cigarette lighter socket to obtain power for devices such as a car stereo, a pot, and a car vacuum cleaner. Main body 1 divided into two in the length direction by protruding elastic terminal plate 3
a, 1b, a contact terminal 5 into which one end of a coil spring 4 is inserted, and a connecting terminal 6 which is set upright from the coil spring 4, and a tube fuse 7 is inserted thereinto.
A wire connection chamber 9 is formed near the lead wire insertion port 8,
In the wire connection chamber 9, the wire connection portion 3a of the elastic terminal 3 and the wire connection portion 6a of the connection terminal 6 are fixed to the tip of the lead wire 10 inserted through the lead wire insertion port 8, and the two bodies 1a and 1b are joined together. In the car plug that is assembled by attaching the wire to the wiring chamber 9, one horizontal rib 15a is vertically formed on the inner wall of one main body 1a and protrudes from the dividing surface 14a of one of the two halves of the apex 13a. 1b The one side horizontal rib 1 to the inner wall
The other horizontal rib 15b is vertically formed to protrude from the other divided surface 14b of the top part 13b with an interval for passing the lead wire 10 between it and the top part 13b, and the two divided main bodies 1a and 1b are joined together. In this case, the lead wire 10 to be inserted is engaged with the horizontal ribs 15a on one side and the horizontal ribs 15b on the other side, and is clamped and fixed in the front and back direction, and the tip side of the main body 1 is a contact with a contact terminal 5 protruding so as to be freely retractable. The part 11 is screwed on, and the fitting ring 12 is fitted on the other end on the lead wire insertion side.

That is, as shown in FIGS. 2 and 3, the main body 1 of the car plug of the present invention has a cylindrical shape divided into two parts in the longitudinal direction, and a cutout part 2 is formed in each part in the waist circumference. The elastic terminal plate 3 is made to protrude in two directions from the waist circumference, and an insertion part into which the tube fuse 7 is inserted is integrally formed at the center side.

First, the connection portion 3a of the elastic terminal plate 3 and the connection portion 6a of the connection terminal 6 are connected to the ends of the lead wires 10 by welding, soldering, etc., and the notch 2 of one main body 1a is connected. The elastic terminal plate 3 is placed so as to protrude further, and the tube fuse 7 is inserted into the insertion portion on the center side, and the connecting terminal 6 is formed to have an L-shaped longitudinal section and is locked to the connecting terminal rib 16. Pipe fuse 7
and the connection terminal rib 16 in an inverted L shape, and the lead wire 10 is placed so as to be inserted into the insertion hole 8, and the one main body 1a and the other main body 1b At the tip side, one end of the coil spring 4 is inserted and a contact part 11 with a movable contact terminal 5 protruding is screwed onto the tip side, and a fitting ring 12 is fitted onto the other end where the lead wire is inserted. It is assembled by doing.

When the car plug of the present invention is assembled together, the horizontal ribs 15a and 15b, which are provided upright on the inner wall of the wiring chamber 9 of the main bodies 1a and 1b, are divided into two parts by the respective dividing surfaces 14a and 14b. One horizontal rib 15a and the other horizontal rib 15 are provided to protrude from each other.
b, the insertion distance between the top 13a of one side rib 15a and the corresponding inner wall of the other main body 1b, and the insertion distance between the top 13b of the other side rib 15b and the corresponding inner wall of the other main body 1a. The wires are then wired to the outside of the car plug body 1 through the lead wire insertion port 8.

Therefore, the lead wire 10 is attached to each horizontal rib 15.
a, 15b, and is firmly pinched in the front-rear direction by the respective horizontal ribs 15a, 15b, and the top portion 13 of each horizontal rib 15a, 15b is bent.
a and 13b, and furthermore, one side rib 15a
The top part 13a of the main body 1b and the inner wall of the other main body 1b can be compressed and firmly fixed, and the force applied to the lead wire 10 from the outside is absorbed by the respective horizontal ribs 15a,
15b, the connection portion 3a of the elastic terminal 3 with the lead wire 10 and the connection portion 6a of the connection terminal 6 with the lead wire 10 are not affected at all, and the connection portions 3a,
There is no possibility of disconnection or disconnection of the wire 6a, and in addition, assembly is facilitated.

In the drawings of the embodiment of the present invention, the horizontal rib 1 on the connection side
The top part 13b of 5a is formed by exaggerating the bulk at both ends to prevent the lead wire 10 from slipping.As a result of repeated experiments in which the lead wire 10 was pulled many times during the trial production stage, each connection point was It has been demonstrated that the car plug falls out of the cigarette lighter socket of a car before it affects 3a and 6a.

[Effect of idea]

By forming horizontal ribs on each main body with insertion intervals, the present invention eliminates disconnection of the connection between the lead wire and each terminal, as well as disconnection near the connection where the lead wire is exposed. At the same time, it is possible to provide a car plug that is easy to assemble and has high reliability.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional plan view of the assembled state of the embodiment. FIG. 2 is a partially abbreviated side view. FIG. 3 is a side view of the other side main body.
FIG. 4 is a plan view of FIG. 3. FIG. 5 is a longitudinal sectional view illustrating the main parts. 1, 1a, 1b...Main body, 2...Notch, 3...
...Elastic terminal board, 3a... Connection part of elastic terminal board, 4
...Coil spring, 5...Contact terminal, 6...
Connection terminal, 6a...Connection portion of connection terminal, 7...Tube fuse, 8...Lead wire insertion port, 9...Wire connection chamber, 10...Lead wire, 11...Contact portion, 12...
... Fitting ring, 13, 13a, 13b ... Top of horizontal rib, 14, 14a, 14b ... Divided surface, 1
5, 15a, 15b... horizontal ribs, 16... ribs for connection terminals.

Claims (1)

[Claims for Utility Model Registration] A main body that is divided into two parts in the length direction by protruding an elastic terminal plate from a notch in the body circumference, a contact terminal into which one end of a coil spring is inserted, and a contact terminal that is vertically connected to the coil spring. A tube fuse is inserted between the provided connection terminal, a wire connection chamber is formed near the lead wire insertion port, and the lead wire is inserted between the connection portion of the elastic terminal and the connection portion of the connection terminal in the connection chamber. In a car plug that is assembled by fixing the ends of the lead wires inserted through the openings and joining the two main bodies together, from one dividing surface where the top part is divided into two, to the inner wall of one main body to the wiring chamber. One of the protruding horizontal ribs is formed vertically, and a lead wire is inserted into the inner wall of the other main body with a gap between the two horizontal ribs, and the top part of the second horizontal rib protrudes from the other dividing surface of the two parts. By joining the two main bodies formed vertically, the lead wire to be inserted is engaged with one side rib and the other side rib, and is fixed by being compressed in the front and back direction, and the tip side of the main body is fixed. A car plug characterized in that a contact part in which a contact terminal protrudes freely forward and backward is screwed onto the contact part, and a fitting ring is fitted into the other end on the lead wire insertion side.