WO2000034101A2

WO2000034101A2 - Shopping cart

Info

Publication number: WO2000034101A2
Application number: PCT/EP1999/009656
Authority: WO
Inventors: Wolfgang Neuser; Gunnar Fiegel
Original assignee: Sulo Eisenwerk Streuber & Lohmann Gmbh
Priority date: 1998-12-08
Filing date: 1999-12-08
Publication date: 2000-06-15
Also published as: AU1973400A; EP1137567A2; WO2000034101A3; DE19856584A1

Abstract

The invention relates to a shopping cart and to a method which allows for such carts to be nested in each other. According to the invention the shopping cart is almost exclusively made of a plastic material and in particular has at least partly flat outer contours. According to the invention the shopping cart (1) comprises a basket (2) and an undercarriage (3) with wheels (4) which has two lateral cheeks (15) extending upwards on either side of the basket (2). The basket (2) is fixed to the undercarriage (3) such that it is able to pivot about a transverse axis (5) in such a way that it can be moved from a horizontal normal position into a nesting position. The shopping cart is characterized in that in the direction of travel behind the axis (5) the space between the lateral cheeks (15) is open.

Description

Shopping venture

I. Field of application

The invention relates to shopping carts as used in supermarkets by customers.

II. Technical background

These shopping carts basically consist of a base frame, to which the wheels for driving the shopping cart are attached, and generally a basket for inserting the goods, which should be around the waist of the user, and one or more handles for pushing and Steering the shopping cart, the four wheels are usually all or only two of them designed as castors, so steerable about a vertical axis.

Such shopping carts usually consist of either metal or plastic or a combination of both materials. For reasons of visibility, the basket is provided with openings in whole or in part and, in particular when it is made from metal, is produced from a latticework of metal bars.

In addition to the stability and durability of the shopping trolleys, another problem is the required nestability, i.e. the possibility of partial interlocking pushing several shopping carts in order to reduce the space required for storing the shopping carts.

This is generally solved in that the rear wall of the basket can be swung open upwards and the basket of a rear shopping cart can thereby move into the basket of the front shopping cart. The parts of the base frame are designed to be conical in the longitudinal direction and can therefore also be moved into one another.

When using plastic as a production material, because of the lower strength of the plastic compared to steel, self-contained structures, for example a one-piece basket, are to be preferred, since a foldable rear wall of the basket to achieve nestability provides comparable stability only with greater material consumption, e.g. B. larger wall thicknesses can be reached.

For steel structures, the base frames mostly consist of pipes and the baskets mostly of wire lattice. This is disadvantageous with regard to the creation of areas for advertising, which must therefore be created in metal structures by additionally arranged sheet metal plates, slide-in frames, etc.

III. Presentation of the invention

a) Technical task

It is therefore the object of the invention to create a shopping cart and a method for its nestability, which can be implemented as far as possible using plastic as the material of the entire shopping cart and in particular additionally offers at least partially flat outer contours. b) solving the problem

This object is solved by the characterizing features of claims 1, 30 and 38. Advantageous embodiments result from the subclaims.

The space between the side bolsters of the base frame, which is particularly accessible from the rear, especially at handle height, preferably down to the wheels - in contrast to the cross connections in the form of handlebars or stabilizing connections between the wheels in conventional shopping trolleys - there are several advantages:

On the one hand, with the basket swung up in the nest position, several shopping carts can be moved into each other in the longitudinal direction and their baskets and base frames can be nested in one another without threading the front of the basket of a shopping trolley approaching from behind between the handlebar and the basket in front Shopping cart is necessary.

On the other hand, easier handling and filling of the shopping trolley is possible for the user if he does not have to bend down over a high-lying handlebar and if there is above all no cross-connection between the wheels which hinders walking behind the shopping trolley.

In addition, if the basket can be removed from the base frame to serve as a transport box for the goods inside and, for example, to transport the filled basket away by means of a car, then the space between the side walls is helpful in that the shopping cart can be inserted into the open tailgate Motor vehicle is driven in that the front region of the bottom of the basket rests on the edge of the trunk or is located above this edge. By lifting the basket out of the base frame by the user standing behind the basket, it is now possible to continue the basket to push forward, whereby the user is also in the space between the side bolsters of the base frame and can go forward without pushing the base frame forward. On the one hand, a horizontal bottom surface of the basket and, on the other hand, a rectangular plan of the basket that does not taper towards the front, in addition to simple handling (to prevent the goods from slipping in the basket), there is also a large capacity with small basket outer dimensions. For the nesting of the shopping trolleys it is sufficient if only the side walls of the basket rise diagonally upwards outwards. An inclined rise of the rear wall of the basket and / or the front wall of the basket is - depending on the inclined position of the nest - only necessary to an extremely small extent for nesting. If the free, transverse rear end edge of the basket is lower in the nest position than its transition to the bottom of the basket, the rear wall that is inclined in the nest position can be used as a guide surface for pushing the next basket in.

Because such a construction means that the basket does not have to have any foldable walls, such as the usual foldable rear wall, for reasons of interlocking, this shopping cart is particularly suitable for being made essentially entirely of plastic, since the basket is made of a Except for the top, there is a completely closed one-piece trough, which already has sufficient stability even when it is made from plastic and has thin walls and a few struts.

Likewise, due to the open rear side, the base frame can be completed from just a few individual parts and even in one piece from plastic using the injection molding process and with little subsequent assembly work.

A particularly simple design of the shopping trolley with very few components and little assembly effort results if the basket is made in particular in one piece and the base frame includes a first transverse connection at the front lower end in addition to the two side cheeks, and furthermore a ne second, higher and further rear cross connection, and possibly also a movable cross connection, which can be folded down in the direction of the rear lower ends of the side cheeks to guide them at their mutual distance. In addition, the four wheels are mounted on the base frame, which are usually the only components on which metal is used.

Such a shopping cart can - without the need to fasten the wheels because of the use of standard wheels as purchased parts - also do completely without screwing during assembly and disassembly, and instead can only be assembled by means of positive connections and latches.

Such a shopping cart can be made from simple plastic, for example polypropylene, the plastic material also not requiring reinforcement by glass fibers or other fibers, since the structural design provides sufficient stability.

In particular, the second, higher-lying cross connection is designed as a support lug, that is to say an approximately horizontally extending hollow body which is located below the bottom surface of the basket folded down in the rest position and on the top of which the basket also rests in this position. The support nose becomes narrower from the back to the front, both in side view and in top view, and is a hollow body which is open to the rear and which can therefore also be produced by injection molding.

With its front free end, the support lug reaches the front quarter of the basket and can simultaneously serve to lock the basket in this folded-down rest position on the support lug.

Furthermore, a different receiving part can be attached to the base frame instead of a shopping basket to fulfill a different purpose between the side walls of the base frame, for example a storage area, in order to Serve airport luggage trolley, or a child seat to serve as a buggy or specially dimensioned shopping baskets to serve for a specific transport purpose, for example for files in an authority, books in a library or the like.

The fact that the side cheeks each have a cheek beam that rises obliquely from front to back, which points with its narrow side to the front and with its broad side to the side, is a very simply shaped component that can be produced using the injection molding process or even the continuous casting process for the stability of the Decisive base frame, which additionally has a closed side surface, which does not have to be provided with openings for the purpose of weight reduction because of the small overall dimensions, and is therefore available as a continuous advertising space. This advertising space can even be designed three-dimensionally during injection molding. This cheek beam can also be equipped with a bone-shaped or TT-shaped cross section, in which in particular the thickened ends can be made hollow with a completely enclosed cavity, even during injection molding, using the gas injection process (GID process), as a result of which a high torsional rigidity and bending rigidity with little Material consumption and weight is achieved. The same method is also suitable for other parts of the trolley, for example for achieving hollow individual handles or for achieving a thickened, hollow and at the same time very stable upper peripheral edge of the basket.

In order to tilt the shopping cart to the rear and in particular to have a sufficiently large wheelbase, approximately triangular-shaped cheek plates are preferably arranged below the cheek bars, in particular in the lower half thereof, which run obliquely downwards at the rear and at the lower rear ends of which the rear wheels are fastened , while a stabilizing cross connection between the cheek bars and on the other hand the front wheels are attached to the lower ends of the cheek bars. The stabilizing cross connection can also be used to cover the front wheels on them Serve top. As is usually the case, all four wheels are designed as swivel castors, that is to say pivotable about a vertical axis.

At least in the nesting position of the shopping trolley, the cheek plates also diverge slightly from the front to the rear when viewed from above. This oblique position can also be maintained in the rest position, that is to say the use position of the shopping trolley, or can be converted into a parallel position for the rest position by pivoting the cheek plates relative to the cheek bars. In addition to the first fixed cross connection between the lower ends of the cheek beams, a second fixed cross connection between the cheek beams is provided approximately in the middle of the height of the cheek beams or just below it, at least just below the bottom of the basket, which at the same time acts as the above-described support nose for the one that is folded down Basket can serve.

In the side view of the shopping trolley, this second fixed cross connection is preferably angled, one leg of the angle running parallel approximately to the rear edge of the cheek bars and being pulled down so far that it acts as a stop for a box placed on the lower front cross connection, for example a beverage box , is used, which can be pushed back and tipped over this front lower cross connection until it rests on the second upper cross connection. This tipping prevents the beverage crate from slipping forward, even when the shopping trolley brakes quickly, and without the base frame of the trolley requiring a continuous footprint for such crates.

In order to facilitate the insertion of the beverage crates, the lower front cross connection can either have a rounded upper side or rollers or sliding reducing means for the beverage crate embedded therein. In addition to the two fixed cross connections already mentioned, the base frame can have a further cross strut in the lower rear region, that is to say in particular between the lower rear ends of the side plates. Preferably this cross strut is not fixed, but can be moved so that it struts only in the rest position, i.e. when using the shopping trolley, the rear lower ends of the base frame or the side plates, for the nest position of the shopping trolley, on the other hand, is moved upwards, especially high can be pivoted so as not to impede the nesting of the base frames.

The swiveling up can be effected automatically by the next shopping trolley approaching from behind.

As the handles, the base frame preferably has individual handles on the upper ends of the side cheeks or side bars, which preferably project upward in the plane of the side bars, in particular at an angle or in a curved manner, so that a different handle height can be selected depending on the size of the user.

For users who are used to a horizontal handle bar, these individual handles can be folded down in a horizontal position inwards and downwards relative to the side cheeks about a longitudinal pivot axis and should then not be located substantially above the rear upper edge of the basket. In addition and / or instead, the rear upper edge of the basket can also be designed as a handle bar through an opening running transversely beneath it in the rear wall of the basket. This is particularly necessary when the basket is removable from the base frame, and then preferably also in an analog form at the front edge of the basket.

The basket itself has smooth, continuous surfaces as far as possible. For example, the floor consists of a largely closed, continuous plate, the top of which is also available for advertising. Breakthroughs to make cleaning easier, in particular for draining spilled liquids or washing liquid, are not necessary since cleaning can be done when the nesting position is folded up. In the same way, the front and rear walls of the basket, in particular made in one piece, are preferably formed as continuous, closed plates.

For reasons of visibility of the basket interior for the cashier, on the other hand, the side walls should have openings, which is achieved in particular in the form of parallel slits, which preferably take place parallel to the inclined position of the side bars of the basic bedrock. The webs remaining between the slots thus serve as tension struts, in the direction of the loading direction of the basket side walls, when this basket is mounted in its rear region at pivot points in the base frame, which is preferably located halfway up the basket and in the middle of the width of the side walls , so that goods are preferably loaded before this suspension point.

The pivot axis of the basket relative to the base frame can either be designed as an axle journal between the outer surfaces of the basket and the inner surfaces of the base frame, or also as a rod-shaped pivot axis that passes through the basket interior. In this case, this rod also serves to subdivide the basket, for example to hold bottles placed in the rear part of the basket, and / or as a support for an additional child seat to be attached there. The child seat can be a separate part, in particular made of plastic, or can be formed by folding out individual surfaces from the rear wall and placing them on this rod.

In addition, the shopping cart can preferably have an enclosure device between the basket and the base frame in the rest position in order to reliably prevent the basket from swinging up unintentionally, which is hardly possible anyway when loaded due to the center of gravity. The locking device is preferably automatically unlocked when two shopping carts nest into one another by means of corresponding displaceable contact elements. As Contact elements can serve in particular in the front area of the basket, in particular laterally outwardly projecting contact elements, in particular rollers, which roll upwards when the baskets nest into one another on the upper longitudinal edges of the basket in front and thereby pivot up the rear basket. These contact elements can be fastened to a lever which can be pivoted relative to the basket and can thus be used for unlocking, that this pivotable lever is connected to a releasable catch between the side cheek and the basket via a linkage, for example. This further lever connection can in particular be accommodated in the hollow upper edge of the basket.

The unlocking can, for. B. but also by means of the existing between the side walls of the base frame, displaceable or pivotable cross bracing.

This results in a special procedure for handling the shopping cart. It is therefore possible to proceed in such a way that for the nesting in one another the basket of the shopping cart approaching from behind is either swiveled up before nesting, or this is done automatically by the basket of the shopping cart standing in front of it nesting. The continuous handlebar of the base frame of one of the above trolleys does not have to be passed under, so that the area between the (essentially vertical) individual handles of the front shopping trolley can be passed through.

The rear lower cross strut of the base frame is not moved from the rest position to the nest position, however, not when this rear shopping cart is nesting, but only when the next shopping cart approaches from behind. Activation by the shopping cart in front of it would also be possible and could then serve to deactivate the locking between the basket and the base frame when nesting. Otherwise, the same contact elements, in particular contact rollers, which serve to guide the basket of the rear shopping cart when nesting along the front shopping cart, are preferably used to deactivate the locking device.

c) working examples

An embodiment according to the invention is described in more detail below with reference to the figures. Show it:

1 a, 1 b: a shopping cart in the side view in the rest position and in the nest position,

2 several nesting shopping carts,

3a to 3c the process of nesting, and

Fig. 4 top views and rear views of shopping carts according to the invention.

The basic components of the shopping trolley can be seen in FIG. 1:

The carriage has a basket 2, with the front

wall 8, also diagonally upwards, but behind, projecting rear wall 9, one

Floor 6 and the usual open top 1 1. In the side walls 7 of the

The basket is in the front two thirds of the basket diagonally from the front

rearward rising, parallel slots 20 - possibly interrupted by ho¬

horizontal struts - arranged for visibility into the interior of the basket.

Halfway up the basket, in the rear quarter of basket 2, are the horizontally oriented axle journal or the axis 5, by means of which the basket 2

between the side walls 15 of the ascending along the basket

Base frame 3 is pivotally mounted and preferably removable. Preferred

the basket has receptacles in which corresponding pins which

are arranged on the inside of the side cheeks, preferably form¬

intervene conclusively.

The base frame 3 consists of side walls 15, which are at the front lower end

via a first, preferably fixed, cross-connection and about halfway up,

So still below the bottom 6 of the basket 2, preferably by means of a

second, in particular fixed cross-connection (support nose 34) with each other

are bound.

All cross-connections, possibly also other connections, especially between Ru-

Helage and nest location of cross connections that can be relocated are particularly so

arranged that with a basket 2 swung up into the nest position, as in

Fig. 1 b shown in the direction of travel 10a in front of the rear end edge 13, that is in

the rest position of the upper edge of the rear plate 9 come to rest. This is in the

Fig. 1a shown rest position of the shopping cart also given there

however without influence for the function of the shopping cart.

The upper cross connection fulfills a double function in that

at the same time the support and locking of the basket 2 in the folded down

In the rest position The support lug 34 is fixed, that is to say immovable, preferably by means of a catch between

fixed between the two side cheeks 15, and places one both in the Auf¬

view as well as in the side view tapering from the back to the front

The hollow body is open at the back and ribbed in the longitudinal direction

Condition of a substantially horizontal top surface to rest and support

of the basket 2, and one sloping downwards from the top to the bottom

loin bottom. In addition, the support lug 34 has one at its rear end

downward-pointing rear wall 35, which acts as a stop on the lower transverse

Connection 16a used goods, such as beverage crates, is used. The vor¬

the free end of the support lug 34 reaches the front third of the bottom surface

surface of the basket 2.

Furthermore, on the outside, both in the lower region of the front wall 8

also in the front area of the floor 6, a locking unit 36 on the basket

arranged, the counter element located on the top of the support nose 34 in de¬

Ren is in the foremost area, so that when the basket 2 is folded down into the rear

helage and thus when placed on the support nose 34 of the basket 2 opposite die¬

ser support nose 34 locked, and thus no accidental folding of the

Basket 2 more is possible.

The locking of the locking unit 36 with respect to the support lug 34 can

can only be solved by pressing in the locking unit from the front, such as

shown in Figure 1a. A horizontally pointing forward pushes jump 33, which is arranged at the rear end edge 13 of the basket 2, and itself

with a basket folded up into the nest position exactly at the level of the front of the

Front wall 8 located part of the locking unit 36, against this

Locking unit 36, and thus releases the locking of the basket opposite

the support nose 34, whereupon the basket 34 swings upwards into the nest position

ken lets.

Both the projection 33 and the locking unit 36 are only -

viewed in supervision - in the middle of the basket, as best shown in Fig. 4a

detect.

It is also clear there that the movable element of the locking unit 36

a deformable elastic molding tape, i.e. a tape-like, shape-retaining

Element, which is received between two side cheeks 37, which over

the tape protrudes forward. This will prevent that

Pressing in the forming belt 38, which is used to deactivate the locking mechanism

the basket and support nose 34 serves, unintentionally by starting at another

their object happens.

Instead, disabling the lock is only by pushing the

Shopping trolley 1 - as shown in Fig. 1a - on the last of a series of in-

nested, parked shopping carts possible. The locking unit 36, the associated projection 33 and also the entire one

Pointed nose 34 are only shown in Figures 1 a and 4a, this locking

an alternative solution to that described later with reference to FIGS

written locking device is.

The side cheeks 15 consist of obliquely from the bottom front to the top rear

rising cheek bars 15a, as is otherwise better in the supervision of Fig.

4a and the rear view of FIG. 4b. 4a is the left one

Half with basket 2 inserted, the right half against it without basket 2, i.e.

finally the base frame 3 is shown.

In the rear view of Fig. 4b, the basket 2 is in the rest position, and zu¬

in addition there is a basket 2 'in the removed, removed from the base frame 3

stood represented. In the right half of FIG. 4, the basket 2 is in the high

shown pivoted nest position, i.e. with a view of the then visible open top

page 11 and with a view of the floor 8.

Fig. 1b further shows that the obliquely rising cheek bars 15a through

behind and below cheek plates 15b - which are also in one piece

the cheek bars 15a can be formed - are supported, the

Front wheels 4a and rear wheels 4b at the lower ends of the side bars 15a

or the rear lower ends of the side plates 15b. The front cross connection 16a also serves as a bumper, and is there

double-walled, especially at its front edge against impacts in the horizontal direction

dig formed so that the outer wall is closest to the inner one

Spring back against the wall, against which it can be ribbed, without this

Cross connection is damaged. The cross connection is preferably in yours

Cross-section on the top curved and flat on the bottom, and as

Injection molded part made, which is open at the bottom and from the bottom

has visible ribs.

The front wheels 4a are purchased parts which are mounted on plates which counter

screwed over the lower ends of the side cheeks 15a, whereby

at the same time a connection between the bumper and side panels

provides or is reinforced. The rear wheels come with corresponding pins

preferably only in receptacles of the side cheeks provided for this purpose.

plugged.

When dimensioning the distance from the front axle to the rear axle in

Relation to the nest depth of the nesting shopping carts is towards it

make sure that the ratio of the center distance to the nest depth is the same or

is a multiple of 0.5, which is a collision of the wheels in one another

Avoiding the nested snake from shopping carts.

In order to bring about the inclined position of the beverage crate 24 shown in FIG. 1 b,

a separate contact surface 25 inclined obliquely backwards can be otherwise convex upward curved surface of the first cross connection 16a

be incorporated.

In addition, in the nested row of shopping carts 1a, 1b, 1c

2a shows a locking mechanism for locking the baskets 2 in the

Folded up nest position shown:

It is assumed that there is a basket in the rear wall 9 below the

upper end edge 13 at least one opening, preferably on both sides of the

Center each has a breakthrough, so that the End¬ in these areas

edge 13 is formed as a handle bar 32 of the basket 2.

From the rear wall 9 to the rear project in this area on the body

ben further, preferably symmetrically next to each other on both sides of the center, such as

4a, left half of the picture, multi-purpose hook 31 formed. In the ho¬

These multi-purpose hooks 31 serve, for example, in the horizontal rest position of the basket

for hanging a shopping bag.

When the shopping carts nest into one another, these multi-purpose hooks 31 slide

opposite the handle bar 32 of the shopping cart standing in front of it,

whose basket is already folded up in the nesting position, so they reach into the

Breakthrough of the rear wall of this basket in front. This can

the basket no longer lower from the folded-up nest position, causing the shopping cart to the rear of the row of shopping carts automatically

would be pushed out.

For the foremost shopping cart in a nesting row would have to

corresponding fixed multi-purpose hooks arranged on a front wall etc.

be nice.

Instead of the position of the pivot axis shown in Figures 1 and 2

the pivot point of the basket 2 can also be the same or in front of the rear lower edge

of basket 2 - if this is in the rest position - when viewed in the

Side view.

At the upper end of each of the side walls 15, in particular at the upper end

each of the side bars 15a is a single handle 19, which is preferably in

is the level of the side cheek and protrudes obliquely upwards at the front, in particular

their arcuate and counter in the area of the front edge of the side bar 15a

is supported over this. Because in the upper area of the base frame between

the side walls of which are not cross-connected can be

process in the longitudinal direction 10a, the base frames 3 as well as in the nest

would be nested up folded baskets 2, as Fig. 2a in one

schematic side view and Fig. 2b in a perspective view

demonstrate. For this purpose, only the side walls 7 of the basket 2 from the bottom 6

from increasing with increasing distance from the bottom 6 of the basket 2 itself

distance from each other while front wall 8 and rear wall 9 theoretically on

due to the distance of the individual baskets from each other in nested nests

Weighing 1a, b, c, as can be seen in FIG. 2a, even at right angles to the floor 6

could stand.

For the nesting of the base frames, the side walls 15 run

Base frames viewed in the direction of travel are slightly conical, i.e. they face each other at the front

approximate to each other, as best seen in the supervision of Fig. 4a

detect. The base frame of the rear shopping cart e.g. 1 b thus stands in¬

within the base frame of the front shopping cart e.g. 1 a, and the same applies

also for the baskets 2 of these shopping trolleys. The supervision of Fig. 4a shows - besides

the conical design of the base frame - that the basket 2 parallel

Has lelveriaufenden side walls 7, and thus at the front end of Ein¬

shopping cart is wider and protrudes laterally over the base frame 3 while he

located in the rear area between the side cheeks 15 of the base frame

det. According to the conical outline shape of the shopping cart 1, the

Front wheels 4a also have a smaller track width than the rear wheels 4b.

In the right half of the floor plan of Fig. 4a, in which only the base frame

3 is shown, is also a possibility of folding the single handle 19

a substantially horizontal pivot axis with respect to the side cheek 15

shown, whereby the handle in a horizontal position 19 ', approximately transverse to the direction of travel 10a, and depending on the dimensioning to the middle

of the shopping cart, what pushing the shopping cart with can do

relieved only one hand.

In the left half of FIG. 4a, the locking device is also an example

drawn in direction 23, the basket 2 in the rest position of the shopping cart,

as shown in Fig. 1a, ver¬ with respect to the base frame 3

snaps. The locking between the basket and the base frame takes place in the area

by the side cheeks 15 and the basket 2 being closest, that is approximately

where the upper longitudinal edge of the basket on the inside of the cheek beams

15a runs along.

There is a locking lug 26 outwards from the upper edge of the basket, which extends

just above an inward projection of the side bar 15a

so that the basket is in this area, which is behind the pivot point

5 is located, can not move down. This locking device 23rd

can also be used to - against a removable basket

above the base frame 3 - to lock the removal with, for example, the

outwardly facing journal of the basket 2 thereby the receiving sleeves

of the base frame 3 not upwards by a lock in the locked state

can leave the closed opening (not shown).

The locking lug 26 is attached to the rear end of a rod 28 which is in the longitudinal direction

direction 10 is displaceable, and preferably in the thickened, hollow top longitudinal edge of the basket, and in the locking end position, for example

is biased by a spring.

At the front end of the rod 28, it can be pivoted with e.g. two arm

connected to lever 29, which is pivotable on the outside of side wall 7

the basket 2 is stored. One end of this lever 29 is with the rod 28

articulated, while the other is a Kon¬ projecting laterally outwards

Clock element 21, for example a role, as best shown in FIG. 3

seen.

As when the rear carriage 1 b approaches the front carriage 1 a in FIG.

3a, the contact element 21 first reaches the side edge of the open side

NEN top 11 of the front basket 2a, which is already in the hochge¬

swiveled nest position.

This will - with further pushing the rear shopping cart 1 b

and as shown in Fig. 3b - the lever 29 ver¬ about its pivot axis

pivots, whereby the rod 28 is pushed forward, and thus the

Latch 26 arrives outside the effective range of the projection 27, and

thus the locking device is deactivated. When pushing forward

of the rear basket 1b - as can be seen in FIG. 3c - the locking device remains

direction 23 in this deactivated position, and by sliding the

Contact element 21 along the longitudinal edge of the

front basket 2a, the rear basket 2b is automatically placed in the nest position pivoted up to the setting shown in FIGS. 1 b and 2 b. Vor¬

7 locking device 23 are preferably present on both side walls

the.

As can be seen above all from FIG. 3a, the nesting position of the basket 2 must be fixed

be placed in this position that the end edge 13, ie in the rest position the top

ren edge, the rear plate 9, below the underside of the bottom 6 of a forth

approaching shopping cart located in a quiet position.

FIG. 3a also shows an additional, movable link on the rear shopping cart 1b

che cross strut 12 in the form of a pivotable plate, which is also in Fig. 4b

is drawn. This plate 12 runs transversely between the side cheeks 15

and is with its front, lower transverse edge in relation to the base frame 3

pivoted. The plate shows at its rear upper end edge

U-projections 30 projecting from the outside and open to the front, the purpose thereof

exists, in the folded-down state the lower area of the rear edge of the

To embrace side plates 15b and to stabilize them at their mutual distance

ren. Since the side plates 15b viewed conically in the top view of FIG. 4a

diverge at the rear, the cross strut 12 must be at such a point

be stored in such a way that when this plate is folded up, the U-projections 30 during the lifting

fold out of engagement with the side plates 15b because these side plates

15b a smaller distance in its upper region than in its lower region

have rich to each other. Swiveling up the plate of the cross connection 12 takes place automatically when a rear shopping area is approached and inserted

car.

To make the area between the side panels accessible from behind

received, the rear end edge of the plate 12 is as large as possible semicircular

mig recessed so that the plate 12 is fork-shaped in supervision.

REFERENCE SIGN LIST

1 shopping cart 18 handle bar

2 basket 19 single handles

3 base frame 30 20 slots

4a, 4b wheels 21 contact elements o 5 axis 22 rollers

6 bottom 23 unlocking device

7 side wall 24 box

8 front wall 35 25 footprint

9 rear wall 26 latch

5 10a direction of travel 27 head start

10 longitudinal direction 28 bar

11 top 29 lever

12 cross struts 40 30 U-extensions

13 end edge 31 multi-purpose hook

: o 14 end edges 32 handle bar

15 sidewalls 33 head start

15a cheekbones 34 support nose

15b cheek plates 45 35 rear wall

16a, 16b cross connection 36 locking unit

! 5 17 angle 37 side wall

17a plate 38 deformable forming tape

17b plate

Claims

PATENT CLAIMS

1. Shopping cart (1) with a basket (2), a base frame (3) with wheels (4), which has two side cheeks (15) projecting upwards on both sides of the basket (2), the basket (2) on the base frame (3) about a transverse axis (5) is pivotally mounted so that it can be pivoted from a horizontal rest position into a nest position, characterized in that in the direction of travel behind the axis (5) in the space between the side cheeks (15) only the Basket (2) itself limited access to this room.

2. Shopping cart according to claim 1, characterized in that the pivot point of the basket (2) is offset from the rear wall (9) of the basket (2) in the direction of travel forward.

3. Shopping cart according to one of the preceding claims, characterized in that the basket (2) from the base frame (3) is removable to be used for the further transport of goods.

4. Shopping cart according to one of the preceding claims, characterized in that in the nest position - the rear wall (9) of the basket (2) extends obliquely, so that its free, transverse end edge (13) is lower than its transition into the ground ( 6), and that the front wall (8) of the basket (2) is so inclined that its transverse end edge (14) is higher than its transition to the floor (6).

5. Shopping cart according to one of the preceding claims, characterized in that in the rest position the bottom (6) of the basket (2) is horizontal.

6. Shopping cart according to one of the preceding claims, characterized in that the side walls (7) are further apart from one another with increasing distance from the floor (6).

7. Shopping cart according to one of the preceding claims, characterized in that the shopping cart (1) consists essentially of plastic, in particular of injection molded parts.

8. Shopping cart according to one of the preceding claims, characterized in that the basket (2) and / or the base frame (3) are one-piece plastic parts.

9. Shopping cart according to one of the preceding claims, characterized in that the base frame (3) has two side cheeks (15) which project upwards on both sides of the basket (2) and which are connected to one another, in particular in one piece, by at least one fixed cross connection (16a, 16b) are connected.

10. Shopping cart according to one of the preceding claims, characterized in that the side cheeks (15) have at least one cheek bar (15a) which rises obliquely from front to back and has its broad side pointing to the side.

11. Shopping cart according to one of the preceding claims, characterized in that the side cheek (15) below and in the direction of travel (10a) behind the cheek bars (15a) has a cheek plate (15b).

12. Shopping trolley according to one of the preceding claims, characterized in that the front wheels (4a) are fastened to the base frame in the region of the lower ends of the cheek beams (15a).

13. Shopping cart according to one of the preceding claims, characterized in that the rear wheels (4b) are arranged in the region of the lower rear corner of the cheek plates (15b) of the base frame.

14. Shopping cart according to one of the preceding claims, characterized in that the one cross connection (16a) is arranged between the lower end regions of the cheek bars (15a).

15. Shopping cart according to one of the preceding claims, characterized in that a second cross-connection (16b) between the cheek bars (15a) is arranged below the basket (2).

16. Shopping cart according to one of the preceding claims, characterized in that the second cross-connection (16b) has a plate (17a) which runs transversely approximately parallel to the rear edge of the cheek beams (15a).

17. Shopping cart according to claim 16, characterized in that the plate (17a) forms one leg of an angle (17), the other leg of which is formed by a second plate (17b) which runs parallel to the rear edge of the cheek plate (15b).

18. Shopping cart according to one of the preceding claims, characterized in that the first cross-connection (16a) has a convexly upwardly curved cross section, cut in the longitudinal direction (10) of the shopping trolley.

19. Shopping cart according to one of the preceding claims, characterized in that the upper end edge (13) of the rear wall (9) of the basket (2) is designed as a handle bar (18).

20. Shopping cart according to one of the preceding claims, characterized in that from the upper ends of the cheek bars (15a) each have a single handle (19) upwards, in particular obliquely upwards, in particular in an arc shape.

21. Shopping trolley according to one of the preceding claims, characterized in that the side walls (7) of the basket (2) and in particular the front wall (8) of the basket (2) openings, in particular parallel slots (20), in particular increasing obliquely parallel to Have course of the cheek bars (15).

22. Shopping cart according to one of the preceding claims, characterized in that the cheek bar (15a) and / or the cheek plate (15b) and / or the basket (2), in particular its upper edge, have at least partially hollow cavities, in particular made from hollow profiles or using the GID gas injection method.

23. Shopping cart according to one of the preceding claims, characterized in that over the outer surface of the basket (2) to the side, in particular close to the front wall (8), in particular in the upper region of the basket (2), contact elements (21) to the outside protrude.

24. Shopping trolley according to one of the preceding claims, characterized in that the contact elements (21) are rollers which are rotatable about horizontally transverse axes, in particular on the basket (2), are attached.

25. Shopping cart according to one of the preceding claims, characterized in that the contact elements (21) acts as an actuating element for an unlocking device (23) which secures the basket (2) in the rest position in the locked state.

26. Shopping cart according to one of the preceding claims, characterized in that in the first cross-connection (16a) between the lower ends of the cheek bars (15a) rollers (22) are arranged which protrude above the top of the cross-connection (16a) and around a horizontal transverse axis are rotatably mounted in the cross connection (16a).

27. Shopping cart according to one of the preceding claims, characterized in that the individual handles (19) can be folded relative to the cheek bars (15a) about a pivot axis running in the longitudinal direction (10) from a position which is essentially vertical in the direction of view (10) to a horizontal position towards the center of the shopping cart (1).

28. Shopping cart according to one of the preceding claims, characterized in that the axis (5) for pivoting the basket (2) relative to the base frame (3) is designed as a continuous rod from the left to the right side of the base frame and the subdivision of the interior and in particular serves as a support for a child seat in the basket (2).

29. Shopping cart according to one of the preceding claims, characterized in that the axis (5) is realized by individual axle journals on both sides of the basket (2).

30. A method for space-saving nesting of shopping carts (1a, 1b, ...), each of which has a basket (2) and a base frame (3) with wheels (4), by moving together in the longitudinal direction (10), characterized that a) the basket (2b) of the rear shopping trolley (1b) is moved from its rest position into its nesting position, b) at the same time or at the latest thereafter the rear shopping trolley (1b) is moved into the front shopping trolley (1a) from the rear thereof, c) the basket (2a) of the front shopping cart (1a) was also previously placed in the nesting position.

31. The method according to claim 30, characterized in that when nesting the basket (2b) of the rear shopping cart (1b) passes through the area between the side walls (15) of the front shopping cart (1a) at the level of its handle, in particular horizontally.

32. The method according to any one of the preceding method claims, characterized in that a cross strut (12) between the two rear wheels (4b) relative to the base frame (3) from a rest position into a before or during the rupture of two shopping carts (1a, 1b) Nest location is spent.

33. Method according to one of the preceding method claims, characterized in that when nesting one another the basket (2b) in the nest position of the rear shopping trolley (1b) with the floor (6) facing forward into the open upper side (11) of the basket (2a) of the front shopping cart (1a) is moved in, which points upwards in the rest position.

34. The method according to any one of the preceding claims, characterized in that the basket (2) is brought into the nest position by pivoting the basket relative to the base frame, in particular about a horizontal axis (5).

35. The method according to any one of the preceding claims, characterized in that the movement, in particular pivoting, of the basket (2) from the rest position into the nest position automatically by contacting and then sliding along contact points of the rear shopping cart (1b) on contact surfaces of the front shopping cart ( 1a) takes place.

36. The method according to any one of the preceding claims, characterized in that Before leaving the rest position, an unlocking of the rest position of the basket (2) and / or the cross strut (12) of the base frame takes place.

37. Method according to one of the preceding method claims, characterized in that the unlocking takes place automatically by contacting the shopping trolley (1b) with a shopping cart (1a) located in front of it.

38. A method for producing a shopping trolley made of plastic, characterized in that the shopping cart takes place by means of plastic injection molding using the gas injection method (Gl D method) to produce closed cavities.