JP6985061B2 - Shutter device - Google Patents

Description

INDUSTRIAL APPLICABILITY The present invention relates to a shutter device in which a shutter curtain moves to open and close by winding and feeding a take-up shaft, and can be applied to various shutter devices such as a shutter device for a garage and a shutter device for an entrance / exit installed at an entrance / exit. It is a thing.

As shown in the following Patent Documents 1 to 3, the shutter curtain is uneven in the thickness direction of the shutter curtain in the shutter device in which the shutter curtain is opened and closed by winding and unwinding the take-up shaft. Some of them are configured to include a plate curtain constituent member in which a plurality of concave portions and convex portions are formed alternately and continuously in the direction of opening and closing the shutter curtain.

Jikken No. 31-9666 (Fig. 3) Jikken No. 33-3464 (Fig. 3) Japanese Unexamined Patent Publication No. 2016-217124 (FIGS. 3 and 5)

As described above, in the shutter device in which the shutter curtain includes a plate curtain component member in which a plurality of concave portions and convex portions are formed alternately and continuously in the direction of opening and closing the shutter curtain. Since the dimensions of the shutter constituent members in the direction of opening and closing the shutter curtain are larger than those of the slat used for the slat type shutter curtain, the winding diameter when the shutter curtain is wound by the winding shaft becomes large, according to this. , It is necessary to increase the storage space such as the inside of the shutter case for storing the take-up shaft, and it is required to solve this.

An object of the present invention is that even if the shutter curtain is configured to include a plate curtain component in which a plurality of concave portions and convex portions are formed alternately and continuously in the direction of opening and closing the shutter curtain. It is an object of the present invention to provide a shutter device capable of suppressing an increase in the winding diameter of a curtain winding shaft.

In the shutter device according to the present invention, the shutter curtain that opens and closes and moves by winding and unwinding the take-up shaft has irregularities in the shutter curtain thickness direction. In a shutter device including a curtain component made of a plate material which is formed alternately and continuously, the bottom of the recess of the curtain component corresponds to the outer shape of the winding shaft. It is characterized by having a curved protrusion in the outer radial direction of the shutter.

As described above, in the present invention, the bottom portion of the concave portion of the curtain constituent member has a shape that curves and protrudes in the outer diameter direction of the take-up shaft corresponding to the outer shape of the take-up shaft. Therefore, this bottom portion. It is possible to prevent the winding diameter from becoming larger when the shutter curtain is wound around the winding shaft than when the shape of the shutter is flat or curved and protrudes in the inner diameter direction of the winding shaft. As a result, it is possible to reduce the size of the storage space such as the inside of the shutter case for storing the take-up shaft.

Further, when the shape of the bottom of the recess is flat or curved and protrudes in the inner diameter direction of the take-up shaft, the take-up shaft repeats winding and feeding of the shutter curtain. And, stress due to repeated load in the thickness direction of the shutter curtain acts on this bottom, which may cause metal fatigue etc. at the bottom, but the bottom of the recess of the curtain component is the shutter as described above. Such a problem can be solved by having a shape that curves and protrudes in the outer diameter direction of the take-up shaft corresponding to the outer shape of the take-up shaft on which the shutter is taken up.

The opening / closing movement direction of the shutter curtain may be the vertical direction or the horizontal direction.

Further, in the present invention, each connecting portion connecting the bottom portion of the concave portion and the top portion of the convex portion in the curtain constituent member may be parallel to or substantially parallel to the thickness direction of the shutter curtain, or the shutter curtain thickness. It may be tilted with respect to the parallel direction.

When each joint is tilted with respect to the thickness direction of the shutter curtain as in the latter case, when the shutter curtain is wound by the take-up shaft, the joint becomes a part of the curtain component made of plate material. The portion is wound around the take-up shaft by reducing the inclination angle, and therefore, the winding diameter of the shutter curtain on the take-up shaft can be reduced by that amount.

As described above, one of the measures for inclining each joint with respect to the thickness direction of the shutter curtain is to provide the inclination direction of each joint on both sides of the shutter curtain opening / closing movement direction of the top. The distance between the two joints provided is set toward the top, and the distance between the two joints provided on both sides of the shutter curtain opening / closing movement direction at the bottom is toward the bottom. The direction is to expand. Further, by setting the tilting direction of each connecting portion to be the same direction with respect to the thickness direction of the shutter curtain, each connecting portion may be tilted with respect to the thickness direction of the shutter curtain.

Further, in the present invention, the top of the convex portion may be curved and projected in the outer diameter direction of the take-up shaft so as to correspond to the outer shape of the take-up shaft.

According to this, the shape of the top of the convex portion is the same as the shape of the bottom of the concave portion, and the shape corresponds to the outer shape of the winding shaft on which the shutter curtain is wound. It becomes possible to more effectively suppress the increase in diameter.

It should be noted that the shape of the top of the convex portion so as to be curved and protruded in the outer diameter direction of the winding shaft around which the shutter curtain is wound may be formed by forming the top portion by one curved protrusion. Alternatively, this top is formed by providing a plurality of curved protrusions that are curved and protruded in the outer diameter direction of the take-up shaft continuously in the shutter curtain opening / closing movement direction, and a connection portion between these curved protrusions. May be a recessed portion recessed in the inner diameter direction of the take-up shaft.

According to the latter, the top of the convex portion is formed by a plurality of curved protrusions that are curved and protruded in the outer diameter direction of the take-up shaft and are continuous in the shutter opening / closing movement direction. Since the connecting portion is a recessed portion in the inner diameter direction of the take-up shaft, unlike the case where the top portion is formed by one curved protrusion, the top portion is dented and deformed with a large dimension in the shutter curtain opening / closing movement direction. Can be effectively prevented.

Further, in the present invention, a plurality of the above-mentioned curtain constituent members are continuously provided in the shutter curtain opening / closing movement direction, and two curtain constituent members adjacent to each other are provided at the end of one curtain constituent member and the other curtain. It may be connected by connecting the end portions of the constituent members with a coupling tool.

This can be done even when the opening / closing movement direction of the shutter curtain is in the vertical direction or in the horizontal direction. When the shutter curtain is opened and closed in the vertical direction, an inverted U-shape that opens downward at the upper end of the lower curtain component of the two adjacent curtain components. A rising portion having an upward rising component is provided at the lower end portion of the upper curtain constituent member, and this rising portion is inserted into the inside of the inverted U-shaped connecting portion to form these rising portions. And the inverted U-shaped connecting portion may be connected by the above-mentioned coupling tool to connect the upper curtain constituent member and the lower curtain constituent member.

According to this, when connecting the lower curtain constituent member to the upper curtain constituent member, the rising portion of the upper curtain constituent member is inserted into the inside of the inverted U-shaped connecting portion of the lower curtain constituent member. The work is performed by lifting the lower curtain constituent member, whereby the weight of the lower curtain constituent member can be supported by the upper curtain constituent member, so that the rising portion and the lower portion of the upper curtain constituent member can be supported. The work for connecting the inverted U-shaped connecting portion of the side curtain constituent member with the connecting tool can be easily performed.

It should be noted that the same effect as this is obtained by providing a hanging portion having a downward hanging component at the upper end portion of the lower curtain constituent member among the two adjacent curtain constituent members, and providing a hanging portion having a downward hanging component, and the upper curtain. A U-shaped connecting portion that opens upward is provided at the lower end of the component member, and a hanging portion is inserted inside the U-shaped connecting portion to connect these U-shaped connecting portions and the hanging portion. It can also be achieved when the upper curtain constituent member and the lower curtain constituent member are connected by connecting with the coupling tool.

Further, in the present invention, when a plurality of curtain constituent members are continuously provided in the shutter curtain opening / closing movement direction as described above, two curtain constituent members adjacent to each other are connected to the end of one of the curtain constituent members. By engaging the curl portion formed on the portion with the curl portion formed on the end portion of the other curtain constituent member, the curl portion having a length in the width direction of the shutter curtain is rotated around these curl portions. It may be connected freely.

According to this, since the curtain constituent members serially connected in the shutter curtain opening / closing moving direction can rotate around the curl portion, the winding diameter of the shutter curtain when wound around the winding shaft can be reduced.

The present invention described above can be applied to a shutter device used for any purpose, and the shutter device according to the present invention may be a shutter device for a garage, a shutter device for a doorway installed at a doorway, or a window. It may be a shutter device for windows installed in, or an in-vehicle shutter device installed on the loading platform of a vehicle such as a fire truck or a truck. It may be a disaster prevention shutter device or the like.

Further, the shutter device according to the present invention may be a manual shutter device in which the shutter curtain that opens and closes by winding and unwinding the take-up shaft moves by manual operation, or is driven by a switch that rotates the take-up shaft. An electric shutter device that automatically moves the shutter curtain by force may be used.

According to the present invention, even if the shutter curtain is configured to include a plate curtain component in which a plurality of concave portions and convex portions are formed alternately and continuously in the direction of opening and closing the shutter curtain, the shutter curtain has a plurality of concave portions and convex portions thereof. It is possible to obtain the effect of suppressing an increase in the winding diameter of the take-up shaft.

FIG. 1 is a front view showing the entire shutter device according to the embodiment of the present invention. FIG. 2 is a front view showing a take-up shaft. FIG. 3 is a front view showing the take-up shaft and the shutter curtain separately. 4A and 4B show a panel which is a first curtain constituent member of a shutter curtain, FIG. 4A is a front view of the panel, and FIG. 4B is a side view of the panel. FIG. 5 is a partially enlarged side view of the panel shown in FIG. 4 (B). FIG. 6 is a side view showing a connecting structure between the upper and lower panels. FIG. 7 shows a hanging member at the upper end of the shutter curtain, slats arranged as a second curtain constituent member under the hanging member, and a plurality of slats connected in the shutter curtain opening / closing movement direction. It is a side view which shows the panel arranged under the slat of the lowermost stage including these connecting structures. FIG. 8 shows a panel in which a plurality of panels are connected in a row in the direction of opening / closing the shutter curtain, the lowest panel and the seat plate arranged under the panel, including the connecting structure thereof. It is a side view which shows. 9A and 9B show a panel to which a handle member is attached among a plurality of panels, FIG. 9A is a front view of the panel, and FIG. 9B is a side view of the panel. 10A and 10B show a handle member, FIG. 10A is a front view of the handle member, and FIG. 10B is a side view of the handle member. FIG. 11 is a partially enlarged side sectional view of the panel shown in FIG. 9 (B). FIG. 12 is a front view showing an operation for connecting a plurality of panels under the lowermost slat. FIG. 13 is a side sectional view showing when the shutter curtain is wound around the winding shaft. FIG. 14 is a side cross section showing a state of the handle member when the shutter curtain is wound around the winding shaft. FIG. 15 is a diagram similar to FIG. 11 showing an embodiment in which a handle member is attached to both surfaces of the shutter curtain in the thickness direction of the panel. FIG. 16 is a diagram similar to FIG. 11 showing a handle member of another embodiment. FIG. 17 is a diagram similar to FIG. 6 showing a connection structure according to another embodiment of the upper and lower panels. FIG. 18 is a diagram similar to FIG. 7 showing another embodiment of the connection structure between the bottom slat and the top panel.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. FIG. 1 is an overall front view of a shutter device according to an embodiment of the present invention, and this shutter device is a shutter device for a garage.

This shutter device has a shutter curtain 1 whose opening / closing movement direction is in the vertical direction, and the shutter curtain 1 opens / closes an entrance / exit 2 which is an opening of a garage in a building where the shutter device is installed. Both ends in the left-right direction, which are both ends in the width direction of the shutter curtain 1, are inserted into guide rails 4 attached to the building frame 3 such as walls on both the left and right sides of the doorway 2, and are guided to these guide rails 4. Then, the shutter curtain 1 opens and closes in the vertical direction. A shutter case 5 is arranged on the building frame such as the upper wall of the doorway 2, and inside the shutter case 5, the take-up shaft 6 is rotatably supported by the left and right brackets 7. Since the upper end portion of the shutter curtain 1 that passes through the slit formed in the lower surface 5A of the shutter case 5 and reaches the inside of the shutter case 5 is connected to the sixth, it can rotate forward and backward. By winding and unwinding the shutter curtain 1 by the take-up shaft 6, the shutter curtain 1 is guided by the guide rail 4 to open and close in the vertical direction.

The shutter device of FIG. 1 is a manual shutter device in which the shutter curtain 1 is opened and closed by a manual operation. As will be described later, the take-up shaft 6 is provided with a return spring in which the return spring force is accumulated by the take-up shaft 6 that rotates in the forward direction when the shutter curtain 1 closes and moves downward. The upward opening movement of the shutter curtain 1 performed by the reverse rotation of 6 is performed by the return spring force of the return spring as an auxiliary force. When the seat plate 8 at the lower end of the shutter curtain 1 reaches the lower surface 5A of the shutter case 5 and the shutter curtain 1 is fully opened, the shutter curtain 1 is maintained in the fully opened state by the return spring force of the return spring, and the seat plate 8 is the doorway 2. When the shutter curtain 1 that has reached the floor 2A is fully closed, the downward load due to the weight of the shutter curtain 1 unwound from the take-up shaft 6 is larger than the return spring force of the return spring, so that the shutter curtain 1 is fully closed. Maintain the state.

Since the length of the shutter curtain 1 in the width direction of the seat plate 8 of the present embodiment is the same as or smaller than the inner width dimension of the left and right guide rails 4, the seat plate 8 is a seat plate. Both ends in the length direction of 8 are not inserted inside the guide rail 4. However, the seat plate 8 may be provided with a portion to be inserted inside the guide rail 4.

FIG. 2 shows a take-up shaft 6 housed inside the shutter case 5. The take-up shaft 6 has a central shaft 12 whose both ends are non-rotatably supported by fittings 11 such as bolts and nuts by bearing portions 10 provided on the left and right brackets 7, and the outer periphery of the central shaft 12. The rotating body 13 is composed of a rotating body 13 rotatably arranged around the central axis 12, and the upper end portion of the shutter curtain 1 is connected by a hanging member described later. A plurality of wheel members 15 that are rotatable by a bearing member 14 and have a circular side view, and a plurality of wheel members 15 that are spaced apart from each other in the axial direction of the central axis 12 that is the width direction of the shutter curtain 1. It is composed of a rod-shaped connecting member 16 that connects the wheel members 15 that are juxtaposed with each other. The shutter case 5 is attached to the left and right brackets 7.

A plurality of return springs 17 by coil springs are wound around the outer circumference of the central shaft 12 and arranged between the central shaft 12 and the rotating body 13, and one end of these return springs 17 is arranged on the central shaft 12. Since the other end is connected to the wheel member 15, the return spring force is accumulated in the return spring 17 during the forward rotation of the rotating body 13 when the shutter curtain 1 is extended, and the shutter curtain 1 is wound up. During the reverse rotation of the rotating body 13, this return spring force assists the reverse rotation of the rotating body 13.

FIG. 3 shows the shutter curtain 1 in a state of being separated from the take-up shaft 6. In the shutter curtain 1 in which the upper end portion is the hanging member 18 and the lower end portion is the seat plate 8, the plurality of panels 21 which are the first curtain constituent members are in the opening / closing movement direction of the shutter curtain 1. It has a first region range A that is connected to each other and a second region range B in which a plurality of slats 41 that are members of the second curtain are connected to each other in the opening / closing movement direction of the shutter curtain 1. The upper side of the area range A is the second area range B. Each of the panels 21 and the slats 41 has dimensions in the width direction of the shutter curtain 1 whose both ends are inserted inside the left and right guide rails 4, and among the plurality of panels 21, the lowermost panel 21B The seat plate 8 is connected to the slat 41, the suspension member 18 is connected to the uppermost slat 41A among the plurality of slat 41, and the lowermost slat 41B and the uppermost panel 21A are connected to each other. Further, the length dimension of the shutter curtain 1 in the opening / closing movement direction of one panel 21 is smaller than the length dimension of the shutter curtain 1 in the opening / closing movement direction of one slat 41.

A plurality of hanging member 18s are arranged in the width direction of the shutter curtain 1, and each hanging member 18 is inserted into a hole 19 formed in the hanging member 18, such as a bolt or a screw. The upper end portion of the shutter curtain 1 is connected to the winding shaft 6 by being coupled to the wheel member 15 of the winding shaft 6 by the coupling tool. As will be described later, each hanging member 18 is slidable in the width direction of the shutter curtain 1 with respect to the uppermost slat 41A, and each hanging member 18 has a plurality of holes. Since 19s are formed so as to be spaced apart in the width direction of the shutter curtain 1 and offset in the vertical direction, the shutter is formed by selecting one hole 19 into which the coupling tool is inserted from among these holes 19. When the upper end portion of the curtain 1 is connected to the take-up shaft 6, the shutter curtain 1 is connected to the take-up shaft 6 by eliminating the one-sided drop in which one end portion in the width direction of the shutter curtain 1 is lowered with respect to the other end portion. It can be connected to.

Each panel 21 forming the first region range A of the shutter curtain 1 is formed of the same material with the same shape and the same dimensions, and has a cross-sectional shape orthogonal to the width direction of the shutter curtain 1 in each panel 21. Has the same shape and is continuous to both ends of the panel 21 inserted inside the left and right guide rails 4.

In FIGS. 4A and 4B, one of these panels 21 is shown. Each panel 21 is formed by roll forming a metal plate material such as stainless steel, steel, aluminum, and galvanized steel plate, and also has a convex portion 22 which is uneven in the thickness direction of the shutter curtain 1. A plurality of recesses 23 are alternately provided in succession in the opening / closing movement direction of the shutter curtain 1. The central portion of the convex portion 22 in the opening / closing movement direction of the shutter curtain 1 is the top portion 22A, and the central portion of the concave portion 23 in the opening / closing movement direction of the shutter curtain 1 is the bottom portion 23A. The top portion 22A and the bottom portion 23A are connected by a connecting portion 24.

As can be seen from FIG. 4B, each connecting portion 24 is inclined with respect to the thickness direction of the shutter curtain 1. This inclination direction is a direction in which the distance between the two connecting portions 24 provided on both sides of the shutter curtain 1 in the opening / closing movement direction at the top 22A gradually narrows toward the top 22A, and the shutter curtain 1 at the bottom 23A. The distance between the two connecting portions 24 provided on both sides in the opening / closing movement direction of the above is the direction in which the distance gradually increases toward the bottom portion 23A.

FIG. 5 shows a partially enlarged side view of the panel 21 shown in FIG. 4 (B). Each top 22A has a shape corresponding to the outer shape of the take-up shaft 6, and therefore, the shape of these tops 22A is a curved shape that is curved and projected in the outer diameter direction of the take-up shaft 6. There is. Further, each bottom portion 23A also has a shape corresponding to the outer shape of the take-up shaft 6, and therefore, the shape of these bottom portions 23A also has a curved shape protruding in the outer diameter direction of the take-up shaft 6. It has become. The curved shape of the top 22A of the present embodiment includes one large curved protrusion 25 provided in a large range in the opening / closing movement direction of the shutter curtain 1 at the top 22A, and the opening / closing of the shutter curtain 1 at the large curved protrusion 25. At both ends in the moving direction, the two small curved protrusions 26 and 27 provided in a range smaller in the opening / closing movement direction of the shutter curtain 1 than the large curved protrusion 25 are continuous in the opening / closing movement direction of the shutter curtain 1. The connection portion between these large curved protrusions 25 and the small curved protrusions 26, 27, which have a curved shape corresponding to the outer shape of the take-up shaft 6, is wound. It is a recessed portion 28 that is recessed in the inner diameter direction of the shutter 6.

The small curved protrusions 26 and 27 are locations where both ends of the shutter curtain 1 in the opening / closing movement direction of the top portion 22A are smoothly connected to the connecting portion 24.

As described above, the top portion 22A of the convex portion 22 is formed by the large curved protrusion 25 and the small curved protrusions 26, 27 being continuous in the opening / closing movement direction of the shutter curtain 1, and is formed by the large curved protrusion 25. Since the connection portion with the small curved protrusions 26 and 27 is the recessed portion 28, when the shutter curtain 1 unwound from the take-up shaft 6 is fully closed or the like, it is large from the front of the shutter curtain 1. Even if an external force acts on the top 22A of the convex portion 22 to cause a dent deformation, it is possible to prevent the dent deformation from extending over the entire length of the shutter curtain 1 in the top 22A in the opening / closing movement direction.

Further, as shown in FIG. 5, curved protrusions 29 and 30 protruding in the inner diameter direction of the take-up shaft 6 are provided at both ends of the shutter curtain 1 in the opening / closing movement direction at the bottom 23A of the recess 23. These curved protrusions 29 and 30 are provided so as to smoothly connect both ends of the shutter curtain 1 in the bottom portion 23A in the opening / closing movement direction to the connecting portion 24.

Further, as shown in FIG. 5, in the upper end portion of the panel 21, among the plurality of recesses 23, in the upper portion of the uppermost recess 23, diagonally upward toward the same side as the protrusion direction of the convex portion 22. An inverted U-shaped connecting portion 31 that extends and opens downward is provided. Further, at the lower end portion of the panel 21, among the plurality of convex portions 22, an extending portion 32 extending diagonally downward toward the same side as the denting direction of the concave portion 23 is provided at the lower portion of the lowermost convex portion 22. It is formed, and the tip of the extending portion 32 rises diagonally upward toward the same side as the protruding direction of the convex portion 22, and rises parallel to or substantially parallel to the inverted U-shaped connecting portion 31. A portion 33 is provided.

As described above, each of the panels 21 having a plurality of panels 21 connected one above the other to form the first region range A of the shutter curtain 1 shown in FIG. 3 has an upward rising component. The inverted U-shaped connecting portion 31 and the rising portion 33 are connected as shown in FIG. That is, the rising portion 33 provided at the lower end portion of the upper panel 21 is inserted into the inside of the inverted U-shaped connecting portion 31 provided by opening downward at the upper end portion of the lower panel 21. These connecting portions 31 and the rising portion 33 are connected by a coupling tool 34 such as a rivet or a screw inserted into a hole formed in the connecting portion 31 and the rising portion 33, and the coupling tool 34 is the shutter curtain 1. Multiple are arranged in the width direction of. As a result, the two panels 21 adjacent to each other in the vertical direction are connected to each other by the inverted U-shaped connecting portion 31, the rising portion 33, and the connecting tool 34.

FIG. 7 shows a connecting structure between the hanging member 18 and the uppermost slat 41A shown in FIG. 3A, a connecting structure between the slat 41 connected vertically, and the lowermost slat 41B. The connection structure with the upper panel 21A is shown. Each slat 41 is formed by roll forming a metal plate material, and each slat 41 excluding the lowermost slat 41B has an upper end curl portion 42 formed at the upper end portion. At the same time, the lower end curl portion 43 is formed at the lower end portion. Only the upper end curl portion 42 is formed on the lowermost slat 41B, and the lower end curl portion 43 is not formed. Since these curled portions 42, 43 are formed over the entire length in the width direction of the shutter curtain 1, they have a length in the width direction of the shutter curtain 1.

A curl portion 18A that engages with the upper end curl portion 42 of the uppermost slat 41A is formed at the lower end portion of the hanging base member 18, and the hanging base member 18 is formed by engaging the curl portions 18A and 42 with each other. On the other hand, the uppermost slat 41 is rotatably connected around the curl portions 18A and 42. Further, as described above, the hanging member 18 is slidable in the width direction of the shutter curtain 1 with respect to the uppermost slat 41A due to the engagement between the curled portions 18A and 42.

The slats 41 are connected to each other by engaging the lower end curl portion 43 of the upper slat 41 and the upper end curl portion 42 of the lower slat 41. Therefore, this connection is centered on the curl portions 42 and 43. It is rotatably performed.

Similar to the rising portion 33 of the panel 21, a rising portion 44 having an upward rising component and rising diagonally upward is provided at the lower end portion of the lowermost slat 41B, and the rising portion 44 is provided. , It is inserted into the inside of the inverted U-shaped connecting portion 31 formed at the upper end portion of the uppermost panel 21A, and these connecting portions 31 and the rising portion 44 are formed in the connecting portion 31 and the rising portion 44. The bottom slat 41B and the top panel 21A are connected by being inserted into the hole and connected by a plurality of rivets, screws, or other coupling tools 45 arranged in the width direction of the shutter curtain 1. Has been done.

FIG. 8 shows a connecting structure between the lowermost panel 21B and the seat plate 8. A plate-shaped connecting member 51 is attached to the seat plate 8 by a binder 50 such as a rivet or a screw, and the upper end portion of the connecting member extends diagonally upward like the connecting portion 31 of the panel 21. An inverted U-shaped connecting portion 52 that is open downward is provided. The rising portion 33 formed at the lower end of the lowermost panel 21B is inserted into the inverted U-shaped connecting portion 52, and these rising portions 33 and the connecting portion 52 are combined with the rising portion 33 and the connecting portion 52. The bottom panel 21B and the seat plate 8 are connected to each other by being inserted into the holes formed in the shutter curtain 1 and being connected by a plurality of joints 53 such as rivets and screws arranged in the width direction of the shutter curtain 1. It is connected.

As described above, the shutter device for the garage according to the present embodiment shown in FIG. 1 is a manual shutter device in which the shutter curtain 1 is manually opened and closed in the vertical direction. FIG. 9 shows a panel 21 which is a curtain constituent member and a plurality of the panels are connected vertically and a slat 41 which is a second curtain constituent member and a plurality of the upper and lower parts are connected to each other. As shown above, a handle member 60 is attached to the predetermined panel 21 so that the shutter curtain 1 can be opened and closed up and down by hand, and the shutter curtain 1 is completely attached to this attachment portion. It is a portion of the panel 21 that reaches a position at the height of the waist of a person who manually operates the shutter curtain 1 when the shutter curtain 1 is closed.

The attachment point of the handle member 60 in the panel 21 is the above-mentioned connecting portion 24 connecting the top portion 22A of the convex portion 22 and the bottom portion 23A of the concave portion 23. FIG. 10 shows a handle member 60, and since the connecting portion 24 to which the handle member 60 is attached is inclined with respect to the thickness direction of the shutter curtain 1 as described above, FIG. 10 (FIG. 10) As shown in B), the handle member 60 has an isosceles triangle shape or a substantially isosceles triangle shape as a whole in a side view, and is a first surface portion applied to the connecting portion 24. The second surface portion 62 extending from one end of the first surface portion 61 in the vertical direction and forming an angle in the range of 30 to 60 degrees with respect to the first surface portion 61, and the upper and lower portions of the first surface portion 61. A third surface portion extending from the other end in the direction, forming an angle in the range of 30 degrees to 60 degrees with respect to the first surface portion 61, and an angle in the range of 60 degrees to 120 degrees with respect to the second surface portion 62. With 63. Further, as shown in FIG. 10A, both ends of the handle member 60 having a length extending in the width direction of the shutter curtain 1 in the length direction are the thickness of the shutter curtain 1 as a whole. It has a curved shape that is rounded in the direction and the width direction of the shutter curtain 1.

A second surface portion for inserting a fastener for fastening the handle member 60 to the connecting portion 24 in the handle member 60 which is made of synthetic resin or metal and whose inside is solid. Two through holes 64 formed through between the 62 and the first surface portion 61 are provided in the width direction of the shutter curtain 1. These through holes 64 have a diameter smaller than that of the large-diameter hole portion 64A having a depth from the second surface portion 62 and the large-diameter hole portion 64A, and reach from the bottom of the large-diameter hole portion 64A to the first surface portion 61. It is composed of a small diameter hole portion 64B. In FIG. 11, the first surface portion 61 of the handle member 60 is applied to the connecting portion 24, and the above-mentioned fastener has a component in the thickness direction of the shutter curtain 1 and penetrates the connecting portion 24. A state in which the handle member 60 is attached to the connecting portion 24 is shown by the rivet 65. The shaft portion 65B of the rivet 65 in which the head portion 65A is inserted and locked in the large-diameter hole portion 64A in a recessed state is inserted into the small-diameter hole portion 64B and protrudes from the small-diameter hole portion 64B, and the head portion 65A At the end opposite to the shaft portion 65B, a huge deformation portion 65C of the rivet 65 locked to the small diameter hole portion 64B is formed.

As shown in FIG. 1, the handle member 60 attached to the connecting portion 24 by such a rivet 65 is provided at two locations equidistant from the center position in the width direction of the shutter curtain 1 to both sides in the width direction. At the position of, two are arranged. Further, as shown in FIG. 11, the handle members 60A and 60B are provided in each of the two connecting portions 24 provided on both sides of the shutter curtain 1 in the opening / closing moving direction in the one recess 23 of the panel 21. Be placed.

The two connecting portions 24 provided adjacent to each other in the opening / closing moving direction of the shutter curtain 1 with the convex portion 22 and the concave portion 23 sandwiched between them are in the vertical direction which is the opening / closing moving direction of the shutter curtain 1. Since the handle members 60A and 60B arranged in these connecting portions 24 have the same shape and the same dimensions, the shutter curtain 1 has the same shape and the same dimensions, but the directions in the opening / closing movement direction of the shutter curtain 1 are reversed from each other. These are arranged, and for this reason, these handle members 60A and 60B are standardized.

In FIG. 11, of the two connecting portions 24, the handle member 60A attached to the upper connecting portion 24 is used to close and move the shutter curtain 1 downward, and therefore, the handle member 60A. The second surface portion 62, which is an upward surface, is a handle surface extending from the connecting portion 24, and the shutter curtain 1 can be closed and moved downward by the hand hooked on the handle surface. Further, of the above two connecting portions 24, the handle member 60B attached to the lower connecting portion 24 is used to open and move the shutter curtain 1 upward, and therefore, the handle member 60B of the handle member 60B. The second surface portion 62, which is a downward facing surface, is also a handle surface extending from the connecting portion 24, and the shutter curtain 1 can be opened and moved upward by the hand hooked on the handle surface.

As can be seen from FIG. 11, the second surface portions 62 of the respective handle members 60A and 60B, which are the handle surfaces in this way, are inclined surfaces having an inclination component in the opening / closing movement direction of the shutter curtain 1. The tilting direction of the shutter curtain 1 with respect to the second surface portion 62 in the opening / closing direction is the moving direction of the shutter curtain 1 which is manually operated by the hand hung on the handle members 60A and 60B as the distance from the connecting portion 24 increases. Is in the opposite direction. Therefore, the inclination direction of the shutter curtain 1 in the opening / closing movement direction of the second surface portion 62 of the handle member 60A attached to the upper connecting portion 24 is such that the second surface portion 62 is on the upper side as it is separated from the connecting portion 24. The direction of inclination of the shutter curtain 1 with respect to the second surface portion 62 of the handle member 60B attached to the lower connecting portion 24 in the opening / closing moving direction is as it is separated from the connecting portion 24. The second surface portion 62 extends downward.

Therefore, when the shutter curtain is moved by the hand hung on the second surface portion 62, the hand does not slip with respect to the second surface portion 62, and the manual operation of the shutter curtain 1 by the handle member 60 is more reliable. You can do it.

Further, the handle member 60 is arranged in a connecting portion 24 of the panel 21 that is inclined with respect to the thickness direction of the shutter curtain 1, and the shutter curtain 1 is moved up and down by putting a hand on the connecting portion 24. Although it is difficult to open and close the shutter curtain 1, in the present embodiment, since the shutter curtain 1 is opened and closed by putting a hand on the handle member 60 arranged at the connecting portion 24, the shutter curtain 1 is manually opened and closed. The operation can be done easily.

In the embodiment shown in FIGS. 9 and 11, the handle member is on the inner surface of the garage, which is one of the surfaces on both sides in the thickness direction of the shutter curtain 1 which is the opening / closing body of the shutter device for the garage. Although 60 is attached, the handle member may be attached to the other surface, the outer surface of the garage, or, as described later, the handle member may be attached to both surfaces of the shutter curtain 1 in the thickness direction. May be good.

FIG. 12 shows the work performed at the site where the shutter device is installed and constructed, and in the state shown in FIG. 12, the shutter curtain 1 is attached to the take-up shaft 6 shown in FIGS. 1 and 3. Of these, the above-mentioned second region range B is formed, and the slats 41 connected to each other are connected via the suspension member 18, and the uppermost panel 21A is still connected to the lowermost slats 41B. It is not done, and the panels 21 are not yet connected to each other. At this time, the left and right guide rails 4 shown in FIG. 1 are not attached to the building frame 3, and the shutter case 5 is not attached to the left and right brackets 7 and the like.

In order to connect the uppermost panel 21A to the lowermost slat 41B suspended from the take-up shaft 6 of each slat 41, the operator lifts the uppermost panel 21A. The inverted U-shaped connecting portion 31 formed by opening the rising portion 44 of FIG. 7 provided at the lower end portion of the lowermost slat 41B downward to the upper end portion of the uppermost panel 21A. It is inserted inside, and then these rising portions 44 and the connecting portion 31 are connected by the coupling tool 45 of FIG. 7, whereby the uppermost panel 21A is connected to the lowermost slat 41B. According to this work, the work for connecting the rising portion 44 and the connecting portion 31 by the coupling tool 45 can be performed while the weight of the uppermost panel 21A is supported by the lowermost slat 41. Therefore, for example, this work can be performed. It can be easily done by one worker.

Further, in order to connect the second panel 21 from the uppermost stage to the uppermost panel 21A, the operator rotates the take-up shaft 6 in the reverse direction to raise the uppermost panel 21A, and then the operator. Lifts the second panel 21 from the top, thereby causing the rising portion 33 provided at the lower end of the top panel 21A to be the second from the top, as shown in FIG. It is inserted into the inverted U-shaped connecting portion 31 formed by opening downward at the upper end portion of the panel 21, and then the rising portion 33 and the connecting portion 31 are connected by the coupling tool 34 of FIG. They are combined, thereby connecting the panel 21 on the second stage from the top stage to the panel 21A on the top stage. Then, the same work is performed until the lowest panel 21B is connected to the second lowest panel 21.

As described above, in the present embodiment, the work of connecting the lower panel 21 to the upper panel 21 with the coupling tool 34 can be performed while the weight of the lower panel 21 is supported by the upper panel 21. The work of joining the upper panel 21 and the lower panel 21 by 34 can be easily performed by, for example, one operator.

Next, in order to connect the seat plate 8 of FIG. 8 to the lowermost panel 21B, the operator lifts the seat plate 8 so that the rising portion 33 provided at the lower end portion of the lowermost panel 21B is provided. , Inserted into the inside of the inverted U-shaped connecting portion 52 formed by opening downward at the upper end portion of the connecting member 51 of the seat plate 8, and then these rising portions 33 and the connecting portion 52 are shown in FIG. The seat plate 8 is connected to the lowermost panel 21B by the coupling tool 53 of the above. Also in this work, the rising portion 33 and the connecting portion 52 can be connected by the coupling tool 53 by supporting the weight of the seat plate 8 by the lowermost panel 21B. Therefore, this work can be performed by, for example, one operator. Easy to do.

After performing the above work, the operator manually reverse-rotates the take-up shaft 6 to raise the shutter curtain 1 to the fully open position, and then attaches the left and right guide rails 4 to the building frame 3. After that, the operator manually rotates the take-up shaft 6 in the forward direction to close the shutter curtain 1 while sliding both ends of the shutter curtain 1 in the width direction into the left and right guide rails 4. Move it. Then, the remaining work such as attaching the shutter case 5 shown in FIG. 1 to the left and right brackets 7 is performed.

If the seat plate 8 does not have a portion to be inserted inside the left and right guide rails 4, the take-up shaft 6 is rotated in the forward direction after the left and right guide rails 4 are attached to the building frame 3. The shutter curtain 1 is closed and moved while the both ends in the width direction of the shutter curtain 1 are slidably inserted into the left and right guide rails 4, and then the seat plate 8 is connected to the lowermost panel 21B. You may carry out the work for.

Further, when the shutter curtain 1 is guided by the left and right guide rails 4 to open and close up and down, it is possible to prevent the shutter curtain and the guide rail 4 from coming into direct contact with each other and generate an abnormal noise, or the shutter curtain 1 may be used. At both ends of the shutter curtain 1 in the width direction in order to prevent damage or the like from direct contact between locations separated in the opening / closing movement direction of the shutter curtain 1 when the shutter curtain 1 is wound around the winding shaft 6. A band-shaped cushioning member whose length direction is the opening / closing movement direction of the shutter curtain 1 may be attached to the panel 21 and / or the slat 41 on at least one of the surfaces on both sides of the shutter curtain 1 in the thickness direction.

FIG. 13 shows a state when the shutter curtain 1 is wound around the take-up shaft 6, and the hanging member 18 is a bolt inserted into a hole 19 provided in the hanging member 18. It is coupled to the above-mentioned wheel member 15 which is a constituent member of the take-up shaft 6 by a coupling tool 70 such as a screw or a screw.

As described above, the shutter curtain 1 according to the present embodiment is configured by using a plurality of panels 21 having a longer length dimension in the opening / closing movement direction of the shutter curtain 1 than the slats 41. As shown in 13, even when the shutter curtain 1 is wound around the take-up shaft 6, the recesses 23 provided in the respective panels 21 which are the first curtain constituent members of the shutter curtain 1 The bottom portion 23A has a curved shape, and since this shape is curved and protrudes in the outer diameter direction of the winding shaft 6 corresponding to the outer shape of the winding shaft 6, the shape of the bottom portion 23A is formed. The bottom portion 23A can be more effectively imitated to the outer shape of the take-up shaft 6 than when the shape is flat or curved and protrudes in the inner diameter direction of the take-up shaft 6. Therefore, it is possible to suppress an increase in the winding diameter when the shutter curtain 1 is wound around the winding shaft 6, thereby providing a storage space such as the inside of the shutter case 5 for storing the winding shaft 6. It is possible to reduce the size.

Further, when the shape of the bottom portion 23A is a flat shape or a shape that is curved and protrudes in the inner diameter direction of the take-up shaft, the bottom portion 23A is formed by repeating winding and feeding of the shutter curtain 1 by the take-up shaft 6. Stress is generated by the repeated load in the thickness direction of the shutter curtain 1, which may cause metal fatigue on the bottom 23A. However, as described above, the bottom 23A is wound around the shutter curtain 1. By making the winding shaft 6 curved and protruding in the outer diameter direction corresponding to the outer shape of the shaft 6, such a problem does not occur.

Further, the connecting portion 24 provided on the panel 21 for connecting the convex portion 22 and the concave portion 23 has an inclined angle with respect to the thickness direction of the shutter curtain 1, and the inclined direction is described above. As described above, the distance between the two connecting portions 24 provided on both sides of the shutter curtain 1 in the opening / closing movement direction at the top portion 22A of the convex portion 22 is such that the distance becomes narrower toward the top portion 22A, and the bottom portion of the recess 23 is formed. Since the distance between the two connecting portions 24 provided on both sides of the shutter curtain 1 in the opening / closing movement direction in 23A is in the direction of expanding toward the bottom portion 23A, the shutter is as shown in FIG. When the curtain 1 is wound by the take-up shaft 6, each connecting portion 24 that is a part of the panel 21 made of a plate material reduces the above-mentioned inclination angle, in other words, each connecting portion. 24 is wound around the take-up shaft 6 while these joints 24 become circular in the side view and approach the tangent line of the take-up shaft 6, and therefore, each of the joints 24 By reducing the tilt angle, the winding diameter of the shutter curtain 1 on the winding shaft 6 can be reduced accordingly.

Further, in the present embodiment, the top portion 22A of the convex portion 22 of each panel 21 also has a shape that curves and protrudes in the outer diameter direction of the take-up shaft 6 corresponding to the outer shape of the take-up shaft 6. Therefore, it is possible to more effectively suppress the increase in the winding diameter of the shutter curtain 1 on the winding shaft 6.

Further, the shutter curtain 1 of the present embodiment includes a panel 21 and a slat 41 having a shorter length dimension in the opening / closing movement direction of the shutter curtain 1 than the panel 21. Since it is arranged closer to the take-up shaft 6 than the panel 21, when the shutter curtain 1 is taken up by the take-up shaft 6, the slats 41 are taken up first, and then the panel 21 is taken up. The winding diameter of the shutter curtain 1 on the winding shaft 6 can be made smaller than that in the case where the entire or substantially the entire shutter curtain 1 is configured by the panel 21.

Further, forming the second region range B shown in FIG. 3 by connecting a plurality of slats 41 in the opening / closing movement direction of the shutter curtain 1 is adjacent to each other on the upper and lower sides as described in FIG. The shutter curtain 1 is formed by engaging the two slats 41 formed with the curl portion 42 formed at the end of one slats 41 and the curl portion 43 formed at the end of the other slats 41. Since these curl portions 42, 43 having a length in the width direction are rotatably connected to each other, the winding diameter of the plurality of slats 41 on the winding shaft 6 can be reduced. The winding diameter of the shutter curtain 1 can also be reduced.

Further, in the present embodiment, as described with reference to FIG. 7, the connection between the hanging member 18 and the uppermost slat 41A among the plurality of slats 41 is also connected to the curl portion 18A of the hanging member 18 and the uppermost tier. Since the curl portions 42 of the slats 41A of the above are engaged with each other and the curl portions 18A and 42 having the length in the width direction of the shutter curtain 1 are rotated around the curl portions 18A and 42, the shutter curtain 1 is also made by this. The winding diameter can be reduced.

FIG. 14 shows the state of the handle member 60 when the shutter curtain 1 is wound around the take-up shaft 6. As described above, the handle member 60 is attached to the connecting portion 24 of the panel 21, and the connecting portion 24 winds up by reducing the inclination angle of the shutter curtain 1 for opening / closing movement as described above. Although it is wound on the shaft 6, even when it is wound on the winding shaft 6, the tilt angle of the shutter curtain 1 in the opening / closing movement direction remains, so that the handle member 60 is wound on the winding shaft 6 together with the shutter curtain 1. When wound, the handle member 60 does not greatly protrude from the connecting portion 24 in the inner diameter direction of the winding shaft 6 with respect to the bottom portion 23A of the recess 23 of the panel 21. Therefore, it is possible to reduce the possibility that the handle member 60 faces the other portion of the shutter curtain 1 to which the handle member 60 is not attached and interferes with or comes into contact with the winding shaft 6 in the radial direction. It is possible to suppress damage to the member 60 and the shutter curtain 1, and it is possible to suppress an increase in the winding diameter of the shutter curtain 1 at the winding shaft 6.

FIG. 15 shows an embodiment in which the handle members 60 and 80 are attached to both surfaces of the shutter curtain 1 in the connecting portion 24 of the panel 21 in the thickness direction. Of the surfaces on both sides of the shutter curtain 1 in the connecting portion 24 in the thickness direction, the handle member 60 shown in FIGS. 9 to 11 is attached to one surface, and the handle member 60 is attached to the other surface in the same manner as the handle member 60. A handle member 80 having an isosceles triangle shape or a substantially isosceles triangle shape as a whole is attached in a side view, and the handle member 80 is also applied to the connecting portion 24 in the same manner as the handle member 60. The surface portion 81, the second surface portion 82 extending from one end of the first surface portion 81 in the vertical direction and forming an angle in the range of 30 to 60 degrees with respect to the first surface portion 81, and the first surface portion 61. A third that extends from the other end in the vertical direction and forms an angle in the range of 30 to 60 degrees with respect to the first surface portion 81 and an angle in the range of 60 degrees to 120 degrees with respect to the second surface portion 82. It has a face portion 83.

Further, in the handle member 80 made of synthetic resin or metal and having a solid inside, a through hole 84 formed through the third surface portion 83 and the first surface portion 81 is provided in the shutter curtain 1. Two are provided in the width direction of. These through holes 84 have a diameter smaller than that of the large-diameter hole portion 84A having a depth from the third surface portion 83 and the large-diameter hole portion 84A, and reach from the bottom portion of the large-diameter hole portion 84A to the first surface portion 81. It is composed of a small diameter hole portion 84B. The handle member 80 is a fastener for fastening the handle member 60 to the connecting portion 24, and has a component in the thickness direction of the shutter curtain 1 and penetrates the connecting portion 24. Together with the handle member 60, it is fastened together and attached to the connecting portion 24.

That is, the shaft portion 85B of the rivet 85 in which the head portion 85A is inserted and locked in the large diameter hole portion 64A of the handle member 60 in an embedded state is the small diameter hole portion 64B of the handle member 60 and the small diameter hole of the handle member 80. A huge deformed portion 85C of the rivet 85, which is inserted through the portion 84B and is locked to the large diameter hole portion 84A of the handle member 80, is formed at the end portion of the shaft portion 85B opposite to the head portion 85A. The huge deformation portion 85C is inserted in the large-diameter hole portion 84A in an immersive state.

Therefore, the handle members 60 and 80 are attached to both sides of the shutter curtain 1 in the connecting portion 24 in the thickness direction by being jointly fastened with rivets 85 which are common fasteners. The rivets 85 are standardized, and the work of attaching the handle members 60 and 80 to the connecting portion 24 is facilitated.

Further, like the handle member 60, the handle member 80 is attached to two connecting portions 24 adjacent to each other in the opening / closing movement direction of the shutter curtain 1, and the directions of the shutter curtain 1 in the opening / closing movement direction are mutually. Of these hand-held members 80 that are reversed, the hand-held member 80A attached to the upper connecting portion 24 is used to open and move the shutter curtain 1 upward, and therefore, the hand-held member 80A of the hand-held member 80A. The second surface portion 82, which is a downward facing surface, is a handle surface extending from the connecting portion 24, and the shutter curtain 1 can be opened and moved upward by the hand hooked on the handle surface. Further, of the above two connecting portions 24, the handle member 80B attached to the lower connecting portion 24 is used to close and move the shutter curtain 1 downward, and therefore, the handle member 80B of the handle member 80B. The second surface portion 82, which is an upward surface, is a handle surface extending from the connecting portion 24, and the shutter curtain 1 can be closed and moved downward by the hand hooked on the handle surface.

As can be seen from FIG. 15, the second surface portions 82 of the respective handle members 80A and 80B, which are the handle surfaces in this way, are inclined surfaces having an inclination component in the opening / closing movement direction of the shutter curtain 1. The tilting direction of the shutter curtain 1 with respect to the second surface portion 82 in the opening / closing direction is the moving direction of the shutter curtain 1 which is manually operated by the hand hung on the second surface portion 82 as the distance from the connecting portion 24 increases. Is in the opposite direction. Therefore, as with the handle member 60, the handle member 80 also prevents the hand from slipping with respect to the second surface portion 82 when the shutter curtain 1 is opened and closed by the hand hung on the second surface portion 82. The manual operation of the shutter curtain 1 by the handle member 80 can be performed more reliably.

FIG. 16 shows a handle member 90 according to another embodiment. Like the handle members 60 and 80, the handle member 90 having an isosceles triangle shape or a substantially isosceles triangle shape as a whole in the side view also has a first surface portion 91 applied to the connecting portion 24 and the first surface portion 91. A second surface portion 92 extending from one end of the surface portion 91 in the vertical direction and forming an angle in the range of 30 to 60 degrees with respect to the first surface portion 91, and the other end portion in the vertical direction of the first surface portion 91. It has a third surface portion 93 extending from the surface portion 91 and having an angle in the range of 30 degrees to 60 degrees with respect to the first surface portion 91 and an angle in the range of 60 degrees to 120 degrees with respect to the second surface portion 92. Between the second surface portion 92 and the first surface portion 91, a through hole 94 for inserting a rivet 65, which is a fastener for attaching the handle member 90 to the connecting portion 24 of the panel 21, is provided as described above. Similar to 64 and 84, it is formed as having a large-diameter hole portion 94A and a small-diameter hole portion 94B.

In the handle member 90, the handle surface on which the shutter curtain 1 is moved up and down is the second surface portion 92, and the handle surface is an uneven surface on which a plurality of uneven portions 92A are formed. There is. Therefore, even in the handle member 90 of this embodiment, when the shutter curtain 1 is opened and closed by the hand hung on the second surface portion 92, the hand does not slip with respect to the second surface portion 92, and the handle member 90 is prevented from slipping. The manual operation of the shutter curtain 1 can be performed more reliably.

As described above, the handle member provided with the uneven portion on the handle surface may be attached to both surfaces of the shutter curtain 1 in the thickness direction at the connecting portion 24, as in the embodiment of FIG.

Further, in the embodiment described above, the fastener for attaching the handle members 60, 80, 90 to the connecting portion 24 is the rivet 65, 85, but the shaft portion of the fastener is the shutter curtain 1. It may be composed of a screw having a component in the thickness direction of the above and penetrating the connecting portion 24, and a nut screwed to the end portion of the shaft portion of the screw.

FIG. 17 shows another embodiment of the connection structure between the panels 21 which are the first curtain constituent members constituting the shutter curtain 1. An upper end curl portion 96 is formed at the upper end portion of each panel 21, and a lower end curl portion 97 is formed at the lower end portion of each panel 21 to reduce the length of the shutter curtain 1 in the width direction. By engaging these curl portions 96 and curl portions 97, the two panels 21 that are vertically adjacent to each other are rotatably connected to each other around the curl portions 96 and 97. Therefore, the winding diameter of the shutter curtain 1 formed of the plurality of panels 21 with respect to the first region range A shown in FIG. 3 is made smaller than the connecting structure of the panels 21 described with reference to FIG. The shutter curtain 1 can be wound by the winding shaft 6, whereby the winding diameter of the entire shutter curtain 1 can be further reduced as compared with the embodiment of FIG.

When the curl portions 96 and 97 are provided at the upper and lower ends of each panel 21 as in the embodiment of FIG. 17, the seat plate 8 shown in FIG. 8 and the lowermost panel 21B are connected to each other. In order to do so, a curl portion is formed at the upper end portion of the connecting member 51 coupled to the seat plate 8 to engage with the lower end curl portion 97 provided at the lower end portion of the lowermost panel 21B, and these curls are formed. The seat plate 8 and the lowermost panel 21B may be rotatably connected to each other around the curl portion by engaging the portions.

FIG. 18 shows a panel 21 in which a plurality of slat 41s are continuously provided in the opening / closing movement direction of the shutter curtain 1, the lowermost slat 41B and a plurality of slats 41 are connected in the opening / closing movement direction of the shutter curtain 1. Of these, another embodiment of the connection structure with the uppermost panel 21A is shown. In this embodiment, a lower end curl portion 43 is also formed at the lower end portion of the lowermost slat 41B, similarly to each slat 41 disposed on the upper side of the lowermost slat 41. An upper end curl portion 98 is formed at the upper end portion of the uppermost panel 21A, and the lowermost curl portions 43, 98 having lengths in the width direction of the shutter curtain 1 are engaged with each other to form the lowermost curl portion 98. The slats 41B and the uppermost panel 21A are rotatably connected around the curl portions 43 and 98.

According to this, when the lowermost slat 41B and the uppermost panel 21A are wound by the take-up shaft 6, this winding causes the uppermost panel 21A to rotate with respect to the lowermost slat 41B. Therefore, the winding diameter can be made smaller than that of the embodiment shown in FIG. 7 and wound by the winding shaft 6, whereby the winding diameter of the entire shutter curtain 1 can be further reduced.

INDUSTRIAL APPLICABILITY The present invention can be used for various shutter devices such as a shutter device for a garage in which a shutter curtain moves to open and close by winding and feeding a take-up shaft, and a shutter device for an entrance / exit installed at an entrance / exit.

1 Shutter curtain 6 Winding shaft
21 Panel which is a curtain component 22 Convex part 22A Top 23 Recessed part 23A Bottom part 24 Connecting part 25 Large curved protrusion 26, 27 Small curved protrusion 28 Depressed part 31 Inverted U-shaped connecting part 33 Rising part 34 Coupler 96, 97,98 Panel curl

Claims (10)

The shutter curtain that opens and closes and moves by winding and unwinding the take-up shaft is uneven in the shutter curtain thickness direction. In a shutter device that includes a curtain component made of a plate material
The bottom of the concave portion of the curtain component has a shape that curves and protrudes in the outer diameter direction of the take-up shaft in correspondence with the outer shape of the take-up shaft .
The top of the convex portion has a shape that is curved and protrudes in the outer diameter direction of the take-up shaft corresponding to the outer shape of the take-up shaft.
The curved shape of the top portion has one large curved protrusion provided in a large range in the opening / closing movement direction of the shutter curtain, and both ends of the large curved protrusion in the opening / closing movement direction of the shutter curtain. Two small curved protrusions provided in a range smaller than the curved protrusion in the opening / closing movement direction of the shutter curtain are formed by being continuous in the opening / closing movement direction of the shutter curtain. A shutter device characterized in that the connection portion between the large curved protrusion and the small curved protrusion is a recess recessed in the inner diameter direction of the winding shaft. The shutter device according to claim 1, wherein each connecting portion connecting the bottom portion of the concave portion and the top portion of the convex portion is inclined with respect to the thickness direction of the shutter curtain. .. In the shutter device according to claim 2, the inclination direction of each of the connecting portions is such that the distance between the two connecting portions provided on both sides of the shutter curtain opening / closing moving direction of the top portion is narrowed toward the top portion. The shutter device is characterized in that the distance between the two connecting portions provided on both sides of the shutter curtain opening / closing movement direction of the bottom portion is in the direction of expanding toward the bottom portion. .. In the shutter device according to claim 3, curved protrusions that are curved and protruded in the inner diameter direction of the winding shaft are provided at both ends of the bottom portion in the shutter curtain opening / closing movement direction, and these curved protrusions are provided. A shutter device characterized in that both ends of the bottom portion in the opening / closing movement direction of the shutter curtain are smoothly connected to the connecting portion. In the shutter device according to any one of claims 1 to 4 , a plurality of the shutter constituent members are connected in a row in the shutter curtain opening / closing moving direction, and the two curtain constituent members adjacent to each other are the two curtain constituent members. A shutter device characterized in that an end portion of one curtain constituent member and an end portion of the other curtain constituent member are connected by being connected by a coupling tool. In the shutter device according to claim 5 , the opening / closing movement direction of the shutter curtain is in the vertical direction, and of the two adjacent curtain constituent members, the upper end portion of the lower curtain constituent member is located. In addition to being provided with an inverted U-shaped connecting portion that opens downward, a rising portion having an upward rising component is provided at the lower end portion of the upper curtain constituent member, and this rising portion is the inverted U. It is inserted inside the character-shaped connecting portion, and these rising portions and the inverted U-shaped connecting portion are connected by the coupling tool, whereby the upper curtain constituent member and the lower curtain constituent member are connected. A shutter device characterized by being connected to and. The shutter device according to any one of claims 5 or 6, wherein the plurality of curtain constituent members are formed of the same material with the same shape and the same dimensions. In the shutter device according to any one of claims 1 to 4 , a plurality of the shutter constituent members are continuously provided in the direction of opening and closing the shutter curtain, and the two curtain constituent members adjacent to each other are composed of two curtain constituent members. The length in the width direction of the shutter curtain is increased by engaging the curl portion formed at the end of one curtain component and the curl formed at the end of the other curtain component. A shutter device characterized in that it is rotatably connected around these curled portions. In the shutter device according to any one of claims 1 to 8, the opening / closing movement direction of the shutter curtain is a vertical direction, and the shutter constituent member is a handle member for opening / closing the shutter curtain. Are arranged in the direction of opening and closing the shutter curtain, and among these handle members, the upper handle member is for closing and moving the shutter curtain downward, and the lower handle member is A shutter device characterized in that the shutter curtain is designed to open and move upward. In the shutter device according to claim 9, the upper handle member and the lower handle member having the same shape and the same dimensions are arranged so that the directions in the shutter curtain opening / closing movement direction are opposite to each other. A shutter device characterized by being a thing.

Images