US 6,471,222 B1Granted

Adjustable seat back arrangement for stroller

OwnerBen M. Hsiainventor

Life of this patent

Estimating the term…

Abstract

An adjustable seat back arrangement for stroller includes two elongated elements extended from two construction bars to a rear side of a back support, an inclination locker securely locked up the two elongated elements together for adjusting lengths of the elongated elements between the construction bars and the inclination locker so as to adjust an inclined angle of the back support with respect to a seat support.

Claims8

Dependent claims

A stroller, comprising:

a supporting frame, a seat frame supported by said supporting frame, and a handle frame having two construction bars upwardly extended from said supporting frame wherein said seat frame comprises a seat support horizontally supported by said supporting frame and a back support upwardly extended from said seat support;
and
an adjustable seat back arrangement, which comprises:
two elongated elements, each having a predetermined length, extended from said two construction bars respectively to a rear side of said back support, wherein each of said elongated elements is a string having one end extended from said respective construction bar;
an inclination locker comprising a locker body which is a hollow body having an opened end and a closed end and an operation which has an inner end slidably inserted into said locker body, and a spring disposed between said closed end of said locker body and said inner end of said operation body, wherein said locker body has a locker hole radically passes through a central portion of said locker body and two free end portions of said two elongated elements slidably penetrate through said locker hole, wherein said operation body further has a locking hole radically passing through in such a manner that said locking hole and said locker hole are able to be arranged coaxially overlapped with each other when pushing an outer end of said operation body towards said closed end of said locker body so as to enable two free end portions of said two elongated elements slidably passing through both said locker hole and said locking hole, wherein said spring normally pushes said operation body towards said opened end thereof and reduces a gap formed between said locking hole and said locker hole, wherein said locker body and said operation body compress said two elongated elements passing therethrough so as to securely and firmly lock up said two elongated elements together in any predetermined position along a length of said each of said elongated elements to adjust said lengths of said two elongated elements between said construction bars and said inclination locker respectively so as to adjust an inclined angle of said back support with respect to said seat support;
and
at least two elongated element guiders spacedly provided on two halves of said rear side of said back support respectively for supporting and guiding said two elongated elements respectively, wherein each of said elongated element guiders has a guiding slot and said two elongated elements are extended to slidably pass through said two guiding slots respectively so as to guide said two elongated elements extending to connect with said inclination locker.

4 more elements

Dependencies are inferred from the claim text.

patentgrep

Loading patent…

Abstract

A stroller, comprising:

a supporting frame, a seat frame supported by said supporting frame, and a handle frame having two construction bars upwardly extended from said supporting frame wherein said seat frame comprises a seat support horizontally supported by said supporting frame and a back support upwardly extended from said seat support;
and
an adjustable seat back arrangement, which comprises:
two elongated elements, each having a predetermined length, extended from said two construction bars respectively to a rear side of said back support, wherein each of said elongated elements is a string having one end extended from said respective construction bar;
an inclination locker comprising a locker body which is a hollow body having an opened end and a closed end and an operation which has an inner end slidably inserted into said locker body, and a spring disposed between said closed end of said locker body and said inner end of said operation body, wherein said locker body has a locker hole radically passes through a central portion of said locker body and two free end portions of said two elongated elements slidably penetrate through said locker hole, wherein said operation body further has a locking hole radically passing through in such a manner that said locking hole and said locker hole are able to be arranged coaxially overlapped with each other when pushing an outer end of said operation body towards said closed end of said locker body so as to enable two free end portions of said two elongated elements slidably passing through both said locker hole and said locking hole, wherein said spring normally pushes said operation body towards said opened end thereof and reduces a gap formed between said locking hole and said locker hole, wherein said locker body and said operation body compress said two elongated elements passing therethrough so as to securely and firmly lock up said two elongated elements together in any predetermined position along a length of said each of said elongated elements to adjust said lengths of said two elongated elements between said construction bars and said inclination locker respectively so as to adjust an inclined angle of said back support with respect to said seat support;
and
at least two elongated element guiders spacedly provided on two halves of said rear side of said back support respectively for supporting and guiding said two elongated elements respectively, wherein each of said elongated element guiders has a guiding slot and said two elongated elements are extended to slidably pass through said two guiding slots respectively so as to guide said two elongated elements extending to connect with said inclination locker.

4 more elements