JP7537914B2 - Door device - Google Patents

Description

The present invention relates to a door device that opens and closes by rotating at least one of two doors arranged side by side, such as a double door or a parent-child door.

Conventionally, this type of invention has involved a parent-child door that is fully closed by opposing the door edge of a parent door (door body) that is closed later to the door edge of a child door that is closed first, within a rectangular frame member having upper and lower horizontal frame members, as described in Patent Document 1, for example.
In this conventional technology, a joint edge with elastic airtight material fitted in the vertical direction is integrally formed on the closing side of the door edge of the main door, and when the door is fully closed, the joint edge is overlapped on the door edge of the child door and the elastic airtight material is tightly pressed against it, thereby maintaining the closure between the main door and the child door.

Japanese Utility Model Application Publication No. 6-6685

In the above-mentioned conventional parent-child door, a gap is provided between the joint edge that is integral with the child door and the horizontal frame member above or below it so as not to impede the rotation of the child door.
As a result, when the doors are fully closed, an air passage is formed through the gap, which may impair the sealing properties between the two doors (more specifically, airtightness, soundproofing, light blocking, shielding, watertightness, etc.).

In view of the above problems, the present invention has the following configuration.
In a door device including a first door and a second door aligned in a width direction and a frame surrounding an opening opened and closed by the first door and the second door, the first door has a first door body that covers one half of the opening when closed and a receiving portion that protrudes from a door edge of the first door body and extends in the vertical direction, the second door has a second door body that covers the other half of the opening when closed and has a door edge that overlaps with the receiving portion, and the frame is adjacent to or in contact with the first door body and the second door body when closed in the closing direction. a horizontal frame member that contacts the first door body and the second door body when the door is closed, and an end airtight material is provided on at least one end side of the receiving portion, which contacts the first door body and the second door body across and also contacts the horizontal frame member when the door is closed, and the horizontal frame member is provided with a protrusion portion that spans the first door body and the second door body when the door is fully closed and is close to the closed side surfaces of both door bodies , and the end airtight material is provided with an inclined surface portion that is concavely curved and inclined, and an inclined intermediate portion of the inclined surface portion is pressed against the protrusion portion when the door is closed .

The present invention is configured as described above, which allows for improved closure.

1 is a front view showing an example of a door device according to the present invention. FIG. 2 is a cross-sectional view taken along line (II)-(II) in FIG. FIG. 2 is a cross-sectional view taken along line (III)-(III) in FIG. 1 is a perspective view of a main part of a door device according to the present invention, viewed from the indoor side. 1 is an exploded perspective view of a main part of a door device according to the present invention, viewed from the indoor side.

This embodiment discloses the following features.
A first feature is a door device including a first door and a second door aligned in the width direction and a frame body surrounding an opening that is opened and closed by the first door and the second door, wherein the first door has a first door body that covers one half of the opening when closed and a receiving portion that protrudes from a door tip of the first door body and extends in the vertical direction, the second door has a second door body that covers the other half of the opening when closed and overlaps the door tip of the receiving portion, the frame body has a horizontal frame member that is close to or in contact with the first door body and the second door body from the closing direction side when closed, and an end airtight material is provided on at least one end side of the receiving portion that is in contact with the first door body and the second door body across and also in contact with the horizontal frame member when closed (see FIGS. 1 to 5).

The second feature is that the end airtight material is made of an elastic material, and when closed, it is sandwiched between the first door body, the second door body and the horizontal frame member and elastically deforms (see Figures 2 and 4).

The third feature is that the horizontal frame member is provided with a protruding piece adjacent to the closed side surface of both the first door body and the second door body when fully closed, spanning both the first door body and the second door body, and the end airtight material is provided with an inclined surface portion so as to be pressed against the protruding piece when closed (see Figures 2 and 4).

The fourth feature is that the horizontal frame member is provided with a frame-side airtight member that continues in the width direction so as to contact the first door body and the second door body when closed and also contact the end airtight material (see Figure 2).

<Specific embodiment>
Next, specific embodiments having the above-mentioned features will be described in detail with reference to the drawings.
In the following description, the "width direction" refers to the width direction when the first door 10 and the second door 20, or the frame body 30, are viewed from the front (the left-right direction in FIG. 1).

FIG. 1 shows an example of a door device according to the present invention.
This door device A comprises a first door 10 and a second door 20 aligned in the width direction, and a frame body 30 that surrounds from above, below, left and right an opening that is opened and closed by the first door 10 and the second door 20, forming a parent-child door in which the first door 10, which is a child door, is locked in a fully closed position and the second door 20, which is a parent door, is rotated to open and close.

The first door 10 is integrally formed with a first door body 11 that covers one half of the opening in the frame body 30 when closed (the left half in the illustrated example), and a receiving portion 12 that protrudes from the door end of the first door body 11 and extends in the vertical direction (see Figures 3 to 5). In the illustrated example, the first door 10 is composed of multiple aggregates 1 on the top, bottom, left and right, and exterior panels 2 that cover these aggregates 1.

The first door body 11 is formed in a generally long rectangular plate shape with a given thickness, and the door end side (the left end side in the illustrated example) is rotatably supported by a pivot support member (such as a pivot hinge, not shown) on the frame body 30, which is an immovable part, and the door front side is releasably engaged with an immovable part such as the floor surface by an engagement member (such as a French drop, not shown).

The receiving portion 12 protrudes from the first door body 11 toward the door end and also toward the inside of the room, and is provided in a long shape extending in the vertical direction, and is sometimes referred to as a meeting point.
The receiving portion 12 has a smaller vertical dimension than the first door body 11, and the upper end of the receiving portion 12 is located below the upper end of the first door body 11 and below a protruding piece 31a1 of a horizontal frame member 31, which will be described later. The lower end of the receiving portion 12 is located above the lower end of the first door body 11 and above a protruding piece 32a1 of a horizontal frame member 32, which will be described later. In other words, the receiving portion 12 is located between the upper and lower protruding pieces 31a1, 32a1 in the fully closed state.

As shown in FIG. 3, the receiving part 12 is composed of a concave part 12a with a cross section that faces the outside, and a receiving part airtight material 12b that is fitted into the concave part 12a.

The recessed portion 12a is formed by bending a portion of the exterior panel 2 into a continuous vertical groove shape, and as shown in FIG. 3, it protrudes from the door end of the first door body 11 toward the indoor side and also toward the second door 20. As another example of this recessed portion 12a, a sheet metal material separate from the exterior panel 2 may be bent and fixed to the first door body 11.

The receiving airtight material 12b is a hollow, elongated member made of an elastic material (such as rubber or elastomer resin) and is fitted into the recessed portion 12a over substantially its entire length in the vertical direction.
The receiving airtight material 12b protrudes from the recessed portion 12a to the outdoor side, and its tip portion is pressed against the indoor surface and corner portion of the second door body 21 when fully closed (see FIG. 3). That is, the receiving airtight material 12b contacts both the first door 10 and the second door 20 when fully closed.

An end airtight material 13 is provided on the upper end side of the receiving portion 12 of the above configuration via a connecting member 14. When fully closed, this end airtight material 13 contacts the first door body 11 and the second door body 21 across the first door body 11 and the second door body 21, and also contacts the horizontal frame member 31 of the frame body 30 (see Figure 4).

Similarly, an end airtight material 13' is provided at the lower end of the receiving portion 12 via a connecting member 14' so that when fully closed, it contacts the first door body 11 and the second door body 21 across and also contacts the lower horizontal frame member 32 of the frame body 30. The lower end airtight material 13' and connecting member 14' are members of the same configuration as the upper end airtight material 13 and end airtight material 13', but are used upside down (see Figure 2).

The end airtight material 13 is formed from an elastic material such as rubber or elastomer resin, and when fully closed, is sandwiched between the first door body 11, the second door body 21 and the protruding piece portion 31a1 of the horizontal frame member 31 and elastically deforms.
The end airtight material 13 has a main body portion 13a and a connecting portion 13b which protrudes from the main body portion 13a in a generally arrow-shaped manner in a side view and is connected to a connecting member 14 (see FIG. 5).
The main body portion 13a has a flat pressure-contact surface portion 13a1 that spans the first door main body 11 and the second door main body 21 and is pressed against these surfaces, two side surface portions 13a2, 13a2 that are approximately triangular in side view and extend toward the indoor side from both the left and right ends of the pressure-contact surface portion 13a1, and an inclined surface portion 13a3 connected to both hypotenuse portions of the two side surface portions 13a2, 13a2.

The inclined surface portion 13a3 is a concave curved inclined surface that gradually approaches the closing direction (towards the interior) as it goes downward, and the mid-way point of the inclination is pressed against the tip of the protruding piece portion 31a1 (see Figure 4).

The connecting member 14 is made of a hard material such as metal or synthetic resin and is formed in a roughly plate-like shape covering the longitudinal end of the recessed portion 12a, and is connected and fixed to the recessed portion 12a by a connecting means such as fitting, welding, adhesive, or screwing.
A fitting hole 14a is provided on the central side of this connecting member 14, into which the connecting portion 13b of the end airtight material 13 is inserted and fitted.

The second door 20 is formed in a generally rectangular plate shape with a width greater than that of the first door 10, and is integral with a second door body 21 that covers the other half of the opening in the frame body 30 when closed (the right half in the illustrated example), and a cover portion 22 that protrudes from the door end of the second door body 21 and extends in the vertical direction. In the illustrated example, the second door 20 is composed of multiple frameworks 3 on the top, bottom, left, and right, and an exterior plate 4 that covers these frameworks 3 (see Figures 3 to 5).

The second door body 21 is formed in a generally rectangular plate shape with a given thickness, and the end of the door (the right end in the illustrated example) is rotatably supported by the frame body 30, which is a stationary part, via a pivot support member 5 (a hinge in the illustrated example), and the front end faces the first door body 11 when fully closed and is overlapped with the receiving part 12.

The covering portion 22 is provided in the shape of a long plate extending in the vertical direction, protruding from the second door body 21 toward the door end direction and also protruding toward the outside. When the second door body 21 is fully closed, the covering portion 22 covers the gap between the door end portion of the first door body 11 and the door end portion of the second door body 21 from the front side (see FIG. 3).
In the illustrated example, this covering portion 22 is a plate-shaped member separate from the exterior panel 4 that is overlapped and connected and fixed to the second door body 21, but as another example, it may be a portion of the exterior panel 4 that has been bent.

The frame body 30 is configured in a substantially rectangular frame shape from upper and lower horizontal frame members 31, 32 and vertical frame members 33, 34 connected between the left and right end sides of these horizontal frame members 31, 32 (see Figure 1).

The horizontal frame member 31 has a vertical cross-sectional shape having a downward convex portion 31a on the lower half side (see FIG. 2), and is continuous and elongated in the horizontal width direction.
The convex portion 31a of the horizontal frame member 31 is provided with a protruding piece portion 31a1 that is pressed against the end airtight material 13, and an airtight material fitting portion 31b.

The protruding piece 31a1 is a generally flat plate-shaped protruding piece that protrudes from the convex portion 31a toward the outdoor side and continues in the lateral width direction.
The tip side of this protrusion portion 31a1 spans the first door body 11 and the second door body 21 in the fully closed position, and is close to the closed side surfaces of both door bodies 11, 21, and is pressed against the inclined surface portion 13a3 of the end airtight material 13 between the two door bodies 11, 21.

The airtight material fitting portion 31b is located above the protruding piece portion 31a1, and is formed in the shape of a groove whose concave cross section with an opening facing the outdoors continues in the width direction.
A frame-side airtight member 31c is fitted and fixed into this airtight material fitting portion 31b.

The frame side airtight member 31c is a hollow, elongated member made of an elastic material (e.g., rubber, elastomer resin, etc.), and according to the illustrated example, is a member substantially similar to the above-mentioned receiving portion airtight material 12b.
When fully closed, this frame side airtight member 31c is pressed against the inclined surface portion 13a3 of the end airtight material 13 between the two door bodies 11, 21 (see Figure 2), and the parts other than this pressed point are pressed against the first door body 11 and the second door body 21 over almost their entire length in the width direction.

The lower horizontal frame member 32 is a long member that faces the upper horizontal frame member 31 and continues in the width direction, and has a protruding piece portion 32a1 and an airtight material fitting portion 32b on the outdoor side of the convex portion 32a in a manner similar to the upper horizontal frame member 31 (see Figure 2).

The lower protrusion 32a1, similar to the upper protrusion 31a1, straddles the first door body 11 and the second door body 21 in the fully closed position, and is close to the closed side surfaces of both door bodies 11, 21, and is pressed against the inclined surface portion 13a3 of the lower end airtight material 13' between the two door bodies 11, 21.

The lower airtight material fitting portion 32b is configured upside down with respect to the upper airtight material fitting portion 31b, is located below the protruding piece portion 32a1, and has a concave cross section with an opening facing the outdoors, which is formed as a continuous concave groove in the width direction. The frame side airtight member 32c is fitted and fixed into this airtight material fitting portion 32b.

The lower frame-side airtight member 32c is a member of approximately the same configuration as the upper frame-side airtight member 31c, and when fully closed, it is pressed against the inclined surface portion 13a3 of the lower end airtight material 13' between the two door bodies 11, 21 (see Figure 2), and the parts other than this pressed contact point are pressed against the first door body 11 and the second door body 21 over approximately their entire length in the width direction.

The left vertical frame member 33 is continuous in the vertical direction between the left end of the upper horizontal frame member 31 and the left end of the lower horizontal frame member 32. Similarly, the right vertical frame member 34 is continuous in the vertical direction between the right end of the upper horizontal frame member 31 and the right end of the lower horizontal frame member 32.

In FIG. 3, reference numeral 33a denotes an airtight material that is attached to the vertical frame member 33 and is pressed against the first door 10 to close the gap between them. Reference numeral 34a denotes an airtight material that is attached to the vertical frame member 34 and is pressed against the second door 20 to close the gap between them.

Next, the characteristic functions and effects of the door device A having the above configuration will be described in detail.
When the first door 10 and the second door 20 are in the fully closed position, the space between the first door body 11 and the second door body 21 is closed with almost no gaps by the receiving part airtight material 12b that extends in the vertical direction, the end airtight material 13 above this receiving part airtight material 12b, and the end airtight material 13' below the receiving part airtight material 12b, etc.

In more detail, as shown in Figure 3, the portion having the receiving airtight material 12b is pressed against both the first door body 11 and the second door body 21, thereby sealing the gap between these two door bodies 11, 21.

As shown in FIG. 4, in the portion above the receiving airtight material 12b, the pressure-contact surface portion 13a1 of the end airtight material 13 is pressed against both the first door body 11 and the second door body 21, and the inclined surface portion 13a3 of the end airtight material 13 is pressed against the protruding piece portion 31a1.

Furthermore, the frame side airtight member 31c is pressed against the first door body 11 and the second door body 21 in the width direction, and is also pressed against the inclined surface portion 13a3 of the end airtight material 13 between the first door body 11 and the second door body 21 (Figure 2).

Below the receiving airtight material 12b, the lower end airtight material 13', the protruding piece 32a1, the frame side airtight member 32c, etc., have substantially the same effect as above (see Figure 2).

Therefore, with the above door device A, gaps that connect from the outside to the inside are prevented from occurring between the three components of the first door 10, the second door 20, and the upper horizontal frame member 31, and between the three components of the first door 10, the second door 20, and the lower horizontal frame member 32, improving the ability to close.

In other words, if the end airtight material 13 were omitted from the above configuration, an air passage connecting the outdoor side and the indoor side would be formed by the gap between the covering portion 22 and the surface of the first door body 11 (see Figure 2), the gap between the door edge surface of the first door body 11 and the door edge surface of the second door body 21 (see Figure 2), and the gap between the upper end of the receiving portion 12 and the lower end surface of the convex portion 31a of the horizontal frame member 31.
However, according to the door device A of the present invention, the gap between the upper end of the receiving portion 12 and the lower end surface of the convex portion 31a of the horizontal frame member 31 is blocked by the end airtight material 13, thereby preventing the formation of the air passage.

<Modification>
In the above embodiment, the end airtight materials 13, 13' are connected to the receiving part 12 via the connecting members 14, 14', but as another example, it is possible to omit the connecting members 14, 14' and connect the end airtight materials 13, 13' directly to the receiving part 12. In this case, the connecting means may be, for example, fitting or adhesion.

In the above embodiment, as a preferred example, end airtight materials 13, 13', etc. of the same shape are provided upside down on the upper and lower ends, but as another example, it is also possible for the end airtight material 13 on the upper end side and the end airtight material 13' on the lower end side to have different shapes.

In addition, in the above embodiment, the first door 10 and the second door 20 form a parent-child door, but the door device A can also form a double-leaf door other than a parent-child door.

Furthermore, the present invention is not limited to the above-mentioned embodiments, and can be modified as appropriate without departing from the spirit and scope of the present invention.

10: First door 11: First door body 12: Receiving portion 12b: Receiving portion airtight material 13, 13': End airtight material 13a3: Inclined surface portion 20: Second door 21: Second door body 30: Frame body 31, 32: Horizontal frame member 31a1, 32a1: Projecting piece portion 31c, 32c: Frame side airtight member A: Door device

Claims (3)

A door device including a first door and a second door aligned in a width direction and a frame surrounding an opening that is opened and closed by the first door and the second door,
The first door has a first door main body that covers one half of the opening when closed, and a receiving portion that protrudes from a door tip portion of the first door main body and extends in the vertical direction,
The second door has a second door body that covers the other half side of the opening when closed and overlaps the door tip portion with the receiving portion,
The frame body has a horizontal frame member that is adjacent to or in contact with the first door body and the second door body in the closing direction when the door is closed,
An end airtight material is provided on at least one end side of the receiving portion, the end airtight material being in contact with the first door body and the second door body across the first door body and also in contact with the horizontal frame member when the door is closed,
The horizontal frame member is provided with a protruding piece portion adjacent to the closed side surfaces of the first door body and the second door body when the door is fully closed,
The end airtight material is provided with an inclined surface portion that is inclined in a concave curved shape,
A door device characterized in that an inclined intermediate portion of the inclined surface portion is pressed against the protruding piece portion when the door is closed . 2. The door device according to claim 1 , wherein the end airtight material is made of an elastic material and elastically deforms when sandwiched between the first door body, the second door body and the horizontal frame member when the door is closed . 3. A door device according to claim 1, wherein the horizontal frame member is provided with a frame side airtight member that continues in the width direction so as to contact the first door body and the second door body when closed and also to contact the end airtight material .

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