EP4054916A1 - Faltbare vorrichtungen zum transportieren von lasten - Google Patents
Faltbare vorrichtungen zum transportieren von lastenInfo
- Publication number
- EP4054916A1 EP4054916A1 EP20800852.4A EP20800852A EP4054916A1 EP 4054916 A1 EP4054916 A1 EP 4054916A1 EP 20800852 A EP20800852 A EP 20800852A EP 4054916 A1 EP4054916 A1 EP 4054916A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- platform
- foldable
- lift
- coupled
- wheels
- 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.)
- Pending
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
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/02—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible
- B62B3/022—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible folding down the body to the wheel carriage or by retracting projecting parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/02—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
- B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
- B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
- B62B7/08—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis
- B62B7/083—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis the wheel axes being moved from each other during folding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D63/00—Motor vehicles or trailers not otherwise provided for
- B62D63/06—Trailers
- B62D63/061—Foldable, extensible or yielding trailers
-
- 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 present invention relates to foldable devices for transporting loads, in particular to a fully foldable and continuously height-adjustable chassis which, depending on the attachment, can serve as a base for a stroller, a trolley or a transport trailer with different uses.
- Strollers have long been known from the prior art.
- the space requirement when not in use is often problematic.
- Strollers must be folded as small as possible, especially for transport.
- robustly constructed strollers cannot be folded into a minimal, compact and cuboid shape. This means that they are difficult to stack and stow with other suitcase-shaped items of luggage, e.g. in the trunk of a car. They also take up a lot of storage space there.
- the common folding method includes that after folding one of the two distances between the wheels, longitudinal or transverse to the direction of travel, remains and thus significantly influences the folding volume.
- Strollers with a particularly small folded size achieve this at the expense of robustness and design, as they have a particularly large number of joints and moving parts.
- Many purely mechanical strollers are difficult to handle, especially with regard to the conversion from a driving position to a transport position.
- At least one of the two processes, the complete opening or folding of the chassis must be carried out manually and is therefore more laborious than if the opening can be carried out by simply operating the lift and folding automatically at the push of a button. Folding a chassis should be as easy as possible for a user.
- the known strollers can only be transported when folded and cannot be carried next to them like a trolley case.
- the load caused by the weight of the folded stroller is considerable over long distances.
- the carrycot must be transported separately. This increases the number of bulky and heavy items of luggage that have to be carried, especially when traveling.
- the track width cannot be adapted to the circumstances and can be widened or narrowed as required. It is therefore not possible to either increase the stability of the track by widening the track width in uneven terrain or with a high center of gravity, or to narrow the track width in order to improve maneuverability in cramped conditions, such as in crowds or aisles of public transport.
- the chassis usually comprises two non-pivoting, large rear wheels which are connected to one another via a transverse axis, and two pivotable, single front wheels, or two non-pivoting, large wheels at the front and rear.
- No known stroller has four large wheels of the same size, all of which can be swiveled through 360 ° or locked in pairs as required.
- maneuverability cannot be optimally adapted to the circumstances and maximum maneuverability cannot be achieved, for example in very cramped conditions (restaurant, supermarket, crowds, etc.).
- a driving behavior or maneuverability change, or a seating or lying device has to be dismantled, rotated by 180 ° and reassembled in order to maintain the driving behavior or maneuverability.
- the suspension of known strollers if any, is usually attached externally as a movable part.
- An externally attached suspension increases the volume and weight, its visibility usually impairs the appearance and wears out with increasing use of the stroller.
- the seat height difference between the lowest and the highest position is a maximum of 20 cm. Thus, lying or sitting devices are still too low for particularly tall parents, even in their highest position.
- the lying position In its lowest position, on the other hand, the lying position is still too high for sitting parents to have eye contact with their child.
- a child who can already walk cannot get in and out of the seat device independently, so that instead it always has to be lifted in and out.
- Strollers that are adjustable in height work without counter pressure, which partially compensates for the weight of the child, so that the height can only be adjusted with difficulty or not at all when the child is sitting or lying in the stroller.
- a child In order to make a height adjustment, a child must always be taken out of the car before the height adjustment can be made.
- Known chassis cannot be converted universally and modularly from a stroller to a truck for other transport options, such as shopping carts, boiler carts or tool carts, due to their design.
- Known transport trolleys do not offer the following options at the same time: modular, exchangeable transport units and height adjustment of the transport unit and removal of the transport unit and automatic reduction of the chassis to a minimum folding size without dismantling.
- the chassis of the device for transporting loads has a minimal folding size, as a stroller including or excluding the lying or sitting device, sun canopy, mattress and storage devices.
- the folding size of the stroller with or without a bed or seat device can have the shape of a cuboid, so that the device can be stacked and stowed with other pieces of luggage like a Meiner suitcase, e.g. a hand luggage case. Components, especially the wheels, do not have to be dismantled in order to achieve the minimum folding size.
- the folded device can be transported with or without a lying or sitting device like a trolley on its push bar or can be parked free-standing.
- the construction allows the possibility of changing the track width of the device as required, so that, for example, its driving stability in difficult terrain can be increased by widening the track width.
- the chassis can have four large wheels, optionally of the same diameter, which can optionally be locked or at least completely freely pivotable in pairs.
- the device can also have a minimal folding size and weight, because a suspension can be integrated in its chassis and / or lift in the supporting structure.
- the chassis of the device can open automatically by actuating a height adjustment and fold purely mechanically or electromechanically at the push of a button.
- Loungers, seats or multifunctional attachments can be coupled to the device and, including their accessories such as a sun deck, a mattress or a storage device, can be folded onto the chassis in order to achieve a minimum folding dimension.
- a foldable device for transporting loads comprises a first platform; a chassis, the chassis including a plurality of arms and a plurality of wheels, each of the plurality of arms being rotatably coupled to the first platform and at least one of the plurality of wheels; and a device for aligning the plurality of cantilevers and the plurality of wheels configured to rotate each of the plurality of cantilevers and each of the plurality of wheels between at least an open and a folded state by a respective rotational angle, the plurality of Outriggers and the plurality of wheels in the folded state are arranged under the first platform.
- the foldable device comprises a lift, the lift comprising a plurality of foldable scissors, each of the plurality of foldable scissors being rotatably coupled to the first platform.
- each of the plurality of foldable scissors according to the second embodiment includes a first long arm, a second long arm, and a short arm, wherein the first long arm is foldable and the short arm is rotatably coupled to the second long arm.
- the foldable device according to the second or the third embodiment further comprises a second platform, the second platform being coupled to the lift so that it can be raised and lowered.
- the second platform according to the fourth embodiment comprises a plurality of guide rails, wherein the second long arm of each of the plurality of foldable scissors is rotatably coupled to at least one of the plurality of guide rails.
- the plurality of guide rails according to the fifth embodiment each comprise a slide for raising and lowering the lift.
- the second platform according to any one of the fourth to sixth embodiments comprises a cable pull system for raising and lowering the lift.
- the second platform according to any one of the third to seventh embodiments further comprises a plurality of gas springs for raising and lowering the lift, which are configured to resiliently lock the lift.
- the second platform according to any one of the third to eighth embodiment further comprises a plurality of operating elements or servomotors for raising and lowering the lift.
- the foldable device according to any one of the second to ninth embodiments further comprises a foldable attachment, the foldable attachment configured to be coupled to the second platform.
- the foldable attachment according to the tenth embodiment surrounds the foldable device in the folded state in a U-shape.
- the foldable device according to any one of the first to eleventh embodiments has a parallelepiped shape in the folded state. 4. Brief description of the drawings
- FIG. 1 shows a perspective overall view of an exemplary embodiment of a device for transporting loads with a bed in an open state.
- FIG. 2 shows a perspective overall view of an exemplary embodiment of a device for transporting loads with a bed in a folded state.
- Fig. 3 shows three true-to-scale projections (side view A; plan view (from above) B; plan view (from below) C) of an exemplary embodiment of a chassis in an open state, coupled with a lower platform, a lift and an upper platform, as well as a Swivel slide.
- FIG. 4 shows three true-to-scale projections (side view A; top view (from below) B; front / rear C) of an exemplary embodiment of a chassis in a fully folded state, coupled with a lower platform, a lift and an upper platform, as well as a swivel slide.
- FIG 5 shows three exemplary schematic embodiments of a coupling of the boom swivel joints by means of cables with or without drivers (top view A), linkage (top view B) and belts (top view C).
- FIG. 6 shows a perspective view of an exemplary embodiment of a lift in an open state, coupled to a lower and an upper platform.
- FIG. 7 shows a true-to-scale front or rear projection (A) and a true-to-scale projection (top view (from below) B) of an exemplary embodiment of a lift in an open state, coupled to an upper platform.
- FIG. 8 shows a true-to-scale front or rear projection (A) and a true-to-scale projection (top view (from below) B) of an exemplary embodiment of the lift according to FIG. 6 in a folded state, coupled to an upper platform.
- FIG. 9 shows a perspective view of an exemplary mechanism for stepless lifting, lowering and locking of an exemplary embodiment of the lift in an open state, coupled with a lower and an upper platform.
- FIG. 10 shows a schematic representation of a mechanical coupling between a lift, a lower platform and a boom of a chassis in a folded state (Scheme A, lift and chassis folded) and in an open state (Scheme B, lift and chassis open) according to an exemplary embodiment.
- Fig. Li shows a schematic representation of a mechanical coupling between a lift, a lower platform and a boom of a chassis during the transition from an open state (A, lift and chassis open) to a folded state (B, lift and chassis folded) according to a exemplary embodiment.
- FIG. 12 shows three perspective views of an exemplary embodiment of a mechanical coupling of the lower platform to a boom and a mechanical coupling of the boom to a steering fork.
- FIG 13 shows a perspective overall view of an exemplary embodiment of a foldable, three-part bed in an open (view A, without sun canopy) and a folded state (view B, with sun canopy).
- FIG 14 shows a perspective overall view of an exemplary embodiment of a foldable, three-part seat in an open state (view A, without sun canopy) and in a folded state (view B, with sun canopy).
- FIG. 15 shows a perspective overall view of an exemplary embodiment of a foldable, three-part multifunctional platform in an opened and a folded state.
- the foldable device 1000 includes a chassis 1100, a lower platform 1200, a Lift 1300, an upper platform 1400, an attachment 1500 such as a lounger, a seat or a multifunctional platform, as well as a swivel slide 1600.
- the individual assemblies 1100 to 1600, their couplings and their interaction when opening, folding, adjusting and locking the individual assemblies 1100 to 1600 or the device 1000 as a whole are described in detail below with reference to the figures.
- the device 1000 has a modular design and can optionally be designed for transporting children or for transporting objects.
- Fig. 2 shows the device shown in Fig. 1 in a folded state 2000.
- the device can be used both with and without an attachment 2500 (couch, seat, multifunctional platform, etc.) including its accessories (eg a sun canopy or a mattress (not shown )) can be transferred from an open state (see FIG. 1) to a folded state 2000 in any driving position and without dismantling individual components.
- the device In the folded state 2000, the device can have the shape of a cuboid, so that the device has a minimal folding dimension.
- the folding of the chassis 2100 from the open (cf. FIG. 1) to a folded state 2000 can take place automatically and purely mechanically “at the push of a button”, as explained in detail with reference to the following drawings.
- the device In the folded state 2000, the device can be transported on the chassis 2100 in a rolling manner on its wheels, which are aligned parallel under the lower platform 2200, in a manner comparable to a trolley case.
- a handle of a swivel slide 2600 can be extended or shortened telescopically. If the swivel slide 2600 is shortened telescopically, the device 2000 can be raised in the folded state in order to stow it away, for example. Due to the shape of a cuboid, with or without an attachment 2500, the device can be stacked in the folded state 2000 to save space, e.g. with other cuboid pieces of luggage such as suitcases.
- the folded dimension of the device in the folded state 2000 can meet the recommendation of the International Air Transport Association (IATA), without the attachment 2500 (base frame), according to which the sum of the length, width and height of an item of luggage should not exceed 115 cm.
- IATA International Air Transport Association
- Open state - true-to-scale projections 3 shows three true-to-scale projections of an exemplary embodiment of a chassis 3100 in an open state, coupled with a lower platform 3200, a lift 3300 and an upper platform 3400, as well as a swivel slide 3600 (device 1000 in FIG. 1 without an attachment / base frame) .
- a height of the upper platform 3400 with respect to the lower platform 3200 can be adjusted and resiliently or firmly locked by actuating the lift 3300 via an operating element that is attached to the side of the upper platform 3400, for example.
- the height can be adjusted between a minimum height of 0 cm up to a maximum height of 35 cm. In other embodiments, other minimum and maximum heights are possible, depending on the specific use of the device.
- the height can be adjusted continuously.
- the swivel slide 3600 further comprises a slide handle 3610, which is rigidly coupled to two telescopic arms 3620 on the left and right.
- the two telescopic arms 3620 each comprise an upper part arm that can be telescopically pulled out of a lower part arm and locked, whereby a length of the swivel slide 3600 can be changed and, for example, adapted to a size of a user.
- the lower sub-arms of the swivel slide 3600 are each rotatably and displaceably coupled to the lower platform 3200 at their lower ends via a slide swivel joint 3240.
- the slide swivel joint 3240 enables the angle of the pivot slide 3600 to be changed with respect to the lower platform 3200.
- the pivot slide 3600 can be locked at any angle with respect to the lower platform 3200.
- the swivel slide 3600 can be adapted to a size of a user or adapted for a direction of travel or driving style without changing an alignment of an attachment.
- it can also be avoided, for example, that a bed or a seat has to be rotated by 180 ° if eye contact with a child in the bed or seat is to be made possible.
- lockable brackets 3110 are rotatably coupled to the lower platform by bracket swivel joints 3140 in the corner areas thereof.
- the angle ⁇ can be 90 ° or more.
- a track width can be changed by changing the angle.
- the lockable extension arms 3110 form an angle ⁇ , ⁇ , which is different in pairs with respect to the lower platform 3200.
- the four lockable arms 3110 are coupled to steering forks 3120, which are each coupled to a wheel 3130.
- the diameter of the wheels can differ in pairs, for example at the front and rear.
- the steering forks 3120 can be freely rotatable through 360 ° or can be locked in pairs, for example at the front or rear, in the direction of escape, so that the driving behavior of the chassis can be adapted in each direction of travel.
- the steering forks 3120 can be angled with respect to their vertical axis so that the wheels 3130 are automatically aligned in the direction of travel when they move freely (caster).
- FIG. 4 shows three true-to-scale projections of an exemplary embodiment of a chassis 4100 in a completely folded state, coupled with a lower platform 4200, a lift 4300 and an upper platform 4400, as well as a swivel slide 4600 (device 2000 in FIG. 2 without an attachment / base frame ).
- a completely folded state the front and the rear pair of the outriggers 4110 are rotated maximally to the wider sides of the lower platform 4200.
- the front and the rear pair can be arranged in mirror image in the projection of FIG. 4B.
- the extension arm 4110 can also be locked in this position.
- the steering forks 4120 of the two inner and two outer arms 4110 are each directed outwards, in the direction of the narrower sides of the lower platform 4200, so that a distance between the support points of the inner and outer wheels 4130 is maximized around the folded chassis 4100 to give the highest possible stability.
- the steering forks can also both be directed inwards or in pairs inwards or outwards.
- the steering forks 4120 can be locked in alignment parallel to the broad sides of the lower platform 4200, so that the folded chassis 4100 on the swivel slide 4600 can also be rolled over the floor like a trolley case.
- the extension arm 4110 can also be locked in other positions.
- the height of the upper platform 4400 with respect to the lower platform 4200 can be changed by actuating the lift 4300, so that the upper platform 4400 is directly on the lower platform 4200 lies.
- the upper platform 4400, the lift 4300, or the lower platform can be locked in this or in another position.
- the two upper partial arms of the vertically aligned swivel slide 4600 are pushed telescopically into or over the lower partial arms.
- the telescopically shortened swivel slide 4600 can be lowered through the slide swivel joint 4210 so far that the lower ends of the lower partial arms are just above the ground.
- the lower ends of the lower sub-arms can be equipped with ball casters to provide increased stability to the chassis 4100 when it is folded or in a folded state.
- FIG. 5 shows three exemplary schematic embodiments of a coupling of the boom swivel joints 5140 by means of cables with or without drivers (top view A), linkage (top view B) and belts (top view C).
- the extension arms 5110 are coupled to one another in such a way that they move one after the other at fixed intervals when the chassis is automatically opened and folded, so that the extension arms 5110, steering forks and wheels (not shown) do not block each other and the chassis during automatic opening and folding Balance remains.
- the coupling and the coordinated time delay of a movement of the boom 5110 can, for example, by means of cables with or without appropriately placed drivers (view A), by means of a linkage with different levers (view B) or by means of toothed belts and non-circular toothed belt wheels (view C) or by a Combination of these takes place.
- the boom 5110 can alternatively or additionally be moved and controlled electromechanically, for example by means of servomotors.
- FIG. 6 shows a perspective view of an exemplary embodiment of a lift 6300 in an open state, coupled to a lower 6200 and an upper 6400 platform.
- the 6300 lift is coupled to the lower 6200 and upper 6400 platforms.
- the lift includes two scissors 6310.
- the lift 6300 may include a plurality of scissors 6310.
- the scissors 6310 are each at least partially rotatably coupled to the lower and / or the upper platform.
- Each of the shown scissors includes a first long arm 6311, a second long arm 6312 and a short arm 6313.
- the first long arm 6311 is foldable.
- the first long arm 6311 includes a first portion that is rigidly connected to a first portion of the second long arm 6312. A second portion of the first long arm 6311 is rotatably coupled to the first portion of the first long arm 6311.
- a length of the second portion of the first long arm 6311 is substantially equal to a length of the short arm 6313.
- the short arm 6313 is rotatably coupled to the second long arm 6312.
- the second long arm 6312 includes the first section and a second section.
- a length of the second portion of the second long arm 6312 is substantially equal to the length of the short arm 6313 and the length of the second portion of the first long arm 6311, respectively.
- the first long arm 6311 and the short arm 6313 are each in a corner region of FIG
- the lower 6200 or the upper 6400 platform is coupled to the lower 6200 or the upper 6400 platform.
- the second long arm 6312 is coupled to a guide rail 6410 of the upper platform 6400 and is movable along the guide rail 6410.
- the second long arm 6312 of a first pair of scissors 6310 and the second long arm 6312 of a second pair of scissors 6310 can be coupled to the same guide rail 6410 or to a respective different
- the guide rail 6410 extends in a direction perpendicular to the pushing or pulling direction of the device for transporting loads substantially across a width of the upper platform 6400.
- the guide rail 6410 is substantially in a center with respect to the length perpendicular to the width of the Upper platform 6400 arranged to ensure the stability of the lift under load.
- the upper platform 6400 can also comprise a plurality of guide rails which are arranged in different areas of the upper platform 6400 and have different lengths.
- the guide rail 6410 is essentially the same length as the first 6311 or the second 6312 long arm and essentially twice as long as the length of the short arm 6313.
- other length ratios are also possible.
- FIG. 7 shows a true-to-scale front or rear projection (A) and a true-to-scale projection (top view (from below) (B)) of an exemplary embodiment of a lift 7300 according to FIG. 6 in an open state, coupled to an upper platform 7400.
- the lift 7300 comprises two scissors 7310, each comprising a first 7311 and a second 7312 long arm and a short arm 7313.
- the short arm 7313 is long with the second Arm 7312 and upper platform 7400 coupled.
- the short arm 7313 forms an angle g with the second long arm 7312.
- the angle g in the fully opened state is approximately 45 °.
- the angle g in the fully open state can be less than 45, for example 0 ° ⁇ g ⁇ 45 °, 10 ° ⁇ Y ⁇ 35 °, or 20 ° ⁇ g ⁇ 25 °.
- the angle g is decreased (lifting) or increased (lowering) by holding the coupling of the short arms 7313 with the upper platform 7400 with respect to the upper platform 7400, while the coupling of the second long arms 7312 with of the upper platform 7400 are moved in opposite directions along the common guide rail or the respective guide rail away from the coupling of the respective short arm 7313.
- the height of the lift 7300 can be adjusted continuously between a folded state and an open state and can be locked at any height.
- the maximum height of the lift 7300 in the fully opened state is essentially the same as the length of the first 7311 or the second 7312 long arm.
- the first long arm 7311 of a respective weight 7310 is foldable.
- the first long arm 7311 includes a first portion that is rigidly connected to a first portion of the second long arm 7312, and a second portion that is rotatably coupled to the first portion of the first long arm 7311 (foldability).
- the second section is rotatably coupled to the upper platform 7400 at an end opposite the coupling to the first section in a first corner region of the upper platform 7400.
- the first section is rotatably coupled at an end opposite the coupling to the second section in a first corner area of the lower platform (not shown, see e.g. reference numeral 6200 in Fig. 6).
- the first corner regions of the lower and the upper platform 7400 lie essentially on top of one another in the depicted true-to-scale projection (from below) (B).
- the respective first and second sections of the first long arms 7311 can, however, also be coupled to the lower or the upper platform 7400 in other areas of the lower or the upper platform 7400 in order to increase the stability of the construction with regard to the action of external forces as required to optimize.
- the second long arm 7312 is at one end in a second corner region of the lower platform (not shown, see, for example, reference numeral 6200 in FIG. 6) and at an end opposite the end of the second long arm 7312 with the upper platform 7400 or the Guide rail 7410 rotatable with the lower and upper platform 7400 respectively coupled.
- the short arm 7313 is coupled to the upper platform 7400 in a second corner area of the upper platform 7400.
- the second corner regions of the lower and upper platform 7400 are substantially on top of one another in a true-to-scale projection (from below) (B).
- the second long arm 7312 can also be coupled to the lower or upper platform 7400 in other areas of the lower platform 7400, for example in an edge area of the lower platform 7400.
- the second long arm 7312 of a respective pair of scissors 7310 comprises a first section and a second section.
- the first sections of the first 7311 and second 7312 arms form a unit.
- the unit includes a recess to allow a second portion of a second long arm 7312 of a second pair of scissors 7310, which form at least part of a lift 7300 with the first scissors 7310, into the recess of the unit when adjusting the height of the lift 7300 the opposite pair of scissors 7310 to intervene.
- the recesses are designed in such a way that the lower and upper 7400 platforms can rest directly or almost directly on one another when the lift 7300 is folded.
- the two scissors 7310 are both arranged point-symmetrically and configured point-symmetrically relative to one another.
- the two scissors 7310 are arranged symmetrically with respect to an axis of rotation (rotation by 180 °). In this way, for example, production costs can be reduced and the degree of isotropy of the stability of the construction, e.g. with regard to rotary, translational, compressive and tensile forces, can be increased.
- the lift 7300 comprises a plurality of scissors 7310
- the scissors 7300 are respectively arranged in pairs.
- FIG. 8 shows a true-to-scale front or rear projection (A) and a true-to-scale projection (top view (from below) (B)) of an exemplary embodiment of the lift 8300 according to FIG. 6 in a folded state, coupled to an upper platform 8400.
- the scissors 8310 engage in one another under the upper platform 8400 in the folded state (cf. FIG. 7), so that the lower platform (not shown) and the upper platform 8400 essentially lie on top of one another (cf. FIG. 4 C).
- the upper platform 9400 comprises the mechanism for continuously raising, lowering and locking the lift.
- the mechanism includes a lockable gas pressure spring 9420, which can counteract a force that acts on the lift.
- the mechanism can comprise a multiplicity of other or further components that support the raising or lowering of the lift.
- the mechanism can comprise several gas pressure springs 9420.
- the gas spring 9420 may further include a plunger 9421 and a cylinder 9422.
- the cylinder 9422 is fixedly coupled to the upper platform 9400, while the plunger 9421 is movable along a cylinder axis.
- the mechanism further comprises a trigger system 9430 with a multiplicity of operating elements 9431.
- the trigger system 9430 can also include only one, two or three operating elements 9431.
- the plunger 9421 can be locked or released by actuating one or more of the plurality of operating elements 9431 by means of the trigger system 9430 in order to lock the lift or to raise or lower the lift.
- the mechanism comprises two guide rails 9410.
- the guide rails 9410 each comprise a slide 9411.
- each guide rail 9410 can also comprise a plurality of slides 9411.
- a carriage 9411 is each rotatably coupled to a second long arm (see e.g., reference numeral 6312 in Fig. 6).
- the mechanism further comprises a cable system 9440.
- the carriages 9411 are coupled to one another with the gas pressure spring 9420 via the cable system 9440.
- the carriages 9411 are also coupled to one another by a cable pull system 9440.
- the carriages 9430 can be coupled to the plurality of components that support the raising or lowering of the lift via a corresponding cable pull system. Other couplings, such as belts or rods, are also possible.
- the carriages 9411 move linearly, synchronously and in the opposite direction between a first end and a second end of the guide rails 9410 and thus change the angle g (cf. FIGS. 6 and 7 and the associated description).
- the upper platform 9400 is held in a stable horizontal position with respect to the lower platform 9200, essentially parallel to the lower platform 9200.
- the cable pull system 9440 forms a pulley block via movable (deflection) rollers 9441, by means of which a stroke of the plunger piston 9421 is doubled.
- a head of the plunger 9421 comprises two superposed, with respect to the Upper platform 9400 horizontally aligned movable rollers 9441.
- Two first rollers 9442 which are fixed and horizontally arranged with respect to the upper platform 9400 are fastened in opposite edge regions of the upper platform 9400 to that of the upper platform 9400.
- the cable system 9440 may include one or more cables.
- the cable pull system 9440 comprises two first cables, each of which is fastened to the upper platform 9400 at a first end in the opposite edge regions.
- the two first ropes are essentially the same length and run essentially in mirror image from their respective attachment to the upper platform 9400 via the movable rollers 9441 to each slide 9411, to which the ropes are attached at a second end.
- the carriages 9411 are pulled in opposite directions with half the force of the gas pressure spring 9420, but twice as far.
- the cable pull system 9440 further comprises two second cables in order to ensure the synchronous, counter-rotating movement of the carriages 9411.
- the two second ropes couple the two carriages 9411, for example via two second rollers 9443, which are arranged fixedly and horizontally aligned with respect to the upper platform 9400 in a respective end region of a guide rail 9410.
- the two second ropes are essentially of the same length and form a closed shape with the carriages 9430.
- the cable pull system 9440 can also include toothed belts, rods, non-round wheels, etc., in combination with cables or other means that are suitable for transmitting a force to the scissors of the lift (see e.g. Fig. 6).
- the locking of the plunger 9421 can be released for the duration of the actuation and the height of the lift can thus be continuously adjusted.
- the plunger 9421 can be locked again, whereby the carriage 9431 coupled via the cable system 9440 and the lift scissors coupled to the carriage (see e.g. reference number 6310 in Fig. 6) are locked in their respective positions .
- the plunger 9421 of the gas pressure spring 9420 can be resiliently locked in the corresponding position.
- the lift as a whole construction can be equipped with a suspension to cushion vibrations of the chassis or abrupt changes in the weight of the lift's carrying load, for example caused by the movements of a small child.
- the construction can comprise additional or alternative suspension systems for springing individual areas or the entire lift.
- the suspension systems can be integrated in one or more of a plurality of the components of the assemblies of the device for transporting loads.
- the components of the assemblies of the device for transporting loads.
- tension or torsion spring elements which are integrated, for example, in the cable pull system 9440 or in the gas pressure spring 9420.
- locking the lift can additionally or alternatively also include locking the carriages 9430 against the guide rails 9410, for example by latching or clamping.
- locking the carriages 9430 By actuating at least one corresponding control element via a corresponding release system, the locking of the slide 9430 can be released for the duration of the actuation, so that the height of the lift can be adjusted continuously or at least in fine steps.
- the lift can alternatively or additionally be electrically adjusted and / or controlled, for example by means of servomotors or a controller.
- the weight on the lift counteracting bias or shear forces, which can be provided for example by bias springs in the lower 9200 or the upper platform 9400, support the adjustment of the lift when raising or lowering the lift.
- Fig. 10 shows a schematic representation of a mechanical coupling between a lift (not shown, see, for example, Fig. 6, Fig. 7 and Fig. 8), a lower platform and a boom of a chassis in a folded (Scheme A, lift and Chassis folded) and in an open state (scheme B, lift and chassis open) according to an exemplary embodiment.
- the lift to simplify the illustration only a pair of scissors 10310 of the lift is shown
- the booms to simplify the illustration only one boom 10110 is shown
- the scissors 10310 are coupled to an energy store, for example with a gas pressure spring 10235, via an angle lever 10314 Angle lever 10314 can be rotated about a pivot point 10315, for example by coupling the scissors 10310 to the lower platform.
- the gas pressure spring 10235 is coupled to a steering wheel 10220, which comprises a free movement space 10221 which runs radially to the center of the steering wheel 10220 and is divided by a steering wheel pawl 10222.
- the steering wheel 10220 is in a first position (folded undercarriage) in the folded state by a lock locked, for example by a locking bolt 10223.
- the steering wheel 10220 is coupled to the boom 10110 via a cable 10210.
- the steering wheel 10220 and the boom (s) 10110, as well as the booms with one another, can also be coupled to one another by one or more of belts, rods and other mechanical couplings (cf. FIG. 5).
- An energy store for example a helical tension spring 10231, is rigidly coupled to a driver 10232 which is loosely (displaceably) coupled to a cable 10210.
- a driver 10232 on the helical tension spring 10231 a driver 10212 on the cable 10210, which is rigidly coupled to the cable 10210, can be displaced.
- the cable 10210 can be moved, for example, in a pulling direction of the helical tension spring 10231 when the rigidly coupled driver 10212 on the cable 10210 lies in a pulling path of the displaceable driver 10232 on the helical tension spring 10231.
- a helical tension spring 10231 is tensioned against its pulling direction, the helical tension spring 10231 and the cable pull 10210 can be decoupled from one another.
- the helical tension spring 10231 can be locked, for example by a tension spring pawl 10233.
- the energy stored therein can correspond to the maximum storage capacity of the energy store.
- the tension coil spring 10231 can be tensioned by moving the scissors 10310 of the lift to a lowest position.
- the helical tension spring 10231 can be tensioned via an angle lever 10314, which is coupled to the relaxed helical tension spring 10231 via a Bowden cable 10234.
- the tensioned helical tension spring 10231 can be held in a tensioned position by means of a tension spring pawl 10233. When the tensioned coil tension spring 10231 is held by the tension spring pawl 10233, it is decoupled from the lift and the lift can be moved freely.
- the lift can be moved to a highest position.
- the clearance disappears when the tensioned helical tension spring 10231 releases its stored energy and the helical tension spring 10231 and the scissors 10310 of the lift are coupled to one another again via the Bowden cable 10234.
- the energy required to open the chassis is provided by a gas pressure spring (not shown, cf. reference number 9420 in FIG. 9). By pressing the lift down to its lowest position, energy can be stored in one or more lockable gas pressure springs in the upper platform.
- the gas pressure spring can be triggered via an operating element (not shown) which can be attached, for example, to a slide handle or to the side of an upper platform (not shown).
- the chassis can now be opened “at the push of a button” by actuating an operating element (not shown), for example via a WLAN signal.
- an operating element for example via a WLAN signal.
- a locking bolt 10223 is released by, for example, a lifting magnet (not shown) and the steering wheel 10220 is thereby unlocked, whereby the compressed gas pressure spring 10235 can move the steering wheel 10220 by pressing a steering wheel pawl 10222.
- the steering wheel 10220 is rotated from a first position (folded undercarriage) to a second position (open undercarriage).
- a cable pull 10210 coupled to the steering wheel 10220 transmits the rotary movement to the boom 10110 so that they fold out.
- the unfolding of the boom 10110 takes place with a time delay so that they do not block each other when unfolding and the chassis remains stable and does not tip over (see FIG. 5).
- the time delay can be effected by the cable 10210 described here and correspondingly placed drivers (not shown).
- the time delay can take place by coupling the booms 10110 to one another independently of the cable pull 10210 (see FIG. 5), or by a combination of the above-mentioned exemplary embodiments.
- a locking bolt 10223 can automatically lock the steering wheel 10220 in a second position (open landing gear). By locking the steering wheel 10220, the arms 10110 coupled via the cable 10210 can also be locked in an open position.
- the brackets 10110 can be locked in the open position alternatively or additionally as well as separately and independently of the coupling with the steering wheel 10220 described here.
- the mechanical couplings can alternatively or additionally have a large number of the components shown, such as, for example, further cables, rods, toothed belts, non-round wheels, energy stores or locks.
- FIG 11 shows a schematic representation of a mechanical coupling between a lift (not shown, cf., for example, FIGS. 6, 7 and 8), a lower platform and a boom of a chassis at the transition from an open one (A, lift and chassis opened) to a folded state (B, lift and chassis folded) according to an exemplary embodiment.
- the energy for the automatic folding of the chassis is provided by an intermediate energy store, for example a helical tension spring 11231.
- the automatic folding of the chassis “at the push of a button” can be triggered by actuating an operating element (not shown) by which a locking bolt 11223 is released and the steering wheel 11220 is unlocked at the same time, for example by lifting magnets (not shown) activated wirelessly via a WLAN signal , a steering wheel pawl 11222 is released and a free movement space 11221 of a coupling of the steering wheel 11220 and the gas pressure spring 11235 is completely released and a tension spring pawl 11233 is released and a coil tension spring 11231 is released.
- the released helical tension spring 11231 can transfer its stored energy via the driver 11232 on the helical tension spring 11231 to the driver 11212 on the cable 11210 and thus transfer its pulling path to the cable 11210, which thereby moves counterclockwise.
- Several drivers can be coupled to the cable 11220 in order to fold in the boom 11110.
- the folding in of the outriggers 11110 takes place with a time delay so that they do not block each other when folding in and the chassis always remains stable and does not tip over (see FIG. 5).
- the time delay can be effected by the cable pull 11210 described here and correspondingly placed drivers (not shown). Alternatively or additionally, the time delay can take place by coupling the booms 11110 to one another independently of the cable pull 11210 (see FIG. 5), or by a combination of the above-mentioned exemplary embodiments.
- the steering wheel 11220 When folding in, the steering wheel 11220 is rotated from a second position (open landing gear) to a first position (folded landing gear) and is automatically locked by a locking bolt 11223. Furthermore, the clearance 11221 of the Bowden cable 11234 disappears due to the shortening of the tension coil spring 11231, the Bowden cable is tensioned.
- the tension coil spring 11231 When the lift is manually lowered from the highest to the lowest position, the tension coil spring 11231 is tensioned by turning an angle lever 11314 on the scissors 11310 of the lift, which is coupled to the tension coil spring 11231 via a Bowden cable 11234. The tensioned helical tension spring 11231 can finally be held in a tensioned state by a tension spring pawl 11233.
- the gas pressure spring 11235 is also pulled into its position in the folded state by turning the angle lever 11314. In this position, the gas pressure spring 11235 is coupled again to the steering wheel 11220 in the freedom of movement in the steering wheel 11220, in that the steering wheel link 11222 divides the freedom of movement 11220 again behind a head of the piston rod of the gas pressure spring 11235. This allows the lift and steering wheel 11220 to be coupled to one another again.
- the opening and folding of the chassis can be supplemented electromechanically or completely or partially replaced by electromechanical means.
- the opening and folding of the chassis can also be realized with only partial or without force assistance and with only partial or without coupling of the individual movement sequences. 5.6 Coupling lower platform - boom - steering forks - perspective views
- Fig. 12 shows three perspective views of an exemplary embodiment of a mechanical coupling of the lower platform 12200 with a boom 12110 and a mechanical coupling of the boom 12110 with a steering fork 12120.
- the steering forks 12120 can be automatically aligned in an intended end position (cf. Fig. 4).
- the steering forks 12120 can either rotate freely through 360 ° in pairs, front or rear, or be locked in alignment with the direction of travel of the chassis.
- Both processes - the automatic alignment of the wheels when folding, and the paired locking or releasing of the steering forks 12120 in the open state - can, for example, by a mechanical coupling of swivel joints 12121 of the steering forks with the booms 12110 and of swivel joints 12140 of the booms with the lower platform 12200 can be checked or controlled.
- All steering forks 12120 can be rigidly coupled to vertical axes 12122, which are rigidly coupled to toothed belt wheels 12123, which are coupled via toothed belts 12160 to toothed belt wheels 12143, which are rotatably coupled to vertical axes 12142, which are rigidly connected to the arms 12110 and rotatable to the lower platform 12200 are coupled.
- the steering forks 12120 and the wheels coupled to them are locked in pairs at the front and / or rear by activating locking bolts 12144 on toothed belt wheels 12143 using, for example, lifting magnets (not shown), which can be controlled, for example, via WLAN by operating an operating unit (not shown) .
- the activated locking bolts 12144 can engage in pairs in toothed belt wheels 12143 as soon as the wheels to be locked (not shown) are correctly aligned by pushing the chassis back and forth (cf., for example, reference numeral 1100 in FIG. 1).
- the activated locking bolts 12144 can lock the steering forks 12120 via coupled toothed belts 12160. This allows the alignment of the wheels to be determined.
- the wheels can automatically align in the directions of movement of the boom 12110 by slightly inclining the forks (caster) and roll over the ground at any time without dragging or blocking.
- the wheels can be essentially at a right angle to the booms 12110 in the course of the caster. In their end positions, the wheels can be rotated by approx. 90 ° to their previous running direction in the course of the caster, for example when folding parallel to the wider sides of the lower platform 12200 (see FIG. 4).
- the automatic alignment of the steering forks 12120 when folding the chassis can be achieved, for example, by mechanically coupling the swivel joints 12121 of the steering forks with rotary movements on the swivel joints 12140 of the boom.
- the rotary movements of the boom 12110 for opening and folding the chassis are brought about and controlled by pinions 12141.
- the pinions 12141 can transmit the rotary movements via vertical axes 12142 to the boom 12110.
- gears 12150 which can be displaced via threads 12151 and are secured against rotation on the lower platform 12200 are displaced axially in the direction of the toothed belt wheel 12143.
- a displaceable gear 12150 forms a claw coupling with a toothed belt pulley 12143:
- claws of a displaceable gear 12150 engage in freedom of movement 12145 of a toothed belt pulley 12143 and rotate it coupled with it.
- a rotary movement of a toothed belt pulley 12143 is transmitted via a coupled toothed belt 12160 to a steering fork 12120, which turns a wheel (not shown) into an intended end position (see FIG. 4).
- a constant or variable translation can be generated between the two, through which a choreography of movement sequences of the boom 12110 and alignments of the wheels (not shown) when the chassis is folded out and in can be optimized.
- the extension arms 12110 are unfolded in the reverse order and mode of operation.
- the steering forks can alternatively or additionally be moved and controlled electrically, for example by servomotors.
- a support structure of the cot 13500 includes a foldable lower frame 13510 and a foldable upper frame 13530.
- the lower 13510 and upper 13530 frames are supported by a foldable side panel
- the foldable side wall 13520 can comprise two tension brackets 13521 and eight crossed tension wires 13523.
- the open bed 13500 is stable in itself as an attachment and can be used separately as such.
- the couch 13500 can be coupled to the upper platform (not shown, cf. e.g. Fig. 1, reference number 1400) and decoupled from it again.
- the lower 13510 and upper 13530 frames are foldable and each comprise two side frame segments 13511 and 13531 and a middle frame segment 13512 and 13532.
- the upper middle 13532 and side 13531 frame segments are rotatably coupled on their underside by four spring hinges (not shown), which Allow the lateral frame segments 13531 to be angled from the horizontal by 90 ° exclusively downwards into the vertical.
- the spring force of the spring hinges (not shown) counteracts an angling of the side frame segments 13531 downwards into the vertical and supports their folding up into the horizontal.
- the lower middle 131512 and side 13511 frame segments are also rotatably coupled on their upper side by four spring hinges (not shown), which allow the side frame segments 13511 to be angled from the horizontal by 90 ° downwards into the vertical and upwards beyond the horizontal.
- the spring force of the spring hinges causes the side frame segments 13511 to be angled downwards into the vertical and supports their folding up into the horizontal.
- the lower middle 13512 and side 13511 frame segments are additionally rotatably coupled by 4 locking fittings 13514, which - like the 4 spring hinges (not shown) - allow the side frame segments 13511 to be angled 90 ° downwards from the horizontal into the vertical. If the lower lateral frame segments 13511 are folded from the vertical into the horizontal, the locking fittings 13514 snap into place.
- the ends of the lower middle 13512 and side 131511 frame segments are shaped in such a way that, in an open, horizontal position, they close visually almost seamlessly to the outside thanks to a cover 13515.
- the lower frame 13510 and the upper frame 13530 are linked by 2 foldable tensioning brackets 13521 and crossed tensioning wires 13523.
- the upper lateral frame segments 13531 are rotatably coupled on the underside with a clamping bracket 13521 in each case.
- High-torque torsion springs 13522 press the clamps 13521 downwards in the vertical direction against the lower lateral frame segments 13511, where they engage in locking levers (not shown).
- a 3-part floor 13540 On the top of the lower frame 13510 is a 3-part floor 13540.
- the head part of the floor 13541 includes a flap 13542 with which a 3-part mattress lying on the floor can be tilted so that a child can be bedded in a semi-sitting position
- the 13542 flap is locked by means of torque hinges 13543.
- a support bracket 13550 for the bed 13500 is rotatably coupled in the middle to the upper middle frame segment 13532.
- the retaining bracket is attached by two lock tongues on the underside of the ends of the retaining bracket, which can be anchored in receiving locks on the top of the middle upper frame segments.
- an operating unit In the middle of the retaining bracket is an operating unit with which the lock tongue can be released and the retaining bracket removed.
- the solution is possibly provided by Bowden cables, which are laid within the retaining bracket between the control unit and the lock tongue.
- neodymium permanent magnets are embedded on the top, through which the sun canopy can be attached to the lounger.
- the side wall of the lounger is enclosed on the outside by a textile fabric folded in origami. Origami folding is a symmetrically repeating sliding reflection. If the upper frame is lowered onto the lower frame, the side wall of the tub folds up precisely vertically. On the undersides of the two middle lower frame segments there is a lock tongue with which the bed can be docked in the two receiving locks on the top of the upper platform.
- the actuation units for unlocking the lock tongue of the attachment are attached so that the tub can be removed from the chassis.
- two clamping brackets 13521 coupled to the upper lateral frame segments 13531 are manually released from their locking position by means of locking levers (not shown) below the lower lateral frame segments 13511 (at the head and foot end of the lower frame 13510) Manually press the upper frame 13530 vertically downwards onto the lower frame 13510, the tensioning brackets 13521 being pressed into a horizontal position against a force of the torsion springs 13522 for the lower middle frame segment 13512.
- laterally grooves are embedded in the upper side of the lower lateral frame segments 13511, on which the lower, freely movable corners of the clamping brackets 13521 slide along when the bed 13500 is opened and folded.
- the lower lateral frame segments 13511 are angled upwards at an acute angle in order to release the locking of the locking fittings 13514 between lower central 13512 and lateral 14511 frame segments by switching.
- the entire bed, including the mattress (not shown) and sun canopy 13560, can then be folded down into a vertical position.
- a retaining bracket 13550 rotatably coupled to the upper middle frame segments 13532 is folded over from the vertical to the horizontal.
- the folded bed 13500 encloses the folded base frame (not shown, see FIG. 2).
- the lounger 13500 can be folded up with the sun canopy 13560.
- the lower side and upper side frame segments 13511, 13531 lie on top of one another are first brought from their vertically downwardly folded position 90 ° upwards into the horizontal. There the locking fittings automatically snap into place between the lower middle 13512 and the lateral 13511 frame segments, so that the lower frame 13510 remains rigid. Due to the spring forces of the spring hinges (not shown) between the lower frame segments 13511 and 13512 and the upper frame segments 13531 and 13532, and due to the spring forces of the leg springs on the clamps 13521, the upper frame of the tub rises automatically and pulls the side wall of the bed with it.
- a load-bearing structure comprises a three-part frame.
- the three-part frame comprises a frame segment in the form of a backrest 14710 and a frame segment in the form of a leg rest 14730, which are rotatably coupled to a central frame segment in the form of a seat part 14720.
- a retaining bracket 14750 is rotatably coupled to the seat part 14720.
- the retaining bracket is fastened by two lock tongues on the underside of the ends of the retaining bracket, which can be anchored in receiving locks on the upper side of the middle frame segments.
- an operating unit In the middle of the retaining bracket is an operating unit with which the lock tongue can be released and the retaining bracket removed.
- the solution is possibly provided by Bowden cables, which are laid within the retaining bracket between the control unit and the lock tongue.
- neodymium permanent magnets are embedded on the top of the frame, through which the sun canopy can be attached.
- a textile cover for example, is made of 3D-knitted fabric and is removably attached using a piping system.
- the backrest 14710 and the leg rest 14730 can have a
- Stretching scissors mechanism 14740 for the infinitely variable and symmetrical or asymmetrical adjustment of the angle of incidence of the backrest 14710 and the leg rest 14730 can be coupled.
- the extension scissors mechanism 14740 can be coupled to a resiliently locking gas spring 14746 for locking the backrest 14710 and the leg rest 14730.
- the extension scissors mechanism 14740 and the gas spring 14746 can also be coupled to the seat part 14720.
- the gas springs 14746 are each rotatably coupled to the left and right with lever arms 14731 of the leg rest or, as in the exemplary embodiment shown, with lever arms 14711 of the back rest.
- Lever arms are extensions of the frame segments of the backrest 14710 and leg rest 14730 beyond their rotatable coupling with the seat part 14720.
- a pressure from gas pressure springs 14746 supports the folding up or down of the backrest 14710 from a horizontal to a vertical position (> -90 ° or ⁇ + 90 °).
- a resilient blocking of the gas spring 14746 by an operating unit (not shown) locks the backrest 14710 in a desired position.
- a resilient blocking of the gas springs 14746 allows the backrest 14710 and leg rest 14730 to cushion loads, which increases seating comfort.
- the gas pressure springs can be triggered by a control element attached to the front of the backrest, which controls both gas springs, e.g. synchronously, via a hydraulic system.
- extension scissors mechanism 14740 With the extension scissors mechanism 14740, a change in a point of application of a lever arm of the backrest 14712 can be transmitted synchronously to a point of application of a lever arm of the leg rest 14732.
- the points of application 14712 and 14732, as well as 14743 and 14744 of the extension scissors mechanism 14740 can be point-symmetrical to a center point of the extension scissors 14742.
- the backrest 14710 takes the seat 14700 in an opened state at an angle a of +45 to 0, a lever arm of the backrest 14711 an angle ß of -135 to 0, the leg rest 14730 an angle g from -45 0 and a lever arm of the leg rest 14731 an angle d of +135 0 . If an angle ⁇ of the backrest 14710 is changed between the horizontal and the upward directed vertical (between 0 ° and 90 °), an angle ß of a lever arm 14711 of the backrest changes analogously between the horizontal and the downward directed vertical (between -180 0 and -90 0 ).
- a coupled point of application 14743 of the stretching scissors changes. If a distance between a point of application 14743 and a rotatably fixed center point 14742 of the stretching scissors changes, a point of attack 14744 changes point-symmetrically to a rotatably fixed center point 14742 of the stretching scissors in an opposite direction.
- point 14744 of the extension scissors to a point 14732 of a lever arm of the leg rest, this changes its position point-symmetrically to a point of application 14712 of a lever arm of the backrest and changes an angle d identical to an angle ⁇ and an angle g identical to an angle a.
- every change in an angle a of the backrest 14710 between the horizontal and the upward directed vertical is coupled point-symmetrically by a scissor mechanism 14740 with an angle g of the leg rest between the horizontal and the downward directed vertical (between -180 0 and - 90 °).
- the opened seat 14700 can be docked on the upper platform of the lift (not shown, cf. reference number 1400 in FIG. 1) by means of actuation units (not shown) and released again.
- the backrest 14710 When folding the seat 14700 to its folded size, the backrest 14710 can be folded down vertically from an upwardly lapped or horizontal position. As the backrest 14710 reaches the horizontal by dipping, the legrest 14730 can tilt upward in synchronism and can reach a substantially horizontal position. By folding down the backrest 14710 further, the leg rest 14730 can change its direction of movement and can fold downwards axially symmetrically until both backrests are folded down vertically.
- the folded seat 14700 encloses the folded base frame (not shown, cf. FIG. 4, reference number 4100). As illustrated, the seat 14700 can also be folded with a sun canopy 14560.
- Multifunctional platform - perspective view 15 shows a perspective overall view of an exemplary embodiment of a foldable, three-part multifunctional platform 15800 in an open and a folded state as a possible attachment.
- a load-bearing structure of the multifunctional platform 15800 comprises a foldable frame and a foldable, three-part floor 15820 let into the frame.
- the open multifunctional platform 15800 is stable in itself as an attachment and can be used separately as such.
- the multifunctional platform 15800 can be coupled to the upper platform (not shown, cf. e.g. FIG. 1, reference number 1400) and decoupled from it again.
- the frame and the base 15820 can together form a trough when they are open.
- the tub is dimensioned in such a way that it corresponds to the footprint of various standard euro containers or common beverage crates.
- On the upper side of the frame there are several attachment receptacles 15816 that can be used to attach straps or ropes, etc., in order to secure the loads to be transported.
- the frame is foldable and comprises two side frame segments 15811 and two middle frame segments 15812.
- the middle 15812 and side 15811 frame segments are additionally rotatably coupled by four locking fittings 15814.
- the locking fittings allow the side frame segments 15811 to be angled from the horizontal by 90 ° downwards into the vertical. If the side frame segments 15811 are folded from the vertical into the horizontal, the locking fittings 15814 snap into place.
- the ends of the middle 15812 and side 15811 frame segments are shaped in such a way that, in an open, horizontal position, they close off visually almost seamlessly to the outside by means of a cover 15815.
- a lock tongue with which the multifunction platform can be docked in the two receiving locks on the top of the upper platform.
- Actuating units for unlocking the lock tongue of the attachment can be arranged laterally, on one or both sides, on the upper platform of the attachment. When unlocked, the multifunction platform can be removed from the chassis.
- the side frame segments 15811 can be angled upwards at an acute angle in order to lock the locking fittings 15814 to be released between the middle 15812 and the side 15811 frame segment by toggling.
- the multifunctional platform can then be folded down vertically.
- the reference numerals are of the form wxyz.
- the first number w denotes the number of the drawing.
- the first digit x denotes an assembly in the drawing w.
- the last two digits y and z denote a sub-element z of an element y of the assembly x in the drawing w.
- Wooo device z. Transp.
- Loads W441 movable rollers wioo chassis W442 first rollers wlio cantilever W443 second rollers wi20 steering fork W500 couch wi20 steering fork W510 lower frame wi2i swivel joint W511 lower lateral frame segment wi22 vertical axis W512 lower middle frame segment
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Handcart (AREA)
- Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH01393/19A CH716767A2 (de) | 2019-11-04 | 2019-11-04 | Faltbare Vorrichtungen zum Transportieren von Lasten. |
PCT/EP2020/080560 WO2021089435A1 (de) | 2019-11-04 | 2020-10-30 | Faltbare vorrichtungen zum transportieren von lasten |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4054916A1 true EP4054916A1 (de) | 2022-09-14 |
Family
ID=73059878
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20800852.4A Pending EP4054916A1 (de) | 2019-11-04 | 2020-10-30 | Faltbare vorrichtungen zum transportieren von lasten |
Country Status (5)
Country | Link |
---|---|
US (1) | US20220410953A1 (de) |
EP (1) | EP4054916A1 (de) |
JP (1) | JP2023501212A (de) |
CH (1) | CH716767A2 (de) |
WO (1) | WO2021089435A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN114961299B (zh) * | 2022-05-23 | 2023-06-30 | 天津东方海川门窗幕墙股份有限公司 | 一种建筑幕墙安装用定位装置 |
CN115154119B (zh) * | 2022-07-25 | 2023-07-14 | 苏州大学附属儿童医院 | 一种新生儿防碰撞的保育装置 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0890534A1 (de) * | 1997-07-02 | 1999-01-13 | Christopher Lyon | Werkzeugtransportgerät mit ausklappbaren Rädern |
US6431319B1 (en) * | 2000-02-29 | 2002-08-13 | Ferno-Washington, Inc. | Height-adjustable equipment cart with detachable table |
US6923466B2 (en) * | 2002-12-17 | 2005-08-02 | James Tsai | Collapsible handcart capable of extending the area of carrier by operating handle |
-
2019
- 2019-11-04 CH CH01393/19A patent/CH716767A2/de not_active Application Discontinuation
-
2020
- 2020-10-30 WO PCT/EP2020/080560 patent/WO2021089435A1/de unknown
- 2020-10-30 EP EP20800852.4A patent/EP4054916A1/de active Pending
- 2020-10-30 US US17/773,910 patent/US20220410953A1/en active Pending
- 2020-10-30 JP JP2022525256A patent/JP2023501212A/ja active Pending
Also Published As
Publication number | Publication date |
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CH716767A2 (de) | 2021-05-14 |
WO2021089435A1 (de) | 2021-05-14 |
US20220410953A1 (en) | 2022-12-29 |
JP2023501212A (ja) | 2023-01-18 |
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