A system for transporting and installing heavy objects, a guide device used in the system, a jack-up device, and a method for transporting and installing heavy objects.

Abstract

To provide a heavy article carrying-in installation system capable of carrying in and placing a heavy article in a stable state while improving workability, and to provide a guide device used for the system, a jack-up device and a heavy article carrying-in installation method therefor.SOLUTION: A trestle 1 comprises: guide devices 21; and a jack-up device 41 provided with a claw jack 43. The guide device 21 comprises roller means 22, a first guide 23 and a second guide 24, and is movable on the trestle 1 without deviating therefrom. PAC 11 is lifted at a carrying-in position by a lifting device, placed on the respective guide devices 21, and conveyed to a fixing position. Upon conveyed to the fixing position, the PAC 11 is lifted up by the claw jack 43. Meanwhile, the respective guide devices 21 are removed and the PAC 11 is jacked down to complete installation thereof onto the trestle 1.SELECTED DRAWING: Figure 13

Description

Technical Field

[0001] The present invention relates to a heavy object carrying and installing system, a guide device used in the system, a jack-up device, and a method for carrying and installing a heavy object. Background Art

[0002] Conventionally, box-shaped floor-standing PAC (package air conditioners) have been used as commercial air conditioners for large facilities such as factories. In large facilities including commercial facilities such as factories and supermarkets, in order to effectively utilize the floor area of the structural floor that allows pedestrian access and installation of production equipment, a trellis-like floor surface assembled only with steel frames for lifting air conditioners such as floor-standing PAC indoor units is sometimes provided at a mezzanine position where people do not pass through at ordinary times. If several floor-standing PAC indoor units of the same model or with uniform depth dimensions are arranged and installed for air conditioning the large space of a large facility, only a small area of the trellis-like floor surface is required, and the initial cost can be reduced. In this case, it is cost-effective to extend steel frame supports, which serve as a substitute for foundations for installing floor-standing PAC indoor units, in a straight line for the number of floor-standing PAC indoor units (hereinafter referred to as PACs) to be arranged and installed, with an extra margin.

[0003] Since a PAC is a heavy object, when conveying and moving the PAC from a carrying-in position to a predetermined fixed position (installation position), lifting (transportation to the fixed position and installation) by a large hoisting mechanism is generally performed (see, for example, Patent Document 1). Incidentally, a pair of steel frame supports extending in parallel in the horizontal direction are previously laid at the fixed position. Owing to the presence of the steel frame supports, it is possible to lift the PAC through any opening of the trellis-like floor surface, move it horizontally on the trellis-like floor surface, lift it again onto the steel frame supports at different levels, and fix a plurality of PACs in parallel on the steel frame supports.

[0004] By the way, in cases where the distance from the loading area to the designated fixed position (installation location) is large (for example, around 50m), such as in a factory, even if there is a permanent lifting mechanism such as an overhead crane, its range of motion is limited, making it impractical to transport and move the goods from the loading area on the trellis-like floor to the fixed position using only the aforementioned lifting mechanism.

[0005] In the case described above, there are mainly two possible methods for delivery and installation.

[0006] The first method involves first installing relatively simple lifting devices, such as chain blocks, on the ceiling beams near the entrance (loading position) and near the fixed position of the trellis-like floor, using scaffolding (a stepladder scaffolding with multiple stepladders and scaffolding boards, a standing horse, etc.). Then, the PAC is lifted using the lifting device near the entrance and placed on a large industrial trolley, and the trolley is moved to the side of the steel frame frame at the fixed position. During this process, thick plywood or concrete panels are laid down as needed to create a closed, flat surface on the trellis-like floor. After moving, the PAC on the trolley is lifted using the lifting device at the fixed position and fixed in place on the steel frame frame, completing the installation of the PAC.

[0007] The second method involves first extending the steel frame from its fixed position to the vicinity of the entrance to the trellis-like floor (the loading position). Then, multiple rollers (for example, steel pipes) are placed on the steel frame near the loading position, perpendicular to the steel frame. After that, the PAC is lifted using a lifting device near the entrance to the trellis-like floor (the loading position) and placed on the multiple rollers. The PAC is then transported to its fixed position on the steel frame by pulling it with ropes or pushing it by hand. During this process, the front and rear positions of the rollers are changed or adjusted as needed according to the movement of the PAC. Once the PAC arrives at the fixed position, the rollers are removed while adjusting the PAC's position, and the PAC is fixed onto the steel frame, completing the installation of the PAC. [Prior art documents] [Patent Documents]

[0008] [Patent Document 1] Japanese Patent Application Publication No. 9-126540 [Overview of the project] [Problems that the invention aims to solve]

[0009] However, the first method requires lifting the PAC twice: once near the entrance on the trellis-like floor (the loading position) and again at the fixed position. Each time the PAC is lifted, scaffolding or lifting equipment may need to be set up. In addition, if the floor is uneven and vibrations during movement are a concern, it may be necessary to lay down plywood or similar materials as needed, which will lead to an increase in working time.

[0010] Furthermore, in the second method, the rollers that span perpendicular to the steel frame are not fixed, raising concerns that the PAC will gradually tilt as it moves. Therefore, the transport operation must be carried out with the utmost care to prevent the PAC from falling off, and in some cases, the PAC may be transported in an unstable state. In addition, when moving the PAC using the rollers to the fixed position and finally removing the rollers, the PAC will slide down by the height of the rollers, making it extremely difficult to align the fixing holes on the steel frame with the fixing holes on the PAC, and ultimately requiring lifting even at the fixed position.

[0011] The present invention was made to solve the problems illustrated above, and its purpose is to provide a heavy object loading and installation system that can load and install heavy objects in a stable state while improving work efficiency, a guide device used in the system, a jack-up device, and a method for loading and installing heavy objects. [Means for solving the problem]

[0012] The following sections will describe each means suitable for achieving the above objectives. Additionally, specific effects and benefits of each means will be noted as needed.

[0013] Means 1. A system for transporting and installing heavy objects, which are transported to a predetermined transport position, to install and fix a plurality of predetermined heavy objects in parallel at predetermined fixed positions on a pair of steel frame frames extending parallel to each other and installed indoors, The pair of steel frame structures extend from the loading position to the fixed position, On the pair of steel frame supports, a pair of guide devices are provided, one in the front and one in the back, that are movable along each of the steel frame supports and that can support the heavy object and temporarily fix the supported heavy object. In the aforementioned loading position, a lifting device for lifting the heavy object and placing it on the guide device, A jacking device comprising a base portion that can be temporarily installed at or near the fixed position and is suspended on the pair of steel frame frames, and a jacking device installed on the base portion. A system for transporting and installing heavy objects, characterized by having the following features.

[0014] According to method 1, each guide device provided on a pair of steel frame structures can move along the steel frame structures, place heavy objects on them, and secure the placed heavy objects. Furthermore, by using a lifting device provided at the loading position, it is possible to lift heavy objects, place them on each guide device, and secure them. In other words, heavy objects brought into the loading position can be lifted using the lifting device, placed on each guide device, and secured, thereby enabling them to move along the steel frame structures.

[0015] Furthermore, the steel frame structure extends from the loading position to the fixed position, and heavy objects attached to each guide device are transported from the loading position to the fixed position by being pulled with ropes or pushed by hand.

[0016] Then, once the heavy object reaches its fixed position, the guide devices and temporary fastenings are released, and it is lifted using jack-up devices (jack-up equipment). While the heavy object is being lifted, the guide devices are removed from the steel frame, allowing the lifted heavy object to be placed on the steel frame in its fixed position.

[0017] According to this method, lifting heavy objects is performed only once at the loading position. Therefore, unlike conventional methods, there is no need to lift the object twice, once at the loading position and once at the fixing position. This avoids the need to set up scaffolding or lifting equipment each time, resulting in a dramatic improvement in work efficiency.

[0018] Furthermore, with this method, heavy objects can be smoothly moved along the steel frame via each guide device. In other words, the steel frame functions as a rail, and the guide device functions as a mechanism to move along that rail, so there is no risk of the guide device, and consequently the heavy object, deviating from the steel frame. Therefore, unlike conventional techniques that required moving heavy objects while laying down plywood or other materials, or transporting them by placing rollers one after another with utmost care, it is possible to transport them to a fixed position in a stable state and with ease.

[0019] Furthermore, in fixed positions, heavy objects can be lifted on the spot using simple jack-up devices instead of lifting equipment, allowing each guide device to be quickly removed from the steel frame, thus reducing working time.

[0020] Means 2. The guide device comprises a base on which the heavy object can be placed, and a roller means comprising rollers that can slide on the steel frame base, The heavy object loading and installation system according to means 1, further comprising a pair of left and right guide means fixed to both sides of the roller means and guiding both sides of the steel frame base.

[0021] According to Means 2, since each guide device includes roller means, each guide device can be smoothly moved on the steel frame stand, and heavy objects installed on each guide device can be transported more quickly.

[0022] Further, according to this means, each guide device includes a pair of left and right guides that guide both side portions of the steel frame stand. Therefore, when moving on the steel frame stand, it is possible to prevent a situation where each guide device is largely displaced in a direction orthogonal to the steel frame stand, and as a result, heavy objects can be transported in a more stable state.

[0023] Means 3. The carrying platform portion has a fixing portion that is open to the upper surface and provided with a screw hole corresponding to a hole formed in a lower portion of the heavy object, and the heavy object can be fixed to the carrying platform portion by fastening with a bolt in a state where the hole and the screw hole are aligned, which is the heavy object carrying-in and installation system according to Means 2.

[0024] According to Means 3, the heavy object and each guide device can be easily and reliably fixed by fastening with a bolt in a state where the hole formed in the lower portion of the heavy object is aligned with the screw hole of the carrying platform portion of the guide device. As a result, the heavy object can be transported in an even more stable state. In addition, by presetting the position where the permanent installation hole opened on the upper surface of the steel frame stand and the hole formed in the lower portion of the heavy object are aligned (threaded) in advance, and aligning the position of the screw hole in the carrying platform portion of the guide device, there is no need to form unnecessary holes.

[0025] Means 4. The pedestal portion of the jack-up device is detachably provided to the steel frame stand, which is the heavy object carrying-in and installation system according to Means 1.

[0026] According to method 4, for example, when jacking up a heavy object, if the heavy object is lifted from the front, and only the front guide devices are removed from the steel frame, and then the rear guide devices are removed using the same procedure, after the removal of the front guide devices is complete, the front base can be removed and installed at the rear, eliminating the need to install the base in two locations, front and rear. In other words, the number of bases required can be reduced as much as possible, and the position of the bases can be easily changed. In addition, even in cases other than those described above (for example, when multiple heavy objects are installed side by side on the same steel frame), it is possible to flexibly respond by moving the position of one base as appropriate.

[0027] Means 5. A guide device used in the heavy object transport and installation system described in Means 3.

[0028] According to method 5, the same effects as those of method 3 are achieved.

[0029] Means 6. A jack-up device used in the heavy object transport and installation system described in Means 4.

[0030] According to method 6, the same effects and advantages as those of method 4 are achieved.

[0031] Means 7. A method for transporting and installing heavy objects to temporarily install and fix a predetermined heavy object, which has been transported to a predetermined transport position, at a predetermined fixed position on a pair of steel frame frames extending parallel to each other and installed indoors, The pair of steel frame structures extend from the loading position to the fixed position, and a lifting device capable of lifting the heavy object is provided at the loading position. A guide device installation step involves installing a guide device capable of supporting the aforementioned heavy object and temporarily fixing the supported heavy object on each of the pair of steel frame frames, in pairs, front and rear, so as to be movable along each of the steel frame frames. The lifting and installation process involves using the lifting device to lift the heavy object at the aforementioned loading position, placing it on the guide device, and then fixing it in place. A transport process in which the heavy object and the guide device are transported to the fixed position on the pair of steel frame supports, In the aforementioned fixed position, the jacking device is temporarily installed by hanging the base portion on the pair of steel frame supports and installing the jacking device on the base portion, thereby temporarily installing the jacking device comprising the base portion and the jacking device. A jacking-up step in which the guide device is removed from the heavy object and the heavy object is lifted using the jacking-up device, A guide device removal step, which involves removing the guide device from the pair of steel frame supports, A method for transporting and installing heavy objects, characterized by comprising a heavy object installation step of placing and fixing the heavy objects onto the pair of steel frame supports.

[0032] According to method 7, the heavy object is lifted using a lifting device provided at the loading position, placed on each guide device provided on a pair of steel frame frames, and fixed in place. Next, the heavy object placed on each guide device is transported from the loading position to the fixing position by pulling with ropes or pushing by hand. At the fixing position, a jack-up device is installed on the pair of steel frame frames. Once the heavy object reaches the fixing position, it is released from its attachment to each guide device and lifted using the jack-up device (jack-up equipment). While the heavy object is being lifted, each guide device is removed from the steel frame frames, and the lifted heavy object is placed on the steel frame frames at the fixing position.

[0033] According to this method, lifting heavy objects is performed only once at the loading position. Therefore, unlike conventional methods, there is no need to lift the object twice, once at the loading position and once at the fixing position. This avoids the need to set up scaffolding or lifting equipment each time, resulting in a dramatic improvement in work efficiency.

[0034] Furthermore, with this method, heavy objects can be smoothly moved along the steel frame via each guide device. In other words, the steel frame functions as a rail, and the guide device functions as a mechanism to move along that rail, so there is no risk of the guide device, and consequently the heavy object, deviating from the steel frame. Therefore, unlike conventional techniques that required moving heavy objects while laying down plywood or other materials, or transporting them by placing rollers one after another with utmost care, it is possible to transport them to a fixed position in a stable state and with ease.

[0035] Furthermore, in fixed positions, heavy objects can be lifted on the spot using simple jack-up devices instead of lifting equipment, allowing each guide device to be quickly removed from the steel frame, thus reducing working time. [Brief explanation of the drawing]

[0036] [Figure 1] This is a perspective view showing the mounting structure. [Figure 2] This is a perspective view showing the PAC (Plant-Assisted Design). [Figure 3] This is a perspective view showing the frame with the guide device and jack-up device installed. [Figure 4] This is a perspective view showing the guide device. [Figure 5] This is an exploded perspective view showing the guide device. [Figure 6] Cross-sectional view of the JJ line in Figure 3 [Figure 7] This is a perspective view showing the base. [Figure 8] This is an exploded perspective view showing the base. [Figure 9] Cross-sectional view of the KK line in Figure 3 [Figure 10] This is a perspective view showing a claw jack. [Figure 11] This is a perspective view showing the claw jack in the jacked-up position. [Figure 12]This is a perspective view showing the guide device with the PAC installed. [Figure 13] This is a perspective view showing the PAC (Pedestrian Aid) just before its front side is jacked up. [Figure 14] This is a perspective view showing the PAC (Pedestrian Aid) with its front side jacked up. [Figure 15] This is a perspective view showing the PAC with its front side jacked up and each guide device removed. [Figure 16] This is a perspective view showing the PAC with its rear side jacked up and each guide device removed. [Figure 17] This is a perspective view showing the PAC installed in a fixed position. [Modes for carrying out the invention]

[0037] One embodiment will be described below with reference to the drawings.

[0038] First, in this embodiment, we will describe the PAC (packaged air conditioner) 11, which is a heavy object that is to be delivered and installed.

[0039] As shown in Figure 2, the PAC11, as a heavy object, comprises a roughly rectangular prism-shaped housing 12 and a vibration isolation device 13 attached to the lower surface of the housing 12. The vibration isolation device 13 comprises an upper frame 14, a spring 15 acting as a vibration absorber, and a lower frame 16. Of the lower frame 16, each short side has two holes 17.

[0040] Furthermore, various devices (motors, sirocco fans or plug fans, heat exchangers, etc.) are installed inside the enclosure 12. After the PAC 11 is installed, by operating these devices, it becomes possible to ensure an optimal temperature that is suitable for the surrounding environmental conditions, even in large facilities such as factories.

[0041] Next, the system for transporting and installing the PAC11 will be described. In this embodiment, the PAC11 is transported from a designated transport location within the facility near the entrance of the factory by a lifting device such as an overhead crane to a transport position near the entrance of the trellis-like floor. The PAC11 is then transported to a specific fixed position (installation area) within the factory, where it is finally installed and fixed. In this embodiment, a pair of rail-shaped frames 1 (steel frames) are laid from the transport position to the fixed position. A lifting device (not shown) is also provided at the transport position. The lifting device is composed of a relatively simple chain block or the like, and the PAC11 is lifted by this lifting device.

[0042] As shown in Figure 1, each pair of support frames 1 comprises a channel steel 5 (C-channel) having an upper flange 2, a web 3, and a lower flange 4, and legs 6 that support the channel steel 5. Each support frame 1 has substantially the same shape and extends parallel to each other. A hole 7 is provided in each upper flange 2 at a predetermined position.

[0043] In this embodiment, as shown in Figure 3, a guide device 21 and a jack-up device 41 can be attached to the frame 1.

[0044] As shown in Figures 4 and 5, the guide device 21 comprises a roller mechanism 22, a first guide 23, and a second guide 24. In this embodiment, the guide mechanism is composed of the first guide 23 and the second guide 24. The roller mechanism 22 comprises a main body 25, a base portion 27 provided in the center of the main body 25 and having screw holes 26, and a pair of rollers 28 provided front and rear. The main body 25 has four holes 29, and each guide 23 and 24 has two holes 30 corresponding to each hole 29.

[0045] Furthermore, when installing each guide device 21 onto the frame 1, as shown in Figure 6, first, the roller mechanism 22 is placed on the upper surface of the upper flange 2 (channel steel 5). At this time, each roller 28 is in contact with the upper flange 2 (channel steel 5). After that, the holes 29 of the main body 25 (roller mechanism 22) and the holes 30 of each guide 23, 24 are aligned, and the main body 25 is clamped between the guides 23, 24. Then, bolts 31 are inserted into the holes 29, 30 and fastened with nuts 32, completing the installation of the guide device 21. At this time, a slight gap is created between the web 3 (channel steel 5) and each guide 23, 24.

[0046] As shown in Figure 3, each frame 1 is equipped with a total of four guide devices 21, two at the front and two at the rear.

[0047] Furthermore, the jack-up device 41 is basically attached to the frame 1 in the fixed position and comprises a base portion 42 that is suspended on the frame 1 and a claw jack 43 that is placed on the base portion 42.

[0048] As shown in Figures 7 and 8, the base portion 42 comprises a plate-shaped stage 45 with hook portions 44 on both the left and right sides, an L-shaped stopper 46 attached to the upper surface of each hook portion 44, a fixing plate 47 located below each hook portion 44, and a reinforcing angle 48 welded to the lower surface of the stage 45 on the side spaced away from the hook portion 44. In addition, each hook portion 44 is provided with two holes 49 at the front and rear, and corresponding to these holes 49, each stopper 46 is provided with two holes 50, and each fixing plate 47 is provided with two holes 51.

[0049] Furthermore, when installing (temporarily installing) the jack-up device 41 onto the frame 1, as shown in Figure 9, first, the hooks 44 on both sides are placed on the frame 1, thereby suspending the stage 45 between the pair of frames 1. Then, the holes 49 of the hooks 44, the holes 50 of the stoppers 46, and the holes 51 of the fixing plate 47 are aligned on both the left and right sides, and the upper flange 2 (channel steel 5) is sandwiched between the hooks 44, the stoppers 46, and the fixing plate 47. Finally, bolts 52 are inserted into the holes 49, 50, and 51 and fastened with nuts 53, completing the installation of the base 42.

[0050] As shown in Figure 10, the claw jack 43 comprises a base 61, an operating section 62 for adjusting the jack-up height, a hydraulic tank 63, a shaft 64 extending vertically from inside the hydraulic tank 63 and capable of moving up and down, and a jack-up section 65 connected to the shaft 64. A claw section 66 is also provided at the lower part of the jack-up section 65, protruding on the opposite side from the operating section 62.

[0051] When using the claw jack 43, as shown in Figure 11, the shaft 64 is first raised by repeatedly moving the operating part 62 up and down. In conjunction with the movement of the shaft 64, the jack-up part 65 (claw part 66) also rises, and the object is lifted (jacked up). After lifting, the jack-up part 65 (claw part 66) can be lowered by loosening the release valve (not shown) of the claw jack 43.

[0052] Next, we will explain each step involved in the delivery and installation of the PAC11 mentioned above.

[0053] Prior to delivery and installation, two guide devices 21 are attached to the front and rear of each frame 1 at the delivery position, as described above. This attachment is carried out according to the installation procedure of the guide devices 21 described above.

[0054] Furthermore, the jack-up device 41 is attached to the frame 1 in advance at the aforementioned fixed position. This attachment is carried out according to the installation procedure of the jack-up device 41 described above.

[0055] Now, the PAC11, which is lifted and moved from the loading area into the facility near the factory entrance by a crane or the like (not shown) and brought to the loading position near the loading entrance on the trellis-like floor, is lifted using the chain block as a lifting device, with the suspension point being attached to a ceiling beam or the like near the loading entrance.

[0056] Then, as shown in Figure 12, the holes 17 provided on the short side of the lower frame 16 of the lifted PAC11 are aligned with the screw holes 26 of the base portion 27 of each guide device 21. The lower frame 16 (PAC11) is then placed on each base portion 27 (each guide device 21), and bolts 71 are inserted from above each hole 17 and each screw hole 26 and fastened. This attaches the PAC11 to the guide device 21. After that, the chain block that was attached to the PAC11 is removed.

[0057] Next, the PAC11 installed on each guide device 21 is transported from the loading position to the fixed position by pushing it by hand. At this time, the rollers 28 of each guide device 21 roll, causing the PAC11 to move smoothly along the upper flange 2 (channel steel 5). Alternatively, the PAC11 may be towed using a rope or the like.

[0058] Then, as shown in Figure 13, once the PAC 11 reaches near the fixed position where it is intended to be installed, the PAC 11 is moved and adjusted so that it is in the correct fixed position (so that each hole 7 of the upper flange 2 is positioned below each bolt 71 provided on the lower frame 16). At this time, the stoppers 46 provided on the base portion 41 prevent each guide device 21 from falling off the tip of the frame 1. After that, the position of the claw jack 43 is adjusted so that the claw portion 66 of the claw jack 43 is located below the center of the lower frame 16.

[0059] Next, as shown in Figure 14, remove the two bolts 71 on the front (right side in the figure) of the lower frame 16. Then, by jacking up the claw jack 43 according to the operating procedure described above, the rising claw portion 66 will come into contact with the front lower frame 16, and the lower frame 16 (PAC11) will be lifted. While the PAC11 is lifted, remove the two front guide devices 21 from the base 1 as shown in Figure 15. After that, by loosening the release valve of the claw jack 43, jack down the claw portion 66 and the front lower frame 16 (PAC11). As a result, the front lower frame 16 will be placed on the upper flange 2, and the positions of the holes 17 in the lower frame 16 will be aligned with the positions of the holes 7 in the upper flange 2. At this time, for safety reasons, it is desirable to align the holes 7 and 17 and then temporarily fasten them.

[0060] Next, as shown in Figure 16, the front jack-up device 41 is moved to the rear and installed. Then, following the same procedure as described above, a series of operations are performed, this time jacking up the rear of the PAC11, removing each guide device 21, and jacking down.

[0061] Subsequently, as shown in Figure 17, the bolts 71 are inserted into the respective holes 7 and 17 and fastened with nuts (not shown), thereby fixing the PAC 11 to the frame 1 and completing the installation of the PAC 11 in its fixed position.

[0062] Furthermore, when transporting and installing multiple PAC11 units, the above procedure will be repeated. In this case, the fixing position can be changed to a different position as appropriate. Of course, the rail-shaped frame 1 can be branched as needed, or multiple pairs of frame 1 can be installed in advance. Here, multiple PAC11 units are fed in sequentially using a pair of frame 1 as rails, so the designated PAC11 that is fixed at the furthest position from the transport position is fed in first, and the above procedure is repeated.

[0063] As detailed above, in this embodiment, the PAC11 is lifted only once at the loading position. Therefore, unlike in the past, there is no need to lift it twice, once at the loading position and once at the fixed position, and the need to set up scaffolding and lifting equipment each time is avoided, resulting in a dramatic improvement in work efficiency.

[0064] Furthermore, in this embodiment, the PAC11 can be smoothly moved on the frame 1 via each guide device 21. That is, the frame 1 functions as a rail, and the guide devices 21 function as mechanisms that move along the rail, so there is no risk of the guide devices 21, and consequently the PAC11, deviating from the frame 1. Therefore, unlike conventional technology, which required moving the PAC11 while laying down plywood or the like, or carefully transporting it by passing it on rollers one after another, it is possible to transport it to a fixed position in a stable state and easily.

[0065] Furthermore, since each guide device 21 has a roller mechanism 22, each guide device 21 can be moved smoothly on the frame 1, making it possible to transport the PAC 11 installed on each guide device 21 more quickly.

[0066] In addition, each guide device 21 is equipped with guides 23 and 24 that guide the web 3 of the frame 1. Therefore, when moving on the frame 1, it is possible to prevent each guide device 21 from being displaced significantly in a direction perpendicular to the frame 1.

[0067] Furthermore, by aligning the holes 17 formed in the lower frame 16 of the PAC 11 with the screw holes 26 in the base portion 27 of the guide device 21 and fastening them with bolts 71, the PAC 11 and each guide device 21 can be easily and securely fixed together. As a result, the PAC 11 can be transported in an even more stable state.

[0068] Furthermore, in the fixed position, the PAC11 can be lifted on the spot by using a portable claw jack 43 instead of a lifting device. This allows each guide device 21 to be quickly removed from the frame 1, thereby reducing working time. As a result, work efficiency can be dramatically improved.

[0069] Furthermore, the base portion 42 is detachable from the frame 1. Therefore, it is not necessary to install the base portion 42 in two locations, front and rear. In other words, it is possible to minimize the number of base portions 42 required and to easily change the position of the base portion 42. In addition, even in cases other than those described above (for example, when multiple PAC 11s are installed side by side on the same frame 1), it is possible to flexibly accommodate this by appropriately moving the position of one base portion 42.

[0070] Furthermore, the embodiment is not limited to the description above, and may be implemented as follows, for example. Of course, other applications and modifications not exemplified below are also possible.

[0071] (a) In the above embodiment, the frame 1 is provided with a channel steel 5 (C channel) with a C-shaped cross-section, but the cross-sectional shape is not particularly limited. For example, steel materials with an I-shaped, H-shaped, or T-shaped cross-section may be used.

[0072] (b) In the above embodiment, PAC11 is given as an example of a heavy object, but the heavy object to be handled is not limited to PAC11. Therefore, it can also be applied to the delivery and installation of large refrigerators or large instruments, for example.

[0073] (c) In the above embodiment, the lifted PAC11 is placed on each guide device 21 and then fixed to each guide device 21 using bolts 71, but it is not necessary to fix it (it is sufficient to simply place it on top).

[0074] (d) In the above embodiment, four guide devices 21 are provided for each pair of frames 1, but the number of installation locations may be six or eight, as long as at least one pair is provided for the front and rear of each frame 1.

[0075] (e) In the above embodiment, a chain block is used as the lifting device, but it does not necessarily have to be a chain block. For example, a wire hoist or a forklift equipped with a lifting hook may be used.

[0076] (f) In the above embodiment, a claw jack 43 is used as the jacking device, but it does not necessarily have to be a claw jack 43. For example, a table lift or a vehicle-mounted garage jack may be used. [Explanation of symbols]

[0077] 1...frame, 11...PAC as a heavy object, 17...hole, 21...guide device, 22...roller means, 23...first guide, 24...second guide, 26...screw hole, 27...base, 28...roller, 41...jack-up device, 42...base, 43...claw jack.

Claims

1. A system for transporting and installing heavy objects, which is transported to a predetermined transport position, and for installing and fixing multiple predetermined heavy objects in parallel at predetermined fixed positions on a pair of steel frame frames extending parallel to each other installed indoors, The pair of steel frame structures extend from the loading position to the fixed position, On the pair of steel frame supports, a pair of guide devices are provided, one in the front and one in the back, that are movable along each of the steel frame supports and that can support the heavy object and temporarily fix the supported heavy object. In the aforementioned loading position, a lifting device for lifting the heavy object and placing it on the guide device, A jacking device comprising a base portion that can be temporarily installed at or near the fixed position and is suspended on the pair of steel frame frames, and a jacking device installed on the base portion. A system for transporting and installing heavy objects, characterized by having the following features.

2. The guide device includes a base on which the heavy object can be placed, and a roller means equipped with rollers that can slide on the steel frame base, The heavy object loading and installation system according to claim 1, further comprising a pair of left and right guide means fixed to both sides of the roller means and guiding both sides of the steel frame base.

3. The heavy object transport and installation system according to claim 2, characterized in that the base portion has a fixing portion that opens on its upper surface and has a screw hole corresponding to a hole formed in the lower part of the heavy object, and the heavy object can be fixed to the base portion by fastening it with a bolt while the hole and the screw hole are aligned.

4. The heavy object transport and installation system according to claim 1, characterized in that the base portion of the jack-up device is detachably provided with respect to the steel frame.

5. A guide device used in the heavy object loading and installation system described in claim 3.

6. A jack-up device used in the heavy object loading and installation system described in claim 4.

7. A method for transporting and installing heavy objects to temporarily install and fix a predetermined heavy object, which has been transported to a predetermined transport position, at a predetermined fixed position on a pair of steel frame frames extending parallel to each other and installed indoors, The pair of steel frame structures extend from the loading position to the fixed position, and a lifting device capable of lifting the heavy object is provided at the loading position. A guide device installation step involves installing a guide device capable of supporting the aforementioned heavy object and temporarily fixing the supported heavy object on each of the pair of steel frame frames, in pairs, front and rear, so as to be movable along each of the steel frame frames. The lifting and installation process involves using the lifting device to lift the heavy object at the aforementioned loading position, placing it on the guide device, and then fixing it in place. A transport process in which the heavy object and the guide device are transported to the fixed position on the pair of steel frame supports, In the aforementioned fixed position, the jacking device is temporarily installed by hanging the base portion on the pair of steel frame supports and installing the jacking device on the base portion, thereby temporarily installing the jacking device comprising the base portion and the jacking device. A jacking-up step in which the guide device is removed from the heavy object and the heavy object is lifted using the jacking-up device, A guide device removal step, which involves removing the guide device from the pair of steel frame supports, A method for transporting and installing heavy objects, characterized by comprising a heavy object installation step of placing and fixing the heavy objects onto the pair of steel frame supports.

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