An improved pushchair frame (10) of a type that can be collapsed for ease of transport or storage etc. The frame comprising a push/pull handle (12), a front wheel frame (14) on which at least one front wheel (16) is rotatably mounted and a rear wheel frame (18) on which at least one rear wheel (20)
An improved pushchair frame (10) of a type that can be collapsed for ease of transport or storage etc. The frame comprising a push/pull handle (12), a front wheel frame (14) on which at least one front wheel (16) is rotatably mounted and a rear wheel frame (18) on which at least one rear wheel (20) is rotatably mounted. The frame comprising a seat mounting yoke (22) to which the front and rear wheel frames are coupled, at least one of the front and rear wheel frames being pivotably coupled to the yoke, the frames having an operating position in which they are spaced from one another and a stowed position in which they are generally adjacent one another. The seat mounting yoke is rotatable, relative to at least one of the front and rear wheel frames, between an operating position and a stowed position in which the yoke is located generally adjacent one of the front and rear wheel frames. A retaining means maintains the yoke and the front and rear wheel frames in their operating position. When the retaining means are released, the yoke and the front and rear wheel frames may be moved to their stowed positions, thereby folding the pushchair frame.
대표청구항▼
1. A pushchair frame, comprising: a push/pull handle;a front wheel frame on which at least one front wheel is rotatably mounted;a rear wheel frame on which at least one rear wheel is rotatably mounted;a seat mounting yoke to which the front and rear wheel frames are coupled, at least one of the fron
1. A pushchair frame, comprising: a push/pull handle;a front wheel frame on which at least one front wheel is rotatably mounted;a rear wheel frame on which at least one rear wheel is rotatably mounted;a seat mounting yoke to which the front and rear wheel frames are coupled, at least one of the front and rear wheel frames being pivotably coupled to the yoke, the wheel frames having respective operating positions in which they are spaced from one another and respective stowed positions in which they are generally adjacent one another;the seat mounting yoke being rotatable, relative to at least one of the front and rear wheel frames between a front facing operating position and a front facing stowed position and between a rear facing operating positions and rear facing stowed position, wherein the front facing operating position of the yoke allows for mounting a seat in a front facing orientation, wherein the front facing stowed position of the yoke supports the seat in a position adjacent the front wheel frame, wherein the rear facing operating position of the yoke allows for mounting the seat in a rear facing orientation, and wherein the rear facing stowed position of the yoke supports the seat in a position adjacent the rear wheel frame; andretaining means adapted to maintain the yoke and the front and rear wheel frames in their operating position, such that when the retaining means are released, the yoke and the front and rear wheel frames may be moved to their respective stowed positions, thereby folding the pushchair frame. 2. The pushchair frame as claimed in claim 1, wherein: both the front and rear wheel frames are pivotably coupled to the yoke. 3. The pushchair frame as claimed in claim 1, wherein: the yoke is rotatable relative to both the front and rear wheel frames. 4. The pushchair frame as claimed in claim 1, wherein: the retaining means comprise a releasable locking mechanism operable to lock the yoke and the front and rear wheel frames in their respective operating positions. 5. The pushchair frame as claimed in claim 4, further comprising: actuation means coupled to the releasable locking mechanism and operable to unlock the yoke and the front and rear wheel frames from their respective operating positions. 6. The pushchair frame as claimed in claim 5, further comprising: at least one carrying handle disposed on the yoke. 7. The pushchair frame as claimed in claim 6, wherein: the actuation means are disposed on at least one of the carrying handle or push/pull handle. 8. The pushchair frame as claimed in claim 1, wherein: the push/pull handle comprises hinge means provided between, and coupling, an upper part and a lower part of the handle, such that the upper part is moveable between an operating position and a stowed position adjacent the rear wheel frame. 9. The pushchair frame as claimed in claim 1, further comprising: a self-righting mechanism operable to automatically move the yoke into its front facing operating position from its front facing stowed position as the front and rear wheel frames are moved from their stowed to their respective operating positions and to automatically move the yoke into its rear facing operating position from its rear facing stowed position as the front and rear wheel frames are moved from their stowed to their respective operating positions. 10. The pushchair frame as claimed in claim 9, wherein: the self-righting mechanism couples the yoke to both the front wheel frame and the rear wheel frame. 11. The pushchair frame as claimed in claim 9, wherein: the retaining means comprise a releasable locking mechanism operable to lock the yoke and the front and rear wheel frames in their respective operating positions; and the self-righting mechanism is configured to engage the releasable locking mechanism when the yoke assumes its respective front facing or rear facing operating position. 12. The pushchair frame as claimed in claim 9, wherein: the self-righting mechanism comprises one of a planetary gearbox, a mechanical cam and at least one tensionable flexible engagement member. 13. The pushchair frame as claimed in claim 9, wherein: the self-righting mechanism comprises at least one tensionable flexible engagement member in the form of a webbing strap coupled to the front wheel frame and the rear wheel frame. 14. The pushchair frame as claimed in claim 13, wherein: the self-righting mechanism further comprises a pair of webbing straps, one on each side of the yoke. 15. The pushchair frame as claimed in claim 1, wherein: the retaining means comprises at least one tensionable flexible engagement member in the form of a webbing strap coupled to the front wheel frame and the rear wheel frame. 16. The pushchair frame as claimed in claim 1, wherein: the retaining means comprises comprise a pair of webbing straps that are coupled to the front wheel frame and the rear wheel frame, the webbing straps configured to act as a self- righting mechanism operable to automatically move the yoke into its respective front facing or rear facing operating position as the front and rear wheel frames are moved from their stowed to their operating position. 17. A pushchair, comprising: a pushchair frame according to claim 1; anda collapsible seat coupled to the seat mounting yoke of the frame.
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이 특허에 인용된 특허 (10)
Baechler Philip A. ; Valdez Martin E., Baby stroller.
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