JP2019070243A - Shutter device - Google Patents

Abstract

To provide a shutter device which can prevent a detachment thereof from a guide rail even when an excessive force is applied to a shutter curtain.SOLUTION: A shutter device includes a pair of spaced-apart opposing guide rails 20 between which an opening portion is defined, an opening/closing body provided so as to be movable along the guide rails, and a detachment preventing member provided on each of slats 32 constituting an opening/closing body to prevent the opening/closing body in the guide rails from detaching from the guide rails. The detachment prevention member is configured to include an attachment portion which is attached to the widthwise end portion of the slat, and a claw portion which is continuous from the widthwise outer side of the attachment portion and bent in the guide rail, the attachment portion having an end face which is opposed to inclined portions inclined in the depth direction from the upper and lower end portions of the body portion of the slat and extends along the widthwise direction of the slat, and an end edge which extending along the width direction of the slat at the end face is in contact attachment with the inclined portion.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a shutter device, and more particularly to a shutter device provided with a lock mechanism.

  2. Description of the Related Art Conventionally, there is known a shutter device provided with a lock mechanism that prevents a shutter curtain for opening and closing a frontage from falling off (falling off) from a guide rail due to wind pressure or the like. The lock mechanism prevents the shutter curtain from falling off by attaching a retaining member to the end of the slat that constitutes the shutter curtain and locking it on the guide rail.

JP, 2011-149191, A

However, there is a problem that sufficient wind resistance can not be obtained depending on the attachment state of the retaining member to the slat or the relationship between the shutter curtain and the guide rail.
The present invention provides a shutter device capable of preventing the shutter curtain from falling off from the guide rail even when an excessive force is applied to the shutter curtain in order to solve the above-mentioned problems.

As a configuration of a shutter device for solving the above problems, a guide rail provided facing each other between the openings, an opening / closing body provided movable along the guide rail, and a slat constituting the opening / closing body A shutter device provided with a detachment preventing member for preventing detachment of the opening / closing body from the guide rail in the guide rail, wherein the detachment preventing member is an attachment portion attached to a width direction end of the slat; The attachment portion is continuous with the width direction outer side of the attachment portion and includes a claw portion bent in the guide rail, and the attachment portion faces an inclined portion which is inclined in the depth direction from the upper and lower end portions of the main body of the slat, It has an end face extending along the width direction of the slat, and an edge of the end face extending along the width direction of the slat is attached in contact with the inclined portion And the.
According to this configuration, when the dropout preventing member is attached to the slat by welding, a gap suitable for welding can be formed between the dropout preventing member and the slat, so when the opening / closing body is swung in the width direction due to wind pressure or the like. Even when the claws of the fall-off preventing member are in contact with the guide rails, since the fall-off prevention member is firmly fixed to the slat, the fall-off prevention member can be prevented from coming off the slat. As a result, it is possible to prevent the opening and closing body from falling off the guide rail.
In addition, as another configuration of the shutter device, the mounting portion is configured to include a through hole penetrating in the thickness direction.
According to this configuration, when the dropout prevention member is fixed to the slat, the position of the dropout prevention member with respect to the slat can be stably positioned by inserting the jig into the through hole.
In addition, as another configuration of the shutter device, a guide rail provided so as to be opposed to each other between the openings, and a plurality of slats provided rotatably movably along the guide rail. A shutter device comprising an opening / closing body and a displacement prevention member provided in a guide rail and preventing displacement of the slats in the width direction, wherein the displacement prevention member is provided from the widthwise end edge of the slat Is also provided to project outward, and from the attachment part attached to the width direction end of the slat and the attachment part projecting outward beyond the width direction end edge of the slat, in the vertical direction so as to contact the upper and lower connecting part end faces A pair of stoppers extending obliquely with respect to the mounting portion, and the stoppers are provided with recesses recessed outward in the width direction on the slat side of the bent portion where the mounting starts with respect to the mounting portion It has a configuration that.
According to this configuration, when the slats are inserted and removed from each other and the retaining work is performed to adjust the length of the slats according to the opening and closing length of the opening and closing body, Bending is performed, but the swelling that occurs in the bent portion occurs as the stopper is bent back, so extra repair work such as scraping the swelling is not necessary, and the force required for bending is It becomes smaller and accurate work becomes possible. As a result, since the slats can be reliably positioned, even if the opening and closing body swings in the width direction due to wind pressure or the like, the opening and closing body can be prevented from falling off the guide rail.
Further, as another configuration of the shutter device, a guide rail provided facing each other between the openings, an opening / closing body provided movably along the guide rail, and a guide rail provided from the guide rail And a guide rail form a space for accommodating the end of the opening and closing body, and an outer frame provided on the inner side in the width direction of the opening and closing body, and an outer frame in the width direction outer side of the opening and closing body A shutter device comprising an inner frame provided, wherein the outer frame and the inner frame face a front surface and a rear surface at an end portion side of the opening / closing body, and have a pair of plates having opposing surfaces extending parallel to the front surface and the rear surface Each piece is provided, and the facing surface of the plate piece of the outer frame and the facing surface of the plate piece of the inner frame are provided flush with each other.
According to this configuration, when the opening / closing body swings in the width direction due to wind pressure or the like, the angle at which the opening / closing body tilts decreases, so the amount of engagement with which the falling-off prevention member engages with the guide rail increases. Can be more reliably prevented from falling off the guide rails.
Further, as another configuration of the shutter device, a guide rail provided facing each other between the openings, an opening / closing body provided movably along the guide rail, and an opening / closing body connected along the opening / closing direction A shutter device comprising a plurality of pipe bodies and a retaining member in which the pipe body is attached to the pipe body provided in the guide rail, wherein the guide rail is a retaining member on the entry side of the pipe body. It was set as the structure provided with a pair of stopper frame which forms the opening part of width smaller than an outside diameter size.
According to this configuration, since the width of the opening formed by the stopper frame is smaller than the outer diameter of the retaining member, the retaining member serves as the stopper frame when the opening / closing body is swung in the width direction by wind pressure or the like. Because of the engagement, the opening and closing body can be more reliably prevented from falling off the guide rail.
The above summary of the invention does not enumerate all necessary features of the present invention, and subcombinations of these feature groups can also be the invention.

It is a schematic front view of a shutter apparatus. It is a longitudinal cross-sectional view of a shutter curtain and a winding mechanism. It is a cross-sectional view of a guide rail and a locking mechanism. It is a perspective view of a slat end. It is a top view of a lock plate. It is a figure which shows the relationship of the lock plate with respect to a slat. It is a figure which shows operation | movement of a locking mechanism. It is a figure which shows the other form of a lock plate. It is a figure which shows a welding operation. It is a figure which shows the other form of a lock plate. It is a figure which shows the other form of a lock plate. It is a figure which shows a welding operation. It is a figure which shows the other form of a lock plate. It is a perspective view of a slat end. It is a figure which shows the other form of a slat. It is a figure which shows the other form of a lock plate. It is a perspective view of a slat end. It is a figure which shows the other form of a shutter curtain. It is a figure which shows the slip prevention member of a slat. It is a figure which shows the other form of a shutter curtain. It is a front view of other shutter devices. It is a figure showing the lock mechanism in other shutter devices.

  Hereinafter, the present invention will be described in detail through the embodiments of the invention, but the following embodiments do not limit the invention according to the claims, and all combinations of the features described in the embodiments are the invention. It is not necessarily essential to the solution but includes a configuration that is selectively adopted.

  FIG. 1 is a schematic front view of a shutter device 10 according to the present invention, and FIG. 2 is a longitudinal sectional view of a shutter curtain 30 and a winding mechanism 70. In FIG. 1 and FIG. 2, the shutter device 10 as the opening and closing device is installed in an opening 14 formed in a structure casing (hereinafter simply referred to as a casing) 12. The housing 12 is, for example, an outer wall or the like that divides the inside and the outside of a structure such as a house, a building, a warehouse, or a factory. The opening 14 is formed in the housing 12 and is formed as a space that communicates inside and outside.

  The shutter device 10 is movable along the longitudinal direction of a guide rail 20; 20 and a guide rail 20; 20, which are erected apart from each other on both sides in the width direction of the opening 14, and the opening 14 is opened. The shutter curtain 16 as an opening / closing member to be closed, the shutter case 16 provided above the opening 14 and the guide rail 20; 20, and the winding mechanism 70 provided in the housing space inside the shutter case 16 .

  In the present specification, “width direction” indicates a direction (left and right direction) orthogonal to the opening and closing (up and down) direction of the shutter curtain 30, and “depth direction” indicates the thickness (front and back) of the shutter curtain 30. Means direction. The “winding direction” indicates the direction in which the shutter curtain 30 ascends along the guide rails 20; 20 and the opening 14 opens, and the “delivery direction” indicates the shutter curtain 30 as the guide rails 20; It descends along 20 and indicates the direction in which the opening 14 closes.

  FIG. 3 is a transverse sectional view of the guide rail 20 and the lock mechanism, and FIG. 4 is a perspective view showing the widthwise end of the slat 32. As shown in FIG. As shown in FIG. 1, the guide rails 20; 20 are erected along the housing 12 forming the opening 14 so that the longitudinal direction is perpendicular to the structure housing 12.

  As shown in FIG. 3, the guide rail 20 includes a receiving frame 21 fixed to the opening 14 of the housing 12, an intermediate frame 22, an inner frame 23 fixed to the receiving frame 21 via the intermediate frame 22, and a receiving frame 21. And an outer frame 26; 27 fixed to the inner frame 23 via the support frame 24;

  The receiving frame 21 is formed in a U-shape having a substrate 21a provided along the end face of the housing 12 and a pair of side plates 21b and 21c bent at right angles in the same direction from the substrate 21a toward the width direction outside. The substrate 21a is provided along the opening 14 of the casing 12, and the casing 12 is fixed by being sandwiched between the side plates 21b and 21c.

  The intermediate frame 22 is provided on the center side in the depth direction of the substrate 21 a. The intermediate frame 22 extends along the substrate 21a, and has a receiving frame attachment plate 22a fixed to the substrate 21a, and a post plate 22b bent at a right angle from the receiving frame attachment plate 22a and extending toward the widthwise opening side And an outer frame attachment plate 22c which is bent at a right angle in a direction opposite to the receiving frame attachment plate 22a from the column plate 22b and to which the outer frame 27 is attached.

The inner frame 23 is formed by bending a plurality of times at right angles in the depth direction and the width direction so as to have an opening 29 into which the end of the shutter curtain 30 can be inserted in cross sectional view. And a part of a guide area R which is a space in which the lock plate 60 provided on the slat 32 constituting the shutter curtain 30 moves.
The space formed by the inner frame 23 is an opening so that the length dimension in the depth direction on the opening 29 side is slightly wider than the thickness of the slat 32 and the back side protrudes in the depth direction indoor side It is formed to have a space wider than the length dimension in the depth direction on the 29 side.

  Specifically, the inner frame 23 has a guide plate 23a extending in the width direction, a back plate 23b bent to the indoor side in the depth direction at a right angle from the guide plate 23a, and a width direction opening side perpendicular to the back plate 23b. From the wall plate 23c and a wall plate 23d bent at a right angle to the outside in the depth direction from the wall plate 23c and extending parallel to the back plate 23b, and from the wall plate 23d It is formed to have a guide plate 23e which is bent at a right angle to the width direction opening side and extends in parallel with the guide plate 23a.

  The guide plate 23a positioned on the outdoor side in the depth direction is set to have a length in the width direction shorter than that of the column plate 22b of the intermediate frame 22, and the back plate 23b continuous with the guide plate 23a has a length in the depth direction The length dimension is set to substantially the same length dimension as the receiving frame mounting plate 22 a of the intermediate frame 22. The inner frame 23 is fixed by bringing the guide plate 23 a into close contact with the column plate 22 b of the intermediate frame 22 and the back plate 23 b into close contact with the receiving frame attachment plate 22 a of the intermediate frame 22. Further, the length dimension of the guide plate 23e positioned on the indoor side in the depth direction is set shorter than the length dimension of the guide plate 23a. By setting the length dimension of the guide plate 23e shorter than the length dimension of the guide plate 23a, the wall plate 23d extending from the guide plate 23e to the indoor side in the depth direction and the wall plate 23d continuously extend in the width direction, The wall plate 23c continuous with the back plate 23b forms a space allowing movement of the lock plate 60. In the present embodiment, the dimensions of the guide plate 23a and the guide plate 23e are set so as to be positioned at substantially the same position in the width direction.

The support frame 24; 25 is provided between the inner frame 23 and the outer frame 26; 27 and constitutes a structural member of the guide rail 20.
The support frame 24 is provided along a recessed portion which is recessed at a right angle by the outer periphery of the guide plate 23e of the inner frame 23 and the wall plate 23d. Specifically, it is bent at a right angle so as to extend along the guide plate 23e and the wall plate 23d of the inner frame 23, and a pillar extending along the guide plate 23e and extending along the wall plate 23d. A plate 24b, a bent piece 24c bent at a right angle from the column plate 24a toward the indoor side in the depth direction, and a bent formed from the column 24b at a right angle toward the opening in the width direction It is formed to have a piece 24d.

In a state in which the support frame 24 is fixed to the recessed portion, the length dimension of the column plate 24a is set so as to protrude a predetermined length in the width direction from the end edge of the guide plate 23e, and the column plate 24b is The length dimension is set such that the outer surface of the bent piece 24 d is flush with the side plate 21 b of the receiving frame 21.
Further, the support frame 25 is formed in a U-shaped cross section having a column plate 25a and side plates 25b and 25c formed by bending the column plate 25a at right angles in the same direction. The support frame 25 has one side plate 25 b fixed to the post plate 22 b of the intermediate frame 22 so that the post plate 25 a extends in the depth direction. The length dimension of the column plate 25 a is set such that the outer surface of the other side plate 25 c is flush with the outer surface of the side plate 21 c of the receiving frame 21.

  The outer frames 26 and 27 are formed symmetrically with respect to the shutter curtain 30. The outer frame 26 is bent at a right angle from the decorative plate 26 a toward the outdoor side in the depth direction from the decorative plate 26 a extending along the side plate 21 b of the receiving frame 21 and the bent pieces 24 d of the support frame 24. A decorative plate 26b extending along the bent pieces 24c, and a guide plate 26c formed by bending at right angles from the decorative plate 26b toward the widthwise frame side and extending along the column plate 24a toward the inner frame 23 Have. The outer frame 27 is bent at a right angle to the indoor side in the depth direction from the decorative plate 27a by the decorative plate 27a extending along the side plate 21c of the receiving frame 21 and the side plate 25c of the support frame 25, and the outer frame mounting plate 22c of the intermediate frame 22 And a guide plate 27c bent at a right angle along the outer frame attachment plate 22c and the post plate 22b.

In the outer frame 26; 27, the end of the guide plate 26c is in abutment with the end of the guide plate 23e of the inner frame 23, and the end of the guide plate 27c is opposed to the end of the guide plate 23a of the inner frame 23. The length dimension of the guide plate 26c; 27c is set. The outer frame 26; 27, the guide plate 26c; 27c and the inner frame 23 constitute a guide region R for guiding the movement of the shutter curtain 30.
Also, the guide rails such that the surface 26z of the guide plate 26c and the surface 23z of the guide plate 23e of the inner frame 23 are flush, the surface 27z of the guide plate 27c and the surface 23y of the guide plate 23a of the inner frame 23 are flush. The thickness of each of the plate members of the receiving frame 21, the middle frame 22, the inner frame 23, the support frames 24; 25 and the outer frame 26;

  That is, a guide surface formed on the inner side in the depth direction by the surface 26z and the surface 23z of the guide plate 26c of the outer frame 26 and the guide plate 23e of the inner frame 23, the guide plate 27c of the outer frame 27 and the guide plate of the inner frame 23 The guide surface formed on the outdoor side in the depth direction is set parallel to the surface 27z of the surface 23a and the surface 23y.

Length dimension in the depth direction of the entrance side space formed by the guide plates 26c and 27c of the outer frame 26; 27 and length dimension in the depth direction of the back side space formed by the guide plates 23a and 23e of the inner frame 23 Setting the same, as shown in FIG. 7, when a pulling force to the slat 32 in the width direction inward shown by the arrow X1 in the figure is generated by the wind pressure applied to the entire shutter curtain 30, etc. The amount of 60 can be increased.
For example, the length dimension in the depth direction of the entrance side space formed by the guide plate 26c; 27d of the outer frame 26; 27 is the length in the depth direction of the back side space formed by the guide plate 23a; If it is larger or smaller than the length dimension, the inclination of the slat 32 becomes large and the amount of engagement of the lock plate 60 against the inner frame 23 becomes small, and the guide rails 20; 20 are configured as shown in FIG. The ability to prevent the shutter curtain 30 from falling off from the guide rails 20; 20 is reduced compared to the case where the guide rails 20; 20, but according to the present embodiment, the amount of engagement of the lock plate 60 with the guide rails 20; Can.

  As shown in FIG. 1, the shutter curtain 30 is configured by connecting a plurality of slats 32 along the moving direction of the shutter curtain 30. Each slat 32 is a plate made of, for example, steel, stainless steel, aluminum or the like, and extends along the width direction of the opening 14 and the guide rail in a state in which both ends are swallowed by the guide region R 20; guided by 20.

  As shown in FIG. 4, the slat 32 has a main portion 32a of which the central portion is gently recessed in the concave direction toward the rear in the depth direction, and an upper end portion of the main portion 32a. It has a first curled portion 32b which extends while curving and a second curled portion 32c which extends continuously while being bent forward and continuously with the lower end portion at the lower end portion of the main body portion 32a.

  As shown in FIG. 2, the first curled portion 32 b of the slat 32 rotatably engages with the second curled portion 32 c of the other slat 32 adjacent in the winding direction, and the second curled portion 32 c of the slat 32 is And rotatably engaged with the first curled portion 32b of another slat 32 adjacent in the feeding direction. That is, the plurality of slats 32 are rotatably connected to each other via the first curled portion 32 b and the second curled portion 32 c, respectively, to constitute one shutter curtain 30.

  Hereinafter, the lock mechanism 40 provided in the shutter device 10 will be described. As shown in FIG. 3 and FIG. 4, the lock mechanism 40 is configured by the inner frame 23 of the guide rail 20 and the lock plate 60 disposed at the widthwise outer end of the slat 32.

  As shown in FIGS. 3 and 4, the lock plate 60 according to the present embodiment is a fall-off preventing member that prevents the slat 32 from falling off from the guide rails 20; 20, and slats at both widthwise ends of the slat 32. It is fixed to inclined part 32d; 32e extended toward the depth direction back from the upper end part and the lower end part of 32 main part 32a.

  The lock plate 60 is a plate made of, for example, a metal such as steel or stainless steel and formed thicker than the thickness of the slat 32. It is fixed. The lock plate 60 is formed in a predetermined shape by, for example, sheet metal processing such as pressing.

  FIG. 5 is a plan view of the lock plate 60. As shown in FIG. As shown in FIG. 5, the lock plate 60 extends in the width direction in a state where the lock plate 60 is superimposed on the main body 32 a of the slat 32, and the attachment portion 62 integrated with the slat 32 into welding by welding. It has a claw portion 64 which is bent toward the depth direction on the outer side in the width direction. The mounting portion 62 is provided with bent pieces 63 and 63 bent in the same direction on both sides extending along the slat 32. As shown in FIG. 5, the bending pieces 63, 63 are formed by being bent in the direction opposite to the bending direction of the claws 64. In the end faces 63a; 63a of the bent pieces 63; 63 along the extension direction of the slat 32, the indoor end edge 63A forming the end face 63a is positioned outward in the height direction than the outdoor end edge 63B. As it is inclined to the depth direction.

  FIG. 6A shows the relationship between the lock plate 60 and the slat 32. As shown in FIG. As shown in FIG. 6, the bending angle of the lock plate 60 is set so that the end 63A contacts the end 63B with respect to the inclined portion 32d and 32e of the slat 32. Be done. By forming the bent pieces 63; 63 in this manner, it is possible to minimize the gap generated between the slats 32 and the inclined portions 32d; 32e.

  For example, when the end edge 63B; 63B comes in contact with the inclined portion 32d; 32e of the slat 32 first, a welding wire is formed between the end face 63a; 63a of the bent piece 63; 63 and the inclined portion 32d; 32e of the slat 32; When the gap where the welding rod can not penetrate is generated, it depends on the skill of the operator for welding, or even if welding is successful, welding will be uneven, and sufficient strength is obtained in fixing the lock plate 60. There is a risk that it will not be possible. Therefore, as described above, by providing the bent pieces 63 in the mounting portion 62 such that the end 63A; 63A contacts the inclined portion 32d; 32e of the slat 32 earlier than the end 63B; 63B, The gap between the slat 32 and the lock plate 60 can be minimized. For example, even in consideration of the processing accuracy of the slat 32 and the lock plate 60, the gap between the upper and lower edges on the back surface and the slat 32 can be suppressed to about 0.1 to 0.2 mm.

  Thus, by controlling the gap between the slat 32 and the lock plate 60 to be welded, stable welding can be performed regardless of the welding worker's skill, and, for example, homogeneous welding can be performed. It is possible to use a welding robot to

  Therefore, in order to make it possible to use the welding robot, as shown in FIG. 5, an elongated hole 68 penetrating in the plate thickness direction is provided at the center of the mounting portion 62. When welding the lock plate 60 to the slat 32, the long hole 68 engages with a positioning jig J having a projection that can be inserted corresponding to the shape of the long hole 68, and locks the slat 32 relative to the slat 32. It functions as positioning means for positioning the plate 60 at a predetermined position.

  As shown in FIGS. 3 to 5, the claw portion 64 is formed in a trapezoidal shape which extends continuously with the attachment portion 62 via the bending portion and which is tapered toward the tip. The claw portion 64 is bent so as to be inclined outward in the width direction with respect to the attachment portion 62. As shown in FIG. 5C, it is desirable for the claw portion 64 to have, for example, an angle θ between the surface 64a and the surface 62a of the mounting portion 62 set to about 150 °. It is preferable to incline at least at an obtuse angle with respect to.

  As shown in FIG. 3, the slat 32 and the lock plate 60 do not normally contact the inner frame 23 and the opening and closing operation of the shutter curtain 30 is not impeded. On the other hand, as shown in FIG. 7, when the slat 32 moves in the width direction inner direction indicated by the arrow X1, the surface 64a of the claw portion 64 contacts the inner frame 23, and the slat 32 moves further in the width direction inward. Of the shutter curtain 30 from the guide rail 20 can be prevented.

FIG. 6 (b) is a view schematically showing the lock plate 60 welded to the slat 32. In the following description, it is assumed that the robot performs welding.
First, the lock plate 60 is placed at a predetermined position of the slat 32. Then, the robot arm to which the jig J is attached moves, inserts the protrusion of the jig J into the long hole 68 of the lock plate 60, and determines the position of the lock plate 60 with respect to the shutter curtain 30. Next, before the welding is started, the lock plate 60 is pressed toward the shutter curtain 30 by a predetermined amount via the jig J. When the lock plate 60 is pressed by the jig J, it is set to be orthogonal to the slat center line f of the slat 32 as shown by F in the figure. The pressing amount is set to, for example, about 1 mm in a direction orthogonal to the slat center line f from the position where the position of the lock plate 60 with respect to the slat 32 is determined. The slat center line f refers to the rotation center c1 (in the figure) of the first curled portion 32b and the second curled portion 32c of the slat 32 engaged with each other, the second curled portion 32c of the slat 32 and the first curled It refers to a straight line connecting the rotation center c2 with the portion 32b.

  Thus, even if the slat 32 to which the lock plate 60 is attached is deformed by pressing the lock plate 60 in the orthogonal direction with respect to the slat center line f via the jig J, the rotation centers c1 and c2 are: Since it moves on the slat center line f, it is possible to prevent changes in the engagement relationship and movable range of the slats 32 with each other. Then, the welding torch T attached to the robot arm is brought close to the welding spot between the slats 32 and the welding wire t is brought into contact between the edge 63 A of the locking plate 60 and the slat 32. By moving along the end edge 63A, the lock plate 60 can be automatically welded and fixed to the slat 32. By thus automating welding by a robot, welding unevenness is eliminated and a desired welding strength can be obtained, so that the action of the lock mechanism by the lock plate 60 can be stabilized. Can stabilize the drop-off prevention performance.

  FIG. 8 is a view showing another form of the lock plate 60. As shown in FIG. FIG. 9 is a schematic view of a welding operation of the lock plate 60. As shown in FIG. The lock plate 60 described above is formed such that the end face 63a of the bent piece 63; 63 contacts the inclined part 32d; 32e of the slat 32 earlier than the end edge 63B, but in FIG. As shown, the lock plate 60 may be formed. That is, as shown in FIG. 8B, the bending pieces 63; 63 are bent to the same side as the bending of the claw portion 64 with respect to the mounting portion 62. In this case, the end 63B of each of the bent pieces 63; 63 is formed in contact with the inclined portion 32d; 32e of the slat 32 prior to the end 63A.

  When the bending pieces 63; 63 are formed as described above, as shown in FIG. 8C, the end faces 63a; 63a and the inclined portions 32d; A V-shaped gap is formed between the two. As shown in FIG. 9, this V-shaped clearance enables penetration of welding members such as welding wire t and welding rod, so the end face 63a; 63a and the inclined part 32d; 32e of the slat 32 are stabilized. Can be welded.

  FIG. 10 is a view showing another form of the lock plate 60. As shown in FIG. For example, the opposing surface 62 b of the mounting portion 62 facing the slat 32 may interfere with the recess 32 m of the main portion 32 a of the slat 32. In such a case, a U-shaped cut extending outward from the end face 62c located inward in the width direction so as to avoid contact with the recess 32m instead of the long hole 68 provided as the positioning means It suffices to form a notch.

  FIG. 11 is a view showing another form of the lock plate 60. As shown in FIG. In each of the above-described examples, the bent pieces 63; 63 are formed on the lock plate 60 to set the welding portion between the lock plate 60 and the slat 32. However, as shown in FIG. The mounting portion 62 as it is may be directly welded to the slat 32 without providing 63; 63. In this case, in the cross-sectional view orthogonal to the extension direction of the slat 32, the end face 63a; 63a of the mounting part 62 is in contact with the inclined part 32d; 32e prior to the end 63A; 63A before the end 63B; It is formed in a trapezoidal shape. That is, the end 63A on the side of the slat 32 that forms the end face 63a; 63a of the flat attachment part 62; 63B on the opposite side before the end 63B contacts the inclined part 32d; Thus, the gap with respect to the slat 32 can be controlled. Such processing of the end face 63a; 63a can be performed with high accuracy by using, for example, crushing. Then, as shown in FIG. 12, the lock plate 60 can be firmly fixed to the slat 32 by welding along the edge 63A; 63A in contact with the inclined portion 32d; 32e of the slat 32. The 30 guide rails 20; 20 can be prevented from falling off. In addition, by providing the long hole 68 in the mounting portion 62, automation of welding by the robot can be achieved.

  FIG. 13 is a view showing another form of the lock plate 60. As shown in FIG. The lock plate 60 shown in FIG. 13 includes a bent piece 63u; 63u bent in the same direction as the claw portion 64 in the mounting portion 62; a bent piece 63d; 63d bent in the opposite direction to the claw portion 64; Equipped with The bent pieces 63u and 63u are formed on the claw portion 64 side of the attachment portion 62, and the bent pieces 63d and 63d are formed inward in the width direction of the bent pieces 63u and 63u. By providing the bent pieces 63u; 63u; 63d; 63d in this manner, one lock plate 60 can be attached to the slat 32 in the reverse direction of the claw portion 64. For example, as a method of welding to the slat 32, as shown in FIG. 6 (b), it is desirable to contact the edge 63A; 63A with the slat 32 for welding, but the direction of the claw 64 is in the depth direction indoor side or outdoor side If it is desired to face, it is necessary to prepare two types of lock plates 60 shown in FIGS. 5 and 8.

  Therefore, as shown in FIG. 13, the lock plate 60 can be shared by providing the bent pieces 63 u and 63 u and the bent pieces 63 d and 63 d which are bent in opposite directions to one lock plate 60. That is, as shown in FIG. 14A, when the claw portion 64 is fixed to the slat 32 toward the indoor side in the depth direction, the bent pieces 63u and 63u positioned on the inner side in the width direction are welded to each other. When the claw portion 64 is fixed to the slat 32 with the claw portion 64 facing outward in the depth direction as shown in FIG. 14 (b), the bent pieces 63d and 63d and the slats positioned on the width direction outer side (claw portion 64 side) You can weld it with 32.

  In the description so far, the cross-sectional view has been described using a shape in which the central portion is gradually recessed concavely toward the indoor side in the depth direction of the slat 32, but as shown in FIG. The main body portion 32a can also be applied to a slat having a shape in which a central portion gently bulges in a convex shape toward the rear in the depth direction. Generally speaking, FIG. 15 (a) shows the lock plate 60 formed as shown in FIG. 5 with the claw portion 64 facing the indoor side in the depth direction, and the edge 63A of the bent piece 63; What is made to weld between inclined part 32d; 32e is shown. 15B shows the lock plate 60 formed as shown in FIG. 5 with the claw portion 64 facing the outdoor side in the depth direction, an end face 63a of the bent piece 63; 63a; and an inclined portion 32d of the slat 32; What is made to weld the edge 63B; 63B side from between 32e is shown. In FIG. 15C, the lock plate 60 formed as shown in FIG. 8 is directed to the indoor side in the depth direction with the lock portion 60, the end face 63a of the bent piece 63; 63a and the inclined portion 32d of the slat 32; What is made to weld the edge 63B; 63B side from between 32e is shown. FIG. 15D shows the lock plate 60 formed as shown in FIG. 8 with the claws 64 facing outward in the depth direction, and the edge 63A of the bent piece 63; 63A and the inclined portion 32d of the slat 32 And 32e are shown to be welded to each other. Further, FIG. 15 (e) shows the lock plate 60 formed as shown in FIG. 11 with the claw portion 64 facing the indoor side, and the inclination of the slat 32 with the edge 63A of the bent piece 63; 63A. The portion between 32d and 32e is welded.

  FIG. 16 is a view showing another form of the lock plate 60. As shown in FIG. FIG. 17 shows the end of the slat 32. As shown in FIG. The slat 32 shown in FIG. 17 has a shape in which the central portion of the main body 32a gently bulges in a convex shape toward the rear in the depth direction, and another form of the lock plate 60 using the slat 32 will be described hereinafter. Will be explained. As in the case of the slat 32 shown in FIG. 16, when the main body portion 32a is gently curved in a convex shape, the length dimension of the mounting portion 62 in the height direction is set narrower than the width of the inclined portions 32d and 32e. By doing this, as shown in FIG. 5 and FIG. 8, the bending pieces 63; 63 are formed in the mounting portion 62, or the mounting portion 62 is flat as shown in FIG. The end edge 62B on the slat 32 side of the attachment portion 62; 62B can be brought into direct contact with the back surface of the main portion 32a of the slat 32 without crushing. That is, as shown in FIG. 15, the mounting portion 62 of the lock plate 60 can be welded to the back surface of the main portion 32 a of the slat 32 without fixing the lock plate 60 to the inclined portion 32 d; 32 e of the slat 32. In the following description, the lock plate 60 is described as being fixed to the main body 32 a of the slat 32.

As shown in FIG. 17, the lock plate 60 is provided with stoppers (shift preventing means) 65 for preventing positional deviation of the slats connected via the first and second curled portions 32b and 32c in the width direction. 65 is provided integrally with the claw portion 64.
The stoppers 65 and 65 are formed integrally with the lock plate 60 together with the claws 64 and the mounting portion 62 and the like. Specifically, it is provided so as to form a pair of upper and lower portions in the height direction from between the claw portion 64 and the mounting portion 62, and has a wing shape projecting slightly inward in the depth direction. Be done.
In the stopper portions 65 and 65, the trailing edges of the upper and lower stopper portions 65 and 65 are in degree contact with the end edges of the upper and lower first and second curled portions 32b and 32c when the slats 32 are engaged with each other. The slats 32 connected to each other are fixed in a positioned state, and the shift is prevented.

In the bent portions 66 and 66 of the stopper portions 65 and 65 bent so as to be inclined with respect to the mounting portion 62, concave portions 67 and 67 which are recessed from the slat 32 side to the width direction outer side (the claw direction) are formed. ing. Since the stopper portions 65; 65 are positioned to contact the side end faces of the first and second curled portions 32b; 32c which are the connecting portions of the slats 32 as described above, for example, when assembling the shutter curtain, In order to adjust the length of the slat curtain according to the vertical length of the opening of the object, work may be performed on the site to remove and insert the slats 32 and to prevent them from coming off, and the stopper portions 65 and 65 are bent back . The end face of the stopper portion 65; 65 on the slat 32 side has a slight gap which allows rotation of the slat 32; 32 relative to the end face of the slat 32, so bending back of the stopper portion 65; If this is done, the bent portions 66 and 66 will bulge and interfere with the end of the slat 32. For this reason, conventionally, when the stopper portion 65; 65 is bent back, extra repair work such as scraping off the bulge of the bent portion 66; 66 occurs, but the width dimension of the bent portion 66; By providing the concave portions 67; 67 on the slat 32 side so as to be thin, it is unnecessary to perform an extra repair operation such as scraping the bulge. In addition, the force required for bending back is reduced, and the workability can be improved.
Since such a lock plate 60 can be prevented from being displaced in the width direction of the slat 32 by providing every other slat 32 constituting the shutter curtain 30 as shown in FIG. Accordingly, even if the force for moving the slat 32 in the width direction inward acts, the claws 64 uniformly engage with the guide rails 20; 20, and the shutter curtain 30 drops out from the guide rails 20; Preventive performance can be stabilized.

FIG. 19 is a view showing a slip prevention plate 80 in which the slip prevention means of the slat 32 is separated from the lock plate 60 shown in FIG.
As shown in FIG. 19, the anti-slip plate 80 generally forms a metal plate thicker than the thickness of the slat 32 in a substantially T shape as a whole with the claws 64 removed from the lock plate 60 shown in FIG. It is formed. The anti-slip plate 80 is a flat-plate rectangular fixed portion 82 and a blade projecting inward in the depth direction so as to form a pair from the width-direction outer end of the fixed portion 82 vertically in the height direction. And a stopper portion 85; 85 having a mold shape.
Similar to the lock plate 60, the fixing portion 82 is formed with an elongated hole 88, which enables welding to the slat 32 by a robot using a jig J. In the bent portions 86 and 86 of the stopper portions 85 and 85 bent so as to be inclined with respect to the fixing portion 82, concave portions 87 and 87 are formed which are recessed from the slat 32 side to the width direction outer side (claw direction). ing. In addition, about the recessed part 87, the effect similar to the recessed part 67 of the lock plate 60 shown in FIG. 16 can be acquired.
As shown in FIG. 20, the anti-slip plate 80 is provided alternately with the lock plate 60 as shown in FIGS. 5, 8 and 11 in the shutter curtain 30 so that the shutter curtain 30 drops out of the guard rail 20; It contributes to the stability of the drop prevention performance.

FIG. 21 is a schematic front view of a pipe shutter 110 as an example of the shutter device according to the present invention, and FIG. 22 is a view showing an end structure of the pipe shutter 110.
The pipe shutter 110 is installed at an opening 112 formed in the structure casing 111. The structure body 111 is, for example, an outer wall that divides the inside or outside of a structure such as a house, a building, a warehouse, or a factory, or an inner wall that divides an internal space inside the structure. The opening 112 is formed in the structure casing 111 and is formed as a space communicating inside and outside.

The pipe shutter 110 is generally wound or fed out along a direction of extension of the guide rail 113 and a pair of guide rails 113; 113 spaced apart from each other on both sides of the opening 112 in the width (opening) direction. A pipe curtain 130 for opening and closing the opening 112, and a winding mechanism 150 installed in a storage space in the shutter case 114 provided above the opening 112 and the guide rail 113; 113 are provided.
In the present specification, the “width (frontage) direction” is a direction orthogonal to the opening and closing direction of the pipe curtain 130 and means a direction different from the thickness (depth) direction of the pipe curtain 130.

As shown in FIGS. 21 and 22, the guide rails 113; 113 are erected with respect to the structure casing 111 in a state in which a part of the guide rails 113 is embedded in the structure casing 111 such that the longitudinal direction is perpendicular.
As shown in FIG. 22, the guide rail 113 includes a guide frame 160 for guiding the movement of the pipe curtain 130 and a stopper frame 170 for preventing the pipe curtain 130 from falling out of the opening of the guide frame 160.
The guide frame 160 includes a guide portion 160a formed in a U-shape in cross section at one opening, and a rod fixing portion 160b; 160c bent in a reverse direction at right angles from each opening end. With the guide frames 160 and 160 facing each other with the openings 161 and 161 facing each other and the guide portions 160a and 160a being embedded in the casing 111, the casing fixing portions 160b and 160c are fixed to the end face of the casing 111.
The stopper frames 170; 170 are formed in symmetrical shapes with the pipe curtain 130 interposed therebetween. Each stopper frame 170 is bent at a substantially right angle along the depth direction and the width direction, and is bent at a right angle from the folded portion 170a along the rod fixing portions 160b and 160c of the guide frame 160. And a locking portion 170c bent at a right angle from the extending portion 170b and extending outward in the width direction of the guide frame 160.

As shown in FIG. 21, the pipe curtain 130 is assembled in a grid shape in a front view by a plurality of pipe bodies 131 and a link mechanism 132 connecting the plurality of pipe bodies 131 to each other.
The plurality of link mechanisms 132 are constituted by a plurality of plates connected to each other in a direction orthogonal to the longitudinal direction of the pipe body 131. A circular hole through which the pipe body 131 can be inserted is formed on both end sides of each plate, and a connection mechanism for rotatably connecting the plates is provided, and a plurality of pipes connected by the link mechanism 132 The body 131 is rotatably connected so as to be able to be taken up.

As shown in FIG. 22, retaining pieces 135 are provided at each end of the pipe body 131 connected to one another by a plurality of link mechanisms 132. The retaining piece 135 is a cylinder formed in an annular shape through which the pipe body 131 can be inserted, and is formed of a hard synthetic resin.
The outer diameter D1 of the retaining piece 135 is set larger than the outer diameter D2 of the pipe body 31 and larger than the width dimension W1 between the lock portions 170c of the pair of stopper frames 170 and 170c.
In other words, by setting the width dimension W1 between the lock portions 170c and 170c so as to be narrower than the outer diameter D1 of the retaining piece 135 and wider than the outer diameter D2 of the pipe body 31, the pipe curtain 130 Can be prevented from coming off the guide rail 113.

  Therefore, in maintenance and replacement work of the pipe curtain 130, the pipe body 131 can be easily removed from the guide rail 113; 113 by removing the stopper frame 170; 170 constituting the guide rail 113 from the guide frame 160. Become.

Hereinafter, the winding mechanism 150 of the pipe shutter 110 will be outlined.
As shown in FIG. 21, the winding mechanism 150 is a mechanism installed in the shutter case 114. The winding mechanism 150 generally includes: left and right brackets 115; 115 constituting a part of the shutter case 114; a shaft 151 bridged between the left and right brackets 115; 115; A wheel 152 rotatable in the delivery direction and a coil spring 153 wound around a shaft 151 are provided.

The shaft 151 is a column extending in the width direction of the opening 112 (longitudinal direction of the pipe curtain 130), and both ends thereof are non-rotatably fixed to the brackets 115 and 115 by fixing means such as bolts.
The wheel 152 is a cylindrical metal member provided at a predetermined distance from the shaft 151. The wheel 152 is fitted to the shaft 151 via a not-shown insertion hole opened at the center, and freely rotates around the shaft 151 as a rotation center. Also, the wheels 152 and 152 are connected by a plurality of winding members 154.

  The winding member 154 is a support column extending in parallel with the shaft 151, and both ends thereof are fitted in connection holes (not shown) provided at equal intervals in the circumferential direction around the fitting insertion hole of the wheel 152. 152 are connected to each other by the winding member 154 so that both wheels 152; 152 rotate around the shaft 151 in synchronization with each other. In addition, the upper end of the pipe curtain 130 is fastened to the outer periphery of the winding member 154 by fastening means such as a bolt and a nut via a hanging source member (not shown). Thus, when the wheel 152 rotates in the winding direction from the state where the pipe curtain 130 closes the opening 112, the pipe curtain 130 is wound along the wheel 152 and the winding member 154.

The coil spring 153 is a biasing member interposed around the axis of the shaft 151, and is connected to the fixedly provided shaft 151 and the wheel 152 rotatably fitted to the shaft 151. One end of the coil spring 153 is fastened to a fastening hole formed in the shaft 151 by fastening means such as a bolt and a nut. Further, the other end of the coil spring 153 is fixed to a fastening hole formed on the surface of the wheel 152 by fixing means such as a bolt and a nut as described above.
Since the shaft 151 and the wheel 152 are connected by the coil spring 153, the coil spring 153 has a reaction force in the direction of opening the opening 112 in a state where the pipe curtain 130 is fed out in the direction of closing the opening 112. As a result, the pipe curtain 130 can be wound up with a slight force when opening the opening 112.

  As mentioned above, although the present invention was explained based on an embodiment, the technical scope of the present invention is not limited at all to the above-mentioned embodiment, and various changes and improvement can be performed combining the embodiments. It is clear in the trader. It is also apparent from the scope of the claims that the embodiments added with such various changes and improvements can be included in the technical scope of the present invention.

10 shutter device, 14 openings, 16 shutter cases,
20 guide rails, 30 shutter curtains, 32 slats, 40 locking mechanisms,
60 lock plate, 62 mounting part, 64 claw part, 70 winding mechanism.

Claims (5)

Guide rails provided facing each other between the openings;
An opening / closing body provided movable along the guide rail;
An anti-falling member provided on a slat constituting the opening and closing body, for preventing the opening and closing body from falling off the guide rail within the guide rail;
A shutter device provided with
The fall prevention member is
An attaching portion attached to a widthwise end of the slat;
A claw that is continuous to the width direction outer side of the mounting portion and is bent in the guide rail;
Equipped with
The attachment portion has an end face that faces an inclined portion that inclines in the depth direction from the upper and lower end portions of the main body portion of the slat, and extends along the width direction of the slat,
A shutter device characterized in that an edge of the end face extending along the width direction of the slat is in contact with the inclined portion.   The shutter device according to claim 1, wherein the attachment portion includes a through hole penetrating in a thickness direction. Guide rails provided facing each other between the openings;
An opening / closing body provided movably along the guide rail, and configured by rotatably connecting a plurality of slats;
A displacement prevention member provided in the guide rail, for preventing displacement of the slats in the width direction;
A shutter device provided with
The displacement prevention member is
An attachment portion which is provided so as to project outward beyond the widthwise edge of the slat, and is attached to the widthwise end of the slat;
And a pair of stopper portions extending obliquely with respect to the mounting portion in the vertical direction so as to contact the upper and lower connecting portion end faces from the mounting portion protruding outward beyond the width direction edge of the slat,
The shutter device according to the present invention, further comprising: a concave portion recessed outward in the width direction on the slat side of the bending portion at which the stopper portion starts to incline with respect to the mounting portion. Guide rails provided facing each other between the openings;
An opening / closing body provided movable along the guide rail;
An anti-falling member provided in the guide rail and preventing the opening and closing body from falling off the guide rail;
The guide rail forms a space for receiving the end of the opening and closing body, and an outer frame provided on the inner side in the width direction of the opening and closing body, and an inner frame provided on the outer side in the width direction of the opening and closing body.
A shutter device provided with
The outer frame and the inner frame respectively have a pair of plate pieces facing the front surface and the rear surface on the end side of the opening and closing body and having opposing surfaces extending in parallel to the front surface and the rear surface,
A shutter device characterized in that the facing surface of the plate piece of the outer frame and the facing surface of the plate piece of the inner frame are flush with each other. Guide rails provided facing each other between the openings;
An opening / closing body provided movable along the guide rail;
A plurality of pipe bodies connected along the opening and closing direction of the opening and closing body;
A retaining member, wherein the pipe body is attached to a pipe body provided in a guide rail;
A shutter device provided with
The guide rails are
A shutter apparatus comprising: a pair of stopper frames forming an opening having a width smaller than the outer diameter of the retaining member on the entry side of the pipe body.

Images