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WO2002030804A1 - Safety device for grasping device for lifting some masonry elements - Google Patents

Safety device for grasping device for lifting some masonry elements Download PDF

Info

Publication number
WO2002030804A1
WO2002030804A1 PCT/NL2001/000751 NL0100751W WO0230804A1 WO 2002030804 A1 WO2002030804 A1 WO 2002030804A1 NL 0100751 W NL0100751 W NL 0100751W WO 0230804 A1 WO0230804 A1 WO 0230804A1
Authority
WO
WIPO (PCT)
Prior art keywords
grab
arms
safety device
load
grasping
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/NL2001/000751
Other languages
French (fr)
Inventor
Albertus Jacobus Gertrude Maria Van Dieten
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DK01981168.6T priority Critical patent/DK1324942T3/en
Priority to DE60141152T priority patent/DE60141152D1/en
Priority to AU2002212827A priority patent/AU2002212827A1/en
Priority to AT01981168T priority patent/ATE455725T1/en
Priority to EP01981168A priority patent/EP1324942B1/en
Publication of WO2002030804A1 publication Critical patent/WO2002030804A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
    • B66C1/44—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces
    • B66C1/442—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces actuated by lifting force
    • 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
    • B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
    • B66C1/28—Duplicate, e.g. pivoted, members engaging the loads from two sides
    • B66C1/30—Duplicate, e.g. pivoted, members engaging the loads from two sides and also arranged to grip the sides of the loads
    • B66C1/32—Duplicate, e.g. pivoted, members engaging the loads from two sides and also arranged to grip the sides of the loads of piled or stacked articles

Definitions

  • the invention concerns a safety device on grasping devices for masonry elements.
  • the safety device prevents falling of blocks or bricks out of the grasping device. It is usual to load and unload packages of stones, blocks sand-lime bricks and similar with the help of grasping devices. Also horizontal transporting of packages with the help of hydraulic cranes is done with these grasping devices.
  • Sand-lime bricks are characterized by grit and dust through that makes the friction amongst themselves low.
  • the invention concerns an appliance where after grasping and hoisting of the load almost directly two arms direct a profile underneath the load. When the load is put down the arms gives way at touching on the floor and the grasping device can open. There is no need for an action to remove the safety device.
  • Fig. 1 shows a grab without a safety device.
  • Fig. 2 shows the side-view of a grab with safety device with the load on short distance of the ground.
  • Fig. 3 shows a grab with the load on the ground.
  • Fig. 4 shows partly the top view of a grab with safety device in open position.
  • Fig. 1 shows a grab of the type that is used to load or unload packages bricks or blocks.
  • the grab uses the movement of a scissors to pinch the package between beams which are covered with rubber when hoisting.
  • Fig. 2 is (2) the grab.
  • On joints (2) are two pivoting arms (3, 4) connected. Arms have about the form of a "L” and reach over load (7) and down.
  • To arms (3, 4) are profiles (5, 6) secured, for instance by welding. Profiles (5, 6) are the same length as beams (9).
  • To the end of arms (3, 4) are rollers (8) mounted which extend out of profiles (5, 6).
  • To the ends of beams (9) are fixed plates (10) to prevent sideways falling out of blocks. Supporting plates (11) curtail the movement of arms (3, 4) so that with picking up of the load (7) profiles (5, 6) will not touch onto the load.
  • the grab will be held open by a catch (not drawn) after opening at putting down the load (7) .
  • the arms (3, 4) are held open by supporting plates (11) .
  • the grab with arms (3, 4) is placed across the load rollers (8) touch the ground and with moving further downwards of the grab the arms (3, 4) will be spread.
  • the grab weighs upon the load (7) the catch will discharge the grab and at hoisting on eye (12) the grab will close and take up the load (7).
  • On taking up rollers (8) lose contact with the ground and by their weight arms (3, 4) will move to each other and profiles (5, 6) will be under the load.
  • profiles (5, 6). Plates (10) prevent outer brick (13) to fall out sideways.
  • rollers (8) will have the first contact with the ground and arms (3, 4) spread themselves and with further descending the grab will open and the catch will keep the grab open and a new load (7) can be picked up.
  • the invention can also executed as a do it yourself kit and be mounted on existing grabs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

The invention concerns a safety device on grasping devices for masonry elements (7). The safety device prevents falling of blocks or bricks out of the grasping device. The invention concerns an appliance (1) where after grasping and hoisting of the load almost directly two arms (3, 4) direct a profile (5, 6) under the load. On putting down of the load the arms gives way at touching on the floor and the grasping device (1) can open. The arms are provided with rollers (8) which spread the arms on putting down and close at hoisting. The grasping device is foreseen with plates that prevents elements falling sideways out of the grasping device and supporting plates (11) which keep the arms spreaded when the grasping device is opened. The invention can also be executed as do it yourself kit.

Description

SAFETY DEVICE FOR GRASPING DEVICE FOR LIFTING SOME MASONRY ELEMENTS
The invention concerns a safety device on grasping devices for masonry elements. The safety device prevents falling of blocks or bricks out of the grasping device. It is usual to load and unload packages of stones, blocks sand-lime bricks and similar with the help of grasping devices. Also horizontal transporting of packages with the help of hydraulic cranes is done with these grasping devices.
In many cases are sand-lime bricks used in separation walls and similar and the sand-lime bricks have to be brought to high levels. Sand-lime bricks are characterized by grit and dust through that makes the friction amongst themselves low.
This makes the chance for sliding out of an element large. It is than necessary to have a safety device that prevents falling out of a loose element out of the package. The problem is that the packages have to be taken from the floor with the grasping device. There is no possibility to fit a safety device underneath the package. In praxis the package is hoisted a iittle and a steel net is pulled under the load and fastened. Before putting down the net has to be removed an the load can be placed.
The invention concerns an appliance where after grasping and hoisting of the load almost directly two arms direct a profile underneath the load. When the load is put down the arms gives way at touching on the floor and the grasping device can open. There is no need for an action to remove the safety device.
The invention is described with help of the drawing. Fig. 1 shows a grab without a safety device. Fig. 2 shows the side-view of a grab with safety device with the load on short distance of the ground.
Fig. 3 shows a grab with the load on the ground. Fig. 4 shows partly the top view of a grab with safety device in open position.
Fig. 1 shows a grab of the type that is used to load or unload packages bricks or blocks. The grab uses the movement of a scissors to pinch the package between beams which are covered with rubber when hoisting.
In Fig. 2 is (2) the grab. On joints (2) are two pivoting arms (3, 4) connected. Arms have about the form of a "L" and reach over load (7) and down. To arms (3, 4) are profiles (5, 6) secured, for instance by welding. Profiles (5, 6) are the same length as beams (9). To the end of arms (3, 4) are rollers (8) mounted which extend out of profiles (5, 6). To the ends of beams (9) are fixed plates (10) to prevent sideways falling out of blocks. Supporting plates (11) curtail the movement of arms (3, 4) so that with picking up of the load (7) profiles (5, 6) will not touch onto the load.
The grab will be held open by a catch (not drawn) after opening at putting down the load (7) .
The arms (3, 4) are held open by supporting plates (11) . When the grab with arms (3, 4) is placed across the load rollers (8) touch the ground and with moving further downwards of the grab the arms (3, 4) will be spread. When the grab weighs upon the load (7) the catch will discharge the grab and at hoisting on eye (12) the grab will close and take up the load (7). On taking up rollers (8) lose contact with the ground and by their weight arms (3, 4) will move to each other and profiles (5, 6) will be under the load. When now a brick gets loose it will be cached by profiles (5, 6). Plates (10) prevent outer brick (13) to fall out sideways. At putting down of the load (7) rollers (8) will have the first contact with the ground and arms (3, 4) spread themselves and with further descending the grab will open and the catch will keep the grab open and a new load (7) can be picked up.
There is a possibility that adapting joints (2) is not desirable. In that case a separate joint can be placed near joint (2). Because of clearance it is desirable to make the horizontal part (14) of arms (3, 4) as long as possible.
The invention can also executed as a do it yourself kit and be mounted on existing grabs.
There are different handles possible for directing the grab across the load to be mounted to arms (3, 4), these are not mentioned.

Claims

Claims,
1. Safety device for grab which is meant to hoist packages masonry elements preventing falling out of elements characterised by that grab (1) is foreseen with arms (3, 4) with profiles (5, 6) which are pivotal connected to joints (2) of the grab (1) and turn about until profiles (5, 6) find themselves underneath the load where rollers (8) at going down of grab (1) at ground contact spread arms (3, 4).
2. Safety device for grab as in claim 1 characterised by that with opened grab (1) arms (3, 4) with profiles (5, 6) also are opened by supporting plates (11).
3. Safety device for grab as in claim 1 and 2 characterised by that grab (1) is foreseen with plates (10) to prevent sideways falling out of bricks (13).
4. Safety device for grab as in claim 1 , 2 and 3 characterised by that arms (3, 4) connected pivotal to or near joint (2) of the scissor construction of grab (1) that is at the other side of profile (5, 6).
5. Safety device for grab as in claim 1 , 2, 3 and 4 characterised by that arms (3, 4) with profiles (5, 6) with elongated pivots (2) or welded on pivots with supporting plates (11) onto existing grab (1) are fitted .
PCT/NL2001/000751 2000-10-13 2001-10-12 Safety device for grasping device for lifting some masonry elements Ceased WO2002030804A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DK01981168.6T DK1324942T3 (en) 2000-10-13 2001-10-12 Safety device for a gripper for lifting masonry elements
DE60141152T DE60141152D1 (en) 2000-10-13 2001-10-12 SAFETY DEVICE FOR A GRIPPING APPARATUS FOR LIFTING OUTSTANDING TOWER ELEMENTS
AU2002212827A AU2002212827A1 (en) 2000-10-13 2001-10-12 Safety device for grasping device for lifting some masonry elements
AT01981168T ATE455725T1 (en) 2000-10-13 2001-10-12 SAFETY DEVICE FOR A GRIPPER FOR LIFTING SEVERAL MASONRY ELEMENTS
EP01981168A EP1324942B1 (en) 2000-10-13 2001-10-12 Safety device for a grasping device for lifting some masonry elements

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NL1016407 2000-10-13
NL1016407 2000-10-13
NL1017575 2001-03-13
NL1017575A NL1017575C2 (en) 2000-10-13 2001-03-13 Protection for lifting clamp for building elements.

Publications (1)

Publication Number Publication Date
WO2002030804A1 true WO2002030804A1 (en) 2002-04-18

Family

ID=26643252

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2001/000751 Ceased WO2002030804A1 (en) 2000-10-13 2001-10-12 Safety device for grasping device for lifting some masonry elements

Country Status (9)

Country Link
EP (1) EP1324942B1 (en)
AT (1) ATE455725T1 (en)
AU (1) AU2002212827A1 (en)
DE (1) DE60141152D1 (en)
DK (1) DK1324942T3 (en)
ES (1) ES2340255T3 (en)
NL (1) NL1017575C2 (en)
PT (1) PT1324942E (en)
WO (1) WO2002030804A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100553894C (en) * 2007-02-09 2009-10-28 福建海源自动化机械股份有限公司 The clamp mechanism of stacking machine
US20150197013A1 (en) * 2012-07-13 2015-07-16 Areva Nc Device for handling cases containing objects
CN109867203A (en) * 2019-03-14 2019-06-11 益阳康益机械发展有限公司 Variable diameters lift reversal hanger
JP2020179963A (en) * 2019-04-25 2020-11-05 株式会社乗富鉄工所 Lifting jig
CN112338946A (en) * 2019-12-03 2021-02-09 汪鸣飞 Friction roller type grabbing and loading device and method
DE102021108566A1 (en) 2021-04-07 2022-07-21 Schaeffler Technologies AG & Co. KG handling device

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105712184A (en) * 2016-04-17 2016-06-29 昆山克鲁克机电设备有限公司 Crane steel rail hanging tongs
CN105712188A (en) * 2016-04-27 2016-06-29 山东钢铁股份有限公司 Lifting appliance
CN105712189A (en) * 2016-04-28 2016-06-29 上海宝田新型建材有限公司 Hoisting fixture for cleaning operation for large bearing
CN106672792B (en) * 2017-01-07 2017-11-24 青岛蓝天创先科技服务有限公司 A kind of quick handling apparatus of safe air-entrained concrete building block
CN108839854A (en) * 2018-07-23 2018-11-20 荥经县旭光电子有限公司 A kind of automation Waste Acid From Hua Cheng Foil boxing apparatus
NL2031095B1 (en) 2022-02-28 2023-09-07 Albertus Jacobus Gertrude Maria Van Dieten Ashley Hoisting device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB275055A (en) * 1926-11-15 1927-08-04 Franz Gerdes Improvements in and relating to automatic crane grabs
GB1241818A (en) * 1967-12-28 1971-08-04 Delattre Levivier S I D L Soc A safety device for a hoisting grab
GB1406121A (en) * 1972-01-14 1975-09-17 Bofors Ab Method of and transporter for carrying goods
DE7725334U1 (en) * 1977-08-16 1978-03-02 Abitra Maschinenfabrik Gmbh & Co Kg, 5443 Kaisersesch PACKAGING GRIPPERS
US4093298A (en) * 1977-01-17 1978-06-06 The Raymond Lee Organization, Inc. Compressor tongs
EP0425167A1 (en) * 1989-10-27 1991-05-02 Michael Squires Load handling apparatus
US5863086A (en) * 1994-11-21 1999-01-26 Mcneilus Truck And Manufacturing, Inc. Container holding and lifting device
JPH11180672A (en) * 1997-12-19 1999-07-06 Nkk Corp Loading suspension device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB275055A (en) * 1926-11-15 1927-08-04 Franz Gerdes Improvements in and relating to automatic crane grabs
GB1241818A (en) * 1967-12-28 1971-08-04 Delattre Levivier S I D L Soc A safety device for a hoisting grab
GB1406121A (en) * 1972-01-14 1975-09-17 Bofors Ab Method of and transporter for carrying goods
US4093298A (en) * 1977-01-17 1978-06-06 The Raymond Lee Organization, Inc. Compressor tongs
DE7725334U1 (en) * 1977-08-16 1978-03-02 Abitra Maschinenfabrik Gmbh & Co Kg, 5443 Kaisersesch PACKAGING GRIPPERS
EP0425167A1 (en) * 1989-10-27 1991-05-02 Michael Squires Load handling apparatus
US5863086A (en) * 1994-11-21 1999-01-26 Mcneilus Truck And Manufacturing, Inc. Container holding and lifting device
JPH11180672A (en) * 1997-12-19 1999-07-06 Nkk Corp Loading suspension device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 12 29 October 1999 (1999-10-29) *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100553894C (en) * 2007-02-09 2009-10-28 福建海源自动化机械股份有限公司 The clamp mechanism of stacking machine
US20150197013A1 (en) * 2012-07-13 2015-07-16 Areva Nc Device for handling cases containing objects
US9649769B2 (en) * 2012-07-13 2017-05-16 Areva Nc Device for handling cases containing objects
CN109867203A (en) * 2019-03-14 2019-06-11 益阳康益机械发展有限公司 Variable diameters lift reversal hanger
JP2020179963A (en) * 2019-04-25 2020-11-05 株式会社乗富鉄工所 Lifting jig
CN112338946A (en) * 2019-12-03 2021-02-09 汪鸣飞 Friction roller type grabbing and loading device and method
CN112338946B (en) * 2019-12-03 2023-10-31 汪鸣飞 Friction roller type grabbing device and method
DE102021108566A1 (en) 2021-04-07 2022-07-21 Schaeffler Technologies AG & Co. KG handling device

Also Published As

Publication number Publication date
NL1017575C2 (en) 2002-04-16
PT1324942E (en) 2010-04-21
ATE455725T1 (en) 2010-02-15
DE60141152D1 (en) 2010-03-11
EP1324942A1 (en) 2003-07-09
AU2002212827A1 (en) 2002-04-22
ES2340255T3 (en) 2010-06-01
EP1324942B1 (en) 2010-01-20
DK1324942T3 (en) 2010-05-17

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