JP2000142238A - Step used as lift - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a step used as a lift making stairs for a bus and various other vehicles usable in three ways according to users for an adult, the old and a child, and a wheelchair user. SOLUTION: Steps 1 constituting stairs are extensively formed like an accordion, and a stepboard 10 and arms 6, 7 supporting a lift are provided inside guide rails 4 installed on both sides of the stairs to change the number of steps and step difference of the stais by the operation of the lift. When the lift is raised to a floor face, the steps 1 are folded on the upper face of the lift.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a step for getting on and off a bus or the like.

[0002]

2. Description of the Related Art Conventionally, fixed steps are used.

[0003]

This has the following disadvantages. (B) Because of the fixed type, the only way to make it easier for older people and children to get on and off was to prepare a step platform. (B) Wheelchairs were not considered at all, and it was particularly inconvenient when people using wheelchairs got on and off. The present invention has been conceived to eliminate these disadvantages.

[0004]

SUMMARY OF THE INVENTION The steps are made to be telescopic like an accordion, and the lifts are installed inside the stairs so that they do not come out of the front of the stairs except when necessary.

[0005]

The use of the telescopic steps makes it possible to set the stairs to the normal position and the position where the number of steps is increased for elderly children by operating the lift. Further, when a person in a wheelchair is to be put on and off, if the lift is raised to the floor, step 1 is folded over the lift and can be used regardless of the stairs.

[0006]

Embodiments of the present invention will be described below. FIG.
Is an explanatory diagram when the step is used as a staircase, the solid line shows the position when running or used for normal getting on and off, the dotted line shows the position when the elderly child gets on and off, the latter case First, the lowermost tread plate 10 is moved downward by the lift. At this time, the lock of the step which has been pushed up by the slide rail 5 and folded down at the lower portion of the floor plate 3 is released, and the step moves together with the slide rail to form a dotted line. And increase the number of steps and reduce the steps. FIG. 2 is an explanatory view showing a situation when a lift is used to get on and off a wheelchair. In the figure, a solid line indicates a state where the lift is raised, and at this time, all steps are pushed up by the lift and folded. It is below the floorboard 3 in the state. The dotted line shows the state when the lift is lowered. When the lift is used, the tread plate 10 held by the tread plate guide 11 is pushed out to the front and has a sufficient size for a wheelchair. FIG. 3 is a front view of the step shown in FIG. 2, in which the main arm 6 for raising and lowering the lift is located on the center line, one end is held by the main arm holder 8 and the other end supports the step 1. A lift cylinder 12 is connected to a position of the main arm 6 near the main arm holder, and converts the expansion and contraction movement of the lift cylinder into a vertical movement of the tread plate 10. A sub-arm 7 that pivots around a sub-arm hold shaft 9 is provided inside the guide rail 4 on both sides of the stairs, and one end of the tread 1 that holds the tread 10 and moves up and down by the main arm 6.
0 induces to always remain horizontal. FIG. 4 is an explanatory view of the steps constituting the stairs. Step 1 is connected to the riser plate 2 by a hinge so that the position shown by the solid line in FIG. Guide rollers 13 which move in the guide rails 4 are mounted on both sides of the step 1, and connecting grooves 14 which engage with steps located below the corresponding steps are provided on both outer surfaces of the riser 2.
Is provided. FIG. 5 is an explanatory view showing a state in which the step 1 is incorporated into the guide rail 4. The riser plate 2 is a part of the step above the step 1 shown in the figure. The guide rollers 13 at both ends of the step 1 are guides. The upper and lower steps are held by the rail 4 and the shaft of the roller passes through the connection groove 14 to connect the upper and lower steps. When the step is at the normal position, the angle between the step 1 and the riser plate 2 is fixed at the maximum position, so the lower step is fixed to the connecting groove 14 and the guide rail 4 and is stable. The slide rail S for operating the step 1 together with the lift is a guide rail 4
It can be moved up and down. Note that the step shown in the dotted line is smaller than the step shown in the solid line in FIG. 1 due to the difference in level, and in order to solve this, the upper surface of one end of the guide rail 4 and the slide rail 5 as shown in FIG. A notch is provided on the upper surface of the riser plate 2 so that the lower end of the riser plate 2 is dropped into the cutout surface. When the tread plate 10 is pushed up to a normal state, the slide rail 5 slides rightward in the drawing,
The riser plate 2 is pushed up by a slope provided on the upper surface of the slide rail, and the cut portion overlaps with the smooth portion to return to a normal state.

[0007]

Since the present invention has the above-described structure, one stair can be used in three ways, one for adults, one for elderly people, one for people who need a wheelchair, and one according to the situation of the user.

[Brief description of the drawings]

 The drawings show embodiments of the invention.

FIG. 1 is an explanatory view when the present invention is used as a staircase.

FIG. 2 is an explanatory view when the present invention is used as a lift.

FIG. 3 is an explanatory view from the front of a situation in which the present invention is used as a lift.

FIG. 4 is an explanatory view of steps constituting the steps of the present invention.

FIG. 5 is an explanatory view showing an assembling state of a guide rail and a step of the present invention.

FIG. 6 is an explanatory view showing a relationship between a slide rail and a guide rail according to the present invention.

[Explanation of symbols]

1, step 2, riser plate 3, floor plate 4, guide rail 5, slide rail 6, main arm 7, sub arm 8, main arm holder 9, sub arm hold shaft 10, tread plate 11, tread plate guide 12, lift cylinder 13, guide roller 14. Connecting groove

Claims (2)

[Claims] 1. A kick-up plate 2 is attached to the end of a step 1 that moves up and down a guide rail 4 provided on both sides of a stair so as to be openable and closable. A connecting groove 14 is provided to continuously combine these steps to form a step, and the step is operated by the slide rail 5. 2. A lift main arm 6 and a sub arm 7 are installed inside the guide rails 4 and a lift tread plate 10 is provided.
When the lift is lifted by arranging at the lower part of the step, step 1 is folded over the upper part of the lift.