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WO1988008404A1 - Systeme de transport pour vehicules a roues - Google Patents

Systeme de transport pour vehicules a roues Download PDF

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Publication number
WO1988008404A1
WO1988008404A1 PCT/US1988/001223 US8801223W WO8808404A1 WO 1988008404 A1 WO1988008404 A1 WO 1988008404A1 US 8801223 W US8801223 W US 8801223W WO 8808404 A1 WO8808404 A1 WO 8808404A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
carrier
base frame
ramp
members
Prior art date
Application number
PCT/US1988/001223
Other languages
English (en)
Inventor
Hiroaki Hara
Paul B. Specht
Original Assignee
Tiltrack, Inc.
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 Tiltrack, Inc. filed Critical Tiltrack, Inc.
Publication of WO1988008404A1 publication Critical patent/WO1988008404A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
    • B60P3/06—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying vehicles
    • B60P3/07—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying vehicles for carrying road vehicles

Definitions

  • the present invention relates generally to the transpor wheeled vehicles such as automobiles, and more particularly novel system which enables an optimum number of wheeled vehi to be transported within a conventional semitrailer or mod shipping container and which maximizes payload return by allo transport of alternate cargo when not transporting vehicles.
  • a significant disadvantage of either of the aforementi techniques for transporting wheeled motor vehicles is that, the most part, they are dedicated to the specific function transporting automobiles. With present day economics of the regulated trucking industry dictating cost cutting wher possible, a high premium is placed upon minimizing non-rev producing use of such vehicles, such as empty return trips deadheading. Accordingly, any system or technique transporting motor vehicles which both optimizes the number vehicles which may be transported in a transport vehicle predetermined volume, and enables transport of a substan payload when the transport vehicle is not being utilized transport .motor vehicles would be highly desirable and pro significant economic advantages over the known vehicle trans systems.
  • any such system which utilizes conventi semitrailers, flat-bed trailers , or bulk cargo containers o generally standard size and has haulage capability for carg normal to the trucking industry would further optimize payloa use of the transport vehicles.
  • a standard mach carrier such as a semitrailer, normally employed as a genera cargo carrier could be utilized on an out-trip as a general carg carrier and on the return trip could transport motor vehicles o a mixed combination of cargo and motor vehicles-.
  • Thi arrangement would optimize the payload performance of such carrier.
  • a transport system employing conventional lan transport carriers and overseas shipping containers and which i capable of carrying general cargo as well as wheeled vehicles such as automobiles, would be highly desirable.
  • One of the primary objects of the present invention is t provide a novel system for transporting wheeled vehicles, such a automobiles, which utilizes conventional semitrailer transpor vehicles and/or cargo containers in a manner to optimize payloa use of the transport vehicles both for transporting automobile and general cargo.
  • a more particular object of the present invention is t provide a system for transporting wheeled vehicles which • ⁇ utilize a conventional transport vehicle, such as a semitrailer or bul cargo container, having a generally planar cargo support deck and a plurality of modular wheeled vehicle carriers or dollie each of which is operative to receive and support a wheele vehicle thereon in an inclined position and is movable onto t cargo support deck in a manner to optimize the number of modul vehicle carriers and associated motor vehicles carried by t transport vehicle.
  • a feature of the modular vehicle carriers or dollies accordance with the invention lies in their ability to disassembled and carried in a compact condition or employed pallet support means so as to optimize cargo deck space f transporting non-vehicle cargo during what would otherwise deadheading runs.
  • Another feature of the invention lies in the provision of novel modular wheeled carrier or dolly for use in transporting motor vehicle and which includes a base frame having whee thereon enabling movement along a support surface, and a pair ramp members operative to receive a wheeled motor vehic thereon, the ramp members being manipulatable to position t motor vehicle in an inclined orientation so as to enable plurality of the modular carriers and associated motor vehicl to be carried on the cargo deck of a primary transpo semitrailer or the like with the motor vehicles in partial overlapped relation whereby to optimize the payload carried the transport vehicle.
  • Another feature of the invention lies in the provision guide tracks which may be releasably affixed longitudinally alo a cargo support deck in a conventional transport vehicle, such a semitrailer * or bulk cargo container, and which are cooperati with the modular wheeled carriers or dollies in a manner provide lateral stability to the carriers and associated mot vehicles when positioned in adjacent overlapping relation duri transport.
  • FIG. 1 is a fragmentary elevational view illustrati loading of a motor vehicle onto a modular carrier or dolly f transport in a semitrailer in accordance with the prese invention, a portion of the semitrailer being broken away f clarity;
  • FIG. 2 is a fragmentary vertical sectional view of t forward portion of the transport semitrailer having, mot vehicles and associated modular vehicle carriers loaded there for transport;
  • FIG. 3 is a side elevational view illustrating a modular vehicle carrier or dolly of the type shown in FIGS. 1 and 2, the carrier being illustrated in partially disassembled relation;
  • FIG. 4 is an end elevational view of a modular vehicle carrier or dolly in its transport position, such as taken generally along line 4-4 _of FIG. 2 ;
  • FIG. 5 is a fragmentary sectional view taken generally along line 5-5 of FIG. 3 but on an enlarged scale and with a guide rail added;
  • FIG. 6 is a fragmentary view illustrating a manner of blocking the vehicle carrier against movement;
  • FIG. 7 is an elevational view of an alternative embodiment of a modular vehicle carrier or dolly in accordance with the invention
  • FIG. 8 is an end elevational view of the modular carrier or dolly of FIG. 6, taken along line 8-8 of FIG. 7;
  • FIG. 9 is a side view illustrating disassembly of a ramp member from the modular carrier or dolly of FIG. 76;
  • FIG. 10 is a fragmentary vertical sectional vie illustrating a wheel blocking member as may be used with th ramps on the modular vehicle carriers or dollies of FIGS. 3 an 7;
  • FIG. 11 is a side elevational view illustrating the modula carrier or dolly of FIG. 7 in a compact disassembled condition
  • FIG. 12 is an end elevational view of the disassemble carrier of FIG. 11;
  • FIG. 13 is a plan view of the base frame employed in th modular carrier or dolly of FIG. 7 but with the transverse fram members collapsed to facilitate transportation or storage of th modular carrier;
  • FIG. 14 schematically illustrates a semitrailer or bul cartage container having a plurality of vehicles carried therei along with other cargo to maximize the payload.
  • FIG. 1 illustrates a syste for transporting wheeled vehicles, such as automobiles and th like, in accordance with the present invention.
  • the motor vehicle transport system includes a primary transp vehicle 10 which, in the illustrated embodiment, comprises semitrailer having rearward sets of wheels 12a and 12b adapted for connection at its forward end to a fifth wheel dev of a truck tractor (not shown) in a conventional manner.
  • semitrailer 10 is of standard size for over-the-road transp and has a generally rectangular transport compartment overlyin cargo deck or floor 10a and accessible through a rear open 10b having an effective transverse width of approximately 7 , and of standard height.
  • the forward end of the semitrailer closed by a forward wall 10c.
  • the rear access opening 10b may closed by a pair of vertically hinged doors (not shown) or sliding type door movable within vertical guide channels for along the rear edges of the upstanding sidewalls of the trai and closely parallel to the upper wall lOd there
  • the semitrailer 10 may comprise a genera rectangular modular bulk container of the type adapted for gro transport on over-the-road carriers, or on railcars or as overseas shipment container on cargo ships.
  • the semitrailer 10 wh may be termed the primary transport vehicle, is adapted receive a plurality of modular wheeled carriers or dollies upon which are supported wheeled vehicles in the form automobiles 18. It will be understood that other forms of mo vehicles may also be transported by means of the modular whee carriers 16 and semitrailer 10, it being ' primarily desirable t the motor vehicles be of the generally conventional four wh type.
  • guide means in the f of modular guide track sections are releasably affi longitudinally along the cargo deck 10a to define a pair laterally spaced guide tracks, one of which is indicated at 20 Figs. 1 and 2.
  • the modular wheeled carrier or doll 16 includes a generally rectangular base frame havin longitudinal laterally spaced tubular frame members 24a and 24 which are maintained in coplanar parallel relation by rigi transverse tubular frame members 26a and 26b.
  • the base frame i adapted for movement along a support surface, such as a floo surface or the cargo deck 10a by means of pairs of wheels 28 an 30, respectively.
  • the wheels 28, which may be termed the fron wheels, are supported between bifurcated forward ends of th members 24a and 24b for rotation about axles 32.
  • the rear wheel 30 are each rotatably supported on one end of a radial arm 3 having its opposite end rotatable about a stub shaft 36 fixed t the outer side surface of the corresponding frame member 24a,b i normal relation thereto, as illustrated in Fig. 5.
  • the pivo arms 34 are adapted for over-center movement about thei respective pivot axes 36 between extended positions wherein th pivot arms engage stops 38 on the associated frame members 24a,b as shown in Fig. 3, and retracted positions wherein the pivo arms engage stops 40 on the frame members 24a,b. In this manner the rearward end of the carrier base frame may be selectivel positioned between a raised position relative to the underlyin support surface, as shown in Fig. 3, and a lowered position, a shown in Fig. 2.
  • the base frame of the modular wheeled carrier 16 supports pair of identical elongated ramp members 44 and 46 which overlie respectively, the frame members 24a and 24b and are spaced apar sufficiently to enable the wheels 18a and 18b of a motor vehicl 18 to be driven up the ramps.
  • the ramp members 44 and 46 may b made of suitable strength metal plate or expanded metal or th like having upwardly turned marginal flanges or side walls forme to establish wheel receiving ramps.
  • each ramp member 44 and 46 may be formed of tw sections, although a one-piece ramp may be used if desired.
  • first ramp section, 44a and 46a, respectively, is releasabl mounted on the associated frame member 24a or 24b through transverse pivot pin such as indicated at 48 in Fig. 3.
  • support leg 50 is pivotally connected to the end of each approac ramp 44a and 46a opposite its pivotal connection 48 to associated frame member 24a and 24b.
  • the free end of ea support leg 50 is adapted to seat within and be releasab attached to a generally U-shaped bracket 52 affixed within t associated tubular frame member 24a or 24b so as to maintain t associated approach ramp section in an inclined position relati to horizontal.
  • the support le 50 are made of sufficient length to maintain the ramp sectio 44a and 46a in inclined angular positions of approximately 10- degrees relative to the associated frame members 24a,b.
  • Each ramp 44 and 46 includes a second ramp sectio indicated at 44a and 46b, respectively, which is adapted f releasable hinged connection to the associated ramp section 4 and 46a through transverse connector pins, one of which indicated at 56 in Fig. 3. In this manner, the ramp sections 4 and 46b may be detached from their associated ramp sections 4 and 46a for securing in compact storage positions.
  • the ra sections 44b and 46b each have a variable length support arm strut, indicated at 58a and 58b, respectively, pivotal connected at one end to the underside of the associated ramp a pivotally connected at its opposite end to a pivot bracket adapted to be affixed to and within the associated frame memb 24a or 24b in predetermined relation along its length.
  • ramp sections 44b and 46b connect at 56 to their associated ramp sections 44a and 46a, selecti upward pivotal movement of the ramp sections 44b, 46b may effected by selective lengthening of the struts 58a, b so as obtain a desired angular incline of the ramp sections 44b, 46
  • the ramp sections 44b and 46b are preferab made generally coextensive or coplanar with their associat approach ramp sections 44a and 44b such as illustrated in Fig.
  • the ramp sections 44b and 46b may be raised furth upwardly about their pivot connections 56 to the ramp sectio 44a, 46a by means of an external mechanical jack or suitab fluid pressure ram or the like to establish a desired angle inclination for the associated motor vehicle, such a approximately 25 degrees relative to horizontal.
  • a keeper pin indicated at 62 in Fig. 3, is then inserted through aligne openings in the telescoping portions of the struts 58a, b so a to maintain the ramp sections 44b, 46b in their selected angle of inclination.
  • the struts 58a and 58b may comprise suitable fluid pressure actuators, such as hydraulic o pneumatic cylinders or rams, adapted for connection to a sourc of fluid pressure to enable controlled extension and retractio thereof, thereby enabling selective angular adjustment of th associated ramp sections 44b, 46b.
  • suitable fluid pressure actuators such as hydraulic o pneumatic cylinders or rams
  • cross struts such as indicated at 64a and 64b in Fig. 4, are adapted to hav their opposite ends connected between the frame members 24a, 24 and the ramp sections 44b and 46b so as to establish stabilizing cross bracing.
  • plurality of modular guide rails 20 are releasably affixed i aligned relation longitudinally along the cargo deck surface 10 through suitable means such as screw fasteners 20a (FIG. 5)
  • suitable means such as screw fasteners 20a (FIG. 5)
  • T-shape headed stub shafts an associated cam hold-downs may be employed to releasably secur the guide rails 20 to the cargo deck.
  • the modular guide rails 2 may be of generally S-shape in transverse cross section an define two rows of guide rails spaced apart a distance slightl greater then the distance between the outermost surfaces of th wheels 30 on a vehicle carrier or dolly 16.
  • Open ended J-shape slots or recesses 20b are selectively formed along the guid rails 20, such as proximate the opposite ends of each modula guide rail section, to facilitate fixed attachment of the carrie 16 to the semitrailer 10.
  • either pivotall disposed or spring loaded latches 20c having a pin 20d laterall extending therefrom extend from the proximal and distal ends o the carrier 16.
  • the pin 20d When the latch 20c comes into proximity .with J-shaped slot 20b the pin 20d automatically drops into the J shaped slot 20b and locks in place thereby fixedly attaching th carrier 16 to the semitrailer 10.
  • the pins may be selective released using cables, a mechanical linkage running to the fro of the semitrailer or other commonly known device Alternatively, wheel blocks, stops or cable-type tie downs may used, as will be described.
  • the guide rails 20 may comprise modular lengths sections of generally C-shaped metallic track having planar low wall surfaces adapted to lie against the cargo deck 10a.
  • an inclin loading ramp is erected which includes a first pair of parall cross-braced inclined ramp sections 68 affixed at their upp ends to suitable jack stands 70 so as to be inclined approximately 10-12 degree angles.
  • Second inclined ramp sectio 72 extend between the jack stands .70 and jack stands 74 aligned relation with the ramp sections 68, the upper ends of t stands 74 being at substantially the same elevation as t semitrailer cargo deck 10a.
  • Horizontal ramp sections 76 a supported between the rear edge of the cargo deck and the upp ends of the jack stands 74 in aligned relation with ramp sectio 72.
  • the ramp sections 76 are of sufficient length to enable vehicle carrier or dolly 16 to be moved up the ramp sections and 72 and positioned on the horizontal ramps 76 such that t forward wheels 28 of the carrier are proximate the rear edge the cargo deck.
  • a modular vehic carrier or dolly 16 is positioned on the horizontal ramps 76 su that its carrier ramps 44 and 46 are substantially aligned wi the ramp sections 68 and 72.
  • the vehicle carrier 16 preferably releasably anchored to the rearward ends of the gui rails 20 as through suitable anchor cables and blocks.
  • a moto vehicle 18 may then be driven, preferably in a reverse direction, upwardly along the loading ramp onto the ramps 44 and 46 o carrier 16. After positioning a motor vehicle 18 onto the ramp of carrier 16, the emergency brake of the vehicle is set and th transmission lever placed in the park mode.
  • th effective width of the semitrailer or cargo container i conventionally approximately 7'-8", and the average overall ca width is approximately 65.6" to 68.3"
  • i is important that the vehicle carrier or dolly 16 and associate motor vehicle 18 be sufficiently spaced from the semitraile access opening 10b to enable opening and closing of the vehicl doors to actuate the emergency brake and shift lever.
  • each of the ramp sections 44a and 44b may have a gravit operated blocking member 80 pivotally mounted thereon adjacen its forward end as illustrated in FIG. 10.
  • the blocking member 80 are pivotal about transverse pivot pins 82 such that weigh arms 80a cause the associated blocking members to rise to whee - or tire blocking positions after the vehicle tires have passes over the blocking members, as is known.
  • the carrier or dolly may be pushed into th semitrailer with the guide rails 20 receiving the carrier wheel 30 therebetween.
  • a plurality of inclined motor vehicles 18 may thus be positioned within the semitrailer with their ends i overlapping relation as illustrated in FIG. 2.
  • Each block 78 preferably h connector pins projecting outwardly from opposite sides to enab positioning of the blocks to engage the front and rear wheels and 30 of a carrier 16 and thereby capture the carriers selected positions along the cargo deck.
  • the motor vehicles 18 are unloaded in a general reverse manner to the aforedescribed loading process after whi the vehicle carriers or dollies 16 may be disassembled modified for use as pallet support platforms to enab substantially full capacity loading of the semitrailer wi conventional alternate cargo 83 on a pallet 85 during a retu trip as shown in FIG. 14.
  • a conventional transport vehicle such as the describ semitrailer 10 or a cargo container of similar size, may readily adapted for conveying motor vehicles which, through u of the modular carriers or dollies 16, allow transport of optimum number of motor vehicles within the given cargo space a highly cost effective manner.
  • FIGS. 7-9 illustrate an alternative modular vehicle carri or dolly, indicated generally at 86, for use in transporting optimum number of motor vehicles within a given cargo space in conventional transport vehicle such as a semitrailer or car container.
  • Components of the modular vehicle carrier 86 whi are substantially identical to corresponding components employ in the aforedescribed vehicle carrier 16 are identified with t same but primed reference numerals.
  • the vehicle carrier or dolly 86 includes a base frame havi longitudinal tubular frame members 24'a and 24'b, which are rectangular cross-section and have ground-engaging wheels 28* an 30' supported between bifurcated ends of. the frame members b axles 32' and 88, respectively.
  • the frame members 24'a and 24' are maintained in parallel relation by tubular transverse fram members, each of which comprises a pair of hinged equal lengt frame sections 90a and 90b having their opposite ends hingedl connected to the frame members 24'a and 24'b.
  • Means are provide to maintain the frame sections 90a,b in rigid aligned position but allow them to be collapsed to enable closely space positioning of the frame members 24' and 24'b.
  • Each of the carrier frame members 24'a and 24'b supports two-section ramp, indicated generally at 94, which includes forward ramp section 94a connected to the associated frame membe 24' or 24'b through a transverse pivot pin 48'.
  • the ram sections 94a have support legs 50' adapted to seat within and b secured to associated anchor brackets 52* fixed within the fram members 24'a,b.
  • the ramp sections 94 are formed so as to establish a first forward approach angle o inclination of approximately 10-12" relative to the frame member 24'a,b when the support legs 50' are seated in the brackets 52'
  • the angle of inclination of ramp sections 94a increases a approximately their longitudinal centers to approximately 23 relative to the frame members 24'a,b.
  • Each ramp 94 has a secon ramp section 94b which may be termed the rearward ramp sectio and which is adapted for releasable connection to its associate ramp section 94a through a transverse connector pin 56'.
  • Th ramp sections 94b are each maintained in fixed inclined relatio to the corresponding carrier frame members 24'a,b by suppor struts 98 and 100 which have a common connection to a suppor bracket 102 secured to the associated frame member 24'a,b.
  • Th opposite ends of the support struts 98 and 100 are releasabl connected to their corresponding ramp section 94b through pivo pins 104 and 106, respectively.
  • the ramp sections 94b ar configured so that their lower ends are substantially coplana with the rearward or upper portions of the corresponding ram sections 94a, while the upper half ends of ramp sections 94b ar formed to establish angles of inclination of approximately 35 relative to the frame members 24'a,b.
  • a releasable cros brace 108 is preferably employed to interconnect the ra sections 94b so as to provide increased lateral stability.
  • T vehicle carrier or dolly 86 is adapted to be disassembled a secured in a generally compact storage condition through packi straps 112a and 112b with the transverse frame members 90a, collapsed, as illustrated in FIGS. 11-13.
  • FIG. 14 illustrates a conventional semitrailer 10 having plurality of vehicle carriers or dollies 86 and associated mot vehicles 18 secured therein after loading directly from a loadi dock or by means of a loading ramp as illustrated in FIG. 1.
  • a motor vehicle 18 driven onto a modul carrier 86 is automatically inclined at an angle of inclinati of approximately 25° to horizontal.
  • the motor vehicle is th securely affixed to the associated carrier as through tie-do cables or straps and the aforedescribed blocks 80 associated wi the forward ends of ramp sections 94a.
  • the loaded modul vehicle carrier or dolly 86 is then pushed into the semitrail along, guide rails 20 affixed along the cargo deck, and blocked t by blocks 78.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Handcart (AREA)

Abstract

Un système de transport pour véhicules à moteur (18) tels que des voitures et autres, dans un véhicule de transport classique (10) tel qu'une semi-remorque ou un container de transport de marchandises, comprend plusieurs diabolos ou supports (16) recevant et portant un véhicule à moteur (18). Les rampes (44, 46) sont réglables pour positionner le véhicule à moteur (18) de manière inclinée par rapport à l'horizontale. Les supports (16) sont adaptés pour être déplacés le long du pont de chargement (10a) du véhicule de transport (10) de sorte que les véhicules à moteur associés (18) sont placés suivant une relation de chevauchement, permettant ainsi de charger et de transporter un nombre optimal de véhicules à moteur (18). Des rails de guidage (20) sont fixés de préférence au pont de chargement (10a) pour guider les supports (16), mais ils sont libérables pour permettre d'utiliser le véhicule de transport (10) pour le transport de marchandises ordinaires (83) lorsque le véhicule de transport (10) n'est pas utilisé pour transporter des véhicules à moteur (18).
PCT/US1988/001223 1987-04-28 1988-04-18 Systeme de transport pour vehicules a roues WO1988008404A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US4342687A 1987-04-28 1987-04-28
US043,426 1987-04-28

Publications (1)

Publication Number Publication Date
WO1988008404A1 true WO1988008404A1 (fr) 1988-11-03

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ID=21927110

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1988/001223 WO1988008404A1 (fr) 1987-04-28 1988-04-18 Systeme de transport pour vehicules a roues

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AU (1) AU1705488A (fr)
WO (1) WO1988008404A1 (fr)

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US963918A (en) * 1909-08-18 1910-07-12 Elizabeth J Miller Folding gang-plank.
US1304656A (en) * 1918-01-15 1919-05-27 Samuel D Butterworth Method and apparatus for loading automobiles.
US2613827A (en) * 1947-09-06 1952-10-14 Hubertus Josephus Van Doorne Self-loading and unloading vehicle
US2786563A (en) * 1954-05-28 1957-03-26 Traffic Transp Engineering Inc Skid support
US3242880A (en) * 1964-01-29 1966-03-29 Pullman Inc Folding pedestal for railway cars
US3255902A (en) * 1964-10-06 1966-06-14 Welten Ottar Torolf Trailer for transport of cars
US3335887A (en) * 1965-08-16 1967-08-15 Blackwelder Mfg Company Gravity-unloading type trailer
US3618796A (en) * 1969-07-25 1971-11-09 Whitehead & Kales Co Vehicle loading and transport system
US3675795A (en) * 1970-04-27 1972-07-11 American Export Isbrandt Shipping container with racks for supporting vehicles therein
US3931895A (en) * 1974-11-01 1976-01-13 Samuel Grimaldo Collapsible trailer hoist
GB1486185A (en) * 1974-10-10 1977-09-21 Dixon Bate Roll pallets
US4124119A (en) * 1977-08-02 1978-11-07 Transequip Inc. Automobile carrier for use on air cargo pallets
US4221526A (en) * 1978-06-05 1980-09-09 Cascade Corporation Walkie low-lift truck with tiltable platen and rearwardly foldable load-supporting wheel struts
US4607996A (en) * 1984-12-24 1986-08-26 New Holland Inc. Lateral transport trailer
US4655671A (en) * 1984-01-11 1987-04-07 Pratt Stephen C Loading and unloading device

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US963918A (en) * 1909-08-18 1910-07-12 Elizabeth J Miller Folding gang-plank.
US1304656A (en) * 1918-01-15 1919-05-27 Samuel D Butterworth Method and apparatus for loading automobiles.
US2613827A (en) * 1947-09-06 1952-10-14 Hubertus Josephus Van Doorne Self-loading and unloading vehicle
US2786563A (en) * 1954-05-28 1957-03-26 Traffic Transp Engineering Inc Skid support
US3242880A (en) * 1964-01-29 1966-03-29 Pullman Inc Folding pedestal for railway cars
US3255902A (en) * 1964-10-06 1966-06-14 Welten Ottar Torolf Trailer for transport of cars
US3335887A (en) * 1965-08-16 1967-08-15 Blackwelder Mfg Company Gravity-unloading type trailer
US3618796A (en) * 1969-07-25 1971-11-09 Whitehead & Kales Co Vehicle loading and transport system
US3675795A (en) * 1970-04-27 1972-07-11 American Export Isbrandt Shipping container with racks for supporting vehicles therein
GB1486185A (en) * 1974-10-10 1977-09-21 Dixon Bate Roll pallets
US3931895A (en) * 1974-11-01 1976-01-13 Samuel Grimaldo Collapsible trailer hoist
US4124119A (en) * 1977-08-02 1978-11-07 Transequip Inc. Automobile carrier for use on air cargo pallets
US4221526A (en) * 1978-06-05 1980-09-09 Cascade Corporation Walkie low-lift truck with tiltable platen and rearwardly foldable load-supporting wheel struts
US4655671A (en) * 1984-01-11 1987-04-07 Pratt Stephen C Loading and unloading device
US4607996A (en) * 1984-12-24 1986-08-26 New Holland Inc. Lateral transport trailer

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Publication number Publication date
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