JPS61194954A - Multiple-connected switch - Google Patents

Abstract

PURPOSE:To enable an outgoing operation without raising a hand set and to realize a miniaturization by adopting a mechanism in a multiple-connected switch used in the hook switch of a telephone set, etc. CONSTITUTION:An input lever 37 which is interlocked to a knob is raised in a non-call state when the hand set is placed on a base set and a rotor 10 is in a position that is turned contraryto a reverse direction rotating power by a helical spring 34 and therefore, there is no input of the reverse direction rtating power against a rotor 9 and the rotor 9 receiving only one direction rotating power by a helical spring 17 is set at the same attitude of a rotor 8. By this reason, both pressure receiving tongue pieces 18 and 19 of the rotor 8 and 9 hold upwards a push button 20. Next, when the push button 20 is depressed, the button is locked with a lock pin 23 and also by the depression of each pressure receiving tongue piece 18 and 19 to the downwards and the rotation of the rotors 8 and 9, a speaker receiving circuit and a network circuit are opened and a call outgoing is possible. Because the network circuit is opened as stated above with leaving the hand set on the base set 38, the call outgoing is operated with a single hand.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention provides a multiple switch having multiple switch functions and for controlling these different switch functions in an interconnected manner. In particular, the present invention relates to a multi-switch switch useful as a telephone hook switch that enables one-handed dialing operation.

(Prior Technology) In recent years, telephones have not only been improved in basic transmitter/receiver functions, but have also been equipped with various functions for ease of use. For example, a device that allows you to make a call without having to pick up the handset is one example. Conventionally, such additional functions have been realized through purely electrical processing, by installing a control box equipped with a control circuit such as a relay separately from the telephone, and operating a specific push button on the telephone. The control circuit, along with the speaker receiver circuit, opens the network circuit to allow outgoing calls without having to pick up the handset.

(Problems to be Solved by the Invention) However, telephones equipped with the above-mentioned control circuit are very expensive, and therefore cannot be widely used in general households. In order to do this, a separate space must be provided, and since the voltage and current used directly by the telephone are strong, it is not possible to add the above functions directly into the telephone unless the above control circuit is installed. There are other problems.

Therefore, it is an object of the present invention to realize the above functions using a mechanical mechanism, so that it is small, inexpensive, and can be easily installed in a telephone, and that it can be easily installed in a telephone by using a voltage and current directly used by the telephone. The objective is to provide a multiple switch that does not hinder the addition of functions.

(Means for Solving the Problems) The present invention provides a first rotor and a second rotor for controlling switch contact ON/OFF, each of which is biased to rotate in one direction, and a second rotor that is rotated in one direction. A third rotor, which is biased to rotate in the opposite direction with a strength that overcomes the rotational biasing force, is individually rotatably supported approximately in a straight line, and the second rotor and the third rotor are rotated in opposite directions. An input lever is connected to the rotor 83 to forcibly rotate the rotor in the reverse direction against the reverse rotation urging force, and between the first and second rotors, respectively. A push button set to an initial state by a unidirectional rotational biasing force is disposed, and a lock pin is provided that engages with the push button to lock the push button in a pressed state against the unidirectional rotational biasing force, and The input lever is provided with a cam portion for lock release operation that causes the lock pin to come into contact with and separate from the input lever during its rotation.

(Example) An embodiment of the present invention will be described below with reference to the drawings.

Fig. 1 is a plan view of the housing 2 with the lid l (shown in Fig. 2) removed to expose the internal mechanism. The diagonal line does not mean a cross section; this is to avoid confusion between the two components.
The same applies to the diagonal lines in the figure and FIG.

The housing 2 has rotor chambers 4 and 5 formed on the left and right sides with a narrow small chamber 3 in the center, and a third rotor chamber partially opened to the outside of the right rotor chamber 5. In the rotor chambers 4 and 5.8 in which the rotors 6 and 6 are formed, rotors 7 and 8.9 are coaxially housed and supported separately and rotatably, but the first rotor 8 and the second rotor Reference numeral 9 controls the on/off of required switch contacts by its rotational operation, and in this embodiment applied to a telephone, the first rotor 8 controls on/off for the speaker receiving function. The control rotor, the second rotor 9, is an on/off control rotor for the network function. The first rotor 8O is a handset (
(not shown) is rotated in conjunction with the raising and lowering of the second
The rotation of the rotor 9 is restricted.

The first rotor 8 and the second rotor 8 move the fixed terminal 11 and the movable terminal 12 into and out of contact with each other as shown in FIG.
(on/off), and a cam protrusion 13 is provided on the circumferential surface of the rotor for this purpose. However, the number of switch contacts that are turned on and off in each rotor 8, 3, and the cam protrusion 13
The shape and arrangement of the fixed terminal 11 in FIG.
, the holes 14 and 15 for mounting the movable terminal 12 are only shown.

The first rotor 8 and the second rotor 9 have helical springs 1B, 1? fitted therein. (Fig. 4) always rotates in one direction, and the direction is indicated by the arrow (
a> direction. Further, the opposing shaft ends of the rotors 8 and 9 are thrust into the small chamber 3, and each of these thrust shaft ends is integrally equipped with a pressure receiving tongue piece 18 and 19 in the shape of a bead. A push button 20 is provided on the top of these pressure receiving tongue pieces 18 and 19. The relationship between the push button 20 and the pressure receiving tongues 18, 19 is as shown in FIG. The push button 20 is moved to the raised position (
The solid line posture pushed to the initial position M) is the normal state, and as the push button 20 is pressed down, the first
．． The second rotor 8.9 is forced to rotate in reverse. The first rotor 8, which controls the speaker reception function, opens the speaker reception circuit (enables reception) by this forced reverse rotation, and the second rotor 9, which controls the network function, opens the network circuit (makes it possible to receive calls). do).

The push button 20 is equipped with a heart cam mechanism that locks the pressed down state when pressed down for the first time, and releases the lock and returns to its original state when pressed down again.

This mechanism includes a heart cam groove 22 formed on the side surface of the push button 20 and a lock pin 23 whose tip enters into the lock pin 23, and its operation will be explained with reference to FIG. 6. When pushed down, lock pin 2
3 relatively rises, and first climbs the rising part 24 of the heart cam groove 22, and when the push button reaches the bottom dead center, falls into the inclined groove part 26 having a step 25 with respect to the rising groove part 24, and then presses down. Upon release, the lock pin 23 makes a complete turn and moves down the inclined groove portion 2B, and the one-step groove further engages with the substantially U-shaped valley portion 28 deepened by the step 27 to prevent the push button 20 from returning upward. Therefore, this lock position is midway between the first dead center and the bottom dead center. When pressed down again, the lock pin 23 passes upward through the trough 28 and falls into a descending groove 30 having a step 29 relative to the trough 28, and then descends through the descending groove 30 as the push is released, passing through the step 31 and returning to its original state. Of course, the respective steps 25, 27, 29, and 31 that fall into the ascending groove portion 24 are for preventing the lock pin 23 from moving forward.

The lock pin 23 is installed parallel to the rotor chamber 5 in which the second rotor 9 is housed, as shown in FIG. However, the other end, that is, the bottle head 23a, passes through the housing outer wall 2a and comes out to the outside, and the bottle head 23a that comes out is formed into a T-shape, as is clear from FIG. There is. Heart cam groove 22 on lock pin 23
A coil spring 33 is fitted around the small shaft diameter portion 23b on the tip end side of the pin.
The other end is attached to the housing outer wall C.

Note that when the opening 7 pin 23 performs the above-mentioned locking and unlocking operations, it not only moves in the forward and backward directions but also oscillates in the lateral direction. The size is large enough for the shaft diameter.

A shaft portion 3a extending through the second rotor 8 is inserted through the inside of the third rotor 10, and the tip of the shaft portion 8a is supported by the housing outer wall 2b constituting the rotor chamber 6, so that it can rotate freely. be.

The third rotor 10 has a helical spring 34 which has such strength that the rotational biasing force in the opposite direction to that of the second rotor 3 as shown by the arrow in FIG. 4 overcomes the unidirectional rotational biasing force of the second rotor. The seventh engagement protrusion 35.38 is given by
The second rotor 3 is provided as shown in the figure, so that the second rotor 3 is
The structure is such that the rotor 8O rotates in response to the reverse rotation biasing force.

An input lever 37 is integrally extended to the third rotor 10 for switching and rotating the third rotor 10 in conjunction with the raising and lowering of the handset. That is, as shown in FIG.
A rotating shaft 39 is mounted on the rotating shaft 39, and a knob 40 that is linked to raise and lower the handset, and an input lever 37 are mounted on the rotating shaft 39.
The set lever 41 that engages from below is fixed to the knob 4 when the handset is placed on the pace set 38.
0 goes down and the set lever 41 moves the λ cover 3 to the 7th position.
Push up as shown by the solid line in the diagram, and conversely, when the handset is removed from the pace set 38, the knob 40 will rise and the input lever 37 will be moved by the biasing force of the helical spring 34 built in the first rotor 8O, as shown in the line m in Figure 7. It is made to go down like this. In FIG. 3, reference numeral 42 indicates a push button for calling oscillation.

The input lever 37 is provided with a cam portion 43 that is approximately C-shaped when viewed from above, and this cam portion 43 has a tapered cam surface 4 in the shape of a sideways chevron with tapered surfaces at the top and bottom inside both open ends of the cam portion 43.
4.45 is formed so that the T-shaped head 23a of the lock pin 23 is located in the rotation locus of the tapered cam surface 44.45 when the input lever 37 is rotated. Therefore, as the input lever 37 rotates, the tapered cam surface 44.45 comes into contact with the T-shaped head 23a from above or below, and the tapered cam surface 44.45 causes the lock pin 23 to be attached to the coil spring 33. The lock pin 23 is moved back by sliding in the direction of pulling it out from the heart cam groove 22 so that the T-shaped head 23a overcomes the tapered cam surfaces 44 and 45. In addition, the lock pin 23
Pulling out causes the push button 20 to be unlocked, and in order to achieve this unlocking accurately and quickly with a slight slide of the lock pin 23, as can be seen from the explanation of FIG. It is desirable to add a lateral movement to move from the trough 28 to the descending groove 30 side. Therefore, as shown in FIGS. 7 and 8, the tapered cam surfaces 44, 45 are arranged at right angles to the lock pin 23. Instead, lock pin 2 is arranged at an angle as shown by arrow C.
Make sure to shake it sideways as it comes into contact with step 3. Furthermore, this horizontally swinging structure also makes it possible to release the lock without sliding the lock pin 23.

Next, the operation will be explained. When the handset is placed on the pace set 38 and a call is not being made, the input lever 37 that is linked to the knob 40 is raised, and the third rotor 10 is moved against the biasing force of the spiral spring 34 to rotate in the opposite direction. in a rotated position;
Therefore, there is no input of a reverse rotation urging force to the second rotor 9, and the second rotor 9 receives only one direction rotation urging force from the helical spring 17, and is set in the same posture as the first rotor 8. , pressure receiving tongues 18.1 of the first and second rotors 8, 9
9 is pushing up the push button 20 as shown in FIG. 9(A). In this state, the speaker receiving circuit is closed and the network circuit is closed.

Next, when the push button 20 is pushed down, the button is locked by the lock pin 23 and each pressure receiving tongue piece 18° 19 is pressed down as shown in FIG. 9(B), so that the 1.32nd rotor 8. 9
rotates to open the speaker receiver circuit and network circuit, allowing ring oscillation.

In this way, the network circuit is opened while the handset is placed on the pace set 38, so the above calling operation can be performed with one hand.

After confirming that contact has been made with the other party and that the audio signal is output from a speaker (not shown), and the handset is picked up, the input lever 37 and the third rotor 10 are rotated in the opposite direction by the helical spring 34. At this time, the tapered cam surfaces 44, 45 hit the head 23a of the lock pin 23 from above, causing the lock pin to slide backward, and swinging sideways to unlock the push button 20, thus releasing the button. At the same time, the first rotor 8 returns to rotation and the speaker receiving circuit closes. However, since the reverse rotation urging force of the third rotor 10 is set to be strong enough to overcome the unidirectional rotation urging force of the second rotor 8, the rotation of the third rotor 10 causes the engagement protrusion 35 to .38 have re-engaged with each other, the second rotor 9 has been re-engaged with the first rotor 8 as shown in Fig.
does not follow the rotation of the network circuit and the network circuit remains open to maintain handset communication.

After the conversation is over, change the handset to paceset 38.
By reverting to the second. Third rotating body9. The initial state shown in FIG. 9(A) is reached, in which the lO rotates as before and both the speaker receiving circuit and the network circuit are closed.

When the handset is picked up in response to a call from the other party, the state shown in FIG. 9(C) is reached and only the network circuit is opened.

(Effects) As detailed above, if the multiple switch according to the present invention is used, for example, as an on/off control switch for the speaker receiving circuit and network circuit of a telephone, the push button can be pressed from the state where the handset is placed on the pace set. Press the first button to control the switch contact on/off. By rotating both the second rotors in the on direction, both the speaker receiving circuit and the network circuit are opened, allowing ring oscillation operation even when the handset is placed on the base. In addition, when the handset is picked up after contact with the other party, the input lever that rotates in conjunction with this picking up action causes the cam portion to release the locking state of the lock pin from the push button, closes the speaker receiving circuit, and causes the input lever to rotate in conjunction with this picking up action. - The third rotor rotating in unison with the second rotor prevents the return of the second rotor and keeps the network circuit open. Therefore, the ringing oscillation can be performed with one hand operation, and only the speaker receiving circuit can be closed by picking up the handset, because the present invention achieves such functions by a mechanism.

It is inexpensive and can be easily incorporated into a pace set, so it does not require a large-scale control box like conventional ones, and it can add the above functions without being affected by the voltage and current directly used by the telephone. It's arrived.

[Brief explanation of the drawing]

The drawing shows an embodiment of the multiple switch according to the present invention,
Figure 1 is a plan view of the inside of the housing, Figure 2 is a sectional view showing the relationship between the rotor and switch contacts, Figure 3 is a mechanical diagram of the switch applied to a multiple switch telephone, and Figure 4 is a diagram of the switch. Exploded perspective view, Figure 5 is a sectional view of push copper scraps, Figures 6 (A) and (B) are explanatory diagrams of the operation of the heart cam groove and lock bin, Figure 7 is a perspective view of the third rotor section, 8 is a plan view of the same, and FIGS. 9(A), 9(B), and 9(C) are operation diagrams for explaining the functions of the switch and the switch. 8.9.10... Rotor IEi, 17.34... Spiral spring 20... Push button 22... Heart cam groove 23... Lock pin 37... Input lever 43... Cam Patent applicant: Hoshi Electric Manufacturing Co., Ltd. Agent: Takashi Suzue, patent attorney - j4 tRs diagram Figure 9

Claims (1)

[Claims] (1) A first rotor and a second rotor for on/off control, each of which is biased to rotate in one direction; a third rotor which is rotationally biased, each rotatably supported substantially in a straight line, and the second rotor and the third rotor are engaged with each other with rotational biasing forces in opposite directions; An input lever is connected to the third rotor to forcibly rotate it in reverse against the above-mentioned reverse rotation urging force, and between the first and second rotors, the first and second rotors are brought into the initial state by the respective unidirectional rotation urging forces. The input lever is provided with a lock pin that disposes the set push button, engages with the push button, and locks the pressed state of the push button against the one-way rotation biasing force, and the lock pin is attached to the input lever during its rotation. A multiple switch equipped with a cam part for unlocking operation where the cams move toward and away from each other.