JPH0745777B2 - Method and apparatus for climbing lotus stand for lift - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method for raising and lowering a lotus stand (also called lotus stand) of a lift and an apparatus used therefor, and particularly, in a construction work, the lift is accompanied by its progress and change. The present invention relates to a method and apparatus for raising and lowering a lotus stand in a self-elevating manner.

[Conventional technology]

An elevator is known in which a hoistway is provided in a building, a lotus stand is installed on the top of the hoistway, a pair of vertical rails is provided in the hoistway, and a cage is installed along the rails to ascend and descend.
The one in which a luggage carrier is installed instead of the cage is called a lift as an elevator for construction work. It is necessary to sequentially increase the lift of the lift as the construction work of the building progresses, and the relationship between the cargo bed, its counterweight, and the hoisting wire wound between them and the drive motor remains unchanged. It can be carried out by simply moving the lotus stand installed on top of the object to a higher place and unwinding the winding wire. For this movement, (1) using a separate lifting machine,
(2) A method of using a chain block or pulley and a winch by providing a support frame above the new height.
(3) A method in which a driving machine is provided on the lotus stand and the self-elevation is performed along the lifting rails separately provided in the hoistway, (4) A method in which the hoistway is formed by an independent mast and hoisted along the mast. Have been adopted.

The building may be made of reinforced concrete, but the installation of a lift is effective, and for high-rise buildings, the hoistway is installed in the main steel frame structure, and lotus stand is installed above it.

[Problems to be solved by the invention]

In the conventional lift, when moving the lotus stand upward, the method (1) uses a tower crane or the like installed for construction, but it is necessary to maintain the opening above the hoistway for this operation. , Rain curing is required, and the rooftop construction remains, delaying rooftop waterproofing work. In addition, the dismantling of the entire lift will result in extra damage as a large lifting machine. The method (2) requires a separate temporary beam to be supported by the main steel frame in order to obtain the lifting reaction force of the lotus stand.
Regulated by the ability of chain block or winch,
Since it is necessary to divide the loading platform, it takes time and labor,
It can be mainly used only when dismantling, and it must be laterally moved and then hung while avoiding the lotus stand machine frame. In the method (3), it is necessary to install the lifting rail for the entire lift in the hoistway, and moreover, it is necessary to ensure the accuracy of the engagement between the rack provided on this rail and the pinion of the drive machine, and The convenience advantage of using is compromised. The method (4) loses the advantage of utilizing the steel frame structure, requires a pair of masts that can stand on its own, and the lotus stand must be lightweight. Also, (1),
The weight of the lotus stand in case of (3) is large because the lotus stand itself is hung between the steel frames, and in (1), the installation position is restricted by the capacity of the crane, and therefore the movement line in the site. Is also affected. Further, in (3), because the lotus stand is lifted together with the counterweight or the cargo stand due to the wire hanging by the traction system, the capacity of the drive motor must be large, or part of the weight must be stored in the frame structure. There are drawbacks such as requiring complicated steps.

[Means for solving problems]

The present invention was developed especially in order to eliminate the drawbacks of the conventional technology as described above, and a lotus stand climbing device is installed in a lift having a normal structure. The gist of the invention is to move the lotus stand up and down in a shingling manner, and as a second invention, an apparatus for carrying out such a climbing method is provided. And that climbing device
A climbing support beam supported by the frame structure above the hoistway of the loading platform, a climbing rail suspended from the beam, and a telescopic mechanism connecting the lotus platform and the loading platform frame, and the lotus platform and the loading platform frame. It is characterized by comprising engaging and disengaging means for engaging and disengaging the climbing rail individually.

Due to the operation of the climbing device, the lotus stand receives a reaction force on the self-claimed climbing rail, and it is possible to move up and down sequentially while moving the rail with the opposite reaction force, thus achieving the object of the present invention.

〔Example〕

An apparatus for carrying out the method of climbing a lotus stand for a lift according to the present invention will be described in detail with reference to an embodiment shown in FIGS. 1 to 3. FIG. 1 is a front view of a lift which is the object of the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a plan view mainly of lotus stand, in which 1 is a steel frame structure of a building. The hoistway 3 of the cargo bed 2 is formed inside the frame structure formed by the columns and beams. Reference numeral 4 denotes a pair of guide rails supported vertically by the beams of the frame structure 1 and fixed vertically, and the loading platform 2 forms a loading platform frame 5 by a frame body 21 that is erected from both ends and has upper and lower rollers. 22 by guide rail 4
You can move up and down along.

Next, 6 is a lotus stand, which has two pairs of outriggers 62 provided in the longitudinal direction below the floor 61 and has a horizontally projecting posture for supporting the upper surface of the beam of the frame structure 1 and the frame structure 1. It is possible to move up and down in the hoistway 3 depending on the withdrawal posture released from the. Reference numeral 7 is a counter-eight provided to the carrier frame 5, and a plurality of sheaves 71 are provided, and a raising wire 8 having a fixed base end on the lotus stand 6 is provided on a large number of sheaves 63 on the lotus stand and the carrier frame 5. It is hung around a plurality of sheaves 51 and the like, and a drive motor (not shown) is installed between the sheaves 51 and the sheaves 51 are balanced so as to move up and down. The above structure is common to conventional lifts, and is well understood as a known structure including a structure in which the counterweight 7 is not provided.

In the present invention, the lift as a lifting facility as described above,
A climbing device 10 for lotus stand is added. The climbing device 10 includes a climbing support beam 11, a climbing rail 12, a telescopic mechanism 13, and engaging / disengaging means 14. The climbing support beam 11 is parallel to the lotus stand 6 and
2 beams supported by the frame structure 1 above the lotus stand 6 with a spacing wider than the width of the gate-shaped frame structure 15 erected at both ends.
The support beams 11 are held by a space defined by. The support beam 11 is assembled by a steel frame and equipped with outriggers 16 at both ends thereof, and like the outriggers 62 of the lotus stand 6, the support beam 11 is supported on the beam of the frame structure 1 or is movable. An upper end of a climbing rail 12 is fixed to both ends of the support beam 11 and is vertically suspended, and a steadying bracket 17 is provided at a joint portion thereof. The rail 12 is preferably a columnar body having a rectangular horizontal cross section, and a large number of through holes 18 are vertically provided at regular intervals (usually 30 cm) over the inward facing surface and the outer surface of the hoistway 3. Set up. Guide rollers 64 along the guide rails 4 are provided at both ends of the lotus stand 6 to guide the lotus stand 6 up and down.

As shown in FIG. 2, support beams 65 are provided on the lower surfaces of both ends of the lotus stand 6, both ends thereof are exposed to the inner surface of the climbing rail, and an upper stopper 66 is provided at that position. The upper stopper 66 has a casing structure, in which a hydraulic cylinder 67 that extends and retracts toward the through hole 18 of the climbing rail 12 is provided in a direction perpendicular to the support beam 65, and a pin 68 at its tip is engaged with the through hole 18. Take off.

Next, support beams 52 similar to the support beams 65 of the lot stand 6 are provided at both ends of the carrier frame 5, and lower stoppers 53 similar to the upper stoppers 66 are provided at both ends thereof. These upper and lower stoppers 66 and 53 are provided with rollers 54 along the rail 12, and these are collectively referred to as engagement / disengagement means 14.

The support beam 65 and the support beam 52 are provided with a telescopic mechanism 13 at a position directly below the outrigger 62 of the lotus stand 6, and both ends thereof are pivotally attached to both support beams to vertically connect the lotus stand 6 and the luggage carrier frame 5. .
The telescopic mechanism 13 is shown as a hydraulic cylinder, but may be of another type such as a jack. Similarly, the advance / retreat mechanism of the pin 68 described above may be electrically driven.

Another symbol 19 shown in the figure is a support member for the guide rail 4 to the frame structure 1, and 81 is an extra winding drum of the raising wire 8 provided on the lotus stand 6. Reference numeral 69 in FIG. 3 denotes a cabana-type automatic fall prevention device, both of which are publicly known.

The hydraulic system for the extension / contraction mechanism 13, the engaging / disengaging means 14, and the outrigger 16 is not shown together with that of the outrigger 62 of the lotus stand, but is preferably provided on the lotus stand 6.

[Action]

The climbing method of the present invention and the operation of the apparatus of the second invention for carrying out the method will be described based on steps.

A hoistway 3 is formed by the steel frame structure 1, a guide rail 4 is installed over the existing height of the building, and it is vertically supported by a support member 19. Next, this guide rail 4
The lottery stand 6 is provided along the roller 64, the loading platform frame 5 is provided by the roller 22, and the winding wire 8 is wound around the drive unit and the counterweight provided at the bottom of the hoistway 3 and the loading platform 2 is used. Make up the lift. At this time, the lotus stand 6 is fixed on the upper part of the hoistway 3 by the outriggers 62, and the loading platform 2 is vertically moved along the guide rails 4.

When the construction work progresses and the lifting height of the loading platform 2 becomes insufficient, the lotus platform 6 is moved upward. For that purpose, the climbing device 10 is added to the basic lift configuration.

First, two climbing support beams 11 supported by the frame structure 1 above the lotus stand 6 are erected at intervals by the frame structure 15. This support beam 11 is attached to the frame structure 1 by the outrigger 16.
The four climbing rails 12 are fixed to the lower surfaces of both ends of the beams. This rail 12 has a length of almost two floors of the frame structure 1, and the upper end of the rail 12 is supported by a bracket 17
Stick to. The rail 12 is stabilized by rollers of upper and lower stoppers 66 and 53. Then, by a normal operation method, the carrier frame 5 is hung up to the top of the hoistway 3 at that time, where the lotus stand 6 and the carrier frame 5 are first connected by the expansion mechanism 13, and the cylinder is disengaged in a shortened state. The upper and lower pins of the means 14 are inserted into the through holes of the climbing rail 12 and fastened. Thus, the lotus stand 6, the carrier frame 5, and the climbing device are supported by the frame structure 1, respectively.

From this state, first, the climbing support beam 11 and the climbing rail 12 start to rise.

1. Shorten the outriggers 16 of the support beam 11 to free the support beam 11 and the climbing rail 12.

2. Operate the lower stopper 53 to pull out the pin 68 from the through hole 18 of the rail 12 and disengage it.

3. Extend the hydraulic cylinder 13 and push the pin 68 of the lower stopper 53.
Is inserted into the lower through hole 18 and fixed.

4. The upper stopper 66 is operated to disengage the pin 68 from the through hole 18, and the lower stopper 53 supports the load.

5. Shorten the hydraulic cylinder 13. The rail 12 and the support beam 11 rise together with the lower stopper 66.

6. The pin 68 of the upper stopper 66 is projected to engage with the rail 12 to support the load.

The steps of 7.2 to 6 are repeated, and the rail 12 and the support beam 11 are lifted up in accordance with the stroke of the hydraulic cylinder 13.

8.Extend the outrigger 16 of the climbing support beam 11,
It is supported on the beam above the frame structure 1, and then the lotus stand 6 starts to rise.

Under the support of the upper and lower stoppers in the process of 9.6, the lotus stand 6
The outrigger 62 is shortened, and the roller 64 makes it movable up and down.

10. Disengage the upper stopper 66 from the rail 12.

11. The hydraulic jack 13 is extended, and by engaging the lower stopper 53 with the rail 12, a reaction force is applied to the support beam 11 to raise the lotus stand 6.

12. Engage the upper stopper 66 with the rail 12 to disengage the lower stopper 53 from the rail, and shorten the hydraulic jack 13.

13. Attach the lower stopper 53 to the rail 12.

14. When the above steps 10 to 13 are repeated, the state shown in FIG. 1 is obtained.

15. Add 10 and 11 more steps.

16. The outrigger 62 of the lotus stand 6 is extended, and the movement of the lotus stand 6 to the new upper position is completed.

17. The hydraulic jack 13 releases the connection between the lotus platform 6 and the luggage carrier frame 5, and the normal operation of raising and lowering the luggage carrier is started. In the next climbing, the process returns to the step 1.

The lifting operation of the lotus stand 6 according to the above-mentioned steps can be further improved by providing a control device as a part of the climbing device. The control device for this is the frame structure 1.
Installed on the existing floor of, the hydraulic system for engaging and disengaging operation of the engaging and disengaging means including the upper and lower stoppers, and the expanding and contracting operation of the expanding and contracting mechanism are individually and sequentially controlled, and by the push button, The system will be used for lifting / lowering the lotus stand, lifting / lowering of the climbing support beam and rail, and emergency stop. Also, the safety system can be controlled for engaging / disengaging the pin between the engaging / disengaging means and the climbing rail. Then, as a whole, each operation can be programmed into a program so that the operation can be performed automatically and systematically by selecting a push button.

The climbing device 10 may be kept equipped until the end of the construction work, and when the lotus stand 6 needs to be lowered, the above steps may be followed in reverse order. Also, dismantling and removal of the lift may be carried out in the same manner as the lowering. However, at the time of descending, since the upper and lower stopper pins 68 engaged with the through holes 18 of the climbing rail 12 are always loaded, the hydraulic cylinder 13 is given a delicate operation, and the pin 68 It is necessary to smooth the release of the above, and this operation will be added to the control items.

〔The invention's effect〕

The present invention forms a hoistway by the main frame structure, adds a climbing device to the lift that raises and lowers the loading platform, and operates the lotus stand to raise and lower the lotus stand in a scaled manner. Is a self-elevating type that can be moved as it is, and in particular, we have completed a climbing method that sequentially moves the lotus stand of the lift that needs to be raised and lowered as the construction work progresses, and to carry out that method as well. A device is provided. According to the present invention, in a lift that is complicatedly assembled in a hoistway, it is not necessary to secure an upper space for the operation of a large lifting machine, and it is not necessary to install a hoisting rail over the entire length of the hoistway. Absent. Furthermore, the load supporting material added as a climbing device is configured to have a simple steady rest as a frame structure, and does not require special accuracy.

Since the climbing method of the present invention and the device used for the climbing method do not assume a large tower crane or the like,
Not only can you reduce the cost required for the crane, but you can also use the lift at the site where you do not need to install the crane, and you can independently lift the lotus stand regardless of the planned use of the crane.
Moreover, since it is possible to operate while directly monitoring the lifting status,
Greatly effective for construction management and safety management.

[Brief description of drawings]

The drawings show an embodiment of an apparatus for carrying out the climbing method of the present invention. Fig. 1 is a front view of a lift, Fig. 2 is a side view thereof, and Fig. 3 is a plan view mainly of a lotus stand of the lift. is there. DESCRIPTION OF SYMBOLS 1 ... Frame structure, main steel frame, 2 ... Loading platform, 3 ... Hoistway, 4 ... Guide rail, 5 ... Loading platform frame, 6 ... Lotus platform, 7 ... Counterweight, 8 ... Winding wire, 10 ... Climbing device, 11 ... Climbing Support beam, 12 ... Climbing rail, 13 ... Telescopic mechanism, hydraulic cylinder, 14 ... Engaging means, 16 ...
Outrigger, 17 ... Bracket, 18 ... Through hole, 52,65 ...
Support beam, 53 ... Lower stopper, 62 ... Outrigger, 66 ...
Upper stopper, 67 ... Hydraulic cylinder, 68 ... Pin

Claims (3)

[Claims] 1. A method for raising and lowering a lotus stand of a lift provided with a carrier frame capable of moving up and down in a hoistway, wherein the lift includes a climbing support beam supported by a frame structure above the lotus stand and suspended from the beam. Equipped with a climbing rail that is supported by the climbing rail, a telescopic mechanism that connects the lotus stand and the luggage carrier frame, and an engagement / disengagement means that separately engages and disengages the lotus stand and the luggage carrier frame with the climbing rail. The means are alternately engaged with and disengaged from the climbing rails for the lotus stand and the cargo frame, and when the lotus stand is fixed to the frame structure by disengagement and disengagement, the lotus stand takes a reaction force to the climbing support beam and the climbing frame. When the rail and the climbing insect are lifted and fixed to the frame structure, and the climbing support beam is fixed to the frame structure, the reaction force is applied to the climbing rail and the lotus Climbing method of lifting Rendai, characterized in that fixed to the rack assembly by lifting the inchworm expression. 2. A lift in which a carrier frame is vertically movable in a hoistway, the lift is equipped with a climbing device, and the climbing device includes a climbing support beam supported by a frame structure above a lotus stand. Includes a climbing rail suspended from this support beam, an expansion / contraction mechanism for connecting the lotus stand and the luggage carrier frame, and an engaging / disengaging means for separately engaging and disengaging the lotus stand and the luggage carrier frame with the climbing rail. A lotus stand climbing device for lifts. 3. The climbing device according to claim 2, wherein the climbing support beam has an outrigger in a longitudinal direction and is supported by the frame structure when the outrigger is extended.