JP2016169058A - Length adjuster for guide rail for moving handrail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a length adjuster for a guide rail for a moving handrail that can precisely adjust a length of the guide rail for the moving handrail by pressing down a flexible rail while swinging it up and down.SOLUTION: A length adjuster 40 for a guide rail for a moving handrail constitutes a return path-side part of the guide rail 14 for the moving handrail, and is configured to adjust an overall length of the guide rail 14 for the moving handrail by pressing a flexible rail 23 vertically. An intermediate part is pivoted on an angle AG, a lower end part can press the flexible rail 23 down, and an upper end part includes a press-down bar 42 used as an operation lever 46. A T-shaped joint 52 which engages a C-shaped groove 23a by rotating by 90° around a longer axis of the press-down bar 42 is provided at the lower end part of the press-down bar 42, and the T-shaped joint 52 engages the C-shaped groove 23a to press the flexible rail 23 down or up by vertical movement of the press-down bar 42.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a length adjusting device for a guide rail for a handrail, and more particularly to a manual length adjusting device.

  In the escalator, the moving handrail is movably attached to the guide rail for the moving handrail provided on the escalator body, and the moving handrail is prevented from loosening by adjusting the construction length of the guide rail for the moving handrail. ing. More specifically, a part of the guide rail for the moving handrail is constituted by a flexible rail, and by adjusting the size of the gap between the flexible rail and the other part, the guide rail for the moving handrail is used. The total length of the guide rail is adjusted so that the moving handrail does not loosen.

  In Patent Document 1, the flexible rail and the guide rail for the moving handrail are pushed down through a pressing portion that is rotatably supported by the skirt guard and supported by one end of the operation shaft. A length adjusting device for adjusting the gap is disclosed.

JP 2013-119444 A

  In the length adjusting device disclosed in Patent Document 1, the flexible rail can be pushed down, but the flexible rail cannot be pushed up. It is not possible to confirm whether the flexible rail is not caught. For this reason, there exists a problem that the length adjustment of the guide rail for moving handrails cannot be performed accurately.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a moving handrail guide rail length adjusting device capable of accurately adjusting the length of a moving handrail guide rail by pushing down the flexible rail while swinging up and down. is there.

  The length adjusting device for the guide rail for moving handrail according to the present invention comprises a flexible rail provided with a C-shaped groove for constituting a part on the return path side of the guide rail for moving handrail and being attached to the escalator body. A length adjusting device that adjusts the overall length of the guide rail for moving handrails by pressing in the vertical direction. The length adjusting device is pivotally supported by the middle part of the escalator body, and the lower end part pushes down the flexible rail. In addition, the upper end includes a pressing bar used as an operation lever, and the lower end of the pressing bar engages with the C-shaped groove by rotating a predetermined angle about the longitudinal axis of the pressing bar. A T-shaped joint is provided, and the flexible rail can be pushed down or pushed up by the vertical movement of the push-down bar by engaging the T-shaped joint with the C-shaped groove.

  According to the guide rail length adjusting device for a moving handrail according to the present invention, in order to pivotally support the intermediate portion of the push-down bar on the escalator body, a support shaft plate is rotatably supported on the push-down bar. It is preferable that the groove provided in the plate is engaged with an angle fixed to the escalator body to constitute the holding portion of the push-down bar.

  The length adjusting device for the guide rail for the handrail according to the present invention preferably further includes a measuring unit for measuring the pressing force of the push-down bar and a display unit for displaying the measurement value of the measuring unit. is there.

  According to the length adjusting device for the guide rail for the handrail according to the present invention, the flexible rail can be moved up and down by being pushed down or pushed up. For this reason, it is possible to adjust the total length of the guide rail for the moving handrail by depressing the flexible rail by a predetermined amount after confirming whether the flexible rail operates smoothly when moved up and down. As a result, it is possible to accurately adjust the length of the guide rail for the moving handrail.

It is a figure which shows the whole structure of the escalator to which the length adjustment instrument of the guide rail for moving handrails which is embodiment which concerns on this invention is applied. It is the elements on larger scale of the area | region A shown in FIG. It is sectional drawing which shows the periphery structure of the moving handrail in the area | region A shown in FIG. It is sectional drawing which shows the fixing structure of the flexible rail in the BB cross section shown in FIG. It is a disassembled perspective view which shows the structure of the movable metal fitting, core material, and flexible rail which are contained in the area | region A shown in FIG. It is a figure which shows the whole structure of the length adjustment instrument of the guide rail for movable handrails which is embodiment which concerns on this invention. (A) is a figure which shows the state which removed the T-shaped joint from the case, (b) is a figure which shows the state which inserted the T-shaped joint in the support shaft of a length adjustment tool, (c) is a figure (b) It is a figure which shows the state which rotated the T-shaped joint 90 degrees from the state of (). It is a perspective view of the T-shaped joint shown in FIG. It is a figure which shows the structure of the T-type joint and case seen from the direction C shown in FIG. It is a figure which shows the structure of the ratchet mechanism arrange | positioned between a pressing bar and a rotation support part. It is a figure which shows the state at the time of use which attached the length adjustment tool of the guide rail for movable handrails which is embodiment which concerns on this invention to the angle. (A) is the elements on larger scale which show the state which inserted the T-joint of the length adjustment instrument of the guide rail for moving handrails shown in FIG. 11 in the flexible rail, (b) is T from the state of (a). It is the elements on larger scale which show the state which rotated the mold joint 90 degrees.

  Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In this description, specific shapes, materials, numerical values, directions, and the like are examples for facilitating the understanding of the present invention, and can be appropriately changed according to the application, purpose, specification, and the like. In addition, when a plurality of embodiments and modifications are included in the following, it is assumed from the beginning that these characteristic portions are used in appropriate combinations.

  FIG. 1 shows an escalator 10 using a length adjusting device (hereinafter, appropriately expressed as a length adjusting device) of a guide rail for a moving handrail of an escalator according to the present invention. FIG. 2 is a partially enlarged view of the area A shown in FIG. 1, in which the illustration of the moving handrail 12 and the balustrade 13 is omitted.

  The escalator 10 is a passenger conveyor device in which a plurality of steps 11 circulate between an upper floor and a lower floor. On both sides of step 11, a moving handrail 12 that moves in conjunction with step 11 and a balustrade 13 that supports the moving handrail 12 so as to be movable are provided.

  The step 11 is attached to an endless step chain 15. The step chain 15 is stretched over the sprockets 16 and 17, and the sprocket 16 is rotationally driven by a driving device (not shown). As a result, the step chain 15 moves between the sprockets 16, 17, and a plurality of steps 11 connected by the step chain 15 circulate between the upper floor entrance 18 and the lower floor entrance 19. To do.

  The moving handrail 12 is movably fitted to a moving handrail guide rail 14 provided on the balustrade 13. The moving handrail 12 is driven so as to be interlocked with the movement of step 11 by a handrail driving unit (not shown).

  FIG. 3 is a cross-sectional view showing a peripheral configuration of the moving handrail 12 in the region A shown in FIG. In the figure, illustration of a part of the structure such as the truss frame FL is omitted. The balustrade 13 is a side wall provided on both sides of the step 11. The balustrade 13 includes a balustrade frame 13a, an outer panel 13b, and a balustrade panel 20. The balustrade frame 13 a supports the lower end of the balustrade panel 20. A skirt guard 21 provided along both sides of the step 11 and an inner deck board 22 for closing a gap between the balustrade panel 20 and the skirt guard 21 are installed below the balustrade frame 13a. The skirt guard 21 and the inner deck board 22 are detachably attached to the angle AG. The angle AG is a long member having a substantially L shape disposed along both side surfaces of the step 11, and both ends thereof are supported by the truss P.

  As shown in FIG. 1, the guide rail 14 for the moving handrail is formed endlessly from the entrance 18 to the entrance 19, the forward path portion is installed along the upper edge of the balustrade 13, and the return path portion is the escalator 10. It is provided inside the truss P that is not visible to the user. The moving handrail guide rail 14 is fixedly supported by a truss frame FL shown in FIG.

  As shown in FIG. 2, a part of the return rail side of the guide rail 14 for the handrail is divided, and the flexible rails 23 are arranged so as to be connected to both ends of the divided part. The flexible rail 23 has a role of adjusting the total length of the guide rail 14 for moving handrails by adjusting the mounting position.

  4 is a cross-sectional view taken along the line BB showing the configuration of the upper floor side end portion of the flexible rail 23 shown in FIG. FIG. 5 is an exploded perspective view showing the configuration of the movable metal fitting 32, the bracket 36, and the flexible rail 23 shown in FIG. As shown in FIG. 5, the flexible rail 23 is a long thin plate made of plastic, for example, having a C-shaped groove 23a formed on the upper surface along the longitudinal direction, and is curved so as to be convex downward. The both ends are fixed by. As shown in FIG. 2, the lower floor side end portion of the flexible rail 23 is fixed to the truss frame FL by the fixing bracket 30 and the bolt 30 a, while the upper floor side end portion of the flexible rail 23 is the movable bracket 32. The bolt 33, the core member 34, and the bracket 36 are used to fix the truss frame FL. The movable metal fitting 32 is a metal fitting having a substantially inverted U-shaped cross section, and two long holes 32a for fixing the bolts 33 are formed on the upper surface along the longitudinal direction. The core member 34 is inserted into the C-shaped groove 23a in order to sandwich and fix the flexible rail 23 between the movable bracket 32, and a screw hole for fixing the bolt 33 corresponding to the long hole 32a. Two 34a are provided. The bracket 36 is formed in an approximately L shape, and one side is fixed to the truss frame FL via a mounting bracket 37, and the other side is fixed to the flexible rail 23 by a bolt 33. Thereby, the flexible rail 23 can be fixed to the truss frame FL. The upper end of the flexible rail 23 and the end of the guide rail 14 for moving handrail are opposed to each other with a gap α.

  FIG. 6 is a diagram showing an overall configuration of a length adjustment tool 40 for a guide rail for a moving handrail according to an embodiment of the present invention. FIG. 7A is a view showing a state in which the T-shaped joint 52 is removed from the length adjusting device 40, and FIG. 7B is a view in which the T-shaped joint 52 is inserted into the support shaft 48 b of the length adjusting device 40. FIG. 2C shows a state in which the T-joint 52 is rotated by 90 ° from the state shown in FIG. FIG. 8 is a perspective view of the T-shaped joint 52. FIG. 9 is a diagram illustrating the configuration of the T-shaped joint 52 and the measurement unit 48 when viewed from the C direction illustrated in FIG. 6. In addition, illustration of the fixing pin 49 is omitted in FIGS. 7B and 7C.

  The length adjusting device 40 includes a pressing bar 42 and a support shaft plate 54 that pivotally supports the pressing bar 42. The push-down bar 42 is a rod-like member bent in a substantially Z shape at an intermediate portion and has a rotation shaft 42a. The push-down bar 42 includes a connecting bar 44 formed on one end side and an operation lever 46 formed on the other end side, and an upper end portion of a vertical bar 45 is connected to a bolt 47 at the distal end portion of the connecting bar 44. It is pivotally supported by using. In addition, a plurality of connection holes 44a and 45a are provided in the front end portion of the connection bar 44 and the upper end portion of the vertical bar 45, respectively, at equal pitch intervals along the longitudinal direction. Thereby, the connection position of the vertical bar 45 can be adjusted. The vertical bar 45 is provided with a measuring unit 48 for measuring the pressing force and a T-shaped joint 52. The measuring unit 48 is composed of, for example, a pressure sensor constituted by a pressure sensitive element or the like, and has a function of converting the pressing force of the T-shaped joint 52 into an electric signal and outputting it to the display unit 59 via the lead wire 48a. Yes. Further, as shown in FIG. 7A, a support shaft 48 b extending downward is provided on the bottom surface of the measurement unit 48. The support shaft 48b is formed with a protruding portion 48c projecting in the radial direction and a through hole 48d penetrating in the radial direction. The protrusion 48c is formed in a columnar shape, and engages with an engagement groove of a T-shaped joint 52 described later. The through hole 48d is formed so that the fixing pin 49 can be inserted in a state where the T-shaped joint 52 is inserted.

  As shown in FIG. 8, the T-shaped joint 52 includes a base portion 52a formed in a cylindrical shape and a protruding portion 52b protruding in the radial direction from the lower end portion of the base portion 52a. The base 52a is provided with an engaging groove 52c that extends downward from the upper end surface and then extends in the circumferential direction by a quarter of a circle and has a substantially L shape as a whole. As shown in FIGS. 7B and 7C, the engagement groove 52c is a groove for engaging the protrusion 48c of the support shaft 48b. The T-joint 52 is provided with through holes 52d and 52e that penetrate the base portion 52a in the radial direction. The through holes 52d and 52e are arranged so as to be orthogonal to each other, and are formed so that the fixing pins 49 can be inserted therethrough. The through holes 52d and 52e are respectively provided at positions where the through holes 48d of the support shaft 48b overlap when the base portion 52a rotates. As shown in FIG. 7B, the through hole 52 d has a role of fixing the protruding portion 52 b at a position where it can be inserted into the C-shaped groove 23 a of the flexible rail 23. On the other hand, as shown in FIG. 7 (c), the through hole 52e rotates the T-joint 52 from the state shown in FIG. 7 (b) by a predetermined angle, for example, 90 ° to engage the protrusion 52b with the flexible rail 23. It has the role of fixing in a possible state. Thus, the T-shaped joint 52 is supported on the support shaft 48b so as to be rotatable within a range of 90 °, and can be detached from the support shaft 48b.

  As shown in FIG. 6, the support shaft plate 54 is a substantially rectangular parallelepiped support plate that is long in the vertical direction and rotatably supports the operation lever 46 via the rotation shaft 42a. A holding groove 54a is formed on the support shaft plate 54 below the rotation shaft 42a. The holding groove 54a functions as a holding portion of the operation lever 46 by engaging with the angle AG. In the present embodiment, the length adjusting device 40 is fixed using the holding groove 54a, but may be fixed to the skirt guard 21 using a bolt or the like.

  FIG. 10 is a diagram illustrating a configuration of a ratchet mechanism 60 disposed between the support shaft plate 54 and the operation lever 46. The length adjusting device 40 includes a ratchet mechanism 60 that fixes the push-down bar 42 at the rotation position when the operation lever 46 is pushed up and rotated in the rotation direction D. The ratchet mechanism 60 is supported by a claw wheel 62 fixed to the operation lever 46 of the push-down bar 42 and a rotation shaft 54b fixed to the support shaft plate 54, and the claw wheel 62 rotates in a direction opposite to the rotation direction D. It has the nail | claw 64 which controls doing. The ratchet wheel 62 has corrugated teeth formed at the periphery thereof, and is configured to rotate as the push-down bar 42 rotates.

  The claw 64 is pivotally supported by a rotation shaft 54b fixed to the support shaft plate 54, and is urged toward the claw wheel 62 by an urging force of an elastic spring 54c attached to the rotation shaft 54b. This prevents the ratchet wheel 62 from rotating in the direction opposite to the rotation direction D. Further, the claw 64 is provided with a through hole 64a on the tip end side, and a wire 58a connected to the release lever 57 is connected to the through hole 64a. The wire 58a is a member for rotating the claw 64 in a direction to release it from the claw wheel 62 against the urging force of the elastic spring 54c.

  As shown in FIG. 6, the grip for grip 56 is provided at the tip of the operation lever 46. The release lever 57 has a support shaft 57 a at one end, and the support shaft 57 a is rotatably supported by a rotation support portion 46 a fixed to the lower portion of the gripping grip 56. Further, a rotating arm 58 is fixed to the support shaft 57a, and the rotating arm 58 and the release lever 57 are disposed so as to have a substantially L shape, and the wire 58a is attached to the tip of the rotating arm 58. It is connected. For this reason, the claw 64 is rotated against the urging force of the elastic spring 54c by rotating the release lever 57 upwards, for example, by hand, and the fixed position of the operation lever 46 is released. On the other hand, when the hand is released from the release lever 57, the claw 64 is engaged with the claw wheel 62 by the biasing force of the elastic spring 54c, and the rotation position of the operation lever 46 is fixed again. A display unit 59 for displaying the measurement value of the measurement unit 48 is attached to the upper surface of the operation lever 46. Thereby, the flexible rail 23 can be pressed while confirming the pressing force of the T-shaped joint 52. In the present embodiment, the length adjusting device 40 includes the measurement unit 48 and the display unit 59. However, for example, when it is not necessary to measure the pressing force such as when the proficiency level of the worker is high. Alternatively, the length adjusting device 40 may have a simple configuration in which the measuring unit 48 and the display unit 59 are not provided.

  Then, the use procedure of the length adjustment instrument 40 is demonstrated using FIG. 11 and FIG. FIG. 11 is a view showing a state in which the inner deck board 22 is removed and the length adjusting device 40 is attached to the flexible rail 23. 12A is a view showing a state in which the T-shaped joint 52 of the length adjusting device 40 is inserted into the C-shaped groove 23a of the flexible rail 23, and FIG. It is a figure which shows the state which rotated the mold joint 52 90 degrees, and couple | bonded the C-shaped groove 23a and the T-shaped joint 52. FIG.

  First, the inner deck board 22 located above the pressing position Q (see FIG. 2) of the flexible rail 23 is removed, and the connecting bar 44 and the vertical bar 45 are inserted into the truss P from the gap between the balustrade panel 20 and the skirt guard 21. The holding groove 54a of the support shaft plate 54 is inserted into the angle AG and fixed. Then, as shown in FIG. 12A, the T-shaped joint 52 attached to the lower end of the vertical bar 45 is inserted into the C-shaped groove 23a of the flexible rail 23 and fixed from the through hole 52d of the T-shaped joint 52. The pin 49 is pulled out, and the T-shaped joint 52 is rotated by 90 ° as shown in FIG. 12B so as to be engaged with the C-shaped groove 23a. Further, the fixing pin 49 is inserted and fixed in the through hole 52 e of the T-shaped joint 52.

  Next, the bolt 33 fixing the movable metal fitting 32 is loosened so that the flexible rail 23 is slidable. Then, while holding the gripping grip 56 of the length adjusting device 40 and holding the release lever 57 together, the operation lever 46 is repeatedly pushed up and down in a state where the fixing by the ratchet mechanism 60 is released. Thereby, it can be checked whether the flexible rail 23 is caught in the movable metal fitting 32 or another member, for example. Then, when the release lever 57 is released and the ratchet mechanism 60 is functioning, the operation lever 46 is pushed up until the display value of the display unit 59 reaches a predetermined value, for example, 200 N (Newton). Subsequently, the ratchet mechanism 60 is released by the release lever 57 and the operation lever 46 is pushed down so that the gap α between the moving handrail guide rail 14 and the flexible rail 23 is reduced by, for example, 10 mm.

  Finally, the loosened bolt 33 is tightened to fix the flexible rail 23 to the truss frame FL, the length adjusting device 40 is removed from the angle AG, and the inner deck board 22 is then attached to the flexible rail. 23 adjustment work is completed.

  According to the guide rail length adjusting device 40 for a moving handrail according to the present invention, the flexible rail 23 can be moved up and down by being pushed down or pushed up. For this reason, it is possible to adjust the overall length of the guide rail 14 for the moving handrail by depressing the flexible rail 23 by a predetermined amount after confirming whether the flexible rail 23 operates smoothly when moved up and down. it can. As a result, the length of the moving handrail guide rail 14 can be adjusted with high accuracy. Moreover, according to the length adjusting device 40, the length adjustment of the guide rail 14 for movable handrails can be performed by one worker.

  In addition, according to the length adjustment instrument 40 of the guide rail for moving handrails according to the present invention, it is not limited to the configuration of the above-described embodiment and its modifications, and is described in the claims of the present application. It goes without saying that various improvements and modifications can be made within the equivalent range.

  10 escalators, 14 guide rails for moving handrails, 23 flexible rails, 23a C-shaped grooves, 40 length adjusting instruments, 42 push-down bars, 44 connecting bars, 45 vertical bars, 46 operation levers, 48 measuring units, 52 T Die joint, 54 support shaft plate, 54a holding groove, 59 display section, D rotation direction, Q pressing position.

Claims (3)

A length that adjusts the total length of the guide rail for moving handrails by forming a part of the return rail side of the guide rail for moving handrails and pressing a flexible rail provided with a C-shaped groove for attachment to the escalator body in the vertical direction Adjusting device,
The length adjusting device includes a pressing bar whose middle part is pivotally supported by the escalator body, whose lower end part is capable of pressing the flexible rail, and whose upper end part is used as an operation lever.
A T-joint that engages with the C-shaped groove by rotating a predetermined angle around the longitudinal axis of the pressing bar is provided at the lower end of the pressing bar.
A tool for adjusting the length of a guide rail for a handrail that can push down or push up a flexible rail by the vertical movement of a push-down bar by engaging a T-shaped joint and a C-shaped groove. In the length adjustment tool of the guide rail for movable handrails according to claim 1,
In order to pivotally support the intermediate part of the push bar to the escalator body, a support shaft plate is rotatably supported on the push bar, and a groove provided in the support shaft plate is engaged with an angle fixed to the escalator body. A length adjusting device for a guide rail for a moving handrail, characterized in that it forms a holding portion of a push bar. In the length adjustment tool of the guide rail for movable handrails according to claim 1 or 2,
A measuring unit for measuring the pressing force of the pressing bar;
A display unit for displaying a measurement value of the measurement unit;
A guide for adjusting the length of a guide rail for a moving handrail, further comprising:

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