JP7152259B2 - fire door - Google Patents

Description

The present invention relates to a sliding door type fire door.

Sliding fire doors are generally known as fire prevention equipment for preventing the spread of fire in the event of a fire. In a sliding door type fire door, a structure that prevents gaps from forming in the abutting part where the door tips or the door tip and the vertical frame are butted against each other when closed, that is, in the direction perpendicular to the opening when the door body is closed. A structure that blocks flames is adopted. As a structure of such abutting portion, for example, a phase-locking structure, a structure having a ruler edge, and the like are known. In addition, in the draw-type fire doors described in Patent Documents 1 and 2, in the abutting portion, a concave portion is provided on one end-side frame (vertical frame), and a convex portion is provided on the other end-side frame. A structure is adopted in which the recesses and protrusions overlap to block the flame.

JP-A-8-284544 JP 2017-31613 A

By the way, when the concave-convex structure as described in Patent Documents 1 and 2 is adopted, the shapes of the left and right door frames to be butted against each other are different from each other. The frame on the side of the door is more likely to be thermally deformed, and as a result, there is concern that a gap will be formed and the fireproof performance will be reduced. In particular, the concern becomes greater when an aluminum material having a melting point lower than that of general steel material is used for the door frame. It is desired to improve the fire resistance and productivity of the frame on the side of the door while adopting an uneven structure in the butted portion of the fire door.

The present invention has been invented in order to solve the above-mentioned problems. As a door body, a first door body and a second door body are provided, and the first door body and the second door body are provided with a first door end side frame and a second door end side frame at the door end, In the drawer type fire door, the first door end side frame and the second door end side frame are composed of frame members of the same shape having vertically elongated grooves on the facing surfaces of the door ends, A convex member protruding from the concave groove of the first door end side frame toward the door end side of the first door body is attached to the concave groove of the first door end side frame, and the convex member is attached to the first door end side frame. When the door tips of the door body and the second door body are butted against each other, it is configured to enter into the recessed groove of the second door tip side frame, and the projecting member is made of the same material as the frame member. A fire door characterized by
In the invention of claim 2 , a first door body and a second door body are provided as a pair of door bodies which are slidable in the left-right direction and close the opening by the door ends being butted against each other, and the first door body The door body and the second door body are the first door end side frame and the second door end side frame, respectively, in the drawer type fire door equipped with the first door end side frame and the second door end side frame. The side frames are made of frame members of the same shape with vertically elongated grooves on the facing surfaces of the door ends. A projecting member protruding from the groove of the first door end side frame is attached toward the second door body, and the projecting member projects from the first door body and the second door body when the door ends of the first door body and the second door body are butted against each other. It is configured to be inserted into the groove of the second door end side frame, and a cushioning material is attached to the tip of the projecting member that abuts on the groove bottom of the groove of the second door end side frame. It is a characteristic fire door.
In the invention of claim 3 , a first door body and a second door body are provided as a pair of door bodies which are slidable in the left-right direction and whose door ends are butted against each other to close the opening. The door body and the second door body are the first door end side frame and the second door end side frame, respectively, in the drawer type fire door equipped with the first door end side frame and the second door end side frame. The side frames are made of frame members of the same shape with vertically elongated grooves on the facing surfaces of the door ends. A projecting member protruding from the groove of the first door end side frame is attached toward the second door body, and the projecting member projects from the first door body and the second door body when the door ends of the first door body and the second door body are butted against each other. The convex member is formed of the same material as the frame member, and the tip of the convex member is formed in the concave groove of the second door front side frame. This fire door is characterized by a cushioning material attached to the bottom of the groove .
In the invention according to claim 4, reinforcing members having the same shape and made of a metal material having a higher melting point than the frame member are disposed inside the first door end side frame and the second door end side frame. The fire door according to any one of claims 1 to 3 , characterized in that:
The invention of claim 5 is the fire door according to any one of claims 1 to 4 , wherein the projecting member has a tapered tip.
The invention according to claim 6 is characterized in that the projecting member has a tapered shape from a position protruding from the front end of the first door frame on the door front side. It is the described fire door.
The invention according to claim 7 is characterized in that the concave groove of the first door end side frame is provided with a locking portion for locking the projecting member to the first door end side frame. A fire door according to any one of Items 1 to 6.

By adopting the invention of claim 1, it is possible to adopt a concave-convex structure while making the frame member of the first door end side frame and the second door end side frame common, so that fire resistance and productivity are improved. In addition, even if the projecting member is exposed when the fire door is opened, there is little sense of incongruity, and the design is excellent.
By adopting the invention of claim 2, the frame member of the first door end side frame and the second door end side frame can be made common and the concave-convex structure can be adopted, so fire resistance and productivity are improved. In addition to being excellent, consideration can be given to finger jamming.
By adopting the invention of claim 3, the frame member of the first door end side frame and the second door end side frame can be made common and the concave-convex structure can be adopted, so fire resistance and productivity are improved. In addition, even if the projecting member is exposed when the fire door is opened, there is little sense of incongruity, the design is excellent, and consideration can be given to pinching fingers.
According to the fourth aspect of the present invention, the reinforcing members in each door frame can be made to have the same shape, so fire resistance and productivity are excellent.
By setting it as the invention of Claim 5 , it should be considered as the finger jamming.
According to the sixth aspect of the present invention, it is possible to minimize the gap in the recessed groove while taking into account the pinching of the fingers.
By adopting the invention of claim 7, it is possible to adopt a concave-convex structure while making common the frame members of the first door end side frame and the second door end side frame, thereby improving fire resistance and productivity. Excellent.

1 is a front view of a fire door according to an embodiment; FIG. FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1; It is a longitudinal cross-sectional view showing the internal structure of a fire door. It is explanatory drawing which shows operation|movement of a butt|matching part, (A) at the time of opening, (B) at the time of closing. FIG. 10 is a plan sectional view of a main part showing an example of use in a swing door; (A) Principal part plane sectional drawing which shows the modification of the fire door which concerns on embodiment, (B) It is a reference drawing which shows comparison with this invention.

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of the present invention will be described in detail below with reference to the drawings. 1 is a sliding door type fire door, which is provided at the opening of the frame. The fire door 1 is a pair of left and right drawable door bodies that can be slid in the left and right direction (viewing direction) to open and close the opening. A pair of FIX parts 3 overlapping each of the door bodies 20, 30 in the front-rear direction (projection direction), and a mesh 4 provided on the upper end of each of the door bodies 20, 30 and the FIX part 3 over the entire area in the left-right direction. . Further, the fire door 1 according to the present embodiment is of a so-called automatic door type. A long rail portion 6 is arranged in the left-right direction. Each of the door bodies 20 and 30 is suspended from the rail section 6 via the door hanger 7 attached to the upper end thereof, and slides in the left-right direction based on the drive of the driving section 5 to open and close the opening. controlled to Although the exterior side of the frame is described as the front side and the interior side as the rear side, this is for the sake of convenience and is not limited to this.

In this embodiment, the door body on the right side is the first door body 20 and the door body on the left side is the second door body 30 in front view. The first and second door bodies 20 and 30 are automatic hanging doors, and are constructed by surrounding heat-resistant glass 2a, which is a panel body, with a frame 2b made of an aluminum material. Of the four peripheral frames 2b of the first and second door bodies 20 and 30, the upper frame 8, the door bottom side frame 10, and the lower frame 11 have a common symmetrical structure. A door hanger 7 having a hanger roller 7a is attached to the upper end of the upper frame 8, and the hanger roller 7a is slidably supported by the rail 6b of the rail portion 6 in the left-right direction. is suspended so as to be slidable in the left-right direction.

On the other hand, regarding the frame on the end side of the door, the one for the first door body 20 is designated as the first end-side frame 21, and the one for the second door body 30 is designated as the second end-side frame 31, and the door bodies 20 and 30 are butted together. The following structure is adopted for fireproof performance at time. Both the first door end side frame 21 and the second door end side frame 31 are composed of frame members 2e having the same shape and having vertically elongated grooves 22, 32 on opposing surfaces of the door ends. ing. The openings of the door bodies 20 and 30 are closed by abutting the ends of the front door frames 21 and 31. A projecting member 40 projecting from the recessed groove 22 toward the door tip side (right side) of the door body 20 is attached. Then, when the door ends of the first door body 20 and the second door body 30 are butted against each other, the projecting member 40 enters into the recessed groove 32 of the second door end side frame 21.例文帳に追加As a result, it is possible to prevent gaps from occurring in the butted portions of the door tips, so that the fireproof performance of the fire door 1 can be ensured.

The frame member 2 e is made of an elongated aluminum material and is a main member commonly used for the first door end side frame 21 and the second door end side frame 31 . Since the frame member 2e has a line-symmetrical shape in a plan view, it can be used in common for the first door end side frame 21 and the second door end side frame 31 that face each other. The door leading end side of the frame member 2e is provided with grooves 22 and 32 in the door end side frames 21 and 31, forming a substantially U-shaped cross section. In addition, on the inner periphery of the recessed grooves 22 and 32, a locking projection 2f is provided that protrudes inward from the groove bottom at a position slightly on the door front end side. This engaging projection 2f is an engaging portion that enables the projecting member 40 to be attached to the first door frame 21 by engaging with the rear end engaging portion 42 of the projecting member 40 as will be described later. . In addition, the locking projection 2f may be provided over the entire area in the vertical direction, may be provided partially, or may be provided intermittently.

The projecting member 40 is made of an aluminum material like the frame member 2e, and has a tapered distal end portion 41 and a rear end locking portion 42 that engages with the locking projection portion 2f of the frame member 2e. Further, a cushioning material 43 is attached to the tip portion 41 of the projecting member 40 for cushioning and abutting against the groove bottom of the recessed groove 32 of the second door frame 31 . In this way, by making the tip portion 41 of the projecting member 40 tapered or by attaching the cushioning material 43, a structure is achieved in which fireproof performance is ensured and consideration is given to jamming with fingers and the like. In addition, by forming the projecting member 40 and the frame member 2e from the same material, the projecting member 40 exposed when the fire door 1 is opened is inconspicuous and the design is excellent.

The protruding member 40 in the present embodiment has a tapered shape toward the tip portion 41 from the protruding base portion of the rear end locking portion 42 that protrudes in the front-rear direction. At the time of assembly, the rear end locking portion 42 is inserted between the locking convex portion 2f in the groove bottom 22 of the first door end side frame 21 and the groove bottom, thereby attaching the projecting member to the first door end side frame 21. 40 can be attached. The projecting member 40 is designed so that the cushioning material 43 abuts against the groove bottom 32 of the second door frame 31 when the fire door 1 is closed. That is, the lateral length (the length in the projecting direction) of the projecting member 40 is about twice the depth of the recessed grooves 22 and 32 including the cushioning material 43 .

As described above, by using the common frame member 2e for the first door end side frame 21 and the second door end side frame 31 and attaching the projecting member 40 only to one first door end side frame 21, While exhibiting the shielding effect of the concave-convex structure of the convex member 40 and the concave groove 32, the productivity can be improved, and the difference in thermal deformation between the door frames can be suppressed. there is

The lower frame 11 is provided with a steady rest 2d protruding downward. The steady rest 2d is slidably inserted in the horizontal direction into a concave groove of a guide rail G provided in the horizontal direction under the door bodies 20 and 30, and is restricted from moving in the front-rear direction. As a result, when the door bodies 20 and 30 suspended at the upper part are slid to the left and right based on the drive of the driving part 5, the lower parts of the door bodies 20 and 30 are prevented from swinging in the front-rear direction. It's becoming

The upper frame 8 is assembled so that the upper end portion 8a enters the inside of the mesh 4 from the lower opening 4a of the mesh 4. - 特許庁Inside the upper frame 8, the first and second door frame 21, 31, and the door bottom frame 10, a reinforcing member 2c made of mild steel and having a substantially U-shaped cross section is installed along each facing surface. are arranged. The reinforcing member 2c is made of mild steel, which has a higher melting point and lower thermal conductivity than the frame 2b made of aluminum. Incidentally, the reinforcing member 2c may also be arranged on the lower frame 11 in the same manner. Here, since the first door end side frame 21 and the second door end side frame 31 are both made of the same shaped frame member 2e, the shape of the reinforcing member 2c disposed inside thereof is also the same shape. You can do it.

In the FIX part 3, a heat-resistant glass 3a has a top end as a blind 4, a bottom end as a baseboard 12, a left-right center side end as an intermediate mullion 13, and the other end as the left and right ends of the opening. Each of them is inserted into a vertical frame 14 which is provided, fixed by sealing, and surrounded on all four sides. The door bodies 20 and 30 and the FIX section 3 are arranged with a positional shift in the front-rear direction, and the FIX section 3 is configured to be positioned on the front side (outside of the frame). As a result, when the door bodies 20 and 30 slide left and right, the door bodies 20 and 30 and the FIX section 3 overlap each other in the front-rear direction when the opening is opened.

A pair of vertical frames 14 provided opposite to the left and right ends of the opening of the frame serve as a vertically elongated groove-shaped insertion part for inserting and attaching each member. It has an insertion portion 14a, a second insertion portion 14b and a third insertion portion 14c. In the present embodiment, the left and right outer ends of the heat-resistant glass 3a of the FIX portion 3 are inserted into the first insertion portion 14a and sealed, while the second insertion portion 14b and the third insertion portion 14c are respectively second cover members. 14d and covered by a third cover member 14e. The second insertion part 14b can be used for inserting and fixing a panel such as heat-resistant glass in the transom part when the transom part is provided on the upper part of the mulch 4 . Further, as shown in FIG. 5, the third insertion portion 14c can enable insertion of the tip portion of the door body (the projecting member 40 of the present embodiment) in the case of a one-sided hinged door. It is. In this case, the first insertion portion 14a is covered with the first cover member 14f, and the second insertion portion 14b is covered with the second cover member 14d. On the other hand, a convex member 40 is inserted into the first insertion portion 14a, and a cushioning material 43 is in contact with the bottom of the groove. Since the vertical frame 14 having such a structure can be employed in various structures, it has high versatility.

The door trailing frame 10 and the intermediate mullion 13 are designed to overlap each other in the front and rear direction when the door bodies 20 and 30 are in the closed position. The door tail side stile 10 is provided with a hook-shaped smoke return portion 10a extending from the door tail end toward the FIX section 3 side (outside). A smoke return portion 13a extending like a hook toward the side frame 10 (inner side) is provided. When the door bodies 20 and 30 are in the closed position, the smoke return parts 10a and 13a have a mutual shell structure, so that when a fire occurs, flames and flames are emitted from between the door bodies 20 and 30 and the FIX part 3. Care is taken to prevent smoke from passing through.

The mesh 4 is provided between the upper part of each door body 20, 30 and the upper frame 19, and has a case body 15 made of aluminum material as an outer peripheral part, inside which the driving part 5 and the rail part 6 are arranged. is set. The drive unit 5 is controlled to move the door bodies 20 and 30 in the opening direction by detecting the approach of a person or the like to the fire door 1 by a detection sensor (not shown). The drive unit 5 in this embodiment is a general structure configured to slide the door bodies 20 and 30 via the door hanger 7 connected to the chain by displacing the chain to which the power of the electric motor is transmitted. However, it is not limited to this, and can be set as appropriate. A detachable cover member 18 is provided on the rear surface of the mesh 4, and by opening and closing the cover member 18, it is possible to inspect and adjust the drive unit 5 and rail portions inside the mesh 4. ing.

As a modified example of the frame member 2e and the projecting member 40, those shown in FIG. 6(A) can be used. In this modification, the groove bottoms of the grooves 22 and 32 of the frame member 2e are deeper than those of the first embodiment. Further, the lateral length of the convex member 40 is closer to the lateral length between the groove bottoms of the respective concave grooves 22 and 32 at the time of butting, so it is longer than that of the first embodiment. The convex member 40 has a linear portion 44 extending straight from the rear end portion having the rear end locking portion 42 protruding in the front-rear direction to the vicinity of the tip of the concave groove 22 without being tapered. and tapers from the tip. By increasing the depth of the recessed groove and lengthening the lateral length of the projecting member 40 accordingly, it is possible to increase the engagement margin when the first door body 20 and the second door body 30 are butted together. and improve fire resistance. In addition, the tip 41 of the projecting member 40 is tapered from the position where it protrudes from the tip of the door tip side of the first door tip side frame 21, thereby avoiding the formation of a gap as much as possible. be able to.

According to the embodiment of the present invention configured as described above, in the fire door 1, the first door end side frame 21 and the second door end side frame 31 have vertically elongated grooves 22, 32 at the door end. Consisting of frame members 2e of the same shape provided on opposing surfaces thereof, a projecting member protruding from the recessed groove 22 toward the door end side of the first door body 20 is provided in the recessed groove 22 of the first door end side frame 21. 40 is attached, and when the door ends of the first door body 20 and the second door body 30 are butted against each other, the projecting member 40 is configured to enter the recessed groove of the second door end side frame 31. ing. As a result, it is possible to secure the fireproof performance due to the concave-convex structure while using a common stile member for the stiles on the side of the door, so that the fire resistance and productivity are excellent. In addition, since the common frame member 2e is used for the first and second door frame members 21 and 31, when disposing the reinforcing member 2c made of a metal material having a higher melting point than the frame member 2e therein, , reinforcing members 2c having the same shape as each other can be used.

In this respect, as shown in FIG. 6(B), when the left and right door frame members 100 and 101 have different frame member shapes, the front and rear surfaces of the door frame have the same shape in appearance. As a result, the reinforcing members 102 and 103 also have to have different shapes on the left and right. As a result, there is a concern that the left and right side frames 100 and 101 have different fire resistances, and that only one of them is thermally deformed, making it impossible to maintain the fire resistance. The present invention solves these problems.

Further, in this embodiment, the tip portion 41 of the projecting member 40 is tapered, and a cushioning material 43 is attached to the tip of the projecting member 40 so as to contact the bottom of the groove 32 of the second door frame 31. It is designed with consideration given to finger tightness. In the modified example of FIG. 6(A), the tip portion 41 of the projecting member 40 is tapered from the position where it protrudes from the tip of the door tip side of the first door tip side frame 21, thereby creating a gap. as much as possible.

Furthermore, since the projecting member 40 is made of the same aluminum material as the frame member 2e, even if the projecting member 40 is exposed when the fire door 1 is opened, the feeling of discomfort is small and the design is excellent.

In the above embodiment, a so-called automatic door has been described, but the present invention is not limited to this, and can be applied to a manually openable/closable fire door that does not have a drive unit.

INDUSTRIAL APPLICABILITY The present invention can be used in the field of fire prevention equipment.

Reference Signs List 1 fire door 2c reinforcing member 2e frame member 2f locking projection (locking portion)
20 First door body 21 First door end side frame 22 Groove 30 Second door body 31 Second door end side frame 32 Groove 40 Projecting member 41 Tip part 43 Cushioning material

Claims (7)

A first door body and a second door body are provided as a pair of door bodies that are slidable in the left-right direction and close the opening by abutting the door ends,
The first door body and the second door body are a draw-type fire door in which the first door body and the second door body are provided with a first door end side frame and a second door end side frame at the door end, respectively,
The first door end side frame and the second door end side frame are composed of frame members having the same shape and having grooves elongated in the vertical direction on opposing surfaces of the door ends,
A convex member protruding from the groove of the first door end side frame toward the door end side of the first door body is attached to the groove of the first door end side frame,
The projecting member is configured to enter into the recessed groove of the second door end side frame when the door ends of the first door body and the second door body are butted against each other. A fire door characterized by being made of the same material as a frame member . A first door body and a second door body are provided as a pair of door bodies that are slidable in the left-right direction and close the opening by abutting the door ends,
The first door body and the second door body are a draw-type fire door in which the first door body and the second door body are provided with a first door end side frame and a second door end side frame at the door end, respectively,
The first door end side frame and the second door end side frame are composed of frame members having the same shape and having grooves elongated in the vertical direction on opposing surfaces of the door ends,
A convex member protruding from the groove of the first door end side frame toward the door end side of the first door body is attached to the groove of the first door end side frame,
The projecting member is configured to enter into the recessed groove of the second door end side frame when the door ends of the first door body and the second door body are butted against each other, and the tip of the projecting member. is attached with a cushioning material that abuts against the groove bottom of the concave groove of the second door tip side frame . A first door body and a second door body are provided as a pair of door bodies that are slidable in the left-right direction and close the opening by abutting the door ends,
The first door body and the second door body are a draw-type fire door in which the first door body and the second door body are provided with a first door end side frame and a second door end side frame at the door end, respectively,
The first door end side frame and the second door end side frame are composed of frame members having the same shape and having grooves elongated in the vertical direction on opposing surfaces of the door ends,
A convex member protruding from the groove of the first door end side frame toward the door end side of the first door body is attached to the groove of the first door end side frame,
The projecting member is configured to enter into the recessed groove of the second door end side frame when the door ends of the first door body and the second door body are butted against each other. A fire door characterized by being made of the same material as the stile member and having a cushioning material attached to the tip of the projecting member, the cushioning material coming into contact with the groove bottom of the recessed groove of the second door tip side stile . 2. A reinforcing material having the same shape and made of a metal material having a higher melting point than that of the frame member is disposed inside each of the first door end side frame and the second door end side frame. The fire door according to any one of 1 to 3 . The fire door according to any one of claims 1 to 4, wherein the projecting member has a tapered tip. The fire door according to any one of claims 1 to 5 , characterized in that said projecting member has a tapered shape from a position protruding beyond the front end of said first door frame. 7. The concave groove of the first door end side frame is provided with a locking portion for locking the projecting member to the first door end side frame. 1. The fire door according to 1.

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