JP2018036832A - Alarm - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an alarm capable of improving its appearance.SOLUTION: A gas alarm includes: a sensor part for outputting signals in response to an ambient environment; an alarm part for outputting an alarm to notify an abnormal state; a housing in which the sensor part and the alarm part are housed; a power cord 12 that is provided in a lower case 2b on a back side and receives power supply from a commercial power source; and a winding part 16 that protrudes from the lower case 2b backward and around which the power cord 12 is wound, and that makes a mounting wall control a backward movement of the wound power cord 12.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an alarm device.

  Conventionally, a gas alarm attached to a wall surface has been proposed. Such a gas alarm device includes a battery type and a commercial power source type, and the latter is provided with a power cord on the back side of the alarm device. The power cord is a power line for receiving power supply through an outlet.

  Moreover, since the distance from the outlet to the location where the alarm is installed is not constant in each home, the power cord of the gas alarm is slightly longer. For this reason, in the conventional gas alarm device, when it is attached to each home, etc., an excess length may occur in the power cord. Therefore, a gas alarm provided with a cord reel comprising a winding part that winds the power cord around the back side of the alarm device, and a cord restraining plate that sandwiches and holds the power cord wound around the winding unit together with the back side of the alarm housing. A vessel has been proposed (see Patent Documents 1 to 4).

  In such a gas alarm device, a notch or a hook-shaped cord fixing portion is provided on the cord restraining plate of the cord reel or the back surface of the alarm housing. When the gas alarm is attached to the wall surface, the power cord is unwound from the winding part by the length corresponding to the distance to the outlet. At this time, the power cord is fixed to the cord fixing portion so that the power cord that has not been unwound from the winding portion does not fall apart.

Japanese Utility Model Publication No. 1-96095 JP 2010-33330 A JP-A-8-190683 JP 7-334768 A

  However, the gas alarm devices described in Patent Documents 1 to 4 are provided with a cord reel composed of a winding portion and a cord holding plate on the back side, and therefore between the back surface of the alarm housing and the wall surface. A predetermined amount of gap was generated, and the external appearance of the alarm device seemed to float from the wall surface, which could reduce the appearance.

  This problem is not limited to gas alarms, but is common to fire alarms and gas fire-integrated alarms. This also applies to other alarm devices.

  The present invention has been made to solve such conventional problems, and an object of the present invention is to provide an alarm device capable of improving the appearance.

  The alarm device of the present invention includes a sensor unit that outputs a signal according to the surrounding environment, and an alarm unit that outputs an alarm and notifies the abnormal state when an abnormal state is detected based on the signal from the sensor unit; An alarm device in which the sensor unit and the alarm unit are housed in a housing, the power cord being provided on the back side for receiving power supply from a commercial power source, and the back surface of the housing And a winding portion for projecting rearward from the power cord and winding the power cord and restricting rearward movement of the wound power cord by a mounting wall surface.

  According to this alarm device, it is provided with a winding portion that protrudes rearward from the back surface of the housing and around which the power cord is wound, and this winding portion is configured to restrict the rearward movement of the wound power cord by the mounting wall surface. Therefore, the cord restraining plate is not required, and the alarm device can be brought closer to the mounting wall surface by the thickness of the cord restraining plate, and an alarm device capable of improving the appearance can be provided.

  In the alarm device of the present invention, it is preferable that the alarm device further includes an attachment portion that protrudes backward as much as the winding portion and attaches to the wall surface on the upper side of the housing.

  According to this alarm device, the upper part of the housing is provided with an attachment part for projecting backward as much as the winding part and attaching to the wall surface. Can be attached to the wall. Moreover, since the mounting part protrudes to the rear as much as the winding part, the mounting part has a small protruding amount, making it difficult to attach to the wall surface, or the mounting part has a large protruding amount and the alarm device may float from the mounting wall surface. Can be prevented.

  ADVANTAGE OF THE INVENTION According to this invention, the alarm device which can aim at the improvement of appearance can be provided.

It is a front view which shows the gas alarm device which concerns on embodiment of this invention. It is a rear view which shows the gas alarm device shown in FIG. It is a side view except a partial structure of the gas alarm shown in FIG. It is a rear view except a part of structure of the gas alarm shown in FIG.

  Hereinafter, the present invention will be described according to preferred embodiments. Note that the present invention is not limited to the embodiments described below, and can be appropriately changed without departing from the spirit of the present invention. Further, in the embodiment described below, there is a part where illustration or description of a part of the configuration is omitted, but details of the omitted technology are within a range in which there is no contradiction with the contents described below. Needless to say, known or well-known techniques are applied as appropriate.

  Further, in the following, a gas alarm is shown as an example of an alarm device, but the present invention is not limited to a gas alarm device, and may be another type of alarm device such as a fire alarm device. Furthermore, the type which combined the function of two or more alarm devices, such as a CO alarm device and a fire alarm device, may be used. In addition, the alarm device may have a function of operating in conjunction with another alarm device.

  FIG. 1 is a front view showing a gas alarm device according to an embodiment of the present invention. A gas alarm device 1 shown in FIG. 1 is an alarm device that is driven by electric power from a commercial power source and outputs an alarm that an abnormal state has occurred when an abnormal state such as a gas leak is detected. It is a stationary alarm device attached to. In this embodiment, the battery-type gas alarm device may have a function of detecting an abnormal state due to CO in addition to gas leakage.

  The gas alarm device 1 according to the present embodiment includes a gas sensor (sensor unit), a CPU, a sound output unit (alarm unit) such as a speaker, and a light emitting unit (alarm unit) such as an LED, and these are resin cases. It is the structure covered with the housing | casing 2 which is. The housing 2 is composed of an upper case 2a on the front side and a lower case 2b (see FIGS. 2 to 4) on the back side, and a wiring board having various functional parts is housed therein. Such a housing 2 has a detection unit 4 provided with a gas sensor inside, a notification unit 6 provided with a sound output unit for alarm output, and a status display provided with a light emitting unit inside on the front side. The unit 8 and a stop switch 10 for stopping the alarm at the time of alarm are provided.

  The stop switch 10 functions as an inspection switch when there is no alarm. That is, when the stop switch 10 is operated when no alarm is given, the inspection operation of the gas alarm device 1 is performed. Further, when the gas alarm device 1 is interlocked with another gas alarm device 1, the interlock inspection operation may be performed by operating the stop switch 10 in the other gas alarm device 1. .

  The gas sensor in the detection unit 4 outputs a signal corresponding to the concentration (an example of a signal corresponding to the surrounding environment) when there is a gas to be detected around. In addition to the above sensors, the gas sensor is also provided with a sensor that outputs a signal corresponding to the surrounding carbon monoxide concentration (an example of a signal corresponding to the surrounding environment).

  The CPU controls the entire gas alarm device 1. The sound output unit in the notification unit 6 is configured by a speaker or a buzzer, and when it is determined that a gas leak or a high concentration abnormality of carbon monoxide has occurred, an alarm is output to notify the occurrence of the abnormality. It is. The light emitting unit in the state display unit 8 is for notifying the state of the gas alarm 1, and in this embodiment, the power light emitting unit emits light when the operating power of the gas alarm 1 is supplied. A CO light emitting unit that emits light or blinks when it is determined that a high concentration abnormality of carbon monoxide has occurred, and a gas light emitting unit that emits light or blinks when it is determined that a gas leak has occurred . The light emitting part is constituted by a semiconductor light emitting element.

  FIG. 2 is a rear view of the gas alarm device 1 shown in FIG. 3 is a side view excluding a part of the configuration of the gas alarm device 1 shown in FIG. 1, and FIG. 4 is a rear view of the gas alarm device 1 shown in FIG.

  As shown in FIG. 2, the gas alarm device 1 includes a power cord 12 on the back side. The power cord 12 is a power line for receiving power supply from a commercial power source. Furthermore, as shown in FIGS. 2 to 4, the gas alarm device 1 includes a cord drawing portion 14, a winding portion 16, and a cord fixing portion 18 on the back side.

  The cord lead-out part 14 is provided on the back surface (position at the upper right when viewed from the back) of the casing 2 of the gas alarm device 1 and is used to lead out the power cord 12 from the inside of the gas alarm device 1 to the outside (back side). It is an opening. A cord passage 2c that is slightly recessed from the lower case 2b is formed on the rear surface of the housing 2 so that the power cord 12 is routed.

  The winding portion 16 is a protruding portion that protrudes rearward from the back surface (that is, the lower case 2b) of the housing 2, and in the present embodiment, is formed to have an oval shape that is slightly vertically long at the center of the back surface. ing. The power cord 12 may have a surplus length when the gas alarm device 1 is attached to each household. The winding portion 16 can wind the power cord 12 for such an excessive length.

  The cord fixing portion 18 is a portion to which the power cord 12 is hooked so that the power cord 12 wound around the winding portion 16 is not loosened. It is formed in a bowl shape. The height of the gap C between the hook-shaped portion 18 a of the cord fixing portion 18 and the back surface of the housing 2 is slightly smaller than the thickness of the power cord 12. For this reason, the power cord 12 can be fixed to the cord fixing portion 18 by press-fitting the power cord 12 into the gap C. Further, the protruding amount of the cord fixing portion 18 is smaller than the protruding amount of the winding portion 16, and it is difficult to interfere with the mounting wall surface.

  More specifically, the winding portion 16 includes a top plate 16a, first and second openings 16b and 16c, and a lock portion 16d. The top plate 16 a is a plate material parallel to the back surface of the housing 2. The first opening 16b is used to pull out the power cord 12 drawn to the back side from the cord lead-out portion 14 and under the top plate 16a (in front of the gas alarm 1 with respect to the top plate 16a) onto the top plate 16a. It is a part. The 2nd opening 16c is a site | part for making the power cord 12 pulled out on the top plate 16a through the 1st opening 16b enter under the top plate 16a again. The power cord 12 is bent by being inserted into the first and second openings 16b and 16c, and is also fixed to the winding portion 16 by a bent structure. Therefore, the first and second openings 16 b and 16 c constitute a fixing portion of the power cord 12 in the winding portion 16.

  In addition, in this embodiment, the winding part 16 is a different body from the housing 2 side, and has a structure that is fixed to the housing 2 via a lock portion 16d. In addition, the winding part 16 may be integrated with the housing | casing 2 (lower case 2b) not only in another body.

  In addition, in the example shown in FIG. 2, the power cord 12 is fixed to the winding part 16 through the first and second openings 16b and 16c, but the present invention is not limited to this, and the first and second openings 16b and 16c You may wind around the side surface of the oval winding part 16 directly from the code | cord | leading part 14 without being penetrated.

  Moreover, the gas alarm device 1 includes an attachment portion 20 for attaching the gas alarm device 1 to the wall surface on the upper side of the housing 2. The mounting portion 20 includes a plate member 20a having a substantially trapezoidal outer shape when viewed from the front. An opening 20b is formed in the substantially trapezoidal plate material 20a. The opening 20b includes a lower wide portion 20c and an upper narrow portion 20d, and the wide portion 20c and the narrow portion 20d are connected to each other. A hook-shaped metal fitting is attached to the wall surface. The gas alarm device 1 is attached to the wall surface in a state in which the metal fitting is inserted into the wide portion 20c and moved to the narrow portion 20d by free fall when the wall surface is attached, and blurring in the left-right direction is prevented.

  Furthermore, as shown in FIG. 3, the attaching portion 20 has a rearward projecting amount that is approximately the same as that of the winding portion 16. Thereby, the situation where the winding part 16 which protrudes back becomes obstructive and it becomes difficult to attach to a wall surface is prevented.

  Next, a wall surface mounting method of the gas alarm device 1 according to the present embodiment will be described. First, the gas alarm device 1 according to the present embodiment is shipped in a state in which the power cord 12 is fixed to the winding portion 16 and wound. At the time of shipment, the end side of the power cord 12 (the end side on the outlet side) may be fixed to the cord fixing portion 18 so as not to be separated, or the power cord 12 itself is fixed by another member. It may be kept from falling apart.

  An operator attaches a hook-shaped metal fitting to the wall surface when the gas alarm device 1 is attached. Next, the operator unwinds the power cord 12 from the winding portion 16 by a predetermined amount. At this time, the operator unwinds the power cord 12 by a length corresponding to the distance from the attachment location to the outlet. Next, after fixing the power cord 12 to the cord fixing portion 18, the worker attaches the gas alarm device 1 to the wall surface by hooking the attachment portion 20 on the metal fitting.

  In this case, there is a concern that the power cord 12 wound around the winding portion 16 may fall off from the winding portion 16, but since there is a wall surface behind the winding portion 16, the power cord 12 Dropping off due to backward movement of the is regulated by the wall surface. Further, depending on the amount of rearward protrusion of the winding portion 16, the power cord 12 is sandwiched between the back surface and the wall surface of the housing 2, and the winding portion 16 of the power cord 12 is further fixed.

  In this way, according to the gas alarm device 1 according to the present embodiment, the winding device 16 includes the winding portion 16 that protrudes rearward from the back surface of the housing 2 and is wound with the power cord 12. Further, since the rearward movement of the power cord 12 is restricted by the mounting wall surface, the cord pressing plate is not required, and the gas alarm device 1 can be brought closer to the mounting wall by the thickness of the cord pressing plate, thereby improving the appearance. It is possible to provide a gas alarm device 1 that can be used.

  In addition, since the mounting portion 20 is provided on the upper side of the housing 2 so as to protrude rearward as much as the winding portion 16 and is attached to the wall surface, the gas alarm 1 is attached in the same manner as the mounting portion provided on the cord holding plate. Can be attached to the wall. Moreover, since the mounting portion 20 protrudes rearward to the same extent as the winding portion 16, the mounting portion 20 has a small protruding amount, making it difficult to attach to the wall surface, or the mounting portion 20 has a large protruding amount and the gas alarm 1 is It is possible to prevent a situation where the surface is lifted from the mounting wall surface.

  As described above, the present invention has been described based on the embodiments, but the present invention is not limited to the above-described embodiments, and may be modified without departing from the spirit of the present invention, and may be appropriately changed within a possible range. These techniques may be combined.

  For example, in the above embodiment, the gas alarm device has been described as an example. However, the present invention is not limited to the gas alarm device, and may be another type of alarm device such as a fire alarm device, a CO alarm device, a fire alarm device, or the like. It may be of a type that combines the functions of two or more alarm devices such as an alarm device. In addition, the alarm device may have a function of operating in conjunction with another alarm device.

1: Gas alarm device 2: Housing 2a: Upper case 2b: Lower case 2c: Cord passage 4: Detection unit 6: Notification unit 8: Status display unit 10: Stop switch 12: Power cord 14: Cord lead-out unit 16: Winding Attached portion 16a: top plate 16b: first opening 16c: second opening 16d: lock portion 18: cord fixing portion 18a: saddle-shaped portion 20: mounting portion 20a: plate material 20b: opening 20c: wide portion 20d: narrow portion C : Gap

Claims (2)

A sensor unit that outputs a signal according to the surrounding environment, and an alarm unit that outputs an alarm to notify the abnormal state when an abnormal state is detected based on a signal from the sensor unit, and the sensor unit And the alarm unit housed in a housing,
A power cord provided on the back side for receiving power from a commercial power source;
A winding portion that protrudes rearward from the back surface of the housing and winds the power cord, and restricts rearward movement of the wound power cord by an attachment wall surface;
An alarm device comprising: The alarm device according to claim 1, further comprising an attachment portion that protrudes rearward as much as the winding portion and attaches to a wall surface on an upper side of the housing.

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