JP2601800Y2 - Jack type connector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jack-type connector provided in equipment such as video equipment and audio equipment.

[0002]

2. Description of the Related Art A jack type connector (hereinafter referred to as "jack") in which a plug type connector (hereinafter referred to as "plug") is used as a mating connector, since a plug insertion hole of the body is opened at the front end of the body. It is easy for dust to enter from the part, and the dust may adhere to the contact piece provided in the plug insertion hole and cause poor electrical contact with the plug-side contact piece. When the jack is mounted on the upper panel of the device upward, the tendency is particularly remarkable because the opening of the plug insertion hole is directed upward.

Therefore, conventionally, a lid is attached to a panel on the equipment side (a front panel, an upper panel, or the like), and when a plug is not inserted, the lid blocks the opening of the plug insertion hole to prevent dust. Was implemented.

On the other hand, in a jack whose body is surrounded by a metal shield frame, the jack side shield frame is intended to ensure contact with the plug side shield frame inserted into the plug insertion hole.
It has been conventionally known that a contact piece is extended from a shield frame on the jack side, and the contact piece is folded from the opening of the plug insertion hole into the plug insertion hole.

[0005]

As described above, in the case where dust is prevented by the cover attached to the panel on the equipment side, a space for attaching the lid is secured separately from the space for attaching the jack to the panel. In such a case, an extra space is required for mounting the lid in addition to the space for mounting the jack, and the equipment side, which is a member separate from the jack having the plug insertion hole, is required. The fact that the lid is attached to the panel often causes problems in appropriately maintaining the relative positional accuracy between the insertion position of the plug inserted into the plug insertion hole and the attachment position of the lid.

In order to solve this problem, it is effective to attach the lid directly to the body of the jack, and a technique employing such a concept is described in Japanese Utility Model Laid-Open No. 3-92368. This is one in which a mounting frame body having a lid that can be opened and closed is mounted on a jack,
The lid opens toward the outside of the panel of the equipment to which the jack is attached.

However, according to the technique described in the above publication, the opening direction of the lid is opposite to the insertion direction of the plug. Therefore, when the plug is inserted into the plug insertion hole of the jack, the insertion operation is performed. However, since it is necessary to perform the operation of opening the lid prior to the operation, there is a problem that the operation at the time of plug insertion is rather troublesome.

A first object of the present invention is to provide a simple operation for inserting a plug into a jack, and it is not necessary to secure a space for mounting a lid on a device side. An object of the present invention is to provide a jack capable of easily and appropriately maintaining positional accuracy relative to a position.

On the other hand, even in the above-described jack having a shield function by surrounding the body with a metal shield frame, attaching a lid for dust prevention to the body requires the jack-side contact piece and the plug-side contact piece. Is preferable in preventing poor electrical contact.

By the way, when a plug having a shield function as a mating connector is inserted into a jack, the plug-side shield frame and the jack-side shield frame come into contact with each other in as large an area as possible or in as many places as possible. Has been found to be effective in improving shielding performance.

A second object of the present invention is to provide a jack having a dust-proof lid and a shielding function, in which a plug-side shield frame and a jack-side shield frame inserted into the jack have as large an area as possible. An object of the present invention is to provide a jack capable of maintaining good shield performance by allowing contact at as many places as possible.

[0012]

Jack according to the invention of claim 1 Means for Solving the Problems] is an insulating body having a plug insertion hole, Bo
The plug insertion hole
Opening the opening and opening position along the predetermined location on the hole wall
Lid that can be opened and closed between a closed position that closes the opening
The body is interposed between the body and the body, and the body is closed.
A metal shield frame surrounding the body is fixed to the body, the lid is conductive, and the lid is folded substantially perpendicularly to the free end of the lid. A curved contact piece is provided, and when the lid is closed to a closed position about an axis, a through hole through which the contact piece is inserted is provided in a wall of the body, and a shield is provided. The frame is provided with a contact piece facing the through hole and contacting the contact piece inserted into the through hole.

[0013] The jack according to the invention of claim 2 is characterized in that
In the device described in 1 , when the lid is moved to the open position, at a location other than a predetermined location on the hole wall surface along which the lid is moved,
A contact piece extending from the opening of the plug insertion hole and extending into the plug insertion hole extends along the shield frame.

[0014] The jack according to the invention of claim 3, claim
The body according to claim 1 or 2 , wherein the body has a rectangular cylindrical shape, and a concave notch is provided at each of front ends of two opposing walls of the body, and both ends of the shaft are formed with these concave portions. The concave notch is closed by the edge frame of the shield frame formed by bending the front end of the shield frame along the front end surface of the body while being fitted into the notch, and the notch is closed through the shaft. The lid is attached to the body so as to be able to swing open and close.

[0015]

In the structure described in claim 1, when the operation of inserting the plug into the plug insertion hole is performed, the lid is pushed by the plug, and the lid is pushed to the open position against the force of the elastic urging means. It moves along the wall surface of the plug insertion hole. When the plug is pulled out of the plug insertion hole from this state, the lid moves to the closed position by the force of the resilient urging means to close the opening of the plug insertion hole.

Further , the conductive lid moved to the open position by inserting the plug into the plug insertion hole is pressed against the plug-side shield frame by the force of the resilient biasing means and comes into contact with the shield frame. . At the same time, the contact piece of the lid is inserted through the through hole of the body and comes into contact with the contact piece of the shield frame on the jack side. Therefore, the plug-side shield frame and the jack-side shield frame are in electrical contact with each other via the conductive lid and the contact piece.

According to the second aspect of the present invention, the shield frame of the plug inserted into the plug insertion hole comes into contact with the shield frame on the jack side via the conductive lid and the contact piece. In addition, the contact piece contacts the jack-side shield frame via the contact piece.

According to the third aspect of the present invention, the closed position of the lid can be determined within the opening of the plug insertion hole in the body.

[0019]

1 and 2 are longitudinal side views of a jack according to the first, second and third embodiments of the invention.
1 is a front view of the jack as viewed from the direction of the arrow III in FIG. 1, FIG. 4 is a partially cutaway plan view of the jack as viewed from the direction of the arrow IV of FIG. 1, and FIG. 5 is a view of the jack with the shield frame omitted. FIG. 6 is a sectional view taken along the line VI-VI in FIG.

The body 1 is made of synthetic resin having excellent insulating properties and is integrally formed in a rectangular tube shape. The body 1 has a plug insertion hole 11 and a plurality of upper walls 17 in the left-right direction X. A through hole 7 is formed at a location.
A contact piece support wall 12 protrudes from the inside of the plug insertion hole 11, and an upper surface and a lower surface of the contact piece support wall 12, respectively, are provided.
A plurality of contact pieces 13 ..., 14 ... are arranged at equal intervals,
The terminals 13a... 14a... Respectively derived from these contact pieces 13... 14 are bent at right angles to the contact pieces 13. . Reference numerals 13b and 14b denote locking claws formed by cutting and raising the contact pieces 13 and 14. These locking claws 13b and 14b
Are engaged with the rear wall 15 of the plug insertion hole 11 and
4 is stopped.

As shown in FIG. 5 and FIG. 6, two side walls 16, 16 facing each other in the left-right direction X of the body 1.
Each of the sixteen front ends has a concave notch 2,
Both ends of the shaft 3 are fitted into the concave notches 2, 2. At the shaft 3, mounting portions 41 provided in a curl shape at a plurality of positions on the upper end portion of the lid 4 are rotatably fitted outside. As shown in FIGS. 1 to 3, a coil portion 51 of a torsion coil spring (hereinafter, referred to as a spring) 5, which is an example of a resilient urging means, is held on the shaft 3 in a fitted state. At the same time, the two legs 52 and 53 of the spring 5 are respectively elastically contacted with the upper wall 17 and the lid 4 of the body 1. As can be seen from FIGS. 1 and 3, the free end of the lid 4 is provided with contact pieces 42... Bent at substantially right angles at three places in the left-right direction. Projecting pieces 43, 43 are provided at the left and right corners of the section. In this embodiment, the lid 4 is made of a metal plate to impart conductivity to the lid 4, but instead of using a metal plate, the lid 4 is made of a plastic molded body on which a thin metal film is deposited. May be added.

Reference numeral 6 denotes a shield frame. The shield frame 6 is formed in a rectangular cylindrical shape, and is externally fitted to the body 1 from the front side. The shield frame 6 is provided with an edge frame 61 formed by bending four sides at the front end of the shield frame 6 inward. The edge frame 61 is superimposed on the front end surface of the body 1, and The recess 2 is closed by the edge frame 61. For this reason, the shaft 3 whose both ends are fitted into the concave notch 2 is prevented from being detached from the concave notch 2 by the edge frame 61 of the shield frame 6, and the lid 4 is inserted into the plug insertion hole. It is deployed in a state of being housed in the opening 18 of the hole 11. Further, the upper plate portion 62 of the shield frame 6 is formed with contact pieces 63... Extending forward by cutting and raising a plurality of locations inward, and these contact pieces 63. Each of the contact portions 63a faces the plurality of through holes 7 of the body 1 from above. Further, the lower plate portion 64 of the shield frame 6
A plurality of contact pieces 65 are provided in a folded shape at a plurality of positions at the front end of the plug 1.
The hole wall lower surface 1 of the plug insertion hole 11 in a form folded into
1b. Reference numeral 65a denotes a contact portion provided on the contact piece portion 65. Reference numeral 66 denotes a locking claw which is engaged with the engagement step 10 on the body 1 side to prevent the shield frame 6 from coming out of the body 1.

Here, the lid 4 opens the opening 18 of the plug insertion hole 11 about the shaft 3 to open an opening position along a predetermined position on the upper surface 11a of the hole wall as shown in FIG.
When the cover 4 is opened to the open position about the shaft 3, the contact piece 42 of the cover 4 One of the contact holes 63a of the contact piece 63 provided in the shield frame 6 is inserted through the one through hole 7. The lid 4 is constantly resiliently biased toward the closed position by the force of the spring 5. In addition, as can be seen in FIG.
The closing position of the lid 4 is regulated by the projections 43, 43 provided on the shield frame 6 contacting the inclined portions 68, 68 of the edge frame portion 61 in the shield frame 6.

In the above configuration, when the plug is not inserted into the plug insertion hole 11 of the jack, the lid 4 elastically urged by the force of the spring 5 is in the closed position as shown in FIGS. Thus, the opening 18 of the plug insertion hole 11 is closed. This prevents dust from entering the plug insertion hole 11 and preventing dust from adhering to the contact pieces 13..., 14.

When the operation of inserting the plug into the plug insertion hole 1 is performed, the lid 4 is pushed by the plug, and the spring 5 is pressed.
2 and moves along the hole wall upper surface 11a of the plug insertion hole 11 as shown by the arrow W in FIG. In this state, the lid 4 is pressed by the force of the spring 5 into contact with the plug-side shield frame provided around the outer periphery of the plug P, and at the same time, the contact piece 42 of the lid 4 is Through the contact portion 63a of the contact piece 63 of the shield frame 6 on the jack J side.
Therefore, the shield frame on the plug side and the shield frame 6 on the jack side are in electrical contact with each other via the conductive lid 4 and the contact piece 42 thereof. For this reason, the contact pieces 13... 14 of the jack J and the contact pieces (not shown) of the plug
Electrically conductive shield frame 6 on jack J side
And is shielded by being surrounded by the plug-side shield frame. In addition, the plug-side shield frame is connected to the jack J-side shield frame 6 via the contact piece 65.
Contact Therefore, despite the provision of the lid 4, the plug-side shield frame comes into contact with the jack J-side shield frame 6 at a plurality of upper and lower locations, so that the shielding performance is improved.

Incidentally, in order to surround the contact portion between the jack-side contact pieces 13 and 14 and the plug-side contact piece (not shown) with a metal frame to perform electrical shielding, the jack-side shield frame 6 and the plug-side contact frame are required. It is not enough to simply surround the contact point with the shield frame of the above, and it is effective that both shield frames are in contact at as many places as possible or over as large an area as possible. In this sense, as described above, the shield frame on the plug side and the shield frame 6 on the jack side are connected to the conductive lid 4 and the contact piece 42 thereof.
And that the shield frame on the plug side contacts the shield frame 6 on the jack J side via the contact piece 65, it is necessary to employ a structure in which both shield frames This is effective in increasing the shielding performance because it is useful for increasing the contact area and the contact area.

In addition, since the cover J is directly attached to the body 1 and the cover 4 is housed in the opening 18 of the plug insertion hole 11, the jack J is It is not necessary to secure a space for mounting the lid 4 on the front side or top panel of such a type, and the relative positional accuracy between the plug insertion position and the mounting position of the lid 4 is appropriate. Will be easier to keep.

In this embodiment, although the lid 4 is made conductive, the lid 4 may be non-conductive, and such a non-conductive lid may be used.
This is equivalent to the embodiment of FIG.

Further, in this embodiment, the lid 4 is of the upward opening type, but this point is not limited to the downward opening type or the horizontal opening type, and the lid is divided into two parts. It is also possible to attach each of them to a separate shaft and open each divided lid vertically or horizontally.

[0030]

According to the first aspect of the present invention, since the direction in which the plug is inserted into the plug insertion hole and the direction in which the lid is opened are the same, the lid is opened by the plug insertion operation. As a result, the operability at the time of plug insertion is improved. Also, when the lid is pulled out from the plug insertion hole, the lid is always closed by the force of the resilient urging means, and the opening of the plug insertion hole is closed.
There is an effect that dust prevention when not in use is reliably performed.

Further , by inserting the plug into the plug insertion hole, the plug-side shield frame and the jack-side shield frame are reliably brought into electrical contact with each other via the conductive lid and its contact piece to be integrated. Therefore, excellent shielding performance is exhibited.

According to the invention of claim 2, the contact area between the plug side shield frame and the jack side shielding frame is larger than that of Claim 2, excellent shielding performance can exert than of claim 2 Is done.

According to the third aspect of the present invention, since the cover is mounted in the opening of the body, the space for mounting the cover can be ensured inside the body, and the shield frame can be connected to the edge. By making it a square tube with a frame part, the lid, shaft and shield frame can be assembled to the body from the front, which has the advantage that a jack with excellent assemblability can be obtained. There is.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view of a jack according to an embodiment of the present invention of claim 1, 2 and 3 with a lid closed.

FIG. 2 is a longitudinal sectional side view of the jack according to the first, second and third embodiments of the present invention with the lid open.

FIG. 3 is a front view of the jack as viewed from the direction of arrow III in FIG. 1;

FIG. 4 is a partially broken plan view of the jack as viewed from the direction of arrow IV in FIG. 1;

FIG. 5 is a front view of the jack with the shield frame omitted.

FIG. 6 is a sectional view taken along the line VI-VI in FIG. 5;

[Explanation of symbols]

 J Jack (Jack type connector) P Plug (Plug type connector) 1 Body 3 Shaft 4 Lid 5 Spring (means for urging the lid elastically to the closed position) 6 Shield frame 7 Through hole 11 Plug insertion hole 11a, 11b Wall surface of plug insertion hole 16 Side wall (wall) 17 Upper wall (wall of body) 18 Opening of plug insertion hole 42 Contact piece 61 Edge frame part of shield frame 63, 65 Contact piece

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H01R 13/52 302 H01R 13/648 H01R 17/04 501

Claims (3)

(57) [Scope of request for utility model registration] 1. An insulating body having a plug insertion hole.
And the above plug inserted around the shaft attached to the body
Open the opening of the entrance hole and open it along the specified location on the wall surface of the hole.
Open and close swing between position and closed position to close the opening
Between the lid and the body and close the lid
A means for constantly resiliently biasing to the position side, a metal shield frame surrounding the periphery thereof is fixed to the body, the lid has conductivity, and a free end of the lid is provided.
Is provided with a contact piece bent in a substantially right angle direction, and when the lid is closed to a closed position about an axis, a through hole through which the contact piece is inserted is formed in a wall of the body. And a shield frame provided with a contact piece that faces the through hole and contacts the contact piece inserted into the through hole . 2. The plug frame, which is extended from the opening of the plug insertion hole to a position other than a predetermined position on the wall surface of the hole along which the lid is moved to the open position when the cover is moved to the open position. 2. The jack-type connector according to claim 1 , wherein a contact piece in a form of being folded is formed along the connector. 3. The body has a rectangular cylindrical shape, and a concave notch is provided at each of the front ends of two opposing walls of the body, and both ends of the shaft are fitted into these concave notches. In addition, the concave notch is closed by the edge frame of the shield frame formed by bending the front end of the shield frame along the front end surface of the body, and the lid opens and closes to the body via the shaft 2. The device according to claim 1, which is swingably mounted.
Or the jack type connector according to claim 2 .