CN112010145B - Component conveying tool and component conveying method of passenger conveyor - Google Patents
Component conveying tool and component conveying method of passenger conveyor Download PDFInfo
- Publication number
- CN112010145B CN112010145B CN202010073948.5A CN202010073948A CN112010145B CN 112010145 B CN112010145 B CN 112010145B CN 202010073948 A CN202010073948 A CN 202010073948A CN 112010145 B CN112010145 B CN 112010145B
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- rod member
- component
- passenger conveyor
- hook
- conveying
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- 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
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- Escalators And Moving Walkways (AREA)
Abstract
The invention provides a component carrying tool and a component carrying method of a passenger conveyor, which can carry structural components of the passenger conveyor with simple structure and high efficiency. The component carrier is provided with: a rod member that is erected between the handrails on both sides of the passenger conveyor; a fixed pedestal which is fixed on both sides of the rod member, respectively, and holds the handrail; a band portion that fastens the step shaft and the bar member; a first hook movable in an axial direction of the rod member; and a crane hooked to the first hook. When the disc brake is carried by using the component carrying tool, the rod member is erected between the handrails, the step shaft and the rod member are fastened by the belt portion, and the crane is provided on the first hook. Then, the first hook is moved in the axial direction of the rod member while the disc brake is lifted by the crane, so that the disc brake is separated from the driving unit, and the separated disc brake is lifted by the crane and conveyed.
Description
Technical Field
The present invention relates to a component carrier for a passenger conveyor and a component carrying method using the same.
Background
Conventionally, for example, patent document 1 discloses a tool for temporarily lifting a step of an escalator from a handrail. The tool is provided with: a transverse erection component which is transversely erected between a pair of handrails of the escalator; holding members which are provided on both sides of the transverse frame member and hold the handrail; and a lever block (registered trademark) for hoisting the steps of the escalator to the transverse erection member.
Documents of the prior art
Patent literature
Patent document 1: japanese patent laid-open publication No. 11-301961
Disclosure of Invention
Problems to be solved by the invention
Generally, a truss of a passenger conveyor represented by an escalator is provided with a plurality of step shafts to which steps to be taken by passengers are attached, a coupling member such as a step chain, and a driving unit. The drive unit circulates the steps by driving the coupling member. The drive unit is provided with components such as a disc brake.
In maintenance work of the drive unit, it is sometimes necessary to attach and detach a component such as a disc brake. In the attaching and detaching operation, there is a tool that moves and detaches the structural member in the horizontal direction in a state where the structural member is lifted. In the tool of patent document 1, since the component cannot be moved in the horizontal direction in a state where it is lifted, there is a possibility that the efficiency of the attaching and detaching operation is lowered.
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a component conveyance tool for a passenger conveyor, which can efficiently convey structural components of the passenger conveyor with a simple structure.
Another object of the present invention is to provide a method for conveying components of a passenger conveyor, which can efficiently convey structural components of the passenger conveyor with a simple structure.
Means for solving the problems
The component carrier of the present invention includes: a rod member that is erected between the handrails on both sides of the passenger conveyor; a fixed base fixed to both sides of the rod member, respectively, and holding the armrest; a belt portion that fastens a step shaft and a bar member of a passenger conveyor; a first hook provided so as to be movable in an axial direction of the rod member; and a crane (host) fixed to the first hook.
The component conveying method for conveying the structural components of the passenger conveyor by using the component conveying tool comprises the following steps: an erection step of erecting the rod member between the handrails so that the fixed pedestal grips the handrails; a fastening step of fastening the step shaft and the rod member via the belt portion; a setting step of setting the crane to the first hook; and a conveying step of conveying the structural member by a crane.
Effects of the invention
According to the component carrier of the passenger conveyor and the component carrying method using the component carrier of the present invention, the component carrier can be moved in the axial direction of the rod member while lifting the component of the passenger conveyor. Thus, the structural components of the passenger conveyor can be efficiently conveyed with a simple structure.
Drawings
Fig. 1 is a diagram for explaining a structure of a component carrier.
Fig. 2 is a front view showing the structure of the stationary base.
Fig. 3 is a perspective view showing a stationary base provided to the armrest.
Fig. 4 is a front view showing the structure of the hook.
Fig. 5 is a diagram for explaining a procedure of the rod member assembling process.
Fig. 6 is a diagram for explaining a procedure of the rod member assembling process.
Fig. 7 is a diagram for explaining a procedure of the rod member assembling process.
Fig. 8 is a diagram for explaining the procedure of the hook setting process.
Fig. 9 is a diagram for explaining the procedure of the hook setting process.
Fig. 10 is a diagram for explaining a procedure of the stationary base setting step.
Fig. 11 is a diagram for explaining a procedure of the stationary base setting step.
Fig. 12 is a diagram for explaining a procedure of the stationary base setting step.
Fig. 13 is a diagram for explaining a step of the erection process.
Fig. 14 is a diagram for explaining a procedure of the erection process.
Fig. 15 is a diagram for explaining a procedure of the erection process.
Fig. 16 is a diagram for explaining a procedure of the fastening process.
Fig. 17 is a diagram for explaining a procedure of the fastening process.
Fig. 18 is a diagram for explaining a procedure of the fastening process.
Fig. 19 is a diagram for explaining a chain block setting step.
Fig. 20 is a diagram for explaining a chain block setting step.
Fig. 21 is a diagram for explaining a chain block setting step.
Fig. 22 is a diagram for explaining a chain block setting step.
Fig. 23 is a diagram for explaining a procedure of the conveying step.
Fig. 24 is a diagram for explaining a procedure of the conveying step.
Fig. 25 is a diagram for explaining a procedure of the conveying step.
Description of the reference symbols
1: an escalator; 4: a step; 6: a drive unit; 60: a disc brake; 8: a step shaft; 12: a rod member; 122: a first bar member; 124: a second bar member; 126: a connecting member; 14: a fixed pedestal; 14R: a pedestal is fixed on the right side; 14L: a left side fixing pedestal; 140: a fixed part; 142: contacting a face; 144: a guide section; 146: fixing a small screw; 148: a rubber member; 16: hooking; 16 a: a first hook; 16 b: a second hook; 160: a fixed part; 162: a hook portion; 164: fixing a small screw; 18: binding tapes; 20: a chain block; 22: an eye bolt; 100: a component handling tool.
Detailed Description
Hereinafter, embodiments will be described with reference to the drawings. In addition, the same reference numerals are given to the common elements in the drawings, and redundant description is omitted.
Description of the preferred embodiment
1. Structure of component carrying tool
The component carrier is a device used when carrying a component of a drive unit in a maintenance operation of a passenger conveyor. The passenger conveyor of the present embodiment is an escalator, and the structural component of the drive unit is a disc brake.
Fig. 1 is a diagram for explaining a structure of a component carrier. As shown in the drawing, the component carrier 100 is installed and used so as to be suspended from handrails 2 provided on the left and right sides of an escalator 1. In the example shown in the figure, the steps 4 of the escalator 1 are removed, and the drive unit 6 and the step shaft 8 are exposed.
Specifically, the component carrier 100 includes the rod member 12, the fixed base 14, the hook 16, the tie wrap 18, and the chain block 20.
The rod member 12 is erected between a pair of handrails 2 of the escalator 1. As the rod member 12, a member having strength capable of withstanding the weight of the conveyance target member is used. The rod member 12 is configured to be dividable in consideration of the transportability of the apparatus. Specifically, the rod member 12 includes a first rod member 122 and a second rod member 124 each formed of a single pipe, and a connecting member 126 connecting these members on the same axis.
The fixed base 14 is fixed to both sides of the rod member 12, and holds the handrail 2. Stationary base 14 includes a right-side stationary base 14R fixed to one end of rod member 12 and a left-side stationary base 14L fixed to the other end of rod member 12. The right side stationary base 14R and the left side stationary base 14L are bilaterally symmetrical. Fig. 2 is a front view showing the structure of the stationary base. Fig. 3 is a perspective view showing a fixed base provided to the armrest. Here, the structure of the right side stationary base 14R is illustrated.
As shown in these figures, the right-side stationary base 14R includes a fixing portion 140 fixed to the rod member 12, a contact surface portion 142 in contact with the upper surface side of the armrest 2, and a guide portion 144 in contact with the outer edge side of the armrest 2. The fixing portion 140 has a cylindrical shape, passes through the outer peripheral side of the rod member 12, and is fixed to the rod member 12 by fastening a fixing screw 146. The contact surface portion 142 is configured to have a wider surface contacting the lower side of the inclined surface of the handrail 2 than a surface contacting the upper side of the inclined surface of the handrail 2. The length of the contact surface portion 142 in the longitudinal direction of the armrest 2 is larger than the diameter of the rod member 12. The guide portion 144 has a shape curved along the outer edge side of the handrail 2. A rubber member 148 is attached to the contact surface portion 142 and the surface of the guide portion 144 that contacts the armrest 2.
Fig. 4 is a front view showing the structure of the hook. As shown in the figure, the hook 16 includes a fixing portion 160 fixed to the rod member 12 and a hooking portion 162 formed with a hole for hooking the hook. The fixing portion 160 has a cylindrical shape, passes through the outer peripheral side of the rod member 12, and is fixed to the rod member 12 by fastening a fixing screw 164. Further, by loosening the fixing screw 164, the hook 16 can be attached so as to be movable in the axial direction of the rod member 12. With respect to component handling tool 100, three hooks 16 are mounted to bar member 12. In the following description, the hook 16 attached to the center of the rod member 12 is referred to as a first hook 16a, and the pair of hooks 16 attached to both end sides of the rod member 12 is referred to as a second hook 16 b.
The banding band 18 is an example of a band portion connecting between the hooking portion 162 of the second hook 16b and the step shaft 8 of the escalator 1. The tie wrap 18 is configured to enable tightening of the strap by a ratchet mechanism, for example.
The chain block 20 is an example of a crane for lifting a conveying target member such as the disc brake 60. The chain block 20 is used in a state of being hooked on the hook portion 162 of the first hook 16 a. As the chain block 20, a chain block 20 having a size corresponding to the weight of a structural member to be conveyed is used. Here, for example, a chain block 20 allowing 0.25t is used.
2. Component conveying tool setting and component conveying method
Next, a procedure of installing the component conveying tool 100 of the embodiment in the escalator 1 and a component conveying method will be described. Here, the component conveyance tool 100 is installed in the escalator 1, and conveys the disc brake 60, which is a component of the drive unit 6. When the component carrier 100 is installed, first, as a preliminary preparation, a plurality of (for example, three) steps 4 at the position of the drive unit 6 of the escalator 1 are removed, and the drive unit 6 is exposed to the outside in advance.
First, in the first bar member assembling step, the bar member 12 is assembled. Fig. 5 to 7 are views for explaining steps in the rod member assembling process. The rod member 12 is divided into a plurality of members and stored in consideration of portability. Here, as shown in fig. 5, first, the first rod member 122 and the second rod member 124 are inserted into both sides of the connecting member 126, respectively. Next, as shown in fig. 6, the fastening bolt provided at the center of the coupling member is fastened to couple them. As shown in fig. 7, if the first rod member 122 and the second rod member 124 are connected to form one rod member 12, the connected state is confirmed.
In the next hook setting process, the hook 16 is set. Fig. 8 and 9 are diagrams for explaining the procedure of the hook setting process. As shown in fig. 8, the hook 16 is inserted from the end of the rod member 12. At this time, as shown in fig. 9, first, the first hook 16a is inserted from the end portion on the right side of the rod member 12, and then the second hooks 16b are inserted from both sides of the rod member 12. Here, with respect to the first hook 16a, the fixing small screw 164 is not fastened first. Thus, the first hook 16a is provided so as to be movable in the axial direction of the rod member 12.
In the next stationary base installation step, the stationary base 14 is installed. Fig. 10 to 12 are diagrams for explaining steps of the stationary base setting step. As shown in fig. 10, the stationary base 14 is inserted from the end of the rod member 12. At this time, as shown in fig. 11, the right side stationary base 14R is provided in the following orientation: when viewed from the front, the wide contact surface portion 142 is located on the lower side, and the guide portion 144 is located on the end portion side of the rod member 12. Further, as shown in fig. 12, the left side stationary base 14L is provided in the following orientation: when viewed from the front, the wide contact surface portion 142 is positioned on the lower side, and the guide portion 144 is positioned on the end portion side of the rod member 12. The stationary base 14 is fixed to the rod member 12 by fastening the respective fixing screws 146.
In the next erection step, the bar members 12 are installed so as to be erected between the handrails 2 on both sides of the escalator 1. Fig. 13 to 15 are views for explaining steps of the erection process. As shown in fig. 13, the rod member 12 is provided so as to be bridged between the pair of armrests 2. At this time, the rod member 12 is disposed at a position where the disc brake 60 to be conveyed is located directly vertically below. As shown in fig. 14, the rod member 12 is disposed in such an orientation that the wide contact surface portion 142 of the stationary base 14 is located below the inclined surface of the armrest 2. As shown in fig. 15, the rod member 12 is provided so that the guide portion 144 of the fixing base 14 contacts the outer edge side of the handrail 2.
According to the arrangement structure of the rod member 12, the guide portion 144 can prevent the rod member 12 from being displaced in the axial direction. Further, since the wide contact surface portion 142 is disposed below the inclined surface, the stationary base 14 can effectively prevent the rod member 12 from shifting in the front-rear direction. Further, since the rubber member 148 is provided on the contact surface portion 142, the stationary base 14 can prevent the rod member 12 from being displaced and the armrest 2 from being damaged.
In the next fastening process, the tie wrap 18 is installed. Fig. 16 to 18 are views for explaining steps of the fastening process. As shown in fig. 16, tie-wraps 18 are fastened between the second hooks 16b provided on the left and right of the rod member 12 and the step shaft 8, respectively. At this time, the step shaft 8 located in the upper direction with respect to the inclined surface is selected to be fastened so that the stretching direction of the binding band 18 is nearly perpendicular with respect to the inclined surface of the escalator 1. As shown in fig. 17 and 18, the tie-up band 18 is hooked on the hooking portion 162 of the second hook 16b, and the length of the band wound around the root portion of the step shaft 8 is adjusted to adjust the fastening degree. By tightening the tie wrap 18, deflection of the rod member 12 is prevented.
In the next chain block setting step, the chain block 20 is attached. Fig. 19 to 22 are views for explaining a chain block setting step. As shown in these figures, the chain block 20 is suspended by the hook portion 162 of the first hook 16a provided to the bar member 12. As described above, the first hook 16a is attached to be movable in the left-right direction along the rod member 12. Therefore, as shown in fig. 20 and 21, the chain block 20 is configured to be movable between the fastening bolt of the connecting member 126 provided at the center of the bar member 12 and the second hook 16b on the right side. As shown in fig. 22, the swing bolt 22 is screwed into the disc brake 60. The hook of the chain block 20 is hooked to the swing bolt 22.
In the next conveying step, the disc brake 60 is conveyed by the chain block 20. Fig. 23 to 25 are diagrams for explaining the steps of the conveying process. In the conveying step, a component removing step, a separating step, and a lifting step are performed in this order. First, in the component removal step, the components for fixing the disc brake 60 are removed. Fig. 23 shows a state where the fixed disc brake 60 is lifted by the chain block 20. Here, in the state shown in fig. 23, the hub, the fixing bolt, and the like are removed from the disc brake 60. Further, the fixing bolt of the disc brake 60 is located at a place difficult to see. Therefore, in order to facilitate positioning when the disc brake 60 is attached to the drive unit 6, it is preferable to mark the position of the disc brake 60 with respect to the drive unit 6 before the next separation process.
In the next separation process, the disc brake 60 is separated from the drive unit 6. The disc brake 60 from which the fixing bolt or the like is removed needs to be temporarily shifted in the width direction of the escalator 1 and then lifted upward. Here, as shown in fig. 24, the second hook 16b is offset toward the right end side along the rod member 12. Thereby, the disc brake 60 is separated from the drive unit 6 and can move upward.
In the next hoisting step, the disc brake 60 is hoisted by the chain block 20. Then, as shown in fig. 25, the disc brake 60 is conveyed to the upper surface of the step 4. When the disc brake 60 is mounted, the respective steps may be performed in reverse order.
In this way, according to the component transfer tool 100 of embodiment 1, the lifted chain block 20 can be moved in the axial direction of the bar member 12. Thus, even a component that needs to be displaced in the width direction of the escalator 1 at the time of removal can be easily removed and transported.
The component carrier 100 according to embodiment 1 is fixed in contact with the handrail 2 and the step shaft 8. Therefore, the escalator 1 can also be operated with the component carrier 100 fixed. Therefore, in the component conveying method in the case where a plurality of components to be conveyed are provided, such as an escalator provided with a plurality of drive units 6, the method may further include a running step of running the escalator to the position of the drive unit 6 to be operated next, for example, in a state where the component conveying tool 100 is fixed. This eliminates the need for the work of setting the component carrier 100 at the position of the next carrier target component again, and therefore improves the work efficiency.
3. Modification of the component carrier of the embodiment
The component carrier 100 according to the embodiment may be modified as follows.
The rod member 12 may not be configured to be separable. The structure of the fixed base 14 is not limited as long as the bar members 12 can be fixed to the handrails 2 on both sides of the escalator 1. The binding band 18 is not limited in its configuration as long as it can fasten the step shaft 8 and the bar member 12 of the escalator 1. Also, the second hook 16b is not necessarily structured. That is, the tie-wrap 18 may be wound directly around the rod member 12 and fastened. The type of the chain block 20 is not limited as long as it is a crane capable of lifting the structural members of the escalator 1.
The first hook 16a is not limited in structure as long as it can be provided so as to be movable in the axial direction of the rod member 12. The first hook 16a may have a lock function of restricting the axial movement relative to the rod member 12.
In the component carrier 100 of the present embodiment, the components that can be carried are not limited to the disc brake 60. That is, the component conveyance tool 100 can also be applied to conveyance of wide components that need to be moved in the width direction of the passenger conveyor at the time of removal, such as the motor of the drive unit 6.
Claims (9)
1. A component conveying tool of a passenger conveyor is provided with:
a rod member that is erected between the handrails on both sides of the passenger conveyor;
a fixed base fixed to both sides of the bar member, respectively, and configured to hold the handle;
a belt portion that fastens the rod member and a step shaft of the passenger conveyor to which steps on which passengers are to be mounted, respectively;
a first hook provided movably in an axial direction of the rod member; and
and the crane is fixed on the first hook.
2. The component handling tool of a passenger conveyor of claim 1,
the rod member includes:
a first bar member;
a second bar member; and
a connecting member that connects the first rod member and the second rod member on the same axis,
the first rod member and the second rod member are configured to be separable.
3. The component carrier of a passenger conveyor of claim 1 or 2,
the stationary base includes:
a fixing portion fixed to the rod member;
a contact surface portion that contacts an upper surface side of the armrest; and
a guide portion contacting an outer edge side of the handrail,
with respect to the contact surface portion, a longitudinal direction of the contact surface portion is longer than a diameter of the rod member.
4. The component handling tool of a passenger conveyor of claim 3,
the contact surface portion is provided with a rubber member on a surface that contacts the upper surface side of the armrest.
5. The component handling tool of a passenger conveyor of claim 3,
the guide portion has a shape curved along an outer edge side of the armrest.
6. The component carrier of a passenger conveyor of claim 1 or 2,
the member carrier further comprises a second hook provided on the rod member,
one end of the belt portion is fixed to the second hook.
7. A component conveying method for conveying a structural component of a passenger conveyor by using the component conveying tool according to any one of claims 1 to 6,
the component conveying method includes:
an erection step of erecting the rod member between the handrails so that the fixed base grips the handrails;
a fastening step of fastening the step shaft and the bar member by the belt portion;
a setting step of setting the crane to the first hook; and
and a conveying step of conveying the structural member by the crane.
8. The component handling method according to claim 7, wherein the component is conveyed from the component conveying apparatus to the component conveying apparatus,
the structural component is a disc brake of the drive unit,
the conveying process includes:
a separation step of separating the disc brake from the drive unit by moving the first hook in the axial direction of the rod member while lifting the disc brake by the crane; and
a hoisting step of hoisting the disc brake separated in the separation step by the crane.
9. The component handling method according to claim 7 or 8,
the component conveying method further includes an operation step of operating the passenger conveyor in a state where the rod member is erected between the handrails in the erection step and the step shaft and the rod member are fastened by the belt portion in the fastening step.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019099731A JP6819724B2 (en) | 2019-05-28 | 2019-05-28 | Passenger conveyor parts transport tools and parts transport methods using them |
| JP2019-099731 | 2019-05-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112010145A CN112010145A (en) | 2020-12-01 |
| CN112010145B true CN112010145B (en) | 2022-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010073948.5A Active CN112010145B (en) | 2019-05-28 | 2020-01-22 | Component conveying tool and component conveying method of passenger conveyor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6819724B2 (en) |
| CN (1) | CN112010145B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7156444B1 (en) * | 2021-05-14 | 2022-10-19 | 三菱電機ビルソリューションズ株式会社 | Carrying tools and installation methods for carrying tools |
| CN117580796A (en) * | 2021-07-05 | 2024-02-20 | 三菱电机楼宇解决方案株式会社 | Suspension tool of escalator |
| KR102658021B1 (en) * | 2021-07-05 | 2024-04-17 | 미쓰비시 덴키 빌딩 솔루션즈 가부시키가이샤 | workbench of escalator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10218539A (en) * | 1997-02-12 | 1998-08-18 | Hitachi Building Syst Co Ltd | Footstep conveyor system of escalator for wheelchair |
| JPH10279242A (en) * | 1997-04-11 | 1998-10-20 | Hitachi Building Syst Co Ltd | Transportation device for passenger conveyor |
| JPH11301961A (en) * | 1998-04-24 | 1999-11-02 | Otis Elevator Co | Step suspension tool for escalator |
| JP2007290826A (en) * | 2006-04-26 | 2007-11-08 | Hitachi Ltd | Method for carrying in/out component of passenger conveyor, method for modifying passenger conveyor using the method, and device for carrying in/out component of passenger conveyor used for the method |
| CN107600970A (en) * | 2017-09-21 | 2018-01-19 | 邹城市唯彩智能科技有限公司 | A kind of belt conveyor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS465465Y1 (en) * | 1967-04-19 | 1971-02-25 | ||
| JPH10265161A (en) * | 1997-03-25 | 1998-10-06 | Hitachi Building Syst Co Ltd | Rear wheel exchange method of step of escalator |
| JP6012578B2 (en) * | 2013-10-25 | 2016-10-25 | 三菱電機ビルテクノサービス株式会社 | Heavy material transport method and heavy material transport device |
-
2019
- 2019-05-28 JP JP2019099731A patent/JP6819724B2/en active Active
-
2020
- 2020-01-22 CN CN202010073948.5A patent/CN112010145B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10218539A (en) * | 1997-02-12 | 1998-08-18 | Hitachi Building Syst Co Ltd | Footstep conveyor system of escalator for wheelchair |
| JPH10279242A (en) * | 1997-04-11 | 1998-10-20 | Hitachi Building Syst Co Ltd | Transportation device for passenger conveyor |
| JPH11301961A (en) * | 1998-04-24 | 1999-11-02 | Otis Elevator Co | Step suspension tool for escalator |
| JP2007290826A (en) * | 2006-04-26 | 2007-11-08 | Hitachi Ltd | Method for carrying in/out component of passenger conveyor, method for modifying passenger conveyor using the method, and device for carrying in/out component of passenger conveyor used for the method |
| CN107600970A (en) * | 2017-09-21 | 2018-01-19 | 邹城市唯彩智能科技有限公司 | A kind of belt conveyor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2020193079A (en) | 2020-12-03 |
| CN112010145A (en) | 2020-12-01 |
| JP6819724B2 (en) | 2021-01-27 |
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Address after: Tokyo, Japan Patentee after: Mitsubishi Electric Building Solutions Co.,Ltd. Address before: Tokyo, Japan Patentee before: MITSUBISHI ELECTRIC BUILDING TECHNO-SERVICE Co.,Ltd. |