JP2010033330A - Alarm - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an alarm which makes it possible to adjust the length of a power cord when the power cord is pulled out from a power cord winding part. <P>SOLUTION: The alarm, which is installed on a wall in a monitoring area and detects abnormality in the monitoring area to raise the alarm, includes: corner hooks 21-24 which are provided at the four corners of the nearly rectangular back face of a back case 13 which constitutes the alarm body; a back face plate 18 which is provided on the back face side of the back case 13 and includes two engaging parts 18a, 18b which are used for installing the alarm 11 on the wall and form an angle of 90° with each other; middle part hooks 25, 26 which are provided in the vicinities of the middles of the sides which respectively face the engaging parts 18a, 18b of the back face of the back case 13; a cord winding part 19 which is formed between the back face side of the back case 13 and the back face plate 18; and a power cord 30 which is wound around the cord winging part 19 and is engaged with either the corner hooks 21-24 or the middle part hooks 25, 26 to be pulled out. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an alarm device such as a fire alarm device, and more particularly to an improvement in storage and routing of a power cord in an AC power type alarm device.

  For AC power system alarms such as fire alarms installed in residential kitchens, the back side of the power cord that winds up to the outlet and the power cord that exits the winder are fixed. With hooks.

FIG. 7 is a rear view showing an appearance of a conventional AC power supply type alarm device. In FIG. 7, the alarm device 1 is formed between a back plate 4 provided on the back surface of the substantially rectangular alarm device body 3 and the back surface of the alarm device body 3, and is wound with a cord around which an extra power cord 7 is wound. A take-up portion 5 and fixing hooks 9a, 9b, 9c, 9d for fixing the power cord 7 coming out of the cord winding portion 5 are provided. The fixing hooks 9a, 9b, 9c, 9d are located above, below, left, and right of the back surface of the alarm body 3 so as to protrude outside the cutout openings 10a, 10b, 10c, and 10d. Are provided at a plurality of locations. The power cord 7 is taken out from an arbitrary notch 10 at a location selected so that the wiring to the location of the outlet (not shown) is short and inconspicuous, and is hung on the fixing hook 9 at that location, thereby It is routed from above, below, left, and right of the main body 3.
JP-A-8-190683

  However, in the above-described conventional alarm device, the notch 10 and the fixing hook 9 are provided at one location near the center of each of the upper, lower, left, and right sides of the rectangular alarm body 3. The length of the power cord 7 routed from the notch 10 and the fixing hook 9 selected so that the routing to the outlet location is short and inconspicuous can not be adjusted. It must be drawn in a slack state, which may impair the aesthetics of the room.

  In view of the above-described problems, an object of the present invention is to provide an alarm device capable of adjusting the length when the power cord is pulled out from the power cord winding portion.

  The invention according to claim 1, which is made to solve the above-mentioned problem, is an alarm device that is installed on a wall of a monitoring area, detects an abnormality in the monitoring area, and notifies an alarm, and constitutes an alarm body. Corner hooks 21 to 24 provided at the four corners of the substantially rectangular back surface of the back case 13, and two latches provided on the back side of the back case 13 for installing the alarm device 11 on the wall A back plate 18 formed so that the portions 18a and 18b form an angle of 90 degrees with each other, and an intermediate hook provided near the middle of the back surface of the back case 13 facing the locking portions 18a and 18b. 25, 26, a cord winding part 19 formed between the back side of the back case 13 and the back plate 18, and the cord winding part 19 wound around the corner hooks 21 to 24 or the intermediate part hook Characterized in that it includes a power cord 30 to be locked in withdrawn in any of 5,26.

  In order to solve the above problem, the invention according to claim 2 is the alarm device according to claim 1, wherein the outer surface of the back plate 18 is between the corner hooks 21 to 24 and the power cord 30. The corner hooks 21 to 24 or the intermediate hooks 25 and 26 that are formed so as to generate a gap that can be folded back and are not used to lock the power cord 30 are used when the power cord 30 is folded back. It functions as a cord storage guide.

  In order to solve the above-mentioned problems, the invention according to claim 3 is the alarm device according to claim 2, wherein the power cord 30 is a VFF type cord, and the corner hooks 21 to 24 are the VFF type cord. The intermediate hooks 25 and 26 each have a locking groove for locking the VFF type power cord 30 in the vertical direction.

  Note that the reference numerals in the description of the means for solving the above-described problems correspond to the reference numerals of the constituent elements in the following description of the embodiments of the invention, but these limit the interpretation of the claims. Not what you want.

  According to the present invention, since two or more power cord fixing hooks are provided for each side at the substantially rectangular four corners and the middle portion of the back case constituting the alarm body, the power source connected to the outlet The lead-out position of the cord can be adjusted. In addition, there is a space (space) between the outer shape of the back plate that forms the cord winding part and the corner hooks, so that the power cord can be folded back and pulled out. The length can be adjusted appropriately.

  Hereinafter, embodiments of an alarm device of the present invention will be described with reference to the drawings. In this embodiment, a case where the present invention is applied to an AC power supply type fire alarm will be described.

  1A and 1B are views showing an external appearance of an alarm device according to an embodiment of the present invention. FIG. 1A is a rear view, FIG. 1B is a bottom view, and FIG. 2 is a rear perspective view. The alarm device 11 is formed in a substantially rectangular shape, is installed on the wall of the monitoring area, detects an abnormality in the monitoring area, and notifies an alarm. In addition, the monitoring area | region has shown the room, range, etc. which are the installation locations which can monitor the fire of an alarm device.

  The fire alarm 11 includes a resin front case 12 and a back case 13 that constitute a hollow box-shaped alarm main body, a sensor case 14, and a panel 15 that covers the sensor case 14. The sensor case 14 includes a mesh member having a large number of gaps that can be ventilated around it, and a fire sensor (not shown) is disposed therein. A pull string 16 for turning on / off a check switch (not shown) is disposed at the bottom of the alarm device main body, and a knob 17 formed of resin is attached to the tip thereof.

  The back surface of the back case 13 is substantially rectangular, and a back plate 18 is provided. A bobbin for winding a flat vinyl cord (VFF) type power cord 30 between the back surface of the back case 13 and the back case 13. A cord winding portion 19 is formed. The back plate 18 is formed with locking portions 18a and 18b having locking holes for engaging with screws or the like on the wall. The locking portions 18a and 18b are formed so as to form an angle of 90 degrees with each other in the vicinity of the center of the back side of the back case so that the alarm device 11 can be hung on the wall in either the vertical type or the horizontal type. In the example of FIG. 1, the back plate 18 is provided on the upper side and the left side.

  Corner hooks 21, 22, 23, 24 for locking the power cord are integrally formed in the vicinity of the four corners of the rectangular back surface of the back case 13, and are opposed to the locking portions 18 a and 18 b of the back plate 18. Near the center of the back side of the back case 13, intermediate hooks 25 and 26 for locking the power cord are integrally formed. The corner hooks 21, 22, 23, 24 are respectively formed with locking grooves 21 a, 22 a, 23 a, 24 a for horizontally locking the power cord 30, and the intermediate hooks 25, 26 are respectively Locking grooves 25a and 26a for vertically locking the power cord 30 are formed.

  The outer shape of the back plate 18 has a shape in which gaps (spaces) in which a power cord 30 described later can be folded are formed between the corner hooks 21, 22, 23, and 24 at the four corners.

  Next, an example of drawing out the power cord 30 in the alarm device having the above configuration will be described.

  (Drawing Example 1) FIG. 1A shows a case where the power cord 30 is pulled out from the lower left corner hook 23. In this example, when the alarm unit 11 is hung on the wall using the locking portion 18a, the outlet is suitable when the outlet exists in the lower right or right side direction of the alarm unit 11. In this case, the power cord 30 is unwound from the cord winding portion 19 according to the distance to the outlet, and the cables 30a and 30b of the power cord 30 are connected to the locking grooves of the corner hook 23 as shown in FIG. 23a is pulled sideways and pulled out.

  (Drawing Example 2) FIG. 3 shows a case where the power cord 30 is pulled out from an intermediate hook 25 provided in the middle of the side facing the locking portion 18a. In this example, when the alarm unit 11 is hung on the wall using the locking portion 18a, the outlet is suitable for the case where the outlet exists directly below the alarm unit 11. In this case, the power cord 30 is unwound from the cord winding portion 19 according to the distance to the outlet, and the cables 30a and 30b of the power cord 30 are locked vertically in the locking groove 25a of the intermediate hook 25. And pull out.

  (Drawing Example 3) FIG. 4 shows a case where the power cord 30 is pulled out from an intermediate hook 26 provided in the middle of the side facing the locking portion 18b. In this example, when the alarm unit 11 is hung on the wall using the locking portion 18b, the outlet is suitable for the case where the outlet exists directly below the alarm unit 11. In this case, the power cord 30 is unwound from the cord winding portion 19 according to the distance to the outlet, and the cables 30a and 30b of the power cord 30 are locked vertically in the locking groove 26a of the intermediate hook 26. And pull out.

  (Drawing Example 4) FIG. 5 shows a case where the power cord 30 is pulled out from the upper left corner hook 21. In this example, when the alarm unit 11 is hung on the wall using the locking portion 18a, the outlet is suitable when the outlet exists in the upper right or right lateral direction of the alarm unit 11. In this case, the power cord 30 is unwound from the cord winding portion 19 according to the distance to the outlet, and the power cord 30 is pulled laterally locked in the locking groove 21a of the corner hook 21 and pulled out. In this case, the power cord 30 is folded so that the folded portion 30c can be formed, and the folded portion 30c is brought into contact with the corner hook 23, so that the folded power cord is not exposed from the front of the alarm device 11 to the outlet. The length of can be adjusted. The corner hook 23 is not used for drawer, but serves as a power cord storage guide.

  (Drawing Example 5) FIG. 6 shows a case where the power cord 30 is pulled out from the lower right corner hook 24. In this example, when the alarm unit 11 is hung on the wall using the locking portion 18a, the outlet is suitable when the outlet exists in the lower left direction of the alarm unit 11. In this case, the power cord 30 is unwound from the cord winding portion 19 according to the distance to the outlet, and the power cord 30 is pulled laterally locked in the locking groove 24a of the corner hook 24 and pulled out. In this case, the power cord 30 is folded so that the folded portion 30c can be formed, and the folded portion 30c is brought into contact with the intermediate hook 26, so that the folded power cord is not exposed from the front of the alarm device 11, and The length up to can be adjusted. The intermediate hook 26 is not used for drawer, but serves as a power cord storage guide.

  The return of the power cord 30 shown in Drawing Examples 4 and 5 is possible because there is a gap (space) between the corner hooks 21 to 24 and the outer shape of the back plate 18. In addition, the amount of the power cord 30 pulled out can be adjusted by changing the position of the folded portion 30c. Any corner hook or intermediate hook that is not used as a locking portion for the drawer of the power cord 30 can be used as a power cord storage guide when the power cord 30 is folded.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to this, A various deformation | transformation and application are possible.

  For example, in the above-described embodiment, the case of a fire alarm is described as the alarm. However, the present invention is not limited to this, and other types of alarms such as a gas leak alarm, a gas leak / fire integrated alarm, and the like. It can also be applied to a vessel.

It is a figure which shows the external appearance of the alarm device which concerns on embodiment of this invention, (A) is a rear view, (B) is a bottom view. It is a back perspective view showing the appearance of the alarm device concerning an embodiment of the invention. It is a rear view which shows the example of how to pull out the power cord from an alarm device. It is a rear view which shows the example of how to pull out the power cord from an alarm device. It is a rear view which shows the example of how to pull out the power cord from an alarm device. It is a rear view which shows the example of how to pull out the power cord from an alarm device. It is a figure which shows the conventional AC power supply system alarm device, (A) is a rear view, (B) is a side view which shows the detail of a fixed hook.

Explanation of symbols

11 Alarm 13 Back Case 18 Back Plate 18a Locking Part 18b Locking Part 19 Cord Winding Part 21 Corner Hook 22 Corner Hook 23 Corner Hook 24 Corner Hook 25 Middle Hook 26 Middle Hook 30 Power Cord

Claims (3)

An alarm device that is installed on the wall of the monitoring area, detects an abnormality of the monitoring area, and notifies an alarm,
Corner hooks provided at the four corners of the substantially rectangular back of the back case that constitutes the alarm body,
A back plate provided on the back side of the back case and formed so that two locking portions for installing the alarm device on the wall form an angle of 90 degrees with each other;
An intermediate hook provided in the vicinity of the middle of the side facing the locking portion on the back of the back case;
A cord winding portion formed between the back side of the back case and the back plate;
An alarm device comprising: a power cord wound around the cord winding portion and locked by either the corner hook or the intermediate hook. The alarm device according to claim 1,
An outer shape of the back plate is formed so as to generate a gap in which the power cord can be folded between the corner hook and the corner hook or the intermediate portion that is not used for locking the power cord. The hook hook functions as a power cord storage guide when the power cord is folded back. The alarm device according to claim 2, wherein
The power cord is a VFF type cord,
The corner hook has a locking groove for horizontally locking the VFF type power cord,
The alarm device according to claim 1, wherein the intermediate hook has a locking groove for vertically locking the VFF type power cord.

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