JPH0574B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a sounding unit for a sounding ball, which is suitable as a playing sounding ball for young children or a playing sounding ball for blind people.

Conventional technology As a ball with a sounding function, for example, Tokkosho
There is a disclosure in Publication No. 40-3081. This device had a sound generator placed in the center of a polystyrene foam ball, which was driven by a switch mounted on the ball's surface, producing sound regardless of the ball's movement. .

Problems to be Solved by the Invention As a result, the sound generated is monotonous and merely informs the user of the position of the ball, and although it can be used as an exercise ball for the blind, it is unsatisfactory as a play ball for young children. It is something.

Further, the sounding ball disclosed in the above-mentioned publication has a structure in which the sounding unit is arranged at the center of the ball and is not detachable, and furthermore, the specific structure of the sounding unit is not clearly described.

The present invention provides a sounding unit built into a sounding ball, which is easy to attach and detach, and has a novel internal structure.

Means for Solving the Problems The sounding unit for a sounding ball according to the present invention has a threaded part that is threaded into a threaded part provided on the ball side case, and has a sound emitting hole on the upper end surface. a cylindrical external case; an elastic member fixed to the upper end surface of the external case and having another sound emitting hole communicating with the sound emitting hole; 1 Internal case; A circuit board to which circuit components constituting an impact sensor, a sound signal generation circuit, etc. are fixed, which is housed in the external case; A battery housing hole, a shock sensor housing hole, etc., which are housed in the external case. A second inner case with a hole formed therein; A ring-shaped screw member that is screwed into a threaded part carved on the lower side of the inner peripheral surface of the outer case; A ring-shaped screw member screwed into the threaded part carved on the lower side of the inner peripheral surface of the outer case; a lid member that is screwed together from the outside of the screw member; the first inner case, the circuit board, and the second inner case are fixed to the outer case in a stacked state by pressure contact with the ring-shaped screw member; It is.

Function With this configuration, the sound production unit can be easily attached to and removed from the ball side case, and any sound can be generated by simply replacing the circuit board, and the sound can be generated by applying an impact to the ball. It is possible.

Example Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show the structure of a sounding unit 1. Reference numeral 2 denotes an external case, which is made of impact-resistant plastic such as polycarbonate and has a hollow cylindrical shape with an outer diameter of about 2.5 cm. A sound emitting hole 3 having a diameter smaller than the diameter of the cylindrical body is bored in the end face, and a full opening is formed in the lower end. Reference numerals 4 and 4 indicate minute holes into which the unit device jig 10 shown in FIG. 3 is inserted. 5 is
This is a threaded portion engraved on the outer circumferential surface of the outer case 2, and a threaded portion 6 is similarly engraved on the lower inner circumferential surface of the outer case 2. Reference numeral 7 denotes an elastic member firmly fixed to the sound emitting hole 3 on the upper end surface of the outer case 2 so as to sandwich the elastic member, and is made of soft rubber or the like and acts as a buffer against external force. Reference numeral 8 denotes a sound emitting hole formed in the center of this elastic member 7, which communicates with the sound emitting hole 3 of the outer case 2. Reference numerals 9, 9 indicate micro holes provided corresponding to the micro holes 4, 4 of the external case 2, into which the unit mounting jig 10 is inserted. Reference numeral 11 denotes a piece of leather constituting the outer skin of the elastic member 7, which is made of the same material as the leather panel 12 forming the surface of the ball, and has a plurality of small holes 13, 13, . has been done. 14 is the sound emission hole 8 and the small holes 13, 13...
This is a sand prevention net interposed between... 15 is
A piezoelectric speaker is placed in the outer case 12 at a position facing the sound emitting hole 3 and acts as a sounding means, and its lower end is bonded or otherwise bonded to the first inner case 16 which has impact resistance like the outer case 2 described above. Fixed by The outer diameter of the first inner case 16 is set such that its edge comes into contact with a stepped portion 17 formed on the outer case 2. When the first inner case 16 comes into contact with the step portion 17, the surface of the piezoelectric speaker 15 comes into elastic contact with the elastic member 7. Thereby, the elastic member 7 also acts as a sealing material that prevents moisture and the like from entering the outer case 2. The first inner case 16 is a hollow body having a diameter slightly smaller than the inner peripheral surface of the outer case 2. Reference numeral 18 denotes a disc-shaped circuit board whose periphery is in contact with the lower end of the first inner case 16 in the outer case 2. On the surface of the first inner case 16 side, a sound signal generation circuit such as a melody IC, etc. is installed.
Circuit components 19, 19, etc., such as booster coils, are fixed and covered with silicone rubber 20. 21, 21 are lead wires connecting the piezoelectric speaker 15 and the terminals on the circuit board 18. An impact sensor 22 and contact terminals 23, 23 for contacting the battery are fixed to the other surface of the circuit board 18.
The shock sensor 22 consists of a spring body (not shown), which has one end fixed to the circuit board 18 and a weight (not shown) attached to the other end, and a case, and when the weight comes into contact with the case due to vibration of the weight, an electric signal is generated. This is a configuration that provides the following. Reference numeral 24 denotes a second inner case made of impact-resistant plastic or the like, which consists of a large diameter portion 25 having a diameter slightly smaller than the inner diameter of the outer case 2, and a small diameter portion 26 having a smaller diameter. , the upper end of the large diameter portion 25 contacts the circuit board 18. In addition, this second internal case 24
A hole 27 is formed in a portion where the impact sensor 22 is located, and a hole 29 for housing a battery 28 is further provided. 30 is a ring-shaped threaded member inserted into the small diameter portion 26 of the second inner case 24 and screwed into the threaded portion 6 on the lower inner peripheral surface of the outer case 2, and has a recess into which a threaded jig (not shown) is inserted. grooves 31, 31
is provided, and when tightening, the large diameter portion 25 of the second inner case 24 is pushed upward in the figure,
The first inner case 16, the circuit board 18, and the second inner case 24 are pressed against the stepped portion 17 of the outer case 2 while remaining in a stacked state. 32 is a lid member made of impact-resistant plastic that is screwed into the inner circumferential threaded portion 6 of the external case 2 from the outside of the ring-shaped threaded member 30;
It serves as a lid for storing the battery 28 and for fixing the battery 28. 33 is a rubber O-ring that serves as a sealing material.

34 are the first inner case 16 and the circuit board 1, respectively.
8 and a guide groove formed on the side surface of the second inner case 24 and fits into a guide protrusion 35 provided on the inner wall of the outer case 2 .

46 is a guide piece formed protrudingly from the lower end of the outer peripheral edge of the first internal case 16, and 47, 47 are other guide grooves formed in the large diameter portion 25 of the circuit board 18 and the second internal case 24, respectively. The guide piece 46
are fitted into these guide grooves 47, 47, and the first internal case 16, the circuit board 18 and the second
The relative position of each of the inner cases 24 is determined. Note that during this positioning, the first inner case 16,
The positional relationship between the guide piece 46 and the guide grooves 47, 47 is set so that the guide grooves 34, 34, 34 formed in the circuit board 18 and the second internal case 24 are located in a straight line.

The above guides 34, 34, 34 and guide protrusion 3
The guide means consisting of the guide piece 46 and the guide grooves 47, 47 simplify the assembly work, and at the same time regulate the position between each member after assembly and prevent movement such as rotation. act.

In the above example, the guide piece 46 is
6, but instead of this, a similar guide piece is formed protruding from the upper end of the large diameter portion 25 of the second inner case 24, and the circuit board 18 and the first inner case corresponding to this guide piece are formed. Guide grooves can also be formed at each of the 16 predetermined positions.

The pronunciation unit 1 having the above-mentioned structure is
It is assembled through the following operations. That is, first, the first inner case 16 to which the piezoelectric speaker 15 is fixed is
Next, the circuit board 18 and the second inner case 24 are positioned using the guide piece 46 and the guide grooves 47, 47 as guides, and are brought into a stacked state. After such temporary assembly, the guide grooves 34, 34, 34 are aligned with the guide protrusion 35 of the outer case 2, and using this as a guide, the temporary assembly consisting of the first inner case 16, circuit board 18, and second inner case 24 is assembled. It is stored in the external case 2. Thereafter, by tightening and fixing this with the ring-shaped screw member 30 and further screwing the lid member 32, the sounding unit 1 is completed.

In FIG. 2, reference numeral 36 denotes a ball-side case made of a thin aluminum alloy or heat-resistant and impact-resistant plastic, and is shaped like a drop having an inner diameter slightly larger than the outer diameter of the sounding unit 1. , and a threaded portion 37 is carved on the inner peripheral surface thereof. The sound generating unit 1 is attached to the ball-side case 36 so that the screw portions 5 and 37 are screwed together. Reference numeral 38 denotes a rubber storage portion formed integrally with or bonded to the tube 40 of the ball 39, and made of the same rubber material as the tube 40, for example, butyl rubber, and shaped into a pot. The ball side case 36 is firmly fixed to the storage portion 38 by a collar portion 41 provided at its upper end. The reason why the ball-side case 36 is required to have heat resistance is because the ball-side case 36 is buried and fixed in the storage section 38 at the same time as the tube 40 and the storage section 38 are vulcanized. In order to prevent rotation of the ball side case 36, a plurality of grooves (not shown) are formed in the vertical direction on the outer peripheral surface of the ball side case 36. 4
2 is a thread-wound reinforcing layer wound on the surface of the tube 40; 43 is a rubber lining layer coated on this thread-wound reinforcing layer 42; 12 is a natural leather or This is the aforementioned leather panel made of synthetic leather.

FIG. 3 shows the state of the sound unit 1 before it is attached to the ball 39. Insert the unit mounting jig 10 called a crab eye into the small holes 9, 9, and while rotating the sound unit 1, attach the unit to the ball side case. Screw in 36. Thus, the screw portions 5 and 37 of the outer case 2 and the ball side case 36 are screwed together, and the sound generating unit 1 is housed and fixed within the ball side case 36.

FIG. 4 shows the shape of the surface of the ball 39, and is an example of a soccer ball structure. Ball 3
9 can also be applied to balls with a gas-filled structure such as dodgeballs and volleyballs, as well as sponge balls and the like.

FIG. 5 shows a cross-sectional structure of the sucker ball 39 shown in FIG. 4, and the mounting portion of the sound generating unit 1 is set on the opposite surface of the air injection valve 44, so that the weight of both is balanced. Specifically, the total weight of the sounding unit 1, the ball side case 36, and the storage section 38 can be suppressed to about 20 g to 30 g, while the weight of the valve 44 is usually about 8 g. A balancer 45 weighing approximately 12g to 22g is added to the side. Normally, a play ball for young children, such as a dodge ball for children, weighs about 200 to 380 g, and a soccer ball for children weighs about 300 to 320 g, so when used for play, the movement of the ball is hardly affected.

Effect of the invention According to the present invention, the following effects can be obtained.

The threaded part of the sounding unit on its outer circumferential surface is screwed into the threaded part of the ball-side case, so it is easy to attach the sounding unit to the ball, and it has a strong adhesion to the ball. It is strong.

The internal structure of the sound generation unit is a laminated structure consisting of the first internal case to which the piezoelectric speaker is fixed, the circuit board, and the second internal case, and these are all fixed together by a ring-shaped screw member. Fixing work is extremely simple.

The first internal case, the circuit board, and the second internal case are aligned by the guide pieces and guide grooves provided in each case, and are then assembled into a temporary assembly with a laminated structure, so that the internal components of the sounding unit can be assembled. Work can be done easily and quickly.

The first internal case, the circuit board, and the second internal case can be temporarily assembled into a unit as described above, and when storing it in the external case, it is only necessary to store this temporary assembly. The work of storing these parts can be made easy and quick.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, FIG. 1 is an exploded perspective view of the sounding unit, FIG. 2 is a sectional view of the sounding unit attached to the ball, and FIG. 3 is a perspective view showing the state before the sounding unit is attached. Figure 4 is a surface view of the ball,
FIG. 5 is a cross-sectional view of the ball. 1... Sound unit, 2... External case, 7...
...Elastic member, 15... Piezoelectric speaker, 16... First internal case, 18... Circuit board, 22... Impact sensor, 23... Electrode, 24... Second internal case, 28... Battery, 32... ... Lid member, 36 ... Ball side case, 38 ... Storage section, 39 ... Ball, 40 ... Tube, 44 ... Valve, 46 ...
...Guide piece, 47, 47... Guide groove.

Claims (1)

[Scope of Claims] 1. It has a threaded part on its outer circumferential surface that is screwed into a threaded part provided on the ball side case, and another threaded part is carved on the lower part of the inner circumferential surface, and a sound emitting device is provided on the upper end surface. a cylindrical outer case having a hole; an elastic member having another sound emitting hole fixed to the upper end surface of the outer case and communicating with the sound emitting hole; a sounding means housed in the outer case; A first inner case in which the shock sensor and circuit components constituting the sound signal generation circuit, etc., are fixed, which are housed in the outer case; A battery storage hole and a shock absorber housed in the outer case. A second inner case with a sensor storage hole etc.; a ring-shaped threaded member that is screwed into a threaded portion carved on the lower inner circumferential surface of the outer case; a threaded portion carved on the lower inner circumferential surface of the outer case; a lid member that is screwed onto the ring-shaped screw member from the outside; and the first inner case, the circuit board, and the second inner case are fixed to the outer case in a stacked state by pressure contact with the ring-shaped screw member. A pronunciation unit for a pronunciation ball that is characterized by: 2. The first internal case has a guide piece protruding from its outer periphery, and the circuit board and the second internal case have guide grooves at predetermined positions, and the guide piece is connected to the guide groove. 2. A sounding unit for a sounding ball according to claim 1, wherein the relative positions of each of the first inner case, the circuit board, and the second inner case are determined by the fitting of the first inner case, the circuit board, and the second inner case.