JPH04319180A - Mast type skeleton frame rising and falling mechanism - Google Patents

Abstract

PURPOSE:To facilitate assembly and disassembly of a shoring mast and to promote work efficiency by making it possible to avoid interference with the rising and falling of a skeleton frame, designing the skeleton frame and a building without being restricted by the shoring mast and a rising and falling mechanism, and having simple construction as a whole. CONSTITUTION:An upper rising and falling frame 4 and a lower rising and falling frame 5 erected upward and downward of a mast body 3a formed in a column shape so that they are capable of loading and unloading have an interval capable of expansion by hydraulic cylinders 6 arranged between both upper and lower frames. A mast base 3c is mounted to the lower end 3b of the shoring mast 3 so that it is capable of tuning. The first load bearing section 3d and the second load bearing section 4b are so constituted that they are capable of folding.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mast type frame elevating mechanism suitable for use in elevating the frame of a building when constructing the frame of the building.

0002

[Prior Art] Conventionally, when building the frame of a building, a lifting mechanism such as a hydraulic cylinder was installed on a steel column fixed to the frame as a lifting mechanism for raising and lowering the frame of the building on site. There are those that are supported by this lifting mechanism so that they can be raised and lowered freely, those that are lifted and lowered by sliding the steel column out of the frame by a lifting mechanism attached to the frame, and those that are lifted and lowered along existing steel columns. The structure frame is supported by temporary pillars that are placed in place to allow it to be raised and lowered.

0003

[Problems to be Solved by the Invention] However, in the case of the above-mentioned lifting mechanism, the design of the frame and the building is such that it is difficult to secure the mounting position of the lifting mechanism and to prevent interference between the frame and the existing parts of the building during lifting and lowering. The problem was that there were many restrictions to avoid this. In addition, when constructing a building, it is basically necessary to install a lifting mechanism on all the steel columns of the building, so the work of assembling and dismantling the mechanism was difficult.

Furthermore, when using temporary supports, it is necessary to use a temporary support of an appropriate size depending on the scale of the frame, and if the frame is large, the temporary support is also large, so it is difficult to assemble the temporary support, It takes time to dismantle it, and it does not fundamentally solve the problems mentioned above.

The present invention has been made in view of the above-mentioned problems, and allows the frame to be easily raised and lowered.
The object of the present invention is to provide a mast-type frame lifting mechanism that is easy to assemble and disassemble, and improves work efficiency in building construction.

[0006]

[Means for Solving the Problems] A mast type frame lifting mechanism of the present invention is a mast type frame lifting mechanism that lifts a building frame along a column mast that supports the frame. A mast body extending along the column mast, upper and lower elevating frames that are removably attached to the upper and lower parts of the mast body, respectively, and an extensible mechanism disposed between these elevating frames to extend and contract the frame up and down. The above-mentioned problem is solved by providing an assembly mechanism that is provided on each of the elevating frames and assembles the elevating frame to the mast body.

[0007]

[Operation] According to the mast type frame lifting mechanism of the present invention, it can be constructed in a simple manner in a building, and it can be constructed so as to avoid interference with the frame or existing structures.

[0008] Furthermore, the mast type frame lifting mechanism is as follows:
Since the overall structure is simple, assembly and disassembly are easy, and the efficiency of these operations is improved.

[0009]

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 to 18.
The mast type frame elevating mechanism (hereinafter simply referred to as elevating mechanism) of this embodiment, which will be described with reference to , constitutes a construction mechanism for constructing the building 1 by being incorporated into the building 1.

As shown in FIGS. 1 and 2, the elevating mechanism is
A support mast 3 assembled perpendicularly to a beam 2 built into the underground part of a building 1, an upper elevating frame 4 and a lower elevating frame 5 that are removably attached above and below this support mast 3, and these upper elevating frames. 4 and a hydraulic cylinder 6 disposed between the lower elevating frame 5 and vertically extending and contracting each of these frames.

As shown in FIGS. 3 and 4, the prop mast 3
is a columnar mast body 3a formed with a square cross section;
The mast base 3c is attached to the lower end 3b of the mast body 3a. Pin holes 3d are formed at regular intervals on the side surface of the mast body 3a. Two mast bases 3c are fixed to each of the pair of opposing side surfaces of the lower end 3b at positions that coincide with each other. Each mast base 3c has a plate shape, and has a lower end 3
The mast body 3a extends horizontally from the mast body 3a, and has a bottom surface that is a flat surface that coincides with the lower end surface of the mast body 3a, and a foldable first load support portion 3e is attached to each end. Further, each mast base 3c is configured to be rotatable about the mast body 3a in conjunction with each other.

As shown in FIGS. 1 and 2, the upper elevating frame 4 includes an upper frame main body 4a installed with one side surface in contact with the mast main body 3a, and this upper frame main body 4.
a and a second load support part 4b formed at the other end of the load support part 4b. The upper frame main body 4a is formed in a rectangular shape when viewed from the front, and an upper lock pin device 4c is provided at the upper part. The upper lock pin device 4c is attached to a position in contact with the mast body 3a, and is configured to be detachable from the pin hole 3d. The second load support portion 4b is formed to be foldable.

As shown in FIGS. 1 and 2, the lower elevating frame 5 includes a lower frame main body 5a formed in contact with the mast main body 3a at the upper part, and a lower frame main body 5a extending downward from the lower frame main body 5a to form the mast base 3c. The leg portion 5b is formed to match the end portion. Lower frame body 5
A is formed in a dogleg shape, and the end portion connected to the leg portion 5b is inclined downward. At the top of the lower frame body 5a,
A removable lower lock pin device 5c is attached to the pin hole 3d at a position in contact with the mast body 3a. Leg 5
b is formed in a box shape except for the bottom surface, and is overlapped with the first load supporting portion 3e to cover its outer surface.

The hydraulic cylinder 6 includes a cylinder body 6a formed in a cylindrical shape, a first rod 6b extending upward from the upper end of the cylinder body 6a, and a second rod 6c extending downward from the lower end of the cylinder body 6a. It is made up of. The cylinder main body 6a has an upper end attached to the upper frame main body 4a, and
A is supported rotatably in the horizontal direction. The first rod 6b extends and retracts from the cylinder body 6a, and has a lower end rotatably attached to the lower frame body 5a to support the lower frame body 5a rotatably in the horizontal direction.

[0015] The first load support part 3e, the second load support part 4b, and the leg part 5b are configured so that a removable beam lock pin device 7 can be attached to the beam 2 constituting the building 1. .

The operation of the elevating mechanism will be explained below.

The construction of the building 1 using the lifting mechanism described above is carried out as follows. First, as shown in FIGS. 4 and 5, the support mast 3 is assembled on a frame constructed in the underground part of the building 1. The prop mast 3 is formed by dividing into appropriate sizes, and is assembled by stacking and joining the component parts. Next, a lifting mechanism is constructed at the bottom of each column mast 3. The elevating mechanism is configured as shown in FIG. 7 in the above configuration above each mast base 3c.

As shown in FIG. 5, when the structure of the elevating mechanism is completed, the frame frame 1 is mounted on the upper part of the upper frame main body 4a.
Assemble a. The frame 1a rests its weight on the upper frame body 4a by placing its lower part on the upper surface of the upper frame body 4a.

When the assembly of the frame 1a is completed, as shown in FIG. 6, the upper frame body 4a is driven to raise the frame 1a. When the frame 1a reaches the upper end of the mast, it stops rising, and the frame 1a and mast 3 are connected to complete the construction mechanism. The construction mechanism is movable in the vertical direction by vertical movement of the column mast 3. As shown in FIG. 3, the construction mechanism is configured to be able to horizontally transport the pillars 1c that are being erected and constitute the building 1 using a trolley device 1b provided on the frame 1a.

[0020] The prop mast 3 is raised by the elevating mechanism as follows. First, as shown in FIG. 7, the lifting mechanism is set on the mast body 3a so that the leg portion 5b is placed over the first load supporting portion 3e. The beam lock pin device 7 fixes the first load support part 3e to the beam 2 by being set on the first load support part 3e. Note that all other lock pin devices are unlocked. After the setting of the elevating mechanism is completed, as shown in FIG. 8, the beam lock pin device 7 is also set on the second load support part 4b, and the second load support part 4b is moved 1 from the first load support part 3e.
It is fixed to the beam 2 located above the stage, and the lower lifting frame 5 is raised by operating the hydraulic cylinder 6 and contracting the second rod 6c. Next, as shown in FIG. 9, the lower lock pin device 5c is fixed in the pin hole 3d, and the second rod 6c is extended to raise the upper elevating frame 4. Then, as shown in FIG. 10, the upper lock pin device 4c
is fixed in the pin hole 3d, and by reducing the hydraulic cylinder 6, the lower elevating frame 5 is raised to the upper beam 2, and the leg part 5b is fixed to this beam 2 by the beam lock pin device 7, and the upper elevating frame 4. Complete the movement of the lower lifting frame 5 and hydraulic cylinder 6.

Subsequently, as shown in FIG. 11, the leg portion 5b and the lower lock pin device 5c are locked to support the weight of the column mast 3, and the first load support portion 3e is unlocked to open the hydraulic cylinder 6. By contracting the column, the column mast 3 is pulled upward. After the first load support part 3e is unlocked, it is folded. After the column mast 3 is pulled up to the appropriate position, the upper lifting frame 4 is then reinstalled upward by unlocking the upper locking pin device 4c and extending the hydraulic cylinder 6, as shown in FIG. Then, as shown in FIG. 13, after locking the upper lock pin device 4c, the lower lock pin device 5c is unlocked, the hydraulic cylinder 6 is extended again, and the mast 3
Raise it to the upper beam 2. Thereafter, by repeating the downward reinstallation of the upper elevating frame 4 and the extension of the hydraulic cylinder 6, the mast body 3a is raised until it is on a predetermined beam 2.

[0022] While the column mast 3 is moving, interference between the mast base 3c and the building 1 is avoided by appropriately rotating the mast base 3c. Furthermore, interference between the upper elevating frame 4 and the lower elevating frame 5 and the building 1 is also avoided by rotating the second load support section 4b and the leg section 5b, respectively.

The column mast 3 that has been pulled up onto the upper beam 2 is installed by expanding the first load supporting portion 3e and resting the entire load on this beam 2.

On the other hand, lowering the column mast 3 using the elevating mechanism is performed as follows. First, as shown in FIG. 14, the upper lock pin device 4c of the elevating mechanism is unlocked, and as shown in FIG. 15, after locking the upper frame main body 4a, the lower elevating frame is Raise 5. Then,
As shown in FIG. 16, the second load support part 4b and the lower lock pin device 5c are locked and the rear upper frame body 4a is locked.
By unlocking and extending the hydraulic cylinder 6, the column mast 3 is lowered together with the lifting frame 5. Then, as shown in FIG. 17, the lower end portion 3b of the column mast 3 that has been lowered to an appropriate position is disassembled and carried out. Thereafter, by repeating the lowering of the column mast 3 and the disassembly and removal of the lower end portion 3b, the mast body 3a is disassembled and the column mast 3 is lowered, as shown in FIG.

According to the elevating mechanism constructed as described above, it can be constructed in a simple manner in the building 1, and at the same time, the mast base 3c is constructed to be rotatable.
Since the first load support part 3e and the second load support part 4b are configured to be foldable, interference between the support mast 3 and the frame 1a or existing structures can be avoided by operating these parts appropriately. Therefore, the structure frame 1a and the building 1 can be designed without being restricted by the support mast 3 or the elevating mechanism.

[0026] Furthermore, since the overall structure of the lifting mechanism is simple, assembly and disassembly of the column mast 3 is easy;
The efficiency of these operations will improve. At the same time, since the lifting mechanism can support the entire load of the prop mast 3 and support the prop mast 3 at an appropriate height, the lifting mechanism can support the prop mast 3.
The safety of demolition and removal work will be improved.

[0027]

As explained above, according to the mast type frame lifting mechanism of the present invention, the mast type frame lifting mechanism lifts the frame of a building along the column mast that supports the frame. A mast body that extends along the prop mast, upper and lower elevating frames that are removably attached to the upper and lower parts of the mast body, and a frame that is disposed between these elevating frames and expands and contracts the frame vertically. and an assembling mechanism provided on each of the elevating frames and assembling the elevating frame to the mast body, it can be constructed in a simple manner in a building, and the mast and the upper part can be constructed in a simple manner. By providing a horizontally movable portion in the lower elevating frame, interference between the elevating column mast and the frame frame or existing structures can be avoided. Furthermore, as a result, the structural frame and the building can be designed without being restricted by the support mast or the upper and lower elevating frames.

Furthermore, since the mast-type frame elevating mechanism has a simple overall structure, it is easy to assemble and disassemble the column mast, improving the efficiency of these operations. At the same time, the mast type frame lifting mechanism can support the entire load of the prop mast and support the prop mast at an appropriate height, improving the safety of the dismantling and removal work of the prop mast.

[Brief explanation of drawings]

FIG. 1 is a front view showing the mast type frame frame elevating mechanism of this embodiment when the telescoping mechanism is extended.

FIG. 2 is a front view of the telescopic mechanism when it is contracted;

FIG. 3 is an overall view showing a construction mechanism for a building in which the mechanism is installed.

FIG. 4 is a plan view showing the position of the mechanism installed in the existing frame.

FIG. 5 is an overall view showing an initial state of the configuration of the construction mechanism by the mechanism installed in an existing frame constructed underground.

FIG. 6 is an overall view showing a method of configuring the construction mechanism.

FIG. 7 is a diagram illustrating an initial state of the method of raising the column mast according to the present embodiment using the mast type frame frame lifting mechanism.

FIG. 8 shows the next steps following FIG. 7 of the method.

FIG. 9 is a diagram illustrating the next step following FIG. 8 of the method;

FIG. 10 shows the next steps following FIG. 9 of the method;

FIG. 11 shows the next steps following FIG. 10 of the method.

FIG. 12 shows the next steps following FIG. 11 of the method.

FIG. 13 shows the completion state of the method.

FIG. 14 is a diagram showing an initial state of the method for lowering the prop mast of the present embodiment using the mechanism.

FIG. 15 shows the next step following FIG. 14 of the method.

FIG. 16 is a diagram illustrating the next step following FIG. 15 of the method.

FIG. 17 is a diagram showing a method of disassembling the lower end of the column mast.

FIG. 18 is a diagram showing a method of dismantling a column mast.

[Explanation of symbols]

1 Building 1a Frame 3 Post mast 3a Mast body 4 Upper elevating frame 4c Upper lock pin device (assembling mechanism) 5 Lower elevating frame 5c Lower lock pin device (assembling mechanism) 6 Hydraulic cylinder (telescopic mechanism)

Claims (1)

[Claims] Claim 1: A mast-type frame lifting mechanism for lifting a building frame along a column mast supporting the frame, comprising a mast body extending along the column mast, and the mast body. upper and lower elevating frames that are removably attached to the upper and lower parts of the mast; a telescoping mechanism that is disposed between these elevating frames to extend and contract the frames up and down; and an assembly that is provided on each of the elevating frames and assembles the elevating frames to the mast body. A mast-type frame lifting mechanism characterized by comprising a mechanism.