JPS6222622B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a wheelchair auxiliary trolley for an escalator used when a wheelchair user uses an escalator.

[Technical background of the invention and its problems] With the development of transportation, railway station platforms, etc. are being installed higher or lower than the ground. An increasing number of stations are installing escalators for timing purposes.

However, it is extremely difficult for wheelchair users to use escalators, and even if they get on the escalator with an attendant, they will not be able to place the wheelchair horizontally on top of the first step of the escalator; Because the user has to straddle steps and tilt the wheelchair to use it, there is a high possibility that the wheelchair will fall, which is extremely dangerous.

Additionally, escalators with a special structure that carry both wheelchairs and general passengers cannot often be installed due to the structure of station buildings, etc. On the other hand, there are places where escalators exclusively for wheelchairs are installed, but they are not escalators for general users. The disadvantage is that it must be installed separately.

Therefore, in order to eliminate the above-mentioned drawbacks, the present applicant has filed a patent application separately from this invention for a wheelchair auxiliary trolley for escalators having the structure shown in Figs. 1 to 5 (hereinafter referred to as This patent application is called a separate application).

Below, the structure and operation of the truck related to this separate application will be explained according to the drawings in Figures 1 to 5.
0 is the main body of the trolley on which wheelchair B, on which wheelchair user A rides, is placed, including a floor plate 1 on which wheelchair B rests, side plates 2 placed on both sides of this floor plate, and a rear part that can be held and pushed by an attendant C. It has both side handle rods 5a and front both side handle rods 5b (wheelchair stoppers 5 are provided on these handle rods), and the side plate 2
A front wheel 3 and a rear wheel 4 are mounted on both front and rear sides of the escalator with a distance L between the axles spanning the three steps of the escalator steps S as shown in FIG. , 4, an intermediate wheel 6 is pivoted to be in contact with the step S2 next to the step S1 on which the front wheel 3 is in contact with the horizontal part SH of the upper stair step of the escalator, as shown in FIG. In addition, at the front end of the side plate extending forward from the front wheels 3 of the trolley body 10, there is a third
As shown in the figure, a stopper roller 11 for stopping the vehicle is provided. 7, the cart main body 10 on which the wheelchair B is placed is moved backward in accordance with the stair forming movement as shown in FIG. It is a device that raises the wheel side and lowers the rear wheel side and maintains it in a horizontal state. The step consists of a rotary operating lever 8 that can be pressed down, and a step-floor push-up lever 9 that extends from the lower end of the rotary operating lever toward the rear wheels through the outside of the intermediate wheel 6. A step contact body 9a made of an elastic body with high frictional resistance, such as nitrile rubber, is attached to the tip of the floor contact push-up lever 9. The rotating lever 8 is a handle rod 5a on both sides of the rear part.
A locking means (not shown) is provided, which has a gate shape as shown in FIG. 1 and is rotatable downward and upward beyond the upper end handle, and is normally positioned at a position as shown in FIG. 2 where the step contacting body 9a leaves the floor. It is latched by.

Therefore, to explain how to use the auxiliary trolley related to the separate application structured as described above, first, attendant C who has been pushing wheelchair B stops wheelchair B near the escalator entrance, and then Wheelchair B loaded with the user is placed on the auxiliary trolley prepared at Wait for the escalator driver to stop the escalator at the lower level horizontal part of the escalator step S.
SL The cart is positioned as shown in FIG. 3 (the state in which the stopper roller 11 at the end of the cart main body 10 is in contact with the step part) and stopped. After getting on this trolley, start the escalator,
Manual or automatic escalator operation is performed in which the escalator is stopped when the trolley reaches the horizontal step portion of the escalator's upper entrance. At this time, attendant C
The rotation operation lever 8 is pushed down in accordance with the stair formation movement from the SL, and the platform body 10 on which the wheelchair B is mounted is moved with the front wheels 3 as the fulcrum by the push-up action of the step floor push-up lever 9, as shown in FIG. Raise the rear wheels to a horizontal state as shown in the upper right (at this time, the loads of wheelchair user A, wheelchair B, and auxiliary trolley are supported by the front wheels 3 and the step grounding body 9a), and maintain the horizontal state. Move it upward while trying to
and escalator steps S on which the wheelchair B is placed.
Just before it moves from the staircase part SK to the upper staircase horizontal part SH and stops, the rotary lever 8 is moved to the upper staircase horizontal part SH.
In accordance with the horizontal forming movement from SK, push up and rotate as shown in Figure 4. In this way, the auxiliary trolley carrying a wheelchair can be raised from the lower escalator entrance to the upper escalator entrance in a horizontal state, and then transported and stopped at the horizontal step SH of the escalator upper entrance. The auxiliary trolley carrying a wheelchair can be easily pushed out from a state where the front wheels 3 and intermediate wheels 6 are in contact with the floor as shown in FIG. 4 to a state shown in FIG. 5 to the floor of the entrance/exit.

The structure and operation of the wheelchair auxiliary trolley related to the above-mentioned separate application are as described above, and this auxiliary trolley has height distances h1 and h2 of the wheels 3 and rear wheels 4 from the main body floor plate 1 surface to the wheel contact surface. are the same, and the height distance h3 from the main body floor plate 1 surface of the intermediate wheel 6 to the wheel ground contact surface is formed to be slightly raised from the ground contact surface of the front and rear wheels 3 and 4.
The research revealed the following problems.

In other words, some general escalators do not have enough horizontal parts of the steps S at the entrances to the upper and lower floors, as shown in Figure 3. If the horizontal part of the steps on the upper floor is only about 1 or 2 steps long as shown in Fig. 4, raise the step contact body 9a of the trolley level maintenance device 7 at the horizontal part SH of the upper stairs and lower the main body of the trolley. When the rear wheels 10 are lowered and the front wheels 3 and intermediate wheels 6 are brought into contact with the two horizontal steps S1 and S2, the trolley body 10 (body floor plate 1 on which the wheelchair B is placed) tilts backwards. Therefore, the wheelchair B is placed in an unstable state where it tends to roll backwards, which is dangerous (the same is true when it is pushed out toward the floor of the entrance/exit as shown in FIG. 5). In addition, when not riding on an escalator (when traveling on a horizontal floor surface), the trolley body 1
Since the floorboard 1 of No. 0 is in a horizontal state, the position of wheelchair B on the trolley body 10 is unstable, and wheelchair B may start to move due to inertia, making wheelchair user A anxious.

[Purpose of the invention]

The object of the present invention is to provide a wheelchair auxiliary trolley for an escalator which solves the problems mentioned above in the separate application.

[Summary of the invention]

In order to achieve the above-mentioned object, the present invention aims to move the intermediate wheel to the horizontal position next to the step on which the front wheel contacts the floor when the step contact body of the trolley level maintenance device is raised at the step horizontal part of the escalator's upper floor boarding/exiting section. In addition to being installed in a position that rests on the step surface, the height distance of the front wheel, intermediate wheel, and rear wheel from the floor plate surface of the bogie body to the wheel contact surface is changed so that the height of the front wheel, intermediate wheel, and rear wheel increases in the order of the front wheel, intermediate wheel, and rear wheel. The front and rear wheels touch the ground on a horizontal floor surface that is not placed on the escalator, and the intermediate wheels are raised so that the floor plate surface of the trolley body on which the wheelchair is placed is tilted upward at the rear. The front wheels and intermediate wheels are in contact with the two horizontal step surfaces on the step surfaces, so that the floor plate surface of the truck body is inclined upward toward the rear.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described with reference to the drawings in FIGS. 6 to 8. This wheelchair auxiliary trolley for escalators allows wheelchair user A to use the escalator accompanied by an attendant C.
A trolley body 10 on which a wheelchair B can be placed and pushed, and front and rear wheels 3 pivoted to the front and rear portions of the trolley body with a spacing L between the front and rear axles spanning the three step surfaces of the escalator steps S. , 4, an intermediate wheel 6 pivoted at an intermediate position between the front and rear wheels 3 and 4 of the truck body 10, and a stair-forming movement from the step horizontal portion SL of the escalator provided on the truck body 10, or the like. It is equipped with a trolley level maintenance device 7 that raises and lowers the rear wheel side of the trolley body 10 on which the wheelchair B is placed in accordance with the step horizontal formation movement from the opposite step step part SK and maintains the horizontal state. A wheelchair auxiliary trolley having the same structure as the above-mentioned separate application (the structure and operation of this trolley are substantially the same as those shown in FIGS. 1 to 5, so the same parts are given the same reference numerals and a detailed explanation will be omitted. ), the intermediate wheels 6 are installed on the horizontal part of the steps in the upper escalator boarding area.
Step grounding body 9 of bogie horizontal maintenance device 7 at SH
The front wheels 3, the intermediate wheels 6 and the rear wheels 4 are installed in a position such that when the wheel a is raised, the front wheels 3 ride on the surface of the horizontal step S2 next to the step S1 on which the front wheels 3 touch the floor.
The height distance h1, h3, h2 from the floor plate 1 of the bogie main body to the wheel contact surface is set so that the height distances h1, h3, h2 become higher in the order of front wheel 3, intermediate wheel 6, and rear wheel 4, that is, h1<h.
3<h2, and h3-h1>a (step S
1, S2 height difference), h2 - h1 > b (floor height from the entrance/exit step surface), and the front and rear wheels 3 and 4 are As shown in Fig. 6, the intermediate wheel 6 is grounded and
is raised, and the floor plate 1 of the trolley body 10 on which the wheelchair B is placed is tilted upward backwards, and the front wheels 3 and the intermediate wheels 6 are on the upper floor horizontal step SH placed on the escalator. horizontal steps S
It is characterized in that the main body floor plate 1 is inclined upwardly at the rear by being in contact with the floor as shown in FIG. 7 on the 1 and S2 surfaces. In this embodiment, the front wheel 3, the intermediate wheel 6, and the rear wheel 4 are formed as wheels having the same diameter, and the mounting height distance of the axle from the main body floor plate 1 to the bogie main body 10 is the same as that of the front wheel. 3. Although the height of the intermediate wheel 6 and the rear wheel 4 are changed in this order, the height of each wheel axle is set at the same level, and the height of the front wheel 3, the intermediate wheel 6, and the rear wheel 4 is changed in that order. It is also possible to change the wheel diameter so as to increase it sequentially. Further, the truck horizontal maintenance device 7 in the above-described embodiment is not limited to the lever type, but may be of a hydraulic cylinder type or the like.

〔Effect of the invention〕

As described above, in the wheelchair auxiliary trolley for an escalator according to the present invention, when the intermediate wheel of the trolley main body is brought into contact with the front wheel when the step contact body of the trolley level maintenance device is raised at the step horizontal part of the upper escalator boarding section. Attach it to the position where it rests on the horizontal step surface next to the step to be floored, and measure the height distance of the front wheel, intermediate wheel, and rear wheel from the floor plate surface of the trolley body to the wheel contact surface in the order of front wheel, intermediate wheel, and rear wheel. Since the height of the cart is gradually increased, the front and rear wheels touch the ground on the horizontal floor surface that is not placed on the escalator, and the intermediate wheels are lifted up, causing the floor plate surface of the trolley body on which the wheelchair is placed to tilt upward toward the rear. When placed on the upper level horizontal step surface, the front wheels and intermediate wheels touch the two-step horizontal step surface, and the floor plate surface of the main body of the trolley is tilted backwards, making it safe for wheelchair users. The user can use the trolley with a sense of self-confidence, and the attendant can also run the wheelchair-equipped trolley in a stable state.

[Brief explanation of the drawing]

1 to 5 are explanatory views of an auxiliary cart for an escalator related to a separate application filed by the applicant separately from this invention, in which FIG. 1 is a plan view, FIG. 2 is a front view, and FIG. The figure is a usage state diagram, Figure 4 is an operation state diagram at the escalator upper floor entrance, and Figure 5 is a diagram of the operation state at the escalator upper floor entrance.
FIG. 6 is an operational state diagram showing a state in which the auxiliary trolley is pushed out a little toward the floor surface of the entrance/exit from the state shown in the figure. FIG. 6 is a front view showing a wheelchair auxiliary trolley for an escalator according to an embodiment of the present invention, FIG. 7 is an operational state diagram showing the auxiliary trolley in a stopped state of conveyance at the upper escalator entrance, and FIG. FIG. 8 is an operating state diagram showing a state in which the cart is pushed out a little toward the floor surface of the entrance/exit from the state shown in FIG. 7; A... Wheelchair user, B... Wheelchair, C... Attendant, S... Escalator steps, S1... Steps on which the front wheels stand, S2... Steps on which intermediate wheels ride,
SL...lower stair step horizontal part, SK...tread step part,
SH...Horizontal part of upper stair steps, 1...Main body floorboard, 3...
...Front wheel, 4... Rear wheel, L... Distance between front and rear wheel axles, 6... Intermediate wheel, 7... Bogie horizontal maintenance device, 10... Bogie body, h1, h3, h2... Front wheel and the height distance between the intermediate wheel and rear wheel from the main body floor plate surface to the wheel contact surface.

Claims (1)

[Scope of Claims] 1. A trolley body on which a wheelchair can be placed and pushed, which allows a wheelchair user to use an escalator accompanied by an attendant, and escalator steps on the front and rear parts of the trolley body. front and rear wheels that are pivoted at a spacing between the front and rear axles spanning at least three step surfaces, an intermediate wheel that is pivoted at a position between the front and rear wheels of the bogie body, and a horizontal step of the escalator that is provided on the bogie body. An escalator equipped with a trolley level maintenance device that raises and lowers a rear wheel side of a trolley body on which a wheelchair is mounted in accordance with the step formation movement from the step section or vice versa. In the wheelchair auxiliary trolley for use, the intermediate wheel is placed on the horizontal step surface next to the step on which the front wheel contacts the floor when the step contact body of the trolley level maintenance device is raised at the step horizontal part of the upper escalator boarding/exiting section. At the same time, the height distance of the front wheel, intermediate wheel, and rear wheel from the floor plate surface of the bogie main body to the wheel installation surface is changed so that the height of the front wheel, intermediate wheel, and rear wheel increases in the order of escalator. The front and rear wheels touch the ground on a horizontal floor surface that cannot be placed on the escalator, and the intermediate wheels lift up, causing the floorboard surface of the trolley body on which the wheelchair is placed to tilt upward. A wheelchair auxiliary trolley for an escalator, characterized in that the intermediate wheels are in contact with the two-step horizontal stair surface so that the floor plate surface of the trolley body is inclined upward toward the rear. 2 The front wheel, intermediate wheel, and rear wheel mentioned above have the same diameter, and the installation height distance of the axle from the floor plate surface of the truck body to the truck body is the same as that of the front wheel, intermediate wheel, and rear wheel.
The wheelchair auxiliary trolley for an escalator according to claim 1, characterized in that the height of the rear wheels increases in sequence.