JPH0786073B2 - Carrier - Google Patents

Description

Detailed Description of the Invention [Industrial applications]

This invention is an elevator for putting things in and out of a clean environment part in a building, a so-called clean room,
The present invention relates to a transfer device such as a dam waiter or a duct type horizontal transfer device.

[Prior art]

Usually, in a factory or the like having a clean room, the cleanliness is maintained at the entrance / exit of the clean room by an air purifying device, but the inside of the moving path where the carrier moves is often not cleaned due to economical reasons. Such a conventional transfer device is used as an example of an elevator.
It will be described with reference to the drawings. In FIG. 5, 1 is a hoistway that is a moving path, 2 is a peripheral wall that surrounds the hoistway 1, and 3 is a clean environment part provided on a required floor of the building, that is, a clean room 4, and the peripheral wall 2 The entrances and exits 5 formed in 1 are outer doors that open and close the entrances and exits 3 of the hall, and are supported by the outer door frame 5a so as to be slidable in the vertical direction. The outer door 5 is rotated up and down by rotating the pulley 7 by an outer door electric motor 6 fixed to the peripheral wall 2 and a weight 9 connected to the other end of the pulley 7 via a wire rope 8 hung on the pulley 7. It is configured to be opened and closed by moving in the direction. 10 is hoistway 1
Carrying equipment or car that moves up and down inside, 11 is a hoisting machine arranged above the hoistway 1, 12 is a pulley, 13 is a main rope supported by a pulley 12 hung on the sheave 1a of the hoisting machine 11. There is a car 10 at one end and a counterweight 14 at the other end. Then, the car 10 moves up and down the hoistway 1 through the main rope 13 by the driving of the hoisting machine 11 and stops at a position facing the doorway 3 as in a normal elevator. Reference numeral 15 denotes a car doorway provided in the car 10 so as to face the doorway 3, and 16 denotes an inner door that opens and closes the doorway 15, and is supported by an inner door frame 16a so as to be vertically slidable. The inner door 16 is rotated in the vertical direction while the pulley 18 is rotated by an inner door electric motor 17 provided on the car 10 and a weight 20 connected to the other end of the pulley 18 via a wire rope 19 hung on the pulley 18. It can be opened and closed by moving to. This is the same as the case of the outer door 5.

[Problems to be Solved by the Invention]

In the conventional elevator described above, when an object or person is put in or taken out between the car 10 and the clean room 4, the inner door of the car 10
By opening and closing 16, the inside of the car 10 communicates with the inside of the hoistway 1 and becomes dirty air like this, and the car 10 stops at the landing of the clean room 4, and the outer door 5 of the landing and the inner door of the car 10
There is a problem that when the door 16 is opened, the dirty air in the car 10 and the hoistway 1 enters the clean room 4 to contaminate the clean room. To solve this problem, for example, Japanese Utility Model Application No. 60-135705
Although a bellows is provided between the inner door and the outer door as in Japanese Utility Model Publication No. 62-44884, it is still necessary to completely prevent dirty air from entering the clean room. I couldn't. [Means for Solving Problems] In order to completely prevent dirty air from entering a clean room, the present invention relates to a moving path surrounded by a peripheral wall and provided with an entrance / exit at a proper position on the peripheral wall, and a moving path. A transporter that moves in the passage and stops opposite the entrance and exit of the peripheral wall, a purification device for air in the transporter that has a filter and a blower that is provided in the transporter, and is provided between the movement passage and the clean environment portion. An outer door that opens and closes the entrance and exit, and an inner door that is installed in the carrier so as to face the outer door to open and close the entrance and exit of the carrier, and opens after the carrier opposes the entrance and exit of the peripheral wall And an expansion and contraction communication passage wall which is provided in the transporter and is connected to the periphery of the inner door and is capable of pressure contact with the periphery of the outer door, and the expansion and contraction communication passage wall installed in the transporter to expand and contract, and after the inner door is opened. Of the outer door A drive device that extends the expansion and contraction communication passage wall before the opening operation and presses it against the outer door frame around the entrance and exit of the peripheral wall, and after the carrier arrives at the entrance and exit, the inner door is opened and the inside of the communication passage A conveying device, characterized in that after the dirty air is extruded into the moving furnace by the purified air from the inside of the carrier, the communication passage wall expands and the outer door is opened after the pressing is completed. Is what you are trying to do.

【Example】

An embodiment of the present invention will be described below with reference to FIGS. 1 to 3, the same reference numerals as those in FIG. 5 denote the same or corresponding parts, and 21 is a device for purifying the air in the car 10, which is a rear part of the car 10. From the ceiling 10a to the duct 22 in the duct 22 and HEPA (High
Efficiency Particulate Air) A filter 24 composed of a filter is provided, and a communication port 26 in the cab 25 communicates with a suction port 27 in the hoistway 1 which is a moving path and a suction side of the blower 23 communicates with the ceiling. 10a
An outlet 28 to the inside of the basket room 25 is provided. Reference numeral 29 denotes an expansion and contraction communication wall having a rectangular bellows shape, and one end of the communication passage wall 29 is fixed to the front surface of the inner door frame 16a around the car doorway 15. 3
Reference numeral 0 denotes a drive device such as a cylinder mechanism fixed to the front end of the top surface of the car 10, and the advancing / retreating rod 31 of the drive device 30 is connected to the communication passage wall 29. Is the same as the conventional one shown in FIG. Next, the operation of this embodiment will be described with reference to the time chart of FIG. As shown in Fig. 1, when the car 10 does not reach the landing of the clean room 4, the inner and outer doors are
16,5 are closed. Also, the blower of the purifier 21 of the basket 10
The air in the car room 25 is
Through the filter 24, dust and the like are captured, the air in the cab 25 is cleaned, and the air in the hoistway 1 is sucked from the suction port 27. , A pressure higher than that in the hoistway 1 is maintained. In addition, a part of the duct 22 on the blower 23 suction side is slightly negative pressure. Further, the expansion and contraction communication passage wall 29 is held in a shortened state, and in this state, the communication passage wall 29 is prevented from interfering with the member protruding into the hoistway 1 such as the outer door frame 5a of the clean room 4 and the car 10 is Raised and lowered. After the car 10 has landed on the landing of the clean room 4 and stopped as shown in FIG. 4, only the inner door 16 is opened as shown in FIG. 4. In this state, as shown in FIG. Since the air in the chamber 25 is blown forward from the communication passage wall 29, the dirty air in the communication passage wall 29 is pushed into the hoistway 1. After that, the drive device 30 is driven to move the advancing / retreating rod 31 forward so that the communication passage wall 29 is extended as shown in FIG. 4, and this is extended to the outer door frame 5a around the entrance / exit 3 of the hall of the clean room 4. It is pressed so that the dirty air in the hoistway 1 does not enter the clean room 4 and the car room 25 from between this and the communication passage wall 29. Further, thereafter, as shown in FIG. 4, the outer door 5 is opened to communicate the landing of the clean room 4 with the car room 25, and the clean room 4 and the car room 25 are connected via the communication path in the communication path wall 29. Put things in and out of people. Thereafter, the inner and outer doors 16 and 5 are closed, and the operation of the drive device 30 shortens the communication passage wall 29 to separate it from the outer door frame 5a at the landing.
Return to the state shown in the figure and raise and lower the car 10. In addition, basket
In the state where the inner door 16 of 10 is opened, the pressure in the car room 25 is high, and the purified air in the car room 25 is blown out to the hoistway 1, so the air in the hoistway 1 enters the carrier 25. There is no intrusion. Also, if there is another similar clean room on the floor other than the clean room 4, the above-mentioned operation is performed for this room as well, but if there is a normal hall other than the clean room 4, the normal hall is used. Then, the communication passage wall 29 is left shortened without performing the above-described operation. The case where the carrier device of the present invention is applied to an elevator has been described above, but the present invention is not limited to an elevator and can be applied to other carrier devices such as a horizontal carrier device using a dam waiter or a clean dough.

【The invention's effect】

According to the present invention, after the carrier arrives at the entrance / exit, the inner door (the door on the car side) is opened, and the dirty air in the communication passage is pushed into the moving path by the purified air from the inside of the carrier. After that, the communication passage wall expands and the outer door (door on the clean room side) is opened after the pressing is completed. Therefore, it is possible to completely prevent the dirty air in the communication passage from entering the clean room. .

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing a main part of a conveying apparatus according to an embodiment of the present invention immediately after a car is stopped, FIG. 2 is a vertical sectional side view with the inner door opened, and FIG. FIG. 4 is a vertical side view of the state in which the passage wall is extended, FIG. 4 is a time chart for explaining the operation of the transfer device according to one embodiment of the present invention, and FIG. 5 is a vertical side view of the conventional transfer device. 1 ... hoistway (moving path), 2 ... peripheral wall, 3 ... doorway,
4 …… Clean room (clean environment part), 5 …… Outer door,
10 …… Car (carrying machine), 15 …… Car entrance, 16 …… Inner door,
21 …… Air purifier inside the carrier, 22 …… Duct, 23
…… Blower, 24 …… filter, 25 …… cab, 26 …… communication port, 27 …… suction port, 28 …… blowing port, 29 …… expansion communication passage wall, 30 …… drive unit. The same reference numerals in the drawings indicate the same or corresponding parts.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroshi Watanabe 1 Hishimachi, Inazawa City, Aichi Prefecture Inazawa Works, Mitsubishi Electric Corporation (56) References JP-A-61-124486 (JP, A) -44884 (JP, U) Actual opening 60-170378 (JP, U) Actual opening 61-130568 (JP, U)

Claims (1)

[Claims] 1. A moving path surrounded by a peripheral wall and provided with an entrance / exit at an appropriate position on the peripheral wall, a carrier that moves in the moving path and stops in opposition to the entrance / exit of the peripheral wall, and a filter provided on the carrier. A device for purifying the air inside the carrier having a blower, an outer door provided between the moving path and the clean environment portion to open and close the entrance and exit, and the carrier arranged on the carrier so as to face the outer door. The inner door that opens and closes the entrance and exit of the peripheral wall after the carrier is stopped facing the entrance and exit of the peripheral wall, and the expansion and contraction link that is connected to the periphery of the inner door and is press-contacted to the periphery of the outer door provided in the carrier. The passage wall and the expansion / contraction communication passage wall installed in the carrier are expanded / contracted, and the expansion / contraction communication passage wall is expanded before the opening operation of the outer door after the inner door is opened to extend the outer door around the entrance / exit of the peripheral wall. With a drive device that presses against the frame After the carrier arrives at the doorway, the inner door is opened, and the dirty air in the communication passage is pushed out by the purified air from the inside of the carrier into the moving path, and then the communication passage wall extends. A conveying device, wherein the outer door is opened after completion of pressing.