JP3159646U - Electronic air horn - Google Patents

Abstract

[PROBLEMS] To prevent illegal modification using compressed air from a high-pressure tank for an air brake, and to direct the unique warning sound of an air horn to reach a long distance without using a compressor or a high-pressure tank. An electronic air horn having sound pressure is provided. A plurality of bugle tubes are installed in a perforated hole of a mounting base, and an electronic buzzer that emits sound is provided on a diaphragm provided with a metal plate attracted to an electromagnet on the opposite surface. The mounting hole has a conical part that narrows down the sound and an expansion part that expands the sound suddenly. It has a moving arm and opening / closing means for opening and closing the current input of the electromagnet. When the metal plate is attracted to the electromagnet, the opening / closing means is opened and closed by the arm. [Selection] Figure 3

Description

  The present invention relates to an electronic air horn for a horn that is mounted on a large truck such as a trailer and uses a bugle type horn.

  Air horns equipped with bugle-type horns have been used for a long time as warning whistles for boats, such as fog whistle and trains that use high-pressure compressed air, in order to ensure safe operation and further distant locations.

  In addition, horns used in large trucks such as trailers, like conventional air horns, compressors that compress air, high-pressure tanks that store compressed air, electric valves that are opened and closed by horn switches, and compression An air horn composed of a bugle type horn (hereinafter referred to as “Bugle tube”) having a diaphragm that emits sound by releasing air is used. A conventional air horn using compressed air used in this large truck or the like is also known as “Yankee horn”.

  A conventional air horn uses a bugle tube or a resonance tube type horn. From the shape of the air horn, for example, the roof of a truck, etc. for the purpose of reaching a far-distance warning sound having directivity in the traveling direction and a stable sound pressure. Installed on.

  On the other hand, recently, when a cylinder air tank is provided between the electric valve and the diaphragm and the electric valve is opened and closed, the scale generated from the bugle is generated by retaining the compressed air in the cylinder air tank and gradually releasing it. An air horn of a system that changes the sound and maintains the sound is disclosed (for example, see Patent Document 1).

  In addition, as an electronic horn using an electronic buzzer as a sound source, it is a horn formed in a non-directional spiral circular tube or a rectangular tube for the purpose of compact mounting in a narrow place such as an engine room of an automobile. A spiral horn is known which has a tone similar to that of an air horn and is attached to a high-class vehicle or the like for differentiation from a general automobile. For example, when a spiral horn is mounted in a vehicle, a configuration is disclosed that is excellent in waterproofness while ensuring sound pressure, and that can effectively use an installation space (see, for example, Patent Document 2).

  In addition, an electronic buzzer called a non-directional flat electric horn is used for motorcycles and general automobiles, and a small metal diaphragm is vibrated by an electromagnetic coil, which is small but easily large. A structure for generating an alarm sound is disclosed (for example, see Patent Document 3).

Japanese Patent Laid-Open No. 6-1181 JP 2009-6358 A JP 2009-168844 A

  However, since the conventional air horn disclosed in Patent Document 1 uses compressed air as a sound source, it is indispensable to newly install a compressor for compressing air and a high-pressure tank for storing the compressed air, and the equipment is large. In addition, a large space for storing equipment is required.

  In addition, the compressor and the high-pressure tank to be installed are expensive, and there is a problem that the installation cost is required because it is necessary to have a person who has expertise in the installation work.

  For this reason, when installing on a large truck, an illegal modification was made to divert compressed air from the high-pressure tank for air brakes, which is not originally permitted, and supply it to the air horn. There is a problem that the brakes do not work due to leakage.

  In addition, in the electronic horn disclosed in Patent Document 2 and Patent Document 3, when a conventional air horn is mounted as it is in a narrow engine room or the like, a large acoustic warning sound will sound inside the vehicle, which is practically used. There are difficulties. Therefore, at the expense of the directivity and high sound pressure of the conventional air horn, only the unique tone of the air horn is realized with the electronic buzzer and the spiral horn, and the warning sound is transmitted only to the vicinity of the car. There is a problem that the composition has to be forced.

  The present invention has been made to solve the above problems, and does not use an expensive compressor or high-pressure tank, which has been indispensable for conventional air horns. An electronic buzzer that is small and can easily generate a loud alarm sound to prevent unauthorized modification that causes a serious adverse effect on the brake device when the compressed air hose is diverted and the diverted air hose is damaged. The electronic air horn with the directivity and sound pressure comparable to the unique timbre of the conventional air horn, the directivity that makes the warning sound reach far, and the stable sound pressure. The purpose is to provide.

  In order to achieve the above object, the present invention comprises the following configurations (1) to (2).

  (1) A plurality of bugle tubes are installed at equal intervals in perforated holes through which the mounting pedestal penetrates, and the opposite surface of the mounting pedestal where the bugle tube is installed is attracted to the iron core of the electromagnet by inputting current. An electronic air horn having an electronic buzzer that emits sound by vibrating a vibration plate to which a metal plate is bonded, wherein the perforated hole that penetrates the mounting base expands the sound abruptly. By providing an inflating part, it has a function of converting to sound specific to the Bugle tube, and the electronic buzzer is fixed to the center of a cylindrical housing, and the outer peripheral part is fixed to the cylinder. And the vibration plate disposed opposite to the iron core of the electromagnet, an arm that moves in conjunction with the metal plate, and an opening / closing means that opens and closes the input of current to the electromagnet, and is joined to the vibration plate. The metal There when it is attracted to the iron core of the electromagnet, electronic air horn the switching means by said arm interlocked with said metal plate and wherein the opening and closing the input current to the electromagnet.

  (2) The arm has a spring for keeping the opening / closing means closed at all times, and is opened / closed against the spring when the opening / closing means is opened / closed by the arm moving in conjunction with the metal plate. The electronic air horn according to (1), characterized in that:

  According to the present invention, an expensive compressor or a high-pressure tank, which is indispensable for a conventional air horn, is not used, and compressed air is diverted from a high-pressure tank for an air brake, which has a serious adverse effect on the brake device. It is possible to prevent illegal acts, and the function of the bugle tube that has the directivity and stable sound pressure that makes the warning sound reach a long distance, which was provided by the conventional air horn, and easily generates a large alarm sound. By combining with an electronic buzzer that can be used, an electronic air horn that realizes the unique tone of a conventional air horn can be provided.

  In particular, in order to enhance the resonance sound effect of the bugle tube, the vibration sound generated from the electronic buzzer is once narrowed by the conical inclined surface by the conical hole in the mounting base, and the expansion part of the bugle is expanded. By abruptly expanding, a very strong sound pressure and a unique timbre with resonance effect can be generated, and a richer range of alarm sounds can be generated by attaching a plurality of bugle tubes.

BRIEF DESCRIPTION OF THE DRAWINGS It is an external view of the electronic air horn which concerns on a present Example 1, (a) is a side view of an electronic air horn, (b) is a rear view of the mounting base in which the electronic buzzer was stored. An exploded perspective view of an electronic buzzer constituting an electronic air horn Sectional drawing of the electronic air horn which concerns on this Example 1. FIG. 2 is an operation diagram of the electronic air horn according to the first embodiment, where (a) is an operation diagram of the electronic buzzer when the horn switch is OFF, and (b) is an operation diagram of the electronic buzzer when the horn switch is ON.

  Hereinafter, the form for implementing this invention is demonstrated in detail by an Example.

  FIG. 1 is an external view of an electronic air horn 1 according to the present embodiment, FIG. 1 (a) is a side view of the electronic air horn, and FIG. 1 (b) is a back cover 4 of a mounting base 3 in which an electronic buzzer 12 is housed. FIG.

  Back covers 4a and 4b, in which two bugle tubes 2a and 2b having different tube diameters and lengths are attached to the mounting base 3 at predetermined intervals, and electronic buzzers 12 corresponding to the respective bugle tubes are accommodated therein, The mounting base 3 is screwed at four locations. The sound emitted by the electronic buzzer 12 is given a strong directivity and a stable sound pressure when propagating through the mouth hole 2a of the mounting base 3 through the hole 3a.

  FIG. 2 is an exploded view of the electronic buzzer 12 housed in the back covers 4a and 4b. The front and rear of the diaphragm 7 are sandwiched between waterproof packings 8a and 8b and attached to the outer peripheral surface of the housing 12a of the electronic buzzer 12. The back cover 4 is screwed to the mounting base 3 at four locations. The electromagnet 6 fixed to the central portion of the housing 12a of the electronic buzzer 12 has a structure in which an iron core 6b that adsorbs a metal plate 7a bonded to the back surface of the diaphragm 7 by a magnetic force is separated into left and right. This is a structure for passing the arm 10 that opens and closes to the center. When the iron core 6b separated to the left and right attracts the metal plate 7a of the diaphragm 7 by magnetic force, the arm 10 passed to the center opposes the arm 10 against the spring 11 attached to one side of the arm 10. By pushing down, one contact of the switching contact 9 is pushed down and the switching contact 9 is opened.

  In addition, the structure of the diaphragm 7 of the electronic buzzer 12 is such that the diaphragm 7 vibrates due to the metal plate 7 a formed on the back surface of the diaphragm 7 continuously colliding with the iron core 6 b of the electromagnet 6 and generates a buzzer sound. appear. The metal plate 7a has a function of pushing down the arm 10 that opens and closes the switching contact 9 when attracted to the electromagnet 6 by magnetic force.

  FIG. 3 is a cross-sectional view of the electronic air horn according to the present embodiment. Two bugle tubes 2a and 2b having different lengths are attached to the mounting base 3 at a predetermined interval, and the mounting base 3 is perforated in a conical shape. The metal plate 7a of the diaphragm 7 having the air hole 3a and the outer periphery sandwiched between the waterproof packings 8a and 8b is attached to the coil 6a of the electromagnet 6 fixed to the bottom surface of the housing 12a of the electronic buzzer 12. It is attracted to the iron core 6b by the magnetic force generated by supplying current through the input terminals 12c and 12d provided on the bottom surface of the housing 12a.

  The arm 10 that opens and closes the switching contact 9 functions so that the contact of the switching contact 9 is always pressed and closed by the spring 11. When current is supplied to the electronic buzzer 12 and the metal plate 7a is attracted to the electromagnet 6, the metal plate 7a pushes down the arm 10 that opens and closes the switching contact 9 against the spring 11 to open the contact of the switching contact 9. To do. When the arm 10 is pushed down, the contact of the switching contact 9 is opened, the input current to the electromagnet 6 is cut off, the magnetic force disappears, and the metal plate 7a of the diaphragm 7 adsorbed on the iron core 6b returns to its original position. When the diaphragm 7 returns to the original position, the contact of the switching contact 9 attached to the arm 10 of the switching contact 9 interlocking with the diaphragm is joined again by the drag of the spring 11. By this operation, the metal plate 7a and the iron core 6b continuously collide, whereby the vibration plate 7 vibrates and generates a buzzer sound.

  The blow hole 3a drilled in a conical shape on the mounting base 3 to which the two bugle tubes 2a and 2b having different lengths are mounted has a resonance effect of the buzzer sound generated from the diaphragm 7 of the electronic buzzer 12. In order to enhance the sound, the sound is once narrowed by a conical inclined surface like a brass mouthpiece, and the sound is suddenly expanded at the inflated portion to which the bugle tube 2 is attached, thereby generating extremely strong sound pressure and a unique tone. Demonstrate the function. A strong sound pressure generated in the blow hole 3a and a warning sound with a unique tone are light and have directivity and resonance effect as they propagate through the two bugle tubes 2a and 2b having different tube diameters and lengths. A soft tone is given, and a warning sound having a rich range is emitted from the opening of each bugle tube 2a, 2b.

  FIG. 4 is an operation diagram of the electronic air horn 1 according to the present embodiment, FIG. 4A is an operation diagram of the electronic buzzer when the horn switch 13 is OFF, and FIG. 4B is an operation diagram of the horn switch 13 being ON. It is an operation | movement figure of an electronic buzzer at the time.

  When the horn switch 13 is turned on as shown in FIG. 4B, when a current is input to the coil 6a of the electromagnet 6 from the battery 14 via the input terminal 5, a magnetic force is generated in the electromagnet 6 and the iron core 6b collides with the iron core 6b by adsorbing the metal plate 7a of the diaphragm 7 disposed on the opposing surface. At this time, one end 9b is attached to the spring 11 in conjunction with the metal plate 7a to be adsorbed, and the other contact 9b of the switching contact 9 for supplying the current of the input terminal 5a to the coil 6a is attached to the other end. The arm 10 is pushed down against the spring 11. When the arm 10 is pushed down, the contact of the switching contact 9 is opened, the input current to the electromagnet 6 is cut off, the magnetic force disappears, and the metal plate 7a of the diaphragm 7 adsorbed on the iron core 6b returns to its original position. However, when the diaphragm 7 returns to the original position, the contact 9b attached to the arm 10 of the switching contact 9 interlocking with the diaphragm is contacted with the contact of the switching contact 9 by the drag of the spring 11 attached to the arm 10. 9a and 9b are joined again. If the horn switch 13 remains ON, the metal plate 7a and the iron core 6b continuously collide by repeating this operation, and the diaphragm 7 vibrates and generates a buzzer sound. In the process that the sound generated by vibrating the diaphragm 7 by continuously colliding with the iron core 6b of the electromagnet 6 propagates through the tube hole of the bugle 2 through the conical hole 3a of the mounting base 3, It is emitted from the electronic air horn 1 as an alarm sound having a unique tone color with a strong directivity and a stable sound pressure.

  The number of bugles 2 and electronic buzzers 12 to be mounted on the mounting base 3 is two bugles 2 and electronic buzzers 12 for explanation in this embodiment, but a plurality of bugles such as three or four are installed. 2 and the electronic buzzer 12 can be mounted, and thus the present invention is not limited.

  As described above, according to the electronic air horn of the present embodiment, the brake is not used without using an expensive compressor or a high-pressure tank, which is indispensable with the conventional air horn, or using the compressed air from the high-pressure tank for the air brake. In order to prevent illegal acts that have a serious adverse effect on the device, the function of the bugle type horn with the directivity and stable sound pressure that the warning sound reaches to a long distance provided by the conventional air horn, and simply By combining with an electronic buzzer that can generate a large alarm sound, an electronic air horn that realizes an alarm sound of a unique tone color having a strong directivity and a stable sound pressure can be provided.

  In particular, in order to enhance the resonance sound effect of the Bugle tube, the air outlet hole drilled in a conical shape on the mounting base once narrows the sound generated from the electronic buzzer with a conical inclined surface, To provide an electronic air horn that generates extremely strong sound pressure and a unique timbre with a resonance effect by abruptly expanding, and that generates a richer range of alarm sounds by attaching multiple bugle tubes Can do.

1 Electronic air horn 2 Bugle (compatible with bugle type horn)
3 Mounting pedestal 3a Blow hole (corresponds to drill hole)
4 Back cover 5 Power supply terminal 6 Electromagnet 6a Coil 6b Iron core 7 Diaphragm 7a Metal plate 8 Packing 9 Open / close contact (corresponding to open / close means)
10 arm 11 spring 12 electronic buzzer 13 horn switch 14 battery

Claims (2)

A plurality of bugle tubes are installed in the perforated holes that penetrate the mounting base at equal intervals. On the opposite surface of the mounting base on which the bugle tube is installed, a metal plate that is attracted to the iron core of the electromagnet by inputting current is provided. An electronic air horn having an electronic buzzer that emits sound by vibrating the joined diaphragm,
The perforated hole penetrating the mounting base has a function of converting to sound specific to the Bugle tube by including a conical part that narrows down the sound and an inflating part that rapidly expands the sound,
The electronic buzzer is linked to the electromagnet fixed to the center of a cylindrical housing, the diaphragm having an outer peripheral portion fixed to the cylinder and disposed opposite to the iron core of the electromagnet, and the metal plate. And an open / close means for opening and closing an input of current to the electromagnet,
When the metal plate joined to the diaphragm is attracted to the iron core of the electromagnet, the opening / closing means opens and closes an input of current to the electromagnet by the arm interlocked with the metal plate. Air horn.   The arm has a spring for keeping the opening / closing means closed at all times, and when the opening / closing means is opened / closed by the arm moving in conjunction with the metal plate, the arm is opened / closed against the spring. The electronic air horn according to claim 1, characterized in that:

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