JPH0588083U - Feeling vibrator - Google Patents

Abstract

(57) [Summary] [Objective] To provide a sensation vibrator 10 capable of obtaining stable vibration characteristics and high durability. [Structure] Cylindrical body 15 in which voice coil 14 is wound around the outer periphery
Is fixed to the case 11 and the magnetic poles 13 are inserted into the recesses 11b provided in the inner wall of the case 11 at a plurality of locations.
To the case 11 via. [Effect] By changing the number and hardness of the rubber elastic bodies 19 to be inserted into the concave portions 11b according to the site of the inner wall of the case 11, the supporting force of the elastic systems 19 can be adjusted according to the site. For this reason, when the case 11 is attached in a tilted manner, a larger number of the rubber elastic bodies 1 are added to the portion of the inner wall of the case 11 where the weight of the magnetic pole 13 is concentrated and compared to other portions.
The magnetic pole 13 can be supported on the case 11 in a well-balanced manner by disposing 9 or having a hardness higher than other parts.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sensation vibrator that is used by being attached to a human body placing object such as a seat or a bed, and adding a sensational vibration synchronized with a voice signal to the placing object to enable realistic voice reproduction.

[0002]

[Prior Art]

 As one type of vibrator of this type, in JP-B-58-5558, a cylindrical body around which a voice coil is wound is fixed to a case, and magnetic poles surrounding the cylindrical body are arranged concentrically with the cylindrical body. It is disclosed that a case is attached to a case via a ring-shaped leaf spring, and the case is vibrated by a magnetic interference action generated between a magnetic pole and a voice coil when a voice signal current is applied to the voice coil.

[0003]

[Problems to be solved by the device]

 In the above-mentioned conventional sensible vibrator, the weight of the magnetic pole is supported by a single annular leaf spring arranged concentrically with the cylinder, so the case is placed horizontally on a sheet or the like so that the axis of the cylinder is oriented vertically. When attached, the weight of the magnetic pole is evenly applied to each part of the leaf spring, but if the case is tilted and attached, the weight of the magnetic pole is locally concentrated on the leaf spring. For this reason, the magnetic poles are not well supported by the leaf springs, and the vibration of the case becomes unstable. Further, the metal fatigue of the leaf spring locally progresses, so that the leaf spring does not function as an elastic body in a short period of time. The present invention has been made in view of the above problems, and an object of the present invention is to provide a sensible vibrator capable of obtaining stable vibration characteristics and high durability.

[0004]

[Means for Solving the Problems]

 According to the present invention, when a voice coil is applied to a voice signal current, the voice coil is fixed to the case by attaching a voice coil around the outer periphery to the case, and magnetic poles are attached to the case via an elastic body so as to surround the same. In a sensible vibrator that vibrates a case by a magnetic interference effect generated between a magnetic pole and a voice coil, recesses are provided in a plurality of locations on the inner wall of the case, and the magnetic poles are attached to the case via rubber elastic bodies inserted in the recesses. It is characterized by

[0005]

[Action and effect]

 According to the present invention, the recesses are provided at a plurality of positions on the inner wall of the case, and the rubber elastic body is inserted into the recesses to attach the magnetic poles to the case. Therefore, the rubber elastic body to be inserted into the recess according to the inner wall portion of the case. By changing the number and hardness of the above, the supporting force of the elastic body can be adjusted according to the site. For this reason, when mounting the case at an angle, a larger number of rubber elastic bodies are installed in the parts of the inner wall of the case where the weight of the magnetic pole is concentrated and compared to other parts. By arranging the one whose hardness is higher than that of the rubber elastic body, it becomes possible to support the magnetic poles in a well-balanced manner with respect to the case, so the vibration generated when a voice signal is applied to the Boss coil is stable and durable. Sexuality improves.

[0006]

【Example】

 The present invention will be described below with reference to the drawings. FIG. 1 and FIG. 2 show a sensible vibrator 10 according to an embodiment of the present invention. The vibrator 10 includes a cylindrical case 11 having a bottom, a cover 12 for covering an upper opening of the case 11, a magnetic pole 13 built in the case 11, and a cylindrical body 15 around which a voice coil 14 is wound.

The magnetic pole 13 has a cylindrical yoke 16 having a flange portion 16 a at its lower end, an annular magnet 17 placed on the flange portion 16 a so as to surround the yoke 16 and adhesively fixed, and an adhesive fixing to the upper surface of the magnet 17. The yoke 16, the magnet 17, and the upper plate 18 are assembled concentrically with each other to form a magnetic circuit having a gap between the yoke 16 and the magnet 17. The outer diameters of the flange portion 16a and the upper plate 18 are set to be slightly smaller than the outer diameter of the magnet 17, and the annular step portions 17a and 17b are defined by the outer peripheral portion of the flange portion 16a and the upper plate 18 and the upper and lower surfaces of the magnet 17. Has been formed.

On the inner wall of the case 11, ridges 11a having a semicircular cross-sectional shape are provided at equal angular intervals in parallel with the center line, and adjacent ridges 11a form groove-shaped recesses 11b. There is. The magnetic pole 13 is attached to the inner wall of the case 11 with the flange portion 16a lifted from the bottom surface of the case 11 through a rubber tube 19 press-fitted between the groove-shaped recess 11b and the annular step portions 17a, 17b. .. As shown in FIG. 2, the rubber tubes 19 are arranged in a dense and dense manner depending on the parts.

An inner plate 20 is attached inside the cover 12, and is fixed to the upper end of the case 11 together with the cover 12 with a screw 21. The inner plate 20 has a through hole 20a formed in the center thereof. On the other hand, a ring plate 22 made of an insulating material such as rubber is adhered and fixed to the outer periphery of the upper portion of the cylindrical body 15. The cylindrical body 15 is put on the yoke 16 through the center hole 20a so that the voice coil 14 is inserted into the gap between the yoke 16 and the magnet 17, and the ring plate 20 is fixed to the inner plate 22 with the screw 23 to form the case 11 It is fixed to.

The sensible vibrator according to the present embodiment has the above-described configuration. When a voice signal current is applied to the voice coil 14, a magnetic interference action occurs between the magnetic pole 13 and the voice coil 14, which causes the magnetic pole 13 to move to the case. Displacement relative to 11 generates a sensory vibration. According to this embodiment, however, the groove-like recessed portions 11b are provided at a plurality of locations on the inner wall of the case 11, and the magnetic poles 13 are attached to the case 11 via the rubber tubes 19 inserted into the recessed portions 11b. The supporting force of the rubber tube 19 can be adjusted by changing the number and hardness of the rubber tube 19 depending on the part. Therefore, for example, when the sensible vibrator 10 is horizontally attached to the seat cushion portion 31 of the seat 30 as shown in FIG. In the case of use, the mounting angle of the case 11 is increased by arranging a larger number of rubber tubes 19 in the parts of the inner wall of the case 11 where the weight of the magnetic pole 13 is concentrated than in other parts. Regardless of this, the magnetic pole 13 can be supported on the case 11 in good balance. Therefore, the vibration generated when an audio signal is applied to the Bossie coil 14 is stabilized. Further, since the force applied to each rubber tube 19 becomes uniform, the durability of the tube 19 is improved.

Although the magnetic pole 13 is attached to the case 11 via the rubber tube 19 in this embodiment, the rubber elastic body may be a rubber ball or a rubber block. Further, in the present embodiment, the groove-shaped recess 11b is provided on the inner wall of the case 11 as the recess into which the rubber tube 19 is inserted, but when a rubber ball or a rubber block is used as the rubber elastic body, its shape, Of course, the shape and size of the recess should be changed according to the size. Furthermore, if a rubber elastic body and an annular leaf spring are used together, durability and vibration stability are further improved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a sensible vibrator according to an embodiment of the present invention.

FIG. 2 is a plan view seen from the line 2-2 of FIG.

FIG. 3 is a side view showing a sheet to which the same-feeling vibrator is attached.

[Explanation of symbols]

10 ... Sensory vibrator, 11 ... Case, 11a ...
1b ... Groove-shaped recess, 12 ... Cover, 13 ... Magnetic pole, 14 ... Voice coil, 15 ... Cylindrical body, 16 ... Yoke, 16a ... Flange section, 17 ... Magnet, 17a, 17b ... Step section, 18 ...
Upper plate, 19 ... Rubber tube, 20 ... Inner plate, 22 ... Ring plate, 30 ... Sheet, 31
… Seat cushion, 32… Seat back.

Claims (1)

[Scope of utility model registration request] 1. A cylindrical body having a voice coil wound around an outer peripheral portion is fixed to a case, magnetic poles are attached to the case via an elastic body so as to surround the cylindrical body, and a voice signal current is applied to the voice coil. At this time, in a sensible vibrator that vibrates a case by a magnetic interference action generated between a magnetic pole and a voice coil, recesses are provided at a plurality of locations on the inner wall of the case, and the magnetic poles are attached to the case via rubber elastic bodies inserted in the recesses. A vibrating sensor that is characterized.