EP3858780A1 - Bloc de crochet amélioré - Google Patents

Bloc de crochet amélioré Download PDF

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Publication number
EP3858780A1
EP3858780A1 EP21154390.5A EP21154390A EP3858780A1 EP 3858780 A1 EP3858780 A1 EP 3858780A1 EP 21154390 A EP21154390 A EP 21154390A EP 3858780 A1 EP3858780 A1 EP 3858780A1
Authority
EP
European Patent Office
Prior art keywords
hook
block apparatus
hook block
rotation
hook member
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.)
Pending
Application number
EP21154390.5A
Other languages
German (de)
English (en)
Inventor
Joseph O'kane
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.)
Okane Joseph
Original Assignee
Okane Joseph
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 Okane Joseph filed Critical Okane Joseph
Publication of EP3858780A1 publication Critical patent/EP3858780A1/fr
Pending legal-status Critical Current

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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
    • B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
    • B66C13/085—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions electrical
    • 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
    • B66C1/34—Crane hooks

Definitions

  • the present invention relates to hook block apparatus.
  • the present invention relates to hook block apparatus which allows remote rotating of the load.
  • a hook block provides the connection between the lifting rope (or cable or chain) of a hoisting device, such as a crane, and the load.
  • the hook block has a lower part to which a hook is fastened and an upper part in which sheaves, also referred to as pulleys, are arranged on a shaft.
  • the lifting rope is reeved over the sheeves to provide a mechanical advantage that amplifies the force applied to the rope according to the pulley principle.
  • the hook is rotatably connected to the lower part of the hook block via a bearing arrangement so that the suspended load may be rotated about a vertical axis.
  • This allows the load to be rotationally moved to the desired orientation before depositing the load.
  • a tag line can be attached to the load to allow an operator to rotate the load.
  • this requires that the operator be laterally close to the suspended load and perhaps even under the suspended load. In the event of a catastrophic failure, the load could fall or tilt and impact the operator.
  • tag lines can easily become wrapped around an operator attempting to manoeuvre the load which can be extremely dangerous as the workman can then accidentally be lifted by the crane movements with serious injuries occurring.
  • a load is lowered this can also result in a large amount of slack in the tag line with this simply lying on the ground.
  • slack tag line lying on the ground this can easily become entangled with other articles.
  • the slack tag line can also become entangled with other workmen in the near vicinity who may accidentally walk over the tag line.
  • the load may impact an object which causes the load to rotate. This can be dangerous and it can take some time for the load to stop rotating in alternating directions and come to a stop.
  • hook block apparatus which allows rotational positioning of the suspended load. It is desirable to provide a hook block apparatus which allows rotational positioning of the suspended load from a remote location. It is desirable to provide a hook block apparatus which selectively allows or resists rotational movement of the suspended load.
  • a hook block apparatus comprising:
  • the hook member is rotatably connected to the lower portion via a bearing arrangement.
  • the rotation means comprises a first gear provided at the connection of the hook member to the lower portion.
  • the rotation means comprises a motor having an output shaft which is coupled to the first gear such that operation of the motor causes rotation of the hook member.
  • the motor is an electric motor.
  • the motor is adapted to provide precise rotational positioning of the hook member.
  • the motor is a stepper motor or the like.
  • the motor may be a hydraulic motor or a pneumatic motor.
  • At least a second gear interposes the first gear and the output shaft of the motor.
  • at least one of the rotational output speed of the motor and the sizing of at least one of the first and second gears are configured to allow slow rotating of the hook member, such as less than 6 RPM.
  • the rotation means is adapted to prevent or impede unintended rotation of the hook member.
  • the hook block apparatus includes a rotation sensor for sensing rotation of the hook member.
  • the rotation sensor is adapted to sense the direction of rotation.
  • the rotation sensor is connected to the rotation means and the rotation means is adapted to apply a rotating force to the hook member in an opposite direction to that of unintended rotation of the hook member.
  • the rotation means is selectively disengageable from the hook member such that the hook member is freely rotatable relative to the lower portion.
  • the rotation means is adapted to allow the hook member to be rotated to any orientation through 360 degrees.
  • the rotation means is wirelessly operable from a remote location.
  • the rotation means includes a receiver for wirelessly receiving signals from a remote transmitter.
  • the receiver and transmitter are configured such that signals can be sent over a distance of at least 20 metres, preferably at least 100 metres.
  • the hook block apparatus includes a portable device which includes the transmitter for transmitting signals to the receiver.
  • the portable device comprises a remote control device.
  • the portable device may be a smart device such as a smart phone or tablet which is configured using an app.
  • the hook block apparatus includes at least one vision sensor, such as a camera.
  • the vision sensor is orientated so as to sense the rotational orientation of the hook member.
  • the vision sensor includes a transmitter for transmitting an image of the hook member to the portable device.
  • the hook block apparatus is configured to have a safe working load (swl) of at least 30 tonnes, preferably at least 50 tonnes, most preferably 150 tonnes.
  • swl safe working load
  • FIG. 1 shows a hook block apparatus 10 comprising an upper portion 12 and a lower portion 14.
  • the upper portion 12 comprises a sheave assembly 20 for receiving a lifting rope of a hoisting device (not shown).
  • the lower portion 14 fixedly connected to, or integral with, the upper portion 12.
  • a hook 30 is rotatably connected to the lower portion 14 via a bearing arrangement 32.
  • the hook block apparatus 10 also includes rotation means for rotating the hook 30 relative to the lower portion 14 about a vertical axis. This rotation means is self-contained within the lower portion 14 and so not visible in Figure 1 . It is shown diagrammatically in Figure 2 .
  • the rotation means comprises a first gear 40 provided at the connection of the hook 30 to the lower portion 14.
  • An electric motor 42 has an output shaft 44 which is coupled to the first gear 40 such that operation of the motor 42 causes rotation of the hook 30. Power is supplied to the motor 42 from a sealed 12 volt battery.
  • a second gear 46 interposes the first gear 40 and the output shaft 44 of the motor 42.
  • the rotational output speed of the motor 42 and the gear ratios of the first and second gears are selected to allow slow rotating of the hook 30, such as less than 6 RPM.
  • connection of the first gear 40 to the motor 42 impedes unintended rotation of the hook and any suspended load.
  • a rotation sensor 50 is provided for sensing rotation and the direction of rotation of the hook 30.
  • the rotation sensor 50 is connected to the motor 42 such that the motor 42 can apply a rotating force to the hook 30 in an opposite direction to that of any unintended rotation of the hook 30.
  • the first gear 40 is selectively disengageable from the hook 30 so that the hook 30 is freely rotatable relative to the lower portion. This can be useful in the event of an electrical failure or the like.
  • the rotation means is wirelessly operable from a remote location.
  • the rotation means includes a receiver for wirelessly receiving signals from a remote transmitter.
  • the receiver and transmitter are configured such that signals can be sent over a distance of at least 100 metres.
  • the hook block apparatus 10 includes a portable device 60 which includes the transmitter for transmitting signals to the receiver 52.
  • the portable device can be a remote control device or a smart phone or tablet which is configured using an app.
  • the hook block apparatus includes a camera 70 which is orientated so as to sense the rotational orientation of the hook 30.
  • the vision sensor can include a transmitter for transmitting an image of the hook 30 to the portable device 60.
  • the hook block apparatus 10 can be configured to have a safe working load (swl) of at least 30 tonnes, most preferably 148 tonnes.
  • the present invention allows safer rotational positioning of the suspended load from a remote location. It can also selectively allow or resist rotational movement of the suspended load.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
EP21154390.5A 2020-01-29 2021-01-29 Bloc de crochet amélioré Pending EP3858780A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2001252.2A GB2593665A (en) 2020-01-29 2020-01-29 Improved Hook block

Publications (1)

Publication Number Publication Date
EP3858780A1 true EP3858780A1 (fr) 2021-08-04

Family

ID=69725984

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21154390.5A Pending EP3858780A1 (fr) 2020-01-29 2021-01-29 Bloc de crochet amélioré

Country Status (2)

Country Link
EP (1) EP3858780A1 (fr)
GB (1) GB2593665A (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1229282A (fr) * 1958-07-17 1960-09-06 Dispositif rotatif de support d'outils ou de charge
DE3234395A1 (de) * 1982-09-16 1984-03-22 F.T. Industries Co., Ltd., Fukuyama, Hiroshima Funkgesteuerte, schwenkbare lasthakenanordnung
US5071184A (en) * 1989-07-18 1991-12-10 Potain Motorized load rotation device with autonomous power supply for cable lifting mechanisms
JPH09165189A (ja) * 1995-12-19 1997-06-24 Tokyu Constr Co Ltd シーブブロックの旋回制御装置及び旋回制御方法
EP2447202A1 (fr) * 2009-06-22 2012-05-02 Aoki Machinery Co., Ltd Dispositif a crochets de levage
JP2014237503A (ja) * 2013-06-06 2014-12-18 清水建設株式会社 クレーンフック
JP2018062414A (ja) * 2016-10-13 2018-04-19 古河ユニック株式会社 移動式クレーン用フック装置及びこれを備えた移動式クレーン
CN208916616U (zh) * 2018-08-31 2019-05-31 中昇建机(南京)重工有限公司 一种起重机吊钩及可视化吊装塔式起重机

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2577694Y2 (ja) * 1989-05-17 1998-07-30 山九株式会社 回転式揚重フック装置
KR100389563B1 (en) * 2003-03-28 2003-06-28 Byung Kwan Jean Hook device for crane
US7656459B2 (en) * 2006-04-20 2010-02-02 Pacific Systems Solution Llc Crane hook and trolley camera system
CN202245713U (zh) * 2011-08-31 2012-05-30 无锡汇力机械制造有限公司 起重机用旋转吊钩
CN204297927U (zh) * 2014-08-18 2015-04-29 河南省中杰起重机有限公司 一种电动旋转定位吊钩及使用该吊钩的起重机
CN204689371U (zh) * 2015-04-25 2015-10-07 河南华北起重吊钩有限公司 一种智能控制旋转吊钩
KR102044521B1 (ko) * 2017-07-04 2019-12-02 김영환 크레인 후크의 회전 제어장치

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1229282A (fr) * 1958-07-17 1960-09-06 Dispositif rotatif de support d'outils ou de charge
DE3234395A1 (de) * 1982-09-16 1984-03-22 F.T. Industries Co., Ltd., Fukuyama, Hiroshima Funkgesteuerte, schwenkbare lasthakenanordnung
US5071184A (en) * 1989-07-18 1991-12-10 Potain Motorized load rotation device with autonomous power supply for cable lifting mechanisms
JPH09165189A (ja) * 1995-12-19 1997-06-24 Tokyu Constr Co Ltd シーブブロックの旋回制御装置及び旋回制御方法
EP2447202A1 (fr) * 2009-06-22 2012-05-02 Aoki Machinery Co., Ltd Dispositif a crochets de levage
JP2014237503A (ja) * 2013-06-06 2014-12-18 清水建設株式会社 クレーンフック
JP2018062414A (ja) * 2016-10-13 2018-04-19 古河ユニック株式会社 移動式クレーン用フック装置及びこれを備えた移動式クレーン
CN208916616U (zh) * 2018-08-31 2019-05-31 中昇建机(南京)重工有限公司 一种起重机吊钩及可视化吊装塔式起重机

Also Published As

Publication number Publication date
GB2593665A (en) 2021-10-06
GB202001252D0 (en) 2020-03-11

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