JPH031904Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a pin jack with a switch for facilitating the construction of a switch circuit.

[Prior Art] Conventionally, this type of pin jack with a switch has a separator break fixing spring, a transfer spring, and a make fixing spring built into the case, and the separator is separate from the transfer spring and supported by the jack case. It is known that the transfer spring is provided with a break contact portion and a make contact portion. (For example, see Japanese Utility Model Application Publication No. 53-55694.) In addition, a holder for insertion is provided on the front side of the jack body to form an insertion hole, and a part of the circumference of this plug insertion hole is provided in the direction in which the plug is inserted. An enlarged diameter groove is provided in communication with the inside of the jack body, and one end of a rod-shaped lever extending from the beveled side of the plug insertion hole into the jack body is inserted into the enlarged diameter groove. The lever is pivotably supported on the groove side, and the intermediate portion is protruded toward the inner end of the plug insertion hole toward the axis side than the circumferential surface, and is housed movably in the radial direction of the plug insertion hole. A pin jack has been proposed in which the end is pivotally supported on a movable contact piece that moves toward and away from a fixed contact piece provided within the jack body.

(For example, see Japanese Utility Model Publication No. 59-27026.) [Problem to be solved by the invention] As described in the prior art, in the former case, the arm 3A is bent on one inner surface of the jack case and protrudes inward. Since the plug abutting part is raised at the tip of the arm 3B, there is a problem that each time the plug is inserted into the plug insertion hole, the arm 3A comes out from the side surface due to the frictional resistance between the abutting part and the plug.

In addition, in the latter case, the structure of the contact piece tends to be complicated, which leads to frequent contact failures due to contact piece fatigue and short circuits due to rattling, and the number of built-in switch circuits and circuit configurations are limited, making it difficult to diversify. There were also problems that could not be addressed. Therefore, the present invention was devised in view of these problems with the conventional technology, and its purpose is to provide a device that can be easily incorporated at a low cost, and also to easily diversify the circuit configuration. The purpose of this invention is to provide a pin jack with a switch that can be used.

[Means to solve the problem]

In order to achieve the above object, the configuration of the pin jack with switch of the present invention is such that a plug insertion portion having a plug protrudes from one side of a synthetic resin body with the other side open, and the inner peripheral surface of the plug insertion portion is A notch is formed in the lower part or in the upper part and the lower part, and a separator having an insertion hole having the same diameter as the insertion hole of the insertion part is brought into close contact with the end face of the plug insertion part, and the elastic arm is inserted along the inside of the notch from the separator. The plug is inserted horizontally into the interior of the arm, and a plug contact portion is raised on the upper surface of the inner end of the arm. The tip of the transfer spring piece, which has a terminal protruding from the lower surface of the main body and whose inner end is inserted into the main body, is curved and supported from the lower surface so that the plug contact portion is located on the upper surface. moreover,
The contact piece is inserted and fixed into a groove formed in the synthetic resin body to make elastic contact with the plug. Correspondingly, a break piece constituting the switch is pressed against the upper surface of the transfer spring piece,
A cylindrical earth cap head is fitted onto the outer circumferential surface of the plug insertion portion and fixed thereto. In addition, for the same purpose, a plug insertion part attached to one side of the synthetic resin body is formed with notches in the upper and lower parts of the inner circumferential surface when viewed from the front, thick walls are provided on the left and right sides, and the upper and lower parts are In order to be inserted along the notch, the ends of the arms are integrally extended inwardly from a synthetic resin separator that has the same inner and outer diameters as the insertion hole at the mouth end of the insertion hole, and are inserted inwardly. The cylindrical earth cap head fits the plug insertion part and the outer circumferential surface of the separator by raising the plug abutting parts that are opposed to each other, and the curved part of each transfer spring piece is attached to the back of each plug abutting part. It is also possible to bring the break pieces into contact with each spring piece.

[Effect]

A synthetic resin separator equipped with at least one elastic arm extending in the axial direction of the plug insertion hole and a plug contact portion protruding from the tip of the arm is brought into contact by a plug that is inserted into and removed from the pin jack body. When the transfer spring piece and the break piece come into contact with each other, the switch is switched by separating the transfer spring piece and the break piece.

〔Example〕

Examples will be described with reference to the drawings.

In FIGS. 1 to 4, a plug insertion portion 1 is provided protruding from one side of the synthetic resin body, and the other side is open.
A lower part of the inner peripheral surface of the insertion hole 2 of the plug insertion part 1 is cut out to form a notch 4, and an arm 8 of the synthetic resin separator 6 is made to match the outer end surface of the insertion part 1.
A plug abutting part 9 is provided at the tip of the plug, and the plug is inserted along the inside of the notch 4, and a separator 6 is tightly attached to the opening end of the insertion part, and a cylindrical earth cap head 14 is attached to the outer peripheral surface of the insertion part. Cover and fix. Reference numeral 10 denotes a transfer spring piece, which has a terminal partially exposed outside the main body 1, and its inner end is inserted into the inside of the main body 1 to form a tongue piece 12, and the curved part 12 at the tip is a plug contact part. 9 is formed so as to be positioned and supported on the lower surface of the
13 is a break piece constituting the switch,
It is in contact with the tongue piece of the transfer spring piece 10.

FIG. 5 shows another embodiment, in which notches 18 and 19 are formed at the top and bottom of the inner peripheral surface of the plug insertion part, and a plug insertion hole 22 is formed to match the mouth end surface of the insertion part. An arm 23 equipped with plug contact parts 25 and 26 at the upper and lower parts of the separator 21,
24 is inserted horizontally toward the rear inside the main body 17 along the notches 18 and 19 of the insertion part, and the plug contact parts 25 and 26 are provided oppositely in the main body. Reference numeral 27 denotes a transfer spring piece, which is formed as a tongue piece 28 in the main body 17 and has a tip portion formed into a curved portion 32 and brought into contact with the back surface of the plug abutting portion 25 . 20 is a contact piece, and 30 is a break piece constituting a switch, the tip of which presses against the transfer spring piece 28. Reference numeral 22 denotes a separate transfer spring piece, the tip of which is brought into contact with the back surface of the plug abutting portion 26, and the transfer spring piece is pressed against the break piece. Note that it is a matter of course that the insertion portion is fitted at the head of the earth cap.

FIG. 7 shows another embodiment, in which the first
The difference from FIGS. 6 to 6 is that in FIG. 7, a notch is formed in the lower part of the inner peripheral surface of the plug insertion part, and an arm made of an elastic body protrudes from the inner wall of the plug insertion part. A plug contact portion is raised at the tip of the plug and inserted into the main body along the inside of the notch.

Effects of the invention Since the invention is configured as described above, it produces the following effects.

(1) Insert the synthetic resin separator from the plug insertion direction.
Since each contact piece is arranged on the opposite side, sufficient distance can be maintained between the contact pieces and between the contact piece and the plug, and the assembly operation is easy.
In addition, the load application point on the transfer spring piece when the plug is inserted or removed is the curved part formed at the tip of the tongue piece that comes into contact with the synthetic resin separator, so a sufficient movable span can be obtained, and there is no need for a complicated structure and there is no need for spring fatigue. This has the advantage of ensuring that there is no transfer spring piece. In addition, since the transfer spring piece and the synthetic resin separator are separate pieces, there is no need to attach the separator to the transfer spring piece, and since the washer and separator are integrally formed, the number of parts can be reduced. It also has great economic benefits.

(2) Since a notch is formed on the inner circumferential surface of the plug insertion part above the arm insertion passage of the separator, the gap for increased momentum of the arm prevents strain on other mechanisms when inserting the plug. There is a practical benefit to having a pin jack with a smooth switch.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of the jack of the present invention before the plug is inserted, Fig. 2 is a cross-sectional view showing the same state after the plug is inserted, Fig. 3 is a perspective view showing the arm attached to the separator, and Fig. 4. 5 is a front view showing the mouth end of the plug insertion portion, and FIGS. 5 to 7 are sectional views showing other embodiments. 1, 15, 36...Plug insertion part, 2, 7, 1
6, 22...Plug insertion hole, 3, 17, 35...
Synthetic resin body, 4, 18, 19... through hole, 6,
21...Synthetic resin separator, 10, 27, 29
...transfer spring piece, 8, 23, 24, 3
7... Arm, 9, 25, 26, 38... Plug contact portion, 14, 34... Earth cap head.

Claims (1)

[Scope of utility model registration request] From the side of the pin jack body opposite to the plug insertion hole, bend the contact piece from outside the body and insert it up to the plug insertion part inside the body, and insert the tip of the break piece that is bent from the left and right sides of the body and protrudes inside the body. A notch 4 is provided below the inner circumferential surface of the plug insertion portion 1, and a notch 4 is provided at the mouth end of the insertion portion 1 in the jack, which is arranged in relation to each other so as to come into contact with and separate from the upper surface of the transfer spring inserted therein. A plug abutment part 9 is raised at the tip of an arm 8 that integrally extends inward from a synthetic resin separator having the same inner and outer diameters as the hole 2, and the plug abutment part 9 is fitted along the inside of the notch 4. The plug is inserted into the main body 3 and the outer peripheral surfaces of the plug insertion portion 1 and the separator 6 are fitted with the cylindrical earth cap 14, and the plug contact portion 9 is fitted.
The transfer spring piece 10 is attached so that its lower surface is positioned above the curved end of the transfer spring piece 10, and a plug abutment part 9 is provided protruding into the plug insertion hole 1, so that the transfer spring piece 10 is inserted into and removed from the plug. A pin jack with a switch configured so that the switch can be changed by using the button.