JPH0151629B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a shutter that opens and closes an entrance/exit or a window of a house or the like built in a house or the like.

(Prior Art) The holding structure of the slat curtain in a conventional well-known shutter was such that the slat curtain was wound in layers on a winding wheel suspended horizontally in a storage box at the top of the shutter. However, when such a winding method is used, there are the following problems.

(a) In the overlapping state, the slat surfaces are in strong pressure contact with each other, which tends to cause scratches on the slats, as well as deformation of the slats.

(b) Since the winding diameter (maximum diameter) of the wheel is determined by the height of the curtain and the thickness of the slats, the thickness dimensions of the front and rear of the storage box vary, making it difficult to standardize the storage box.
The complexity of the current layout cannot be avoided, and if the height of the curtain is high, it is unavoidable that the box will protrude significantly.Furthermore, since it is desired to reduce the winding diameter as much as possible, the cross-sectional thickness shape of the slat cannot be avoided. As a result, the degree of freedom in slat shape is limited.

(c) Due to the irregular contact friction of the slats, the curtain does not move up and down smoothly, which requires a large capacity to drive the wheels, and can be dangerous in the event of wheel braking failure.

In view of the above points, a shutter described in Japanese Patent Publication No. 56-5914 has been proposed. In this previously proposed shutter, the upper end of the slat curtain is transferred upward by a rotating shaft, is reversed to the opposite side of the outer periphery of the rotating shaft, and is stored by overlapping the inner bottom of the storage box on the opposite side. It has a structure.

(Problem to be Solved by the Invention) However, in the above-mentioned conventional inversion polymerization type shutter, it is inevitable that the distance between the front and rear slat curtains in the inversion section becomes wider by the diameter of the rotating shaft, and the storage box of the shutter becomes larger. Large diameter,
Further, during the reversing operation, the slat curtain rides on the outer periphery of the rotating shaft and comes into contact with it, which causes the slat curtain to be easily damaged and cause noise.

The present invention has been made in view of the above points, and provides a shutter of the above-mentioned inversion polymerization type, in which the front and rear width of the storage box is made small, and the slat curtain is not damaged during the inversion operation. It is intended to.

(Means for Solving the Problems) Next, means for achieving the above object will be described with reference to drawings corresponding to embodiments.

That is, in the present invention, the ear shafts 12 of the slats 10, 17, 18, 19, which have the ear shafts 12, 12 protruding from both sides, are connected to each other so as to be rotatable in the vertical direction, so that the slats can be connected to each other. The slat curtains are independently rotatably connected in the vertical direction, and the slat curtains are rotatably separated from each other and pivoted in synchronization with both sides of the storage box 1 at the top of the shutter. , 17, 18, 19, a pair of left and right winding wheels 2, 2 each having an engaging portion that engages with the ear shafts 12, 12 on both sides,
0, 17, 18, and 19 are located at the intermediate part of the left and right winding and feeding wheels 2, 2, and from the lowered closed position, the left and right winding and feeding wheels 2, 2
Each slat 10, 17,
18, 19 The ear shafts 12, 12 on both sides are engaged and rise as the left and right winding and feeding wheels 2, 2 rotate, and the upper end of the slat curtain 9 is sequentially stored on the opposite side of the winding and feeding wheels 2, 2. The slats 10, 17, 18, and 19 are reversely lowered into the box 1 and moved sequentially onto the inner bottom of the storage box 1, so that the slats 10, 17, 18, and 19 are stacked and stored with their front and rear surfaces overlapped vertically. A synchronous transmission shaft 3 having a diameter smaller than that of the winding wheel 2 is pivotally supported in the left-right direction at a position below the left and right winding wheels 2 in the storage box 1. The shutter is characterized in that the left and right winding wheels 2, 2 are rotatable in synchronization by being interlocked with the left and right winding wheels 2, 2.

(Function) In the configuration of the present invention described above, when one winding wheel 2 is automatically or manually rotated from the lowered closed position where the opening of the building is closed by the slat curtain, the synchronous transmission shaft 3 is rotated. The other winding wheel 2 also rotates in synchronism. At this time, the left and right ear shafts 1 of each of the slats constituting the slat curtain are attached to the engaging portions of the left and right winding and feeding wheels 2, 2.
2 and 12 are engaged, the slat curtains are moved upward from the lowered closed position to the raised open position, and are then reversed and stored one after another on the inner bottom on the opposite side of the storage box 1. .

According to the structure of the present invention, in the above-mentioned inverted position, the slat curtain is located between the left and right winding wheels 2, 2, so that the front and rear width of the storage box 1 at this position is slightly larger than the diameter of the winding wheel. The slats may have a large length, and the slats do not come into contact with each other or with other members.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

In the shutter of the embodiment, as shown in FIGS. 1 to 3, in the interior space of the storage box 1 at the top of the shutter, which is built over the opening of the building, there are two storage boxes facing each other on the left and right sides of the top. A pair of winding and feeding wheels 2 are horizontally supported on bearings, and a synchronous transmission shaft 3 is horizontally supported and supported on the lower part thereof. , are connected to each sprocket 5 at both ends of the transmission shaft 3 via a chain, so that both the left and right wheels are formed so as to rotate in unison.
The wheel shaft 2a (on the right side of the figure) is coupled to a drive shaft 6 of an opening/closing motor (not shown).

It should be noted that tooth grooves 2b or gears replacing the tooth grooves 2b are recessed at a plurality of locations (three locations in the figure) on the circumference of the winding and feeding wheel 2.

In addition, on the front and rear sides of the lower half of the left and right inner walls of the box 1, there are a storage guide rail plate 7 and an unwinding guide rail plate 8 (shown in Figure 2).
The storage rail plate 7 has a pair of groove rails 7a whose lower ends are closed in a bag shape.
is formed, and on the other hand, the unwinding rail plate 8 is formed with a hit rail 8a.

Next, each slat 10 constituting the slat curtain 9 forming the partition plate of the shutter has, for example, a box-shaped bracket 11 at the left and right ends of the upper part of the back surface.
is fixed thereto, and the welded ear shafts 12 of the bracket 11 protrude from both sides of the slat 10.

Thus, the ear shafts 12 of the vertically adjacent slats 10 are rotatably connected to each other through folding links consisting of a pair of pivot links, a long link 13 and a short link 14. ing.

Note that a limit claw 1 is attached to one end of the short link 14.
4a is bent and formed, which prevents the intersection angle with one long link 13 from extending completely into a straight line, and one end of the long link 13 protruding from the pivotal joint is provided with a tilting claw. 13a is bent and formed, and as will be described later, the slat 10 is folded when stored.
It has the effect of forcing it sideways.

The slat curtain 9 formed in this way is
After being pulled into the box 1, the slat ear shafts 12 on both sides are loosely fitted into the tooth grooves 2b of the left and right wheels 2, and then wrapped around the upper half of the wheel 2. each slat 1
0 is lowered from the front edge of the wheel 2 into the space inside the box 1, and each ear shaft 12 is moved to the guide rail plate 7.
It is adapted to be dropped into the groove rail 7a.

Note that when the slat curtain 9 is drawn into the box 1, one side of the slat ear shaft 12 hits the rail 8a of the guide rail plate 8 to prevent it from swinging out, so that the slat ear shaft 12 is reliably moved. It is designed to be guided into the tooth groove 2b.

Here, the operation of the shutter of the embodiment configured as described above will be described.

First, the slat curtain 9 is shown in the closed state (the third
In the figure), the ear shaft 12 supporting each slat 10 is
Since each slat 10 is provided on the upper part of the slat 10 and the ear shaft 12 is loosely connected to the folding link, each slat 10 is aligned in a vertical straight line due to its own weight, and when folded Since the link intersection angle is limited, the alignment line will not waver.

In this state, as shown in the slat 10 in Fig. 3, if the slat 10 is tilted horizontally against the downward gravity of the slat, the slat 10 will open in a louver shape, allowing ventilation or light to enter inside the shutter as appropriate. be able to.

Next, when the winding and feeding wheel 2 is powered counterclockwise in the drawing to open the shutter, the slat 10 being wound and fed descends from the front of the wheel 2 while maintaining a vertical posture due to its own weight.
Overhang pin 16 of short link 14 at upper end of curtain 9
(shown in Fig. 2) hits the bottom of the groove rail 7a, the gravitational load on the long link 13 disappears, causing the link 13 to fall forward, and the slat 10 to be moved by the knocking claw 13a. The upper end is pushed to collapse the slat 10, and as a result, the slat 10 is stored along the guide rail 7 in a horizontally collapsed state.

As the winding progresses further, the slats 10 that continue to descend are successively superimposed and stacked on top of the preceding slats 10 that have already been accommodated.

In the shutter of the embodiment that operates in this manner, (a) the slats 10 are stored in the box 1 in a state of being stacked one on top of the other, so (b) the slat surfaces do not come into contact with each other. Therefore, there is no risk of the slat 10 being damaged or deformed, and (b) the cross-sectional shape of the slat 10 is not restricted, so the shape of the slat can be freely selected. ), regardless of the size of the height of the curtain 9, the depth when stored is not constant. By setting several types of boxes and standardizing the boxes, construction on site becomes easier, and (d) even if the wheel brake fails, the storage slats will not fall off, making it highly safe.

(b) Since the slats 10 that are driven to be transferred are transferred in a suspended and free state, (a) the curtain 9 can be moved up and down smoothly, and (b) the drive friction is small, so the capacity is small. In addition to requiring only 100 yen of power, no noise is generated during transfer.

(c) With curtain 9 closed, slat 1
0 can be opened and closed individually or at once via the ear shafts 12, allowing for ventilation and lighting at any time.

There are advantages such as

By the way, as mentioned above, in the structure of the above embodiment, there is a large degree of freedom in the shape of the slats. For example, as in the case of the slat 17 shown in FIG. Alternatively, the slat 18 shown in FIG.
As shown in FIG. 6, the slats may be formed into a closed cross section with a back plate for reinforcement, or as in the case of the slat 19 shown in FIG. good.

(Effects of the Invention) As described above, according to the present invention, the upper end of the slat curtain 9 in the lowered closed position is flipped downward at the upper part of the storage box 1 and placed on the inner bottom of the storage box 1. When stacking and storing, the slats forming the slat curtain 9 are positioned in the middle of the left and right winding wheels 2, 2 which are supported separately on both sides of the storage box 1, and the slats forming the slat curtain 9 are Since the ear shafts 12, 12 protruding from both sides are engaged with the upper half circumference of the winding and feeding wheels 2, 2 and reversed and lowered, the intervals between the parallel slats in the front and rear can be narrowed when the winding wheels 2, 2 are reversed and lowered. Therefore, one part of the storage box can be formed compactly. Furthermore, during the reversal and descent, the slats do not come into contact with other members or with each other, and this type of shutter has the advantage that damage to the slats and generation of noise due to contact can be prevented.

[Brief explanation of drawings]

1 is a perspective view of the main parts of a shutter showing an embodiment of the present invention, FIG. 2 is a side sectional view taken along the - line in FIG. 1, and FIG. 3 is a slat at the lower right of FIG. The side sectional views of the curtain, Figures 4 to 6, are as follows:
FIG. 7 is a side cross-sectional view of another embodiment of the slats having different shapes. 1... Storage box, 2... Winding feed wheel,
2b...Tooth groove, 9...Slat curtain, 10,
17, 18, 19... Slut, 12... Ear shaft,
13, 14...Long links and short links forming folded links.

Claims (1)

[Scope of Claims] 1. The ear shafts 12 of each slat 10, 17, 18, 19 having ear shafts 12, 12 protruding from both sides are connected to each other so as to be rotatable in the vertical direction, so that each slat is The slat curtains are rotatably connected vertically and independently of each other, and the slat curtains are rotatably supported on both sides of the storage box 1 on the upper part of the shutter, and are rotatably separated from each other. 10, 17, 18, 19; a pair of left and right winding and feeding wheels 2, 2 each having an engaging portion that engages with the ear shafts 12, 12 on both sides; 1
0, 17, 18, and 19 are located at the intermediate part of the left and right winding and feeding wheels 2, 2, and from the lowered closed position, the left and right winding and feeding wheels 2, 2
Each slat 10, 17,
18, 19 The ear shafts 12, 12 on both sides are engaged and rise as the left and right winding and feeding wheels 2, 2 rotate, and the upper end of the slat curtain 9 is sequentially stored on the opposite side of the winding and feeding wheels 2, 2. The slats 10, 17, 18, and 19 are reversely lowered into the box 1 and moved sequentially onto the inner bottom of the storage box 1, so that they are stacked and stored with their front or rear surfaces stacked vertically. A synchronous power transmission shaft 3 having a diameter smaller than that of the winding wheel 2 is pivotally supported in the left-right direction at a position below the left and right winding wheels 2 in the storage box 1, and the synchronous power transmission shaft 3, the left and right winding wheels 2, 2 are rotatable in synchronization by interlocking the left and right winding wheels 2, 2.