CN1978861B - Roller shutter device - Google Patents

Abstract

The invention provides a roller blind device, which comprises a roller shutter box (2) for storing the roller blind (1), guide rails (3) for receiving and guiding the two ends of the roller blind (1), and extending along the length direction of the guide rail (3). The first frame (5a) of the rolling shutter box (2) and the second frame (5b) extending along the length direction of the shutter box (2) are detachably fixed on the guide rail (3) by the first frame (5a) of the installation part (5) ), the second frame (5b) is detachably fixed on the installation surface (2d) of the roller shutter box (2) for installation.

Description

Roller shutter device

technical field

The present invention relates to a roller blind device installed in an opening body of a building.

Background technique

Generally, by directly fixing the side panels located on both sides of the length direction of the shutter box to the outer wall of the upper part of the opening of the building, the shutter box is fixed to the side panels or the outer wall, and the guide rails for guiding the shutter are arranged on the building. On the left and right sides of the opening, this roller blind device is installed on the opening body of the building.

In the above-mentioned installation structure, when installing the roller blind device, first, fix the side plate on the upper part of the opening of the building, install the roller shade shaft on the side plate in sequence, install the roller blind etc. on the roller shade shaft, and install the roller blind The box is installed on the side panel or the outer wall, and finally, guide rails are set. When the guide rail is installed after the shutter box is fixed, it is difficult to adjust the position of the guide rail due to the restrictions caused by the fixed shutter box. Therefore, accurate workability is required for the installation work of the roller blind device, and there is a problem that the man-hour of work cannot be avoided. Furthermore, after the roller blind device is installed, when the roller blind breaks down and needs to be replaced, etc., there is a problem that the guide rail needs to be removed, which requires a lot of labor.

The present invention was made in order to solve the above problems, and an object of the present invention is to provide a roller blind device that facilitates installation work and detachment work.

Contents of the invention

The roller blind device related to the present invention is characterized in that: in the roller blind device installed on the body of the opening of the building, it is equipped with: a roller shutter box for storing the roller blind, guide rails for receiving and guiding the two ends of the roller blind; The installation parts are detachably installed on the roller shutter box and the guide rail respectively, and the roller shutter box is fixed on the upper end of the guide rail through the installation parts.

In the present invention, since the installation parts can be detachably installed on the roller shutter box and the guide rail respectively, and the roller shutter box is fixed on the upper end of the guide rail through the installation parts, so when installing the roller shutter device, the guide rail can be installed on the opening of the building After the body, the roller shutter box is fixed on the upper end of the guide rail through the installation parts. Therefore, by first fixing the shutter box, the position adjustment operation of the guide rail is not restricted, the position adjustment operation between the shutter box and the guide rail can be easily performed, and the installation operation of the roller blind device becomes easy. In addition, due to such a structure, when detaching the roller blind device, the roller shade device can be easily detached by separately detaching the roller shade box and the mounting member, and the guide rail and the mounting member.

In the roller blind device related to the present invention, preferably, the roller shutter box and the installation part are fixed together by a positioning mechanism. Thereby, the installation work of a roller shutter box and an attachment member can be performed easily.

In addition, in the roller blind device according to the present invention, it is preferable that the roller blind is composed of a flexible roller blind sheet and a connected portion protruding in the width direction of the roller blind sheet provided on the surface of the roller blind sheet, In the rolling blind sheet, the lower part of the position where the connected part is provided constitutes the part to be cut off, and the connected part can be connected to the rolling blind sheet for replacement through the first connecting member. size and shape.

In the present invention, "the size and shape that do not interfere with the normal opening and closing of the blind sheet" means that the connected portion is formed in a size and shape that does not affect it when the blind sheet is raised or lowered. The so-called "obstruction of the opening and closing of the shutter sheet" includes, for example: the situation where the shutter sheet cannot be raised or lowered itself; When the roller blind sheet is released from the shaft, when the roller blind sheet is raised or lowered, the roller blind sheet is damaged or abnormal noise is generated.

In the roller blind device of the present invention, the first connecting member is used only when the lower part of the roller blind sheet needs to be replaced, so there is no need to pre-install the first connecting member on the roller blind sheet. Therefore, it is possible to provide a roller blind sheet in which the lower part of the roller blind sheet can be replaced and does not have redundant structural elements. In addition, when the lower part of the roller blind sheet is replaced, the detachment work of the conventionally required pre-installed first connecting member is also unnecessary. In addition, since the connected portion is provided in advance on the shutter sheet, when the lower part of the shutter sheet must be replaced, there is no need to form the connected portion on site (for example, it is not necessary to form a pocket by welding the shutter sheet, etc.) Shaped part), therefore, workability is good.

In addition, in the roller blind device according to the present invention, there is provided a second connecting member installed on the upper end of the roller blind and extending in the width direction of the roller blind, and formed on the peripheral surface of the winding shaft by the length of the winding shaft. The connected recess extending in the direction, and the elongated second fixing part, the width of the opening of the connected recess is larger than the width of the second connecting part, and at the same time, the second connecting part and the The connecting recess is formed in an engageable and disengageable shape by inserting the second fixing member into a space formed between the connected recess and the second connecting member in a state where the connected recess is engaged with the second connecting member. , the release of the engaged state between the second connecting member and the connected concave portion is restricted.

If the second connecting part and the connected recess are formed in a shape that can be engaged and disengaged, the specific shape is not limited, but as one of the preferred ways, the second connecting part is engaged on the bottom side of the connected recess. are connected inside the recess. In this way, a space for inserting the second fixing member and a space for drawing the roller blind can be effectively ensured. The following embodiments show that two fixing pieces are formed on the second connecting member and two fixing grooves are formed on the connected recess, but the number of fixing pieces and fixing grooves is not limited to this, and the fixing pieces can also be set upside down. , Fixing groove parts.

The embodiment described later shows that when the second fixing member is inserted into the space formed between the second connecting member and the connected recess, the second fixing member and the second connecting member, and the second fixing member and the second connected member fit together. combine. If the second fixing member is installed in the space without detachment, the installation is not limited to the use of fitting parts. In the embodiment, the fitting recess is formed on the second fixing member, and the fitting protrusion is formed on the second connecting member and the connected recess, but the fitting recess and the fitting protrusion may be reversed.

In the roller blind device related to the present invention, the upper end of the roller blind sheet and the winding shaft are connected by the second connecting member extending in the width direction of the roller blind, so that the load of the roller blind sheet acts in an equal distribution and does not As in the case of screws, the force acts locally on the winding shaft, thereby preventing the winding shaft from breaking.

In addition, since the upper end of the blind sheet and the winding shaft are connected by joining or fitting the parts without using screws as in the past, the upper end of the blind sheet and the winding shaft can be easily attached and detached without tools. axis. In addition, the width dimension of the opening of the recessed portion to be connected is configured to be larger than the width dimension of the second connecting member, so the second connecting member can be attached and detached from the front side of the opening of the recessed portion to be connected without the need of disassembling the second connecting member. The second connecting part is inclined into an oblique shape, and the workability of installing and disassembling the upper end of the shutter sheet and the winding shaft is good.

The method for installing a roller blind device of the present invention is a method for installing a roller blind device, and is characterized in that it includes: installing the left and right guide rails to the opening body of the building; After the step of installing the body of the opening, the step of installing the roller shutter box on the upper end of the guide rail through the installation member.

In the installation method of the roller blind device of the present invention, after the guide rail is installed on the opening body of the building, the roller shutter box is installed on the upper end of the guide rail through the installation member, so by first fixing the roller shutter box, The position adjustment work of the roller shutter box and the guide rail can be easily performed without restricting the position adjustment work of the guide rail, thereby facilitating the installation work of the roller blind device. Furthermore, when removing the roller blind device, the roller blind device can be easily removed by separately removing the guide rail and the mounting member.

According to the present invention, it is possible to provide a roller blind device that can easily perform mounting and detaching operations.

Description of drawings

Fig. 1 is a perspective view of a partially cutaway sheet roller blind device.

2( a ) is an exploded perspective view showing the mounting relationship between the guide rail and the mounting member, and (b) is a perspective view showing the mounting relationship between the guide rail and the mounting member.

Fig. 3 is an exploded perspective view showing the installation relationship between the roller shutter box and the installation parts

Fig. 4 is a perspective view illustrating installation of the roller shutter box.

Fig. 5 is a front view of the sheet roller blind and a side view of the roller blind sheet (including the winding shaft).

6( a ) and ( b ) are a partial perspective view of the lower part of the roller blind sheet and an enlarged view of the main part of the partial perspective view, respectively.

7(a), (b) are enlarged side views showing main parts in FIG. 6 .

8( a ) and ( b ) are a partially enlarged front view and a partially enlarged side view showing a bag-shaped portion constituting the connected portion, respectively.

Fig. 9 is a cross-sectional view showing the connection structure after the lower part of the shutter sheet is replaced.

Fig. 10 is a cross-sectional view of an upper connection member.

Fig. 11 is a cross-sectional view of a lower connection member.

Fig. 12 is a cross-sectional view of the first fixing member.

Fig. 13 is a sectional view of the winding shaft.

Fig. 14(a) and (b) are the enlarged partial front view and cross-sectional view of the upper end of the rolling shutter sheet respectively.

Fig. 15 is a cross-sectional view of a connecting member.

Fig. 16 is a cross-sectional view of the second fixing member.

17 is a cross-sectional view showing a connected recess forming a winding shaft, and a connecting member and a fixing member are attached to the connected recess.

Fig. 18 is a cross-sectional view showing an upper end portion of the blind sheet and a connecting member attached to the upper end portion of the blind sheet.

Fig. 19 is a front view of the winding shaft.

Fig. 20 is a diagram illustrating attachment of a connecting member to a connected recess.

Fig. 21 is a diagram showing the bottom of the sheet roller blind according to the embodiment.

Fig. 22(a) is a side view of the shutter box, and (b) is a front view showing the internal structure of the shutter box.

Fig. 23(a) is a side view of the flexible joint embedded and fixed on the winding drum, and Fig. 23(b) is a partial sectional front view thereof.

Fig. 24(a) is a partial cross-sectional front view of the lower side with the structure of the flexible joint omitted, and (b) is a lower side without showing the movement of the flexible joint corresponding to the change in the posture of the winding drum. Partial cross-sectional front view.

Fig. 25(a) is a partial cross-sectional front view of the lower side, omitting the movement of the flexible joint corresponding to the posture change of the winding drum, and (b) is omitting the posture change of the winding drum in the axial direction. Partial cross-sectional front view of the underside of the flexible joint in the case.

Fig. 26 is a front view with a part of the winding drum cut away.

Fig. 27 is a partially fragmentary front view showing the mounted state of the electric switch.

FIG. 28 is a plan sectional view of FIG. 27 .

Fig. 29 is a sectional view of the switching machine.

Fig. 30(a), (b) is a left side view and a right side view showing the installation state of the switchgear, respectively.

Figure 31 (a), (b), (c) are respectively the front view, the side view, and the plan view of the switchgear tray.

Figure 32(a), (b) and (c) are the front view, side view and plan view of the mounting sheet respectively.

Explanation of symbols: 1 rolling shutter; 2 rolling shutter box; 3 guide rail; 5 installation component; 11 rolling shutter sheet; 15 connected part;

Detailed ways

The roller blind device according to this embodiment will be described with reference to the drawings. Fig. 1 is a perspective view of a roller blind device with a part cut away. The roller blind device of this embodiment is an electric roller blind. As shown in this figure, a shutter box 2 is provided above an opening of a building (not shown), and a winding shaft 4 is installed inside the shutter box 2, and the roller blind 1 is wound around the winding shaft 4 . The roller blind 1 is formed by deploying the flexible roller blind sheet 11, and is rolled out from the winding shaft 4 by opening and closing the opening and closing machine 30 to drive the winding shaft 4 in the forward and reverse directions, or is wound on the winding shaft 4. On the shaft 4, in this way, the opening and closing operation is performed between the fully closed posture for closing the opening and the fully open posture for opening the opening.

Guide rails 3 for receiving and guiding the left and right end portions of the roller blind 1 are erected on both left and right sides of the opening. In addition, a detection sensor 6 and a detection sensor 7 are respectively provided on the inner side and the outer side of the roller blind 1 near the lower end portion of the guide rail 3 . The detection sensors 6, 7 detect passing objects or obstacles in the vicinity of the roller blind 1, and are composed of photoelectric switches with light projectors and light receivers. In addition, the shutter box 2 and the guide rail 3 are fixed by the mounting member 5 .

Next, the installation structure of the shutter box 2, the guide rail 3, and the installation member 5 will be described in detail with reference to FIGS. 2 to 5 .

The mounting member 5 includes a first frame 5a extending in the longitudinal direction of the guide rail 3 and a second frame 5b extending in the longitudinal direction of the shutter box 2, and is formed by bending a single sheet material at a substantially right angle. The first frame 5a is provided with four through-holes 5e into which bolts are inserted. On the other hand, the second frame 5b is provided with two through-holes 5d through which bolts are inserted, and a columnar protrusion 5c (positioning mechanism) is provided. The protruding portion 5c is for facilitating positional adjustment between the mounting surface 2d of the shutter box 2 and the second frame 5b when the shutter box 2 is placed on the second frame 5b.

The shutter box 2 is formed in an elongated substantially square box shape, and is composed of a box body 2a, a lower surface box 2b covering the lower surface of the shutter box 2, and a lower surface box cover 2c. On the lower end sides of the side plates 2e located on both sides of the roll case 2 in the longitudinal direction of the roll case 2, mounting surfaces 2d standing up from the side plates 2e are provided. The mounting surface 2d is formed perpendicularly to the side panel 2e toward the inside of the roller shutter box 2 . In addition, a hole 2f (positioning mechanism) into which the protrusion 5c is inserted is provided corresponding to the position of the protrusion 5c of the attachment member 5 on the mounting surface 2d. The guide rail 3 is composed of a guide rail body 3a and a rail resin portion 3b.

The first frame 5a of the mounting part 5 arranged on the outer wall of the guide rail 3 from the outside of the guide rail body 3a and the track inner plate 8 configured along the inner wall of the guide rail 3 from the inside of the guide rail body 3a clamp the plate material of the guide rail 3, and pass the bolt T1 and The nut T2, the guide rail 3 and the mounting part 5 are fixed. On the other hand, the installation surface 2d of the shutter box 2 is placed on the second frame 5b of the installation member 5, and the shutter box 2 and the installation member 5 are fixed by bolts T3 and nuts T4.

Next, the installation method of the roller blind device will be described.

First, the left and right rail main bodies 3a are attached to the main body of the building opening. Then, at the upper end of the guide rail body 3a, the track lining plate 8 is arranged on the guide rail body 3a along the inwall of the guide rail body 3a from the inside of the guide rail body 3a, and the first frame 5a of the mounting part 5 is connected with the first frame 5a of the mounting part 5 from the outside of the guide rail body 3a. The rail inner plate 8 faces, and the second frame 5b is arranged on the outer wall of the rail body 3a so as to be placed on the upper end of the rail body 3a. Then, insert the hex bolt T1 into the through hole 5e of the mounting part 5, and fix the three plates of the track inner plate 8, the guide rail body 3a and the first frame 5a of the mounting part 5 through the bolt T1 and the nut T2. In this way, the guide rail 3 and the mounting member 5 are fixed.

Next, the mounting surface 2 d of the roller shutter box 2 is placed on the second frame 5 b of the mounting member 5 fixed to the guide rail 3 . At this time, the position of the shutter box 2 and the second frame 5b is adjusted so that the protrusions 5c provided on the second frame 5b are inserted into the holes 2f provided at both ends of the bottom surface of the box body 2a. Next, the box body 2a and the second frame 5b are fixed using the hexagon bolts T3 and nuts T4.

Then, after the electric wires of the sensors and the like are arranged inside the shutter box 2, the lower box 2b and the lower box cover 2c of the shutter box 2 are mounted on the box body 2a respectively, and they are fixed with bolts or the like. Finally, the internal wiring work of the guide rail main body 3a is performed, and the rail resin part 3b is attached to the guide rail main body 3a. In this way, the roller shutter box 2 and the guide rail 3 are fixed by the mounting part 5 .

In the installation method of the above-mentioned roller blind device, the sequence is as follows: first, the guide rail 3 is installed on the body of the opening of the building, then the installation part 5 is installed on the upper end of the guide rail 3, and finally the roller shutter box 2 is placed on the installation. On the second frame 5b of the part 5, the roller shutter box 2 and the installation part 5 are fixed, but the installation method is not limited to this, for example, it can be: before the guide rail 3 is installed on the body of the opening of the building, the installation The member 5 is attached to the upper end of the guide rail 3, and the guide rail 3 is attached to the body of the opening of the building, and then the shutter box 2 is placed on the second frame 5b of the attachment member 5 to fix them. Or, it can also be: first guide rail 3 is installed on the body of the opening of the building, then the installation part 5 is installed on the shutter box 2, and finally the shutter box 2 and the guide rail 3 with the installation part 5 are installed Part 5 is fixed.

In this way, the first frame 5a of the installation part 5 is fixed on the guide rail 3, and its second frame 5b is fixed on the installation surface 2d of the shutter box 2. Accordingly, the guide rail 3 and the shutter box 2 are obtained by the installation part 5. fixed. Therefore, when installing the roller shutter device, after first installing the guide rail 3 on the body of the opening of the building, fix the guide rail 3 and the first frame 5a of the installation part 5, and then fix the roller shutter box 2 and the first frame 5a of the installation part 5. The second frame 5b, so the position adjustment operation of the guide rail is not limited by first fixing the roller shutter box as in the past, so that the position adjustment operation of the roller shutter box 2 and the guide rail 3 can be easily performed, and the installation operation of the roller shutter device becomes easier. easy.

And, because of such a structure, when disassembling the roller blind device, only by removing the bolt T3 and the nut T4 fixing the roller shutter box 2 and the installation part 5, the bolt T1 and the nut T2 fixing the guide rail 3 and the installation part 5 respectively, The roller blind device can be easily disassembled. Therefore, for example, when the roller shade 1 breaks down and needs to be replaced, the roller shade box 2 can be easily detached from the guide rail 3 and can be easily attached, thereby improving the replacement workability.

In addition, in the roller blind device related to this embodiment, the installation surface 2d of the roller shutter box 2 is formed perpendicularly to the inside of the roller shutter box 2 and the side plate 2e, so that the installation part of the roller shutter box 2 and the installation member 5 , That is, the joint position of the bolt T3 and the nut T4 is inside the roller shutter box 2, so the beautiful appearance of the roller shutter device can be obtained. In addition, the roller shutter box 2 and the installation part 5 are provided with a positioning mechanism for mutual positioning, that is, on the side that contacts the installation surface 2d of the roller shutter box 2 on the second frame 5b of the installation part 5, a Protrusion 5c, corresponding to it, on the installation surface 2d of roller shutter box 2, is provided with the hole 2f that protrusion 5c inserts, therefore, in the installation and fixation work of roller shutter box 2 and installation component 5, when rolling shutter When the mounting surface 2d of the box 2 is placed on the second frame 5b of the mounting member 5, these positions can be easily positioned, and the workability of the roller blind device mounting operation can be improved.

In this embodiment, as a positioning mechanism for positioning the mounting member 5 and the shutter box 2, the protrusions 5c are provided on the second frame 5b of the mounting member 5, and the protrusions are provided on the mounting surface 2d of the shutter housing 2. 5c is inserted into the hole 2f, but not limited thereto. For example, instead of the hole 2f, a concave portion into which the protrusion 5c is inserted may be provided on the mounting surface 2d of the roller shutter box 2 . Alternatively, protrusions may be provided on the mounting surface 2 d facing the roller shutter box 2 , and holes into which the protrusions are inserted may be provided on the second frame 5 b of the mounting member 5 .

Fig. 5 is a front view of the roller blind sheet 11 of the roller blind 1 and a side view of the roller blind sheet 11 (including the winding shaft 4). On the blind sheet 11 that opens and closes the opening, a plurality of aggregates 12 extending in the width direction of the blind sheet 11 are provided at intervals in the height direction. In the illustrated example, pockets 13 extending in the width direction of the blind are formed at intervals in the height direction on the inner surface of the blind sheet 11 , and aggregates 12 are inserted into the pockets 13 . The aggregate 12 at the lower end of the roller blind sheet 11 is built into the bag-shaped portion 130 , and the bag-shaped portion 130 is further built into the bag-shaped bottom 131 . In addition, the cushioning material 132 is wound around the aggregate 12 at the lower end via the pocket 130 so as to cover the peripheral surface of the aggregate 12 from below. The material of the cushioning material 132 is not particularly limited, and may be formed of a known elastic material such as rubber or a predetermined resin material, for example. The upper end of the shutter sheet 11 is connected to the winding shaft 4, and the winding shaft 4 is rotated by the switch machine 30, so that the shutter sheet 11 is wound on the winding shaft 4, the opening is opened, and the winding shaft 4 is rotated. 4. Release the shutter sheet 11 and close the opening. Usually, the winding shaft 4 is built into the shutter box 2 provided above the opening (see FIG. 1 ). Both ends in the width direction of the blind sheet 11 are guided by guide rails 3 provided on both sides of the opening (see FIG. 1 ).

In order to connect the shutter connecting part located on the lower side of the third aggregate 12 counted from the bottom and the upper side connecting member 16 of the rear installation, the surface of the shutter 11 is pre-set to extend in the width direction of the shutter. Connected part 15. The installation location of the connected portion 15 is determined in consideration of the height of the location where damage accidents of the roll blind sheet 11 may occur. In the illustrated example, the connected part 15 is provided at the lower part of the third aggregate, but it is needless to say that the connected part 15 is provided depending on the place where the roller blind device is installed, the conditions of use, or the spacing between the aggregates 12 and other conditions. The location is not limited to this. In addition, in the figure, the connected portion 15 is attached to the inner surface of the roll blind sheet 11 , but the connected portion may be attached to the outer surface of the roll blind sheet 11 . For normal use, it can be considered that it is sufficient to provide one connected portion on one side of the roller blind sheet 11. However, this embodiment does not exclude the provision of multiple to be connected. In addition, although the roller blind sheet 11 provided with the aggregate 12 was shown, this embodiment is also applicable to the roller blind sheet which does not have an aggregate.

The connected portion 15 has an elongated pocket portion 150 extending in the width direction of the shutter sheet 11 . As shown in FIG. 6 , the connected portion 15 has a strip-shaped rolling sheet portion 151 that is short in the height direction of the rolling sheet 11 and extends in the width direction of the rolling sheet 11. The upper end of the rolling sheet portion 151 One side is attached to the blind sheet 11 , and a pocket portion 150 is formed on the lower end side of the blind sheet portion 151 . A preferred manner is that the upper end side of the roller blind sheet part 151 is welded or/and sewn on the roller blind sheet 11 . As one of the preferred modes, the bag-shaped portion 150 is configured as follows: the rolling blind sheet having a desired vertical width and a horizontal width extending in the width direction of the rolling blind sheet is bent in the longitudinal direction, and welded or/and seamed . In this case, as shown in the left diagram of FIG. 7 and FIG. 8 , the shutter sheet portion 151 is double-layered from the bent portion.

As one of the preferred forms, the shaft portion 152 is preliminarily inserted into the bag-like portion 150, and in the state where the shaft portion 152 is inserted into the bag-like portion 150, the longitudinal direction of the bag-like portion 150 is sealed by a sealing device such as a stapler 153. At both ends, the shaft portion 152 is housed in the pocket portion 150 . In addition, as another form, only the bag-like portion 150 without the shaft portion 152 may be pre-installed on the roll-up sheet 11, and thereafter (for example, when replacing the lower portion of the roll-up sheet), the shaft portion 152 may be inserted into the bag-like portion. . As one of the preferred forms, the shaft portion 152 has a circular cross-section, however, the cross-sectional shape of the shaft portion 152 is not limited to a circular shape. The shaft portion 152 may be a single long member spanning the entire width of the blind sheet, or may be a form in which a plurality of long members divided into a plurality in the longitudinal direction are housed in the bag-shaped portion 150 . In addition, one form of the shaft portion 152 is formed of resin, but the material constituting the shaft portion 152 is not limited to resin.

When the lower portion of the roll sheet 11 is damaged or broken, the roll sheet 11 is cut horizontally in the width direction at a portion close to the connected portion 15 . As one of the forms, the blind sheet 11 is cut at a position close to the attachment location of the connected portion 15 and the blind sheet 11 . In the figure, the cutting line is indicated by C. The lower portion B of the roll sheet 11 constitutes a part to be cut off from the upper portion A, and a replacement roll sheet 110 having substantially the same structure as the lower portion B of the roll sheet 11 is used. After cutting the lower portion B of the roll blind sheet 11, the pocket portion 150 and the shaft portion 152 of the connected portion 15 become the lower portion of the roll blind sheet 11, and the upper connecting member 16 is connected to the pocket portion of the connected portion 15. 150 and shaft portion 152. In the case where the shaft portion 152 is not inserted into the pocket portion 150 of the connected portion 15 in advance, before the lower end portion of the shutter sheet 11 is connected to the upper connecting member 16, the shaft portion 152 is inserted into the pocket portion 150, if If necessary, both ends in the longitudinal direction of the bag-shaped portion 150 are sealed with a sealing device such as a stapler 153 .

The right view of FIG. 7 shows another embodiment of the connected portion 15 , in which the pocket 150 for inserting the shaft portion 152 and extending in the width direction of the blind sheet 11 is directly provided on the blind sheet 11 . Cutting of the roll blind sheet 11 is performed horizontally along the cutting line C. As shown in FIG.

10 to 12 show a long connecting part (first connecting part) extending in the width direction of the rolling blind for replacing the lower part of the rolling blind. The long connecting part consists of an upper connecting part 16 and a lower connecting part 17. and the first fixing member 18 are composed of three parts. The upper end portion of the upper connecting member 16 is connected to the connected portion 15 of the lower end portion of the roller blind sheet 11 , and the lower end portion of the lower connecting member 17 is connected to the upper end portion of the replacement roller blind sheet 110 . The lower connecting member 17 can be temporarily hung on the upper connecting member 16 from the front, and in the state where the lower connecting member 17 is hung on the upper connecting member 16, the first fixing member 18 can be pressed into the upper side from the front. The space formed between the connection member 16 and the lower connection member 17 fixes the upper connection member 16 and the lower connection member 17, and connects the blind sheet cut at the lower part and the replacement blind sheet 110. As one of the preferred manners, each long connecting part 16, 17, 18 is constructed of an aluminum profile, but the material of each connecting part is not limited thereto.

FIG. 10 is a cross-sectional view of the upper connecting member 16 , and a shutter sheet connecting portion for connecting the connected portion 15 is formed on the upper side of the upper connecting member 16 . The roller blind sheet connecting portion has a cross-section formed by the opposed side panels 160, 161 and the bottom panel 162, which is substantially U-shaped. A groove portion 163 opening upward is formed between the edge edges of the portion. The size of the groove portion 163 is larger than the thickness of the shutter sheet 11 and even the thickness of the shutter sheet portion 151 of the connected portion 15, and smaller than the diameter of the shaft portion 152 of the bag-shaped portion 150 that is inserted into the connected portion 15. . The space formed by the opposed side panels 160, 161 and the bottom panel 162 forms the receiving space 164 of the bag-shaped part 150 and the shaft part 152 of the connected part 15, and the longitudinal direction end of the upper connecting part 16 is in the roller blind. The bag-shaped portion 150 and the shaft portion 152 of the connected portion 15 are slid in the width direction of the sheet, and inserted into the storage space 164 . The lower end side of the side panel 160 is extended downward to form an extension side panel 165 , and at the middle part of the extension side panel 165 , it is spaced apart from the bottom panel 162 in an opposing shape, and a support panel 166 is extended to form a support piece 166 . The support piece 166 is formed in a segment shape, and a fixing groove 166a is formed on the base end side (the extension side piece 165 side). Fitting protrusions 162a are formed on the lower surface of the bottom sheet 162 of the shutter sheet connecting portion.

11 is a cross-sectional view of the lower connecting member 17. On the lower side of the lower connecting member 17, a connected portion (consisting of a bag-shaped portion 500 and a shaft portion 520) for connecting the upper end of the roller blind sheet 110 for replacement is formed. ) of the roller blind sheet connection. A pocket portion 500 is formed at an upper end portion of the replacement roller blind sheet 110 , and a shaft portion 520 is inserted into the pocket portion 500 . The blind sheet connecting portion has a substantially U-shaped cross-section composed of the opposing side pieces 170, 171 and the top piece 172, and the lower ends of the opposing side pieces 170, 171 are bent in a direction approaching each other. A groove portion 173 opening downward is formed between end edges of the bent portion. The size of the groove portion 173 is larger than the thickness of the replacement roller blind sheet 110 and smaller than the diameter of the shaft portion 520 inserted into the pocket 500 of the connected portion formed on the upper end of the replacement roller blind sheet 110 . small size. The space formed by the opposed side panels 170, 171 and the upper panel 172 forms the receiving space 174 of the bag-shaped part 500 and the shaft part 520 of the connected part. The shaft portion 520 of the bag-shaped portion 500 of the connection portion slides in the width direction of the blind sheet and is inserted into the receiving space 174 . The upper end side of the side piece 171 is extended upwards to form a protruding side piece 175 , and the upper end of the protruding side piece 175 is extended to form a fixed piece 176 spaced apart from the upper piece 172 . The fixing portion 176a is formed by bending the tip of the fixing piece 176 downward, and on the upper surface of the fixing piece 176, a fitting protrusion 176b is formed.

12 shows the first fixing member. The first fixing member 18 has a substantially U-shaped cross-section composed of an upper piece 180, a lower piece 181, and a side piece 182 connecting the base ends of the upper and lower pieces. Fitting recesses 180a, 181a are formed on the upper surface of the upper piece 180 and the lower surface of the lower piece 181, respectively, and inclined guide portions 180b, 181b are formed on the tip sides of the fitting recesses 180a, 181a, respectively. The height dimension of the first fixing member 18 (the dimension between the upper surface of the upper piece 180 and the lower surface of the lower piece 181 ) and the upper connecting member 16 in the state where the lower connecting member 17 is temporarily suspended on the upper connecting member 16 The dimensions between the bottom surface of the base plate 162 and the top surface of the fixing piece 176 of the lower connecting member 17 are approximately the same, so that the first fixing member 18 can be fitted on the lower surface and the lower side of the bottom plate 162 of the upper connecting member 16 from the front. The space between the upper surfaces of the fixing pieces 176 of the connecting member 17. The upper piece 180 and the lower piece 181 of the first fixing member 18 enter the space through the guide portions 180b, 181b at the leading ends, and the fitting recesses 180a, 181a are respectively connected to the fitting protrusions 162a on the bottom of the bottom piece 162 and the upper surface of the fixing piece 176. The fitting projections 176b of the first fixing member 18 are fitted together, the first fixing member 18 is prevented from falling off, and the upper and lower connecting members 16, 17 are fixed.

Fig. 9 is a diagram showing a connection portion after the roller blind sheet is replaced. The bag-shaped part 150 and the shaft part 152 of the connected part 15 are loaded into the receiving space 164 of the upper side connecting part 16, and the upper end of the roller blind sheet 110 for replacement is inserted into the receiving space 174 of the lower connecting part 17. The pocket portion 500 and the shaft portion 520. The upper connection member 16 and the lower connection member 17 are joined by the support piece 166 of the upper connection member 16 and the fixing piece 176 of the lower connection member 17 . The first fixing member 18 is pushed into the space formed between the upper surface of the fixing piece 176 and the lower surface of the bottom sheet 162 of the roller blind connecting part of the upper side connecting member 16, and the upper pieces of the first fixing member 18 are respectively embedded and joined. The fitting recess 180a formed on the upper surface of 180 and the fitting protrusion 162a formed on the lower surface of the bottom plate 162, the fitting recess 181a formed on the lower surface of the lower plate 181 of the first fixing member 18 and the upper surface of the fixing piece 176 This joint state is fixed by the fitting protrusion 176b formed on it. In addition, the lower end portion 165a of the protruding side panel 165 of the upper connecting member 16 is connected to the upper portion of the side panel 170 of the lower connecting member 17 . In Fig. 8, in the state that three long connecting parts 16, 17, 18 are fixed and integrated, by installing the cover body 19 at the left and right ends in the width direction of the shutter sheet, it is prevented that the long connecting parts are in the left and right direction (longitudinal direction). ) is misplaced. As one form, the cover body 19 is fixed by screws 190, however, the cover body 19 may be fixed by other methods, or a method other than the cover body may be used to prevent misalignment of connecting parts.

One or more of the long connecting members 16, 17, 18 may be divided in the longitudinal direction (the width direction of the roller blind sheet). By dividing each member in the longitudinal direction, the connecting member and the roller blind sheet can be easily connected in a space-saving manner. In the case of dividing a plurality of long connecting members 16, 17, 18 in the longitudinal direction, as one of the preferable forms, they may be divided into different stages in the height direction. By making the divided portion discontinuous in the height direction, even in the case of dividing the long connection member, it is possible to prevent the strength of the entire roller blind sheet from being lowered.

The partial replacement method of the roller blind is explained. The connected portion 15 for connecting the blind connecting portion of the upper connecting member 16 of the aftermarket is provided in advance on the surface of the blind 11 . When opening and closing a normal roller blind, the connected portion 15 does not become an obstacle to the opening and closing operation. When the lower portion of the blind sheet 11 is damaged, the blind sheet 11 is cut in the horizontal direction at a portion C close to the connected portion 15, and the lower portion of the blind sheet including the damaged portion is removed.

Next, the connected portion 15 located at the lower end of the blind sheet 11 is connected to the blind connecting portion of the upper connecting member 16 . The connection of the two parts is performed by sliding the pocket part 150 and the shaft part 152 from the side of the upper connection part 16 into the accommodation space 164 . Since the connected part 15 provided on the blind sheet 11 is connected to the blind sheet connecting part (pocket structure) integrally formed from one part, even if a conflict aggravates the connection between the connected part 15 and the upper side, In the case of the blind sheet connection part of the component 16, the opposed side pieces 160, 161 are opened, the groove part 163 is enlarged, and the connected part 15 will not come out from the blind sheet connection part, and there is a sufficient thickness of the blind sheet. Tensile Strength.

In the case that the shaft portion 152 is not preliminarily loaded into the bag-shaped portion 150, the shaft portion 152 is loaded before the blind sheet is cut or after the blind sheet is cut, and before the connected portion 15 and the upper connecting member 16 are connected. inside the pocket 150 .

Next, the lower connection member 17 to which the replacement roller blind sheet 110 is connected is hung from the front on the upper connection member 16 . In the illustrated example, the fixing piece 176 of the lower connecting member 17 is engaged with the supporting piece 166 of the upper connecting member 16 to temporarily suspend the lower connecting member 17 from the upper connecting member 16 . In this state, since the fixing portion 176 a of the lower connecting member 17 is engaged in the fixing groove 166 a of the support piece 166 of the upper connecting member 16 , the lower connecting member 17 does not slip off from the upper connecting member 16 . The replacement roller blind sheet 110 has substantially the same structure as the cut and removed lower portion of the roller blind sheet. Specifically, it has the same height dimension and width dimension as the lower part of the shutter sheet that was cut and removed. As shown in FIG. Fit the bottom. Since the connected part provided on the blind sheet 110 is connected to the connecting part (pocket structure) integrally formed from one part, even if the conflict aggravates the connection between the connected part and the lower connecting member 17, In the case of the blind part, the opposed side panels 170, 171 are opened, the groove part 173 is enlarged, and the connected part does not come out from the blind sheet connection part, and has sufficient blind sheet tensile strength.

Then, the first fixing member 18 is pushed into the space formed between the upper connecting member 16 and the lower connecting member 17 from the front, and is connected to the upper connecting member 16 by fixing the upper connecting member 16 and the lower connecting member 17. The upper roller blind sheet 11 and the replacement roller blind sheet 110 connected to the lower connecting member 17 are integrated to form the roller blind sheet of the roller blind. In addition, misalignment prevention mechanisms are provided at both ends of the connection members 16, 17, and 18 as necessary.

Next, the hanging and fixing structure of the roller blind sheet 11 will be described with reference to FIGS. 13 to 20 .

As shown in FIG. 13 , the upper end of the shutter sheet 11 is connected to a connected portion 27 formed on the circumferential surface of the winding shaft 4 using a second connecting member 25 and a second fixing member 26 . A pocket portion 140 extending in the width direction is formed at the upper end portion of the roll blind sheet 11 . In addition, as shown in FIG. 14 , the bag-shaped portion 140 is formed by bending the upper end portion of the blind sheet and performing welding or sewing. A shaft portion 142 extending in the width direction is accommodated in the pocket portion 140 . As one form, in the state where the shaft portion 142 is inserted into the bag-like portion 140, the longitudinal ends of the bag-like portion 140 are sealed with a sealing device 143 such as a stapler, and the shaft portion 142 is inserted into the bag-like portion 140. . The upper end portion of the roller blind sheet 11 is connected to the second connecting member 25 through the pocket portion 140 and the shaft portion 142 . As one form, the winding shaft 4, the second connection member 25, and the second fixing member 26 are made of aluminum extrusions, but the materials of the respective members are not limited thereto.

15 is a cross-sectional view of the second connecting member 25 as a long member extending in the width direction of the roll blind sheet. The second connecting member 25 has a substantially U-shaped shape formed by opposing side pieces 250, 251 and a base sheet 252. Section of the shape. One side panel 250 is a shorter side than the other side panel 251, and by making the tip of the side panel 250 and the portion of the side panel 251 opposite to the tip of the side panel 250 protrude in a direction close to each other, the protrusions 253, 253 are formed. 254 , an opening-shaped groove 255 is formed between the edge edges of the protrusions 253 , 254 . The size of the groove portion 255 is larger than the thickness of the blind sheet 11 and smaller than the diameter of the shaft portion 142 fitted in the pocket 140 formed at the upper end of the blind sheet 11 . The space formed by the opposed side panels 250, 251 and the base sheet 252 forms a receiving space 256 for the bag-like portion 140 and the shaft portion 142, so that the bag-like portion 140 and the shaft portion 142 can be extended from the longitudinal direction of the second connecting member 25. The end portion of the rolling shutter slides in the width direction of the roller blind, and is inserted into the receiving space 256 .

From the protruding portion 254 of the side piece 251, the tip portion constitutes a first fixing piece 251a. In addition, a second fixing piece 257 having an L-shaped cross section is formed at the base end portion of the side piece 251 . The second fixing piece 257 is composed of a first piece 257a formed to protrude from one end of the base piece 252 and a second piece 257b formed to protrude from the end of the first piece 257a parallel to the side piece 251 . On the outer surface of the base sheet 252, a fitting protrusion 252a is formed.

16 is a cross-sectional view of a second fixing member as a long member protruding in the longitudinal direction of the winding shaft 4. The second fixing member 26 has opposing side pieces 260, 261, connecting side pieces 260, 261. The substrate 262 on the base end side has a substantially U-shaped cross section. Fitting recesses 260a, 261a are formed on the outer surfaces of the side pieces 260, 261, respectively, and inclined guide portions 260b, 261b are formed on the tip sides of the fitting recesses 260a, 261a, respectively.

On the circumferential surface of the winding shaft 4, a connected concave portion 27 is formed. The connected concave portion 27 protrudes in the longitudinal direction of the winding shaft 4 . The connected concave portion 27 has side portions 270 and 271 and a bottom portion 272 facing each other across the opening. The side portion 270 is located on the delivery side of the roll sheet 11, and the opening edge (the corner where the side portion 270 contacts the circumferential surface of the winding shaft 4) on the side portion 270 forms a curved surface 270a to which the roll sheet 11 is connected. The bottom portion 272 is formed in a stepped shape in the width direction of the opening from the first bottom portion 272a on the side portion 270 side and the second bottom portion 272b on the side portion 271 side. The first bottom 272a is located on the opening side (circumferential side of the winding shaft) than the second bottom 272b, and the depth of the recess is shallower than that of the second bottom 272b. A first fixing groove 273 is formed at an end portion of the first bottom portion 272 a on the side portion 270 side. The other end of the first bottom portion 272a protrudes toward the side portion 271, and a second fixing groove 275 is formed between the protruding portion 274 and the second bottom portion 272b. Fitting protrusions 271 a are formed on the surface of the side portion 271 .

Here, the dimensions of the components constituting the suspension fixing structure will be described. Assume that the width dimension of the second connecting member 25 is H1 (dimension from the outer surface of the base sheet 252 to the tip of the first fixing piece 251a of the side panel 251), and the predetermined dimension is W1 (from the outer surface of the side panel 250 to the second The size of the outer surface of the second piece 257b of the fixing piece 257), W2 (the size from the outer surface of the side piece 250 to the outer surface of the side piece 251), the width dimension of the second fixing member 26 (the outer surface of the side piece 260 The dimension between the outer surface of the side panel 261, i.e. the length dimension of the substrate 262) is H2, the predetermined dimension is W3 (the length dimension of the side panels 260, 261), and the opening width dimension of the connected recess 27 is H3 (the side panel 262). The size between the edge 270a of the sheet 270 and the edge of the side sheet 271).

The method of fixing the suspension, that is, the method of connecting the second connecting member 25 mounted on the upper end of the roller blind sheet and the winding shaft 4 will be described. Make the tip side of the side pieces 250, 251 on the upper side, and the base piece 252 on the lower side, and insert the second connecting member 25 connected to the upper end of the roller blind sheet 11 from the side of the side piece 251 forming the fixing pieces 251a, 257. connected to the recess 27. Insert the second connecting member 25 into the lower side of the connected recess 27, and move it upward (in the direction of sending out the blind sheet), so that the first fixing piece 251a and the second fixing piece 257 are respectively engaged in the first fixing groove. 273. In the second fixing groove 275. The opening width H3 of the connected recess 27 is larger than the width H1 of the second connecting member 25, and the second connecting member 25 can be easily inserted into the connected recess 27 from the front of the opening of the connected recess 27. . With the second connecting member 25 engaged in the connected concave portion 27 , the blind sheet connected to the second connecting member is temporarily held on the winding shaft 4 . Therefore, the blind sheet 11 on the winding shaft 4 can be attached by one person's operation.

In the state where the second connecting member 25 is engaged with the connected concave portion 27 , the outer surface of the side panel 251 of the second connecting member 25 is connected to the first bottom 272 a of the connected concave portion 27 . In addition, between the protruding portions 253, 254 formed opposite to each other on the side pieces 250, 251 and the side piece 270 connected to the recessed portion 27, there is formed for feeding out from the protruding portion 253, 254 along the circumferential surface of the winding shaft. The space S1 of the roller blind sheet 11 sent out by the groove part 255 formed between 254. The rolled blind sheet 11 sent out is guided by the curved surface 270 a formed at the opening edge of the side sheet 270 . In addition, the predetermined dimension W1 and the predetermined dimension W2 of the second connection member 25 correspond to the depth of the bottom 272b and the depth of the bottom 272a, respectively, and the side surface 250 of the second connection member 25 extends substantially on the same plane as the circumferential surface of the winding shaft 4. out, the winding of the shutter sheet 11 will not be disturbed.

Next, the second fixing member 26 is pushed into the space S2 formed between the connected concave portion 27 and the second connecting member 25 engaged in the connected concave portion 27 from the front. More specifically, the side pieces 260, 261 of the second fixing member 26 are inserted into the space S2 formed between the outer surface of the substrate 252 of the second connecting member 25 and the side portion 271 of the connected recess 27 from the tip side. . The width dimension H2 of the second fixing member 26 is approximately the same as the width dimension (H3-H1) of the space S2. By inserting the second fixing member 26 into the space S2, the fixing pieces 251a, 257 of the second connecting member 25 are connected from the recessed portion. The fixing grooves 273 and 275 of the second connecting member 27 disengage and release the engagement state of the second connecting member 25 and the connected concave portion 27 for restriction. The predetermined dimension W3 of the second fixing member 26 is approximately equal to the depth of the bottom 272b, so that the substrate 262 of the second fixing member 26 protrudes from the peripheral surface of the winding shaft 4 and disturbs the winding. The side pieces 260, 261 of the second fixing member 26 enter the space S2 through the guide portions 260b, 261b at the leading ends, and the fitting recesses 260a, 261a respectively fit into the fitting protrusions 252a, 252a, The fitting protrusion 271 a of the side portion 271 of the connected recess 27 prevents the second fixing member 26 from falling off, and the upper and lower connecting members 26 , 27 are fixed. In the illustrated example, as one of the preferred modes, the second fixing member 26 represents a part embedded in the space formed by the second connecting member 25 and the connected recess 27, but if the second fixing member 26 does not escape from the space S2 In terms of form installation, the second fixing member 26 is not necessarily limited to a member that fits into or seals the space. The outer surface of the substrate 262 of the second fixing member 26 is formed substantially the same as the circumferential surface of the winding shaft 4, and constitutes the winding surface. A substrate 262 of 26 is held in the space S2.

In order to bear the load evenly, the second connecting member 25, the second fixing member 26, and the connected recess 27, which are long members or parts thereof, are preferably one member or part protruding in the longitudinal direction, but the present embodiment is not limited to Such parts, for example, can also divide the second connecting part 25 or the connected concave part 27 into two or three parts in the longitudinal direction (the width direction of the rolling shutter sheet, the length direction of the winding shaft), and make them continuous ground configuration. In addition, the elongated second fixing member 26 may be divided into a plurality of pieces in the longitudinal direction, and the second fixing members 26 may be attached at intervals at intervals. In addition, although the hanging fixing method has been mainly described, the upper end portion of the blind sheet can be detached from the winding shaft 4 favorably also in the hanging fixing structure of the present embodiment. That is, in the configuration shown in the embodiment, first, the second fixing member 26 is detached, and the engagement of the second connecting member 25 on the connected recess 27 is released by using the space S2 formed by detaching the second fixing member 26, The shutter sheet 11 can be detached from the winding shaft 4 .

As described above, the flexible roll-up sheet 11 is formed in approximately the same shape as the opening of the building, and the pockets 13 are provided at specific intervals on the back side of the flexible roll-up sheet 11, and the aggregates 12 are attached and fixed to the building. In the bag-shaped part 13, the fixed aggregate 12 is attached to the bag-shaped part 130 of the lower end part of the roller blind sheet 11, and the roller blind 1 is formed. However, the structure of the roller blind 1 is not limited to this structure. For example, a plurality of flexible roller blind sheets with a specific height may be sequentially superimposed up and down, and a continuous strip in the left-right direction of the opening of the building may be formed at the overlapped position. pocket and install aggregates.

In the shutter box 2 installed above the opening of the building, the winding shaft 4 is supported by a shaft across the left and right guides 3 and 3, and the hanging side of the rolling shutter 1 is installed on the winding shaft 4. The chain is rotated by the opening and closing machine 30 to drive the winding shaft 4 to wind the roller blind 1 .

However, the storage mode of the roller blind 1 is not limited to the above-mentioned winding method, and it is also possible to fix the hanging side of the roller blind 1 on the lower end plate of the roller shutter box 2 that is positioned above the opening and connects the left and right guide rails 3, The two ends of the aggregate 12 are connected by connecting chains, etc. At the same time, guide rollers are installed at both ends of the aggregate 12, the opening and closing machine is operated, and the roller blind 1 is moved upward through the connecting chain, stored in a folded shape, and the building is opened. For the opening, the folded roller blind 1 is lowered by its own weight along the groove of the guide rail 3 to close the opening of the building.

Next, the lowermost pocket portion 130 of the roll blind sheet 11 will be described.

In the past, with regard to roller blinds, in order to prevent the weight of the roller blind from colliding with the floor surface when closing the opening of the building, making uncomfortable noises, the bottom of the lowermost skeleton is installed along the inside. Cushioning materials are provided on the entire inner peripheral surface of the car to reduce the impact when landing. However, in these members, the bottom part touches the ground together with the cushioning material provided in close contact with its inner peripheral surface. Therefore, every time it touches the ground, the bottom part deforms along with the deformation of the cushioning material. increase, causing the bottom to slump. Compared with the bottom made of flexible parts, the cushioning material made of elastic body is slower to recover from deformation. Therefore, every time it touches the ground, the lower end of the bottom is in a state of pushing against the cushioning material. The frequency of opening and closing operations of the curtains is high, and there is a disadvantage that the bottom part is quickly slack, and it is desired to improve the durability of the bottom part. In addition, since the cushioning material is provided on the entire inner peripheral surface of the bottom, the bottom tends to become thicker depending on the thickness of the cushioning material.

This embodiment adopts the structure shown in FIG. 21 in order to improve the durability of a bottom part in consideration of the above-mentioned conventional problem.

Specifically, at the lowermost end of the flexible roller blind sheet 11 of the roller blind 1, a bag-like portion 130 is formed continuously in the left-right direction of the opening of the building, and stores the aggregate 12 therein. At the lower end of the roller blind 1, a bag-shaped bottom 131 is hung down to overlap with the bag-shaped part 130 for storing aggregates 12 and has approximately the same width as the opening of the building. The bottom 131 passes through the bag-shaped part 130 and houses a The aggregate 12 at the lowest position.

In the roller blind device constructed in this way, if the roller blind 1 is lowered to close the opening of the building, the frame 12 at the lowest position will collide with the ground along the downward trend, but due to the surrounding surface of the frame 12 from below, The cushioning material 132 is wound, so that the cushioning material 132 absorbs the impact at the time of landing, and no uncomfortable sound is generated. Since the bottom 131 is made of a flexible member, it quickly returns to its original shape after landing on the ground to close the lower end of the opening of the building. Since the landing site at the lower end of the bottom 131 is not sealed from the inside by the cushioning material as in the past, the bottom will not be deformed or slumped due to the deformation of the cushioning material every time it hits the ground.

In this way, the flexible roller blind sheet 11 is spread between a plurality of aggregates 12 arranged in parallel up and down at certain intervals to form a roller blind 1, and the left and right ends of the roller blind 1 are guided to be erected on the building. On the guide rails 3 on the left and right sides of the opening, in the roller blind device that closes the opening of the building, the lowermost aggregate 12 is built in the lower end of the roller blind 1, and the bottom 131 is hung down. The circumferential surface of the lowest position of the aggregate 12 is provided with a cushioning material 132, so that every time the cushioning material 132 pushes the lower end of the bottom 131 to deform, the bottom 131 will not be slumped, and the durability of the bottom 131 can be improved. sex. In addition, since the buffer material is provided on the peripheral surface of the lowermost frame 12, when the opening of the building is closed, when the roller blind 1 is lowered and the lowermost frame 12 touches the ground, it will not An uncomfortable sound occurs. In addition, since the cushioning material 132 is provided on the aggregate 12, the bottom 131 does not become unnecessarily thick as in the past.

In the above description, the drive structure using the winding shaft 4 is used for winding and rewinding the roll screen 1 (blind sheet 11 ), but a drive structure using a winding drum may be used instead of the wind shaft 4 . Next, the driving structure of the winding drum will be described with reference to FIGS. 22 to 25 .

As mentioned above, the roller blind device related to this embodiment is constructed in such a way that the roller shutter box 2 is installed between the upper parts of the guide rails 3, 3 erected on both sides of the opening of the building, and the roller is equipped with a flexible The winding drum 9 of the roller blind 1 made of flexible roller shutter sheet material is loaded into the roller shutter box 2, and at the same time, on the driving side bracket 31 forming one side of the above-mentioned roller shutter box 2, the switch 30 faces The inside of the winding drum 9 is fixed coaxially therewith, and the forward and reverse rotation of the opening and closing machine 30 winds up and down the roller blind 1 to open and close the opening of the building.

The above-mentioned winding drum 9 has such a structure that in the hollow cylindrical drum body 9a made of synthetic resin, aluminum material, etc., the neutrons 33, 33 with the driven shaft 32 mounted on the fixed shaft are embedded at a specific interval, The outer end of the driven shaft 32 is supported on the driven side bracket 34, and at the same time, the output shaft 30a of the above-mentioned switching machine 30 is coaxially connected to a shaft embedded along the inner peripheral wall of the winding drum 9. On the flexible joint 35, the coiled screws 36, 36, . 37 is a limit switch for detecting the rotation speed of the driven shaft 32 on the outside of the driven side bracket 34 .

The above-mentioned flexible joint 35 is structured like this: on one surface side of the fixed flange portion 38 embedded along the inner peripheral wall of the winding drum 9, bolts 39b, 39b with hexagonal holes . . . The connecting flange portion 39 of the cylindrical portion 39a is inserted between the opposing inner surfaces 40, 41 of the respective flange portions 38, 39, and the driving hub 42 integrally extending in the circumferential direction is provided with a flange 42a. The driving hub 42 is coaxially spline-fitted to the output shaft 30a of the switching machine 30, and the winding drum 9 is driven to rotate forward and reverse.

In addition, on the flange 42a of the above-mentioned driving hub 42, the through holes 44, 44... that are embedded in the barrel-shaped compression coil springs 43, 43... are penetrated in the circumferential direction, and are connected with the through holes 44, 44. The fixing bolts and nuts 45, 45 ... with the same opening positions of ... are installed and fixed through the barrel-shaped compression coil springs 43, 43 ... between the above-mentioned flanges 38, 39. The springing force of the barrel-shaped compression coil elastic machine 43,43... acting between 38,39 keeps the above-mentioned drive hub 42 at a certain position shown in Figure 23 (b), and the winding drum 9 and the opening and closing machine 30 The output shaft 30 a has a coaxial connection structure through a flexible joint 35 . In addition, 46 is a gap formed in the circumferential direction between the respective inner peripheral surfaces of the fixing flange portion 38 and the connecting flange portion 39 and the outer peripheral surface of the drive hub.

In the above-mentioned structure, in order to open the opening of the building, if the up switch (not shown) is pressed, the switch machine 30 is driven to rotate in the winding direction of the roller blind 1, and the rotational driving force of the output shaft 30a can be passed. The deflection joint 35 is transmitted to the winding drum 9, and the roller blind 1 rising along the guide rails 3 and 3 is wound on the winding drum 9. At the time when the limit switch 37 operates, the rotation drive of the switch 30 is stopped. .

In addition, when the unillustrated descending switch is pressed, the winding drum 9 that wraps the above-mentioned roller blind 1 is driven by the reverse rotation of the opening and closing machine 30, rotates and drives in the rewinding direction, and descends along the guide rails 3, 3. When the roller blind 1 fully closes the opening of the building, the limit switch 37 operates to stop the reverse rotation drive of the switch 30 .

During the opening and closing driving process of this roller blind device, the weight of the rotating winding drum 9 or the roller blind 1 wound on it acts on the output shaft 30a of the opening and closing machine 30 as a flexible load, sometimes during the rotational driving. On the drum body 9a of the winding drum 9, the offset occurs in the circumferential direction or the axis direction, but the drive hub 42, which is splined and fitted on the output shaft 30a, is fixed on the side of the drum body 9a. The flange part 38 and the connecting flange part 39, as shown in Figure 24 (b) and Figure 25 (a), within the allowable range of the gap 46, when the connecting posture changes relatively, the circumference of the rotating winding drum 9 The impact force on the output shaft 30a caused by the inertial load in the direction and the flexible load on the output shaft 30a caused by the weight of the winding drum 9 and the roller blind 1, the barrel-shaped compression coil elastic machine 43 of the flexible joint 35 , 43... are properly absorbed, huge stress will not be applied to the output shaft 30a, and, as shown in Fig. 25(b), even for windings that rotate while bearing the moving force in the opposite direction of the shaft When the drum 9 is combined with the changes in the connection postures of Fig. 24(b) and Fig. 25(a), the spline fit of the drive hub 42 and the flexible joint 35 can work together to hold the output shaft. The smooth rotational driving state of the output shaft 30a can prevent problems before they occur, and prevent deformation and damage of the casing material of the output shaft 30a, its bearing part, or the surrounding parts.

In this way, one side of the hollow cylindrical winding drum 9 is supported on the driven side bracket 34 with a shaft, and the opening end of the other side of the winding drum 9 faces the opening and closing of the inside thereof. The machine is coaxially fixed on the driving side bracket 31, and at the same time, a flexible joint 35 is coaxially embedded and fixed along the inner peripheral wall of the above-mentioned winding drum 9, and the output shaft 30a of the opening and closing machine 30 connected to it The winding drum 9 is driven in forward and reverse rotation. Due to this structure, the sum of the weight of the winding drum 9 and the roller blind 1 wound on it will not act on the output shaft 30a of the opening and closing machine 30 as a bending load. Through the flexible joint 35 installed therebetween, the posture change of the rotationally driven winding drum 9 can be easily absorbed, the huge stress on the output shaft 30a of the switch 30 can be swept away, and the smooth winding drum 9 can be maintained. In the rotating driving state, it can prevent problems before they happen, prevent the output shaft and its bearing part or the deformation and damage of the shell material of the surrounding parts, and can maintain the long-term smooth opening and closing operation of the roller blind.

Next, another driving structure of the winding shaft in this embodiment will be described based on FIGS. 26 to 32 .

The upper edge of the roller blind 1 is integrally connected to the outer peripheral surface (outer side) of the winding drum 10, and the winding shaft is rotatably supported by the roller shutter box 2 arranged above the opening of the building. And, the roller blind 1 is rolled out from the winding drum 10 through the forward and reverse rotation of the winding drum 10, or, by being wound on the winding drum 10, the left and right sides are respectively arranged upright on both sides of the opening. It moves up and down while being guided by a pair of guide rails 3 in the part, and becomes the setting for opening and closing the opening part. In addition, since the attachment structure of the shutter box 2 and the guide rail 3 is the same as above, description is abbreviate|omitted.

The winding drum 10 is formed in an elongated cylindrical shape, and connecting plates 62 having mounting pieces 62a formed on outer diameter portions are respectively fixed and attached to both ends of the inner peripheral surface by using screws 62b. The connecting plate 62 has a hub hole 62c penetratingly formed at the central portion (inner diameter side), and the connecting plate hub hole 62c on the one end side protrudes from the electric switch 30 built in the one end side of the winding drum 10. The switchgear output shaft 30a is set so as to be fitted in a state in which the rotation of the switch is stopped in the shaft rotation direction. On the other hand, to the hub hole 62c of the connection plate 62 at the other end side, one end portion of a support shaft 63 is engaged in a rotationally stopped state in the shaft rotation direction, and the other end portion of the support shaft 63 is free through a bearing 64a. It is rotatably supported on the mounting bracket 64 constituting the other end side of the roller blind 2 , so that the other end side of the winding drum 10 is rotatably supported on the mounting bracket 64 .

Next, the switching machine 30 is constituted by an electric motor 65 on one end side and a speed reducer (reduction device) R coupled to a motor output shaft 65 a protruding from the other end of the electric motor 65 . The aforementioned reducer R is structured such that the first, second, and third intermediate gears 66a, 66b are rotatably supported by bearings 66d on the reducer case 66 integrally fixed to the other end edge portion of the motor case 65b. , 66c. And, the first intermediate gear 66a meshes with the motor output shaft 65a, and the second intermediate gear 66b, which is the gear shaft of the first intermediate gear 66a, meshes with the third intermediate gear 66c. In addition, the gear of the third intermediate gear 66c The shaft becomes the switchgear output shaft 30a, and is protrudingly provided from the front-end surface part 66e of the reduction gear casing 66. As shown in FIG. In this way, the driving force of the electric motor 65 is decelerated through the gears 66a, 66b, 66c of the reducer R, and the output shaft 30a of the switchgear protrudes from the front end surface 66e of the reducer housing. The output shaft 30a of the switch machine is engaged with the hub hole 62c of the connecting plate at one end side in a rotation stop shape, so that the power transmission part of the switch machine 30 and the winding drum 10 is constituted, and becomes the driving force of the electric switch machine 30. Transmission to the setting of the winding drum 10 .

Moreover, the front-end surface part 66e of the said reduction gear case 66 is formed in substantially rectangular shape, and the switch bracket 67 is provided integrally with this front-end surface part 66e. That is, the switch bracket 67 is constituted by these parts: a substantially rectangular positioning surface 67b forming a through hole 67a in which the switch output shaft 30a is slidably fitted; A pair of support pieces 67c on the base end side of the switch 30 stop the positioning surface 67b on the front end surface 66e of the reducer casing, and are integrally fixed on the switch 30 by screwing screws 67d at each corner. Further, each support piece 67c is in a state of being separated from the outer peripheral surface of the speed reducer casing 66, and a through-hole 67e to be a later-described pivot support portion is penetrated in a penetrating shape, respectively. In addition, 67f is the reinforcing material attached to the corner|angular part between the positioning surface part 67b of the switchgear bracket 67, and the support piece 67c.

On the other hand, on the mounting bracket 68 constituting one end side of the roller shutter box 2, protruding toward the other end side of the winding drum 10, the base end portions of a pair of front and rear mounting pieces 69 are integrally provided. These mounting pieces 69 is substantially in the shape of a door, and the bottom surfaces 69a thereof are in a state facing each other. In addition, through-holes 69b serving as pivotal support portions are respectively penetratingly provided at the tip end portions of the bottom surfaces 69a, and screws (pivot support shafts) 70 to be described later are fitted and inserted into the respective through-holes 69b from inside. The spacer 69c of the pivot support hole 69d inserted therethrough is set so that the protruding outer end portion of the spacer 69c is fitted into the through hole 67e of the switch bracket support piece 67c.

In addition, the outer diameter formed by the aforementioned pair of mounting pieces 69 is set to be slidably embedded in the barrel of the winding drum 10 , and on the other hand, the inner diameter is such that the electric switch 30 can be slidably embedded in the axial direction. the size of. Moreover, it is set to make the mounting piece 69 slide into the opening and closing machine 30 in the above-mentioned winding drum 10 from the base end side, and the bottom surface 69a of the mounting piece bottom surface 69a is protruded from the inner side and connected to the opening and closing machine 30 that is fixed. On the switch bracket support piece 67c, the protruding outer end of the gasket 69c protruding from the mounting piece 69 side is inserted into the support piece through hole 67e, and inserted in the horizontal direction in the gasket pivot support hole 69d. The support screw 70, thus, constitutes a pivot support. Accordingly, it becomes such a setting that the switch bracket 67 (electric switch 30 ) is pivotally supported on the mounting piece 69 to swing freely up and down, and at the same time, one end of the winding drum 10 passes through the electric switch 30 . , pivotally supported on the mounting bracket 68 for free rotation.

In this way, the electric switch 30 for forward and reverse rotation of the winding drum 10 is housed in the cylinder of the winding drum 10, and the mounting bracket above the opening can be reduced to save space. Moreover, in this structure, the electric switch 30 is not fixedly installed on the mounting bracket 68, and compared with the power transmission part of the winding drum 10, the base end side part is pivotally supported on the mounting bracket 68 so that it can freely swing up and down. On the bracket 68 , on the mounting piece 69 provided so as to extend until entering the cylinder of the winding drum 10 . Therefore, even if a bending moment acts on the winding drum 10, the bending moment is absorbed by the electric switch 30 shaking the mounting piece 69, and does not act on the electric switch 30. Therefore, it is possible to avoid a large load acting on the electric drive. In the case of the switch output shaft 30a of the switch 30 or the reduction gear, the durability of the electric switch 30 and the reliability of the product can be improved.

Furthermore, in this case, since the above-mentioned bending moment is 0 at the pivot support point which becomes the swing fulcrum of the electric switch machine 30, the pivotal support position of the mounting piece 69 for the electric switch machine 30 In the aforementioned embodiment at the portion corresponding to the reduction gear R of the electric switchgear 30, a large load does not act on the first, second, and third intermediate gears 66a, 66b, 66c and the motor output shaft constituting the reduction gear R. 65a, the bearing 64a that shaft supports them, can realize the protection of these parts.

The present invention is not limited to the above-described embodiments, and of course various changes can be added without departing from the gist of the present invention.

Claims (3)

1. a roller blind device is arranged on the peristome body of building, it is characterized in that possessing:

The roller shutter case of harvesting roller shutter;

Accept and guide the guide rail at the both ends of described roller shutter;

Can be installed in the installing component on described roller shutter case and the described guide rail with dismantling respectively;

Be installed in the upper end of described roller shutter, extended second link on the width of described roller shutter;

On the periphery of wireline reel, form the extended recess that is connected on the length direction of wireline reel; With

Second fixed part of strip,

Described roller shutter case is fixed in the upper end of described guide rail by described installing component,

The width dimensions of the described peristome that is connected recess is bigger than the width dimensions of described second link, and simultaneously, described second link forms the shape that can engage, break away from the described recess that is connected,

Be connected under the state that recess engages described second link described, by described second fixed part being inserted in described being connected in the space that forms between recess and described second link, limit described second link and the described releasing that is connected the engagement state between the recess.

2. roller blind device as claimed in claim 1 is characterized in that:

Described roller shutter case and described installing component are fixed together by detent mechanism.

3. roller blind device as claimed in claim 1 is characterized in that:

Described roller shutter is by having flexual roller shutter sheet and constituting in the portion of being connected of stretching out on described roller shutter sheet width of the face setting of described roller shutter sheet;

In described roller shutter sheet, be provided with the described below that is connected the position of portion and partly constitute the cut-out object part;

The described portion that is connected can be connected with the roller shutter sheet with replacing by first link, and the described portion of being connected has size and the shape that does not hinder common roller shutter sheet to open and close.

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