JP7473884B1 - Method and apparatus for manufacturing step rollers for passenger conveyors - Google Patents

Abstract

[Problem] To provide a manufacturing method for a step roller for a passenger conveyor, in which a roller body and a side body can be fixed together with a rivet using a press machine. [Solution] In the manufacturing method for a step roller for a passenger conveyor, the manufacturing tool comprises a lower tool placed on a bolster and an upper tool placed above the lower tool and pressed downward by a slide, the lower tool having a holding part that holds the roller body, and the upper tool having a pressing part that protrudes downward to press a pin, and the manufacturing method includes a holding step in which the roller body is held by the holding part, an inserting step in which, with the side body placed on the front side of the roller body, a rivet is inserted through the main body hole and the side hole, and a pressing step in which the upper tool is moved downward relative to the lower tool by a press machine so that the pressing part presses the pin. [Selected Figure] Figure 10

Description

This specification relates to a manufacturing method and manufacturing tool for step rollers for man conveyors.

Conventionally, for example, a man conveyor has a step roller rotatably connected to a step, and the step roller has a roller body rotatably connected to the step and a side body fixed to the side of the roller body (for example, Patent Document 1). However, there is a demand to fix the rotor body and the side body with rivets using a press machine.

JP 2005-112602 A

The objective is to provide a manufacturing method and tool for a step roller for a passenger conveyor that can fasten the roller body and side body with rivets using a press machine.

The manufacturing method of the step roller of the man conveyor is as follows:
1. A method of manufacturing a step roller rotatably connected to a step of a people conveyor using a press and manufacturing tool, comprising the steps:
The step roller is
A roller body rotatably connected to the step;
A side body disposed on a side of the roller body;
a rivet for fixing the roller body and the side body,
The roller body has a body hole into which the rivet is inserted,
the side body has a side hole into which the rivet is inserted;
The rivet is
a rivet body inserted through the body hole and the side hole;
a pin that is inserted into the rivet body and is pressed into the rivet body to secure the roller body and the side body;
The press machine is
Bolster and
a slide that is disposed above the bolster and moves in a vertical direction relative to the bolster,
The manufacturing tool comprises:
A lower tool that is placed on the bolster;
an upper tool disposed above the lower tool and pushed downward by the slide;
The lower tool includes a holding portion that holds the roller body,
The upper tool has a pushing portion that protrudes downward to push the pin,
The manufacturing method includes:
a holding step of holding the roller body with the holding portion;
an insertion step of inserting the rivet through the main body hole and the side hole in a state where the side body is disposed on the side portion of the roller main body;
and a pressing step of moving the upper tool downward relative to the lower tool by the press machine so that the pressing portion presses the pin.

The manufacturing tool is used in the manufacturing method of the step rollers of the man conveyor.

Schematic diagram of a man conveyor using step rollers according to an embodiment. FIG. 3 is a perspective view of a main part of the passenger conveyor according to the embodiment; FIG. 1 is a front view of a step roller according to the embodiment; A cross-sectional view of line IV-IV in Figure 3 (a cross-sectional view of one rivet) An exploded view of FIG. 4 (a view showing the state before the rivet is processed) FIG. 1 is a front view of a manufacturing device for a step roller according to an embodiment; FIG. 1 is a partial cross-sectional view illustrating a holding step in the method for manufacturing the step roller according to the embodiment; FIG. 1 is a partial cross-sectional view illustrating a holding step in the method for manufacturing the step roller according to the embodiment; FIG. 1 is a partial cross-sectional view illustrating a step of inserting the step roller according to the embodiment of the present invention; FIG. 1 is a partial cross-sectional view illustrating a pressing step in the method for manufacturing the step roller according to the embodiment; FIG. 4 is a partial cross-sectional view illustrating a manufacturing method of the step roller according to the embodiment, showing a state where the manufacturing is completed.

In each drawing, the dimensions of the components may be enlarged or reduced relative to their actual dimensions, for example, to facilitate understanding, and the dimensional ratios between the drawings may not be consistent. In each drawing, some of the components may be omitted, for example, to facilitate understanding.

Terms including ordinal numbers such as first and second 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. Note that the number of components including ordinal numbers is not particularly limited, and may be, for example, one. Also, the ordinal numbers used in the following specification and drawings may differ from the ordinal numbers described in the claims.

First, before explaining the configuration of the step roller, the passenger conveyor in which the step roller is used will be explained with reference to Figures 1 and 2. Note that the following embodiment is an example to help understand the configuration of the passenger conveyor, and does not limit the configuration of the passenger conveyor.

As shown in FIG. 1, the passenger 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 of which is shown in FIG. 1) arranged to sandwich the transport section 3 in the 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.

In FIG. 1 (as well as FIG. 2 to FIG. 5), the first direction D1 is the width direction D1, which is parallel to the horizontal direction; the second direction D2 is the front-to-rear 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 D3, which is perpendicular to the width direction D1 and the front-to-rear direction D2.

The passenger conveyor 1 in this embodiment is an escalator with stepped treads to transport passengers, but is not limited to this configuration. For example, the passenger conveyor 1 may be a moving walkway with flat treads to transport passengers.

The conveying unit 3 may, for example, as in this embodiment, include an endless annular running unit 7 that rotates and runs when driven by the drive unit 5, and a plurality of steps 8 that are connected to the running unit 7 and run together with the running unit 7, and have a tread surface for people to stand on. Although not particularly limited, the running unit 7 may be, for example, a chain.

The driving unit 5 may include, for example, as in this embodiment, a rotating unit 5a around which a first end of the running unit 7 in the front-rear direction D2 is wrapped and which rotates about an axis in the width direction D1, a support unit 5b that supports a second end of the running unit 7 in the front-rear direction D2, and a driving source 5c that rotates the rotating unit 5a. As a result, the step 8 is reversed by the rotating unit 5a and also by the support unit 5b.

Although not particularly limited, the rotating part 5a may be, for example, a sprocket. Also, although not particularly limited, the support part 5b may be, for example, a guide material that guides the running part 7 to turn in the opposite direction, or may be, for example, a rotating material (e.g., a sprocket) around which the running part 7 is wound and which rotates about an axis in the width direction D1. Also, although not particularly limited, the drive source 5c may be, for example, a motor.

The balustrade section 4 may, for example, include an endless circular handrail belt 4a that rotates and runs, a balustrade main body section 4b that supports the handrail belt 4a, and a cover section 4c that covers the lower part of the balustrade main body section 4b. For example, the handrail belt 4a may run due to the drive of the drive section 5, and the running of the handrail belt 4a may be synchronized with the running of the step 8.

As shown in FIG. 2, the conveying section 3 may include, for example, a connecting shaft 3a connected to each of a pair of running sections 7, 7 spaced apart in the width direction D1, first and second step rollers 10, 3b rotatably connected to a step 8 disposed between the pair of running sections 7, 7, and a guide rail 3c that guides the step rollers 10, 3b. Note that the guide rail that guides the second step roller 3b is not shown in FIG. 2.

The guide rail 3c may, for example, as in this embodiment, have a lower guide portion 3d that guides the lower portion of the step roller 10 and a lateral guide portion 3e that guides the side portion of the step roller 10. Although not particularly limited, the guide rail 3c may, for example, be fixed to the structure 2.

The step 8 may, for example, as in this embodiment, have a tread portion 8a having a tread surface on which a person can stand, a rise portion 8b formed in a curved shape, and a connecting portion 8c rotatably connected to the connecting shaft 3a. As a result, the step 8 is connected to the running portion 7 rotatably about the axis of the width direction D1, and the step 8 runs together with the running portion 7.

The first step roller 10 may be connected to the end of the connecting shaft 3a, for example, as in this embodiment. As a result, the first step roller 10 is rotatably connected to the step 8 via the connecting shaft 3a. Also, the second step roller 3b may be rotatably connected directly to the shaft portion of the step 8, for example, as in this embodiment.

Next, one embodiment of the first step roller 10 will be described with reference to Figures 2 to 5. Note that the following embodiment is provided as an example to aid in understanding the configuration of the first step roller 10, and does not limit the configuration of the first step roller 10. In addition, the second step roller 3b may, for example, have the same configuration as the first step roller 10, or may, for example, have a different configuration from the first step roller 10.

As shown in Figures 2 to 4, the step roller 10 includes, for example, a roller body 11 rotatably connected to the step 8, a side body 12 disposed on the side of the roller body 11 in the axial direction D1 (specifically, the side of the step roller 10 in the rotational axis direction and the side in the width direction D1), and a rivet 13 that secures the roller body 11 and the side body 12. The number of rivets 13 is not particularly limited and may be, for example, one, or may be, for example, multiple (four in this embodiment).

The roller body 11 may, for example, as in this embodiment, have a main body portion 11a formed in an annular shape, an outer periphery portion 11b fixed to the outer periphery of the main body portion 11a and guided by the lower guide portion 3d of the guide rail 3c, and a bearing portion 11c fixed to the inner periphery of the main body portion 11a and rotatably connecting the connecting shaft 3a and the main body portion 11a. Although not particularly limited, the bearing portion 11c may, for example, be a bearing as in this embodiment, or may be, for example, a bushing.

The coefficient of friction of the outer periphery 11b with respect to the guide rail 3c may be, for example, greater than the coefficient of friction of the main body 11a with respect to the guide rail 3c. This can prevent the step roller 10 from slipping on the guide rail 3c. Although not particularly limited, for example, the main body 11a may be made of metal (e.g., steel, stainless steel, aluminum, etc.), and the outer periphery 11b may be made of resin (e.g., various types of rubber, etc.).

As shown in Figures 3 to 5, the main body 11a may have, for example, a concave storage portion 11d arranged on one side in the axial direction D1 to store the side body 12, a plurality of main body holes 11e that open into the storage portion 11d and extend in the axial direction D1 to insert the rivets 13, and a recess 11f that communicates with the main body holes 11e and opens to the other side in the axial direction D1.

As a result, the storage section 11d and the recess 11f are in communication with each other via the main body hole 11e. The number of main body holes 11e is not particularly limited, and may be, for example, the same as the number of rivets 13 (four) as in this embodiment, or may be, for example, greater than the number of rivets 13.

The side body 12 may be formed in an annular shape, for example, as in this embodiment. In this embodiment, the side body 12 is a guide member that is guided by the lateral guide portion 3e of the guide rail 3c. The side body 12 may have a plurality of side holes 12a extending in the axial direction D1, for example, for inserting the rivets 13.

The number of side holes 12a is not particularly limited, and may be, for example, the same as the number of rivets 13 (four) as in this embodiment, or may be, for example, greater than the number of rivets 13. Although not particularly limited, the size of side holes 12a may be, for example, slightly larger than the size of main body hole 11e as in this embodiment, or may be, for example, the same as the size of main body hole 11e.

The coefficient of friction of the side body 12 against the guide rail 3c may be smaller than the coefficient of friction of the roller body 11 (specifically, the main body portion 11a) against the guide rail 3c. This allows the side body 12 to be smoothly guided by the guide rail 3c. Although not particularly limited, for example, the main body portion 11a may be formed of metal (e.g., steel, stainless steel, aluminum, etc.), and the side body 12 may be formed of resin (e.g., phenolic resin, fluororesin, etc.).

As shown in Figures 4 and 5, the rivet 13 may, for example, have a cylindrical rivet body 13a that is inserted through the body hole 11e and the side hole 12a, and a pin 13b that is inserted into the rivet body 13a and pushed into the rivet body 13a to secure the roller body 11 and the side body 12.

For example, the rivet body 13a may have a cylindrical body 13c and a head 13d fixed to one end of the body 13c and having a larger diameter than the body 13c, and the other end of the body 13c may be divided in the circumferential direction, and when the pin 13b is pressed into the rivet body 13a, the other end of the body 13c is pushed by the pin 13b and expands in diameter.

Although not particularly limited, the rivet 13 may be, for example, a drive rivet, or may be, for example, a push rivet. In FIG. 4, the pin 13b is in a state after it has been pushed into the rivet body 13a (after processing and plastic deformation), and in FIG. 5, the pin 13b is in a state before it has been pushed into the rivet body 13a (before processing and plastic deformation).

Next, one embodiment of the manufacturing apparatus will be described with reference to FIG. 6. Note that the following embodiment 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.

As shown in FIG. 6, the manufacturing device may include, for example, a press machine 20, a manufacturing tool 30, and a jig 40, which are separate from one another. In FIG. 6 (as well as FIGS. 7 to 11), the first direction D4 is the first horizontal direction D4, which is parallel to the horizontal direction, the second direction D5 is the second horizontal direction D5, which is parallel to the horizontal direction and perpendicular to the first horizontal direction D4, and the third direction D6 is the vertical direction perpendicular to the first horizontal direction D4 and the second horizontal direction D5, which is the up-down direction D6.

The press machine 20 may, for example, include 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. The slide 22 may, for example, perform a reciprocating motion, moving from an upper limit position (the position shown in FIG. 6) to a lower limit position and then returning to the upper limit position.

For example, the upper limit position of the slide 22 may be arbitrarily changeable, and the lower limit position of the slide 22 may be arbitrarily changeable. 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 manual press machine).

The manufacturing tool 30 may, for example, as in this embodiment, include a lower tool 31 that is placed on the bolster 21, an upper tool 32 that is positioned above the lower tool 31 and is pushed downward by the slide 22, and a connection portion 33 that connects the lower tool 31 and the upper tool 32 so that the upper tool 32 can move in the vertical direction D6 relative to the lower tool 31. This allows the lower tool 31 and the upper tool 32 to be carried as a single unit, for example.

The manufacturing tool 30 may also include an elastic portion 34 disposed between the lower tool 31 and the upper tool 32, as in this embodiment. As a result, for example, when no external force is applied to the manufacturing tool 30, the upper tool 32 is located in a standby position (the upper limit position, the position shown in FIG. 6) due to the elastic restoring force of the elastic portion 34. On the other hand, for example, when an external force greater than the elastic restoring force of the elastic portion 34 is applied to the upper tool 32, the upper tool 32 moves downward so as to approach the lower tool 31.

The upper tool 32 may, for example, as in this embodiment, have a flat upper base portion 32a and a pressing portion 32b that protrudes downward from the upper base portion 32a to press the pin 13b of the rivet 13. The number of pressing portions 32b is not particularly limited, and may, for example, be the same as the number of rivets 13 (four) as in this embodiment, or may, for example, be different from the number of rivets 13.

The lower tool 31 may, for example, as in this embodiment, have a flat lower base portion 31a, a tool hole 31b that overlaps with the pushing portion 32b when viewed in the vertical direction D6, an insertion portion 31c that protrudes upward from the lower base 31a and is inserted into the center of the roller body 11, and a holding portion 31d that holds the roller body 11.

The tool hole 31b may be formed to protrude upward from the lower base portion 31a, as in this embodiment, or may be formed to open into the lower base portion 31a. The number of tool holes 31b is not particularly limited, and may be the same as the number of push portions 32b (four), as in this embodiment, or may be different from the number of push portions 32b.

The holding portion 31d may, for example, have a pair of clamping portions 31e that are movable in the first horizontal direction D4, as in this embodiment. As a result, the pair of clamping portions 31e clamp the roller body 11 in the first horizontal direction D4, and the holding portion 31d holds the roller body 11. Note that the configuration of the holding portion 31d is not limited to this configuration, and may be any configuration that can hold the roller body 11.

The connection portion 33 may include a guide mechanism 35 that guides the upper tool 32 so that the upper tool 32 moves parallel to the vertical direction D6 relative to the lower tool 31, as in this embodiment. The guide mechanism 35 may include, for example, a first guide portion 35a that extends in the vertical direction D6 and is fixed to the lower base portion 31a, as in this embodiment, and a second guide portion 35b that is fixed to the upper base portion 32a and is guided in the vertical direction D6 by the first guide portion 35a. Although not particularly limited, the guide mechanism 35 may be, for example, a linear guide.

The jig 40 may, for example, as in this embodiment, have an insertion portion 41 that is inserted into the body hole 11e and the tool hole 31b, a jig body 42 that is formed in an annular shape and has a through hole 42a through which the insertion portion 41 is inserted, and a retaining portion 43 that is fixed to the end of the insertion portion 41 and is larger than the through hole 42a.

As a result, the circumferential positions of the multiple insertion portions 41 are determined by the jig body 42. The number of insertion portions 41 is not particularly limited, and may be, for example, the same as the number of main body holes 11e (four) as in this embodiment, or may be different from the number of main body holes 11e.

Next, the manufacturing method of the step roller 10 according to this embodiment will be described with reference to Figures 7 to 11. Note that the following method is provided as an example to aid in understanding the manufacturing method of the step roller 10, and is not intended to limit the manufacturing method of the step roller 10.

<Retention step>
First, a holding step is performed. As shown in Fig. 7, the roller body 11 is placed on the lower tool 31 so that the insertion portion 31c of the lower tool 31 is inserted into the inside of the bearing portion 11c of the roller body 11. As a result, the roller body 11 is positioned to a certain extent with respect to the lower tool 31.

At this time, the roller body 11 is placed on the lower tool 31 so that the axial direction of the roller body 11 is parallel to the vertical direction D6. The tool hole 31b of the lower tool 31 is disposed inside the recess 11f of the roller body 11, and the body hole 11e of the roller body 11 is disposed above the tool hole 31b.

The jig 40 is then placed on the axial side of the roller body 11, and the roller body 11 is positioned relative to the lower tool 31. For example, of the three insertion parts 41 shown in FIG. 7, the center and right insertion parts 41 are in a state where the through hole 42a of the jig body 42 is not aligned with the body hole 11e of the roller body 11, and the left insertion part 41 is in a state where the through hole 42a is aligned with the body hole 11e, but the body hole 11e is not aligned with the tool hole 31b of the lower tool 31.

As shown in FIG. 8, the through holes 42a, the main body holes 11e, and the tool holes 31b are aligned, so that all of the insertion portions 41 are inserted across the through holes 42a, the main body holes 11e, and the tool holes 31b. In this state, the holding portion 31d holds the roller body 11. As a result, the position of the main body holes 11e is aligned with the position of the tool holes 31b, so that the position of the main body holes 11e can be aligned with the position of the pushing portion 32b of the upper tool 32.

<Insertion process>
Next, an insertion step is performed. As shown in Fig. 9, after the jig 40 is detached from the roller body 11, the side body 12 is disposed on the side of the roller body 11 in the axial direction (specifically, the up-down direction D6). The rivet 13 is then inserted through the main body hole 11e and the side hole 12a of the side body 12. As a result, since the position of the main body hole 11e is aligned with the position of the pressing portion 32b in the holding step, the position of the rivet 13 can be easily aligned with the position of the pressing portion 32b in the insertion step.

The length of the rivet 13 is the length that the rivet 13 is spaced upward from the tool hole 31b when inserted across the main body hole 11e and the side hole 12a. As a result, the rivet 13 is spaced upward from the tool hole 31b when inserted across the main body hole 11e and the side hole 12a. In other words, the lower end of the rivet 13 is positioned above the upper end of the tool hole 31b.

<Pressing process>
Next, the pushing step is performed. As shown in Fig. 10, the slide 22 moves downward relative to the bolster 21, whereby the slide 22 pushes the upper tool 32 downward, and the upper tool 32 moves downward relative to the lower tool 31. At this time, the guide mechanism 35 moves the upper tool 32 parallel to the up-down direction D6 relative to the lower tool 31. Then, the slide 22 moves to the lower limit position, whereby the upper tool 32 moves to the pushing position (lower limit position), and the pushing portion 32b pushes the pin 13b of the rivet 13 downward.

At this time, the multiple pushing portions 32b simultaneously push the pins 13b of the multiple rivets 13 downward, so that the multiple pins 13b are simultaneously pushed into the rivet body 13a. This, for example, can prevent unevenness in the amount of plastic deformation of the rivet body 13a, so that the roller body 11 and the side body 12 are appropriately fixed by the multiple rivets 13.

The length of the rivet 13 is such that even when the rivet 13 is inserted through the main body hole 11e and the side hole 12a and processed (plastically deformed), it is spaced upward from the tool hole 31b. As a result, even when the pin 13b is pressed into the rivet body 13a, the rivet 13 is spaced upward from the tool hole 31b, so that the rivet 13 can be prevented from hitting the tool hole 31b. Therefore, for example, the roller body 11 and the side body 12 are appropriately fixed by the rivet 13.

In this way, the roller body 11 and the side body 12 can be fixed together by the rivet 13 using the press machine 20. Then, as shown in FIG. 11, the slide 22 moves upward relative to the bolster 21, and the upper tool 32 moves upward relative to the lower tool 31 due to the elastic restoring force of the elastic portion 34.

When the slide 22 is in the upper limit position and the upper tool 32 is in the standby position, the upper tool 32 is separated from the slide 22. That is, in this embodiment, since the guide mechanism 35 is provided, the upper tool 32 is not fixed to the slide 22, and the upper tool 32 is not positioned relative to the slide 22.

In addition, in this embodiment, since the guide mechanism 35 is provided, the lower tool 31 is simply placed on the bolster 21 and is not fixed, and the positioning of the lower tool 31 relative to the bolster 21 is not performed. Therefore, it is sufficient to place the manufacturing tool 30 on the bolster 21 so that the upper tool 32 overlaps with the slide 22 when viewed in the vertical direction D6. Although not particularly limited, it is preferable to place the manufacturing tool 30 on the bolster 21 so that the slide 22 presses against the center of the upper tool 32, for example.

[1]
From the above, the manufacturing method of the step rollers 10, 3b (in this embodiment, the first step roller 10) of the passenger conveyor 1 is as follows:
A method of manufacturing a step roller 10 rotatably connected to a step 8 of a passenger conveyor 1 using a press 20 and a manufacturing tool 30, comprising the steps:
The step roller 10 is
A roller body 11 rotatably connected to the step 8;
A side body 12 disposed on a side of the roller body 11;
a rivet 13 for fixing the roller body 11 and the side body 12 together;
The roller body 11 has a body hole 11e into which the rivet 13 is inserted,
The side body 12 has a side hole 12a into which the rivet 13 is inserted,
The rivet 13 is
a rivet body 13a inserted through the body hole 11e and the side hole 12a;
a pin 13b that is inserted into the rivet body 13a and pressed into the rivet body 13a to fasten the roller body 11 and the side body 12 together;
The press machine 20 is
Bolster 21 and
a slide 22 that is disposed above the bolster 21 and moves in a vertical direction D6 relative to the bolster 21,
The manufacturing tool 30 includes:
A lower tool 31 placed on the bolster 21;
an upper tool 32 disposed above the lower tool 31 and pushed downward by the slide 22;
The lower tool 31 includes a holding portion 31d for holding the roller body 11.
The upper tool 32 includes a pressing portion 32b that protrudes downward to press the pin 13b.
The manufacturing method includes:
a holding step of holding the roller body 11 by the holding portion 31d;
an insertion step of inserting the rivet 13 into the main body hole 11e and the side hole 12a in a state in which the side body 12 is disposed on the side portion of the roller main body 11;
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 pressing portion 32b presses the pin 13b.
This method is preferred.

According to this method, the roller body 11 is held by the holding portion 31d. Then, with the side body 12 positioned on the side of the roller body 11, the rivet 13 is inserted through the body hole 11e and the side hole 12a. After that, the press machine 20 moves the upper tool 32 downward relative to the lower tool 31, causing the pressing portion 32b to press the pin 13b.

As a result, the pin 13b is pushed into the rivet body 13a, and the roller body 11 and the side body 12 are fixed by the rivet 13. Therefore, the roller body 11 and the side body 12 can be fixed by the rivet 13 using the press machine 20.

[2]
In addition, in the manufacturing method of the above [1], as in this embodiment,
The rivet 13, the main body hole 11e, the side hole 12a, and the pressing portion 32b are each provided in plurality,
The pressing step includes moving the upper tool 32 downward relative to the lower tool 31 by the press machine 20 so that the pressing portions 32b press the pins 13b simultaneously.
This method is preferred.

According to this method, the upper tool 32 is moved downward relative to the lower tool 31 by the press machine 20, so that the multiple pushing parts 32b push the multiple pins 13b simultaneously. This allows the multiple pins 13b to be pushed into the rivet body 13a simultaneously.

[3]
In the manufacturing method of the above [1] or [2], as in this embodiment,
The manufacturing tool 30 includes:
a connection portion 33 that connects the lower tool 31 and the upper tool 32 such that the upper tool 32 is movable in a vertical direction D6 relative to the lower tool 31;
A guide mechanism 35 that guides the upper tool 32 so that the upper tool 32 moves parallel to the up-down direction D6 relative to the lower tool 31.
This method is preferred.

According to this method, the connection portion 33 connects the lower tool 31 and the upper tool 32, and the guide mechanism 35 guides the upper tool 32, so that the upper tool 32 moves parallel to the vertical direction D6 relative to the lower tool 31. As a result, the lower tool 31 is placed on the bolster 21, and the upper tool 32 is pushed downward by the slide 22, so that the pushing portion 32b pushes the pin 13b.

[4]
In the manufacturing method of the above [2] or [3], as in this embodiment,
The lower tool 31 has a tool hole 31b that overlaps with the pushing portion 32b when viewed in the up-down direction D6,
The manufacturing method further includes using a jig 40 having an insertion portion 41 that is inserted across the main body hole 11e and the tool hole 31b,
The holding step includes holding the roller body 11 by the holding portion 31d in a state in which the insertion portion 41 is inserted across the body hole 11e and the tool hole 31b,
The insertion step is performed after the holding step and after the jig 40 is detached from the roller body 11.
This method is preferred.

According to this method, the roller body 11 is held by the holding portion 31d with the insertion portion 41 inserted across the body hole 11e and the tool hole 31b, so the position of the body hole 11e can be aligned with the position of the pushing portion 32b. After that, after the jig 40 is removed from the roller body 11, the rivet 13 is inserted across the body hole 11e and the side hole 12a with the side body 12 positioned on the side of the roller body 11. This makes it easy to align the position of the rivet 13 with the position of the pushing portion 32b.

[5]
In the manufacturing method of the above [4], as in this embodiment,
In the inserting step and the pushing step, the rivet 13 is inserted across the main body hole 11e and the side hole 12a, and then moves upward away from the tool hole 31b.
This method is preferred.

According to this method, when the rivet 13 is inserted through the main body hole 11e and the side hole 12a, it is spaced upward from the tool hole 31b, and even when the pin 13b is pushed into the rivet body 13a, the rivet 13 is spaced upward from the tool hole 31b. This prevents the rivet 13 from hitting the tool hole 31b.

[6]
In addition, the manufacturing tool 30, as in this embodiment,
A method for manufacturing the step roller 10 of the passenger conveyor 1 according to any one of the above [1] to [5],
This configuration is preferred.

With this configuration, the roller body 11 and the side body 12 can be fixed together with the rivet 13 using the press machine 20.

The man conveyor 1, manufacturing device, and manufacturing method are not limited to the configuration of the above-mentioned embodiment, nor are they limited to the above-mentioned effects. Furthermore, the man conveyor 1, manufacturing device, and manufacturing method can of course be modified in various ways without departing from the spirit of the present invention. For example, it is of course possible to arbitrarily select one or more of the configurations, methods, etc. related to the various modified examples described below and adopt them in the configurations, methods, etc. related to the above-mentioned embodiment.

(A) In the passenger conveyor 1, manufacturing device, and manufacturing method according to the above embodiment, the side body 12 is a guide material that is guided by the lateral guide portion 3e of the guide rail 3c. However, the passenger conveyor 1, manufacturing device, and manufacturing method are not limited to this configuration.

For example, the side body 12 may be a guide material that is guided by the panel of the cover portion 4c of the balustrade portion 4. Also, for example, the side body 12 may be a display material that displays information such as the manufacturer and model, or it may be a decorative material that is provided with a design, etc.

(B) In addition, in the manufacturing apparatus and manufacturing method according to the above embodiment, a plurality of pushing portions 32b are provided, and the plurality of pushing portions 32b simultaneously push a plurality of pins 13b. However, the manufacturing apparatus and manufacturing method are not limited to this configuration.

For example, the number of pushing parts 32b may be less than the number of rivets 13, and the pushing parts 32b may push the pins 13b of the multiple rivets 13 individually (at different times). Specifically, multiple rivets 13 may be provided, and only one pushing part 32b may be provided, and the pushing part 32b may push the pins 13b of the multiple rivets 13 individually, one by one.

(C) In addition, in the manufacturing apparatus and manufacturing method according to the above embodiment, the manufacturing tool 30 is configured to include a connection portion 33 that connects the lower tool 31 and the upper tool 32. However, the manufacturing apparatus and manufacturing method are not limited to this configuration.

For example, the connecting portion 33 may not be provided, the lower tool 31 and the upper tool 32 may be separated, the lower tool 31 may be fixed to the bolster 21, and the upper tool 32 may be fixed to the slide 22. Specifically, for example, the lower tool 31 may be positioned and fixed to the bolster 21, and the upper tool 32 may be positioned and fixed to the slide 22.

(D) In addition, in the manufacturing apparatus and manufacturing method according to the above embodiment, the connection portion 33 is configured to include a guide mechanism 35. However, the manufacturing apparatus and manufacturing method are not limited to this configuration. For example, the connection portion 33 and the guide mechanism 35 may each be configured as separate parts.

(E) In the manufacturing method according to the above embodiment, the manufacturing device is configured to include a jig 40. However, the manufacturing device and manufacturing method are not limited to this configuration. For example, the manufacturing device may not include a jig 40, and the manufacturing method may be such that the upper tool 32 is held in a position slightly above the pushing position, and the positions of the rivet 13 and the main body hole 11e are aligned with the position of the pushing portion 32b.

(F) In addition, in the manufacturing apparatus and manufacturing method according to the above embodiment, the rivet 13 is configured to be inserted through the main body hole 11e and the side hole 12a during the insertion process and the pushing process, and then move upward away from the tool hole 31b. However, the manufacturing apparatus and manufacturing method are not limited to this configuration.

(F-1) For example, in the insertion process, the rivet 13 may be inserted across the main body hole 11e and the side hole 12a and then move upward away from the tool hole 31b, and in the pushing process, the rivet 13 may be inserted across the main body hole 11e and the side hole 12a and then only the pin 13b may be inserted inside the tool hole 31b.

In this configuration, the size of the tool hole 31b may be set so that the pin 13b does not hit the tool hole 31b. With this configuration, it is possible to prevent the rivet 13 from hitting the tool hole 31b.

(F-2) For example, the rivet 13 may be configured to be inserted into the tool hole 31b in a state in which it is inserted across the main body hole 11e and the side hole 12a during the insertion process and the pushing process.

In this configuration, the size of the tool hole 31b may be set so that the rivet body 13a does not hit the tool hole 31b even if the other end of the body 13c expands in diameter during the pushing process due to deformation of the rivet body 13a. With this configuration, it is possible to prevent the rivet 13 from hitting the tool hole 31b.

(G) In addition, in the manufacturing apparatus and manufacturing method according to the above embodiment, the insertion process is performed after the holding process. However, the manufacturing apparatus and manufacturing method are not limited to this configuration. For example, the insertion process may be performed before the holding process.

(H) Note that, 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, can be realized in any order, so long as the result of a previous process is not used in a subsequent process. For example, even if "first" and "next" are used for convenience in the description, this does not mean that it is necessary to execute the processes in that order.

1... man conveyor, 2... structure, 3... transport section, 3a... connecting shaft, 3b... second step roller, 3c... guide rail, 3d... lower guide section, 3e... side guide section, 4... balustrade section, 4a... handrail belt, 4b... balustrade main body section, 4c... cover section, 5... drive section, 5a... rotating section, 5b... support section, 5c... drive source, 6... processing section, 7... running section, 8... step, 8a... tread section, 8b... riser section, 8c... connecting section, 10... first step roller, 11... roller main body, 11a... main body section, 11b... outer periphery, 11c... bearing section, 11d... storage section, 11e... main body hole, 11f... recess, 12... side body, 12a... side hole, 13... rivet, 13a... Rivet body, 13b...pin, 13c...body, 13d...head, 20...press machine, 21...bolster, 22...slide, 30...manufacturing tool, 31...lower tool, 31a...lower base, 31b...tool hole, 31c...insertion part, 31d...holding part, 31e...clamping part, 32...upper tool, 32a...upper base, 32b...pressing part, 33...connection part, 34...elastic part, 35...guide mechanism, 35a...first guide part, 35b...second guide part, 40...jig, 41...insertion part, 42...jig body, 42a...through hole, 43...removal prevention part, D1...width direction, D2...front-rear direction, D3...up-down direction, D4...first horizontal direction, D5...second horizontal direction, D6...up-down direction

Claims (6)

1. A method of manufacturing a step roller rotatably connected to a step of a people conveyor using a press and manufacturing tool, comprising the steps:
The step roller is
A roller body rotatably connected to the step;
A side body disposed on a side of the roller body;
a rivet for fixing the roller body and the side body,
The roller body has a body hole into which the rivet is inserted,
the side body has a side hole into which the rivet is inserted;
The rivet is
a rivet body inserted through the body hole and the side hole;
a pin that is inserted into the rivet body and is pressed into the rivet body to secure the roller body and the side body;
The press machine is
Bolster and
a slide that is disposed above the bolster and moves in a vertical direction relative to the bolster,
The manufacturing tool comprises:
A lower tool that is placed on the bolster;
an upper tool disposed above the lower tool and pushed downward by the slide;
The lower tool includes a holding portion that holds the roller body,
The upper tool has a pushing portion that protrudes downward to push the pin,
The manufacturing method includes:
a holding step of holding the roller body with the holding portion;
an insertion step of inserting the rivet through the main body hole and the side hole in a state where the side body is disposed on the side portion of the roller main body;
and a pushing step of moving the upper tool downward relative to the lower tool by the press so that the pushing portion pushes the pin. The rivet, the main body hole, the side hole, and the pressing portion are each provided in a plurality of portions,
2. The method for manufacturing a step roller for a passenger conveyor according to claim 1, wherein the pressing step comprises moving the upper tool downward relative to the lower tool by the press machine so that the multiple pressing portions press the multiple pins simultaneously. The manufacturing tool comprises:
a connection portion that connects the lower tool and the upper tool such that the upper tool can move in a vertical direction relative to the lower tool;
The method for manufacturing a step roller for a passenger conveyor as described in claim 2, further comprising a guide mechanism for guiding the upper tool so that the upper tool moves parallel to the up-down direction relative to the lower tool. The lower tool has a tool hole that overlaps with the pushing portion when viewed in the up-down direction,
The manufacturing method further includes using a jig having an insertion portion that is inserted across the main body hole and the tool hole,
The holding step includes holding the roller body with the holding portion in a state in which the insertion portion is inserted across the main body hole and the tool hole,
The method for manufacturing a step roller for a passenger conveyor according to claim 3, wherein the inserting step is performed after the holding step and after the jig is detached from the roller body. The method for manufacturing a step roller for a passenger conveyor according to claim 4, wherein the rivet is inserted through the main body hole and the side hole during the insertion process and the pushing process, and then leaves the tool hole upward. A manufacturing tool used in the method for manufacturing the step rollers of a passenger conveyor according to any one of claims 1 to 5.