JP2022139568A - Temporary holding structure of shutter curtain in building shutter device and method of connecting shutter curtain - Google Patents

Abstract

To facilitate connection work and improve the work efficiency when the upper end part of a shutter curtain is connected to a winding drum rotatably supported on a skeleton side.SOLUTION: When the upper end of a shutter curtain 3 is connected to a winding drum 4, in a state where the upper part of the shutter curtain 3 is brought into contact with the winding drum 4, the upper part of the shutter curtain 3 is temporarily held by a stopper 14 whose base end is attached to a skeleton side in a swingable manner and whose tip end is attached to the upper part of the sitter curtain 3 in a detachable manner, and the connection work is performed under such a temporarily holding state.SELECTED DRAWING: Figure 10

Description

TECHNICAL FIELD The present invention relates to a technical field of a shutter curtain temporary holding structure and a shutter curtain connection method in a building shutter device installed in an opening such as an entrance of a building such as a building or a residence.

Nowadays, in some buildings such as houses, a building shutter device is installed at an opening such as an entrance, which is provided with a shutter curtain that opens and closes the opening by being guided by guide rails provided on the left and right sides of the opening. When installing such a building shutter device, the winding body (winding drum, winding wheel) on which the shutter curtain is wound is lifted to the ceiling portion by a lifting device such as a forklift, and is placed on the building side. It has been proposed to attach to the (see Patent Document 1, for example).
However, since the winding body around which the shutter curtain is wound is heavy and bulky, it is difficult to attach it to the frame side. If there is no such, there is a problem that the lifting operation cannot be performed.
On the other hand, after the upper edge of the shutter curtain is connected to the winding body attached to the ceiling, the shutter curtain is wound around the winding body, whereby the shutter curtain is wrapped around the heavy winding body. A system is known in which the shutter device is attached without the need to lift it (see Patent Document 2).

JP 2020-165199 A JP 2019-190021 A

By the way, when connecting the shutter curtain to the winding body attached to the frame side, the upper edge of the shutter curtain is connected to the winding body at a plurality of points on the left and right. The upper edge of the curtain is to be lifted to the take-up portion. In this case, the weight of the shutter curtain in the lifted portion acts on the upper end edge of the lifted shutter curtain, so that a load that tends to slide down acts, and as a result, this load is resisted. However, there are problems such as poor workability due to the need to work at high places, and these are the problems to be solved by the present invention.

The present invention was created for the purpose of solving these problems in view of the actual situation as described above. A shutter device for a building comprising a winding body that is rotatably supported by the frame and winds the shutter curtain and winds the shutter curtain so that it can be unwound. When connecting the parts, the upper part of the shutter curtain is attached to the frame side so that the base end side can swing freely, and the tip side is engaged with the upper part of the shutter curtain while the upper part of the shutter curtain is in contact with the winding body. A structure for temporarily holding a shutter curtain in a shutter device for a building characterized in that the shutter curtain is temporarily held by a detachably engaging stopper.
According to the second aspect of the invention, the alignment of the connecting portions between the upper end portion of the shutter curtain and the winding body is performed by rotating the winding body while temporarily holding the shutter curtain. It is a temporary holding structure of the shutter curtain in the shutter device for buildings of description.
According to the invention of claim 3, the shutter curtain is constructed by interlocking a plurality of slats in the vertical direction, while the tip end of the stopper is engaged with the interlock joint when the shutter curtain is temporarily held. 3. A temporary holding structure for a shutter curtain in a building shutter device according to claim 1 or 2, characterized in that:
According to the invention of claim 4, the left and right ends of the wound body are supported by left and right brackets fixed to the frame side, and a temporary storage place for the shutter curtain is assembled to the left and right brackets, and the shutter curtain is installed in the temporary storage place. 4. A temporary holding structure for a shutter curtain in a building shutter device according to any one of claims 1 to 3, wherein the upper end portion of the shutter curtain and the take-up member are connected while the shutter curtain is placed.
The invention of claim 5 is a building comprising a shutter curtain for opening and closing an opening, and a winding body which is rotatably supported on the frame side above the opening and winds the shutter curtain and winds it so that it can be drawn out. A method for connecting an upper end portion of a shutter curtain to a winding body rotatably supported on the frame side of a shutter device for commercial use, wherein the connecting method is performed in a state in which the upper portion of the shutter curtain is in contact with the winding body. a step of temporarily holding the upper portion of the shutter curtain by means of a stopper whose base end side is oscillatably attached to the frame side and whose tip end side is detachably locked to the upper portion of the shutter curtain; and temporarily holding the shutter curtain. a step of aligning the connecting portions of the upper end portion of the shutter curtain and the winding body by rotating the winding body in the above state, and connecting the upper end portion of the shutter curtain and the winding body in the aligned state. A method for connecting a shutter curtain in a building shutter device, comprising:

The invention of claim 1 can greatly contribute to simplification of the connection work between the upper end portion of the shutter curtain and the take-up drum and improvement in work efficiency.
According to the second aspect of the present invention, it is possible to easily and quickly align the connecting portions.
According to the invention of claim 3, the stopper can be easily locked to the shutter curtain using the interlock joint.
According to the invention of claim 4, it is possible to reduce the load applied to the engaging portion between the stopper and the shutter curtain when the shutter curtain is temporarily held.
According to the fifth aspect of the invention, the work of connecting the upper end portion of the shutter curtain and the take-up drum can be performed easily and efficiently.

It is a schematic front view of a shutter device. It is a rear view which shows the state which hung the shutter curtain mounted on the mounting base. It is a side view which shows the state which hung the shutter curtain mounted on the mounting base. It is a rear view which shows the state which set|placed the shutter curtain mounted on the mounting base in the temporary storage place. It is a side view which shows the state which set|placed the shutter curtain mounted on the mounting base in the temporary storage place. FIG. 10 is a rear view showing a state in which the winding drum and the uppermost slat are connected by a cord; FIG. 11 is a side view showing a state in which the winding drum and the uppermost slat are connected by a cord; It is a side view which shows the state which winds up the shutter curtain with a cord body. FIG. 10 is a rear view showing a state in which the shutter curtain is temporarily held by a stopper; (A) is a side view showing a state in which the shutter curtain is temporarily held by the stopper, and (B) is an enlarged view of the portion where the stopper is inserted into the interlock joint. FIG. 10 is a side view showing a state in which the stopper is removed after the uppermost slat is connected and fixed to the winding drum; FIG. 11 is a rear view showing a state in which the shutter curtain is completely wound up; FIG. 4 is a side view showing a state in which the shutter curtain is completely wound up; (A), (B), and (C) are a side view, a front view, and a plan view of the mounting table, respectively. (A) is a rear view of the temporary storage site, (B) is a view from AA in (A), (C) is a view from B in (A), and (D) is a view from C in (C). is. (A), (B), and (C) are a front view, a side view, and an exploded front view of the stopper, respectively; , is a diagram showing a state in which the position is changed in the left-right direction and fastened.

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. In the drawings, reference numeral 1 denotes a building shutter device installed in an opening E such as a doorway of a building such as a building or a residence. A shutter curtain 3 that is guided by a guide rail 2 to open and close the opening E, and a winding drum that is disposed above the opening E to wind the shutter curtain 3 so that it can be let out freely. (corresponding to the winding body) 4, and left and right brackets 5 fixed to the frame side while supporting the left and right ends of the winding drum 4. are also conventional.
Incidentally, the shutter device 1 of the present embodiment is provided with an electric opening/closing device 6, and is configured to rotate the winding drum 4 forward and backward based on the driving of the opening/closing device 6. , Of course, the present invention can be practiced even if it is a manual type without the opening/closing device 6 .

The shutter curtain 3 is formed by connecting a plurality of slats 3a elongated in the left-right direction vertically by interlocking joints 3b. The slats 3at) are connected to the winding drum 4 via suspension bolts 7 as will be described later. The opening E is opened and closed by being wound up and unwound. In the drawing, reference numeral 3c denotes a seat plate attached to the bottom end of the shutter curtain 3. As shown in FIG. In the following description, the direction perpendicular to the surface direction of the shutter curtain 3 (thickness direction of the shutter curtain 3) is defined as the front-rear direction. The side (left side in FIGS. 3, 5, 7, 8, 10, 11, and 13) is defined as the front side (front side), and the opposite side of the shutter curtain 3 (FIGS. 3, 5, 7, The right side in FIGS. 8, 10, 11, and 13) is the back side (rear side), but is not limited to this.

The left and right brackets 5 include a rectangular plate-like body portion 5a, a fixing piece 5b formed by bending the front edge portion of the body portion 5a toward the left and right inwards and fixed to the frame side, and the body portion 5a. It is composed of upper and lower bent pieces 5c, 5d, etc., which are bent outward from the upper and lower edges to the left and right. Both left and right ends of the winding drum 4 are rotatably supported in the central portion of the body portion 5a via bearings (not shown).

Next, the process and method for connecting the shutter curtain 3 to the winding drum 4 will be described with reference to FIGS. 12 is a view of the shutter device 1 viewed from the rear side, and FIGS. 3, 5, 7, 8, 10, 11 and 13 are side views viewed from the left and right inner sides.
First, before the shutter curtain 3 is connected to the take-up drum 4, the right and left ends of the take-up drum 4 are supported by the left and right brackets 5 fixed to the frame. In this case, the fixed pieces 5b of the left and right brackets 5 are fixed to the upper frame side of the opening E using a fixing member (not shown) such as a bolt, and between the front upper parts of the main bodies 5a of the left and right brackets 5, A reinforcing member 8 made of an angle member is installed between the rear upper end portions. Thereafter, the winding drum 4 is lifted using a lifting device such as a chain block, and the left and right ends of the lifted winding drum 4 are attached to the main body portions 5a of the left and right brackets 5 fixed to the frame side. rotatably supported through the

Next, the shutter curtain 3, which has been spirally wound in advance including the seat plate 3c and mounted on the mounting table 10, is lifted by a lifting device 9 such as a chain block (see FIGS. 2 and 3), and the left and right It is positioned above the lower end position of the bracket 5 . In this case, the shutter curtain 3 is lifted together with the mounting table 10. The mounting table 10 is shaped like a side view with its upper side and both left and right sides opened. is set slightly shorter than A plurality of rotatable rollers 11 are attached to the inner surface of the mounting table 10 to contact the outer surface of the shutter curtain 3 suspended in a spiral shape, and the shutter curtain 3 is mounted on the mounting table 10 by the rollers 11 . The shutter curtain 3 can be rolled out smoothly.

Next, the left and right brackets 5 are provided with left and right temporary storage places 12 for placing the left and right sides of the shutter curtain 3 placed on the placing table 10 when the shutter curtain 3 is connected to the take-up drum 4 . Assemble.
The temporary storage space 12 is formed by integrally fixing a plurality of L-shaped angle members by welding or the like, and is provided along the lower surfaces of the lower bent pieces 5d of the left and right brackets 5. , a first angle member 12A secured to the lower bent piece 5d with a bolt 5f, second and third angle members 12B and 12C hanging down from the front and rear portions of the first angle member 12A, these second, A square frame fixed to the left and right inner sides of the fourth angle member 12D, which is constructed between the lower parts of the third angle members 12B and 12C and is parallel to the first angle member 12A in the vertical direction, and the fourth angle member 12D. shaped bottom portion 12a, fifth to eighth angle members 12E to 12H forming left and right front and rear frames of the bottom portion 12a, and a ninth angle member 12E to 12H erected from the left and right inner side rear of the bottom portion 12a to the rear reinforcing member 8. The tenth angle member 12J and the bottom portion 12a are installed in an inclined manner between the left and right inner side ends of the eighth angle member 12H forming the rear frame of the angle member 12I and the bottom portion 12a and the upper portion of the third angle member 12C. An eleventh angle member 12K constructed between the front-rear direction intermediate portions of the fifth and sixth angle members 12E and 12F forming the left and right frames, attached to the eleventh angle member 12K and protruding upward from the bottom 12a A twelfth angle member 12L or the like is used for positioning the mounting table 10 mounted on the bottom portion 12a. The temporary storage space 12 can be detachably attached to the left and right brackets 5 by fixing the first angle members 12A to the lower bent pieces 5d of the left and right brackets 5 via bolts 5f. ing.
When the assembly of the temporary storage space 12 to the left and right brackets 5 is completed, the left and right shutter curtains 3 mounted on the mounting table 10 are lifted to the bottom portion 12a of the temporary storage space 12 using the lifting device 9. Place both sides (see FIGS. 4 and 5).

Next, the upper end of the shutter curtain 3 mounted on the mounting table 10 of the temporary storage site 12 is connected to the winding drum 4 supported by the left and right brackets 5. In this case, first, the shutter The uppermost slat 3at of the curtain 3 and the winding drum 4 are connected via a cable 13 such as a wire or rope (see FIGS. 6 and 7). This connection is achieved by locking one end of the cord body 13 to a suspension bolt 7 attached to the winding drum 4, and the other end to a bolt hole for the suspension bolt drilled in the uppermost slat 3at. This is done by locking to 3d. The suspension bolts 7 and the bolt holes 3d are provided at a plurality of locations in the left-right direction of the winding drum 4 and the uppermost slat 3at. 13.

Next, the take-up drum 4 is rotated in the shutter curtain take-up direction (clockwise direction in FIG. 8). Along with this, the cord body 13 is wound around the take-up drum 4, and the shutter curtain 3 is lifted up by being pulled by the cord body 13 and begins to be wound around the take-up drum 4 (see FIG. 8). Then, when the winding drum 4 is further rotated in the winding direction by 1/4 turn after the tip of the uppermost slat 3at has passed the uppermost position of the winding drum 4, the uppermost slat 3at and the uppermost slat 3at A plurality of subsequent slats 3a (three slats 3a including the uppermost slat 3at in FIG. 10) come into contact with the upper half of the winding drum 4. The shutter curtain 3 is temporarily held (see FIGS. 9 and 10).

The stopper 14 is in the shape of a rectangular plate, and its proximal edge is attached to the reinforcing member 8 supported between the front upper ends of the left and right brackets 5 via hinges 14a so as to be capable of swinging. Then, the tip side edge of the stopper 14 is interlocked between the slats 3a (in this embodiment, the second slat 3a and the third slat 3a from the top) in contact with the winding drum 4. It is inserted into the gap 3b and locked (see FIG. 10). In this case, the position of the interlock coupling portion 3b to which the tip portion of the stopper 14 engages is positioned on the take-up side of the shutter curtain 3 from the imaginary line L connecting the swing center of the hinge 14a and the rotation center of the take-up drum 4. By locating it at the position, it has a so-called fulcrum crossing structure. As a result, even if the shutter curtain 3 at the lifted portion is subjected to a load that tends to slip off, the shutter curtain 3 does not slip off, and the shutter curtain 3 is wound up by the stopper 14 and is pulled out. It is in a temporary holding state in which movement is restricted. In this embodiment, the stoppers 14 are attached to the reinforcing member 8 at three locations, namely, the central portion in the horizontal direction and both the left and right ends thereof, and are engaged with the three locations, the central portion in the horizontal direction and the both end portions of the shutter curtain 3 . is configured to

Here, the stopper 14 of the present embodiment is divided into two parts, a proximal half part 14b and a distal half part 14c. are connected by In this case, the bolt hole 14e formed in the proximal half portion 14b is H-shaped so that the fastening position of the bolt 14d can be adjusted in the horizontal direction and the vertical direction. The position of the tip half portion 14c relative to the side half portion 14b can be adjusted vertically and horizontally. Further, the tip side edge of the stopper 14 (the tip side edge of the tip side half 14 c ) is folded back toward the base end side. Care is taken so that the stopper 14 does not damage the shutter curtain 3 when it is locked.

Then, while the shutter curtain 3 is temporarily held by the stopper 14, the cord body 13 is removed from the suspension bolt 7 and the bolt hole 3d. In this case, even if the cord body 13 is removed, the shutter curtain 3 is temporarily held by the stopper 14, so that the shutter curtain 3 is held at the temporarily held position without moving to the winding and unwinding side.

Next, the winding drum 4 is rotated in the shutter curtain winding direction or the shutter curtain unwinding direction to align the bolt hole 3d of the uppermost slat 3at with the suspension bolt 7 of the winding drum 4. A bolt 7 is used to fixedly connect the top slat 3at to the winding drum 4 . When the fixing by the suspension bolt 7 is completed, the temporary holding of the shutter curtain 3 by the stopper 14 is released, and the stopper 14 is removed from the reinforcing member 8 (see FIG. 11).

After the uppermost slat 3at is connected to the winding drum 4 in this manner, the winding drum 4 is rotated to wind the shutter curtain 3 on the winding drum 4 (see FIGS. 12 and 13). After that, by removing the mounting table 10 and the temporary storage space 12, the operation of attaching the shutter cam 3 to the take-up drum 4 is completed.
Further, an opening/closing device 6 is attached to one of the left and right brackets 5, and a power transmission mechanism (driving sprocket, driven sprocket, transmission chain, etc., not shown) is provided between the opening/closing device 6 and the winding drum 4. , erecting guide rails 2 on the left and right sides of the opening E, fixing a lintel member to the upper part of the opening E, etc. These works are sequentially performed, and the installation work of the shutter device 1 is completed.

In this embodiment constructed as described above, the building shutter device 1 is rotatably supported by the shutter curtain 3 for opening and closing the opening E, and by the left and right brackets 5 fixed on the frame side above the opening E. The winding drum 4 and the like are provided for winding the shutter curtain 3 in such a manner that the shutter curtain 3 is rolled up, and the shutter curtain 3 is wound so that it can be unrolled. When the shutter curtain 3 is connected, with the upper portion of the shutter curtain 3 in contact with the take-up drum 4, the upper portion of the shutter curtain 3 is swayed toward the frame via the left and right brackets 5 and the reinforcing member 8 on the base end side. The sitter curtain 3 is temporarily held by a stopper 14 which is movably attached and whose tip end is detachably locked to the upper portion of the sitter curtain 3 .
As a result, the upper end portion of the shutter curtain 3 and the take-up drum 4 can be connected while the upper portion of the shutter curtain 3 is temporarily held by the stopper 14. This can greatly contribute to simplification of connection work and improvement of work efficiency without the shutter curtain 3 slipping down.

In this case, when the upper end of the shutter curtain 3 and the winding drum 4 are connected, it is necessary to align the connecting portions with each other. Rotating the drum 4 allows easy and quick alignment.

Further, in this shutter curtain 3, the shutter curtain 3 is constructed by interlocking a plurality of slats 3a in the vertical direction. , the stopper 14 can be easily and detachably locked to the shutter curtain 3 using the interlock coupling portion 3b without providing a separate locking receiving portion for the stopper 14 on the shutter curtain 3. can be squeezed.

The left and right ends of the take-up drum 4 are supported by left and right brackets 5 fixed to the frame side. The operation of connecting the shutter curtain 3 to the take-up drum 4 is performed with the curtain 3 placed thereon. As a result, the upper portion of the shutter curtain 3 is temporarily held by the stopper 14 in order to perform the connection work in a state in which the shutter curtain 3 is brought close to the take-up drum 4, and the stopper 14 and the shutter curtain 3 are engaged. It is possible to reduce the load on the stopping part. It should be noted that the present invention can be implemented even in a configuration in which no temporary storage site is provided.

Then, as a step of connecting the upper end portion of the shutter curtain 3 to the winding drum 4 rotatably supported on the frame side, in a state in which the upper portion of the shutter curtain 3 is in contact with the winding drum 4, a step of temporarily holding the upper portion of the shutter curtain 3 by means of a stopper 14 whose base end side is oscillatably attached to the frame side and whose tip end side is detachably locked to the upper portion of the shutter curtain 3; a step of rotating the winding drum 4 while holding the shutter curtain 3 to align the connecting portions between the upper end portion of the shutter curtain 3 and the winding drum 4; and connecting to the winding drum 4 . As a result, the work of connecting the upper end portion of the shutter curtain 3 and the winding drum 4 can be performed easily and efficiently.

The present invention is of course not limited to the above-described embodiment, and in the above-described embodiment, the base end side of the stopper 14 is attached to the reinforcing member 8 that is laid between the front upper portions of the left and right brackets 5. However, it can also be configured to be attached to the reinforcing member 8 that is installed between the rear upper parts of the left and right brackets 5, or it can be configured to be attached to the frame side via another member other than the reinforcing member. can also
Further, in the above-described embodiment, the stopper is configured to be engaged with the interlock joint between the slats of the shutter curtain, but the shutter curtain may be separately provided with an engagement receiving portion for the stopper.
Furthermore, in the above embodiment, the uppermost slat of the shutter curtain is connected to the take-up drum. It goes without saying that the present invention can also be practiced.
In the above-described embodiment, the horizontal width of the mounting table 10 is set to substantially the entire length of the horizontal width of the shutter curtain 3, and the shutter curtain 3 is lifted together with the mounting table 10. However, without being limited to this, for example, if the lateral width of the shutter curtain is narrow (the opening width of the opening is narrow), there is a risk that the shutter curtain will bend even if the central portion of the shutter curtain in the lateral direction is not supported. If there is no temporary storage space, it is possible to use left and right mounting tables having approximately the same width as the left and right temporary storage areas. In this case, after the left and right temporary storage areas are assembled to the left and right brackets, the mounting tables are mounted on the left and right temporary storage areas, or the mounting tables are integrally provided in the temporary storage areas in advance and It is also possible to configure so that the left and right temporary storage sites provided with the mounting bases are assembled to the left and right brackets.

INDUSTRIAL APPLICABILITY The present invention can be used for a building shutter device installed in an opening such as an entrance of a building such as a building or a residence.

REFERENCE SIGNS LIST 1 shutter device 3 shutter curtain 3a slat 3b interlock joint 4 winding drum 5 left and right brackets 12 temporary storage area 14 stopper E opening

Claims (5)

A building shutter device comprising: a shutter curtain for opening and closing an opening; When connecting the upper end of the shutter curtain to the winding body that is rotatably supported by the winding body, the upper end of the shutter curtain is placed so that the base end side is on the frame side while the upper part of the shutter curtain is in contact with the winding body. A structure for temporarily holding a shutter curtain in a shutter device for a building, characterized in that the temporary holding structure is provided by a stopper that is pivotally mounted and whose tip side is detachably locked to the upper part of the shutter curtain. 2. The shutter device for a building according to claim 1, wherein the alignment of the connecting portions between the upper end portion of the shutter curtain and the winding body is performed by rotating the winding body while temporarily holding the shutter curtain. Temporary holding structure for the shutter curtain. The shutter curtain is configured by interlocking a plurality of slats in the vertical direction, and the front end side of the stopper is engaged with the interlock joint when the shutter curtain is temporarily held. Item 3. A shutter curtain temporary holding structure in the building shutter device according to item 1 or 2. The left and right ends of the wound body are supported by left and right brackets fixed to the frame side, while a temporary storage place for the shutter curtain is attached to the left and right brackets, and the shutter curtain is placed in the temporary storage place. 4. A structure for temporarily holding a shutter curtain in a building shutter device according to claim 1, wherein the upper end portion of the shutter curtain and the winding body are connected. A building shutter device comprising: a shutter curtain for opening and closing an opening; A method of connecting the upper end of a shutter curtain to a winding body rotatably supported by a winding body, wherein the connecting method comprises: while the upper part of the shutter curtain is in contact with the winding body, the upper part of the shutter curtain is temporarily held by a stopper whose base end side is oscillatably attached to the frame side and whose tip side is detachably locked to the upper part of the shutter curtain; and rotating the winding body while the shutter curtain is temporarily held. and aligning the connecting portions of the upper end of the shutter curtain and the winding body, and connecting the upper end of the shutter curtain and the winding body in the aligned state. A method for connecting a shutter curtain in a building shutter device characterized by:

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