JP2003013633A - Sliding fire door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heavy self-closing sliding fire door that can be opened easily by a person even when the person is shorter in height than the door. SOLUTION: The self-closing sliding fire door which is installed in an always opened state has a vertical long recessed handle section provided on the surface of the door on the end side of the door or a long vertical tiltable handle buried in the surface of the door in the closing direction of the door.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a fire door which is normally opened and provided with a simple moving structure for returning the door to the original position after use.

[0002]

2. Description of the Related Art Conventionally, a fire door is usually stored in a door pocket so as to be inconspicuous, and in an emergency, it is unlocked by a sliding door locking device that is remotely operated or linked with a fire alarm or smoke detector. The opening is closed by various self-closing means. As the structure of the fire door, the vertical frame on the door end side has a concave groove so that even a small fire will not leak when a fire occurs, and the door end of the fire door enters when the door is closed. .

[0003]

However, the fire-proof sliding door is heavier in weight than a general sliding door, and unlike a general sliding door, a handle or a handle is used for the purpose of completely accommodating it in the door pocket and taking a wider opening. Often not provided,
Even if it is provided, it is at most possible to install a pulling tool which is of an embedded type and is capable of catching a few fingertips of one hand.

[0004] This sliding handle is provided at the height of approximately the center of the sliding door tip side, but if the fire door that was once closed was to be reopened, the force had to be concentrated only on the fingertips. Further, there is a disadvantage that a person who is short is too high to apply force, whereas a person who is tall is too low to apply force. The present invention is provided for the purpose of solving such inconvenience.

[0005]

SUMMARY OF THE INVENTION In one aspect, the present invention relates to a self-closing fire door that is normally open and is longer than the height of the opening of the fire door, which is longer than the fingers of both hands except the parents' fingers are lined up on the fire door surface. It is a fireproof sliding door characterized by being provided with a concave vertical elongated pulling part having a short length, and one is a self-closing fireproof sliding door that is normally opened and can be held with both hands on this fireproof sliding door surface. A fireproof sliding door having a retractable and vertically long puller handle embedded therein having a length longer than a certain degree and shorter than a height of an opening.

This fireproof sliding door may be either a single sliding door or a double sliding door, and in the case of a double sliding door, the opening directions are simply different when looking at each one. This is because it is just a combination of sliding doors. Also, as a method of burying the retractable pull handle, there is a method in which a handle embedded portion that is similar to the handle shape is provided in advance on the surface of the sliding door and the retractable pull handle is attached to it. as creates the unit attachment embedded in advance retractable pullers handle, either method for fire door includes those both there is a method of providing a buried portion for the unit mounting the present invention in a sliding door surface May be used.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A fire door of the present invention will be described below with reference to the drawings. FIG.
FIG. 2 is a front view of the case in which it is fully closed, FIG. 2 is a partially enlarged perspective view of the concave pull tab portion 2 of Example 1, and FIG. It is a partially enlarged view of installation of a retractable puller handle. In addition, FIG. 4 is an explanatory diagram of a vertically long pull portion provided on a sliding door and a pull portion contact position due to a height difference.

Before explaining the embodiment, it is premised that the fireproof sliding door in this embodiment is installed in a normally open state. Therefore, when fully opened, the fireproof sliding door is opened by being locked by a sliding door locking device (not shown). The state is maintained. In an emergency, the locking of the sliding door locking device is released by remote control or a signal from a fire alarm or smoke detector, and the fire door is automatically closed by the self-closing means.

In the first embodiment shown in FIGS. 1 and 2, a vertically elongated concave pull portion 2 is provided near the front end of a fire door 1. There is a limit to how long this vertical length is, however, it is shorter than the height of the opening. The reason is that the opening must be completely closed by the fire door 1 when fully closed, but if the concave pull tab 2 is penetrated to the bottom or the top, a gap is created between the wall surface and the fire door 1. This is because there is a risk that fire will leak from it.

Further, it is essential that the position where the vertically long concave pull tab portion 2 is provided does not extend into the concave groove type provided in the door end side vertical frame 7, for the same reason as described above. . Further, it is preferable that the vertically long concave pull tabs 2 are provided on both front and back sides of the fire door 1, but one face may be provided, and one or two or several places may be provided on one face. If you open it a little, you can easily open it with your hands on the door.

Next, a second embodiment will be described. Example 2
As shown in FIG. 3, a handle embedded portion 3 is provided in advance in the fireproof sliding door 1, and a retractable puller handle 4 is installed in the handle embedded portion 3. This is used by picking up the pulling handle 4 from the handle burying portion 3 at the time of use, and is buried in a state in which the pulling handle 4 is tilted toward the sliding door closing direction side indicated by the arrow. This is configured such that when the fire door is opened, it comes into contact with the door bag 5 and the pull handle 4 is automatically stored in the handle embedded portion 3, and this pull force pulls the pull handle 4 when it is raised. Is easy to insert and the sliding door is easy to open. Also, the handle embedded part 3
A handle stopper 6 made of resin is provided inside so that the handle 4 does not move freely when it is fitted. Further, since this is often used as a fire door at a place that has become an evacuation passage, it is preferable to provide the vertically long handle embedded portion 3 and the pull handle 4 on both front and back sides of the sliding door.

The operation of the embodiments shown in Embodiments 1 and 2 will be described. In an emergency, the lock of the sliding door locking device linked with the remote control or the fire alarm and the smoke detector is released, and various types of fire-proof sliding doors are released. It is automatically closed by self-closing means.

In order to reopen the fireproof sliding door 1 depending on the circumstances, in the case of the first embodiment, it is possible to hang the fingers of both hands on the vertically elongated concave pulling part 2. In the case of the second embodiment, the pull handle 4 is once pulled out from the handle buried portion 3 and raised, and the handle is grasped and opened by both hands.
When you open it to a certain extent, you can open it all at once because your fingers are entering the door.

If the situation of opening the fire-proof sliding door 1 is an emergency evacuation, once it is opened and passed, then the fire-proof sliding door 1 is closed again by the self-closing means. When the fire door 1 is fully opened, the fire door 1 is locked by the door lock device (not shown) and returns to the normally open state.

If the emergency evacuation is mainly considered, it is preferable to color the concave pulling part 2, the handle-burying part 3, the pulling handle 4 or the like in a color which is conspicuous, for example, red, yellow or a super bright color. Because it is always stored in the door pocket, no matter how fluffy it is, you don't have to worry about it at all, and in an emergency, it is conspicuous enough that you can open it and escape.

[0016]

When the fireproof sliding door of the present invention is installed normally open, the sliding door is completely inserted into the door pocket, so that the effective opening area can be maximized. In addition, even if the door weight is fully closed, everyone, regardless of their height, such as children or adults, can open their hands with their hands, regardless of the weight of the door, as shown in Figure 4. It is easy to operate and easy to open.

[Brief description of drawings]

FIG. 1 is a front view of a fireproof sliding door provided with a vertically elongated concave pull portion when it is fully closed.

FIG. 2 is a partially enlarged perspective view of a vertically long concave pull tab portion.

[Figure 3] Partial enlarged view of the retractable puller handle installation

FIG. 4 is a comparative explanatory view of a contact position of a vertically long pull part and a pull part contact position due to a difference in height.

[Explanation of symbols]

1 fire door 2 Recessed pull part 3 Handle buried part 4 Puller handle 5 door pockets 6 Handle stopper 7 Door side vertical frame

Claims (2)

[Claims] 1. A self-closing fire door that is normally open and has a vertically elongated concave puller having a length that is longer than the length of the fingers of both hands except the parents' fingers on the surface of the fire door and shorter than the height of the opening. Fire-proof sliding door characterized by having parts 2. A self-closing fire door that is normally open and has a retractable, vertically elongated pull handle that has a length longer than the extent that it can be held by both hands and shorter than the height of the opening. Fireproof sliding door characterized by being