Sash

Abstract

To provide a fixture having inner and outer shoji, with an improved heat insulation property.SOLUTION: A sash is provided with a lower frame, and inner and outer shoji, wherein the lower frame is formed with an outdoor side form member, and an indoor side form member, and a heat insulation bridge. The outdoor side form member and the indoor side form member comprise a lower rail, respectively. A metal cover member is arranged between lower rails at the outdoor side of the inner shoji on the upper surface of the lower frame. The metal cover member comprises an elastic member having a heat insulation property on its inner side and is arranged and energized to the outdoor side.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a sash having inner and outer shutters.

Background Art

[0002] Conventionally, fittings having inner and outer shutters are well known.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In fittings having inner and outer shutters, there has been a problem of enhancing heat insulation performance.

[0005] An object of the present invention is to improve heat insulation performance in fittings having inner and outer shutters.

Means for Solving the Problems

[0006] A sash according to an embodiment includes a bottom frame, inner and outer shutters. The bottom frame consists of an outdoor - side profile, an indoor - side profile, and a heat - insulating bridge. The outdoor - side profile and the indoor - side profile each have a lower rail. A metal cover member is provided between the lower rails on the upper surface of the bottom frame on the outdoor side of the inner shutter. The metal cover member has an elastic member having heat insulation properties on the indoor side and is arranged to be biased to the outdoor side.

Effects of the Invention

[0007] With the configuration of the sash according to an embodiment, it is possible to improve heat insulation performance in fittings having inner and outer shutters.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

DETAILED DESCRIPTION OF THE INVENTION

[0009] The sash of one embodiment is a sliding sash in which inner shutters 2 and outer shutters 3 are slidably arranged by assembling upper frames 21, 31, lower frames 22, 32, and left and right vertical frames 23, 33, 24, 34 around the inner periphery of a frame body 1 formed by assembling an upper frame 11, a lower frame 12, and left and right vertical frames 13, 14 around the periphery, and fitting a panel body such as glass into the inner periphery. A screen door 4 is arranged on the outdoor side of the inner and outer shutters 2, 3.

[0010] (Frame body) As shown in FIG. 1, the upper frame 11 constituting the frame body 1 includes an upper frame main body arranged on the inner peripheral surface of the opening of the building, and a resin upper frame 114 and a resin upper cover member 115 arranged on the inner periphery of the upper frame main body. The upper frame 11 has a weatherstripping member 51 disposed on the inner peripheral surface at a position above the mating portion of the inner and outer shoji screens 2 and 3.

[0011] The upper frame body includes an indoor-side profile 111 made of a metal material such as an aluminum alloy and having an inner upper rail, an outdoor-side profile 112 made of a metal material such as an aluminum alloy and having an outer upper rail, and a heat-insulating bridge 113 made of a heat-insulating material such as a synthetic resin that connects the indoor-side profile 111 and the outdoor-side profile 112.

[0012] The resin upper frame 114 is disposed on the indoor side of the inner upper rail of the indoor-side profile 111 of the upper frame body, covers the inner peripheral surface of the indoor-side profile 111, suppresses the transfer of heat and cold from the indoor-side profile 111, and improves the heat insulation performance.

[0013] The upper cover member 115 is disposed between the inner upper rail of the indoor-side profile 111 and the outer upper rail of the outdoor-side profile 112, and extends from the left vertical frame 13 to the mating portion (weatherstripping member 51). A flap piece 115a that slopes so as to extend indoors as it goes downward is attached to the lower surface.

[0014] When the inner and outer shoji screens 2 and 3 are closed, the upper frame 11 covers the outdoor-side profile 112 that is exposed on the indoor side of the outer shoji screen 3 with the resin upper cover member 115, and the lower end of the flap piece 115a of the upper cover member 115 is close to the upper surface of the outer shoji screen 3, dividing the space between the upper surface of the outer shoji screen 3 and the lower surface of the upper frame 11 from the indoor space, thereby improving the heat insulation performance.

[0015] As shown in FIGS. 1 and 4, the lower frame 12 that constitutes the frame body 1 includes a lower frame body disposed on the inner peripheral surface of the opening of the building, a resin lower frame 124 disposed on the indoor-side inner periphery of the lower frame body, and a resin lower cover member 125 and a metal lower cover member 126 disposed on the inner peripheral surface of the lower frame body. The lower frame 12 has a water stop piece 52 disposed on the inner peripheral surface at a position below the mating portion of the inner and outer shoji screens 2 and 3, and stoppers 71 and 72 (FIG. 2) that prevent the inner and outer shoji screens 2 and 3 from colliding with the left and right vertical frames 13 and 14 are disposed on the inner peripheral surfaces at the left and right end positions.

[0016] The lower frame body includes an indoor profile 121 made of a metal material such as an aluminum alloy and having an inner lower rail 121a, an outdoor profile 122 made of a metal material such as an aluminum alloy and having an outer lower rail 122a, and a heat insulation bridge 123 that connects the indoor profile 121 and the outdoor profile 122.

[0017] The resin lower frame 124 is disposed on the indoor side of the inner lower rail 121a of the indoor profile 121 of the lower frame body, covers the inner peripheral surface of the indoor profile 121, suppresses the transfer of heat and cold from the indoor profile 121, and improves the heat insulation property.

[0018] The resin lower cover member 125 is disposed between the inner lower rail 121a and the outer lower rail 122a of the lower frame 12, in the region where the outer shutter 3 is disposed when the inner and outer shutters 2, 3 are closed. The metal lower cover member 126 is disposed between the inner lower rail 121a and the outer lower rail 122a of the lower frame 12, in the region where the inner shutter 2 is disposed when the inner and outer shutters 2, 3 are closed.

[0019] Specifically, as shown in FIG. 3(a), the resin lower cover member 125 is disposed between the inner lower rail 121a and the outer lower rail 122a of the lower frame 12, between the stopper 71 of the inner shutter 2 installed on the inner periphery of the left vertical frame 13 and the water stop piece 52 installed at the mating portion. The metal lower cover member 126 is disposed between the inner lower rail 121a and the outer lower rail 122a of the lower frame 12, between the stopper 72 of the outer shutter 3 installed on the inner periphery of the right vertical frame 14 and the water stop piece 52 installed at the mating portion.

[0020] As shown in FIG. 2, the left vertical frame 13 and the right vertical frame 14 that constitute the frame body 1 are each made of a metal material such as an aluminum alloy and include a left vertical frame main body 131 and a right vertical frame main body 141 disposed on the inner peripheral surface of the opening of the building, and a resin left vertical frame 132 and a resin right vertical frame 142 disposed on the indoor side inner periphery of the left vertical frame main body 131 and the right vertical frame main body 141.

[0021] (Inner and outer shutters) As shown in FIG. 1, the upper frame 21 and the lower frame 22 that constitute the inner shutter 2 include an upper frame body 211 and a lower frame body 221 made of a metal material such as an aluminum alloy, and resin upper frames 212 and resin lower frames 222 disposed on the inner circumferences on the indoor side of the upper frame body 211 and the lower frame body 221.

[0022] As shown in FIG. 2, the left vertical frame (summoning frame) 23 that constitutes the inner shutter 2 is composed of a left vertical frame body 231 made of a metal material such as an aluminum alloy and having a hollow portion, and a resin left vertical frame 232 that covers the indoor side and the outer peripheral side of the left vertical frame body 231. The left vertical frame 23 is provided with a smoke-return piece on the outdoor side surface of the left vertical frame body 231, and a crescent lock 61 is provided on the outer peripheral side surface.

[0023] As shown in FIG. 2, the right vertical frame (door end frame) 24 that constitutes the inner shutter 2 is composed of a right vertical frame body 241 made of a metal material such as an aluminum alloy and having a hollow portion, and a resin right vertical frame 242 that has a hollow portion and covers the indoor side of the right vertical frame body 241.

[0024] As shown in FIG. 2, the right vertical frame (summoning frame) 34 that constitutes the outer shutter 3 is composed of a right vertical frame body 341 made of a metal material such as an aluminum alloy and having a hollow portion. An airtight material and a smoke-return piece are provided on the indoor side surface of the right vertical frame body 341 toward the summoning frame 23 of the inner shutter 2, and a crescent receiver 62 is provided. Note that the upper frame 31, the lower frame 32, and the door end frame 33 of the outer shutter 3 are the same as the upper frame 21, the lower frame 22, and the door end frame 24 of the inner shutter 2, and thus the description thereof is omitted here.

[0025] (Structure of the lower cover member) In the lower frame 12 of the sash of the present embodiment, by disposing a metal lower cover member 126 on the upper surface on the outdoor side of the inner shutter 2 in the region where the inner shutter 2 is located when closed, a heat insulation bridge 123 made of a heat insulation material such as synthetic resin is protected from ultraviolet rays and the like, and the aging deterioration of the frame body of the sash is suppressed. Hereinafter, the lower cover members 125 and 126 disposed on the upper surface of the lower frame 12 will be described in more detail.

[0026] As shown in Fig. 4, the lower frame 12 to which the lower cover members 125 and 126 are attached has a locking groove 121b at the lower part on the outdoor side of the inner lower rail 121a of the indoor-side profile member 121, and has a locking projection 122b on the indoor side of the outer lower rail 122a of the outdoor-side profile member 122.

[0027] As shown in Fig. 4(a), the resin-made lower cover member 125 has a projected wall 125a that covers the upper surface of the lower frame 12 between the inner lower rail 121a and the outer lower rail 122a, a locking claw 125b provided at the indoor-side end of the projected wall 125a, a locking portion 125c provided at the outdoor-side end of the projected wall 125a, and a leg portion 125d protruding from the lower surface of the projected wall 125a.

[0028] The resin-made lower cover member 125 is attached to the lower frame 12 by bringing the leg portion 125d into contact with the upper surface of the outdoor-side profile member 122, causing the locking portion 125c at the outdoor side end to lock onto the locking projection 122b of the lower frame 12 from below, and causing the locking claw 125b at the indoor side end to lock into the locking groove 121b of the lower frame 12.

[0029] When attaching the resin-made lower cover member 125 to the lower frame 12, as shown in Fig. 5(a), lock the locking portion 125c on the outdoor side of the lower cover member 125 below the locking projection 122b provided on the indoor side of the outer lower rail 122a, and rotate so that the indoor side approaches the lower frame 12 with the locking portion 125c as the center.

[0030] By rotating the lower cover member 125, as shown in Fig. 5(b), the locking claw 125b on the indoor side of the lower cover member 125 comes into contact with the indoor side of the inner lower rail 121a. By further rotating, the lower cover member 125 deforms elastically, but when the locking claw 125b of the lower cover member 125 reaches the locking groove 121b formed on the outdoor side of the inner lower rail 121a, the lower cover member 125 returns to its original shape, the locking claw 125b locks into the locking groove 121b, and the lower cover member 125 can be attached to the lower frame 12.

[0031] As shown in FIGS. 3 and 4(b), the metal lower cover member 126 has a projected wall 126a that covers the upper surface of the lower frame 12 between the inner lower rail 121a and the outer lower rail 122a, a mounting groove portion 126b provided on the lower surface of the projected wall 126a on the indoor side, a locking portion 126c provided at the outdoor side end of the projected wall 126a, and leg portions 126d and 126e that project from the lower surface of the projected wall 126a. An elastic member 127 having heat insulation properties is provided on the indoor side of the projected wall 126a.

[0032] The elastic member 127 has a mounting portion 127a and an elastic fin piece 127b that projects from one side of the mounting portion 127a. The mounting portion 127a is fitted into the mounting groove portion 126b provided on the lower surface of the indoor side of the metal lower cover member 126, and the elastic fin piece 127b is provided so as to project to the indoor side of the lower cover member 126.

[0033] The metal lower cover member 126 is mounted on the lower frame 12 by placing the leg portions 126d and 126e on the upper surface of the outdoor side member 122 and biasing the lower cover member 126 outward by bringing the elastic member 127 into contact with the outdoor side surface of the inner lower rail 121a in a state where the locking portion 126c at the outdoor side end is locked to the locking projection 122b of the lower frame 12 from below.

[0034] A drainage portion 126f is formed at the outdoor side end of the projected wall 126a (locking portion 126c) of the metal lower cover member 126. When the lower cover member 126 is mounted between the inner lower rail 121a and the outer lower rail 122a of the lower frame 12, a drainage path can be formed to drain the water accumulated on the upper surface of the lower cover member 126 between the lower cover member 126 and the outer lower rail 122a.

[0035] When mounting the metal lower cover member 126 on the lower frame 12, as shown in FIGS. 6(a) and 6(b), the lower cover member 126 is tilted so that the indoor side is lower and the outdoor side is higher in the expected direction, and the side on the indoor side is brought closer to the inner lower rail 121a so as to sneak under the lower frame 22 of the inner blind 2 from the outdoor side of the sash.

[0036] By causing the indoor side of the lower cover member 126 to sneak under the lower frame 22 of the inner shutter 2 and approach the inner lower rail 121a, the elastic fin piece 127b of the elastic member 127 provided on the indoor side of the lower cover member 126 reaches the outdoor side of the inner lower rail 121a. By elastically deforming the elastic fin piece 127b, the locking portion 126c on the outdoor side of the lower cover member 126 can be further brought closer until it reaches the indoor side of the locking projection 122b of the outer lower rail 122a.

[0037] After that, as shown in FIGS. 7(a) and 7(b), when the locking portion 126c at the outdoor side end of the lower cover member 126 reaches the indoor side of the locking projection 122b provided on the indoor side of the outer lower rail 122a, in the manner of a kendon, move the locking portion 126c of the lower cover member 126 to a position below the locking projection 122b, and lock the locking portion 126c to the locking projection 122b of the lower frame 12.

[0038] Since the lower cover member 126 is urged outward by the elastic member 127 in a state where the locking portion 126c on the outdoor side is locked below the locking projection 122b provided on the indoor side surface of the outer lower rail 122a, it can be mounted on the upper surface of the lower frame 12 without play, without shifting outward and losing the lock with respect to the locking projection 122b. Note that the metal lower cover member 126 may be configured such that the elastic member 127 protruding indoors locks into the locking groove 121b on the outdoor side of the inner lower rail 121a during mounting.

[0039] (Effect of the window sash of this embodiment) As described above, in the window sash of this embodiment, between the inner lower rail 121a and the outer lower rail 122a of the lower frame 12, a resin lower cover member 125 is disposed on the indoor side of the outer shutter 3 when the inner and outer shutters 2 and 3 are closed, and a metal lower cover member 126 is disposed on the outdoor side of the inner shutter 2.

[0040] The resin lower cover member 125 disposed on the lower frame 12 covers the upper surface of the outdoor side profile member 122 that is exposed to the indoor space when the inner and outer shutters 2 and 3 are closed, so that heat transfer from the upper surface of the outdoor side profile member 122 that is exposed to the outside air to the indoor space is suppressed, improving the heat insulation performance.

[0041] The metal lower cover member 126 disposed on the lower frame 12 covers the heat insulation bridge 123 that connects the indoor side profile member 121 and the outdoor side profile member 122 which are exposed to the outdoors when the inner and outer shutters 2 and 3 are closed. Therefore, it can protect the heat insulation bridge 123 exposed to the outside air such as ultraviolet rays, improve the weather resistance, and suppress the damage of the sash due to aging deterioration.

[0042] Moreover, since the metal lower cover member 126 has an elastic member 127 having heat insulation properties on the indoor side, while stabilizing the mounting state of the lower cover member 126 by the biasing force due to the elasticity of the elastic member 127, the heat insulation property suppresses the transfer of heat and cold from the outdoor side profile member 122 to the indoor side profile member 121, and the heat insulation property in the composite sash can be maintained.

[0043] In addition, both the resin lower cover member 125 and the metal lower cover member 126 attached to the lower frame 12 can be detached and attached after fitting the inner and outer shutters 2 and 3. Therefore, they are excellent in workability, and it is easy to clean the lower frame 12, and they are excellent in maintainability.

[0044] The above embodiments do not limit the invention described in the claims, and it goes without saying that they are treated as examples.

Explanation of Reference Numerals

[0045] 12: Lower frame 121: Indoor side profile member 121a: Inner lower rail 122: Outdoor side profile member 122a: Outer lower rail 123: Heat insulation bridge 126: Lower cover member 127: Elastic member

Claims

【Claim 1】 Comprising a lower frame, inner and outer shoji; The lower frame consists of an outdoor-side profile, an indoor-side profile, and a heat-insulating bridge. The outdoor-side profile and the indoor-side profile each have a lower rail; On the upper surface of the lower frame, a metal cover member is provided between the lower rails on the outdoor side of the inner shoji; The metal cover member has an elastic member with heat-insulating properties on the indoor side and is a sash that is biased and arranged on the outdoor side.

Images