JPH0610525U - Simple crane for building construction work - Google Patents

Abstract

(57) [Summary] [Purpose] The structure of the shed can be freely opened / closed or moved at all or part of the work site so that it can be carried in and out of materials and equipment, and especially lifts such as guide posts. (EN) Provided is a simple crane for a building construction work building, which can easily set up equipment for construction. [Structure] A plurality of portal-type frame structural frames 1 and a membrane material stretched between the frame structural frames 1 so as to be foldable, and the whole or part of the construction site on the top floor of the building A under construction In a shed C installed to be opened and closed by an accordion system so as to selectively cover the frame, a girder 14a is attached to the frame structure frame 1, and a hoisting device 14 is installed along the girder 14a.
Attach b movably.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a simple crane for a building construction work shed.

[0002]

[Prior art]

 Buildings such as general RC (reinforced concrete) structures adopt the so-called top-floor precedent construction method, which is constructed sequentially toward the upper floors, and the construction site on the top floor is always exposed to wind and rain, and heat and cold. It is in a harsh environment. As a result, the construction is easily affected by the weather and the working environment is harsh, so that there are problems such as difficulty in securing workers.

Conventionally, as a measure for solving such a problem, a fixed-type shed is installed on the uppermost floor part under construction, a shed is moved horizontally, or a lift-up device such as a large crane is installed. There was one that installed a lift-up type shed using.

However, the above-mentioned conventional shed is difficult to apply to a tall building, and it requires dismantling, moving, and assembling using a crane or the like to replace the skeleton, and the equipment is large. However, there were problems such as small openings for loading and unloading materials and equipment.

[0005]

[Problems to be solved by the device]

 The present invention has been made to solve the above-mentioned conventional problems, and its purpose is to make it possible to freely open and close the whole or part of the work site or move the construction of the shed. By doing so, it is possible to provide a simple crane for a building construction work that can facilitate the loading and unloading of materials and equipment, and especially the setting of lifting equipment such as guide posts.

[0006]

[Means for Solving the Problems]

 The simple crane of the building construction work of the present invention is composed of a plurality of portal frame structures and a membrane material stretched between the frame frames so as to be foldable. In a shed that can be opened and closed by an accordion method to selectively cover all or part of the construction site on the floor, a girder is attached to the frame structure frame, and a hoisting device is movably attached along the girder. It is characterized by that.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, A is a building under construction, and a temporary scaffold B is attached around it. The building A may be RC structure, SRC (steel frame reinforced concrete) structure, S (steel frame) structure, or the like as long as it is constructed by the top floor preceding construction method. Incidentally, a non-scaffolding construction method in which the temporary scaffold B is omitted may be used.

Reference numeral C denotes a shed, which is a plurality of gate-shaped frame structural frames 1 (see FIG. 2) composed of a column base 1a and a roof 1b of a steel truss, and roofs of these frame structural frames 1. It is composed of the membrane material 2 stretched between the portions 1b, and is constructed so as to be opened and closed in an accordion system as a whole. This film material 2 is a permanent film material that has been fireproofed and flameproofed. The film material 2 may be stretched between the column bases 1a. In particular, in heavy snowfall areas, snow melting heaters are attached to the frame structure frame 1 to enable snow melting.

As is clear from FIG. 3, the frame structure frames 1 at the center and both sides in the opening / closing direction are integrally reinforced by the braces 1c, and the membrane material 2'is not folded. Incidentally, if there is no risk of falling or the like, the reinforcement by these braces 1c is not always necessary, and that of the central portion may be omitted in particular.

By increasing or decreasing the number of the frame structure frames 1, the length of the roof C in the opening / closing direction can be adjusted according to the length of the building A in the girder direction. Further, by increasing or decreasing the truss frame of the roof portion 1b of the frame structure frame 1, it is possible to adjust the span direction of the roof C according to the length of the building A in the beam direction. Furthermore, by changing the length of the column base 1a of the frame structure frame 1, the height of the roof C can also be adjusted. Therefore, it can be diverted to another building having a different planar shape and size.

As shown in FIG. 4, traveling wheels 3 are attached to the lower ends of the column bases 1 a of the frame structure frame 1 so as to move while rolling on rails 4. A side roller 5 is arranged so as to sandwich the abdomen of the rail 4 from both sides, and prevents the roof C from being lifted up by a strong wind or the like.

The rail 4 is fixed on a traveling girder 6 made of H-shaped steel or the like. As is clear from FIG. 2, the traveling girder 6 is attached to the temporary scaffold B in the girder row direction. When the temporary scaffold B is omitted, it is directly attached to the building A structure. In FIG. 3, reference numeral 6a is a girder receiving bracket to which a height adjusting jack is attached.

Since the roof C of this embodiment is configured as described above, the frame structure frames 1 on both sides are moved along the running girders 6 from the closed state shown in FIG. 1 (A). Then, the membrane material 2 on the way opens sequentially in an accordion manner and becomes the fully opened state shown in Fig. 1 (B), covering the entire construction site on the top floor of building A and being affected by wind, rain and cold. It is possible to carry out the construction in a planned manner. Opening and closing of the shed C may be performed by an electric drive device such as an electric winch.

Further, by partially opening the roof C, it is also possible to partially open the site and carry in / out the work of loading / unloading the equipment with a crane or the like. In this way, the roof C can be moved as a whole in the closed state in addition to being opened and closed in an accordion manner. In addition, at the time of normal setting, as shown in FIG. 3, it is fixed to the body of the building A by a wire W.

Next, the lift-up of the above-mentioned shed C will be described.

Two guide posts 7 made of H-shaped steel are erected on the outside of the temporary scaffold B in the column direction. The distance between the two guide posts 7 is set so as to substantially match the width (length) when the roof C is closed (state in FIG. 5). The number of guide posts 7 can be increased if necessary. In the present embodiment, the guide post 7 is installed in the substantially central portion of the building A, but it may be located at any position outside the temporary scaffold B in the girder direction. 7a is a brace.

As is clear from FIGS. 5 and 6, a lift-up device D is attached to the guide post 7. The lift-up device D is composed of an upper guide unit 8, a lower guide unit 9, a motor cylinder 10, etc., as shown in an enlarged view in FIG. A running girder 6 and a rail 4 are laid on the upper guide unit 8.

The upper guide unit 8 is provided with four guide rollers 8a as shown in an enlarged view in FIG. The guide roller 8a rolls on the outer surface of the flange of the guide post 7 while guiding the upper guide unit 8 up and down along the guide post 7 to move. The guide unit 8 has a hole 8c for inserting the pin 8b, and the web of the guide post 7 has a hole 7b so that the pin 8a can be inserted and removed freely. As shown in FIG. 7, the lower guide unit 9 is also provided with four guide rollers 9a in the same manner, and the pin 9b is inserted therein so as to be freely inserted and removed.

As shown in FIG. 7, a gear box 11 is attached to the outer side of the guide unit 8 so that the rotational driving force of the drive shaft 12 causes the telescopic rod 10a in the motor cylinder 10 to telescopically operate. The tip of the telescopic rod 10a is connected to the lower guide unit 9 via a connecting pin 10b.

As shown in FIG. 5, the drive shafts 12 of the left and right lift-up devices D are simultaneously driven to rotate by a geared motor 13 with a brake arranged in the middle. 13a is a coupling.

Since the lift-up device D and its drive system of the present embodiment are configured as described above, as shown in FIG. 9, at the stage where the construction work of the uppermost floor A ′ of the building A has advanced to some extent. Then, the lift-up work of the warehouse C is started.

First, as shown in FIG. 10, the temporary scaffold B'is hoisted by the simple crane 14 including the girder 14a and the hoisting device 14b mounted on the roof C, and set on the outside of the top floor A '. To do. Then, similarly, the guide post 7'is lifted up and added onto the guide post 7.

As shown in FIG. 11, the guide posts 7 ′ are fixed to the frame of the building A ′ by the wall tie members 15, and as shown in FIG. 3, the left and right guide posts 7 ′ are braced to each other 7 a. To reinforce. When the preparation for the lift-up is completed, the wire W is removed, the roof C is closed, and the rail 4 and the running girder 6 of the lift-up portion are separated from those on both sides. The rails 4 and the running girders 6 on both sides that have been separated are remounted by a separate crane or the above-mentioned simple crane 14 and attached.

In the lift-up operation, first, as shown in FIG. 12A, the pin 8b is pulled out from the upper guide unit 8 to release the connection with the guide post 7. The lower guide unit 9 is still connected and fixed to the guide post 7.

When the geared motor 13 (see FIG. 5) is operated in this state, the left and right drive shafts 12 rotate and the left and right lift-up devices D are simultaneously operated. The rotational force of the drive shaft 12 causes the telescopic rod 10a to extend downward from the motor cylinder 10. Since the lower guide unit 9 is fixed, when the telescopic rod 10a extends, the upper guide unit 8 rises due to its reaction, as shown in FIG. 12 (B). At the same time, the traveling girder 6 rises and lifts the shed C. When the upper guide unit 8 rises and its hole 8c is aligned with the hole 7a of the guide post 7, the pin 8b is inserted to fix the upper guide unit 8 to the guide post 7.

Next, the pin 9b of the lower guide unit 9 is pulled out to release the connection. Then, when the geared motor 13 is rotated in the opposite direction, the drive shaft 12 is rotated in the reverse direction to retract the telescopic rod 10a into the motor cylinder 10. When the telescopic rod 10a retracts, the lower guide unit 9 rises as shown in FIG. 12 (C). When the lower guide unit 9 moves up and its hole 9a coincides with the hole 7a of the guide post 7, the pin 9b is inserted and the lower guide unit 9 is fixedly connected to the guide post 7 again.

The above-described series of operations shown in FIGS. 12A to 12C is repeated a necessary number of times to raise the lift-up device D along the guide posts 7 and the roof C. Lift up. The raised shed C is opened again as shown in FIG. 1 (B) and fixed by the wire W before use.

In the above-mentioned lift-up operation, the left and right lift-up devices D are simultaneously operated by one geared motor 13 to lift up the running girder 6 while keeping it horizontal, but on the opposite side of the building A. Similarly, the two gear-up devices D located at the same position are simultaneously driven by the common geared motor 13.

As shown in FIG. 13, the geared motors 13 on both sides of the building A are synchronized by the central operation panel 16 to operate the four climbing devices D at the same timing. Make sure that the entire C is lifted up safely while maintaining a horizontal position.

In the above-described embodiment, the lift-up is performed by the mechanical method such as the geared motor 13 and the motor cylinder 10, but the lift-up is not limited to this and may be hydraulically driven by a hydraulic cylinder or the like. In this case, the motor cylinder 10 of the climbing device D is a hydraulic cylinder, and the geared motor 13 is a hydraulic pump panel. If the level C of the rising roof C exceeds the predetermined tilt amount, the operation is stopped or the level is adjusted so that the level is adjusted.

FIG. 14 shows another embodiment in which each climbing device D is an independent motor cylinder 10 or hydraulic cylinder, and is directly connected to the central operation panel 17 for control. In this example as well, the level sensor controls the ascent while checking the inclination of the roof C.

In the case of a strong wind or a strong wind, as shown in FIG. 15, the roof C is closed and lifted down for safety, and also serves as a cure at the construction site.

When the construction work is completed, the frame material and the film material are dismantled on the rooftop, and then the above-mentioned lift-up device is operated in reverse to lower it to the ground and remove it.

[0034]

[Effect of device]

 1) It is possible to easily and efficiently carry in and out materials and equipment, and refill work for lift-up equipment such as guide posts. 2) There is no need for a large lifting machine such as a tow truck.

[Brief description of drawings]

FIG. 1A is a perspective view of an embodiment of the present invention with a telescopic shed closed, and FIG. 1B is a perspective view of the shed opened.

FIG. 2 is an end view of the shed seen from the wife side of the building.

FIG. 3 is a side view of the shed seen from the girder side of the building.

FIG. 4 is an enlarged explanatory view of the traveling moving device at the lower end of the shed.

FIG. 5 is a front view of a lift-up device.

FIG. 6 is a side view of a lift-up device.

FIG. 7 is an enlarged side view of the lifting device with a part broken away.

FIG. 8 is an enlarged cross-sectional view taken along the line EE in FIG.

FIG. 9 is a side view of the device before the lift-up operation.

FIG. 10 is an explanatory diagram of a work of mounting the uppermost guide post.

FIG. 11 is an explanatory diagram of completion of attachment of the uppermost guide post.

FIG. 12 is a view for explaining the action of the lifting device.

FIG. 13 is an explanatory diagram of lift-up control by a control panel.

FIG. 14 is an explanatory diagram of another embodiment of lift-up control.

FIG. 15 is an explanatory diagram showing a state where the shed is lifted down.

[Explanation of symbols]

 1 Shed 1a Column base 1b Roof 1c Brace 2 Membrane material 2'Membrane material 3 Traveling wheel 4 Rail 5 Side roller 6 Traveling girder 6a Girder receiving bracket 7 Guide post 7a Bracing 7b Hole 8 Upper guide unit 8a Guide roller 8b pin 8c hole 9 lower guide unit 9a guide roller 9b pin 10 motor cylinder 10a telescopic rod 10b connecting pin 11 gear box 12 drive shaft 13 geared motor 13a coupling 14 simple crane 14a girder 14b hoisting device 15 wall connecting material 16 central operation panel 17 Central control panel A Building B Temporary scaffolding C Shed D Climbing device W Wire

Claims (1)

[Scope of utility model registration request] 1. A whole or a part of a construction site on the uppermost floor of a building under construction, which comprises a plurality of portal-shaped frame structural frames and a membrane material stretchably foldable between the frame structural frames. In a shed that is installed so that it can be opened and closed by an accordion method so that it selectively covers, a girder is attached to the frame structure frame,
A simple crane for a building construction shed, wherein a hoisting device is movably attached along the girder.