JPS5817898Y2 - quick shutter - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a side-opening quick shutter that opens and closes quickly and accurately in order to protect against the cold near entrances and exits and maintain air conditioning in factories.

Conventional entrance/exit sealing methods include, for example, using shutter-type electric shutters, automatic doors, and heated air curtains, but shutter-type electric shutters are slow and impractical; Automatic doors and warm air type air curtains have a disadvantage in that equipment costs are high, and in the case of hot air type curtains in particular, steam consumption is large, resulting in high operating costs.

This invention uses a single motor to open and close multiple doors, and also allows the doors that are located far from the door storage area, which are frequently visited, to move quickly and to be used in a side-opening type. An embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, 1 is a first opening/closing door on the right side, 2 is a second opening/closing door on the right side, 3 is a third opening/closing door on the right side, and 4 is a fourth opening/closing door on the right side.

The first opening/closing door 1 is provided on the side with the highest traffic frequency, that is, it is located farthest from the storage section (not shown) of the door provided at the right end, and the second opening/closing door 2 is next, the third opening/closing door 3 is next, and so on.

Further, each of the opening/closing doors 1 to 4 is individually suspended from an upper rail 5 installed horizontally in parallel via each roller 6, and each has a guide rod 7 at the lower part. They are provided so as to be horizontally openable along the lower rails 8 each having a concave cross section.

Similarly, there are multiple opening/closing doors on the left side, which open sideways, but in Figure 1, the first opening/closing door 1' on the left side is provided.
Only one part is shown, and the other parts are omitted.

In Fig. 2, 9 is a motor, 10 is a main shaft for driving the door,
This main shaft 10 has a first sprocket 11 for driving the first opening/closing door 1. A second sprocket 12 for driving the second opening/closing door 2, a third sprocket 13 for driving the third opening/closing door 3, and a fourth sprocket 14 for driving the fourth opening/closing door 4 are installed. Moreover, a main sprocket 15 is also attached.

The first sprocket 11 has the largest diameter, that is, the largest number of teeth, the second sprockets 1 to 12 are the next largest, the third sprocket 13 is the next largest, and the fourth sprocket 14 has the largest diameter. is the smallest.

Further, 16 is a first endless chain that is hung on the first sprocket 11 and has a part fixed to the first opening/closing door;
A second endless chain 17 is hung on the second sprocket 12 and has a portion fixed to the second opening/closing door 2.
8 is a third endless chain 19 which is hung on the third sprocket 13 and has a part fixed to the third opening/closing door 3;
is a fourth endless chain that is hung on the fourth sprocket 14 and has a portion fixed to the fourth opening/closing door 4.

Reference numeral 20 denotes motor side sprockets 1 to . 20 attached to the rotating shaft of the motor 9. 21 is a spur gear attached to the main shaft 10, 22 is a spur gear meshing with the gear 21, 23 is a sprocket fixed to the shaft of the gear 22, and 24 is an endless chain.

These spur gears 21.22 and sprockets 1-23.15'
The endless chain 24 constitutes a connecting means for simultaneously opening and closing the left and right doors in the left and right directions.

Note that a device similar to the one on the right side is also provided for the left-hand opening/closing door group.

That is, the first sprocket 11' is attached to the main shaft 10' for driving the door.
The second sprocket 12', the third sprocket 13', the fourth sprocket 14', and the main sprocket 15' are attached, and the first endless chain 16', the second sprocket
Endless chain 17', third endless chain 17'
, a third endless chain 18', a fourth endless chain 19', etc. are also provided.

In the quick shutter configured in this way,
The motor 9 transmits forward rotation to the door drive main shaft 10 via the sprockets 20 and 15, causing the sprockets 11 to 14 having different numbers of teeth to rotate forward.

Then, the endless chains 16 to 19 hung on the sprockets 11 to 14 also rotate forward, and the doors 1 to 4 attached to each are smoothly opened by the rollers 6 housed in the rails 5.

Further, when the motor 9 is rotated in the reverse direction, the opening/closing doors 1 to 4 are closed.

Here, the diameter of the first sprocket 11>the diameter of the second sprocket I
・Diameter of 3rd sprocket 13> 4th sprocket I
In other words, the number of teeth on the first sprocket 11 > the number of teeth on the second sprocket 12 > the third sprocket 13
Since the number of teeth of the fourth sprocket 14 is greater than the number of teeth of the fourth sprocket 14,
Speed of endless chain 16〉Second endless chain 1
7 speed>Speed of third endless chain 18>Speed of fourth endless chain 19, therefore, speed of first opening/closing door 1>Speed of second opening/closing door 2>Speed of third opening/closing door>Fourth opening/closing door 4 In other words, since the opening/closing door located far from the door storage section moves quickly, the sprocket 11
The number of teeth of ~14 is determined to set the respective speeds so that the opening/closing doors 1 to 4 finish opening and closing at the same time.

In order to operate the left door group, the spur gear 22 is meshed with the spur gear 21 attached to the main shaft 10 for driving the door, that is, the direction of rotation is reversed by the spur gear 22, and the sprocket 23 is reversed. Torque is transmitted to the left door drive main shaft 10' via the endless chain 24 and sprocket 15', and the following operations are carried out by the aforementioned right opening/closing door groups 1 to 4.
Open and close the left-side opening/closing door group in the same manner as above.

In this way, one motor 9 can open and close a group of symmetrical doors, and the doors that are opened and closed by this drive are suspended by rollers 6 to stop them from swinging in the direction of movement, and the lower part Shaking due to wind is prevented by the guide rod 7 and the concave rail 8 laid on the ground.

The quick shutter configured as described above detects an object using a detector such as a sonic detector or a phototube, and automatically opens and closes using the detector and a control device such as a timer.

Therefore, the quick shutter of the present invention can open and close the left and right doors at the same time using a single motor, and since the door located far from the door storage area moves quickly, it is suitable for use in frequently used entrances and exits. On the other hand, since it can be opened and closed quickly, it is easy to take measures against the cold near the entrance and maintain the air conditioning in the factory, and it has a simple structure, both equipment costs and operating costs are significantly reduced.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a partially cutaway front view, and FIG. 2 is a plan view with some illustrations omitted. In the diagram, 1, 2, 3. 4... Opening/closing door, 5...
...Top rail, 6...Roller, 7...
・Guide rod, 8...Lower rail, 9...
Motor, 10... Door drive main shaft, 11.12.
13,14゜15... Sprocket), 16.1
7,18.19... Endless chain, 20.
...Sprocket), 21.22...Spur gear, 23...Sprocket, 24...
Endless chain.

Claims (1)

[Scope of utility model registration request] In a horizontally opening shutter having a plurality of opening/closing doors each suspended from a plurality of parallel horizontally installed rails via rollers, the plurality of opening/closing doors are each hung symmetrically from the same rail to allow left and right opening. and a door opening/closing sprocket provided corresponding to each of the plurality of opening/closing doors of the left and right opening/closing doors, and a door opening/closing sprocket provided for each of the opening/closing doors and fixed in part to the corresponding opening/closing door. The left and right opening/closing doors are created by linking an endless chain provided to be driven by the opening/closing sprocket, one motor that drives the door opening/closing sprocket, and the plurality of symmetrically provided opening/closing doors. connecting means for simultaneously opening and closing in opposite directions, and
A quick shutter characterized in that the diameter of the door opening/closing sprocket for the opening/closing door located far from the iron door storage area is increased so that the opening/closing door located far from the storage area of the door moves quickly. .