US3044819A - Sheet-metal handling apparatus - Google Patents

Sheet-metal handling apparatus Download PDF

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Publication number
US3044819A
US3044819A US111233A US11123361A US3044819A US 3044819 A US3044819 A US 3044819A US 111233 A US111233 A US 111233A US 11123361 A US11123361 A US 11123361A US 3044819 A US3044819 A US 3044819A
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US
United States
Prior art keywords
arms
load
parallel
motor
sheet
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
US111233A
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English (en)
Inventor
Pierre Simon
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
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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
Priority claimed from FR827906A external-priority patent/FR1266502A/fr
Priority claimed from FR836482A external-priority patent/FR1272990A/fr
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3044819A publication Critical patent/US3044819A/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
    • 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

  • a gripping apparatus adapted to be used in conjunction with a hoisting and/ or conveying machine
  • this apparatus being characterized in that it comprises hook-carrying arms grouped in face to face relationship to constitute two assembiies each comprising at least one pair of arms and one pair of parallel link-systems connecting said arms to a frame supporting afpower unit having its output shaft coupled to a mechanism adapted to move said assemblies toward and away from each other, said frame being furthermore provided with means for suspending it from a hoisting or Iconveying apparatus.
  • FIGURE l is a perspective view showing an apparatus constructed according to the teachings of this invention.
  • FIGURE 2 is another perspective view showing the apparatus during the lifting of a stack of metal sheets or plates, the gripping larms being designed dierently;
  • FIGURE 3 is a cross-sectional view showing a gripping arm of the apparatus illustrated in FIG. 2;
  • FIGURE 4 is a fragmentary perspective view of a modified embodiment of the 'apparatus of this invention.
  • FIGURE 5 is a longitudinal section showing the coupling device provided between the power unit or motor and the gripping mechanism.
  • the apparatus of this invention comprises arms 1, 2 and 3, 4 bent at right angles Iat their upper portions to profvide corresponding horizontal members 1a, 2a, 3a, 4a. At their lower ends these arms terminate with hook-like portions 5, 6 and 7, 8 and are grouped in face to face relationship to constitute two identical assemblies. Pairs of parallel links 9 and 10, 11 and 12, 13 and 14, 15 and 16, .are pivoted on the one hand on the upper portion-s 1a, 2a, 3a, 4a of the arms, by means of pivot pins 26, 27, 28 and 29, and on the other'hand on a frame 17, each pair of links constituting a parallel motion system.
  • an electromotor 1'8 rotatably driving through a coupling device to be described presently with reference to FIG. Sfa screw 19, a' reducing gear also acting as a stress limiter as will be explained presently.
  • Engaging the screw 19 is a nut-forming socket 21 provided with ears 22 on which are pivotally mounted relatively short links 23, 24 each connected toan arm and parallel-link assembly.
  • the short links 23, 24 are pivotally attached to pairs ⁇ of divergent arms 23a, 2317 and 24a, 24b respectively, the outer ends of these divergent arms being welded -by pairs on cylindrical hollow sleeves 3S, 36.
  • These sleeves engage respectively cylindrical rods 37, 38 interconnecting homologous links 9, 11 and 13, 1'5 of the parallel-link systems of eac-h assembly.
  • the above-described apparatus can be hoisted and dis-V placed by means of any suitable apparatus such as a hoist 39 of which the hook 4t) engagesa loop 41, the side branches 41a of this loop extending downwards and being surrounded by coil compression springs 41b disposed between the top of frame 17 and relevantV end nuts 41C.
  • the springs 41h are compressed and may actuate electric switch means (not shown) inserted in the energizing circuit of the motor 18 to avoid any untimely or faulty operation by opening this circuit automatically when the apparatus is loaded.
  • the hoist 39 is provided with a current outlet 42 fed through a conductor 43.
  • the motor 18 is supplied with current through another cable 44 provided wit-h a plug 45 tting in the outlet 42.
  • the pairs of links 9 and 1110 and 12, 14 and 116, 13and 15 are interconnected through rods 26, 27 and Z8, 29.
  • the rods 27, 28 receive bracing members 30, 31 and 32, 33 each adapted to stillen one member of the parallel-link system.
  • the arms v1, 2, 3 land 4 are provided with aV plate 67 bolted thereon at 68, the inner vertical edgeg67a of each plate 67 being recessed in relation to the hook 5 and projecting somewhat from the arm face which is to engage the load to be hoisted and conveyed.
  • the edge 67a ⁇ of each arm engage the load and prevent it ffrom moving longitudinally.
  • each parallel-link system consist of a plurality of -sections pivotally interconnected about axes extending at right angles to the sections and located in the plane of the parallel-link system concerned, the arms of a same assembly being interconnected through extensible means.
  • the links 9, 10 are each divided into three sections 9a, 9b and 10a, 10b, 10c, and likewise the links 13 and 14, are divided into three sections 13a, 13b, 13a and 14a, 14b, 14e.
  • the sections of a same link are pivotally interconnected about pinsi50, 51, 52, 53, ⁇ 54, 55, S6 and 57.
  • the arms pertaining to a same assembly (1, 2 onV the one hand and 3, 4 on thek 9 other hand) are interconnected through cross members 58, 59 (the cross members rigid with arms 3 and 4 are not shown to simplify the figure) each rigid with the ar-ms and sliding by pairs in ⁇ a sleeve 60, 61 of corresponding configuration.
  • the upper portions 1a, 2a, 3a, 4a of arms 1,2, 3, 4 are not secured on the rods 26, 27, 28, 29 but formed with two holes each engaged by these rods so that the arms may slide therealong, their axial movements being limited on one side by the links of the parallel link systems and on the other side by the bracing members 30-33. Since each assembly comprises two arms mounted on the aforesaid rods 2649, the permissible range of adjustment is equal to twice the distance between the links and the -bracing members. The arms are at their minimum relative spacing when each of them engages a bracing member, and at their maximum relative spacing when each of them engages the links of the parallel-link Systems.
  • This hoisting apparatus equipped with a hoist or like device 39 and a hook 40 ⁇ is brought yabove the apparatus of this invention.
  • the hook 40 engages the loop 41 and the plug is inserted into the current outlet 42.
  • the apparatus is brought above the load to be hoisted and/or conveyed and the motor 18 is energized -in order to rotate the screw 19 in the direction corresponding to the upward travel of the socket 21, so that the short links 23 and 24 move the rods 37, 38 toward each other.
  • These rods cause the links of the parallel-link systems to pivot, and thus the two assemblies comprising the arms 1, 2, and 3, 4 and their hooks are moved toward each other.
  • the motor (not shown) drives through a set of belts 71 a bell-shaped member 72 constituting the driving member of the coupling device. Inside this bellshaped member 72 is a ball-bearing 73 retained in position by set screws 74, this ball-bearing being carried on the other hand by an intermediate sleeve 75 secured on the frame 17 of the apparatus by means of screws 77.
  • a pair of ball-bearings 78, 79 carrying the shaft 80 rigid with the screw 19.
  • the upper end of shaft 80 projects within the frame 17 and has wedged thereon a handwheel 81 for manually controlling the rotation of the screw 19 for example when it is desired to release the arms by hand, in case of motor or current failure.
  • a disk 82 solid with the shaft 8f? carries on its outer periphery a radial lug 83 engageable by a pin 84 screwed in the bottom of the bell-shaped member 72 driven from the engine.
  • This disk 82 constitutes the driven member of the coupling device.
  • the pin 84 contacts the lug 83 on one side thereof in order drivingly to rotate the screw 19.
  • the electromotor is fed in a direction to cause the bell-shaped member 72 and therefore the pin 84 to revolve firstly alone, as the pin 84 moves away from the face of lug 83 which it had previously engaged.
  • the apparatus according to this invention may be used for transporting rigid or semi-rigid objects, such as sheet metal stacks, steel bars, tubes, paper rolls, logs, vehicles, etc.
  • rigid or semi-rigid objects such as sheet metal stacks, steel bars, tubes, paper rolls, logs, vehicles, etc.
  • a gripping apparatus comprising pivoted arms for conveying and hoisting different loads, notably sheet metal stacks, which comprises a frame, hook-carrying arms supported by said frame and grouped in face to face relationship into two assemblies, each assembly comprising at least one pair of arms, deformable parallel-link systems pivoted on the one hand on said frame and on the other hand on each one of said arms, a motor carried by said frame, means operated from said motor for moving said two arm assemblies toward and away from each other in order to grip and release the load respectively, and a coupling device disposed between said motor and said means for moving said arm assemblies toward and away from each other, said coupling device comprising a driving member actuated from said motor and a driven member operating said means, said driving and driven members being such that they permit a free relative rotation through an angle suflicient to cause said motor, when the coupling takes place, t0 attain under no-load conditions a speed suicient to release the arms previously clamped on the load transported by the apparatus.
  • Apparatus as set forth in claim 1, comprising at least one horizontal longitudinal member on which said hook-carrying arms are slidably mounted independently of one another.
  • each longitudinal member is common to the homologous movable sides of the parallel-link systems of a same assembly.
  • each hand control wheel mounted externallyrof said frame arm is provided with .a vertical, relatively sharp edge and rigid with said driven member. recessed from the relevant hookl and projecting somewhat from the arm face which is to co-act with the loads References Cited in the file 0f this Patent tobelfxranspotrted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Tyre Moulding (AREA)
US111233A 1960-05-21 1961-05-19 Sheet-metal handling apparatus Expired - Lifetime US3044819A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR827906A FR1266502A (fr) 1960-05-21 1960-05-21 Appareil de préhension à bras articulés, appliqué en particulier à la manutention de tôles
FR836482A FR1272990A (fr) 1960-08-23 1960-08-23 Appareil de préhension à bras articulés mobiles, pour la manutention de fardeaux tels que des tôles

Publications (1)

Publication Number Publication Date
US3044819A true US3044819A (en) 1962-07-17

Family

ID=26186119

Family Applications (1)

Application Number Title Priority Date Filing Date
US111233A Expired - Lifetime US3044819A (en) 1960-05-21 1961-05-19 Sheet-metal handling apparatus

Country Status (5)

Country Link
US (1) US3044819A (enrdf_load_stackoverflow)
BE (1) BE603305A (enrdf_load_stackoverflow)
CH (1) CH366944A (enrdf_load_stackoverflow)
GB (1) GB915611A (enrdf_load_stackoverflow)
NL (1) NL264796A (enrdf_load_stackoverflow)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3154339A (en) * 1962-09-14 1964-10-27 Louis G Kaplan Articulated lifter with substantially constant jaw gripping factor
US3237980A (en) * 1964-04-06 1966-03-01 Country Engineering Inc Cylindrical object clamping devices
US3796332A (en) * 1971-08-23 1974-03-12 T Kawamura Cargo handling equipment by gripping and suspending materials
JPS49122564U (enrdf_load_stackoverflow) * 1973-02-19 1974-10-21
JPS5066368U (enrdf_load_stackoverflow) * 1973-10-22 1975-06-14
US4678220A (en) * 1986-02-14 1987-07-07 Gabriel Edwin Z Shovel-like coupling devices with automatic material handling features
US5184860A (en) * 1990-03-12 1993-02-09 Potain (Societe Anonyme) Motorized remote-controlled load gripping device
US5403114A (en) * 1994-06-10 1995-04-04 James; Danny L. Barrier module lifting clamp
US6000904A (en) * 1998-02-20 1999-12-14 Schluesselbauer; Johann Apparatus for storing and conveying standing, tubular workpieces made of concrete
US6138846A (en) * 1998-03-17 2000-10-31 Mi-Jack Products, Inc. Adjustable expansible load lifting device
US6592320B1 (en) 2001-02-22 2003-07-15 Diamond Tank Rentals, Inc Quick connect/disconnect tank lifting brace and method of use
US20040115035A1 (en) * 2002-12-04 2004-06-17 Edward Tygard Clamping apparatus
US7134701B1 (en) * 2003-01-03 2006-11-14 Ronning James M Frame for lifting beams and other elongated loads
US20080279666A1 (en) * 2007-05-09 2008-11-13 Petersen Industries, Inc. Apparatus and method for lifting containers
US20110204666A1 (en) * 2008-09-16 2011-08-25 Andreas Kjol Crc tool
NL2005340C2 (nl) * 2010-09-10 2012-03-13 Janssen De Jong Groep B V Grijpinrichting en kraan voorzien van een grijpinrichting.
US9181067B1 (en) * 2014-06-17 2015-11-10 The United States Of America, As Represented By The Secretary Of The Army Suspended payload stability device
CN105819328A (zh) * 2016-05-30 2016-08-03 黄石市华天自动化设备有限公司 一种爪式吊具
US9446933B1 (en) 2012-08-24 2016-09-20 Vacuworx Global, LLC Lifter and method for moving traffic barriers
CN106986266A (zh) * 2016-12-20 2017-07-28 浙江福林国润汽车零部件有限公司 一种发动机总成转运装置
CN113998572A (zh) * 2021-11-19 2022-02-01 许继集团有限公司 一种变压器吊装机构
CN115432589A (zh) * 2022-10-27 2022-12-06 临沂杰航海洋科技有限责任公司 一种可稳定搬运的起重机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1832409A (en) * 1929-08-10 1931-11-17 Mueller Hans Battery carrier
US2229800A (en) * 1939-03-20 1941-01-28 William T Dean Tongs
US2284238A (en) * 1941-09-16 1942-05-26 John W Todd Hoist grab
US2355086A (en) * 1943-10-27 1944-08-08 Walter B Lang Marine salvage device
US2732248A (en) * 1953-05-27 1956-01-24 Lifting device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1832409A (en) * 1929-08-10 1931-11-17 Mueller Hans Battery carrier
US2229800A (en) * 1939-03-20 1941-01-28 William T Dean Tongs
US2284238A (en) * 1941-09-16 1942-05-26 John W Todd Hoist grab
US2355086A (en) * 1943-10-27 1944-08-08 Walter B Lang Marine salvage device
US2732248A (en) * 1953-05-27 1956-01-24 Lifting device

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3154339A (en) * 1962-09-14 1964-10-27 Louis G Kaplan Articulated lifter with substantially constant jaw gripping factor
US3237980A (en) * 1964-04-06 1966-03-01 Country Engineering Inc Cylindrical object clamping devices
US3796332A (en) * 1971-08-23 1974-03-12 T Kawamura Cargo handling equipment by gripping and suspending materials
JPS49122564U (enrdf_load_stackoverflow) * 1973-02-19 1974-10-21
JPS5066368U (enrdf_load_stackoverflow) * 1973-10-22 1975-06-14
US4678220A (en) * 1986-02-14 1987-07-07 Gabriel Edwin Z Shovel-like coupling devices with automatic material handling features
US5184860A (en) * 1990-03-12 1993-02-09 Potain (Societe Anonyme) Motorized remote-controlled load gripping device
US5403114A (en) * 1994-06-10 1995-04-04 James; Danny L. Barrier module lifting clamp
US6000904A (en) * 1998-02-20 1999-12-14 Schluesselbauer; Johann Apparatus for storing and conveying standing, tubular workpieces made of concrete
US6138846A (en) * 1998-03-17 2000-10-31 Mi-Jack Products, Inc. Adjustable expansible load lifting device
US6592320B1 (en) 2001-02-22 2003-07-15 Diamond Tank Rentals, Inc Quick connect/disconnect tank lifting brace and method of use
US6749392B1 (en) 2001-02-22 2004-06-15 Ben A. Adams Quick connect/disconnect tank lifting brace and method of use
US20100117390A1 (en) * 2002-12-04 2010-05-13 Tygard Machine & Manufacturing Company Clamping apparatus
US8142131B2 (en) 2002-12-04 2012-03-27 Tygard Machine & Manufacturing Company Clamping apparatus
US7537427B2 (en) * 2002-12-04 2009-05-26 Tygard Machine & Manufacturing Company Clamping apparatus
US20040115035A1 (en) * 2002-12-04 2004-06-17 Edward Tygard Clamping apparatus
US20120280522A1 (en) * 2002-12-04 2012-11-08 Tygard Machine & Manufacturing Company Clamping apparatus
US7134701B1 (en) * 2003-01-03 2006-11-14 Ronning James M Frame for lifting beams and other elongated loads
US20080279666A1 (en) * 2007-05-09 2008-11-13 Petersen Industries, Inc. Apparatus and method for lifting containers
US8079799B2 (en) * 2007-05-09 2011-12-20 Petersen Industries, Inc Apparatus and method for lifting containers
US8328258B2 (en) * 2008-09-16 2012-12-11 Rolls-Royce Marine As Gripping tool for a crane
US20110204666A1 (en) * 2008-09-16 2011-08-25 Andreas Kjol Crc tool
NL2005340C2 (nl) * 2010-09-10 2012-03-13 Janssen De Jong Groep B V Grijpinrichting en kraan voorzien van een grijpinrichting.
US9932207B2 (en) 2012-08-24 2018-04-03 Vacuworx Global, LLC Lifter and method for moving traffic barriers
US10336583B2 (en) 2012-08-24 2019-07-02 Vacuworx Global, LLC Lifter and method for moving traffic barriers
US9446933B1 (en) 2012-08-24 2016-09-20 Vacuworx Global, LLC Lifter and method for moving traffic barriers
US9181067B1 (en) * 2014-06-17 2015-11-10 The United States Of America, As Represented By The Secretary Of The Army Suspended payload stability device
CN105819328A (zh) * 2016-05-30 2016-08-03 黄石市华天自动化设备有限公司 一种爪式吊具
CN106986266A (zh) * 2016-12-20 2017-07-28 浙江福林国润汽车零部件有限公司 一种发动机总成转运装置
CN106986266B (zh) * 2016-12-20 2018-07-31 浙江福林国润汽车零部件有限公司 一种发动机总成转运装置
CN113998572A (zh) * 2021-11-19 2022-02-01 许继集团有限公司 一种变压器吊装机构
CN113998572B (zh) * 2021-11-19 2024-05-10 许继集团有限公司 一种变压器吊装机构
CN115432589A (zh) * 2022-10-27 2022-12-06 临沂杰航海洋科技有限责任公司 一种可稳定搬运的起重机
CN115432589B (zh) * 2022-10-27 2023-04-07 临沂智喆电子信息科技有限责任公司 一种可稳定搬运的起重机

Also Published As

Publication number Publication date
GB915611A (en) 1963-01-16
CH366944A (fr) 1963-01-31
NL264796A (enrdf_load_stackoverflow)
BE603305A (fr) 1961-09-01

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