JPS5829273Y2 - Simple shutter - Google Patents

Description

[Detailed Description of the Invention] This application relates to a technology for simplifying the structure of a roll-up shutter used for air conditioning or dust prevention.

Therefore, the disclosed invention relates to a structure in which a winding device having a rotational drive mechanism provided at the upper part of the entrance/exit opens and closes by winding up a partition body whose both side edges are guided. The body is made of vinyl chloride with a weight on the hanging part, or a thin soft material such as cloth, and the partition has a thick part in the center to prevent deviation during winding. This relates to a simple shutter.

Generally, strong security doors are installed at the entrances and exits of factory buildings, but in cases where products, materials, or workers frequently enter and exit through the entrances, such as in automobile manufacturing factories, for example, In order to improve the efficiency of air conditioning in the factory, it is necessary to install a simple shutter that can be opened and closed frequently in addition to the security door.

As a conventional simple shutter, an air curtain with a steam coil or an automatic door in which a single simple door opens and closes automatically has been used.

However, among the above-mentioned conventional methods, air curtains have the drawbacks of high equipment costs and running costs for blowing and lowering hot air, as well as insufficient prevention effects against wind intrusion and inferior indoor and outdoor insulation effects. Furthermore, as mentioned above, automatic doors have the disadvantages of high equipment cost, slow door opening/closing speed, poor work responsiveness, and hindering work progress.

The purpose of this invention is to use a thin soft material such as vinyl chloride material as the partition and to be able to reliably wind it up without biasing it, in view of the problems of the simple shutter based on the above-mentioned conventional technology. It is an object of the present invention to provide an excellent simple shutter that eliminates the above disadvantages and eliminates the disadvantages.

The structure of this invention, which meets the above objectives, is that the entrance and exit of the factory building is usually blocked by a partition made of thin soft material, which provides heat insulation and dustproof functions for air conditioning in the factory. When products or workers pass through, the hoisting device above the entrance is activated, and the partition made of lightweight soft material is quickly hoisted up with a light load, allowing for quick re-closure after workers pass through. The gist is that when winding up the partition, the winding tension of the partition is balanced so that the winding work is done to prevent uneven winding. be.

Next, an embodiment of this invention will be described below based on the drawings.

In Fig. 1.2.3, reference numeral 1 is a simple shutter based on this invention, which is installed at an entrance 3 opened in a side wall 2 of a factory through a well-known security side door 4 and the side wall 2. It is set up.

The structure of the simple shutter 1 is such that a winding device 5 is provided above the entrance/exit 3, and the winding device 5 is a double flange type true cylindrical winding device as shown in detail in FIG. A drum 6 is supported by support bearings 8, 8 via a rotating shaft 7 and attached to the side wall 2, and a pulley 9 fitted to the rotating shaft 7 is connected to a brake motor 1 with a reducer via a belt 10.
1 main shaft pulley 12.

Reference numeral 13 indicates a partition body that embodies the gist of this invention, and is made of vinyl chloride material as a thin soft material.As shown in detail in the cross section in Fig. The parts are superimposed so that a multi-layer attachment part 14 as a thick part is formed at the part, and the parts are joined by adhesion, sewing, etc. as appropriate to form a thick part.

The upper part of the partition body 13 is wound around the winding drum 6, and a rod-shaped weight body 15 is attached to the hanging part, and both ends of the weight body 15 are provided on both sides of the entrance/exit port 3. The guide frame 16 is engaged with the guide frame 16 to guide the vertical movement.

Incidentally, reference numerals 17, 17, and 17 are limit switches disposed on the side wall 2, which are capable of detecting the completely closed position and open position of the partition body 13.

In addition, a passage detection device (not shown) using optical means or the like is provided at predetermined locations inside and outside the entrance/exit where the simple shutter 1 is installed, and the device controls the brake motor with a reducer via a control device (also not shown). It is connected to 11.

In the above configuration, when the factory is in operation, the security door 4 of the entrance 3 is opened and only the simple shutter 1 is used.

In a normal state where no working tools or products pass through, the partition 13 is left hanging down as shown in FIG. 1, and the entrance/exit 3 is closed by the partition 13.

As a result, the air inside and outside the factory is blocked, the air-conditioned temperature inside the factory can be maintained, and unlike an air curtain, wind does not enter through the entrance/exit 3, so that a dust-proofing effect can be achieved.

Next, when a worker or a product transport trolley approaches the entrance/exit 3, a passing detection device (not shown) detects this, and a brake motor 11 with a reducer is activated via a control device (also not shown).
start.

As a result, the rotational driving force of the brake motor 11 with a speed reducer is transmitted to the rotating shaft 7 via the pulley 12 and bell 10, and the partition 13 is wound up by the winding drum 6. Since it is made of aluminum and is light in weight, it can be lifted and opened relatively quickly in a short period of time, and the load on the motor 11 is extremely small, resulting in low power consumption.

Furthermore, when winding up the partition body 13, since the partition body 13 has a thick part in the center due to the multilayer attachment part 14, when the partition body 13 is wound up on the winding drum 6, the shape of the wound outer surface is as shown in FIG. Since it has a convex shape as shown in Fig. 1, the winding tension is concentrated in the center of the partition and balanced, and the partition 13 is wound without being biased toward the end of the winding drum 6, resulting in a smooth winding. The shutter is opened.

That is, providing the multilayer attachment part 14 at the center of the partition 13 means that the partition, which is molded in one piece and does not have any thick part, is wound on the winding drum 6' having a convex shape as shown in FIG. It is also possible to achieve a bias winding prevention effect equivalent to that of the above.

Next, a worker or the like passes through the opened entrance/exit 3, and when this is detected by the other passage detection device (not shown), the motor 11 is reversed via the control device to remove the partition 13 from the winding drum 6. The partition body 13 quickly descends together with the tension of the weight body 15, and the simple shutter 1 is closed.

Note that the embodiments of this invention are not limited to the above-mentioned embodiments; for example, the material of the partition body 13 may be cloth,
It may be made of paper etc. that has been subjected to waterproof treatment.Also, as a structure in which the partition body has a thick part, a short piece of soft material is separately attached to the center of a sheet of thin soft material that has the entire width of the entrance/exit. Alternatively, the central part of a single sheet of soft material may be folded out and attached, or one sheet of soft material may be formed so that only the central part is thicker.

Further, if a winding drum having a convex shape as shown in FIG. 5 is used, deflection toward the end of the drum during winding of the partition can be even more effectively prevented.

As mentioned above, according to this invention, a thin soft material such as vinyl or cloth is used as the partition body to be rolled up by the winding device, so the partition body is lightweight and the winding load by the winding device is small, so that the shutter Opening and closing can be performed quickly and the necessary power can be saved, and it has an excellent effect that it can be used for entrances and exits that require frequent opening and closing.

In addition, although the door can be opened and closed easily, the shutter function of the entrance and exit can be sufficiently achieved, so that the dustproof function, windproof function, and air conditioning temperature maintenance function can be achieved.

Furthermore, by providing a thick wall part in the center of the partition of the thin soft material that is wound up on the winding drum, even if a perfectly cylindrical winding drum is used as described above, the outer shape of the winding is convex. The shape allows the winding tension to concentrate at the center of the partition, achieving balance, allowing the partition to be wound without being biased toward the ends of the winding drum, and providing an excellent effect of smooth lifting and lowering of the partition. It is played.

Further, a winding drum having a true cylindrical shape is particularly advantageous in that manufacturing costs can be reduced because it is not difficult to manufacture unlike a drum having a convex shape as shown in FIG.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention; FIG. 1 is an overall front view, FIG. 2 is a side view, and FIG. 3 is a plan view. Further, FIG. 4 is an explanatory diagram of the drum, and FIG. 5 is a reference diagram regarding the drum. 3... Entrance/exit, 11... Rotation drive mechanism, 5... Winding device, 6... Winding drum, 13... Partition Body, 16... Guide frame, 15... Weight body, 1... Simple shutter, 14... Thick wall portion.

Claims (1)

[Scope of utility model registration request] A hoisting device having a rotational drive mechanism is provided at the upper part of the doorway, and both edges of the partition that is wound up on the winding drum of the hoisting device are engaged with guide frames provided on both sides of the doorway, so that the partition hangs down. A simple shutter made of a single thin soft material with a weight provided in the portion thereof, characterized in that the thin soft material wound on the winding lid drum has a thick portion in the center. A simple shutter.