JP2002029410A - Door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door device thinning a shutter case and enlarging the frontage of an opening. SOLUTION: A first door body 200 and a second door body 300 are made to appear from/disappear into one end and the other end of the shutter case 111 respectively, a first connection portion 210 and a second connection portion 310 are projected from the rear end upper part of the first door body 200 toward the other door body and from the rear end lower part of the second door body 300 to the other door body respectively, and the projecting positions are so set as to mutually parallel in the same plane. The respective door bodies are connected to drive mechanisms by the first connection portion 210 and the second connection portion 310 and the drive mechanisms of the both doors are disposed in one face side of the door bodies. They are deviately disposed in the top/bottom so that the rear ends of the door bodies can sufficiently approach to each other without colliding the first connection portion and the second connection portion with each other, and the ratio of the whole shutter ease length to the appearance length of the door can be minimized. The drive mechanisms are disposed in the same side so as to thin the shutter case.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door device through which a door body enters and exits from a first opening and a second opening provided at both ends of a door pocket.

[0002]

2. Description of the Related Art In a movable fence to be installed at a platform of a transportation facility such as a vehicle, the width of the opening at the time of opening is generally a size in which a stop position error of the vehicle or the like is added to the size of the width of the entrance of the vehicle. . In addition, the movable door of the double fence that is independent for each opening is opened and closed with a stroke fixed to the installation base.

If the stop position error is set to be large, the width of the opening of the movable fence opening must be increased because the entrance / exit interval of the vehicle or the like is fixed, and the door is stowed due to interference with the adjacent door pocket. It becomes difficult. For this reason, in the conventional movable fence, as shown in FIGS. 10, 11, and 12, the door itself is configured to expand and contract in two steps, so that the opening frontage can be increased while reducing the size of the door pocket. There is something. 10 shows the upper surface of the movable fence, FIG. 11 shows the front with the door closed, and FIG. 12 shows the front with the door opened and stored in the door pocket.

[0004] In this movable fence 1000, the door is an outer door 100.
1 and an inner door 1002.
When stored in 003, the inner door 1002 is accommodated in the outer door 1001. On the other hand, when closing the door, the inner door extends from the outer door.

[0005] Further, as shown in FIGS.
In some cases, the rear end of the doors 1011 is overlapped in the thickness direction of the door pocket in 013 to thereby enlarge the opening frontage. FIG. 13 shows the upper surface of the movable fence in FIG.
Reference numeral 4 denotes the front of the movable fence with the door closed.

[0006]

As shown in FIG. 10 and the like, the use of a door which can be expanded and contracted in two stages has a problem that the structure is complicated. On the other hand, as shown in FIG. 13 and the like, in the case where the rear ends of the doors overlap each other in the thickness direction of the door pocket in the door pocket, when the door pocket becomes thick and a plurality of movable fences are connected in series, the door is opened. However, there is a problem that they are not aligned.

The present invention has been made in view of such problems of the conventional technology, and has as its object to provide a door device having a thin door pocket and a large opening frontage.

[0008]

The gist of the present invention to achieve the above object lies in the following inventions. [1] First openings (11) provided at both ends of the door pocket (111)
2) and a door device through which the door body enters and exits from the second opening (113), wherein the first door body (200) supported to be able to advance and retreat on a predetermined straight line, wherein the first opening (1)
12) and a second door body (300) supported so as to be able to move forward and backward along an extension of the movement trajectory of the first door body (200), wherein the second opening is provided. (113) through the door pocket (111), a first drive mechanism (220) for moving the first door body (200) forward and backward, and the second door body (300).
A second drive mechanism (320) for moving the first door body (320) forward and backward, and the first door body (200) is moved from a part of a rear end portion on the traveling direction side when entering the door pocket (111) in the traveling direction. A first connecting portion (210) that protrudes toward the side and is connected to the first driving mechanism (220);
00) is a second connection protruding from a part of the rear end on the traveling direction side when entering the door pocket (111) toward the traveling direction side and coupled to the second drive mechanism (320). And a projecting position of the first connecting portion (210) from the first door body (200) and a projecting position of the second connecting portion (310) from the second door body (300). The position is determined by the first door body (200) and the second door body (300).
The first connecting portion (21) formed when the
A door device wherein the movement locus of 0) and the movement locus of the second connecting portion (310) are set to be in the same plane and parallel to each other.

[2] First doors provided at both ends of the door pocket (111)
In a door device in which a door body enters and exits from each of an opening (112) and a second opening (113), a first door body (200) supported so as to be able to advance and retreat on a predetermined straight line, wherein the first opening ( 112) and a second door body (300) supported so as to be able to advance and retreat on an extension of the movement trajectory of the first door body (200) through the second opening. (113) through the door pocket (11
1) a first drive mechanism (220) for moving the first door body (200) forward and backward, and a second drive mechanism (320) for moving the second door body (300) forward and backward. The first drive mechanism (220) includes the door pocket (1).
The first fixing portion (221, 223) fixed to the side of 11)
, A first moving unit (225), and the first moving unit (22).
5) a first moving mechanism (222, 225) that linearly moves the first fixed part (221, 223) relative to the first fixed part (221, 223);
And a first driving unit (224) for generating a driving force for the relative movement, wherein the second driving mechanism (320) is a second driving mechanism (320) fixed to the door pocket (111) side. Fixed part (321, 323) and second moving part (325)
And the second moving part (325) is connected to the second fixed part (32).
1, 323), and a second drive mechanism (324) for generating a driving force for the relative movement. The first door body (200) protrudes in the traveling direction from a part of a rear end on the traveling direction side when entering the door pocket (111) and is connected to the first moving unit (225). A first connecting portion (210), wherein the second door body (3
00) is a second connecting portion () protruding in the traveling direction from a part of a rear end portion on the traveling direction side when entering the door pocket (111) and connected to the second moving portion (325). 3
10), and the protruding position of the first connecting portion (210) from the first door body (200) and the second connecting portion (31).
0) and the first connecting portion (210) formed when the first door body (200) and the second door body (300) move forward and backward with the projecting position from the second door body (300). A) the moving trajectory of the second connecting portion (310) and the moving trajectory of the second connecting portion (310) are set in the same plane and parallel to each other.

[3] The first moving mechanism (222, 225) of the first drive mechanism (220) is connected to the door pocket (11).
The first fixing portions (221, 22) fixed to the side of (1)
3) a ball screw (222) supported by the ball screw (222) extending at least over a range in which the first connection part (210) of the first door body (200) is to be moved forward and backward; Nut member (22)
5), wherein one of the ball screw (222) and the nut member (225) is rotatably supported and the other is non-rotatably supported, and the first drive unit (224) is provided. Rotates the rotatable one of the nut member (225) and the ball screw (222), and the first moving part (225) moves together with the nut member (225). A second moving mechanism (32) of the second driving mechanism (320).
2, 325) are ball screws (322) supported by the second fixing portions (321, 323) fixed to the side of the door pocket (111), and include at least the second door body (30).
And the ball screw (322) extending over the range in which the second connecting portion (310) of (0) is to be moved forward and backward.
And supports one of the ball screw (322) and the nut member (325) in a rotatable manner and the other in a non-rotatable manner. The second driving unit (324) is configured to rotationally drive the rotatable one of the nut member (325) and the ball screw (322), and the second moving unit (325) is configured to rotate the nut member (325) or the ball screw (322). The door device according to [1] or [2], which is a member that moves together with the nut member (325).

[4] The stop positions of the first door body (200) and the second door body (300) when stored in the door pocket (111) are determined by the stop positions of the first connecting portion (210). The front end of the second connecting portion (310) is closer to the second
The door device according to [1], [2], or [3], wherein the door device (300) is set at a position advanced to the rear end side.

[5] The first connection part (210) and the second connection part (310) and the first door body (200) and the second door body (300) are in the same plane. The door device according to [1], [2], [3] or [4], which is a feature.

[6] The first connecting portion (210) and the second connecting portion (310) are in a plane different from the plane where the first door body (200) and the second door body (300) exist. The door device according to [1], [2], [3] or [4], characterized in that:

[7] Both the first drive mechanism (220) and the second drive mechanism (320) are arranged on one side of the first door body (200) [1]. ], [2], [3], [4], [5] or [6]
2. The door device according to item 1.

[8] A movable platform fence device (10) erected along the side edge on the platform (10) to separate the track side where the train passes from the platform (10) side.
0), [1], [2], [3],
The door device according to [4], [5], [6] or [7].

[9] At least the first drive mechanism (22)
0) and the second drive mechanism (320) is arranged on the opposite side to the track side with respect to the first door body (200) and the second door body (300). [8] Door device.

The present invention operates as follows. A first connecting portion (210) that receives a force for forward / backward movement from the first drive mechanism (220) protrudes from a part of a rear end of the first door body (200) in a traveling direction at the time of immersion. So the first
Most of the door body (200) can emerge from the door pocket (111). The same applies to the second door body (300).

The first door body (2) of the first connecting portion (210)
00) and the projecting position of the second connecting portion (310) from the second door body (300) are defined by the first door body (200).
And the movement trajectory of the first connecting portion (210) formed when the second door body (300) moves forward and backward, and the second connecting portion (31).
The movement trajectory of 0) is set to be in the same plane and parallel. As a result, even if the first door body (200) and the second door body (300) are accommodated to the depth inside the door pocket (111), the first connection part (210) and the second connection part (310) are not connected. They do not collide with each other.

That is, when the first door body (200) and the second door body (300) are stored in the door pocket (111), the stop position is determined. It can be set at a position that has advanced to the rear end side of the second door body (300) from the front end of the connecting portion (310).

For example, a first connecting part (210), a second connecting part (310), a first door (200), and a second door (30).
0) is located in the same plane, the front end of the first connecting portion (210) and the rear end of the second door body (300) are in contact with each other or the front end of the second connecting portion (310) The first door body (200) can be housed in the door pocket (111) in close proximity immediately before contact with the rear end. Thereby, the total length of the door pocket (111) can be shortened, and the opening frontage can be enlarged accordingly.

Further, if the first connecting part (210) and the second connecting part (310) are located on a plane different from the plane on which the first door body (200) and the second door body (300) are located, Even if the door body is stored as far as the back of the door pocket (111), the first connection part (210) and the second door body (300) come into contact with each other, or the second connection part (310) and the first door body (200). ) Does not come into contact with. Therefore, the first door body (200)
And until the rear ends of the second door body (300) come into contact with each other.
These doors can be stored deep inside the door pocket (111), and the opening frontage can be further increased.

Since the first connecting portion (210) and the second connecting portion (310) are in the same plane, the thickness of the door pocket (111) can be reduced as compared with the case where the connecting portions are in different planes. it can. For example, if the first connection part (210) and the second connection part (310) are arranged in alignment with the surface of the first door body (200), the first drive mechanism (220) and the second drive mechanism (320) ) Are arranged on one side of the first door body (200). Thereby, the first connecting portion (2
10) and the first drive mechanism (220) and the second connecting portion (3).
The thickness of the door pocket (111) can be reduced as compared with a case where the 10) and the second drive mechanism (320) are separately arranged on the front side and the back side of the door body.

As the first driving mechanism (220), first fixing portions (221, 22) fixed to the side of the door pocket (111) are provided.
3), a first moving unit (225), and a first moving unit (22).
5) a first moving mechanism (222, 225) for linearly moving the first fixed part (221, 223) relative to the first fixed part (221, 223), and a first driving part (224) for generating a driving force for the relative movement.
It is good to use what has. Similarly, as the second drive mechanism (320), a second fixed part (321, 323) fixed to the door pocket (111) side and a second moving part (32)
5) and the second moving part (325) are connected to the second fixed part (321, 321).
A mechanism having a second moving mechanism (322, 325) for linearly moving relative to H.323) and a second driving unit (324) for generating a driving force for relative movement are used.

For example, the moving mechanism is an endless belt,
The endless belt may be circulated by a driving unit, and a moving unit may be attached to a predetermined portion of the belt. The moving unit may be moved forward and backward by a screw feed mechanism. That is, a ball screw (222, 322) supported by the fixed portion, which extends at least over a range in which the corresponding connecting portion of the door body is to be moved forward and backward, and a ball screw (222, 322) A moving mechanism is constituted by the combined nut members (225, 325). Then, one of the ball screw (222, 322) and the nut member (225, 325) is rotatably supported, and the other is non-rotatably supported. The moving part is configured to move forward and backward together with the nut part.

In addition, the present door device is provided on a platform (1).
0) It is suitable for a movable platform fence device (100) that is erected along the upper side edge and separates a track side where a train passes and a platform (10) side. In this case, at least the first drive mechanism (220) and the second drive mechanism (32)
0) is opposite to the track side with respect to the first door body (200) and the second door body (300), that is, the platform (1)
If the device is placed from the inside of 0), the installation and maintenance work of the device can be performed from the inside of the fence (anti-track side).
Work safety can be improved.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 7 show an embodiment of the present invention. 2 and 3 show the movable home fence device 100 to which the door device according to the present invention is applied, FIG. 4 shows the movable home fence device 100 from above, and FIG. 5 shows the movable home fence device 100 from the side. Respectively.

The movable platform fence device 100 is erected along the side edge on the platform 10 and
A fence is formed between the train and a train that stops at a fixed position on a track (track) extending to the side of the train, thereby ensuring the safety of passengers when getting on and off the train. Movable platform fence device 100
Is composed of one or more double door devices 110 and single door devices 120 arranged at both ends thereof.
2 to 4 show only one double door device 110. FIG.

Double door device 110 and single door device 1
Each of the 20 door pockets 111 and 121 is generally formed in a flat rectangular box shape, and the lower end of each of the door pockets 111 and 121 is fixed on the foundation of the platform 10.

On the platform 10, a double door device 110 and a single door device 120 are arranged such that an opening frontage is located at a position corresponding to each entry / exit door (not shown) of a train stopped at a predetermined position. Although the train normally stops at a fixed position, an allowable error within a predetermined range is set for the reference fixed position. To cope with this error, the opening frontage of the movable platform fence device 100 is set wider than the width of the opening frame of the passenger door of the train.

The one-sided door device 120 includes a door pocket 121 having an opening on only one side, a single door 122 that protrudes and disappears through the opening, and a drive mechanism (not shown) for moving the door 122 forward and backward. ing. Double door device 110
Is a door pocket 111 having openings at both ends and a first door body 200.
, A second door 300, a first drive mechanism 220 serving as a mechanism for moving the first door 200 forward and backward, and a second drive mechanism serving as a drive for moving the second door 300 forward and backward. 320.

The first door body 200 and the second door body 300 move forward and backward on the same straight line, and each of the door bodies 200 and 30 at the leading side in the traveling direction when entering the door pocket 111.
0 rear ends are opposed to each other. That is,
The first door body 200 and the second door body 300 are in the same plane,
The second door 300 moves forward and backward along the extension of the movement trajectory of the first door 200.

FIG. 1 schematically illustrates the structure of a double door apparatus 110. FIG. 7 is a schematic diagram showing a state where the end of the door pocket 111 on the first opening 112 side is broken and the inside of the door pocket 111 is viewed. As shown in the drawing, the first door body 200 that protrudes and disappears through the first opening 112 provided at one end of the door pocket 111 has a flat rectangular shape having a predetermined thickness. First door 2
00 from the part near the upper end of the first door 2
The first connecting portion 210 protrudes toward the traveling direction (direction indicated by the arrow 201) when 00 enters the door pocket 111.

As shown in FIG. 6, the first connecting portion 210
A door protruding portion 211 protruding from the rear end of the first door 200 in a rectangular shape by a predetermined amount in the direction of movement of the door in the same plane as the first door 200 in the immersion direction of the door; And a connection base 212 in the form of a rectangular flat plate, the other end of which protrudes further in the advancing direction when the door is retracted than the door body projection 211.

The second door 300, which protrudes and retracts through the second opening 113 provided at the end opposite to the end provided with the first opening 112 in the door pocket 111, has a predetermined thickness similarly to the first door 200. In the shape of a flat rectangular plate. Second door body 30
0 of the rear end of the second door 3
The second connecting portion 310 protrudes toward the direction of travel when 00 enters the door pocket 111 (the direction indicated by the arrow 202).

As shown in FIG. 6, the second connecting portion 310
A door body projection 311 protruding from the lower rear end of the second door body 300 in the same direction as the second door body 300 in the traveling direction when the door is immersed in a rectangular shape by a predetermined amount, and one end side of the door body projection 311 And a connection base 312 in the form of a rectangular flat plate, the other end of which protrudes further in the advancing direction when the door is immersed than the door body protrusion 311.

Connection base 212 and connection base 3
Numeral 12 is mounted on the platform 10 and attached to the surface of the front and back surfaces of the door body protrusions 211 and 311 opposite to the track side.

In the upper part of the door pocket 111 on the side opposite to the track with the first door body 200 and the second door body 300 interposed therebetween, the door pocket 111 has a height corresponding to the first connecting portion 210 and covers almost the entire width of the door pocket 111. An upper frame 221 is provided extending horizontally (in a direction in which the first door body 200 and the second door body 300 move forward and backward). In addition, inside the door pocket 111, there is provided a frame which forms a structure supporting each part, and the upper frame 221 forms a part thereof.

A guide rail 231 for the first door for guiding the first door body 200 that opens and closes is mounted on the upper surface of the upper frame 221. Connection base 212
, A first door guide roller 232 as a guided portion to be engaged with the first door guide rail 231 is attached. Most of the load of the first door 200 is received by the upper frame 221 via the first door guide roller 232 and the first door guide rail 231.

At the lower end of the rear end of the first door 200, a first
A door L-shaped member 240 is attached. The L-shaped member 240 for the first door is formed by connecting the L-shaped horizontal portion 240b to the first door body 20.
0 and the L-shaped vertical portion 240a is in the first position with the L-shaped horizontal portion 240b oriented in the direction of travel when the door is immersed.
The door 200 is screwed to the lower rear end.

The horizontal portion 240 of the first door L-shaped member 240
b, a first door auxiliary guide roller 2
42 is attached. A first door auxiliary guide rail 241 to be engaged with the first door auxiliary guide roller 242 is provided on the inner bottom portion of the door pocket 111. First door body 20
0 is supported by the first door guide roller 232 and the lower portion of the first door body 200 is supported by the first door auxiliary guide roller 242, so that the swing of the first door body 200 is suppressed. Has become.

A first door fixing member 223 is attached near both ends of the lower surface of the upper frame 221. Both ends of the first door ball screw 222 constituting the first driving mechanism 220 are fixed to the first door fixing member. 223 are rotatably supported.

The first door ball screw 222 is connected to the second opening 1
The base end on the 13th side is connected to a first door drive section 224 composed of an electric motor via a predetermined speed reduction mechanism. First
The door drive unit 224 is fixed to the first door fixing member 223. The connection base portion 212 of the first connection portion 210 includes
A first door moving section 225 including a nut member screwed to the first door ball screw 222 is fixed. The nut member of the first door moving unit 225 is not rotatable.

When the first door driving section 224 rotates the first door ball screw 222, the first door moving section 225 including the non-rotatably supported nut section moves the first door ball screw 2
22 to rotate relative to the first ball screw 22 for the first door.
Move horizontally along 2. Since the first door moving part 225 and the first connecting part 210 are fixed, the first door body 20
“0” is configured to move horizontally with the horizontal movement of the first door moving unit 225.

The first door ball screw 222 has a length (at least the opening / closing stroke distance of the first door 200) corresponding to at least a predetermined range in which the first door 200 is to be moved forward and backward. The first door moving unit 2 according to the movement of the door body 200
Numeral 25 is arranged at a position covering the range in which it moves forward and backward.

In the lower part of the door pocket 111 on the opposite side of the orbit with the first door body 200 and the second door body 300 interposed therebetween, at a height corresponding to the second connecting portion 310, almost the full width of the door pocket 111. A horizontally extending lower frame 321 is provided. A second door guide rail 331 for guiding the second door body 300 that opens and closes is attached to the lower surface of the lower frame 321. A guide roller 332 for the second door as a guided portion to be engaged with the guide rail 331 for the second door is attached to the connection base portion 312. Most of the load of the second door 300 is the second door guide roller 3.
32 and the lower frame 321 via the second door guide rail 331.

The upper end of the rear end of the second door 300 is provided with a second
A door L-shaped member 340 is attached. The L-shaped member 340 for the second door is formed by connecting the L-shaped horizontal portion 340b to the second door body 30.
0 and the L-shaped horizontal portion 340b faces the traveling direction when the door is immersed, and the L-shaped vertical portion 340a is in the second position.
The door 300 is screwed to the upper rear end. An auxiliary guide roller 342 for the second door is attached to the upper surface of the horizontal portion 340b of the L-shaped member 340 for the second door in an upward direction. The auxiliary guide roller 3 for the second door is provided on the upper inside of the door pocket 111.
The second door auxiliary guide rail 341 to be engaged with the second door 42
Is provided. By supporting the lower part of the second door body 300 with the guide roller 332 for the second door and supporting the upper part of the second door body 300 with the auxiliary guide roller 342 for the second door, the swing of the second door body 300 is reduced. It is being suppressed.

A second door fixing member 323 is attached to the upper surface of the lower frame 321 near both ends thereof.
Both ends of the second door ball screw 322 constituting the drive mechanism 320 are rotatably supported by the second door fixing member 323.

The second door ball screw 322 is connected to the first opening 1
The base end on the side of No. 12 is connected to a second door drive section 324 composed of an electric motor via a predetermined speed reduction mechanism. The second door drive section 324 is fixed to the second door fixing member 323. A second door moving portion 325 including a nut member screwed to the second door ball screw 322 is fixed to the connection base portion 312 of the second connection portion 310. The nut member of the second door moving section 325 is not rotatable.

When the second door drive unit 324 rotates the second door ball screw 322, the second door moving unit 325, which is non-rotatably supported, moves relative to the second door ball screw 322. And rotates horizontally along the ball screw 322 for the second door. Second door moving section 325 and second connecting section 310
Are fixed, so that the second door 300 moves horizontally with the horizontal movement of the second door moving section 325.

The second door ball screw 322 has a length corresponding to at least a predetermined range in which the second door 300 is to be moved forward and backward (a length equal to or longer than the opening / closing stroke distance of the second door 300). The second door moving section 325 is disposed at a position covering a range in which the second door moving section 325 moves forward and backward in accordance with the movement of the two door body 300.

The first drive mechanism 220 having the above-described configuration
The second drive mechanism 320 is disposed on the opposite side of the first door body 200 and the second door body 300 with the track.
Also, the first door drive unit 224 and the second door drive unit 324
Are controlled by a control panel (not shown) on which various electric components are mounted.

Next, the operation will be described. FIG. 8 shows the first door 2
00 schematically shows a state in which both 00 and the second door 300 have been moved to the stop position completely stored in the door pocket 111. In FIG. 8, the first drive mechanism 220, the second drive mechanism 320, the guide rail, and the like are omitted.

At the stop position, the portion of the connection base portion 212 of the first connection portion 210 is not on the same plane as the second door body 300 which is the opponent, and is on the side (front side of FIG....
Similarly, the portion of the connection base portion 312 of the second connection portion 310 is not on the same plane as the first door body 200 that is the opponent, and is on the side (front side of the drawing. Furthermore, the horizontal portion 340b of the second door L-shaped member 340 is located above the upper end of the first door 200, and the horizontal portion 240b of the first door L-shaped member 240 is Since they are further below the lower end, they do not collide with the other door.

Therefore, the rear end of the first door body 200 and the second
The first door body 200 and the first door body 200 are kept until just before the door body projection part 311 on the door body 300 side comes into contact or just before the rear end of the second door body 300 comes into contact with the door body projection part 211 on the first door body 200 side. Second
The door 300 can be brought closer. Moreover, since the first drive mechanism 220 and the second drive mechanism 320 are arranged on one of the front and back surfaces of the first door body 200 and the second door body 300, the first drive mechanism 220 and the second drive mechanism 320 are arranged. Mechanism 3
The thickness of the door pocket 111 can be reduced as compared with the case where the door pockets 20 are separately arranged on the front side and the rear side of the door body.

Further, since the first drive mechanism 220 and the second drive mechanism 320 are arranged on the opposite side of the track with respect to the first door body 200 and the second door body 300, that is, on the inner side of the platform, the installation of this apparatus and Maintenance and inspection work can be performed from the inside of the fence (the opposite side of the track), and work safety can be improved.

In addition, since the first connecting part 210 and the second connecting part 310 are projected from the rear ends of the first door body 200 and the second door body 300 in the direction in which the respective door bodies are immersed, Almost the entire length of each door body 200, 300 can be made to emerge from the door pocket 111 to close the opening frontage.
That is, since the portion remaining in the door pocket 111 when closed is small, the ratio of the total length of the door pocket 111 to the length of appearance of the door can be reduced.

In the embodiment described above, the portion of the connection base portion 212 of the first connection portion 210 and the second connection portion 310
Are located on a plane different from the first door body 200 and the second door body 300, but all of the first connection part 210 and the second connection part 310 are the first door body. You may make it the same plane as 200 and the 2nd door body 300.

In this case, since the positions of the first connecting portion 210 and the second connecting portion 310 in the vertical direction are shifted, they do not collide with each other. Therefore, when the first connecting portion 210 and the second connecting portion 310 are set to the same height, the minimum distance between the rear end of the first door 200 and the rear end of the second door 300 is equal to the first connecting portion 210. Although the length is equal to or longer than the total length of the second connecting portion 310, the first connecting portion 210 and the second connecting portion 310 are vertically displaced. The minimum distance can be reduced to one of the longer lengths.

The first connecting portion 210 and the second connecting portion 31
0 may be arranged on a different plane from the first door 200 and the second door 300. For example, the first door body 200
And the first connecting portion 21 from the side of the rear end of the second door body 300.
If the 0 or the second connecting portion 310 is made to protrude, the entire length of the protruding portion can be kept within the plane where the connecting base portion 212 and the connecting base portion 312 are located. Thereby, the first door body 20
The first door body 200 and the second door body 300 can be stored close to each other just before the rear end of the second door body 300 comes into contact with the rear end of the second door body 300, and the total length of the door pocket 111 can be further reduced. ,
The opening frontage can be enlarged.

Further, in the embodiment, the first drive mechanism 22
The zero and second drive mechanism 320 is constituted by a screw feed mechanism including a nut portion and a ball screw. For example, an endless belt provided over the moving distance of the door is circulated by the drive portion, and is moved to a predetermined position on the belt. It is good also as a structure which attaches a moving part and connects this moving part to the connection part of each door body.

In the embodiment, the upper frame 22
1. Guide rails 231 and 331 for supporting a load are provided on the upper or lower surface of the lower frame 321. Guide rollers 232 and 332 are engaged with the guide rails 231 and 331 from above and below. As shown, the guide rails 902, 9 beside the frames 901, 911
12 and guide rollers 903, 9
13 may be configured to engage from the side.

In the case shown in FIG. 9, guide rails 905 and 915 for preventing swing
1, 911 attached to the upper or lower surface. Thus, the height of the door pocket can be reduced, and the lower end of the door body can be made closer to the upper surface of the platform.

In addition to the above, in the embodiment, the door device according to the present invention is applied to a movable platform fence device which is erected along the side edge on the platform and separates the track side where the train passes from the platform side. However, as long as the door protrudes from both ends, it may be used for other purposes.

[0064]

According to the door device of the present invention, the projecting position of the first connecting portion from the rear end of the first door body and the projecting position of the second connecting portion from the rear end of the second door body are set to the first position. Since the movement trajectory of the first connection portion and the movement trajectory of the second connection portion formed when the door body and the second door body move forward and backward are set to be in the same plane and parallel, the first door No matter how close the body and the second door body are in the door pocket, the first connecting portion and the second connecting portion do not collide with each other.

Therefore, even when the first connecting portion, the second connecting portion, the first door body and the second door body are in the same plane,
The door bodies are brought close to each other until the front end of the first connection portion and the rear end of the second door body are in contact with each other or just before the front end of the second connection portion is in contact with the rear end of the first door body. And the ratio of the full length of the door pocket to the opening frontage can be reduced.

Further, the first connecting portion and the second connecting portion are
When the door body and the second door body are located on different planes, the door body is stored deep in the door pocket until immediately before the rear ends of the first and second door bodies come into contact with each other. The opening frontage can be further enlarged, and the ratio of the total length of the door pocket to the opening frontage can be reduced.

Further, since the first connecting portion, the first driving mechanism, the second connecting portion, and the second driving mechanism are arranged on one of the front and back surfaces of the door, they are made thinner. be able to.

Further, in the case where the present door device is applied to a movable platform fence device which is erected along the side edge on the platform and separates the track side where the train passes from the platform side, at least the first drive mechanism and the 2-drive mechanism is the first
By arranging the door body and the second door body on the side opposite to the track side, installation and maintenance work of the device can be performed from the inside of the fence, and work safety can be improved.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a schematic configuration inside a door pocket in a movable platform fence device to which a door device according to an embodiment of the present invention is applied.

FIG. 2 is a front view showing a state where a movable platform fence device to which the door device according to one embodiment of the present invention is applied is installed on a platform and the door is closed.

FIG. 3 is a front view showing a state where the movable platform fence device to which the door device according to the embodiment of the present invention is applied is installed on a platform and the door is opened.

FIG. 4 is a top view showing a state where a movable platform fence device to which the door device according to one embodiment of the present invention is applied is installed on a platform.

FIG. 5 is a side view showing a state where a movable platform fence device to which the door device according to one embodiment of the present invention is applied is installed on a platform.

FIG. 6 is a perspective view of a movable home fence device to which the door device according to one embodiment of the present invention is applied, showing a state of attachment of a double door device and a first connection portion and a second connection portion protruding from a rear end of a second door body. FIG.

FIG. 7 is an explanatory view showing a state where the inside of the door pocket of the movable platform fence device to which the door device according to the embodiment of the present invention is applied is viewed from the side.

FIG. 8 is an explanatory diagram showing a state inside a door pocket in a state where both doors are stored in a movable home fence device to which the door device according to one embodiment of the present invention is applied.

FIG. 9 is an explanatory view showing a side view of the inside of the door pocket of the door device configured to engage with the guide rail from the side.

FIG. 10 is a top view showing a conventionally used double door apparatus having a two-stage door.

FIG. 11 is a front view showing a state where the door of the door device shown in FIG. 10 is closed.

FIG. 12 is a front view showing a state where the door of the door device shown in FIG. 10 is opened.

FIG. 13 is a top view showing a conventionally used double door apparatus in which rear ends of the doors are overlapped in the thickness direction of the door pocket inside the door pocket.

FIG. 14 is a front view showing a conventionally used double door apparatus in which rear ends of the doors overlap each other in the thickness direction of the door pocket inside the door pocket.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Platform 100 ... Movable platform fence device 110 ... Double door device 111 ... Door bag 112 ... First opening 113 ... Second opening 120 ... Single door device 121 ... Door bag 122 ... Door 200 ... Double door device 200 ... First door body 210: first connecting portion 211: door body projecting portion 212: connecting base portion 220: first driving mechanism 221: upper frame 222: first door ball screw 223: first door fixing member 224: first door driving Part 225: First door moving part 231 ... First door guide rail 232 ... First door guide roller 240 ... First door L-shaped member 240a ... Vertical part 240b ... Horizontal part 241 ... First door auxiliary Guide rail 242: first door auxiliary guide roller 300: second door body 310: second connecting part 311: door body protruding part 312: connecting base part 320: second driving machine Structure 321 Lower frame 322 Second door ball screw 323 Second door fixing member 324 Second door driving unit 325 Second door moving unit 331 Second door guide rail 332 Second door Guide roller 340: L-shaped member for second door 340a: Vertical portion 340b: Horizontal portion 341: Auxiliary guide rail for second door 342: Auxiliary guide roller for second door

Continued on the front page (72) Inventor Iku Ohashi 2-29-1, Heian-cho, Tsurumi-ku, Yokohama-shi, Kanagawa F-term in Keisan Seisakusho (reference) 2E052 AA09 BA01 CA06 DA05 DB05 EA13 EB01 EC03 KA25

Claims (9)

[Claims] 1. A door device in which a door body enters and exits through first and second openings provided at both ends of a door pocket, wherein the first door body is supported so as to be able to advance and retreat on a predetermined straight line. A second door body which is protruded and retracted from the door pocket through the first opening, and a second door body which is supported so as to be able to advance and retreat on an extension of the movement trajectory of the first door body, and which is protruded and retracted from the door pocket through the second opening. A first drive mechanism for moving the first door body forward and backward, and a second driving mechanism for moving the second door body forward and backward.
A drive mechanism, wherein the first door protrudes from a part of a rear end portion on the traveling direction side when entering the door pocket toward the traveling direction side and is connected to the first driving mechanism. A second connecting member that has a first connecting portion, wherein the second door body projects from a part of a rear end portion, which is a moving direction side when entering the door pocket, toward the moving direction and is connected to the second driving mechanism; A first connecting portion protruding from the first door body and a second connecting portion protruding from the second door body.
The moving trajectory of the first connecting portion and the moving trajectory of the second connecting portion formed when the door body and the second door body move forward and backward are set to be in the same plane and parallel. And door device. 2. A door device in which a door body enters and exits from each of a first opening and a second opening provided at both ends of a door pocket, wherein the first door body is supported so as to advance and retreat on a predetermined straight line. A second door body which is protruded and retracted from the door pocket through the first opening, and a second door body which is supported so as to be able to advance and retreat on an extension of the movement trajectory of the first door body, and which is protruded and retracted from the door pocket through the second opening. A first drive mechanism for moving the first door body forward and backward, and a second driving mechanism for moving the second door body forward and backward.
A drive mechanism, wherein the first drive mechanism linearly moves the first fixed part fixed to the door pocket side, the first moving part, and the first moving part with respect to the first fixed part. It has a first moving mechanism for performing relative movement, and a first driving section for generating a driving force for the relative movement, wherein the second driving mechanism is a second fixing section fixed to the door pocket side. A second moving mechanism that linearly moves the second moving part relative to the second fixed part, and a second driving part that generates a driving force for the relative movement. The first door body projects in the traveling direction from a part of a rear end portion on the traveling direction side when entering the door pocket, and is connected to the first moving unit. A connecting portion, wherein the second door body advances from a part of a rear end portion which is on a side in a traveling direction when entering the door pocket; A second connecting portion protruding in a direction and being connected to the second moving portion; and a protruding position of the first connecting portion from the first door body and the second door body of the second connecting portion. From the first position.
The moving trajectory of the first connecting portion and the moving trajectory of the second connecting portion formed when the door body and the second door body move forward and backward are set to be in the same plane and parallel. And door device. 3. The first driving mechanism of the first driving mechanism,
A ball screw supported by the first fixing portion fixed to the side of the door pocket, the ball screw extending at least over a range in which the first connecting portion of the first door body is to be moved forward and backward; It consists of a threaded nut member,
One of the ball screw and the nut member is rotatably supported and the other is non-rotatably supported, and the first drive unit is configured to be rotatable among the nut member and the ball screw. The first moving unit is a member that moves together with the nut member, and the second moving mechanism of the second driving mechanism is the second moving mechanism fixed to a side of the door pocket. (2) a ball screw supported by the fixed portion, the ball screw extending at least over a range in which the second connecting portion of the second door body is to be moved forward and backward, and a nut member screwed to the ball screw; One of the ball screw and the nut member is rotatably supported and the other is non-rotatably supported, and the second drive unit is configured to be capable of rotating the nut member or the ball screw. The door device according to claim 1, wherein the second moving portion is a member that moves together with the nut member. 4. 4. A stop position of the first door body and the second door body when stored in the door pocket, wherein at the stop position, the tip of the first connecting portion is more than the tip of the second connecting portion. 4. The door device according to claim 1, wherein the door device is set at a position advanced to a rear end side of the two-door body. 5. 5. The apparatus according to claim 1, wherein said first connecting portion and said second connecting portion and said first door body and said second door body are in the same plane. The door device as described. 6. The apparatus according to claim 1, wherein said first connecting portion and said second connecting portion are located in a plane different from a plane in which said first door body and said second door body exist. 5. The door device according to 4. 7. The first door body is provided with the first door on one side.
7. The door device according to claim 1, wherein both a driving mechanism and the second driving mechanism are arranged. 8. A movable platform fence device standing upright along a side edge on a platform to separate a track side on which a train passes and a platform side. 8. The door device according to 5, 6, or 7. 9. The apparatus according to claim 8, wherein at least the first drive mechanism and the second drive mechanism are arranged on the side opposite to the track with respect to the first door body and the second door body. Door device.