JP4888694B2 - Lifting device and climbing method thereof - Google Patents

Description

  The present invention relates to a lifting device and a climbing method thereof.

  For example, in the construction of super high-rise RC (reinforced concrete) apartment buildings, tower cranes are often used to unload reinforcing bars in the frame work, but in order to reduce the load on the tower crane, the formwork and support have been replaced. There is a case where unloading of the formwork or the like when performing is performed by another lifting device (temporary lift) without using a tower crane. Conventionally, there are lifts installed in a staircase or an elevator opening in a building core as a temporary lift for refilling the formwork. This temporary lift is a lifting device installed in an area between the floor where the formwork is dismantled and the floor where the formwork is built, and the lift mast erected in an elevator opening, etc. It consists of the structure provided with the carrier which raises / lowers along a lift mast. (For example, refer patent documents 1-3.).

  On the other hand, at the site of construction work for super high-rise RC apartment buildings, finishing work is often performed sequentially from the lower floor in parallel with the frame work. In this case, for example, long span spans are combined with the tower crane and temporary lift described above. A lifting device (temporary elevator) for lifting a finishing material such as an elevator or raising and lowering a worker is used. The temporary elevator has a configuration including an elevator mast extending in the vertical direction and a transporter that moves up and down along the elevator mast.

  By the way, recently, an increasing number of tower cranes used in frame construction are installed in the form of floor climbing inside buildings from the viewpoint of cost reduction. However, since there are not many empty spaces inside the building, the tower crane is installed inside the building, so that there is no space for installing the temporary elevator inside the building. Therefore, in order to avoid concentrated arrangement of lifting equipment (a tower crane, a temporary lift, a temporary elevator), the temporary elevator described above is often installed on the outer periphery of the building.

In recent years, there is an example in which the temporary lift and the temporary elevator described above are arranged vertically in the same opening. Specifically, a temporary lift is installed in the upper floor area from the floor where the formwork is built (frame construction floor) to the floor where the formwork is dismantled, and the formwork is dismantled. Temporary elevators will be installed in the lower floor area from the floor directly below the floor to the lowest floor of the building.
JP-A-5-97356 JP 10-252275 A Registered Utility Model No. 3024523

  However, in the above-described conventional technique in which a temporary elevator is installed on the outer periphery of the building, materials such as finishing materials lifted by the temporary elevator are carried from the balcony through each dwelling unit. There is a problem that a small transport distance is increased as compared with the case where a temporary elevator is installed in the opening. In addition, when materials are carried in from the balcony through each dwelling unit, materials such as finishing materials are carried in through narrow spaces and stepped parts, so when installing a temporary elevator in the staircase or elevator opening There is a problem that the labor for carrying in materials increases. In particular, when there is a large step such as an inverted beam structure, the labor for carrying in the material is remarkably increased.

  In recent years, the number of building exteriors in the form of curtain walls has been increasing rapidly. However, if temporary elevators are installed along the curtain wall exterior, the installation method of the wall joints used to install the temporary elevators becomes complicated. There is a problem of doing. As a result, the temporary design image involves a lot of adjustment work, and the temporary wall connection itself is becoming expensive.

  Furthermore, in the above-described conventional technology in which the temporary lift and the temporary elevator are arranged vertically in the same opening, there is a problem that not only the temporary elevator but also the temporary lift must be stopped when climbing the temporary elevator. . In addition, when performing the work of extending the elevator mast of the temporary elevator, the work of adding the elevator mast is a work in a narrow opening, so the workability of the mast extending work is poor and it is complicated to ensure safety. Management is required.

  The present invention has been made in consideration of the above-described conventional problems, and an object thereof is to improve the workability of lifting and small transporting work of materials such as finishing materials to reduce labor. Moreover, it aims at simplifying the installation plan of the wall joining used for installation of a lifting apparatus, and aiming at the cost reduction of wall joining itself. It is another object of the present invention to make it possible to use a temporary lift during climbing of a temporary elevator and to improve workability and safety of an elevator mast extension work.

  In the first aspect of the present invention, the temporary lift and the temporary elevator are placed with the temporary lift up and the temporary elevator down in the open space formed in the structure under construction and extending in the vertical direction over a plurality of floors. In the lifting device having a configuration arranged vertically, the temporary lift includes a lift base provided at a lower portion in the temporary lift region, and is erected on the lift base and extends in the vertical direction. And a lift mast with a rack rail attached thereto, and a transporter having a pinion meshed with the rack rail and mounted with a drive source for rotationally driving the pinion. The mast is extended beyond the temporary elevator area to reach the temporary lift area above the temporary elevator area, and the lift mast is It is characterized by being slidably mounted in the vertical direction with respect to the mast.

  Due to these features, the temporary elevator is installed in the opening space inside the structure, so the transport distance is shorter than when a temporary elevator is installed on the outer periphery of the structure, and there are no steps or narrow spaces. A widely open place becomes a place for taking in the load from the temporary elevator. In addition, the wall connection is simpler than when the temporary elevator is installed on the outer periphery of the building. Further, since the elevator mast is extended to the temporary lift area, the elevator mast is added to the climbing area in the wide upper floor area, not in the narrow opening. The temporary lift is provided with a lift mast provided with a rack rail, and a lift carrier equipped with a pinion and its drive source. The elevator mast is extended to the temporary lift area. Since the lift mast is slidably attached in the vertical direction, the lift mast can be moved upward in a self-propelled manner using a drive source mounted on the carrier.

  According to a second aspect of the present invention, in the lifting apparatus according to the first aspect, the lift base is made of a base beam material spanned over an opening on the lowest floor in the temporary lift region, and both ends of the base beam material are It is characterized by being able to expand and contract or rotate.

  With such a feature, when climbing the temporary lift, both ends of the base beam material can be contracted or bent so that both ends of the base beam material are not caught by the casing around the opening space.

  According to a third aspect of the present invention, in the lifting apparatus according to the first or second aspect, the carrying device is provided with a landing beam member that spans an opening of the landing floor of the carrying device. It is characterized in that both ends of the beam material can be expanded and contracted or rotated.

The above-described lifting device according to the present invention, after connecting the transporter to the elevator mast, activates the drive source and rotationally drives the pinion, thereby temporarily moving the lift mast along the elevator mast ( Lift mast) can be climbed, but when climbing a temporary lift, the landing beam material is bridged over the opening, so that the vertical force during climbing acts on the housing on which the landing beam material is placed, and the elevator mast. The vertical force does not work when climbing.
In addition, when using the temporary lift as a stage, the landing beam material of the temporary lift that has been stopped is bridged over the opening, so that the load of the material placed on the carrier and the load (vertical force) of the carrier itself can be received. It will be received by the housing through the floor beam material.
In addition, since both ends of the landing beam material can be expanded and contracted or rotated, both ends of the landing beam material can be contracted or bent during normal operation of the temporary lift. Will not get caught in the enclosure around the open space.

  According to a fourth aspect of the present invention, in the lifting apparatus according to any one of the first to third aspects, a temporary shielding floor for closing an opening is provided between the temporary lift and the temporary elevator, and the temporary shielding is provided. The temporary lift area and the temporary elevator area are partitioned by a floor.

  Due to these features, the temporary shield floor can prevent people and objects from falling below the temporary lift, and can block noise when the temporary elevator is driven. It becomes.

  According to a fifth aspect of the present invention, in the climbing method for a lifting apparatus according to any one of the first to fourth aspects, the elevator mast is extended upwardly by adding parts of the elevator mast to the upper end of the elevator mast. Connecting the transporter and the elevator mast or the housing of the structure, driving the drive source, and holding the transporter in place, at least the lift mast to the elevator mast. And a step of moving upward along the line.

  Due to such characteristics, when climbing the temporary lift, the lift mast is lifted using the elevator mast as a guide, and the temporary lift is climbed in a self-propelled manner. Further, since the elevator mast is extended when climbing the temporary lift, it is not necessary to extend the elevator mast when climbing the temporary elevator.

  According to the lifting device of the present invention, it is possible to improve the workability of lifting and small transporting work of materials such as finishing materials and reduce labor. Moreover, while simplifying the installation plan of the wall joint used for installation of the lifting device, the cost of the wall joint itself can be reduced. Furthermore, the temporary lift can be used during climbing of the temporary elevator, and the workability and safety of the elevator mast extension work can be improved.

  Moreover, according to the climbing method of the lifting apparatus according to the present invention, the temporary lift can be climbed safely and in a short time. In addition, when climbing the temporary elevator, it is not necessary to add the elevator mast, so the downtime associated with climbing the temporary elevator can be shortened.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a lifting device and a climbing method thereof according to the present invention will be described with reference to the drawings.

  First, the structure of the lifting apparatus 1 in this Embodiment is demonstrated.

FIG. 1 is a perspective view showing a lifting device 1 in the present embodiment.
As shown in FIG. 1, a lifting device 1 is a temporary lifting device used in a new construction or renovation work of a multi-layered structure, for example, a permanent elevator shaft space (hereinafter referred to as an elevator shaft space formed in the structure). , Described as EV shaft space S). The EV shaft space S is a space that serves as a hoistway for a main elevator (not shown), and extends across a plurality of floors in the vertical direction formed through the floors F of each floor of the structure. Open space. That is, the openings K of each floor are formed at the same position and vertically arranged on the same axis. The lifting device 1 includes a temporary lift 2 and a temporary elevator 3, and the temporary lift 2 and the temporary elevator 3 are vertically moved in the EV shaft space S with the temporary lift 2 on the upper side and the temporary elevator 3 on the lower side. Consists of an arranged configuration. The lifting device 1 is a temporary object for construction, and is removed when the main elevator is installed.

  The temporary elevator 3 is a known wire rope type temporary elevator that moves up and down from the first floor of the structure to the floor where the frame work has been completed (the floor where the dismantling of the formwork (not shown) has been completed). As a schematic configuration of the temporary elevator 3, an elevator base 5 placed on the bottom surface of the EV shaft space S, an elevator mast 6 erected on the elevator base 5, a bowl-shaped elevator carrier 7, and an elevator carrier 7 Wires 8, 8, a shelves 9 having top sheaves 11, 11 around which the wires 8, 8 are wound, and an elevator driving device 10 having an inverter hoist (not shown) that winds the wires 8, 8, It comprises the structure provided with.

For example, the elevator base 5 has a configuration in which a plurality of shape steels are arranged in parallel.
The elevator mast 6 has a configuration in which a plurality of frame-like mast members 12... The elevator mast 6 extends in the vertical direction in the EV shaft space S and extends beyond the temporary elevator region A until reaching the temporary lift region B above it. In other words, the elevator mast 6 extends from the bottom of the EV shaft space S to the rising construction floor (N floor) where reinforcing bar reinforcement and formwork are built. The “temporary elevator area A” here is an area of the lifting device 1 that functions as the temporary elevator 3, and specifically, is a range from the elevator base 5 to the bench 9. The “temporary lift area B” is an area of the lifting device 1 that functions as the temporary lift 2, and specifically, a range from a lift base 15 described later to the upper ends of lift masts 16, 16 described later. It is.

  The elevator mast 6 is provided with a rack rail 13 that extends in the vertical direction (lifting direction). The rack rail 13 is attached to a substantially middle position in front of the mast member 12 (elevator mast 6), and extends from the lower end to the upper end of the elevator mast 6.

The elevator transporter 7 has a bowl shape having a loading platform 7a for placing materials. The elevator transporter 7 is provided with a guide member (not shown) that slides along the pillars 6 a of the elevator mast 6. The elevator transporter 7 is lifted by winding the wires 8 and 8 with the elevator drive device 10. Then, the elevator car 7 is lifted along the elevator mast 6, and on the contrary, the elevator car 7 is suspended and sent down along the elevator mast 6 by feeding the wound wires 8, 8.
The wires 8 and 8 are wound around the top sheaves 11 and 11 and folded up and down to extend. One end of the wire 8 is fixed to the elevator car 7, and the other end of the wire 8 is wound around the inverter hoist of the lower elevator driving device 10.

The platform 9 is a self-climbing mount that rises along the elevator mast 6, and is arranged on the upper part of the temporary elevator area A. Specifically, the slide 9 is slid along a pinion (not shown) meshed with the rack rail 13, a drive source (not shown) for rotating the pinion, and a column 6 a of the elevator mast 6. Each of the guide members 14 is mounted.
The elevator driving device 10 is placed on the elevator base 5.

FIG. 2 is a perspective view of the temporary lift 2 when the temporary lift 2 is viewed from the front, and FIG. 3 is a perspective view of the temporary lift 2 when the temporary lift 2 is viewed from the back.
As shown in FIGS. 2 and 3, the temporary lift 2 has a function (loading function) for unloading the formwork and the like when the formwork and pipe support are refilled, and a tower crane or the like. This is a device that also has a function (stage function) for receiving materials such as ALC panels that have been carried in from the formwork dismantling floor (N2 floor) to dismantle the unillustrated formwork to the rising construction floor (N floor) It is a rack and pinion drive type lift that moves up and down. As a schematic configuration of the temporary lift 2, a lift base 15 provided at a lower portion of the temporary lift region B, lift masts 16 and 16 erected on the lift base 15, a bowl-shaped lift carrier 17 (carrying device), and It comprises the structure provided with.

  The lift base 15 is a pedestal for supporting the temporary lift 2, and includes a plurality of base beam members 18, 18 spanning the opening K ′ on the lowest floor (N3 floor) in the temporary lift region B. The base beam members 18 and 18 are arranged on both sides of the elevator mast 6 so as to extend in the front-rear direction (depth direction) of the temporary lift 2, and the base beam members 18 and 18 on both sides are arranged in parallel. Yes. That is, the two base beam members 18, 18 are arranged in parallel with the elevator mast 6 sandwiched between the left and right sides. These base beam members 18 and 18 are telescopic beam members such as outriggers, and both end portions 18a and 18a thereof can be expanded and contracted. Specifically, the base beam member 18 has both ends 18a, 18a made of steel having a rectangular cross section inserted in a cylindrical main body 18b having a rectangular cross section, and both ends 18a, 18a are inserted from both ends of the main body 18b. It is configured to be able to be taken in and out manually or by machine control. The base beam material 18 is stretched over the opening K ′ in an extended state in which both end portions 18a and 18a are extended, and both end portions 18a and 18a of the base beam material 18 are framed around the opening K ′. It is placed on (slabs, beams, etc.) and fixed with anchor bolts.

  The lift masts 16 and 16 are columnar members arranged vertically on both sides of the elevator mast 6, and lower ends thereof are joined to the main body portions 18 b and 18 b of the base beam materials 18 and 18 by welding or bolts. . The lift mast 16 is provided with a plurality of guide rollers 19 that are slidably fitted to the pillars 6a of the elevator mast 6, and the lift masts 16 and 16 are interposed via the guide rollers 19. The elevator mast 6 is slidably attached to both sides of the elevator mast 6. The lift masts 16 and 16 are respectively provided with rack rails 20 and 20 extending along the axial direction of the lift masts 16 and 16, that is, extending in the vertical direction (vertical direction). The rack rails 20, 20 extend over the entire length of the lift masts 16, 16 and are joined to the side surfaces on the front side of the lift masts 16, 16 by welding or bolts.

  The lift carrier 17 has a bowl-like shape having a loading platform 21 on which a formwork, an ALC panel, and the like are placed. The lift carrier 17 is provided with a plurality of pinions (not shown) that are respectively meshed with the two rack rails 20 and 20 and a drive source (not shown) that drives the pinions to rotate. As shown in FIGS. 2, 3, and 4, the lift carrier 17 extends in the horizontal direction and landing beam members 22, 22 that extend over an opening K ″ of any carrier landing floor. Is provided. The landing beam members 22 and 22 extend in the left-right direction (lateral direction) of the temporary lift 2 and are respectively disposed before and after the loading platform 21. The two landing beam members 22 and 22 are arranged in parallel. It has been. That is, the two landing beam members 22 and 22 are arranged in parallel with the loading platform 21 of the lift carrier 17 sandwiched between the front and rear. The landing beam material 22 is a telescopic beam material such as an outrigger, and both end portions 22a and 22a thereof can be expanded and contracted. Specifically, the landing beam material 22 has both ends 22a, 22a made of steel having a rectangular cross section inserted in a cylindrical main body 22b having a rectangular cross section, and both ends 22a, 22a from both ends of the main body 22b. Can be inserted and removed manually or by machine control.

As shown in FIGS. 2 and 3, the lifting apparatus 1 is provided with a temporary shielding floor 23 that closes the opening K ′ between the temporary lift 2 and the temporary elevator 3. The temporary shielding floor 23 is a plate-like member formed along the opening K ′ and having a portion of the elevator mast 6 cut out. The temporary shielding floor 23 is below the temporary lift 2 and above the temporary elevator 3. Has been placed. Specifically, the temporary shielding floor 23 is attached to the bottom surface of the lift base 15 and is disposed in the opening K ′ on the lowest floor (N3 floor) in the temporary lift area B. The temporary elevator area A and the temporary lift area B are partitioned through the temporary shielding floor 23.
The lift base 15 (base beam members 18 and 18), the lift masts 16 and 16, and the temporary shielding floor 23 are integrally formed.

  As shown in FIG. 3, the above-described elevator mast 6 is supported by a housing of the structure via a plurality of wall connecting members 24 fixed to a slab around the opening K. A known wall connecting material can be used as the wall connecting material 24. The wall connecting members 24 are attached to the pillars 6a on both sides of the elevator mast 6, respectively.

  Next, the usage method of the lifting apparatus 1 which consists of an above-described structure is demonstrated.

  As shown in FIG. 1, the lifting device 1 having the above-described configuration can simultaneously operate the temporary lift 2 and the temporary elevator 3, while performing refilling work such as a formwork by the temporary lift 2. Then, it is possible to carry in the finishing material and the like by the temporary elevator 3. Of course, only the temporary elevator 3 can be operated with the temporary lift 2 stopped. Conversely, only the temporary lift 2 can be operated with the temporary elevator 3 stopped.

  As shown in FIGS. 2 and 3, the temporary lift 2 is used for unloading materials and the like by raising and lowering the lift carrier 17 between the formwork dismantling floor (N2 floor) and the rising construction floor (N floor). Can do. Specifically, a drive source (not shown) mounted on the lift carrier 17 is driven, and a plurality of pinions (not shown) attached to the lift carrier 17 are driven to rotate. When these pinions are rotationally driven, the pinion is meshed with the rack rails 20, 20, so that the lift carrier 17 on which materials and the like are placed is moved up and down along the rack rails 20, 20. At this time, both end portions 22a and 22a of the landing beam member 22 are prevented from being caught by a casing (slab, beam, etc.) around the opening K... The two landing beam members 22 and 22 are both contracted.

  For example, the temporary lift 2 is used for unloading a formwork or the like in a refilling operation such as a formwork or a pipe support (not shown). Specifically, first, a lift carrier 17 is arranged on a formwork disassembly floor (N2 floor) for disassembling a formwork (not shown), and a formwork (not shown) or the like is placed on the loading platform 21 of the lift carrier 17. Thereafter, the drive source described above is driven to rotate the pinion in a certain direction (hereinafter, referred to as a positive direction), thereby moving the lift carrier 17 upward. Then, when the lift carrier 17 rises to the rising construction floor (N floor), the drive source is stopped, and a mold or pipe support (not shown) placed on the lift carrier 17 is moved to the rising construction floor (N floor). Let In this way, the dismantled formwork and the like can be unloaded to the rising construction floor (N floor). After that, when the lift carrier 17 is moved again to the formwork dismantling floor (N2 floor), the above-mentioned drive source is driven in reverse rotation to rotate the pinion in the direction opposite to the forward direction when lifted. The transporter 17 moves downward. Then, when the lift carrier 17 is lowered to the formwork dismantling floor (N2 floor), the drive source is stopped, and the lift carrier 17 is arranged on the formwork dismantling floor (N2 floor).

  Further, as shown in FIG. 4, the temporary lift 2 can be used as a stage without raising and lowering the lift carrier 17. Specifically, the lift transporter 17 is placed on an arbitrary transporter landing floor and the lift transporter 17 is stopped. At this time, the two landing beam members 22 and 22 are respectively in an extended state, and both end portions 22a of the landing beam members 22 and 22 are bridged over the opening K ″ on the carrier landing floor. . That is, both end portions 22a ... are projected from both ends of the main body portions 22b, 22b of the landing beam members 22 and 22, respectively, and these both end portions 22a ... are placed on a frame (slab, beam, etc.) around the opening K ″. By placing it, the load from the lift carrier 17 is received. A material such as an ALC panel can be temporarily placed on the loading platform 21 of the lift carrier 17 supported by the two landing beam members 22 and 22.

  On the other hand, as shown in FIG. 1, the temporary elevator 3 lifts the elevator carrier 7 between the floor immediately above the elevator base 5 and the floor immediately below the platform 9, and unloads materials and lifts personnel. Can be used for Specifically, an inverter hoist (not shown) provided in the elevator drive device 10 is driven to wind up the other ends of the wires 8 and 8 on both sides. At this time, the wires 8 and 8 on both sides are wound up by the same amount at the same speed. When the other ends of the wires 8 and 8 are wound up, one ends of the wires 8 and 8 wound around the top sheaves 11 and 11 are moved upward. Accordingly, the elevator car 7 fixed to one end of the wires 8 and 8 is lifted so as to be lifted. Moreover, when the brake of the inverter hoist (not shown) provided in the elevator drive device 10 is released and the wires 8 and 8 on both sides are sent out, one end of the wires 8 and 8 wound around the top sheaves 11 and 11 and folded back. Moves downward. Thereby, the elevator car 7 fixed to one end of the wires 8 and 8 is lowered so as to be suspended.

  For example, the temporary elevator 3 is used when a finishing material or the like is unloaded on an intermediate floor where the formwork is dismantled and the construction of the frame is completed. Specifically, the elevator transporter 7 is placed on the first floor of the structure, and the finishing material or the like carried into the site is placed on the elevator transporter 7. Then, the said inverter hoist is driven, the other end of the wires 8 and 8 is wound up, and the elevator carrier 7 is raised. The elevator hoist is stopped when the elevator car 7 rises to an arbitrary entry floor such as a finishing material, and the finishing material or the like is carried into the structure from the elevator car 7. Thereafter, when returning the elevator car 7 to the first floor, the brake of the inverter hoist is released, the wires 8 and 8 are sent out, and the elevator car 7 is lowered.

  Next, a climbing method of the lifting device 1 having the above-described configuration will be described.

  First, as shown in FIGS. 3 and 5, a step of refilling the wall connecting members 24 that support the elevator mast 6 is performed. For example, when the wall connecting material 24 is installed on the lowermost floor (N3 floor) of the temporary lift area B where the lift base 15 is located, the wall installed on the lowermost floor (N3 floor) of the temporary lift area B. The connecting members 24 are removed, and the wall connecting members 24 are attached to the upper floor (N1 floor).

  Next, as shown in FIG. 5, a step of extending the elevator mast 6 upward by adding a component (mast member 12) of the elevator mast 6 to the upper end of the elevator mast 6 is performed. Specifically, the mast member 12 is three-dimensionally assembled in advance, and the mast member 12 is lifted by a tower crane (not shown) and moved above the elevator mast 6. A rack rail 13 is attached to the mast member 12. And the mast member 12 is mounted on the upper end of the elevator mast 6, and the upper end of the elevator mast 6 and the lower end of the mast member 12 are connected. Note that the mast member 12 may be assembled at the upper end of the elevator mast 6 without assembling the mast member 12 in advance.

  Next, a step of connecting the lift carrier 17 and the elevator mast 6 is performed. Specifically, the lift carrier 17 is disposed on the floor above the lowest floor in the temporary lift area B ′ after climbing (shown in FIG. 7). For example, when climbing only one floor, the lift carrier 17 is landed on the floor (N1 floor) that is one level higher than the current formwork dismantling floor (N2 floor). And the two landing beam materials 22 and 22 with which the lift carrier 17 was equipped are each extended, and both ends 22a ... of these landing beam materials 22 and 22 are made into a carrier landing floor (N1 floor). Over the opening K. That is, both end portions 22a ... are projected from both ends of the main body portions 22b, 22b of the landing beam members 22, 22, and these both end portions 22a ... are placed on a frame (slab, beam, etc.) around the opening K. The load from the lift carrier 17 is received. Then, the lift carrier 17 and the elevator mast 6 are connected via a connecting member such as a bracket (not shown), and the lift carrier 17 is fixed to the elevator mast 6.

  Next, a step of releasing the anchor bolts and the like that fix the both end portions 18a of the base beam members 18, 18 is performed. As a result, the base beam members 18 and 18 can be expanded and contracted, that is, both end portions 18a and 18a of the base beam member 18 can be inserted into and removed from the main body portion 18b.

  Next, as shown in FIG. 6, a step of contracting the base beam materials 18 and 18 is performed. Specifically, both end portions 18a and 18a projecting from both ends of the main body portion 18b of the base beam material 18 are drawn into the main body portion 18b by manual or mechanical control, and both end portions 18a and 18a are pulled into the main body portion 18b. Store inside.

  Next, a drive source (not shown) provided in the lift carrier 17 is driven, and the lift masts 16 and 16 and the lift base 15, which are integrally formed, while the lift carrier 17 is held in place, are temporarily installed. A step of moving the shielding floor 23 upward along the elevator mast 6 is performed. Since the lift carrier 17 is connected to the elevator mast 6, it does not move even if the drive source is driven. The drive source rotates in the reverse direction, that is, rotates a pinion (not shown) provided in the lift carrier 17 in the direction opposite to the normal direction (the rotation direction when the lift carrier 17 is raised during normal operation). To drive. When the pinion is rotated in the reverse direction by the drive source, the rack rails 20 and 20 meshing with the pinion are pushed upward. Thus, the lift masts 16, 16 to which the rack rails 20, 20 are attached move upward along the elevator mast 6 while sliding the guide rollers 19... On the pillars 6 a of the elevator mast 6. At this time, the lift base 15 integrally attached to the lift masts 16 and 16 and the temporary shielding floor 23 integrally attached to the lift base 15 also rise together with the lift masts 16 and 16. When the lift masts 16 and 16 are lifted from a predetermined climbing position, that is, when the lift base 15 passes the base installation floor (N2 floor) after climbing, the drive source is stopped and the lift mast 16 is stopped. , 16 etc. stop rising.

  Next, as shown in FIG. 7, a step of extending the base beam materials 18 and 18 is performed. Specifically, both end portions 18a, 18a drawn and stored in the main body portion 18b of the base beam material 18 are projected from both ends of the main body portion 18b by manual or mechanical control, and protruded.

  Next, a drive source (not shown) provided in the lift carrier 17 is driven, and the lift masts 16 and 16 and the lift base 15, which are integrally formed, while the lift carrier 17 is held in place, are temporarily installed. A step of moving the shielding floor 23 downward along the elevator mast 6 is performed. The drive source is driven to rotate forward, that is, to rotate a pinion (not shown) provided in the lift carrier 17 in the forward direction. When the pinion is rotated in the forward direction by the drive source, the rack rails 20 and 20 meshing with the pinion are pushed downward. As a result, the lift masts 16, 16 provided with the rack rails 20, 20 move downward along the elevator mast 6 while sliding the guide rollers 19... On the pillars 6 a of the elevator mast 6. At this time, the lift base 15 integrally attached to the lift masts 16 and 16 and the temporary shielding floor 23 integrally attached to the lift base 15 are also lowered together with the lift masts 16 and 16. Then, when both end portions 18a ... of the projected base beam members 18, 18 are placed on the base installation floor (N2 floor) frame, the drive source is stopped and the lift masts 16, 16, etc. are lowered. Stop.

  Next, a step of fixing both end portions 18a of the base beam members 18, 18 to the frame on the base installation floor (N2 floor) with an anchor bolt or the like is performed. Thereby, the lift base 15 is fixed so as not to move on the base installation floor (N2 floor).

Next, a step of releasing the connection between the lift carrier 17 and the elevator mast 6 is performed, and a step of contracting the landing beam members 22 and 22 is performed. Specifically, a connecting material (not shown) connecting the lift carrier 17 and the elevator mast 6 is removed. Further, both end portions 22a ... of the projected landing beam members 22, 22 are drawn into the main body portions 22b, 22b to make the landing beam members 22, 22 contracted. As a result, the lift carrier 17 can move up and down.
The climbing of the temporary lift 2 is completed through the above steps.

Subsequently, as shown in FIG. 7, the step of climbing the temporary elevator 3 shown in FIG. 1 is performed by raising the bench 9 and moving it upward.
Specifically, a drive source (not shown) mounted on the bench 9 is driven, and a pinion provided on the bench 9 is driven to rotate. Since this pinion is meshed with a rack rail 13 attached to the elevator mast 6, the bench 9 moves upward along the elevator mast 6 while sliding the guide member 14 on the pillars 6 a of the elevator mast 6. Moving. Then, when the bench 9 is raised to a predetermined position, the drive source is stopped and the raising of the bench 9 is stopped. In this way, climbing of the temporary elevator 3 only needs to move the bench 9 upward.

  According to the lifting device 1 having the above-described configuration, the temporary lift 2 and the temporary elevator 3 are arranged vertically in the same EV shaft space S, so that compared with the case where the temporary elevator 3 is installed on the outer periphery of the building. And rational arrangement. That is, the degree of freedom in the arrangement plan of other lifting devices (tower crane or the like) is increased, and the useless part associated with the installation of the temporary elevator 3 or the like can be reduced.

  Moreover, according to the lifting apparatus 1 which consists of an above-described structure, since the temporary elevator 3 is installed in EV shaft space S inside a structure, compared with the case where the temporary elevator 3 is installed in the outer peripheral part of a structure, The distance (small transport distance) when the materials and the like unloaded by the temporary elevator 3 are carried into the structure from the elevator transporter 7 is shortened. In addition, a place that is widely opened (a dance hall before the main elevator) is not a step or a narrow place such as a balcony or the like, and is a place for taking in the load from the temporary elevator 3. Thereby, the workability of lifting / small transporting work of materials such as finishing materials by the temporary elevator 3 can be improved, and the labor of lifting / small transporting work can be reduced.

  Moreover, since the temporary elevator 3 is installed in the EV shaft space S inside the structure, the wall connecting members 24 are simpler than when the temporary elevator 3 is installed on the outer periphery of the building. Thereby, the installation plan of the wall connecting members 24 used for installing the lifting device 1 can be simplified, and the cost of the wall connecting members 24 itself can be reduced.

  Further, according to the lifting device 1 having the above-described configuration, since the elevator mast 6 is extended to the temporary lift region B, the work of adding the elevator mast 6 during climbing is performed on a narrow intermediate floor below the temporary lift 2. Not on the large top floor. Thereby, workability | operativity and safety | security of the extension work of the elevator mast 6 can be improved.

  The temporary lift 2 is provided with lift masts 16 and 16 to which rack rails 20 and 20 are attached, and a lift carrier 17 on which a pinion (not shown) and its drive source are mounted. The elevator mast 6 is provided with a temporary lift. The lift mast 16 is extended to the region B, and the lift masts 16 are attached to the elevator mast 6 so as to be slidable in the vertical direction. 16 can be moved upward in a self-propelled manner. As a result, climbing of the temporary lift 2 is safe and easy.

  Normally, when the temporary lift 2 is installed, the self-supporting height of the lift masts 16 and 16 (the height at which the lift mast 16 can be used in a self-supporting state) is determined by the strength of the lift masts 16 and 16 themselves. However, according to the lifting device 1 having the above-described configuration, the lift masts 16 and 16 are slidably attached to the elevator mast 6 in the vertical direction, so that the lift masts 16 and 16 are supported in the horizontal direction. Can be taken from the elevator mast 6. Thus, the height of the lift masts 16 and 16 can be set to exceed the maximum self-supporting height of the lift mast 16, and the lower floors (N3) of the formwork dismantling floor without reinforcing the lift masts 16 and 16 can be set. The lift masts 16 and 16 can be extended from the floor) to the rising construction floor (N floor), and the lift carrier 17 can be landed on the rising construction floor (N floor).

  Further, according to the lifting apparatus 1 having the above-described configuration, the lift base 15 includes the base beam members 18 and 18 spanned over the opening K ′ on the lowest floor (N3 floor) in the temporary lift region B. Since both end portions 18a of the base beam members 18, 18 can be extended and contracted, when climbing the temporary lift 2, the both end portions 18a of the base beam members 18, 18 are caught by the casing around the EV shaft space S. The two ends 18a of the base beam members 18, 18 can be contracted so as not to be present. Thereby, climbing of the temporary lift 2 can be performed smoothly.

  Further, according to the lifting device 1 having the above-described configuration, the lift carrier 17 is provided with the landing beam members 22, 22 spanned over the opening K. The both ends 22a of the landing beam members 22 and 22 are placed on the casing around the opening K, and the landing beam members 22 and 22 are bridged over the opening K, so that the vertical force during climbing is applied to the landing beam member 22. , 22 acts on the housing on which the vehicle is placed, and the vertical force during climbing does not act on the elevator mast 6. Accordingly, when designing the elevator mast 6, it is sufficient to consider the horizontal force during climbing, it is not necessary to consider the vertical force during climbing of the temporary lift 2, and the temporary lift without reinforcing the elevator mast 6. The temporary elevator 3 can be used when climbing 2.

  Further, when the temporary lift 2 is used as a stage, both the end portions 22a of the landing beam members 22 and 22 are placed on the casing around the opening K, and the landing beam members 22 and 22 are bridged over the opening K. Thus, the load of the material placed on the lift carrier 17 and the load of the lift carrier 17 itself are received by the housing via the landing beam members 22 and 22 without acting on the lift masts 16 and 16. . Accordingly, the elevator mast 6 only needs to bear a horizontal force due to an earthquake or the like, and even if the temporary lift 2 is used as a stage, the lift masts 16 and 16 do not need to be reinforced, and the temporary lift can be simply configured. 2 can be used as a stage.

  Further, since both end portions 22a of the landing beam members 22 and 22 can be expanded and contracted, both end portions 22a of the landing beam members 22 and 22 can be contracted during normal operation of the temporary lift 2. In other words, both end portions 22a of the landing beam members 22, 22 are not caught by the casing around the EV shaft space S. Thereby, the lift carrier 17 can be moved up and down smoothly, and the end portions 22a of the landing beam members 22, 22 can be projected only when necessary as described above.

  Further, according to the lifting device 1 having the above-described configuration, the temporary shielding floor 23 that closes the opening K ′ is provided between the temporary lift 2 and the temporary elevator 3, and the temporary lifting area is provided by the temporary shielding floor 23. Since B and the temporary elevator area A are partitioned, the temporary shielding floor 23 can prevent a person or an object from falling below the temporary lift 2. Thereby, safety can be further improved. Further, the temporary shielding floor 23 can block the noise when the temporary lift 2 and the temporary elevator 3 are driven. Furthermore, since the temporary shielding floor 23 is rain-cured, it is necessary to separately provide sound-insulating equipment and rain-curing. Absent.

  Further, according to the lifting device 1 having the above-described configuration, the lift masts 16, 16, the lift base 15, and the temporary shielding floor 23 are integrally formed. Therefore, when climbing the temporary lift 2, The masts 16 and 16 are moved upward, and the lift base 15 and the temporary shielding floor 23 are also moved upward together. Thereby, it is not necessary to replace the lift base 15 and the temporary shielding floor 23 separately, and the labor for climbing the temporary lift 2 can be reduced.

  Further, according to the climbing method of the lifting device 1 having the above-described configuration, when the temporary lift 2 is climbed, the lift masts 16 and 16 are lifted using the elevator mast 6 as a guide, and the temporary lift 2 is self-propelled. Climb to the ceremony. Thereby, the temporary lift 2 can be climbed safely and in a short time.

  Further, according to the climbing method of the lifting device 1 having the above-described configuration, when the temporary lift 2 is climbed, the elevator mast 6 is extended, and therefore, the elevator mast 6 needs to be added when the temporary elevator 3 is climbed. There is no. Thereby, the downtime of the temporary elevator 3 accompanying climbing of the temporary elevator 3 can be shortened.

  As mentioned above, although the embodiment of the lifting device and the climbing method according to the present invention has been described, the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the spirit thereof. . For example, in the above-described embodiment, when the lifting device 1 is climbed, the lift carrier 17 is connected to the elevator mast 6. However, in the present invention, the lift carrier may be connected to a structural frame. Thereby, the vertical force at the time of climbing can be made to act on a housing via a connection location.

  In the above-described embodiment, the temporary elevator 3 is lifted and lowered by the lifting method using the wires 8 and 8, but the temporary elevator according to the present invention is a temporary elevator that lifts and lowers using a rack and pinion mechanism. There may be.

  In the embodiment described above, the base beam members 18 and 18 are disposed so as to sandwich the elevator mast 6 from both sides (left and right). However, in the present invention, the base beam member sandwiches the elevator mast 6 from the front and rear. Alternatively, the base beam material may be disposed between a plurality of elevator masts, and the base beam material may be disposed on any of the front, rear, left, and right sides of the elevator mast. May be.

  In the above-described embodiment, the lift masts 16 and 16 are disposed so as to sandwich the elevator mast 6 from both sides (left and right). However, the present invention is arranged so that the lift mast sandwiches the elevator mast from the front and rear. The lift mast may be sandwiched between a plurality of elevator masts, and the elevator mast and the lift mast may be arranged in parallel in the front-rear or left-right direction. Also good.

  In the embodiment described above, the lift masts 16, 16, the lift base 15, and the temporary shielding floor 23 are integrally formed. However, in the present invention, the lift mast, the lift base, and the temporary shielding floor are integrated. It does not have to be. In this case, after the lift mast is moved upward, the lift base and the temporary shielding floor need to be replaced separately.

  In the above-described embodiment, the lift base 15 is composed of the two base beam members 18 and 18 whose both ends can be expanded and contracted. However, in the present invention, the lift base has one or more than three bases. You may be comprised from the beam material. Further, the lift base may be made of a beam material that does not expand and contract at both ends and does not rotate, or may be made of a configuration other than the beam material (plate shape or the like). In the present invention, both ends of the base beam material may be rotatable. In this case, the base beam material is in a folded state by rotating both ends of the base beam material when the lift base is moved upward, and in other cases, the both ends of the base beam material are straightly extended. To.

  In the above-described embodiment, the lift carrier 17 is provided with the two landing beam members 22 and 22 whose both ends can be expanded and contracted. However, in the present invention, one landing beam member is provided in the carrier. Alternatively, three or more may be provided. In the present invention, both ends of the landing beam material may be rotatable. In this case, when using the temporary lift as a stage, or when moving the lift mast or the like upward, the landing beam material should be in a state where both ends of the landing beam material are straightly projected, and otherwise During normal operation of the temporary lift, both ends of the landing beam material are rotated and folded. In the present invention, the carrying device may be provided with a beam material that does not extend or rotate at both ends, or the carrying beam may not be provided with the above-described landing beam material.

  In the embodiment described above, the temporary shield floor 23 is provided on the floor where the lift base 15 of the temporary lift 2 is installed. However, in the present invention, the temporary shield floor is installed on a different floor from the lift base. Alternatively, the lift base and the temporary shielding floor may be separated from each other. Furthermore, the present invention may not be provided with a temporary shielding floor. For example, when the lift base is plate-shaped, the lift base can also function as the temporary shielding floor.

  In addition, in the range which does not deviate from the main point of this invention, it is possible to replace suitably the component in above-mentioned embodiment with a well-known component, and you may combine the above-mentioned modification suitably.

It is a whole perspective view of the lifting apparatus for demonstrating embodiment which concerns on this invention. It is a front perspective view of the temporary lift for demonstrating embodiment which concerns on this invention. It is a back surface perspective view of the temporary lift for demonstrating embodiment which concerns on this invention. It is a front perspective view of a carrier for explaining an embodiment concerning the present invention. It is a front perspective view of the temporary lift showing the climbing process of the lifting apparatus for demonstrating embodiment which concerns on this invention. It is a front perspective view of the temporary lift showing the climbing process of the lifting apparatus for demonstrating embodiment which concerns on this invention. It is a front perspective view of the temporary lift showing the climbing process of the lifting apparatus for demonstrating embodiment which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lifting apparatus 2 Temporary lift 3 Temporary elevator 6 Elevator mast 15 Lift base 16 Lift mast 17 Lift carrier (carriage)
18 Base beam material 20 Rack rail 22 Landing beam material 23 Temporary shielding floor A Temporary elevator area B Temporary lift area S EV shaft space (opening space)

Claims (5)

In the opening space that extends over multiple floors in the vertical direction formed in the structure under construction, the temporary lift and the temporary elevator are arranged up and down with the temporary lift up and the temporary elevator down In a lifting device consisting of
The temporary lift includes a lift base provided at a lower portion in a temporary lift region, a lift mast provided on the lift base and provided with a rack rail extending in the vertical direction, and the rack rail. A structure having a pinion to be meshed and a carrier mounted with a drive source for rotationally driving the pinion;
The elevator mast of the temporary elevator is extended until it reaches the temporary lift area above the temporary elevator area,
The lifting apparatus is characterized in that the lift mast is attached to the elevator mast so as to be slidable in the vertical direction. The lifting device according to claim 1,
The lifting base is composed of a base beam material spanned over an opening on the lowest floor in a temporary lift region, and both ends of the base beam material are extendable or rotatable. The lifting device according to claim 1 or 2,
The transporter is provided with a landing beam member that spans the opening of the landing floor of the transporter, and both ends of the landing beam member can be extended or contracted or rotated. Heavy equipment. In the lifting apparatus in any one of Claim 1 to 3,
A temporary shielding floor that closes an opening is provided between the temporary lift and the temporary elevator, and the temporary lift area and the temporary elevator area are partitioned by the temporary shielding floor. apparatus. In the climbing method of the lifting apparatus in any one of Claim 1 to 4,
Extending the elevator mast upward by adding parts of the elevator mast to the upper end of the elevator mast;
Connecting the transporter and the elevator mast or the housing of the structure;
A method of climbing a lifting apparatus, comprising: driving the drive source and moving the lift mast upward along the elevator mast while holding the transporter in place. .

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