JPH0211740Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention is a plug-jack connector that is formed so that the plug inserted into the jack of the plug-jack connector will not come off naturally or fall out due to slight vibration. Regarding the structure of the jack in the connector.

Conventional technology Conventional technology with a mechanism to prevent the inserted plug from falling out includes Japanese Utility Model Application No. 59-67873 and Japanese Utility Model Application No. 67873.
There are devices such as those disclosed in No. 59-67873. The device disclosed in Japanese Utility Model Application Publication No. 59-67874 stores a coil spring in a jack, forms a coil with a smaller diameter than a plug that is inserted into a part of the coil spring, and connects the coil in a concentric manner. and bring the coil formed to the small diameter into contact with the outer peripheral surface of the plug,
It is designed to prevent it from falling off. Furthermore, the device disclosed in Japanese Utility Model Application No. 59-67873 forms a part of the coil spring housed in the jack with a diameter slightly larger than the diameter of the inserted plug, and also forms the part eccentrically with respect to the jack shaft. The outer peripheral surface of the inserted plug is supported by the coil of the eccentric portion to prevent the plug from falling out.

Problems to be Solved by the Invention Although a coiled spring expands and contracts in the axial direction of the coil, it does not expand and contract in the radial direction due to the axial expansion and contraction. Therefore, due to the difference in dimensions of the coil, there is a manufacturing problem that makes it extremely difficult to bring the coil into soft contact with the peripheral surface of the inserted plug. In order to prevent the inserted plug from falling out, a soft and weak mutual pressure on the contact surfaces that hold the inserted plug is sufficient, and it is not necessary to insert it with a strong sense of moderation. In order to adjust the contact pressure, it is desirable that the contact piece be able to move in a direction intersecting the axis of the insertion plug, which is a problem that cannot be expected with a coiled spring.

Means to Solve the Problem This invention consists of forming a pair of cantilever-shaped leaf springs in the jack, and pinching the inserted plug with the leaf springs. However, the object of the present invention is to provide a jack structure in a plug-jack connector that solves the above-mentioned problems by forming the inserted plug so that it will not come off due to a slight impact. .

FIG. 1 is an enlarged sectional view of the jack portion according to this invention. A guide ring 2 made of an insulating material is provided inside a mating plug insertion port 1, and a tightener 3 is mounted thereon. The tightener 3 is formed of a thin metal plate, and has one end in contact with the inner surface of the cap 4 and a pair of guide grooves 5 formed in the guide ring 2 at the other end.
It is formed by penetrating it and protruding from the inner surface. In this case, the guide groove 5 is formed so that the tightener 2 can extend or contract in the radial direction with the outer edge of the tightener 2 in contact with the inner surface of the cap 4 as a fulcrum.

Function: The inserted mating plug faces the inner circumferential surface of the guide ring 2 with a slight spacing, and at the same time comes into contact with the outer circumferential surface of the tightener 3 protruding from the inner circumferential surface. The tightener 3 acts like a cantilever with the outer edge in contact with the inside of the bottom surface of the cap 4 as a fulcrum, and even if there are variations in the outer circumferential diameter of the inserted plug, it always tightly holds the outer circumferential surface of the plug from both sides and maintains electrical connection. Make sure to connect to the

Embodiment FIG. 2 is a partially sectional front view of a three-pole plug-jack connector. In the diagram, 6 is a chip, 7
is the intermediate sleeve, 8 is the sleeve, 9 is the stator, 1
0 is a chip connector, 11 is an intermediate sleeve connector,
12 is a guide. Further, 1 is an insertion opening, 2 is a guide ring, 3 is a tightener, 4 is a cap, and 5 is a guide groove.

The chip 6 forms one pole and faces the intermediate sleeve 7 concentrically forming the other pole with a spacing margin provided, and the spacing margin is fixed by filling with an insulating material. The sleeve 8 forms a third pole, for example, a ground electrode, and faces the intermediate sleeve 7 and the chip 6 concentrically with a spaced apart part, the spaced part is filled and fixed with an insulating material, and is formed long. The insulating material is formed in close contact with the same thickness on the inner peripheral surface of the cylindrical shape.
The outer diameter of the cylindrical sleeve 8 is determined to correspond to the so-called nominal size of the plug-jack connector. Further, the sleeve 8 is formed with a cap mounting portion 81 having a slightly thicker wall near the opening edge, and the cap 4 is inserted and fixed into the cap mounting portion 81 with a tightening margin. The stator 9 is constructed by placing the tip connector 10 and the intermediate sleeve connector 11 facing each other with an appropriate spacing between them, and attaching the sleeve 8 to the sleeve 8.
The insulating material is formed into a cylindrical shape, and the chip connector 10 and the intermediate sleeve connector 11 are fixed inside.
embed a part of it and form it as one piece. The chip connector 10 is formed to be connected to the chip 6 and comes into contact with a chip terminal of a mating plug inserted into the jack, and has a width plate formed in the shape of a leaf spring. The intermediate sleeve connector 11 also comes into contact with the intermediate sleeve of the mating plug inserted into the jack, and is formed by bending a width plate so as to appropriately maintain contact surface pressure with elastic force. The guide 12 guides the inserted mating plug onto the axis of the sleeve 8, and
Chip connector 10 and intermediate sleeve connector 11
It is made of an insulating material and is inserted and fixed to the opening edge of the sleeve 8 via the insulating material. The cap 4 is formed into a cylindrical body with a bottom, and the inner circumferential diameter of the cylindrical body is formed to a size that allows the cap attachment portion 81 of the sleeve 8 to be fitted and fixed. Also, a circular insertion opening is formed at the center of the bottom. The insertion port 1 is a window into which a mating plug is inserted, and is formed to have a diameter slightly larger than the diameter of the plug to be inserted.

The guide ring 2 is combined with the tightener 3,
This prevents the inserted mating plug from falling out. As shown in FIGS. 3, 4, and 5, the guide ring 2 is formed into a thick-walled cylindrical body made of an insulating material, and the outer diameter of the cylindrical shape is press-fitted and fixed to the inner circumferential surface of the cap 4. Form to the desired dimensions. Further, the inner circumferential diameter is formed to a size that allows a slight loose fit to the outer circumferential surface of the sleeve of the mating plug to be inserted. Further, the guide ring 2 is formed with a pair of opposing guide grooves 5 that are open on the diameter of a large circle. The guide groove 5 is
The groove is formed in a channel shape with a rectangular cross section, and the groove depth increases from one end face to the other end face of the guide ring 2, and penetrates the inner circumferential face near the other end face. Form it like this. That is, the bottom surface of the guide groove 5 is formed into a slope shape that approaches the other end surface and intersects with the inner circumferential surface near the other end surface. Further, the openings 22 and 23 to the inner circumferential surface are formed to have a slight length in the axial direction, and are then restored to the cylindrical shape.

As shown in FIGS. 6 and 7, the tightener 3 includes a base portion 31 formed by punching and bending a thin sheet metal and forming a ring-shaped flat plate, and a large circular diameter of the base portion 31. It is formed by providing gripping pieces 32 and 33 on both side edges formed in the shape of a width plate and extending outward. The gripping pieces 32 and 33 are bent to form an acute angle with the base portion 31, and the guiding grooves 5 provided in the guide ring 2 are bent so that the gripping pieces 32 and 33 are closest to each other at the edge. They are formed so that they form a pair and are slanted along the bottom surface. Also, the end edges are tip edges 34, 35.
It is formed by bending approximately parallel to the axis. Further, the outer diameter of the base portion 31 is formed smaller than the outer diameter of the guide ring 2, and the gripping pieces 32 on the base portion 31,
33 is formed so as to sandwich the guide groove 5 of the guide ring 2 with a slight margin. Also, pick piece 3
The plate widths 2 and 33 are formed to such a width that they fit slightly loosely into the guide groove 5.

The tightener 3 abuts the base portion 31 against one end surface of the guide ring 2, fits the picking pieces 32, 33 into the guide groove 5, and the tip edges 34 of the picking pieces 32, 33,
35 are formed so as to slightly protrude from the openings 22 and 23 of the guide ring 2, and in this state, the cap 4 is pushed into the base portion 31 of the tightener 3.
are sandwiched between the guide ring 2 and the inside of the bottom surface of the cap 4, and are fixedly formed with sufficient contact surface pressure. The sleeve of the mating plug inserted from the insertion opening 1 of the cap 4 is inserted into the insertion opening 1 of the cap 4.
The guide ring 2 is slightly loosely fitted into the inner circumferential surface of the guide ring 2, and comes into contact with the tip edges 34, 35 of the picking pieces 32, 33 in a pinched state.

Effects This invention is based on the above-mentioned embodiment and is configured as claimed in the utility model registration, so that the inserted mating plug always comes into soft and tight contact with the gripping piece. It won't fall off easily. Also, since the base of the pick-up piece is in contact with the cap, the electrical connection is secure. Further, since the gripping piece loosely fits into the guide groove, even if there is variation in the diameter of the inserted plug, it always makes sure to contact the plug due to the spring effect. Furthermore, it is easy to manufacture, and it is possible to provide a jack structure in a plug-jack connector that does not directly affect product cost.

[Brief explanation of the drawing]

Figure 1 is an enlarged drawing of the jack part, Figure 2 is a front view of the three-pole plug-jack connector, Figure 3 is a sectional view of the guide ring, Figure 4 is its side view, and Figure 5 is its side view. 6 is a sectional view of the tightener, and FIG. 7 is a plan view thereof. 1...Insertion port, 2...Guide ring, 3...Tightener, 4...Cap, 5...Guide groove, 6...
... Chip, 7 ... Intermediate sleeve, 8 ... Sleeve, 31 ... Base portion, 32, 33 ... Picking piece.

Claims (1)

[Scope of utility model registration request] The cap mounting portion 81 is formed into a cylindrical body with a bottom and has a slightly thick wall at the opening of the sleeve 8, and is inserted and fixed with a tightening margin, and is formed through the insertion opening 1 of the mating plug in the center of the bottom. The cap 4 and the insulating material are formed into thick-walled cylindrical bodies, formed in pairs facing each other on the diameter of a large circle, opening on the outer peripheral surface parallel to the axis, and having an inclined surface with the bottom surfaces close to each other. A channel-shaped guide groove 5 formed in the cylindrical body, openings 22 and 23 through which the guide groove 5 crosses the circumferential surface of the cylindrical body, and a thick-walled cylindrical body connected to the openings 22 and 23 are provided. The guide ring 2 is formed of a thin sheet metal, and the base part 31 is formed into a ring shape. A tightener 3 is provided with pinch pieces 32 and 33 bent at an acute angle with the base part 31 as shown in FIG. The pinching piece 32 is sandwiched with mutual surface pressure and is attached to the guide groove 5.
33 is provided in a loosely fitted manner, the tips of the pick pieces 32 and 33 are formed to protrude from the openings 22 and 23 of the guide ring 2, and the guide ring 2 is provided with mutual surface pressure on the inner peripheral surface of the cap 4. 1. A structure of a jack in a plug-jack connector, characterized in that the jack is formed by being fixed in place.