JPH04371691A - Shutter devised into upper and lower parts - Google Patents

Abstract

PURPOSE:To obtain such shutters divided into upper and lower parts having no slack of slats and enabling the shutters to open and shut smoothly. CONSTITUTION:Shutters 11 and 12 diviced into upper and lower parts are so constituted that they can be wound on an upper winding wheel 8 and a lower winding wheel 9. An upper wheel 3 is combined with the upper winding wheel 8, and a lower wheel 4 is provided to the lower winding wheel 9 through an energy accumulation spring 10 providing tensile force for the lower shutter. The upper wheel 3 and the lower wheel 4 are interlocked with a chain 5 and, at the same time, the chain 5 is interlocked with an interlocking section of a seat plate of the lower shutter to interlock both shutters.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shutter that is attached to an opening in a building frame, and particularly to a shutter that is suitable for being attached to the outside of a window or the like.

0002

[Prior Art] Conventionally, plate-type storm doors that are attached to the outside of sash windows, etc., are housed in door pockets with mirror panels, so the door pockets are attached to the outer wall of the building with a considerable thickness, and when the shutters are opened, It wasn't a good look. Particularly in Western-style buildings, door pockets that are attached to the exterior walls have design problems.

In contrast, roll-up shutters using slats designed to be attached to the top of the window are being used. This type of shutter can be made relatively small because the height of the storage part is a roll-up type, and for low-height windows, it can be designed like a window eave, so it takes more space than traditional shutters. It has advantages.

[0004] However, even in the case of a shutter-type storm door installed on a bay window, there is a problem in that the user is forced to stretch his back and put his body forward in order to lower the shutter, forcing him to take an awkward posture. Furthermore, if the storage section is located at a high location that is difficult to reach, there is a problem in that a hook bar or string must be used to open and close the storage section. For this reason, devices that use electric motors to open and close have been developed, but they are expensive and not common. Further, in a high opening, the length of the shutter becomes long, so the winding diameter when stored becomes large, and there is also the problem that the storage portion becomes large.

[0005] As a similar mechanism of such a shutter,
The sink opening/closing door described in Japanese Utility Model Publication No. 46-22702 uses a shutter mechanism divided into two parts. I realized that if I applied this kind of shutter mechanism to a building's shutter, I could raise and lower the upper shutter just by raising and lowering the lower shutter, so I could open and close the shutter by reaching half the height. . However, when this mechanism is applied to a building shutter, since the thickness and length of the shutter are larger than that of a sink, the speed of the chain, which is an interlocking mechanism, and the speed of the shutter depend on changes in the winding diameter on the winding drum or shaft. The difference between the two becomes large and winding becomes impossible. It was also found that since the weight was significantly heavier, a problem occurred in that the lower shutter would become loose.

[0006]

[Problems to be Solved by the Invention] The present invention has been made in view of the above-mentioned circumstances.By dividing the shutter into upper and lower halves, it is possible to easily open and close the shutter, and the slats can be smoothly opened and closed without loosening. The purpose of this invention is to provide a shutter that can be opened and closed.

[0007]

[Means for Solving the Problems] The present invention provides a shutter divided into upper and lower parts, including an upper winding part provided above an opening of a building frame, and a winding mechanism provided in the upper winding part so as to be able to be wound up. An upper shutter, a lower winding part provided below the opening, a lower shutter provided so as to be windable in the lower winding part, a seat plate part of the lower shutter, and an upper winding part. The present invention is characterized in that it has an interlocking member that is interlocked, and a tension applying member that applies tension to the lower shutter in the winding direction.

[0008]

[Operation] According to the present invention, in the upper and lower split shutter, by interlocking the seat plate section of the lower shutter and the upper winding section, the upper and lower shutters can be opened and closed in conjunction with each other, making opening and closing easy. . Furthermore, since it is not always necessary to directly interlock the upper and lower winding shafts, the design of the interlocking mechanism can be varied and the design is easy. Furthermore, by providing a tension applying member that applies tension to the lower shutter, it is possible to prevent the lower shutter from loosening during opening and closing, and to ensure smooth opening and closing.

[0009]

[Embodiment] FIGS. 1 to 3 are for explaining the outline of one embodiment of the present invention, and FIG. 1 is an overall schematic configuration diagram;
FIG. 2 is an enlarged view of the main parts, and FIG. 3 is a side view of the winding section with a part of the shutter cut away. In the figure, 1 is an upper fixed shaft, 2 is a lower rotating shaft, 3 is an upper wheel, 4 is a lower wheel, 5 is a chain, 6 and 7 are guide rollers, 8 is an upper winding wheel, 9 is a lower winding wheel, 10 is a storage spring, 11 is an upper shutter, 12 is a lower shutter, 13
14 and 15 are connecting members, 16 and 17 are brackets, and 18 is a bearing.

The upper shutter 11 and the lower shutter 12 have terminal ends fixed to the upper winding wheel 8 and the lower winding wheel 9, respectively, and are guided by a guide rail (not shown). An engaging portion 13 of the seat plate portion of the lower shutter is engaged with the chain 5. The seat plate of the upper shutter has a free end. The upper winding section has an upper wheel 3 and an upper winding wheel 8. Figure 3
As is clear from (A), the upper wheel 3 and the upper take-up wheel 8 are integrated by a connecting member 14, and are rotatably supported by an upper fixed shaft 1 attached to a bracket 16. . A storage spring may be provided between the fixed shaft 1 and the upper take-up wheel 8.

The lower winding section has a lower wheel 4 and a lower winding wheel 9. As is clear from FIG. 3(B), each lower winding wheel 9 is integrated by a connecting member 15, and is rotatably supported by the lower rotating shaft 2. A storage spring 10 is provided between the lower take-up wheel 9 and the lower rotating shaft 2. The lower wheel 4 is fixed to the lower rotating shaft 2, and the lower rotating shaft 2 is supported by a bearing 18 attached to a bracket 17.

The chain 5 constitutes an interlocking mechanism, and interlocks the movements of the upper shutter 11 and the lower shutter 12 via the upper wheel 3 and lower wheel 4. One end of the chain 5 is engaged with the seat plate portion of the lower shutter 12, and the other end is fixed to a groove of the lower wheel 4. Although the groove of the lower wheel 4 is provided in a spiral shape on the circumference, it may be a circumferential groove. Since the chain 5 is wound around the upper wheel 3 in a cross-legged manner, the two wheels 3 and 4 rotate in opposite directions. In this embodiment, the interlocking mechanism is not limited to a chain, but may also be a string-like body such as a wire or a belt.

When the lower shutter descends, the lower shutter is wound around the lower take-up wheel, and its winding diameter gradually increases. Therefore, the rotation angle of the lower rotating shaft 2 relative to the descending length becomes smaller, and the moving length of the string-like body such as a chain wound around the lower wheel 4 also becomes smaller. When the string-like body is wound around a circumferential groove, there is also a change in the relationship between the rotation angle of the wheel and the amount of movement of the string-like body. The same applies when the shutter is raised. however,
Since the lower shutter and the string-like body are engaged, the amount of movement of both must be equal. By providing the energy storage spring 10 between the lower take-up wheel 9 and the lower rotating shaft 2, tension is applied to the lower shutter 12, and this difference in movement amount can be compensated for. Therefore, there is no reason why the energy storage spring must necessarily be provided between the lower take-up wheel 9 and the lower rotating shaft 2. For example, if the lower wheel 9 is fixed to the lower rotating shaft 2 and the lower wheel 4 is rotatably supported by the lower rotating shaft 2, the energy storage spring 10 is connected to the lower rotating shaft 2 and the lower rotating shaft. It may be provided between 4 and 4. Alternatively, the chain 5 and the engaging portion 13
It may be provided anywhere that can absorb the difference between the amount of movement of the chain and the amount of movement of the shutter, such as between the chain and the shutter.

[0014] Note that the upper winding portion may have a rotating shaft as shown in FIG. 3(C). The upper wheel 3 and the upper take-up wheel 8 are fixed to the upper rotation shaft 19 using the upper rotation shaft 19. The upper rotating shaft 19 is connected to the bracket 1
What is necessary is just to support it by the bearing 20 attached to 6.

With the configuration described above, the shutter can be opened and closed by moving the lower shutter up or down by hand, and the rotation of the lower take-up wheel accompanying the movement is transferred to the upper take-up wheel by the interlocking mechanism. The upper shutter can be lowered or raised, and since both shutters are well balanced, they can be opened and closed easily without requiring much force. It should be noted that it is clear that the upper shutter may be moved when opening and closing.

FIG. 4 is an explanatory diagram of the opening/closing situation. Since the upper and lower shutters 11 and 12 act as mutual weight balances, (A) the fully closed state shown in the figure, (B) the intermediate opening shown in the figure It can be stopped in any state, including the fully open state shown in Figure (C).

FIG. 5 is a schematic diagram of the main parts for explaining the outline of another embodiment of the present invention. In the figure, parts similar to those in FIG. 1 are denoted by the same reference numerals, and explanations thereof will be omitted. Figure 5 (A
) is an endless version of the chain 5 explained in FIG. There is an advantage that there is no need to take a large amount of winding of the chain 5 into the lower wheel 4. Although the upper winding section described in FIG. 3(C) was used, a mechanism similar to that described in FIG. 3(A) may be used similarly to FIG. 1.

In FIG. 5(B), the lower rotating shaft is a fixed shaft,
This is an embodiment in which a lower fixed shaft 2a is used. Since the chain 5 only needs to be interlocked with the engaging portion 13 of the lower shutter, the lower wheel 4a does not need to be provided coaxially with the lower fixed shaft 2a. Therefore, the degree of freedom in designing the interlocking mechanism increases. However, the energy storage spring 10a needs to have a winding amount sufficient to wind the lower shutter 12. Of course, the lower wheel 4a may be rotatably supported on the lower rotating shaft 2a. By appropriately selecting the friction force between the energy storage spring 10a and the shaft portion, light operation can be achieved.

FIG. 6 is a vertical cross-sectional view for explaining the structure for attaching to an opening in a building frame. FIG. 6(A) is an example of a bay window type, and FIG. 6(B) is an example of an internal type. Components similar to those in FIG. 1 are designated by the same reference numerals and their description will be omitted. 21 is the seat plate of the upper shutter, 2
2 is the seat plate of the lower shutter, 23 is the sliding glass door,
24 is an upper storage cover, 25 is a lower storage cover, 26 is a top plate, 27 is a base plate, 28 is a drain hole, and 29 is a guide rail. In the bay window type embodiment shown in FIG. 6(A), the upper storage cover 24 and lower storage cover 25 that house the shutter are extended, so
4 can be used as an eave, and the lower storage cover 25 can be used as a base plate 27 for a bay window, such as by placing a flower pot for decoration.
It also looks good. Since the shutter is divided, the winding diameter of the winding wheel can be reduced, as shown in Figure 6 (B).
As shown in the figure, an internal format can also be adopted. The shutter is attached to the exterior wall of the building so that it does not protrude, and most of the storage space can be stored within the wall.

In the present invention, the upper and lower shutters do not necessarily need to be completely divided into two, and one shutter may be made shorter than the other. In that case, either make the diameter of the shorter take-up wheel smaller than the other, or
Alternatively, an interlocking mechanism may be considered, such as reducing the diameter of the upper wheel 3 so as to provide a difference in the rotational speed of the winding wheels. Alternatively, both may be performed.

[0021]

[Effects of the Invention] As is clear from the above description, according to the present invention, by dividing the shutter and interposing an elastic body that applies tension to the lower shutter, the lower shutter does not become loose. This has the effect of allowing smooth opening and closing. Further, since the shutter is divided, the amount of winding in the winding section can be reduced, the storage section can be made smaller, and an attractive shutter can be provided.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram of an embodiment of the present invention.

FIG. 2 is an enlarged view of essential parts of an embodiment of the present invention.

FIG. 3 is an explanatory diagram of a winding section in one embodiment of the present invention.

FIG. 4 is an explanatory diagram of the opening/closing situation in the embodiment of the shutter of the present invention.

FIG. 5 is a schematic configuration diagram of main parts of another embodiment of the present invention.

FIG. 6 is a sectional view of the shutter according to the embodiment of the present invention attached to a building.

[Explanation of symbols]

1 Upper fixed shaft 2 Lower rotating shaft 3 Upper wheel 4 Lower wheel 5 Chain 8 Upper take-up wheel 9 Lower take-up wheel 10 Energy storage spring 11 Upper shutter 12 Lower shutter 13 Engagement part

Claims (1)

[Claims] 1. An upper winding part provided above an opening in a building frame, an upper shutter provided in the upper winding part so as to be able to be rolled up, and a lower winding part provided below the opening. a take-up part, a lower shutter provided in the lower take-up part so as to be able to take up the wind, an interlocking member that interlocks the seat plate part of the lower shutter and the upper take-up part, and a tension member applied to the lower shutter in the take-up direction. A vertically divided shutter characterized by having a tension applying member that applies a tension.