JP7501849B2 - Fittings - Google Patents

Description

The present invention relates to fittings in which a ventilation device such as a ventilation frame is placed between the frame material or frame of a shoji screen and a panel such as double-glazed glass.

Conventionally, fittings are known that have ventilation devices located on the upper edge or other parts of the fitting.

Japanese Patent Application Laid-Open No. 9-243121

The fixture of Patent Document 1 can perform ventilation when the fixture is closed.
In recent years, high fire resistance has been required even for fittings equipped with ventilation devices, for example, fittings in which a ventilation frame is placed between the frame material of a shoji screen and a panel.

The purpose of this invention is to provide fire protection to fittings that are equipped with ventilation devices such as ventilation frames that allow ventilation with the shoji screens closed.

One embodiment of the present invention comprises a frame body fixed to an opening in the main body and a shoji screen placed on the inner periphery of the frame body, with a ventilation frame unit fitted between the frame material of the shoji screen and the panel.The ventilation frame unit has a main frame, an outer frame attached to the outdoor side of the main frame, left and right vertical frames fixed to both side sides of the main frame, and an operating plate for opening and closing the indoor ventilation slit of the main frame, and an operating unit for opening and closing the operating plate is provided on the indoor wall of the main frame.A thermal expansion material that prevents the operating plate from opening is provided on the indoor side of the outer frame, opposite the lower end portion of the operating plate, and a thermal expansion material that seals a hole that appears on the indoor side of the main frame when the operating unit melts is provided on the indoor side of the outer frame.

According to this embodiment, fire resistance can be imparted to fittings in which ventilation devices such as ventilation frames are installed.

FIG. 2 is a vertical cross-sectional view of the fitting according to the embodiment of the present invention. FIG. 2 is a cross-sectional view of a fitting according to an embodiment of the present invention. 1A and 1B are vertical cross-sectional views of a ventilation frame unit portion of a fixture according to an embodiment of the present invention, where (a) is a vertical cross-sectional view when closed, and (b) is a vertical cross-sectional view when ventilating. 1A and 1B are diagrams of a ventilation frame unit of a fixture according to an embodiment of the present invention, in which (a) is a front view (indoor side) and (b) is a back view (outdoor side). 1A and 1B are diagrams of a ventilation frame unit of a fixture according to an embodiment of the present invention, where (a) is a side view and (b) is a plan view. FIG. 1 is a vertical cross-sectional view of the upper part of an inner screen to explain the fireproofing structure of a fixture according to an embodiment of the present invention, where (a) is a diagram showing a state in which a heated foam material is not placed during a fire, and (b) is a diagram showing an embodiment in which a heated foam material is placed during a fire. FIG. 1 is a cross-sectional view of a joint portion to explain the fireproof structure of a building material according to an embodiment of the present invention, where (a) is a diagram of a fire in the case where a heated foam material is not placed, and (b) is a diagram of an embodiment in which a heated foam material is placed in the case where a fire occurs.

BEST MODE FOR CARRYING OUT THE PRESENT EMBODIMENTS A fitting according to an embodiment of the present invention
In this embodiment, the sliding window will be described using the example of a sliding window in which the ventilation device is located above the inner screen, but the location where the ventilation device is located is not limited to above the screen, but may be below or to the left or right of the screen, and the screen on which the ventilation device is located is not limited to the inner screen of a sliding window, but may be the outer screen of a sliding window, or it may be a casement window or a fixed window, and is not particularly limited.

- Overall composition -
The fixture of this embodiment is a sliding window with a ventilation frame unit 5 arranged above an inner screen 2, as shown in Figures 1 and 2, and is equipped with a frame body 1 formed by an upper frame 11, a lower frame 12, and left and right vertical frames 13, 14 all around, all of which are made of a metal material such as aluminum, and inner and outer screens 2, 3 that are arranged on the inner periphery of the frame body 1 so as to be able to slide freely.

The inner and outer screens 2, 3 are made up of upper frames 21, 31, lower frames 22, 32, and left and right vertical frames 23, 24, 33, 34 assembled around the four sides of the frame body, with panels 25, 35 such as double-glazed glass arranged on the inner periphery, and a ventilation frame unit 5 is arranged between the upper frame 21 of the inner screen 2 and the panel 25.

As shown in FIG. 1, the upper frame 11 has a projection wall 111 arranged on the inner circumference of the opening in the main structure, an indoor side appearance wall 112 and an outdoor side appearance wall 113 hanging down from the indoor side and outdoor side of the projection wall 111, and a central wall 114 extending downward from the inner circumference surface at the center position in the projection direction of the projection wall 111, and an upper outer rail 115 that guides the outer screen 3 extends downward between the outdoor side appearance wall 113 and the central wall 114.

As shown in FIG. 1, the lower frame 12 has a projection wall 121 arranged on the inner circumference of the opening in the main structure, an indoor side wall portion 122 rising from the indoor side of the projection wall 121, a lower inner rail 123 supporting the inner screen 2, a lower outer rail 124 supporting the outer screen 3, and an airtight material retaining wall 125 extending from the lower end of the lower inner rail 123 to the outdoor side.

As shown in FIG. 2, the left vertical frame 13 has a projection wall 131 arranged on the inner circumference of the opening in the main body, an indoor side wall 132 and an outdoor side wall 133 extending inward from the indoor side and outdoor side of the projection wall 131, a central wall portion 134 extending inward from the inner surface of the projection wall 131 at the center position in the projection direction, and a pull-in piece 135 extending inward from the inner surface between the outdoor side wall 133 and the central wall portion 134.

As shown in FIG. 2, the right vertical frame 14 has a projection wall 141 arranged on the inner circumference of the opening in the main body, an indoor side wall 142 and an outdoor side wall 143 extending inward from the indoor side and outdoor side of the projection wall 141, a central wall portion 144 extending inward from the inner circumference of the projection wall 141 at the center position in the projection direction, and a pull-in piece 145 extending inward from the inner circumference between the indoor side wall 142 and the central wall portion 144.

The upper frame 21 of the inner shoji 2 has a glass opening 21a on its inner periphery, and its outer periphery is guided between the indoor side visible wall 112 and the central wall 114 of the upper frame 11.
The lower frame 22 of the inner shoji screen 2 has a glass opening 22a on its inner periphery, and the rollers 9 installed inside the lower frame 22 are guided freely to run on the lower inner rail 123 of the lower frame 12.

The upper frame 31 of the outer screen 3 has a glass opening 31a on its inner periphery, and its outer periphery is guided by the upper outer rail 115 of the upper frame 11.
The bottom frame 32 of the outer screen 3 has a glass opening 32a on its inner periphery, and the rollers 9 installed inside the bottom frame 32 are guided freely to run on the lower outer rails 124 of the bottom frame 12.

The door end frame (right vertical frame) 24 of the inner shoji 2 has a hollow portion and a glass opening 24a on its inner periphery, and is equipped with a pulling block on the door end (outer periphery) side. When the inner and outer shoji screens 2, 3 are closed, the pulling block abuts against the pulling piece 145 of the right vertical frame 14 and is pulled toward the inside of the room, and abuts against the airtight material attached to the indoor side wall 142.
The joint frame (left vertical frame) 23 of the inner screen 2 has a hollow portion and a glass opening 23a on its inner periphery, and is provided with a smoke deflector piece on the outdoor side and an airtight material that abuts against the indoor side of the right vertical frame 34 of the outer screen 3.

The door end frame (left vertical frame) 33 of the outer shoji 3 has a hollow portion and a glass opening 33a on its inner periphery, and is equipped with a pulling block on the door end (outer periphery) side. When the inner and outer shoji screens 2, 3 are closed, the pulling block abuts against the pulling piece 135 of the left vertical frame 13 and is pulled toward the inside of the room, and abuts against the airtight material attached to the central wall portion 134.
The joint frame (right vertical frame) 34 of the outer shoji 3 has a hollow portion and a glass opening 34a on its inner periphery, and is provided with a smoke deflector piece on the indoor side that constitutes a smoke deflector.

- Ventilation frame unit -
As shown in Figures 3 to 5, the ventilation frame unit 5 comprises a main frame 51 which defines upper and lower projecting surfaces and an indoor side surface, and which has an indoor ventilation slit 511a on the indoor side, an outer frame 52 which is attached between the upper and lower projecting surfaces on the outdoor side of the main frame 51 to define the outdoor side surface, and which has an outdoor ventilation slit 52a, left and right vertical frames 53, 54 which are fixed to both side surfaces of the main frame 51, and an operating plate 55 which opens and closes the indoor ventilation slit 511a, and an air path is formed from the outdoor ventilation slit 52a to the indoor ventilation slit 511a.

The main frame 51 has an indoor side wall 511, a lower projection wall 512 extending from the lower outdoor side of the indoor side wall 511 to the outdoor side, an outdoor side wall 513 extending downward from the outdoor side end of the lower projection wall 512, and an upper projection wall 514 extending from the upper end of the indoor side wall 511 to the outdoor side. A glass opening 51a that opens downward is formed by the lower part of the indoor side wall 511, the lower projection wall 512, and the outdoor side wall 513.

As shown in FIG. 4, an indoor ventilation slit 511a that connects the ventilation path inside the ventilation frame unit 5 to the indoor side is formed over a predetermined range in the left-right direction at an upper position of the indoor side wall 511 of the main frame 51, and an outdoor ventilation slit 52a that connects the ventilation path inside the ventilation frame unit 5 to the outdoor side is formed over the entire left-right length at a lower position of the outer frame 52.

As shown in FIG. 3, an operating plate 55 for opening and closing the indoor ventilation slit 511a is disposed on the outdoor side of the indoor side wall 511 of the main frame 51, and a knob (operating part) 56 for opening and closing the operating plate 55 and a guide part 57 are provided on the indoor side wall 511.

The operating plate 55 is a plate-shaped member having a pivot axis 55a in the longitudinal direction at the upper end and a guide pin 55b protruding downward at a predetermined position at the lower end, and is held relative to the main frame 51 so as to be freely rotatable and freely slidable in the left-right direction via the pivot axis 55a.
The knob 56 is held so as to be freely slidable in the left-right direction in a knob attachment hole formed in the indoor side wall 511, and moves in conjunction with the operating plate 55 without interfering with the swinging movement of the operating plate 55.

The guide part 57 is fixed to the outdoor side of the indoor side wall 511 in a position where the guide pin 55b of the actuating plate 55 protrudes, and a guide groove 57a is formed on the upper surface to guide the guide pin 55b of the actuating plate 55.

The operating plate 55 moves left and right without being restricted in rotation in conjunction with the knob 56 being slid left and right, and when it moves left and right, the guide pin 55b on the lower end of the operating plate 55 is guided by the guide groove 57a formed on the upper surface of the guide part 57 and moves indoors or outdoors, thereby rotating and opening the indoor ventilation slit 511a, as shown in Figure 3 (b).
The method of driving the operating plate 55 is not limited to the above.

Two interlocking pieces 514a, 514b are formed on the upper surface of the upper projection wall 514 of the main frame 51, one on the indoor side and one on the outdoor side, and two interlocking pieces 53a, 53b, 54a, 54b are formed on the outer periphery of the left and right vertical frames 53, 54, one on the indoor side and one on the outdoor side.

As shown in Figures 1 and 2, the ventilation frame unit 5 is positioned above the inner screen 2 with the two fitting pieces 514a, 514b of the upper projection 514 inserted into the glass opening 21a of the upper frame 21 of the inner screen 2, and the two fitting pieces 53a, 53b, 54a, 54b of the left and right vertical frames 53, 54 inserted into the glass openings 23a, 24a of the left and right vertical frames 23, 24 of the inner screen 2. A panel 25 such as double-glazed glass is attached to the inner periphery of the glass opening 51a of the ventilation frame unit 5 and the glass openings 23a, 24a, 22a of the left and right vertical frames 23, 24 and the lower frame 22 to form the inner screen 2.

The fitting piece 514a formed on the indoor side of the upper projection wall 514 of the main frame 51 has an airtight material mounting groove 514c that opens to the indoor side at the lower part, and an airtight material s is attached to it, creating an airtight seal between the ventilation frame unit 5 and the glass opening 21a of the upper frame 21.

In the above-mentioned fittings, a ventilation device can be easily installed in the shoji by utilizing the glass opening of the frame material of the inner shoji 2 and attaching the ventilation frame unit 5.
However, by incorporating the ventilation frame unit 5 into the inner circumference of the frame material of the shoji screen, in the event of a fire, the plastic parts that make up the ventilation frame unit 5 may melt, causing a gap L1 to appear in the ventilation frame unit 5, as shown in Figure 6 (a).
In addition, due to the difference in the degree of deformation between the frame material of the inner screen 2 and the ventilation frame unit 5, a gap L2 may occur between the upper frame 21 and the upper part of the ventilation frame unit 5, or, as shown in Figure 7 (a), a gap L3 may occur between the left vertical frame 23 of the inner screen 2 and the left vertical frame 53 of the ventilation frame unit 5, which could result in a deterioration of fire resistance.
Furthermore, as shown in FIG. 6(a), a gap L4 may occur between the glass opening 51a of the ventilation frame unit 5 and the panel 25, which may result in a deterioration in fire resistance.

The fixture of this embodiment has improved fire resistance by appropriately placing a thermal expansion material on the ventilation frame unit 5. This is explained below.

In the ventilation frame unit 5 of the fitting of this embodiment, the first thermal expansion material f1 to the second thermal expansion material f8 are arranged on the main frame 51 or the outer frame 52 as shown in Figures 3 and 5 in order to close the gap that occurs in the ventilation frame unit 5 connecting the indoors and outdoors in the event of a fire.

As shown in Figure 3 (a), the first thermal expansion material f1 is arranged along the entire longitudinal length of the upper indoor side of the lower projection wall 512 of the main frame 51, and a portion of it faces the lower end of the operating plate 55 from below.
The second thermal expansion material f2 is arranged along the entire longitudinal length at a lower position on the indoor side of the outer frame 52, and a part of it faces the outdoor side of the lower end of the operating plate 55 from the outdoor side.

The third thermal expansion material f3 is provided on the indoor side of the outer frame 52, facing the plastic knob (operating part) 56 provided on the indoor side wall 511 of the main frame 51.

Therefore, in the event of a fire, as shown in FIG. 6(b), the second heated expansion material f2 expands from the outdoor side against the lower end portion of the operating plate 55, preventing the operating plate 55 from opening, while the first heated expansion material f1 expands from below against the operating plate 55, closing the gap that occurs between the operating plate 55 and the indoor ventilation slit 511a.

In addition, the third thermal expansion material f3 expands from the outdoor side toward the plastic knob (operating part) 56 provided on the indoor side wall 511 of the main frame 51, so that even if the knob 56 melts due to heat, the third thermal expansion material f3 can close the hole for attaching the knob that occurs in the indoor side wall 511.

As shown in Figures 3(a) and 5(b), the fourth thermal expansion material f4 is provided on the upper surface (upper projected surface) of the upper projected wall of the main body frame 51, facing outdoors in the projected direction.
As shown in Figure 5, the fifth thermal expansion material f5 is provided on the outside side in the projected direction on the outer peripheral projected surface of the left vertical frame 53 on the joint side.
As shown in Figure 5, the sixth thermal expansion material f6 is provided on the indoor side in the prospective direction on the outer peripheral side prospective surface of the right vertical frame 54 on the door end side.

Therefore, even if the upper frame 21 or the left and right vertical frames 23, 24 of the inner screen 2 are deformed during a fire and the ventilation frame unit 5 is disengaged due to a difference in the degree of deformation, resulting in gaps L2 and L3, the gaps can be blocked by the expanded fourth to sixth heat-expansion materials f4 to f6, as shown in Figures 6(b) and 7(b).
In particular, within the glass opening 23a of the right vertical frame 23 on the joining side, which is prone to large deformation during a fire and to the fitting piece coming loose from the frame material, the provision of a thermal expansion material f5 on the outdoor side of the projecting surface can prevent the occurrence of an indoor-outdoor gap L3 caused by the ventilation frame unit 5 coming loose.

As shown in Figure 3 (a), the seventh thermal expansion material f7 is arranged within the glass opening 51a formed below the main frame 51, and is provided on the underside of the lower projection wall 512, facing downward toward the outdoors in the projection direction.
As shown in Figure 3 (a), the eighth thermal expansion material f8 is arranged within the glass opening 51a formed below the main frame 51, and is provided on the underside of the lower projection wall 512, facing downward toward the indoor side in the projection direction.

Therefore, as shown in FIG. 6(b), even if a sealing material such as the glass channel that holds the panel 25 melts during a fire and creates a gap L4, the seventh and eighth thermal expansion materials expand from both sides in the projected direction within the glass opening 51a, preventing the occurrence of the gap L4.

As described above, in the fittings of this embodiment, in fittings in which a ventilation device is installed, the communication passages that occur in the ventilation device in the event of a fire can be reliably blocked, improving fire resistance without making the airtight material of the ventilation device more fire-resistant than necessary.

Needless to say, the above embodiments do not limit the invention described in the claims, but are treated as examples.

2: Inner screen 5: Ventilation frame unit 51: Main body frame 52: Outer frame 53: Left vertical frame 54: Right vertical frame 55: Operation plate 56: Knob (operation part)
511a: Indoor ventilation slits f1 to f8: Thermal expansion material

Claims (1)

The structure includes a frame body that is fixed to the opening of the building structure, and a screen that is placed on the inner periphery of the frame body.
The ventilation frame unit is fitted between the frame material of the shoji screen and the panel,
The ventilation frame unit has a main frame, an outer frame attached to the outdoor side of the main frame, left and right vertical frames fixed to both side surfaces of the main frame, and an operating plate that opens and closes the indoor ventilation slit of the main frame,
An operating section for opening and closing the operating plate is provided on the indoor side wall of the main body frame,
A thermal expansion material is provided on the indoor side of the outer frame at a portion facing the lower end portion of the operating plate to prevent the operating plate from opening, and a thermal expansion material is provided at a portion facing an operating part attached to the main frame to seal a hole that appears on the indoor side of the main frame when the operating part melts.

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