JPH079822B2 - Telephone module - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a telephone modular jack, and more specifically, a modular block to which a plug inserted through a plug insertion opening formed on one surface of a casing is detachably coupled is provided in the casing. It is about the telephone modular jack.

[Background Art] In this type of telephone modular jack that has been conventionally provided, as shown in FIG. 8 and FIG.
There is provided a plug insertion port 61 provided with a door 4 so as to prevent dust from entering the plug insertion port 61 and the entry of foreign matter when the plug is not attached. However, since the conventional door 4 is positioned by the holding ribs 25 'formed on the inner peripheral surface of the cover 12 forming the casing 1, as shown in FIG. It was necessary to turn the inside out, install the door 4, and then join the body 11 with the modular block 2 attached thereto with the cover 12. Here, when the terminal portion and the modular block 2 are assembled in the body 11, the body 11 is assembled in an upside-down state as compared with FIG.
It was necessary to reverse the direction of, and the assembly work was troublesome.

[Object of the Invention] The present invention has been made in view of the above points, and an object thereof is to hold a door in a modular block so that an assembly work can be performed without turning the cover over. Therefore, it is to provide a telephone modular jack that facilitates assembly work.

DISCLOSURE OF THE INVENTION (Structure) The telephone modular jack according to the present invention is a telephone modular jack provided with a modular block in a casing to which a plug inserted through a plug insertion opening opened on one surface of a casing is detachably coupled. The casing consists of a body to which the modular block is attached and a cover that is integrally connected to the body while the plug insertion opening is open, and is located between the inner peripheral surface of the cover and the modular block at a position corresponding to the plug insertion opening. Is equipped with a door that is slidable parallel to the plug insertion port, and a modular block is formed with a holding rib that slidably holds the door on one surface of the plug insertion port side. By holding with a modular block, assembly work can be performed without turning the cover over. It is obtaining way.

(Embodiment 1) In the following description, the front side in FIG. 1 will be referred to as the lower side and the upper side in FIG. 2 will be referred to as the front side.
The terms indicating these directions are used for convenience of description and do not limit the mounting direction.

As shown in Fig. 1, the telephone modular jack is
Basically, it is composed of a casing 1 composed of a body 11 and a cover 12, a modular block 2 and a terminal block 3 housed in the body 11, and a door 4 arranged at a plug insertion opening 21 of the modular block 2. , Body 1
1, the cover 12 and the door 4 are made of an insulating material such as synthetic resin. In particular, a thermoplastic resin is used for the body 11.

The outer dimensions of the casing 1 are standardized so that they can be attached to a ready-made mounting frame, and are set to dimensions corresponding to one module of the wiring equipment module. It can be attached to the mounting frame. Outer flange pieces 13 are respectively extended on both left and right sides of the front end of the body 11, and each outer flange piece 13 is formed with a coupling hole 14 penetrating forward and backward. On the other hand, on the left and right ends of the rear end of the cover 12
17 are extended, and coupling leg pieces 16 each having a hook 15 at the tip end are extended on both left and right sides of the rear surface of each outer flange piece 17. Therefore, by inserting the coupling leg piece 16 into the coupling hole 14 and locking the hook 15 in the coupling hole 14, the body 11 and the cover 12 are integrally coupled as shown in FIG.

The inside of the body 11 is divided into three left and right sections by a pair of partition pieces 51 running in the vertical direction. The central compartment serves as a modular storage portion 52 in which the modular block 2 is stored. On the surface of the partition 51, which is the inner side surface of the modular storage part 52, a bottom-up rib 54 that runs in the front-rear direction is projected, and as shown in FIG. 2, the modular block 2 is mounted inside the body 11. The rear surface of the modular block 2 is adapted to float above the bottom surface of the body 11. Each of the left and right compartments in the body 11 is partitioned by a partition piece 55 that runs to the left and right, and a terminal housing portion 53 having a size capable of housing one terminal block 3 is formed. A partition rib 56 running in the front-rear direction is formed on the surface of the partition 51, which is the inner side surface of the terminal housing 53, at the upper and lower central positions of the terminal housing 53.

The cover 12 has a plug insertion opening 61 opening at the center of the front surface. A pair of locking claw pieces 62 are projectingly provided on the tip edges of the left and right outer brim pieces 17 of the cover 12, and a locking recess 63 is provided on a step formed at the base of the outer brim piece 17. Is formed. The plug insertion port 61 has a substantially rectangular shape, and has a notch portion 64 formed in a two-step step shape in the lower portion.
When the cover 12 is coupled to the body 11, a space having an appropriate thickness is formed between the front surface of the modular block 2 mounted on the body 11 and the rear surface of the opening peripheral edge of the plug insertion opening 61 of the cover 12.

The modular block 2 has a modular main body 21 formed of an insulating material such as synthetic resin, and the modular main body 21 is formed with a plug insertion hole 22 penetrating in the front-rear direction. An elastic linear contact pin is provided in the plug insertion hole 22.
When a plug (not shown) is inserted through a plug insertion opening 61 opening in the front surface of the casing 1, each contact pin 23 makes elastic contact with each corresponding contact of the plug. It is designed to be electrically connected to each other. Lead wires 24 electrically connected to the contact pins 23 are drawn out from the rear side surface of the modular body 21. Also,
Retaining ribs 25 project forward from the left and right sides of the front surface of the modular body 21, and the amount of protrusion of the retaining ribs 25 is formed between the front surface of the modular body 21 and the rear surface of the cover 12. It is set approximately equal to the thickness of the space.

The terminal block 3 is composed of a U-shaped terminal frame 31 made of a conductive material and opened rearward, and a locking spring 32 made of a spring material and mounted in the terminal frame 31. As shown in FIG. 4, the terminal frame 31 has a slit 33 running in the front-rear direction on one leg piece, and a cut-and-raised piece cut and raised with a U-shaped opening side left at the center of the other leg piece. A piece 34 is formed. Meanwhile, locking spring
32, the sheet metal is folded back in two at the front end to form a pair of left and right base pieces 35a, 35b, and the front end portions of the respective base pieces 35a, 35b are folded back diagonally forward with respect to the base pieces 35a, 35b. It has a shape in which a pair of chain pieces 36a, 36b are formed. The locking spring 32 has slits 37a, 37b extending from the central portion of each base piece 35a, 35b to the tip of each corresponding locking piece 36a, 36b, and both upper and lower sides of each locking piece 36a, 36b are formed. The halves can independently exert a spring force. Further, when the locking spring 32 is attached to the terminal frame 31, as shown in FIG. 3, the ends of the slits 37a, 37b on the base pieces 35a, 35b side are cut and raised pieces.
The lock spring 32 is retained by the terminal frame 31 and is blocked by the terminal frame 31. Here, if the locking spring 32 is formed to such an extent that the locking pieces 36a, 36b of the locking spring 32 elastically contact one leg of the terminal frame 31, the holding of the locking spring 32 with respect to the terminal frame 31 will be further enhanced. You can be sure. Also, since the telephone wire used has a diameter of 0.4 to 0.65 mm and is very thin, the gap between the leg piece of the fine frame 31 and the tip of the locking pieces 36a, 36b is very small, or No gap is formed. Further, since the locking pieces 36a and 36b exert the spring force independently, one terminal block 3
For this, two telephone lines can be connected.

The terminal block 3 formed as described above is housed in the terminal housing portion 53 of the body 11 as described above. At this time, the partition ribs 56 are inserted into the slits 33, 37a, 37b of the terminal frame 31 and the lock spring 32, so that the terminal block 3 is positioned and the pair of terminals connected to the terminal block 3 is connected. The telephone lines 5 are not in contact with each other and are not entangled. In this way, the terminal frame 31 and the locking spring 32 are assembled into the body 11 in the state of being assembled into one terminal block 3, so that the locking spring and the terminal frame are sequentially installed in the body 11. It is easier to assemble than the ones. A cut-and-raised piece cut forward on the center piece of the terminal frame 31.
38 is formed, and the cut-and-raised piece 38 is formed with a press-fitting slit 39 that is open to the front. However, each lead wire 24 pulled out from the modular block 2 is inserted into this press-fit slit.
The lead wire 24 can be connected to the terminal frame 31 by press-fitting into the terminal frame 39, and the contact pins 23 of the modular block 2 are electrically connected to the corresponding terminal blocks 3. As shown in FIG. 3, on the rear surface of the body 11, a wire insertion port 57 is opened at a position corresponding to between the leg piece of the terminal frame 31 and the tip portions of the locking pieces 36a, 36b. A release piece 58 is formed integrally with the body 11 adjacent to the mouth 57. The release piece 58 is formed in a U-shape that opens forward, and the tip of one leg piece is provided at a position where it can abut the rear lock piece 36b, and the release piece 58 extends from the rear side surface of the body 11 to the rear surface. The slits 59 are separated by a pair of slits 59 and are flexible with respect to the body 11.

By the way, a door 4 is attached to the plug insertion opening 61 in order to prevent dust and the like from entering the casing 1 through the plug insertion opening 61 when the plug is not inserted. Door 4
Is a pair of upper and lower door bodies as shown in FIG. 1 and FIG.
It is composed of 41 and 42, and is mounted in the space between the front surface of the modular block 2 and the rear surface of the opening peripheral edge of the plug insertion opening 61 of the cover 12. Both door bodies 41, 42 are mounted in a holding rib 25 projecting over substantially the entire circumference of the front surface of the modular block 2, and guided by the holding rib 25 so as to be slidable up and down. The upper end of the lower door 42 is the upper door 41
Is arranged so as to overlap behind. The lower door body 42 has a central portion in the left-right direction, and an operation piece 43 is projected from the lower end portion of the front surface.
Is set to be approximately equal to the left and right width of the bottom. Operation piece 43
Is set to a protrusion amount such that it slightly protrudes from the front surface of the cover 12. In this way, the upper door 41 has a plug insertion port.
The upper half of 61 is closed, and the lower door 42 closes the lower half of the plug insertion opening 61. It should be noted that the upper door body 41 is locked by an appropriate locking means such as a locking rib so that the upper door body 41 does not drop downward when the door 4 closes the plug insertion opening 61.

When inserting the plug into the plug insertion opening 61 provided with the door 4 as described above, the plug is brought into contact with the lower surface of the operation piece 43 and moved so as to push up the operation piece 43 to move the lower door body.
While pushing up 42, introduce it into the plug insertion opening 61. When the upper surface of the plug comes into contact with the lower edge of the upper door body 41, the upper door body 41 also moves upward together with the lower door body 42, the plug insertion opening 61 is opened, and the plug can be inserted into the plug insertion opening 61. On the contrary, when the plug is pulled out from the plug insertion opening 61, both door bodies 41 and 42 drop downward by their own weight, and the plug insertion opening 61 is automatically closed. That is, when inserting the plug, the operation of opening the door 4 and the introduction into the plug insertion opening 61 are performed in a series of operations, and conversely, when the plug is removed, the door 4 is automatically closed.

The telephone modular jack configured as described above can be mounted on a ready-made mounting frame 71 to which a wiring device module can be mounted, as shown in FIG. This mounting frame 71 is made of synthetic resin, and the wiring equipment module is vertically 3
The size is such that they can be held side by side. Fifth
As shown in FIGS. 6 and 6, the left vertical frame 72 of the mounting frame 71 is provided with a pair of locking holes 73 at positions corresponding to the mounting positions of the wiring device modules, and the right vertical frame 74 is provided with A side frame 75 is provided at a position corresponding to the mounting position of each wiring device module, apart from the right vertical frame 74. Releasing pieces 76 project from the center of each side frame 75, and a holding hole surrounded by the right vertical frame 74, the side frame 75, and the releasing piece 76 is formed on both sides of the releasing piece 76. However, when the locking claw pieces 62 protruding from the left and right of the casing 1 of the telephone modular jack are inserted into the locking hole 73 and the holding hole 77, the casing 1 is held by the mounting frame 71. To remove the casing 1 from the mounting frame 71, a jig such as the tip of a driver is used to press the release piece 76 so as to increase the distance between the right vertical frame 74 and the side frame 75. The engagement with is released. Horizontally long mounting holes 78 for mounting to the switch box 6 and screw holes 79 for screwing a decorative plate (not shown) are formed at both upper and lower ends of the mounting frame 71. As the mounting frame 71, a metallic one is also provided, and the metallic mounting frame 71 has a locking claw that can be inserted into the locking hole 63 provided in the casing 1 formed on the inner edge of the opening. The casing 1 is held by plastically deforming a part of the mounting frame 71 so that the pawl is inserted into the locking hole 63.

(Embodiment 2) In this embodiment, as shown in FIG. 7, instead of forming the holding rib 25 on the front surface of the modular block 2, a holding groove 26 is formed and the doors 41, 42 are respectively held on the rear surfaces thereof. The projection 44 is provided so as to project, and the holding projection 44 is inserted into the holding groove 26 to hold the door 4 in the modular block 2. Here, the holding groove 26 is formed so that the inner portion is wider than the opening portion, and the holding projection 44 is formed such that the front end portion is wider than the base portion so as to match the holding groove 26. Therefore, the door 4 is prevented from falling off the modular block 2 forward.

[Effect of the Invention] As described above, the present invention is a telephone modular jack having a modular block in which a plug inserted through a plug insertion opening opened on one surface of the casing is detachably coupled, and the casing is modular. It consists of a body with a block attached, and a cover that is integrated with the body while the plug insertion opening is open.A plug is inserted between the inner peripheral surface of the cover and the modular block at a position corresponding to the plug insertion opening. A door that is slidable parallel to the mouth is arranged, and a retaining rib that slidably holds the door is formed on one side of the plug insertion port side of the modular block. The door is placed on the modular block because it is held by the holding rib formed on the one side of the insertion port After that, the cover can be fitted and assembled from above, which has an advantage that the assembly work can be performed without turning over the cover. As a result, the automation of the assembly is facilitated, and it is possible to prevent the assembly failure due to the door being excellent.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention, FIG. 2 is a partially cutaway plan view of the same as above, FIG. 3 is a sectional view of an essential part of the same, and FIG. 4 is an exploded perspective view of an essential part of the same. 5, FIG. 5 is a front view of the same frame mounted on the mounting frame, FIG. 6 is a perspective view of the mounting frame used for the same, and FIG. 7 is an exploded perspective view of essential parts showing another embodiment. FIG. 9 is a perspective view showing a telephone modular jack according to the present invention, FIG. 9 is a sectional view showing a conventional example, and FIG. 10 is an exploded perspective view showing a conventional assembling method. 1 is a casing, 2 is a modular block, 3 is a terminal block, 4 is a door, 25 is a holding rib, and 61 is a plug insertion port.

Claims (1)

[Claims] 1. A telephone modular jack having a modular block in which a plug inserted through a plug insertion opening opened on one surface of the casing is detachably coupled, wherein the casing is a body to which the modular block is mounted, It consists of a cover that opens at the plug insertion port and is integrally connected to the body, and is slidable between the inner peripheral surface of the cover and the modular block at a position corresponding to the plug insertion port, parallel to the plug insertion port. A telephone modular jack characterized in that a door is disposed, and a retaining rib for slidably retaining the door is formed on one surface of the modular block on the plug insertion port side.