JP6716736B1 - Platform door equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid obstruction of movement to a shelter space while coping with entry of vehicles having different stop positions and getting-on/off positions on a platform. A platform door device (1) corresponds to the entire length of a vehicle (2) stopped on a road surface (4) or an entrance/exit (21) in a platform (3) having a floor portion (31) arranged above a road surface (4) via a refuge space (S). The door 10 is provided at a position and is arranged along the edge 32 of the floor portion 31, a guide mechanism G1 for guiding the raising and lowering of the door 10 from at least both sides of the door 10 in the width direction, and the door 10. The door 10 includes a drive mechanism 300 that moves up and down between a predetermined closed state that projects upward from the upper surface 33 of the part 31 and a predetermined open state that is accommodated below the upper surface 33 of the floor 31. A driven portion 100 driven by the mechanism 300 and a shelter portion 200 that is arranged in a region displaced from the driven portion in the width direction and that opens the shelter space S to the vehicle 2 side in the open state are provided. [Selection diagram] Figure 2

Description

The present invention relates to a platform door device provided on a platform at a position corresponding to an entrance/exit of passenger transportation equipment such as a railway vehicle.

In recent years, in order to protect users such as passengers from the danger of falling from a platform in a railway station onto a railroad track or contacting a running railcar (hereinafter also simply referred to as "vehicle"), a platform door device has been installed. Widely used. As a platform door device, a full-screen type that completely covers the platform to the ceiling and a movable platform fence having a waist height or less are known. As the latter platform door device, a lateral opening type and a lifting type are known.

A sideways opening type platform door device usually includes one or two doors that are slidably opened and closed, and a door pocket portion that stores the doors. When this kind of side-opening door device is installed on the platform, it is not possible to get on and off at the position where the door pocket is installed. Therefore, this type of door device cannot be applied to a vehicle in which the entrance/exit is located at the installation position of the door pocket.

As an up-and-down type platform door device, there are known ones for raising and lowering elevators such as doors and ropes when getting on and off, and those for lowering the platform below when getting on and off. In the former case, a guide part for guiding the lifting and lowering of the lifting body is installed on the platform, and in the latter case, the guide part is installed below the platform. The latter configuration is disclosed in Patent Document 1, for example.

In any case, in the case of the lifting type, since it is not necessary to install a wide door pocket on the platform, it is possible to secure a wider boarding/alighting space as compared with the side opening type. Therefore, there is an advantage that it is easy to deal with various vehicles having different entrance/exit positions. In particular, when the guide portion is installed below the platform, there is an advantage that, when the door is opened, a thing that may obstruct passage cannot be arranged on the platform.

JP, 2009-51269, A

By the way, an evacuation space for emergencies is usually provided below the platform for railway vehicles so that people who have fallen on the track do not come into contact with the vehicles.

However, in the elevating type door device as in Patent Document 1, in the open state, the door having the same height as the platform is stored below the platform, which hinders the movement from the track to the shelter space. There is a problem that ends up.

Similar problems may occur when such platform door devices are installed on platforms used for getting on and off passenger transport equipment other than railways, such as monorails and ropeways.

Therefore, the present invention relates to a platform door device installed corresponding to an entrance/exit of a passenger transportation device such as a railroad vehicle, while moving to a shelter space while responding to entry of vehicles with different stop positions and entry/exit positions on the platform. The challenge is to avoid getting in the way.

In order to solve the above problems, the platform door device according to the present invention is configured as follows.

First, the invention according to claim 1
In a platform having a floor portion arranged above the road surface through a refuge space, a platform door device provided at a position corresponding to the full length of the passenger transportation equipment stopped on the road surface or the entrance/exit,
An elevating door arranged along the edge of the floor,
At least a pair of guide mechanisms that are arranged between the road surface and the upper surface of the floor section and that guide the up and down movement of the door from at least both widthwise sides of the door,
The door is raised and lowered between a closed state in which the door is raised to a predetermined closed position protruding upward from the upper surface of the floor and an open state in which the door is lowered to a predetermined open position accommodated below the upper surface of the floor. With a drive mechanism,
The door is provided with a driven portion driven by the drive mechanism and a region displaced in the width direction from the driven portion, and in the open state, the escape space is opened to the passenger transport device side. part and is provided,
The door is a driven door body that constitutes the driven portion,
An evacuation door body which is a separate body from the driven door body and which constitutes the evacuation portion;
Interlocking means for moving up and down the shelter door body in conjunction with the driven door body,
The evacuation door body includes an elevating frame portion that forms a skeleton of the evacuation door body, a curtain portion that extends downward from an upper edge portion of the elevating frame portion, and a lower end side of the curtain portion is folded in the open state. By this, it has an opening means for opening the lower part of the curtain,
The opening means has a fixing means for fixing one end of the curtain to the upper edge of the elevating frame and fixing the other end of the curtain to the floor or a predetermined position in the vicinity thereof. It is characterized by

The term "passenger transport equipment" as used herein means one formation when a plurality of vehicles are connected, such as a railroad vehicle.

The invention according to claim 2,
In a platform having a floor portion arranged above the road surface through a refuge space, a platform door device provided at a position corresponding to the full length of the passenger transportation equipment stopped on the road surface or the entrance/exit,
An elevating door arranged along the edge of the floor,
At least a pair of guide mechanisms that are arranged between the road surface and the upper surface of the floor section and that guide the up and down movement of the door from at least both widthwise sides of the door,
The door is raised and lowered between a closed state in which the door is raised to a predetermined closed position protruding upward from the upper surface of the floor and an open state in which the door is lowered to a predetermined open position accommodated below the upper surface of the floor. With a drive mechanism,
The door is provided with a driven portion driven by the drive mechanism and a region displaced in the width direction from the driven portion, and in the open state, the escape space is opened to the passenger transport device side. Part and
The door constitutes an upper end portion of the door in the closed state, and has a first door body arranged below the upper surface of the floor portion in the open state and a lower side of the first door body in the closed state. The second door bodies arranged side by side and arranged below the upper surface of the floor in the open state, and the first door body so that the ascending and descending speed of the second door body is slower than the ascending and descending speed of the first door body. An elevator interlocking mechanism for always raising and lowering the door body and the second door body in parallel at the same time,
The lower part of the first door body and the lower part of the second door body are each provided with a cutout for opening to the lower side.

The invention described in claim 3 is the same as the invention described in claim 2 ,
The door further includes a base portion that accommodates the first door body and the second door body in the open state,
The lifting interlocking mechanism is
A pair of rotating bodies which are arranged at intervals in the vertical direction and are rotatably attached to the second door body, respectively.
An endless winding body wound around the pair of rotating bodies,
The first door body is connected to one side of the winding body so that the circumferential movement of the winding body and the relative elevation of the first door body with respect to the second door body are interlocked with each other. A connecting part,
A second connecting portion for connecting the base portion to the other side portion of the winding body so that the circumferential movement of the winding body and the relative elevation of the second door body with respect to the base portion are interlocked with each other; It is characterized by having.

The one side part of the wound body here means one of the two linear parts of the wound body which are not in contact with the wound body, and the other side part of the wound body is the other side. Means the straight line part of.

Further, the invention according to claim 5 is the invention according to claim 1 or claim 4 ,
The door is characterized by having at least two drive door bodies and at least one shelter door body sandwiched between the two driven door bodies.

Further, the invention according to claim 6 is the invention according to any one of claims 1 to 5 ,
An assist mechanism for assisting the raising operation of the door by the drive mechanism is provided,
The assist mechanism includes an elastic body connected to the door so that the assist mechanism is deformed in association with the lowering of the door and an upward restoring force acts in association with the upward movement of the door. And

Further, the invention according to claim 7 is the invention according to any one of claims 1 to 5 ,
An assist mechanism for assisting the raising operation of the door by the drive mechanism is provided,
The assist mechanism is connected to the door so as to rise in conjunction with the lowering of the door and descend in conjunction with the rise of the door, and a weight that is lighter than the door, and a weight of the weight. A downward force generated by its own weight is inverted upward and transmitted to the door by its own weight.

Further, the invention described in claim 8 is the invention described in any one of claims 1 to 7 ,
The drive mechanism operates with the motor and the pair of zip chains, one end of which is connected to the upper portion of the door, are sequentially engaged with each other from the one end side to make the one end rise while being rigidified. Thus, the door is lowered to the open position by raising the door to the closed position, and lowering the one end while sequentially releasing the engagement of the pair of zip chains from the other end side. And a zip chain mechanism for performing a descending operation.

Further, the invention according to claim 9 is the invention according to any one of claims 1 to 8 ,
A lid portion that covers the door in the open position from above and closes at least a part of a gap portion formed between the door and the floor portion in the closed position from the anti-passenger transport device side;
The lid portion is released from the covered state by the raising operation of the door.

According to the first aspect of the present invention, since the door is of the elevating type, unlike the laterally opening type, it is not necessary to provide the door pocket portion on the platform. Further, since the pair of guide mechanisms for guiding the raising and lowering of the door are arranged between the road surface and the upper surface of the floor portion, there is nothing protruding onto the platform other than the closed door.

As a result, it is possible to increase the passage space on the platform, and even if the position of the entrance/exit of the passenger transport equipment is displaced from the door of the device according to the present invention, the guide mechanism or the like prevents the entrance/exit. Can be prevented. Further, since it is not necessary to provide the door pocket part on the side of the door, when the devices according to the present invention are installed side by side in the width direction of the door, it is easy to arrange adjacent doors close to each other. Therefore, the degree of freedom in layout of the platform door device is improved, and it is easy to install the platform door device at a position corresponding to various passenger transportation equipment having different boarding/alighting positions.

Further, since the retracting portion is provided in the widthwise area of the door that is displaced from the driven portion, even if the door in the open position is lowered below the floor, the retracting portion of the door passes through the floor lowering portion. The evacuation space can be opened to the passenger transport equipment side. Therefore, it is easy for a person who has fallen to the road surface to move to the shelter space through the shelter portion of the door.

Further, since the retracting portion of the door is provided in the widthwise region deviated from the driven portion, it is possible to simplify the structure while easily avoiding the interference with the driving mechanism in the retracting portion.

Further , the door is divided into a driving door body for raising and lowering the door and a shelter door body forming a shelter opening, and the shelter door body is driven by the interlocking means. It is designed to interlock with the raising and lowering of the door. Accordingly, since it is not necessary to provide a drive mechanism on the side of the shelter door body, it is easy to secure a large opening in the shelter door body. Therefore, a person who has fallen on the road surface can easily move to the refuge space.

Further , since one end of the curtain is fixed to the upper edge of the shelter door body and the other end is fixed to the floor of the platform or a predetermined position in the vicinity thereof, the shelter door body is raised. In the closed state, the curtain portion stretched from the floor portion or the vicinity thereof to the upper edge portion of the escape door body can prevent the fall. On the other hand, when the evacuation door body is in the lowered open state, the curtain part is folded so as to be folded back at the intermediate part, so that the evacuation opening is formed between the folded portion forming the lower edge of the curtain part and the road surface. Can be widely formed.

Further, by constructing the curtain portion with a lightweight material such as canvas, it is possible to reduce the weight of the escape door body. Therefore, in this case, it is possible to reduce the driving force for raising and lowering the shelter door body via the interlocking means, and thereby to reduce the size of the drive source such as the motor in the drive mechanism.

Moreover, the opening means, by the end of the curtain portion is fixed to the upper edge of the lifting frame unit, and fixes the other end portion of the curtain portion at a predetermined position of the floor in the vicinity, when the lift frame lowered, curtain portion The lower part of the curtain can be opened by folding the lower end side of the. As a result, in the open state, it is possible to secure an opening between the lower portion of the curtain and the road surface, which opens the escape space to the passenger transport device side.

According to the invention of claim 2,
Unlike the side-opening type, the door is liftable, so there is no need to provide a door pocket on the platform. Further, since the pair of guide mechanisms for guiding the raising and lowering of the door are arranged between the road surface and the upper surface of the floor portion, there is nothing protruding onto the platform other than the closed door.
As a result, it is possible to increase the passage space on the platform, and even if the position of the entrance/exit of the passenger transport equipment is displaced from the door of the device according to the present invention, the guide mechanism or the like prevents the entrance/exit. Can be prevented. Further, since it is not necessary to provide the door pocket part on the side of the door, when the devices according to the present invention are installed side by side in the width direction of the door, it is easy to arrange adjacent doors close to each other. Therefore, the degree of freedom in layout of the platform door device is improved, and it is easy to install the platform door device at a position corresponding to various passenger transportation equipment having different boarding/alighting positions.
Further, since the retracting portion is provided in the widthwise area of the door that is displaced from the driven portion, even if the door in the open position is lowered below the floor, the retracting portion of the door passes through the floor lowering portion. The evacuation space can be opened to the passenger transport equipment side. Therefore, it is easy for a person who has fallen to the road surface to move to the shelter space through the shelter portion of the door.
Further, since the retracting portion of the door is provided in the widthwise region deviated from the driven portion, it is possible to simplify the structure while easily avoiding the interference with the driving mechanism in the retracting portion.
Further, when the evacuation door body is lowered, the evacuation openings are formed by the cutouts in the lower portions of the first door body and the second door body, so that a passage from the road surface to the evacuation space can be secured. Further, when the evacuation door body is raised, the closed state can be realized by raising the second door body in conjunction with the first door body. Therefore, it is necessary to provide a dedicated drive mechanism for raising the second door body. There is no.

Since the first door body and the second door body are always lifted and lowered in parallel, unlike the case where the lifting and lowering of one door body is started or finished while the other door body is being lifted or lowered, Such a load can be kept constant. Furthermore, since the first door body and the second door body are always moved up and down in parallel, compared to the case where the up and down movement of one door body is started after the up and down movement of the other door body is started. The lifting and lowering of the first door body and the second door body can be completed in a short time.

Further, according to the invention described in claim 3, at the time of rise of the first door member, a first connection part connected to the first door member is raised on one side together with the wound body, thereby, The wound body moves in the circumferential direction. Along with this, the second connecting portion on the other side of the winding body descends relative to the second door body, but the second connecting portion is fixed to the road surface via the base portion. , The second door body rises. At this time, since the first door body rises with respect to the second door body, the rising speed of the first door body is higher than the rising speed of the second door body.

Therefore, in the closing operation, it is possible to raise the first door body to a position above the second door body while simultaneously raising the first door body and the second door body in parallel. Similarly, in the opening operation, the lowering speed of the first door body is higher than the processing speed of the second door body. Therefore, the first door body and the second door body can be simultaneously lowered in parallel, and both the first door body and the second door body, which were located at different heights at the time of starting the descent, can be accommodated below the upper surface of the floor. ..
Further, the door is divided into a driving door body for raising and lowering the door and a shelter door body forming a shelter opening, and the shelter door body is driven by the interlocking means. It is designed to interlock with the raising and lowering of the door. Accordingly, since it is not necessary to provide a drive mechanism on the side of the shelter door body, it is easy to secure a large opening in the shelter door body. Therefore, a person who has fallen on the road surface can easily move to the refuge space.

Further, according to the invention of claim 5 , the evacuation door body having no drive mechanism is supported from both sides in the width direction by the drive door body having the drive mechanism, so that the evacuation door body is moved up and down. It can be done smoothly.

According to the sixth aspect of the invention, when the door is raised, the restoring force of the elastic body acts upward on the door, so that the drive mechanism assists the raising operation of the door. Therefore, the power source can be downsized, which increases the layout flexibility of the drive mechanism.

Further, according to the invention described in claim 7 , since the operation of raising the door by the drive mechanism is assisted by utilizing the weight of the weight, the drive source can be downsized, and thus the drive mechanism can be downsized. Layout flexibility is increased.

Further, according to the invention described in claim 8 , when the door is raised toward the closed position and when the door is raised to the closed position, the door can be supported by the rigidized zip chain. Further, when the door is descending toward the open position and when it is descending to the open position, the disengaged zip chain can be accommodated compactly in the up-down direction while being arbitrarily bent or rolled. Therefore, the layout flexibility of the drive mechanism can be improved.

Further, according to the invention described in claim 9 , since the lid portion that covers the door in the open position from above is provided, it functions as a step of closing the space between the platform and the vehicle entrance/exit when boarding/alighting. It is possible to protect the door stored in the open position. Further, since the lid portion closes at least a part of the gap formed between the opening forming portion of the door and the upper surface of the floor in the closed position from the side of the anti-passenger transport equipment, the lid passes from the platform to the road surface. It is possible to prevent the fall of passengers or articles.
Since the lid portion is pushed up by the raising operation of the door and released from the covered state, it is not necessary to separately provide a drive mechanism for opening the lid portion.

It is a side view which shows the closed state of the platform door apparatus which concerns on embodiment of this invention, and (b) open state. It is a front view of the platform door device in a closed state. It is a front view of the driven door unit in a closed state. It is the AA sectional view of FIG. 3 which looked at a part of driven door unit from the up-down direction. It is a line B arrow line view of FIG. 3 which shows the side surface of the driven door unit of a closed state. It is CC sectional drawing of FIG. 3 which looked at the closed door unit for a drive from the side. It is the front view seen from the vehicle side of the shelter door unit in a closed state. It is the rear view seen from the platform side of the shelter door unit in a closed state. It is a D line arrow view of FIG. 7 which shows the side surface of the retracting door unit of a closed state. It is a front view of the platform door device in an open state. It is a front view of the driven door unit in an open state. FIG. 12 is a cross-sectional view taken along the line EE of FIG. 11 in which the driven door unit in the open state is viewed from the width direction. It is a front view of the shelter door unit in an open state. FIG. 14 is a view from the F line arrow of FIG. 13 showing the side surface of the retractable door unit in the open state. It is a front view which shows the closed state of the shelter door unit which concerns on a modification. FIG. 16 is a cross-sectional view taken along the line GG in FIG. 15 of the retractable door unit shown in FIG. FIG. 16 is a cross-sectional view taken along line HH of FIG. 15 in which the retracting door body in the closed position and its peripheral portion in the retracting door unit shown in FIG. 15 are viewed from the width direction. FIG. 18 is a cross-sectional view similar to FIG. 17 in which the retractable door body in the open position and its peripheral portion in the retractable door unit shown in FIG. 15 are viewed from the width direction. It is a front view of the platform door device of a closed state in a 2nd embodiment. It is a front view of a driven door unit in a closed state in a 2nd embodiment. FIG. 21 is a cross-sectional view taken along the line I-I of FIG. 20, showing a part of the driven door unit in the closed state in the second embodiment as seen from above and below. It is a J line arrow view of FIG. 20 which shows the side surface of the driven door unit in a closed state in 2nd Embodiment. FIG. 21 is a sectional view of the driven door unit in the closed state according to the second embodiment as seen from the side, taken along line KK in FIG. 20. It is a front view of the platform door device of an open state in a 2nd embodiment. It is a front view of the driven door unit in an open state in the second embodiment. It is a front view of the escape door unit of an open state in a 2nd embodiment. It is explanatory drawing explaining the operation|movement of the raising/lowering interlocking mechanism from (a) open state to (b) closed state in 2nd Embodiment. It is a front view which shows the assist mechanism of the driven door unit which concerns on a 1st modification. It is a front view which shows the assist mechanism of the driven door unit which concerns on a 2nd modification. It is a front view which shows the assist mechanism of the driven door unit which concerns on a 3rd modification.

Hereinafter, details of the platform door device according to the embodiment of the present invention will be described.

1A and 1B are side views showing a platform door device 1 according to the present embodiment. The platform door apparatus 1 includes an elevating door 10 that is moved up and down between a closed position P1 shown in FIG. 1A and an open position P2 shown in FIG. 1B.

The platform door device 1 according to the present embodiment is provided at a position corresponding to an entrance/exit 21 of a railway vehicle 2 (hereinafter, also simply referred to as “vehicle 2 ”), and an edge portion of a floor portion 31 of the platform 3. 32 are arranged in parallel. Below the floor portion 31 of the platform 3, a shunt space S opened to the vehicle 2 side is provided. As a result, passengers who have fallen onto the rail laying surface 4 as a road surface can be saved in the save space S.

As shown in FIG. 1A, when the door 10 is closed, the door 10 located at the closed position P1 is in a state of protruding to a predetermined height above the upper surface 33 of the floor portion 31. On the other hand, as shown in FIG. 1B, when the door 10 is open, the door 10 located in the open position P2 is stored below the upper surface 33 of the floor 31.

FIG. 2 is a front view of the platform door apparatus 1 in the closed state in which the door 10 is located at the closed position P1.

As shown in FIGS. 1 and 2, the width direction of the platform door device 1 and the door 10 (left-right direction), the front-back direction of the vehicle 2 (traveling direction, line-in direction), and the length direction of the platform 3 are substantially the same. In a parallel relationship, these directions are indicated by the symbol X in each of FIGS. 1 to 20. The thickness direction (depth direction) of the platform door device 1 and the door 10, the width direction of the vehicle 2 (left-right direction), and the width direction of the platform 3 (short direction) are substantially parallel to each other. The direction is indicated by the symbol Y in each drawing. The height directions of the platform door device 1, the door 10, the vehicle 2, and the platform 3 are substantially parallel to the vertical direction (vertical direction), and these directions are indicated by reference numeral Z in each drawing.

As shown in FIG. 2, the platform door apparatus 1 includes a pair of driven door units 100, 100 and a retracting door unit 200 arranged between the driven door units 100, 100 in the width direction X. , And a drive mechanism 300 that drives each of the driven door units 100, 100.

As shown in the front view of FIG. 3, each driven door unit 100 includes a driven door body 120, a base frame 110 that supports the driven door body 120, and a lifted door body 120. The driving mechanism 300 for driving the driven door body 120 and the guide mechanism G1 for guiding the lifting and lowering of the driven door body 120 are provided.

As shown in the front view of FIG. 3 and the side view of FIG. 5, the base frame 110 includes a pair of vertical frames 111 and 111 extending in the vertical direction Z and a first frame extending in the width direction X and connecting the pair of vertical frames. , Second and third horizontal frames 112, 113, 114.

As shown in the cross-sectional view of FIG. 4, each of the vertical frames 111, 111 has, for example, a U-shaped cross section that is open to the inside in the width direction X. As shown in FIGS. 3 and 5, the first horizontal frame 112 has, for example, an L-shaped cross section, and is joined to a side wall portion on the vehicle 2 side at the upper ends of the vertical frames 111, 111. The second horizontal frame 113 has, for example, an L-shaped cross section, and is joined to a side wall portion of the upper ends of the vertical frames 111, 111 on the side opposite to the vehicle 2 (hereinafter, also referred to as “platform 3 side”). The third horizontal frame 114 has, for example, a U-shaped cross section that is open to the vertical Z side, and is joined to the lower ends of the vertical frames 111, 111.

As shown in FIG. 3, a support member 115 for supporting the drive mechanism 300 is attached to an intermediate portion of the third horizontal frame 114 of the base frame 110 in the width direction X. The support member 115 is, for example, a columnar member that extends vertically, and is fixed to the third horizontal frame 114 with a bolt or the like (not shown).

As shown in FIGS. 3 to 5, on the inner side surface of the side wall portion of the vertical frame 111 of the base frame 110 on the vehicle 2 side, a first rail unit 116 that constitutes a part of the guide mechanism G1 and extends in the vertical direction Z is formed. It is installed.

The first rail unit 116 includes a base portion 116a fixed to the vertical frames 111, 111 by, for example, bolts (not shown) or welding, and a pair of rail portions 116b, 116b fixed to the base portion 116a. There is. The base portion 116a is a long member that extends in the vertical direction Z, and has, for example, a U-shaped cross section that is open to the platform 3 side. Each rail portion 116b is, for example, a round bar-shaped member extending in the vertical direction Z, and is fixed to the inner side surface of the base portion 116a in the width direction X by, for example, welding.

As shown in FIG. 5, a stopper 117 is provided in the middle of each vertical frame 111 of the base frame 110 to regulate the rise of the driven door body 120. The stopper 117 is provided, for example, so as to project inward in the thickness direction Y from the side wall portion of the vertical frame 111 on the platform 3 side. As the stopper 117, for example, a cylindrical metal washer having a screw hole inside is used. In this case, the washer is fixed to the vertical frame 111 with, for example, bolts.

A plate-shaped lid portion 118 that covers the base frame 110 is provided above the first horizontal frame 112 and the second horizontal frame 113 of the base frame 110. The lid portion 118 is a rectangular plate member that is long in the width direction X of the door 10. One end in the lateral direction of the lid part 118 is a fixed part 118a fixed to the base frame 110, and the other end in the lateral direction is a free end 118c. The fixed portion 118 a of the lid portion 118 is fixed to the upper surface of the second horizontal frame 113. A hinge portion 118b is provided on the edge of the fixed portion 118a on the free end 118c side. The free end 118c of the lid portion 118 can be placed on the upper surface of the first horizontal frame 112.

As shown in FIG. 5, when the driven door body 120 is lifted, the lid portion 118 rotates around the hinge portion 118b so that the free end 118c side thereof is lifted by the driven door body 120. At the open position P2 shown in FIG. 1B, the lid portion 118 covers the driven door body 120 from the upper side. Therefore, a drive device for opening the lid part 118 is not required.

As shown in FIGS. 3, 5 and 6, the driven door body 120 includes an elevating frame 121 that constitutes the skeleton thereof, and a panel member 126 attached to the elevating frame 121.

The elevating frame 121 includes a pair of vertical frames 122, 122 extending in the vertical direction Z, a head tree member 123 extending in the width direction X and connecting the pair of vertical frames 122, 122, and first and second horizontal frames 124, 125. Is equipped with.

In the elevating frame 121, each vertical frame 122 has, for example, a U-shaped cross section that opens toward the vehicle 2 (see FIG. 4 ). The board member 123 has, for example, a substantially triangular cross section, and is joined to the upper ends of the vertical frames 122, 122 at both ends thereof. Both ends of the first horizontal frame 124 are joined to an intermediate portion of the vertical frame 122 in the vertical direction Z, and both ends of the second horizontal frame 125 are joined to a lower end portion of the vertical frame 122. In the elevating frame 121, the side faces of the first and second horizontal frames 124 and 125 on the platform 3 side and the side faces of the vertical frame 122 on the platform side are aligned in the thickness direction Y.

The panel member 126 is, for example, a plate material made of transparent glass. However, the material and color of the panel member 126 are not particularly limited, and for example, an acrylic plate may be used as the panel member 126. Both ends of the panel member 126 in the width direction X are joined to the vertical frames 122, 122 of the elevating frame 121. The upper end portion of the panel member 126 is joined to the headstock member 123, and the lower end portion of the panel member 126 is joined to the second horizontal frame 125. As a result, the rectangular opening formed between the pair of vertical frames 122, 122, the head member 123, and the second horizontal frame 125 is closed by the panel member 126 from the platform 3 side.

The vertical Z intermediate portion of the panel member 126 may be joined to the first horizontal frame 124. Further, the panel member 126 does not necessarily have to be composed of one plate member, and may be composed of a plate member divided into a plurality of plates.

As shown in FIGS. 4 and 5, a second rail unit 127 that constitutes a part of the guide mechanism G1 is attached to each vertical frame 122 of the driven door body 120.

The second rail unit 127 includes, for example, a pair of rail portions 127a and 127a. Each rail portion 127a is formed of, for example, a round bar member, and is provided so as to extend in the up-down direction Z along both inner side surfaces of the vertical frame 122 in the width direction X. The rail portion 127a is fixed to the inner side surface of the vertical frame 122 in the width direction X, for example, via a plate-shaped base portion 127b extending in the vertical direction Z. The base portion 127b is fixed to the vertical frame 122 by, for example, bolts or welding (not shown), and the rail portion 127a is fixed to the base portion 127b by welding, for example.

A plate member 128 that engages with a later-described guide unit 130 is joined to the lower end of each vertical frame 122 of the driven door body 120. The plate member 128 is arranged so as to be orthogonal to the vertical direction Z and constitutes the lower end surface of the driven door body 120. As shown in FIG. 4, the plate member 128 is formed in a U shape along the wall portion of the vertical frame 122 when viewed in the vertical direction Z. The plate member 128 is formed so as to project inward from the wall portion of the vertical frame 122.

As shown in FIG. 3, the guide mechanism G1 includes a pair of guide units 130, 130. Each guide unit 130 is engaged with the vertical frame 111 of the base frame 110 and the vertical frame 122 of the driven door body 120.

The guide unit 130 includes a guide frame 131 extending in the vertical direction Z, and first to eighth pulleys 133a to 133h rotatably supported by the guide frame 131.

The guide frame 131 is engaged at its lower end side with the vertical frame 111 of the base frame 110, and is engaged at the upper end side with the vertical frame 122 of the driven door body 120. Accordingly, the vertical frame 111 of the base frame 110 and the vertical frame 122 of the driven door body 120 are connected via the guide frame 131.

The dimension of the driven door body 120 in the thickness direction Y is shorter than the dimension of the base frame 110 in the thickness direction Y, and the dimension of the driven door body 120 in the width direction X is the width direction X of the base frame 110. Has been made shorter than the dimensions of. The dimension of the guide unit 130 in the thickness direction Y is shorter than the dimension of the driven door body 120 in the thickness direction Y, and the dimension of the guide unit 130 in the width direction X is the width direction X of the driven door body 120. Has been made shorter than the dimensions of.

Therefore, at the open position P2, the guide unit 130 is housed inside the driven door body 120, and the guide unit 130 and the driven door body 120 are housed inside the base frame 110. ..

As shown in FIG. 4, the guide frame 131 has, for example, a square cross section. The size of the cross section viewed from the vertical direction Z is larger in the order of the vertical frame 111 of the base frame 110, the vertical frame 122 of the driven door body 120, and the guide frame 131. In the open state P2 of the door 10, the vertical frame 122 of the driven door body 120 is accommodated inside the vertical frame 111 of the base frame 110, and the guide frame is accommodated inside the vertical frame 122 of the driven door body 120. It has become so. The plate member 128 of the driven door body 120 is formed in a U shape so as to surround the guide frame 131, so that interference between the plate member 128 and the guide frame 131 is avoided. ..

Plate members 134 and 135 are arranged at the upper and lower ends of the guide frame 131 so as to close the openings. The plate members 134 and 135 are formed along the opening of the guide frame 131, and are fixed to the guide frame 131 by, for example, bolts (not shown). As shown in FIGS. 4 and 5, the plate member 135 on the lower end side is provided with an extending portion 136 that extends toward the platform 3 side with respect to the guide frame 131 in the thickness direction Y.

A stopper 137 is provided at an intermediate portion of the guide frame 131 in the up-down direction Z to restrict the relative movement of the driven door body 120 upward with respect to the guide frame 131 more than a predetermined amount. When the driven door body 120 is raised, the plate member 128 is engaged with the stopper 137 of the guide frame 131 to raise the guide frame 131 in conjunction with the rise of the driven door body 120. Is possible.

The stopper 137 is provided so as to project from the guide frame 131 to the outside in the width direction X, for example. As the stopper 137, for example, a tubular metal washer having a screw hole inside is used. In this case, the washer is fixed to the guide frame 131 with, for example, a bolt.

As shown in FIGS. 3 and 4, the first to fourth pulleys 133a to 133d of the guide unit 130 are disposed on the side surface of the guide frame 131 on the platform 3 side, and the fifth to eighth pulleys 133e to 133h are the guides. It is arranged on the side surface of the frame 131 on the vehicle 2 side. The pulleys 133a to 133h are fixed to the guide frame 131 with, for example, bolts.

The first to fourth pulleys 133a to 133d are arranged above the center of the guide frame 131 in the vertical direction Z.

The first pulley 133a is arranged at the upper end of the guide frame 131 at a position offset inward from the center of the guide frame 131 in the width direction X of the door 10. The second pulley 133b is arranged below the first pulley 133a in the vertical direction Z and at a position offset outward from the center of the guide frame 131 in the door width direction X. In the width direction X, the groove portion of the first pulley 133a is arranged so as to protrude inside the guide frame 131, and the groove portion of the second pulley 133b is arranged so as to protrude outside the guide frame 131. ..

The third pulley 133c is arranged in the middle portion of the guide frame 131 at a position offset inward from the center of the guide frame 131 in the width direction X of the door 10. The fourth pulley 133d is arranged above the third pulley 133c in the vertical direction Z and at a position offset outward from the center of the guide frame 131 in the width direction X of the door 10. In the width direction X, the groove portion of the third pulley 133c is arranged so as to protrude inside the guide frame 131, and the groove portion of the fourth pulley 133d is arranged so as to protrude outside the guide frame 131. ..

As shown in FIG. 3, the lowermost third pulley 133c among the first to fourth pulleys 133a to 133d is located above the lower end of the vertical frame 122 of the driven door body 120 at the closed position P1. It is arranged to be located in.

The fifth pulley 133e is arranged in the middle portion of the guide frame 131 at a position offset inward from the center of the guide frame 131 in the width direction X of the door 10. The sixth pulley 133f is arranged below the fifth pulley 133e in the vertical direction Z and at a position offset outward from the center of the guide frame 131 in the width direction X of the door 10. In the width direction X, the groove portion of the fifth pulley 133e is arranged so as to protrude inside the guide frame 131, and the groove portion of the sixth pulley 133f is arranged so as to protrude outside the guide frame 131. ..

As shown in FIG. 3, the fifth uppermost pulley 133e of the fifth to eighth pulleys 133e to 133h is positioned below the upper end of the vertical frame 111 of the base frame 110 at the closed position P1. It is located in.

The seventh pulley 133g is arranged at the lower end of the guide frame 131 at a position offset inward from the center of the guide frame 131 in the width direction X of the door 10. The eighth pulley 133h is arranged above the seventh pulley 133g in the vertical direction Z and at a position offset outward from the center of the guide frame 131 in the width direction X of the door 10. In the width direction X, the groove portion of the seventh pulley 133g is arranged so as to protrude inside the guide frame 131, and the groove portion of the eighth pulley 133h is arranged so as to protrude outside the guide frame 131.

Further, in the width direction X, the center positions of the first, third, fifth and seventh pulleys 133a, 133c, 133e, 133g substantially coincide with each other, and the second, fourth, sixth, eighth pulleys 133b, 133d, 133f, The center positions of 133h substantially coincide with each other. The first, third, fifth and seventh pulleys 133a, 133c, 133e, 133g and the second, fourth, sixth and eighth pulleys 133b, 133d, 133f, 133h overlap each other in the width direction X, and Thus, the dimension of the guide frame 131 in the width direction X is shortened.

As shown in FIGS. 3 and 4, the first to fourth pulleys 133a to 133d of the guide unit 130 are rollably engaged with the second rail units 127 and 127 of the driven door body 120. Specifically, the groove portions of the first to fourth pulleys 133a to 133d are fitted into the rail portions 127a and 127a of the second rail unit 127. As a result, the relative movement of the driven door body 120 with respect to the guide unit 130 in the vertical direction Z is guided.

Further, the plate member 128 at the lower end of the driven door body 120 and the stopper 137 of the guide unit 130 are arranged so as to overlap each other in the width direction X in a plan view. When the relative height of the driven door body 120 to the guide unit 130 is a predetermined position in the vertical direction Z, the plate member 128 of the driven door body 120 is attached to the stopper 137 of the guide unit 130 by the driven door body. It is adapted to engage with 120 from below. As a result, when the plate member 128 of the driven door body 120 is engaged with the stopper 137 of the guide unit 130 while the driven door body 120 is being raised, the guide unit 130 is raised together with the driven door body 120. It is supposed to do.

On the other hand, the fifth to eighth pulleys 133e to 133h of the guide unit 130 are rollably engaged with the first rail unit 116 of the base frame 110. Specifically, the groove portions of the fifth to eighth pulleys 133e to 133h are fitted into the rail portion 116b of the first rail unit 116. As a result, relative movement of the guide unit 130 in the vertical direction Z with respect to the base frame 110 is guided.

Further, the extending portion 136 at the lower end of the guide unit 130 and the stopper 117 of the base frame 110 are arranged so as to overlap each other in a plan view. When the relative height of the guide unit 130 with respect to the base frame 110 is at a predetermined position in the vertical direction Z, the extending portion 136 at the lower end of the guide unit 130 engages with the stopper 117 of the base frame 110 from below. It is supposed to do. As a result, the excessive rise of the guide unit 130, and by extension, the excessive rise of the driven door body 120 is restricted.

As shown in FIG. 11, the drive mechanism 300 is arranged in the width direction X at an intermediate portion between the pair of vertical frames 111 of the base frame 110. In the present embodiment, the drive mechanism 300 is composed of a zip chain mechanism.

The drive mechanism 300 includes a pair of zip chains 301, 301 provided so as to be capable of meshing with each other, a storage section 302 for storing the zip chains 301, 301, and, for example, a sprocket 303 engaged with one of the zip chains 301, 301. And a motor 310 as a driving source for supplying driving force to the sprocket 303.

The sprocket 303 is drivingly connected to the motor 310 via, for example, a winding transmission mechanism 320. The winding transmission mechanism 320 includes, for example, a drive sprocket 321 that is rotationally driven by a motor 310, and a driven sprocket 323 that is engaged with the drive sprocket 321 via a chain 322. However, the winding transmission mechanism 320 may be configured by a pair of pulleys and a belt instead of the pair of sprockets and the chain.

The storage section 302 is fixed to the support member 115 of the base frame 110 by, for example, bolts (not shown). Further, the motor 310 is fixed to the support member 115 via, for example, the bracket 115a. As a result, the drive mechanism 300 is supported by the base frame 110 via the support member 115. The storage section 302 has a shape that is longer in the width direction X than in the vertical direction Z, and thus is compact in the vertical direction Z.

The storage unit 302 has a shape that is shorter in the thickness direction Y than in the vertical direction Z, and the storage unit 302 as a whole is arranged to overlap the vertical frame 111 of the base frame 110 when viewed in the width direction X. (See FIG. 6).

As shown in FIG. 11, the storage portion 302 is provided with a pair of zip chain storage grooves 304, 304 extending from the central portion of the storage portion 302 in the width direction X to the outside in the width direction X, respectively. A tip portion (not shown) of each zip chain storage groove 304 is provided so as to extend while curving in a spiral shape when viewed in the thickness direction Y of the door 10.

In addition, a zip chain guide groove 305 is provided at the center of the storage portion 302 in the width direction X and extends downward from the upper end of the storage portion 302 in the vertical direction Z. The lower end of the zip chain guide groove 305 communicates with each end of the pair of zip chain storage grooves 304, 304.

Each zip chain 301 is connected to the driven door body 120 at one end side and is accommodated in the accommodation section 302 at the other end side. The pair of zip chains 301, 301 are always partially meshed with each other on one end side thereof. As will be described later, the meshing amount of the pair of zip chains 301, 301 is increased or decreased according to the rotation of the sprocket 303. As is well known, the pair of zip chains 301, 301 form a rigid body in a rigidized state at the meshing portion.

The meshing portion of the pair of zip chains 301, 301 is arranged so as to extend downward in the vertical direction Z from the connecting member 301a with the driven door body 120. The lower end side portion of the meshing portion of the pair of zip chains 301, 301 is arranged in the zip chain guide groove 305. As a result, the movement of the meshing portions of the pair of zip chains 301, 301 in the vertical direction Z is guided by the zip chain guide groove 305.

The pair of zip chains 301, 301, has non-meshing portions branched so as to extend from the lower end portion of the meshing portions to both sides in the width direction X. The non-meshing portion of each zip chain 301 is housed in the zip chain housing groove 304. As a result, the zip chain 301 is accommodated in a spiral shape while spreading in the width direction X in the non-meshing portion, so that the entire zip chain 301 can be compactly accommodated in the up-down direction Z in the accommodating portion 302. Has become.

When the motor 310 is driven, the rotation of the motor 310 is transmitted to the sprocket 303 via the winding transmission mechanism 320. As a result, when the sprocket 303 is rotationally driven by the motor 310, the zip chain 301 engaged with the sprocket 303 is pulled out from the zip chain housing groove 304 toward the zip chain guide groove 305 or in the opposite direction. Get drunk. When one of the zip chains 301 is driven in the pull-out direction by the rotation of the sprocket 303, the other zip chain 301 is also moved in the pull-out direction in conjunction with this, and pulled out from the pair of zip chain storage grooves 304, 304. The parts are engaged with each other at the lower end of the zip chain guide groove 305. At this time, the upper end position of the meshing portion of the pair of zip chains 301, 301 is raised while increasing the meshing amount.

On the contrary, when one zip chain 301 is driven by the rotation of the sprocket 303 in the direction to be pulled in from the zip chain guide groove 305 toward the zip chain housing groove 304, the other zip chain 301 is also pulled in in conjunction with this. Move in the direction. At this time, the meshing portions of the pair of zip chains 301, 301 are lowered in their upper end positions while reducing the meshing amount by disengaging the lower end portions thereof.

The upper ends of the pair of zip chains 301, 301 are fixed to the upper part of the driven door body 120 via, for example, a plate-shaped connecting member 301a. The connection member 301a is fastened to the lower surface of the head member 123 of the driven door body 120 with, for example, a bolt. As a result, the driven door body 120 is moved up and down in association with the up and down movement of the upper ends of the zip chains 301, 301. With the above configuration, the driven door body 120 can be moved up and down while being guided by the guide mechanism G1 according to the rotation of the motor 310.

As shown in FIG. 7, the shelter door unit 200 includes a shelter door body 210 that forms a part of the door 10, a base frame 110 that supports the shelter door body 210, and an elevating and lowering of the shelter door body 210. And a guide mechanism G1 for guiding the. Since the configurations of the base frame 110 and the guide mechanism G1 are the same as those of the driven door unit 100, description thereof will be omitted.

As shown in FIGS. 7 to 9, the shelter door body 210 includes an elevating frame 211 that constitutes the skeleton thereof, and a screen member 220 that is supported by the elevating frame 211 and serves as a curtain.

The elevating frame 211 includes a pair of vertical frames 212, 212 extending in the vertical direction Z, and a head member 213 and a horizontal frame 214 extending in the width direction X and connecting the pair of vertical frames 212, 212.

Each of the vertical frames 212 has, for example, a U-shaped cross section that opens toward the vehicle 2 (see FIG. 4 ). The head member 213 has, for example, a substantially triangular cross section, and is joined to the upper ends of the vertical frames 212 at both ends thereof.

The horizontal frame 214 has, for example, a rectangular cross section, and is joined to a portion above the center of the vertical frame 212 in the vertical direction Z. The side surface of the escape door body 210 on the platform 3 side of the horizontal frame 214 and the side surface of the vertical frame 212 on the platform 3 side have the same position in the thickness direction Y.

The screen member 220 is a cloth member made of, for example, canvas. However, the material of the screen member 220 is not particularly limited, and a sheet-shaped member other than cloth may be used as the screen member 220. The screen member 220 has a rectangular shape, and one of the long side and the short side of the screen member 220 is arranged parallel to the width direction X, and the other of the long side and the short side of the screen member 220 is the vertical direction Z. Are arranged in parallel with.

The screen member 220 is attached to the elevating frame 211 so as to extend downward from the upper edge of the elevating frame 211. An upper edge portion of the screen member 220 is fixed to a head member 213 that constitutes an upper edge portion of the elevating frame 211 by an upper fixing means such as a bolt 215. A folded-back portion 221 is formed on the lower end side of the screen member 220, and a tip portion of the screen member 220 beyond the folded-back portion 221 is fixed to the second horizontal frame 113 of the base frame 110 by a lower fixing means such as a bolt 216. It is fixed.

When viewed in the width direction X, the screen member 220 is arranged along the edge of the elevating frame 211 on the platform 3 side in the thickness direction Y. When viewed in the thickness direction Y, both ends in the width direction X of the screen member 220 are arranged so as to overlap the vertical frames 212, 212 of the elevating frame 211. As a result, the opening formed between the pair of vertical frames 212, 212 and the head member 213 of the elevating frame 211 and the second horizontal frame 113 of the base frame 110 is closed by the screen member 220 from the platform 3 side. ing.

The screen member 220 may be fixed or joined to the horizontal frame 214 of the elevating frame 211 and the height of the vertical frames 212, 212 which is equal to or higher than the horizontal frame 214.

At the lower end of the screen member 220, a folded-back portion 221 that is folded back toward the platform 3 side in the thickness direction Y is formed. In the retracting door body 210 at the closed position P1, the folded-back portion 221 is arranged below the upper surface 33 of the floor portion 31 of the platform 3 in the vertical direction Z, and in the thickness direction Y, the second horizontal frame of the base frame 110. It is arranged on the vehicle 2 side with respect to 113.

A bar member 222 for removing the slack of the screen member 220 is arranged at the folded-back portion 221 of the screen member 220. The bar member 222 has a shaft 223 extending in the width direction X, and collar portions 224 and 224 provided at both ends of the shaft 223. In the width direction X, the bar member 222 is longer than the screen member 220, and the pair of collar portions 224 and 224 are arranged outside the screen member 220 in the width direction X. The shaft 223 is a cylindrical or round bar-shaped member, and the screen member 220 is wound around the outer peripheral surface of the shaft 223 from below, thereby forming a folded-back portion 221 on the screen member 220. The flange portions 224, 224 have a diameter larger than that of the shaft 223, so that the shaft 223 is prevented from coming off.

A positioning member 225 that restricts the upward movement of the bar member 222 is provided above the shaft 223. The positioning member 225 is arranged adjacent to the vehicle side of the second horizontal frame 113 of the base frame 110 in the thickness direction Y.

The positioning member 225 is a plate member having an L-shaped cross section, extends in the vertical direction Z, and is fixed to the second horizontal frame 113, and the vehicle 2 in the thickness direction Y from the lower end of the flange portion 226. An engaging portion 227 that extends to the side and is arranged to be engageable with the bar member 222 is provided.

The tip end of the screen member 220 is sandwiched between the flange portion 226 of the positioning member 225 and the second horizontal frame 113, and the screen member 220 and the flange portion 226 are both fixed to the second horizontal frame 113. ing.

The engaging portion 227 of the positioning member 225 is disposed adjacent to and above the shaft 223, and the upward movement of the positioning member 225 is restricted by the engagement with the engaging portion 227. As a result, the upper end position of the bar member 222 is defined at the closed position P1.

As shown in FIG. 2, the shelter door unit 200 is connected to adjacent driven door units 100 on both sides in the width direction X, respectively. Specifically, the escape door unit 200 and the base frames 110 of the driven door unit 100 are connected to each other, and the escape door body 210 and the driven door body 120 are connected to each other.

The base frame 110 of the shelter door unit 200 and the base frame 110 of the driven door unit 100 are formed by joining the side surfaces of the vertical frames 111, 111 adjacent to each other via a connecting means such as a bolt. , Are interconnected. As a result, the shelter door unit 200 and the driven door unit 100 are positioned relative to each other.

The evacuation door body 210 and the driven door body 120 are connected between the upper end portions of the respective elevating frames 211 and 121. The connecting structure between the elevating frames 211 and 121 is not particularly limited, but in the present embodiment, connection is made via a pair of connecting members 217 and 129.

The one connecting member 217 is, for example, a plate-shaped member having an L-shape in front view, and is connected to the elevating frame 211 by bolts or the like so as to project from the upper end of the elevating frame 211 of the shelter door body 210 to the outside in the width direction X. It is fixed to the side. The other connecting member 129 is also a plate-shaped member having an L shape in a front view, for example, so as to project from the upper end portion of the elevating frame 121 of the driven door body 120 toward the evacuation door body 210 side in the width direction X. It is fixed to the side surface of the elevating frame 121 by bolts or the like.

The pair of connecting members 217 and 129 are connected to each other by overlapping the protruding portions from the elevating frames 211 and 121 and joining them by bolts or the like. In this way, the retracting door body 210 connected to the driven door body 120 via the connecting members 217 and 129 interlocks with the up and down movement of the driven door body 120, and is connected to the driven door body 120. It is designed to move up and down as a unit. That is, the connecting members 217 and 129 function as interlocking means for moving the evacuation door body 210 up and down in conjunction with the driven door body 120.

The escape door unit 200 is also provided with a lid portion 118 similar to the driven door body 120, and the lid portion 118 is opened and closed according to the elevation of the escape door body 210.

Next, the operation and action of the platform door apparatus 1 according to this embodiment will be described with reference to FIGS. 10 to 14.

As shown in FIG. 10, when the vehicle 2 stops after entering the platform 3 of the station and passengers get on and off, the door 10 of the platform door apparatus 1 is opened. In the open state of the door 10, the driven door bodies 120, 120 and the shelter door body 210 are located below the upper surface 33 of the floor 31 of the platform 3 and are housed inside the base frame 110 (opened). Position P2).

In the driven door unit 100 in the open state shown in FIGS. 11 and 12, the lift frame 121 of the driven door body 120 includes a pair of vertical frames 111, 111 in the width direction with respect to the drive mechanism 300 and the support member 115. By being arranged outside the X, the interference with the drive mechanism 300 and the support member 115 is avoided. Further, since the panel member 126 of the driven door body 120 is arranged on the side opposite to the drive mechanism 300 of the first and second horizontal frames 124 and 125 in the thickness direction Y, the drive mechanism 300 and the support member 115. Interference with is avoided. Therefore, in the opened state (open position P2) of the door 10, the driven door body 120 is housed in the base frame 110 without interfering with the drive mechanism 300 and the support member 115.

On the other hand, in the evacuation door unit 200 in which the drive mechanism 300 and the supporting member 115 are not provided, the evacuation door body 210 is also housed in the base frame 110 without interfering with other members (see FIG. 14). ..

Since the entire platform door device 1 is stored under the upper surface 33 of the floor portion 31 of the platform 3 when the door 10 is opened and closed, there is no projecting portion on the platform 3 and there is no passage space on the platform 3. It is possible to increase the number of passengers and facilitate getting on and off.

In the opened state of the door 10, in each of the driven door units 100, 100 and the retreat door unit 200, the free end 118c of the lid portion 118 is arranged on the upper surface 112a of the first horizontal frame 112 of the base frame 110. Has become. Accordingly, the driven door body 120 and the shelter door body 210 are protected by being covered from the upper side by the lid portion 118. At this time, the upper surface 33 of the floor portion 31 of the platform 3 and the upper surface of the lid portion 118 are substantially flush with each other. As a result, the lid portion 118 functions as a step of closing the space between the platform 3 and the entrance/exit 21 of the vehicle 2 when getting on and off.

As shown in FIG. 13 and FIG. 14, in the opening operation of the door 10, the driven door body 120 is lowered by the driving mechanism 300, and the elevating frame 211 of the shelter door body 210 causes the driven door body 120 to move. It is lowered in conjunction with the descent.

At this time, in the evacuation door body 210, one upper end of the screen member 220 descends together with the elevating frame 211, but the other lower end of the screen member 220 fixed to the base frame 110 is the floor of the platform 3. The state of being fixed at a position near the portion 31 is maintained. As a result, the relative distance between both ends of the screen member 220 is reduced in the up-and-down direction Z, so that the folded-back portion 221 forming the lower edge portion of the screen member 220 is lowered and the folded portion of the screen member 220 is vertically moved. The direction X dimension increases. At this time, the folded-back portion 221 of the screen member 220 descends at a speed half that of the elevating frame 211. Therefore, the relative height of the folded portion 221 with respect to the lower end of the elevating frame 211 becomes higher as the descent of these parts proceeds.

As the folding of the screen member 220 progresses in this way, in the evacuation door body 210 that is closed over the entire surface in the closed state, the lower portion of the folding portion 221 between the pair of vertical frames 212 of the elevating frame 211. The opening S1 is formed in the.

When the retracting door body 210 descends, the folded-back portion 221 of the screen member 220 descends together with the bar member 222 while being constantly pressed by the bar member 222 from the upper side. As a result, the screen member 220 is folded while being stretched downward by the bar member 222. Therefore, the slack of the screen member 220 is suppressed during the descent of the evacuation door body 210 and when the descent is completed.

As described above, the upper end of the opening S1 formed in the lower portion of the shelter door body 210 in the open state is constituted by the folded-back portion 221 of the screen member 220, and the folded-back portion 221 is positioned by the bar member 222. Has become. The brim portion 224 of the bar member 222 is arranged so as to contact the vertical frame 212 of the elevating frame 211 from the platform 3 side, whereby the elevating frame 211 prevents the bar member 222 from shaking. Is functioning as.

In the opened state in which the evacuation door body 210 has been completely lowered, the folded-back portion 221 of the screen member 220 is arranged at a predetermined height above the rail laying surface 4 with a space therebetween. As a result, the opening S1 formed in the lower portion of the open shelter door body 210 can function as a shelter opening that opens the shelter space S to the vehicle 2 side. Therefore, in the unlikely event that a person falls from the platform 3 to the rail laying surface 4, even if the door 10 is lowered to the lower side of the platform 3, the person can smoothly enter the shelter space S through the opening S1 of the shelter door body 210. It is possible to move.

Further, since the upper end of the shelter opening S1 is formed by the folded-back portion 221 of the screen member 220, a person who wants to move from the rail laying surface 4 to the shelter space S pushes up the folded-back portion 221 to save the shelter. The opening S1 for use can be easily widened. Therefore, it is possible to secure a larger opening S1 for the escape, and it is possible to smoothly move to the escape space S through the opening S1.

When the entrance/exit 21 of the vehicle 2 is closed after the passengers have finished getting on/off the door 10 in the open state, the door 10 of the platform door apparatus 1 is driven to rise to the closed position P2.

At this time, in the drive mechanism 300 of the driven door unit 100, the sprocket 303 is rotated by the motor 310, and the pair of zip chains 301, 301 are guided by the zip chain guide groove 305 and from the upper end side. The top is lifted while being engaged with each other and being stiffened.

Since the lower surface of the head member 123 of the driven door body 120 is connected to the tops of the zip chains 301, 301, the lower surface of the head member 123 is pushed up and the driven door body 120 starts to rise. At this stage, since the guide unit 130 is not engaged with the driven door body 120, the guide unit 130 does not move up and only the driven door body 120 moves up. Further, at this time, the driven door body 120 pushes up the lid portion 118 on the upper surface of the headstock member 123, and ascends while rotating so as to displace the free end 118c side to the platform 3 side.

Further, at this time, the relative movement of the driven door body 120 with respect to the guide unit 130 in the vertical direction Z is guided by the second rail unit 127 described above. As a result, a smooth raising operation of the driven door body 120 is realized.

When the driven door body 120 reaches a predetermined intermediate position between the open position P1 and the closed position P2, as shown in FIG. 5, the stopper 137 of the guide unit 130 causes the plate member 128 of the driven door body 120. And the relative movement of the driven door body 120 with respect to the guide unit 130 is prevented.

In this way, when the driven door body 120 and the guide unit 130 are engaged with each other, the driving mechanism 300 continues to raise the driven door body 120, so that the driven door body 120 rises. The guide unit 130 moves up.

At this time, the relative movement of the guide unit 130 with respect to the base frame 110 is guided by the above-mentioned first rail unit 116. As a result, a smooth raising operation of the guide unit 130 is realized.

When the driven door body 120 and the guide unit 130 reach a predetermined closed position P1, the extension portion 136 of the guide unit 130 is engaged with the stopper 117 of the base frame 110, and the guide unit 130 moves relative to the base frame 110. Is blocked. As a result, the rise of the door 10 that exceeds the predetermined height is reliably regulated.

When the driven door body 120 rises as described above, the evacuation door body 210 connected to the driven door body 120 rises together with the driven door body 120. At this time, also in the shelter door unit 200, similar to the driven door unit 100, the upward relative movement of the shelter door body 210 with respect to the guide unit 130 and the upward relative movement of the guide unit 130 with respect to the base frame 110. Are guided by the guide mechanism G1. The retracting door body 210 rises while being supported by the pair of driven door bodies 120 from both sides in the width direction X. Therefore, even in the evacuation door unit 200 in which the drive mechanism 300 is not mounted, the evacuation door body 210 can be smoothly raised.

When the elevating frame 211 of the evacuation door body 210 rises, one end of the screen member 220 fixed to the upper edge of the elevating frame 211 and the other end of the screen member 220 fixed to the base frame 110 are vertically moved. The direction Z interval gradually increases. As a result, the screen member 220 is stretched in the vertical direction Z while reducing the folded portion.

While the evacuation door body 210 is rising, the relative height of the folded portion 221 of the screen member 220 to the lower end of the elevating frame 211 gradually decreases, and accordingly, the opening S1 of the evacuation door body 210 gradually increases in the vertical direction Z. And finally the opening S1 disappears from the escape door body 210.

In the state in which the escape door body 210 is raised to the closed position P1, the folded-back portion 221 of the screen member 220 is arranged below the upper surface 33 of the floor portion 31 of the platform 3. As a result, in the closed shelter door unit 200, the entire height from the upper surface 33 of the floor portion 31 to the upper edge portion of the shelter door body 210 is closed by the screen member 220, so that the platform 3 It is possible to surely prevent the fall of.

According to the present embodiment, since the drive mechanism 300 is not provided in the shelter door unit 200, the structure of the shelter door unit 200 can be simplified and the above-mentioned shelter opening S1 can be widened. Can be secured.

Further, since the screen member 220 of the shelter door body 210 is made of lightweight canvas, it is possible to reduce the load on the motor 310 that raises and lowers the shelter door body 210 via the driven door body 120. The motor 310 can be downsized.

On the other hand, in each driven door unit 100, the driven door body 120 and the pair of guide units 130, 130 can be moved up and down by one drive mechanism 300, so the driven door body 120 and the guide unit 130, Since it is not necessary to provide a lifting device for each of the 130, the drive mechanism 300 can be made compact.

At the closed position P1 where the door 10 is in the closed state, the relative heights of the driven door body 120 and the shelter door body 210 with respect to the guide unit 130 are increased as compared with the open position P2. Therefore, the height of the entire door 10 can be ensured to a predetermined height.

In each driven door unit 100 at the closed position P1 where the door 10 is in the closed state, the upper end of the driven door body 120 is arranged at a predetermined height from the upper surface 33 of the floor portion 31 of the platform 3. A portion of the driven door body 120 between the head member 123 and the second horizontal frame 125 is always closed by the panel member 126. In the closed state of the door 10, the second horizontal frame 125 is arranged at a position above the upper surface 33 of the floor 31 of the platform 3. Therefore, between the lower surface of the second horizontal frame 125 of the driven door body 120 and the upper surface 33 of the floor portion 31 of the platform 3, there is a gap g that connects the vehicle 2 side and the platform 3 side (FIG. 3, FIG. (See FIG. 5).

At this time, the free end 118c of the lid portion 118 is pushed up by the door 10 so that it is located above the lower surface of the second horizontal frame 125 of the driven door body 120 in the closed position P1 in the vertical direction Z. Has become. Thus, the lid portion 118 can close the gap g generated between the lower surface of the driven door body 120 and the upper surface 33 of the floor portion 31 of the platform 3 from the platform 3 side. It is possible to prevent the article from falling onto the track.

Further, in the closed state, in each of the driven door unit 100 and the shelter door unit 200, the fifth to eighth pulleys 133e to 133h of the guide unit 130 are guided by the first rail unit 116 of the base frame 110. The first to fourth pulleys 133a to 133d of the guide unit 130 maintain the state of being guided by the second rail unit 127 of the driven door body 120 and the shelter door body 210. As a result, the entire door 10 can be stably supported while raising the door 10 to a predetermined height.

When lowering the door 10 located at the closed position P1, the drive mechanism 300 may lower the driven door body 120 door 10. At this time, in the driven door unit 100, the guide unit 130 is lowered to the intermediate position together with the driven door body 120 while maintaining the engagement state with the driven door body 120. Also in the evacuation door unit 200, when the evacuation door body 210 descends in conjunction with the driven door body 120, the guide unit 130 descends together while maintaining the engagement state with the evacuation door body 210. ..

As a result, when the lowering of the guide unit 130 is completed, the driven door body 120 and the shelter door unit 200 are continuously lowered independently. Here, when the upper edge portions of the driven door body 120 and the shelter door body 210 pass through the free end 118c of the lid portion 118, the lid portion 118 displaces the free end 118c toward the vehicle 2 side. Rotate. When the descent of the driven door body 120 and the evacuation door body 210 is completed, the open state shown in FIG. 10 is established. At this time, the lid portion 118 covers the door 10 from above.

Although the present invention has been described above with reference to the above embodiment, the present invention is not limited to the above embodiment.

For example, various changes can be made to the opening forming means for forming a shelter opening in the shelter door body and the configuration related thereto. FIG. 15 shows a shelter door unit 400 according to a modification. ing.

In the shelter door unit 400 shown in FIG. 15, instead of the above-mentioned screen member 220, a plurality of panel members arranged in the vertical direction so as to extend downward from the upper edge of the elevating frame are used. Hereinafter, a specific configuration of the shelter door unit 400 will be described.

The shelter door unit 400 includes a shelter door body 410 that forms a part of the door 10, a base frame 110 that supports the shelter door body 410, and a guide mechanism G1 that guides the raising and lowering of the shelter door body 410. Is equipped with. The configurations of the base frame 110 and the guide mechanism G1 are the same as those in the above-described embodiment, and thus the description thereof will be omitted.

As shown in FIGS. 15 to 17, the shelter door body 410 includes an elevating frame 411 that forms the skeleton thereof, and a plurality of panels 415, 420, 430 attached to the elevating frame 411.

The elevating frame 411 includes a pair of vertical frames 412, 412 extending in the vertical direction Z, and a head member 413 and a horizontal frame 414 extending in the width direction X and connecting the pair of vertical frames 412, 412.

Similar to the elevating frame 211 in the above-described embodiment, each vertical frame 412 of the elevating frame 411 has, for example, a U-shaped cross section that opens to the vehicle 2 side (see FIG. 4 ), and the headstock member 413 has, for example, a cross section. It has a substantially rectangular shape and is joined to the upper ends of the vertical frames 412 at both ends thereof.

As shown in FIG. 17, the horizontal frame 414 has, for example, a rectangular cross section, and is joined to a portion within a region ⅓ from the upper end of the vertical frame 412 in the vertical direction Z. The lateral frame 414 of the escape door body 410 is arranged at a position where the side surface of the lateral frame 414 on the platform 3 side is offset to the vehicle 3 side in the thickness direction Y with respect to the lateral surface of the vertical frame 412 on the platform 3 side. Has been done.

The plurality of panels 415, 420, 430 include a fixed panel 415 fixed to the elevating frame 411 and a first slide panel 420 supported by the elevating frame 411 via a slide mechanism 440 so as to be slidable in the vertical direction Z. It is composed of the second slide panel 430.

In the example shown in FIG. 14, two slide panels are provided, but one slide panel or three or more slide panels may be provided.

Rail portions 416 and 416 forming a slide mechanism 440 are attached to the side surfaces of the elevating frame 411 on the inner side in the width direction X of the vertical frames 412 and 412. Each rail portion 416 is a long member that extends in the vertical direction Z, and has a U-shaped cross section that is open to the inside in the width direction X (see FIG. 16 ).

The rail portion 416 has a side surface on the outer side in the width direction X joined to a side surface on the inner side in the width direction X of the vertical frame 412 by welding or the like, and an upper end portion of the rail portion 416 is joined to a lower surface of the headstock member 413. There is. The lower end of the rail portion 416 is arranged above the lower end of the elevating frame 411. The width direction Y position of the rail portion 416 is arranged adjacent to the side surface on the platform 3 side of the horizontal frame 414 at the width direction Y position.

The vertical frame 412 of the elevating frame 411 has a first engaging portion 417 that engages the first slide panel 420 from below and a second engaging portion 418 that engages the second slide panel 430 from below. It is installed. The first engagement portion 417 and the second engagement portion 418 are configured by, for example, rectangular block members.

The first engagement portion 417 is located at a position where the side surface of the first engagement portion 417 on the platform 3 side abuts or approaches the side surface of the rail portion 416 on the vehicle 2 side in the thickness direction Y of the vertical frame 412, and The vertical frame 412 is arranged below the center in the vertical direction Z. In the thickness direction Y, the side surface of the second engaging portion 418 on the platform 3 side of the second engaging portion 418 is located at a position where the upper surface of the second engaging portion 418 abuts or approaches the lower end portion of the rail portion 416. It is arranged so as to project further toward the platform 3 side than the side surface on the platform 3 side. The first engaging portion 417 and the second engaging portion 418 are both provided so as to project from the side wall portion of the vertical frame 412 on the inner side in the width direction X.

The fixed panel 415 is a plate material made of transparent glass, for example. However, the material and color of the fixed panel 415 are not particularly limited, and for example, an acrylic plate may be used as the fixed panel 415. Both ends of the fixed panel 415 in the width direction X are joined to the vertical frames 412 and 412 of the elevating frame 411. The upper end portion of the fixed panel 415 is joined to the headstock member 413 via a mounting member, for example, and the lower end portion of the fixed panel 415 is joined to the horizontal frame 414 via a mounting member, for example. As a result, the rectangular opening formed between the pair of vertical frames 412, 412, the head member 413 and the horizontal frame 414 is closed by the fixed panel 415 from the platform 3 side.

The first slide panel 420 includes a pair of vertical frames 421 and 421 extending in the vertical direction Z, an upper horizontal frame 422 extending in the width direction X and connecting the pair of vertical frames 421 and 421, and a lower horizontal frame 423. A panel member 424 attached to the pair of vertical frames 421, 421 and a plurality of pulleys 425a, 425a, 425b, 425b forming a slide mechanism 440 are provided.

As shown in FIG. 16, each vertical frame 421 is, for example, a first plate member 421a extending in the up-down direction Z and a plate 3 side extending in the up-down direction Z and in the thickness direction Y with respect to the first plate member 421a. It has the 2nd plate member 421b arranged.

The second plate member 421b includes a horizontal portion 421c that is parallel to the first plate member 421a in a plan view, a vertical portion 421d that extends from the inner end in the width direction X of the horizontal portion 421c to the vehicle 2 side, and a vehicle portion 2 of the vertical portion 421d. It has a flange portion 421e extending inward in the width direction X from the side end portion in parallel with the first plate member 431a. In the vertical frame 421, a portion on the inner side in the width direction X of the first plate member 421a and a flange portion 421e of the second plate member 421b are joined together, and between the first plate member 421a and the second plate member 421b. An open portion having a U-shaped cross section that opens outward in the width direction X in a plan view is formed.

The plurality of pulleys 425a, 425a, 425b, 425b are composed of an upper pulley 425a arranged at the upper end of each vertical frame 421 in the first slide panel 420 and a lower pulley 425b arranged at the lower end. .. The upper pulley 425a and the lower pulley 425b are arranged between the first plate member 421a and the second plate member 421b of each vertical frame 421, and are arranged so as to be rotatable about an axis extending in the thickness direction Y. It is supported by the plate member 421a and the second plate member 421b.

The upper horizontal frame 422 is formed of a columnar member extending in the width direction X, the both ends thereof are joined to the upper ends of the vertical frames 421, 421, and the lower horizontal frame 423 is formed of a columnar member extending in the width direction X. Both ends are joined to the lower ends of the vertical frames 421, 421. It should be noted that both ends of the upper and lower horizontal frames 422, 423 are provided with groove portions for avoiding interference with the rail portion 416.

The panel member 424 of the first slide panel 420 is a plate material made of, for example, transparent glass. However, the material and color of the panel member 424 are not particularly limited, and for example, an acrylic plate may be used as the panel member 424. Both ends of the panel member 424 in the width direction X are joined to the vertical frames 421, 421 of the first slide panel 420. The upper end and the lower end of the panel member 424 are joined to the upper horizontal frame 422 and the lower horizontal frame 423 via, for example, a mounting member (not shown). Thereby, the rectangular opening formed between the pair of vertical frames 421, 421 and the upper and lower horizontal frames 422, 423 is closed by the panel member 424 from the platform 3 side.

As shown in FIGS. 16 and 17, the first slide panel 420 is arranged at a position offset to the platform 3 side in the thickness direction Y with respect to the horizontal frame 414 and the fixed panel 415 of the elevating frame 411. As a result, the interference of the first slide panel 420 with the horizontal frame 414 and the fixed panel 415 is avoided.

As shown in FIGS. 15 and 16, the upper and lower pulleys 425a and 425b of the first slide panel 420 are rollably engaged with the rail portion 416. The groove portions of the upper and lower pulleys 425a and 425b are fitted to the inner ends in the width direction X of the side wall portion of the rail portion 416 on the vehicle 2 side. As a result, relative movement of the first slide panel 420 with respect to the elevating frame 411 in the vertical direction Z is guided.

Further, the lower horizontal frame 423 of the first slide panel 420 is arranged in the thickness direction Y and the width direction X so as to overlap the above-described first engaging portion 417. Accordingly, the first engaging portion 417 can be engaged with the lower surface of the lower horizontal frame 423 of the first slide panel 420 from below.

In this way, when the first slide panel 420 is engaged with the first engaging portion 417, the upper horizontal frame 422 of the first slide panel 420 is arranged in the thickness direction Y platform 3 of the horizontal frame 414 of the elevating frame 411. It is located adjacent to the side. At this time, in the vertical direction Z, the upper surface of the horizontal frame 414 of the elevating frame 411 and the upper surface of the upper horizontal frame 422 of the first slide panel 420 are arranged at substantially the same height position.

If the first engaging portion 417 of the elevating frame 411 is engaged with the lower horizontal frame 423 of the first slide panel 420 while the elevating frame 411 is rising, the first slide panel 420 may move up together with the elevating frame 411. It has become.

Similarly to the first slide panel 420, the second slide panel 430 includes a pair of vertical frames 431 and 431 extending in the vertical direction Z, and an upper horizontal frame 432 extending in the width direction X and connecting the pair of vertical frames 431 and 431. , A lower horizontal frame 433, a panel member 434 attached to these frames 431, 431, 432, 433, and a plurality of pulleys 435a, 435a, 435b, 435b forming a slide mechanism 440.

Each vertical frame 431 is, for example, a first plate member 431a extending in the vertical direction Z and a second plate member extending in the vertical direction Z and arranged on the platform 3 side in the thickness direction Y with respect to the first plate member 431a. 431b and.

The second plate member 431b includes a horizontal portion 431c that is parallel to the first plate member 431a in a plan view, a vertical portion 431d that extends toward the vehicle 2 side from an inner end in the width direction X of the horizontal portion 431c, and the vehicle 2 of the vertical portion 431d. It has a flange portion 431e extending inward in the width direction X from the side end portion in parallel with the first plate member 431a. In the vertical frame 431, a portion on the inner side in the width direction X of the first plate member 431a and a flange portion 431e of the second plate member 431b are joined together, and the first plate member 431a and the second plate member 431b are provided between them. An opening having a U-shaped cross section is formed so as to open to the outside in the width direction X in a plan view.

The plurality of pulleys 435a, 435a, 435b, 435b are configured by an upper pulley 435a arranged at the upper end of each vertical frame 431 in the second slide panel 430 and a lower pulley 435b arranged at the lower end. .. The upper pulley 435a and the lower pulley 435b are arranged between the first plate member 431a and the second plate member 431b of each vertical frame 431, and are arranged so as to be rotatable about an axis extending in the thickness direction Y. It is supported by the plate member 431a and the second plate member 431b.

The upper horizontal frame 432 is formed of a columnar member extending in the width direction X, and both ends thereof are joined to the upper ends of the vertical frames 431 and 431, and the lower horizontal frame 433 is formed of a columnar member extending in the width direction X. The both ends are joined to the lower ends of the vertical frames 431 and 431. Grooves are provided at both ends of the upper and lower lateral frames 432, 433 to avoid interference with the rail 416.

The panel member 434 of the second slide panel 430 is a plate material made of, for example, transparent glass. However, the material and color of the panel member 434 are not particularly limited, and for example, an acrylic plate may be used as the panel member 434. Both ends of the panel member 434 in the width direction X are joined to the flange portions 431e and 431e of the vertical frames 431 and 431 of the first slide panel 420. The upper end and the lower end of the panel member 434 are joined to the upper horizontal frame 432 and the lower horizontal frame 433 via, for example, a mounting member (not shown). As a result, the rectangular opening formed between the pair of vertical frames 431, 431 and the upper and lower horizontal frames 432, 433 is closed by the panel member 434 from the platform 3 side.

As shown in FIGS. 16 and 17, the second slide panel 430 is arranged at a position offset from the first slide panel 420 toward the platform 3 side in the thickness direction Y. Thereby, the interference between the first slide panel 420 and the second slide panel 430 is avoided.

As shown in FIGS. 15 and 16, the upper and lower pulleys 435a and 435b of the second slide panel 430 are rollably engaged with the rail portion 416. The groove portions of the upper and lower pulleys 435a and 435b are fitted to the inner ends in the width direction X of the side wall portion of the rail portion 416 on the vehicle 2 side. As a result, relative movement of the second slide panel 430 with respect to the elevating frame 411 in the up-down direction Z is guided.

Further, the lower horizontal frame 423 of the second slide panel 430 is arranged in the thickness direction Y and the width direction X so as to overlap the above-described second engaging portion 418. Accordingly, the second engaging portion 418 of the elevating frame 411 can be engaged with the lower horizontal frame 433 of the second slide panel 430 from the lower side.

In this way, when the second slide panel 430 is engaged with the second engaging portion 418, the upper horizontal frame 432 of the second slide panel 430 has the same thickness as the lower horizontal frame 423 of the first slide panel 420. It is arranged adjacent to the direction Y platform 3 side. At this time, in the vertical direction Z, the upper surface of the lower horizontal frame 423 of the first slide panel 420 and the upper surface of the upper horizontal frame 432 of the second slide panel 430 are arranged at substantially the same height position.

As shown in FIGS. 15 and 17, in the retracting door body 410 in the closed state, the fixed panel 415, the first slide panel 420, and the second slide panel 430 are arranged side by side in the vertical direction Z without any gap. There is. Thus, the opening formed between the pair of vertical frames 412, 412 of the elevating frame 411 is covered with the fixed panel 415, the first slide panel 420, and the second slide panel 430 over substantially the entire surface. Therefore, the fall prevention from the platform 3 is surely achieved.

Next, the state of the retractable door unit 400 at the open position P2 will be described with reference to FIGS. 15 and 18.

As shown in FIGS. 15 and 18, a fourth horizontal frame 119 having an L-shaped cross section, for example, is attached to the base frame 110 of the escape door unit 400 at a position above the center in the vertical direction Z. There is. The fourth horizontal frame 119 is arranged so as to extend in the width direction X, and both ends thereof are joined to the side wall portions of the vertical frames 111, 111 on the platform 3 side.

At both end portions of the fourth horizontal frame 119 in the width direction X, a descent regulation portion 450 as an aperture forming means that forms an opening at the open position by regulating the descent of the first slide panel 420 and the second slide panel 430, 450 are provided. The lowering restricting portions 450, 450 are, for example, flat plates, and are fixed to the lower surface of the fourth horizontal frame 119 with bolts or the like.

When viewed in the up-and-down direction Z, the lowering restricting portions 450 are arranged so as to overlap the lower horizontal frame 423 of the first slide panel 420 and the lower horizontal frame 433 of the second slide panel 430. Thereby, the lowering restricting portion 450 can be engaged with the lower lateral frames 423, 433 from the lower side.

The vehicle 2 side end portion in the thickness direction Y of the lowering regulation portion 450 is arranged at substantially the same position as the side surfaces of the horizontal frames 422, 423 of the first slide panel 420 on the vehicle 2 side. Further, the lowering restricting portion 450 is arranged at substantially the same height position in the vertical direction Z with respect to the horizontal frame 414 of the shelter door body 410 in the open state.

The retractable door unit 400 is connected to the driven door unit 100 as in the above-described embodiment.

Next, the operation and action of the escape door unit 400 in the modified example will be described. Note that description of the same operations and actions as those of the above-described embodiment will be omitted.

In the opened state of the door 10, the driven door body 120 is lowered by the drive mechanism 300, and the elevating frame 411 of the evacuation door body 410 is lowered in conjunction with the descent of the driven door body 120.

At this time, when the elevating frame 411 of the shelter door body 410 is started to descend, the first slide panel 420 is engaged with the first engaging portion 417 and the second slide panel 430 is engaged with the second engaging portion. 418 is engaged. That is, the evacuation door body 410 starts to descend with the front surface of the evacuation door body 410 closed by the fixed panel 415, the first slide panel 420, and the second slide panel 430.

After that, when the lowering of the elevating frame 411 proceeds until the lower surface of the lower horizontal frame 433 of the second slide panel 430 contacts the lowering regulation portion 450 below the floor portion 31 of the platform 3, the second slide panel 430 Is placed on the pair of descending regulation parts 450, 450, and the engagement with the second engaging part 418 of the elevating frame 411 which continues descending is released.

When the elevating frame 411 further descends, the first slide panel 420 descends together with the elevating frame 411 and increases the overlap amount in the vertical direction Z with respect to the second slide panel 430 in the stationary state. Then, when the lowering of the elevating frame 411 progresses until the lower surface of the lower horizontal frame 423 of the first slide panel 420 abuts the lowering restricting portion 450, the first slide panel 420 also moves above the pair of lowering restricting portions 450, 450. The engagement with the first engaging portion 417 of the elevating frame 411, which is placed on, and continues to descend, is released. At this time, the first slide panel 420 and the second slide panel 430 are completely overlapped in the vertical direction.

The elevating frame 411 continues to descend, and when the lower surface of the headstock member comes into contact with the upper surfaces of the upper horizontal frames 422, 432 of the first slide panel 420 and the second slide panel 430 in the stationary state, the escape door body. The lowering of the elevating frame 411 of 410 is completed. At this time, the fixed panel 415, which has finished descending together with the elevating frame 411, is arranged in the up-down direction Z so as to completely overlap the first slide panel 420 and the second slide panel 430, which have already finished descending. There is.

In this way, in the open state, the fixed panel 415, the first slide panel 420, and the second slide panel 430 are arranged so as to overlap in the up-down direction Z on the upper portion of the evacuation door body 410, and thus the evacuation door The opening S2 is formed in the lower portion of the door body 410, more specifically, in the lower portion of the lowering regulation portion 450.

In the open state in which the evacuation door body 410 has been completely lowered, the lower ends of the first slide panel 420 and the second slide panel 430 are arranged at a predetermined height above the rail laying surface 4 with a space therebetween. More specifically, the lower ends of the first slide panel 420 and the second slide panel 430 are arranged above the center of the base frame 110 in the vertical direction Z.

Accordingly, the opening S2 can be widely formed in the lower portion of the shelter door body 410 in the opened state, and the opening S2 can function as a shelter opening that opens the shelter space S to the vehicle 2 side. Therefore, in the unlikely event that a person has fallen from the platform 3 to the rail laying surface 4, even if the door 10 is lowered to the lower side of the platform 3, the person can smoothly enter the shelter space S through the opening S2 of the shelter door body 410. It is possible to move.

When the entrance/exit 21 of the vehicle 2 is closed after the passengers have finished getting on/off in the open state of the door 10, the door 10 of the platform door apparatus 1 is driven to rise to the closed position P1. Specifically, at this time, the driven door body 120 driven by the drive mechanism 300 and the evacuation door body 210 connected to the driven door body 120 ascend.

When the elevating frame 411 of the evacuation door body 210 rises, first, the fixed panel 415 fixed to the elevating frame 411 projects upward from the upper surface 33 of the floor portion 31 of the platform 3. Further, when the elevating frame 411 further moves upward, when the first engaging portion 417 of the elevating frame 411 reaches the height position of the lowering regulating portion 450 in the up-down direction Z, the first engaging portion 417 moves to the first position. The first slide panel 420 is engaged with the slide panel 420 from below, so that the first slide panel 420 is interlocked with the elevation of the elevating frame 411 and is elevated.

At this time, the overlap portion of the first slide panel 420 in the vertical direction Z with respect to the second slide panel 430 in the stationary state is reduced, and finally, only the lower horizontal frame 423 of the first slide panel 420 is moved to the second side. The slide panel 430 overlaps.

At this time, in the up-down direction Z, the second engaging portion 418 of the elevating frame 411 reaches the height position of the lowering restricting portion 450 and is engaged with the lower horizontal frame 433 of the second slide panel 430 from below. .. As a result, the second slide panel 430 interlocks with the elevation of the elevating frame 411 and ascends. Then, finally, the elevating frame 411 rises to the closed position P1 regulated by the guide unit 130 described above.

The fixed panel 415, the first slide panel 420, and the second slide panel 430 are arranged so as to extend in the up-down direction Z in this order from the upper side when the retracting door body 410 is raised to the closed position P1. The gap g between the lower horizontal frame 433 of the second slide panel 430 and the upper surface 33 of the floor portion 31 is closed from the platform 3 side by the lid portion 118 described above.

As a result, in the shelter door unit 400 in the closed state, the plurality of panels 415, 420, 430 and the lid portion 118 cover the entire height from the upper surface 33 of the floor portion 31 to the upper edge portion of the shelter door body 410. In this state, the fall from the platform 3 is reliably prevented.

[Second Embodiment]
Next, a platform door device according to the second embodiment will be described with reference to FIG. Note that, in the second embodiment, the same components as those in the first embodiment will be denoted by the same reference numerals in FIGS. 19 to 27, and description thereof will be omitted.

As shown in FIG. 19, the platform door device includes a pair of driven door units 500, 500, a retracting door unit 600 arranged between the driven door units 500, 500 in the width direction X, And a drive mechanism 300 that drives each of the driven door units 500, 500. The drive mechanism 300 has the same configuration as that of the first embodiment.

As shown in the front view of FIG. 20, each driven door unit 500 includes a base frame 510 as a base portion that supports the door 10, a first door body 520 and a second door body 530 that form the door 10. I have it.

As shown in the front view of FIG. 20 and the side view of FIG. 22, the base frame 510 includes a pair of vertical frames 511 and 511 extending in the vertical direction Z and a pair of vertical frames 511 and 511 extending in the width direction X. It is provided with first, second, and third horizontal frames 512, 513, and 514 to be connected.

As shown in the cross-sectional view of FIG. 21, each vertical frame 511 has a first vertical frame member 511a and a second vertical frame member 511b that are arranged at intervals in the thickness direction Y. The first vertical frame member 511a is arranged on the platform 3 side and has, for example, a U-shaped cross section that is open to the vehicle 2 side in the thickness direction Y, and the second vertical frame member 511b is arranged on the vehicle 2 side. In addition, it has a U-shaped cross section that is open to the platform 3 side in the thickness direction Y, for example.

As shown in FIGS. 21 and 22, the first horizontal frame 512 has, for example, an L-shaped cross section, and is joined to the side wall portion on the vehicle 2 side at the upper ends of the second vertical frame members 511b and 511b. The second horizontal frame 513 has, for example, an L-shaped cross section, and is joined to a side wall portion on the platform 3 side at the upper end portions of the first vertical frame members 511a and 511a. The third horizontal frame 514 has, for example, a U-shaped cross section that is open to the upper side in the vertical direction Z, and is joined to the lower ends of the vertical frames 511 and 511.

As shown in FIG. 20, a support member 115 for supporting the drive mechanism 300 is attached to an intermediate portion of the third horizontal frame 514 of the base frame 510 in the width direction X, as in the first embodiment. The support member 115 is, for example, a columnar member that extends vertically and is fixed to the third horizontal frame 514 with a bolt or the like (not shown).

As shown in FIGS. 20 to 22, on the inner side surface of the first vertical frame member 511a on the platform 3 side of the base frame 510, a first rail 516 forming a part of the first guide portion G501 and extending in the vertical direction Z is formed. Is attached. The first rail 516 is fixed to the inner surface of the first vertical frame member 511a in the thickness direction Y by, for example, a bolt (not shown) or welding.

As shown in FIGS. 20 and 22, a stopper 517 is provided at the upper end of each first vertical frame member 511a of the base frame 510 to restrict the rise of the second door body 530. The stopper 517 is provided, for example, so as to project from the first vertical frame member 511a inward in the thickness direction Y. As the stopper 517, for example, a block member having a screw hole inside is used. In this case, the block member is fixed to the vertical frame 511 with, for example, bolts.

Like the first embodiment, a plate-shaped lid portion 118 that covers the base frame 110 is provided above the first horizontal frame 512 and the second horizontal frame 513 of the base frame 510. Like the first embodiment, the lid part 118 is rotatable about an axis provided on the platform 3 side in the thickness direction Y.

The first door body 520 has a pair of vertical frames 521 and 521 extending in the vertical direction Z, a head member 522 extending in the width direction X and connecting the pair of vertical frames 521 and 521, and first and second horizontal frames 523. And 524. The first door body 520 further includes screen members 525a and 525b that connect the pair of vertical frames 521 and 521.

Each vertical frame 521 has, for example, a C-shaped cross section that opens toward the platform 3 side (see FIG. 21 ). The board member 522 has, for example, a triangular cross section, and is joined to the upper ends of the vertical frames 521 and 521 at both ends thereof. Both ends of the first horizontal frame 523 are joined to upper end portions of the vertical frame 521 in the vertical direction Z, and both ends of the second horizontal frame 524 are intermediate portions of the vertical frame 521 in the vertical direction Z, more specifically, the center. Is joined to the upper part. The side surfaces of the vertical frame 521, the first horizontal frame 522, and the second horizontal frame 523 on the platform 3 side and the side surface on the vehicle 2 side have the same position in the thickness direction Y.

The screen members 525a and 525b are cloth members made of, for example, canvas. However, the material of the screen members 525a and 525b is not particularly limited, and sheet-shaped members other than cloth or panel-shaped members may be used as the screen members 525a and 525b. The screen members 525a, 525b have a rectangular shape, and one of the long sides or the short sides of the screen members 525a, 525b is arranged parallel to the width direction X, and either the long side or the short sides of the screen members 525a, 525b. The other one is arranged parallel to the vertical direction Z.

The screen members 525a and 525b are attached to the first door body 520 so as to extend downward from the upper edge portion of the first door body 520. The upper edge of the screen member 525 is fixed to the head member 522 that constitutes the upper edge of the first door body 520 with, for example, bolts (not shown). The lower end side of the screen member 525 is fixed to an intermediate portion of the vertical frame 521 in the vertical direction Z by, for example, a bolt or the like. The lower end of the screen member 525 is arranged below the second horizontal frame 524 and above the center of the vertical frame 521 in the vertical direction Z.

As shown in FIG. 22, when viewed in the width direction X, the screen members 525 are arranged along the edge of the first door body 520 on the platform 3 side in the thickness direction Y and the edge of the vehicle 2 side, respectively. There is. When viewed in the thickness direction Y, both ends in the width direction X of the screen member 525 are arranged so as to overlap the vertical frames 521 and 521 of the first door body 520. As a result, between the pair of vertical frames 521 and 521 of the first door body 520 and above the intermediate portion of the opening formed below the headstock member 522, the screen members 525a and 525b serve as the platform 3 side and the vehicle 2 side. It is blocked from the side.

As described above, the first door body 520 is formed in a gate shape as a whole by the vertical frames 521 and 521 and the screen member 525. The lower portion of the first door body 520 is provided with a cutout portion X1 which is formed by lower edges 525c and 525d of the screen member 525 and side surfaces 521A on the inner side in the width direction X of the pair of vertical frames 521 and 521 and which is open to the lower side. ing.

As shown in FIGS. 20 and 21, first and second sliders 526a and 526b forming a part of the second guide portion G502 are attached to each vertical frame 521 of the first door body 520. The first and second sliders 526a and 526b are fixed to, for example, welding or the like on the vehicle-side surfaces 521a and 521a in the thickness direction Y of the vertical frame 521.

The first slider 526a is located substantially at the center of the vertical frame 521 in the width direction X, and is arranged at substantially the same position as the lower end of the screen member 525 in the vertical direction Z. The second slider 526b is located substantially at the center of the vertical frame 521 corresponding to the first slider 526a in the width direction X, and is located at a position between the first slider 526a and the lower end of the vertical frame 521 in the vertical direction Z. There is.

The second door body 530 includes a pair of vertical frames 531 and 531 extending in the vertical direction Z, a first vehicle side horizontal frame 532a extending in the width direction X and connecting the pair of vertical frames 531 and 531, and a first platform side horizontal direction. A frame 532b, a second vehicle side lateral frame 533a and a second platform side lateral frame 533b are provided. The second door body 530 further includes screen members 534a and 534b that connect the pair of vertical frames 531 and 531.

Each of the vertical frames 531 has, for example, a C-shaped cross section that opens to the inside in the width direction X (see FIG. 21 ). Both ends of the first vehicle-side horizontal frame 532a are joined to a vertical wall portion 531a on the vehicle 2 side inside the vertical frame 531 in the width direction X and an upper end portion of the vertical frame 531 in the vertical direction Z. Both ends of the first platform side horizontal frame 532b are joined to the vertical wall portion 531b on the platform 3 side inside the width direction X of the vertical frame 531 and the upper end portion of the vertical frame 531 in the vertical direction Z.

Both ends of the second vehicle-side horizontal frame 533a are joined above the vertical wall portion 531a on the vehicle 2 side inside the width direction X of the vertical frame 531 and the intermediate portion of the vertical frame 531 in the vertical direction Z. Both ends of the second platform side horizontal frame 533b are joined above the vertical wall portion 531b on the platform 3 side inside the width direction X of the vertical frame 531 and the intermediate portion of the vertical frame 531 in the vertical direction Z.

The side surface 531c of the vertical frame 531 on the vehicle 2 side and the side surfaces of the first vehicle side horizontal frame 532a and the second vehicle side horizontal frame 533a on the vehicle 2 side coincide in position in the thickness direction Y. The side surface 531d of the vertical frame 531 on the platform 3 side and the side surfaces of the first platform side horizontal frame 532b and the second platform side horizontal frame 533b on the platform 2 side coincide in position in the thickness direction Y.

Like the first door body 520, the screen members 534a and 534b are cloth members made of, for example, canvas. However, the material of the screen members 534a and 534b is not particularly limited, and sheet-shaped members other than cloth or panel-shaped members may be used as the screen members 534a and 534b. The screen members 534a and 534b have a rectangular shape, and either one of the long sides or the short sides of the screen members 534a and 534b is arranged in parallel to the width direction X, and the one of the long sides or the short sides of the screen members 534a and 534b. The other one is arranged parallel to the vertical direction Z.

The screen members 534a and 534b are attached to the second door body 530 so as to extend downward from the upper edge portion of the second door body 530. The upper edges of the screen members 534a and 534b are fixed to the first vehicle-side and platform-side horizontal frames 532a and 533a that form the upper edge of the second door body 530 by, for example, bolts (not shown). .. The lower ends of the screen members 534a and 534b are fixed to the second vehicle side and platform side horizontal frames 532b and 533b by, for example, bolts.

As shown in FIGS. 20 and 22, when viewed in the width direction X, the screen members 534a and 534b extend along the edge of the second door body 530 on the platform 3 side in the thickness direction Y and the edge of the vehicle 2 side. Are arranged respectively. When viewed from the thickness direction Y, both ends of the screen members 534a and 534b in the width direction X are arranged so as to overlap the vertical frames 531 and 531 of the second door body 530. Thus, the second door body 530 is formed between the pair of vertical frames 531 and 531, the first vehicle-side and platform-side horizontal frames 532a and 532b, and the second vehicle-side and platform-side horizontal frames 533a and 533b. The openings are closed by the screen members 534a and 534b from the platform 3 side and the vehicle 2 side.

As described above, the second door body 530 is formed in a gate shape as a whole by the vertical frames 531 and 531 and the screen members 534a and 534b. The lower portion of the second door body 530 is provided with a cutout portion X2 which is formed by the lower edge portions 534c and 534d of the screen member 534 and the side surfaces of the pair of vertical frames 531 and 531 on the inner side in the width direction X and which is opened downward. There is.

In each vertical frame 531 of the second door body 530, the first and second sliders 535a and 535b forming part of the first guide portion G501 and the second rail 536 forming part of the second guide portion G502. Is attached.

The first and second sliders 535a and 523b are fixed, for example, to the surfaces 531c and 531c on the platform 3 side in the thickness direction Y of the vertical frame 531 by welding or the like.

The first slider 535a is located substantially at the center of the vertical frame 521 in the width direction X, and is arranged at a position between the second horizontal frame 533 and the lower end of the vertical frame 521 in the vertical direction Z. The second slider 535b is located substantially at the center of the vertical frame 521 in the width direction X, and is arranged at the lower end of the vertical frame 521 in the vertical direction Z.

The second rail 536 extends in the up-down direction Z from the upper end to the lower end of the vertical frame 531 and, for example, a bolt (not shown) or a bolt (not shown) on the surface of the side surface 531c on the vehicle side of the vertical frame 531 on the platform 3 side in the thickness direction Y. It is fixed by welding.

As shown in FIGS. 20 and 22, a stopper 537 is provided at the upper end of each vertical frame 531 of the second door body 530 to restrict the rise of the first door body 520. The stopper 537 is provided, for example, so as to project from the side surface of the vertical frame 511 on the vehicle 2 side toward the platform 3 side. As the stopper 537, for example, a block member having a screw hole inside is used. In this case, the block member is fixed to the vertical frame 531 with, for example, bolts.

The relationship among the first door body 520, the second door body 530, and the base frame 510 will be described with reference to FIGS.

As shown in FIGS. 21 and 22, the first and second sliders 526 a and 526 b of the first door body 520 are fitted to the second rail 536 of the second door body 530. As a result, the sliders 526a and 526b of the first door body 520 can slide on the second rails 536 of the second door body 530. The second guide portion G502 configured in this manner guides relative movement of the first door body 520 with respect to the second door body 530 in the vertical direction Z.

Further, the first slider 526a of the first door body 530 and the stopper 537 of the second door body 530 are arranged so as to overlap each other in the thickness direction Y in plan view. When the height of the first door body 520 in the vertical direction Z reaches a predetermined closed position, the first slider 526a of the first door body 520 and the stopper 537 of the second door body 530 are engaged with each other. It has become. As a result, the rise of the first door body 520 is restricted.

The first and second sliders 535 a and 535 b of the second door body 530 are engaged with the first rail 516 of the base frame 510. Accordingly, the sliders 535a and 535b of the second door body 530 can slide on the first rails 516 of the base frame 510. The first guide portion G501 configured as described above guides the relative movement of the second door body 530 with respect to the base frame 510 in the vertical direction Z.

Further, the first slider 535a of the second door body 530 and the stopper 517 of the base frame 510 are arranged to overlap each other in the thickness direction Y in plan view. When the height of the second door body 530 in the vertical direction Z reaches a predetermined position, the second slider 535a of the second door body 530 and the stopper 517 of the base frame 510 are engaged with each other. .. As a result, the rise of the second door body 530 is restricted.

In addition to the above configuration, the platform door device according to the second embodiment includes an up/down interlocking mechanism 540 for interlocking the up/down movement of the first door body 520 and the second door body 530. The elevation interlocking mechanism 540 will be described below with reference to FIGS. 20, 21, and 23.

The up-and-down interlocking mechanism 540 includes first to fourth pulleys 541a, 541b, 541c and 541d as rotating bodies, a first belt 542a and a second belt 542b as winding bodies, a first belt 542a and a first door body. A first connecting portion 543 that connects the second belt 542b and the base portion 510 to each other is provided.

The first pulley 541a and the second pulley 541b are rotatably attached to the inside of the vertical frame 531 of the second door body 530 in the width direction X via an upper support member 538. The first pulley 541a and the second pulley 541b are located at an intermediate portion of the screen member 534 in the vertical direction Z.

Specifically, the upper support member 538 extends in the width direction X of the vertical frame 531 and in the thickness direction Y of the second door body 530, and extends in the second vehicle side horizontal frame 533 a and the second door body 530 of the second door body 530. A base portion 538a having a rectangular cross section attached from below between the two platform side horizontal frames 533b, a column portion 538b rising from the upper surface of the base portion 538a, and a plate member 538c attached above the column portion 538b. ing. The column portion 538 and the plate member 538c are arranged between the screen members 534a and 534b of the second door body 530, and are supported by the second door body 530 via the base portion 538a.

The first pulley 541a is arranged on the platform 3 side with the plate member 538c interposed therebetween, and the second pulley 541b is arranged on the vehicle 2 side with the plate member 538c interposed therebetween. The first pulley 541a and the second pulley 541b are coaxially attached to each other and extend in the thickness direction Y, and rotate integrally.

The third and fourth pulleys 541c and 541d are rotatably attached to the lower end portion of the second door body 530 via a lower support member 539. Specifically, the lower support member 539 is composed of a platform-side lower support member 539a arranged on the platform 3 side and a vehicle-side lower support member 539d arranged on the vehicle 2 side.

The platform-side lower support member 539a is formed of, for example, an L-shaped member, and a flange portion 539b connected to the platform-side vertical wall portion 531a of the vertical frame 531 of the second door body 530 and the flange portion 539b. It has a width direction extending portion 539c extending in the width direction X from the end portion on the vehicle 2 side.

The vehicle-side lower support member 539d is formed of, for example, an L-shaped member, and a flange portion 539e connected to the vertical wall portion 531b of the vertical frame 531 of the second door body 530 on the vehicle 2 side, and the flange portion 539e. And a width direction extending portion 539f extending in the width direction X from the end portion on the platform 3 side.

The third pulley 541c is arranged on the platform 3 side between the widthwise extending portions 539c, 539f of the platform-side and vehicle-side lower support members 539a, 539d. The fourth pulley 541d is arranged on the vehicle 2 side between the width direction extending portions 539c and 539f of the platform-side and vehicle-side lower support members 539a and 539d. The third pulley 541c and the fourth pulley 541d are coaxially attached to extend in the thickness direction Y, and are configured to rotate integrally.

As shown in FIG. 23, the first pulley 541a and the third pulley 541c are arranged so as to coincide in the thickness direction Y, and the first pulley 541a and the third pulley 541c have the same diameter. .. The second pulley 541b and the fourth pulley 541d are arranged so as to coincide with each other in the thickness direction Y, and the second pulley 541b and the fourth pulley 541d have the same diameter. The diameters of the first pulley 541a and the third pulley 541c are formed smaller than the diameters of the second pulley 541b and the fourth pulley 541d.

The first belt 542a is wound around the first pulley 541a and the third pulley 541c, and the second belt 542b is wound around the second pulley 541b and the fourth pulley 541d. Accordingly, the first to fourth pulleys 541a, 541b, 541c, 541d always rotate in conjunction with each other. The first pulley 541a and the second pulley 541b rotate at equal angular velocities, but the second pulley 541b rotates at a peripheral speed larger than that of the first pulley 541a having a smaller diameter than this. Similarly, the fourth pulley 541d also rotates at a higher peripheral speed than that of the third pulley 541c having a small diameter. Therefore, the peripheral speed of the second belt 542b is always higher than the peripheral speed of the first belt 542a.

As shown in FIGS. 20 and 23, the first connecting portion 543 includes, for example, a block member 543a fixed to the inner side in the width direction X at the lower end portion of the vertical frame 521 of the first door body 520, and the block member 543a. And a plate member 543b arranged on the inner surface in the width direction X. The first belt 542a is fixed to these members 543a and 543b while being sandwiched between the block member 543a and the plate member 543b. In this way, the first connecting portion 543 connects the first door body 520 and the first belt 542a. As a result, the first door body 520 is fixed to one side portion outside the width direction X of the pair of linear portions extending in the vertical direction Z of the first belt 542a via the first connecting portion 543. ..

The second connecting portion 544 is disposed in the vertical Z intermediate portion of the base frame 510 and inside the width direction X from the first to fourth pulleys 541a, 541b, 541c, 541d. The second connecting portion 544 is provided with, for example, a column member 544a that extends from the base frame 510 and extends in the vertical direction, and an L-shaped plate member 544b having a flange portion 544c connected to the upper end of the column member 544a. .. The second belt 542b includes an upper extending portion 544d that rises upward from an outer edge in the width direction X of the flange portion 544c of the plate member 544b, and a plate member disposed on the outer surface in the width direction X of the upper extending portion 544d. It is fixed to these members 544b and 544e while being sandwiched between it and 544e. In this way, the second connecting portion 544 connects the base frame 510 and the second belt 542b. Accordingly, the base frame 510 is fixed to the other side portion, which is on the inner side in the width direction X, of the pair of linear portions extending in the vertical direction Z of the second belt 542b via the second connecting portion 544.

As described above, the first connecting portion 543 is fixed to the outer side in the width direction X of the first belt 542a, and the second connecting portion 544 is fixed to the inner side in the width direction X of the second belt 542b. Further, the first pulley 541a on which the first belt 542a is wound and the second pulley 541b on which the second belt 542b is wound are provided coaxially and integrally rotate, so that the first belt 542a The third pulley 541c wound around and the fourth pulley 541d wound around the second belt 542b are provided coaxially and rotate integrally. Therefore, for example, when the first connecting portion 543 moves upward, the second connecting portion 544 moves downward.

As shown in FIG. 19, the shelter door unit 600 includes a base frame 510 as a support for supporting the door 10, a first door body 520 and a second door body 530 constituting the door 10, and a first door body. 520 and an up-and-down interlocking mechanism 540 that interlocks the up-and-down movement of the second door body 530. Since these configurations are the same as those of the driven door unit 500, the description thereof will be omitted.

The first door body 520 of the shelter door unit 600 shown in FIG. 19 is connected to the first door bodies 520 of the adjacent driven door units 500 on both sides in the width direction X, respectively. Accordingly, the lifting and lowering of the first door body 520 and the second door body 530 of the shelter door unit 600 is performed in conjunction with the lifting and lowering of the first door body 520 and the second door body 530 of the driven door unit 500. .. Note that the specific configuration of the connection between the evacuation door unit 600 and the driven door unit 500 is the same as that of the first embodiment, and therefore illustration and description thereof are omitted.

The retractable door unit 600 is also provided with a lid portion 118 similar to that of the driven door unit 500, so that the lid portion 118 can be opened and closed according to the elevation of the first door body 520 and the second door body 530. It has become.

Next, the operation and action of the platform door device according to this embodiment will be described with reference to FIGS. 24 to 26.

As shown in FIG. 24, when the vehicle 2 stops after entering the platform 3 of the station and passengers get on and off, the door 10 of the platform door apparatus 1 is opened (see FIG. 1). In the open state of the door 10, the first door body 520 and the second door body 530 are located below the upper surface 33 of the floor portion 31 of the platform 3 and are housed inside the base frame 510 (open position P2). ..

In the opened door unit 500 for driving shown in FIG. 25, the first door body 520 and the second door body 530 have a pair of vertical frames 521, 521, 531 and 531 with respect to the drive mechanism 300 and the support member 115. By being arranged outside the width direction X, the interference with the drive mechanism 300 and the support member 115 is avoided.

Further, cutout portions X1 and X2 are provided in the lower portions of the first door body 520 and the second door body 530, and the upper edge portions of the cutout portions X1 and X2 (screen members 525a, 525b, 534a, 534b) are formed. Since the lower end portions 525c, 534c (525d, 534d) are located above the drive mechanism 300 in the open state, interference with the drive mechanism 300 is avoided. Therefore, in the open state (open position P2) of the door 10, the first door body 520 and the second door body 530 are housed in the base frame 510 without interfering with the drive mechanism 300 and the support member 115. In the escape door unit 600 in which the driving mechanism 300 and the supporting member 115 are not provided, the first door body 520 and the second door body 530 are also housed in the base frame 510 without interfering with other members. (See FIG. 26).

Since the entire platform door device 1 is stored under the upper surface 33 of the floor portion 31 of the platform 3 when the door 10 is opened and closed, there is no projecting portion on the platform 3 and there is no passage space on the platform 3. It is possible to increase the number of passengers and facilitate getting on and off. Further, the lid portion 118 functions as a step of closing the space between the platform 3 and the entrance/exit 21 of the vehicle 2 when getting on and off, as in the first embodiment.

As shown in FIGS. 24 and 26, in the opening operation of the door 10, the first door body 520 of the driven door unit 500 is lowered by the drive mechanism 300, and the first door body 520 of the evacuation door unit 600 is , The first door body 520 of the driven door unit 500 is lowered in conjunction with the lowering. In addition, at this time, in each of the driven door unit 500 and the shelter door unit 600, the second door body 530 is lowered by the ascending/descending interlocking mechanism 540 in conjunction with the first door body 520.

In the open state where the first door body 520 and the second door body 530 of the escape door unit 600 are completely lowered, the upper ends of the cutout portions X1 and X2 of the first door body 520 and the second door body 530 are rail-laid. It is arranged at a predetermined height above the surface 4 with a space therebetween.

In the open state, the screen members 5251 and 525d of the screen members 5251 and 525b forming the upper edge portion of the cutout portion X1 of the first door body 520 and the upper edge portion of the cutout portion X2 of the second door body 530. The lower ends 534c and 534d of 534a and 534b are provided at the same position in the vertical direction Z.

An edge portion 511A on the widthwise X inner side of the vertical frame 511 of the base frame 510 is an inner edge portion 521a of the vertical frame 521 which constitutes an edge portion on the widthwise X inner side of the cutout portion X1 of the first door body 520, and The two-door body 530 is arranged on the inner side in the width direction X with respect to the inner edge portion 531a of the vertical frame 531 forming the edge portion on the inner side in the width direction X of the cutout portion X2.

In the open state, the cutout portions X1 and X2 of the first door body 520 and the second door body 530, the edge portion 511A on the inner side in the width direction X of the vertical frame 511 of the base frame 510, and the rail installation surface 4 or the base frame 510. An evacuation opening O for opening the evacuation space S to the vehicle 2 side is formed between the evacuation space S and the third lateral frame 514. In the present embodiment, the escape opening O is an area where the cutout portions X1 and X2 of the first door body 520 and the second door body 530 overlap each other when viewed in the thickness direction Y.

As a result, even if the person who has fallen from the platform 3 to the rail laying surface 4 is in a state in which the door 10 is lowered to the lower side of the platform 3, the first door body 520 and the second door body 520 of the shelter door unit 600 are prevented. Through the opening O of the body 530, it is possible to smoothly move to the shelter space S.

When the entrance/exit 21 of the vehicle 2 is closed after the passengers have finished getting on/off the door 10 in the open state, the door 10 of the platform door apparatus 1 is driven to rise to the closed position P2.

At this time, in the drive mechanism 300 of the driven door unit 500, the lower surface of the second horizontal frame 524 of the first door body 520 is pushed up by the zip chain and the first door body 520 is lifted as in the first embodiment. Start. At this time, the first door body 520 pushes up the lid portion 118 on the upper surface of the headstock member 522, and ascends while rotating so as to displace the free end 118c side to the platform 3 side.

At this time, in the ascending/descending interlocking mechanism 540 of the driven door unit 500 and the shelter door unit 600, the first connecting portion 543 starts to move upward together with the first door body 520, and at the same time, the second The connecting portion 544 starts moving downward. Accordingly, the relative lowering of the base frame 510 with respect to the second door body 530, that is, the raising of the second door body 530 is started at the same time as the raising of the first door body 520.

Further, at this time, the relative movement of the second door body 530 with respect to the base frame 510 in the up-down direction Z is guided by the first guide portion G501 and the second guide portion G502, and the first door body with respect to the second door body 530 is guided. The relative movement of 520 in the vertical direction Z is guided. As a result, a smooth raising operation of the first door body 520 and the second door body 530 is realized.

When the first door body 520 and the second door body 530 rise, the overlap portion of the first door body 520 with respect to the second door body 530 in the vertical direction Z decreases, and the second door body 530 with respect to the base frame 510 rises and falls. The overlap in direction Z is reduced.

In addition, at this time, as described below, the ascending/descending interlocking mechanism 540 makes the relative rising speed of the first door body 520 to the second door body 530 faster than the relative rising speed of the second door body 530 to the base frame 510. Is set.

Finally, as shown in FIGS. 20 and 23, only the lower end portions 525c and 525d of the screen members 525a and 525b of the first door body 520 and the first horizontal frames 532a and 532b of the second door body 530 are overloaded. In the wrapping state, the lower end portions 534c and 534d of the screen members 534a and 534b of the second door body 530 are located above the upper end of the base frame 510 and the upper surface 33 of the floor portion 31 of the platform 3.

In the state where the first door body 520 is raised to the closed position P1, the first door body 520 and the second door body 530 are arranged in this order from the upper side in this order in the vertical direction Z. The gap g between the lower end of the screen member 534 of the second door body 530 and the upper surface 33 of the floor 31 is closed from the platform 3 side by the lid 118 described above.

Accordingly, in the closed state, the entire height from the upper surface 33 of the floor portion 31 to the upper end portion of the first door body 520 is closed by the plurality of screen members 525, 534 and the lid portion 118, and the platform is closed. The fall prevention from 3 can be surely achieved.

Here, with reference to FIG. 27, the interlocking operation of the raising and lowering of the first door body 520 and the second door body 530 by the lifting interlocking mechanism 540 will be described. Note that FIG. 27 shows (a) the open state and (b) the closed state of the platform door device.

When the first door body 520 rises from the open state shown in FIG. 27A, the first connecting portion 543 connected to the first door body 520 is moved along with the rise of the first door body 520. It rises as shown by arrow L1. At this time, since the first belt 542a connected to the first connecting portion 543 moves upward, the first and third pulleys 541a and 541c rotate, and the second and fourth pulleys 541c and 541d rotate. Along with this, the second connecting portion 544 of the second belt 542b wound around the second and fourth pulleys 541c and 541d moves downward relative to the second door body 530 as shown by an arrow L2. To do.

Since the second connecting portion 544 is connected to the base frame 510 and does not move up and down, the second door body 530 rises with respect to the base frame 510. At this time, since the amount of upward movement of the second door body 530 is the same as the amount of movement of the first to fourth pulleys 541a, 541b, 541c, 541d, the second connecting portion 544 in the closed state shown in FIG. It is half the amount of downward movement relative to the second door body 530. Therefore, if the peripheral speed of the first belt 542a and the peripheral speed of the second belt 542b are equal, the first door body 520 rises at twice the speed of the second door body 530. As a result, the first door body 520 and the second door body 530 are always raised in parallel, and finally the first door body 520 is raised to a predetermined position above the second door body 530. Can be made.

As described above, in this embodiment, the peripheral speed of the first belt 542a is lower than the peripheral speed of the second belt 542b. Accordingly, the upward movement amount of the first connecting portion 543 connected to the first belt 542a is smaller than the downward movement amount of the second connecting member 544 connected to the second belt 542b. Therefore, the rising speed of the first door body 520 is slightly lower than twice the rising speed of the second door body 530.

As shown in FIG. 22, when the first door body 520 and the second door body 530 reach a predetermined closed position P1, the first slider 526a of the first door body 520 engages with the stopper 537 of the second door body 530. Therefore, relative movement of the first door body 520 with respect to the second door body 530 is prevented. Further, the first slider 535a of the second door body 530 is engaged with the stopper 517 of the base frame 510, and the relative movement of the second door body 530 with respect to the base frame 510 is blocked. As a result, the rise of the door 10 that exceeds the predetermined height is reliably regulated.

Further, in the closing operation, the first door body 520 of the escape door unit 600 rises while being supported by the pair of driven door units 500 from both sides in the width direction X. Therefore, even in the evacuation door unit 600 in which the drive mechanism 300 is not mounted, the first door body 520 and the second door body 530 can be smoothly raised.

When lowering the door 10 located at the closed position P1, the drive mechanism 300 may lower the first door body 520 of the driven door unit 500. At this time, in the driven door unit 500, the second door body 530 is lowered by the lifting/lowering interlocking mechanism 540 at a speed slower than the lowering speed of the first door body 520. Also in the shelter door unit 600, when the first door body 520 of the shelter door unit 600 descends in conjunction with the first door body 520 of the driven door unit 500, the second door body 530 has the ascending/descending interlocking mechanism. Due to 540, the first door body 520 descends at a slower speed than the descending speed.

As a result, the first door body, which has risen to a closed position higher than the second door body, and the second door body are simultaneously lowered, and the movement of the door 10 from the closed state to the open state is shortened. Can be completed in time.

In the present embodiment, the upper edge portions of the cutout portions X1 and X2 for retracting are arranged at a position higher than the center of the first door body 520 and the second door body 530 in the vertical direction Z. As a result, in the open state, the escape opening O can be widely secured in the vertical direction Z.

On the other hand, in the closed state, since the notch X1 formed wider than the lower half of the first door body 520 needs to be closed by the second door body 530, it is higher than the vertical Z center of the first door body 520. It is necessary to raise the upper edge of the second door body 530 to the position. In the present embodiment, as described above, the second door body 530 is lifted at a rising speed that is greater than half the rising speed of the first door body 520, so that the cutout portion X1 of the first door body 520 becomes the second. The door body 530 is closed.

In the closed state, the upper edge portion of the cutout portion X2 of the second door body 530 is arranged above the upper surface 33 of the floor portion 31 of the platform 3, but the cutout portion X2 is closed by the lid portion 118. Be done. Therefore, in the closed state, it is possible to avoid the formation of openings in the cutout portions X1 and X2 of the first door body 520 and the second door body 530.

The difference in the ascending speed between the first door body 520 and the second door body 530 can be adjusted by setting the difference in diameter between the first and third pulleys 541a and 541c and the second and fourth pulleys 541b and 541d. Is. The difference between the diameters is that when the first door body 520 rises to the closed position, the upper end of the cutout portion X1 of the first door body 520 (the lower end of the screen member 525) and the upper end portion of the second door body 530 ( The first horizontal frames 532a, 532b) may be set so as to overlap in the vertical direction Z.

Further, in the present invention, various changes can be made to the configuration of the driven door unit. For example, the driven door unit may include an assist mechanism that assists the drive mechanism 300 in raising the driven door body 120. Hereinafter, the assist mechanism 710 of the driven door unit 700 according to the first modification shown in FIG. 28, the assist mechanism 810 of the driven door unit 800 according to the second modification shown in FIG. 29, and FIG. The assist mechanism 910 of the driven door unit 900 according to the third modification will be described.

As shown in FIG. 28, the driven door unit 700 according to the first modified example includes a first door body 520, a second door body 530, which form a part of the door 10, as in the above-described embodiment. In addition to the base frame 510, the drive mechanism 300 that raises and lowers the first door body 520, and the lift interlocking mechanism 540 that interlocks the first door body 520 and the second door body 530, an assist mechanism that assists the drive mechanism 300. 710 is provided.

The basic configurations of the first door body 520, the second door body 530, the base frame 510, the drive mechanism 300, and the lift interlocking mechanism 540 are the same as those of the driven door unit 500 according to the second embodiment described above. Therefore, in FIG. 28, the illustration thereof is omitted or simplified, and the description thereof is omitted.

The assist mechanism 710 includes an elastic body 720 that contracts as the second door body 530 descends and expands as the second door body 530 rises, and a restoring force of the elastic body 720 as the second door body 530. And a restoring force transmission mechanism 730 that transmits the restoring force to 530.

The elastic body 720 includes a mainspring spring 721, a case member 722 which fixes one end portion of the mainspring spring 721 and accommodates the mainspring spring 721, and a shaft member 723 which is connected to the other end portion of the mainspring spring 721. There is. The case member 722 is fixed to the third horizontal frame 514 inside the vertical frame 511 of the base frame 510 in the width direction X. The shaft member 723 rotates in association with the contraction and extension of the mainspring 721.

The restoring force transmission mechanism 730 connects the pair of assisting pulleys 731 and 732, the assisting belt 733 wound around the pair of assisting pulleys 731 and 732, the assisting belt 733, and the second door body 530. And an assisting connection portion 734.

The pair of assisting pulleys 731 and 732 are arranged vertically apart from each other, and their axes extend in the thickness direction Y. Of the pair of assisting pulleys 731 and 732, the assisting pulley 731 arranged above is rotatably fixed to the second horizontal frame 513 of the base frame 510 via a flange member 731a and the like. The assisting pulley 732 arranged below is fixed so as to be integrally rotatable with a shaft member 723 connected to the other end of the mainspring 721.

The second door body 530 has a pillar member 528 for connecting the assisting connection portion 734 and the second door body 530. The pillar member 528 is arranged inside the vertical frame 531 of the second door body 530 in the width direction X so as to extend downward from the lower surface of the second platform side horizontal frame 533b.

As shown in the enlarged view of the arrow L of FIG. 28, the assisting connecting portion 734 includes an extension member 734a connected to extend from the lower end of the column member 528 to the platform 3 side, and a width direction of the extension member member 734a. And a plate member 734b arranged inside X.

A portion outside the width direction X of the assist belt 733 wound around the assist pulleys 731 and 732 is sandwiched between the extension member 724a of the assist connecting portion 724 and the plate member 724b, so that the second door body is formed. 530 is connected to the assisting belt 733 via the assisting connecting portion 734.

In the open state of the first door body 520 and the second door body 530, the assist connecting portion 734 is arranged on the assist pulley 722 side located below, and in the closed state, the assist connecting portion 734 is located above. It is arranged on the assisting pulley 721 side.

In the above configuration, first, the first door body 520 and the second door body 530 in the open state are maintained in the state of being lowered to the open position P2 due to their own weight. At this time, since the assisting connecting portion 734 descends from the upper limit position to the lower limit position, the assisting belt 733 connected to the assisting connecting portion 734 causes the assisting pulleys 731 and 732 to rotate. Along with this, since the shaft member 723 rotates integrally, the mainspring spring 721 rotates in the winding direction R1, so that the mainspring spring 721 is in a contracted state.

When the first door body 520 and the second door body 530 are raised to the closed position P1, the drive device 300 lifts the first door body 520 and the second door body 530 upward against their own weight. At this time, the mainspring spring 721 rotates in the extension direction R2 due to the restoring force of the mainspring spring 721 held in the contracted state, so that the shaft member 723 and the assisting pulley 732 rotate. Therefore, the assist connecting portion 734 connected to the assist belt 733 is pushed up from the lower limit position to the upper limit position.

Accordingly, the rotational force obtained from the restoring force of the elastic portion 720 is directed upward without changing the second door body 530 in the width direction X via the pillar member 528 connected to the assisting connecting portion 734. The assist force may be transmitted to the second door body 530. As described above, in the assist mechanism 710, when the first door body 520 and the second door body 530 are raised, the restoring force generated in the elastic portion 720 acts upward as an assist force on the second door body 530. The raising operation of the first door body 520 and the second door body 530 by the drive mechanism 300 is assisted. Therefore, the power source can be downsized, which increases the layout flexibility of the drive mechanism 300.

In addition, in the first modification, an example in which the assist mechanism 810 is applied to the driven door unit 500 in the second embodiment has been described, but it may be applied to the driven door unit 100 in the first embodiment.

Next, the assist mechanism 810 of the driven door unit 800 according to the second modification will be described with reference to FIG. In the second modified example, the assist mechanism 810 using the elastic body 820 is adopted as in the first modified example.

As shown in FIG. 29, the driven door unit 500 according to the second modification includes a driven door body 120 that forms a part of the door 10 and the driven door unit 500 that is similar to the first embodiment. In addition to the base frame 110 that supports the door body 120, the drive mechanism 300 that raises and lowers the driven door body 120, and the guide mechanism G1 that guides the raising and lowering of the driven door body 120, the drive mechanism 300 is assisted. The assist mechanism 810 is provided.

The basic structure of the driven door body 120, the base frame 110, the drive mechanism 300, and the guide mechanism G1 is the same as that of the driven door unit 100 according to the above-described embodiment. Illustration is omitted or simplified, and description is omitted.

The assist mechanism 810 is supported by the base frame 110 via a support member 801. The support member 801 includes a pedestal portion 802 that supports an elastic portion 820 of the assist mechanism 810, which will be described later, and a column portion 803 that supports an arm portion 831 of the assist mechanism 810, which will be described later. The pedestal portion 802 has, for example, a trapezoidal shape having an upper surface inclined outward in the width direction X in a front view. The column portion 803 is formed of a long member that extends in the vertical direction Z.

The column portion 803 is arranged so as to overlap the outer end portion of the pedestal portion 802 in the width direction X. The lower end of the column portion 803 is attached to the pedestal portion 802 with a bolt or the like (not shown). A support portion 513 that rotatably supports an arm portion 831 described below is provided at the upper end portion of the column portion 803.

The assist mechanism 810 includes an elastic portion 820 that contracts as the driven door body 120 descends and extends as the driven door body 120 rises, and a restoring force of the elastic portion 820 that drives the driven door body 120. The restoring force transmitting unit 830 that transmits the restoring force to the body 120.

The elastic portion 820 extends, for example, between a plurality of springs 821...821, an upper plate member 822 and a lower plate member 823 that sandwich the plurality of springs 821...821 from the vertical direction Z, and an upper plate member 822 and a lower plate member 823. It also has a plurality of shafts 824... 824 inserted through the centers of the plurality of springs 821.

The upper plate member 822 and the lower plate member 823 are arranged parallel to the upper surface of the pedestal portion 802. The lower plate member 823 is fixed to the pedestal portion 802 via, for example, the connecting members 823a and 823a, and the upper plate member 822 is connected to the lower plate member 823 via the plurality of springs 821...821.

The plurality of springs 821... 821 are arranged between the upper plate member 822 and the lower plate member 823 so as to be orthogonal to the upper surface of the lower plate member 823, that is, to extend obliquely upward toward the outer side in the width direction X. It is arranged. The upper end of the shaft 824 inserted into each spring 821 is fixed to the upper plate member 822, and the lower end portion of the shaft 824 penetrates the lower plate member 823. The lower end of each shaft 824 is provided with a retaining portion 824a that prevents the lower plate member 823 from coming off upward.

The restoring force transmitting portion 830 receives the restoring force of the arm portion 831 formed of a long plate member, the rail member 832 attached to the lower end portion of the driven door body 120, and the restoring force of the spring 821 of the elastic portion 820. A portion 834, a rotary shaft 831a provided at the base end portion of the arm portion 831, and a slider 833 rotatably attached to the distal end portion of the arm portion 831 and fitted to the rail member 832 are provided.

The rotation shaft 831a of the arm portion 831 is arranged so as to extend in the thickness direction Y on the outer side in the width direction X, and is rotatably supported by the upper end portion of the column portion 803 of the support member 801.

The input portion 834 is provided so as to project in the thickness direction Y from a position offset from the rotation shaft 831a of the arm portion 831 toward the center in the length direction. The input portion 834 is arranged so as to contact the upper surface of the upper side plate member 822 of the elastic portion 820. As the input unit 834, for example, a roller rotatably supported by the arm unit 831 is used. Accordingly, it is possible to reduce the frictional resistance generated between the input portion 834 and the upper side plate member 822.

The slider 833 is attached to the tip of the arm portion 831 so as to be rotatable around an axis extending in the thickness direction Y. The slider 833 is composed of a rolling element such as a pulley. In the width direction X, the slider 833 is arranged substantially in the center of the driven door body 120 in the open state, and is arranged closer to the column 803 side than the center of the driven door body 120 in the closed state.

The rail member 832 has a C-shaped cross section that extends in the width direction X and is open to the vehicle 2 side in the thickness direction Y in a side view, and the side surface of the rail member 832 on the vehicle 2 side is covered with, for example, a bolt (not shown). It is fixed to the lower end of the drive door body 120. In the opened state of the driven door body 120, the slider 833 is arranged at the end of the rail member 832 on the side in the width direction X opposite to the column portion 803, and in the closed state of the driven door body 120, the slider 833 moves the rail member 832. Is arranged at the end on the side of the column 803 opposite to the width direction X.

In the above configuration, first, the driven door body 120 in the open state is maintained in the state of being lowered to the open position P2 by its own weight. At this time, since the tip end of the arm portion 831 and the input portion 834 are arranged at the positions lowered to the respective lower limit positions together with the driven door body 120, the upper plate member 822 of the elastic portion 820 is moved downward by the input portion 834. Is pressed by. As the upper plate member 822 descends, each spring 821 is compressed between the upper plate member 822 and the lower plate member 823.

When the driven door body 120 is lifted to the closed position P1, the driving mechanism 300 lifts the driven door body 120 upward against its own weight. At this time, each spring 821 expands by the restoring force of each spring 821 held in the compressed state, and pushes the upper side plate member 822 upward. Then, as the upper plate member 822 moves upward, the input portion 834 that is in contact with the upper surface thereof is pushed upward.

As a result, the arm portion 831 rotates about the rotation shaft 831a so as to move the tip portion thereof upward. As a result, the slider 833 provided at the tip of the arm portion 831 moves up along the rail member 832 while moving in the width direction X, so that the driven door body 120 is not displaced in the width direction X. The upward reaction force obtained from the restoring force of the elastic portion 820 may be transmitted to the driven door body 120 via the reaction force transmission portion 320.

As described above, the assist mechanism 810 causes the restoring force generated in the elastic portion 820 to act upward as a reaction force on the driven door body 120 when the driven door body 120 is raised. The ascending operation of the driven door body 120 is assisted. Therefore, the power source can be downsized, which increases the layout flexibility of the drive mechanism 300.

In the assist mechanism 810 of the second modification, an example in which a plurality of springs are used as the elastic body has been described, but the elastic body contracts in conjunction with the descent of the driven door body 120, and the driven body is driven. It suffices that it is connected to the driven door body 120 so as to extend in association with the rise of the driving door body 120, and rubber or the like may be used, for example.

Next, the assist mechanism 910 of the driven door unit 900 according to the third modified example will be described with reference to FIG. In the third modification, an assist mechanism 910 using a weight is adopted.

As shown in FIG. 30, a driven door unit 900 according to the third modified example is similar to the first modified example described above, and a driven door body 120 forming a part of the door 10 and the driven door body 120. In addition to the base frame 110 that supports the driving door body 120, the driving mechanism 300 that raises and lowers the driven door body 120, and the guide mechanism G1 that guides the raising and lowering of the driven door body 120, the driving mechanism 300 is assisted. The assist mechanism 910 is provided.

Since the basic configurations of the base frame 110, the driven door body 120, the drive mechanism 300, and the guide mechanism G1 are the same as those in the above-described first embodiment, their illustration is omitted or simplified in FIG. At the same time, the description is omitted.

The assist mechanism 900 in the third modified example is supported by the base frame 110 via a support member 901. The support member 901 is formed of a columnar member that extends below the upper surface 33 of the floor portion 31 of the platform 3 in the up-down direction Z, and is arranged at the center position in the width direction X of the base frame 110. The support member 901 may also be used as the support member 115 that supports the drive mechanism 300.

The driven door body 120 is provided with a connecting portion 930 for connecting the assist mechanism 910. The connecting portion 930 is composed of, for example, a pair of groove portions 125a and 125a extending in the width direction X provided in, for example, the second horizontal frame 125 (see FIG. 3) at the lower end portion of the driven door body 120. The pair of groove portions 125a and 125a are provided at positions symmetrical with each other with the center of the driven door body 120 interposed therebetween in the width direction X.

The assist mechanism 910 includes a weight member 920 and, for example, two link members 930 and 930 as a weight transmission means for connecting the weight member 920 and the driven door body 120.

The weight member 920 is, for example, a rectangular block body extending in the width direction X when viewed from the front, and is formed to be lighter than the driven door body 120. The weight member 920 is arranged such that the center in the width direction X thereof coincides with the center of the driven door body 120. The weight member 920 is arranged, for example, closer to the platform 3 than the driven door body 120 and the drive mechanism 300 in the thickness direction Y.

The weight member 920 is formed with a pair of groove portions 921, 921 extending in the width direction X. The pair of groove portions 921, 921 are provided at positions symmetrical with each other with the center of the weight member 920 sandwiched in the width direction X. The weight member 920 is formed, for example, in the thickness direction Y to be shorter than the groove portion 125a of the driven door body 120, and is arranged to be offset inward in the width direction X with respect to the groove portion 125a.

The pair of link members 930 and 820 are long members rotatably supported by the support member 901 via a rotary shaft 931 extending in the thickness direction Y. The pair of link members 930, 930 are arranged so as to intersect with each other at the position of the rotation shaft 931 in a front view. The rotating shaft 931 is arranged at a position that coincides with the center of the weight member 920 in the width direction X. In the length direction of the link member 930, the rotary shaft 931 is arranged offset from the center of the link member 930.

A first connecting shaft 930a extending in the thickness direction Y is provided at one end of each link member 930. The first connecting shaft 930a is formed of, for example, a pin member fixed to the link member 930, and is slidably engaged with the groove portion 921 of the weight member 920.

A second connecting shaft 930b extending in the thickness direction Y is provided at the other end of each link member 930. The second connecting shaft 930b is, for example, a pin member fixed to the link member 930, and slidably engaged with the groove 125a of the driven door body 120.

In the length direction of each link member 930, the distance from the rotating shaft 931 to the second connecting shaft 930b is longer than the distance from the rotating shaft 931 to the first connecting shaft 930a. Accordingly, when the link member 930 rotates about the rotation shaft 931, the movement distance in the circumferential direction of the second connection shaft 930b becomes longer than that of the first connection shaft 930a.

In the above configuration, first, as shown by the solid line in FIG. 20, the driven door body 120 in the open state is lowered to the open position P2 by the weight of the driven door body 120 heavier than the weight member 920. The state is maintained. At this time, in each link member 930 that connects the weight member 920 to the driven door body 120, the second connecting shaft 930b on the driven door body 120 side is disposed below the rotation shaft 931 and the weight member 920 is provided. The first connecting shaft 930a on the side is arranged above the rotating shaft 931. Accordingly, when the driven door body 120 is in the open state (open position P2), the weight member 920 is located above the rotation shaft 931.

The downward force input to the first connecting shaft 930a by the weight of the weight member 920 is inverted upward via the link member 930 and acts on the second connecting shaft 930b. However, since the upward force acting on the second connecting shaft 930b is smaller than the downward force due to the own weight of the driven door body 120, the second connecting shaft 930b is lowered and is stationary. The rising of 930b and the lowering of the first connecting shaft 930a and the weight member 920 are restricted.

As shown by the chain double-dashed line in FIG. 30, when the driven door body 120 is lifted to the closed position P1 against its own weight by the drive mechanism 300 (see FIG. 3), the second link member 930 The connecting shaft 930b slides inward in the width direction X along the groove 125a of the driven door body 120 and rises together with the driven door body 120. On the other hand, each link member 930 first connecting shaft 930 a slides inward in the width direction X along the groove 921 of the weight member 920 and descends together with the weight member 920.

At this time, the upward force generated in the second connecting shafts 930b and 930b by the weight of the weight member 920 is transmitted to the driven door body 120 from the pair of link members 930, so that the driven door body 120 is driven. Can assist in the ascent.

When the link member 930 is rotated with the rise of the driven door body 120, the first connecting shaft 930a is with respect to the weight member 920, and the second connecting shaft 930b is with respect to the driven door body 120. It is possible to assist the lift of the driven door body 120 while suppressing the displacement of the driven door body 120 and the weight member 920 in the width direction X in the respective fields that relatively move in the width direction X.

Since the above-described operation of the assist mechanism 910 assists the driving mechanism 300 to raise the driven door body 120, the motor 310 of the drive mechanism 300 can be downsized, whereby the layout of the drive mechanism 300 can be reduced. The degree of freedom increases.

In addition, in the assist mechanism 910 in the third modified example shown in FIG. 30, the weight member 920 is connected to the driven door body 120 via the two link members 930, 930, but the link used for the connection. The number of members may be one or three or more.

In the above, a modification of the escape door unit as shown in FIGS. 15 to 18, a first modification of the driven door unit as shown in FIG. 28, and a first modified example of the driven door unit as shown in FIG. 29. The second modified example and the third modified example of the driven door unit as shown in FIG. 30 have been described. However, in the platform door apparatus according to the present invention, various other modifications are possible within the scope of the invention. Can be changed.

For example, in the above-described embodiment, an example in which the door 10 is composed of three door bodies (two driven door bodies and one evacuation door body) has been described. The number of bodies may be one or four or more.

For example, when the door is formed by one door body, a part of the door body in the width direction X is set as a driven portion driven by the driving mechanism, and is displaced in the width direction X from the driven portion. By providing the shelter portion in the area, the shelter space can be opened to the vehicle side through the shelter portion of the open door.

On the other hand, even when the door is configured with four or more door bodies, by constructing at least one door body with the shelter door body, shelter can be performed through the opening of the shelter door body. In this case, since the connecting means is provided between all the adjacent door bodies, it is possible to raise and lower all the door bodies in conjunction with each other by one or more drive mechanisms. Further, in this case, the driven door body and the shelter door body are alternately arranged side by side in the width direction X, so that the door can be moved up and down while being supported by the adjacent driven door body. it can.

Further, the configuration of the guide mechanism in the present invention is not limited to the guide mechanism described in the above embodiment, and various modifications can be made. For example, as the guide mechanism, a mechanism such as a linear guide other than a mechanism using the rolling elements and the rail unit may be used.

Furthermore, although the configuration of one platform door device 1 has been described in the above-described embodiment and modification, a plurality of platform door devices 1 may be arranged side by side in the width direction X. In this case, the components of the support such as the base frame 110 that supports the door 10 may be shared between the adjacent platform door devices 1.

Further, the configuration of the drive mechanism in the present invention is not limited to the drive mechanism described in the above embodiment, and various modifications can be made. For example, as the drive mechanism, a mechanism other than the mechanism using the zip chain mechanism, such as a rack and pinion or a belt drive, may be used.

Further, in the above-described embodiments and modifications, the platform door device installed on the platform for the railway vehicle has been described, but the present invention is installed on the platform for various transportation systems other than the railway, such as a monorail and a ropeway. It is also applicable to the platform door device.

INDUSTRIAL APPLICABILITY As described above, the present invention may be suitably used in the manufacturing industry field of the platform door device provided on the platform at a position corresponding to the entrance/exit of passenger transportation equipment such as a railway vehicle.

1 Platform door device 2 Vehicle (passenger transportation equipment)
3 Platform 4 Rail laying surface (road surface)
10 door 21 entrance/exit 31 floor 32 edge 100, 500, 700, 800, 900 driven door unit (driven part)
215, 216 Upper fixing means, lower fixing means (fixing means)
129, 217 Connection member (interlocking device)
200, 400, 600 Evacuation door unit (evacuation part)
211 Lifting frame (lifting frame part)
220 screen member (curtain)
300 drive mechanism (zip chain mechanism)
301 Zip Chain 310 Motor 415 Fixed Panel 420, 430 First Slide Panel, Second Slide Panel (Slide Panel)
450 Descent control part, opening forming means 510 Base frame (base part)
520 First door body 530 Second door body 540 Lift interlocking mechanism 541a, 541b, 541c, 541d First to fourth pulleys (rotating bodies)
542a, 542b First belt, second belt (rolled body)
543 First connecting portion 544 Second connecting portion 710, 810, 910 Assist mechanism 721, 821...821 Spring spring, spring (elastic body)
920 Weight member (weight)
930 link member (self-weight transmission means)
G guide mechanism P1 closed position P2 open position S retreat spaces S1, S2, O openings 215, 216, 221 fixing means, folding section (opening means)
X1, X2 Notch

Claims (9)

In a platform having a floor portion arranged above the road surface through a refuge space, a platform door device provided at a position corresponding to the full length of the passenger transportation equipment stopped on the road surface or the entrance/exit,
An elevating door arranged along the edge of the floor,
At least a pair of guide mechanisms that are arranged between the road surface and the upper surface of the floor section and that guide the up and down movement of the door from at least both widthwise sides of the door,
The door is raised and lowered between a closed state in which the door is raised to a predetermined closed position protruding upward from the upper surface of the floor and an open state in which the door is lowered to a predetermined open position accommodated below the upper surface of the floor. With a drive mechanism,
The door is provided with a driven portion driven by the drive mechanism and a region displaced in the width direction from the driven portion, and in the open state, the escape space is opened to the passenger transport device side. part and is provided,
The door is a driven door body that constitutes the driven portion,
An evacuation door body which is a separate body from the driven door body and which constitutes the evacuation portion;
Interlocking means for moving up and down the shelter door body in conjunction with the driven door body,
The evacuation door body includes an elevating frame portion that forms a skeleton of the evacuation door body, a curtain portion that extends downward from an upper edge portion of the elevating frame portion, and a lower end side of the curtain portion is folded in the open state. By this, it has an opening means for opening the lower part of the curtain,
The opening means has a fixing means for fixing one end of the curtain to the upper edge of the elevating frame and fixing the other end of the curtain to the floor or a predetermined position in the vicinity thereof. A platform door device characterized in that In a platform having a floor portion arranged above the road surface through a refuge space, a platform door device provided at a position corresponding to the full length of the passenger transportation equipment stopped on the road surface or the entrance/exit,
An elevating door arranged along the edge of the floor,
At least a pair of guide mechanisms that are arranged between the road surface and the upper surface of the floor section and that guide the up and down movement of the door from at least both widthwise sides of the door,
The door is raised and lowered between a closed state in which the door is raised to a predetermined closed position protruding upward from the upper surface of the floor and an open state in which the door is lowered to a predetermined open position accommodated below the upper surface of the floor. With a drive mechanism,
The door is provided with a driven portion driven by the drive mechanism and a region displaced in the width direction from the driven portion, and in the open state, the escape space is opened to the passenger transport device side. Part and
The door constitutes an upper end portion of the door in the closed state, and has a first door body arranged below the upper surface of the floor portion in the open state and a lower side of the first door body in the closed state. The second door bodies arranged side by side and arranged below the upper surface of the floor in the open state, and the first door body so that the ascending and descending speed of the second door body is slower than the ascending and descending speed of the first door body. An elevator interlocking mechanism for always raising and lowering the door body and the second door body in parallel at the same time,
A platform door device , characterized in that a lower cutout for opening is provided in a lower portion of the first door body and a lower portion of the second door body . The door further includes a base portion that accommodates the first door body and the second door body in the open state,
The lifting interlocking mechanism is
A pair of rotating bodies which are arranged at intervals in the vertical direction and are rotatably attached to the second door body, respectively.
An endless winding body wound around the pair of rotating bodies,
The first door body is connected to one side of the winding body so that the circumferential movement of the winding body and the relative elevation of the first door body with respect to the second door body are interlocked with each other. A connecting part,
A second connecting portion for connecting the base portion to the other side portion of the winding body so that the circumferential movement of the winding body and the relative elevation of the second door body with respect to the base portion are interlocked with each other; The platform door device according to claim 2 , further comprising: The door is a driven door body that constitutes the driven portion,
An evacuation door body which is a separate body from the driven door body and which constitutes the evacuation portion;
The platform door apparatus according to claim 2 or 3 , further comprising: interlocking means for moving up and down the shelter door body in conjunction with the driven door body . The door according to claim 1, characterized in that it comprises a at least two of said a driven door body, two of the arranged sandwiched between the driven door body at least one of said retracted door body Alternatively, the platform door device according to claim 4 . An assist mechanism for assisting the raising operation of the door by the drive mechanism is provided,
The assist mechanism includes an elastic body connected to the door so that the assist mechanism is deformed in association with the lowering of the door and an upward restoring force acts in association with the upward movement of the door. The platform door device according to any one of claims 1 to 5 . An assist mechanism for assisting the raising operation of the door by the drive mechanism is provided,
The assist mechanism is connected to the door so as to rise in conjunction with the lowering of the door and descend in conjunction with the rise of the door, and a weight that is lighter than the door, and a weight of the weight. The platform door apparatus according to any one of claims 1 to 5 , further comprising: a self-weight transmission unit that reverses upward a downward force generated by its own weight and transmits the downward force to the door. The drive mechanism operates with the motor and the pair of zip chains, one end of which is connected to the upper portion of the door, are sequentially engaged with each other from the one end side to make the one end rise while being rigidified. Thus, the door is lowered to the open position by raising the door to the closed position, and lowering the one end while sequentially releasing the engagement of the pair of zip chains from the other end side. The platform door device according to any one of claims 1 to 7 , wherein the platform door device is configured with a zip chain mechanism that performs a lowering operation. A lid portion that covers the door in the open position from above and closes at least a part of a gap portion formed between the door and the floor portion in the closed position from the anti-passenger transport device side;
The platform door device according to any one of claims 1 to 8 , wherein the lid portion is released from the covered state by the raising operation of the door.

Images