JPH11278772A - Rail for stairs elevator and stairs elevator using this rail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To maintain a constant cross section of a rail for stairs elevator, and to bend this rail along the bend of a stairs. SOLUTION: A rail 2 for stairs elevator is laid along a stairs 10 so as to guide the elevation of a lift body 3. Since the rail 2 is formed by continuously connecting rail pieces 6 formed by overlapping an upper rail body and a lower rail body, which are respectively formed by overlapping plural plate pieces, with an upper part and a lower part of a side plate, cross section is formed constant, and radius of curvature can be restricted small.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ladder that is laid along a staircase, and is bent in a two-dimensional or three-dimensional direction along a landing of a stair or a spirally curved portion. The present invention relates to a rail for a stair climber for guiding up and down and a stair climber using the rail.

[0002]

2. Description of the Related Art Conventionally, a rail for a stair climber is constituted by a pair of parallel pipe-shaped members laid apart from each other in a vertical direction.

[0003]

However, when the pipe-shaped member constituting the rail is curved two-dimensionally or three-dimensionally along the steps, the pipe-shaped member is crushed into a flat shape. May cause trouble. In addition, since the rails are provided in a pair at the top and bottom, when the rails are crushed and flattened, it is difficult to make the vertical interval a predetermined interval.

For this reason, in the processing of the pipe-shaped member, it is necessary to perform the bending process while paying attention so that the pipe-shaped member is not crushed, and there is a problem that time and labor are required. In particular, when the radius of curvature is small, there is a problem that it is easily crushed.

SUMMARY OF THE INVENTION An object of the present invention is to provide a rail for a stair lift which can be formed in a bent shape in accordance with the bending of the stairs with a constant cross-sectional shape, and a stair lift using the rail.

[0006]

Means for Solving the Problems The above object is achieved by the steps (1)
0) and a plurality of plate pieces (28) in a rail for a stair lift which guides the elevating body (3) up and down.
(25) The upper rail body (8) and the lower rail body (9) formed by superposing the (16) and (24) on the side plate (7).
Rail piece (6) formed by overlapping on the upper and lower parts of
Are connected continuously in the elevating direction of the elevating body (3).

In this case, the stair lift rail (2)
In some cases, at least one of the plurality of rail pieces (6) is curved in the vertical direction.

Further, the rail for the stair climber (2)
In some cases, at least one of the plurality of rail pieces (6) is curved in the left-right direction.

The upper and lower rails (8)
(9) At least one of the plurality of plate pieces (28), (25), (16), and (24) of at least one of the rail bodies.
The sheets are rack pieces (25) and (24) that mesh with the sprockets (54) and (34) of the elevating body, and the rack pieces are connected in the elevating direction of the elevating body to form a rack (5).

[0010] Any one of the rails for an elevator (6)
There is a stair lift (1) provided with a lift (3) that is guided by the rails and moves up and down.

Reference numerals in parentheses are reference numerals attached to the drawings, and do not limit the configuration at all.

[Operation] The stair lift rail (2) is composed of an upper rail body (8) and a lower rail body (9) formed by laminating a plurality of plate pieces (28) (25) (16) (24). ) Are continuously connected in the elevating direction of the elevating body (3) since the rail pieces (6) formed by being provided on the upper part and the lower part of the side plate (7) are continuously connected to each other. However, since the individual plate pieces can be formed exactly according to the dimensions, and the cross-sectional deformation of the bent plate pieces is small, it is formed with the same cross-sectional shape accurately over the entire length. I have. Further, since the upper and lower rail bodies (8) and (9) are provided on the side plate (7) which is similarly processed accurately, the vertical distance is maintained at a predetermined distance.

Before and after the landing (11) of the stairs (10), the rail (2) must be curved vertically. In this case, a rail piece (6) having a vertically curved shape is used. Since the rail piece (6) curved in the vertical direction is formed by stacking flat and curved plate pieces, the distance ratio radius can be reduced as compared with the case where a conventional pipe is used.

In the part where the stairs are spiral, the rail (2) must be spiral.
In this case, a rail piece curved in the left-right direction is used. Since the rail piece curved in the left and right direction is formed by stacking plate pieces cut by bending in the thickness direction, the cross-section deformation is composed of small plate pieces, and the distance is smaller than when using a conventional pipe. The rate radius can be reduced.

As described above, since the curved portion of the rail connects the rail pieces, the radius of curvature can be reduced, and the curved portion is formed in a shape following the shape of the steps.

Since the rail for the stair climber is formed by continuously connecting the rail pieces (6), the rail (2) may be weakened. For this reason, when at least one connection position among the connection positions between the side plates (7), the upper rail members (8), and the lower rail members (9) is shifted with respect to the other connection positions, each connection position is changed. The parts reinforce each other.

The stair lift rail (2) is provided with a lifting drive rack (5) so that the lifting body (3) can be raised and lowered.
Is provided.

In the stair lift using the above-mentioned stair lift rail (2), the cross-sectional shape of the rail (2) is accurately formed over the entire length and is the same, so that the lift moves up and down smoothly.

[0019]

FIG. 1 is a block diagram showing an embodiment of the present invention.
A description will be given based on FIGS.

The stair climbing machine 1 is a device for climbing up and down stairs by placing a disabled person such as an elderly person, a physically handicapped person, or a sick person. And a lifting body 3.

The configuration of the rail 2 will be described.

The rail 2 is formed in a strip shape as a whole, and is laid along the stairs 10 while being supported by the columns 4. The rail 2 has a curved portion 14 in which a portion corresponding to the boundary between the landing 11 and the step 13 is curved in a two-dimensional direction, and the direction of the landing 11 and the stairs 10 is changed in step 1.
The portion corresponding to the boundary with 3 (the portion indicated by reference numeral 12) is 3
A curved portion 15 curved in the dimensional direction is formed.

The rail 2 is formed by stacking plate pieces so as to make the cross-sectional shape of an upper rail 8 and a lower rail 9 to be the same as a linear portion even in a portion curved in a two-dimensional direction or a three-dimensional direction. The rail pieces 6 are continuously connected.

The rail piece 6 includes a side plate 7 cut to a desired length, an upper rail body 8 provided on the upper side of the side plate 7,
And a lower rail body 9 provided below the side plate 7. The upper rail body 8 and the lower rail body 9 are portions where the traveling rollers 22 of the elevating body 3 travel, and include a pin holding / side roller guide plate 28 and a roller support plate 2 described later.
4, 25 and a core plate 16 (in the present embodiment, these plates are collectively referred to as “plate pieces”). In addition, a steel plate, a strip steel plate, or a strip steel plate is used for the side plate 7 and the plate pieces 28, 24, 25, 16.

In the rail 2, a portion along the step 13 includes an upper rail body 8-1 formed by superposing a straight and flat strip-shaped steel plate on a side plate 7-1 of a straight and flat strip-shaped steel plate. , The lower rail body 9-1 and the rail pieces 6 formed are connected to form a linear shape.

A boundary between the landing 11 and the step 13 is formed on a side plate 7-2 which is formed into a shape curved in a plane direction.
An upper rail body 8-2 and a lower rail body 9-2, which are formed by stacking steel plate pieces processed into a shape curved in the surface direction.
Are formed to bend in two-dimensional directions by connecting rail pieces 6 formed.

The part of the landing 11 and the step 13 in which the direction of the stairs 10 is changed are the side plate 7-3 formed by bending a strip steel plate in the thickness direction by a press machine, and the strip steel plate in the thickness direction by a press machine. The upper rail body 8-3 formed by stacking the plate pieces formed by bending the rails, and the rail piece 6 formed by providing the lower rail body 9-3 are connected to form a three-dimensional curve. Have been.

As described above, all the rails 2 are formed by connecting, by pressing, a strip steel plate to a side plate formed by cutting, punching or curving a side plate, an upper rail body, and a lower rail body. Therefore, by a simple processing method, the cross-sectional shape is made uniform over the entire length and the radius of curvature is made small, so that it is faithfully formed along the shape of the staircase 10. For this reason, the rail 2 can guide the elevating body 3 described later smoothly up and down.

A roller rack 5 is provided at the lower edge of each of the upper rail body 8 and the lower rail 9 constituting the rail 2. That is, the roller rack 5 is provided on the upper edge 2a and the lower edge 2b of the rail.

The configuration of the roller rack 5 will be described.

The roller rack 5 is a type of rack in which a sprocket of the elevating body 3 to be described later meshes, and a pair of left and right roller support plates 24 having different thicknesses provided on both sides of the upper rail body 8 and the lower rail body 9. , 25 and a plurality of pins 27 supported at both ends by the pair of roller support plates 24, 25.
And a cylindrical roller 26 loosely fitted to the pin 27. The pin 27 includes a pin holding / side roller guide plate 28 provided on the left roller support plate 25 and a rail 2.
With the side plate 7.

Similarly to the rail 2, the roller supporting plates 24 and 25 are also cut into a desired length and are flat and straight steel strips, strip-shaped steel strips that are cut in a curved shape in the surface direction, or are formed into a curved shape in the thickness direction. It is formed of a strip-shaped steel plate bent into a shape, and is connected to the elevating body 3 in the elevating direction. That is, the roller rack 5 is also formed by connecting a plurality of rack pieces.

Therefore, the roller rack 5 is also faithfully formed along the shape of the stairs 10 by a simple processing method with a uniform cross-sectional shape and a small radius of curvature. For this reason, the elevating body 3 described later can be smoothly driven up and down.

Note that, instead of the roller rack 5, a chain (not shown) may be provided on the upper edge and the lower edge of the rail. In the case of a chain, it can be freely bent in two-dimensional directions and three-dimensional directions. Since the chain also has a roller with which the sprocket meshes, the chain has the same structure as the roller rack 5, and is included in the same concept as the roller rack in the present invention.

The structure of the elevating body 3 will be described.

The elevating body 3 has a chair 32 on a machine frame 31. A drive motor 33 is housed in the machine frame 31. The rotational force of the drive motor 33 is transmitted to a drive shaft 35 via a speed reduction mechanism 34. Drive shaft 35
Is rotatably supported by the machine frame 31 by bearings 37 provided on the machine frame 31 via the lower flange 36,
A drive power sprocket 38 is provided inside the machine frame 31 with the bearing 37 as a boundary, and a drive traveling sprocket 39 is provided outside the machine frame 31. The drive traveling sprocket 39 meshes with the roller rack 5 provided on the lower edge 2 b of the rail 2.

A lower frame 41 is provided on the lower flange 36 via a bearing 40 so as to be rotatable with respect to the machine frame 31. In the lower frame 41, a pair of traveling rollers 22 and side rollers 42 are arranged in the traveling direction of the elevating body 3 as shown in FIG.

A driven shaft 50 is provided right above the drive shaft 35. The driven shaft 50 is attached to the machine frame 31 by the upper flange 5.
1 through the bearing 52 provided through the
And a driven power sprocket 53 in the machine frame 31 with the bearing 52 as a boundary.
The driven sprocket 54 is provided outside. The driven traveling sprocket 54 meshes with the roller rack 5 provided on the upper edge 2 a of the rail 2. An upper frame 56 is mounted on the upper flange 51 via a bearing 55.
1 is provided so as to be rotatable. As shown in FIGS. 3 and 5, on the upper frame 56, the traveling roller 22 and a pair of left and right side rollers 42 are arranged in a pair in the traveling direction of the elevating body 3.

A chain 57 extends between the driving power sprocket 38 and the driven power sprocket 53.

Finally, the operation of the stair climber 1 will be described.

When the drive motor 33 is started, the drive shaft 3
5 rotates, and a driving power sprocket 38;
The drive traveling sprocket 39 rotates in the same direction. The rotation of the drive shaft 35 is also transmitted to the driven power sprocket 53 by a chain 57 meshing with the drive power sprocket 38, and the driven shaft 50 and the driven traveling sprocket 54 also rotate in the same direction as the drive shaft 35.

Accordingly, the elevating body 3 moves up and down as the driving and driven traveling sprockets 39 and 54 rotate and sequentially mesh with the rollers 26 of the roller rack 5. The elevating body 3 travels while being supported by the upper rail body 8 and the lower rail body 9 by the traveling rollers 22. In addition, the lifting body 3
The upper and lower pin holding and side roller guide plates 28 are sandwiched from the left and right by a pair of left and right side rollers 42, and the lower pin holding and side roller guide plates 28 The vehicle travels without falling off the rail 2 by contacting the side rollers 42.

The roller rack 5 of the stair climbing machine 1 described above is laid along the upper edge 2a and the lower edge 2b of the rail 2, but at least one of the upper edge 2a and the lower edge 2b, Alternatively, one may be laid in the middle of the rail 2 in the vertical direction.

The elevating body 3 is supported on the rail 2 by the rollers on the upper frame 56 and the rollers on the lower frame 41, but is not limited to this. You may support on a rail.

[0045]

The rail for a stair climber according to the present invention is an upper rail body for guiding an elevating body, and a lower rail body is formed by stacking plate pieces in the thickness direction. Can be accurately dimensioned into a curved shape in the plane direction, and for rails curved in the left-right direction, the plate piece can be curved in the thickness direction to minimize cross-sectional deformation, and the cross-sectional shape can be reduced over the entire length. It can be formed accurately and uniformly.

Moreover, the side plate can be formed accurately, and the upper and lower rails are provided on the precisely formed side plate, so that the vertical interval can be made uniform over the entire length of the rail.

Further, since the rail is formed by stacking plate pieces, it is possible to reduce the radius of curvature unlike conventional pipes by stacking plate pieces whose curvature can be reduced. The shape can be made to conform to the shape.

Furthermore, the cross-sectional shape of the rail can be formed accurately and uniformly, the interval between the upper rail and the lower rail can be made uniform, and the rail can be formed along the shape of the steps. Thus, the rail can guide the elevating body up and down smoothly.

When the rack is provided on the rail for the stair climber, the rail and the rack can be reinforced with each other.

When the stair lift rail is used as in claim 3, the cross section of the rail is formed to be constant, so that the lift can be raised and lowered smoothly.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a stair climber provided with a rail according to an embodiment of the present invention.

FIG. 2 is a perspective view of a rail according to the embodiment of the present invention.

FIG. 3 is a cross-sectional view of the stair lift of FIG. 1 taken along a drive shaft and a driven shaft.

FIG. 4 is an enlarged detail view of the upper part of the stairlift of FIG. 3;

FIG. 5 is a view of the stair climber of FIG. 1 as viewed from the right side.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Stair lift 2 Stair lift rail 2a Upper edge 2b Lower edge 3 Elevator 5 Roller rack (rack) 6 Rail piece 7 Side plate 8 Upper rail body 9 Lower rail body 10 Stairs 14 Curved portion 15 Curved portion 16 Core plate (plate piece) ) 24 Roller support plate (plate piece) 25 Roller support plate (plate piece) 28 Pin holder and side roller guide plate (plate piece) 39 Drive traveling sprocket (drive sprocket) 54 Driven traveling sprocket (drive sprocket)

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoshihiro Kitamura 197 Kumasaka-cho, Kaga-shi, Ishikawa Daido Industry Co., Ltd.

Claims (3)

[Claims] 1. A stair lift rail, which is laid along a stair and guides the elevating body up and down, comprising: an upper rail body and a lower rail body formed by stacking a plurality of plate pieces; A rail for a stair climber, wherein rail pieces formed by being provided on a lower portion are continuously connected in the elevating direction of the elevating body. 2. The apparatus according to claim 2, wherein at least one of the plurality of plate pieces of at least one of the upper and lower rail bodies is a rack piece that meshes with a sprocket of the elevating body. 2. The stair lift rail according to claim 1, wherein the rail is connected to the body in the elevating direction to form a rack. 3. A stair climbing machine comprising: the rail according to claim 1; and an elevating body guided up and down by the rail.