JP2020117083A - Platform fence and biparting platform fence - Google Patents

Abstract

To provide a two-stage type platform fence which can extend an inspection cycle more than before.SOLUTION: A platform fence 2 (2R) includes: 1) a first rack and pinion mechanism part 21 which includes a first pinion 21p pivotally supported by a door pocket part 10 and a first rack 21r disposed on a rear end side door 11, in order to slidingly move the rear end side door 11 relative to the door pocket part 10; 2) a second rack and pinion mechanism part 22 including a second pinion 22p pivotally supported by the door pocket part 10 and a second rack 22r disposed on a tip side door 12; a 3) a motor 30 for driving the first pinion 21p; and 4) a transmission gear 23 engaged with the first pinion 21p and the second pinion 22p. The transmission gear 23 transmits rotation of the first pinion 21p accompanying the sliding movement of the rear end side door 11 to the second pinion 22p, so that the second pinion 22p rotates and the tip side door 12 is interlocked.SELECTED DRAWING: Figure 2

Description

The present invention relates to a platform fence or the like installed on a platform of a station.

A two-stage sliding door that is installed on the track side of the platform of the station, and that opens and closes the door at the timing of getting on and off the vehicle, slides from one door bag to move a two-stage sliding door type movable door back and forth. Type home fence is known.

For example, Patent Document 1 discloses a two-stage sliding door type home fence that is a home fence that drives two stages of movable doors in synchronization with each other and uses a timing belt and a pulley for a drive mechanism. In the home fence, the front door (the door on the advancing/retreating side of the movable door of the two steps) and the rear end door (the door on the receding side of the moving step of the two steps) work together to open and close. It is driven, and the opening and closing speed of the front door is double that of the rear door.

Further, Patent Document 2 discloses a two-stage sliding door type home fence in which a timing belt, a wire, a chain, etc. are adopted as a cord-like drive transmission member of a drive mechanism and which operates in the same manner as the home fence of Patent Document 1. ..

JP, 2005-76213, A JP, 2005-209175, A

In the case of the home fence of Patent Document 1, since the timing belt is used for the drive mechanism, if the belt is worn or the tension is lowered, the function is lowered, so that periodic inspection is required.
Further, in the home fence of Patent Document 2, a timing belt, a wire, a chain or the like is used as the string-shaped drive transmission member. However, in the case of a wire, there is a possibility that the wire will be broken, rusted or loosened due to a decrease in tension. However, regular inspection is essential. Further, when a chain is used, periodical inspection is indispensable because pin wear and rust, looseness due to reduced tension, etc., lead to reduced transmission efficiency. Since a regular inspection is a burden on the operator, a two-tiered platform fence that can make the inspection cycle longer than before is desired.

In addition, the platform fences are often installed as a pair of double-opening platform fences according to the train door spacing. When there is only one type of train to enter, the space between the two platform fences can be secured, so a cover or emergency door can be attached to a door pocket or the like. However, if the number of trains entering the train increases and the spacing between the two platform fences is set so as to accommodate various numbers of doors and door spacings, emergency doors may not be provided. In particular, at stations where mutual access is carried out, it is difficult to provide an emergency door because there are many types of trains. Therefore, there is a demand for a double-opening and double-sliding door type home fence that can secure the installation space for the emergency door even if the width of the door pocket (length in the longitudinal direction of the platform) is small.

The present invention was devised to meet these needs. A first object is to provide a technique for a two-stage platform fence in which the inspection cycle can be made longer than before. A second object of the present invention is to provide a double-opening type platform fence technology which can secure the installation space for the emergency door even if the width of the door pocket is further short, in addition to the first object.

A first invention for solving the above-mentioned problems is a home fence that opens and closes an entrance/exit by slidingly moving a rear end side door and a front end side door from a door pocket part so as to advance and retreat. A first rack-and-pinion mechanism section for supporting the first pinion and a first rack provided on the rear end side door, and for slidingly moving the rear end side door with respect to the door pocket section. A second rack-and-pinion mechanism section having a second pinion pivotally supported on the door pocket section and a second rack provided on the tip side door; a motor for driving the first pinion; A transmission gear that is pivotally supported by the door pocket part and is meshed with the first pinion and the second pinion; and the sliding movement of the rear end side door when the first pinion is driven, and the transmission. It is a home fence which is interlocked with the sliding movement of the leading end side door due to the rotation of the second pinion via a gear.

A second invention is the platform fence according to the first invention, wherein the second pinion is pivotally supported on the door pocket part on the advancing side of the first pinion in the advancing/retreating direction of the sliding movement.

A third invention is the platform fence according to the first or second invention, in which the rear end side door and the front end side door have a nesting structure.

According to a fourth aspect of the invention, in the first rack-and-pinion mechanism section, the first rack provided on the rear end side door is geared downward from the upper side of the first pinion. In the second rack-and-pinion mechanism section, the second rack provided on the front end side door with the gear teeth facing downward is meshed with the second pinion from above. The transmission gear is the platform fence according to any one of the first to third inventions, which meshes with the first pinion and the second pinion at a position lower than the first rack and the second rack.

In a fifth aspect of the present invention, the first rack-and-pinion mechanism section, the second rack-and-pinion mechanism section, and the transmission gear are such that the front-end door is a double speed of the rear-end door. It is a platform fence according to any one of the first to fourth inventions, wherein the gear ratio is set so as to slide.

Further, a sixth aspect of the present invention is the platform fence according to any one of the first to fifth aspects, wherein one of the platform fences uses the platform longitudinal direction one direction side as the entrance/exit, and the other platform fence is the platform longitudinal direction. It is a double-opening platform fence which is configured such that the other side of the direction is the entrance/exit, and which has an emergency door part in the middle of the two platform blocks.

A seventh aspect of the present invention is the two platform fences according to any one of the first to fifth aspects, wherein one platform fence uses one side of the platform longitudinal direction as the boarding/alighting port and the other platform fence is the platform longitudinal direction. A double-opening home fence configured by arranging the other side of the direction as the entrance/exit, wherein the front end door of the one home fence and the front end door of the other home fence when fully opened. And are double-open platform fences that are stored so that they overlap each other when viewed from the platform.

The platform fence of the first invention uses a rack and pinion mechanism as a drive mechanism. The rack-and-pinion mechanism transmits power by meshing gears as compared with a drive mechanism that uses a timing belt, a wire, or a chain, so that the transmission efficiency is stable and highly efficient, and the durability is excellent. Therefore, it is possible to realize a two-tiered platform fence with a longer inspection cycle than before.

According to the second aspect of the present invention, the amount of advance of the tip side door can be made higher than that in the configuration in which the second pinion is on the advancing side of the first pinion and is not pivotally supported on the door pocket part.

According to the third aspect of the present invention, the movable door can be housed inside the door pocket, so that a safe home fence can be realized.

According to the fourth invention, since the gear teeth of the rack are directed downward, foreign matter can be less caught than in the configuration in which the gear teeth of the rack are directed upward. Further, since the first pinion, the second pinion, and the transmission gear are arranged below the first rack and the second rack, there is an arrangement configuration in which the rotating shaft pivotally supporting them does not penetrate the front door and the rear door. It will be possible.

According to the fifth aspect, it is possible to set the rear end door and the front end door to be completely or almost simultaneously stored or advanced.

According to the sixth aspect of the invention, it is possible to realize a double-open platform fence having an emergency door part in the middle of two platform bars having the effects of any one of the first to fifth aspects.
For example, in the case of a home fence installed in a platform where trains of vehicles with short door intervals such as 5 doors and 6 doors stop, a two-tiered home fence as disclosed in Patent Document 1 and Patent Document 2 has a wide opening It is necessary to shorten the length of the door pocket by the amount. However, since the component device of the door drive mechanism occupies the door pocket, when the emergency door is provided, the emergency door is added between the two door pockets, and the door pocket including the emergency door and the two door pockets. It becomes too long to make a wide aperture. Therefore, priority was given to wide openings, and only those without emergency doors could be made. In the case of the present invention, the drive mechanism is provided on the advance side of the door pocket, and the retractable side of the door pocket only accommodates the movable door. You can Moreover, the length of the door pocket can be further shortened by wrapping the doors on the front ends of the two platform fences.

According to the seventh aspect of the present invention, it is possible to provide a double-tiered platform fence that can be opened at both sides and that can secure a space for installing the emergency door even if the door accommodating portion including the door pocket portion and the emergency door portion has a short overall length.

It is a figure which shows an example of a structure of the platform fence in 1st Embodiment, Comprising: The front view seen from the orbital side. It is a figure in the fully closed state which fully closes the entrance and exit which selected and showed the main component of the platform of a 1st embodiment, and is a front perspective view seen from the track side. III-III sectional drawing of FIG. The side view which looked at the platform fence from the advancing side of the advancing/retreating direction. FIG. 3 is an enlarged top perspective view showing a configuration example around a drive mechanism of a home fence. It is a figure for demonstrating operation|movement of a platform fence, Comprising: The front perspective view in the intermediate state of full closing and full opening seen from the orbit side which showed the main component selected. It is a figure for demonstrating operation|movement of a platform fence, Comprising: The front perspective view in the fully open state seen from the orbit side which selected and showed the main component. It is a figure which shows the structural example of the double-opening platform fence in 2nd Embodiment, Comprising: The front perspective view seen from the orbit side which selectively showed the main component. It is a figure which shows the structural example of the double-opening platform fence in 3rd Embodiment, Comprising: The front perspective view seen from the orbit side which selectively showed the main component.

Hereinafter, examples of embodiments of the present invention will be described, but it goes without saying that the modes to which the present invention is applicable are not limited to the following embodiments.

[First Embodiment]
FIG. 1 is a diagram showing an example of a configuration of a platform fence according to the first embodiment, and is a front view seen from a track side. 1(1) is a fully closed state in which a sliding door type two-stage movable door including a front door 12 and a rear door 11 is advanced to close an entrance/exit, and FIG. 1(2) shows the movable door. The figures show a fully opened state in which the vehicle is retracted, stored in the door pocket part, and the entrance/exit is opened. For ease of understanding, illustration of a support structure for slidably supporting the movable door, a control device, a power supply device, etc. is omitted.

The platform fences 2 (2R, 2L) are installed at the track-side end of the platform 3, and the rear door 11 and the front door 12 are slid from the door pocket 10 to open and close by opening and closing. It is a two-stage sliding door type home fence.

There are two types of home fences 2, a right type home fence 2R and a left type home fence 2L.
The right type platform fence 2R is configured to advance the rear end side door 11 and the front end side door 12 to the right of the door pocket part 10 when viewed from the track side. The left type platform fence 2L is configured to advance the rear end side door 11 and the front end side door 12 to the left of the door pocket 10 when viewed from the track side. The right-type home fence 2R and the left-type home fence 2L basically have the same configuration, although the left and right are inverted. Therefore, in the description of the first embodiment, the right type platform fence 2R will be described in detail as the platform fence 2 of this embodiment on behalf of both. Further, the right direction of each drawing showing the right platform fence 2R will be described as "advance side", "tip side", and "front" in the advancing/retreating direction (direction of sliding movement) of the movable door.

FIG. 2 is a diagram in a fully closed state in which the entrance and exit shown by selecting the main components of the platform 2 are fully closed, and is a front perspective view seen from the track side. FIG. 3 is a sectional view taken along line III-III in FIG. FIG. 4 is a side view of the platform 2 viewed from the advancing side in the advancing/retreating direction. FIG. 5 is an enlarged top perspective view showing a configuration example around the drive mechanism of the platform 2. In addition, in these drawings, for ease of understanding, illustration of a support structure for slidably supporting the movable door, a control device, a power supply device, and the like is omitted. The support structure can be realized by combining a guide rail and a slider.

The door pocket 10 is a box-shaped structure having an opening on the advancing side in the advancing/retreating direction, and is installed on the platform 3.
The rear end side door 11 is a box-shaped structure that opens downward and on the advancing side in the advancing/retreating direction, and is supported inside the door pocket 10 so as to be slidable in the advancing/retreating direction.
The front end side door 12 is a plate-like body, and is supported inside the rear end side door 11 so as to be slidable in the forward and backward directions. That is, the door pocket part 10, the rear end side door 11, and the front end side door 12 form a so-called "nested structure" in which the next order elements are housed in this order.

As an element for slidingly moving these movable doors, the home fence 2 includes a first rack and pinion mechanism unit 21, a second rack and pinion mechanism unit 22, a transmission gear 23, and a motor. 30 and.

The first rack-and-pinion mechanism unit 21 has a first pinion 21p pivotally supported at the lower portion of the door pocket 10 and a first rack 21r provided on the rear end side door 11. Specifically, the first rack 21r is provided in the lower portion of the rear end side door 11 with the gear teeth facing downward, and is meshed with the first pinion 21p from above. That is, the first rack and pinion mechanism portion 21 is a mechanism portion that slides the rear end side door 11 with respect to the door pocket portion 10.

The second rack-and-pinion mechanism section 22 includes a second pinion 22p pivotally supported by a rotary shaft 22s fixed to a predetermined position of the door pocket section 10 and a second rack 22r provided on the front end side door 12. Have. Specifically, the second rack 22r is provided in the lower portion of the front end side door 12 with the gear teeth facing downward, and is meshed with the second pinion 22p from above.

The transmission gear 23 is a gear pivotally supported by a rotary shaft 23s fixed to a predetermined position of the door pocket part 10, and meshes with the first pinion 21p and the second pinion 22p. Specifically, when viewed from the orbital side, the transmission gear 23 is below the first rack 21r and the second rack 22r in the internal space of the door pocket 10 below the rear end door 11 and the front end door 12. At the position, it is pivotally supported between the first pinion 21p and the second pinion 22p. In this embodiment, a single gear is used, but a plurality of gears may be used.

Focusing on the relative positional relationship between the first pinion 21p and the second pinion 22p, the second pinion 22p is pivotally supported by the door pocket 10 at a position closer to the advancing side than the first pinion 21p in the advancing/retreating direction.

Then, the first rack-and-pinion mechanism unit 21, the second rack-and-pinion mechanism unit 22, and the transmission gear 23 reach the storage completion position where the rear end side door 11 is stored in the door pocket unit 10. The gear ratio is set so that the timing when the front end side door 12 reaches the storage completion position where the front end side door 12 is stored in the door pocket 10 is the same or substantially the same. Paradoxically, at this time, the timing at which the rear end side door 11 reaches the projection completion position from the door pocket portion 10 and the timing at which the front end side door 12 reaches the projection completion position from the door pocket portion 10 are the same or substantially the same. The gear ratios are set to be the same. Various specifications (for example, gear ratio, number of teeth, pitch circle diameter, rack length, module, center point distance, etc.) are set so that the front door 12 slides at the double speed of the rear door 11. Has been done.

The motor 30 is fixed to the door pocket 10, and its drive shaft 31 is connected to the rotary shaft 21s of the first pinion 21p. That is, the motor 30 drives the first pinion 21p of the first rack-and-pinion mechanism unit 21. In the present embodiment, the drive shaft 31 has the same structure as the rotary shaft 21s of the first pinion 21p, but may have a structure in which the drive shaft 31 is continuously connected via an intermediate gear.

FIG. 6 is a diagram for explaining the operation of the platform 2 (2R), and is a front perspective view seen from the orbital side in which the main constituent elements are selected and shown. The platform fence 2 (2R) is fully closed or fully open, which is an intermediate state between the fully closed state (see FIG. 1(1)) with the entrance/exit closed and the fully opened state (see FIG. 1(2)) with the entrance/exit open. The intermediate state is shown. In addition, the white arrow in FIG. 6 represents the moving speed of the rear end side door 11 by the length of one white arrow, and the two white arrows added to the front end side door 12 move twice as much as the rear end side door 11. It means moving at speed.

To change the home fence 2 from the fully closed state to the fully opened state (in other words, from the state where the movable door is fully advanced to the state where the movable door is fully accommodated in the door pocket part 10), the first pinion 21p is viewed from the track side. The motor 30 is driven so as to rotate counterclockwise.

When the first pinion 21p rotates counterclockwise, the first rack 21r is pulled toward the retracted side in the advancing/retreating direction, and the rear end side door 11 moves toward the retracting side in the advancing/retreating direction (the direction to be housed in the door pocket 10). Slide to move. The rotation of the first pinion 21p is transmitted to the second pinion 22p by the transmission gear 23. When the first pinion 21p rotates counterclockwise, the second pinion 22p also follows and interlocks so as to rotate counterclockwise. At this time, the front end side door 12 is slid at a double speed of the rear end side door 11.

Then, the motor 30 is rotated by a predetermined amount, or a sensor (not shown) that detects that the rear end position of the rear end side door 11 has reached a predetermined position in the fully open state is provided, and the detection by the sensor is performed. When the motor 30 is rotated until a certain amount, as shown in FIG. 7, each movable door of the home fence 2 is housed in a predetermined position in a fully opened state (storage completed state). Then, the motor 30 is stopped.

In order to return the platform 2 (2R) from the fully opened state to the fully closed state, the motor 30 may be driven so that the first pinion 21p rotates clockwise when viewed from the track side.

As described above, according to this embodiment, the rack-and-pinion mechanism is used as the drive mechanism for slidingly moving the movable door. The rack-and-pinion mechanism transmits power by meshing gears, as compared with a drive mechanism that uses a timing belt, a wire, or a chain, so that the transmission efficiency is stable and highly efficient, and is even more durable. Therefore, it is possible to realize a two-tiered platform fence with a longer inspection cycle than before.

Further, in the forward/backward direction, since the second pinion 22p is pivotally supported by the door pocket 10 at a position (forward position) on the advancing side of the first pinion 21p, the second pinion 22p is positioned on the retreating side of the first pinion 21p. Therefore, the amount of advance of the front-end side door 12 can be increased more than in the case where the door pocket 10 is pivotally supported.

Further, since the door pocket 10, the rear end side door 11, and the front end side door 12 have a nested structure, all the movable doors can be housed inside the door pocket, and a safe home fence can be realized.

[Second Embodiment]
Next, a second embodiment to which the present invention is applied will be described. The same components as those in the first embodiment are designated by the same reference numerals as those in the first embodiment, and redundant description will be omitted.

FIG. 8: is a figure which shows the structural example of the double-opening platform fence 5, and is the front perspective view seen from the orbit side which selectively showed the main component. FIG. 8(1) shows the fully closed state, and FIG. 8(2) shows the fully opened state.

The double-open platform fence 5 is a movable fence in which the right-side platform fence 2R and the left-side platform fence 2L are provided on one side and the other side in the platform longitudinal direction of the side-bag portion 10B with the door pocket section 10B being common. , Is installed between two adjacent entrances and exits.

Specifically, the door pocket 10B of the double-open platform fence 5 is open in two directions, one side and the other side in the platform longitudinal direction. The double-open platform fence 5 has the right platform fence 2R on one side of the door pocket 10B in the longitudinal direction of the platform (on the right side of the drawing in FIG. 8), and opens and closes the entrance on the one side. Further, the double-open platform fence 5 has a left platform fence 2L on the other side of the door pocket 10B in the longitudinal direction of the platform (on the left side of the drawing in FIG. 8), and opens and closes the entrance on the other side. The double-open platform fence 5 is provided with an emergency door section 19 in the middle of the door pocket section 10B between the right platform fence 2R and the left platform fence 2L.

According to the present embodiment, it is possible to realize a platform fence that has the same effect as that of the first embodiment and is a double-open platform fence having an emergency exit.

[Third Embodiment]
Next, a third embodiment to which the present invention is applied will be described. The same components as those in the first and second embodiments are given the same reference numerals as those in the first and second embodiments, and the duplicated description will be omitted.

9: is a figure which shows the structural example of the double-opening platform fence 5C, and is the front perspective view seen from the orbit side which selectively showed the main component. 9(1) shows the fully closed state, and FIG. 9(2) shows the fully opened state.

The double-open platform fence 5C is a platform fence having an emergency door portion 19 between two adjoining entrances and exits as in the second embodiment, but is different from the second embodiment in that two right type platform fences 2 are provided. .. More specifically, the double-opening platform fence 5C of the third embodiment has a first right platform fence 2R on the right side in FIG. 9 on one side in the platform longitudinal direction of the door pocket 10B, The first right platform fence 2R opens and closes the entrance on one side. The double-opening platform fence 5C is the second right platform fence 2 on the left side in FIG. 9 and is configured by reversing the advancing/retreating direction of the first right platform fence 2R to the left and right in FIG. The second right platform fence 2RA is provided, and the second right platform fence 2RA opens and closes the doorway on the other side of the door pocket 10B in the longitudinal direction of the platform. The double-open platform fence 5 includes an emergency door section 19 in the middle of the two right-type platform fences 2 (2R, 2RA) of the door pocket section 10B.

Here, paying attention again to the nesting structure of the movable door in the right type home fence 2R (see FIG. 3), the front end side door 12 is supported closer to the track side than the center of the rear end side door 11 in the home width direction. ing. Therefore, in the fully opened state of the double-opening home fence 5C, the front end side door 12 (12R) of one of the two right type home fences 2R and the front end side door 12 (12L) of the other right type home fence 2RA are , They are stored so that they overlap each other when viewed from the platform (or the orbital side). That is, the total length of the door housing portion including the door pocket portion 10B and the emergency door portion 19 can be made shorter than that in the second embodiment.
Therefore, according to the present embodiment, the same effect as that of the first and second embodiments can be obtained, and the total length (length in the platform longitudinal direction) of the door housing portion including the door pocket portion and the emergency door portion is short. However, it is possible to realize a double-opening and double-tiered platform fence that can secure the installation space for emergency doors.

The mode to which the present invention is applicable is not limited to the above-described embodiment, and appropriate addition, omission, and modification of the constituent elements can be performed.

2... Platform fence 2L... Left type platform fence 2R... Right type platform fence 3... Platform 5... Double-opening platform fence 5C... Double-opening platform fence 10... Door pocket part 11... Rear end side door 12... Tip side door 19... Emergency door part 21 ... 1st rack and pinion mechanism part 21p... 1st pinion 21r... 1st rack 21s... Rotating shaft 22... 2nd rack and pinion mechanism part 22p... 2nd pinion 22r... 2nd rack 22s... Rotating shaft 23 …Transmission gear 23s…Rotary shaft 30…Motor 31…Drive shaft

Claims (7)

A home fence that opens and closes an entrance and exit by sliding the rear end side door and the front end side door forward and backward from the door pocket part,
A first rack for pivotally supporting the door pocket part and a first rack provided for the rear end side door, and a first rack for slidingly moving the rear end side door with respect to the door pocket part; And Pinion mechanism department,
A second rack-and-pinion mechanism section having a second pinion pivotally supported on the door pocket section and a second rack provided on the tip side door;
A motor for driving the first pinion,
A transmission gear pivotally supported by the door pocket portion and meshed with the first pinion and the second pinion;
A home fence in which the sliding movement of the rear end side door due to the driving of the first pinion and the sliding movement of the front end side door due to the rotation of the second pinion via the transmission gear are interlocked. In the forward/backward direction of the slide movement, the second pinion is pivotally supported on the door pocket part on the advancing side with respect to the first pinion.
The platform fence according to claim 1. The rear end side door and the front end side door have a nested structure,
The platform fence according to claim 1 or 2. In the first rack and pinion mechanism section, the first rack provided on the rear end side door with gear teeth facing downward is meshed with the first pinion from above.
In the second rack-and-pinion mechanism section, the second rack provided on the front end side door with the gear teeth facing downward is meshed with the second pinion from above.
The transmission gear meshes with the first pinion and the second pinion at a position lower than the first rack and the second rack.
The platform fence according to any one of claims 1 to 3. The first rack-and-pinion mechanism section, the second rack-and-pinion mechanism section, and the transmission gear have a gear ratio so that the front-end door slides at a speed double that of the rear-end door. Is set,
The platform fence according to any one of claims 1 to 4. The two platform fences according to any one of claims 1 to 5, wherein one platform fence uses the platform longitudinal direction one direction side as the entrance and exit, and the other platform fence the platform longitudinal direction other direction side. A double-opening platform fence configured to be arranged as the entrance and exit,
Equipped with an emergency door in the middle of the two home fences,
Double-sided platform fence. The two platform fences according to any one of claims 1 to 5, wherein one platform fence uses the platform longitudinal direction one direction side as the entrance and exit, and the other platform fence the platform longitudinal direction other direction side. A double-opening platform fence configured to be arranged as the entrance and exit,
At the time of fully opening, the front end side door of the one home fence and the front end side door of the other home fence are stored so as to overlap front and back when viewed from the platform,
Double-sided platform fence.

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