JPH01236185A - Elevator device - Google Patents

Abstract

PURPOSE:To arrange so that the whole widths of rollers may come into contact with the side surfaces of a rail following the distortion of the rail at an elevator device which ascends/descends under the guidance of the rail, by arranging so that perpendicular shafts and guide rollers may be confronted with each other through the guide portion of the rail. CONSTITUTION:This elevator is provided with arm bodies 11 held by means of the perpendicular shafts 10 of a cage 1, and guide rollers 7, 8 are held at these arm bodies 11 through horizontal shafts 12. That is to say, perpendicular shafts 10 and guide rollers 7, 8 are arranged in a face to face with each other way through the guide portion 6a of a rail 6, and guide rollers 7, 8 are provided so that they may be able to turn and displace themselves latitudinally with perpendicular shafts as centers. Accordingly, the the case of the rail 6 being distorted and side surfaces 6c being inclined, guide rollers 7, 8 turn with perpendicular shafts as centers, and the contact state of the whole surfaces of the width directions of guide rollers 7, 8 and the side surfaces 6c of the rail 6 is maintained. As a result, only one side of the width direction of each roller 7, 8 comes into contact with the side surface 6c, and the occurrence of partial wear or of plasticity deformation due to supporting the partial load of a cage 1, can be decreased.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an elevator device in which a car is raised and lowered while being guided by a rail on which a car is erected, and particularly relates to the configuration of a guide device having guide rollers that shift in response to an uneven load. It is something.

[Conventional technology]

Figures 5 and 6 show, for example, an elevator system shown in Japanese Utility Model Publication No. 11893/1983.
2) The doorway of the heel (1), f3) i The back of the basket txt opposite the doorway (2), (4) is a support provided at the bottom of the back (3), and (5) is one end that is attached to the support ( 4) Rope connected to.

and a well-known drive device consisting of a hydraulic jack to which this rope is engaged, (6) rails with a T-shaped cross section erected on both sides of the feet (1), and (6a) are T-shaped legs. (6b) is the top surface of the guide portion (6a), (6c) is the side surface, and (7) is pivoted to the top of the car fil and attached to the rails (6) on both sides, respectively. A corresponding guide portion (6a) is provided for the back (3)
) A guide roller made of a viscoelastic material such as rubber that is in contact with the side surface (6C), (8) is pivotally attached to the lower part of the heel (1) and is provided corresponding to the rails (6) on both sides, and )
A guide roller made of a viscoelastic material such as rubber that is in contact with the guide portions (6a) and 1 and 1 and 1' faces (6c) of the guide.

(9) A conventional top roller which is pivotally attached to the upper and lower parts of the heel tll, respectively, and is provided correspondingly to the rails (6) on both sides and contacts the top surface (6b) of the guide portion (6a). The elevator system is constructed as described above.

The lower part of the back (3) side of the car tll is suspended by the rope of the drive device (5), and the upper part of the car (1) is suspended by the guide roller (7) and the top roller (9) υ, and the lower part of the car tll is suspended by the rope of the drive device (5). The rail (
6) engaged with.

The heel (1) is raised and lowered by energizing the drive device (5).

[Problem to be solved by the invention]

In the conventional elevator system as described above, a relatively large unbalanced load generated on the heel and tll is supported by the rail (6) via the guide roller f7+ +81, but the unbalanced load causes twisting of the rail (6), Due to an installation error, etc., the entire width of the transfer surface of the guide roller (71+81) is not in contact with the side surface (6c) of the rail (6) as shown in Figure 6, and the width of the transfer surface is Only one side of the direction is in contact with the side surface (6c) of the rail (6).

As a result, the wear and tear of the guide roller f71 (f81, which has a small contact area with the rail (6) of 81 and a large load-supporting surface pressure) was accelerated, and when the elevator body stopped, the guide roller 171181 was temporarily damaged. Since plastic deformation occurs and vibrations are generated until the plastic deformation is recovered when operation is resumed, there is a problem in solving these problems.

The present invention has been made to solve this problem, and an object of the present invention is to provide an elevator device in which the guide rollers are displaced following the twisting of the rails, and the entire widthwise surface of the guide rollers is in contact with the side surfaces of the rails.

[Means to solve the problem]

The elevator apparatus according to the present invention is provided with an arm pivotally supported on a vertical axis of a car, and a guide roller is pivotally supported on this arm via a horizontal axis.

[Effect]

In this invention, the center of the vertical axis is arranged on the extension of the center line in the width direction of the guide roller, and the C vertical axis and the guide roller are arranged so as to face each other through the guide section of the rail. The guide roller is displaced following the twist of the rail, and the entire widthwise direction of the transfer surface comes into contact with the side surface of the rail.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. In the figure, the same symbols as in Figures 5 and 6 indicate corresponding parts, (7a) is an extension of the center line in the width direction of the guide roller (7), and αG is the vertical line from the seat plate of the car (1). One side of the vertical axis αυ is pivoted on the vertical axis QG and the guide part (
The arm body extends horizontally towards the other side surface (6c) by going around 6a), the horizontal axis (0) is drilled from the rotating end of the bowl body αυ, and (7) is pivoted on the horizontal axis α2. When you arrive at the transfer office, the information section (
6a) is a guide roller that faces the other side surface (6c) and is disposed at a position where the extension line (7a) coincides with the axis of the vertical axis α1. A guide roller (8) configured similarly to the guide roller (7) is provided at the bottom of the car +11.

In the elevator system configured as above, the rail (
The vertical shaft (ll) and the guide rollers +71 +81 are arranged to face each other via the guide part (6a) of the guide roller (7).
) (8) is provided so as to be rotatably displaceable in the width direction about the vertical axis αG. As a precaution, if the rail (6) is twisted and the side surface (6c) is tilted, the guide rollers (71 + 81) will rotate around the vertical axis aa, and the width of the guide rollers f71 + 81 will change as shown in Fig. 4. The entire surface of the direction and the rail (6) side (6
C) is maintained. For this reason rail (6)
Only one side in the width direction of the guide roller f71 +81 contacts the side surface (6c) to support the unbalanced load due to the heel (1), l! ! Occurrence of wear and tear.

To obtain an elevator system that can reduce the occurrence of temporary plastic deformation when the elevator is stopped, can extend the life of the guide roller f71 +81, can be maintained at low cost, and has less perturbation when the elevator is restarted. It is something.

〔Effect of the invention〕

As explained above, the present invention includes an arm pivotally supported by a vertical axis on a car, and a guide roller pivotally supported by a horizontal axis at the rotating end of the arm, and The vertical shaft and guide roller face each other.

In addition, the center of the vertical axis is placed on the extension of the center line in the width direction of the guide slot leek, and the guide roller follows the twisting of the rail and rotates, causing the rolling surface of the guide roller to appear on the side of the rail. The entire surface in the width direction is in contact and the unbalanced load due to the car is supported. For this reason.

It is possible to reduce the occurrence of uneven wear due to only one side of the guide roller in the width direction contacting the side surface of the rail, and the occurrence of temporary plastic deformation when the elevator is stopped, extending the life of the guide roller and reducing the cost. This provides an elevator system that is maintainable and generates less vibration when the elevator is restarted.

[Brief explanation of the drawing]

FIG. 1 is a side view conceptually showing an embodiment of an elevator apparatus according to the present invention, FIG. 2 is an enlarged view of the guide roller mounting portion of FIG. 1, FIG. 3 is a plan view of FIG. 2, and FIG. The figure is a diagram equivalent to Figure 3 explaining the operating state of the guide rollers in Figure 1, Figure 5 is a diagram equivalent to Figure 1 showing a conventional elevator system, and Figure 6 is a cross section taken along the line ■-■ in Figure 5. This is an enlarged view. 111...basket, (6)-...rail, (6
c) - Side, +71+81...Guide roller, a.
・Vertical axis, αυ...arm body, σ2...horizontal axis. In addition, the same parts or corresponding parts in FIG. 9 are indicated by the same reference numerals.

Claims (1)

[Claims] A car that goes up and down while being guided by an upright rail, one side of which is pivoted on a vertical shaft that is erected on the car facing one side of the rail, and the other side of the car that goes around the one side of the rail. An extending arm is pivotally supported by a horizontal shaft at the rotating end of the arm, and is in contact with the other side opposite to one side of the rail, and the extension line of the center line in the width direction is connected to the vertical axis. and a guide roller arranged at a position coinciding with the center of the elevator system.