FR2531394A3 - CARRIAGE CHASSIS STRUCTURE FOR TROLLEYS AND THE LIKE - Google Patents

Abstract

THIS STRUCTURE 1 INCLUDES A CARRYING CENTRAL BAR 2 INCLINED DOWNWARDS FROM ITS REAR END TO ITS FRONT END, CORRESPONDING TO THE REAR END OF THE said CENTRAL BAR 2 BEING FIXED A CROSSMOUNT 4 FOR THE SUPPORT OF A BASKET, IN PARTICULAR A BASKET FOR PROVISIONS, AND FLANGES 7 TO WHICH ARE ASSEMBLED THE REAR WHEELS 9 OF THE TROLLEY, AND IN CORRESPONDENCE OF THE FRONT END OF THE CENTRAL BAR 2 BEING FIXED A TRANSVERSAL ARM 20 WHICH SUPPORTS THE FRONT WHEELS 21 OF THE TROLLEY. APPLICATIONS ESPECIALLY TO PLUG-IN CARTS FOR SUPERMARKETS.

Description

The present invention relates to a carrier structure for

  trolleys and the like O As is known the trolleys that are

  used in supermarkets are usually

  They are provided by a base frame mounted on pi = votantes wheels which has flanges to which the cart basket can be fixed. In the advanced solutions, the arrangement is such that

  that the basic chassis presents a pre-

  dominant in a horizontal plane 9 thus having the effect of creating an area for loading crates or general products that may escape attention at the time of the passage of the trolley to the crates

of payment.

  Another disadvantage attributable to the known type of solutions is that the realization of the base of the chassis is generally noticeably complex, making the phages of the ch sssis long and laborious 9 with a negative response obvious on the coets of productiono The aim of the invention is to realize a new type of carrier chassis structure for

  trolleys which does not present the basic element

  Therefore, a further particular object of the invention 9 in the aforementioned framework is to provide a carrier frame structure for trolleys and the like that is structurally simple. , has qualities

  high mechanical strength.

  Yet another object of the invention is to provide a chassis structure which, because of its constructional features, is able to provide the greatest guarantees of reliability and safety in use. invention, but by no means the last, is to provide a chassis structure which can be easily manufactured from elements normally available on the market and which is, moreover, highly competitive from a public point of view.

economically.

  The aforementioned objectives, as well as others which will appear better in the following, are achieved according to the invention, by a carrier chassis structure for trolleys and the like, characterized in that it comprises a bearing central bar inclined towards the bottom going from its rear end to its front end, corresponding to the rear end of said central bar being associated with a

  crossbar for fastening the basket and flanges to

  the support of the rear wheels and, in correspondence of the front end of said bar being associated a transverse arm for the support of the front caster wheels.

  Other features and advantages of the invention

  will become clearer from the reading of the

  detailed description which follows, of a structure

  carrier frame for trolleys and the like, given by way of indicative example, but in no way limiting, with reference to the appended drawings, in which: FIG. 1 represents a schematic perspective view of the carrier chassis of the invention; and FIG. 2 shows a side view of a carriage made using the carrier chassis of

the invention.

  Referring to the above figures, it can be seen that the carrier frame structure for trolleys and the like, which is generally designated by the numeral 1, is constituted by a central carrying bar 2 preferably having an elongated cross section and arranged with singing , which is inclined downward from its rear end to

towards its front end.

  In correspondence of its rear end, which

  is at a higher level, the bearing bar 2 pre-

  a flattened portion 3 on which is associated a cross member 4 provided with lateral branches 5 for supporting a basket 6 which can be shaped from

in any way.

  The lateral branches 5 are respectively

  assembled at the upper end of lateral flanges

  7 of polygonal configuration which end inferiorly by a junction section 8 supporting

rear wheels 9.

  To further stiffen the structure, there is provided a cross 10 which meets between the two flanges

  7 and press down on the center bar

inclined aunt 2.

  In addition, the element forming a di-

  The reinforcement groove 11 which is 9 from the lower end of the flanges 7 and is folded in correspondence of the cross member 10 to form

  a triangle part whose summit is

  above the bearing bar 2 so as to create a coupling to the portarite bar which is extremely

stable and strong.

  In correspondence of the front end of the bar

  2 is provided a transverse arm 20 preferably

  Stacked by a round, closed-loop rod or wire that supports front swivel wheels

21.

  Above the zone circumscribing the pivoting wheels 21 is placed a protection element 22 of trapezoidal conformation which is firmly fixed to the central bar 2, as well as to the transverse arm

20 above.

  Thanks to the structure thus described, it follows that the base frame does not have the traditional base element, but is only constituted in practice by the central bearing bar at one end of which are assembled the support flanges rear wheels and basket, while at its other end are assembled the front swivel wheels, thus providing a compact and solid structure that absolutely prohibits the loading of any kind of products below the- basket, In addition, the conformation taken by the frame allows, as is customary with this type of carts, the insertion of carts into each other and more precisely the insertion at least partial baskets to reduce congestion in phase of no

use of trolleys.

  From what has been described above, it can be seen that the invention satisfies the proposed objectives and it emphasizes in particular the fact that it allows to have a carrier chassis for -chariots,

  of a new type which is predominantly

  stituted by a central bar, radically simplifying

all phases of construction.

  In practice, the materials used, to the extent that they are compatible with the specified use, as well as the dimensions and the contingent forms, may be any according to the requirements, without departing from the scope and spirit of said invention.

2 531394

REVEDICATIONS

  1 t Carrier frame structure for trolleys and the like, characterized by the fact that it comprises a load-bearing control bar (2) inclined downwards from its rear end towards its end at Vantq in O ozres Jpondance of the exiterrémète ariere said central bar (2) being associated, a crossbar (4) for fixing the basket (6) and flanges (7) for the support of the rear wheels (9) etq in correspon =

  the end of said bar being

  A tilting arm (20) for supporting the front swiveling zouages (21) o 2 o Carrying frame structure for trolleys and

  similar, according to the preceding claim 9

  controlled by the milk that said central bar carrier (2) has, in cross section, a conformation

  lying and is disposed of singing.

  3 Carrier frame structure for trolleys and

  similar, according to claims I and 29

  in that said cross-member (4) is connected to branches (5) extends laterally with respect to said central bar (2) to define a support base of said basket (6), said branches (5) being associated said lateral flanges (7) for supporting the rear wheels (9), said lateral flanges (7)

  having a polygonal configuration.

  4 Carriage frame structure for trolleys

  and the like according to claims 1 to 3,

  characterized in that it comprises a reinforcing crossbar (10) interconnecting said lateral flanges (7) and coming to engage below said

central bar (2).

  Carrier frame structure for trolleys and

  similar, according to claims 1 to 4,

  characterized in that it comprises a reinforcing diagonal (11) extending from the end

  lower back of said flanges (7) and coming

  interleaving said reinforcing beam (10) at a point of contact where said diagonal is folded into

  before to define a section of configuration

  triangularly done 3 the top is placed above

  of said central bearing burre (2).

  6 Carrier frame structure for trolleys and

  similar, according to claims 1 to 5,

  by the fact that it includes, in correspondence

  said front swivel wheels (21) an element of

  trapezoidal configuration (22) assembled to said transverse arm (20) and said central bar

bearing (2).