JP4245315B2 - Moving scaffold for elevator installation and elevator installation method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a moving scaffold used for elevator installation work, and more particularly to a moving scaffold of a type that is automatically fixed to a guide rail when engaged with a bracket that is attached to a wall of a hoistway.
[0002]
[Prior art]
Conventionally, when installing an elevator on a hoistway provided in a building, using a hoisting machine provided in a machine room above the hoistway, the main car frame and floor are lifted and lowered as a work scaffold, Guide rails, landing doorway devices, hoistway equipment, wiring, etc. were installed in sequence.
[0003]
However, in a machine room-less elevator, which has been widely spread in recent years, there is no machine room above the hoistway, so that it is not possible to use an installation method using a main hoist.
Therefore, the lifting platform is raised inside the hoistway and the moving scaffold is lifted, and the moving scaffold is supported from below by the steel material passed between the beams of the building, or the fixing device provided on the moving scaffold itself is protruded. An installation method has been used in which a moving scaffold is fixed by engaging with a slab.
[0004]
[Problems to be solved by the invention]
However, the work of supporting the moving scaffold through steel materials between the beams of the building or the work of fixing the moving scaffold to the slab by pushing out the fixing device is extremely complicated and requires a lot of labor to raise and fix the moving scaffold I was trying.
[0005]
In addition, because the steel material that supports the moving scaffold is passed between the beams of the building and the fixing device protruding from the moving scaffold is engaged with the slab of the building, the wall around the hoistway cannot be provided, and the building body There was a problem in the construction.
Further, such a construction method could not be used in a concrete structure building.
[0006]
Accordingly, an object of the present invention is to eliminate the problems of the prior art described above, and can be used regardless of the structure of the building, and the elevator installation that can greatly reduce the labor required for fixing in the hoistway. It is to provide a moving scaffold for an elevator and an elevator installation method using the same.
[0007]
[Means for Solving the Problems]
The moving scaffold for elevator installation of the present invention that solves the above problems is as follows.
A scaffold body that can be raised and lowered by a lifting machine provided inside the hoistway;
A scaffold fixing mechanism that engages with a guide rail attached to a wall surface of the hoistway to fix the scaffold main body so as not to be lowered;
An operating mechanism that engages the guide rail by operating the scaffold fixing mechanism when the guide rail is engaged with a bracket attached to the wall surface ;
The operating mechanism is:
A swing support shaft extending in a horizontal direction parallel to the wall surface in a long hole penetrating the scaffold main body and extending in the vertical direction;
A seesaw-like rocking member that is rockably supported by the rocking spindle;
An engaging portion provided at one swinging end of the swinging member and engageable with the bracket;
An urging weight provided at the other oscillating end of the oscillating member for constantly urging the oscillating member so that the engaging portion oscillates upward;
When the swinging member tries to swing in a direction in which the engaging portion is displaced upward from a swinging position engaged with the bracket from above, the swinging member abuts on the scaffold body and swings the swinging member. A swing restricting portion provided on the swing member for restricting;
Connecting means for connecting the support shaft and the wedge-shaped member,
When the engaging portion of the swing member is engaged with the bracket while the scaffold body is lowered in the hoistway, the swing support shaft is displaced upward in the elongated hole to pull up the connection means. Thus, the scaffold fixing mechanism is operated to fix the scaffold main body to the guide rail so as not to be lowered .
[0008]
That is, the moving scaffold for elevator installation of the present invention has a structure that is supported by guide rails attached to the wall surface of the hoistway, so that it can be used regardless of the structure of the building, and the wall of the hoistway after the elevator installation. It is possible to eliminate the work of returning the building work such as attaching.
In addition, since the scaffold fixing mechanism engages with the guide rail when the operating mechanism engages with the bracket that attaches the guide rail to the wall of the hoistway, the labor required to fix the moving scaffold within the hoistway is greatly increased. Can be reduced.
Furthermore, since the moving scaffold is supported by the guide rail attached to the wall surface of the hoistway, it is possible to prevent an operator from being placed on the moving scaffold when the moving scaffold is lifted and lowered using a lifting machine.
Thereby, since it is not necessary to take a high safety factor like the lifting machine used for raising and lowering the moving scaffold with the worker on board, the cost required for the lifting machine can be reduced.
[0009]
The elevator installation method of the present invention that solves the above problems uses the elevator installation moving scaffold according to claim 1,
Attaching a lower guide rail to the wall of the hoistway using a bracket;
Using a lifting machine provided in the hoistway to raise a moving scaffold on which no worker is riding,
Activating the scaffold fixing mechanism by engaging the operating mechanism with the bracket to fix the moving scaffold to the guide rail;
The operator who has transferred to the moving scaffold fixes the upper guide rail adjacent to the lower guide rail to the wall surface of the hoistway using a bracket,
It is characterized by having.
[0010]
That is, the elevator installation method of the present invention supports the moving scaffold by the guide rail attached to the wall surface of the hoistway.
As a result, work to support the moving scaffold through steel materials between the beams of the building in order to fix the moving scaffold in the hoistway, work to fix the moving scaffold to the slab of the building by protruding the fixing device provided in the moving scaffold, etc. Since it can be made unnecessary, not only can the labor required for fixing the moving scaffold in the hoistway be greatly reduced, but also the work of returning the building work such as attaching the hoistway wall after installing the elevator is eliminated. Can do.
Further, since the moving scaffold is supported by the guide rail attached to the wall surface of the hoistway, it is possible to prevent an operator from being placed on the moving scaffold when the moving scaffold is lifted and lowered using the lifting machine.
Thereby, since it is not necessary to take a high safety factor like the lifting machine used for raising and lowering the moving scaffold with the worker on board, the cost required for the lifting machine can be reduced.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, with reference to FIG. 1 thru | or FIG. 13, the moving scaffold for elevator installation which concerns on this invention, and one Embodiment of an elevator installation method using the same are demonstrated in detail.
In the following description, the direction in which the elevator holder and the car door open and close is referred to as the left-right direction, and the direction in which the passenger enters and exits the car is referred to as the front-rear direction.
Moreover, in the following description, the same code | symbol is used for the same part and the description is abbreviate | omitted.
[0012]
1 to 4 includes a pair of left and right car side guide rails 2L and 2R and a pair of front and rear weight side guide rails (not shown) attached to a wall surface 1a of a hoistway 1 provided in a building. It is used to attach the hall entrance / exit device 3 and electrical wiring every time.
The moving scaffold 100 includes a scaffold main body 10 constructed by combining the scaffold frames normally used at a construction site, and a pair of left and right scaffold fixing mechanisms 20 respectively disposed on the left and right sides of the scaffold main body 10. An operating mechanism 30 is provided.
[0013]
The scaffold main body 10 has upper and lower work floors 11 and 12, and the vertical distance between them operates the scaffold fixing mechanism 20 using a rail bracket that attaches the lower guide rail to the wall surface 1 a. When the scaffold body 10 is fixed, the interval is set such that a worker who gets on the upper work floor can fix the rail bracket for attaching the upper guide rail to the wall surface 1a.
Further, the base frame 13 provided at the lower end of the scaffold main body 10 is fixed with the metal fittings 14 for connecting the hanging rope 4, and the pair of left and right scaffold fixing mechanisms 20 and the operating mechanism 30 described above. Are fixed respectively.
Note that a ladder can be provided between the upper and lower work floors 11 and 12, and the size of the scaffold frame used for constructing the scaffold body 10 can be appropriately selected according to the dimensions of the hoistway 1.
[0014]
As shown in FIG. 5, the scaffold fixing mechanism 20 has a pair of left and right wedge-shaped members 21 </ b> L and 21 </ b> R that frictionally engage with both side surfaces of the car-side guide rail 2.
These wedge-shaped members 21L and 21R are connected to a cable 42 (connection means) to be described later via a link 22 on the back side in the figure, and when pulled up by this cable 42, guide to a pair of left and right inclined surfaces 23L and 23R. In close contact with both side surfaces of the car-side guide rail 2.
The pair of left and right wedge-shaped members 21L and 21R are frictionally engaged with both side surfaces of the car-side guide rail 2 when the weight of the scaffold body 10 is loaded from the pair of left and right inclined surfaces 23L and 23R. Secure to the car-side guide rail 2 so that it cannot descend.
In addition, the pair of left and right wedge-shaped members 21L and 21R are lowered by the weight of their own in a state where the weight of the scaffold body 10 is not loaded from the pair of left and right inclined surfaces 23L and 23R by the cable 42. The guide rail 2 is separated from both side surfaces.
5 is provided below the scaffold fixing mechanism 20 so as to guide the ascending / descending by engaging with the car-side guide rail 2 when the scaffold body 10 is raised and lowered inside the hoistway 1. 25.
[0015]
As shown in FIGS. 6 and 7, the operating mechanism 30 is provided integrally with the base frame 13 of the scaffold main body 10 and extends in the vertical direction to a pair of front and rear columns 31 f and 31 r and these columns 31 f and 31 r, respectively. It has a pair of front and rear long holes 32 that are provided so as to extend in the vertical direction parallel to each other, and a swing shaft 33 that extends horizontally in the front and rear directions in these long holes 32.
The swing shaft 33 is composed of a pipe 33a inserted between a pair of front and rear elongated holes 32, and a set 33b of bolts, nuts and washers for preventing and fixing the pipe 33a.
[0016]
A swinging member 34 is interposed between the pair of front and rear support columns 31f and 31r so as to be swingable by a swinging shaft 33 and extending in a seesaw shape in the left-right direction.
The swing member 34 is formed of a thick steel plate and is disposed so as to be along the inner wall surfaces of the pair of front and rear columns 31f and 31r, and the body portions 34f and 34r are integrated with each other. And an urging weight 35 connected to the.
The pair of front and rear main body portions 34f and 34r have a pair of front and rear engaging portions 34a that can engage with a bracket B that attaches the car-side guide rail 2 to the wall surface 1a of the hoistway 1 at one swing end. ing.
The pair of front and rear engaging portions 34a has a gap that can receive the guide rail 2 therebetween.
Further, the urging weight 35 fixed to the other oscillating end of the pair of front and rear body portions 34f and 34r always urges the oscillating member 34 in the direction in which the engaging portion 34a oscillates upward. Playing a role.
[0017]
Further, the pair of front and rear body portions 34f and 34r are integrally provided with a swing restricting portion 34b that can abut against the side surfaces of the pair of front and rear columns 31f and 31r.
As a result, the swinging member 34 moves further in the counterclockwise direction shown in the drawing from the state of extending horizontally in the left-right direction as indicated by the solid line in FIG. However, as shown by a two-dot chain line in FIG. 6, it can swing in the clockwise direction shown in the drawing until it is not in contact with the bracket B.
[0018]
In the normal state, the swing member 34 extends horizontally in the left-right direction as shown by the solid line in FIG. 6 due to the action of the biasing weight 35 and the swing restricting portion 34b.
Thereby, when the scaffold body 10 is lowered in the hoistway 1, the engaging portion 34 a provided at the tip of the swing member 34 is engaged with the rail bracket B from above.
Then, the swinging member 34 cannot swing further counterclockwise from the state shown by the solid line in FIG. 6, so that the swinging shaft 33 moves inside the elongated hole 32 as the scaffold body 10 descends. Will be displaced upward.
[0019]
On the other hand, when the scaffold main body 10 is raised in the up-and-down one path, the inclined surface 34c provided at the tip of the swing member 34 comes into contact with the rail bracket B from below and the swing member 34 is moved in the clockwise direction in the drawing. Therefore, the swinging member 34 and the rail bracket B are not engaged to prevent the scaffold main body 10 from being lifted.
[0020]
On the other hand, when the cable 41 (retracting means) connected to the urging weight 35 is pulled upward, the swinging member 34 can be swung to the retracted state indicated by a two-dot chain line in FIG.
Thereby, the scaffold body 10 can be freely lowered in the hoistway 1 while preventing the swinging member 34 from engaging with the rail bracket B.
[0021]
On the other hand, a cable 42 extending downward is connected to the swing shaft 33.
After the cable 42 is wound around the pulleys 43a, 43b, 43c, 43d as shown in FIG. 8, it is connected to the pair of left and right wedge-shaped members 21L, 21R via the link 22 as shown in FIG. It is connected.
[0022]
When the scaffold body 10 is raised inside the hoistway 1 as indicated by the upward arrow in FIG. 8, the inclined surface 34c provided at the tip of the swinging member 34 is formed on the rail bracket B from below as described above. Since the rocking member 34 is rocked by contact, the rocking member 34 and the rail bracket B are not engaged.
Further, a short cable 45 suspending a weight 44 is attached to a portion of the cable 42 extending in the vertical direction between the pulleys 43b and 43c via a metal fitting 46.
As a result, the pair of left and right wedge-shaped members 21L and 21R of the scaffold fixing mechanism 20 are lowered by their own weight without being pulled upward by the cable 42, and thus contact with both side surfaces of the car-side guide rail 2 to cause friction. There is no engagement.
[0023]
As shown in FIG. 9, when the scaffold body 10 further rises inside the hoistway 1 and the swinging member 34 reaches above the rail bracket B, the swinging member 34 includes the urging weight 35 and the swing restricting portion. It will be in the state extended horizontally by the effect | action of 34b.
[0024]
When the scaffold body 10 is lowered in such a state, the engaging portion 34a of the swing member 34 is engaged with the rail bracket B as shown in FIG.
Then, as described above, the rocking shaft 33 is displaced upward in the elongated hole 32 and the cable 42 is pulled up. Therefore, the pair of left and right wedge-shaped members 21L and 21R are also lifted and are in close contact with the side surface of the guide rail 2. To do.
Thereafter, when the scaffold body 10 is further lowered, the pair of left and right wedge-shaped members 21L and 21R are loaded with the weight of the scaffold body 10 from the pair of left and right inclined surfaces 23L and 23R. 21R firmly engages both sides of the car-side guide rail 2 to fix the scaffold body 10 to the car-side guide rail 2 so that it cannot be lowered.
[0025]
When the pair of right and left wedge-shaped members 21L and 21R are firmly frictionally engaged with both side surfaces of the car-side guide rail 2, if the scaffold body 10 is slightly raised using the lifting machine 7, the pair of left and right wedges Since the weight of the scaffold main body 10 is not loaded on the shaped members 21L and 21R, the anchoring of the scaffold main body 10 to the car-side guide rail 2 by the scaffold fixing mechanism 20 is released.
Next, when the scaffold main body 10 is further raised using the lifting machine 7, the engagement between the swing member 34 of the operating mechanism 30 and the rail bracket B is released, and the swing shaft 33 moves downward in the long hole 32. Since it is displaced, it can be automatically returned to the initial state shown in FIGS.
[0026]
Next, with reference to FIG. 12 and FIG. 13, the work procedure of the construction method which installs an elevator using the moving scaffold 100 mentioned above is demonstrated.
[0027]
In the elevator installation method of the present embodiment, in the first stage (S1) and the second stage (S2) of the work, tem plates are installed at the upper and lower parts of the hoistway, and guides are fitted to these tem plates. Install a lower swing used to center the rail.
[0028]
In the third stage (S3) to the fifth stage (S5), as shown in FIGS. 1 and 3, the first stage rail bracket B1 is attached to the wall surface 1a at the lower part of the hoistway 1 and the hoistway 1 The buffer beam 5 is installed on the bottom of the guide rail, and the lowermost guide rails 2L1 and 2R1 are installed thereon.
[0029]
In the sixth stage (S 6) and the seventh stage (S 7), as shown in FIG. 3, after assembling the fixed scaffold 6 on the bottom surface of the hoistway 1, the scaffold body 10 is placed on the fixed scaffold 6. assemble.
[0030]
In the eighth stage (S8), as shown in FIG. 3, an operator riding on the scaffold main body 10 attaches the second-stage rail bracket B2 to the wall surface 1a of the hoistway 1.
In the ninth stage (S9), the lowermost guide rails 2L1, 2R1 are centered and fixed.
[0031]
In the tenth step (S10), the rope 7a of the lifting machine 7 is attached to the ceiling hook of the hoistway 1, and the scaffold hanging jig for suspending the rope 4 for hanging the scaffold main body 10 in the eleventh step (S11). 8 is attached to the lifting machine 7.
[0032]
In the twelfth stage (S12), the scaffold fixing mechanism 20 and the operating mechanism 30 described above are attached to the scaffold body 10.
[0033]
In the thirteenth stage (S13), the moving scaffold 100 is lifted using the lifting machine 7 to a position where the swinging member 34 comes above the second stage rail bracket B2.
At this time, as shown in FIGS. 8 and 9, the swinging member 34 does not engage with the rail bracket B2 at the second stage, so that the moving scaffold 100 can be easily lifted.
When the swinging member 34 passes through the second stage rail bracket B2 as the moving scaffold 100 rises, the swing restricting portion 34b moves along with the pair of front and rear body portions 34f as the swinging member 34 swings. , 34r is hit.
Thereafter, when the worker who confirms the occurrence of the hitting sound slightly lowers the moving scaffold 100 by the lifting machine 7 in the 14th stage (S14), the swinging member 34 moves to the second stage as shown in FIG. Since the cable 42 is pulled up by engaging with the rail bracket B2, the scaffold fixing mechanism 20 operates and the movable scaffold 100 is supported by the lowermost guide rails 2L1 and 2R1.
[0034]
In addition, when raising / lowering the moving scaffold 100 using the lifting machine 7, a worker is not put on the scaffold main body 10. FIG.
Thereby, since it is not necessary to take a high safety factor like the lifting machine used for raising and lowering the moving scaffold with the worker on board, the cost of the lifting machine 7 used in this construction method can be reduced.
[0035]
The worker who has transferred to the moving scaffold 100 in the fifteenth step (S15) attaches the third rail bracket B3 to the wall surface 1a of the hoistway 1 in the sixteenth step (S16), and then in the seventeenth step (S17). The second guide rails 2L2 and 2R2 from the bottom are installed, and in the eighteenth stage (S18), the guide rails 2L2 and 2R2 are centered and fixed to the wall surface 1a of the hoistway 1, and in the nineteenth stage (S19) Retreat from the moving scaffold 100.
[0036]
Next, in the 20th stage (S20) to the 24th stage (S24), the same work as that performed in the 13th stage (S13) to the 18th stage (S18) described above is performed, and 3 Install the second guide rail.
Then, by repeating these series of operations, the guide rails can be built sequentially toward the upper part of the hoistway 1.
In addition, after completing the attachment of the pair of left and right car side guide rails 2L and 2R to the wall surface 1a of the hoistway 1, the weight side guide rail, the landing doorway device, and the equipment in the hoistway are used by using the lifting machine 7 and the moving scaffold 100. Install the wiring etc. in order.
[0037]
As mentioned above, although one embodiment of the moving scaffold for elevator installation and the elevator installation method according to the present invention has been described in detail, it is needless to say that the present invention is not limited to the above-described embodiment, and various modifications are possible. Yes.
For example, in the above-described embodiment, the lifting / lowering of the moving scaffold 100 is guided only by the guide shoe 25 attached to the lower end of the scaffold main body 10, but the wheel supported rotatably on the upper end of the scaffold main body 10 is the hoistway 1. By making it contact with the wall surface 1a, it is possible to hold the posture of the mobile scaffold 100 satisfactorily and guide the moving scaffold 100 up and down more reliably.
In the above-described embodiment, the rail bracket has a structure in which a pair of angle members are combined. Needless to say, a rail bracket having another structure can be used.
It goes without saying that the shape of the swing member 34 can be changed in accordance with the shape of the rail bracket.
[0038]
【The invention's effect】
As is clear from the above description, the elevator installation moving scaffold of the present invention is a structure that is supported by a guide rail attached to the wall surface of the hoistway, so that it can be used regardless of the structure of the building. It is possible to eliminate the return work of building work such as attaching the walls of the hoistway after installing the elevator.
In addition, since the scaffold fixing mechanism engages with the guide rail when the operating mechanism engages with the bracket that attaches the guide rail to the wall of the hoistway, the labor required to fix the moving scaffold within the hoistway is greatly increased. Can be reduced.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a method of using an elevator installation moving scaffold according to the present invention.
FIG. 2 is an enlarged perspective view of the elevator installation moving scaffold shown in FIG. 1;
FIG. 3 is a front view showing a state of being placed on a fixed scaffold provided at the bottom of the hoistway.
FIG. 4 is a side view showing a state of being placed on a fixed scaffold provided at the bottom of the hoistway.
FIG. 5 is an enlarged front view showing the scaffold fixing mechanism and guide means shown in FIG. 3;
6 is an enlarged side view showing the engaging member shown in FIG. 4. FIG.
7 is a plan view showing the engaging member shown in FIG. 5. FIG.
FIG. 8 is a side view for explaining the operation of the operation mechanism when raising the moving scaffold.
FIG. 9 is a side view for explaining the operation of the operation mechanism when the moving scaffold is lowered.
FIG. 10 is a side view for explaining the operation of the operation mechanism in a state where the moving scaffold is fixed.
FIG. 11 is a side view showing a moving scaffold fixed to a guide rail.
FIG. 12 is a flowchart showing a procedure of elevator installation work.
FIG. 13 is a flowchart showing a procedure of elevator installation work.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Conventional 2L, 2R Car side guide rail 3 Landing entrance / exit device 4 Suspension rope 5 Buffer beam 6 Fixed scaffold 7 Lifting machine 8 Scaffold suspension jig 10 Scaffolding bodies 11 and 12 Work floor 13 Base frame 14 Bracket 20 Scaffold fixing mechanism 21L , 21R Wedge member 22 Link 23L, 23R Inclined surface 25 Guide shoe 30 Actuating mechanism 31f, 31r Strut 32 Long hole 33 Oscillating shaft 34 Oscillating member 34a Engaging part 34b Oscillating regulating part 35 Energizing weight 41 Cable (retraction means)
42 Cable (connection means)
43 Pulley 44 Weight 45 Rope 46 Metal fitting 100 Moving scaffold

Claims (6)

A scaffold body that can be raised and lowered by a lifting machine provided inside the hoistway;
A scaffold fixing mechanism that engages with a guide rail attached to a wall surface of the hoistway to fix the scaffold main body so as not to be lowered;
An operating mechanism that engages the guide rail by operating the scaffold fixing mechanism when the guide rail is engaged with a bracket attached to the wall surface;
With
The operating mechanism is:
A swing support shaft extending in a horizontal direction parallel to the wall surface in a long hole penetrating the scaffold main body and extending in the vertical direction;
A seesaw-like rocking member that is rockably supported by the rocking spindle;
An engaging portion provided at one swinging end of the swinging member and engageable with the bracket;
An urging weight provided at the other oscillating end of the oscillating member for constantly urging the oscillating member so that the engaging portion oscillates upward;
When the swinging member tries to swing in a direction in which the engaging portion is displaced upward from a swinging position engaged with the bracket from above, the swinging member abuts on the scaffold body and swings the swinging member. A swing restricting portion provided on the swing member for restricting;
Connecting means for connecting the support shaft and the wedge-shaped member ,
When the engaging portion of the swing member is engaged with the bracket while the scaffold body is lowered in the hoistway, the swing support shaft is displaced upward in the elongated hole to pull up the connection means. The elevator fixing moving mechanism is configured to operate the scaffold fixing mechanism to fix the scaffold main body to the guide rail so as not to be lowered . The anchorage mechanism is to have a wedge-shaped member to frictionally engage the guide rail and the weight of the scaffold body is loaded,
The connection means is connected to the wedge-shaped member, and is configured to pull up the wedge-shaped member when the swing support shaft is displaced upward in the elongated hole. The moving scaffold for elevator installation described in 1. The connection means includes a cable extending between the swing support shaft and the wedge-shaped member, and a plurality of pulleys around which the cable is wound,
3. A weight is suspended from a portion of the cable that is wound around the pulley and extends in a vertical direction so that the wedge-shaped member can be lowered by its weight. The described moving scaffold for elevator installation. The actuating mechanism according to any one of claims 1 to 3, characterized in that said engaging portion further has a rocking member retraction means for retracting the swing member to swing position which does not engage the bracket A moving scaffold for elevator installation. A method of installing an elevator using the elevator installation moving scaffold according to any one of claims 1 to 3,
Attaching a lower guide rail to the wall of the hoistway using a bracket;
Raising the moving scaffold using a lifting machine provided in the hoistway;
Activating an anchoring mechanism provided on the moving scaffold by engaging an operating mechanism provided on the moving scaffold with the bracket, and fixing the moving scaffold to the guide rail;
A worker on the moving scaffold fixing a second guide rail adjacent above the guide rail to a wall surface of the hoistway with a bracket;
An elevator installation method characterized by comprising: 6. The elevator installation method according to claim 5, wherein an operator does not get on the moving scaffold when the moving scaffold is lifted and lowered using the lifting machine. 7.

Images