JP2010279397A - Game machine speaker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a game machine speaker capable of preventing fraudulence such as breaking the speaker with a fraudulent tool such as a piano wire not to output alarm sound, and capable of reproducing dynamic effective sounds, music and voices in a wide range from low-toned to high-toned sounds. <P>SOLUTION: The game machine speaker is composed of a large-diameter speaker 1 for reproducing from low to middle-toned sounds, a protective cover 2 anchored on the front surface of the large-diameter speaker in such a way as to cover cone paper 1e of the speaker, a small-diameter speaker 3 for reproducing high-toned sounds, and a small casing 4 for housing the small-diameter speaker. A forward rising dome-shaped part 2c is formed on the protective cover 2, and a side sound through-hole 2d is bored in the outer periphery of the dome-shaped part, and a center sound through-hole 2h is formed at the center of the protective cover. As the small casing is anchored on the front surface of the protective cover, the center sound through-hole is concealed by the small-diameter speaker as seen from the front, and the back of the small casing is separated from the center sound through-hole to form a gap 5 for passage of sounds. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a speaker for a gaming machine that is installed in a gaming machine such as a pachinko machine and outputs a sound effect or an alarm.

  As is well known, pachinko machines, arrange ball game machines, sparrow ball game machines, slot machines, and other game machines installed in amusement halls may be used for fraudulent actions such as opening the front door or illegal use such as piano wires. When there is an illegal act such as inserting a tool to open the prize opening or illegally using a magnet to guide the game ball to the prize opening, there is a large alarm to notify the abnormality from the speaker installed on the gaming machine The sound is emitted at the volume.

In general, a speaker of a gaming machine has a grille such as a wire mesh stretched at the sound outlet so that sound can be easily emitted forward. The following Patent Documents 1 and 2 also show such an arrangement around the speaker.
Further, Patent Document 3 below discloses that the back side of the cone paper is crime-proof so that the illegal tool such as a piano wire does not reach the game board even if it is inserted from between the eyes of the grill and passes through the speaker cone paper. It is intended to enhance the crime prevention effect by closing it with a protruding plate.

JP-A-8-66535 JP-A-8-126751 JP 2008-93075 A

However, even in gaming machines with anti-crime measures as described above, a person who intends to cheat destroys the cone paper (diaphragm) or voice coil of the speaker using an unauthorized tool such as a piano wire, and an alarm is issued. There was a risk of fraudulent acts as described above after no sound was produced.
Therefore, the present invention is intended to provide a speaker for a gaming machine that does not have a possibility that a cone paper or a voice coil is completely destroyed and no alarm sound is produced even if an unauthorized tool such as a piano wire is used.
In addition, the present invention has a crime prevention function as described above, but can reproduce a wide range of sounds from low to high, and can play a game with powerful sound effects, music, and voice. It is intended to provide a machine speaker.

  Therefore, a speaker for a gaming machine according to the present invention includes a large-diameter speaker for medium and low-pitched sound reproduction, a protective lid fixed to the front surface of the large-diameter speaker so as to cover the cone paper of the large-diameter speaker, and high-frequency reproduction. A small dome speaker and a small case that accommodates the small-diameter speaker are formed, and the protective lid is formed with a dome-shaped portion that protrudes forward, and a plurality of side sound holes are formed on the outer periphery of the dome-shaped portion. And forming a center sound passage hole in the center of the protective lid, and fixing the small case to the front surface of the protective lid so that the center sound passage hole is hidden by a small-diameter speaker when viewed from the front. The back surface of the small case is separated from the center sound passage hole so that a sound passage gap is formed.

  Further, the present invention is characterized in that, in the above gaming machine speaker, a barbed barb is integrally formed on the front side edge of the center sound passage hole of the protective lid.

  Even if an improper tool such as a piano wire is inserted, it is stopped by the protective lid, so that the large-diameter speaker is not destroyed. For this reason, an alarm sound is not prevented. In addition, since the sound of the large-diameter speaker comes out to the front through the side sound hole and the center sound hole provided in the protective cover, sound in a wide frequency band is reproduced by the large-diameter speaker and the small-diameter speaker under normal conditions. , Can entertain the player.

The disassembled perspective view of the speaker for game machines which concerns on this invention. The perspective view of the speaker for game machines which concerns on this invention. The longitudinal cross-sectional view of the speaker for game machines which concerns on this invention. 1 is an exploded perspective view of a pachinko gaming machine to which a gaming machine speaker according to the present invention is attached.

  Next, embodiments of the present invention will be described with reference to the drawings. In FIG. 1 to FIG. 3, reference numeral 1 denotes a large-diameter speaker for medium and low-frequency sound reproduction called a dynamic type, a housing 1b having a flange 1a formed on the front surface, a permanent magnet 1c, a voice coil 1d, and cone paper 1e. It consists of. 2 is a protective cover made of plastic that is fixed to the front surface of the large-diameter speaker so as to cover the cone paper of the large-diameter speaker 1, 3 is a small-diameter speaker for high-pitched sound reproduction, also referred to as a dynamic type, and 4 It is a small plastic case formed in a dish shape to accommodate a small-diameter speaker.

  The protective cover 2 is formed with flange portions 2a that overlap with the flange 1a of the large-diameter speaker 1 and mounting holes 2b are formed at the four corners of the flange portion 2a, and a dome-shaped portion 2c that protrudes forward is integrated. A plurality of side sound passage holes 2d are formed on the outer periphery of the dome-shaped portion 2c. 2e is an annular protrusion protruding from the front surface of the dome-shaped portion 2c, and 2f is a boss with a plurality of mounting holes protruding from the front surface of the dome-shaped portion 2c. The inside of the dome-shaped portion 2c is formed in a funnel shape, a center sound passage hole 2h is formed at the center of the funnel-shaped portion 2g (the center of the protective cover 2), and a front side edge of the center sound passage hole 2h. A barb-shaped barb 2i is integrally formed.

  The small case 4 is formed in a shallow dish shape that can accommodate the small-diameter speaker 3, has a trumpet-shaped enlarged diameter portion 4 a at the opening edge, and a plurality of mounting pieces 4 b project radially at the peripheral edge portion. Has been. Reference numeral 4 c denotes an opening formed in the small case 4 for projecting the wiring terminal 3 a of the small-diameter speaker 3. Then, the small case 4 is fixed to the front surface of the protective lid 2 by inserting the screw 4d into the mounting piece 4b and screwing the screw into the mounting hole of the boss 2f. By fixing the small case 4 in this manner, the center sound passage hole 2h is hidden by the small-diameter speaker 3 and the outer peripheral edge of the small case 4 when viewed from the front, and the back surface of the small case 4 is centered. A space 5 for sound transmission is formed between the rear surface of the small case 4 and the front surface of the funnel-shaped portion 2g.

  FIG. 4 shows the present invention in which the protective lid 2 is fixed to the front surface of the large-diameter speaker 1 and the small-diameter speaker 3 housed in the small case 4 is disposed on the front surface of the protective lid 2. An example of attaching such a gaming machine speaker to a pachinko gaming machine is illustrated, wherein 6 is a gaming machine main body provided with a gaming board 7, and 8 is an opening 9 through which the gaming machine speaker can penetrate at both upper corners. The door inner plate 10 is formed with a front plate on which grills 11 such as a metal mesh and punching metal are stretched so that the sound of the speaker can be easily passed through the upper corners.

  Since the grill 11 has an approximately 0.5 to 3 mm eye hole, it is possible to insert an unauthorized tool such as a thin piano wire, and destroy the small-diameter speaker 3 by inserting such an unauthorized tool. Although it is difficult to penetrate the tip of the unauthorized tool into the side sound passage hole 2d, it is not possible to destroy the cone paper or the voice coil of the large-diameter speaker 1 even if the unauthorized tool is inserted. It is difficult, and even if the illegal tool is passed through the gap 5, the tip of the illegal tool will come back against the 2i, so that the tip of the illegal tool is inserted into the cone paper of the large-diameter speaker 1 from the center sound passage hole 2h. It is also difficult to reach the voice coil. For this reason, it becomes difficult to destroy the large-diameter speaker 1 using such a fraudulent tool so that an alarm or the like does not occur, and fraudulent acts can be prevented in advance.

  The high-frequency sound is always reproduced by the small-diameter speaker 3 and the medium / low-frequency sound reproduced from the large-diameter speaker 1 goes forward through the side sound hole 2d, through the center sound hole 2h and the gap 5. Since it goes forward, the player can hear powerful, high-quality sound effects, music, and voice that are effective in the mid-low range.

In this embodiment, the mounting piece 4b projecting from the small case 4 is screwed to the boss 2f to form the gap 5 for sound transmission. However, the mounting piece 4b is attached to the front surface of the protective lid 2. The gap 5 may be formed by projecting the piece. In short, the small case 4 may be fixed to the front surface of the protective lid 2 so as to be separated from the center sound passage hole 2h.
Further, the small case 4 may be formed integrally with the outer frame of the small-diameter speaker 3, so that the number of parts can be reduced.
In this embodiment, the center sound passage hole 2h having a round shape is formed at the center of the protective cover 2. However, the center sound passage hole may be formed in an elliptical shape, a polygonal shape, or the like. It is.

  The gaming machine speaker according to the present invention is provided in an arrangement ball gaming machine, a sparrow ball gaming machine, a slot machine gaming machine, etc. in addition to the pachinko gaming machine shown in the embodiment, and at the same time prevents fraudulent acts and has high sound quality. Sound effects, music, and voice can be played.

DESCRIPTION OF SYMBOLS 1 Large diameter speaker 1e Cone paper 2 Protective cover body 2c Dome-shaped part 2d Side surface sound hole 2g Funnel-shaped part 2h Center sound hole 2i Return 3 Small diameter speaker 4 Small case 4b Mounting piece 5 Gap

Claims (2)

  A large-diameter speaker for medium and low-pitched sound reproduction, a protective lid fixed to the front surface of the large-diameter speaker so as to cover the cone paper of the large-diameter speaker, a small-diameter speaker for high-frequency reproduction, and the small-diameter speaker are accommodated The protective lid is formed with a dome-shaped portion protruding forward, a side sound passage hole is formed on the outer periphery of the dome-shaped portion, and a center sound passage hole is formed at the center of the protective lid body. Forming and fixing the small case to the front surface of the protective lid so that the center sound passage hole is hidden by a small-diameter speaker when viewed from the front, and the back surface of the small case is separated from the center sound passage hole. A speaker for a gaming machine, wherein a gap for sound passage is formed.   2. The gaming machine speaker according to claim 1, wherein a protruding bar-like barb is integrally formed on the front side edge of the center sound passage hole of the protective lid.

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