Passenger conveyor

Abstract

The invention provides a passenger conveyor which can easily confirm whether comb teeth are damaged or not. An escalator (100) is provided with: steps (12) that move circularly; the lifting plates (30) are arranged at the two ends of the moving path of the stairs (12); the comb plate (40) is arranged at the end part of the step (12) side of the lifting plate (30), a plurality of grooves (12a) are formed in the upper surface of the step (12), and the comb plate (40) is provided with a plate-shaped comb plate main body (41) which is fixed on the lifting plate (30); and a plurality of comb teeth (42) protruding from the comb plate main body (41), the plurality of comb teeth (42) are respectively inserted into corresponding grooves (12a) among the plurality of grooves (12a), the escalator (100) is further provided with a light source (50) arranged below the lifting plate (30) or below the comb plate main body (41), and the light source (50) is configured to irradiate light to the plurality of comb teeth (42).

Description

Technical Field

[0001] This disclosure relates to a passenger conveyor equipped with a comb plate. Background Technology

[0002] Patent Document 1 describes a combing device for a passenger conveyor. This combing device has a combing plate and combing components. The combing plate is disposed at the boarding / alighting opening. The combing components have a fixing portion fixed to the combing plate and multiple combing teeth protruding from the fixing portion.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2022-165090 Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] When inspecting the passenger conveyor, the comb teeth are visually checked for damage. However, the visual recognition of comb teeth is not always high, making it difficult to reliably confirm the damage of all comb teeth in a short period of time.

[0008] This disclosure was made to solve the problems mentioned above, and its purpose is to provide a passenger conveyor that allows for easy confirmation of whether the comb teeth are damaged.

[0009] means for solving problems

[0010] The passenger conveyor disclosed herein comprises: steps that move in a circular manner; a boarding platform disposed at both ends of the movement path of the steps; and a comb plate disposed at the end of the boarding platform on the step side, wherein a plurality of grooves are formed on the upper surface of the steps, the comb plate having: a plate-shaped comb plate body fixed to the boarding platform; and a plurality of comb teeth protruding from the comb plate body, the plurality of comb teeth being respectively inserted into corresponding grooves in the plurality of grooves, the passenger conveyor further comprising a light source disposed below the boarding platform or below the comb plate body, the light source being configured to irradiate light onto the plurality of comb teeth.

[0011] Invention Effects

[0012] According to this disclosure, it is easy to confirm whether the comb teeth are damaged. Attached Figure Description

[0013] Figure 1 This is a side view schematically showing the structure of the passenger conveyor of Embodiment 1.

[0014] Figure 2 This is a top view showing the structure of the passenger boarding and alighting port on the upper side of the passenger conveyor in Embodiment 1.

[0015] Figure 3 This is a top view showing an enlarged portion of the comb plate and steps of the passenger conveyor in Embodiment 1.

[0016] Figure 4 It means Figure 3 A sectional view of section IV-IV.

[0017] Figure 5 This is a diagram showing the state in which a comb tooth is missing due to damage in the passenger conveyor of Embodiment 1.

[0018] Label Explanation

[0019] 11: Truss; 12: Step; 12a: Groove; 12b: Anti-slip strip; 13: Step chain; 14: Drive unit; 15: Upper sprocket; 16: Drive chain; 17: Braking device; 18: Braking device for drive chain breakage; 19: Lower sprocket; 20: Handrail; 22: Handrail; 30: Passenger platform; 40: Comb plate; 41: Comb plate body; 42, 42-1: Comb teeth; 50: Light source; 100: Escalator (passenger conveyor). Detailed Implementation

[0020] Implementation method 1.

[0021] The passenger conveyor of Embodiment 1 will be described. Figure 1 This is a side view schematically illustrating the structure of the passenger conveyor according to this embodiment. In this embodiment, an escalator 100 is exemplified as a passenger conveyor.

[0022] like Figure 1 As shown, the escalator 100 has a truss 11 erected between the upper floor and the lower floor. Multiple steps 12 are supported on the truss 11. A pair of annular step chains 13 are arranged on both sides of the multiple steps 12 in the width direction. The multiple steps 12 are connected in a ring shape by the pair of step chains 13.

[0023] A drive unit 14, a pair of upper sprockets 15, a drive chain 16, a braking device 17, and a braking device 18 for use in case of drive chain breakage are provided at the upper end of the truss 11. The drive unit 14 is equipped with a motor that drives the escalator 100. The pair of upper sprockets 15 are configured to rotate by the driving force of the drive unit 14. The drive chain 16 is configured to transmit the driving force of the drive unit 14 to the upper sprockets 15.

[0024] Braking device 17 is configured to brake drive device 14. Braking device 18 is configured to prevent rotation of upper sprocket 15 when drive chain 16 breaks.

[0025] A pair of lower sprockets 19 are provided at the lower end of the truss 11. A ladder chain 13 is wound between a pair of upper sprockets 15 and a pair of lower sprockets 19.

[0026] Above the truss 11, there is a pair of railings 20 facing each other, spaced apart by multiple steps 12. Around the periphery of the pair of railings 20, there is a pair of annular handrails 22 that move together with the multiple steps 12.

[0027] The driving force of the drive unit 14 is transmitted to multiple steps 12 via the upper sprocket 15 and the step chain 13. The multiple steps 12 move cyclically by the driving force of the drive unit 14.

[0028] The movement path of the multiple steps 12 includes an outbound path, an upper-level reversing section, a return path, and a lower-level reversing section. The outbound path is the path through which passengers are transported by the steps 12. The return path is the path through which the steps 12 move in the opposite direction to the outbound path. The upper-level reversing section is located between one end of the outbound path and one end of the return path. The lower-level reversing section is located between the other end of the outbound path and the other end of the return path. In the upper-level and lower-level reversing sections, the movement direction of the steps 12 is reversed. At both ends of the movement path of the steps 12, specifically at both ends of the outbound path, there are boarding and alighting points.

[0029] Figure 2 This is a top view showing the structure of the passenger boarding and alighting port on the upper side of the passenger conveyor in this embodiment. Figure 2 The up and down directions indicate the direction of movement of step 12. Figure 2 The left and right directions indicate the width direction of step 12.

[0030] like Figure 2 As shown, a boarding / alighting platform 30 is fixedly installed at the boarding / alighting entrance. The boarding / alighting platform 30 is arranged approximately horizontally. A comb plate 40 is provided at the end of the boarding / alighting platform 30 on the side of the step 12. The boarding / alighting entrance on the lower floor side has the same structure as the boarding / alighting entrance on the upper floor side.

[0031] Figure 3 This is a top view showing an enlarged portion of the comb plate and steps of the passenger conveyor in this embodiment.

[0032] Figure 3 The up and down directions indicate the direction of movement of step 12. Figure 3 The left and right directions indicate the width direction of step 12.

[0033] Figure 4 It means Figure 3 A sectional view of section IV-IV.

[0034] like Figure 3 and Figure 4As shown, a plurality of grooves 12a are formed on the upper surface of the step 12. Each groove 12a extends along the moving direction of the step 12. The extending direction of each groove 12a is perpendicular to the width direction of the step 12. Each groove 12a has the same cross-sectional shape having a bottom surface and a pair of sidewalls. An anti-slip strip 12b with a convex cross-section is formed between two adjacent grooves 12a.

[0035] The comb plate 40 has a comb plate body 41 and a plurality of comb teeth 42. The comb plate body 41 has a plate-like shape and is fixed to the landing plate 30. Each comb tooth 42 protrudes from the comb plate body 41 along the moving direction of the ladder 12. Each comb tooth 42 is inserted into a corresponding slot 12a in a plurality of slots 12a.

[0036] A light source 50 is provided below the passenger / step plate 30. The light source 50 is fixed to the lower surface of the passenger / step plate 30. The light source 50 is positioned so as not to interfere with the movement of the steps 12. The light source 50 may also be provided below the comb plate body 41.

[0037] The light source 50 is configured to illuminate multiple comb teeth 42. Figure 4 In the diagram, a dashed arrow indicates an example of the direction of light from light source 50. The direction of light from light source 50 is preferably downwards than the horizontal direction.

[0038] In this embodiment, the light source 50 is lit when the operating mode of the escalator 100 is set to maintenance mode, and is turned off when the operating mode of the escalator 100 is set to a mode other than maintenance mode.

[0039] The light source 50 in this embodiment is a linear light source extending in a straight line along the width direction of the step 12. The linear light source is constructed, for example, by arranging a plurality of point light sources in a straight line. The width of the light source 50 in the width direction of the step 12 is wider than the distance between the comb teeth 42 located at both ends of the step 12 in the width direction of the step 12. Therefore, the light source 50 can illuminate all the comb teeth 42 with light in the direction extending along the groove 12a when viewed from above.

[0040] Next, the method for checking whether the comb teeth 42 are damaged in the passenger conveyor of this embodiment will be described. Figure 5 This diagram illustrates the state where a comb tooth in the passenger conveyor of this embodiment is missing due to damage. Figure 5 In the diagram, a double-dotted line represents a comb tooth 42-1 that is missing due to damage among multiple comb teeth 42.

[0041] When the maintenance operator sets the operating mode of the escalator 100 to maintenance mode, the light source 50 is turned on. Light then shines from the light source 50 toward the multiple comb teeth 42.

[0042] A portion of the light emanating from the light source 50 is blocked by each of the comb teeth 42. A portion of the remaining light leaks out to the outside of the comb plate 40 through the gap between the comb teeth 42 and the grooves 12a along the grooves 12a.

[0043] When the comb teeth 42-1 are damaged, less light is blocked by them. Therefore, the amount of light leaking from the comb teeth 42-1 is greater than from the undamaged comb teeth 42-1. Consequently, the bottom and sidewall surfaces of the grooves 12a corresponding to the comb teeth 42-1, located outside the comb plate 40, are illuminated brighter by the leaked light than other grooves 12a. Figure 5 In the image, dotted shading is used to represent examples of areas in slot 12a corresponding to comb teeth 42-1 that are illuminated by leaked light and are brighter than other slots 12a.

[0044] Maintenance workers can identify damage to the comb teeth 42-1 by observing the differences in brightness among the multiple slots 12a caused by varying light leakage. Therefore, according to this embodiment, it is possible to easily visually confirm whether each comb tooth 42 is damaged.

[0045] As described above, the escalator 100 of this embodiment includes steps 12, a platform 30, and a comb plate 40. The steps 12 are configured to move in a circular motion. The platform 30 is provided at both ends of the movement path of the steps 12. The comb plate 40 is provided at the end of the platform 30 on the side of the steps 12. Here, the escalator 100 is an example of a passenger conveyor.

[0046] Multiple grooves 12a are formed on the upper surface of the step 12. The comb plate 40 has a plate-shaped comb plate body 41 and multiple comb teeth 42. The comb plate body 41 is fixed to the boarding and alighting plate 30. The multiple comb teeth 42 protrude from the comb plate body 41 respectively. The multiple comb teeth 42 are respectively inserted into the corresponding grooves 12a in the multiple grooves 12a.

[0047] The escalator 100 also includes a light source 50. The light source 50 is located below the passenger platform 30 or below the comb plate body 41. The light source 50 is configured to irradiate light toward the multiple comb teeth 42.

[0048] According to this structure, the amount of light leakage into each groove 12a can be different depending on whether each comb tooth 42 is damaged. Therefore, it is easy for maintenance workers to visually confirm whether the comb tooth 42 is damaged.

[0049] In the escalator 100 of this embodiment, the light source 50 is a linear light source extending along the width direction of the step 12.

[0050] According to this structure, light can be irradiated onto multiple comb teeth 42 in a direction extending along the groove 12a when viewed from above. Therefore, regardless of which comb tooth 42 is damaged, the area of ​​groove 12a irradiated by the leaked light is the same in the extending direction of groove 12a. Thus, regardless of which comb tooth 42 is damaged, the damage to the comb tooth 42 can be easily detected by the maintenance operator's visual inspection.

[0051] In the above embodiment, the escalator 100 is used as an example of a passenger conveyor, but the passenger conveyor can also be an moving walkway.

Claims

1. A passenger conveyor, comprising: Steps, which move in a cyclical manner; Passenger ramps, which are disposed at both ends of the movement path of the steps; and A comb-tooth plate, which is disposed at the end of the step side of the boarding and alighting plate. Multiple grooves are formed on the upper surface of the ladder steps. The comb plate has: a plate-shaped comb plate body fixed to the boarding and alighting plate; and a plurality of comb teeth protruding from the comb plate body. The multiple comb teeth are respectively inserted into the corresponding slots in the multiple grooves. The passenger conveyor also includes a light source located below the boarding platform or below the comb plate body. The light source is configured to illuminate the plurality of comb teeth.

2. The passenger conveyor according to claim 1, wherein, The light source is a linear light source extending along the width direction of the ladder.

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