JPS6320210Y2 - - Google Patents

Description

[Detailed description of the invention] <Field of industrial application> The present invention relates to a connection device for data terminal equipment in which a line protection device is installed at the same location as a converter for separating the connection between a communication line and a data terminal equipment. .

<Prior Art> In order to perform data communication using a public communication network such as a general subscriber line or a public communication line, a converter is required to separate the communication line and the data terminal device.

This converter 53 is connected to the line 5 as shown in FIG.
converter storage case 5.
6 and fixed at an appropriate location.

On the other hand, in the above-mentioned data communication, a line protection device 57 is installed as shown in Fig. 1 in order to protect communication lines from interference due to deterioration of parts of private equipment, poor handling, unforeseen circumstances, etc., and to prevent danger to maintenance personnel. line 51 and data terminal equipment 54
It is required to be installed between the

This line protection device 57, as shown in FIG.
7a and the filter circuit 57b, and the matching transformer 5
7c, only signals having normal levels and frequencies are supplied to the circuit 51, and other noises are not supplied.

In this way, the rotator 53 and the line protection device 57 are
Although they are used together in data communication as described above, conventionally the converter storage case 56
The converter 53 and the like housed in the device are mounted on an indoor wall or table, while the line protection device 57 is housed inside the casing of the data terminal device 54 or screwed to the outer wall of the data terminal device 54. was.

<Problems to be solved by the present invention> However, in this way, the data terminal device 54
If the line protection device 57 is housed inside the data terminal device, the data terminal device 54 becomes larger, and if it is attached to the outer wall of the data terminal device, the data terminal device as a whole becomes larger.

In view of the above-mentioned circumstances, the present invention has been developed by integrally attaching the line protection device storage case that houses the line protection device to the converter storage case that houses the converter, so that the converter and the line protection device can be installed at the same location. The purpose of the present invention is to provide a connection device for a data terminal device.

<Means for Solving the Problems> For this purpose, the present invention provides a converter storage case that houses a converter that switches the line between the telephone and the data terminal device, and a converter storage case that stores the converter and the data terminal device. A connection device for a data terminal device that is integrally stacked with a line protection device storage case for storing a line protection device inserted between the device and the device, wherein the converter storage case is a box with each side open. It has a structure in which circuit components are housed between a top lid and a bottom lid, and both lids are screwed together, and each of the top lid and bottom lid has tapping holes for screwing on the inner wall surface facing the opening surface. The first protrusion can be inserted into a position on the inner wall surface that is line symmetrical to the first protrusion with respect to a center line of the inner wall surface. a second convex portion having the same number as the first convex portion and having a concave portion provided at the center of the concave portion and a screw insertion hole provided at the center of the concave portion; at least one third protrusion having a tapping hole for screwing from one side to the other; and a switch operation part inserted on the same side of the center line as the second protrusion. The circuit components of the switch are mounted on the inner wall surface of the one case component, and the other case component is attached to the one case component. to project the switch operating part outward from the switch operating part insertion hole of the other case component, and insert the tightening screw into the first protrusion through the screw insertion hole of the second protrusion. screws into the tapping holes of the other case component, and overlay the line protection device storage case on the outer surface of the other case component in a position opposite to the switch operation part insertion hole with respect to the center line, so that the line protection device is accommodated. It is characterized in that the bottom of the case is screwed into the tapping hole of the third protrusion of the other case component.

<Operation> Because of this structure, two case components having the same shape are used as a converter storage case, and the first protrusion of one case component and the second protrusion of the other case component Then, the line protection device storage case is screwed to the third protrusion of the other case component, and the two are assembled and installed.

<Embodiment of the present invention> An embodiment of the present invention will be described below based on the drawings.

3 to 6 show an embodiment of a data terminal device connection device according to the present invention.

As shown in FIG. 3, the bottom cover and top cover that constitute the converter storage case 10 are constructed by two identical case constituent members 11, 11 molded with the same mold.

That is, as shown in FIG. 4, the case component 11 has a dish-like shape with one side open, which is composed of a bottom plate 12 and a peripheral wall 13 provided around the bottom plate 12. Of the four corners surrounded by the long side peripheral walls 13a, 13b and the short side peripheral walls 13c, 13d, a corner 14a surrounded by the peripheral walls 13a, 13c and a corner surrounded by the peripheral walls 13a, 13d. Column-shaped supports 15a and 15b (first convex portions) are provided to protrude perpendicularly from the bottom plate 12 at the corner portions 14b. Post 15a, 1
5b has a tip protruding beyond the upper end 13e of the peripheral wall 13, and has a tapping hole 1 in the center for screwing the two case components 11, 11.
6a and 16b are bored.

On the other hand, a corner 14 surrounded by peripheral walls 13b and 13c
corner 14d surrounded by c and surrounding walls 13b and 13d
The bottom plate 12 is formed in a step shape protruding from the inner wall surface, and the tapping holes 16a, 16 of the step portions 17a, 17b are aligned with respect to the center line c of the bottom plate 12.
Tapping holes 16a, 1 are provided at positions symmetrical to b.
Fitting holes 18a and 18b are provided in which screws for screwing are inserted into the holes 18a and 18b. Furthermore, guides 19a and 19b (second convex portions) that protrude circumferentially are provided around the insertion holes 18a and 18b. The guides 19a, 19b guide the two case components 11, 11 to one case component 11.
The pillars 15a and 15b of the other case component 1
1 guides 19a, 19b recesses 20a, 20b
The guides 19a and 1 serve to position the guides 19a and 19a by overlapping each other so as to fit into the
The inner diameter of the support 9b is approximately equal to the outer diameter of the supports 15a and 15b.

Further, the stepped portions 17a, 17 of the outer wall of the bottom plate 12
On the contrary, the portion corresponding to b is a concave stepped portion 21a, 21
b, so that when the insertion holes 18a, 18b of one case component 11 are inserted and the screws are secured in the tapping holes 16a, 16b of the other, the heads of the screws do not protrude from the outer wall surface of the bottom plate 12. It's becoming like that.

Corner 22 between bottom plate 12 and peripheral walls 13a, 13b
A, 22b are provided with a plurality of ribs 23 on which the board 5 on which circuit components are mounted is placed. Furthermore, a mounting member 24 to which the board 5 is attached is provided on the inner wall of the bottom plate 12. The mounting member 24 consists of two cylindrical supports 2 that protrude diagonally opposite each other.
4a and 24a, and this support 24
Tapping holes 24b, 24b for screwing the board 5 are bored in the center of the holes 24a, 24a.

Semicircular notches 25a, 25b for taking out the electric wire cord 6 are provided approximately at the center of the upper end portion 13e of the peripheral walls 13c, 13d, and the notches 25a, 25b of the upper end portion 13e and the peripheral wall 13a are provided with semicircular recesses 26a and 26b with reduced wall thickness. Recess 26
Since the wall thickness of a and 26b is thin, another electric wire cord outlet can be easily created by removing the thin wall portions as necessary.

Furthermore, a plate piece 27 having a U-shaped cross section is provided below the notch 25a on the inner wall surface of the peripheral wall 13c so that the peripheral wall 13c and the plate piece 27 form a locking hole 28. The locking hole 28 is the stopper 7 of the electric wire cord 6.
This is for fixing the electric wire cord 6 by locking it.

On the side of the peripheral wall 13b from the center line c of the bottom plate 12,
Stays 29a and 29b for fixing electric wire cords are provided in addition to the locking hole 28, which is formed by two plate pieces erected adjacent to the peripheral walls 13c and 13d.

Furthermore, on the peripheral wall 13a side of the center line c of the bottom plate 12, a cylindrical support 31 is provided which has mounting holes 30a and 30b for mounting the mounting plate 41 of the line protection device 40 in proximity to the peripheral walls 13c and 13d.
a, 31b (third protrusion) are provided in a protruding manner. The pitch of the mounting holes 30a and 30b is the line protection device 4.
The pitch of the screw insertion holes 41a and 41b of the mounting plate 41 of No. 0 is the same, and the line protection device is provided through the bottom plate 12, so that the line protection device can be attached to the outer wall of the bottom plate 12 by screwing. ing.

In addition, screw insertion holes 32a and 3 are provided at positions close to the stays 29a and 29b of the bottom plate 12 for attaching the case component 11 to an appropriate location such as a wall.
2b is drilled. Furthermore, the peripheral wall 1 of the bottom plate 12
3b is provided with a rectangular hole 33 so that when the two case components 11 are stacked on top of each other, the head of the switch operation part 3a of the slide switch 3 attached to the board 5 is placed outside the case. It starts to protrude towards the side.

One case component 1 configured as described above
1, as shown in FIGS. 3 and 5, a board 5 on which circuit components such as a terminal board 2 having a plurality of terminals 1, a slide switch 3, and solder terminals 4 are mounted is placed on a rib 23, and a mounting member 24 is mounted. Screw it on. After the wire cord 6 is wired to the terminal 1 through the solder terminal 4, a piece of the stopper 7 is inserted into the locking hole 28 to fix the wire cord 6. And insertion holes 32a, 3
The case component 11 is screwed to a wall etc. through the screws 2b, and then attached to another case component 11 from above.
The pillars 15a and 15b are mutually connected to the guide 19a,
19b so as to fit into the recesses 20a and 20b. In this case, the inner diameters of the guides 19a, 19b are approximately equal to the outer diameters of the supports 15a, 15b, so they fit tightly together and the case does not wobble. Moreover, the tapping holes 16a, 1
6b and the screw insertion holes 18a, 18b are provided at positions symmetrical about the center line c of the bottom plate 12, so their positions coincide. Then, by inserting the insertion holes 18a and 18b of the case component 11 on which the board 5 is mounted from the outside and screwing them into the tapping holes 16a and 16b of the case component 11 on which the board 5 is mounted. case component 11,
11 is fixed. After assembling the converter storage case 10 in this way, as shown in FIGS.
on the right side of a), remove the line protection device storage case 4.
When the bottom plate 41 of 0 is aligned with the right side and left step portions of the case component 11, the insertion holes 4 of the bottom plate 41 are aligned.
1a and 41b are the pillars (third
mounting holes 30a, 30 of convex parts) 31a, 31b
Match b and tighten the screws from above. Note that if the line protection device storage case 40 has a structure that allows the bottom plate 41 and other parts to fit together, the bottom plate 41 should be inserted first.
It can be fitted after screwing.

<Effects of the present invention> As explained above, the present invention provides two identical case constituent members 1 each having a first, second, and third convex portion.
1 and 11, the converter storage case 10 is constructed by using the first and second protrusions, and the line is constructed by using the third protrusion of the upper case 10. Since the protective device storage case 40 can be assembled integrally, the data terminal device can be downsized.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a data communication system using a converter, and FIG. 2 is a block diagram showing the configuration of the line protection device shown in FIG. Fig. 3 is a perspective view showing the state before assembly of one embodiment of the present invention;
5 is a plan view of the case component on which circuit components are mounted, and FIG. 6 is a perspective view of the case component after assembly. 3a...Switch operation unit, 5... Board, 10...
...Converter storage case, 11...Case constituent members,
12... Bottom plate, 13... Peripheral wall, 15a, 15b...
...Strut (first protrusion), 19a, 19b...Guide (second protrusion), 31a, 31b...Strut (third protrusion), 33...Hole, 40...Line protection device storage Case, 41...bottom plate.

Claims (1)

[Claims for Utility Model Registration] A converter storage case that houses a converter that switches the line between the telephone and the data terminal device, and a line protector inserted between the converter and the data terminal device. A connection device for a data terminal device which is integrally stacked with a line protection device storage case for storing the device, wherein the converter storage case is located between a box-shaped top lid and a bottom lid each having an open side. It has a structure in which circuit components are housed and both lids are screwed together, and each of the top lid and the bottom lid has at least one first convex portion having a tapping hole for screwing on an inner wall surface facing the opening surface. and a recess that allows the first protrusion to be inserted at a position on the inner wall surface that is line symmetrical to the first protrusion with respect to the center line of the inner wall surface, and a recess provided at the center of the recess. the same number of second protrusions as the first protrusions, each having a screw insertion hole; and a screw stopper for being screwed from the outside on the same side of the center line as the first protrusions. integrally molded with the same shape, including at least one third protrusion having a tapping hole for the purpose of tapping, and a switch operation part insertion hole provided on the same side of the center line as the second protrusion; The circuit components of the switching device are mounted on the inner wall surface of the one case constituent member, and the other case constituent member is placed over the one case constituent member. The switch operation part is projected outward from the switch operation part insertion hole, and a tightening screw is screwed into the tapping hole of the first protrusion through the screw insertion hole of the second protrusion, and the The line protection device storage case is superimposed on the outer surface of the other case component in a position opposite to the switch operation part insertion hole with respect to the center line, and the bottom of the line protection device storage case is inserted into the other case component. A connecting device for a data terminal device, characterized in that the connecting device is screwed into a tapping hole of the third convex portion.