초록 ▼

The present invention relates to a push chair for elderly or disabled adults, of the type formed of two tubular sides, with a seat and a backrest with collapsible structure fixed between them, capable of being brought closer and farther by means of two pantograph-shaped crosspieces interposed betwee

The present invention relates to a push chair for elderly or disabled adults, of the type formed of two tubular sides, with a seat and a backrest with collapsible structure fixed between them, capable of being brought closer and farther by means of two pantograph-shaped crosspieces interposed between them, characterized in that the two sides are simultaneously moved close and folded, in such a way that the front wheel of each side is placed in vertically aligned position above the back wheel.

대표청구항 ▼

The invention claimed is: 1. Pushchair for elderly or disabled adults, of the type formed of a first and a second tubular side, having a seat and a backrest respectively fixed between the first and the second tubular side, the seat and the backrest being respectively formed of collapsible material,

The invention claimed is: 1. Pushchair for elderly or disabled adults, of the type formed of a first and a second tubular side, having a seat and a backrest respectively fixed between the first and the second tubular side, the seat and the backrest being respectively formed of collapsible material, the first and second tubular side being capable of being brought closer and farther relative to one another by means of a first and a second pantograph-shaped crosspieces, the first pantograph-shaped crosspieces comprising a rear crosspiece and the second pantograph-shaped crosspieces comprising a front crosspiece, the front crosspiece being shorter than the rear crosspiece, the front crosspiece and the rear crosspiece being interposed between the first and the second tubular side, wherein: the first tubular side is formed of a first rear vertical tubular section and of a first short front vertical tubular section, wherein a first wheel is supported at the lower end portion the first rear vertical tubular section, wherein the upper end portion of the first rear vertical tubular section extends upwardly and is slightly incline backwards relative to the back end portion of the pushchair, wherein the upper end portion of the first rear vertical tubular section forms a first handle, wherein a first swivel wheel is supported at the lower end portion of the first short front vertical tubular section, and wherein the first rear vertical tubular section is longer than the first short front vertical tubular section; the first rear vertical tubular section and the first short front vertical tubular section are mutually connected and articulated by means of a first lower crossbar and a first arm on a first side of the pushchair, wherein the first lower crossbar and the first arm are capable of joint oscillations; the pushchair characterized in that, the first lower crossbar is pivoted, with respect to a suitable pin with horizontal axis, between an end portion of a first inward protruding bracket towards the bottom end portion of the first rear vertical tubular section and a first point on the first short front vertical tubular section near the lower end portion of the first short front vertical tubular section; the second tubular side is formed of a second rear vertical tubular section and of a second short front vertical tubular section, wherein a second wheel is supported at the lower end portion the second rear vertical tubular section, wherein the upper end portion of the second rear vertical tubular section extends upwardly and is slightly incline backwards relative to the back end portion of the pushchair, wherein the upper end portion of the second rear vertical tubular section forms a second handle, wherein a second swivel wheel is supported at the lower end portion of the second short front vertical tubular section, and wherein the second rear vertical tubular section is longer than the second short front vertical tubular section; the second rear vertical tubular section and the second short front vertical tubular section are mutually connected and articulated by means of a second lower crossbar and a second arm on the other side of the pushchair, wherein the second lower crossbar and the second arm are capable of joint oscillations, and wherein the first arm and the second arm support the seat; the pushchair characterized in that, the second lower crossbar is pivoted, with respect to a suitable pin with horizontal axis, between an end portion of a second inward protruding bracket towards the bottom end portion of the second rear vertical tubular section and a second point on the second short front vertical tubular section near the lower end portion of the second short front vertical tubular section; the rear crosspiece is positioned in such a way that respective upper end portions of the rear crosspiece are respectively fixed, with respect to suitable pins with horizontal axis, on corresponding wings protruding edgeways on the back of the slightly backwardly inclined portion of the respective upper end portion of the first and the second rear vertical tubular section, while the respective lower ends of the rear crosspiece are pivoted, with respect to suitable pins with horizontal axis, on respective rear end portion of the first and the second lower crossbar, upstream from the respective pivoting point between the first lower crossbar and the first inward protruding bracket, and between the second lower crossbar and the second inward protruding bracket, respectively; and respective upper end portions of the front crosspiece are respectively pivoted, with respect to pins with horizontal axis, under the first and the second arm, respectively, while the respective lower end portions of the front crosspiece are respectively pivoted, with respect to pins with horizontal axis, on the first and the second lower crossbar, in internal position in comparison to the pivoting point of the first and the second lower crossbar with the first and second short front vertical tubular section, respectively. 2. Pushchair according to claim 1, characterized in that the first arm and the second arm are pivotable, wherein the first arm is pivotable with respect to a suitable pin with horizontal axis, between a central point on the first rear vertical tubular section and a point on the top end portion of the first short front vertical tubular section, and wherein the second arm is pivotable with respect to a suitable pin with horizontal axis, between a central point on the second rear vertical tubular section and a point on the top end portion of the second short front vertical tubular section. 3. Pushchair according to claim 2, characterized in that the first arm is hinged to the first rear vertical tubular section by means of a first inwards protruding fork, and the second arm is hinged to the second rear vertical tubular section by means of a second inwards protruding fork. 4. Pushchair according to claim 1, characterized in that the respective upper end portions of the front crosspiece are respectively pivoted to the first and the second arm, by means of suitable corresponding first bushing and second bushing, wherein the first bushing has a horizontal axis and is mounted in lower position on the first arm, and wherein the second bushing has a horizontal axis and is mounted in lower position on the second arm. 5. Pushchair according to claim 1, characterized in that the pushchair is provided with a first sleeve and a second sleeve, the first sleeve is provided on the first short front vertical tubular section and the second sleeve is provided on the second short front vertical tubular section, the first sleeve is designed to support a first footrest platform in protruding position by means of a first suitable supporting arm with adjustable length, the second sleeve is designed to support a second footrest platform in protruding position by means of a second suitable supporting arm with adjustable length, wherein the first and the second sleeve are respectively capable of externally rotating by about 180° respectively on the first and the second tubular side; wherein the first and second footrest platform can respectively be positioned edgeways, in non-operating position, with respect to the first and second suitable supporting arm respectively. 6. Pushchair according to claim 1, characterized in that the first lower crossbar is disposed in lower position on the first tubular side, the first lower crossbar has a concave inward section, the second lower crossbar is disposed in lower position on the second tubular side, the second lower crossbar has a concave inward section, the concave inward section of the first lower crossbar is symmetrically opposed to the concave inward section of the second lower crossbar, wherein the concave inward section of the first lower crossbar is disposed in intermediate position between the front end of the first lower crossbar and the hinging point with the first inward protruding bracket, wherein the concave inward section of the second lower crossbar is disposed in intermediate position between the front end of the second lower crossbar and the hinging point with the second inward protruding bracket; and a first footrest platform is pivoted to the first short front vertical tubular section, and a second footrest platform is pivoted to the second short front vertical tubular section, wherein when the pushchair is in operating position, the concave inward section of the first lower crossbar can house the first footrest platform and the concave inward section of the second lower crossbar can house the second footrest platform, when the first footrest platform and the second footrest platform are each respectively rotated laterally and positioned edgeways when the pushchair is in collapsed position. 7. Pushchair according to claim 1, characterized in that laterally disposed end portions of the backrest are fixed to the respective slightly backwardly inclined portion of the upper end portion of the first and the second rear vertical tubular section. 8. Pushchair according to claim 1, characterized in that the first tubular side comprises a first front vertical section with articulated vertical structure extending from the first swivel wheel to a side of the slightly backwardly inclined portion of the upper end portion of the first rear vertical tubular section, wherein the first front vertical section with articulated vertical structure includes, in addition to the first shorter front vertical section, a first intermediate section and a first upper section, wherein the lower end portion of the first intermediate section is hinged, with respect to a pin with horizontal axis, to the upper end portion of the first shorter front vertical section, slightly upstream from the hinging point between the upper end portion of the first shorter front vertical section and the first arm, wherein the upper end portion of the first intermediate section is hinged, with respect to a pin, with horizontal axis, to the lower end portion of the first upper section, the first upper section comprises a first armrest, the upper end portion of the first armrest is pivoted, with respect to a pin with horizontal axis, on the side of the slightly backwardly inclined portion of the upper end portion of the first rear vertical tubular section, wherein the first intermediate section and the first upper section are mutually hinged to one another; and the second tubular side comprises a second front vertical section with articulated vertical structure extending from the second swivel wheel to a side of the slightly backwardly inclined portion of the upper end portion of the second rear vertical tubular section, wherein the second front vertical section with articulated vertical structure includes, in addition to the second shorter front vertical section, a second intermediate section and a second upper section, wherein the lower end portion of the second intermediate section is hinged, with respect to a pin with horizontal axis, to the upper end portion of the second shorter front vertical section, slightly upstream from the hinging point between the upper end portion of the second shorter front vertical section and the second arm, wherein the upper end portion of the second intermediate section is hinged, with respect to a pin, with horizontal axis, to the lower end portion of the second upper section, the second upper section comprises a second armrest, the upper end portion of the second armrest is pivoted, with respect to a pin with horizontal axis, on the side of the slightly backwardly inclined portion of the upper end portion of the second rear vertical tubular section, wherein the second intermediate section and the second upper section are mutually hinged to one another.