JPS60250764A - Holding adaptor of telephone set - Google Patents

Abstract

PURPOSE:To prevent a telephone circuit from being turned to the holding state in error at a time other than talking by arranging a holding switch on a hand set mounting part of a telephone set body so that a holding switch can be depressed in the on-hook status of the hand set. CONSTITUTION:When the holding switch 10 is depressed during a talking period in which the hand set 4 is hooked off, a holding set signal Vs in the ''H'' level is outputted and a telephone circuit 1 is kept at the holding state. When the hand set 4 is set on the telephone set body 3 as the on-hook state, the holding switch 10 is kept at the hidden state under the hand set 4 and can not be touched until the hand set 4 is hooked off, so that the telephone circit 1 can be prevented from the holding state due to the careless operation of the holding switch 10.

Description

[Detailed description of the invention] [Technical field 1 The present invention relates to a telephone hold adapter.

[Background technology 1] Conventionally, when you want to change the caller during a call using a normal telephone (excluding multi-function telephones such as home telephones),
Alternatively, when a user wants to interrupt a call and do something, there is a problem of having trouble finding a place to put the handset. Therefore, a stand for the handset has been provided near the telephone, or the handset 4 has been placed on a hold tone generator 20 placed on the side of the telephone 2, as shown in FIG. However, in the former case, there is a problem that surrounding sounds can be heard, and in the latter case, a space is required to place the hold music generator 20 on the side of the telephone Wi2. However, there was a problem in that the handset 4 could not be held stably if there was little space. That is, the handset 4 is most stable when placed on the telephone body 3, and tends to become unstable when placed on the hold tone generator 20 or the like.

Therefore, in order to solve this problem, a device on hold has been devised in which the handset 4 can be placed on the telephone body 3 where it can be held most stably and set on hold. That is, this kind of hold adapter A, which is the basis of the present invention, is inserted between the telephone set 5 and the telephone set 2, as shown in FIGS. is provided with a plug (not shown) on the back to be connected to the telephone outlet 5,
Outlet 7 to which the plug 6 of the telephone 2 is connected
is provided at the front. , 10 is an interlocking contact 10a
, 10b, -11 is a hold tone generation circuit, 12 is a coupling transformer that transmits the output of the hold tone light/main circuit 11 to the telephone line 1, and 13 indicates that the power circuit 4 is on hold. The speaker is a speaker for
A hold circuit is formed by the contact 1°Oa of 4 is placed on the telephone body 3 in an on-hook state, the telephone line 1 can be set on hold.

In the figure, N is a primary winding, and 10b is a power on/off contact.

If you are currently on a call and would like to set it on hold, press the hold switch 10 located on the top of the hold adapter A.
If you press and turn on contacts 10a and 10b, contact 1
0g and the secondary winding MN2 of the coupling transformer 12, the telephone line 1 is connected to form a DC loop, and the telephone line 1 is set to a hold state. At this time, contact 1
The power supply circuit 13 controlled by 0b operates and the hold tone generation circuit! 1, the hold tone signal generated by the hold tone generation circuit 11 is sent to the telephone line 1 via the coupling transformer 12 to notify the other party of the call that the call is on hold, and the hold tone signal is transmitted to the telephone line 1. The sound is emitted from the speaker 14 to notify that the telephone 2 is on hold. In this case, even if the handset 4 is placed on the telephone main body 3 and placed in the on-hook state, the on-hook state is maintained, so the handset 4 can be held in the most stable state, that is, on the telephone main body 3. As shown in the figure, there is no need for a space for arranging the holding means for the handset 4 on the side of the telephone 1, and the handset 4 can be held stably in the hold state. To cancel the hold state, press the hold switch 10 again to turn off the contacts 10a and 10b. The disadvantage is that the telephone line may sometimes be operated carelessly, resulting in the telephone line being erroneously closed and left on hold.

[Object of the Invention] The present invention has been made in view of the above points, and its purpose is to set the telephone line to a hold state while the handset is placed stably on the telephone body and in the on-hook state. To provide a holding adapter which is simple in configuration and inexpensive, which can prevent a telephone line from being set on hold when a call is not in progress.

[Disclosure of the Invention 1] Fig. 1 is a diagram showing the configuration of the present invention, and similarly to the basic example shown in Figs. A holding adapter A is provided with a holding circuit that sets the telephone line 1 to a holding state when the handset 4 is placed on the telephone main body 3 in an on-hook state.
In this case, a hold switch 10 that turns on the switch means and closes the telephone line is arranged on the handset 4 resting part of the telephone main body 3, so that the hold switch 10 cannot be operated with the handset 4 on the hook. It is something.

Accordingly, in the present invention, a hold switch 10 for controlling a switch means for freely closing the telephone line 1 is disposed on the receiver of the handset 4 of the telephone main body 3, and the handset 4 is placed on the hook. Since the hold switch 10 cannot be operated during a call, there is an effect that the telephone line 1 will not be set to the hold state due to the hold switch 10 being inadvertently operated when the call is not in progress. Since the above effects can be obtained simply by appropriately setting the arrangement position of the switch 10, the structure is simple and inexpensive.

(Embodiment 1) Figures 412 to 4 show an embodiment of the present invention, in which the switch means in the basic example is changed so that the telephone diagram Is, 1 is closed when the hold switch 10 is operated. The holding switch 10 is formed by a latch means 17 consisting of a set 7-lip 70 tab F1, a 7-lip 70 tab F, and an analog switch AS controlled by the output, It was placed in 18 is an off-hook detection switch that detects that the handset 4 is off-hook;
The off-hook detection switch 18 is provided adjacent to the hold switch 10 on the resting part of the handset 4.
Invert the output with the inverter IN to 7 rip 70 rip F
1 is reset. That is, by inverting the off-hook detection signal Vo and inputting it to the reset terminal of the 7-rip 70 knob F1, when the off-hook detection signal Vo is obtained (when it changes from "H" level to L level), the 7-rip 70 When knob F1 is reset, analog switches A and S are turned off, and when handset 4 is picked up, the hold state of telephone line 1 is automatically released. hold switch 10 and off-hook detection switch 18
As shown in FIG. 2, when the handset 4 is off-hook, the push button is not pressed and both are off, and when the handset 4 is on-hook, only the push button of the off-hook detection switch 18 is pressed and turned on. It is supposed to be done.

Figure 5 is a time chart showing the operation.
is the 77 state of the handset, (b) is the off-hook detection signal Vo, (c) is the hold set signal Vs which is the output of the hold switch 10, (d) is the inverter IN output, and (e) is the 7 lip 70 tub F, output is shown. Currently, during a call in which the handset 4 has been picked up and is off-hook, the hold switch 10 can be pressed, and the hold switch 1o can be pressed as needed.
When the push button is pressed to turn on, the hold switch 1o is turned on and the hold set signal Vs becomes H'' level.This hold set signal Vs causes the latch means 1
7 lip 70 knob F is set, analog switch AS is turned on, telephone line 1, analog switch AS
A direct current loop is formed in the hold tone generating circuit 11, and the telephone line 1 is put on hold. When the handset 4 is placed on the telephone body 3 in this state, the off-hook detection switch 18 is turned on and the off-hook detection signal 0 goes to HI+ level, and the inverter IN output goes to "L" level, but the 7 rip 70 Since the knob F1 is reset at the rising edge of the inverter IN output, the telephone face H1 remains set to the hold state. Next, when the handset 4 is off-hook, the off-hook detection signal 0 is output from the off-hook detection switch 18, and at the rising edge of the inverter IN output, the 7° rip 70 knob F is reset, the analog switch AS is turned off, and the handset is set. 4 is picked up, the hold state of telephone line 1 is automatically released. In this way, when the handset 4 goes off-hook, the telephone diagram 11A1 is automatically released from the hold state, and an operation to turn off the hold state is unnecessary, making the operation simple. On the other hand, when the handset 4 is placed on the telephone body 3 and in an on-hook state, the hold switch 10 is hidden under the handset 4 and cannot be operated unless the handset 4 is picked up. This prevents the telephone line 1 from being placed on hold due to careless operation of the hold switch 10.

(Embodiment 2) FIGS. 6 to 8 show another embodiment in which the holding switch 10 and the off-hook detection switch 18 are integrated in the vertical direction to form a common switch 25. first and #2 fixed points S7 and S2 to be grounded;
It is formed by a common fixed contact S, and a movable contact S, and when the handset 4 is in an on-hook state and the handset 41 pushbutton 26 is pressed, the contacts S2,
When the off-hook detection switch contact 18a consisting of S3 is turned on and the push button 26 is further pressed downward, the contact S1
, S3 is also turned on, and when the handset 4 is taken off-hook, both switch contacts 10a and 18g are turned off. Reference numeral 19 denotes a reset circuit for resetting the 7-lip 70-tube F, and is formed by a delay circuit DE, a 7-lip 70-tube F2, an inverter 1N2, and an AND. Note that the other configurations are the same as in the first embodiment.

Fig. 9 is a time chart showing the operation, and Fig. 9(a)
is the hook state of the handset, (b) is the off-hook detection switch contact 18a output Vo', (C) is the hold switch contact 10a output Vs', (d) is the inverter IN output, and (e) is is the delay circuit DE output, the same figure (f
) is a 7-rip 70-tube F2 output, and (g) in the same figure is an ANDA.
ND output, Figure (h) shows the output of the flip 70 tube F. Now, when the handset 4 is picked up and a call is in progress, the push button 26 of the common switch 25 can be pressed.If you want to set the hold state and press the push button 26 deeply, the off-hook detection switch contact 18a and the hold switch will be activated. Contacts 10a are both turned on, 7 lip 70 knob F1 is set at the output of hold switch contact 10a, and analog switch AS is turned on.
Telephone line 1 is placed on hold. At this time, even if the handset 4 is on-hook, the reset circuit 19 does not output a set signal (rise signal) and the hold state is maintained, so that the handset 4 can be held in a stable state. Next, when the handset 4 is picked up, the off-hook detection switch contact 18g is turned off, the AND output becomes "H" level, and the 7 rip 7
When the 0 button F is reset, the analog switch ~S is turned off and the hold state of the telephone line 1 is automatically released. On the other hand, when the handset 4 is on-hook, the push button 26 of the common switch 25 cannot be operated, and the telephone port #X1 is not set to the hold state except during a call.

FIG. 10 shows another specific example of the common switch 25, in which when the handset 4 is on-hook, the point 18g after the off-hook detection switch is turned on, and when the handset 4 is off-hook, the push button 26 is pressed deeply. The hold switch contact 10a is turned on when the hold is set.

[Effects of the Invention 1] As described above, the present invention is equipped with a switch means that allows the telephone line to be freely connected in a DC manner, and sets the telephone line to a hold state when the handset is placed on the telephone body in an on-hook state. Since it is equipped with a hold circuit, the telephone line can be placed on hold while the handset is placed stably on the telephone body in an on-hook state, and the hold switch that turns on the switch means can be set to the on-hook state with the handset placed stably on the telephone body. This prevents the hold switch from being operated when the handset is on-hook, preventing the phone line from being accidentally set on hold if the hold switch is inadvertently operated when the handset is not on the hook. This has the effect of preventing you from being left behind. Furthermore, the placement of the hold switch is appropriate! ! ! Since the effective nest can be obtained only in the +111- chamber 71, the structure is simple and inexpensive.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a schematic configuration of the present invention, FIG. 2 is a perspective view of essential parts of an embodiment of the present invention, FIG. 3 is a circuit diagram of the same, and FIG.
5 is an explanatory diagram of the operation of the same as the above, FIG. 6 is a perspective view showing the main part of another embodiment of the above, and FIG. 7 is a specific example of the main part of the above. 8 is a circuit diagram of the same as above, FIG. 9 is an explanatory diagram of the same as above, FIG. 10 is a diagram showing another specific example of the common switch as above, and FIG. 11 is a schematic configuration of a conventional example The figures shown in FIGS. 12 to 14 are diagrams showing basic examples of the present invention. 1 is a telephone line, 2 is a telephone set, 3 is a telephone main body, 4 is a handset, 10 is a hold switch, and 17 is a switch means. Agent Patent attorney Ishi 1) Chief 7 Figure 11 4 z Figure 14 'Procedural amendment (voluntary) October 1, 1980 Patent application No. '+06'? No. 32, No. 2, Name of the invention, Pending data on the telephone 3, Relationship with the case of the person making the amendment Patent applicant address: 1048 Kadoma, Kadoma City, Osaka Prefecture Name (
583) Matsushita Electric Works Co., Ltd. Representative Iku Kobayashi 4, Agent 5, Application number for correction of the date of the amendment order Application number 1983-106932 1, "Power supply port" on page 3, line 10 of the specification section of the application was changed to " I have corrected it to "power supply circuit." 2. On page 5 of the same page, line 13, "set" is corrected to "set". Agent Patent Attorney Ishi 1) Ai Shichi

Claims (1)

[Claims] (1) A hold adapter equipped with a switch means that allows the telephone line to be freely closed using direct current, and a hold circuit that sets the telephone line on hold when the handset is placed on the telephone body in an on-hook state. This telephone holding device is characterized in that a holding switch for turning on the device is disposed on a handset mounting part of the telephone main body, and the holding switch cannot be operated with the handset on the hook.