DE102019102117B4 - Transport trolleys, in particular for storing and transporting objects such as tools and / or workpieces - Google Patents

Abstract

Transport trolleys, in particular for storing and transporting objects such as tools and / or workpieces, comprising a carrier device (12) which defines a longitudinal axis (L) along which the carrier device (12) tapers, with three or more on the carrier device (12) more than three wheels (14) are attached, or o two wheels (12) and at least one support section are attached to the support device (12), the wheels (12) or the wheels (12) and the support section having a reference plane (E) define, and at least one support column (30) attached to the support device (12), on which a storage plate (35) between a first position, in which the storage plate (35) is substantially perpendicular to the reference plane (E), and a second Position in which the storage plate (35) runs essentially parallel to the reference plane (E), is movably attached, the carrier device (12) having a first side support (16) and a second side support r (18) which extend at an angle (α) to the longitudinal axis (L) lying in the reference plane (E), and o the first side support (16) and the second side support (18) each have a rear end (22), and - in each case a support column (30) which runs essentially perpendicular to the reference plane (E) and which is fastened in the region of its rear ends (22) to the first side support (16) and the second side support (18), characterized in that the two support columns (30) have a U-shaped or C-shaped cross-section and the two support columns (30) each enclose a cavity (34) with an open end (32), the open ends (32) pointing towards one another and the tray (35) in the first position is at least partially received in the two cavities (34).

Description

The present invention relates to a transport trolley, in particular for storing and transporting objects such as tools and / or workpieces.

Transport trolleys are used, for example, in supermarkets and hardware stores, where they are referred to as shopping carts. Depending on the configuration, the shopping carts have a wire basket in which the items to be purchased can be placed and transported to the cash register and possibly on to the motor vehicle.

While shopping trolleys of this type have proven themselves well for smaller items, difficulties arise when the items are so long and / or wide that they protrude over the wire basket. This is the case, for example, with flat objects such as wooden panels or with large beverage crates. For objects of this type, in particular in hardware stores and beverage stores, trolleys are used which do not have a wire basket but a storage plate arranged near the floor on which the flat objects or the beverage crates can be placed.

After use, such shopping trolleys and such transport trolleys can be pushed into one another and thus stored in a space-saving manner and in a more or less defined position relative to one another. The ability of the trolleys to be pushed into one another is also known as stackability.

Such transport trolleys with storage shelves arranged near the floor are also used in workshops, for example to transport workpieces to be processed or processed to processing machines or to storage facilities. The transport of tools is also carried out with such transport trolleys. The disadvantage here is that the sometimes heavy objects have to be lifted by the employees from the storage shelves near the floor and consequently from a low height and placed there, which requires a lot of physical effort and which can cause health hazards and especially back problems. Known trolleys, which have a storage plate arranged at working height, cannot be staggered and therefore cannot be parked to save space. They are therefore placed in an arbitrary position in the workshop, creating an image of disorder. Such trolleys, sometimes also referred to as tool trolleys, are in the DE 80 32 425 , of the DE 201 19 610 U1 , of the DE 197 53 783 A1 and the DE 37 23 464 A1 disclosed. Further transport trolleys are in the U.S. 3,197,224 A , of the DE 83 02 005 U , of the DE 70 31 373 U , of the EP 1 762 456 A1 , of the GB 2 393 156 A , of the DE 10 2005 049 029 A1 and the DE 10 2010 006 388 A1 described.

The object of an embodiment of the present invention is to provide a transport trolley, in particular for storing and transporting objects such as tools and / or workpieces, which can be provided with simple and inexpensive means. In particular, the transport trolley should have a storage plate which can be arranged at working height, but the transport trolley should nevertheless be stackable and consequently space-saving.

This object is achieved with the features specified in claim 1. Advantageous embodiments are the subject of the subclaims.

• - eine Trägereinrichtung, die eine Längsachse definiert, entlang welcher sich die Trägereinrichtung verjüngt,
• - wobei an der Trägereinrichtung drei oder mehr als drei Räder befestigt sind, oder
• - wobei an der Trägereinrichtung zwei Räder und zumindest ein Auflageabschnitt befestigt sind,
• - wobei die Räder bzw. die Räder und der Auflageabschnitt eine Bezugsebene definieren, und
• - zumindest eine an der Trägereinrichtung befestigte Trägersäule, an welcher eine Ablageplatte zwischen einer ersten Position, in welcher die Ablageplatte im Wesentlichen senkrecht zu der Bezugsebene, und einer zweiten Position, in welcher die Ablageplatte im Wesentlichen parallel zu der Bezugsebene verläuft, bewegbar befestigt ist.

One embodiment of the invention relates to a transport trolley, in particular for storing and transporting objects such as tools and / or workpieces

• a carrier device which defines a longitudinal axis along which the carrier device tapers,
• - Three or more than three wheels are attached to the carrier device, or
• - Two wheels and at least one support section are attached to the carrier device,
• - The wheels or the wheels and the support section defining a reference plane, and
• - At least one support column attached to the support device, on which a storage plate is movably attached between a first position in which the storage plate is essentially perpendicular to the reference plane and a second position in which the storage plate runs essentially parallel to the reference plane.

The reference plane is defined by the wheels or by the wheels and the support section, so that the reference plane runs essentially parallel to the base on which the trolley is moved and placed. The longitudinal axis runs in the reference plane or parallel to it.

The proposed transport trolleys can be inserted into one another and therefore staggered. The staggering is achieved in that the carrier device tapers along the longitudinal axis and in that the storage plate can be moved between two positions. In the first position, the worktop runs perpendicular to the reference plane and therefore takes up almost no space parallel to the reference plane. This allows the trolleys very be introduced far into one another, so that many of the proposed transport trolleys are parked in a particularly space-saving manner.

The attachment of the storage plate to the support column makes it possible to arrange the storage plate at least in the second position at a distance from the support device. The distance can be selected so that the shelf is arranged at working height in the second position. As a result, the objects to be transported can be placed on the storage plate and removed from it, protecting the back. In addition, the objects can also be processed directly on the transport trolley, so that the transport trolley takes on the function of a mobile worktop. Such processing is particularly suitable for wooden or metal plates and wooden boards. The term support column should primarily be understood to mean that it is designed as a rod-shaped and one-piece support. In addition, the support column can also comprise multi-part support elements that are rotatably attached to one another.

According to the invention, the carrier device comprises a first side carrier and a second side carrier which extend at an angle to the longitudinal axis lying in the reference plane and which each have a rear end. Common profiles can be used as side supports, so that the support device can be provided at low cost. In addition, the profile can be selected in such a way that the forces and moments that occur can be safely absorbed without requiring more space. The course of the side supports with respect to the longitudinal axis makes it possible in a simple manner to design the trolley so that it can be staggered.

According to the invention, a support column running essentially perpendicular to the reference plane is fastened in the region of its rear ends to the first side support and to the second side support. In this embodiment, two fastening sections are provided for the storage plate, so that the two support columns can have comparatively small dimensions.

The transport trolley according to the invention is further characterized in that the two support columns have a U-shaped or C-shaped cross section and the two support columns each enclose a cavity with an open end, the open ends pointing towards each other and the tray in the first position at least is partially received in the two cavities. In this embodiment, the two support columns serve not only to support the shelf, but also to define the first position in that the shelf protrudes into the cavities. Complex and additional structural units for defining the first position of the storage plate are not necessary, so that the construction of the transport trolley can be kept simple.

In a further developed embodiment, the carrier device can have a first transverse carrier which runs perpendicular to the longitudinal axis and which connects the first side carrier and the second side carrier to one another. With the first cross member, the rigidity of the carrier device is increased without requiring much space.

In a further developed embodiment, the first side support and the second side support can each have a front end, wherein the first transverse support connects the first side support and the second side support to one another at their front ends. The arrangement of the first cross member at the front ends ensures that the trolleys can be inserted very far into one another, so that they can be parked in a particularly space-saving manner.

In a further embodiment, the carrier device can comprise a second transverse carrier which connects the first side carrier and the second side carrier to one another in the region of their rear ends. The use of a second cross member, which is connected to the two side members in the area of the rear ends, leads to a further increase in the rigidity of the carrier device.

A further developed embodiment is characterized in that the first side support and the second side support each have an upper surface and the second transverse support connects the first side support and the second side support to one another on their upper surfaces. The first cross member and the two side members of a first trolley can be passed under the second cross member of a second trolley. In this embodiment, the staggerability is not impaired by the second cross member.

According to a further embodiment, the storage plate has at least one guide section which protrudes into the two cavities and is designed such that the storage plate can be rotated with respect to the support columns. The rotatability is used to be able to move the shelf between the vertical and the horizontal. The guide section can be made relatively simple and have a circular cross-section, so that it enables, on the one hand, linear guidance within the cavities of the support columns and, on the other hand, rotation between vertical and horizontal. Transferring the The shelf from the first to the second position takes place in this embodiment in the following way: In the first position, the vertically aligned shelf rests on the support device and protrudes with its lateral edges into the cavities of the support columns. To transfer to the second position, the shelf is lifted to the upper end of the support columns until the shelf can be rotated horizontally. When transferring between the two positions, the storage plate in this embodiment performs both a translatory and a rotary movement.

Another embodiment is characterized in that the two support columns each have an open upper end, via which the guide section can be introduced into the two cavities, and at least one stop element is provided with which the two upper ends can be partially closed when the guide section is introduced into the two cavities. The stop element prevents the guide section from being accidentally moved out of the cavities when the shelf is lifted and the shelf loses its guidance. In addition, the stop element can be arranged in such a way that there is feedback for the user as to when the shelf can be rotated from the vertical to the horizontal, namely when the guide section is in contact with the stop element.

According to a further embodiment, the two support columns each have a shoulder which is dimensioned such that the storage plate is flush with the upper ends of the support columns in the second position. In this embodiment, an obstacle-free storage area is created so that flat objects such as wooden or metal plates in particular can be placed on the storage plate without, for example, interfering with the support columns. In particular, wooden or metal plates can be placed on the shelf, which protrude beyond the shelf. In this embodiment, the proposed transport trolley can be used particularly expediently as a mobile worktop.

In a further developed embodiment, a support element can be attached to the storage plate, with which the storage plate can be supported in the second position on the carrier device. Although the support of the shelf can also be done exclusively via the support columns, relatively large torques can act on the support columns when the transport trolley is in operation if the shelf extends far away from the support columns. The support element relieves the load on the support columns and helps to define the second position of the shelf.

In a further developed embodiment, the carrier device has at least one receiving section with which the support element can be introduced in the second position. With the receiving section, the support element can be connected to the carrier device in a clearly defined manner, so that the user can move the trolley quickly and easily into the second position.

• 1A eine Seitenansicht eines Ausführungsbeispiels des erfindungsgemäßen Transportwagens anhand einer Seitenansicht,
• 1B eine Draufsicht auf den in 1A dargestellten Transportwagen, wobei sich sowohl in 1A als auch in 1B die Ablageplatte in einer zweiten Position befindet,
• 1C eine Seitenansicht des Transportwagens,
• 1D eine perspektivische Ansicht des Transportwagens, wobei sich sowohl in 1C als auch in 1D die Arbeitsplatte in einer zweiten Position befindet,
• 1E eine perspektivische Ansicht des Transportwagens, wobei sich die Arbeitsplatte in der ersten Position befindet,
• 2 eine prinzipielle Schnittdarstellung durch die Trägersäulen, und
• 3 eine perspektivische Ansicht von insgesamt fünf Transportwagen, wobei sich bei fünf Transportwagen die Arbeitsplatte in der ersten Position und bei zwei Transportwagen sich die Arbeitsplatte in der zweiten Position befindet.

Exemplary embodiments of the invention are explained in more detail below with reference to the accompanying drawings. Show it

• 1A a side view of an embodiment of the transport trolley according to the invention based on a side view,
• 1B a top view of the in 1A trolleys shown, both in 1A as well as in 1B the shelf is in a second position,
• 1C a side view of the transport trolley,
• 1D a perspective view of the trolley, with both in 1C as well as in 1D the worktop is in a second position,
• 1E a perspective view of the trolley with the worktop in the first position,
• 2 a basic sectional view through the support columns, and
• 3 a perspective view of a total of five trolleys, the worktop is in the first position with five trolleys and the worktop is in the second position with two trolleys.

The 1A to 1E show an embodiment of a transport trolley 10 , which can be used in particular for storing and transporting objects such as tools and / or workpieces. The dolly 10 has a carrier device 12 on having a longitudinal axis L. of the transport trolley 10 defined (see 1B) . At the carrier device 12 are a total of four wheels 14th attached to a reference plane E. and define the as around a perpendicular to the reference plane E. running axis swivel castors are executed. Instead of four wheels, two wheels can be used 14th and a support section (not shown) can be provided. Also a version of the transport trolley 10 with three wheels 14th is conceivable.

The carrier device 12 includes a first side support 16 and a second side support 18th each having a front end 20th and a rear end 22nd have, with the two side supports 16 , 18th at their front ends 20th with a first cross member 24 are connected to each other. The side carriers 16 , 18th run in one in the reference plane E. lying angle α to the longitudinal axis L. to each other, so that the carrier device 12 to the front end 20th the side carrier 16 , 18th tapered towards.

As in particular from the 1D is apparent, comprises the carrier device 12 a second cross member 26th with which the two side supports 16 , 18th are connected. The two side carriers 16 , 18th each have a top surface 28 on that of the wheels 14th pointing away. The second cross member 26th is on the upper surfaces 28 with the two side supports 16 , 18th connected so that the second cross member 26th over the two side supports 16 , 18th and the first cross member 24 is arranged.

At the carrier device 12 are two pillars 30th attached, which in the illustrated embodiment is essentially perpendicular to the reference plane E. run away.

The 2 shows a basic sectional view through the support columns 30th approximately along the in 1C defined cutting plane AA . The two pillars 30th have a U-shaped cross section, each with an open end 32 on. The supporting pillars 30th are so at the carrier facility 12 attached that open ends 32 point towards each other. The two pillars 30th each enclose a cavity 34 .

The trolley also includes 10 a shelf 35 with a distal end 36 and a proximal end 38 . The shelf 35 is between a first position, which is in the 1C and 1D and a second position which is shown in FIGS 1A , 1B and 1E is shown, movable back and forth on the support columns 30th attached. As in particular from the 2 recognizable, includes the shelf 35 a guide section 40 , which in the example shown as one at the proximal end 38 the shelf 35 fortified round spar 42 is executed. The round spar 42 has a diameter D. which corresponds approximately to the width of the U-shaped profile. The two pillars 30th each have an open top 44 on (cf. 1E) through which the round spar 42 together with the shelf 35 into those of the two support pillars 30th enclosed cavities 34 can be introduced. The two open top ends 44 can by means of a stop element 46 be partially closed, especially when the round spar 42 in the two cavities 34 is introduced.

The shelf runs in the first position 35 approximately perpendicular to the reference plane E. , the round spar 42 on the second cross member 26th rests on ( 1D ). As in particular from the 2 emerges, protrudes the shelf 35 in the first position laterally into the cavities 34 into it so that the support pillars 30th the shelf 35 guide and hold in the vertical orientation.

Should the shelf 35 be transferred to the second position, the shelf 35 to the top 44 the support pillars 30th moved down until the round spar 42 on the stop element 46 is applied. The stop element 46 prevents the round spar 42 when transferring the shelf 35 into the second position over the top end 44 the support pillars 30th is moved out, causing the shelf 35 would lose the lead. If the round spar 42 on the stop element 46 is applied, the shelf is 35 rotated from vertical to horizontal, reducing the shelf 35 reaches the second position. In the area of the distal end 36 is a support element 48 rotatable on the shelf 35 attached ( 1D ), which in one on the first cross member 24 arranged receiving section 50 can be brought in when the shelf is 35 is in the second position. The shelf 35 is thereby fixed in the second position.

In particular from 1D it appears that the support columns 30th a paragraph 52 have in the area of the upper end, whereby the shelf 35 in the second position flush with the support columns 30th concludes. This is also due to the fact that the support plate 35 eccentric on the round spar 42 is attached, as in particular in 2 recognizable.

Also the stop element 46 does not protrude upwards over the shelf 35 so that an unobstructed storage area is created. As a result, flat objects such as wooden panels that are larger than the shelf can also be used 35 , easily on the shelf 35 be filed.

The height of the support columns 30th is chosen so that the shelf is 35 is in the second position at working height, so that it is easily accessible for an employee and he puts items on the shelf, which is easy on the back 35 can store and remove from it.

List of reference symbols

10

Transport trolley

12

Carrier device

14th

Wheels, support section

16

first side carrier

18th

second side carrier

20th

front end

22nd

rear end

24

first cross member

26th

second cross member

28

upper surface

30th

Support column

32

open end

34

cavity

35

Shelf

36

distal end

38

proximal end

40

Guide section

42

Round spar

44

top end

46

Stop element

48

Support element

50

Receiving section

52

paragraph

D.

diameter

E.

Reference plane

L.

Longitudinal axis

α

angle

Claims (10)

Transport trolley, in particular for storing and transporting objects such as tools and / or workpieces, comprising - a carrier device (12) which defines a longitudinal axis (L) along which the carrier device (12) tapers, with three on the carrier device (12) or more than three wheels (14) are attached, or o two wheels (12) and at least one support section are attached to the carrier device (12), the wheels (12) or the wheels (12) and the support section having a reference plane ( E), and - at least one support column (30) fastened to the support device (12), on which a support plate (35) is positioned between a first position in which the support plate (35) is essentially perpendicular to the reference plane (E), and a second position in which the storage plate (35) runs essentially parallel to the reference plane (E), is movably attached, wherein the carrier device (12) has a first side carrier (16) and a second side comprises supports (18) which extend at an angle (α) to the longitudinal axis (L) lying in the reference plane (E), and the first side support (16) and the second side support (18) each have a rear end (22) , and - in each case a support column (30) which runs essentially perpendicular to the reference plane (E) and which is fastened in the region of its rear ends (22) to the first side support (16) and the second side support (18), characterized in that the two Support columns (30) have a U-shaped or C-shaped cross-section and the two support columns (30) each enclose a cavity (34) with an open end (32), the open ends (32) pointing towards one another and the tray (35 ) is at least partially received in the first position in the two cavities (34). Transport trolley after Claim 1 , characterized in that the support device (12) has a first transverse support (24) which runs perpendicular to the longitudinal axis (L) and which connects the first side support (16) and the second side support (18) to one another. Transport trolley after Claim 2 , characterized in that the first side support (16) and the second side support (18) each have a front end (20) and that the first transverse support (24) the first side support (16) and the second side support (18) at their front Ends (20) connects to one another. Transport trolley after Claim 3 , characterized in that the carrier device (12) comprises a second cross member (26) which connects the first side carrier (16) and the second side carrier (18) to one another in the region of their rear ends (22). Transport trolley after Claim 4 , characterized in that the first side beam (16) and the second side beam (18) each have a top surface (28) and the second cross beam (26) has the first side beam (16) and the second side beam (18) on their top surfaces (28) connects with each other. Transport trolley after Claim 5 , characterized in that the storage plate (35) has at least one guide section (40) which protrudes into the two cavities (34) and is designed such that the storage plate (35) can be rotated with respect to the support columns (30). Transport trolley after Claim 6 , characterized in that the two support columns (30) each have an open upper end (44) via which the guide section (40) can be introduced into the two cavities (34), and at least one stop element (46) is provided with which the two upper ends (44) can be partially closed when the guide section (40) is introduced into the two cavities (34). Transport trolley after Claim 7 , characterized in that the two support columns (30) each have a shoulder (52) which is dimensioned such that the storage plate (35) is flush with the upper ends of the support columns (30) in the second position. Transport trolley according to one of the preceding claims, characterized in that a support element (48) is attached to the storage plate (35), with which the storage plate (35) can be supported in the second position on the carrier device (12). Transport trolley after Claim 9 , characterized in that the carrier device (12) has at least one receiving section (50) with which the support element (48) can be introduced in the second position.

Images