JPH09194198A - Step for going up and down - Google Patents

Abstract

PROBLEM TO BE SOLVED: To go up and down the step for going up and down on the part of a person capable of hardly going up and down by himself or herself while a level is being kept horizontal without depending on man-power. SOLUTION: The step for going and down is equipped with a horizontal floor 10 roughly coinciding with the floor surface of a companion way of a passenger airplane, a stair case part 11 which has a plurality of treads 12, and a resting board 14 sufficiently wide to accept wheel chairs and the like, and is mounted to the horizontal floor at its upper end, and with a hydraulic cylinder revolving the stair case part 11 around the upper end in the vertical direction. In this case, the stair case part 11 is formed into a parallel link in such a way that a plurality of the treads and the resting board are kept horizontal at all times.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lifting step used by a passerby to pass through a step between a high level surface at a high position and a low level surface at a low position.

[0002]

2. Description of the Related Art Conventionally, ascending and descending steps have been used as means for getting passengers in and out of passenger aircraft. Conventional elevating steps have a horizontal floor with a height that approximately matches the floor inside the passenger plane (high level plane) and stairs that connect this horizontal floor to low level planes such as the ground. Was going up and down on the horizontal floor and stairs.

[0003]

By the way, in the above-mentioned conventional step of raising and lowering, a person with a disability who is difficult to raise and lower by himself (hereinafter referred to as a person who is difficult to raise and lower by himself) is carried by a plurality of persons. I was going up and down the passenger plane. In other words, there is a situation in which it is necessary to rely on the assistance of people around us, such as relatives and airline employees, and this has been one factor that discourages passengers' willingness to use passenger planes.

Further, it is almost impossible to lift a wheelchair or the like on which a person who is difficult to lift up and down by himself while maintaining the levelness completely, which may cause anxiety to the person who cannot lift up and down by himself. In addition, the physical burden on relatives and employees of airlines was considerable. The present invention has been made in view of the above-mentioned circumstances, and an object thereof is to provide an elevating step that can be ascended / descended by a person who is difficult to ascend / descend by himself / herself while maintaining horizontality without depending on human power.

[0005]

According to the first aspect of the present invention,
In an elevating step used by a passerby to pass through a step between a high level surface and a low level surface, a horizontal floor having a height substantially corresponding to the high level surface, a plurality of treads and a mounting plate wider than the treads. A stairway part having an upper end attached to the horizontal floor, and a drive means for rotating the staircase part in the vertical direction about the upper end, the stairway part including the plurality of treads and the front. It is characterized in that parallel links are configured such that each of the writing plates is always horizontal.

According to a second aspect of the present invention, in the above structure, a holding means for limiting movement of a passerby on the placing plate is provided. According to a third aspect of the present invention, in the first aspect of the present invention, there is provided a notifying means attached to the back surface of the staircase portion and notifying people around the stairway portion while the staircase portion is rotating downward. Is characterized by.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing the structure of an elevating step according to an embodiment of the present invention, and FIG. 2 is a top view of the same. In these figures, 1 is an airliner, 2 is an elevating step that allows the passenger to ascend and descend by contacting the side surface of the passenger plane 1 at the entrance / exit side, and a cab 4 in which a control mechanism 3 for controlling each part is installed. , A torque controller 5, an engine 6, wheels 7, 7, ..., A jack 8, and the like, and travels based on an instruction from a steering mechanism 3 by a driver 9 in a cab 4.

In the lifting step 2, 10 is the passenger plane 1.
It is a horizontal floor of approximately the same height as the floor of the entrance / exit, and one end contacts the lower end (high-level surface) of the entrance / exit. 11 is a horizontal floor 10
Is a stairway portion, one end of which is rotatably attached to the other end, and its rotating surface is parallel to the paper surface of FIG. Stairs 11
The tread 12, with a predetermined spacing d1 in the longitudinal direction,
12, ... Are mounted horizontally. The depth d2 (307 mm in this case) of each tread 12 except for the lowermost one is set to be slightly narrower than the interval d1. The depth of the bottom tread 12 is 457 mm.

FIG. 3 is a conceptual diagram for explaining the structure of the staircase portion 11. In this figure, the treads 12, 12, ...
Are mounted on the columns 13a and 13b through the attachments. The columns 13a, 13b and the fittings are engaged with each other with a margin so that they can rotate with respect to each other.

Here, the column 1 that supports the upper tread 12
Points A and B on the axes of 3a and 13b, and points C and D on the axes of the columns 13a and 13b supporting the lower tread 12. From the above, the treads 12, 1
2 must always be horizontal. Therefore, point A,
The line segment that connects B (line segment AB) and the line segment that connects points C and D (line segment CD) have the same length (length d3), and points A and C
The line segment connecting points B and D and the line segment connecting points B and D are set to have the same length to form a parallel link.

Referring again to FIGS. 1 and 2, a mounting plate 14 is attached to the lower portion of the lowermost step plate 12.
The mounting plate 14 has a sufficient area for mounting a wheelchair or the like in the pulled-out state. At the tip of the mounting plate 14,
A safety fence (holding means) 14a that can be pulled out from the tip of the mounting plate 14 is stored. When the safety fence 14a is pulled out, only the rear end thereof remains in the mounting plate 14 and is rotatable around the rear end in the paper surface direction in FIG. Further, the mounting plate 14 is provided with a means for fixing the safety fence 14a in a state where the safety fence 14a is pulled out and erected vertically.

Further, 15 is a side wall provided on both sides of the staircase portion 11, 16 is a roof, 17 is a handrail attached to the side wall 15 and the roof 16, and 18 is a tip of the staircase portion 11 for easy visual recognition. Revolving lights (notifying means) provided on the side and back surfaces, which rotate together with the stairs 11. The revolving light 18 is turned on while the staircase portion 11 is descending and rotating. 19 is an operation panel,
An operator is provided to control the up / down rotation (swing up / down) of the staircase portion 11.

Numerals 20, 20, ... Are fluorescent lamps, respectively, which are lit at night to ensure the safety of walking and running. Further, 21 is a surveillance camera, which is used for rearward confirmation of the driver 9. Reference numeral 22 denotes a hydraulic cylinder (driving means), the rear end of the main body is attached to a non-movable portion fixed by the jack 8, and the tip of the rod is attached to the stair portion 11. This hydraulic cylinder expands and contracts using the engine 6 and the torque controller 5 that operate based on instructions from the control equipment 3 and the operation panel 19 as power sources.

In the above-mentioned structure, usually, as shown in FIGS. 1 and 2, the rod of the cylinder 22 is the shortest, and the staircase portion 11 is bridged from the horizontal floor 10 to the ground (low level surface). . Therefore, at the time of boarding, the passengers need to check the safety fence 14a, the mounting plate 14, the stairs 11, the horizontal floor 1
0 walk in sequence and board passenger plane 1. In addition, when getting off from the passenger plane 1, the user walks in the reverse order to get on the ground.

Here, for example, the operation of a person in a wheelchair who has difficulty in going up and down when he / she is boarding will be described with reference to FIGS. 4 and 5. 4 and 5 are diagrams for explaining the operation of the configuration shown in FIGS. 1 and 2. A person who has difficulty in going up and down by himself operates a wheelchair, passes through the safety fence 14a, and mounts the board 1.
When the vehicle reaches the top of 4, the driver 9 or a staff member
Start up a vertically and fix it. This prevents the wheelchair from falling due to retrograde movement. Further, at that time, the driver or a staff member instructs the person who is difficult to move up and down by himself to hold the handrail 17. The handrail 15 is provided on the mounting plate 14 side so as to be easily grasped by a person in a wheelchair.

Next, the driver or a staff member operates the operation panel 19 to cause the rod of the hydraulic cylinder 22 to project,
The entire passage including the staircase portion 11 is rotated upward. On this occasion,
Since the stairs 11 form a parallel link, each tread 1
2 and the mounting plate 14 are rotated while maintaining the horizontal state. This rotation is continued until the stairs 11 are horizontal, that is, the upper surfaces of the treads 12 are located on the same horizontal plane. When the ascending rotation is completed, the person having difficulty in lifting and lowering himself / herself operates the wheelchair by himself, and passes through the plane constituted by the treads 12, 12, ... And the horizontal floor 10 in order and enters the passenger plane.

By the way, the driver 9 or a staff member operates the operation panel 19 or the control facility 3 when a person who has difficulty in going up and down by himself reaches the horizontal floor 10 and after confirming the safety by visually or referring to the image from the monitoring camera 21. Then, the stairs section 11
The entire passage including is lowered and rotated. Interlocking with this operation, the revolving light 18 is turned on to inform the people around the descent of the passage. It should be noted that not only the revolving light 18 but also other known notification mechanisms such as a voice warning may be used. When the mounting plate 14 approaches the ground and the angle of the staircase portion 11 with respect to the ground reaches a predetermined angle, the descending rotation is stopped and the rotary lamp 8 is turned off. The driver 9 or a person in charge is the safety fence 14a.
Is released and the safety fence 14a is laid between the mounting plate 14 and the ground to prepare for the next passenger.

As described above, according to the embodiment of the present invention, it is possible to use the staircase portion 11 common to the passenger who can ascend and descend the stairs by himself and the person who is difficult to ascend and descend by himself.
When elevating a person who has difficulty in elevating himself / herself, it is possible to ascend / descend while reliably maintaining the levelness. In addition, it is possible to significantly reduce the physical burden on a driver, a staff member, a relative, or the like in the surroundings when the person who is difficult to lift and lower by himself is lifted.

The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific structure is not limited to this embodiment, and the design change and the like without departing from the gist of the present invention. Even so, it is included in the present invention. For example, in the above-described embodiment, the placing plate is attached to the lowermost step plate of the stairs, but the placing plate may be used as the lowermost step plate. In this case, the surface formed by each tread plate and the surface of the mounting plate coincide with each other at the end of the ascending rotation, and the wheelchair or the like can move more smoothly.

Further, the mounting plate may be constructed so as to be retractable so that the mounting plate can be pulled out only when the person who is difficult to lift and lower by himself / herself moves up and down. Further, a driving means other than a hydraulic cylinder such as a pneumatic cylinder may be used. Further, the drive means may be controlled so that the rotation speed of the staircase portion 11 is gradually accelerated at the start of rotation and is gradually reduced at the end of rotation.

[0021]

As described above, according to the present invention,
The staircase constitutes a parallel link so that each tread and the mounting board are horizontal, and the driving means rotates the staircase in the vertical direction about the upper end of the stairway, so that the stairway passes over the mounting board. It is possible to easily raise and lower a person (person who is difficult to raise and lower by himself) while maintaining the levelness (claim 1). Further, the holding means restricts the movement of a passerby on the above-mentioned mounting plate, or the notification means notifies the downward rotation of the stairs to reduce the probability of accidental accidents at the time of ascending and descending. (Claims 2 and 3).

[Brief description of the drawings]

FIG. 1 is a side view showing a configuration of a lifting step according to an embodiment of the present invention.

FIG. 2 is a top view of the configuration shown in FIG.

FIG. 3 is a conceptual diagram for explaining a parallel link structure in an elevating step according to an embodiment of the present invention.

FIG. 4 is a side view showing the configuration of the lifting step.

5 is a top view of the configuration shown in FIG.

[Explanation of symbols]

 10 Horizontal Floor 11 Stairs 14 Mounting Plate 14a Holding Means 18 Rotating Light 22 Hydraulic Cylinder

Claims (3)

[Claims] 1. A horizontal floor having a height substantially corresponding to the high level surface, a plurality of treads and the treads in a step of raising and lowering used for a passerby to pass through a step between the high level surface and the low level surface. A stairway part having a wider mounting plate and having an upper end attached to the horizontal floor; and a drive means for rotating the staircase part in the vertical direction with the upper end as a center. An elevating step, characterized in that parallel links are configured so that each of the plurality of treads and the mounting plate described above is always horizontal. 2. The elevating step according to claim 1, further comprising holding means for restricting movement of a passerby on the mounting plate. 3. The elevating step according to claim 1, further comprising an informing unit attached to the back surface of the staircase portion, for informing a person in the surroundings of the fact while the staircase portion rotates downward. .