Structure of opening / closing device

Abstract

To easily attach a new take-up section to an existing bearing by dispensing with drilling work, to improve versatility, to shorten construction time, and to improve workability.SOLUTION: In a structure of an opening / closing body device, bearings 33 are fixed to brackets 35 opposed to each other across an opening 21, and a connecting end 43, which is the end of a take-up section 25 around which an opening / closing body 27 for opening / closing the opening 21 is taken up, is connected to each bearing 33. The bearing 33 is formed by a pair of parallel side plates and a bottom plate and fixed to the bracket 35 so that its U-shaped open side faces upward, one connecting end 43 has a connecting member 65, the connecting member 65 has a base section 71 mounted to the connecting end 43 and an insertion section 73 protruding from the base section 71 toward the bearing 33, supported by the bottom plate of the bearing 33, and provided with a fixing hole 77 communicating with a through hole formed in the side plate, and the base section 71 is mounted so as not to rotate relative to the connecting end 43 and to be slidable in the axial direction of the take-up section 25.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a structure of an opening / closing body device. [Background technology]

[0002] Conventionally, a winding device for an architectural opening and closing device that allows an electric shutter device with an electric motor built in to be attached to an existing manual shutter device is known (see Patent Document 1). This winding device for an architectural opening and closing device is designed for a manual winding device in which a bracket that supports the winding device on which the opening and closing body is wound on the building structure side is formed with a fixed shaft support part that locks and fixes the fixed shaft of a manual winding device that has a drum and a fixed shaft that rotatably supports the drum, and in supporting the electric winding device in which an electric motor is built in so as to be rotatable relative to one end of the drum, an adapter member with a shaft part that locks and fixes to the fixed shaft support part of the bracket is provided at the end of the electric motor. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2004-257063 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, when the shaft of the adapter member is fixed to the fixed shaft support part of the bracket (hereinafter referred to as "bearing"), the screw holes formed in the fixed shaft and the shaft of the adapter member are aligned to communicate with the screw holes opened in the bearing, and bolts are inserted into these screw holes and fastened with nuts. However, it is difficult to completely grasp the screw hole positions of the bearing when dealing with products from other companies. In other words, since the hole positions were previously set based on the assumption that the bearing would be attached to the company's own bearing, the hole positions did not match when dealing with products from other companies, and installation was not possible. In addition, if additional work was done to re-drill holes in the bearing on site, the work would take time, and the workability would also be reduced, as the work would require drilling holes at a high altitude, especially in thick structural materials (bearings) that support the maximum load.

[0005] The present invention has been made in consideration of the above-mentioned circumstances, and its purpose is to provide an opening / closing body device structure that allows a new winding section to be easily attached to an existing bearing, whether the existing bearing is made by the same company or another company, without the need for on-site drilling, thereby improving versatility, shortening installation time, and improving installation ease. [Means for solving the problem]

[0006] Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments. The structure of the opening / closing body device according to claim 1 of the present invention is a structure of an opening / closing body device in which bearings 33 are fixed to brackets 35 that are fixed to a building frame 31 and face each other across an opening 21 of the building, and each of the bearings 33 is connected to a connecting end 43 that is an end of a winding part 25 around which an opening / closing body 27 that opens and closes the opening 21 is wound, The bearing 33 is fixed to the bracket 35 with the open side of the U-shape, in which the lower ends of a pair of parallel side plates 67 are connected to a bottom plate 69, facing upward. At least one of the connecting ends 43 has a connecting member 65, The connecting member 65 is A base portion 71 attached to the connecting end portion 43; an insertion portion 73 that protrudes from the base 71 toward the bearing 33 and is supported by the bottom plate 69 of the bearing 33 and has a fixing hole 77 that communicates with a through hole 75 formed in the side plate 67; The base portion 71 is attached so as to be unrotatable relative to the connecting end portion 43 and slidable in the axial direction of the winding portion 25.

[0007] This structure of the opening / closing body device makes it easy to attach a new winding unit 25 to the existing bearing 33. In the opening / closing body device (shutter device) 11, the original manual opening / closing unit is replaced with a winding unit 25 called a "retrofit motorization kit" to modify it into an electrically operated one. In this case, the bearing 33 fixed to the main body 31 side is left as it is, and the motorized winding unit 25 equipped with a motor is attached to the bearing 33. The new winding unit 25 has an end that is a non-rotating connecting end 43 that is different from the rotating winding body 41. At least one of the connecting ends 43 at both ends has a connecting member 65. When one connecting end 43 of the winding unit 25 has the connecting member 65, the other connecting end 43 becomes the same shaft 45 as in the manual operation. In other words, the shaft 45 can be attached to the existing bearing 33 in the same manner as before. On the other hand, the connecting member 65 has a base 71 attached to the connecting end 43, and an insertion portion 73 that protrudes from the base 71 toward the bearing 33 and is supported by the bottom plate 69 of the bearing 33. After the shaft 45 at the other connecting end 43 of the new winding unit 25 is placed on the bottom plate 69 of the bearing 33 and attached, the insertion portion 73 of the connecting member 65 at one connecting end 43 is placed on the bottom plate 69 of the bearing 33, and both ends are placed on the bearing 33 and fixed. The shaft 45 provided at the other connecting end 43 has a fixing hole 77 passing through in the diameter direction (horizontal direction). The fixing hole 77 of the shaft 45 coincides with through holes 75 formed in a pair of side plates 67 of the bearing 33. The shaft 45 is fastened to the bearing 33 with a through bolt that is passed through the through hole 75 of the bearing 33 and inserted into the coinciding fixing hole 77. When the insertion portion 73 of the connection member 65 connected to one of the connection ends 43 is placed on the bottom plate 69 of the bearing 33, the fixing hole 77 may not match the through hole 75 provided in the side plate 67 of the bearing 33. In other words, the distance between the opposing bearings 33 may not match the length of the new winding portion 25 (total length in the axial direction). This mismatch between the fixing hole 77 and the through hole 75 occurs due to construction errors, etc., even in the case of in-house manufacturing, but is particularly noticeable in the case of bearings 33 made by other companies. Therefore, in the structure of the opening / closing body device, base 71 of connecting member 65 is attached so as to be unrotatable relative to linking end 43 and slidable in the axial direction of winding part 25. In other words, in the new winding part 25, base 71 of connecting member 65 is slidable relative to linking end 43, so that the distance between fixing hole 77 of shaft 45 at the other end and fixing hole 77 of insertion part 73 at one end can be changed. In other words, since the insertion part 73 is expandable and contractible in the axial direction of the winding part 25, it is possible to adjust it with respect to the through hole 75 of the bearing 33, and it is possible to align the fixing hole 77 of the insertion part 73 with the through hole 75 of the bearing 33. This makes drilling on-site unnecessary, and the fixing hole 77 of the insertion part 73 can be aligned with the through hole 75 of the bearing 33 by a simple adjustment of simply sliding the insertion part 73, making it possible to complete the connection work easily and in a short time.

[0008] The structure of the opening / closing body device according to claim 2 of the present invention is a structure of an opening / closing body device in which bearings 33 are fixed to brackets 35 that are fixed to a building frame 31 and face each other across an opening 21 of the building, and each of the bearings 33 is connected to a connecting end 43 that is an end of a winding part 25 around which an opening / closing body 27 that opens and closes the opening 21 is wound, The bearing 33 is fixed to the bracket 35 with the open side of the U-shape, in which the lower ends of a pair of parallel side plates 67 are connected to a bottom plate 69, facing upward. At least one of the connecting ends 43 has a connecting member 65, The connecting member 65 is A base portion 71 attached to the connecting end portion 43; an insertion portion 73 that protrudes from the base 71 toward the bearing 33 and is supported by the bottom plate 69 of the bearing 33 and has a fixing hole 77 that communicates with a through hole 75 formed in the side plate 67; The fixing holes 77 are provided in a plurality of locations along the axis of the winding portion 25 , and any one of the fixing holes 77 communicates with the through hole 75 of the bearing 33 .

[0009] In this structure of the opening / closing body device, when the opening / closing body device is modified to an electric one, one of the coupling ends 43 of the new winding section 25 has a connection member 65. The other coupling end 43 may be provided with the previous shaft 45. The connection member 65 has a base 71 attached to the coupling end 43 and an insertion part 73 that protrudes from the base 71 toward the bearing 33 and is supported by the bottom plate 69 of the bearing 33. When the insertion portion 73 is placed on the bottom plate 69 of the bearing 33 , the fixing hole 77 may not coincide with the through hole 75 provided in the side plate 67 of the bearing 33 . Therefore, in the structure of the opening / closing body device, a plurality of fixing holes 77 are provided in the direction along the axis of the winding portion 25. In other words, the new winding portion 25 can use any one of the plurality of fixing holes 77 provided in the insertion portion 73 to match the through hole 75 provided in the existing bearing 33 with the fixing hole 77. Note that the "plural" may be two or more. For example, if the fixing hole 77 made by the company is in the same position and the fixing hole 77 made by another company is in the same position different from the fixing hole 77 made by the company, the number of variations in the fixing hole position is two. In this case, it is sufficient that two fixing holes, the fixing hole 77 made by the company and the fixing hole 77 made by another company, are provided in the insertion portion 73. The fixing holes 77 can be provided in this way according to the variations. This eliminates the need for drilling holes on-site, and allows the fixing holes 77 to be easily aligned with the through holes 75 of the bearings 33, making it possible to complete the connection work in a short time with easy work. Furthermore, with this structure of the opening / closing body device, the adjustment function is achieved simply by drilling a plurality of fixing holes 77 in the insertion portion 73 of the connecting member 65, so there is no need to create a complex structure for adjustment, and the structure of the opening / closing body device can be simplified, making it possible to increase versatility and ease of work at low cost.

[0010] The structure of the opening / closing body device according to claim 3 of the present invention is a structure of an opening / closing body device in which bearings 33 are fixed to brackets 35 that are fixed to a building frame 31 and face each other across an opening 21 of the building, and each of the bearings 33 is connected to a connecting end 43 that is an end of a winding part 25 around which an opening / closing body 27 that opens and closes the opening 21 is wound, The bearing 33 is fixed to the bracket 35 with the open side of the U-shape, in which the lower ends of a pair of parallel side plates 67 are connected to a bottom plate 69, facing upward. At least one of the connecting ends 43 has a connecting member 65, The connecting member 65 is A base portion 71 attached to the connecting end portion 43; an insertion portion 73 that protrudes from the base 71 toward the bearing 33 and is supported by the bottom plate 69 of the bearing 33 and has a fixing hole 77 that communicates with a through hole 75 formed in the side plate 67; The fixing hole 77 is formed as a long hole 93 that is long in the axial direction of the winding portion 25 , and is characterized in that the fixing hole 77 communicates with the through hole 75 of the bearing 33 .

[0011] In this structure of the opening / closing body device, when the opening / closing body device is modified to an electric one, one of the coupling ends 43 of the new winding section 25 has a connection member 65. The other coupling end 43 may be provided with the previous shaft 45. The connection member 65 has a base 71 attached to the coupling end 43 and an insertion part 73 that protrudes from the base 71 toward the bearing 33 and is supported by the bottom plate 69 of the bearing 33. When the insertion portion 73 is placed on the bottom plate 69 of the bearing 33 , the fixing hole 77 may not coincide with the through hole 75 provided in the side plate 67 of the bearing 33 . Therefore, in the structure of the opening / closing body device, the fixing hole 77 is formed as an elongated hole 93 that is long in the axial direction of the winding part 25. In other words, by utilizing the elongated hole 93 provided in the insertion part 73, the new winding part 25 can align the through hole 75 provided in the existing bearing 33 with any position in the longitudinal direction of the fixing hole 77 that has become the elongated hole 93. This eliminates the need for drilling holes on-site, allows the fixing holes 77 to be easily aligned with the through holes 75 of the bearings 33, and enables the connection work to be completed in a short time with easy work. Furthermore, with this structure of the opening / closing body device, the adjustment function is achieved simply by drilling the elongated holes 93 in the insertion portion 73 of the connecting member 65, so there is no need to create a complex structure for adjustment, and the structure of the opening / closing body device can be simplified, making it possible to increase versatility and ease of work at low cost.

[0012] The structure of an opening / closing body device according to claim 4 of the present invention is the structure of the opening / closing body device according to claim 3, The longitudinal direction of the elongated hole 93 which is the fixing hole 77 is inclined with respect to the axial direction of the winding portion 25.

[0013] In the structure of this opening / closing body device, the longitudinal direction of the fixing hole 77 formed by the elongated hole 93 is inclined with respect to the axial direction of the winding part 25. In other words, by utilizing the inclined elongated hole 93 provided in the insertion part 73, the new winding part 25 can align the through hole 75 provided in the existing bearing 33 with any position in the longitudinal direction of the fixing hole 77 that has become the inclined elongated hole 93. As a result, even if the through hole 75 of the bearing 33 is provided at a different height from the bottom plate 69, the fixing hole 77 can be easily aligned with the through hole 75 of the bearing 33. When the fixing hole 77, which is an inclined long hole 93, is fastened together with the insertion portion 73 by a bolt 89 passing through the side plate 67 of the bearing 33, the inclined fixing hole 77 does not shift with respect to the through hole 75. As a result, it is possible to restrict the misalignment of the insertion portion 73 with respect to the bearing 33, such as in the direction in which it comes out.

[0014] The structure of an opening / closing body device according to claim 5 of the present invention is the structure of the opening / closing body device according to claim 1, The fixing holes 77 are provided in a plurality of locations spaced apart in the axial direction of the winding portion 25 , and any one of the fixing holes 77 communicates with the through hole 75 of the bearing 33 .

[0015] In this structure of the opening / closing body device, the connection member 65 is slidable relative to the winding section 25, and any one of the multiple fixing holes 77 communicates with the through hole 75 of the bearing 33. In this structure of the opening / closing body device, the new winding section 25 can use any one of the multiple fixing holes 77 provided in the insertion section 73 to match the through hole 75 and the fixing hole 77 provided in the existing bearing 33. In addition, the insertion section 73 is slidable relative to the winding section 25. In other words, the positions of the multiple fixing holes 77 can be further adjusted by sliding the insertion section 73. This allows the new winding section 25 to be compatible with a wider variety of bearings 33.

[0016] The structure of an opening / closing body device according to claim 6 of the present invention is the structure of the opening / closing body device according to claim 1, The fixing hole 77 is formed as a long hole 93 that is long in the axial direction of the winding portion 25 , and is characterized in that the fixing hole 77 communicates with the through hole 75 of the bearing 33 .

[0017] In this structure of the opening / closing body device, the connection member 65 is slidable relative to the winding part 25, and the fixing hole 77 is formed as an elongated hole 93 that is long in the axial direction of the winding part 25. In this structure of the opening / closing body device, the new winding part 25 can use the elongated hole 93 provided in the insertion part 73 to match the through hole 75 provided in the existing bearing 33 with any position in the longitudinal direction of the fixing hole 77 that has become the elongated hole 93. In addition, the insertion part 73 is slidable relative to the winding part 25. In other words, the position of the elongated hole 93 can be further adjusted by sliding the insertion part 73. This allows the new winding part 25 to be compatible with a wider variety of bearings 33.

[0018] The structure of an opening / closing body device according to claim 7 of the present invention is the structure of the opening / closing body device according to claim 1, The longitudinal direction of the elongated hole 93 which is the fixing hole 77 is inclined with respect to the axial direction of the winding portion 25.

[0019] In the structure of this opening / closing body device, the connection member 65 is slidable relative to the winding part 25, and the longitudinal direction of the long hole 93, which is the fixing hole 77, is inclined relative to the axial direction of the winding part 25. In the structure of this opening / closing body device, the new winding part 25 utilizes the inclined long hole 93 provided in the insertion part 73, so that when the inclined long hole 93 is fastened together with the bolt 89 penetrating the side plate 67 of the bearing 33, the oblique fixing hole 77 does not shift relative to the through hole 75. This makes it possible to restrict the misalignment of the insertion part 73 relative to the bearing 33, such as in the direction in which the insertion part 73 comes out. In addition, since the insertion part 73 is slidable relative to the winding part 25, the inclined long hole 93 moves parallel to the through hole 75 of the bearing 33. In other words, by sliding the insertion part 73, the inclined long hole 93 allows adjustment in both the axial direction of the winding part 25 and the height direction perpendicular to the bottom plate 69. This allows the new winding section 25 to be compatible with a wider variety of bearings 33. Effect of the Invention

[0020] According to the structure of the opening / closing body device described in claim 1 of the present invention, even if the existing bearing is made by the same company or another company, on-site drilling is not required and a new winding section can be easily connected to the existing bearing, thereby improving versatility, shortening installation time, and improving installation ease.

[0021] According to the structure of the opening / closing body device described in claim 2 of the present invention, the fixing holes of the insertion portion of the connecting member are provided in a plurality of locations spaced apart in the axial direction of the winding portion, and any one of these plurality of fixing holes communicates with the through hole of the bearing, so that the fixing hole can be aligned with the through hole of the bearing. This eliminates the need for on-site drilling of holes in existing bearings or new winding portions, and allows the new winding portions to be widely used for bearings made by the same company or other companies, thereby improving versatility, shortening installation time, and improving installation ease.

[0022] According to the structure of the opening / closing body device described in claim 3 of the present invention, the fixing hole of the insertion part of the connecting member is formed as a long hole that is long in the axial direction of the winding part, and the fixing hole communicates with the through hole of the bearing, so that fine adjustments are possible and the fixing hole can be aligned with the through hole of the bearing. This eliminates the need for on-site drilling for existing bearings or new winding parts, and allows new winding parts to be widely used for bearings made by the same company or other companies, thereby improving versatility, shortening installation time, and improving installation ease.

[0023] According to the structure of the opening / closing body device of claim 4 of the present invention, the longitudinal direction of the long hole, which is the fixing hole formed in the insertion part of the connecting member, is inclined with respect to the axial direction of the winding part, so that even if the through hole of the bearing is at a different position in the height direction, the fixing hole can be aligned with the through hole of the bearing, and on-site drilling is not required for the existing bearing or the new winding part, and the new winding part can be widely used for bearings made by the same company or other companies, thereby improving versatility, shortening the installation time, and improving installation. Also, because the fixing hole is inclined, the winding part does not move in the direction of coming out of the bearing, and it is possible to prevent lateral displacement, i.e., axial displacement.

[0024] According to the structure of the opening / closing body device described in claim 5 of the present invention, the connecting member is able to slide freely relative to the winding portion, and one of the multiple fixing holes communicates with the through hole of the bearing, eliminating the need for drilling holes on-site. This makes it possible to more widely use the new winding portion for bearings made by the same company or other companies, thereby improving versatility, shortening installation time, and improving installation ease.

[0025] According to the structure of the opening / closing body device described in claim 6 of the present invention, the connecting member is able to slide freely relative to the winding part, and the fixing hole is formed as a long hole that is long in the axial direction of the winding part, so that drilling work on site is not required and the new winding part can be used more widely for bearings made by the same company or other companies, thereby improving versatility, shortening installation time, and improving installation ease.

[0026] According to the structure of the opening / closing body device described in claim 7 of the present invention, the connecting member is freely slidable relative to the winding part, and the longitudinal direction of the long hole which is the fixing hole is inclined relative to the axial direction of the winding part, so that drilling processing on-site is not required and the new winding part can be used more widely for bearings made by the same company or other companies, thereby improving versatility, shortening installation time, and improving installation ease. [Brief description of the drawings]

[0027] [Figure 1] 1 is a perspective view showing an entire window shutter device to which the opening / closing body device structure according to an embodiment is applied. [Diagram 2] 11 is a front view of the winding section stored in the storage section. FIG. [Diagram 3] FIG. 2 is an exploded perspective view of a bearing and a connecting member. [Figure 4] 13A and 13B are side views of essential parts near the bearings, showing examples of a connecting member that can be attached to different bearings. [Diagram 5] 11 is a side view of a main portion near a bearing, illustrating the structure of an opening / closing body device according to Modification 1 in which a fixing hole is an elongated hole. FIG. [Figure 6]11 is a side view of a main portion near a bearing, illustrating the structure of an opening / closing body device according to Modification 1 in which an insertion portion is fixed to a bearing. FIG. [Figure 7] 13 is a side view of a main portion near a bearing, illustrating the structure of an opening / closing body device according to Modification 2, in which the longitudinal direction of a fixing hole formed by an elongated hole is inclined with respect to the axial direction of the winding portion. FIG. [Figure 8] 13 is a side view of a main portion near a bearing, illustrating the structure of an opening / closing body device according to Modification 2 in which an insertion portion is fixed to a bearing. FIG. [Figure 9] 13 is a side view of a main part near a bearing of an opening / closing body device structure according to Modification 2 used when the center position of the through hole and the center position of the winding part do not coincide with each other. FIG. [Figure 10] 13 is a side view of a main part near a bearing, illustrating the structure of an opening / closing body device according to Modification 2 in which an insertion portion is fixed to a bearing whose through hole is misaligned in the height direction. FIG. [Figure 11] 13 is a side view of a main portion near a bearing, illustrating the structure of an opening / closing body device according to Modification 3, in which an X-shaped fixing hole formed by intersecting two long holes is provided in an insertion portion. FIG. [Figure 12] 13 is a side view of a main part near a bearing, illustrating the structure of an opening / closing body device according to Modification 3 in which an insertion portion is fixed to a bearing whose through hole is misaligned in the height direction. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0028] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an entire window shutter device 11 to which the opening / closing body device structure according to the embodiment is applied. The structure of the opening / closing body device according to this embodiment is applied to a window shutter device 11 as an example. FIG. 1 shows the window shutter device 11 after the structure of the opening / closing body device has been applied. The shutter device 11 is installed on an exterior wall 17 of a building that is outside a window sash 15 to which a paper screen 13 is attached, and opens and closes a window opening 21 outside the window sash by moving up and down while being guided by a pair of left and right guide rails 19. A storage section 23 is disposed above this opening 21. A winding section 25 (see FIG. 2) is stored horizontally in the storage section 23. The upper end of a shutter curtain 27, which is an opening / closing body, is connected to the winding section 25. The shutter curtain 27 is configured by a plurality of horizontally long slats 29 that are long in the width direction of the opening 21, which are connected in the vertical direction and can be rolled up like a blind.

[0029] FIG. 2 is a front view of the winding section 25 stored in the storage section 23. FIG. There are cases where an existing manual shutter device is modified to an electric shutter device 11 equipped with an electric motor. In this case, the winding part of the manual shutter device, which was originally opened and closed manually, is replaced with what is called a "retrofit motorization kit" to make it electric. In addition to replacing the manual shutter device 11 with an electric shutter device, there are also cases where a new winding part 25 is attached to the bearing 33 already fixed to the main body 31. The structure of the opening and closing body device of this embodiment is widely adopted when attaching such a new winding part 25.

[0030] FIG. 2 shows the winding section 25 after being modified to be electrically operated. In this case, the bearing 33 is left as it is, and a component equipped with a motor for electric operation is attached to the bearing 33. That is, brackets 35 facing each other across the opening 21 are fixed to the building frame 31, and the bearing 33 is fixed to the bracket 35. The bearing 33 is fixed to the frame 31 via the bracket 35, but may be fixed directly to the frame 31. The bracket 35 and the frame 31 may be configured to have a support plate (not shown) interposed therebetween. The configuration for interposing the support plate may be a configuration in which both the bracket 35 and the support plate are fixed to the frame 31, or a configuration in which the support plate is fixed to the frame 31, the bracket 35 is placed on the support plate and hung thereon, and the bracket 35 is fixed only to the support plate. In FIG. 2, the brackets 35 are shown positioned to face each other between the building structures 31, but the brackets 35 may be positioned so as to protrude from the front of the structure 31, for example, from the front of the structure 31 when viewed from the outdoors.

[0031] For example, the left half of the winding section 25 in FIG. 2 is the electric drive section 37, and the right half is the winding spring section 39. In this specification, the axis refers to the axis of the winding section 25. The axis of the winding section 25 coincides with the center of rotation. The outer periphery of the electric drive section 37 and the winding spring section 39 is covered by a cylindrical winding body section 41 that rotates forward and backward. The winding section 25 has connecting ends 43 that protrude coaxially from both ends in the axial direction. The connecting end 43 protrudes from the left end of the electric drive section 37 in the figure. On the other hand, the connecting end 43 protruding from the right end of the winding spring section 39 in the figure may be a conventional shaft. In this embodiment, the connecting end 43 protruding from the winding spring section 39 is the shaft 45. The connecting end 43 and the shaft 45 do not rotate. The connecting end 43 and the shaft 45 are each fixed to a bearing 33 fixed to the body 31 side.

[0032] The electric drive unit 37 houses an opening / closing machine 47 therein. The opening / closing machine 47 includes an electric motor, a brake for braking the electric motor, and a control device for controlling the driving of the electric motor and the on / off control of the brake. The opening / closing machine 47 is provided with a wheel 49 that rotates when driven by the electric motor. The outer periphery of the wheel 49 engages with the inner periphery of the winding drum 41 so as not to rotate relative to the inner periphery, and rotates integrally with the winding drum 41. Therefore, when the wheel 49 rotates when driven by the electric motor, the winding drum 41 rotates. In addition, a ring-shaped driven member 51 that rotates integrally with the winding drum 41 is fitted to the outer periphery of the opening / closing machine 47. The rotational driving force of the electric motor is transmitted to the winding drum 41 by the wheel 49 and the driven member 51.

[0033] The electric drive unit 37 is a so-called tubular motor, and the above-mentioned driven member 51, which has the same outer diameter as the wheel 49 and supports the inner circumference of the winding drum 41 on the outer circumference of the casing 53 so that it can rotate freely, is provided on the outer periphery of the cylindrical casing 53.

[0034] Meanwhile, a return spring unit 55 is inserted into the winding spring section 39. This return spring unit 55 is configured to include the above-mentioned non-rotating shaft 45, a plurality of wheels 57 arranged rotatably about the shaft 45, and a return spring 59 made of a torsion coil spring arranged between these wheels 49. Each wheel 57 is connected to the winding drum section 41 by a fastening member or the like, and one end of the return spring 59 is connected to the shaft 45 by a connecting member 61, and the other end is connected to the wheel 57 by the connecting member 61. The outer periphery of each of the plurality of wheels 57 is connected by a connecting rod 63. The connecting rod 63 is engaged with the inner periphery of the winding drum section 41 so as not to rotate relative to the inner periphery.

[0035] For this reason, in the shutter device 11, when the shutter curtain 27 is unwound from the winding section 25, a return spring force is stored in the return spring 59. This return spring force is used as an auxiliary force for lifting the shutter curtain 27 when the electric drive section 37 rotates in the reverse direction by being driven by the electric motor to wind up the shutter curtain 27.

[0036] A connecting end 43, which is an end of the electric drive unit 37, is connected to the bearing 33. In this embodiment, the connecting end 43 on the winding spring unit side is a shaft 45. At least one of the connecting ends 43 of the winding unit 25 has a connecting member 65. In this embodiment, only the connecting end 43 on the electric drive unit side has the connecting member 65. Of course, the structure of the opening / closing body device may be such that the connecting ends 43 on both ends of the winding unit 25 have the connecting members 65.

[0037] FIG. 3 is an exploded perspective view of the bearing 33 and the connecting member 65. As shown in FIG. The bearing 33 is fixed to the body 31 side with the open side of a U-shape formed by connecting the lower ends of a pair of vertical and parallel side plates 67 with a bottom plate 69 facing upward.

[0038] The connecting member 65 has a base 71 attached to the coupling end 43, and an insertion portion 73 that protrudes from the base 71 toward the bearing 33 and is supported by the bottom plate 69 of the bearing 33. The insertion portion 73 has a fixing hole 77 that communicates with a through hole 75 formed in the side plate 67 of the bearing 33. The base 71 can be formed with L-shaped fixing pieces 79 that sandwich the winding portion 25 from both sides in the diameter direction around the outer periphery of the winding portion 25. The fixing pieces 79 of this base 71 are fixed to different positions in the circumferential direction of the winding portion 25.

[0039] In this embodiment, the portion of the winding unit 25 to which the base 71 is fixed corresponds to the casing 53 of the tubular motor, which protrudes coaxially from the winding drum 41 toward the bearing 33. In other words, the coupling end 43 corresponds to the extending end of the casing 53. The connecting member 65 is fixed to the outer periphery of the coupling end 43 by inserting a fastener such as a screw into an attachment hole 81 drilled in the base 71 and screwing it into a female thread at a predetermined position drilled in the outer periphery of the casing 53.

[0040] The connecting member 65 has an insertion portion 73 that is U-shaped in plan view and is connected to linking pieces 83 that extend from a pair of base portions 71 in directions approaching each other. The insertion portion 73 has a pair of perpendicular and parallel side pieces 85, one ends of which are connected to a tip piece 87, forming a U-shape. The connecting member 65 is a metal fitting in which the base portions 71, linking pieces 83, side pieces 85, and tip piece 87 are integrally made from sheet metal material.

[0041] The connecting member 65 has a fixing hole 77 drilled in each of a pair of side pieces 85. The fixing hole 77 is provided at a position where a fastener such as a bolt 89 and a nut 91 can pass through the through hole 75 of the bearing 33 when the insertion part 73 is placed on the bottom plate 69 of the bearing 33. In this embodiment, a plurality of fixing holes 77, for example, two as shown in the figure, are provided in the direction along the axis of the winding part 25. The number of fixing holes 77 is not limited to two. Any one of the plurality of fixing holes 77 communicates with the through hole 75 of the bearing 33. In this case, the fixing hole 77 can be a perfect circle shape or an elongated hole shape for absorbing construction errors as shown in FIG. 3. The construction error absorbing portion can be, for example, a long diameter in the longitudinal direction that is twice or less than a short diameter.

[0042] FIG. 4(a) and (b) are side views of the main part near the bearing, showing an example of a connecting member 65 to be attached to a different bearing 33. In the existing bearing 33, the side plate 67 and the bottom plate 69 that hold the insertion portion 73 may have different protruding lengths from the bracket 35. For example, in the case of the bearing 33 with a small protruding length shown in Fig. 4(a), the insertion portion 73 and the bearing 33 can be connected and fixed by using the fixing hole 77 on the tip side of the insertion portion 73 out of the two fixing holes 77. Also, in the case of the bearing 33 with a large protruding length shown in Fig. 4(b), the insertion portion 73 and the bearing 33 can be connected and fixed by using the fixing hole 77 on the side closer to the base 71 out of the two fixing holes 77.

[0043] The procedure for fixing the winding part 25 to the bearing 33 is as follows: first, the shaft 45 of the winding spring part 39 is placed on the bearing 33. Next, the other end, that is, the insertion part 73 of the electric drive part 37, is placed on the bearing 33. Next, the hole of the shaft 45 and the through hole 75 of the bearing 33 are aligned and fastened together using a bolt 89 to connect and fix. Next, the fixing hole 77 that is aligned with the through hole 75 among the multiple fixing holes 77 in the insertion part 73 is brought into communication with the through hole 75 of the bearing 33, and the bolt 89 is passed through to fasten together and connect and fix. In this embodiment, the fastening together is completed by inserting and placing a pair of parallel side pieces 85 of the insertion part 73 between a pair of parallel side plates 67 connected by a bottom plate 69 of the bearing 33, and then passing the bolt 89 through the two side plates 67 and the two side pieces 85. When the connecting member 65 is manufactured in a factory or the like, the fixing holes 77 are drilled in a pair of parallel side pieces 85 of the insertion portion 73, so that the holes are drilled into a flat plate surface, which makes the manufacturing process easy.

[0044] Next, a modification of the above configuration will be described.

[0045] [Variation 1] FIG. 5 is a side view of a main part near a bearing, illustrating the structure of an opening / closing body device according to a first modified example in which the fixing hole 77 is an elongated hole 93. As shown in FIG. In the structure of the opening / closing body device according to the first modification, the fixing hole 77 is formed as an elongated hole 93 that is long in the axial direction of the winding portion 25. That is, the elongated hole 93 has a long diameter in the direction along the axis of the winding portion 25. The fixing hole 77, which is an elongated hole 93, is formed so that the long diameter of the elongated hole 93 is twice or more than twice the short diameter.

[0046] FIG. 6 is a side view of a main part near the bearing, illustrating the structure of an opening / closing body device according to Modification 1 in which an insertion portion 73 is fixed to a bearing 33. As shown in FIG. The fixing hole 77, which is now an elongated hole 93, communicates at any position in the longitudinal direction with the through hole 75 of the bearing 33. In the structure of the opening-closing body device according to the first modification, the through hole 75 of the bearing 33 matches at any position of the elongated hole 93, and the bolt 89 can be passed through to fasten and tighten together.

[0047] [Variation 2] FIG. 7 is a side view of a main part near a bearing, illustrating the structure of an opening / closing body device according to Modification 2, in which the longitudinal direction of a fixing hole 77 formed by an elongated hole 93 is inclined with respect to the axial direction of the winding portion 25. In the structure of the opening / closing body device according to the second modification, the fixing hole 77 is formed by an elongated hole 93, and in a side view, the longitudinal direction of the elongated hole 93 is inclined with respect to the axial direction of the winding portion 25. In other words, the long axis direction of the long diameter of the elongated hole 93 is not parallel to the axial direction of the winding portion 25, but is inclined.

[0048] FIG. 8 is a side view of a main part near the bearing, illustrating the structure of an opening / closing body device according to Modification 2 in which an insertion portion 73 is fixed to the bearing 33. In the structure of the opening / closing body device according to the second modification, the oblique side of the fixing hole 77 comes into contact with the bolt 89, restricting movement along the axis of the winding part 25 and preventing the insertion part 73 from shifting out of place. In other words, movement in the direction in which the winding part 25 falls out of the bearing 33 can be restricted. The oblique direction of the fixing hole 77 is preferably such that it slopes upward toward the tip of the insertion part 73. By configuring it in this direction, when a force is applied to the insertion part 73 in the direction in which it falls out of the bearing 33, a stress is generated in the insertion part 73 in a direction that presses it against the bottom plate 69 of the bearing 33, and the insertion part 73 is further prevented from falling out of the bearing 33.

[0049] FIG. 9 is a side view of a main part near a bearing of an opening / closing body device structure according to a second modified example used when the center position of the through hole 75 and the center position of the winding portion 25 do not coincide with each other. In the bearing 33, the center position of the through hole 75 may not coincide with the center position of the winding part 25. For example, in a side view, an error δ may occur between the height of the through hole 75 from the bottom plate 69 of the bearing 33 and the height from the bottom plate 69 to the axis of the winding part 25.

[0050] FIG. 10 is a side view of a main part near a bearing, illustrating the structure of an opening / closing body device according to Modification 2 in which an insertion portion 73 is fixed to a bearing 33 whose through hole 75 is misaligned in the height direction. According to the structure of the opening / closing body device of the modified example 2, even if the through hole 75 of the bearing 33 is higher than the height of the axis of the winding part 25 by an error δ, the fixing hole 77 is an oblique long hole 93, so that the fixing hole 77 coincides with a predetermined inclination position and can be accommodated. Thus, the structure of the opening / closing body device of the modified example 2 can prevent the occurrence of a problem that the device cannot be attached even if the distance from the bottom of the through hole 75 of the bearing 33 is not the same as the distance from the axis of the winding part 25 to the bottom surface. Note that drilling the fixing holes 77 in the pair of side pieces 85 of the insertion part 73 during manufacturing in a factory or the like is easier to process than drilling oblique long holes 93 in the curved surface of a pipe (shaft) as in the configuration of a manual shutter device.

[0051] [Variation 3] FIG. 11 is a side view of a main part near a bearing, illustrating the structure of an opening / closing body device according to Modification 3, in which an X-shaped fixing hole 77 formed by intersecting two elongated holes 93 is provided in an insertion portion 73. In FIG. In the structure of the opening / closing body device according to the third modification, the insertion portion 73 is provided with an X-shaped fixing hole 77 in which two elongated holes 93 with their inclination directions opposite to each other intersect.

[0052] FIG. 12 is a side view of a main part near a bearing, illustrating the structure of an opening / closing body device according to Modification 3, in which an insertion portion 73 is fixed to a bearing 33 whose through hole 75 is misaligned in the height direction. In the structure of the opening / closing body device according to the third modification, the fixing hole 77 is X-shaped, and therefore, compared to a single inclined long hole 93, it is possible to accommodate the through hole 75 that is offset in the height direction with a small displacement (amount of movement) in the axial direction of the insertion portion 73. For example, the fixing hole 77 that is inclined only downward to the right in the figure can accommodate only the through hole 75 that is offset upward, but the X-shaped fixing hole 77 can accommodate two through holes 75 that are offset upward and downward with the same axial displacement of the insertion portion 73. In other words, the X-shaped fixing hole 77 according to the third modification overlaps the bottom plate 69 of the bearing 33 over a wide area, and therefore it is possible to accommodate the through holes 75 that are offset over a wider range. In other words, versatility can be further improved.

[0053] Note that the X-shaped fixing hole 77 may have a central portion where two inversely inclined fixing holes 77 intersect as an elongated hole 93 (straight portion) that is long in the direction along the axis of the winding portion 25. That is, the left end of the X-shaped fixing hole 77 may be > shaped, the central portion may be - shaped, and the right end may be < shaped.

[0054] [Variation 4] In the structure of the opening / closing body device according to the fourth modification, the base 71 of the connection member 65 is attached to the connecting end 43 so as to be non-rotatable relative to the connecting end 43 and slidable in the axial direction of the winding part 25. In this embodiment, the connecting end 43 is an end of the casing 53. The sliding structure of the base 71 is not particularly limited, but as an example, the mounting hole 81 drilled in the base 71 can be an elongated hole 95 (see the broken line in FIG. 3) that is long in the axial direction of the winding part 25. In the connection member 65, the mounting hole 81 that fixes the base 71 to the connecting end 43 is the elongated hole 95, so that the insertion part 73 can slide freely in the axial direction of the winding part 25. As a result, the connection member 65 can have an adjustment function in which the protruding length of the insertion part 73 can be changed in the axial direction relative to the connecting end 43.

[0055] The adjustment function of the fourth modification can be provided in a manner overlapping with each of the configurations of the first to third modifications described above.

[0056] That is, the opening / closing body device can be configured such that the connection member 65 is slidable relative to the winding section 25, and one of the fixing holes 77 communicates with the through hole 75 of the bearing 33. The opening / closing body device can be configured such that the connection member 65 is slidable relative to the winding section 25, and any one of the multiple fixing holes 77 communicates with the through hole 75 of the bearing 33. The opening / closing body device can be configured such that the connection member 65 is slidable relative to the winding section 25, and the fixing hole 77 is formed as an elongated hole 93 that is long in the axial direction of the winding section 25. The opening / closing body device can be configured such that the connection member 65 is slidable relative to the winding section 25, and the longitudinal direction of the elongated hole 93 that is the fixing hole 77 is inclined relative to the axial direction of the winding section 25. Furthermore, the opening / closing body device can be structured so that the connecting member 65 is slidable relative to the winding portion 25 and the X-shaped fixing hole 77 communicates with the through hole 75 of the bearing 33 .

[0057] Next, the operation of the above-mentioned configuration will be described.

[0058] In the structure of the opening / closing body device according to this embodiment, a new winding unit 25 can be easily attached to the existing bearing 33. In an opening / closing body device (shutter device 11), a device that was originally opened and closed manually is modified to be electrically operated by replacing it with a winding unit 25 called a "retrofit motorization kit." In this case, the bearing 33 is left as it is, and a winding unit 25 equipped with a motor that is electrically operated is attached to the bearing 33.

[0059] The new winding unit 25 has an end that is a non-rotating connecting end 43 that is different from the rotating winding body 41. At least one of the connecting ends 43 at both ends has a connecting member 65. When one connecting end 43 of the winding unit 25 has the connecting member 65, the other connecting end 43 becomes the same shaft 45 as in the manual operation. In other words, the shaft 45 can be attached to the existing bearing 33 in the same manner as before.

[0060] On the other hand, the connecting member 65 has a base 71 attached to the connecting end 43, and an insertion portion 73 that protrudes from the base 71 toward the bearing 33 and is supported by the bottom plate 69 of the bearing 33. After the shaft 45 at the other connecting end 43 of the new winding unit 25 is placed on the bottom plate 69 of the bearing 33 and attached, the insertion portion 73 of the connecting member 65 at one connecting end 43 is placed on the bottom plate 69 of the bearing 33, and both ends are placed on the bearing 33 and fixed.

[0061] The shaft 45 provided at the other connecting end 43 has a fixing hole 77 passing through in the diameter direction (horizontal direction). The fixing hole 77 of the shaft 45 coincides with through holes 75 formed in a pair of bottom plates 69 of the bearing 33. The shaft 45 is fastened to the bearing 33 with a through bolt that is passed through the through hole 75 of the bearing 33 and inserted into the corresponding fixing hole 77.

[0062] When the insertion portion 73 of the connecting member 65 connected to one of the connecting ends 43 is placed on the bottom plate 69 of the bearing 33, the fixing hole 77 may not match the through hole 75 provided in the side plate 67 of the bearing 33. This mismatch between the fixing hole 77 and the through hole 75 occurs due to construction errors, etc., even in the case of in-house manufacturing, but is particularly noticeable in the case of bearings 33 made by other companies, which may differ from the design stage.

[0063] Therefore, in the structure of the opening / closing body device, base 71 of connecting member 65 is attached so as to be unrotatable relative to linking end 43 and to be slidable in the axial direction of winding part 25 (configuration of modified example 4). In other words, in the new winding part 25, base 71 of connecting member 65 is slidable relative to linking end 43, so that the distance between fixing hole 77 of shaft 45 at the other end and fixing hole 77 of insertion part 73 at one end can be changed.

[0064] In other words, since the insertion part 73 is expandable and contractible in the axial direction of the winding part 25, it is possible to adjust it with respect to the through hole 75 of the bearing 33, and it is possible to align the fixing hole 77 of the insertion part 73 with the through hole 75 of the bearing 33. This makes drilling on-site unnecessary, and the fixing hole 77 of the insertion part 73 can be aligned with the through hole 75 of the bearing 33 by a simple adjustment of simply sliding the insertion part 73, making it possible to complete the connection work easily and in a short time.

[0065] In addition, in the structure of this opening / closing body device, when the opening / closing body device is modified to an electric one, one of the coupling ends 43 of the new winding section 25 has a connection member 65. The other coupling end 43 may be provided with the previous shaft 45. The connection member 65 has a base 71 attached to the coupling end 43 and an insertion part 73 that protrudes from the base 71 toward the bearing 33 and is supported by the bottom plate 69 of the bearing 33.

[0066] When the insertion portion 73 is placed on the bottom plate 69 of the bearing 33 , the fixing hole 77 may not coincide with the through hole 75 provided in the side plate 67 of the bearing 33 .

[0067] Therefore, in the structure of the opening / closing body device, a plurality of fixing holes 77 are provided in the direction along the axis of the winding portion 25 (the configuration of the embodiment shown in Figs. 2 to 4). In other words, the new winding portion 25 can use any one of the plurality of fixing holes 77 provided in the insertion portion 73 to match the through hole 75 provided in the existing bearing 33 with the fixing hole 77. Note that the "plurality" may be two or more. For example, if the fixing hole 77 made by the company is in the same position and the fixing hole 77 made by another company is in the same position different from the fixing hole 77 made by the company, the number of variations in the fixing hole position is two. In this case, it is sufficient that two fixing holes, the fixing hole 77 made by the company and the fixing hole 77 made by another company, are provided in the insertion portion 73. The fixing holes 77 can be provided in this way according to the variations.

[0068] This eliminates the need for drilling holes on-site, and allows the fixing holes 77 to be easily aligned with the through holes 75 of the bearings 33, making it possible to complete the connection work in a short time with easy work. Furthermore, with this structure of the opening / closing body device, the adjustment function is achieved simply by drilling a plurality of fixing holes 77 in the insertion portion 73 of the connecting member 65, so there is no need to create a complex structure for adjustment, and the structure of the opening / closing body device can be simplified, making it possible to increase versatility and ease of work at low cost. As a result, the fixing holes 77 of the insertion portion 73 of the connecting member 65 are provided in a plurality of locations spaced apart in the axial direction of the winding portion 25, and any one of these plurality of fixing holes 77 communicates with the through hole 75 of the bearing 33, so that the fixing hole 77 can be aligned with the through hole 75 of the bearing 33. This eliminates the need for on-site drilling of holes in the existing bearing 33 or in the new winding portion 25, and allows the new winding portion 25 to be widely used for bearings 33 made by the same company or by other companies, thereby improving versatility, shortening construction time, and improving construction ease.

[0069] In addition, in the structure of this opening / closing body device, when the opening / closing body device is modified to an electric one, one of the coupling ends 43 of the new winding section 25 has a connection member 65. The other coupling end 43 may be provided with the previous shaft 45. The connection member 65 has a base 71 attached to the coupling end 43 and an insertion part 73 that protrudes from the base 71 toward the bearing 33 and is supported by the bottom plate 69 of the bearing 33.

[0070] When the insertion portion 73 is placed on the bottom plate 69 of the bearing 33 , the fixing hole 77 may not coincide with the through hole 75 provided in the side plate 67 of the bearing 33 .

[0071] Therefore, in the structure of the opening / closing body device, the fixing hole 77 is formed as an elongated hole 93 that is long in the axial direction of the winding part 25 (the configuration of Modification 1 shown in Figs. 5 and 6). In other words, by utilizing the elongated hole 93 provided in the insertion part 73, the new winding part 25 can align the through hole 75 provided in the existing bearing 33 with any position in the longitudinal direction of the fixing hole 77 that has become the elongated hole 93.

[0072] This eliminates the need for drilling holes on-site, allows the fixing holes 77 to be easily aligned with the through holes 75 of the bearings 33, and enables the connection work to be completed in a short time with easy work. Furthermore, with this structure of the opening / closing body device, the adjustment function is achieved simply by drilling the elongated holes 93 in the insertion portion 73 of the connecting member 65, so there is no need to create a complex structure for adjustment, and the structure of the opening / closing body device can be simplified, making it possible to increase versatility and ease of work at low cost. As a result, the fixing hole 77 of the insertion portion 73 in the connecting member 65 is formed as a long hole 93 that is long in the axial direction of the winding portion 25, and the fixing hole 77 communicates with the through hole 75 of the bearing 33, making fine adjustments possible so that the fixing hole 77 can be aligned with the through hole 75 of the bearing 33. This eliminates the need for on-site drilling for the existing bearing 33 or the new winding portion 25, and allows the new winding portion 25 to be widely used for bearings 33 made by the same company or by other companies, thereby improving versatility, shortening construction time, and improving construction ease.

[0073] In addition, in the structure of this opening / closing body device, the longitudinal direction of the fixing hole 77 formed by the elongated hole 93 is inclined with respect to the axial direction of the winding part 25 (the configuration of modified example 2 shown in Figs. 7 to 10). In other words, by utilizing the inclined elongated hole 93 provided in the insertion part 73, the new winding part 25 is able to align the through hole 75 provided in the existing bearing 33 with any position in the longitudinal direction of the fixing hole 77 that has become the inclined elongated hole 93.

[0074] As a result, even if the through hole 75 of the bearing 33 is provided at a different height from the bottom plate 69, the fixing hole 77 can be easily aligned with the through hole 75 of the bearing 33. When the inclined fixing hole 77 is fastened together with the bolt 89 passing through the insertion portion 73 and the side plate 67 of the bearing 33, the inclined fixing hole 77 does not become misaligned with the through hole 75.

[0075] That is, it is possible to restrict the misalignment of the insertion part 73 from the bearing 33, such as the direction in which the insertion part 73 falls out. As a result, since the longitudinal direction of the fixing hole 77 formed by the elongated hole 93 in the insertion part 73 of the connecting member 65 is inclined with respect to the axial direction of the winding part 25, even if the through hole 75 of the bearing 33 is at a different position in the height direction, the fixing hole 77 can be aligned with the through hole 75 of the bearing 33, and therefore, drilling is not required on-site for the existing bearing 33 or the new winding part 25, and the new winding part 25 can be widely used for bearings 33 made by the same company or other companies, thereby improving versatility, shortening the construction time, and improving construction. In addition, since the fixing hole 77 is inclined, the winding part 25 does not move in the direction in which it falls out from the bearing 33, and it is possible to prevent lateral misalignment, i.e., misalignment in the axial direction.

[0076] In addition, in the structure of this opening / closing body device, the connection member 65 is slidable relative to the winding section 25, and any one of the multiple fixing holes 77 communicates with the through hole 75 of the bearing 33 (the structure of the fourth modified example and the structure of the embodiment). In this structure of the opening / closing body device, the new winding section 25 can use any one of the multiple fixing holes 77 provided in the insertion section 73 to match the through hole 75 and the fixing hole 77 provided in the existing bearing 33. In addition, the insertion section 73 is slidable relative to the winding section 25. In other words, the positions of the multiple fixing holes 77 can be further adjusted by sliding the insertion section 73. This allows the new winding section 25 to be compatible with a wider variety of bearings 33. As a result, the connecting member 65 can slide freely relative to the winding portion 25, and one of the multiple fixing holes 77 communicates with the through hole 75 of the bearing 33, eliminating the need for drilling holes on-site. This means that the new winding portion 25 can be used more widely for bearings 33 made by our company or other companies, thereby improving versatility, shortening construction time, and improving construction ease.

[0077] In addition, in the structure of this opening / closing body device, the connection member 65 is slidable relative to the winding part 25, and the fixing hole 77 is formed as an elongated hole 93 that is long in the axial direction of the winding part 25 (the structure of the fourth modification and the structure of the first modification). In the structure of this opening / closing body device, the new winding part 25 can use the elongated hole 93 provided in the insertion part 73 to match the through hole 75 provided in the existing bearing 33 with any position in the longitudinal direction of the fixing hole 77 that has become the elongated hole 93. In addition, the insertion part 73 is slidable relative to the winding part 25. In other words, the position of the elongated hole 93 can be further adjusted by sliding the insertion part 73. This allows the new winding part 25 to be compatible with a wider variety of bearings 33. As a result, the connecting member 65 can slide freely relative to the winding portion 25, and the fixing hole 77 is formed as an oblong hole 93 that is long in the axial direction of the winding portion 25, so that no drilling is required on-site and the new winding portion 25 can be used more widely for bearings 33 made by our company or other companies, thereby improving versatility, shortening construction time, and improving construction ease.

[0078] In addition, in the structure of this opening / closing body device, the connection member 65 is slidable relative to the winding part 25, and the longitudinal direction of the fixing hole 77 is inclined relative to the axial direction of the winding part 25 (the configuration of the modified example 4 and the configuration of the modified example 2). In the structure of this opening / closing body device, the new winding part 25 utilizes the inclined long hole 93 provided in the insertion part 73, so that when the inclined long hole 93 is fastened together with the bolt 89 penetrating the side plate 67 of the bearing 33 by the bolt 89 penetrating the side plate 67 of the bearing 33, the oblique fixing hole 77 does not shift relative to the through hole 75. This makes it possible to restrict the shift of the insertion part 73 relative to the bearing 33, such as the direction in which the insertion part 73 comes out. In addition, since the insertion part 73 is slidable relative to the winding part 25, the inclined long hole 93 moves parallel to the through hole 75 of the bearing 33. That is, by sliding the insertion portion 73, the inclined long hole 93 allows adjustment in both the axial direction of the winding portion 25 and the height direction perpendicular to the bottom plate 69. This allows the new winding portion 25 to be more widely compatible with various bearings 33. As a result, since the connection member 65 is slidable relative to the winding portion 25 and the longitudinal direction of the fixing hole 77 is inclined relative to the axial direction of the winding portion 25, drilling is not required on-site and the new winding portion 25 can be used more widely with bearings 33 made by the company or other companies, thereby improving versatility, shortening installation time, and improving installation ease.

[0079] Therefore, according to the structure of the opening / closing body device of this embodiment, even if the existing bearing 33 is made by the same company or another company, the new winding section 25 can be easily attached and connected to the existing bearing 33 without the need for on-site drilling, thereby improving versatility, shortening construction time, and improving construction ease. [Explanation of symbols]

[0080] 11...Opening and closing device (shutter device) 21...Opening 25…Winding section 27...Opening and closing body (shutter curtain) 31...Structure 33...Bearing 35…Bracket 43...Connection end 65...Connecting member 67…Side panel 69…Bottom plate 71...Base 73…insertion part 75…Through hole 77…Fixing hole 93…Slotted hole

Claims

1. A structure of an opening / closing body device in which bearings are fixed to brackets that are fixed to a building frame and face each other across an opening in the building, and each of the bearings is connected to a connecting end that is an end of a winding part around which an opening / closing body that opens and closes the opening is wound, The bearing is fixed to the bracket with the open side of a U-shape, in which the lower ends of a pair of parallel side plates are connected to a bottom plate, facing upward, At least one of the coupling ends has a connecting member, The connecting member is A base portion attached to the connecting end portion; an insertion portion that protrudes from the base toward the bearing, is supported by the bottom plate of the bearing, and has a fixing hole that communicates with a through hole formed in the side plate; A structure of an opening / closing body device, characterized in that the base portion is attached so as to be unable to rotate relatively to the connecting end portion and so as to be slidable in the axial direction of the winding portion.

2. A structure of an opening / closing body device in which bearings are fixed to brackets that are fixed to a building frame and face each other across an opening in the building, and each of the bearings is connected to a connecting end that is an end of a winding part around which an opening / closing body that opens and closes the opening is wound, The bearing is fixed to the bracket with the open side of a U-shape, in which the lower ends of a pair of parallel side plates are connected to a bottom plate, facing upward, At least one of the coupling ends has a connecting member, The connecting member is A base portion attached to the connecting end portion; an insertion portion that protrudes from the base toward the bearing, is supported by the bottom plate of the bearing, and has a fixing hole that communicates with a through hole formed in the side plate; A structure of an opening / closing body device, characterized in that a plurality of the fixing holes are provided in a direction along the axis of the winding portion, and any one of the plurality of fixing holes is connected to a through hole of the bearing.

3. A structure of an opening / closing body device in which bearings are fixed to brackets that are fixed to a building frame and face each other across an opening in the building, and each of the bearings is connected to a connecting end that is an end of a winding part around which an opening / closing body that opens and closes the opening is wound, The bearing is fixed to the bracket with the open side of a U-shape, in which the lower ends of a pair of parallel side plates are connected to a bottom plate, facing upward, At least one of the coupling ends has a connecting member, The connecting member is A base portion attached to the connecting end portion; an insertion portion that protrudes from the base toward the bearing, is supported by the bottom plate of the bearing, and has a fixing hole that communicates with a through hole formed in the side plate; A structure of an opening / closing body device, characterized in that the fixing hole is formed as a long hole that is long in the axial direction of the winding portion, and the fixing hole communicates with a through hole of the bearing.

4. 4. The opening / closing body device structure according to claim 3, wherein the longitudinal direction of the elongated hole which is the fixing hole is inclined with respect to the axial direction of the winding portion.

5. The opening / closing body device structure according to claim 1, characterized in that a plurality of the fixing holes are provided spaced apart in the axial direction of the winding portion, and any one of the plurality of fixing holes is connected to the through hole of the bearing.

6. 2. The opening / closing body device structure according to claim 1, wherein the fixing hole is formed as an oblong hole that is long in the axial direction of the winding portion, and the fixing hole communicates with a through hole of the bearing.

7. 2. The opening / closing body device structure according to claim 1, wherein the longitudinal direction of the fixing hole is inclined with respect to the axial direction of the winding portion.

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