JP2010144472A - Fixtures - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize fixtures capable of forming a watertight structure between a lower frame and a lower door frame when an air circulation part is closed by an on-off valve for opening and closing the air circulation part. <P>SOLUTION: The on-off valve 40 for opening and closing the air circulation part 30 is attached to the lower door frame 21 of a door body 2. When the on-off valve 40 is in the closing position to close the air circulation part 30, the on-off valve 40 is set in touch with the upper surface 11a of the lower frame 11 of a frame body 1, thereby forming the watertight structure between the lower frame 11 and the lower door frame 21. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a fitting in which a door body is attached to a frame body such as a folding door for a bathroom or a hinged door for a bathroom so as to be freely opened and closed.

Conventionally, in bathroom fittings, a door body having an air circulation function is used so that the air in the dressing room flows into the bathroom during bathroom ventilation, or the air circulates through the door body when the door body is opened or closed. The door can be opened and closed with light force.
For example, as disclosed in Patent Document 1, an air circulation part (vent hole) is formed in the lower heel of the door body, and an opening / closing valve (opening / closing plate) for opening and closing the air circulation part is attached to the lower heel. The on-off valve is held in the closed position that closes the air circulation part, and the door is made to swing to the open position where the on-off valve opens the air circulation part due to the air pressure difference between the bathroom (one room) and the dressing room (the other room) A fitting has been proposed in which the body has an air circulation function.
Japanese Patent Laid-Open No. 11-62408

In the conventional joinery described above, a sealing material (waterproof packing) is attached to the lower opening edge of the air circulation part of the lower arm, and when the on-off valve is in the closed position, the sealing material is in contact with the sealing material and is water-tight so that it can be showered in the bathroom. When using, the hot water of the shower is prevented from flowing into the dressing room through the air circulation part.
Also, in order to prevent hot water from the shower and hot water overflowing from the bathtub from flowing between the lower frame of the frame body and the lower wall of the door body, a seal is provided between the lower frame and the lower wall. It is watertight with wood.

In the above-mentioned fittings, when the on-off valve is open and the air circulation part is open, the air pressure in the dressing room is higher than the air pressure in the bathroom. Since it is difficult to flow into the dressing room from between the lower heel of the door body, there is no problem with the water tightness between the lower frame and the lower heel, but when the on-off valve is closed and the air circulation part is closed, There is no difference in the air pressure between the dressing room and the bathroom, and the hot water in the shower and the water overflowing from the bathtub can easily flow from the space between the lower frame and the lower arm into the dressing room. Watertightness is important.
Since the water tightness between the lower frame and the lower heel described above is determined by the sealing performance of the sealing material, in order to make the water tightness between the lower frame and the lower heel excellent, the sealing performance of the sealing material should be reduced. It must be improved, and its watertight structure is expensive.
For example, one side of the lower frame and the lower collar in the out-of-plane direction is water-tight with a one-side sealing material, and the other side of the lower frame and the lower jar in the out-of-plane direction is water-tight with an other-side sealing material to provide excellent water-tightness Therefore, the watertight structure is expensive.

  An object of the present invention is to provide a joinery that can improve the watertightness between the frame and the ridge by the on-off valve when the air circulation portion of the ridge of the door is closed.

The present invention is a joinery in which a door body is attached to a frame body so as to be freely opened and closed,
Forming an air circulation part that communicates with one side surface in the out-of-plane direction and the other side surface in the out-of-plane direction on the collar of the door body,
An open / close valve is attached to the bag movably across an open position for opening the air circulation part and a closed position for closing the air circulation part,
The fitting is characterized in that when the on-off valve is in the closed position, the on-off valve is in contact with the frame of the frame body so as to be watertight between the frame and the eaves.

The present invention is a joinery in which a door body is attached to a frame body so as to be freely opened and closed,
Forming an air circulation part communicating with one side surface in the out-of-plane direction and the other side surface in the out-of-plane direction on the lower arm of the door body;
An opening / closing valve is attached to the lower rod so as to be movable over an open position for opening the air circulation part and a closed position for closing the air circulation part,
When the on-off valve is in the closed position, the on-off valve is in contact with the lower frame of the frame body so as to be watertight between the lower frame and the lower rod.

In the present invention, an on-off valve is attached to one side of the lower heel in the out-of-plane direction, and by this on-off valve, water is sealed between the one side of the lower frame in the out-of-plane direction and one side of the lower heel in the out-of-plane direction. And
A sealing material can be provided for water-tightening between the other side of the lower frame in the out-of-plane direction and the other side of the lower collar in the out-of-plane direction.
In this way, when the on-off valve is in the open position, the space between the lower frame and the lower rod can be watertight with the sealing material.

In the present invention, a space between the lower end portion of the one side plate in the out-of-plane direction of the lower collar and the upper surface of the lower frame is defined as one side vent, and the other vent is formed in the other side plate in the out-of-plane direction of the lower collar. The other side vent and the one side vent communicate with each other as an air circulation part.
The base end portion of the on-off valve can be attached to the lower end portion of the one side plate so as to be swingable up and down, and the front end portion of the on-off valve can be in contact with the upper surface of the lower frame to be in the closed position.
In this way, when the on-off valve is in the closed position, the tip of the on-off valve contacts the upper surface of the lower frame uniformly, so that the watertightness between the lower frame and the lower rod can be further improved. .

In the present invention, the lower end of one side plate of the lower heel is located above the lower end of the other side plate,
The other side vent can be higher than the one side vent.
In this way, the vertical dimension of the one-side vent is large, the vertical dimension of the on-off valve is large, and the area where air pressure acts is large, so the on-off valve swings up and down even with a small air pressure difference. Move smoothly and reliably to the open and closed positions.
And since the space | interval of the lower end part of the other side board of a lower collar and the upper surface of a lower frame is small, the height dimension of the sealing material which water-tightens the space | interval near the other side of a lower frame and a lower collar can be made small.
Further, when the on-off valve is in the open position, hot water or the like that has flowed into the one side vent from one side of the door body does not flow from the other side vent to the other side of the door.

In the present invention, the vertical gutter and lower gutter of the door body are connected in contact with the inner side surface of the gutter and the longitudinal end face of the gutter,
The overall length of the on-off valve is shorter than the overall length of the lower rod, and a gap is formed between the longitudinal end surface of the on-off valve and the inner surface of the vertical rod,
A connecting block is attached to the lower rod so as to be in contact with the inner surface of the vertical rod, and the gap between the end surface of the on-off valve and the inner surface of the vertical rod can be closed with this connecting block.
In this way, the end face in the longitudinal direction of the on-off valve does not come into contact with the vertical shaft, so that it swings up and down smoothly.
Further, hot water or the like does not flow from one side of the door body to the other side through the gap between the end face of the on-off valve and the inner side surface of the vertical fence.

In the present invention, the on-off valve is a plate having a hard part and a soft part provided at the tip of the hard part,
The base end portion of the hard portion is attached to the lower collar so as to be swingable up and down, and the distal end portion of the soft portion is brought into contact with the upper surface of the lower frame so as to be in the closed position.
In this way, the on-off valve reliably swings up and down around the base end of the hard part, and the tip of the soft part contacts the upper surface of the lower frame. Can be made even better.

  According to the present invention, when the on-off valve attached to the door body is in the closed position, the on-off valve is in contact with the frame and water-tightens between the frame and the wall. When closed, the on / off valve can provide excellent watertightness between the frame and the ridge.

  Further, according to the present invention in which the rod is the lower rod and the frame is the lower frame, when the on-off valve attached to the lower rod of the door body is in the closed position, the on-off valve contacts the lower frame and the lower frame and the lower rod Therefore, when the air circulation part of the lower arm of the door is closed, the on / off valve can make the water tight between the lower frame and the lower arm excellent.

As shown in FIGS. 1, 2, and 3, a door 2 is attached to a frame 1 so as to be openable and closable as a fitting.
The frame 1 has an upper frame 10, a lower frame 11, and left and right vertical frames 12 connected in a square shape.
The door body 2 has an upper rod 20, a lower rod 21, and left and right vertical rods 22 connected in a square shape, and a face material 23 is mounted therein.
For example, as shown in FIG. 2 and FIG. 3, there are inward recesses 20 a, 21 a, 22 a on the one side in the out-of-plane direction of the upper rod 20, the lower rod 21, and the left and right vertical rods 22. , 21a, 22a are continuous four times.
The face material 23 has a peripheral edge mounted in the inwardly recessed portions 20a, 21a, and 22a that are continuous four times, and is fixed with an adhesive or the like.
The mounting of the face material 23 is not limited to the above.

The door body 2 is attached to the frame body 1 with one vertical rod 22 on the left and right sides, and is pivotably mounted in an out-of-plane direction over the open position and the closed position by a hinge 3 and attached to the other vertical rod 22 on the left and right sides. The door body 2 can be opened and closed with the door, and the joinery is used as a swing door.
This embodiment is a fitting for a bathroom, and the door body 2 is turned to the bathroom side to be in an open position.

As shown in FIG. 2, the lower arm 21 has an air circulation part 30 that communicates one side surface 21 b (for example, a bathroom side surface) with the other side surface 21 c (for example, a side surface of a dressing room) in the out-of-plane direction. The air circulation unit 30 allows air to flow from one side of the door body 2 in the out-of-plane direction (the bathroom side) to the other side of the out-of-plane direction (the dressing room side).
An open / close valve 40 that opens and closes the air circulation part 30 is attached to the lower rod 21.
The on-off valve 40 has an open position where the air circulation part 30 indicated by a solid line in FIG. 2 is opened (that is, a state where air flows through the air circulation part 30), and the air circulation part 30 as indicated by a virtual line in FIG. Is closed (that is, in a state where air does not flow through the air circulation portion 30) and the closed position.
When the on-off valve 40 is in the closed position, the on-off valve 40 is in contact with the lower frame 11, and the space between the lower frame 11 and the lower rod 21 is watertight.

  For example, the on-off valve 40 has a plate shape including a hard portion 41 made of hard resin such as polypropylene and a soft portion 42 made of soft resin such as elastomer, and the base end portion of the hard portion 41 (continuous with the soft portion 42). 41a is attached to the lower collar 21 so as to be swingable in the vertical direction, and the tip portion 42a of the soft portion 42 is in contact with the upper surface 11a of the lower frame 11 so as to close the air circulation portion 30. is there.

Thus, when the air circulation part 30 is obstruct | occluded by the on-off valve 40 which opens and closes the air circulation part 30, between the lower frame 11 and the lower rod 21 is water-tight, and the water-tightness is made excellent. Therefore, the structure for watertight between the lower frame 11 and the lower rod 21 can be made inexpensive.
In FIG. 2, one side of the out-of-plane direction between the lower frame 11 and the lower rod 21 is sealed with the on-off valve 40, and the other side of the out-of-plane direction is water-tight with the sealing material 5. The sealing material 5 seals the space between the lower frame 11 and the lower rod 21 when the on-off valve 40 is in the open position and the air circulation part 30 is open.

Further, if the on-off valve 40 has the hard portion 41 and the soft portion 42 as described above, the on-off valve 40 can be mounted on the lower rod 21 by the hard portion 41 so as to be swingable up and down, and the soft portion. The space between the lower frame 11 can be surely sealed by 42.
Moreover, since the on-off valve 40 can be molded at once using a hard resin and a soft resin called two-color molding, the on-off valve 40 can be easily manufactured.
Moreover, the sliding process is given to the part which touches the lower frame 11 of the soft part 42, and the smooth opening and closing of the door body 2 is not prevented.

Next, each part will be described in detail.
As shown in FIG. 4, the lower rod 21 is composed of one side plate 24 in the out-of-plane direction, the other side plate 25 in the out-of-plane direction, the upper horizontal plate 26, and the intermediate connecting horizontal plate 27, and the upper hollow portion 28 and the downward groove portion 29. Have. A screw hole 21d is formed in the upper horizontal plate.
A lower end 24 a of the one side plate 24 is opposed to the upper surface 11 a of the lower frame 11, and a one side vent 31 is opened between the two in the downward groove 29.
The other side plate 25 has an other side vent port 32 opened to the upper hollow portion 28. In this embodiment, the upper end portion 25a of the other side plate 25 and the other side portion 26a of the upper horizontal plate 26 are discontinuous, and the other side vent 32 is between them.
A plurality of intermediate vents 33 communicating with the upper hollow portion 28 and the downward groove portion 29 are formed in the intermediate connection lateral plate 27 at intervals in the longitudinal direction.
The one-side vent 31, the intermediate vent 33, and the other-side vent 32 communicate with each other as the above-described air circulation part 30.
The one-side vent 31 and the other-side vent 32 are continuous over the entire length of the lower collar 21 in the longitudinal direction.

The base end portion of the on-off valve 40 is attached to the lower end portion 24a of the one side plate 24 of the lower rod 21 so as to be swingable up and down.
When there is no difference in the air pressure between the bathroom and the dressing room, the on-off valve 40 swings downward by its own weight, and the front end of the on-off valve 40 is positioned on the upper surface 11a of the lower frame 11 as shown by the phantom line in FIG. The air flow portion 30 is closed by closing the one-side vent 31.
When the air pressure in the dressing room is higher than the air pressure in the bathroom, for example, when the bathroom is ventilated or when the door body 2 is opened, the on-off valve 40 swings upward as shown by the solid line in FIG. The air vent 31 is opened by opening the side vent 31.

  In this way, the base end portion of the opening / closing valve 40 is attached to the lower end portion 24a of the one side plate 24 of the lower rod 21, and the tip end portion is in contact with the upper surface 11a of the lower frame 11. The tip of the on-off valve 40 is in contact with the upper surface 11a of the lower frame 11 without gaps without touching the lower rod 21 and the like, and the water tightness between the lower frame 11 and the lower rod 21 can be further improved. .

The lower end portion 24a of the one side plate 24 of the lower collar 21 is positioned above the lower end portion 25b of the other side plate 25, and the vertical dimension of the one side vent 31 is increased.
As a result, since the vertical dimension of the on-off valve 40 is large and the area on which the air pressure acts is large, the on-off valve 40 swings upward due to a small air pressure difference and moves to the open position. Move to the closed position.
And the space | interval of the lower end part 25b of the other side board 25 of the lower collar 21 and the upper surface 11a of the lower frame 11 is small, and the height dimension of the sealing material 5 can be made small.

  Since the other-side vent 32 is higher than the one-side vent 31, shower hot water flowing from the one-side vent 31 and hot water overflowing from the bathtub when the on-off valve 40 is in the open position are vented to the other side. It does not flow from the mouth 32 to the dressing room side.

Next, the on-off valve 40 will be described in detail.
As shown in FIG. 4, the base end portion 41 a of the hard portion 41 of the on-off valve 40 is substantially circular in cross section, and the base end portion 41 a is formed in the lower end portion 24 a of the one side plate 24 of the lower collar 21. It is fitted and attached to the recessed portion 24b of the upper and lower portions so as to be rotatable up and down.
By doing in this way, the on-off valve 40 can be easily attached to the lower collar 21.

As shown in FIG. 5, the thickness t <b> 1 of the hard part 41 is thicker than the thickness t <b> 2 of the soft part 42.
As a result, the rigidity of the hard portion 41 is further increased, and it is easy to swingably attach to the lower collar 21, and the soft portion 42 is easily deformed and uniformly contacts the upper surface 11 a of the lower frame 11.
A portion 42b of the soft portion 42 closer to the hard portion 41 has a thickness that gradually decreases from t1 to t2.
The tip portion 42c of the soft portion 42 is curved in an arc shape.
As a result, the tip portion 42c of the soft part 42 is in contact with the upper surface 11a of the lower frame 11 in a wide area, and the predetermined shape can be maintained without warping even if the plate thickness t2 of the soft part 42 is thin. .
The front end portion 42a of the soft portion 42 is substantially circular in cross section and is easy to mold.

Next, the connection of the lower rod 21 and the vertical rod 22 will be described.
As shown in FIGS. 6, 7, and 8, connecting blocks 50 are attached to both ends in the longitudinal direction of the lower collar 21.
The connecting block 50 is in contact with the inner surface 22b in the in-plane direction of the vertical rod 22, and the screw 6 is screwed into the screw hole 21d of the lower rod 21 from the vertical rod 22 so that the end surface 21e in the longitudinal direction of the lower rod 21 is The lower rod 21 and the vertical rod 22 are connected by being pressed against the inner side surface 22 b of 22.
The lower part of the connecting block 50 protrudes below the lower end 24a of the one side plate 24 of the lower collar 21.
When the on-off valve 40 is in the closed position, both ends in the longitudinal direction on the back surface (other side surface in the out-of-plane direction) of the on-off valve 40 face one side surface 50 a in the out-of-plane direction at the lower part of the connecting block 50. There is a gap between the back surface 40a and one side surface 50a.

The full length of the on-off valve 40 is shorter than the full length of the lower rod 21, and there is a gap S between the longitudinal end surface 40 b of the on-off valve 40 and the inner side surface 22 b of the vertical rod 22.
As a result, the on-off valve 40 is likely to swing up and down between the open position and the closed position. That is, when the end surface 40b of the on-off valve 40 comes into contact with the inner side surface 22b of the vertical rod 22, it becomes a resistance when the on-off valve 40 swings up and down, so it is difficult to swing up and down.

Further, since the back surface 40a of the on-off valve 40 faces the one side surface 50a of the connecting block 50, the gap S between the end surface 40b of the on-off valve 40 and the inner side surface 22b of the vertical rod 22 is used for connection. Blocked at block 50.
Therefore, when the on-off valve 40 is in the closed position, hot water from the shower, hot water overflowing from the bathtub, and the like do not enter the dressing room side.
Moreover, although the hot water of the shower mentioned above, the hot water overflowing from the bathtub, etc. infiltrate into the gap between the lower end surface of the vertical gutter 22 and the lower frame 11, it does not enter the dressing room side by the sealing material 5 described above. .

The connecting block 50 includes a main body 51 that fits into the upper hollow portion 28 and the downward groove portion 29 of the lower collar 21, and a vertical plate 52 and a circular plate 53 provided on the main body 51.
The vertical plate 52 and the circular plate 53 protrude toward one end in the in-plane direction from one end surface 51 a in the in-plane direction of the main body 51.
The main body 51 has an upper portion 54 that fits into the upper hollow portion 28 of the lower collar 21 and a lower portion 55 that fits into the downward groove portion 39, and one side surface of the lower portion 55 in the out-of-plane direction is the aforementioned. It is one side 50a.
The vertical rod 22 is a hollow long material having a hollow portion with one side plate 60 and the other side plate 61 in the out-of-plane direction, and one end plate 62 and the other end plate 63 in the in-plane direction. The one end plate 62 has a screw insertion hole 64 and a large diameter hole 65, and the other end plate 63 has a tool insertion hole 66.

The upper portion 54 and the lower portion 55 of the main body 51 of the connecting block 50 are fitted into the upper hollow portion 28 and the downward groove portion 29 of the lower rod 21, respectively, and one end surface 51a of the main body 51 is the end surface 21e of the lower rod 21. The vertical plate 52 and the circular plate 53 are attached so as to protrude from the end surface 21e of the lower collar 21.
Then, by connecting the vertical rod 22 and the lower rod 21 with the screw 6, the circular plate 53 of the connecting block 50 is fitted into the large-diameter hole 65, and the one end surface 51a of the main body 51 is inside the vertical rod 22. The vertical plate 52 is inserted into the inwardly recessed portion 22a of the vertical rod 22 while being in contact with the side surface 22b, and the lower surface of the face member 23 is in contact with the upper end surface 52a of the vertical plate 52.
This prevents the above-described shower hot water, hot water overflowing from the bathtub, or the like from entering the dressing room side from the lower portion of the inward recess 22 of the vertical basket 22 where the face material 23 is not mounted.
The connection block 50 is not shown in FIG.

In the above-described embodiment, the one side vent 31 is formed between the one side plate 24 of the lower collar 21 and the upper surface 11a of the lower frame 11. However, the one side vent 31 may be formed in the lower collar 21 itself. .
For example, as shown in FIG. 9, the lower collar 21 has a lower horizontal plate 70, and one side is disposed between one side end portion 70 a of the lower horizontal plate 70 in the out-of-plane direction and the lower end portion 24 a of the one side plate 24. The vent 31 is used.
In this case, when the on-off valve 40 is in the closed position, the upper and lower intermediate portion (soft portion 42) is in contact with one end portion 70a of the lower horizontal plate 70, and the tip end portion 42a is on the upper surface 11a of the lower frame 11. You may make it touch.
The upper and lower intermediate portions of the on-off valve 40 may not be in contact with the one side end portion 70a of the lower horizontal plate 70.

In the above-described embodiment, the air circulation part 30 is formed in the lower rod 21 and the opening / closing valve 40 is attached to the lower rod 21 to describe the ventilation structure between the lower frame 11. 20 and the upper frame 10, and the vertical rod 22 and the vertical frame 12 may be used.
For example, when the air circulation part 30 is formed in the upper collar 20 and the on-off valve 40 is attached to the upper collar 20 to close the air circulation part 30, the upper frame 10 is in contact with the upper frame 10. Make it watertight.
Further, when the air circulation part 30 is formed in the vertical gutter 22 and the on-off valve 40 is attached to the vertical gutter 22 to close the air circulation part 30, the vertical gutter 22 is in contact with the vertical gutter 22 and between the vertical gutter 22 and the vertical frame 12. Make it watertight.
In short, the present invention forms the air circulation part 30 on the ridge that forms the door body 2, attaches the opening / closing valve 40, and when the opening / closing valve 40 closes the air circulation part 30, the opening / closing valve 40 is framed. It is a joinery that is in contact with a frame forming the body 1 and watertightly seals between the frame and the heel.

It is the whole joinery front view. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is an expanded sectional view of an on-off valve attachment part. It is an enlarged view of an on-off valve. It is an enlarged front view of the connection part of the vertical gutter and lower gutter of a door body. It is CC sectional drawing of FIG. It is an exploded perspective view of a vertical gutter, a connecting block, and a lower gutter. It is sectional drawing of the on-off valve attachment part of embodiment from which the shape of a lower rod differs.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Frame body, 2 ... Door body, 11 ... Lower frame, 11a ... Upper surface, 12 ... Vertical frame, 21 ... Lower arm, 21b ... One side surface, 21c ... Other side surface, 21e ... End surface, 22 ... Vertical shaft, 22b ... Inner side face 30 ... Air circulation part 31 ... One side vent hole 32 ... Other side vent hole 40 ... Open / close valve 40a ... Back face 40b ... End face 41 ... Hard part 41a ... Base end part 42 ... Soft Part, 42a ... tip part, 42c ... tip part, 50 ... block for connection, 50a ... one side.

Claims (7)

It is a fitting with a door attached to the frame so that it can be opened and closed,
Forming an air circulation part that communicates with one side surface in the out-of-plane direction and the other side surface in the out-of-plane direction on the collar of the door body,
An open / close valve is attached to the bag movably across an open position for opening the air circulation part and a closed position for closing the air circulation part,
A fitting, wherein when the on-off valve is in a closed position, the on-off valve is in contact with the frame of the frame body so as to be watertight between the frame and the eaves. It is a fitting with a door attached to the frame so that it can be opened and closed,
Forming an air circulation part communicating with one side surface in the out-of-plane direction and the other side surface in the out-of-plane direction on the lower arm of the door body;
An opening / closing valve is attached to the lower rod so as to be movable over an open position for opening the air circulation part and a closed position for closing the air circulation part,
A joinery characterized in that when the on-off valve is in the closed position, the on-off valve is in contact with the lower frame of the frame body so as to be watertight between the lower frame and the lower heel. An on-off valve is attached to one side of the lower heel in the out-of-plane direction, and with this on-off valve, water is sealed between the one side of the lower frame in the out-of-plane direction and one side of the lower heel in the out-of-plane direction.
The joinery according to claim 2, wherein a seal member is provided that seals water between the other side of the lower frame in the out-of-plane direction and the other side of the lower heel. Between the lower end portion of the one side plate in the out-of-plane direction of the lower collar and the upper surface of the lower frame, one side vent is formed, and the other side vent is formed in the other side plate in the out-of-plane direction of the lower collar. The ventilation hole and the one-side ventilation hole communicate with each other as an air circulation part,
The fitting according to claim 2 or 3, wherein a base end portion of an on-off valve is attached to a lower end portion of the one side plate so as to be swingable up and down, and a front end portion of the on-off valve is in contact with an upper surface of a lower frame to be in a closed position. The lower end of one side plate of the lower collar is located above the lower end of the other side plate,
The joinery according to claim 4, wherein the other side vent is higher than the one side vent. Connecting the vertical gutter and lower gutter of the door body in contact with the inner side surface of the gutter and the longitudinal end face of the gutter,
The overall length of the on-off valve is shorter than the overall length of the lower rod, and a gap is formed between the longitudinal end surface of the on-off valve and the inner surface of the vertical rod,
The connecting block is attached to the lower rod so as to be in contact with the inner surface of the vertical rod, and the connecting block closes the gap between the end surface of the on-off valve and the inner surface of the vertical rod. -Joinery of any one of 5. The on-off valve is a plate having a hard part and a soft part provided at the tip of the hard part,
The base end portion of the hard portion is attached to a lower arm so as to be swingable up and down, and the distal end portion of the soft portion is in contact with the upper surface of the lower frame to be in a closed position. Joinery.

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