JPH11226500A - Vibration generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To generate a vibration which is large to some extent and to enable the vibration to be changed in various states in a moment. SOLUTION: This vibration generator is provided with a magnetic body 11, a vibrating body 12, a case 13, and a pad 14. The magnetic body 11 has a pole piece 111, a coil bobbin, and coil 117. A magnetic pole borne by an iron core part 112 and a magnetic pole borne by each yoke part 113 are different from each other and a also are changed according to a change in the polarity of voltages applied to both sides of the coil 117. The vibrating body 12 has a holding frame 121, a pair of iron plates 123, and a magnet 124 whose upper and lower parts are N, S poles respectively. The magnet 124 is rotated around an axis 122 according to a change in the magnetic poles of the iron core part 112 and each yoke part 113.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration generator for generating vibration.

[0002]

2. Description of the Related Art Conventionally, various small vibration generators have been proposed (Japanese Utility Model No. 3012930) and used in various fields such as communication devices such as pagers and portable telephones and game devices operated by controllers. ing. 3012
No. 930 discloses an iron core, a coil wound around the iron core, an elastic contact piece connected to one end of the coil, and an interrupter contacting the elastic contact piece. Also, there is disclosed a vibration generator in which an elastic contact piece is driven between an iron core and an interrupter to generate vibration.

Further, for example, a motor and an eccentric weight attached to a shaft of the motor are provided, and the motor is driven to
2. Description of the Related Art There is known a vibration generating device that generates vibration by rotating the center of gravity of an eccentric weight.

[0004]

[Problems to be solved by the invention]
The vibration generating device described in the publication No. 012930 is not suitable for a game machine which requires a small amount of vibration due to the driving of a light elastic contact piece and requires a certain level of vibration to enhance the sense of reality. In addition, with a conventional vibration generator having an eccentric weight, although a large vibration force can be obtained to some extent, when the vibration is changed, the vibration is changed by controlling the voltage level of the motor and changing the rotation speed of the motor. Therefore, the change in the vibration becomes monotonous, and it is not possible to suitably cope with a game device that is required to instantaneously change the vibration into various states according to a scene. For example, it is difficult to generate vibration of about 1 Hz or vibration of one shot.

The present invention has been made in view of the above circumstances, and has as its object to provide a vibration generator capable of generating a large amount of vibration to some extent and instantaneously changing the vibration to various states. Aim.

[0006]

SUMMARY OF THE INVENTION The present invention for solving the above-mentioned problems has an iron core and a coil provided on the outer periphery of the iron core. The polarity of both ends of the coil changes according to the frequency. A magnetic body to which a voltage is applied, and a vibrating body having a magnet, and interposing the magnet between an end of the iron core and a shaft and holding the magnet to be rotatable around the shaft. (Claim 1).

[0007] In this configuration, when a voltage of one of the positive and negative polarities is applied to both ends of the coil, the iron core takes on either one of the N pole and the S pole,
The outer peripheral side of the coil comes to have the other magnetism. On the other hand, when a voltage of the other polarity is applied to both ends of the coil, the iron core takes on the other magnetism, and the outer peripheral side of the coil takes on one magnetism. As described above, the magnetic poles carried by the iron core and the magnetic poles carried by the outer peripheral side of the coil are different from each other, and change according to the polarity change of the voltage applied to both ends of the coil. As a result, the magnet of the vibrating body rotates, and the position of the center of gravity of the vibrating body rotates, so that a large amount of vibration is generated.

Further, when the frequency of the voltage applied to both ends of the coil changes, the rotating state of the magnet changes and the vibration state changes. As a result, the vibration is instantaneously changed to various states just by changing the frequency of the voltage. Furthermore, it is possible to generate a vibration of about 1 Hz or a one-shot vibration. For example, it is suitable for a controller of a game device that is required to change the vibration to various states instantaneously according to a scene. Become.

Further, the frequency of the voltage may be variable. According to this configuration, the vibration can be instantaneously changed to various states only by changing the frequency of the voltage. Further, a case for accommodating the magnetic body and the vibrating body therein may be provided, and the vibrating body at the time of rotation may collide with an inner wall of the case. According to this configuration, when the magnet collides with the inner wall of the case, the vibration is suitably amplified, and a larger vibration is generated.

[0010] Further, a sound deadening member may be provided between the vibrating body and the inner wall against which the vibrating body collides. According to this configuration, unnecessary sound is muted or reduced, and vibration is suitably generated.

[0011]

FIG. 1 is a sectional view of a vibration generator according to a first embodiment of the present invention, and FIG. 2 is a perspective view showing a magnetic body and a vibrator of the vibration generator. The first embodiment will be described with reference to the drawings. Main vibration generator 1
Reference numeral 0, as shown in FIG. 1, comprises a magnetic body 11, a vibrating body 12, and a case 13 for accommodating them.

As shown in FIGS. 1 and 2, the magnetic body 11 includes a magnetic pole piece 111, a coil bobbin 114, and a coil 11.
7 and lead wires 118 at both ends of the coil 117.
(Only one is shown in FIG. 2 and the other is a coil bobbin 11
Hiding in 4 ), A voltage whose polarity changes according to the frequency is applied. Pole piece 111
Has a plate-shaped iron core (iron core) 112 at the center, and a plate-shaped yoke 11 wider than the iron core 112 at each of the upper and lower ends.
3 are formed in an E-shape.

The coil bobbin 114 is made of resin or the like, and has a cylindrical body 115 having a hole for inserting an iron core 112 and flanges 116 formed on each of the left and right ends of the cylindrical body 115. . The coil 117 is wound around the cylindrical body 115 between the flanges 116, and the coil bobbin 1
By inserting the iron core 112 into the hole 14, the coil 11
7 is provided on the outer periphery of the iron core 112.

Here, the operation of the magnetic body 11 when the above-mentioned voltage is applied to both ends of the coil 117 will be described.
When a voltage of one of the positive and negative polarities is applied to both ends of the coil 117, the iron core 112 becomes N-pole and S-polarized.
Each yoke portion 113 is magnetized with one of the poles.
Comes to have the other magnetism.

On the other hand, when a voltage of the other polarity is applied to both ends of the coil 117, the iron core portion 112 takes on the other magnetism, and each of the yoke portions 113 takes on one magnetism. As described above, the magnetic pole of the iron core 112 and the magnetic pole of each yoke 113 are different from each other, and change according to the polarity change of the voltage applied to both ends of the coil 117.

The vibrating body 12 includes a holding frame 121, a pair of iron plates 123, and a magnet 124, and generates vibration in accordance with a change in the magnetic pole of the iron core 112 and each yoke 113. As shown in FIG. 2, the holding frame 121 is formed in a square shape, and each of the front and rear surfaces is formed with a convex shaft portion (axis) 122 having an axis A in the front-rear direction. And a square magnet 124 whose upper and lower surfaces are sandwiched between the pair of iron plates 123 on the right surface.

The holding frame 121 holds the magnet 124 with the upper side being the N pole and the lower side being the S pole.
Numeral 23 is always magnetic with N pole, and lower iron plate 123 is always magnetic with S pole. Each shaft part 122
Are inserted into and supported by unillustrated engagement holes formed in the inner wall of the case 13, whereby the magnet 124 held by the holding frame 121 is moved to the left end of the iron core 112, as shown in FIG. And the holding frame 121 (both shaft parts 122), and can rotate around the shaft part 122.

When the vibrating body 12 rotates, the case 13
In order to collide with the inner wall of the vehicle, pads (muffling members) 14 for silencing or reducing the sound generated at the time of the collision are mounted vertically. The pad 14 is made of, for example, rubber or resin so as to mute or reduce generated sound without absorbing shock as much as possible. FIG. 3 is a diagram for explaining the operation of the present vibration generator. The operation of the first embodiment will be described with reference to FIG.

First, the clockwise rotation operation will be described. When the upper pad 14 is in contact with the upper part of the inner wall of the case 13, as shown in FIG.
Has a north pole magnetism, and the left end of each yoke portion 113 has S pole.
Assuming that the magnetic pole is magnetized, the right end of the iron plate 123 of the N pole is drawn to the left end of the upper yoke portion 113 and S
The right end of the pole iron plate 123 is drawn to the left end of the iron core 112.

Next, when the polarity of the voltage applied to both ends of the coil 117 changes, as shown in FIG. 3B, the left end of the iron core 112 takes on the S-pole magnetism and each yoke 113 Has a north pole magnetism. Thus, the right end of the N-pole iron plate 123 repels the left end of the upper yoke portion 113 and the right end of the S-pole iron plate 123 repels the left end of the iron core portion 112, while the right end of the N-pole iron plate 123 It is drawn to the left end of the iron core 112 and the S-pole iron plate 12
3 is drawn to the left end of the lower yoke portion 113, so that the magnet 124 rotates clockwise on the shaft 122 toward the position shown in FIG. 3C.

Thereafter, when the magnet 124 reaches the position shown in FIG. 3C, the right end of the N-pole iron plate 123 is
12, and the right end of the iron plate 123 of the S pole is drawn to the left end of the lower yoke portion 113. Thus, the magnet 124 rotates clockwise. Next, a counterclockwise rotation operation will be described. When the polarity of the voltage applied to both ends of the coil 117 changes following the clockwise rotation operation, as shown in FIG. 3D, the left end of the iron core 112 has N-pole magnetism, Each yoke 113
At the left end has S-pole magnetism. Thus, the right end of the N-pole iron plate 123 repels the left end of the iron core 112, the right end of the S-pole iron plate 123 repels the left end of the lower yoke 113, and the right end of the N-pole iron plate 123. Is attracted to the left end of the upper yoke portion 113 and the S pole iron plate 12
3 is drawn to the left end of the iron core 112,
The magnet 124 moves the shaft 12 toward the position shown in FIG.
2 rotates counterclockwise.

Thereafter, when the magnet 124 reaches the position shown in FIG. 3A, the right end of the N-pole iron plate 123 is drawn to the left end of the upper yoke portion 113, and the right end of the S-pole iron plate 123 is To the left end of the iron core 112. Thus, the magnet 124 rotates counterclockwise. Above, the first
According to the embodiment, the magnet 124 of the vibrating body 12 rotates and the position of the center of gravity of the vibrating body 12 rotates in accordance with the magnetic pole change of the iron core portion 112 and each of the yoke portions 113. Can be generated.

Further, when the frequency of the voltage applied to both ends of the coil 117 changes, the rotating state of the magnet 124 changes and the vibration state changes. It becomes possible to change to a state. Further, since only clockwise rotation or counterclockwise rotation is possible, it is possible to generate vibration of about 1 Hz or vibration of one shot. As a result, the vibration generator 1
0 is suitable for a controller of a game machine or the like which is required to change the vibration into various states instantaneously according to the scene.

Further, since the vibration is suitably amplified by the collision of the magnet 124 with the inner wall of the case 13, a larger vibration can be generated. In addition, pad 1
4 is used, and unnecessary sound is muted or reduced, so that vibration can be suitably generated. In order to increase the vibrating force, the magnet itself may be made heavy, or another weight may be attached to the vibrating body 12.

FIG. 4 is a sectional view of a vibration generator according to a second embodiment of the present invention, and FIG. 5 is a perspective view showing a magnetic body and a vibrator of the vibration generator. Second
An embodiment will be described. As shown in FIG. 4, the vibration generator 20 includes a magnetic body 11, a case 13, and a set of pads 14, as well as a vibration body 22 different from the vibration body 12 of the first embodiment, as in the first embodiment. have.

Therefore, the vibrating body 22 different from that of the first embodiment
The vibrating body 22 includes a holding frame 221.
And a magnet 224, which generates vibration in accordance with a change in magnetic pole of the iron core 112 and each yoke 113. As shown in FIG. 5, the holding frame 221 is formed in a square shape, and each of the front and rear surfaces has the same shaft portion 12 as in the first embodiment.
2, and a pair of holding projections 223 (only one is shown in FIG. 5 and the other is hidden by the magnet 224) for holding the magnet 224 is formed on the right surface. . Thereby, as shown in FIG. 4, the magnet 224 held by the holding frame 221 is interposed between the left end of the iron core 112 and the holding frame 221 (both the shafts 122) to rotate around the shaft 122. Moveable.

The holding frame 221 has a pair of holding projections 2.
Since the magnet 23 is held by the magnet 23 with the right side being the north pole and the left side being the south pole, the right side of the vibrating body 22 always has the magnetism of the north pole. In the second embodiment, when the polarity of the voltage applied to both ends of the coil 117 changes, the voltage waveform is adjusted so that the rotation of the magnet 224 is smooth. This will be described later.

FIG. 6 is a diagram for explaining the operation of the present vibration generator.
The operation of the first embodiment will be described with reference to FIG.
First, a clockwise rotation operation will be described. When the upper pad 14 is in contact with the upper part of the inner wall of the case 13, as shown in FIG.
Assuming that the magnetic pole is magnetized and the left end of each yoke portion 113 is magnetized with S pole, the right side of the magnet 224 is repelled from the left end of the iron core portion 112 while being attracted to the left end of the upper yoke portion 113. Can be

Next, when the polarity of the voltage applied to both ends of the coil 117 changes, as shown in FIG. 6B, the left end of the iron core 112 takes on the S-pole magnetism and each yoke 113 Has a north pole magnetism. As a result, the right side of the magnet 224 repels the left end of the upper yoke portion 113 while being attracted to the left end of the iron core portion 112, so that the magnet 224 moves toward the position shown in FIG. Rotates clockwise.

Thereafter, when the magnet 224 reaches the position shown in FIG. 6C, the polarity of the voltage applied to both ends of the coil 117 changes, and as shown in FIG. The left end of the portion 112 has N pole magnetism, and the left end of each yoke portion 113 has S pole magnetism. Thereby, while the right side of the magnet 224 repels the left end of the iron core portion 112, it is drawn to the left end of each yoke portion 113, and in addition, a clockwise inertial force acts thereon. The shaft 122 is rotated clockwise toward the position shown in e).

When the magnet 224 reaches the position shown in FIG. 6E, the right side of the magnet 224 repels the left end of the iron core 112 while being drawn to the left end of the lower yoke 113. As described above, when the magnet 224 reaches the position shown in FIG. 6C, the polarity of the voltage applied to both ends of the coil 117 is changed.
The rotation is smoothly performed from the position shown in FIG. 6A to the position shown in FIG.

Next, the counterclockwise turning operation will be described. Following the clockwise rotation, the coil 117
When the polarity of the voltage applied to both ends changes, the left end of the iron core portion 112 has S pole magnetism, and the left end of each yoke portion 113 has N pole magnetism. As a result, the right side of the magnet 224 repels the left end of the lower yoke portion 113 while being attracted to the left end of the iron core portion 112.
Rotates counterclockwise on the shaft 122 toward the position shown in FIG.

Thereafter, when the magnet 224 reaches the position shown in FIG. 6 (c), the polarity of the voltage applied to both ends of the coil 117 changes, and the left end of the iron core 112 becomes N-pole magnetized. The left end of each yoke portion 113 has S pole magnetism. Thereby, while the right side of the magnet 224 repels the left end of the iron core portion 112, it is drawn to the left end of each yoke portion 113, and in addition, a counterclockwise inertial force acts thereon. The shaft 122 rotates counterclockwise toward the position shown in FIG.

When the magnet 224 reaches the position shown in FIG. 6A, the right side of the magnet 224 repels the left end of the iron core 112 while being drawn to the left end of the upper yoke 113. As described above, the magnet 2 is rotated similarly to the clockwise rotation.
When 24 reaches the position shown in FIG.
Since the polarity of the voltage applied to both ends of the magnet 7 is changed, the magnet 224 smoothly rotates from the position shown in FIG. 6 (e) to the position shown in FIG. 6 (a). .

As described above, according to the second embodiment, it is possible to obtain a vibration generator having the same effects as in the first embodiment. In the first and second embodiments, the pair of shaft portions for rotating the magnet are formed on the holding frame. However, the present invention is not limited to this, and the pair of shaft portions may be formed on the inner wall of the case. In this case, holes or through-holes may be formed at the positions of the holding frames corresponding to the two shaft portions formed on the inner wall of the case. Alternatively, the invention is not limited thereto, and a structure may be used in which a single shaft is used as a shaft for rotating the magnet, a through hole is formed in the holding frame, and the single shaft is inserted into the through hole. In short, any structure is possible as long as the magnet can rotate around the axis A shown in FIG.

In the first and second embodiments, the pad is provided on the vibrator side, but may be provided on the inner wall of the case.

[0037]

As is apparent from the above description, according to the first aspect of the present invention, it is possible to generate a large vibration to some extent and to change the vibration to various states instantaneously. become. According to the second aspect of the invention, the vibration can be instantaneously changed to various states.

According to the third aspect of the present invention, a larger vibration can be generated. According to the invention described in claim 4, vibration can be suitably generated.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a vibration generator according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a magnetic body and a vibrating body of the present vibration generator.

FIG. 3 is an explanatory diagram of the operation of the present vibration generator.

FIG. 4 is a cross-sectional view of a vibration generator according to a second embodiment of the present invention.

FIG. 5 is a perspective view showing a magnetic body and a vibrating body of the present vibration generator.

FIG. 6 is a diagram illustrating the operation of the vibration generator.

[Explanation of symbols]

 10, 20 Vibration generator 11 Magnetic body 12 Vibrating body 13 Case 14 Pad 111 Magnetic pole piece 112 Iron core 113 Yoke 114 Coil bobbin 117 Coil 121,221 Holding frame 122 Shaft 123 Iron plate 124,224 Magnet

Claims (4)

[Claims] An iron core and a coil provided on the outer periphery of the iron core, a magnetic body to which a voltage whose polarity changes according to a frequency is applied to both ends of the coil, and a magnet, A vibrating body having a magnet interposed between an end of the iron core and a shaft and holding the magnet to be rotatable around the shaft. 2. The vibration generator according to claim 1, wherein the frequency of the voltage is variable. 3. The vibration generator according to claim 1, further comprising a case for housing the magnetic body and the vibrating body therein, wherein the vibrating body collides with an inner wall of the case during rotation. apparatus. 4. The vibration generating device according to claim 3, wherein a sound deadening member is provided between said vibrating body and said inner wall against which said vibrating body collides.