JPH06120866A - Vibration generator - Google Patents

Abstract

PURPOSE:To provide a vibration generator which can comply enough with the miniaturization of a motor and a request for the long-period use and can prevent the extreme increase of the production cost together with improvement of the assembling performance. CONSTITUTION:A vibration generator consists of a 1st yoke 5 of a magnetic material which is set into a case 4 and mounts a permanent magnet 6, a plate spring 7 is mounted on the yoke 5 and vertically pierced with the magnet 6, a cylindrical coil 13 which is mounted on a plate spring 7 and encloses the magnet 6, a 2nd yoke 8 of a magnet material which is set on the spring 7 and encloses the coil 13, a 3rd yoke 9 of a magnetic material which is set on the magnet 6, and an elastic matter 12 which is set on a coil holder 10 above the yoke 9 and touches the counter face of a case 4b set opposite to the case 4A via a gap. Then the matter 12 hits the counter face of the case 4B by the changing action of the spring 7 for the generation of the vibrations. Otherwise the vibrations are produced by the resonance with the matter 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration generating device such as a pager, and more particularly, to an improvement of a portable small vibration generating device for transmitting a signal received from a base station to a wearer without being known to others. It is about.

[0002]

2. Description of the Related Art A radio paging receiver has a function of receiving a signal transmitted from a base station based on a dial of a paging number and emitting a sound to inform a carrier who is out or away from the office of the necessity of contact. However, since it emits a large ringing tone, there is a problem in that it is known to others that it is necessary to contact them, and it becomes a hindrance during a meeting.

Therefore, in the prior art, FIG. 11 to FIG.
As shown in (1), there is proposed a vibration generator that vibrates when a signal is received from a base station, instead of emitting a sound, and informs only the wearer who is out or away from his seat of the necessity of contact.

In the conventional general vibration generator shown in FIG. 11, a substantially cylindrical housing 1 is disposed inside a case (not shown), and a built-in housing 1 such as a coreless motor (not shown) is used. An inertial body 3 made of tungsten or the like and configured to be heavy in a substantially circular shape is eccentrically fitted to the tip of the output shaft 20, and vibration is generated by utilizing the rotation of the inertial body 3 accompanying the driving of the coreless motor. It is generated secondarily.

However, with this structure of the vibration generator, it is very difficult to manufacture a coreless motor having a diameter of 8 mm or less, and a large load acts on the bearing that supports the output shaft 20. We were unable to fully meet the demands for downsizing and long-term use.

In view of the above, in FIGS. 12 and 13, the flat type thin motor 2 in which the weight balance of the rotor 25 located inside the yoke 21 is changed is used, and the drive source and the vibration source are combined. I am trying.

The yoke 21 is formed in a thin cylindrical shape whose upper and lower surfaces are closed. Inside the yoke 21, a plurality of magnets 22 and brushes 23 for supplying electric power to the rotor 25 are respectively arranged, and a central portion thereof is provided. The output shaft 20 has a plurality of bearings 24.
It is rotatably inserted through.

Further, as shown in FIG. 13, the rotor 25 has a flat and thin structure, and a flat commutator 26 is built in the central portion vertically penetrated by the output shaft 20, and the sizes thereof are different from each other. A plurality of annular coils 27, 27A and 27B are arranged.

However, even if the motor 2 is used, vibration can be generated and the motor 2 can be made thin, but the planar area is enlarged and the manufacturing becomes extremely difficult. There was a problem.

[0010]

Since the conventional vibration generator is constructed as described above, it is possible to sufficiently meet the demands for downsizing and long-term use of the motor 2 due to the winding technology and the manufacturing technology. There was a problem that it did not exist. Also, the motor 2
However, if the thickness is forcibly made thin, there is a big problem that the planar area is inevitably expanded and the manufacturing cost is greatly increased.

The present invention has been made in view of the above, and can sufficiently meet the demands for downsizing of the apparatus and long-term use,
Moreover, it is an object of the present invention to provide a vibration generator capable of preventing a large increase in manufacturing cost while improving the assemblability.

[0012]

In the first aspect of the present invention, in order to achieve the above-mentioned object, a first yoke provided inside a container for mounting a magnet, and arranged on the first yoke. A flexible elastic plate for holding the magnet, a substantially cylindrical coil disposed on the elastic plate to surround the magnet, a second yoke arranged on the elastic plate to surround the coil, and the magnet A third yoke mounted on the container, and an elastic body that is disposed on the third yoke and is connected to the coil and abuts on the facing surface of the container that faces the container via a gap. It is characterized in that an elastic body is made to collide with the facing surface of the to generate vibration.

In the second aspect of the present invention, in order to achieve the above-mentioned object, a first yoke provided inside a container for mounting a magnet, and a magnet arranged on the first yoke and holding the magnet. A flexible elastic plate, a substantially cylindrical coil arranged on the elastic plate to surround the magnet, a second yoke arranged on the elastic plate to surround the coil, and mounted on the magnet. A third yoke and an elastic body connected to the container and abutting on a coil holder on the third yoke, and vibrating the elastic body based on a displacement operation of the elastic plate to transmit the vibration to the container. There is.

In order to achieve the above-mentioned object, the third invention of the present invention provides a first yoke provided inside the container for mounting a magnet, and a magnet arranged on the first yoke and holding the magnet. A flexible elastic plate, a substantially cylindrical coil arranged on the elastic plate to surround the magnet, a second yoke arranged on the elastic plate to surround the coil, and mounted on the magnet. A third yoke whose center is displaced from the center of the coil;
A coil frame provided on the coil and in contact with the container is provided, and the coil frame collides with the facing surface of the container based on the displacement operation of the elastic plate to generate vibration.

Further, in order to achieve the above-mentioned object, the fourth invention of the present invention provides a first yoke which is provided inside the container for mounting a magnet, and which is arranged on the first yoke and holds the magnet. A flexible first elastic plate, and a substantially cylindrical coil disposed on the first elastic plate and surrounding the magnet,
A second yoke arranged on the first elastic plate and surrounding the coil, a third yoke mounted on the magnet, and a container provided on the coil via a flexible second elastic plate. And a coil frame that is in contact with the first elastic plate, and resonates the second elastic plate based on the displacement operation of the first elastic plate to generate a large vibration.

[0016]

According to the first aspect of the present invention, since vibration is generated in the entire case by using a plate strip that vibrates largely in the vertical direction due to inertia, it is difficult to perform winding work and manufacturing by omitting the motor. It is possible to omit the work, and solve the problem that the motor cannot be downsized and the request for long-term use cannot be sufficiently satisfied. Further, since the motor can be omitted, it is possible to reduce the size and cost by solving the problems that the planar area inevitably increases and the manufacturing cost increases significantly.

Further, according to the second aspect of the present invention, one end of a long strip is screwed onto the lower surface of the ceiling of the case, and the curved tip of the strip is constantly pressed against the upper surface of the coil holder to omit the elastic body. However, since the ribs are vibrated in accordance with the vibration of the plate ribs and strong and large vibrations are directly transmitted to the entire case, the vibration characteristics can be greatly improved.

According to the third aspect of the present invention, the cylindrical coil is mounted on the plate strip via the coil holder so that the central portion is displaced and displaced from the central portion of the third yoke.
On the upper peripheral edge of the cylindrical coil, a planar substantially circular lid-shaped coil frame that vertically penetrates the shaft is vertically attached, and the coil frame is brought into contact with the upper and lower surfaces of the case.
It is possible to generate vibration with a DC input like a DC motor without a special oscillation circuit for exclusive use consisting of a CR oscillator and a transistor.

Further, according to the fourth aspect of the present invention, a plane substantially annular coil holder is superposed on the upper peripheral edge of the cylindrical coil, and the coil holder is vertically penetrated through the shaft so as to be vertically movable. Since the second plate spring is fitted, the vibration characteristic can be improved.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The first invention of the present invention will be described in detail below with reference to an embodiment shown in FIGS. The vibration generator according to the first aspect of the present invention energizes the cylindrical coil 13 surrounding the permanent magnet 6 based on the reception of the signal from the base station to displace the plate spring 7 in the vertical direction to move the case 4B. The elastic body 12 is repeatedly collided with the opposite surface of the case 4 to generate vibration in the entire case 4 so that only the wearer who is out or away from the seat needs to contact.

As shown in FIGS. 1 and 2, the case 4 (container) is a part of the case on which the receiving device and the like are mounted and is made of plastic or the like. A case 4B made of plastic or the like having ribs is provided, and the case 4B is tightly fitted to the case 4A to perform the function of preventing leakage of magnetic flux, a dustproof function, and a positioning function.

Further, the vibrating body attached to the case 4A is
A bottomed cylindrical first yoke 5 forming a main magnetic path is fitted, and a cylindrical permanent magnet (magnet) having an S pole directed downward is provided in a central portion of a recessed upper surface of the first yoke 5. ) 6 is mounted, and a plate spring (elastic plate) 7 having a substantially annular planar shape longitudinally penetrated by the permanent magnet 6 is attached to the peripheral portion of the upper surface of the opening of the first yoke 5. A substantially cylindrical second yoke 8 for generating a void field is superposed on the peripheral portion of the upper surface of 7. Then, by the cylindrical yoke 8b,
An auxiliary magnetic path is formed on the outside.

The permanent magnet 6 is made of rare earth (sm-co).
And a Nd-Fe-B or the like, and a disk-shaped third yoke 9 having a diameter-increasing which generates a field is mounted on the top of the third yoke 9. A coil holder 10 having a shape is arranged so as to be vertically movable.

Similarly to the first and second yokes 5 and 8, the third yoke 9 is made of a soft magnetic material such as pure iron, and the central portion of the coil holder 10 is provided in the hole in the central portion of the upper surface thereof. A vertically extending shaft 11 is vertically inserted and attached, and the shaft 11 has a function of preventing positional displacement of the coil holder 10 in the radial direction.

In this embodiment, the shaft 11 is vertically inserted into the third yoke 9, but a long hole is deeply formed in the central portion of the permanent magnet 6, and the shaft 11 extended into the long hole. May be inserted vertically.

The coil holder 10 is made of a material such as aluminum having an insulating property and lubricity, which is subjected to an alumite treatment, and has a function of preventing a short circuit of the cylindrical coil 13 described later, and has an upper surface thereof. Is integrally mounted with an elastic body 12 that covers the protruding top of the shaft 11.

The elastic body 12 is made of butadiene rubber, neoprene or the like in a large substantially bowl shape and faces the inner lower surface of the case 4B immediately above with a gap, so that the top portion thereof collides with the inner lower surface. Has become. Further, the gap between the elastic body 12 and the inner bottom surface of the case 4B is narrower than the gap between the plate spring 7 and the first yoke 5 in order to enhance the transmission of vibration.

In this embodiment, a large bowl-shaped elastic body 12 is used to increase the inertia, but a small elastic body 12 made of rubber or plastic, such as the shape shown in FIG. 5, is used.
And the elastic body 12 is integrally molded with the coil holder at several places and used, the same effect can be expected.

On the other hand, the flexible plate strip 7 is shown in FIG.
As shown in FIG. 5, a non-magnetic spring material such as beryllium copper is formed by press working or etching, and a vertical through hole 7a is formed in the center of the material, and vibration is generated from the vertical through hole 7a to the peripheral edge. A plurality of substantially arc-shaped grooves 7b for improving the property are regularly cut out to form a three-point support structure.

On the other hand, on the inner peripheral surface of the second yoke 8, a flange portion 8a protruding in the direction of the permanent magnet 6 is provided so as to project over the entire circumference, and between the flange portion 8a and the permanent magnet 6. , Permanent magnet 6
A cylindrical coil (coil) 13 that surrounds is disposed via a gap.

The cylindrical coil 13 is formed into a cylindrical shape by winding a self-bonding wire such as a urethane wire in a cylindrical shape, and the coil spring 10A is an annular insulator that performs a short-circuit prevention function on the plate spring 7. The upper peripheral edge is bonded to the concave lower peripheral edge of the coil holder 10. Further, it has a function of bending the plate strip 7 in the downward direction of FIG.

Although the coil holder 10A is made of the same material as that of the coil holder 10, a resin or the like which can be easily adhered may be used instead.

Then, the oscillation circuit 14 of the vibration generator described above.
4, is configured to be electrically connected to a CPU 141 that outputs a timer signal (rectangular wave) 140, a resistor 142, a one-stone transistor 143, a resistor 142A, and a power source (battery) 144. It has a function of intermittently supplying a current to the cylindrical coil 13 based on the reception of a signal from the base station.

In this embodiment, the oscillator circuit 14 shown in FIG.
However, the same operation and effect can be expected even if an oscillation circuit having a circuit configuration other than this is used.

Therefore, when the vibration generator receives the signal transmitted from the base station based on the dialing of the calling number, the CPU 141 of the oscillation circuit 14 outputs the timer signal to supply the electric current to the cylindrical coil 13 to generate the magnetic force. 2 is generated and the plate spring 7 is largely bent downward in FIG. 2, the coil holder 10 and the elastic body 12 are lowered, and then the CPU 141 of the oscillation circuit 14 stops energization of the cylindrical coil 13.

Then, the plate spring 7 bent downward in FIG. 2 is urged and displaced upward, and the coil holder 10 rises while being guided by the shaft 11 to move the elastic body 12 directly above the case 4B.
When it collides with the inner lower surface of the case 4, vibration is generated over the entire case 4.

However, by repeating the series of operations described above, the plate strip 7 vibrates continuously in a large amount in the vertical direction due to inertia, and the elastic body 12 repeatedly collides with the facing surface of the case 4B. A strong and large vibration is directly generated over a period of time, and the carrier who is out or away from his seat recognizes the necessity of contact without being noticed or annoying by others.

According to the above construction, since it is not necessary to use the motor 2, it is possible to omit the winding work and the difficult work in manufacturing, and to reduce the size of the motor 2 and to use it for a long time due to the technical reasons. It is possible to solve the problem of not being able to fully meet the requirements. Further, since it is not necessary to forcibly reduce the thickness of the motor 2, it is possible to solve the problems that the planar area is inevitably expanded and the manufacturing cost is significantly increased, and the size and cost are reduced. Is possible.

Further, since the case 4 having the function of the resonance box also has the dustproof function and the positioning function, it can be expected to maintain a good state for a long time. Since the plate rib 7 that vibrates greatly in the vertical direction due to inertia is used, a large vibration can be obtained with a small driving force. Furthermore, since strong and large vibrations are directly transmitted to the entire case 4, it is possible to improve the transmission characteristics.

Next, FIG. 6 shows a vibration generator according to a second aspect of the present invention. In this case, one end of a long rib (elastic body) 15 is screwed onto the lower surface of the ceiling of the case 4B. , The curved tip of the rib 15 is constantly pressed against the upper surface of the coil holder 10 to omit the elastic body 12, and the rib 15 is vibrated along with the vibration of the plate rib 7 to directly transmit a strong and large vibration to the entire case 4. I am trying to do it. Other parts are the same as in the first aspect of the invention.

Therefore, when the vibration generator receives the signal transmitted from the base station based on the dialing of the calling number, the CPU 141 of the oscillation circuit 14 outputs a timer signal to supply a current to the cylindrical coil 13 to generate a magnetic force. 6 is generated and the plate strip 7 is largely bent downward in FIG. 6, the cylindrical coil 13 and the coil holder 10 are lowered, and then,
The CPU 141 of the oscillation circuit 14 stops energizing the cylindrical coil 13.

Then, the plate spring 7 which is bent downward in FIG. 6 is urged and displaced upward, and the coil holder 10 rises while being guided by the shaft 11 to vibrate the spring 15 and the case 4
Vibration is transmitted to the whole.

However, as the series of operations described above are repeatedly performed, the plate strip 7 vibrates continuously in a large amount in the vertical direction due to the inertia, and the strip 15 repeatedly vibrates due to the inertia. Vibration is directly generated and transmitted, and the carrier, who is away from home or away from home, recognizes the need for contact without being noticed or annoying by others.

In the present invention, it is possible to expect the same effects as those of the first aspect of the invention, and moreover, since the elastic member 12 is replaced by the flexible spring 15, the vibration characteristic is improved. It is obvious that

Next, FIGS. 7 and 8 show a vibration generator according to the third aspect of the present invention. In this case, the central portion A of the cylindrical coil 13 is the central portion B of the third yoke 9. The cylindrical coil 13 is mounted on the plate spring 7 via the coil holder 10 so that the cylindrical coil 13 is displaced in the vertical direction and is displaced from the vertical direction. The coil frame 16 having a substantially circular shape and a lid shape is superposed on the coil frame 16, and the coil frame 16 is brought into contact with the lower surface of the lid 4a of the case 4 so that the oscillation circuit 14 is omitted.

In other words, the cylindrical coil 13 is constructed so that the coil width thereof is substantially the same as the width of the third yoke 9, and the plate coil strip 10 is provided via the coil holder 10 so that the effective force generating portion is reduced. It is installed in 7. The shaft 11 is configured to extend, and the top portion is attached to the center of the lower surface of the lid 4a. For other parts, please refer to the above 1st
It is similar to the invention of.

Therefore, when the vibration generator receives the signal transmitted from the base station based on the dialing of the calling number, the cylindrical coil 13 is supplied with current and magnetic force is generated to move the plate spring 7 downward in FIG. The cylindrical coil 13 and the coil frame 16 are lowered while being largely bent, and then the energization of the cylindrical coil 13 is stopped.

Then, thereafter, the plate spring 7 bent downward in FIG. 7 is displaced upwardly, and the coil frame 16 rises while being guided by the shaft 11 and collides with the lid 4a of the case 4 immediately above. Then, vibration is generated over the entire case 4, and thereafter, these operations are repeated.

However, the plate spring 7 vibrates largely in the vertical direction due to inertia like chattering, and the case 4
Since the coil frame 16 repeatedly collides with the lid 4a of the vehicle, a strong and large vibration is directly generated over the entire case 4, and the wearer who is out or away from the seat needs to contact without being noticed or annoyed by others. Sense sex.

The above operation will be described in more detail. Since the coil width of the cylindrical coil 13 is substantially the same as the width of the third yoke 9, the plate spring 7 is displaced by an amount of δ by a DC input and is bent (see FIG. 8). ). At this time, since the effective force generating portion of the cylindrical coil 13 is reduced, the driving force of the cylindrical coil 13 is gradually weakened. However, the plate strip 7 has a large amount of displacement on the contrary, gradually increases the potential energy, and is displaced from the bent state to the original normal state.

Thus, the repetition of this operation causes vibration. Incidentally, P in FIG. 8 is an oscillation point of the plate strip 7.

In the present invention, the same operational effects as those of the first invention can be expected, and even if a special oscillation circuit 14 for exclusive use consisting of a CR oscillator and a transistor is not provided, a DC motor can be obtained. Obviously, it is possible to obtain a vibration generator that can generate vibrations with a DC input.

Next, FIG. 9 shows a vibration generator according to a fourth aspect of the present invention. In this case, the cylindrical coil 1
A coil frame 16 having a substantially ring-shaped plane that abuts the lower surface of the lid 4a of the case 4 is superposed on the peripheral edge of the upper part of the coil 3, and the upper part of the coil frame 16 and the yoke 8 vertically penetrate the shaft 11 so as to be vertically movable. The second plate spring (second elastic plate) 7A is fitted.

The second plate strip 7A is constructed in the same manner as the plate strip 7, but it may have another structure. Other parts are the same as those of the above inventions.

Therefore, when the vibration generator receives the signal transmitted from the base station based on the dialing of the calling number, the CPU 141 of the oscillation circuit 14 outputs a timer signal to supply a current to the cylindrical coil 13 to generate a magnetic force. The plate spring 7 (first elastic plate) is largely bent downward in FIG. 9 while the coil frame 16 and the second plate spring 7A are lowered, and then the CPU 141 of the oscillation circuit 14 causes the cylindrical coil 13 to rotate. Stop energizing to.

Then, the plate spring 7 which is bent downward in FIG. 9 is urged to move upward, and the coil frame 16 is lifted to move the second frame.
The plate spring 7A resonates, and the vibration is transmitted to the entire case 4. However, as the series of operations described above is repeatedly performed, the plate strip 7 vibrates constantly in the vertical direction and the second plate strip 7A resonates largely in the vertical direction due to the inertia. The strong and large vibrations are amplified and directly generated and transmitted, so that the person carrying the mobile phone while away from home or away from the seat knows the necessity of contact without being noticed or disturbed by others.

In the present invention, it is possible to expect the same effects as those of the above-described inventions, and moreover, the second plate spring 7A.
It is obvious that the vibration characteristics can be improved because the inertial force constantly resonates largely in the vertical direction.

In the above-mentioned embodiments, the plate bar 7 having a three-point support structure is used, but the plate bar 7 having a two-point support structure shown in FIG. 10 may be used. Needless to say.

[0059]

As described above, according to the first aspect of the present invention, since vibration is generated in the entire case by using the plate spring that vibrates greatly in the vertical direction due to inertia, winding work can be performed by omitting the motor. There is a remarkable effect that it is possible to surely omit difficult work in manufacturing, and to surely solve a big problem that the motor cannot be sufficiently downsized and a request for long-term use cannot be sufficiently satisfied. In addition, since the motor can be omitted, there is a remarkable effect that a large problem that a plane area is remarkably expanded and a manufacturing cost is greatly increased can be solved and the size and cost can be reduced.

Further, according to the second aspect of the present invention, one end of a long strip is screwed onto the lower surface of the ceiling of the case, and the curved tip of this strip is constantly brought into contact with the upper surface of the coil holder to form the elastic body. It is omitted, and the ribs are vibrated in accordance with the vibration of the plate ribs so that a strong and large vibration is directly transmitted to the entire case, so that the vibration characteristic can be significantly improved.

Further, according to the third aspect of the present invention, the cylindrical coil is mounted on the plate strip via the coil holder so that the central portion is displaced and displaced from the central portion of the third yoke,
On the upper peripheral edge of the cylindrical coil, a planar substantially circular lid-shaped coil frame that vertically penetrates the shaft is vertically attached, and the coil frame is brought into contact with the upper and lower surfaces of the case.
Even if there is no special special oscillation circuit including a CR oscillator and a transistor, there is a remarkable effect that vibration can be extremely easily generated by a DC input like a DC motor.

Further, according to the fourth aspect of the present invention, a planar substantially annular coil holder is superposed on the upper peripheral edge of the cylindrical coil, and a second plate strip for amplifying vibration is attached to the coil holder. Since it is fitted, there is a remarkable effect that the vibration characteristics can be greatly improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a vibration generator according to the first aspect of the present invention.

FIG. 2 is a cross-sectional explanatory view showing an embodiment of the vibration generating device according to the first invention of the present invention.

FIG. 3 is a plan view showing a plate ridge of the vibration generator according to the first aspect of the present invention.

FIG. 4 is a cross-sectional explanatory view showing an oscillation circuit of the vibration generator according to the first aspect of the present invention.

FIG. 5 is a plan explanatory view showing another example of the elastic body in the vibration generator according to the first aspect of the present invention.

FIG. 6 is a sectional explanatory view showing an embodiment of a vibration generator according to the second invention of the present invention.

FIG. 7 is a cross-sectional explanatory view showing an embodiment of a vibration generator according to the third invention of the present invention.

FIG. 8 is a graph showing the relationship between the displacement amount and the force of the plate strip in the vibration generator according to the third aspect of the present invention.

FIG. 9 is a sectional explanatory view showing an embodiment of a vibration generator according to the fourth invention of the present invention.

FIG. 10 is an explanatory plan view showing another example of the plate strip in the vibration generator according to the present invention.

FIG. 11 is a perspective view of a main part of a conventional vibration generator.

FIG. 12 is a cross-sectional explanatory view showing a motor of a conventional vibration generator.

FIG. 13 is a perspective view of a main part showing a main part of FIG. 12;

[Explanation of symbols]

4A, 4B ... Case (container), 4a ... Case lid,
5 ... 1st yoke, 6 ... Permanent magnet (magnet), 7 / 7A ... Plate spring, 8 ... 2nd yoke, 8a ... Yoke collar part, 8b ... Cylindrical yoke, 9 ... 3rd yoke, 10 / 10A ... Coil holder , 11 ... Shaft, 12 ... Elastic body, 13 ... Cylindrical coil (coil), 14 ... Oscillation circuit, 15 ... Spring (elastic body), 16
… Coil frame.

Claims (4)

[Claims] 1. A first yoke provided inside a container for mounting a magnet, a flexible elastic plate disposed on the first yoke and holding the magnet, and disposed on the elastic plate. A substantially cylindrical coil surrounding the magnet, a second yoke disposed on the elastic plate to surround the coil, and a third yoke mounted on the magnet.
A yoke and an elastic body arranged on the third yoke and connected to the coil and abutting on the facing surface of the container facing each other through a gap are provided, and the elastic body is mounted on the facing surface of the container based on the displacement operation of the elastic plate. A vibration generating device characterized in that it is caused to collide to generate vibration. 2. A first yoke provided inside a container for mounting a magnet, a flexible elastic plate arranged on the first yoke and holding the magnet, and arranged on the elastic plate. A substantially cylindrical coil surrounding the magnet, a second yoke disposed on the elastic plate to surround the coil, and a third yoke mounted on the magnet.
A vibration generation characterized by comprising a yoke and an elastic body connected to the container and in contact with a coil holder on the third yoke, and vibrating the elastic body based on the displacement operation of the elastic plate to transmit the vibration to the container. apparatus. 3. A first yoke provided inside the container for mounting a magnet, a flexible elastic plate arranged on the first yoke and holding the magnet, and arranged on the elastic plate. A substantially cylindrical coil that surrounds the magnet, a second yoke that is disposed on the elastic plate and surrounds the coil, a third yoke that is placed on the magnet and has a center portion that is offset from the center portion of the coil, A vibration generating device, comprising: a coil frame provided on a coil and abutting against a container, and causing the coil frame to collide with a facing surface of the container based on a displacement operation of an elastic plate to generate vibration. 4. A first yoke provided inside a container for mounting a magnet, a flexible first elastic plate disposed on the first yoke and holding the magnet, and a first yoke. A substantially cylindrical coil disposed on the elastic plate to surround the magnet, a second yoke disposed on the first elastic plate to surround the coil, a third yoke mounted on the magnet, and the coil A coil frame that is provided via a flexible second elastic plate and is in contact with the container, and resonates the second elastic plate based on the displacement operation of the first elastic plate to generate a large vibration. A vibration generator characterized in that.