JP3242597B2 - Door airtightness - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door airtightness device for ensuring airtightness between a door and a lower frame.

[0002]

2. Description of the Related Art An airtight device for ensuring airtightness between a door and a lower frame which opens and closes by rotating about a vertical axis is disclosed in Japanese Utility Model Laid-Open Nos. 55-13729 and 61-120893. No., etc., is built into the lower end of the door so as to be able to move up and down freely, and a door bottom with an airtight material laid at the lower end, a rod that contacts the vertical frame on the hanging side when closing the door and lowers the door bottom, It is composed of a spring that raises the door bottom,
In any case, since the adjustment of the length of the rod protruding from the door when opening the door is performed by turning the rod with a driver, it is difficult to operate, and when the door is closed, the rod directly contacts the vertical frame, There is a problem that impact is applied to the rod and the vertical frame at the time of contact.

In the case of a floor hinge whose vertical axis is installed in a lower frame as in Japanese Utility Model Application Laid-Open No. 61-120893, the door bottom must not interfere with the floor hinge. Therefore, the airtightness around the floor hinge cannot be ensured depending on the airtight material of the door bottom.

The present invention solves the above problem and proposes an airtight device having a form different from that of a conventional airtight device.

[0005]

According to the first aspect of the present invention, there is provided an operating member which is connected to a hanging side of a door bottom having an airtight material laid at a lower end so as to protrude from the door, and which pushes the door bottom toward the door tip when the door is closed. By attaching the covering cover to the hanging side of the door, the impact caused by the operation member directly contacting the vertical frame when the door is closed is reduced.

The cover comes into contact with the vertical frame when the door is closed by being attached to the surface on the hanging side of the door. However, when the door is to be closed by covering the operating member from the vertical frame side, a portion close to the vertical frame is provided. And the operation member is gradually pressed, so that no shock is applied to the operation member and the vertical frame.

When the vertical axis is a floor hinge,
By forming an opening for accommodating the longitudinal axis near the hanging base of the door bottom as described in the above, interference between the door bottom and the floor hinge is avoided. As a result of avoiding interference, the door bottom can be provided with a length extending up to the vertical frame with the floor hinge interposed therebetween, so that an airtight material is attached to a portion of the door bottom around the floor hinge to thereby provide airtightness around the floor hinge. Can be secured.

According to a third aspect of the present invention, there is provided a door bottom fixed to a lower end portion of the door and supporting the airtight material in a vertically movable manner, and an elevating member capable of reciprocating in the width direction of the door with respect to the door bottom so as to raise and lower the airtight material with reciprocation. An air-tight device from an urging member for urging the elevating member to the hanging side, and an operating member connected to the hanging side of the elevating member, contacting the vertical frame when the door is closed, and detaching from the vertical frame when the door is opened. By forming an opening to accommodate the vertical axis in the operating member, it is possible to secure airtightness around the floor hinge while avoiding interference between the door bottom and the floor hinge when the vertical axis is a floor hinge To

According to a third aspect of the present invention, the actual climbing is performed except for the operation member.
Although it is common with No. 515075, actual climbing No. 2515075 cannot be applied as it is to the case where the vertical axis is a floor hinge, whereas claim 3 has an opening in the operating member, so that the vertical axis is a hinge. There is an advantage that any of the floor hinges can be handled.

When the door is closed, the operating member movable with the elevating member is positioned close to the vertical frame with the door bottom interposed therebetween. Therefore, if an airtight material is laid at the lower end of the operating member, the door member is secured by the door bottom. There is also an advantage that airtightness around the floor hinge, which cannot be achieved, can be secured.

According to a fourth aspect of the present invention, a door bottom is provided at a lower end of the door so as to be able to move up and down, and an airtight material is laid at a lower end thereof, and is installed around a floor hinge, and a recess having a relatively low level is formed on the door tip side. The airtight device is constituted by an operating member connected to the hanging base side of the door cover and the bottom of the door bottom, entering the recess of the pedestal cover when the door is closed, and detaching from the recess when the door is opened. By lowering the door bottom when entering the door and raising it when detached from the recess, without using the conventional biasing means for raising the door bottom when opening the door,
Raise and lower the door bottom as the door opens and closes.

In this case, since the operating member is always in contact with or in contact with the pedestal cover, and the door bottom is raised and lowered by entering and leaving the recess, no impact is applied to the vertical frame and the door when the door is closed.

According to a fifth aspect of the present invention, a door bottom is provided at the lower end of the door so as to be able to move up and down, an airtight material is laid at the lower end, a roller pivotally supported below the door bottom, and a lower frame provided when the door is closed. Construct an airtight device from a rail that is laid along the airtight material of the door bottom and that the airtight material of the door bottom contacts when the door is closed, and that the roller is positioned on the lower frame when the door is closed, and the airtight material contacts the rail. Accordingly, the door bottom is moved up and down together with the opening and closing of the door without using the urging means as in the fourth aspect.

In this case, since the rollers move up and down the door by moving over the rails, no impact is applied to the vertical frame and the door when the door is closed.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The airtight device according to claim 1 is shown in FIGS.
As shown in the figure, the door bottom 2 is supported at the lower end of the door 7 so as to be able to move up and down, and the lower end is provided with an airtight material 1. The door bottom 2 is connected to the door 7 and the door bottom 2 to suspend and support the door bottom 2.
An operation member 11 that is connected to the door bottom 2 in a state where the support member 3 has elasticity, protrudes from the door 7 to the hanging side, and pushes the door bottom 2 toward the door tip side when the door 7 is closed. And a cover 12 that is attached so as to cover the operation member 11 and contacts the vertical frame 8 when the door 7 is closed.

The door bottom 2 is composed of juxtaposed find pieces 2a and 2a and a prospect piece 2b.
Airtight material 1 is laid near 2a. In the drawing, the vertical axis supporting the door 7 is the floor hinge 10. Therefore, in order to avoid collision with the floor hinge 10, an opening 2c for storing the vertical axis near the vertical frame 8 of the prospective piece 2b of the door bottom 2 is provided. However, when the vertical axis is a hinge, it is not necessary to form the opening 2c.

The supporting member 3 is formed by bending or bending a single plate so as to have a lower end portion of the door 7, in the drawing, a piece overlapping a prospective piece of the lower frame and a prospective piece 2 b of the door bottom 2. The two pieces are connected to the door 7 and the door bottom 2, and an intermediate portion of the two pieces acts as a spring for returning the door bottom 2 to the original position when the door bottom 2 is lowered with respect to the door 7.

The operating member 11 is screwed into the door bottom 2 substantially in the length direction thereof, and the tip of the vertical frame 8 projects from the end face of the door 7 toward the vertical frame 8. The length of the tip of the operating member 11 protruding from the door 7 is adjusted by adjusting the length of screwing into the door bottom 2.

The cover 12 is provided on the door 7 as shown in FIG.
And cover the operation member 11 with the back surface in contact with the tip of the operation member 11 or with a clearance as shown in (b). The cover 12 contacts the vertical frame 8 and pushes the operating member 11 toward the door end, thereby lowering the door bottom 2 as shown by a chain line in FIG. 4 (b). As a result, when the door 7 is closed, the operating member 11 is slowly pressed to lower the door bottom 2 because the door 7 is kept in contact with the vertical frame 8 from both sides in the expected direction to the center in the expected direction. When the door 7 is opened, the operation member 11 is slowly released from the vertical frame 8 and the door bottom 2 is raised.

In FIG. 4A, similarly to FIG. 2, when the vertical axis is the floor hinge 10, in order to avoid collision with the floor hinge 10, the vertical axis is shifted toward the vertical frame 8 of the prospective piece 2b of the door bottom 2. An opening 2c for accommodating therein is formed.

FIGS. 6A and 6B show an example for securing airtightness around the floor hinge 10 which is not secured by the airtight material 1 of the door bottom 2. FIG. (a) shows the case where the airtight material 13 is arranged between the vertical frame 8 and the floor hinge 10, and (b) shows the case where the airtight material 13 is attached to the lower end of the vertical frame of the door 7. 8a in Fig. 6- (a)
Denotes a backing plate for protecting the vertical frame 8 from collision with the operation members 4 and 11. The airtightness around the floor hinge 10 is also ensured by laying an airtight material at the lower end of the door bottom 2 near the vertical frame 8.

As shown in FIG. 7, the airtight device according to the third aspect is fixed to the lower end of the door 7, and supports the airtight material 1 so as to be able to move up and down. An elevating member 14 that is movable and raises and lowers the airtight material 1 with reciprocation, and an urging member that urges the elevating member 14 to the hanging side.
15 and an operating member 16 connected to the hanging side of the elevating member 14 and coming into contact with the vertical frame 8 when the door 7 is closed and detaching from the vertical frame 8 when the door 7 is opened. The operation member 16 has an opening 17 for receiving the vertical axis.

The airtight material 1 is suspended and supported by the lifting member 14.
The suspension member 18 having a small rigidity is connected, and the airtight material 1 is connected to the tip of the suspension member 18. The suspension member 18 is partially forcibly bent by the guide member 19 fixed to the door bottom 2, and the lower end of the suspension member 18 is moved to the position of the guide member 19 with the movement of the lifting member 14 along the door bottom 2. The airtight material 1 moves up and down.

7 (a) shows the open state of the door 7, and FIG. 7 (b) shows the closed state. In the open state of the door 7, the elevating member 14 is suspended by the urging member 15 which is engaged with the door bottom 2. The airtight material 1 is urged toward the original side and maintains the state in which the airtight material 1 has risen.
When the door 7 is closed and the operating member 16 is pushed toward the door top, the operating member 16 moves the elevating member 14 toward the door top, and the airtight material 1 descends. In FIG. 7, a part corresponding to the operation member 11 in FIGS. 3 to 5 is connected to the hanging side of the operation member 16, and this part is brought into contact with the vertical frame 8.

The opening 17 of the operation member 16 is formed in a section where the opening 17 interferes with the floor hinge 10 when the operation member 16 moves, so that the collision between the operation member 16 and the floor hinge 10 is avoided regardless of opening and closing of the door 7.

In the present invention, as shown in FIG.
The airtightness around the floor hinge 10 can be ensured by laying the airtight material 20 at the lower end of the floor hinge.

The airtight device according to claim 4 is disposed at the lower end of the door 7 so as to be able to move up and down, and is installed around the door bottom 2 on which the airtight material 1 is laid at the lower end and the floor hinge 10, as shown in FIG. A pedestal cover 21 having a relatively low level recess 22 formed on the door tip side, and connected to the hanging side of the door bottom 2, enters the recess 22 of the pedestal cover 21 when the door 7 is closed, and opens when the door 7 is opened. The operation member 23 is detached from the concave portion 22. When the vertical axis is the floor hinge 10, the airtightness between the door 7 and the lower frame 25 is ensured.

According to the present invention, when the operating member 23 enters the recess 22 of the pedestal cover 21, the door bottom 2 descends and the airtight material 1 comes into contact with the lower frame 25. 2 rises.

FIG. 8 shows that the door bottom 2 is
An example in the case of hanging and supporting is shown. The number of suspension members 24 is not limited to one. In this case, as shown by the solid line in FIGS.
The door bottom 2 descends by being stored in the inside, the airtight material 1 is in contact with the lower frame 25, and when the door 7 is open, the operating member 23 rides on a portion higher in level than the concave portion 22, as indicated by a chain line. The door bottom 2 rises. In FIG. 8, the operation member 23 has a plate shape, but the shape of the operation member 23 does not matter.

FIG. 9 shows an example in which the door bottom 2 is simply arranged in the lower end portion of the door 7 so as to be able to move up and down, and a roller rotating around a horizontal axis is used as the operation member 23. Also in this case, as shown by solid lines in FIGS. 9A and 9B, when the door 7 is in the closed state, the operation member 23 as a roller is accommodated in the recess 22.
The door bottom 2 is in a lowered state, and when the door 7 is open, the operation member 23 rides on a portion higher in level than the concave portion 22 as shown by a chain line, and the door bottom 2 rises.

When the door bottom 2 rises, the level at which the door bottom 2 engages with the projection 7a protruding inside the door 7
It is regulated by locking 2d.

8 and 9, the operating member 23 always moves on the pedestal cover 21, so that the door bottom 2 is supported by the pedestal cover 21 regardless of whether the door 7 is opened or closed.

As shown in FIG. 11, the airtight device according to the fifth aspect is disposed at the lower end of the door 7 so as to be able to move up and down, and at the lower end a door bottom 2 on which an airtight material 1 is laid, and is pivotally supported below the door bottom 2. The door comprises a roller 26 and a rail 27 which is laid on the lower frame 25 along the airtight material 1 of the door bottom 2 when the door 7 is closed, and which comes into contact with the airtight material 1 of the door bottom 2 when the door 7 is closed. When the door is closed, the airtight material 1 comes into contact with the rail 27 to ensure airtightness between the door 7 and the lower frame 25.

In the drawing, the airtight materials 1 and 1 are laid in parallel with the door bottom 2, and the rails 27 and 27 are also arranged in parallel to ensure the stability of the roller 26 when the door 7 is closed. However, if the stability of the roller 26 can be ensured by forming a recess in the lower frame 25, etc., the airtight material 1 and the rail 27
Need not be paralleled.

The roller 26 is rotatably supported around a horizontal axis facing the width direction of the door 7 as shown in FIGS. 11 (a) and 11 (c). Shape that does not give The airtight material 1 has a flat shape in the width direction of the rail 27 so that the airtight material 1 can easily contact the rail 27 when the door 7 is closed.

In the present invention, when the door 7 is closed, the roller
The door bottom 2 is supported by the lower frame 25 and the floor surface because the 26 contacts the lower frame 25 and contacts the floor surface in the open state.

When the door 7 is open and the roller 26 is in contact with the floor, the airtight material 1 is in a state of floating from the floor,
The door 7 is closed, the rollers 26 are located between the rails 27, 27 arranged in parallel, and the airtight material 1 is
Touch 27.

In the present invention, it does not matter whether the vertical axis is the floor hinge 10 or the hinge.

[0039]

According to the first aspect of the present invention, when the door is closed, the cover for covering the operating member that pushes the door bottom toward the door tip is attached to the hanging side of the door, so that the operating member directly contacts the vertical frame when the door is closed. Shock can be reduced.

In the second aspect, the opening for accommodating the vertical axis is formed near the vertical frame of the door bottom. Therefore, when the vertical axis is a floor hinge, the interference between the door bottom and the floor hinge is avoided while the vertical axis is close to the vertical frame of the door bottom. The airtightness around the floor hinge can be ensured by laying an airtight material on the floor.

According to a third aspect of the present invention, an opening for accommodating the vertical axis is formed in the operating member which reciprocates in the width direction of the door with respect to the door bottom, contacts the vertical frame when the door is closed, and separates from the vertical frame when the door is opened. Therefore, when the vertical axis is a floor hinge, by attaching an airtight material to the operation member while avoiding interference between the door bottom and the floor hinge, airtightness around the floor hinge that cannot be secured by the door bottom can be secured.

According to the fourth aspect, since the door bottom is raised and lowered by the pedestal cover having a relatively low level concave portion formed on the door tip side, no urging means for raising the door bottom when the door is opened is not required.

According to a fifth aspect of the present invention, the door bottom is raised and lowered by a roller pivotally supported below the door bottom and a rail laid on the lower frame, and when the door is closed, the airtight material is brought into contact with the rail so that the door is closed. In order to secure the airtightness, no urging means for raising the door bottom when the door is opened is required as in the fourth aspect.

According to a fourth aspect of the present invention, the operating member is always in contact with or in contact with the pedestal cover, and the door bottom is moved up and down by entering and leaving the recess. In a fifth aspect, the door is moved up and down by the roller getting over the rail. In either case, no impact is applied to the vertical frame and the door when the door is closed.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a relationship between an airtight device and a door.

2A is a plan view showing an airtight device, FIG. 2B is a side view thereof, and FIG. 2C is an end view of FIG. 2B.

FIG. 3 is an elevational view showing a state in which the airtight device of claim 1 is attached to a door.

FIG. 4A is a perspective view showing an airtight device without a cover, and FIG. 4B is a side view showing a state of ascending and descending.

FIG. 5A is a perspective view showing a state when a cover is attached,
(b) is a plan view showing the opening and closing of the door and the state of the cover.

6A is a perspective view showing a state in which an airtight material is arranged between a floor hinge and a vertical frame, and FIG. 6B is a perspective view showing a state in which an airtight material is attached to a lower end of a vertical frame of a door. is there.

FIG. 7A is a side view showing the airtight device of claim 3 when the door is open, and FIG. 7B is a side view showing the airtight device when the door is closed.

FIG. 8 (a) is a side view showing the airtight device according to claim 4,
(b) is a plan view thereof.

FIG. 9 (a) is a side view showing another airtight device according to claim 4, and FIG. 9 (b) is a plan view thereof.

FIG. 10 is a perspective view showing a pedestal cover used in FIGS. 8 and 9;

11 (a) is an elevation view showing a state in which the airtight device of claim 5 is attached to a door, FIG. 11 (b) is a plan view thereof, and FIG. 11 (c) is an end view of FIG.

[Explanation of symbols]

1 ... airtight material, 2 ... door bottom, 2a ... find piece, 2b
… Prospect piece, 2c… opening, 2d… locking part, 3… support member, 7… door, 7a… protrusion, 8… vertical frame, 8a… backing plate, 10… floor hinge , 11 operating member, 12 cover, 13 airtight member, 14 elevating member, 15 urging member, 16 operating member, 17 opening, 18 hanging member, 19
…… Guide member, 20 …… Airtight material, 21 …… Pedestal cover, 22…
... recess, 23 ... operating member, 24 ... hanging member, 25 ... lower frame, 26 ... roller, 27 ... rail.

Claims (5)

(57) [Claims] An airtight device which is built in a lower end portion of a door that opens and closes around a vertical axis, moves up and down with opening and closing of the door, descends when the door is closed, and secures airtightness with a lower frame. A door bottom supported at the lower end of the door so as to be able to move up and down and an airtight material is laid at a lower end, a support member having elasticity connected to the door and the door bottom and suspending and supporting the door bottom, and protruding from the door at the hanging side of the door bottom. Connected in a state where
An operating member that pushes the door bottom toward the door tip when the door is closed,
It is attached to the hanging side of the door so as to cover the operation member,
An airtight door device consisting of a cover that contacts the vertical frame on the hanging side when the door is closed. 2. The door hermetic device according to claim 1, wherein an opening for accommodating the longitudinal axis is formed near the hanging base of the door bottom. 3. An airtight device built in a lower end portion of a door that opens and closes around a vertical axis, moves up and down with opening and closing of the door, descends when the door is closed, and secures airtightness with a lower frame. A door bottom fixed to the lower end of the door and supporting the airtight material in an ascending and descending manner, an elevating member capable of reciprocating in the width direction of the door with respect to the door bottom, and elevating and lowering the airtight material with reciprocation, and moving the elevating member to the hanging side. An operating member that is connected to the hanging side of the lifting member and that is in contact with the vertical frame on the hanging side when the door is closed, and detaches from the vertical frame when the door is opened, An airtight device for a door in which an opening for accommodating the vertical axis is formed. 4. An airtight device built in a lower end portion of a door that opens and closes around a floor hinge, moves up and down with opening and closing of the door, descends when the door is closed, and secures airtightness with a lower frame. A door bottom that is disposed at the lower end of the door so as to be able to move up and down, an airtight material is laid at the lower end, a pedestal cover that is installed around the floor hinge, and a relatively low-level recess is formed on the door tip side, and a door bottom. An airtight device for a door, comprising an operating member connected to the hanging side, which enters into the recess of the pedestal cover when the door is closed, and comes off from the recess when the door is opened. 5. An airtight device built in a lower end portion of a door that opens and closes around a vertical axis, moves up and down with opening and closing of the door, descends when the door is closed, and secures airtightness with a lower frame. A door bottom, which is disposed at the lower end of the door so as to be able to move up and down, and an airtight material is laid at the lower end, a roller pivotally supported below the door bottom, and a lower frame, laid along the airtight material of the door bottom when the door is closed. A door airtight device comprising a rail that comes into contact with an airtight material at the door bottom when the door is closed.