JP2916079B2 - Flexible work cart for large space buildings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting system, a sound system, an air conditioner, and the like, which are disposed on the inner surface of a dome roof having a shell structure in a building requiring a large space such as an indoor stadium, a theater, an exhibition hall, and a factory. The present invention relates to a free-standing work vehicle in a large space building used for maintenance of ancillary facilities and for cleaning the inner surface of glass of a top light provided on a part of a dome roof.

[0002]

2. Description of the Related Art Conventionally, a dome roof having a shell structure in this type of building has a height of about several tens of meters, and thus maintenance of incidental facilities such as lighting, sound, and air conditioning equipment provided on the inner surface of the dome roof. Scaffolding is required in some cases, but construction was not possible due to the high dome roof.

In order to solve this problem, it is conceivable to provide a hanging type gondola for each auxiliary facility. However, such a gondola must be provided for each auxiliary facility. Therefore, there is a disadvantage that a large number of elevating gondola is required, and there is a disadvantage that when the elevating gondola is not used, waiting on the inner surface of the dome roof greatly reduces the effective ceiling height.

[0004]

SUMMARY OF THE INVENTION The present invention is intended to reduce the reduction of the effective ceiling height by reducing the exclusive space of the running track provided inside the dome roof, and to prevent the effective ceiling height from being an obstacle except during maintenance. It can be stored and improved safety, and it can be used for all incidental facilities.It also reduces the number of traveling vehicles and reduces installation costs. Is to be provided.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-mentioned problems, such as the inability to construct a scaffold and the required number of lift gondolaes or the presence of large suspended objects on the inner side of the dome roof. A main guide portion is provided along a lower portion of the main beam tube provided in the arc direction, and is provided on the main guide portion.
The traveling vehicle is controlled to move only rail member provided, by providing the work gondola to the traveling carriage, moved by placing the operator to any auxiliary equipment which is provided along the main beam tube of the dome roof inner surface .

In addition, a guide portion is provided below the beam tube cross-connected to the main beam tube, and a work gondola mounted on the traveling carriage can be moved to the guide portion so that the beam tube on the inner surface of the dome roof can be moved. The object of the present invention is to provide a universal work vehicle in a large space building which aims to move an operator to ancillary facilities provided along the road.

[0007] The free work truck in the large space building according to the present invention is constituted by a traveling truck provided with a drive motor equipped with a drive sprocket that meshes with a chain provided below the main beam tube. I have.

[0008] The main beam tube is provided through an arc direction of the dome roof, also the chain is fixed at one end to a dome roof highest portion, only on the main guide portion disposed along the lower side of the main beam tube <br / > Along the bottom of the rail-shaped rail, a semicircular decorative tube is provided below the main guide .

[0009] The traveling vehicle before and after the running direction of the frame, the main
The guide unit and wheels rolling on the rail body are arranged, the gondola unit is pivotally supported on the frame, and the drive sprocket meshes with the chain via a brake and a speed reducer.

In addition, a chain guide pulley is disposed at the front and rear positions of the driving sprocket, and the chain disposed on the rail body is brought into contact with the lower peripheral surface of the chain guide pulley, and is engaged with the upper peripheral surface of the driving sprocket. ing.

In a working gondola swingably mounted on a traveling vehicle, a supporting arm is projected from a frame of the traveling vehicle, and a swinging mechanism is provided on the supporting arm to mount the working gondola on the traveling vehicle.

The guide portion provided on the beam tube is provided intermittently so as to have a travel space on both sides of the main guide portion, and the guide portion and the child guide portion of the support arm can be freely butted. The work gondola arranged in the section can be moved to the guide section.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a work vehicle having a shell structure according to the present invention in which a moving direction in a large space building is various.
Is to control the movement on the inner surface side of the dome roof 2 of the dome-shaped building, and to move the lighting, sound, ancillary equipment such as air conditioning equipment and the like, and the top light to the location where the dome roof 2 is arranged, A place where the effective ceiling height of the dome roof 2 does not become an obstacle except during maintenance of incidental facilities, etc.
For example, it is stored in the lower part of the arc of the dome roof 2.

Reference numeral 3 denotes a running track of the work vehicle 1. In a pipe truss 4 forming a hemispherical dome roof 2, a vertical main beam pipe body 5, 5a,.
A beam pipe 6, which is connected to the main beam pipes 5, 5a,.
The main guide 7 and the guides 8 and 8a are respectively suspended along the lower part of 6a.

A semicircular decorative tube 9 is fixed below the main beam tubes 5, 5a,. , 5a... And beam pipes 6, 6a.
The crossing structure of the guide portions 8 and 8a of 6a... Is not directly connected, and a traveling space path W larger than the width of the work vehicle 1 is provided on both sides of the main guide portion 7 so that the guide portions 8 and 8a are intermittent. Are suspended below the beam pipes 6, 6a,.

The work carriage 1, dome roof 2, main beam pipes 5, 5a,..., Beam pipes 6, 6a, main guide section 7, guide sections 8, 8a, etc. Although a dome-shaped building is shown as an example of the building, the invention is applicable to all semi-cylindrical and other shell-structured buildings and large-span buildings, and is collectively referred to as a dome roof 2 in the present specification. The roof structure includes a roof structure having a curved or inclined rising surface.

Also, the intersection angle between the main beam pipes 5, 5a... And the beam pipes 6, 6a... Has been shown to be 60 degrees in a dome type building, but it can also be a right angle, 45 degrees, 30 degrees or any other angle. Also, the top of the roof is not limited to a point but may be a line or a plane.

Further, the main beam pipes 5, 5a... Along the upper surface of the main guide portion 7 provided below, are grooves formed of an H-shaped or U-shaped grooved steel having upstanding lip pieces 10, 10a. A pair of rails 11 and 11a are arranged side by side, and chains 12 and 12a are arranged along the bottom of the groove in the rails 11 and 11a.
One end of each of 2, 2a is fixed to the top of the dome roof 2 in the main beam pipes 5, 5a,.

Reference numeral 13 denotes a traveling vehicle constituting a drive unit of the work vehicle 1, and a pair of side walls 14a, 14a, 14b of a frame 14 located on both sides of the main guide portion 7 of the main beam pipes 5, 5a.
A pair of wheels 15, 15a, which roll on the lip pieces 10, 10a of the rails 11, 11a, are provided in front, rear, left and right, respectively, between the rails 11, 11a. The lip pieces 10, 10 are controlled so as to restrict the lateral displacement on the upper side.
The ring-shaped tongue pieces 16, 16a located on both sides of a are integrally formed.

The wheels 15, 15a,... Are mounted on the traveling carriage 13 by mounting a pair of mounting plates 17, 17a in an upper covering state on the inner upper portions of the side walls 14a, 14b of the frame 14. A pair of plate-shaped bearings 18, 18 are provided on both lower sides of the plates 17, 17a.
a, and a rotating shaft mounted on the bearings 18 and 18a.
19, 19a ... are equipped with wheels 15, 15a ...

Reference numeral 20 denotes a traveling drive unit of the traveling vehicle 13.
c A drive motor 22 having a brake / reduction gear 21 is fixed thereon, and a sprocket 24 is mounted on a drive shaft 23 of the drive motor 22.

On the other hand, a pivot 25 is horizontally mounted on mounting plates 17, 17a provided between the side walls 14a, 14b of the frame 14, and a rail body
A drive sprocket 26 meshing with the chains 12, 12a arranged on the 11, 11a is rotatably provided, and the side walls 14a, 14
A sprocket 27 is mounted on the pivot 25 on the outer side of b, and an endless chain 28 is wound between the sprocket 27 connected to the driving sprocket 26 and the sprocket 24 of the driving motor 22.

Further, chain guide pulleys 29 and 29a are disposed at front and rear positions in the running direction of the driving sprocket 26,
The chains 12, 12a provided on the rails 11, 11a are brought into contact with the lower peripheral surfaces of the chain guide pulleys 29, 29a and are meshed with the upper peripheral surface of the drive sprocket 26.

The pivot shafts 30 and 30a of the chain guide pulleys 29 and 29a are mounted in the same manner as the pivot shaft 25 of the drive sprocket 26, and the traveling drive unit 20 is, of course, used in an emergency in the event that the chain is cut. For this purpose, a disc brake (not shown) is provided as the brake mechanism 31 for applying a braking force by sandwiching the lip pieces 10 and 10a of the rail bodies 11 and 11a.

Further, in order to stabilize the traveling carriage 13 with respect to the main guide portion 7 of the main beam tubes 5, 5a..., The supporting rollers 32, 32a slidingly contacting the decorative tube 9 provided below the main guide portion 7. …
Is disposed at an appropriate position on the traveling vehicle 13.

Reference numerals 33, 33a denote a pair of support arms projecting outward from the side walls 14a, 14b of the frame 14.
a is provided at a predetermined angle with respect to the traveling carriage 13, and the angle is determined by the main guide portion 7 provided for the main beam pipes 5, 5a, and the guide section 8 provided for the beam pipes 6, 6a,. The angles of the support arms 33, 33a are the same as those of the angles 8a, and the support arms 33, 33a have a slight gap with respect to the guide portions 8, 8a, so that they can be substantially connected to each other.

Numerals 34, 34a denote a pair of working gondolaes suspended from the supporting arms 33, 33a. The working gondolas 34, 34a guide the beam pipes 6, 6a... From the supporting arms 33, 33a of the traveling carriage 13. The parts 8 and 8a are movable.

The embodiment of the pair of support arms 33, 33a and the work gondola 34, 34a will be described in detail. Bearings 35, 35a are mounted on the side walls 14a, 14b of the frame 14, and the bearings 35, 35a are mounted on the bearings 35, 35a. The support shaft 36 is fitted, and the side walls 14a, 14
A pair of bearings 38, 38a,... are fitted to projecting support portions 37, 37a of a support shaft 36 projecting from b.

The child guides 40, 40a are mounted at a predetermined angle on mounting plates 39, 39a fixed to the mounting bases of the bearings 38, 38a..., And the child guides 40, 40a and the beam pipes 6, 6a. The horizontal surfaces provided in opposition to the guide portions 8 and 8a are formed as travel guide surfaces 41, 41a, respectively.

Reference numerals 42, 42a denote gondola portions of the working gondola portions 34, 34a. Holding plates 43, 43a are mounted on the upper portions of the gondola portions 42, 42a at the same angle as the child guide portions 40, 40a. A pair of running rollers 44, 44a are rotatably mounted in the front-rear direction of 43, 43a, respectively.
2, 42a has an open / close door.

The support shaft 36 and the bearings 35, 35 in the above configuration
a, 38, 38a, etc., the frame 14 of the traveling carriage 13
For the main beam tube 5, 5a ...
The work gondola 34, 34a is mounted swingably.

Reference numerals 45 and 45a denote the guide portions 8 and 8a and the sub-guide portions 4
This is a safety mechanism provided between 0 and 40a. A female part 46 is provided on one side, and a male part 47 is provided on the other. The lower part of the holding plates 43, 43a is rotated in contact with the lower surfaces of the traveling guide surfaces 41, 41a. Guide rollers 48, 48a,.

Reference numerals 49 and 49a denote sub-gondola sections provided between the pair of gondola sections 42 and 42a.
Is provided with a locking portion 50 having an enlarged tip.

The work gondola 3 for the guide portions 8, 8a of the beam pipes 6, 6a... And the child guide portions 40, 40a of the traveling carriage 13 is provided.
As described above, in the constructions 4 and 34a, it is possible to move between the two so that they can run freely. However, even though the guides 8 and 8a are installed in the horizontal direction, although not shown, the guides 8 and 8a and the child guides are not shown. Naturally, it is better to provide a mechanism for fixing the work gondola 34, 34a to 40, 40a.Although the work gondola 34, 34a is shown as an example of manual traveling, it is possible to attach an electric motor or the like. Not even.

The working gondola 34, 34a is configured to be swingable with respect to the frame 14 of the traveling carriage 13, but the structure to be swingable may be other than the support shaft 36 of the support arms 33, 33a. Good and swing mechanism is frame 14 and working gondola 3
It should be between 4, 34a, and the support shaft 36 penetrates the frame 14 so that the structure is relatively simple.However, if the structural strength is sufficient, various swing mechanisms can be selected. It is.

In the drawing, reference numeral 51 denotes a power supply trolley duct for supplying power to the drive motor 22 of the traveling vehicle 13.

Next, the operation of the universal work cart in the large space building according to the present invention will be described. When the work cart 1 is located at the lowermost part of the dome roof 2 or in the retracted state, the work gondola 34, 34a The worker gets in,
When the drive motor 22 supplied with electric power from the power supply trolley duct 51 is operated by operating a control device (not shown) provided in the work gondola 34, 34a, the drive motor 22
The drive sprocket 26 attached to the drive shaft 23 rotates,
The traveling carriage 13 moves above the dome roof 2, which is the upper end side of the chains 12, 12a meshing with the driving sprocket 26.

This movement is performed by the main beam pipes 5, 5a,.
Move along the traveling space path W between the guide portions 8 and 8a of the beam pipes 6, 6a..., And ancillary facilities are arranged along the main beam pipes 5, 5a. The worker is transferred to the set place, and then the brake is operated to stop at a predetermined position.

Further, since the running track 3 in the arc direction of the dome roof 2 is constituted by the chains 12 and 12a and meshes with the upper peripheral surface of the driving sprocket 26, the main beam pipe 5 of the pipe truss 4 Even if 5a are bent, the meshing state is maintained to restrict idling, and if the chains 12, 12a on the running track 3 are cut by any chance, the rail body 11 is provided by the separately provided brake mechanism 31. , 11a
The lip pieces 10, 10a of the chain can be stopped by applying a braking force, and the chains 12, 12a themselves are always meshed with the driving sprocket 26 and are the driving motor 22 having the brake and reduction gear 21, so that the chain The sliding down of 12, 12a is also regulated.

Next, the main beam pipes 5, 5a,.
For those other than the auxiliary equipment along the beam, the beam pipe 6, 6a ...
The traveling vehicle 13 is stopped at a position where the child guide portions 40, 40a of the traveling vehicle 13 abut against the guide portions 8, 8a of the traveling vehicle 13, and the safety mechanism 4
5 and 45a are released, and the guide portions 8 and 8a and the child guide portions 40 and 4 are released.
The traveling gondola 34, the traveling rollers 44, 44a of the traveling gondola 34, 34a travel on the traveling guide surfaces 41, 41a, which coincide with each other, to the auxiliary facilities disposed along the beam pipe 6, 6a.
Move 34 and 34a horizontally to carry out maintenance work and cleaning work for all auxiliary facilities.

In moving between the pair of working gondola units 34, 34a, the sub-gondola units 49, 49a between the two gondola units 42, 42a serve as a walking unit, and the wheels 15 for rolling the rail bodies 11, 11a. , 15a... Restricts the lateral displacement, so that the vehicle can move in a stable state without derailing.

[0042]

In summary, according to the present invention, the main guide portion 7 is disposed below the main beam pipes 5, 5a... Provided over the arc direction of the dome roof 2 , and one end is fixed to the top of the dome roof 2. Since the chains 12, 12a are arranged along the upper surface of the main guide portion 7 , the running track 3 itself is not linear, and the main beam pipes 5, 5a,.
Along with the chains 12, 12a, and the simple structure of the chains 12, 12a and the main guide portion 7 makes it possible to reduce the space occupied by the running track 3 and thus the effectiveness of the dome roof 2 The reduction of the ceiling height can be reduced, and the work cart 1 is stored below the main beam pipes 5, 5a,... Of the dome roof 2 to prevent obstacles to securing the effective ceiling height of the dome roof 2 except during maintenance. Can be eliminated.

On the other hand, the wheels 15, 15 rolling on the main guide portion 7 before and after the traveling direction of the frame 14 of the traveling vehicle 13
are provided, and a drive motor 22 having a brake / reduction gear 21 is provided, and a drive sprocket 26 whose rotation is controlled by the drive motor 22 is connected to the chains 12, 12.
Since the traveling track 3 is provided along the main beam pipes 5, 5a,..., the required number of traveling vehicles 13 is small, and the installation cost can be reduced by arranging them on the ground side.

Further, the supporting arms 33, 33a are provided on both sides of the frame 14, and the working gondola 34, 34a is mounted on the pair of child guides 40, 40a attached to the supporting arms 33, 33a. When the traveling carriage 13 travels in the arc direction of the roof 2, the pair of working gondola 34, 34a can be simultaneously moved upward, and the beam pipes 6, 6a cross-connected to the main beam pipes 5, 5a. The guides 8, 8a are intermittently provided below the..., So that the working gondola 34, 34a can move on the traveling space path W between the guides 8, 8a on both sides, and work on the frame 14. Since the gondola 34, 34a can swing freely,
Although the traveling carriage 13 moves obliquely in the arc direction, the work gondola 3
4, 34a is always kept in a vertical state, so workers can be carried in a stable state.

The guides 8, 8a and the child guides 40, 40a
The work gondola 34, 34a disposed on the child guides 40, 40a can be smoothly moved to the guides 8, 8a, and in conjunction with the intermittent connection of the guides 8, 8a. Thus, the sub-guide portions 40, 40a for holding the working gondola 34, 34a are provided at the same height as the guide portions 8, 8a to reduce the difference in height between the main guide portion 7 and the guide portions 8, 8a to reduce the effective ceiling height. , And a pair of working gondola 34, 34a disposed on the child guides 40, 40a can be moved to the guides 8, 8a. In addition to the ancillary facilities installed, workers along the beam pipes 6, 6a ... can move to the nearby area while riding the work gondola 34, 34a, and all the ancillary facilities on the dome roof 2 Maintenance work etc. can be performed safely.

Further, the chain guide pulleys 29, 29a of the drive sprocket 26 are provided, and the chains 12, 12a are brought into contact with the lower peripheral surface of the chain guide pulleys 29, 29a, and mesh with the upper peripheral surface of the drive sprocket 26. Even if the main beam pipes 5, 5a ... are bent, the mesh structure of the drive sprocket 26 and the chains 12, 12a is reliably prevented to prevent idling even with the shell-shaped dome roof 2 of the pipe truss 4. It enables smooth movement and improves safety.

Since the semicircular decorative tube 9 is provided below the main guide 7, even when the inside of the dome roof 2 is viewed from below, the same tube as the main beam tube 5, 5a. Can be checked in parallel to make the running track 3 clearer in design, or the supporting rollers 32, 32a from various directions attached to the traveling carriage 13 with respect to the cosmetic tube 9 can be applied. The practical effect is extremely large, for example, the contact can improve the stability.

[Brief description of the drawings]

FIG. 1 is a front view of a free work cart in a large space building according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a schematic diagram showing a vertical movement state of a work cart.

FIG. 5 is a schematic diagram showing a horizontal movement state of the work cart.

FIG. 6 is a sectional view showing a drive unit of the work cart.

FIG. 7 is a side view of FIG. 6;

FIG. 8 is an enlarged sectional view of a main part of FIG. 6;

FIG. 9 is a partial plan view showing a pipe truss of a dome roof in a large space building.

[Explanation of symbols]

 2 Dome roof 6, 6a ... Beam pipe 5, 5a ... Main beam pipe 7 Main guide part 8, 8a Guide part 9 Makeup pipe 12, 12a Chain 13 Traveling trolley 14 Frame 15, 15a ... Wheel 21 Brake / reducer 22 Drive motor 26 Drive sprocket 29, 29a Chain guide pulley 33, 33a Support arm 34, 34a Working gondola 40, 40a Child guide

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Toshio Okuda 2-10-15 Shinei, Naka-ku, Nagoya City Japan Nagoya Gondola Co., Ltd. (56) References JP-A-63-107652 (JP, A) 47-28481 (JP, Y1) (58) Fields investigated (Int. Cl. ⁶ , DB name) E04G 1/36

Claims (3)

(57) [Claims] 1. A main guide portion is disposed below a main beam tube provided over an arc direction of a dome roof, and a chain having one end fixed to the top of the dome roof is disposed along an upper surface of the main guide portion. On the other hand, before and after the traveling direction of the frame of the traveling vehicle, wheels that roll on the main guide portion are provided, and a drive motor equipped with a brake and a speed reducer is provided, and a drive sprocket whose rotation is controlled by the drive motor is provided. The arm is engaged with the chain, and a supporting arm is protruded from both sides of the frame. A work gondola is mounted on a pair of child guides attached to the supporting arm. A guide section is provided intermittently, and the work gondola can swing freely with respect to the frame, and the guide section and the child guide section can be butted freely, and a pair of work gondola arranged on the child guide section is used for the guide section. Transfer A free-standing work cart for large space buildings, characterized by being movable. 2. A chain guide pulley is disposed at front and rear positions of a driving sprocket, and a chain is brought into contact with a lower peripheral surface of the chain guide pulley and meshed with an upper peripheral surface of the driving sprocket. Item 1
The universal work cart in the large space building described. 3. The free work cart in a large space building according to claim 1, wherein a semicircular decorative tube is provided below the main guide portion.