JP2018203494A - Passenger conveyor - Google Patents

Abstract

To provide a passenger conveyor that makes a bolt and a nut, used to fix a rail receiving plate and a rail, less likely to move along a groove in a rail.SOLUTION: A passenger conveyor comprises: a rail 30 along which respective wheels 21 of foot steps 20 run; and a rail receiving plate 42 fixed to a truss 10. The rail 30 has in a bottom plate 35 a groove 32 that is hollow, is open outside and is extending in the direction of extension of the rail 30. The rail receiving plate 42 has a bolt hole 45, and the rail 30 and the rail receiving plate 42 are fixed by use of a nut 60 provided inside the rail 30, and a bolt 50 passed through the bolt hole 45 and the groove 32 from below the rail receiving plate 42. The nut 60 comprises a plate spring member 70 fixed to a nut body 61. The plate spring member 70 comprises: an extension part 73 extended from inside to outside the rail 30 through the groove 32; and a pressing part 75 provided at the leading end of the extension part 73 and pressing a bottom plate 35 from outside the rail 30.SELECTED DRAWING: Figure 7

Description

  Embodiments of the present invention relate to passenger conveyors.

  A front wheel and a rear wheel are provided on the steps of the escalator, and an endless step chain is attached to the front wheels. For example, as described in Patent Document 1 and Patent Document 2, in the escalator, a front wheel rail and a rear wheel rail are provided so as to extend in the extension direction of the truss. As the step chain is driven by the driving device, the step moves along the rail. During movement, the front wheels run on the front wheel rails, and the rear wheels run on the rear wheel rails.

  As a rail of an escalator, what was formed by forming a thin plate as described in Patent Document 3, for example, has become widespread. Such a rail has a hollow inside, and a groove that opens to the outside is provided in the lower part of the rail, and the groove extends in the extension direction of the rail.

  For example, as depicted in Patent Document 3, a rail receiving plate (connection plate) is fixed to the truss, and the rail is fixed on the rail receiving plate. This fixing is performed by a nut provided inside the rail and a bolt inserted from below the rail receiving plate and passing through the rail receiving plate and the rail groove.

JP 2013-241250 A Japanese Patent No. 5748329 JP 2014-19529 A

  In general, the rail receiving plate and the rail are fixed while the rail is inclined. As a result, the nut placed inside the rail before fixing may fall down inside the rail, or the tightening bolt and nut may slide down along the rail groove. .

  This invention is made in view of such a situation, and it is a subject to provide the passenger conveyor which the bolt and nut used for fixation with a rail receiving plate and a rail are hard to move along the groove | channel of a rail. And

  The passenger conveyor of the embodiment is extended along the truss extending from one boarding location to the other boarding location, a step moving between the two boarding locations, wheels provided on the step, and the truss The rail includes a rail on which the wheel runs, and a rail receiving plate that is fixed to the truss and on which the rail rests. The rail is hollow and includes a groove that opens to the outside, and the groove includes the rail. The rail receiving plate extends from the end in the rail extension direction, the rail receiving plate is parallel to the bottom plate of the rail, includes a bolt hole, and a nut provided inside the rail, and the rail receiving plate from below the rail receiving plate. In a passenger conveyor in which the rail and the rail receiving plate are fixed by a bolt passing through a bolt hole and the groove, the nut includes a nut body and a leaf spring fixed to the nut body. The leaf spring member extends from the inside of the rail to the outside through the groove, and a pressing portion that is provided at a tip of the extension portion and presses the bottom plate from the outside of the rail. Is provided.

Sectional drawing which looked at the escalator 1 of embodiment from the side. The elements on larger scale of the vertical frame material 13 vicinity of FIG. AA sectional drawing of FIG. The perspective view which looked at the rail support member 40 from diagonally upward. The perspective view which looked at the rails 30 and 31 from diagonally downward. The perspective view which looked at the volt | bolt 50 and the nut 60 from diagonally upward. The perspective view which cut and showed the rail 30 for front wheels and the rail receiving plate 42 for front wheels in the position of the center axis | shaft of the volt | bolt 50 in the width direction. The figure which looked at the fixing structure of the rail 30 for front wheels from the arrow B direction of FIG. The figure which looked at the fixing structure of the rail 30 for front wheels from the arrow C direction of FIG. Sectional drawing of the integrated rail 136 of the example of a change.

1. Overall Structure of Escalator 1 As shown in FIG. 1, the escalator 1 includes a truss 10 that spans between a boarding place on the upper floor side and a boarding place on the lower floor side. The truss 10 is inclined at an angle of about 30 ° with respect to the horizontal plane. Inside the truss 10, there is provided a driving device for moving the step 20 between two boarding places. A front wheel 21 as a pair of left and right wheels is provided in the lower front part of the step 20, and a rear wheel 22 as a pair of left and right wheels is provided in the lower rear part of the step 20. The front wheel 21 is provided with an endless step chain 23 that circulates between two places of getting on and off. When the step chain 23 is driven by the driving device, the step 20 moves.

  As shown in FIGS. 1 and 2, a pair of left and right front wheel rails 30 and a rear wheel rail 31 that are inclined at the same angle as the truss 10 and extend in the extending direction of the truss 10 are provided in the truss 10. Is provided. In the truss 10, an outward path portion D of the rails 30 and 31 and a return path portion R of the rails 30 and 31 disposed below the outward path portion D are provided. These rails 30 and 31 are fixed to the truss 10 via a rail support member 40 described later. When the step 20 moves, the front wheel 21 travels on the front wheel rail 30 and the rear wheel 22 travels on the rear wheel rail 31. Further, on both sides of the truss 10 in the extending direction, there are provided reversing rails 36 for reversing the step 20 between the forward part D and the backward part R of the rails 30 and 31 and reversing the traveling direction thereof.

  A pair of left and right balustrades 24 are provided on the truss 10. The balustrade 24 is provided with a handrail belt 25 that moves in synchronization with the steps 20.

  The truss 10 includes a pair of left and right upper frame members 11 extending in the front-rear direction and a pair of left and right lower frame members 12 extending in parallel with the upper frame member 11 below the upper frame member 11. The truss 10 also includes a vertical frame member 13 that connects the upper frame member 11 and the lower frame member 12, and a horizontal frame (not shown) that connects the pair of left and right upper frame members 11 and the pair of left and right lower frame members 12. Material. The vertical frame member 13 and the horizontal frame member are provided at a plurality of locations of the truss 10. The vertical frame member 13 is extended in a direction orthogonal to the inclination direction of the truss 10.

2. Structure of Rail Support Member 40 As shown in FIGS. 2 to 4, a rail support member 40 extending toward the inside of the truss 10 is fixed to the vertical frame member 13. The rail support member 40 is a plate-like member that spreads in a direction orthogonal to the extending direction of the truss 10. The rail support member 40 is formed with a step portion including an upper step portion 41 and a lower step portion 46. A front wheel rail receiving plate 42 protrudes from the upper step portion 41 in the direction of inclination of the truss 10, and a rear wheel rail receiving plate 47 protrudes from the lower step portion 46 in the same direction as the front wheel rail receiving plate 42.

  As shown in FIG. 2, the front wheel rail 30 is placed on the front wheel rail receiving plate 42, and the rear wheel rail 31 is placed on the rear wheel rail receiving plate 47. The front wheel rail 30 and the front wheel rail receiving plate 42 are fixed by bolts 50 and nuts 60 which will be described later, and the rear wheel rail 31 and the rear wheel rail receiving plate 47 are fixed.

3. Structure of Rails 30 and 31 Each of the front wheel rail 30 and the rear wheel rail 31 shown in FIG. 5 is formed by bending one metal plate. These rails 30 and 31 are hollow (the inside is hollow), and a groove 32 is formed on the bottom plate 35 to open from the inside of the rails 30 and 31 to the outside. The groove 32 is formed by a butt portion between the metal plate ends when the metal plate is bent. The groove 32 extends in the extending direction of the rails 30 and 31 with a constant width. The groove 32 extends to both ends in the extension direction of the rails 30 and 31 and opens to both sides in the extension direction of the rails 30 and 31. Derailment prevention walls 33 and 34 that are higher than the traveling surface of the front wheels 21 or the rear wheels 22 are formed on the upper portions of the rails 30 and 31.

4). Structure of Bolt 50 and Nut 60 As shown in FIG. 6, the bolt 50 includes a head 51 and a threaded shaft 52. A plate-like flange 53 extended in a direction orthogonal to the axial direction of the bolt 50 is provided at the upper end portion (the end portion on the shaft 52 side) of the head portion 51 of the bolt 50.

  The nut 60 includes a nut body 61 and a leaf spring member 70 fixed to the nut body 61. The nut body 61 includes a hexagonal nut portion 62 in a plan view and a flange portion 63 formed at the lower end portion of the nut portion 62.

  The flange portion 63 is expanded in a direction orthogonal to the axial direction of the bolt 50 when the bolt 50 and the nut 60 are coupled. In the illustrated embodiment, the flange portion 63 is rectangular in plan view and includes four corners. However, the flange portion 63 may have another polygonal shape or a shape having a curve in part in plan view. Although the thickness of the flange part 63 is not limited, it is preferably half or more of the thickness of the bottom plate 35 of the rails 30 and 31, and more preferably 0.7 times or more of the thickness of the bottom plate 35. The size of the flange portion 63 in plan view will be described later.

  The leaf spring member 70 is formed from a single thin plate-like elastic body. The leaf spring member 70 is made of, for example, a spring steel material defined in JIS. The leaf spring member 70 includes a fixing portion 71 fixed to the upper surface of the flange portion 63 so as to avoid the nut portion 62. The fixing portion 71 is a plate-like portion that is substantially the same shape as the flange portion 63 in plan view. The upper surface of the flange portion 63 of the nut body 61 and the fixing portion 71 of the leaf spring member 70 are fixed by, for example, bonding with an adhesive, welding, or screwing.

  The leaf spring member 70 further includes extension portions 73 that are respectively extended from two opposing sides of the fixing portion 71, and a pressing portion 75 that is provided at the tip of each extension portion 73. The width of the extension 73 is equal to or less than the width of the groove 32 of the rails 30 and 31. The extension portion 73 includes an in-groove passage portion 74 formed by bending a part thereof downward from the fixed portion 71. The in-groove passage portion 74 is a portion disposed in the groove 32 of the rails 30 and 31 when the nut body 61 is disposed on the bottom plate 35 inside the rails 30 and 31. On the other hand, the width of the pressing portion 75 is wider than the width of the extension portion 73 and further wider than the width of the groove 32. The pressing portion 75 is parallel to the fixed portion 71 or inclined at a slight angle with respect to the fixed portion 71.

5. Fixing structure of rails 30, 31 and rail receiving plates 42, 47 As described above, the front wheel rail 30 is mounted on the front wheel rail receiving plate 42, and the rear wheel rail is mounted on the rear wheel rail receiving plate 47. 31 is on it. Here, the front wheel rail receiving plate 42 and the rear wheel rail receiving plate 47 are parallel to the bottom plate 35 of the front wheel rail 30 and the rear wheel rail 31. As shown in FIG. 4, bolt holes 45 are formed in the front wheel rail receiving plate 42 and the rear wheel rail receiving plate 47, respectively. The groove 32 of the front wheel rail 30 overlaps with the bolt hole 45 of the front wheel rail receiving plate 42 vertically, and the groove 32 of the rear wheel rail 31 overlaps with the bolt hole 45 of the rear wheel rail receiving plate 47 vertically.

  The front wheel rail 30 and the front wheel rail receiving plate are constituted by a nut 60 provided inside the front wheel rail 30 and a bolt 50 passing through the bolt hole 45 and the groove 32 from below the front wheel rail receiving plate 42. 42 is fixed, and the rear wheel rail includes a nut 60 provided inside the rear wheel rail 31 and a bolt 50 passing through the bolt hole 45 and the groove 32 from below the rear wheel rail receiving plate 47. 31 and the rear wheel rail receiving plate 47 are fixed.

  Here, the detailed fixing structure will be described with reference to FIGS. 7 to 9 by taking the fixing structure of the front wheel rail 30 and the front wheel rail receiving plate 42 as an example.

  The nut body 61 is disposed on the bottom plate 35 with the flange portion 63 facing down inside the front wheel rail 30. The flange portion 63 is in contact with the bottom plate 35 inside the front wheel rail 30. The flange portion 63 is extended inside the front wheel rail 30 in the extending direction of the front wheel rail 30 and the width direction of the front wheel rail 30 (this direction is defined as the width direction of the flange portion 63). The extension portions 73 of the leaf spring member 70 extend to both sides of the front wheel rail 30 in the extension direction, and extend to the outside of the front wheel rail 30 through the grooves 32 of the bottom plate 35 of the front wheel rail 30. A pressing portion 75 provided at the tip of the extension portion 73 hits the bottom plate 35 of the front wheel rail 30 from the outside of the front wheel rail 30. Here, since the width of the pressing portion 75 is wider than the width of the groove 32 as described above, the pressing portion 75 is in contact with portions of the bottom plate 35 on both sides of the groove 32. When the pressing portion 75 hits the bottom plate 35 from the outside of the front wheel rail 30, the bottom plate 35 is sandwiched between the pressing portion 75 and the flange portion 63 of the nut body 61.

  Since the leaf spring member 70 is an elastic body, the pressing portion 75 presses the bottom plate 35 from the outside to the inside of the front wheel rail 30 (and thus toward the flange portion 63 of the nut body 61). Accordingly, the bottom plate 35 is pressed between the flange portion 63 of the nut body 61 and the pressing portion 75 of the leaf spring member 70, and the nut 60 is less likely to move along the groove 32 of the front wheel rail 30. ing.

  Below the bottom plate 35 of the front wheel rail 30 is a front wheel rail receiving plate 42. The screw hole of the nut 60 coincides with the groove 32 of the front wheel rail 30 and the bolt hole 45 of the front wheel rail receiving plate 42 in the vertical direction (see FIG. 9). Then, the bolt 50 is passed through the bolt hole 45 and the groove 32 from below the front wheel rail receiving plate 42, and is coupled to the nut 60 inside the front wheel rail 30. Thus, the bottom plate 35 of the front wheel rail 30 and the front wheel rail receiving plate 42 are sandwiched and fixed by the flange 53 of the bolt 50 and the flange portion 63 of the nut 60.

  In the illustrated embodiment, the pressing portion 75 of the nut 60 is sandwiched between the bottom plate 35 of the front wheel rail 30 and the front wheel rail receiving plate 42. However, although not shown, the front wheel rail receiving plate 42 is shorter than the distance between the two pressing portions 75 of the nut 60, and the pressing portion 75 is sandwiched between the bottom plate 35 of the front wheel rail 30 and the front wheel rail receiving plate 42. It does not have to be.

  Although the fixing structure between the front wheel rail 30 and the front wheel rail receiving plate 42 has been described above, the rear wheel rail 31 and the rear wheel rail receiving plate 47 are also fixed in the same manner as described above using the bolt 50 and the nut 60. It is fixed by the structure.

  The rail support members 40 are provided on the plurality of vertical frame members 13 in the extending direction of the truss 10, and are provided on the vertical frame members 13 on both the left and right sides. In each rail support member 40, the front wheel rail 30 and the front wheel rail receiving plate 42 are fixed, and the rear wheel rail 31 and the rear wheel rail receiving plate 47 are fixed by the same fixing structure as described above. Yes. 2 to 9 show the fixing structure of the forward path portion D of the rails 30 and 31, the return path portion R of the rails 30 and 31 is also fixed by the same fixing structure as described above.

6). Here, the size of the flange portion 63 in a plan view is such that a part of the flange portion 63 hits the inner surface of the rails 30 and 31 even if the flange portion 63 tries to rotate around the bolt 50. The size is such that it cannot rotate (that is, it cannot move at all in the rotation direction, or even if it can move, it can move only a slight angle in the rotation direction). If the length of the longest portion passing through the rotation axis of the flange portion 63 in plan view is longer than the width inside the rails 30 and 31, the flange portion 63 cannot freely rotate inside the rails 30 and 31. Specifically, in the present embodiment, if the length of the diagonal line of the rectangle when the flange portion 63 is viewed in plan view is longer than the internal width of the rails 30 and 31, the flange portion 63 will rotate even if the flange portion 63 tries to rotate. Since the corner portion 63 hits the inner surface of the rails 30 and 31, the flange portion 63 cannot freely rotate inside the rails 30 and 31.

  Further, the length of the flange portion 63 in the width direction is equal to the width of the inside of the rails 30 and 31, and the flange portion 63 and the inner surfaces of the rails 30 and 31 are in contact with each other for a predetermined distance in the extension direction of the rails 30 and 31. For example, the flange portion 63 cannot move in the rotation direction inside the rails 30 and 31 at all. Specifically, in the present embodiment, if the width of the flange portion 63 that is rectangular in plan view is equal to the width of the rails 30 and 31, the flange portion 63 can move completely in the rotation direction inside the rails 30 and 31. Absent.

7). Method for Fixing Rails 30 and 31 The method for fixing the rails 30 and 31 according to the present embodiment will be described with reference to fixing the front wheel rail 30 to the front wheel rail receiving plate 42 as an example. First, the worker temporarily places the front wheel rail 30 on the front wheel rail receiving plate 42. When temporarily placed, the front wheel rail 30 is inclined.

  Next, the operator puts the nut 60 into the front wheel rail 30 while sliding along the groove 32. Specifically, first, the operator places the nut body 61 inside the front wheel rail 30 (on the bottom plate 35) at the end of the front wheel rail 30 in the extending direction, and passes the in-groove passage portion of the extension 73. 74 is disposed inside the groove 32, and the pressing portion 75 is disposed outside the front wheel rail 30 (below the bottom plate 35). Then, the worker keeps the arrangement so that the in-groove passage portion 74 of the extension portion 73 passes through the inside of the groove 32 and moves the nut 60 along the groove 32 to the position of the front wheel rail receiving plate 42. To move it. Even if the operator releases the nut 60 after the movement, the pressing portion 75 presses the bottom plate 35 toward the flange portion 63 of the nut main body 61, so that the nut 60 hardly falls along the groove 32. .

  Next, the operator passes the bolt 50 from below the front wheel rail receiving plate 42 into the bolt hole 45 of the front wheel rail receiving plate 42 and the groove 32 of the front wheel rail 30, and the nut 60 inside the front wheel rail 30. Combine. Here, when the operator turns the bolt 50 for coupling, a force to rotate the nut 60 also acts. However, since the corner portion of the flange portion 63 of the nut 60 hits the inner surface of the front wheel rail 30, the nut 60 cannot rotate. In addition, since the in-groove passage portion 74 of the leaf spring member 70 fixed to the nut body 61 is disposed in the groove 32 of the front wheel rail 30, the nut 60 cannot rotate. Therefore, the operator can turn the bolt 50 with respect to the nut 60 fixed so as not to rotate, and the bolt 50 and the nut 60 can be easily and reliably coupled. By connecting the bolt 50 and the nut 60, the front wheel rail 30 is fixed to the front wheel rail receiving plate 42.

  The worker performs the above fixing work at the positions of all the front wheel rail receiving plates 42. The same fixing operation is also performed for fixing the rear wheel rail 31 and the rear wheel rail receiving plate 47. Of course, the operator fixes not only the forward path portion D of the rails 30 and 31 but also the return path portion R.

8). Effect In the present embodiment, since the leaf spring member 70 is provided on the nut 60, the flanges 63 of the nut main body 61 and the pressing portion 75 of the leaf spring member 70 are used as described above. Since the bottom plate 35 is sandwiched while being pressed, the nut 60 is held difficult to move along the groove 32 of the bottom plate 35. Therefore, even if an operator arrange | positions the nut 60 in the inside of the rails 30 and 31, and releases | releases a hand, the nut 60 is not easy to roll down and go down. In addition, even when the operator releases the hand from the bolt 50 and the nut 60 when the tightening of the bolt 50 in the middle of fixing the rails 30 and 31 and the rail receiving plates 42 and 47 with the bolt 50 and the nut 60 is weak, The bolt 50 and the nut 60 are unlikely to slide down along the grooves 32 of the rails 30 and 31.

  Further, since the in-groove passage portion 74 of the leaf spring member 70 fixed to the nut main body 61 is disposed in the groove 32 of the rails 30 and 31, the nut 60 becomes the bolt 50 when the operator turns the bolt 50. It is possible to prevent the bolt 50 and the nut 60 from being joined together easily and reliably.

  In addition, since the nut 60 is provided with the flange portion 63 having the predetermined size, the nut 60 rotates together with the bolt 50 when the operator turns the bolt 50 as described above. Therefore, the bolt 50 and the nut 60 can be easily and reliably coupled.

  Further, since the length of the threaded portion of the nut 60 is increased by the thickness of the flange portion 63, the fixing force between the bolt 50 and the nut 60 is increased.

  Further, as described above, the pressing portion 75 of the leaf spring member 70 presses the portions of the bottom plate 35 on both sides of the groove 32, so that the force of the leaf spring member 70 holding the nut 60 is increased. Further, since the leaf spring member 70 includes the pressing portions 75 on both sides of the rails 30 and 31 in the extending direction, the force with which the leaf spring member 70 holds the nut 60 is increased.

9. Modification Examples Modification examples applicable to the above embodiment will be described. In addition, in FIG. 10 which shows a modification, the same code | symbol is attached | subjected to the same part as FIGS.

  As shown in FIG. 10, instead of the front wheel rail 30 and the rear wheel rail 31, an integrated rail 136 in which the traveling surface 130 of the front wheel 21 and the traveling surface 131 of the rear wheel 22 are integrally formed may be provided. good. The integrated rail 136 is formed by bending a metal plate, like the front wheel rail 30 and the rear wheel rail 31 of the above embodiment. The integrated rail 136 is hollow, and the bottom plate 135 is formed with a groove 132 that opens from the inside of the integrated rail 136 to the outside. The groove 132 is formed by a butt portion between the metal plate ends when the metal plate is bent. Although not shown, the groove 132 extends in the extending direction of the integrated rail 136 with a constant width. The groove 132 extends to both ends of the integral rail 136 in the extending direction, and opens to both sides of the integral rail 136 in the extending direction. As shown in FIG. 10, a step between the traveling surface 130 of the front wheel 21 and the traveling surface 131 of the rear wheel 22 exists above the groove 132.

  In order to fix the integrated rail 136 to the truss 10, a rail support member 140 similar to the rail support member 40 of the above embodiment is fixed to the vertical frame member 13 of the truss 10. The rail support member 140 is also provided with a rail receiving plate (not shown) that protrudes in the direction of the inclination of the truss 10 like the rail receiving plates 42 and 47 of the above embodiment.

  The integrated rail 136 of this modified example can also be fixed to the rail receiving plate using the bolt 50 and the nut 60 of the above embodiment. As described above, by using the bolt 50 and the nut 60 of the above-described embodiment, the rail can be fixed even if the rail has irregularities, steps, or the like.

  In addition, as a passenger conveyor, a moving sidewalk in which a step moves between two points having no difference in height can be cited. Even on a moving sidewalk or the like, the rail for running the wheel of the step can be fixed using the same bolt 50 and nut 60 as in the above embodiment.

  In addition to the above modification examples, various modifications, substitutions, omissions, and the like can be made without departing from the scope of the invention. The above embodiment and modification examples are illustrative, and the scope of the invention is not limited thereto. The above embodiments and modifications are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Escalator, 10 ... Truss, 11 ... Upper frame material, 12 ... Lower frame material, 13 ... Vertical frame material, 20 ... Step, 21 ... Front wheel, 22 ... Rear wheel, 23 ... Step chain, 24 ... Railing, 25 ... Handrail belt, 30 ... rail for front wheel, 31 ... rail for rear wheel, 32 ... groove, 33 ... anti-derailing wall, 34 ... anti-derailing wall, 35 ... bottom plate, 36 ... reverse rail, 40 ... rail support member, 41 ... upper stage, 42 ... rail receiving plate for front wheel, 45 ... bolt hole, 46 ... lower step, 47 ... rail receiving plate for rear wheel, 50 ... bolt, 51 ... head, 52 ... shaft, 53 ... flange, 60 ... Nut, 61 ... nut body, 62 ... nut portion, 63 ... flange portion, 70 ... leaf spring member, 71 ... fixing portion, 73 ... extension portion, 74 ... passage portion in groove, 75 ... pressing portion, 130 ... running surface, 131 ... Running surface, 132 ... Groove, 135 ... Bottom plate, 136 ... Integral rail 140 ... rail support member

The passenger conveyor of the embodiment is extended along the truss extending from one boarding location to the other boarding location, a step moving between the two boarding locations, wheels provided on the step, and the truss The rail includes a rail on which the wheel runs, and a rail receiving plate that is fixed to the truss and on which the rail rests. The rail is hollow and includes a groove that opens to the outside, and the groove includes the rail. The rail receiving plate extends from the end in the rail extension direction, the rail receiving plate is parallel to the bottom plate of the rail, includes a bolt hole, and a nut provided inside the rail, and the rail receiving plate from below the rail receiving plate. In a passenger conveyor in which the rail and the rail receiving plate are fixed by a bolt passing through a bolt hole and the groove, the nut includes a nut body and a leaf spring fixed to the nut body. The leaf spring member extends from the inside of the rail to the outside through the groove, and a pressing portion that is provided at a tip of the extension portion and presses the bottom plate from the outside of the rail. The pressing portion is sandwiched between the bottom plate of the rail and the rail receiving plate .

Claims (10)

A truss that extends from one boarding location to the other,
A step that moves between the two landing points;
Wheels provided on the steps;
A rail that extends along the truss and travels by the wheel;
A rail receiving plate fixed on the truss and on which the rail rests,
The rail is hollow and includes a groove opening in the bottom plate on the bottom plate,
The groove extends in an extending direction of the rail from an end portion of the rail,
The rail receiving plate is parallel to the bottom plate of the rail and includes a bolt hole,
In the passenger conveyor in which the rail and the rail receiving plate are fixed with nuts provided inside the rail and bolts that pass through the bolt holes and the grooves from below the rail receiving plate,
The nut includes a nut body and a leaf spring member fixed to the nut body,
The leaf spring member includes an extension portion that extends from the inside of the rail to the outside through the groove, and a pressing portion that is provided at a tip of the extension portion and presses the bottom plate from the outside of the rail. . The step includes a front wheel and a rear wheel as the wheel,
As the rail, a front wheel rail on which the front wheel travels and a rear wheel rail on which the rear wheel travels are provided,
As the rail receiving plate, a front wheel rail receiving plate on which the front wheel rail is mounted, and a rear wheel rail receiving plate on which the rear wheel rail is mounted, are provided.
The passenger according to claim 1, wherein the front wheel rail and the front wheel rail receiving plate are fixed by the bolt and the nut, and the rear wheel rail and the rear wheel rail receiving plate are fixed. Conveyor.   The passenger conveyor according to claim 1 or 2, wherein the pressing portion has a width wider than that of the groove and presses both sides of the groove of the bottom plate.   The passenger conveyor according to any one of claims 1 to 3, wherein the leaf spring member includes the extension portion and the pressing portion on both sides of the rail in the extension direction of the nut body.   The passenger conveyor according to any one of claims 1 to 4, wherein the pressing portion is sandwiched between the bottom plate of the rail and the rail receiving plate.   The passenger conveyor according to any one of claims 1 to 5, wherein the nut main body includes a flange portion extended in an extension direction and a width direction of the rail, and the flange portion is in contact with the bottom plate.   The passenger according to claim 6, wherein the flange portion is a member that hits the inner surface of the rail when the nut is about to rotate about the bolt in a state where the bolt and the nut are coupled or in the middle of the coupling. Conveyor.   The passenger conveyor according to claim 7, wherein a length of the flange portion in a width direction is equal to an inner width of the rail, and the flange portion and an inner surface of the rail are in contact with each other for a predetermined length in an extension direction of the rail. .   The passenger conveyor according to any one of claims 6 to 8, wherein the leaf spring member is fixed to an upper surface of the flange portion.   The passenger conveyor of any one of Claims 1-9 in which the level | step difference was provided in the part above the said nut inside the said rail.

Images