JPH1096379A - Airtight device of fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an airtight device of a fitting which is high in durability. SOLUTION: An airtight device for a fitting has a mounting member 15 provided on the bottom 3 of a door 2. The first end 16a of a closing element 16 is connected by a hinge connecting piece 20 to one side 15a of the mounting member 15 in such a way as to be capable of rocking. A rock drive means 17 is provided in association with the mounting member 15 and the closing element 16 and has an operating piece which faces one cross end of the door 2. When time door 2 is closed, the operating piece is displaced inward in the cross direction of the door 2 and thereby a loose end 16b is driven and rocked by a magnetic force in such a way as to fall. When the door 2 is being opened, the operating piece is returned outward in the cross direction of the door 2 and thereby the loose end 16b is driven and rocked by the magnetic force in such a way as to rise.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fitting airtightness device for shielding a gap formed below a fitting when a fitting such as a door provided at an entrance is closed.

[0002]

2. Description of the Related Art In order to open and close an entrance of a house or the like, for example, a door is provided at one end in the width direction so as to be angularly displaceable. The doorway floor is provided with a sill, which has an upwardly raised projection that positions the door when the door is closed. This swelling is about 20 to 3 above the floor.
Since it protrudes by 0 mm, there is a possibility that an elderly person or the like may trip over. Therefore, there is a tendency that the shampoo is buried in the floor and its upper surface is flush with the floor surface, or the shampoo is eliminated.

In such a case, when the door is closed in consideration of, for example, distortion due to aging of the door, the door is closed between the lower end surface of the door and the sword or between the lower end surface of the door and the floor surface. Between at least about 4mm vertically
Doors are provided at intervals. When a gap is formed below the door in this manner, a draft is passed through. Therefore, an airtight device is provided below the door to prevent the draft.

The airtight device includes a mounting member housed in a mounting groove extending in a width direction of the door at a lower portion of the door, a shield slidably moved up and down by the mounting member, a mounting member and a shield. A lifting / lowering drive means provided in connection with the body to drive the shield up / down. The lifting drive means includes an operating piece provided facing one end in the width direction of the door, a moving body connected to the operating piece, and a long spring member connecting the shielding body and the moving body.

The operating piece protrudes from one end in the width direction of the door, and when the door is closed, one end in the width direction of the door comes into contact with a fixed position of a pillar to which the door is connected so as to be angularly displaceable.
It is displaced inward in the width direction of the door. The moving body is provided on the mounting member so as to be movable in the width direction of the door. When the operating piece is displaced, the moving body moves in the width direction of the door in conjunction therewith. One end of the spring member is connected to the shield, and the other end is connected to the moving body. In a state where the door is closed, the operating piece is displaced inward in the width direction of the door, and the moving body moves accordingly, whereby the spring member applies a spring force in a direction to lower the shield, and the shield is moved. The free end of the body abuts the squeeze or floor to block the gap between the door and the squeeze or the gap between the door and the floor. When the door is opened, the operating piece does not come into contact with the fixed position, the operating piece returns to the outside in the width direction of the door, and the moving body moves accordingly, whereby the moving member moves to the shield by the spring member. Is released, and the shield is raised.

[0006]

In such a prior art, the shield is driven up and down by the spring force of a spring member having one end connected to the shield and the other end connected to the moving body. . The spring member may be deteriorated or damaged by aging or repeated up-and-down driving, and has low durability. Eventually, the durability of the airtight device will be reduced.

It is therefore an object of the present invention to provide a highly durable fitting airtight device.

[0008]

According to the present invention, a free end is provided at a lower part of a fitting so as to be able to move up and down, and a fitting extending in the width direction of the fitting and a fitting are closed in conjunction with opening and closing of the fitting. And the displacement driving means for displacing the shield so that the free end of the shield is lowered by the magnetic force and the free end of the shield is raised by the magnetic force when the fitting is opened. It is an airtightness device of a fitting characterized by including. According to the present invention, a shield is provided below the fitting so as to be able to move up and down its free end. When the fitting is closed, the shield is driven up and down by magnetic force so that the free end is lowered. This allows the free end of the shield to abut the floor or sill under the fitting when the fitting is closed. Therefore, for example, like a home for the elderly, eliminate the steps at the entrance,
Alternatively, in order to reduce the size, a gap formed below the fitting can be shielded. The shield is driven up and down by magnetic force so that the free end rises when the fitting is opened. Thus, when the fitting is opened, the free end of the shield is separated upward from the floor or the sword, and the opening and closing operation of the fitting is not hindered. Since the shield that can shield the lower part of the fitting only when the fitting is closed is driven by the magnetic force, the driving force does not decrease due to aging or repeated vertical movement. Therefore, it is possible to improve the durability of the lifting / lowering drive means, and thus the durability of the airtight device.

The present invention also provides a long mounting member provided at a lower portion of a fitting and extending in the width direction of the fitting, and a shield having a free end provided on the mounting member so as to be movable up and down and extending in the width direction of the fitting. And an operating piece provided in connection with the mounting member and the shield, and provided facing the width direction end of the fitting, and a movement that is provided movably in the width direction of the fitting and is linked to the operating piece and interlocked therewith. Driving means for driving the shield corresponding to the body, wherein the operating piece abuts on a fixed position and is displaced inward in the width direction of the fitting when the fitting is closed, and the driving means A magnetic pole part formed on the body facing the moving body, and a magnetic pole part formed on the moving body,
When the operating piece is in the first position in which the operating piece contacts the fixed position and is displaced inward in the width direction, the magnetic pole portion faces the magnetic pole portion of the shield and has the same polarity as the magnetic pole of the shield; When the piece is in the second position not in contact with the fixed position, the shield has a magnetic pole portion facing the magnetic pole portion of the shield and having a different polarity from the magnetic pole portion of the shield. And a displacement driving means for displacing the free end so that its free end moves up and down. According to the present invention, a mounting member is provided at the lower part of the fitting, and the shield is provided on the mounting member so that the free end thereof can move up and down. The displacement drive means for driving the shield has a drive means, and the drive means is provided on the shield with a magnetic pole portion formed facing the moving body, and formed on the moving body, and the operating piece is positioned at a fixed position. When in contact with and at the first position displaced inward in the width direction, the magnetic pole portion of the shield faces the magnetic pole portion of the shield, and the magnetic pole portion having the same polarity as the magnetic pole of the shield and the operating piece abut on the fixed position. When in the second position, which is not in position, it has a magnetic pole portion facing the magnetic pole portion of the shield and having a different polarity from the magnetic pole portion of the shield.
Thus, when the fitting is closed, the shield is driven up and down so that the free end is lowered by the magnetic repulsion between the magnetic pole of the shield and the magnetic pole of the moving body. This allows the free end of the shield to abut the floor or sill under the fitting when the fitting is closed. Therefore, for example, in a housing for the elderly, a gap formed below a fitting can be shielded in order to eliminate or reduce a step at an entrance. When the fitting is opened, the shield is driven up and down so that the free end is raised by the magnetic attraction between the magnetic pole of the shield and the magnetic pole of the moving body. Thus, when the fitting is opened, the free end of the shield is separated upward from the floor or the sword, and the opening and closing operation of the fitting is not hindered. Since the shield that can shield the lower part of the fitting only when the fitting is closed is driven by the magnetic force, the driving force does not decrease due to aging or repeated vertical movement. Therefore, it is possible to improve the durability of the displacement driving means and, consequently, the durability of the airtight device.

Further, according to the present invention, the shield has a pair of sandwiching pieces, a base end of which is swingably provided on one side of the mounting member, and each of the magnetic poles is provided with a permanent magnet piece. The permanent magnet piece formed in this manner and provided on the shield is fitted between the sandwiching pieces of the shield and is sandwiched from the side. According to the present invention, the shield is provided such that the base end is swingable on one side of the mounting member. Thus, the vertical movement distance of the free end depends on the dimension in the width direction of the shield, but not on the vertical dimension of the shield. Therefore, the vertical dimension of the whole airtight device can be reduced. Each magnetic pole portion is formed by providing a permanent magnet piece.
The permanent magnet piece can be fixed by, for example, an adhesive, and the magnetic pole portion can be easily formed.
Further, the permanent magnet piece provided on the shield is fitted into each holding piece of the shield and is held from the side. Thereby, the permanent magnet piece provided on the shield can be firmly fixed.

Further, according to the present invention, the mounting member has a substantially inverted U-shaped cross section, and the shield is held by the mounting member so as to be able to move up and down. A magnetic pole portion is formed, the moving body is provided movably above the shield, and a permanent magnet piece is fixed to form the magnetic pole on the moving body. According to the present invention, the shield is held by a mounting member having a substantially inverted U-shaped cross section so as to be able to move up and down, and a permanent magnet piece is fixed to the upper portion to form the magnetic pole portion on the shield. The moving body is provided movably above the shield, and a permanent magnet piece is fixed to the moving body to form the magnetic pole on the moving body. Thus, the direction in which the attractive force or the repulsive force acts on each magnetic pole portion is parallel to the moving direction of the shield, and the attractive force and the repulsive force can be efficiently used as the driving force of the shield. Each magnetic pole portion is formed by providing a permanent magnet piece. The permanent magnet piece can be fixed by, for example, an adhesive, and the magnetic pole portion can be easily formed.

Further, according to the present invention, the mounting member has a substantially inverted U-shaped cross section, and the shield is held by the mounting member so as to be able to move up and down. The magnetic pole portion is formed, the moving body is provided movably on a side of the shield, and a permanent magnet piece is fixed to form the magnetic pole on the moving body. According to the present invention, the shield is held by a mounting member having a substantially inverted U-shaped cross section so as to be able to move up and down, and a permanent magnet piece is fixed to a side portion to form the magnetic pole portion on the shield. . The movable body is provided movably on the side of the shield, and a permanent magnet piece is fixed to form the magnetic pole on the movable body. The movable body and the permanent magnet pieces can prevent the vertical dimension of the entire airtight device from increasing. Each magnetic pole part is
It is formed by providing a permanent magnet piece. The permanent magnet piece can be fixed by, for example, an adhesive, and the magnetic pole portion can be easily formed.

Further, the present invention is characterized in that the driving means is provided as one set on a shield, and as one set of three permanent magnet pieces provided on a moving body. According to the invention, the driving means is provided as one set on the shield, and one set of three permanent magnet pieces provided on the movable body. In this way, the number of permanent magnet pieces provided on the shield driven up and down can be reduced as much as possible, and the weight of the lift can be reduced. Therefore, the driving force for driving the shield is small.

[0014]

FIG. 1 is a vertical sectional view showing a lower part 3 of a door 2 provided with a fitting airtight device 1 according to an embodiment of the present invention, and FIG. FIG. 3 is a perspective view showing the vicinity of one end 4 in the width direction of the lower part 3 of the door 2,
Is a horizontal sectional view showing the door 2. FIG. Entrance 6 of houses
For example, a door 2 which is a fitting is provided to open and close the entrance 6. One hinge piece 100 of a hinge 8 is fixed to one end 3 in the width direction of the door 2 by a screw 101, and Alternatively, the other hinge piece 102 of the hinge 8 is fixed to the wall 7 or the like by a screw 103. The hinge pieces 100 and 102 are connected by a hinge pin 104 so as to be angularly displaceable, and the door 2 is provided so as to be angularly displaceable. The floor 9 below the entrance 6 has a flat floor surface 9a so that, for example, the elderly may not trip over. Handles 110 and 111 are provided at the other end 5 in the width direction of the door 2, and the door 2 can be opened and closed. With the door 2 closed as shown in FIG. 3, the other end 5 in the width direction of the door 2 is positioned in contact with the door stop 112 of the pillar or wall 7.

The door 2 may be distorted by aging, for example.
When the floor surface 9a is formed flat, the lower end surface 1 of the door 2
0 and the floor 9a, at least about 4 mm vertically
The door 2 is provided with a gap 11 having an interval ΔL. When the gap 11 is formed under the door 2 in this manner, a draft flows from one space to be partitioned by the door 2 to the other space.
An airtight device 1 is provided at a lower portion 3 of the door 2.

The airtight device 1 includes a mounting member 15 provided on the lower portion 3 of the door 2, a shield 16 provided on the mounting member 15 so as to be able to swing, and a swing driving means 17 for swinging and driving the shield 16. It is comprised including. The mounting member 15 is provided in the width direction B1, B of the door 2 which is a direction perpendicular to the paper surface of FIG.
2 is an elongated member. The shield 16 is a long member, and the base end portion 16 a is provided on one side 1 of the mounting member 15.
5a, a horizontal axis L extending in the width direction B1, B2 of the door 2
It is provided so as to be able to swing in swing directions A1 and A2 around one.

A swing drive means 17 as a displacement drive means for displacing the shield 16 is provided in relation to the mounting member 15 and the shield 16 and is provided facing one end 3 of the door 2 in the width direction. It has an operating piece 18. This operating piece 18
When the door 2 is closed, it comes into contact with the fixed position 19 of the pillar or wall 7 and inward in the width direction of the door 2, that is, in the first direction B <b> 1 from the one end 4 to the other end 5 of the door 2.
, Whereby the shield 116 is moved to the free end 16b.
Is driven to swing in the shielding direction A1 so as to descend. For example, when the door 2 is opened and the operating piece 18 is not in contact with the fixed position 19 as shown by the imaginary line 120 in FIG. 3, the operating piece 18 is directed outward in the width direction of the door 2, that is, The shield 16 is driven to swing in the retreating direction A2 so as to return to project in the second direction B2 opposite to the one direction B1 and to move up the free end 16b. When the shielding direction A1 and the retreat direction A2 are collectively referred to as the swing directions A1 and A2 as described above, the first direction B1 and the second direction B
2 are collectively referred to as the width direction B1, B2 of the door 2.

When the door 2 is closed by providing such an airtight device 1, when the door 2 is closed, the abutment piece 2 is attached to the free end 16b of the shield 16, in this embodiment, the free end 16b.
Since the contact piece 1 is provided, the contact piece 21 can be brought into contact with the floor 9 below the door 2. Therefore, in order to eliminate the step of the entrance 6 as described above, the gap 11 formed below the door 2 can be shielded, and draft can be prevented. When the door 2 is opened, the shield 16
The free end portion 16b is separated upward from the floor 9 and does not hinder the opening and closing operation of the door 2. Thus, the gap 11 below the door 2 only when the door 2 is closed.
Since the shield 16 that can shield the free end 16b is raised and lowered by swinging, the free end 16b
Is dependent on the width dimension of the shield 16 in the left-right direction in FIG. 1 and does not depend on the vertical dimension of the shield 16. Therefore, the airtight device 1 is
The overall upper and lower dimensions can be reduced, for example, to 10 to 20 mm.

The mounting member 15 and the shield 16 are made of a rigid hard synthetic resin such as hard vinyl chloride, for example, and one side 15a of the mounting member 15 and a base end 16a of the shield 16 are provided.
Is connected by a hinge connecting piece 20 made of a flexible synthetic resin having flexibility, such as soft vinyl chloride, and the shield 16 can be swung by utilizing the flexibility of the hinge connecting piece 20. Can be provided. The free end 16b of the shield 16 is provided with a contact piece 21 made of a soft synthetic resin having flexibility such as soft vinyl chloride. The mounting member 15, the shield 16, the hinge connecting piece 20 and the contact piece 21 are integrally formed by extrusion molding.

By using such a synthetic resin, the mounting member 15, the shield 16, the hinge connecting piece 20 and the contact piece 21 can be easily manufactured by extrusion molding. Further, since the members 15, 16, 20, 21 are formed in a state of being integrally connected, the number of parts to be manufactured can be reduced, and the mounting member 15 and the shielding member 16 can be reduced.
Work by the hinge connecting piece 20 and the shield 1
The work for mounting the contact piece 21 to the contact piece 6 is not required, and the labor for manufacturing is reduced. Further, the mounting member 15 and the shield 16 can be obtained with relatively light weight and high strength.

FIG. 4 is an enlarged vertical cross-sectional view of the airtight device 1, FIG. 5 is a cross-sectional view taken along the line VV in FIG. 4, and FIG. FIG. FIG. 6 shows the outer surfaces 23a, 2 for ease of illustration.
4a is shown flat. The mounting member 16 has a substantially inverted U-shaped cross section, and has side walls 23 and 24 and side walls 23 and 24.
And a top plate 25 for connecting the two. This mounting member 15
In a state fitted in a mounting groove 26 formed in the lower part 3 of the door 2, the door 2 is fixed to the top plate 25 by, for example, a screw 27. The outer side surfaces 23a, 24a of the side walls 23, 24 are
It is formed in a sawtooth shape, and is hard to fall off from the mounting groove 26. Since the airtight device 1 can reduce the vertical dimension as described above, the mounting groove 26 can be relatively shallow, and the strength of the door 2 does not decrease.

The shield 16 has a substantially C-shaped cross-section with an open top, and has a base 41 and holding pieces 42 and 43 that rise from both sides of the base 41 and bend inward. The shield 16 has a thin, plate-like connection with a lower end of the base end 16 a and a lower portion of the side wall 23 on one side of the mounting member 15. As shown in FIG. 4, the shield 16 is housed in the mounting member 15 when the free end 16 is raised, and the lower surface 28 of the shield 16 is attached to the mounting member 1.
5, lower ends 23 of the side walls 23, 24
b, the same plane as the virtual plane 29 connecting 24b or above,
In this embodiment, they are on the same plane. Thus, when the door 2 is open, the shield 16 can be made invisible from the side, and the appearance is not impaired. Since the hinge connecting piece 20 is also thin, it cannot be seen from the side.

The contact piece 21 is provided in the shielding body 16 in a thin and semicircular shape, is hollow, and is made of a soft synthetic resin having flexibility as described above, and is easily deformed. can do. By providing such a contact piece 21, even if the floor surface 9a has irregularities, the irregularities can be absorbed and contacted, and a high shielding effect can be obtained over the entire length in the width direction of the door 2. be able to.

The swing driving means 17 further includes a moving body 32
And driving means 33. The moving body 32 is a long plate-shaped member made of a hard synthetic resin such as hard vinyl chloride. Guide ridges 34 and 35 projecting inward from the respective side walls 23 and 24 are formed on the mounting member 15, and the movable body 32 includes the top plate 25 and the respective guide ridges 3.
In the state of being sandwiched between the doors 4 and 35, the door 2 is held by the mounting member 15 and is provided so as to be movable in the width directions B1 and B2 of the door 2. The moving body 32 is connected and fixed at one end to the operating piece 18 and moves together with the operating piece 18.

The driving means 33 comprises a fixed permanent magnet piece 37 fixed to the shield 16 and two movable permanent magnet pieces 38, 39 fixed to the moving body 32. The fixed permanent magnet pieces 37 fixed to the shield 16 are arranged in the width direction B1, B
2 with the magnetic poles N and S arranged side by side.
It fits in the concave groove 44 sandwiched between the base plates 2 and 43 and is fixed to the base 41 by, for example, an adhesive, and is hardly separated by being held between the holding pieces 42 and 43. The movable permanent magnet pieces 38 and 39 fixed to the moving body 32 respectively have magnetic poles N and S arranged in B1 and B2 in the width direction of the door 2 and have the same polarity.
They are fixed with, for example, an adhesive in a state where they are opposed to each other and are adjacent to each other. Each magnetic pole N of each of the permanent magnet pieces 37 to 39 has the same polarity, and each magnetic pole S has the same polarity and a different polarity from the polarity of the magnetic pole N.

When the door 2 is opened and the operating piece 18 is separated from the fixed position 19, the permanent magnet pieces 37 to 39 are fixed permanent magnet pieces as shown in FIGS. In the state where the piece 37 and the movable permanent magnet piece 38 face each other, the door 2 is closed, and the operating piece 18 is displaced in the first direction B1, as shown in FIG. The movable permanent magnet piece 39 is disposed so as to face the movable permanent magnet piece 39.
The fixed permanent magnet piece 37 has a magnetic pole S arranged on the first direction B1 side and a magnetic pole N arranged on the second direction B2 side. The movable permanent magnet piece 38 has a magnetic pole N arranged on the first direction B1 side,
The magnetic pole S is arranged on the direction B2 side. Movable permanent magnet piece 3
No. 9 arranges the magnetic pole S on the first direction B1 side, and the second direction B2
The magnetic pole N is arranged on the side.

As described above, when the operating piece 18 is displaced in the first direction B1 and is in the first position, the fixed permanent magnet piece 37 faces the movable permanent magnet piece 39 as shown in FIG. Then, the magnetic poles having the same polarity face each other. The fixed permanent magnet piece 37 has an
When returning to the direction B2 and in the second position, the movable permanent magnet piece 38 faces the movable permanent magnet piece 38, and the magnetic poles having different polarities face each other.

Thus, when the operating piece 18 is at the first position, the magnetic repulsive force of the same polarity causes
The shield 16 is driven in the shielding direction A1 such that the free end 16b is lowered from the state shown by the virtual line to the state shown by the solid line in (2). When the operating piece 18 is at the second position, the shield 16 is moved from the state shown in FIG. 7B to the state shown in FIG.
Is driven in the evacuation direction A2 so as to rise.

As described above, the moving body 32 is connected to the operating piece 18 and moves in conjunction with the displacement of the operating piece 18. The driving means 33 is interlocked with the displacement of the operation piece 18 transmitted by the movement of the moving body 32. Thus, with a relatively simple configuration, the shield 16 can be driven to swing in conjunction with the displacement of the operation piece 18 and, thus, in conjunction with the opening and closing of the door 2.

The drive means 32 is provided with each of the permanent magnet pieces 37 to
When the door 2 is closed corresponding to the movement of the moving body 32 with a simple configuration, the permanent magnet pieces 37 fixed to the shielding body 16 and the moving body 32 are provided.
When the door 2 is opened so as to descend the free end portion 16b by utilizing the mutually repelling force, and when the door 2 is opened, the permanent magnet pieces 37,
The free ends 16b utilize the force of the attraction of the free ends 16b.
Can be driven to swing upward. As described above, each permanent magnet piece 37 is used as a driving force for swinging the shield 16.
Since the magnetic force of ~ 39 is used, the driving force does not decrease due to aging and repeated swing driving of the shield 16, and the durability is excellent.

The swing drive means 17 includes a compression coil spring 46 as spring means for applying a spring force to the moving body 32 and the operating piece 18 in the direction B2 from the first position to the second position. And a spring holding member 47 for holding the compression coil spring 46. Spring holding member 47
Is made of, for example, steel and has a substantially inverted U-shape, and has a base portion 48 and a contact portion 4 which falls from both ends of the base portion 48.
9 and a spring receiving portion 50. The base 48 is plate-shaped, has the same width as the moving body 32, and is sandwiched and held by the top plate 25 of the mounting member 15 and the guide protrusions 34 and 35. The contact part 49 has the same width as the base part 48,
By contacting the end faces 34a, 35a of the guide projections 34, 35, the displacement of the door 2 in the width direction B1 is prevented. An insertion hole 51 is formed in the contact portion 49, and the operation piece 18 is inserted therethrough. The spring receiving portion 50 includes a base 48.
It has a smaller width and falls from between the guide ridges 34,35. The spring receiving portion 50 has an insertion hole 52
Are formed, and the operation piece 18 is inserted therethrough.

The operating piece 18 is provided with a spring receiving piece 53 between the contact part 49 and the spring receiving part 50. The compression coil spring 46 is provided in a state where the operation piece 18 is inserted. One end of the compression coil spring 46 is in contact with the spring receiving portion 50, and the other end is in contact with the spring receiving piece 53.

As a result, when the operating piece 18 is displaced in the first direction B1 from the state of being in the first position as shown in FIG. 5, the spring receiving member 47 is displaced in the first direction B1. Since the displacement in the one direction B1 is prevented, the compression spring 46 is displaced while being compressed. When the operating piece 18 is not in contact with the fixed position 19, the operating piece 18 is displaced outward in the width direction of the door 2 by the restoring force of the compression coil spring 46. Thus, when the door 2 is opened and the operating piece 18 is not in contact with the fixed position 19, the fixed permanent magnet piece 37 fixed to the shield 16 and the moving body 3
2 so that the permanent magnet pieces 38 fixed to the movable body 2 face each other and magnetic poles having different polarities can face each other.
Since the second member 2 is moved in the second direction B2 by the spring force, the shield 16 can be reliably raised.

At both ends of the mounting member 15, plate-like lids 58, 59 are provided. Such a lid 58,
By providing the airtight device 59, even if the airtight device 1 is provided over the entire length of the door 2 in the width direction and exposed from both ends of the door 2 in the width direction, the appearance can be prevented from being deteriorated.

FIG. 8 is a sectional view showing an airtight device 60 according to another embodiment of the present invention. Only parts different from the above-described configuration will be described, and corresponding parts will be denoted by the same reference characters and description thereof will be omitted. A protrusion 61 having a horizontal axis L2 extending in the width direction of the fitting is formed on the side wall 23 of the one side portion 15a of the mounting member 15, and a protrusion 61 of the mounting member 15 is formed on the base end 16a of the shield 16. Is formed with a concave fitting portion 62 which is fitted so as to swing about the horizontal axis L2. Even in this configuration, similarly to the above-described embodiment, the shield 16 is driven to swing and the free end 16b is moved to the floor 9 only when the door 2 is closed.
, And a similar effect can be obtained.

As another embodiment of the present invention, a concave fitting portion 62 may be formed on the mounting member 15 and a projection 61 may be formed on the shielding body 16. Even with such a configuration, the same effect as the airtight device 60 can be obtained.

FIG. 9 shows another embodiment of the present invention.
FIG. 4 is a cross-sectional view showing a state in which the airtight device 1 is mounted without forming the mounting groove 26. The airtight device 1 according to the present invention comprises:
Since the shield 16 is configured to swing, the vertical dimension can be reduced as described above.
Doors 2 provided at a relatively large interval ΔL include:
The airtight device 1 can be provided without forming the mounting groove 26. Therefore, even with the existing door 2, the airtight device 1 can be provided at a position where it is difficult to see from the side.
As shown in FIG. 9, the hinge connecting piece 20 is formed such that cuts 63 and 64 are formed at one end 15 a of the mounting member 15 and the base end of the shield 16 a so as to fit into the cuts 63 and 64. They may be connected.

FIG. 10 is a sectional view showing a swing drive means 71 of an airtight device 70 according to another embodiment of the present invention. Only parts different from the above-described configuration will be described, and corresponding parts will be denoted by the same reference characters and description thereof will be omitted. The spring receiving member 72 is substantially L-shaped, and has a base 73 and a base 7.
3 and a spring receiving portion 74 that rises from the position 3, and is held by the mounting member 15 at the base portion 73. The operating piece 75 is connected to the connecting rod 7.
6, the connecting rod 76 is inserted through the spring receiving portion 74 and the compression coil spring 46. One end of the compression coil spring 46 contacts the spring receiving portion 74, and the other end contacts the operating piece 75. Even with such a configuration, the same effect as in the above-described embodiment can be obtained. The operating piece 75 has a large-diameter contact portion 75 at the distal end.
a, so that a large load is not applied to the fixed position 19 when it comes into contact with the fixed position 19.

FIG. 11 is a sectional view showing an airtight device 80 according to still another embodiment of the present invention, and FIG.
FIG. 12 is a cross-sectional view as viewed from the right side of FIG.
Only parts different from the above-described embodiment will be described, and corresponding parts will be denoted by the same reference numerals. At the lower ends of the side walls 23, 24 of the mounting member 15, floating portions 82, 83 projecting inward are formed, respectively.

The shielding body 81 is a hollow member having a substantially rectangular cross section, and has outwardly projecting ridges 84 and 85 projecting from both sides from a base end portion 81a serving as an upper portion. The shield 81 is attached to the mounting member 1 from the base end 81a side.
5 is slid in the up and down directions C1 and C2 and held so as to be able to move up and down. The outwardly projecting ridges 84 and 85 are locked by the receiving portions 82 and 83, respectively, so that the shield 81 is formed.
Is prevented from falling off from the mounting member. The fixed permanent magnet piece 37 is fixed to the upper part of the shield 81, that is, to the base end part 81a. The moving body 32 includes a shield 81
The movable permanent magnet piece 3 is provided so as to be movable above the
8, 39 are fixed. Even with such a configuration, the shield 81 can be driven to move up and down in conjunction with opening and closing of the door 2, whereby the free end 81 b descends when the door 2 is closed, and The provided contact piece 21 can be brought into contact with the floor 9. In this embodiment, the swing drive unit 17 drives the shield 81 up and down.

The mounting member 15 is provided with a guide rod 88 extending downward, and this guide rod 88 passes through an insertion hole 89 of the shield 81. Thereby, the shield 81 can be more reliably guided in the vertical direction. With this configuration, the direction in which the attractive force or repulsive force of each of the permanent magnet pieces 37 to 39 acts is parallel to the vertical directions C1 and C2 in which the shield 81 moves, and the attractive force and the repulsive force are reduced. It can be efficiently used as the driving force of the shield 81.

FIG. 13 is a sectional view showing an airtight device 90 according to still another embodiment of the present invention, and FIG.
FIG. 14 is a cross-sectional view of FIG.
Only parts different from the above-described embodiment will be described, and corresponding parts will be denoted by the same reference numerals. On the side of the shield 81,
The fixed permanent magnet piece 37 is fixed. The moving body 32
The movable permanent magnet pieces 38 and 39 are fixed to the side of the shield 81 so as to be movable.

The fixed permanent magnet piece 37 has a magnetic pole N at the upper part and a magnetic pole S at the lower part. Movable permanent magnet piece 3
8 has a magnetic pole S at the top and a magnetic pole N at the bottom. The movable permanent magnet piece 39 has a magnetic pole N at an upper part and a magnetic pole S at a lower part. When the operating piece 18 is at the second position as shown in FIG. 15A, the fixed permanent magnet piece 37 and the movable permanent magnet piece 38 attract each other, and the shield 81 is raised. When the operating piece is displaced to the first position,
As shown in FIG. 15 (2), the fixed permanent magnet piece 37 and the movable permanent magnet piece 39 recede, and the shield 81 is lowered.

In the state shown in FIG. 15A, the N pole of the fixed permanent magnet piece 37 is below the S pole of the movable permanent magnet piece 38 and above the N pole of the movable permanent magnet piece 39. Since the S pole of the piece 37 is below the N pole of the movable permanent magnet piece 39, the fixed permanent magnet piece 37 receives an upward acting force, and urges the shield 81 downward to raise it. Can be. From this state, the door 2 is closed and the moving body 32 is closed.
Is displaced in the first direction B1, the N of the fixed permanent magnet piece 37
The poles are below the N pole of the movable permanent magnet piece 39 and above the S pole of the movable permanent magnet piece 38, and the S pole of the fixed permanent magnet piece 37 is below the S pole of the movable permanent magnet piece 39. , The fixed permanent magnet piece 37 receives a downward acting force,
Is lowered.

In the state shown in FIG. 15 (2), the N pole of the fixed permanent magnet piece 37 is below the N pole of the movable permanent magnet piece 39 and above the S pole of the movable permanent magnet piece 39. Since the S pole of the piece 37 is below the S pole of the movable permanent magnet piece 39, the fixed permanent magnet piece 37 receives a downward acting force, and urges the shield 81 downward to form the contact piece. 21 to floor 9
Can be abutted. When the door 2 is opened from this state and the moving body 32 is displaced in the second direction B2, the N pole of the fixed permanent magnet piece 37 is located above the N pole of the movable permanent magnet piece 38 and the N pole of the movable permanent magnet piece 38. Since the S pole of the fixed permanent magnet piece 37 is below the N pole of the movable permanent magnet piece 39, the fixed permanent magnet piece 37 receives an upward acting force, and the shield 81 is raised. You.

With such a configuration, the shield 81 can be moved up and down in conjunction with the opening and closing of the door 2, whereby the free end portion 81a descends when the door 2 is closed, and The piece 21 can be brought into contact with the floor 9. Further, as described above, the moving body 32 and the permanent magnet pieces 37 to 39 are provided.
This can prevent the vertical dimension of the entire airtight device 90 from being increased.

As described above, the driving means 33 is
One fixed permanent magnet piece 3 provided on shields 16 and 81
7 and two movable permanent magnet pieces 3 provided on the moving body 32.
By making the three sets of 8 and 39 into one set, the number of fixed permanent magnet pieces 37 provided on the shields 16 and 81 can be reduced as much as possible, and the weight of the shields 16 and 81 can be reduced. . Therefore, a small driving force is required.

As another embodiment of the present invention, FIG.
To the moving body 32 and the operating piece 1 in the configuration shown in FIG.
When the fitting is opened, the operating pieces 18 and 75 may move in the direction from the first position to the second position by the magnetic force of the permanent magnet pieces. More specifically, the repulsive force between the magnetic pole N of the fixed permanent magnet piece 37 and the magnetic pole N of the movable permanent magnet piece 39 and the fixed permanent magnet piece 3
7 and the repulsive force between the magnetic pole S of the movable permanent magnet pieces 38 and 39, and the attractive force between the magnetic pole N of the fixed permanent magnet piece 37 and each magnetic pole S of the movable permanent magnet pieces 38 and 39. Alternatively, the moving body 32 and the operating pieces 18 and 75 may be moved by an attractive force between the magnetic pole S of the fixed permanent magnet piece 37 and the magnetic pole N of the movable permanent magnet piece 38. Thus, it is not necessary to separately provide a means for returning the moving body 32 and the operation pieces 18 and 75.

Further, a plurality of driving means 33 including the permanent magnet pieces 37 to 39 may be provided. Further, the driving means 33 may be formed of another combination of the permanent magnet pieces. For example, two permanent magnet pieces may be provided on the shields 16 and 81 and one permanent magnet piece may be provided on the moving body 32. Good. Alternatively, the movable permanent magnet pieces 38 and 39 may be integrally formed, and both ends and the center may be magnetized with different polarities.

As still another embodiment of the present invention, as shown in FIG. 16, a mounting portion 80a is formed in the airtight device 80, and a screw 12 is inserted into an insertion hole 121 of the mounting portion 80a.
2 may be inserted into the door 2 and fixed to the door 2 from the side. In such a case, the airtight device 80 can be provided on the existing door 2.

The above-mentioned airtight devices 1, 60, 70, 8
0,90 can be similarly applied to other fittings such as sliding doors and folding doors.

[0052]

According to the present invention, a shield which can shield the lower part of a fitting only when the fitting is closed,
Since the driving is performed by the magnetic force, the driving force does not decrease due to aging or repeated vertical driving. Therefore, it is possible to improve the durability of the lifting / lowering drive means, and thus the durability of the airtight device.

Further, according to the present invention, since the shield that can shield the lower part of the fitting only when the fitting is closed is driven by magnetic force, the driving force can be increased by aging or repeated vertical drive. It does not drop. Therefore, it is possible to improve the durability of the lifting / lowering drive means, and thus the durability of the airtight device.

Further, according to the present invention, the shielding body is provided so that the base end can swing on one side of the mounting member. Thus, the vertical movement distance of the free end depends on the dimension in the width direction of the shield, but not on the vertical dimension of the shield. Therefore, the vertical dimension of the whole airtight device can be reduced. Each magnetic pole portion is formed by providing a permanent magnet piece. The permanent magnet piece can be fixed by, for example, an adhesive, and the magnetic pole portion can be easily formed. The permanent magnet piece provided on the shield is fitted into the C-shaped shield and is sandwiched from the side. Thereby, the permanent magnet piece provided on the shield can be firmly fixed.

Further, according to the present invention, the shield is held by a mounting member having a substantially inverted U-shaped cross section so as to be able to move up and down, and a permanent magnet piece is fixed to the upper portion, and the magnetic pole portion is attached to the shield. It is formed. The moving body is provided movably above the shield, and a permanent magnet piece is fixed to the moving body to form the magnetic pole on the moving body. Thus, the direction in which the attractive force or the repulsive force acts on each magnetic pole portion is parallel to the moving direction of the shield, and the attractive force and the repulsive force can be efficiently used as the driving force of the shield. Each magnetic pole portion is formed by providing a permanent magnet piece. The permanent magnet piece
For example, it can be fixed by an adhesive,
The magnetic pole portion can be easily formed.

Further, according to the present invention, the shield is held by a mounting member having a substantially inverted U-shaped cross section so as to be able to move up and down, and a permanent magnet piece is fixed to a side portion, and the magnetic pole portion is fixed to the shield. Is formed. The movable body is provided movably on the side of the shield, and a permanent magnet piece is fixed to form the magnetic pole on the movable body. The movable body and the permanent magnet pieces can prevent the vertical dimension of the entire airtight device from increasing. Each magnetic pole portion is formed by providing a permanent magnet piece. The permanent magnet piece is
It can be fixed and the magnetic pole portion can be easily formed.

Further, according to the present invention, the driving means includes:
One set includes three permanent magnet pieces provided on the shield and two provided on the moving body. In this way, the number of permanent magnet pieces provided on the shield driven up and down can be reduced as much as possible, and the weight of the lift can be reduced. Therefore, a small driving force is required.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view showing a lower portion 3 of a door 2 provided with an airtight device 1 according to an embodiment of the present invention.

FIG. 2 is a perspective view showing the vicinity of one end portion 4 in the width direction of a lower portion 3 of the door 2;

FIG. 3 is a horizontal sectional view showing the door 2.

FIG. 4 is an enlarged sectional view showing the airtight device 1;

FIG. 5 is a cross-sectional view taken along the line VV of FIG. 4;

FIG. 6 is an exploded perspective view showing a part of the airtight device 1.

FIG. 7 is a diagram for explaining the operation of the shield 16;

FIG. 8 is a cross-sectional view showing an airtight device 60 according to another embodiment of the present invention.

FIG. 9 is a cross-sectional view showing an airtight device 1 in a mounted state according to still another embodiment of the present invention.

FIG. 10 shows an airtight device 7 according to still another embodiment of the present invention.
FIG. 7 is a cross-sectional view showing a swing drive unit 71 of No. 0.

FIG. 11 shows an airtight device 8 according to still another embodiment of the present invention.
FIG.

FIG. 12 is a cross-sectional view of the shield 81 as viewed from the right in FIG.

FIG. 13 shows an airtight device 9 according to still another embodiment of the present invention.
FIG.

FIG. 14 is a cross-sectional view of the shield 81 as viewed from the right in FIG.

FIG. 15 is a diagram for explaining the operation of the shield 81.

FIG. 16 is a sectional view showing an airtight device 80 in a mounted state according to still another embodiment of the present invention.

[Explanation of symbols]

 1, 60, 70, 80, 90 Airtight device 2 Door 11 Gap 15 Mounting member 16, 81 Shield 17 Swing drive means 18, 75 Working piece 19 Fixed position 20 Hinge connecting piece 21 Contact piece 32 Moving body 33 Drive Means 37-39 Permanent magnet piece

Claims (6)

[Claims] A free end is provided at the lower part of a fitting so as to be able to move up and down, and a shield extending in the width direction of the fitting is linked to opening and closing of the fitting when the fitting is closed. And a displacement drive means for displacing the shield so as to lower the free end so that the free end of the shield is raised by magnetic force when the fitting is opened. Airtight device. 2. A long mounting member provided at a lower part of the fitting and extending in the width direction of the fitting, a shield provided on the mounting member so as to be able to move up and down and extending in the width direction of the fitting, An operating piece provided in connection with the member and the shield and facing the width direction end of the fitting, and a movable body provided movably in the width direction of the fitting and linked to the operating piece and cooperated with the operating piece And a driving means for driving the shield, and when the fitting is closed,
The driving means is in contact with the fixed position and is displaced inward in the width direction of the fitting. When in the first position displaced inward in the width direction, the magnetic pole portion faces the magnetic pole portion of the shield and has the same polarity as the magnetic pole of the shield,
And when the operating piece is at the second position not in contact with the fixed position, it has a magnetic pole portion of the shield facing the magnetic pole portion of the shield and having a different polarity from the magnetic pole portion of the shield. And a displacement driving means for displacing and driving the shield so that its free end moves up and down. 3. The shield has a pair of holding pieces, a base end of which is swingably provided on one side of a mounting member, and each magnetic pole section is formed by providing a permanent magnet piece. The airtight device for fittings according to claim 2, wherein the permanent magnet piece provided on the shield is fitted between the holding pieces of the shield and is held from the side. 4. The mounting member has a substantially inverted U-shaped cross section. The shield is held up and down by the mounting member, and a permanent magnet piece is fixed on the upper part. The airtightness device for a fitting according to claim 2, wherein the movable body is formed so as to be movable above the shield, and a permanent magnet piece is fixed to the movable body to form the magnetic pole. 5. The mounting member has a substantially inverted U-shaped cross section. The shield is held by the mounting member so as to be able to move up and down, and a permanent magnet piece is fixed to a side portion, and the magnetic pole portion is fixed to the shield. The airtight device for a fitting according to claim 2, wherein the movable body is provided movably on a side of the shield, and a permanent magnet piece is fixed to the movable body to form the magnetic pole. . 6. The driving device according to claim 3, wherein one of the driving means is provided on the shield and three permanent magnet pieces are provided on the moving body as one set. Fittings airtight equipment.