KR20150069300A - Method for installing and removing concrete blocks - Google Patents

Method for installing and removing concrete blocks Download PDF

Info

Publication number
KR20150069300A
KR20150069300A KR1020130155557A KR20130155557A KR20150069300A KR 20150069300 A KR20150069300 A KR 20150069300A KR 1020130155557 A KR1020130155557 A KR 1020130155557A KR 20130155557 A KR20130155557 A KR 20130155557A KR 20150069300 A KR20150069300 A KR 20150069300A
Authority
KR
South Korea
Prior art keywords
concrete block
handling device
protective barrier
concrete
block
Prior art date
Application number
KR1020130155557A
Other languages
Korean (ko)
Inventor
귈라움 레이몽
Original Assignee
매니토웍 크레인 그룹 프랑스
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 매니토웍 크레인 그룹 프랑스 filed Critical 매니토웍 크레인 그룹 프랑스
Priority to KR1020130155557A priority Critical patent/KR20150069300A/en
Publication of KR20150069300A publication Critical patent/KR20150069300A/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
    • B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof

Abstract

This method secures the operator during installation and removal of stackable concrete blocks. The method uses a handling device 1 with means 9 to 12 for attaching and suspending a concrete block 14 which itself is used for separating or attaching the concrete block 14 (2 to 7) which are temporarily placed on the concrete block in order to ensure the safety of the building. The barrier advantageously has a secure lateral approach of the type of safety bow 8 whose safety bow is aligned with the crossbars 19 provided in the concrete blocks 14.
The present invention can be applied to laminating a ballast block on a base chassis of a tower crane.

Description

[0001] METHOD FOR INSTALLING AND REMOVING CONCRETE BLOCKS [0002]

The subject of the present invention is generally a method of installing and removing stackable concrete blocks, which method is particularly applicable to concrete ballast blocks that can be stacked on the base chassis of the crane to stabilize the crane . Another subject of the present invention is a handling device for handling and protecting concrete blocks for carrying out the method.

In a generally known manner, a crane, particularly a tower crane, is pressed down by stacking a variable number of concrete ballast blocks on the base chassis of such a crane.

A suitable handling device for handling stackable concrete ballast blocks is known, for example, from FR 2 854 393 B1, in which the ballast blocks can be stacked continuously up and down. When using such a handling device, the operator must climb onto the top (which may be at a height of a few meters) of the already formed stack to separate the sling of the handling device after placing each concrete block. During this work, the operator is not currently using any safeguards against the risk of falling unless he uses a hard harness that is difficult to handle.

It has already been proposed to provide at least one stirrup or crossbar in each concrete ballast block to make it easier for the operator to approach the top of the stack of the concrete ballast block when installing or removing the crane ballast , These stirrups or crossbars are located at the edge of the concrete ballast block. Thus, the overlapping corresponding crossbars of the stacked ballast blocks form a sort of ladder, which allows the operator to more easily access the top of the stack of ballast blocks (see EP 1 205 422 B1) .

With this arrangement, although the installation work of the crane ballast block can be made easier, there is no safety measure for the worker who reaches the top of the laminated body of the ballast block.

A wide variety of protective barrier systems are known elsewhere for workers working in high or other hazardous locations.

Thus, Japanese Patent JP 11-152944 and US 7,213, 715 B2 disclose protective barriers designed to avoid accidental detachment through "manholes ".

Other documents, such as French Patent FR 2 894 232 B1 or European Patent Application EP 2 253 580 A1, disclose a platform having guard rails and side access as platforms for working at high altitudes. These platforms have solid floors that prevent any form of intervention. Also, the lateral access of the platform is generally made up of simple gates, which do not provide security.

These known protective barrier systems are not particularly suitable for laying and laying concrete ballast blocks in order to stabilize the crane.

It is an object of the present invention to overcome the above-mentioned disadvantages, and it is an object of the present invention to provide optimum safety for workers in installing and removing stackable concrete blocks, A suitable method and a handling device.

To this end, the method of the present invention uses stackable concrete blocks, in particular handling devices or equipment for these concrete blocks, to install and remove concrete blocks provided with at least one crossbar at the edges, Includes a protective barrier which is self-closing and provided with lateral access, which is temporarily placed on the concrete block to secure the work of separating or attaching the concrete block to the handling device.

In a preferred embodiment of the present invention, the handling device comprises a protective barrier, the lateral approaching portion of which includes a safety bow and which is provided on a concrete block located at the top of the stacked concrete block When the protective barrier is placed, the safety bow is aligned with the crossbars of the stacked concrete blocks.

The idea underlying the present invention is thus to be used as a lifting beam for picking up and handling concrete ballast blocks and also as a protective barrier for workers at the top of the stack of blocks during work of separating or attaching concrete blocks Special purpose handling equipment or equipment. Also, as long as a safe lateral approach in the form of a safety bow aligned with a ladder (made by vertically aligned cross bars of stacked concrete blocks) is provided in the protective barrier, Thereby providing greater safety when approaching the top of the stack of concrete blocks.

The special purpose handling device itself used in the method of the present invention may be a lifting device mounted on a heavy truck (in particular a heavy truck used to send the ballast block to the place) or an auxiliary lifting device .

The handling device for carrying out the above-described method essentially comprises a protective barrier which is self-closing and provided with lateral access but without a floor, which protective barriers are provided on the hooks of the lifting equipment, Means for hanging, and means for attaching and suspending a concrete block to be installed or removed under the protective barrier.

In a preferred embodiment of this handling device, the lateral approaching portion of the protective barrier comprises a safety bow extending at least over the height of the protective barrier in one region of its protective barrier. Climbing up a ladder formed by stacked crossbars belonging to a stacked concrete ballast block, the operator climbs into the interior of the safety bow and there is immediate access to the space defined by the barrier, so that the barrier surrounds the operator on all sides do. Since there is no floor below the protective barrier, the operator can directly access the attachment and suspension means in order to separate the concrete block just placed on the top of the laminate.

Overall, the present invention is, therefore, an object of the present invention to provide a method and system for removing concrete ballast blocks during and after installation of a concrete ballast block, while maintaining structural simplicity and economy, And provides the operator with optimum safety, thus eliminating the need for hard-to-handle harnesses for this type of work. Also, since there is no floor at the base of the protective barrier, the handling device is prevented from being robbed for use as a gondola for carrying or lifting people, and such use is prohibited by current regulations.

In any event, the present invention will be better understood from the following description, with reference to the accompanying schematic drawings, which illustrate one embodiment of a handling device and which illustrate the use of the device according to the method of the present invention.

1 is a perspective view of a handling device alone;
Figure 2 shows the handling device of Figure 1 suspended from a crane (not shown).
Figure 3 shows placing the handling device of Figure 1 on a ballast block.
Fig. 4 shows the attachment of the ballast block to the handling device of Fig.
Figure 5 illustrates lifting up the ballast block using a handling device.
Figure 6 shows placing the ballast block on top of the stack of such blocks.
Fig. 7 shows placing the handling device itself of Fig. 1 on a ballast block that has just been placed.
Fig. 8 shows the operator approaching the handling device in which it is placed.
Figure 9 finally shows the separation of the just placed ballast block.

Referring to Figure 1, the handling or handling equipment, generally designated by the reference numeral "1 ", takes the form of a protective barrier which is self-closing and made in the form of a handrail. The protective barrier thus comprises an upstanding portion 2 connecting the lower profile portions 3 to the intermediate rail 4 and the upper rail 5. [ In the region of the profile portions 3 forming a simple rectangular fence there is no bottom at the base of the barrier, i.e. this barrier is completely open at its base.

Viewed in the above, the handling device 1 is entirely rectangular and has two longitudinal side portions 6 which are connected to one another by a straight side portion 7. On the opposite side of this straight transverse side 7 the handling device 1 comprises a lateral approaching part which comprises a safety bow 8 which spans the height of the barrier.

The upstanding portions 2 of the protective barrier in the two longitudinal side portions 6 are connected by respective horizontal transverse members 9. Two rings 10 on each side are passed around the transverse member 9 and are connected to the two hooks 12 by respective cables 11. The length of the cable 11 is such that the hook 12 is positioned slightly lower than the profile portions 3 of the protective barrier in the free state. So, in general, the handling device 1 has four hooks 12 on one and the same horizontal plane, and these hooks are arranged at four rectangular corners.

As shown in Fig. 2, the handling device 1 described above can be hung on a mobile crane (not shown) using four ropes 13, The sling is connected to the hook of the crane and the sling itself is attached to the ring 10 which is passed around the transverse member 9.

When the handling device 1 is in use (this use is shown in Fig. 3 and the following figures), the hook 12 is provided with a concrete ballast block 14 for stabilizing the tower crane, . In a known manner, such a ballast block 14 is stacked on the base chassis 15 of the tower crane in a variable number of ways. Wherein each ballast block 14 includes four cavities 17 at its top surface 16, each of which has a lifting ring attached. Each ballast block 14 is also provided with a crosspiece 19 at its edge 18. Thus, the vertically aligned crossbars belonging to the plurality of overlapping ballast blocks 14 form a ladder which makes them more accessible to the tops of the stacks of these ballast blocks 14. If the crossbar 19 in the bottom ballast block 14 is already at some height above the ground, a short ladder 20 may be provided in the base chassis 15 to provide easier access to this first crossbar.

Considering the work of installing the additional ballast block 14 at the top of the laminate already made of several similar ballast blocks 14, the use of the handling device 1 itself will now be described.

With the additional ballast block 14 ready and waiting in the horizontal position, the handling device 1, which is handled by the mobile crane, first goes to this block and places it on the top surface 16 of the block, . The lower profile portion 3 located on the same side as the safety bow 8 is advantageously bent downward to form an end stop whose end stop cooperates with the edge 18 of the ballast block 14, (1). Four cables 11 and their respective hooks 12 are then aligned with the four cavities 17 of the ballast block 14.

4, so that the operator can attach the four hooks 12 to the corresponding lifting ring of the cavity portion 17, and the length of the cable 11 can be made I give enough "loose parts" to that cable. Thus, the ballast block 14 is attached to the handling device 1 underneath.

The device 1 is then lifted using a mobile crane, which itself lifts up the ballast block 14 just attached. The cable 11 is tensioned and the ballast block 14 is suspended under the handling device 1 as shown in FIG.

The handling device 1 with the ballast block 14 moves to the position by the mobile crane and goes to the top of the stack already formed of several identical ballast blocks 14 as shown in FIG. Thus, in a state in which the handling device 1 itself is held "hanging in the air", the additional ballast block 14 is placed at the top of the laminate.

As the handling device 1 continues to descend, the handling device 1 itself is placed on the top surface 16 of the last ballast block 14 just as shown in FIG. The safety bow 8 of the handling device 1 is then aligned with the ladder consisting of vertically aligned crossbars 19 belonging to the stacked ballast blocks 14.

As shown in Fig. 8, the operator can then use this ladder to access the top of the stack of the ballast block 14, more specifically the space inside the protective barrier formed by the handling device 1 . When reaching the top of the ladder, the operator is safely held by the safety bow 8.

Finally, as shown in FIG. 9, the operator can release the last ballast block 14 lying inside the space defined by the protective barrier by loosening the hook 12.

Once the separating operation has been performed, the operator rides down the ladder formed by the aligned crossbars 19 of these ballast blocks 14 and leaves the top of the stack of the ballast block 14. The freehand handling device 1 can then be lifted up using a mobile crane so that it can go to the next ballast block 14 to be laid down, The same procedure is repeated the necessary number of times.

As can be seen, the same handling device 1 with a protective barrier can also be used to remove the ballast block 14, but when the operator is separating the ballast block 14 to be removed at the top of the stack, The device protects the operator.

Since the handling device 1 is open at its bottom and thus does not constitute a platform or gondola, it is prevented that the handling device is robbed for other uses such as means for carrying or lifting people.

Of course, the present invention is not limited to an embodiment of this handling device as exemplified above, but conversely, the present invention includes all alternative embodiments and alternative applications that follow the same principles. It is thus within the scope of the present invention, in particular, to adapt the structure or shape of the protective barrier or to adapt the handling device to conform to concrete blocks of different shapes or for other purposes.

Claims (8)

A concrete block 14 in which a stackable concrete block is provided with at least one crosspiece 19 at the edge 18 and more particularly a concrete block 14 in which the crests are stacked on the base chassis 15 of the crane, A method for installing and removing a concrete block (14) which can be applied to a concrete block (14) using a handling device (1) comprising means (9-12) for attaching and hanging a concrete block (14)
The handling device 1 comprises a protective barrier 2 to 7 which is self-closing and provided with a side access part 8 which protects the concrete block 14 from the handling device 1, Which is temporarily placed on the concrete block (14) so as to secure the work of separating or attaching the concrete block (14). The method according to claim 1,
The handling device 1 comprises protective barriers 2 to 7 whose lateral approaching part comprises a safety bow 8 and which is located at the top of the stacked concrete block 14 Wherein the safety bow is aligned with the crossbars (19) of the stacked concrete block if the protective barrier is placed on the concrete block (14). A handling device (1) for carrying out the method according to claim 1 or 2,
The handling device comprises a protective barrier (2 to 7) which is self-closing and provided with a side access part (8) but no floor, the protection barrier being provided by means of a lifting device (9, 10) for hanging on the hook of the concrete block and means (9-12) for attaching and suspending the concrete block (14) to be installed or removed under the protective barrier. The method of claim 3,
Wherein said lateral approaching portions of said protective barriers (2 to 7) comprise a safety bow (8) extending in at least one height of said protective barrier in one region of its protective barrier. 5. The method of claim 4,
Viewed in the above, the handling device is generally rectangular and has two longitudinal sides 6 connected to one another by a straight transverse side 7, and the side approaching part of the safety bow 8 is a straight Is located on the opposite side of the lateral side (7). 6. The method of claim 5,
In the two longitudinal side portions 6, the upright portions 2 of the protective barrier are connected to each other by respective horizontal side transverse members 9, and two rings 10 are connected to their respective horizontal transverse members 9, Which is passed around a hook 9 and which rings are connected by respective cables 11 to the two hooks 12 provided for attaching and hanging the concrete block 14, Wherein the sling (13) itself is attached to the ring (10). The method according to claim 5 or 6,
The protective barrier includes lower profile portions 3 forming a rectangular fence and the lower profile portion 3 located on the same side as the safety bow 8 is bent downward to form an end stop , Which end stop is used to position the handling device (1) in cooperation with the edge (18) of the concrete block (14). 8. The method according to claim 6 or 7,
Wherein the length of the cable (11) is such that the hook (12) is positioned slightly below the lower profile portions (3) of the protective barrier when free.
KR1020130155557A 2013-12-13 2013-12-13 Method for installing and removing concrete blocks KR20150069300A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020130155557A KR20150069300A (en) 2013-12-13 2013-12-13 Method for installing and removing concrete blocks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020130155557A KR20150069300A (en) 2013-12-13 2013-12-13 Method for installing and removing concrete blocks

Publications (1)

Publication Number Publication Date
KR20150069300A true KR20150069300A (en) 2015-06-23

Family

ID=53516461

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020130155557A KR20150069300A (en) 2013-12-13 2013-12-13 Method for installing and removing concrete blocks

Country Status (1)

Country Link
KR (1) KR20150069300A (en)

Similar Documents

Publication Publication Date Title
CN210561776U (en) Bridge anticollision barrier joins externally platform
WO2011049815A1 (en) Self-erecting suspension platform system
CN102691474A (en) Maintenance platform
KR101374128B1 (en) A folding safty gondola for distribution
JP2015113207A (en) Concrete block mounting method and removing method, and operation device used for the same
CN103967263A (en) Novel hydraulic automatic climbing discharging platform
JP6723119B2 (en) Fall prevention equipment for overhead cranes
KR20150069300A (en) Method for installing and removing concrete blocks
CN108675116B (en) Construction method of PC (polycarbonate) component
JP5480405B1 (en) Work at height
KR200476309Y1 (en) A carrier for a forklift or a crane
CN105668436A (en) Protective platform for bottom of inside-climbing tower crane for super high-rise construction
CN213923658U (en) Conveying device for lifting materials in super high-rise building floor
CN203201149U (en) Electric lifting discharging platform
CN115559541A (en) Hoisting hole receiving and hole protecting structure and method and transportation system thereof
CN212154622U (en) Outer wall plate mounting ladder stand for steel structure factory building
CN210655915U (en) Connecting device for climbing frame and tower crane
CN104709814A (en) Method for mounting and dismounting of concrete blocks
US20150166308A1 (en) Method for installing and removing concrete blocks
CN214217233U (en) Electric flat car hoisting platform
AU2013267013A1 (en) Method for installing and removing concrete blocks
CN106639288B (en) Method for installing and using vertical transport platform for stone in outer wall scaffold
CN217100414U (en) Hanging basket for side longitudinal wall of ship side of box
KR100508125B1 (en) A safety way equipment for a tower crane and installing methods thereof
JP2019027145A (en) Installation method for falling object protective device

Legal Events

Date Code Title Description
WITN Withdrawal due to no request for examination