End member for base plate in building shutter device and method for installing end member for base plate

Abstract

To easily attach end members 8 for a seat plate to both left and right edge portions of a seat plate 7 provided at the lowest end of a shutter curtain 3.SOLUTION: An end member 8 for a seat plate is configured to include an upper piece 8a, a lower piece 8b that is shorter than the upper piece 8a, and a vertical piece 8c; the upper piece 8a is inserted from below into a gap S between a bottom plate piece 7b and a guide rail 2 with the lower piece 8b being in a vertical position positioned inside the upper piece 8a in a lateral direction, thereby swinging the upper piece 8a inward in the lateral direction under the condition that the tip of the lower piece 8b is in an upwardly moving state in close proximity to or in contact with the underside of the bottom plate piece 7b; and the upper piece 8a is transformed into an attached position facing the top surface of the bottom plate piece 7b.SELECTED DRAWING: Figure 9

Description

[Technical Field]

[0001] The present invention relates to the technical field of a seat plate end member and a method of attaching the seat plate end member in a building shutter device for opening and closing openings in buildings such as buildings, houses, garages, etc. [Background technology]

[0002] Generally, shutter devices for buildings are installed to open and close openings such as entrances and exits of buildings such as buildings, homes, and garages. Such shutter devices are composed of various components such as guide rails installed on the left and right sides of the opening, a shutter curtain guided by the guide rails, and a winding body arranged above the opening to wind the shutter curtain. In such shutter devices, a seat plate is installed at the bottom end of the shutter curtain, and this seat plate is connected to the lowest slat of the slats connected in a vertical series to form the shutter curtain. Some seat plates are configured in an inverted T shape, with a vertical plate portion to which the lowest slat is connected and a bottom plate portion extending in the front-to-rear direction from the lower edge of the vertical plate portion. In seat plates configured in this way, the bottom plate portions at both left and right end edges of the bottom plate portion are cut to fit and guide the left and right end edges of the bottom plate portion into the guide rails. As a result, the cut left and right edge portions of the bottom plate piece are exposed and stick out from the guide rail, and there is a risk of injury if a human body such as a finger is swung against them.To avoid this, a configuration is known in which plastic seat plate end members are attached to the left and right edge portions of the seat plate (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Jikko No. 59-32714 Summary of the Invention [Problem to be solved by the invention]

[0004] However, seat plate end members may need to be replaced if they deteriorate or become damaged. However, the conventional seat plate end members were designed to be attached to the end of the seat plate from the outside in the left and right directions, so in order to replace the seat plate end member, the seat plate must be removed from the guide rail. However, removing the seat plate from the guide rail is not easy, and there are problems such as the guide rail having to be removed from the main body or large-scale construction work such as removing the lining above the opening, and these are the issues that the present invention aims to solve. [Means for solving the problem]

[0005] The present invention has been made in view of the above-mentioned circumstances and with the aim of solving these problems, and the invention of claim 1 relates to a shutter device for a building comprising guide rails provided on the left and right sides of an opening such as an entrance or exit of a building, a shutter curtain that is guided up and down by the guide rails to open and close the opening, and a winding body that is arranged in a storage space above the opening and around which the shutter curtain is wound in a spiral shape, the shutter curtain comprising slats connected in a series in the vertical direction and a bottom plate, the bottom plate being configured in an inverted T shape with a vertical plate piece connected to the bottom slat and a bottom plate piece extending in the front-to-rear direction from the lower end edge of the vertical plate piece, and seat plate end portions provided on both the left and right ends of the seat plate. In order to configure the seat plate end member so that the material can be attached and detached freely, the seat plate end member has upper and lower piece portions that face the upper and lower surfaces of the bottom plate piece, and vertical piece portions that connect the left and right outer edge portions of the upper and lower piece portions, and the upper piece portion is configured to be longer toward the left and right inward relative to the lower piece portion, and the seat plate end member is configured in a vertical position where the lower piece portion is positioned left and right inward relative to the upper piece portion, and the upper piece portion is inserted from below into the gap between the bottom plate piece and the guide rail, and the upper piece portion, which is in an upward moving state with the tip of the lower piece portion close to or abutting the lower surface of the bottom plate piece, is caused to swing inward toward the left and right, thereby transforming the upper piece portion into an attachment position facing the upper surface of the bottom plate piece.This is an end member for a seat plate in a building shutter device, characterized in that The invention of claim 2 is an end member for a seat plate in a shutter device for a building described in claim 1, characterized in that the swinging transformation of the end member for the seat plate to the installation posture is performed at a portion where the lower piece or upper piece abuts or is close to the outer edge portion of the bottom plate piece in the left and right directions. The invention of claim 3 is an end member for a seat plate in a shutter device for a building described in claim 1 or 2, characterized in that the end member for the seat plate in the installation position is configured so that an engagement-type installation is achieved by fitting an engagement protrusion formed on the bottom plate piece into an engagement hole formed on the upper piece piece. The invention of claim 4 is an end member for a seat plate in a shutter device for a building described in claim 3, characterized in that a through hole communicating with the locking hole is formed in the bottom plate piece, and the peripheral portion of the through hole is formed to protrude upward so as to fit into the locking hole and become a locking protrusion, and the end member for the seat plate is fastened to the seat plate via fastening means that passes through the through hole and the locking hole. The invention of claim 5 is an end member for a seat plate in a shutter device for a building described in claim 4, characterized in that a cushioning material is provided on the upper surface of the locking hole portion of the upper piece portion to cushion the seat plate when it abuts against a support member provided above the guide rail when the shutter curtain is fully open, and the cushioning material is fastened via a fastening means for fastening the end member for the seat plate to the seat plate. The invention of claim 6 is an end member for a seat plate in a shutter device for a building described in claim 5, characterized in that the bottom plate piece has a concave shape with an open bottom, the fastening means is a screw, and the screw is fastened in a state where the screw head is contained within the concave shape portion. The invention of claim 7 relates to a shutter device for a building, comprising guide rails provided on the left and right sides of an opening such as an entrance or exit of a building, a shutter curtain that is guided up and down by the guide rails to open and close the opening, and a winding body that is arranged in an accommodation space above the opening and around which the shutter curtain is spirally wound, the shutter curtain comprising slats connected in a series in the vertical direction and a lowermost seat plate, the seat plate being configured in an inverted T shape with a vertical plate piece connected to the lowermost slat and a bottom plate piece extending in the front-to-rear direction from the lower end edge of the vertical plate piece, in which end members for the seat plate are configured to be detachably attached to both left and right ends of the seat plate, the end members for the seat plate comprising upper and lower plate pieces that face the upper and lower surfaces of the bottom plate piece and vertical plate pieces that connect outer end edges of the upper and lower plate pieces together in the left and right direction, the upper plate piece being configured to pass through the vertical plate piece, and a method for attaching the seat end member to a building shutter device, which is characterized in that the seat end member is divided into front and rear by notches formed in the left and right direction, and is configured to be long toward the left-right inward relative to the lower piece, and the method for attaching the seat end member to the seat plate includes the following steps, in order: an insertion step in which the upper piece is inserted from below into the gap between the bottom piece and the guide rail while the lower piece is in a vertical position positioned left and right inward relative to the upper piece; an upward movement step in which the inserted seat end member is moved upward until the tip of the lower piece approaches or abuts the underside of the bottom piece; a transformation step in which the upper piece that has been moved upward is swung inward in the left and right direction to transform the upper piece so that it faces the top surface of the bottom piece; and a movement step in which the transformed seat end member is moved inward in the left and right direction to the attachment position of the seat end member. The invention of claim 8 is a method for installing a seat plate end member in a building shutter device described in claim 7, characterized in that an engagement hole is formed in the upper piece of the seat plate end member and an engagement protrusion is formed in the bottom plate piece, and the installation method further includes an installation step in which the seat plate end member, which has been moved to the installation position, is installed in an engagement-like manner by fitting the engagement hole formed in the upper piece of the seat plate end member into the engagement protrusion formed in the bottom plate piece. [Effects of the Invention]

[0006] By adopting the invention of claim 1 or 7, the end member for the seat plate, which can be detachably attached to both the left and right ends of the seat plate, comprises upper and lower pieces that face the upper and lower surfaces of the bottom plate piece, and vertical pieces that connect the left and right outer edge portions of the upper and lower pieces, the upper piece being divided into front and rear by a cutout formed in the left and right direction for the vertical piece to pass through, and is configured to be longer inward in the left and right direction relative to the lower piece, and the end member for the seat plate configured in this way is in a vertical position where the lower piece is positioned inward in the left and right direction relative to the upper piece, and the upper piece is inserted from below into the gap between the bottom plate piece and the guide rail, and the upper piece, in an upward moving state with the tip of the lower piece close to or abutting the underside of the bottom plate piece, is caused to swing inward in the left and right direction, thereby eliminating the need to move the seat plate to the other side of the guide rail each time the installation work is performed, and the installation work can be performed in the natural hanging position with the shutter curtain in a partially open state, improving workability. By adopting the invention of claim 2, the swinging transformation of the end member for the seat plate into the mounting position is carried out in a state where the lower piece or upper piece abuts or is close to the outer edge portion of the bottom plate piece in the left and right directions, thereby enabling the end member for the seat plate to be mounted in a stable state. By adopting the invention of claim 3, the end member for the seat plate in the mounting position is temporarily held in place by the locking protrusion formed on the bottom plate piece fitting into the locking hole formed on the upper piece, thereby enabling the end member for the seat plate to be mounted in a stable state. By adopting the invention of claim 4, the peripheral portion of the through hole formed in the bottom plate piece and communicating with the locking hole is formed to protrude upward as much as possible to become a locking protrusion that fits into the locking hole, and the end member for the seat plate is fastened to the seat plate via fastening means that passes through the through hole and the locking hole.As a result, the peripheral portion of the through hole doubles as a locking protrusion, and the end member for the seat plate can be fastened to the seat plate while simplifying the structure. By adopting the invention of claim 5, a cushioning material is provided on the upper surface of the locking hole portion of the upper piece portion to cushion the seat plate when it comes into contact with the support member provided above the guide rail when the shutter curtain is fully open.As a result of this cushioning material being fastened via a fastening means for fastening the end member for the seat plate to the seat plate, the fastening means can be used to attach both the cushioning material and the end member for the seat plate to the seat plate, thereby improving workability. By adopting the invention of claim 6, the bottom plate piece portion has a recessed shape with an open bottom, and the head of the screw, which is the fastening means, fits within the recessed portion, allowing the cushioning material and the end member for the seat plate to be attached to the seat plate, so that the screw head does not get in the way when attaching. By adopting the invention of claim 8, after carrying out the invention of claim 7, an installation process is carried out in which the locking hole formed in the upper piece of the seat plate end member that has been moved to the installation position is inserted into the locking protrusion formed in the bottom plate piece, thereby locking the seat plate end member in an installation manner, making it easier to install the seat plate end member. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 2 is a front view of the shutter device for a building. [Figure 2] FIG. 2 is a side view of the shutter device for a building. [Figure 3] FIG. [Figure 4] 10A, 10B, and 10C are a plan view, a front view, and a side cross-sectional view of the seat panel portion with the seat panel end member attached. [Figure 5] 10A and 10B are an enlarged plan view and a side cross-sectional view of the seat plate end member portion. [Figure 6] FIG. 10 is an exploded side view of the seat plate end member being attached to the seat plate. [Figure 7] 1A, 1B, 1C, 1D, and 1E are a plan view, a side view, a bottom view, a front view, and a perspective view of an end member for a seat plate. [Figure 8] 10(A) and 10(B) are explanatory views showing the first half of the process of attaching the seat plate end member. [Figure 9] 10A, 10B, and 10C are explanatory views showing an example of the latter half of the process of attaching the seat plate end member. [Figure 10] 10A, 10B, and 10C are explanatory views showing another example of the latter half of the process of attaching the seat plate end member. [Figure 11] 10A and 10B are explanatory views showing the final step of fastening and attaching the seat plate end member to the seat plate. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a shutter device for a building that is installed in an opening E such as an entrance or exit of a building, and the shutter device 1 is configured as a manual shutter device using various components such as guide rails 2 provided on both the left and right sides of the opening, a shutter curtain 3 that is guided by the guide rails to open and close the opening E, a winding body 4 provided above the opening E and around which the shutter curtain 3 is wound, and a balance spring 5 for balanced forward and reverse rotation of the winding body, but it is of course also possible to adopt the present invention in an electric shutter device. The winding body 4 has both end edges supported by left and right brackets 4a attached to the main body G side.

[0009] The shutter curtain 3 is constructed by connecting a series of slats 6 that are long in the left-right direction in the up-down direction, and connecting a seat plate 7 to the lowest slat 6a.The seat plate 7 is formed in an inverted T shape in side view, with a vertical plate portion 7a whose upper edge is connected to the lowest slat 6a, and a bottom plate portion 7b extending in the front-to-back direction from the lower edge of the vertical plate portion 7a. The left and right end edges of the seat plate 7 have cut-out edge portions 7c formed by cutting out (cutting out) the bottom plate piece 7b, so that the bottom plate piece 7b is absent and only the vertical plate piece 7a is formed.With this structure, the shutter curtain 3 is configured so that the left and right end edges, which consist of only the slats 6 and the vertical plate piece 7a of the seat plate 7, are fitted into the guide rails 2 and are guided to open and close. Incidentally, the cutout edge 7c formed in the bottom plate piece 7b is an inclined edge that extends outward in the left-right direction toward the vertical plate piece side, but it may of course be cut out at a right angle.

[0010] Furthermore, the bottom plate piece 7b of the seat plate 7 is formed with a main plate piece 7ba extending in the front-rear direction from the lower edge of the vertical plate piece 7a, and front and rear leg pieces 7bb bent downward from the front and rear edges of the main plate piece 7ba, forming a U-shaped recessed shape with an open bottom. When the shutter curtain 3 is fully open, a cushioning material 9 (described below) made of a rubber elastic material provided on the main plate piece 7ba abuts against a contact member 10a provided at the upper end of the guide rail 2. For this reason, a truncated conical through-hole 7d is formed in the bottom plate piece 7b at the attachment position of the cushioning material 9 by burring or the like, with a peripheral edge 7da protruding upward from the upper surface of the bottom plate piece 7b. Incidentally, the backing member 10a is provided in the mulberry section M, which is the intake port of the shutter curtain 3 above the opening E. Specifically, curtain guides 10 for guiding the shutter curtain 3 to the guide rails 2 are arranged on the left and right edge portions of the mulberry section M. The curtain guides 10 are attached to the left and right brackets 4b in the mulberry section M and to the inner and outer mulberry frame materials 4b provided between the left and right brackets 4b, but in this embodiment, the piece for attaching the curtain guide 10 to the mulberry frame materials 4b via fixing means such as screws 10b is the backing member 10a, allowing the member to be used for both purposes. The seat plate 7 thus constructed is configured so that seat plate end members 8 embodying the present invention can be detachably attached to both left and right edge portions thereof. Incidentally, the end member 8 for the seat plate is formed of a polyamide-based synthetic resin material (e.g., 6-nylon, 6, 6-6 nylon) in this embodiment, but a polyolefin-based synthetic resin material such as polyethylene or polypropylene, or various other synthetic resin materials such as polyvinyl chloride or polyester can be adopted as the forming material.

[0011] Each of the end members 8 for the seat plate has a flat plate shape and includes upper and lower pieces 8a and 8b that face the upper and lower surfaces of the bottom plate piece 7b, and a vertical piece 8c that connects the outer edge portions in the left-right direction of the upper and lower pieces 8a and 8b. The outer portion in the left-right direction of the vertical piece 8c extends in an inclined shape toward the outer side in the left-right direction toward the center in the front-back direction corresponding to the notch edge 7c of the bottom plate piece 7b. And in the upper piece 8a and the vertical piece 8c, a notch 8d for the vertical plate piece 7a to penetrate in the vertical direction is formed. And on the lower piece 8b of this member, a protruding portion 8ba that protrudes in a tongue shape toward the outer side in the left-right direction from the outer edge portion 8ca in the left-right direction of the vertical piece 8c is formed. The front-back width X of the protruding portion 8ba is set to be narrower (X < Y) than the groove width Y of the guide groove 2a of the guide rail 2. The protruding portion 8ba is set not to enter the guide groove 2a of the guide rail 2 when the end member 8 for the seat plate described later is attached to the seat plate 7.

[0012] Furthermore, the upper piece 8a of the end member 8 for the seat plate is longer toward the inner side in the left-right direction than the lower piece 8b. A locking hole 8aa is formed in the tip side portion that extends beyond the lower piece 8b of the upper piece 8a. The portion where the locking hole 8aa is formed is the mounting position of the buffer material 9. In the state where the end member 8 for the seat plate is positioned at the mounting position as described later, the peripheral edge portion 7da of the through hole 7d formed in the bottom plate piece 7b is inserted, and the end member 8 for the seat plate is configured to be attached in a locked state. The seat plate end member 8 that has been attached in an interlocking manner has its upper piece 8a fastened to the bottom plate piece 7b by the fastening member, screw 11, and its lower piece 8b, which comes into contact with the floor when the shutter curtain 3 is fully closed, is not involved in attaching the seat plate attachment member 8 to the seat plate 7. In this case, the cushioning material 9 is placed against the upper surface of the locking hole 8aa with the peripheral portion 7da of the through hole 7d fitted in, and the screw 11 inserted from below passes through the locking hole 8aa and through hole 7d, and the tip of the threaded portion 11a is screwed in with the nut 11c, so that the attachment of the cushioning material 9 can be performed simultaneously with the fastening of the seat plate end member 8 to the bottom plate piece 7b. In this case, the screw head 11b of the screw 11 is configured to fit within the recessed portion of the bottom plate piece 7b, which is open at the bottom and is composed of the main body piece 7ba and the leg piece 7bb, thereby preventing the screw head 11b from protruding downward from the underside of the bottom plate piece 7b. However, it goes without saying that such a problem can be solved by using a countersunk head screw for the screw 11 and by configuring the screw head 11b to be contained within the thickness of the bottom plate piece portion 7b.

[0013] Next, the procedure for attaching the seat plate end member 8 configured as above will be described with reference to Figures 8 to 11. Note that when removing the seat plate end member 8, the reverse procedure of the attachment procedure can be carried out, and therefore the description thereof will be omitted. When attaching the seat plate end member 8, the shutter curtain 3 is set to a half-open state to make the work easier. Of course, it can be fully opened, but if it is fully opened, the seat plate 7 is located at a high position, making it difficult to attach the seat plate end member 8. Then, without moving the half-open shutter curtain 3 to either the left or right, the seat plate end member 8 is attached through the gap S between the guide rail 2 and the bottom plate piece 7b in its natural hanging state. In this case, the shutter curtain 3 can be shifted left or right to perform the attachment work if necessary. Incidentally, the thickness of the seat plate end member 8 (thickness between the upper and lower pieces 8a, 8b) is set to be thinner than the gap S between the guide rail 2 and the bottom plate piece 7b. To do this, first, the seat plate end member 8 is placed in a vertical position with the lower piece 8b positioned inside the upper piece 8a in the left-right direction, and in this vertical position, the upper piece 8a is inserted from below into the gap S between the cutout edge 7c of the bottom plate piece 7b and the guide rail. Then, the inserted seat plate end member 8 is pushed up, and the tip of the lower piece 8b moves upward until it approaches or abuts against the underside of the bottom plate piece 7b.

[0014] From this upward movement state, by pushing the seat plate end member 8 upward and outward in the left-right direction, the upper piece 8a swings inward in the left-right direction, causing the vertical plate piece 7a to fit into the cutout portion 8d and the seat plate end member 8 to change shape so that the upper piece 8a faces the top surface of the bottom plate piece 7b. In this case, the deformation modes of the seat end member 8 include, as shown in Figure 9, a mode in which the tip of the lower piece 8b and the middle part of the upper piece 8a are each in contact with the bottom piece 7b, and a mode in which the lower piece 8b is moved away from the bottom piece 7b and the middle part of the upper piece 8a is in contact with the bottom piece 7b, and a mode in which the lower piece 8b is moved away from the bottom piece 7b and the upper piece 8a is moved away from the bottom piece 7b, which are described as notable (ideal) deformation modes, but in reality the seat end member 8 will rotate in a combination of these deformation modes, and when it rotates in this manner the support is provided by the parts of the upper and lower pieces 8a, 8b that are in contact with the end parts of the seat end member 8.

[0015] In this way, the seat plate end member 8 is inserted into the gap S in a vertical position, and during the installation process in which the seat plate end member 8 is swung and deformed so that the upper piece 8a faces the top surface of the bottom piece 7b, the installation can be performed in a state in which the protruding part 8ba, which is the part of the seat plate end member 8 that faces the guide rail 2, does not get into the guide groove 2a, and as a result, there is no need to move the shutter curtain 3 left and right each time to install the seat plate end member 8. To achieve this setting, the thickness of the seat plate end member 8 is set to be thinner than the gap S (in this type of shutter device, the gap S is generally set between 5 and 10 mm).

[0016] Then, when the upper piece 8a is in close proximity to or abutting against the upper surface of the bottom plate piece 7b, the seat plate end member 8 can be further pushed inward in the left-right direction, causing the seat plate end member to move inward in the left-right direction and to move to the attachment position of the seat plate end member.When the seat plate end member 8 has moved to this attachment position, the locking hole 8aa formed in the upper piece 8a fits externally into the peripheral portion 7da, which serves as the locking protrusion formed on the bottom plate piece 7b, thereby achieving a provisionally held, locked attachment of the seat plate end member 8. Thereafter, as shown in Figure 11, the seat plate end member 8 together with the cushioning material 9 is fastened to the bottom plate piece portion 7b using screws 11, thereby fastening and attaching the seat plate end member 8 and the cushioning material 9 to the seat plate 7.

[0017] The process of attaching the seat plate end member 8 to the seat plate 7 can be summarized as follows: an insertion step of inserting the upper piece 8a from below into the gap S between the bottom plate piece 7b and the guide rail 2 in a vertical position in which the lower piece 8b is positioned inside the upper piece 8a in the left-right direction; an upward movement step of moving the inserted seat plate end member 8 upward until the tip of the lower piece portion 8b comes close to or abuts against the lower surface of the bottom plate piece portion 7b; a transformation step of swinging the upper piece portion 8a of the seat plate end member 8 that has been moved upward inward in the left-right direction so that the upper piece portion 8a faces the upper surface of the bottom plate piece portion 7b; a moving step of moving the deformed seat plate end member 8 inward in the left-right direction to the mounting position of the seat plate end member 8; And further, an attachment step of fitting the locking hole 8aa formed in the upper piece 8a of the seat plate end member 8 moved to the attachment position into the peripheral edge 7da of the through hole 7d, which is a locking protrusion formed in the bottom plate piece 7b, thereby attaching the seat plate end member 8 in a temporarily held and locked state; These steps are carried out in order, and in this way the seat plate end member 8 can be easily attached to the seat plate 7.

[0018] The seat plate end member 8, which has been temporarily attached in this manner, is fastened to the bottom plate piece portion 7b using a screw 11, which is an example of a fastening device, as mentioned above.In this case, a cushioning material 9 is also attached at the same time, which abuts against the support member 10a provided above the guide rail 2 to cushion the seat plate when it is fully open.

[0019] In the present embodiment configured as described above, when attaching the seat end members 8 to both left and right ends of the seat plate 7 with the bottom plate piece 7b cut out, the seat end members 8 are configured to include upper and lower pieces 8a, 8b that face the upper and lower surfaces of the bottom plate piece 7b, and a vertical piece 8c that connects the outer edge portions of the upper and lower pieces 8a, 8b, and the upper piece 8a is configured to be divided into front and rear by forming a cutout portion 8d in the left and right direction through which the vertical plate piece 7a passes, and is configured to be longer inward in the left and right direction than the lower piece 8b, and The seat plate end member 8 having such a configuration is positioned in a vertical position with the lower piece 8b positioned inside the upper piece 8a in the left-right direction, and the upper piece 8a is inserted from below into the gap S between the bottom plate piece 7b and the guide rail 2, and the upper piece 8a, in an upwardly moving state with the tip of the lower piece 8b close to or abutting the underside of the bottom plate piece 7b, is caused to swing inward in the left-right direction.This eliminates the need to move the seat plate 7 to the other side of the guide rail 2 each time to perform the installation work, and the shutter curtain 3 can be installed in a natural hanging position in a partially open state, improving workability.

[0020] Furthermore, in this case, the support portion that serves as the fulcrum when the seat plate end member 8 swings and transforms into the mounting position is the portion where the lower piece 8b or the upper piece 8a abuts against the outer edge portion in the left and right directions of the bottom plate piece 7b, so that the seat plate end member 8 can be transformed into the mounting position in a stable supported state. When the seat plate end member 8 is in the mounting position, the peripheral portion 7da of the through hole 7d, which serves as a locking protrusion formed in the bottom plate piece 7b, fits into the locking hole 8aa formed in the upper piece 8a, thereby installing the seat plate end member 8 in a temporarily held, locked state, allowing it to be installed in a stable state. In this way, the end member 8 for the seat plate is fastened to the seat plate 7 via a screw 11, which is a fastening means that passes through a through hole 7d having a peripheral portion 7da that fits into the locking hole 8aa. However, the peripheral portion 7da that protrudes to form the through hole 7d also serves as a locking protrusion that locks into the locking hole 8aa, which simplifies the structure while making it easy to fasten the end member 8 for the seat plate to the seat plate 7.

[0021] Moreover, in this device, a cushioning material 9 is provided on the upper surface of the locking hole 8aa formed in the upper piece 8a to cushion the seat plate 7 when it comes into contact with the support member 10a provided above the guide rail 2 when the shutter curtain 3 is fully open.As mentioned above, the cushioning material 9 is fastened via a screw (fastening means) 11 for fastening the seat plate end member 8 to the seat plate 7.As a result, the screw 11 can be used to attach the cushioning material 9 and the seat plate end member 8 to the seat plate 7 at the same time, allowing for dual use and improving workability. In this case, even if the screw 11 is fastened with its head 11b protruding from the underside of the bottom plate piece 7b, the bottom plate piece 7b has a recessed shape with an open bottom, and the head 11b of the screw 11 fits within the recessed shape.As a result, even though the cushioning material 9 and the seat plate end member 8 are attached to the seat plate 7 using the screw 11, the screw head 11b does not protrude below the seat plate 7 and get in the way. [Industrial Applicability]

[0022] The present invention can be used as a seat plate end member and a method for attaching the seat plate end member in a building shutter device that opens and closes openings in buildings such as buildings, houses, garages, etc. [Explanation of symbols]

[0023] 1. Shutter device 2 guide rails 2a Guide groove 3. Shutter Curtain 4 Winding body 6 slats 6a Bottom slat 7 Seat board 7a Vertical plate piece 7b Bottom plate piece 7d through hole 7da Periphery 7c Cutout edge 8 Seat plate end member 8a Upper piece 8aa Locking hole 8b Lower piece 8c Vertical piece 8d Notch 9 Cushioning material 10a Backing member 11 Bis 11b screw head E Opening M Magusa Club S Gap

Claims

1. The shutter curtain is provided with guide rails on the left and right sides of an opening such as an entrance or exit of a building, a shutter curtain that is guided up and down by the guide rails to open and close the opening, and a winding body that is arranged in a storage space above the opening and around which the shutter curtain is wound in a spiral shape. A shutter curtain for a building is provided with slats connected in a series in the vertical direction and a seat plate at the bottom end, and the seat plate is configured in an inverted T shape with a vertical plate portion connected to the bottom end slat and a bottom plate portion extending in the front-to-rear direction from the lower end edge of the vertical plate portion. When the seat plate end members are detachably attached to both left and right ends of the seat plate, The seat plate end member includes upper and lower pieces facing the upper and lower surfaces of the bottom plate piece, and vertical pieces connecting the outer edge portions of the upper and lower pieces in the left and right direction, and the upper piece is configured to be longer inward in the left and right direction than the lower piece, The end member for the seat plate in a shutter device for a building is configured in such a way that the lower piece is positioned inward in the left-right direction relative to the upper piece, and the upper piece is inserted from below into the gap between the bottom piece and the guide rail, and the tip of the lower piece is in an upwardly moving state with the upper piece close to or in contact with the underside of the bottom piece, causing the upper piece to swing inward in the left-right direction, thereby transforming the upper piece into an installation position facing the upper surface of the bottom piece.

2. The end member for the seat plate in the shutter device for a building as described in claim 1, characterized in that the swinging transformation of the end member for the seat plate to the installation posture is performed at a portion where the lower piece or the upper piece abuts or is close to the outer edge portion in the left and right directions of the bottom plate piece.

3. An end member for a seat plate in a shutter device for a building as described in claim 1 or 2, characterized in that the end member for a seat plate in an installation position is configured so that an engagement-type installation is achieved by an engagement protrusion formed on the bottom plate piece being inserted into an engagement hole formed on the upper piece piece.

4. A through hole communicating with the locking hole is formed in the bottom plate piece, The peripheral edge of the through hole is formed to protrude upward so as to fit into the locking hole and become a locking protrusion, 4. The end member for a seat plate in a shutter device for a building according to claim 3, wherein the end member for a seat plate is fastened to the seat plate via fastening means that passes through the through-hole and the locking hole.

5. A cushioning material is provided on the upper surface of the locking hole of the upper piece to cushion the impact when the seat plate comes into contact with the stopper provided above the guide rail when the shutter curtain is fully open.

5. The end member for a seat plate in a shutter device for a building according to claim 4, wherein the buffer material is fastened via fastening means for fastening the end member for a seat plate to the seat plate.

6. The bottom plate piece has a recessed shape with an open bottom side, 6. The end member for a seat plate in a shutter device for a building according to claim 5, wherein the fastening means is a screw, and the screw is fastened in a state where the screw head is fitted into the recessed fitting portion.

7. The shutter curtain is provided with guide rails on the left and right sides of an opening such as an entrance or exit of a building, a shutter curtain that is guided up and down by the guide rails to open and close the opening, and a winding body that is arranged in a storage space above the opening and around which the shutter curtain is wound in a spiral shape. A shutter curtain for a building is provided with slats connected in a series in the vertical direction and a seat plate at the bottom end, and the seat plate is configured in an inverted T shape with a vertical plate portion connected to the bottom end slat and a bottom plate portion extending in the front-to-rear direction from the lower end edge of the vertical plate portion. When the seat plate end members are detachably attached to both left and right ends of the seat plate, The seat plate end member comprises upper and lower pieces facing the upper and lower surfaces of the bottom plate piece, and vertical pieces connecting the outer edge portions of the upper and lower pieces in the left and right direction, and the upper piece is divided into front and rear by forming cutouts in the left and right direction for the vertical piece to pass through, and is configured to be longer inward in the left and right direction than the lower piece, The method for attaching the seat plate end member to the seat plate includes: an insertion step of inserting the upper piece from below into the gap between the bottom plate piece and the guide rail in a vertical position where the lower piece is positioned inside the upper piece in the left-right direction; an upward movement step of moving the inserted seat plate end member upward until the tip of the lower piece portion approaches or abuts against the lower surface of the bottom plate piece portion; a transformation step of swinging the upper piece of the seat plate end member that has been moved upward inward in the left-right direction so that the upper piece faces the upper surface of the bottom plate piece; a moving step of moving the deformed seat plate end member inward in the left-right direction to the mounting position of the seat plate end member; A method for attaching an end member for a seat plate in a shutter device for a building, characterized in that the above steps are carried out in sequence.

8. The seat plate end member has an upper piece portion formed with a locking hole and a bottom piece portion formed with a locking protrusion, The attachment method includes: an attachment step of fitting the locking hole formed in the upper piece of the seat end member moved to the attachment position into the locking protrusion formed in the bottom piece of the seat end member, thereby attaching the seat end member in an engaged state; 8. The method for attaching an end member for a seat plate in a shutter device for a building according to claim 7, further comprising the steps of:

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