KR20030033642A - Apparatus for opening and shutting a shutter - Google Patents

Abstract

PURPOSE: A shutter operating system is provided to protect a shutter by surface pressure caused by a car crash, to economize in driving energy by making the use of low-strength and lightweight shutters possible, to simplify a structure and to decrease working noise and to install in a narrow space by an elastic structure. CONSTITUTION: The shutter operating system contains a flexible shutter(10) attached with bendable guide blocks(13,14), guide channels(20,30) installed on both edges of an entrance and provided with guide grooves(26,36) composed of elastic ribs(22,32) and fixtures(21,31) to guide the guide blocks(13,14), a driving roller ascending a shutter to the opening location or descending to the closing location, and a winding roller winding the ascending shutter.

Description

Apparatus for opening and shutting a shutter}

The present invention relates to a flexible shutter opening and closing device installed at the entrance of a large warehouse or parking lot, and in particular, when an overload of a certain load is applied to the flexible sheet, the flexible sheet is separated from the guide rail and wound upward. A shutter opening and closing apparatus is provided so that damage to a sheet can be prevented by making it possible.

For example, shutters are provided at the entrance and exit of a large warehouse or a parking lot so as to open and close the entrance and exit only when the vehicle is opened to improve indoor cooling / heating efficiency and block inflow of external dust.

Such shutters are usually made to be automatically opened and closed by sensor operation in order to reduce convenience and labor costs.

However, in spite of convenient automatic opening and closing, there are occasions in which the vehicle collides with the shutter and the shutter is broken before the shutter is opened by the sensor detection due to driving immaturity.

An example of an apparatus for preventing such shutter damage is disclosed in Korean Patent Registration No. 10-0292458. The disclosed technique allows the side of the flexible membrane 1 to be detached from the guide channel 3 when the load is applied to the flexible membrane 1 in a collision of a vehicle or the like, as shown in FIGS. 1 to 3. The damage of the membrane 1 is prevented. In addition, protruding sleeves 6 protruding to both sides with respect to the plane of the membrane 1 surround the side edges of the membrane 1 at least partially in the side portions of the flexible membrane 1, and the protruding sleeves 6 are guide channels. It is supposed to be held and moved in (3).

By the way, such a device has a structure in which the protruding sleeve 6 is jointed to each other, not only the structure is complicated, but also a noise is generated in the joint connection when the membrane 1 is wound or unwound.

In addition, as shown in Figures 2 and 3, the guide passage of the guide channel 3 has a substantially rectangular structure and the protrusion sleeve 6 guided to the guide channel 3 is also formed in a corresponding rectangular structure, When the protruding sleeve 6 is disengaged from the guide channel 3, a considerable degree of load must be applied to the membrane 1. Therefore, in order to protect the membrane 1 even under a considerable degree of load, the membrane 1 must be manufactured with high strength. In this case, the weight of the membrane 1 is increased, thereby increasing the energy consumption of opening and closing the membrane 1.

In addition, the guide channel 3 elastically deforms in both directions when the protruding sleeve 6 is separated from the guide channel 3. Therefore, when installing the guide channel (3), the bidirectional space must be considered, so a large installation space is required.

The present invention has been made to solve the above problems and has the following object.

First, to provide a shutter opening and closing device that allows the shutter to be easily released from the guide channel when a load is applied to the membrane (shutter) in the closed position.

Second, to provide a shutter opening and closing device that is lightweight but protected from collision of the vehicle and is advantageous for energy saving.

Third, to provide a shutter opening and closing device with a simple structure and reduced noise during operation.

Fourth, to provide a shutter opening and closing device that can be installed in a narrow space.

1 is a front view showing a conventional sealing device,

FIG. 2 is a cross-sectional view illustrating main parts of a membrane coupled to a guide channel employed in the apparatus of FIG. 1; FIG.

3 is a cross-sectional view showing a state that is released when the surface pressure is applied to the membrane from the state of FIG.

Figure 4 is a front view showing a closed position state in the shutter opening and closing device of the present invention,

Figure 5 is a front view showing an open position state in the shutter opening and closing device of the present invention,

6A through 6C are cross-sectional views sequentially illustrating a process of detaching the shutter when a surface pressure is applied to the shutter;

7 is a schematic plan view showing a drive unit employed in the shutter opening and closing apparatus of the present invention;

8 is a schematic cross-sectional view showing the wound state of the shutter.

* Explanation of symbols for main parts of the drawings

10 ... Shutter 11, 12 ... Timing belt

13, 14 ... Guide block 20, 30 ... Information channel

21,31 ... government 22,32 ... elastic ribs

25, 35 ... inclined groove 26, 36 ... guide groove

The shutter opening and closing device of the present invention to achieve the above object is moved up and down between the closed position and the open position to open and close the entrance and the flexible shutter is bent along the one side of both edges and the flexible shutter;

Guide channels formed at both edges of the entrance and having guide grooves formed of elastically deformable elastic ribs and fixing parts for substantially guiding the guide blocks;

A driving roller which raises the shutter to the open position or descends to the closed position;

And a winding roller for winding the raised shutter,

The guide block may be separated from the guide channel when a surface pressure is applied to the shutter.

In addition, a timing belt is attached to the other side of both edges of the shutter facing the guide block to prevent slip between the driving roller and the shutter, and the driving roller is provided with a timing gear that is engaged with the timing belt.

In addition, the outer peripheral surface of the guide channel except the elastic rib is provided with a metallic reinforcing plate.

In addition, the guide block is formed inclined surface of the predetermined slope in the left and right direction, the inclined groove corresponding to the inclined surface of the guide block is formed in the fixing portion of the guide channel.

According to the characteristics of the present invention as described above, the shutter opening and closing device of the present invention can be separated from the guide channel by the deformation of the elastic rib which is only one side of the guide channel when the surface pressure is applied to the shutter. Therefore, the shutter can be detached even at a small surface pressure, so that the shutter can be protected from an external impact even when the strength and weight of the shutter are small, and it is advantageous to reduce driving energy.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

4 to 8 illustrate the shutter opening and closing apparatus of the present invention installed at an entrance such as a large warehouse or a parking lot.

The opening and closing device includes a guide channel (20) and (30) installed at both edges of the entrance and exit, a flexible shutter (10) guided by the guide channel and moved up and down, and the flexible shutter (10) in an open position and a closed position. A driving roller 50 for applying power to move up and down the furnace, and a winding roller 60 for winding the flexible shutter 10 to be raised.

The flexible shutter 10 is moved up and down between a closed position as shown in FIG. 4 and an open position as shown in FIG. 5 to open and close the doorway. Flexible guide blocks 13 and 14 are attached to one side of both edges of the flexible shutter 10. In addition, timing belts 11 and 12 are attached to opposite side edges of the shutter 10 opposite to the guide blocks 13 and 14.

Such a flexible shutter 10 is formed in a sheet shape and can be wound around the winding roller 60.

6A and 6B, the guide channels 20 and 30 are respectively provided at both edges of the entrance so that the edges of the flexible shutter 10 are slidably coupled to each other. The guide channels 20 and 30 are guide grooves 26 formed of fixing parts 21 and 31 for guiding the guide blocks 13 and 14 and elastic ribs 22 and 32 that are elastically deformable. 36 is formed.

In addition, the fixing parts 21 and 31 and the elastic ribs 22 and 32 constituting a part of the guide channels 20 and 30 are formed of a synthetic resin material, and guides other than the elastic ribs 22 and 32 are used. The outer circumferential surface of the channels 20 and 30 is provided with metallic reinforcing plates 23 and 33.

In addition, the guide blocks 13 and 14 are formed with an inclined surface of a predetermined slope in left and right directions, and the fixing portions 21 and 31 of the guide channels 20 and 30 are formed of the guide blocks 13 and 14. Inclined grooves 25 and 35 corresponding to the inclined surface are formed.

7 and 8, the driving roller 50 and the winding roller 60 are accommodated in the box 100. Both ends of the drive roller 50 are provided with timing gears 51 and 52 which mesh with the timing belts 11 and 12, and are driven by a motor 40. This drive roller 50 raises the flexible shutter 10 to an open position or to a closed position.

The winding roller 60 is connected to the driving roller 50 by the connecting belt 70 and rotates, thereby winding or releasing the flexible shutter 10.

The present invention flexible shutter opening and closing device is operated as follows.

First, normal operation is as follows. Referring to FIG. 6A, when the vehicle 300 approaches the doorway, the sensor 300 is detected by the sensors 111 and 112 installed at the doorway, and the detected signal drives the motor 40. At this time, as the driving roller 50 and the winding roller 60 are rotated together, the flexible shutter 10 is wound to an open position as shown in FIG. 5. The flexible shutter 10 to be wound has guide blocks 13 and 14 and timing belts 11 and 12 at the edge thereof stably along the guide grooves 26 and 36 of the guide channel 200 (30). You are guided.

On the other hand, when surface pressure is applied to the flexible shutter 10, for example, when the vehicle 300 to enter through the doorway collision occurs as shown in Figure 6b the operation is as follows.

When the vehicle 300 collides with the flexible shutter 10 due to immature driving, the sensor 40 is already detected by the sensors 111 and 112 and the motor 40 is driven, and the driver stops the vehicle 300 at the moment. . At this time, due to the surface pressure caused by the collision of the vehicle 300, the flexible shutter 10 has guide channels 13 and 14 and timing belts 11 and 12 at the edges as shown in FIGS. 6B and 6C. 20, 30 is separated from. Therefore, even though surface pressure is applied to the flexible shutter 10 due to the collision of the vehicle 300, the edge of the flexible shutter 10 is separated from the guide channels 20 and 30 so that the flexible shutter 10 is torn. Back damage is prevented.

On the other hand, when surface pressure is applied to the flexible shutter 10, as shown in Figure 6b, the guide blocks 13, 14 are moved along the inclined surface of the fixing portion (21) (31), at the same time the elastic rib ( As the 22 and 32 are deformed, the edge of the flexible shutter 10 is separated from the guide channels 20 and 30. Such a detachment operation reduces the load on the elastic ribs 22 and 32 interlocked with the edge of the flexible shutter 10 to extend the life, and facilitates the detachment even at a small surface pressure. Therefore, it is possible to use the flexible shutter 10 of low intensity and thus to reduce the weight.

As shown in FIG. 6C, the edge of the flexible shutter 10 is separated from the guide channels 20 and 30 by the surface pressure caused by the collision of the vehicle, and the driving roller 50 is driven by driving the motor 40. And the rotation of the winding roller 60, the flexible shutter 10 is raised to the open position. Referring to FIGS. 7 and 8, the timing belts 11 and 12 are prevented from being lifted by the pressing roller 53 and the guide plate 54 corresponding to the timing gears 51 and 52 at this time. The flexible shutter 10, which has been disengaged, is positioned in a position capable of recombination with the guide channels 20 and 30 in an open position as shown in FIG.

The movement from the open position to the closed position is made possible by the reverse drive of the motor 40 and the downward thrust by the weight 200.

The flexible shutter 10 as described above may be made of a transparent material so that the inside can be observed, and a separate window for observing the inside may be formed.

Needless to say, the flexible shutter opening and closing apparatus of the present invention as described above is not limited to the above embodiment and can be implemented by adding a number of modifications. For example, a flat belt may be employed instead of the timing belt represented in the above embodiment.

The shutter opening and closing apparatus of the present invention as described above has the following advantages.

First, when the surface pressure acts on the shutter 10 in the closed position, the guide blocks 13 and 14 are easily detached from the guide channels 20 and 30 in which the inclined grooves are formed, thereby reducing the Shutter is protected.

Second, since the edge of the shutter 10 is easily separated from the guide channels 20 and 30 even at a small surface pressure, it is possible to use the shutter 10 of low intensity and light weight, and accordingly, It is advantageous for saving.

Third, the flexible guide blocks 13 and 14 and the timing belts 11 and 12 are attached to both edges of the shutter 10, thereby simplifying the structure and reducing noise during operation.

Fourth, unlike the conventional apparatus described above, the elastic ribs 22 and 32 can be installed in a narrow space by having a structure in which elastic ribs are deformed in one direction.

Claims (4)

A flexible shutter that is moved up and down between a closed position and an open position to open and close an entrance and a guide block that is bent along one side of both edges; Guide channels formed at both edges of the entrance and having guide grooves formed of elastically deformable elastic ribs and fixing parts for substantially guiding the guide blocks; A driving roller which raises the shutter to the open position or descends to the closed position; And a winding roller for winding the raised shutter, And the guide block is separated from the guide channel when surface pressure is applied to the shutter. 2. The shutter opening and closing device according to claim 1, wherein a timing belt is attached to opposite side edges of the shutter facing the guide block, and a timing gear is engaged with the timing belt on the driving roller. The shutter opening and closing device according to claim 1 or 2, wherein a metallic reinforcing plate is provided on an outer circumferential surface of the guide channel excluding the elastic ribs. The shutter of claim 1 or 2, wherein the guide block has an inclined surface inclined in a left and right direction, and an inclined groove corresponding to the inclined surface of the guide block is formed in the fixing portion of the guide channel. Device.