JPH01151681A - Airtight sealing device for opening - Google Patents

Abstract

PURPOSE: To improve the safety by forming a part of a bulkhead side rail for guiding a panel body side roller with a movable rail at a position facing to the opening at a right angle, and rocking the panel body between a traveling surface and a position, in which the panel body air-tightly contacts with the bulkhead. CONSTITUTION: A part of a rail for suspending a panel body 4 is formed freely to be rocked in response to position of a roller at a panel body 4 closing position, and a rail bar 15 is moved between a traveling guide position continued to a fixed rail and a sealing position, in which the rail bar 15 is fallen to a bulkhead 1 side. Two pairs of rollers 5 are arranged in an upper part of the panel body 4 in right and left thereof through a roller bracket 10. The panel body 4 is laterally moved to the closing position facing to the opening at a right angle, and the panel body 4 or a rail 6B is directly operated so as to rock the rail 6B to the bulkhead 1 side, and the panel body 4 is tightly fitted to a bulkhead 1 side packing 8 so as to air-tightly seal the opening.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a device for airtightly closing an opening provided in a doorway or window of a building, or in a storage room, furniture, etc. The object is a type in which a panel body to be opened and closed is guided by a rail and moves laterally along a partition wall like a sliding door to open and close an opening, and the panel body is pressed tightly against the partition wall in the closed position.

[Conventional technology]

For example, in a sliding door device, in order to airtightly close an entrance/exit, it is necessary to move the door panel from a running surface defined by a seal on the partition wall to the entrance/exit side so as to bring it into close contact with the partition wall. One of the means for moving the door panel toward the partition wall is to move a portion of the rail obliquely in parallel toward the doorway (Japanese Patent Publication No. 10434/1983).

In this case, the fixed rail, which makes up most of the rails, and the movable rail, which is provided in a closed state corresponding to the roller position when the door panel is in the closed state directly facing the doorway, are configured in a straight line, and the movable rail is parallel to the partition wall. By moving the door panel, the door panel is brought into close contact with the partition wall via the rollers supported on the rail. The number of movable rails corresponding to the number of rollers provided is the same, and the movable rails are generally provided at two locations above the entrance/exit.

[Problem that the invention seeks to solve]

In the conventional device described above, at the same time that each roller rides on the corresponding movable rail, the door descends under its own weight to the closed position. In other words, there is a risk that the door may suddenly fall and switch to the closed position regardless of the user's intention. Therefore, if the user is not familiar with the functions of the door, there is a risk that a foreign object may become caught between the door and the floor, or in some cases, two limbs may become caught between the door and the peripheral wall of the entrance. This is particularly dangerous when the weight of the door is large.

Furthermore, when the door is opened and closed, the rollers on the closed end side pass on movable rails corresponding to the rollers on the open end side.

At this time, it is necessary to prevent the movable rail from sinking.

Therefore, movable rails require a locking device to prevent sinking, which operates only when the rollers on the closed end side pass, making the rail structure complicated.

This had the disadvantage of increasing production costs.

It is also difficult to operate the door panel when opening the entrance. The movable rail moves diagonally downward in a straight line relative to the fixed rail to close and move the door panel. Therefore, in order to return the door panel to the running surface.

The door panel must be lifted and operated in the opposite direction to the moving direction, making it difficult to open the door panel.

In some cases, this has the disadvantage of requiring auxiliary means such as lifting mechanisms.

The present invention aims to solve the above-mentioned problems in an air sealing device for an opening in which at least a portion of the rail swings back and forth to move a panel body to a closed position. The purpose is to improve safety during operation by preventing the panel body from accidentally switching to a closed position in close contact with the bulkhead unless intended.

Another object of the present invention is to simplify the rail structure and obtain a low-cost opening/closing device with an airtight function.

Another object of the present invention is to provide an opening/closing device that can open a panel body with a smaller operating force and has improved operability. In particular, the object is to obtain an opening/closing device suitable for heavy panel bodies.

[Means for solving problems]

In the present invention, by swinging the movable rail 6B close to the partition wall 1, the panel body 4, which is in the closed state facing the opening 2, can be further moved from the running surface to the closed position where it is in close contact with the partition wall 1 side. Assuming that you have done this.

Specifically, as shown in FIG. 1, a movable rail 6B is provided on at least a portion of the rail 6 to be provided on the partition wall 1 side.

The movable rail 6B supports the panel body 4 so as to be swingable between a traveling guide position in which it stands up while allowing the panel body 4 to move laterally, and a blocking position in which it collapses toward the partition wall 1 side. This is due to the swinging displacement of the movable rail 6B.

This is for changing the posture of the panel body 4.

[Effect]

Since the attitude of the panel body 4 is changed by swinging the movable rail 6B, unless the movable rail 6B is swung to the backward tilted position in FIG.
The panel body 4 can be positioned on the running surface as shown in FIG.

Therefore, even if the roller 5 rides on the movable rail 6B, it is possible to prevent the panel body 4 from immediately descending to the blocking position A3.

Furthermore, even if the leading roller 5 moves on the movable rail 6B during lateral movement of the panel body 4, the posture of the movable rail 6B will not change simply due to the weight of the panel body 4, so the posture will not change. There is no need to provide a locking device to prevent switching.

When opening the opening 2, the posture is switched by applying an external force around the center of swing to the movable rail 6B. In other words, it is not necessary that the operating direction of the movable rail 6B and the opening operation direction match.
By simply operating the movable rail 6B to separate it from the partition wall 1, the movable rail 6B can easily switch from the posture shown in FIG. 1 to the traveling guide posture shown in FIG. 3.

〔Effect of the invention〕

Therefore, according to the device of the present invention, the panel body 4 in the closed position A2 directly facing the opening 2 is brought into close contact with the partition wall 1 at the closed position A.
・As long as the user does not perform a switching operation with a clear intention, the panel body 4 can be positioned on the running surface side. Therefore, it is possible to prevent accidents such as the panel body 4 that has moved to the closed position A2 suddenly descending and pinching limbs, thereby improving safety during operation.

When the roller 5 passes over the movable rail 6B during lateral movement of the panel body 4, the weight of the panel body 4 is simply transferred to the movable rail 6B.
The roller 5 can smoothly pass over the movable rail 6B without changing the rail posture. Therefore,
Auxiliary devices such as locking devices, which were essential in conventional devices, can be omitted. As a result, the rail structure can be simplified, and an opening/closing device having an airtight function as a whole can be manufactured at low cost.

Since the movable rail 6B swings back and forth to switch the position of the panel body 4, it is possible to easily switch the position of the panel body 4 without having to strictly match the operating direction of the movable rail and the operating direction of the panel body 4 as in conventional devices. Furthermore, the panel body 4 can be opened from the closed position A3 to the closed position A2 with a small operating force, improving operability. In particular, the opening 2 in the large and heavy panel body 4
Even when closing the panel body 4, the panel body 4 can be easily opened without a lifting mechanism or the like.

〔Example〕

Figure 2 is a front view, and reference numeral 1 indicates a partition wall of the building.

Reference numeral 2 denotes an opening provided in the partition wall 1 for access. In order to close this frontage 2 airtightly, nine air-tight sealing devices 3 are provided on the outside of the front surface of the opening 2.

The air sealing device 3 includes a rectangular panel body 4 that moves in the left and right directions to open and close the opening 2, and rollers 5 provided at two places on the left and right of the upper part of the panel body 4, which run along the outer surface of the partition wall l. A rail 6 on the side of the partition wall 1 for guiding, and a rubber stopper 7 on the side of the partition wall 1 for blocking the lateral movement of the panel body 4 at each of the open position A1 shown by a dashed line and the closed position A2 shown by a two-dot chain line.

It is composed of a rubber gasket 8 and the like that is fixed to the partition wall 1 along the periphery of the opening 20. Packing 8 is panel body 4
It can also be provided on the inner surface side of the opening 2 and the panel body 4, if necessary.

The panel body 4 has an outer shell made of a metal plate material, and the inside thereof is filled with a heat insulating material, a sound insulating material, etc. as required. Roller brackets 10 are fixed to the upper left and right sides of the outer front surface of the panel body 4, and each bracket 10 supports a set of two rollers 5. In FIG. 3, each roller 5 is a plastic molded product having a roller groove 11 that fits around the rail 6, and is rotatably supported by a horizontal shaft 12 fixed to the bracket 10 via a bearing 13.

The roller groove 11 is composed of a rolling groove 11a with a semicircular cross section that fits onto the rail 6, and front and rear flank surfaces 11b and llc that are continuous with the rolling groove 11a and slope in an outward wave shape. .

Of these, the flank 11b on the side of the bracket 10 is
The side flank face 11c has a large inclination. This is to avoid contact interference with the rail arm 17 when the movable rail 6B, which will be described later, tilts backward, as shown in FIG.

In FIG. 2, the rails 6 to be provided on the partition wall 1 side correspond to the two fixed rails 6A that account for most of the opening/closing stroke of the panel body 4, and the roller position when the panel body 4 is in the closed position A2. It consists of two movable rails 6B provided, and these are arranged in a straight line along the partition wall 1. however.

Each fixed rail 6A is fixed to the partition wall 1 with rail brackets 14 provided at regular intervals.

In FIGS. 3 and 4, the movable rail 6B includes a rail bar 15 whose length is approximately the same as the maximum lateral width of a pair of rollers 5, and a swing shaft 16 provided parallel to the rail bar 15. and a rail arm 17 that connects both members 15 and 16.
and a support frame 1 in which both ends of the swing shaft 16 are fixed to the partition wall 1.
It is pivotably supported at B. The support frame 18 is composed of a base 18a having an angular cross-section and a pair of bearing frames 18b provided at the left and right ends of the base 18a.
b via a bearing 19.

The movable rail 6B has two positions, as shown in FIG. 3, in which the rail rod 15 is continuous with the fixed rail 6A and allows the panel body 4 to open and close in the left and right directions (forward tilted posture), and as shown in FIG. The rail rod 15 can be swung between a closed position in which the rail rod 15 is tilted toward the partition wall 1 and tilted backward. In order to abut and regulate this swinging limit, a pair of stoppers 2 are placed between the swinging shaft 16 in the front and back.
0.21 were provided on the left and right sides of the base 18a.

That is, in FIG. 1, of the stoppers 20 and 21, the stopper 20 on the roller bracket 10 side restricts the movable rail 6B to come into contact with the partition wall 1 so as to be tilted forward by an angle α from a perpendicular plane. Also.

The stopper 21 on the partition wall 1 side restricts the movable rail 6B from coming into contact with the posture in which it is tilted backward by an angle β toward the partition wall 1 side from the vertical plane.

Preferably, the angle α is selected in the range of minus 10 degrees to plus 30 degrees.

In the example, the angle was set to 10 degrees. Similarly, the angle β is preferably selected in the range of 15 degrees to 60 degrees, and was set to 37 degrees in the example.

In FIG. 2, reference numeral 23 denotes a handle for opening/closing operations provided on the outer front surface of the panel body 4.

The air sealing device 3 configured as described above has a panel body 4
is moved horizontally along the rail 6 to open and close the opening 2. In Fig. 2, the panel body 4 is in the direction of arrow C (
If you move it in the direction of the arrow (to the left), it will come to the closed position A2, and if you move it in the direction of the arrow (rightward), it will come to the open position A1.

during this opening/closing operation.

The roller 5 on the closed end side needs to move by passing over the movable rail 6B on the right side sandwiched between the fixed rails 6A and 6A, but the movable rail 6B in Problem 9 is in the upright traveling guidance position as shown in Fig. 3. It is supported by the stopper 20 in a state tilted forward with respect to the partition wall 1, and even if the load of the panel body 4 acts on the movable rail 6B via the rollers 5, this load will not change the traveling guide posture. It only creates a moment that continues to be maintained. Therefore, roller 5 is a hindrance (
It can pass over the movable rail 6B.

As shown by the two-dot chain line in FIG. 2, in the closed position A2, the panel body 4 directly faces the opening 2, and
・5 rides on movable rails 6B and 6B, respectively. Even in this state.

The movable rail 6B continues to maintain the traveling guide posture as described above, and maintains the closed position A2 unless the user performs a closing operation such as pressing the panel body 4 toward the partition wall 1 side. When the panel body 4 or the movable rail 6B is directly operated from this state and the movable rail 6B is swung toward the partition wall l side, the panel body 4 gradually moves backward from the running surface defined by the rail 6. At the same time as the center of the rail rod 15 moves rearward from the center point of the swing shaft 16, it rapidly moves to the blocking position A3 in FIG. 1 and comes into close contact with the packing 8.

The opening 2 is sealed airtight. Although not shown.

In order to bring the lower edge side of the panel body 4 into close contact with the packing 8,
The lower end of the opening 2 has a guide for guiding the lower edge of the panel body 4 that has moved to the closed position A2 and bringing its inner surface into close contact with the packing 8.

When opening the panel body 4 from the closed position A3 to the closed position A2, contrary to the above case, directly operate the panel body 4 or the movable rail 6B to swing the movable rail 6B forward and stand it up. let At this time, the movable rail 6B swings and changes its posture, so the operating force does not necessarily have to exactly match the direction of movement of the movable rail 6B.
Opening operation is easy. Furthermore, since the panel body 4 is moved by a partial rotation operation with less operational resistance, the panel body 4 can be pulled back to the running surface with a smaller operating force than in conventional devices.

Furthermore, since the panel body 4 can be easily opened by pushing it from the inside, for example, if the present invention is applied to the opening 2 which is the entrance/exit of a refrigerator, etc., it will prevent people from being trapped inside the refrigerator. It is also advantageous.

[Another embodiment example]

Although the above-mentioned panel body 4 is suspended and supported by the upper rail 6, the rail 6 may be provided on the lower side. Further, the rails 6 are provided above and below.

The panel body 4 can also be moved back and forth in a parallel posture.

The air sealing device 3 of the present invention may be provided on the inner surface side of the opening 2 including the panel body 4.

A plurality of panel bodies 4 may be supported by rails 6 (
In this case, movable rails 6 are provided in accordance with the number of rollers 5 on the panel body 4. In some cases, all of the rails 6 may be composed of only the movable rail 6B.

When a transport vehicle etc. enters and exits through the opening 2, the lower edge of the opening 2 must be aligned with the floor surface, but in this case, the panel body 4
An elastic packing 8 is provided at the lower end of the .

Easy passage of transport vehicles can be ensured.

It is preferable that the movable rail 6B be perpendicular to the partition wall 1 or inclined slightly forward in the traveling guide position shown in FIG. However, in some cases, it may be tilted slightly backwards. In this case, in order to stably maintain the traveling guide position, the movable rail 6B may be biased to move to the upright position using a spring that balances the weight of the panel body 4.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view of the main parts showing the rail structure. Fig. 2 is a front view of the air sealing device, Fig. 3 is a vertical side view showing the rail condition during running, and Fig. 4 is B--B in Fig. 3.
It is a sectional view taken along the B line. 1... Bulkhead. 2...Opening. 3... Air sealing device. 4...Panel body. 5...Roller, 6...Rail. 6A...Fixed rail. 6B...Movable rail. A1...Open position. A2...Closed position. A3...Block position.

Claims (3)

[Claims] (1) It has a laterally movable panel body 4 that opens and closes the opening 2 of the partition wall 1, and has a roller 5 on the panel body 4 side and a rail 6 that guides the roller 5 on the partition wall 1 side, At the closed position A2 where the panel body 4 directly faces the opening 2, the panel body 4 is moved back and forth between the running surface defined by the rail 6 and the closed position A3 where the opening 2 is sealed in close contact with the partition wall 1. A swinging movable rail 6B is provided on at least a part of the rail 6, and the movable rail 6B is between a traveling guide position in which it stands up while allowing the lateral movement of the panel body 4 and a blocking position in which it collapses toward the bulkhead 1 side. An air sealing device for an opening, characterized in that the air sealing device is supported in a swingable manner. (2) A patent claim in which the rail 6 comprises a plurality of movable rails 6B provided corresponding to the roller positions when the panel body 4 is in the closed position A2, and a fixed rail 6A provided adjacent to the movable rail 6B. The air-tight sealing device according to item 1. (3) The air-tight sealing device according to claim 1 or 2, wherein the movable rail 6B is configured to be slightly inclined forward with respect to the partition wall 1 when the movable rail 6B assumes the traveling guide position.