JPS6381771A - Telephone modular jack - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a telephone mono error jack, and more particularly, a mono error block is provided in a casing to which a plug inserted through a plug insertion opening opened on one side of the casing is detachably connected. This relates to a telephone moanilar jack for use in the future.

[Background Art] In this type of telephone modular jack that has been provided conventionally, as shown in FIG.
Since the terminal part for connecting to the telephone line 5 was a screw terminal equipped with a terminal screw 7, it took time to loosen and tighten the terminal screw 7, and the tightening torque varied depending on the installer. There was a problem in that the connection order of M could not be guaranteed.

In order to solve this problem, it is possible to use a connecting terminal as shown in FIGS. 8, the number of parts was large and the assembly work was troublesome.

[Objective of the Invention 1 The present invention has been made in view of the above-mentioned points, and its object is to use a terminal section as a connecting terminal so that a worker can obtain constant connection reliability regardless of the operator. To provide a telephone modular jack in which the number of parts is reduced by integrally providing a release piece corresponding to a release button in the casing at the connection terminal.

[Disclosure of the Invention 1 (Structure) The telephone modular jack according to the present invention includes a mono error block in the casing to which a plug inserted through a plug insertion opening opened on one side of the casing is detachably connected. In the telephone modular 7 jack, which has terminal parts that are electrically connected to the contact pins of the block, the terminal parts are made of a terminal frame made of a conductive material and a spring material, and apply a spring force in the direction of approaching the terminal frame. and a locking spring that clamps the electric wire between it and the terminal frame, and a release piece that presses the locking spring in a direction that weakens the spring force of the locking spring toward the terminal frame by creating an external force. is formed integrally with the casing, and by providing a release piece corresponding to the release button in the connection terminal integrally with the casing, the number of parts can be reduced.

(Example) In the following explanation, the upper side in Fig. 1 is assumed to be the front, and the near side in Fig. tA2 is assumed to be the lower side.
Terms indicating these directions are used for convenience of explanation, and do not limit the mounting direction.

As shown in Figure 2, the telephone module error jack is
Basically, it consists of a casing 1 consisting of a body 11 and a cover 12, a mono error block 2 and a terminal block 3 housed in the body 11, and a door 4 disposed in a plug insertion slot 21 of the mono error block 2. configured,
The body 11, cover 12, and door 4 are made of an insulating material such as synthetic wood tray. In particular, thermoplastic resin is used for the body 11.

The external dimensions of the casing 1 are set to the dimensions equivalent to one monoale of a standardized wiring equipment module so that it can be attached to a ready-made mounting frame, and as described later, the outer dimensions of the casing 1 are set to be equivalent to one monoale of a standardized wiring equipment module so that it can be attached to a ready-made mounting frame. It can now be attached to the mounting frame. Outer flange pieces 13 extend from both left and right sides of the # end of the body 11, and coupling holes 14 are formed in each outer flange piece 13, respectively, penetrating back and forth. On the other hand, outer flange pieces 17 are extended on both left and right ends of the rear end of the cover 12, and on both left and right sides of the rear surface of each outer flange piece 17, a joint having a 7γ radius 15 at the tip thereof is provided. Leg pieces 16 are extended. Therefore, insert the connecting leg piece 16 into the connecting hole 14, and insert the 7 hooks 15 into the connecting hole 1.
4, the body 11 and cover 12 are joined together as shown in FIG.

The inside of the body 11 is partitioned into three left and right sections by a pair of partition pieces 51 running in the vertical direction. The central compartment is modular
This becomes a modular storage section 52 in which the block 2 is stored.

On the surface of the partition piece 51, which is the inner surface of the moji error storage section 52, a raised bottom lip 54 extending in the front and back direction is provided.
As shown in FIG. 1, when the modular block 2 is mounted inside the body 11, the rear surface of the mono error block 2 is raised above the bottom surface of the body 11. body 11
Each of the left and right compartments is partitioned by partition pieces 55 running left and right, forming a terminal accommodating portion 53 having a size capable of accommodating one terminal block 3 each. A partition tab 56 is formed on the surface of the partition piece 51, which is the inner surface of the terminal storage section 53, at a vertically central position of the terminal storage section 53 and extends in the front-rear direction.

The cover 12 has a plug insertion port 61 that opens at the center of the front surface.
have. A pair of locking pawls 62 are protruded from the tip edges of the left and right outer flange pieces 17 of the cover 12, and a locking recess is provided in the stepped portion 18 formed at the base of the outer flange piece 17. 63
is formed. The plug insertion opening 61 has a substantially rectangular shape, and has a notch 64 formed in a two-step staircase shape at the bottom. When the cover 12 is coupled to the body 11, a space with an appropriate thickness is formed between the front surface of the mono error block 2 mounted on the body 11 and the rear surface of the opening periphery of the plug insertion opening 61 of the cover 12.

The mononilar block 2 has a modifier main body 21 made of an insulating material such as a synthetic resin, and a plug insertion hole 22 is formed in the modifier main body 21, penetrating from the front and back. A large number of elastic linear contact pins 23 are protruded into the plug insertion hole 22, and a plug insertion port 61 opens the plug (not shown) in the front surface of the casing 1.
When inserted through the plug, each contact pin 23 comes into elastic contact with a corresponding contact on the plug, so that they are electrically connected to each other. Mojiev - Leads electrically connected to each contact pin 23 from the rear side of the main body 21! 24 is drawn out. In addition, retaining lips 25 are provided on the left and right S portions of the front surface of the mono-error main body 21 so as to protrude toward the front, and the amount of protrusion of the retaining lips 25 is between the front surface of the mono-error main body 21 and the rear surface of the cover 12. The thickness of the space is set to be approximately equal to the thickness of the space formed in the space.

The terminal block 3 consists of a U-shaped terminal frame 31 made of a conductive material and open to the rear, and a locking spring 32 made of a spring material and mounted inside 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, and a cut-out in the center of the other leg leaving a U-shaped opening. A piece 34 is formed. On the other hand, the locking spring 32 is formed by folding a sheet metal in half at the front i part to form a pair of left and right base pieces 35a and 35b, and each base piece 35
A pair of front and rear locking pieces 36m and 3 are formed by folding back the tips of the locking pieces 36m and 35b diagonally forward with respect to the base pieces 35a and 35b, respectively.
It has a shape of 6&. The locking spring 32 has
Each locking piece 3 corresponding to the center part of each base piece 35a, 35&
Slots 7) 37m and 37b are formed reaching the tips of 6m and 36b, and each locking piece 36a.

Both the upper and lower living portions of 36b can apply spring force independently. Further, when the locking spring 32 is attached to the terminal frame 31, the ends of the slits 37m+37b on the base pieces 35a and 35b side are locked to the cut and raised pieces 34,
The locking spring 32 is held by the terminal frame 31 and formed into a block.

Here, the locking pieces 36m and 36b of the locking spring 32 are connected to the terminal frame 3.
If the locking spring 32 is formed to such an extent that it comes into elastic contact with one of the leg pieces of the terminal frame 31, the locking spring 32 can be held to the terminal frame 31 more reliably. Also, terminal frame 3
1 leg piece and lock piece 36a.

Although no gap is formed between the tip of the lock piece 36b, there is no problem because the iM used for the telephone line is 0.4 to 0.65ti+ and is very thin.
Since the spring forces are applied independently, two telephone lines can be connected to one terminal block 3.

There are the following methods for manufacturing the terminal block 3.

That is, a sheet metal of a conductive material is pressed to form a 7-ply terminal frame, a sheet metal of a spring material is press-processed to form a 7-ply locking spring, and then both are pressed together. All you have to do is form it into a block in a mold and feed it to the assembly line while having a dog cut the 7-ply block. With this method, the terminal block 3 can be supplied to the assembly line without using parts figures. Alternatively, the terminal frame 31 and the locking spring 32 may be cut independently, assembled using a block processing machine, and then supplied to an assembly line using a parts figure. In this case, the terminal frame 31 and Since the locking spring 32 is made into a block,
Only one Vertzfieg is needed.

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, each slot between the terminal frame 31 and the locking spring 32 is removed 7) 3
3, 37a, and 37b, the partition pad 56 is inserted to position the terminal block 3, and
A pair of telephone wires 5 connected to a terminal block 3 are kept in contact with each other to avoid tangling. In this way, since the terminal frame 31 and the locking spring 32 are assembled into one terminal block 3 and installed in the body 11, the body 1
This simplifies the assembly work compared to the case where the lock spring and the terminal frame are sequentially installed in the terminal frame. Each lead wire 24 drawn out from the modular block 2 is connected to the curved surface of the center piece of the terminal frame 31 using solder or the like, and each contact pin 23 of the modular block 2 is connected to each corresponding terminal block 3. They are electrically connected. body 11
As shown in FIG. 3, on the rear surface of the terminal frame 31, there is a ?
A four-wire insertion port 57 is open, and a release piece 58 is integrally formed in the body 11 adjacent to the wire insertion port 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 come into contact with the lock piece 36b on the rear side. It is separated by a pair of slits 59 and is flexible immediately relative to the body 11. Since the release piece 58 is formed in a U-shape, even if a material with relatively small allowable stress is used,
This prevents the release piece 58 from breaking and saves space. Since a material with such a small allowable stress can be used, an increase in material cost can be prevented, and since this shape does not require the use of a slide core in the mold, an increase in mold cost can be prevented.

With the above configuration, when connecting the telephone line 5, as shown in FIG. 5(a), if the telephone M5 is inserted into the wire insertion opening 57, the locking piece 36a is released.

36b and the leg piece of the terminal frame 31. On the other hand, when disconnecting the telephone line 5, the fifth
As shown in Figure (b), push the release piece 58 forward and bend the rear lock piece 36b away from the leg of the terminal frame 31 at the tip of one leg of the release piece 58. If so, please call [
5 can be easily removed. Terminal block 3 like this
is used as a connection terminal, and a release piece 58 for releasing the following electric wire is integrally formed in the body 11.
There is no need to use an independent release button like in the past,
This reduces the number of parts. Here, the first
As shown in Figure 0(a), the release piece 58 is inserted into the wire insertion port 57.
Figure 10 (b).
), compared to the case where the release piece 58 is formed inside the wire insertion opening 57, telephone #15 is less likely to overlap the release piece 58, making it easier to operate the release piece 58. ing.

Furthermore, since the release piece 58 does not protrude rearward of the casing 1, as shown in FIG. Even if it is small, the release piece 58 will not be pressed by the telephone line 5 or the like, and the telephone R5 will not be accidentally removed.

If a jig insertion groove 58a is formed in the U-shaped center piece of the release piece 58, as shown in FIG. 7, the operability will be further improved. That is, the jig insertion groove 58a may be formed in a straight line running in the width direction of the release piece 58 as shown in FIG. In the former shape, the tip of a nail or a flathead screwdriver can be inserted into the jig insertion groove 58a and the release piece 58 can be pressed; in the latter shape, in addition to a nail or a flathead screwdriver, the release piece 58 can be pressed. You can use a Phillips screwdriver. By providing the jig insertion groove 58a in this way, the operation of suppressing the release piece 58 becomes easy.

The above-mentioned release piece 58 was formed in a U-shape, but if a sufficiently large space is available and a material with a large allowable stress can be used for the body 11, the release piece 58 can be formed as shown in FIG. It is also possible to form 58 in an L-shape.

Incidentally, a door 4 is attached to the plug insertion opening 61 to prevent dirt and the like from entering the casing 1 from the plug insertion opening 61 when no plug is inserted. As shown in FIGS. 1 and 2, the door 4 is composed of a pair of upper and lower door bodies 41 and 42, and the curved surface of the mono error block 2 and the rear surface of the opening periphery of the plug insertion opening 61 of the cover 12 are connected to each other. 9j in between! 6 door bodies 41 to be delivered 5!7c in between
．． 42 is mounted between a pair of right and left holding lips 25 protruding from the front surface of the mononylar block 2, and is guided by both holding lips 25 and can freely slide up and down.

The lower door body 42 is arranged so that its upper end overlaps the rear of the upper door body 41. The lower door body 42 has an operating piece 43 protruding from the lower end of the front surface at the center in the left-right direction.
3 is set to be approximately equal to the horizontal width of the lowermost stage of the notch 64 of the plug insertion port 61. The operating piece 43 is set to protrude slightly from the front surface of the cover 12. In this way, the upper door body 41 is connected to the plug insertion opening 61.
The upper half of the plug is closed, and the lower door body 42 has a plug insertion slot 61.
The lower half of the body is occluded. In addition, the plug insertion port 61
When the door 4 is closed, the upper door body 41 is locked with an appropriate locking means such as a locking lever so that it does not fall downward. ,
As shown in FIG. 2, after the front surface of the modular block 2 attached to the body 11 faces upward and both the upper and lower door bodies 41 and 42 are placed between the holding lips 25, the cover 12 is fitted onto the body 11. The parts can be assembled by stacking them one on top of the other, making it easy to automate the assembly.

When inserting the plug into the plug insertion slot 61 provided with the door 4 as described above, move the plug so as to touch the bottom surface of the operating piece 43 and push the operating piece 43 away! The pH is adjusted, and the plug is introduced into the plug insertion port 61 while pushing up the lower door body 42. 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. Insert the plug in reverse [161
When pulled out, both door bodies 41 and 42 fall downward under their own weight,
The plug insertion port 61 is automatically closed. That is, when inserting a plug, the operation of opening the door 4 and the introduction into the plug insertion port 61 are performed in a series of operations, and conversely, when the plug is removed, the door 4 is automatically closed.

As shown in FIG. 12, the telephone modular jack constructed as described above can be attached to a ready-made mounting frame 71 to which a wiring device module can be attached. The mounting frame 71 is made of synthetic wood and has a size that allows it to hold three wiring module modules vertically side by side. As shown in FIGS. 12 and 13, a pair of locking holes 73 are bored in the left vertical frame 72 of the mounting frame 71 at positions corresponding to the mounting positions of each wiring device module, and a pair of locking holes 73 are bored in the left vertical frame 72 of the mounting frame 71, and
A side frame 75 is provided spaced apart from the right vertical frame 74 at a position corresponding to the mounting position of each wiring miscellaneous module. A release piece 76 is protruded from the center of each side frame 75, and a holding hole 77 surrounded by the right vertical frame 74, side frame 75, and release piece 76 is formed on both sides of the release piece 76. . However, by inserting the locking claw pieces 62 protruding from the left and right sides of the casing 1 of the telephone modular jack into the locking hole 73 and the holding hole 77, the casing 1 is held in the mounting frame 71. To remove the casing 1 from the mounting frame 71, use a jig such as the tip of a screwdriver to press the release piece 76 so as to widen the distance between the right vertical frame 74 and the side frame 75. The engagement with the A horizontally long mounting hole 78 for mounting to the switch box 6 and a screw hole 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 metal one is also provided, and the metal mounting frame 71 fits into the locking hole 6 provided in the casing 1.
A locking claw that can be inserted into the opening is formed on the inner edge of the opening.
The casing 1 is held by plastically deforming a portion of the mounting frame 71 so that the locking claws are inserted into the locking holes 63.

(Example 2) In Example 1, the terminal storage section 53 was provided with only one section on the left and right, but in this embodiment, as shown in FIG. 14, the terminal storage section 53 is formed in three sections on the left and right. It is configured so that up to six terminals can be provided as required. The other configurations are the same as in the first embodiment.

(Embodiment 3) In this embodiment, as shown in FIG. 15 and #S16, the connection piece 38 is formed by cutting and raising the center piece of the terminal frame 31 forward. A press-fit slit 39 is formed which is open to the inside. Therefore, at the time of assembly, after the terminal block 3 is installed in the body 11, the modular block 2 is assembled to the body 11, and the lead ## protruding from the modular block 2 is assembled.
124 into the press-fit slit 39, the terminal frame 31
This allows the lead wire 24 to be connected to. That is, lead # by solder etc. This eliminates the need for 24 connections and facilitates automatic assembly. In addition, in this embodiment, retaining lips 25 are formed on all sides of the front surface of the modular block 2 to prevent the door 4 from falling off in any direction, up, down, left or right. The other configurations are the same as in the first embodiment.

[Effects of the Invention 1] As described above, the present invention includes a modular block in the casing to which a plug inserted through the plug insertion opening opened on one side of the casing is detachably connected, and a contact pin of the modular block is connected to the modular block. In a telephone mozo error rack having terminal parts that are electrically connected to each other, the terminal parts are made of a terminal frame made of a conductive material and a spring material and are brought close to the terminal frame (by applying a spring force in the direction of the terminal frame). and a locking spring that clamps the electric wire between the casing and the casing, and a release piece that presses the locking spring in a direction that weakens the spring force of the locking spring toward the terminal frame by applying an external force. Since the release piece corresponding to the release button of the connection terminal is provided integrally with the casing, it has the advantage of reducing the number of parts.

In addition, since it is a connecting terminal, the connection state does not depend on the operator unlike conventional terminal screw terminals, and it has the advantage of being able to connect telephone lines with constant connection reliability. be.

[Brief explanation of the drawing]

The PtSi diagram is a partially cutaway plan view showing one embodiment of the present invention,
Fig. 2 is an exploded perspective view of the same as the above, Fig. 3 is a sectional view of the main parts of the same, Fig. 4 is an exploded perspective view of the main parts of the above, Fig. 5 is an explanatory diagram of the operation of the terminal part of the above, and Fig. 6 is 7 is a sectional view of the main part showing another example of the same as the above, FIG. 7 is a sectional view of the main part showing a release piece of another shape as above, and FIGS. A rear view showing an example and an explanatory diagram for use, Fig. 9(a) (
b) is a rear view showing another example of the jig insertion groove in Fig. 7, and a usage explanatory diagram; 12 is a front view of the same as the above attached to the mounting frame, FIG. 13 is a perspective view showing the mounting frame used for the above, and 1.
4 is an exploded perspective view showing a second embodiment of the present invention, FIG. 15 is an exploded perspective view showing a third embodiment of the present invention, FIG. 16 is a partially cutaway plan view of the same, and FIG. FIG. 18 is a sectional view showing a conventional example, FIG. 19 is an exploded perspective view showing a conventional connection terminal, and FIG. 20 is a sectional view of the same. 1 is a casing, 2 is a mononilar block, 3 is a terminal block, 31 is a terminal frame, 32 is a locking spring, 58 is a release piece, and 61 is a plug insertion slot. Agent Patent Attorney Ishi 1) Ai 7 1 Figure 2 Japanese map 140; Hemp 5 (a) (b) Figure 6 Figure 12 Toma 13 Figure 14ryJ Figure 15 Figure 16 Figure 17 Old Figure 19, Part 2] Procedural amendment (voluntary) October 30, 1985

Claims (2)

[Claims] (1) A modular block is provided in the casing to which a plug inserted through a plug insertion port opened on one side of the casing is removably connected, and terminal portions are respectively electrically connected to contact pins of the modular block. In a telephone modular jack, the terminal part consists of a terminal frame made of a conductive material and a locking spring made of a spring material that applies a spring force in the direction of approaching the terminal frame to clamp the electric wire between the terminal frame and the terminal frame. The telephone modular jack is characterized in that a release piece is formed integrally with the casing to press the lock spring in a direction that weakens the spring force of the lock spring toward the terminal frame. (2) The telephone modular jack according to claim 1, wherein the release piece is formed in a substantially U-shape.