JPS5912875Y2 - Remote call stop device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a remote call stop device for stopping or canceling calls on a subscriber's line at an unmanned telephone exchange or the like under control from a remote test station, and in particular, visually checks whether the device is opened or closed. It is related to things that are possible and miniaturized.

Call termination operations on the subscriber line or vice versa, which are performed in cases such as non-payment of charges by the subscriber, are performed by inserting a safety device into the subscriber line at the connection point between the external line and the station equipment. This is done by cutting or closing the contacts.

When performing this stop operation or release operation from a remote test station, a remote call stop device 2 with a built-in self-holding relay 1 is inserted into the subscriber's line as shown in Figure 1 a, l) to perform the remote test. This relay 1 is controlled from the station, and the contacts of this relay 1 are controlled to open and close.

Therefore, when the self-holding relay 1 is in the operating state or in the recovery state, the subscriber line is in the disconnected state or in the connected state.

On the other hand, in the conventional remote call stop device 2, a printed board 4 with circuit components mounted thereon, a self-holding relay 1 from which terminals 5 are led out, etc. are housed in an outer box body 3a, and the outer box lid part 3b is closed. Since it is closed and the case 11 and outer box 31 of the self-holding relay 1 are present, the open/closed state of the contacts of the self-holding relay 1, that is, the above-mentioned operating state or recovery state, cannot be visually observed from the outside.

This means that when inserting a large number of remote call termination devices 2 into the insertion part of a protection cabinet in which a number of remote call termination devices 2 are mounted in a stacked state, the contact open/close state of the self-holding relay 1, that is, the disconnection state of the subscriber line, is checked. This leads to inability to confirm.

Up to now, this confirmation has been performed by electrical operation, or the desired contact opening and closing states have been set by electrical operation.

However, this type of confirmation operation is extremely complicated.

In addition, in the remote call stop device 2 shown in FIG.
Since the dimensions of the insertion portion of the safety device rack, which is installed in a stacked state, are also closely determined, it is not desirable to increase the external size.

Therefore, in view of the above-mentioned drawbacks, the present invention has been devised based on a novel idea with the aim of providing a remote call termination device that has a structure that is visible from the outside and is thinner than ever.

In order to achieve such an object, the present invention is a remote call stop device in which a self-holding type relay is housed in an outer box, in which a flange is protruded around the case of the self-holding type relay, and the case is placed in the outer box. In addition to supporting the case, a window hole is provided in each of the lid and side wall of the outer box, the case is exposed to the outside of the outer box through the window hole in the lid, and a transparent cover is provided on the window hole in the side wall. All or part of the self-holding relay is made of a transparent material so that the open/closed state of the contacts of the self-holding relay can be visually observed from the outside of the case, and furthermore, the open/closed state of the contacts can be visually observed from each window hole of the outer box. Features:

Here, a second embodiment of the remote call stop device according to the present invention will be described.
This will be explained with reference to the figures and FIG.

In FIGS. 2 and 3, the same parts as in FIGS. 1a and 1 are designated by the same reference numerals for convenience of explanation.

The remote call stop device 2 as a whole includes an outer box 31, more specifically, a flexible printed board 4 on which circuit components are mounted is disposed inside the outer box body 3a, and a self-holding relay 1 from which terminals 5 are led out is housed. and the outer box body 3a
An outer box lid part 3b is attached to close the box.

Furthermore, contact portions 6a and 6b are fixed to the outer box 31 to be inserted into the safety device rack.

The case 11 of the self-holding relay 1 is divided into a case body 11a and a case lid 11b.
A collar portion 11C is protruded around the periphery.

This flange portion 11C has the role of fixing the case 11 to the inner wall of the outer box lid portion 3b and preventing the case 11 from protruding outside through a window hole, which will be described later.

Therefore, if this role is fulfilled, the flange portion 11C may be provided around the case body 11a.

However, as will be described later, it is also necessary to reduce the thickness of the remote call stop device 2, so care must be taken to ensure that the case lid 11b does not protrude from the window hole, and even if it does, it should be minimal.

The case 11 is made entirely or partially of a transparent material so that the open/closed state of the armature (contact) 11d of the self-holding relay 1 can be visually observed from the outside.

Corresponding to the case lid 11b, more specifically, the outer box lid body 3b is formed with a window hole 3C into which the case lid 11b can fit, so that the case 11 is exposed to the outside of the outer box 31. It has a structure that

This exposure means that the case lid 11b is flush with the outer box lid 3b, or even if it protrudes, it only slightly protrudes from the outer box lid 3b, and the case lid 11b is thin enough to be used as a remote communication device. must be taken into account.

Furthermore, in the present invention, a window hole 3d is provided in the side wall of the outer box 31 so that the contact 11d of the self-holding relay 1 can be most easily seen even when the device 2 is mounted in a stacked state on the safety device rack. A transparent cover 3e is attached to this window hole 3d.

In this case, it goes without saying that the case body 11a is also made of a transparent material.

However, in order to visually check the open/closed state of the contacts with the call stop device 2 removed from the safety cabinet, it is necessary to open the case lid 11.
If the open/closed state of the contact can be visually observed from the window hole 3d, it is not necessary to visually observe it from the window hole 3d, and the entire case lid 11b and case body 11a may be made of a transparent material.

Further, the terminal 5, which is the bottom of the outer box body 3a, is attached at a position where the outer box body 3a is formed thin, contributing to making the remote call stop device thinner.

When the remote call stop device is installed on the safety device shelf, by visually observing the contact 11d through the window hole 3d, whether the contact 11d of the self-holding relay 1 is in the solid line state or the chain line state in Fig. 3 is determined. In other words, whether it is in the restored state or in the operating state can be visually observed through the transparent case 11 and the transparent cover 3e.

As explained above in the embodiments, according to the present invention, a flange is made to protrude around the case of a self-holding type relay, and the case is supported by the outer box, and the lid and side walls of the outer box are respectively provided. A window hole is provided and the case is exposed to the outside of the outer box through the window hole in the lid, a transparent cover is provided to the window hole in the side wall, and all or part of the case is made of a transparent material. By making the contact opening/closing status of the self-holding relay visible from the outside of the case, and further making the contact opening/closing status visible through the respective window holes in the outer box, the contact opening/closing status of the self-holding relay can be viewed from the outside. Direct visual inspection made it possible to save labor by eliminating the need for conventional confirmation operations.In addition, by exposing a part of the case outside the outer box, the entire case could be made thinner by at least the thickness of the outer box lid, making it possible to This greatly contributes to the miniaturization of safety cabinets in which remote stop devices are mounted in a stacked manner.

[Brief explanation of the drawing]

Figures 1a and l) show an example of a conventional remote call termination device, in which a is a perspective view and b is a sectional view. FIG. 3 is a sectional view of the remote call termination device shown in FIG. 2. In the drawing, 1 is a self-holding relay, 2 is a remote call stop device, 3C and 3d are window holes, 3e is a cover, 11 is a case, 1
1a is a case body, 11b is a case lid, 11C is a flange, 11d is a contact, and 31 is an outer box.

Claims (1)

[Scope of utility model registration request] In a remote call termination device in which a self-holding type relay is housed in an outer box, a flange protrudes around the case of the self-holding type relay to support the case with the outer box, and a lid portion of the outer box and A window hole is provided in each side wall, the case is exposed outside the outer box through the window hole in the lid, and a transparent cover is provided on the window hole in the side wall, and all or part of the case is made of a transparent material. A remote call stop device characterized in that the open/closed state of the contacts of the self-holding relay is visible from outside the case, and the open/closed state of the contacts is made visible through each window hole of the outer box.