JPH08303139A - Floor contact device for sliding door - Google Patents

Abstract

PURPOSE: To open and close a door panel lightly and enhance the sealing action of a seal body as well in a contact floor device for a sliding door which is arranged based on the action of magnetism. CONSTITUTION: A guide frame 9 is fixed with a door panel 2. A seal body 10 is supported on the lower part of the inner surface of the guide frame 9 in such a fashion that it may move freely and vertically. A slider 19 is laid out adjacent with the top of the seal body 10 and supported with the guide frame 9 slidably on both directions. The slider 19 is energetically moved towards the enclosed end of the door panel 2 by means of a spring 20. A change-over tool 21, which moves the slider 19 against the energizing force of the spring 20, is installed between the slider 19 and a floor surface. Magnets 22 and 23, which attract each other are installed on the opposed faces of the seal body 10 and the slider 19 while the seal body 10 is attracted and held at an upper stand-by position with the opened door panel 2. When the door panel 2 is closed, the slider 19 is received and stopped with the change-over tool 21 so that it may move relatively with the seal body 10. This action makes it possible to separate both magnets 22 and 23 and place the seal body 10 in contact with the floor.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor contacting device for preventing sound, light, cold air, etc. from leaking from a gap between a door panel and a floor surface in a closed state, and more particularly to a floor contacting device applied to a sliding door.

[0002]

2. Description of the Related Art As a conventional floor contacting device of this type, a detection rod is provided on a side end surface of a door panel so that the sealing rod can be opened and closed by opening and closing the door rod. There is a device that comes in and out of contact with the floor. Japanese Utility Model Laid-Open No. 4-53994 and Japanese Utility Model Laid-Open No. 4-82290 are examples.

There is also a device for bringing the seal body into contact with the floor by utilizing the attractive force of the magnet (Japanese Utility Model Laid-Open No. 5-28892). There, the whole seal body is pulled up and supported by a spring, and magnets are arranged at a plurality of places of the seal body. Another magnet is arranged in the rail facing the magnet when the door panel is closed, and the attracting action of both magnets lowers the seal body against the spring to bring it into contact with the floor.

[0004]

In the floor contacting device for moving up and down the seal body by utilizing the movement of the detection rod, the mechanism for converting the movement of the detection rod into the vertical movement is indispensable. Therefore, the entire structure of the floor contacting device is complicated, and its manufacturing cost is high. When using the attraction force of this point magnet,
The number of component parts of the floor contacting device can be reduced, and the manufacturing cost can be reduced.

The problem is that the closed door panel cannot be opened easily. When the door panel is closed, the magnet on the seal body side and the magnet on the rail side are in close contact with each other.
Therefore, when the door panel is opened and operated, the magnet and the seal body are dragged along with the door panel until friction between the magnets exceeds a certain amount and the attraction force between the two falls below a predetermined value. This is because it causes resistance. Further, when the magnets start to separate, the resistance force due to the magnets and the seal body suddenly decreases. Therefore, if the opening operation force is excessively large, the body posture may be overwhelmed.

In the closed state, the magnet holds the seal body down against the biasing force of the spring, but the total tension of the spring in such a floor contact device can lift the seal body against its weight. Must be a value. Further, the total attracting force of the magnet must be larger than the total tension of the spring to maintain the attracting state. Therefore, in order to increase the degree of adhesion of the seal body, it is necessary to use a stronger magnet or set a large number of magnets to be used, which tends to increase the cost. In many cases, the weight of the seal body is reduced as much as possible, and the pressure contact force against the floor surface is also reduced to reduce the cost of the entire apparatus.

SUMMARY OF THE INVENTION An object of the present invention is to provide a floor-contacting device for a sliding door utilizing the magnetic action, which enables the door panel to be opened and closed easily and the overall structure to be simplified. Another object of the present invention is to make the seal body sufficiently adhere to the floor surface and to reliably block sound and light,
It is an object of the present invention to provide a floor-contacting device for a sliding door that uses magnetic action. Another object of the present invention is to utilize a magnetic action for a sliding door, which can exert a cushioning effect and prevent the door panel from colliding with the door frame when the door panel is closed by an operation force more than necessary. To provide a floor contact device.

[0008]

The floor contacting device of the present invention comprises:
A seal body 10 supported by a guide frame 9 arranged below the door panel 2 so as to be lifted and lowered, and the seal body 10
It is equipped with a mechanism that moves up and down in conjunction with the opening and closing operations.
The elevating operation mechanism is arranged adjacent to the seal body 10 and is supported by a guide frame 9 so as to be slidable left and right.
And a spring 20 for biasing the slider 19 to move toward the closed end of the door panel 2, and a slider 19 provided between the slider 19 and the door frame 1 to slide the slider 19 against the biasing force of the spring 20. The switching tool 21 to be operated, and a plurality of pairs of magnets 22 and 23 provided on each of the opposing surfaces of the seal body 10 and the slider 19 and holding the seal body 10 at the upper standby position are provided. In the vicinity of the closing stroke end of the door panel 2, the slider 19 uses the switching tool 21 to move the spring 2
The slide operation is performed against the biasing force of 0. This allows
The attraction or repulsion state between the pair of magnets 22 and 23 is released, and the seal body 10 is moved downward to the floor contacting posture.

Specifically, in the floor contact state, the magnets 22 and 23 are so arranged that a repulsive force acts between the paired magnets 22 and 23.
23 is arranged on the seal body 10 and the slider 19. The slider 19 is arranged adjacent to the upper surface of the seal body 10 and is fixed to the free end of the slider 19, and the passive leg 31 is fixed to the floor surface side and near the end of the closing stroke of the door panel 2. The switching tool 21 is configured by a stopper 32 that contacts and supports.

The slider 19 includes a plurality of plastic-molded holders 24 and a connecting plate 25 formed of a non-magnetic material for connecting the holders 24.
The magnet 23 is attached to 4. The seal body 10 includes a hollow frame made of a non-magnetic material and a seal material 15 fixed to the lower end of the hollow frame.
The magnet 22 is disposed above the inner surface of the hollow frame, including. The door panel 2 is openably and closably supported along the upper rail 4 via a runner 3 fixed to the upper portion of the door panel 2. A groove-type lower rail 5 that is in contact with the seal body 10 is embedded in the floor surface. A stopper 32 is arranged inside the lower rail 5.

[0011]

When the door panel 2 is opened, the slider 19 is moved by the spring 20 to the closed end side of the door panel 2, and the pair of magnets 22 and 23 are directly opposed to each other.
0 is held at the upper standby position. When the door panel 2 is closed from this state, the passive leg 31 provided on the slider 19 side is received by the stopper 32 near the end of the closing stroke, and is prevented from further moving to the closing side. As a result, the slider 19 slides relative to the guide frame 9 against the urging force of the spring 20 and forcibly separates the magnets 22 and 23 that are attracted or repulsed. As a result, the seal body 10 loses its supporting force and moves downward by its own weight, and contacts the floor surface or the lower rail 5 to close the gap at the lower edge of the door panel 2.

On the contrary, when the door panel 2 is opened from the closed state, the slider 1 which is supported by the switching tool 21 is supported.
9, the seal body 10 approaches, and the pair of magnets 22
23 The two gradually approach the other party's magnetic field. Then, the magnets 22 and 23 overcome the weight of the seal body 10 and attract or repel each other, whereby the seal body 10 moves upward and is held in a standby state. In this way, the seal body 1 is attracted or repelled by the paired magnets 22 and 23.
According to the landing device that holds 0 in the standby position, the door panel 2
The operating resistance when opening the door is limited to only the frictional resistance of the seal body 10, and the spring 20 for the slider 19 acts on the side that opens the door panel 2, so the operating force required to open the door panel 2 Can be made smaller. The spring 20 is the door panel 2
It also acts as a buffer when closing the door with an excessive force, and also helps prevent the door panel 2 from colliding with the door frame 1.

The paired magnets 22 and 2 in the floor contact state
According to the floor contacting device in which the repulsive force acts between the three,
Since the seal body 10 can be pressed by the repulsive force of the magnets 22 and 23 in addition to the gravity of the seal body 10, a more reliable sealing action can be exhibited. According to the floor-contacting device in which the switching tool 21 is configured by the passive leg 31 fixed to the free end of the slider 19 far from the closed end of the door panel 2 and the stopper 32 fixed to the floor surface side, the door panel 2 When the door is opened, the stopper 21 can be positioned near the door panel 2 or on the lower surface thereof to prevent the stopper 32 from obstructing passage. Particularly, when the stopper 32 is arranged inside the lower rail 5, the stopper 32 can be prevented from protruding to the floor surface.

[0014]

According to the present invention, the seal body 10 is held on standby by the attraction or repulsion of the magnets 22 and 23, and the slider 19 is slid against the spring 20 by the switching tool 21 by the closing operation of the door panel 2. Then, the magnets 22 and 23 that were in the attracted or repulsed state were separated and operated so that the seal body 10 was brought into contact with the floor in the descending direction. According to such a floor contacting device, when the door panel 2 is opened and operated,
Since the pair of magnets 22 and 23 are not dragged to generate frictional resistance, and the tension of the spring 20 for urging and moving the slider 19 acts to open the door panel 2, the door panel 2 as a whole is It can be opened and operated easily. The seal body 10 is moved up by using the attraction force or repulsive force of the magnets 22 and 23, and the seal body 10 is moved down by its own weight. Therefore, the entire structure is simpler than that of a floor contacting device that mechanically moves up and down. And the cost required for its manufacture can be reduced.

According to the floor-contacting device, the floor-contacting device maintains the floor-contacting state of the sealer 10 by utilizing the repulsive force and the attractive force of the paired magnets 22 and 23 to bring the sealer 10 into contact with the floor by its own weight. The sealing body 10 has a sufficiently large floor contact force as compared with a conventional floor contact device in which the magnet is attracted and held by a magnet against the biasing force of the spring.
It is possible to securely block sound, light, etc. by holding it in contact with the floor. Magnet 22
The magnetic force that 23 should have is also small, and this also reduces the cost of members. When the door panel 2 is closed, the slider 19 is relatively moved against the urging force of the spring 20. At this time, the spring 20 prevents the door panel 2 from closing, so that an excessive operating force is applied to the door. When the panel 2 is closed, it is possible to prevent the door panel 2 from colliding with the door frame 1 by exerting a cushioning effect.

[0016]

1 to 5 show an embodiment of the present invention.
In FIG. 2, reference numeral 1 is a door frame and 2 is a door panel. The door panel 2 is suspended via runners 3 provided on both sides of the upper part thereof, and can be opened and closed by sliding along an upper rail 4 that supports the runner 3. A lower rail 5 is embedded on the floor surface side of the door frame 1, and a floor contacting device that comes in contact with and separates from the inner bottom surface of the lower rail 5 is incorporated in the lower inner surface of the door panel 2.
In order to hold the door panel 2 fixed in the closed position, a latch lock 6 and a handle 7 for unlocking the latch lock 6 are provided between the door frame 1 and the door panel 2.

3 to 5, the floor contacting device includes a guide frame 9 having a frame length slightly smaller than the width dimension of the door panel 2,
The seal body 10 is housed in the guide frame 9 and supported by the front and rear walls thereof so as to be vertically movable. The seal body 10 is moved up and down in conjunction with the opening and closing operation of the door panel 2. It is built in the inside of the guide frame 9 and configured as one unit.

The guide frame 9 is composed of a hollow frame having a vertically long C-shaped channel material having an opening on the lower surface side, and is made of a lightweight non-magnetic material such as aluminum or plastic. On the upper part of the inner surface of the frame, a pair of upper and lower guide ribs 11 facing each other in the front-rear direction are provided in a protruding manner.
Is supported so that it can slide left and right. A space below the lower guide rib 11 serves as a seal chamber, and the seal body 10 is housed therein.

In FIG. 5, the seal body 10 is a hollow frame having an inverted convex cross-section having a main body 12 having a rectangular cross section and a pair of front and rear leg walls 13 continuing from the lower wall of the main body 12 and having an open bottom surface. The sealing material 1 is formed at the lower end of the leg wall 13.
Holding grooves 14 for mounting 5 are provided to face each other. Like the guide frame 9, the seal body 10 is also formed of an aluminum shape member or a plastic molded product. The seal material 15 is formed by elastically deformable bristles 16 densely planted on the lower surface of the base plate 17, and the base plate 17 is fitted and fixed in the holding groove 14 to fix the bristles 16 to the seal body 10.
Project from the bottom edge of. The seal body 10 is incorporated in the guide frame 9 in a state where the main body 12 is contained in the seal chamber. In this assembled state, the lower part of the leg wall 13 is the guide frame 9
Always projects downward from.

A mechanism for operating the seal body 10 to move up and down is disposed adjacent to the upper surface of the main body 12 and is supported by the guide rib 11 so that the slider 19 can be slid left and right.
A spring 20 that urges the slider 19 to move toward the closed end of the door panel 2, a switching tool 21 that operates the slider 19 in conjunction with the opening / closing operation of the door panel 2, the seal body 10 and the slider 19. It is composed of a plurality of pairs of magnets 22 and 23 arranged on the opposite surface.

The slider 19 is composed of three holders 24 which are plastic molded products, and a connecting plate 25 made of an aluminum plate material for connecting the respective holders 24. As shown in FIG. 1, the holder 24 is composed of a rectangular block that is horizontally long in the left-right direction, has a mounting hole 26 that penetrates vertically in the center thereof, and has the same thickness as the connecting plate 25 on the upper left and right sides of the mounting hole 26. It has a step attachment part. The end of the connecting plate 25 is placed on this mounting portion, and the connecting plate 25 and the holder 24 are fixed by screws screwed from the lower surface side of the holder 24. Paired magnets 2
One of the magnets 23, 23 is fitted into the mounting hole 26 and fixed. As shown in FIG. 1, one of the left and right ends of the magnet 23 is magnetized as an N pole and the other is magnetized as an S pole.

In order to urge the slider 19 to move, a hooking piece 29 is fixed to the inner surface of the end portion of the guide frame 9 on the closed end side, and a holder 24 closest to the hooking piece 29 is attached. Fix the mounting piece 30 to the part with screws, and both 29.
A tension coil type spring 20 is stretched between 30 (FIG. 3).
reference). When the door panel 2 is open, the slider 19 is pulled toward the closed end. In this state, the sealing body 10 resists the weight of the slider 19
Three magnets 22 are arranged inside the main body portion 12 of the seal body 15 in order to attract and hold them. The magnet 22 is fitted and mounted in a plastic holder 24 similar to the magnet 23 on the slider 19 side. Each holder 24 is positioned and connected by an aluminum band member 33 and fixed to the main body 12 so as not to move left and right. The magnet 22 on the seal body 10 side
Also, one of the left and right side ends is the N pole and the other is the S pole,
The polarities are arranged in opposite directions so that the magnets 23 on the slider 19 side are attracted to each other in a state of directly facing each other.

The switching tool 21 includes an inverted L-shaped passive leg 31 fixed to a holder 24 (free end) on the right end of the slider 19.
And a stopper 32 arranged inside the lower rail 5 and fixed with a screw. The lower end of the leg wall that bends downwards of the passive leg 31 always enters the lower rail 5,
When the door panel 2 is closed, it comes into contact with the stopper 32 near the stroke end.

As described above, when the door panel 2 is open, the paired magnets 22 and 23 are attracted to each other to hold the seal body 10 at the upper standby position. When the door panel 2 is closed to approach the stroke end, the passive leg 31 is received and supported by the stopper 32 as shown in FIG. Therefore, the slider 19 integrated with the passive leg 31 cannot move to the closed end side any more,
It slides relative to the guide frame 9 against the pulling force of the spring 20. By this relative sliding, the magnets 22 and 23 that have been attracted and joined until then move relative to each other so that the magnets 22 and 23 are displaced in the left-right direction, and the magnetic pole of one magnet 23 becomes
When passing through the center part in the left-right direction of the
3 repel each other and suddenly leave.

Therefore, the seal body 10 loses its supporting force and moves downward, and the bristles 16 provided at the lower end thereof contact the inner bottom surface of the lower rail 5 to allow a space between the lower edge of the door panel 2 and the floor surface. Shut off the gap. When the door panel 2 is completely closed, as shown in FIG. 1, the same polar edges of the paired magnets 22 and 23 oppose each other vertically and repel each other to press the seal body 10 against the floor surface. Therefore, it is possible to more reliably prevent sound, light, etc. from leaking out from the room partitioned by the door panel 2.
The door panel 2 is kept closed by the latch lock 6.

When the door panel 2 is opened and operated, the magnets 22 and 23, which have been displaced until then, relatively come close to each other.
Before the opposite poles of both magnets 22 and 23 face each other,
The attraction force of both magnets 22 and 23 overcomes the weight of the seal body 10 to raise the seal body 10 and hold it by attraction. This suction operation is completed before the side end of the seal body 10 reaches the stopper 32. In addition, the stopper 32 is provided with a U-shaped escape groove 32a. Therefore, the seal body 10
Does not interfere with the stopper 32, and the seal material 15 can pass through the upper edge of the escape groove 32a of the stopper 32 without any trouble.

The floor contacting device of the present invention can be applied to a sliding door in which the door panel 2 is opened and closed by the lower rail 5 via the door roller 34 as shown in FIG. Here, the guide frame 9 is arranged along the lower edge of one side of the door panel 2, and the seal body 10, the slider 19 and the like are incorporated therein. Further, the stopper 32 is arranged in the lower rail 5, and the passive leg 31 having an inverted L-shape in side view is connected to the slider 19. When the door panel 2 is closed, the sealing material 15 comes into contact with the floor surface to exert a sealing function.

FIG. 7 shows another embodiment in which the arrangement of the magnets 22 and 23 is changed. There, a magnet 22 is arranged at the center of the upper part of the seal body 10 so that the different poles face the front and rear surfaces, and a pair of sliders 19 are provided in front of and behind the magnet 22, and each slider 19 has a pair of magnets. 23 is arranged. In this embodiment, when the door panel 2 is open, the magnets 22 and 23 forming a pair closely face each other in a non-contact manner to hold the seal body 10 at the standby position shown by an imaginary line.
As can be understood from this embodiment, paired magnets 22
Two or more pieces of 23 can be configured as a pair, and the arrangement form thereof can be in the form of facing each other in the vertical direction, or in the form of facing each other on the three circumferential surfaces.

FIG. 8 shows still another magnet arrangement. There, a magnet 23 is arranged on the upper surface of the slider 19, a magnet 22 on the seal body 10 side is arranged above it, and the seal body 10 is levitationally supported by the repulsive force of both magnets 22 and 23. Further, when the magnets 22 and 23 are displaced to the left and right and the seal body 10 is moved downward as shown by an imaginary line, the iron piece 35 provided on the seal body 10 side is attracted by the magnet on the slider 19 side. , A downward suction force is applied to the seal body 10. However, in this case, the magnet 23 on the slider 19 side can pass through the lower surface of the magnet 22 on the seal body 10 side when the seal body 10 is lowered.

In addition to the above, the sealing material 15 of the sealing body 10
Can be made of rubber, felt, or a foam material having elasticity. The spring 20 can be formed of a spring such as a compression coil spring or a torsion coil spring. Switching tool 21
Can be provided anywhere between the door panel 2 and the door frame 1. The stopper 21 is provided so that it can be raised and lowered, and when the door panel 2 passes above it, the stopper 21 can be raised to receive the passive leg 31.

[Brief description of drawings]

FIG. 1 is a perspective view showing the principle structure of a floor contact device.

FIG. 2 is an overall front view of a sliding door.

FIG. 3 is an enlarged cross-sectional view of a main part in FIG.

4 is a cross-sectional view taken along the line AA in FIG.

FIG. 5 is a sectional view equivalent to FIG. 4 showing a floor contact state.

FIG. 6 is a schematic cross-sectional view showing another embodiment of the sliding door in which the arrangement of the floor-contacting device is changed.

FIG. 7 is a cross-sectional view showing another embodiment of the floor contacting device in which the arrangement of magnets is changed.

FIG. 8 is a cross-sectional view showing still another embodiment of the floor contacting device in which the arrangement of magnets is changed.

[Explanation of symbols]

 2 door panel 9 guide frame 10 sealing body 15 sealing material 19 slider 20 spring 21 switching tool 22/23 magnet

Claims (5)

[Claims] 1. A guide frame 9 arranged below the door panel 2.
A seal body 10 which is supported by a movable body, and this seal body 1
0 is a floor-contacting device including a mechanism for raising and lowering 0 in conjunction with the opening / closing operation of the door panel 2, the mechanism being disposed adjacent to the seal body 10 and provided with a guide frame 9
And a spring 19 for biasing the slider 19 to move toward the closed end side of the door panel 2, and a slider 19 provided between the slider 19 and the door frame 1 for springing the slider 19. A switching tool 21 that slides against the urging force of 20 and a sealing body 10 provided on each of the facing surfaces of the sealing body 10 and the slider 19.
Pairs of magnets 22.
3, the slider 19 is slid by the switching tool 21 against the closing stroke end of the door panel 2 against the urging force of the spring 20, and the magnets 22 and 23 forming a pair are attracted or repelled. Is released, and the seal body 10 is configured to move downward to the floor contacting posture in the downward direction. 2. A pair of magnets 22 in the floor contact state
2. The floor contacting device for a sliding door according to claim 1, wherein the magnets 22 and 23 are arranged on the seal body 10 and the slider 19 so that a repulsive force acts between them. 3. A slider 19 is arranged adjacent to the upper surface of the seal body 10, and has a passive leg 31 fixed to the free end of the slider 19 and a floor surface side to close the door panel 2. 3. The floor contacting device for a sliding door according to claim 1, wherein the switching tool 21 is configured by a stopper 32 that abuts and supports the passive leg 31 near the stroke end. 4. The slider 19 includes a plurality of plastic-molded holders 24 and a connecting plate 25 formed of a non-magnetic material for connecting the holders 24, and each holder 24 has a magnet 23 attached thereto. The seal body 10 includes a hollow frame formed of a non-magnetic material, and a seal material 15 fixed to a lower end of the hollow frame, and a magnet 22 is arranged on an upper portion of an inner surface of the hollow frame. The floor contact device for the sliding door described. 5. A groove type lower rail 5 in which a door panel 2 is openably and closably supported along an upper rail 4 via a runner 3 fixed to an upper portion of the door panel 2 and which abuts a seal body 10 on a floor surface. 5. The floor contacting device for a sliding door according to claim 3, wherein the lower rail 5 has a stopper 32 disposed therein.