JP2007200800A - Connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector (50) in which fixing of this plug is easier and the body can be made more light-weighted, when a plug having a male screw for fixing is connected. <P>SOLUTION: When the connector comprises the body part (50A) and a turning part (50B), which is rotated about a shaft (5a) installed at the body part, and the body part (50A) is provided with the male screw (20) for fixing that protrudes on the connector (50) side, a first pinching part (3c) and a second pinching part (3b), which are opposite, pinching a screw part (20a) of the male screw (20) at the attached plug (P) are provided, and the first pinching part (3c) has a flexibility in a direction of toward the second pinching part (3b). The turning part (50B) is rotated in the direction separated against the first pinching part (3c), and presses the first pinching part (3c), in a direction toward the second pinching part (3b), and pinches the male screw (20) with the first and second pinching parts (3c, 3b) within a prescribed turning angle range. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a connector, and more particularly to a connector having a lock structure for fixing a mounted plug.

Generally, when connecting electronic devices with a cable, the connection is performed by attaching a plug on the cable side to a connector on the electronic device side.
As an example of this connection, there is a cable connection between an external video monitor for computers and a computer. In this case, a so-called D-sub type connector is often used as a connector.

Further, many plugs and connectors used in such applications are provided with a lock structure for preventing the plug from being detached from the connector.
As an example of this lock structure, there is a structure in which after a plug is attached to a connector, a male screw provided on the plug side is screwed to a female screw provided on the connector side.
In this structure, each screw is generally formed of metal so that the screw thread does not collapse by repeated screwing.

Examples of plugs and connectors having such a lock structure are disclosed in Patent Document 1 and Patent Document 2.
JP 7-226263 A JP 2002-170634 A

By the way, for example, electronic devices are always required to be reduced in weight from the market. However, as described above, a connector for fixing a conventional screw with a screw is heavy because the female screw is formed of metal. Therefore, it has been desired to reduce the weight of the connector body.
In addition, D-sub plugs or cables including the same have been widely used, and it has been demanded that a plug having a male screw for fixing can be fixed even when the weight of the connector is reduced.

In many cases, the position where the connector is disposed in the electronic device is a recessed portion on the side surface or the back surface. In addition, a plurality of connectors are usually arranged adjacent to each other, and a plurality of cables connected to these connectors are extremely dense.
Accordingly, it is not easy to rotate the male screw and fix the plug to the connector as in the prior art, and there has been a demand for a fixing structure that can be easily fixed.

  Therefore, the problem to be solved by the present invention is to provide a connector that can be easily fixed when a plug having a male screw for fixing is connected, and can reduce the weight of the main body.

In order to solve the above problems, the present invention has the following configurations 1) and 2) as means.
1) A connector to which a plug is attached,
The main body portion (50A) and a rotating portion (50B) that rotates around a shaft (5a) provided in the main body portion (50A),
When the plug (P) includes a fixing male screw (20) protruding toward the connector (50), the main body portion (50A) has the male screw in the plug (P) attached. A first clamping part (3c) and a second clamping part (3b) facing each other across the screw part (20a) of (20),
The first clamping part (3c) has flexibility in a direction toward the second clamping part (3b),
The rotating portion (50B) rotates in a direction away from and in contact with the first holding portion (3c), and the first holding portion (3c) is moved in the predetermined rotation angle range. Connector (2) configured to be pressed in the direction toward the second clamping portion (3b) and to clamp the male screw (20) by the first and second clamping portions (3c, 3b). 50).
2) The connector according to claim 1, wherein the rotating portion (50B) covers the shell (2) of the connector (50) by rotation when the plug (P) is not attached. (50).

  According to the present invention, it is possible to fix a plug having a fixing male screw, and it is possible to reduce the weight of the main body.

The preferred embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG.
FIG. 1 is a perspective view for explaining an embodiment of the connector of the present invention.
FIG. 2 is a side view for explaining the plug fixing operation in the embodiment of the connector of the present invention.

As shown in FIG. 1, the connector 50 according to the embodiment includes a main body 50A and a lid 50B.
First, the main body 50A will be described.

The main body 50A has a base 1 having a substantially L-shaped side surface, and a shell 2 having a substantially D-shaped end surface is disposed on the base 1 so as to protrude toward the front side of the figure.
The base 1 is made of resin, and the shell 2 is made of metal.
A plurality of female terminals 2a are arranged inside the shell 2, and the female terminals 2a are insulated from the surrounding shell 2 by an insulating portion 2b.

On both sides of the shell 2 in the base 1, a pair of hook-shaped protrusions 3 are provided. The protruding portion 3 is a screw fixing portion 3 for fixing a fixing screw 20 (described later) on the side of a plug P (described later) attached to the connector 50, and details thereof will be described later.
On the bottom surface of the base 1, a plurality of terminal pins 4 electrically connected to the plurality of female terminals 2a respectively extend downward in FIG. When the connector 50 is mounted on an electronic device, the terminal pin 4 is electrically connected to a wiring board pattern on the electronic device side.
Above the shell 2 in the base 1, a pair of arm portions 5 projecting at an interval substantially corresponding to the longitudinal width of the shell 2 is formed.
A cylindrical pin 5 a that protrudes toward the outside in the longitudinal direction of the base 1 is formed on the distal end side of each arm portion 5.

The screw fixing portion 3 is divided into two projecting portions 3 b and 3 c by a slit 3 a cut along the longitudinal direction of the base 1.
Specifically, in FIG. 1, there are two of a receiving protrusion 3 b that is the lower side and a pressing protrusion 3 c that is the upper side.

  On the slit 3a side of the receiving side protruding portion 3b, there is formed a screw receiving portion 3b1 having a circular arc-shaped cross section and extending along the short direction of the base 1, and on the surface of the screw receiving portion 3b1. Is formed with a concave-convex engaging portion 3b2 corresponding to the thread shape of the fixing screw 20 of the plug P attached to the connector 50.

  On the slit 3a side of the pressing protrusion 3c, a screw receiving part extending in the short direction of the base 1 in the shape of a circular arc in cross section so as to face the screw receiving part 3b1 of the receiving side protruding part 3b 3c1 is formed, and a concave and convex engaging portion 3c2 corresponding to the thread shape of the fixing screw 20 is formed on the surface of the screw receiving portion 3c1.

Further, a chamfered portion 3c3 is formed on the tip side of the surface of the pressing protrusion 3c opposite to the slit 3a. Similarly, a cut portion 3c4 that reduces the thickness is formed on the base side.
Therefore, the pressing protrusion 3c is formed of a resin material and can be easily bent to the slit 3c side (receiving side protrusion 3b side) by forming the notch 3c4.
On the other hand, the receiving side protrusion 3b has a sufficiently large thickness on the root side and is formed so as not to be easily bent.

Next, the lid 50B will be described.
The lid portion 50B is formed of a resin, and includes a flat cover portion 51 and a pair of pressing arm portions 52 that extend from both ends of the side portion that is the length of the cover portion 51. .

The opposing surfaces 52a of the pair of pressing arm portions 52 are provided with holes 52b that engage with the pins 5a provided on the arm portion 5 of the base 1 in the main body portion 50A. By bending, the pin 5a is fitted into the hole 52b, and both are integrated (FIG. 1 is a perspective view showing a state before fitting).
In this state, the interval between the opposing surfaces 52a in the pressing arm portion 52 is set to be slightly larger than the interval between both outer side surfaces 5b in the arm portion 5, so that the lid portion 5B has the pin 5a attached to the main body portion 50A. It can be rotated as an axis. The center axis of the pin 5a is denoted by CL in each figure.

An end surface 52c on the distal end side of the pressing arm portion 52 is formed in a predetermined curved surface that is convex, and the distance from the rotation center CL of the curved surface is also set to a predetermined distance.
Specifically, it is set so that the end surface 52c abuts against the pressing protrusion 3c of the base 1 and further presses it when the rotational position of the lid 5B is within a predetermined angle range.

On the other hand, the short side length L of the cover 51 is set to a length that can completely cover the shell 2 when the lid 50B is rotated.
Further, on the outer surface of the cover portion 51, as shown in FIG. 1, a terminal name NM (for example, MONIT.IN) applied when the connector 50 is mounted on an electronic device can be marked greatly. it can. This is not limited to the stamp, but may be displayed by sticking a sticker or the like.

FIG. 2A shows a side view of the connector 50 in a state where the lid 50B is rotatably attached to the main body 50A.
This is a state in which the plug P is not attached to the connector 50, and the cover portion 50 </ b> B rotates counterclockwise in the drawing by its own weight and covers the cover portion 51.

  Further, since the terminal name NM of the cover portion 51 can be easily visually recognized, the connector to which the plug P is to be attached can be easily specified when a plurality of connectors 50 are provided, and erroneous connection is prevented. .

Next, the connection of the plug P to the connector 50 will be described in detail.
As shown in FIG. 2B, the plug P is provided at the end of the cable CBL, and includes a main body P1 and a plug shell P2 that protrudes from the main body P1 and engages with the shell 2 of the connector 50.
A pair of fixing screws 20 (hereinafter also simply referred to as male screws 20) that are male screws are provided on both sides of the plug shell P2, and the screw receiving portions 3b1 and 3c1 of the protruding portion 3 of the base 1 are The arrangement position is set so that the male screw 20 is engaged.

When the plug P is attached to the connector 50, first, the lid 50B is rotated in the clockwise direction D1 from the state shown in FIG. 2A to the state shown in FIG.
In the middle of this rotation, the end surface 52c of the pressing arm 52 abuts against the pressing protrusion 3c and bends it downward in the figure. However, when the rotation is further advanced, the contact is released and the two are separated. 2B is reached.

In this state, the plug shell P2 of the plug P is pushed into the shell 2 of the connector 50.
Following this pushing, the main body portion P1 of the plug P gradually approaches the main body portion 50A of the connector 50, and the fixing screw 20 is inserted between the screw receiving portions 3b1 and 3c1 of the screw fixing portion 3.
At this time, it is desirable to push in the fixing screw 20 so that the protruding amount of the screw portion 20a toward the connector 50 is maximized.

When the plug P is sufficiently inserted into the connector 50, the lid 50B is rotated in the counterclockwise direction D2 in the drawing.
Then, as shown in FIG. 2 (C), the end surface 52c of the pressing arm portion 52 comes into contact with and presses the chamfered portion 3c3 of the pressing protrusion 3c, and the pressing protrusion 3c is bent in the downward direction D3 in the figure. I will.
Thereby, the engaging portions 3b2 and 3c2 of the screw receiving portions 3b1 and 3c1 are engaged with the thread of the screw portion 20a of the fixing screw 20, and the fixing screw 20 is held by the screw fixing portion 3. That is, the plug P is fixed so as not to come out of the connector 50.

When removing the plug P, first, the lid 50B is rotated in the clockwise direction D1 of FIG.
Then, the contact of the end surface 52c of the pressing arm portion 52 with the chamfered portion 3c3 is released, the fixing screw 20 can be detached from the screw fixing portion 3, and the plug P can be removed.

  As described above, according to the connector 50 described in detail, since the plug P can be fixed by holding the plug P by simply rotating the lid 50B without screwing, the plug P can be fixed. Can be fixed very easily.

  In addition, since the fixing screw 20 can be held by a resin material member (screw fixing portion 3) instead of a metal material, the connector 50 can be made lighter.

  Further, since the shell 2 and the female terminal 2a are covered with the cover 51 when the plug P is not attached to the connector 50, a dustproof effect is obtained, and dust or the like enters the female terminal 2a. Connection failure can be prevented.

  Moreover, although it repeats, since the terminal name NM can be displayed large on the outer side surface 51a of the cover part 51, the connector 50 to which the plug P is to be attached can be easily specified, and erroneous connection is prevented.

  The embodiments of the present invention are not limited to the above-described configuration, and modifications may be made without departing from the spirit of the present invention.

The connector 50 can be applied to a D-sub connector, but needless to say, can be applied to other types of connectors.
When the dust-proof function is not necessary, the cover portion 51B does not have to cover the shell 2 completely.

It is a perspective view explaining the Example of the connector of this invention. It is a side view explaining the plug fixing operation | movement in the Example of the connector of this invention.

Explanation of symbols

1 Base 2 Shell 2a Female terminal 2b Insulating part 3 Protruding part (screw fixing part)
3a Slit 3b Receiving side protruding portion 3b1 Screw receiving portion 3b2 Engaging portion 3c Pressing protruding portion 3c1 Screw receiving portion 3c2 Engaging portion 3c3 Chamfered portion 4 Terminal pin 5 Arm portion 5a Pin 5b Side surface 20 Fixing screw (male screw)
20a Screw part 50 Connector 50A Body part 50B Cover part 51 Cover part 51a Outer side surface 52 Pressing arm part 52a Opposing surface 52b Hole 52c End surface CL Rotating shaft NM Terminal name P Plug P1 Body part P2 Plug shell

Claims (2)

A connector to which a plug is attached,
It consists of a main body part and a rotating part that rotates around an axis provided in the main body part,
When the plug includes a fixing male screw protruding toward the connector, the main body includes a first holding portion and a first holding portion facing each other with the screw portion of the male screw in the attached plug interposed therebetween. Two clamping parts,
The first clamping part has flexibility in a direction toward the second clamping part,
The rotating portion rotates in a direction to be separated from and in contact with the first holding portion, and presses the first holding portion in a direction toward the second holding portion in a predetermined rotation angle range. Then, the connector is configured to hold the male screw between the first and second holding portions.   The connector according to claim 1, wherein the rotating portion covers the shell of the connector by rotation when the plug is not attached.

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