JPH0434279B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a piezoelectric fluorescent lamp switch that lights a fluorescent lamp using high voltage generated from a piezoelectric high voltage generator.

Conventional configurations and their problems In recent years, piezoelectric fluorescent lamp switches have been well received in the market because they provide more reliable and faster lighting than conventional manual switch systems.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A conventional piezoelectric fluorescent lamp switch previously proposed by the present inventors in Japanese Patent Application No. 56-131120 will be described below with reference to the drawings.

FIG. 1 shows a side view of a conventional piezoelectric fluorescent lamp switch. In FIG. 1, reference numeral 1 denotes an operation button for a switch that opens and closes the power supply, and when pressed and released, terminals 4a and 4b are opened and closed.
Reference numeral 2 denotes an operation button for a preheating switch for a fluorescent lamp heater, which operates a built-in piezoelectric high voltage generator in conjunction with the opening and closing of terminals 5a and 5b. Further, 6 is a high voltage terminal that takes out the high voltage generated from the high voltage generator. Reference numeral 3 denotes a storage case in which each of the above-mentioned parts is stored. The operation of the piezoelectric fluorescent lamp switch configured as described above will be explained below.

First, when the operation button 2 is pressed, the terminals 5a,
5b changes from an open state to a closed state, and by connecting this between the heaters of the fluorescent lamp, a current flows through the heaters and preheating is performed. In addition, in conjunction with the pressing operation of the operation button 2, the hammer spring in the piezoelectric high voltage generator built in the case 3 is compressed, and the hammer pin hits the cam part with impact energy stored in the hammer. It will be in a locked state. Next, when the pressing force on the operating button 2 is released, the operating button 2 is returned to its original state by the return spring, but in this process, the terminals 5a and 5b shift from the closed state to the open state, and immediately after that, the operating button 2 is returned to its original state. The hammer, which was locked while storing impact energy inside the high voltage generator, is released from the cam part and applies an impact force to the piezoelectric element via the stopper. The high voltage thus generated is taken out via the high voltage terminal 6 and applied to the outer peripheral side of the fluorescent lamp, thereby making it possible to reliably light the fluorescent lamp. Further, when the operation button 1 is pressed, the terminals 4a and 4b are changed from the closed state to the open state, and the fluorescent lamp that is being lit is turned off. Then, when the pressing force is released, the operation button 1 returns to its original closed state.

However, in the above configuration, the operation buttons for turning on and turning off the light are provided separately, and the shape is large, which imposes restrictions on the design and space of the fluorescent light fixture, and also in terms of operability. It had the disadvantage of requiring different buttons to be pressed.

Purpose of the Invention In view of the above-mentioned drawbacks of the conventional technology, the present invention provides a single operating button, which enables reliable lighting and extinguishing of the light simply by repeating the pressing operation. The present invention aims to provide a piezoelectric fluorescent lamp switch with a more compact structure.

Structure of the Invention In order to achieve this object, the piezoelectric fluorescent lamp switch of the present invention includes one operation button that moves up and down when pressed, and a cam that rotates around the operation axis of the operation button. rotating cam and
a high voltage generator that is also arranged on the operating shaft of the operating button and generates a high voltage in conjunction with the operating button and the rotating cam; and a high voltage generator that comes into contact with the outer peripheral surface of the rotating cam and is interlocked with the rotation of the rotating cam. It is equipped with a preheating switch that preheats the fluorescent lamp's heater and an on/off switch that opens and closes the power supply.With this configuration, it is possible to turn on and off the light reliably by simply pressing and releasing a single operation button, and the entire This allows for a more compact configuration.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

Fig. 2 is a perspective view of a piezoelectric fluorescent lamp switch according to the present invention, Fig. 3 is a sectional view of the same piezoelectric fluorescent lamp switch, and Fig. 4 a and b are the top surfaces of rotating cams constituting the switch. FIG. 5 is a front view of the operation button and high voltage generator arranged in the piezoelectric fluorescent lamp switch. Fig. 6a is an exploded view of a sawtooth-shaped cam provided around the end surface of the operation button, and Fig. 6b is a developed view of the same sawtooth-shaped cam provided around the outer periphery of the operation button cam in the storage case. Figure c is a developed view of the outer cam part of a rotating cam which is cylindrical and has sawtooth wave shaped cam parts inside and outside, and Figure d is a developed view of the inner cam part of the rotary cam.

In FIGS. 2 to 6 above, 7 is an operation button, and a sawtooth cam portion 8 is provided around the end surface opposite to the operation surface, and an inclined surface 9 is provided inside the cam portion 8. ing. On the operation shaft of this operation button 7, there is a rotary cam 10 which is a cylinder and has sawtooth-shaped cam parts 11 and 12 on the inner and outer circumferences, and a pad 1.
3, piezoelectric element 14, receiver 15, high voltage terminal 16,
A high voltage generator 19 housing a hammer 17 and a hammer spring 18, a return spring 20 for returning the operating button 7, and a return spring 21 for returning the rotary cam 10 are arranged.

Further, on the outer peripheral surface of the rotary cam 10, there is a heater preheating side terminal 2 which contacts the rotary cam 10 so as to be interlocked with the rotation of the rotary cam 10 and preheats the heater of the fluorescent lamp.
2, 23 and power supply opening/closing side terminal 2 for opening and closing the power supply
4 and 25 are arranged respectively. A storage case 26 containing the above-mentioned parts has a sawtooth cam portion 2 that engages with the outer cam portion 12 of the rotary cam 10.
7 is provided. The inner cam 11 of the rotary cam 10 engages with the cam portion 8 of the operating button 7 when the operating button 7 is pressed, and the claws 28 provided at four locations on the inner circumferential surface of the rotating cam 10 engage with the cam portion 8 of the operating button 7. When the operating button 7 is pressed, the inclined surface 9 provided inside the end surface of the operating button 7 presses the hammer spring 18 to push down the hammer 17, and the hammer is engaged with the cam portion 29 of the high voltage generator 19. This is for removing the pin 30 by rotating the rotary cam 10.

The operation of the piezoelectric fluorescent lamp switch configured as described above will be explained below.

First, in an unoperated state, the cam portion 27 of the storage case 26 and the outer cam portion 12 of the rotary cam 10 are in an engaged state.

Here, when the operation button 7 is pressed, the cam part 8 of the operation button 7 and the inner cam part 11 of the rotary cam 10 are pressed.
are in contact with each other. At this time, the operation button 7
The cam portion 8 of the rotary cam 10 and the inner cam portion 11 of the rotary cam 10 are arranged at a fixed angle of A° apart from each other as shown in FIG. I will be joining. Further, when a pressing force is applied to the operation button 7, the rotary cam 10 is also pushed down. Here, when the rotary cam 10 is pushed down by an effective amount l ₁ of the cam portion 27 of the storage case 26 or the outer cam portion 12 of the rotary cam 10, the cam portion 27 of the storage case 26
The outer cam portion 12 of the rotating cam 10 is disengaged, and due to the rotational torque applied to the rotating cam 10, the rotating cam 10 is rotated by an angle of A°, and the inner cam portion 11 of the rotating cam 10 and the operation button 7 are rotated. The cam part 8 is in a completely engaged state.
In addition to the above-described operation by pressing the operating button 7, the pressing operation causes the inclined surface 9 provided on the inside of the end surface of the operating button 7 to move along the operating axis of the operating button 7 to a height disposed on the inner periphery of the rotary cam 10. Hammer pin 3 inserted into hammer 17 in voltage generator 19
0 and twists the hammer 17,
The hammer 1 is pressed while pressing the hammer spring 18.
7 to lower the cam part 29 of the high voltage generator 19.
The hammer pin 30 is engaged with the hammer pin 30.

Thereafter, when the pressing force on the operating button 7 is released, the operating button 7 is returned to its original state by the return spring 20. In conjunction with this, the rotating cam 10 is also pushed up by the return spring 21, and due to the constant movement, the outer cam portion 12 of the rotating cam 10 is pushed up into the storage case 22.
comes into contact with the cam portion 27 of. Here, storage case 2
There is a relationship between the cam portion 27 of 6 and the outer cam portion 12 of the rotary cam 10 such that the rotary cam 10 rotates by an angle A° when the operation button 7 is pressed. Torque will be added. However, in this state, the rotating cam 10
The inner cam portion 11 of the button 7 is engaged with the cam portion 8 of the operation button 7, and the rotary cam 10 does not rotate. When the operating button 7 is further returned, the inner cam portion 11 of the rotating cam 10 and the cam portion 8 of the operating button 7 disengage, and due to the rotational torque applied to the rotating cam 10, the state shown in FIG. angle shown
The rotating cam 10 rotates by B° (45° - A°), and the outer cam part 12 of the rotating cam 10 and the cam part 27 of the storage case 26 are shifted by 1 pitch (45°) compared to before the operation. They will engage again.

This completes one operation of the operation button 7, and in this embodiment, one pitch of each cam section is completed.
Since the angle is 45°, the rotary cam 10 rotates once by repeating the operation of the operation button 7 eight times. Then, claws 28 are provided on the inner peripheral surface of the rotating cam 10 at four locations at 90° pitches to release the hammer pins 30 that are engaged when the operation button 7 is pressed on the cam portion 29 of the high voltage generator 19. As a result, the hammer pin 30 is removed from the cam part 29 every time the operation button 7 is operated twice, and the hammer 17 applies an impact force to the piezoelectric element 14 via the stopper 13 by the hammer spring 18, which is compressed, and generates a high voltage. to occur. The generated high voltage is taken out from the high voltage terminal 16 via the receiver 15.

Further, at this time, by disposing the heater preheating side terminal 22 and the power supply opening/closing side terminal 24 in contact with the outer circumferential side of the rotating cam 10, and by providing unevenness (not shown) on the outer circumferential side of the rotating cam 10, The contact portions of the heater preheating side terminal 22 and the power supply opening/closing side terminal 24 with the outer peripheral side surface of the rotating cam 10 are connected to the rotating cam 10.
The structure is such that they can be bent by the rotation of the terminals 2 and 3 and can be brought into electrical contact with the heater preheating side terminal 23 and the power supply opening/closing side terminal 25, respectively. Therefore, due to the rotational operation of the rotating cam 10 described above, conduction and discontinuity are established between the heater preheating side terminals 22 and 23 and between the power supply opening/closing side terminals 24 and 25, and the cam portion 29 of the high voltage generator 19 is The timing for removing the matched hammer pins 30 is determined by making unevenness on the outer peripheral side of the rotating cam 10 in the order shown below.
Also, a hammer pin 3 is attached to the inner peripheral surface of the rotating cam 10.
0 from the cam part 29, the high-voltage generator 19 and the heater preheating of the fluorescent lamp and the switch for opening and closing the power supply can be linked to make it possible to more reliably light the fluorescent lamp. It is.

Sequence of Lighting Operations First, it is assumed that at this time, the hammer pin 30 is already hooked to the cam portion 29 of the high voltage generator 19 due to one operation when the light is turned off.

(1) Press operation button 7. Between heater preheating side terminals 22 and 23 and power supply opening/closing side terminals 24 and 25
During the period, the open state changes to the closed state, and the heater of the fluorescent lamp is preheated.

(2) Release the pressure on the operation button 7. Only the heater preheating side terminals 22 and 23 are closed or opened, and then the hammer pin 30 is removed from the cam part 29 by the rotation of the rotating cam 10, and the hammer 1 is removed from the cam part 29.
7 applies an impact force to the piezoelectric element 14 to generate a high voltage. This generated high voltage is applied to the outer peripheral side surface of the fluorescent lamp through the high voltage terminal 16, so that the fluorescent lamp lights up reliably.

Light-off operation procedure After turning on the fluorescent light, (1) Press operation button 7. The hammer pin 30 comes into contact with the inclined surface 9 of the inner end surface of the operation button 7 to push down the hammer 17, causing the hammer pin 30 to engage with the cam portion 29. Also,
At the same time, the power supply opening/closing side terminal 2 was in the closed state.
Between 4 and 25, it will be in an open state and the fluorescent light will be turned off.

(2) Release the pressure on the operation button 7. Between power supply opening/closing side terminals 24 and 25 and heater preheating side terminal 2
Between 2 and 23, the rotating cam 10 remains open and returns to its original state while rotating.

As described above, according to this embodiment, there is a rotary cam that rotates around the operating axis of the operating button by a combination of one operating button that moves up and down by pressing the cam part, and a rotary cam that rotates around the operating axis of the operating button. a high-voltage generating device that is disposed in and generates high voltage in conjunction with the operation button and the rotating cam, and a heater that contacts the outer peripheral surface of the rotating cam and preheats a fluorescent lamp that is coupled with the rotation of the rotating cam. By arranging the preheating switch and the on/off switch that opens and closes the power supply in the storage case, pressing one operation button,
The light can be turned on and off reliably by simply repeating the release, and the storage case can be made more compact. In the above embodiment, one pitch of each cam portion was set to 45 degrees, but it goes without saying that designs can be made at other angles (for example, 30 degrees, 60 degrees, and 90 degrees).

Effects of the Invention As described above, the present invention includes one operation button that moves up and down by pressing, a rotary cam that rotates around the operation axis of the operation button by a combination of a cam, and a rotary cam that rotates around the operation axis of the operation button. a high-voltage generating device that is disposed in and generates high voltage in conjunction with the operation button and the rotating cam, and a heater that contacts the outer peripheral surface of the rotating cam and preheats a fluorescent lamp that is coupled with the rotation of the rotating cam. By being equipped with a preheating switch and an on/off switch that opens and closes the power supply, reliable lighting is possible by repeatedly pressing a single operation button, and the overall design is compact, making it possible to improve the design of fluorescent lighting equipment. It is less subject to restrictions and has great practical effects.

[Brief explanation of drawings]

FIG. 1 is a side view of a conventional piezoelectric fluorescent lamp switch, FIG. 2 is a perspective view of a piezoelectric fluorescent lamp switch according to an embodiment of the present invention, and FIG. 3 is a sectional view of the same.
Figures 4a and b are top views and sectional views of the rotary cam that constitutes the switch, Figure 5 is a front view of the operation buttons and high voltage generator arranged inside the switch, and Figure 6 is a front view of the operating buttons and high voltage generator arranged in the switch.
Figures a to d are developed views of each cam part constituting the switch. 7... Operation button, 8... Cam part, 10... Rotating cam, 11... Inner cam part, 12... Outer cam part, 19... High voltage generator, 22, 23... Preheating switch (heater preheating side terminal), 24, 25
...Power opening/closing side terminal, 26...Storage case, 27
...Cam section.

Claims (1)

[Claims] 1. One operation button that moves up and down by pressing and has a sawtooth cam section on the other side of the operation surface, and a sawtooth cam section that engages with the cam section of this operation button at a certain angle deviation. and a rotary cam that is always biased toward the operating button by a return spring and that moves up and down in conjunction with the pressing operation of the operating button and rotates when the pressing of the operating button is released; a preheating switch that opens and closes in conjunction with the vertical movement of the cam; an open/close switch that contacts the outer peripheral surface of the rotating cam and opens and closes in conjunction with the rotation of the rotating cam; and an operating button that is disposed on the operating shaft of the operating button and that opens and closes in conjunction with the vertical movement of the cam. A hammer that is pressed down and held in a predetermined position by the pressing operation of the rotary cam and is released when the rotating cam rotates, and a piezoelectric element that generates a high voltage due to the impact force applied when the hammer is released. When operating the lighting, the operating button is pressed to move the rotary cam up and down and rotate it to make the open/close switch and preheating switch conductive, and the high voltage generator generates a high voltage. A piezoelectric fluorescent lamp switch configured so that when the light is turned off, the opening/closing switch is brought into a non-conducting state by pressing the operation button to move the rotary cam up and down and rotate it.