JP6983610B2 - Shutter device - Google Patents

Description

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

Conventionally, it is known that a shutter device is provided with a lock mechanism for preventing the shutter curtain that opens and closes the frontage from falling off (falling off) from the 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 slats constituting the shutter curtain and locking it to the guide rail.

Japanese Unexamined Patent Publication No. 2011-149191

However, there is a problem that sufficient wind resistance cannot be obtained depending on the mounting state of the retaining member on the slats 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 problems.

As a shutter device for solving the above problems, a guide rail disposed opposite each other in between the openings, and the opening and closing member which is movable along said guide rail, provided in the guide rail is a stopper member for preventing the falling off of the closing body from said guide rail, said guide rail, forms a space for accommodating an end portion of the closing member, the outer frame provided inward in the width direction of the opening and closing member A shutter device including an inner frame provided outside in the width direction of the opening / closing body, wherein the outer frame and the inner frame face the front surface and the rear surface on the end side of the opening / closing body, and the front surface and the inner frame are opposed to each other. Each of the pair of plate pieces having a facing surface extending in parallel with the rear surface 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 becomes smaller, so that the amount of engagement of the falling-off prevention member with the guide rail becomes larger, and the opening / closing body becomes larger. Can be more reliably prevented from falling off the guide rail.
Further, as another configuration of the shutter device, the fall-off prevention member is continuous with a mounting portion attached to the widthwise end portion of the slat and a claw bent in the guide rail so as to be continuous with the outside of the mounting portion in the width direction. The mounting portion comprises an portion and an end face that faces an inclined portion inclined in the depth direction from the upper and lower ends of the main body portion of the slats and extends along the width direction of the slats. The end face extending along the width direction of the slats was attached in contact with the inclined portion.
According to this configuration, when the fall prevention member is attached to the slats by welding, a gap suitable for welding can be formed between the fall prevention member and the slats, so that when the opening / closing body swings in the width direction due to wind pressure or the like. Even if the claw portion of the fall prevention member comes into contact with the guide rail, the fall prevention member is firmly fixed to the slat, so that the fall prevention member can be prevented from coming off the slat. As a result, the opening / closing body can be prevented from falling off from the guide rail.
Further, as another configuration of the shutter device, the mounting portion is configured to have a through hole penetrating in the plate thickness direction.
According to this configuration, when fixing the fall prevention member to the slats, the position of the fall prevention member with respect to the slats can be stably positioned by inserting a jig into the through hole.
Further, as another configuration of the shutter device, a misalignment prevention member provided in the guide rail to prevent misalignment of the slats in the width direction is provided, and the misalignment prevention member is provided in the width direction of the slats. Upper and lower connecting portion end faces from a mounting portion provided so as to project outward from the edge and attached to the widthwise end of the slat and the mounting portion protruding outward from the widthwise edge of the slat. A pair of stopper portions that are inclined and extended with respect to the mounting portion are provided in the vertical direction so as to be in contact with the mounting portion, and the width of the stopper portion is on the slat side of the bent portion that starts tilting with respect to the mounting portion. The configuration is provided with a recess that is recessed on the outside in the direction.
According to this configuration, when assembling the opening / closing body or when adjusting the length of the slats according to the vertical length of the opening of the building, when inserting / removing the slats and performing the work of preventing the slats from coming off, the stopper portion Bending back is performed, but since the bulge that occurs in the bent part due to the bending back of the stopper part occurs in the concave part, extra repair work such as scraping off the bulge is not required, and the force required for bending back is increased. It becomes smaller and enables accurate work. As a result, since the slats are reliably positioned with each other, it is possible to prevent the opening / closing body from falling off from the guide rail even if the opening / closing body swings in the width direction due to wind pressure or the like.
Further, as another configuration of the shutter device, the guide rail includes a receiving frame fixed to the skeleton and an intermediate frame, the inner frame is fixed to the receiving frame via the intermediate frame, and the outer frame is the receiving frame. And the structure is fixed to the inner frame via the support frame.
Further, as another configuration of the shutter device, the length dimension of the plate piece of the outer frame in the depth direction and the length dimension of the plate piece of the inner frame in the depth direction are set to be the same. did.
The outline of the above invention does not list all the necessary features of the present invention, and a subcombination of these feature groups can also be an invention.

It is a schematic front view of a shutter device. It is a vertical sectional view of a shutter curtain and a winding mechanism. It is a cross-sectional view of a guide rail and a lock mechanism. It is a perspective view of the slat end portion. It is a top view of the lock plate. It is a figure which shows the relationship of the lock plate with respect to a slats. It is a figure which shows the operation of the lock mechanism. It is a figure which shows the other form of a lock plate. It is a figure which shows the welding work. 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 the welding work. It is a figure which shows the other form of a lock plate. It is a perspective view of the slat end portion. It is a figure which shows the other form of a slats. It is a figure which shows the other form of a lock plate. It is a perspective view of the slat end portion. 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 another shutter device. It is a figure which shows the lock mechanism in other shutter devices.

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

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

The shutter device 10 is movable along the longitudinal direction of the guide rails 20; 20 and the guide rails 20; 20 which are erected on both sides of the opening 14 in the width direction so as to be separated from each other, and the opening 14 is opened. Alternatively, the shutter curtain 30 as an opening / closing body to be closed, the shutter case 16 provided above the opening 14 and the guide rail 20; 20, and the winding mechanism 70 installed in the accommodation space inside the shutter case 16 are provided. ..

In the present specification, the "width direction" indicates a direction (horizontal direction) orthogonal to the opening / closing (up / down) direction of the shutter curtain 30, and the "depth direction" is the thickness (front, rear) of the shutter curtain 30. Means direction. Further, the "winding direction" indicates a direction in which the shutter curtain 30 rises along the guide rail 20; 20 and the opening 14 opens, and the "feeding direction" means a direction in which the shutter curtain 30 rises along the guide rail 20; 20; It shall descend along 20 and indicate the direction in which the opening 14 closes.

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

As shown in FIG. 3, the guide rail 20 includes a receiving frame 21 fixed to the opening 14 of the skeleton 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; 25.

The receiving frame 21 is formed in a U shape having a substrate 21a provided along the end surface of the skeleton 12 and a pair of side plates 21b; 21c bent at right angles in the same direction from the substrate 21a toward the outside in the width direction. , The substrate 21a is provided along the opening 14 of the skeleton 12, and is fixed so as to sandwich the skeleton 12 by the side plates 21b; 21c.

The intermediate frame 22 is provided on the center side in the depth direction of the substrate 21a. The intermediate frame 22 includes a receiving frame mounting plate 22a that extends along the substrate 21a and is fixed to the substrate 21a, and a pillar plate 22b that is bent at a right angle from the receiving frame mounting plate 22a and extends toward the opening side in the width direction. It is provided with an outer frame mounting plate 22c that is bent at a right angle from the pillar plate 22b in the opposite direction to the receiving frame mounting plate 22a and to which the outer frame 27 is mounted.

The inner frame 23 is formed by being bent at a right angle a plurality of times in the depth direction and the width direction so as to have an opening 29 into which the end portion of the shutter curtain 30 can be inserted in a cross-sectional view, and the shutter curtain 30 is internally formed. It forms a part of the guide region R which is a space where the lock plate 60 provided on the slat 32 constituting the shutter curtain 30 and the outer end portion in the width direction of the shutter curtain 30 moves.
The space formed by the inner frame 23 is a space in which the length dimension in the depth direction on the opening 29 side is slightly wider than the thickness of the slat 32, and the opening is such that the depth side projects to the indoor side in the depth direction. It is formed so as 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 in the depth direction indoor side at a right angle from the guide plate 23a, and an opening side in the width direction at a right angle from the back plate 23b. From the wall plate 23c, which is bent toward and extends parallel to the guide plate 23a, and from the wall plate 23c, which is bent at a right angle from the wall plate 23c to the outdoor side in the depth direction and extends parallel to the back plate 23b. It is bent toward the opening side in the width direction at a right angle, and is formed so as to have a guide plate 23a extending in parallel with the guide plate 23a.

The guide plate 23a located on the outdoor side in the depth direction has a length dimension in the width direction set to be shorter than the pillar plate 22b of the intermediate frame 22, and the depth plate 23b continuous with the guide plate 23a is in the depth direction. The length dimension is set to substantially the same length dimension as the receiving frame mounting plate 22a of the intermediate frame 22. The inner frame 23 is fixed so that the guide plate 23a is in close contact with the pillar plate 22b of the intermediate frame 22 and the back plate 23b is in close contact with the receiving frame mounting plate 22a of the intermediate frame 22. Further, the guide plate 23e located on the indoor side in the depth direction is set to have a length dimension in the width direction shorter than that 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 extending continuously in the width direction are formed. The wall plate 23c continuous with the back plate 23b forms a space that allows the lock plate 60 to move. In this embodiment, the dimensions of the guide plate 23a and the guide plate 23e are set so as to be located 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 that is recessed at a right angle by the outer circumferences of the guide plate 23e and the wall plate 23d of the inner frame 23. Specifically, a pillar plate 24a that 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 extends along the guide plate 23e and a pillar that extends along the wall plate 23d. The plate 24b, the folded piece 24c formed by bending at a right angle from the pillar plate 24a toward the indoor side in the depth direction, and the bent piece 24c formed by bending at a right angle from the pillar plate 24b toward the opening side in the width direction. It is formed to have a piece 24d.

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

The outer frames 26; 27 are formed in a symmetrical shape with the shutter curtain 30 interposed therebetween. The outer frame 26 is formed by bending the decorative plate 26a extending along the side plate 21b of the receiving frame 21 and the bent piece 24d of the support frame 24 at a right angle from the decorative plate 26a toward the outdoor side in the depth direction, and forming the support frame 24. A decorative plate 26b extending along the bent piece 24c and a guide plate 26c formed by bending at a right angle from the decorative plate 26b toward the skeleton side in the width direction and extending toward the inner frame 23 along the pillar plate 24a. Have. The outer frame 27 has a 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 bent at a right angle from the decorative plate 27a toward the indoor side in the depth direction. It has a decorative plate 27b extending along the outer frame and a guide plate 27c bent at a right angle along the outer frame mounting plate 22c and the pillar plate 22b.

In the outer frame 26; 27, the end of the guide plate 26c is in contact 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, together with the guide plate 26c; 27c and the inner frame 23, constitutes a guide region R that guides the movement of the shutter curtain 30.
Further, the guide rail so 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 with each other, and the surface 27z of the guide plate 27c and the surface 23y of the guide plate 23a of the inner frame 23 are flush with each other. The thickness of the plate material of the receiving frame 21, the intermediate frame 22, the inner frame 23, the support frame 24; 25, and the outer frame 26; 27 constituting the 20 and the length dimension of each part are set.

That is, the guide surface formed on the indoor 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, and the guide plate 27c of the outer frame 27 and the guide plate of the inner frame 23. The surface 27z and the surface 23y of the 23a are set so as to be parallel to the guide surface formed on the outdoor side in the depth direction.

The length dimension in the depth direction of the entrance side space formed by the guide plates 26c; 27c of the outer frame 26; 27 and the length dimension in the depth direction of the depth side space formed by the guide plates 23a; 23e of the inner frame 23. As shown in FIG. 7, when the pulling force in the width direction and the inward direction indicated by the arrow X1 in the figure is generated for the slats 32 due to the wind pressure or the like applied to the entire shutter curtain 30, the lock plate is set to the same. 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 plates 26c; 27d of the outer frame 26; 27 is the length in the depth direction of the depth side space formed by the guide plates 23a; 23e of the inner frame 23. When it is larger or smaller than the dimension, the inclination of the slat 32 becomes large and the amount applied to the inner frame 23 of the lock plate 60 becomes small, and the guide rails 20; 20 are configured as shown in FIG. However, according to the present embodiment, the amount of the lock plate 60 applied to the guide rails 20; 20 is increased, although the ability to prevent the shutter curtain 30 from falling off from the guide rails 20; 20 is reduced as compared with the case where the guide rails 20; 20 are used. Can be done.

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, for example, a plate made of steel, stainless steel, aluminum, or the like, extends along the width direction of the opening 14, and has both ends swallowed by the guide region R. Guided by 20; 20.

As shown in FIG. 4, the slats 32 have a main body portion 32a whose central portion is gently recessed in a concave shape toward the rear in the depth direction, and an upper end portion of the main body portion 32a, which is continuous with the upper end portion toward the front. It has a first curl portion 32b that extends while curving, and a second curl portion 32c that extends forward while being continuous with the lower end portion at the lower end portion of the main body portion 32a.

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

Hereinafter, the lock mechanism 40 provided in the shutter device 10 will be described. As shown in FIGS. 3 and 4, the lock mechanism 40 is composed of an inner frame 23 of the guide rail 20 and a lock plate 60 disposed at each end of the slat 32 on the outer side in the width direction.

As shown in FIGS. 3 and 4, the lock plate 60 according to the present embodiment is a dropout prevention member that prevents the slat 32 from falling off from the guide rail 20; It is fixed to the inclined portion 32d; 32e extending from the upper end portion and the lower end portion of the main body portion 32a of the 32 toward the rear in the depth direction.

The lock plate 60 is a plate made of a metal such as steel or stainless steel and formed thicker than the plate thickness of the slat 32, and is firmly welded to both ends of the slat 32 in the width direction by a welding robot. It is fixed. The lock plate 60 is formed into 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. 5, the lock plate 60 extends in the width direction in a state of being overlapped with the main body portion 32a of the slat 32, and is integrated into the slat 32 by welding. It has a claw portion 64 formed by being bent in the depth direction on the outer side in the width direction. The mounting portion 62 includes bent pieces 63; 63 bent in the same direction on both sides extending along the slats 32. As shown in FIG. 5, the bent pieces 63; 63 are formed by being bent in the direction opposite to the bending direction of the claw portion 64. In the end faces 63a; 63a along the extension direction of the slat 32 of the bent piece 63; 63, the indoor end edge 63A forming the end face 63a is located outside in the height direction with respect to the outdoor end edge 63B, respectively. It is inclined with respect to the depth direction.

FIG. 6A is a diagram showing the relationship between the lock plate 60 and the slats 32. As shown in FIG. 6, the bending angle of the bent piece 63; 63 of the lock plate 60 is set so that the end edge 63A comes into contact with the inclined portion 32d; 32e of the slats 32 before the end edge 63B. Will be done. By forming the bent pieces 63; 63 in this way, 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 first contacts the inclined portion 32d; 32e of the slat 32, the welding wire is formed between the end surface 63a; 63a of the bent piece 63; 63 and the inclined portion 32d; 32e of the slat 32. If there is a gap that the welding rod cannot enter, the welding will depend on the skill of the operator, or even if the welding is successful, the welding will be uneven, and sufficient strength will be obtained when fixing the lock plate 60. There is a risk that it will not be possible. Therefore, as described above, the bent piece 63 is provided in the mounting portion 62 so that the edge 63A; 63A comes into contact with the inclined portion 32d; 32e of the slats 32 before the edge 63B; 63B. The gap created between the slats 32 and the lock plate 60 can be minimized. For example, even if the processing accuracy of the slat 32 and the lock plate 60 is taken into consideration, the gap between the upper and lower edge edges of the back surface and the slat 32 can be suppressed to about 0.1 to 0.2 mm.

By controlling the gap between the slat 32 to be welded and the lock plate 60 in this way, stable welding can be performed regardless of the skill of the welding operator, and for example, uniform welding is possible. Welding robots can be used.

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

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

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

FIG. 6B is a diagram schematically showing a state when the lock plate 60 is welded to the slats 32. In the following description, it is assumed that welding is performed by a robot.
First, the lock plate 60 is placed at a predetermined position on the slats 32. Then, the robot arm to which the jig J is attached moves, inserts the protrusion of the jig J into the elongated 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 starting welding, 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 so as 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 the 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 fixed. The slat center line f is the rotation center c1 (in the figure) of the first curl portion 32b and the second curl portion 32c of the slat 32 that engage with each other, and the second curl portion 32c and the first curl of the slat 32. A straight line connecting the rotation center c2 with the portion 32b.

In this way, by pressing the lock plate 60 in the direction orthogonal to the slat center line f via the jig J, even if the slat 32 to which the lock plate 60 is attached is deformed, the rotation center c1; c2 becomes. Since it moves on the slat center line f, it is possible to prevent changes in the engagement relationship between the slat 32s and the movable range. Then, the welding tonch T attached to the robot arm is brought close to the lock plate 60, which is the welding point, between the slats 32, and the welding wire t is brought into contact between the end edge 63A of the lock plate 60 and the slats 32. By moving along the edge 63A, the lock plate 60 can be automatically welded and fixed to the slats 32. By automating the welding by the robot in this way, the welding unevenness is eliminated and the desired welding strength can be obtained. Therefore, the action of the locking mechanism by the lock plate 60 can be stabilized, and the guide rail 20; 20 to the shutter curtain 30 can be obtained. Can stabilize the dropout prevention performance.

FIG. 8 is a diagram showing another form of the lock plate 60. FIG. 9 is a schematic view of the welding work of the lock plate 60. The above-mentioned lock plate 60 is formed so that the end surface 63a of the bent piece 63; 63 is in contact with the inclined portion 32d; 32e of the slats 32 so that the end edge 63A is in contact with the end edge 63B before the end edge 63B. As shown, the lock plate 60 may be formed. That is, as shown in FIG. 8B, the bent piece 63; 63 is bent and formed with respect to the mounting portion 62 toward the same side as the bending of the claw portion 64. In this case, the edge 63B of each bent piece 63; 63 is formed so as to be in contact with the inclined portion 32d; 32e of the slats 32 before the edge 63A.

When the bent piece 63; 63 is formed in this way, as shown in FIG. 8C, the end face 63a; 63a and the inclined portion 32d; 32e are in contact with the slat 32 in a cross-sectional view. A V-shaped opening gap is formed between them. As shown in FIG. 9, this V-shaped gap allows welding members such as welding wires t and welding rods to enter, so that the end faces 63a; 63a and the inclined portions 32d; 32e of the slats 32 are stabilized. Can be welded.

FIG. 10 is a diagram showing another form of the lock plate 60. For example, the facing surface 62b of the mounting portion 62 facing the slat 32 may interfere with the recess 32m of the main body portion 32a of the slat 32. In such a case, instead of the elongated hole 68 provided as the positioning means, a U-shaped cut extending outward from the end face 62c located inside in the width direction so as to avoid contact with the recess 32m. All you have to do is form a notch.

FIG. 11 is a diagram showing another form of the lock plate 60. In each of the above examples, the bent piece 63; 63 is formed on the lock plate 60 to set a welded portion between the lock plate 60 and the slats 32, but as shown in FIG. 11, the bent piece is set. 63; 63 may be omitted, and the flat plate-shaped mounting portion 62 may be directly welded to the slats 32. In this case, the end faces 63a; 63a of the mounting portion 62 are in cross-sectional view orthogonal to the extension direction of the slat 32 so that the end edges 63A; 63A come into contact with the inclined portions 32d; 32e before the end edges 63B; 63B. It is formed in a trapezoidal shape. That is, the edge 63A on the slat 32 side forming the end surface 63a; 63a of the flat plate-shaped mounting portion 62; the edge 63A; 63A on the opposite side to the end edge 63A; Therefore, the gap with respect to the slat 32 can be controlled. Such machining of the end faces 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 slats 32 by welding along the edge 63A; 63A in contact with the inclined portion 32d; 32e of the slats 32, so that the shutter curtain. It is possible to prevent the guide rail 20 of 30 from falling off from 20; 20. By providing the elongated hole 68 in the mounting portion 62, welding by a robot can be automated.

FIG. 13 is a diagram showing another form of the lock plate 60. The lock plate 60 shown in FIG. 13 has a bent piece 63u; 63u bent in the same direction as the claw portion 64 on the mounting portion 62, and a bent piece 63d; 63d bent in the opposite direction to the claw portion 64. To prepare for. The folded piece 63u; 63u is formed on the claw portion 64 side of the mounting portion 62, and the bent piece 63d; 63d is formed inside the bent piece 63u; 63u in the width direction. By providing the bent pieces 63u; 63u; 63d; 63d in this way, one lock plate 60 can be attached to the slats 32 with the claws 64 facing in the opposite direction. For example, as a method of welding to the slat 32, as shown in FIG. 6B, it is desired to bring the edge 63A; 63A into contact with the slat 32 for welding, but the direction of the claw portion 64 is directed to the indoor side or the outdoor side in the depth direction. If you want to turn it, you need 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 63u; 63u and the bent pieces 63d; 63d that 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 piece 63u; 63u located inside in the width direction and the slat 32 are welded together. When the claw portion 64 is fixed to the slat 32 toward the outdoor side in the depth direction as shown in FIG. 14 (b), the bent piece 63d; 63d and the slat located on the outer side in the width direction (claw portion 64 side). It suffices to weld with 32.

In the description so far, the slats 32 have a shape in which the central portion is gently recessed in a concave shape toward the indoor side in the depth direction of the slats 32 in the cross-sectional view. However, as shown in FIG. 15, the slats 32 have been described. The main body portion 32a of the above can also be applied to a slat having a shape in which the central portion gently swells in a convex shape toward the rear in the depth direction. In general, 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; 63A of the bent piece 63; 63 and the slat 32. It shows the one which is welded between the inclined portion 32d; 32e. 15 (b) shows the lock plate 60 formed as shown in FIG. 5 with the claw portion 64 facing the outdoor side in the depth direction, the end surface 63a of the bent piece 63; 63; 63a; and the inclined portion 32d of the slats 32; The edge 63B; 63B side is welded from between 32e. 15 (c) shows the lock plate 60 formed as shown in FIG. 8 with the claw portion 64 facing the indoor side in the depth direction, the end face 63a of the bent piece 63; 63; the inclined portion 32a of the slats 32; The edge 63B; 63B side is welded from between 32e. 15 (d) shows the lock plate 60 formed as shown in FIG. 8 with the claw portion 64 facing the outdoor side in the depth direction, and the end edge 63A; 63A of the bent piece 63; 63 and the inclined portion 32d of the slats 32. It is shown to be welded to and from 32e. Further, in FIG. 15 (e), the lock plate 60 formed as shown in FIG. 11 is directed toward the indoor side in the depth direction of the claw portion 64, and the end edge 63A; 63A of the bent piece 63; 63 and the slats 32 are inclined. It is designed to be welded between the portions 32d; 32e.

FIG. 16 is a diagram showing another form of the lock plate 60. FIG. 17 is a diagram showing an end portion of the slats 32. The slats 32 shown in FIG. 17 have a shape in which the main body portion 32a gently swells in a convex shape at the central portion toward the rear in the depth direction. Hereinafter, the slats 32 are used in other forms of the lock plate 60. Will be explained. When the main body portion 32a is gently curved in a convex shape as in the slats 32 shown in FIG. 16, the length dimension of the mounting portion 62 in the height direction is set to be narrower than the width of the inclined portion 32d; 32e. By doing so, the bent piece 63; 63 is formed on the mounting portion 62 as shown in FIGS. 5 and 8, or the mounting portion 62 is formed into a flat plate shape as shown in FIG. 11 and the end surface on the height side of the mounting portion 62. The edge 62B; 62B on the slat 32 side of the mounting portion 62 can be directly contacted with the back surface of the main body 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 body portion 32a of the slats 32 without fixing the lock plate 60 to the inclined portion 32d; 32e of the slats 32. In the following description, the lock plate 60 will be described as being fixed to the main body portion 32a of the slats 32.

As shown in FIG. 17, the lock plate 60 has a stopper portion (displacement preventing means) 65; which prevents the slats connected via the first and second curl portions 32b; 32c from being displaced in the width direction. 65 is provided integrally with the claw portion 64.
The stopper portion 65; 65 is integrally formed with the lock plate 60 together with the claw portion 64, the mounting portion 62, and the like. Specifically, it is provided so as to form a pair of upper and lower parts in the height direction from between the claw portion 64 and the mounting portion 62, and is formed so as to form an airfoil shape protruding inward in the depth direction in a slightly inclined state. Will be done.
In the stopper portion 65; 65, when the slats 32 are engaged with each other, the trailing edges of the upper and lower stopper portions 65; 65 hit the edges of the upper and lower first and second curl portions 32b; 32c. , The connected slats 32 are fixed to each other in the positioning state to prevent slippage.

The bent portion 66; 66 of the stopper portion 65; 65 bent so as to be inclined with respect to the mounting portion 62 is formed with a recess 67; 67 recessed from the slat 32 side to the outside in the width direction (claw portion direction). ing. Since the stopper portion 65; 65 is located so as to be in contact with the side end faces of the first and second curl portions 32b; 32c which are the connecting portions of the slats 32 as described above, for example, when assembling the shutter curtain or when constructing the stopper portion 65; 65. In order to adjust the length of the slat curtain according to the vertical length of the opening of the object, the slat 32 may be inserted and removed from each other and the retaining work may be performed at the site, and the stopper portion 65; 65 is bent back. .. Since the end face of the stopper portion 65; 65 on the slat 32 side has a slight gap set with respect to the end face of the slat 32 so that the slat 32; 32 can rotate with each other, the stopper portion 65; 65 can be bent back. If this is done, the bent portion 66; 66 will bulge and interfere with the end portion of the slats 32. Therefore, 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 is required, but the width dimension of the bent portion 66; 66 is large. By providing the recesses 67; 67 on the slats 32 side so as to be thin, extra repair work such as scraping off the bulge becomes unnecessary. In addition, the force required for bending back is reduced, and workability can be improved.
As shown in FIG. 18, by providing every other lock plate 60 on the slat 32 constituting the shutter curtain 30, it is possible to prevent the slat 32 from shifting in the width direction, so that strong winds and the like can be prevented. As a result, even if a force that moves the slat 32 inward in the width direction acts, the claw portion 64 is evenly engaged with the guide rail 20; 20, and the shutter curtain 30 falls off from the guide rail 20; 20. The prevention performance can be stabilized.

FIG. 19 is a diagram showing a slip prevention plate 80 in which the slip prevention means of the slats 32 is separated from the lock plate 60 shown in FIG.
As shown in FIG. 19, the slip prevention plate 80 is formed by forming a metal plate having a thickness thicker than that of the slats 32 in a substantially T shape as a whole without the claw portion 64 from the lock plate 60 shown in FIG. Is formed. The slip prevention plate 80 is a flat plate rectangular fixing portion 82 and a wing projecting in an inclined state toward the inside in the depth direction so as to form a pair vertically from the outer end portion in the width direction of the fixing portion 82 in the height direction. A stopper portion 85; 85 forming a mold shape is provided.
A long hole 88 is formed in the fixing portion 82 like the lock plate 60, and is configured to enable welding to the slats 32 by a robot using a jig J. The bent portion 86; 86 of the stopper portion 85; 85 bent so as to be inclined with respect to the fixed portion 82 is formed with a recess 87; 87 that is recessed from the slat 32 side to the outside in the width direction (claw portion direction). ing. With respect to the recess 87, the same effect as that of the recess 67 of the lock plate 60 shown in FIG. 16 can be obtained.
As shown in FIG. 20, the slip prevention plate 80 is provided alternately with the lock plates 60 as shown in FIGS. 5, 8 and 11 in the shutter curtain 30, so that the shutter curtain 30 falls off from the guardrail 20; 20. Contributes to stable dropout prevention performance.

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

The pipe shutter 110 is generally wound or unwound along a pair of guide rails 113; 113 installed apart from each other on both sides in the width (frontage) direction of the opening 112 and an extension direction of the guide rail 113. It includes a pipe curtain 130 that opens and closes the opening 112, and a winding mechanism 150 installed in the accommodation space in the shutter case 114 provided above the opening 112 and the guide rail 113; 113.
In the present specification, the "width (frontage) direction" refers to a direction orthogonal to the opening / closing direction of the pipe curtain 130 and 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 in a state of being partially embedded in the structure skeleton 111 so that the longitudinal direction is perpendicular to the structure skeleton 111.
As shown in FIG. 22, the guide rail 113 includes a guide frame 160 that guides the movement of the pipe curtain 130, and a stopper frame 170 that prevents the pipe curtain 130 from falling out from the opening of the guide frame 160.
The guide frame 160 includes a guide portion 160a formed in a U-shaped cross section of one opening, and a skeleton fixing portion 160b; 160c bent in the opposite direction at a right angle from each opening end. The guide frames 160; 160 have openings 161; 161 facing each other, and the skeleton fixing portions 160b; 160c are fixed to the skeleton 111 end face in a state where the guide portions 160a; 160a are embedded in the skeleton 111.
The stopper frame 170; 170 is formed in a symmetrical shape with the pipe curtain 130 interposed therebetween. Each stopper frame 170 is bent at a substantially right angle in the depth direction and the width direction to form a folded portion 170a, and is bent at a right angle from the folded portion 170a to form a skeleton fixing portion 160b; 160c of the guide frame 160. It is provided with an extension portion 170b extending from the extension portion 170b and a lock portion 170c bent at a right angle from the extension 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 front view grid pattern by a plurality of pipe bodies 131 and a link mechanism 132 that connects the plurality of pipe bodies 131 to each other.
The plurality of link mechanisms 132 are composed of a plurality of plates connected to each other in a direction orthogonal to the longitudinal direction of the pipe body 131. Circular holes through which the pipe body 131 can be inserted are formed on both ends of each plate, and a connecting mechanism for rotatably connecting the plates to each other is provided, and a plurality of pipes connected by the link mechanism 132 are provided. The body 131 is rotatably connected so that it can be wound up.

As shown in FIG. 22, a retaining piece 135 is provided at each end of the pipe body 131 connected to each other by a plurality of link mechanisms 132. The retaining piece 135 is a tubular body 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 to be larger than the outer diameter D2 of the pipe body 31, and is set to be larger than the width dimension W1 between the pair of stopper frames 170; 170 lock portions 170c ;; 170c.
In other words, the pipe curtain 130 by setting the width dimension W1 between the lock portions 170c ;; 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. Can be prevented from falling off from the guide rail 113.

Therefore, in the 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 is roughly composed of the left and right brackets 115; 115 that form a part of the shutter case 114, the shaft 151 erected between the left and right brackets 115; 115, and the winding direction and the winding direction with the shaft 151 as the center of rotation. It includes a wheel 152 that can rotate in the feeding direction, and a coil spring 153 that is wound around the shaft 151.

The shaft 151 is a support 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 through a fitting hole (not shown) provided in the center thereof, and freely rotates with the shaft 151 as the center of rotation. Further, the wheels 152; 152 are connected to each other by a plurality of winding members 154.

The take-up member 154 is a support column extending in parallel with the shaft 151, and both ends thereof are fitted into connection holes (not shown) provided at equal intervals in the circumferential direction around the fitting holes of the wheel 152. By connecting the wheels 152; 152 to each other by the take-up member 154, both wheels 152; 152 rotate around the shaft 151 in synchronization with each other. Further, the upper end of the pipe curtain 130 is fastened to the outer periphery of the take-up member 154 by means of fastening bolts, nuts, or the like via a hanging member (not shown). As a result, 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 an urging member inserted around the axis of the shaft 151, and is connected to a fixedly provided shaft 151 and a wheel 152 rotatably fitted to the shaft 151. One end of the coil spring 153 is fastened to a fastening hole provided in the shaft 151 by a fixing means such as a bolt or a nut. Further, the other end of the coil spring 153 is fixed to the fastening hole formed on the surface of the wheel 152 by fixing means such as bolts and nuts in the same manner 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 extended in the direction of closing the opening 112. As a result, when the opening 112 is opened, the pipe curtain 130 can be wound up with a slight force.

Although the present invention has been described above based on the embodiments, the technical scope of the present invention is not limited to the above embodiments, and it is possible to make various changes and improvements by combining the embodiments. Obvious in the trader. Further, it is clear from the description of the scope of claims that such various modified and improved forms may be included in the technical scope of the present invention.

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

Claims (6)

Guide rails provided so as to face each other between the openings,
An opening / closing body provided so as to be movable along the guide rail,
Provided in the guide rail, and the stopper member for preventing the falling off of the closing body from the front Symbol guide rails,
The guide rail forms a space for accommodating the end portion of the opening / closing body, and an outer frame provided inside the opening / closing body in the width direction and an inner frame provided outside the width direction of the opening / closing body.
It is a shutter device equipped with
The outer frame and the inner frame each have a pair of plate pieces facing the front surface and the rear surface on the end side of the opening / closing body and having facing surfaces extending in parallel with 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 provided flush with each other. The fall prevention member is
A mounting portion attached to the widthwise end of the slats,
A claw portion that is continuous outward in the width direction of the mounting portion and is bent in the guide rail, and a claw portion.
Equipped with
The mounting portion has an end face that faces an inclined portion that is inclined toward the depth direction from the upper and lower ends of the main body portion of the slats and extends along the width direction of the slats.
The shutter device according to claim 1 , wherein an edge extending along the width direction of the slats on the end face is attached in contact with the inclined portion. The shutter device according to claim 2 , wherein the mounting portion includes a through hole penetrating in the plate thickness direction. A misalignment prevention member provided in the guide rail to prevent misalignment of the slats in the width direction is provided.
The misalignment prevention member is
A mounting portion provided so as to project outward from the widthwise edge of the slat and attached to the widthwise end of the slat.
A pair of stopper portions extending vertically with respect to the mounting portion so as to be in contact with the end faces of the upper and lower connecting portions are provided from the mounting portion protruding outward from the widthwise end edge of the slats.
The shutter according to any one of claims 1 to 3, wherein the stopper portion is provided with a recess that is recessed outward in the width direction on the slat side of the bent portion that starts to incline with respect to the mounting portion. Device. The guide rail includes a receiving frame fixed to the skeleton and an intermediate frame.
The inner frame is fixed to the receiving frame via the intermediate frame, and the inner frame is fixed to the receiving frame.
The shutter device according to any one of claims 1 to 4, wherein the outer frame is fixed to the inner frame via a receiving frame and a support frame . Claims 1 to 5 are characterized in that the length dimension of the plate piece in the depth direction of the outer frame and the length dimension of the plate piece in the depth direction of the inner frame are set to be the same. The shutter device according to any one.

Images