JP3848339B2 - Door opening and closing device - Google Patents

Description

  The present invention relates to a door opening / closing device provided at an entrance / exit of a building, and more particularly, to a door opening / closing device in which opening / closing portions are respectively formed on an outdoor side and an indoor side of an entrance / exit opening.

Conventional (automatic) door opening / closing devices of this type include revolving doors and double automatic doors, but the former has a complicated structure and increases weight, making it suitable for wheelchair users, people with disabilities, and the weak. Was inconvenient and dangerous.
The latter has the disadvantage that it is difficult to block the air between the room and the outside in places where there are many people coming and going, and the wind blows into the room, which makes the efficiency of cooling and heating worse.
Japanese Patent Application Laid-Open No. 2002-138767 discloses a technique related to an automatic revolving door device that is easy to pass through. However, even in this case, the floor moves, so the nerves are used for passage, and it is very dangerous especially for those who are unstable in walking. It is.

Japanese Patent Publication No. 2002-138767

  An object of the present invention is to provide a door opening and closing device that has a simple structure, is light in weight, is safe and gentle for wheelchair users and the weak, and has high air-conditioning efficiency without blowing air into the room. To do.

In order to achieve the above object, the present invention includes an outdoor opening and an indoor opening having substantially the same width at the doorway of a building, a rectangular outdoor door at the outdoor opening, and an indoor opening. A rectangular indoor side door is provided, and the width of each of the outdoor side door and the indoor side door is approximately the same width as the opening, and a central portion along the passing direction between the outdoor side opening and the indoor side opening. A central partition wall is provided, and the outdoor door and the indoor door reciprocate on a straight line in the left-right direction while maintaining a point-symmetric positional relationship in the cross-section centered on the central vertical axis of the central partition wall. One moving mechanism for opening and closing the door is provided.
Here, when the outdoor door and the indoor door reciprocate on a straight line in the left-right direction while maintaining a point-symmetrical positional relationship in the cross section, both doors are 180 around the central vertical axis of the central partition wall. Rotation means an overlapping relationship. For example, the outdoor door moves to the left by the same distance, and the indoor door moves to the right by the same distance.

In the present invention, the outdoor door and the indoor door are rectangular (four corners) planar sliding doors that reciprocate on a straight line.
As a means for supporting the door, there are a so-called suspension door type and a means in which a door is provided directly under the door.
In addition, by providing the central partition wall between the outdoor opening and the indoor opening, there are two entrances on the left and right.

  The reciprocating range of both the outdoor and indoor doors varies depending on the structure of the entrance / exit of the building, but at least the range where the left and right ends of the door are not separated from the central partition wall is effective for blocking the air at the entrance / exit Is.

For example, as shown in FIG. 3 , when the outdoor door moves from the outdoor side to the left side, the right side passage partitioned by the central partition wall is opened and the left side passage is blocked, the indoor side door Moves to the right end of the moving range, opens the left passage, and closes the right passage.
Conversely, as shown in FIG. 4 , when the outdoor door moves to the right, opens the left passage, and closes the right passage, the indoor door moves to the left end of the moving range and moves the right passage. It opens and closes the left passage.

As shown in FIG. 2 , at the middle point where each door moves, both the doors are closed by closing the left and right passages. Accordingly, the doors are not simultaneously opened in the left and right passages.
That is, since the outdoor door, the central partition wall, and the indoor door always work as a continuous wall, the outside air and the indoor air are always blocked.

What is required for the central partition wall is to block the air in the left passage and the right passage, in other words, to block the air inside and outside the room. Therefore, there is no need to limit the material or the like, and any material such as a wall, a plate, or glass may be used.
Furthermore, a sliding door or a door may be provided on a part or all of the central partition wall in a state where air can be blocked. At that time, the outdoor door and the indoor door are stopped in the state shown in FIGS. If it is, it can also be used as an emergency exit or general entrance.

  As one of means for interlocking the doors so as to always maintain a point-symmetrical position in the cross section, there is a method using a pulley and a belt.

As shown in FIG. 5, when both belts are in the middle position when the belt 4 is stretched, the pulley 6 is provided so that the length of the belt portion parallel to the outdoor door and the indoor door is equal to or greater than the width of the door. . The connecting bracket 7 provided at the upper center of the width of the outdoor door and the indoor door is connected to the belt portion with respect to each other so as to be parallel. Then, the rotation direction and speed of the drive pulley 5 are controlled by one motor, and each door is reciprocated via the belt 4. In addition to belts, there are also methods using wires and chains.
As another means, a method is conceivable in which a rack is provided above the outdoor door and the indoor door, and an odd number of gears are combined between the racks and driven by a motor.

As described above, according to the door opening and closing device of the present invention, the structure is simple and lightweight, and the floor does not need to move. In particular, it is safe and gentle for wheelchair users and the weak, and always outside and indoors. Since the door is opened and closed in a state where the air is shut off, the air is not blown into the room, and the air conditioning efficiency can be increased.
In addition, since the structure is simple and lightweight, it can be opened and closed by hand without necessarily using a power-driven automatic door.

Although various types of the present invention can be considered, the examples shown in FIGS. 1 to 5 are used to open and close the two flat sliding doors using a motor via a pulley and a belt. is there.
Although detailed explanation is omitted, the motor is controlled by a door position sensor and a human sensor.

FIG. 1 is a perspective view, and FIGS. 2 to 4 show the movement of the door.
As shown in FIG. 5, when both doors are in the middle position, four pieces are provided on the ceiling of the passage so that the length of the belt portion parallel to the outdoor door and the indoor door is equal to or greater than the width of the door. The pulley 6 and the one drive pulley 5 are provided, and the belt 4 is stretched. And the connection bracket 7 provided in the center upper part of the width | variety of an outdoor side door and an indoor side door, and the belt part with respect to each are connected so that it may maintain in parallel.

  Here, when the drive pulley is rotated clockwise by the motor, the entire belt also rotates clockwise, so that the connected outdoor door 1 moves to the left and the indoor door 2 moves to the right. go. When the outdoor door moves to the left end of the moving range and the indoor side door moves to the right end of the moving range to reach the state shown in FIG. 3, the door position sensor is activated and the motor stops.

In this state, when a person who goes out of the room enters the left passage or a person who enters the room enters the right passage, the person detection sensor is activated and the driving pulley is rotated reversely by the motor. The outdoor door 1 moves to the right and the indoor door 2 moves to the left.
In the middle, after the state shown in FIG. 2 has passed, the door position sensor is activated when the outdoor door moves to the right end of the moving range and the indoor door moves to the left end of the moving range as shown in FIG. Stops the motor. This allows people in the left passage to go outside and people in the right passage can enter the room.

Conversely, when a person who goes out of the room enters the right passage or a person who enters the room enters the left passage, the person detection sensor is activated, and the driving pulley is rotated clockwise by the motor. The outdoor door moves to the left and the indoor door moves to the right.
In the middle, after the state shown in FIG. 2 has passed, the door position sensor is activated when the outdoor door moves to the left end of the moving range and the indoor door moves to the right end of the moving range as shown in FIG. Stops the motor. This allows people in the right passage to go out and people in the left passage can enter the room.
In this way, people can always go in and out through either the left or right passage, and the air inside and outside is always blocked during that time.

6 to 10 are reference examples, and FIG. 6 is a perspective view.
In this case, the outdoor door 1 and the indoor door 2 are reciprocated so as to form a circular arc integrally with the rotation frame 8. Other than that, the operation principle and the entry and exit of people in the passage are almost the same as those shown in FIGS.
With the means described above, it is difficult for a long object to pass through the entrance / exit, but it is possible if the range of movement of the door is widened so that both ends of the door are separated from the central partition wall. However, in that case, the indoor and outdoor air cannot be blocked.

It is a perspective view which shows the structural example of a rectangular shape (square box shape) door opening and closing apparatus. The state where the sliding door type door of a rectangular shape (square box shape) door opening and closing device is in the center is shown. The state which the outer sliding door type door of the rectangular shape (square box shape) door opening and closing device moved to the left as seen from the outside is shown. The state which the outer side sliding door type door of the rectangular shape (square box shape) door opening / closing apparatus moved rightward seeing from the outer side is shown. The drive configuration example schematic diagram of a rectangular shape (square box shape) automatic door opening and closing device sliding door type door is shown. The structural example perspective view of a circular door opening / closing apparatus is shown. The closed door type door of a circular door opening / closing apparatus shows the closed state in which each is in the center. The state where the outer sliding door type door of the circular door opening and closing device has moved leftward as viewed from the outside is shown. The state which the outer sliding door type door of the circular door opening / closing apparatus moved rightward seeing from the outside is shown. The drive structural example schematic diagram of the sliding door type door of a circular automatic door opening and closing apparatus is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outdoor door 2 Indoor door 3 Central part partition wall 4 Belt 5 Drive pulley 6 Pulley 7 Connection bracket 8 Rotating frame

Claims (1)

The building has an outdoor opening and an indoor opening having substantially the same width at the entrance / exit of the building, a rectangular outdoor door at the outdoor opening, and a rectangular indoor door at the indoor opening. The width of the outer door and the indoor door is approximately the same width as the opening, respectively, and includes a central partition wall that partitions between the outdoor opening and the indoor opening at the central portion along the passage direction. One door opening / closing drive means that reciprocates on a straight line in the left-right direction while the outer door and the indoor door are centered on the central vertical axis of the central partition wall and maintain a point-symmetrical positional relationship in the cross section. A door opening and closing device characterized by that.

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