JP2022149393A - lifting system - Google Patents

Abstract

To provide a lifting system capable of improving safety of a lifting work and a horizontal transfer work of an object to be lifted.SOLUTION: A lifting system 10 is a system for lifting an object H to be lifted, and comprises: a pair of guide rollers 20 arranged side by side at intervals substantially along a vertical direction at an object 4 to be installed; a suspension part lifting the object H to be lifted via the pair of guide rollers 20; a first horizontal transfer part 40 transferring the object H to be lifted horizontally so as to be apart from the object 4 to be installed via the pair of guide rollers 20 in a suspension state before lifting the object H to be lifted; and a second horizontal transfer part 50 transferring the object H to be lifted horizontally so as to come closer to the object 4 to be installed via the pair of guide rollers 20 in a suspension state after lifting the object H to be lifted.SELECTED DRAWING: Figure 1

Description

The present invention relates to lifting systems.

Conventionally, as one of the techniques for lifting objects such as construction materials, construction equipment, or construction jigs, the object is suspended and supported by a lifting drive source installed at the top of a frame attached to the frame of a building. There has been proposed a technique for lifting and lowering by pressing (see, for example, Patent Document 1).

JP 2014-070481 A

Here, in the technique described in Patent Document 1, the object to be lifted is lifted or lowered by the lifting drive source installed at the top of the frame. If the object to be lifted shakes while it is being held, the object to be lifted and the frame may come into contact with each other and may be damaged, so there is room for improvement from the viewpoint of work safety.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an elevating system capable of enhancing the safety of elevating work and horizontal movement work of an object to be lifted.

In order to solve the above-described problems and achieve the object, a lifting system according to claim 1 is a lifting system for lifting and lowering an object to be lifted, wherein the lifting system is arranged side by side at intervals substantially along the vertical direction in the installation object. A pair of guide rollers that can switch between maintaining and releasing restraint on the lifting object, a suspension means for lifting and lowering the lifting object via the pair of guide rollers, and the lifting object a first horizontal movement means for horizontally moving the lifting object away from the installation object via the pair of guide rollers in a suspended state in which the lifting object is suspended by the hanging means before lifting the a second horizontal movement means for horizontally moving the object to be lifted so as to approach the installation object via the pair of guide rollers in the suspended state after the object to be lifted is lifted.

The lifting system according to claim 2 is the lifting system according to claim 1, wherein the first horizontal movement means releases restraint on the lifting object by either one of the pair of guide rollers, and In a first restraint state, which is a state in which restraint of the lifting object by the other of the guide rollers is maintained, by pushing out the other of the pair of guide rollers to the side opposite to the installation object side, the pair of The lifting object is horizontally moved away from the installation object via the guide roller.

The lifting system according to claim 3 is the lifting system according to claim 1 or 2, wherein the second horizontal movement means maintains restraint of the lifting object by one of the pair of guide rollers, and In a second restraint state in which restraint of the lifting object by the other of the pair of guide rollers is released, by pulling either one of the pair of guide rollers toward the installation object side, the pair of guide rollers A roller is used to horizontally move the object to be raised and lowered so as to approach the object to be installed.

According to claim 4, the lifting system according to any one of claims 1 to 3 is provided with guide lifting means for lifting and lowering the pair of guide rollers via wires.

According to the lifting system according to claim 1, a pair of guide rollers arranged side by side with a gap substantially along the vertical direction in the installation target, and a pair of guide rollers that can switch between maintaining and releasing restraint on the lifting target and a suspension means for elevating the elevating object via the pair of guide rollers, and before elevating the elevating object, in the suspended state, the elevating object is horizontally separated from the installation object via the pair of guide rollers. A first horizontal movement means for moving, and a second horizontal movement means for horizontally moving the elevation object so as to approach the installation object via the pair of guide rollers in the suspended state after raising and lowering the elevation object. It is possible to avoid contact between the object to be lifted and the installation object or its peripheral members during the lifting work and the horizontal movement work of the lifting object, and it is possible to improve the safety of the lifting work and the horizontal movement work of the lifting object.

According to the lifting system according to claim 2, the first horizontal movement means pushes the other of the pair of guide rollers to the side opposite to the installation target side in the first restrained state, so that the pair of guide rollers Since the object to be lifted is horizontally moved away from the installation object via the , the work of horizontally moving the object to be lifted can be performed easily and safely, and the usability of the first horizontal movement means can be enhanced.

According to the lifting system of claim 3, the second horizontal movement means pulls one of the pair of guide rollers toward the installation target side in the second restrained state, thereby lifting and lowering via the pair of guide rollers. Since the object is moved horizontally so as to approach the installation object, the work of horizontally moving the object to be lifted can be performed easily and safely, and the usability of the second horizontal movement means can be enhanced.

According to the elevating system of claim 4, since the guide elevating means for elevating the pair of guide rollers via the wire is provided, the pair of guide rollers can be efficiently elevated and lowered, and the elevating operation of the elevating target can be performed. And workability of horizontal movement work can be improved.

1 is a diagram conceptually showing a lifting system according to an embodiment of the present invention; FIG. FIG. 4 is a diagram conceptually showing a lifting method for an object to be lifted; FIG. 3 is a diagram conceptually showing a lifting/lowering method for a lifting/lowering object following FIG. 2 ; FIG. 4 is a diagram conceptually showing a lifting/lowering method for a lifting/lowering object following FIG. 3 ; FIG. 5 is a diagram conceptually showing a lifting/lowering method for a lifting/lowering object following FIG. 4 ;

Embodiments of a lifting system according to the present invention will be described in detail below with reference to the accompanying drawings. First, [I] the basic concept of the embodiment will be described, then [II] the specific contents of the embodiment will be described, and finally [III] modifications of the embodiment will be described. However, the present invention is not limited by the embodiment.

[I] Basic concept of the embodiment First, the basic concept of the embodiment will be described. Embodiments generally relate to a lifting system for lifting and lowering an object to be lifted.

Here, the "elevating object" means an object to be elevated by an elevating system, and is a concept including, for example, construction materials, construction equipment, or construction jigs. It will be explained as a curing frame for

In addition, "installation target" means a component of a structure, for example, the skeleton of the structure (for example, pillars, wall materials, etc.) and attachments attached to the skeleton (for example, Although it is a concept including reinforcing members, etc., in the embodiment, it will be described as a pillar material of a structure.

In addition, although the specific structure and type of "structure" is arbitrary, for example, building structures such as office buildings, public facilities, commercial facilities, and housing complexes (as an example, condominiums, etc.), bridges, etc. This concept includes civil engineering structures and the like, and in the embodiment, an office building under construction will be described.

[II] Specific contents of the embodiment Next, specific contents of the embodiment will be described.

(Constitution)
First, the configuration of the lifting system 10 according to the embodiment and the configuration of the structure 1 to which the lifting system 10 is applied will be described.

(Composition - structure)
First, the configuration of the structure 1 will be described.

FIG. 1 is a diagram conceptually showing an elevating system 10 according to an embodiment of the present invention. Here, the X direction in FIG. 1 is the horizontal direction or width direction of the lifting system 10 (−X direction is the left direction of the lifting system 10, +X direction is the right direction of the lifting system 10), and the Z direction in FIG. The vertical direction of (+Z direction is the upward direction of the lifting system 10, -Z direction is the downward direction of the lifting system 10), and the direction orthogonal to the X direction in FIG. 1 and the Z direction in FIG. The direction reaching the front side of the paper is called the front direction of the elevation system 10 described later, and the direction reaching the depth side of the paper of FIG. 1 is called the rear direction of the elevation system 10).

The structure 1 is, for example, a steel frame (or reinforced concrete) building structure (specifically, an office building having a plurality of floors under construction), and as shown in FIG. , pillars 2, beams 3, and wall members (not shown).

Among them, the floor materials constitute the layers of the structure 1, and a plurality of floor materials are arranged in parallel in the vertical direction at intervals from each other.

Moreover, the pillars 2 support the floor materials, and are provided in plurality between the floor materials (that is, the space of each floor of the structure 1). Below, among the plurality of pillars 2, the pillar 4 provided with a pair of guide rollers 20, which will be described later, is referred to as an "installation target 4".

In the embodiment, the installation object 4 is provided with a lifting object H that is lifted and lowered using the lifting system 10, and before and after the lifting object H is lifted and lowered, the fixtures are attached to the installation object 4. etc. (specifically, a plurality of locations of the lifting object H are attached to the installation object 4 by means of fixtures or the like). Moreover, below, the operation|work which raises/lowers this raising/lowering object H is called "lifting work."

Here, the specific configuration of the lifting object H is arbitrary, but in the embodiment, as shown in FIG. It is constructed using a frame main body H1 constructed by combining a plurality of materials and a curing frame provided with a movable scaffolding portion H2 attached to the frame main body H1.

Moreover, the beams 3 support the floor materials, and are provided at positions where they can come into contact with the lower surface of each floor material, or are provided between the floor materials on the same floor.

Moreover, the wall material is for partitioning the space between the floor materials, and a plurality of wall materials are provided between the floor materials.

(Configuration - lift system)
Returning to FIG. 1, the lift system 10 will now be described.

The lifting system 10 is a system for lifting and lowering an object H to be lifted, and as shown in FIG. A portion 50 and a guide lifting portion (not shown) are provided.

(Construction - lift system - guide roller)
The pair of guide rollers 20 assists the elevation of the object H to be lifted by the suspending portion 30 . These pair of guide rollers 20 are configured using, for example, known guide rollers (for example, opening and closing type guide rollers, etc.) capable of switching between maintaining and releasing restraint on the object H to be raised and lowered, and are arranged in the vertical direction of the installation object 4. are arranged side by side at intervals substantially along the .

Here, "maintaining restraint" means restricting the vertical movement of the object H in a state in which the pair of guide rollers 20 are attached to the object H to be elevated. In the embodiment, "releasing restraint" means that the vertical movement of the object H is not restricted while the pair of guide rollers 20 are attached to the object H.

Specifically, as shown in FIG. 1, one of the pair of guide rollers 20 is connected to a portion corresponding to a predetermined floor of the installation target 4 by a fixture or the like. The other is connected to a portion corresponding to a layer above a predetermined layer of the installation object 4 by a fixture or the like.

In the following description, of the pair of guide rollers 20, the lower guide roller 21 will be referred to as the "lower guide roller 21", and the upper guide roller 22 will be referred to as the "upper guide roller 22". ”.

In the embodiment, the restraint states of the lifting object H by the pair of guide rollers 20 are "first restraint state", "second restraint state", "third restraint state", and "fourth restraint state". It is a concept that includes

Among these, the "first restraint state" means that restraint on the lifting object H by one of the pair of guide rollers 20 (the upper guide roller 22 in FIG. 1) is released, and one of the pair of guide rollers 20 is released. It means a state in which the other (the lower guide roller 21 in FIG. 1) maintains restraint on the object H to be lifted.

Further, the "second restraint state" means that restraint of the lifting object H by either one of the pair of guide rollers 20 (the upper guide roller 22 in FIG. 1) is maintained, and the other of the pair of guide rollers 20 It means a state in which restraint on the lifting object H by (the lower guide roller 21 in FIG. 1) is released.

Further, the "third restraint state" means that restraint of the lifting object H by one of the pair of guide rollers 20 (in FIG. 1, the upper guide roller 22) is maintained, and the other of the pair of guide rollers 20 is restrained. It means a state in which the object H to be lifted is kept restrained by (the lower guide roller 21 in FIG. 1).

Further, the "fourth restraint state" means that restraint on the lifting object H by one of the pair of guide rollers 20 (in FIG. 1, the upper guide roller 22) is released, and the other of the pair of guide rollers 20 is released. It means a state in which restraint on the lifting object H by (the lower guide roller 21 in FIG. 1) is released.

(Construction - Lifting system - Suspension part)
The suspending portion 30 is suspending means for elevating the elevation target H via the pair of guide rollers 20 . The suspending section 30 is configured using, for example, a known suspending device (eg, a crane device, etc.), and is provided at or near the structure 1 .

Specifically, as shown in later-described FIG. 3 , the suspension part 30 is provided in a story above the story in which the pair of guide rollers 20 is provided among the stories of the structure 1 .

The method of connecting the suspension portion 30 and the object H to be lifted is arbitrary. It is detachably connected via

(Configuration-lifting system-first horizontal movement unit)
Returning to FIG. 1 , the first horizontal movement unit 40 moves the pair of guide rollers 20 in a state in which the lifting object H is suspended by the suspension unit 30 (hereinafter referred to as a “suspended state”) before the lifting object H is lifted or lowered. is a first horizontal movement means for horizontally moving the lifting object H away from the installation object 4 via the . The first horizontal movement unit 40 is provided on the installation target 4, and specifically, as shown in FIG. It is detachably connected to each of the targets 4 by a fixture or the like.

Moreover, although the specific configuration of the first horizontal movement unit 40 is arbitrary, in the embodiment, as shown in FIG. 1, one of the pair of guide rollers 20 (FIG. Then, by pushing the lower guide roller 21) to the opposite side (left side in FIG. 1) of the installation object 4 side, the elevation object H is horizontally moved away from the installation object 4 via the pair of guide rollers 20. It is configured so that it is possible to

Specifically, it is configured using a known horizontal movement tool capable of pushing or pulling the lifting object H in the horizontal direction, and as an example, it is configured using a lever block (registered trademark). good too.

With such a configuration, the horizontal movement work of the lifting object H can be easily and safely performed (even a single worker can easily and safely perform the horizontal movement work), and the first horizontal movement section 40 usability can be enhanced.

(Configuration-lifting system-second horizontal movement unit)
The second horizontal movement unit 50 is a second horizontal movement means that horizontally moves the object H to be elevated and brought closer to the object 4 to be installed via the pair of guide rollers 20 in the suspended state after the object H is elevated. . The second horizontal moving part 50 is provided at a position different from the first horizontal moving part 40 in the installation target 4. Specifically, as shown in FIG. It is detachably connected to each of the upper guide roller 22 and the installation object 4 by means of fixtures or the like.

Further, although the specific configuration of the second horizontal movement unit 50 is arbitrary, in the embodiment, as shown in FIG. Then, by pulling the upper guide roller 22) toward the installation target 4 (the right side in FIG. 1), it is possible to horizontally move the elevation target H so as to approach the installation target 4 via the pair of guide rollers 20. is configured to be

Specifically, it is configured using a known horizontal movement tool capable of pushing or pulling the lifting object H in the horizontal direction, and as an example, it may be configured using a lever block.

With such a configuration, the horizontal movement work of the lifting object H can be easily and safely performed (even a single worker can easily and safely perform the horizontal movement work), and the second horizontal movement section 50 usability can be enhanced.

(Construction - lifting system - guide lifting section)
The guide elevating unit includes guide elevating means for elevating the pair of guide rollers 20 via a second wire (not shown). This guide elevating unit is configured using, for example, a known elevating device (a chain block as an example), and is provided on the installation object 4 or a member in the vicinity thereof (e.g., beam material 3, wall material, floor material, etc.). It is

Specifically, the guide lifting section is provided in a story above the story in which the pair of guide rollers 20 are provided among the stories of the structure 1 .

With such a guide elevating unit, the pair of guide rollers 20 can be efficiently elevated and lowered, and the workability of the elevating operation and the horizontal movement operation of the object H to be elevated can be improved.

With the lifting system 10 as described above, contact between the lifting object H and the installation object 4 or its peripheral members (for example, the beam 3, the floor material, the wall material, etc.) during the lifting work and the horizontal movement work of the lifting object H is prevented. can be avoided, and the safety of the lifting work and the horizontal movement work of the lifting object H can be improved.

(Method of lifting object)
Next, a method for raising and lowering the object H to be raised and lowered will be described.

2A and 2B are diagrams conceptually showing a method for raising and lowering an object H to be raised and lowered. FIG. 3 is a diagram conceptually showing the lifting method of the lifting object H subsequent to FIG. FIG. 4 is a diagram conceptually showing a lifting method of the lifting object H subsequent to FIG. FIG. 5 is a diagram conceptually showing the lifting method of the lifting object H subsequent to FIG.

The lifting method for the lifting object H is a method for lifting the lifting object H using the lifting system 10. As shown in FIGS. a step, a lifting step, a second horizontal movement step, and a connecting step.

Regarding the premise of performing the lifting method of the lifting object H, during the preparation process, the lifting object H (specifically, the lower part and the upper part of the lifting object H) is attached to the installation object 4 by a fixture. The description will be made assuming that they are detachably connected, and that the work of each process is performed by an operator M.

(Method of raising and lowering object - preparation process)
First, the preparation process will be described.

The preparation process is a process for making preparations for raising and lowering the object H to be raised and lowered.

Specifically, as shown in FIG. 2(a), a safety net 60 (for example, a vertical net) for preventing falling objects (for example, bolts, nuts, etc.) not shown is placed from the elevation object H in the installation object 4. At least one or more are installed in a range extending to a lower position than the lifting object H (in FIG. 2A, two are arranged substantially along the vertical direction). Also, it is checked whether or not the scaffolding H2 of the object H to be lifted and the lower end of the safety net 60 have been cleaned, and the cleaning is performed as necessary.

(Method of raising and lowering object - installation process)
Next, the mounting process will be described.

The attachment step is a step of attaching the pair of guide rollers 20 to the installation object 4 after the preparation step.

Specifically, as shown in FIG. 2(b), first, after the column 2a of the next section is provided at the upper end of the installation object 4 by a predetermined method, the pair of guide rollers 20 are vertically moved on the installation object 4. They are arranged side-by-side with an interval substantially along them. Next, the lower guide roller 21 is connected to a portion corresponding to a predetermined floor of the installation object 4 by a fixture, and the upper guide roller 22 is connected to a floor above the predetermined floor of the installation object 4. A pair of guide rollers 20 is attached to the installation target 4 by connecting the portion to be installed with a fixture. In this case, by setting the restraint state of the pair of guide rollers 20 to the third restraint state, it is possible to prevent the lifting object H from swaying in the horizontal direction during the lifting process.

Next, the scaffolding H2 is pivoted to a position where the scaffolding H2 of the elevation target H does not come into contact with the installation target 4 (for example, a position on the front side of the installation target 4) when the elevation target H is raised or lowered. Also, by opening the safety net 60, the safety net 60 is set to a operable state.

(Method of raising and lowering object - Hanging process)
Next, the suspension process will be described.

The suspension process is a process for suspending the lifting object H after the mounting process.

Specifically, as shown in FIG. 3C, first, the hook portion 31 of the suspending portion 30 and the suspending metal fitting attached to the lifting object H are connected via the first wire 32 (so-called slinging). conduct). Next, by removing the fixture that connects the lifting object H and the installation object 4, the weight of the lifting object H is supported by the hanging portion 30, thereby setting the object in a suspended state. Although the method of removing the fixture is arbitrary, for example, from the viewpoint of suppressing the shaking of the lifting object H, the lifting object H can be removed with the fixing fixture located at the lower part of the lifting object H attached. It is preferable to remove the fixture positioned on the upper part of the object H, and then remove the fixture positioned on the lower part of the object H to be lifted.

(Method for raising and lowering object-first horizontal movement step)
Next, the first horizontal movement step will be explained.

The first horizontal movement step is a step of horizontally moving the lifting object H away from the installation object 4 via the pair of guide rollers 20 after the hanging step.

Specifically, as shown in FIG. 3D, first, after switching the restraint state of the pair of guide rollers 20 from the third restraint state to the first restraint state, the first horizontal movement unit 40 is used to move downward. By pushing out the side guide roller 21 to the left side, the elevation object H is horizontally moved away from the installation object 4 via the pair of guide rollers 20 . Next, after horizontally moving the lifting object H to a predetermined position, the pair of guide rollers 20 are moved (in FIG. movement, forward and backward movement, and vertical movement).

(Method of raising and lowering object - raising and lowering process)
Next, the elevating process will be described.

The elevating process is a process for elevating the elevating object H after the first horizontal movement process.

Specifically, as shown in FIG. 4E, first, after switching the restraint state of the pair of guide rollers 20 from the first restraint state to the fourth restraint state (or the restraint state of the pair of guide rollers 20). is maintained in the first restraint state), the lifting part 30 raises the lifting object H to a predetermined position. Next, the scaffolding H2 of the object H to be lifted is pivoted to the position before the mounting step (for example, the position on the right side of the installation target 4) (note that the pivotal movement of some of the scaffoldings H2 is 2 may be performed during the horizontal movement step).

(Method for raising and lowering object - second horizontal movement step)
Next, the second horizontal movement step will be explained.

The second horizontal movement step is a step of horizontally moving the object H to be elevated through the pair of guide rollers 20 so as to approach the object 4 to be installed after the elevation step.

Specifically, first, the restricting means is removed from the pair of guide rollers 20 . Next, as shown in FIG. 4( f ), after switching the restraint state of the pair of guide rollers 20 from the fourth restraint state (or the first restraint state) to the second restraint state, the second horizontal movement unit 50 is used. By pulling the upper guide roller 22 to the right side, the lift object H is moved horizontally so as to approach the installation object 4 via the pair of guide rollers 20 .

Note that, for example, after the lifting object H is horizontally moved to a predetermined position, the restraint state of the pair of guide rollers 20 is switched from the second restraining state to the third restraining state. may be suppressed from wobbling in the horizontal direction, but the connecting step may be performed without switching the restrained state of the pair of guide rollers 20 .

(Method of raising and lowering object - connection process)
Next, the connection process will be described.

The connection step is a step of connecting the elevation object H and the installation object 4 after the second horizontal movement step.

Specifically, as shown in FIG. 5(g), among the portions of the installation object 4, a portion different from the portion to which the lifting object H was connected before the suspension process was performed (in FIG. 5(g) , a portion substantially corresponding to the height position of the elevation object H after the second horizontal movement step) by detachably connecting the elevation object H with a fixture, thereby connecting the elevation object H and the installation object 4. do. Although the method of connecting the fixtures is arbitrary, for example, after connecting the fixtures positioned in the lower part of the lifting object H, the fixing fixtures positioned in the upper part of the lifting object H are connected. is preferred.

After that, various removal operations (for example, removing the pair of guide rollers 20 from the installation object 4, disconnecting the hook portion 31 of the hanging portion 30 and the lifting object H, removing the safety net 60, etc.) are performed. Run.

By the above-described lifting method, contact between the lifting object H and the installation object 4 or its peripheral members (for example, the beam 3, the floor material, the wall material, etc.) is prevented during the lifting work and the horizontal movement work of the lifting object H. Therefore, it is possible to improve the safety of the lifting work and the horizontal movement work of the lifting object H.

In addition, when raising the raising/lowering object H to a higher position, a series of steps from the preparation step to the connection step may be repeated multiple times. In this case, in the second and subsequent series of steps, when the pair of guide rollers 20 used in the first series of steps is used again, the pair of guide rollers is moved through the second wire by the guide lifting section. By raising the guide rollers 20, the pair of guide rollers 20 may be replaced.

(Effect of Embodiment)
As described above, according to the embodiment, the pair of guide rollers 20 arranged side by side at intervals substantially along the vertical direction of the installation object 4 can switch between maintaining and releasing the restraint on the lifting object H. A pair of guide rollers 20, a suspension unit 30 for lifting and lowering the lifting object H via the pair of guide rollers 20, and before lifting and lowering the lifting object H, in the suspended state, the lifting object H is suspended via the pair of guide rollers 20. and a first horizontal moving unit 40 that horizontally moves away from the installation object 4, and after the elevation object H is lifted and lowered, the elevation object H is moved closer to the installation object 4 via the pair of guide rollers 20 in the suspended state. and the second horizontal movement unit 50 that horizontally moves the object H, so that contact between the object H and the installation object 4 or its peripheral members can be avoided during the lifting operation and the horizontal movement operation of the object H. It is possible to improve the safety of lifting work and horizontal movement work.

In addition, in the first restraint state, the first horizontal movement unit 40 pushes the other of the pair of guide rollers 20 to the side opposite to the installation target 4 side, thereby moving the lift target H through the pair of guide rollers 20. is horizontally moved away from the installation object 4, the horizontal movement work of the elevation object H can be performed easily and safely, and the usability of the first horizontal movement unit 40 can be enhanced.

In addition, in the second restrained state, the second horizontal movement unit 50 pulls one of the pair of guide rollers 20 toward the installation object 4 , thereby moving the elevation object H to the installation object 4 via the pair of guide rollers 20 . , the horizontal movement of the lifting object H can be performed easily and safely, and the usability of the second horizontal movement unit 50 can be enhanced.

In addition, since the pair of guide rollers 20 is provided with a guide elevating unit that elevates the pair of guide rollers 20 via the second wire, the pair of guide rollers 20 can be efficiently lifted and lowered, and the elevation work and the horizontal movement work of the lifting object H can be performed efficiently. Workability can be improved.

[III] Modifications to the Embodiments Although the embodiments of the present invention have been described above, specific configurations and means of the present invention are within the scope of the technical ideas of each invention described in the claims. , can be arbitrarily modified and improved. Such modifications will be described below.

(Problem to be solved and effect of invention)
First, the problems to be solved by the invention and the effects of the invention are not limited to the above-described contents, and the present invention solves problems not described above or achieves effects not described above. and may solve only part of the problems described or provide only part of the advantages described.

(Regarding shapes, numbers, structures, and time series)
With respect to the components illustrated in the embodiments and drawings, the shape, numerical value, structure of multiple components, or time-series interrelationships may be arbitrarily modified and improved within the scope of the technical idea of the present invention. can be done.

(About lifting system)
In the above-described embodiment, the lifting system 10 has been described as including the guide lifting section, but the present invention is not limited to this, and the guide lifting section may be omitted, for example.

Further, in the above-described embodiment, the lift system 10 has a pair of guide rollers 20, but the present invention is not limited to this. For example, when a series of steps from the preparation step to the connection step is performed multiple times to raise and lower the lifting object H, when performing the above-described series of steps after the second time, the pair of steps used in the first lifting method When using a pair of guide rollers 20 different from the guide rollers 20, a plurality of pairs of guide rollers 20 may be provided. In this case, the replacement work of the pair of guide rollers 20 can be omitted.

(About lifting method)
In the above-described embodiment, the preparatory step is explained, but the present invention is not limited to this, and the preparatory step may be omitted, for example.

Further, in the above-described embodiment, the lifting method is used to raise the lifting object H, but the lifting method is not limited to this, and the lifting method may be used to lower the lifting object H, for example. In this case, in the lifting process, the lifted object H is lowered to a predetermined position by the hanging part 30 . Moreover, when performing a series of processes from a preparation process to a connection process several times, you may lower a pair of guide roller 20 via a 2nd wire by a guide raising/lowering part.

Further, in the above-described embodiment, in the first horizontal movement step, in the first restraint state in which the upper guide roller 22 is released from the lifting target H and the lower guide roller 21 maintains the lifting target H, By pushing out the lower guide roller 21 to the left side using the first horizontal movement part 40, it was explained that the object H to be raised and lowered is horizontally moved away from the object 4 to be installed via the pair of guide rollers. can't For example, in a first restraint state in which the restraint of the lifting object H by the lower guide roller 21 is released and the restraint of the lifting object H by the upper guide roller 22 is maintained, the upper guide roller 22 is moved by using the first horizontal moving unit 40. to the left side, the elevation object H may be horizontally moved away from the installation object 4 via the pair of guide rollers 20 .

Further, in the above-described embodiment, in the second horizontal movement step, in the second restrained state in which the upper guide roller 22 maintains the restraint of the lifting object H, and the lower guide roller 21 releases the restraining of the lifting object H, By pulling the upper guide roller 22 to the right side using the second horizontal movement unit 50, it is described that the lifting object H is moved horizontally so as to approach the installation object 4 via the pair of guide rollers, but this is not the only option. do not have. For example, in a second restrained state in which the restraint of the lifting object H by the lower guide roller 21 is maintained and the restraint of the lifting object H by the upper guide roller 22 is released, the lower guide roller is moved using the second horizontal movement unit 50. 21 may be pulled to the right side to move horizontally so as to bring the lifting object H closer to the installation object 4 via the pair of guide rollers 20 .

(Appendix)
The lifting system of Supplementary Note 1 is a lifting system that lifts and lowers an object to be lifted, and includes a pair of guide rollers that are arranged side by side with a gap substantially along the vertical direction in the installation object, and maintains restraint on the object to be lifted. and a pair of guide rollers that can be opened and closed, a suspension means for lifting and lowering the lifting object via the pair of guide rollers, and a suspension that suspends the lifting object by the lifting means before lifting and lowering the lifting object. a first horizontal movement means for horizontally moving the object to be lifted away from the installation object via the pair of guide rollers in the state; and a second horizontal movement means for horizontally moving the object to be lifted to approach the object to be installed via a roller.

The lifting system of Supplementary Note 2 is the lifting system of Supplementary Note 1, wherein the first horizontal movement means releases restraint on the lifting object by either one of the pair of guide rollers, and In a first restraint state, which is a state in which the restraint of the lifting object by the other is maintained, the other of the pair of guide rollers is pushed out to the side opposite to the installation object side, thereby moving the pair of guide rollers. The elevation object is horizontally moved away from the installation object through the object.

The lifting system according to Supplementary Note 3 is the lifting system according to Supplementary Note 1 or 2, wherein the second horizontal movement means maintains restraint of the lifting object by one of the pair of guide rollers, and In the second restraint state, which is a state in which restraint of the lifting object by the other of the rollers is released, by pulling one of the pair of guide rollers toward the installation object, The lifting object is moved horizontally so as to approach the installation object.

A lifting system according to Appendix 4, in the lifting system according to any one of Appendixes 1 to 3, further includes guide lifting means for lifting and lowering the pair of guide rollers via wires.

(Effect of Supplementary Note)
According to the lifting system described in Supplementary Note 1, a pair of guide rollers arranged side by side with a gap substantially along the vertical direction of the installation target, and a pair of guide rollers capable of switching between maintaining and releasing restraint on the lifting target guide rollers, suspension means for elevating the object to be elevated via the pair of guide rollers, and horizontal movement of the object to be elevated away from the installation object via the pair of guide rollers in the suspended state before elevating the object to be elevated and a second horizontal movement means for horizontally moving the lifting object so as to approach the installation object via a pair of guide rollers in the suspended state after lifting the lifting object. During the lifting work and the horizontal movement work of the lifting object, contact between the lifting object and the installation object or its peripheral members can be avoided, and the safety of the lifting work and the horizontal movement work of the lifting object can be improved.

According to the lifting system described in appendix 2, the first horizontal movement means pushes the other of the pair of guide rollers to the side opposite to the installation target side in the first constrained state, thereby moving the pair of guide rollers. Since the object to be lifted is moved horizontally away from the object to be set via the first horizontal movement means, the work of horizontally moving the object to be lifted can be performed easily and safely, and the usability of the first horizontal movement means can be enhanced.

According to the lifting system described in Supplementary Note 3, the second horizontal movement means pulls one of the pair of guide rollers toward the installation target side in the second restrained state, thereby lifting the object via the pair of guide rollers. is moved horizontally so as to approach the installation object, the work of horizontally moving the object to be lifted can be performed easily and safely, and the usability of the second horizontal movement means can be enhanced.

According to the lifting system described in Supplementary Note 4, since the guide lifting means for lifting and lowering the pair of guide rollers via the wire is provided, the pair of guide rollers can be lifted and lowered efficiently. Workability of horizontal movement work can be improved.

1 Structure 2 Column 2a Column 3 Beam 4 Installation Object 10 Elevating System 20 Guide Roller 21 Lower Guide Roller 22 Upper Guide Roller 30 Suspension Part 31 Hook Part 32 First Wire 40 First Horizontally Moving Part 50 Second Horizontal Moving part 60 Safety net H Elevating object H1 Frame main body H2 Scaffold M Operator

Claims (4)

A lifting system for lifting and lowering an object,
A pair of guide rollers that are arranged side by side at intervals substantially along the vertical direction in the installation target, the pair of guide rollers being capable of switching between maintaining and releasing restraint on the lifting target;
Suspension means for lifting and lowering the lifting object via the pair of guide rollers;
First horizontal movement means for horizontally moving the elevation object away from the installation object via the pair of guide rollers in a suspended state in which the elevation object is suspended by the suspension means before the elevation object is elevated and lowered. When,
a second horizontal movement means for horizontally moving the elevation object so as to approach the installation object via the pair of guide rollers in the suspended state after the elevation object is elevated;
Lifting system with The first horizontal movement means is in a state in which either one of the pair of guide rollers is released from the lifting object and the other of the pair of guide rollers is still restrained from the lifting object. In the 1 restraint state, by pushing out the other of the pair of guide rollers to the side opposite to the installation target side, the elevation object is horizontally moved away from the installation target via the pair of guide rollers. ,
Lifting system according to claim 1. The second horizontal movement means is in a state in which either one of the pair of guide rollers maintains restraint on the elevation object and the other of the pair of guide rollers releases restraint on the elevation object. 2. In the restrained state, by pulling one of the pair of guide rollers toward the installation target, the lift object is moved horizontally so as to approach the installation target via the pair of guide rollers.
Lifting system according to claim 1 or 2. A guide elevating means for elevating the pair of guide rollers via a wire is provided,
Lifting system according to any one of claims 1 to 3.

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