JPH0650945Y2 - Lock guard for plug for modular connector - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plug connector fall prevention device for connecting a communication device to a line.

[0002]

2. Description of the Related Art FIG. 2 is a perspective view of a conventional plug for a modular connector, and FIG. 3A is an example of a lock guard for the plug for a conventional modular connector (Japanese Patent Application No. 2-17349).
FIG. 3B is a perspective view showing a state in which the lock guard shown in FIG. 3A is attached to the plug shown in FIG.

FIG. 5 is a perspective view of an example of a terminal to which a communication cable is connected using a plug equipped with a lock guard shown in FIG. 3B.

In FIG. 2, 10 is a plug of a modular connector, and 11 is a locking piece, which automatically locks when the plug 10 is inserted into a jack (not shown) of the modular connector. Reference numeral 12 is a slit for holding a communication cable.

In FIG. 3 (a), 1A is a lock guard, 1a is an upper guide, 1b is an end guide, and 1c is a protrusion that engages with the slit 12. 1d is a notch. As shown in FIG. 5, the plug 10 has a lock guard 1A.
When the plug is attached, the communication cable is connected to the plug, and the plug is inserted into the jack, the height of the lock piece 11 becomes
Since the height is almost the same as the upper surface of the lock guard 1A,
When the number of communication terminal devices used is small, it is easy to lock the lock piece 1 due to the tangle of the communication cable or the user's carelessness.
Since 1 is not pushed, there is no risk of the plug falling off.

[0006]

The problem to be solved by the present invention is that the conventional lock guard 1A is shown in FIG.
As shown in FIG. 2, since the lock piece 11 of the plug 10 is provided with the notch 1d for loosely fitting the lock piece 11 so that the lock piece 11 is not easily pushed, when the plug is pulled out, the lock piece is pulled with a thin screwdriver or a mechanical pencil. Since it is necessary to press 11 or press the lock piece after removing the lock guard 1A in advance, when using a large number of communication terminals or in the case of integrated communication equipment, maintenance inspection is required. In this case, it takes a lot of time to attach and detach the communication cable.

As described above, the present invention provides a lock guard that does not disengage when the communication cable is entangled or the lock piece of the plug is accidentally touched, and that can be disengaged without using a tool. To aim.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention inserts into a rear portion of a plug of a modular connector so that a locking piece of the plug does not project, and the plug is removable. It is designed to be easy.

That is, the lock guard of the present invention is integrally formed by an elastic member to have a predetermined thickness, and has both flexible side surfaces contacting both side portions of the plug and the both side surfaces along the lower surface of the plug. A bottom surface connecting the lower ends, and the bottom surface includes
Providing a protrusion that engages with a strut provided on the lower surface of the plug, the lower surface of the plug abuts the bottom surface when the protrusion engages a slit of the inserted plug, and At the upper end of the surface, flat portions facing each other and bent parallel to the bottom surface, inclined surface portions that incline downward at a predetermined angle from the end portions of the flat surface portions, and end portions of the inclined surface portions of the plug are respectively provided. The pressure contact portions that are in pressure contact with the upper surface are provided to face each other with a predetermined gap, and the gap is expanded by pressing the inclined surface portion to form a gap into which the lock piece of the plug can be inserted.

[0010]

Since the present invention is constructed as described above, it can be easily attached to the plug of the conventional modular connector and is locked at a predetermined position on the cable pull-out side of the plug, so that the terminal device can be used as it is. Can be inserted into the jack of the lock guard, both sides of the lock guard are almost the same height as the lock piece, and the lock piece cannot be pushed and the lock cannot be released unless the inclined surface is strongly pressed. Since the lock piece is not pushed even if the cable of the device is entangled or touched by mistake, it is possible to prevent the trouble caused by the plug coming off the terminal device.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1A is a perspective view of an embodiment of the present invention,
FIG. 1B is a perspective view of a plug equipped with the lock guard of the present invention.

In FIG. 1A, 1 is a lock guard of the present invention, 2 is a flat surface portion, 3 is a gap, 4 is an inclined surface portion, 5 is a pressure contact portion, 6 is a protruding portion, 7 is a bottom surface, 8 is a side surface. Is. Figure 1
In (b), 10 is a plug, 11 is a lock piece, and 1
3 is a communication cable.

As shown in FIG. 1 (a), the lock guard 1 of the present invention is formed of an elastic member and has three surfaces with an open top. Both side surfaces 8 are integral with the bottom surface 7 and the bottom surface 7 is Is formed with a protrusion 6, which engages with the slit 12 of the plug 10 when mounted on the plug 10 shown in FIG. As a result, the rear surface of the plug 10 and the rear surface of the lock guard 1 are aligned and fixed.

Since the flat surface portion 2, the inclined surface portion 4, and the pressure contact portion 5 are integrally formed of elastic members on the upper portions of both side surfaces, when the inclined surface portion 4 is depressed, both side surfaces are bent and the pressure contact portion 5 is pressed. The width of the gap formed by is increased.

Therefore, when the lock guard 1 is attached to the plug 10 as shown in FIG. 1 (b), the lock pieces 11 enter between the inclined surface portions 4 on both sides of the lock guard 1, and
The height of the lock piece 11 is the flat portion 2 on both sides of the lock guard 1.
Since the height of the lock piece 11 is substantially the same as the height of the lock piece 11, even if the communication cable of another device is entangled, the lock piece 11 is not pushed down. Also, if you touch it accidentally,
Since the lock piece 11 does not hit the press contact portion 5 any further, there is no possibility that the lock will be broken and the plug will fall out.

When the plug 10 is pulled out, the lock piece 11
When the finger is pressed down strongly with the finger, the finger hits the inclined surface portion 4 and the pressure causes the both side surfaces 8 of the lock guard 1 to bend, and the gap 3 formed by the pressure contact portion 5 expands, and the lock piece enters between them. So you can unlock it.

FIG. 4 is a rear view of an example of a communication terminal using a plug equipped with a lock guard according to the present invention. 1 is a lock guard, 11 is a lock piece, 13 is a communication cable, and 21 is a communication terminal.

[0018]

As described above in detail, since the present invention is configured as described above, when a plurality of communication terminals connected to a line using the modular connector are installed and operated, the modular connector is used. By inserting the lock guard of the present invention into the plug of the present invention, the lock piece of the plug does not protrude, so even if the cable is entangled or touched accidentally, the lock piece will not be pushed, so the plug will not come off It is possible to prevent contact failure due to disconnection of the plug or failure due to line disconnection.

[Brief description of drawings]

1A is a perspective view of an embodiment of the present invention, and FIG. 1B is a perspective view of a plug equipped with a lock guard of the present invention.

FIG. 2 is a perspective view of a conventional plug for modular connector.

3A is a perspective view of an example of a lock guard of a conventional plug for a modular connector. FIG. 3B is a perspective view showing a state in which the lock guard shown in FIG. 3A is attached to the plug shown in FIG. Figure

FIG. 4 is a rear view of an example of a communication terminal using a plug equipped with a lock guard according to the present invention.

FIG. 5 is a perspective view of an example of a terminal to which a communication cable is connected using a plug equipped with a lock guard shown in FIG.

[Explanation of symbols]

 1 Lock Guard 2 Flat Surface 3 Gap 4 Sloping Surface 5 Pressure Contact 6 Protrusion 7 Bottom 8 Side 10 Plug 11 Lock Piece 12 Slit 13 Communication Cable 1A Lock Guard 1a Upper Guide 1b End Guide 1c Projection 1d Notch 20 Connector Type campus modem 21 Communication terminal

Claims (1)

[Scope of utility model registration request] 1. A lock guard, which is inserted into a rear end of a plug for a modular connector and prevents the lock piece of the plug inserted into the jack of the modular connector from being accidentally pressed to release the lock. , Integrally formed to a predetermined thickness by an elastic member, and has flexible side surfaces that come into contact with both side portions of the plug, and bottom surfaces that connect the lower ends of the both side surfaces along the lower surface of the plug. , The bottom surface is provided with a protrusion that engages with the strut provided on the lower surface of the plug, and when the protrusion engages with the slit of the inserted plug, the lower surface of the plug is attached to the bottom surface. A flat surface portion that is in contact with each other and is bent parallel to the bottom surface at the upper ends of the both side surfaces, an inclined surface portion that inclines downward at a predetermined angle from the end portion of the flat surface portion, and an inclined surface portion of the inclined surface portion. At the end Pressure contact portions that are in pressure contact with the upper surface of the plug are provided facing each other with a predetermined gap, and the gap is expanded by pressing the inclined surface portion to form a gap into which the lock piece of the plug can be inserted. A lock guard for a plug for a modular connector, which is characterized by being a thing.