Drip tray

Abstract

To provide a water droplet receiver capable of preventing water droplets from falling in a state where a shutter is open.SOLUTION: A water droplet receiver 30 includes: a hanging part 32 that is attached rotatably in an out-of-plane direction of a sheet shutter 20, which vertically opens and closes, on the bottom of the sheet shutter 20; and a water drip receiving tray 40 that is hung from a hanging part 32, and has a hanging state for receiving water droplets adhering to the lower end of the sheet shutter 20 or the hanging part 32 and a retracted state in which the water drip receiving tray moves in the out-of-plane direction of the sheet shutter 20 as the hanging part 32 rotates to allow landing of the bottom end of the sheet shutter 20.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a water droplet receiver.

Background Art

[0002] In a state where the sheet shutter is closed, an outer bag-shaped portion provided at the lower end of the sheet shutter abuts on the floor surface. In a state where the sheet shutter is open, the lower end portion of the outer bag-shaped portion is deformed into a substantially arch shape, and a water droplet prevention structure for flowing water droplets adhering to the outer bag-shaped portion to both ends of the sheet shutter is known (for example, see Patent Document 1).

[0003] Also, a bottom gasket having an arc-shaped cross section attached to the lower end of the sheet shutter is known (for example, see Patent Document 2).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] In the technique disclosed in Patent Document 1, in a state where the sheet shutter is open, since water droplets adhering to the lower end portion of the outer bag-shaped portion flow along the lower end portion to both ends of the sheet shutter, it is possible to suppress water droplets from falling onto an object passing under the sheet shutter.

[0006] However, in the technique disclosed in Patent Document 1, there is a possibility that water droplets adhering to the lower end portion of the outer bag-shaped portion may fall while flowing along the lower end portion to both ends of the sheet shutter.

[0007] Considering the above facts, the present invention aims to suppress the falling of water droplets when the shutter is open. [Means for solving the problem]

[0008] The water droplet receiver according to claim 1 comprises: a suspension portion that is rotatably attached to the lower end of a shutter that opens and closes in the vertical direction in an out-of-plane direction of the shutter; and a water droplet receiver that is suspended from the suspension portion and has a suspended state in which it receives water droplets attached to the lower end of the shutter or the suspension portion, and a retracted state in which it moves out-of-plane direction of the shutter as the suspension portion rotates, allowing the lower end of the shutter to land.

[0009] The water droplet receiver according to claim 1 comprises a suspension portion and a water droplet receiving portion. The suspension portion is rotatably attached to the lower end of a shutter that opens and closes in the vertical direction, in a direction out of the plane of the shutter. The water droplet receiving portion has a suspended state and a retracted state.

[0010] Here, the drip tray changes from a suspended state to a retracted state, for example, when the shutter is closed. In other words, when the shutter is closed, the drip tray moves out of the plane of the shutter as the suspension rotates. As a result, the lower end of the shutter touches the ground. Therefore, the entry of insects and other pests into the building is suppressed.

[0011] On the other hand, the water droplet receiving section changes from a retracted state to a suspended state, for example, when the shutter is opened. In other words, when the shutter is open, the water droplet receiving section is suspended from the suspension section. This allows the water droplet receiving section to catch water droplets adhering to the lower end of the shutter or the suspension section. Therefore, it is possible to prevent water droplets from falling when the shutter is open.

[0012] The water droplet receiver described in claim 2 is the water droplet receiver described in claim 1, wherein the water droplet receiver portion changes from the suspended state to the retracted state by landing on the ground as the shutter descends and tilting the suspension portion to one side in the out-of-plane direction of the shutter, and changes from the retracted state to the suspended state by being lifted up by the suspension portion as the shutter rises.

[0013] According to the water droplet catcher of claim 2, as the shutter descends, the water droplet catcher lands and the suspension part tilts to one side out of the plane of the shutter, thereby changing from a suspended state to a retracted state. As a result, the lower end of the shutter lands when the shutter is closed. Therefore, the entry of insects and other things into the building is suppressed.

[0014] On the other hand, as the shutter rises, the water droplet receiving section is lifted by the suspension section, changing from a retracted state to a suspended state. As a result, when the shutter is open, the water droplet receiving section is suspended by the suspension section and can receive water droplets adhering to the lower end of the shutter or the suspension section. Therefore, it is possible to prevent water droplets from falling when the shutter is open.

[0015] The water droplet receiver according to claim 3 is the water droplet receiver according to claim 2, wherein the suspension portion is provided along the lower end of the shutter, and the water droplet receiver, in the suspended state, receives water droplets that run down the surface of the suspension portion on one side of the out-of-plane direction of the shutter.

[0016] According to the water droplet receiver of claim 3, the suspension portion is provided along the lower end of the shutter. Furthermore, in the suspended state, the water droplet receiver receives water droplets that run down the surface of the shutter on one side in the out-of-plane direction at the suspension portion.

[0017] In this configuration, when the water droplet receiving section is retracted, the suspension section tilts to one side out of the shutter's plane, causing the lower end of the shutter to touch the ground. Therefore, when the shutter is closed, water adheres to the lower end of the shutter on one side out of the shutter's plane relative to the suspension section, or to the surface of the suspension section on one side out of the shutter's plane. The water adhering to the lower end of the shutter then flows down to the water droplet receiving section, for example, along the surface on one side out of the shutter's plane, when the shutter is open. Thus, the falling of water droplets when the shutter is open can be effectively suppressed.

[0018] The water droplet receiver according to claim 4 is the water droplet receiver according to claim 3, wherein, in the retracted state of the water droplet receiver, the suspension portion covers the lower end of the shutter from below.

[0019] According to the water droplet receiver of claim 4, when the water droplet receiver is retracted, the suspension part covers the lower end of the shutter from below. As a result, when the shutter is closed, the lower end of the shutter touches the ground via the suspension part. Therefore, when the shutter is closed, water adheres to the surface of the suspension part on one side of the shutter in the out-of-plane direction. Consequently, soiling of the lower end of the shutter is suppressed.

[0020] Furthermore, water adhering to one out-of-plane surface of the shutter in the suspension section flows down that surface to the water droplet receiving section when the shutter is open. Therefore, it is possible to effectively suppress the falling of water droplets when the shutter is open.

[0021] Thus, the present invention can effectively suppress water droplets from falling while the shutter is open, while also suppressing soiling and other damage to the lower end of the shutter.

[0022] The water droplet receiver described in claim 5 is the water droplet receiver described in any one of claims 1 to 4, wherein the water droplet receiver portion has a drainage channel with a drainage slope.

[0023] According to the water droplet receiver according to claim 5, the water droplet receiving part has a drainage channel with a drainage gradient. With this drainage channel, the water droplets received by the water droplet receiving part can be efficiently collected.

Effect of the Invention

[0024] As described above, according to the present invention, it is possible to suppress water droplets from falling when the shutter is open.

Brief Description of the Drawings

[0025] [Figure 1] It is a front view of the shutter device according to the first embodiment as seen from the indoor side. [Figure 2] It is a front view of the shutter device according to the first embodiment as seen from the indoor side. [Figure 3] (A) is a cross-sectional view taken along line 3A-3A of FIG. 2 showing the suspended state of the water droplet receiver according to the first embodiment, and (B) is a cross-sectional view corresponding to FIG. 3(A) showing the state where the water droplet receiving part of the water droplet receiver according to the first embodiment has landed. [Figure 4] (A) is a cross-sectional view corresponding to FIG. 3(A) showing the retracted state of the water droplet receiving part of the water droplet receiver according to the first embodiment, and (B) is a cross-sectional view corresponding to FIG. 3(A) showing the suspended state of the water droplet receiving part of the water droplet receiver according to the first embodiment. [Figure 5] (A) is a cross-sectional view corresponding to FIG. 3(A) showing the suspended state of the water droplet receiver according to the second embodiment, and (B) is a cross-sectional view corresponding to FIG. 3(A) showing the state where the water droplet receiving part of the water droplet receiver according to the second embodiment has landed. [Figure 6] (A) is a cross-sectional view corresponding to FIG. 3(A) showing the retracted state of the water droplet receiving part of the water droplet receiver according to the second embodiment, and (B) is a cross-sectional view corresponding to FIG. 3(A) showing the suspended state of the water droplet receiving part of the water droplet receiver according to the second embodiment. [Figure 7] (A) is a cross-sectional view corresponding to FIG. 3(A) showing the suspended state of the water droplet receiver according to a modified example of the first embodiment, and (B) is a cross-sectional view corresponding to FIG. 3(A) showing the state where the water droplet receiving part of the water droplet receiver according to the modified example of the first embodiment has landed. [Figure 8] (A) is a cross-sectional view corresponding to Figure 3(A) showing the retracted state of the water droplet receiving portion of the water droplet receiving device according to a modified example of the first embodiment, and (B) is a cross-sectional view corresponding to Figure 3(A) showing the suspended state of the water droplet receiving portion of the water droplet receiving device according to a modified example of the first embodiment. [Figure 9] (A) is a cross-sectional view corresponding to Figure 3(A) showing the water droplet receiving portion of the water droplet receiver according to a modified example of the first embodiment in a state where it is in contact with the ground, and (B) is a cross-sectional view corresponding to Figure 3(A) showing the water droplet receiving portion of the water droplet receiver according to a modified example of the first embodiment in a retracted state. [Modes for carrying out the invention]

[0026] (First Embodiment) First, I will describe the first embodiment.

[0027] (Sheet shutter device) Figures 1 and 2 show an example of a shutter device 10. The shutter device 10 comprises a pair of left and right guide boxes 12, a shutter case 14, and a sheet shutter 20. Note that the sheet shutter 20 is an example of a shutter.

[0028] A pair of guide boxes 12 are arranged columnarly on both the left and right sides of an opening 16 in a building or the like. A shutter case 14 is stretched across the upper ends of this pair of guide boxes 12. A sheet shutter 20 is housed inside the shutter case 14. An opening and closing device (not shown) for winding up or winding down the sheet shutter 20 is also housed inside the shutter case 14.

[0029] The sheet shutter (shutter curtain) 20 is formed in a sheet shape from, for example, resin. This sheet shutter 20 is rolled up or rolled down by the opening and closing device described above, moving vertically along the pair of left and right guide boxes 12. As a result, the opening 16 between the pair of left and right guide boxes 12 is opened and closed vertically.

[0030] Furthermore, the pair of left and right guide boxes 12 do not completely restrict the out-of-plane movement of the sheet shutter 20, but allow it within a predetermined range. Figure 1 shows the opening 16 closed by the sheet shutter 20. On the other hand, Figure 2 shows the lower part of the opening 16 open by the sheet shutter 20.

[0031] Multiple intermediate cylindrical sections 22 are provided in the middle of the sheet shutter 20 in the vertical direction. These intermediate cylindrical sections 22 extend in the width direction of the sheet shutter 20 and are spaced apart in the vertical direction. Inside these intermediate cylindrical sections 22 are aggregate materials (not shown) that extend across a pair of left and right guide boxes 12.

[0032] The intermediate cylindrical portion 22 may be provided as needed and can be omitted as appropriate.

[0033] As shown in Figure 3(A), a lower end cylindrical portion 24 is provided at the lower end of the sheet shutter 20. The lower end cylindrical portion 24 is formed in a cylindrical (hollow) shape extending in the width direction of the sheet shutter 20 by folding back the lower end of the sheet shutter 20.

[0034] The lower cylindrical portion 24 constitutes the lower end of the sheet shutter 20, and with the opening 16 (see Figure 2) closed by the sheet shutter 20, its lower end rests on a contact surface G such as the floor. A water droplet receiver 30, which will be described later, is attached to the lower cylindrical portion 24.

[0035] A weight member 26 is housed in the lower cylindrical portion 24. The weight member 26 is formed in a cylindrical shape extending in the width direction of the sheet shutter 20, for example, from resin or metal. The weight member 26 extends from one end to the other in the width direction of the sheet shutter 20. This weight member 26 increases the descent speed of the sheet shutter 20 when closing it, and also makes the sheet shutter 20 more stable when the lower cylindrical portion 24 of the sheet shutter 20 lands on the landing surface G.

[0036] (Water drip tray) A water droplet receiver 30 is provided on the lower cylindrical portion 24 of the sheet shutter 20. The water droplet receiver 30 is for receiving water droplets that adhere to the lower cylindrical portion 24 of the sheet shutter 20 and is provided along the lower cylindrical portion 24.

[0037] The water droplet receiver 30 has a suspension portion 32 and a water droplet receiving portion 40 made of resin, metal, or the like. As shown in Figure 3(A), the water droplet receiving portion 40 has a suspended state in which it is suspended from the suspension portion 32 when the sheet shutter 20 is open, and a retracted state in which it moves out of the plane of the sheet shutter 20 as the suspension portion 32 rotates when the sheet shutter 20 is closed, as shown in Figure 3(B).

[0038] The suspension portion 32 is formed in a plate shape and is provided along the lower end cylindrical portion 24, extending from one end to the other in the width direction of the sheet shutter 20. Furthermore, when the water droplet receiving portion 40 is suspended, the upper end portion 32U of the suspension portion 32 is rotatably attached to the lower end of the lower end cylindrical portion 24 in the out-of-plane direction of the sheet shutter 20. In other words, when the water droplet receiving portion 40 is suspended, the suspension portion 32 is able to swing in the out-of-plane direction of the sheet shutter 20 with the upper end portion 32U as a pivot point.

[0039] The upper end portion 32U of the suspension portion 32 is joined to the lower end portion of the lower end cylindrical portion 24, for example, by adhesive. Also, arrow X1 shown in Figure 3(A) indicates one side of the sheet shutter 20 in the out-of-plane direction (indoor side), and arrow X2 indicates the other side of the sheet shutter 20 in the out-of-plane direction (outdoor side).

[0040] A water droplet receiving section 40 is provided at the lower end of the suspension section 32. The water droplet receiving section 40 has a pair of protruding sections 40A and 40B and a weight section 42. The pair of protruding sections 40A and 40B are provided along the lower end of the suspension section 32 and extend from one end to the other in the width direction of the sheet shutter 20.

[0041] The pair of overhanging portions 40A and 40B, when suspended, extend outwards from the lower end of the suspension portion 32 to both sides of the sheet shutter 20 in the out-of-plane direction. Furthermore, when viewed from the width direction of the sheet shutter 20, the pair of overhanging portions 40A and 40B are curved in a convex shape toward downwards.

[0042] Of the pair of protruding sections 40A and 40B, a weight portion 42 is provided at the tip 40E of one of the protruding sections 40A (the one on the interior side) in the direction of protrusion. The weight portion 42 is provided along the tip 40E of one of the protruding sections 40A and extends from one end to the other in the width direction of the sheet shutter 20.

[0043] The weight portion 42 extends upward in a wall-like manner from the tip portion 40E of one of the protruding portions 40A when the water droplet receiving portion 40 is suspended. The weight portion 42 is also positioned on the indoor side relative to the suspension portion 32 when the water droplet receiving portion 40 is suspended, and faces the suspension portion 32 in the out-of-plane direction from the sheet shutter 20. The weight portion 42, the one protruding portion 40A, and the suspension portion 32 form a drainage channel 44 for receiving water droplets.

[0044] As shown in Figure 2, the drainage channel 44 has a drainage slope that slopes downward from the center of the sheet shutter 20 in the width direction towards both ends. This allows water droplets received in the drainage channel 44 to be collected at both ends of the sheet shutter 20 in the width direction.

[0045] Furthermore, the drainage channel 44 is not limited to a drainage slope that slopes downward from the center of the sheet shutter 20 in the width direction toward both ends; for example, it may also have a drainage slope that slopes downward from one end of the sheet shutter 20 in the width direction toward the other end. Also, it is not necessary to give the drainage channel 44 a drainage slope; the drainage channel 44 may be approximately horizontal.

[0046] As shown in Figure 3(A), the tip 40E of one of the protruding portions 40A is provided with a weight 42, as described above. Therefore, when the water droplet receiving portion 40 is suspended, the tip 40E of one of the protruding portions 40A is located at the lowest end of the water droplet receiving portion 40, and is also located directly below the upper end 32U of the suspension portion 32. As a result, when the sheet shutter 20 is closed, the tip 40E of one of the protruding portions 40A lands on the ground G, and the suspension portion 32 tilts towards the interior of the room with the tip 40E as the pivot point.

[0047] In this embodiment, of the pair of overhangs 40A and 40B, the other overhang 40B (on the outdoor side) functions as a weight to adjust the position of the tip 40E of the other overhang 40A when the water droplet receiving section 40 is suspended. This other overhang 40B may be provided as needed and can be omitted as appropriate.

[0048] (Operation of the drip tray) Next, the effects of this embodiment will be explained while describing the operation of the water droplet receiver 30 according to this embodiment.

[0049] Figure 3(A) shows the sheet shutter 20 partially opened. In this state, the water droplet receiving portion 40 of the water droplet receiving device 30 attached to the cylindrical portion 24 at the lower end of the sheet shutter 20 is suspended. Although not shown in the figure, the water droplet receiving portion 40 is also suspended when the sheet shutter 20 is fully open.

[0050] As the sheet shutter 20 descends from this state, as shown in Figure 3(B), first, the tip 40E of one of the protruding portions 40A of the water droplet receiving portion 40 touches the landing surface G. As the sheet shutter 20 descends further from this state, as shown in Figure 4(A), the water droplet receiving portion 40 moves to a retracted state.

[0051] Specifically, in this embodiment, the sheet shutter 20 is allowed to move out of plane by a pair of left and right guide boxes 12 (see Figure 1). Therefore, when the sheet shutter 20 is lowered, the suspension portion 32 tilts toward the interior side of the sheet shutter 20 (towards arrow X1), as shown by arrow R1 in Figure 3(B).

[0052] In other words, the suspension portion 32 rotates around its upper end portion 32U relative to the lower end cylindrical portion 24 toward the outdoor side of the sheet shutter 20 (towards arrow X2). As the suspension portion 32 tilts (rotates), the water droplet receiving portion 40 moves toward the outdoor side of the sheet shutter 20 relative to the lower end cylindrical portion 24. That is, the water droplet receiving portion 40 is moved to a retracted state.

[0053] As a result, as shown in Figure 4(A), the lower end of the cylindrical portion 24 at the lower end of the sheet shutter 20 touches the ground surface G, and the sheet shutter 20 is closed without any gaps. Therefore, the entry of insects and other pests into the building is suppressed.

[0054] Here, when the lower end of the lower cylindrical portion 24 lands on the landing surface G, rainwater or the like may adhere to the lower cylindrical portion 24. Then, when the sheet shutter 20 is opened with rainwater or the like adhering to the lower cylindrical portion 24, the rainwater or the like adhering to the lower cylindrical portion 24 may turn into droplets and fall onto objects passing beneath the sheet shutter 20.

[0055] In contrast, in this embodiment, when the sheet shutter 20 is closed, rainwater or the like adheres to the upper end 32U of the suspension portion 32, or to the lower cylindrical portion 24 on the indoor side of the upper end 32U. When the sheet shutter 20 rises and opens from this state, the water droplet receiving portion 40 changes from a retracted state to a suspended state, as shown in Figure 4(B).

[0056] Specifically, when the sheet shutter 20 rises, as shown by arrow R2 in Figure 4(A), the suspension portion 32 first rises towards the outside of the sheet shutter 20, centered on the tip 40E of one of the protruding portions 40A. In other words, the suspension portion 32 rotates towards the inside of the room relative to the lower cylindrical portion 24 of the sheet shutter 20, centered on its upper end portion 32U. As the suspension portion 32 rises (rotates), the water droplet receiving portion 40 moves towards the inside of the room relative to the lower cylindrical portion 24.

[0057] From this state, as the sheet shutter 20 rises further, the water droplet receiving section 40 is lifted by the suspension section 32, as shown in Figure 4(B). In other words, the water droplet receiving section 40 is shifted to a suspended state.

[0058] As a result, rainwater W adhering to the upper end 32U of the suspension portion 32, or to the lower cylindrical portion 24 on the indoor side of the upper end 32U, flows down the indoor surface 32S of the suspension portion 32 into the drainage channel 44 of the water droplet receiving portion 40. Therefore, when the sheet shutter 20 is open, it is possible to prevent water adhering to the lower cylindrical portion 24, etc., from falling onto objects passing beneath the sheet shutter 20.

[0059] Furthermore, as shown in Figure 4(A), when the water droplet receiving section 40 is retracted, as described above, the water droplet receiving section 40 is positioned on the outside relative to the lower cylindrical section 24. In this retracted state, the water droplet receiving section 40 is tilted, causing the water accumulated in the drainage channel 44 to be drained outside. Therefore, the inflow of drainage into the room is suppressed.

[0060] Furthermore, as shown in Figure 2, the drainage channel 44 of the water droplet receiving section 40 has a drainage slope that descends from the center in the width direction of the sheet shutter 20 towards both ends. This allows water droplets received in the drainage channel 44 to be efficiently collected at both ends in the width direction of the sheet shutter 20.

[0061] (Second embodiment) Next, a second embodiment will be described. In the second embodiment, components and the like that have the same configuration as in the first embodiment will be denoted by the same reference numerals, and their descriptions will be omitted as appropriate.

[0062] (Water drip tray) Figure 5(A) shows a water droplet receiver 50 according to the second embodiment. The water droplet receiver 50 is attached to the lower end cylindrical portion 24 of the sheet shutter 20. The water droplet receiver 50 is provided along the lower end cylindrical portion 24.

[0063] The water droplet receiver 50 has a suspension portion 52 and a water droplet receiving portion 54 made of resin, metal, or the like. The water droplet receiving portion 54 has a suspended state in which it is suspended from the suspension portion 52 when the sheet shutter 20 is open, as shown in Figure 5(A), and a retracted state in which it moves out of the plane of the sheet shutter 20 as the suspension portion 52 rotates when the sheet shutter 20 is closed, as shown in Figure 5(B).

[0064] The suspension portion 52 is formed in a plate shape and is positioned along the lower end cylindrical portion 24. Furthermore, when the water droplet receiving portion 54 is suspended, the vertical intermediate portion 52M of the suspension portion 52 is rotatably attached to the indoor side of the lower end cylindrical portion 24 in the out-of-plane direction of the sheet shutter 20. In other words, when the water droplet receiving portion 54 is suspended, the suspension portion 52 is capable of swinging in the out-of-plane direction of the sheet shutter 20, with the intermediate portion 52M as the pivot point.

[0065] Furthermore, as shown in Figure 6(A), the suspension portion 52 is configured to cover the lower cylindrical portion 24 from below, with its lower end facing outwards, while rotating around the intermediate portion 52M. As a result, when the sheet shutter 20 is closed, the lower cylindrical portion 24 lands on the landing surface G via the suspension portion 52.

[0066] The intermediate portion 52M of the suspension portion 52 is joined to the indoor side surface of the lower end cylindrical portion 24 by adhesive or the like, for example, while being in partial surface contact with it.

[0067] A water droplet receiving section 54 is provided at the lower end of the suspension section 52. As shown in Figure 5(A), when the sheet shutter 20 is viewed from the width direction, the water droplet receiving section 54 has a C-shaped cross-section with an opening on the indoor side when suspended. A drainage channel 56 for receiving water droplets is formed inside this water droplet receiving section 54.

[0068] The water droplet receiving section 54 is positioned below the intermediate section 52M of the suspension section 52 and on the exterior side when the water droplet receiving section 54 is suspended. As a result, when the sheet shutter 20 is closed, the lower end 54L of the water droplet receiving section 54 lands on the ground surface G, and the suspension section 52 tilts towards the interior side with the lower end 54L as its center.

[0069] Although not shown in the diagram, the drainage channel 56 has a drainage slope that slopes downward from the center of the sheet shutter 20 in the width direction towards both ends. However, the drainage channel 56 is not limited to a drainage slope that slopes downward from the center of the sheet shutter 20 in the width direction towards both ends; for example, it may have a drainage slope that slopes downward from one end to the other in the width direction of the sheet shutter 20. Furthermore, it is not necessary to have a drainage slope in the drainage channel 56, and the drainage channel 56 may be approximately horizontal.

[0070] (Operation of the drip tray) Next, the effects of this embodiment will be explained while describing the operation of the water droplet receiver 50 according to this embodiment.

[0071] Figure 5(A) shows the sheet shutter 20 partially opened. In this state, the water droplet receiving portion 54 of the water droplet receiving device 50 attached to the cylindrical portion 24 at the lower end of the sheet shutter 20 is suspended. Although not shown in the figure, the water droplet receiving device 50 is also suspended when the sheet shutter 20 is fully open.

[0072] As the sheet shutter 20 descends from this state, the lower end portion 54L of the water droplet receiving portion 54 first lands on the landing surface G, as shown in Figure 5(B). As the sheet shutter 20 descends further from this state, the water droplet receiving portion 54 moves to a retracted state, as shown in Figure 6(A).

[0073] Specifically, as shown by arrow R1 in Figure 5(B), the suspension portion 52 tilts towards the indoor side (arrow X1 side) of the sheet shutter 20, with the lower end portion 54L of the drip receiving portion 54 as the pivot point. In other words, the suspension portion 52 rotates with its middle portion 52M as the pivot point, with its lower end pointing outwards (arrow X2 side). As the suspension portion 52 tilts (rotates), the drip receiving portion 54 moves towards the outdoor side of the sheet shutter 20 relative to the lower end cylindrical portion 24. That is, the drip receiving portion 54 is moved into a retracted state.

[0074] As a result, as shown in Figure 6(A), the lower end of the cylindrical portion 24 at the lower end of the sheet shutter 20 lands on the ground surface G without any gaps via the suspension portion 52, and the sheet shutter 20 is closed. Therefore, the entry of insects and other pests into the building is suppressed.

[0075] Furthermore, when the water droplet receiving portion 54 is retracted, the suspension portion 52 covers the lower end cylindrical portion 24 of the sheet shutter 20 from below. As a result, when the sheet shutter 20 is closed, the lower end cylindrical portion 24 of the sheet shutter 20 lands on the ground surface G via the suspension portion 52, as described above. Therefore, when the sheet shutter is closed, water adheres to the indoor side surface 52S of the shutter on the suspension portion 52. Consequently, soiling of the lower end cylindrical portion 24 of the sheet shutter 20 is suppressed.

[0076] Next, when the sheet shutter 20 rises and opens, the water droplet receiving section 54 changes from a retracted state to a suspended state, as shown in Figure 6(B).

[0077] Specifically, when the sheet shutter 20 rises, first, as shown by arrow R2 in Figure 6(A), the suspension portion 52 rises towards the outside of the sheet shutter 20, centered on the lower end portion 54L of the water droplet receiving portion 54. In other words, the suspension portion 52 rotates around the middle portion 52M so that the lower end portion 52L faces inward. As the suspension portion 52 rises (rotates), the water droplet receiving portion 54 moves inward relative to the lower end cylindrical portion 24.

[0078] From this state, as the sheet shutter 20 rises further, the water droplet receiving section 54 is lifted by the suspension section 52, as shown in Figure 6(B). In other words, the water droplet receiving section 54 is shifted to a suspended state.

[0079] As a result, rainwater W adhering to the indoor surface 52S of the suspension part 52 flows down the indoor surface 52S of the suspension part 52 into the drainage channel 56 of the water droplet receiving part 54. Therefore, when the sheet shutter 20 is open, it is possible to prevent water adhering to the indoor surface 52S of the suspension part 52 from falling onto objects passing beneath the sheet shutter 20.

[0080] Thus, in this embodiment, it is possible to suppress soiling of the lower cylindrical portion 24 of the sheet shutter 20 while efficiently preventing water droplets from falling when the sheet shutter 20 is open.

[0081] Furthermore, the drainage channel 56 of the water droplet receiving section 54 has a drainage slope that descends from the center in the width direction of the sheet shutter 20 towards both ends. This allows water droplets received in the drainage channel 56 to be efficiently collected at both ends in the width direction of the sheet shutter 20.

[0082] Furthermore, as shown in Figure 6(A), when the water droplet receiving section 54 is retracted, as described above, the water droplet receiving section 54 is positioned on the outside relative to the lower end cylindrical section 24. In this retracted state, the water droplet receiving section 54 is tilted, causing the water accumulated in the drainage channel 56 to be drained outside. Therefore, the inflow of drainage into the room is suppressed.

[0083] (modified version) Next, modifications of the above embodiment will be described. In the following, various modifications will be described using the first embodiment as an example, but these modifications can also be appropriately applied to the second embodiment.

[0084] In the modified examples shown in Figures 7(A) and 7(B), a hinge portion 34 is provided in the middle of the vertical direction of the suspension portion 32 when the drip receiving portion 40 is suspended. The hinge portion 34 has a rotating shaft portion 34A that extends in the width direction of the sheet shutter 20. As a result, when the drip receiving portion 40 is suspended, the lower part of the suspension portion 32 can rotate toward the interior side relative to the upper part of the suspension portion 32 about the rotating shaft portion 34A, as indicated by arrow P.

[0085] Furthermore, the hinge portion 34 is provided with a stopper mechanism (not shown) that, when the water droplet receiving portion 40 is suspended, restricts the lower part of the suspension portion 32 from rotating toward the outside (arrow X2 side) relative to the upper part of the suspension portion 32 around the rotation axis portion 34A.

[0086] Here, as shown in Figures 8(A) and 8(B), when the sheet shutter 20 rises and opens, the water droplet receiving section 40 changes from a retracted state to a suspended state. At this time, if the suspension section 32 rotates significantly towards the interior around its upper end 32U, water accumulated in the water droplet receiving section 40 may fall out.

[0087] In contrast, in this modified example, a hinge portion 34 is provided on the suspension portion 32. As a result, when the water droplet receiving portion 40 changes from the retracted state to the suspended state, the lower part of the hinge portion 34 rotates toward the interior relative to the upper part of the suspension portion 32 around the rotation axis portion 34A, as shown by arrow P in Figure 8(B). This reduces the swaying of the water droplet receiving portion 40. Therefore, it is possible to suppress the dripping of water accumulated in the water droplet receiving portion 40.

[0088] Next, in the first embodiment described above, a water droplet receiver 30 is attached to the lower end of the sheet shutter 20. However, the water droplet receiver 30 is not limited to the sheet shutter 20, but may also be attached to a metal shutter (heavy-duty shutter) that opens and closes in the vertical direction.

[0089] For example, in the modified example shown in Figure 9(A), a water droplet receiver 30 is attached to the lower end of the metal shutter 62 of the shutter device 60. The lower end of the metal shutter 62 is formed, for example, as a lower end cylindrical portion 64 with a rectangular cross-section. The upper end 32U of the suspension portion 32 is attached to the outdoor side surface 64S of this lower end cylindrical portion 64 via a hinge portion 66. Note that the metal shutter 62 is just one example of a shutter.

[0090] The hinge portion 66 has a rotating shaft portion 66A that extends in the width direction of the sheet shutter 20. As a result, the upper end portion 32U of the suspension portion 32 is rotatably attached to the side surface 64S of the lower end cylindrical portion 64 via the hinge portion 66 in the out-of-plane direction of the metal shutter 62.

[0091] Furthermore, a caster 70 is attached to the underside of one of the protruding portions 40A of the drip receiving portion 40. The caster 70 has a rotating shaft 72 that extends in the width direction of the metal shutter 62 and is attached to the underside of the tip end of one of the protruding portions 40A.

[0092] The caster 70 protrudes downward from the lower surface of one of the overhanging portions 40A, and its rotation axis 72 is located on the outside of the sheet shutter 20. As a result, when the sheet shutter 20 is closed, the caster 70 lands on the landing surface G, and the caster 70 travels on the landing surface G toward the outside.

[0093] Here, as shown in Figure 9(A), when the metal shutter 62 descends, the caster 70 first lands on the landing surface G. From this state, as the sheet shutter 20 descends further, the water droplet receiving section 40 moves to a retracted state.

[0094] Specifically, in this modified example, the out-of-plane movement of the metal shutter 62 is restrained by a pair of guide boxes 12. Therefore, when the sheet shutter 20 is lowered, the caster 70 travels on the landing surface G toward the outside, as shown by arrow T in Figure 9(A), and the suspension part 32 tilts toward the inside of the sheet shutter 20 (towards arrow X2).

[0095] In other words, the suspension portion 32 rotates around its upper end portion 32U relative to the lower end cylindrical portion 64 toward the outdoor side of the sheet shutter 20 (towards arrow X2). As the suspension portion 32 tilts (rotates), the water droplet receiving portion 40 moves toward the outdoor side of the sheet shutter 20 relative to the lower end cylindrical portion 64, as shown in Figure 9(B). That is, the water droplet receiving portion 40 is moved to a retracted state.

[0096] As a result, the lower end of the cylindrical portion 64 at the lower end of the sheet shutter 20 touches the ground surface G, and the sheet shutter 20 is closed without any gaps. Therefore, the entry of insects and other pests into the building is suppressed.

[0097] Meanwhile, when the sheet shutter 20 rises and opens, the caster 70 travels along the landing surface G toward the interior side (arrow). This causes the water droplet receiving section 40 to change from a retracted state to a suspended state.

[0098] By providing casters 70 on the water droplet receiving section 40 in this way, the water droplet receiving section 40 can be smoothly moved from a suspended state to a retracted state.

[0099] The casters 70 may be provided as needed and can be omitted as appropriate. If the casters 70 are omitted, for example, when the metal shutter 62 is closed, the water droplet receiving section 40 slides on the landing surface G toward the outside, thereby changing from a suspended state to a retracted state.

[0100] Furthermore, in the first embodiment described above, the water droplet receiving portion 40 moves toward the outdoor side of the sheet shutter 20 relative to the lower end cylindrical portion 24 when retracted. However, for example, in Figure 4(A), the water droplet receiving portion 40 may be reversed left and right so that when retracted, the water droplet receiving portion 40 moves toward the indoor side of the sheet shutter 20 relative to the lower end cylindrical portion 24.

[0101] Furthermore, in the first embodiment described above, a lower end cylindrical portion 24 and a weight member 26 are provided at the lower end of the sheet shutter 20. However, the lower end cylindrical portion 24 and the weight member 26 may be provided only as needed and can be omitted as appropriate.

[0102] Furthermore, the water droplet receiving device 30 according to the first embodiment may be attached to an existing sheet shutter 20.

[0103] Although one embodiment of the present invention has been described above, the present invention is not limited to these embodiments, and various modifications may be used in appropriate combinations with one embodiment, and of course, the invention can be implemented in various forms without departing from the spirit of the present invention. [Explanation of Symbols]

[0104] 20-sheet shutter (shutter) 24. Lower end cylindrical part (lower end of shutter) 30. Drip tray 32. Suspension section 32S Surface (Surface on one side of the shutter in the out-of-plane direction) 40. Water droplet receiving section 44 Drainage Channel 50 Drip trays 52 Suspension section 52S Surface (Surface on one side of the shutter in the out-of-plane direction) 54 Water droplet receiving section 56 Drainage Channel 62 Metal shutter (shutter) 64. Lower cylindrical part (lower end of the shutter)

Claims

1. A suspension part is attached to the lower end of a shutter that opens and closes in the vertical direction, so as to be rotatable in the out-of-plane direction of the shutter, A water droplet receiving part is suspended from the suspension part and has a suspended state in which it receives water droplets attached to the lower end of the shutter or the suspension part, and a retracted state in which it moves out of the plane of the shutter as the suspension part rotates, allowing the lower end of the shutter to land. A drip tray equipped with a drip tray.

2. The aforementioned water droplet receiving section is As the shutter descends, the suspension part lands and tilts to one side in the out-of-plane direction of the shutter, thereby transitioning from the suspended state to the retracted state. As the shutter rises, it is lifted by the suspension part, thereby transitioning from the retracted state to the suspended state. The water droplet receiver according to claim 1.

3. The suspension portion is provided along the lower end of the shutter, The water droplet receiving portion, in the suspended state, receives water droplets that run down the surface of the shutter on one side in the out-of-plane direction on the suspension portion. The water droplet receiver according to claim 2.

4. In the retracted state of the water droplet receiving portion, the suspension portion covers the lower end of the shutter from below. The water droplet receiver according to claim 3.

5. The aforementioned water droplet receiving section has a drainage channel with a drainage slope. A water droplet receiver according to any one of claims 1 to 4.

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