JP4065278B2 - Security alarm - Google Patents

Description

  The present invention relates to a security alarm, and more particularly to a security alarm composed of a buzzer and a whistle.

  Currently, crime prevention buzzers are provided to prevent or deter crime. This buzzer is used to make a loud sound by turning on a switch or the like instead of making a loud voice when the danger is in danger.

  This makes it possible to prevent crimes and to seek rescue.

  In the conventional security buzzer as described above, the sound generation means is housed inside and a power source for driving the sounding means is provided. In an emergency, when a switch is turned on, a predetermined voltage is supplied from the power source to the sound generation means, and a sound is emitted.

  However, since the buzzer for crime prevention is not always used, even if a trouble or the like occurs in the sound generation means, this may not be noticed and there may be no sound when necessary. Further, even if there is no problem in the sound generation means, the voltage of the power source may be lowered and the desired volume may not be achieved.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a security alarm device that can always reliably exert an alarm effect in an emergency.

  In order to achieve the above object, the invention according to claim 1 is a security alarm, wherein a detachable pin is inserted, and a buzzer having sounding means for emitting a sound in response to the evacuation operation of the pin; A whistle connected to the outer end side of the pin at the time of attachment is provided, and the natural frequency of the sound emitted by the whistle and the natural frequency of the sound emitted by the buzzer are substantially the same.

  With this configuration, the whistle can be used regardless of the pin mounting state, and a sound is emitted from the buzzer when the pin is pulled out. Also, the whistle sound and the buzzer sound resonate.

  According to a second aspect of the present invention, in the configuration of the first aspect of the invention, whether or not the operation of the sound generation means is normal in response to the first inspection button provided on the buzzer and the depression of the first inspection button. First discriminating means for discriminating is further provided.

  If comprised in this way, the operating condition of a buzzer can be discriminate | determined by pushing down a 1st test | inspection button.

  According to a third aspect of the present invention, in the configuration of the second aspect of the invention, the first determination means activates the sound generation means when the operation of the sound generation means is normal.

  With this configuration, when the sound generation means is normal, a sound is produced when the first inspection button is pressed down.

  According to a fourth aspect of the present invention, in the configuration of the second or third aspect of the present invention, a voltage supply unit that supplies a voltage to the sound generation unit, a second inspection button provided on the buzzer, and a second inspection button And a second discriminating unit that discriminates whether or not the voltage supplied by the voltage supplying unit is equal to or higher than a predetermined value in response to the depression.

  If comprised in this way, the voltage supply state of a voltage supply means will be discriminate | determined by pressing down a 2nd test | inspection button.

  According to a fifth aspect of the present invention, in the configuration of the fourth aspect of the invention, the second determining means includes a lighting means that lights up when the supply voltage is equal to or higher than a predetermined value.

  If comprised in this way, when a supply voltage is more than predetermined value, a lighting means will light.

  According to a sixth aspect of the present invention, in the configuration of the first aspect of the present invention, the whistle has at least two resonance portions having different volumes of the resonance chambers.

  If comprised in this way, the beat sound effect by two resonance parts will arise.

  As described above, according to the first aspect of the present invention, the whistle can always be used, and when the pin is pulled out, a sound is emitted from the buzzer. Therefore, only the whistle can be used, and the buzzer and the whistle can be used simultaneously. It is also possible to do. Moreover, since the sound by a whistle and the sound by a buzzer resonate, if these are used simultaneously, it will become a louder alarm sound and the crime prevention effect will improve more.

  According to the second aspect of the invention, in addition to the effect of the first aspect of the invention, since the operation state of the buzzer can be determined by the first inspection button, the reliability during use is improved.

  In addition to the effect of the invention of claim 2, the invention described in claim 3 makes it possible to efficiently and easily check the sounding means because the sound is emitted by pressing the first inspection button when the sounding means is normal. It becomes possible.

  In addition to the effects of the invention described in claim 2 or claim 3, the invention described in claim 4 determines the voltage supply state of the voltage supply means by depressing the second inspection button, so that reliability during use is improved. More improved.

  According to the fifth aspect of the invention, in addition to the effect of the fourth aspect of the invention, when the supply voltage is equal to or higher than a predetermined value, the lighting means is lit, so that the voltage supply means can be easily checked.

  In addition to the effect of the invention according to any one of claims 1 to 5, the invention according to claim 6 has an effect whistle by two resonance portions, so that an effective whistle that is easier to call attention The crime prevention effect is further improved.

  FIG. 1 is a perspective view showing the appearance of a security alarm according to the first embodiment of the present invention, as seen from the front side, and FIG. 2 is a view of the security alarm from the back side. It is a perspective view.

  With reference to these drawings, the security alarm 11 includes a buzzer 13 and a whistle 15 connected to the buzzer 13. The outer case of the buzzer 13 is formed by an upper case 17 and a lower case 28 each having a disk shape. A speaker 18 is housed in the center of the upper case 17 side, and a cover 19 is attached to cover the speaker 18. A first inspection button 21 is provided on the left side of the cover 19, and a second inspection button 22 is provided on the right side thereof. The function of these inspection buttons will be described later. Further, an LED 23 that is lit under a predetermined condition is exposed above the second inspection button 22. The function of the LED 23 will also be described later.

  On the other hand, as shown in FIG. 2, a clip 29 is rotatably attached to the center of the lower case 28 side of the buzzer 13. The clip 29 is urged toward the lower case 28 by a mechanism (not shown). By comprising in this way, it becomes possible to attach the crime prevention alarm device 11 to a school bag or a trunk belt detachably using the clip 29. FIG. Further, an attachment 30 for passing a string or the like is provided above the clip 29 so that the buzzer can be hung from the neck.

  An insertion hole 32 is formed in the lower portion of the buzzer 13, and a rod-like pin 26 that can be detachably inserted into the insertion hole 32 is attached. A whistle 15 is attached to the outer end side of the pin 26 attached to the buzzer 13 via a ring 25. The detailed structure of the whistle 15 will also be described later.

  Next, the function and structure of the buzzer 13 will be described.

  Inside the buzzer 13 is housed a speaker 18 that constitutes a sound generating means that emits a loud sound when a predetermined voltage or higher is applied as described above. The voltage is configured to be supplied from a power source (not shown) via a switch (not shown). A part of the function of this switch is a pin 26 that can be removably inserted into the buzzer 13. That is, when the pin 26 is inserted into the buzzer 13, the switch is turned off, and no voltage is applied to the speaker 18 and no sound is emitted.

  On the other hand, when a downward force is applied from the buzzer 13 to the pin 26 via the whistle 15 or the like, the pin 26 escapes from the buzzer 13. FIG. 3 is a perspective view showing the external shape of the security alarm 11 showing this state. When the pin 26 is pulled out from the buzzer 13 in this way in an emergency, the switch housed in the buzzer 13 is turned on. As a result, a predetermined voltage is applied to the speaker 18 and a loud sound is generated from the speaker 18. As a result, the emergency state can be notified around.

  When the pin 26 is housed in the buzzer 13 through the insertion hole 32 from the state shown in FIG. 3, the switch changes from the on state to the off state, and the supply of voltage to the sound generation means is stopped. As a result, the sound emitted through the speaker 18 stops.

  Next, functions of the first inspection button 21 and the second inspection button 22 installed in the buzzer 13 will be described.

  As described above, the buzzer 13 contains sound generating means for generating a sound when a predetermined voltage is applied. However, there may be a case where no sound is generated even if a voltage is applied to the sound generation means due to some failure. The function of the first inspection button 21 is to determine whether or not the sounding means is operating normally. That is, when the pin 26 is inserted into the buzzer 13 (when the switch is turned off), when the first inspection button 21 is depressed, the sounding means is activated if the sounding means operates normally. Thus, a certain sound is emitted from the speaker 18. On the other hand, if the sounding means does not operate normally, no sound is generated even when the first inspection button 21 is depressed. In this way, by depressing the first inspection button 21 at the normal time, it becomes possible to determine the operating state of the sounding means housed inside. The activation of the sound generation means means that the voltage of the battery housed using the first inspection button as a switch is supplied to the sound generation means. In this case, a test battery may be prepared separately and the voltage supplied by pressing the first test button. Further, it is preferable that the sound generated by the sound generation means at the time of inspection is smaller than the sound generated at the time of emergency because the influence on the surroundings by the inspection is reduced.

  Next, the function of the second inspection button 22 will be described. As described above, the buzzer 13 stores a battery (not shown). If the battery is exhausted and a predetermined voltage cannot be applied to the sounding means, a sound having a desired volume will not be generated from the sounding means in an emergency. The function of the second inspection button 22 is to check the power consumption state. That is, when the pin 26 is inserted into the buzzer 13 (when the switch is in an OFF state), when the second inspection button 22 is depressed, the lighting means is used when the voltage that can be supplied from the battery exceeds a predetermined value. The LED 23 is configured to light up. On the other hand, when the battery is consumed and the supply voltage is less than the predetermined value, the LED 23 is not lit. This makes it possible to check the battery consumption state during normal operation.

  As described above, it is possible to inspect both the operating state of the sound generation means by the first inspection button 21 and the battery consumption state by the second inspection button 22. Therefore, if you keep in mind to use these inspection buttons every time you have them, you will surely be able to make a loud sound from the buzzer 13 by pulling the pin 26 out of the buzzer 13 in an emergency. Reliability is improved. When the battery is completely exhausted, no sound is generated even when the sounding means operates normally even when the first inspection button is pressed. Therefore, when inspecting the buzzer, it is preferable to start by pressing the second button first, check the degree of battery consumption, and then perform the check using the first inspection button.

  4 is an enlarged perspective view showing the external shape of the whistle 15 shown in FIG. 1, FIG. 5 is a cross-sectional view taken along the line V-V shown in FIG. 4, and FIG. FIG. 7 is a sectional view taken along line -VI, and FIG. 7 is a sectional view taken along line VII-VII shown in FIG.

Referring to these drawings, the whistle 15 is configured around a slightly thin rectangular parallelepiped body portion 34, and the portion opposite to the mouthpiece portion 35 side is decorative and easy to hold the whistle 15. Star-shaped projections are formed for ease. A first resonance chamber 48 and a second resonance chamber 49 are formed inward from the mouthpiece 35 side, and these are partitioned by a partition 46. The length L ₁ of the first resonant chamber 48 length L ₂ of the second resonance chamber 49 are formed in different lengths, are configured to beat sound effect caused by the structure of these resonance chambers . On the mouthpiece part 35 side of the first resonance chamber 48 and the second resonance chamber 49, a core 37 is inserted and fixed in the long groove part 38a and the long groove part 38b so as to be fitted to the partition part 46. As a result, the first air outlet 40 and the second air outlet 41 are formed in the mouthpiece portion 35.

  On the other hand, in the upper part of the first resonance chamber 48, a first singing mouth 51 is formed via a first edge 43. Similarly, a second singing mouth 52 is formed in the upper part of the second resonance chamber 49 via the second edge 44.

  Since the whistle 15 is configured as described above, in use, the mouthpiece portion 35 may be held in the mouth and air may be simultaneously blown into the first air outlet 40 and the second air outlet 41. The air blown from the first blower 40 and the second blower 41 passes through the first edge 43 and the second edge 44 and is discharged outward, thereby causing the first resonance chamber 48 and the second resonance. It is generated as a sound having a natural frequency based on the length of the chamber 49. Since the first resonance chamber 48 and the second resonance chamber 49 have different lengths as described above, sounds having different frequencies are emitted at the same time. Arise. This makes the alarm sound more effective than a whistle having only a single resonance chamber.

  As shown in FIG. 1, the mouthpiece portion 35 of the whistle 15 is always exposed even when the whistle 15 is attached to the buzzer 13 via the pin 26 as usual. . Therefore, it is possible to use only the whistle 15 without pulling the pin 26 out of the buzzer 13. Even if the sound generation means or the battery in the buzzer 13 is faulty, the alarm effect can be exhibited by using only the whistle 15.

  Further, in an emergency, it is possible to pull out the pin 26 from the buzzer 13 by pulling the whistle 15 downward to generate a loud sound from the sound generating means of the buzzer 13 and simultaneously use the whistle 15. . Assuming such a situation, in the security alarm device 11 according to this embodiment, either the natural frequency of the sound generated by the sounding means of the buzzer 13 or the natural frequency of the sound emitted from the whistle 15 is Set to match. Therefore, when the buzzer 13 and the whistle 15 are used at the same time, a larger sound with a high alarm effect is emitted from the entire security alarm 11.

  In the above embodiment, the LED as the lighting means is used as the second determination means, but other means such as generation of a confirmation sound may be used instead.

  Furthermore, in the above embodiment, the whistle has two resonance chambers, but the resonance chamber may be one chamber or three or more chambers.

  Further, in the above embodiment, the whistle is connected to the buzzer via the pin, but the whistle itself may be configured to be freely inserted into the buzzer.

  Further, in the above embodiment, the whistle is connected to the buzzer via the pin. However, the whistle and the buzzer may be integrated so that a removable pin can be inserted into the buzzer separately.

It is the perspective view which showed the external appearance shape of the security alarm device by 1st Embodiment of this invention, Comprising: It is the figure seen from the front side. It is the perspective view seen from the back side of the security alarm device shown in FIG. In the crime prevention alarm device shown in FIG. 1, it is the perspective view which showed the state which pulled out the whistle from the buzzer in emergency. It is the expansion perspective view which showed the external appearance shape of the whistle shown in FIG. It is sectional drawing of the VV line shown in FIG. It is sectional drawing of the VI-VI line shown in FIG. It is sectional drawing of the VII-VII line shown in FIG.

Explanation of symbols

11 ... Security alarm 13 ... Buzzer 15 ... Whistle 18 ... Speaker 21 ... First inspection button 22 ... Second inspection button 23 ... LED
26 ... Pin 35 ... Mouthpiece part 40 ... 1st blower 41 ... 2nd blower 48 ... 1st resonance chamber 49 ... 2nd resonance chamber In addition, the same code | symbol in each figure shows the same or an equivalent part.

Claims (6)

A security alarm,
A buzzer having a sound generation means for inserting a detachable pin and generating a sound in response to an escape operation of the pin;
A whistle connected to the outer end side of the pin at the time of mounting;
A crime prevention alarm device in which a natural frequency of a sound emitted by the whistle substantially coincides with a natural frequency of a sound emitted by the buzzer. A first inspection button provided on the buzzer;
The crime prevention alarm device according to claim 1, further comprising first determination means for determining whether or not the operation of the sound generation means is normal in response to pressing of the first inspection button. The crime prevention alarm device according to claim 2, wherein the first determination means activates the sound generation means when the operation of the sound generation means is normal. Voltage supply means for supplying voltage to the sound generation means;
A second inspection button provided on the buzzer;
The second determination unit according to claim 2, further comprising: a second determination unit configured to determine whether or not a supply voltage by the voltage supply unit is equal to or higher than a predetermined value in response to pressing of the second inspection button. Security alarm. The crime prevention alarm device according to claim 4, wherein the second determination unit includes a lighting unit that lights up when the supply voltage is equal to or higher than the predetermined value. The security alarm according to any one of claims 1 to 5, wherein the whistle has at least two resonance parts having different resonance chamber volumes.

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