Land vehicles – Wheeled – Extensible
Patent
1995-08-10
1998-01-20
Johnson, Brian L.
Land vehicles
Wheeled
Extensible
280655, 280 4738, B62B 700
Patent
active
057094004
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates in general to a folding assembly for supporting an individual, and for example a vehicle for transporting a child, capable of being unfolded into a configuration of use, for example into a rolling configuration in which it may, for example, be pushed by an accompanying individual, and of being folded up into a storage or transport configuration. The invention relates particularly, but not exclusively, to a folding vehicle for transporting a child, regardless of whether this is a stroller or a baby carriage for example; it being understood that the present invention may be applied, on the one hand, to other folding vehicles such as a wheelchair for the disabled, and, on the other hand, to other folding assemblies, such as indoor chair or garden chair.
DESCRIPTION OF THE PRIOR ART
WO 86/03464 already discloses a folding assembly composed: the seat or cradle, this structure including two upright members articulated at their base to the ends of the longitudinal members and able to occupy a storage position in which these upright members are substantially parallel to the longitudinal members, and a position of use in which they form an acute angle with respect to the longitudinal members, positions, slide with respect to the upright members of the carrying structure.
In this folding assembly, the support for the individual is fastened permanently to the upright members of the carrying structure so that in the position of use this support is situated a constant height above the ground whereas for young child it is preferable for the recumbent sleeping position to be lower than the seated position, even if only to improve the stability of the assembly by lowering its center of gravity.
Moreover, when the folding assembly is brought into the storage configuration, the fixed position of the support for the individual on the carrying structure, even if this support is a folding support, forms an protuberance which increases the lengthwise bulk at one of the ends of the folded assembly and does not favor the storing of this assembly.
To this should be added the fact that the numerous manipulations required to change from one configuration to the other render these conversions difficult and sometimes dangerous for one's fingers.
SUMMARY OF THE INVENTION
The object of the present invention is to overcome these drawbacks by supplying a folding assembly of the aforementioned type, making it possible to modify the distance relative to the ground of the support for the individual or child, to reduce the number of manipulations required for changing configuration, while lowering the manufacturing cost.
To this end, in the folding assembly according to the invention, the support for the individual is fixed between and onto the two branches of the guiding handle, while a mechanism for locking the height, in at least two predetermined positions of said support in its use configuration, is interposed between at least one upright member of the carrying structure and the corresponding branch of the guiding handle.
By virtue of this arrangement, when the assembly is in the configuration of use, the support for the individual, and for example the seat, may occupy at least two positions, namely a high, seated, position and a low position for lying down. Depending on the number of positions allowed by the immobilization mechanism, this low position may be the same as or different than the position occupied by the support for the individual when the assembly is in the storage configuration.
In one embodiment of the invention, the means for angular immobilization of the two structures comprise, at least on one side of the structures: corresponding longitudinal member of the bearing or rolling structure, and is associated with elastic return means, and the upper end of which is secured to a transverse pin mounted so that it can slide in a longitudinal slot of the corresponding upright member, located in the extension of one another close to the aforementioned slot, each of
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patent: 3550998 (1970-12-01), Boudreau
patent: 4354689 (1982-10-01), Perego
patent: 4856809 (1989-08-01), Kohus et al.
patent: 5234224 (1993-08-01), Kim
patent: 5398951 (1995-03-01), Ryu
patent: 5524503 (1996-06-01), Ishikura
Bonnier Georges
Bonnier Michel
Taillard Andre
Johnson Brian L.
MGB
Vanaman Frank
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