shutter

Abstract

To provide a slat shutter including an insulation structure.SOLUTION: On the inner surface 20 of each slat 2, a recess is formed located between an upper interlock connection part 21 and a lower interlock connection part 22, and in the recess, a heat insulation layer forming body 4 is provided. The heat insulation layer forming body 4 includes: a metal box-shaped member 5 extending in the width direction of each slat; and a first insulation member 6 filled in a hollow part of a metal box-shaped member 5. Between the heat insulation layer forming body 4 and the inner side of the surface 20, at least a second insulation member 7 is provided to restrict direct contact between metal box-shaped member 5 and the inner surface.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present invention relates to a shutter, and more particularly to a slat shutter having heat insulation performance.

Background Art

[0002] In order to open and close openings in warehouses, factories, stores, etc., so-called weight shutters may be used. There is a desire to give weight shutters heat insulation performance for the purpose of improving the internal air conditioning efficiency of logistics warehouses, factories, etc.

[0003] Patent Document 1 discloses a heat insulation slat structure of a shutter. This is characterized in that the back plates that individually cover the heat insulating material layers provided on the back side of each slat overlap along the curl portion that becomes the connecting portion between the slats. The overlap portion between the back plates reduces the heat transfer and radiative heat transfer of the curl portion, and improves the heat insulation and heat shielding performance of the entire slat.

Patent Document 1

Disclosure of the Invention

Problems to be Solved by the Invention

[0004] An object of the present invention is to provide a slat shutter having a heat insulation structure.

Means for Solving the Problems

[0005] The technical means adopted by the present invention is a shutter curtain formed by connecting a plurality of slats, left and right guide rails that receive both end portions in the width direction of the shutter curtain and guide them in the height direction, In a shutter provided with each slat is composed of a face portion, an upper connecting portion formed above the face portion, and a lower connecting portion formed below the face portion. A recess is formed on the inner surface of the aforementioned surface portion, located between the upper connecting portion and the lower connecting portion. A heat insulating layer forming body is provided in the recess. The aforementioned heat insulating layer forming body consists of a metal box-shaped member extending in the width direction of each slat, and a first heat insulating member filled in the hollow portion of the metal box-shaped member. Between the aforementioned heat insulating layer forming body and the inner surface of the surface portion, at least a second heat insulating member is provided to restrict direct contact between the metal box-shaped member and the inner surface. It's a shutter. In a typical embodiment, a shutter curtain is formed by interlocking multiple slats, with the upper connection being the upper interlocking connection and the lower connection being the lower interlocking connection. In the following description, the upper connection and the lower connection can be replaced with the upper interlocking connection and the lower interlocking connection, respectively.

[0006] In one embodiment, the metal box-shaped member comprises a face portion, an upper surface portion at the upper end of the face portion, a lower surface portion at the lower end of the face portion, and left and right side portions at both ends in the width direction, with the portion facing the face portion being open. The second heat insulating member is positioned between the tips of the upper surface, the lower surface, and the left and right side surfaces and the inner surfaces of the surfaces.

[0007] In one embodiment, the upper surface of the metal box-shaped member is welded to the upper connecting portion, and the lower surface is welded to the lower connecting portion.

[0008] In one embodiment, when the shutter curtain is in a fully closed position, both ends in the width direction of the heat insulating layer forming body are located within the guide rail. In one embodiment, the guide rail is provided with an airtight member that contacts the outer surface of the surface portion of the slat when the shutter curtain is in a fully closed position. The widthwise ends of the thermal insulation layer forming body are located at approximately the same position as the contact portion between the airtight member and the outer surface, or on the guide rail bottom side of the contact portion. [Effects of the Invention]

[0009] In this invention, a slat with improved thermal insulation performance is provided, in which a thermal insulation layer forming body, which is a metal box-shaped member equipped with a first thermal insulation member, is provided on the surface of the slat (metal) via a second thermal insulation member. [Brief explanation of the drawing]

[0010] [Figure 1] This is a front view of the shutter device according to this embodiment (when the opening is fully closed). [Figure 2] A partial side view of the shutter curtain according to this embodiment. [Figure 3] This is a front view of the slats according to this embodiment, seen from the inside. [Figure 4] This is a side view of the slat according to this embodiment. [Figure 5] This is a longitudinal cross-sectional view of the slat according to this embodiment. [Figure 6] This is a side view of the metal box-shaped member according to this embodiment. [Figure 7] This figure shows the lintel portion of the shutter device (when the opening is fully closed) according to this embodiment. [Figure 8] This is a cross-sectional view showing the positional relationship between the slat (when the opening is fully closed) and the guide rail according to this embodiment. [Figure 9] This is a partial front view (viewed from the interior side) showing the positional relationship between the slat (when the opening is fully closed) and the guide rail according to this embodiment. [Modes for carrying out the invention]

[0011] As shown in Fig. 1, the shutter device according to the present embodiment includes a shutter curtain 1 formed by interlocking and connecting a plurality of slats 2, and left and right guide rails 3 that receive both end portions in the width direction of the shutter curtain 1 and guide them in the height direction. In a shutter case C above the opening, a winding shaft (not shown) for winding the shutter curtain 1 when the opening is opened is provided, and the opening is opened and closed by raising and lowering the shutter curtain 1 by electrically rotating the winding shaft by an opener M.

[0012] The shutter device according to the present embodiment is a weight shutter having heat insulation performance. In the plurality of slats 2 forming the shutter curtain 1, when the opening is fully closed, a heat insulation layer forming body 4 is provided on the slat 2 that closes the opening, and when the opening is fully closed, the indoor and outdoor spaces are partitioned by the shutter curtain 1 composed of slats 2 having heat insulation performance (that is, slats 2 provided with the heat insulation layer forming body 4). When the opening is fully closed, it is not always necessary to provide the heat insulation layer forming body 4 on the slat 2' located in the shutter case C (see Fig. 7).

[0013] Each slat 2 is obtained by forming a steel plate into a predetermined shape, and includes a face portion 20, an upper interlock connecting portion 21 formed above the face portion 20, and a lower interlock connecting portion 22 formed below the face portion 20. When the slat 2 is in a vertical posture, the face portion 20 extends vertically, and the outer surface (facing the outdoor side when the opening is fully closed) and the inner surface (facing the indoor side when the opening is fully closed) form a vertical plane. When the slat 2 is in a vertical posture, the upper interlock connecting portion 21 extends in a curved shape from the upper end of the face portion 20 toward the indoor side and obliquely upward, and a locking portion is formed on the tip side. The lower interlock connecting portion 22 extends in a curved shape from the lower end of the face portion 20 toward the indoor side and obliquely upward, and a locking portion is formed by curling the tip side downward.

[0014] On the inner surface of the face portion 20 of the slat 2, a recess is formed between the upper interlock connecting portion 21 and the lower interlock connecting portion 22, and a heat insulation layer forming body 4 is provided in the recess.

[0015] The heat insulation layer forming body 4 is composed of a metal box-shaped member 5 extending in the width direction of each slat 2 and a first heat insulation member 6 filled in the hollow portion of the metal box-shaped member 5. Between the heat insulation layer forming body 4 and the inner surface of the face portion 20, at least a second heat insulation member 7 is provided to regulate direct contact between the metal box-shaped member 5 and the inner surface of the face portion 20. The materials of the first heat insulation member 6 and the second heat insulation member 7 are not limited, but in this embodiment, the first heat insulation member 6 and the second heat insulation member 7 are rock wool.

[0016] The metal box-shaped member 5 according to this embodiment includes a face portion 50, an upper surface portion 51 at the upper end of the face portion 50, a lower surface portion 52 at the lower end of the face portion 50, and left and right side face portions 53 at both ends in the width direction. The portion facing the face portion 50 is open, and the first heat insulation member 6 is filled in the internal space. The second heat insulation member 7 is located between the tips of the upper surface portion 51, the lower surface portion 52, and the left and right side face portions 53 of the metal box-shaped member 5 and the inner surface of the face portion 20 of the slat 2.

[0017] The area of the second heat insulation member 7 is larger than the area formed by the upper surface portion 51, the lower surface portion 52, and the left and right side face portions 53 of the metal box-shaped member 5. More specifically, the width dimension of the second heat insulation member 7 is larger than the width dimension of the metal box-shaped member 5, and it has a portion 70 protruding outside the side face portion 53 of the metal box-shaped member 5 (see FIGS. 3, 8, and 9). The height dimension of the second heat insulation member 7 is larger than the height dimension of the metal box-shaped member 5, and it has portions protruding above the upper surface portion 51 and below the lower surface portion 52 of the metal box-shaped member 5 (see FIGS. 4 and 5).

[0018] In this embodiment, the heat insulating layer forming body 4 is fixed to the slat 2 by welding. Specifically, the upper surface of the upper surface portion 51 of the metal box-shaped member 5 and the base end portion of the upper interlock connecting portion 21 are welded W1 at a predetermined location in the width direction of the slat 2, and the corner portion between the lower end of the face portion 50 and the lower surface portion 52 of the metal box-shaped member 5 and the upper end portion of the lower interlock connecting portion 22 are welded W2 at a predetermined location in the width direction of the slat 2.

[0019] The shutter device according to this embodiment is a heavy-duty shutter equipped with thermal insulation and fire protection properties. In the fully closed position of the shutter curtain 1, both ends in the width direction of the thermal insulation layer forming body 4 are located within the guide rail 3. As shown in Figure 8, the guide rail 3 comprises an indoor facing surface 30, an outdoor facing surface 31, an indoor depth surface 32, an indoor bent edge 33, an outdoor depth surface 34, and an outdoor bent edge 35, and a groove is formed between the indoor bent edge 33 and the outdoor bent edge 35 to receive the slats 2.

[0020] The exterior facing surface 34 and the exterior folding edge 35 form mounting portions (pocket portions) for attaching the airtight rubber 8. The airtight rubber 8 consists of a base portion 81 fitted into the mounting portion and fins 80 that contact the outer surface of the surface portion 20 of the slat 2. When the opening is fully closed, the fins 80 of the airtight rubber 8 contact both ends in the width direction of the outer surface of the surface portion 20 of the slat 2 in the height direction, forming an airtight structure. The airtight rubber 8 is made of a flame-retardant material and can withstand high temperatures during a fire.

[0021] In the fully closed position of the shutter curtain 1, both ends of the slat 2 in the width direction are located within the guide rail 3, but both ends of the insulation layer forming body 4 in the width direction are located on the guide rail bottom side of the contact area between the fins 80 of the airtight rubber 8 and the outer surface of the surface portion 20 of the slat 2. As shown in Figure 8, when the opening is fully closed, the ends (side portions 53) of the insulation layer forming body 4 (including the first insulation member 6) provided on the slat 2 are located on the guide rail bottom side of the contact area between the fins 80 of the airtight rubber 8 and the outer surface of the surface portion 20 of the slat 2, and the second insulation member 7 extends even further towards the guide rail bottom side than the ends (side portions 53) of the insulation layer forming body 4 (overhang portion 70).

[0022] As shown in Figure 7, a fin-shaped airtight rubber 9 is positioned above the ceiling CL in the lintel portion 10 above the opening. The airtight rubber 9 is located in the lifting path of the outer surface of the slat 2 surface portion 20, and when the opening is fully closed, the airtight rubber 9 contacts the entire width of the outer surface of a predetermined slat 2 surface portion 20 located above the opening, forming an airtight structure. The airtight rubber 9 is made of a flame-retardant material and can withstand high temperatures during a fire. [Explanation of symbols]

[0023] 1. Shutter Curtain 2 Slats 20 sides 21 Upper interlock connection section 22 Lower interlock connection section 3 Guide rails 4. Thermal insulation layer forming body 5. Metal box-shaped member 6. First insulating member 7. Second insulating member 8. Airtight rubber 80 fins

Claims

1. A shutter curtain made by connecting multiple slats, Left and right guide rails that receive both ends of the shutter curtain in the width direction and guide it in the height direction, In a shutter equipped with, Each slat consists of a surface portion, an upper connecting portion formed on the upper side of the surface portion, and a lower connecting portion formed on the lower side of the surface portion. A recess is formed on the inner surface of the aforementioned surface portion, located between the upper connecting portion and the lower connecting portion. A heat insulating layer forming body is provided in the recess. The aforementioned heat insulating layer forming body consists of a metal box-shaped member extending in the width direction of each slat, and a first heat insulating member filled in the hollow portion of the metal box-shaped member. Between the aforementioned heat insulating layer forming body and the inner surface of the surface portion, at least a second heat insulating member is provided to restrict direct contact between the metal box-shaped member and the inner surface. shutter.

2. The aforementioned metal box-shaped member comprises a face portion, an upper surface portion at the upper end of the face portion, a lower surface portion at the lower end of the face portion, and left and right side portions at both ends in the width direction, with the portion facing the face portion being open. The second heat insulating member is positioned between the tips of the upper surface, the lower surface, and the left and right side surfaces and the inner surface of the surface. The shutter according to claim 1.

3. The upper portion is welded to the upper connecting portion, and the lower portion is welded to the lower connecting portion. The shutter according to claim 2.

4. In the fully closed position of the shutter curtain, both ends in the width direction of the heat insulating layer forming body are located within the guide rail. The shutter according to claim 1.

5. The guide rail is provided with an airtight member that contacts the outer surface of the slat when the shutter curtain is in a fully closed position. The widthwise ends of the thermal insulation layer forming body are located at approximately the same position as the contact portion between the airtight member and the outer surface, or at a position closer to the bottom of the guide rail than the contact portion. The shutter according to claim 4.

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