Self-service shopping cart
United States Patent 1 Bruggeman [451 Apr. 8, 1975 1 SELF-SERVICE SHOPPING CART [75] lnventor:  
 [73] Assignee: N.V. Bekaert S.A., Zwevegem,  
 Belgium 22 Filed: Jan. 22, 1974 211 Appl. No.: 435,524  
 Frans Bruggeman, Zulzeke, Belgium [30] Foreign Application Priority Data Jan. 31. 1973 Netherlands 7301414 [52] US. Cl. 280/3339 S [51] Int. Cl. B62b 11/00 [58] Field of Search 280/3399 TZ, 33.99 H,  
 280/3399 S, 3399 F, 33.99 T, 33.99 A, 33.99 B; 186/1 AC [56] References Cited UNITED STATES PATENTS 2,639,161 5/1953 Goldman 280/3399 S 2,689,134 9/1954 La Chance 280/3399 S 3,168,323 2/1965 Hill, Sr. 280/36 R 3.739.878 6/1973 Jay 186/1 AC 3,789,957 2/1974 Close 280/3399 F X FOREIGN PATENTS OR APPLICATIONS 599,467 1959 Italy 280/3399 S 1,163,199 1958 France 280/3399 F Primary Examiner-David Schonberg Assistant Examiner-David M. Mitchell Attorney, Agent, or Firm-Schlesinger, Arkwright, Garvey &amp; Dinsmore [57] ABSTRACT A mobile self-service shopping cart. It comprises a base frame narrowing toward the front, a pulling or pushing frame mounted thereon and a basket for containing the goods to be transported. The basket includes a bottom section which rises obliquely and narrows toward the front and a swingable rear section. The front and side sections of the basket are rectangular and form a rectangular panel of wire mesh when in an unfolded position.  
 6 Claims, 2 Drawing Figures SELF-SERVICE SHOPPING CART The invention relates to a mobile self-service shopping cart comprising a base frame narrowing towards the front, a pulling or pushing frame mounted thereon and a basket for containing the goods to be transported. The bottom of the basket rises obliquely and narrows towards the front, and the rear section of the basket is swingable.  
  Self-service shopping cartsof this type are apt for self-service shops and are generally known. The base frame narrows towards the front and the basket has the shape of a truncated pyramid to thereby permit the carts to engage drawback, however, nest into one another. A drawback,however, is that the side sections of the basket are of a complicated quadrangular or trape zoidal shape. The manufacture of similar side sections is a cumbersome and time-consuming operation.  
  On the other hand, the front section of the basket has in most cases a regular, for example a rectangular, shape. In addition, the mounting of the different elements of the basket requires the securement of said side sections to the front section. This securement is an additional operation.  
  The object of this invention is to provide a mobile self-service shopping cart which can be easily manufactured.  
  According to the invention and to that end, the baskets front and side sections of the self-service shopping cart of the aforementioned type form a rectangle in their unfolded position and consist of welded wire mesh. The great advantage resulting therefrom is that the front and side sections can be made of welded mesh that may be cut off from any ordinary roll of welded mesh without producing scrap. If the front and side sections according to the invention form one single rectangular panel of welded mesh in unfolded position, the formation of the baskets said front and side sections can be limited to one pressing operation of the rectangular welded mesh panel in the exact shape. It is obvious that the cost of the cart may be decreased in doing so because two very cumbersome and time-consuming operations are eliminated.  
  According to the invention it is also possible that both the front section and the side sections each consist of one rectangular welded mesh panel. It may in particular be observed that a number of carts according to the invention can engage into one another since the base frame ofthe cart and the bottom of the basket are properly manufactured to that end. Self-service shopping carts, whereby the basket has the shape of a rectangular box, or in other words, a basket which can be manufactured in a simple way, are generally known.  
 The disadvantage of similar carts, however, is that they cannot engage into one another.  
  Since the side sections of the self-service shopping carts known to date are more irregular in shape, it is necessary to have the transverse and longitudinal wires of the welded mesh panels constituting said sections run obliquely and fan-like with respect to each other in order to avoid too wide and irregularly spaced openings in said side sections of the basket and to thereby prevent the goods contained in said basket from falling out. In the cart according to the invention, the longitudinal and transverse wires of the welded mesh panels constituting said sections cross each other rectangularly. It is obvious that another cumbersome operation is eliminated as a result thereof.  
  In order to be able to mount said side sections of the cart according to the invention easily and exactly, the dihedral angle formed between the bottom and the rear section of the basket shall preferably be substantially rectangular.  
  In order to obtain a well closed basket in the cart according to the invention and in order to make the engaging into one another possible, it is desirable that the rear section of the basket be pivotable about an axis of suspension that is situated above the side sections, or that the rear section pivots about either of the bordering edges of the side sections.  
  The invention will be further described with reference to the accompanying drawings in which:  
  FIG. 1 is a perspective view ofa self-service shopping cart according to the invention, whereby part of a side section is broken away to clearly illustrate the obliquely rising and narrowing bottom of the basket, and  
  FIG. 2 is a view of two carts according to the invention engaged into one another.  
  The self-service shopping cart 1 according to FIGS. 1 and 2 consists of a forwardly tapered base frame 2 that is provided with wheels 3. A pulling or pushing frame 4 is mounted on said base frame 2. Said pulling or pushing frame 4 is, in addition, a supporting frame for a basket 5 for containing the goods to be transported.  
  In order to make the engagement of said carts into one another possible, it is necessary that the bottom 6 of the basket 5 taper and slightly rise towards the front, and that the rear section 7 of the basket 5 be swingable.  
  The front section 8 and side sections 9 of the basket 5 form together a rectangular welded mesh panel in their unfolded position. Said welded mesh panel can easily be given the required shape by means of a pressure operation to form the side and front sections of the basket 5. Said front section 8 and side sections 9 are secured to the bottom 6 by means of any currently used procedure, for example welding.  
  It is obvious that the heights of the front section and the side sections 9 need not be equal, and that it is also possible that both the front section 8 and the side sections 9 each consist of single rectangular welded mesh panels.  
 As is clear from FIG. 1, it is possible with the cart 1 according to the invention that the longitudinal and transverse wires of the side sections welded mesh cross each other rectangularly without unwanted large openings being formed.  
  It also appears from FIG. 2 that the dihedral angle formed between the bottom 6 and the rear section 7 of the basket 5 is substantially rectangular.  
  The rear section 7 is pivotable about an axis of suspension 10 that is considerably above the uppermost wires of the front section 8 and the side sections 9. It will also be possible to make the rear section 7 pivot about a bordering edge of either of the side sections 9. Obviously, several modifications and variations of the present invention are possible.  
 What is claimed is:  
 1. A mobile self-service shopping cart comprising:  
 a. a base frame narrowing in a forward direction,  
 b. a pulling or pushing frame connected to and extending upwardly from said base frame,  
 c. a basket mounted on said pulling or pushing frame,  
 d. said basket includingiiabottom section obliquely rising and narrowing in the forward direction and a swingable rear section,  
 , e. said basket injcludinga front section and two substantially rectangular side &#34;sections a djacent said 5 front section, said front and side sections having substantially coplanar top edges and substantially coplanar bottom edges,  
 . f. said front and side sections comprising a folded j. hinge means connected to said rear panel for pivotally supporting same,  
 k. said hinge means being spaced rearwardly and outwardly of said front section to permit horizontal nesting of like baskets.  
  2. The shopping cart of claim 1 and wherein said hinge means is positioned above said front section.  
  3. The shopping cart of claim 1 and wherein said rear section and said bottom section cooperate to define a substantially rectangular dihedral angle between them.  
  4. The shopping cart of claim 1 and wherein said hinge means is positioned above said side sections.  
  5. The shopping cart of claim 1 and wherein said front section is substantially rectangular.  
  6. The shopping cart of claim 5 and wherein said front section connects with said side sections about a pair of folds in said panel lying parallel to said transverse wires.