US3796285A - A load raising and lowering - Google Patents

A load raising and lowering Download PDF

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Publication number
US3796285A
US3796285A US00269464A US3796285DA US3796285A US 3796285 A US3796285 A US 3796285A US 00269464 A US00269464 A US 00269464A US 3796285D A US3796285D A US 3796285DA US 3796285 A US3796285 A US 3796285A
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US
United States
Prior art keywords
chains
load
pair
spring
platform
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
US00269464A
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English (en)
Inventor
H Grebenstein
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.)
Oehler Wyhlen Lagertechnik AG
Original Assignee
Oehler Wyhlen Lagertechnik AG
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 Oehler Wyhlen Lagertechnik AG filed Critical Oehler Wyhlen Lagertechnik AG
Application granted granted Critical
Publication of US3796285A publication Critical patent/US3796285A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G1/00—Storing articles, individually or in orderly arrangement, in warehouses or magazines
    • B65G1/02—Storage devices
    • B65G1/04—Storage devices mechanical
    • B65G1/0407—Storage devices mechanical using stacker cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/10—Kinds or types of lifts in, or associated with, buildings or other structures paternoster type

Definitions

  • each chain is con nected to the platform.
  • the upper end of each chain is CCll. dimcfly connected to respective sides of the platform.
  • Fieid 12 2O 27 The lower end of each chain is connected, via respective springs, to the respective sides of the platform at [56] References Cited points below those .points to which the respective upper ends of the chains are connected.
  • the spring UNITED STATES PATENTS constants of the springs are at least approximately 657,380 .9/l900 Robinson 187/20 equal to the spring onstants of the respective chains 1,312,089 8/1919 Anderson.... 3,592,294 7/1971 Allen 187/12 1 Claim, 1 Drawing Figure A LOAD RAISING AND LOWERING
  • the present invention relates to a device for the raising and lowering of loads with a load-carrying element displaceable in vertical direction, which is Suspended on either side by means of at least one circulating supporting and guiding element, the direction of which is reversed in the region of the upper and lower extreme position of said load-carrying element, a spring being inserted in each of the support and guiding elements.
  • the load-carrying platform is usually suspended from steel ropes or chains and provided with an automatically-functioning safety apparatus.
  • the object of the present invention is to prevent such oscillations effectively and thus to prevent with certainty a shifting of the load. According to the invention, this is achieved for a device for the raising and lowering of loads of the type mentioned above through the fact that the spring constants of the springs are at least approximately equal to the spring constants of the support and guiding elements.
  • the guiding and driving elements which for example can consist of chains
  • the springs are placed under initial tension by means of the springs.
  • Each of these chains can be passed over a pair of sprockets, whereby the two lower sprockets are advantageously coupled together and connected to a drive unit.
  • the direct connection between chain and load-carrying element is made at the upper end of said element, while the lower end is connected to the chain via the spring.
  • the spring constants of the two springs are chosen to be at least approximately equal to the spring constants of the two chains 4 and 7. Since the chains 4 and 7 do not act as rigid bodies, but rather undergo elastic de formation under stress, this means that, when subjected to a given force, the length of the two springs changes by the same amount as does the length of the two similarly stressed chains 4 and 7. The result of this is that the tension between the suspension points of the load, i.e. between point 11 and the corresponding points on the side wall 3 on the one hand and points 14 and 15 respectively on the periphery of the lower sprockets 6 and 9 is constant and independent of the load on the platform 1. This measure serves to suppress oscillation of the chains with certainty.
  • a further advantage of this arrangement lies in the fact that the drive shaft 13 for the sprockets can be located at the bottom, which considerably reduces the top-heaviness ofa load-handling device which is also movable in the horizontal direc tion. It also affords better accessibility to the drive elements, which means a significant time saving in maintenance and repair work.
  • a load raising and lowering apparatus for moving a load between a lower extreme position and an upper extreme position comprising, in combination:
  • first sprockets arranged for rotation about a first axis above and in the vicinity of the upper extreme position

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Structural Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
US00269464A 1971-07-14 1972-07-06 A load raising and lowering Expired - Lifetime US3796285A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1045071A CH527762A (de) 1971-07-14 1971-07-14 Einrichtung zum Heben und Senken von Lasten

Publications (1)

Publication Number Publication Date
US3796285A true US3796285A (en) 1974-03-12

Family

ID=4363348

Family Applications (1)

Application Number Title Priority Date Filing Date
US00269464A Expired - Lifetime US3796285A (en) 1971-07-14 1972-07-06 A load raising and lowering

Country Status (6)

Country Link
US (1) US3796285A (de)
AT (1) AT318855B (de)
CH (1) CH527762A (de)
FR (1) FR2145584B1 (de)
GB (1) GB1390087A (de)
IT (1) IT962780B (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958116A (en) * 1973-09-27 1976-05-18 Jones Clifton E Luminaire ring lowering mechanism
US4356892A (en) * 1980-04-25 1982-11-02 Amf Incorporated Material dispenser
US5566783A (en) * 1994-02-25 1996-10-22 Koyo Jidoki Co., Ltd. Vehicle parking system
US6062403A (en) * 1996-10-09 2000-05-16 Mi-Jack Products, Inc. Variable elevating cabin
US6527088B1 (en) 2000-12-27 2003-03-04 David W. Fowler Lift apparatus for transporting packages between two or more floors of a building
WO2003072480A1 (de) * 2002-02-28 2003-09-04 System Schultheis Ag Vertikalliftsystem mit mitfahrendem kettenantrieb
US20070114098A1 (en) * 2005-09-29 2007-05-24 Jason Hartley Attic lift system and method
US20110236172A1 (en) * 2008-09-30 2011-09-29 Nidec Sankyo Corporation Card elevating/lowering device, card carrying-out/carrying-in device and card issuing/collecting apparatus
US20150291373A1 (en) * 2014-04-11 2015-10-15 Toa Industries Co., Ltd. Workpieces stacking apparatus
DE202015101604U1 (de) * 2015-03-30 2016-07-01 Duallift Gmbh Aufzug mit Kettenantrieb
CN106477476A (zh) * 2016-12-27 2017-03-08 国网山东省电力公司临沂供电公司 电力验电检修梯

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005020978B4 (de) * 2005-04-29 2008-08-28 Holzma Plattenaufteiltechnik Gmbh Plattenaufteilanlage
CN111846722B (zh) * 2020-07-23 2022-03-11 福建诚壹实业有限公司 一种用于自动化立体冷库的双立柱巷道式堆垛机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US657380A (en) * 1898-02-04 1900-09-04 Otis Elevator Co Elevator.
US1312089A (en) * 1919-08-05 Elevating-truck
US2808126A (en) * 1956-03-26 1957-10-01 Herbert W Harrer Man-lifting apparatus for silos and the like
US3592294A (en) * 1968-12-06 1971-07-13 Marion F Allen Elevator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1312089A (en) * 1919-08-05 Elevating-truck
US657380A (en) * 1898-02-04 1900-09-04 Otis Elevator Co Elevator.
US2808126A (en) * 1956-03-26 1957-10-01 Herbert W Harrer Man-lifting apparatus for silos and the like
US3592294A (en) * 1968-12-06 1971-07-13 Marion F Allen Elevator

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958116A (en) * 1973-09-27 1976-05-18 Jones Clifton E Luminaire ring lowering mechanism
US4356892A (en) * 1980-04-25 1982-11-02 Amf Incorporated Material dispenser
US5566783A (en) * 1994-02-25 1996-10-22 Koyo Jidoki Co., Ltd. Vehicle parking system
US6062403A (en) * 1996-10-09 2000-05-16 Mi-Jack Products, Inc. Variable elevating cabin
US6527088B1 (en) 2000-12-27 2003-03-04 David W. Fowler Lift apparatus for transporting packages between two or more floors of a building
WO2003072480A1 (de) * 2002-02-28 2003-09-04 System Schultheis Ag Vertikalliftsystem mit mitfahrendem kettenantrieb
US20070114098A1 (en) * 2005-09-29 2007-05-24 Jason Hartley Attic lift system and method
US7575098B2 (en) * 2005-09-29 2009-08-18 Jason Hartley Attic lift system and method
US20110236172A1 (en) * 2008-09-30 2011-09-29 Nidec Sankyo Corporation Card elevating/lowering device, card carrying-out/carrying-in device and card issuing/collecting apparatus
US8727694B2 (en) * 2008-09-30 2014-05-20 Nidec Sankyo Corporation Card elevating/lowering device, card carrying-out/carrying-in device and card issuing/collecting apparatus
US20150291373A1 (en) * 2014-04-11 2015-10-15 Toa Industries Co., Ltd. Workpieces stacking apparatus
DE202015101604U1 (de) * 2015-03-30 2016-07-01 Duallift Gmbh Aufzug mit Kettenantrieb
CN106477476A (zh) * 2016-12-27 2017-03-08 国网山东省电力公司临沂供电公司 电力验电检修梯

Also Published As

Publication number Publication date
CH527762A (de) 1972-09-15
IT962780B (it) 1973-12-31
GB1390087A (en) 1975-04-09
FR2145584A1 (de) 1973-02-23
AT318855B (de) 1974-11-25
FR2145584B1 (de) 1976-08-13

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