ES1061632U - Folding chassis for children cars (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Folding chassis for children strollers, comprising two lateral rear wheels and a front rolling support, and a u handlebar that at the end of its branches is removably coupled to an intermediate point of two separate side elements related to the rear wheels by separate threaded bushes on the shaft to which these are coupled and on which are fixed two connecting rods connected to a central support displaceable longitudinally by a central spar, characterized in that the axle to which the rear wheels are coupled is constituted by a central section at that are coupled two extreme sections, one for each wheel, ensuring this coupling by the own fixation of the indicated connecting rods to the shaft and with the presence of a crosspiece that links the indicated bearing bushes to each other. (Machine-translation by Google Translate, not legally binding)

Description

Folding chassis for strollers.

Object of the invention

Folding chassis for strollers.

Field of the Invention

This chassis is intended for strollers children comprising three wheels, two rear and a central lead.

Background of the invention

Some years have been known for some models of this class of strollers which present some inconveniences such as excess volume once folded, difficulty getting folded by the person who Carries the stroller, and once folded they do not stand which makes handling difficult and saves.

Some of these problems have already been solved in the folding chassis for strollers object of Utility Model No. 200501565 of which the own requesting firm, whose chassis comprises two wheels lateral backs and a centered front rolling support, and a U-handlebar that is coupled by the end of its branches removably to an intermediate point of lateral elements related to the rear wheels, being characteristic the fact that the side elements related to the wheels later, they are finished off with two bearing bushings strung on the section center of the axle coupled to the rear wheels through two inflected sections, whose central section are two connecting rods articulated with a central support where articulates by its middle section a U element that by the end of its branches articulate to the extreme area of the handlebar branches and that through an intermediate point of the same articulates the lateral elements related to the rear wheels.

The indicated central support is attached and guided longitudinally on the underside of a central crossbar which at its rear end is coupled by a bearing block in the central section of the shaft coupled to the rear wheels and that at its front end includes the provision of the rolling support constituted by a double wheel self-orientating.

Summary of the invention

With the folding chassis object of the invention, improves the constitution of the back of it that results reinforced, and also achieves greater stability of the chassis in the front rolling support.

This is characteristic of this chassis the fact that the constitution of the axis (to which the rear wheels) based on a central section and two sections ends, one for each wheel, which are fixed together by the attachment of the connecting rods themselves to said axis, is secured with the presence of a crossbar that links the two indicated bushings-bearing.

As for the front rolling support includes characteristically two independent wheels that are supported by two short arms derived laterally from the end front of the central crossbar in opposite directions.

These and other features will come off better than the detailed description that follows, to facilitate which It is accompanied by two sheets of drawings in which it has been represented a case study that is cited only by way of non-limiting example of the scope of the present invention.

Description of the drawings

In the drawings:

Figure 1 shows the assembly of this chassis improved seen in later perspective,

Figure 2 is a perspective detail of the constitution of the rear wheel axle and the elements associated with it, and

Figure 3 illustrates in perspective the detail of the constitution of the front rolling support.

Detailed description

According to the drawings this folding chassis for strollers it includes two rear wheels (1) and (2) and a front rolling support (3), and a U-handle (4) that by the end of its branches (5) and (6) removably attaches to a point  intermediate lateral elements (7) and (8) related to the rear wheels (1) and (2), which by its upper end (9) articulate to the front end of two armrests (10) and (11) that at its rear end are articulated by point (12) to the respective handlebar branches.

The indicated lateral elements (7) and (8) are top off with two bearing bushings  (13) and (14) strung on the axle coupled to the wheels posterior (1) and (2).

Two cranks (18) and (19) related articulately by its free end (20) (figure 2) with a central support (21) by means of an arched plate (22) articulated by its front end (23) to said central support (twenty-one).

In this central support (21) articulate by its middle section a U element of branches (24) and (25) that by their ends articulates to the lower end zone (26) of the branches of the handlebar, and by an intermediate point (27) thereof articulates the elements (7) and (8) related to the wheels later.

The central support (21) is coupled and guided in  a groove provided on the underside of a stringer (30) that at its rear end is coupled by a bearing block (31) in the central part of the shaft carrier of the rear wheels and that at its front end It includes the mounting of the rolling support (3).

The handlebar (4) comprises a U-handle (32) articulated by shafts (33) (provided with a device blocking (34)) to the indicated branches (5) and (6), which they comprise in their upper part two sliding controls (35) and (36) for unlocking the lower end coupling (37) of said branches in receiving devices (38) provided in the intermediate point of the lateral elements (7) and (8).

The axle to which the wheels are attached later (1) and (2) is constituted by a central section (15 ') (figure 2) to which two extreme sections are coupled inflected (16 ') and (17'), one for each wheel, whose coupling it is fixed by means of the own support (39) of the connecting rods (18) and (19) to the shaft, and is secured by the presence of a crossbar (40) which links the bearing bushings (13) and (14) for which they present these two appendices (13 ') and (14') which are fixed on respective end stumps (40 ') of the indicated crossbar.

The front rolling support (3) comprises two independent wheels (41) and (42) (figure 3) supported self-orientated in two arms (43) and (44) derived laterally from the front end of the central crossbar (30) in directions divergently opposed.

This chassis, in the armrests (10) and (11), It includes two boxes (45) and (46) for receiving the coupling means of the corresponding baby seat (not shown) and will be equipped with the appropriate accessories such as the suspension means and brake.

The invention, within its essentiality, can be put into practice in other embodiments that differ only in detail from that indicated solely by way of example, which will also achieve the protection that collect. This folding chassis can then be manufactured to strollers in any shape and size, with the means and most suitable materials and with the most convenient accessories, the component elements can be replaced by others technically equivalent, because it is all included within of the spirit of the claims.

Claims (2)

1. Folding chassis for strollers, comprising two lateral rear wheels and a front rolling support, and a U-handlebar that is removably coupled to the intermediate point of two lateral elements related to the rear wheels by means of two bushings-bearing strung on the axle to which they are attached and on which two connecting rods are connected related to a central support movable longitudinally by a central stringer, characterized in that the axle to which the rear wheels are coupled is constituted by a central section to the that two extreme sections are coupled, one for each wheel, ensuring this coupling by means of the fixation of the indicated connecting rods to the axle and with the presence of a crossbar that links each other to the indicated bearing bushings. 2. Folding chassis for strollers, according to claim 1, characterized in that the front rolling support comprises two independent wheels supported by two short arms derived laterally from the front end of the central stringer in opposite directions.