JPH0715991U - Shutter device for the lower end clearance of the door - Google Patents

Abstract

(57) [Summary] [Object] To provide a shutter device for a lower end gap of a door that effectively closes a gap generated between the lower end of the door and the upper surface of the sill when the door is closed. [Structure] A door shutter 3 having a horizontally elongated elastic closing portion 5 having a lower half portion elastically recessed is horizontally provided in a skirt portion 2 at a lower end of a door 1, and a door is further provided in the skirt portion 2. 1. The front end of the door mounting frame 8 on the side of the hinge side of the building 1 is exposed, the free end protrudes from the skirt portion 2, and an operating pin 10 biased in the direction of the mounting frame 8 is provided. The pin 10 and the door shutter 3 are connected by the slide bar 11 and the flexible belt 13 so that the forward / backward movement of the operating pin 10 and the vertical movement of the door shutter 3 are interlocked, and the door 1 is closed to close the operating pin 10. When the door shutter 3 contacts the mounting frame 8 and moves backward, the door shutter 3 descends by gravity, and the sill 16 and the door 1
It features a structure that closes the gap between them.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is provided at the lower end of an opening / closing door attached to a building, etc., and closes the gap between the lower end of the door and the sill or the floor that occurs when the door is closed. It concerns a shutter device in the lower clearance of the door used to prevent incoming wind, insects and sounds.

[0002]

[Prior art]

 When the door of a building is closed, it is inevitable that a gap will be created between the lower end of the door and the sill / floor surface (hereinafter referred to as sill) below the door. Therefore, in order to prevent the gap, it is a common practice to provide a stopper bar that rises above the sill, etc., and apply the stopper bar to the lower edge of the door in a closed position to close the gap. Has been. However, since the sill or the like on which the stopper bar is provided has a convex shape corresponding to the height thereof, it is easy to get stuck when passing, which causes an obstacle.

Therefore, as a solution to the problem, there has been proposed a soundproof and airtight device for a door, which is disclosed in Japanese Utility Model Laid-Open No. 55-13729, in which a shutter plate suspended from a spring is provided at the lower end of the door to provide a door. When the door is closed, the shutter plate descends to close the gap created at the lower end of the door, and when the door is opened, the shutter plate rises to avoid contact with the floor.

[0004]

[Problems to be solved by the device]

 The soundproof and airtight device for a door in the above known example has a slit-like structure that is parallel to the lower end of the door when the door is closed and the door is well built so that the lower edge of the door is parallel to the upper surface of the sill. When a gap is created, it has the effect of closing the gap, but since the shutter plate becomes rigid and the entire shutter plate descends vertically evenly on the left and right, due to improper installation of the door, etc. If the lower edge is in a non-parallel state, the difference in the gap amount due to the non-parallel remains unclosed. If there is a foreign substance on the sill or the like, the shutter plate will stop descending by catching the foreign substance, and the gap will not be sufficiently closed. The present invention provides a shutter device for a clearance at the lower end of a door that solves the above-mentioned conventional problems.

[0005]

[Means for Solving the Problems]

 The shutter device of the present invention that solves the above technical problem is "an elastic closing part in which a lower half part is elastically recessed and has a horizontally elongated body having a length substantially equal to the inner width of the skirt, which is attached to the lower end of the door. The door shutter is vertically installed so that the elastic closing part faces the lower opening of the skirt, and is vertically movable.The tip of the door shutter is attached to the door mounting frame on the hinge side of the door in the skirt. A movable pin protruding from the skirt in a free state and urged in the direction of protrusion so that the flexible pin is wound around a bearing roller provided in the skirt. The band connects the door shutter and the operating pin, holds the door shutter in the raised position in the free posture of the operating pin, and By contact backout part, in conjunction lowered the door Shutter has a structure "for closing the gap between door bottom when door closed.

[0006]

[Action]

 In the shutter device for the lower end clearance of the door of the present invention having the above-described structure, the door shutter installed inside the skirt at the lower end of the door is vertically operably connected by the operation pin and the flexible band having the above-described structure, and its operation. When the pin closes the door and comes into contact with the door mounting frame and moves backward, it descends and closes the gap created between the lower end of the door in the closed posture and the sill, etc. Sound and insects can be prevented.

Since the lower half portion of the door shutter is an elastic closed portion that is elastically concave and is suspended by the flexible band, the door is not properly installed and the lower end of the door and the sill are sill. Even if the gap on the upper surface of the door, etc. forms a non-parallel slit shape, the descended door shutter can freely assume a slightly tilted posture in the left-right direction of the shutter, so that it fits on the upper surface of the sill and is elastic. They come into contact and have an effective gap closing action. Even if foreign matter is present on the upper surface of the sill or the like, the elastic closing part of the lower half part is elastically elastically recessed and conforms to the foreign matter, so that other parts of the door shutter contact the upper surface of the sill or the like. Then, it also has an effective gap closing action.

[0008]

【Example】

 Hereinafter, a detailed description will be given based on examples. Referring to FIG. 1 showing a shutter device for a door lower end gap according to an embodiment of the present invention, a skirt that surrounds a frame along the peripheral wall of the door 1 below the lower end of the door 1 with an opening 4 at the bottom. A portion 2 is provided, and a door shutter 3 described in detail below is attached to the skirt portion 2. That is, a door shutter 3 having a length substantially the same as the inner width of the scart portion 2 and forming a single laterally long body is accommodated in the skirt portion 2 by suspension, and this door shutter 3 is shown in FIG. See (A) and (B). The upper half of the horizontally long main girder 6 is provided with the "elastic elastic concave part made of a thin rubber hollow body" 5 which is separate from the main girder 6 and constitutes the lower half. The elastic closing portion 5 is provided with a high elasticity that conforms to the shape of the foreign matter when the elastic closing portion 5 comes into contact with a convex portion such as a foreign matter. Then, the engagement piece 15 of the main girder 6 is fitted and combined with the engagement groove 14 at the upper end of the elastic closing portion 5 to form a single door shutter 3, and only the elastic closure portion 5 is formed. It can be removed and replaced.

In the skirt portion 2, the tip of the door 1 is exposed to the door mounting frame 8 of the building to which the hinge (not shown) of the door 1 is fixed so that the skirt portion 2 is slightly protruded from the skirt portion 2. Is provided with an actuating pin 10 which is urged in a protruding direction with a required urging force and is movable back and forth. The actuating pin 10 is supported in the skirt portion 2 along the lower end of the door 1 in the skirt portion 2. The operating pin 10 and the slide bar 11 are interlocked with each other so that they can move forward and backward in the direction of arrow A in the figure.

On the other hand, a pair of bearing rollers 12 having an appropriate span in the left-right direction of the skirt portion 2 are provided in an intermediate portion of the skirt portion 2, and a belt 13 of a flexible band is wound around the bearing rollers 12. The belt 13 is hung up, and one end of the belt 13 is connected to the slide bar 11 and the other end is connected to the main girder 6 of the door shutter 3, so that the door shutter 3 is vertically movably suspended in the skirt portion 2. When the open state of the operating pin 10 of the door 1 shown in FIG. 1 (A) is in the free protruding state, the door shutter 3 is housed in the skart part 2 and at the same time as shown in FIG. 1 (C). As described above, when the door 1 is closed and the operating pin 10 comes into contact with the mounting frame 8 and is forcibly retracted, the door shutter 3 is lowered mainly by its own weight in association with the retracting of the operating pin 10 and the skirt. It projects from the portion 2 and closes a gap formed between the sill 16 and the lower end of the door 1. In addition, 17 in the figure is a floor surface.

In the above embodiment, referring to FIG. 2, when a foreign matter 18 is present on the sill 16, the elastic closing portion 5 of the door shutter 3 that has been lowered by gravity flexibly follows the shape of the foreign matter 18. It is elastically recessed and close, and does not prevent the gap closing of other parts of the door shutter 3. When the door 1 is improperly installed and the gap between the closed door 1 and the sill 16 is non-parallel, the door shutter 3 suspended by the flexible belt 13 tilts left and right freely. Since the elastic closing portion 5 at the lower end is in a state of being pressed against the surface of the sill 16, there is an effective gap closing action. Further, in this embodiment, since the elastic closing portion 5 can be separated from the main girder 6 and replaced, only the elastic closing portion 5 which is easily worn and damaged can be replaced at any time, and can be used for a long life.

The shutter device for the lower end gap of the door of the present invention is not limited to the above-described embodiment, and for example, the elastic closing portion 5 of the door shutter 3 may be replaced with a sponge body such as a continuous foamed resin or fine hair. It may be in the form of a brush or a thin rubber sheet.

[0013]

[Effect of device]

 As described above, the shutter device for the lower end clearance of the door of the present invention effectively closes the clearance even if the door is improperly installed in the building or foreign matter is present on the sill when the door is closed. It has the effect of preventing the wind, sound, and insects from passing through the bottom gap of the closed door in buildings, etc., and has the effect of improving the pleasure of the users of buildings, etc. in their daily lives.

[Brief description of drawings]

FIG. 1 shows a shutter device for a lower end gap of a door according to an embodiment of the present invention, in which (A) is a front sectional view thereof, (B) is a sectional view taken along line AA of (A), and FIG. (C) is a front cross-sectional view with the door closed.

FIG. 2 is a front view showing a working state of the embodiment shown in FIG.

[Explanation of symbols]

 1 Door 2 Skirt Part 3 Door Shatter 4 Opening Part 5 Elastic Closing Part 6 Main Girder 7 Energizing Spring 8 Door Mounting Frame 10 Operating Pin 11 Slide Bar 12 Bearing Roller 13 Flexible Belt 16 Sill 17 Floor 18 Foreign Material

Claims (1)

[Scope of utility model registration request] 1. A door shutter having a laterally elongated body having a length substantially equal to the inner width of the skirt and having a lower half portion formed into an elastically closed portion that is elastically recessed is provided in the skirt portion attached to the lower end of the door. The elastic closing portion faces the lower opening and is laid horizontally so as to be vertically movable. Further, the tip of the door is attached to the door mounting frame portion on the hinge side of the door in the skirt portion, and the skirt portion is free. An actuating pin that is protruded from and is urged in the ejecting direction is provided.Furthermore, the door shutter and the actuating pin are connected by a flexible band wound around a bearing roller provided in the skirt portion. , The door shutter is held in a raised position in a free posture of the operation pin, and the door shutter is contacted and retracted with respect to the frame portion to cause the door shutter to move. A shutter device for the lower end gap of the door, which has a structure in which the door is interlocked and lowered to close the gap at the lower end of the door when the door is closed.