JP6009852B2 - Shutter frame lower end structure - Google Patents

Description

  The present invention relates to a lower end structure of a shutter frame portion.

  Window shutters cover windows that open in the building frame and are attached to the outer wall. Considering rust prevention and design, etc., parts made of aluminum or aluminum alloy or parts made of resin are often used. (See Patent Document 1). The shutter for a window has a shutter body attached above the window, and outer frames are attached to the left and right so as to sandwich the window from both sides of the shutter body. A guide rail is fixed inside each outer frame, and a shutter curtain is pulled out from the shutter body along the guide rail. In the window shutter, the lower end portions of the left and right outer frames are connected by a lower frame that is horizontally disposed below the window to form a shutter frame portion.

  In the shutter frame portion, a connection portion between the lower end portion of the outer frame and the end portion of the lower frame is a protruding corner portion. A cap (refer to Patent Document 2) or an end cap (refer to Patent Document 3) that serves as a guide for assembling the outer frame with respect to the lower frame may be attached to the protruding corner portion. is there.

JP 2008-45270 A JP-A-8-4438 JP 2009-256981 A

  However, since the shutter frame portion protrudes from the outer wall of the housing, for example, when the shutter for windows is applied to a waist-high window on the first floor, the protruding corner portion connecting the lower end portion of the outer frame and the lower frame end portion is a child. There is a risk of hitting the head. The outer frame and the lower frame are made of an aluminum extrusion-molded product, and the ends thereof are cut surfaces. In the above-mentioned corner portion, since the cut surfaces of the outer frame and the lower frame are combined, the safety is lowered. On the other hand, the above-mentioned cap (refer to Patent Document 2) and end cap (refer to Patent Document 3) may be attached to the protruding corner, but the purpose is to prevent damage during assembly and to guide when assembling the outer frame. Therefore, the safety of the protruding corner portion at the lower end of the shutter frame portion that is attached to protrude from the outer wall is not improved.

  The present invention has been made in view of the above situation, and its purpose is to ensure safety even when a person collides with the lower protruding corner even when the shutter frame protrudes from the outer wall with a waist-high window or the like. It is in providing the lower end structure of the shutter frame part with which it is ensured.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The lower end structure of the shutter frame portion 11 according to claim 1 of the present invention includes a pair of metal outer frames 31 provided on the outer sides of the left and right guide rails 35, and
A metal lower frame 39 connecting the outer frame lower ends 37 of the outer frames 31;
Left and right protruding corner portions 43 formed by connecting the outer frame lower end portion 37 and the lower frame end portion 41;
A synthetic resin cap member 61 that covers at least the outer frame lower end surface 63 and the lower frame end 41 in the protruding corner 43 and is fixed to the lower frame end 41 from the lower side in the vertical direction;
It is characterized by comprising.

  In the lower end structure of the shutter frame portion 11, when the outer frame lower end portion 37 and the lower frame end portion 41 are connected, the outer frame lower end surface 63 or the lower frame end surface 65, which is a cutting surface of the metal member, is projected. Expressed in part 43. In the protruding corner portion 43, a synthetic resin cap member 61 having a substantially flat plate shape is fixed to the lower surface side of the lower frame end portion 41, so that either the outer frame lower end surface 63 or the lower frame end surface 65 is exposed. Even if it comes out, the cut surface is covered with the cap member 61. Further, even when a metal decorative frame 45 is further attached to the outside of the outer frame 31 so as to cover the outer frame 31, the decorative frame lower end surface 71 is a cap member in the same manner as the outer frame lower end surface 63. 61.

Bottom structure according to claim 1, wherein the shutter frame portion 11 of the present invention is a lower structure of the shutter frame portion 11,
The cap member 61 and the lower frame end portion 41 are fixed by a heat releasable fixing member that softens and / or melts when heated to release the cap member 61 from being fixed.
In the structure according to claim 3, the heat releasing fixing member is formed of a metal screw having good thermal conductivity that passes through the lower frame end portion and fixes the cap member made of synthetic resin. It is characterized by that.
In the structure according to claim 4, the heat-releasing fixing member is formed of a metal tapping screw having good thermal conductivity that penetrates the lower frame end portion and fixes the cap member made of synthetic resin. A fixed cylinder portion is formed to protrude from the bottom of the penetrating portion of the cap member made of synthetic resin, through which the heat releasable fixing member passes, and the heat releasable fixing member is provided through the hole of the fixed cylinder portion. It is characterized by that.

  In the lower end structure of the shutter frame portion 11, when the cap member 61 attached to cover the cut surface of the protruding corner portion 43 is heated by a fire, the heat release that fixes the cap member 61 to the lower frame 39 is performed. The fixing member releases the fixing of the cap member 61. The cap member 61 released from the fixing by the heat releasing fixing member falls from the lower frame 39 by its own weight.

The lower end structure of the shutter frame portion 11 according to claim 2 of the present invention is the lower end structure of the shutter frame portion 11 according to claim 1 ,
The heat releasable fixing member passes through the lower frame end 41 from above and fixes the cap member 61.

  In the lower end structure of the shutter frame portion 11, for example, a metal screw 73 that penetrates the lower frame end portion 41 from above the lower frame 39 and is screwed into the cap member 61 can be suitably used as the heat release fixing member. It becomes. That is, the screw 73 has good thermal conductivity, becomes high temperature due to heat at the time of fire, and heats the screwing portion 75 with the cap member 61. In the screw portion 75 made of synthetic resin, the screw thread is softened by heating from the screw 73, and the load resistance of the screw portion 75 is lower than the weight of the cap member 61, so that the cap member 61 is fixed. The

  According to the lower end structure of the shutter frame portion according to the first aspect of the present invention, the shutter frame portion protrudes from the outer wall by a waist high window or the like, and even if a person collides with the lower protruding corner portion, an injury is caused. Safety can be improved.

According to the lower end structure of the shutter frame portion according to the first to fourth aspects of the present invention, the cap member is dropped because the cap member is dropped by releasing the fixing by the heat releasing fixing member by the heat at the time of the fire. Combustion, that is, the occurrence of a flame can be avoided in the state where it is left, and the spread of fire can be suppressed.

According to the lower end structure of the shutter frame portion according to the second aspect of the present invention, the cap member is screwed from the upper side of the lower frame using a metal screw having good heat conduction as the heat releasing fixing member, and is simplified. The cap member can be dropped by softening and / or melting the screwed portion with the cap member with a simple structure.

It is a whole perspective view of the shutter for windows provided with the lower end structure of the shutter frame part which concerns on this invention. FIG. 2 is a partially omitted vertical sectional view of the window shutter shown in FIG. 1. It is a longitudinal cross-sectional view of the lower end structure of a shutter frame part. It is a plane sectional view of the lower end structure of a shutter frame part. (A) is a top view of a cap member, (b) is a right side view, (c) is a lower side view, (d) is an AA sectional view, and (e) is a BB sectional view. It is the perspective view which looked at the protruding corner part to which the cap member was attached from the bottom. FIG. 7 is an exploded perspective view of FIG. 6. It is a disassembled perspective view explaining the attachment method of a protrusion corner part reinforcement member. It is a disassembled perspective view explaining the attachment method of a cap member. It is a disassembled perspective view of the lower end structure concerning the modification in which a different heat-releasing fixing member is used.

Embodiments according to the present invention will be described below with reference to the drawings.
1 is an overall perspective view of a window shutter having a lower end structure of a shutter frame portion according to the present invention, FIG. 2 is a partially omitted vertical sectional view of the window shutter shown in FIG. 1, and FIG. 3 is a lower end of the shutter frame portion. FIG. 4 is a plan sectional view of the lower end structure of the shutter frame portion, FIG. 5A is a plan view of the cap member, FIG. 4B is a right side view, and FIG. 4C is a lower side view. d) is an AA cross-sectional view, (e) is a BB cross-sectional view, and FIG. 6 is a perspective view of a protruding corner portion to which a cap member is attached as viewed from below.
The lower end structure of the shutter frame 11 according to the present embodiment can be suitably used for a window shutter device 17 that opens and closes a building opening 15 (see FIG. 2) using, for example, a shutter curtain 13. The window shutter device 17 is attached to, for example, the outside of a sash window 19 (see FIG. 2) constituting a window portion of a house.

  In the window shutter device 17, a storage portion 21 is attached above the building opening 15. The storage unit 21 stores the shutter curtain 13 and the winding device. The shutter curtain 13 can be a panel shutter or a resin sheet shutter curtain 13 in addition to a general shutter curtain 13 in which a plurality of aluminum or steel slats are connected. The shutter curtain 13 has a draining slat 23 (see FIG. 2) at the forefront of the operation direction, that is, at the lower end when fully closed.

  In the window shutter device 17, a pair of steel side brackets 29 are fixed to a vertical member 27 such as a pillar, which is a building housing 25. Bearing fittings are fixed to the inner sides of the respective side brackets 29 (see FIG. 2), and the bearing fittings support both ends of the winding shaft. A winding wheel is rotatably supported on the winding shaft, and the winding wheel fixes a suspension base that is a rear end of the shutter curtain 13 in the operation direction.

  A pair of outer frames 31 made of aluminum alloy are fixed to the left and right of the storage portion 21 and hang down. The outer frame 31 is provided so as to protrude from the outer wall 33 (see FIG. 2) with the sash window 19 in between. As shown in FIG. 7, guide rails 35 are fixed inside each outer frame 31. Outer frame lower end portions 37 of the pair of hanging outer frames 31 are connected by an aluminum alloy lower frame 39. The lower frame 39 abuts on the upper end of a trunk edge (not shown). The surface of the trunk edge is covered with an outer wall finishing material. Therefore, the connection part of each outer-frame lower end part 37 and lower-frame edge part 41 becomes the protruding corner part 43 (refer FIG. 4), and protrudes from the outer wall 33 at two places right and left.

  In the present embodiment, the outside of each outer frame 31 is further covered with a decorative frame 45 made of aluminum alloy. The decorative frame 45 covers the front plate 49 of the lower frame 39 with a decorative frame lower end 47 (see FIG. 7). The outer frame 31 provided outside the pair of guide rails 35, the decorative frame 45 provided outside each outer frame 31, and the lower frame 39 that connects the outer frame lower end portions 37 of the pair of outer frames 31. A frame portion 11 is configured.

  The protruding corner portion 43 is covered from the outside by a steel protruding corner portion reinforcing member 51 (see FIG. 8). The protruding corner portion reinforcing member 51 rises from the bottom plate portion 53 that contacts the lower surface of the lower frame 39, the upright plate portion 55 that stands up and bends from the bottom plate portion 53 and is parallel to the outer frame 31, and the bottom plate portion 53. And a front piece 57 that is bent and comes into contact with the front face of the lower frame 39. In the protruding corner portion reinforcing member 51 that covers the protruding corner portion 43, the bottom plate portion 53 is fixed to the lower frame end portion 41 by a rivet 59 (see FIG. 8).

  A cap member 61 (see FIG. 8) made of synthetic resin, for example, nylon resin, is fixed to the outside of the protruding corner reinforcing member 51. That is, as shown in FIG. 7, the cap member 61 covers the outer frame lower end surface 63 and the lower frame end surface 65 at the protruding corner portion 43 and is fixed to the lower frame end portion 41 from the lower side in the vertical direction. As shown in FIG. 5, the cap member 61 has a rectangular cap body plate 67 that is inclined forward in the water flow direction along the lower frame 39. A covering portion 69 is formed on the two adjacent side portions on the projecting corner side of the cap body plate 67 so as to project an L-shaped groove. The covering portion 69 has a decorative frame lower end surface 71 ( Cover the edges including (see FIG. 7).

  Normally, the resin component has an assembled structure in which a claw or the like is engaged with or fitted into the lower frame 39 or the like, and has an assembled structure that does not easily come off and does not easily come off. Does not have such a shape. That is, it is set as the structure which is not fitted, and is fixed by the structure which a substantially flat member simply covers.

  The cap member 61 and the lower frame end portion 41 are fixed by a heat releasable fixing member that softens and / or melts when heated to release the cap member 61 from being fixed. The heat-releasing fixing member passes through the lower frame end 41 from above and fixes the cap member 61.

  In the present embodiment, the heat releasing fixing member is made of a metal screw 73 shown in FIG. The screw 73 is screwed and fixed to the screwing portion 75 of the cap member 61. The threaded portion 75 of the cap member 61 includes a fixed cylinder portion 79 that has a pilot hole 77 and is suspended from the cap body plate 67. As shown in FIG. 3, the screw 73 is used so that the axial direction is the vertical direction, and when the cap member 61 falls, it does not become as resistant as possible and does not get caught. As the screw 73, for example, a tapping screw is used. The tapping screw is screwed into the pilot hole 77 of the screwing portion 75 with a predetermined torque, so that the screw is screwed in. The cap body plate 67 of the cap member 61 is provided with a through hole 81 so that the through hole 81 can avoid interference with the rivet 59 used when the protruding corner portion reinforcing member 51 is fixed.

Next, the operation of the lower end structure of the shutter frame portion 11 having the above configuration will be described.
FIG. 7 is an exploded perspective view of FIG. 6, FIG. 8 is an exploded perspective view for explaining a method for attaching the protruding corner reinforcing member 51, and FIG. 9 is an exploded perspective view for explaining a method for attaching the cap member 61.
As shown in FIG. 7, in the lower end structure of the shutter frame portion 11, when the outer frame lower end portion 37 and the lower frame end portion 41 are connected, the outer frame lower end surface 63 that is a cutting surface of the metal member or the lower frame The frame end surface 65 is exposed at the protruding corner portion 43. A protruding corner reinforcing member 51 is fixed to the protruding corner 43 from below by a rivet 59 shown in FIG.

  As shown in FIG. 9, a cap member 61 is further fixed to the protruding corner 43 to which the protruding corner reinforcing member 51 is fixed, from below the protruding corner reinforcing member 51. In the protruding corner portion 43, the synthetic resin cap member 61 having a substantially flat plate shape is fixed to the lower surface side of the lower frame end portion 41, so that either the outer frame lower end surface 63 or the lower frame end surface 65 is exposed. Even so, the cut surface is covered by the cap member 61. When the steel protruding corner reinforcing member 51 is attached as in the present embodiment, the protruding corner reinforcing member 51 is also covered with the cap member 61.

  Further, even when a metal decorative frame 45 is further attached to the outside of the outer frame 31 so as to cover the outer frame 31, the decorative frame lower end surface 71 is a cap member in the same manner as the outer frame lower end surface 63. 61. The protruding corner portion 43 is covered with the cap member 61, and thus works to prevent rattling in the assembled state of the lower frame 39, the outer frame 31, and the decorative frame 45.

  In the lower end structure of the shutter frame portion 11, when the cap member 61 attached so as to cover the cut surface of the protruding corner portion 43 is heated by a fire, the heat release property that fixes the cap member 61 to the lower frame 39. The fixing member releases the fixing of the cap member 61. The cap member 61 released from the fixing by the heat releasing fixing member falls from the lower frame 39 by its own weight. Thus, the lower end structure of the shutter frame portion 11 releases the fixing by the heat releasing fixing member by the heat at the time of the fire, drops the cap member 61, and burns with the cap member 61 attached. That is, it is possible to avoid the spread of fire.

  If the cap member 61 continues to burn while being attached to the shutter frame portion 11, there is a risk that fire enters and exits from the gap between the members, for example, from the outside to the inside of the room or from the inside to the outside of the room. According to the cap member 61, the fire falls from either fire or heat, so that it is possible to suppress the spread of fire from the opening.

  As the heat-releasing fixing member, for example, a metal screw 73 that passes through the lower frame end 41 from above the lower frame 39 and is screwed into the cap member 61 can be suitably used. The screw 73 has good thermal conductivity, becomes high temperature due to heat in the event of a fire, and heats the screwed portion 75 (see FIG. 6) with the cap member 61. In the screw portion 75 made of synthetic resin, the screw thread is softened by heating from the screw 73, and the load resistance of the screw portion 75 is lower than the weight of the cap member 61, so that the cap member 61 is fixed. The Thereby, the cap member 61 is screwed from the upper side of the lower frame 39 using the metal screw 73 having good heat conduction as the heat releasing fixing member, and the screwed portion 75 with the cap member 61 is formed with a simple structure. The cap member 61 can be dropped by melting.

  According to the lower end structure of the shutter frame portion 11 according to the present embodiment, even if the shutter frame portion 11 protrudes from the outer wall 33 by a waist high window or the like and a person collides with the lower protruding corner portion 43, an injury is caused. It is possible to improve safety without incurring the burden.

FIG. 10 is an exploded perspective view of a lower end structure according to a modification in which different heat-releasing fixing members are used.
In the above embodiment, the case where the heat-releasing fixing member is the screw 73 has been described as an example. However, the lower end structure of the shutter frame portion 11 according to the present invention is a composite shown in FIG. 10 as the heat-releasing fixing member. A resin fastener 83 may be used. By fixing the cap member 61 through the fastener 83, the fastener 83 can be dissolved directly and the cap member 61 can be dropped. According to the fastener 83, the cap member 61 can be easily attached to the lower frame 39. In addition, as the heat releasable fixing member, a screw made of a synthetic resin, a locking claw structure, or the like that can release the fixing of the cap member 61 by being directly dissolved in the same manner as the fastener 83 may be used.

DESCRIPTION OF SYMBOLS 11 ... Shutter frame part 31 ... Outer frame 35 ... Guide rail 37 ... Outer frame lower end part 39 ... Lower frame 41 ... Lower frame end part 43 ... Outer corner part 61 ... Cap member 63 ... Outer frame lower end surface 73 ... Heat release fixed Member (screw)

Claims (4)

A pair of metal outer frames provided on the outer sides of the left and right guide rails;
A metal lower frame connecting the lower ends of the outer frames of the outer frames;
Left and right protruding corners formed by connecting the outer frame lower end and the lower frame end; and
A cap member made of synthetic resin that covers the lower end surface of the outer frame and the lower frame end at the protruding corner and is fixed to the lower frame end from the lower side in the vertical direction;
The shutter member is characterized in that the cap member and the lower frame end are fixed by a heat releasable fixing member that melts when heated and releases the fixing of the cap member. The lower end structure. The lower end structure of the shutter frame portion according to claim 1 ,
The lower end structure of the shutter frame part, wherein the heat releasing fixing member penetrates the lower frame end part from above and fixes the cap member. The lower end structure of the shutter frame portion according to claim 1,
The shutter frame part, wherein the heat releasing fixing member is formed of a metal screw having good thermal conductivity for fixing the cap member made of synthetic resin through the lower frame end. The lower end structure. The lower end structure of the shutter frame portion according to claim 1 ,
The heat releasable fixing member is formed of a metal tapping screw having good heat conductivity that penetrates the lower frame end portion and fixes the cap member made of synthetic resin, and the heat releasable fixing member penetrates. A shutter frame portion characterized in that a fixed cylinder portion projects from a bottom portion of the through portion of the cap member made of synthetic resin, and a heat release fixing member is provided through the hole of the fixed cylinder portion. The lower end structure.

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