JPH10296187A - Vibration generator and electronic equipment using the same vibration generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain clear-cut vibration because a yoke is vibrated up and down in the vertical direction to the bottom wall by interposing a spring member between a support member and the yoke to vibrate the yoke without contacting with a coil when the yoke is moved and to prevent the coil from being broken. SOLUTION: In this vibration generator S, since a spring member 5 is interposed between a support member 3 and a yoke 6 so as to vibrate the yoke 6 and the yoke 6 is vibrated up and down in the vertical direction to a bottom wall 1a of a fitting member 1, clear-cut vibration is obtained. Therefore, vibration feeling is good and the yoke 6 is not brought into contact with a coil 2 without breaking the coil 2 when it is moved.

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 suitable for use in an operating device for a game machine and the like, and to an electronic apparatus in which the vibration generating device is applied to an operating device for a game machine or a portable telephone.

[0002]

2. Description of the Related Art As shown in FIG. 5, a conventional vibration generator is provided with a bobbin 31b on a bottom wall 31a of an L-shaped mounting member 31 made of a synthetic resin, and a coil 32 formed in a cylindrical shape. It is attached to the bobbin 31b. The bottom wall 3 is provided at one end of the side wall 31c of the mounting member 31.
A leaf spring 33 is attached in parallel with 1a, and a yoke 34 made of a magnetic metal constituting a magnetic circuit with the coil 32 is attached to the leaf spring 33. The yoke 34 has a cylindrical portion 34 a surrounding the outer periphery of the coil 32, a convex portion 34 b located in the hollow portion 32 a at the center of the coil 32, and a root portion of the convex portion 34. And a magnet 35 provided at a position outside the inside of the portion 32a.

The end of the convex portion 34b of the magnetic metal yoke 34 is magnetized by the magnet 35 to have an N pole or an S pole. In such a vibration generator, when a rectangular current is applied to the coil 32 at a predetermined frequency, the yoke 34 moves up and down relatively with respect to the coil 32 due to an electromagnetic action caused by switching of the energizing direction, thereby generating vibration. I do. Then, the vertical vibration of the yoke 34 is transmitted to the mounting member 31 via the leaf spring 33. At this time, the yoke 34 is attached to the
A circular motion is performed with the portion attached to 1 as a fulcrum.

[0004] Such a vibration generating device is incorporated in a case of a game machine operating device. For example, when operating a car racing game, when a vehicle being operated collides with an obstacle, the vibration generating device generates the vibration. It is used to activate the device and transmit its vibration to the case to give the operator a sense of presence.

[0005]

In the conventional vibration generating device, a yoke 34 is attached to a leaf spring 33 and a yoke 3 is provided.
4 performs a circular motion with the mounting portion of the leaf spring 33 as a fulcrum, so that the yoke 34 comes into contact with the coil 32 and the coil 32 is damaged. If the gap between the coil 32 and the yoke 34 is increased to eliminate this contact, not only the size becomes large, but also a magnet 35 having a large magnetic flux density is required to increase the magnetic flux density between the yoke 34 and the coil 32. However, there is a problem that the cost increases. Further, the vibration due to the circular movement of the yoke 34 was a dull vibration as in Brun Brun, and the touch was poor. Further, the magnet 35
The yoke 34 is attached to the root of the convex portion 34b. The end of the convex portion 34b is magnetized by the magnet 35, and this end is opposed to the coil 32. Therefore, the magnetic efficiency is low, and thus the magnetic flux density is increased. Magnet with high magnetic flux density 3
5 is required, and there is a problem that the cost increases. Also, when such a conventional vibration generator is used for a game machine operation device, the cost is high and the vibration feel is poor.

[0006]

As a first means for solving the above-mentioned problems, a movable member forming a magnetic circuit is provided between a mounting member to which a coil formed in a cylindrical shape is mounted and the coil. A yoke, a support member disposed at an interval on the upper surface of the yoke, and a spring member interposed between the support member and the yoke. It was configured to vibrate. As a second solution, the spring member is
The configuration was made up of a coil spring having a cylindrical or truncated cone shape. As a third solution, the vibration of the yoke is transmitted to the support member via the spring member. Further, as a fourth solution means, when the yoke vibrates, the yoke collides with the mounting member,
It was configured to be separated.

A fifth solution is to form a magnetic circuit between a cylindrical coil having a hollow portion at the center thereof and the coil, and a projecting portion inserted into the hollow portion. And a magnet attached to the projecting portion of the yoke while being positioned in the hollow portion of the coil, and the yoke or the coil is vibrated by a current flowing through the coil. And Further, as a sixth solving means, the configuration according to the first, second, third, or fourth aspect is provided.
The configuration of the vibration generator described above was adopted. Further, as a seventh solution, a coil having a hollow portion at the center and formed in a cylindrical shape, and a yoke constituting a magnetic circuit between the coil and
A cylindrical portion provided on the yoke so as to surround the outer periphery of the coil, and a magnet provided at a position on the inner surface of the cylindrical portion facing the outer periphery of the coil, and a current flowing through the coil , The yoke, or the coil. According to an eighth aspect of the present invention, there is provided the vibration generating device according to the seventh aspect, wherein the vibration generating device has the configuration according to the first, second, third, or fourth aspect. Further, the ninth solution means, wherein said claim 1, or 2, or 3, or 4, or 5, or 6,
Alternatively, the electronic device is characterized in that the vibration generating device according to the seventh or eighth aspect is incorporated in an operating device for a game machine, a mobile phone, or a case such as a pager.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a vibration generating apparatus according to the present invention and an electronic apparatus using the vibration generating apparatus will be described with reference to FIGS. 1 and 2. FIG. FIG. 2 is a partially cutaway perspective view in which such a vibration generator is used in a game machine operating device, and FIG. 2 is a sectional view of a main part of the vibration generator of the present invention. Next, the configuration of the vibration generating device S will be described. As shown in FIGS. 1 and 2, the mounting member 1 made of a molded product of a non-magnetic material such as ABS resin includes a bottom wall 1a and the bottom wall 1a. A cylindrical bobbin 1c integrally formed on the upper surface of the bottom wall 1a;
c and a convex portion 1d formed in the groove c.

The coil 2 formed by winding a plurality of conductive wires has a cylindrical shape having a hollow portion 2a at the center, and the coil 2 is formed by inserting the bobbin 1c into the hollow portion 2a.
The bobbin 1c is attached to the bobbin 1c by deforming the tip of the bobbin 1c so as to spread it with, for example, a heated jig (not shown). The support member 3 made of a rigid metal or the like has one end attached to the top of the side wall 1b with a screw 4 or the like, and the support member 3 is in a state parallel to the bottom wall 1a of the attachment member 1.

One end of a cylindrical spring member 5 made of a metal wire or the like is attached to the support member 3 by an appropriate means such as an adhesive or welding. When the spring member 5 is attached, the center of the spring member 5 and the center of the bobbin 1c, that is, the center of the coil 2 are aligned. The coil 2 has a yoke 6 made of a magnetic material constituting a magnetic circuit.
The cross section has an E-shaped cup shape, and a circular plate-shaped upper portion 6a.
And a cylindrical portion 6 formed on the outer periphery of the upper portion 6a.
b, a cylindrical protrusion 6c formed at the center of the cylindrical portion 6b, an annular magnet 6d attached to the outer periphery of an end of the protrusion 6c, and a cylinder provided on the protrusion 6c. And a concave portion 6e having the shape of a circle.

The yoke 6 is attached to the other end of the spring member 5 at an upper portion 6a thereof by an appropriate means such as an adhesive, and the projection 1d of the attachment member 1 is attached to the yoke 6a.
When it is fitted and attached to the concave portion 6e, the center of the spring member 5 and the center of the yoke 6 are aligned with each other, and the spring member 5 interposed between the yoke 6 and the support member 3 and the convex The fitting of the portion 1d and the concave portion 6e allows the vertical movement with respect to the bottom wall 1a. Further, when the yoke 6 is attached, as shown in FIG.
b is put on the coil 2 so as to surround the outer periphery of the coil 2, and a part of the protrusion 6 c
And the magnet 6d is inserted into the cavity 2a of the coil 2.
In a state where the entire outer peripheral surface of the magnet 6d faces the coil 2 and the cylindrical coil 2 is disposed between the cylindrical portion 6b and the protruding portion 6c. Has become.

The vibration generator S is formed by such a configuration, and the coil 2 of the vibration generator S
When a rectangular current is applied at a predetermined frequency to the spring member 5 by the electromagnetic action caused by switching of the applied direction,
The yoke 6 supported by the above moves up and down with respect to the coil 2.
The yoke 6 moves when the yoke 6 is attached to the mounting member 1.
Moves relative to the coil 2 within a range not to hit the bottom wall 1a, that is, moves up and down in a direction perpendicular to the bottom wall 1a. Then, the vertical movement of the yoke 6 is transmitted as vibration to the support member 3 via the spring member 5.

Further, in the vibration generator S of the present invention,
The cylindrical portion 6b has the same distance between the inner peripheral surface and the protruding portion 6c over the entire circumference of the cylindrical portion 6b, and surrounds the protruding portion 6c in a ring shape. The area opposed to the protruding portion 6c is increased, the magnetic flux of the magnet 6d passing through the coil 2 can be absorbed more, and the force for moving the yoke 6 up and down is represented by the product of the magnetic flux density and the current strength. From
The yoke 6 can be moved up and down only by applying a weak current to the coil 2, so that the power consumption of the coil 2 can be reduced. Further, in the present invention, the magnet 6d is
Is located in the hollow portion 2a and faces the coil 2, so that the magnetic flux density at the position facing the coil 2 can be improved as compared with the related art, and the power consumption of the coil 2 can be further reduced. Inexpensive magnets 6d with good magnetic efficiency and low magnetic flux density can be used.

As shown in FIG. 1, such a vibration generating device S is used by being incorporated in a case 7 of an operating device G for a game machine. Then, for example, when operating a car race game, when a vehicle collides with an obstacle during the operation, the vibration generating device S is operated to transmit the vibration to the case 7, thereby giving the operator a sense of realism. To give. The vibration in the vibration generator S of the present invention is generated by the spring member 5 interposed between the support member 3 and the yoke 6.
As a result, the yoke 6 moves up and down in the vertical direction and vibrates, so that the vibration becomes sharp and the feel of the vibration is improved.

FIG. 3 shows a second embodiment of a vibration generator S according to the present invention. The vibration generator S has a structure in which the end of the cylindrical portion 6b of the yoke 6 is normally in the mounting member 1 When a rectangular current is applied to the coil 2 at a predetermined frequency in the same manner as described above, the yoke 6 is applied to the coil 2 by the same principle as described above. Vibrates by moving up and down relatively. At this time, yoke 6
Are separated from the bottom wall 1a and repeatedly collided with each other, and vibration is transmitted to the mounting member 1. Other configurations are the same as those in the above-described embodiment. The description is omitted here. Although not shown here, an elastic member (not shown) made of rubber or the like may be attached to the upper surface of the bottom wall 1a with an adhesive or the like, and the yoke 6 may be separated from and collided with the elastic member. Thus, the bottom wall 1 of the mounting member 1 made of a relatively hard material
a, or separate the yoke 6 directly from an elastic member such as rubber,
By causing the collision, a larger vibration can be given as compared with the first embodiment, and when an elastic member is used, the bottom wall 1a can be prevented from cracking.

FIG. 4 shows a third embodiment of a vibration generator S according to the present invention. The vibration generator S includes a cylindrical portion 6b of a yoke 6 provided so as to surround the outer periphery of the coil 2. On the inner surface, a magnet 6d is provided at a position facing the outer periphery of the coil 2. Since the other structure is the same as that of the first embodiment, the same members are given the same numbers here. The description is omitted. Also in this embodiment, when a rectangular current is applied to the coil 2 at a predetermined frequency similarly to the first embodiment, the yoke 6 moves up and down relative to the coil 2 according to the same principle as described above. The yoke 6 is vertically moved and transmitted to the support member 3 via the spring member 5 as vibration.

Further, as shown in FIG. 1, the vibration generating device S according to the present invention is incorporated in the case 7 of the game machine operating device G and used for the game machine operating device G. This provides a sense of realism during operation. In addition to the game machine operating device G, the vibration generating device S is provided in a mobile phone or a pager case (not shown).
In this case, the vibration of the case can be used in place of the ringing sound (bell), and the ringing without sound can be performed. Also, the vibration generator S
Can be applied to various electronic devices other than those described above.

Further, the spring member 5 in the above embodiment is used.
Has been described with a coil spring wound in a cylindrical shape,
Of course, it may be of a truncated cone shape, and of course, may be other than a coil spring. Also, by changing the magnitude or frequency of the square current flowing through the coil 2,
The magnitude, frequency, or frequency of the vibration can be freely changed, such as increasing or decreasing the frequency over time.

[0019]

According to the vibration generator of the present invention, the yoke is vibrated by interposing a spring member between the support member and the yoke, so that the yoke moves up and down in the vertical direction with respect to the bottom wall of the mounting member. Therefore, the vibration is sharp and the feel of the vibration is good. Further, the coil does not come into contact with the coil when the yoke is moved, so that the coil is not damaged.
In addition, since the spring member is formed of a cylindrical or frusto-conical coil spring, it has good followability with respect to the yoke,
A long-life vibration generator can be provided. Further, by transmitting the vibration of the yoke to the support member, the yoke can be made thinner, and a thinner vibration generator can be provided. Further, by causing the yoke to collide with or separate from the mounting member, a larger vibration can be obtained, which is suitable for a device requiring a large vibration. In addition, by arranging the magnet of the yoke in the cavity of the coil, the magnetic flux density at the position facing the coil can be improved, the power consumption of the coil can be further reduced, the magnetic efficiency of the magnet is improved, and the magnetic flux is improved. There is a feature that an inexpensive magnet with a small density can be applied. Further, by combining the configuration in which the magnet of the yoke is disposed in the hollow portion of the coil and the configuration in which the spring member is interposed between the support member and the yoke, the vibration operation is inexpensive, and the vibration operation is reliable. It is possible to provide a vibration generator having a good touch. Also,
By disposing the magnet facing the coil on the inner surface of the cylindrical portion of the yoke, the magnetic flux density at the position facing the coil can be improved, and the power consumption of the coil can be further reduced.
There is a feature that an inexpensive magnet having a good magnetic efficiency and a small magnetic flux density can be applied. Also, by combining the configuration in which the magnet facing the coil is disposed on the inner surface of the cylindrical portion of the yoke and the configuration in which the spring member is interposed between the support member and the yoke, the vibration operation can be performed at low cost. It is possible to provide a vibration generator that is reliable and has good vibration feeling. Also,
When the vibration generation device of the present invention is applied to a game machine operation device, an inexpensive electronic device with a vibrating feel and a sense of realism can be provided. Further, the vibration generating device of the present invention is a mobile phone,
When applied to a pager, a large vibration having a good vibration feeling can be used in place of a ringing sound, and an electronic device that does not disturb the surroundings can be provided.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing a vibration generator according to the present invention used in a game machine operating device.

FIG. 2 is a cross-sectional view of a main part showing one embodiment of the vibration generator of the present invention.

FIG. 3 is an essential part cross-sectional view showing a second embodiment of the vibration generator of the present invention.

FIG. 4 is an essential part cross-sectional view showing a third embodiment of the vibration generator of the present invention.

FIG. 5 is a sectional view of a main part showing a conventional vibration generator.

[Explanation of symbols]

 S Vibration generator 1 Mounting member 1a Bottom wall 1b Side wall 1c Bobbin 1d Convex part 2 Coil 2a Cavity part 3 Support member 4 Screw 5 Spring member 6 Yoke 6a Upper part 6b Cylindrical part 6c Projecting part 6d Magnet 6e Recessed G Game machine operation Equipment 7 Case

Claims (9)

[Claims] 1. A mounting member to which a coil formed in a cylindrical shape is mounted, a movable yoke forming a magnetic circuit between the coil, and a support arranged at an interval on the upper surface of the yoke. A vibration generator, comprising: a member; and a spring member interposed between the support member and the yoke, wherein the yoke is caused to vibrate by a current flowing through the coil. 2. The vibration generator according to claim 1, wherein said spring member is formed by a coil spring having a cylindrical shape or a truncated cone shape. 3. The vibration generator according to claim 1, wherein the vibration of the yoke is transmitted to the support member via the spring member. 4. The vibration generator according to claim 1, wherein the yoke collides with and separates from the mounting member when the yoke vibrates. 5. A yoke having a hollow portion at the center and formed in a cylindrical shape, a magnetic circuit formed between the coil and the coil, and a yoke having a protruding portion inserted into the hollow portion, and the coil And a magnet attached to a protruding portion of the yoke in a state where the yoke or the coil is vibrated by a current flowing through the coil. apparatus. 6. A method according to claim 1, wherein
The vibration generating apparatus according to claim 5, comprising the following configuration. 7. A coil having a hollow portion at the center and formed in a cylindrical shape, a yoke constituting a magnetic circuit between the coil, and a yoke provided to surround the outer periphery of the coil. A cylindrical portion, and a magnet provided on the inner surface of the cylindrical portion at a position facing the outer periphery of the coil, wherein the yoke or the coil is vibrated by a current flowing through the coil. A vibration generator characterized by the above-mentioned. 8. The method of claim 1, 2, 3, or 4
The vibration generating apparatus according to claim 7, comprising the following configuration. 9. The vibration generating device according to claim 1, or 2, or 3, or 4, or 5, or 6, or 7, or 8, an operation device for a game machine, a mobile phone, a pager, or the like. An electronic device characterized by being incorporated in a case.