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A foldable three-wheel baby carriage includes an operation device mounted on the horizontal section of each of the two push bars, a front shock-absorbing device mounted between the front wheel and the two front frames, two rear connecting devices each mounted between a respective one of the two rear

A foldable three-wheel baby carriage includes an operation device mounted on the horizontal section of each of the two push bars, a front shock-absorbing device mounted between the front wheel and the two front frames, two rear connecting devices each mounted between a respective one of the two rear wheels and a respective one of the two rear frames, and two rear shock-absorbing devices each mounted between a respective one of the two rear wheels and a respective one of the two rear frames. Thus, the foldable three-wheel baby carriage may provide shock-absorbing and braking functions, thereby protecting the baby. In addition, the connecting devices and the operation device of the foldable three-wheel baby carriage are arranged in hidden manner, thereby enhancing the aesthetic quality of the foldable three-wheel baby carriage.

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A foldable three-wheel baby carriage includes an operation device mounted on the horizontal section of each of the two push bars, a front shock-absorbing device mounted between the front wheel and the two front frames, two rear connecting devices each mounted between a respective one of the two rear

A foldable three-wheel baby carriage includes an operation device mounted on the horizontal section of each of the two push bars, a front shock-absorbing device mounted between the front wheel and the two front frames, two rear connecting devices each mounted between a respective one of the two rear wheels and a respective one of the two rear frames, and two rear shock-absorbing devices each mounted between a respective one of the two rear wheels and a respective one of the two rear frames. Thus, the foldable three-wheel baby carriage may provide shock-absorbing and braking functions, thereby protecting the baby. In addition, the connecting devices and the operation device of the foldable three-wheel baby carriage are arranged in hidden manner, thereby enhancing the aesthetic quality of the foldable three-wheel baby carriage. comprises one or more pneumatic spring(s) each of which has a support mounting-portion thereof engaged directly or indirectly to said one or more frame structure(s) that is supported by said primary suspension-system and each of which has a supported mounting-portion thereof engaged directly or indirectly to said axle beam such that said pneumatic springs act in parallel to said leaf-spring groups to support said frame structure(s); (n) each of said leaf-spring groups comprises an anti-windup leaf-spring; (o) each of said anti-windup leaf-springs comprises an anchor portion that is pivotally engaged about a horizontal axis transverse to said longitudinal axis of said vehicle to a same frame rail as is said primary leaf-spring of said leaf-spring group of which said anti-windup leaf is part; (p) each of said anti-windup leaf-springs comprises a cantilevered mounting-portion that is disposed at a distance along a longitudinal axis of said anti-windup leaf-spring from said anchor portion thereof and that is engaged to said axle beam in such a manner that, relative to said axle beam, rotation of said cantilevered mounting-portion about a longitudinal axis of said axle beam is prevented; and (q) any portion of each of said anti-windup leaf-springs that extends from said cantilevered mounting-portion away from said anchor portion thereof is free of any direct engagement to said reciprocating mounting-portion of said primary leaf-spring and said structure to which said reciprocating mounting-portion of said primary leaf-spring is engaged. 2. The vehicle of claim 1, wherein: (a) each of said leaf-spring groups comprises only one weight-supporting leaf-spring, that weight-supporting leaf-spring being said primary leaf-spring of said leaf-spring group. 3. A vehicle, comprising: (a) a suspended structure is one or more frame structures to which a majority of other components of said vehicle are directly or indirectly engaged and which provide structural strength which maintains proper relative locations of said other components of said vehicle; (b) a primary suspension-system; (c) wherein said primary suspension-system of said vehicle comprises one or more ground-engaging component(s) such as wheel(s), track(s), and/or runner(s) that move along the ground when said vehicle is in motion; (d) wherein said primary suspension-system of said vehicle further comprises a plurality of springs that are engaged between said ground-engaging component(s) and said frame structure(s) of said vehicle, and which support said frame structure(s) of said vehicle in a cushioned manner; (e) one or more bad structure(s) each of which is directly or indirectly engaged to and supported by said frame structure(s) of said vehicle; (f) said primary suspension-system which includes said plurality of springs that are engaged to and supported by a spring-support components and that are engaged directly or indirectly to and support said suspended structure of said vehicle in a cushioned manner; (g) wherein said plurality of springs of said primary suspension-system comprise two or more leaf-spring groups; (h) wherein each of said leaf-spring groups comprises a primary leaf-spring which has an outer mounting-portion that is an anchor portion and another outer mounting-portion that is a reciprocating mounting-portion and one or more inner mounting-portion(s); (i) wherein each of said primary leaf-springs either has both of its outer mounting-portions engaged directly or indirectly to said suspended structure and not to said spring-support components or has both of its outer mounting-portions engaged directly or indirectly to one or more of said spring-support components and not to said suspended structure; (j) wherein each of said primary leaf-springs has its inner mounting-portion(s) engaged directly or indirectly to whichever of said suspended structure and said spring-support components its outer mounting-portions are not e ngaged to; (k) wherein each of said primary leaf-springs has its anchor portion engaged to whichever of said suspended structure and said spring-support components it is engaged to in such a manner that, relative to whichever of said suspended structure and said spring-support components said anchor portion is engaged to, translation of said anchor portion of said primary leaf-spring is prevented in all directions, rotation of said anchor portion of said primary leaf-spring about vertical axes is prevented, and rotation of said anchor portion of said primary leaf-spring about a longitudinal axis of said primary leaf-spring is prevented; (l) wherein each of said primary leaf-springs has its reciprocating mounting-portion engaged to whichever of said suspended structure and said spring-support components it is engaged to in such a manner that, relative to whichever of said suspended structure and said spring-support components said reciprocating mounting-portion is enqaged to, translation of said reciprocating mounting-portion is prevented in all directions perpendicular to said longitudinal axis of said primary leaf-spring, rotation of said reciprocating mounting-portion about vertical axes is prevented, and rotation about said longitudinal axis of said primary leaf-spring is prevented; (m) wherein each of said primary leaf-springs has its inner mounting-portion(s) engaged to whichever of suspended structure and said spring-support components said inner mounting-portion(s) are engaged to, in such a manner that, said inner mounting-portion(s) of said primary leaf-spring are translationally and rotationally fixed in all directions relative to whichever of said suspended structure and said spring-support components said inner mounting-portion(s) are engaged to; (n) wherein said primary suspension-system of said vehicle further comprises one or more pneumatic spring(s) that is/are engaged directly or indirectly to said suspended structure and is/are engaged directly or indirectly to one or more spring-support component(s) of said primary suspension-system in such a manner that one or more of said pneumatic springs act(s) in parallel to said two or more leaf spring-groups to assist in supporting said suspended structure; (o) one or more of said leaf-spring groups comprises an anti-windup leaf-spring; (p) each of said anti-windup leaf-springs comprises an anchor portion that is engaged to a same structure as is said anchor portion of said primary leaf-spring of said leaf-spring group that comprises said anti-windup leaf-spring; (q) said anchor portion of each of said anti-windup leaf-springs is engaged to said same structure as said anchor portion of said primary leaf-spring in such a manner that, relative to said structure to which said anchor portions of said primary leaf-spring and said anti-windup leaf-spring are engaged, translation of said anchor portion of said anti-windup leaf-spring is prevented in all directions, rotation of said anti-windup leaf-spring is prevented about a longitudinal axis of said anti-windup leaf-spring, and rotation of said anchor portion of said anti-windup leaf-spring is prevented about vertical axes; (r) each of said anti-windup leaf-springs comprises a cantilevered mounting-portion that is disposed at a distance from said anchor portion of said anti-windup leaf-spiring along said longitudinal axis of said anti-windup leaf-spring; (s) each of said cantilevered mounting-portions of each of said anti-windup leaf-springs is engaged to whatever structure said inner mounting portion(s) of said primary leaf-spring is/are engaged to in such a manner that said cantilevered mounting-portion is prevented from rotating about axes perpendicular to its longitudinal axis relative to whatever structure said inner-mounting portion(s) of said primary leaf-spring is/are engaged to; (t) any portion of each of said anti-windup leaf-springs that extends from said cantilevered mounting-portio n away from said anchor portion thereof is free of any direct engagement to said reciprocating mounting-portion of said primary leaf-spring and said structure to which said reciprocating mounting-portion of said primary leaf spring is engaged; (u) said spring-support components that support said leaf-spring groups and said pneumatic springs of said primary suspension-system are supported by and/or include an axle beam of said primary suspension-system of said vehicle; (v) said one or more frame structure(s) that are said suspended structure comprises two frame rails that extend parallel to one another and also to a longitudinal axis of said vehicle; (w) each of two of said leaf-spring groups is engaged to an underside of one of said frame rails; (x) said outer mounting-portions of each of said primary leaf-springs, of said two leaf-spring groups that are engaged to an underside of one of said frame rails, are engaged to an underside of one of said frame rails; and (y) said inner mounting-portion of each of said two primary leaf-springs, that have their outer mounting-portions engaged to said underside of one of said frame rails, is engaged to said axle beam of said primary suspension system.