JP3101877B1 - The method of traveling around the jib crane on the top of the framework scaffold and its equipment. - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten a construction period by using one material stockyard only to increase efficiency, utilizing a portion of prefabricated scaffolding not utilized before to the maximum, and using a jib crane for safely and efficiently performing an external wall sticking operation of a multi-story steel frame building. SOLUTION: This device is formed so that two rails 3 and 3 including corners at four corners are laid down at the tip part of a prefabricated scaffolding 2 positioned on four sides of a steel frame 1 under construction, and a jib crane 6 is self-run by four-wheel drive. Even if drive wheels 9 and 9 of one side rail of a carriage 7 are raised by load applied to one side of the jib crane when material is lifted, the drive traveling of the carriage is continued by two-wheel drive of the other drive wheels 9 and 9, and the side edge of the carriage on the raised side is held by a loosely rotating wheel 11 on the underside of a rail surface so as to prevent the carriage from being turned over. At a corner, in order to eliminate a speed difference due to a difference between inner and outer wheels, only one side two wheels are drive run by a loosely rotating wheel with jack installed on the underside of the carriage and on the outer rail side. Thus, the entire upper surface of the prefabricated scaffolding including the corners can be safe-run circulatingly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for traveling around a jib crane on a top of a framework scaffold top for safely traveling around a jib crane for hanging a wall by hanging a material using a framework scaffold in a high-rise building construction process. It also relates to the device.

[0002]

At the construction site of a high-rise building, the frame of the scaffold for the construction of the outer wall is also increased in accordance with the work of assembling the steel frame. Or fixed to a part of the upper surface of the assembled steel frame, and the material was lifted from below the scaffold to the construction location between the framed scaffolds, and the work was performed. That is, depending on the construction site, the jib crane is moved and fixed each time, or several jib cranes are installed in parallel, and extra work is required, and the construction period is postponed.
Furthermore, in any case, the jib crane is based on the premise that the lower base is firmly fixed, and since the material will be pulled up from the bottom to the construction point, it will not be possible to avoid obstacles such as scaffolding support fixed frames between the steel frame. There was always a big danger, such as the danger of crashing and falling.

[0003] Therefore, after lifting the material above the scaffold,
If you hang it from the top to the construction site between the steel frame and the scaffold,
Even if it gets caught on the scaffold support fixing frame between the steel frame and the wire, only the wire is loosened, and there is little danger. However, for that purpose, the jib crane is located on the top surface of the scaffold around the steel frame, the material is run to the construction position while being lifted, the arm is turned, and the arm may be lowered to the required construction location,
In this case, a jib crane that receives a biased load due to a cantilever load on the crane arm during the material lifting work has a danger that one of the drive wheels of the bogie will float up and the bogie and the bogie will fall down together while running, and there is a safety problem, Conventionally, traveling of a jib crane while being lifted was impossible.

According to the present invention, a jib crane is positioned on the top surface of a scaffold at the periphery of a steel frame, and while lifting materials from the ground and the roof, the jib crane travels and moves on the upper surface of a four-frame framework scaffold along the steel frame, and is suspended at a construction position. This is a jib crane orbital running method that enables material to be supplied to the construction site without suspension and can be attached to the wall. In particular, not only parallel straight running but also turning around right-angled corners is overturned. The present invention significantly improves the work efficiency of the outer wall construction by enabling safe running without fear of squatting.

[0005]

Means for Solving the Problems The first invention of the present application is to lay a rail including the four corners at the top of a framed scaffold assembled on the four circumferences of a steel frame being constructed, and on the rail, A jib crane that is rolled so that it can be driven by four-wheel drive on its own, with a drive shaft arranged and supported on the underside of the bogie, and four wheels driven by both drive wheels driven by a central drive motor. Even if the load on one side of the jib crane when lifting the material causes the drive wheel of any one of the rails of the bogie to float, the drive wheel of the lifted one is still idle and the two-wheel drive of only the other grounded drive wheel is performed. The bogie's side edge on the raised side is held on the rail with another idler wheel to prevent it from falling over, and at the corner, the idler wheel with a jack provided on the underside of the bogie is used for one side. As a drive-only drive, it enables curved running without considering the difference in speed between the inner and outer wheels, and makes it possible to run around the entire upper surface of the framed scaffold including corners without a risk of overturning even with a single load, and the framed scaffold and jib crane The jib crane in which the circulating traveling method is integrated is characterized.

In the second invention, two rails 3, 3 including four corners are laid on the top of a framed scaffold 2 assembled on the four sides of a steel frame 1 under construction, and the rails 3, 3 are laid. On top, a bogie 7 of a jib crane 6 composed of a boom arm 4 and a turning post 5 is rolled over so as to be allowed to run by four-wheel drive,
The bogie 7 includes drive shafts 10 and 10 arranged and supported on the front and rear of the lower surface.
Of the jib crane 6 for lifting the material, the load applied to one side of the bogie 7 by one of the drive wheels 9, 9 is driven by the drive wheels 9, 9 driven by the central drive motors 8, 8. Even if the drive wheel 9 is lifted, the drive wheel 9, 9 on the lifted side is kept idle, and the drive traveling of the bogie 7 is continued by the two-wheel drive of the other drive wheel 9, 9, and the bogie side edge on the raised side is In order to prevent overturning by holding it with another idler wheel 11 which is brought into rolling contact with the lower side of the rail surface, and at the corner, in order to eliminate the speed difference due to the difference between the inner and outer wheels, the outer rail at the intermediate position between the bogie lower surface drive shafts 10, 10. A jib crane orbiting traveling device that enables driving traveling only on two wheels on one side by the idler wheel 13 with the jack 12 provided at the upper side, and makes it possible to orbit around the entire upper surface of the framed scaffold including the corner.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In a high-rise steel building under construction, a framed scaffold is assembled and constructed along the outer periphery according to the height of a steel frame, and is used as a scaffold for attaching an outer wall and unloading materials. However, the structure of the scaffold itself is quite large in strength, and there is considerable room for the load applied to the top surface, and the space above the top of the scaffold is generally unused. is the current situation.

[0008] A major purpose of the scaffold is to provide a work scaffold for attaching an outer wall material, but this naturally involves unloading work to a construction site for material. Conventionally, a large tow truck is used separately for unloading work, and wasteful energy is consumed also for lifting small items.Furthermore, in the case of a tow truck, the storage place of materials according to the construction location It is scattered in several places and sometimes needs to be lifted, it is inefficient, and when lifting materials between a narrow frame and a scaffold, there is a risk of being caught and dropped with care.

The present invention basically consists in integrating a scaffold and a traveling jib crane, which is a dedicated machine. By maximizing the use of energy except for energy, ensuring safe running of the jib crane, enabling sideways running and curved running, the work of attaching the outer wall of a high-rise steel building has become extremely safe and efficient, and has led to a reduction in the construction period. .

That is, the present invention relates to a steel frame 1 during construction.
On the top of the framework scaffold 2 assembled on the four circumferences, two rails 3, 3 including four corners are laid, and a jib crane 6 including a boom arm 4 and a turning post 5 is placed on the rails 3, 3. The cart 7 is turned so as to be allowed to run by four-wheel drive, and the cart 7 is disposed on the front and rear of the lower surface and supported by the drive shaft 1.
The four wheels are driven by two driving wheels 9, 9 driven by central driving motors 8, 8, respectively. The load applied to one side of the jib crane 6 for lifting the material is limited to one of the rails of the bogie 7. Even if the drive wheels 9, 9 are lifted, the lifted drive wheels 9, 9 are still idle, and the bogie 7 is driven by two wheels only of the other drive wheels 9, 9.
, And the bogie side edge on the raised side is
In order to prevent overturning by holding it with another idler wheel 11 that rolls on the lower side of the rail surface, and at the corner, in order to eliminate the speed difference due to the difference between the inner and outer wheels, the outer side rail is located at the intermediate position of the drive shaft on the underside of the bogie. The two free wheels 13 are lifted by the idler wheels 13 with the jacks 12 provided so as to be in rolling contact with each other, and the other two wheels are driven and driven, so that the entire upper surface of the framed scaffold including the corners can be run round without fear of falling. is there.

In the present invention, a four-wheel drive system is used in which the drive wheels 9, 9 on both sides are driven by a drive motor at the center of a drive shaft mounted on the front and rear of the lower surface of the bogie. When the bogie is tilted due to one-sided load on the jib crane when lifting materials, each drive wheel on each side of the drive shaft slightly lifts up on the rail upper surface. The rolling wheels 11, 11 contact and roll to the lower side of the rail surface, and hold and prevent further inclination to prevent overturning.
The two-wheel drive on the other side is ensured and traveling continues. In a running state in which all four driving wheels are in contact with the ground, the idler wheels 11, 11 are separated from the lower surface of the rail to maintain a gap and eliminate resistance.

[0012] In the case of a curved running at a corner, the speed difference due to the difference between the inner and outer wheels cannot be adjusted by the simultaneous driving of the four wheels. Of the idler wheel 13 with the jack 12 provided in the
The jack 12 is extended so that the idler wheel 13 at the lower end is brought into contact with the outer rail surface so as to lift up the outer drive wheel, eliminate the speed difference as only the inner drive wheel is run, smoothly run the curve, and run normally. Then, the jack 12 is contracted, and the idler wheel 13 is suspended above the rail by the bias of the spring 14. Therefore, the jib crane can be safely driven without any risk of overturning even with a single load due to the lifting material, even when traveling in a straight line as well as in a curved section, and the construction material is
While being lifted by the winch of the boom arm 4 of the jib crane, at the same time, it is moved to the construction position by running the bogie, and the boom arm can be swung and lowered at the construction location, so that the outer wall attaching work is extremely safe and efficient. Therefore, only one place for storing the materials is required, and the construction period is significantly shortened. In addition, each operation of the jib crane can be controlled by an inverter, and the operation is a push button operation, but can be performed by a wireless method. Furthermore, rails can be temporarily laid vertically and horizontally using the steel frame that is being assembled, and the jib crane can be moved in the XY directions to move the material freely. In some cases, the material can be taken in horizontally on each floor. is there.
Further, the swivel angle of the boom arm can be fully rotated by 360 degrees by the slip ring method, and the jib crane can be easily transported and stored by the part split method of the hoist, the boom, the post, and the bogie.

[0013]

As described above, according to the present invention, a safety traveling jib crane for preventing overturning is integrated on the top surface by maximizing the strength of the conventional scaffold including the unused space. It is possible to lift and move materials at the same time without lifting from the material storage place in several places, the material supply to the construction place is safe and efficient, and the work efficiency of attaching the outer wall of the steel frame is significantly improved, It has an excellent effect of shortening the construction period and saving costs.

[Brief description of the drawings]

FIG. 1 is a front view showing a device of the present invention.

FIG. 2 is a side view showing a running state of the present invention.

FIG. 3 is a main part front view showing a state where one drive wheel of the method of the present invention is lifted.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 steel frame 2 frame scaffold 3, 3 rail 4 boom arm 5 swivel post 6 jib crane 7 bogie 8 drive motor 9, 9 drive wheel 10, 10 drive shaft 11 idle wheel 12 jack 13 idle wheel 14 spring

Continuing from the front page Examiner Minoru Torii (56) References JP-A-8-245174 (JP, A) JP-A 8-84693 (JP, A) Full-scale sho 59-21354 (JP, U) (58) Survey Field (Int.Cl. ⁷ , DB name) B66C 9 / 04,23 / 26,23 / 88

Claims (2)

(57) [Claims] 1. A rail including four corners is laid on the top of a framed scaffold assembled on four sides of a high-rise steel frame while a building is being constructed, and a jib crane bogie is driven by four-wheel drive on the rail. I rolled it so that I could run it, and on the bottom of the bogie,
Drive shafts are arranged and supported in front and back, and four wheels are driven by the drive wheels on both sides driven by the central drive motor, and the load on one side of the jib crane when lifting the material is the drive of either rail on the bogie. Even if the wheels are raised, the raised drive wheel is left idle, and the bogie is continuously driven by the two-wheel drive of the other grounded drive wheel only. In addition to holding the wheels on the rails to prevent overturning, at the corners, the idle running wheels with jacks provided on the underside of the bogie allow only two wheels on one side to drive, allowing for curved running without considering the speed difference between the inner and outer wheels. The framed scaffolding and jib crane are integrated with the entire upper surface of the framed scaffold including the jib crane, making it possible to make a round trip without falling over even with a single jib crane load. Orbiting traveling method of Bukuren. 2. Two rails 3, 3 including four corners are laid at the top of a framed scaffold 2 assembled on four sides of a steel frame 1 under construction, and a boom is placed on the rails 3, 3. Dolly 7 of jib crane 6 consisting of arm 4 and swivel post 5
The vehicle 7 is driven by four-wheel drive so as to be self-propelled. Even if the load applied to one side of the jib crane 6 for lifting the material causes the drive wheels 9, 9 of any one of the rails of the bogie 7 to float, the raised drive wheel 9, 9 is allowed to idle. , The other drive wheel 9, 9
The traveling of the truck 7 is continued by the two-wheel drive, and the bogie-side edge on the raised side is held by another idler wheel 11 which is brought into rolling contact with the lower side of the rail surface to prevent overturning. In order to run on a curve without considering the speed difference of the wheel difference,
The jib crane is characterized in that it is driven by only two wheels on one side by the idler wheels 13 with the jacks 12 provided on the underside of the bogie, and is capable of traveling around the entire upper surface of the framed scaffold including the corner without fear of falling. Traveling device.