US3858845A - Manually operable lifting apparatus - Google Patents

Manually operable lifting apparatus Download PDF

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Publication number
US3858845A
US3858845A US342935A US34293573A US3858845A US 3858845 A US3858845 A US 3858845A US 342935 A US342935 A US 342935A US 34293573 A US34293573 A US 34293573A US 3858845 A US3858845 A US 3858845A
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US
United States
Prior art keywords
lifting
connecting member
groove
cable
switch
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.)
Expired - Lifetime
Application number
US342935A
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English (en)
Inventor
Hugo Grote
Ludolf Peithmann
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
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3858845A publication Critical patent/US3858845A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/18—Power-operated hoists
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/01—General aspects of mobile cranes, overhead travelling cranes, gantry cranes, loading bridges, cranes for building ships on slipways, cranes for foundries or cranes for public works
    • B66C2700/012—Trolleys or runways
    • B66C2700/017—Installations characterised by their destination or by the load-engaging element for as far as the trolley is essential
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D2700/00—Capstans, winches or hoists
    • B66D2700/02—Hoists or accessories for hoists
    • B66D2700/026—Pulleys, sheaves, pulley blocks or their mounting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17863—Shouldered-tang holding

Definitions

  • a connecting member is attached to a load receiving member and is fixed to a lifting rope on a lifting device.
  • Manually operable switches are incorporated into the connecting member for controlling the lifting operation. Movement of a load can be carried out by manually moving the connecting member and, at the same time, operating the switches which control the lifting and lowering of the load. Handles can be formed on the connecting member or, if required in special instances, the connecting member can be operated over a distance bar attached to it.
  • the presentinvention is directed to a manually operable lifting apparatus and, more particularly, it is directed to the combination of a load receiving member and a connecting member attached to it which includes switches for controlling the lifting and lowering opera tion of the load receiving member.
  • Various lifting apparatus are widely used in industrial plants and generally have a carrying compacity of 125 kg or more. Such apparatus is used whenever a load cannot be moved manually.
  • the constant lifting of a relatively small load of 8 kp is considered asthe maximum admissible load for a woman where relatively constant lifting is involved.
  • such medium heavy or constant lifting work is substantially exceeded both in the weight of the lift and in the number of times it is performed within a given period, for exam ple, such as lifting and chucking work pieces in machines.
  • lifting and positioning loads not only is there a considerable reduction in the efficiency of the work, but there is also a considerable likelihood of physical injury.
  • All known lifting apparatus of this type have the disadvantage that they engage the load over a movable connection, for example a lifting hook which engages in a lifting eye or loop. While special load receiving or lifting members have been devised for engagement with a crane hook in lifting certain materials, such arrangements have made the safe guidance of the load more difficult, though such safe guidance has not always been available in conventional lifting apparatus.
  • the primary object of the present invention is to provide a lifting apparatus which can safely guide a load supported on a load receiving member without the operators view being hindered by the lifting apparatus itself. Further, switches for controlling the lifting operation can be positioned adjacent the load receiving means so that the lifting operation can be easily carried out.
  • a lifting apparatus which includes an upwardly and downwardly movable load receiving member with switches located adjacent the load receiving member which can be operated by a worker while he guides the load being lifted.
  • a manipulating member including the switches is attached directly to the load receiving member.
  • the load receiving or carrying member and the switch can be mounted on a connecting member and preferably the load receiving member is rigidly attached to the connecting member, further, the connecting member can be provided with an arrangement for interchangeably attaching a variety of load receiving members to it.
  • the load receiving members can be magnets, siphons, gripping clamps and the like.
  • the connecting member can also be provided with a special fastening groove into which special load receiving members can be fitted, with such an arrangement a variety of load receiving members can be made in accordance with the type of of material to be handled.
  • the connecting part can be provided with a groove opened at the bottom and along at least one side with a widened portion at the upper end of the groove. Further, a sliding lock can be incorporated into the groove which prevents the load receiving member from being accidently displaced from the groove.
  • Another feature of the invention is the arrangement of the cable extending between the lifting device of the apparatus and the switch mounted on the connecting member.
  • the cable can be wound helically about and spaced outwardly from the lifting rope extending downwardly from the lifting device.
  • the apparatus Since the apparatus has a maximum lifting stroke of about 2 m it is necessary only to provide a few turns of the cable about the lifting rope. Further, the cable can be a flat cable guided in folds with the cable including rings which are guided along the lifting rope.
  • the switch can be attached to the connecting member over a distance bar.
  • the switch on the distance bar is connected to the switch arrangement in the connecting member by means of a plug connection.
  • FIGS. 1 to 5 are perspective views of various applications of the lifting apparatus embodying the present invention.
  • FIG. 6 is a front view of a lifting apparatus embodying the present invention.
  • FIG. 7 is a side elevational view of the lifting apparatus shown in FIG. 6;
  • FIG. 8 is an enlarged detailed view of the encircled portion of FIG. 7 designated by the reference character
  • FIG. 9 shows a portion of the lifting apparatus in a perspective view
  • FIG. 10 is a view of a lifting apparatus, similar to that shown in FIG. 9, with a member for operating the apparatus at a distance spaced from the load carrying member.
  • FIG. 1 a woman is shown transporting a barrel supported in a scissors-type load receiving member 5 rigidly attached to a connecting member 4 and supported at the lower end of a lifting rope 2 which depends downwardly from a lifting device 1.
  • Several switches 6 are positioned on the connecting member 4 and are connected over a cable 3 to the lifting device 1.
  • the lifting device is supported on and moves along the rail of a column jib crane.
  • FIG. 2 an acid bottle or carboy is supported on the load carrying member 5 and a worker operates the switches on the connecting member 4 over a distance bar 7. Because of the dangerous content of the carboy the distance bar, which includes the switches for operating the lifting apparatus, permits the worker to stand clear of the carboy as it is lifted onto the hand truck. In this arrangement the lifting apparatus is not shown.
  • FIG. 3 a worker is shown lifting a stack of material onto a hand cart as he guides the material with one hand and operates the lifting apparatus with the other and the switches are provided on the connecting member so that they can be operated by the worker as he holds the handle.
  • FIG. 4 the embodiment of the lifting apparatus is similar to that in FIG. 3 with the worker holding the connecting member by means of a handle as the load carrying member lifts a motor out of a passenger car.
  • FIG. 5 the various movements involved in an operation are shown where a workpiece is lifted and clamped into a machine, with the worker guiding the workpiece in the proper direction with his right hand by means of the lifting apparatus while he operates the clamping device on the machine with his left hand.
  • the lifting apparatus is again used to remove the workpiece and to place it on a conveyor track.
  • the worker has both hands free for guiding and positioning the load and, at the same time, he can operate the switches which control the upward and downward movement of the lifting apparatus.
  • the lifting device 1 supports the connecting member 4 which has a fastening fixture 5a for attaching special load receiving members.
  • the fastening fixture has a collar 5d against which the special load receiving members, not shown, can be positioned with a nut 50 running on the threads 5b securing the load receiving member in place.
  • switches 6 On the body of the connecting member 4 above the fastening fixture 5a are switches 6 for operating the lifting device and a handle 4a is provided on the connecting member adjacent the switches.
  • the fastening fixture 5a is shown extending upwardly into a groove located in the lower portion of the connecting member 4.
  • the upper portion of the groove 4c is widened relative to the lower portion and the fastening fixture is secured against rotation by means of square projection 5e located within the widened portion of the groove.
  • a spring 9 which biases a bolt 10 in the upward direction for engagement within a recess 11 located in the connecting member 4 at the upper end of the groove.
  • the engagement of the bolt 10 within the recess 11 provides a locking arrangement which prevents the fastening fixture from accidently sliding out of the connecting member.
  • the cable 3 is in the form of a flat cable which has the wires located only at the sides and at spaced locations of about 25cm along the central region of the cable openings 30 reinforced by oblong plastic rings 3b are provided so that the cable can be guided along the lifting rope about which the rings 3b are positioned.
  • the connecting member 4 has a laterally outwardly extending handle 4b with switches 6, 6a located in the handle, the switch 6 controls the lifting device 1 while the switch 6a operates the load receiving member, not shown.
  • the connecting member 4 has a plug connection 8a for a distance bar 7, note FIG. 10, and a cable plug-connection 8b for connecting a switch 6 on the handle 7a of the distance bar 7 into the connecting member.
  • the lifting apparatus can be guided and controlled over the distance bar 7 at its end spaced from the connecting member, the distance bar 7 has fork shaped grip ends 7a whereby two hands can be used in operating the distance bar and so that the connecting member can be turned or tilted in any desired direction.
  • a load receiving member not shown, for example an electromagnet or suction member for lifting large surface pieces, for example, wood sheets or metal plates
  • the lifting apparatus can be guided and controlled over the distance bar 7 at its end spaced from the connecting member, the distance bar 7 has fork shaped grip ends 7a whereby two hands can be used in operating the distance bar and so that the connecting member can be turned or tilted in any desired direction.
  • Lifting apparatus comprising a lifting means, a load receiving member associated with said lifting means, and manually operable switch means for controlling the movement of said load receiving member
  • said lifting means includes a lifting device, a lifting rope secured to and extending downwardly from said lifting device, a connecting member attached to the end of said lifting rope depending from said lifting device
  • said connecting member includes a handle and a fastening fixture for attaching said load receiving member to said connecting member and said fastening member arranged to engage differently constructed said load receiving members for handling different types of loads
  • said switch means mounted on said handle and operatively associated with said lifting device for operating said lifting device while said handle affords manipulation of a load held by said receiving member
  • said connecting member has a groove therein with an opening from the exterior surface of the connecting member, said groove having a widened portion at its inner end as compared to the width of the portion thereof located at the opening from said groove on the exterior surface of the connecting member, said groove arranged to receive and hold said fastening fixture, a sliding lock arranged for
  • a distance bar is removably attached to and extends laterally outwardly from said connecting member, and said switch means includes a first switch located in said connecting member, a second switch mounted in said distance bar, and a plug contact on said distance bar for connecting said second switch in said distance bar to said first switch in said connecting member.
  • Lifting apparatus as set forth in claim 1, wherein a cable is connected between said lifting device and said switch means on said connecting member for operating said lifting device.
  • said cable comprises a flat cable guided in folds, ring shaped members positioned in and spaced at intervals along said cable with said ring-shaped members arranged to encircle said lifting rope so that the folds of said cable can be expanded and contracted in response to the lifting and lowering of said load receiving member.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
US342935A 1972-03-24 1973-03-20 Manually operable lifting apparatus Expired - Lifetime US3858845A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2214530A DE2214530B2 (de) 1972-03-24 1972-03-24 Elektrozug

Publications (1)

Publication Number Publication Date
US3858845A true US3858845A (en) 1975-01-07

Family

ID=5840106

Family Applications (1)

Application Number Title Priority Date Filing Date
US342935A Expired - Lifetime US3858845A (en) 1972-03-24 1973-03-20 Manually operable lifting apparatus

Country Status (9)

Country Link
US (1) US3858845A (fr)
JP (2) JPS496644A (fr)
CH (1) CH556299A (fr)
DE (1) DE2214530B2 (fr)
FR (1) FR2177850B1 (fr)
GB (1) GB1422167A (fr)
IT (1) IT982605B (fr)
NL (1) NL171252C (fr)
SE (1) SE384668B (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921959A (en) * 1974-07-22 1975-11-25 Columbus Mckinnon Corp Load balancer and hoist control
US4635903A (en) * 1985-07-29 1987-01-13 Columbus Mckinnon Corporation Electric hoist pendant control switch arrangement
US5480125A (en) * 1992-09-03 1996-01-02 Mannesmann Aktiengesellschaft Hoist with a lifting device
US5507472A (en) * 1992-09-03 1996-04-16 Mannesmann Aktiengesellschaft Hoist with a lifting device
WO1997021622A1 (fr) * 1995-12-14 1997-06-19 Protema Ab Dispositif de levage
US6267356B1 (en) 1995-01-25 2001-07-31 Deep Tek Limited Apparatus and a method for use in handling a load
US6698722B1 (en) 1999-03-22 2004-03-02 Deep Tek Limited Apparatus and method for use in handling a load
US20140143952A1 (en) * 2011-08-03 2014-05-29 Arjohuntleigh Magog Inc. Emergency Stop (Lockout) System For Patient Hoists/Lifts

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2513031C2 (de) * 1975-03-25 1987-08-20 Mannesmann AG, 4000 Düsseldorf Hebezeug
CH605393A5 (fr) * 1975-12-15 1978-09-29 Landert Motoren Ag
DE3307792C2 (de) * 1983-03-04 1986-07-31 R. Stahl Fördertechnik GmbH, 7000 Stuttgart Hebezeug
JPS60195894U (ja) * 1984-06-06 1985-12-27 象印チエンブロツク株式会社 電動式チエンブロツク
JPS612393U (ja) * 1984-06-11 1986-01-09 象印チエンブロツク株式会社 電動式チエンブロツク
JPS612392U (ja) * 1984-06-11 1986-01-09 象印チエンブロツク株式会社 電動式チエンブロツク
JPH0138151Y2 (fr) * 1984-09-05 1989-11-15
JPH048153Y2 (fr) * 1984-09-05 1992-03-02
DE9112755U1 (de) * 1991-10-09 1992-03-19 Strödter Handhabungstechnik GmbH, 4777 Welver Bedienhilfe für ein balancierendes Hebezeug
FI104549B (fi) * 1995-06-29 2000-02-29 Erikkilae Nostotekniikkaa Oy Siirtolaite
CN110697591A (zh) * 2019-10-18 2020-01-17 国网四川省电力公司南充供电公司 柱上式变压器提升装置及提升方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2600887A (en) * 1948-08-07 1952-06-17 Micro Poise Engineering And Sa Electric hoist
US2924430A (en) * 1957-01-24 1960-02-09 Gardner Denver Co Air hoist
US3310290A (en) * 1965-05-10 1967-03-21 Gardner Denver Co Braking means for a rotary hoist

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2801760A (en) * 1953-01-09 1957-08-06 Columbia Broadcasting Syst Inc Hoist
US2989288A (en) * 1955-06-03 1961-06-20 Gardner Denver Co Air hoist
US3450428A (en) * 1967-07-31 1969-06-17 Delbert W Zimmermann Device for handling workpieces

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2600887A (en) * 1948-08-07 1952-06-17 Micro Poise Engineering And Sa Electric hoist
US2924430A (en) * 1957-01-24 1960-02-09 Gardner Denver Co Air hoist
US3310290A (en) * 1965-05-10 1967-03-21 Gardner Denver Co Braking means for a rotary hoist

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921959A (en) * 1974-07-22 1975-11-25 Columbus Mckinnon Corp Load balancer and hoist control
US4635903A (en) * 1985-07-29 1987-01-13 Columbus Mckinnon Corporation Electric hoist pendant control switch arrangement
US5480125A (en) * 1992-09-03 1996-01-02 Mannesmann Aktiengesellschaft Hoist with a lifting device
US5507472A (en) * 1992-09-03 1996-04-16 Mannesmann Aktiengesellschaft Hoist with a lifting device
US6267356B1 (en) 1995-01-25 2001-07-31 Deep Tek Limited Apparatus and a method for use in handling a load
US6471188B2 (en) 1995-01-25 2002-10-29 Deep Tek Limited Apparatus and a method for use in handling a load
WO1997021622A1 (fr) * 1995-12-14 1997-06-19 Protema Ab Dispositif de levage
US6698722B1 (en) 1999-03-22 2004-03-02 Deep Tek Limited Apparatus and method for use in handling a load
US20140143952A1 (en) * 2011-08-03 2014-05-29 Arjohuntleigh Magog Inc. Emergency Stop (Lockout) System For Patient Hoists/Lifts
US9877885B2 (en) * 2011-08-03 2018-01-30 Arjohuntleigh Magog Inc. Emergency stop (lockout) system for patient hoists/lifts

Also Published As

Publication number Publication date
FR2177850B1 (fr) 1977-04-29
DE2214530B2 (de) 1975-09-25
SE384668B (sv) 1976-05-17
DE2214530A1 (de) 1973-10-31
NL171252B (nl) 1982-10-01
JPS52170461U (fr) 1977-12-24
NL171252C (nl) 1983-03-01
IT982605B (it) 1974-10-21
FR2177850A1 (fr) 1973-11-09
GB1422167A (en) 1976-01-21
NL7303891A (fr) 1973-09-26
CH556299A (de) 1974-11-29
JPS496644A (fr) 1974-01-21

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