JPS6341460B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a telephone equipped with a function switch for making on-hook calls, and in particular to a telephone that improves operability and operational reliability by improving the structure of the function switch and the function switch. Regarding.

Conventionally, in addition to a foot switch, a function switch with a line connection function is provided, and by operating this function switch, you can make a call to the other party without holding the handset in your hand, that is, while the phone is on-hook, and you can also check the response of the other party. There are telephones that allow confirmation to be performed using a built-in speaker. In this case, the feature switch keeps the subscriber telephone line connected,
Since it is necessary to turn the speaker on and off during a call, a so-called self-locking switch is used, in which the first push-in operation locks the speaker, and the second push-in operation releases the locked state and restores the switch.

However, in the case of a telephone equipped with this kind of function switch for on-phone calls, for example, when the function switch is used to make a call and the other party answers, the speaker is turned off when picking up the handset and talking. Similarly, when you make a call using the handset with the speaker on and end the call, you have to turn the function switch to release the subscriber line. I finally had to operate it and turn it off. Therefore, the operation was extremely complicated. Also, when ending a call, you may forget to turn off the function switch by simply turning the handset on-hook. This is extremely undesirable as it causes inconveniences such as.

The present invention has been made focusing on the above circumstances,
The purpose of this is to automatically return the function switch to the OFF state in conjunction with the hook operation of the handset, thereby reducing the burden on subscribers and ensuring that they can end a call. To provide a telephone that has high operability and operational reliability, requires fewer new parts, has a simple structure, and is inexpensive.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. 1 and 2 are perspective views showing the external appearance of the telephone according to the same embodiment, and FIG. 1 shows the handset 1 set in a predetermined position on the telephone body 2, that is, in the on-hook state; FIG. 2 shows a state in which the handset 1 is picked up, that is, in an off-hook state. 3 in the figure is a hook button.
While the phone is on-hook, press function button 4.
A call can be made by pressing on the button to turn on a function switch, which will be described later, and then operating the push button dial 5. At this time, the dial confirmation tone, the other party's response voice, etc. are generated from the speaker 6 provided in the telephone main body 2. The speaker 6 remains on as long as the function switch is turned on even when a call is being made using the handset 1, and is turned off when the function switch is turned off.

FIG. 3 is a sectional view taken along the line X--X in FIG. 2, showing the internal structure of the telephone. In the figure, the function switch 7 is installed on a board 22 fixed to a telephone housing 21. This function switch 7
As shown in FIG. 4, this is a self-locking push switch, and is turned on and off by transmitting the operating force of the function button 4 to the operating lever 71 via the crank 41 and pushing it in the direction of arrow A. Further, the tip of the cam plate 73, which serves as a locking member for keeping the function switch 7 in the locked state, has a protruding portion 74 formed by extending the tip and bending the extended portion into a V-shape.
is provided. This protrusion 74 has two slopes that convert the operation of the interlocking lever 8 (described later) into vertical movement of the cam plate 73. The cam plate 73 is made of a thin plate, and the diameter of the hole through which the shaft 72 is inserted is the same as that of the shaft 7.
It is larger than the diameter of 2, and therefore the arrow E
It is rotatable in the direction shown in FIG.

On the other hand, the hook button 3 is provided on the telephone housing 21 via a shaft 31 so as to be rotatable in the direction of arrow B--B' as shown in FIG.
It is constantly biased upward (in the direction of arrow B) by a tension spring 91 and a lever 92 provided in the. Further, a pin 32 is provided at the lower end of the hook button 3 so as to protrude in the width direction thereof. This pin 3
Reference numeral 2 is for operating the interlocking lever 8 by coming into contact with one end 8a of the interlocking lever 8, which will be described later.

Now, the interlocking lever 8 has an L-shape, and a shaft 81 is rotatable in the direction of arrow C-C' around its bent part.
Although it is attached to the circuit board 22 via the above, it may also be attached to the telephone housing 21. A tension spring 82 is stretched between one end 8a of the interlocking lever 8 and the base plate 22 or the telephone housing 21, so that the interlocking lever 8 is always biased in the direction of arrow C. Furthermore, the movement of the interlocking lever 8 in the direction of arrow C' is as follows:
This is done by the pin 32 of the hook button 3. On the other hand, C- of interlocking lever 8
By rotating in the C' direction, the other end 8b comes into contact with a protrusion 74 provided on the cam plate 73 of the function switch 7, and the hook button 3 is moved upward, that is, as shown by the dashed line in FIG. When the hook button 3 is in the off-hook position, that is, when the hook button 3 is off-hook, it abuts the slope of the protrusion 74 on the function switch 7 side, and when the hook button 3 is positioned downward, that is, when it is on-hook, it abuts the slope of the protrusion 74 on the non-function switch side. It is arranged like this.

Because of this structure, if you press the function button 4 with the handset 1 on-hook to make a call without picking up the handset 1, and when the other party answers, you pick up the handset 1 and make a call, you can 1 is picked up (off-hook), and hook button 3 moves to the 5th position.
Rotate upward (in the direction of arrow B) as shown by the two-dot chain line in the figure,
As the pin 32 moves upward, the tension spring 82
The interlocking lever 8 rotates in the direction of the arrow C and enters the state shown by the two-dot chain line in FIG. At this time, the other end 8b of the interlocking lever 8 slides on the slope of the protrusion 74 provided on the cam plate 73 on the non-function switch side and lifts the cam plate 73 upward as shown by arrow D in FIG. , to the slope of the protrusion 74 on the function switch 7 side. As a result, the function switch 7 is
As the cam plate 73 lifts up, the pin 75 and the cam plate 73 are disengaged, and the operating lever 71 is urged by the compression spring 76 and returns to the push-off state. Therefore, the function switch 7 is turned off, and the speaker 6 provided in the telephone main body 2 is turned off, and as a result, the sound being generated from the speaker 6 is cut off. After that, the user can make a call using the handset 1. Note that when you end a call and place the handset 1 on the phone body 2, the hook button 3 rotates downward (in the direction of arrow B') and the interlocking lever 8 moves in the direction of arrow B'.
The cam plate 73 moves in the C' direction, and at this time the cam plate 73 is once lifted upward (in the direction of arrow D).
Since the function switch 7 is already turned off, its state does not change at all.

On the other hand, when a call is being made using the handset 1 with the function switch 7 turned on and the speaker 6 operating, such as when a large number of people need to listen to the content of the call, it is necessary to end the call. When the handset 1 is placed on the telephone body 2, the hook button 3 rotates downward (in the direction of arrow B') according to this operation (on-hook operation), and the interlocking lever 8 rotates in the direction of arrow C' accordingly. do. At this time, the other end 8 of the interlocking lever 8
b is the function switch 7 of the protrusion 74 of the cam plate 73;
After sliding on the side slope and once lifting the cam plate 73 upward, it moves to the slope on the non-function switch side of the protrusion 74. Therefore, the function switch 7 is activated by the operation lever 71 when the cam plate 73 is lifted.
is returned to the state after push-off and turned off.
As a result, the speaker 6 is disconnected, the connection with the subscriber line is also disconnected, and the system enters a standby state.

In this way, with the telephone of this embodiment, the vertical movement of the hook button 3 is transmitted via the interlocking lever 8 to the protrusion 74 provided on the cam plate 73 of the function switch 7, and the protrusion 74 moves the cam plate 73. Since the function switch 7 is turned off by lifting the phone, you can make a call using the function switch 7 and then turn the handset 1 on.
When transitioning to a call using , or when making a call with the function switch 7 on and ending the call, simply picking up or placing the handset 1 automatically turns the function switch 7 off. be able to. Therefore, it is no longer necessary to press the function button 4 to turn off the function switch 7 as in the conventional case, so that the operational burden on the user is reduced and the operability can be improved. In addition, the problem that occurred when the telephone was left connected to the subscriber's line by simply performing the on-hook operation of the handset 1 at the end of a call and forgetting the push-off operation of the function button 4 was resolved, and the telephone remained connected to the subscriber line. Operation reliability can be improved. Furthermore, since this can be realized by simply providing the V-shaped protrusion 74 on the cam plate 73 of the function switch 7 and the interlocking lever 8, there is an advantage that the structure is simple and can be manufactured at low cost.

Next, another embodiment of the present invention will be described with reference to FIG. In FIG. 6, the same parts as in FIGS. 1 to 5 are given the same reference numerals. The feature of this embodiment is that the operating direction of the operating lever 71 of the function switch 7 is approximately the same as that of the hook button 1.
0 rotation direction, and a protrusion 10a is provided on the rotation side end of the hook button 10, and this protrusion 10a is brought into contact with a V-shaped protrusion 74 provided on the cam plate 73. The feature is that the up and down movement of the hook button 10 is directly transmitted to the cam plate 73 to turn off the function switch 7.

Therefore, unlike the previous embodiment, the interlocking lever 8 is not required, and the structure can be simplified accordingly.

Note that the present invention is not limited to the above embodiments. For example, in the embodiment described above, a direct push type switch was used as the function switch, but a piano type switch may also be used. In addition to the V-shape, the protruding part may also be a substantially V-shape in which two slopes are slightly curved, or a curved part or a flat part formed at the apex connecting each slope. Any device may be used as long as it operates the locking member of the function switch in conjunction with the hook operation to release and restore the locked state of the function switch. Further, the telephone may be of a type that is placed on a table or of a type that is hung on a wall. In addition, various modifications may be made to the shape and structure of the hook button, the shape of the function button, the mechanism for transmitting the operating force of the function button to the function switch, the structure of the locking member of the function switch, etc. without departing from the gist of the present invention. It can be implemented by

As detailed above, a protrusion is provided at the end of the locking member of the function switch by extending this end and bending the extension, and the slope of the protrusion is used for the hook operation of the hook button. According to the present invention, the responsive transmission portion is slidably brought into contact with the locking member in conjunction with the hook operation of the hook button to operate the locking member to release and restore the locked state of the function switch. By automatically returning the function switch to the OFF state in conjunction with the hook operation, it is possible to reduce the burden on the subscriber and ensure that the call end operation can be performed reliably.This improves operability and operational reliability. Highly sexual,
Moreover, it is possible to provide an inexpensive telephone with a simple structure and a small number of newly required parts.

[Brief explanation of the drawing]

1 to 5 show one embodiment of the present invention. FIGS. 1 and 2 are perspective views showing the external appearance of the telephone, FIG. 3 is a sectional view showing the internal structure of the telephone, and FIG. 4 is a sectional view showing the internal structure of the telephone. The figure is a perspective view showing the structure of the function switch.
Figure 5 is a cross-sectional view showing the structure near the hook button.
FIG. 6 is a block diagram of main parts showing another embodiment of the present invention. 1...Handset, 2...Telephone body, 3, 10...
... Hook button, 32 ... Pin, 4 ... Function button, 6 ... Speaker, 7 ... Function switch, 71
...Operation lever, 73...Cam plate, 74...Protrusion, 8...Interlocking lever, 9...Hook switch.

Claims (1)

[Scope of Claims] 1. A telephone equipped with a hook switch and a self-locking function switch, which includes a transmitting section that responds to the hook operation of a hook button that is linked to the hook switch, and a locking member that maintains the locked state of the function switch. The locking member is provided by extending the end portion and bending the extended portion, and has a slope on which the transmitting portion comes into contact and slides, so that the locking member locks the function switch in conjunction with the hook operation of the hook button. 1. A telephone comprising a protrusion that operates to release and recover from a state. 2. The telephone set as claimed in claim 1, wherein the transmitting portion comprises a projection integrally provided on the hook button. 3. The telephone set according to claim 1, wherein the transmission section comprises a transmission member fixed to the hook button and an interlocking lever that transmits the movement of the transmission member to the locking member of the function switch.