JP2015209175A - Two-stage telescopic home door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a two-stage telescopic home door device which can safely and reliably perform a two-stage telescopic motion of a movable part with a drive mechanism of a simple structure.SOLUTION: A door part 30 includes a first step door 31 and a second step door 32, and the second step door 32 is slidingly stored in an interior of the first step door 31. A drive mechanism 40 is equipped with: a first step door drive part 41 including a main drive sheave 42 which is fixedly disposed on a door guard 10 and is rotated by an electric motor M, and a stationery belt 43 of which both ends are fixed to the first step door 31 and which is riven by the main drive sheave 42; an endless belt drive mechanism 58 including a first step rack/pinion mechanism 53, in which a first step pinion gear 52 attached to the first step door 31 is engaged with a first step rack gear 51 which is fixedly disposed in the door guard 10, and a drive side sheave 55 which is coaxial with a first step pinion gear 52; ad a second step door drive part 50 including a connection stationery member 59 which is fixed to the second step door 32 and a revolving belt 57 of the endless belt drive mechanism 58 and connects both to each other.

Description

  The present invention relates to a platform door device that is installed on a platform of a track vehicle and protects passengers, and more particularly to a two-stage telescopic platform door device having a structure in which a slide door extends and contracts.

In recent years, on the platform for boarding / exiting in a railway vehicle station, an example of installing an open / close type platform door device to protect passengers by preventing falling on the track or contact with the railway vehicle. Has increased. In this platform door device, a platform-side passenger and a track are partitioned by a wall surface formed by a movable portion (door) and a fixed portion (door pocket), and the movable portion is stopped at a predetermined position. It is in a position that coincides with the entrance / exit of the rail vehicle.
In addition, the movable part of the platform door device has an opening (frontage) dimension with an appropriate margin for the stop condition of the tracked vehicle depending on the presence or absence of a fixed position stop device (TASC: Train Automatic Stop-position Controller). Has been.

  For example, as disclosed in Patent Document 1 below, a conventional platform door device employs a two-stage telescopic structure that can store a second slide door inside the first slide door using a link. is there. This two-stage telescopic structure can reduce the lateral length (lateral width) of the door pocket by dividing the width direction (opening / closing direction) of the sliding door into two parts. For this reason, the installation interval of the platform door device can be adjusted as appropriate according to the number of entrances / exits of the track vehicle, so that it is easy to install the same number of open / close entrances corresponding to the entrance / exit of the track vehicle.

JP 2000-177580 A

  As described above, a two-stage telescopic type (home telescopic type) home door apparatus can ensure a wide movable part opening size with a door with a short width. For this reason, for example, when the number of entrances and exits of a track vehicle that stops on the platform is large, or when it is desired to increase the opening size of the movable portion by improving the vehicle stopping accuracy, the fixed portion having a width that is narrower than the opening size of the movable portion is provided. Effective when required. That is, a door pocket shorter than the length of the movable part in the opening / closing direction is required due to the conditions of the partition wall (opening / alighting opening size and stopping accuracy of the tracked vehicle), installation space of the station operation panel, emergency door installation, etc. It is effective in the case.

In such a two-stage telescopic platform door device, in addition to ensuring the safety of passengers and passengers, the movable part 2 can be driven by a simple and reliable drive mechanism from the viewpoints of reliability, durability, maintainability and manufacturing cost. It is desired to perform a step expansion / contraction operation.
The present invention has been made in order to solve the above-described problems, and an object of the present invention is to provide a two-stage telescopic home door capable of safely and reliably performing a two-stage expansion / contraction operation of the movable part with a drive mechanism having a simple structure. To provide an apparatus.

In order to solve the above problems, the present invention employs the following means.
The two-stage telescopic home door device according to the first aspect of the present invention is a two-stage telescopic home door device that opens and closes an opening for getting on and off by sliding a two-stage telescopic door housed in a door pocket with a drive mechanism. The door part is housed by sliding the second stage door inside the first stage door, and the first stage door is slidably supported with respect to the door pocket, and the second stage door is The drive mechanism is slidably supported with respect to the first stage door, and the drive mechanism is fixedly installed on the door pocket and rotated by an electric motor, and both ends of the first stage door are fixed by the main drive sheave. A first stage pinion gear attached to the first stage door is meshed with a first stage door drive unit having a string-like drive transmission member to be driven and a first stage rack gear fixedly installed in the door pocket. The first stage rack & pinion mechanism and the above An endless belt drive mechanism having a drive sheave coaxial with the first-stage pinion gear, a connection fixing member fixed to the second-stage door and the string-like drive transmission member of the endless belt drive mechanism to connect both of them. And a second stage door driving unit.
As a suitable string-like drive transmission member in this case, a timing belt, a wire, a chain, etc. can be illustrated.

  According to such a two-stage telescopic home door device, the door portion is housed by sliding the second stage door inside the first stage door, and the first stage door is slidably supported with respect to the door pocket. The second stage door is slidably supported with respect to the first stage door, and the drive mechanism is fixedly installed in the door pocket and rotated by an electric motor. Both ends are fixed to the first stage door. A first stage door drive unit having a string-like drive transmission member driven by the main drive sheave, and a first stage pinion gear attached to the first stage door to a first stage rack gear fixedly installed in the door pocket. The first-stage rack and pinion mechanism and the first-stage pinion gear engaged with each other are fixed to the endless belt drive mechanism having the drive sheave coaxial with the first stage pinion gear, the second stage door, and the endless belt drive mechanism. The first is provided with a connection fixing member for connecting both. Because it is configured to include a corrugated door drive unit, the first and second corrugated doors of the movable part can be reliably slid by two-stage expansion and contraction with a simple structure of one motor. Can be opened and closed.

A two-stage telescopic home door device according to a second aspect of the present invention is a two-stage telescopic home door device that opens and closes an opening for getting on and off by sliding a two-stage telescopic door housed in a door pocket with a drive mechanism. The door part is housed by sliding the second stage door inside the first stage door, and the first stage door is slidably supported with respect to the door pocket, and the second stage door is The drive mechanism is slidably supported with respect to the first stage door, and the drive mechanism is fixedly installed on the door pocket and rotated by an electric motor, and both ends of the first stage door are fixed by the main drive sheave. A first stage pinion gear attached to the first stage door is meshed with a first stage door drive unit having a string-like drive transmission member to be driven and a first stage rack gear fixedly installed in the door pocket. The first stage rack & pinion mechanism and the above An endless belt drive mechanism having a drive sheave coaxial with the first stage pinion gear, a second stage drive sheave coaxial with the driven sheave of the endless belt drive mechanism, and both ends fixed to the second stage door And a second-stage door drive section having a string-like drive transmission member driven by a two-stage drive sheave.
In this case, as a suitable string-like drive transmission member, a timing belt, a wire, a chain, etc. can be illustrated.

  According to such a two-stage telescopic home door device, the door portion is housed by sliding the second stage door inside the first stage door, and the first stage door is slidably supported with respect to the door pocket. The second stage door is slidably supported with respect to the first stage door, and the drive mechanism is fixedly installed in the door pocket and rotated by an electric motor. Both ends are fixed to the first stage door. A first stage door drive unit having a string-like drive transmission member driven by the main drive sheave, and a first stage pinion gear attached to the first stage door to a first stage rack gear fixedly installed in the door pocket. An endless belt drive mechanism having a drive sheave coaxial with the first stage rack and pinion mechanism and the first stage pinion gear, a second stage drive sheave coaxial with the driven sheave of the endless belt drive mechanism, and second Second stage drive sheave fixed at both ends to corrugated door And a second stage door drive unit having a string-like drive transmission member that is driven further, so that the first stage door and the second part of the movable part can be formed by a simple structure with one electric motor. The opening for getting on and off can be opened and closed by sliding the step door by two-stage expansion and contraction.

A two-stage telescopic home door device according to a third aspect of the present invention is a two-stage telescopic home door device that opens and closes an opening for getting on and off by sliding a two-stage telescopic door housed in a door pocket with a drive mechanism. The door part is housed by sliding the second stage door inside the first stage door, and the first stage door is slidably supported with respect to the door pocket, and the second stage door is The drive mechanism is slidably supported with respect to the first stage door, and the drive mechanism is fixedly installed on the door pocket and rotated by an electric motor, and both ends of the first stage door are fixed by the main drive sheave. A first stage pinion gear attached to the first stage door is meshed with a first stage door drive unit having a string-like drive transmission member to be driven and a first stage rack gear fixedly installed in the door pocket. The first stage rack & pinion mechanism and the above An endless belt drive mechanism having a drive sheave coaxial with the first stage pinion gear, and a second stage in which a second stage pinion gear coaxial with the driven sheave of the endless belt drive mechanism is fixedly installed on the second stage door. And a second-stage door drive unit having a second-stage rack and pinion mechanism meshed with the rack gear.
In this case, as a suitable string-like drive transmission member, a timing belt, a wire, a chain, etc. can be illustrated.

  According to such a two-stage telescopic home door device, the door portion is housed by sliding the second stage door inside the first stage door, and the first stage door is slidably supported with respect to the door pocket. The second stage door is slidably supported with respect to the first stage door, and the drive mechanism is fixedly installed in the door pocket and rotated by an electric motor. Both ends are fixed to the first stage door. A first stage door drive unit having a string-like drive transmission member driven by the main drive sheave, and a first stage pinion gear attached to the first stage door to a first stage rack gear fixedly installed in the door pocket. An endless belt drive mechanism having a drive sheave coaxial with the meshed first stage rack and pinion mechanism and first stage pinion gear, and a second stage pinion gear coaxial with the driven sheave of the endless belt drive mechanism. Second stage rack gear fixedly installed on the corrugated door And a second stage door drive unit having a meshed second stage rack and pinion mechanism, so that the first stage door of the movable part and the second stage door and The two-stage door can be reliably slid by two-stage expansion and contraction to open and close the opening for getting on and off.

A two-stage telescopic home door device according to a fourth aspect of the present invention is a two-stage telescopic home door device that opens and closes an opening for getting on and off by sliding a two-stage telescopic door housed in a door pocket with a drive mechanism. The door part is housed by sliding the second stage door inside the first stage door, and the first stage door is slidably supported with respect to the door pocket, and the second stage door is The drive mechanism is slidably supported with respect to the first door, and the drive mechanism meshes with a main drive pinion gear that is rotated by an electric motor fixedly installed in the door pocket, and is fixed to the first door and meshes with the main drive pinion gear. A first stage door drive unit having a main drive rack gear and a first stage pinion gear attached to the first stage door meshed with a first stage rack gear fixedly installed in the door pocket. Rack and pinion mechanism and the first An endless belt drive mechanism having a drive-side sheave coaxial with the pinion gear, and a second fixing member fixed to the second stage door and the string-like drive transmission member of the endless belt drive mechanism and connected to each other. And a two-stage door drive unit.
In this case, as a suitable string-like drive transmission member, a timing belt, a wire, a chain, etc. can be illustrated.

  According to such a two-stage telescopic home door device, the door portion is housed by sliding the second stage door inside the first stage door, and the first stage door is slidably supported with respect to the door pocket. The second stage door is slidably supported with respect to the first stage door, and the drive mechanism is a main drive pinion gear that is rotated by an electric motor fixedly installed in the door pocket, and is fixed to the first stage door. A first stage pinion gear attached to the first stage door is meshed with a first stage door drive unit having a main drive rack gear meshing with the drive pinion gear and a first stage rack gear fixedly installed in the door pocket. The first stage rack and pinion mechanism and the first stage pinion gear are fixed to the endless belt drive mechanism having a drive sheave coaxial with the first stage pinion gear, and the second stage door and the endless belt drive mechanism are fixedly connected to the string-like drive transmission member. A connecting fixing member for Because it is configured to include a corrugated door drive unit, the first and second corrugated doors of the movable part can be reliably slid by two-stage expansion and contraction with a simple structure of one motor. Can be opened and closed.

A two-stage telescopic home door device according to a fifth aspect of the present invention is a two-stage telescopic home door device that opens and closes an opening for getting on and off by sliding a two-stage telescopic door housed in a door pocket by a drive mechanism. The door part is housed by sliding the second stage door inside the first stage door, and the first stage door is slidably supported with respect to the door pocket, and the second stage door is The drive mechanism is slidably supported with respect to the first stage door, and the drive mechanism is rotated by an electric motor fixedly installed on the door pocket, and the main drive pinion gear is fixed to the first stage door. A first stage door drive unit having a meshing main drive rack gear and a first stage pinion gear attached to the first stage door meshed with a first stage rack gear fixedly installed in the door pocket. Corrugated rack and pinion mechanism and the above An endless belt drive mechanism having a drive sheave coaxial with the first stage pinion gear, a second stage drive sheave coaxial with the driven sheave of the endless belt drive mechanism, and both ends fixed to the second stage door And a second-stage door drive section having a string-like drive transmission member driven by a two-stage drive sheave.
In this case, as a suitable string-like drive transmission member, a timing belt, a wire, a chain, etc. can be illustrated.

  According to such a two-stage telescopic home door device, the door portion is housed by sliding the second stage door inside the first stage door, and the first stage door is slidably supported with respect to the door pocket. The second stage door is slidably supported with respect to the first stage door, and the drive mechanism is a main drive pinion gear that is rotated by an electric motor fixedly installed in the door pocket, and is fixed to the first stage door. A first stage pinion gear attached to the first stage door is meshed with a first stage door drive unit having a main drive rack gear meshing with the drive pinion gear and a first stage rack gear fixedly installed in the door pocket. An endless belt drive mechanism having a drive sheave coaxial with the first stage rack and pinion mechanism and the first stage pinion gear, a second stage drive sheave coaxial with the driven sheave of the endless belt drive mechanism, and a second stage door Second stage drive sheave with both ends fixed And a second stage door drive unit having a string-like drive transmission member that is driven further, so that the first stage door and the second part of the movable part can be formed by a simple structure with one electric motor. The opening for getting on and off can be opened and closed by sliding the step door by two-stage expansion and contraction.

  The two-stage telescopic home door device according to the sixth aspect of the present invention is a two-stage telescopic home door device that opens and closes an opening for getting on and off by sliding a two-stage telescopic door housed in a door pocket with a drive mechanism. The door part is housed by sliding the second stage door inside the first stage door, and the first stage door is slidably supported with respect to the door pocket, and the second stage door is The drive mechanism is slidably supported with respect to the first stage door, and the drive mechanism is rotated by an electric motor fixedly installed on the door pocket, and the main drive pinion gear is fixed to the first stage door. A first stage door drive unit having a meshing main drive rack gear and a first stage pinion gear attached to the first stage door meshed with a first stage rack gear fixedly installed in the door pocket. Corrugated rack and pinion mechanism and the above An endless belt drive mechanism having a drive sheave coaxial with the first stage pinion gear, and a second stage in which a second stage pinion gear coaxial with the driven sheave of the endless belt drive mechanism is fixedly installed on the second stage door. And a second-stage door drive unit having a second-stage rack and pinion mechanism meshed with the rack gear.

  According to such a two-stage telescopic home door device, the door portion is housed by sliding the second stage door inside the first stage door, and the first stage door is slidably supported with respect to the door pocket. The second stage door is slidably supported with respect to the first stage door, and the drive mechanism is a main drive pinion gear that is rotated by an electric motor fixedly installed in the door pocket, and is fixed to the first stage door. A first stage pinion gear attached to the first stage door is meshed with a first stage door drive unit having a main drive rack gear meshing with the drive pinion gear and a first stage rack gear fixedly installed in the door pocket. An endless belt drive mechanism having a drive sheave coaxial with the first stage rack and pinion mechanism and the first stage pinion gear, and a second stage pinion gear coaxial with the driven sheave of the endless belt drive mechanism are used as the second stage door. Fixed second stage rack gear And a second stage door drive unit having a meshed second stage rack and pinion mechanism, so that the first stage door of the movable part and the second stage door and The two-stage door can be reliably slid by two-stage expansion and contraction to open and close the entrance opening.

The two-stage telescopic home door device according to the seventh aspect of the present invention is a two-stage telescopic home door device that opens and closes an opening for getting on and off by sliding a two-stage telescopic door housed in a door pocket with a drive mechanism. The door part is housed by sliding the second stage door inside the first stage door, and the first stage door is slidably supported with respect to the door pocket, and the second stage door is The drive mechanism is slidably supported with respect to the first stage door, and the drive mechanism includes a main endless belt drive mechanism that includes a main drive sheave that is rotated by an electric motor fixedly installed in the door pocket, the first stage door, and the The first stage door drive unit having a connecting and fixing member fixed to the string-like drive transmission member of the main endless belt drive mechanism and connecting the two, and the first stage rack gear fixedly installed in the door pocket. 1st stage pinio attached to the corrugated door A first-stage rack and pinion mechanism meshed with a gear, an endless belt drive mechanism having a drive-side sheave coaxial with the first-stage pinion gear, the second-stage door, and a string-like drive transmission of the endless belt drive mechanism And a second-stage door driving unit including a connecting and fixing member that is fixed to the member and connects the two.
In this case, as a suitable string-like drive transmission member, a timing belt, a wire, a chain, etc. can be illustrated.

  According to such a two-stage telescopic home door device, the door portion is housed by sliding the second stage door inside the first stage door, and the first stage door is slidably supported with respect to the door pocket. And a second stage door is slidably supported with respect to the first stage door, and the drive mechanism includes a main endless belt drive mechanism having a main drive sheave that is rotated by an electric motor fixedly installed in the door pocket, A first-stage door drive unit having a connection fixing member fixed to the first-stage door and the string-like drive transmission member of the main endless belt drive mechanism, and a first-stage rack gear fixedly installed in the door pocket; A first-stage rack and pinion mechanism meshed with a first-stage pinion gear attached to the first-stage door, an endless belt drive mechanism having a drive-side sheave coaxial with the first-stage pinion gear, a second-stage door, and For string drive transmission member of endless belt drive mechanism And a second stage door drive unit having a connecting and fixing member that is connected to connect both of the first stage door and the second stage door of the movable part with a simple structure of one motor. The two-stage door can be reliably slid by two-stage expansion and contraction to open and close the entrance opening.

The two-stage telescopic home door apparatus according to the eighth aspect of the present invention is a two-stage telescopic home door apparatus that opens and closes an opening for getting on and off by sliding a two-stage telescopic door housed in a door pocket with a drive mechanism. The door part is housed by sliding the second stage door inside the first stage door, and the first stage door is slidably supported with respect to the door pocket, and the second stage door is The drive mechanism is slidably supported with respect to the first stage door, and the drive mechanism includes a main endless belt drive mechanism that includes a main drive sheave that is rotated by an electric motor fixedly installed in the door pocket, the first stage door, and the The first stage door drive unit having a connecting and fixing member fixed to the string-like drive transmission member of the main endless belt drive mechanism and connecting the two, and the first stage rack gear fixedly installed in the door pocket. 1st stage pinio attached to the corrugated door A first-stage rack and pinion mechanism engaged with a gear, an endless belt drive mechanism having a drive-side sheave coaxial with the first-stage pinion gear, and a second-stage drive coaxial with a driven sheave of the endless belt drive mechanism A sheave, and a second stage door drive unit having a string-like drive transmission member fixed at both ends to the second stage door and driven by the second stage drive sheave. It is what.
In this case, as a suitable string-like drive transmission member, a timing belt, a wire, a chain, etc. can be illustrated.

  According to such a two-stage telescopic home door device, the door portion is housed by sliding the second stage door inside the first stage door, and the first stage door is slidably supported with respect to the door pocket. And a second stage door is slidably supported with respect to the first stage door, and the drive mechanism includes a main endless belt drive mechanism having a main drive sheave that is rotated by an electric motor fixedly installed in the door pocket, A first-stage door drive unit having a connection fixing member fixed to the first-stage door and the string-like drive transmission member of the main endless belt drive mechanism, and a first-stage rack gear fixedly installed in the door pocket; Of a first-stage rack and pinion mechanism meshed with a first-stage pinion gear attached to a first-stage door, an endless belt drive mechanism having a drive-side sheave coaxial with the first-stage pinion gear, and an endless belt drive mechanism Second stage drive coaxial with driven sheave And a second stage door drive unit having a string-like drive transmission member fixed at both ends to the second stage door and driven by the second stage drive sheave. With the simple structure of one unit, the first stage door and the second stage door of the movable part can be reliably slid by two-stage expansion and contraction to open and close the opening for getting on and off.

A two-stage telescopic home door device according to a ninth aspect of the present invention is a two-stage telescopic home door device that opens and closes an opening for getting on and off by sliding a two-stage telescopic door housed in a door pocket with a drive mechanism. The door part is housed by sliding the second stage door inside the first stage door, and the first stage door is slidably supported with respect to the door pocket, and the second stage door is The drive mechanism is slidably supported with respect to the first stage door, and the drive mechanism includes a main endless belt drive mechanism that includes a main drive sheave that is rotated by an electric motor fixedly installed in the door pocket, the first stage door, and the The first stage door drive unit having a connecting and fixing member fixed to the string-like drive transmission member of the main endless belt drive mechanism and connecting the two, and the first stage rack gear fixedly installed in the door pocket. 1st stage pinio attached to the corrugated door A first-stage rack and pinion mechanism meshed with a gear, an endless belt drive mechanism having a drive-side sheave coaxial with the first-stage pinion gear, and a second-stage pinion coaxial with the driven sheave of the endless belt drive mechanism And a second stage door drive unit having a second stage rack and pinion mechanism in which a gear meshes with a second stage rack gear fixedly installed on the second stage door. To do.
In this case, as a suitable string-like drive transmission member, a timing belt, a wire, a chain, etc. can be illustrated.

  According to such a two-stage telescopic home door device, the door portion is housed by sliding the second stage door inside the first stage door, and the first stage door is slidably supported with respect to the door pocket. And a second stage door is slidably supported with respect to the first stage door, and the drive mechanism includes a main endless belt drive mechanism having a main drive sheave that is rotated by an electric motor fixedly installed in the door pocket, A first-stage door drive unit having a connection fixing member fixed to the first-stage door and the string-like drive transmission member of the main endless belt drive mechanism, and a first-stage rack gear fixedly installed in the door pocket; Of a first-stage rack and pinion mechanism meshed with a first-stage pinion gear attached to a first-stage door, an endless belt drive mechanism having a drive-side sheave coaxial with the first-stage pinion gear, and an endless belt drive mechanism Second stage pinion coaxial with driven sheave And a second stage door drive unit having a second stage rack and pinion mechanism that meshes with a second stage rack gear fixedly installed on the second stage door. With the simple structure of the base, the first stage door and the second stage door of the movable part can be reliably slid by two-stage expansion and contraction, and the opening for getting on and off can be opened and closed.

  According to the present invention described above, it is possible to provide a two-stage telescopic home door device capable of safely and reliably performing a two-stage expansion / contraction operation of the movable portion by a drive mechanism having a simple structure.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows one Embodiment (1st Embodiment) of the two-stage expansion-contraction home door apparatus which concerns on this invention, (a) is a front view which shows the state of the opening part for boarding / alighting, (b) is the opening part for boarding / alighting The front view which shows the closed state, (c) is a top view which shows the state of the opening part for boarding / alighting closed. It is a 1st modification of the platform door apparatus shown in FIG. 1, and is a front view which shows the state of the opening part for boarding / alighting closed. It is a 2nd modification of the platform door apparatus shown in FIG. 1, and is a front view which shows the state of the opening part for boarding / alighting closed. It is a figure which shows one Embodiment (2nd Embodiment) of the two-stage expansion-contraction home door apparatus which concerns on this invention, and is a front view which shows the state of the opening part for boarding / alighting. It is a 1st modification of the platform door apparatus shown in FIG. 4, and is a front view which shows the state of the opening part for boarding / alighting closed. It is a 2nd modification of the platform door apparatus shown in FIG. 4, and is a front view which shows the state of the opening part for boarding / alighting closed. It is a figure which shows one Embodiment (3rd Embodiment) of the 2 step | paragraph extendable platform door apparatus which concerns on this invention, and is a front view which shows the state of the opening part for boarding / alighting. FIG. 9 is a first modification of the platform door device shown in FIG. 7, and is a front view showing a closed state of the entrance / exit opening. It is a 2nd modification of the platform door apparatus shown in FIG. 7, and is a front view which shows the state of the opening part for boarding / alighting closed. It is a top view of the state which installed the two-stage telescopic platform door apparatus of this invention on the platform, (a) is the state of the opening part for boarding / alighting which closed the opening part, (b) is the time of boarding / alighting which opened the opening part The state of (opening / alighting opening part opening) is shown. It is the front view which looked at the two-stage expansion-contraction home door apparatus shown in FIG. 10 from the platform side.

Hereinafter, one embodiment of a two-stage telescopic home door device according to the present invention will be described with reference to the drawings.
A two-stage telescopic platform door device (hereinafter referred to as a “home door”) 1 shown in FIGS. 10 and 11 is a device that is installed on a platform H in a station premises for getting on and off an orbital vehicle such as a train to protect passengers. is there. That is, the platform door 1 has a wall surface 2 standing on the platform H so as to block between the track side on which the track vehicle travels and the platform H side used for getting on and off passengers. An opening 3 for getting on and off is formed, and the opening 3 that becomes a getting-on / off passage when getting on and off the track vehicle is opened and closed.

  The home door 1 is configured to slide a two-stage telescopic door 30 housed in the door pocket 10 by a drive mechanism 40 described later in order to open and close the opening 3 for getting on and off. The door pocket 10 has a substantially rectangular parallelepiped shape, and its outer wall surface forms part of the wall surface 2 together with the door portion 30.

  In the closed state in which the door 30 closes the opening 3 with the door 30, the wall surface 2 blocks the track side and the platform H side, so that passengers fall on the track. In addition, it is possible to prevent the passengers from coming into contact with the track vehicle on which the vehicle travels, and to protect passengers and ensure safety. In addition, the platform door 1 can be used to get in and out of passengers who get on and off the track 3 in the state where the opening 3 is opened by storing the door 30 in the door pocket 10 so that the opening 3 is opened. Can be used as a passage.

By the way, in embodiment of illustration, the opening part 3 is opened and closed by the door part 30 which expands-contracts two steps from a pair of right and left door pockets 10, respectively. However, since the basic configuration of the pair of left and right door pockets 10 is substantially the same, in the following description, as one embodiment of a two-stage telescopic home door device, the door portion 30 accommodated in one door pocket 10. The configuration of will be described in detail.
Moreover, although the door pocket 10 shown in FIG.10 and FIG.11 expands and contracts the door part 30 to both right and left directions, it is set as the structure which the door part 30 expands and contracts to one side in the following description. When the door 30 is expanded and contracted in two directions in the left and right directions, two sets of the door 30 and the drive mechanism may be shifted in the thickness direction of the door pocket 10 and thus limited to the illustrated configuration. Never happen.

<First Embodiment>
FIG. 1 shows the configuration of a drive mechanism 40 as an example of the internal configuration of a door pocket 10 constituting the home door 1. A pair of door portions 30 housed in the door pocket 10 are expanded and contracted in two steps in the horizontal direction (wall surface direction) by the drive mechanism 40 to open and close the opening portion 3 for getting on and off. 1, (a) is a front view showing a state where the opening 3 for getting on and off is opened, (b) is a front view showing a state where the opening 3 is closed, and (c) is a view showing the state where the opening 3 is closed. It is a top view which shows the state.
The door pocket 10 is a hollow member having a substantially rectangular parallelepiped shape, and a bottom portion is fixedly supported by the platform H. Inside the door pocket 10 are housed a two-stage telescopic door 30 described later and a drive mechanism 40 for opening and closing the door 30. Moreover, the outer wall surface of the door pocket 10 made into the substantially rectangular parallelepiped shape is a part of the wall surface 2 that partitions the track side and the platform H side together with the door portion 30 that opens and closes.

The door portion 30 has a two-stage telescopic structure including a first stage door 31 and a second stage door 32. In the door portion 30, the first step door 31 slides in the first step with respect to the door pocket 10, and the second step door 32 housed in the first step door 31 becomes the first step door 31. On the other hand, by sliding in the second stage, the entire door opens and closes in two stages.
That is, the first stage door 31 is slidably supported with respect to the door pocket 10 by a slide support mechanism (not shown), and the second stage door 32 is slid with respect to the first stage door 31. And is slidably supported.

The drive mechanism 40 includes a first stage door drive unit 41 that slides the first stage door 31 in the opening and closing direction with respect to the door pocket 10, and a second stage that slides the second stage door 32 in the opening and closing direction with respect to the first stage door 31. And a two-stage door drive unit 50.
The first stage door drive unit 41 is fixedly installed in the door pocket 10 and rotated by an electric motor M, and a string drive driven by the main drive sheave 42 with both ends fixed to the first stage door 31. It is a belt drive comprised including the fixed belt 43 of a transmission member. In such belt driving, examples of the string-like driving member suitable as the fixing belt 43 include a timing belt and a wire, a chain, and the like. Reference numeral 44 in the figure denotes an idler that supports the fixed belt 43 on both sides of the main drive sheave 42.

The electric motor M is installed at an appropriate position in the door pocket 10, for example, in the vicinity of the bottom on the opening side where the door 30 enters and exits. A main drive sheave 42 that drives the fixed belt 43 is attached to the output shaft of the electric motor M.
Both end portions of the fixing belt 43 are fixed to, for example, the vicinity of the bottom end portion of the first step door 31. The fixing belt 43 is in close contact with the main driving sheave 42 while being wound around a substantially half circumference. Further, the fixing belt 43 changes its direction by approximately 90 degrees along the bottom surface of the first door 31 via idlers 44 provided on both sides of the main drive sheave 42.

The second stage drive unit 50 includes a first stage rack and pinion mechanism in which a first stage rack gear 51 fixedly installed in the door pocket 10 and a first stage pinion gear 52 attached to the first stage door 31 are engaged. 53. Further, the second stage drive unit 50 includes a drive sheave 55 attached to the same rotating shaft 54 as the first stage pinion gear 52, and an endless string-like shape between the drive side sheave 55 and the driven sheave 56. An endless belt drive mechanism 58 is provided that is configured by winding a rotating belt 57 that is a drive transmission member. In such an endless belt drive mechanism 58, examples of the string-like drive member suitable as the rotation belt 57 include a timing belt and a wire, a chain, and the like. The rack gear 51 has a length that covers the open / close movement range of the first stage door 31.
The second stage door drive unit 50 of the present embodiment includes a connection fixing member 59 that connects the bottom part of the second stage door 32 and the rotating belt 57 of the endless belt drive mechanism 58. Since the connecting and fixing member 59 is fixed to both the rotating belt 57 and the second stage door 32, the connecting and fixing member 59 is a member that opens and closes the second door 32 integrally with the movement of the rotating belt 57.

Below, the operation | movement which opens and closes the door part 30 by expanding and contracting the door part 30 about the drive mechanism 40 of the structure mentioned above is demonstrated.
FIG. 1A shows a state in which the boarding opening 3 is opened (the boarding opening is opened), and the first stage door 31 and the second stage door 32 are both housed inside the door pocket 10. Yes. When the electric motor M is driven counterclockwise from this state, the first stage door driving unit 41 first slides to the right in the drawing to start the first stage closing operation. At the start of this closing operation, the second stage door 32 is housed inside the first stage door 31.

That is, in the first stage door drive unit 41, the main drive sheave 42 attached to the output shaft of the electric motor M rotates counterclockwise, so that the fixed belt 43 that is in close contact with the main drive sheave 42 generates driving force. Receive and move in the same direction. In other words, the fixed belt 43 moves in the same direction along with the outer peripheral surface of the main drive sheave 42 that rotates at a predetermined position of the door pocket 10. For this reason, the first stage door 31 that is fixedly connected to both ends of the fixing belt 43 slides in the direction in which the opening 3 is closed together with the fixing belt 43 (rightward in the drawing).
When the first stage door 31 slides in this way, the first stage pinion gear 52 and the driving sheave 55 attached to the first stage door 31 also move together. For this reason, the first stage pinion gear 52 rotates by meshing with the rack gear 51 fixed inside the door pocket 10 and rotates the coaxial driving sheave 55 clockwise.

When the driving sheave 55 rotates clockwise, the rotating belt 57 also receives driving force and rotates in the same direction. As a result, since the second stage door 32 is connected to the upper stage side of the rotation belt 57 via the connection fixing member 59, the second stage door 32 slides in the direction of closing the opening 3 with respect to the first stage door 31. Initiate phase closing.
Therefore, when the electric motor M of the drive mechanism 40 is operated, the door 30 is closed at the same time as the first stage 31 where the first stage 31 is slid with respect to the door pocket 10, and the second stage 32 is the first stage 31. The second-stage closing operation that slides with respect to is performed, and the two-stage closing operation for closing the boarding opening 3 is performed.

On the other hand, when the drive mechanism 40 is operated from the state in which the boarding / exit opening 3 shown in FIGS. 1B and 1C is closed (the boarding opening closed), the motor M and the main drive sheave 42 are operated. Rotates clockwise. As a result, the first step door 31 is housed inside the door pocket 10 integrally with the fixing belt 43 and starts to slide in the direction of opening the opening 3 (left direction on the paper).
In the second door 32, the first stage pinion gear 52 and the driving sheave 55 also move together with the first stage door 31, so that the first stage pinion gear 52 rotates by meshing with the rack gear 51 and is coaxial. The drive sheave 55 is rotated counterclockwise. As a result, the second stage door 32 connected to the upper stage side of the rotating belt 57 via the connection fixing member 59 slides in the direction of opening the opening 3 with respect to the first stage door 31. Initiate closing.

Therefore, when the electric motor M of the drive mechanism 40 is operated in the reverse direction, the door 30 is opened in the first stage in which the first door 31 is slid with respect to the door pocket 10, and the second door 32 is in the first stage. The opening operation of the 2nd step which slides with respect to the corrugated door 31 is performed, and the opening operation of 2 steps which opens the opening part 3 for boarding / alighting is performed.
Thus, the drive mechanism 40 of the present embodiment reliably performs the operation of opening and closing the first stage door 31 and the second stage door 32 by expanding and contracting the first stage door 31 and the second stage door 32 by driving one electric motor M. The opening 30 for getting on and off can be opened and closed by sliding the part 30 by two-stage expansion and contraction.

Next, a drive mechanism 40A according to a first modification will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the part similar to embodiment mentioned above, and the detailed description is abbreviate | omitted.
This drive mechanism 40A uses the same first stage door drive unit 41 as in the above-described embodiment, and the second stage door drive unit 50A for sliding the second stage door 32 in the opening / closing direction is different.

Similarly to the above-described embodiment, the second-stage door drive unit 50A meshes the first-stage pinion gear 52 attached to the first-stage door 31 with the first-stage rack gear 51 fixedly installed in the door pocket 10. A first-stage rack and pinion mechanism 53 is provided. The second-stage door drive unit 50A of the first modification includes an endless belt drive mechanism 58 including a drive-side sheave 55 that is coaxial with the first-stage pinion gear 52 of the first-stage rack and pinion mechanism 53. The same is true.
However, unlike the structure in which the second stage door 32 is connected to the endless belt drive mechanism 58, this first modification is coaxial with the driven sheave 56 as a mechanism for finally sliding the second stage door 32 in the opening / closing direction. The second stage drive sheave 60 is provided. The second stage drive sheave 60 drives a fixed belt 61 having both ends fixed to the bottom surface of the second stage door 32. Therefore, the second stage drive sheave 60 has the same function as the main drive sheave 42 of the first stage door drive unit 40. It is what you have. The fixing belt 61 in this case is a string-like driving member similar to the fixing belt 43 of the first stage door driving unit 41 described above, and therefore, a timing belt, a wire, a chain, and the like can be used.

  That is, the second stage door drive mechanism 50 </ b> A employs the same belt drive as the opening / closing operation of the first stage door 31 for the opening / closing operation of the second stage door 32, and the second stage driving sheave 60 is driven side sheave 56. , The fixed belt 61 in close contact with the second stage drive sheave 60 is driven and moves in the same direction. For this reason, the second stage door 32 that is fixedly connected to both ends of the fixing belt 61 slides in the opening / closing direction of the opening 3 together with the fixing belt 61. Reference numeral 62 in the figure denotes an idler that supports the fixed belt 61 on both sides of the second stage drive sheave 60.

Next, a drive mechanism 40B of a second modification will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the part similar to embodiment mentioned above, and the detailed description is abbreviate | omitted.
This drive mechanism 40B uses the same first stage door drive unit 41 as in the above-described embodiment, and the second stage door drive unit 50B that slides the second stage door 32 in the opening / closing direction is different.

Similarly to the above-described embodiment, the second stage door drive unit 50B meshes the first stage pinion gear 52 attached to the first stage door 31 with the first stage rack gear 51 fixedly installed in the door pocket 10. A first-stage rack and pinion mechanism 53 is provided. The second-stage door drive unit 50B of the second modification includes an endless belt drive mechanism 58 including a drive-side sheave 55 coaxial with the first-stage pinion gear 52 of the first-stage rack and pinion mechanism 53. The same is true.
However, this second modification uses a second-stage rack and pinion mechanism 63 that is driven by the driven sheave 56 of the endless belt drive mechanism 58 as a mechanism for finally sliding the second-stage door 32 in the opening / closing direction. ing. The second-stage rack and pinion mechanism 63 has a second-stage rack gear 65 fixedly installed on the bottom surface of the second-stage door 32 with a second-stage pinion gear 64 coaxial with the driven sheave 56 of the endless belt drive mechanism 58. It has been meshed.

  That is, the second-stage door drive mechanism 50B is similar to the first-stage rack and pinion mechanism 53 that operates the drive sheave 55 of the endless belt drive mechanism 58 to open and close the second stage door 32. By adopting the pinion mechanism 63 and the second stage pinion gear 64 rotating in the same direction as the driven sheave 56, the second stage rack gear 65 meshing with the second stage pinion gear 64 also moves in the same direction. . For this reason, the second stage door 32 on which the second stage rack gear 65 is fixedly installed slides in the opening / closing direction of the opening 3 together with the second stage rack gear 65.

<Second Embodiment>
Next, a second embodiment of the platform door device according to the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the part similar to embodiment mentioned above and its modification, and the detailed description is abbreviate | omitted.
Unlike the belt-driven first stage door drive unit 41 employed in the above-described embodiment, the drive mechanism 40C of the present embodiment employs a first stage door drive unit 41A of a rack and pinion mechanism.

The first stage door drive unit 41A of the present embodiment is fixed to the main drive pinion gear 45 rotated by an electric motor M fixedly installed in the door pocket 10 and an appropriate position (for example, the bottom surface) of the first stage door 31 to be main driven. A main drive rack and pinion mechanism 47 including a main drive rack gear 46 meshing with the pinion gear 45 is provided.
In such a first stage door drive unit 41A, the main drive pinion gear 45 is attached to the output shaft of the electric motor M, so that the main drive pinion gear 45 also rotates in the same direction as the electric motor M rotates. . As a result, the main drive rack gear 46 that meshes with the main drive pinion gear 45 slides in one of the opening / closing directions integrally with the first stage door 31 according to the rotation direction of the main drive pinion gear 45.

  And the 1st stage door drive part 41A of this embodiment is provided with the 2nd stage door drive part 50 demonstrated in embodiment (refer FIG. 1) mentioned above. The second stage drive unit 50 includes a first stage rack and pinion in which a first stage rack gear 51 fixedly installed in the door pocket 10 and a first stage pinion gear 52 attached to the first stage door 31 are engaged. The second stage drive unit 50 includes a drive sheave 55 attached to the same rotation shaft 54 as that of the first stage pinion gear 52, and a gap between the drive sheave 55 and the driven sheave 56 is provided. An endless belt driving mechanism 58 is provided that is configured by winding an endless rotating belt 57 around the endless rotating belt 57.

Since the bottom portion of the second stage door 32 and the rotating belt 57 of the endless belt drive mechanism 58 are connected by the connecting and fixing member 59, the second stage door 32 moves in the moving direction of the rotating belt 57. Open and close together.
The drive mechanism 40C according to this embodiment surely performs an operation to open and close the first stage door 31 and the second stage door 32 by expanding and contracting the first stage door 31 and the second stage door 32 by driving one electric motor M. The opening 3 for getting on and off can be opened and closed by sliding 30 by two-stage expansion and contraction.

Next, a drive mechanism 40D of a first modification example according to the second embodiment will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the part similar to each embodiment mentioned above and its modification, and the detailed description is abbreviate | omitted.
The drive mechanism 40D uses the first stage door drive unit 41A of the same rack and pinion mechanism 47 as in the above-described embodiment, and is a drive mechanism that slides the second stage door 32 in the opening / closing direction as shown in FIG. A two-stage door drive unit 50A is employed.

  That is, in the second stage door drive section 50A, a second stage drive sheave 60 that is coaxial with the driven sheave 56 is provided as a mechanism for finally sliding the second stage door 32 in the opening and closing direction. The second stage drive sheave 60 drives a fixed belt 61 having both ends fixed to the bottom surface of the second stage door 32. Therefore, the second stage drive sheave 60 has the same function as the main drive sheave 42 of the first stage door drive unit 40. It is what you have.

Next, a drive mechanism 40E of a second modification example according to the second embodiment will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the part similar to each embodiment mentioned above and its modification, and the detailed description is abbreviate | omitted.
The drive mechanism 40E uses the first stage door drive unit 41A of the same rack and pinion mechanism 47 as that of the above-described embodiment, and is a drive mechanism that slides the second stage door 32 in the opening / closing direction as shown in FIG. A two-stage door drive unit 50B is employed.

  That is, the second stage door drive mechanism 50B adopts the second stage rack and pinion mechanism 63 as a mechanism for finally sliding the second stage door 32 in the opening / closing direction, and the second stage pinion gear 64 is driven. By rotating in the same direction as the side sheave 56, the second stage rack gear 65 meshing with the second stage pinion gear 64 also moves in the same direction. For this reason, the second stage door 32 on which the second stage rack gear 65 is fixedly installed slides in the opening / closing direction of the opening 3 together with the second stage rack gear 65.

<Third Embodiment>
Next, a third embodiment of the platform door device according to the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the part similar to embodiment mentioned above and its modification, and the detailed description is abbreviate | omitted.
The drive mechanism 40F of the present embodiment is different from the belt-driven first-stage door drive section 41 or the first-stage door drive section 41A of the rack and pinion mechanism employed in the above-described embodiment, and is the first stage of the endless belt drive mechanism. The door drive unit 41B is employed.

The first stage door drive unit 41B of the present embodiment includes a main endless belt drive mechanism 58A including a main drive sheave 55M that is rotated by an electric motor M fixedly installed in the door pocket 10, a driven sheave 56, and a rotation belt 57. The first stage door 31 and a connecting and fixing member 59 fixed to the rotating belt 57 of the main endless belt drive mechanism 58A and connecting both of them are configured.
Since the main drive sheave 55M is attached to the output shaft of the electric motor M, the main drive sheave 55M also rotates in the same direction as the electric motor M rotates. Move. As a result, since the first stage door 31 is connected to the upper stage side of the rotation belt 57 via the connection fixing member 59, the opening part with respect to the door pocket 10 is formed according to the rotation direction of the main drive side sheave 55M. The first-stage opening / closing operation of sliding in either direction of opening / closing 3 is started.

  And the drive mechanism 40F of this embodiment is set as the structure which combined the 2nd stage door drive part 50 of both embodiment mentioned above (refer FIG.1 and FIG.4) with the 1st stage door drive part 41B. The second stage drive unit 50 includes a first stage rack and pinion in which a first stage rack gear 51 fixedly installed in the door pocket 10 and a first stage pinion gear 52 attached to the first stage door 31 are engaged. The second stage drive unit 50 includes a drive sheave 55 attached to the same rotation shaft 54 as that of the first stage pinion gear 52, and a gap between the drive sheave 55 and the driven sheave 56 is provided. An endless belt driving mechanism 58 is provided that is configured by winding an endless rotating belt 57 around the endless rotating belt 57.

Since the bottom portion of the second stage door 32 and the rotating belt 57 of the endless belt drive mechanism 58 are connected by the connecting and fixing member 59, the second stage door 32 moves in the moving direction of the rotating belt 57. Open and close together.
The drive mechanism 40F according to this embodiment reliably drives the first electric motor M to open and close the first stage door 31 and the second stage door 32 by expanding and contracting the first stage door 31 and the second stage door 32. The opening 3 for getting on and off can be opened and closed by sliding 30 by two-stage expansion and contraction.

Next, a drive mechanism 40G of a first modification example according to the third embodiment will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the part similar to each embodiment mentioned above and its modification, and the detailed description is abbreviate | omitted.
This drive mechanism 40G uses the same first end door drive unit 41B of the main endless belt mechanism 58 as in the above-described embodiment, and as a drive mechanism for sliding the second stage door 32 in the opening / closing direction, FIGS. The second stage door drive unit 50A shown in FIG.

  That is, in the second stage door drive section 50A, a second stage drive sheave 60 that is coaxial with the driven sheave 56 is provided as a mechanism for finally sliding the second stage door 32 in the opening and closing direction. The second stage drive sheave 60 drives a fixed belt 61 having both ends fixed to the bottom surface of the second stage door 32. Therefore, the second stage drive sheave 60 has the same function as the main drive sheave 42 of the first stage door drive unit 40. It is what you have.

Next, a drive mechanism 40H of a second modification example according to the third embodiment will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the part similar to each embodiment mentioned above and its modification, and the detailed description is abbreviate | omitted.
The drive mechanism 40H uses the same first end door drive unit 41B of the main endless belt mechanism 58 as in the above-described embodiment, and as a drive mechanism that slides the second stage door 32 in the opening / closing direction, as shown in FIGS. The second stage door drive unit 50B shown in FIG.

  That is, the second stage door drive mechanism 50B adopts the second stage rack and pinion mechanism 63 as a mechanism for finally sliding the second stage door 32 in the opening / closing direction, and the second stage pinion gear 64 is driven. By rotating in the same direction as the side sheave 56, the second stage rack gear 65 meshing with the second stage pinion gear 64 also moves in the same direction. For this reason, the second stage door 32 on which the second stage rack gear 65 is fixedly installed slides in the opening / closing direction of the opening 3 together with the second stage rack gear 65.

As described above, each of the drive mechanisms 40, 40A to 40H described above has a simple structure with only one electric motor M, and the first stage door 31 and the second stage door 32 of the movable part are reliably slid by two-stage expansion and contraction. It becomes possible to open and close the opening 3 for getting on and off.
Therefore, the platform door 1 of the present embodiment can safely and reliably perform the two-stage expansion / contraction operation of the movable portion by the drive mechanism 40, 40A to 40H having a simple structure.
In addition, this invention is not limited to embodiment mentioned above, In the range which does not deviate from the summary, it can change suitably.

1 Two-stage telescopic home door device (home door)
DESCRIPTION OF SYMBOLS 2 Wall surface 3 Opening part 10 Door pocket 30 Door part 31 1st stage door 32 2nd stage door 40,40A-40H Drive mechanism 41,41A, 41B 1st stage door drive part 42 Main drive sheave 43,61 Fixed belt (string shape Drive transmission member)
44, 62 Idler 45 Main drive pinion gear 46 Main drive rack gear 47 Main drive rack & pinion mechanism 50, 50A, 50B Second stage door drive unit 51 First stage rack gear 52 First stage pinion gear 53 First stage rack & pinion mechanism 54 Rotating shaft 55 Drive side sheave 55M Main drive side sheave 56 Driven side sheave 57 Rotating belt (string drive transmission member)
58 endless belt drive mechanism 58A main endless belt drive mechanism 59 connecting and fixing member 60 second stage drive sheave 63 second stage rack and pinion mechanism 64 second stage pinion gear 65 second stage rack gear H platform M electric motor

Claims (9)

In a two-stage telescopic home door device that opens and closes an opening for getting on and off by sliding a two-stage telescopic door housed in a door pocket with a drive mechanism,
The door part is housed by sliding the second stage door inside the first stage door, and the first stage door is slidably supported with respect to the door pocket, and the second stage door is Slidably supported with respect to the first door,
The drive mechanism includes a main drive sheave fixedly installed in the door pocket and rotated by an electric motor, and a string-like drive transmission member fixed at both ends to the first stage door and driven by the main drive sheave. A one-stage door drive,
A first-stage rack and pinion mechanism in which a first-stage pinion gear attached to the first-stage door is engaged with a first-stage rack gear fixedly installed in the door pocket, and a drive side coaxial with the first-stage pinion gear. An endless belt drive mechanism including a sheave, a second stage door drive unit including a connection fixing member that is fixed to the string-like drive transmission member of the second stage door and the endless belt drive mechanism and connects both; A two-stage telescopic platform door device comprising: In a two-stage telescopic home door device that opens and closes an opening for getting on and off by sliding a two-stage telescopic door housed in a door pocket with a drive mechanism,
The door part is housed by sliding the second stage door inside the first stage door, and the first stage door is slidably supported with respect to the door pocket, and the second stage door is Slidably supported with respect to the first door,
The drive mechanism includes a main drive sheave fixedly installed in the door pocket and rotated by an electric motor, and a string-like drive transmission member fixed at both ends to the first stage door and driven by the main drive sheave. A one-stage door drive,
A first-stage rack and pinion mechanism in which a first-stage pinion gear attached to the first-stage door is engaged with a first-stage rack gear fixedly installed in the door pocket, and a drive side coaxial with the first-stage pinion gear. An endless belt drive mechanism having a sheave, a second stage drive sheave coaxial with the driven sheave of the endless belt drive mechanism, and a string fixed at both ends to the second stage door and driven by the second stage drive sheave And a second-stage door drive section having a drive transmission member. In a two-stage telescopic home door device that opens and closes an opening for getting on and off by sliding a two-stage telescopic door housed in a door pocket with a drive mechanism,
The door part is housed by sliding the second stage door inside the first stage door, and the first stage door is slidably supported with respect to the door pocket, and the second stage door is Slidably supported with respect to the first door,
The drive mechanism includes a main drive sheave fixedly installed in the door pocket and rotated by an electric motor, and a string-like drive transmission member fixed at both ends to the first stage door and driven by the main drive sheave. A one-stage door drive,
A first-stage rack and pinion mechanism in which a first-stage pinion gear attached to the first-stage door is engaged with a first-stage rack gear fixedly installed in the door pocket, and a drive side coaxial with the first-stage pinion gear. An endless belt drive mechanism having a sheave, and a second stage rack in which a second stage pinion gear coaxial with the driven sheave of the endless belt drive mechanism is engaged with a second stage rack gear fixedly installed on the second stage door A second-stage telescopic home door device comprising: a second-stage door drive unit including an & pinion mechanism. In a two-stage telescopic home door device that opens and closes an opening for getting on and off by sliding a two-stage telescopic door housed in a door pocket with a drive mechanism,
The door part is housed by sliding the second stage door inside the first stage door, and the first stage door is slidably supported with respect to the door pocket, and the second stage door is Slidably supported with respect to the first door,
The drive mechanism includes a main drive pinion gear that is rotated by an electric motor fixedly installed in the door pocket, and a main drive rack gear that is fixed to the first stage door and meshes with the main drive pinion gear. A drive unit;
A first-stage rack and pinion mechanism in which a first-stage pinion gear attached to the first-stage door is engaged with a first-stage rack gear fixedly installed in the door pocket, and a drive side coaxial with the first-stage pinion gear. An endless belt drive mechanism including a sheave, a second stage door drive unit including a connection fixing member that is fixed to the string-like drive transmission member of the second stage door and the endless belt drive mechanism and connects both; A two-stage telescopic platform door device comprising: In a two-stage telescopic home door device that opens and closes an opening for getting on and off by sliding a two-stage telescopic door housed in a door pocket with a drive mechanism,
The door part is housed by sliding the second stage door inside the first stage door, and the first stage door is slidably supported with respect to the door pocket, and the second stage door is Slidably supported with respect to the first door,
The drive mechanism includes a main drive pinion gear that is rotated by an electric motor fixedly installed in the door pocket, and a main drive rack gear that is fixed to the first stage door and meshes with the main drive pinion gear. A drive unit;
A first-stage rack and pinion mechanism in which a first-stage pinion gear attached to the first-stage door is engaged with a first-stage rack gear fixedly installed in the door pocket, and a drive side coaxial with the first-stage pinion gear. An endless belt drive mechanism having a sheave, a second stage drive sheave coaxial with the driven sheave of the endless belt drive mechanism, and a string fixed at both ends to the second stage door and driven by the second stage drive sheave And a second-stage door drive section having a drive transmission member. In a two-stage telescopic home door device that opens and closes an opening for getting on and off by sliding a two-stage telescopic door housed in a door pocket with a drive mechanism,
The door part is housed by sliding the second stage door inside the first stage door, and the first stage door is slidably supported with respect to the door pocket, and the second stage door is Slidably supported with respect to the first door,
The drive mechanism includes a main drive pinion gear that is rotated by an electric motor fixedly installed in the door pocket, and a main drive rack gear that is fixed to the first stage door and meshes with the main drive pinion gear. A drive unit;
A first-stage rack and pinion mechanism in which a first-stage pinion gear attached to the first-stage door is engaged with a first-stage rack gear fixedly installed in the door pocket, and a drive side coaxial with the first-stage pinion gear. An endless belt drive mechanism having a sheave, and a second stage rack in which a second stage pinion gear coaxial with the driven sheave of the endless belt drive mechanism is engaged with a second stage rack gear fixedly installed on the second stage door A second-stage telescopic home door device comprising: a second-stage door drive unit including an & pinion mechanism. In a two-stage telescopic home door device that opens and closes an opening for getting on and off by sliding a two-stage telescopic door housed in a door pocket with a drive mechanism,
The door part is housed by sliding the second stage door inside the first stage door, and the first stage door is slidably supported with respect to the door pocket, and the second stage door is Slidably supported with respect to the first door,
The drive mechanism is fixed to a string-like drive transmission member of a main endless belt drive mechanism having a main drive sheave that is rotated by an electric motor fixedly installed in the door pocket, the first stage door, and the main endless belt drive mechanism. A first stage door drive unit comprising a connecting and fixing member for connecting the two,
A first-stage rack and pinion mechanism in which a first-stage pinion gear attached to the first-stage door is engaged with a first-stage rack gear fixedly installed in the door pocket, and a drive side coaxial with the first-stage pinion gear. An endless belt drive mechanism including a sheave, a second stage door drive unit including a connection fixing member that is fixed to the string-like drive transmission member of the second stage door and the endless belt drive mechanism and connects both; A two-stage telescopic platform door device comprising: In a two-stage telescopic home door device that opens and closes an opening for getting on and off by sliding a two-stage telescopic door housed in a door pocket with a drive mechanism,
The door part is housed by sliding the second stage door inside the first stage door, and the first stage door is slidably supported with respect to the door pocket, and the second stage door is Slidably supported with respect to the first door,
The drive mechanism is fixed to a string-like drive transmission member of a main endless belt drive mechanism having a main drive sheave that is rotated by an electric motor fixedly installed in the door pocket, the first stage door, and the main endless belt drive mechanism. A first stage door drive unit comprising a connecting and fixing member for connecting the two,
A first-stage rack and pinion mechanism in which a first-stage pinion gear attached to the first-stage door is engaged with a first-stage rack gear fixedly installed in the door pocket, and a drive side coaxial with the first-stage pinion gear. An endless belt drive mechanism having a sheave, a second stage drive sheave coaxial with the driven sheave of the endless belt drive mechanism, and a string fixed at both ends to the second stage door and driven by the second stage drive sheave And a second-stage door drive section having a drive transmission member. In a two-stage telescopic home door device that opens and closes an opening for getting on and off by sliding a two-stage telescopic door housed in a door pocket with a drive mechanism,
The door part is housed by sliding the second stage door inside the first stage door, and the first stage door is slidably supported with respect to the door pocket, and the second stage door is Slidably supported with respect to the first door,
The drive mechanism is fixed to a string-like drive transmission member of a main endless belt drive mechanism having a main drive sheave that is rotated by an electric motor fixedly installed in the door pocket, the first stage door, and the main endless belt drive mechanism. A first stage door drive unit comprising a connecting and fixing member for connecting the two,
A first-stage rack and pinion mechanism in which a first-stage pinion gear attached to the first-stage door is engaged with a first-stage rack gear fixedly installed in the door pocket, and a drive side coaxial with the first-stage pinion gear. An endless belt drive mechanism having a sheave, and a second stage rack in which a second stage pinion gear coaxial with the driven sheave of the endless belt drive mechanism is engaged with a second stage rack gear fixedly installed on the second stage door A second-stage telescopic home door device comprising: a second-stage door drive unit including an & pinion mechanism.

Images