JP2003166381A - Sealing device for openable door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a sealing device for an openable door, which is excellent in airtightness and watertightness, wherein the sealing device can be easily formed without requiring strict working accuracy or strict dimensional matching. <P>SOLUTION: A door main body 1 of the openable door is openably connected to a frame main body 2, and a shutter 6 is housed in a housing portion 5 of the door main body 1 in a manner vertically movable by a vertically moving means. When the door main body 1 is opened, the shutter 6 is elevated to form a gap between a floor surface 3 and the door main body 1. On the other hand, when the door main body 1 is closed, the shutter 6 is lowered to bring a contact portion 7 at a lower bed thereof into contact with the floor surface 3, whereby the gap between the door main body 1 and the floor surface 3 can be closed. Further, an outer surface of the lower bed can abut on an abutting portion 8 of the main body 2. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention, for the purpose of barrier-free, opens and closes an entrance door, an interior door, a bathroom door, etc. of a house having a flat floor without steps in an airtight or watertight manner. The present invention relates to a door sealing device.

[0002]

2. Description of the Related Art Conventionally, for the purpose of barrier-free, the step between the entrance porch and the dirt floor, the step of the lower frame for draining water, the step between the bathroom and the dressing room, the room and the corridor, etc. have been eliminated. In a structure aiming to form a flat structure, when closing the door body to the frame body fixed to these structures, both ends and the upper end of the door body are watertight or Airtightly adheres. On the other hand, in order to prevent the door body from being dragged, the door body has a structure in which a slight gap is formed between the door body and the floor surface. Therefore, for door bodies that require strict water tightness such as entrance doors and bathroom doors, a tight material is also placed on the floor side to provide an abutting part so that the lower end side of the door body is watertightly adhered. I am trying to do.

[Problems to be Solved by the Invention]

However, due to the tight material arranged on the floor surface, there is a possibility that a step may be generated to some extent, which may hinder the running of the wheelchair and the walking of the elderly. Further, in an indoor door or the like, the floor surface is not provided with an abutting portion such as a tight member and the floor surface is flat, but since the formation of the gap is not eliminated, the airtightness is impaired.

Therefore, in order to surely eliminate the step on the floor surface and to close the gap between the door body and the floor surface to obtain the airtightness of the door body, the invention described in Japanese Patent Laid-Open No. 10-96378 and Japanese Patent No. 2772463 are disclosed. There is an opening / closing door sealing device as in the invention described in the publication. First, in the invention described in Japanese Patent Application Laid-Open No. 10-96378, a plate-like shutter having a width narrower than that of the door body is connected to the lower end of the door body, and one side in the width direction is connected to the door body via a hinge. The shutter can be rotated up and down using the hinge as a fulcrum. Then, when the door body is closed, the other side of the shutter is lowered to make a line contact with the floor surface,
I tried to get a tight seal by closing the gap between the door and the floor. Further, the swinging of the shutter is performed by the action of repulsive force and attractive force of the magnet arranged on the shutter and the door main body, and two types of magnets having different polarity and the same polarity as the magnet of the shutter are arranged on the door main body. There is.

When the door body is released, the magnets of the door are opposed to the magnets of the door, and the magnets of the door body are fixed to each other, and the shutter is rotated upward.
It does not interfere with the opening and closing operation of the door body. When closing the door body, make the magnet of the door face the magnet of the same polarity to the magnet of the shutter, and rotate the shutter by repulsive force with the hinge as a fulcrum to bring the other side into contact with the floor surface. Closes the gap between the door and the body of the door. And
The switching of the magnet of the door body is performed by the rod-shaped operating piece that protrudes from the hinge side of the door body to the outside. When the operating piece hits the frame body when the door body is closed, it is pressed inward of the door body, and when the door body is opened, this pressing is released. By pressing and releasing the pressing of the actuating piece, the magnet of the door body moves, and the polarity acting on the magnet of the shutter is switched.

However, in the system in which the shutter, which is narrower than the door body, is rotated through the hinge, both ends of the shutter do not come into close contact with the abutting portion of the frame body when the shutter descends. There was a gap in the door, and good sealing of the door body could not be obtained. Therefore, it is not suitable for entrance doors, bathroom doors, etc. that require high watertightness and airtightness. Also, even when used for indoor use,
Since the contact area between the shutter and the floor surface is small, a lot of space is formed between the lower end of the door body and the floor surface, and sound is easily transmitted through this space and the gap between both ends of the door, resulting in sound insulation. It was inferior. Further, since the shutter is rotatable via the hinge, when wind or the like is strong, the shutter is lifted from the hinge to create a gap.

Further, in the invention described in Japanese Patent No. 2772463, a shutter having a flat contact surface at the lower end is housed in the housing at the lower end of the door body so as to be vertically movable without tilting. Then, the shutter is lowered to bring the large-area contact surface into horizontal surface contact with the floor surface, thereby closing the gap between the door body and the floor surface. Therefore, the contact area between the shutter and the floor surface is larger than that in the first conventional example, and it is possible to prevent the formation of a space and improve the hermeticity and sound insulation.

However, also in the second conventional example, since the shutter is narrower than the door body because it is housed in the housing portion, both ends of the shutter come into close contact with the abutting portion when the door body is closed. Nothing happened, and it was difficult to obtain a tight seal.

In order to solve the above problems, the present invention provides
The shutter enables the gap between the door main body and the floor surface to be satisfactorily closed, and the shutter can be brought into contact with the abutting portion of the frame main body to obtain excellent sealing performance of the door main body. . Further, the sealing device for the opening / closing door having excellent sealing property can be easily formed without requiring strict work precision and dimensional matching. In addition, it enables reliable operation when the door body is closed, and prevents the shutter from descending before closing the door body, increasing the reliability when operating the sealing device, and smoothly opening and closing the door body. And enables a reliable closure.

In the present specification, the door body is a door for opening and closing with a shaft such as a hinge serving as a fulcrum, which is an entrance door for shutting out indoors and outdoors from general houses, shops, factories and other houses. , Veranda doors, indoor doors to be installed indoors, bathroom doors, and others that require watertightness and airtightness.
Further, the urging spring includes a pressing spring and a tensile spring, and the urging direction indicates a direction in which the pressing spring is pressed and a direction in which the tensile spring is pulled. Further, in the present specification, the door body, the side provided with the hinge, the hinge side of the door body, the side opposite to the hinge side, the side provided with the latch that engages the strike of the frame body, It is on the open side of the door body.

[0011]

In order to solve the above problems, the present invention connects a door body to a frame body fixed to a house and provided with an abutting portion of the door body so that the door body can be opened and closed. The shutter is housed in the storage unit provided in the lower end length direction so that it can be moved up and down by the vertical movement means, and when the door body is closed, it is possible to close the gap between the door body and the floor surface by lowering the shutter and closing the door body. When the door is opened, the shutter is raised to form a gap between the floor surface and the contact portion of the shutter.When the door body is closed, the contact portion at the lower end contacts the outer surface of the lower end of the shutter that contacts the floor surface. It is formed so as to be able to contact the abutting portion of the frame body.

Further, the frame body may be provided with a smooth lower frame flush with the floor surface, and the contact portion of the shutter may be in contact with the lower frame surface.

In the shutter, a side wall having the same length as the door body is arranged parallel to the outer surface of the door body in the direction of the abutting portion of the frame body against which the door body is abutted, and when the door body is closed, the outer surface of the side wall is closed. The outer surface of the door body may be flush with the outer surface of the door body.

In the shutter, the side wall of the same length as the door body is projected on the side surface of the housing portion in the direction of the abutting portion of the frame body against which the door body is abutted, and the shutter is arranged on the outer surface of the door body. When the side wall is abutted against the abutting part at the time of closing, the side wall is pressed and stored in the storage step provided on the outer surface of the lower end of the door body, and the outer surface of the side wall and the outer surface of the door body are flush with each other. It may be.

The shutter may be pivotally supported on the hinge side by a pivotal support, and the shutter may be reciprocally movable in the direction of the abutting portion of the frame main body with the pivotal support as a fulcrum.

Further, the shutter vertical moving means is provided with a storage portion in the length direction of the lower end of the door body, the cylinder portion is projected in the length direction of the inner surface of the storage portion, and the piston is slidably inserted into the cylinder portion. Then, the piston is biased to one side or the other by the biasing spring, and the first magnet is arranged at the tip of the piston on the side opposite to the biasing spring, and the frame body at a position corresponding to the first magnet. A second magnet that acts on the first magnet in a direction opposite to the urging direction by a repulsive force or an attractive force stronger than the urging force of the urging spring, and the piston is provided with a space between the first magnet and the urging spring. A third magnet is arranged, a fourth magnet corresponding to the third magnet is arranged in the shutter, and when the door body is closed to the frame body, the repulsive force or attractive force of the first magnet and the second magnet is applied. The piston slides in the direction opposite to the urging direction due to the action against the urging spring, and the repulsive force or the attractive force of the third and fourth magnets is released or the shutter is lowered to release the contact portion. Touch the floor,
The outer surface of the lower end of the shutter is brought into contact with the abutting portion, and when the door body is released from the frame body, the action of the first magnet and the second magnet is released, and the piston is applied to one or the other side by the urging force of the urging spring. Even if it slides back to the above position, the repulsive force or the attractive force of the third and fourth magnets is released, or the shutter is raised by the repulsive force or the attractive force to form a space between the floor surface and the contact portion of the shutter. good.

Further, the fourth magnet of the shutter may be vertically arranged via the third magnet.

The fourth magnet of the shutter may be arranged so as to face the upper part of the third magnet.

The fourth magnet of the shutter may be arranged so as to face the lower part of the third magnet.

A plurality of third magnets of the piston and a plurality of fourth magnets of the shutter corresponding to the third magnets may be arranged in the longitudinal direction.

In the shutter, a fourth magnet is arranged above and below via a third magnet, and the upper and lower fourth magnets are made to face the third magnet of the piston when the door body is opened. 4th on the lower side
A magnet is arranged, and the third magnet and the fourth magnet on the lower side are fixed to each other by attractive force to raise the shutter, and in this raised state, the side wall is pushed from the storage step of the door body to the abutting portion of the frame body. When the door body is closed, the fourth magnet on the upper side of the shutter is arranged so as to face the third magnet of the piston, and the third magnet and the fourth magnet on the upper side are fixed by attractive force. The shutter may be moved downwards, and the side wall may be housed in the housing step portion in this lowered state so that the side wall and the door body are flush with each other.

Further, the shutter up-and-down moving means has an actuating member arranged so as to be capable of reciprocating in the longitudinal direction of the housing portion of the door body,
One end of a semi-circular leaf spring is fixed to this actuating body and the other end is slidably connected, and the actuating body is pushed toward the hinge side by the pushing biasing force of this leaf spring and one end is hinged from the end face of the door body. Side of the leaf spring, and the shutter is connected to the lower end of the semi-circle of the leaf spring.When the door body is closed, the frame body pushes the pushed portion to press the leaf spring. The actuator moves in the direction opposite to the urging direction of the leaf spring, and the downward deflection of the leaf spring caused by this movement lowers the shutter to bring the contact portion into contact with the floor surface and abut the outer surface of the lower end of the shutter. When the door body is opened, the pressure on the pressed part is released, the actuating body is restored in the hinge direction by the pressing force of the leaf spring, and the shutter is raised by the restoring action of the leaf spring. To form a gap between the floor surface and the contact part of the shutter. It may be.

Further, the vertical moving means of the shutter has an actuating member arranged so as to be capable of reciprocating in the longitudinal direction of the housing portion of the door body,
To this actuating body, a pressing body having a tapered pressing surface with the hinge side downward is provided on the lower surface is connected and fixed, and a receiving portion provided with a tapered pressed surface to be engaged with the tapered pressing surface is connected and fixed to the shutter, This shutter is biased upward by a tension spring and one end of the actuating body is projected from the end face of the door main body to the hinge side to form a pressed portion that can be abutted against the inner surface of the frame main body, and when the door main body is closed, The frame body presses the pressed part to move the operating body, and the tapered pressing surface of the pressing body presses the tapered pressed surface of the receiving part to lower the shutter against the pulling force of the tension spring. Contact the contact surface with the floor surface, contact the outer surface of the lower end of the shutter with the abutting part, and when the door body is opened, release the pressure on the pressed part and use the pulling force of the pulling spring to open the shutter. Rise to the floor To form a gap between the contact portion of Yatta, the actuating member may be configured to restore moving the hinge direction.

Further, the shutter up-and-down moving means has an actuating member arranged so as to be reciprocally movable in the longitudinal direction of the housing portion of the door body,
This actuating body is urged toward the hinge side by a pressing spring, and one end is projected from the end face of the door main body to the hinge side to form a pressed part that can be abutted against the inner surface of the frame main body and at the open side end of the actuating body. The operating piece is connected, and the operating piece is provided with an inclined groove that is inclined with respect to the axial direction of the operating body, and the engaging projection of the first link rotatably supported in the storage portion is slid in the inclined groove. The second link is rotatably supported at the other end of the first link and the shutter is supported at the lower end of the second link. By pressing the pressed portion, the operating body and the operating piece are moved in a direction opposite to the urging direction of the pressing bar, the first link engaging with the inclined groove of the operating piece is rotated, and the second link is inserted. Down the shutter to bring the contact part into contact with the floor surface and bring the outer surface of the lower end of this shutter into contact with the abutting part. At the same time, when the door body is opened, the pressing of the pressed portion is released, the actuating member and the actuating piece are restored and moved in the hinge direction by the urging force of the pressing spring, and the first link is rotated in the restoring direction, The shutter may be raised via two links to form a gap between the floor surface and the contact portion of the shutter.

[0025]

Since the present invention is configured as described above, during opening and closing of the door body, the shutter rises and is housed in the housing portion, and a gap is created between the door body and the floor surface. Since it is formed, a smooth opening / closing operation can be performed without dragging the shutter. Also, when the door body is closed to the frame body, the shutter descends, the lower end contact portion contacts the floor surface to close the gap between the door body and the floor surface, and the outer bottom surface of the shutter is framed. It abuts against the abutting part of the body to prevent the formation of gaps at both ends of the shutter. For this reason, the door body is highly reliable and airtight, and is also excellent in sound insulation and light shielding. Therefore, in the case of a door for a entrance, a door for a veranda, etc., the outside and the inside are shut off, and rain wind, dust, etc. can be favorably prevented from entering the room, and the door is not easily lifted by the wind. Further, the door for a room is excellent in airtightness in the room, enhances cooling and heating efficiency, and is also excellent in light shielding property and sound insulating property. Further, in the case of a door for a bathroom or the like, it is possible to favorably prevent entry of water into a dressing room or other rooms due to its excellent watertightness.

Further, if the contact portion provided at the lower end of the shutter is formed of a soft elastic member such as rubber, the degree of close contact with the floor surface is improved, and the elastic deformation force causes some unevenness on the floor surface. It can be absorbed and excellent sealing property can be obtained. However, when the floor surface is made of a material having large unevenness such as tiles or bricks, or when a carpet or the like is laid, the airtightness between the contact portion and the floor surface may be impaired. Therefore, if a hard lower frame made of metal, resin, etc. is provided flush with the floor on the frame body and the contact part of the shutter can be brought into contact with this lower frame surface, highly reliable airtightness can be obtained. To be

Further, according to the present invention, when the shutter is lowered, the outer surface of the lower end of the shutter is brought into contact with the abutting portion to enhance the airtightness. However, since this airtightness is made more reliable, In the shutter, a side wall having the same length as the door body is arranged parallel to the outer surface of the door body in the abutting direction of the frame body. Then, the side wall is formed so that the outer surface of the side wall and the outer surface of the door body are flush with each other when the door body is closed.
By providing the side wall on the shutter in this way, when the door body is closed, the outer surface of the side wall abuts against the abutting portion and a gap is prevented from being formed, so that excellent sealing performance can be obtained.

As the means for moving the shutter up and down, it is possible to use an appropriate means such as a combination of a magnet, a spring member, a gear and a lever, a link mechanism, and the like. If an attempt is made to lower the shutter when the door body is closed using these means, there is a possibility that the up-and-down moving means is activated immediately before the door body hits the abutting portion and the shutter is lowered. Therefore, frictional resistance is generated between the contact portion of the shutter and the floor surface, which may make it difficult to reliably close the door body.

In order to solve this problem, in the shutter, the side wall having the same length as the door body is arranged on the outer surface of the door body in the direction of the abutting portion of the frame body against which the door body is butted. . When the side wall is abutted against the abutting part when the door body is closed, the side wall is pressed and stored in the storage step portion provided on the outer surface of the lower end of the door body, and the outer surface of the side wall and the outer surface of the door body are covered. The side wall is formed so as to be uniform. When the shutter is formed in this way, in the closing operation of the door body, the side wall protruding in the abutting portion direction from the door body first abuts the abutting portion and reaches the closed position. Further, at this point, the door body has not hit the abutting portion, and the door body is slightly open.

Then, with the door body slightly opened, the vertical movement means reacts and the shutter descends. When the door main body is pressed and moved toward the abutting portion with the shutter lowered, the door main body moves toward the abutting portion and presses against the abutting portion while the side wall is pressed and stored in the storage step portion. In this way, even if the shutter descends while the door body is closing, the shutter has already moved to the abutting part side, so the shutter does not move after that, and only the door body can move smoothly. it can. Therefore, the door body can be securely closed, and not only the airtightness but also the security for crime prevention can be maintained. In the closed state of the door body, the outer surface of the side wall and the outer surface of the door body are flush with each other, and the outer surface of the side wall is in close contact with the abutting portion, so that excellent watertightness and airtightness can be obtained.

Further, as described above, when the side wall is projected toward the abutting portion, the amount of displacement of the door body and the shutter during the opening / closing operation is small on the hinge side. Therefore, the hinge side of the side wall is protruding, the hinge side of the side wall hits the abutting part with a slight closing action, which hinders the closing operation of the door body, or the end of the side wall and the abutting part rub strongly against each other. As a result, the abutting part may be damaged. For this reason, it is preferable that the shutter has its hinge side pivotally supported by the pivotally supporting portion so that the hinge side does not project toward the abutting portion. With this shaft support, the shutter can reciprocate in the abutting part direction with the shaft support part as a fulcrum, and the side wall of the shutter can project to the outside.

Further, in the case where the shutter is moved up and down by controlling the door main body, the frame main body and the first to fourth magnets provided on the shutter, when the door main body is opened, the second magnet of the frame main body, Since the first magnet connected to the piston of the door body is separated from the repulsive force or attractive force, the piston is urged to one or the other by the urging force of the urging spring. In this biased state, a repulsive force or an attractive force acts on the third magnet of the piston and the fourth magnet of the shutter, so that the shutter moves up and is stored in the storage portion. Therefore, the contact portion of the shutter does not come into contact with the floor surface, and the opening and closing operations of the door body can be smoothly performed.

Next, when the door body is closed to the frame body,
Since the first magnet arranged at the tip of the piston of the door body and the second magnet arranged in the frame body are close to each other, a repulsive force or an attractive force stronger than the biasing force of the biasing spring acts, so that the piston has the biasing spring. It moves in the direction opposite to the power. By the movement of the piston, the third magnet also moves integrally, so that the repulsive force or attractive force acting on the third magnet and the fourth magnet is released, and the shutter descends due to its own weight. Or, the repulsive force or attractive force acting on the third magnet and the fourth magnet becomes opposite attractive force or repulsive force,
Since the force applied to the shutter reverses, the shutter descends and the contact portion comes into contact with the floor surface to close the gap between the door body and the floor surface. At the same time, the outer surface of the lower end of the shutter comes into contact with the abutting portion of the frame body to prevent the formation of gaps at both ends of the shutter, so that excellent sealing performance can be obtained.

Further, the first magnet and the second magnet for controlling the movement of the piston can reciprocate the piston even if they are provided on the hinge side of the door body. However, on this hinge side, the amount of mutation when opening and closing the door body is small, so the repulsive force or attractive force of the magnet activates the movement of the piston with a slight closing action of the door body, and the shutter descends before closing the door body. There is also a possibility that dragging will occur. In order to eliminate this inconvenience and enable a smoother movement of the vertical movement means, a first magnet and a second magnet for controlling the movement of the piston are provided on the opening side of the door body opposite to the hinge. There is. Since the amount of displacement on the open side of the door body is larger than that on the hinge side, when the door body is completely closed, the first magnet and the second magnet act to lower the shutter. On the contrary, when the door body is opened, the interaction between the first magnet and the second magnet is immediately released and the shutter is raised, so that the opening operation is not disturbed. Therefore, compared with the case where a magnet or other member for controlling the movement of the piston is provided on the hinge side, it is possible to form the sealing device easily without requiring strict adjustment of the operation timing and high working accuracy. Will also be excellent.

The fourth magnet arranged in the shutter may be arranged so as to face the upper portion of the third magnet or the lower portion. For example, in the case of arranging in the upper part, the third magnet and the fourth magnet are arranged so as to generate a repulsive force when the door body is open, and the repulsive force separates the fourth magnet and the third magnet and raises the shutter. Let And when the door body is closed,
Since the piston moves in the direction opposite to the urging direction by the action of the first magnet and the second magnet, the repulsive force between the third magnet and the fourth magnet is released and the shutter descends. Further, by disposing a separate fourth magnet that produces an attractive force with the third magnet facing the upper part of the destination of movement of the third magnet at the time of closing, by fixing the separate fourth magnet and the third magnet, As compared with the case of only self gravity, the lowering operation of the shutter can be performed quickly, and this lowering state can be stably maintained.

On the other hand, when disposing the fourth magnet so as to face the lower part of the third magnet, when the door body is open,
The third magnet and the fourth magnet are arranged so as to attract each other by generating an attractive force, and the shutter is raised.
When the door body is closed and the third magnet is moved together with the piston, the attractive force between the third magnet and the fourth magnet is released, and the shutter is lowered by its own weight. Also in this case, if the third magnet and the separate fourth magnet that generates a repulsive force are arranged so as to face the lower part of the moving destination of the third magnet, the lowering operation of the shutter can be performed more smoothly than in the case of only self gravity. In addition to being able to do so, it is possible to keep the descending state stable.

Further, if the fourth magnet is arranged vertically through the third magnet, the magnetic force acting on the shutter becomes strong, and the vertical movement operation of the shutter can be performed quickly and smoothly. Further, the durability against the impact and the external force at the time of opening and closing the door body is enhanced, and it is possible to keep the ascending state and the descending state of the shutter due to the magnetic force. Further, when the fourth magnets are arranged vertically, for example, when the door body is opened, the third magnet generates a repulsive force with the upper fourth magnet and an attractive force with the lower fourth magnet. By arranging it, the shutter can be raised. Also, when the door body is closed, the third magnet
By arranging so that an attractive force is generated with the fourth magnet on the upper side and a repulsive force is generated with the fourth magnet on the lower side,
The shutter can be lowered.

Further, a third magnet of the piston,
The fourth magnet of the shutter corresponding to the third magnet may be arranged in only one set between the first magnet and the biasing spring, but if a plurality of magnets are arranged,
The repulsive force or attractive force acting on the shutter becomes stronger, and the balance is improved, so that the shutter can be smoothly and quickly moved up and down.

Further, as described above, when the side wall is projected toward the abutting part, when the door body is closed to the abutting part, the side wall is pressed by the abutting part and is securely stored in the storage step. When the door body is opened, it is preferable that the side wall surely projects again toward the abutting portion side. To this end, in the case of the vertical movement means using the first to fourth magnets, first, the fourth magnets are arranged above and below the shutter via the third magnet of the piston. When the door body is opened, the upper and lower fourth magnets face the third magnet of the piston and the fourth magnet on the lower side of the shutter is arranged. The third magnet and the lower fourth magnet are attracted by attractive force. The shutter is raised by fastening and the side wall is arranged in such a position that, in this raised state, the side wall projects from the storage step of the door body toward the abutting portion of the frame body. Further, when the door body is closed, the fourth magnet on the upper side of the shutter is arranged so as to face the third magnet of the piston, and the third magnet and the fourth magnet on the upper side are fixed by attractive force to close the shutter. The lower side fourth magnet is placed at a position where the side wall and the door body are flush with each other while the side wall is housed in the housing step portion while being lowered.

Further, since the vertical movement means of the shutter, which is different from the one using the magnet, connects the actuating body and the shutter through a semi-circular leaf spring, the frame body is closed by the frame body when the door body is closed. The pressed part of the actuating body is pressed to move the actuating body in the direction opposite to the biasing direction of the leaf spring, and the downward bending of the leaf spring caused by this movement lowers the shutter to move the contact portion to the floor surface. , And the outer surface of the lower end of the shutter is brought into contact with the abutting portion to close the gap. Also, when the door body is opened, the pressure on the pressed part is released, the actuating body is restored and moved in the hinge direction by the pressing force of the plate spring, and the restoring action of the plate spring raises the shutter to raise the shutter to the floor and the shutter. A space is formed between the contact part and the contact part.

Further, different shutter vertical moving means are
When the door body is closed, the pressed portion of the operating body, which is reciprocally arranged in the housing of the door body, is pressed to move the operating body in the opening direction of the door body. By this movement, the taper pressing surface of the pressing body presses the tapered pressed surface of the receiving portion, the shutter is lowered against the biasing force of the tension spring to bring the contact portion into contact with the floor surface, and the lower end of this shutter The outer surface is brought into contact with the abutting portion. Next, when the door body is opened, the pressure on the pressed portion is released, and the shutter is lifted by the pulling force of the pulling bar to form a gap between the floor surface and the contact portion of the shutter, and the pressing body is pressed. And the actuating body are restored and moved in the hinge direction.

Further, a different shutter up-and-down moving means pushes the pressed portion of the actuating member arranged reciprocally in the housing portion of the door main body when the door main body is closed, and is in a direction opposite to the urging direction of the pressing spring. The actuation body and actuation piece are moved to. By this movement of the operating piece, the first link engaging with the inclined groove of the operating piece is rotated, and the shutter is lowered via the second link to bring the contact portion into contact with the floor surface, and the outer surface of the lower end of the shutter is abutted. Abut the part. Next, when the door body is opened, the pressure on the pressed portion is released, and the actuating member and the actuating piece are restored and moved in the hinge direction by the urging force of the pressing spring. Then, the first link that engages with the inclined groove of the operating piece is rotated in the restoring direction, and the shutter is lifted through the second link to form a space between the floor surface and the contact portion of the shutter.

[0043]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. (1) is a main body of a door, which is an opening of a general house, a store, a factory or other houses, such as an entrance, a room or a bathroom. To the frame body (2) fixed to the frame, a hinge (9) or other appropriate connector or door closer
It is openably and closably connected via (not shown) or the like. Also,
The door body (1) is provided with a latch (not shown) that engages with a strike (not shown) of the frame body (2) on the opening side opposite to the hinge (9), and the door body (1) is provided. It keeps the closed state of 1) and has a lock function. In addition, for the purpose of barrier-free, the house as described above is formed flat without forming a step on the floor surface (3) inside and outside the door body (1), and the frame body (2) connecting the door body (1) is formed. ), The bottom frame (4) without steps
It is the same as (3).

On the side of the door body (1), as shown in FIGS. 1 to 5, a storage portion (5) is provided in the length direction of the lower end, and inside the storage portion (5), the door can be moved up and down. It houses a shutter (6) of the same length as the main body (1). This shutter (6)
The contact portion (7) is formed by widening the lower end to increase the surface area and connecting an elastically deformable rubber watertight member to the lower end. Then, when the shutter (6) descends, the contact portion (7) is brought into contact with the floor surface (3) so that the gap between the door body (1) and the floor surface (3) can be closed. Also, floor surface (3)
Even if there is some unevenness, the contact portion (7) elastically deforms and absorbs the unevenness, so that high sealing performance can be obtained.

However, if the floor surface (3) is made of tiles or bricks and has a large unevenness in unevenness, or if the carpet is permeable to air, then the elastic deformation force of the contact portion (7) cannot be eliminated. ,
Watertightness and airtightness may be impaired. Therefore, in this embodiment, at the lower end of the frame body (2) connecting the door body (1),
A flat lower frame (4) made of wood, metal, hard resin, or the like is arranged, and the lower frame (4) is brought into contact with the contact portion (7) to enable excellent sealing performance. Further, the frame body (2) is provided with tight members on both sides and the outer periphery of the upper part to form an abutting portion (8) for abutting the door body (1), and the door body (1) and the frame body (2) are The degree of adhesion of is improved.

The shutter (6) is provided with a side wall (10) of the same length as the door body (1) toward the abutting portion (8) of the frame body (2) as shown in FIGS. The side wall (10) is provided in FIG.
As shown in FIG. 5, the housing 5 projects from the side surface and is arranged on the outer surface of the door body 1. On the other hand, the door body (1) has a storage step portion (12) in which the outer periphery of the lower end is recessed so that the side wall (10) can be stored and arranged.
Is provided. Then, as shown in FIGS. 5 and 7, the door main body
When (1) is closed and abutted against the abutting part (8), the side wall (10) is pressed and stored in the storage stepped part (12), and the outer surface of the side wall (10) and the door body (1). The dimensions are set so that the outer surface is flush with the outer surface.

However, as shown in FIG. 6, the side wall (10) is designed to project toward the abutting portion (8) on the open side, but not on the hinge (9) side. In order to prevent this protrusion on the hinge (9) side, as shown in FIGS. 2 and 3, the hinge of the shutter (6) is
The (9) side is pivotally supported by the pivotal support (11). This pivot is
It does not interfere with the vertical movement of the shutter (6),
With 1) as a fulcrum, the shutter (6) moves up and down and reciprocates toward the abutting part (8), and the side wall (10) can be projected to the opening side and stored in the storage step (12). Becomes

Next, the control mechanism for the vertical movement of the shutter (6) will be described in detail. First, in the door body (1), the storage part (5)
In the length direction of the inner surface of the cylinder, as shown in FIG.
And a piston (14) is slidably inserted in the cylinder portion (13) in the longitudinal direction. This piston
(14) is a hinge in the cylinder part (13) as shown in FIG.
The urging spring (15) having a pressing force disposed on the (9) side is pressed and urged toward the opening side of the door body (1).

Further, as shown in FIGS. 1 and 2, the piston (14) has a first magnet (16) at the tip of the opening side of the door body (1) opposite to the urging spring (15). Are arranged.
On the other hand, when closing the door body (1) on the frame body (2),
A second magnet (17) is fixedly arranged at a position facing the first magnet (16) of the piston (14). The second magnet (17) and the first magnet (16) are shown in FIG.
As shown in FIG. 7, the S poles are opposed to each other so that repulsive forces are generated between them. This repulsive force is due to the piston (14)
Is made stronger than the pressing biasing force of the biasing spring (15) for pressing and biasing the piston (14) against the pressing biasing force of the biasing spring (15) by this repulsive force. It is supposed to be movable in the direction of the hinge (9) on the opposite side.

The piston (14) has a third magnet (16) between the first magnet (16) and the urging spring (15).
(20) is arranged, and the fourth magnets (21) and (22) corresponding to the third magnet (20) are connected to the third magnet (20).
It is arranged above and below the shutter (6). Then, the third magnet (20) and the fourth magnet
(21) Due to the action of repulsive force or attractive force of (22), the shutter
It enables the vertical movement of (6).

In this embodiment, each third magnet is used.
The (20) and the fourth magnets (21) and (22) are each composed of two magnet bodies (24), (25) and (26). With this configuration, as the piston (14) moves, the third magnet (2
0) reciprocates toward the opening side and the hinge (9) side of the door body (1), at the destination, as shown in FIGS. 2 and 3.
At least one of the magnet bodies (24) of the third magnet (20) can surely face at least one of the magnet bodies (25) and (26) of the upper and lower fourth magnets (21) and (22). Then, a repulsive force or an attractive force is always applied between the third magnet (20) and the upper and lower fourth magnets (21) and (22).

Further, the third magnet (20) and the fourth magnet (21) (22) may be provided as a single set, but in this embodiment, the hinge (9) of the door body (1) is used. A total of two sets are arranged on the side and the open side to strengthen the magnetic force, and the magnetic force acts in a well-balanced manner to enable smooth vertical movement of the shutter (6). Further, the shutter (6) is provided with a cushioning member (23) such as urethane on the contact side with the cylinder part (13), and the shutter (6) and the door body (when the shutter (6) moves up and down ( The shock applied to 1) is buffered to prevent damage to parts and noise.

Then, the first to fourth magnets (16)
(17) (20) (21) (22) controls the shutter
A mechanism for vertically moving (6) to seal the door body (1) will be described in detail. First, the shutter (6) when opening the door body (1)
3 and 4 and 6, the repulsive force of the second magnet (17) does not act on the first magnet (16), and the piston (14) pushes the urging spring (15). By the door body
It is biased toward the open side of (1). This piston (1
At the position 4), one and the other two magnets of the third magnet (20) are provided at the N pole and the S pole of the upper surface of the two magnet bodies (24). Magnet body
The north and south poles of (25) face each other, and the repulsive force is acting. Also, the other magnet body (24) of the third magnet (20)
The north pole of the lower surface is opposed to the south pole of one magnet body (26) of the lower fourth magnet (22), and attractive forces act on each other.

Due to the action of repulsive force and attractive force between the third magnet (20) and the fourth magnets (21) and (22),
Since the shutter (6) rises and is stored in the storage section (5), a gap is formed between the door body (1) and the floor surface (3). Therefore, when opening the door body (1) or during closing,
The door body (1) can be smoothly opened and closed without dragging the shutter (6). Also, the third magnet (20)
And because the 2 sets of 4th magnets (21) and (22) are provided, even if some shock is applied to the door body (1), the shutter will be released.
(6) does not descend easily, and can maintain an ascending state.

The fourth magnet (22) on the lower side is
In the width direction, as shown in FIG. 4, it is arranged at a position displaced from the upper side fourth magnet (21) in the direction opposite to the abutting portion (8). With this arrangement, when the third magnet (20) and the lower fourth magnet (22) are fixedly attached when the door body (1) is released, as shown in FIG. 4 and FIG. (6) is abutting part (8) via shaft support (11)
The side wall (10) protrudes toward the abutting portion (8) on the opening side.

Next, the door body (1) is closed to the frame body (2),
A process of lowering the shutter 6 will be described with reference to FIGS. 1, 2, 5, and 7. When closing the door body (1),
In the abutting part (8) of the frame body (2), before the door body (1),
The side wall (10) of the shutter (6) protruding outward hits. In this state, when the door body (1) is pushed toward the abutting part (8) by human power or the force of the door closer, only the door body (1) moves the side wall (10) into the storage step part (12). It moves in the direction of the abutting portion (8) while being pressed and stored.

When the side wall (10) is butted, the door body is
(1) is not completely closed, but the first of the door body (1)
The magnet (16) and the second magnet (17) of the frame body (2)
Since and are close to each other, a magnetic force acts to generate a strong repulsive force between them. Due to this repulsive force, the piston (14) may move in the hinge (9) direction against the pressing biasing force of the biasing spring (15).

The movement of the piston (14) also moves the third magnet (20) of the piston (14) as shown in FIG. 2, but at the destination of the movement, one magnet body of the third magnet (20) is moved. (24) The N pole on the upper surface is opposed to the S pole of the other magnet body (25) of the upper fourth magnet (21), and attractive force acts. In addition, the S pole and the N pole on the lower surface of one and the other magnet body (24) of the third magnet (20) are connected to the fourth magnet on the lower side.
Since the S pole and the N pole of one and the other magnet body (26) of the magnet (22) face each other, a strong repulsive force acts.

The attractive force and repulsive force of the third magnet (20) and the fourth magnet (21) (22) as described above causes the shutter (6) to move downward, and as shown in FIG. 5, the contact portion (7) at the lower end.
Sticks to the surface of the lower frame (4) while elastically deforming. Then, when the door body (1) is pushed toward the abutting portion (8) by the force of the human or the door closer with the shutter (6) lowered, the door body (1) stores the side wall (10). It moves in the direction of the abutting part (8) while being pressed and stored in the step part (12). When moving the door body (1), the shutter (6) has already hit the abutting part.
It has reached the (8) side, and the door body (1) and shutter (6)
And are rotatable with respect to each other via the shaft support (11),
It is possible to smoothly move only the door body (1) and surely abut against the abutting portion (8). The reliable butting against the abutting portion (8) enhances the hermeticity between the door body (1) and the frame body (2), and a latch (not shown) protruding from the end surface of the door body (1). Engages with a strike (not shown) of the frame body (2), so that the door body (1) is not opened carelessly and a reliable closed state is maintained.

In this way, the shutter (6) is attached to the abutting portion (8).
By projecting to the side, even if the shutter (6) descends before closing the door body (1), the shutter (6) is not dragged and the closing operation of the door body (1) is performed smoothly. In addition to being able to do so, the door body (1) can be securely closed. Further, since the side wall (10) of the shutter (6) is pressed and stored in the storage step (12) of the door body (1), the outer surface of the door body (1) and the outer surface of the side wall (10) are flush with each other. It comes into close contact with the abutting part (8). Therefore, the door body (1) and the side wall (10) and the abutting part (8)
It is possible to prevent the formation of a gap between the door body and the airtightness and watertightness as well as to provide the door body (1) with sound insulation and light shielding properties.

Further, when the opening operation of the door body (1) is performed again, the repulsive force between the first magnet (16) and the second magnet (17) is released, and the piston (14) is urged to move (15). It is pressed and urged to restore and move toward the opening side of the door body (1). As described above, the repulsive force and attractive force relationship between the third magnet (20) and the fourth magnets (21) and (22) is reversed by the movement of the piston (14), and the shutter (6) rises. Also, when the shutter (6) is raised, the third
When the magnet (20) and the fourth magnet (22) on the lower side are fixed to each other, the side wall (10) accommodated in the accommodating step (12) is abutted with the abutment (8) as shown in FIG. ), And can be prepared for the next closing operation.

In the above embodiment, the third and fourth magnets (20), (21) and (22) each have two magnet bodies (24).
(25) and (26) are used so that repulsive force or attractive force is always applied between the third magnet (20) and the fourth magnets (21) and (22). However, as another different embodiment, one magnet body (24) (25) (26) is used, and the third magnet (20) is repulsive with either one of the upper and lower fourth magnets (21) (22). Alternatively, an attractive force may be applied. Further, in the above-mentioned embodiment, the fourth magnets (21) and (22) are arranged above and below the third magnet (20), but only one of them may be arranged above and below. Also,
The up and down movement of the shutter (6) is also performed by the action of the repulsive force and the attractive force of the third magnet (20) and the fourth magnets (21) and (22), but it may be performed by the action of either the repulsive force or the attractive force. Alternatively, the action of repulsive force or attractive force may be released. Also, the third magnet (20) and the fourth magnet
(21) and (22) may be arranged in three or more sets.

Further, in this embodiment, the piston (14) is pressed and biased toward the opening side of the door body (1) by the biasing spring (15) having a pressing force, and the first magnet (16) and the first magnet (16) are moved. 2 Piston (14) is hinged (9) by repulsive force with magnet (17).
It is possible to move to the side. However, as another different embodiment, the piston (14) is provided with a biasing spring (15) having a pulling force.
Is pulled and urged in the hinge (9) direction by the
The piston (14) may be movable in the opening side direction of the door body (1) by the attractive force of (16) and the second magnet (17). Also, the first magnet (16) and the second magnet
(17) is not the opening side of the door body (1), but the door body (1)
It may be provided on the hinge (9) side, and the piston (14) can reciprocate.

Further, in the first embodiment, the shutter is
Although a magnet is used for the vertical movement means of (6), in another different second embodiment shown in FIGS. 8 and 9, the leaf spring (2
The elastic force of 7) is used. Its structure is the door body (1)
A rod-shaped actuating body (28) is arranged so as to be able to advance and retreat in the left-right direction in the length direction of the inner surface of the accommodating portion (5).
The leaf springs (27) are connected in a state of being bent in two semicircular shapes. The leaf spring (27) has one end on the hinge (9) side and the center side fixed to the actuating body (28), but the other end on the opening side is not fixed and is slidably connected. . And the leaf spring (2
7) The actuator (28) is pressed and urged toward the hinge (9) by 7),
One end projects from the end surface of the door body (1) to form a pressed portion (30) that can abut against the inner surface of the frame body (2). Also, the two support rods (31) provided on the shutter (6) are attached to the leaf springs.
The shutter (6) is suspended by the leaf spring (27) by engaging with (27).

When the door body (1) is opened, the operating body is
The pressed part (30) of (28) is not pressed against the inner surface of the frame body (2), and the leaf spring (27) exerts an urging force to restore the extension direction. As shown
(28) is pressed and biased toward the hinge (9), and the pressed portion (30)
Project outside from the end face of the door body (1). Also, due to the restoring action of the leaf spring (27), the shutter (6) suspended by the leaf spring (27) is lifted up, and the shutter is released.
There is a gap between (6) and the floor surface (3). Next, when the door body (1) is closed, the pressed portion (30) of the actuating body (28) hits the inner surface of the frame body (2), and the pressed portion follows the closing operation of the door body (1). Since the (30) is pressed toward the inside of the door body (1), the actuating body (28) moves in the opening direction. By this movement, as shown in FIG. 9, the semi-circular leaf spring (27) is compressed and further bent, so that the shutter (6) suspended on the leaf spring (27) is lowered and the shutter (6 The lower surface of () contacts the lower frame (4) to close the gap.

Further, in the shutter (6) of the second embodiment and the third and fourth embodiments shown below, as in the first embodiment,
A side wall (10) is provided in the direction of the abutting part (8) of the frame body (2), and the side wall (10) can be moved up and down into a storage step part (12) recessed in the outer periphery of the lower end of the door body (1). The outer surface of the side wall (10) can be brought into close contact with the abutting portion (8) of the frame body (2) when the door body (1) is closed. However, in the first embodiment, the side wall (10)
Is projected to the abutting portion (8) side, and is reciprocally slidable in the direction of the protruding portion (8). In the second to fourth examples, the side wall is provided.
(10) is not projected, and only the vertical movement within the storage step portion (12) is performed.

Further, in the third embodiment shown in FIGS. 10 and 11, on both sides of the actuating body (28), not the leaf spring (27) but the taper pressing surface (32) with the hinge (9) side facing downward. The pressing body (33) provided on the lower surface is connected and fixed. On the other hand, the shutter (6) is connected to a receiving portion (35) provided with a tapered pressed surface (34) which engages with the tapered pressing surface (32) of the pressing body (33). Further, the shutter (6) is urged upward by the two tension springs (36) connected to the storage section (5), and when the door body (1) is opened, the shutter (6) is raised. Floor (3)
It is possible to prevent the dragging when the door body (1) is opened and closed by maintaining the distance between the door body and the door body.

When the closing operation of the door body (1) is performed,
Since the pressed portion (30) of the actuation body (28) hits the frame body (2) and is pressed, the actuation body (28) moves to the open side. By this movement, the taper pressing surface of the pressing body (33)
Since the (32) presses the tapered pressed surface (34) of the receiving portion (35), the shutter (6) is pressed down against the urging force of the tension spring (36), and the floor surface (3) is pressed. It comes into contact and closes the gap. Further, when the door body (1) is opened again, the pressing force of the actuating body (28) is released.
The shutter (6) rises due to the urging force of (36), and the taper pressed surface of the receiving portion (35) is opposite to that when it is closed.
Since the (34) presses the taper pressing surface (32) of the pressing body (33), the actuating body (28) is restored and moved in the hinge (9) direction, and the pressed portion (30) projects to the outside.

Further, in the fourth embodiment shown in FIGS. 12 to 13, the first chamber (37) and the second chamber separated by the partition wall (40) are provided in the storage part (5) of the door body (1). (38) is provided and actuating body
(28) is inserted so that it can move forward and backward. This actuation body (28)
Fixes the annular flange (39) to the hinge (9) side of the first chamber (37) by projecting and fixing the first flange between the annular flange (39) and the partition wall (40).
The pressing bar (41) is inserted and arranged. In addition, the second chamber (3
8) is a box-shaped operating piece (43) that can move forward and backward and cannot move up and down.
Is arranged, and one end on the opening side of the actuating body (28) is provided with the actuating piece (43).
The rod (44) is inserted through the inside of the actuating body (28) so as to be able to advance and retreat, and the retaining rod (44) is penetratingly connected to the tip of this actuating body (28) from the orthogonal direction to allow the actuating body (28) to move forward and backward, It prevents them from coming off and connects them to each other. Also, the second chamber (38)
Is a second pressing bar having a pressing force smaller than that of the first pressing bar (41) between the operating piece (43) and the partition wall (40).
(42) is inserted and arranged to enable the pressing force of the operating piece (43).

Further, in the second chamber (38), a first link (47) is pivotally supported on the opening side so as to be reciprocally slidable in a seesaw shape via a second pivotal support portion (50). A second link (51) is rotatably supported at the open end of (47) via a third shaft support (52). And this second link (5
Shutter the lower end of 1) through the fourth shaft support (53).
By pivotally supporting (6), the first link (47)
The second link (51) moves up and down in conjunction with the sliding of the shutter (6), which allows the shutter (6) to move up and down. Also, the first link
(47) inserts the tip on the hinge (9) side into the operating piece (43), and the engaging protrusions (48) provided on both sides of the tip are attached to both side walls (45) of the operating piece (43). It engages with an inclined groove (46) inclined with respect to the axial direction of the actuating body (28). This inclined groove
(46) is inclined so that the hinge (9) side is upward and the opening direction is downward, and the engaging projection (48) of the first link (47) is an inclined groove.
By sliding inside (46), the first link (47) becomes the second
It slides like a seesaw around the shaft support part (50).

Then, when the door body (1) is opened, as shown in FIG.
2. As shown in FIG. 13, the actuating body (28) has the first pressing bar.
By the pressing biasing force of (41), it is pressed and biased in the hinge (9) direction, and the pressed portion (30) at the tip is largely projected to the outside. Also, the operating piece (43) connected to this operating body (28)
Also, the second pressing force (41) is smaller than the second pressing spring (41).
It is located on the hinge (9) side while compressing the pressing spring (42). At the position of this operating piece (43), the engaging protrusion (48) of the first link (47) engaged with the inclined groove (46) is
Located at the lower end of (46), the first link (47) is kept horizontal. Then, the first link (47) and the second link
The shutter (6) connected via the link (51) is located above and has a gap with the floor surface (3).

Next, when the closing operation of the door body (1) is performed, the pressed portion (30) of the actuating body (28) is pressed against the inner surface of the frame body (2), and as shown in FIG. , Actuator (28)
Moves to the open side while contracting the first pressing bar (41) via the annular collar (39). Along with the movement of the operating body (28), the pressing biasing force of the second pressing bar (42) acts, and the operating piece
Since (43) moves to the open side, the engaging protrusion (48) of the first link (47) relatively moves to the upper side of the inclined groove (46). Therefore, since the first link (47) is inclined with the hinge (9) side facing upward through the second shaft support (50), the second link (5)
The open side connected to 1) is lowered, and the shutter 6 is lowered via the second link 51. And the shutter
The lowering of (6) closes the gap between the door body (1) and the floor surface (3).

Further, the effect that the operating piece (43) and the operating body (28) are not fixed as in the present embodiment and are inseparable but movable separately from each other will be described below. In this embodiment, the engaging protrusion (48) of the first link (47) is formed in the inclined groove (46).
When the shutter (6) is positioned at the top of the floor, the shutter (6) comes into contact with the floor surface (3). The size of the door body (1) and the floor surface (3) should be smaller than the dimensions planned at the time of production. Even if the interval is narrow, the vertical movement means can be operated smoothly. That is, the actuating body (28) is pressed by the frame body (2) and moves at a constant distance, but since the actuating body (28) and the actuating piece (43) are not fixed, the actuating piece (43) is , The engaging protrusion of the first link (47)
While pushing up (48), it is independently moved to the open side by the pressing biasing force of the second pressing bar (42). Then, the shutter (6) is gradually lowered by the action of the first and second links (47) and (51), but before the engagement protrusion (48) reaches the uppermost portion of the inclined groove (46), the shutter (6) When 6) reaches the floor surface (3), the rotation of the second and first links (51) and (47) is stopped, and the movement of the operating piece (43) is also stopped. This working piece (43)
Even if the movement of the actuator is stopped, the actuating body (28) can move independently, so that the movement of the actuating body (28) is not blocked, and the pressed portion (30) is inside the door body (1). The door body (1) can be securely retracted and closed.

In this way, the second pressing bar (42) and the operating piece are
Since it is possible to finely adjust the descending amount of the shutter (6) by (43), the size and moving distance of the actuating body (28), the inclined groove
It is not necessary to strictly perform the dimension and position adjustment of the members of the vertical movement means such as the length of (46), the manufacturing is easy, and it is necessary to form another type of vertical movement means according to the amount of the gap. There is no need for mass production.

[0075]

Since the present invention is configured as described above, in a door body connected to a building having a flat floor surface for the purpose of barrier-free, a shutter housed at the lower end of the door body. By lowering and touching the contact part to the floor surface, the gap between the door body and the floor surface or the lower frame can be surely closed, and the outer surface of the lower end of the shutter can be securely attached to the abutting part of the frame body. Can be brought into contact with. Therefore, it is possible to surely prevent the formation of the gap in the door body, and to obtain a highly reliable water-tightness and air-tightness as well as a sealing device excellent in sound insulation and light shielding. Further, it is possible to easily manufacture the sealing device without requiring strict work precision.

As described above, since the opening / closing door sealing device of the present invention is excellent in watertightness and airtightness, it can be installed in both the outdoor and indoor opening / closing doors. For example, if it is installed on a door for a entrance, a door for a veranda, etc., the outdoor and the indoor are surely cut off, and it is possible to favorably prevent rain wind, dust, etc. from entering the indoor. Further, if it is installed in the indoor door of the living room, bedroom or the like, the airtightness of the room is enhanced, and the cooling and heating efficiency and the sound insulation effect are excellent. If it is installed in a bathroom door or the like, it is possible to prevent water from entering the dressing room and other rooms from the bathroom due to its excellent water tightness.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1, showing a lowered state of the shutter.

FIG. 3 is a cross-sectional view showing a lifted state of a shutter.

4 is a cross-sectional view taken along the line CC of FIG.

5 is a sectional view taken along line BB of FIG.

6 is a side view of FIG.

FIG. 7 is a side view of FIG.

FIG. 8 is a partially cutaway perspective view showing a lifted state of the shutter of the second embodiment.

FIG. 9 is a partially cutaway perspective view showing a lowered state of the shutter of the second embodiment.

FIG. 10 is a partially cutaway perspective view showing a lifted state of the shutter of the third embodiment.

FIG. 11 is a partially cutaway perspective view showing a lowered state of the shutter of the third embodiment.

FIG. 12 is a partially cutaway perspective view showing a lifted state of a shutter according to a fourth embodiment.

13 is an enlarged cross-sectional view of the main part of FIG.

FIG. 14 is an enlarged cross-sectional view showing a lowered state of the shutter of the fourth embodiment.

[Explanation of symbols]

1 door body 2 frame body 3 floor 4 lower frame 5 storage 6 shutter 7 Contact part 8 striking part 9 hinges 10 Side wall 11 Shaft support 12 Storage step 13 Cylinder part 14 pistons 15 Biasing 16 1st magnet 17 Second magnet 20 Third Magnet 21 4th magnet 22 4th magnet 27 leaf spring 28 Actuator 30 Pressed part 32 Taper pressing surface 33 Pressing body 34 Tapered pressed surface 35 Receiver 36 Pulling bar 41 1st press release 43 Working piece 46 inclined groove 47 First Link 48 engagement protrusion 51 Second Link

Claims (14)

[Claims] 1. A door main body is openably and closably connected to a frame main body fixed to a house and provided with an abutting portion of the door main body. The shutter is movably housed, and when the door body is closed, the shutter can be lowered to close the gap between the door body and the floor surface, and when the door body is opened, the shutter is raised to contact the floor surface with the shutter. In the case where a space is formed between the doors, when the door body is closed, the outer surface of the lower end of the shutter that contacts the bottom contact portion with the floor surface is formed so as to be able to contact the abutting portion of the frame body. A device for closing the door. 2. The opening / closing door sealing device according to claim 1, wherein the frame main body is provided with a smooth lower frame flush with the floor surface, and the contact portion of the shutter can be brought into contact with the lower frame surface. . 3. The shutter has a side wall of the same length as the door main body arranged parallel to the outer surface of the door main body in the direction of the abutting portion of the frame main body against which the door main body abuts, and when the door main body is closed, the outer surface of the side wall is closed. The opening / closing door sealing device according to claim 1, wherein the door and the outer surface of the door body are flush with each other. 4. The shutter has a side wall of the same length as the door main body protruding toward the side of the housing in the abutting direction of the frame main body against which the door main body abuts, and is arranged on the outer surface of the door main body. When the side wall is abutted against the abutting part at the time of closing, the side wall is pressed and stored in the storage step part provided on the outer surface of the lower end of the door body,
The opening / closing door sealing device according to claim 1 or 3, wherein the outer surface of the side wall and the outer surface of the door body are flush with each other. 5. The shutter according to claim 1, wherein the hinge side is pivotally supported by a pivotal support portion, and the shutter is capable of reciprocating in the abutting portion direction of the frame body with the pivotal support portion as a fulcrum. Sealing device for opening / closing door of 4. 6. The shutter vertical movement means is provided with an accommodating portion in a length direction of a lower end of a door body, a cylinder portion is projected in a length direction of an inner surface of the accommodating portion, and a piston is slidably inserted into the cylinder portion. Then, the piston is biased to one side or the other by the biasing spring, and the first magnet is arranged at the tip of the piston on the side opposite to the biasing spring, and the frame body at a position corresponding to the first magnet. In addition, the repulsive force or the attractive force stronger than the urging force of the urging spring causes the first direction in the direction opposite to the urging direction.
The second magnet acting on the magnet is arranged, the third magnet is arranged on the piston at a space between the first magnet and the biasing spring, and the fourth magnet corresponding to the third magnet is arranged on the shutter. When it is closed to the frame body, the piston slides in the direction opposite to the urging direction by the action against the urging spring due to the repulsive force or attractive force of the first magnet and the second magnet, When the repulsive force or the attractive force or the repulsive force or the attractive force is released, the shutter is lowered to bring the contact portion into contact with the floor surface, and the lower end outer surface of the shutter is brought into contact with the abutting portion,
When the door body is released from the frame body, the action of the first magnet and the second magnet is released, and the piston is restored and slid to one side or the other side by the urging force of the urging spring, and the repulsive force of the third and fourth magnets or The release of the attractive force or the repulsive force or the attractive force raises the shutter to form a gap between the floor surface and the contact portion of the shutter.
4 or 5 opening / closing door sealing device. 7. The sealing device for an opening / closing door according to claim 6, wherein the fourth magnet of the shutter is arranged above and below via the third magnet. 8. The opening / closing door sealing device according to claim 6, wherein the fourth magnet of the shutter is arranged so as to face an upper portion of the third magnet. 9. The closing device for a door according to claim 6, wherein the fourth magnet of the shutter is arranged so as to face a lower portion of the third magnet. 10. A plurality of third magnets of the piston and a plurality of fourth magnets of the shutter corresponding to the third magnets are arranged in plural in the length direction.
Sealing device for open / close door of 7, 8 or 9. 11. The shutter has a fourth magnet arranged above and below via a third magnet, and the upper and lower fourth magnets face the third magnet of the piston when the door body is opened. The fourth magnet on the lower side is arranged, and the third magnet and the fourth magnet on the lower side are fixed by attractive force to raise the shutter, and in this raised state, the side wall is framed from the storage step of the door body. When the door body is closed, the fourth magnet on the upper side of the shutter is arranged so as to face the third magnet of the piston when the door body is closed, and the third magnet and the fourth magnet on the upper side are arranged. The feature is that it is fixed by the attractive force and the shutter is lowered, and in this lowered state, the side wall is stored in the storage step and the side wall and the door body are flush with each other. Claims 3, 4, 5, 6, 7,
Sealing device for 8, 9 or 10 open / close doors. 12. The vertical movement means of the shutter has an actuating member arranged so as to be able to reciprocate in the longitudinal direction of the housing portion of the door body, and one end of the semi-circular leaf spring is fixed to the actuating member and the other end is slidable. Movably connected, and the leaf urging force urges the actuating body toward the hinge side so that one end protrudes from the end face of the door body toward the hinge side to form a pressed portion that can abut against the inner surface of the frame body. , The shutter is connected to the lower end of the semi-circle of the leaf spring, and when the door body is closed, the frame body pushes the pressed portion to move the operating body in the direction opposite to the biasing direction of the leaf spring. Due to the downward bending of the leaf spring that occurs, the shutter is lowered to bring the contact portion into contact with the floor surface, and the outer surface of the lower end of this shutter is brought into contact with the abutting portion. The pressure is released and the actuating body is restored and moved in the hinge direction by the pressing force of the leaf spring. 6. The opening / closing door sealing device according to claim 1, wherein the shutter is lifted by the restoring action of the leaf spring to form a gap between the floor surface and the contact portion of the shutter. 13. The vertical movement means of the shutter has an actuating member arranged so as to be capable of reciprocating in the lengthwise direction of the housing portion of the door body. The pressing body is connected and fixed, and the receiving portion provided with the tapered pressed surface that engages with this tapered pressing surface is connected and fixed to the shutter, and this shutter is urged upward by a pulling spring and one end of the operating body Is a pressed part that can be abutted against the inner surface of the frame body by protruding from the end face of the door body to the hinge side.When the door body is closed, the frame body presses the pressed portion to move the operating body, By pressing the taper pressed surface of the receiving part with the taper pressing surface of the receiving part, the shutter is lowered against the tensile urging force of the tension spring and the contact part comes into contact with the floor surface, and the outer surface of the lower end of this shutter is abutted. The door body When the is released, the pressure on the pressed part is released, and the shutter is lifted by the tension biasing force of the tension spring to form a gap between the floor surface and the contact part of the shutter, and the actuator is restored in the hinge direction. The opening / closing door sealing device according to claim 1, wherein the device is movable. 14. The shutter up-and-down moving means has an actuating body arranged so as to be capable of reciprocating in the lengthwise direction of the housing portion of the door body, and the actuating body is urged toward the hinge side by a pressing spring to make one end of the door body. From the end face to the hinge side to form a pressed part that can abut against the inner surface of the frame body, and connect the operating piece to one end on the open side of the operating body, and to this operating piece, in the axial direction of the operating body. Is provided with an inclined groove, and the engaging protrusion of the first link rotatably supported in the storage portion is slidably engaged with the inclined groove,
A second link is rotatably supported at the other end of the first link, and a shutter is supported at the lower end of the second link. When the door body is closed, the frame body presses the pressed portion. The actuating body and the actuating piece are moved in a direction opposite to the urging direction of the pressing bar, the first link engaging with the inclined groove of the actuating piece is rotated, and the shutter is lowered through the second link to make contact. Part of the shutter comes into contact with the floor surface, the outer surface of the lower end of the shutter abuts against the abutting part, and when the door body is opened, the pressing of the pressed part is released, and the actuating member and actuating piece are actuated by the urging force of the pressing bar. And the hinge are restored in the hinge direction, the first link is rotated in the restore direction, and the shutter is lifted through the second link to form a gap between the floor surface and the contact portion of the shutter. The closing device for an opening / closing door according to claim 1, 3, 4, or 5.