JP2025029478A - Structure of the opening and closing device - Google Patents

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

The present invention relates to the structure of an opening and closing device.

Conventionally, a winding device for an architectural opening and closing device is known that allows an electric shutter device with an electric motor to be installed where a manual shutter device is already installed (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 the building structure, around which the opening and closing body is wound, is formed with a fixed shaft support part that engages and fixes the fixed shaft of a manual winding device that has a drum and a fixed shaft that rotatably supports the drum, and an adapter member with a shaft part that engages and fixes the fixed shaft support part of the bracket is provided at the end of the electric motor to support the electric winding device with an electric motor built in so as to be rotatable relative to one end of the drum.

JP 2004-257063 A

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

The present invention was made in consideration of the above situation, and its purpose is to provide an opening and closing body device structure that can easily attach a new winding section to an existing bearing, whether the existing bearing is manufactured by the company or another company, without the need for on-site drilling, thereby improving versatility, shortening installation time, and improving installation ease.

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 section 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 portion 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 unable to rotate relative to the connecting end portion 43 and to be slidable in the axial direction of the winding portion 25 .

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 to an electric 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 linking 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 linking 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 linking end 43 is placed on the bottom plate 69 of the bearing 33, and both ends are placed on and fixed to the bearing 33.
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 the through holes 75 formed in the 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 corresponding 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 (total length in the axial direction) of the new winding portion 25. 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, the base 71 of the connecting member 65 is attached so as to be unrotatable relative to the connecting end 43 and to be slidable in the axial direction of the winding part 25. In other words, in the new winding part 25, the base 71 of the connecting member 65 is slidable relative to the connecting end 43, so that the distance between the fixing hole 77 of the shaft 45 at the other end and the fixing hole 77 of the insertion part 73 at one end can be changed.
In other words, since the insertion portion 73 is expandable and contractible in the axial direction of the winding portion 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 portion 73 with the through hole 75 of the bearing 33. This makes it unnecessary to perform drilling on-site, and the fixing hole 77 of the insertion portion 73 can be aligned with the through hole 75 of the bearing 33 by simple adjustment by simply sliding the insertion portion 73, making it possible to complete the connection work easily and in a short time.

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 section 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 portion 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 .

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 connecting member 65. The other coupling end 43 may be provided with the previous shaft 45. The connecting 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 a 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, there are two variations in the fixing hole position. 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 through 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.

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 section 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 portion 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 .

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 connecting member 65. The other coupling end 43 may be provided with the previous shaft 45. The connecting 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 a 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, 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 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.

The structure of the 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 .

In the structure of this opening/closing body device, the longitudinal direction of the fixing hole 77 formed by the long hole 93 is inclined with respect to the axial direction of the winding part 25. In other words, by utilizing the inclined long 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 long 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 elongated hole 93, is fastened together with a bolt 89 passing through the insertion portion 73 and the side plate 67 of the bearing 33, the inclined fixing hole 77 will not be misaligned with the through hole 75. As a result, it is possible to restrict misalignment of the insertion portion 73 with respect to the bearing 33, such as in the direction in which it comes out.

The structure of the 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 spaced apart relation 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 .

In this structure of the opening/closing body device, the connection member 65 is slidable relative to the winding section 25, and 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 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 each 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.

The structure of the 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 .

In the structure of this opening/closing body device, the connection member 65 is slidable relative to the winding section 25, and the fixing hole 77 is formed as a long hole 93 that is long in the axial direction of the winding section 25. In this structure of the opening/closing body device, the new winding section 25 can use the long hole 93 provided in the insertion section 73 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 long hole 93. In addition, the insertion section 73 is slidable relative to the winding section 25. In other words, the position of the long hole 93 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.

The structure of the 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 .

In the structure of this opening/closing body device, the connection member 65 is slidable relative to the winding section 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 section 25. In the structure of this opening/closing body device, the new winding section 25 utilizes the inclined long hole 93 provided in the insertion section 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 section 73 relative to the bearing 33, such as in the direction in which it comes out. In addition, since the insertion section 73 is slidable relative to the winding section 25, the inclined long hole 93 moves parallel to the through hole 75 of the bearing 33. In other words, by sliding the insertion section 73, the inclined long hole 93 allows adjustment in both the axial direction of the winding section 25 and the height direction perpendicular to the bottom plate 69. This allows the new winding section 25 to be more widely compatible with a variety of bearings 33.

According to the structure of the opening and closing body device described in claim 1 of the present invention, even if the existing bearing is manufactured by the same company or another company, the new winding section can be easily connected to the existing bearing without the need for drilling holes on-site, thereby improving versatility, shortening construction time, and improving construction ease.

According to the structure of the opening/closing body device described in claim 2 of the present invention, the fixing holes of the insertion part of the connecting member are provided in a plurality of locations spaced apart in the axial direction of the winding part, and one of these 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, eliminating the need for on-site drilling of holes in the existing bearing or the new winding part, and allowing the new winding part to be widely used for bearings made by the same company or other companies, thereby improving versatility, shortening construction time, and improving construction ease.

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 in the axial direction of the winding part, and the fixing hole communicates with the through hole of the bearing, so that fine adjustments can be made and 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 parts, and allows new winding parts to be widely used for bearings made by the company or other companies, thereby improving versatility, shortening construction time, and improving construction ease.

According to the structure of the opening/closing body device described in claim 4 of the present invention, the longitudinal direction of the long hole, which is the fixing hole formed as a long hole in the insertion portion of the connecting member, is inclined with respect to the axial direction of the winding portion. Therefore, even if the through holes of the bearing are at different positions in the height direction, the fixing hole can be aligned with the through holes of the bearing. This eliminates the need for on-site drilling for existing bearings or new winding portions, and allows new winding portions to be widely used for bearings made by the company or other companies, thereby improving versatility, shortening installation time, and improving installation. In addition, because the fixing hole is inclined, the winding portion does not move in the direction of removal from the bearing, and lateral displacement, i.e., axial displacement, can be prevented.

According to the structure of the opening/closing body device described in claim 5 of the present invention, the connecting member is slidable relative to the winding part, 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 part for bearings made by the same company or other companies, thereby improving versatility, shortening construction time, and improving construction ease.

According to the structure of the opening/closing body device described in claim 6 of the present invention, the connecting member is slidable 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 there is no need to drill holes on-site, 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.

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

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. 11 is a front view of the winding section stored in the storage section. FIG. FIG. 2 is an exploded perspective view of a bearing and a connecting member. 1A and 1B are side views of essential parts near the bearings, showing examples of a connecting member that can be attached to different bearings. 13 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 the fixing hole is an elongated hole. FIG. 13 is a side view of a main portion near a bearing, illustrating a structure of an opening/closing body device according to Modification 1 in which an insertion portion is fixed to a bearing. FIG. 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. 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. 13 is a side view of a main portion near the bearing of an opening/closing body device structure according to variant 2, which is used when the center position of the through hole does not coincide with the center position of the winding portion. FIG. 13 is a side view of a main portion near a bearing, illustrating the structure of an opening/closing body device according to modified example 2 in which an insertion portion is fixed to a bearing whose through hole is offset in the height direction. FIG. 13 is a side view of a main portion near a bearing, illustrating the structure of an opening/closing body device according to modified example 3, in which an X-shaped fixing hole formed by intersecting two long holes is provided in the insertion portion. FIG. 13 is a side view of a main portion near a bearing, illustrating the structure of an opening/closing body device according to modified example 3 in which an insertion portion is fixed to a bearing whose through hole is offset in the height direction. FIG.

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 connecting a plurality of horizontally elongated slats 29 that are long in the width direction of the opening 21 in the vertical direction so that it can be rolled up like a blind.

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 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.

Figure 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 to be electrically operated is attached to the bearing 33. That is, brackets 35 are fixed to the building's frame 31, facing each other across the opening 21, and the bearing 33 is fixed to the bracket 35. The bearing 33 is fixed to the frame 31 via the bracket 35, but it may also be fixed directly to the frame 31. In addition, 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, 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 frames 31, but the brackets 35 may be positioned so that they protrude from the front of the frame 31, for example, from the front of the frame 31 when viewed from the outside.

2, the left half of the winding section 25 becomes the electric drive section 37, and the right half becomes 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 circumference 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 becomes 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.

The electric drive unit 37 houses an opening/closing machine 47 inside. The opening/closing machine 47 includes an electric motor, a brake for braking the electric motor, and a control device for controlling the drive 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 reeling body 41 so as not to rotate relative to the inner periphery, and rotates integrally with the reeling body 41. Therefore, when the wheel 49 rotates when driven by the electric motor, the reeling body 41 rotates. In addition, a ring-shaped driven member 51 that rotates integrally with the reeling body 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 reeling body 41 by the wheel 49 and the driven member 51.

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 rotatably supports the inner circumference of the reel unit 41 on the outer circumference of the casing 53, is provided on the outer circumference of the cylindrical casing 53.

Meanwhile, a return spring unit 55 is inserted into the winding spring section 39. This return spring unit 55 is composed of the above-mentioned non-rotating shaft 45, a plurality of wheels 57 arranged to rotate freely about this 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 a 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 that it cannot rotate relative to the inner periphery.

When the shutter curtain 27 is unwound from the winding section 25, the shutter device 11 accumulates a return spring force in the return spring 59. This return spring force is used as an auxiliary force to lift the shutter curtain 27 when the electric drive section 37 rotates in the reverse direction due to the drive of the electric motor to wind up the shutter curtain 27.

The connecting end 43, which is the 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 the 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 and closing body device may be such that the connecting ends 43 on both ends of the winding unit 25 have the connecting members 65.

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 the U-shape formed by connecting the lower ends of a pair of vertical parallel side plates 67 with a bottom plate 69 facing upward.

The connection 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. 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 diametrical 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.

In this embodiment, the portion of the winding section 25 to which the base 71 is fixed is the casing 53 of the tubular motor, which protrudes coaxially from the reel body 41 toward the bearing 33. In other words, the connecting end 43 is the extended end of the casing 53. The connecting member 65 is fixed to the outer periphery of the connecting 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.

The connecting member 65 has a U-shaped insertion portion 73 connected to a pair of connecting pieces 83 extending from a pair of base portions 71 in a direction approaching each other. The insertion portion 73 has a U-shape formed by connecting one end of a pair of perpendicular, parallel side pieces 85 to a tip piece 87. The connecting member 65 is a metal fitting in which the base portions 71, connecting pieces 83, side pieces 85, and tip piece 87 are integrally made from sheet metal material.

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. Note that the number of fixing holes 77 is not limited to two. Any one of the multiple fixing holes 77 will communicate 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 less than twice the short diameter.

4A and 4B are side views of the main part near the bearings, showing examples of a connecting member 65 to be attached to different bearings 33. FIG.
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 as 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 as 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.

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, 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 placed in 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 is completed when the pair of parallel side pieces 85 of the insertion part 73 are inserted and placed between the pair of parallel side plates 67 connected by the bottom plate 69 of the bearing 33, and the bolt 89 passes through these two side plates 67 and two side pieces 85. When manufactured in a factory, the connecting member 65 is configured to have fixing holes 77 drilled into a pair of parallel side pieces 85 of the insertion portion 73, so the holes are drilled into a flat plate surface, making processing easy.

Next, we will explain a variation of the above configuration.

[Modification 1]
FIG. 5 is a side view of a main portion 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 replaced with an elongated hole 93 .
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.

FIG. 6 is a side view of the main part near the bearing, showing the structure of an opening/closing body device according to Modification 1 in which an insertion portion 73 is fixed to a bearing 33.
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 pass through to fasten and tighten together.

[Modification 2]
FIG. 7 is a side view of the main part near the 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.

FIG. 8 is a side view of the main part near the bearing, showing 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 inclined upward toward the tip of the insertion part 73. By configuring in this direction, when a force is applied in the direction in which the insertion part 73 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.

FIG. 9 is a side view of a main portion near the bearing of an opening/closing body device structure according to a second modified example used when the center position of the through hole 75 does not coincide with the center position of the winding portion 25. FIG.
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.

FIG. 10 is a side view of the 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 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.

[Modification 3]
FIG. 11 is a side view of the main part near the 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.
The structure of the opening/closing body device according to the third modification is such that the insertion portion 73 is provided with an X-shaped fixing hole 77 in which two elongated holes 93 with inclination directions opposite to each other intersect.

FIG. 12 is a side view of the main part near the 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, so that it is possible to accommodate the through-hole 75 that is offset in the height direction with a small displacement (movement amount) in the axial direction of the insertion portion 73, compared to the case of one inclined long hole 93. 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 axial displacement of the same 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, so it is possible to accommodate the through-holes 75 that are offset over a wider range. In other words, versatility can be further improved.

The X-shaped fixing hole 77 may have a central portion where two inversely inclined fixing holes 77 intersect, which is an elongated hole 93 (straight portion) that is long in the direction along the axis of the winding portion 25. In other words, 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.

[Modification 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 the 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.

The adjustment function of variant 4 can be provided in overlap with each of the configurations of variants 1 to 3 described above.

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

Next, we will explain the operation of the above configuration.

The structure of the opening/closing body device according to this embodiment allows a new winding unit 25 to 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.

The new winding section 25 has a non-rotating connecting end 43 at its end, which is different from the rotating reel 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 section 25 has a connecting member 65, the other connecting end 43 becomes the same shaft 45 as when it is manual. In other words, the shaft 45 can be attached to the existing bearing 33 in the same manner as before.

The connecting member 65, on the other hand, 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 on the bottom plate 69 of the bearing 33. After the shaft 45 at the other connecting end 43 of the new winding section 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 and fixed to the bearing 33.

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 the through holes 75 formed in the 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 into the corresponding fixing hole 77.

When the insertion portion 73 of the connection 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 can occur due to construction errors even when the bearing is manufactured in-house, but is particularly noticeable in the case of bearings 33 manufactured by other companies, which may differ from the design stage.

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

In other words, the insertion part 73 is expandable and contractable in the axial direction of the winding part 25, so that it can be adjusted relative to the through hole 75 of the bearing 33, and the fixing hole 77 of the insertion part 73 can be aligned with the through hole 75 of the bearing 33. This eliminates the need for drilling holes on-site, and the fixing hole 77 of the insertion part 73 can be aligned with the through hole 75 of the bearing 33 with a simple adjustment by simply sliding the insertion part 73, making it possible to complete the connection work easily and in a short time.

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 connecting ends 43 in the new winding section 25 has a connecting member 65. The other connecting end 43 may be provided with the previous shaft 45. The connecting member 65 has a base 71 attached to the connecting 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, multiple fixing holes 77 are provided in the direction along the axis of the winding section 25 (the configuration of the embodiment shown in Figures 2 to 4). In other words, 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. Note that multiple can be two or more. For example, if the in-house fixing hole 77 is in the same position and the other company's fixing hole 77 is in the same position but different from the in-house fixing hole 77, there will be two variations in the fixing hole position. In this case, it is sufficient that two fixing holes, one made by the in-house fixing hole 77 and one made by the other company, are provided in the insertion section 73. In this way, the fixing holes 77 can be provided 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 construction in a short time with simple construction. Furthermore, with this structure of the opening/closing body device, the adjustment function is achieved simply by drilling multiple 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 inexpensive and improving versatility and ease of construction. 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 one of these 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 the new winding portion 25, and allows the new winding portion 25 to be widely used for bearings 33 made by the company or other companies, thereby improving versatility, shortening construction time, and improving construction ease.

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 connecting ends 43 in the new winding section 25 has a connecting member 65. The other connecting end 43 may be provided with the previous shaft 45. The connecting member 65 has a base 71 attached to the connecting 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 a long hole 93 that is long in the axial direction of the winding section 25 (the configuration of variant 1 shown in Figures 5 and 6). In other words, by utilizing the long hole 93 provided in the insertion section 73, the new winding section 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 long hole 93.

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 construction. 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 more versatile and easier to install at a low cost. As a result, the fixing hole 77 of the insertion part 73 of the connecting member 65 is formed as a long hole 93 that is long in the axial direction of the winding part 25, and the fixing hole 77 communicates with the through hole 75 of the bearing 33, making fine adjustments possible and allowing the fixing hole 77 to 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 the new winding part 25, and allows the new winding part 25 to be widely used for bearings 33 made by the company or other companies, thereby improving versatility, shortening construction time, and improving construction ease.

In addition, in the structure of this opening/closing body device, the longitudinal direction of the fixing hole 77 formed by the long hole 93 is inclined with respect to the axial direction of the winding section 25 (the configuration of variant 2 shown in Figures 7 to 10). In other words, by utilizing the inclined long hole 93 provided in the insertion section 73, the new winding section 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 long 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. Furthermore, when the inclined fixing hole 77 is fastened together with the bolt 89 that passes through the insertion portion 73 and the side plate 67 of the bearing 33, the inclined fixing hole 77 will not be misaligned with the through hole 75.

In other words, it is possible to restrict the misalignment of the insertion part 73 with respect to the bearing 33, such as the direction in which the insertion part 73 comes out. As a result, since the longitudinal direction of the fixing hole 77 formed by the long 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 drilling is not required on-site for the existing bearing 33 or the new winding part 25. The new winding part 25 can be widely used for bearings 33 made by the company or other companies, thereby improving versatility, shortening construction time, and improving construction. In addition, since the fixing hole 77 is inclined, the winding part 25 does not move in the direction of coming out with respect to the bearing 33, and it is possible to prevent lateral misalignment, i.e., misalignment in the axial direction.

In addition, in the structure of this opening/closing body device, the connection member 65 is slidable relative to the winding section 25, and one of the multiple fixing holes 77 communicates with the through hole 75 of the bearing 33 (the configuration of the modified example 4 and the configuration of the embodiment). In this structure of the opening/closing body device, the new winding section 25 can use 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 each 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 more widely compatible with various bearings 33. As a result, the connecting member 65 can slide freely relative to the winding section 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 allows the new winding section 25 to be used more widely for bearings 33 made by the company or other companies, thereby improving versatility, shortening installation time, and improving installation ease.

In addition, in the structure of this opening/closing body device, the connection member 65 is slidable relative to the winding section 25, and the fixing hole 77 is formed as a long hole 93 that is long in the axial direction of the winding section 25 (the configuration of the modified example 4 and the configuration of the modified example 1). In this structure of the opening/closing body device, the new winding section 25 can use the long hole 93 provided in the insertion section 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 long hole 93. In addition, the insertion section 73 is slidable relative to the winding section 25. In other words, the position of the long hole 93 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 part 25, and the fixing hole 77 is formed as a long hole 93 that is long in the axial direction of the winding part 25, eliminating the need for drilling holes on-site. This means that the new winding part 25 can be used more widely for bearings 33 made by the company or other companies, thereby improving versatility, shortening installation time, and improving installation ease.

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 tightened 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 shift of the insertion part 73 relative to the bearing 33, such as in the direction in which it 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 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, the connection member 65 can slide freely 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, so there is no need to drill holes 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.

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

11...Opening and closing device (shutter device)
21: Opening portion 25: Winding portion 27: Opening/closing body (shutter curtain)
Reference Signs List 31: Body 33: Bearing 35: Bracket 43: Connection end 65: Connection member 67: Side plate 69: Bottom plate 71: Base 73: Insertion portion 75: Through hole 77: Fixing hole 93: Slotted hole

Claims (7)

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 able to slide freely in the axial direction of the winding portion. 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. 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. The structure of the opening/closing body device according to claim 3, characterized in that the longitudinal direction of the long hole, which is the fixing hole, is inclined with respect to the axial direction of the winding part. The structure of the opening/closing body device according to claim 1, characterized in that the fixing holes are provided in a plurality of locations spaced apart in the axial direction of the winding section, and any one of the fixing holes communicates with the through hole of the bearing. The structure of the opening/closing body device according to claim 1, characterized in that the fixing hole 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. The structure of the opening/closing device according to claim 1, characterized in that the longitudinal direction of the fixing hole is inclined with respect to the axial direction of the winding part.

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