JPS6389791A - Panel shutter - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides that each panel forming a shutter curtain is
This invention relates to an improvement in a panel shutter that can be lifted and lowered by being suspended from a chain driven by a sprocket.

[Prior art and its problems]

Conventional general panel shutters, as shown in Figure 5,
A plurality of panels 2.2 forming the shutter curtain l.
-... are attached to a roller chain 4 driven by a sprocket 3 at a predetermined mounting pitch, and are suspended from the roller chain 4 and raised and lowered, and the mounting pitch between each panel 2 and 2 is adjusted. is the panel height H of panel 2
The length is a certain length (selected).

In addition, the installation pitch L of each panel 2 is selected to be longer than the panel height I (to provide a gap S between each panel 2).The reason is that the sprocket 3 is rotated in the direction of arrow F + force and raised vertically. When the panels 2.2... passed through the sprocket 3, the grooves 2b formed at the lower end of each panel 2 are completely separated from the protrusions 2a formed at the upper end of the succeeding panel 2, and each This is to enable the panel 2 to smoothly move horizontally and onto the storage rail 5 while maintaining its vertical state.

By the way, immediately after such a panel shutter starts to open or just before it finishes closing, all of the panels 2 and 2- are suspended from the roller chain 4 with the subrocket 3 as the hanging source, as shown in FIG. In this case, the entire weight of the panels 2, 2, etc. is applied to the roller chain 4 and the sprocket 3 that drives it.

For this reason, if the panel shutter becomes larger, the strength of the sprocket 3 and roller chain 4 must be increased accordingly, and at the same time, the capacity of the motor of the opening/closing machine 6 that rotates the sprocket 3 must be increased. There was a problem that equipment costs and electricity costs increased.

Additionally, there are limits to increasing the strength of the sprocket 3 and roller chain 4, or increasing the capacity of the motor.For example, the opening height is more than double that of a normal large panel shutter.
It was considered impossible to install panel shutters that could be opened and closed in the manner shown in Figure 6 in large buildings that were several meters long.

Furthermore, when ventilating without opening the conventional panel shutter, the shutter curtain 1 is stopped in the state shown in FIG. They must be hung and spaced apart from each other.

Therefore, in this case, the panel shutter is not completely closed and the panels 2, 2-, - are not overlapped with each other, so the entire shutter curtain 1 is in a state of insufficient strength, which is not desirable from a security perspective. At the same time,
There is a problem in that each panel 2.2.- generates vibration noise when exposed to wind. Furthermore, since the gaps S between the panels 2 are very small, there is also the drawback that sufficient ventilation cannot be obtained.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a panel shutter that enables manufacturing of large panel shutters without increasing equipment costs and provides sufficient ventilation without causing the problem of insufficient strength in the closed state. do.

[Structure of the invention]

To achieve this objective, the present invention provides a panel shutter in which each panel forming the shutter curtain is raised and lowered by being suspended on a chain driven by a sprocket, and in which a panel shutter is provided between certain panels attached to the chain. The mounting pitch is selected to be greater than or equal to an interval at which the other panel can stop descending before the - panel passes the sprocket and starts descending.

[Action of the invention]

According to the present invention, for example, if the installation pitch between two panels located in the middle of the shutter curtain is selected to be at least the interval at which the other panel can stop descending before one panel passes the sprocket and starts descending. , after the lower end of the shutter curtain touches the ground and the panels forming the lower half overlap each other and completely stop descending, each panel forming the upper half of the shutter curtain is sequentially suspended from the chain and begins to descend. .

Therefore, the maximum load on the chain that suspends the panel is equivalent to the total weight of the panels that form only the upper or lower half of the shutter curtain, and is approximately 2 times the conventional weight. It is possible to significantly reduce the capacity of the motor that drives the system, reducing equipment and power costs. Also, since the top half of the shutter curtain can be opened and the bottom half closed,
If this is installed at the counters of various shops, it can be used as a security partition while the shop is open.

Also, for example, if the installation pitch between the two panels forming the upper end of the shutter curtain is selected to be greater than the above-mentioned interval,
By lowering all the other panels, leaving only the final panel forming the top edge of the shutter curtain so that they completely overlap, there is a very large panel height equivalent to the height of one panel at the top edge of the closed panel shutter. A large ventilation hole can be formed. Moreover, all the panels except the last panel overlap each other and are completely closed, so there is no vibration noise caused by the wind.
This is also a favorable situation in terms of crime prevention.

[Example ■]

Embodiments of the present invention will be specifically described below based on the drawings.

FIG. 1 is a side view schematically showing an example of a panel shutter according to the present invention, and FIG. 2 is a side view showing its operation.

Note that parts common to FIGS. 5 and 6 are denoted by the same reference numerals, and detailed description thereof will be omitted.

This example shows a large panel shutter installed at the entrance of a building with an opening height of about 8 to 10 meters or more, and a roller chain 4 driven by a sprocket 3.
Among the panels 2.2-. attached to form the shutter curtain 1, the mounting pitch L+ between two specific panels 2a and 2b located in the middle of the shutter curtain l is as shown in FIG. Before one panel 2a passes the sprocket 3 and starts descending, the other panel 2a
b is selected to be at least the interval that allows the panel to stop descending, and the mounting pitch between the other panels 2 is selected to be slightly longer than the panel height of each panel 2, as shown in Figure 5. has been done.

Therefore, when closing this panel shutter, the sprocket 3 is rotated in the direction of arrow F2. As a result, the panels 2, 2...- stored on the storage rail 5 are
Starting from the leading panel 2 forming the lower end of the shutter curtain 1, it passes through the sprocket 3 in order, is suspended by a roller chain 4 driven by the sprocket 3, and begins to descend.

Immediately before the leading panel 2 forming the lower end of the shutter curtain 1 touches the ground and stops descending, all the panels from the panel 2 to the panel 2b located in the middle of the shutter curtain 1 are suspended from the roller chain 4. After that, the panels 2, 2, . . . and 2b are stacked one on top of the other.

In this way, as shown in FIG. 2, when the panel 2b completely overlaps the preceding panel 2 and stops descending, the panel 2a and each panel 2 following the panel 2a.
2- passes through the sprocket 3 one after another, and the roller chain 4
It is suspended from and begins to descend.

Immediately before the panel 2a is stacked on top of the panel 2b, all the subsequent panels up to the panel 2a and the panel 2 forming the upper end of the shutter curtain l are suspended on the roller chain 4, and then each of these panels is suspended from the roller chain 4. Panels 2a and 2, 2-. are panel 2b as shown in FIG.
The panel shack will be completely closed by being stacked one after the other.

In addition, when opening the panel shutter, rotate the sprocket 3 in the direction of the arrow F to start raising the last panel 2 that forms the upper end of the shutter curtain 1, and cover all panels from the panel 2 to the panel 2a. When the panels pass through the sprocket 3 and finish rising as shown in Fig. 2, the panels 2, 2, . .

Then, the leading panel 2 forming the lower end of the shutter curtain l passes through the sprocket 3 and is moved onto the storage rail 5, so that the panel shutter is completely opened.

As described above, when the shutter curtain l is divided into the lower half 1a and the upper half 1b and raised and lowered when opening and closing the panel shutter, the load of the shutter curtain l is applied to the roller chain 4 and the sprocket 3 that drives it. is approximately 2, the strength of the sprocket 3 and cola chain 40 and the capacity of the motor of the opening/closing device 6 can be significantly reduced, and at the same time, it is possible to reduce equipment costs and electricity costs for panel shutters, and at the same time It also becomes possible to manufacture oversized panel shutters, which was previously considered impossible.

In addition, as shown in Figure 2, only the lower half 1b of the shutter curtain 1 can be closed and the upper half 1a can be completely opened, so if this is installed at the counters of various shops, it can be used for crime prevention while the store is open. It can be used as a partition.

[Example ■]

Next, FIG. 3 is a side view showing another example of the panel shutter according to the present invention, and FIG. 4 is a side view showing its operation.

In this example, the mounting pitch L2 (7) between two specific panels 2c and 2d forming the upper end of the shutter curtain I is such that the panel 2d stops descending before the panel 2c passes the sprocket 3 and starts descending. The mounting pitch between the other panels 2 is selected to be slightly longer than the panel height H of each panel 2, as shown in FIG.

Thus, only the final panel 2C forming the top end of the shutter curtain l is left on the storage rail 5, and all the other panels 2.2- and 2d are passed through the sprocket 3 and suspended from the roller chain 4. When lowered and stacked one on top of the other, a very large ventilation lower corresponding to the height H of the panel 2C can be formed at the upper end of the closed panel shutter. Moreover, since the panels 2.2- and 2d except for the final panel 2C all overlap each other and are in a completely closed state, the shutter curtain 1 does not generate vibration noise due to wind.
It is also strong, making it ideal for crime prevention.

〔Effect of the invention〕

As described above, the panel shutter according to the present invention is
Even with large panels, there is no need to increase the strength of the chains that suspend each panel or the sprockets that move the chain, or increase the capacity of the motor that drives the sprockets, reducing equipment costs and electricity. This has the very advantageous effect of significantly reducing costs and making it possible to create extra-large panel shutters that can be installed in large buildings.

Another advantageous effect is that when the panel shutter is closed, sufficient ventilation can be obtained without causing problems such as insufficient strength of the shutter curtain.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an example of the panel shutter according to the present invention, FIG. 2 is a side view showing its operation, FIG. 3 is a side view showing another example of the panel shutter according to the present invention, and FIG. 4 is a side view showing its operation. FIG. 5 is a side view showing the main parts of a conventional panel shutter, and FIG. 6 is a side view showing the operation. Explanation of symbols 1--shutter curtain, 2--panel, 2 a
r'lb, 'lc, 'ld--specific panel, 3-sprocket, 4--roller chain, L, , L, t-
- Mounting pitch between specific panels.

Claims (1)

[Claims] In a panel shutter in which each panel forming a shutter curtain is lifted and lowered by being suspended from a chain driven by a sprocket, the mounting pitch between specific panels attached to the chain is such that one panel passes through the sprocket. A panel shutter is characterized in that the interval is selected to be longer than the interval at which the other panel can stop descending before it starts descending.