JP2523087Y2 - Window frame structure of outdoor electrical equipment storage box - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a window frame structure of a storage box for outdoor electric equipment, and more particularly, to a through-hole provided in a window frame to improve sound permeability and air permeability. .

[0002]

2. Description of the Related Art Conventionally, when an operation display window 1 is provided in an outdoor electric device storage box 20, a window frame 30 is fitted into a window hole of a lid 2 as shown in FIGS. In general, the glass 4 is mounted on the window frame 30. However, when a device that generates a sound, such as a buzzer, is attached to the inside of the storage box 20, the storage box 20 is formed in a sealed shape. there were. Further, when there is a difference in temperature and humidity between the inside of the storage box 20 and the outside air, there is a problem that the glass 4 of the window 1 for operation display is fogged. Therefore, in order to hear the sound well outside and prevent the window glass 4 from fogging, as shown in FIG. 6 and FIG. The sound hole 21 was provided.

[0003]

SUMMARY OF THE INVENTION In the above-mentioned conventional storage box for outdoor electric equipment, the window frame for operation display has not been devised to improve sound transmission and ventilation. Although the sound hole 21 is specially provided on the upper part of the side plate 20a of the sound guide hole 20, the processing of the sound hole 21 itself is troublesome, and the sound hole 21 is exposed to the outside. However, the structure becomes complicated as a whole, and it takes a lot of time for processing and increases the cost.

[0004]

SUMMARY OF THE INVENTION The present invention provides a window frame structure which is simple in structure, low in cost, and has good sound permeability and air permeability in view of the actual situation of the above-mentioned conventional storage box for outdoor electric equipment. In the configuration, a box-shaped frame whose front and back sides are open and conforms to the window hole is attached to the inside of a window for operation display provided on the lid, and the rear surface of the frame is made of a transparent plate. And a through hole is formed in the upper wall of the frame.

[0005]

When the buzzer mounted inside the outdoor electrical equipment storage box sounds, the sound sounds through the through-hole in the upper wall of the frame to the outside of the box and is easily heard by the surrounding people. Further, even if there is a difference in temperature and humidity between the inside of the storage box and the outside air, the window glass for operation display does not fog because the through hole has good air permeability. Furthermore, since the through-hole is provided in the upper wall of the box-shaped frame, intrusion of rainwater is prevented.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the window frame structure of the outdoor electrical equipment storage box according to the present invention will be described with reference to the accompanying drawings. 1 and 2, reference numeral 1 denotes a rectangular operation display window provided on a lid 2 of an outdoor electric device storage box, and 3 denotes a box-shaped window having front and rear openings and matching the window hole. Frame. The frame 3 is fitted into the inside of the window from the front, and a flange 3a formed on the front peripheral frame of the frame 3 has a cover 2 around the window.
And is screwed (not shown) to the lid 2 in this state. Reference numeral 4 denotes a glass plate as a transparent plate. A rubber packing 5 is sandwiched around the entire periphery of the glass plate 4, and the packing 5 and the glass plate 4 seal the back surface of the frame 3. Also, three through holes 6 are respectively formed in the upper wall 3b of the frame 3 to form sound holes.

[0007] The window frame structure of the outdoor electric device storage box configured as described above can be manufactured at a low cost because the structure is simple. Then, it operates as follows. That is, when a device that generates a sound, for example, a buzzer (not shown) is mounted inside the outdoor electric device storage box, when the buzzer sounds, the sound is generated on the frame 3 as indicated by an arrow A in FIG. The sound resonates out of the box through the through hole 6 of the wall 3b, so that it can be heard well by people around. Also, even if there is a difference in temperature and humidity between the inside of the storage box and the outside air, the through hole 6 provides good air permeability between the inside and outside of the box, so that the glass 4 of the operation display window 1 does not fog. Further, rainwater flows as indicated by arrow A in FIG. 2, but since the through holes 6 are provided in the upper wall 3b of the frame 3, it is possible to prevent rainwater from entering the storage box through the window 1. Furthermore, since the frame 3 is of a recessed type, it is possible to prevent the sunbeams from being reflected and the operation lamp (not shown) on the back surface of the glass from being difficult to see.

FIG. 3 is a side view of a modified embodiment of the present invention. That is, in the window frame structure of FIG. 2, the upper wall 3b and the lower wall 3c of the frame 3 are respectively inclined so that the rear ends thereof approach, and the waterproof cover 6a is provided on the through-hole 6. This provides a better waterproof effect than the window frame structure of FIG. However, the cover 6a does not necessarily need to be provided. In this window frame structure, the frame 3
When the and the packing 5 are integrally formed of hard rubber or the like, the number of parts is further reduced, which is advantageous in terms of management and cost. Other configurations, operations, and effects are the same as those of the window frame structure of FIG.

The shape of the window, the shape of the frame, the number of through holes, the materials of the transparent plate and the packing, etc. in the above embodiment are merely examples, and the point is that they can be appropriately changed without departing from the purpose and spirit of the present invention. Things.

[0010]

As described above, the window frame structure of the outdoor electrical equipment storage box according to the present invention has a box-like frame having front and rear openings in an operation display window provided in the lid. The rear surface of the frame is sealed with a transparent plate, and a through hole is formed in the upper wall of the frame. Therefore, the structure is simple and inexpensive, and the sound permeability and air permeability are good. Therefore, if a device that generates a sound such as a buzzer is installed inside the outdoor electrical equipment storage box, the noise can be heard well by surrounding people, and the temperature and humidity between the storage box and the outside air can be reduced. Even if there is a difference, the window glass for operation display does not fog. Furthermore, there is a great effect that rainwater is prevented from entering the storage box through the window.

[Brief description of the drawings]

FIG. 1 is a front view of one embodiment of a window frame structure of an outdoor electric device storage box according to the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a side view of a modified embodiment of the present invention.

FIG. 4 is a perspective view showing an example of a window frame structure of a conventional outdoor electric device storage box.

FIG. 5 is a view taken in the direction of arrows AA in FIG. 4;

FIG. 6 is a perspective view showing an example of a conventional outdoor electric device storage box.

FIG. 7 is a perspective view showing an example of a conventional outdoor electric device storage box.

[Explanation of symbols]

1. Window for operation display 2. Lid body 3. Frame
3a, flange, 3b, upper wall, 3c, lower wall, 4
・ Glass plate, 5 ・ ・ Packing, 6 ・ ・ Through hole, 6a ・ ・
Cover.

Claims (1)

(57) [Scope of request for utility model registration] 1. A box-shaped frame having front and rear openings and matching said window hole is mounted inside an operation display window hole provided in a lid, and the rear surface of the frame is sealed with a transparent plate. A window frame structure for an outdoor electric device storage box, wherein a through hole is formed in an upper wall of the frame.