JP3105874B2 - Door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door for opening and closing a ventilation opening in conjunction with opening and closing of a door.

[0002]

2. Description of the Related Art It is difficult to smoothly open and close a door provided in an airtight room. This is because, when the door is opened and closed, air cannot enter and exit the closed room. Not only airtight rooms but also doors with good airtightness cannot be opened and closed smoothly.

In order to solve this problem, a door that opens a ventilation opening in conjunction with opening and closing of the door has been developed (Japanese Utility Model Laid-open No.
No. 19577 and Japanese Patent Publication No. 4-66988).
FIG. 1 shows a main part of a door described in Japanese Utility Model Laid-Open No. 7-19577. The door in this figure has a slit-shaped ventilation opening 2 parallel to the surface plate 1. A slide plate 16 is built in the inner surface of the front plate 1 so as to be able to move up and down. The slide plate 16 also has a slit-shaped ventilation port 1
7 is open. When the handle is rotated, the slide plate 16 is moved up and down to open and close the ventilation port 2. The pin 19 is fixed to the slide plate 16 so as to be moved up and down by a handle shaft 18. The handle shaft 18 fixes a rotating plate 20 that drives a pin 19 up and down. When the handle shaft 18 is rotated to open and close the door having this structure, the slide plate 16 is moved to open the ventilation port 2.

FIG. 2 shows a door disclosed in Japanese Patent Publication No. 4-66888. The door in this figure has an opening 2 at the bottom. Opening / closing plate 3
Are arranged so that they can be rotated. When the door is closed, the opening / closing plate 3 is in a vertical position, and closes the ventilation port 2. When the handle 7 is rotated to open the door, the opening / closing plate 3 is in a horizontal position and the ventilation port 2 is opened. The door in this figure moves the rod 21 up and down by the rotation of the handle 7. The rod 21 is connected via a lever 23 to a crank pin 22A of a crankshaft 22 connected to the rotating shaft 4 of the opening / closing plate 3, as shown in the sectional view of FIG. .

[0005]

The door shown in FIG. 1 opens and closes a ventilation opening by moving a slide plate up and down. In the door having this structure, the lock mechanism needs to have a unique structure in order to connect the slide plate to the vicinity of the lock mechanism.
For this reason, a general-purpose lock mechanism generally used cannot be used. Since a dedicated locking mechanism is designed, manufacturing costs are increased. In addition, since the slide plate is moved up and down directly by the handle shaft, the position where the slide plate is disposed is restricted. For this reason, the position where the ventilation port is provided is also restricted. For example, there is a disadvantage that it is difficult to provide the ventilation port at a portion far from the handle shaft and to move the slide plate smoothly.

Further, the door shown in FIG. 2 also needs to be provided with a unique mechanism for moving the rod up and down with the handle. For this reason, it is necessary to design the lock mechanism into a special structure, and there is a disadvantage that a general-purpose lock mechanism cannot be used and the manufacturing cost increases. Also, the door of this structure
Since the opening and closing plate is opened and closed by the rod via the lever and the crank mechanism, the structure of this portion is complicated. Also, it is difficult to smoothly rotate the opening / closing plate. Further, it is difficult to design a portion for connecting the rod and the opening / closing plate to be compact, and there is a disadvantage that the structure of this portion is complicated and large.

The present invention has been developed with the object of solving such a conventional drawback. An important object of the present invention is to use a general-purpose lock mechanism and to use an extremely simple mechanism to open and close the open / close plate. It is an object of the present invention to provide a door which can smoothly open and close a ventilation opening by rotating the door.

[0008]

According to the door of the present invention, an opening / closing plate 3 is provided at a ventilation opening 2 opened on a surface plate 1 so as to be freely opened and closed. The opening / closing plate 3 is connected to a handle shaft of a lock mechanism 6 that locks the door in a closed state. When the handle shaft of the lock mechanism 6 is rotated, the open / close plate 3
Is configured to open and close.

Further, in the door according to the first aspect of the present invention, a general-purpose Gremon lock is used for the lock mechanism 6. The upper and lower rods 8 of the glemon lock connect the cam plate 14 in the middle. The cam plate 14 has a cam hole 15 in which a cam 13 connected to the rotating shaft 4 of the opening / closing plate 3 is disposed inside. When the handle 7 of the gremone lock is rotated to move the upper and lower rods 8 up and down, the cam plate 14 is moved up and down, and the cam 13 provided inside the cam hole 15 is rotated, and the cam 13 is rotated. Then, the rotation shaft 4 of the opening and closing plate 3 is rotated to open and close the ventilation port 2.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. However, the embodiments described below exemplify doors for embodying the technical idea of the present invention, and the present invention does not specify the doors as follows.

Further, in this specification, in order to make it easier to understand the claims, the numbers corresponding to the members shown in the embodiments are set forth in the “claims” and “ In the column of “means”. However, the members described in the claims are not limited to the members of the embodiments.

The door shown in FIG. 4 has a front panel 1 fixed to both sides of a rectangular frame (not shown). Further, the door has a ventilation opening 2 penetrating through the front surface plate 1 on both sides. As shown in the cross-sectional view of FIG. 5, an opening / closing plate 3 is provided between the ventilation holes 2 provided on the front surface plates 1 on both sides. The opening / closing plate 3 is mounted on a door so that it can rotate in a range of about 90 degrees. The opening / closing plate 3 shown in this figure rotates from the solid line position to the chain line position. The opening / closing plate 3 is, as shown by a solid line, a surface plate 1
The space between the ventilation ports 2 provided on both sides is closed in a posture perpendicular to the direction. The opening and closing plate 3 shown in the figure has both ends approaching the inner surface of the surface plate 1 to reduce the gap with the surface plate 1. When the opening / closing plate 3 is rotated in a posture parallel to the surface plate 1 as shown by a dashed line, the two ventilation ports 2 are opened in communication with each other, so that the ventilation can pass through the surface plate 1 of the door. Become.

Although not shown, the opening / closing plate may be provided with closing members at both ends to close the gap with the surface plate. For example, a rubber-like elastic body can be used for the closing member. The rubber-like elastic closing member is provided along the leading edge of the opening / closing plate so that when the opening / closing plate is in a position orthogonal to the surface plate, it can lightly contact the inner surface of the surface plate to close the gap with the surface plate. It will be extended. Soft rubber is most suitable for the rubber-like elastic body. However, hard rubber, leather, plastic, or the like can be used for the rubber-like elastic body. As described above, the opening / closing plate provided with the closing member has a feature in which the gap between the opening / closing plate and the surface plate can be closed and the two ventilation ports can be more airtightly closed in a posture orthogonal to the surface plate.

The door shown in the figure has a ventilation plate 2 which is opened up and down on both surface plates 1, and an opening / closing plate 3 is arranged between the upper and lower ventilation plates 2. The opening / closing plate 3 has a width slightly smaller than the inner width of the surface plate 1 fixed to both sides so that the opening / closing plate 3 can rotate inside the surface plate 1. The opening / closing plate 3 is mounted on a door via a rotating shaft 4 as shown in the sectional view of FIG. The rotating shaft 4 is fixed to both ends of the back surface of the opening and closing plate 3 in a straight line. One rotating shaft 4 is extended to one end of the door to rotate the opening / closing plate 3. The other rotating shaft 4 is rotatably connected to a frame 5 built in the door.

The opening / closing plate 3 is turned by the handle 7 of the lock mechanism 6 to open and close the ventilation port 2. With the door closed, the opening / closing plate 3 is closed so that the two ventilation ports 2 are not communicated. When the handle 7 is rotated in order to open the door, the opening / closing plate 3 is rotated to communicate both the ventilation openings 2, so that air can pass through the door, that is, the ventilation opening 2 is opened.

The lock mechanism 6 for opening and closing the door and rotating the opening and closing plate 3 is a gremone lock. The glemon lock has an upper and lower rod 8 that locks the door closed. The upper and lower rods 8 project upward and downward from the door with the door closed. As shown in FIG. 7, the upper and lower rods 8 projecting from the door are inserted into guide holes 10 provided in the door frame 9 to lock the door in a closed state.

The upper and lower rods 8 are attached to the handle 7 of the Gremon tablet.
Rotate to move up and down. The mechanism by which the gremone tablet moves the up-and-down rod 8 up and down can be a structure already adopted in the current gremone tablet or any structure used for a gremone tablet to be developed in the future. For example, although not shown, the Gremon tablet connects a handle shaft to a crankshaft, connects an upper and lower rod to a crankpin of the crankshaft via a connecting rod, and moves the upper and lower rods up and down. The connecting rod is connected to the crankpin and the upper and lower rods via a joint that can freely rotate in a vertical plane.

The upper and lower rods 8 of the Gremon tablet are connected to a rack 11 on the way. The rack 11 rotates the opening / closing plate 3 via the pinion 12. The pinion 12 is fixed to the rotating shaft 4 of the opening / closing plate 3 and meshes with the rack 11. The diameter of the pinion 12 is designed to be large enough to rotate the open / close plate 3 from a horizontal position to a vertical position when the handle 7 of the Gremon tablet is rotated to release the lock.

In the door having this structure, when the door is closed and the Gremon lock is locked, the upper and lower rods 8 are protruded up and down of the door to be locked. When the upper and lower rods 8 are at this position, the opening / closing plate 3 is in a posture orthogonal to the surface plate 1 and the ventilation holes 2 on both sides are closed.
For this reason, it seals in a state where air does not pass through the ventilation opening 2 of the door, that is, a state where the door does not ventilate the room. When the handle 7 of the Gremon lock is turned to open the door, the upper and lower rods 8 are pulled into the interior of the door. When the vertical rod 8 moves to this position, the rack 11 connected to the vertical rod 8 rotates the pinion 12. The pinion 12 rotates the opening / closing plate 3 so that the opening / closing plate 3 is in a posture parallel to the surface plate 1. When the opening / closing plate 3 is in this position, the surface plate 1
The ventilation port 2 provided in the state is such that air can pass through the door. When the door is opened in this state, air flows into the room through the door, and the door can be opened smoothly.

The door shown in FIG. 4 has a ventilation port 2 at the top of the door.
A rack 11 and a pinion 12 provided on an upper and lower rod 8 extending upward from the lock mechanism 6.
The ventilation plate 2 is opened and closed by rotating the opening / closing plate 3 via. However, the door of the present invention may be provided with a ventilation port and an opening / closing plate below the door. In this door, a rack is provided on an upper and lower rod extending downward from a lock mechanism, and a ventilation port is opened and closed by rotating an opening / closing plate via a pinion that meshes with the rack.

The door having the above structure has a simple structure via the rack 11 and the pinion 12, and is linked with opening and closing of the door.
There is a feature that the ventilation opening 2 can be opened and closed. However, the door of the present invention can open and close the ventilation port in conjunction with the handle by the mechanism described below.

The door shown in FIG.
And the opening and closing plate 3 are arranged, and the cam plate 14 is connected to the middle of the upper and lower rods 8 extending downward from the Gremon tablet. In this door, the cam plate 14 connected to the upper and lower rods 8 descends when the door is closed to lock the Gremon lock. Further, when the handle 7 is rotated to open the door and the upper and lower rods 8 are drawn into the door, the cam plate 14 connected to the upper and lower rods 8 is raised. The cam plate 14 that moves up and down rotates the opening and closing plate 3 via the cam 13.

The cam plate 14 and the cam 13 are shown in FIGS. The cam plate 14 shown in these figures has a cam hole 15 in which the cam 13 connected to the rotary shaft 4 of the
Having. The cam hole 15 rotates the cam 13 provided inside when the cam plate 14 is moved up and down.
The cam 13 is connected to the rotation shaft 4 of the opening and closing plate 3, and rotates the opening and closing plate 3 to open and close the ventilation port 2.

A cam hole 15 shown in FIG. 2 is provided with a closing cam surface 15A for rotating the cam 13 when the cam plate 14 is lowered to close the ventilation port 2 with the opening / closing plate 3, and a cam plate 14
And an open cam surface 15B at which the opening / closing plate 3 opens the ventilation opening 2 by rotating the cam 13 when the air conditioner is raised.
The cam 13 has a first sliding surface 13A that slides on the closing cam surface 15A to close the opening / closing plate 3, and a second sliding surface 13B that slides on the opening cam surface 15B to open the opening / closing plate 3.

The cam 13 shown in the figure has a first sliding surface 13A and a second sliding surface 13B arranged in a V-shape,
A rotating shaft 4 connected to the opening / closing plate 3 is fixed in the middle of 3B. When the cam plate 14 is lowered from the position shown in FIG. 10 to the position shown in FIG. 9, the first sliding surface 13A slides on the closing cam surface 15A. The descending closing cam surface 15A descends while pressing the upper end of the first sliding surface 13A in the direction indicated by arrow A. Therefore, when the cam hole 15 descends, the cam 13 is rotated in the direction shown by the arrow B to rotate the opening / closing plate 3 to the closing position. When the cam plate 14 is raised from the position shown in FIG. 9 to the position shown in FIG. 10, the second sliding surface 13B
Is pressed against the upper end of the open cam surface 15B in the direction indicated by arrow C, and the cam 13 is rotated in the direction indicated by arrow D, thereby rotating the opening / closing plate 3 in the opening direction.

The closing cam surface 15A gradually moves from the bottom to the top to the rotating shaft 4 in order to move the upper end of the first sliding surface 13A from left to right in the figure as the cam plate 14 is lowered. It is a slope approaching. The open cam surface 15B is a vertical portion 15 that rotates the second sliding surface 13B of the cam 13 to a vertical position when the cam plate 14 is raised.
a and a horizontal surface 15b connected to the upper end of the vertical portion 15a and extending outward.

The cam plate 14 having this structure is moved up and down by the upper and lower rods 8 of the Gremon tablet to rotate the cam 13. As shown in FIG. 9, when the cam plate 14 is lowered, the cam 13 rotates the opening / closing plate 3 to a position where the ventilation port 2 is closed. As shown in FIG. 10, when the cam plate 14 is raised, the cam 13 rotates the opening / closing plate 3 so as to communicate with the ventilation port 2.

The cam hole 15 and the cam 13 shown in FIGS.
Is characterized in that the rotating shaft 4 can be smoothly rotated with a simple structure. However, the door of the present invention does not limit the structure of the cam plate and the cam to the above structure. The cam plate and the cam may be any mechanism that can move the cam plate up and down by an up-and-down rod and rotate the cam plate at an angle that allows the opening and closing plate to be opened and closed via the cam.

Further, in the door shown in FIG. 8, the ventilation port 2 and the opening / closing plate 3 are provided at the lower portion of the door. However, the door of the present invention may be provided with the ventilation port and the opening / closing plate at the upper portion of the door. it can. Although not shown, the door is provided with a cam plate on an upper and lower rod extending upward from the gremone lock, and the opening / closing plate is rotated via the cam plate and the cam to open and close the ventilation opening. In this door, the cam plate and the cam are arranged upside down, for example, in the state shown in FIGS. 9 and 10. In this door, when the upper and lower rods protrude from the door to lock the door, the cam plate is raised to rotate the opening / closing plate in a direction to close the ventilation opening. Further, in this door, when the upper and lower rods are pulled into the door to release the locked state, the cam plate is lowered to rotate the opening / closing plate in a direction to open by communicating with the ventilation port.

[0030]

The door of the present invention has a feature that a general-purpose locking mechanism can be used to smoothly open and close the opening / closing plate with a simple mechanism to open and close the ventilation opening. It is the door of the present invention,
This is because when the door is opened and closed, the up-and-down rod of the gremone lock that moves up and down is used, and further, the opening and closing plate is rotated via a rack and a pinion or a cam to open and close the ventilation opening.

Further, the door of the present invention opens and closes the ventilation opening by rotating the opening and closing plate with the upper and lower rods of the glemon lock,
There is a feature that the door can be opened smoothly with the ventilation opening completely open. This is because the glemon lock pulls the upper and lower rods completely into the door to release the locked state. When the upper and lower rods are completely retracted into the door, the opening / closing plate is completely rotated, and the ventilation opening is completely opened. In this state, air can freely pass through the ventilation port. Therefore, when the locked state of the gremone tablet is released, the ventilation port is completely opened, and the air can freely pass therethrough. Since the door is opened after this state, the door can be opened smoothly in a state where air can smoothly flow into the airtight chamber. Also, when closing the door, the door is completely closed and then the glemon lock is locked, so until the door is closed, air can freely pass through the door and the door can be closed smoothly. . After closing the door, when the Gremon lock is locked, the ventilation port is closed by the opening / closing plate, and the passage of air is blocked.

[Brief description of the drawings]

FIG. 1 is an enlarged view of a main part showing an example of a conventional door that opens a ventilation opening in conjunction with opening and closing.

FIG. 2 is a cross-sectional view showing another example of a conventional door that opens a ventilation opening in conjunction with opening and closing.

FIG. 3 is an enlarged sectional view of a main part of the door shown in FIG. 2;

FIG. 4 is a front view of the door according to the embodiment of the present invention.

FIG. 5 is a sectional view taken along line AA of the door shown in FIG. 4;

FIG. 6 is a sectional view of the door shown in FIG. 4 taken along line BB.

FIG. 7 is a left side view, partially in section, of the door shown in FIG. 4;

FIG. 8 is a front view of a door according to another embodiment of the present invention.

FIG. 9 is an enlarged sectional view showing a cam and a cam plate of the door shown in FIG. 8;

FIG. 10 is an enlarged sectional view showing a state where the cam plate of the door shown in FIG. 9 is raised.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Surface plate 2 ... Ventilation opening 3 ... Opening / closing plate 4 ... Rotating shaft 5 ... Frame 6 ... Lock mechanism 7 ... Handle 8 ... Vertical rod 9 ... Door frame 10 ... Guide hole 11 ... Rack 12 ... Pinion 13 ... Cam 13A ... No. 1 sliding surface 1
3B: second sliding surface 14: cam plate 15: cam hole 15A: closed cam surface 1
5B: Open cam surface 15a: Vertical portion 15b: Horizontal surface 16: Slide plate 17: Ventilation port 18: Handle shaft 19: Pin 20: Rotating plate 21: Rod 22: Crank shaft 22A: Crank pin 23: Lever

Claims (1)

(57) [Claims] 1. A ventilation port (2) opened on a surface plate (1),
An open / close plate (3) is provided so that it can be opened and closed freely.
The door is connected to the handle shaft of a lock mechanism (6) that locks the door in a closed state, and the handle shaft is rotated to open and close the ventilation opening (2) with the opening and closing plate (3). , A glenmon tablet is used for the lock mechanism (6), and a cam plate (14) is connected in the middle of the upper and lower rods (8) of the glenmon tablet, and the cam plate (14) It has a cam hole (15) in which a cam (13) connected to the rotating shaft (4) is arranged inside, and by rotating the handle (7) of the glemon lock, the upper and lower rods (8)
When the cam plate (14) is moved up and down, the cam plate (14) is moved up and down to rotate the cam (13) provided inside the cam hole (15), and the cam (13) is used to open and close the opening / closing plate. A door characterized in that the rotating shaft (4) of (3) is rotated to open and close the ventilation port (2).