JP7225144B2 - Fittings - Google Patents

Description

TECHNICAL FIELD The present invention relates to fittings having a door body provided with a smoke return piece at a meeting part.

Conventionally, fittings having a door body with a smoke return piece at the door end portion include, for example, fittings (opening device ) is known (see, for example, Patent Document 1). The fitting frame of this fitting is fixed by contacting the end portion of the door stile along the direction of projection, and the portion along the direction of projection extends to the mullion side opposite to the direction of projection. A smoke return piece (smoke return piece portion) that engages with the mullion is provided at its tip. This smoke return piece engages with the smoke return piece on the mullion side in the event of a fire, and functions not only as a smoke return piece to prevent smoke or flame from blowing out through the gap, but also to prevent the door body from falling off. ing.

JP 2015-169024 A

In the above-mentioned conventional smoke return piece, since the smoke return piece is provided at the tip of the portion that extends toward the mullion side from the portion where the meeting frame is fixed to the door end frame, the meeting frame is prevented from flaming. The problem is that when exposed to heat and heated, the gathering frame is warped and the position of the smoke return piece on the door body side changes, and there is a risk that it will not be able to engage with the smoke return piece on the mullion side. There is
The present invention has been made in view of such problems, and its object is to provide fittings in which the position of the smoke return piece is difficult to change even when exposed to flames.

In order to achieve such an object, the fitting of the present invention comprises metal aggregates provided in a meeting portion of a slidably provided door body, and a hollow structural portion fixed to the aggregates and having a hollow portion. and an end member provided with a door-side smoke-reflecting piece provided spaced apart from the hollow structure portion in the direction of projection, a metal first reinforcing member provided in the hollow portion, the door-side smoke-reflecting piece and the hollow and a second reinforcing member made of metal provided between the structure and the second reinforcing member, wherein the second reinforcing member is fixed to the aggregate by a fixing member penetrating the first reinforcing member in the prospective direction. It is characterized by
Other features of the present invention will become apparent from the description of the specification and accompanying drawings.

ADVANTAGE OF THE INVENTION According to this invention, it is possible to provide the fittings which have a smoke return piece whose position is hard to change even if it is exposed to flames.

1 is a longitudinal sectional view of a fitting according to the present invention; FIG. It is a cross-sectional view of fittings. It is a cross-sectional view which shows the gathering part of a door body.

A fitting according to an embodiment of the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 and 2, the fitting 1 of this embodiment is installed, for example, at the entrance of a building. and a slidable door body 3 suspended from 2b.

In the following description, when the fitting 1 attached to the building is viewed from the inside of the room, the up-down direction is the up-down direction, the left-right direction is the left-right direction, and the depth direction, which is the indoor-outdoor direction, is the prospective direction. Even if it is each part of the fittings 1, or even if each member that constitutes the fittings 1 is in a single state, it is attached to the building in the vertical direction, the horizontal direction, and the perspective direction. Identify and describe the direction.

The frame body 2 has an upper frame 2c, a lower frame 2d, a door front side vertical frame 2e, and a door bottom side vertical frame 4. As shown in FIG. The left ends of the upper frame 2c and the lower frame 2d of the frame body 2 are joined to each other by a door tip side vertical frame 2e, and the vicinity of the center of the upper frame 2c and the lower frame 2d in the left-right direction is a door bottom side vertical frame. 4. A frame body 2 fixed to a building frame (not shown) has an opening 2a formed by an upper frame 2c, a lower frame 2d, a front side vertical frame 2e, and a door bottom side vertical frame 4. The frame 2d extends to the right side of the door tail side vertical frame 4. - 特許庁

The upper frame 2c, the lower frame 2d, the door front side vertical frame 2e, and the door bottom side vertical frame 4 are members made of metal, and the frame body 2 of the present embodiment is, for example, an extruded member made of aluminum. The door body 3 is provided so as to be able to open and close the opening 2a formed by the frame body 2 by sliding. opposite. In other words, the end of the door body 3 on the door bottom side corresponds to the meeting side end.

The door body 3 of this embodiment includes a core material 30 made of a panel-shaped heat insulating material, iron aggregates 31 connected to the left side, the right side, and the upper side of the outer periphery of the core material 30, the core material 30 and A door body 33 having a surface material 32 covering the indoor side and the outdoor side of the aggregate 31, and an aluminum door tip member 34 and a door tail end member provided at the end in the in-plane direction of the door body 33 35 , and a first reinforcing member 36 and a second reinforcing member 37 made of iron provided on the door trailing end member 35 . Here, the aggregate 31 may be provided all around the core material 30 .

As shown in FIG. 3, the aggregate 31 includes a pair of aggregate facing portions 31a that face each other with a gap in the projection direction, and an aggregate connecting portion that connects the outer peripheral edges of the pair of aggregate facing portions 31a. 31b, has a U-shaped flat cross section, and is open on the core material 30 side. Each aggregate 31 is provided with a cover material 38 made of synthetic resin that covers the outer peripheral side thereof in a U-shape. The width of the cover member 38 in the direction of projection is substantially equal to the thickness of the core member 30 (the width in the direction of projection), and the surface member 32 is provided so as to extend from the core member 30 to the cover member 38, and the end 3a of the door body 3 (Fig. 2) and is bent to the 3b side.

The door trailing end member 35 includes an end member fixing portion 351 that abuts against the door trailing end 3b of the door body 3 and is fixed to the aggregate 31, and an end member fixing portion 351 that is connected to the door body 3 on the indoor side of the door body 3. It has a hollow structure portion 352 having a hollow portion 35a, and a door side smoke return piece 353 provided on the indoor side with a gap in the direction of projection from the hollow structure portion 352.
The end member fixing portion 351 covers the end 3b of the door body 3 on the side of the door trailing edge and has a flat surface along the projection direction, and is fixed to the aggregate 31 from the outer peripheral side of the door body 3 with screws (not shown).

The hollow structure portion 352 has a hollow portion 35a extending in the vertical direction, and includes a forward-end side projected wall portion 352a and a door-endward projected wall portion 352b which face each other with a gap in the left-right direction and form walls along the projected direction. , an interior wall portion 352c and an exterior wall portion 352d facing each other with a gap in the direction of projection and forming walls along the left-right direction, and having a rectangular cross-sectional shape in plan view. A door trailing wall portion 352b along the trailing direction on the trailing edge side of the hollow portion 35a forms a flat surface connected to the end member fixing portion 351. As shown in FIG.

In the door-end side projection wall portion 352a, a space S is defined between the door-end-side projection wall portion 352a and the door-end-side projection wall portion 352a. A locking piece 352e is provided for locking the space forming member 39 made of synthetic resin covering the screw 5a for fixing the first reinforcing member 36 which is attached. The space forming member 39 has a contact piece that protrudes into the room in a state in which the space forming member 39 is locked by the locking piece 352e and that contacts the door tail side vertical frame 4 when the door body 3 is closed. 39a is provided.

The door body side smoke return piece 353 is provided so as to protrude toward the door from the tip of an extension wall portion 354 which forms a flat surface connected to the door bottom side projected wall portion 352b and extends toward the interior side in the projected direction. there is That is, the door body side smoke return piece 353 is opposed to the interior wall portion 352c forming the interior wall portion of the hollow structure portion 352 with a gap in the projection direction.

As shown in FIG. 2, the door body side smoke return piece 353 is spaced from the vertical frame main body portion 4a of the door trailing side vertical frame 4 on the outdoor side in the direction of projection when the door body 3 closes the opening 2a. It is inserted between the provided vertical frame side smoke return piece 4b and the vertical frame body portion 4a. The abutment piece 39a of the space forming member 39 abuts from the outdoor side on the vertical frame side smoke return piece 4b inserted between the door body side smoke return piece 353 and the interior wall portion 352c.

The first reinforcing member 36 is arranged in the hollow portion 35 a of the hollow structural portion 352 of the door tail end member 35 . The first reinforcing member 36 is shorter than the height of the door body 3 and provided on the upper side of the door body 3, as shown in FIG.
As shown in FIG. 3, the first reinforcing member 36 includes a door trailing side facing portion 36a as a facing portion facing the door trailing side projected wall portion 352b, and a door trailing side facing portion 36a facing the door trailing side projected wall portion 352a. and an indoor connecting portion 36c that connects the indoor side edges of the door bottom side facing portion 36a and the door tip side facing portion 36b and faces the indoor wall portion 352c. The door tail side facing portion 36a, the door tip side facing portion 36b, and the indoor side connecting portion 36c are all plate-shaped, and the door tip side facing portion 36b abuts and is fixed to the door tip side projected wall portion 352a. It is

The indoor-side connecting portion 36c is in contact with two protrusions 352f provided on an indoor wall portion 352c of the hollow structure portion 352 and protruding toward the hollow portion 35a. A penetrating through hole 36d is provided. The door tail side facing portion 36a is such that the indoor side connecting portion 36c is in contact with the two protrusions 352f, and the outdoor side edge 352h is spaced slightly apart from the outdoor wall portion 352d of the hollow structure portion 352. Facing the prospective direction.

The second reinforcing member 37 is provided over substantially the entire length of the door body 3 in the height direction, as shown in FIG. As shown in FIG. 3, the second reinforcing member 37 includes a fixed wall portion 37a that abuts against an interior wall portion 352c of the hollow structure portion 352 and is fixed by a screw 5b that enters in the projection direction, and a fixed wall portion 37a. A projection wall portion 37b extending toward the interior side in the projection direction from the edge of the door bottom side and facing the extended wall portion 354, and an projection wall portion 37b extending toward the door tip side from the edge of the interior side of the projection wall portion 37b. and an indoor reinforcing wall portion 37c. The fixed wall portion 37a and the indoor reinforcing wall portion 37c each have an inclination that widens the distance between them toward the door tip side, and the tip of the indoor reinforcing wall portion 37c hits the door side smoke return piece 353. are in contact.

In the second reinforcing member 37, the projected wall portion 37b is in contact with the extending wall portion 354, the indoor reinforcing wall portion 37c is in contact with the door side smoke return piece 353, and the fixed wall portion 37a is fixed by the screw 5b. . The screw 5b enters from the room side of the fixed wall portion 37a in the projection direction, penetrates the room wall portion 352c, is inserted into the through hole 36d of the room-side connecting portion 36c of the first reinforcing member 36, and is inserted into the door body 33. , are screwed to the aggregate 31 arranged on the outdoor side of the hollow structural portion 352 . For this reason, the door-body-side smoke return piece 353 and the second reinforcing member 37 are provided with cutouts (not shown) that allow entry and screwing operations of the screws 5b.

A heating foam material 6 such as thermally expandable graphite is applied to the room-side surface of the fixed wall portion 37a of the second reinforcing member 37 fixed by the screw 5b and the door-side surface of the prospective wall portion 37b. is provided.

According to the fitting 1 of the present embodiment, it is provided between the door body side smoke return piece 353 and the hollow structure part 352 of the door tail end member 35 covering the meeting side end 3b of the door body 3 in the in-plane direction. A screw 5b for fixing the second reinforcing member 37 made of iron to the aggregate 31 is provided in the hollow portion 35a of the hollow structure portion 352 located between the aggregate 31 and the door body side smoke return piece 353. It penetrates the first reinforcing member 36 made of iron in the direction of projection. Therefore, the aggregate 31, the first reinforcing member 36, and the second reinforcing member 37, all of which are made of metal, are arranged side by side in the direction of projection and connected by screws 5b penetrating in the direction of projection.

By connecting the aggregate 31, the first reinforcing member 36, and the second reinforcing member 37, the door trailing edge member 35 fixed to the aggregate 31 arranged in the meeting portion of the door body 3 is connected to the aggregate 31. From the part fixed to the hollow structure part 352 to the door body side smoke return piece 353 provided with an interval, the first reinforcing member 36 and the second reinforcing member 37 connected are reinforced. Therefore, it is possible to provide the fitting 1 having the door body side smoke return piece 353 whose position is less likely to change even if it is exposed to flames.
Further, since the aggregate 31, the first reinforcing member 36, and the second reinforcing member 37 are made of iron, which has higher heat resistance than aluminum or the like, it is possible to provide higher heat resistance.

In the above embodiment, an example in which the first reinforcing member 36 is fixed to the hollow structure portion 352 has been described, but the first reinforcing member 36 is not fixed to the hollow structure portion 352, and the inner wall portion 352c and the outer wall portion It does not matter if the screw 5b penetrating through 352d is inserted into the through hole 36d.

In addition, the door tail side facing portion 36a along the projection direction on the door tail side of the door body 3, which the first reinforcing member 36 connected to the aggregate 31 and the second reinforcing member 37 by the screws 5b, has is 31 and the second reinforcing member 37 are arranged in parallel with each other in the direction of projection. The door bottom side facing portion 36 a is sandwiched between the door body body 33 and the second reinforcing member 37 . Therefore, the deformation of the door trailing end member 35 can be more reliably suppressed by the door trailing end side facing portion 36 a stretching between the door body body 33 and the second reinforcing member 37 .

Also, in the event of a fire, the upper side is more likely to be heated and deformed. For this reason, according to the fitting 1 of the present embodiment in which the first reinforcing member 36 is not provided over the entire length of the door body 3 but is provided on the upper end side, it is possible to reduce the cost while reducing the weight, and more efficiently Deformation of the member 35 can be suppressed.

In the above-described embodiment, the fitting 1 having the hanging door 3 that slides while being suspended from the frame 2 has been described as an example, but the present invention is not limited to this, and a door with a slidable smoke return piece, It does not matter if it is fittings having a shoji.

The above-described embodiments are intended to facilitate understanding of the present invention, and are not intended to limit and interpret the present invention. The present invention can be modified and improved without departing from its spirit, and it goes without saying that the present invention includes equivalents thereof.

This embodiment includes at least the following inventions.
A metal aggregate provided at a meeting part of a slidably provided door body, a hollow structure portion fixed to the aggregate and having a hollow portion, and a gap in the projection direction from the hollow structure portion an end member provided with a door body side smoke return piece; a metal first reinforcing member provided in the hollow portion; and a metal second member provided between the door body side smoke return piece and the hollow structural portion. and a reinforcing member, wherein the second reinforcing member is fixed to the aggregate by a fixing member penetrating the first reinforcing member in a prospective direction.

According to such fittings, the fixing member that fixes the second metal reinforcing member provided between the door body side smoke return piece and the hollow structural part of the end member to the aggregate is the aggregate. The metal first reinforcing member provided in the hollow portion of the hollow structure portion positioned between the door body side smoke return piece is penetrated in the prospective direction. For this reason, the aggregate, the first reinforcing member, and the second reinforcing member, which are all metal members, are arranged side by side in the prospective direction and connected by the fixing member penetrating in the prospective direction.

By connecting the aggregate, the first reinforcing member, and the second reinforcing member, the end member fixed to the aggregate arranged in the joint portion of the door body has a hollow structure from the portion fixed to the aggregate. Even the door-body-side smoke return piece provided with an interval from the part is reinforced by the connected first reinforcing member and the second reinforcing member. Therefore, it is possible to provide fittings having a smoke return piece whose position is less likely to change even when exposed to flames.

In this fitting, the first reinforcing member has a facing portion that faces a wall portion along the projection direction on the door bottom side of the door body in the hollow structure portion, and the facing portion is made of the aggregate It is arranged at a position aligned in the projection direction with the door body to which the end member is attached and the second reinforcing member.

According to such fittings, the first reinforcing member connected to the aggregate and the second reinforcing member by the fixing member has the aggregate on the door bottom side of the door body along the projection direction. Since the door body and the second reinforcing member are aligned in the direction of projection, when the width of the hollow structural portion in the direction of projection is narrowed, it is sandwiched between the door body and the second reinforcing member. Therefore, it is possible to more reliably suppress deformation of the end member by the opposing portion stretching between the door body and the second reinforcing member.

This fitting is characterized in that the first reinforcing member is provided on the upper side of the door body.
In the event of a fire, the upper side is more likely to be heated and deformed. For this reason, according to the above fittings in which the first reinforcing member is not provided over the entire length of the door but is provided on the upper end side, it is possible to reduce the weight, reduce the cost, and more efficiently suppress the deformation of the end member. is.

This fitting is characterized in that the first reinforcing member and the second reinforcing member are made of iron.
According to such fittings, since the first reinforcing member and the second reinforcing member are made of iron having higher heat resistance than aluminum or the like, higher heat resistance can be achieved.

1 fitting, 3 door body, 3b meeting side end of door body, 5b screw,
31 Aggregate 33 Door Body Main Body 35 Door Bottom End Member 35a Hollow Part
36 first reinforcing member, 36a door tail side facing portion, 37 second reinforcing member,
352 Hollow structure portion 352a Door end side expected wall portion 353 Door body side smoke return piece

Claims (4)

a metal aggregate provided in the meeting part of the slidably provided door body;
an end member that is fixed to the aggregate and has a hollow structural portion having a hollow portion and a door body-side smoke return piece that is provided with a gap in the projection direction from the hollow structural portion;
a metal first reinforcing member provided in the hollow portion;
a metal second reinforcing member provided between the door body side smoke return piece and the hollow structure;
has
The fitting, wherein the second reinforcing member is fixed to the aggregate by a fixing member penetrating the first reinforcing member in a prospective direction. The fitting according to claim 1,
The first reinforcing member has a facing portion that faces a door trailing side projected wall portion along the projected direction on the door trailing side of the door body in the hollow structural portion,
The fitting, wherein the facing portion is arranged at a position aligned with the door body having the aggregate and to which the end member is attached, and the second reinforcing member in the projection direction. The fitting according to claim 1 or claim 2,
A fitting, wherein the first reinforcing member is provided on an upper side of the door body. The fitting according to any one of claims 1 to 3,
The fitting, wherein the first reinforcing member and the second reinforcing member are made of iron.

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