DE202013100080U1 - Basket flaps stop element - Google Patents

Abstract

A basket flap stopper element (10; 10 ') for a shopping cart (1) having a latching body (11; 11') made of a hard plastic which has a receiving groove (15; 15 ') for enclosing a round wire (3) on the shopping cart (1) , and on whose outer circumference at least one damping profile (12, 13, 12 ', 13') made of a flexible plastic material is attached.

Description

The invention relates to a Korbklappenanschlagelement for a stackable shopping cart.

Stackable shopping trolleys have a pivotally mounted flap, which pivots upwards when a further, identical shopping trolley is inserted from behind. During the subsequent pulling the shopping cart strikes the flap on a crossbar on the basket of the shopping cart. The hard stop of the shopping cart parts, which are usually made of metallic wires, causes a high level of noise pollution and also leads to the wearing away of surface protective layers. To prevent the folding of the flap lower edge against the cross bar on a shopping cart, shock-absorbing elements are provided on the fixed part of the basket of the shopping cart and / or on the lower edge of the pivotable tailgate.

The example of the EP 845 401 A1 known basket flap stop elements consist of a plastic molded part, which is latched onto the lower edge of the flap formed from a metal wire and / or on the transverse wire at the rear of the basket, on which the flap hits. The known Korbklappenanschlagelemente consist of a hard, thermoplastic material, which indeed reduces the wear of surface protective layers, but dampens the noise of the impact flap only conditionally.

To remedy this, the invention proposes a wicket flap stop element, which comprises a locking body consisting of a hard thermoplastic material and at least one adjoining damping profile, which is formed from a flexible plastic.

The latching body has a particular C-shaped Rastaufnahmenut, by which the flap stop element can be easily snapped onto the usually formed of metallic round wires boundary edges at the rear end of the basket bottom. Due to the design of the central locking body made of a hard plastic and by a Umfassungswinkel for the round wire on the receiving groove enclosing the inner region of the locking body of at least 190 °, in particular 200 ° to 210 °, such a strong locking is achieved that a manual release of the flap stop member from the shopping cart is no longer possible. The choice of the hard thermoplastic material in the central area is therefore essential to be able to build high cogging forces.

With the central locking body an elastomeric damping profile is at least connected to the basket flap outside, in particular formed directly on it.

Even the choice of soft elastic plastic for the side profile section causes a significantly improved noise reduction when hitting the basket flap.

In particular, a hollow profile section is provided as a damping profile. Due to the design as a hollow profile, the lateral damping profile area can also be greatly compressed at the moment of the flap stop. The kinetic energy of the flap is partially compensated by the deformation of the side profile section, without being completely transferred to the basket of the shopping cart. The damping of the shock leads to a reduction of noise during impact.

It is also advantageous, also on the rear side, which thus points at the mounted flap stop element in the stack of shopping carts to the rear, to provide a further elastic damping profile. This then serves as a bumper for a rebounding from behind crossbar at the bottom of the basket bottom of another shopping cart. Even with this touch two shopping carts surface layers are spared and the noise is reduced. Particularly favorable is an embodiment in which the damping profiles have a C-shaped cross-section, wherein the damping profiles are connected at one end to the outer periphery of the locking body and each other end is free before or on the catch body.

It can be provided that the damping profile engages via an undercut in a groove of the central clamping body. In this way, a positive connection is created, which maintains a connection of the interconnected components even if it should come as a result of environmental influences to a detachment at the boundary layers of a cohesively connected damping profile. In addition, stress peaks in the region of the connection between the outer, elastic profile section and the inner, hard profile section are avoided.

Preferably, the damping element is made in one piece and as a section of a profile produced in a coextrusion process or as a part produced in a two-component injection molding. In this case, the locking body is formed as the hard component, for example made of polypropylene and the damping profiles are formed of a thermoplastic elastomer; Catch body and damping profiles are in this case materially connected. Possible is also a subsequent connection by clamping and / or gluing the elastic damping profile, which may for example also be formed from natural or synthetic rubber compounds.

The invention will be explained in more detail by means of embodiments and with reference to the drawing. The figures show in detail:

1 a detail of a perspective view of the rear portion of a shopping cart;

2 a detailed view of the rear area in section with a sequence of movements of a slamming tailgate;

3 a detailed view of the rear portion of a shopping cart in the stack, in section;

4A . 4B a Korbklappenanschlagelement according to a first embodiment in a perspective view from above and from below;

4C the Korbklappenanschlagelement according to the first embodiment in plan view of the underside; and

5 a Korbklappenanschlagelement according to a second embodiment in a side view.

1 shows a shopping cart 1 with a tailgate 2 that has a cross wire 3 the bottom of the basket or a flap-stop element clamped on it 10 hits. In 1 is the lowered basket flap with its lower cross wire 2.1 on the flap stopper element according to the invention 10 at.

2 shows in a sectional view of the area of the soil 4 the shopping cart 1 , On the rear cross wire 3 is the flap stopper 10 snapped. It has a central locking body 11 made of hard plastic and a damping profile 12 Made of soft plastic on the to the basket flap 2 facing inside. It also has an elastic damping profile 13 made of soft plastic on the back side.

In 2 is the lower cross wire 2.1 the basket flap 2 shown in a total of four stages of movement, showing the movements of the flap 2 until the impact on the damping profile 12 clarify. The front damping profile 12 is designed as a tubular hollow profile with a relatively small wall thickness to a particularly good compliance and energy absorption in the impact of the tailgate 2 to reach.

3 shows the situation when stacking two shopping carts 1 , The upper double line marks a floor 4 ' a pushed from behind shopping cart with a located below the basket crossbar 5 ' , The basket flap 2 beats with her lower cross wire 2.1 , which forms the lower boundary edge here, against the rearward damping profile 13 the flap stop element 10 at the front, in 3 Shopping cart pictured on the right 1 ,

4A shows the flap stopper 10 with the elastic damping profile sections 12 . 13 and the clamping profile section 11 in the middle in perspective view obliquely from above. Through the inner recess 15 through is still a transverse groove 14 recognizable.

The transverse grooves 14 are in the view of the flap stopper element 10 from the bottom in 4b clearly. Through it it is possible, the flap stop element 10 , as in 1 visible, on the cross wire 3 unlock the basket, leaving the cross wire 3 is completely encompassed and at the same time down the subsequent thereto longitudinal wires of the grid-shaped basket bottom in the transverse grooves 14 be recorded.

5 shows a side view of a second embodiment of a flap stop member 10 ' , which is also a relatively hard, firmly snap-latch body 11 ' and associated damping profiles 12 ' . 13 ' made of soft, flexible plastic.

Both damping profiles have 12 ' . 13 ' a C-shaped cross section, wherein the damping profiles 12 ' . 13 ' only with one end to the outer periphery of the detent body 11 ' are tethered and the other end free before or on the locking body 11 ' lies. The free end can thus at a compression of the damping profile 12 ' . 13 ' either under the ratchet body 11 ' dive or lead to a rolling motion. In both cases, a particularly large proportion of the impact energy is compensated for and the noise of the beating parts of the shopping cart correspondingly greatly reduced.

In the second embodiment, the locking body 11 ' formed in the form of an omega. The in 5 down to the left protruding ridge forms a positive stop, if the damping profile 13 ' as far as it is deformed, that it with its inside on the catch body 11 ' suppressed.

The deeply drawn profile contour of the rear damping profile 12 ' in the second embodiment has the further advantage that the lower portions of the damping profile 12 ' in front of the 3 recognizable, rear ends of the longitudinal wires of the basket floor 4 can be placed so that prevents parts of the rear shopping trolley when stacking against the wire ends of the floor 4 bump.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 845401 A1 [0003]

Claims (9)

Basket flap stop element ( 10 ; 10 ' ) for a shopping cart ( 1 ), with a detent body ( 11 ; 11 ' ) made of a hard plastic, which has a receiving groove ( 15 ; 15 ' ) for enclosing a round wire ( 3 ) on the shopping cart ( 1 ), and on the outer circumference at least one damping profile ( 12 . 13 ; 12 ' . 13 ' ) is attached from a soft elastic plastic. Basket flap stop element ( 10 ; 10 ' ) according to claim 1, characterized in that on both sides of the latching body ( 11 ; 11 ' ) Damping profiles ( 12 . 13 ; 12 ' . 13 ' ) are connected. Basket flap stop element ( 10 ; 10 ' ) according to at least one of the preceding claims, characterized in that the damping profile ( 12 . 13 ; 12 ' . 13 ' ) cohesively to the locking body ( 11 ; 11 ' ) is attached. Basket flap stop element ( 10 ; 10 ' ) according to at least one of the preceding claims, characterized in that the damping profile ( 12 . 13 ; 12 ' . 13 ' ) positively to the locking body ( 11 ; 11 ' ) is attached. Basket flap stop element ( 10 ) according to claim 4, characterized in that the latching body ( 11 ) on the outer circumference at least one longitudinally extending groove ( 16 ) into which a footbridge ( 12.1 ) of the damping profile ( 12 ) intervenes. Basket flap stop element ( 10 ; 10 ' ) according to at least one of claims 1 to 5, characterized in that the latching body ( 11 ) at the opening side of the receiving groove ( 15 ; 15 ' ) at least one transverse groove ( 14 ) owns. Basket flap stop element ( 10 ) according to at least one of claims 1 to 6, characterized in that at least one damping profile ( 12 ; 12 ' . 13 ' ) is designed as a hollow profile. Basket flap stop element ( 10 ' ) according to claim 7, characterized in that the damping profiles ( 12 ' . 13 ' ) have a C-shaped cross-section, wherein the damping profiles ( 12 ' . 13 ' ) only with one end to the outer periphery of the detent body ( 11 ' ) are tethered and the other end free before or on the detent body ( 11 ' ) lies. Basket flap stop element ( 10 ; 10 ' ) according to at least one of the preceding claims, characterized in that a receiving groove ( 15 ; 15 ' ) enclosing inner region of the detent body ( 11 ; 11 ' ) Is C-shaped.

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