JPH11152968A - Preventing device of draft for door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent air from flowing through a gap by transmitting opening/closing motions of a door to a device and closing the gap between the lower end part of the door and a floor by a preventing member of draft laterally installed in a moving direction transmitter converting motions from an opening/closing motion transmitter. SOLUTION: An actuation shaft 11 is turned to the direction in which a hinge supporting a door by the inside frame of a wall is arranged and the actuation shaft 11 transmitting the opening and closing motions to the device 1 is arranged at one side face of the preventing device of draft for the door. In this case, a preventing member of draft is constituted of a main body member 19 such as a resin and a contact member 20 such as sponge getting into contact with a floor. The preventing member of draft is raised by the tension of a support spring in the state the actuation shaft 11 is separated from the frame and housed in a case 10. The actuation shaft 11 is positioned to butt the frame in the closed state of the door and push the preventing member of draft into a case 10 and shift a pushing plate fixed to the actuation shaft 11 and push down a reinforcing plate fixed to the preventing member of draft. In this way, the preventing member of draft is pushed out of the case 10 as much as a displacement of the actuation shaft 11 to close the gap between the lower end part of the door and the floor.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a draft prevention device for a door for preventing air from flowing into a room through a gap between a lower end portion of a door and a floor or flowing out of a room through a gap. It is.

[0002]

2. Description of the Related Art Hitherto, in doors for indoor entrances in buildings such as houses and buildings, a frame is provided around the door. The frame secures the door when the door is closed and has a function of preventing draft. Also,
In some cases, rubber packing or the like is provided in the frame at the portion where the frame and the door are in contact with each other in order to further enhance the function of preventing draft.

[0003]

However, in the case of an integral flat floor in which flooring or tiles are laid in the above-mentioned building to eliminate a step on the floor, there are many doors without a frame at the lower end. In such a door, when the temperature difference between the room and the outdoor is high, the outdoor air flows into the room through the gap between the lower end portion of the door and the floor, or the indoor air flows out of the room through the gap. become. Especially with wooden doors in houses, the building often deteriorates due to aging drying after construction and the gap often widens, and in the winter season, outdoor cold air flows into the room being heated, and you may feel uncomfortable feeling . In such a case, the draft is prevented by pressing a towel or the like into the gap.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has been made in consideration of the above-mentioned problem. An object of the present invention is to provide a door draft prevention device for preventing a flow of air flowing into a room or flowing out of a room through a gap.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, in a draft prevention device for a door according to the present invention, an opening / closing operation transmitting means for transmitting an operation when a door is opened / closed to the device, and the opening / closing operation. Movement direction conversion means for converting the operation from the transmission means into vertical movement, and a windproof member for closing a gap between the floor and the lower end of the door provided at the end of the movement direction conversion means Having.

[0006] The door draft prevention device constituted by the above means is fixed to the front or back surface of the lower end of the door for an existing door, and the draft draft prevention device for the door is previously set to the lower end for a new door. It is also possible to install it inside the unit.

[0007] In a door in which the above-mentioned door draft prevention device is fixed or installed, the operation from the opening / closing operation transmitting means is released when the door is opened, and the operation is not transmitted to the movement direction converting means. Is lifted up and stored in the door draft prevention device. However, in the state where the door is closed, the operation from the opening / closing operation transmitting means is transmitted to the movement direction changing means, and the windbreak member is pushed down and pushed out from the door draft prevention device, so that the space between the lower end of the door and the floor is removed. The gap can be closed.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of a draft prevention device for a door according to the present invention, and FIG. 2 is a diagram illustrating a state where the draft prevention device for a door of the present invention is attached to a door. In the existing door 2,
In order to close the gap between the lower end of the door 2 and the floor 6, the door draft prevention device 1 is fixed to the front or back surface of the lower end of the door 2. An operation shaft 11 is provided on one side surface of the door draft prevention device 1 as an opening / closing operation transmitting means for transmitting an operation when the door 2 is opened / closed to the device. The operating axis 11
Is oriented in the direction in which the hinge 5 supporting the door 2 is attached to the frame 4 installed inside the wall 3.

FIG. 3 is an internal sectional view of an embodiment of a draft prevention device for a door according to the present invention, showing a state in which a windproof member is housed in a case. FIG.
3 shows a state in which the operating shaft 11 is separated from the frame 4, that is, a state in which the door 2 is opened.

The distal end of the operating shaft 11 is protruded from one side surface of the case 10, and together with the operating shaft support 12 provided near the other distal end of the operating shaft 11, extends in parallel with the long side direction of the case 10. Set up. A shaft spring 13 is inserted into the operation shaft 11 inside the case 10 from which the tip of the operation shaft 11 protrudes, and a stopper 14 for pushing the shaft spring 13 is engaged. Further, a shaft spring receiving member 15 for receiving the shaft spring 13 pressed by the stopper 14 is passed through the operation shaft 11 and is axially mounted.

A flexible push plate 1 is provided on the bottom side of the operating shaft 11.
The extruding plate 16 is held in parallel by a pair of guide plates 18 so that the extruding plate 16 can move vertically. The guide plate 18, which is in contact with the pushing plate 16 when the operating shaft 11 is pressed, has an angle (rightward in the figure) so that the pushing plate 16 does not bend in any direction other than the vertical direction, so that the up-and-down movement is smooth. It is made so that you can do it.

The windproof member includes a main body member 19 serving as a main body,
It is composed of a contact member 20 that comes into contact with the floor surface. The main body member 19 is preferably made of rubber or resin, but is not particularly limited. The contact member 20 is preferably a flocked member such as sponge, felt, or brush velvet in order to improve the adhesion without damaging the floor.
It is not necessary to use a material having the same properties as the above.

A support plate 22 is fixedly attached to the upper surface of the windproof member by fastening a reinforcing plate 21, and the other end of the support spring 22 is fixed by a fixing bracket 23. The fixing bracket 23 is fixed to the case 10, and when the operation shaft 11 is separated from the frame 4, the windproof member is pulled up by the tension of the support spring 22 and is housed in the case 10. If the support spring 22 can be directly fixed to the main body member 19, the reinforcing plate 21
May be omitted.

FIG. 4 is an internal sectional view of an embodiment of a draft prevention device for a door according to the present invention, showing a state in which a windbreak member is pushed out of a case, and FIG. 5 (b).
Represents a state in which the operating shaft 11 is pushed by the frame 4, that is, a state in which the door 2 is closed.

In this state, the operating axis 11 hits the frame 4 and
It is pushed into the case 10 in the direction of arrow A in the figure. At this time, the operating shaft 11 moves rightward along the holes of the case 10 from which the operating shaft support 12, the shaft spring receiver 15, and the operating shaft 11 protrude. The pushing plate 16 fixed to the operating shaft 11 also moves at the same time.
To move vertically. As a result, the reinforcing plate 21 attached to the windproof member is pushed down in the vertical direction of the arrow B direction in the figure, and the windproof member is pushed out of the case 10 by the moving amount of the operation shaft 11, and the lower end of the door 2 is moved downward. This will close the gap between the floor 6.

When the door 2 is opened again, the operating shaft 11 separates from the frame 4, and the operating shaft 11 is pushed back by the shaft spring 13 and the stopper 14 fixed to the operating shaft 11. Also,
The windproof member fixed to the reinforcing plate 21 by the support spring 22 is also stored in the case 10.

It should be noted that what has been described in the present embodiment is an example of a device for preventing draft from being drafted for a door according to the present invention. It may be a mechanism. Further, it is more preferable that the mechanism has a mechanism capable of adjusting the length of the operating shaft 11 and adjusting the extrusion length of the windproof member according to the width of the gap between the lower end portion of the door 2 and the floor and the shape of the frame 4. Similarly, any mechanism may be used.

[0018]

As described above, the door draft prevention device of the present invention eliminates the step on the floor by laying flooring, tiles, etc. in the doors for indoor entrances in buildings such as houses and buildings. The following effects can be obtained when the door is used for a door having an integral flat floor and no lower end frame.

When the door is closed, the gap between the lower end of the door and the floor can be automatically closed by the windproof member.
When the door is opened, the windproof member is automatically stored, so that it is not necessary to press a towel or the like against the gap to prevent draft. Not only can a new door be installed at the lower end of the door in advance, but also an existing door can be fixed to the front or back surface of the lower end of the door by retrofitting, so it can be used for any door .
Since the outdoor air can be prevented from flowing into the room through the gap between the lower end of the door and the floor, or the indoor air can flow out of the room through the gap, there is an energy saving effect for heating or cooling.

[Brief description of the drawings]

FIG. 1 is a perspective view of a draft prevention device for a door according to the present invention.

FIG. 2 is a diagram showing a state in which the draft prevention device for a door of the present invention is attached to a door.

FIG. 3 is an internal cross-sectional view of an embodiment of a draft prevention device for a door according to the present invention, showing a state in which a windproof member is housed in a case.

FIG. 4 is an internal cross-sectional view of one embodiment of a draft prevention device for a door according to the present invention, showing a state in which a windproof member is pushed out of a case.

5A and 5B are top cross-sectional views illustrating an operation state of an embodiment of a draft prevention device for a door according to the present invention. FIG. 5A illustrates a state where an operation axis is separated from a frame, and FIG. It is a figure showing the state pressed on the frame.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door draft prevention device 2 Door 3 Wall 4 Frame 5 Hinge 6 Floor 10 Case 11 Operating shaft 12 Operating shaft support 13 Shaft spring 14 Stopper 15 Shaft spring receiver 16 Extruded plate 17 Screw 18 Guide plate 19 Body member 20 Contact member 21 Reinforcement plate 22 Support spring 23 Fixing bracket

Claims (2)

[Claims] An opening / closing operation transmitting means for transmitting an operation when the door is opened / closed to the apparatus; a movement direction converting means for converting an operation from the opening / closing operation transmitting means into a vertical movement; It has a windproof member which is engaged with the end of the movement direction changing means and closes a gap between the lower end of the door and the floor, and when the door is closed, the windproof member causes the gap between the lower end of the door and the floor. A draft prevention device for a door, characterized by being able to close a gap between the doors. 2. The door according to claim 1, wherein said door can be fixed to the front or back surface of the lower end of the door, and the new door can be installed in advance at the lower end of the door. 6. The draft prevention device for a door according to claim 1.