JP2015048599A - Sheet shutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sheet shutter capable of achieving space saving while reinforcing a sheet.SOLUTION: A sheet shutter includes: a sheet 2; a plurality of reinforcement members 3 that are arranged at intervals in the vertical direction of the sheet 2; and lifting and lowering means 4 for lifting and lowering the sheet 2. The lifting and lowering means 4 includes: a pantograph-shaped link mechanism 6 that has a plurality of link members 8 connected together turnably in a state of crossing one another; and a driving source 7 that vertically expands/contracts the link mechanism 6. The link member 8 is attached to the reinforcement member 3.

Description

  The present invention relates to a sheet shutter installed at an open / close location or a partition location in a structure.

  At the entrances and partitions of structures such as factories and warehouses, roll-up seat shutters are used for various purposes such as maintaining indoor temperatures, preventing leaks of manufacturing gas, and preventing fire, smoke, sound, insects, and dust. Is provided. In general, a take-up type sheet shutter includes a sheet, a take-up drum capable of taking up and feeding out the sheet, and a drive source for rotating the take-up drum. When the winding drum is driven to rotate in the forward direction or the reverse direction by the driving source, the sheet is fed out or taken up from the winding drum, and the sheet moves up and down.

  Further, in this type of sheet shutter, in order to prevent the sheet from fluttering due to wind pressure, the deformation of the sheet swelling like a sail, etc., rod-shaped reinforcing members extending in the width direction of the sheet are spaced apart from each other in the vertical direction of the sheet. (See Patent Document 1).

JP 2011-252325 A

  In order to improve the wind pressure resistance of the sheet, it is desirable to dispose many reinforcing members as described above. However, on the other hand, in a retractable sheet shutter, if a large number of reinforcing members are provided, a large number of reinforcing members are interposed between the wound sheets, so that the outer diameter of the wound sheet is increased, and the installation space is increased. There is a problem of increasing. In addition, when a large number of reinforcing members are provided, the sheet is difficult to wind up, and there is a possibility that a smooth lifting operation cannot be performed.

  The present invention has been proposed in view of the above-described problems, and an object of the present invention is to provide a sheet shutter capable of realizing space saving while reinforcing the sheet.

  In order to solve the above problems, the present invention provides a seat shutter comprising a sheet, a plurality of reinforcing members arranged at intervals in the vertical direction of the sheet, and an elevating unit that elevates and lowers the sheet. The elevating means includes a pantograph-like link mechanism having a plurality of link members that are pivotably connected to cross each other, and a drive source that expands and contracts the link mechanism in the vertical direction, and the link member is the reinforcing member It is attached to.

  According to the seat shutter according to the present invention, the interval between the reinforcing members can be changed and the seat can be moved up and down by extending and contracting the pantograph-like link mechanism in the vertical direction. As described above, the seat shutter according to the present invention has a configuration in which the interval between the reinforcing members is changed by the pantograph-like link mechanism to raise and lower the seat, so that it can be installed in a plane and provided with many reinforcing members. However, it is possible to suppress the installation space from increasing in the front-rear direction.

  Further, in the seat shutter according to the present invention, in addition to providing a large number of reinforcing members, the sheet can be reinforced by the link mechanism, so that the wind pressure resistance of the sheet is improved and the fluttering of the sheet is more reliably suppressed. Will be able to.

  Further, in the case of the present invention, even if a large number of reinforcing members are provided, it is possible to perform a smooth raising / lowering operation of the seat by the pantograph-like link mechanism. In addition, the sheet can be moved up and down more quickly than a take-up type sheet shutter.

1 is an overall front view of a seat shutter according to an embodiment of the present invention, and shows a state in which an opening is closed by the seat shutter. It is a whole front view of the said sheet shutter, Comprising: It is a figure which shows the state by which the opening part was open | released by the sheet shutter. It is the cross-sectional view which cut | disconnected the sheet shutter shown in FIG. 1 by the AA line. It is the longitudinal cross-sectional view which cut | disconnected the sheet shutter shown in FIG. 2 by the BB line.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. In each of the drawings for explaining the embodiments of the present invention, constituent elements such as members and components having the same function or shape are described once by giving the same reference numerals as much as possible. Then, the explanation is omitted.

  1 and 2 are overall front views of a sheet shutter 1 according to an embodiment of the present invention. Here, a case where the sheet shutter 1 is installed in an opening 30 such as a doorway of a factory will be described as an example. FIG. 1 shows a state where the opening 30 is closed by the sheet shutter 1, and FIG. 2 shows a state where the opening 30 is opened by the sheet shutter 1. 3 is a cross-sectional view of the sheet shutter 1 shown in FIG. 1 cut along line AA, and FIG. 4 is a vertical cross-sectional view of the sheet shutter 1 shown in FIG. 2 cut along line BB. is there.

  As shown in FIGS. 1 and 2, the seat shutter 1 according to the present embodiment includes a seat 2 that opens and closes an opening 30, a plurality of reinforcing members 3 that reinforce the sheet 2, and an elevating unit 4 that raises and lowers the sheet 2. And a pair of guide rails 5 standing upright on both the left and right sides of the opening 30.

  The sheet 2 is made of a flexible sheet material, and is formed in a rectangular shape in accordance with the shape of the opening 30. In addition, the shape of the sheet | seat 2 can be changed suitably. Moreover, in this embodiment, although the sheet | seat 2 is comprised with the sheet material of 1 sheet, what joined the some sheet material may be used. A plurality of longitudinal reinforcing members 3 extending in the width direction of the sheet 2 are arranged on the front surface of the sheet 2 at predetermined intervals in the vertical direction.

  As shown in FIG. 3, both end portions of the reinforcing member 3 are inserted into the guide grooves 5a of the pair of guide rails 5, and both end portions of the reinforcing member 3 move in the guide grooves 5a. 2 moves up and down along the guide rail 5.

  As shown in FIGS. 1 and 2, the elevating means 4 includes a link mechanism 6 that can be expanded and contracted in the vertical direction and a drive source 7 that expands and contracts the link mechanism 6. The link mechanism 6 is configured in a pantograph shape having a plurality of link members 8 that intersect with each other and are rotatably connected. Each link member 8 is attached to a plurality of reinforcing members 3 by a movable pivot 9 that can move in the longitudinal direction (lateral direction) and a fixed pivot 10 that does not move in the longitudinal direction of the reinforcing member 3. Specifically, the link member 8 is attached by the fixed pivot 10 at a place where the link members 8 overlap each other on the longitudinal center line C of the reinforcing member 3 shown in FIG. A link member 8 is attached by a movable pivot 9 at a place where they overlap each other.

  In the present embodiment, a piston cylinder mechanism such as a hydraulic type or a pneumatic type having a cylinder 11 and a piston rod 12 that can advance and retreat with respect to the cylinder 11 is used as the drive source 7. The cylinder 11 and the piston rod 12 are disposed sideways on the upper side of the seat 2. In addition, one end of the link member 8 that intersects with each other is rotatably attached to the cylinder 11 via a pivot shaft 13, and the other end of the link member 8 is attached to the piston rod 12 via a pivot shaft 14. And is pivotally attached. When the piston rod 12 moves forward and backward with respect to the cylinder 11 and the piston cylinder mechanism expands and contracts in the horizontal direction as a whole, the crossing angle θ between the link members 8 that cross each other is changed, and the link mechanism 6 moves in the vertical direction. It is designed to expand and contract.

  In the present embodiment, when the piston rod 12 moves in the direction extending from the cylinder 11 from the state shown in FIG. 1 to the state shown in FIG. 2, the crossing angle θ between the link members 8 increases and the link mechanism 6 Shrink upward. As a result, the interval between the reinforcing members 3 is narrowed, and the opening 30 is opened by pulling up the sheet 2. On the contrary, as shown in FIG. 1, when the piston rod 12 moves in the direction of contraction with respect to the cylinder 11, the crossing angle θ between the link members 8 decreases and the link mechanism 6 extends downward, so that the seat 2 is lowered. Then, the opening 30 is closed.

  As shown in FIG. 4, when the sheet 2 is pulled up, the sheet 2 is bent between the reinforcing members 3. In this case, the sheet 2 bends to the side opposite to the side where the link member 8 is disposed with respect to the reinforcing member 3 (left side in FIG. 4). If the sheet 2 is pulled up to the side on which the link member 8 is disposed (the right side in FIG. 4), the sheet 2 basically interferes with the link member 8 and therefore the sheet 2 basically. Does not bend to the side where the link member 8 is disposed. However, since there is a possibility that the sheet 2 is bent toward the link member 8 at both ends in the width direction of the sheet 2 where the link member 8 is not provided, or the sheet 2 may be sandwiched between the reinforcing members 3. The member 8 may be provided with a restricting portion (not shown) such as a protrusion that restricts deformation of the sheet 2 so that the sheet 2 bends to the side opposite to the link member 8 side. Further, the width W1 of the seat 2 should be smaller than the width W2 between the pair of guide rails 5 so that the seat 2 can be prevented from interfering with the guide rails 5 when the seat 2 is bent. Desirable (see FIG. 3).

  As described above, the seat shutter according to the present invention has a configuration in which the interval between the reinforcing members is changed by the pantograph-like link mechanism to raise and lower the seat, so that it can be installed in a plane and has many reinforcing members. Even if it provides, it can suppress that an installation space increases in the front-back direction. Therefore, according to the seat shutter according to the present invention, it is possible to realize space saving particularly in the front-rear direction while reinforcing the seat as compared with the winding-type seat shutter. Thereby, for example, even in a narrow place where there is no room for arranging devices such as a seat shutter and an air curtain side by side, it is possible to install an air curtain device or the like in front of or behind the seat shutter.

  Further, in the seat shutter according to the present invention, in addition to providing a large number of reinforcing members, the sheet can be reinforced by the link mechanism, so that the wind pressure resistance of the sheet is improved and the fluttering of the sheet is more reliably suppressed. Will be able to.

  Further, in the case of the present invention, even if a large number of reinforcing members are provided, it is possible to perform a smooth raising / lowering operation of the seat by the pantograph-like link mechanism. In addition, the sheet can be moved up and down more quickly than a retractable sheet shutter. That is, the seat shutter according to the present invention is configured to raise or lower the seat by narrowing or widening the interval between the reinforcing members, and therefore, compared to a retractable sheet shutter in which the interval between the reinforcing members does not change during elevation. The seat can be moved up and down quickly.

  Note that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention. In the above-described embodiment, the case where the seat shutter according to the present invention is installed in an opening such as a doorway of a factory has been described as an example. However, it can be used as a partition in a factory or other buildings.

DESCRIPTION OF SYMBOLS 1 Sheet shutter 2 Sheet 3 Reinforcing member 4 Lifting means 6 Link mechanism 7 Drive source

Claims (1)

In a sheet shutter comprising: a sheet; a plurality of reinforcing members arranged at intervals in the vertical direction of the sheet; and a lifting unit that lifts and lowers the sheet;
The elevating means includes a pantograph-like link mechanism having a plurality of link members that are pivotably connected to each other, and a drive source that expands and contracts the link mechanism in the vertical direction.
A sheet shutter, wherein the link member is attached to the reinforcing member.

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