WO2003013937A1

WO2003013937A1 - Erectable transporting means

Info

Publication number: WO2003013937A1
Application number: PCT/EP2002/008797
Authority: WO
Inventors: Burkhard Koch; Ulrich Koch; Dieter Koch
Original assignee: Burkhard Koch; Ulrich Koch; Dieter Koch
Priority date: 2001-08-10
Filing date: 2002-08-07
Publication date: 2003-02-20
Also published as: DE10153262A1

Abstract

The invention relates to a transporting means comprising a collapsible chassis and a folding loading area for accommodating and/or transporting goods containers, goods to be transported or people. According to the invention, the chassis has an umbrella-like collapsing mechanism, and the loading area can be folded together with the collapsing mechanism during the collapsing process.

Description

Stretchable means of transport

The invention relates to a means of transport with a stretchable chassis and a collapsible loading area for receiving and / or for transporting goods containers, transport goods or people.

Nowadays, collapsible means of transport are available in many variations. They range from shopping carts with and without a child seat, mobile transport boxes, strollers to wheelbarrows and the like. v. m ..

The advantage of such means of transport is their small footprint both when transporting in the car and when stored in the house or in the garage. Such means of transport also facilitate the transport of goods or transport goods over shorter distances. Often there are no parking spaces directly in front of the front door, so that heavy purchases can be easily transported from the car to the home using such means of transport. The annoying return of shopping trolleys that are loaned for a limited time can also be spared for the consumer. In addition, there is no need to keep suitable small change or deposit items.

Collapsible means of transport should on the one hand take up as little space as possible in the closed state, but on the other hand should be opened up as quickly, practically and stably as possible.

The folding mechanisms of conventional collapsible means of transport function in the manner of a scissor-type frame. One is described Transport trolleys in EP 0 286 520. Further transport trolleys are described in DE 197 07 744, in which the roller frame can be retracted and the individual side walls can be folded in and folded up.

Also known are means of transport in which the frames are equipped with a swivel mechanism so that they can be folded in the rest position. Such constructions are made pivotable with the help of hinges. The frames or supports are folded in by pivoting the joints. The use of telescopic rods to maintain stabilizing supports are also part of the conventional designs. The loading areas are often designed as a basket and must be removed during the folding process.

With the aforementioned means of transport, handling is not always easy, since the unfolding and folding takes place in several steps. Individual support rods or frames are swung out or folded in a certain order and in a pivoting direction determined for each functional rod. In particular, the folding of ingenious constructions requires precise knowledge of the folding technique of individual bars and must also be determined individually for each means of transport.

The invention is therefore based on the object of designing a means of transport of the type mentioned at the outset in such a way that it can be easily and securely folded or unfolded, has sufficient stability in the unfolded position and requires little space in the folded position in order to accommodate small storage spaces , especially in the trunk of a car. It is furthermore desirable to provide a folding mechanism for a chassis which can be used to produce various types of collapsible transport means.

To achieve this object, the invention proposes, starting from a means of transport of the type mentioned, that the chassis has an umbrella-like folding mechanism and the loading area when Folding process is foldable together with the folding mechanism. With the umbrella-like folding mechanism, the transport means can be folded and unfolded in a few simple steps. With this folding mechanism, the stability of the transport means is guaranteed when unfolded. Furthermore, the loading area does not have to be removed during the folding process. The fast and convenient transformation of the means of transport from the rest position into the unfolded and ready-to-use state and vice versa distinguish the means of transport according to the invention.

The rest position is understood here as a folded or closed state. The ready-to-use state of the means of transport is the expanded / unfolded or opened state.

The umbrella-like folding mechanism has a central rod which is connected to a fixed rosette on which one or more structural rods are articulated. The central rod is also provided with a movable, lockable rosette which is displaceable on it and on which one or more push rods are articulated which are connected in an articulated manner to the structural rods.

The sliding rosette pushes the chassis apart. The push rods are spread, which in turn push the structural rods apart, thereby stabilizing the chassis. The structure bars also have the function of structuring and designing a spatial orientation of the means of transport.

A first exemplary embodiment of the invention provides for the design of the loading area as a goods trough of a shopping cart, which is carried by a plurality of vertical support bars. The supporting rods are provided with wheels at the bottom and are pushed apart and pushed together by means of the umbrella-like folding mechanism while maintaining their vertical orientation. Here, the central rod of the umbrella-like folding mechanism is arranged vertically, the fixed rosette being fixed at the lower end of the central rod. The ends of the structural rods are articulated to the supporting rods, while the push rods are extended beyond the articulated connection with the structural rods and are each guided with their free ends so as to be displaceable on the supporting rods by means of a longitudinally displaceable sliding sleeve.

Through this connection combination between structural rods and push rods with the support rods, the goods trough is pushed apart and clamped by means of the umbrella-like folding mechanism. The interaction of these components stabilizes the means of transport.

In order to fold out the means of transport, which is in the folded state, ready for use, the movable rosette is pushed down; the push rods are spread, which in turn push the structural rods apart. Thus, the support rods move apart while maintaining their vertical orientation. The locking point of the movable rosette is to be chosen appropriately so that on the one hand the goods trough is completely tensioned and on the other hand the push and structural bars are stretched and stable in the unfolded state. Usually, the movable rose is in the unfolded state of the means of transport directly under the goods tray.

The central rod can preferably be extended by means of a removable part, the removable part being plugged onto the upper end of the central rod when the transport means is folded. The goods trough expediently has an opening intended for this section. This construction enables the means of transport to be pushed together.

When folding the means of transport, the movable rosette is to be pushed upwards along the central rod into the area of the section; there the push and structural rods are guided to the central rod, whereby the supporting rods also move in the direction of the central rod.

The removable section on the central rod expediently serves as a push handle when ready for use and is attached to the upper end of the supporting rods for this purpose. The length of the detachable section is therefore expediently chosen so that it corresponds at least to the space between two adjacent support rods and is sufficient for the folding of the means of transport. The movable rosette must be able to be pushed up so far that the push and structural rods as well as the support rods lie against the central rod.

Furthermore, the movable, lockable rosette which is displaceable on the central rod is preferably connected to a support plate, the support plate being arranged below the goods trough. The support plate stabilizes and supports shopping baskets that are placed in the goods tray.

In a further exemplary embodiment according to the invention, the loading area is designed as a transport trough of a wheelbarrow, which is carried by two horizontal support rods which are provided with handles for pushing and pulling the wheelbarrow at one end and pushed together and apart by means of the umbrella-like folding mechanism while maintaining their horizontal orientation become.

Here, the central rod of the umbrella-like folding mechanism is arranged horizontally and provided at one end with at least one downward-facing impeller. The fixed rosette is also fixed at this end. At the other end it is provided with a hanging device.

Preferably, the push rods which are articulated on the displaceable, movable, lockable rosette and are directed downward are designed as supporting legs, so that the wheelbarrow can be placed on them and on the wheel. With the push rods (support legs) they are now behind Structural rods directed below, which are in turn articulated to the fixed rosette.

Furthermore, the push rods directed upwards for this version are extended beyond the articulated connection with the structural rods pointing upwards and their ends are each articulated to the supporting rods, while the ends of the structural rods pointing upwards are each displaceable on the horizontal by means of a longitudinally displaceable sliding sleeve Support rods are guided.

When the wheelbarrow is unfolded, the movable rosette is pushed and locked in the direction of the impeller. The push rods are spread and with them the structural rods. The two support rods are pushed apart while maintaining their horizontal orientation. The support legs located on the central rod in the closed state straighten up at an angle, so that they can be placed on the floor.

In a further exemplary embodiment of the invention, the loading area is designed as the supporting area of a carriage, which is supported by two horizontal supporting bars. Two further horizontal support rods are designed as runners, the ends pointing in the direction of travel are appropriately bent and pushed apart and pushed together by means of the umbrella-like folding mechanism while maintaining their horizontal orientation.

Here, the central rod is also arranged horizontally. The push rods are extended beyond the hinge connection of the structural rods and their ends are each articulated to the support rods, while the ends of the structural rods are each slidably guided on the horizontal support rods by means of a longitudinally displaceable sliding sleeve.

The loading area particularly preferably consists of tear-resistant, flexible and stable material, preferably of textiles or plastic. These materials enable folding, picking up and carrying goods, transport goods or people.

With the transport means according to the invention, designed with an umbrella-like folding mechanism and the loading area according to the invention, different types of transport means can be constructed. These are not only space-saving and easy to handle when folded, but also stable and versatile when folded out.

The support rods, push rods, structural rods and central rod are preferably made of plastic materials, light metal (aluminum).

The means of transport according to the invention can be effortlessly pushed apart or pushed together to form a trolley, wheelbarrow or slide.

An expedient development for improving the stability of the means of transport according to the invention results from the fact that each articulated connection between structural and push rods is formed by a bolt which engages in intersecting elongated holes which are located in the structural rods on the one hand and the push rods on the other. Furthermore, according to the development, the free ends of the push rods are articulated to the support rods. The sliding sliding sleeves described above are not used here. In the construction according to the further development, the articulation points of the structural and push rods are kept apart and fixed at a distance to the support rod. When the means of transport is opened, only the bolt moves within the elongated holes. The length of these elongated holes depends on the length of the individual rods and their arrangement. It should be such that on the one hand the stability of the means of transport is guaranteed and on the other hand the folding is made possible.

If the means of transport is designed as a wheelbarrow, it expediently has additional auxiliary rods which are provided in addition to the structural rods. The ends of the auxiliary rods are included the movable, lockable rosette articulated. The other ends are slidably guided on the support rods by means of longitudinally displaceable sliding sleeves.

When the wheelbarrow is unfolded or opened, both the structural bars and the auxiliary bars are raised by means of the sliding sleeves. The distance between the handles and the structural bars is thus reduced, so that the stability of the wheelbarrow is improved.

A combination of the elongated hole / bolt connections explained above and the auxiliary rods explained below is also possible.

The invention is explained in more detail below with reference to drawings. Show it:

1 shows a collapsible shopping cart in the unfolded state without a loading area according to the invention;

Figure 2 shows a collapsible shopping cart in the unfolded state with a goods tray according to the invention;

Figure 3 shows a wheelbarrow according to the invention in the unfolded state without a loading area;

Figure 4 shows a wheelbarrow according to the invention in the unfolded state with a transport trough;

Figure 5 shows a carriage according to the invention with an umbrella-like folding mechanism in the unfolded state without a loading area;

FIG. 6 shows an extended slide with a wing according to the invention; FIG. 7 shows a section of the collapsible shopping trolley in the unfolded state without a loading area;

FIG. 8 shows a detail of the collapsible shopping trolley in the unfolded state without a loading area with elongated holes / bolts according to the invention;

Figure 9 shows the wheelbarrow in the unfolded state without a loading area;

Figure 10 shows a wheelbarrow with auxiliary rods;

Figure 1 shows an unfolded shopping cart 1 with an umbrella-like folding mechanism according to the invention. This

Folding mechanism consists of a central rod 11, a fixed rosette 12, a movable rosette 13, four push rods 14 and four structural rods 15.

The push rods 14 are articulated to the movable rosette 13 and the structural rods 15 to the fixed rosette 12. The structural rod 15 has an articulated connection at its other end to a support column 16, while the push rod 14 extends beyond a connection point with the structural rod 15 and is guided at its other end by means of a movable sliding sleeve 17 on the support column 16. At the lower end of the support rods 16, wheels 18 are mounted. A removable section (push handle) 19 is connected to the upper end of two support rods 16.

Figure 2 shows the same shopping cart according to the invention as Fig. 1 with a loading surface 40, which is designed as a goods trough and has an opening 50, which is located above the upper end of the central rod 11 and is intended for attaching the removable part (push handle) 19 , The collapsible shopping cart 1 has two states, namely a closed and an open state.

To fold the shopping cart 1, the removable section (push handle) 19 is pushed onto the central rod 11. Then the movable rosette 13 is moved upward, so that the support rods 16 lie more or less close to the central rod 11. The sliding sleeves 17 on the support rods 16 are in the closed state at the lower end of the support rods 16. The push rods 14 and structural rods 15 are also in contact with the central rod 11.

To open the shopping trolley 1, the movable rosette 13 is moved downward, being locked directly below the goods trough 40. By sliding the push rods 14 are also spread downwards and thus also the structural rods 15. The sliding sleeves 17 move upwards when the shopping cart is clamped on the carrying rods 16. The support rods 16 are fixed in the vertical position by a selected locking of the movable rosette 13, not shown, and thus enable the shopping cart to be moved in a stable manner. The central rod 11 is vertical in the clamped state. The attached upper section 19 of the central rod 11 can now be removed and used between two support rods 16 as a push handle.

FIG. 3 shows a wheelbarrow 2 that can be clamped with a central rod 21, a fixed rosette 22, a movable rosette 23, four push rods 24, four structural rods 25 and two supporting rods 26.

On the central rod 21 there is an impeller 28 at one end, which is designed to point downward, and at the other end a loop 29 'for hanging the wheelbarrow. Also on the central rod 21, the former downward push rods 24 are formed as support legs 24 ', so that the wheelbarrow 2 can be placed on them and on the wheel 28. Two structural rods 25 are articulated on the support legs 24 'and the fixed rosette 22. The upwardly directed structural rods 25 are connected at one end to the fixed rosette 22 in an articulated manner. The other ends of the structural rods 25 are guided on the support rods 26 by means of movable sliding sleeves 27. The upwardly directed push rods 24 are articulated on the movable rosette 23. Your other end is hinged to the support rod 26.

FIG. 4 shows the wheelbarrow 2 with a transport trough 40 which is carried by the two support rods 26 and is braced by the structure 24 and push rods 25 directed upwards.

In the folded state of the wheelbarrow 2, the support rods 26 are located in the vicinity of the central rod 21, while the support legs 24 ′ lie on the central rod 21, pointing in the direction of the impeller. The movable rosette 23 is located near the loop 29 '.

When the wheelbarrow is opened, the movable rosette 23 is pushed and locked in the direction of the impeller 28. The support legs 24 'straighten up, the lengths of which are chosen so that the wheelbarrow 2 can be placed thereon. At the same time when moving the movable rose 23, the push rods 24 are raised; the structural bars 25 assume an upward direction and the transport trough 40 is thus braced.

Figure 5 shows a carriage 3 with the umbrella-like folding mechanism according to the invention. The umbrella-like folding mechanism consists of a central rod 31, a movable rose 33, a fixed rose 32, four push rods 34 and four structural rods 35.

The push rods 34 are articulated to the movable rosette 33, the other end of which is articulated to the support column 36 '. The lower support rods 36 are designed here as runners 36 ', the ends pointing in the direction of travel being bent. The structural rods 35 are articulated at one end to the fixed rosette 32 and at the other end articulated with a sliding sleeve 37, which are movable on the support rods 36 and 36 '.

Figure 6 shows the carriage 3 with the wing 40, which is attached to the longitudinal side of the support rods 36.

In the closed state, the support rods 36 and the support rods 36 ′, which are designed as runners, are located in the vicinity of the central rod 31. The movable rose 33 is located at one end of the central rod. For the unfolding of the slide 3, the movable rosette 33 is pushed towards the center of the central rod 31, so that the push rods 34 and thus the structural rods 35 are spread apart. By locking a certain distance is maintained so that the support rods 36 can maintain their horizontal orientation and the wing 40 is braced as a seat.

Figure 7 shows a section of the expandable shopping cart 1 with the central rod 11, the fixed rose 12, the movable rose 13, the push rod 14, the structural rod 15, the support rod 16, the impeller 18 and the sliding sleeve 17. Furthermore, the figure shows a connection point 155 between structural rod 15 and push rod 14, which is articulated. The sliding sleeve 17 can be moved up and down on the support rod 16.

FIG. 8 shows the same section of the shopping trolley 1, the connection point 155 having two intersecting elongated holes 155 b in the structural rod on the one hand and in the push rod on the other. At the intersection of the two elongated holes 155 b, a bolt 155 a is passed through the two elongated holes 155 b. The bolt 155 a connects the structural rod 15 and the push rod 14 to one another in an articulated manner. The attachment of a sliding sliding sleeve at the connecting rod push rod / support rod 17 a, as described above, is not necessary. The push rod 14 is articulated to the support rod 16. When the shopping cart 1 is folded or unfolded, the bolt 155 a moves within the elongated holes 155 b. The structural rod 15 and the Push rod 14 are fixed in place on the support rod 16, whereby the stability is increased.

Figure 9 shows the wheelbarrow 2 with the central rod 21, the fixed rosette 22, the movable rosette 23, the four push rods 24, the four structural rods 25, two support rods 26, the impeller 28, the loop 29 ', the two support legs 24' and the two handles 29.

Figure 10 shows the wheelbarrow 2 with two auxiliary rods 25 a and two sliding sleeves 27 a. The auxiliary rods 25 a are articulated on the movable rosette 23 and articulated on the free end of the sliding sleeves 27 a, which are displaceable along the support rod 26. When the wheelbarrow 2 is folded, the structural rods 25 and the auxiliary rods 25a move in parallel by means of the sliding sleeves 27 and 27a in the direction of the handles 29. When the wheelbarrow 2 is unfolded, they move parallel in the opposite direction. The distance between the sliding sleeve 27 and handle 29 is reduced significantly due to the attachment of the auxiliary rods 25 a, so that the stability of the wheelbarrow 2 is improved.

Claims

claims

1.Transportation means with a collapsible chassis and a collapsible loading area for receiving and / or transporting goods containers, transport goods or people, so that the chassis has an umbrella-like folding mechanism and the loading area can be folded together with the folding mechanism when folding.

2. Transport device according to claim 1, characterized in that the umbrella-like folding mechanism has a central rod (11, 21, 31) which is connected to a fixed rosette (12, 22, 32) on which one or more structural rods (15, 25 , 35) are articulated, the central rod (11, 21, 31) being further provided with a movable, lockable rosette (13, 23, 33) which can be moved thereon and on which one or more push rods (14, 24, 34) are articulated which are articulated to the structural rods (15, 25, 35).

3. Means of transport according to claims 1 and 2, characterized in that the loading area (40) is designed as a goods trough of a shopping cart and is supported by a plurality of vertical support rods (16) which are provided below with wheels (18) and by means of the umbrella-like folding mechanism below Maintaining their vertical orientation can be pushed apart and pushed together.

4. Transport means according to claim 3, characterized in that the central rod (11) of the umbrella-like folding mechanism vertically is arranged, the fixed rosette (12) being fixed at the lower end of the central rod (11).

5. Transport means according to claims 3 and 4, characterized in that the ends of the structural rods (15) are articulated to the support rods (16), while the push rods (14) on the hinge connection with the structural rods (15) are extended and are each guided with their free ends by means of a longitudinally displaceable sliding sleeve (17) on the supporting rods (16).

6. Transport means according to claim 5, characterized in that the central rod (11) by means of a removable section (19) can be extended, wherein the removable section (19) on the upper end of the central rod (11) and through the goods tray and locked becomes.

7. Transport means according to claim 6, characterized in that the removable section (19) serves as a push handle, this at the top

End of the support rods (16) is attached.

8. Transport means according to claim 7, characterized in that a support plate with the on the central rod (11) displaceable movable lockable rosette (13) is connected, wherein the support plate is arranged below the goods trough.

9. Transport means according to claims 1 and 2, characterized in that the loading surface (40) is designed as a transport trough of a wheelbarrow and is supported by two horizontal support rods (26) which at one end with handles (29) for pushing and pulling the Wheelbarrows are provided and can be pushed and pushed apart by means of the umbrella-like folding mechanism while maintaining their horizontal orientation.

10. Transport means according to claim 9, characterized in that the central rod (21) of the umbrella-like folding mechanism is arranged horizontally, which is provided at one end with at least one downwardly directed impeller (28), at which end also the fixed rosette (22nd ) is fixed, and is provided at the other end with a suspension device (29 ').

11. Transport means according to claim 10, characterized in that the articulated on the displaceable, movable, lockable rosette (23), downwardly directed push rods are designed as support legs (24 ') on which the downward structural rods (25) are articulated are attached, which in turn are hinged to the fixed rosette (22).

12. Transport means according to claim 11, characterized in that the upward push rods (24) on the hinge connection with the upward structural rods (25) are extended and the ends of which are each articulated to the support rods (26), while the The ends of the upwardly directed structural rods (24) are each slidably guided on the horizontal support rods (26) by means of a longitudinally displaceable sliding sleeve (27).

13. Transport means according to claims 1 and 2, characterized in that the loading surface (40) is designed as a wing of a carriage, which is supported by two horizontal support rods (36), two further horizontal support rods (36 ') being designed as runners and can be pushed apart and pushed together by means of the umbrella-like folding mechanism while maintaining their horizontal orientation.

14. Transport means according to claim 13, characterized in that the push rods (34) are extended beyond the articulated connection with the structural rods (35) and the ends of which are each articulated to the supporting rods (36), while the ends of the structural rods (35) are each slidably guided on the horizontal support rods (36) by means of a longitudinally displaceable sliding sleeve (37).

15. Transport device according to one of the preceding claims, characterized in that the loading surface (40) consists of tear-resistant, flexible or stable material, preferably of textiles or plastic.

16. Transport means according to claims 1 and 2, characterized in that each articulated connection point (155) between

Structural rod (15) and push rod (14) is formed by a bolt (155 a) which engages in intersecting elongated holes (155 b), which are in the structural rod (15) on the one hand and the push rod (14) on the other, the free ends of the structural rods (15) and the push rods (14) are articulated to support rods (16).

17. Transport means according to claim 9, characterized in that the folding mechanism has additional auxiliary rods (25 a) which are provided in addition to the structural rods (25), the ends of the auxiliary rods (25 a) with the movable, lockable rosette (23) are connected, while the other ends are guided by means of longitudinally displaceable sliding sleeves (27 a) on the support rods (26).