JP7303673B2 - Materials and equipment transportation method - Google Patents

Description

The present invention relates to a method for transporting materials and equipment such as formwork and shoring, and more specifically, to a method for transporting materials and equipment from lower floors to upper floors using a lifting device having a self-lifting function. is.

Buildings with multiple floors, such as housing complexes and office buildings, are generally constructed in order from the lower floors. For example, when constructing a multi-story building of RC (Reinforced Concrete) or SRC (Steel Reinforced Concrete) construction, the concrete structure of the 1st floor is constructed first, then the 2nd floor, the 3rd floor, and so on. We will continue to do so.

Various materials including temporary materials (hereinafter collectively referred to as "materials and equipment") are used to construct RC and SRC buildings. Specifically, formwork used for pouring concrete, shoring for assembling the formwork, single pipes (general structural carbon steel pipes) and joint materials (clamps, etc.) and scaffolding boards used for scaffolding, etc. In addition, a wide variety of materials and equipment are used, such as wooden frames and metal fittings. And, as mentioned above, when constructing in order from the lower floors, these materials and equipment will be lifted up to the upper floors every time the construction of the lower floors is completed.

Conventionally, materials and equipment were transported from the lower floors to the upper floors by workers passing them by hand through an opening in the floor of the upper floors, or by moving horizontally to the main staircase or external scaffolding stairs and then using a separate carrier. A method of transporting by means of a trolley, a method of transporting after moving horizontally to an external elevator, etc. were used. However, all of these methods have various problems, such as a heavy burden on workers, a considerable amount of work time required for transportation, and the need to climb over partitions when moving horizontally over a long distance.

In particular, in the most common case of "hand-delivery by workers through openings", problems have been pointed out in terms of safety as well as the burden on workers. It was a problem that could not be overlooked. For example, when constructing a standard building with a floor area of about 300 m ² , 2,350 temporary materials and 3,600 kg of miscellaneous materials are transported to the upper floors per floor. If temporary materials, etc. are transported one by one at a time, miscellaneous materials, etc., are transported in an amount of 20 kg each time, and if each transport operation takes 15 seconds, it will take 10 seconds to transport materials and equipment to the upper floors. .5 hours will be required. The transportation time calculated here is for one floor (for example, the second and third floors), so considering the entire construction period, it takes (N-1) x 10.5 hours to transport materials and equipment (N is the building (total number of ranks of ).

Therefore, various improved techniques for transporting materials and equipment have been proposed so far. For example, Patent Literature 1 proposes a method of transporting materials using a suspension-type lifting device equipped with a pantograph mechanism.

JP-A-05-113034

Patent document 1 is a method of transporting materials by installing a suspension-type lifting device on a shaft penetrating the slab (floor surface) of each floor. Therefore, it cannot be used in buildings where a shaft passing through all floors is not provided. Moreover, since the lifting device used in Patent Document 1 is provided with a pantograph mechanism, it can be pointed out that the manufacturing cost is considerably high. In addition, the weight of a lifting device equipped with a pantograph mechanism is relatively large, which requires a considerable amount of labor to handle. can also be pointed out.

The object of the present invention is to solve the problems of the prior art, that is, to provide a method of transporting materials and equipment that can shorten the transport time of materials and equipment and reduce the labor of workers compared to the conventional method. It is to be.

The present invention transports materials and equipment by using a "lifting device" having a base portion equipped with outriggers, a column fixed to the base portion, and a loading platform that can be raised and lowered along the support, and the loading platform is placed on the upper floors. This invention was made with a focus on lifting the base and the pillars to the upper floors in a fixed state, and was based on an unprecedented idea.

The method of transporting materials and equipment of the present invention is a method of transporting materials and equipment from a lower floor to an upper floor through an opening provided in the floor surface of the upper floor using a lifting device. It is a method comprising a process, a loading process, a platform supporting process, and a base raising process. The lifting device has a "base" having outriggers, one or more "supports" fixed to the base, and a "cargo bed" capable of moving up and down along the support. In the lifting device arrangement step, the lifting device is arranged on the floor surface of the lower floor below the opening, and in the base portion supporting step, the base portion is supported on the floor surface of the lower floor by the outriggers. In the unloading process, the props are extended to the upper floor through the opening, and the materials and equipment are stored in the loading platform placed on the lower floor. . Then, in the loading platform support step, the loading platform raised to the upper floor is supported on the floor surface of the upper floor, and in the foundation raising step, the outriggers are released to raise the foundation to the upper floor.

The material/equipment transportation method of the present invention can also be a method further comprising a lifting device horizontal movement step. In this case, an elevating device is used in which the base portion is provided with moving wheels, and the opening portion is provided with an opening/closing lid. In the lifting device horizontal movement process, the opening/closing lid is closed, and the lifting device is moved horizontally on the closed opening/closing lid.

The method of transporting materials and equipment according to the present invention can also be a method comprising a post fixing step and a base raising step as described below. In other words, in the pillar fixing process, the pillars are extended to the upper floor by adding extension pillars while raising the loading platform on which workers are placed. raise.

The material/equipment transportation method of the present invention can also be a method using an elevating device in which the struts are extendable. In this case, in the post fixing step, the post is extended to the upper floor, and in the base part raising step, the base part is raised to the upper floor while contracting the post.

The material/equipment transportation method of the present invention can also be a method of unloading materials/equipment from an upper floor to a lower floor. In this case, in the lifting device arrangement step, the lifting device is arranged above the opening and on the floor surface of the upper floor, and in the loading platform supporting step, the loading platform is supported on the floor surface of the upper floor. In the base lowering step, the base is lowered to the lower floor while extending the pillars downward. In the base supporting step, the base is supported on the floor surface of the lower floor by the outriggers. In the unloading process, after releasing the support of the loading platform and storing the materials and equipment in the loading platform, the loading platform is lowered to the lower floor through the opening and the materials and equipment are unloaded from the loading platform on the lower floor.

The method for transporting materials and equipment according to the present invention has the following effects.
(1) Since materials and equipment are transported to upper floors using a lifting device, the transportation time of materials and equipment can be shortened compared to the conventional method.
(2) Similarly, since materials and equipment are transported to upper floors using a lifting device, it is possible to reduce the labor of workers and avoid the danger associated with transport work.
(3) Since the elevating device is self-raising, it is not necessary for the operator to carry the elevating device, which reduces the labor of the operator and avoids the danger associated with the work of transporting the elevating device.
(4) Since a relatively large-scale lifting mechanism such as a pantograph mechanism is not required, the lifting device can be manufactured at low cost, and the lifting device can be lightened and easy to handle.
(5) It can be implemented even in buildings where no shaft is provided to pass through the slabs of all floors.

(a) is a side view showing the lifting device used in the material/equipment transporting method of the present invention, (b) is a rear view showing the lifting device used in the material/equipment transporting method of the present invention, and (c) is the material/equipment transporting of the present invention. The top view which shows the raising/lowering apparatus used by a method. The flow chart which shows the main processes of the unloading type materials/equipment transportation method. (a) is a step diagram showing the process of arranging the lifting device, (b) is a step diagram showing the process of supporting the base on the floor of the lower floor, and (c) is a step diagram of fixing the pillars to the floor of the upper floor. (d) is a step diagram showing the process of bringing the materials and equipment closer to the loading platform. (e) is a step diagram showing the process of storing materials and equipment in the loading platform, (f) is a step diagram showing the process of raising the loading platform containing the materials and equipment to the upper floor, (g) is a step diagram showing the process from the loading platform to the upper floor (h) is a step diagram showing the process of unloading the platform, and (h) is a step diagram showing the process of supporting the platform with a platform such as a standing horse installed on the floor surface of the upper floor. (i) is a step diagram showing the process of raising the base to the upper floor, (j) is a step diagram showing the process of removing the standing horse and placing the lifting device on the closed opening and closing lid, (k) is a step diagram showing the opening and closing Step diagram showing the process of horizontally moving the lifting device on the lid, (l) is the process of constructing the floor slab of the upper floor. (a) is a top plan view of the opening/closing lid, (b) is a cross-sectional view of the opening/closing lid, and (c) is a partial cross-sectional view showing the details of the frame member. FIG. 11 is a side view showing a situation in which a worker sequentially adds extension struts to extend the struts while moving upward using a loading platform; (a) is a perspective view showing a standing horse, and (b) is a sectional view showing a standing horse installed in an opening. FIG. 11 is a side view showing a situation in which a worker standing on the floor surface of an upper floor gradually removes the extension pillars ascending to the upper floor, thereby shortening the pillars. The flow chart which shows the main processes of the unloading type materials/equipment transportation method.

An example of an embodiment of the material/equipment transportation method of the present invention will be described with reference to the drawings. In addition, the method of transporting materials and equipment of the present invention includes a method of transporting materials and equipment from a lower floor to an upper floor (hereinafter referred to as a "unloading type materials and equipment transportation method") and a method of transporting materials and equipment from an upper floor to a lower floor. It can be broadly divided into methods (hereinafter referred to as "unloading type materials and equipment transportation method"). In addition, both the unloading type materials and equipment transportation method and the unloading type materials and equipment transportation method of the present invention are methods using the "elevating device". Therefore, the "lifting device" will be explained first, and then the "unloading type materials and equipment transportation method" and the "unloading type materials and equipment transportation method" will be explained in detail.

1. Elevating Device Fig. 1 is a view showing an elevating device 100 used in the material/equipment transportation method of the present invention, in which (a) is a side view, (b) is a rear view, and (c) is a plan view seen from above. . As shown in this figure, the lifting device 100 includes a base portion 110, a column 120, and a loading platform 130. As shown in FIG.

Of these, the base portion 110 includes outriggers 111, and may include wheels for horizontally moving the lifting device 100 (hereinafter referred to as “moving wheels 112”). The outrigger 111 has a plurality of sets (four sets in this figure) of legs, and these legs have horizontally extendable arms and jacks provided at the ends of the arms. . By extending the arm of the outrigger 111 and jacking it up with the jack portion, the lifting device 100 can be supported on the floor surface. The moving wheel 112 is a tire wheel that rotates around a horizontal axis or a ball (sphere) that rotates in any direction. It can also be rotated by pushing (pulling).

As shown in FIG. 1, the column 120 has a columnar shape extending substantially vertically (including the vertical direction), and is fixed to the base 110 at its lower end. In order to fix the strut 120 to the base portion 110, it can be fixed directly to the outrigger 111, or it can be fixed to a bottom plate attached to the outrigger 111 or the like. Also, one (one row) of struts 120 can be fixed to the base portion 110 , or two or more (two rows) of struts 120 can be fixed to the base portion 110 .

Moreover, the support|pillar 120 can change the extension. For example, the strut 120 is divided into a plurality of struts (hereinafter referred to as "extension struts 121"). The strut 120 can be extended by , and the strut 120 can be shortened by removing the required number of extension struts 121 . Alternatively, the strut 120 may be constructed of a plurality of divided bodies, each divided body may be hollow, and the lower divided body may accommodate the upper divided body. In this case, the strut 120 is extended by pulling out each of the accommodated split bodies manually or mechanically using hydraulic pressure or electric power, and the strut 120 is contracted by accommodating each split body. can be done.

The loading platform 130, as shown in FIG. 1, includes a bottom plate and handrails, and is capable of loading equipment and materials and people. Further, the loading platform 130 has a structure capable of moving up and down (elevating) along the pillars. In order to raise and lower the loading platform 130, a mechanical system using hydraulic pressure or electric power may be used, a manual system using a chain block or the like, or a manual system using rotation of an electric drill may be used. can.

2. Unloading type material/equipment transportation method FIG. 2 is a flow chart showing the main steps of the unloading type material/equipment transportation method, and FIGS. 3 to 5 are step diagrams showing the main steps of the unloading type material/equipment transportation method. . 3 shows a process from placing the lifting device 100 to a process of bringing the materials and equipment closer to the loading platform 130, and FIG. Fig. 5 shows the steps up to the step of fixing, and Fig. 5 shows the steps from the step of raising the foundation 110 to the upper floor to the step of constructing the floor slab DC on the upper floor. The unloading type material/equipment transportation method will be described below with reference to FIGS. 2 to 5. FIG.

First, as shown in FIG. 3A, the lifting device 100 placed at an arbitrary position on the lower floor (N floor in the figure) is moved to the opening provided on the floor surface FU of the upper floor (N+1 floor in the figure). Move to below the AP (Step 101 in FIG. 2). At this time, it is preferable to horizontally move on the floor surface FL of the lower floor using the moving wheels 112 provided on the base portion 110 . The opening AP on the upper floor (N+1 floor) and the opening AP on the lower floor (N floor) do not communicate vertically, that is, on the floor surface FL immediately below the opening AP on the upper floor (N+1 floor). is not provided with an opening AP.

In order to prevent a worker from falling or a tool from falling, an opening/closing cover 210 as shown in FIG. 6 may be installed at the opening AP. FIG. 6(a) is a plan view of the opening/closing lid 210 viewed from above, FIG. 6(b) is a cross-sectional view of the opening/closing lid 210 (view taken along line XX in FIG. 6(a)), and FIG. ) is a partial cross-sectional view (detailed view of "Y section" shown in FIG. 6B) showing the details of the frame member. A typical open/close lid 210 is composed of two left and right pieces as shown in FIG. 6(a), one of which is rotatably fixed using a hinge or the like as shown in FIG. 6(b). . A frame member 220 is arranged around the opening/closing lid 210 . The frame member 220 is made of angle iron or the like, as shown in FIG. 6(c). When such an opening/closing lid 210 is installed at the opening AP, the opening AP is opened by opening the opening/closing lid 210 in advance as shown in FIG. 3(a). When opening and closing the opening/closing lid 210 with the column 120 of the lifting device 100 arranged, as shown in FIG. should be set to

When the lifting device 100 is arranged at a predetermined position (below the opening AP of the upper floor and on the floor surface FL of the lower floor), as shown in FIG. It is supported on the floor FL (Step 102 in FIG. 2). Specifically, as described above, the arms of the outriggers 111 are extended, and the base 110 (that is, the lifting device 100) is supported on the floor surface FL of the lower floor by jacking up the jack.

When the base part 110 is supported on the floor surface FL of the lower floor by the outriggers 111, as shown in FIG. (Step 103 in FIG. 2). Specifically, as shown in FIG. 7 , the worker moves upward using the loading platform 130 and extends the support 120 by successively adding the extension support 121 . Alternatively, if the strut 120 is telescopic, the strut 120 is extended by pulling out each of the accommodated divisions manually, hydraulically, or by electric power.

After passing through the opening AP and extending the support 120 to a predetermined height on the upper floor, the support 120 is fixed to the floor surface FU of the upper floor using a fixing jig DF. For example, the column 120 can be fixed by sewing the channel steel (fixing jig DF) installed on the floor surface FU of the upper floor and the column 120 with bolts. In addition, when installing the fixing jig DF such as channel steel on the floor surface FU of the upper floor, it is preferable to use the angle steel frame member 220 shown in FIG.

When the support 120 is fixed to the floor surface FU of the upper floor, the materials and equipment EQ are brought close to the loading platform 130 as shown in FIG. 3(d). At this time, it is preferable that the separate materials and equipment EQ such as shorings, single pipes, clamps, etc. are collectively accommodated in the transport basket CG, and the transport basket CG is mounted on the trolley TR and brought close to the loading platform 130 . Then, as shown in FIG. 4(e), the transport basket CG containing the materials and equipment EQ is transferred to the loading platform 130 together with the trolley TR (Step 104 in FIG. 2).

When the trolley TR and the transport basket CG are loaded on the loading platform 130, as shown in FIG. Move up to the upper floor (Step 105 in FIG. 2). Then, as shown in FIG. 4(g), the transport basket CG containing the materials and equipment EQ is transferred together with the trolley TR from the loading platform 130 to the upper floor surface FU (Step 106 in FIG. 2). After that, the loading platform 130 in a so-called empty state is lowered to the floor FL of the lower floor (Step 107 in FIG. 2). Then, again, the transport basket CG containing the materials and equipment EQ is transferred to the loading platform 130 (Step 104 in FIG. 2), the loading platform 130 is raised to the upper floor (Step 105 in FIG. 2), and the transport basket CG is moved to the upper floor. It is moved to the plane FU (Step 106 in FIG. 2), and the empty loading platform 130 is lowered (Step 107 in FIG. 2). This series of transportation steps (Step 104 to Step 107) is repeated until all the necessary materials and equipment EQ are transported.

When the last material/equipment EQ is transported to the upper floor, as shown in FIG. 4(h), the loading platform 130 after unloading the transport basket CG is supported by the floor surface FU of the upper floor (Step 108 in FIG. 2). . In order to support the loading platform 130, for example, a frame (hereinafter referred to as "standing horse HS") as shown in FIG. 8(a) may be used. The standing horse HS includes a plurality of support legs SL and a top plate TB, and can be installed so as to bridge (straddle) the opening AP as shown in FIG. 8(b). be. Further, it is preferable that the top plate TB is shaped so as to be at a position (height) that does not hinder the opening and closing of the opening/closing lid 210 when the standing horse HS is installed in the opening AP. In order to support the loading platform 130 using the standing horse HS, the loading platform 130 is first raised to a position slightly higher than the top plate TB, the standing horse HS is installed as shown in FIG. It is preferable to lower it and ground it on the top plate TB.

When the loading platform 130 is supported by the standing horse HS installed on the floor surface FU of the upper floor, the fixation of the support column 120 is released, and then the base portion 110 is raised to the upper floor as shown in FIG. 2 Step 109). At this time, it is preferable to raise the base portion 110 to a position (height) that does not hinder the opening and closing of the closing lid 210 . Of course, when raising the base portion 110, it is preferable to release the support by the outriggers 111 in advance (that is, jack down the jack portion and retract the arm). By the way, when the base portion 110 is raised, the pillars 120 are also raised accordingly. Therefore, the base portion 110 is raised while shortening (reducing) the support 120 . Specifically, as shown in FIG. 9, a worker standing on the floor surface FU of the upper floor sequentially removes the extension columns 121 ascending to the upper floor, thereby shortening the column 120 . Alternatively, if the strut 120 is telescopic, the strut 120 is shortened by accommodating each divided body manually or by hydraulic pressure or electric power.

When the foundation 110 is raised to a predetermined height on the upper floor, the closing lid 210 is closed to close the opening AP (Step 110 in FIG. 2), as shown in FIG. 5(j). Then, the base portion 110 is lowered and placed on the closed opening/closing lid 210 , and after removing the standing horse HS, the carrier 130 is lowered to the base portion 110 .

When the lifting device 100 is placed on the opening/closing lid 210, as shown in FIG. 5(k), the lifting device 100 is horizontally moved on the closed opening/closing lid 210 to an arbitrary position on the floor surface FU of the upper floor. Transport (Step 111 in FIG. 2).

When the lifting device 100 is retracted to an arbitrary position, as shown in FIG. 5(l), the shoring SH and the formwork are placed on the floor surface FU of the upper floor with the open/close lid 210 closed and the opening AP closed. and concrete is poured to construct a floor slab DC on the upper floor (N+2 floor) (Step 112 in FIG. 2).

3. Unloading Type Material/Equipment Transportation Method Subsequently, the unloading type material/equipment transportation method will be described with reference to FIG. 10 . The unloading method of transporting materials and equipment is a method in which each step of the unloading method of transporting materials and equipment explained so far is performed in a different order. Only the contents specific to the unloading type materials and equipment transportation method will be explained. In other words, the contents not described here are the same as those described in "2. Unloading type material/equipment transportation method".

FIG. 10 is a flow diagram showing main steps of the unloading type material/equipment transportation method. As shown in this figure, first, the lifting device 100 is arranged above the opening AP and on the floor surface FU of the upper floor (N+1 floor) (Step 201 in FIG. 10). When the opening AP is provided with the opening/closing lid 210, the opening AP is opened by opening the opening/closing lid 210 in advance.

When the lifting device 100 is placed at the predetermined position, the lifting device 100 is supported by using, for example, the standing horse HS (Step 202 in FIG. 10). Specifically, the loading platform 130 is raised to a position slightly higher than the top plate TB position, the standing horse HS is installed in the opening AP as shown in FIG. be grounded to

When the loading platform 130 is supported by the floor surface FU of the upper floor, the base 110 is lowered to the lower floor (Nth floor) while extending the support 120 downward (Step 203 in FIG. 10). At this time, a worker standing on the floor surface FU of the upper floor extends the support column 120 downward by successively adding the extension support columns 121 . Alternatively, if the strut 120 is telescopic, the strut 120 is extended downward by pulling out each of the accommodated divided bodies manually, hydraulically, or by electric power.

When the foundation portion 110 is lowered to the floor surface FL of the lower floor, the outriggers 111 support the foundation portion 110 on the floor surface FL of the lower floor (Step 204 in FIG. 10). Specifically, as described above, the arms of the outriggers 111 are extended, and the base 110 (that is, the lifting device 100) is supported on the floor surface FL of the lower floor by jacking up the jack.

After the base portion 110 is supported on the floor surface FL of the lower floor by the outriggers 111, the support 120 is fixed to the floor surface FU of the upper floor using the fixing jig DF (Step 205 in FIG. 10). For example, the column 120 can be fixed by sewing the channel steel (fixing jig DF) installed on the floor surface FU of the upper floor and the column 120 with bolts. In addition, when installing the fixing jig DF such as channel steel on the floor surface FU of the upper floor, it is preferable to use the angle steel frame member 220 shown in FIG.

When the pillar 120 is fixed to the floor surface FU of the upper floor, the transport basket CG containing the materials and equipment EQ is transferred to the loading platform 130 (Step 206 in FIG. 10), and the transport basket CG (that is, the materials and equipment EQ) is placed on the loading platform 130. The loading platform 130 is lowered to the lower floor through the opening AP (Step 207 in FIG. 10). Then, the transport basket CG containing the materials and equipment EQ is transferred from the loading platform 130 to the floor surface FL of the lower floor (Step 208 in FIG. 10), and then the empty loading platform 130 is transferred to the upper floor. It is raised to the floor surface FU (Step 209 in FIG. 10). Then, again, the transport basket CG containing the materials and equipment EQ is transferred to the loading platform 130 (Step 206 in FIG. 10), the loading platform 130 is lowered to the lower floor (Step 207 in FIG. 10), and the transport basket CG is moved to the floor of the lower floor. It is transferred to the plane FL (Step 208 in FIG. 10), and the empty loading platform 130 is raised (Step 209 in FIG. 10). This series of transportation steps (Step 206 to Step 209) is repeated until all the necessary materials and equipment EQ are transported. When the last equipment EQ is carried to the lower floor, with the empty loading platform 130 placed on the lower floor (that is, the foundation 110), the fixation of the support 120 by the fixing jig DF is released, and the support 120 is contracted. To go. Specifically, the operator sequentially removes the extension struts 121 to shorten the struts 120 . Alternatively, if the strut 120 is telescopic, the strut 120 is shortened by accommodating each divided body manually or by hydraulic pressure or electric power.

The materials and equipment transportation method of the present invention can be used in residential buildings such as condominiums and other housing complexes, detached houses, office buildings, department stores, and commercial buildings such as shopping malls, as well as various multi-story buildings such as school buildings and hospitals. can be used for things.

REFERENCE SIGNS LIST 100 lifting device 110 base (of lifting device) 111 outrigger (of base) 112 travel wheel (of base) 120 strut (of lifting device) 121 extension strut (of lifting device) 130 bed (of lifting device) 210 Opening/Closing Lid 220 Frame Material AP Opening CG Transportation Basket DC Floor Slab EQ Equipment FL Lower Floor Floor FU Upper Floor Floor HS Standing Horse SL (Standing Horse) Support Leg TB (Standing Horse) Top Plate RL Rail SH Support Engineering TR Cart

Claims (5)

A method of transporting materials and equipment from a lower floor to an upper floor through an opening provided in the floor surface of the upper floor using a lifting device,
The lifting device includes a base portion having outriggers, one or more pillars fixed to the base portion, and a loading platform that can be lifted and lowered along the pillars,
A lifting device arranging step of arranging the lifting device below the opening and on the floor surface of the lower floor;
a foundation support step of supporting the foundation on the floor surface of the lower floor by the outriggers;
The pillars are extended up to the upper floor through the opening, and materials and equipment are stored in the cargo bed placed on the lower floor. Unloading process of unloading equipment,
a pedestal installation step of installing a pedestal including a plurality of supporting legs and a top plate so as to bridge over the opening;
a loading platform supporting step of lowering the loading platform raised to the upper floor until it is placed on the top plate, and supporting the loading platform with the mounting platform ;
a base portion raising step of releasing the outriggers and raising the base portion to an upper floor while shortening the struts while the load platform is supported by the pedestal ;
A material and equipment transportation method characterized by: An opening/closing lid is provided at the opening,
When the mount is installed in the opening, the top plate is positioned so as not to be a barrier to opening and closing the opening and closing lid,
An opening opening step of opening the opening by opening the opening and closing lid before the unloading step;
an opening closing step of closing the opening by closing the open/close lid after the base raising step;
In the base part raising step, the base part is raised to an upper floor to a position that does not become a barrier for opening and closing the opening and closing lid,
After the opening closing step, the base is lowered and placed on the closed opening and closing lid.
2. The method for transporting materials and equipment according to claim 1, characterized in that: the base of the lifting device comprises a moving wheel ;
A lifting device horizontal movement step of horizontally moving the lifting device on the opening and closing lid after placing the base on the opening and closing lid,
3. The material/equipment transportation method according to claim 2, characterized in that: In the unloading step, after extending the pillars to the upper floor, the pillars are fixed to the floor surface of the upper floor,
In the base raising step, after releasing the fixation between the support and the floor surface of the upper floor, the base is lifted to the upper floor while shortening the support.
4. The material/equipment transportation method according to any one of claims 1 to 3, characterized in that: A method of transporting materials and equipment from an upper floor to a lower floor through an opening provided in the floor surface of the upper floor using a lifting device,
The lifting device includes a base portion having outriggers, one or more pillars fixed to the base portion, and a loading platform that can be lifted and lowered along the pillars,
A lifting device arrangement step of arranging the lifting device on the floor surface of the upper floor;
a pedestal installation step of installing a pedestal including a plurality of supporting legs and a top plate so as to bridge over the opening;
a loading platform supporting step of lowering the loading platform positioned higher than the top plate until it is placed on the top plate, and supporting the loading platform on the platform;
a base portion lowering step of lowering the base portion to a lower floor while extending the pillars downward while supporting the loading platform on the pedestal;
a foundation support step of supporting the foundation on the floor surface of the lower floor by the outriggers;
an unloading step of releasing the support of the loading platform, storing materials and equipment in the loading platform, lowering the loading platform to a lower floor through the opening, and unloading the materials and equipment from the loading platform on the lower floor; prepared,
A material and equipment transportation method characterized by:

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