EP1467903A2 - Vehicule de transport pliable - Google Patents

Vehicule de transport pliable

Info

Publication number
EP1467903A2
EP1467903A2 EP03731718A EP03731718A EP1467903A2 EP 1467903 A2 EP1467903 A2 EP 1467903A2 EP 03731718 A EP03731718 A EP 03731718A EP 03731718 A EP03731718 A EP 03731718A EP 1467903 A2 EP1467903 A2 EP 1467903A2
Authority
EP
European Patent Office
Prior art keywords
transport trolley
load
trolley according
wheel suspensions
transport
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.)
Withdrawn
Application number
EP03731718A
Other languages
German (de)
English (en)
Inventor
Reinhard Stedry
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1467903A2 publication Critical patent/EP1467903A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B1/00—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor
    • B62B1/18—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is disposed between the wheel axis and the handles, e.g. wheelbarrows
    • B62B1/20—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is disposed between the wheel axis and the handles, e.g. wheelbarrows involving parts being collapsible, attachable, detachable or convertible
    • B62B1/208—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is disposed between the wheel axis and the handles, e.g. wheelbarrows involving parts being collapsible, attachable, detachable or convertible foldable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/04—Hand-propelled vehicles or sledges being foldable or dismountable when not in use box-shaped in folded position

Definitions

  • the invention relates to a collapsible transport trolley with a load-receiving surface and at least one pair of wheels.
  • Transport trolleys or trolleys are used, for example, in the form of hand trolleys or trolleys to transport loads.
  • Transport trolleys are known which are suitable for holding beverage crates and are used when shopping.
  • Known transport trolleys are usually designed with two or four wheels.
  • Transport trolleys are also known which can be attached to a two-wheeler, for example a bicycle or a moped, and which can also be used to transport loads, for example drinks crates, luggage or the like, provided with a hitching device.
  • collapsible transport trolleys have already been proposed which, when not in use, can be collapsed to a size which is reduced compared to the size of the built-up transport trolley. In the collapsed state, such trolleys take up less storage space on the one hand, and on the other hand they can be transported more easily when not in use.
  • collapsible transport vehicles there is the problem that these often have wheels with relatively small wheel diameters, which leads to unfavorable driving properties.
  • collapsible trolleys often have a considerable size even when folded.
  • the wheels can be arranged on one side pivotally connected to the load suspension wheel suspensions and that the load bearing surface has at least one joint, by means of which it can be folded.
  • the combination of wheel suspensions pivotably connected to the load-bearing surface and a joint formed in the load-bearing surface, for example a hinge joint, enables the trolley to be folded very compactly when not in use. If the transport trolley is not used, the wheel suspensions are pivoted with or without impellers arranged thereon against the load-carrying surface, and the load-carrying surface is folded along the at least one joint.
  • the at least one joint of the load-bearing surface is preferably arranged such that the load-bearing surface is approximately halved when folded.
  • the wheels can be detachably connected to the wheel suspensions via wheel journals and securing means and can be detached from them for folding the trolley, but the wheels are preferably rotatably fastened to the wheel suspensions and remain installed on the wheel suspensions even when the trolley is folded.
  • the impellers can be formed from any suitable material, plastics, foams, foamed plastics, solid rubber or the like. Can too the wheels are designed as pneumatic tires which, depending on the design, can also be constructed tubeless.
  • the wheel suspensions of the at least one pair of wheels are in the assembled state of the trolley opposite each other and with one running between the wheel suspensions Cross strut are stabilized against each other.
  • the stabilizing cross strut is arranged between the wheel suspensions and is connected at its ends to a wheel suspension after the load-bearing surface has been opened and the wheel suspensions have been pivoted out.
  • the cross strut on the load-bearing surface on its side facing the wheel suspensions in the unfolded state be pivoted so that the cross strut is made of a rest position, in which it extends essentially parallel to the wheel suspensions, can be shifted into an operating position supporting the wheel suspensions to one another.
  • the cross strut used to stabilize the wheel suspensions in the assembled state of the transport carriage is captively connected to the load-carrying surface.
  • the cross strut is released from the wheel suspensions and pivoted or rotated, preferably in a direction parallel to the joint formed in the load-bearing area, the wheel suspensions are pivoted and the load-bearing area is folded up.
  • the procedure is reversed, the load-bearing surface is unfolded, the wheel suspensions are pivoted out and the cross strut is pivoted and connected to the wheel suspensions.
  • a particularly simple handling of the cross strut when assembling or collapsing the trolley results if, as provided in accordance with a development of the invention, locking means cooperating with the ends of the cross strut for locking the cross strut with the wheel suspensions in the operating position are arranged on the wheel suspensions.
  • latching means By means of such latching means, the cross strut can be connected to the wheel suspensions with a simple movement by latching and can be released again by actuating an unlocking mechanism.
  • the load-bearing surface in the unfolded state has on its side facing the wheel suspensions a web extending parallel to the wheel suspensions between them and to which the cross strut is pivotally attached.
  • This configuration ensures that the cross strut extends at a distance from the floor of the load-receiving area between the wheel suspensions, as a result of which the mutual support of the wheel suspensions and thus the stabilization of the entire chassis is improved.
  • the ends of the cross strut on the wheel suspensions advantageously engage approximately at the points at which the wheels are rotatably connected to the wheel suspensions.
  • the trolley with the wheel suspensions on the one hand and the load-bearing surface on the other hand has articulated support struts which run diagonally in the set-up state of the transport trolley, each support strut between the connection point has a joint with the load-bearing surface and the connection point with the wheel suspension, so that when the wheel suspensions are pivoted from an operating position into a rest position, the support struts can be folded together.
  • the support struts are preferably preloaded by means of a return spring, which can be designed, for example, as a helical spring.
  • This configuration has the advantage that the trolley can be folded up in a simple manner, because the support struts are automatically transferred into their respective folded positions as a result of the action of the return springs.
  • a cable to be operated by the operator is provided, under the influence of which the support struts can be folded out against the force of the return springs.
  • An actuation mechanism which is easily accessible by the operator can be provided for actuating this cable pull and can be actuated, for example, by means of a simple handle.
  • the support struts are folded out by means of hydraulic or pneumatic force.
  • the only decisive factor is that the operator of the trolley can easily and conveniently generate the opening force required for unfolding the support struts and can transmit them to the support struts as desired. This can be achieved by means of a shaft arrangement, by the cable pull training described, or else hydraulically or pneumatically.
  • the support struts offer further stabilization against transverse loads. Because the support struts have joints, they can be folded together when pivoting the wheel suspensions without the support struts having to be detached from the wheel suspensions and / or from the load-bearing surface.
  • the transport trolley has a drawbar arm arranged on the load-carrying surface.
  • the drawbar arm can also be used to attach the transport cart to a towing vehicle, for example a two-wheeler.
  • the drawbar arm is preferably fastened to a web arranged below the load-receiving area in order to produce a better lever.
  • the drawbar arm is arranged so as to be pivotable relative to the web and, if appropriate, can be locked in the respective position on the web or the load-carrying surface.
  • the drawbar arm is pivotably arranged on the load receiver.
  • the transport trolley has a securing device for fixing the drawbar arm in an operating position on. Such a securing device prevents the drawbar arm from pivoting when the trolley is being pulled or pushed. The transport trolley can thus be operated safely.
  • the transport trolley can have, for example, openings formed in the drawbar arm and in the load receptacle as well as a securing pin which can be inserted into these openings for fixing the drawbar arm in the operating position. This locking pin is removed before folding the trolley and can then be used advantageously to fix the elements of the trolley in the folded state in their shape so as to prevent individual parts of the trolley from unintentionally unfolding.
  • a handle is arranged on the drawbar arm. This handle can be used to pull or push the trolley by hand.
  • the carriage can advantageously have a locking device which can be actuated with the handle.
  • the locking device By actuating the locking device, the trolley can be secured in the parked state against unintentional rolling away.
  • the transport trolley can have, according to a further development of the invention, a shaft which is guided along the drawbar arm and is connected to the handle and which has an arrangement consisting of at least one gear and possibly further shafts with two cams and in the assembled state of the transport trolley Shafts arranged above the impellers interact in such a way that when the shaft guided along the drawbar arm is rotated, the cams of the two shafts in the assembled state of the carriage act on brake plates arranged above the impellers, which brake plates then prevent the impellers from rotating.
  • the brake plates are floating.
  • the shaft guided along the drawbar arm is rotated and, via the arrangement consisting of at least one gear and possibly further shafts, causes the shafts arranged above the impellers to rotate, with the cams moving the brake plate in the direction of the wheels.
  • the brake plate engages the running wheels and prevents the running wheels from twisting and thus preventing the carriage from rolling away.
  • actuate the brake plate by means of a cable.
  • This is connected to the brake plate in a manner known per se and guided over the drawbar arm to the handle.
  • a corresponding device is arranged on the handle, which can be easily operated by the operator or user of the trolley.
  • the handle can either be designed to be movable or rigid, and in the case of a rigid handle, a corresponding actuating mechanism must be provided for actuating the cable.
  • Such an actuation mechanism can be designed, for example, in the form of an articulated lever which is gripped by the user when required and articulated for actuation. As a result of this articulation, the cable is tensioned and the brake plate is pressed against the wheels.
  • the arrangement of brake shoes or the arrangement of a drum brake can also be provided.
  • supports are arranged on the two camshafts, which are supported by rotating these shafts into the position in which the cams act on the brake plates of the trolley are folded out, while in a normal position of the two shafts, in which the cams do not act on the brake plates, they rest folded under the load-bearing surface.
  • the transport trolley preferably has a total of four supports, each corner of the transport trolley each having one support. Alternatively, provision can also be made to provide either one or two supports at the front or one support at the front and rear. It is crucial, however, that the additional arrangement of supports allows the trolley to be supported in the opened state. Such support is not only advantageous from a safety-related point of view, it also ensures simple loading and unloading of the trolley.
  • the supports each have a folding mechanism at their end facing the transport carriage, which allows the supports to be folded in to save space when not in use.
  • Such folding of the supports can alternatively also be accomplished by means of a cable pull, wherein the actuation of such a cable pull can take place via a lever mechanism or the like arranged on the handle.
  • the handle provided on the end of the drawbar arm is rigid and has a lever mechanism by means of which the supports can be folded out.
  • the drawbar arm has at least one joint, as provided in accordance with a development of the invention. If the transport carriage has a shaft guided along the drawbar arm, the shaft must be provided with a cardan joint at the point at which the drawbar arm has a joint.
  • the load-bearing surface has, according to a further development of the invention, on the edges of the boundary walls which can be folded down on the side opposite the wheel suspensions.
  • these boundary walls can be folded out, thus creating a border for the load-bearing area.
  • folding the trolley the boundary walls are folded down in order to achieve a small size of the folded trolley.
  • the transport trolley can advantageously be collapsed by pivoting the wheel suspensions, collapsing the load-bearing surface and folding down the drawbar arm to suitcase size. It can advantageously be arranged on one of the elements of the trolley, a handle that can be used in the collapsed state.
  • Such a trolley can be transported and stored in the folded state like an ordinary suitcase. If the trolley is needed for transport, it is set up. Due to the simple design with swiveling wheel suspensions, a collapsible load-bearing surface and the foldable drawbar arm, the transport trolley can be converted from its compact case shape into its built-up form of use in a simple and quick process.
  • the transport trolley can have fastening elements with which it can be fixed to a bicycle luggage rack in the collapsed state.
  • the transport carriage has a holder arranged on its load-bearing surface for fastening a child seat.
  • the bracket can be designed to be compatible with a bracket for a child seat that can be attached, for example, to a bicycle luggage rack, so that a child seat can be attached either to a bicycle rack or to the load-bearing surface of the trolley according to the invention.
  • Load carrying surface, drawbar arm, wheel suspensions and struts of the transport vehicle according to the invention are preferably made of a light metal, preferably aluminum.
  • FIG. 1 schematically shows a transport trolley according to the invention in the assembled state
  • Figure 2 schematically shows a front view of the invention
  • FIG. 3 schematically shows the load bearing area of an inventive
  • FIG. 4 schematically, a side view of a detail of a locking device for an impeller of the transport carriage according to the invention
  • Figure 5 shows the trolley in a partially folded state (without
  • Figure 6 shows the trolley in a fully folded state
  • FIG. 7 shows the transport trolley in the completely folded state with fastening devices arranged thereon for hanging on a bicycle luggage rack.
  • a transport carriage 1 according to the invention is shown schematically and partially in sections in the figures.
  • the trolley 1 has a load receiving surface 2, which in the present case has dimensions of approximately 610 x 460 mm.
  • Wheel suspensions 4 are arranged on the underside of the load-carrying surface 2 (can be seen in FIG. 1), on which running wheels 5 are rotatably fastened.
  • Extending between the wheel suspensions 4 is a cross strut 6, which is rotatably or pivotably connected via a joint 7 to a web 8 arranged below the load-bearing surface 2 in the assembled state.
  • the wheel suspension 4 is supplemented by a rocker 29, so that the wheel 5 is inserted in a completely guided manner. Beyond that the wheel is located within the side dimensions of the dolly.
  • the rocker 29 can be completely folded in with the outer element designated as wheel suspension 4 and the wheel 5 when folded.
  • the wheel suspension 4, the rocker 29 and the wheel 5 can be designed as a rigid assembly.
  • a handle 10 is arranged on the drawbar arm 9.
  • the handle 10 is connected to a shaft 23 which is guided along the drawbar arm and which has a cardan joint 11 in the region of the joint 28 of the drawbar arm 9.
  • the drawbar arm 9 can have further joints, universal joints and the like, in order to be able to be folded up even smaller or to be used more flexibly.
  • the shaft 23 is arranged in the area of the load-bearing surface 2 on a gear, not shown here, which transmits a rotational movement of the shaft 23 to shafts 19 running in the longitudinal direction of the built-up carriage on the edge of the load-bearing surface 2 via further shafts and gear members.
  • Supports 20 are arranged on the shafts 19, which normally rest below the load-receiving surface 2 when the trolley 1 is installed.
  • the trolley 1 By turning the handle 10, the trolley 1 can thus be parked safely and with an essentially horizontal load-receiving surface 2.
  • a cable For this purpose, one is guided along the tiller arm or through the tiller arm Cable provided, which is connected to an actuating mechanism arranged on the handle.
  • the supports can be folded down by actuating the cable pull.
  • the actuating mechanism is to be operated so that, in contrast to the exemplary embodiment described above, the handle can be rigid and not rotatable.
  • the actuation of the brake plates can also be designed by means of a cable pull arrangement.
  • the arrangement of brake shoes or the formation of a drum brake can also be provided.
  • a lever arranged on the handle is preferably provided to actuate the supports.
  • This lever is arranged on the handle in a relatively pivotable manner and can be gripped and actuated in a simple manner by the operator of the trolley.
  • each of which is formed on the corner side of the trolley.
  • it can also be provided to provide one or more supports on the front of the transport carriage or one support on the front and rear of the transport carriage. It is crucial, however, that a secure stand of the trolley can be ensured when the supports are folded out.
  • Figure 3 is shown schematically that the load-receiving surface 2 has foldable boundary walls 18 at its edges, which form a circumferential side wall for the load-receiving surface 2 in the unfolded state and thus prevent falling of transported goods.
  • the carriage shown is made of aluminum except for the wheels 5, plastic caps being attached to the edges for shock protection reasons.
  • the impellers 5 are ball-bearing impellers with a wheel diameter of 300 mm, the impellers 5 being equipped with solid rubber tires.
  • FIG. 5 the trolley according to the invention is shown in a partially folded state. It is easy to see that the cross strut 6 has been pivoted out of its position connecting the wheel suspensions 4 when the transport carriage 1 is built into a position which runs essentially parallel to the web 8 between the wheel suspensions 4. The ends of the cross strut 6 are locked in the assembled state of the transport carriage 1 with the wheel suspensions 4 via latching means and are released for releasing the transport carriage 1 by unlocking the wheel suspensions 4.
  • FIG. 5 it can also be seen that the wheel suspensions 4 are folded down in the direction of the load-receiving surface 2, the cross struts 14 folding down on the joint 15 and thus laying flat against the underside of the load-carrying surface 2.
  • the drawbar arm that is still folded out is not shown in FIG.
  • the transport trolley 1 is folded into the shape shown in FIG. 6 in the form of a suitcase.
  • the load-bearing surface 2 is folded over at the hinge joints 3, and the drawbar arm 9 is folded over on the articulated attachment to the load-bearing surface 2 and the joint 28.
  • a locking pin 27 is passed through openings in the load-receiving surface 2 and the drawbar arm 9, so that the trolley 1 does not accidentally fold apart when folded.
  • the securing pin 27 used to secure the trolley in the collapsed state also serves as a securing pin when the trolley 1 is set up, in order to establish the articulated connection between the drawbar arm 9 and the load-carrying area 2.
  • the pin is set up in this area through openings provided in the drawbar arm 9 and the load receiving area 2 out.
  • it can also be provided to provide a tensioning device instead of the securing pin 27, which the user can operate manually in a simple manner.
  • a handle 25 is formed on the drawbar arm 9, which makes it possible to carry the folded trolley 1 like a suitcase.
  • the trolley 1 When folded, the trolley 1 has dimensions of approx. 550 x 350 x 20 mm and can do so conveniently carried as luggage, for example as hand luggage on an airplane.
  • the transport trolley 1 has, in the folded state, hanging brackets 26 for hanging on a bicycle luggage rack.
  • These suspension brackets 26 are optional and can be omitted.
  • collapsible trolley 1 is only made up of parts connected to one another by joints and the cross strut 6 can be connected to the wheel suspensions 4 by simply latching, a simple assembly and disassembly of the trolley 1 is possible without additional tools.
  • the handle 10 is designed in such a way that it can be used as a trailer in connection with a hitch element attached to a towing vehicle, for example a bicycle, for coupling the trolley 1.
  • a holding device for fastening a child seat is provided on the load-receiving surface 2, not shown in the exemplary embodiment shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Handcart (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

L'invention concerne un véhicule de transport pliable comprenant une surface de réception de la charge et au moins une paire de roues. En vue d'obtenir un véhicule de transport pouvant être assemblé et plié avec peu de manipulations et étant, à l'état replié, d'un encombrement relativement réduit, l'invention est caractérisée en ce que les roues (5) sont agencées sur des suspensions (4) qui sont reliées pivotantes sur un côté de la surface réceptrice de charge (2), et en ce que la surface réceptrice de charge (2) présente au moins une articulation (3) au moyen de laquelle elle est pliable.
EP03731718A 2002-01-24 2003-01-24 Vehicule de transport pliable Withdrawn EP1467903A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20200989U DE20200989U1 (de) 2002-01-24 2002-01-24 Zusammenlegbarer Transportwagen
DE20200989U 2002-01-24
PCT/EP2003/000748 WO2003062031A2 (fr) 2002-01-24 2003-01-24 Vehicule de transport pliable

Publications (1)

Publication Number Publication Date
EP1467903A2 true EP1467903A2 (fr) 2004-10-20

Family

ID=7966887

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03731718A Withdrawn EP1467903A2 (fr) 2002-01-24 2003-01-24 Vehicule de transport pliable

Country Status (5)

Country Link
US (1) US20050173875A1 (fr)
EP (1) EP1467903A2 (fr)
AU (1) AU2003215545A1 (fr)
DE (1) DE20200989U1 (fr)
WO (1) WO2003062031A2 (fr)

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Publication number Priority date Publication date Assignee Title
ES2846599T3 (es) * 2011-05-13 2021-07-28 Maquet Cardiovascular Llc Unidad de transporte portátil y modular con capacidades de transporte mejoradas
DE102013014989B3 (de) * 2013-09-10 2014-05-22 Sascha Siebenhaar Fahrgestell für eine Babyschale
US9969227B1 (en) * 2017-05-16 2018-05-15 Jessica McNeave Amphibious utility wagon

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Also Published As

Publication number Publication date
AU2003215545A1 (en) 2003-09-02
WO2003062031A3 (fr) 2004-03-11
DE20200989U1 (de) 2002-04-11
US20050173875A1 (en) 2005-08-11
WO2003062031A2 (fr) 2003-07-31

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