WO2021084707A1 - 乗客コンベアのチェーンの点検治具および点検方法 - Google Patents

乗客コンベアのチェーンの点検治具および点検方法 Download PDF

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Publication number
WO2021084707A1
WO2021084707A1 PCT/JP2019/042883 JP2019042883W WO2021084707A1 WO 2021084707 A1 WO2021084707 A1 WO 2021084707A1 JP 2019042883 W JP2019042883 W JP 2019042883W WO 2021084707 A1 WO2021084707 A1 WO 2021084707A1
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WO
WIPO (PCT)
Prior art keywords
chain
sprocket
passenger conveyor
handrail
contactor
Prior art date
Application number
PCT/JP2019/042883
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
正雄 明石
Original Assignee
三菱電機ビルテクノサービス株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機ビルテクノサービス株式会社 filed Critical 三菱電機ビルテクノサービス株式会社
Priority to JP2020538158A priority Critical patent/JP6870782B1/ja
Priority to PCT/JP2019/042883 priority patent/WO2021084707A1/ja
Priority to CN201980098168.1A priority patent/CN114072348B/zh
Publication of WO2021084707A1 publication Critical patent/WO2021084707A1/ja

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B29/00—Safety devices of escalators or moving walkways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B31/00—Accessories for escalators, or moving walkways, e.g. for sterilising or cleaning

Definitions

  • the present invention relates to an inspection jig and an inspection method for a chain of a passenger conveyor.
  • Patent Document 1 discloses a chain inspection device for a passenger conveyor. According to the inspection device, wear of the chain of the passenger conveyor can be detected.
  • An object of the present invention is to provide an inspection jig and an inspection method for a chain of a passenger conveyor capable of accurately grasping the elongation of the chain.
  • the chain inspection jig for a passenger conveyor is a passenger conveyor in which a chain formed by connecting two adjacent links by a connecting body rotates while meshing with a sprocket, and the chain meshes with the sprocket. It is arranged at a position where it comes into contact with two adjacent connecting bodies at a starting position or a position where it ends meshing with respect to the rotation axis of the sprocket according to the amount of runout of the two connecting bodies that are in contact with each other when the chain rotates. It was provided with a contactor, which was displaced in the direction of separation or approach.
  • the chain In the method for inspecting a chain of a passenger conveyor according to the present invention, in a passenger conveyor in which a chain formed by connecting two adjacent links by a connecting body rotates while meshing with a sprocket, the chain begins to mesh with the sprocket.
  • the detection step In the moving rotation step, the detection step of detecting the displacement amount of the contactor by the detector of the inspection jig when the chain is rotating and moving is provided.
  • the contactor of the inspection jig is displaced in the direction away from or closer to the rotation axis of the sprocket according to the amount of runout of the two pins in contact when the chain rotates. Therefore, the elongation of the chain can be accurately grasped.
  • FIG. 1 It is a front view of the passenger conveyor to which the inspection jig of the chain of the passenger conveyor according to Embodiment 1 is applied. It is an exploded perspective view of the chain of the passenger conveyor to which the inspection jig of the chain of the passenger conveyor according to Embodiment 1 is applied. It is a front view of the inspection jig of the chain of a passenger conveyor in Embodiment 1. FIG. It is a side view of the inspection jig of the chain of a passenger conveyor in Embodiment 1. FIG. It is a figure which shows the detection result of the displacement amount of the contact by the inspection jig of the chain of a passenger conveyor in Embodiment 1. FIG.
  • FIG. 1 is a front view of a passenger conveyor to which the inspection jig for the chain of the passenger conveyor according to the first embodiment is applied.
  • the passenger conveyor 1 in FIG. 1 is an escalator.
  • the left-right direction of the passenger conveyor 1 is a direction perpendicular to the paper surface.
  • the front-rear direction of the passenger conveyor 1 is the left-right direction of the paper surface.
  • the passenger conveyor 1 is hung between the upper floor and the lower floor of the building.
  • the first entrance 2a is provided on the upper floor of the building.
  • the second entrance 2b is provided on the lower floor of the building.
  • the passenger conveyor 1 is a device for transporting passengers between the first boarding / alighting port 2a and the second boarding / alighting port 2b.
  • the passenger conveyor 1 includes a main frame 3, a drive device 4, a pair of main sprockets 5, a drive chain 6, a pair of step chains 7, a plurality of steps 8, a pair of handrails 9, a pair of handrail drive devices 10, and a control panel (not shown). And.
  • the main frame 3 is hung between the first entrance / exit 2a and the second entrance / exit 2b.
  • the main frame 3 has an upper machine room 11a and a lower machine room 11b.
  • the upper machine room 11a is provided at the upper end of the main frame 3.
  • the upper machine room 11a is provided below the first entrance / exit 2a.
  • the lower machine room 11b is provided at the lower end of the main frame 3.
  • the lower machine room 11b is provided below the second entrance / exit 2b.
  • the drive device 4 is provided in the upper machine room 11a.
  • the drive device 4 includes a drive sprocket 12.
  • the drive device 4 is a device that generates a driving force for rotating the drive sprocket 12.
  • the drive sprocket 12 is an example of the sprocket of the passenger conveyor 1.
  • One of the pair of main sprockets 5 is provided on the left side of the passenger conveyor 1.
  • the other of the pair of main sprockets 5 is provided on the right side of the passenger conveyor 1.
  • the pair of main sprockets 5 are provided coaxially with each other so that they can rotate synchronously.
  • Each of the pair of main sprockets 5 is an example of the sprockets of the passenger conveyor 1.
  • the drive chain 6 is an endless chain.
  • the drive chain 6 is a roller chain.
  • the drive chain 6 is an example of a chain of the passenger conveyor 1.
  • the drive chain 6 is wound around the drive sprocket 12 so that it can move following the rotation of the drive sprocket 12.
  • the drive chain 6 is wound around one of the pair of main sprockets 5 so that the driving force generated by the drive device 4 can be transmitted.
  • the drive side sprocket of the drive chain 6 is the drive sprocket 12.
  • the driven sprocket of the drive chain 6 is the main sprocket 5 on which the drive chain 6 is wound.
  • Each of the pair of step chains 7 is an endless chain.
  • each of the pair of step chains 7 is, for example, a roller chain.
  • Each of the pair of step chains 7 is an example of a chain of the passenger conveyor 1.
  • One of the pair of step chains 7 is provided on the left side of the passenger conveyor 1.
  • the other side of the pair of step chains 7 is provided on the right side of the passenger conveyor 1.
  • the left step chain 7 is wound around the left main sprocket 5 so that it can move following the rotation of the left main sprocket 5.
  • the right step chain 7 is wound around the right main sprocket 5 so that it can move following the rotation of the right main sprocket 5.
  • the sprocket on the drive side of the step chain 7 is the main sprocket 5 to be wound.
  • Each of the plurality of steps 8 is connected between the pair of step chains 7.
  • the entire plurality of steps 8 are connected in a ring shape along a pair of step chains 7.
  • Each of the pair of handrails 9 is an endless ring.
  • each of the pair of handrails 9 is formed of synthetic rubber and canvas.
  • One of the pair of handrails 9 is provided on the left side of the plurality of steps 8.
  • the other side of the pair of handrails 9 is provided on the right side of the plurality of steps 8.
  • One of the pair of handrail drive devices 10 is provided on the left side of the passenger conveyor 1.
  • the other of the pair of handrail drive devices 10 is provided on the right side of the passenger conveyor 1.
  • the left handrail drive device 10 is a device that circulates and moves the left handrail 9.
  • the handrail drive device 10 on the right side is a device that circulates and moves the handrail 9 on the right side.
  • Each of the pair of handrail drive devices 10 includes a first handrail sprocket 13, a second handrail sprocket 14, a handrail drive roller unit 15, a pressure roller unit 16, a first handrail chain 17, and a second handrail chain 18.
  • the first handrail sprocket 13 of the left handrail drive device 10 is provided below the left handrail 9.
  • the first handrail sprocket 13 of the handrail drive device 10 on the right side is provided below the handrail 9 on the right side.
  • the first handrail sprocket 13 is an example of the sprocket of the passenger conveyor 1.
  • the second handrail sprocket 14 is provided coaxially with the first handrail sprocket 13 so that it can rotate in synchronization with the first handrail sprocket 13.
  • the second handrail sprocket 14 is an example of the sprocket of the passenger conveyor 1.
  • the handrail drive roller unit 15 includes a sprocket 19 and a plurality of rollers 20.
  • the sprocket 19 is a device that transmits rotation to a plurality of rollers 20.
  • the sprocket 19 is an example of the sprocket of the passenger conveyor 1.
  • Each of the plurality of rollers 20 included in the handrail drive roller unit 15 of the left handrail drive device 10 comes into contact with the left handrail 9.
  • Each of the plurality of rollers 20 included in the handrail drive roller unit 15 of the handrail drive device 10 on the right side comes into contact with the handrail 9 on the right side.
  • the pressure roller unit 16 includes a plurality of rollers 21.
  • the pressure roller unit 16 faces the handrail drive roller unit 15 with the handrail 9 interposed therebetween.
  • Each of the plurality of rollers 21 included in the pressure roller unit 16 of the left handrail driving device 10 comes into contact with the left handrail 9.
  • Each of the plurality of rollers 21 included in the pressure roller unit 16 of the handrail drive device 10 on the right side comes into contact with the handrail 9 on the right side.
  • the first handrail chain 17 is an endless chain.
  • the first handrail chain 17 is, for example, a roller chain.
  • the first handrail chain 17 is an example of a chain of the passenger conveyor 1.
  • the first handrail chain 17 of the left handrail drive device 10 is wound around the left main sprocket 5 so that it can move following the rotation of the left main sprocket 5.
  • the first handrail chain 17 of the right handrail drive device 10 is wound around the right main sprocket 5 so that it can move following the rotation of the right main sprocket 5.
  • the first handrail chain 17 is wound around the first handrail sprocket 13 so that the rotation of the wound main sprocket 5 can be transmitted.
  • the drive-side sprocket of the first handrail chain 17 is the main sprocket 5.
  • the driven side sprocket of the first handrail chain 17 is the first handrail sprocket 13.
  • the second handrail chain 18 is an endless chain.
  • the second handrail chain 18 is a roller chain.
  • the second handrail chain 18 is an example of a chain of the passenger conveyor 1.
  • the second handrail chain 18 is wound around the second handrail sprocket 14 so that it can move following the rotation of the second handrail sprocket 14 that is synchronized with the rotation of the first handrail sprocket 13.
  • the second handrail chain 18 is wound around the sprocket 19 of the handrail drive roller unit 15 so that the rotation of the second handrail sprocket 14 can be transmitted.
  • the drive-side sprocket of the second handrail chain 18 is the second handrail sprocket 14.
  • the driven side sprocket of the second handrail chain 18 is the sprocket 19.
  • the control panel is provided in the upper machine room 11a.
  • the control panel controls the operation of the drive device 4.
  • the operation of the drive device 4 is a forward rotation of the drive sprocket 12, a reverse rotation of the drive sprocket 12, or a stop of the drive sprocket 12.
  • the forward rotation of the drive sprocket 12 corresponds to the ascending operation of the passenger conveyor 1 which is an escalator.
  • the reverse rotation of the drive sprocket 12 corresponds to the down operation of the passenger conveyor 1 which is an escalator.
  • the drive device 4 rotates the drive sprocket 12 forward under the control of the control panel.
  • the drive chain 6 circulates and moves following the rotation of the drive sprocket 12.
  • the main sprocket 5 around which the drive chain 6 is wound rotates following the circular movement of the drive chain 6.
  • the main sprocket 5 on which the drive chain 6 is not wound rotates in synchronization with the main sprocket 5 on which the drive chain 6 is wound.
  • Each of the pair of step chains 7 circulates following the rotation of each of the pair of main sprockets 5.
  • Each of the plurality of steps 8 follows the circular movement of the pair of step chains 7 and circulates with the upper side as the outward path.
  • the plurality of steps 8 for moving the outward route are arranged in a staircase pattern on a constant slope portion of the passenger conveyor 1.
  • Each first handrail chain 17 of the pair of handrail drive devices 10 circulates and moves following each of the pair of main sprockets 5.
  • the first handrail sprocket 13 rotates following the circulating movement of the first handrail chain 17.
  • the second handrail sprocket 14 rotates in synchronization with the first handrail sprocket 13.
  • the second handrail chain 18 circulates and moves following the rotation of the second handrail sprocket 14.
  • the sprocket 19 of the handrail drive roller unit 15 rotates following the circulating movement of the second handrail chain 18.
  • the sprocket 19 transmits rotation to each of the plurality of rollers 20.
  • Each of the pair of handrails 9 receives pressure from each of the plurality of rollers 21 in contact with each other, and circulates and moves by the frictional force between the plurality of rollers 20 in contact with each other.
  • Each of the pair of handrails 9 circulates at the same moving speed as each of the plurality of steps 8.
  • the user grabs one of the pair of handrails 9 and gets on one of the plurality of steps 8 from the second entrance 2b.
  • the user moves to the first entrance / exit 2a on step 8 of moving on the outbound route.
  • the inspection jig 22 is provided in the vicinity of the first handrail sprocket 13 of the first handrail chain 17.
  • the inspection jig 22 is a device that detects the elongation of the chain of the passenger conveyor 1.
  • FIG. 2 is an exploded perspective view of the chain of the passenger conveyor to which the inspection jig for the chain of the passenger conveyor according to the first embodiment is applied.
  • the first handrail chain 17 is shown as an example.
  • the front-rear direction of the first handrail chain 17 is the direction indicated by an arrow on the paper surface.
  • the front-rear direction of the first handrail chain 17 is the direction in which the first handrail chain 17 is stretched.
  • the left-right direction of the first handrail chain 17 is the direction indicated by an arrow on the paper surface.
  • the other chains of the passenger conveyor 1 may have the same configuration as the first handrail chain 17.
  • the first handrail chain 17 includes a plurality of inner links 23 and a plurality of outer links 24.
  • Each of the plurality of inner links 23 and the plurality of outer links 24 is an example of a chain link of the passenger conveyor 1.
  • Each of the plurality of inner links 23 includes a pair of inner plates 25, a pair of bushes 26, and a pair of rollers 27.
  • each of the pair of inner plates 25 is a flat plate having a constriction in the center in the front-rear direction.
  • One of the pair of inner plates 25 forms the left side surface of the inner link 23.
  • the other side of the pair of inner plates 25 forms the right side surface of the inner link 23.
  • Each of the pair of bushes 26 is a hollow cylindrical member.
  • the pair of bushes 26 are provided side by side between the pair of inner plates 25.
  • Each of the pair of rollers 27 is a hollow cylindrical member.
  • Each of the pair of rollers 27 is coaxially provided on the outside of each of the pair of bushes 26. That is, each of the pair of rollers 27 is rotatably provided with each of the pair of bushes 26 as a bearing.
  • Each of the pair of rollers 27 is an example of a portion of the coupling.
  • Each of the plurality of outer links 24 includes a pair of outer plates 28 and a pair of pins 29.
  • each of the pair of outer plates 28 is a flat plate having a constriction in the center in the front-rear direction.
  • One of the pair of outer plates 28 forms the left side surface of the outer link 24.
  • the other of the pair of outer plates 28 forms the right side surface of the outer link 24.
  • Each of the pair of pins 29 is a columnar member.
  • the pair of pins 29 are provided side by side between the pair of outer plates 28.
  • Each of the pair of pins 29 is an example of a portion of the coupling.
  • the outer link 24 is a member that connects two sets of inner links 23 back and forth.
  • the outer plate 28 forming the left side surface of the outer link 24 is provided on the left side of the set of inner links 23.
  • the outer plate 28 forming the right side surface of the outer link 24 is provided on the right side of the set of inner links 23.
  • the pin 29 on the front side of the outer link 24 is passed through the inside of the bush 26 provided on the rear side of the front inner link 23.
  • the pin 29 on the rear side of the outer link 24 is passed through the inside of the bush 26 provided on the front side of the rear inner link 23. In this way, the chain of the passenger conveyor 1 is formed by connecting a plurality of links.
  • FIG. 3 is a front view of the inspection jig for the chain of the passenger conveyor according to the first embodiment.
  • FIG. 4 is a side view of the inspection jig for the chain of the passenger conveyor according to the first embodiment.
  • the inspection jig 22 is a micro gauge.
  • the inspection jig 22 is a dial gauge.
  • the inspection jig 22 includes a stylus 30, a contactor 31, and a detector 32.
  • the stylus 30 is formed in a rod shape.
  • the contactor 31 is formed in a rectangular parallelepiped shape.
  • the contactor 31 is formed in an elliptical shape.
  • the contactor 31 is attached to the tip of the stylus 30 so that the longitudinal direction is orthogonal to the axis of the stylus 30.
  • the detector 32 supports the stylus 30 so as to be movable in the longitudinal direction.
  • the installation process For example, when inspecting the chain A of the passenger conveyor 1, the installation process, the rotational movement process, the detection process, the storage process, and the calculation process are performed.
  • the worker arranges the contactor 31 of the inspection jig 22 at a position where the chain A starts to mesh with the sprocket B or at a position where the chain A smoothly makes line contact with two adjacent connecting bodies C at two points. Let me. Although not shown, in this state, the worker fixes the detector 32 to a bearing unit or the like that supports the sprocket B.
  • the stylus 30 is displaced in a direction away from the rotation axis of the sprocket B and in a direction approaching the rotation axis of the sprocket B according to the amount of deflection of the two connecting bodies C in contact with each other when the reference chain A rotates. Placed in position. The stylus 30 is arranged at a position where it does not come into contact with the link D.
  • the worker rotates and moves the chain A at least once by changing the setting of the control panel.
  • the worker rotates the chain A at least once in both one-way and multi-directions by changing the setting of the control panel.
  • the detector 32 detects the displacement amount of the contactor 31 when the chain A is rotating and moving.
  • the detector 32 stores the information of the maximum value of the displacement amount of the contactor 31 by using the peak or peak-to-peak hold function.
  • the worker calculates the estimated value of the elongation amount of the chain A by a calculation device such as a maintenance terminal based on the information of the maximum value of the displacement amount stored in the storage process.
  • FIG. 5 is a diagram showing the detection result of the displacement amount of the contacts by the inspection jig of the chain of the passenger conveyor in the first embodiment.
  • E is the displacement amount of the contactor 31 when the passenger conveyor is operated ascending or descending in a new reference chain.
  • F is the displacement amount of the contactor 31 when the passenger conveyor is lowered in the chain in which the elongation is generated. At this time, the position of the contactor 31 corresponds to the position where the chain finishes meshing with the sprocket.
  • G is the displacement amount of the contactor 31 when the passenger conveyor is operated ascending in the chain in which the elongation is generated. At this time, the position of the contactor 31 corresponds to the position where the chain starts to mesh with the sprocket.
  • the contactor 31 is displaced by a certain amount.
  • the displacement amount of the contactor 31 increases according to the elongation rate of the link of the chain.
  • G at the position where the chain begins to mesh with the sprocket, the amount of displacement of the contact 31 increases according to the elongation rate of the link of the chain.
  • the rate of increase in the amount of displacement of C is higher than the rate of increase in the amount of change in B with respect to the rate of increase in the chain link.
  • the elongation can be more reliably grasped even if the elongation of a part of the chain is small.
  • the contactor 31 is in a direction away from or closer to the rotation axis of the sprocket depending on the amount of deflection of the two connecting bodies in contact with each other when the chain is rotationally moved. Displace to. Therefore, even if only a part of the link of the chain is extended, the extension can be accurately grasped.
  • the detector 32 stores information on the maximum value of the amount of runout of the contactor 31 when the chain goes around. Therefore, the elongation of the chain can be grasped more accurately.
  • the contactor 31 is arranged at a position where the contactor 31 is displaced from the rotation axis of the sprocket in a direction away from or closer to the rotation axis of the sprocket according to the amount of runout of the two connecting bodies in contact with each other when the reference chain rotates. Will be done. Therefore, the elongation of the chain can be grasped more easily.
  • the contactor 31 is arranged at a position where it does not come into contact with the link. Therefore, the displacement amount of the contactor 31 can be detected more accurately. As a result, the elongation of the chain can be grasped more accurately.
  • the inspection jig 22 of the first embodiment may be applied to a moving walkway chain. In this case as well, the elongation of the chain can be accurately grasped.
  • the elevator inspection jig and inspection method according to the present invention can be used for the passenger conveyor.

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  • Escalators And Moving Walkways (AREA)
PCT/JP2019/042883 2019-10-31 2019-10-31 乗客コンベアのチェーンの点検治具および点検方法 WO2021084707A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2020538158A JP6870782B1 (ja) 2019-10-31 2019-10-31 乗客コンベアのチェーンの点検治具および点検方法
PCT/JP2019/042883 WO2021084707A1 (ja) 2019-10-31 2019-10-31 乗客コンベアのチェーンの点検治具および点検方法
CN201980098168.1A CN114072348B (zh) 2019-10-31 2019-10-31 乘客输送机的链条的检查辅具及检查方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/042883 WO2021084707A1 (ja) 2019-10-31 2019-10-31 乗客コンベアのチェーンの点検治具および点検方法

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WO2021084707A1 true WO2021084707A1 (ja) 2021-05-06

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JP (1) JP6870782B1 (zh)
CN (1) CN114072348B (zh)
WO (1) WO2021084707A1 (zh)

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CN116475842A (zh) * 2023-05-09 2023-07-25 冈田智能(江苏)股份有限公司 一种刀套外圆截面偏差检测装置、方法及链式刀库

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JPH11228064A (ja) * 1998-02-17 1999-08-24 Hitachi Building Systems Co Ltd 乗客コンベアのチェーンのたるみ量計測装置
JP2000035326A (ja) * 1998-07-17 2000-02-02 Hitachi Building Systems Co Ltd チェーンの伸長度診断装置
JP2001080866A (ja) * 1999-09-14 2001-03-27 Hitachi Building Systems Co Ltd チェーン伸長度診断装置
JP2016041625A (ja) * 2014-08-18 2016-03-31 三菱電機ビルテクノサービス株式会社 乗客コンベヤのチェーン片伸び検出装置
WO2018096615A1 (ja) * 2016-11-24 2018-05-31 三菱電機株式会社 チェーン伸び検出装置、チェーン伸び検出方法および乗客コンベヤ

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JP4141649B2 (ja) * 2001-02-20 2008-08-27 三菱電機ビルテクノサービス株式会社 乗客コンベヤの踏段チェーンの伸び量測定装置
JP2011173719A (ja) * 2010-02-26 2011-09-08 Mitsubishi Electric Building Techno Service Co Ltd チェーン摩耗検出装置
JP6058755B1 (ja) * 2015-07-09 2017-01-11 東芝エレベータ株式会社 乗客コンベア用チェーン伸び検出装置および乗客コンベア

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Publication number Priority date Publication date Assignee Title
JPH11228064A (ja) * 1998-02-17 1999-08-24 Hitachi Building Systems Co Ltd 乗客コンベアのチェーンのたるみ量計測装置
JP2000035326A (ja) * 1998-07-17 2000-02-02 Hitachi Building Systems Co Ltd チェーンの伸長度診断装置
JP2001080866A (ja) * 1999-09-14 2001-03-27 Hitachi Building Systems Co Ltd チェーン伸長度診断装置
JP2016041625A (ja) * 2014-08-18 2016-03-31 三菱電機ビルテクノサービス株式会社 乗客コンベヤのチェーン片伸び検出装置
WO2018096615A1 (ja) * 2016-11-24 2018-05-31 三菱電機株式会社 チェーン伸び検出装置、チェーン伸び検出方法および乗客コンベヤ

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116475842A (zh) * 2023-05-09 2023-07-25 冈田智能(江苏)股份有限公司 一种刀套外圆截面偏差检测装置、方法及链式刀库
CN116475842B (zh) * 2023-05-09 2023-09-29 冈田智能(江苏)股份有限公司 一种刀套外圆截面偏差检测装置、方法及链式刀库

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JP6870782B1 (ja) 2021-05-12
CN114072348A (zh) 2022-02-18
JPWO2021084707A1 (ja) 2021-11-18

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