[go: up one dir, main page]

WO1990009336A1 - Sensing arrangement in connection with spreaders - Google Patents

Sensing arrangement in connection with spreaders Download PDF

Info

Publication number
WO1990009336A1
WO1990009336A1 PCT/SE1990/000108 SE9000108W WO9009336A1 WO 1990009336 A1 WO1990009336 A1 WO 1990009336A1 SE 9000108 W SE9000108 W SE 9000108W WO 9009336 A1 WO9009336 A1 WO 9009336A1
Authority
WO
WIPO (PCT)
Prior art keywords
rig
container
sensors
sensing
sensing arrangement
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/SE1990/000108
Other languages
French (fr)
Inventor
Bert-Åke ELIASSON
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.)
Bromma Conquip AB
Original Assignee
Bromma Conquip AB
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 Bromma Conquip AB filed Critical Bromma Conquip AB
Publication of WO1990009336A1 publication Critical patent/WO1990009336A1/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
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B66C13/46—Position indicators for suspended loads or for crane elements
    • 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
    • B66C1/663—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 for containers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/88—Lidar systems specially adapted for specific applications

Definitions

  • the present invention relates to apparatus for hoisting contai ⁇ ners, and more specifically to a sensing arrangement enabling location of the hoisting rig used in such apparatus to its correct position in relation to the container which is to be hoisted.
  • Container handling has become more and more usual, and for this handling to proceeed rationally, loading and unloading and similar movements of containers must take place rapidly and safety.
  • the crane driver or the like cannot see how the rig is positioned in relation to the container it is to hoist and in certain cases when the wind acts on the rig to move it out of position. It is therefore desirable to have some form of sensor, the signals from which can be used for automatically locating the rig above the container to be lifted, without the driver needing to affect this location.
  • the moving speed of the rig is relatively high, and there are special sensing means, e.g. dependent weights, arranged so that when the rig is lowered towards a container so that the, weights touch it the suspension of the weights in these sensors will be affected, and the suspension can include switching means causing the last metres in the lowering movement of the rig to be braked to a suitably low speed.
  • Mechanical guide means in the form of lowerable rails have been used many times for subsequently guiding the rig into a position in relation to the container which is to be lifted, but these are relatively limited, since they cannot project out particularly far outside the exterior periphery of the rig.
  • the present invention has the object of solving the above- mentioned problem. This object is achieved by a sensor arrange ⁇ ment of the kind disclosed in the claims, in which the dis ⁇ tinguishing features of the invention are disclosed.
  • FIGURE 1 is a schematic perspective view illustrating a hoisting rig as it is lowered and guided over a container
  • Fig. 1 there is illustrated a lifting rig 1, which via a cable arrangement is suspended in an unillustrated crane or the like, there being an electric cable 3 connecting the rig 1 to a control unit.
  • the control unit can be operated both manually and automatically by the crane driver for locating the rig in relation to the container which is to be lifted.
  • the container 4 is quite conventional, and has a corner box 5 in each corner, with which turning lugs 6 on the rig 1 shall coact for locking the rig to the container so that the latter can be lifted.
  • a pair of sensors la, b; lc, d is placed at each diagonally opposing corner of the rig 1, one sensor on the short side and the other on the long side of the rig. These sensors 7 a-d sense when the rig is immediately above the container, if the rig 1 is properly oriented, i.e. located, in relation to the container 4.
  • FIG. 2a A position is illustrated in Figure 2a, where the rig 1 is wrongly placed diagonally in relation to the container 4, which is to be lifted. This is registered by the sensor 7c on one short side and the sensor 7b on the long side at the opposing corner sensing the container 4 under the rig 1, while the other two sensors 7a and 7d do not sense the container.
  • the control unit can then automatically, or by assistance from the crane driver, guide the rig 1 to the right position by moving it in the direction of the arrows 8 and 9. As soon as the sensors 7a and 7d also sense the container under the rig, the locating movement ceases and the rig can then be lowered into the position in which the lug 6 can be locked in the corner boxes 5 without any problem.
  • FIG. 2d A position is illustrated in Figure 2d where the rig 1 is wrongly placed in the transverse direction of the container 4, which is apparent by only one sensor 7c not sensing any container.
  • the rig is moved in the direction of the arrow 10 for location.
  • the sensors may comprise any kind of suitable touchless sensor, which has a sensing distance up to one or some few metres. Accordingly, they may comprise such which are based on superso- nics, high frequency light, acoustics, radar etc.
  • the rig 1 in response to how the sensors are actuated, the rig 1 can be moved, rectilinearly as well as when it is swinging, to its located position in relation to the container 4 under it. This locating movement suitably takes place as the rig 1 is lowered, so that it does not need to be stopped for locating and then lowered in the right position on to the container.
  • the rig can be provided with more sensors than what has been described above, and the placing of these can also vary depending on the type of hoisting operation.
  • the sensors send signals to the hoisting machinery via a control unit.
  • the actual position of the rig is suitably arranged automatically with the aid of the control unit so that the crane driver does not need to watch over the location of the rig 1.
  • the signals can be caused to form a display in the driver's cabin, and with the aid of the display the driver then guides the rig 1 into the correct position in relation to the container which is to be lifted.
  • the sensors 7a-d have been shown situated outside the rig 1 itself, but this is only a possible situation. In practice they are suitably placed on the inside of the rig beams, to protect them from the effect of blows, weather and the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Automation & Control Theory (AREA)
  • Control And Safety Of Cranes (AREA)

Abstract

The present invention refers in short to a sensing arrangement for hoisting rigs, the rig having a rectangular configuration with a rigid or adjustable length. There is at least one sensor on each side of the rig, for sensing in relation to the rig the position of a container to be lifted this sensor sending signals to a control unit, in response to which the unit causes adjustment in the position of the rig such that when it is lowered towards the container and into contact with it, the lugs at the corner of the rig thrust directly into connection means on the container.

Description

SENSING ARRANGEMENT IN CONNECTION WITH SPREADERS
The present invention relates to apparatus for hoisting contai¬ ners, and more specifically to a sensing arrangement enabling location of the hoisting rig used in such apparatus to its correct position in relation to the container which is to be hoisted.
Container handling has become more and more usual, and for this handling to proceeed rationally, loading and unloading and similar movements of containers must take place rapidly and safety. In many cases, the crane driver or the like cannot see how the rig is positioned in relation to the container it is to hoist and in certain cases when the wind acts on the rig to move it out of position. It is therefore desirable to have some form of sensor, the signals from which can be used for automatically locating the rig above the container to be lifted, without the driver needing to affect this location.
The moving speed of the rig is relatively high, and there are special sensing means, e.g. dependent weights, arranged so that when the rig is lowered towards a container so that the, weights touch it the suspension of the weights in these sensors will be affected, and the suspension can include switching means causing the last metres in the lowering movement of the rig to be braked to a suitably low speed. Mechanical guide means in the form of lowerable rails have been used many times for subsequently guiding the rig into a position in relation to the container which is to be lifted, but these are relatively limited, since they cannot project out particularly far outside the exterior periphery of the rig.
>
The present invention has the object of solving the above- mentioned problem. This object is achieved by a sensor arrange¬ ment of the kind disclosed in the claims, in which the dis¬ tinguishing features of the invention are disclosed.
The invention will now be described in more detail in the following and in connection with the accompanying drawings, where FIGURE 1 is a schematic perspective view illustrating a hoisting rig as it is lowered and guided over a container, and
FIGURES
2 a-d schematically illustrate some cases of how the invention enables locating of the rig above a contai¬ ner.
In Fig. 1 there is illustrated a lifting rig 1, which via a cable arrangement is suspended in an unillustrated crane or the like, there being an electric cable 3 connecting the rig 1 to a control unit. The control unit can be operated both manually and automatically by the crane driver for locating the rig in relation to the container which is to be lifted. The container 4 is quite conventional, and has a corner box 5 in each corner, with which turning lugs 6 on the rig 1 shall coact for locking the rig to the container so that the latter can be lifted.
A pair of sensors la, b; lc, d is placed at each diagonally opposing corner of the rig 1, one sensor on the short side and the other on the long side of the rig. These sensors 7 a-d sense when the rig is immediately above the container, if the rig 1 is properly oriented, i.e. located, in relation to the container 4.
A position is illustrated in Figure 2a, where the rig 1 is wrongly placed diagonally in relation to the container 4, which is to be lifted. This is registered by the sensor 7c on one short side and the sensor 7b on the long side at the opposing corner sensing the container 4 under the rig 1, while the other two sensors 7a and 7d do not sense the container. The control unit can then automatically, or by assistance from the crane driver, guide the rig 1 to the right position by moving it in the direction of the arrows 8 and 9. As soon as the sensors 7a and 7d also sense the container under the rig, the locating movement ceases and the rig can then be lowered into the position in which the lug 6 can be locked in the corner boxes 5 without any problem.
A position is illustrated in Figure 2b where only one la of the sensors, on one short side of the rig 1, does not sense the container under it. Movement of the rig 1 then only needs to take place in its longitudinal direction, as illustrated by the arrow 9.
A position corresponding to the one in Figure 2a is illustrated in Figure 2c, but where both sensors 7c and 7d at one corner of the rig sense the container under it, whereas the sensors at the opposite corner of it do not sense the container. The rig 1 is then moved in the direction of the arrows 9 and 10 for location.
A position is illustrated in Figure 2d where the rig 1 is wrongly placed in the transverse direction of the container 4, which is apparent by only one sensor 7c not sensing any container. The rig is moved in the direction of the arrow 10 for location.
The sensors may comprise any kind of suitable touchless sensor, which has a sensing distance up to one or some few metres. Accordingly, they may comprise such which are based on superso- nics, high frequency light, acoustics, radar etc.
It will also be understood that in response to how the sensors are actuated, the rig 1 can be moved, rectilinearly as well as when it is swinging, to its located position in relation to the container 4 under it. This locating movement suitably takes place as the rig 1 is lowered, so that it does not need to be stopped for locating and then lowered in the right position on to the container.
If it is thought suitable, the rig can be provided with more sensors than what has been described above, and the placing of these can also vary depending on the type of hoisting operation.
As mentioned, the sensors send signals to the hoisting machinery via a control unit. The actual position of the rig is suitably arranged automatically with the aid of the control unit so that the crane driver does not need to watch over the location of the rig 1. In a more simple embodiment, the signals can be caused to form a display in the driver's cabin, and with the aid of the display the driver then guides the rig 1 into the correct position in relation to the container which is to be lifted.
The sensors 7a-d have been shown situated outside the rig 1 itself, but this is only a possible situation. In practice they are suitably placed on the inside of the rig beams, to protect them from the effect of blows, weather and the like.
The object mentioned in the introduction has been attained with the aid of the present invention. However, one skilled in the art may visualise modifications of the invention, but these are intended to be within the scope of the invention as defined in the accompanying claims.

Claims

1. A sensing arrangement intended for a hoisting rig (1), where the latter is rectangular and rigid or adjustable, for locating it above a container (4) which is to be connected to it for hoisting the container (4), characterized in that at least one sensor (7a-7d) is attached to each side of the rig (1), in that each sensor (7a-7d) sends a signal towards the container (4) which is to be lifted, for sensing the position of the container in relation to the rig (1) and in response to its interpretation of the sensing signal sends control signals used for correctly locating of the rig (1) in relation to the container (4).
2. Sensing arrangement as claimed in claim 1, characterized in that the sensors (7a-7d) are placed in the vicinity of the corners of the rig (1), with two sensors (7a, 7b; 7c, 7d) at least at each of two diametrically opposing corners of the rig (1).
3. Sensing arrangement as claimed in claims 1 or 2, charac¬ terized in that the sensors (7a-d) are situated inside the outer periphery of the rig (1).
4. Sensing arrangement as claimed in any one of the preceding claims, characterized in that the sensors (7a-7d) are supersonic sensors.
PCT/SE1990/000108 1989-02-17 1990-02-16 Sensing arrangement in connection with spreaders Ceased WO1990009336A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8900568A SE8900568D0 (en) 1989-02-17 1989-02-17 SENSING ARRANGEMENTS AT LIFTKK
SE8900568-0 1989-02-17

Publications (1)

Publication Number Publication Date
WO1990009336A1 true WO1990009336A1 (en) 1990-08-23

Family

ID=20375092

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1990/000108 Ceased WO1990009336A1 (en) 1989-02-17 1990-02-16 Sensing arrangement in connection with spreaders

Country Status (2)

Country Link
SE (1) SE8900568D0 (en)
WO (1) WO1990009336A1 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992019526A1 (en) * 1991-05-06 1992-11-12 Bromma Conquip Ab Optical sensing and control system
WO1994005586A1 (en) * 1992-08-28 1994-03-17 Johann Hipp Process and device for controlling a portainer
EP0596330A1 (en) * 1992-11-03 1994-05-11 Siemens Aktiengesellschaft Arrangement for measuring crane load oscillations
EP0618460A3 (en) * 1993-03-31 1995-08-16 Siemens Ag System for determining the position and/or velocity of an object by means of surface wave identification tags, to be used especially for loading and handling systems.
DE19632181C1 (en) * 1996-08-09 1997-09-18 Dieter Gloos Spreader with lifting drive mechanism, control unit and twist-locks
DE19619052C1 (en) * 1996-05-03 1997-12-11 Mannesmann Ag Load suspension devices for standardized cargo units, especially containers and swap bodies
WO2001089979A1 (en) * 2000-05-24 2001-11-29 Stinis Beheer B.V. Container gripping device having contact elements for braking
EP1394094A3 (en) * 2002-07-29 2004-06-30 Hartmann & König Stromzuführungs AG Accumulating device for a traction element
CN102556833A (en) * 2011-12-03 2012-07-11 江苏欧玛机械有限公司 Hanger with real-time monitoring function
US20140363267A1 (en) * 2010-08-16 2014-12-11 Boeing Co Automated sling load handler for an aircraft
CN108046127A (en) * 2017-12-11 2018-05-18 机科（山东）重工科技股份有限公司 A kind of method of adjustment that alignment little deviation is stacked for container

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3743056A (en) * 1971-05-19 1973-07-03 Westinghouse Electric Corp Fail-safe detector
EP0342655A2 (en) * 1988-05-18 1989-11-23 Tax Ingenieurgesellschaft Mbh Crane installation for a container

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3743056A (en) * 1971-05-19 1973-07-03 Westinghouse Electric Corp Fail-safe detector
EP0342655A2 (en) * 1988-05-18 1989-11-23 Tax Ingenieurgesellschaft Mbh Crane installation for a container

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992019526A1 (en) * 1991-05-06 1992-11-12 Bromma Conquip Ab Optical sensing and control system
WO1994005586A1 (en) * 1992-08-28 1994-03-17 Johann Hipp Process and device for controlling a portainer
EP0596330A1 (en) * 1992-11-03 1994-05-11 Siemens Aktiengesellschaft Arrangement for measuring crane load oscillations
US5491549A (en) * 1992-11-03 1996-02-13 Siemens Aktiengesellschaft Apparatus for acquiring pendulum oscillations of crane loads using measurement techniques
EP0618460A3 (en) * 1993-03-31 1995-08-16 Siemens Ag System for determining the position and/or velocity of an object by means of surface wave identification tags, to be used especially for loading and handling systems.
DE19619052C1 (en) * 1996-05-03 1997-12-11 Mannesmann Ag Load suspension devices for standardized cargo units, especially containers and swap bodies
DE19632181C1 (en) * 1996-08-09 1997-09-18 Dieter Gloos Spreader with lifting drive mechanism, control unit and twist-locks
WO2001089979A1 (en) * 2000-05-24 2001-11-29 Stinis Beheer B.V. Container gripping device having contact elements for braking
US7665784B2 (en) 2000-05-24 2010-02-23 Stinis Beheer B.V. Container gripping device having contact elements for braking
EP1394094A3 (en) * 2002-07-29 2004-06-30 Hartmann & König Stromzuführungs AG Accumulating device for a traction element
US20140363267A1 (en) * 2010-08-16 2014-12-11 Boeing Co Automated sling load handler for an aircraft
US9663228B2 (en) * 2010-08-16 2017-05-30 The Boeing Company Automated sling load handler for an aircraft
CN102556833A (en) * 2011-12-03 2012-07-11 江苏欧玛机械有限公司 Hanger with real-time monitoring function
CN108046127A (en) * 2017-12-11 2018-05-18 机科（山东）重工科技股份有限公司 A kind of method of adjustment that alignment little deviation is stacked for container

Also Published As

Publication number Publication date
SE8900568D0 (en) 1989-02-17

Similar Documents

Publication Publication Date Title
WO1990009336A1 (en) Sensing arrangement in connection with spreaders
EP2523891B1 (en) Cable-controlled container yoke
US9108826B2 (en) Crane control
US10862290B2 (en) Line guide device having a movement sensor as well as a drive arrangement and winding apparatus having such a line guide device
US4504918A (en) Arrangement for controlling the operation of a grabbing crane for loading and unloading a ship
US4170308A (en) Hydraulic function disconnect means
US4118012A (en) Load transfer
CN1095685A (en) Bulk material leveling apparatus
DE4423797A1 (en) Precision container positioning and stacking device
PL296757A1 (en) Theft preventing device for use in flag or similar object lifting and lowering systems
EP3988440A1 (en) Guided lifting system
EP1283814B1 (en) A spreader
US4121293A (en) Indication means for indicating suitable conditions for the transfer of loads between two stations movable relative to each other in a vertical plane
JPH01256496A (en) Load vibration preventer at time of ungrounding of slinging load of crane with boom
CN213802615U (en) Detection system is prevented lifting by collection card
US4524952A (en) Safety system for an oil well derrick
DE29510031U1 (en) Device for the precise positioning and stacking of containers
KR20140140156A (en) Lifting Apparatus for Ship
RU1768495C (en) Cable crane
SU821373A1 (en) Device for monitoring hang-up of containers of hoist with head and balancing rope s
CN223342171U (en) Container sling and container crane with double-container detection function
US5454474A (en) Dual weight assembly for a crane
JPS6151485A (en) Method of detecting form of crane hung-load
FR2309454A1 (en) Portal or travelling grab crane - is operated by hand or automatically with telescopic guide
SU901221A1 (en) Safety device for load lifting gear

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB IT LU NL SE