US3854406A - Motorized suspended trolley - Google Patents

Motorized suspended trolley Download PDF

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Publication number
US3854406A
US3854406A US00217069A US21706972A US3854406A US 3854406 A US3854406 A US 3854406A US 00217069 A US00217069 A US 00217069A US 21706972 A US21706972 A US 21706972A US 3854406 A US3854406 A US 3854406A
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Prior art keywords
column
drive
wheels
trolley
slidable
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Expired - Lifetime
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US00217069A
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English (en)
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M Monne
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Individual
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C13/00—Locomotives or motor railcars characterised by their application to special systems or purposes
    • B61C13/04—Locomotives or motor railcars characterised by their application to special systems or purposes for elevated railways with rigid rails

Definitions

  • the present invention relates to a trolly or traction device for a suspended transportation or monorail system.
  • One previously proposed monorail traction device includes an electric motor and serves to move along the rail a pulley-block or a series of balancing devices supported on rollers carried by the rail. In the case ofdamage or accident, it is necessary to be able to disconnect the traction device very quickly to separate it from the other parts of the conveyor thus formed.
  • the traction device comprises a single tired wheel mounted on a small bridge or bissel suspended from two trains of rollers, disengagement being obtained by lowering one of the hooking points of the bridge by means of a cam device. However the wheel is mounted in the middle of the bridge and moves downwardly by a distance which is equal to half the throw of the cam whereby disconnection is not readily effected.
  • the bissel device incorporating a single central wheel cannot be used with monorails having curved portions with a relatively small radius of curvature.
  • the center of the chord may lie outside the circumferential surface of the tire so that the traction device increasingly leans or oscillates, particularly if there are inflexions in the curved portions.
  • the weight of the previously proposed device is relatively high, as a result of which, to replace it in running position after disconnection, an effort is required which exceeds the average strength of a man acting either directly upon the chassis of the device, or through a control rod system.
  • a trolley or traction device for a load suspended from a flanged monorail, roller means movable along the rail, column means suspended directly from the roller means, supporting means slidable along the column means, symmetrically arranged tired drive wheels carried by the supporting means, resilient means operative to bias said supporting means upwardly whereby to urge the drive, wheels into engagement with a rail opposite the roller means, means for rendering said resilient means inoperative, mounting means carried by the column means, drive motor means mounted on said mounting means, and transmission means coupling the drive motor means to the drive wheels.
  • device tired wheels are arranged to contact flanges of the rail and are kinetically connected with a motor, and a column supports the motor via a bracket and is suspended directly from a roller rolling-axle, which rollers bear upon the flanges of the rail, said column supporting, through a collar, the axles of the two tired wheels which are pressed against the flanges and opposite the rollers by at least one spring.
  • the bracket supports the motor in front of the axles of the tired wheels, and also carries reduction gearing and drive pinions, the pinions being connected to the said axles by flexible transmission means which can accompany the axes of the axles in their sliding movement along the column.
  • the bracket is located in relation to the column so that in the engaged condition of the wheels, the center of the wheels is higher than the drive pinion so that the transmission means is taut, while in the disengaged condition, the transmission means will be relatively unstressed.
  • FIG. 1 is a side elevation of a traction device in accordance with the invention
  • FIG. 2 is a fragmentary front elevation to an enlarged scale of the device.
  • FIG. 3 is a fragmentary side elevation, to an enlarged scale, of a modified form of the device.
  • a traction device comprises a column 3 suspended from the center of a roller train 2 movable along spaced flanges 1a and lb of a rail 1.
  • a collar 4 slidable along the column 3 acts as a support for the axles 6 of two wheels 7 having solid or pneumatic tires.
  • the axles 6 also mount, between the wheels 7, a pair of sprocket wheels 8 engaging respective drive chains 9.
  • the collar 4 is resiliently biased upwardly by a spring 10 which surrounds the column 3 and abuts against a seat in the form of an annular disc 11.
  • the disc 11 is supported on an abutment 12 in the form of a removable cotter pin passing transversely through an aperture in the column 3.
  • the disc 11 comprises a number of radial projections 13, for example six projections 13, enabling the disc 11 to be grasped more easily by hand.
  • the pin 12 can be withdrawn from the aperture by a flexible link 14 passing over a pulley on a bracket 16 and carrying a handle 15.
  • the bracket 16 is fixed to the column 3 by a collar device 17.
  • the construction of the collar device 17 is known and will not be described in greater detail.
  • An arm of the bracket 16 defines a platform 18 which mounts a drive motor assembly substantially at the height of the collar 4.
  • the drive motor assembly com prises a motor 10 and a speed reducer 20 which has two output drive sprockets 21, each sprocket 21 driving a respective chain 9.
  • the drive transmission system can alternatively comprise drive belts disposed around pulleys on the axles 6.
  • the wheels 7 are inclined and converge upwardly towards the center of the rail, this inclination having been exaggerated in FIG. 2 for the sake of clarity.
  • This 37 slantingor cambering of the wheels tends to counteract the tendency of the vehicle to tack.
  • the wheels 7 can converge in the direction of movement to improve stability.
  • the axis of the roller train 2 and of the column 3 can be staggered to the rear of the point of intersection of the axis of the axles 6.
  • the pin 12 is withdrawn from the aperture in the column 3 and the spring 10 forces the disc 11 downwardly along the column 3 into contact with stop pins 22 mounted on the column 3.
  • the wheels 17 and their associated fittings likewise move downwardly out of engagement with the rail 1 and are spaced from the underside of the rail by two or three centimetres. Re-engagement is effected by raising manually the disc 13 and replacing the cotterpin 12.
  • the device shown in FIG. 3 is mounted between two vertical parallel plates 23 supported by the base of the bracket 16.
  • Right-angle cranked levers are pivotal about respective axes symmetrically arranged on opposite sides of the column 3.
  • one arm 24 constitutes a catch engaging the underside edge of a spring seat 13 (equivalent to the disc 11 of the first embodiment) and has a nose portion with an undercut inclined portion 26; the other arm 25 is forked and embraces the column 3.
  • the adjacent ends 27 of the arms 25 of the two levers are parallel and engage, the assembly thus forming a knuckle-joint held locked by the pressure of the spring on the seat 13.
  • Each of the arms is biased by a spring 28 attached to one of the plates 23 to prevent excessive outwards pivotal movement of the levers.
  • a lever 30 having forked end portions is pivotal on a transverse shaft 29, the forked end portions engaging pins 32 carried by a ring 31 slidable along the column 3.
  • the lever 30 suitable carries an actuating handle 35.
  • the lever 30 is pivoted so that its forked end portions raise the ring 31 which strikes the knuckle-joint and opens it so as to release the levers 24 from the seat 13.
  • the latter descends under the bias of the spring 10 and the wheels likewise descent.
  • the seat 13 lies between the inclined portions 26 of the arms 24 and holds the arms 24 apart against the bias of the springs 28; downwards movement of the seat 13 is limited by stop pins 22 on the column 3.
  • Reengagement of the wheels can be effected by raising manually the seat 13.
  • the column 3 can be hollow to receive a slidable piston 33 provided with a handle 34.
  • the piston 33 is provided with two or three pins 36 passing through slots in the wall of the column 3, the pins 36 being engageable with the seat 13; thus by raising the piston 33 the seat 13 will also be raised. in this manner raising of the seat 13 is facilitated.
  • the device described can be utilized with various types of suspended monorail vehicles and tracks.
  • the tracks can be in the form of an enveloping rail with a central slit and internal flanges (as particularly described) or in the form of a profiled rail with external flanges.
  • the device is advantageous in that the tired wheels engage the rail directly opposite to the points of contact between the rollers and the rail, and that the disengagement action is exerted only on the wheels and their associated parts.
  • the adherence and the stability of the device are improved in relation to the previously proposed device and are relatively constant, whatever the outline of the monorail may be; moreover the disengagement assembly is very easy to handle both for disconnection and the re-connection to the wheels. Accordingly, the device described can be used with relatively large monorail vehicles.
  • a trolley which comprises:
  • roller means movable on a first side of said at least one flanged track portion
  • drive wheel means selectively supported in resilient movable engagement with a second side of said at least one flanged track portion substantially opposite said roller means and operative to move therealong when rotated;
  • means for operatively supporting said drive wheel means in said resilient movable engagement with said second side including i. column means connected to said roller means, ii. slidable means mounted on said column means for slidable movement therealong and carrying said drive wheel means, and
  • resilient means for urging said slidable means along said column means for said resilient movable engagement of said drive wheel means with said second side, including means operative to selectively permit non-resilient movement of said slidable means along said column means.
  • a trolloy as claimed in claim 1, and wherein said drive wheel means includes at least two wheels and said supporting means further comprises axle means for securing said at least two drive wheels to said supporting means cambered with respect to said second side.
  • a trolley as claimed in claim 1 wherein said resilient means comprises:
  • first spring means interposed between said slidable means and said seat means
  • abutment means for engaging said seat means to prevent movement thereof in one direction along said column means operative to bias said first spring means for said urging of said slidable means along said column means.
  • a trolley as claimed in claim 3, and wherein said abutment means is releasable for selectively permitting said non-resilient movement of said slidable means, and which comprises first pin means mounted on said column means and flexible linkage means actuable to withdraw said first pin means, and wherein said seat means comprises a plurality of projections.
  • a trolley as claimed in claim 3 wherein said abutment means is releasable for selectively permitting said non-resilient movement of said slidable means, and which comprises:
  • lever means operatively connected with said column means to form a knuckle-joint, said lever means including arms operative to engage said seat means;
  • pivotal fork means on said column means said pivotal fork means being operative when pivoted to move said arms outwardly away from said column means against the bias of said second spring means.
  • a trolley as claimed in claim 5 and wherein said column means is tubular and comprises longitudinally extending slots therein, said trolley further comprising piston means slidable in said column means and second pin means carried by said piston means projecting outwardly through said slots and operative to engage and move said seat means when said piston means is moved upwardly along said column means.
  • a trolley as claimed in claim 1 wherein said trolley further comprises:
  • a trolley as claimed in claim 7, and wherein said drive wheel means includes at least two wheels and said supporting means further comprises axle means for securing said at least two wheels to said supporting means and wherein said transmission means comprises sprocket means rotatable with said axle means, and drive chain means entrained around said sprocket means.
  • a trolley as claimed in claim 7, and wherein said drive wheel means includes at least two wheels and said supporting means further comprises axle means for securing said at least two wheels to said supporting means and wherein said transmission means comprises pulley means rotatable with said axle means, and drive belt means extending around said pulley means.
  • a trolley as claimed in claim 7, and wherein said transmission means further comprises speed reducing means driven by said drive motor means, said speed reducing means being mounted on said mounting means and including output drive means, and wherein said drive wheel means includes at least two wheels and said support means further comprises axle means for securing said at least two wheels to said supporting means and wherein said transmission means comprises a flexible drive transmission member interposed between said output drive means and said axle means, said mounting means being so positioned that when said drive wheels are resiliently engaged with said second side, the center of said drive wheels is located above said output drive means and said flexible drive transmission member is taut, and when said drive wheels are moved away from said second side, said flexible drive transmission member is relatively unstressed.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
US00217069A 1971-01-13 1972-01-11 Motorized suspended trolley Expired - Lifetime US3854406A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7101562A FR2122068A5 (enExample) 1971-01-13 1971-01-13

Publications (1)

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US3854406A true US3854406A (en) 1974-12-17

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US00217069A Expired - Lifetime US3854406A (en) 1971-01-13 1972-01-11 Motorized suspended trolley

Country Status (8)

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US (1) US3854406A (enExample)
CH (1) CH546165A (enExample)
DE (1) DE2201489C3 (enExample)
ES (1) ES398746A1 (enExample)
FR (1) FR2122068A5 (enExample)
GB (1) GB1334321A (enExample)
IT (1) IT948849B (enExample)
SU (1) SU384220A3 (enExample)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4125908A (en) * 1977-05-18 1978-11-21 Vail Dottie J Invalid transfer lift
WO1979000662A1 (en) * 1978-02-27 1979-09-06 E Toder Canted wheels carrier
US4172423A (en) * 1976-12-10 1979-10-30 Maxime Monne Tracked vehicle systems
US4318346A (en) * 1979-11-16 1982-03-09 Sessum Charles E Biased traveling crane drive
US4362108A (en) * 1979-05-16 1982-12-07 Erwin Jenkner Conveyor system
US4458675A (en) * 1981-01-06 1984-07-10 Combi Co., Ltd. Roller type finger-pressure apparatus
US4823705A (en) * 1984-07-26 1989-04-25 Tomiichi Fukuda Golf cart system with embedded rail having inclined surfaces
US4841871A (en) * 1984-04-19 1989-06-27 Leibowitz Martin Nick Modular transportation system with aerodynamic lift augmented traction vehicles
US5165277A (en) * 1990-08-29 1992-11-24 Measurex Corporation System and process for determining properties of a moving sheet of material
US20150238786A1 (en) * 2009-07-10 2015-08-27 Transol Corporation Anchor trolley and fall arrest system and method implementing the same
US20160297617A1 (en) * 2015-04-09 2016-10-13 Scot Christopher Kempf End Of Travel Arrangement
WO2016167710A1 (en) * 2015-04-13 2016-10-20 Brunkeberg Systems Ab Conveyor guide track for facade elements and method for connecting guide tracks

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2618516C2 (de) * 1976-04-28 1978-05-11 Demag Ag, 4100 Duisburg Laufkatze
DE3309377C2 (de) * 1983-03-16 1986-10-02 Thyssen-M.A.N. Aufzüge GmbH, 7303 Neuhausen Schienengebundener Förderwagen für den Transport von Akten od. dgl. mit einer drehbar gelagerten Antriebsgruppe
CN107891871B (zh) * 2017-11-10 2023-07-07 中唐空铁集团有限公司 悬挂式空中单轨交通系统用连接机构
WO2025172918A1 (en) * 2024-02-15 2025-08-21 Ev Podcars Vehicle motion units for suspended vehicles

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US574316A (en) * 1896-12-29 Wilhelm feldmanf
DE432859C (de) * 1924-11-28 1926-08-14 A T G Allg Transportanlagen Ge Antrieb fuer Haengebahnfahrzeuge mittels Reibungsrolle
US2247787A (en) * 1939-07-29 1941-07-01 Bowling Patents Man Corp Suction lifter
GB1008934A (en) * 1963-05-21 1965-11-03 P I M Engineering Company Hitc Improvements in or relating to conveyor systems and carriages therefor
US3568605A (en) * 1968-01-24 1971-03-09 Projects General Of America Suspended monorail system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US574316A (en) * 1896-12-29 Wilhelm feldmanf
DE432859C (de) * 1924-11-28 1926-08-14 A T G Allg Transportanlagen Ge Antrieb fuer Haengebahnfahrzeuge mittels Reibungsrolle
US2247787A (en) * 1939-07-29 1941-07-01 Bowling Patents Man Corp Suction lifter
GB1008934A (en) * 1963-05-21 1965-11-03 P I M Engineering Company Hitc Improvements in or relating to conveyor systems and carriages therefor
US3568605A (en) * 1968-01-24 1971-03-09 Projects General Of America Suspended monorail system

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4172423A (en) * 1976-12-10 1979-10-30 Maxime Monne Tracked vehicle systems
US4125908A (en) * 1977-05-18 1978-11-21 Vail Dottie J Invalid transfer lift
WO1979000662A1 (en) * 1978-02-27 1979-09-06 E Toder Canted wheels carrier
US4229857A (en) * 1978-02-27 1980-10-28 Toder Ellis I Dual wheel carrier for use in conjunction with curtain track
US4362108A (en) * 1979-05-16 1982-12-07 Erwin Jenkner Conveyor system
US4318346A (en) * 1979-11-16 1982-03-09 Sessum Charles E Biased traveling crane drive
US4458675A (en) * 1981-01-06 1984-07-10 Combi Co., Ltd. Roller type finger-pressure apparatus
US4841871A (en) * 1984-04-19 1989-06-27 Leibowitz Martin Nick Modular transportation system with aerodynamic lift augmented traction vehicles
US4823705A (en) * 1984-07-26 1989-04-25 Tomiichi Fukuda Golf cart system with embedded rail having inclined surfaces
US5165277A (en) * 1990-08-29 1992-11-24 Measurex Corporation System and process for determining properties of a moving sheet of material
US20150238786A1 (en) * 2009-07-10 2015-08-27 Transol Corporation Anchor trolley and fall arrest system and method implementing the same
US9901759B2 (en) * 2009-07-10 2018-02-27 Transol Corporation Anchor trolley and fall arrest system and method implementing the same
US10617897B2 (en) 2009-07-10 2020-04-14 Transol Coporation Anchor trolley and fall arrest system and method implementing the same
US20160297617A1 (en) * 2015-04-09 2016-10-13 Scot Christopher Kempf End Of Travel Arrangement
US9919877B2 (en) * 2015-04-09 2018-03-20 Knight Industries End of travel arrangement
WO2016167710A1 (en) * 2015-04-13 2016-10-20 Brunkeberg Systems Ab Conveyor guide track for facade elements and method for connecting guide tracks

Also Published As

Publication number Publication date
DE2201489C3 (de) 1978-09-14
DE2201489B2 (de) 1978-01-19
DE2201489A1 (de) 1972-08-17
FR2122068A5 (enExample) 1972-08-25
GB1334321A (en) 1973-10-17
IT948849B (it) 1973-06-11
ES398746A1 (es) 1974-08-16
SU384220A3 (enExample) 1973-05-23
CH546165A (fr) 1974-02-28

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