JP3110910B2 - Elevator for clean room - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator for a clean room.

[0002]

2. Description of the Related Art A conventional clean room elevator will be described with reference to FIG.

An elevator running in a building having a clean room always purifies the air in the car so that the car does not carry dust into the clean room.

[0004] To purify the air, air is removed by a pre-filter 2 provided at a suction port 1 in the lower part of the car, passes through a duct 3 and further passes through a blower 5 provided at the car ceiling.
Through, except for the finer dust high-efficiency filter 4 through the punched plate 6 having a large number of holes to obtain a uniform shower effect on the cab, that purifies circulated again to the basket General.

[0005]

[Problems that the Invention is to Solve In this configuration, open the clean room floor, the cage between both the elevator non clean room floor facing the ambient air (typically floor) travels, the general floor smell Heck your door 7 When contaminated air enters the car, the car is contaminated. For this reason, it becomes impossible to run the elevator across the clean room floor and the general floor, which is inconvenient.

Therefore, the present invention is intended to prevent a decrease in cleanliness in the car by preventing the contaminated air from entering the car from the general floor by pressurizing the inside of the car when the car arrives at the general floor. That is the purpose.

[0007]

[MEANS FOR SOLVING THE PROBLEMS] To achieve the above object
The present invention relates to an element for landing on a clean room floor and a general floor.
Beta, inside the basket and duct with filter
To keep the air in the car clean at all times.
In a lean room elevator, the car
During floor landing, pressurize the inside of the car, and during landing in the clean room floor
Equipped with a device that does not pressurize the inside of the car.
You .

[0008]

[0009]

[Function] With the above configuration , the clean room floor and the general floor are provided.
In the elevator to the landing, the car is wearing to the floor in the general floor
When contaminated air from the general floor enters the car,
When you are on the clean room floor
Acts to prevent contaminated air from entering the clean room from inside .

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the embodiments shown in FIGS.

A shutter 9 is provided in the car duct 3 to open and close the air intake opening toward the hoistway and guided by a slide 14 to open and close. At the tip of the shutter 9, a roller 10
And a push rod 11 for opening and closing provided with a spring 12 for return. On the other hand, the push rod 11 is placed at a predetermined position on the general floor.
Is provided.

With such a configuration, when the car travels to the general floor and lands on a predetermined position, the push rod 11 is pushed by the cam 15 and the shutter 9 is forcibly opened. Therefore, the air intake opens in the duct and the blower
5 , air in the hoistway is taken in, so that the amount of air flowing into the car increases. Like this, the basket
By the device, such as a shutter 9, the inflow is blocked of contaminated air in the general floor from the general floors to increase the air pressure in the car
On the contrary, on the clean room floor, shutter 9 is closed
Since the inside of the car is not pressurized, contamination in the clean room
The inflow of air is blocked.

Since the air is collected mechanically and forcibly as described above, the reliability is high, and the prevention of the reduction of the cleanliness in the car is ensured. The elevator for the clean room can be safely used for general use. It will be available.

[0014]

According to the present invention, even if the elevator car for a clean room stops on the general floor, the inflow of dirty air into the car is prevented, so that the elevator sharing the clean room floor and the general floor can be used. And improved elevator service.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a clean room elevator according to the present invention;

FIG. 2 is a partially detailed sectional view of FIG. 1;

FIG. 3 is a side view of FIG. 2;

FIG. 4 is a front view of a car of a conventional clean room elevator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Inlet 3 ... Duct 4 ... Filter 9 ... Shutter 10 ... Roller 11 ... Push rod 12 ... Spring 14 ... Guide 15 ... Cam

Claims (3)

(57) [Claims] 1. Landing on a clean room floor and a general floor
A elevator, and in the car, by forced circulation between the duct with a filter, in a clean room for the elevator which always clean the cage in air, in the car, the in the general floor landing in the car under pressure, Cree
An elevator for a clean room, which is provided with a device that does not pressurize the inside of a car during landing on a floor . Wherein the air inlet and a shutter arranged in the duct, clean room elevator according to claim 1 wherein characterized in that also collecting duct outside air from the inlet. 3. The clean room elevator according to claim 2, wherein the shutter is forcibly opened when landing on a general floor.