JPH10292747A - Airtight structure of door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To securely seal the gap between the lower end face of a door and the ground face without hindrance against a dropping metal tool provided in the door. SOLUTION: A dropping metal tool 2 and an airtight device 3 are equipped in a door body 1 openably and closably pivoted. And a converting mechanism 4 which converts the vertical movement of the plate 23 of the dropping metal tool 2 to the lateral movement of the adjuster 36 of the airtight device 3 is provided in the door body. When the door body 1 is held in the closed position by the dropping metal tool 2, the adjuster 35 is laterally transferred to the warping direction of an elastic member 34 through the converting mechanism 4 and a movable frame 32 is forced to project across the lower end face of the door body 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an airtight structure of a door provided in a door for a house or the like.

[0002]

2. Description of the Related Art Generally, as shown in FIG. 4, a double-door type door comprising a main door D1 provided with a lock J and a child door D2 provided with a drop-off fitting (not shown) is employed as a door of a house. The parent door D1 and the child door D2 are pivotally supported on left and right door frames W via hinges H so that they can be opened and closed. The child door D2 is normally held in a closed position by a drop metal fitting, and the child door D in this closed position is normally held.
The main door D1 is held in the closed position by operating the lock J with respect to the main door 2, and the main door D is controlled by releasing the lock J.
1 can be opened.

In this case, it is necessary to secure a certain gap between the ground and the lower end surfaces of the doors D1 and D2 because the doors D1 and D2 are pivotally supported so that they can be opened and closed. For this reason, there is a problem that the draft wind enters the house through the above-mentioned gap and the air conditioning efficiency is reduced. In response to such a problem, an airtight material is provided inside the lower end portion of the door D so as to be able to protrude and retract from the lower end surface of the door D, and when the door is closed, the airtight material projects from the lower end surface of the door D. There has been proposed a device for maintaining the airtightness of a door that seals a gap (for example, see Japanese Utility Model Registration No. 3002577).

[0004]

By the way, when the above-described door airtightness holding device is adopted as the above-mentioned double door type child door, an airtight material constituting the door airtightness holding device or a movable airtight material mounted with the airtight material is used. The main frame for accommodating the frame and the movable frame interferes with the dropping bracket. For this reason, it is necessary to remove the airtight material, the movable frame, and the main body frame over the range in which the dropping bracket is operated. As a result, the gap between the lower end surface of the door and the ground cannot be completely sealed. It was not possible to prevent infiltration.

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and has developed an airtight structure of a door which can reliably seal a gap between a lower end surface of the door and a ground even in a door provided with a drop metal fitting. To provide.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a door body pivotally supported via a hinge so as to be openable and closable, a plate having a handle which is disposed inside the side end of the door body so as to be movable up and down, and a plate having the handle. A drop-down fitting having a rod-shaped body fixed to the lower end of the door body, a main body frame buried in the lower end portion of the door main body, a movable frame housed in the main body frame so as to be able to protrude and retract and to which an airtight material is attached, and one end of the main body frame The other end is connected to an adjuster, and an airtight device having an elastic member housed in a main body frame supported by a shaft provided in a movable frame at a substantially central portion, and a plate of a drop metal fitting is raised and lowered. A deflection mechanism for converting the operation into a lateral movement of the adjuster of the airtight device, and when the door body is held in the closed position by the drop metal fitting, the adjuster is laterally moved in the direction in which the elastic member bends via the deflection mechanism. thing More, in which the movable frame to protrude beyond the lower end surface of the door body, characterized by sealing the gap between the lower end surface of the ground and the door body.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an airtight structure of a door according to the present invention.
And drop metal fittings 2 provided on the door body 1 respectively.
And the airtight device 3, and a deflection mechanism 4 that changes the direction of the operation of the dropping bracket 2 and transmits the operation to the airtight device 3.

The drop fitting 2 can be moved up and down along a vertical bar (not shown) of the door body 1 and a decorative cover 21 fixed to a lower side of the door body 1. Handle 2 protruding from formed long hole 21b
2 and a bar 25 fixed to the lower end of the plate 23 via a stay 24. The handle 22 is pushed down or lifted, and the rod 23 is moved through the plate 23 and the stay 24. 25 is moved up and down.

When the door body 1 is closed, a not-shown recess is formed in the ground facing the lower part of the rod 25, and when the handle 22 is pushed down to lower the rod 25 as described above. , The tip of which fits into the recess, so that the door body 1 can be held in the closed position.

As shown in detail in FIGS. 2 and 3, the airtight device 3 includes a main body frame 31 buried inside a lower end portion of the door main body 1 and a movable housing housed in the main body frame 31 so as to be able to protrude and retract. The frame 32 and the airtight material 3 attached to the lower part of the movable frame 32
3 and an elastic member 34 housed in the body frame 31, one end of the elastic member 34 is fixed to the body frame 31,
The other end is connected to an adjuster 35 slidably inserted into a case 42 of the deflecting mechanism 4 to be described later, and a substantially central portion of the adjuster 35 is not shown in detail.
2 are supported. Therefore, when the adjuster 35 moves toward the center of the door body 1 in the left-right direction, the elastic member 34 having one end fixed to the main body frame 31 is bent, and the movable frame 32 is pushed down by the amount of the bending. As a result, the gap between the ground and the lower end surface of the door body 1 is moved to the movable frame 3.
2 and can be closed by an airtight material 33 fixed to the movable frame 32 (see the position of the dashed line in FIG. 3).

The rod 25 of the drop fitting 2 described above is used.
In the movable frame 32 and the airtight material 33, through holes 32a and 33a through which the rod 24 can be inserted (FIG.
Reference) is formed.

On the other hand, the deflecting mechanism 4 includes a rack 41 fixed to the stay 24 of the drop fitting 2 and a stepped portion 3 formed by cutting out the main body frame 31 of the airtight device 3.
11 and a gear 43 and a cam 44 integrally fixed to a rotation shaft 421 rotatably supported by the case 42. The rack 41 is positioned so as to mesh with the gear 43. Have been. The cam 44 has a cam surface 44a whose distance from the rotation shaft 421 is gradually changed. The adjuster 35 is set so as to always contact the cam surface 44a via the elastic member 34. Have been.

Therefore, when the rack 41 descends following the lowering of the plate 23 and the stay 24, the gear 43
To rotate the rotation shaft 421 and
4 is rotated, so that the cam surface 44a is
5 is slid along the case 42 toward the center of the door body 1 in the left-right direction. As a result, the elastic member 34 connected to the adjuster 35 is bent, and as described above, the movable frame 32 to which the airtight material 33 is fixed is pushed down.

Next, the operation of the airtight structure will be described. Usually, the door body 1 is in a closed position for closing the entrance, and the closed state is dropped and held by the metal fitting 2. That is, by pushing down the handle 22, the rod-shaped body 25 is lowered via the plate 23 and the stay 24, and penetrates the movable frame 32 and the airtight material 33, and its tip is fitted into a not-shown recess. On the other hand, the rack 41 is also lowered in conjunction with the lowering of the stay 24, and meshes with the gear 43 to rotate the rotating shaft 421 and the cam 44.
As a result, the adjuster 35 in contact with the cam surface 44a of the cam 44 slides toward the center in the left-right direction of the door body 1 and deflects the elastic member 34 connected to the adjuster 35. The lower portion 32 is lowered with respect to the main body frame 31 to seal a gap between the lower end surface of the door main body 1 and the ground.

As a result, it is possible to reliably prevent the draft from entering the house through the gap between the lower end surface of the door body 1 and the ground while preventing interference with the drop fitting 2.

On the other hand, to open the door body 1, the handle 2
When the lifter 2 is lifted, the rod 25 rises via the plate 23 and the stay 24, and the fixing of the door body 1 to the closed position can be released. At this time, the rack 41 also rises in conjunction with the rise of the stay 24, and meshes with the gear 43 to rotate the rotating shaft 421 and the cam 44 in the opposite direction to that described above. The rotation of the cam 44 causes the adjuster 35 to slide along the case 42 so as to contact the cam surface 44a by the elastic force of the elastic member 34 because the distance from the center of rotation to the cam surface 44a gradually decreases. Then, the bending of the elastic member 34 is recovered by that amount. For this reason, the movable frame 3
The support shaft 2 (not shown) can be lifted by the support portion, and the movable frame 32 can be raised with respect to the main body frame 31 to open the gap between the lower end surface of the door main body 1 and the ground.
As a result, the airtight material 33 of the airtight device 3 does not come into contact with the ground, the wear of the airtight material 33 is prevented, and the door body 1 can be smoothly opened and closed.

In the above-described embodiment, the rack 41, the gear 43, and the cam 44 are used as the deflecting mechanism 4. However, an inclined surface is provided on the drop fitting 2, for example, the stay 24, and the adjuster is provided on the inclined surface. 35 may be brought into contact and slid, and the structure is not limited.

[0019]

As described above, according to the present invention, there is provided a door body pivotally supported via a hinge so as to be openable and closable, and a plate having a handle which is disposed inside the side end of the door body so as to be movable up and down. A drop fitting having a rod-like body fixed to the lower end of the plate, a main body frame buried in the lower end portion of the door main body, a movable frame housed in the main body frame so as to be able to protrude and retract and to which an airtight material is attached, and one end thereof. An airtight device having an elastic member housed in the main body frame, the other end of which is connected to the adjuster at the other end thereof, and which is supported by a shaft provided on the movable frame at a substantially central portion; A deflection mechanism that converts the lifting operation of the airtight device into a lateral movement of the adjuster of the airtight device.When the door body is held in the closed position by the drop metal fitting, the adjuster is moved in the direction in which the elastic member bends via the deflection mechanism. Move Thus, the movable frame is projected beyond the lower end surface of the door main body to seal the gap between the ground and the lower end surface of the door main body. It is possible to reliably prevent drafts from entering the house through a gap with the ground.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view partially showing an airtight structure of a door of the present invention.

FIG. 2 is a partial perspective view showing the airtight structure of FIG. 1 with a part omitted.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a perspective view showing an entrance of a house.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door main body 2 Drop metal fitting 21 Decorative cover 22 Handle 23 Plate 25 Bar-shaped body 3 Airtight device 31 Main frame 32 Movable frame 33 Airtight material 34 Elastic member 35 Adjuster 4 Deflection mechanism 41 Rack 43 Gear 44 Cam

Claims (1)

[Claims] 1. A door body pivotally supported via a hinge so as to be openable and closable, a plate having a handle disposed inside a side end of the door body so as to be movable up and down, and a rod-shaped body fixed to a lower end of the plate. And a main body frame buried at the lower end of the door main body, a movable frame housed in the main body frame so as to be able to protrude and retract and to which an airtight material is mounted, and one end of the movable frame and the other end of the main body frame. An airtight device having an elastic member accommodated in the body frame supported by a shaft provided on the movable frame at a substantially central portion while being connected, and a lifting / lowering operation of a plate of the drop metal fitting is performed by an adjuster of the airtight device. It consists of a deflection mechanism that converts to movement, and when the door body is held in the closed position by the dropping bracket, the adjuster is laterally moved in the direction in which the elastic member bends via the deflection mechanism,
An airtight structure for a door, wherein a movable frame is projected beyond a lower end surface of a door body to seal a gap between the ground and a lower end surface of the door body.