JPH0776480A - Passenger conveyor centering device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a centering device for a passenger conveyor that can center an installed object without using a piano wire or plumb bob. [Configuration] A laser beam 21 is driven by driving a laser oscillator 22.
Is radiated from the reference position into the vertical plane, a part of the laser light 21 is transmitted by the half prism 36 provided on the bottom surface 32a of the bracket 32, and the other part is refracted at a right angle,
The bracket 32 is moved in the horizontal direction to detect a part of the laser light 21 by the first laser detector 34, and the bracket 32 is rotated about the vertical line to move the other part of the laser light 21 to the second position. The laser detector 35 of No. 1 detects the distance from the reference line 39 to the installation object by the steel scale 38 of the bracket 32 in this state. [Effect] The safety at the time of centering, the work efficiency, and the centering accuracy can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a passenger conveyor centering apparatus suitable for centering an installed object such as a guide rail provided on a passenger conveyor.

[0002]

2. Description of the Related Art FIG. 3 is a perspective view showing a state in which a plumb bob used in a conventional passenger conveyor centering method is suspended.
FIG. 4 is an enlarged perspective view of the guide rail portion of FIG. 3 and 4, the escalator in the process of being manufactured is shown.

Conventionally, for example, when the guide rail is centered during the manufacture of an escalator, as shown in FIG. 3, first, on the line connecting the reference point 2 of the upper terminal gear 1 and the reference point 4 of the lower terminal gear 3. After the piano wire columns 5 and 6 are erected at predetermined intervals, and the piano line 7 is stretched between the piano line columns 5 and 6, a plumb bob 8 is hung from the piano line 7. Lower. Next, as shown in FIG. 4, the guide rail 10 is centered by the scale 9 based on the plumb bob 8, and the guide rail 10 is fixed to the frame 20 forming the base body of the escalator.

An example related to this type of prior art is disclosed in Japanese Patent Laid-Open No. 3-61292.

[0005]

By the way, in the above-mentioned conventional centering method, the columns 5, 6 are arranged along the frame 20.
Since the piano wire 7 stretched between them is usually thin with a diameter of about 0.5 mm, it is difficult for the operator to see it.
There is a risk that workers will be caught in it, and improvements have been required in terms of safety. As described above, since the piano wire 7 is thin and difficult to see, there is a concern that the plumb wire 8 may be accidentally dropped when the upper end of the plumb wire 8 is caught on the piano wire 7.

When a plurality of plumb bobs 8 are hung from one piano wire 7 and centering is performed simultaneously at a plurality of places, the vibration of one plumb bob 8 is lowered by another piano wire 7 through the piano wire 7. Since it is transmitted to the swing 8, there is a concern that an error may occur in the centering based on the other swing 8.
Therefore, it is difficult to perform centering at a plurality of locations at the same time by using one piano wire 7, and there is a problem that the efficiency of the centering work cannot be improved.

Further, since the piano wire 7 stretched between the columns 5 and 6 is not parallel to the inclined surface of the frame 20, there are variations in the position where the plumb bob 8 is suspended, and the plumb bob 8 is hooked at a high position. At that time, since the worker performs work in a middle waist or stretches his back, physical fatigue occurs, work efficiency is reduced, and there is a safety problem.

The present invention has been made in view of the actual situation in the prior art, and an object thereof is a centering device for a passenger conveyor which can center an installed object without using a piano wire or plumb bob. To provide.

[0009]

In order to achieve this object, the present invention provides a laser oscillator which is arranged at a reference point on a frame of a passenger conveyor and radiates a laser beam in a vertical plane while rotating, and the frame. It is provided so that it can be moved upwards,
A bracket having a first wall surface and a second wall surface that are respectively orthogonal to the bottom surface, a first laser detector mounted on the first wall surface and facing the laser oscillator, and a second wall surface mounted on the second wall surface. And a second laser detector that is mounted on the bottom surface, transmits a part of the laser light in the direction of the first laser detector, and refracts the other part of the laser light at a predetermined angle. A spectroscope that reflects in the direction of the second laser detector and a length measuring device that is attached to the bracket and that measures the distance from the reference position of the bracket to the installation object are provided for the first wall surface. The second wall surface is arranged at an angle relative position.

[0010]

Since the present invention is configured as described above, the laser oscillator is arranged at the reference position on the frame and the first
The bracket including the laser oscillator and the second laser oscillator is provided on the frame, and the bottom surface of the bracket is arranged horizontally. Then, by driving the laser oscillator, the laser light is emitted in the vertical plane, and a part of the laser light is transmitted by the spectroscope provided on the bottom surface, and the other part of the laser light is refracted at a predetermined angle. . In this state, the bracket is moved horizontally to detect a part of the laser light by the first laser detector, and the bracket is rotated around the vertical line to detect the other part of the laser light. It is detected by the second laser detector.
As a result, the bracket is arranged at a predetermined position on the frame based on the position of the laser beam. Therefore,
The distance from the reference position of the bracket to the installed object is measured by the length measuring instrument provided on the bracket. With this, when the installed object is centered, the positioning can be performed by the length measuring instrument of the bracket based on the position of the laser beam, so that it is not necessary to use a piano wire or plumb bob.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a centering device for a passenger conveyor according to the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an overall configuration of an embodiment of a passenger conveyor centering device of the present invention, and FIG. 2 is a perspective view showing a portion of a laser detector provided in the centering device of FIG. 1 and 2, the same components as those shown in FIG. 3 described above are designated by the same reference numerals. That is, 1 is the upper terminal gear, 3
Is a lower terminal gear, 10 is a guide rail, and 20 is a frame.

As shown in FIG. 1, the centering device of the present embodiment is arranged in an intermediate portion on a frame 20 which is being manufactured, and has a laser oscillator 22 which emits a laser beam 21 in a vertical plane while rotating, Laser detectors 23 and 24 are provided on the upper and lower portions of the frame 20, respectively. A laser oscillator that emits laser light while rotating as described above is known.

The above-mentioned laser oscillator 22 is mounted on a plate 26 via a plate body 25.
6 is fixed on the frame 20. The plate 2
A position adjusting means (not shown) for adjusting the relative position of the laser oscillator 22 is provided below the unit 5. The position adjusting means is composed of a horizontal adjusting section, a movement adjusting section in the X-axis direction, and a rotation adjusting section, and the laser beam 21 is emitted from a predetermined reference position into the vertical plane by the operation of the position adjusting means. . As shown in FIG. 1, this vertical surface is a frame 2
It is set to be along the Y-axis direction of 0, that is, the longitudinal direction. The Y-axis direction indicated by the arrow 27 in FIG. 2 is the lateral direction of the frame 20.

The above-mentioned upper laser detector 23 is shown in FIG.
As shown in FIG. 3, a mounting member 31 disposed on the upper portion of the frame 20, a bracket 32 movably provided on the mounting member 31, and having a bottom surface 32a, a first wall surface 32b and a second wall surface 32c, and Position adjusting means 33 for adjusting the relative position of the bracket 32, a first laser detector 34 mounted on the first wall surface 32b and facing the laser oscillator 22, and a second wall surface 32c mounted on the second wall surface 32c. The second laser detector 35 and the first laser detector 34, which is mounted on the bottom surface 32a and partially emits the laser light 21.
Is provided in the bracket 32 and a spectroscope, for example, a half prism 36 that transmits the laser light 21 in the direction of, and refracts the other portion of the laser light 21 at a predetermined angle and reflects in the direction of the second laser detector 35. It is provided with a level 37 arranged in parallel with 32a, and a length measuring instrument, such as a long plate-shaped steel scale 38, which is attached to the bracket 32 so as to be capable of expanding and contracting.
A reference line 39 indicating a reference position is attached in the vicinity of the steel scale 38, and the steel scale 38 itself has a scale 4 indicating a distance from the reference line 39.
0 is attached.

The first wall surface 32b and the second wall surface 32c are respectively orthogonal to the bottom surface 32a,
The 2nd wall surface 32c is arrange | positioned with respect to the 1st wall surface 32b at a predetermined angle, for example, a relative position of a right angle.

The position adjusting means 33 is the bracket 3
2, an X-axis stage 41 that is movable in the X-axis direction, and a rotary stage 42 that is provided below the X-axis stage 41 and that can rotate about a line perpendicular to the upper surface of the mounting member 31. It is composed of a screw body 43 that is screwed into both ends of the mounting member 31. This screw body 43
A magnet plate 44 that can be attracted to the frame 20 is fixed to the lower end of the.

The above-mentioned level 37 is adapted to detect whether or not the bottom surface 32a is horizontal along the X-axis direction. Although not shown, the spirit level 37 is formed in a cylindrical shape, and the spirit level 3 is also formed from the back side of the first wall surface 32b.
The position of the bubbles within 7 can be detected. The lower laser detector 24 has the same structure.

In this embodiment, after the plate 25 and the plate 26 having the laser oscillator 22 are arranged in the middle of the frame 20 in advance, the laser beam 21 is emitted from the laser oscillator 22 from a predetermined reference position. The positions of the laser oscillator 22 and the plate body 25 are adjusted and fixed by a position adjusting means (not shown) so that the light is emitted in the vertical plane.
Next, the laser detectors 23 and 24 are arranged at desired positions in the longitudinal direction of the frame 20, for example, at the upper portion and the lower portion of the frame 20, respectively. When arranging the upper laser detector 23, the mounting member 31 including the first laser detector 34, the second laser detector 35 and the bracket 32 is placed on the frame 20 in advance, and the magnet plate 44 is attached. It is adsorbed on the upper surface of the frame 20 via the. Next, level 37
While watching, the screw body 43 is rotated to set the bracket 32 so as to be horizontal in the X-axis direction. Then, when the laser oscillator 22 is driven, the laser light 21 is emitted from the laser oscillator 22 and is spectrally separated by the half prism 36 through a predetermined vertical plane as schematically shown in FIG. At this time, the bracket 32 is moved in the X-axis direction by operating the X-axis stage 41, and the bracket 32 is stopped at a position where a part of the laser light 21 is detected by the first laser detector 34. Then, the laser light 21
The bracket 32 is rotated by the rotary stage 42 so that the second laser detector 35 detects the other part of the bracket. As a result, the bracket 32 is arranged at a predetermined position on the frame 20 based on the position of the laser light 21. Therefore, the steel scale 38 provided on the bracket 32 is expanded / contracted so that the tip end is applied to the side surface of the guide rail 10, and the distance from the reference line 39 of the bracket 32 to the guide rail 10 is measured.

In the embodiment thus constructed, when the installed object is centered, the positioning can be performed by the steel scale 38 of the bracket 32 based on the position of the laser beam 21, so that a piano wire or a plumb bob is slid. It is not necessary to use it. As a result, the centering work can be performed safely without causing a situation in which the operator is caught on the piano wire. Further, since no piano wire or plumb bob is used, centering errors of the guide rail can be performed at a plurality of positions at the same time without causing centering error due to shaking of the piano wire or the like.

In this embodiment, the half prism 36 is provided as a spectroscope for dispersing the laser light 21, but a half mirror or a combination of a half mirror and a mirror is used instead of the half prism 36. May be. Further, while the half prism 36 splits light at a right angle and the first wall surface 32b and the second wall surface 32c are arranged at relative positions at a right angle, instead of setting the spectral angle and the angle between the wall surfaces at a right angle. In addition, it is possible to set another predetermined angle.

Further, although the spirit level 37 is provided at the central position of the bracket 32 in this embodiment, the spirit level 37 may be arranged at a position other than the central position.

Further, in the present embodiment, a long plate-shaped steel scale 38 is provided as a length measuring device for measuring the distance from the reference position of the bracket 32 to the installed object, but a tape measure such as a convex ruler is used instead of the steel scale 38. Can be provided.
Further, by providing a magnet body at the tip of the steel scale 38, or by constructing the tip from a magnet and adsorbing the tip of the steel scale 38 to the installation object, the measurement operation by the steel scale 38 is facilitated. You can also do it.

Further, in this embodiment, the mounting member 31 is attached to the frame 20 by adsorbing it via the magnet plate 44, but instead of the magnet plate 44, the frame 20 is attached.
It is also possible to provide a clamp capable of pinching the side end of the.

Further, in this embodiment, the upper laser detector 2 is used.
3, the mounting member 31 and the position adjusting means 33 are provided,
If necessary, the mounting member 31 and the position adjusting means 33 may be removed, and the relative position of the bracket 32 may be adjusted while holding the bracket 32 manually.

[0025]

Since the present invention is configured as described above, the installed object can be centered without using a piano wire or plumb bob, and therefore the safety of the centering work can be improved as compared with the conventional one. In addition to being able to increase the efficiency, it is possible to improve the efficiency of the centering work, and moreover, it is possible to achieve highly accurate centering.

[Brief description of drawings]

FIG. 1 is a perspective view showing an overall configuration of an embodiment of a passenger conveyor centering device according to the present invention.

FIG. 2 is a perspective view showing a portion of a laser detector provided in the centering device of FIG.

FIG. 3 is a perspective view showing a state in which a plumb bob used in a conventional centering method for a passenger conveyor is suspended.

FIG. 4 is an enlarged perspective view showing a guide rail portion of FIG.

[Explanation of symbols]

 10 Guide Rail (Installed Object) 20 Frame 21 Laser Light 22 Laser Oscillator 23 Upper Laser Detecting Body 24 Lower Laser Detecting Body 31 Mounting Member 32 Bracket 32a Bottom 32b First Wall 32c Second Wall 33 Position Adjusting Means 34 1 laser detector 35 2nd laser detector 36 half prism (spectrometer) 37 level 38 steel ruler (length measuring instrument) 39 reference line

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Satoshi Yamamoto 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo Inside Hitachi Building System Service Co., Ltd.

Claims (1)

[Claims] 1. A laser oscillator, which is arranged at a reference point on a frame of a passenger conveyor and radiates laser light in a vertical plane while rotating, and a first movably mounted on the frame and orthogonal to a bottom surface. A bracket having a wall surface and a second wall surface, and attached to the first wall surface,
A first laser detector facing the laser oscillator, a second laser detector attached to the second wall surface, and a second laser detector attached to the bottom surface to detect a part of the laser light by the first laser detector. And a spectroscope for transmitting the laser beam in the direction of the optical axis, refracting the other part of the laser beam at a predetermined angle, and reflecting the laser beam in the direction of the second laser detector. The spectroscope is attached to the bracket and installed from the reference position of the bracket. A length measuring device for measuring a distance to an object, wherein the second wall surface is arranged at a relative position of a predetermined angle with respect to the first wall surface.