JP2018188300A - Safety fence for maintenance work of escalator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a maintenance work in a safety fence of an escalator capable of being arranged and removed easily without being seen by users.SOLUTION: A safety fence 30 for maintenance work of an escalator has a telescopic bellows structure covering an entrance 20 on an upper floor 6 of the escalator 10, an entrance 22 on a lower floor 8, and both of left and right side surfaces and upward side of a hoistway 24 connecting the entrance 20 of the upper floor 6 and the entrance 22 of the lower floor 8 and it is splittable into at least two transportable bellows awning parts and each of split bellows awning part is connectable to other bellows awning parts removably.SELECTED DRAWING: Figure 1

Description

  The present disclosure relates to an escalator maintenance work safety fence.

  The escalator carries a user on a plurality of steps that move between an entrance on the upper floor and an entrance on the lower floor of the building. On both sides of the step, a skirt guard and a balustrade supporting a moving handrail are provided on the inner deck which is the upper surface thereof. The part opposite the inner deck across the balustrade is the outer deck.

  Patent Document 1 discloses a partition for constructing another set of escalators while operating one set of escalators among two sets of escalators provided adjacent to each other in a building. Here, an entrance / exit partition member that shields the entrance / exit from the outside and a central partition member that partitions an escalator between the floors in the vertical direction between the floor and the ceiling of each floor are used.

  Patent Document 2 points out that the central partition member of Patent Document 1 cannot be applied when there is no gap between escalators intersecting between floors, or when there is a gap and the gap is very narrow. . Here, it is disclosed that a center partition member is provided between an outer deck of an escalator to be operated and an exterior plate or a ceiling above the escalator between escalators intersecting between floors.

  In Patent Document 3, it is pointed out that the method of Patent Document 2 does not allow construction for an outer deck provided with a central partition member. Here, there are provided at least two inclined portion restraining members arranged obliquely between upper and lower vertical columns installed in the vicinity of the entrance / exit of the upper floor and in the vicinity of the entrance / exit of the lower floor, and the two inclined portions It is disclosed that a plurality of partition plates fitted between the restraining members are used as a central partition member.

  In Patent Document 4, in order to partition the entrance / exit on the upper floor and the lower floor of the escalator from the surroundings, a roof panel, a side panel, a door are provided between support pillars that are raised from the base and can be expanded and contracted in the height direction. A configuration for fitting a panel is disclosed. A wire is provided between the support pillar at the entrance and exit on the upper floor and the support pillar at the entrance and exit on the lower floor, and a plurality of disaster prevention sheets are arranged on this wire so as to cover the side surface of the oblique escalator. Is stated.

  In Patent Document 5, when a plurality of escalators are arranged next to each other in one arrangement space, an appropriate number of ropes are stretched in the vertical direction of the building in the side space between adjacent escalators. It is disclosed that it is handed over to a rope skeleton and a curtain is attached to it.

JP-A-8-151182 Japanese Patent Laid-Open No. 10-109868 JP 2002-293491 A JP 2002-060170 A JP 2001-151455 A

  The partition for construction disclosed in the prior art is large-scale and is not suitable for maintenance work such as maintenance inspection of an escalator that is completed in a short period of time. In the maintenance work of the escalator, a time zone convenient for the user is used, and the place of the maintenance work is surrounded by a safety fence so that the user or the like does not enter by mistake. However, in the case of an escalator installed in a store open 24 hours a day, 365 days a year, even if there is a user around, the height of the fence is about 1 m even if a safety fence is provided, and the user does not enter Even peeping into it and being able to talk to it can hinder maintenance work. The objective of this invention is providing the safety fence of the escalator which can be installed and removed easily and can perform a maintenance operation | work without touching a user's eyes.

  The maintenance work safety fence of the escalator according to the present disclosure includes the entrance / exit on the upper floor of the escalator, the entrance / exit of the lower floor, and the left and right sides of the hoistway connecting the entrance / exit of the upper floor and the entrance / exit of the lower floor, and the upper side. It has a stretchable bellows structure that covers and can be divided into at least two transportable bellows hood parts, and each of the divided bellows hood parts can be detachably connected to other bellows hood parts.

  According to the above configuration, since it is a safety fence with an expandable bellows structure that covers the upper and lower entrances, the lower entrance and the left and right sides of the hoistway and the upper side, without touching the eyes of the user Maintenance work is possible. Also, the whole can be divided into at least two transportable bellows hood parts, and each of the divided bellows hood parts can be detachably connected to other bellows hood parts, so that it can be easily installed and removed. Is possible.

  In the maintenance work safety fence of the escalator according to the present disclosure, the left and right vertical frames having a predetermined work height measured from the floor surface, provided at each of the upper floor entrance and the lower floor entrance and exit, A first entrance / exit frame having an upper frame connecting the upper part of the vertical frame, a second entrance / exit frame having the same structure as the first entrance / exit frame, and a height from the step to the upper surface of the handrail A right and left vertical frame having a second height subtracted from the working height, a hoistway frame body having an upper frame connecting upper portions of the left and right vertical frames, a first entrance / exit frame body, and a second entrance / exit A handrail of a hoistway connecting between the frame and connecting the entrance / exit hood covering the left and right sides and the upper side of the entrance / exit, the second entrance / exit frame and the hoistway frame, and connecting to the entrance / exit A hoistway hood covering the left and right sides of the upper part and the upper part of the upper part, and the first entrance / exit frame body, surrounded by the entrance / exit hood and hoistway hood An inlet curtain capable and from the working space, preferably comprises a composite hood portion including.

  According to the above configuration, the first entrance / exit frame having an entrance curtain and having a predetermined working height, the second entrance / exit frame having the same structure as the first entrance / exit frame, and the first entrance / exit frame And a hoistway frame having a height lower than that of the body and the second entrance / exit frame, and a space between them is covered with a hood. As a result, the maintenance worker can enter the interior covered with the hood from the entrance curtain and perform maintenance work without touching the eyes of the user.

  In the maintenance work safety fence of the escalator according to the present disclosure, it is preferable that the left and right vertical frames of the hoistway frame have rollers for handrail rolling.

  In the maintenance work safety fence of the escalator according to the present disclosure, it is preferable that the left and right vertical frames of the hoistway frame body have outer deck rolling rollers. According to the above configuration, the left and right vertical frames of the hoistway frame can be prevented from coming into contact with the handrail, so that maintenance work relating to the handrail can be performed.

  In the maintenance work safety fence of the escalator according to the present disclosure, one or more intermediate hood portions disposed between the composite hood portion for the upper floor and the composite hood portion for the lower floor, from the step to the upper surface of the handrail A first hoistway frame having a left and right vertical frame having a second height obtained by subtracting the height of the first work from a predetermined working height, and an upper frame connecting the upper portions of the left and right vertical frames; The second hoistway frame body having the same structure as the road frame body, the first hoistway frame body and the second hoistway frame body are connected, and the left and right side surfaces of the upper part of the hoistway and the upper side are covered. It is preferable to provide one or more intermediate hood parts including a hoistway hood. According to the said structure, the number of intermediate | middle top parts can be increased / decreased according to the length of a hoistway, and a hoistway part can be covered.

  In the maintenance work safety fence of the escalator according to the present disclosure, it is provided at the entrance / exit hood part for the upper floor, which is provided at the entrance / exit of the upper floor and covers the entrance / exit of the upper floor, and at the entrance / exit of the lower floor One or more intermediate positions between a lower floor entrance hood part having an entrance hood covering the lower floor entrance and a lower floor entrance hood part and a lower floor entrance hood part The upper and lower floor entrance and lower floor entrance and exit hood sections have left and right vertical frames having predetermined working heights measured from the floor, and left and right floor sections, respectively. A first entrance / exit frame having an upper frame connecting the upper part of the vertical frame, a second entrance / exit frame having the same structure as the first entrance / exit frame, a first entrance / exit frame, and a second entrance / exit frame In the working space surrounded by the entrance / exit hood and the entrance / exit hood that covers both the left and right sides of the entrance / exit and the upper side, and the first entrance / exit frame. The intermediate hood portion includes a left and right vertical frame having a second height obtained by subtracting a height from the step to the upper surface of the handrail from a predetermined working height; A first hoistway frame body having an upper frame connecting the upper part of the frame, a second hoistway frame body having the same structure as the first hoistway frame body, a first hoistway frame body and a second hoistway frame body; And a hoistway hood that covers both the left and right side surfaces of the upper part and the upper side of the handrail of the hoistway.

  According to the above configuration, the entrance / exit hood part for the upper floor and the entrance / exit hood part for the lower floor have a simple configuration as compared with the composite hood part including the hoistway hood for covering the hoistway on the entrance / exit side. it can.

  In the maintenance work safety fence of the escalator according to the present disclosure, it is preferable that the left and right vertical frames of the first hoistway frame body and the second hoistway frame body each have a handrail rolling roller.

  In the maintenance work safety fence of the escalator according to the present disclosure, it is preferable that the left and right vertical frames of the first hoistway frame body and the second hoistway frame body have outer deck rolling rollers.

  In the maintenance work safety fence of the escalator according to the present disclosure, it is preferable that the first entrance / exit frame and the second entrance / exit frame have a roller for rolling the floor surface. According to the said structure, it becomes easy to convey the composite top part which has a 1st entrance / exit frame, and a 2nd entrance / exit part frame, and a entrance / exit top part.

  According to the safety fence of the escalator having the above configuration, installation and removal can be easily performed, and maintenance work can be performed without touching the eyes of the user.

It is a figure which shows the structure of the safety fence of the escalator which concerns on embodiment installed in the escalator. In the safety fence of the escalator which concerns on embodiment, it is a perspective view of a composite hood part. In the safety fence of the escalator which concerns on embodiment, it is a perspective view of an intermediate | middle top part. It is a figure which shows the folding state of the composite top part of FIG. It is a figure which shows the folding state of the intermediate | middle top part of FIG. In FIG. 1, it is a figure which shows the structure which a 2nd entrance / exit frame and a hoistway frame are supported by the outer deck of an escalator, and can roll. It is a figure which shows the safety fence of the escalator comprised by connecting two composite hood parts about the escalator of a short hoistway. It is a figure which shows the safety fence of the escalator comprised by connecting two entrance / exit hood parts and one intermediate | middle hood part about the escalator of a short hoistway. It is a figure which shows the safety fence of the escalator comprised by connecting two composite hood parts and two middle hood parts about the escalator of a long hoistway.

  Embodiments according to the present invention will be described below in detail with reference to the drawings. The number, shape, dimensions, material, and the like of the bellows structure described below are examples for explanation, and can be appropriately changed according to the specifications of the safety fence of the escalator. Below, the same code | symbol is attached | subjected to the same element in all the drawings, and the overlapping description is abbreviate | omitted.

  FIG. 1 is a diagram showing an escalator maintenance work safety fence 30 installed on the escalator 10. Hereinafter, unless otherwise specified, the escalator maintenance work safety fence 30 is referred to as a safety fence 30.

  The escalator 10 is a user transportation means provided between the upper floor 6 and the lower floor 8 in order to facilitate the movement of the user between different floors in the building 4 such as a store having a plurality of floors. The escalator 10 inclines between the upper floor 6 and the lower floor 8 with a passenger on a plurality of steps 12 connected to the endless circulation track. On both sides of the step 12, a balustrade 16 that supports the moving handrail 14 is provided on a skirt guard (not shown) and an inner deck that is an upper surface thereof. The moving handrail 14 is a handrail that moves on the balustrade 16 in accordance with the movement of the step 12 and is gripped by the user for safety. Hereinafter, the moving handrail 14 is referred to as a handrail 14 unless otherwise specified. A portion opposite to the inner deck across the balustrade 16 is an outer deck 18. The balustrade 16 is a transparent resin plate member erected on the upper surfaces of the inner deck and the outer deck 18. This is an illustrative example, and the balustrade 16 may be formed of an opaque plate material.

  FIG. 1 shows a longitudinal direction, a vertical direction, and a horizontal direction as three orthogonal directions. The longitudinal direction is the direction in which the escalator 10 extends in the building 4, and is the traveling direction of the steps 12 when the escalator 10 is in operation. When distinguishing both sides in the longitudinal direction, the direction toward the upper floor 6 is referred to as one side, and the direction toward the lower floor 8 is referred to as the other side. The vertical direction is the vertical direction of the building 4, the direction on the upper floor 6 side is called the upper side, and the direction on the lower floor 8 side is called the lower side. The left-right direction is the direction connecting the two balustrades 16 in the escalator 10, and when looking from the upper floor 6 to the lower floor 8, the right balustrade 16 side direction is the right direction, and the left balustrade 16 side direction is the left direction. It is. The escalator 10 in FIG. 1 is a side view seen from the right direction.

  In FIG. 1, along the longitudinal direction in the escalator 10, the division of the entrance / exit 20 of the upper floor 6, the entrance / exit 22 of the lower floor 8, and the hoistway 24 between the entrance / exit 20 and the entrance / exit 22 is shown. . The building 4 is provided with a truss 26 on the lower side of the step 12 where an endless circulation track in the escalator 10, a drive device for the endless track of the step 12, a drive device for the handrail 14, and the like are provided. The entrances 20 and 22 are the periphery of a flat floor region where metal plates 21 and 23 are provided that cover the manhole where the maintenance worker gets down to the truss 26. The metal plates 21 and 23 are working lids, but also serve to indicate landing zones for users. The hoistway 24 is a skew region along the traveling direction of the step 12 when the escalator 10 is in operation.

  The safety fence 30 includes a composite hood 40 for the upper floor 6 disposed at the entrance 20 of the upper floor 6, a composite hood 41 for the lower floor 8 disposed at the entrance 22 of the lower floor 8, and a composite An intermediate hood portion 70 disposed between the hood portion 40 and the composite hood portion 41 is included. The composite hood part 40, the composite hood part 41, and the intermediate hood part 70 have a stretchable bellows structure that covers the left and right side surfaces and the upper side of the entrance / exit 20, the hoistway 24, and the entrance 22 of the escalator 10. The bellows structure is a structure that can be folded and stretched in an axial direction. Focusing on the property of expanding and contracting while bending, it is sometimes called an accordion structure. In the composite hood part 40, the composite hood part 41, and the intermediate hood part 70, a flameproof hood that covers the left and right side surfaces and the upper part is formed with a fold of a mountain valley, and can take a folded state and an extended state. Can bend along the direction.

  The composite hood section 40 covers the entrance / exit hood 42 that covers both the left and right sides and the upper surface of the entrance / exit 20, and the elevating / lowering that covers the left and right sides and the upper surface above the handrail 14 of the hoistway 24 connected to the entrance / exit 20. It includes a road hood 44 and an entrance curtain 46 provided at one end. The composite hood part 41 is an elevator that covers the left and right side surfaces and the upper surface above the handrail 14 of the hoistway 24 connected to the entrance 22 and the entrance hood 43 that covers the left and right side surfaces and the upper surface of the entrance 22. A road hood 45 and an entrance curtain 47 provided at the other end are included. Thus, the composite hood part 40 and the composite hood part 41 have the same structure except that the arrangement directions are opposite to each other with respect to the hoistway 24. Therefore, the structure of the composite hood part 40 will be mainly described below.

  The intermediate hood part 70 has a hoistway hood 72 that covers both the left and right side surfaces and the upper surface above the handrail 14 of the hoistway 24, similarly to the hoistway hoods 44 and 45 of the composite hood parts 40 and 41. One side is detachably connected to the composite hood part 40, and the other side is detachably connected to the composite hood part 41.

  FIG. 2 shows a perspective view of the composite hood portion 40 having a bellows structure in an extended state, and FIG. 3 shows a perspective view of the intermediate hood portion 70 in an extended state. Moreover, the side view of the folded state of the composite hood part 40 is shown in FIG. 4, and the side view of the folded state of the intermediate hood part 70 is shown in FIG. Each of these drawings is a diagram showing a state before the safety fence 30 is arranged on the escalator 10.

  The composite hood 40 shown in FIG. 2 includes three three-way frames, a first entrance / exit frame 50, a second entrance / exit frame 51, and a hoistway frame 60, an entrance / exit hood 42, and a hoistway hood 44. Including Mikata hood.

  The first entrance / exit frame 50 connects the left and right vertical frames 52 and 54 having a predetermined working height H0 measured from the floor surface of the upper floor 6 and the upper portions of the left and right vertical frames 52 and 54. A three-way frame having a frame 56. The predetermined working height H0 is set to a height sufficient for the maximum height of the maintenance worker. The two rollers rotatably provided at the lower end portions of the left and right vertical frames 52 and 54 are floor surface rolling rollers 58 that can roll on the floor surface when the composite hood portion 40 is transported. . The second entrance / exit frame 51 is a three-way frame having the same structure as the first entrance / exit frame 50, and rollers are provided on the lower ends of the left and right vertical frames, respectively. 59 is provided.

  The hoistway frame body 60 is a three-way frame having a left and right vertical frame and an upper frame that connects upper portions of the left and right vertical frames. The first entrance / exit frame body 50 and the second entrance / exit frame body 51 are high Is different. The second height H2 along the vertical direction of the vertical frame of the hoistway frame body 60 is a height obtained by subtracting the height H1 from the step 12 to the upper surface of the handrail 14 from the predetermined work height H0. That is, H2 = (H0−H1). A support portion supported by the handrail 14 is provided at the lower end of the left and right vertical frames of the hoistway frame 60. The support portion may be a bolt or the like fixed to the handrail 14, but here, two handrail rolling rollers 62 capable of rolling on the upper surface of the handrail 14 are used. The handrail rolling roller 62 may be the same as the floor surface rolling rollers 58 and 59.

  The first entrance / exit frame 50, the second entrance / exit frame 51, and the hoistway frame 60 are formed by molding a material having an appropriate strength into a predetermined shape. As a material, a metal angle material can be used, and a plurality of angle materials can be combined and used as a three-sided frame.

  The entrance / exit hood 42 is a three-way hood that connects the first entrance / exit frame 50 and the second entrance / exit frame 51 and covers the left and right side surfaces and the upper side of the entrance 20. The entrance / exit hood 42 uses an opaque sheet material formed in a bellows shape by repeating a peak portion and a valley portion in advance, and the direction in which the peak portion and the valley portion extend is defined as the left-right direction of the sheet material. One of the parts is attached to the first entrance / exit frame 50 and the other is attached to the second entrance / exit frame 51. Attachment to the 1st entrance / exit frame 50 is performed along the vertical frames 52 and 54 and the upper frame 56 which comprise a three-way frame. Similarly, the attachment to the second entrance / exit frame 51 is performed along the two vertical frames and the upper frame constituting the three-way frame. Thereby, the entrance / exit hood 42 becomes a three-way hood that covers both side surfaces and the upper surface between the first entrance / exit frame 51 and the second entrance / exit frame 51 that are two three-way frames.

  For the entrance / exit hood 42, an appropriate three-way support may be provided between the first entrance / exit frame 50 and the second entrance / exit frame 51. For example, the number of three-way supports corresponding to the number of peaks is prepared, and each peak is attached to each three-way support. This facilitates the formation of a bellows-like shape in which the peaks and valleys repeat. As the three-way support, a metal wire having an appropriate thickness and mechanical strength formed into a U shape can be used.

  The hoistway hood 44 connects the second entrance / exit frame 51 and the hoistway frame 60, and covers the left and right side surfaces of the upper part of the hoistway 24 connected to the entrance 20 and the upper side. It is a hood. The hoistway top 44 has a shorter vertical frame as a three-way frame than the entrance / exit top 42. Except for this point, the contents described in the entrance / exit hood 42 can be applied as they are. That is, using an opaque sheet material formed in a bellows shape by repeating a peak portion and a valley portion in advance, the direction in which the peak portion and the valley portion extend is the left-right direction of the sheet material, and one of the left and right end portions of the sheet material is The other is attached to the second entrance / exit frame 51 and the hoistway frame 60. Attachment to the 2nd entrance / exit frame 51 is performed along the two vertical frames and the upper frame 56 which comprise a three-way frame. Similarly, attachment to the hoistway frame body 60 is performed along the two vertical frames and the upper frame constituting the three-way frame. Accordingly, the hoistway top 44 is located between the second entrance / exit frame body 51 and the hoistway frame body 60, which are two three-way frames, above the handrail 14 of the hoistway 24 connected to the entrance / exit 20. It is a three-way hood that covers both the left and right sides and the upper side. Similarly to the entrance / exit hood 42, an appropriate three-way support may be provided between the second entrance / exit frame 51 and the hoistway frame 60 for the hoistway hood 44. This facilitates the formation of a bellows-like shape in which the peaks and valleys repeat.

  As the entrance / exit hood 42 and the hoistway hood 44, a safety sheet made of a material suitable for the safety fence 30 and formed into a predetermined bellows shape is used. As the disaster prevention sheet, an opaque sheet is used so that a space surrounded by the entrance / exit hood 42 and the hoistway hood 44, which are three-way hoods, cannot be seen from the outside.

  The entrance curtain 46 is an openable / closable hanging sheet provided in an opening as a three-way frame of the first entrance / exit frame 50. When the maintenance worker enters the work space surrounded by the entrance / exit hood 42, the entrance curtain 46 is rolled, and after entering, the entrance opening is closed by the weight of the entrance curtain 46. As the entrance curtain 46, an opaque disaster prevention sheet used for the entrance / exit hood 42 and the hoistway hood 44 can be formed into a predetermined shape.

  The intermediate hood portion 70 shown in FIG. 3 includes two three-way frames, a first hoistway frame body 80 and a second hoistway frame body 81, and two three-way hoods such as a hoistway hood 72.

  The first hoistway frame body 80 is a three-way frame having left and right vertical frames 82 and 84 and an upper frame 86 connecting the upper portions of the left and right vertical frames 82 and 84, and the vertical frame 82 of the first hoistway frame body 80. , 84 along the vertical direction is the same as the second height H2 of the hoistway frame 60 in the composite hood section 40. A handrail rolling roller 88 is provided as a support portion supported by the handrail 14 at the lower ends of the left and right vertical frames 82 and 84 of the first hoistway frame body 80. The handrail rolling roller 88 may be the same as the handrail rolling roller 62 provided on the hoistway frame 60 in the composite hood 40. The second hoistway frame body 81 is a three-way frame having the same structure as the first hoistway frame body 80, and a handrail rolling roller 89 is provided at each of the lower ends of the left and right vertical frames. As described above, the first hoistway frame body 80 and the second hoistway frame body 81 are three-way frames having the same structure as the hoistway frame body 60 of the composite hood section 40. Description is omitted.

  The hoistway hood 72 is a three-way hood that connects the first hoistway frame body 80 and the second hoistway frame body 81 and covers the left and right side surfaces of the hoistway 24 above the handrail 14 and the upper side. The hoistway hood 72 is a bellows hood having the same structure except that the length of the hoistway hood 44 of the composite hood portion 40 is different from that of the hoistway hood 44. Therefore, the seat material, the first hoistway frame body 80 and the second hoistway frame Further explanation is omitted, including attachment to the road frame 81, three-way support and the like.

  FIG. 4 is a side view of the composite hood 40 in a folded state. The folded state is a state in which the bellows structure in the extended state of the entrance / exit hood 42 and the hoistway hood 44 in FIG. 2 is contracted in the longitudinal direction. In the extended state of FIG. 2, the space between adjacent ridges spreads, but in the folded state of FIG. 4, the adjacent ridges approach and become almost in contact with each other. Since the folded bellows structure returns to the extension direction as it is, the fixing member 68 is spanned between the two locking portions 64 and 66 provided in the first entrance / exit frame body 50 and the hoistway frame body 60, Keep the folded state.

  FIG. 5 is a side view of the intermediate hood portion 70 in a folded state. Since the contents in the folded state are the same as the contents described in the composite hood part 40, further explanation is omitted. In the intermediate hood part 70, the fixing member 78 is spanned between the two locking parts 74 and 76 provided in the first hoistway frame body 80 and the second hoistway frame body 81, and the folded state is maintained. .

  As shown in FIGS. 4 and 5, in the folded state, the lengths of the composite hood portion 40 and the intermediate hood portion 70 along the longitudinal direction are shortened compared to the extended state. The composite hood section 40 includes four floor surface rolling rollers 58 and 59, and the intermediate hood section 70 includes four handrail rolling rollers 88 and 89. By using these rolling rollers, the composite hood portion 40, the composite hood portion 41 having the same structure as the composite hood portion 40, and the intermediate hood portion 70 can be easily transported to a predetermined place while being folded. .

  The arrangement of the composite hood 40 shown in FIG. 2, the composite hood 41 having the same structure, and the intermediate hood 70 shown in FIG. 3 on the escalator 10 is performed in the following procedure. In the following, it is assumed that the maintenance work is performed by a plurality of maintenance workers.

  The maintenance worker carries the folded composite hood part 40 and the folded intermediate hood part 70 to the upper floor 6 of the escalator 10 performing maintenance work, and then folds the composite hood part to the lower floor 8. Transport the hood 41. The intermediate hood 70 may be transported to the lower floor 8. The composite hood portions 40 and 41 are transported on the floor surface of the building 4 using the floor rolling rollers 58 and 59. The intermediate hood portion 70 may be transported on a carriage or the like, but can be moved on the floor surface of the building 4 using the handrail rolling rollers 88 and 89 for floor surface rolling.

  Next, the maintenance worker arranges on the lower floor 8 such that the entrance curtain 47 of the composite hood 41 faces the other side in the longitudinal direction of the escalator 10 and the hoistway hood 45 faces the hoistway 24 side. Then, the positions of the two vertical frames of the composite hood part 41 are adjusted so as to be in contact with the other end of the outer deck 18. Due to the structure of the escalator 10, it may be as close as possible to the other end of the outer deck 18. Next, the fixed member 68 holding the folded state is removed, and the handrail rolling roller 62 provided on the hoistway frame body 60 is placed on the upper surface of the handrail 14, and the hoistway top 45 is placed on the upper floor 6 side. To stretch. In this state, the position of the composite hood 41 is fixed to the entrance 22. When the floor rolling rollers 58 and 59 are provided with a lock mechanism, the lock mechanism is locked. Alternatively, the vertical frame may be fixed to the outer deck 18 using an appropriate fixing tool.

  Next, the maintenance worker goes up the step 12 of the escalator 10 and goes to the upper floor 6. Then, the handrail rolling rollers 88 and 89 are placed on the handrail 14 of the escalator 10 with the second hoistway frame 81 facing the lower floor 8 side of the folded intermediate hood 70. In this state, while preventing the handrail rolling rollers 88 and 89 from coming off from the top of the handrail 14, the top of the handrail 14 is moved toward the lower floor 8, and the composite hood 41 that is already on the handrail 14. The second hoistway frame body 81 of the intermediate hood part 70 is aligned with the hoistway frame body 60. Then, the second hoistway frame body 81 of the intermediate hood part 70 is firmly fixed to the hoistway frame body 60 of the composite hood part 41. These operations are performed while a maintenance worker moves on the step 12 of the escalator 10, and the second hoistway frame body 81 of the intermediate hood part 70 and the hoistway frame body 60 of the composite hood part 41 are also fixed. From the 12th side. As a fixing method, the vertical frame of the hoistway frame body 60 and the vertical frame of the second hoistway frame body 81 can be bolted using an appropriate connector. Instead of this, an iron piece may be attached to one of the vertical frame of the hoistway frame body 60 and the vertical frame of the second hoistway frame body 81, and a magnet may be attached to the other, and may be fixed by the attractive force of the magnet.

  Next, the maintenance worker sets the composite hood part 40 on the upper floor 6. The contents are the same as those performed for the composite hood portion 41 in the lower floor 8, but here, the entrance curtain 46 faces one side of the escalator 10 in the longitudinal direction of the folded composite hood portion 40. It arrange | positions so that the hoistway top 44 may face the hoistway 24 side. Then, the positions of the two vertical frames of the composite hood part 40 are adjusted so as to be in contact with the other end of the outer deck 18. Then, the fixing member 68 holding the folded state is removed, the handrail rolling roller 62 provided in the hoistway frame body 60 is placed on the upper surface of the handrail 14, and the hoistway top 44 is placed on the lower floor 8 side. Extend toward. In this state, the position of the composite top 40 is fixed to the entrance 20.

  Next, with respect to the intermediate hood portion 70 arranged on the handrail 14 in the folded state, the fixing member 78 holding the folded state is removed, and the hoistway hood 72 is extended toward the upper floor 6 side. . Then, the first hoistway frame body 80 of the intermediate hood part 70 and the hoistway frame body 60 of the composite hood part 40 face each other, and these are firmly fixed using appropriate fixing means.

  In this way, as shown in FIG. 1, the safety fence 30 to which the composite hood part 40 for the lower floor, the intermediate hood part 70, and the composite hood part 41 for the lower floor are connected is arranged on the escalator 10. Therefore, the maintenance worker crawls the entrance screens 46 and 47 and uses the space surrounded by the bellows-structured hood as a work space without worrying about the users of the store outside the escalator 10 or the like. It can be performed. The bellows-structured hood is made of an opaque flameproof sheet, but the balustrade 16 is made of a transparent resin plate or the like, so that external light enters the work space through the balustrade 16 so that work with appropriate brightness can be performed. It becomes the environment. If necessary, internal lighting may be used.

  When the maintenance work is finished, the upper part of the composite hood part 40 for the upper floor, the intermediate hood part 70, and the lower part of the composite hood part 41 are removed, and the position of the composite hood part 40 at the entrance 20 is fixed. The position of the composite hood 41 at the entrance 22 is removed. In this way, the safety fence 30 is divided into three bellows hood parts, a composite hood part 40, an intermediate hood part 70, and a composite hood part 41, each using a fixing member 68 or a fixing member 78. Return to the folded state. The folded composite hood part 40, the intermediate hood part 70, and the composite hood part 41 are carried out from the upper floor 6 and the lower floor 8 by maintenance workers, respectively.

  In the above, since the handrail rolling rollers 62, 88, and 89 roll on the handrail 14, maintenance work and the like regarding the handrail 14 are difficult. The safety fence 31 shown in FIG. 6 uses a hoistway frame body 100 having a long vertical frame instead of the hoistway frame body 60 of the composite hood parts 40 and 41, and a first hoistway frame of the intermediate hood part 70. Instead of the body 80 and the second hoistway frame body 81, a first hoistway frame body 104 and a second hoistway frame body 105 having a long vertical frame are used. An outer deck rolling roller 102 is provided at the tip of the hoistway frame body 100, and outer deck rolling rollers 106 and 107 are provided at the tips of the first hoistway frame body 104 and the second hoistway frame body 105, respectively. Is provided. The outer deck rolling rollers 102, 106, and 107 roll on the upper surface of the outer deck 18. In the safety fence 31, since there is nothing rolling on the handrail 14, the maintenance work regarding the handrail 14 becomes easy.

  The safety fence 30 is composed of a total of three bellows hood portions, which are a total of two composite hood portions 40 and 41 and one intermediate hood portion 70 in accordance with the length of the escalator 10 in the longitudinal direction. 7 and 8 are diagrams showing the safety fences 32 and 33 for the escalator 110 having a short length in the longitudinal direction. The safety fence 32 shown in FIG. 7 is an example of a total of two bellows top parts including two composite top parts 112 and 113. The length of the hoistway hoods 114 and 115 in the composite hood portions 112 and 113 is set in accordance with the length of the escalator 110 in the longitudinal direction. The safety fence 32 can reduce the number of bellows hood parts as compared with the safety fence 30.

  The safety fence 33 in FIG. 8 is an example constituted by a total of three bellows hood parts including two entrance / exit hood parts 120 and 121 and one intermediate hood part 122. The entrance / exit hood parts 120 and 121 are simply bellows hood parts having only the entrance / exit hoods 42 and 43 without the hoistway top 44 in the composite hood parts 40 and 41. Accordingly, the length of the hoistway hood 124 of the intermediate hood 122 is increased. Since the entrance / exit hood portions 120 and 121 have a simple configuration as compared with the composite hood portions 40 and 41, the safety fence 33 has a simple configuration as a whole.

  FIG. 9 is a diagram showing the safety fence 34 for the escalator 112 having a long length in the longitudinal direction. For the escalator 112 having a long length in the longitudinal direction, it is possible to correspond to the length of the escalator 112 by using a plurality of intermediate hood portions 70 described in FIG. The safety fence 34 in FIG. 9 is a diagram illustrating an example in which two composite hood portions 40 and 41 and two intermediate hood portions 70 are configured to be a total of four bellows hood portions. The number of intermediate hood portions 70 can be appropriately changed according to the length of the escalator 10.

  The long escalator 112 can be dealt with by using a plurality of intermediate hood portions 122 using the entrance / exit hood portions 120 and 121 described in FIG. Further, the outer deck rolling rollers 102, 106, and 107 described in FIG. 6 can be applied to the safety fences 32, 33, and 34 described above.

  6 upper floor, 8 lower floor, 10, 110, 112 escalator, 12 steps, 14 (moving) handrail, 16 balustrade, 18 outer deck, 20, 22 boarding gate, 21, 23 metal plate, 24 hoistway, 26 truss, 30, 31, 32, 33, 34 (Escalator maintenance work) Safety fence, 40, 41, 112, 113 Combined hood, 42, 43 Entry / exit hood, 44, 45, 72, 114, 115, 124 Hoistway hood , 46, 47 Entrance curtain, 50, 51 Entrance / exit frame, 52, 54, 82, 84 Vertical frame, 56, 86 Upper frame, 58, 59 Rolling roller for floor surface, 60, 100 Hoistway frame, 62, 88, 89 Rolling roller for handrail rolling, 64, 66, 74, 76 Locking portion, 68, 78 Fixing member, 70, 122 Intermediate hood portion, 80, 104 First hoistway frame, 81, 105 Second lifting Frame, 102,106,107 outer deck rolling for roller, 120, 121 entrance hood part.

Claims (9)

The escalator's upper floor entrance / exit, the lower floor entrance / exit, and the left and right side surfaces of the hoistway connecting the upper floor entrance / exit and the lower floor entrance / exit and the upper part of the bellows structure,
An escalator maintenance work safety fence that can be divided into at least two transportable bellows hood portions, and each of the divided bellows hood portions can be detachably connected to the other bellows hood portions. Provided at each of the upper floor entrance and the lower floor entrance,
Left and right vertical frames having a predetermined working height measured from the floor, and a first entrance / exit frame having an upper frame connecting the upper portions of the left and right vertical frames;
A second entrance / exit frame having the same structure as the first entrance / exit frame,
A hoistway frame having left and right vertical frames having a second height obtained by subtracting the height from the step to the upper surface of the handrail from the predetermined working height, and an upper frame connecting the upper portions of the left and right vertical frames Body,
An entrance hood that connects between the first entrance / exit frame and the second entrance / exit frame and covers the left and right side surfaces of the entrance / exit and the upper side;
A hoistway hood that connects the second entrance / exit frame body and the hoistway frame body and covers the left and right side surfaces of the upper part of the hoistway connected to the entrance / exit and the upper side;
An entrance curtain provided on the first entrance / exit frame and capable of entering / exiting a work space surrounded by the entrance / exit hood and the hoistway top;
The maintenance work safety fence of the escalator of Claim 1 provided with the composite hood part containing this.   The escalator maintenance work safety fence according to claim 2, wherein the left and right vertical frames of the hoistway frame have handrail rolling rollers.   The escalator maintenance work safety fence according to claim 2, wherein the left and right vertical frames of the hoistway frame body have outer deck rolling rollers. One or more intermediate hoods disposed between the composite hood for the upper floor and the composite hood for the lower floor,
Left and right vertical frames having a second height obtained by subtracting the height from the step to the upper surface of the handrail from the predetermined working height, and an upper frame connecting the upper portions of the left and right vertical frames. 1 hoistway frame,
A second hoistway frame having the same structure as the first hoistway frame;
A hoistway hood that connects the first hoistway frame body and the second hoistway frame body and covers the left and right side surfaces of the hoistway above the handrail and the upper side; and
The escalator maintenance work safety fence according to claim 2, further comprising at least one intermediate hood including An entrance / exit hood part for an upper floor having an entrance / exit hood provided at the entrance / exit of the upper floor and covering the entrance / exit of the upper floor,
A lower floor entrance / exit hood part having an entrance / exit hood provided at the lower floor entrance / exit and covering the lower floor entrance / exit,
One or more intermediate hood sections disposed between the entrance floor hood section for the upper floor and the entrance hood section for the lower floor;
With
The entrance / exit hood for the upper floor and the entrance / exit hood for the lower floor are respectively
Left and right vertical frames having a predetermined working height measured from the floor, and a first entrance / exit frame having an upper frame connecting the upper portions of the left and right vertical frames;
A second entrance / exit frame having the same structure as the first entrance / exit frame,
An entrance hood that connects between the first entrance / exit frame and the second entrance / exit frame and covers the left and right side surfaces of the entrance / exit and the upper side;
An entrance curtain provided in the first entrance / exit frame and capable of entering and exiting a work space surrounded by the entrance / exit hood;
Including
The intermediate hood part is
A first elevating unit having left and right vertical frames having a second height obtained by subtracting a height from the step to the upper surface of the handrail from the predetermined working height, and an upper frame connecting the upper portions of the left and right vertical frames. A road frame,
A second hoistway frame having the same structure as the first hoistway frame;
A hoistway hood that connects the first hoistway frame body and the second hoistway frame body and covers the left and right side surfaces of the hoistway above the handrail and the upper side; and
The maintenance work safety fence of the escalator of Claim 1 containing this.   The escalator maintenance work safety fence according to claim 5 or 6, wherein the left and right vertical frames of each of the first hoistway frame body and the second hoistway frame body have rollers for handrail rolling.   The escalator maintenance work safety fence according to claim 5 or 6, wherein the left and right vertical frames of each of the first hoistway frame body and the second hoistway frame body have outer deck rolling rollers.   The escalator maintenance work safety fence according to claim 2 or 6, wherein the first entrance / exit frame and the second entrance / exit frame have a rolling roller for floor surface rolling.

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