JPH112063A - Door opening/closing mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door opening/closing mechanism which does not require separate formation of a door accommodating space beside the opening in the opened condition differently from a conventional slide door, is not bulky compared with a folding door, requires a small area for the door to block the opening, does not form obstacle, and does not result in a small opening area of the opening part. SOLUTION: An opening/closing mechanism for a door 10 can make changing- over whereby an opening 20 is changed over between the blocked condition and the released condition, wherein side walls 30 are formed at the side edges 21 of the opening 20 in such a way as directed toward the inner backmost from the side edges 21. The opening/closing mechanism is equipped with a horizontal sliding part 13 which slides one end of the door 10 on the side with the side wall 30 toward the inner backmost along the side wall 30 and a front sliding part 14 which slides the other end of the door 10 to the side with the side wall 30 along the opening 20, and possibility of changing-over from the blocked condition to the released condition is established by arranging the door 10 along the side wall 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening and closing mechanism capable of opening and closing an opened opening.

[0002]

2. Description of the Related Art A conventional door opening / closing mechanism will be described below using a mechanism used for an elevator. 11 to 13 show an elevator using a conventional door opening / closing mechanism. FIG. 11 is a plan view of the door opening / closing mechanism.
Is a partial schematic longitudinal sectional view, and FIG. 13 is a schematic perspective view thereof.

A conventional elevator 110 having a door opening / closing mechanism
Is a rectangular cylindrical hoistway 120 vertically erected between the first floor and the third floor of the building, and the inside of the hoistway 120 can be moved up and down, and people and things can be moved up and down. And a rectangular box-shaped basket 130 that can be transported. The hoistway 120 is formed inside an open space 111 that is vertically opened between the upper and lower floors by a structural member inside the building.
A rectangular tube-shaped vertical passage is formed by the face material 122 fixed so as to cover the inner surface of each of the eleventh inner surfaces.

A hoistway 120 is provided at a landing opening 140 which is opened for entering and exiting a car 130 in a building room on each floor.
A landing sliding door 160 composed of two flat plates that can be opened and closed by automatically sliding while covering the landing opening 140, and a landing that can store the landing sliding door 160 inside when the landing sliding door 160 is opened. And a sliding door storage section 161. The landing opening 140 is located at the landing sliding door 160.
A landing sliding door drive unit 162 which is positioned above the landing sliding door 160 to automatically slide the door and applies a driving force;
A landing slide rail 141 which is located below the landing sliding door 160 and serves as a guide for sliding a lower portion of the landing sliding door 160 in a lateral direction is provided.

The car 130 has a car opening 150 opened to serve as an entrance of the car 130, and a car sliding door comprising two flat plates which cover the car opening 150 and can be opened and closed by automatically sliding. The car sliding door 170 includes a car sliding door storage section 171 that can store the car sliding door 170 inside when the car sliding door 170 is opened. And the cage opening 150 is
Car sliding door 1 to automatically slide the car sliding door 170
Car sliding door drive unit 17 that is located above 70 and provides driving force
2 and a car slide rail 151 which is located below the car sliding door 170 and serves as a guide for sliding the lower part of the car sliding door 170 in the lateral direction.

[0006]

However, the above-described conventional door opening / closing mechanism requires that the car sliding door 170 be opened, that is, the car sliding door 170 be moved laterally.
A car sliding door storage section 171 serving as a space for accommodating it must be formed between the car 130 and the hoistway 120, and the area occupied by the hoistway 120 has increased. That is, in the case of a sliding door, there is a first problem that, when the sliding door is opened, a space for accommodating the opened sliding door is required separately.

Further, if a folding door that is bent in the width direction is used without using the sliding door described above, the folded door is bulky in a state where the folding door is bent and the car opening 150 is opened, and the car opening 150 is closed. There is a second problem in that a part of the cage opening 150 is obstructed and the opening area of the car opening 150 is reduced. Therefore, the invention according to claim 1 has been made in view of the first and second problems of the above-described conventional technology, and the object thereof is that, in an open state, compared to a sliding door, There is no need to separately form a storage space for the door beside the opening,
An object of the present invention is to provide a door opening / closing mechanism that is not bulky as compared with a folding door, has a small area for the door to close the opening, does not obstruct the opening, and does not reduce the opening area of the opening.

[0008] In addition, the invention according to claim 2 is to provide a door opening / closing mechanism capable of slidably supporting an upper portion of the door by forming the front rail and the horizontal rail. is there. In addition to the above, according to the third aspect of the present invention, since the door is a hanging door, the lower surface of the opening can be formed flat, the peripheral members can be simplified, and the inside of the opening can be reduced. It is an object of the present invention to provide a door opening / closing mechanism capable of smoothly moving a vehicle to a vehicle.

[0009] In addition, the invention according to claim 4 is to provide a door opening / closing mechanism that can guide the lower end of the door by the guide groove and can smoothly open and close the door. It is. In addition to this, the invention according to claim 5 is to provide a door opening and closing mechanism that can smoothly open and close the door by forming a rotatable L-shaped connecting member. .

[0010] In addition, the invention according to claim 6 aims to provide a door opening / closing mechanism capable of opening both the right door and the left door by a single belt that rotates by the same driving source. Things. In addition, the invention according to claim 7 specifically specifies the invention according to claim 6, wherein the left and right doors are simultaneously set to the same position by a simple device using one orbiting belt. An object of the present invention is to provide a door opening / closing mechanism that can be moved at a moving speed and at the same moving distance, and that can smoothly open and close.

[0011]

SUMMARY OF THE INVENTION The present invention is to achieve the above object. The invention according to claim 1 is
The closed state where the opening (20) to be opened is closed, and the opening
An opening and closing mechanism for a door (10) that can be switched to an open state in which the (20) is opened, wherein both side edges (21) of the opening (20) extend from both side edges (21) toward the back. Side wall (30) is formed,
The opening and closing mechanism of the door (10) is such that one end of the door (10) on the side wall (30) side is
Lateral sliding part (13) that slides to the back side along (30), and door (10)
And a front sliding portion (14) for sliding the other end of the door along the side wall (30) along the opening (20), and the door (10) is arranged along the side wall (30) to close the door. It is characterized in that it can be switched from the state to the open state.

Here, the opening and closing mechanism of the door (10) is as follows.
It can be used for those having a door (10) that can switch between an open state and a closed state with an opening (20), for example, people and things on the upper and lower floors of a building. Door of the opening (20) of the car (16) of the elevator (15) to be moved
(10) and can be used as a door at the opening of a building, a bus or a truck entrance,
In particular, it is effective when used in a place where there is no room in the surrounding space.

According to the present invention, the lateral sliding portion (13) moves one end on the side wall (30) side of the door (10) in a state where the opening (20) is closed to the back side along the side wall (30). At the same time, the front sliding portion (14) moves the other end of the door (10) in a state where the opening (20) is closed to the side wall (30) along the opening (20). This allows the opening (2
The door (10) at the position that closes the opening (20) rotates the space inside the opening (20) by 90 degrees, and the door (10) is moved to the side edge (2) of the opening (20).
1) can be placed along the side wall (30), the opening (20)
Can be opened.

On the other hand, the door (10) housed as described above is
The opening (20) can be switched from the open state to the closed state by the operation opposite to that of the door (10) described above. That is, the lateral sliding portion (13) is provided with the door (1) housed along the side wall (30).
(0) is moved to the near side along the side wall (30), and the front sliding portion (14) is connected to the other end on the near side of the stored door (10) by the opening (20). Along the opposite side wall. As a result, the door (10) arranged along the side wall (30) is
(0) can be rotated 90 degrees in the opposite direction to the opening direction, the door (10) can be arranged along the opening (20), and the opening (20) is closed from the open state to the closed state. Can be switched to

Since the door (10) is arranged along the side wall (30) in the open state, the door (1) is smaller than the sliding door.
It is not necessary to separately form the storage space of (0) on the side of the opening (20). Thereby, the space around the opening (20) can be effectively used. In addition, since the door (10) has moved from the opening (20) to a position along the side wall (30) in the open state, a part of the door (10) closes the opening (20) and gets in the way. It won't be. Thereby, even in the open state, the opening area of the opening (20) can be widened.

The second aspect of the present invention is the first aspect of the present invention.
In addition to the features described, the front sliding portion (14) includes a front rail (31) slidably supporting one end of an upper portion of the door (10) along the opening (20), The horizontal sliding portion (13) includes a horizontal rail (32) slidably supporting the other end of the upper portion of the door (10) along the upper side of the side wall (30). The present invention
The front slide (14) is located on the front rail (31) along the opening (20).
It has. Therefore, by sliding one end of the upper part of the door (10) along the front rail (31), one end of the upper part of the door (10) can be moved along the opening (20). And the horizontal sliding portion (13) includes a horizontal rail (32) along the upper side of the side wall (30). Therefore, by sliding the other end of the upper part of the door (10) along the horizontal rail (32), the other end of the upper part of the door (10) can be moved along the side wall (30). That is, one end of the door (10) can be moved along the opening (20), and the other end of the door (10) can be moved along the side wall (30). It can be rotated 90 degrees and placed along the side wall (30). Similarly, by moving the insides of the horizontal rail (32) and the front rail (31) in the opposite direction, the door (10) is turned 90 degrees in the opposite direction to when the door (10) is opened, and the door (10) is rotated. Thereby, the opening (20) can be closed.

The third aspect of the present invention is the second aspect of the present invention.
In addition to the features described above, the door (10) is characterized in that the upper part of the door (10) is suspended by a horizontal rail (32) and a front rail (31). In the present invention, the door (10) is a front rail (31)
The horizontal rail (32) forms a hanging door that suspends the upper part of the door (10). For this reason, it is not necessary to form a wheel or the like for supporting or guiding the door (10) at the lower part of the door (10), and further, the lower surface of the opening (20) below the door (10). In addition, there is no need to form rails, grooves and the like for guiding such wheels and the like. Thereby, the lower surface of the opening (20) can be formed in a flat plane, and the peripheral members can be simplified. When the flat surface is used, a vehicle having a wheel, such as a trolley or a wheelchair, can be smoothly moved even when passing through the opening (20).

According to a fourth aspect of the present invention, in addition to the features of the first, second, or third aspect, the lower end of the door (10) is guided on the lower surface of the opening (20). Guide groove (40)
Is formed. In the present invention, a guide groove (40) for guiding the lower end of the door (10) is formed on the lower surface of the opening (20). This prevents the lower end of the door (10) from swinging while the upper end of the door (10) is suspended by the horizontal rail (32) and the front rail (31) above the opening (20). As a result, the movement of the door (10) can be made sure and stable, and the opening and closing work can be made smooth.

According to a fifth aspect of the present invention, in addition to the features of the second, third or fourth aspect, the front rail (31) is disposed at right angles to the horizontal rail (32). And the door (10), which is in a state in which the opening (20) is closed, is located farther than the standing position of the door (10), and the door (10) is attached to the front rail (31).
A front rail moving vehicle (51) moving inside the vehicle, and an L-shape extending from the door (10) toward the front rail (31) to connect the front rail moving vehicle (51) and the door (10). L-shaped connecting member (5
The L-shaped connecting member (53) is formed so as to be rotatable around the front rail moving vehicle (51), and the front rail moving vehicle (51) opens the door (10). The horizontal rail
It is characterized by being located closer to the front rail (31) than on the longitudinal extension of (32).

In the present invention, an L-shaped connecting member (53) rotatable about the front rail moving vehicle (51) is formed between the front rail moving vehicle (51) and the door (10). ing. For this reason, the door (1
(0) is open, the horizontal rail (3
When a force for moving along the 2) is applied, the moving force is applied to the front rail moving vehicle (5) via the L-shaped connecting member (53).
Join 1). Since the front rail moving vehicle (51) is disposed on the front rail (31) side with respect to the longitudinal extension of the horizontal rail (32), the component of the moving force is reduced by the front rail moving vehicle. (51) can be moved along the front rail (31). As a result, the door (10) is moved and the opening (2
0) can be moved from the open state to the closed state.

According to a sixth aspect of the present invention, in addition to the features described in the second, third, fourth or fifth aspect, the door (10) is provided with the left edge ( The left door (12) accommodated along the side wall (30) connecting to the (23), and the right door accommodated along the side wall (30) connected to the right edge (22) of the opening (20). (11), the right door (11) and the left door (12) are the same drive source
The opening (20) by the driving force from the driving unit (60) having the (64)
The drive unit (60) includes a drive source (64) that provides rotational driving force, a drive belt wheel (71) that is rotated by the drive source (64), and a drive belt wheel (71). And around several other belt wheels (70) and around the left door (12)
And a single belt (63) to which the right door (11) is connected.

In the present invention, a left door (12) and a right door (11) are connected to one belt (63), and the belt (63) is connected to a driving source (64).
The rotational driving force is transmitted by the drive belt wheel (71), and is set so as to go around between a plurality of other belt wheels. Thereby, the left door (12) is driven by the same drive source (64).
And the right door (11) can be moved at the same time and with the same moving amount and the same moving speed. Thereby, the movement of the door (10) can be made stable and smooth, and the opening and closing of the door (10) can be made smooth.

The invention according to claim 7 is the same as the above-described claim 6.
In addition to the features described, the horizontal rail (32) has a left horizontal rail (33) that guides the left door (12) and a right horizontal rail that guides the right door (11).
(34), the belt wheel (70) is a left front belt wheel (72) disposed above the front end on the opening (20) side of the left horizontal rail (33).
And a right end belt wheel (73) disposed above the front end of the right side rail (34) on the opening (20) side, and the belt (63) is moved from the left end belt wheel (72) to the left side rail. (33) A belt portion (65) for the left door that passes through the back side and is hung over the right tip belt wheel (73),
The right front belt wheel (73) continues to the left door belt section (65)
From the right side rail (34) passing through the back side, the left end belt car (72)
The right door belt part (66) and the left door (12)
The end on the side wall (30) side is fixed to the left door belt portion (65), and the end on the side wall (30) side of the right door (11) is connected to the right door belt portion (6).
It is characterized by being fixed to 6).

According to the present invention, the end of the left door (12) on the side wall (30) side is fixed to the left door belt (65), and the side wall (3) of the right door (11) is fixed.
The end on the 0) side is fixed to the right door belt portion (66).
First, in a state where the door (10) closes the opening (20), the left door belt portion (65) is disposed above the front end of the left side rail (33) on the opening (20) side. Left tip belt car (72)
From the left side rail (33), the belt (63) is made up of one belt and goes around.
The right door belt portion (66) extends from the right end belt wheel (73) disposed above the front end on the opening (20) side of the right side rail (34) toward the far side of the right side rail (34). Moving. This allows the left door
The end on the side wall (30) side of (12) is connected to the opening (2
The left side rail (33) is pulled and moved from above the top end on the 0) side. At the same time, the end on the side wall (30) side of the right door (11) is pulled from the upper end of the opening (20) side of the right side rail (34) toward the far side of the right side rail (34). Move. As a result, the right door (11) and the left door
(12) can be moved in the same direction via one orbiting belt (63), and can be shifted to the open state. And since there is one drive source (64), the right door (1
The device can be simplified as compared with a case where a driving device for driving each of 1) and the left door (12) is provided. In addition, the right door (11) and the left door (12)
Can be moved at the same moving speed and the same moving distance at the same time, and the opening and closing movement can be made smooth.

When the belt (63) is changed from the open state to the closed state, the belt (63) is rotated in the opposite direction to that described above, whereby the door (10) is moved in the opposite direction to the above-described movement direction. It can be moved, and can be shifted to a closed state.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described in more detail with reference to the drawings. 1 to 6
FIG. 1 shows a first embodiment of the present invention.
Is a plan view of a door opening / closing mechanism in a state where an opening of a car of the elevator is closed, FIG. 2 is a vertical sectional view of a door opening / closing mechanism in a state where a car opening of the elevator is closed, and FIG. 3 is a car of the elevator. 4 is a plan view of a door opening / closing mechanism in a state where a part of the opening is opened, FIG. 4 is a plan view of a door opening / closing mechanism in a state where a car opening of the elevator is opened, and FIG. 5 is a car opening of the elevator. And FIG. 6 is a schematic perspective view of a car door opening / closing mechanism of an elevator.

First, the configuration of the present embodiment will be described. The opening / closing mechanism of the door 10 according to the present embodiment is formed in the elevator 20 at the opening 20 of the car 16 on a rectangular box capable of transporting people and things to the upper and lower floors of the building. Specifically, the opening and closing mechanism of the door 10 switches between a closed state in which the opening 20 opened on the landing side of the car 16 to enter and exit the car 16 and an open state in which the opening 20 is opened. It is possible.

On both side edges 21 of the opening 20 of the car 16, side walls 30 are formed in a vertical direction from the both side edges 21 toward the back side. The door 10 has a left door 12 housed along a side wall 30 connected to a left edge 23 of the opening 20 and a right door housed along a side wall 30 connected to a right edge 22 of the opening 20. 11 and are provided.

The opening and closing mechanism of the door 10 includes a lateral sliding portion 13 for sliding the end of the door 10 on the side wall 30 side to the back side along the side wall 30 and an end of the door 10 on the side opposite to the side wall. And a front sliding portion 14 that slides along the opening 20 toward the side wall 30. That is, this door
The opening and closing mechanism of 10 uses the horizontal sliding portion 13 and the front sliding portion 14 to rotate the door 10 inside the car 16 and dispose it along the side wall 30 inside the car 16, It is formed so as to be switchable from a closed state to an open state.
Specifically, the front sliding portion 14 extends along the upper side of the opening 20.
A front rail 31 slidably supports the upper end of the door 10 on the opposite side wall 30 side, and the horizontal sliding portion 13 extends along the upper side of the side wall 30 along the upper side wall 30 end of the door 10. A horizontal rail 32 for slidably supporting the section is provided. This side rail 32 is a left side rail 33 arranged on the left side of the car 16 to guide the left door 12.
And a right side rail 34 arranged on the right side of the car 16 to guide the right door 11. The right door 11 and the left door 12
Is formed as a hanging door by suspending the upper part of each door 10 by the horizontal rail 32 and the front rail 31. The front rail 31 is disposed at right angles to the horizontal rail 32, and is disposed further behind the car 16 than the standing position of the door 10 in a state where the opening 20 is closed.

Each of the doors 10 is connected to a horizontal rail moving vehicle 52 moving inside the horizontal rail 32, a front rail moving vehicle 51 moving inside the front rail 31, and connecting the front rail moving vehicle 51 and the door 10. L extending from the door 10 toward the front rail 31
And an L-shaped connecting member 53 having a U-shape. The L-shaped connecting member 53 is formed so as to be rotatable around the front rail moving vehicle 51 as an axis. And the front rail moving car
51 is set to be closer to the front rail 31 than an extension of the horizontal rail 32 in the longitudinal direction when the door 10 is opened.

The right door 11 and the left door 12 are formed so that the opening 20 can be opened and closed by a driving force from a driving unit 60 having the same driving source 64. Specifically, the driving unit 60 includes a driving source 64 that is configured by an electric motor and provides a rotational driving force, and the driving source 64
A drive belt wheel 71 having the same rotation shaft as the above and a rotating drive belt wheel 71, and a single belt connected to the left door 12 and the right door 11 while being wound around the drive belt wheel 71 and a plurality of other belt wheels 70 and orbiting. Belt 63.

The belt pulley 70 has an opening of the left side rail 33.
The vehicle has a left front belt wheel 72 disposed above the front end on the 20 side, and a right front belt wheel 73 disposed above the front end on the opening 20 side of the right lateral rail 34. The belt 63 passes from the left end belt wheel 72 to the left side rail 33 and passes through the right end belt wheel 73.
For the left door belt section 65 and the right door belt section 72 that is continuous with the left door belt section 65 from the right tip belt car 73 and passes over the right side rail 34 to the left tip belt car 72. And a belt portion 66. Then, the end on the side wall 30 side in the closed state of the left door 12 is fixed to the left door belt portion 65, and the end on the side wall 30 side in the closed state of the right door 11 is fixed to the right door belt portion 66. Have been.

Further, the lower surface of the opening 20 and the front rail
A guide groove 40 for guiding the lower end of the door 10 is formed below the door 31. On the other hand, an L-shaped projecting member 41 that can be inserted into the guide groove 40 is formed on the lower surface of the end on the side opposite to the side wall 30 in the closed state of each door 10, and the door 10 is inserted into the guide groove 40 to It is formed so as to be able to be guided along the guide groove 40. Next, the operation and effect of the above-described embodiment will be described.

First, the process of transition from the state in which the door 10 closes the opening 20 as shown in FIGS. 1 and 2 to the state in which the door 10 is opened as shown in FIGS. 4 and 5 will be described. . First, the rotational driving force from the driving source 64 is
The belt 63 is rotated counterclockwise when viewed from above. At that time, the end on the side wall 30 side in the closed state of the left door 12 is fixed to the left door belt portion 65, and the end on the side wall 30 side in the closed state of the right door 11,
It is fixed to the belt 66 for the right door. Therefore, the left door belt portion 65 moves from the left front belt wheel 72 disposed on the opening 20 side of the left side rail 33 toward the back side of the left side rail 33. As a result, as shown in FIG.
The horizontal rail moving vehicle 52 at the end on the side of the 30 moves by being pulled from the opening 20 side of the left horizontal rail 33 toward the depth side of the left horizontal rail 33. At the same time, the front rail moving car of the left door 12
51 moves from the right end of the front rail 31 for the left door 12 to the left end.

Since the belt 63 is made up of one belt and is circling, at the same time, the right door belt 66 is moved from the right front belt wheel 73 disposed on the opening 20 side of the right horizontal rail 34 to the right side. It moves toward the back side 73 of the rail. This allows
As shown in FIG. 3, the side rail moving vehicle 52 at the end of the right door 11 on the side wall 30 side is pulled from the opening 20 side of the right side rail 34 toward the far side of the right side rail 34 and moves. I do. at the same time,
The front rail moving vehicle 51 of the right door 11 is moved by being pulled from the left end to the right end of the front rail 31 for the right door 11.

When the belt 63 is continuously rotated, the left door 12 and the right door 11 can be arranged along the side wall 30 as shown in FIGS. In this manner, the right door 11 and the left door 12, which have been in the closed state, can be moved in the same direction via the one orbiting belt 63, and can be shifted to the open state. In the present embodiment, since the drive source 64 is composed of one, the device can be simplified as compared with the case where a drive device that drives the right door 11 and the left door 12 independently is provided. In addition, since the right and left doors 11 and 12 are moved by one revolving belt 63, both can be simultaneously moved at the same moving speed and the same moving distance, so that the opening and closing movement is stable and smooth. It can be something.

On the other hand, in order to shift from the open state to the closed state, the rotation of the electric motor of the drive source 64 is changed in the opposite direction, and the rotation direction of the belt 63 is rotated clockwise in the opposite direction to the above. By doing so, the door 10 can be moved in the opposite direction to the above-described movement direction, and can be shifted to the closed state. In the opening and closing mechanism of the door 10 according to the present embodiment, since the door 10 is arranged along the side wall 30 in the open state, the storage space of the door 10 is separately provided on the side of the opening 20 as compared with the sliding door. Need not be formed. This allows the opening
The space around 20 can be used effectively. That is, although not particularly shown, the internal space of the hoistway on which the elevator 15 moves up and down can be used only for the moving space of the car 16 without using it for other extra space such as the storage space of the door 10. As a result, the space for the elevator 15 can be reduced.

When the door 10 is in the open state,
Since the door 10 is moved from the position 20 to the position along the side wall 30, a part of the door 10 does not obstruct the opening 20 so as not to be obstructed. Thus, the opening area of the opening 20 can be increased even in the open state. In the present embodiment, an L-shaped member 53 rotatable around the front rail moving vehicle 51 is formed between the front rail moving vehicle 51 and the door 10. For this reason, when a force for moving the door 10 along the horizontal rail 32 is applied to the door 10 in a state where the door 10 is opened, the moving force is applied to the front rail moving vehicle 51 via the L-shaped member 53. Join. At this time, since the front rail moving vehicle 51 is disposed closer to the front rail 31 than on the extension of the longitudinal direction of the horizontal rail 32, the component of the moving force is reduced by the front rail moving vehicle 51.
Can be moved along the front rail 31 in the direction in which the door 10 is closed. Thereby, the door 10 can be moved, and the opening 20 can be moved from the open state to the closed state.

In this embodiment, the door 10 is formed by a front rail 31 and a horizontal rail 32 as a hanging door in which an upper part of the door 10 is hung. For this reason, at the bottom of the door 10,
There is no need to form wheels for supporting and guiding the door 10, and further, it is not necessary to form rails for guiding such wheels on the lower surface of the opening 20 below the door 10. Thus, it is possible to suppress the formation of the uneven portion on the lower surface of the opening 20, and to simplify the peripheral member. This makes it possible to smoothly move a wheeled vehicle such as a trolley or a wheelchair even when it passes through the opening 20, which is very convenient for using the trolley or the wheelchair in the elevator 15.

In this embodiment, the guide groove 40 for guiding the lower end of the door 10 is provided on the lower surface of the opening 20 and on the front rail 31.
The L-shaped projecting member 41 extending from the lower end of the door 10 is slidably inserted into the guide groove 40. This makes it possible to prevent the lower end of the door 10 from swinging while the upper end of the door 10 is suspended by the horizontal rail 32 and the front rail 31 above the opening 20.
The movement of 10 can be made sure and stable, and the opening and closing work can be made smooth. In addition, this door 10
Due to the hanging door, the load of the door 10 is supported at the upper part of the opening 20, and the load of the door 10 is not applied to the L-shaped projecting member 41 and the guide groove 40 at the lower end of the door 10. . For this reason,
The diameter of the L-shaped projecting member 41 can also be reduced, and the width of the guide groove 40 can be reduced accordingly. Thereby, the unevenness formed on the lower surface of the opening 20 can be made small, and the lower surface of the opening 20 can be maintained in a flat plane. The effect can be small.

As described above, the door 10 according to the present embodiment
The opening and closing mechanism of the door 10 is rotated 90 degrees around the perimeter of the car 16, without colliding with people or objects inside the car 16,
The door 10 can be moved smoothly. Further, the space for the storage of the door 10 is not required outside the car 16, the space of the entire cross section of the elevator 15 can be reduced, and the door of the home elevator 15 or the like using a small space can be used.
Suitable for 10 opening and closing mechanisms.

Next, a second embodiment of the present invention will be described. 7 to 10 show a second embodiment of the present invention. FIG. 7 is a plan view of a door opening / closing mechanism in a state where an opening of a car of an elevator is closed, and FIG. FIG. 9 is a vertical sectional view of a door opening / closing mechanism in a state where a car opening is closed, FIG. 9 is a plan view of a door opening / closing mechanism in a state where a car opening is opened, and FIG. 10 is a car door of the elevator. 1 is a schematic perspective view of the opening / closing mechanism of FIG.

This embodiment is substantially the same as the first embodiment, in which the front rail 31 is formed above the standing position of the door 10 in a state where the opening 20 is closed. Side rail
Reference numeral 32 denotes a member disposed inside the car 16 with respect to the standing position of the door 10 in a state where the opening 20 is opened. The L-shaped connecting member 53 is connected to the horizontal rail moving vehicle 52 of the horizontal rail 32.
The door 10 is formed so as to extend from the door 10 toward the side rail 32 to connect the door 10 to the door 10. At the lower end of the door 10, an I-shaped I-shape that slides inside the guide groove 40 is provided. The point that the projecting member 42 is formed is different from the first embodiment. The other configuration is substantially the same as that of the first embodiment, and the same components are denoted by the same component numbers and description thereof is omitted. In this embodiment, the same operation and effect as those of the first embodiment can be obtained.
The door 10 can be moved smoothly using a small space without colliding with people or objects inside the 16.

[0044]

Since the present invention is configured as described above, it has the following effects. Claim 1
According to the invention described, in the open state, it is not necessary to separately form a storage space for the door on the side of the opening as compared with the sliding door, and the door is less bulky than the folding door, and the door closes the opening. It is possible to provide a door opening / closing mechanism that has a small area, does not obstruct the opening, and does not reduce the opening area of the opening.

According to the second aspect of the present invention, since the front rail and the horizontal rail are formed, it is possible to provide a door opening / closing mechanism capable of slidably supporting an upper portion of the door. According to the third aspect of the present invention, since the door is a hanging door, the lower surface of the opening can be formed flat, the surrounding members can be simplified, and the opening into the opening can be reduced. It is possible to provide a door opening / closing mechanism that can smoothly move a car.

According to the fourth aspect of the present invention, it is possible to provide a door opening / closing mechanism that can guide the lower end of the door by the guide groove and can smoothly open and close the door. According to the fifth aspect of the present invention, the rotatable L
By forming the letter-shaped connecting member, it is possible to provide a door opening / closing mechanism that can smoothly open and close the door.

According to the sixth aspect of the present invention, it is possible to provide a door opening / closing mechanism capable of opening both the right door and the left door with a single belt rotating by the same driving source. According to the seventh aspect of the present invention, the left and right doors can be simultaneously moved at the same moving speed and the same moving distance by using a single belt to rotate with a simple device, so that a smooth operation can be achieved. A door opening / closing mechanism that can be opened / closed can be provided.

[Brief description of the drawings]

FIG. 1 is a plan view of a first embodiment of the present invention, showing a door opening / closing mechanism in a state where an opening of a car of an elevator is closed.

FIG. 2 is a longitudinal sectional view of the first embodiment of the present invention, showing a door opening / closing mechanism in a state where an opening of a car of an elevator is closed.

FIG. 3 is a plan view of the first embodiment of the present invention, showing a door opening / closing mechanism in a state where a part of an opening of a car of an elevator is opened.

FIG. 4 is a first embodiment of the present invention and is a plan view showing a door opening and closing mechanism in a state where an opening of a car of an elevator is opened.

FIG. 5 is a longitudinal sectional view showing a door opening and closing mechanism in a state where an opening of a car of an elevator is opened according to the first embodiment of the present invention.

FIG. 6 is a schematic perspective view showing a mechanism for opening and closing a car door of an elevator according to the first embodiment of the present invention.

FIG. 7 is a plan view showing a door opening / closing mechanism in a state in which an opening of a car of an elevator is closed in a second embodiment of the present invention.

FIG. 8 is a longitudinal sectional view showing a door opening / closing mechanism in a state where an opening of a car of an elevator is closed, according to a second embodiment of the present invention.

FIG. 9 is a plan view showing a door opening and closing mechanism according to a second embodiment of the present invention, in which a part of an opening of a car of an elevator is opened.

FIG. 10 is a schematic perspective view illustrating a mechanism for opening and closing a car door of an elevator according to a second embodiment of the present invention.

FIG. 11 is a plan view showing a conventional elevator and a door opening / closing mechanism thereof.

FIG. 12 is a partial schematic longitudinal sectional view showing a conventional elevator and its door opening and closing mechanism.

FIG. 13 is a schematic perspective view showing a conventional elevator, showing a door opening / closing mechanism thereof.

[Explanation of Signs] 10 Door 11 Right door 12 Left door 13 Side sliding part 14 Front sliding part 15 Elevator 16 Basket 20 Opening 21 Side edge 22 Right side edge 23 Left side edge 30 Side wall 31 Front rail 32 Side rail 33 Left side Rail 34 Right side rail 40 Guide groove 41 L-shaped projecting member 42 I-shaped projecting member 51 Front rail moving vehicle 52 Lateral rail moving vehicle 53 L-shaped connecting member 60 Drive unit 63 Belt 64 Drive source 65 Left door belt 66 Right Door Belt 70 Belt Wheel 71 Drive Belt Wheel 72 Left End Belt Wheel 73 Right End Belt Wheel 110 Elevator 120 Hoistway 121 Sliding Door Storage Space 130 Basket 140 Platform Opening 141 Platform Slide Rail 150 Basket Open 151 Basket Slide Rail 160 Platform sliding door 161 Platform sliding door storage section 162 Platform sliding door drive section 170 Car sliding door 171 Car sliding door storage section 172 Car sliding door drive section 180 Car driving section

Claims (7)

[Claims] 1. A closed state in which an opening to be opened is closed,
A door opening / closing mechanism that can be switched to an open state in which the opening is opened, wherein side walls are formed on both side edges of the opening from both side edges toward a back side. A lateral sliding portion that slides one end of the side wall of the door to the back side along the side wall; and a front sliding portion that slides the other end of the door to the side wall along the opening. A door opening / closing mechanism characterized in that the door opening / closing mechanism is formed so as to be switchable from a closed state to an open state by being disposed along the door. 2. The front sliding portion includes a front rail slidably supporting one end of an upper portion of the door along the upper side of the opening, and the lateral sliding portion includes a door along the upper side of the side wall. The door opening / closing mechanism according to claim 1, further comprising a horizontal rail that slidably supports the other end of the upper portion of the door. 3. The door opening / closing mechanism according to claim 2, wherein the door is a hanging door in which an upper part of the door is hung by a horizontal rail and a front rail. 4. A guide groove for guiding a lower end of a door is formed on a lower surface of the opening.
Or the door opening and closing mechanism according to claim 3. 5. The front rail is disposed at a right angle to the horizontal rail, and is disposed further back than a standing position of the door in a state where the opening is closed, and the door is located inside the front rail. A front rail moving vehicle, and an L-shaped L-shaped connecting member extending from the door toward the front rail to connect the front rail moving vehicle and the door. The front rail moving vehicle is formed so as to be rotatable about the front rail moving vehicle as an axis, and the front rail moving vehicle is located closer to the front rail than an extension of the longitudinal direction of the horizontal rail when the door is opened. Claim 2, Claim 3 or Claim 4
Door opening and closing mechanism as described. 6. The door includes a left door housed along a side wall connected to a left edge of the opening, and a right door housed along a side wall connected to a right edge of the opening, The right door and the left door are formed so as to be able to open and close an opening by a driving force from a driving unit having the same driving source. The driving unit includes a driving source for providing a rotational driving force, and a driving belt wheel rotated by the driving source And a single belt connected to the left door and the right door while being wrapped around the drive belt wheel and the other plurality of belt wheels. , Claim 4 or Claim 5
Door opening and closing mechanism as described. 7. The lateral rail includes a left lateral rail for guiding a left door, and a right lateral rail for guiding a right door, and the belt wheel is disposed above a left end of the left lateral rail on an opening side. It has a tip belt wheel and a right tip belt wheel located above the tip on the opening side of the right side rail. The belt passes from the left tip belt wheel to the left side rail deep side and hangs on the right tip belt wheel. A belt portion for the left door to be passed, and a belt portion for the right door that is passed from the right tip belt car to the left side of the belt car continuously from the right tip belt car to the left door belt section, 7. The door according to claim 6, wherein an end on the side wall side of the left door is fixed to the left door belt portion, and an end portion on the side wall side of the right door is fixed to the right door belt portion. Opening and closing mechanism.