JP2018168619A - Reinforcement structure of lower frame of window shutter - Google Patents

Abstract

To improve the fireproof performance of a lower frame of a window shutter.SOLUTION: A lower frame 6 of a window shutter includes a recess 600 for receiving a seat plate 51 of a lower end of a shutter curtain 5 and base end side portions (upper side 60, lower side 64). A lower end of a guide rail underlying frame 2 is close to the upper side 60 and the guide rail underlying frame 2 has first surfaces (sides 21, 22) extending in a first direction and a second surface (bottom side 20) extending in a second direction. A connecting member 8 connecting the lower frame 6 and the guide rail underlying frame 2 includes a first vertical plate-like portion 81 fixed to the side 21, a second vertical plate-like portion 82 fixed to the bottom side 20, and a horizontal plate-like portion 80 close to the upper side 60. The horizontal plate-like portion 80 and an indoor side portion of the lower frame 6 are fixed by screws 9.SELECTED DRAWING: Figure 4

Description

The present invention relates to a reinforcement structure for a lower frame of a window shutter, and the reinforcement structure functions as a fire prevention structure for a lower frame of the window shutter when the window shutter is used as a fire prevention shutter.

In order to provide fire protection performance to the lower frame of the window shutter, for example, a recess is provided in the lower frame of the window shutter to receive the lower part of the seat plate at the lower end of the shutter curtain when the window opening is fully closed. Sometimes, an unfavorable space for fire and smoke prevention that directly penetrates the interior and the exterior is not formed between the lower frame and the lower part of the seat plate.

For window shutters that require fire prevention performance, it is desirable that fire resistance performance be maintained for a longer period of time in order to ensure a longer evacuation time and to prevent the spread of fire as much as possible. When a fire occurs on the outside of the door in the fully closed state of the window opening, the outdoor part and bottom surface of the lower frame are heated by the heat at the time of the fire, and the outdoor part is There is a risk of dripping and deforming. Due to such deformation of the lower frame, there is a risk that a disadvantageous space for fire and smoke prevention that penetrates the interior and exterior of the seat plate is formed between the lower part of the seat plate and the lower frame.

The inventors of the present invention have provided the reinforcing plate material along the front and lower surfaces of the outdoor side of the lower frame, thereby reinforcing the lower frame to prevent the lower frame from falling down and being closed by the window shutter. It has been proposed to improve the fire prevention performance of the lower part of the window opening (Patent Document 1).

The present inventors further studied to suppress the lower frame from falling down due to heating without using the reinforcing plate material. If the reinforcing plate can be eliminated, the number of parts for constructing the reinforcement structure of the lower frame can be reduced, and the manufacturing cost (manufacturing effort and material cost) of the reinforcing plate can be reduced, and the reinforcing plate can be attached. Therefore, the processing of the lower frame and the trouble of attaching the reinforcing plate material to the lower frame can be saved, and the number of processing steps for the reinforcing structure of the lower frame can be reduced. Therefore, it becomes a subject how to suppress the fall of the said lower frame by the heating of the lower frame at the time of a fire, without depending on a reinforcement board | plate material.
Japanese Patent No. 5785039

An object of the present invention is to improve the fireproof performance of the lower frame of the window shutter by proposing a reinforcement structure of the lower frame having a simpler configuration.

The technical means adopted by the present invention are:
The lower frame of the window shutter is connected to the lower part of the left and right side frames of the window shutter using a connecting member,
The side frame includes a first surface and a second surface extending in a height direction, and a lower end of the side frame is close to or at least partially in contact with the lower frame,
The connecting member includes a first portion fixed to the first surface of the side frame, a second portion fixed to the second surface, and a third portion extending along a lower end of the side frame. Have
The third portion of the connecting member and the lower frame are fixed.
This is a reinforcing structure of the lower frame of the window shutter.
In one aspect, the side frame and the connecting member are fixed by a fastening member, and the connecting member and the lower frame are fixed by a fastening member.
Examples of the fastening member include a screw (including a bolt) and a rivet. In the embodiment described later, the side frame and the connecting member are fixed by a rivet, and the connecting member and the lower frame are fixed by a screw. .
In one aspect, the lower frame is supported on the base end side so as to be taken out to the outdoor side, and a recess for receiving the lower part of the seat plate at the lower end of the shutter curtain in a fully closed state of the window opening, and the base end side of the recess A proximal end portion located at
The lower end of the side frame is close to or at least partially in contact with the upper surface of the proximal side part,
The lower frame is connected to a lower part of the side frame using a connecting member,
The third portion of the connecting member and the base end side portion of the lower frame are fixed.

In one aspect, the first surface and the first portion extend in a first direction, and the second surface and the second portion extend in a second direction.
In one aspect, the said 1st direction and the said 2nd direction are extended in the planar view right angle shape.
In one aspect, the first direction is a look direction, the second direction is a find direction, the first portion extends in the look direction, and the second portion extends in the find direction.
In one aspect, at least one of the first surface and the first portion, the second surface and the second portion extends in the expected direction.
In one aspect, the first surface and the first portion extend in the expected direction, and the second surface and the second portion extend in the found direction.
In one aspect, both the first surface and the first portion, and the second surface and the second portion extend in the expected direction.
In one aspect, the first surface and the second surface are vertical surfaces, and the first portion and the second portion include a vertical surface.
In one aspect, the first portion is in surface contact with the first surface, and the second portion is in surface contact with the second surface.
In one aspect, the said side frame is provided with the 3rd surface (The surface of the side 22 in the aspect of FIG. 7 mentioned later, or the surface of the side 21 'in the aspect of FIG. 12) extended in a height direction. The connecting member may include a fourth portion (a third vertical plate-like portion to be described later) fixed to the third surface.
In one aspect, the third portion has a horizontal surface.
In one aspect, the third portion is close to or at least partially in contact with the upper surface of the base end side portion of the lower frame.

In one aspect, the proximal end side portion includes the upper surface and a lower surface that is spaced apart below the upper surface,
The third portion of the connecting member is fixed to a female screw provided on the lower surface by a screw passing through the third portion and the upper surface.
In one aspect, the height of the front surface of the recess (the outdoor surface of the outdoor vertical side 63 in the embodiment described later) is higher than the upper surface of the base end side portion, and the lower end of the side frame is higher than the upper end of the front surface. Located in a lower position and higher than the upper surface.
In one aspect, the connecting member is formed of a material having a higher melting point than the material forming the lower frame and the side frame.

In the present invention, the lower frame supported in the form of a take-out on the outdoor side is connected to the side frame via a connecting member fixed to a lower part of the side frame at a plurality of locations, and the lower frame is connected by the connecting member. It will be supported or suspended by the side frame at a plurality of locations, and the connecting member can counteract the force of deformation or rotation so that the outdoor part of the lower frame hangs downward, and the reinforcing plate is attached to the lower frame. Without being provided, it prevents thermal deformation of the lower frame due to heat at the time of a fire (for example, it is thermally deformed and falls down so as to hang down outside or below the room).
Since the side frame (guide rail base frame) is fixed to the lower frame on a plurality of surfaces by connecting members, it is possible to counteract the forces acting on the side frame by reinforcing the side frame, which is disadvantageous in terms of fire prevention. Prevents the frame (guide rail base frame) from opening and tilting.

It is the schematic front view and side view of a window shutter apparatus. It is a longitudinal cross-sectional view of a window shutter apparatus. It is the elements on larger scale of FIG. 2, and is a longitudinal cross-sectional view of the downward part of a window shutter apparatus. It is one horizontal sectional view of the opening width direction of a window shutter apparatus. It is a figure which shows the connection structure of a side frame and a lower frame. It is a figure which shows the connection structure of a side frame and a lower frame. It is a figure which shows the connection structure of the connection member with respect to a side frame. It is a figure which shows the connection member which concerns on this embodiment. It is a figure which shows a lower frame single-piece | unit, (A) is a side view, (B) is a top view in order from the top, the rear view seen from the indoor side, and a bottom view. It is a figure which shows a lower frame assembly, and is a top view in order from the top, a rear view seen from the indoor side, and a bottom view. (A) is a side view of a lower frame assembly, (B) is a figure which shows the cap with which the side edge part of a lower frame is mounted | worn. It is a top view which shows the other connection structure of the side frame and lower frame using the connection member which concerns on other embodiment. It is a figure which shows the connection member which concerns on other embodiment.

In FIG. 1, the left figure is a front view of the window shutter device viewed from the outdoor side, and the right figure is a side view of the window shutter device. FIG. 2 is a longitudinal sectional view of the window shutter device in a fully closed state of the window opening, and the window shutter device is provided outside the window device installed in the window opening of the building. The window shutter device is located above the window opening and is attached to the outer wall W in a take-out manner, and is located on both sides in the width direction of the window opening and attached to the window device in a take-out manner. The left and right guide rail base frames 2, the left and right guide rails 3 supported by the left and right guide rail base frames 2, the winding shaft 4 provided in the shutter case 1, and the upper end are connected to the winding shaft 4. And a shutter curtain 5 that opens and closes the outdoor portion of the window opening by being wound up / rolled out by the winding shaft 4 while being guided by the guide rail 3 at both ends in the width direction, and the window opening And a lower frame (draining plate) 6 attached to the window device in a take-out shape. The window shutter device may be a so-called sash-integrated window shutter. In this case, the frame of the window sash constitutes the guide rail base frame, and the outdoor portion of the lower frame of the window sash constitutes the lower frame (draining plate) of the window shutter. In the present specification, the expressions “outside of room” and “inside of room” mean not only the actual outside of room and inside of room but also used to specify the relative position of components. Please note that. The “indoor / outdoor direction” is a direction orthogonal to the opening width direction which is the width direction of the building opening. The opening width direction is the direction in which the side frame (guide rail base frame 2, guide rail 3) is found, and the indoor / outdoor direction is the direction in which the side frame (guide rail base frame 2, guide rail 3) is expected.

The guide rail 3 is formed of an aluminum mold and is a long member extending perpendicularly to the height direction of the window opening. The side rail 30 and a side edge 31 positioned on the outdoor side with respect to the side edge 30 The base 32 has a substantially U-shape in plan view or cross-sectional view. The side edges 30 and 31 extend in the direction of finding, and the bottom side 32 extends in the expected direction. A guide groove is formed between the opposing sides 30 and 31 to receive both ends in the width direction of the shutter curtain 5 and guide it in the vertical direction. The guide rail 3 has a height corresponding to the overall height of the opening, and extends vertically from the upper side 60 of the lower frame 6 until reaching the shutter case 1. The upper end portion of the guide rail 3 is formed in an expanded shape and extends into the lower portion of the shutter case 1. As shown in FIG. 4, a mounting piece 33 is formed so as to extend from the side 30 of the guide rail 3 toward the indoor side, and the bottom side of the side 31 extends beyond the bottom 32 and away from the opening. An extending portion 310 is formed, and an attachment piece 35 is formed on a bent side 34 formed by bending the distal end of the extending portion 310 to the indoor side.

The guide rail base frame 2 is formed of an aluminum mold, is a long member extending perpendicularly to the height direction of the window opening, has a height corresponding to the entire height of the opening, and has an upper side 60 of the lower frame 6. To the shutter case 1 to extend vertically. As shown in FIGS. 4 and 7, the guide rail base frame 2 includes a base 20 on the indoor side, a side 21 extending from one end of the base 20 (side close to the opening) toward the outdoor side, And a side 22 extending from the other end (side far from the opening) toward the outdoor side. The bottom side 20 extends in the direction of finding, and the side sides 21 and 22 extend in the direction of expectation. The distal end side of the side 21 is curved toward the opening, and an attachment piece 23 is formed from the curved portion toward the outdoor side. An attachment piece 24 is formed at the tip portion of the side 22. By attaching the attachment pieces 33 and 35 of the guide rail 3 to the attachment pieces 23 and 24 of the guide rail base frame 2, the guide rail 3 is attached to the distal end side of the guide rail base frame 2. In the illustrated embodiment, the mounting piece 35 of the guide rail 3 and the mounting piece 23 of the guide rail base frame 2 face each other with the mounting piece 35 of the guide rail 3 locked to the mounting piece 24 of the guide rail base frame 2. They are brought into contact with each other and overlapped and fixed with screws 36.

As shown in FIG. 4, the inner space of the guide rail 3 is provided with a reinforcing plate 7 having a substantially U-shaped cross-sectional view along the inner wall, thereby improving the fire resistance of the guide rail 3 formed of an aluminum mold. I am letting. The reinforcing plate 7 is a long member that is formed of a metal plate having a higher melting point than aluminum, such as a steel plate, and extends perpendicularly to the height direction of the window opening. In addition, the inner surface of the side 30 of the guide rail 3 accommodates a flame-retardant thermal expansion refractory member (not shown) located in the pocket portion P1 on the opening side of the internal space and extending in the height direction. Also good.

As shown in FIG. 1, the shutter curtain 5 is formed by connecting long plate-like slats 50 having a predetermined height and extending in the opening width direction so as to be rotatable in the height direction. . An upper end of the shutter curtain 5 is connected to the winding shaft 4, and a seat plate 51 is provided at the lower end portion of the shutter curtain 5. In FIG. 2, the upper seat plate 51 indicates the height position when the window opening is fully opened, and the lower seat plate 51 indicates the height position when the window opening is fully closed. When the window opening is fully open, the shutter curtain 5 is wound around the winding shaft 4. A stopper 515 provided on the outdoor side of the seat plate 51 contacts the lintel 515A above the opening. When the window opening is fully closed, the lower end (contact portion 512) of the seat plate 51 contacts the bottom side 62 of the recess 600 of the lower frame 6 (see FIG. 3). The slat 50 has a width dimension such that both ends in the length direction extend into the internal space of the guide rail 3, and when the shutter curtain 5 is raised and lowered and when the window opening is fully closed, both end portions in the width direction of the slat 50 are provided. Is received in the internal space of the guide rail 3.

As shown in FIG. 3, the seat plate 51 includes a long and vertical plate-like portion 510 extending in the width direction of the window opening, and the upper end of the plate-like portion 510 is engaged with the lower end of the slat 50 directly above. A mating engaging portion 511 is integrally formed, and a lower end portion of the plate-like portion 510 is curved inward to form an abutting portion 512. An indoor side piece 513 extending in the width direction of the plate-like portion 510 is formed in the lower half of the plate-like portion 510 of the seat plate 51. The indoor side piece 513 has an L shape in side view from a first piece 5130 that extends horizontally from the indoor side surface toward the indoor side and a second piece 5131 that hangs down from the front end of the first piece 5130 on the indoor side. ing. The lower end of the second piece 5131 is thicker than other portions of the indoor side piece 513 and has a curved surface as a whole. The end portion in the opening width direction of the indoor side piece 513 does not reach the guide rail 3, and both end portions in the opening width direction of the plate-like portion 510 are received in the guide rail (see FIG. 4). On the indoor side surface of the plate-like portion 510, a pocket portion P2 is formed below the indoor side piece 513. In one aspect, the pocket part P2 accommodates a flame-retardant thermal expansion fire-resistant member (not shown) that extends in the length direction of the seat plate 51. Note that the thermal expansion refractory member may be provided at another location, for example, the indoor side surface portion of the plate-like portion 510 located above the pocket portion P2 or the lower surface of the first piece 5130.

A latch bar accommodating portion 514 is formed on the indoor side surface portion of the plate-like portion 510 and is positioned above the indoor-side piece 513 and extends horizontally over the length direction of the seat plate 51 (plate-like portion 510). Two latch bars (not shown) are accommodated in the latch bar accommodating portion 514 so as to be movable in the length direction. A stopper 515 is provided on the outdoor side surface portion of the plate-like portion 510 at both ends in the width direction and outside the guide rail 3, and when the opening is opened, the horizontal upper surface of the stopper 515 is above the opening. It abuts on the hook portion 515A (see FIG. 2).

The lower frame 6 of the window shutter is a long frame body that is positioned below the window opening and extends in the width direction of the opening, and extends over the entire width of the window opening so that the guide rail base frame 2 and the guide rail 3 It extends down. As shown in FIGS. 2 and 3, the lower frame 6 is supported on the outer wall W so as to be brought out. In the present embodiment, as will be described later, the lower frame 6 is supported by the lower frame 15 of the window device at the support portion (upper mounting piece 66, lower mounting piece 67) on the base end side. As shown in FIG. 9, the lower frame 6 includes a hollow base end portion having an upper side 60 that forms a draining surface, and a recess 600 formed on the outdoor side with respect to the hollow base end portion. ,have. The recess 600 is located immediately below the lifting path of the shutter curtain 5 and reaches the lower part of the guide rail 3 beyond the entire width of the window opening. In the recess 600, the lower part of the seat plate 51 at the lower end of the shutter curtain 5 is received when the window opening is fully closed. As shown in FIG. 3, a portion of the plate-like portion 510 of the seat plate 51 below the indoor side piece 513 extends into the recessed portion 600 when the window opening is fully closed. Since the lower part of the seat plate 51 is received in the recess 600, even if a gap is formed between the lower end of the seat plate 51 and the bottom surface of the recess 600, a space that linearly communicates with the indoor side is formed. Not.

More specifically, as shown in FIG. 9 (A), the lower frame 6 includes an upper side 60 that extends gently in a downwardly inclined manner toward the outdoor side, and an indoor vertical that hangs down from the tip of the upper side 60 on the outdoor side. A side 61, a bottom 62 extending gently downward from the lower end of the indoor vertical side 61 toward the outdoor side, and an outdoor vertical side 63 rising vertically from the outdoor front end of the base 62; A lower side 64 extending horizontally from the lower end of the inner vertical side 61 toward the indoor side, a rear side 65 connecting the upper side 60 and the indoor side ends of the lower side 64, and an upper side formed extending from the rear side 65 to the indoor side A mounting piece 66 and a lower mounting piece 67 are provided. The rear side 65 is formed in a stepped shape from a first vertical portion 650 on the outdoor side and a second vertical portion 651 on the indoor side. The shape of the lower frame 6 shown in the figure is an example, and the shape and configuration of the lower frame 6 to which the present invention is applied are not limited to those shown in the drawing. For example, the base 62 may be integrated with the lower side 64 and extend in the horizontal direction. For example, the illustrated lower frame 6 is integrally formed from one member, but the lower frame may be formed from a combination of a plurality of members. For example, you may form the base end side site | part (with the upper side 60) of the lower frame 6 from another member. As shown in FIGS. 9B and 10, the lengthwise ends of the upper mounting piece 66 and the lower mounting piece 67 do not reach the lengthwise ends of the lower frame 6. It does not extend to the part located below 2. As shown in FIG. 9B, holes 60A and 64A for the screw 9 are formed in the vertical direction at both ends in the longitudinal direction of the upper side 60 and the lower side 64, respectively.

The upper part of the space between the indoor vertical side 61 and the outdoor vertical side 63 is open, and a recess 600 is formed from the outdoor vertical side 63, the indoor vertical side 61, and the bottom 62. ing. A hollow proximal end portion is formed from the upper side 60, the indoor side vertical side 61, the lower side 64, and the rear side 65. The rising dimension of the outdoor vertical side 63 is larger than the rising dimension of the indoor vertical side 61, that is, the height position of the upper side 60 of the base end side part is higher than the height position of the upper end 630 of the outdoor vertical side 63. Is also in a low position.

The lower ends of the guide rail base frame 2 and the guide rail 3 coincide with each other, and the position of the lower end of the side frame (the guide rail base frame 2 and the guide rail 3) is higher than the upper side 60 of the lower frame 6 and the outdoor vertical side. It is located below the upper end of 63. The side frames of the window shutter, that is, the lower ends of the guide rail base frame 2 and the guide rail 3 extend below the upper end of the outdoor vertical side 63 and reach the upper side 60. In the illustrated embodiment, the upper side 60 is an inclined surface that gently slopes downward from the indoor side toward the outdoor side, and the lower end (horizontal shape) of the side frame (guide rail base frame 2) is the base end side portion of the upper side 60. (See FIGS. 3, 5, and 6).

As shown in FIG. 4 and the like, the lower frame 6 connects the connecting member 8 fixed to the lower end portion of the guide rail base frame 2 to the lower frame 6 using screws 9, thereby It is connected to the lower end part. The connecting member 8 is fixed to the guide rail base frame 2 from two directions by rivets 10. The connecting member 8 is made of a metal material, for example, a steel plate, having a higher melting point and higher strength against heat than the aluminum mold forming the guide rail base frame 2.

As shown in FIG. 8, the connecting member 8 includes a substantially rectangular horizontal plate-shaped portion 80, a first vertical plate-shaped portion 81 that rises vertically from the first side of the horizontal plate-shaped portion 80, and the horizontal plate-shaped portion 80. A second vertical plate-like portion 82 that rises perpendicularly from a second side (a side adjacent to the first side and extending at right angles to the first side), and the first vertical plate-like portion 81 The second vertical plate-like portions 82 extend at right angles to each other in plan view. In the illustrated embodiment, the first side is a short side and the second side is a long side. The horizontal plate-like portion 80 is formed with a long hole 800 exemplified as an insertion hole for the screw 9 for fixing the connecting member 8 to the lower frame 6. Holes 810 and 820 for mounting the rivets 10 for fixing the connecting member 8 to the guide rail base frame 2 are formed in the upper portions of the first vertical plate portion 81 and the second vertical plate portion 82, respectively. . In the illustrated embodiment, the first vertical plate portion 81 and the second vertical plate portion 82 rise independently from the horizontal plate portion 80, but the first vertical plate portion 81 and the second vertical plate portion 82. The strength may be increased by connecting (for example, welding) end portions adjacent to each other through a vertical member (not shown).

With reference to FIG. 7, the fixing configuration of the guide rail base frame 2 and the connecting member 8 will be described. The connecting member 8 causes the lower surface of the horizontal plate-shaped portion 80 to coincide with or be close to the lower end of the guide rail base frame 2, and the first vertical plate-shaped portion 81 of the side 21 of the guide rail base frame 2 (extends in the expected direction). The second vertical plate 82 is brought into contact with the inner surface (the surface on the side opposite to the side 22), and the second vertical plate-like portion 82 is brought into contact with the outdoor side surface of the bottom 20 of the guide rail base frame 2 (extending in the direction of finding). The first vertical plate-like portion 81 and the side 21, and the second vertical plate-like portion 82 and the base 20 are fixed by rivets 10 exemplified as fixing means. In the connecting member 8 fixed to the guide rail base frame 2, the first vertical plate-like portion 81 extends in the prospecting direction or the indoor / outdoor direction, and the second vertical plate-like portion 82 extends in the finding direction. In other words, the connecting member 8 is fixed to the two surfaces (side 21 and bottom 20) of the guide rail base frame 2 in two parts (first vertical plate 81 and second vertical plate 82). In the present embodiment, the two surfaces extend in different directions (the side 21 is the expected direction and the bottom 20 is the direction of finding). The axis of the rivet 10 that fixes the first vertical plate-like portion 81 and the side 21 of the guide rail base frame 2 and the axis of the rivet 10 that fixes the second vertical plate-like portion 82 and the base 20 of the guide rail base frame 2. The cords are orthogonal in plan view.

The horizontal plate-like portion 80 of the connecting member 8 extends close to and opposed to the upper side 60 of the lower frame 6, and the horizontal plate-like portion 80 of the connecting member 8 is fixed to the lower frame 6 by screws 9 exemplified as fixing means. Is done. The screw 9 extends in the vertical direction, passes through the long hole 800 of the horizontal plate-like portion 80 of the connecting member 8 and the hole of the upper side 60 of the lower frame 6, and is fixed to the lower side 64. The fixing means for the lower end of the shaft portion of the screw 9 and the lower side 64 is shown in FIGS.

In the aspect shown in FIG. 5, the to-be-connected member 11 is fixed to both ends in the length direction of the lower frame 6 so as to be positioned in the lower part on the indoor side (see FIGS. 10 and 11A). The connected member 11 includes a bottom 110 extending horizontally in the expected direction (outside of the room) of the lower frame 6 along the lower surface of the lower side 64 of the lower frame 6, and the rear side of the lower frame 6 from the indoor side end of the bottom 110. The connecting member 11 has an L shape in a side view from a vertical side 111 extending in a rising direction along the first vertical portion 650 of the 65, and the connected member 11 is connected to the first vertical portion of the lower frame 6 by the screw 12. By being connected to 650, it is fixed to the lower frame 6. A plate nut (female screw) is formed on the bottom side 110 of the connected member 11 so as to coincide with the hole 64 </ b> A of the lower side 64 of the lower frame 6. The screw 9 is inserted through the long hole 800 of the horizontal plate-shaped portion 80 of the connecting member 8, the hole 60 </ b> A at both ends in the length direction of the upper side 60 of the lower frame 6, and the holes 64 </ b> A at both ends in the length direction of the lower side 64. The frame 6 is fixed to plate nuts tapped on the bottom side 110 of the connected member 11 disposed at both ends in the length direction of the frame 6. The to-be-connected member 11 also functions as a reinforcing member that receives a force that can act on the indoor side lower part of both ends in the length direction of the lower frame 6.

In the embodiment shown in FIG. 6, the connected member 11 as shown in FIG. 5 is not fixed, and the shaft portion of the screw 9 that connects the connecting member 8 and the lower frame 6 extends in the vertical direction. A shaft portion extending below the lower side 64 through the long hole 800 of the horizontal plate-shaped portion 80, the hole 60A at both ends in the length direction of the upper side 60 of the lower frame 6 and the hole 64A at both ends in the length direction of the lower side 64 is inserted. The nut 13 is fixed to the lower end portion by tightening.

Thus, the screw 9 that connects the lower frame 6 and the lower portion of the guide rail base frame 2 extends in the vertical direction and penetrates the horizontal plate-shaped portion 80 of the connecting member 8, the upper side 60, and the lower side 64 of the lower frame 6. Are fixed to a female screw (a plate nut or nut 13 on the bottom side 110 of the connected member 11). The screw 9 connects the horizontal plate-like portion 80 of the connecting member 8 and the bottom side 110 of the reinforced plate material 11 and is held so that the upper side 60 and the lower side 64 of the lower frame 6 are sandwiched therebetween. The connecting part (the part fixed by the screw 9) of the lower frame 6 and the guide rail base frame 2 is located on the outdoor side of the support part (upper mounting piece 66, lower mounting piece 67) on the base end side of the lower frame 6. positioned.

The guide rail base frame 2 is fixed to the vertical frame 14 of the window device. As shown in FIG. 4, the guide rail base frame 2 is fixed to the vertical frame 14 by connecting the bottom side 20 to the finding surface 140 of the vertical frame 14 with screws 141. The bottom side 20 of the guide rail base frame 2 is in contact with the finding surface 140 of the vertical frame 14 via a contact protrusion 200 protruding from the indoor side surface of the bottom side 20. The guide rail base frame 2 and the vertical frame 14 of the window device may be integrally formed.

As shown in FIG. 3, an upper mounting piece 66 of the lower frame 6 and a locked portion 150 of the lower mounting piece 67 are formed on the lower frame 15 of the window device, and the upper mounting piece 66 of the lower frame 6. And the base end side part of the lower frame 6 and the lower frame 15 of a window apparatus are connected by the screw | thread 151 in the state which latched the lower side mounting piece 67 to the to-be-latched part 150 of the lower frame 15 of a window apparatus. In the present embodiment, the lower frame 6 is connected to the lower end portion of the guide rail base frame 2 and the lower frame 15 of the window device. That is, the base end side portion of the lower frame 6 includes first support means for supporting the base end side portion with respect to the first member (the lower frame 15 of the window device) and the base end side portion as the second member ( It is supported in a take-out shape by second support means for supporting the guide rail base frame 2). The first support means includes an upper mounting piece 66 and a lower mounting piece 67 at the base end side portion of the lower frame 6, a locked portion 150, and a screw 151, and is fixed to the lower frame 15 of the window device. The second support means is a connecting member 8, a screw 9, and a female screw (plate nut, nut 13) fixed to a lower part of the guide rail base frame 2, and is fixed to a lower part of the guide rail base frame 2. 2 and 3 show the configuration in which the lower frame 6 is connected to the lower frame 15 of the window device. However, depending on the fit of the lower frame 6, the lower frame 6 is fixed to the outer wall with screws (first support means). May be. Alternatively, the lower frame 6 may be formed integrally with the lower frame 15 of the window device. Further, the configuration of the support portion on the base end side of the lower frame 6 is not limited to the configuration using the upper mounting piece 66 and the lower mounting piece 67, and for example, a vertical surface on the lower frame side of the window shutter. And a vertical frame on the lower frame side of the window device may be fixed with screws.

As shown in FIG. 10, caps 16 are attached to both ends in the length direction of the lower frame 6. As shown in FIG. 11A, the cap 16 has a surface portion 160 corresponding to the side surface shape of the lower frame 6, and a plate-like portion of the seat plate 51 in the fully closed position of the opening when attached to the lower frame 6. 510 includes an extending piece 161 extending so as to cover the outdoor sides of both ends in the width direction, and a fitting piece 162 extending into a hollow portion of the lower frame 6, and the fitting piece 162 is attached to the lower frame 6 by a rivet 163. It is fixed to the upper side 60. The upper surface of the extended piece 161 of the cap 16 is in contact with or close to the lower end surface of the side edge 31 of the guide rail 3 and contacts the lower end surface of the side edge 31 when a finger or the like is inserted into the recess 600. It is regulated.

12 and 13 show a connecting member 8 according to another embodiment. As shown in FIG. 13, the connecting member 8 includes a substantially rectangular horizontal plate-shaped portion 80, a first vertical plate-shaped portion 81 ′ that rises vertically from the first side of the horizontal plate-shaped portion 80, and a horizontal plate-shaped portion. A second vertical plate-like portion 82 that rises perpendicularly from a second side of 80 (a side adjacent to the first side and extending at right angles to the first side). 'And the second vertical plate-like portion 82 extend at right angles to each other in plan view. In the illustrated embodiment, the first side is a short side and the second side is a long side. A long hole 800 of a screw 9 for fixing the connecting member 8 to the lower frame 6 is formed in the horizontal plate-shaped portion 80. Holes 810 ′ and 820 for mounting the rivets 10 for fixing the connecting member 8 to the guide rail base frame 2 are formed in the upper portions of the first vertical plate-like portion 81 ′ and the second vertical plate-like portion 82, respectively. ing.

With reference to FIG. 12, a fixing configuration of the guide rail base frame 2 and the connecting member 8 will be described. The connecting member 8 has the lower surface of the horizontal plate-shaped portion 80 aligned with the lower end of the guide rail base frame 2, and the first vertical plate-shaped portion 81 ′ is the inner surface of the side 22 (extending in the expected direction) of the guide rail base frame 2. The second vertical plate-like portion 82 is brought into contact with the outdoor side surface of the bottom side 20 (extending in the direction of finding) of the guide rail base frame 2, The first vertical plate-like portion 81 ′ and the side 22, and the second vertical plate-like portion 82 and the base 20 are each fixed with a rivet 10 exemplified as a fixing means. In the connecting member 8 fixed to the guide rail base frame 2, the first vertical plate-like portion 81 ′ extends in the prospecting direction or the indoor / outdoor direction, and the second vertical plate-like portion 82 extends in the finding direction. That is, the connecting member 8 is fixed to the two surfaces (the side 22 and the bottom 20) of the guide rail base frame 2 at two portions (the first vertical plate portion 81 ′ and the second vertical plate portion 82). In the present embodiment, the two surfaces extend in different directions (the side 22 is the expected direction, and the bottom 20 is the direction of finding). The axial center line of the rivet 10 that fixes the first vertical plate-shaped portion 81 ′ and the side 22 of the guide rail base frame 2 and the second vertical plate-shaped portion 82 and the bottom 20 of the guide rail base frame 2 of the rivet 10 are fixed. The axial line is orthogonal in a plan view.

The horizontal plate-like portion 80 of the connecting member 8 extends close to and opposed to the upper side 60 of the lower frame 6, and the horizontal plate-like portion 80 of the connecting member 8 is fixed to the lower frame 6 by screws 9 exemplified as fixing means. Is done. The screw 9 passes through the long hole 800 of the horizontal plate-like portion 80 of the connecting member 8 and the hole of the upper side 60 of the lower frame 6 and is fixed to the lower side 64. About the fixing means of the lower end of the axial part of the screw | thread 9, and the lower side 64, FIG. 5, FIG. 6 and related description can be used.

8 and 13, the first portion (first vertical plate portion 81, 81 ′) fixed to the lower portion of the side 21 or 22 of the guide rail base frame 2 and the lower portion of the bottom 20 are fixed. Although the connecting member 8 including the second portion (second vertical plate-shaped portion 82) and the third portion (horizontal plate-shaped portion 80) extending along the lower end of the guide rail base frame 2 is shown, 8 may include a third vertical plate portion (not shown) that rises vertically from the horizontal plate portion 80. For example, in FIG. 7, the horizontal plate-like portion 80 may be extended to the side 22, and a third vertical plate-like portion (not shown) rising from the side 22 may be fixed to the side 22.

3, 5, and 6, the side frames of the window shutter, that is, the lower ends of the guide rail base frame 2 and the guide rail 3 extend below the upper end of the outdoor vertical side 63, and the upper side It has reached 60. The outdoor side of the side frame (side 31 of the guide rail 3) is in contact with or close to the outdoor vertical side 63 of the lower frame 6, and the indoor side of the side frame (bottom side 20 of the guide rail base frame 2) is the bottom side. Through the abutting projection 200 projecting from the interior side surface of the 20 indoors, the abutting surface 140 of the vertical frame 14 of the window device is abutted and connected by a screw 141. That is, the lower end portions of the side frames (guide rail base frame 2 and guide rail 3) are inserted only into the lower frame 6 and are held between the inside and outside of the room. By comprising in this way, the clearance gap between the lower end part of a side frame and the lower frame 6 is lose | eliminated, crime prevention and design property improve, and it suppresses that the groove part of the guide rail 3 opens by the heating at the time of a fire.

In this embodiment, both ends in the length direction of the base end side portion (upper side 60, lower side 64) of the lower frame 6 supported on the base end side so as to be taken out to the outdoor side are connected to the guide rail base frame 2 by the connecting member 8. By connecting to the lower end part, thermal deformation of the lower frame 6 (for example, thermal deformation and drooping to the outside / downward side) is prevented as much as possible. When a fire occurs on the outdoor side in the fully closed state of the window opening, the lower frame 6 may hang down and deform so as to fall down on the outdoor side due to heating. If the lower frame 6 tries to deform so that the outdoor side portion of the lower frame 6 hangs downward, the lower frame 6 rotates downward with the support portion (upper mounting piece 66, lower mounting piece 67) on the base end side as a fulcrum. However, the connecting member 8 is fixed to the guide rail base frame 2 at the first vertical plate-like portions 81 and 81 ′ extending in the expected direction and the second vertical plate-like portion 82 extending in the finding direction. The force applied to the horizontal plate-like portion 80 of the connecting member 8 via the lower frame 6 is distributed to the first vertical plate-like portions 81 and 81 ′ and the second vertical plate-like portion 82. In particular, the first vertical plate portions 81 and 81 ′ extending in the expected direction (indoor / outdoor direction) are such that the horizontal plate portion 80 hangs downward with the base side portion (the lower end of the second vertical plate portion) as a fulcrum. The deformation of the connecting member 8 can be prevented by countering the force that deforms. Therefore, even if the lower frame 6 tries to be deformed so that the outdoor side portion hangs around the base end side portion as a fulcrum, such deformation is restricted by the connecting member 8 that supports the base end side portion of the lower frame 6 and the guide rail base frame 2. Is done.

On the other hand, the side frames (the guide rail base frame 2 and the guide rail 3) are supported so as to be brought out with respect to the vertical frame 14 of the window device in the same manner as the lower frame 6, but the guide rail base frame 2 is connected to the connecting member 8. This is reinforced by being fixed to the lower frame 6 at two locations, and a force that causes deformation or displacement (opening or tilting) of the guide rail base frame 2 acts on the guide rail base frame 2. Even so, deformation and displacement are prevented as much as possible against this force. For example, in FIG. 7, when a force that changes the angle between the base 20 and the side 21 is applied to the lower portion of the guide rail base frame 2 by heating or the like, the side 21 is the first of the connecting members. The guide rail base frame 2 is prevented from being deformed by being fixed to the vertical plate-like portion 81 and the base 20 being fixed to the second vertical plate-like portion 82. Similarly, in FIG. 12, when a force that changes the angle between the base 20 and the side 22 is applied to the lower part of the guide rail base frame 2 by heating or the like, the side 22 is connected to the connecting member. The guide rail base frame 2 is prevented from being deformed by being fixed to the first vertical plate portion 81 ′ and the base 20 being fixed to the second vertical plate portion 82.

2 Guide rail base frame (side frame)
20 Base (second side)
21, 22 Side (first surface)
3 Guide rail (side frame)
6 Lower frame 60 Upper side (base end side part)
64 Lower side (base end side part)
66 Upper mounting piece 67 Lower mounting piece 600 Recess 8 Connecting member 80 Horizontal flat portion (third portion)
81 First vertical plate-like part (first part)
82 Second vertical plate (second part)
9 Screw 10 Rivet 110 Bottom (Female screw)
13 Nut (Female thread)

Claims (6)

The lower frame of the window shutter is connected to the lower part of the left and right side frames of the window shutter using a connecting member,
The side frame includes a first surface and a second surface extending in a height direction, and a lower end of the side frame is close to or at least partially in contact with the lower frame,
The connecting member includes a first portion fixed to the first surface of the side frame, a second portion fixed to the second surface, and a third portion extending along a lower end of the side frame. Have
The third portion of the connecting member and the lower frame are fixed.
Reinforcement structure of the window shutter bottom frame. The lower frame is supported on the base end side so as to be taken out to the outdoor side, and has a recess for receiving a lower part of the seat plate at the lower end of the shutter curtain in a fully closed state of the window opening, and a base end positioned on the base end side of the recess A side part,
The lower end of the side frame is close to or at least partially in contact with the upper surface of the proximal side part,
The lower frame is connected to a lower part of the side frame using a connecting member,
The third portion of the connecting member and the base end side portion of the lower frame are fixed,
The reinforcement structure of the lower frame of the window shutter of Claim 1. The proximal end side portion includes the upper surface and a lower surface that is positioned below and spaced from the upper surface,
The third portion of the connecting member is fixed to a female screw provided on the lower surface by a screw penetrating the third portion and the upper surface.
The reinforcement structure of the lower frame of the window shutter of Claim 2. The first surface and the first portion extend in a first direction; the second surface and the second portion extend in a second direction;
The reinforcement structure of the lower frame of the window shutter of any one of Claims 1-3. At least one of the first surface and the first portion, the second surface and the second portion extends in the expected direction,
The reinforcement structure of the lower frame of the window shutter of any one of Claims 1-4. The first surface and the first portion extend in a prospective direction, and the second surface and the second portion extend in a finding direction,
The reinforcing structure of the lower frame of the window shutter according to claim 5.

Images