JP2003070028A - Telephone exchange - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a telephone exchange which facilitates removal of door disposed in front of the exchange, thereby facilitating conducting of installation work or wiring work. SOLUTION: The telephone exchange, having a body 2 and a door 10 for covering the front of the body 2 comprises a top extension 10a which extends approximately vertical to the front of the door 10 from the top end of the door 10, a door hooking stay 4 projecting from the top end of the front of the body 2 to the front so that the top extension 10a is settled over and hooked on the hook, protrusions 11 projecting to the downside of the top extension 10a, fitting recesses 5 formed into the top face of the door hook 4 to fit the protrusions 11 into the recesses, and narrow squeezing parts 5a each being formed at one end of the recess 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone exchange for enabling a plurality of terminal devices to make an internal call or an external call, and more particularly to a telephone exchange in which a door can be detachably attached to the front side.

[0002]

2. Description of the Related Art In recent years, a plurality of telephones installed in a specific business office or a building such as a building are connected by a cable to make an external call by connecting to an extension call or a public line for mutual call. Telephone exchanges are widely used.
A telephone exchange is an extension telephone call in which desired terminal devices are connected to each other among terminal devices such as a plurality of telephones connected via a cable to perform communication, or a desired terminal device is connected to a public line. This is a device for making external calls and the like. As such a telephone exchange, a plurality of terminal cards (units) each having a connector for connecting a cable for connecting to a terminal device or a public line are arranged so that the connector is arranged on the front side of the casing. Widely used free-slot telephone exchanges that are inserted into multiple shelves formed inside the casing and detachably attached to a backboard disposed on the back side inside the casing for replacement or expansion. Has been. Even if the number of connected terminal devices increases, such a free-slot type telephone exchange can add terminal cards, so it is possible to deal with it without introducing another telephone exchange. It has the advantage that In addition, the casing, which is a free slot type exterior, is generally formed in a substantially rectangular parallelepiped shape, and terminals such as connection connectors for connecting to each terminal device such as a telephone are provided on the front side of each terminal card. Therefore, the door is arranged on the front side of the casing so as to be openable and closable so that the wiring can be connected, the maintenance can be performed, and the convenience and appearance can be improved.

[0003]

Some conventional telephone exchanges have a flat plate screwed on the front side, or have an openable door arranged on the front side. However, when the flat plate is screwed, it is necessary to screw or remove the flat plate at a plurality of places, which causes a problem that the work becomes complicated. On the other hand, in the case of an openable door, the work of attaching and removing screws is not complicated, but you have to work with the door attached, and the door becomes an obstacle when installing the telephone exchange. There was a problem that the work became complicated. In addition, since the door cannot be removed, it is difficult to move the wiring connected to the terminals such as the connector for connection backward from the hinge side on the side of the door, which is not convenient.

The present invention solves the above-mentioned conventional problems, and provides a telephone exchange in which the door portion arranged on the front side of the telephone exchange can be easily removed to facilitate installation work and wiring work. The purpose is to

[0005]

In order to solve the above problems, a telephone exchange of the present invention is a telephone exchange having a main body and a door portion which is provided on the front side of the main body. An upper surface side extending portion that is formed so as to extend substantially vertically from the upper end portion of the door portion to the front surface side of the door portion, and the upper surface side that is disposed at the upper end portion of the front surface of the main body so as to project to the front surface side. The door hooking portion is covered with the extension portion and is hooked, the protrusion portion formed to project to the lower surface side of the upper surface side extension portion, and the protrusion portion formed on the upper surface of the door hooking portion. It has the structure provided with the fitting recessed part which fits, and the narrow fitting part formed in the one end part of the said fitting recessed part with narrow width.

With this configuration, it is possible to provide a telephone exchange in which the door portion disposed on the front side of the telephone exchange can be easily removed to facilitate the installation work and wiring work.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION A telephone switchboard according to claim 1 of the present invention is a telephone switchboard having a main body and a door portion which is provided on the front side of the main body. An upper surface-side extending portion that is formed so as to extend substantially vertically from the upper end portion to the front surface side of the door portion, and an upper surface-side extending portion that is disposed at the upper end portion of the front surface of the main body so as to project toward the front surface side. A door latching portion that is covered and latched, a protrusion that is formed to project to the lower surface side of the upper surface side extension portion, and the protrusion that is formed on the upper surface of the door latching portion fits together. It has the structure provided with the fitting recessed part and the narrow fitting part formed in the one end part of the said fitting recessed part with narrow width. With this configuration, the following effects are obtained. (1) The protrusion is loosely fitted in the fitting recess while the door is tilted, and the door is rotated in this state to cover the front side of the main body, so that the protrusion causes the front-back direction of the door to move. The door part can be attached to the main body by restricting the movement to the left and right and downward.
Further, by sliding in the lateral direction to fit the protrusion in the fitting portion of the fitting recess, the door can be fixed to the main body, and therefore the door can be easily attached to and removed from the main body. .

Here, the door portion may be formed in a lid shape by providing not only the upper surface side extended portion but also the side surface side and the lower surface side extended portion.

The door hooking portion may be formed continuously on the upper surface of the main body.

The narrow-fitting portion is formed so narrow that one end of the fitting recess is tightly fitted with the protrusion. Further, a narrow fitting portion may be provided on the side surface portion on one end side of the fitting recess so that the width of the fitting recess is narrowed.

The invention according to claim 2 of the present invention is the telephone exchange according to claim 1, wherein the fitting recess is formed to be elongated in a lateral direction of the main body, and the protrusion is provided. It has a structure that is slidable in the fitting recess.

With this configuration, in addition to the function of claim 1,
It has the following actions. (1) Since the protrusion is formed to be long in the lateral direction of the main body, a large hooking area with respect to the front side can be obtained, and the protrusion can slide in the fitting recess. Since it is formed as described above, it is possible to easily cover the front side of the main body by loosely fitting the protrusion in the fitting recess while tilting the door and rotating the door in that state.

The invention according to claim 3 of the present invention is the telephone exchange according to claim 1 or 2, wherein a hook formed on the lower surface side of the upper surface side extension portion so as to project toward the main body. It has the composition provided with the stop part and the insertion hole part which is formed in the upper surface of the above-mentioned door stop part, and which is opened to the front side of the above-mentioned body, and in which the above-mentioned stop part is inserted.

With this configuration, in addition to the action of claim 1 or 2, the following action is obtained. (1) When the protrusion is loosely fitted in the fitting recess, and the door is rotated in that state to cover the front side of the main body, the latch is inserted into the insertion hole to secure the latch. Thus, the upward movement of the door can be restricted and the door can be attached to the main body, and the fixing of the door to the main body can be further strengthened.

Here, in order to open the insertion hole formed on the upper surface of the door hooking portion to the front surface side of the main body, an insertion groove portion may be formed from the front surface side to the rear surface side of the main body. A plurality of protrusions and hooks may be formed on the upper surface of the door hook, and it is preferable that at least two protrusions and hooks are formed on both end sides of the door hook. Thereby, the door portion can be securely attached to the main body.

The invention according to a fourth aspect of the present invention is the telephone exchange apparatus according to the third aspect, wherein the insertion portion is elongated in a lateral direction of the main body, and the hooking portion is provided. It has a configuration that is slidable inside the insertion hole.

With this configuration, in addition to the function of claim 3,
It has the following actions. (1) It is possible to make it slidable with the hook portion inserted in the insertion groove portion, and when sliding the door portion with respect to the main body,
Since it is possible to maintain the engaged state of the protrusion and the fitting recess, the door can be easily attached and detached. (2) When the protrusion and the latch are slidable while being fitted or inserted in the fitting recess and the insertion groove and the door is slidable with respect to the main body, the protrusion and the latch are respectively separated. The door part can be securely fixed to the main body because the door part can be slid with respect to the main body by fitting or inserting into the fitting concave part and the insertion groove part, and the protrusion part can be narrowly fitted to the narrow fitting part of the fitting concave part. be able to.

The invention according to claim 5 of the present invention is the telephone exchange according to any one of claims 1 to 4, wherein the telephone switch is formed on a side surface of the main body on a rear surface side of the door portion. A rear surface side projection fitting portion, and a rear surface side projection fitting portion formed on the front surface side of the main body and opened toward the side surface of the main body, and into which the rear surface side projection portion is fitted. There is.

With this configuration, in addition to the action of any one of claims 1 to 4, the following action is provided. (1) Since the upper side of the door can be fixed to the main body by the protrusion and the hook, and the lower side of the door can be fixed to the main body by the back side protrusion, the door can be fixed to the main body. It can be further strengthened. (2) When the protrusion and the latch are slidable while being fitted or inserted in the fitting recess and the insertion groove and the door is slidable with respect to the main body, the protrusion and the latch are respectively separated. By fitting or inserting into the fitting recess or insertion groove and sliding the door part with respect to the main body, the back side protrusion can be fitted and fixed to the back side protrusion fitting part. The door can be easily attached and detached without the need for tools or the like.

The invention according to a sixth aspect of the present invention is the telephone exchange apparatus according to any one of the first to fifth aspects, wherein a fitting is provided at a lower portion of the door portion so as to project toward the main body side. It has the structure provided with the convex part and the fitting groove part formed in the lower part of the said main body which the said fitting convex part fits.

With this configuration, in addition to the operation of any one of claims 1 to 5, the following operation is provided. (1) When the protrusion and the latch are slidable while being fitted or inserted into the fitting recess and the insertion groove, respectively, and the door is slidable with respect to the main body, the protrusion and the latch are respectively separated. By fitting or inserting into the fitting concave portion or the insertion groove portion and sliding the door portion with respect to the main body, the fitting convex portion can be fitted into the fitting groove portion and the lower side of the door portion can be fixed. Can be securely fixed to.

The invention according to claim 7 of the present invention is the telephone exchange according to any one of claims 1 to 6, wherein the door side guide portion is provided on the back side of the door portion. And a main body side guide portion disposed on the main body, the main body side guide portion having an inclined portion formed to be inclined from the front surface side to the side surface side of the main body and contacting the door side guide portion when the door portion is mounted. It has a different configuration.

With this configuration, in addition to the operation of any one of claims 1 to 6, the following operation is provided. (1) Attaching the door part to the main body When the door part is attached, the door side guide part contacts the inclined part of the main body side guide part and is guided. Therefore, the door part slides to the right side while approaching the main body. Has an effect that it is easy to bring the door to the state before sliding and the door part can be easily attached.

The invention according to claim 8 of the present invention is the telephone exchange apparatus according to claim 7, wherein the hook portion is inserted into the insertion groove portion, and the door portion is brought into contact with the front side of the main body. When contacted, the door-side guide portion and the main body-side guide portion are arranged so as not to overlap in the horizontal direction.

With this configuration, in addition to the operation of any one of claims 1 to 5, the following operation is provided. (1) When the hook portion of the door portion is inserted into the insertion groove portion and the door portion is brought close to the main body, the door side guide portion abuts the inclined portion of the main body side guide portion, and the door portion abuts the main body. In this case, for example, the door side guide part should be placed below the main body side guide part so that the door side guide part and the main body side guide part do not overlap in the horizontal direction, and the door part should slide on the front side of the main body. Since it does not interfere with, the door can be easily slid and attached to the main body.

An embodiment of the present invention will be described below.

(First Embodiment) FIG. 1 is a perspective view showing a telephone exchange according to a first embodiment of the present invention.

In FIG. 1, 1 is a telephone exchange according to the first embodiment, 2 is a main body of the telephone exchange 1 having a substrate and wiring therein, 3 is a casing of the main body 2, and 4 is a front end portion of an upper surface of the casing 3. Door locking parts formed to project 5
Is a fitting recess formed on the upper surface of the door hooking portion 4, 6 is an insertion groove formed on the upper surface of the door hooking portion 4 from the front side to the back side of the main body 2. , 6a is an insertion hole formed on the back side of the body 2 of the insertion groove 6, 7 is a first back side projection fitting part formed on the lower portion of the front side of the body 2, and 7a is the front side of the body 2. A second rear surface side projection fitting portion having a hole formed in the lower portion of the main body 2 from the side surface side toward the inner side; 8 is a fitting groove portion formed in the lower portion of the front surface side of the main body 2; A door portion 10a mounted on the front surface side of the main body 2 to protect the inside of the main body 2 is provided with an upper surface side extension portion 10b extending from the upper end portion of the door portion 10 to the upper surface side of the main body 2.
Reference numeral 11 denotes a lower surface side extending portion formed by extending from the lower end portion of the door portion 10 to the lower surface side of the main body 2, and 11 is formed on the lower surface side of the upper surface side extending portion and is provided in the fitting recess 5 when the door portion 10 is mounted. The fitting projections 12, 12 are formed on the lower surface side of the upper surface side extending portion 10a so as to project toward the main body 2, and when the door 10 is mounted, the insertion hole portion 6a.
A latching part 13 inserted into the upper surface of the lower surface side extension part 10b, and a back side projection part 13a which is fitted to the back side projection fitting part 7 when the door part 10 is mounted. A rear surface side protruding portion that projects toward the inside of the side portion and that fits into the rear surface side protrusion fitting portion 7 when the door portion 10 is mounted, and 14 is the lower surface side extension portion 1.
0b projecting toward the main body 2 and fitted into the fitting groove 8 when the door 10 is mounted.

The operation of the telephone exchange according to the first embodiment of the present invention configured as described above will be described with reference to the drawings.

In the first embodiment, only the operation of attaching the door portion 10 to the main body 2 will be described.
Since the operation of removing the door portion 10 from the can be performed in the reverse order of the attaching operation, the description thereof will be omitted.

FIG. 2 is a partially cutaway top view showing the door portion of the telephone exchange before sliding according to the first embodiment of the present invention, and FIG. 3 is a sectional view taken along line AA of FIG. FIG. 4 is a sectional view taken along the line BB of FIG. 2 as seen from the direction of the arrows, and FIG. 5 is a partially cutaway top view showing the state after the sliding of the door of the telephone exchange device according to the first embodiment of the present invention. Is.

In the figure, 1 is a telephone exchange, 2 is a main body, 3 is a casing, 4 is a door hook, 5 is a fitting recess, 6 is an insertion groove, 6a is an insertion hole, 10 is a door, and 10a is a The upper surface side extending portion, 11 is a protrusion, and 12 is a hooking portion, which are shown in FIG.
Since it is the same as that described in 1), the same reference numerals are given and the description is omitted. Reference numeral 5a denotes a narrow fitting portion formed at one end of the fitting recess 5 to have a narrow width.

When the door portion 10 is attached to the front surface side of the main body 2, first, the door portion 10 is tilted in a tilting direction so that the lower side of the door portion 10 and the lower front surface side of the main body 2 are opened. The protrusion 11 is inserted into the fitting recess 5. At this time,
As shown in FIG. 4A, the protrusion 11 is inserted into the fitting recess 5, but as shown in FIG. 4A, the hook 12 is inserted into the insertion groove 6a in an inclined state. . Next, the lower side of the door 10 is brought closer to the front side of the main body 2 with the protrusion 11 inserted in the fitting recess 5. At this time, as shown in FIG. 3B, the protrusion 11 is inserted into the fitting recess 5, and
As shown in (b), the hook portion 12 is inserted into the insertion groove portion 6a. In this state, as shown in FIGS. 1 and 2, the protrusion 11 restricts the front side or rearward movement of the upper portion of the door portion 10 and the latching portion 12 causes the upper portion of the door portion 10 to move upward. However, the lower side of the door 10 is not fixed. Further, the protrusion 11 limits the movement of the door 10 in the left-right direction, that is, the direction C or the opposite direction to a predetermined interval. However, as shown in FIGS. 3 and 4, it is possible to rotate in the predetermined rotation direction around the protrusion 11 or the hook 12 as an axis.

From this state, by sliding the door portion 10 in the direction C, the rear surface side protruding portions 13 and 13a are fitted to the rear surface side protruding fitting portions 7 and 7a, and the fitting convex portion 14 is fitted into the fitting groove portion 8. The lower part side of the door part 10 can be fixed by being fitted in.

Further, as shown in FIG. 5, the fitting concave portion 5 is C
5 has a narrow fitting portion 5a formed at one end on the side of the direction of FIG. 5 that is narrow enough to fit the projection 11 tightly, and by sliding the door portion 10 in the direction C, as shown in FIG. like,
The protrusion 11 can be tightly attached to the narrow attachment portion 5 a of the fitting recess 5. A narrow fitting portion may be provided on the side surface portion of the fitting concave portion 5 on the one end side so that the width of the fitting concave portion is narrowed.

Since the telephone exchange according to the first embodiment of the present invention is configured as described above, the protrusion 11 restricts the movement of the door portion 10 in the front, rear and C directions, and at the same time, the narrow attachment portion. 5a restricts rotation in the direction of rotation around the protrusion 11 or the latch 12 and further restricts the upward movement of the door 10 by the latch 12 to prevent the door 10 from moving.
Can be attached to the main body 2, and the door 10 can be easily attached to and removed from the main body 2.
1, the latching portion 12 is fitted or inserted into the fitting concave portion 5 and the insertion groove portion 6, respectively, and the door portion 10 is slid with respect to the main body 2, and the back surface side protrusions 13 and 13a and the fitting convex portion 14 are used to make the door portion 10.
Since the lower side of the door 10 can be fixed to the main body 2 to further strengthen the fixing of the door portion 10, the door portion 10 can be reliably fixed to the main body 2.

Here, the door portion may be formed not only in the upper surface side extended portion but also in the side surface side and the lower surface side, and the door portion may be formed in a lid shape. Further, the door retaining portion may be formed continuously on the upper surface of the main body. An insertion groove may be formed from the front side to the back side of the main body in order to open the insertion hole formed on the upper surface of the door hooking portion to the front side of the main body.

A plurality of protrusions and hooks may be formed on the upper surface of the door hook, and it is preferable that at least two protrusions and hooks are formed on both ends of the door hook. Thereby, the door portion can be securely attached to the main body.

(Second Embodiment) FIG. 6 is a perspective view showing a telephone exchange according to a second embodiment of the present invention.

In FIG. 6, reference numeral 2 is a main body, 3 is a casing, 4 is a door locking portion, 5 is a fitting recessed portion, 6 is an insertion groove portion, and 6a.
Is an insertion hole portion, 7 is a first back side projection fitting portion, and 7a is a second
Of the back side projection fitting portion, 8 is a fitting groove portion formed in the lower portion of the front surface side of the main body 2, 10 is a door portion, 10a is an upper surface side extending portion,
11 is a protrusion, 12 is a hook, 13 is a backside protrusion, 1
Reference numeral 3a denotes a back surface side protruding portion, and 14 denotes a fitting convex portion. Since these are similar to those described in FIG. 1, the same reference numerals are given and description thereof is omitted. Reference numeral 1a is a telephone exchange according to the second embodiment, 15 is a door side guide portion vertically projecting from the back side of the door portion 10, and 16 is a horizontal connection from one end of the door hooking portion 4 along the main body 2. Is installed on the front right
It is a main body side guide portion having.

The telephone exchange of the second embodiment has the same structure as the telephone exchange of the first embodiment,
The difference is that the door-side guide portion 15 and the main body-side guide portion 16 having an inclined portion 16a are provided.

The operation of the telephone exchange according to the second embodiment having the above configuration will be described below with reference to the drawings.

FIG. 7 is a top view for explaining the door mounting structure of the telephone exchange according to the second embodiment of the present invention from the top side, and FIG. 8 shows the door mounting structure for the telephone exchange according to the second embodiment of the present invention. It is sectional explanatory drawing demonstrated from a cross section.

In the figure, 3 is a casing, 4 is a door retaining portion, and 5
Is a fitting concave portion, 6 is an insertion groove portion, 6a is an insertion hole portion, 10 is a door portion, 10a is an upper surface side extension portion, 11 is a protrusion portion, 12 is a hook portion, 15 is a door side guide portion, and 16 is a main body. Side guide part, 16
Reference symbol a denotes an inclined portion, and these are the same as those described in FIG. 6, so the same reference numerals are given and description thereof is omitted.
In FIG. 7A, the door portion 10 is tilted when the door is attached so that the door-side guide portion 15 has the inclined portion 1 of the main body-side guide portion 16.
6a shows the state of contact with 6a, and FIG.
7 (c) shows a state in which 0 is tilted and the door side guide portion 15 slides on the inclined portion 16a of the main body side guide portion 16, and FIG.
The door side guide portion 15 is the inclined portion 16 of the main body side guide portion 16.
After contacting a, sliding and moving, the door side guide portion 15
Shows a state of being positioned below the main body side guide portion 16. 8A is a sectional view taken along the line DD of FIG. 7A, and FIG. 8B is a sectional view taken along line EE of FIG. 7B.
8C is a cross-sectional view of the main part of the line taken along the arrow in FIG. 8, and FIG. 8C is a cross-sectional view of the main part taken along the line F-F of FIG. 7C.

First, while inserting the hook portion 12 of the door portion 10 into the insertion hole portion 6a of the main body 2, the projection portion 11 of the door portion 10 is engaged with the fitting concave portion 5 and the door portion 10 is tilted. Body 2
Attach to. At this time, as shown in FIGS. 7A and 8A, first, when the door portion 10 is tilted toward the main body 2, the door side guide portion 15 causes the main body side guide portion 16 to tilt.
6a is contacted. Next, as shown in FIGS. 7B and 8B, the door-side guide portion 15 moves while being guided along the inclined portion 16a, so that the door portion 10 tilts and the lower side approaches the main body 2. While sliding to the right. In the state where the door portion 10 is mounted on the front surface of the main body 2, FIG.
As shown in (c), the door-side guide portion 15 is separated from the inclined portion 16a of the main body-side guide portion 16, and the door-side guide portion 15 enters the lower side of the main-body-side guide portion 16 so that the door is closed. The protruding portion 11 of the portion 10 is inserted into and fitted into the fitting recess 5 of the main body. In this way, when the door side guide portion 15 is located on the right side of the inclined portion 16a of the main body side guide portion 16, that is, the door portion 10 is attached to the main body 2 with the front side of the main body 2 being displaced to the right side. Only in this case, the projection 11 is inserted into and engaged with the fitting recess 5 so that the door 10 can be attached to the main body 2. Therefore, it is easy to bring the door 10 to the state before sliding. In particular, since the operating range of the latching portion 12 of the door portion 10 is limited by the insertion groove portion 6, the mounting becomes easier. When the door 10 is at the position before sliding, the door-side guide 15 is placed on the body-side guide 16.
Since the door 10 is located below the door, the door 10 can slide to the left.

As described above, the telephone exchange according to the second embodiment differs from the telephone exchange according to the first embodiment in that the door side guide portion 15 is provided.
And the main body side guide portion 16 having the inclined portion 16a, in addition to the operation of the first embodiment, the hook portion 12 of the door portion 10 is engaged with the insertion groove portion 6 and the door side guide portion is provided. 15
Only when the main body side guide portion 16 is located on the right side of the inclined portion 16a, the projection portion 11 engages with the fitting concave portion and the door portion 10
Since it can be attached to the main body 2, it is easy to bring the door portion 10 to the state before sliding, and the door portion 1
When 0 is in the position before sliding, the door side guide portion 15
Is located below the main body side guide portion 16, so that the door portion 10 can be slid in the direction C.

[0047]

As described above, according to the telephone exchange of the present invention, the following advantageous effects can be obtained.

[0048] According to the invention described in claim 1 of the present invention,
It has the following effects. (1) The protrusion is loosely fitted in the fitting recess while the door is tilted, and the door is rotated in this state to cover the front side of the main body, so that the protrusion causes the front-back direction of the door to move. The door part can be attached to the main body by restricting the movement to the left and right and downward.
Further, by sliding in the lateral direction to fit the protrusion in the fitting portion of the fitting recess, the door can be fixed to the main body, and therefore the door can be easily attached to and removed from the main body. It is possible to provide a telephone exchange with excellent convenience.

According to the second aspect of the present invention,
In addition to the effect of claim 1, the following effect is provided. (1) Since the protrusion is formed to be long in the lateral direction of the main body, a large hooking area with respect to the front side can be obtained, and the protrusion can slide in the fitting recess. Since it is formed like this, the telephone exchange can be easily fitted with the protrusion in the fitting recess in a state where the door is tilted, and in that state the door can be rotated to cover the front side of the main body. Can be provided.

According to the invention of claim 3 of the present invention,
In addition to the effects of claim 1 or 2, the following effects are provided. (1) When the protrusion is loosely fitted in the fitting recess, and the door is rotated in that state to cover the front side of the main body, the latch is inserted into the insertion hole to secure the latch. With this, it is possible to provide a telephone switchboard with excellent stability that can restrict the upward movement of the door part and attach the door part to the main body, and further strengthen the fixing of the door part to the main body. .

According to the invention of claim 4 of the present invention,
In addition to the effect of claim 3, the following effect is provided. (1) It is possible to make it slidable with the hook portion inserted in the insertion groove portion, and when sliding the door portion with respect to the main body,
Since it is possible to maintain the engaged state of the protrusion and the fitting recess, it is possible to provide a telephone exchange with excellent convenience in which the door can be easily attached and detached. (2) When the protrusion and the latch are slidable while being fitted or inserted in the fitting recess and the insertion groove and the door is slidable with respect to the main body, the protrusion and the latch are respectively separated. The door part can be securely fixed to the main body because the door part can be slid with respect to the main body by fitting or inserting into the fitting concave part and the insertion groove part, and the protrusion part can be narrowly fitted to the narrow fitting part of the fitting concave part. It is possible to provide a telephone exchange capable of doing so.

According to the invention of claim 5 of the present invention,
In addition to the effect of any one of claims 1 to 4, the following effect is obtained. (1) Since the upper side of the door can be fixed to the main body by the protrusion and the hook, and the lower side of the door can be fixed to the main body by the back side protrusion, the door can be fixed to the main body. It is possible to provide a telephone exchange that can be further strengthened. (2) When the protrusion and the latch are slidable while being fitted or inserted in the fitting recess and the insertion groove and the door is slidable with respect to the main body, the protrusion and the latch are respectively separated. By fitting or inserting into the fitting recess or insertion groove and sliding the door part with respect to the main body, the back side protrusion can be fitted and fixed to the back side protrusion fitting part. It is possible to provide a telephone exchange device with excellent convenience that can easily attach and detach the door portion without requiring a tool or the like for attachment and detachment.

According to the invention of claim 6 of the present invention,
In addition to the effect of any one of claims 1 to 5, the following effect is obtained. (1) When the protrusion and the latch are slidable while being fitted or inserted into the fitting recess and the insertion groove, respectively, and the door is slidable with respect to the main body, the protrusion and the latch are respectively separated. By fitting or inserting into the fitting concave portion or the insertion groove portion and sliding the door portion with respect to the main body, the fitting convex portion can be fitted into the fitting groove portion and the lower side of the door portion can be fixed. It is possible to provide a telephone exchange that can be securely fixed to the.

According to the invention of claim 7 of the present invention,
In addition to the effect of any one of claims 1 to 6, the following effect is provided. (1) Attaching the door part to the main body When the door part is attached, the door side guide part contacts the inclined part of the main body side guide part and is guided. Therefore, the door part slides to the right side while approaching the main body. It is possible to provide a telephone switchboard with excellent convenience in that it is easy to take the door to the state before sliding and the door part is easily attached.

According to the invention of claim 8 of the present invention,
In addition to the effect of claim 7, the following effect is provided. (1) When the hook portion of the door portion is inserted into the insertion groove portion and the door portion is brought close to the main body, the door side guide portion abuts the inclined portion of the main body side guide portion, and the door portion abuts the main body. In this case, for example, the door side guide part should be placed below the main body side guide part so that the door side guide part and the main body side guide part do not overlap in the horizontal direction, and the door part should slide on the front side of the main body. Therefore, it is possible to provide the telephone exchange in which the door portion can be easily slid and attached to the main body.

[Brief description of drawings]

FIG. 1 is a perspective view showing a telephone exchange according to a first embodiment of the present invention.

FIG. 2 is a partially cutaway top view showing the door part of the telephone exchange before sliding according to the first embodiment of the present invention.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a cross-sectional view taken along the line BB of FIG.

FIG. 5 is a partially cutaway top view showing the door part of the telephone exchange after sliding according to the first embodiment of the present invention.

FIG. 6 is a perspective view showing a telephone exchange according to Embodiment 2 of the present invention.

FIG. 7 is an upper surface explanatory view for explaining the door mounting structure of the telephone exchange according to the second embodiment of the present invention from the upper surface side.

FIG. 8 is a cross-sectional explanatory view for explaining the door mounting structure of the telephone exchange according to the second embodiment of the present invention from the cross-section.

[Explanation of symbols]

1 telephone exchange 2 body 3 casing 4 Door hook 5 Fitting recess 5a Narrow part 6 insertion groove 6a insertion hole 7, 7a Back side projection fitting part 8 Fitting groove 10 Door 10a Top side extended portion 10b Lower-side extended portion 11 protrusion 12 Hook 13, 13a Back side protrusion 14 Fitting convex part 15 Door side guide 16 Body side guide 16a inclined part

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 4E360 BA06 BB05 BB16 ED28 GA04                       GA46 GB23                 5K073 AA02 AA07 CC28

Claims (8)

[Claims] 1. A telephone exchange comprising a main body and a door portion provided on the front side of the main body, the telephone exchange being substantially perpendicular to the front side of the door portion from the upper end portion of the door portion. An upper surface-side extending portion that is extended and formed; a door locking portion that is disposed at an upper end portion of a front surface of the main body so as to project toward the front surface side; and the upper surface-side extending portion is covered and locked; A protrusion formed to protrude to the lower surface side of the upper surface side extended portion, a fitting recess formed on the upper surface of the door locking portion into which the projection is fitted, and a narrow width at one end of the fitting recess. A telephone exchange, comprising: a narrowing portion formed on the. 2. The fitting recess is formed to be elongated in a lateral direction of the main body, and the protrusion is slidably formed in the fitting recess. The listed telephone exchange. 3. A hooking portion formed on the lower surface side of the upper surface side extending portion so as to project toward the main body, and an opening formed on the front surface side of the main body formed on the upper surface of the door hooking portion. The telephone exchange according to claim 1 or 2, further comprising: an insertion hole into which the hooking portion is inserted. 4. The insertion part is formed to be elongated in a lateral direction of the main body, and the hooking part is slidably formed in the insertion hole part. Telephone switchboard. 5. A back side protrusion formed on a side portion of the main body on a back side of the door portion, and a back side protrusion formed on a front side of the main body by opening toward a side surface of the main body. The telephone exchange according to any one of claims 1 to 4, further comprising: a back side projection fitting portion to which is fitted. 6. A fitting convex portion projectingly provided on the main body side at a lower portion of the door portion, and a fitting groove portion formed at a lower portion of the main body into which the fitting convex portion is fitted. The telephone exchange according to any one of claims 1 to 5. 7. A door-side guide portion projectingly provided on the back surface side of the door portion, and the door-side guide portion which is formed to be inclined from the front surface side to the side surface side of the main body when the door portion is mounted. 7. A telephone exchange according to any one of claims 1 to 6, further comprising a main body side guide portion having an inclined portion and arranged on the main body. 8. The door-side guide portion and the main body-side guide portion are horizontally overlapped when the hook portion is inserted into the insertion groove portion and the door portion is brought into contact with the front surface side of the main body. 8. The telephone exchange according to claim 7, wherein the telephone exchange is arranged so as not to become.