JP2005224420A - Light emitting ball - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light emitting ball with high durability in which the impact resistance of a light emitting unit is improved. <P>SOLUTION: The light emitting ball 20 is constituted by housing the light emitting unit 10 emitting light by impact or vibration in a hollow spherical body. The light emitting unit 10 is constituted of a light emitting element 1, a battery 2 for driving the light emitting element 1, a switch 5 operating by impact or vibration, a control circuit making the light emitting element 1 emit light by the operation of the switch 5, and a circuit board 9 for mounting the above parts, and is sealed in a spherical case 6. These parts are supported and secured with pushing ribs 12 to 15 protrudingly formed in the inner wall of the spherical case 6. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a light-emitting ball in which a light-emitting device is housed in a hollow sphere and emits light by external impact or vibration, and more particularly to a light-emitting ball with improved impact resistance of the light-emitting device.

  Conventionally, a light emitting device is configured by collectively mounting a light emitting element, a driving battery, a switch that operates by impact or vibration, a control circuit for light emission, etc. on a circuit board, and the light emitting device is covered with a viscoelastic resin material. There is known a light-emitting ball that is housed and fixed inside a hollow sphere that is made to emit light by impact or vibration upon impact.

For example, when a light-emitting ball having the above structure is used for park golf, grand golf, a gate ball or the like, the visibility of the ball after hitting is improved, and the direction of travel of the ball even in play in an environment where the brightness is reduced such as in the evening This makes it possible to enjoy playing easily even at night without installing a large-scale lighting device.
Patent Document 1 is disclosed as a prior art of such a light emitting ball.
JP 2002-346002 A

  However, the light emitting ball having the above structure has a problem that the batting elements such as the light emitting element and the switch mounted on the circuit board are detached or damaged due to a strong impact at the time of hitting, and the light emitting operation due to the trouble occurs. Abnormality and durability of the light emitting ball is extremely short, so how to make the mounting of each part constituting the light emitting device have earthquake resistance is a big issue to improve the durability of the light emitting ball. It was.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a light emitting ball excellent in durability with improved impact resistance of a light emitting device.

  That is, the present invention according to claim 1 is a light-emitting ball in which a light-emitting device is accommodated in a hollow sphere, and the light-emitting device emits light by impact or vibration. The light-emitting device includes a light-emitting element, A battery for driving the light emitting element, a switch operated by impact or vibration, a control circuit for causing the light emitting element to emit light by the operation of the switch, and a circuit board on which these are mounted are enclosed in a spherical case In addition, each of these parts is supported and fixed by a holding rib protruding from the inner wall of the spherical case.

  According to a second aspect of the present invention, in the light-emitting ball according to the first aspect, each of the parts is fixed so as to be pressed against the circuit board from above by the pressing rib. It is said.

  Further, according to a third aspect of the present invention, in the light emitting ball according to the first or second aspect, the spherical case is composed of a pair of upper and lower hemispheres made of high impact resistance resin. The pressing ribs are integrally formed on the inner wall of each hemisphere.

  According to a fourth aspect of the present invention, in the light emitting ball according to any one of the first to third aspects, the spherical case is made of a polycarbonate resin.

  Further, the present invention described in claim 5 is characterized in that the light-emitting ball according to any one of claims 1 to 4 is used for park golf, ground golf, or gate ball.

  Here, in the configuration according to claims 1 to 3, since each part mounted on the circuit board including the circuit board is directly supported from above by a pressing rib, the shock resistance excellent in each part. And a highly durable light-emitting ball can be realized.

  Further, in the configuration according to claim 4, the polycarbonate resin is excellent in aging resistance and impact resistance, and there is no fear that the spherical case is easily damaged even when subjected to a strong impact at the time of impact. Protected from.

  Moreover, in the structure of Claim 5, a highly durable light-emitting ball can be provided for park golf, ground golf, and gate balls.

  As described above, according to the present invention, the impact resistance of the light emitting device is improved, and a light emitting ball having high durability can be obtained.

  In addition, due to the above effects, in the case of park golf, grand golf, or gate balls, even in an environment where the brightness is reduced, such as in the evening, the direction of movement of the ball can be clearly grasped by normal light emission when the ball is hit. You will be able to enjoy playing with peace of mind.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 shows the structure of the light emitting device, FIG. 2 shows the structure of a spherical case, and FIG. 3 shows the internal structure of the light emitting ball according to the present invention.
This light emitting ball is suitable for use in park golf, grand golf, a gate ball, or the like.

As shown in FIG. 3, the light emitting ball 20 of this embodiment has an outer diameter of about 50 to 70 mm in which a shell 8 made of a transparent or translucent viscoelastic resin material is formed on the surface of a transparent or translucent spherical core 7. A light emitting device 10 which is a sphere and is enclosed in a spherical case 6 is accommodated in the central portion of the spherical core 7.
The spherical core 7 is composed of a pair of upper and lower hemispheres 7a and 7b made of high impact-resistant resin, each of which is a hemispherical depression in which approximately half of the spherical case 6 is accommodated in the central portion of the flat circular portion. 11 is formed.

  These hemispheres 7a and 7b can be formed by injection molding. The spherical case 6 in which the light emitting device 10 is enclosed is accommodated in the recess 11 of one hemisphere 7a and the exposed portion is covered with the recess 11. Thus, the spherical case 6 can be accommodated in the central portion of the spherical core 7 by combining the other hemisphere 7b. After the spherical case 6 is accommodated, a shell 8 is formed by injection-molding a viscoelastic resin material on the outer surface of the spherical core 7 to form a perfect light emitting ball.

  The light emitting device 10 includes a light emitting diode 1, a button battery 2 that serves as a driving power source for the light emitting diode 1, and a bracket 3 that supports the upper surface of the button battery 2 and maintains the connectivity of the battery 2 from impact and vibration. A switch 5 that is turned on by impact or vibration, and a control IC (not shown) that causes the light-emitting diode 1 to be energized and emit light for a certain period of time when the switch 5 is turned on. It is enclosed in a transparent or translucent spherical case 6 in a state of being packaged together.

  The spherical case 6 is a hollow body having an outer diameter of about 20 to 25 mm, and is a polycarbonate resin (trade name: Panlite LN-) that is excellent in both aging resistance and impact resistance so as not to be damaged by a strong impact when hitting a ball. 2250, manufactured by Teijin Chemicals Ltd.). A circuit board 9 on which each part is mounted is fixed inside the hollow body by a suitable support mechanism described later.

  In the light emitting device 10 according to the present embodiment, the circuit board 9 is disposed in the center of the spherical case 6 and the various parts described above are mounted on both surfaces of the circuit board 9 in a well-balanced manner.

That is, in FIG. 1, a switch 5, a light emitting diode 1, a control IC (not shown) and the like are mounted on one surface of the circuit board 9, and the light emitting diode 1 and the bracket 3 are mounted on the other surface of the circuit board 9. The held button battery 2 is mounted in a well-balanced manner.
The switch 5 is composed of a cylindrical spring member 5a in which a conducting wire is wound spirally, and a metal stick 5b erected at the center of the cylindrical body, and is generated by vibration of the spring member 5a. Both contacts and conduction are used as a switch function. The light emitting diode 1 is mounted in a state where the two light emitting portions are bent and the light emitting portion is laid down.

  In this way, a plurality of parts constituting the light-emitting device 10 are mounted in a balanced manner on a circuit board and sealed in a spherical case having excellent impact resistance, so that wiring cutting that is likely to occur during the ball processing process, etc. Can be prevented, and the impact applied to each part can be mitigated to some extent by dispersing the strong impact at the time of hitting the ball in the spherical case.

  In addition, in the present invention, as shown in FIGS. 1 and 2, a large number of pressing ribs 12 to 15 are provided on the inner wall of the spherical case 6 to press each part from above. These holding ribs 12 to 15 are arranged in various shapes corresponding to the respective parts, thereby enhancing the impact resistance of the light emitting device 10.

As shown in FIG. 2, the spherical case 6 of the present embodiment is configured by a combination of a pair of upper and lower hemispheres 6a and 6b.
On the inner wall of one hemisphere 6a, there are triangular holding ribs 15 for supporting the four peripheral portions of the circuit board 9 at the opening edge thereof, and the light emitting diode 1 is supported by the spherical portion. An arch-shaped pressing rib 12 and a cylindrical pressing rib 14 in the vicinity of the light-emitting diode 1 and supporting the switch 5 are provided so as to protrude corresponding to the mounting position of each part.
Further, on the inner wall of the other hemispherical body 6b, there are triangular holding ribs 13 at the opening edge and supporting the peripheral portion of the plate bracket 3 at five locations, and at the spherical surface thereof, there are light emitting diodes. An arch-shaped pressing rib 12 that supports 1 protrudes corresponding to the mounting position of each part.

  Each hemisphere 6a, 6b can be formed by injection molding, and these holding ribs 12-15 are also formed by integral molding.

The spherical case 6 is obtained by fitting the opening edge 17 of the hemisphere 6b to the opening step 16 of the hemisphere 6a and bonding the opening edges of the hemispheres 6a and 6b by ultrasonic welding or the like.
At this time, when the circular circuit board 9 is arranged on the opening step portion 16 of the hemisphere 6a, the circuit board 9 is disposed and fixed at the center of the spherical case 6 while being sandwiched between the pair of hemispheres 6a and 6b. Is done.

  In this state, the four peripheral portions of the circuit board 9 are supported from both sides by the bottom side 15a of the pressing rib 15 and the bottom side 13a of the pressing rib 13, and each light emission mounted on the circuit board 9 is provided. The light emitting base end portion of the diode 1 is supported by the flange-shaped recess 12 a of the pressing rib 12, and the peripheral portion of the plate bracket 3 that holds the button battery 2 is supported by the step portion 13 b of the pressing rib 13. Further, the holding rib 14 has a hole 14a, and the spring material 5a is supported in a state in which the stick 5b of the switch 5 is fitted into the hole 14a.

  Further, in the present embodiment, in addition to the support structure by the pressing rib, in the switch 5, resin is allowed to flow through the circuit board 9 to fix the end of the spring member 5 a to the circuit board. 1, the gap between the light emitting diode 1 and the circuit board 9 and the gap between the light emitting diode 1 and the bracket 3 are filled with a resin 18 having a high viscosity for buffering, and the resin is allowed to flow from above to fill the gap between the light emitting diode 1 and the light emitting diode 1. Is further fixed to the circuit board 9 and the bracket 3 to further improve the shock resistance of the switch 5 and the light emitting diode 1.

In this way, holding ribs 12 to 15 having various shapes corresponding to the respective parts are provided on the inner wall of the spherical case 6 so as to support the circuit board and each of the parts mounted on the circuit board from above. -By adopting a fixed structure, the impact resistance of each part is improved, and a highly durable light emitting ball 20 for park golf, ground golf, or gate ball can be provided.
Incidentally, in the light emitting ball 20 of the present invention having the support structure, the durability time (the number of times of hitting the ball capable of normal light emission) is about 10 times that of the conventional light emitting ball 20 not having the support structure. .

The structure of the light-emitting device concerning this invention is shown, (a), (c) is a top view, (b) is a side view. The perspective view which shows the structure of a spherical case. The figure which shows the internal structure of the light emission ball | bowl which concerns on this invention.

Explanation of symbols

1 Light emitting element (light emitting diode)
2 batteries (button batteries)
5 Switch 6 Spherical case
6a, 6b Hemisphere 9 Circuit board 10 Light emitting device 12-15 Holding rib 20 Light emitting ball

Claims (5)

In a light emitting ball in which a light emitting device is housed in a hollow sphere and the light emitting device emits light by impact or vibration,
The light-emitting device includes a light-emitting element, a battery for driving the light-emitting element, a switch that operates by impact or vibration, a control circuit that causes the light-emitting element to emit light by the operation of the switch, and a circuit board on which these are mounted And is enclosed in a spherical case, and each of these parts is supported and fixed by a pressing rib protruding from the inner wall of the spherical case. The light emitting ball according to claim 1, wherein each of the parts is fixed so as to be pressed against the circuit board from above by the pressing rib. The spherical case is composed of a pair of upper and lower hemispheres made of high impact resistant resin, and the pressing ribs are integrally formed on the inner wall of each hemisphere. The light emitting ball according to any one of 2 above. The light emitting ball according to any one of claims 1 to 3, wherein the spherical case is made of polycarbonate resin. The light-emitting ball according to any one of claims 1 to 4, wherein the light-emitting ball is for park golf, ground golf, or gateball.

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