JP2013023993A - Shutter unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lower-cost shutter unit excellent in fire retardant properties.SOLUTION: A shutter unit includes: a liftable/lowerable shutter curtain; a guide rail which guides the lifting and lowering of the shutter curtain; a reinforcing member which is provided in and along the guide rail to reinforce the guide rail; a shutter box which is provided on the guide rail and winds up and stores the shutter curtain; and an attachment which is disposed at a position overlapping the reinforcing member in a depth direction and fixed to the shutter box. The reinforcing member, the shutter box, and the attachment are made of a member having a melting point higher than that of the guide rail.

Description

  The present invention relates to a shutter unit having a shutter curtain that can be raised and lowered.

  As a shutter unit having a shutter curtain that can be moved up and down, a panel shutter (shutter unit) in which an aluminum alloy panel is bent and connected along a guide rail is known (for example, Patent Document 1). reference). In such a shutter unit, guide rollers are provided at both ends of the shutter curtain, and a guide rail having a rail groove into which the guide roller is movably fitted is attached to a side column of the building.

  Moreover, the side pillar is provided with a stainless steel side cover over the entire length of the guide rail. The side cover is provided so as to cover the guide rail and the end portion of the panel, and the panel is heated and curved by a fire, and prevents a gap from being generated even when the guide roller is detached from the guide rail.

JP 2010-222872 A

  However, when the side cover that covers the guide rail and the panel end is attached like the shutter unit, the portions located on both sides of the opening that is opened and closed by the shutter curtain are enlarged, and the shutter unit is enlarged. There is. Further, the side cover is provided on the outer side so as to cover the guide rail and the panel end portion, and is a member sufficiently larger than the guide rail. When expensive stainless steel is used in order to take into account fire prevention and design, the shutter is used. There exists a subject that a unit may also become expensive.

  This invention is made | formed in view of this subject, The place made into the objective is to provide the cheaper shutter unit excellent in fire prevention property.

To achieve this object, the shutter unit of the present invention includes a shutter curtain that can be raised and lowered,
A guide rail for guiding the raising and lowering of the shutter curtain;
A reinforcement member provided along the guide rail in the guide rail and reinforcing the guide rail;
A shutter box provided on an upper portion of the guide rail to wind up and accommodate the shutter curtain;
An attachment fixed to the shutter box and disposed between the reinforcing member and the guide rail,
The reinforcing member, the shutter box, and the attachment are constituted by members having a melting point higher than that of the guide rail.

  According to such a shutter unit, since the reinforcing member having a higher melting point than the guide rail is provided in the guide rail that guides the shutter curtain, the guide rail is exposed to a flame and melted. However, the reinforcing member remains. In addition, an attachment with a higher melting point than the guide rail is arranged between the reinforcing member and the reinforcing member, so even if the guide rail is exposed to a flame and melts, the attachment of the reinforcing member will fall down due to the attachment. Is prevented. For this reason, since the reinforcing member does not fall down and a gap is not formed between the shutter curtain and the reinforcing member, it is possible to provide a shutter unit having excellent fire resistance.

  In addition, the attachment that prevents the fall of the reinforcing member that restricts the movement of the shutter curtain when the guide rail melts is fixed to the shutter box, which has a higher melting point than the guide rail, so even if the guide rail has melted In addition, the state in which the attachment is disposed outside the reinforcing member is maintained. For this reason, it is possible to provide a shutter unit having more excellent fireproofing properties. At this time, since the attachment only prevents the reinforcement member from falling down, the attachment only needs to have a portion overlapping the reinforcement member in the prospective direction. For this reason, since the reinforcing member may be smaller than the guide rail, it is possible to provide a shutter unit that is inexpensive and more excellent in fire resistance.

In such a shutter unit, the guide rail includes an insertion portion into which an end of the shutter curtain is inserted on one side in the finding direction, a finding plate portion along the finding direction, and a prospective direction on the other side in the finding direction. It is desirable that the attachment includes a finding piece facing the finding plate portion and a prospecting piece facing the prospecting plate portion.
According to such a shutter unit, since the attachment has the locating piece facing the locating plate portion of the guide rail and the sighting piece facing the observing plate portion of the guide rail, even if the shutter unit is in flame. Even if exposed, the guide rail is protected by the finding piece and the prospective piece, so that the melting of the guide rail can be suppressed.

In this shutter unit, it is preferable that the attachment is fixed to the shutter box together with a decorative plate that covers the outside of the shutter box.
According to such a shutter unit, the attachment is fixed to the shutter box together with the decorative plate. Therefore, by attaching the attachment, it is possible to provide the attachment without increasing the number of fixing tools such as screws and fixing. is there.

  According to the present invention, it is possible to provide a cheaper shutter unit having excellent fire resistance.

It is a longitudinal cross-sectional view of the shutter unit which concerns on this embodiment. It is a horizontal sectional view of the shutter unit concerning this embodiment. It is a disassembled perspective view explaining the structure of a shutter box and a shutter curtain. Fig.4 (a) is a perspective view explaining the site | part to which an attachment is attached, FIG.4 (b) is a perspective view which shows the attachment to which it is attached.

  Hereinafter, a shutter unit according to an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 and 2, the shutter unit 10 according to the present embodiment is attached to a housing in the same manner as the sash window 20 on the outer peripheral side of the sash window 20 provided in the opening of a building, for example.

  In the following description, when the shutter unit 10 is viewed from the outdoor side, the up / down direction is the up / down direction, the left / right direction is the left / right direction or the finding direction, and the depth direction which is the indoor / outdoor direction is a prospective direction (out-of-plane direction). As shown. Each member included in the shutter unit 10 will be described by specifying the direction in the depth direction, the left-right direction, and the up-down direction when the shutter unit 10 is attached even if it is a single unit.

  The shutter unit 10 according to the present embodiment includes a shutter curtain 12 that can be moved up and down, a pair of left and right guide rails 14 for accommodating both ends of the shutter curtain 12 in the direction in which the shutter curtain 12 is located, and guiding the raising and lowering of the shutter curtain 12, and a guide A reinforcing member 16 that reinforces the guide rail 14 provided along the guide rail in the rail 14, a pair of left and right shutter vertical frames 17 interposed between the guide rail 14 and the housing, and a pair of left and right shutters A shutter lower frame 18 that connects the lower ends of the vertical frames 17, a shutter upper frame 19 that spans and connects the upper sides of the pair of left and right shutter vertical frames 17, and a shutter curtain 12 that is provided above the guide rails 14 is wound up. Shutter box 50 to be housed and fixed to the shutter box 50 An attachment 30, has a decorative plate 55 covering the outside of the shutter box 50.

  In the shutter box 50, an elevating device for elevating the shutter curtain 12 is provided, but is omitted in FIGS. Here, the guide rail 14 is made of aluminum, and the shutter curtain 12, the reinforcing member 16, the shutter box 50, and the attachment 30 are all formed of iron as a member having a melting point higher than that of aluminum.

  The shutter unit 10 includes a sash window provided on a wall in which a pair of shutter vertical frames 17 to which guide rails 14 are attached, a shutter lower frame 18 and a shutter upper frame 19 are fixed so as to form a substantially rectangular shape. It is attached to the outer peripheral side so as to surround 20. At this time, the pair of shutter vertical frames 17 protrude above the shutter upper frame 19, and the shutter box 50 is disposed between the portions protruding above the pair of shutter vertical frames 17. In FIGS. 1 and 2, the shoji that the sash window 20 has is omitted.

  Since the guide rail 14, the reinforcing member 16, the shutter vertical frame 17, and the attachment 30 which are provided on the left and right and are paired have a symmetrical shape reversed left and right, here, the guide rail located on the left side when viewed from the outdoor side. 14, the reinforcing member 16, the shutter vertical frame 17, and the attachment 30 will be described. In FIG. In the following description, a space between the guide rail 14, the reinforcing member 16, the shutter vertical frame 17, and the attachment 30 that are provided on the left and right sides in the finding direction is referred to as an inside in the finding direction, and an opposite side is referred to as an outside in the finding direction.

  The left shutter vertical frame 17 is an extrusion molding member, and a vertical frame main body 17a formed of a hollow portion having a rectangular shape with a long horizontal cross section in a prospective direction, and an outer peripheral wall portion 17b on the outer peripheral side of the vertical frame main body 17a are slightly chambered. A fixed fin portion 17c that extends outward from the end extending inward in the direction of finding and the shutter vertical frame 17 is fixed with screws, and an outer peripheral wall portion 17b of the vertical frame main body 17a extends outward. An engagement plate portion 17d that extends inward in the finding direction from the formed end and whose tip engages with the guide rail 14, and an outdoor wall portion 17e that forms a surface along the finding direction on the outdoor side of the vertical frame body 17a. Has a rail fixing portion 17f that extends inward in the direction of finding and extends from the end portion to the outdoor side to which the guide rail 14 is fixed.

  At the upper and lower ends of the shutter vertical frame 17, an outer peripheral wall portion 17 b and a portion where the outer peripheral wall portion 17 b extends in the direction of finding protrude upward or downward, and the protruding portion is arranged in a prospective direction. Two through holes 17g (FIG. 4) are provided, which are fixed to the shutter lower frame 18 by screws passing through the lower end side through hole (not shown), and pass through the upper end side through hole 17g (FIG. 4). The roof plate 56 is fixed with screws.

  The guide rail 14 is an aluminum-made extruded member, and its horizontal cross section has a substantially U shape with the inside in the direction of finding being opened. The end of the shutter curtain 12 is accommodated on the open end side. That is, a portion opened on the inner side in the direction in which the guide rail 14 is found corresponds to the insertion portion 14a.

  Since the shutter curtain 12 is moved up and down by moving the part facing the prospective direction of the guide rail 14 in the vertical direction, the sliding member 21 is fitted to the part facing the prospective direction of the guide rail 14. A moving material fitting portion 14b is provided. In the guide rail 14, the internal space is partitioned into an open space 14d and a hollow space 14e by a partition wall 14c at a position biased toward the outer peripheral side. That is, the open side where the end of the shutter curtain 12 of the guide rail 14 is inserted is the open space 14d, and the hollow space 14e is provided on the back side opposite to the opened side.

  The wall portion 14f on the indoor side of the hollow space 14e has a hook portion 14g provided so as to protrude toward the indoor side. The hook portion 14 g is a portion that engages with the engagement plate portion 17 d of the shutter vertical frame 17. The wall 14h on the indoor side of the open space 14d has a prospective wall 14i provided so as to protrude toward the indoor side. The prospective wall portion 14i is a portion that is screwed so as to overlap the rail fixing portion 17f of the shutter vertical frame 17 in the direction of finding. The wall 14h on the indoor side of the open space 14d is provided with a regulating piece 14j that projects inward and regulates the movement of the inserted shutter curtain 12 in the direction of finding.

  The upper end side of the guide rail 14 is provided with a cut 14l in the vertical direction outside the position in the direction of finding the end of the shutter curtain 12 inserted in the find plate 14k that is the wall portion on the outdoor side. From 141 (FIG. 4), the inner portion in the finding direction is provided with a curved portion 14m (FIG. 4) which is bent by bending so as to be located on the outdoor side toward the upper end. The curved portion 14m is configured such that the distance between the wall portion 14h on the indoor side of the guide rail 14 and the locating plate portion 14k in the prospective direction becomes wider upward, and the shutter curtain 12 that moves up and down is wound up. When the reels are fed out, they are configured to move up and down smoothly even if the winding diameter changes. The upper end portion including the curved portion 14m of the guide rail 14 is inserted into the shutter box 50, and the lower end of the notch 14l reaches below the shutter box 50 in the shutter unit 10 formed to be as small as possible.

  The reinforcing member 16 is provided in the open space 14d of the guide rail 14, and the outer finding plate portion 16a provided on the hollow space 14e side from the sliding material fitting portion 14b along the finding plate portion 14k of the guide rail 14. The inner finding plate portion 16b, the outer finding plate portion 16a and the inner finding plate portion 16b provided on the hollow space 14e side from the sliding material fitting portion 14b along the indoor wall portion 14h are connected to the hollow space 14e side. The prospective plate 16c provided along the prospective plate 14n, which is the outer peripheral wall, is a member having a substantially U-shaped cross section. The reinforcing member 16 is fixed to the guide rail 14 by an iron rivet 72 on the inner side along the indoor side wall 14h of the guide rail 14 on the indoor side.

  Since the upper end side of the reinforcing member 16 is not curved like the curved portion 14 m of the guide rail 14, it is provided below the curved portion 14 m of the guide rail 14.

  As shown in FIGS. 1 and 3, the shutter box 50 includes a fixed plate portion 51 that is abutted above the sash window 20 on the wall surface on the outdoor side of the wall where the sash window 20 is provided and fixed to the housing. And the iron frame part 53 which has the left and right side wall parts 52 protruded from the both ends in the direction of finding the fixed plate part 51 to the outdoor side, and the shutter on which the shutter curtain 12 is mounted across the left and right side wall parts 52 And a shaft 54.

  The shutter box 50 is attached to the outdoor side portion of the left and right side wall portions 52 to form a space in which the shutter curtain 12 is accommodated together with the frame portion 53, and an iron decorative plate 55 (FIG. 1) covering the shutter box 50. Is attached.

  The left and right side wall portions 52 are each provided with a holding portion 52a of a shutter shaft 54 that protrudes in a direction facing each other.

  The shutter shaft 54 is provided on the outer peripheral side of the shaft portion 54a, the rotatable cylinder portion 54b that is rotatable, and the rotation cylinder portion 54b is rotated to wind and unwind the shutter curtain 12. A rotating mechanism (not shown) that can be used.

  The decorative plate 55 is disposed on the outdoor side of the frame portion 53 and is detachably fixed to the left and right side wall portions 52 with screws 70.

  The shutter curtain 12 is configured such that a plurality of slats 12a are connected side by side in the vertical direction with the longitudinal direction along the direction of finding, and the slats 12a are configured to be bendable at each connecting portion. Further, the upper end portion of the shutter curtain 12 is fixed along the axial direction of the shutter shaft 54 to the peripheral surface of the rotating cylinder portion 54b of the shutter shaft 54, and a seat plate 12c is provided at the lower end portion.

  At both ends of each slat 12a, a wind-resistant hook 12b having an L-shaped horizontal cross section is provided. The wind-resistant hook 12b is fixed with a rivet so as to protrude along the slats 12a in the finding direction, and an extended portion 12d extending to the indoor side is provided at the protruding tip. When the shutter curtain 12 is fixed to the shutter shaft 54 and both end portions of the shutter curtain 12 are accommodated in the open space 14d of the guide rail 14, the extended portion 12d is located on the far side of the open space 14d from the restricting piece 14j. It arrange | positions so that it may be located in. For this reason, when wind pressure acts on the shutter curtain 12 in the indoor / outdoor direction or an atmospheric pressure difference occurs inside / outside, even if the shutter curtain 12 is pulled in the expected direction, the extended portion 12d of the shutter curtain 12 is By engaging with the restricting piece 14j of the guide rail 14, a through hole is not formed.

  As shown in FIG. 4, the attachment 30 includes an outer wall abutting portion 31 as an locating piece that is in contact with the locating plate portion 14 k on the upper end side of the guide rail 14 and below the shutter box 50, and the shutter box. A hollow space 14e of the guide rail 14 is formed from the lower surface fixing portion 32 fixed to the side wall portion 52 together with the decorative plate 55 by the stainless steel screw 70 on the lower surface side of the 50 and the edge of the outer wall contact portion 31 in the direction of finding. The outer peripheral extending portion 33 is formed as a prospective piece extending so as to be close to or abutting the shutter vertical frame 17 along the prospective plate portion 14n. The lower surface fixing portion 32 is provided with a screw hole 32a through which the screw 70 passes.

  The attachment 30 is provided in the guide rail 14 when it is in contact with the finding plate portion 14k and the prospective plate portion 14n of the guide rail 14 and is fixed to the side wall portion 52 together with the decorative plate 55 on the lower surface side of the shutter box 50. The reinforcing member 16 is provided so as to overlap the expected direction. At this time, the overlap margin between the attachment 30 and the guide rail 14 is, for example, about 50 mm. That is, the attachment 30 is formed so as to overlap only the upper end portion of the reinforcing member 16 in the prospective direction, and is attached to the lower side of the shutter box 50 of the cut 14l formed in the guide rail 14 by attaching the attachment 30. It is comprised so that a site | part may be covered. Further, since the attachment 30 is attached, the end side of the opening portion of the shutter box 50 where the shutter curtain 12 moves up and down is covered, so that the curved portion 14m of the guide rail 14 accommodated in the shutter box 50 can also be seen. Disappear.

  The attachment 30 prevents the reinforcing member 16 from falling when the aluminum guide rail 14 is melted by exposure to heat due to a fire or the like. More specifically, when the attachment 30 is not provided, the guide rail 14 may melt when exposed to heat due to a fire or the like. At this time, since the upper side is particularly heated, it is easily melted from the upper side.

  When the guide rail 14 is melted from the upper side, the iron reinforcing member 16 provided inside the guide rail 14 loses support and easily falls to the outdoor side. When a force in the outdoor direction acts on the shutter curtain 12, the reinforcing member 16 is pushed outward by the shutter curtain 12 and the end of the shutter curtain 12 comes out of the reinforcing member 16, thereby forming a through hole. There is a risk of it.

  For this reason, the iron attachment 30 is fixed to the iron shutter box 50 with a stainless steel screw 70, and the iron attachment 30 is arranged between the iron reinforcing member 16 and the guide rail 14, that is, By arranging the iron reinforcing member 16 so as to overlap in the prospective direction, the attachment 30 prevents the reinforcing member 16 from falling down even if the guide rail 14 is melted.

  The attachment 30 extends along the prospective plate portion 14n that forms the hollow space 14e of the guide rail 14 from the edge of the outer wall contact portion 31 in the direction in which it is located, and its tip is close to or close to the aluminum shutter vertical frame 17. Since it has the outer periphery extension part 33 extended so that it may contact, it is comprised so that the fusion | melting of the prospective board part 14n of the guide rail 14 may also be suppressed.

  According to the shutter unit 10 of the present embodiment, since the reinforcing member 16 made of iron is provided in the aluminum guide rail 14 that guides the shutter curtain 12, the guide rail 14 is exposed to a flame and melted. Even if it is, the reinforcing member 16 remains. In addition, since the iron attachment 30 is disposed between the iron reinforcement member 16 and the guide rail 14, even if the guide rail 14 is melted by being exposed to a flame, the iron attachment 30 causes the reinforcement member to be melted. 16 falls are prevented. For this reason, since the reinforcing member 16 does not fall down and a gap is not formed between the shutter curtain 12 and the reinforcing member 16, it is possible to provide the shutter unit 10 having excellent fire resistance. Moreover, since the attachment 30 prevents the reinforcing member 16 from falling, the state of the reinforcing member 16 does not depend on the guide rail 14. For this reason, it is possible to reduce the number of rivets 72 that fix the guide rail 14 and the reinforcing member 16 as compared with the case where the attachment 30 is not provided. For this reason, by reducing the number of rivets 72, reducing the processing of the guide rails 14 and the reinforcing members 16, reducing the work of joining the guide rails 14 and the reinforcing members 16 with the rivets 72, etc., the cost can be reduced and the number of work steps can be reduced. Can be achieved.

  Further, the iron attachment 30 that prevents the fall of the reinforcing member 16 that restricts the movement of the shutter curtain 12 when the guide rail 14 is melted is fixed to the iron shutter box 50, so that the guide rail 14 is melted. Even so, the state in which the attachment 30 is disposed outside the reinforcing member 16 is maintained. For this reason, it is possible to provide the shutter unit 10 which is more excellent in fire resistance. At this time, since the attachment 30 only prevents the reinforcement member 16 from falling over, the attachment 30 only needs to have a portion overlapping the reinforcement member 16 in the prospective direction. For this reason, since the reinforcement member 16 may be small compared with the guide rail 14, it is possible to provide the shutter unit 10 which is inexpensive and more excellent in fire resistance.

  Further, since the attachment 30 includes the outer wall contact portion 31 that faces the finding plate portion 14k of the guide rail 14 and the outer peripheral extension portion 33 that faces the prospective plate portion 14n of the guide rail 14, even if the shutter Even if the unit 10 is exposed to a flame, the guide rail 14 is protected by the outer wall contact portion 31 and the outer peripheral extension portion 33, so that the melting of the guide rail 14 can be suppressed.

  In addition, since the attachment 30 is fixed to the shutter box 50 together with the decorative plate 55, the attachment 30 can be provided without increasing the number of fixing tools such as screws or fixing by attaching the attachment 30.

  The above embodiment is for facilitating the understanding of the present invention, and is not intended to limit the present invention. The present invention can be changed and improved without departing from the gist thereof, and it is needless to say that the present invention includes equivalents thereof.

  In the above embodiment, the guide rail is made of aluminum, and the reinforcing member, the shutter box, and the attachment are made of iron having a higher melting point than aluminum. However, the present invention is not limited to this. For example, the reinforcing member, the shutter box, and the attachment may be stainless steel, copper, titanium, or the like. The guide rail may also be other than aluminum.

  In the above-described embodiment, the attachment 30 has the outer peripheral extending portion 33 that extends along the prospective plate portion 14n of the guide rail 14 so that the tip is close to or in contact with the shutter vertical frame 17. However, the outer peripheral extension 33 does not necessarily have to be provided.

10 shutter units, 12 shutter curtains, 14 guide rails,
14a insertion part, 14k finding plate part, 14n prospecting plate part, 16 reinforcing member,
30 attachment, 31 outer wall abutting part, 33 outer peripheral extension part,
50 Shutter box, 55 Decorative plate

Claims (3)

A shutter curtain that can be raised and lowered;
A guide rail for guiding the raising and lowering of the shutter curtain;
A reinforcement member provided along the guide rail in the guide rail and reinforcing the guide rail;
A shutter box provided on an upper portion of the guide rail to wind up and accommodate the shutter curtain;
An attachment fixed to the shutter box and disposed between the reinforcing member and the guide rail,
The said reinforcing member, the said shutter box, and the said attachment are comprised with the member whose melting | fusing point is higher than the said guide rail, The shutter unit characterized by the above-mentioned. The shutter unit according to claim 1,
The guide rail includes an insertion portion in which an end portion of the shutter curtain is inserted on one side in the finding direction, a finding plate portion along the finding direction, and a prospecting plate portion along the prospecting direction on the other side in the finding direction, Have
The said attachment has a finding piece facing the said finding plate part, and a prospecting piece facing the said prospecting plate part, The shutter unit characterized by the above-mentioned. The shutter unit according to claim 1 or 2,
The said attachment is fixed to the said shutter box with the decorative board which covers the outer side of the said shutter box, The shutter unit characterized by the above-mentioned.

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