Shutter device and garage equipped therewith

Abstract

Even if the positional accuracy of the support columns fixed to the foundation decreases, the decrease in positional accuracy of the guide rails supported by the columns can be suppressed. [Solution] The shutter device installed in the opening of a building comprises a shutter curtain that can be rolled up and down, a pair of guide rails that guide the movement of the shutter curtain, a pair of support columns to which each guide rail is attached by a plurality of first fasteners, and a foundation that fixes the lower part of each support column. Each guide rail has two through holes, which are located at the top and bottom and through which the corresponding first fasteners are inserted, and at least one of the two through holes is an elongated hole that extends in the left-right direction.

Description

Technical Field

[0001] The present invention relates to a shutter device provided at an opening of a building and a garage equipped with the same.

Background Art

[0002] A shutter device is provided at an opening of a building (for example, an entrance or a window) and is used for adjusting and shielding light and ventilation from the outside and for security purposes. The shutter device has, for example, a shutter curtain composed of a plurality of plate materials (that is, slats), and the opening of the building can be opened and closed by winding up or down the shutter curtain.

[0003] Conventionally, as a shutter device for construction, there is known one including a shutter curtain, a pair of guide rails provided on both left and right sides of the opening and having guide grooves formed for guiding the lifting and lowering of the shutter curtain, columns to which each guide rail is fixed, and decorative plates covering the exposed portions of each guide rail fixed to the columns (see Patent Document 1).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, when installing a garage, it is common that simpler foundation work (including driving of anchors) is carried out compared with a house or an office building. Therefore, the shutter device installed in a garage tends to have lower positional accuracy of the columns fixed to the foundation compared with the case where it is installed in a house or an office building.

[0006] Therefore, when the conventional shutter device described in Patent Document 1 is used in a garage, the positional accuracy of the guide rails supported by (or provided on) the support columns may also decrease. This positional accuracy of the guide rails includes the accuracy of the spacing between pairs of guide rails and the accuracy of the inclination of each guide rail (i.e., verticality).

[0007] In conventional shutter systems, if the positional accuracy of the guide rails decreases in this way, the shutter curtain will no longer fit into the guide grooves as designed (i.e., the intended positional relationship cannot be maintained). Alternatively, in conventional shutter systems, improving the positional accuracy of the guide rails may require increased construction time or more complex construction procedures.

[0008] In view of the above background, the present invention aims to provide a shutter device and a garage equipped therewith that can suppress a decrease in the positional accuracy of the guide rails supported by the support columns, even when the positional accuracy of the support columns fixed to the foundation decreases. [Means for solving the problem]

[0009] To solve the above problems, one aspect of the present invention provides a shutter device (8) provided in an opening (7) of a building (1), comprising: a shutter curtain (16) that is provided to be able to be rolled up and rolled down; a pair of guide rails (31, 31) that guide the movement of the shutter curtain by rolling up and rolling down; a pair of support columns (5A, 5A) to which each of the guide rails is attached by a plurality of first fasteners (101A, 101B); and a foundation (2) that fixes the lower part of each of the support columns, wherein each of the guide rails has two through holes (103A, 103B) formed in its upper and lower parts, through which the corresponding first fasteners are inserted, and at least one of the two through holes is an elongated hole extending in the left-right direction.

[0010] According to this embodiment, even if the positional accuracy of the support column fixed to the foundation decreases, the worker can displace the mounting position of the guide rail on the support column, thereby suppressing the decrease in the positional accuracy of the guide rail supported by the support column.

[0011] In the above embodiment, the through-hole located at the top of each guide rail may be a round hole (103B).

[0012] According to this embodiment, the worker can easily adjust the position of the lower part of the guide rail (i.e., the mounting position to the support column by the first fastener) using the elongated hole provided in the lower part of the guide rail. Furthermore, since the worker can appropriately adjust the spacing between the lower parts of the pair of guide rails, it is possible to effectively prevent the shutter curtain from detaching from the guide rails due to wind pressure or the like. In addition, it is possible to prevent unintended contact between the shutter curtain and the guide rails caused by a decrease in the positional accuracy of the guide rails (for example, the occurrence of tilt in the vertical direction).

[0013] In the above embodiment, at least a portion of the pair of guide rails includes an exposed portion (45) located inside the opening relative to the pair of support columns, and further comprises a pair of decorative members (33, 33) attached to each of the support columns and formed to cover the front side of the exposed portion of the corresponding guide rail, wherein the mounting position of each guide rail to the corresponding support column is adjustable, such that it is not exposed from the corresponding decorative member when viewed from the front.

[0014] According to this embodiment, by suppressing the exposure of the guide rails in the front view of the building with decorative members, it is possible to maintain the aesthetic design around the openings of the building while suppressing a decrease in the positional accuracy of the guide rails supported by the pillars.

[0015] In the above embodiment, each decorative member may have a restricting portion (48) that engages with the corresponding guide rail to restrict the movement of the guide rail inward of the opening to the area that is not exposed.

[0016] According to this embodiment, the worker can easily move the guide rail within a range that does not expose it from the corresponding decorative member (i.e., easily adjust the mounting position on the support column).

[0017] In the above embodiment, each decorative member may have a front wall (48) that covers the front side of the guide rail and a mounting wall (49) that extends from the rear side of the front wall and is attached to the support column.

[0018] According to this embodiment, the decorative member can be supported by the support column through the wall to which it is attached, while the front wall maintains the aesthetic design around the opening of the building.

[0019] In the above embodiment, each guide rail may have a first flange (47B) which is fixed to the corresponding support column by the first fastener by forming the elongated hole, and each decorative member may have a second flange (49C) which is fixed to the support column together with the corresponding guide rail by the first fastener.

[0020] According to this embodiment, the worker can easily attach the guide rail and decorative member to the corresponding support column.

[0021] In the above embodiment, the second flange is formed with a through hole (104A) through which the first fastener is inserted, and the through hole is preferably a round hole.

[0022] According to this embodiment, when attaching the guide rail and decorative member to the corresponding support column, the worker can position the decorative member relative to the support column using the round hole, while easily adjusting the mounting position of the guide rail relative to the support column using the elongated hole.

[0023] In the above aspect, a shutter shaft (14) around which the shutter curtain is wound, a pair of side walls (15, 15) supporting both ends of the shutter shaft, and a reinforcing bar (19) attached to the pair of side walls so as to be spanned across the pair of side walls are further provided. The guide rail is formed with two temporary attachment holes (105A, 105B) that are arranged at intervals in the vertical direction and engage with two fastening members (122A, 122B) for position adjustment, and the reinforcing bar is formed with through holes or cutouts (24B, 25B) through which the respective fastening members for position adjustment that engage with the corresponding temporary attachment holes can be inserted.

[0024] According to this aspect, an operator can easily adjust the mounting position of the guide rail with respect to the column by using a reinforcing bar attached to a pair of side walls that support both ends of the shutter shaft.

[0025] In order to solve the above problems, an aspect of the present invention is a garage (1) in which the shutter device is provided in an opening.

[0026] According to this aspect, even when the positional accuracy of the column fixed to the foundation deteriorates, an operator can displace the mounting position of the guide rail with respect to the column, so that a decrease in the positional accuracy of the guide rail supported by the column can be suppressed.

Effect of the Invention

[0027] According to the above aspect, in a shutter device and a garage including the same, even when the positional accuracy of the column on which the guide rail is fixed deteriorates, a decrease in the positional accuracy of the guide rail supported by the column can be suppressed.

Brief Description of the Drawings

[0028] [Figure 1] It is a perspective view of a garage provided with a shutter device according to an embodiment. [Figure 2] It is a perspective view of a shutter device main body. [Figure 3]This is a cross-sectional view taken along line III-III in Figure 1. [Figure 4] This is an explanatory diagram showing the main components of the support columns and guide rails in a garage. [Figure 5] This is the first explanatory diagram showing how to attach the guide rail and decorative member to the support column. [Figure 6] This is a second explanatory diagram showing the method of attaching the guide rail and decorative member to the support column. [Figure 7] This is a third explanatory diagram showing the method of attaching the guide rail and decorative member to the support column. [Figure 8] This is the fourth explanatory diagram showing the method of attaching the guide rail and decorative member to the support column. [Figure 9] This is the fifth explanatory diagram showing the method of attaching the guide rail and decorative member to the support column. [Modes for carrying out the invention]

[0029] The following description will explain a shutter device and a garage equipped therewith according to an embodiment of the present invention, with reference to the drawings. In the following description, unless otherwise specified, the side of the opening 7 in the garage 1 shown in Figure 1 (i.e., the front side of the garage 1 shown in Figure 1) will be referred to as the "front (direction)". Furthermore, the front-to-back and left-to-right directions for the garage 1 (including its components) will be defined based on this "front (direction)". In addition, the vertical direction will be referred to as the "down (direction)", and the opposite direction as the "up (direction)".

[0030] As shown in Figure 1, the garage 1 is a prefabricated structure mainly composed of metal members such as steel plates, and is used as a garage, warehouse, and workshop. The garage 1 is installed on a foundation 2 which is laid on the ground. The foundation 2 is made of concrete and has a roughly U-shape (or roughly U-shape) that runs from the front left to the rear of the garage 1 and to the front right. In this embodiment, the foundation 2 has a so-called strip foundation structure, but it may also have a raft foundation structure. The material that makes up the foundation 2 is not limited to concrete, and other materials (stone, brick, etc.) may be used in at least a part of the foundation 2.

[0031] Garage 1 has a plurality of vertically extending support columns 5 arranged at predetermined intervals, and a plurality of wall panels 6 positioned between these support columns 5. These support columns 5 and wall panels 6 constitute the left wall, right wall, and rear wall of Garage 1, respectively. For the sake of explanation, a pair of support columns that define the left and right edges of the opening 7 will be distinguished from the other support columns 5 by being denoted by reference numeral 5A. An opening 7, which serves as an entrance, is formed on the front side of Garage 1. The opening 7 is equipped with a vertically opening and closing shutter device 8. Garage 1 also has a roof 9, which is made up of a plurality of roof panels (not shown) connected together as its upper wall.

[0032] The shutter device 8 includes a shutter device body 11 mounted above the opening 7 of the garage 1. In the garage 1, the shutter device body 11 is housed in a shutter cover 12.

[0033] As shown in Figure 2, the shutter device body 11 includes a pair of bearing brackets 15, 15 (an example of side walls) that support both ends of the shutter shaft 14, and a shutter curtain 16 attached to the shutter shaft 14. The shutter curtain 16 has a known configuration in which a plurality of slats are connected, and is provided so as to be able to be wound up and down by driving the shutter shaft 14. The shutter device 8 can open and close the opening 7 by winding up and down the shutter curtain 16. The shutter device 8 may also be equipped with a motor or the like for rotationally driving the shutter shaft 14.

[0034] Furthermore, the shutter device body 11 includes a reinforcing bar 19 that extends horizontally across a pair of bearing brackets 15, 15. The reinforcing bar 19 is formed by bending a steel plate or the like. The reinforcing bar 19 includes a protruding piece 19A located in the center in its vertical direction, an upper piece 19B connected to the upper side of the protruding piece 19A, and a lower piece 19C connected to the lower side of the protruding piece 19A. The reinforcing bar 19 has a substantially convex cross-section because its protruding piece 19A protrudes to the rear (i.e., to the front in Figure 2). Two bolt holes 21A and 21B are formed in the rear wall of each bearing bracket 15, spaced apart in the vertical direction. Both ends of the reinforcing bar 19 are fixed to the bearing brackets 15 by bolts 22A and 22B that are attached to the two bolt holes 21A and 21B, respectively.

[0035] The left and right ends of the upper piece 19B each have first notches 24A which engage with the shaft of the upper bolt 22A that is attached to the upper bolt hole 21A. The first notches 24A have an arc-shaped upper section, a middle section of a certain width, and a tapered lower section that gradually widens towards the bottom. The left and right ends of the lower piece 19C each have first through holes 25A through which the lower bolt 22B is inserted. The first notches 24A and the first through holes 25A are positioned vertically at approximately the same location in the left-right direction of the reinforcing bar 19. Note that the reinforcing bar 19 may have holes similar to the first through holes 25A instead of the first notches 24A.

[0036] The reinforcing bar 19 contributes to the reinforcement of the shutter device body 11 by being ultimately fixed to the bearing bracket 15. However, as will be described later, the reinforcing bar 19 is also used as a positioning bracket to position the guide rail 31 relative to the support column 5A (i.e., to adjust the mounting position) before being fixed to the bearing bracket 15.

[0037] Referring again to Figure 1, the shutter device 8 includes a pair of guide rails 31 that guide the movement of the shutter curtain 16 by winding it up and down. The pair of guide rails 31 accommodate the left and right sides (or edges) of the shutter curtain 16. Note that only the right guide rail 31 is shown in Figure 1. Each guide rail 31 is attached to the corresponding support column 5A. In other words, each support column 5A not only functions as a structural member of the garage 1 but also constitutes part of the shutter device 8. The lower part of each support column 5A (and similarly, support column 5) is fixed to the foundation 2 of the garage 1. Note that each guide rail 31 may also be indirectly attached to the corresponding support column 5A via other members such as brackets.

[0038] Furthermore, the shutter device 8 includes a pair of decorative members 33 that are attached to each support column 5A and are formed to cover the front side of the exposed portion of each corresponding guide rail 31. In a front view of the garage 1 (i.e., when the garage 1 is viewed from the front), the guide rails 31 are shielded by the decorative members 33. Note that each decorative member 33 may be indirectly attached to the corresponding support column 5A via other members such as brackets.

[0039] As shown in Figure 3, each of the pair of support columns 5A is formed by bending a steel plate and has the same structure except that they are symmetrical to each other. In the horizontal cross-section shown in Figure 3, each support column 5A has a front wall 41, an inner wall 42 connected to the inner edge of the front wall 41, and an outer wall 43 connected to the outer edge of the front wall 41.

[0040] The front wall 41 of the support column 5A includes a main piece 41A extending substantially perpendicularly in the front-rear direction and a secondary piece 41B extending inward and rearward from the inner edge of the main piece 41A. The inner wall 42 includes a main piece 42A extending substantially perpendicularly in the left-right direction and a secondary piece 42B extending outward from the rear edge of the main piece 41A, substantially parallel to the main piece 41A of the front wall 41. Furthermore, the outer wall 43 includes a main piece 43A extending substantially perpendicularly in the left-right direction and a secondary piece 43B extending inward from the rear edge of the main piece 41A and bending forward to form a substantially L-shape. The secondary piece 43B corresponds to a partial rear wall of the support column 5A.

[0041] The sub-piece 42B of the inner wall 42 has a bolt hole 102A (an example of a mounting hole) that engages with a bolt 101A (an example of a first fastener) for attaching the guide rail 31 and the decorative member 33. The bolt hole 102A has an internal thread that the external thread of the bolt 101A is screwed into. In other words, the sub-piece 42B functions as a flange for attaching the guide rail 31 and the decorative member 33 to the support column 5A. Note that the term "bolt" used as a fastener for fixing the components of the garage 1 also includes "screws". In addition, rivets and pins may be used as part of such fasteners.

[0042] A bolt 101A is screwed into the bolt hole 102A from the rear (i.e., from the inside of the garage 1). The shaft of the screwed-in bolt 101A extends in approximately the front-to-back direction. The bolt hole 102A may be formed as a through hole, in which case the guide rail 31 and decorative member 33 may be attached to the sub-piece 42B by bolt 101A and nut.

[0043] Each pair of guide rails 31 is formed by extrusion (or bending of steel plate) of a metal material (in this case, aluminum) and has the same structure except that it is symmetrical to the other. In the horizontal cross-section shown in Figure 3, each guide rail 31 has a front wall 45, a rear wall 46 extending generally parallel to the front wall 45, and a side wall 47 connecting the outer edges of the front wall 45 and the rear wall 46. The front wall 45, the rear wall 46, and the side wall 47 define a guide groove that is roughly U-shaped.

[0044] The front wall 45 of the guide rail 31 extends inward from the front edge (i.e., base end) of the side wall 47 and extends substantially perpendicular to the front-rear direction. The front wall 45 (an example of an exposed portion) is exposed to the outside when the decorative member 33 is not installed, in a front view of the garage 1. A gap brush 51A is attached to the tip (i.e., free end) of the front wall 45, extending from its rear surface toward the rear wall 46. In addition, a locking claw 53A is provided at the tip of the front wall 45, adjacent to the outside of the gap brush 51A, and extending from its rear surface toward the rear wall 46.

[0045] The rear wall 46 of the guide rail 31 extends inward from the rear edge (i.e., base end) of the side wall 47 and extends substantially perpendicular to the front-rear direction. A gap brush 51B is attached to the tip (i.e., free end) of the rear wall 46, extending from its front surface toward the front wall 45. The gap brushes 51A and 51B are arranged to face each other. When the shutter curtain 16 (not shown here) is housed in the guide rail 31, the gap brushes 51A and 51B come into contact with its front and rear surfaces, respectively.

[0046] Furthermore, a locking claw 53B is provided at the tip of the rear wall 46, extending from its front surface toward the front wall 45, adjacent to the outside of the gap brush 51B. The locking claws 53A and 53B are arranged facing each other and can be locked to the locking portions (e.g., recesses) on the front and rear surfaces of the housed shutter curtain 16 (not shown here), respectively. The locking claws 53A and 53B prevent the shutter curtain 16 from detaching from the guide groove of the guide rail 31.

[0047] The side wall 47 of the guide rail 31 includes a main piece 47A extending in the front-rear direction and a secondary piece 47B having a base end connected to the middle of the main piece 47A and extending outward. The secondary piece 47B extends approximately parallel to the secondary piece 42B of the support column 5A. A through hole 103A (an example of a mounting hole) is formed in the secondary piece 47B of the guide rail 31 through which a bolt 101A is inserted. In other words, the secondary piece 47B (an example of a first flange) functions as a flange for attaching the guide rail 31 to the support column 5A. The through hole 103A is preferably positioned so that its center position approximately coincides with the center position of the bolt hole 102A when viewed from the front-rear direction. As will be described in detail later, the through hole 103A is an elongated hole extending in the left-right direction. However, the through hole 103A is not limited to an elongated hole extending in a straight line, but may also be a curved elongated hole.

[0048] Each of the pair of decorative members 33 is formed by extrusion (or bending of a steel plate) of a metal material (in this case, aluminum) and has the same structure except that it is symmetrical to the other. In the horizontal cross-section shown in Figure 3, each decorative member 33 includes a front wall 48 and a mounting wall 49 that has a base end connected to the middle part of the rear side of the front wall 48 and extends outward while bending diagonally backward.

[0049] The front wall 48 of the decorative member 33 is positioned at an angle towards the support column 5A diagonally forward, starting from near the tip of the front wall 45 on the guide rail 31, in the horizontal cross-section shown in Figure 3. The front wall 48 has an inner end 48A (an example of a restricting portion) located near the tip of the front wall 45 on the guide rail 31, and an outer end 48B that abuts against the front edge of the inner wall 42 of the support column 5A. The inner end 48A has a shape that curves backward so as to cover the inside of the tip of the front wall 45 on the guide rail 31. The outer end 48B does not necessarily need to abut against the wall of the support column 5A, but only needs to be close to the front wall 41 or inner wall 42 of the support column 5A.

[0050] The mounting wall 49 of the decorative member 33 includes a first piece 49A that is connected to the middle of the back surface (i.e., rear surface) of the front wall 48 in the horizontal cross-section shown in Figure 3 and extends in the left-right direction along the front surface of the front wall 45 of the guide rail 31. Furthermore, the mounting wall 49 includes a second piece 49B that extends rearward from the outer edge of the first piece 49A and a third piece 49C that extends outward from the rear edge of the second piece 49B. The second piece 49B extends along the outer surface of the main piece 47A on the side wall 47 of the guide rail 31. The third piece 49C extends substantially parallel to the sub-piece 42B of the support column 5A and the sub-piece 47B of the guide rail 31, and is sandwiched between the sub-pieces 42B and 47B in the front-rear direction. The third piece 49C has an insertion hole 104A through which a bolt 101A is inserted. In other words, the third piece 49C (an example of the second flange) functions as a flange for attaching the decorative member 33 to the support column 5A. The through hole 104A is preferably positioned so that, when viewed from the front-to-back direction, its center position substantially coincides with the center positions of the bolt hole 102A and the through hole 103A. The through hole 104A is a round hole having a diameter that is the same as or slightly larger than the diameter of the shaft of the bolt 101A.

[0051] As shown in Figure 4, the side wall 47 (sub-piece 47B) of the guide rail 31 has a through hole 103A formed at its lower part (see also Figure 3), as well as a through hole 103B formed at its upper part. The through holes 103A and 103B are arranged at a predetermined interval in the vertical direction and are used to attach the guide rail 31 to the support column 5A. The through hole 103A does not need to be formed as a strictly elongated hole; it may be formed as a round hole with a larger diameter than the through hole 103B. The through hole 103B is a round hole with a diameter equal to or slightly larger than the diameter of the shaft of the bolt 101B.

[0052] Furthermore, the rear wall 46 of the guide rail 31 has two through holes 105A and 105B (an example of temporary mounting holes) formed at its lower part. The through holes 105A and 105B are arranged at a predetermined distance from each other in the vertical direction. However, the through holes 105A and 105B may be configured as bolt holes (or screw holes).

[0053] The inner wall 42 (sub-piece 42B) of the support column 5A has a bolt hole 102A formed at its lower part (see also Figure 3), as well as a bolt hole 102B (an example of a mounting hole) formed at its upper part. The bolt holes 102A and 102B are arranged at a predetermined interval in the vertical direction and are used to attach the guide rail 31 and decorative member 33 to the support column 5A. The through hole 103B of the guide rail 31 (sub-piece 47B) is positioned similarly to the through hole 103A so that, when viewed from the front-to-back direction, its center position approximately coincides with the center of the bolt hole 102B.

[0054] Furthermore, the inner wall 42 (sub-piece 42B) of the support column 5A may have additional bolt holes 102C-102E (an example of mounting holes) at predetermined intervals between the two bolt holes 102A and 102B. In that case, the inner wall 42 of the support column 5A will have through holes similar to the through holes 103A or 103B, corresponding to the bolt holes 102C-102E. This allows the guide rail 31 to be fixed to the support column 5A by bolts at three or more positions.

[0055] Each support column 5A is supported by a foundation 2, which has anchor bolts 61 extending upward from its upper surface. A foundation bracket 63 is fixed to the anchor bolts 61 by nuts 62. A base plate 64 is attached to the foundation bracket 63 by bolts (not shown) so as to cover the upper part of the foundation 2, including the anchor bolts 61. Furthermore, the lower part of the support column 5A is fixed to the base plate 64 by bolts (not shown). In other words, the support column 5A is fixed to the anchor bolts 61 of the foundation 2 via the foundation bracket 63 and the base plate 64 (i.e., indirectly). However, the support column 5A may also be directly fixed to the anchor bolts 61.

[0056] Next, with reference to Figures 5-9, the method for attaching the guide rail 31 and decorative member 33 to the support column 5A will be described.

[0057] As shown in Figure 5, first, the worker (not shown) positions themselves so that the front surface of the third piece 49C on the wall 49 to which the decorative member 33 is attached overlaps with the rear surface of the sub-piece 42B on the inner wall 42 of the support column 5A. Furthermore, the worker positions themselves so that the front surface of the side wall 47 of the guide rail 31 overlaps with the rear surface of the third piece 49C. At this time, when viewed from the front-rear direction, the bolt hole 102B of the support column 5A, the insertion hole 104B of the decorative member 33, and the through hole 103B of the guide rail 31 are aligned. The worker screws a bolt 101B (an example of a first fastener) through the through hole 103B and the insertion hole 104B into the bolt hole 102B. This attaches the upper parts of the guide rail 31 and the decorative member 33 to the support column 5A (i.e., temporarily fixes them). Note that the worker is not limited to a person; it may be a robot or other device capable of performing similar actions.

[0058] At this time, the bolt 101B is incompletely screwed into the bolt hole 102B. In other words, at least the upper part of the guide rail 31 is attached to the support column 5A, and it is rotatable around the axis of the bolt 101B. By rotating the guide rail 31, the worker can adjust the position of the lower part of the guide rail 31 (or the inclination of the guide rail 31).

[0059] Next, the worker adjusts the position of the guide rail 31 using the reinforcing bar 19, which will later be attached to the shutter device body 11.

[0060] To adjust the position of the guide rail 31, as shown in Figure 6, both ends of the reinforcing bar 19 are temporarily fixed to the lower part of the guide rail 31 by bolts 122A and 122B (an example of fasteners for position adjustment).

[0061] At both ends of the reinforcing bar 19, in addition to the first notch 24A and first through-hole 25A described above, a second notch 24B and a second through-hole 25B are formed. The second notch 24B and the second through-hole 25B are positioned inward (towards the center of the reinforcing bar 19) than the first notch 24A and the first through-hole 25A, respectively. The second notch 24B and the second through-hole 25B are positioned vertically at approximately the same position in the left-right direction of the reinforcing bar 19. When viewed from the front-rear direction, the second notch 24B and the second through-hole 25B overlap with the two through-holes 105A and 105B of the guide rail 31 (see Figure 4), respectively.

[0062] When temporarily fixing the reinforcing bar 19, the worker temporarily fastens the bolt 122A through the through hole 105A (see Figure 4) in the guide rail 31, as shown in Figures 7(A) and (B). Then, the worker inserts the shaft of the bolt 122A through the second notch 24B of the reinforcing bar 19 and engages the second notch 24B with the shaft. As a result, the reinforcing bar 19 is supported by the pair of guide rails 31 (i.e., hooked onto the bolt 122A), and the distance between the pair of guide rails 31 (i.e., the opening dimension) becomes a predetermined value. As a result, the width in the left-right direction of the part of the pair of guide rails 31 to which the reinforcing bar 19 is attached is adjusted according to the length of the reinforcing bar 19 (more specifically, the distance between the left and right second notches 24B and the second through hole 25B). In other words, by using the reinforcing bar 19, the worker can set the distance between the pair of guide rails 31 to a predetermined value.

[0063] Furthermore, while checking the inclination of the pair of guide rails 31, the worker inserts the bolt 122B into the through hole 105B (see Figure 4) in the guide rail 31 and tightens it, as shown in Figure 8. At this time, the bolt 101A shown in Figure 3 is in a state of temporary engagement with the bolt hole 102A (i.e., incompletely screwed in). The worker can adjust the position (inclination) of the guide rail 31 by rotating the guide rail 31 around the axis of the bolt 101B within the range in which the shaft of the bolt 101A can move within the through hole 103A (i.e., the elongated hole).

[0064] More specifically, the guide rail 31 is provided so as to be movable outward within a range of interval G1 from the standard position shown in Figure 3. Therefore, as shown in Figure 9(A), for example, the guide rail 31 can be moved outward relative to the support column 5A from the standard position (intermediate position) shown in Figure 3 during position adjustment. At this time, the guide rail 31 is in the first position, and its side wall 47 (main piece 47A) is in contact with the mounting wall 49 (second piece 49B). This more reliably restricts the outward movement of the guide rail 31.

[0065] Furthermore, the guide rail 31 is provided so as to be movable inward within a range of interval G2 from the standard position shown in Figure 3. Therefore, as shown in Figure 9(B), for example, the guide rail 31 can be moved inward relative to the support column 5A from the standard position (intermediate position) shown in Figure 3 during position adjustment. At this time, the guide rail 31 is in the second position, and the tip of its front wall 45 abuts against the rearward-curving inner end 48A of the front wall 48 of the decorative member 33. This more reliably restricts the inward movement of the guide rail 31.

[0066] In the example shown in Figure 6, a pair of embedding holes 71 are provided in the ground where the garage 1 will be installed. The front ends of the foundation 2 and the support columns 5A are inserted into the left and right embedding holes 71, respectively. Finally, once the position adjustment of the guide rail 31 is complete, the worker pours concrete into the embedding holes 71, completing the attachment of the guide rail 31 and decorative members 33 to the support columns 5A.

[0067] In this way, after adjusting the position of the guide rail 31, the worker can fully screw the bolts 101A and 101B into the bolt holes 102A and 102B, respectively. This ensures that the guide rail 31 is attached to the support column 5A in the correct position. As a result, even if the positional accuracy of the support column 5A fixed to the foundation 2 decreases (if there is a slight tilt), the decrease in the positional accuracy of the guide rail 31 supported by the support column 5A can be suppressed without compromising the aesthetic appearance.

[0068] Although the present invention has been described above based on specific embodiments, these embodiments are merely illustrative, and the present invention is not limited to these embodiments. Not all components of the shutter device and garage equipped therewith shown in the above embodiments are necessarily essential, and at least those skilled in the art can appropriately select and omit them as long as they do not deviate from the scope of the present invention.

[0069] For example, at least some of the components constituting the garage 1 and the shutter device 8 are not limited to metal, but can be made of other known materials (e.g., resin). Furthermore, while the shutter device 8 is preferably installed in the garage 1, it is not limited to this and can be installed in any opening of any building.

[0070] Furthermore, in the above-described embodiment, an example is shown in which each support column 5A, each guide rail 31, and each decorative member 33 are integrally constructed. However, each support column 5A may be composed of multiple members (or parts) in such a way that it can directly or indirectly support the guide rail 31. Similarly, the guide rail 31 may be composed of multiple members (or parts) in such a way that it can define a guide groove into which the side portion of the guide rail 31 is housed. Furthermore, each decorative member 33 may be composed of multiple members (or parts) in such a way that it covers at least the front side of a portion of the guide rail 31.

[0071] Furthermore, although this embodiment shows an example in which the shutter device 8 is applied to the garage 1, the shutter device according to the present invention is not limited to garages and can be applied to other buildings (warehouses, workshops, etc.) that have a similar configuration. [Explanation of Symbols]

[0072] 1: Garage 2: Basics 5,5A: Strut 7: Opening 8: Shutter device 11: Shutter device body 14: Shutter shaft 15: Bearing bracket 16: Shutter Curtain 19: Reinforcement bar 21A, 21B: Bolt holes 22A, 22B: Bolt 24A: First notch 24B: Second notch 25A: First through hole 25B: Second through hole 31: Guide rail 33: Decorative materials 41: Front wall 42:Inner wall 43: Exterior wall 45: Front wall 46: Back wall 47: Side wall 47A: Main Feature 47B: Secondary Film 48: Anterior wall 49: Being taken away from the wall 49A: The first piece 49B: Second piece 49C: 3rd piece 101A,101B:ボルト 102A,102B: ボルト hole 103A, 103B: Through holes 104A, 104B: Through-hole 105A, 105B: Connecting acupoints 122A,122B:ボルト

Claims

1. A shutter device installed in an opening of a building, A shutter curtain that can be rolled up and down, A pair of guide rails that guide the movement of the shutter curtain by winding it up and winding it down, Each of the aforementioned guide rails is attached to a pair of support columns by a plurality of first fasteners, The base that secures the lower part of each of the aforementioned support posts Equipped with, Each of the guide rails has two through holes, one at its upper and one at its lower part, through which the corresponding first fastener is inserted. A shutter device wherein at least one of the two through holes is an elongated hole extending in the left-right direction.

2. The shutter device according to claim 1, wherein the through holes located at the top of each of the guide rails are round holes.

3. At least a portion of the pair of guide rails includes an exposed portion located inside the opening, Each of the aforementioned support columns is further equipped with a pair of decorative members, each attached to the respective support column and formed to cover the front side of the exposed portion of the corresponding guide rail, The shutter device according to claim 1 or 2, wherein each of the guide rails is adjustable in its mounting position to the corresponding support column, such that it is not exposed from the corresponding decorative member when viewed from the front.

4. The shutter device according to claim 3, wherein each decorative member has a restricting portion that engages with the corresponding guide rail to restrict the movement of the guide rail inward of the opening to the area that is not exposed.

5. The shutter device according to claim 3, wherein each decorative member has a front wall that covers the front side of the guide rail and a mounting wall that extends from the rear side of the front wall and is attached to the support column.

6. Each of the guide rails has a first flange, which is fixed to the corresponding support column by the first fastener, by forming the elongated hole. The shutter device according to claim 3, wherein each decorative member has a second flange that is fixed to the support column together with the corresponding guide rail by the first fastener.

7. The shutter device according to claim 6, wherein the second flange has a through hole through which the first fastener is inserted, and the through hole is a round hole.

8. The shutter shaft around which the aforementioned shutter curtain is wrapped, A pair of side walls supporting both ends of the shutter shaft, Reinforcing bars are attached to the pair of side walls so as to span across the pair of side walls. Furthermore, The guide rail has two temporary mounting holes that are spaced apart in the vertical direction and engage with two fasteners for position adjustment. The shutter device according to claim 1 or claim 2, wherein the reinforcing bar has through holes or notches through which each of the position-adjusting fasteners that engage with the corresponding temporary mounting holes can be inserted.

9. A garage in which the shutter device according to claim 1 or claim 2 is provided in the opening.

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