JPH1160109A - Simplified device for ascending and descending stairs - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a mechanism and prevent complicated maintenance by fixing an ascending and descending stage where a frame with a hand rail is erected on a supporting body so that the stage may maintain its horizontal position and by providing a moving means for moving the supporting body obliquely. SOLUTION: Guide rails 3 are placed on the both sides of stairs 1, a wheel 5 which engages into the guide rail 3 and rotates is mounted through a supporting body 4, and a lifting stage 9, on which a frame 8 with a hand rail 7 is erected, is horizontally fixed to the supporting body 4. The ascending and descending stage 9 is obliquely moved along the stairs 1 by another installed obliquely moving means. Therefore, not many steps require moving like those of an escalator and only the stage 9 ascends and descends by the obliquely moving means. In the result, the structure is simple, easily maintainable and inexpensively manufacturable.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stair climbing device, and more particularly to a simple stair climbing device configured to raise and lower a single lifting stage by tilting devices provided on both sides of the stairs.

[0002]

2. Description of the Related Art
There is an escalator as a device for ascending and descending stairs, but since the escalator is a device in which a large number of stairs ascend and descend, the mechanism is complicated, maintenance is complicated, a failure rate is high, and it is expensive. .

On the other hand, an elevator does not require a large number of stairs, but it is necessary to install another stair in case of failure. So the stairs exist,
It is desired to provide a device that can move up and down the stairs manually, and furthermore, a person with weak feet or a person who wants to avoid going up and down the stairs by himself can move up and down the stairs without using human power. .

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and there is a stair which can be moved up and down manually, and it is desired to avoid a person with weak feet or ascending or descending the stairs by himself. The present invention provides a stair climbing device that allows a person to go up and down without relying on human power, and is a simple stair climbing device having the following configuration. (1) Guide rails are juxtaposed on both side slopes of the stairs, and the guide rails are engaged with a support that is engaged with the guide rails and that moves up and down, and a frame having handrails is erected on the support. The lift stage so that it remains horizontal,
Further, a simple stair climbing and lowering device is provided, wherein a moving means for tilting and lowering the support is provided, and the lifting stage is tilted up and down along the stairs. (2) Guide rails are juxtaposed on both side slopes of the stairs, and a support body fitted with a rotating wheel fitted thereto is inserted into the guide rails so as to be able to incline and descend, and a handrail is provided on the support body. The lifting stage on which the frame having the frame is provided is fixed so as to maintain a horizontal state, and a moving means for tilting and lowering the support is provided, and the lifting stage is tilted and lowered along the stairs. A simple stair climbing device. (3) One end of a lifting wire is attached above one side of the stairs as moving means for tilting and lowering the lifting stage, and the other end of the lifting wire is a turning pulley provided at both ends of the lifting stage. Is wound and attached to a winding drum provided above the other side of the stairs, and the winding drum is rotated by a drive motor to pull or relax the lifting wire, The simple stair climbing device according to (1) or (2), wherein the stage provided with the turning pulley is configured to be inclined up and down. (4) Ball screws are attached to both sides of the stairs as a moving means for tilting and lowering the lift stage, and a drive motor is mounted on one end of the ball screw. The balls are provided on both sides of the support of the lift stage. The ball screw nut screwed to the screw is mounted, the ball screw is rotated by the drive motor, and the ball screw nut mounted on both sides of the support is raised and lowered, thereby tilting the lifting stage up and down. The simple stair climbing and lowering device according to the above mode (1) or (2), characterized in that the apparatus is configured to cause the stairs to go up and down. (5) Chain means are provided on both sides of the stairs as moving means for tilting and lowering the lifting stage, and pinion sprockets are mounted on both sides of the support of the lifting stage by engaging with the chain rack. A sprocket is rotated by drive motors provided on both sides of a support of the lifting stage, and a pinion sprocket attached to the support is raised and lowered, whereby the lifting stage is configured to be tilted and lowered. The simple stair climbing and lowering device according to (1) or (2). (6) A driving switch and a stop switch of moving means for tilting and lowering the support are attached to a part of the handrail of the support, wherein (1) to (5). The simple stair climbing and lowering device according to any one of the preceding claims. (7) The frame having a handrail is erected only on one side of the elevating stage, (1) to (6).
The simple stair climbing and lowering device according to any one of the above items. (8) The simple stair climbing device according to any one of (1) to (6), wherein the frame having the handrail is erected on both sides of the lifting stage.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below based on embodiments shown in the drawings. FIG. 1 is a partially cut-away side schematic view of a simplified stair climbing device for practicing the present invention, in which an inclination lifting means is not shown, FIG. 2 is a top view of FIG. 1, and FIG. FIG. 4 is a partially enlarged view of a sectional view taken along a line A, and FIG. 4 is a sectional view taken along a line BB of FIG. However, as shown in the above figures, stairs 1, 1,.
Guide rails 3, 3 are attached to both sides via mounting brackets 2, 2,....

The shape of the guide rail 3 is shown in FIG.
Sectional view on line B, provided that stairs 1, guide rails 3, and supports 4
As shown in the figure showing only the positional relationship between the wheel 5 and the wheel 5, the wheel 5 is mounted on an axle 6 attached to the support 4 and fitted on the guide rail 3. Therefore, if the support 4 is moved up and down by the tilt elevating means described later, the wheel 6 attached to the support 4 moves up and down along the stairs 1 while being fitted to the guide rail 3.

However, as described above, the elevating stage 9 on which the frame 8 having the handrail 7 is erected is mounted on the support 4.
Since it is fixed so as to be horizontal, if the support 4 is moved up and down, the elevating stage 9 keeps a horizontal posture,
That is, the user goes up and down along the stairs 1.

Therefore, a person who uses the simple stair climbing and lowering device of the present invention can use the handrail 7 as shown in FIGS.
When the user stands on the elevating stage 9, both sides of the body are protected by the frame 8, and the user moves up and down the stairs together with the elevating stage 9. That is, the elevating stage 9 on which the frame 8 having the handrails 7 shown by the solid line in FIG. 1 is erected, as shown by the two-dot chain line in FIG. It is possible to go up gradually diagonally along with it, and vice versa.

A lift switch (not shown) is attached to the handrail 7. A person using the simple stair lift device of the present invention operates the lift switch to raise or lower the lift stage 9. Things can be stopped on the way.

[0010] Although not shown in the drawings, the switch panels attached to the upper end of the stairs and the lower end of the stairs are also provided with an elevating switch. By operating the elevating switches on the switch panel, no person is riding. The lifting stage can be lowered from the upper end of the stairs to the lower end, or can be raised from the lower end of the stairs to the upper end.

When the lift stage 9 is lowered to the bottom of the stairs by one of the above-mentioned lift switches, the lift stage 9 is moved to the floor 28 of the first floor at the bottom of the stairs.
When the elevator stage 9 is raised to the uppermost stage, the staircase stage 9 overlaps the floor surface 29 of the second floor. It is possible for a person to walk and go up and down as it is.

Next, a description will be given of an invention in which an elevation wire is used as an elevation means for elevating the elevation stage by an elevation wire. FIG. 5 shows a simple stair climbing and lowering device for carrying out the invention of raising and lowering by a raising and lowering wire as a tilting raising and lowering means for raising and lowering the raising and lowering stage 9 by removing the upper surface of the guide rail 3 and the wheels 5 inside the guide rail 3. It is a partially cutaway top view shown so that the axle 6 can be seen, but as shown in the figure, one side of the steps 1, 1,... One end of the lifting wire 12 is attached, and the lifting wire 12 wraps around the turning pulleys 13 and 14 provided on both sides of the lifting stage 9 to form a winding provided on the other side of the stairs and above the right side. The take-up drum 15 is attached to a take-up drum 15, and the take-up drum 15 is structured to be rotated by a drive motor 16.

Accordingly, by rotating the drive motor 16, the winding drum 15 is rotated, and one end of the lifting wire 12 attached to the winding drum 15 is pulled or relaxed. In this way,
If the lifting wire 12 is towed, the lifting stage 9 to which the turning pulleys 13 and 14 are attached is pulled up via the turning pulleys 13 and 14 provided on both sides of the lifting stage 9 to ascend upward. If the lifting wire 12 is relaxed, the lifting stage 9 is lowered. In this case, the speed at which the lift stage 9 moves up and down is
The speed is one half of the speed at which the pulling wire 12 is pulled or relaxed.

Next, a description will be given of an invention in which ball screws mounted on both sides of the stairs are used as a tilting means for raising and lowering the lifting stage. FIG. 6 shows a simple stair climbing device which implements the invention of raising and lowering by using ball screws attached to both sides of the stairs as an inclined lifting means for raising and lowering the lifting stage 9 by removing the upper surface of the guide rail 3 and removing the guide rail. 3 is a partially cutaway cross-sectional top view showing the wheels 5 and the axle 6 inside 3 as shown in the figure. As shown in the figure, two ball screws 17, 17 are provided on both sides of the stairs 1, 1,. A motor box 18, 18 is connected to the upper end of each of the two ball screws 17, 17, respectively.

A drive motor (not shown) is provided in each of the motor boxes 18, 18.
The drive motors are provided with speed reducers 19, 19, respectively. The driving force of each drive motor in the motor boxes 18, 18 turns the two ball screws 17, 17 via the speed reducers 19, 19. It has a structure to move.

On the other hand, two pairs of ball screw nuts 20, 20, 20, 20 are mounted on both sides of the supports 4, 4 mounted on both sides of the elevating stage 9, and the two ball screws 17, 17 are provided. Rotate, the ball screw nuts 20, 20... Are raised or lowered, so that the supports 4, 4 to which the ball screw nuts 20, 20,. Thus, the elevating stage 9 attached to the supports 4, 4
Is moved up and down by rotating the two ball screws 17, 17 via the speed reducers 19, 19 by the drive motor.

Next, a description will be given of an invention in which a chain rack and a pinion sprocket are provided on both sides of the stairs as tilting elevating means for elevating the elevating stage, whereby the elevating stage is raised and lowered.

FIG. 7 shows an upper surface of the guide rail 3 of a simple stair climbing device for providing a chain rack and a pinion sprocket on both sides of the stairs as tilting lifting means for raising and lowering the lifting stage 9, thereby raising and lowering the lifting stage. Is a partially cutaway cross-sectional top view in which the wheels 5 and the axle 6 inside are removed so as to be visible. As shown in FIG. 21 is fixed.

On the other hand, a pair of motor boxes 18, 18 are mounted on supports 4, 4 provided on both sides of the elevating stage, and a drive motor (not shown) is provided in the motor boxes 18, 18. The drive motor is provided with speed reducers 19, 19, and the speed reducer 1
Pinion sprockets 23 are attached to the outside of the drive shafts 9 and 19 via drive shafts 22. The pinion sprockets 23 are engaged with the pair of chain racks 21. .

Therefore, the motor boxes 18, 18
By driving a drive motor (not shown) inside, and rotating the pair of pinion sprockets 23, 23, the pinion sprockets 23, 23 engaged with the chain racks 21, 21 are raised and lowered. Become. Thereby, the pinion sprockets 23, 23
Will be raised and lowered,
Therefore, the elevating stage 9 fixed to the supports 4 and 4 moves up and down.

As described above, by any of the inclined lifting means,
Since the elevating stage of the present invention moves up and down along the stairs, a person riding on the elevating stage 9 can move up and down the stairs without walking on the stairs. When the elevator is lowered on the floor surface 28 and the elevator stage 9 is raised to the uppermost stage and is stacked on the floor surface 29 on the second floor, people do not use the elevator stage 9 and go up the stairs. You can also walk up and down.

[0022]

As shown in FIGS. 5 and 7, holding portions 24 of the side guide rollers are mounted on both outer sides of supports 4 provided on both sides of the elevating stage 9, respectively. A pair of side guide rollers 25, 25, 25, 25 are pivotally mounted on the outside of the holding portions 24, 24, respectively.
Springs 26, 26 are respectively attached between the support members 4, 24 and the support members 4, 4, and the springs press the holding portions 24, 24 of the side guide rollers outward. The swinging stage can be prevented from swinging left and right.

The toe protection plate 27, which is shown in FIGS. 2, 5, 6, and 7, respectively, is erected in front of the elevating stage 9 obliquely upward. The toe of the person who rode on the stairs 1, 1
, Which protects the feet of a person riding on the elevating stage 9.

Of course, according to the present invention, in order to prevent the elevating stage 9 from dropping abruptly when the inclination elevating means fails, the wheels 5 attached to the support 4
It is needless to say that it is desirable to provide a brake device in 6.

[0025]

As described above, according to the present invention, the guide rails are provided on both sides of the stairs, and the wheels which are fitted to and rotated by the guide rails are attached via the support, and the handrail is attached to the support. A simple stair lifting and lowering device, wherein the lifting stage on which the frame is provided is fixed so as to be horizontal, and the lifting stage is tilted up and down along the stairs by a separately provided tilt lifting device. Since it is a device, it is not necessary to move many stairs like an escalator, and only the elevating stage is moved up and down by the inclined elevating means, so that the structure is simple, maintenance is simple, and it is possible to manufacture at low cost. Can be.

Further, since the stairs are left as they are, and only the elevating stage is attached, when the elevating stage is lowered to the lowest level and overlaid on the floor of the first floor, or when the elevating stage is When it is raised and piled on the floor 29 on the second floor, the stairs can be walked up and down as they are, and it is also necessary to install another staircase in case of breakdown, like an elevator Absent.

As means for raising and lowering the lifting stage,
In the case of using the lifting wire, the lifting stage can be raised and lowered only by pulling and relaxing the lifting wire.
The structure is simpler and there are few failures.

Further, the moving distance of the lifting stage 9 is as follows.
Since the distance of pulling / relaxing of the lifting wires 12 and 12 is reduced to half, the pulling motor requires less power to pull the lifting wires by the drive motor, so that it is sufficient to use a motor with a smaller torque. become.

Next, as a means for inclining the elevating stage, ball screws are attached to both sides of the stairs, although the structure is simple as described above, but compared with the above-mentioned one using the elevating wire. As a result, accidents such as broken wires do not occur.

Next, as the means for inclining the lifting stage, a chain rack and a pinion sprocket provided on both sides of the stairs are similar in structure to those of the above-mentioned inventions. Since the lifting stage is raised and lowered by movement, the rotation of the pinion sprocket directly leads to the lifting and lowering of the lifting stage, so the lifting and lowering is stable, and it is also convenient for emergency stop and changing direction during lifting and lowering It is.

[Brief description of the drawings]

FIG. 1 is a partially cut-away side schematic view of a simplified stair climbing and lowering device embodying the present invention, in which a lifting means is not shown.

FIG. 2 is a top view of FIG.

FIG. 3 is a partially enlarged view of a cross-sectional view taken along line AA of FIG. 2;

FIG. 4 is a sectional view taken along the line BB of FIG. 3, but showing only the positional relationship between the stairs, the guide rails, and the support.

FIG. 5 is a partially cut-away cross-sectional top view of a simple stair climbing device that moves up and down by a lifting wire as an inclined lifting device according to the present invention, in which the upper surface of the guide rail is removed and the inside of the guide rail is visible.

FIG. 6 is a partially cutaway cross-sectional view of a simple stair climbing and lowering device of the present invention, which lifts and lowers using ball screws attached to both sides of the stairs, in which the upper surface of the guide rail 3 is removed so that the inside can be seen; It is a top view.

FIG. 7 is a partially cut-away cross-sectional view of a simple stair climbing device having a chain rack and a pinion sprocket provided on both sides of a stair as a means of ascending and descending the present invention so that the upper surface of a guide rail 3 is removed so that the inside can be seen. It is a top view.

[Explanation of symbols]

 1: Stairs 2: Mounting bracket (of guide rail) 3: Guide rail 4: Support body 5: Wheel 6: Axle 7: Handrail 8: Frame 9: Elevating stage 10: Person (on the elevating stage) 11: (Elevating) Mounting bracket of wire 12: lifting wire 13: turning pulley 14: turning pulley 15: winding drum 16: drive motor 17: ball screw 18: motor box 19: reducer 20: ball screw nut 21: chain rack 22: drive Shaft 23: Pinion sprocket 24: Holder for side guide roller 25: Side guide roller 26: Spring 27: Toe protection plate 28: Floor on the first floor 29: Floor on the second floor

Claims (8)

[Claims] 1. A guide rail is provided side by side on both sides of a stair,
The guide rail is engaged with a support which is engaged with the guide rail and which moves up and down, and the support is fixed to a lift stage having a frame having handrails so as to maintain a horizontal state. A simple stair climbing and lowering device, wherein a moving means for tilting and lowering the support is provided, and the lifting stage is tilted and lowered along the stairs. 2. A guide rail is provided side by side on both sides of the stairs,
The guide rail is provided with a support having wheels mounted thereon that rotate while being fitted to the guide rail so as to be able to tilt up and down, and a lift stage having a frame having handrails is mounted on the support so as to maintain a horizontal state. And a moving means for tilting the support up and down is provided, and the lifting stage is tilted up and down along the stairs. 3. One end of a lifting wire is mounted above one side of a stair as a moving means for tilting and lowering the lifting stage, and the other end of the lifting wire is provided at both ends of the lifting stage. By winding the deflection pulley and attaching it to a winding drum provided above the other side of the stairs, the winding drum is rotated by a drive motor to pull or relax the lifting wire. 3. The simple stair climbing and lowering device according to claim 1, wherein the stage provided with the turning pulley is configured to be inclined up and down. 4. As a moving means for tilting and lowering the elevating stage, ball screws are attached to both sides of the stairs, a drive motor is attached to one end of the ball screw, and both sides of a support for the elevating stage are provided. A ball screw nut screwed into the ball screw is attached, the ball screw is rotated by the drive motor, and the ball screw nut attached to both sides of the support is moved up and down, whereby the lifting stage is moved. The simple stair climbing and lowering device according to claim 1 or 2, wherein the device is configured to be inclined up and down. 5. A chain rack is provided on both sides of a stair as moving means for raising and lowering the elevating stage.
On both sides of the support of the elevating stage, pinion sprockets are attached by engaging with the chain rack, and the pinion sprockets are rotated by drive motors provided on both sides of the support of the elevating stage, so that the support The simple stair climbing device according to claim 1 or 2, wherein the lifting stage is inclined up and down by lifting and lowering a pinion sprocket attached to the stairs. 6. A switch according to claim 1, wherein a drive switch and a stop switch of moving means for tilting and lowering the support are attached to a part of the handrail of the support. Item 2. The simple stair climbing device according to item 1. 7. A frame having a handrail is erected only on one side of a lifting stage.
7. The simple stair climbing and lowering device according to any one of 6. 8. The simple stair climbing device according to claim 1, wherein a frame having handrails is provided upright on both sides of the lifting stage.