JP4132532B2 - Gondola equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a gondola apparatus, and more particularly to an improvement of a gondola apparatus that can move vertically and horizontally along an outer wall surface of a structure.
[0002]
[Prior art and its problems]
For example, there have been various proposals for a gondola device that can move vertically and horizontally next to the outer wall surface of a structure such as a mid-to-high-rise building, but many of them are configured so that a so-called single gondola can move. Has been.
[0003]
Therefore, when a single gondola is intended to cover a wide working range in the lateral direction in a stopped state, the gondola needs to be formed large in the lateral direction.
[0004]
However, considering the handling of the gondola, the size of the gondola is naturally limited, and therefore it cannot be formed in the horizontal direction without darkness.
[0005]
The present invention has been developed in view of the above-described circumstances, and the object of the present invention is that it can move vertically and horizontally along the outer wall surface of the structure, and in the lateral direction in a stopped state. An object of the present invention is to provide a gondola device that can cover a wide range of work and is optimal for expecting an improvement in its versatility.
[0006]
[Means for solving the problems]
In order to achieve the above-described object, the configuration of the gondola device according to the present invention basically includes a plurality of front pillars in which the gondola faces the outer wall surface of the structure with an appropriate interval, and the front pillars. A plurality of rear pillars which are respectively arranged behind the body and form a pair to allow a worker to be present between the front pillars, a lower end of the front pillars, and a lower end of the rear pillars And a scaffolding plate that is allowed to enter the operator, while the upper end of the suspension wire that holds the gondola is next to the rail that is distributed at the top end of the structure. In the gondola device that is movable in the lateral direction, the suspension wire is guided from the upper outside of the gondola to the inside of the gondola, and the rear column is provided via a wire diverting mechanism arranged at the upper end of the rear column. It hangs down next to the body and hangs Wire winding mechanism for raising and lowering the gondola winding of the lower end is wound around the hanging wire or at unwound in the will be Zaisa distribution below the scaffolding board.
[0007]
In the basic configuration described above, more specifically, the side portion of the gondola has a handrail frame that can swing or be separated, and the gondola adjacent to the handrail frame when it swings or is removed. It is assumed that the opening is allowed to allow the operator to move.
[0008]
In addition, while the front column is set linearly, the rear column sets the lower end side linearly and bends the upper end side to the front column body side to connect the upper end to the upper end of the front column body, In addition, it is assumed that the protective sheet is separably held between adjacent rear pillars.
[0009]
Further, a rail for connecting the upper ends of the suspension wires is separably held by an appropriate holding mechanism disposed on the rooftop portion of the structure, and the holding mechanism is detachably disposed on the rooftop of the structure.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on the illustrated embodiment. Even in the gondola apparatus according to the present invention, as shown in FIG. The gondola G facing the outer wall surface of the structure A with an appropriate interval is suspended by the suspension wire W suspended from the top end of the structure A, while the upper end of the suspension wire W is the top end of the structure A. It is possible to move in the lateral direction next to the rail R distributed in the.
[0011]
As shown in FIG. 1, a plurality of gondola G according to the present invention are connected in a lateral direction by appropriate connecting means (three in the figure), and the plurality of gondola G connected to each other are connected. It is said that the worker can move freely inside, and the worker can cover a wide working range in the lateral direction without moving the gondola G.
[0012]
In addition, in this gondola device, as indicated by solid arrows in FIG. 1, it is set so that it can move vertically and horizontally along the outer wall surface of the structure A while a plurality of gondola G is connected. The gondola G can be moved less frequently.
[0013]
Incidentally, in the figure, the structure A is a high-rise house that is a high-rise building. As will be described later, the gondola G is a handrail wall V1 of the veranda V (see FIG. 3) that forms the outer wall surface of the high-rise house. In this case, the fixing is performed in a so-called temporarily fixed state with an appropriate interval.
[0014]
On the other hand, the gondola G on the outer wall surface of the structure A in this gondola device is in the present invention. As shown in FIGS. 2 and 3, the front column 1, the rear column 2, the scaffold plate 3, It is said to have.
[0015]
The front column 1 is made of a metal mold such as aluminum so as to avoid an increase in weight more than necessary while having a predetermined mechanical strength, and an appropriate interval is provided on the outer wall surface of the structure A. It is set to have a plurality of facing and has been set up at appropriate intervals that are substantially equidistant.
[0016]
At this time, as shown in the figure, the front pillars 1 are formed in a straight line to form a so-called front surface of the gondola G, so that the noodles between the adjacent front pillars 1 are formed. While the handrail frame 4 set in the structure is installed and this handrail frame 4 is used as a safety fence for preventing a worker from falling, the strength of the so-called front surface in the gondola G formed by the front column body 1 group is provided. I am trying to improve.
[0017]
By the way, on the front face of the gondola G formed by a plurality of front pillars 1, curtains other than the above-described handrail frame 4 so that the operator can perform various operations on the outer wall surface of the structure A without delay. The so-called shield is not provided.
[0018]
In addition, the front column 1 has a fixing means for the outer wall surface of the structure A, that is, a fixing bracket 11, and the clamp portion 11 a in the fixing bracket 11 forms the outer wall surface of the structure A. It is assumed that the upper end of the handrail wall V1 of the veranda V to be held is gripped.
[0019]
By the way, in the illustrated case, the fixing means is connected to the front column 1 and is supposed to have a degree of freedom in the vertical direction in setting the connection position. Although not shown in the figure, it may be connected to the above-described handrail frame 4 so that it can have a degree of freedom in the lateral direction when setting the connection position.
[0020]
In addition, as long as this fixing means is what is called temporary fix | stop, of course, the thing of a different structure will be employ | adopted according to the state of the outer wall surface of the structure A, etc.
[0021]
With respect to the front column 1 described above, the rear column 2 is set to a plurality of pairs arranged behind the front column 1 and paired with each other. It is supposed to form a space that allows presence.
[0022]
At this time, the rear column body 2 is made of, for example, a metal mold material such as aluminum so as to avoid an increase in weight more than necessary while having a predetermined mechanical strength like the front column body 1. In the figure, the lower end side is set to be linear, while the upper end side is set to be bent toward the front column 1 and the upper end is connected to the upper end of the front column 1. .
[0023]
At this time, the head joint material 21 is disposed between the upper ends of the adjacent rear column bodies 2, and the handrail frame 4 described above is installed between the intermediate portions of the adjacent rear column bodies 2. As described above, the strength of the so-called back surface of the gondola G formed by a plurality of rear column bodies 2 is increased in the same manner as the front column body 1 described above.
[0024]
Baseboards 12 and 22 are connected to the lower end of the front column body 1 and the lower end of the rear column body 2 respectively, and the lower ends of the front column body 1 and the rear column body 2 are stiffened. Consideration is given in advance to prevent any tools or other objects that may be placed on the scaffold plate 3 from going outside, that is, falling.
[0025]
By the way, the rear column body 2 is disposed between the adjacent rear column bodies 2, that is, in the illustrated case, the protective sheet S disposed so as to cover the handrail frame 4 from the outside (see FIG. 2). ) Is detachably held.
[0026]
By the way, various configurations can be adopted for detachably holding the protective sheet S on the rear column 2. However, as shown in FIG. 4, first, the rear column 2 is made of a so-called mold material. Thus, both ends of the protective sheet S, that is, the left and right end portions S1 are provided with grooves 2a.
[0027]
At this time, the end portion S1 of the protective sheet S has a substantially circular cross-sectional shape, the so-called opening of the groove 2a in the rear column 2 is narrowed, and the protective sheet S fitted in the groove 2a is narrowed. Consideration is made so that the end S1 is not pulled out in the lateral direction.
[0028]
Therefore, when the opposite ends S1 of the protective sheet S are fitted into the grooves 2a of the adjacent rear column bodies 2, the protective sheet S is so-called stretched between the adjacent rear column bodies 2 so that the inside of the gondola G is covered. Protect from the outside.
[0029]
As a measure for holding the protective sheet S on the rear column 2, an arbitrary measure may be adopted. However, as shown in FIG. 3, as shown by a broken line in FIG. The upper and lower ends are inserted from a so-called entrance (not shown) prepared in the middle of the direction.
[0030]
Further, the protective sheet S has a so-called upper and lower parts in a sheet shape to prevent the penetration of rainwater, etc., while the so-called intermediate part is meshed to allow ventilation and improve the working environment in the gondola G. Ventilation is possible to achieve this.
[0031]
The scaffolding plate 3 is arranged between the lower end portion of the front column 1 and the lower end portion of the rear column 2 and is configured to allow entry of an operator. Thus, it is made of a metal mold such as aluminum so as to have a predetermined mechanical strength.
[0032]
By the way, in this gondola G, the above-mentioned front column 1 and the back column 2 are connected to the frame 5 arranged below the scaffold plate 3 through the above-mentioned baseboards 12 and 22. It is supposed to become.
[0033]
In other words, the scaffold plate 3 is arranged on the frame 5 in the illustrated case. At this time, the scaffold plate 3 is integrated with the frame 5 by welding, for example, in the illustrated case. However, in consideration of maintenance of the wire winding mechanism 6 and the like which will be described later, it may be detachably connected.
[0034]
By the way, the wire winding mechanism 6 held by the frame 5 has a winder 61 as a driving source that pulls the suspension wire W to wind it up or unwinds the suspension wire W. And a reel 62 around which the suspension wire W pulled by the winder 61 is wound.
[0035]
In this way, the wire winding mechanism 6 is held by the frame body 5 below the scaffold plate 3, so that it is possible for the operator to compare with the case where the wire take-up mechanism 6 is distributed on the scaffold plate 3. It will be advantageous in widening the place of residence.
[0036]
In addition, the present invention presupposes that a plurality of gondola G may be connected. Therefore, even from this, the wire winding mechanism 6 is disposed on the so-called side surface of the gondola G. It is better not to.
[0037]
On the other hand, the suspension wire W for suspending the gondola G is a pair of so-called left and right in the figure, so that the gondola G is stabilized when suspended.
[0038]
The pair of suspension wires W are guided from the upper outside of the gondola G to the inside of the gondola G and through the wire diverting mechanism 7 disposed at the upper end of the rear column 2 as shown in the figure. The lower column is suspended by the rear column 2 and the lower end is wound around the reel 62 constituting the wire winding mechanism 6 described above.
[0039]
By setting in this way, a space in which the suspension wire W guided inside the gondola G is to be occupied by the operator, that is, between the front column 1 and the rear column 2 is formed. The suspension wire W does not pass through the space in which the
[0040]
At this time, the wire diverting mechanism 7 has a first sheave 71 for turning the suspension wire W guided from a so-called upper center outside the gondola G toward the rear column 2 and the turned suspension wire W. It has a second sheave 72 that hangs down from the rear column 2.
[0041]
Therefore, in the case of using the wire diverting mechanism 7, since there are only two sheaves 71 and 72, there is an advantage that the configuration can be simplified and an effective diversion of the hanging wire W can be realized.
[0042]
Incidentally, in order to prevent the suspension wire W from passing through the space for the worker inside the gondola G, it can be considered that the suspension wire W is present outside the back surface of the gondola G. There is a disadvantage that W penetrates the rear column body 2 or the protective sheet S, and it can be said that it is not preferable.
[0043]
In the gondola G according to the present invention configured as described above, the following consideration is given.
[0044]
That is, first, the side surface portion of the gondola G is provided with appropriate connecting means for enabling connection between adjacent gondola G, but a bracket 23 constituting the connecting means is illustrated. By the way, the adjacent gondola G is connected to each other through a link member 24 that is connected to the frame 5 and is connected to the bracket 23 in a separable manner.
[0045]
Therefore, in the case of this connection means, it is possible to realize the connection between the adjacent gondola G so that the worker can freely move inside the gondola G connected in the lateral direction. In other words, when the adjacent gondola G moves up and down, the competition between the adjacent gondola G is prevented in advance, and the smooth raising and lowering of each gondola G is realized.
[0046]
Next, the lower end of the frame 5 has wheels 51, and when the gondola G is placed on the ground or the like, the frame 5 can be conveyed by being manually pushed or the like. 3, a drop prevention plate 52 is pivotally supported at the front end, which is the right end of FIG. 3, and the lower end of the suspension member 13 is connected to the tip of the fall prevention plate 52 that can swing. The upper end of 13 is connected to the front column 1.
[0047]
With the arrangement of the fall prevention plate 52, for example, even if an operator drops a tool during work, it can be prevented from dropping downward.
[0048]
Next, a little explanation will be made about the fact that the upper end of the suspension wire W for suspending the gondola G formed as described above can be moved laterally along the rail R located on the top end of the structure A. To do.
[0049]
At this time, in the present invention, the rail R connecting the upper ends of the suspension wires W is separably held by the appropriate holding mechanism 8 disposed on the roof portion of the structure A, and the holding mechanism 8 is the structure. It is supposed to be detachably distributed on the roof of A.
[0050]
The reason is that the gondola G can be moved along with the rail R, so that the gondola G does not have to be reordered to move in the lateral direction, and the rail R is held by the holding mechanism 8. By this, it can be mentioned that the suspended gondola G can maintain an appropriate interval between the outer wall surface of the structure A and the like.
[0051]
First, the holding mechanism 8 will be described. The holding mechanism 8 includes a support fitting 81 and an arm 82. The arm 82 holds the rail R, that is, it is held under a slide structure. I am going to let you.
[0052]
At this time, the support fitting 81 is formed in a so-called clamp structure, and holds the top end of the structure A in the lower part, that is, the parapet constituting the roof, while the arm 82 is shown in FIG. In the embodiment, the fixed state is maintained.
[0053]
As shown in FIG. 6, the arm 82 has a guide groove 82a along the axial direction at the upper end, and a guide ring r disposed at the lower end of the end of the rail R is engaged with the guide groove 82a. It is going to be combined.
[0054]
Therefore, in the case of the embodiment shown in FIG. 5, the upper end of the suspension wire W can be linked to the rail R by bringing the rail R to the roof side of the structure A on the arm 82. Thus, after the connection, the upper end of the suspension wire W can be pushed out by sliding the rail R on the arm 82 and feeding the rail R forward.
[0055]
As a result, in the case of using the holding mechanism 8, for example, when the upper end of the suspension wire W is connected to the rail R or when the connection is released, the worker remains on the roof of the structure A, for example. Various operations can be performed, and therefore, it is not necessary to link the rail R to the tip of the holding mechanism 8 located away from the outer wall surface or to remove the rail R from the tip of the holding mechanism 8. Become.
[0056]
In the holding mechanism 8 described above, the arm 82 is held in a fixed state by the support fitting 81, but instead of this, a bracket 81a provided at the upper end of the support fitting 81 as shown in FIG. It is good also as being connected so that it may be slidably inserted in and moved in the front-back direction.
[0057]
In this embodiment, by sliding the arm 82, the rail R can be moved as a result without directly moving the rail R as described above.
[0058]
In the case of the embodiment shown in FIG. 8, the support fitting 81 is set to be so-called bendable, and the arm 82 can be swung by bending the support fitting 81, and as a result. As in the case of the embodiment shown in FIG. 7, the rail R can be moved as a result without moving the rail R directly.
[0059]
By the way, it is assumed that the upper end of the suspension wire W is connected to the rail R configured as described above so that the upper end of the suspension wire W can travel, and the connection structure will be described below a little.
[0060]
That is, first, as shown in FIG. 9 and FIG. 10, this linkage structure includes a drive unit 91 and a driven unit 92, and the drive unit 91 and the driven unit 92 are arranged between them. The connecting rod 93 is hinged using a pin 93a (see FIG. 10).
[0061]
As described above, the drive unit 91 and the driven unit 92 are hinge-coupled via the connecting rod 93, so that, for example, even when the rail R is curved in the horizontal direction, the drive unit 91 and the driven unit 92 are separated from the rail R. No need to worry about the so-called derailment.
[0062]
Next, the configuration of the drive unit 91 and the driven unit 92 described above will be described. It is assumed that both the units 91 and 92 are basically formed in the same structure. There is a difference in having a drive source 91a (see FIG. 9).
[0063]
Otherwise, both portions 91 and 92 have a pair of wheels 94 and 95 that roll on the rail R in a so-called front and rear direction, and brackets 94a and pivots that pivotally support the pair of wheels 94 and 95, respectively. 95a is provided with hooks 94b and 95b that bind the upper end of the suspension wire W to the lower end thereof.
[0064]
Incidentally, the wheels 94 in the drive unit 91 are linked to the drive source 91a. Therefore, the wheels 94 are rotated by the drive of the drive source 91a, and the drive unit 91 moves on the rail R.
[0065]
At this time, the driven portion 92 also moves on the rail R in synchronization with the drive portion 91 due to the intervention of the connecting rod 93.
[0066]
On the other hand, as shown in FIGS. 11 and 12, the rail R is formed in a structure in which a so-called channel material having a vertical cross section of a square C shape is back-to-back, and extends laterally on both side surfaces. It has an opening R1 as a guide groove.
[0067]
Then, the guide wheels 96 and 97 held in a so-called paired state with the brackets 94a and 95a forming both the above-described portions 91 and 92 are respectively placed in the above-described openings R1 so as to be on the rail R. The wheels 94 and 95 traveling on the road are prevented from being removed.
[0068]
Incidentally, as shown in FIGS. 13 and 14, the cable holder 10 is connected to the opening R <b> 1 formed in the rail R described above, and this cable holder 10 is a driving source in the driving unit 91 described above. A so-called energization cable (not shown) connected to 91a is suspended.
[0069]
Incidentally, the total length of the cable is set to a length that does not prevent the connecting structure from moving on the rail R, so that it becomes so long. Therefore, the cable holder 10 has a plurality of openings R1 described above. Connected to.
[0070]
Further, as a measure for connecting the cable holder 10 to the opening R1 of the rail R, an arbitrary measure can be selected. In this embodiment, as shown in FIG. 15, the tip is connected to the existing rail R. It is assumed that they are connected using the auxiliary rail 101 to be connected.
[0071]
That is, the auxiliary rail 101 has a cross-sectional shape similar to that of the rail R, that is, has an opening (not shown) set in the same manner as the opening R1 in the rail R, and a necessary number of cable holders 10 are provided. It is comprised so that it can unite.
[0072]
The auxiliary rail 101 is a so-called free end while the base end is positioned on the roof side of the structure A, and the necessary number of cable holders 10 connected to the base end side are sequentially pushed so-called. Thus, it is configured to be coupled to the opening R1 of the rail R.
[0073]
The auxiliary rail 101 is removed after the necessary number of cable holders 10 are connected to the opening R1 of the rail R, that is, along the arm 82 in the holding mechanism 8 described above. It is assumed that it is slid and retracted to the roof side of the structure A.
[0074]
In view of the above, when the auxiliary rail 101 is set so that the vertical cross-sectional shape thereof is the same as or substantially the same as the vertical cross-sectional shape of the rail R, the drive unit 91 and the follower that constitute the above-described linkage structure. It is possible to connect the rail 92 with the rail 92 while the portion 92 is connected with the connecting rod 93, compared to the slide movement of the rail R connecting the portions 91 and 92 along the arm 82. This is advantageous in that the work of connecting the connecting structure to the rail R is further simplified.
[0075]
【The invention's effect】
As described above, in the present invention, the suspension wire for suspending the gondola is guided from the upper outside of the gondola to the inside of the gondola, and via the wire deflecting mechanism disposed at the upper end of the rear column. Since the suspension wire is suspended below the rear column body, it becomes possible to suspend this gondola along the axial center line where the suspension wire overlaps the center of gravity of the gondola. It will not tilt or tilt backwards.
[0076]
At this time, the suspension wire guided to the inside of the gondola is suspended by the rear column by way of the wire deflecting mechanism, and thus the suspension wire guided to the inside of the gondola should be occupied by the operator. That is, the suspension wire does not pass through the space formed between the front columnar body and the rear columnar body so that the worker is present.
[0077]
In the present invention, the wire winding mechanism for winding the lower end side of the suspension wire and lifting and lowering the gondola by winding or unwinding the suspension wire is disposed below the scaffold plate. By holding the winding mechanism on the frame below the scaffolding plate, the operator's location is widened compared to the case where the winding mechanism is distributed on the scaffolding plate.
[0078]
Not only in the present invention, the side part of the gondola is a connecting part with the adjacent gondola, and the opening is allowed to allow the operator to move to the adjacent gondola, Along with connecting multiple gondolas, the worker can move freely inside the multiple connected gondola, and the operator can cover a wide range of work in the horizontal direction without moving the gondola. Will be able to.
[0079]
In the present invention, the front column is set to be linear, while the rear column is set to be linear at the lower end, and the upper end is bent toward the front column and the upper end is set to the front column. Since it is connected to the upper end, there is no need to arrange a beam material between the upper end of the front column and the upper end of the rear column, which is advantageous in that the number of members can be reduced.
And at this time, since the protective sheet is separably held between the rear pillars, that is, the adjacent rear pillars, the inside of the gondola can be protected from the outside by this protective sheet. Become.
[0080]
Furthermore, in the present invention, the rail that connects the upper ends of the suspension wires is separably held by an appropriate holding mechanism disposed on the rooftop portion of the structure, and the holding mechanism is detachable from the rooftop of the structure. Since it is distributed, the work of connecting the upper end of the suspension wire to the rail and releasing the connection can be performed safely and easily.
[0081]
As a result, according to the present invention, it is possible to move vertically and horizontally along the outer wall surface of the structure, and it is possible to cover a wide working range in the lateral direction in a stopped state, and its versatility. There is an advantage that is optimal to expect improvement.
[Brief description of the drawings]
FIG. 1 is a schematic view showing a utilization state of a gondola apparatus according to an embodiment of the present invention.
FIG. 2 is a rear view showing the gondola of FIG. 1;
FIG. 3 is an enlarged side view showing a state where the gondola of FIG. 1 is connected to the outer wall surface of the structure.
FIG. 4 is a partial perspective view showing a state in which the protective sheet is held by the rear column.
FIG. 5 is a partial perspective view showing a state in which a rail is arranged at the top end of the structure by a holding mechanism.
FIG. 6 is a partial cross-sectional view showing a state in which a rail is linked to an arm constituting a holding mechanism.
FIG. 7 is a side view showing a holding mechanism according to another embodiment.
FIG. 8 is a side view showing a holding mechanism according to another embodiment.
FIG. 9 is a plan view showing a partially broken step of a connecting structure for connecting the upper end of a suspension wire to a rail.
10 is an elevational view of the connecting structure of FIG. 9 as viewed from the outside of the structure.
FIG. 11 is a side view showing a drive unit constituting a linkage structure.
FIG. 12 is a view showing a driven portion constituting the linkage structure in the same manner as FIG.
FIG. 13 is an elevational view showing a state where the cable holder is connected to the rail.
14 is a side view showing the cable holder of FIG. 13. FIG.
FIG. 15 is a schematic plan view showing an arrangement state of auxiliary rails for connecting the cable holder to the rails.
[Explanation of symbols]
1 Front column
2 Rear column
2a groove
3 Scaffolding board
4 Handrail frame
5 Frame
6 Wire winding mechanism
7 Wire diversion mechanism
8 Holding mechanism
10 Cable holder
11 Fixing bracket
11a Clamp part
12,22 skirting board
13 Hanging material
21 Head joint
23, 94a, 95a Bracket
24 Link member
51, 94, 95 wheels
52 Fall prevention plate
61 Winder
62 reel
71,72 sheave
81 Support bracket
82, 83, 84 arms
82a Guide groove
91 Drive unit
91a Driving source
92 Follower
93 Connecting rod
93a pin
94b, 95b hook
96, 97 Guide wheel
101 Auxiliary rail
A construction
G Gondola
R rail
R1 opening
r Guide wheel
S protective sheet
S1 end
V Veranda
V1 handrail wall
W Hanging wire

Claims (4)

An operator is present between a plurality of front columns facing the outer wall surface of the structure with an appropriate interval and a pair of front columns arranged behind the front columns. A plurality of rear pillars that form a space that allows a worker, and a scaffolding plate that is disposed between a lower end portion of the front pillar body and a lower end portion of the rear pillar body and allows an operator to enter. On the other hand, in the gondola device in which the upper end of the suspension wire for suspending the gondola is movable laterally next to the rail located at the top end of the structure, And is suspended from the rear column by way of a wire deflecting mechanism disposed at the upper end of the rear column, and the lower end side of the suspension wire is wound and suspended. Raise and lower the gondola by winding or unwinding the wire Gondola device wire winding mechanism is characterized by comprising been Zaisa distribution below the scaffolding plate The side surface of the gondola has a handrail frame swingably or separably, and is an opening that allows an operator to move to an adjacent gondola when the handrail frame swings or is removed. The gondola device according to 1 While the front column is set to be linear, the rear column is set to be linear at the lower end and the upper end is bent to the front column and the upper end is connected to the upper end of the front column, and The gondola device according to claim 1, wherein the protective sheet is separably held between adjacent rear columns. The rail connecting the upper ends of the suspension wires is separably held by an appropriate holding mechanism disposed on the roof portion of the structure, and the holding mechanism is detachably disposed on the roof of the structure. Gondola equipment as described

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