JP6866604B2 - Lifting device - Google Patents

Description

The present invention relates to a lifting device for lifting construction materials.

For example, a large space building such as an outdoor stadium or a concert hall is provided with a roof covering the large space. In Patent Document 1, spectator seats are installed so as to surround the field, and a cantilever type roof is provided above the spectator seats. These cantilever type roofs include a roof eaves frame and a roof eaves frame. It has a roof plate installed on the upper surface of the.

Japanese Unexamined Patent Publication No. 8-277643

When further installing the eaves panel on such a roof, the installation method is to insert a crane hook or wire of a large lifting machine so as to penetrate the opening of the roof eaves frame from above the roof eaves frame. Suspend, and let these crane hooks and wires hang the eaves panel that has been grounded. After that, the eaves panel is lifted to the lower surface of the roof eaves frame, the installation position and the installation angle are adjusted, and then the eaves panel is attached to the roof eaves frame.

In the above method, the work of adjusting the installation position and the installation angle on the roof frame is required for the eaves panel suspended by a crane hook or a wire. However, since these operations are manually performed by the worker, the operations are complicated and require a great deal of time and effort.

Further, the eaves panel is suspended by a crane hook or a wire at the position of the center of gravity, but the portion of the roof frame that becomes the position of the center of gravity when the eaves panel is installed is not always open. For this reason, it was necessary to position the roof skeleton at the planned installation position while appropriately changing the eaves ceiling panel, which was inferior in workability.

The present invention has been made in view of such a problem, and a main object thereof is lifting, which enables a simple operation to position a construction material to be installed at a high place with respect to a planned installation position. To provide a device.

In order to achieve such an object, the lifting device of the present invention includes a material support mechanism on which construction materials are placed, an elevating mechanism capable of elevating the material support mechanism, and a trolley on which the elevating mechanism is installed. The lifting device includes a lower frame installed above the elevating mechanism and an attitude control mechanism for controlling the placement posture of the construction material, and the posture control mechanism is provided. , Each of which is erected on the lower frame and is composed of four columns having a variable length .

According to the lifting device of the present invention described above, the attitude control mechanism for controlling the placement posture of the construction material to be mounted on the material support mechanism is provided. As a result, when installing construction materials in high places, the construction materials can be placed on the material support mechanism in a posture corresponding to the installation posture at the planned installation position using the attitude control mechanism. The lifting device can transport and lift the vehicle to its planned installation position while maintaining the installation posture. Therefore, it is possible to significantly reduce the labor required for positioning at a high place as compared with the case where the work is carried out while being suspended by a crane or the like.

The lifting device of the present invention is characterized by comprising a level adjusting mechanism at the top end of the attitude control mechanism for finely adjusting the height direction of the attitude while the construction material is placed on the material support mechanism. And.

Further, the lifting device of the present invention is characterized by including a horizontal adjusting mechanism for finely adjusting the position of the material supporting mechanism with respect to the carriage in the horizontal direction.

According to the lifting device of the present invention described above, when the construction material is placed on the material support mechanism, its posture is displaced by the load of the construction material itself, or the installation position of the construction material is displaced. Even in this case, it is possible to easily and accurately perform the positioning work without manually moving the position of the construction material or moving the lifting device itself.

According to the present invention, when a construction material is installed in a high place, the construction material can be transported and lifted to the planned installation position by a lifting device while maintaining the installation posture, and the construction material can be transported and lifted in a high place. It is possible to significantly reduce the labor required for positioning by using a crane or the like as compared with the case where the work is carried out while being suspended.

It is a figure which shows the outline of the weighting apparatus of this invention. It is a figure which shows the detail of the horizontal adjustment mechanism of the Yang weight device in this invention. It is a flow figure which shows the use procedure of the weighting apparatus of this invention. It is a figure which shows the usage method of the heavy weight device of this invention (the 1). It is a figure which shows the usage method of the heavy weight device of this invention (the 2).

The lifting device of the present invention is suitable for positioning a construction material to be installed at a high place such as a roof of a large space building such as a concert hall or a ceiling of a tunnel at a planned installation position. It is a device that can be used for. The details will be described below with reference to FIGS. 1 to 5.

As shown in FIGS. 1 and 5, the lifting device 20 is in a state in which the trolley 21 capable of traveling on the work floor 11, the material support mechanism 23 on which the construction material 4 is placed, and the construction material 4 are placed. The material support mechanism 23 is provided with an elevating mechanism 22 capable of pushing up the material support mechanism 23 to the planned installation position.

The trolley 21 includes a gantry 211 and casters 212, and may be either self-propelled or non-self-propelled as long as it can travel on the work floor 11. Further, the caster 212 may be provided with a stopper, and the gantry 211 may be provided with an outrigger. An elevating mechanism 22 is installed on the upper surface of the gantry 211.

The elevating mechanism 22 includes a telescopic device 221 and an upper frame 222. The expansion / contraction device 221 is capable of expanding and contracting in the vertical direction, and its lower end is installed on the gantry 211. In the present embodiment, a pantograph jack is adopted as the telescopic device 221 but the present invention is not necessarily limited to this, and a hydraulic jack or the like may be adopted. A rectangular upper frame 222 in a plan view is installed at the top end of the telescopic device 221 to move the upper frame 222 up and down. A material support mechanism 23 is installed on the upper frame 222 via a horizontal adjustment mechanism 24 described later.

The material support mechanism 23 includes an attitude control mechanism 231, a level adjustment mechanism 232, and a lower frame 233. The lower frame 233 has the same shape as the upper frame 222 in a plan view, but is formed in a reduced size, and the attitude control mechanism 231 is installed on the upper surface thereof.

The attitude control mechanism 231 is a mechanism that controls the placement posture of the construction material 4 mounted on the material support mechanism 23 so as to correspond to the shape of the construction material 4 and the installation posture at the planned installation position. In the present embodiment, the attitude control mechanism 231 employs four columns having a variable length. These have a double pipe structure of an outer pipe and an inner pipe, and both the outer pipe and the inner pipe are provided with a plurality of holes in parallel along the axial direction on the peripheral surface.

Then, when it is desired to increase the length, the inner tube is projected from the outer tube by a desired amount, and a pin is inserted into both holes at the same height position. The support column is not necessarily limited to this, and may have a structure in which a plurality of detachable cylinders are appropriately combined. With such a configuration, by appropriately changing the length of each of the four columns, the construction material 4 can be held in a flexible mounting posture such as a horizontal state or an inclined state.

Therefore, when the construction material 4 is installed in a high place, the construction material 4 is placed on the material support mechanism 23 in a posture corresponding to the installation posture at the planned installation position by using the attitude control mechanism 231. By setting the mechanism, the lifting device 20 can carry and lift the equipment to the planned installation position while maintaining the installation posture. In this way, it is possible to significantly reduce the labor required for positioning at a high place as compared with the case where the work is carried out while being suspended by a crane or the like.

Further, the level adjusting mechanism 232 is provided at the top end of the attitude control mechanism 231 and is installed at the top end of each of the four columns in the present embodiment. In this embodiment, a hydraulic jack is used for the level adjustment mechanism 232, which makes it possible to finely adjust the posture of the construction material 4 mounted on the attitude control mechanism 231 in the height direction. Become.

The horizontal adjustment mechanism 24 arranged between the elevating mechanism 22 and the material support mechanism 23 having the above-described configuration finely adjusts the horizontal position and orientation of the material support mechanism 23 with respect to the carriage 21 and is shown in FIG. As described above, it is provided with a sliding bearing 241 and three adjusting screws 242, 243, and 244. The sliding bearing 241 is made of a resin sliding plate, and is arranged between the upper frame 222 provided in the elevating mechanism 22 and the lower frame 233 provided in the material support mechanism 23.

Then, the first adjusting screw 242 and the second adjusting screw 243 are arranged near both ends of one long side of the lower frame 233, respectively, and the second of the short side located on the second adjusting screw 243 side. A third adjusting screw 244 is arranged in the vicinity of the adjusting screw 243 of 2.

The first adjusting screw 242 and the second adjusting screw 243 are arranged so that the screw rod is orthogonal to the long side of the lower frame 233, and the wing nut screwed to the screw rod is fixed to the upper frame 222. Further, a reverse nut screwed into the screw rod is fixed to the long side of the lower frame 233.

On the other hand, in the third adjusting screw 244, the screw rod is arranged so as to be orthogonal to the short side of the lower frame 233, and the wing nut screwed to the screw rod is fixed to the upper frame 222, and also to the screw rod. A reverse nut to be screwed is fixed to the short side of the lower frame 233. Therefore, when the screw rod is rotated in the forward direction, the distance between the wing nut and the reverse nut becomes wide, and when the screw rod is rotated in the opposite direction, the distance between the two becomes narrow.

As a result, when it is desired to move the material support mechanism 23 in the Y direction on FIG. 2, the screw rods of the first adjusting screw 242 and the second adjusting screw 243 are rotated in the forward or reverse direction by the same number of rotations. To do. Further, when it is desired to move the material support mechanism 23 in the X direction on FIG. 2, the third adjusting screw 244 is rotated in the forward direction or the reverse direction. Further, when it is desired to rotate the material support mechanism 23 in the Z direction on FIG. 2 to change the direction , the first adjusting screw 243 and the third adjusting screw 244 are fixed and the first adjusting screw is fixed. The 242 may be rotated in the forward direction or the reverse direction.

With the above configuration, even when the construction material 4 is placed on the material support mechanism 23, the packaging shape is deformed by the load of the construction material 4 itself, or the installation position of the construction material 4 is displaced. It is possible to easily and accurately perform the positioning work without manually moving the position of the construction material 4 or moving the lifting device 20 itself.

Further, in the present embodiment, as shown in FIG. 1, the terminal device 25 is installed on the carriage 21 of the lifting device 20. The terminal device 25 is a so-called notebook personal computer or tablet terminal, and includes an arithmetic processing unit 251, an input unit 252, a display unit 253, a storage unit 254, and the like.

The arithmetic processing device 251 is a computer having a CPU, GPU, ROM, RAM, a hardware interface, and the like. The input unit 252 is an input device such as a switch and a keyboard. The display unit 253 is a display that displays a screen. The storage unit 254 is a storage device including a semiconductor memory, a hard disk drive, or the like, and stores a program that can be executed by the arithmetic processing unit 251. When the arithmetic processing unit 251 executes the program, various functions of the arithmetic processing unit 251 are realized.

The method of using the elevating mechanism 22 having the above-described configuration is given as an example of attaching the eaves ceiling panel 41 to the lower surface of the roof frame 3 when constructing the roof 2 of the large space building 1, and while following the flow diagram of FIG. This will be described below.

In the present embodiment, as shown in FIG. 4, the work stage 10 is assembled below the roof frame 3, the lifting device 20 travels on the work stage 10, and the eaves ceiling panel 41 is positioned. Assumed to be performed.

Further, in the present embodiment, an identification number (ID) is assigned to each of the eaves panel 41, and the shape of each eaves panel 41, the installation posture when positioning the roof frame 3, and the azimuth angle are provided. , And create a correspondence table in which information necessary for positioning work such as the push-up height is associated with the ID. On the other hand, this correspondence table is stored in the storage unit 254 of the terminal device 25 installed in the lifting device 20.

First, the ID of the eaves ceiling panel 41 to be installed on the roof skeleton 3 is input to the terminal device 25 of the elevating device 20 via the input unit 252 (Step 1). Then, the information necessary for mounting the eaves panel 41 having the same ID is taken out from the correspondence table stored in the storage unit 254 and displayed on the display unit 253 of the terminal device 25.

Based on the information regarding the installation posture of the eaves ceiling panel 41 displayed on the display unit 253 of the terminal device 25, the attitude control mechanism 231 of the material support mechanism 23 provided in the lifting device 20 is operated (Step 2). After that, the eaves ceiling panel 41 is lifted by a crane or the like and placed on the material support mechanism 23 (Step 3). As a result, the eaves ceiling panel 41 is placed on the material support mechanism 23 in the installation posture when it is positioned on the roof frame 3.

Next, as shown in FIG. 5, the lifting device 20 on which the eaves panel 41 is placed is moved to just below the planned installation position of the eaves panel 41 (Step 4). At this time, the position of the center of gravity of the eaves panel 41 when the eaves panel 41 is installed on the roof frame 3 and the position of the center of gravity of the eaves panel 41 mounted on the lifting device 20 are coaxial in the vertical direction. It is good to be located on the top.

After these operations, the lifting device 20 is installed on the work stage 10, and the expansion / contraction device 221 is set to a desired amount based on the information on the push-up height of the eaves panel 41 displayed on the display unit 253 of the terminal device 25. The eaves panel 41 is pushed up to the planned installation position (Step 5). If necessary, the level adjustment mechanism 232 finely adjusts the attitude of the eaves panel 41 in the height direction, and the horizontal adjustment mechanism 24 finely adjusts the horizontal position and orientation of the eaves panel 41 to finely adjust the eaves. The panel 41 is positioned at the planned installation position of the roof frame 3 (Step 7).

After the above work is completed, the eaves ceiling panel 41 is temporarily fixed to the roof frame 3, the telescopic device 221 is shortened, and the lifting device 20 is moved to the load receiving area 12 provided on the work stage 10 (Step 8). And Step 9). These operations are repeated until all the eaves panels 41 have been installed (Step 10).

As described above, by transporting and lifting the eaves ceiling panel 4 by the lifting device 20, it is possible to easily perform positioning when installing on the roof skeleton 5 by a simple procedure.

The lifting device 20 of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the gist of the present invention.

In the present embodiment, the horizontal adjustment mechanism 24 is installed between the elevating mechanism 22 and the material support mechanism 23. It may be installed between the carriage 21 and the elevating mechanism 22. Further, the sliding bearing 241 of the horizontal adjusting mechanism 24 is not limited to the sliding plate made of resin, and any one may be adopted as long as it is generally used as a sliding material.

Further, in the present embodiment, the attitude control mechanism 231 is composed of four columns. For example, if the construction material 4 is a rod-shaped material made of a steel frame or the like, at least two of them and the construction material 4 are panels. As long as it has a planar shape such as, it may be configured to include at least three columns.

Further, the attitude control mechanism 231 does not necessarily have to include a plurality of columns. For example, as a structure for controlling the posture of the construction material 4 mounted on the attitude control mechanism 231 by installing a flat plate on the top end of one support column via a universal joint and adjusting the angle of the flat plate with respect to the support column. May be good.

1 Large space building 2 Roof 3 Roof frame 4 Construction materials 41 Eaves panel 10 Work stage 11 Work floor 12 Loading area 20 Lifting device 21 Carriage 211 Stand 212 Caster 22 Lifting mechanism 221 Telescopic device 222 Upper frame 23 Material support mechanism 231 Attitude Control mechanism 232 Level adjustment mechanism 233 Lower frame 24 Horizontal adjustment mechanism 241 Sliding support 242 First adjustment screw 243 First adjustment screw 244 First adjustment screw 25 Terminal device 251 Arithmetic processing device 252 Input unit 253 Display unit 254 Storage unit

Claims (3)

A lifting device including a material support mechanism on which construction materials are placed, a lifting mechanism capable of raising and lowering the material supporting mechanism, and a trolley on which the lifting mechanism is installed.
The material support mechanism includes a lower frame installed above the elevating mechanism and an attitude control mechanism for controlling the placement posture of the construction material .
The attitude control mechanism is a lifting device , each of which is erected on the lower frame and is composed of four columns having a variable length. The lifting device according to claim 1.
A lifting device characterized in that a level adjusting mechanism for finely adjusting the height direction of the posture is provided at the top end of the attitude control mechanism in a state where the construction material is placed on the material support mechanism. The lifting device according to claim 1 or 2.
A lifting device including a horizontal adjusting mechanism that finely adjusts the position of the material supporting mechanism with respect to the carriage in the horizontal direction.

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