JPS61242293A - Airtight door - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention is designed to automatically seal the gap between the lower part of the sliding door and the floor when closing a sliding door such as a two-sided sliding door. Regarding airtight doors that are sealed with wood.

(Prior Art) The present applicant previously proposed the airtight door shown in FIG. 11 for use in rooms requiring airtightness such as clean rooms (Japanese Patent Application No. 59-39746).

The sliding door 48 in this airtight door is connected to the door bag 50 and the door stop frame 51 via the thing running on the hanger rail of the upper frame 49.
It runs between. When the sliding door 48 is closed, it is pulled toward the clean room side by the pulling means, and both sides and the upper side of the sliding door are connected to the frame 49, 51 and the door bag 5.
At the same time, the lower airtight material 52, which is attached to the lower part of the sliding door so as to be movable up and down over its entire length, is moved down to seal the gap 54 between the sliding door and the floor surface 53 with this airtight material. The operation of the airtight member 52 is performed through an operating means interlocked with the handle 55 by turning the handle 55 in the direction of the arrow when closing.

(Problems to be Solved by the Invention) The conventional example in which the lower airtight material is moved up and down by rotating the handle to seal the gap between the sliding door and the floor surface can reliably seal the lower gap. If it is possible to automatically move the airtight material up and down using the movement force associated with the opening/closing operation of the sliding door without operating the handle, the handle operation can be omitted and the opening/closing operation of the sliding door becomes easier. .

An object of the present invention is to enable the lower airtight member of a sliding door to be automatically moved up and down.

(Means for solving the problem) The airtight door of the present invention has a main body composed of sliding doors 1 and 1a,
A pulling means is provided to pull the sliding door to one side of the sliding door, and a lower airtight material 17 is attached to the lower side of the sliding door so as to be movable up and down over the entire length, and this lower airtight material connects the sliding door to the floor surface 18. The gap 19 can be sealed, the sliding door is provided with operating means for moving the lower airtight member up and down, and a stopper 42 for regulating the operation of the operating means is provided on the movement trajectory of the sliding door on the floor. The operating means includes airtight material pressers 20° 20a attached at regular intervals to the sliding doors 1 and 1a;
The transmitting bar 21 connects both airtight material holding bodies, and the transmitting bar is provided with an actuating body 37 that can come into contact with the stopper 42. The airtight material holding body 20.208 is supported on the sliding door 1, 1a with the support shafts 24, 24a as the pivot center on the upper side, and holds the lower airtight material 17 with the support shafts 28, 288 as the pivot center on the lower side. A connecting shaft 26 which holds the body 29.29a and is attached between the holding shaft and the supporting shaft
．． It is freely bendable in the moving direction of the sliding doors 1 and 1a about 26a. The transmission bar 21 connects the connecting shafts 26 and 26a and is horizontally movable.

A spring force is applied to the transmission bar 21 by a spring body 34 in a direction to return it to its original position.

(Function) When the sliding doors Pi and la are closed, the sliding door is pulled toward one side of the sliding door by the pulling means, and if the sliding door is a sliding door, the upper end and rear end of one side (the For example, in the case of a single sliding door, all edges except the lower end of one side are in close contact with the frame. When the sliding doors 1, 1a are closed, the actuating body 37 engages the stopper 42.
As a result, the transmission bar 21 moves horizontally against the spring force, and with this movement, the connecting shafts 26, 268
To do this, the airtight material retainer 20.208 lowers the airtight material holder 29.298, and the lower airtight material 17 moves downward to seal the gap 19 between the sliding door and the floor surface 18.

When the sliding doors 1, 1a are opened, the pull is released and at the same time, the operating body 37 moves to the stopper 42 as the sliding door moves backward.
By separating from the actuator and the transmission bar 21, the actuating body and the transmission bar 21 return to their original positions, so that the airtight material pressers 20, 208 lift the holders 29, 298, and the lower airtight material 17 is separated from the floor surface 18.

In this way, the vertical movement of the lower airtight member 17 is linked to the forward and backward movements that are performed when opening and closing the lower airtight member 1a.

(Example) As an example of the present invention, an example in which the draw is applied to an automatic airtight door equipped with a sliding door will be described below based on the drawings.

In Figures 5 to 7, the sliding doors 1 and 1a run from the door pocket 2゜2a to the center of the door, and close to each other in the center to open a room R with high cleanliness and a room Ra with low cleanliness in the same clean room. Separate the two. When the sliding doors 1 and 1a are closed, they are drawn toward the room R side, which has a high degree of cleanliness, by a drawing means described later.

The sliding doors 1, 1a are provided with a hanging wheel 3 at the upper end, and this hanging wheel runs on a hanger rail 5 provided in the longitudinal direction of the upper frame 4 (left-right direction in FIG. 5). The hanging wheels 3 are attached to both ends of a slide shaft 7 that is attached to the upper end of the sliding door core a and passes through a bearing containing a slide bearing (only the bearing 6 of the sliding door 1 is shown).

There are inverted V-shaped connecting plates 8 and 8a on both ends of the slide shaft 7.
6 support part 9, which stands up from this connecting plate.
It is connected to an endless belt 10 via 9a. The connecting plate 8 of one sliding door 1 is connected to the lower belt part of the endless belt 10, and the connecting plate 8a of the other sliding door 1a (7) 31 is connected to the upper belt part. The motor 11 is installed between the transmission gear 12 of the motor 11 installed at each front and rear end of the upper frame 4 and the 7''-1, J-13.
The operation is automatically controlled. Therefore, if the transmission gear 12 rotates clockwise in FIG. 5 due to the operation of the motor 11,
The heald 10 moves in the direction of the arrow, and therefore the sliding doors 1, 1a
moves in the direction of the arrow to open the door.0 When the transmission gear rotates counterclockwise, the sliding door 1.1a closes.

In order to ensure sealing when the sliding doors 1, 1a are closed, sealing means are provided on the upper frame 42, the door bags 2, 2a, and the sliding door, respectively. That is, as shown in FIG. 7, a hollow band-shaped airtight material 14 is fixed to the inside of the upper frame 4 on the room R side, which has a high level of cleanliness, and the airtight material can be tightly attached to the upper and side surfaces of the sliding doors 1 and 1a. .

As shown in FIG. 6, a hollow band-shaped airtight material 15 is fixed vertically on the side of the door pocket (only the door pocket 2 is shown), on the side of the room Ra, which has a low level of cleanliness. The side of the rear end can be airtight. Further, hollow airtight members 16, 168 made of chloroprene rubber are attached to the mating portions of the front ends of the sliding doors 1, 1a, and both airtight members can be brought into close contact with each other. In addition, on the lower side of the sliding doors 1 and 1a, there are 1.3
゜As shown in Figure 4.7, the lower airtight material 17 is installed along the entire length.
is provided to be movable up and down, and this airtight material seals a gap 19 between the sliding door and the floor surface 18.

Here, the operation means for moving the lower airtight member 17 of one sliding door 1 up and down will be explained with reference to FIGS. 1 to 4.

Note that the operating means on the sliding door 1a side is also substantially the same as the operating means described above, so a description thereof will be omitted.

As shown in FIG. 1, airtight material presser bodies 20 and 20a bent in the shape of a letter "R" are arranged in the lower part of both the front and rear ends of the sliding door 1, and between the two presser bodies. A transmission bar 21 connecting these is provided in a horizontal state.

The specific structure of the presser foot 20 on the left side of FIG. 1 will be explained. As shown in FIG. 1.4, the presser body 20 includes an upper presser plate 22 and a lower presser plate 23, and both the upper and lower presser plates constitute a trouble joint mechanism. The upper holding plate 22 is attached to a mounting plate 25 fixed to a frame built into the sliding door 1, with its upper end portion rotating around a support shaft 24. Upper presser plate 2
The lower end portion of 2 is connected to the upper end portion of the lower press plate 23 via a connecting shaft 26. Both presser plates 22 and 23 pivot around the connecting shaft 26. The connecting shaft 26 is movable through a rectangular escape hole 27 formed in the mounting plate 25. A holding plate 29 is attached to the lower end of the lower holding plate 23 via a holding shaft 28. The lower press plate 23 pivots around the holding shaft 28. This holding shaft 28 is vertically movable within a vertically elongated guide hole 30 formed in the mounting plate 25.

Furthermore, the configuration and mounting of the presser body 20a on the right side of FIG. I have to.

Support plates 31.3 are provided on both sides of the lower part of both holding plates 29, 298.
Both ends of 2 (FIG. 4) are supported by bolts 33.

Both end portions of the lower airtight member 17 are fixedly supported at the lower portions of both support plates 31 and 32.

As shown in Fig. 1.2.4, both ends of a transmission bar 21 made of angle material are attached to the connecting shafts 26, 268. The transmission bar 21 and the mounting plate 25 are connected by a coil spring 34, which is a return spring body whose both ends are latched to support pins 33 and 338 installed in each. An auxiliary mounting plate 35 is fixed to the right end of the transmission bar 21 in FIG. It is set up. Actuation plate 3
A backing plate 38 is fixed to the lower end of 7. The middle part of the actuating plate 37 and the mounting auxiliary plate each have a shaft pin 39.398.
is installed, and a coil spring 40 is hooked to both shaft pins. A spring force is always applied to the actuating plate 37 clockwise in FIG. 1 about the shaft 36 by a coil spring 4Q. A stopper pin 4 is attached to the mounting auxiliary plate 35.
1 is installed, and the actuating plate 37 is always in contact with this pin, so that the rotation angle is regulated. Here, the interlocking relationship between the airtight material pressing bodies 20, 208, the transmission bar 21, and the lower airtight material 17 will be explained. When the transmission bar 21 moves horizontally to the right from the state shown in the first figure, the connecting shaft 26.268 moves horizontally to the right, and both the upper and lower holding plates 22 and 23.22a and 23a of the airtight material holding bodies 20, 208 are moved horizontally to the right. Transition from the bent state to the upright state, and with this transition, the holding shaft 28. 28a descends through the guide holes 30, 30a, which causes the airtight material 17 to move downward and eventually come into close contact with the floor surface 18, sealing the gap 19.

As the transmission bar 21 moves horizontally from side to side, the presser body 20.
20a bends and stands upright, and following this movement, the lower airtight member 17 moves up and down.

On the floor surface 18, as shown in FIG. 1.2.4, a stopper plate 42 is fixed with bolts 43, and a stopper piece 42a stands up from the end of the stopper plate. Stopper piece 42a
When the sliding door 1 is closed, the actuating plate 370 comes into contact with the abutting plate 3B.

The means for pulling the sliding doors 1 and 1a will be explained.

The sliding door 1 can pull the upper and lower parts together. To explain the pulling means on the upper side of the sliding door 1, as shown in FIG.
44a is the attachment. The rollers 44 , 44 a can freely run in a guide passage 45 provided in the upper frame 4 . The guide passage 45 has a bent part 45a bent toward the room R side (upper side in FIG. 8) at the intermediate part of the passage, that is, at the position corresponding to the position where the sliding doors 1 and 1a meet. Therefore, the roller 44
．． 44a changes its running direction when the sliding door 1.1a is closed, as shown by the arrow in FIG. To explain the means for pulling the lower part of the sliding door 1, 1a, as shown in Fig. 1.3.9, a roller 46 is attached to the upper part of the port 43 to which the stopper plate 42 is fixed. This roller is for sliding door 1,
They can run freely in guide passages 47, 47 provided in the lower part of 1a. As shown in FIG. 9, the guide passage 47.47 has a bent portion 47a formed on the rear end (right end) side toward the room Ra (lower side in FIG. 9). For this reason, sliding doors 1, 1
When closing a, the lower side is moved to the room R side.

Next, the effect will be explained.

First, the case of closing the sliding doors 1 and 1a will be explained.

When the sliding doors 1, 1a are open, they are in the position shown by the solid line in FIG. 9, and a gap 19 is provided between the sliding doors and the floor surface 18.

Due to the operation of the motor 11, the transmission gear 12 rotates clockwise in FIG. 5, and the sliding doors 1, 1a travel toward the center of the door and are then closed.

During closing, the rollers 44.44a and 46 run along the bends 45a and 47a of the guide passage 45.47, so the sliding doors 1 and 1a are drawn toward the room R, which has a high level of cleanliness.

At the same time, the contact plate 38 of the actuating plate 37 comes into contact with the stopper piece 42a of the stopper plate 42, and the sliding doors 1, 1a try to close roughly, so that the transmission bar 21 is different from the running direction of the sliding door in its relative relationship with the sliding door. It moves horizontally in the opposite direction (to the right in Figure 1), and at the time of closing, as shown in Figure 10, both the upper and lower presser bodies 22, 23 and 22a, 23a are made to stand upright, so that the holding plate 29 descends and the lower part The airtight material 17 moves down to the floor surface 18
and seals the gap 19.

In this way, the sliding doors 1, 1a are pulled together and the airtight member 17 is moved downward, thereby closing the doors.

Next, the case where the sliding doors 1 and 1a are opened will be explained.

When the sliding doors 1 and 1a are opened and closed by the operation of the motor 11,
Since the contact plate 38 of the actuating plate 37 separates from the stopper piece 42a, the spring force of the coil spring 34.40 causes the transmission bar 21 and the actuating plate 37 to return to their original positions. As shown in FIG. 1, the retaining plates 29 and 29a are bent again into a ``chest'' shape, and the airtight material 17 is moved upward and returned to its original position. When opened, the upper and lower rollers 44, 44a, 46 are in the guide path 45.4.
7 bent portions 45a and 47a@sliding door to escape], the pull of core a is released.

Note that the airtight door is not limited to a door that partitions the same direction of a clean room, but can be used widely, for example, for a door that partitions a clean room and a hallway.

In addition, the actuating plate 37 is fixed to the transmission bar 21.
Mo (7) 'r may be.

(Effects of the Invention) According to the present invention, since the lower airtight member is moved vertically and vertically (alP(7)) (te), the bow IP (DM
The gap between the floor and the floor during locking can be automatically sealed without manual intervention, and the opening and closing operations of the airtight door are simple and easy. It becomes possible to enter and exit rooms that require airtightness.

[Brief explanation of the drawing]

Figure 1 is a front view of the operating means for the lower airtight material, Figure 2 is the
Figure 3 is a sectional view taken along the line z-ms in Figure 1, Figure 4 is a sectional view taken along line IV-IV in Figure 1, Figure 5 is a front view showing the sliding door in the closed state, and Figure 6 is a sectional view taken along the line IV-IV in Figure 1. The figures are an enlarged sectional view taken along the line Vl-Vl in Fig. 5, Fig. 7 is a longitudinal sectional view of the sliding door, Fig. 8 is an explanatory diagram showing the relationship between the upper guide passage and the sliding door, and Fig. 9 is a lower guide passage and the sliding door. Figure 10 is a front view showing the sealed state of the lower airtight material, Figure 11 is an explanatory diagram showing the relationship between
The figure is a partially cutaway front view of a conventional example. 1.1a...Sliding door, 17...Lower airtight material, 18...
・Floor surface, 19...Gap, 20.208...Airtight material presser, 21...Transmission bar, 24.248...Support shaft, 26.26a...Connection shaft, 28.288. ... Holding shaft, 29.298... Holding body, 34... Spring body, 37... Operating body, 42... Stopper, 44.44a, 45, 45a, 46, 47° 47a...
- Attraction means. Figure 8 Scale Figure 11

Claims (1)

[Scope of Claims] A sliding door, a pulling means for pulling the sliding door to one side of the sliding door, and a pulling means that is attached to the lower side of the sliding door so as to be movable up and down over the entire length, so that the gap between the sliding door and the floor can be sealed. a lower airtight material, an operating means provided on the sliding door to move the lower airtight material up and down, and a stopper provided on the movement trajectory of the sliding door on the floor to restrict the operation of the operating means, The means is such that airtight material pressers are attached to the sliding door at regular intervals so as to be able to swing about the support shafts, and the airtight material holder is attached to the lower part of both of the pressers so that the airtight material holder is pivoted about the holding shaft. The presser body is bent in the moving direction of the sliding door around a connecting shaft provided between the supporting shaft and the holding shaft, and a transmission bar is installed horizontally between the connecting shafts, An airtight door characterized in that an actuating body is attached to the transmission bar, the actuating body can come into contact with the stopper, and a spring force is applied to the transmission bar in a direction to return it to its original position.