JP2010079461A - Alarm - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an alarm of excellent operability from which a pull string is eliminated to improve appearance. <P>SOLUTION: In the alarm A, a body part 1 having a detection part 3 for detecting environmental abnormality, fixed to an installation face H is covered with a cover body 2 connected to the body part 1. The body part 1 and the cover body 2 are detachably connected by locking corresponding lock parts 4, the cover body 2 is provided with a push switch 5, and the body part 1 is provided with: a projecting part 6 for pushing the push switch 5; and an elastic support means 7. When performing push operation of the cover body 2, the push switch 7 is pushed by the projecting part 6. When the push operation of the cover body 2 is released, the projecting part 6 is returned to a former position to release the push of the push switch 5. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an alarm device having a structure in which a main body is attached to be covered with a cover body.

  Conventionally, it has a detection unit for detecting environmental abnormalities, such as a fire alarm, a gas alarm, an air pollution alarm, etc., and a main unit fixed to a mounting surface such as a ceiling or a wall. There is known an alarm device having a structure that is covered with a cover body that is coupled to (see, for example, Patent Document 1).

  Such an alarm device detects the temperature or concentration of air around the detection unit by the detection unit, and immediately connects to the detection unit when an environmental abnormality such as exceeding a set temperature or concentration occurs. A warning sound, such as a buzzer, is emitted to inform the surroundings of dangers such as fire and gas leaks.

  However, these alarm devices generally have high sensitivity of the detection unit in order to prevent fires, etc., so that the detection unit reacts even with smoke such as cigarettes and grilled fish, for example. Often it sounds.

For this reason, the conventional alarm device has a structure in which the alarm sound is released (off state) by directly pressing the inspection switch provided on the outer surface of the alarm device, and the alarm state can be restored by releasing the inspection switch. There is a built-in switch part that can turn on and off the alarm sound inside the main body part, and by hanging a pull string linked to this switch part outside the alarm device, the alarm sound is mistakenly sounded. In such a case, the pulling string is pulled down to release the alarm sound (off state), and when the pulling string is released, the original alarm state can be restored.
JP 2008-52556 A

  However, the conventional alarm device has the following problems.

  That is, in an alarm device that releases the alarm sound by directly pressing the inspection switch (off state), the inspection button becomes small due to a limitation in the dimensions for providing on the outer surface of the alarm device. When the instrument is installed on a ceiling or high wall, it is very difficult to push the inspection button with a stick etc., so it is necessary to push the inspection button using a tripod, etc. There was a problem that the nature was bad.

  On the other hand, in the alarm device that lowers the pull string and releases the alarm sound (OFF state), it is not necessary to use the tripod or the like, but in such an alarm device, the pull string is always hanging from the alarm device. Because it is installed, it has been difficult to adapt to the architectural interior designed in recent years, and it has a problem of poor appearance.

  An object of the present invention is to solve such a problem, and to provide an alarm device that can improve the appearance by eliminating the pulling string of the alarm device and is excellent in operability.

To achieve the purpose,
The alarm device according to claim 1 includes a main body portion fixed to the mounting surface and a cover body attached so as to cover the main body portion, and the main body portion or the cover body is provided for detecting an environmental abnormality. A detection unit and a pressing switch for performing an operation such as an alarm stop, and the cover body is movably locked in the direction of the main body by receiving the pressure, and when the cover body is pressed, The structure is such that the push switch is pushed.

  An alarm device according to a second aspect is the alarm device according to the first aspect, wherein the main body portion and the cover body are coupled to each other by engaging corresponding locking portions, and the cover body is provided with a push switch, The main body is provided with a protrusion for pressing the pressure switch and an elastic support means. When the cover body is pressed, the pressure switch is pressed by the protrusion, while the cover body When the pressing operation is released, the protrusion is returned to its original position to release the pressing of the pressing switch.

  According to a third aspect of the present invention, there is provided the alarm device according to the first aspect, wherein the main body portion is configured by combining a base portion fixed to the mounting surface and a detection portion for detecting an environmental abnormality, and covers the main body portion. The head body is provided with a pressure switch, and the cover body is provided with a protrusion for pressing the pressure switch and elastic support means, and the cover When the body is pressed, the protrusion is pressed with the pressing switch, and when the pressing operation of the cover body is released, the protrusion is returned to the original position to release the pressing of the pressing switch. It has a structure.

  According to a fourth aspect of the present invention, in the alarm device according to the third aspect, the base portion is provided with a clamping piece for clamping and coupling the head portion.

  An alarm device according to a fifth aspect is the alarm device according to the third or fourth aspect, wherein one end of the cover body is pivotally attached to the main body portion, and the main body portion is provided between the cover body and the main body portion. A space through which air flows is formed in the provided detection unit.

  The alarm device according to a sixth aspect of the present invention is the alarm device according to any one of the first to fifth aspects, wherein when the cover body is pressed, the alarm is contracted, and when the pressing operation of the cover body is released, the protrusion is returned to the original position. Elastic support means is provided for releasing the pressure of the pressure switch by returning to elasticity.

  The present invention has the following effects.

  According to the alarm device of the first aspect, since the push switch can be pushed only by pressing the cover body, it is possible to improve the appearance without using a conventional drawstring, and Because it is a simple operation that only requires pressing, it has excellent operability.

  According to the alarm device according to claims 2 and 3, the pressing switch can be pressed by the protrusion only by pressing the cover body. On the other hand, if the hand is released from the cover body, the cover body and the pressing switch can be pressed. Is returned to its original position, and the pressing of the pressing switch can be released.

  Therefore, it is possible to improve the appearance without using a conventional drawstring, and the operability is also excellent because it is a simple operation that simply presses the cover body.

  According to the alarm device of the fourth aspect, since the base part is provided with the clamping piece for clamping and coupling the head part, the main body part with the cover body is removed from the base part for easy internal inspection. The battery can be easily replaced.

  According to the alarm device according to claim 5, one end of the cover body is pivotally attached to the main body portion, and a space in which air flows between the cover body and the main body portion to the detection portion provided in the main body portion. Therefore, the detection unit can reliably detect the inflow of smoke and temperature detection.

  According to the alarm device of the sixth aspect, when the cover body is pressed, the cover body is contracted, and when the cover body is released from the pressing operation, the protrusion is elastically returned to the original position, and the pressure switch Since the elastic support means for releasing the pressure is provided, the cover body is surely elastically returned to the original position by the elastic support means when the hand is released from the cover body, thereby further improving the operability. it can.

  Hereinafter, the alarm device A according to the present invention will be described with reference to the drawings.

  FIGS. 1A and 1B are cross-sectional views showing an operating state of an embodiment of the alarm device A according to the present invention, where FIG. 1A shows an OFF state of a push switch, and FIG. The ON state of the push switch is shown.

  This alarm device A is composed of a main body 1 fixed to the mounting surface H and a cover body 2 attached so as to cover the main body 1. The main body 1 or the cover body 2 detects an environmental abnormality. And a pressing switch 5 for performing an operation such as an alarm stop, and the cover body 2 is movably locked in the direction of the main body 1 by receiving the pressure and presses the cover body 2 When operated, the push switch 5 is pushed and operated. Specifically, the detection unit 3 for detecting an environmental abnormality is provided inside the cover body 2 and is fixed to a mounting surface H such as a ceiling. The main body portion 1 can be employed as various alarm devices such as a fire alarm, a gas alarm device, and an air contamination alarm device having a structure in which the main body portion 1 is covered with a cover body 2 coupled to the main body portion 1.

  The main body 1 and the cover body 2 are detachably coupled with the corresponding locking portions 4, and the cover body 2 is provided with a push switch 5. Is provided with a protrusion 6 for pressing the push switch 5 and an elastic support means 7.

  Hereinafter, each member will be described in detail.

  The main body 1 is formed in a bottomed cylindrical shape with a wall 12 projecting downwardly around a mounting plate 11 that is in close contact with a mounting surface H such as a ceiling. The shape of the main body 1 may be any of a cylindrical shape, a polygonal shape, and the like, and is not limited to the shape.

  A rod-shaped protrusion 6 projects downward from the approximate center of the mounting plate 11, and elastic support means 7 such as a coil spring is extrapolated to the protrusion 6.

  Further, an attachment hole 14 for fixing the main body 1 to the attachment surface H with a screw 13 or the like is provided at an appropriate position of the attachment plate 11.

  A locking claw 4a projecting inward is formed at the lower end of the wall portion 12, and the locking portion 4 is constituted by both the locking claw 4a and the locking claw 4b formed on the cover body 2 side. The main body 1 and the cover body 2 are made detachable by engaging and disengaging these locking claws 4a and 4b.

  Ventilation holes 12a are provided at appropriate positions on the wall portion 12. Through the ventilation holes 12a, the outside air can be smoothly ventilated into the main body portion 1, and the detection portion 3 disposed in the main body portion 1 is provided. Therefore, it is possible to detect an environmental abnormality of the outside air.

  On the other hand, the cover body 2 is provided with a wall portion 22 standing upward around the lower surface portion 21 formed in an arc shape, and further through a step portion 22a recessed inward from the upper end of the wall portion 22. A wall portion 22 is extended upward, and a locking claw 4b is projected from the upper end of the wall portion 22 toward the outside. In addition, the shape of the cover body 2 is not limited to the shape like the main body 1.

  Further, in this embodiment, the alarm device A having a structure in which the cover body 2 completely covers the main body portion 1 from below is illustrated, but the cover body 2 completely covers the main body portion 1 in this way. Even if it is not a structure, for example, a structure in which the cover body 2 covers a part of the main body 1 may be used.

  Various devices are installed inside the cover body 2. In this embodiment, a speaker or a buzzer 8 that sounds an alarm sound is installed on the inner bottom of the cover body 2. A substrate 9a connected to a battery unit 9 such as a battery is disposed.

  On the substrate 9a, the detection unit 3 for detecting an environmental abnormality is installed, and at the position corresponding to the protrusion 6, the pressing switch 5 is arranged with the switch unit 51 facing upward. Yes.

  Note that a control unit (not shown) that generates an alarm signal based on a detection signal from the detection unit 3 is installed on the substrate 9a.

  Further, the upper surface of the cover body 2 is substantially closed by a plate-like lid body 10, and a through-hole 10 a through which the rod-like protrusion 6 can penetrate is formed in the lid body 10 at a vertical position of the switch portion 51. Opened.

  Further, the lid 10 is provided with a through window 10b through which the detection unit 3 standing on the substrate 9a can penetrate, and the detection unit 3 protrudes from the through window 10b to detect an environmental abnormality of the outside air. I have to.

  In addition, the opening part 10c for replacing the battery part 9 is opened in the position corresponding to the battery parts 9, such as a battery.

  The alarm device A configured as described above can be obtained by fixing the main body 1 with a screw 13 or the like at an appropriate position on the mounting surface H such as a ceiling and then pushing the cover body 2 from below the main body 1. The locking claw 4b protruding to 2 is fitted inside while releasing the locking claw 4a of the main body 1 so that the main body 1 and the cover body 2 can be integrated.

  Further, in order to smoothly fit the locking claw 4b and prevent the cover body 2 that has been fitted from coming off from the main body 1, the locking claw 4a and 4b are provided with arrow heads in opposite directions as shown in the figure. It is preferable to form it in a shape.

  The alarm device A attached in this way can immediately sound an alarm sound such as a buzzer 8 connected to the detection unit 3 when an environmental abnormality occurs to notify the surroundings of a danger such as a fire or gas leak.

  On the other hand, as shown in FIG. 1 (a), if the alarm sound is to be canceled (off state), as in the case where an alarm sound is accidentally sounded, the cover body 2 is pressed from below as shown in FIG. 1 (b), the elastic support means 7 is contracted and urged by the lid body 10 of the cover body 2, and the switch portion 51 of the push switch 5 is pushed and pressed by the tip of the projection portion 6. The switch 5 is turned on and the alarm sound can be easily released.

  When the pressing operation of the cover body 2 is released, the protrusion 6 is returned to the original position by the elastic restoring force of the elastic support means 7 as shown in FIG. It is in the off state after canceling, and it is possible to detect the danger such as fire and gas leak again.

  In the present embodiment, the alarm device A having a structure in which the cover body 2 is returned to the original position by the elastic restoring force of the elastic support means 7 is illustrated, but without the elastic support means 7, for example, The alarm device A may have a structure in which the cover body 2 is returned to the original position by the weight of the cover body 2 and the pressing of the switch 5 is released.

  In this embodiment, if the cover body 2 is pressed, the pressure switch 5 is pressed and turned on, and if the cover body 2 is released, the pressure switch 5 is released and turned off. The press switch 5 has been described. However, the ON / OFF state may be switched alternately each time the press switch 5 is pressed.

  FIG. 2 is an exploded perspective view showing another embodiment of the alarm device A according to the present invention. 3A and 3B are cross-sectional views showing the operating state of the alarm device A shown in FIG. 2, wherein FIG. 3A shows the OFF state of the press switch, and FIG. 3B shows the ON state of the press switch. Is shown.

  The alarm device A of the present embodiment is configured such that a head portion 1b having a detection portion 3 for detecting an environmental abnormality is coupled to a base portion 1a fixed to a mounting surface H to constitute a main body portion 1, and the main body 1 A so-called three-piece alarm device A having a structure in which the part 1 is covered with a cover body 2, and a press switch 5 is provided on the head part 1 b and the pressure switch 5 is pressed on the cover body 2. Projecting portion 6 and elastic support means 7 are provided.

  Here, parts common to those in FIG. 1 are denoted by the same reference numerals and redundant description is omitted, and only the features of the present embodiment will be described below.

  That is, the main body 1 of this embodiment is composed of a base portion 1a and a head portion 1b. The base portion 1a is fixed to a mounting surface H such as a ceiling with screws 13 or the like, and the head portion 1b is attached to the base portion 1a. Detachable.

  Specifically, a substantially L-shaped sandwiching piece 15 that sandwiches and joins the head portion 1b is provided below both side ends of the base portion 1a, and the tip portions 15a of these sandwiching pieces 15 are connected to the head portion. The base portion 1a and the head portion 1b can be coupled to each other by sliding and fitting into a receiving groove 16 formed on the inner wall of 1b. Of course, the base portion 1a and the head portion 1b can be separated by sliding the tip 15a of the clamping piece 15 away from the receiving groove 16 of the head portion 1b in the reverse direction.

  Therefore, without removing the base portion 1a fixed to the mounting surface H, only the main body portion 1b attached with the cover 2 can be easily removed, and the main body portion 1 can be easily inspected and repaired. In particular, replacement of the battery 9 such as a battery can be easily performed.

  The head portion 1a includes a substrate 9a, and the substrate 9a is provided with a pressing switch 5 with the switch portion 51 facing downward.

  Furthermore, the detection part 3 is projected downward on the substrate 9a, and the detection part 3 protrudes below the head part 1b through the through window 10b so that an environmental abnormality of the outside air can be detected. Each member such as a battery 9 such as a battery and a buzzer 8 is also provided in the head portion 1b.

  The cover body 2 is formed in a substantially plate shape, one end of which is pivotally attached to the main body 1, and air flows between the cover body 2 and the main body 1 to the detection unit 3 provided in the main body 1. A space S is formed.

  Therefore, the detection unit 3 can reliably come into contact with the outside air through the space S, and the surrounding environmental abnormality can be reliably detected.

  Further, as shown in this embodiment, if the bearing portion 25 is formed at one end of the head portion 1b and the cover body 2 and a shaft member (not shown) such as a rivet is passed through both the bearing portions 25, the cover body 2 Is rotatable about the shaft member (not shown), and one end of the cover body 2 can be pivotally attached to one end of the head portion 1b.

  On the other hand, at the other end of the cover body 2, the locking claw 4 b ′ is erected upward, and the locking claw 4 a ′ detachably engageable with the locking claw 4 b ′ is provided at the other end of the head portion 1 b. And the downward rotation of the cover body 2 is restricted by the locking claws 4a ′ and 4b ′.

  Further, a rod-like projection 6 is erected on the cover body 2 at a vertical position of the switch 51 provided in the head 1b, and an elastic support means 7 such as a coil spring is extrapolated to the projection 6. .

  In addition, a through hole 10a through which the rod-like protrusion 6 can pass is formed on the lower surface of the head portion 1b.

  In the alarm device A configured as described above, the base portion 1a is fixed to an appropriate position on the mounting surface H such as a ceiling with a screw 13 or the like, and the head portion 1b of the head portion 1b is directed toward the sandwiching piece 15 of the base portion 1a. The head portion 1b can be integrated and easily attached to the base portion 1a simply by sliding the receiving groove 16 and fitting.

  The alarm device A attached in this way can immediately sound an alarm sound such as a buzzer 8 connected to the detection unit 3 when an environmental abnormality occurs to notify the surroundings of a danger such as a fire or gas leak.

  On the other hand, as shown in FIG. 3 (a), if the alarm sound is to be canceled (off state) as in the case where the alarm sound is accidentally sounded, the cover body 2 is pressed from below as shown in FIG. 3 (b), the elastic support means 7 is contracted and urged by the cover body 2 and the head portion 1b, and the switch portion 51 of the push switch 5 is pushed by the tip of the projection portion 6. The push switch 5 is turned on, and the alarm sound can be easily released.

  When the pressing operation of the cover body 2 is released, the protrusion 6 is returned to the original position by the elastic restoring force of the elastic support means 7 as shown in FIG. It is in the off state after canceling, and it is possible to detect the danger such as fire and gas leak again.

  In the present embodiment, the alarm device A having a structure in which the cover body 2 is returned to the original position by the elastic restoring force of the elastic support means 7 is illustrated, but without the elastic support means 7, for example, The alarm device A may have a structure in which the cover body 2 is returned to the original position by the weight of the cover body 2 and the pressing of the switch 5 is released.

  As described above, according to the alarm device A of the present invention, as described in the first and second embodiments, the pressing switch 5 can be pressed by the protruding portion 6 only by pressing the cover body 2, while the cover body When the hand 2 is released, the cover body 2 and the pressing switch 5 are elastically returned to their original positions by the elastic support means 7 so that the pressing of the pressing switch 5 can be released.

  Therefore, it is possible to improve the appearance of the entire alarm device A by eliminating the conventional drawstring, and further, by simply pressing the cover body 2, the on / off operation of the push switch 5 can be performed. Excellent operability.

  As described above, according to the present invention, the entire cover body 2 that covers the main body 1 serves as an operation switch that pushes the push switch 5, so that the push operation becomes very easy and even when attached to a high place. For example, it can be easily pushed by striking with a stick or throwing an object, and there is no need to provide a drawstring that impairs aesthetics.

  In particular, in the shapes of the first and second embodiments, the entire front surface (lower surface) of the alarm device A can be pushed, so that the operation surface of the operation switch can be maximized and can be operated easily.

(A), (b) is sectional drawing which shows the operation state which showed one Example of the alarm device A which concerns on this invention, (a) shows the OFF state of a press switch, (b) is a press switch. Indicates the on state. It is the disassembled perspective view which showed the other Example of the alarm device A which concerns on this invention. It is sectional drawing which shows the operation state of the alarm device A shown in FIG. 2, (a) shows the OFF state of a press switch, (b) has shown the ON state of the press switch.

Explanation of symbols

A Alarm H Mounting surface S Space 1 Body portion 1a Base portion 1b Head portion 15 Nipping piece 2 Cover body 3 Detection portion 4 Locking portion 5 Press switch 6 Protruding portion 7 Elastic support means

Claims (6)

The main body is fixed to the mounting surface, and the cover is attached to cover the main body.
The main body or the cover body includes a detection unit for detecting an environmental abnormality, and a push switch for performing an operation such as an alarm stop,
An alarm device characterized in that the cover body is locked so as to be movable in the direction of the main body by receiving a pressure, and when the cover body is pressed, the pressing switch is pressed. In claim 1,
The main body portion and the cover body are coupled by engaging corresponding locking portions, and the cover body is provided with a pressing switch, and the main body portion has a protrusion for pressing the pressing switch. Part
When the cover body is pressed, the projection switch presses the pressure switch. On the other hand, when the cover body is released, the projection is returned to the original position to press the pressure switch. An alarm device characterized by a structure to be released. In claim 1,
The body part is configured by combining a base part fixed to the mounting surface and a head part provided with a detection part for detecting environmental abnormalities, and is attached so as to cover the body part with a cover body,
The head portion is provided with a pressing switch, and the cover body is provided with a protrusion for pressing the pressing switch,
When the cover body is pressed, the projection switch presses the pressure switch. On the other hand, when the cover body is released, the projection is returned to the original position to press the pressure switch. An alarm device characterized by a structure to be released. In claim 3,
An alarm device provided with a clamping piece for clamping and coupling the head part to the base part. In either claim 3 or 4,
An alarm device in which one end of the cover body is pivotally attached to the main body portion, and a space is formed between the cover body and the main body portion so that air flows through a detection portion provided in the main body portion. In any one of Claims 1-5,
When the cover body is pressed, it is contracted, and when the cover body is released, an elastic support means is provided for releasing the pressure of the pressure switch by elastically returning the protrusion to the original position. Alarm.

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