WO2004050530A1 - Mechanism for lifting a prefabricated sandwich unit - Google Patents
Mechanism for lifting a prefabricated sandwich unit Download PDFInfo
- Publication number
- WO2004050530A1 WO2004050530A1 PCT/FI2003/000822 FI0300822W WO2004050530A1 WO 2004050530 A1 WO2004050530 A1 WO 2004050530A1 FI 0300822 W FI0300822 W FI 0300822W WO 2004050530 A1 WO2004050530 A1 WO 2004050530A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- unit
- lifting
- frame member
- bead
- surface layers
- Prior art date
Links
- 239000002344 surface layer Substances 0.000 claims abstract description 27
- 239000011324 bead Substances 0.000 claims abstract description 25
- 230000008878 coupling Effects 0.000 claims abstract description 20
- 238000010168 coupling process Methods 0.000 claims abstract description 20
- 238000005859 coupling reaction Methods 0.000 claims abstract description 20
- 239000011810 insulating material Substances 0.000 claims abstract description 4
- 239000007767 bonding agent Substances 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 5
- 210000000078 claw Anatomy 0.000 claims description 4
- 210000002105 tongue Anatomy 0.000 description 8
- 239000011490 mineral wool Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/142—Means in or on the elements for connecting same to handling apparatus
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/167—Tools or apparatus specially adapted for working-up plates, panels or slab shaped building elements
Definitions
- the present invention relates to a mechanism for lifting a prefabricated sandwich unit, said unit comprising a core element of a heat insulating material and surface layers present on its two opposite main surfaces, said surface layers being laminated on the core element by applying the same with a bonding agent to the core element's opposite main surfaces and said surface layers including bead sections at least on one side of the unit, the lifting mechanism being adapted to be placed for a lifting operation on said side of the unit provided with the bead sections.
- the prefabricated unit to be lifted by means of a lifting mechanism of the invention may contain, for example, a core element of mineral wool fiber, having its two opposite surfaces provided with surface layers of e.g. plastic- coated sheet metal.
- the handling of such prefabricated units requires delicate lifting to avoid damage, and one solution for this has been described in the Applicant's prior FI patent 89473. It is an object of the present invention to provide an improved lifting mechanism, which allows a wide thickness fluctuation range for prefabricated units, for example 80-240 mm, and which is relatively simple in design and easy to operate.
- a lifting mechanism of the invention is characterized in that the lifting mechanism comprises a frame member, having one longitudinal edge thereof formed with a first coupling profile for engagement with the bead section of the unit's one surface layer, a gripping member adapted to be laterally movable with respect to the frame member, having one edge thereof formed with a second coupling profile for engagement with the bead section of the unit's other surface layer, and elements for locking the gripping member relative to the frame member while said first and second coupling profiles are in position in the bead sections (5a or 5b) of the unit's opposite surface layers.
- Fig. 1 shows schematically one prefabricated sandwich unit hoistable by means of a lifting mechanism of the invention
- Fig. 2 shows schematically a process of mounting a mechanism of the invention on one flank of a prefabricated unit to be lifted
- Fig. 3 shows in a perspective view one embodiment for a lifting mechanism of the invention
- Figs. 4A, 4B show schematically some optional tongue-and-groove designs for a hoistable prefabricated unit.
- Fig. 1 shows schematically a core member 2 of mineral wool fiber, having surface layers 3 and 4 of sheet metal pasted to both of its main surfaces.
- Each surface layer has its upper part formed with a bead section 5a, constituting a tongue member 7 for a tongue-and-groove joint with a space 6a formed thereinside.
- each surface layer 3 and 4 has its lower part formed with a bead section 5b, constituting a groove member 8 for a tongue-and-groove joint, the groove member 8 and the surface layer's inner face defining a space 6b therebetween.
- the resulting prefabricated sandwich unit is intended for use as wall elements set on top of or adjacent to each other.
- the core member 2 may consist of some other heat insulating material, such as e.g. polyurethane, the bottom surface of the bead section's 5a, 5b innermost edge and the core member's top surface preferably defining therebetween a clearance, through which the lifting mechanism has its gripping member insertable under the bead for lifting the unit with the lifting mechanism.
- This clearance is necessary as polyurethane is harder than mineral wool, whereby the gripping member does not penetrate just as readily inside the core member.
- Fig. 2 shows schematically a process of positioning a lifting mechanism 10 of the invention under the tongues 7 constituted by the bead sections present on the unit's top side by means of coupling profiles 12, 13 and respectively 16, 17.
- reference numeral 27 is a downward- directed claw member of the coupling profiles, which, in the process of placing the lifting mechanism in position, penetrates inside the core member and, thus, at the same time, eliminates a relative lateral movement between the lifting mechanism and the unit being lifted.
- Fig. 3 illustrates in more detail one embodiment for a lifting mechanism of the invention.
- the lifting mechanism 10 comprises a frame member, which in the present embodiment comprises a fork-like element, whose legs are at one end thereof connected to each other by an edge component 21 constituting the coupling profile 12, 13.
- the coupling profile comprises a gutter element 13 and an upright wall 12 present at its forward edge.
- the upright wall 12 bears against the bottom of the space 6a inside the tongue 7, the lift being essentially based upon the upright wall's 12 top edge.
- a gripping member 15 designed as a slide element and having a coupling profile 16, 17 at one edge 22 thereof.
- the gripping member 15 is provided at its end closer to the coupling profile with laterally protruding slide pins 24 accommodated in a hollow inner space 23 of the frame member's legs 11, allowing a sliding motion of the gripping member 15 relative to the frame member for adapting the lifting mechanism 10 for prefabricated units of various thicknesses.
- each leg of the frame member has a locking element 19 connected thereto by way of a joint pin 25, which in the present embodiment is in the shape of L
- the locking element penetrates partially inside the leg member 11, such that a shorter arm 20 passes through the hollow leg of the frame member 11, extending into a hollowed central section 26 of the gripping member 15 for locking the gripping member 15 relative to the frame member 11 as the coupling elements are located in the bead sections 5a of the opposite surface layers.
- the frame member is preferably so dimensioned that the outer end of the frame member's legs 11 and the outer end of the gripping member 15 are located above the respective bead section 5a as the lifting mechanism is in a secured condition, whereby the unit to be lifted is more securely locked in its position.
- the frame member is further provided with lifting eyes 14a, 14b and the gripping member 15 has its top surface provided with lifting eyes 18a, 18b, respectively.
- the lifting eyes 14a, 14b and 18a, 18b are provided near the coupling profile 12, 13 and respectively 16, 17, whereby, upon inserting lifting ropes or similar lifting means in the lifting eyes and upon lifting a unit to an upright position, the unit being lifted settles in a balanced position regardless of the unit's thickness as the lifting eyes are located close to the surface layer.
- the lifting ropes or similar lifting means are preferably adapted to pass from one lifting eye 14a of the frame member to the diagonally opposite lifting eye 18b of the gripping member 15 (and respectively from eye 14b to eye 18a), such that, in the process of lifting a horizontally positioned prefabricated unit to a vertical position, each surface layer 3, 4 is subjected to a substantially equal load, thus eliminating a risk of ripping off the surface layers.
- the foregoing embodiment deals with lifting a unit in its horizontal position from under the tongues 7 present on the top side, and terms associated with this position have been used in the description and claims, such as e.g. the upright wall 12 and the downward-directed claw member 27, but such terms are only used in an effort to simplify the presentation with no intention to limit the discussed elements to this particular position.
- the lifting mechanism in such a way that a unit to be lifted is in a vertical position and the lifting mechanism is preferably placed on each vertical side, whereby the upright wall 12 and the claw members 27 are in a horizontal position and the lifting mechanism is located under both the tongues 7 and the grooves 8 in the spaces 6a and 6b, respectively.
- the lifting mechanism in the case of a so-called circum-matched prefabricated unit, in which e.g. one horizontal side and one vertical side are provided with a tongue and the other horizontal side and the other vertical side are respectively provided with a groove.
- the inventive lifting mechanism is useful also in the case of truncated units with bead sections (5a or 5b) on one side only.
- the lifting mechanism may have its coupling profile bearing against some other part of the bead section for lifting a unit.
- the tongues 7 and the grooves 8 may have profiles which are even considerably different from those depicted in figs. 1 and 2.
- Figs. 4A and 4B illustrate by way of example some optional profile shapes for the tongue 7.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- De-Stacking Of Articles (AREA)
- Valve Device For Special Equipments (AREA)
- Magnetic Heads (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT03812187T ATE456537T1 (en) | 2002-12-03 | 2003-11-05 | MECHANISM FOR LIFTING A PREFABRICATED SANDWICH UNIT |
EP03812187A EP1569863B1 (en) | 2002-12-03 | 2003-11-05 | Mechanism for lifting a prefabricated sandwich unit |
DK03812187.7T DK1569863T3 (en) | 2002-12-03 | 2003-11-05 | Mechanism for lifting a prefabricated sandwich unit |
AU2003276293A AU2003276293A1 (en) | 2002-12-03 | 2003-11-05 | Mechanism for lifting a prefabricated sandwich unit |
DE60331165T DE60331165D1 (en) | 2002-12-03 | 2003-11-05 | MECHANISM FOR LIFTING A PRE-MADE SANDWICH UNIT |
NO20051607A NO329291B1 (en) | 2002-12-03 | 2005-03-31 | Mechanism to lift a prefabricated sandwich unit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20025056A FI116462B (en) | 2002-12-03 | 2002-12-03 | Hoist |
FI20025056 | 2002-12-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004050530A1 true WO2004050530A1 (en) | 2004-06-17 |
Family
ID=8565224
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FI2003/000822 WO2004050530A1 (en) | 2002-12-03 | 2003-11-05 | Mechanism for lifting a prefabricated sandwich unit |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP1569863B1 (en) |
AT (1) | ATE456537T1 (en) |
AU (1) | AU2003276293A1 (en) |
DE (1) | DE60331165D1 (en) |
DK (1) | DK1569863T3 (en) |
FI (1) | FI116462B (en) |
NO (1) | NO329291B1 (en) |
PL (1) | PL206341B1 (en) |
WO (1) | WO2004050530A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993020004A1 (en) * | 1992-04-06 | 1993-10-14 | Paroc Oy Ab | A lifting device and method |
WO2000066478A1 (en) * | 1999-04-29 | 2000-11-09 | Rannila Steel Oy | Gripping device for lifting building elements |
WO2001076999A1 (en) * | 2000-04-07 | 2001-10-18 | Trimo D.D. | Transport of light building panels |
-
2002
- 2002-12-03 FI FI20025056A patent/FI116462B/en not_active IP Right Cessation
-
2003
- 2003-11-05 AU AU2003276293A patent/AU2003276293A1/en not_active Abandoned
- 2003-11-05 DE DE60331165T patent/DE60331165D1/en not_active Expired - Lifetime
- 2003-11-05 DK DK03812187.7T patent/DK1569863T3/en active
- 2003-11-05 EP EP03812187A patent/EP1569863B1/en not_active Expired - Lifetime
- 2003-11-05 AT AT03812187T patent/ATE456537T1/en not_active IP Right Cessation
- 2003-11-05 WO PCT/FI2003/000822 patent/WO2004050530A1/en not_active Application Discontinuation
- 2003-11-05 PL PL375749A patent/PL206341B1/en unknown
-
2005
- 2005-03-31 NO NO20051607A patent/NO329291B1/en not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993020004A1 (en) * | 1992-04-06 | 1993-10-14 | Paroc Oy Ab | A lifting device and method |
WO2000066478A1 (en) * | 1999-04-29 | 2000-11-09 | Rannila Steel Oy | Gripping device for lifting building elements |
WO2001076999A1 (en) * | 2000-04-07 | 2001-10-18 | Trimo D.D. | Transport of light building panels |
Also Published As
Publication number | Publication date |
---|---|
AU2003276293A1 (en) | 2004-06-23 |
PL206341B1 (en) | 2010-07-30 |
DE60331165D1 (en) | 2010-03-18 |
NO20051607L (en) | 2005-03-31 |
NO329291B1 (en) | 2010-09-27 |
ATE456537T1 (en) | 2010-02-15 |
EP1569863A1 (en) | 2005-09-07 |
FI116462B (en) | 2005-11-30 |
EP1569863B1 (en) | 2010-01-27 |
FI20025056A0 (en) | 2002-12-03 |
FI20025056A7 (en) | 2004-06-04 |
PL375749A1 (en) | 2005-12-12 |
DK1569863T3 (en) | 2010-05-17 |
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