CN111741919A - Simple step for escalator - Google Patents
Simple step for escalator Download PDFInfo
- Publication number
- CN111741919A CN111741919A CN201880089677.3A CN201880089677A CN111741919A CN 111741919 A CN111741919 A CN 111741919A CN 201880089677 A CN201880089677 A CN 201880089677A CN 111741919 A CN111741919 A CN 111741919A
- Authority
- CN
- China
- Prior art keywords
- layer side
- escalator
- upper layer
- pedal
- step shaft
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 230000008878 coupling Effects 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 8
- 238000005859 coupling reaction Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B23/00—Component parts of escalators or moving walkways
- B66B23/08—Carrying surfaces
- B66B23/12—Steps
-
- 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
Landscapes
- Escalators And Moving Walkways (AREA)
Abstract
Provided is a simple step for an escalator, which can restrain a pedal from moving in a transverse width direction. This simple and easy step for escalator possesses: a pedal (1); an upper layer side support part (2) which is arranged at the upper layer side part of the pedal (1) and is arranged on the upper layer side step shaft (7); a leg (3) which is provided at the lower-layer side portion of the step (1) and extends downward from the step (1); a lower-layer-side support section (4) that is provided to the leg section (3) and is supported by the lower-layer-side stepped shaft (8); and a support part fixing member (5) that fixes the upper layer side support part (2) with respect to the upper layer side step shaft (7).
Description
Technical Field
The present invention relates to a simple step for an escalator having a step.
Background
Conventionally, a simple step for an escalator is known, which is provided at a step opening portion formed by removing a part of steps from a plurality of steps arranged in a moving direction of the escalator. The simple step for the escalator comprises a pedal for the operator to get on and off and an upper layer side supporting part which is arranged at the upper layer side part of the pedal and supported on the upper layer side step shaft. In addition, this simple step for escalator possesses: a leg portion provided at a lower-layer side portion of the step plate and extending downward from the step plate; and a lower-layer side support portion provided on the leg portion and supported by a lower-layer side step shaft provided at a position closer to the lower layer side than the upper-layer side step shaft (see, for example, patent document 1).
Documents of the prior art
Patent document
Patent document 1: japanese Kokai publication Sho-52-155301
Disclosure of Invention
Problems to be solved by the invention
However, when the operator rides on or off the pedal, the pedal may move in the lateral direction. As a result, there is a problem that the work efficiency is deteriorated.
The present invention has been made to solve the above-described problems, and an object thereof is to provide a simple step for an escalator capable of suppressing movement of a step in a lateral width direction.
Means for solving the problems
The simple step for an escalator of the present invention comprises: a pedal; an upper layer side support part which is arranged at the upper layer side part of the pedal and is arranged on the upper layer side step shaft; a leg portion provided at a lower-layer side portion of the step plate and extending downward from the step plate; a lower-layer side support part which is arranged on the leg part and is placed on the lower-layer side step shaft, wherein the lower-layer side step shaft is arranged at the position closer to the lower layer side than the upper-layer side step shaft; and a support part fixing member for fixing the upper layer side support part relative to the upper layer side step shaft.
Effects of the invention
According to the simple step for an escalator of the present invention, the upper layer side support portion is fixed to the upper layer side step shaft by the support portion fixing member. This can suppress the movement of the pedal in the lateral direction.
Drawings
Fig. 1 is a side view showing a simple step for an escalator according to embodiment 1 of the present invention.
Fig. 2 is a plan view showing a simple step for an escalator of fig. 1.
Fig. 3 is a back view showing a simple step for an escalator of fig. 1.
Fig. 4 is a side view showing a simple step for an escalator when the leg body of fig. 1 is displaced.
Fig. 5 is a front view showing key parts of the simple step for an escalator of fig. 1.
Fig. 6 is a side view showing key parts of the simple step for an escalator of fig. 3.
Detailed Description
Fig. 1 is a side view showing a simple step for an escalator according to embodiment 1 of the present invention, fig. 2 is a plan view showing the simple step for an escalator of fig. 1, and fig. 3 is a back view showing the simple step for an escalator of fig. 1. In the drawings, a simple step for an escalator according to embodiment 1 of the present invention is provided at a step opening portion formed by removing a part of steps from a plurality of steps arranged in a moving direction of the escalator. This simple and easy step for escalator possesses: a pedal 1 for the worker to take on and off; an upper layer side support portion 2 provided at an upper layer side portion of the step panel 1; and a pair of legs 3 provided at a lower-layer side portion of the step panel 1.
In this example, the upper side means a side close to the entrance of the upper side when viewed from above. The lower floor side is a side close to the lower floor side entrance when viewed from above.
Further, the simple step for an escalator includes: a pair of lower layer side support portions 4 provided on the respective leg portions 3; a support portion fixing member 5 provided on the upper layer side support portion 2; and a regulating member 6 provided on the lower layer side support portion 4.
A plurality of step shafts from which steps are removed are arranged in the step opening portion. Of a pair of step shafts adjacent to each other in the moving direction of the escalator, the step shaft disposed on the upper side is defined as an upper-layer-side step shaft 7, and the step shaft disposed on the lower-layer side is defined as a lower-layer-side step shaft 8. Therefore, the lower step shaft 8 is disposed on the lower layer side than the upper step shaft 7.
The upper layer side support portion 2 is mounted on the upper layer side step shaft 7. The lower layer side support portion 4 is mounted on the lower layer side step shaft 8. The simple steps for the escalator are supported by the upper step shaft 7 and the lower step shaft 8 by placing the upper layer side support 2 on the upper step shaft 7 and the lower layer side support 4 on the lower step shaft 8.
The pedal 1 has: a pedal body 11 formed in a plate shape; an anti-slip sheet 12 provided on an upper surface of the pedal body 11; a pair of side walls 13 provided at both ends in the lateral width direction of the pedal body 11; and a rear wall 14 provided at a lower-layer side end portion of the pedal body 11. The color of the anti-slip sheet 12 is yellow. This allows the worker who gets on the pedal 1 to easily confirm the antiskid sheet 12. The side wall 13 and the rear wall 14 are respectively disposed to extend downward from the step body 11.
A notch 111 in which the support portion fixing member 5 is disposed is formed in an upper layer side portion of the step body 11 and a widthwise central portion of the step body 11.
The upper layer side support portion 2 is fixed to an upper layer side portion of the pedal body 11 and to a lower surface of the pedal body 11. The upper layer side support portion 2 includes: a 1 st plate portion 21 that is in surface contact with the lower surface of the pedal body 11; a 2 nd plate portion 22 provided below the 1 st plate portion 21 and facing the 1 st plate portion 21; and a connecting portion 23 connecting the 1 st plate portion 21 and the 2 nd plate portion 22. A notch 211 is formed in the widthwise central portion of the 1 st plate 21. The connecting portion 23 connects the lower-layer side end of the 1 st plate portion 21 and the lower-layer side end of the 2 nd plate portion 22.
The upper step shaft 7 can be inserted between the 1 st plate portion 21 and the 2 nd plate portion 22. The upper-layer stepped shaft 7 is inserted between the 1 st plate portion 21 and the 2 nd plate portion 22 from the upper-layer side to the lower-layer side in the horizontal direction. The upper layer side support portion 2 is mounted on the upper layer side step shaft 7 by inserting the upper layer side step shaft 7 between the 1 st plate portion 21 and the 2 nd plate portion 22.
Each leg portion 3 has: a leg body 31 provided rotatably with respect to the step 1; and a leg body fixing member 32 provided between the leg body 31 and the step panel 1, for fixing the leg body 31 to the step panel 1. Fig. 4 is a side view showing the simple step for an escalator when the leg main body 31 of fig. 1 is displaced. As shown in fig. 1 and 4, the leg body 31 is displaced between a storage position overlapping the step 1 and a support position extending downward from the step 1.
The leg body fixing member 32 fixes the leg body 31 to the step 1 when the position of the leg body 31 is at the storage position and when the position is at the support position. The leg body fixing member 32 includes: a fixing member main body 321 provided rotatably on the leg portion 3; a 1 st projection 322 provided on the side wall 13; and a 2 nd protrusion 323 provided at the side wall 13. The 1 st projection 322 is disposed on the upper layer side of the 2 nd projection 323.
The proximal end portion of the fixing member main body 321 is rotatably provided to the leg portion 3. A notch 324 into which the 1 st projection 322 and the 2 nd projection 323 are inserted is formed at the distal end portion of the fixing member main body 321.
As shown in fig. 4, when the position of the leg body 31 is the storage position, the 1 st projection 322 can be inserted into the notch 324 of the fixing member body 321. By inserting the 1 st projecting portion 322 into the cutout portion 324, the leg portion main body 31 in the storage position is fixed to the pedal 1.
On the other hand, as shown in fig. 1, when the position of the leg body 31 is the supporting position, the 2 nd projecting portion 323 can be inserted into the notch portion 324 of the fixing member body 321. By inserting the 2 nd projecting portion 323 into the cutout portion 324, the leg portion main body 31 at the support position is fixed to the step panel 1.
The lower layer side support portion 4 is provided at the lower end portion of the leg main body 31 when the position of the leg main body 31 is the support position. In other words, the lower support portion 4 is provided at the distal end portion of the leg body 31. As shown in fig. 1, the lower layer side supporting portion 4 includes: a 1 st plate portion 41 that is in surface contact with the lower surface of the leg main body 31; a 2 nd plate portion 42 provided below the 1 st plate portion 41 and facing the 1 st plate portion 41; and a connecting portion 43 connecting the 1 st plate portion 41 and the 2 nd plate portion 42. The connecting portion 43 connects the upper-layer-side end of the 1 st plate portion 41 and the upper-layer-side end of the 2 nd plate portion 42 when the position of the leg body 31 is the support position.
The lower step shaft 8 can be inserted between the 1 st plate portion 41 and the 2 nd plate portion 42. The lower step shaft 8 is inserted between the 1 st plate 41 and the 2 nd plate 42 from the lower side toward the upper side in the horizontal direction. The lower layer side support portion 4 is placed on the lower layer side step shaft 8 by inserting the lower layer side step shaft 8 between the 1 st plate portion 41 and the 2 nd plate portion 42.
As shown in fig. 1 and 2, the support portion fixing member 5 includes: an L-shaped arm 51 provided rotatably with respect to the pedal 1; and a fixing screw 52 which is a fixing member provided to be able to advance and retreat with respect to the arm portion 51. The fixing screw 52 has: a screw main body 521; and an abutting piece 522 provided at a distal end portion of the screw main body 521 to be in contact with the upper-stage side step shaft 7. The contact piece 522 is made of, for example, a metal, resin, or the like softer than the upper step shaft 7. Therefore, when the contact piece 522 is in contact with the upper step shaft 7, the upper step shaft 7 can be prevented from being damaged. The arm 51 is rotated to displace the fixing screw 52 between a fixing position where the upper-layer-side step shaft 7 is disposed between the fixing screw 52 and the coupling portion 23 and a release position where the upper-layer-side step shaft 7 is disengaged from between the fixing screw 52 and the coupling portion 23.
When the position of the fixing screw 52 is a fixed position, the fixing screw 52 moves in a direction approaching or separating from the coupling portion 23 by moving relative to the arm portion 51. When the position of the fixing screw 52 is the fixed position, the fixing screw 52 moves relative to the arm 51 toward the coupling portion 23, and the contact piece 522 of the fixing screw 52 presses the upper step shaft 7 toward the coupling portion 23. Thereby, the upper layer side support portion 2 is fixed to the upper layer side step shaft 7.
Fig. 5 is a front view showing key parts of the simple step for an escalator of fig. 1. In the case where the fixing screw 52 is displaced from the release position to the fixing position, the fixing screw 52 passes through the cutout 211 of the 1 st plate portion 21. When the position of the fixing screw 52 is a fixed position, the arm 51 is supported by the 1 st plate 21.
Fig. 6 is a side view showing key parts of the simple step for an escalator of fig. 3. The regulating member 6 has: a regulation pin 61 that is a regulation member inserted into through holes formed in the 1 st plate portion 41 and the 2 nd plate portion 42 of the lower layer side support portion 4, respectively; and a drop-preventing member 62 provided across the restricting pin 61 and the 2 nd plate portion 42 of the lower-stage side support portion 4.
The restricting pin 61 has: a pin portion 611 having a diameter slightly smaller than the diameter of each of the through holes of the 1 st plate portion 41 and the 2 nd plate portion 42; and a head portion 612 provided at one end portion in the longitudinal direction of the pin portion 611 and having a diameter larger than the diameter of the through hole of each of the 1 st plate portion 41 and the 2 nd plate portion 42. In a state where the head portion 612 is arranged above the pin portion 611, the pin portion 611 is inserted into the through-holes of the 1 st plate portion 41 and the 2 nd plate portion 42 from above, whereby the restricting pin 61 is supported by the lower support portion 4. This restricts the lower stage side stepped shaft 8 from being disengaged from the lower stage side support portion 4.
Next, a procedure for mounting the simple steps for an escalator will be described. First, the worker carries the simple steps for the escalator to the step opening portion. At this time, the position of the fixing screw 52 is a fixing position, the position of the leg body 31 is a storage position, and the 1 st projection 322 is inserted into the notch 324.
After that, the worker displaces the fixing screw 52 from the fixed position to the release position, and inserts the upper-layer side step shaft 7 between the 1 st plate portion 21 and the 2 nd plate portion 22 of the upper-layer side support portion 2. Thereby, the upper layer side support portion 2 is placed on the upper layer side step shaft 7.
Thereafter, the worker pulls out the 1 st projection 322 from the notch 324 to displace the leg body 31 from the storage position to the support position. At this time, the worker inserts the lower step shaft 8 between the 1 st plate portion 41 and the 2 nd plate portion 42 of the lower layer side support portion 4. Thereby, the lower stage side support portion 4 is placed on the lower stage side step shaft 8. As a result, the simple steps for the escalator are supported by the upper step shaft 7 and the lower step shaft 8.
Thereafter, the operator inserts the 2 nd projecting portion 323 into the cutout portion 324 to fix the leg body 31 to the step 1.
Thereafter, the operator displaces the fixing screw 52 from the release position to the fixing position, and moves the fixing screw 52 relative to the arm 51 toward the connection portion 23. Thereby, the contact piece 522 of the fixing screw 52 presses the upper step shaft 7 against the coupling portion 23. As a result, the upper layer side support portion 2 is fixed to the upper layer side step shaft 7. Therefore, the pedal 1 can be suppressed from moving in the lateral width direction.
Thereafter, the operator positions the head 612 above the pin portion 611, and inserts the pin portion 611 into the through-holes of the 1 st plate portion 41 and the 2 nd plate portion 42 from above. Thereby, the restricting pin 61 is supported by the lower support portion 4. Therefore, the lower stage shaft 8 is restricted from being disengaged from the lower stage side support portion 4. Thereby, the step of mounting the escalator simple steps is completed.
As described above, the simple step for an escalator according to embodiment 1 of the present invention includes: an upper layer side support part 2 mounted on the upper layer side step shaft 7; and a support portion fixing member 5 that fixes the upper layer side support portion 2 with respect to the upper layer side step shaft 7. This can suppress the movement of the pedal 1 in the lateral direction. As a result, the work efficiency of the worker can be improved.
Further, the leg portion 3 has: a leg body 31 that is displaced between a storage position overlapping the step board 1 and a support position extending downward from the step board 1; and a leg body fixing member 32 that fixes the leg body 31 to the step panel 1 when the position of the leg body 31 is the storage position and the support position. This makes it possible to easily convey the simple step for an escalator in a state where the position of the leg body 31 is fixed to the storage position, and to place the lower-stage-side support portion 4 on the lower-stage-side step shaft 8 in a state where the position of the leg body 31 is fixed to the support position.
The simple step for an escalator further includes a regulating member 6, and the regulating member 6 regulates the lower layer side support portion 4 from being detached from the lower layer side step shaft 8. This enables the lower stage side support portion 4 to be stably placed on the lower stage side step shaft 8.
Further, the support fixing member 5 includes: an arm 51 provided to be rotatable with respect to the pedal 1; and a fixing screw 52 provided to the arm 51. The arm 51 is rotated to displace the fixing screw 52 between a fixing position where the upper-layer-side step shaft 7 is disposed between the fixing screw 52 and the coupling portion 23 and a release position where the upper-layer-side step shaft 7 is disengaged from between the fixing screw 52 and the coupling portion 23. Thus, the upper layer side support 2 can be easily attached to and detached from the upper layer side step shaft 7 by setting the position of the support fixing member 5 to the release position, and the upper layer side support 2 can be easily fixed to the upper layer side step shaft 7 by setting the position of the support fixing member 5 to the fixed position.
In embodiment 1, the structure of the simple step for an escalator including the support portion fixing member 5 for fixing the upper layer side support portion 2 to the upper layer side step shaft 7 is described. On the other hand, the simple step for an escalator may be provided with a support portion fixing member for fixing the lower layer side support portion 4 to the lower layer side step shaft 8. In this case, a regulating member for regulating the separation of the upper stage side support portion 2 from the upper stage side step shaft 7 may be further provided.
In embodiment 1, a description has been given of a structure in which the leg body fixing member 32 fixes the leg body 31 to the step panel 1 when the position of the leg body 31 is the storage position and the support position. On the other hand, the leg body fixing member 32 may be configured to fix the leg body 31 to the step panel 1 only when the position of the leg body 31 is the support position.
Description of the reference symbols
1: a pedal; 2: an upper layer side support portion; 3: a leg portion; 4: a lower layer side support portion; 5: a support portion fixing member; 6: a regulating member; 7: an upper layer side step shaft; 8: a lower layer side step shaft; 11: a pedal body; 12: anti-slip sheets; 13: a side wall; 14: a rear wall; 21: a 1 st plate portion; 22: a 2 nd plate portion; 23: a connecting portion; 31: a leg body; 32: a leg body fixing member; 41: a 1 st plate portion; 42: a 2 nd plate portion; 43: a connecting portion; 51: an arm portion; 52: a set screw; 61: a restricting pin; 62: a drop prevention member; 111: a cut-out portion; 211: a cut-out portion; 321: a fixed member main body; 322: the 1 st protrusion; 323: the 2 nd protrusion; 324: a cut-out portion; 521: a screw body; 522: abutting the sheet; 611: a pin portion; 612: a head portion.
Claims (5)
1. A simple step for an escalator, comprising:
a pedal;
an upper layer side support part which is arranged at the upper layer side part of the pedal and is arranged on the upper layer side step shaft;
a leg portion provided at a lower-layer side portion of the step plate and extending downward from the step plate;
a lower layer side support portion provided on the leg portion and mounted on a lower layer side step shaft provided at a position closer to the lower layer side than the upper layer side step shaft; and
and a support portion fixing member that fixes the upper layer side support portion with respect to the upper layer side step shaft.
2. The simple step for an escalator as claimed in claim 1, wherein,
the leg portion has:
a leg body that is provided so as to be rotatable with respect to the pedal and is displaced between a storage position at which the leg body overlaps the pedal and a support position extending downward from the pedal; and
and a leg body fixing member that is provided between the leg body and the step board, and that fixes the leg body to the step board when at least the position of the leg body is the support position, the position of the leg body being at the storage position and the position of the leg body being at the support position.
3. The simple step for an escalator as claimed in claim 1 or 2, wherein,
the simple step for an escalator further includes a regulating member for regulating the lower-layer side support portion from being disengaged from the lower-layer side step shaft.
4. The simple step for an escalator as claimed in any one of claims 1 to 3, wherein,
the support fixing member includes: an arm portion provided rotatably with respect to the pedal; and a fixing member provided to the arm portion,
the arm is rotated to displace the anchor between a fixed position at which the upper-layer-side step shaft is disposed between the anchor and the upper-layer-side support portion and a released position at which the upper-layer-side step shaft is disengaged from between the anchor and the upper-layer-side support portion.
5. A simple step for an escalator, comprising:
a pedal;
an upper layer side support part which is arranged at the upper layer side part of the pedal and is arranged on the upper layer side step shaft;
a leg portion provided at a lower-layer side portion of the step plate and extending downward from the step plate;
a lower layer side support portion provided on the leg portion and mounted on a lower layer side step shaft provided at a position closer to the lower layer side than the upper layer side step shaft; and
and a support portion fixing member that fixes the lower layer side support portion with respect to the lower layer side step shaft.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2018/005784 WO2019159366A1 (en) | 2018-02-19 | 2018-02-19 | Simple step for escalators |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111741919A true CN111741919A (en) | 2020-10-02 |
| CN111741919B CN111741919B (en) | 2022-03-25 |
Family
ID=64480494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880089677.3A Active CN111741919B (en) | 2018-02-19 | 2018-02-19 | Simple step for escalator |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6429226B1 (en) |
| CN (1) | CN111741919B (en) |
| WO (1) | WO2019159366A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52155301U (en) * | 1976-05-21 | 1977-11-25 | ||
| JPH08143260A (en) * | 1994-11-22 | 1996-06-04 | Mitsubishi Denki Bill Techno Service Kk | Work scaffold for escalator |
| JP2001012072A (en) * | 1999-06-25 | 2001-01-16 | Hitachi Building Systems Co Ltd | Scaffolding device for high lift work |
| JP2002068654A (en) * | 2000-09-01 | 2002-03-08 | Mitsubishi Electric Building Techno Service Co Ltd | Footstep of escalator |
| JP2008174377A (en) * | 2007-01-22 | 2008-07-31 | Mitsubishi Electric Building Techno Service Co Ltd | Escalator with working scaffold |
| CN101511720A (en) * | 2006-09-27 | 2009-08-19 | 奥蒂斯电梯公司 | Device for working on escalator |
| US8776947B1 (en) * | 2011-03-23 | 2014-07-15 | Wurtec Elevator Products & Services | Elevator and escalator tool |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2656434B2 (en) * | 1993-03-29 | 1997-09-24 | 三菱電機ビルテクノサービス株式会社 | Escalator scaffolding |
| JP5004697B2 (en) * | 2007-07-02 | 2012-08-22 | 三菱電機ビルテクノサービス株式会社 | Passenger conveyor transport equipment |
-
2018
- 2018-02-19 JP JP2018534991A patent/JP6429226B1/en active Active
- 2018-02-19 CN CN201880089677.3A patent/CN111741919B/en active Active
- 2018-02-19 WO PCT/JP2018/005784 patent/WO2019159366A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52155301U (en) * | 1976-05-21 | 1977-11-25 | ||
| JPH08143260A (en) * | 1994-11-22 | 1996-06-04 | Mitsubishi Denki Bill Techno Service Kk | Work scaffold for escalator |
| JP2001012072A (en) * | 1999-06-25 | 2001-01-16 | Hitachi Building Systems Co Ltd | Scaffolding device for high lift work |
| JP2002068654A (en) * | 2000-09-01 | 2002-03-08 | Mitsubishi Electric Building Techno Service Co Ltd | Footstep of escalator |
| CN101511720A (en) * | 2006-09-27 | 2009-08-19 | 奥蒂斯电梯公司 | Device for working on escalator |
| JP2008174377A (en) * | 2007-01-22 | 2008-07-31 | Mitsubishi Electric Building Techno Service Co Ltd | Escalator with working scaffold |
| US8776947B1 (en) * | 2011-03-23 | 2014-07-15 | Wurtec Elevator Products & Services | Elevator and escalator tool |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019159366A1 (en) | 2019-08-22 |
| JP6429226B1 (en) | 2018-11-28 |
| JPWO2019159366A1 (en) | 2020-02-27 |
| CN111741919B (en) | 2022-03-25 |
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