JP4058098B1 - Heavy lifting structure - Google Patents

Abstract

An object of the present invention is to provide a lifting device for heavy objects and a lifting method for the heavy objects, such as escalators, which can be installed neatly by a compact installation method.
A plurality of steel-made beams 2, columns 3A, and rail pieces are brought into the field, a plurality of gate-type steel frames 5 are assembled with the beams 2 and columns 3, and the plurality of gate-type steel frames 5 are arranged in a row at a predetermined interval. The steel tunnel 6 is temporarily installed in line. On the ceiling of the steel tunnel 6 are a trolley formed by connecting the plurality of rail pieces in a direction parallel to the steel tunnel 6, and chain blocks 8A and 8B for lifting heavy objects that can move along the trolley. The escalator part EP as a heavy object is hung by the chain block and conveyed along the trolley.
[Selection] Figure 2

Description

  The present invention relates to a lifting structure and a lifting method for lifting and transporting escalators and other heavy objects. In particular, the heavy objects can be installed neatly by a compact installation method.

  Conventionally, when installing an escalator in a building, it is not possible to suspend the escalator using a lifting machine such as a crane. Therefore, a method of suspending the escalator with a wire from the ceiling and fixing it in place has been adopted. (For example, see FIG. 5 and FIG. 6 of Patent Document 1).

  However, according to the conventional escalator installation method as described above, since the escalator is suspended from the ceiling with a wire, it is unavoidable. In particular, in a situation where the escalator cannot be hung from the ceiling due to a problem with the strength of the ceiling, it becomes impossible or extremely difficult to install the escalator. In this case, measures such as reinforcing the ceiling can be considered, but with such measures, the escalator cannot be installed neatly because the reinforcement work takes time.

  These problems are not just escalators. Even with heavy objects other than escalators, such as building materials, similar problems occur in the conventional ceiling suspension system described above.

Japanese Patent Laid-Open No. 9-2767

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a heavy-lifting device and a lifting device for heavy-weight items such as escalators that can be installed with a compact installation method. It is to provide a heavy way.

A first aspect of the present invention is a lifting structure for lifting and transporting heavy objects, and the lifting structure has a plurality of steel beams, columns, and rail pieces on floors separated from the upper and lower floors where visibility can be seen in a building. The lattice pieces are carried in, and a plurality of gate-type steel frames are assembled with the beams and pillars for each floor, and a plurality of the gate-type steel frames are arranged in a row at a predetermined interval, and a steel tunnel is temporarily installed. As the abutment, a lattice beam formed by connecting the plurality of lattice pieces is installed, a trolley formed by connecting the plurality of rail pieces along the beam axis on the lower surface of the lattice beam, and along the trolley a chain block for lifting movable heavy provided, fitted with a heavy object the chain block through steel tunnel of the one floor, said trolley and while hanging the heavy in the chain block Wherein the conveying along the beam axis of the serial lattice beams.

A second aspect of the present invention is a lifting structure for lifting and transporting a heavy object, and the lifting structure includes a plurality of steel beams, columns, rail pieces, and lattice pieces for each of the platforms of the relative railway platform. Carrying in and assembling a plurality of portal steel frames with the beams and columns at each home, arranging the plurality of portal steel frames in a row at a predetermined interval, temporarily constructing steel tunnels, and using the steel tunnels of each home as an abutment, A trolley formed by connecting a plurality of lattice pieces to a lower surface of the lattice beam and connecting the plurality of rail pieces along the beam axis, and a weight movable along the trolley A chain block for lifting an object, a heavy object is attached to the chain block through the steel tunnel on the one floor, and the trolley and the latch are suspended while the heavy object is suspended by the chain block. Wherein the conveying along the beam axis of the beam.

In the first and second aspects of the present invention, as described above, a steel tunnel made of a plurality of portal steel frames is temporarily installed on the site, a lattice beam is installed using the temporary steel tunnel as an abutment, and the lower surface of the lattice beam A trolley and a chain block for lifting heavy objects that can move along the trolley are provided, and a system that conveys while suspending heavy objects such as escalators with the chain block is adopted. In this way, heavy objects are lifted and transported using steel tunnels and lattice beams . Therefore, this type of escalator is not compact, unlike the conventional method of hanging escalators from the ceiling of a building. Can be installed by installation method. Moreover, it becomes possible to install an escalator even in a bad situation where the escalator cannot be suspended due to the strength of the ceiling or the like, and the escalator installation can be promoted.

In addition, according to the first and second aspects of the present invention, the temporary steel tunnel is composed of parts that can be transported manually such as beams and columns , so that the assembly and disassembly work can be easily performed in a short time. In addition, the parts can be carried in and removed from the site quickly, and the escalator can be installed neatly in a short time at midnight.

In particular, according to the first aspect of the present invention, if steel tunnels can be temporarily installed on at least two floors, heavy objects can be suspended from one floor to another even when both floors face each other vertically with a stairwell between them. Can be transported. Therefore, especially when installing escalators that are exposed between the floors so that they can be seen from the outside, the escalator parts can be transported to a predetermined position while being suspended, and the escalator parts can be connected in the air. Suitable for installation of type escalator.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is an embodiment of the present invention, and is a plan view of a site when an escalator is installed in a pit beside a staircase in a building, FIG. 2 is a view as viewed from an arrow A in FIG. 1, and FIG. FIG. 4 is a component diagram of a steel tunnel composed of a plurality of portal steel frames, FIG. 5 is a detailed view of a column, and FIG. 6 is an explanatory diagram when the column is set up on the inclined pit bottom.

  The lifting structure 1A of the present embodiment carries a plurality of steel-made beams 2, pillars 3A, 3B, and rail pieces 4 (see FIGS. 4A, 4B, and 4D) to the site. A plurality of portal steel frames 5 (see FIG. 3) are assembled with the pillars 3A and 3B, and the plurality of portal steel frames 5 are arranged in a row at predetermined intervals on the pits P next to the stairs S as shown in FIGS. Is temporary.

  On the ceiling of the steel tunnel 6, a trolley 7 formed by connecting the plurality of rail pieces 4 in a direction parallel to the steel tunnel 6, a chain block 8 A for lifting heavy objects movable along the trolley 7, 8B.

  As shown in FIG. 3, the gate-type steel frame 5 has a structure in which one beam 2 is supported by two columns 3A and 3B. One column 3A is erected vertically on the step surface of the staircase S and is fixed by an anchor. To do. The other pillar 3B is erected perpendicularly to the bottom surface of the pit P and is similarly fixed by an anchor.

  Although the step surface of the staircase S is horizontal, the bottom surface P1 of the pit P is an inclined surface as shown in FIG. 6B. Therefore, when the other column 3B is placed on the pit P, the bottom surface of the column 3B is It adjusts so that it may stand vertically with the attached angle adjustment metal fitting 9. FIG.

  The beam 2 is attached so as to bridge between the upper ends of the two pillars 3A and 3B, and is arranged along the width direction of the pit P (the same as the width direction of the installed escalator).

  Each gate-type steel frame 5 is adjusted so that the respective beams 2 are all at the same height as shown in FIG. This height adjustment is performed by adding and connecting the same column 3A in series to the column 3A, or by adding and connecting the adjusting short column 10 to the lower end of the column 3A in series.

  As shown in FIGS. 5 (a) to 5 (d) and FIG. 8, the same pillar 3A is connected to each other with the plate bodies 11 welded to the end portions of the respective pillars 3A facing each other. A bolt may be inserted into the insertion holes H1 and H2, and each plate body 11 may be fastened and fixed with a nut. The connection between the column 3A and the adjusting short column 10 is the same.

  The portal steel frames 5 are connected to each other by connecting beams 13A and 13B as shown in FIGS. The connecting beams 13A and 13B are orthogonal to the columns 3A and 3B and the beam 2, and are attached to the upper end portion of the column 3A (see FIG. 7) and near the joint between the columns 3A and 3A.

  In this embodiment, the beam 2 and the connecting beams 13A and 13B have the same size and shape so that the number of types of parts can be reduced as much as possible and the management of the parts is easy. ing.

  FIG. 7 is an assembled perspective view of the gate-type steel frame (only one pillar 3A side), and FIG. 8 is an exploded perspective view (only the one pillar 3A side). Explain how.

  Assembling the portal steel frame 5 is first arranged so that the two connecting beams 13A and 13B are connected in series at the upper end of the column 3A. Then, by passing bolts through the bolt insertion holes H1 and H2 on the pillar 3A side and the corresponding bolt insertion holes H1 and H2 on the side of the connecting beams 13A and 13B, and tightening the nuts, the two connecting beams 13A , 13B is fixed to the pillar 3A. The other pillar 3B is configured similarly.

  Next, the beam 2 is placed on the connecting portion 13C of the connecting beams 13A and 13B, and the bolt insertion holes H3 and H4 on the side of the connecting beams 13A and 13B and the corresponding bolt insertion holes H3 and H4 of the beam 2 are placed. The beam 2 is fixed to the upper end of the column 3A by passing the bolt and tightening the nut. The beam 2 is similarly fixed to the upper end of the other column 3B.

  Further, the reinforcing material 12 is attached to a portion where the beam 2 and the column 3A cross each other, a portion where the one connecting beam 13A and the column 3A cross each other, and a portion where the other connecting beam 13B and the column 3A cross each other, and the beam 2 and the connecting beam 13B. Reinforce. By reinforcing the other pillar 3B side in the same manner, one gate-type steel frame 5 is completed.

  The portal steel frames 5 are assembled in the same manner one after another with the connecting beams 13A and 13B projecting forward and backward from the completed portal steel frame 5 as described above. Thereby, the plurality of portal steel frames 5 are arranged in a line at intervals corresponding to the lengths of the connecting beams 13A and 13B, and the temporary steel tunnel 6 is completed. The steel tunnel 6 is hollow and has a width and height sufficient to carry in an escalator broken down into parts.

  As shown in FIG. 1, the trolley 7 provided on the ceiling of the steel tunnel 6 has a plurality of rail pieces 4 facing each other so that each rail piece 4 is individually attached to the beam 2 of the portal steel frame 5 with bolts. The structure is attached with a nut (see FIG. 3). Further, as shown in FIGS. 2 and 3, heavy-lifting chain blocks 8 </ b> A and 8 </ b> B provided on the ceiling of the steel tunnel 6 may be a commercially available electric or manual type that can move using the trolley 7 as a track. it can.

  When an escalator is installed in the pit P next to the stairs in the building using the lifting structure 1A of the present embodiment configured as described above, the operation is performed according to the following procedure.

<Procedure 1>
A plurality of beams 2, columns 3, rail pieces 4 and the like made of steel shown in FIG. 4 are carried into the escalator installation site, and a plurality of gate-type steel frames 5 are assembled according to the above-described method of assembling the gate-type steel frames 5, FIG. The steel tunnel 6 is temporarily installed in the pit P as shown in FIG. At this time, since the beam 2, the pillar 3 and the rail piece 4 are all configured to have a weight and a size that can be transported by human power, time and labor are not required to carry them.

<Procedure 2>
The tip of the escalator part EP is entered from the entrance (not shown) of the steel tunnel 6 located on the climbing side of the stairs S, and the chain C pulled out from the first chain block 8A is moved to the tip EP1 of the escalator part EP. The tip part EP1 of the escalator part EP is lifted by the chain block 8A (see FIG. 2).

<Procedure 3>
Thereafter, the escalator part EP is further pushed into the steel tunnel 6, the rear end portion EP2 of the escalator part EP is entered into the entrance of the steel tunnel 6, and the chain C pulled out from the second chain block 8B is moved to the rear end of the escalator part EP. The rear end portion EP2 of the escalator part EP is lifted by the chain block 8B and the chain block 8B (see FIG. 2).

<Procedure 4>
When the lifting of the front and rear end portions EP1 and EP2 of the escalator part EP is completed as described above, the escalator part EP is pulled from the front or pushed from the rear, or the pulling work and the pushing work are performed simultaneously. Thereby, the escalator part EP is conveyed to a predetermined installation position as shown in FIG.

<Procedure 5>
The next escalator part (not shown) connected to the escalator part EP previously fixed to the pit is also fixed to the pit P in the same manner according to the procedures 1 to 3. By repeating this up to the last escalator part, the escalator is installed in the pit P.

<Procedure 6>
After the escalator installation is completed, the steel tunnel 6 is dismantled. The dismantling operation may be performed in the reverse manner to the above-described method of assembling the portal steel frame. When the steel tunnel 6 is disassembled, it becomes a beam 2, a pillar 3, and a rail piece 4 that can be transported by human power, so that the removal work after disassembly does not require time and labor.

  In the lifting structure 1A of the present embodiment described above, when installing an escalator in the pit P, a steel tunnel 6 composed of a plurality of portal steel frames 5 is temporarily installed at the site, and the temporary steel tunnel 6 is used. The escalator parts EP are lifted and transported to a predetermined position in the pit. For this reason, the escalator parts EP are not as large as the method of lifting the escalator parts EP from the ceiling of the building, and the escalator is installed even under bad circumstances where the escalator parts EP cannot be suspended due to the strength of the ceiling, etc. It becomes possible to do.

  Moreover, according to the lifting structure 1A of the present embodiment, the temporary steel tunnel 6 is composed of parts that can be transported manually, such as the beam 2, the pillar 3, and the rail piece 4, and therefore, the assembly and disassembly work is easy. The escalator can be installed neatly in a short time in the middle of the night.

  FIG. 9 is another embodiment of the present invention, and is a plan view of a site where heavy objects such as escalators are transported from one platform to the other platform in a relative railway platform, and FIG. It is.

  The lifting structure 1B of the present embodiment carries a plurality of steel-made beams 2, columns 3, rail pieces 4, and lattice pieces 15 on the upper surfaces of both the homes D1 and D2 as described above, and for each of the homes D1 and D2, A plurality of portal steel frames 5 (see FIG. 3) are assembled with the beams 2 and the columns 3, and the steel tunnel 6 is temporarily installed by arranging the plurality of portal steel frames 5 in a row at a predetermined interval.

  Then, a lattice beam 16 formed by connecting a plurality of lattice pieces 15 is installed with the steel tunnel 6 of each of the homes D1 and D2 as an abutment, and the lower surface of the lattice beam 16 is in the direction parallel to the beam axis. A trolley 7 formed by connecting a plurality of rail pieces 4 and chain blocks 8A and 8B for lifting heavy objects that can move along the trolley 7 are provided.

  The specific structure of the portal steel frame 5, the steel tunnel 6, the trolley 7, and the chain blocks 8A and 8B is the same as that of the above-described embodiment. Description is omitted.

  In the lifting structure 1B of the present embodiment configured as described above, for example, there is a building adjacent to the other home D2 side, and therefore, the home D2 is used by using a crane from the outside of the other home D2. It is used when heavy objects such as escalator parts EP cannot be carried in, but is not limited to such a use form.

  When the escalator part EP is transported from the upper surface of one home D1 to the upper surface of the other home D2 using the lifting structure 1B of the present embodiment, the escalator part EP is carried into the steel tunnel 6 temporarily installed in the one home D1. The front and rear end portions EP1, EP2 of the escalator part EP are attached to the chain blocks 8A, 8B through the steel tunnel 6.

  And, pulling the escalator part EP from the other home D2 side by a pulling means (not shown), or pushing the escalator part EP from the one home D1 side toward the other home D2 direction, or the pulling work and pushing work Do it at the same time. Thereby, the escalator parts EP are conveyed along the trolley 7 to the other home D2 while being suspended by the chain blocks 8A and 8B.

  In the lifting structure 1B of the present embodiment described above, the steel tunnel 6 is temporarily installed for each of the two upper surfaces of the homes D1 and D2, and the lattice beam 16 is formed by using the steel tunnel 6 on the upper surfaces of the homes D1 and D2 as an abutment. A system is used in which the escalator parts EP as heavy objects are lifted using the lattice beam 16 and conveyed to a predetermined position. This is a method of lifting and transporting heavy objects using the lattice beam 16, so that it is not a large-scale one, unlike the conventional method of hanging heavy objects from the ceiling or the method of hanging heavy objects with a crane. The escalator can be transported even under adverse conditions where the escalator parts cannot be hung from the ceiling.

  FIG. 11 is another embodiment of the present invention, and is an explanatory view of the site when escalators are installed between the upper and lower floors where the line of sight is visible in the building.

  In the lifting structure 1C of the present embodiment, a plurality of steel beams 2, pillars 3, rail pieces 4, and lattice pieces 15 are carried into the two floors F1 and F2 above and below, and the floors F1 and F2 are loaded. Every time, a plurality of portal steel frames 5 (see FIG. 3) are assembled with the beams 2 and the pillars 3, and the plurality of portal steel frames 5 are arranged in a line at a predetermined interval to temporarily install the steel tunnel 6. Since the space between the floors F1 and F2 is an atrium, the steel tunnel 6 is not temporarily installed between them.

  Then, a lattice beam 16 formed by connecting a plurality of lattice pieces 15 with the steel tunnel 6 of each floor F1, F2 as an abutment is installed, and the lower surface of the lattice beam 16 is in the direction parallel to the beam axis. A trolley 7 formed by connecting a plurality of rail pieces 4 and chain blocks 8A and 8B for lifting heavy objects that can move along the trolley 7 are provided.

  The specific structure of the portal steel frame 5, the steel tunnel 6, the trolley 7, and the chain blocks 8A and 8B is the same as that of the above-described embodiment. Description is omitted.

  When the escalator part EP is transported from the lower floor F1 to the upper floor F2 using the lifting structure 1C of the present embodiment, the escalator part EP is carried into the steel tunnel 6 temporarily installed on the lower floor F1. The front and rear end portions EP1, EP2 of the escalator part EP are attached to the chain blocks 8A, 8B through the steel tunnel 6.

  Then, the escalator part EP is pulled from the upper floor F2 side by traction means (not shown). Thus, the escalator part EP is conveyed in the direction of the upper floor F4 along the trolley 7 while being suspended by the chain blocks 8A and 8B, and is connected to other escalator parts at a predetermined position.

  In the lifting structure 1C of the present embodiment described above, the steel tunnel 6 is temporarily installed on each of the two upper surfaces of the floors F1 and F2, which are separated from each other, and the lattice beam 16 is formed by using the steel tunnel 6 on the upper surfaces of the floors F1 and F2. A system is used in which the escalator parts EP as heavy objects are lifted using the lattice beam 16 and conveyed to a predetermined position. This is also a method of lifting and transporting heavy objects using the lattice beam 16, so that it does not become large-scale, like the conventional method of hanging heavy objects from the ceiling and the method of hanging heavy objects with a crane, The escalator can be transported even in a bad situation where the escalator parts cannot be hung from the crane or the ceiling.

  In particular, according to the lifting structure 1C, if the steel tunnel 6 can be temporarily installed on at least two floors F1 and F2, even if both the floors F1 and F2 are diagonally opposed to each other with a blow-through between them, A heavy object can be transported from the floor F1 to another floor F2. Therefore, in particular, when an escalator of an exposed type is installed between the floors F1 and F2 so that it can be seen from the outside, the escalator part EP is transported to a predetermined position while being suspended, and the escalator part EP is suspended in the air. It is suitable for installation of an exposure type escalator.

It is one Embodiment of this invention, Comprising: The top view of the spot when installing an escalator in the pit beside a staircase in a building. The A arrow directional view of FIG. B arrow view of FIG. FIG. 4 is a component diagram of a steel tunnel composed of a plurality of portal steel frames, (a) is a plan view and side view of a beam and a connecting beam, (b) is a plan view of a column, and (c) is a short view The top view of a pillar, (d) is a top view of a rail piece, (e) is a top view of a reinforcement member. FIG. 5 is a detailed view of the pillar, (a) is a plan view of the pillar, (b) is a bottom view thereof, (c) is a top view thereof, and (d) is a side view thereof. It is explanatory drawing when a pillar is stood on the inclined pit bottom face, (a) is a front view of the pillar stood on the bottom face of the pit, and (b) is a side view thereof. The assembled perspective view of the gate-type steel frame (only the first pillar 3A side). The exploded perspective view of a portal steel frame (only one pillar 3A side). It is other embodiment of this invention, Comprising: The top view of the site | part which conveys heavy goods, such as an escalator, from one platform to the other platform in a relative type railway platform. C arrow line view of FIG. It is other embodiment of this invention, Comprising: The explanatory drawing of the spot when installing an escalator between the floors of the upper and lower floors with a good view in a building.

Explanation of symbols

1A, 1B, 1C Lifting structure 2 Beam 3A, 3B Column 4 Rail piece 5 Gate-type steel frame 6 Steel tunnel 7 Trolley 8A, 8B Chain block 9 Angle adjusting bracket 10 Short column 11 Plate 12 Reinforcing material 13A, 13B Connecting beam C Chain EP Escalator parts EP1 Escalator parts tip EP2 Escalator parts rear end P Pit (escalator installation pit)
S Stairs D1, D2 Home F1, F2 Floors H1, H2, H3, H4 Bolt insertion holes

Claims (2)

A lifting structure for lifting and transporting heavy objects,
The lifting structure is
A plurality of steel beams, pillars, rail pieces, and lattice pieces are carried into floors that are easily separated from the upper and lower floors where visibility can be seen within the building, and multiple gate-type steel frames are assembled with the beams and pillars for each floor. A steel tunnel is temporarily installed by arranging a plurality of portal steel frames in a line at a predetermined interval.
Using the steel tunnel of each floor as an abutment, installing a lattice beam connecting the plurality of lattice pieces,
A trolley formed by connecting the plurality of rail pieces along the beam axis on the lower surface of the lattice beam, and a chain block for lifting heavy objects movable along the trolley,
A heavy object is attached to the chain block through the steel tunnel on the one floor, and the heavy object is transported along the beam axis of the trolley and the lattice beam while the heavy object is suspended by the chain block. Heavy structure. A lifting structure for lifting and transporting heavy objects,
The lifting structure is
For each platform of the relative railway platform, carry multiple steel beams, pillars, rail pieces, and lattice pieces, and assemble multiple gate-type steel frames with the beams and pillars at each platform. A steel tunnel is temporarily set up by arranging steel frames in a line at predetermined intervals.
Using the steel tunnel of each home as an abutment, installing a lattice beam formed by connecting the plurality of lattice pieces,
A trolley formed by connecting the plurality of rail pieces along the beam axis on the lower surface of the lattice beam, and a chain block for lifting heavy objects movable along the trolley,
A heavy object is attached to the chain block through the steel tunnel on the one floor, and the heavy object is transported along the beam axis of the trolley and the lattice beam while the heavy object is suspended by the chain block. Heavy structure.

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