JP3033818B2 - Gondola device for building wall work and method of operating the gondola - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for cleaning, maintaining, or painting a wall surface (including a "window surface") suspended from the roof or above a building so as to be movable up and down. The present invention relates to a gondola device used for work and an operation method of the gondola.

[0002]

2. Description of the Related Art Conventionally, a washing operation, a painting operation, or a glass polishing operation of a building wall such as a building are performed by a few workers, in addition to a primitive method in which workers are hooked from a building roof with a rope. There was a case using a box-type gondola device on which a passenger could ride (illustration omitted). In this method, the wire is suspended and supported by wires arranged on the left and right sides of a gondola, and this is moved up and down by appropriately winding and unwinding it with a lifting device such as a winch.

[0003]

However, since such a gondola device is only suspended from the roof,
Poor fixation to the wall surface, and when the wind was strong, it was shaken and very dangerous. Therefore, such a gondola device is usually not used on a windy day, but sometimes the wind suddenly blows when there is no wind so that it cannot be avoided. Not only due to the wind, but also at the time of winch operation, the suspension support wires arranged on the left and right are uneven speed operation, the gondola is unbalanced, etc. Sometimes it was dangerous.

Further, since the gondola of this configuration is suspended and supported, there is little problem when the target wall surface is a vertical flat surface, but a protrusion such as a veranda or an eave is formed on the wall surface. If so, there was a problem. In other words, it is necessary to detour the gondola to avoid them, and when working inside the veranda or the like (inside the wall recess), it is necessary to get off the gondola, which is extremely dangerous and The sex was bad. In particular, many buildings in recent years have elaborated on the shape of the wall surface, and the above-mentioned problems have become remarkable.

[0005]

Therefore, the present invention has been made in view of the above-mentioned problem, and its purpose is to secure stable holding and safe movement of a gondola moving up and down along a vertical building wall,
In addition, a gondola device for work on a building wall, and a method of operating the gondola, comprising enabling horizontal movement of a gondola for work in a concave portion on a building wall having unevenness such as an eaves or a veranda. Is provided.

[0006]

In order to achieve the above object, a gondola apparatus for working on a building wall according to the present invention is configured as follows.

That is, a guide wire (9) extending substantially vertically along a building wall (80) on which unevenness such as an eaves or a veranda is formed, and extending vertically with a variable tension; The support wire (5) installed along the opposite wall surface side of (9) and stretched with a predetermined tension and the elevating device (3) installed on the roof or above the building (8) make the wall surface (80) A gondola (7) suspended and supported so as to be able to move up and down along the road, and the gondola (7)
And the rolling means (75), which can be rolled in contact with the wall surface (80), is disposed on the side surface of the gondola (7), and the guide wire (9) is engaged. A guide roller (76) for guiding the movement of the gondola (7);
Engaging slide means (72) arranged on the opposite wall surface side of the gondola (7) and engaging with the support wire (5), and the gondola (7) by the tension of the support wire (5).
Moves up and down while being pressed against the wall,
The gondola (7) is moved in a direction perpendicular to the wall surface (80) by changing the tension of the guide wire (9).

Although the support wire (5) is set to apply a constant tension, the tension of the support wire (5) may be changed as appropriate.

Further, in the gondola apparatus, the tension of the guide wire (9) and / or the support wire (5) is varied in the concave portion of the wall surface so that the horizontal tension of the guide wire acting on the gondola (7) is reduced. Force (H
g) and the horizontal component force (Hs) of the support wire tension, and the gondola (7) in the concave portion (82) of the wall surface (80) is appropriately moved in the vertical direction with respect to the wall surface (80) by the balance. Operate as follows.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, specific embodiments of the present invention based on the above configuration will be described with reference to the drawings. FIG. 1 is a schematic view showing a gondola apparatus according to the present embodiment of the present application, FIG. 2 is a perspective view showing a schematic configuration of a gondola used in the gondola apparatus, and FIG. 3 is an operation of the gondola apparatus according to the present embodiment. It is a schematic diagram showing a situation.

The gondola 7 is formed in a box shape having a space in which a casing 70 can be put by an operator, and the gondola 7 is mounted on the wall surface 80 by the lifting device 3 disposed on the roof 83 of the building 8. It is suspended and supported so that it can move up and down. In the building 8, a protruding portion 81 such as an eave or a veranda is formed on a wall surface 80, and a recess 8 is formed between the protruding portions 81.
It is 2.

On the opposite wall surface side of the gondola 7, a projecting frame 7 is provided.
1 and a support roller 72 serving as an engagement sliding means is attached to a substantial end thereof. This support roller 72
Is configured to slide while engaging with a support wire 5 described later. That is, the stopper 73 is arranged at the outer peripheral position of the support roller 72 so that the support wire 5 is engaged with the support roller 72 so as not to fall off during the contact movement.

The lifting device 3 may be a generally used device.
Is fixed by a weight 31 and the tip side extends from a parapet 84 on the rooftop edge, a rod-shaped support base 32, a winch 33 disposed on the trunk 30 side, and the support base 3
2 and a pulley 34 attached to the tip. And the support wire 4 drawn out from the winch 33
Is mounted on the upper surface of the gondola 7 via a pulley 34.

Next, the support wire 5 is stretched substantially vertically along the building wall surface 80 to be worked and with a predetermined tension (tension).
1 is brought into contact with the outer peripheral surface of the support roller 72 on the side opposite to the wall surface, and is engaged so as not to fall off during movement. In this arrangement, the upper end is supported by a support 50 fixed to a parapet 84 on the rooftop edge, and is supported with a constant tension by the weight of the weight 51, and the lower end of the anchor 52 is placed on the ground 6. And mooring. In this embodiment, a weight of about 70 kg is used for the weight 51.

Further, a guide wire 9 is provided along the support wire 5. The guide wire 9 has an upper end connected to a tensioning machine 90 arranged on a building rooftop 83,
The lower end is fixed by an anchor 91 buried in the ground 6. The guide wire 9 is provided on the protrusion 8 of the wall 80.
Protective device 9 consisting of splints, rollers, etc. arranged at the corners of 1
2, the projecting portion 81 of the wall surface 80 is connected so as to be connected, and an appropriate tension is applied by a pulling operation of the pulling machine 90. In this embodiment, 0 to about 7
The tension is applied in the range of 00 kg.

The support wire 4 is provided on the upper surface of the gondola 7.
And stabilizing wire 40 for steadying if necessary.
It supports three points. On both sides of the gondola 7, pulleys 74, 74,... Constituting rolling means form a substantially triangular shape at the edge position along the wall surface 80 and on the opposite wall surface side, and are each in a free state (rotatable). Attached. Pulley 74
, A V-belt 75 is stretched over, and the V
The surface of the belt 75 slightly projects from the edge of the gondola 7 toward the wall surface 80.

The pulleys 74a, 7a along the wall surface 80
A guide roller 76 is rotatably mounted on the side of the center of rotation of 4b.
A stopper 77 is attached. The guide wire 9 comes into contact with the outer peripheral surface of the guide roller 76 on the wall surface side, and is prevented from falling off during movement by the stopper 77. [Operation of Embodiment] With the above configuration, the gondola 7 moves up and down by operating the winch 33. At this time, since the guide roller 76 is engaged with the guide wire 9, the gondola 7 is guided (guided) by the guide wire 9 and moves smoothly. That is, the guide wire 9
Becomes substantially rod-shaped due to the strong pulling force of the pulling machine 90, and the gondola 7 moves while the V-belt 75 wrapped around the pulley 74 contacts the wall surface 80 during the movement of the protrusion 81,
During the movement of the concave portion 82, the V belt 75 separates from the wall surface 80, and the guide roller 76 moves on the guide wire 9.

Next, when the work is performed on the wall surface 80 in the concave portion 82, the tension of the guide wire 9 and / or the support wire 5 is changed so that the tension of the guide wire acting on the gondola 7 is reduced. By balancing the component force Hg and the horizontal component force Hs of the tension of the support wire 5, the support wire 5 is appropriately moved in the horizontal direction (the direction perpendicular to the wall surface 80) (arrow a). That is, by reducing the tension of the guide wire 9, the horizontal component force Hs of the tension of the support wire 5 is relatively increased, and the gondola 7 moves in the concave direction (to the left in FIG. 4). Conversely, by increasing the tension of the guide wire 9, the horizontal component Hs of the tension of the support wire 5 becomes relatively small, and the gondola 7 moves in the direction of going out of the concave portion (to the right in FIG. 4). become.

The adjustment of the tension of the guide wire 9 depends on the operation of the tensioning machine 90 described above. The activation is performed by remote control of an operator riding on the gondola 7.
In this embodiment, the tension of the support wire 5 is kept constant, and only the tension of the guide wire 9 is varied. In addition, the tension of the support wire 5 may be varied. .

[0020]

[Effect] Since the present invention is configured as described above,
The following effects are obtained. That is, since the gondola apparatus of the present application constantly presses the gondola with the support wire toward the wall surface, the gondola can be stably and safely moved with good fixability to the guide wire stretched on the wall surface. Therefore, it is possible to avoid the danger of being inclined by the wind or leaving the wall surface.

Further, since the gondola is guided by the guide wire under strong tension, the gondola can be moved smoothly irrespective of the unevenness of the wall surface, and even if it receives horizontal and horizontal wind pressure along the wall surface. It can be stably held in a state of approaching the wall surface without separating from the guide wire stretched on the wall surface.

Further, by varying the tension of the guide wire and / or the support wire, the horizontal component of the tension of the guide wire acting on the gondola and the horizontal component of the tension of the support wire are changed, and their balance is adjusted. Thus, the gondola can be moved closer to the lower wall of the eaves on the wall of the building or toward the wall of the recess such as the veranda. By this operation, the work and movement in the concave portion can be performed while riding on the gondola, so that it is possible to further improve workability and ensure safety.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a gondola device according to the present embodiment.

FIG. 2 is an overall perspective view showing a schematic configuration of a gondola used in the present embodiment.

FIG. 3 is a schematic diagram showing an operation state of the gondola device according to the embodiment.

[Explanation of symbols]

 3 Lifting device 30 Trunk 31 Weight 32 Support base 33 Winch 34 Pulley 4 Support wire 40 Stability wire 5 ..Support wire 50 ... Support tool 51 ... Weight 52 ... Anchor 6 ... Ground 7 ... Gondola 70 ... Housing 71 ... Protruding frame 72 ... Support roller 73: Detachment stopper 74: Pulley 75: V belt 76: Guide roller 77: Detachment stopper 8: Building 80: Wall surface 81: Protrusion 82 ··· Recess 83 ··· rooftop 84 ··· parapet 9 ··· guide wire 90 ··· pulling machine 91 ··· anchor 92 ··· protector

Claims (3)

(57) [Claims] 1. A guide wire (9) extending substantially vertically along a building wall (80) on which irregularities such as an eaves and a veranda are formed, and extending vertically with a variable tension.
And a support wire (5) juxtaposed along the opposite wall surface side of the guide wire (9) and stretched with a predetermined tension.
A gondola (7) suspended by a lifting device (3) installed on the roof or above the building (8) so as to be able to move up and down along the wall surface (80), and protruding from the gondola (7) to the wall surface side. Place the wall (8
Rolling means (75) which can roll in contact with the gondola (7), and a guide for guiding the movement of the gondola (7) by engaging the guide wire (9) with the guide wire (9). A roller (76), and an engaging sliding means (72) arranged on the opposite wall surface side of the gondola (7) and engaged with the support wire (5). The gondola is tensioned by the support wire (5). (7) is moved up and down while being pressed against the wall surface, and the gondola (7) is moved perpendicularly to the wall surface (80) by varying the tension of the guide wire (9). Gondola device for building wall work. 2. The gondola device according to claim 1, wherein the tension of the support wire (5) is variable. 3. The method of operating a gondola device according to claim 1, wherein the guide wire (9) and / or the support wire (5).
The horizontal component (Hg) of the guide wire tension acting on the gondola (7) and the horizontal component (Hs) of the support wire tension are varied by changing the tension of the wall (80). Wherein the gondola (7) in the concave portion (82) is appropriately moved in a direction perpendicular to the wall surface (80).