US3435915A - Lifting installation - Google Patents

Lifting installation Download PDF

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Publication number
US3435915A
US3435915A US612853A US3435915DA US3435915A US 3435915 A US3435915 A US 3435915A US 612853 A US612853 A US 612853A US 3435915D A US3435915D A US 3435915DA US 3435915 A US3435915 A US 3435915A
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US
United States
Prior art keywords
lever
plate
column
motor
stop
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
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US612853A
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English (en)
Inventor
Julio Villars
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Individual
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Individual
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Publication date
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Publication of US3435915A publication Critical patent/US3435915A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/02—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/02—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars
    • B66F7/025—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars screw operated
    • 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
    • Y10T403/00—Joints and connections
    • Y10T403/70—Interfitted members
    • Y10T403/7047—Radially interposed shim or bushing
    • Y10T403/7051—Wedging or camming
    • Y10T403/7052—Engaged by axial movement

Definitions

  • lifting appliance comprising lifting and lowering means including a plurality of flexible cables which are anchored at the top of corresponding supporting columns dispersed about said moving means and which have vertical runs down the respective columns and around pullies on the moving means to power drive means independent of the moving means and comprising safe failure means operative if a cable becomes slack or breaks, formed by vertical rods on the columns; the horizontal pivoted locking plate loosely threaded on each rod and a support for each locking plate which is mounted on the moving means and normally holds the plate horizontal so that the rod can travel freely therethrough and which tilts when the support is removed by tilting the moving means so as to grip the respective vertical rod.
  • the movable equipment is suspended by columns by means of cables which pass through pulleys fixed to this movable equipment.
  • the traction acting on the corresponding pulley disappears and permits springs to actuate jaws which wedge between the corresponding column and the movable equipment thus immobilizing the latter so that it does not fall.
  • FIGURE 1 shows schematically a lifting installtion having lifting cables.
  • FIGURE 2 shows the safety device of one of the support columns in rest position.
  • FIGURE 3 shows the device of FIGURE 2 after its operation, thus in locked position.
  • FIGURE 4 shows a part of the motor column.
  • FIGURE 5 shows a view in axial section through the motor column.
  • FIGURE 6 shows the pieces of FIGURE 5 after being tripped.
  • the installation shown intended to raise an automobile, comprises, like other known installations, a movable equipment or platform constituted by two cross beams 1 and 2 on which rest two rolling tracks 3 and 4.
  • This movable equipment is disposed between four columns, three of which 5, 6 and 7, called support columns, have for their role to support and to guide it.
  • the fourth column 8, called motor column contains a long screw 12 (FIGURE 5) driven by an electric motor.
  • Three of the corners of the movable equipment bear against the cables 9, 10 and 11 disposed as in FIGURE 1.
  • One end of these cables is fixed at the top of the corresponding support column, while their other end is fixed to the foot of the motor column.
  • the fourth corner bears against the nut 13 engaged on the screw 12.
  • Each support column comprises a safety device operating in case of rupture or of exaggerated elongation of the corresponding cable.
  • the bar 25 hooked freely by its head 26 to the upper plate of the column, passes freely through the circular hole 30', preferably having sharp edges, of the plate 27.
  • This plate can pivot freely about an axle 28 hearing on the two vertical plates 26 which terminate the cross beam 2.
  • the hole 30 is formed in the bottom of a clearance 31 of the plate 27 so as to permit the plate to turn by an angle suflicient with respect to the horizontal so that the edges of the hole 30 can bear strongly against the bar 25.
  • a stop 29 permits the plate 27 to remain normally horizontal, that is to say perpendicular to the bar 25.
  • a second stop 32 also fixed to the vertical plates 26 is located at a small distance from the bar 25. It is seen that the cross beam and the pieces which carry the latter can freely be displaced vertically along the bar 25, the latter presenting no obstacle to their movement.
  • the operation of this device is the following. Since the cross beam 2 is inclined, the stop 32 presses against the bar 25, pushes the latter against the edge of the hole 30, causes the plate to rock and the edges of this hole 30 dig themselves into the bar 25 thus connecting the latter rigidly with the end of the cross beam which is thus maintained in place and can no longer descend in spite of the failure of this cable.
  • Another constructive formula consists in replacing the pivoting plate 27 by a plate forming a body with the plates 26, and the stop 32 by another plate also fixed, the two being equipped with conical holes having very sharp edges.
  • any inclination of the cross beam causes a tightening of the bar 25 between the two holes whose edges dig into the bar with the same effect as here above.
  • the holes of the plate 27, instead of being conical, can have another profile, for example can be cylindrical or formed obliquely so as to obtain an edge having an acute angle with the bar 25.
  • the safety device represented in FIGURES 2 and 3 or its variants are completed by a tripping device for stopping the driving motor of the screw 12 and which we will describe here below.
  • the driving box 14 equipped with the hand lever 15 permits the operation to be controlled, in one direction or the other, of the motor driving the screw 12.
  • the movable equipment rises; it descends by pushing the lever towards the bottom.
  • the motor stops when the lever is horizontal.
  • a second lever 24 placed at the other end of the axle of the lever 15 is articulated to the end of the bent rod 21 on which are located two stops 22 and 23.
  • the rod 21 passes freely through a hole of the projection 20 rigid with the cross beam as well as through a hole formed at the end of the lever 18 equipped with a counter-weight 19 and which can freely turn around the axle 33 rigid with the nut 13. Normally the counter-weight 19 maintains the lever 18 borne against the projection 20.
  • the lower end of the rod 21 is articulated at 36 with the lever 34 which can freely pivot about the axle 36 (FIGURE 5).
  • Its vertical branch 37 can oscillate freely between the stops 38 and 39 of the tripper 40 and can follow the movements of the lever 15 of the box 14.
  • the tripper 40 can pivot freely about the axle 41 but it is maintained in place by the thrust of the rod 42 on which bears the spring 43.
  • each of the suspension cables 9, 10 and 11 is provided with a tip 44 hooked to a stud hole 45 of the column 8.
  • a spring 46 bears horizontally on this tip which the traction of the cable maintains in position.
  • the nut 13 is provided with two pins of which one 47 is visible in FIGURE 5.
  • the cross beam 1 is completed by two terminal plates 16 and 17 each provided with a notch resting on the pins of the nut 13. If during the upward travel of the movable equipment any obstacle whatsoever impedes the end of the cross beam 1 from following the nut 13, the pins of this latter separate from the notches of the plates 16 and 17.
  • the centre of pivoting 33 of the lever 18 descends with respect to the projection 20, the lever 18 becomes inclined, the edges of the hole with which it is provided and through which passes the rod 21 grip the latter which is driven towards the bottom and causes the stop of the motor.
  • the figure shows that the switch can nevertheless be put in operating position for the opposite direction in order to permit the disengagement of the obstacle met.
  • horizontal moving means including a pair of cross beams each provided at each end with a pair of vertical, spaced, terminal plates: four columns dispersed about said moving means, three of said columns serving to guide and support said moving means, said fourth column having therein a driven member secured to said terminal plates of one of said cross beams, pulleys on said moving means and flexible cables on said pulleys for raising and lowering said moving means; one end of said cables being secured at the top of a corresponding support column and the other end thereof being secured to the foot of said fourth column; each of said support columns having a safety device including an elongated member suspended to said column,
  • a normally horizontal tipping plate freely pivoted on said terminal plates and being free of spring urging; said tipping plate having a cylindrical recess directed towards said moving means with a central opening smaller than said recess and receiving therein said elongated member, said opening being of a size such as to allow said plate to tilt sufiiciently with respect to the horizontal so that the edges of the said opening can directly jam and hold said elongated member and hence said platform when said cross beam becomes inclined relative to said column because of abnormal stretching or rupture of said cables.
  • Lifting appliance having a motor for driving said driven member and means for stopping said motor, said means comprising a first lever pivoted on an axle for controlling the direction of movement of said motor, a second lever pivoted on said axle, said second lever being pivoted on the end of a bent member, said bent member carrying upper and lower stops, a projection on said platform, said projection having an opening through which passes said rod and adapted to contact said stops when said platform has reached the end of its upward and downward movement, and thereby bring said first lever into stop position for said motor.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Types And Forms Of Lifts (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Package Frames And Binding Bands (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
US612853A 1966-05-05 1967-01-31 Lifting installation Expired - Lifetime US3435915A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH655266A CH459506A (fr) 1966-05-05 1966-05-05 Installation de levage

Publications (1)

Publication Number Publication Date
US3435915A true US3435915A (en) 1969-04-01

Family

ID=4311382

Family Applications (1)

Application Number Title Priority Date Filing Date
US612853A Expired - Lifetime US3435915A (en) 1966-05-05 1967-01-31 Lifting installation

Country Status (7)

Country Link
US (1) US3435915A (fr)
CH (1) CH459506A (fr)
DE (1) DE1282274B (fr)
ES (1) ES336381A1 (fr)
FR (1) FR1508529A (fr)
GB (1) GB1179152A (fr)
NL (1) NL6701724A (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4173268A (en) * 1976-10-29 1979-11-06 Hans Nussbaum Hoist mechanism
US4635491A (en) * 1983-08-10 1987-01-13 Fuji Electric Co., Ltd. Fail-safe motor-driven cylinder for lifting apparatus
US4741661A (en) * 1986-09-22 1988-05-03 Sherman & Reilly Inc. Wheel lifting and towing apparatus
US4926973A (en) * 1988-12-09 1990-05-22 Smith Dave W Mobile wheelchair lift and brakes therefore
US20080023430A1 (en) * 2004-05-21 2008-01-31 Kjell Andreasson Lifter Provided with a Safety Stop
US20110094830A1 (en) * 2009-10-26 2011-04-28 Lund Kurt O'ferrall Vehicle and object portable lift
CN102556890A (zh) * 2012-02-06 2012-07-11 谭锦泉 自升钢井架物料提升机安装平台及其安装方法
CN103863970A (zh) * 2014-04-01 2014-06-18 东莞市良合机械设备有限公司 整平切片机送料升降架
CN104150397A (zh) * 2014-07-17 2014-11-19 刘纯良 一种升降架
CN104444930A (zh) * 2014-12-10 2015-03-25 嘉善天慧光电科技有限公司 可调式送料装置
US10287792B2 (en) * 2015-03-23 2019-05-14 Van Stokes, Sr. Suspension lift
CN113620199A (zh) * 2021-08-05 2021-11-09 李志善 一种汽车检修的承载支撑调节装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL193188C (nl) * 1990-08-29 1999-02-02 Stertil Bv Beveiliging voor een auto-hefbrug.

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1352172A (en) * 1920-01-15 1920-09-07 Brandon Jarvies Daniel Drill-retriever
US1505220A (en) * 1923-10-13 1924-08-19 Chicago Apparatus Company Spring clamp
US2483828A (en) * 1946-06-06 1949-10-04 Swindell Dressler Corp Emergency stop mechanism
GB724512A (en) * 1950-11-15 1955-02-23 Joseph Bradbury & Sons Ltd Improvements in and relating to platform lifting appliances
DE1123451B (de) * 1958-02-11 1962-02-08 Arie Adrianus De Koning Absturzsicherung fuer Hebebuehnen mit an Standsaeulen aufgehaengter Plattform
FR1303096A (fr) * 1961-07-26 1962-09-07 Tecalemit Sa Dispositif de sécurité pour engin de levage
US3291260A (en) * 1964-06-26 1966-12-13 Tecalemit Engineering Vehicle lifts or hoists

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1352172A (en) * 1920-01-15 1920-09-07 Brandon Jarvies Daniel Drill-retriever
US1505220A (en) * 1923-10-13 1924-08-19 Chicago Apparatus Company Spring clamp
US2483828A (en) * 1946-06-06 1949-10-04 Swindell Dressler Corp Emergency stop mechanism
GB724512A (en) * 1950-11-15 1955-02-23 Joseph Bradbury & Sons Ltd Improvements in and relating to platform lifting appliances
DE1123451B (de) * 1958-02-11 1962-02-08 Arie Adrianus De Koning Absturzsicherung fuer Hebebuehnen mit an Standsaeulen aufgehaengter Plattform
FR1303096A (fr) * 1961-07-26 1962-09-07 Tecalemit Sa Dispositif de sécurité pour engin de levage
US3291260A (en) * 1964-06-26 1966-12-13 Tecalemit Engineering Vehicle lifts or hoists

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4173268A (en) * 1976-10-29 1979-11-06 Hans Nussbaum Hoist mechanism
US4635491A (en) * 1983-08-10 1987-01-13 Fuji Electric Co., Ltd. Fail-safe motor-driven cylinder for lifting apparatus
US4741661A (en) * 1986-09-22 1988-05-03 Sherman & Reilly Inc. Wheel lifting and towing apparatus
US4926973A (en) * 1988-12-09 1990-05-22 Smith Dave W Mobile wheelchair lift and brakes therefore
US20080023430A1 (en) * 2004-05-21 2008-01-31 Kjell Andreasson Lifter Provided with a Safety Stop
US20110094830A1 (en) * 2009-10-26 2011-04-28 Lund Kurt O'ferrall Vehicle and object portable lift
CN102556890A (zh) * 2012-02-06 2012-07-11 谭锦泉 自升钢井架物料提升机安装平台及其安装方法
CN102556890B (zh) * 2012-02-06 2015-06-10 谭锦泉 自升钢井架物料提升机安装平台及其安装方法
CN103863970A (zh) * 2014-04-01 2014-06-18 东莞市良合机械设备有限公司 整平切片机送料升降架
CN104150397A (zh) * 2014-07-17 2014-11-19 刘纯良 一种升降架
CN104150397B (zh) * 2014-07-17 2016-08-24 刘纯良 一种升降架
CN104444930A (zh) * 2014-12-10 2015-03-25 嘉善天慧光电科技有限公司 可调式送料装置
US10287792B2 (en) * 2015-03-23 2019-05-14 Van Stokes, Sr. Suspension lift
CN113620199A (zh) * 2021-08-05 2021-11-09 李志善 一种汽车检修的承载支撑调节装置
CN113620199B (zh) * 2021-08-05 2023-12-29 湖南德远新能源汽车集团有限公司 一种汽车检修的承载支撑调节装置

Also Published As

Publication number Publication date
ES336381A1 (es) 1967-12-16
CH459506A (fr) 1968-07-15
FR1508529A (fr) 1968-01-05
GB1179152A (en) 1970-01-28
NL6701724A (fr) 1967-11-06
DE1282274B (de) 1968-11-07

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