Levitated-type orin

Abstract

To provide a levitated-type Orin capable of eliminating the attenuation of sound emitted by the Orin by levitating a bell main body through repulsive force of magnets.SOLUTION: A levitated-type Orin comprises a bell main body and a base. The bell main body includes: a bell formed in a bowl shape; a shaft portion having a predetermined length and disposed at a predetermined position of the bell; and an upper magnet portion disposed at a predetermined intermediate position of the shaft portion. The base includes: a protruding portion having a predetermined height and extending upward; and a lower magnet disposed at an upper end of the protruding portion. The upper magnet and the lower magnet face each other and have the same poles. The repulsive force between the magnets is greater than the weight of the bell main body.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a ringing bell, which is a Buddhist implement that produces sound. More specifically, it relates to a floating-type ringing bell in which the bell body is lifted.

Background Art

[0002] A ringing bell is one of the Buddhist musical instruments that produce sounds such as wooden fish and bells. The ringing bell placed on the Buddhist altar in ordinary households generally has a shape in which a bowl-shaped metal is arranged on a pedestal, and the tone color changes depending on the size, shape, thickness, and diameter of the ringing bell. In addition, since the sound emitted from the ringing bell is greatly attenuated by the vibration being transmitted to the pedestal which is the contact surface, it is also possible to reduce the attenuation rate of the sound by laying a thick cushion on the pedestal. However, the ringing bells for the compact Buddhist altars that are becoming mainstream in recent years tend to be miniaturized. In order to make the sound emitted from a small ringing bell resonate for a long time, it is necessary to strike the bell with a stronger force considering the attenuation rate. Therefore, there is a problem such that there is a risk of the ringing bell falling due to the control of the force applied.

[0003] In order to solve the above problems, a technical proposal described in Japanese Patent No. 6931925 (Patent Document 1) has been proposed. Specifically, a technique has been proposed in which the bell body is floated by the force of a magnet and has rotation control means.

[0004] However, in the technical proposal described in Patent Document 1, due to the relationship of controlling the rotation of the ringing bell, the floating device requires power, and magnetic force generating elements such as a base magnet, a floating force element, and a positioning element, and a rotation control circuit are required. Therefore, there are problems such that the floating device, which is the base part, is likely to be enlarged compared to the bell body, and furthermore, a power source or a battery must be prepared to ensure power supply.

[0005] Based on the above-mentioned o-ring, the applicant wondered if it was possible to create an o-ring that could produce a long-lasting sound even when struck with a small force. Focusing on the technology of floating objects using the repulsive force of magnets, the applicant developed an o-ring that can float the bell body from the base and suppress the attenuation of the sound emitted by the o-ring, leading to the proposal of the "levitating o-ring" according to the present invention.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] In view of the above problems, an object of the present invention is to provide a levitating o-ring capable of floating the bell body from the base and suppressing the attenuation of the sound emitted by the o-ring.

Means for Solving the Problems

[0008] To solve the above problems, the present invention provides a levitating o-ring comprising a bell body and a base. The bell body includes a bowl-shaped bell, a shaft portion having a predetermined length disposed at a predetermined location of the bell, and an upper magnet portion disposed around a predetermined intermediate location of the shaft portion. The base includes an insertion hole having a predetermined depth for inserting the shaft portion, and a lower magnet disposed around the entrance of the insertion hole. The opposing upper magnet and lower magnet have the same poles, and the repulsive force between the magnets is greater than the weight of the bell body.

[0009] In addition, the present invention relates to a floating bell consisting of a bell body and a base. The bell body includes a bell formed in a bowl shape, a shaft portion disposed at a predetermined position of the bell and having a hollow tubular shape with a predetermined length and an open tip, and an upper magnet portion disposed at a predetermined height position inside the hollow tube of the shaft portion. The base includes a protruding portion extending upward and having a predetermined height to be inserted into the hollow tube of the shaft portion, and a lower magnet disposed at the upper end of the protruding portion. The opposing upper magnet and lower magnet have the same pole, and a means is adopted such that the repulsive force between the magnets is greater than the weight of the bell body.

[0010] Furthermore, the present invention adopts a means in which the shaft portion extends from a substantially center of gravity position of the bell in a plan view.

[0011] Moreover, the present invention adopts a means in which the shaft portion is made of a non-magnetic material.

[0012] Furthermore, the present invention adopts a means in which the base is provided with a protruding portion extending upward and having a predetermined height, and the protruding portion is provided with an insertion hole.

[0013] And also, the present invention adopts a means in which the tip of the shaft portion exists in the insertion hole without contacting the bottom surface of the insertion hole.

[0014] Furthermore, the present invention adopts a means in which a concave portion is provided at the center of gravity position of the inner wall or outer wall of the bell, and the base end of the shaft portion is in point contact with the concave portion.

Advantages of the Invention

[0015] According to the floating bell of the present invention, since the opposing upper magnet and lower magnet have the same pole and the repulsive force between the magnets is greater than the weight of the bell body, the bell body always floats without contacting the base due to the repulsive force of the like-pole magnets. When the bell is struck, only the bell body vibrates, and it is possible to make the sound resonate in the surroundings while suppressing sound attenuation as much as possible.

[0016] Furthermore, according to the floating-type bell of the present invention, since it is used with the shaft portion inserted into the insertion hole, it is possible to suppress the lateral movement of the bell body when ringing within the range of the inner diameter of the insertion hole, and thus it exhibits excellent effects such as this.

[0017] Moreover, according to the floating-type bell of the present invention, since the shaft portion extends from approximately the center-of-gravity position of the bell, the shaft portion is provided at the center-of-gravity portion of the bell, making it easier to stabilize the posture of the bell body when it floats.

[0018] Furthermore, according to the floating-type bell of the present invention, since the shaft portion is a non-magnetic material, it prevents magnetization of the shaft portion that may occur due to the approach of the upper magnet and the lower magnet, and can always maintain a stable floating state, and thus it exhibits excellent effects such as this.

[0019] And also, according to the floating-type bell of the present invention, by providing a protruding portion that extends upward on the base and providing an insertion hole in the protruding portion, the shaft portion inserted into the insertion hole functions as a function to prevent the bell body from falling off the base, and a more stable floating state of the bell body can be maintained.

[0020] Furthermore, according to the floating-type bell of the present invention, by adopting a mode in which an upper magnet is provided around the shaft portion entering the insertion hole and a lower magnet is provided around the entrance of the insertion hole, it is also possible to adjust the floating height of the bell body by adjusting the circumferential position of the upper magnet on the shaft portion.

Brief Description of the Drawings

[0021]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Embodiments for Carrying Out the Invention

[0022] The floating bell 1 according to the present invention is characterized in that the bell body 2 is floated by utilizing the repulsive force between magnets. Hereinafter, embodiments of the floating bell 1 according to the present invention will be described with reference to the drawings.

[0023] Note that the floating bell 1 according to the present invention is not particularly limited to the embodiments described below, and can be appropriately changed within the scope of the technical idea of the present invention, that is, within the scope of shapes, dimensions, materials, etc. that can exhibit the same operational effects.

[0024] FIG. 1 is a schematic view showing an embodiment of the floating bell 1 according to the present invention. Specifically, it is an overall perspective view when the opening of the bell body 2 is used facing downward. FIG. 2 is a schematic view showing another embodiment of the floating bell 1 according to the present invention. Specifically, it is an overall perspective view when the opening of the bell body 2 is used facing upward. FIG. 3 is an explanatory view showing an embodiment of the bell body 2 in the floating bell 1 according to the present invention. Specifically, it is a perspective view of the bell body 2 as viewed from the inside when it is used with the opening facing downward. FIG. 4 is an explanatory view showing an embodiment of the base 3 in the floating bell 1 according to the present invention. Specifically, it is a perspective view of only the base 3 with the bell body 2 removed. FIG. 5 is a partial cross-sectional view showing a usage mode of the floating bell 1 according to the present invention. Specifically, it is a usage mode in which the opening of the bell body 2 faces downward. (a) shows a mode in which the shaft portion 5 of the bell body 2 is inserted into the insertion hole 7 of the base 3, and (b) shows a mode in which the bell body 2 floats with the shaft portion 5 inserted. FIG. 6 is a partial cross-sectional view showing a usage mode of the floating bell 1 according to the present invention. Specifically, it shows a usage mode in which the opening of the bell body 2 faces upward. FIG. 7 is an enlarged view showing the floating mode of the floating bell 1 according to the present invention, and is an enlarged view of the portion A surrounded by FIG. 5(b). FIG. 8 is an explanatory view showing another usage mode of the floating bell 1 according to the present invention. (a) is a partial cross-sectional view showing a mode in which the protruding portion 10 is inserted into the shaft portion 5 of the bell body 2, and (b) is an enlarged view of the portion B surrounded by (a). FIG. 9 is an explanatory view showing another embodiment of the bell body in the floating bell 1 according to the present invention. (a) is a perspective view of the bell body 2 as viewed from the inside when the shaft portion 5 is separated from the bell body 2 for use, and (b) is a perspective view of the shaft portion 5 when the shaft portion 5 is separated from the bell body 2 for use. FIG. 10 is a partial cross-sectional view showing a usage form of the floating bell 1 according to the present invention. (a) shows a mode in which the shaft portion 5 is inserted into the insertion hole 7 of the base 3, and (b) shows a mode in which the bell body 2 floats with the shaft base end 5b and the concave portion 12 of the bell body 2 in point contact while the shaft portion 5 is being inserted. FIG. 11 is a partial cross-sectional view showing another usage mode of the floating bell 1 according to the present invention, showing a mode in which the protruding portion 10 is inserted into the shaft portion 5, the shaft base end 5b and the concave portion 12 of the bell body 2 are in point contact, and the bell body 2 is floating. FIG. 12 is an enlarged view showing another embodiment of the floating bell 1 according to the present invention, and both (a) and (b) show the forming mode of the concave portion 12 in the bell 4.

[0025] The floating bell 1 according to the present invention mainly comprises a bell body 2 and a base 3. Although not shown in the drawings, a bell striking bar for striking the bell is naturally provided on the floating bell 1.

[0026] The bell body 2 is composed of a bell 4, a shaft portion 5, and an upper magnet 6. The bell 4 has a bowl-shaped configuration with an opening, and the shaft portion 5 and the upper magnet 6 are provided on the bell 4.

[0027] The bell 4 vibrates when contacted by the bell striking bar and emits sound to the surroundings. The bell 4 is formed in a bowl shape and has a shaft portion 5 provided at a predetermined location. When the bell body 2 is arranged on the base 3, as shown in FIGS. 1 and 5, in addition to the mode of being arranged to cover the base 3 with the opening facing downward, as shown in FIGS. 2 and 6, a mode of being arranged to place it on the base 3 with the opening facing upward can be considered. As the material constituting the bell 4, conventionally known materials may be used and are not particularly limited, but titanium, titanium alloys, etc. that are excellent in strength, weight, and corrosion resistance are suitable. Also, the size of the bell 4 is not particularly limited and is appropriately formed and selected according to the installation location and usage mode.

[0028] The shaft portion 5 is a rod-shaped body disposed at a predetermined location on the inner wall or outer wall of the bell 4. The shaft portion 5 functions as a positioning shaft when the bell body 2 is disposed on the base 3 and is provided in a state of extending substantially vertically from a predetermined location on the inner wall or outer wall of the bell 4. Although there is no limitation on the material of the shaft portion 5, as shown in FIG. 3, depending on the mode, the upper magnet 6 may be provided adjacent in some cases. Therefore, a mode of using a non-magnetic material such as stainless steel, titanium, or aluminum that is less likely to be magnetized as the material is desirable. Regarding the installation location of the shaft portion 5, it is preferably provided at a predetermined location on the inner wall or the outer wall of the bell 4, for example, extending substantially vertically from the approximate center of gravity position of the bell 4 in plan view. By adopting such a mode, the center of gravity of the bell main body 2 that swings after ringing is likely to be stabilized. There is no particular limitation on the length of the shaft portion 5, but when the bell main body 2 is in a floating state, it is adjusted so that at least the tip of the shaft portion 5 does not contact the bottom surface of the insertion hole 7. If the shaft portion 5 is too short, there is a risk that the shaft portion 5 will come out of the insertion hole 7 when the bell is struck strongly, and the bell main body 2 will fall off the base 3. Conversely, if the shaft portion 5 is too long, although the stability of the bell main body 2 with respect to the base 3 increases, when the shaft portion 5 swings due to ringing, the tip of the shaft portion 5 may contact the inner wall surface of the insertion hole 7, damping the vibration of the bell main body 2 and causing attenuation of the sound. Therefore, the best length is appropriately determined while considering these events. Furthermore, there is no particular limitation on the method of disposing the shaft portion 5 with respect to the bell 4. In addition to the mode of abutting the base end of the shaft portion 5 against the inner wall or the outer wall of the bell 4 and connecting it by welding, adhesion, etc., a through hole may be provided in the bell 4 and the shaft portion 5 may be passed through the hole, and the shaft portion 5 may be fixed using a screwing member such as a nut on the outer wall side and the inner wall side of the bell 4.

[0029] As a disposing mode of the shaft portion 5 and the bell 4, as shown in FIG. 9(b), a mode in which the shaft portion 5 is separated as an independent rod-shaped body and the shaft base end 5b is brought into point contact with the inner wall or the outer wall of the bell 4 is also preferable. At this time, by providing the concave portion 12 at the center of gravity position of the inner wall (FIG. 9(a)) or the outer wall (not shown) of the bell 4, while bringing the shaft base end 5b into point contact with the position (fulcrum P) where the balance of the bell 4 is taken, the movement of the shaft portion 5 is suppressed. By adopting such a mode, it becomes possible to greatly swing the bell 4 when ringing with the bell striker, and it also becomes possible to bring about a change in the sound by the swing of the bell 4 that is the sound source. Regarding the shapes of the concave portion 12 and the shaft base end 5b, they are shapes for acting as the fulcrum P, for example, shapes such as a conical shape or a circular shape as shown in the figure, which are easy to maintain point contact. At this time, the opening angle of the concave portion 12 is formed wider than the base end angle of the shaft base end 5b. Currently, in the drawings, only the embodiment with the recess 12 provided on the inner wall of the bell 4 is illustrated, but an embodiment with the recess 12 provided on the outer wall of the bell 4 may also be possible. As long as the contact point between the shaft base end 5b and the recess 12 is accurately positioned at the center of gravity of the bell 4, the overall balance can be maintained even when the opening of the bell 4 faces upward. Regarding the forming mode of the recess 12, as shown in Fig. 12(a), in addition to the mode in which the recess 12 is formed within the thickness range of the bell 4, as shown in Fig. 12(b), it is also possible to form the recess 12 so as to protrude toward the opposite wall side. Specifically, when the recess 12 is provided on the inner wall, it is formed to protrude toward the outer wall side, and when the recess 12 is provided on the outer wall, it is formed to protrude toward the inner wall side. By adopting such a mode, the recess 12 can be formed deeper than the thickness of the bell 4, and the shaft base end 5b can enter deeper into the recess 12, contributing to the improvement of stability and balance.

[0030] The upper magnet 6 is a magnet body for floating the bell body 2 and is provided around a predetermined intermediate portion of the shaft portion 5. The upper magnet 6 makes the facing surface with the lower magnet 8 provided on the base 3 the same pole as the lower magnet 8, and floats the bell body 2 from the base 3 by the repulsive force generated. Thus, a magnet body having a magnetic force sufficient to float the bell body 2 is provided. At this time, in addition to the mode of adopting a single magnet body having a strong magnetic force as the upper magnet 6, it is also possible to stack a plurality of magnet bodies having a relatively weak magnetic force and use the aggregate to strengthen the magnetic force to form the upper magnet 6. There is no limitation on the type of magnet used as the upper magnet 6, but a neodymium magnet with particularly high coercivity is preferably suitable. Regarding the installation position of the upper magnet 6, it is not particularly limited other than being provided around a predetermined intermediate portion of the shaft portion 5, and is appropriately determined in consideration of the shape of the base 3, the depth of the insertion hole 7, the length of the shaft portion 5, etc. At this time, when there is a gap between the bell 4 and the upper magnet 6 in the shaft portion 5, a mode of providing a spacer 9 around the gap as shown in Fig. 5 is also preferable, which can stabilize the position of the upper magnet 6 and prevent upward displacement.

[0031] The base 3 is a pedestal that has an insertion hole 7 and a lower magnet 8 and floats the bell body 2. Although the material and size of the base 3 are not particularly limited, since a pressure equal to the weight of the bell body 2 is applied vertically as the repulsive force between the upper magnet 6 and the lower magnet 8, it is preferable to have a weight that can withstand such pressure, the bottom surface friction of the base 3, the bottom surface adsorption force, etc. By adopting such a mode, even when the bell body 2 swings greatly and the direction of the pressure applied to the base 3 changes suddenly, it is possible to maintain the state where the bottom surface is fixed without the base 3 floating.

[0032] The insertion hole 7 is a hole provided in the base 3 into which the shaft portion 5 is inserted. The insertion hole 7 is a hole provided on the top surface of the base 3, regardless of whether it penetrates or not. When the tip portion of the shaft portion 5 extending downward from the bell body 2 is inserted into the insertion hole 7, even if a lateral force is applied to the bell body 2 by a strong impact such as ringing the bell, the positional deviation between the bell body 2 and the base 3 can be prevented. Regarding the diameter of the insertion hole 7, although it is not particularly limited, it is formed to be at least larger in diameter than the diameter of the shaft portion 5. Although it is also related to the insertion length of the shaft portion 5, the narrower the diameter of the insertion hole 7, the smaller the horizontal movement distance of the inserted shaft portion 5 and the bell body 2, and the larger the diameter of the insertion hole 7, the larger the horizontal movement distance of the inserted shaft portion 5 and the bell body 2. Also, regarding the depth of the insertion hole 7, it is not limited in the same way as the diameter as long as it does not exceed the thickness of the base 3.

[0033] The lower magnet 8 is, like the upper magnet 6, a magnet body for floating the bell body 2, and is provided on the top surface side of the base 3 and is peripherally provided at the entrance of the insertion hole 7. The lower magnet 8 makes the facing surface with the upper magnet 6 provided on the bell body 2 the same pole as the upper magnet 6, and floats the bell body 2 from the base 3 by the repulsive force generated. Thus, a magnet body having a magnetic force sufficient to float the bell body 2 is provided. At this time, in addition to the mode of adopting a single magnet body having a strong magnetic force for the lower magnet 8, it is also possible to stack and arrange a plurality of magnet bodies having less magnetic force, and strengthen the magnetic force by the aggregate to form the lower magnet 8. There is no limitation on the type of magnet used as the lower magnet 8, but a neodymium magnet having a particularly high coercive force is suitable. Further, the installation position of the lower magnet 8 is not particularly limited other than being provided around the entrance of the insertion hole 7.

[0034] As shown in FIG. 5, it is also preferable that the base 3 is provided with a protruding portion 10 extending upward from the top surface of the base 3, and the insertion hole 7 is provided at the tip of the protruding portion 10. By adopting such a mode, it is possible to form the insertion hole 7 deeper by the length of the protruding portion 10 and insert the shaft portion 5 longer. The arrangement position of the protruding portion 10 on the base 3 is not particularly limited, but it is preferably arranged at a substantially centroid position in the plan view of the base 3 so that the pressure accompanying the repulsive force of the magnet is evenly applied to the entire base 3. For example, when the base 3 is circular in plan view, the protruding portion 10 is installed at the central portion of the circle corresponding to the centroid point. At this time, the lower magnet 8 is arranged around the insertion hole 7 provided at the tip of the protruding portion 10.

[0035] Regarding the form of the bell 4, as shown in FIG. 3, it is also preferable to form one or a plurality of annular grooves 11 on the inner wall. By adopting such a mode, the sound wave generated by ringing the bell is diffusely reflected by the annular groove 11, and it is possible to create the spread of sound by the diffusion of the reverberant sound, and to obtain a clear sound with less sound interference.

[0036] Examples of the floating-type bell 1 according to the present invention will be described below. In addition, this embodiment will be described based on the mode shown in FIG. 1, which is arranged so as to cover the base 3 with the opening facing downward. As shown in the figure, a shaft portion 5 is provided at the center of gravity position on the inner wall of the bell 4, and an upper magnet 6 is provided around a predetermined portion of the shaft portion 5 such that the S pole is on the base end side (upper side) and the N pole is on the tip end side (lower side). Further, a protruding portion 10 is provided at the center of gravity position on the top surface side of the base 3, and an insertion hole 7 having a predetermined depth is drilled from the tip (upper end) of the protruding portion 10 toward the base, and a lower magnet 8 is disposed around the entrance of the insertion hole 7 such that the S pole is on the base end side (lower side) and the N pole is on the tip end side (upper side).

[0037] With the opening facing downward so as to cover the bell body 2 with the base 3, the tip of the shaft portion 5 is inserted into the insertion hole 7 (Fig. 5(a)). The bell body 2 moves downward as the shaft portion 5 enters. Then, as the upper magnet 6 disposed on the shaft portion 5 approaches the lower magnet 8, a repulsive force due to like poles (N pole - N pole) is generated (Fig. 7), and the bell body 2 floats without the upper magnet 6 and the lower magnet 8 coming into contact (Fig. 5(b)).

[0038] Next, the operation when the floating type bell 1 is struck will be described. By striking the outer wall of the bell body 2 with a bell striker, vibration (sound wave) is generated and diffused throughout the bell body 2. At this time, since the bell body 2 is floating due to the repulsive force of the magnets, the transmission of vibration to the base 3 is only through the air, and no attenuation occurs in the vibration itself emitted from the bell body 2. Therefore, a clear sound is produced and resonates in the surroundings for a long time. Also, when the bell is struck strongly with the bell striker, the bell body 2 may tilt or move in the direction of being struck. However, the bell body 2 does not tilt or move greatly in the lateral direction beyond the gap between the shaft portion 5 and the insertion hole 7, and the repulsive force by the collision between the shaft portion 5 and the inner wall of the insertion hole 7 and the upper magnet 6 and the lower magnet 8 acts, and the kinetic energy is gradually dispersed, so that the movement of the bell body 2 becomes small, and then the bell body 2 remains floating and comes to rest.

[0039] A second embodiment of the floating type bell 1 according to the present invention will be described with reference to Fig. 8. In this embodiment, as shown in Fig. 8(a), a hollow tubular shaft portion 5 with an open shaft tip 5a is disposed at a predetermined position of the bell 4, and a protruding portion 10 extending upward from the top surface portion of the base 3 is inserted into the hollow tube of the shaft portion 5. In adopting such a mode, the arrangement position and length of the shaft portion 5 are not particularly limited as described above. Also, the length of the protruding portion 10 is not particularly limited, but at least it has a length such that when its tip is inserted into the hollow tube of the shaft portion 5, the bell 4 can float without contacting the base 3. An upper magnet 6 is disposed at a predetermined height position in the hollow cylinder of the shaft portion 5. Also, a lower magnet 8 is disposed at the tip of the protruding portion 10. Note that the arrangement position of the upper magnet 6 in the hollow cylinder is appropriately determined in consideration of the length of the shaft portion 5, the length of the protruding portion 10, and the required floating distance between the base 3 and the bell 4, etc.

[0040] Examples of the floating type bell 1 according to the second embodiment will be described below. Note that this example will be described based on the mode shown in Fig. 8(a) where the opening is downward and is placed on the base 3. As shown in the figure, the bell 4 is provided with a hollow tubular shaft portion 5 at the inner wall gravity center position, and an upper magnet 6 is disposed at a predetermined position in the hollow tube of the shaft portion 5 such that the S pole is on the base end side (upper side) and the N pole is on the tip side (lower side). Also, a protruding portion 10 is provided at the gravity center position on the top surface side of the base 3, and a lower magnet 8 is disposed at the tip (upper end) of the protruding portion 10 such that the S pole is on the base end side (lower side) and the N pole is on the tip side (upper side).

[0041] While covering the bell body 2 over the base 3 with the opening downward, the shaft tip 5a opened at the tip of the protruding portion 10 is made to enter so as to cover it (Fig. 8(a)). The bell body 2 moves downward as the shaft portion 5 enters. Then, as the upper magnet 6 disposed on the shaft portion 5 approaches the lower magnet 8, a repulsive force due to like poles (N pole - N pole) is generated, and the bell body 2 floats without the upper magnet 6 and the lower magnet 8 contacting each other (Fig. 8(b)).

[0042] Next, the operation when the floating bell 1 according to the second embodiment is struck will be described. By striking the outer wall of the bell body 2 with a bell striker, vibration (sound wave) is generated and diffuses throughout the bell body 2. At this time, since the bell body 2 is floating due to the repulsive force of the magnet, the transmission of vibration to the base 3 occurs only through the air, and no attenuation occurs in the vibration itself emitted from the bell body 2. Therefore, it will produce a clear sound and resonate in the surroundings for a long time. Also, when the bell is struck strongly with the bell striker, the bell body 2 may tilt or move in the direction of being struck. However, the bell body 2 will not tilt or move significantly in the lateral direction beyond the gap between the hollow tube in the shaft portion 5 and the protruding portion 10. The collision between the protruding portion 10 and the inner wall of the hollow tube of the shaft portion 5, and the repulsive force between the upper magnet 6 and the lower magnet 8 act, and the kinetic energy is gradually dispersed, so that the movement of the bell body 2 becomes smaller. After that, the bell body 2 will come to rest while maintaining its floating state.

[0043] An example of the floating bell 1 according to the third embodiment will be described with reference to FIG. 10. In this example, as shown in FIG. 10, an example will be described in which the opening of the bell 4 is downward and it is arranged to cover the base 3 via the shaft portion 5. As shown in the figure, a recess 12 is provided at the center of gravity position on the inner wall of the bell 4. Also, the shaft portion 5 is provided such that the recess 12 and the shaft base end 5b are in point contact, and an upper magnet 6 is provided around a predetermined portion of the shaft portion 5 such that the base end side (upper side) is the S pole and the tip side (lower side) is the N pole. And a protruding portion 10 is provided at the center of gravity position on the top surface side of the base 3, and an insertion hole 7 with a predetermined depth is drilled from the tip (upper end) of the protruding portion 10 toward the base. Also, a lower magnet 8 is disposed around the entrance of the insertion hole 7 such that the base end side (lower side) is the S pole and the tip side (upper side) is the N pole.

[0044] With the opening facing downwards so as to cover the bell 4 over the base 3, the base end 5b of the shaft is brought into point contact with the concave portion 12 to form a bell main body 2 having the bell 4 and the shaft portion 5. At this time, since the center of gravity of the bell 4 is below the contact point (fulcrum P) between the concave portion 12, which is the center of gravity position of the inner wall of the bell 4, and the tip end 5a of the shaft, even when the bell 4 tilts about the fulcrum P, the "grasshopper principle" in which a restoring force is automatically generated by gravity comes into play. Then, by inserting the tip end 5a of the shaft into the insertion hole 7, the bell main body 2 moves downward as the shaft portion 5 enters. Then, as the upper magnet 6 disposed on the shaft portion 5 approaches the lower magnet 8, a repulsive force due to like poles (N pole - N pole) is generated, and the bell main body 2 floats without the upper magnet 6 and the lower magnet 8 coming into contact ((Fig. 10(b)).

[0045] Next, the operation when ringing the floating bell 1 according to the third embodiment will be described. By hitting the outer wall of the bell main body 2 with a bell striker, vibration (sound wave) is generated and diffused throughout the bell main body 2. At this time, since the bell main body 2 is floating due to the repulsive force of the magnets, the transmission of vibration to the base 3 is only through the air, and no attenuation occurs in the vibration itself emitted from the bell main body 2. Therefore, it becomes a clear sound and resonates in the surroundings for a long time. Further, the bell 4 oscillates about the fulcrum P due to the ringing. In the case of the conical concave portion 12 as shown in the figure, it will oscillate within the range of the opening angle of the concave portion 12. Note that since the shaft portion 5 in the bell main body 2 is not fixedly connected to the bell 4, it does not move significantly with the oscillation of the bell 4.

[0046] When the outer wall of the bell body 2 is strongly struck with a bell striker, the bell 4 will swing greatly in the direction of the strike. Also, since the shaft tip 5a of the shaft portion 5 is not fixed, the shaft portion 5 will move along with the movement of the center of gravity due to the swing of the bell 4. At this time, the shaft portion 5 will not tilt more than the gap between the shaft portion 5 and the insertion hole 7 or move greatly in the lateral direction, and the collision between the shaft portion 5 and the inner wall of the insertion hole 7 and the repulsive force between the upper magnet 6 and the lower magnet 8 will act, and the kinetic energy will be gradually dispersed, so that the movement of the shaft portion 5 will become smaller. And as the movement of the shaft portion 5 becomes smaller, the bell 4 will also swing less due to the dispersion of kinetic energy and the like. After that, the bell body 2 will come to rest while maintaining its floating state.

[0047] The floating bell 1 according to the fourth embodiment will be described with reference to FIG. 11. In this embodiment, as shown in the figure, a hollow tubular shaft portion 5 with an open shaft tip 5a is provided, and a protruding portion 10 extending upward from the top surface of the base 3 is inserted into the hollow tube of the shaft portion 5. In adopting such a mode, the shaft portion 5 is provided such that the shaft base end 5b makes point contact with the concave portion 12 and the protruding portion 10 can be inserted into the hollow space. The length of the shaft portion 5 is not particularly limited as described above. Also, the length of the protruding portion 10 is not particularly limited, but at least it has a length such that when its tip is inserted into the hollow tube of the shaft portion 5, the bell 4 can float without contacting the base 3. An upper magnet 6 is disposed at a predetermined height position within the hollow cylinder of the shaft portion 5. Also, a lower magnet 8 is disposed at the tip of the protruding portion 10. Note that the disposition position of the upper magnet 6 within the hollow cylinder will be appropriately determined in consideration of the length of the shaft portion 5, the length of the protruding portion 10, and the required floating distance between the base 3 and the bell 4.

[0048] Examples of the floating bell 1 according to the fourth embodiment will be described below. Note that this example will be described based on the mode of being disposed so as to cover the base 3 with the opening facing downward as shown in FIG. 11. As shown in the figure, a hollow tubular shaft portion 5 is provided at a position where the concave portion 12 provided at the center of gravity position on the inner wall of the bell 4 and the shaft tip 5a are in point contact. An upper magnet 6 is disposed at a predetermined position within the hollow tube of the shaft portion 5 such that the base end side (upper side) is the S pole and the tip end side (lower side) is the N pole. Further, a protruding portion 10 is provided at the center of gravity position on the top surface side of the base 3, and a lower magnet 8 is disposed at the tip (upper end) of the protruding portion 10 such that the base end side (lower side) is the S pole and the tip end side (upper side) is the N pole.

[0049] With the opening facing downward so as to cover the bell body 2 with the base 3, the shaft portion 5 is provided at the position where the concave portion 12 and the shaft tip 5a are in point contact, thereby forming a single bell body 2, and the shaft tip 5a opened at the tip of the protruding portion 10 is inserted so as to cover it. The bell body 2 moves downward as the shaft portion 5 enters. Then, as the upper magnet 6 disposed on the shaft portion 5 approaches the lower magnet 8, a repulsive force due to like poles (N pole - N pole) is generated, and the bell body 2 floats without the upper magnet 6 and the lower magnet 8 coming into contact.

[0050] Next, the operation when the floating bell 1 according to the fourth embodiment is rung will be described. By hitting the outer wall of the bell body 2 with a bell striker, vibration (sound wave) is generated and diffused throughout the bell body 2. At this time, since the bell body 2 is floating due to the repulsive force of the magnet, the transmission of vibration to the base 3 is only through the air, and no attenuation occurs in the vibration itself emitted from the bell body 2. Therefore, it becomes a clear sound and resonates in the surroundings for a long time. Further, the bell 4 generates a swing around the fulcrum P when rung. In the case of the conical concave portion 12 as shown in the figure, it will swing within the range of the opening angle of the concave portion 12. Note that since the shaft portion 5 in the bell body 2 is not fixedly connected to the bell 4, it does not move significantly with the swing of the bell 4.

[0051] When the outer wall of the bell body 2 is strongly struck with a bell striker, the bell 4 will swing greatly in the struck direction and so on. Also, since the shaft tip 5a of the shaft portion 5 is not fixed, the shaft portion 5 will move along with the movement of the center of gravity due to the swing of the bell 4. At this time, the shaft portion 5 will not tilt beyond the gap between the shaft portion 5 and the insertion hole 7 or move greatly in the lateral direction, and the collision between the shaft portion 5 and the inner wall of the insertion hole 7, and the repulsive force by the upper magnet 6 and the lower magnet 8 will act, and gradually the kinetic energy will be dispersed, so that the movement of the shaft portion 5 will become smaller. And as the movement of the shaft portion 5 becomes smaller, the bell 4 will also have a smaller swing due to the dispersion of kinetic energy and so on. After that, the bell body 2 will come to rest while maintaining its floating state.

[0052] As described above, the basic configuration aspects, the second, third, and fourth embodiments, and the operations of the floating bell 1 according to the present invention have been described. However, the present invention is not limited to the configurations shown in the above embodiments and drawings. For example, a mode in which the bell body 2 is floated with the opening portion horizontal and the direction of the sound generated by striking the bell can be adjusted by changing the direction of the opening portion is also conceivable. In such a mode, the shaft portion 5 is provided on the outer wall and is provided so as to extend substantially vertically from the substantially center-of-gravity position of the bell 4 in plan view, and it becomes possible to ensure the stability of the bell body 2 during floating. Also, as another configuration aspect, a plurality of protrusions 10 provided on the base 3 are arranged at a plurality of positions centered on the center-of-gravity point of the base 3, and a plurality of shaft portions 5 corresponding to the respective protrusions 10 are provided on the inner wall of the bell 4, so that a mode of increasing the stability of the bell body 2 is conceivable.

[0053] As described above, according to the floating bell 1 according to the present invention, the upper magnet 6 provided on the bell body 2 and the lower magnet 8 provided on the base 3 are opposed with the same poles, and the bell body 2 is floated using the repulsive force generated thereby, and regarding the vibration generated when striking the bell, it is possible to prevent attenuation due to contact with the base 3 and so on, and an excellent effect such as being able to suppress the attenuation of the sound generated from the floating bell 1 can be achieved.

Industrial Applicability

[0054] The present invention can be adopted not only for all kinds of orins installed on Buddhist altars and Buddhist utensils in each household etc., but also can be used as various doorbells, such as doorbells at the entrance, tables in restaurants, and fronts of accommodation facilities. Therefore, it is considered that the industrial applicability of the "floating orin" according to the present invention is great.

Explanation of reference numerals

[0055] 1 Floating orin 2 Bell main body 3 Base 4 Bell 5 Shaft portion 5a Shaft tip 5b Shaft base end 6 Upper magnet 7 Insertion hole 8 Lower magnet 9 Spacer 10 Protrusion 11 Groove 12 Recess P Fulcrum

Claims

1. A floating-type bell consisting of a bell body and a base, The bell body includes a bell shaped like a bowl, a shaft portion having a predetermined length disposed at a predetermined location on the bell, and an upper magnet portion disposed around a predetermined intermediate location on the shaft portion. The base includes an insertion hole having a predetermined depth for inserting the shaft portion, and a lower magnet provided around the entrance of the insertion hole; This floating bell is characterized in that the opposing upper and lower magnets have the same polarity and the repulsive force between the magnets is greater than the weight of the bell body.

2. A floating-type bell consisting of a bell body and a base, The bell body includes a bell formed in a bowl shape, a hollow tubular shaft portion having a predetermined length and an open tip, which is disposed at a predetermined location on the bell, and an upper magnet portion disposed at a predetermined height within the hollow tube of the shaft portion; The base includes a protruding portion having a predetermined height that extends upward and is inserted into the hollow tube of the shaft portion, and a lower magnet that is disposed at the upper end of the protruding portion, This floating bell is characterized in that the opposing upper and lower magnets have the same polarity and the repulsive force between the magnets is greater than the weight of the bell body.

3. 3. The floating bell according to claim 1 or 2, characterized in that the shaft portion extends from approximately the center of gravity of the bell when viewed from above.

4. 3. The floating type bell according to claim 1 or 2, characterized in that the shaft portion is made of a non-magnetic material.

5. 2. The floating type bell according to claim 1, characterized in that the base is provided with a protruding portion extending upward and having a predetermined height, and the protruding portion is provided with an insertion hole.

6. 2. The floating type bell according to claim 1, wherein the tip of the shaft portion is present within the insertion hole without contacting the bottom surface of the insertion hole.

7. 3. A floating type bell as claimed in claim 1 or 2, characterized in that a recess is provided at the center of gravity of the inner wall or outer wall of the bell, and the base end of the shaft is in point contact with the recess.

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