JP2011219206A - Shaft position adjustment device for passenger conveyor, and attachment and detachment method of handrail drive main spindle of passenger conveyor using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shaft position adjustment device for a passenger conveyor, capable of improving, in replacement of a shaft constituting the passenger conveyor, the operation efficiency in the operation of mounting a new shaft in a removal position of a removed shaft.SOLUTION: The shaft position adjustment device 1 for the passenger conveyor includes a first base 2; a second base 8; a winding drum 17 supported by the first base 2 rotatably around an axis; a wire 11 one end side of which is wound on the winding drum 17 with the other end being connected to the second base 8; a coil spring which rotates the winding drum 17 in a take-up direction of the wire 11; a wire rod movement acquisition device which acquires a movement quantity of the wire 11 according to the rotation quantity of the winding drum 17; a wire rod movement display device 30 which digitally displays the wire rod movement quantity acquired by the wire rod movement acquisition device; and a magnet 6 for retaining the first base 2 or second base 8 by a fixed portion constituting the passenger conveyor.

Description

  The present invention relates to, for example, an apparatus for adjusting a shaft position of a passenger conveyor used for adjusting the position of a handrail driving spindle of a passenger conveyor and a method for attaching and detaching a handrail driving spindle of a passenger conveyor using the same.

  A general escalator generates a main frame installed across the upper and lower floors of a building, steps provided to circulate between a pair of entrances and exits, and a driving force that circulates the steps. A driving machine, a pair of railings that are supported by the main frame and are erected on both sides in the width direction of the step, and are arranged on both sides in the width direction of the step, from the end of one entrance and exit along the balustrade upper edge It is guided to the other entrance / exit and is reversed at the end of the other entrance / exit and passed through the inside of the main frame, is moved to the vicinity of the end of one entrance / exit and is brought out of the main frame. A pair of moving handrails that circulate along a path that reverses at the end of one of the entrances and exits, and is provided in the main frame with the axial direction coinciding with the width direction of the step. And a pair of handrail drive devices that move the pair of moving handrails in synchronization with the steps. Eteiru (e.g., see Patent Document 1).

A pair of handrail drive devices are provided on both sides in the axial direction of the intermediate shaft, and each of the handrail drive devices is wound around the idler sprocket that is coaxially fixed to the intermediate shaft, and interlocked with the rotation of the intermediate shaft. And a handrail drive chain that moves, and is configured to convert the driving force of the handrail drive chain into the moving force of the moving handrail.
Further, although not described in detail in Patent Document 1, the step includes a step body having a step plate, a pair of driving rollers and a pair of follower rollers attached to the step body.

The follower roller guide rail, which is formed in an L-shape consisting of a rolling piece and a standing piece orthogonal to each other and guides the following roller, has a tip of the rolling piece opposed to each other, and the standing piece separates a pair of drips. It extends in the main frame from one entrance / exit to the other entrance / exit so as to face each other in the direction. Similarly, a driving roller guide rail that guides the driving roller extends in the main frame from one entrance / exit to the other entrance / exit.
At this time, the predetermined portion in the axial direction of the intermediate shaft is located near the lower portion of the predetermined portion of the follower roller guide rail that guides the follower roller of the step moving along the route for carrying passengers. In addition, the intermediate shaft is rotatably supported around a shaft by a pair of bearings supported by a pair of support fittings fixed to the main frame, for example.

In the escalator thus configured, the conventional replacement operation of the intermediate shaft is performed as follows.
Here, the intermediate shaft is pre-marked at the center in the axial direction, and the existing intermediate shaft is positioned with respect to the separating direction of the pair of follower roller guide rails, and the marking position is a pair of follower roller guide rails. Is supported and fixed to the main frame in a state in which the position is adjusted so as to coincide with the intermediate portion.
Then, the operator presses the long flat plate held by one hand against the surface of the upright piece constituting the outer peripheral side of one follower roller guide rail, and further, one end of the long flat plate is connected to the outer peripheral surface of the intermediate shaft. It is made to contact from above. Next, the operator grips the ruler with the other hand, places the ruler on one end of the long flat plate and arranges it along the axial direction of the intermediate shaft, and the contact portion and the marking position of the long flat plate on the intermediate shaft The distance between is measured as the alignment reference distance.

  Next, the operator removes the existing intermediate shaft together with the bearing from the support bracket, and arranges a new intermediate shaft that is previously inserted into the bearing at a position where the existing intermediate shaft is removed. At this time, the bearing is not fixed to the support fitting, and the intermediate shaft is disposed in parallel with the axial direction of the pair of balustrades.

  In the same way as the method of measuring the alignment reference distance with respect to the existing intermediate shaft, the operator determines the distance between the contact portion of the long flat plate to the intermediate shaft and the marking position with respect to the new intermediate shaft. Measured as the distance between two points. The operator once removes the long flat plate and the ruler, moves the intermediate shaft together with the bearing in the direction in which the distance between the two points coincides with the alignment reference distance, and measures the distance between the two points again. This is performed until the point-to-point distance matches the alignment reference distance. Then, the replacement operation of the intermediate shaft is completed by fixing the bearing to the support bracket.

JP 2003-182959 A

  Here, the axial position of the intermediate shaft needs to be adjusted with an accuracy of less than 1 mm. The worker is forced to take a cramped posture in a narrow working space in the main frame to keep the long flat plate held by one hand and the ruler held by the other hand in a predetermined posture. Further, under such conditions, the operator needs to read a fine scale of the scale, and there is a problem that the efficiency of exchanging the intermediate shaft is reduced.

  The present invention has been made to solve the above-described problems. In order to detach the shaft body constituting the passenger conveyor by exchanging work, a new shaft body is installed at the same place as the shaft body of the removed passenger conveyor. It is an object of the present invention to obtain a passenger conveyor shaft body position adjusting device capable of improving the work efficiency when performing an attaching operation and a method for attaching and detaching a handrail drive main shaft of a passenger conveyor using the same.

  The present invention is an apparatus for adjusting the position of a shaft of a passenger conveyor used for adjusting the position of a shaft constituting a passenger conveyor, and is rotatable about an axis on a first base, a second base, and a first base. A supported winding body, a wire whose one end is wound around the winding body, and the other end is connected to the second base, an urging means for rotating the winding body in the direction of winding the wire, and the winding body of the wire A wire movement amount acquisition device that acquires a movement amount according to the amount of rotation of the wire, a wire movement amount display device that digitally displays the wire movement amount acquired by the wire movement amount acquisition device, and the first base or the second base. Holding means to be held by a fixed portion constituting the passenger conveyor.

  The apparatus for adjusting the shaft position of a passenger conveyor according to the present invention includes holding means for holding the first base body or the second base body on a fixed portion constituting the passenger conveyor. As a result, for example, when the operator holds the first base by the holding means on the fixed portion in the main frame and moves the second base, it is not necessary to move the second base while pressing the first base. , You will not be forced into a cramped posture. Further, the shaft body position adjusting device is configured to obtain a movement amount corresponding to the rotation amount of the winding body of the wire rod that fluctuates in conjunction with the movement amount of the second base body and digitally display the movement amount. Therefore, the operator can recognize the movement amount of the wire rod at a glance.

  Therefore, for example, in the operation of replacing the handrail drive main shaft as the shaft body, if the first base is held by the holding means at a predetermined position of the fixed portion, the second base is fixed to the handrail drive main shaft on which marking or the like is applied. It becomes easy to read the movement amount of the wire rod as the alignment reference value when moved and applied to the positioning reference portion configured in the predetermined portion in the axial direction. Furthermore, if the first base is held by the holding means at a predetermined position of the fixed portion with respect to the new handrail drive main shaft disposed at the removal position by removing the existing handrail drive main shaft, the positioning reference portion of the handrail drive main shaft can be used. The operation of adjusting the position in the axial direction of the new handrail drive main shaft can be easily performed so that the movement amount of the wire displayed when the second base is applied matches the alignment reference value. Thereby, the work efficiency at the time of attaching / detaching a handrail drive main axis | shaft so that the handrail drive main axis | shaft newly attached can be correctly arrange | positioned in the removal position of the existing handrail drive main axis | shaft can be improved significantly.

It is a side view of an escalator. It is II-II arrow sectional drawing of FIG. It is the A section enlarged view of FIG. It is IV-IV arrow principal part sectional drawing of FIG. It is a front view of a bearing unit. It is a side view of a bearing unit. It is a front view of the shaft body position adjustment apparatus of the passenger conveyor which concerns on one embodiment of this invention. It is VIII-VIII arrow sectional drawing of FIG. It is IX-IX arrow sectional drawing of FIG. It is principal part sectional drawing around the handrail drive main axis | shaft explaining the replacement | exchange operation | work of the handrail drive main axis | shaft using the apparatus for adjusting the shaft body position of the passenger conveyor which concerns on one embodiment of this invention.

  First, prior to describing the apparatus for adjusting the shaft position of a passenger conveyor of the present application, the configuration of the escalator will be described with reference to the drawings.

  1 is a side view of the escalator, FIG. 2 is a cross-sectional view taken along the line II-II in FIG. 1, FIG. 3 is an enlarged view of a part A in FIG. 5 is a front view of the bearing unit, and FIG. 6 is a side view of the bearing unit.

  1 and 2, the escalator 40 includes a main frame 43 provided between a pair of entrances 42a and 42b provided on the upper and lower floors, and an upper machine room 44a provided on the upper floor side of the main frame 43. The motor 45 disposed in the upper machine chamber 44, the drive sprocket 46 disposed in the upper machine chamber 44a, the motor 45 and the drive sprocket 46 are coupled, and the drive chain that rotates the drive sprocket 46 in conjunction with the drive of the motor 45. 48, an upper sprocket 50 disposed coaxially with the drive sprocket 46, and a lower sprocket 51 disposed in a lower machine chamber 44b provided on the lower floor side of the main frame 43.

  Further, the escalator 40 includes a step chain 52 wound endlessly on the upper sprocket 50 and the lower sprocket 51, and an endless connection connected to the step chain 52, and a motor 45 between the pair of entrances 42a and 42b. A plurality of steps 56 that circulate in conjunction with the driving of the main frame 43, a pair of railings 55 that are erected so as to sandwich the steps 56 on both sides in the width direction of the main frame 43, and a pair of entrances 42a and 42b And a pair of moving handrails 61 that circulate and move in synchronization with the movement of the step 56.

  Here, the step 56 extends from one boarding / alighting opening 42a to the other boarding / alighting opening 42b, the forward path part for transporting passengers, the return path part located below the forward path part, and between the forward path part and one end of the return path part And a reversing unit that connects the other end to each other in a circulating manner. Further, the moving handrail 61 is guided along the upper edge of the balustrade 55 from the end of one of the entrances 42a and moves to the other entrance 42b, and reverses at the end of the other entrance 42b to be reversed to the main frame. 43 passes through the inside of 43, moves to the vicinity of the end of one of the entrances / exits 42a and goes out of the main frame 43, and circulates along a path that reverses at the end of one of the entrances / exits 42a.

  Further, the escalator 40 is extended in the main frame 43 so as to reach the handrail driving mechanism 70 for driving the moving handrail 61 by the driving force of the electric motor 45 and the one of the entrances 42a to the other entrance 42b. Drive roller guide rails 62A to 62D for guiding a drive roller 59 of a step 56, which will be described later, and a main frame 43 extending from one entrance / exit 42a to the other entrance / exit 42b. Tracking roller guide rails 63 </ b> A to 63 </ b> D for guiding the tracking roller 60.

  2 and 3, the main frame 43 is composed of upper chord members 43a and 43b that form both sides in the width direction and edges of the upper end, and lower chords that form the edges of both sides in the width direction and the lower end. A plurality of vertical members 43e fixed to the upper chord member 43a and the lower chord member 43c so as to pass between the upper chord member 43a and the lower chord member 43c, and an upper chord so as to pass between the upper chord member 43b and the lower chord member 43d. It has a plurality of vertical members 43f fixed to the material 43b and the lower chord material 43d.

  The upper chord members 43a and 43b are disposed on both sides of the step 56 relative to each other with respect to the width direction of the step 56, and are provided so as to extend from one entrance 42a to the other entrance 42b along the moving direction of the step 56. It has been. Further, the lower chord members 43c and 43d are arranged to face the upper chord members 43a and 43b below the upper chord members 43a and 43b. The plurality of vertical members 43e are arranged at intervals in the extending direction of the upper chord member 43a and the lower chord member 43c (extending direction of the main frame 43). Further, the plurality of vertical members 43f are arranged at intervals in the extending direction of the upper chord member 43b and the lower chord member 43d.

  The pair of balustrades 55 are also provided on the upper chord members 43a and 43b so as to be spaced apart from each other in the width direction of the main frame 43, and a moving handrail 61 that circulates along the periphery of the balustrade 55 is also main. The frames 43 are opposed to each other in the width direction.

  2 and 3, the step 56 is supported by the step main body 57 having a step plate 57a and the width of the step main body 57 so that the axial direction of the step main body 57 coincides with the width of the step main body 57. A step shaft 58 connected to an extension from the step main body 57, a pair of drive rollers 59 rotatably provided at both ends of the step shaft 58, and an axis supported by the step main body 57 and parallel to the step shaft 58 A pair of follower rollers 60 provided so as to be rotatable around and spaced apart from each other in the width direction of the step body 57.

  Each of the driving roller guide rails 62A to 62D and the follower roller guide rails 63A to 63D is made of metal as a material and is formed in an L-shaped cross section including rolling pieces and standing pieces that are orthogonal to each other.

  The pair of drive roller guide rails 62A and 62B are directed so that the tips of the rolling pieces face each other and the standing pieces extend above the rolling pieces and face the width direction of the main frame 43. It extends from the lower part of the entrance / exit 42a to the lower part of the other entrance / exit 42b. The pair of drive roller guide rails 62A and 62B are fixed to the vertical members 43e and 43f via the fixing bracket 73A. At this time, the pair of drive roller guide rails 62A and 62B is fixed at a height position for rolling and guiding the pair of drive rollers 59 of the step 56 that moves the forward path portion on the rolling piece.

  The pair of drive roller guide rails 62C and 62D is fixed to the vertical members 43e and 43f via the fixing bracket 73A, similarly to the drive roller guide rails 62A and 62B, below the drive roller guide rails 62A and 62B. Yes. At this time, the pair of drive roller guide rails 62C and 62D is fixed at a height position for rolling and guiding the pair of drive rollers 59 of the step 56 moving on the return piece on the rolling piece.

  The pair of follower roller guide rails 63A and 63B are oriented so that the tip of the rolling piece is opposed and the standing piece extends above the rolling piece and is opposed to the width direction of the main frame 43. It extends from the lower part of the mouth 42a to the lower part of the other entrance / exit 42b. The pair of follower roller guide rails 63A and 63B are fixed to the vertical members 43e and 43f via the fixing bracket 73B. At this time, the pair of follower roller guide rails 63A and 63B are fixed at a height position for rolling and guiding the pair of follower rollers 60 of the step 56 that moves on the rolling piece on the forward path. Further, the reference fixing surface 63a is constituted by a surface of an upright piece that constitutes the outer peripheral side of the other following roller guide rail 63B.

  The pair of follower roller guide rails 63C and 63D are fixed to the vertical members 43e and 43f via the fixing bracket 73B in the same manner as the follower roller guide rails 63A and 63B below the follower roller guide rails 63A and 63B. . At this time, the pair of follower roller guide rails 63C and 63D is fixed at a height position for rolling and guiding the pair of follower rollers 60 of the step 56 moving on the return piece on the rolling piece.

  As shown in FIGS. 1 to 3, the handrail drive mechanism 70 has the first power transmission sprocket 71 </ b> A fixed coaxially to the drive sprocket 46 and the upper sprocket 50, and the axial direction coincides with the width direction of the main frame 43. And a handrail drive main shaft 72 disposed in the main frame 43 at a height position between the steps 56 moving in the forward path portion and the return path portion, and a pair of bearings that rotatably support the handrail drive main shaft 72 about the axis. A unit 75 and a pair of shaft fixing means 90 for supporting the handrail drive main shaft 72 on the vertical members 43e and 43f via a pair of bearing units 75 are provided.

  The handrail drive mechanism 70 is wound endlessly around the second power transmission sprocket 71B and the first and second power transmission sprockets 71A and 71B, which are coaxially fixed to a predetermined portion in the axial direction of the handrail drive main shaft 72. The power transmission chain 64 for transmitting the rotational force of the first power transmission sprocket 71A to the second power transmission sprocket 71B and rotating the second power transmission sprocket 71B and the rotational force of the handrail drive main shaft 72 are applied. And a pair of handrail drive devices 80 provided on both sides of the main frame 43 in the width direction so as to be converted to a moving force for moving the pair of moving handrails 61 and transmitted to the moving handrail 61.

  As shown in FIG. 3, the handrail drive main shaft 72 is provided with a marking 72a as a positioning reference portion at a predetermined portion of the outer peripheral surface located at the center in the axial direction.

  Further, as shown in FIGS. 5 and 6, the bearing unit 75 is disposed between the inner ring 76a, the outer ring 76b, and the inner ring 76a and the outer ring 76b at intervals in the circumferential direction of the inner ring 76a and the outer ring 76b. The bearing 76 having a plurality of balls 76c and a pair of flange portions 77 extending from a predetermined portion of the outer peripheral surface of the outer ring 76b to both sides in the tangential direction of the predetermined portion. Further, each of the flange portions 77 is formed with a first mounting hole 77a in the thickness direction.

As shown in FIGS. 3 and 4, the handrail drive device 80 includes a first handrail drive sprocket 81, a power transmission conversion mechanism 82, and a handrail drive chain 89.
The power transmission conversion mechanism 82 includes a plate-shaped mounting plate 83a and a device support member 83 having a main frame fixing portion 83b extending from the back surface of the mounting plate 83a, four handrail driving rollers 85, and four pressure rollers. 86, a second handrail driving sprocket 87, and a tension adjusting sprocket 88.
Similarly, the other handrail drive device 80 is configured.

Further, the shaft fixing means 90 includes a flange mounting member 91 formed in an elongated body having an L-shaped cross section, a bolt 92 and a nut 93 that fasten and fix the flange portion 77 of the bearing unit 75 to the flange mounting member 91, a flange And a positioning convex portion 94 projecting from a predetermined portion of one piece of the mounting member 91.
In a predetermined part of one piece of the flange mounting member 91, the pair of second mounting holes 91 a is in a direction orthogonal to the other piece at a distance corresponding to the distance between the first mounting holes 77 a formed in the pair of flange portions 77. It is formed in the opening.
The positioning convex portion 94 protrudes from a portion of the flange mounting member 91 that is separated from the first mounting hole 77a by a predetermined distance in the direction away from the other first mounting hole 77a. When the bearing unit 75 is disposed on one piece of the flange member 91 with the first mounting hole 77a corresponding to the second mounting hole 91a, one flange portion 77 of the bearing unit 75 comes into contact with the positioning convex portion 94. It has become.

Next, the installation structure of the handrail drive mechanism 70 will be described.
A pair of flange mounting members 91 are fixed to the vertical members 43e and 43f located on both sides in the width direction of the main frame 43 at predetermined positions in the extending direction of the main frame 43, and extend from the vertical members 43e and 43f. It extends in the main frame 43 so that the ends face each other. At this time, one piece of the flange mounting member 91 is directed parallel to the width direction of the main frame 43 and the extending direction.

  The flange mounting member 91 is positioned between the pair of follower roller guide rails 63A and 63B and the pair of follower roller guide rails 63C and 63D in the height direction.

Further, the bearings 76 of the pair of bearing units 75 are fitted to both ends of the handrail driving main shaft 72, and the handrail driving main shaft 72 is supported by the bearing unit 75 so as to be rotatable about the axis. Further, the flange portion 77 of the bearing unit 75 is placed on one piece of the flange mounting member 91 with the first mounting hole 77a corresponding to the second mounting hole 91a. As shown in FIG. 4, one flange portion 77 of the bearing unit 75 is in contact with the positioning convex portion 94. One piece of the flange portion 77 and the flange mounting member 91 is fastened and fixed by a bolt 92 and a nut 93. At this time, the handrail drive main shaft 72 is disposed in the vicinity below the follower rollers 63A and 63B.
As described above, the handrail drive main shaft 72 is rotatably supported with respect to the main frame 43.

Further, the second power transmission sprocket 71B is coaxially fixed to a portion of the handrail drive main shaft 72 located between the pair of bearing units 75 and in the vicinity of one of the bearing units 75.
As described above, the power transmission chain 64 is wound around the first and second power transmission sprockets 71A and 71B.

Next, the installation structure of one handrail drive device 80 will be described.
The first handrail drive sprocket 81 is fixed to a portion near one end of the handrail drive main shaft 72 in the axial direction.
The four handrail drive rollers 85 of the power transmission conversion mechanism 82 are axially orthogonal to the surface of the mounting plate 83a, and are rotatable on the surface of the mounting plate 83a so as to be spaced apart from each other at equal intervals in the same direction. It is fixed coaxially to the attached shaft.

  The second handrail driving sprocket 87 is coaxially fixed to the handrail driving roller 85. The tension adjusting sprocket 88 is formed on the mounting plate 83a that is parallel to the surface of the mounting plate 83a and at a predetermined distance in the direction orthogonal to the alignment direction of the handrail driving roller 85 from the middle portion in the arrangement direction of the four handrail driving rollers 85. It is attached to the surface portion so as to be rotatable around an axis parallel to the axis of the handrail drive roller 85.

  Further, the pressure roller 86 is configured to be rotatable about its axis, and its axial direction coincides with the axial direction of the handrail driving roller 85. Although not shown in detail, the pressure roller 86 is in contact with or away from the handrail driving roller 85. Is supported by the mounting plate 83a. The pressure roller 86 is urged by a spring member (not shown) supported by the mounting plate 83a in a direction in which the outer peripheral surface is pressed against the outer peripheral surface of the handrail driving roller 85, and always presses the outer peripheral surface of the handrail driving roller 85. ing. As described above, the power transmission conversion mechanism 82 is assembled.

  Then, the power transmission conversion mechanism 82 has one surface of the mounting plate 83a facing the center side in the width direction of the main frame 43, and one moving handrail that moves in the balustrade 55 between the handrail driving roller 85 and the pressure roller 86. It is arranged so as to sandwich 61. At this time, the axial directions of the handrail driving roller 85 and the pressure roller 86 coincide with the width direction of the main frame 43. And the main frame fixing | fixed part 83b is fixed to the vertical member 43e, and the power transmission conversion mechanism 82 is supported by the vertical member 43e.

  Further, the handrail drive chain 89 is wound around the first and second handrail drive sprockets 81 and 87, and further extends between a pair of handrail drive rollers 85 on the inner side in the arrangement direction. Is wound around the tension adjusting sprocket 88. The attachment position of the tension adjusting sprocket 88 to the attachment plate 83a is set so that the tension of the handrail driving chain 89 becomes a desired tension. As described above, one handrail drive device 80 is installed.

  Similarly, the other handrail driving device 80 is installed so as to sandwich the other moving handrail 61. As described above, the handrail drive mechanism 70 is installed.

Next, the operation of the escalator 40 will be described.
When the electric motor 45 is driven, the upper sprocket 50 rotates in conjunction with the rotation of the drive sprocket 46 and the step chain 52 circulates and each step 56 connected to the step chain 52 also circulates and moves.
In the handrail drive mechanism 70, the first power transmission sprocket 71A rotates in conjunction with the rotation of the drive sprocket 46 rotated by the drive of the electric motor 45. Along with this, the power transmission chain 64 circulates and the second power transmission sprocket 71B is rotated.

Further, the handrail driving main shaft 72 rotates in conjunction with the rotation of the second power transmission sprocket 71B, and the rotational force of the handrail driving main shaft 72 is converted into a moving force for moving the moving handrail 61 by the handrail driving device 80. A pair of moving handrails 61 moves.
More specifically, when the handrail drive main shaft 72 is rotated in conjunction with the drive of the electric motor 45, the first handrail drive sprocket 81 attached to the handrail drive main shaft 72 rotates and the handrail drive chain 89 circulates and moves. Accordingly, the second handrail driving sprocket 87 and the tension adjusting sprocket 88 rotate. The handrail driving roller 85 that is coaxially coupled and fixed to the second handrail driving sprocket 87 also rotates, and the moving handrail 61 that is pressure-clamped between the handrail driving roller 85 and the pressure roller 86 is the handrail driving roller. It is circulated and moved by the frictional force between 85 and 85.

Next, the best mode for carrying out the present invention will be described with reference to the drawings.
7 is a front view of an apparatus for adjusting the position of a shaft of a passenger conveyor according to one embodiment of the present invention, FIG. 8 is a sectional view taken along the line VIII-VIII in FIG. 7, and FIG. 9 is a view taken along the arrow IX-IX in FIG. It is sectional drawing.

  7 to 9, the shaft body position adjusting device 1 includes a first base body 2 having a reference contact surface 6a pressed against the reference fixing surface 63a of the following roller guide rail 63B, a wire 11 as a wire, Wire winding means 15 is attached to the first base 2, and one end side of the wire 11 is wound, and the wire 11 is constantly biased in the direction of winding the wire 11. The shaft body position adjusting device 1 is acquired by the second base body 8 to which the other end of the wire 11 is attached, the wire movement amount acquisition device 25 that acquires the movement amount of the wire 11, and the wire movement amount acquisition device 25. A wire movement amount display device 30 that displays the movement amount of the wire 11, a pulley 33 that is supported by the first base 2 and on which the wire 11 is hung, and a battery 35 are provided.

The first base 2 is composed of a case 3 and a magnet 6 as a holding means attached to the case 3.
The case 3 includes a case main body 4 formed in a substantially hollow rectangular parallelepiped having a predetermined width and length and a predetermined height, and a protrusion projecting from a bottom portion located on one side of the case main body 4 in the height direction. 5 is provided.

A rectangular through hole 4 a whose longitudinal direction matches the length direction of the case body 4 is formed at the bottom of the case body 4. The convex part 5 protrudes from the edge part of the through-hole 4a, is extended so that it may gradually approach mutually from a pair of short-side edge part of the through-hole 4a, and the length of the short side of the through-hole 4a A pair of inclined portions 5a having the same width, a pair of shaft support portions 5b connecting one end and the other end in the width direction of the pair of inclined portions 5a, a pair of inclined portions 5a and a pair of shaft support portions 5b A first shaft abutting portion 5c for closing an opening formed at the tip.
A wire insertion hole 5d is formed at the tip of the one inclined portion 5a. Further, as shown in FIG. 7, a first alignment line 4b is printed on the outer peripheral surface of the case main body 4 located at a predetermined height from the end of the first abutting portion 5c.

  The magnet 6 is produced in a flat plate shape, and is attached so that one surface covers the main region of one outer wall surface in the length direction of the case body 4. The other surface of the magnet 6 exposed to the outside of the case body 4 constitutes a reference contact surface 6a.

Moreover, the 2nd base | substrate 8 is equipped with the column-shaped holding part 9 and the truncated cone-shaped convex part 10 protrudingly provided by the one end surface of the axial direction of the holding part 9, as FIG. 7 shows. .
The bottom part of the convex part 10 is connected with the one end surface of the holding part, and the front end surface of the convex part 10 comprises the 2nd axial contact part 10a.
In addition, a second alignment line 9a is printed on a portion of the outer peripheral surface of the grip portion 9 located at a predetermined height from the second shaft abutting portion 10a.

As shown in FIG. 8, the wire winding means 15 includes a winding body 17, and a spring spring 22 as an urging means connected to the winding body 17 so as to exert a restoring force to rotate the winding body 17, It has.
The winding drum body 17 has a winding drum main body 18 around which the wire 11 is wound, and a flat ring shape having a diameter larger than the outer diameter of the winding drum main body 18, and the center is aligned with the axial center of the winding drum main body 18. A pair of first flange bodies 19 fixed to both end faces of 18, a rotary shaft 20 press-fitted into the pair of flange bodies 19 such that both ends in the axial direction are located outside the pair of flange bodies 19, And a second flange body 21 fixed coaxially to the rotary shaft 20 with a predetermined interval from the flange body 19.

  The mainspring spring 22 is connected to the portion of the rotary shaft 20 between the first flange body 19 and the second flange body 21 so as to exert a restoring force (biasing force) for rotating the winding body 18 in one direction. Has been.

As shown in FIGS. 7 and 8, the wire movement amount acquisition device 25 includes an encoder 26, a calculation control unit 27, and a reset switch 28.
The encoder 26 includes a pulse disk 26A and a rotation detection unit 26B. The rotation detection unit 26B includes a pulse disk 26A, a light projecting unit 26a, and a light receiving unit 26b.

  The arithmetic control means 27 includes a CPU (not shown) that performs various calculations, a storage area that temporarily stores various data, and a RAM (not shown) that is used as a working space when the CPU performs arithmetic processing. A ROM (not shown) or the like that stores various programs to be calculated by the CPU is provided.

  As shown in FIGS. 7 and 8, the wire movement amount display device 30 includes a display 31 as a display means having a display surface 31a on a digital display screen, and an arithmetic control means 27.

Next, the assembly structure of the shaft body position adjusting device 1 will be described.
The display 31 is attached to the case body 4 with the display surface 31 a exposed at the upper surface located on the opposite side of the bottom of the case body 4 and on one surface in the width direction of the case body 4.

8 and 9, the rotation shaft 33a of the pulley 33 is rotatably supported by a bearing 34 fixed to the inner surfaces of the pair of shaft support portions 5b of the convex portion 5, and the pulley 33 rotates. It rotates around the shaft center integrally with the shaft 33a.
Further, as shown in FIG. 8, the winding body 17 is arranged with the axial direction of the rotating shaft 20 aligned with the width direction of the case body 4, and both ends of the rotating shaft 20 are on both sides in the width direction of the case body 4. Are supported by a pair of bearings 29 fixed to the inner surface of the rotary shaft 20 and rotate integrally with the rotary shaft 20 around the axis.

  Further, the pulse disk 26 </ b> A of the wire movement amount acquisition device 25 is fixed coaxially to the rotating shaft 20. Further, the rotation detection unit 26B is fixed to the case body 4 so that the light projecting unit 26a and the light receiving unit 26b are disposed to face each other via the pulse disk 26A.

  The wire 11 is wound on one end side around the winding drum main body 18, and an extension portion from the winding drum main body 18 is hooked on the pulley 33 and then pulled out of the case 3 through the wire insertion hole 5 d. ing. The other end of the wire 11 is connected to a portion of the second base 8 in the vicinity of the second shaft abutting portion 10a.

  At this time, one end of the wire 11 is fixed to the outer peripheral surface of the winding drum main body 18, and the urging force of the mainspring spring 22 works in the direction of rotating the winding drum main body 18 in the direction of winding the wire 11 around the winding drum main body 18. ing. The wire 11 is kept in tension by the urging force of the mainspring spring 22.

The arithmetic control means 27 is supported on the inner surface of the case body 4 located above the winding body 17.
The calculation control means 27 is connected to the rotation detection unit 26B of the encoder 26 via the communication cable 36 as shown in FIG.
A battery 35 is attached to a predetermined portion of the inner surface of the case body 4 and supplies power to the rotation detection unit 26B, the calculation control unit 27, the reset switch 28, and the display 31. Although not shown in detail, the reset switch 28 is connected to the arithmetic control unit 27 via a wiring, and is configured to switch an electrical output to the arithmetic control unit 27 in accordance with an operation.

In the shaft body position adjusting device 1 configured as described above, when the second base body 8 to which the other end of the wire 11 is connected is pulled with a predetermined force or more, the wire springs against the urging force of the mainspring spring 22. 11 is pulled out of case 3. At this time, the pulse disk 26A is rotated together with the winding body 17, and since it is well known, the rotation detector 26B is projected from the light projecting part 26a and received by the light receiving part 26A via the pulse disk 26A. According to the light received by 26b, information on the rotation angle when the pulse disk 26A rotates is output as a pulse signal.
Information relating to the rotation angle of the winding body 17 output from the rotation detector 26B is input to the arithmetic control means 27.

The rotation information of the winding body 17 is an amount proportional to the rotation angle of the winding body 17, and the calculation control means 27 is a wire that is drawn out or wound from the winding body 18 with respect to the reference position of the wire 11. 11 is calculated based on the rotation angle of the winding body 18. The reference position refers to the arrangement position of the wire 11 when the reset switch 28 is last operated.
If it is determined that the reset switch 28 has been operated, the arithmetic control unit 27 sets the current movement amount to 0, and calculates the movement amount of the wire 11 from the reference position of the wire 11.

  The arithmetic control unit 27 displays the calculated movement amount of the wire 11 on the display 31 in real time.

Next, a method for attaching and detaching the handrail drive main shaft 72 when replacing the handrail drive main shaft 72 will be described.
FIG. 10 is a cross-sectional view of a main part around the handrail driving main shaft for explaining a method of attaching and detaching the handrail driving main shaft using the passenger conveyor shaft body position adjusting device according to one embodiment of the present invention.

  As shown in FIG. 10, the operator removes the power transmission chain 64 and the handrail drive chain 89 from the sprockets 71 </ b> B and 81 in advance. Next, the operator operates the reset switch 28 in a state where the alignment lines 4 b and 9 a attached to the case body 4 of the first base 2 and the grip 9 of the second base 8 are aligned, and the current wire 11 Reset the travel distance.

  Further, the operator grips the first base 2, and the tip of the first shaft abutting portion 5 c of the case 3 is positioned on the outer periphery of the handrail drive main shaft 72 so that the first base 2 is positioned above the handrail drive main shaft 72. Abut on the surface from above. Further, the operator presses the reference contact surface 6 a provided on the magnet 6 against the reference fixing surface 63 a of the tracking roller guide rail 63 B, and holds the first base 2 on the tracking roller guide rail 63 B by the magnet 6. As a result, even if the operator removes his / her hand from the first base body 2, the first base body 2 moves relative to the tracking roller guide rail 63B by the force of the magnet 6 trying to attract the tracking roller guide rail 63B. There is no.

Next, the operator grips the grip portion 9 of the second base body 8, and moves the second base body 8 to the handrail drive main shaft 72 so that the wire 11 is pulled out from the wire insertion hole 5 d against the urging force of the mainspring spring 22. Then, the second abutting portion 10a of the second base 8 is brought into contact with the center of the marking 72a. The operator reads the movement amount of the wire 11 at this time as the alignment reference value.
Next, the operator removes the nut 93 from the bolt 92 from the flange portion 77 and the flange mounting member 91 and removes the handrail drive main shaft 72. The first base 2 is also removed.

Next, the operator newly prepares a replacement handrail drive main shaft to which the pair of bearing units 75, the pair of first handrail drive sprockets 81, and the second power transmission sprocket 71B are attached.
Hereinafter, the handrail drive main shaft for replacement will be described as the handrail drive main shaft 72 again.

  The worker associates the first mounting hole 77 a formed in the flange portion 77 with the second mounting hole 91 a formed in the flange mounting member 91, and connects the pair of bearing units 75 to one piece of the pair of flange mounting members 91. Place on top. That is, the handrail drive main shaft 7 is disposed at an approximate position from which the existing handrail drive main shaft 72 is removed. At this time, the one flange portion 77 is brought into contact with a positioning convex portion 94 protruding from one piece of the flange mounting member 91. Thereby, the position in the extending direction of the main frame 43 of the handrail drive main shaft 72 is determined.

  Then, the bolt 42 is inserted through the first mounting hole 77a and the second mounting hole 91a, and the nut 93 is screwed into the bolt 92. At this time, the nut 93 and the bolt 92 do not fasten and fix one piece of the flange portion 77 and the flange mounting member 91 so that the handrail drive main shaft 72 can be moved in the axial direction. Since there is a play of about several millimeters between the first mounting hole 77a and the bolt 92, an accurate arrangement position in the axial direction of the handrail drive main shaft 72, in other words, in the width direction of the main frame 43 is not determined.

  Next, the operator operates the reset switch 28 in a state where the alignment lines 4 b and 9 a attached to the case body 4 of the first base 2 and the grip 9 of the second base 8 are aligned, and the current wire 11 Reset the travel distance. In addition, the operator holds the first base 2, and the tip of the first shaft abutting portion 5 c of the case 3 is positioned on the outer periphery of the handrail drive main shaft 72 so that the first base 2 is positioned above the handrail drive main shaft 72. Abut on the surface from above. Further, the operator presses the reference contact surface 6 a provided on the magnet 6 against the reference fixing surface 63 a of the tracking roller guide rail 63 B, and holds the first base 2 on the tracking roller guide rail 63 B by the magnet 6.

  Next, the operator grips the grip portion 9 of the second base body 8, moves the second base body 8 along the handrail drive main shaft 72 to a position corresponding to the marking 72 a, and applies the second shaft contact of the second base body 8. The part 10a is brought into contact with the center of the marking 72a.

  The operator sets the position in the width direction of the main frame 43 of the handrail drive main shaft 72 so that the movement amount of the wire 11 displayed on the display surface 31a of the display 31 matches the alignment reference value that has been recorded in advance. Make fine adjustments.

In this state, the operator fastens and fixes one piece of the flange portion 77 and the flange mounting member 91 with the bolt 92 and the nut 93, and the replacement operation of the handrail drive main shaft 72 is completed.
Further, the operator winds the power transmission chain 64 and the handrail driving chain 89 around the sprockets 71B and 81, and returns the handrail driving device 80 to the original state.

  A passenger conveyor shaft body position adjusting device 1 according to the present invention includes a first base body 2, a second base body 8, a winding body 17 supported on the first base body 2 so as to be rotatable about an axis, and one end side wound. The wire 11 wound around the body 17 and connected at the other end to the second base body 8, the spring spring 22 for rotating the winding body 17 in the winding direction of the wire 11, and the amount of rotation of the winding body 17 of the wire 11 The escalator 40 includes the wire movement amount acquisition device 25 that acquires the movement amount corresponding to the wire movement amount, the wire movement amount display device 30 that digitally displays the wire movement amount acquired by the wire movement amount acquisition device, and the first base 2. And a magnet 6 to be held by the fixed portion. More specifically, the fixed portion is an upright piece of the follower roller guide rail 63B, and the first base 2 is held by the magnet 6 on the surface of the upright piece constituting the outer peripheral side of the follower roller guide rail 63B.

  Since the first base 2 is held by the follower roller guide rail 63B by the magnet 6, it can be maintained in a stable posture with respect to the follower roller guide rail 63B without being pressed by the operator. Therefore, when the second base 8 is moved by holding the first base 2 on the follower roller guide rail 63B by the magnet 6, it is not necessary to move the second base 8 while pressing the first base 2. Therefore, the operator is not forced to have a cramped posture. Furthermore, since the wire movement amount display device 30 digitally displays the movement amount from the reference position of the wire 11 calculated by the wire movement amount acquisition device 25, the operator can determine the movement amount of the wire 11 at a glance. Can be recognized.

  Accordingly, when the handrail drive main shaft 72 is detached and attached by replacement or the like, if the first base 2 is held on the reference fixing surface 63a of the follower roller guide rail 63B by the magnet 6, the second base 8 is marked with the marking 72a. It is easy to read the movement amount of the wire 11 at this time as the alignment reference value by moving it to a predetermined portion in the axial direction of the handrail drive main shaft 72 and bringing it into contact therewith. Further, if the first base 2 is held by the magnet 6 on the reference fixing surface 63a with respect to the new handrail drive main shaft 72 which is disposed at the removal position by removing the existing handrail drive main shaft 72, the marking of the handrail drive main shaft 72 is performed. Easily adjust the axial position of the new handrail drive spindle 72 so that the amount of movement of the wire 11 displayed when the second base 8 is applied to the portion 72a matches the alignment reference value. Can be done. Thereby, the work efficiency at the time of attaching / detaching the handrail drive main axis | shaft 72 so that the newly installed handrail drive main axis | shaft 72 may be correctly arrange | positioned in the removal position of the existing handrail drive main axis | shaft 72 can be improved significantly.

  Further, since the magnet 6 attached to the follower roller guide rail 63B is integrally provided on the first base 2, the first base 2 can be easily attached to and detached from the follower roller guide rail 63B, and the handrail drive spindle The work efficiency of the replacement work 72 can be further improved.

Further, according to the method for attaching and detaching the handrail drive main shaft 72 using the apparatus 1 for adjusting the shaft position of the passenger conveyor, the operator does not force the operator with a cramped posture, and the wire 11 can be easily used. Therefore, the work efficiency of the attaching / detaching operation of the handrail drive main shaft 72 can be improved.
In addition, since the handrail drive main shaft 72 is located near the lower side of the surface of the standing piece constituting the outer peripheral side of the follower roller guide rail 63B fixed in the main frame 43, the object to be held by the first base 2 is set as the follower roller. By using the standing piece of the guide rail 63B, the efficiency of the attaching / detaching operation of the handrail drive main shaft 72 can be further improved.

In this embodiment, the wire winding means 15, the wire movement amount acquisition device 25, and the wire movement amount display device 30 are described as being integrally disposed on the first base 2. The wire movement amount acquisition device 25 and the wire movement amount display device 30 may be integrally provided on the second base 8. In this case, one end of the wire 11 may be connected to the convex portion 5 of the first base 2, for example.
Further, although the wire has been described as being the wire 11, the wire may be of any type as long as it is configured as an elongated member that can be wound around the winding body 18 such as a string.

  Moreover, although the 1st base | substrate 2 demonstrated as what was comprised by the magnet 6 as a holding means attached to the case 3 and the case 3, the 1st base | substrate 2 was comprised only with the case 3, and a holding means is, for example, The leaf spring may have a pair of arms facing each other, and the standing piece of the case 3 and the follower roller guide rail 63B may be sandwiched between the pair of arms. In this case, for example, one surface in the length direction of the case body 4 of the case 3 is a reference contact surface that is applied to the reference fixing surface 63a.

  The first base 2 has the reference contact surface 6a in contact with the reference fixed surface 63a of the follower roller guide rail 63B, and the first shaft contact portion 5c in contact with the outer peripheral surface of the handrail drive main shaft 72. It was described as an arrangement. However, the 1st base | substrate 2 is not limited to what is arrange | positioned in contact with the follow-up roller guide rail 63B, You may arrange | position to the predetermined position of fixed parts other than the follow-up roller guide rail 63B. For example, a part of the main frame 43, other follower roller guide rails 63A, 63C, 63D, and drive roller guide rails 62A to 62D may be used.

Moreover, although demonstrated as what uses the shaft body position adjustment apparatus 1 for position adjustment of the handrail drive main axis | shaft 72 as a shaft body which comprises an escalator, the shaft body position adjustment apparatus 1 is another axis | shaft which comprises an escalator. It can also be applied to the body.
Moreover, although the passenger conveyor was demonstrated as what is an escalator, when adjusting the position of each shaft body of the moving walkway as a passenger conveyor, the shaft body position adjustment apparatus 1 can be used.

  Further, in the replacement work of the handrail driving main shaft 72, the first base 2 is described as working with the first shaft abutting portion 5c applied to the outer peripheral surface of the handrail driving main shaft 72. However, the first base 2 is fixed to the reference. As long as the same posture is maintained every time the surface 63a is repeatedly attached to and detached from the surface 63a, the shaft contact portion 5c is not necessarily provided and may be disposed at a position away from the handrail drive main shaft 72.

  DESCRIPTION OF SYMBOLS 1 Shaft body position adjustment apparatus, 2 1st base | substrate, 6 magnet (holding means), 8 2nd base | substrate, 11 wire (wire), 17 winding body, 25 wire rod movement amount acquisition apparatus, 30 wire rod movement amount display apparatus, 42a , 42b Entrance / exit, 43 Main frame, 45 Electric motor, 59 Drive roller (roller), 60 Follow roller (roller), 62A to 62D Drive roller guide rail (step rail), 63A to 63D Follow roller guide rail (step rail), 61 moving handrail, 63B following roller guide rail (fixed part), 72 handrail driving spindle, 80 handrail driving device.

Claims (4)

A device for adjusting the position of a shaft body of a passenger conveyor used for position adjustment of a shaft body constituting a passenger conveyor,
A first substrate;
A second substrate;
A winding body supported on the first base body so as to be rotatable around an axis;
One end side is wound around the winding body, and the other end is connected to the second base,
Urging means for rotating the winding body in the direction of winding the wire;
A wire movement amount acquisition device for acquiring a movement amount according to the rotation amount of the winding body of the wire;
A wire movement amount display device for digitally displaying the wire movement amount acquired by the wire movement amount acquisition device;
An apparatus for adjusting the position of a shaft body of a passenger conveyor, comprising: holding means for holding the first base body or the second base body on a fixed portion constituting the passenger conveyor. The fixed part is made of metal,
2. The shaft position of a passenger conveyor according to claim 1, wherein the holding means is a magnet integrally formed with the first base or the second base so as to be exposed on the surface of the first base. Adjustment device. A main frame constructed between a pair of entrances and exits, a pair of moving handrails provided so as to be able to circulate between the pair of entrances and exits in the width direction of the main frame, and an axial direction within the main frame Is supported by being aligned with the width direction of the main frame and rotated around the axis, and the handrail driving main shaft having a positioning reference portion at a predetermined position in the axial direction and the rotational force of the handrail driving main shaft move the moving handrail. A shaft body of a passenger conveyor according to claim 1 or 2, wherein the handrail drive main shaft of a passenger conveyor is attached to and detached from the pair of handrail drive devices that are converted into a moving force to be transmitted and transmitted to the pair of moving handrails. A method for detaching a handrail drive spindle of a passenger conveyor using a position adjusting device,
Holding the first base on the fixed portion in the main frame by the holding means so that the first base is positioned above the handrail drive main shaft;
Moving the second base body along the handrail driving spindle to a positioning reference portion of the handrail driving spindle and reading the wire movement amount as an alignment reference value;
Removing the first base and the handrail drive main shaft;
Arranging a new handrail drive spindle at a position where the handrail drive spindle is removed;
Applying the predetermined portion of the first base to the predetermined portion of the fixing portion and holding the first base by the holding means;
The second base is moved and applied to the positioning reference portion of the new handrail driving main shaft, and the position of the handrail driving main shaft in the axial direction is adjusted so that the wire movement amount matches the alignment reference value. Process,
A method for attaching and detaching a handrail drive main shaft of a passenger conveyor. The passenger conveyor has rollers, a step that circulates between the pair of entrances and exits, and a rolling piece that extends between the pair of entrances and exits and guides the rollers by rolling the rollers, And a step rail having an L-shaped cross section consisting of an upright piece extending upward on the rolling piece,
4. The method for attaching and detaching a handrail drive main shaft of a passenger conveyor according to claim 3, wherein the predetermined position of the fixing portion is a surface of the upright piece constituting the outer peripheral side of the step rail.

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