US3599810A - Load-carrying vehicle - Google Patents

Load-carrying vehicle Download PDF

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Publication number
US3599810A
US3599810A US885729A US3599810DA US3599810A US 3599810 A US3599810 A US 3599810A US 885729 A US885729 A US 885729A US 3599810D A US3599810D A US 3599810DA US 3599810 A US3599810 A US 3599810A
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United States
Prior art keywords
vehicle
frame
slidable frame
bed
movement
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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
US885729A
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English (en)
Inventor
Heinrich Wanko
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.)
RATIONORM AG
Original Assignee
RATIONORM AG
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Publication date
Application filed by RATIONORM AG filed Critical RATIONORM AG
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Publication of US3599810A publication Critical patent/US3599810A/en
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    • 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
    • B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
    • B60P1/44—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading having a loading platform thereon raising the load to the level of the load-transporting element
    • B60P1/4414—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading having a loading platform thereon raising the load to the level of the load-transporting element and keeping the loading platform parallel to the ground when raising the load
    • B60P1/445—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading having a loading platform thereon raising the load to the level of the load-transporting element and keeping the loading platform parallel to the ground when raising the load the loading platform, when not in use, being stored under the load-transporting surface

Definitions

  • a load-carrying vehicle has a load-carrying bed y l opposite sides of which extend lengthwise of the vehicle. At P 18 15557 6 least one support rail extends along one of the sides at the underside of the bed at least when in use. A supporting frame is mounted on the bed below the same and has an open side.
  • LOAD CARRYING VEHICLE Loading platform means including a slidable frame 15 Claims, 1 1 Drawing Figs mounted in the supporting frame for movement relative to the same between an extended and a withdrawn position in the [52] [1.8. CI 214/77 R, fi f hih it tiv ly is withdrawn from the supporting 214/8314, 280/34 R frame through the open side thereof and extends at least in 1 ll".
  • the present invention relates to load-carrying vehicles, and more particularly to a loading platform arrangement for use as a load-carrying vehicle.
  • tailgates need not necessarily be provided at the rear end of the vehicle, but can also be provided at one side. They are power operated and can be lowered to the ground on which the vehicle rests, and raised to the level of the vehicle load-carrying bed. To load heavy items into the vehicle, the tailgate is lowered to the ground, the items are placed on it and the tailgate is then raised to the level of the bed whereupon the items are removed from the tailgate and moved onto the bed. Unloading, of course, requires the reverse operations. Such installations are usually operated hydraulically, by manual operation or via the vehicle engine or an electromotor. They may be factory installed in the vehicle or may be subsequently added.
  • a more particular object of the present invention is to provide such an arrangement which is relatively simple and comparatively inexpensive in its construction.
  • a further object of the invention is to provide such an arrangement which is a part of the load-carrying vehicle itself.
  • Still a further object of the invention is to provide such an arrangement which provides ready access to all parts of the load-carrying bed of the vehicle, irrespective of ambient con-,
  • a load-carrying vehicle which comprises, briefly stated, a loadcarrying bed having opposite sides which extend lengthwise of the vehicle. At least one support rail extends along one of these sides at the underside of the bed at least when in use.
  • a supporting frame is mounted on the bed below the same and has an open side.
  • Loading platform means is provided including a slidable frame mounted in the supporting frame for movement relative to the same between an extended and a withdrawn position in the first of which it is respectively withdrawn from the supporting frame through the open side thereof and extends at least in part laterally beyond the one side, and in the second of which it is withdrawn in its entirety inwardly of the one side.
  • Connecting means connects the slidable frame with the support rail for movement lengthwise of the same when the slidable frame is in its extended position.
  • Ground support means supports the part of the slidable frame on the ground when the slidable frame is in its extended position.
  • the loading platform means is a part of the load-carrying vehicle itself and can be moved to desired locations of the load-carrying bed of the vehicle irrespective of ambient conditions, including the condition of the ground on which the vehicle rests. Access is now possible also to portions of the loadcarrying bed which are above the vehicle axes.
  • the arrangement according to the present invention is suitable for all types of load-carrying vehicles having load-carrying beds including semitrailers.
  • the loading platform means according to the present invention can be located at a variety of positions underneath the load-carrying bed of the vehicle, entirely in the discretion of the designer. It can be provided as a factory installation or it can be added to an existing vehicle. In the latter case, there is no need to make any significant modifications in the construction of the vehicle itself.
  • FIG. 1 is a somewhat diagrammatic end elevational view of the vehicle in accordance with one embodiment of the invention with parts which are made for the sake of clarity;
  • FIG. 2 is a view similar to FIG. 1 showing the arrangement according to the present invention extending laterally beyond one side of the bed of the vehicle;
  • FIG. 3 is a top plan view of the arrangement according to the present invention and as employed in FIGS. 1 and 2, with the vehicle itself largely omitted for the sake of clarity;
  • FIG. 4 is a perspective view of the loading platform arrangement of FIGS. 13;
  • FIG. 5 is a view of FIG. 4 as seen looking towards the righthand side thereof;
  • FIG. 6 is a fragmentary sectional elevation on an enlarged scale, showing details of the invention. 7
  • FIG. 7 is a view similar to FIG. 1 but illustrating a further embodiment of the invention.
  • FIG. 8 is a view similar to FIG. 3 but of FIG. 7 with parts of the vehicle again omitted;
  • FIG. 9 is a fragmentary detailed view, on an enlarged scale, showing a detail according to the embodiment of the invention.
  • FIG. 10 is a view similar to FIG. 5, but illustrating the embodiment of FIG. 9;
  • FIG. 11 is a view similar to FIG. 6, but of the embodiment of FIGS. 9 and 10.
  • a load-carrying vehicle comprises a load-carrying bed I mounted below which are two supporting beams 2 which extend lengthwise of the vehicle. Secured to these beams 2 by means of a ring mound 15 of known construction, is a supporting frame 4 which is thus turnable about an axis A illustrated in FIG. 1. Extending along opposite lateral sides of the vehicle bed 1, are mounting supports 3 which project downwardly below the underside of the vehicle bed 1 and which carry respective longitudinally extending support rails 10. The cross-sectional illustration of the support rails 10 in FIGS. 1- 5 is diagrammatic only.
  • the rails 10 and the mounting supports 3 are pivotable about the hinges 19 so that the rails can be pivoted upwardly above the upper side of the bed 1 when not in use.
  • they can also be rigidly connected to the bed 1, as for instance illustrated in the embodiment shown in FIG. 11.
  • Reference character W identifies two of the wheels of the vehicle which of course may be mounted in conventional manner.
  • a slidable frame 5 which is provided in the illustrated embodiment with the rollers 12 which roll along corresponding surfaces of the supporting frame 4.
  • the sliding frame 5 carries a loading platform 6, lifting arms 7 which are connected with the loading platform 6, and a hydraulic drive means 8 which serves to raise and lower the lifting arms 7 and thereby the loading platform 6.
  • the components 6, 7 and 8 constitute together with the slidable frame 5, a unit.
  • FIG. 2 shows this unit in operative position.
  • the rollers 9, which as shown in FIGS. 4 and 5 are mounted on the free ends of arms 13 which in turn are pivotable about pins 13a with reference to the frame 5 whereas the rollers 9 are pivotable about pins 9a, engage and are rollably supported on the respective support rails 10.
  • the slidable frame 5 is slightly lifted so that the rollers 12 no longer have contact with the supporting frame 4.
  • FIG. 4 in the illustrated embodiment of FIGS. 15, there is only a single wheel 11 provided which is located as illustrated, with the frame 5 extending only part way at the side which is not provided with the wheel 11.
  • This has the advantage that load may be placed onto the loading platform 6 from the front as well as from the side, that is, from FIG. 4 from the right-hand or as seen from the top of the drawing.
  • the guide rails 14 initially hold the arms 13 downwardly deflected position by contact with their free ends and while the arms move along the parallel portions of the guide rails 14.
  • the arms 13 can now move upwardly about the respective pins under the influence of the spring 21.
  • FIGS. 7 and 8 Such a possibility is for instance shown in FIGS. 7 and 8 with the guide rails 14 are strictly straight and extend in parallelism with one another. However, in the region of the opposite ends of the respective guide rails 14 there are arcuately curved guide tracks 14a of sheet metal or the like which are connected in suitable manner to the vehicle bed 1. In this case, the guide rails 14 are secured on the upper side of the supporting frame 4. If the latter is turned about the axis A so that its open side points to its righthand side of the vehicle (compare FIG.
  • the arms will remain downwardly deflected into the general plane of the slidable frame 5 until they reach the right-hand ends of the guide rails 14 and will move upwardly only when they reach the right-hand arcuately curved tracks 14a. If, on the other hand, the frame 4 is turned about the axis A so that its open side faces towards the left of the vehicle (oppositely illustrated in FIG. 7), then the guide tracks 14a located at the left-hand side of the guide rails 14 (compare FIG. 8) will govern when the arms 13 can become erected.
  • FIGS. 36 Such position is clearly identified with FIGS. 36 from which it will be seen that there are mounted on for pivotable movement about the pivot pins 941 of the rollers 9, the arrest-- ing members 16 arm portions of which engage behind the respective support rail 10 and in this manner prevent movement of the slidable frame 5 from the position of FIG. 2 to the position of FIG. 1.
  • one end of each of the arresting members 16 is laterally of ict with ret-..rcn :e to the remainder ofthrrespec tive member It is this offset one end which then engages behind the supporting rail 15).
  • an actuating member 17 is located at the open side of the frame 4 and movable upwardly and downwardly in direction of the double-headed arrow in FIG. 5.
  • the principle of operation, and how the member 17 moves the arresting member 16 to arresting position with respect to the support rail 1 when itselfis moved in upward direction in FIG. 5, is clearly evident.
  • the arresting members are identified with reference numeral 16 and are substantially of U-shaped crosssectional configuration with the outermost arm 18 extending into a groove provided in the support rail to thus prevent all but lengthwise movement-lengthwise to the rail 10-of the frame S'When the arms 18 are in this position.
  • the actuating member 17 is mounted in a support which in turn is connected to the underside of the bed 1, and is again movable upwardly and downwardly as indicated by the double-headed arrow. To permit movement of the rollers 9 into rolling contact with the rail 10 and the frame 5 is moved from the position of FIG. 1 to that of FIG. 2, the
  • FIG. 6 is in its down position (oppositely the I one shown in FIG. 6) and the arresting member 16 include an obtuse angle with one another. In this position, the portion 23 mounted on the member 17, is located ahead of the respective rollers 9 and prevents longitudinal movement of the frame 5, that is the movement lengthwise of the respective support rail 10.
  • the rollers 12 of the slidable frame 5 are slightly spaced upwardly above the extension 22 of the supporting frame 4, and thus the slidable frame 5 may compensate for slight unevenness of the ground.
  • each of the arms 13 in FIGS. 9-11 has an angled portion 28 at its free end from which there projects a pin 9 which extends through an opening 27a in the bight of the respective arresting member 160.
  • a similar but elongated opening 27 is provided in one arm of the arresting member 16b and a portion of the pin 90 on which the rollers 9 are mounted extends through this opening 27 or at least into it.
  • An expansion spring 30 (see FIG. 11) is confined between the portion 28 and the bight of the respective member 16b and tends to move the latter upwardly away from the portion 28 to the position illustrated in FIG. 9 and in FIG. 11. 1
  • FIG. 11 there is further provided in this embodiment upwardly above the respective rail 10 an auxiliary rail extending lengthwise of the vehicle but interrupted for a distance corresponding to the width of the open side of the frame 4, with this interruption being so located as to normally register with the open side of the frame 4 when the same is in its inoperative position in which it is merely transported beneath the vehicle with the loading arrangement not being in use.
  • the purpose is to permit the frame 5 to pass not only through the open side of the frame 4 but also through the interruption in the respective auxiliary rail 25.
  • the arms 13' with the arresting member 16b are located in this interruption of the respective auxiliary rail 25 and this prevents lengthwise movement of the frame 5 in the direction of elongation of the respective rail 10.
  • the deflecting member l7b which is illustrated as an elongated rod or tubular member secured as by welding or in any other suitable manner to pivotable support arms 26 (one shown in FIG. 11) the arresting members 16b are downwardly displaced against the force of the springs 30 so that the outermost arm l 8b(compare FIG. 11) extends into the groove of the respective rail 10. In so doing the members16b are downwardly displaced at least by the distance a in FIG.
  • the frame 5 is moved lengthwise of the respective rail 10 until it registers with the inside of the frame 4. Thereupon the arresting members are disengaged from the frame 10 and the frame 5 is moved in the frame 4 until it reaches the position illustrated for instance in FIG. 1.
  • suitable arresting means may be provided for preventing frame 5 from moving with reference to the frame 4 when the device is not in use, for instance when the vehicle travels.
  • the rails 10 are mounted pivotably in the manner illustrated for instance in the embodiment of FIGS. 1-5 or in that of FIG. 6, they can be pivoted upwardly above the hinges l9 and secured in suitable manner to the sides of the vehicle. With the frame 5 located within the confines of the frame 4, as for instance shown in FIG. 1, the arms 13 or 13' with their respective rollers and arresting members are located in recesses provided for this purpose on the frame 5.
  • a load-carrying bed having opposite sides which extend lengthwise-of the vehicle; at least one support rail extending along one of said sides at the underside of said bed at least when in use; a supporting frame mounted on said bed below the same and having an open side; loading platform means, including a slidable frame mounted in said supporting frame for movement relative to the same between an extended and a withdrawn position in the first of which it is withdrawn from said supporting frame through said open side thereof and extends at least in part laterally beyond said one side, and in the second of which it is withdrawn in its entirety inwardly of said one side; connecting means for connecting said slidable frame with said support rail for movement lengthwise of the same when said slidable frame is in said extended position; and ground support means for supporting said part of said slidable frame on the ground when the slidable frame is in said extended position thereof.
  • ground support means comprises a wheel.
  • said connecting means comprising roller means provided on said slidable frame and arranged to engage and roll on said support rail when said slidable frame is in said extended position.
  • said connecting means further comprises at least one arm mounted on said slidable frame and pivotable between two positions in one of which a free end portion of said arm is located in the general plane of said slidable frame and in the other of which it projects upwardly above the same; biasing means biasing said arm to said other position; control means acting counter to said biasing means and moving said arm to said one position in response to movement of said slidable frame to said withdrawn position thereof; said roller means comprising at least one roller mounted freely turnably on said free end portion and arranged to engage and roll on said support rail when said arm is in said other position.
  • said connecting means further comprising arresting means provided on said free end portion of said arm and movable between an arresting position engaging said rail when said slidable frame is in said extended position for preventing undesired movement of said slidable frame to said withdrawn position, and a release position.
  • said rail having a groove facing upwardly towards said bed, and said arresting means comprising at least one arresting member tiltable about the axis of rotation of said roller and having a portion extendable into said groove when said slidable frame is in said extended position and said arm is in said other position.
  • control means comprising guide track means on said supporting frame and arranged to receive said free end portion of said arm, and to move the latter to said one position, in response to movement of said slidable frame to said withdrawn position thereof.
  • said mounting means comprising hinge means mounting said rail for hinged movement between said upper and lower positions.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Loading Or Unloading Of Vehicles (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
US885729A 1968-12-18 1969-12-17 Load-carrying vehicle Expired - Lifetime US3599810A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681815357 DE1815357A1 (de) 1968-12-18 1968-12-18 Ladebruecke an Fahrzeugen

Publications (1)

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US3599810A true US3599810A (en) 1971-08-17

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Application Number Title Priority Date Filing Date
US885729A Expired - Lifetime US3599810A (en) 1968-12-18 1969-12-17 Load-carrying vehicle

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US (1) US3599810A (enrdf_load_stackoverflow)
AT (1) AT295402B (enrdf_load_stackoverflow)
BE (1) BE737502A (enrdf_load_stackoverflow)
CH (1) CH493345A (enrdf_load_stackoverflow)
DE (1) DE1815357A1 (enrdf_load_stackoverflow)
FR (1) FR2026391A1 (enrdf_load_stackoverflow)
GB (1) GB1226489A (enrdf_load_stackoverflow)
NL (1) NL6912419A (enrdf_load_stackoverflow)
SE (1) SE347471B (enrdf_load_stackoverflow)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3895726A (en) * 1973-03-20 1975-07-22 Central Mine Equipment Company Movable auger rack
US4058228A (en) * 1976-03-04 1977-11-15 Hall Edward L Passenger vehicle access stair and elevator apparatus
US4134504A (en) * 1976-09-21 1979-01-16 Louis Salas Lift for wheelchairs
US4579503A (en) * 1983-11-02 1986-04-01 Leyman Manufacturing Corp. Sideloader elevator platform
US4710086A (en) * 1985-02-27 1987-12-01 New Holland Inc. Bale accumulator
US4711613A (en) * 1983-04-28 1987-12-08 Henderson Doors Limited Vehicle lift devices
US4878800A (en) * 1988-03-15 1989-11-07 Dell Travis E Portable unloading platform and ramp
US5026243A (en) * 1988-03-15 1991-06-25 Dell Travis E Portable unloading platform and ramp
US20030234501A1 (en) * 2002-06-25 2003-12-25 Cohen Ohad Mordehai Wheeled base
US20050036867A1 (en) * 2003-07-28 2005-02-17 Isaac Dyck Wheelchair lift for automobile
US20060045706A1 (en) * 2002-10-26 2006-03-02 Gerd Bar Lowerable elevating platform comprising a cable guide
US20070020075A1 (en) * 2005-06-29 2007-01-25 Kelly James B Iii Vehicle passenger lift
US20080226435A1 (en) * 2007-03-15 2008-09-18 Patterson Gregory S Loading and unloading apparatus for trailer body
EP2289408A1 (en) 2009-08-28 2011-03-02 Biosense Webster, Inc. Catheter with multi-functional control handle having rotational mechanism
US11345268B2 (en) * 2020-02-22 2022-05-31 Emhip, Llc Automated cargo vehicle ramp deployment system and associated methods

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT322379B (de) * 1972-06-23 1975-05-26 Weber Walter Ing Einrichtung zur steuerung einer ladeplattform für lastkraftwagen
GB2132582A (en) * 1982-12-18 1984-07-11 Primrose Third Axle Company Li Tail lifts
GB2138772B (en) * 1983-04-28 1987-02-18 Fretwell P & J Ltd Improvements in or relating to vehicle lift devices
ATE190927T1 (de) * 1988-11-05 2000-04-15 Ricon Uk Ltd Fahrzeuge und ladebordwände

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2892556A (en) * 1956-08-10 1959-06-30 Roy E Lowe Vehicle load handling construction
US3263835A (en) * 1964-05-27 1966-08-02 Maxon Industries Loading apparatus for vehicles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2892556A (en) * 1956-08-10 1959-06-30 Roy E Lowe Vehicle load handling construction
US3263835A (en) * 1964-05-27 1966-08-02 Maxon Industries Loading apparatus for vehicles

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3895726A (en) * 1973-03-20 1975-07-22 Central Mine Equipment Company Movable auger rack
US4058228A (en) * 1976-03-04 1977-11-15 Hall Edward L Passenger vehicle access stair and elevator apparatus
US4134504A (en) * 1976-09-21 1979-01-16 Louis Salas Lift for wheelchairs
US4711613A (en) * 1983-04-28 1987-12-08 Henderson Doors Limited Vehicle lift devices
US4579503A (en) * 1983-11-02 1986-04-01 Leyman Manufacturing Corp. Sideloader elevator platform
US4710086A (en) * 1985-02-27 1987-12-01 New Holland Inc. Bale accumulator
US4878800A (en) * 1988-03-15 1989-11-07 Dell Travis E Portable unloading platform and ramp
US5026243A (en) * 1988-03-15 1991-06-25 Dell Travis E Portable unloading platform and ramp
US20030234501A1 (en) * 2002-06-25 2003-12-25 Cohen Ohad Mordehai Wheeled base
US20060045706A1 (en) * 2002-10-26 2006-03-02 Gerd Bar Lowerable elevating platform comprising a cable guide
US7367770B2 (en) * 2002-10-26 2008-05-06 Baer Gerd Retractable tail-lift for a vehicle
US20050036867A1 (en) * 2003-07-28 2005-02-17 Isaac Dyck Wheelchair lift for automobile
US20070020075A1 (en) * 2005-06-29 2007-01-25 Kelly James B Iii Vehicle passenger lift
US20080226435A1 (en) * 2007-03-15 2008-09-18 Patterson Gregory S Loading and unloading apparatus for trailer body
EP2289408A1 (en) 2009-08-28 2011-03-02 Biosense Webster, Inc. Catheter with multi-functional control handle having rotational mechanism
US11345268B2 (en) * 2020-02-22 2022-05-31 Emhip, Llc Automated cargo vehicle ramp deployment system and associated methods
US11358509B2 (en) * 2020-02-22 2022-06-14 Emhip, Llc Automated cargo vehicle ramp deployment system and associated methods

Also Published As

Publication number Publication date
AT295402B (de) 1972-01-10
NL6912419A (enrdf_load_stackoverflow) 1970-06-22
GB1226489A (enrdf_load_stackoverflow) 1971-03-31
BE737502A (enrdf_load_stackoverflow) 1970-01-16
SE347471B (enrdf_load_stackoverflow) 1972-08-07
CH493345A (de) 1970-07-15
FR2026391A1 (enrdf_load_stackoverflow) 1970-09-18
DE1815357A1 (de) 1970-06-25

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