JP2014043757A - Crime-prevention/fire-protection door with energy conservation ventilation screen window - Google Patents

Abstract

PROBLEM TO BE SOLVED: To require a technology which achieves functions of energy conservation, power saving, ventilation, protection from insects, crime prevention, and fire protection at the same time, while considering that: since an entrance door of an apartment house requires functions of crime prevention and fire protection, and ventilation is not allowed and dependence on air-conditioning is actual in summer season; there is a technique of installation of a screen door on the inside of an opened door, but there is uneasiness about safety; and a technique of providing a ventilation window in a door itself is devised, but the ventilation window is hardly mounted in an existing door, thus it is not put in practice.SOLUTION: A ventilating window 5 is provided in an entrance door 1, thereby energy conservation and power saving can be achieved while preventing injurious insect from intruding by an insect screen door 10. Moreover, blade-like fire prevention plates 6 for shielding the ventilating window 5 by a spring force caused by release of a braking tool 9 due to heat in the fire disaster are installed in the ventilating window 5, thus imparting a fire protection function to the ventilating window. It also fulfills a role of a crime prevention lattice. These components are modularized with a window frame structure 2 used as a skeleton and mounted in an opening formed in the entrance door 1, thereby allowing this module to be easily mounted not only in a newly installed door but also in an existing door.

Description

  The present invention relates to the shape and function of an entrance door.

Entrance doors such as apartment houses have a structure that prevents ventilation from the viewpoint of fire prevention, and conventionally, measures have been taken to prevent ventilation such as installing a screen door inside the opened entrance door (for example, see Patent Document 1). In addition, there are cases in which a ventilation window with a screen door is provided on the door and the window is closed or blocked by dropping a fire wall in the event of a fire (for example, see References 2 and 3).
Utility model No. 3088179 JP 2000-73671 A JP 2008-138476 A

  Entrance doors such as apartment houses have a structure that cannot ventilate from the viewpoint of fire prevention. However, there is a fear of crime prevention when the entrance door is opened (for example, see Patent Document 1). The technique of providing a ventilation window on the door is not widespread because it may be difficult to install on the existing door (for example, see References 2 and 3). In order to save energy and save electricity, a technology that has ventilation, insect prevention, crime prevention and fire prevention functions and can be easily installed on existing doors is sought.

  In order to achieve the above object, the present invention provides ventilation, insect prevention, and crime prevention functions by providing ventilation windows with screen doors and lattices on the entrance door. In the ventilation window, the brake is removed in response to the heat of the fire, and a fire prevention function is provided by providing a blade-like fire prevention plate that shields the ventilation window with the force of the spring material installed inside. The blade-shaped fire protection board also serves as a security grid. These can be installed simply by modularizing the window frame structure into a housing and fitting and fixing it into an opening formed in the door, regardless of whether it is a newly manufactured door or an existing door.

  According to the present invention, ventilation can be performed by arbitrarily opening a ventilation window with the entrance door closed, which is useful for energy saving and power saving. The screen door can prevent the invasion of harmful insects. The brake is removed by heat at the time of fire, and it has a fire prevention function by providing a blade-like fire prevention plate that shields the ventilation window by the force of the spring material. The blade-shaped fire prevention board also has a crime prevention function by serving as a security grid. If these are modularized with the window frame structure as a housing, it can be easily installed not only on a newly manufactured door but also on an existing door, and the object of the present invention is achieved.

Embodiment of this invention. According to FIGS.
1. Entrance door body: If the door has other structures such as a mail box, add a hole of about 800mm in length and 600mm in width at the top or bottom. Install the integrated module. Although a large hole is made, the strength of the door is maintained by the window frame structure 2 and the window frame fixing member 6.
2. Window frame structure (module housing): Using a strong steel plate, a height of 840mm, a width of about 640mm, and a height of 45mm according to the size of the hole drilled in the door, A module frame body is formed by joining a window frame reinforcing steel material having a vertical shape of about 800 mm in length and 600 mm in width. Furthermore, a receiving groove is provided at the tip of the window frame reinforcement on the indoor side so that the inner wall 10 with the insect screen can be inserted from above.
The module is basically installed at the lower part of the door, but if there is a failure at the lower part, it is installed at the upper part. It can be installed on both top and bottom.
3. Window frame structure fixing material: a member for fixing the window frame structure 2 to the entrance door 1.
4. Window frame structure fixing screw: A screw for fixing the window frame structure 2 to the entrance door 1 using the window frame structure fixing material 3.
5. Ventilation window (opening): The window frame structure 2 is provided with ventilation windows having a length of about 750 mm and a width of about 570 mm.
6. Blade-shaped fireproof plate: The ventilation window 3 is installed so that the front surface of the blade-shaped fireproof plate is forcibly covered with a spring material and functions as a firewall. At that time, by making the shape of the blade-shaped fire prevention plate a little wider at the rear of the attachment portion, it is possible to prevent a gap from being formed in an overlapped state. The material is steel plate.
When ventilating the ventilating window 5, the blade-like fireproof plate is lifted to a slightly forwardly inclined posture to prevent looking into it by removing the resistance of the spring material, and temporarily fixed with a brake tool 9 described later.
When the heat of the fire is sensed, the brake 9 is released and returns to the closed state instantly by the force of the spring and plays the role of a fire barrier.
This blade-shaped fire protection board also plays a role of a security grid.
7. Blade-shaped fire prevention plate attachment material: Installation materials made of incombustible material for attaching the blade-like fire protection plate are installed on the inner left and right sides of the window frame structure 2.
8. Spring material: One member of the brake tool 9 installed on the inside upper part of the window frame structure.
9. Braking tool: The vane-shaped fireproof plate 6 is completely covered with the force of the spring material 8 during normal times, and the spring material is loosened by pulling the open string of the brake tool during ventilation. The rear part of the fireproof board 6 can be raised and ventilated. Steel cords are used in principle for the brake straps, but there are parts that use fishing lines as sensors for the brakes.
When the heat of the fire is detected, the force of the spring material 8 is utilized by the action of the braking tool to instantly cover the ventilation window 5 with the blade-like fire protection plate 6 and function as a fire barrier.
As an example, a primitive and reliable method is conceivable in which a fishing line is tied to a spring material installed at the upper part of the window frame structure 2 and temporarily fixed to the lower part of the window frame structure 2 through the inside of the ventilation window. If the fishing line is pulled, the wing-shaped fire prevention board 6 opens and ventilates, and if the fishing line is cut by the heat of the fire, the wing-like fire prevention board 6 is closed by the force of the spring material to form a fire prevention wall.
10. Inner wall with insect screen door ... A steel plate that can be easily detached is attached to the indoor side of the window frame structure 2, and an insect screen door is provided at the lower opening.

Other embodiments

  In addition to the examples of the braking tool, a method of controlling the operation of the blade-shaped fire prevention plate 6 using a fuse, a shape memory alloy, and a sound sensor that reacts to heat at the time of a fire is conceivable.

  The inner wall 10 with the insect screen can be replaced with a smoke screen without the insect screen in order to reinforce the smoke prevention function in the event of a nearby fire. This can also be used as a countermeasure against cold.

It is a front view which shows one Embodiment of this invention. It is sectional drawing which shows one Embodiment of this invention.

1. Entrance door body 2. Window frame structure (module housing)
3. Window frame structure fixing material 4. Window frame structure fixing screw 5. Ventilation window (opening)
6. Feathered fire protection board (and security grid)
7, blade-shaped fireproof plate attachment material 8, spring material 9, brake tool 10, inner wall with insect screen door

Claims (1)

  By providing ventilation windows with screen doors and lattices on the entrance door, it will have ventilation, insect and crime prevention functions. When the heat of the fire is detected, the brakes installed in the ventilation window are released and the spring material installed inside the ventilation window is used to shield the ventilation window instantly with the blade-shaped fire protection plate installed in the ventilation window. And provide fire protection. The blade-shaped fire protection board also serves as a security grid. A door characterized by modularizing a window frame structure into a housing and attaching these existing technologies to an opening formed in the door body, so that it can be easily attached to an existing door as well as a new one.

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