JPS6115577Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a pin jack that is used by being attached to a mounting panel such as a jack board of various electrical equipment sets.

First, Figures 1 and 2 show an example of a conventional 4P type pin jack, in which four insulating bushes 1 are integrally molded into a synthetic resin body 2.
, a pair of cap plates 4 on which each pair of conductive caps 3 constituting the ground terminal are integrally molded, four internal terminals 5 constituting the positive terminal, an insulating substrate 6 made of synthetic resin, etc. There is. Then, with the conductive caps 3 and internal terminals 5 fitted into each insulating bushing 1 of the main body 2, these conductive caps 3 are pressed between the main body 2 and the insulating substrate 6,
Then, the main body 2 and the insulating substrate 6 are fixed by welding.

Next, regarding the attachment of the pin jack to the mounting panel 8 of the electrical equipment set, four mounting holes 9 are provided at the four corners of the outer periphery of the insulating board 6, and four nylon rings are inserted through the mounting panel 8. The insulating substrate 6 was fixed to the mounting panel 8 using a fixing device such as a bed 10 or screws.

However, such a conventional structure has the following defects.

(A) When assembling the pin jack, the internal terminals 5 are fixed to each insulating bush 1 by crimping, etc., and the main body 2 and the insulating board 6 are fixed by welding.
The assembly was extremely troublesome.

(B) After the pin jack is assembled, the insulating board 6, insulating bush 1, main body 2, and internal terminal 5 are all fixed, so even if one of these becomes defective, the entire pin jack must be replaced and repair is not required. Services etc. are extremely costly.

(C) Fixing devices such as four nylon rivets 10 and screws are required to attach to the mounting panel 8, which increases costs due to the large number of fixing components and time-consuming installation.

(D) The insulating board 6 is firmly attached to the mounting panel 8, but the main body 2 is only welded to the insulating board 6 and is not fixed to the mounting panel 8 in any way. On the other hand, the pin plug, which is the mating part of the pin jack, is inserted from the direction of arrow A in Figure 2.
In each case, the main body 2 directly receives a load that tends to separate it from the insulating substrate 6. Furthermore, according to the safety standards of each country, static load tests, impact tests, etc. from the direction of the arrow A are actually conducted, and sufficient protection against these tests is required. In other words, it is necessary to sufficiently increase the strength of the welding of the main body 2 to the insulating substrate 6, and for this reason conventionally, these two have been bonded together, ultrasonic welding has been performed, or the main body 2 has been pressed onto the insulating substrate 6 from the back side. Although a plurality of locking pawls have been integrally molded, they are both cumbersome to work with and difficult to process.

(E) The insulating substrate 6 itself must have a certain mechanical strength against the load in the direction of the arrow A. Therefore, conventionally, the thickness of the insulating substrate 6 has been made sufficiently large, resulting in high cost.

(F) Mounting holes 9 are provided at the four corners of the insulating board 6, but since the outer diameter D of each conductive cap 3 cannot be made too small, if the pitch of the pin jack is l, the outer diameter of the insulating board 6 is Dimensions 2xl
As a result, the width from the center of the insulating bushing 1 to both left and right ends of the insulating substrate 6 becomes l/2+α, which is larger than l/2. Therefore, in such a 4P type pin jack, when a large number of pin jacks are connected in a line to form an 8P, 12P... type multiple pin jack, the pitches may be uneven at the connecting parts of the insulating substrates 6. (2×l/2+α), and the product value decreases.

The present invention was devised in view of the above-mentioned circumstances, and is extremely easy to assemble, can be disassembled separately, can be mounted to a mounting panel extremely easily, is extremely strong, and is mounted on an insulated substrate. The object of the present invention is to provide a pin jack whose external dimensions can be significantly smaller than those of conventional pin jacks.

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

First of all, FIGS. 3 to 5 show the first embodiment, in which a 4P type pin jack is shown. The main body 13 is made of synthetic resin such as ABS resin, and four insulating bushes 14 are integrally molded into this main body. Further, a boss 15 for screwing, which constitutes an example of a locking portion having a hole as referred to in the present invention, is integrally molded approximately at the center of the four insulating bushes 14 of the main body 13. Reference numeral 17 denotes a pair of cap plates molded from a conductive member such as a brass plate, and a pair of conductive caps 18 constituting a ground terminal are integrally molded on these. Reference numeral 20 denotes an internal terminal constituting a positive terminal molded from a conductive member such as a brass rod. 22 is
This is an insulating substrate molded from synthetic resin such as ABS resin, and is provided with insertion holes 23 and 24 for the four conductive caps 18 and the central boss 15. 26 are four insulating rings. 27
are lead terminals soldered to the pair of cap plates 17, respectively. Reference numeral 28 denotes an insertion hole provided in the main body 2 for the pair of lead-out terminals 27.

Note that the insulating bush 14 is provided with an internal terminal insertion hole 41 that communicates with the pin plug insertion hole 40. Moreover, the internal terminal 20 is formed of a wire material,
At one end thereof, a curved portion 42 having a substantially C-shape is provided which is bent at a substantially right angle. Furthermore, a constricted portion 43 having a smaller diameter is provided at one end of the conductive cap 18, and a flange portion 44 is provided at the other end.

As for assembling the pin jack, the internal terminal 2 is inserted into the internal terminal insertion hole 41 of the insulating bushing 14.
0 and insert the curved portion 42 into the insulating bush 14.
The conductive cap 18 is fitted onto the insulating bush 14 with the insulating ring 26 interposed therebetween. Then, an insulating substrate 2 is placed on the outside of the conductive cap 18.
2 is fitted, and the conductive cap 18 is pressed between the insulating substrate 22 and the main body 13 by its flange portion 44. As a result, the curved portion 42 of the internal terminal 20 and the insulating ring 26 are sandwiched between the tip of the insulating bush 14 and the narrowed portion 43 of the conductive cap 18, completing the assembly of the pin jack.
At this time, the main body 13 and the insulating substrate 22 may be temporarily fixed by welding, adhesion, etc., but these fixings do not need to be specially performed.

Next, regarding the attachment of the electrical equipment set to the mounting panel 31 such as a jack board, a tapping screw or the like, which constitutes an example of the fixture referred to in the present invention, is inserted through the screw insertion hole 32 provided in the mounting panel 31. Screw the set screw 33 into the boss 15 portion of the main body 13. As a result, by tightening the setscrews 33, the insulating board 22 is sandwiched between the main body 13 and the mounting panel 31 in a sandwich-like manner, and the insulating board 22 and the main body 13 are integrated into the mounting panel. It is fixed at 31.

The pin jack constructed and mounted as described above has the following features.

(A) To assemble the pin jack, attach the internal terminal 20 to the insulating bush 14 of the main body 13, the insulating ring 26,
Since the conductive cap 18 and the insulating substrate 22 are simply fitted in order, the assembly is extremely simple.

(B) When one set screw 33 is removed, the main body 13, internal terminal 20, insulating ring 26, and conductive cap 1 are removed.
8 and insulating substrate 22 can be disassembled separately.

(C) Mounting to the mounting panel 31 can be done with one set screw 33.

(D) There is no need to specifically fix the insulating substrate 22 and the main body 13 by welding or other mechanical coupling methods.

(E) Since the insulating substrate 22 does not particularly require mechanical strength and only needs to have an insulating function, the thickness of the insulating substrate 22 can be made very thin.

(F) Since there is no need to provide mounting holes at the four corners of the insulating substrate 22, the external dimensions of the insulating substrate 22 can be made smaller than twice the pitch l of the pin jack. Therefore, the width from the center of the insulating bushing 14 to both left and right ends of the insulating board 22 is configured to be, for example, 1/2 of the pitch l, and a large number of 4P type pin jacks are connected in a line to form 8P and 12P pin jacks.
...If a multi-pin jack of the type is configured,
The pitches at the connecting portions of the respective insulating substrates 22 can be aligned to the correct pitch l.

Next, FIG. 6 shows a second embodiment,
In this case, it shows a 6P type pin jack,
Two screw-fastening bosses 15 are provided.

Next, FIG. 7 shows the third embodiment,
In this case, the screw fixing boss 15 is attached to the main body 1.
It is provided so as to protrude from the back side of 3.

Next, FIG. 8 shows the fourth embodiment,
In this case, the central portion of the main body 13 is made thicker and a screw hole 35 is provided there.

Although the embodiments of the present invention have been described above, the structures and shapes of the insulating bushing, main body, conductive cap, insulating substrate, locking portion, fixture, etc. referred to in the present invention are limited to those shown in the drawings. isn't it. In particular, regarding fixing devices, in addition to set screws, nylon rivets and other types of structures can be used.

As described above, the present invention involves sandwiching the internal terminal and the insulating ring between the insulating bushing and the conductive cap fitted on the insulating bushing, pressing the conductive cap between the main body and the insulating substrate, and attaching at least four Since the main body is fixed to the mounting panel approximately in the center of the insulating bushing using a fixture, there are the following advantages.

(A) To assemble the pin jack, simply fit the internal terminal, insulating ring, conductive cap, and insulating board into the insulating bushing of the main body in order. There is no need for welding, the assembly is extremely simple, and the assembly man-hours and assembly time can be greatly reduced.

(B) By removing the fixings from the mounting panel, all parts of the main body, internal terminals, insulating ring, conductive cap, and insulating board can be disassembled separately, so there is no possibility that one of these parts should become defective. Even in such a case, there is no need to replace the entire pin jack, and only the parts need to be replaced, so repair services can be performed at extremely low cost.

(C) Mounting to the mounting panel can be done extremely easily and firmly using, for example, a very small number of fixing devices (for example, one), so the number of parts for fixing devices can be greatly reduced, and the work efficiency of the installation can be improved. Not only will the cost be significantly improved and the cost will be extremely low, but the serviceability will also be significantly improved.

(D) If the insulating substrate and main body are not fixed by welding or other mechanical bonding methods, the number of man-hours for welding and gluing can be greatly reduced, and processing is also simplified, making it extremely Lower cost. However, since the insulating substrate and the main body can be sufficiently bonded, the structure is strong, reliable, and durable.

(E) Since the insulating substrate only needs to have an insulating function and no special mechanical strength is required, the insulating substrate can be made very thin, easy to mold, and very low cost.

(F) The external dimensions of the insulating substrate can be made sufficiently small (less than twice the pitch l), making it easy to align the pitch at the connecting part to the correct pitch when configuring a multi-pin jack, and making the product easier to align. You can construct something of high value.

[Brief explanation of the drawing]

Figure 1 is a front view of a conventional pin jack.
FIG. 2 is a sectional view taken along the line of FIG. 1, showing the state of attachment to the mounting panel. 3 to 8 show embodiments of the pin jack of the present invention, in which FIG. 3 is an exploded perspective view of the first embodiment, and FIG. 4 is an exploded perspective view of the first embodiment.
Figure 5 is a front view of the assembled state of the same as above, Figure 5 is a sectional view taken along the line of Figure 4 showing the state of attachment to the mounting panel, Figure 6 is a front view of the second embodiment, Figures 7 and FIG. 8 is a sectional view similar to FIG. 5 of the third and fourth embodiments. Also, in the symbols used in the drawings, 13...
Main body, 14... Insulating bush, 15... Boss constituting an example of a locking part, 18... Conductive cap, 2
2... Insulating board, 24... Insertion hole, 31... Mounting panel, 32... Screw insertion hole, 33... Set screw constituting an example of a fixture, 20... Internal terminal, 2
6...Insulation ring, 40...Pin plug insertion hole,
41... Internal terminal insertion hole, 42... Curved portion, 43
...Narrowed portion, 44...Flange portion.

Claims (1)

[Claims for Utility Model Registration] A main body in which at least four insulating bushes are integrally molded, an internal terminal, an insulating ring, and a conductive cap each fitted into the insulating bushes,
It consists of an insulating substrate that holds these conductive caps between it and the main body, the insulating bushing is provided with an internal terminal insertion hole that communicates with the pin plug insertion hole, and the internal terminal is formed of a wire material. One end of the conductive cap is provided with a curved part bent at a substantially right angle to form an approximately C-shape, and both ends of the conductive cap are provided with a narrowed part and a flange, respectively, and an internal terminal insertion hole of the insulating bushing is provided. The internal terminal is inserted into the terminal, the curved part of the internal terminal and the insulating ring are sandwiched between the tip of the insulating bushing and the constricted part of the conductive cap, and the flange part of the conductive cap is inserted into the insulating ring. The main body is configured to be pressed between an insulating substrate and the main body, and a locking portion having a hole is provided in the main body at approximately the center of the four insulating bushes, and the insertion hole of the mounting panel and the locking portion are connected to each other. A pin jack in which the main body is fixed to the panel by inserting fixing tools into both holes with the holes facing each other.