JP2019039160A - Shutter apparatus - Google Patents

Abstract

To provide a shutter apparatus which can restrict a winding diameter of a winding shaft of a shutter curtain from becoming larger, even though the shutter curtain is configured to include a curtain constitution member made of plates each having a plurality of concavities and convexities alternately and successively formed in a shutter curtain open/close movement direction.SOLUTION: A shutter curtain 1 which moves to open and close by winding and unwinding of a winding shaft 6 includes a panel 21 being a first curtain constitution member made of plates each having a plurality of convexities and concavities which are concave and convex in a shutter curtain thickness direction and alternately and successively formed in a shutter curtain open/close movement direction, and a slat 41 being a second curtain constitution member shorter in a dimension in the shutter curtain open/close movement direction than the panel 21. The slat 41 is arranged on a side nearer to the winding shaft 6 than the panel 21.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a shutter device in which a shutter curtain is opened and closed by winding and unwinding of a winding shaft, and can be applied to various shutter devices such as a garage shutter device and an entrance / exit shutter device installed at an entrance / exit. Is.

  In the shutter device in which the shutter curtain is opened and closed by winding and unwinding of the winding shaft, as shown in Patent Documents 1 to 3 below, the shutter curtain is uneven in the shutter curtain thickness direction. There are some which are configured to include a curtain-constituting member made of a plate material in which a plurality of concave portions and convex portions are alternately and continuously formed in the shutter curtain opening / closing movement direction.

Japanese Utility Model Publication No. 31-9666 (Fig. 3) Japanese Utility Model Publication No.33-3464 (FIG. 3) JP 2016-217124 A (FIGS. 3 and 5)

  As described above, in the shutter device in which the shutter curtain is configured to include a plate-shaped curtain constituent member in which a plurality of concave portions and convex portions are alternately and continuously formed in the shutter curtain opening / closing movement direction, Since the dimension of the shutter component in the shutter curtain opening / closing movement direction is larger than the slat used in the slat type shutter curtain, the winding diameter when the shutter curtain is wound around the winding shaft becomes larger. Therefore, it is necessary to increase the storage space such as the inside of the shutter case for storing the winding shaft, and it is required to solve this.

  It is an object of the present invention to provide a shutter even if the shutter curtain includes a plurality of concave portions and convex portions, each of which includes a plate-shaped curtain constituent member that is alternately and continuously formed in the shutter curtain opening / closing movement direction. An object of the present invention is to provide a shutter device capable of suppressing an increase in the winding diameter of the curtain winding shaft.

  In the shutter device according to the present invention, the shutter curtain that opens and closes by winding and unwinding the take-up shaft is uneven in the shutter curtain thickness direction, and each of the plurality of concave and convex portions is in the shutter curtain opening and closing movement direction. In the shutter device configured to include plate-shaped curtain constituent members that are alternately and continuously formed, the curtain constituent member is a first curtain constituent member, and the shutter curtain is the first curtain constituent member. The second curtain constituent member having a shorter dimension in the shutter curtain opening / closing movement direction than the first curtain constituent member is disposed closer to the winding shaft than the first curtain constituent member. It is characterized by that.

  As described above, the shutter curtain according to the present invention is a plate material made of a plate material in which a plurality of recesses and projections that are uneven in the shutter curtain thickness direction are formed alternately and continuously in the shutter curtain opening / closing movement direction. 1 curtain component member and the 2nd curtain component member by which the dimension of the shutter curtain opening / closing movement direction is shorter than this 1st curtain component member, This 2nd curtain component member is comprised. Since it is disposed closer to the winding shaft than the component member, when the shutter curtain is wound around the winding shaft, the second curtain component member is wound first, and then the first curtain component member is wound. Therefore, the shutter curtain is wound more than the case where the entire shutter curtain is substantially constituted by the first curtain constituent member. Possible to suppress the winding diameter of the axis is increased, thereby, it is possible to reduce the size of the storage space such as inside the shutter case for housing the winding shaft.

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

  Further, the number of second curtain constituent members may be one, or a plurality of second curtain constituent members may be provided continuously in the opening / closing movement direction of the shutter curtain. When connecting a plurality of second curtain constituent members in the shutter curtain opening / closing movement direction, a curl formed with two second curtain constituent members adjacent to each other at the end of one second curtain constituent member By engaging the curled portion formed at the end portion of the other second curtain constituting member with the curled portion having the length in the shutter curtain width direction, the curled portion can be pivotally connected. preferable.

  According to this, when the second curtain constituent member is wound around the take-up shaft, the other second curtain constituent member rotates with respect to the one second curtain constituent member. The winding diameter of the curtain constituent member can be reduced.

  Further, the first curtain constituent member and the second curtain constituent member are connected to each other by a curl portion formed at the end portion of the first curtain constituent member and a curl portion formed at the end portion of the second curtain constituent member. It is preferable to rotate freely around these curled portions having a length in the shutter curtain width direction.

  According to this, when the first curtain constituent member is wound around the take-up shaft, the first curtain constituent member rotates with respect to the second curtain constituent member, so that the second curtain constituent member and the first curtain constituent member are rotated. The winding diameter of the member can be reduced.

  In the present invention described above, the second curtain constituent member may be directly connected to the take-up shaft, or the second curtain constituent member may be connected to the take-up shaft through a suspension member.

  When the second curtain constituent member is connected to the take-up shaft via the suspension member as in the latter, the suspension member and the second curtain component member are curled at the end of the suspension member. By engaging the curled portion formed at the end portion of the second curtain constituting member with the curled portion having the length in the shutter curtain width direction, the curled portion can be pivotally connected to each other. preferable.

  According to this, when the second curtain constituent member is wound around the take-up shaft, the second curtain constituent member rotates with respect to the suspension base member. Therefore, the winding diameter of the suspension base member and the second curtain constituent member Can be reduced.

  In the present invention, the shape of the bottom of the concave portion of the first curtain constituent member may be a flat shape, a shape protruding in a curved manner in the inner diameter direction of the winding shaft, or the outside of the winding shaft. A shape protruding in a curved manner in the outer diameter direction of the winding shaft may be used in correspondence with the shape.

  As in the latter case, when the shape of the bottom of the concave portion of the first curtain constituent member is made to correspond to the outer shape of the take-up shaft to be curved and protruded in the outer diameter direction of the take-up shaft, the first curtain constituent member It is possible to suppress an increase in the winding diameter of the winding shaft, and it is also possible to reduce the storage space such as the inside of the shutter case for storing the winding shaft on which the shutter curtain is wound.

  Further, when the shape of the bottom of the concave portion of the first curtain constituting member is made to be curved and protruded in the outer diameter direction of the take-up shaft in correspondence with the outer shape of the take-up shaft, the shutter curtain is wound by the take-up shaft. Even if the feeding is repeated, the possibility of metal fatigue or the like due to repeated loading in the shutter curtain thickness direction at the bottom can be reduced.

  Furthermore, in the present invention, in the curtain constituent member, each connecting part connecting the bottom part of the concave part and the top part of the convex part may be parallel or substantially parallel to the thickness direction of the shutter curtain. You may incline with respect to the thickness direction.

  When the connecting part connecting the bottom part of the concave part and the top part of the convex part is inclined in the shutter curtain thickness direction like the latter, when the shutter curtain is wound by the winding shaft, it is made of a plate material. Since the connecting portion which is a part of the first curtain constituent member is wound around the winding shaft by reducing the inclination angle, the winding diameter of the first curtain constituent member at the winding shaft is increased accordingly. Can be reduced.

  In the present invention, the number of first curtain constituent members may be one, or a plurality of first curtain constituent members may be provided continuously in the opening / closing movement direction of the shutter curtain. When a plurality of first curtain constituent members are arranged in the shutter curtain opening / closing movement direction, two first curtain constituent members adjacent to each other are connected to an end portion of one curtain constituent member and the other curtain constituent member. You may connect by connecting the edge part of this with a coupling tool.

  This can be performed both when the shutter curtain opening / closing movement direction is vertical and when it is horizontal, and the shutter curtain opening / closing movement direction is vertical. In the case of the two first curtain constituent members adjacent to each other, an upper portion of the lower first curtain constituent member is provided with an inverted U-shaped connecting portion opened downward, and the upper side A rising portion having an upward rising component is provided at the lower end portion of the first curtain component member, and the rising portion is inserted into an inverted U-shaped connecting portion so that the rising portion and the inverted U-shape The first curtain constituent member on the upper side and the first curtain constituent member on the lower side may be connected to each other by connecting the connecting portion with the above-described connecting tool.

  According to this, when connecting the lower first curtain constituent member to the upper first curtain constituent member, the rising portion of the upper first curtain constituent member is the inverted U shape of the lower first curtain constituent member. After the lower first curtain constituent member is lifted and the weight of the lower first curtain constituent member is supported by the upper first curtain constituent member, Since the operation | work which couple | bonds the standup | rising part of the 1st curtain structural member and the reverse U-shaped connection part of the lower 1st curtain structural member with a coupling tool can be performed, this work can be performed easily.

  In the present invention, as described above, when a plurality of first curtain constituent members are arranged in the shutter curtain opening / closing movement direction, two first curtain constituent members adjacent to each other are connected to one of the first curtain constituent members. By engaging the curl portion formed at the end portion of the curtain constituent member and the curl portion formed at the end portion of the other first curtain constituent member, these have a length in the shutter curtain width direction. You may connect so that it can rotate centering on the curl part of this.

  According to this, since the first curtain constituent members arranged continuously in the shutter curtain opening / closing movement direction can rotate around the curl portion, each first curtain constituent member when wound on the take-up shaft is used. The winding diameter 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 garage shutter device, an entrance / exit shutter device installed at an entrance / exit, or a window It can be a window shutter device installed in the vehicle, or it can be an on-vehicle shutter device installed on the loading platform of a fire truck, truck, or other vehicle, and a disaster prevention zone is formed by a shutter curtain that is fully closed when a disaster such as a fire occurs. For example, a shutter device for disaster prevention may be used.

  Further, the shutter device according to the present invention may be a manual shutter device in which a shutter curtain that is opened and closed by winding and unwinding of the winding shaft is moved by manual operation, or driven from an opening / closing machine that rotates the winding shaft. An electric shutter device in which the shutter curtain automatically moves by force may be used.

  According to the present invention, even if the shutter curtain includes a curtain component member made of a plate material in which a plurality of concave portions and convex portions are continuously formed alternately in the shutter curtain opening / closing movement direction, The effect that it can suppress that the winding diameter in a winding shaft becomes large can be acquired.

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

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated based on drawing. 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 garage shutter device.

  This shutter device has a shutter curtain 1 whose opening / closing movement direction is the up / down direction, and this shutter curtain 1 opens / closes an entrance / exit 2 that is an opening of a garage that is a building in which the shutter device is installed. Both end portions 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 the left and right sides of the entrance 2 and guided to these guide rails 4. Thus, the shutter curtain 1 moves up and down in the vertical direction. A shutter case 5 is disposed on a building housing such as an upper wall of the doorway 2, and a winding shaft 6 is rotatably supported by left and right brackets 7 inside the shutter case 5. 6 is connected to 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, so that it can rotate forward and backward. By winding and unwinding the shutter curtain 1 by the winding shaft 6, the shutter curtain 1 is guided by the guide rail 4 and moved up and down 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 manual operation. As will be described later, the winding shaft 6 is provided with a return spring in which a return spring force is accumulated by the winding shaft 6 that rotates forward by closing and moving the shutter curtain 1 downward. The upward movement of the shutter curtain 1 performed by the reverse rotation of the shutter 6 is performed using the return spring force of the return spring as an auxiliary force. When the shutter plate 1 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 open state by the return spring force of the return spring, and the seat plate 8 is in the entrance 2 When the shutter curtain 1 reaching the floor 2A is fully closed, the downward load due to the weight of the shutter curtain 1 fed out from the winding shaft 6 becomes larger than the return spring force of the return spring, so the shutter curtain 1 is fully closed. Maintain state.

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

  FIG. 2 shows the winding shaft 6 housed in the shutter case 5. The winding shaft 6 includes a center shaft 12 supported at both ends by a coupling 11 such as a bolt or a nut by bearings 10 provided on the left and right brackets 7, and an outer periphery of the center shaft 12. The rotating body 13 is composed of a rotating body 13 that is rotatably arranged around the central axis 12, and is connected to the upper end portion of the shutter curtain 1 by a suspension member that will be 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 that are spaced apart in the axial direction of a central axis 12 that is the width direction of the shutter curtain 1. Are formed of rod-shaped connecting members 16 that connect the wheel members 15 arranged side by side. A shutter case 5 is attached to the left and right brackets 7.

  Between the central shaft 12 and the rotating body 13, a plurality of return springs 17 by coil springs are disposed around the outer periphery of the central shaft 12, and one end of these return springs 17 is attached to 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, the reverse spring of the rotating body 13 is assisted by the return spring force.

  FIG. 3 shows the shutter curtain 1 separated from the take-up shaft 6. In the shutter curtain 1 whose upper end portion is a suspension member 18 and whose lower end portion is a seat plate 8, a plurality of panels 21 which are first curtain constituent members are arranged in the opening / closing movement direction of the shutter curtain 1. The first area range A that is continuously provided and the second area range B in which the plurality of slats 41 that are the second curtain constituting members are continuously provided in the opening and closing movement direction of the shutter curtain 1 are provided. The upper side of the area range A is the second area range B. Each panel 21 and slat 41 have dimensions in the width direction of the shutter curtain 1 whose both end portions are inserted into the left and right guide rails 4, and among the plurality of panels 21, the lowermost panel 21 </ b> B. The seat plate 8 is connected, the suspension member 18 is connected to the uppermost slat 41A among the plurality of slats 41, and the lowermost slat 41B and the uppermost panel 21A are connected. Further, the length dimension in the opening / closing movement direction of the shutter curtain 1 for one panel 21 is smaller than the length dimension in the opening / closing movement direction of the shutter curtain 1 for one slat 41.

  A plurality of suspension members 18 are arranged in the width direction of the shutter curtain 1, and each suspension member 18 is inserted into a hole 19 formed in these suspension members 18. The upper end 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 suspension member 18 is slidable in the width direction of the shutter curtain 1 with respect to the uppermost slat 41A, and each suspension member 18 has a plurality of holes. 19 is formed with a gap in the width direction of the shutter curtain 1 and shifted in the vertical direction. By selecting one hole 19 into which the above-mentioned coupler is inserted, the shutter 19 is selected. When the upper end of the curtain 1 is connected to the take-up shaft 6, the shutter curtain 1 is removed from the one end in the width direction of the shutter curtain 1 with respect to the other end. Can be connected to.

  Each of the panels 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 the cross-sectional shape of each panel 21 orthogonal to the width direction of the shutter curtain 1. Are formed in the same shape and continue to both ends of the panel 21 inserted into the left and right guide rails 4.

  4A and 4B, one panel 21 is shown among these panels 21. FIG. Each panel 21 is formed by roll-forming a metal plate material such as stainless steel, steel, aluminum, galvanized steel plate, and the like, and projections 22 that are uneven in the thickness direction of the shutter curtain 1. A plurality of recesses 23 are alternately provided continuously in the opening / closing movement direction of the shutter curtain 1. Of the convex portion 22, the central portion in the opening / closing movement direction of the shutter curtain 1 is the top portion 22A, and in the concave portion 23, the central portion 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 interval between the two connecting portions 24 provided on both sides of the opening / closing movement direction of the shutter curtain 1 in the top portion 22A gradually decreases toward the top portion 22A, and the shutter curtain 1 in the bottom portion 23A. The distance between the two connecting portions 24 provided on both sides in the opening / closing movement direction is a direction in which the distance gradually increases toward the bottom portion 23A.

  FIG. 5 is a partially enlarged side view of the panel 21 shown in FIG. Each of the top portions 22A has a shape corresponding to the outer shape of the winding shaft 6. For this reason, the shape of these top portions 22A is a curved shape that curves and protrudes in the outer diameter direction of the winding shaft 6. Yes. Each bottom portion 23A also has a shape corresponding to the outer shape of the winding shaft 6. For this reason, the shape of the top portion 22A is also a curved shape that curves and projects in the outer diameter direction of the winding shaft 6. It has become. The curved shape of the top portion 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 movement direction, two small curved protrusions 26 and 27 provided in a range in which the opening / closing movement direction of the shutter curtain 1 is smaller than the large curved protrusion 25 are continuous in the opening / closing movement direction of the shutter curtain 1. The connecting portion between the large curved protrusions 25 and the small curved protrusions 26 and 27, which are formed in a curved shape corresponding to the outer shape of the winding shaft 6, A recess 28 is recessed in the inner diameter direction of the spindle 6.

  The small curved protrusions 26 and 27 are portions that smoothly connect both ends of the top portion 22 </ b> A in the opening / closing movement direction of the shutter curtain 1 to the connecting portion 24.

  As described above, the top portion 22A of the convex portion 22 is formed by the large curved projecting portion 25 and the small curved projecting portions 26 and 27 being continuous in the opening / closing movement direction of the shutter curtain 1, and the large curved projecting portion 25 and Since the connection portion with the small curved protrusions 26 and 27 is the recess portion 28, when the shutter curtain 1 fed out from the winding shaft 6 is fully closed, it is large from the front of the shutter curtain 1. Even if the external force acts and the dent deformation occurs in the top portion 22A of the convex portion 22, the dent deformation can be prevented from extending over the entire length in the opening / closing movement direction of the shutter curtain 1 at the top portion 22A.

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

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

  In order to form the first area range A of the shutter curtain 1 shown in FIG. 3, the plurality of panels 21 connected in the vertical direction each have an upward rising component as described above. The reverse 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 inverted U-shaped connecting portion 31 provided to open downward at the upper end portion of the lower panel 21, The connecting portion 31 and the rising portion 33 are connected by a connecting 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 connecting tool 34 is connected to the shutter curtain 1. Are arranged in the width direction. Thereby, the two panels 21 adjoining in the up-down direction are connected by the inverted U-shaped connecting part 31, the rising part 33, and the coupler 34.

  7A and 7B, the connecting structure of the suspension base member 18 and the uppermost slat 41A shown in FIG. 3A, the connecting structure of the slats 41 connected vertically, the lowermost slat 41B and the uppermost slat 41A. A connection structure with the upper panel 21A is shown. Each slat 41 is formed by roll-forming a metal plate, and each slat 41 except for the lowermost slat 41B has an upper end curl portion 42 at the upper end. In addition, a lower end curl portion 43 is formed at the lower end portion. Only the upper end curl portion 42 is formed in the lowermost slat 41B, and the lower end curl portion 43 is not formed. Since these curl portions 42 and 43 are formed over the entire length in the width direction of the shutter curtain 1, the curl portions 42 and 43 have a length in the width direction of the shutter curtain 1.

  A curling portion 18A that engages with the upper end curled portion 42 of the uppermost slat 41A is formed at the lower end portion of the hanging member 18, and the hanging member 18 is engaged by the engagement between the curled portions 18A and 42. On the other hand, the uppermost slat 41 is connected to the curled portions 18A and 42 so as to be rotatable. Further, as described above, the suspension member 18 is slidable in the width direction of the shutter curtain 1 with respect to the uppermost slat 41A by 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. For this reason, this connection is centered on the curl portions 42 and 43. It is performed freely.

  At the lower end of the lowermost slat 41B, similarly to the rising portion 33 of the panel 21, a rising portion 44 having an upward rising component and rising obliquely upward is provided. Are inserted into an inverted U-shaped connecting part 31 formed at the upper end of the uppermost panel 21A, and these connecting part 31 and rising part 44 are formed in the connecting part 31 and rising part 44. The lowermost slat 41B and the uppermost panel 21A are connected to each other by being joined by a plurality of fittings 45 such as rivets and screws that are inserted in the holes and are arranged in the width direction of the shutter curtain 1. Has been.

  FIG. 8 shows a connection structure between the lowermost panel 21 </ b> B and the seat plate 8. A plate-like connecting member 51 is attached to the seat plate 8 by a coupling tool 50 such as a rivet or a screw, and the upper end portion of this connecting member extends obliquely upward like the connecting portion 31 of the panel 21. In addition, an inverted U-shaped connecting portion 52 that opens downward is provided. The rising portion 33 formed at the lower end portion of the lowermost panel 21B is inserted into the inverted U-shaped connecting portion 52, and the rising portion 33 and the connecting portion 52 are connected to the rising portion 33 and the connecting portion 52. The lowermost panel 21B and the seat plate 8 are connected to each other by a plurality of couplers 53 such as rivets and screws arranged in the width direction of the shutter curtain 1. It is connected.

  As described above, the garage shutter device 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 constituting member 21 which is a plurality of curtain constituent members, and a slat 41 which is a second curtain constituting member and which is connected to the upper and lower portions. As shown in the figure, a handle member 60 is attached to the predetermined panel 21 so that the shutter curtain 1 can be moved up and down by placing a hand. This is the position of the panel 21 that has reached the level of the waist of the person who manually operates the shutter curtain 1 when the shutter curtain 1 is closed.

  The attachment portion of the handle member 60 on the panel 21 is the connecting portion 24 that connects 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 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. As shown in B), the handle member 60 has an isosceles triangle shape or a substantially isosceles triangle shape in a side view, and is a first surface portion applied to the connecting portion 24. 61, a second surface portion 62 that extends from one end portion of the first surface portion 61 in the vertical direction and forms an angle in the range of 30 to 60 degrees with respect to the first surface portion 61, and the upper and lower surfaces of the first surface portion 61. A third surface portion extending from the other end of the direction, forming an angle in the range of 30 to 60 degrees with respect to the first surface portion 61, and forming an angle in the range of 60 to 120 degrees with respect to the second surface portion 62. 63. As shown in FIG. 10A, both end portions in the length direction of the handle member 60 having a length extending in the width direction of the shutter curtain 1 are as a whole the thickness of the shutter curtain 1. The curved shape is rounded in the direction and the width direction of the shutter curtain 1.

  To the handle member 60 made of synthetic resin or metal and having a solid inside, the second surface portion is inserted in order to insert a fastener for fixing the handle member 60 to the connecting portion 24. Two through holes 64 are formed in the width direction of the shutter curtain 1 so as to penetrate between the second surface 62 and the first surface portion 61. These through holes 64 have a large diameter hole portion 64A having a depth from the second surface portion 62 and a diameter smaller than that of the large diameter hole portion 64A, and reach the first surface portion 61 from the bottom of the large diameter hole portion 64A. The small-diameter hole 64B. In FIG. 11, the first surface portion 61 of the handle member 60 is applied to the connecting portion 24, and the above-described fastening device 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 by the rivet 65 is shown. The shaft portion 65B of the rivet 65 into which the head portion 65A is inserted and locked in the large diameter hole portion 64A is inserted into the small diameter hole portion 64B and protrudes from the small diameter hole portion 64B. An enormous deformation portion 65C of the rivet 65 locked to the small-diameter hole portion 64B is formed at the end opposite to the shaft portion 65B.

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

  The two connecting portions 24 provided adjacent to each other in the opening / closing movement direction of the shutter curtain 1 with the convex portion 22 and the concave portion 23 interposed therebetween are the vertical direction that is the opening / closing movement direction of the shutter curtain 1. Therefore, the handle members 60A and 60B disposed in these connecting portions 24 have the same shape and the same dimensions, but the directions of the shutter curtain 1 in the opening / closing movement direction are opposite to each other. For this reason, the handle members 60A and 60B are made common.

  In FIG. 11, of the two connecting portions 24, the handle member 60A attached to the upper connecting portion 24 is used for closing and moving the shutter curtain 1 downward. For this reason, the handle member 60A is used. The second surface portion 62 that is an upward surface is a handle surface that extends from the connecting portion 24, and the shutter curtain 1 can be closed and moved downward by a hand hung on the handle surface. Of the 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. The second surface portion 62 which is a downward surface is also a handle surface extending from the connecting portion 24, and the shutter curtain 1 can be opened and moved upward by a hand hung on the handle surface.

  As can be seen from FIG. 11, the second surface portion 62 of each of the handle members 60 </ b> A and 60 </ b> B serving as the handle surface is an inclined surface having a tilt component in the opening / closing movement direction of the shutter curtain 1. The direction of inclination 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 that is moved manually by a hand hung on the handle members 60A and 60B as the distance from the connecting portion 24 increases. Is the direction to the opposite side. For this reason, the second surface portion 62 of the handle member 60A attached to the upper connecting portion 24 is inclined in the opening / closing movement direction of the shutter curtain 1 as the second surface portion 62 moves upward as the distance from the connecting portion 24 increases. The direction of the inclination of the shutter curtain 1 in the opening / closing movement direction of the second surface portion 62 of the handle member 60B attached to the lower connecting portion 24 is as the distance from the connecting portion 24 increases. This is the direction in which the second surface portion 62 extends downward.

  For this reason, when the shutter curtain is moved by the hand hung on the second surface portion 62, the hand is prevented from slipping with respect to the second surface portion 62, and the manual operation of the shutter curtain 1 by the handle member 60 is more reliably performed. It can be done.

  In addition, the handle member 60 is disposed in the connecting portion 24 that is inclined with respect to the thickness direction of the shutter curtain 1 in the panel 21, and the shutter curtain 1 is moved up and down by placing a hand on the connecting portion 24. Although it is difficult to open and close, in this embodiment, since the shutter curtain 1 is opened and closed by placing a hand on the handle member 60 arranged in the connecting portion 24, the shutter curtain 1 for performing this opening and closing movement is manually operated. Easy to operate.

  In the embodiment shown in FIGS. 9 and 11, the handle member is provided 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 serving as the opening / closing body of the garage shutter device. 60 is attached, however, the handle member may be attached to the other surface of the garage, or the handle member may be attached to both sides in the thickness direction of the shutter curtain 1 as will be described later. Also good.

  FIG. 12 shows the work performed at the site where the shutter device is installed and constructed. The state shown in FIG. 12 is that the shutter curtain 1 is placed on the winding shaft 6 shown in FIGS. Among them, the slats 41 that form the second region range B and are connected to each other are connected via the suspension member 18, and the uppermost panel 21A is still connected to the lowermost slat 41B. In other words, 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 housing 3, and the shutter case 5 is not attached to the left and right brackets 7 or the like.

  In order to connect the uppermost panel 21A to the lowermost slat 41B suspended from the winding shaft 6 among the slats 41, the operator lifts the uppermost panel 21A, 7, the rising portion 44 of FIG. 7 provided at the lower end portion of the lowermost slat 41 </ b> B is opened downward at the upper end portion of the uppermost panel 21 </ b> A. Then, the rising portion 44 and the connecting portion 31 are connected by the coupler 45 shown in FIG. 7, whereby the uppermost panel 21A is connected to the lowermost slat 41B. According to this operation, the operation for connecting the rising portion 44 and the connecting portion 31 by the coupler 45 can be performed while the weight of the uppermost panel 21A is supported by the lowermost slat 41. It can be easily done by one worker.

  Further, in order to connect the uppermost panel 21A to the uppermost panel 21A, the operator reversely rotates the winding shaft 6 to raise the uppermost panel 21A. Lifts the second-stage panel 21 from the uppermost stage. As a result, as shown in FIG. 6, the rising portion 33 provided at the lower end of the uppermost panel 21A is moved to the second-stage from the uppermost stage. 6 is inserted into the inside of an inverted U-shaped connecting portion 31 formed by opening downward at the upper end of the panel 21, and thereafter, the rising portion 33 and the connecting portion 31 are connected by the coupler 34 of FIG. Thus, the second panel 21 from the uppermost stage is connected to the uppermost panel 21A. Then, the same operation is performed until the lowermost panel 21B is connected to the lowermost panel 21 from the lowermost stage.

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

  Next, in order to connect the seat plate 8 of FIG. 8 to the lowermost panel 21B, the operator lifts the seat plate 8 and thereby raises the rising portion 33 provided at the lower end of the lowermost panel 21B. 8 is inserted into the inside of an 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 thereafter, the rising portion 33 and the connecting portion 52 are inserted into FIG. Thus, the seat plate 8 is connected to the lowermost panel 21B. Even in this work, since the rising portion 33 and the connecting portion 52 can be coupled by the coupling tool 53 while the weight of the seat plate 8 is supported by the lowermost panel 21B, this work can be performed by, for example, a single operator. Easy to do.

  After performing the above operations, the operator manually reverses the winding shaft 6 to raise the shutter curtain 1 to the fully open position, and then attach the left and right guide rails 4 to the building housing 3. Thereafter, the operator manually closes the shutter curtain 1 while manually rotating the winding shaft 6 so that both end portions in the width direction of the shutter curtain 1 are slidably inserted into the left and right guide rails 4. Move. 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 include a portion to be inserted into the left and right guide rails 4, the winding shaft 6 is rotated forward after the left and right guide rails 4 are attached to the building frame 3. Thus, the shutter curtain 1 is closed and moved while both end portions 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. Work may be carried out.

  Further, when the shutter curtain 1 is guided by the left and right guide rails 4 and moved up and down, the shutter curtain and the guide rails 4 can be prevented from coming into direct contact with each other to prevent abnormal noise or the like. To prevent the shutter curtain 1 from being in direct contact with each other in the opening / closing movement direction when wound on the winding shaft 6, damage at the both ends of the shutter curtain 1 in the width direction is prevented. A band-shaped buffer 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 in the thickness direction of the shutter curtain 1.

  FIG. 13 shows a state in which the shutter curtain 1 is wound around the winding shaft 6, and the suspension member 18 is a bolt inserted into a hole 19 provided in the suspension member 18. It is coupled to the wheel member 15 which is a constituent member of the winding 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 in which the length of the shutter curtain 1 in the opening / closing movement direction is longer than that of the slat 41. As shown in FIG. 13, even when the shutter curtain 1 is wound around the winding shaft 6, the recesses 23 provided in the respective panels 21 that are the first curtain constituent members of the shutter curtain 1. The bottom portion 23A has a curved shape, and this shape is a shape that curves and projects in the outer diameter direction of the take-up shaft 6 in correspondence with the outer shape of the take-up shaft 6. Therefore, the shape of the bottom portion 23A The bottom portion 23 </ b> A can be made to follow the outer shape of the winding shaft 6 more effectively than a flat shape or a shape that curves and projects in the inner diameter direction of the winding shaft 6. For this reason, it is possible to suppress an increase in the winding diameter when the shutter curtain 1 is wound around the winding shaft 6, thereby reducing the storage space such as the inside of the shutter case 5 for storing the winding shaft 6. Miniaturization can be achieved.

  Further, when the shape of the bottom 23A is a flat shape or a shape that curves and protrudes in the inner diameter direction of the take-up shaft, the bottom 23A is brought into contact with the bottom 23A by repeatedly winding and unwinding the shutter curtain 1 by the take-up shaft 6. Stress due to repetitive loading in the thickness direction of the shutter curtain 1 is generated, which may cause metal fatigue or the like on the bottom 23A. However, as described above, the bottom 23A is wound around which the shutter curtain 1 is wound. Corresponding to the outer shape of the shaft 6, the winding shaft 6 is curved and protruded in the outer diameter direction, so that such a problem does not occur.

  Further, the connecting portion 24 provided to connect the convex portion 22 and the concave portion 23 to the panel 21 has an angle inclined with respect to the thickness direction of the shutter curtain 1, and this inclination direction is the same as described above. As described above, the interval between the two connecting portions 24 provided on both sides in the opening / closing movement direction of the shutter curtain 1 at the top portion 22A of the convex portion 22 is in a direction narrowing toward the top portion 22A, and the bottom portion of the concave portion 23 Since the interval between the two connecting portions 24 provided on both sides of the opening / closing movement direction of the shutter curtain 1 in 23A is a direction that expands toward the bottom portion 23A, as shown in FIG. When the curtain 1 is taken up 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-described inclination angle, in other words. The connecting portions 24 are wound around the take-up shaft 6 while the connecting portions 24 are circular in a side view and approach the tangent line of the take-up shaft 6. As the inclination angle of the connecting portion 24 decreases, the winding diameter of the shutter curtain 1 at the winding shaft 6 can be reduced by that amount.

  Furthermore, in this embodiment, the top portions 22 </ b> A of the convex portions 22 of the panels 21 also have a shape that curves and projects in the outer diameter direction of the winding shaft 6 in correspondence with the outer shape of the winding shaft 6. Therefore, it is possible to more effectively suppress an increase in the winding diameter of the shutter curtain 1 at the winding shaft 6.

  The shutter curtain 1 of the present embodiment includes a panel 21 and a slat 41 whose length in the opening / closing movement direction of the shutter curtain 1 is shorter than the panel 21. Since it is arranged on the side closer to the winding shaft 6 than the panel 21, when the shutter curtain 1 is wound around the winding shaft 6, the slat 41 is wound up first, and then the panel 21 is wound up. The winding diameter of the shutter curtain 1 on the take-up shaft 6 can be made smaller than when the entire shutter curtain 1 or substantially the whole is constituted by the panel 21.

  In addition, 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 vertically as described in FIG. The two slats 41 are engaged with each other by a curled portion 42 formed at the end portion of one slat 41 and a curled portion 43 formed at the end portion of the other slat 41. Since the curling portions 42 and 43 having lengths in the width direction are pivotally connected to each other, the winding diameter of the plurality of slats 41 at the winding shaft 6 can be reduced. Can also reduce the winding diameter of the shutter curtain 1.

  In the present embodiment, as described with reference to FIG. 7, the suspension member 18 and the uppermost slat 41 </ b> A among the plurality of slats 41 are also connected to the curled portion 18 </ b> A of the suspension member 18. The curl portion 42 of the slat 41A is engaged so that the curl portions 18A, 42 having the length in the width direction of the shutter curtain 1 are rotatable around the shutter curtain 1, and thus the shutter curtain 1 The winding diameter can be reduced.

  FIG. 14 shows a state of the handle member 60 when the shutter curtain 1 is wound around the winding shaft 6. As described above, the handle member 60 is attached to the connecting portion 24 of the panel 21. As described above, the connecting portion 24 reduces the inclination angle of the shutter curtain 1 to the opening and closing movement, and winds up. Although it is wound around the shaft 6, even when it is wound around the winding shaft 6, the inclination angle in the opening / closing movement direction of the shutter curtain 1 remains, so that the handle member 60 is attached to the winding shaft 6 together with the shutter curtain 1. When wound, the handle member 60 does not protrude greatly from the connecting portion 24 in the inner diameter direction of the winding shaft 6 with respect to the bottom 23A of the recess 23 of the panel 21. For this reason, it is possible to reduce the possibility that the handle member 60 interferes with and contacts other parts of the shutter curtain 1 where the handle member 60 is not attached in the diameter direction of the winding shaft 6. The member 60 and the shutter curtain 1 can be prevented from being damaged, and the winding diameter of the shutter curtain 1 at the winding shaft 6 can be suppressed from increasing.

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

  Further, the handle member 80 made of synthetic resin or metal and having a solid inside has a through hole 84 penetratingly formed between the third surface portion 83 and the first surface portion 81. Two are provided in the width direction. These through holes 84 have a large-diameter hole portion 84A having a depth from the third surface portion 83 and a diameter smaller than the large-diameter hole portion 84A, and reach the first surface portion 81 from the bottom of the large-diameter hole portion 84A. The small-diameter hole portion 84B. The handle member 80 is a fastening device for fastening the handle member 60 to the joint portion 24, and has a component in the thickness direction of the shutter curtain 1 and penetrates the joint portion 24. Thus, it is fastened together with the handle member 60 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 is inserted into the small diameter hole portion 64B of the handle member 60 and the small diameter hole of the handle member 80. An enormous deformation portion 85C of the rivet 85 that is locked to the large-diameter hole portion 84A of the handle member 80 is formed at the opposite end of the shaft portion 85B from the head portion 85A. The enormous deformation portion 85C is inserted into the large-diameter hole portion 84A in an immersive state.

  For this reason, the handle members 60 and 80 are attached to the surfaces on both sides in the thickness direction of the shutter curtain 1 in the connecting portion 24 by being fastened together with rivets 85 serving as common fastening devices. The common use of the rivet 85 and the facilitation of attaching the handle members 60 and 80 to the connecting portion 24 are achieved.

  Similarly to 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 different. Of these handle members 80 that are reversed, the handle member 80A attached to the upper connecting portion 24 is used to open and move the shutter curtain 1 upward. The second surface portion 82 which is a downward surface is a handle surface extending from the connecting portion 24, and the shutter curtain 1 can be opened and moved upward by a hand hung on the handle surface. Of the two connecting portions 24, the handle member 80B attached to the lower connecting portion 24 is used for closing and moving the shutter curtain 1 downward. 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 a hand hung on the handle surface.

  As can be seen from FIG. 15, the second surface portion 82 of each of the handle members 80 </ b> A and 80 </ b> B serving as the handle surface is an inclined surface having a tilt component in the opening / closing movement direction of the shutter curtain 1. The inclination direction of the shutter curtain 1 with respect to the second surface portion 82 with respect to the opening / closing direction of the shutter curtain 1 is the moving direction of the shutter curtain 1 that is moved manually by a hand hung on the second surface portion 82 as the distance from the connecting portion 24 increases. Is the direction to the opposite side. For this reason, 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. Thus, 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. As in the case of the handle members 60 and 80, the handle member 90 whose overall shape is an isosceles triangle shape or a substantially isosceles triangle shape in a side view is the 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 portion in the vertical direction of the surface portion 91 and forming an angle in a 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. And a third surface portion 93 that forms an angle in the range of 30 to 60 degrees with respect to the first surface portion 91 and forms an angle in the range of 60 to 120 degrees with respect to the second surface portion 92. Between the second surface portion 92 and the first surface portion 91, there is a through hole 94 for inserting a rivet 65 as a fastener for attaching the handle member 90 to the connecting portion 24 of the panel 21. 64 and 84, it is formed of a large-diameter hole portion 94A and a small-diameter hole portion 94B.

  In this handle member 90, the handle surface on which the hand is hung to move the shutter curtain 1 up and down is the second surface portion 92, and this handle surface is an uneven surface formed with a plurality of uneven portions 92A. Yes. For this reason, even with 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 removed. The shutter curtain 1 can be manually operated with more certainty.

  As described above, the handle member having the concavo-convex portion on the handle surface may be attached to the surfaces on both sides in the thickness direction of the shutter curtain 1 in the connecting portion 24 as in the embodiment of FIG.

  Further, in the embodiment described above, the fasteners for attaching the handle members 60, 80, 90 to the connecting portion 24 are the rivets 65, 85. However, the shaft portion of the fastener is the shutter curtain 1. It is good also as a thing from the screw | thread which has the component of the thickness direction of this, and penetrates the connection part 24, and the nut screwed together by the edge part of the axial part of this screw | thread.

  FIG. 17 shows another embodiment of the connection structure of the panels 21 that are the first curtain constituting 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, and the length of the shutter curtain 1 in the width direction is increased. When these curled portions 96 and the curled portion 97 are engaged, the two panels 21 adjacent to each other in the vertical direction are connected to each other so as to be rotatable around the curled portions 96 and 97. For this reason, the winding diameter about the 1st field range A shown in Drawing 3 of shutter curtain 1 formed of a plurality of panels 21 rather than the connection structure of panels 21 explained in Drawing 6 is made small, The shutter curtain 1 can be taken up by the take-up shaft 6, whereby the diameter of the entire shutter curtain 1 can be made smaller than that in the embodiment of FIG. 6.

  When the curled portions 96 and 97 are provided at the upper and lower end portions of each panel 21 as in the embodiment of FIG. 17, the seat plate 8 and the lowermost panel 21B shown in FIG. For this purpose, a curl portion that engages with a lower end curl portion 97 provided at the lower end portion of the lowermost panel 21B is formed at the upper end portion of the connecting member 51 coupled to the seat plate 8, and these curls are formed. By engaging the parts, the seat plate 8 and the lowermost panel 21B may be connected to each other so as to be rotatable around the curled part.

  FIG. 18 shows a lowermost slat 41B among a plurality of slats 41 connected in the opening / closing movement direction of the shutter curtain 1 and a panel 21 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, the lower end curl portion 43 is formed at the lower end portion of the lowermost slat 41B as well as the respective slats 41 disposed above the lowermost slat 41, An upper end curl portion 98 is formed at the upper end portion of the uppermost panel 21A, and the curl portions 43, 98 having the lengths in the width direction of the shutter curtain 1 are engaged with each other to form the lowermost step curl portion 98A. The slat 41 </ b> B and the uppermost panel 21 </ b> A are connected so as to be rotatable around the curled portions 43 and 98.

  According to this, when the lowermost slat 41B and the uppermost panel 21A are taken up by the take-up shaft 6, the uppermost panel 21A rotates 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 the winding shaft 6 can be wound up, 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 garage shutter device in which a shutter curtain is opened and closed by winding and unwinding a winding shaft, and an entrance / exit shutter device installed at an entrance / exit.

DESCRIPTION OF SYMBOLS 1 Shutter curtain 6 Winding axis | shaft 18 Suspension member 18A Curled part of suspension member 20 Panel 22 which is 1st curtain structural member 22 Convex part 22A Top part 23 Concave part 23A Bottom part 24 Connection part 31 Reverse U-shaped connection part 33 Standing part 34 Joint 41 Slat as second curtain component 42, 43 Curled portion of slat 96, 97, 98 Curled portion of panel

Claims (10)

The shutter curtain that opens and closes by winding and unwinding the take-up shaft has a plurality of recesses and projections that are uneven in the shutter curtain thickness direction, and are continuously formed in the shutter curtain opening and closing movement direction alternately. In a shutter device configured to include a curtain component member made of a plate material,
The curtain constituent member is a first curtain constituent member, and the shutter curtain includes a second curtain constituent member whose dimension in the shutter curtain opening and closing movement direction is shorter than that of the first curtain constituent member. A shutter device, wherein the second curtain constituent member is arranged closer to the winding shaft than the first curtain constituent member.   2. The shutter device according to claim 1, wherein a plurality of the second curtain constituent members are continuously provided in a shutter curtain opening / closing movement direction, and the two second curtain constituent members adjacent to each other are arranged in one direction. The curl portion formed at the end portion of the second curtain constituent member and the curl portion formed at the end portion of the other second curtain constituent member are engaged with each other, so that the shutter curtain width direction A shutter device characterized in that it is rotatably connected around these curled portions having a length.   3. The shutter device according to claim 1, wherein the first curtain constituent member and the second curtain constituent member are connected, and the connection is a curl formed at an end of the first curtain constituent member. And the curl portion formed at the end portion of the second curtain constituting member are engaged with each other so that the curl portion having a length in the shutter curtain width direction is rotatable about the curl portion. Shutter device characterized by that.   4. The shutter device according to claim 1, wherein the second curtain constituent member is connected to the take-up shaft via a suspension member. 5. To have   5. The shutter device according to claim 4, wherein the suspension base member and the second curtain constituent member are formed at an end portion of the suspension base member and an end portion of the second curtain constituent member. A shutter device characterized in that, by engaging with a curled portion, the curled portion is connected to be rotatable around the curled portion having a length in the shutter curtain width direction.   6. The shutter device according to claim 1, wherein a bottom portion of the concave portion of the first curtain constituting member is curved and protrudes in an outer diameter direction of the winding shaft corresponding to an outer shape of the winding shaft. A shutter device characterized by having a shape.   The shutter device according to any one of claims 1 to 6, wherein a bottom portion of the concave portion and a top portion of the convex portion of the first curtain constituting member are connected by a connecting portion, and each connecting portion is a shutter curtain. A shutter device that is inclined with respect to the thickness direction.   The shutter device according to any one of claims 1 to 7, wherein a plurality of the first curtain constituent members are continuously provided in a shutter curtain opening / closing movement direction, and the two first curtains adjacent to each other. The shutter is characterized in that the constituent members are connected by connecting the end portion of one first curtain constituent member and the end portion of the other first curtain constituent member with a coupler.   9. The shutter device according to claim 8, wherein an opening / closing movement direction of the shutter curtain is a vertical direction, and of the two first curtain constituent members adjacent to each other, the lower one of the first curtain constituent members. The upper end portion is provided with an inverted U-shaped connecting portion that opens downward, and the lower end portion of the upper first curtain component member is provided with a rising portion having an upward rising component. When the rising portion is inserted into the inverted U-shaped connecting portion, and the rising portion and the inverted U-shaped connecting portion are coupled by the coupler, the upper first curtain component member And the lower first curtain constituting member are connected to each other.   The shutter device according to any one of claims 1 to 7, wherein a plurality of the first curtain constituent members are continuously provided in a shutter curtain opening / closing movement direction, and the two first curtains adjacent to each other. The component member is engaged by the curl portion formed at the end portion of one first curtain component member and the curl portion formed at the end portion of the other first curtain component member, A shutter device characterized in that it is rotatably connected around these curled portions having a length in the shutter curtain width direction.

Images