JP2021038543A - Fitting - Google Patents

Abstract

To provide a fitting that can maintain airtightness even under negative pressure.SOLUTION: A fitting includes a frame 1, a sliding door 2, and a tight material 3. The tight material 3 is attached to the frame 1 and has an under-positive-pressure airtight maintaining part 4 and an under-negative-pressure airtight maintaining part 5. The under-negative-pressure airtight maintaining part 5 is located on the inner circumference of the under-positive-pressure airtight maintaining part 4, and its deformation amount l in the indoor direction is larger than the displacement amount L of the sliding door to the outdoor side under negative pressure.SELECTED DRAWING: Figure 4

Description

The present invention relates to a fitting that can maintain airtightness even under negative pressure.

In the conventional fitting, a tight material is provided on the frame, and the shoji comes into contact with the tight material when the frame is closed to ensure airtightness (see, for example, Non-Patent Document 1). In such conventional fittings, when the shoji is pulled to the outside of the room under negative pressure, the shoji may separate from the tight material and airtightness may not be maintained.

Sankyo Tateyama Co., Ltd. Catalog "Building Materials Curtain Wall General Catalog" (Catalog No. STB0261I YP. 15.07-030), July 2015, p. 248

In view of the above-mentioned circumstances, an object of the present invention is to provide a fitting that can maintain airtightness even under negative pressure.

In order to achieve the above problems, the fitting according to the invention according to claim 1 includes a frame, a shoji, and a tight material, and the tight material is attached to the frame to maintain an airtightness at positive pressure and an airtightness at negative pressure. The airtight holding part at the time of negative pressure is located on the inner peripheral side of the airtight holding part at the time of positive pressure, and the amount of deformation in the indoor side is larger than the amount of displacement of the shoji to the outdoor side at the time of negative pressure. It is characterized by that.

The fitting according to the invention according to claim 1 includes a frame, a shoji, and a tight material, and the tight material is attached to the frame and has an airtight holding portion at positive pressure and an airtight holding portion at negative pressure. The airtight holding part is located on the inner peripheral side of the airtight holding part at positive pressure, and the amount of deformation in the indoor side is larger than the amount of displacement of the shoji to the outside at the time of negative pressure. Even if it is displaced to the outdoor side, the airtightness can be maintained because the airtightness holding portion follows the shoji at the time of negative pressure.

FIG. 3 is a cross-sectional view taken along the line AA of FIG. FIG. 3 is a cross-sectional view taken along the line BB of FIG. It is an outdoor front view which shows one Embodiment of the fitting of this invention. It is a vertical cross-sectional view which shows the lower side of the shoji of the joinery enlarged. It is a vertical cross-sectional view showing the periphery of the tight material in an enlarged manner, in which (a) is a state in which the shoji is open, (b) is a state in which the shoji is closed, and (c) is a state in which the shoji is displaced to the outdoor side at the time of negative pressure. Indicates the state of time.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 4 show an embodiment of the fitting of the present invention. This fitting is applied to a curtain wall that forms the outer wall of a building, and more specifically, it is used as a smoke exhaust window of a building such as a gymnasium or a theater.
As shown in FIG. 3, a plurality of the fittings are installed side by side in the left-right direction and the up-down direction in support of the mullion 7, 7, ... It is equipped with window units 6, 6, ...

The mullion 7 is a long material formed of an aluminum profile, and as shown in FIG. 2, is located on the indoor side of adjacent vertical frames 8 and 8 of adjacent left and right window units 6 and 6. It has a hollow portion 14 having a rectangular cross section, and L-shaped pieces 15 and 15 formed on both the left and right sides of the hollow portion 14. A groove 16 having an opening on the outdoor side is formed on the outdoor wall of the hollow portion 14, and a packing 13 is provided in the groove 16 over the entire length of the vertical frame 8. Further, on the indoor side of the hollow portion 14, there is an engaging groove 19 with which the connecting tool 18 attached to the skeleton 17 engages, and the outdoor end of the connecting tool 18 becomes the engaging groove 19 of the mullion 7. Engaged and fixed with bolts 20 (see FIG. 1). A round bar-shaped locked portion 12 for locking the locking portion 11 of the bracket 9 of the window unit 6, which will be described later, is provided between the left and right L-shaped pieces 15 and 15 and the side wall of the hollow portion 14.

As shown in FIGS. 1 to 3, the window unit 6 includes a frame 1 and a shoji screen 2 supported in the frame 1 so as to be openable and closable. As shown in FIG. 1, the shoji 2 is adapted to rotate outward and open with the lower side as a fulcrum.
As shown in FIGS. 1 to 3, the frame 1 is composed of an upper frame 21 made of an aluminum profile, a lower frame 22, and left and right vertical frames 8 and 8. As shown in FIG. 2, the vertical frame 8 has a prospect wall 23 and a finding wall 24 provided on the indoor side of the prospect wall 23 so as to project toward the inner peripheral side, and the finding wall 24 is provided with a hollow portion. It is thickened. Further, the vertical frame 8 is provided with a ridge 25 projecting from the finding wall 24 toward the indoor side toward the indoor side so as to be continuous with the prospective wall 23 in the entire length. A tight material 26 is provided at the outdoor end of the prospect wall 23 so as to project toward the outer peripheral side, and the tight material 26 closes the gap between the adjacent vertical frames 8 and 8 on the outdoor side.

As shown in FIGS. 1 and 2, the vertical frame 8 is provided with a plate-shaped bracket 9 projecting toward the indoor side. The bracket 9 is inserted into the hollow portion of the finding wall 24 at the outdoor side portion, and is attached by bolts and nuts 27. As shown in FIG. 1, the bracket 9 is provided with a groove-shaped locking portion 11 whose lower side is open on the indoor side, and a tapered portion on the indoor side of the locking portion 11 which is inclined toward the indoor side as it goes downward. 10 is provided.
When the locking portion 11 of the bracket 9 is locked to the locked portion 12 of the mullion 7 from above, the vertical frame 8 is pulled toward the mullion 7 by the weight of the window unit 6 by the tapered portion 10. Along with this, the ridge 25 of the vertical frame 8 is pressed against the packing 13 of the mullion 7, and as shown in FIG. 2, the indoor end of the ridge 25 bites into the packing 13. By having the ridge 25 of the vertical frame 8 bite into the packing 13 of the mullion 7 in this way, even if rainwater invades between the vertical frames 8 and 8 beyond the tight material 26, rainwater will enter the room. It can be prevented from invading.

As shown in FIG. 1, the upper frame 21 has a prospect wall 28, a finding wall 29 located on the indoor side, and a protrusion 30 projecting above the prospect wall 29, and the upper end of the protrusion 30. A tight material 31 is attached to the portion upward.
The lower frame 22 has a prospect wall 32 and a finding wall 33 located on the indoor side, and the prospect wall 32 is formed in a staircase shape with the indoor side raised. A tight material 34 is provided so as to project downward from the outdoor end of the prospect wall 32, and the tight material 34 is in contact with the upper surface of the upper frame 21 of the lower window unit 6. Further, a U-shaped groove 35 that opens downward is formed on the lower surface side of the raised portion of the prospect wall 32, and the protruding wall 30 of the upper frame 21 of the lower window unit 6 is formed in the groove 35. By fitting, the lower frame 22 is positioned in the prospective direction, and the tight material 31 of the upper frame 21 of the lower window unit 6 comes into contact with the bottom of the groove 35, so that the tight material 31 on the outdoor side is exceeded. Even if rainwater enters between the frame 21 and the lower frame 22, it is possible to prevent rainwater from entering the room.

As shown in FIGS. 1 and 2, on the indoor side of the inner peripheral side ends of the finding walls 24, 29, 33 of the vertical frame 8, the upper frame 21, and the lower frame 22, the tight material 3 that abuts on the shoji 2 is placed on the indoor side, respectively. Is attached, and the tight material 3 is continuous four times. As shown in FIG. 4, the tight material 3 has a base portion 37 held in the tight material holding grooves 36 of the finding walls 24, 29, 33 and an airtight holding portion at positive pressure provided on the outdoor side of the base portion 37. 4 and a negative pressure airtight holding portion 5 located on the inner peripheral side of the positive pressure airtight holding portion 4.

The airtight holding portion 4 at positive pressure is formed of a soft silicon sponge in a semi-cylindrical cross section having a hollow portion. When the shoji 2 is closed, the airtight holding portion 4 at positive pressure is crushed in the indoor direction by abutting against the indoor side surface of the shoji 2 (see FIGS. 5A and 5B) to maintain the airtightness. When a positive pressure is applied to the shoji 2 with the shoji 2 closed, the shoji 2 is pushed toward the room, so that the airtight holding portion 4 at the time of the positive pressure is further crushed to maintain the airtightness.

As shown in FIG. 4, the negative pressure airtight holding portion 5 is provided from the base portion 37 independently of the positive pressure airtight holding portion 4, and is formed in a fin shape that flexibly deforms. The negative pressure airtight holding portion 5 is made of a material harder than the positive pressure airtight holding portion 4, specifically, silicon rubber having a hardness of 70 ± 5 ° (HA = 70 ° ± 5 °). The base portion 37 is also made of the same material as the airtight holding portion 5 at the time of negative pressure, and the airtight holding portion 5 at the time of negative pressure and the base portion 37 are continuously and integrally formed.
When the shoji 2 is opened, the airtight holding portion 5 at the time of negative pressure extends obliquely toward the inner peripheral side from the inner peripheral side end of the base portion 37 to the outdoor side as shown in FIG. 5 (a). When the shoji 2 is closed, as shown in FIG. 5B, the airtight holding portion 5 at the time of negative pressure bends from the root and comes into contact with the shoji 2 along the indoor side surface. In the airtight holding portion 5 at the time of negative pressure, the amount of deformation l in the indoor / outdoor direction is larger than the amount of displacement L of the shoji 2 at the time of negative pressure to the outdoor side. The amount of displacement L of the shoji 2 to the outdoor side at the time of negative pressure varies depending on the window type, the size of the shoji, etc., but it is estimated to be at most 10 mm, and the amount of deformation of the airtight holding portion 5 at the time of negative pressure in the indoor / outdoor direction. l has a larger dimension, for example 12 mm.

FIG. 5C shows a state at the time of negative pressure. At the time of negative pressure, the shoji 2 is pulled to the outside of the room, and the airtight holding portion 4 at the time of positive pressure separates from the shoji 2. And keeps the contact state by following the displacement of the shoji 2. Therefore, the airtightness can be maintained even at the time of negative pressure.
Assuming that the airtight holding portion 5 at negative pressure is provided from the airtight holding portion 4 at positive pressure, if the airtight holding portion 4 at positive pressure is pushed by the obstacle 2 and deformed when the obstacle 2 is closed, the airtight holding portion 4 at positive pressure is maintained. The airtight holding portion 5 at the time of negative pressure may also be displaced due to the deformation of the portion 4, and the airtight holding portion 5 at the time of negative pressure may be separated from the obstacle 2. Since the airtight holding portion 4 at the time of pressure is provided separately from the base portion 37, the airtight holding portion 5 at the time of negative pressure is always in contact with the obstacle 2 without being affected by the deformation of the airtight holding portion 4 at the time of positive pressure. Can maintain airtightness.

As shown in FIGS. 1 and 2, the shoji 2 has a stile 41 made of an aluminum profile, an upper stile 38 and a lower stile 39, and left and right vertical stiles 40 and 40, and a chamber in the stile 41. It has an external panel portion 42 fitted from the outside and an internal panel portion 43 fitted into the frame 41 from the indoor side. An air layer 44 is provided between the outer panel portion 42 and the inner panel portion 43. The width D of the air layer 44 is 65 mm. In the shoji 2, the lower stile 39 is connected to the lower frame 22 by a hinge 45 (see FIG. 1). A damper 46 for projecting the shoji 2 out of the room is installed between the vertical frame 40 and the vertical frame 8 (see FIG. 2).
The outer panel portion 42 is a multi-layer panel having an outdoor panel 47 and an indoor panel 48. The outdoor panel 47 is an aluminum panel having a plate thickness of 3 mm, and the indoor panel 48 is a steel panel having a plate thickness of 1.6 mm. The outdoor panel 47 and the indoor panel 48 are adhered to each other via anti-vibration rubber 49 arranged on four circumferences between the two panels, and a 5 mm air layer is formed between the outdoor panel 47 and the indoor panel 48. 50 is provided. The outer panel portion 42 is attached to the outdoor groove 52 of the frame 41 by gaskets 51a and 51b.
The inner panel portion 43 is an aluminum panel having a plate thickness of 3 mm. The inner panel portion 43 is attached to the groove 54 on the indoor side of the frame 41 by gaskets 53a and 53b.

When sound is generated in the room, the inner panel portion 43 vibrates, but the power of vibration is weakened by the air layer 44 between the inner panel portion 43 and the outer panel portion 42, and the indoor side of the outer panel portion 42. By arranging a heavy steel panel as the panel 48, the transmitted vibration is greatly suppressed by the indoor side panel 48. Further, since the air layer 50 is formed on the outdoor side of the steel indoor panel 48 by the anti-vibration rubber 49 and the aluminum outdoor panel 47 is provided, the vibration is further suppressed. As a result, it exhibits extremely excellent sound insulation performance. By using the steel panel (indoor side panel 48), the width D of the air layer 44 can be reduced, and the estimated size of the frame 1 can be reduced. By arranging the aluminum panel (outdoor panel 47) on the outdoor side of the steel panel, it is possible to prevent the steel panel from rusting. Condensation can be prevented by forming the inner panel portion 43 to be an aluminum panel having good thermal conductivity.
Further, since the metal panel (steel panel and aluminum panel) is fitted in the shoji 2 of this fitting, it has a light-shielding property and does not allow light to shine into the room from the outside.

Next, the construction procedure of this fitting will be described. First, the mullion 7, 7, ... Is attached to the skeleton 17. Next, the pre-assembled window units 6 are attached between the mullion 7 and 7 in order from the lower one. To attach the window unit 6, the locking portion 11 of the bracket 9 attached to the vertical frame 8 is locked to the locked portion 12 of the mullion 7 from above, and the groove 35 of the lower frame 22 is locked to the lower window unit 6. This is done by fitting the protrusion wall 30 of the upper frame 21 from above. At this time, as shown in FIG. 1, since the tapered portion 10 is provided on the indoor side of the locking portion 11 of the bracket 9, the window unit 6 moves toward the mullion 7 due to its own weight as the window unit 6 descends. It is attracted and the packing 13 provided between the mullion 7 and the vertical frame 8 is crushed. In particular, in this fitting, since the ridge 25 is provided at the indoor end of the vertical frame 8 over the entire length, the indoor end of the ridge 25 bites into the packing 13 (see FIG. 2), whereby the vertical frame / mullion High airtightness and watertightness can be obtained.

As described above, the present fitting includes a frame 1, a shoji screen 2, and a tight material 3, and the tight material 3 is attached to the frame 1, and the airtight holding portion 4 at positive pressure and the airtight holding portion 5 at negative pressure. The airtight holding portion 5 at the time of negative pressure is located on the inner peripheral side of the airtight holding portion 4 at the time of positive pressure, and the amount of deformation l in the indoor side is the amount of displacement of the shoji 2 to the outdoor side at the time of negative pressure. Since it is larger than L, even if the shoji 2 is displaced to the outdoor side at the time of negative pressure, the airtight holding portion 5 at the time of negative pressure follows the shoji 2, so that the airtightness can be maintained.
Since the tight material 3 is provided with the airtight holding portion 5 at the time of negative pressure from the base portion 37, the airtight holding portion 5 at the time of negative pressure is not affected by the deformation of the airtight holding portion 4 at the time of positive pressure and is always attached to the shoji 2. It can be brought into contact and airtightness can be maintained.
Further, in the tight material 3, since the airtight holding portion 5 at negative pressure is harder than the airtight holding portion 4 at positive pressure, the airtight holding portion 5 at negative pressure can quickly follow the displacement of the shoji 2.

Further, the present fitting includes a window unit 6 and a mullion 7 for supporting the window unit 6. The window unit 6 has a bracket 9 on a vertical frame 8, and the bracket 9 is a locking portion having a tapered portion 10. 11 is provided, and the mullion 7 has a locked portion 12 to which the locking portion 11 of the bracket 9 is locked, and has a packing 13 between the vertical frame 8 of the window unit 6 and the mullion 7. When the locking portion 11 of the bracket 9 is locked to the locked portion 12 of the mullion 7, the window unit 6 is pulled toward the mullion 7 by its own weight by the tapered portion 10, and the packing 13 is crushed. Then, simply by locking the bracket 9 of the window unit 6 to the locked portion 12 of the mullion 7 from above, the window unit 6 is pulled toward the mullion 7 by the weight of the window unit 6 and the vertical frame / mullion. Since the packing 13 in the window is crushed, the workability is good and the watertightness and airtightness are excellent.
The window unit 6 has a ridge 25 on the indoor side of the vertical frame 8 in the longitudinal direction, the packing 13 is provided on the outdoor side surface of the mullion 7 in the longitudinal direction, and the ridge 25 of the vertical frame 8 is provided on the packing 13 in the longitudinal direction. Since it is made to bite into, the watertightness and airtightness can be further improved.
In this fitting, the mullion 7 is located on the indoor side of the adjacent vertical frames 8 and 8 of the left and right window units 6 and 6, and the vertical frame adjacent to one packing 13 attached to the outdoor side surface of the mullion 7. Since 8 and 8 are pressed, watertightness and airtightness can be maintained with a simple structure.

The present invention is not limited to the embodiments described above. The structure and material of the frame and shoji are arbitrary. The opening of the shoji is arbitrary, and the shoji may be fixed to the frame so as not to move. The shape and material of the airtight holding portion at positive pressure and the airtight holding portion at negative pressure can be changed as appropriate. As for the material, the material of the airtight holding portion at negative pressure may be harder than the material of the airtight holding portion at positive pressure.

1 Frame 2 Shoji 3 Tight material 4 Airtight holding part at positive pressure 5 Airtight holding part at negative pressure 6 Window unit 7 Mullion 8 Vertical frame 9 Bracket 10 Tapered part 11 Locking part 12 Locked part 13 Packing

Claims (1)

It is provided with a frame, a shoji, and a tight material, and the tight material is attached to the frame and has an airtight holding portion at positive pressure and an airtight holding portion at negative pressure, and the airtight holding portion at negative pressure is airtight at positive pressure. A fitting that is located on the inner peripheral side of the holding part and is characterized in that the amount of deformation in the indoor side is larger than the amount of displacement of the shoji to the outdoor side at the time of negative pressure.

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