JPH0678060B2 - Vehicle entrance / exit safety device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a vehicle entrance / exit safety device for preventing a fall accident or the like into a gap between an entrance / exit and a platform, and more particularly, a protrusion of a tread. The present invention relates to a vehicle entrance / exit safety device in which the amount is adjusted according to the amount of the gap between the entrance / exit and the platform.

(Prior Art) There is a gap between a vehicle entrance / exit such as an electric train and a monorail and the platform, and this gap is large in a place where the platform is curved. Such a gap is dangerous for passengers, especially children and people with physical disabilities, and there is a risk of stepping into or dropping into the gap when getting on and off.

Conventionally, in order to prevent this kind of danger, various vehicle entrance / exit safety devices have been proposed, which are configured to move to open / close doors to project the treads and bridge the treads in the gap between the vehicle entrance / exit and the platform. Has been done.

(Problems to be Solved by the Invention) However, while the gap between the vehicle entrance and exit and the platform differs depending on the station or the degree of curve, etc., the vehicle entrance and exit safety devices proposed so far. Then, in each case, the amount of protrusion of the tread is fixed,
For this reason, there are cases where the treads do not span well across the entrance / exit and the platform, which is not always safe.

The present invention has been made to solve the above-mentioned problems of the prior art, and its object is to detect the gap amount between the vehicle entrance / exit safety gate and the platform, and adjust the protrusion amount of the tread according to this gap amount. It is an object to provide a vehicle entrance / exit safety device that can be changed.

Configuration of the Invention (Means for Solving the Problems) In order to achieve the above object, in a vehicle entrance / exit safety device of the present invention, a tread board that can enter / exit outside the vehicle is provided under a floor board of the vehicle entrance / exit having an opening / closing door. In the vehicle entrance / exit safety device, an interlocking mechanism is provided between the tread plate and the opening / closing door, which interlocks with the opening / closing operation of the opening / closing door to move the tread plate in and out. It is characterized in that a protrusion amount adjusting mechanism for adjusting the protrusion amount of the tread according to the gap between the platform and the platform is provided.

In the present invention, the "projection amount adjusting mechanism" is, for example, a device that detects a gap amount between the vehicle entrance and exit and the platform and controls the interlocking mechanism based on the detection signal. The mechanism is a sensor that optically detects a gap amount between the entrance / exit and the platform and generates a detection signal corresponding to the gap amount, and the interlocking mechanism detects the protruding movement of the tread according to the detection signal of the sensor. This is composed of a clutch mechanism for stopping, whereby the protrusion amount of the tread plate is adjusted according to the gap amount between the entrance / exit and the platform.

(Operation) The protrusion amount adjusting mechanism is configured to detect the gap amount between the vehicle entrance / exit and the platform and control the interlocking mechanism based on this detection signal. When the vehicle stops, the protrusion amount adjusting mechanism is configured. Detects the amount of clearance between the vehicle entrance and exit and the platform. Then, the interlocking mechanism is controlled according to the gap amount to project the tread plate, and as a result, the tread plate can be efficiently bridged between the vehicle entrance / exit and the platform.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing a vehicle equipped with a vehicle entrance / exit safety device according to the present invention. In the figure, reference numeral 10 is a vehicle, and doors 12 and 12 that automatically open and close the entrance / exit 11 by air pressure, hydraulic pressure, etc.
Is equipped with, and the entrance / exit 13 of the tread 20 below the entrance / exit 11
Is equipped with.

On the other hand, a footboard 20 is installed at a position below the floor board 14 of the entrance / exit 11, and the footboard 20 interlocks with the opening / closing door 12 by the interlocking mechanism 30 (see FIGS. 5 and 6) and emerges from the entrance / exit 13. .

As shown in FIG. 2, the tread plate 20 is composed of a portion 21 protruding from the doorway 13 and a base end portion 22 located below the floor plate 14, and the portion 21 has a spindle 23 at the tip of the base end portion 22. Is rotatably connected via the tread plate 20 to the platform 60.
When protruding upward, the portion 21 rotates with respect to the base end portion 22 to come into contact with the upper surface of the platform 60. The entrance 13 is equipped with a roller 13a for smoothing the stepping of the tread 20 (see FIG. 3).

The interlocking mechanism 30 changes the direction of the rotational movement of the vertical swing arm 31 (see FIGS. 5 and 6) that swings by the opening / closing operation of the opening / closing door 12 and the base end portion 31a of the vertical swing arm 31. A bevel gear mechanism 32 (see FIG. 6), a lateral swing arm 33 that swings by the bevel gear mechanism 32 (see FIGS. 2, 4, and 6), and a horizontal swing arm 33 Moving plate 34
(See FIGS. 2, 3, and 4).

Here, as shown in FIG. 5, the vertical swing arm 31 has a base end 31a rotatably supported by a vehicle frame or the like, and a roller 31b provided at a free end provided on a side edge of the opening / closing door 12. It is movably engaged with the upright guide groove 12a. When the opening / closing door 12 opens and closes, the roller 31b moves up and down in the upright guide groove 12a, whereby the vertical swing arm 31 swings around the base end 31a as a fulcrum, and the base end 31a (provided on the base end 31a is provided. The horizontal shaft 35) rotates.

The bevel gear mechanism 32 is a bevel gear provided at the end of the horizontal shaft 35.
32a and a bevel gear 32b provided on the upright shaft 36. The rotary motion of the horizontal shaft 35 accompanying the swing of the vertical swing arm 31 is redirected and transmitted to the vertical shaft 36.

The lateral swing arm 33 has its base end fixed to the vertical shaft 36 and swings by the rotation of the vertical shaft 36. At the free end of the lateral swing arm 33, a connecting portion 33a having a slot-like engagement groove 33b is provided.

In addition, the moving plate 34 is positioned below the floor plate 14 via rollers (not shown) to form the vehicle frame 10a (see FIG. 3).
Equipped to be movable. The tread plate 20 is mounted on the upper surface of the moving plate 34, and the second buffer mechanism 50 is fixed to the center position of the rear surface of the moving plate 34. The tread plate 20 is provided so as to be movable in the directions of arrows A and B shown in FIG. 2 with respect to the moving plate 34, and a coil spring 40, which is a first cushioning mechanism, is interposed therebetween. In addition, the second buffer mechanism 50
Is a guide shaft 51 extending in the directions of arrows A and B shown in FIG.
The moving piece 52 that moves along the guide shaft 51, and this moving piece
It is composed of springs 54a and 54b interposed between 52 and the case 53. A pin 52a is provided on the moving piece 52 in a protruding manner, and the connecting portion 33a of the lateral swing arm 33 is engaged with the pin 52a. When the horizontal swing arm 33 swings, the connecting portion 33a
The swinging motion is converted into a linear motion by the conversion mechanism composed of the pin 52a and the pin 52a, and the moving plate 34 moves in the directions A and B shown in FIG.

As shown in FIG. 6, the interlocking mechanism 30 is equipped with a protrusion amount adjusting mechanism 70 for adjusting the protrusion amount of the tread 20. This protrusion amount adjusting mechanism 70, a sensor 71 that detects the amount of the gap between the entrance / exit 11 and the platform 60 by optical means,
A clutch mechanism 72 for interrupting the transmission of rotation from the vertical swing arm 31 to the bevel gear mechanism 32 based on the detection signal of the sensor 71.
It consists of and.

In addition, reference numeral 100 in FIG.
Sounds when opening or closing. This danger warning buzzer is especially useful for alerting the visually impaired to the attention of the entrance / exit position and the entry / exit operation.

Next, the operation of the vehicle entrance / exit safety device of the above embodiment will be described.

When the vehicle 10 stops on the platform 60, the opening / closing door 12 opens, and the vertical swing arm 31 swings in conjunction with the opening operation of the opening / closing door 12, and the swing motion of the vertical swing arm 31 causes the vertical swing arm 31 to swing. The horizontal shaft 35 provided at the base end portion 31a rotates. This horizontal axis 3
The rotational movement of 5 is changed in direction via the bevel gear mechanism 32 and transmitted to the vertical shaft 36, and the vertical shaft 36 rotates. When the vertical shaft 36 rotates, the horizontal swing arm 33 swings accordingly, and this swing motion is converted into a linear motion by the connecting portion 33a and the pin 52a, and the moving plate 34 is moved to the position shown in FIG. Move in the direction of arrow A (direction of the entrance / exit 11). As a result, the footboard 20 projects from the doorway 13, and the entrance / exit 11 and the platform 60
The footboard 20 is bridged between the passengers and the passengers, and passengers can safely get on and off.

Here, the amount of protrusion of the tread 20 is set in accordance with the largest gap among the gaps between the entrance / exit 11 and the platform 60, and when the gap is smaller than this maximum value, the protrusion amount adjusting mechanism 70 operates. . That is, when the vehicle 10 stops on the platform 60, the sensor 71 detects the gap amount,
A detection signal is output to the clutch mechanism 72. Clutch mechanism 72
From the vertical swing arm 31 to the bevel gear mechanism based on the detection signal.
Interrupt the transmission of rotation to 32. This prevents the tread 20 from protruding more than necessary.

When the tread plate 20 hits an obstacle and is prevented from projecting, the spring 40, which is the first buffer mechanism, absorbs the movement of the moving plate 34, while the spring 54 of the second buffer mechanism 50 is used.
The a and 54b absorb the swing of the horizontal swing arm 33 so that an unreasonable force does not act on the interlocking mechanism 30.

When the opening / closing door 12 is closed, the interlocking mechanism 30 causes the tread 20 to retract into the doorway 13 so that it does not project to the outside of the vehicle 10.

In the above embodiment, the bevel gear mechanism 32, the vertical shaft 36,
Instead of equipping the lateral swing arm 33 and the like, as shown in FIG. 7, a cam mechanism 90 may be provided to convert the rotational movement of the horizontal shaft 35 into a linear movement to move the moving plate 34. Good. That is, a cam groove 92 is provided in a spiral shape on the outer peripheral surface of the columnar member 91 rotated by the horizontal shaft 35, and the driven groove 93 fixed to the moving plate 34 is engaged with the cam groove 92. By doing so, the vertical swing arm 31 swings by the opening / closing operation of the opening / closing door 12, the horizontal shaft 35 and the columnar member 91 rotate, and the follower 93 moves linearly along the axis of the columnar member 91. By moving plate 34
Moves in the directions of arrows A and B shown in FIG.

Also in this case, the clutch mechanism 72 of the protrusion amount adjusting mechanism 70 can adjust the rotation angle of the columnar member 91 and the start time of rotation to control the moving range of the driven joint 93, that is, the protrusion amount of the tread 20.

FIG. 8 shows another embodiment of the vehicle entrance / exit safety device according to the present invention. In this embodiment, a hydraulic cylinder 80 is used as the interlocking mechanism 70 and the protrusion amount adjusting mechanism 70, and the hydraulic cylinder 80 is a control device including a microcomputer.
It is controlled by 81.

The control device 81 has a sensor 82 for detecting that the opening / closing door 12 is opened at its input end, a sensor 83 for detecting that the door 12 is closed,
A sensor 84 for detecting a gap amount between the entrance / exit 11 and the platform 60 by an optical means is connected, and when a detection signal is input from these sensors 82, 83, 84, the output end of the hydraulic cylinder 80 is input. A control signal is sent to the flow rate control valves 85 and 86 provided in the pressure oil input / output port.

Next, the operation of the vehicle entrance / exit safety device of another embodiment will be described.

When the vehicle 10 stops at the platform 60 and the opening / closing door 12 starts to open, the sensor 82 detects the opening / closing operation of the opening / closing door 12 and sends a detection signal to the control device 81. The control device 81 is
Based on this detection signal, a control signal is sent to the flow control valves 85 and 86. As a result, the hydraulic cylinder 80 operates and the drive oil (piston shaft) 80a moves forward to move the moving plate 34 in the direction of arrow C shown in FIG. At this time, a detection signal of the gap amount between the entrance / exit 11 and the platform 60 is also sent from the sensor 84 to the control device 81, and the amount of forward movement of the drive shaft 80a (moving plate 34
The amount of movement in the direction of arrow C) is controlled according to the gap amount, so that the tread 20 projects corresponding to the gap amount. In this way, the treads are bridged between the entrance / exit 11 and the platform 60, and passengers can get on and off safely.

When the projection operation is blocked by an obstacle or the like during the projection of the tread plate 20, the movement of the moving plate 34 is absorbed by the spring 40 which is the first buffer mechanism so that the hydraulic cylinder 80 and the like are not subjected to an excessive force. ing.

When the opening / closing door 12 is closed, the sensor 83 detects the closing operation and sends a detection signal to the control device 81. The control device 81 sends a control signal to the flow rate control valves 85 and 86 based on this detection signal,
As a result, the drive shaft 80a retracts, the moving plate 34 moves in the direction of arrow D shown in FIG. 7, and the tread plate 20 returns to the inside of the doorway 13 so as not to project to the outside of the vehicle 10.

EFFECTS OF THE INVENTION As described above, according to the vehicle entrance / exit safety device of the present invention, the vehicle is equipped with the protrusion amount adjusting mechanism that adjusts the protrusion amount of the tread according to the gap between the vehicle entrance / exit and the platform. As compared with the above device, the tread can be efficiently bridged between the entrance and exit and the platform, and as a result, the safety can be improved.

[Brief description of drawings]

1 to 6 show an embodiment of the present invention.
FIG. 1 is a perspective view showing a vehicle equipped with a vehicle entrance / exit safety device according to the present invention, FIG. 2 is a moving plate, a partially cutaway plan view of a tread part, a partially omitted plan view, and FIG. 3 is a side view thereof. FIG. 4 is a front view of the same, FIG. 5 is a side view showing the relationship between the opening / closing door and the vertical swing arm of the interlocking mechanism, and FIG. 6 is a partially omitted plan view showing the interlocking mechanism and the protrusion amount adjusting mechanism. FIG. 7 is a perspective view showing another embodiment of the interlocking mechanism, and FIG. 8 is a partially cutaway, partially omitted plan view of an essential part showing another embodiment of the present invention. . 10 …… Vehicle, 11 …… Elevating door 20 …… Tread, 30 …… Interlocking mechanism 40,50 …… Cushioning mechanism, 70 …… Projection amount adjusting mechanism 80 …… Interlocking mechanism

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor ▲ Susumu Takahara 1217, Hirahara, Minami-ku, Fukuoka City, Fukuoka Prefecture (56) References: 59-193768 (JP, U) JP, U)

Claims (1)

[Claims] 1. Under a floor plate of a vehicle entrance / exit having an opening / closing door,
A vehicle provided with a stepping plate that can be put in and out on the outside of the vehicle, and provided between this stepping plate and the opening and closing door is an interlocking mechanism that moves the stepping plate in and out in conjunction with the opening and closing operation of the opening and closing door, and a cushioning mechanism is provided in this interlocking mechanism. The entrance / exit safety device is equipped with a protrusion amount adjusting mechanism for adjusting the protrusion amount of the tread according to the gap between the vehicle entrance / exit and the platform, and the protrusion amount adjusting mechanism includes a gap between the entrance / exit and the platform. A sensor that optically detects the amount and generates a detection signal according to the gap amount, and a clutch mechanism that stops the protruding movement of the tread by the interlocking mechanism according to the detection signal of the sensor,
Accordingly, the vehicle entrance / exit safety device is characterized in that the amount of protrusion of the tread is adjusted according to the amount of the gap between the entrance / exit and the platform.