Manufacturing method and manufacturing tool for belt roller device for man conveyor

Abstract

To provide a manufacturing method for a belt roller device for a man conveyor, which allows a shaft body to be fixed to the device body of the belt roller device using a press machine.SOLUTION: In a manufacturing method for a belt roller device of a man conveyor, a manufacturing tool includes a lower tool attached to a bolster and an upper tool attached to a slide. The lower tool includes a lower tapered portion having a diameter increasing downward. The manufacturing method includes a supporting step to support the lower cylindrical portion from below with the lower tapered portion while the lower cylindrical portion protrudes downward from a lower plate hole, and a pressing step to move the upper tool downward with respect to the lower tool by a press machine so that the upper tool presses the shaft body downward to crimp the lower cylindrical portion to the lower tapered portion.SELECTED DRAWING: Figure 10

Description

[Technical field]

[0001] The present disclosure relates to a method and apparatus for manufacturing a belt roller arrangement for a people conveyor. [Background technology]

[0002] Conventionally, for example, a passenger conveyor is equipped with an endless circular handrail belt that rotates and a belt roller device having rollers that rotate in contact with the handrail belt (for example, Patent Documents 1 to 4). For example, examples of belt roller devices include a belt guide device that guides the handrail belt (for example, Patent Document 1), a belt drive device that applies drive to the handrail belt (for example, Patent Documents 2 and 3), and a belt tension device that applies tension to the handrail belt (for example, Patent Document 4). However, there is a demand for manufacturing belt roller devices using a press machine. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-137138 A [Patent Document 2] JP 2021-187629 A [Patent Document 3] JP 2020-97458 A [Patent Document 4] JP 2017-159974 A Summary of the Invention [Problem to be solved by the invention]

[0004] Therefore, an object of the present invention is to provide a manufacturing method and tool for a belt roller device of a passenger conveyor that can fix a shaft body to the device body of the belt roller device using a press machine. [Means for solving the problem]

[0005] The manufacturing method of the belt roller device of the passenger conveyor is as follows: A manufacturing method for manufacturing a belt roller device having a roller that contacts a handrail belt of a passenger conveyor using a press machine and a manufacturing tool, comprising: The belt roller device is With Laura, A shaft body extending in a vertical direction and inserted into the roller; a device body having an upper plate and a lower plate that sandwich the roller in the vertical direction, The upper plate has an upper plate hole into which the shaft is inserted, The lower plate has a lower plate hole into which the shaft is inserted, The shaft body includes a lower cylindrical portion formed into a cylindrical shape at a lower end portion, The press machine is Bolster and a slide that is disposed above the bolster and moves in the up-down direction relative to the bolster, The manufacturing tool comprises: A lower tool attached to the bolster; an upper tool attached to the slide; The lower tool has a lower tapered portion whose diameter increases downward, The manufacturing method includes: a supporting step of supporting the lower tubular portion from below with the lower tapered portion in a state in which the lower tubular portion protrudes downward from the lower plate hole; and a pressing step of moving the upper tool downward relative to the lower tool by the press machine so that the upper tool presses the shaft downward, thereby crimping the lower cylindrical portion into the lower tapered portion.

[0006] The manufacturing method of the belt roller device of the passenger conveyor is as follows: A manufacturing method for manufacturing a belt roller device having a roller that contacts a handrail belt of a passenger conveyor using a press machine and a manufacturing tool, comprising: The belt roller device is With Laura, A shaft body extending in a vertical direction and inserted into the roller; a device body having an upper plate and a lower plate that sandwich the roller in the vertical direction, The upper plate has an upper plate hole into which the shaft is inserted, The lower plate has a lower plate hole into which the shaft is inserted, The shaft body has an upper cylindrical portion formed into a cylindrical shape at an upper end portion, The press machine is Bolster and a slide that is disposed above the bolster and moves in the up-down direction relative to the bolster, The manufacturing tool comprises: A lower tool attached to the bolster; an upper tool attached to the slide; The upper tool has an upper tapered portion whose diameter increases upward, The manufacturing method includes: a supporting step of supporting a lower end of the shaft body from below with the lower tool in a state in which the upper cylindrical portion protrudes upward from the upper plate hole; and a pressing process in which the upper tool is moved downward relative to the lower tool by the press machine so that the upper tapered portion presses the upper cylindrical portion downward, thereby crimping the upper cylindrical portion to the upper tapered portion.

[0007] The manufacturing tool is used in the manufacturing method of the belt roller device of the passenger conveyor. [Brief description of the drawings]

[0008] [Figure 1] Schematic diagram of a passenger conveyor using a belt roller device according to an embodiment. [Diagram 2] FIG. 3 is a front view of the belt roller device according to the embodiment; [Diagram 3] FIG. 2 is a rear view of the belt roller device according to the embodiment; [Figure 4] Cross-sectional view of line IV-IV in Figure 2 [Diagram 5] FIG. 1 is a front view of the device body according to the embodiment; [Figure 6]FIG. 2 is an exploded view showing a cross section of a component part of the belt roller device according to the embodiment; [Figure 7] 1A is a front view of a shaft body according to the embodiment, and FIG. 1C is a rear view of the shaft body according to the embodiment. [Figure 8] FIG. 1 is a front view showing a partial cross section of a manufacturing apparatus according to an embodiment. [Figure 9] FIG. 13 is a front view, partially in section, illustrating a manufacturing method using the manufacturing apparatus, showing a supporting step. [Figure 10] FIG. 13 is a front view, partially in section, illustrating a pressing step in the manufacturing method using the manufacturing apparatus; [Figure 11] FIG. 13 is a front view, partially in section, illustrating the manufacturing method using the manufacturing apparatus, showing the state after each process is completed. [Figure 12] FIG. 13 is a front view, partially in section, illustrating another manufacturing method using the same manufacturing apparatus. [Figure 13] FIG. 13 is a front view, partially in section, illustrating another manufacturing method using the manufacturing apparatus, showing a pressing step. [Figure 14] FIG. 13 is a front view, partially in section, illustrating a supporting step in a method for manufacturing another belt roller device using another manufacturing apparatus; [Figure 15] FIG. 13 is a front view, partially in section, illustrating a pressing step in a method for manufacturing another belt roller device using the manufacturing apparatus; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] In each drawing, the dimensions of the components may be enlarged or reduced relative to the actual dimensions in order to facilitate understanding, and the dimensional ratios between the drawings may not be consistent. Note that in each drawing, some of the components may be omitted in order to facilitate understanding.

[0010] Terms including ordinal numbers such as first, second, etc. are used to describe various components, but these terms are used only for the purpose of distinguishing one component from another, and the components are not particularly limited by these terms. The number of components including ordinal numbers is not particularly limited, and may be, for example, one. In addition, the ordinal numbers used in the following specification and drawings may differ from the ordinal numbers described in the claims.

[0011] First, before describing the configuration of the belt roller device, a passenger conveyor in which the belt roller device is used will be described with reference to Fig. 1. Note that the following embodiment is provided as an example to aid in understanding the configuration of the passenger conveyor, and does not limit the configuration of the passenger conveyor.

[0012] As shown in Figure 1, a person conveyor 1 may include, for example, a structure 2 installed on a main body, a transport section 3 for transporting people (passengers), a pair of balustrade sections 4 (only one is shown in Figure 1) arranged to sandwich the transport section 3 in a first direction D1, a drive section 5 for driving the transport section 3 and the balustrade section 4, and a processing section 6 for controlling the entire device.

[0013] In Figure 1 (as well as Figures 2 to 7), the first direction D1 is the width direction D1 which is parallel to the horizontal direction, the second direction D2 is the front-to-back direction D2 which is parallel to the horizontal direction and perpendicular to the width direction D1, and the third direction D3 is the vertical direction which is perpendicular to the width direction D1 and the front-to-back direction D2, and is the up-down direction D3.

[0014] The passenger conveyor 1 according to this embodiment is an escalator with a stepped tread surface for transporting passengers, but is not limited to such a configuration. For example, the passenger conveyor 1 may be a moving walkway with a flat tread surface for transporting passengers.

[0015] The transport unit 3 may include, for example, as in this embodiment, an endless annular running unit 3a that rotates and runs when driven by the drive unit 5, and a plurality of steps 3b that are connected to the running unit 3a and run together with the running unit 3a, and have tread surfaces on which people can stand. Although not particularly limited, the running unit 3a may be, for example, a roller chain.

[0016] Also, for example, the running portions 3a may be provided as a pair separated in the width direction D1, and the steps 3b may be disposed between the pair of running portions 3a, 3a. The steps 3b may be connected to the respective running portions 3a so as to be rotatable about the axis in the width direction D1.

[0017] The driving unit 5 may include, for example, as in this embodiment, a driving wheel 5a around which a first end of the traveling unit 3a in the front-rear direction D2 is wrapped and which rotates about an axis in the width direction D1, a traveling support unit 5b that supports a second end of the traveling unit 3a in the front-rear direction D2, a driving source 5c that rotates the driving wheel 5a, and a transmission unit 5d that transmits the driving force of the driving source 5c to the driving wheel 5a. As a result, the step 3b is reversed by the driving wheel 5a and also reversed by the traveling support unit 5b.

[0018] Although not particularly limited, the driving wheel 5a may be, for example, a sprocket. Although not particularly limited, the running support part 5b may be, for example, a guide material that guides the running part 3a to turn in the opposite direction, or may be, for example, a rotating material (for example, a sprocket) around which the running part 3a is wound and which rotates about an axis in the width direction D1. Although not particularly limited, the driving source 5c may be, for example, a motor. Although not particularly limited, the transmission part 5d may be, for example, a belt or a chain.

[0019] The balustrade portion 4 may include, for example, an endless circular handrail belt 4a that rotates and runs, a belt support portion 4b that supports the handrail belt 4a, a balustrade main body portion 4c that supports the belt support portion 4b, a cover portion 4d that covers the lower portion of the balustrade main body portion 4c, and first to third belt roller devices 10, 4e, 4f having rollers that contact the handrail belt 4a.

[0020] The first to third belt roller devices 10, 4e, and 4f are not particularly limited. The first belt roller device 10 may be, for example, a belt guide device 10 that guides the handrail belt 4a as in this embodiment. The second belt roller device 4e may be, for example, a belt drive device 4e that applies drive to the handrail belt 4a as in this embodiment. The third belt roller device 4f may be, for example, a belt tension device 4f that applies tension to the handrail belt 4a as in this embodiment.

[0021] Next, one embodiment of the first belt roller device 10 will be described with reference to Figures 2 to 7. Note that the following embodiment is provided as an example to aid in understanding the configuration of the first belt roller device 10, and is not intended to limit the configuration of the first belt roller device 10.

[0022] 2 to 7, first belt roller device 10 (hereinafter also simply referred to as "belt roller device") may include, for example, an annular roller 11, a shaft 12 extending in width direction D1 and inserted into roller 11, a bearing 13 rotatably connecting roller 11 and shaft 12, and a device body 14 to which shaft 12 is fixed. Note that directions D1 to D3 in Figs. 2 to 7 indicate directions D1 to D3 in first belt roller device 10 located on the leftmost side of the three first belt roller devices 10 shown in Fig. 1.

[0023] The device body 14 may include, for example, a first side plate 14a and a second side plate 14b that sandwich the roller 11 in the width direction D1, and a bottom plate 14c that connects the first side plate 14a and the second side plate 14b, as in this embodiment. The first side plate 14a may include, for example, a first plate hole 14d into which the shaft body 12 is inserted, as in this embodiment. The second side plate 14b may include, for example, a second plate hole 14e into which the shaft body 12 is inserted, as in this embodiment.

[0024] The bearing 13 may be configured, for example, as in this embodiment, to be formed in an annular shape, with its outer periphery fixed to the inner periphery of the roller 11, and its inner periphery fixed to the outer periphery of the shaft body 12. Although not particularly limited, the bearing 13 may be, for example, a bearing as in this embodiment, or may be, for example, a bushing.

[0025] Furthermore, the belt roller device 10 may include, for example, a bearing stopper 15 that fixes the bearing 13 to the roller 11 in the width direction D1, and spacers 16, 16 arranged between the bearing 13 and the side plates 14a, 14b, as in this embodiment. Note that each of the bearing stopper 15 and the spacers 16, 16 may be formed in an annular shape and inserted into the shaft body 12, as in this embodiment.

[0026] Shaft body 12 may, for example, as in this embodiment, include shaft main body portion 17 extending in width direction D1, a first cylindrical portion 18 cylindrically protruding in width direction D1 from a first end face 17a of shaft main body portion 17, and a second cylindrical portion 19 cylindrically protruding in width direction D1 from a second end face 17b of shaft main body portion 17. Although not particularly limited, as in this embodiment, first end face 17a may be flat over its entirety, and second end face 17b may include a flat first plane 17c and a flat second plane 17d that is stepped from first plane 17c.

[0027] The first cylindrical portion 18 may protrude from the first plate hole 14d of the first side plate 14a, as in this embodiment. The first cylindrical portion 18 may have a crimped portion 18a at an end, which is crimped to be wider than the first plate hole 14d so that the first cylindrical portion 18 is abutted against the first side plate 14a in the width direction D1. The shaft body 12 shown in FIG. 7 is the shaft body 12 before crimping, and does not have the crimped portion 18a. The first cylindrical portion 18 may be formed, for example, in an endless ring shape (an endless circular ring shape in this embodiment).

[0028] The second cylindrical portion 19 may protrude from the second plate hole 14e of the second side plate 14b, for example, as in this embodiment. The second cylindrical portion 19 may have a crimped portion 19a at an end thereof that is crimped to be wider than the second plate hole 14e so as to be abutted against the second side plate 14b in the width direction D1. The shaft 12 shown in Fig. 7 does not have the crimped portion 19a because it is the shaft 12 before crimping.

[0029] And, for example, as in this embodiment, the second side plate 14b may include an abutment portion 14f that abuts against the second end face 17b (in this embodiment, the second plane 17d) of the shaft body portion 17 in the width direction D1. As a result, the abutment portion 14f and the crimping portion 19a sandwich the second side plate 14b in the width direction D1.

[0030] Furthermore, as in the present embodiment, for example, the shaft body 12 may include a rotation stopper 12b that is abutted against and stopped by the abutment portion 14f in the circumferential direction of the shaft body 12. As a result, the rotation stopper 12b of the shaft body 12 is abutted against and stopped in the circumferential direction by the abutment portion 14f, so that the shaft body 12 can be prevented from rotating in the circumferential direction relative to the device main body 14.

[0031] Although not particularly limited, the rotation stopper 12b may be formed, for example, as in this embodiment, by cutting out an end of the shaft main body 17 and a part of the second cylindrical portion 19. As a result, the second cylindrical portion 19 is formed in an annular shape (arc-shaped in this embodiment) with ends. That is, a part of the rotation stopper 12b is configured by the circumferential end of the second cylindrical portion 19.

[0032] Next, the manufacturing apparatus according to this embodiment will be described with reference to Fig. 8. Note that the following configuration is provided as an example to aid in understanding the configuration of the manufacturing apparatus, and is not intended to limit the configuration of the manufacturing apparatus.

[0033] As shown in Fig. 8, the manufacturing device may include, for example, a press machine 20 and a manufacturing tool 30 that is detachable from the press machine 20. In Fig. 8 (as well as Figs. 9 to 13), the first direction D4 is a first lateral direction D4 that is parallel to the horizontal direction, the second direction D5 is a second lateral direction D5 that is parallel to the horizontal direction and perpendicular to the first lateral direction D4, and the third direction D6 is a vertical direction that is perpendicular to the first lateral direction D4 and the second lateral direction D5, that is, the up-down direction D6.

[0034] The press machine 20 may include, for example, a bolster 21 having a flat upper surface, and a slide 22 that is disposed above the bolster 21 and moves in the vertical direction D6 relative to the bolster 21. Although not particularly limited, the press machine 20 may be, for example, an electric press machine, a hydraulic press machine, or a manual press machine (a man-powered press machine).

[0035] The bolster 21 may have a bolster hole 21a recessed from the upper surface as in the present embodiment. The center of the bolster hole 21a may coincide with the center of the slide 22 when viewed in the up-down direction D6.

[0036] For example, the slide 22 may perform a reciprocating motion, moving from an upper limit position (the position shown in Figs. 9 and 11) to a lower limit position (the position shown in Fig. 10) and then returning to the upper limit position. Note that, for example, the upper limit position of the slide 22 may be arbitrarily changeable, and, for example, the lower limit position of the slide 22 may be arbitrarily changeable.

[0037] The manufacturing tool 30 may include, for example, a lower tool 31 attached to the bolster 21 and an upper tool 32 attached to the slide 22, as in this embodiment. The press 20 and the manufacturing tool 30 fix the shaft body 12 of the belt roller device 10 to the device body 14 by crimping the shaft body 12.

[0038] The lower tool 31 may include, for example, as in this embodiment, a base portion 31a placed on the bolster 21, a lower tapered portion 31b protruding upward from the fixed base portion 31a and having a diameter increasing downward, and an attachment portion 31c attached to the bolster 21. For example, as in this embodiment, the attachment portion 31c may protrude downward from the base portion 31a and be inserted into the bolster hole 21a.

[0039] In addition, the lower tool 31 may include, for example, as in this embodiment, a support portion 31d that is arranged above the base portion 31a and supports the device main body 14 from below, a guide portion 31e that guides the support portion 31d so that the support portion 31d moves in the vertical direction D6 relative to the base portion 31a, and an elastic portion 31f that applies an upward elastic restoring force to the support portion 31d.

[0040] As a result, the elastic portion 31f is elastically deformed, and the support portion 31d moves in the vertical direction D6 relative to the base portion 31a and the lower tapered portion 31b. The elastic portion 31f is not particularly limited, and may be, for example, a helical spring as in this embodiment, or may be, for example, a leaf spring or rubber. The support portion 31d may also have a support hole 31g that is inserted into the lower tapered portion 31b as in this embodiment.

[0041] The upper tool 32 may, for example, as in this embodiment, include an attachment portion 32a that is attached to the slide 22, and an upper tapered portion 32b that protrudes downward from the fixed attachment portion 32a and has a diameter that increases upward. Although not particularly limited, the upper tool 32 may, for example, be composed of a single part as in this embodiment.

[0042] Next, a method for manufacturing the belt roller device 10 using the manufacturing apparatus according to this embodiment will be described with reference to Figures 9 to 11. Note that the following method is provided as an example to aid in understanding the manufacturing method of the belt roller device 10, and is not intended to limit the manufacturing method of the belt roller device 10.

[0043] <Support process> First, a supporting step is performed. As shown in Fig. 9, the roller 11, the bearing 13, the plate holes 14d and 14e of the device body 14, the bearing stopper 15, and the spacer 16 are inserted into the shaft body 12. At this time, the device body 14 is placed on the support part 31d so that the width direction D1 of the belt roller device 10 in Figs. 2 to 7 is the up-down direction D6.

[0044] As a result, first end face 17a, first cylindrical portion 18, first side plate 14a, and first plate hole 14d of shaft main body 17 are also referred to as upper end face 17a, upper cylindrical portion 18, upper plate 14a, and upper plate hole 14d of shaft main body 17, respectively. In addition, second end face 17b, second cylindrical portion 19, second side plate 14b, and second plate hole 14e of shaft main body 17 are also referred to as lower end face 17b, lower cylindrical portion 19, lower plate 14b, and lower plate hole 14e of shaft main body 17, respectively.

[0045] Support portion 31d supports device body 14 from below, and lower tapered portion 31b supports lower cylindrical portion 19 from below. At this time, contact portion 14f of lower plate 14b abuts against lower end surface 17b (specifically, second plane 17d) of shaft body portion 17 from below, causing upper cylindrical portion 18 to protrude upward from upper plate hole 14d, and lower cylindrical portion 19 to protrude downward from lower plate hole 14e.

[0046] In this manner, the shaft body 12 is positioned in the up-down direction D6 with respect to the device body 14. Therefore, the length of the upper cylindrical portion 18 protruding upward from the upper plate hole 14d and the length of the lower cylindrical portion 19 protruding downward from the lower plate hole 14e are each appropriate lengths.

[0047] <Pressing process> Next, the pushing step is performed. As shown in Fig. 10, the slide 22 moves downward relative to the bolster 21, so that the upper tool 32 moves downward relative to the lower tool 31. Then, the upper tool 32 comes into contact with the shaft 12, so that the upper tapered portion 32b pushes the upper cylindrical portion 18 downward, and the lower cylindrical portion 19 is pushed downward toward the lower tapered portion 31b.

[0048] Meanwhile, the outer diameter (minimum outer diameter) of the lower end of the upper tapered portion 32b is smaller than the inner diameter of the upper cylindrical portion 18, and the outer diameter (maximum outer diameter) of the upper end of the upper tapered portion 32b is larger than the inner diameter of the upper cylindrical portion 18. In addition, the outer diameter (minimum outer diameter) of the upper end of the lower tapered portion 31b is smaller than the inner diameter of the lower cylindrical portion 19, and the outer diameter (maximum outer diameter) of the lower end of the lower tapered portion 31b is larger than the inner diameter of the lower cylindrical portion 19.

[0049] As a result, upper tapered portion 32b crimps upper cylindrical portion 18 to expand its diameter, and lower tapered portion 31b crimps lower cylindrical portion 19 to expand its diameter. Therefore, both upper cylindrical portion 18 and lower cylindrical portion 19 of shaft body 12 are crimped by a single pressing process. The lower end of upper tapered portion 32b is spaced upward from upper end surface 17a of shaft body 17, and the upper end of lower tapered portion 31b is spaced downward from lower end surface 17b of shaft body 17.

[0050] At this time, the lower cylindrical portion 19 is crimped to the lower tapered portion 31b, so that the device body 14 moves downward relative to the lower tapered portion 31b, and the upper cylindrical portion 18 is crimped to the upper tapered portion 32b, so that the upper tool 32 applies a downward force to the device body 14 via the upper cylindrical portion 18. As a result, the support portion 31d moves downward relative to the lower tapered portion 31b of the base portion 31a against the elastic restoring force of the elastic portion 31f.

[0051] Therefore, since the support portion 31d continues to support the device body 14 from below, the device body 14 can be supported by the support portion 31d both before and after the upper cylindrical portion 18 and the lower cylindrical portion 19 are crimped, and the lower cylindrical portion 19 can be supported by the lower tapered portion 31b. Therefore, the belt roller device 10 can be stably supported by the lower tool 31 both before and after the upper cylindrical portion 18 and the lower cylindrical portion 19 are crimped.

[0052] Thereafter, slide 22 moves upward relative to bolster 21, and therefore upper tool 32 moves upward relative to lower tool 31, as shown in Fig. 11. In this manner, each of cylindrical portions 18, 19 is crimped, thereby forming crimped portions 18a, 19a in each of cylindrical portions 18, 19. Note that within the range of the dot-dash line in Fig. 11, the dashed lines indicate the shapes of cylindrical portions 18, 19 before crimping, and the solid lines indicate the shapes of cylindrical portions 18, 19 after crimping.

[0053] As a result, both the upper and lower ends of the shaft 12 are fixed to the device body 14 by the crimping portions 18a, 19a, respectively. In this manner, the shaft 12 can be fixed to the device body 14 of the belt roller device 10 using the press machine 20, and the belt roller device 10 can be manufactured.

[0054] [1] From the above, the manufacturing method of the belt roller devices 10, 4e, 4f (in this embodiment, the first belt roller device 10) of the passenger conveyor 1 is as follows, as in this embodiment: A manufacturing method for manufacturing a belt roller device 10 having a roller 11 that contacts a handrail belt 4a of a passenger conveyor 1 using a press machine 20 and a manufacturing tool 30, The belt roller device 10 includes: Lola 11 and A shaft body 12 extending in the vertical direction D6 and inserted into the roller 11; a device body 14 having an upper plate 14a and a lower plate 14b that sandwich the roller 11 in the vertical direction D6, The upper plate 14a has an upper plate hole 14d into which the shaft body 12 is inserted, The lower plate 14b has a lower plate hole 14e into which the shaft body 12 is inserted. The shaft body 12 has a lower cylindrical portion 19 formed in a cylindrical shape at its lower end, The press machine 20 is Bolster 21 and a slide 22 that is disposed above the bolster 21 and moves in the up-down direction D6 relative to the bolster 21, The manufacturing tool 30 includes: A lower tool 31 attached to the bolster 21; an upper tool 32 attached to the slide 22; The lower tool 31 has a lower tapered portion 31b whose diameter increases downward. The manufacturing method includes: a supporting step of supporting the lower cylindrical portion 19 from below with the lower tapered portion 31b in a state in which the lower cylindrical portion 19 protrudes downward from the lower plate hole 14e; and a pressing process in which the upper tool 32 is moved downward relative to the lower tool 31 by the press machine 20 so that the lower cylindrical portion 19 is crimped to the lower tapered portion 31b by the upper tool 32 pressing the shaft body 12 downward. This method is preferred.

[0055] According to this method, with the lower cylindrical portion 19 protruding downward from the lower plate hole 14e, the lower tapered portion 31b supports the lower cylindrical portion 19 from below. Then, the upper tool 32 is moved downward relative to the lower tool 31 by the press machine 20, whereby the upper tool 32 presses the shaft 12 downward.

[0056] As a result, the lower cylindrical portion 19 is pressed downward toward the lower tapered portion 31b, which then crimps the lower cylindrical portion 19 to expand its diameter. Therefore, the lower end of the shaft 12 is fixed to the device body 14, and the press 20 can be used to fix the shaft 12 to the device body 14 of the belt roller device 10, 4e, 4f (in this embodiment, the first belt roller device 10).

[0057] [2] In the manufacturing method [1] above, as in this embodiment, The shaft body 12 further includes an upper cylindrical portion 18 formed into a cylindrical shape at an upper end thereof, The upper tool 32 has an upper tapered portion 32b whose diameter increases upward, The supporting step includes supporting the lower cylindrical portion 19 from below with the lower tapered portion 31b in a state in which the upper cylindrical portion 18 protrudes upward from the upper plate hole 14d, The pushing step is to move the upper tool 32 downward relative to the lower tool 31 so that the upper tapered portion 32b pushes the upper cylindrical portion 18 downward, thereby crimping the upper cylindrical portion 18 to the upper tapered portion 32b. This method is preferred.

[0058] According to this method, when the lower tapered portion 31b supports the lower cylindrical portion 19 from below, the upper cylindrical portion 18 protrudes upward from the upper plate hole 14d, and the lower cylindrical portion 19 protrudes downward from the lower plate hole 14e. Then, as the upper tool 32 moves downward relative to the lower tool 31, the upper tapered portion 32b presses the upper cylindrical portion 18 downward, and the lower cylindrical portion 19 is pressed downward toward the lower tapered portion 31b.

[0059] As a result, the upper tapered portion 32b crimps the upper cylindrical portion 18 so as to expand its diameter, and the lower tapered portion 31b crimps the lower cylindrical portion 19 so as to expand its diameter. Therefore, both the upper cylindrical portion 18 and the lower cylindrical portion 19 of the shaft 12 can be crimped by a single pressing step.

[0060] [3] In the manufacturing method [2] above, as in this embodiment, The shaft body 12 further includes a shaft body portion 17 having a lower end surface 17b. The lower cylindrical portion 19 protrudes downward from the lower end surface 17b. The lower plate 14b has an abutment portion 14f that abuts against the lower end surface 17b from below. This method is preferred.

[0061] According to this method, the abutment portion 14f of the lower plate 14b abuts against the lower end surface 17b of the shaft main body portion 17 from below, so that the shaft body 12 is positioned in the vertical direction D6 with respect to the device main body 14. This makes it possible to set the length of the lower cylindrical portion 19 protruding downward from the lower plate hole 14e and the length of the upper cylindrical portion 18 protruding upward from the upper plate hole 14d to appropriate lengths.

[0062] [4] In the manufacturing method [3] above, as in this embodiment, At least one of the lower end of the shaft main body 17 and the lower cylindrical portion 19 (in this embodiment, both the lower end of the shaft main body 17 and the lower cylindrical portion 19) is provided with a rotation stopper portion 12b that is stopped by the abutment portion 14f in the circumferential direction of the shaft 12. This method is preferred.

[0063] According to this method, the abutment portion 14f abuts against the rotation stopper portion 12b of the shaft body 12 in the circumferential direction of the shaft body 12. This makes it possible to prevent the shaft body 12 from rotating in the circumferential direction relative to the device body 14.

[0064] [5] In addition, in any one of the manufacturing methods [2] to [4] above, as in this embodiment, The lower tool 31 is a support portion 31d that is movable in the vertical direction D6 relative to the lower taper portion 31b and supports the device body 14 from below; and an elastic portion 31f that applies an upward elastic restoring force to the support portion 31d. This method is preferred.

[0065] According to this method, the lower tapered portion 31b supports the lower cylindrical portion 19 from below, and the support portion 31d supports the device body 14 from below. Then, as the lower cylindrical portion 19 is crimped to the lower tapered portion 31b, the device body 14 moves downward relative to the lower tapered portion 31b, and as the upper cylindrical portion 18 is crimped to the upper tapered portion 32b, the upper tool 32 applies a downward force to the device body 14 via the upper cylindrical portion 18.

[0066] As a result, the support portion 31d moves downward relative to the lower tapered portion 31b against the elastic restoring force of the elastic portion 31f, so that the support portion 31d continues to support the device body 14 from below. Therefore, both before and after the upper cylindrical portion 18 and the lower cylindrical portion 19 are crimped, not only can the lower tapered portion 31b support the lower cylindrical portion 19, but the device body 14 can also be supported by the support portion 31d.

[0067] [6] In addition, the manufacturing method of the belt roller devices 10, 4e, 4f (in this embodiment, the first belt roller device 10) of the passenger conveyor 1 is as follows, as in this embodiment: A manufacturing method for manufacturing a belt roller device 10 having a roller 11 that contacts a handrail belt 4a of a passenger conveyor 1 using a press machine 20 and a manufacturing tool 30, The belt roller device 10 includes: Lola 11 and A shaft body 12 extending in the vertical direction D6 and inserted into the roller 11; a device body 14 having an upper plate 14a and a lower plate 14b that sandwich the roller 11 in the vertical direction D6, The upper plate 14a has an upper plate hole 14d into which the shaft body 12 is inserted, The lower plate 14b has a lower plate hole 14e into which the shaft body 12 is inserted. The shaft body 12 has an upper cylindrical portion 18 formed into a cylindrical shape at its upper end, The press machine 20 is Bolster 21 and a slide 22 that is disposed above the bolster 21 and moves in the up-down direction D6 relative to the bolster 21, The manufacturing tool 30 includes: A lower tool 31 attached to the bolster 21; an upper tool 32 attached to the slide 22; The upper tool 32 has an upper tapered portion 32b whose diameter increases upward, The manufacturing method includes: a supporting step of supporting the lower end of the shaft body 12 from below with the lower tool 31 in a state in which the upper cylindrical portion 18 protrudes upward from the upper plate hole 14d; a pressing step of moving the upper tool 32 downward relative to the lower tool 31 by the press machine 20 so that the upper tapered portion 32b presses the upper cylindrical portion 18 downward, thereby crimping the upper cylindrical portion 18 to the upper tapered portion 32b. This method is preferred.

[0068] According to this method, with the upper cylindrical portion 18 protruding upward from the upper plate hole 14d, the support portion 31d supports the lower end portion of the shaft body 12 from below. Then, the upper tool 32 is moved downward relative to the lower tool 31 by the press machine 20, whereby the upper tapered portion 32b presses the upper cylindrical portion 18 downward.

[0069] As a result, the upper tapered portion 32b crimps the upper cylindrical portion 18 to expand its diameter, and the upper end of the shaft body 12 is fixed to the device body 14. Therefore, the press machine 20 can be used to fix the shaft body 12 to the device body 14 of the belt roller device 10, 4e, 4f (in this embodiment, the first belt roller device 10).

[0070] [7] In addition, the manufacturing tool 30, as in this embodiment, A manufacturing method for the belt roller device 10, 4e, 4f (in this embodiment, the first belt roller device 10) of the passenger conveyor 1 according to any one of the above [1] to [6], This configuration is preferred.

[0071] According to such a configuration, the press 20 can be used to fix the shaft 12 to the device body 14 of the belt roller device 10, 4e, 4f (in this embodiment, the first belt roller device 10).

[0072] The passenger conveyor 1, the manufacturing device, and the manufacturing method are not limited to the configuration of the above-mentioned embodiment, and are not limited to the above-mentioned action and effect. Of course, the passenger conveyor 1, the manufacturing device, and the manufacturing method can be modified in various ways without departing from the gist of the present invention. For example, it is of course possible to arbitrarily select one or more of the configurations and methods related to the various modified examples described below and adopt them in the configurations and methods related to the above-mentioned embodiment.

[0073] (A) In the manufacturing apparatus and manufacturing method according to the above embodiment, the object to be manufactured is the belt guide device 10 (first belt roller device 10). However, the manufacturing apparatus and manufacturing method are not limited to this configuration.

[0074] For example, the manufacturing object may be a belt drive device (second belt roller device) 4e. Also, for example, the manufacturing object may be a belt tension device (third belt roller device) 4f. In short, the manufacturing object may be a belt roller device having a roller that contacts the handrail belt 4a of the passenger conveyor 1.

[0075] (B) In the manufacturing apparatus and manufacturing method according to the above embodiment, the supporting step is followed by the pressing step. However, the manufacturing apparatus and manufacturing method are not limited to this method. For example, as shown in Figs. 12 and 13, the supporting step and the pressing step may be performed in parallel.

[0076] The manufacturing method according to FIGS. 12 and 13 will be described below.

[0077] 12 and 13, the pushing step also includes inserting the shaft body 12 into the bearing 13. Therefore, as shown in Fig. 12, first, the lower end portion (lower cylindrical portion 19) of the shaft body 12 is positioned at the upper end portion of the bearing 13. Then, from this state, the pushing step is performed.

[0078] First, slide 22 (see FIG. 13) moves downward relative to bolster 21, causing upper tool 32 to move downward relative to lower tool 31. Then, upper tool 32 comes into contact with shaft 12, causing shaft 12 to move downward and be inserted into bearing 13, after which lower cylindrical portion 19 comes into contact with lower tapered portion 31b and is supported. In this manner, the supporting step is carried out during the pushing step.

[0079] Thereafter, the upper tool 32 continues to move downward relative to the lower tool 31, so that the upper tapered portion 32b presses the upper cylindrical portion 18 downward, and the lower cylindrical portion 19 is pressed downward toward the lower tapered portion 31b, as shown in Fig. 13. As a result, the upper tapered portion 32b crimps the upper cylindrical portion 18 to expand its diameter, and the lower tapered portion 31b crimps the lower cylindrical portion 19 to expand its diameter.

[0080] (C) In the passenger conveyor 1, manufacturing apparatus and manufacturing method according to the above embodiment, the shaft 12 is configured to have cylindrical portions 18, 19 (crimped portions 18a, 19a) at both ends. However, the passenger conveyor 1, manufacturing apparatus and manufacturing method are not limited to this configuration.

[0081] For example, the shaft body 12 may have a cylindrical portion (crimped portion) at one end and may not have a cylindrical portion (crimped portion) at the other end. For example, as shown in Figures 14 and 15, the shaft body 12 may have a lower cylindrical portion 19 at the lower end and a stop portion 12a at the upper end that is wider than the upper plate hole 14d and is stopped by abutting against the upper plate 14a.

[0082] The manufacturing method according to FIGS. 14 and 15 will be described below.

[0083] First, as shown in Fig. 14, in the supporting step, the abutment stop portion 12a is abutted against the upper plate 14a from below, and the lower cylindrical portion 19 protrudes downward from the lower plate hole 14e, and the lower tapered portion 31b supports the lower cylindrical portion 19. Then, in the pushing step, the upper tool 32 moves downward relative to the lower tool 31, so that the upper tool 32 pushes the shaft 12 downward. As a result, the lower cylindrical portion 19 is pushed downward toward the lower tapered portion 31b, as shown in Fig. 15, and the lower tapered portion 31b crimps the lower cylindrical portion 19 so as to expand its diameter.

[0084] Therefore, since the shaft body 12 is fixed to the device body 14 by the abutment portion 12a and the crimping portion 19a, the shaft body 12 can be fixed to the device body 14 using a press 20. Note that the configuration is not limited to that shown in Figures 14 and 15, and for example, the shaft body 12 may be configured to include an upper cylindrical portion 18 at its upper end and an abutment portion 12a at its lower end that is wider than the lower plate hole 14e and abuts against the lower plate 14b from above.

[0085] (D) In ​​addition, in the passenger conveyor 1, manufacturing apparatus, and manufacturing method according to the above embodiment, the lower plate 14b is configured to have an abutment portion 14f that abuts from below against the lower end surface 17b of the shaft main body portion 17. However, the passenger conveyor 1, manufacturing apparatus, and manufacturing method are not limited to this configuration.

[0086] For example, the shaft 12 before crimping may be configured to be free to move in the vertical direction D6 relative to the device body 14 (upper plate 14a and lower plate 14b). In such a configuration, for example, the lower tapered portion 31b may support the lower cylindrical portion 19, and the support portion 31d may support the device body 14, thereby positioning the shaft 12 relative to the device body 14 in the vertical direction D6.

[0087] (E) In addition, in the passenger conveyor 1, manufacturing apparatus, and manufacturing method according to the above embodiment, the rotation stopper 12b is disposed across the lower end of the shaft main body 17 and the lower cylindrical portion 19. However, the passenger conveyor 1, manufacturing apparatus, and manufacturing method are not limited to this configuration.

[0088] For example, the rotation stopper 12b may be arranged only on the lower end of the shaft main body 17. Furthermore, for example, the rotation stopper 12b may be arranged only on the lower cylindrical portion 19.

[0089] (F) In the passenger conveyor 1, manufacturing device, and manufacturing method according to the above embodiment, the shaft 12 is configured to have a rotation stopper 12b. However, the passenger conveyor 1, manufacturing device, and manufacturing method are not limited to this configuration. For example, the shaft 12 may not have the rotation stopper 12b and may be rotatable in the circumferential direction relative to the device body 14.

[0090] (G) In the passenger conveyor 1, manufacturing apparatus and manufacturing method according to the above embodiment, the upper cylindrical portion 18 is formed in an endless ring shape, and the lower cylindrical portion 19 is formed in an endless ring shape with a portion of the circumference cut out. However, the passenger conveyor 1, manufacturing apparatus and manufacturing method are not limited to this configuration.

[0091] For example, the upper tubular portion 18 may be formed in an annular shape with an end, with a portion cut out in the circumferential direction, and the lower tubular portion 19 may be formed in an annular shape without an end. Also, for example, each of the upper tubular portion 18 and the lower tubular portion 19 may be formed in an annular shape with an end, with a portion cut out in the circumferential direction. Also, for example, each of the upper tubular portion 18 and the lower tubular portion 19 may be formed in an annular shape without an end.

[0092] (H) In addition, in the passenger conveyor 1, manufacturing apparatus, and manufacturing method according to the above embodiment, the outer diameter of the shaft main body 17 is the same as the outer diameter of the cylindrical portions 18, 19. However, the passenger conveyor 1, manufacturing apparatus, and manufacturing method are not limited to this configuration.

[0093] For example, the outer diameter of shaft main body 17 may be larger than the outer diameters of cylindrical portions 18, 19. Although not particularly limited, in such a configuration, even if upper cylindrical portion 18 and lower cylindrical portion 19 are each formed in an endless annular shape, abutment portion 14f of lower plate 14b can abut and stop lower end surface 17b of shaft main body 17 from below at a position outside lower cylindrical portion 19.

[0094] (I) In addition, in the passenger conveyor 1, manufacturing apparatus, and manufacturing method according to the above embodiment, the lower tool 31 is configured to be movable in the vertical direction D6 relative to the lower tapered portion 31b and to include a support portion 31d that supports the device body 14 from below. However, the passenger conveyor 1, manufacturing apparatus, and manufacturing method are not limited to this configuration.

[0095] For example, the lower tool 31 may not include the support portion 31d, and the lower tool 31 may support the shaft 12 from below with the lower tapered portion 31b, but may not support the device body 14 from below. Also, for example, the support portion 31d may be fixed to the lower tapered portion 31b (immovable relative to the lower tapered portion 31b).

[0096] (J) For example, the order of execution of each process, such as operations, procedures, steps, and stages, in the methods and apparatuses shown in the claims, specifications, and drawings, may be arbitrary, so long as the result of a previous process is not used in a subsequent process. For example, even if the description uses "first," "next," etc. for convenience, it does not mean that the processes must be executed in this order. [Explanation of symbols]

[0097] 1... man conveyor, 2... structure, 3... conveying section, 3a... running section, 3b... step, 4... balustrade section, 4a... handrail belt, 4b... belt support section, 4c... balustrade main body section, 4d... cover section, 4e... second belt roller device (belt drive device), 4f... third belt roller device (belt tension device), 5... drive section, 5a... drive wheel, 5b... running support section, 5c... drive source, 5d... transmission section, 6... processing section, 10... first belt roller device (belt guide device), 11... roller, 12... shaft body, 12a... stop section, 12b... rotation stop section, 13... bearing, 14... device main body, 14a... upper side plate (first side plate), 14b... lower side plate (second side plate), 14c... bottom plate, 14d... upper plate hole (first plate hole), 14e... lower plate hole (second plate hole), 1 4f...contact portion, 15...bearing stopper, 16...spacer, 17...shaft main body portion, 17a...upper end surface (first end surface), 17b...lower end surface (second end surface), 17c...first flat surface, 17d...second flat surface, 18...upper cylindrical portion (first cylindrical portion), 18a...crimping portion, 19...lower cylindrical portion (second cylindrical portion), 19a...crimping portion, 20...press machine, 21...bolster, 21a...bolster Hole, 22...slide, 30...manufacturing tool, 31...lower tool, 31a...base portion, 31b...lower tapered portion, 31c...mounting portion, 31d...support portion, 31e...guide portion, 31f...elastic portion, 32...upper tool, 32a...mounting portion, 32b...upper tapered portion, D1...width direction, D2...front-rear direction, D3...upper direction, D4...first horizontal direction, D5...second horizontal direction, D6...upper direction

Claims

1. A manufacturing method for manufacturing a belt roller device having a roller that contacts a handrail belt of a passenger conveyor using a press machine and a manufacturing tool, comprising: The belt roller device is With Laura, A shaft body extending in a vertical direction and inserted into the roller; a device body having an upper plate and a lower plate that sandwich the roller in the vertical direction, The upper plate has an upper plate hole into which the shaft is inserted, The lower plate has a lower plate hole into which the shaft is inserted, The shaft body includes a lower cylindrical portion formed into a cylindrical shape at a lower end portion, The press machine is Bolster and a slide that is disposed above the bolster and moves in the up-down direction relative to the bolster, The manufacturing tool comprises: A lower tool attached to the bolster; an upper tool attached to the slide; The lower tool has a lower tapered portion whose diameter increases downward, The manufacturing method includes: a supporting step of supporting the lower tubular portion from below with the lower tapered portion in a state in which the lower tubular portion protrudes downward from the lower plate hole; and a pressing step of moving the upper tool downward relative to the lower tool by the press so that the upper tool presses the shaft downward, thereby crimping the lower cylindrical portion into the lower tapered portion.

2. The shaft body further includes an upper cylindrical portion formed into a cylindrical shape at an upper end portion, The upper tool has an upper tapered portion whose diameter increases upward, The supporting step includes supporting the lower cylindrical portion from below with the lower tapered portion in a state in which the upper cylindrical portion protrudes upward from the upper plate hole, 2. The method for manufacturing a belt roller device of a passenger conveyor as described in claim 1, wherein the pushing step comprises moving the upper tool downward relative to the lower tool so that the upper tapered portion presses the upper cylindrical portion downward, thereby crimping the upper cylindrical portion to the upper tapered portion.

3. The shaft further includes a shaft main body portion having a lower end surface, The lower cylindrical portion protrudes downward from the lower end surface, The method for manufacturing a belt roller device for a passenger conveyor according to claim 2, wherein the lower plate is provided with an abutment portion that abuts against the lower end surface from below.

4. The method for manufacturing a belt roller device for a passenger conveyor as described in claim 3, wherein at least one of the lower end portion of the shaft main body and the lower cylindrical portion is provided with a rotation stopper portion that is stopped in abutment against the contact portion in the circumferential direction of the shaft body.

5. The lower tool is a support portion that is movable in a vertical direction relative to the lower taper portion and supports the device body from below; The method for manufacturing a belt roller device for a passenger conveyor according to any one of claims 2 to 4, further comprising: an elastic portion that applies an upward elastic restoring force to the support portion.

6. A manufacturing method for manufacturing a belt roller device having a roller that contacts a handrail belt of a passenger conveyor using a press machine and a manufacturing tool, comprising: The belt roller device is With Laura, A shaft body extending in a vertical direction and inserted into the roller; a device body having an upper plate and a lower plate that sandwich the roller in the vertical direction, The upper plate has an upper plate hole into which the shaft is inserted, The lower plate has a lower plate hole into which the shaft is inserted, The shaft body has an upper cylindrical portion formed into a cylindrical shape at an upper end portion, The press machine is Bolster and a slide that is disposed above the bolster and moves in the up-down direction relative to the bolster, The manufacturing tool comprises: A lower tool attached to the bolster; an upper tool attached to the slide; The upper tool has an upper tapered portion whose diameter increases upward, The manufacturing method includes: a supporting step of supporting a lower end of the shaft body from below with the lower tool in a state in which the upper cylindrical portion protrudes upward from the upper plate hole; and a pressing step of moving the upper tool downward relative to the lower tool by the press so that the upper tapered portion presses the upper cylindrical portion downward, thereby crimping the upper cylindrical portion to the upper tapered portion.

7. A manufacturing tool used in the method for manufacturing the belt roller device of a passenger conveyor according to any one of claims 1 to 4 and 6.

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