JP3259514B2 - Door closing device - 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 rotatably supported by a door frame having a lower frame, and more particularly to a door frame having a lower frame at the same level as the floor surface. The present invention relates to a door closing device used to close a gap formed between a lower edge of a door and a lower frame of a door frame.

[0002]

2. Description of the Related Art Conventional door closing devices include:
For example, there is a door closing device 101 shown in FIG. 13. The door closing device 101 is provided at a lower end edge of a door rotatably supported by a door frame having a lower frame, and is embedded in a lower frame of the door. Is slidably provided on the side of the hanging base 102a, and is pressed by the door frame when the door is closed, and
a rod 103 that moves to the b side, a leaf spring 105 that is arranged to bend downward along the housing 102 and has one end connected to the rod 103 and the other end connected to the block 104 on the door end side, An elevating body 106 disposed in the hollow portion in the longitudinal direction and connected to a substantially central part of the leaf spring 105 so as to be able to move in a vertical direction in accordance with the bending and extension of the leaf spring 105, and held by the elevating body 106 A gap closing tight material 107 is provided which protrudes and retracts from the housing 102 as the lever is raised and lowered.

In the closing device 101, when the door is closed, the rod 103 is pressed by the door frame and moves to the door tip 102b side, and the bent leaf spring 105 is further bent to lower the lifting / lowering body 106. The gap closing tight material 107 protrudes downward from the housing 102 to close the gap formed between the lower edge of the door and the lower frame.

[0004]

However, in the conventional door closing device 101, since the door closing device 101 is provided at the lower edge of the door, the door closing device 101 does not trip a person or obstruct the passage of a wheelchair. The gap formed between the lower edge and the lower frame of the door frame can be closed, but a gap may be formed between both vertical frames of the door frame and both ends of the gap closing tight material 107. However, there is a problem that it is difficult to say that the airtightness and the watertightness are perfect, and it has been a conventional problem to solve this problem.

[0005]

SUMMARY OF THE INVENTION The present invention is capable of closing the gap formed between the lower edge of the door and the lower frame without obstructing the passage of a person or a wheelchair. It is an object of the present invention to provide a door closing device capable of making airtightness and watertightness at a lower end portion of a frame almost perfect.

[0006]

According to the first aspect of the present invention, a door frame provided with a door-side vertical frame tight material, a hanging-side vertical frame tight material, and a lower frame is rotated via a pivot hinge. Along the lower edge of the movably supported door,
In a door closing device having a gap closing tight material which descends and rises as the door is closed and opened, a hanging base end of the gap closing tight material is pressed against a pivot pedestal provided in a lower frame of a door frame. The structure of the door closing device is a means for solving the conventional problems.

[0007] The invention according to claim 2 of the present invention provides:
It is provided along the lower edge of a door rotatably supported by a door frame provided with a door-end side vertical frame tight material, a hanging side vertical frame tight material, and a lower frame. In a door closing device provided with a closing / tightening gap closing material that descends and rises, a hanging side vertical frame of a door frame is provided with a convex portion that comes into pressure contact with a hanging side end of the gap closing tight material when the door is closed. The structure of the door closing device is a means for solving the conventional problem.

[0008] In one embodiment, a close contact portion of a vertical frame tight material that is in close contact with the door frame side vertical frame tight material of the door frame when the door is closed is provided at the door end side end of the gap closing tight material. And

Further, the invention according to claim 4 of the present invention is directed to a lower end of a door rotatably supported by a door frame having a door-end side vertical frame tight material, a hanging side vertical frame tight material, and a lower frame. In a door closing device provided with a gap closing tight material which is provided along the edge and descends and rises with closing and opening of the door, the door end side end of the gap closing tight material has a door closing side when closing the door. The door frame is provided with a vertical frame tight material close portion that extends to the door tip side vertical frame tight material side and has an end surface closely contacting the door tip side vertical frame tight material. This is a means for solving the conventional problem described above.

[0010] In this case, the invention according to claim 5 of the present invention is an embodiment adopted as necessary according to the invention according to claim 1 or 2, wherein the door-end side end of the gap closing tight material is provided. The present invention has a configuration in which a vertical frame tight material closely contacting portion is provided which extends to the door frame side tight material side of the door frame when the door is closed and has an end surface closely contacted with the door frame vertical frame tight material. The invention according to claim 6 is a particularly preferred embodiment of the invention according to claim 4 or claim 5, wherein the door-side vertical frame tight material is formed from the door-side vertical frame of the door frame to the hanging-side vertical frame. The tight material holding portion extending to the frame side is held so as to be in close contact with the door finding surface, and the gap closing tight material covers the door end side end face of this gap closing tight material, and is attached to the door finding surface when the door is closed. The vertical side of the door that can be closely contacted It has a configuration in which a vertical frame tight material closely portion for close contact with the tight material.

[0014]

In the door closing device according to the first aspect of the present invention, when the door is closed, the pedestal pressure contact portion of the gap closing tight material which descends and closes the gap below the door is pressed against the pivot pedestal. Therefore, no gap is formed at the lower end of the vertical frame on the hanging side of the door frame.

Further, in the door closing device according to the second aspect of the present invention, when the door is closed, the hanging end of the gap closing tight material which descends and closes the gap below the door is closed. Since it is in pressure contact with the convex portion of the hanging side vertical frame, no gap is formed at the lower end of the hanging side vertical frame of the door frame.

In the door closing device according to the third aspect of the present invention, when the door is closed, the close portion of the vertical frame tight material is in close contact with the door frame side vertical frame tight material of the door frame. No gap is formed not only at the lower end of the vertical frame but also at the lower end of the vertical frame on the doorside side.

Further, in the door closing device according to the fourth aspect of the present invention, when the door is closed, no gap is formed at the lower end of the door frame on the door-end side vertical frame. Since the end face of the vertical frame tight material close part of the tight material is in close contact with the door frame side vertical frame tight material of the door frame,
The closeness of the vertical frame tight material close portion to the door frame side vertical frame tight material is improved, and in the door closing device according to claim 5 of the present invention, when the door is closed, both door frames of the door frame are closed. There will be no gap at each lower end,
In particular, the tightness of the tight portion of the vertical frame tight material to the door-side vertical frame tight material is excellent.

According to a sixth aspect of the present invention, there is provided a door closing device according to a sixth aspect of the present invention, in which a vertical frame tight material is provided on a movement path of an end surface of a vertical frame tight material close portion so as to be able to come into close contact with a door finding surface when the door is closed. Since the material will be located, the tightness of the vertical frame tight material close part to the door side vertical frame tight material will be excellent, and since the door end side end surface of the gap closing tight material will not be exposed, The design of the lower end of the door at the door tip side is also improved.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.

1 to 10 show an embodiment of a door closing device according to the present invention.

As shown in FIG. 8 to FIG.
Are the vertical frame 2, the vertical frame 3, the vertical frame 3, the upper frame 4, and the floor F
The door frame 1 is rotatably supported via a pivot hinge 6 on a door frame 1 having a lower frame 5 at the same level as that of the door frame. A door end side vertical frame tight material 2A, a hanging side vertical frame tight material 3A, and an upper frame tight material 4A are provided in each longitudinal direction.

As shown in FIG. 2, the door closing device 20 for closing the gap between the door 10 and the lower frame 5 includes a device main body 21 disposed longitudinally in a hollow portion of the lower frame 11 of the door 10. ,
A rod 22 provided on the hanging side of the apparatus main body 21 and a leaf spring 23 arranged to be bent downward along the apparatus main body 21
And an elevating body 24 arranged along the apparatus main body 21 and capable of moving in parallel in the vertical direction, and a gap closing tight member 25 held by the elevating body 24.

As shown in FIG. 4, the rod 22 is slidably fitted in a rod sliding groove 21a provided in a hollow portion of the apparatus main body 21, and has a U-shaped end on the hanging side. 22a is
When the door 10 is opened, the door 10 is engaged with a pivot 8 on a pivot pedestal 7 constituting the pivot hinge 6. The tip of the U-shaped end 22a is the door 1
At the time of the closing of 0, the rod drive pin 9 provided on the pivot pedestal 7 is brought into contact with the rod drive pin 9, whereby the rod 22 is pressed by the rod drive pin 9, separates from the pivot 8, and separates. It moves to the door tip side of the door 10 by the distance D.

The leaf spring 23 has one end connected to the door-side end 22b of the rod 22 and the other end connected to the door-side of the door 10. The amount of deflection of the leaf spring 23 is adjusted. The screw 23a (shown only in FIG. 7) provided on the front end side of the door 10 is used. By connecting a substantially central portion of the leaf spring 23 to the lifting / lowering body 24, the lifting / lowering body 24 is vertically moved in parallel with the bending and extension of the leaf spring 23.

As shown in FIGS. 1, 3, 6 and 7, the gap closing tight material 25 is pressed against the outer peripheral surface (gap closing tight material pressing surface) 7a of the pivot pedestal 7 at the hanging side end. Pedestal pressure contact portion 25a in the shape of an arc
At the door end side end, there is a plate-shaped vertical frame tight material close contact portion 25b that covers the door end side end surface of the gap closing tight material 25. In this embodiment, the door-side vertical frame tight material 2A is
A tight material holding portion 2a extending from the door end side vertical frame 2 of the door frame 1 to the hanging side vertical frame 3 side is held so as to be in close contact with the finding surface of the door 10, and the vertical frame tight material close contact portion 25b is , Door 1
At the time of the closing of 0, it extends to the door-side vertical frame tight material 2A side and its end face 25d is brought into close contact with the door contact surface of the door-side vertical frame tight material 2A.

In this case, as shown in FIG.
The lower frame 5 is covered with a lower frame cover 26, and the outer peripheral surface 7a of the pivot pedestal 7 is smoothly connected to the lower frame cover 26, and a waterproof wall 27 is provided on the lower frame cover 26. The suspension side vertical frame tight material 3 </ b> A of the door frame 1 whose end surface is in contact with the lower frame cover 26 and the pivot pedestal 7 are made continuous. A raised portion 28 is provided on the door end side of the lower frame cover 26, and the lower end surface of the door frame side vertical frame tight material 2A of the door frame 1 is connected to the raised portion 28, that is, the raised portion 28 is The door contact surface of the door-end-side vertical frame tight member 2 </ b> A is smoothly connected to the lower frame cover 26 through the door. The raised portion 28 and the plate-shaped vertical frame tight material close portion 25b are provided with a door 10
A ridge-side inclined surface 28a and a vertical-frame tight-material-close-portion-side inclined surface 25c that are in close contact with each other at the time of closing are provided.

In the door closing device 20, when closing the door 10, the U-shaped end 22a of the rod 22 is used.
Is in contact with the rod driving pin 9 on the pivot pedestal 7, the rod 22 is pressed by the rod driving pin 9 and is separated from the pivot 8, and moves to the door end side of the door 10 by the separated distance D. I do.

During this time, the leaf spring 23 is further bent as the rod 22 moves to the door tip side, so that the elevating body 24
Is lowered from the position indicated by the imaginary line in FIG. 2B to the position indicated by the solid line, so that the gap closing tight material 25 is lowered and formed between the door 10 and the lower frame 5 of the door frame 1. The gap will be closed.

At this time, the lowered gap closing tight material 25
Of the pivot pedestal 7, the vertical frame tight material closely contacting portion 25b closely contacts the door-side vertical frame tight material 2A of the door frame 1, and the hanging side vertical frame. Since the tight material 3A and the pivot pedestal 7 are continuous via the waterproof wall 27, no gap is formed at each lower end of both the vertical frames 2 and 3 of the door frame 1;
The airtightness and the watertightness between the door frame 1 and the door 10 are all around by the door-end side vertical frame tight material 2A, the upper frame tight material 4A, the suspension side vertical frame tight material 3A and the gap closing tight material 25. Will be secured.

The outer peripheral surface 7a of the pivot pedestal 7 and the lower frame cover 26 are smoothly continuous with each other.
8, the door contact surface of the door-end side vertical frame tight material 2A smoothly continues to the lower frame cover 26, so that the pressure contact of the pedestal pressure contact portion 25a and the vertical frame tight material close contact portion 25b are tight. At this time, the outer peripheral surface 7a of the pivot pedestal 7 and the door contact surface of the door-side vertical frame tight material 2A,
In addition, since the waterproof wall 27 is substantially integrated with the lower frame cover 26 via the lower frame cover 26, the airtightness and the watertightness of the lower ends of both the vertical frames 2 and 3 of the door frame 1 are further improved.

Further, the door-side vertical frame tight material 2A held by the tight-material holding portion 2a of the door-side vertical frame 2 is located on the movement path of the end surface 25d in the vertical frame tight material close portion 25b. Therefore, the vertical frame tight material close contact portion 25b is excellent in close contact with the doorside side vertical frame tight material 2A, and
Since the vertical frame tight material closely contacting portion 25b is formed in a plate shape, the door end side end surface of the gap closing tight material 25 is not exposed, so that the design of the door end lower end portion of the door 10 is improved.

Furthermore, since the lower end of the door-side vertical frame tight member 2A of the door frame 1 is located on the raised portion 28, the lower end of the door-side vertical frame tight member 2A is submerged. In addition, when the door is closed, the vertical frame tight material close portion 25b of the vertical frame tight material close portion 25b and the raised portion side inclined surface 28a of the raised portion 28 come into close contact with each other. The vertical frame tight material contact portion 25b smoothly comes into close contact with the door-side vertical frame tight material 2A without receiving a large resistance from the raised portion 28.

FIGS. 11 and 12 show another embodiment of the present invention, in which parts having the same configuration as the previous embodiment are denoted by the same reference numerals.

As shown in FIG. 11, this door closing device 40 is a door rotatably supported via a hinge (not shown) on a door frame 1 having a lower frame 5 at the same level as the floor surface F. Is used as in the previous example.
The apparatus main body 21 includes a rod 22, a leaf spring 23, a lifting / lowering body 24, and a gap closing tight member 45.

In this case, U on the suspension side of the rod 22
When the door is closed, the character-shaped end 22a is in contact with the hanging-side vertical frame 3 side, and the rod 22 is pressed by the hanging-side vertical frame 3 side to close the door-end side of the door. It is intended to move to.

As shown in FIG. 12, in this embodiment, the lower frame 5 of the door frame 1 is covered with a lower frame cover 46, and the lower frame cover 46 has a tight space closed when the door is closed. Convex part 46 which is in pressure contact with the hanging end 45a of the material 45
a and a support wall 46b for supporting the convex portion 46a are integrally provided. When the door is closed, the U-shaped end 22a of the rod 22 comes into contact with the press contact surface 46c of the convex portion 46a. I have.

The pressing surface 46c of the projection 46a is smoothly connected to the lower frame cover 46.
The protrusion 46a and the suspension-side vertical frame tight member 3A whose lower end surface is in contact with the lower frame cover 46 are connected to each other via a waterproof wall 47 provided over the lower frame cover 46.

Further, at the door end side of the gap closing tight material 45, the vertical frame tight material closely contacting portion 45b is provided in the same manner as in the previous embodiment.
The vertical frame tight material 2A on the door end side of the door frame 1 to which the vertical frame tight material close portion 45b is in close contact when the door is closed.
Is smoothly connected to the lower frame cover 46 via the raised portion 28 provided on the door end side of the lower frame cover 46, and the other configuration is the same as that of the previous embodiment.

In this door closing device 40, when the door is closed, the hanging end 45a of the gap closing tight material 45 closing the gap presses against the convex portion 46a, and the vertical frame tight material close contact portion 45b contacts the convex portion 46a. Since the door frame 1 is in close contact with the vertical frame tight material 2A, there is no gap at the lower ends of the vertical frames 2 and 3 of the door frame 1, and the vertical frame frame 2A and the upper frame tight material 4A are not formed. The airtightness and watertightness between the door frame 1 and the door are ensured by the hanging side vertical frame tight material 3A and the gap closing tight material 45.

The press contact surface 46c of the convex portion 46a and the lower frame cover 26 are smoothly continuous with each other.
, The door contact surface of the door-end side vertical frame tight material 2A smoothly continues to the lower frame cover 46, so that the pressure contact property of the hanging side end 45a of the gap closing tight material 45 and the vertical frame tight material Since the closeness of the close contact portion 45b is enhanced, and in addition, since the convex portion 46a and the suspension side vertical frame tight material 3A are continuous via the waterproof wall 47, both the vertical frames 2, 3 of the door frame 1 are connected. The air-tightness and water-tightness of each lower end portion are further enhanced, and the press-contact surface 46c of the convex portion 46a, the door contact surface of the door-side vertical frame tight member 2A, and the waterproof wall 47 are provided with a lower frame cover. Since the lower end portion of the door frame 1 is substantially integrated through the door 46, the airtightness and the watertightness of the lower end portion of the door frame 1 are further improved.

[0044]

As described above, in the door closing device according to the first aspect of the present invention, when the door is closed, the pedestal press-contacts the gap closing tight material which is lowered to close the gap below the door. Since the portion is in pressure contact with the pivot pedestal, it is possible to prevent a gap from being formed at the lower end of the hanging side vertical frame of the door frame. In the door closing device according to claim 2 of the present invention, the door closing At the time of closing, the hanging side end of the gap closing tight material that has closed the gap presses against the protrusion of the hanging side vertical frame of the door frame, so that a gap occurs at the lower end of the hanging side vertical frame of the door frame. This is a very excellent effect that can be prevented.

In the door closing device according to the third aspect of the present invention, when the door is closed, the close portion of the vertical frame tight material is in close contact with the door frame side vertical frame tight material of the door frame. Since it is possible not only to prevent a gap from being formed at the lower end of the side vertical frame, but also to prevent a gap from being generated at the lower end of the doorside vertical frame, the airtightness between the door frame and the door is reduced. A very excellent effect that the property can be ensured is brought about.

Further, in the door closing device according to the fourth aspect of the present invention, when the door is closed, the closeness of the vertical frame tight material close portion to the door-side vertical frame tight material is increased, and then the door frame is closed. It is possible to reliably prevent the formation of a gap at the lower end of the vertical frame on the door side of the door.
In the door closing device according to the above, when the door is closed,
Similarly, after improving the tightness of the vertical frame tight material close part to the door side vertical frame tight material, it is very excellent that gaps can be reliably prevented from occurring at each lower end of both vertical frames of the door frame. The effect is brought about.

In this case, in the door closing device according to the sixth aspect of the present invention, the door end side which can be brought into close contact with the finding surface of the door when the door is closed, on the movement path of the end face of the tight portion of the vertical frame tight material. Since the vertical frame tight material is located, the tightness of the vertical frame tight material close portion to the door frame side vertical frame tight material can be made more excellent, and the door end side end surface of the gap closed tight material. Can be concealed, which brings about a very excellent effect of improving the design of the door at the lower end on the door end side.

[Brief description of the drawings]

FIG. 1 is an explanatory plan view of a lower end portion of a door showing an embodiment of a door closing device according to the present invention.

2A is an explanatory front view of the door closing device shown in FIG. 1. FIG. (B) It is sectional drawing in the intermediate part of FIG.2 (a).

3 (a) is a partial perspective explanatory view of a lower frame cover in the door closing device shown in FIG. 1. FIG. (B) It is a fragmentary perspective view showing in detail the hanging side of the door closing device in FIG.

4 (a) is an explanatory view of the operation of a rod in the door closing device shown in FIG. 1. FIG. (B) It is a perspective explanatory view showing a rod in detail.

FIG. 5 is a partial perspective explanatory view of a lower end on a hanging side of the door equipped with the door closing device shown in FIG. 1;

6 is a partial perspective explanatory view of a door tip portion of the door closing device shown in FIG. 1 as viewed from a hanging side;

FIG. 7 is an explanatory partial perspective view of a door top portion of the door closing device shown in FIG. 1 as viewed from a door frame.

8 is an explanatory front view of a door to which the door closing device shown in FIG. 1 is attached.

FIG. 9 is an explanatory horizontal sectional view of the door shown in FIG. 8;

FIG. 10 is an explanatory vertical sectional view of the door shown in FIG. 8;

FIG. 11 is an explanatory front view showing another embodiment of the door closing device according to the present invention.

12 (a) is a partial perspective explanatory view of a lower frame cover in the door closing device shown in FIG. 11. FIG. FIG. 12 (b) is a partial perspective explanatory view showing the hanging side of the door closing device in FIG. 11 in detail.

FIG. 13 is a perspective explanatory view showing a conventional door closing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door frame 2 Door end side vertical frame 2A Door end side vertical frame tight material 2a Tight material holding part 3A Suspension side vertical frame tight material 5 Lower frame 6 Pivot hinge 7 Pivot pedestal 7a Outer peripheral surface (gap closing tight material pressure contact surface) DESCRIPTION OF SYMBOLS 10 Door 20,40 Door closing device 25,45 Clearance closing tight material 25a Pedestal pressure contact portion 25b, 45b Vertical frame tight material tight contact portion 25c Vertical frame tight material close contact portion side inclined surface 25d End surface 27,47 Waterproof wall 28 Raised portion 28a Raised part side inclined surface 45a Suspension side end part 46a Convex part 46c Contact surface (gap closed tight material pressure contact surface)

Claims (6)

(57) [Claims] 1. A door frame provided with a door-side vertical frame tight material, a hanging-side vertical frame tight material, and a lower frame along a lower edge of a door rotatably supported via a pivot hinge. In a door closing device provided with a gap closing tight material which descends and rises as the door is closed and opened, a pivot base provided on a lower frame of a door frame is provided at a hanging side end of the gap closing tight material. A door closing device characterized by comprising a pedestal pressure contact portion for pressure contact with the door. 2. A door block provided along a lower edge of a door rotatably supported by a door frame having a door-end side vertical frame tight material, a hanging side vertical frame tight material, and a lower frame. -In a door closing device having a gap closing tight material that descends and rises with opening, the hanging side vertical frame of the door frame is pressed against the hanging side end of the gap closing tight material when the door is closed. A door closing device provided with a convex portion. 3. A door frame-side tight member which is provided with a vertical frame tight material closely contacting with a door frame side vertical frame tight material of the door frame when the door is closed, at a door end side end of the gap closing tight material. A door closing device according to claim 1. 4. A door closure provided along a lower end edge of a door rotatably supported by a door frame having a door-end side vertical frame tight material, a hanging side vertical frame tight material, and a lower frame. In a door closing device provided with a gap closing tight material that descends and rises with opening, a door closing side of the gap closing tight material has a door end side door frame side vertical frame tight material side when the door is closed. A vertical frame tight member closely contacting with the door-side vertical frame tight material at an end surface thereof. 5. A vertical end extending to the door-end side end of the gap-closing tight material, extending to the door-end-side vertical frame tight material side of the door frame when the door is closed, and having an end surface closely contacting the door-end-side vertical frame tight material. 4. The door closing device according to claim 1, further comprising a frame tight material close contact portion. 6. The door-side vertical frame tight material is held by a tight material holding portion extending from the door-side vertical frame of the door frame to the hanging side vertical frame so as to be able to come into close contact with the door finding surface. The closing tight material covers the door end side end face of the gap closing tight material and extends to the door side vertical frame tight material side which can be brought into close contact with the door finding surface when the door is closed, and the end face is this door side vertical The door closing device according to claim 4 or 5, further comprising a vertical frame tight member closely contacting with the frame tight member.