Land vehicles – Wheeled – Extensible
Reexamination Certificate
2000-05-23
2001-11-06
Mar, Michael (Department: 3619)
Land vehicles
Wheeled
Extensible
C280S642000, C280S650000, C280S062000, C016S900000, C016S429000, C016S405000, C403S093000
Reexamination Certificate
active
06312005
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a stroller with three wheels.
2. Description of the Related Art
A conventional stroller having three wheels in accordance with the prior art comprises two front support stands, two rear support stands attached to the front support stands, a substantially U-shaped push handle mounted between the front support stands and the rear support stands, a front wheel rotatably mounted on the lower end of each of the two front support stands, two crossbars mounted between the two front support stands and the two rear support stands, two rear wheel support bars each mounted on each of the two rear support stands, and two rear wheels each rotatably mounted on the lower end of each of the two rear wheel support bars.
However, it is not easy to fold the frame of the stroller, thereby causing inconvenience to the user when folding the stroller. In addition, the stroller cannot provide a shock absorbing function so that the baby placed in the stroller easily feels uncomfortable when the stroller is moved on a rugged road, thereby decreasing the versatility of the stroller.
SUMMARY OF THE INVENTION
In accordance with one aspect of the present invention, there is provided a stroller with three wheels comprising: a support frame including two front support stands, two rear support stands, and a substantially U-shaped push handle having two lower ends each provided with a connecting rod; and a linking device mounted between the two front support stands, the two rear support stands, and the push handle.
The linking device includes a support base secured on each of the two front support stands, and defining a first chamber for receiving an upper end of each of the two front support stands, a second chamber provided with a saddle, and a third chamber for receiving the lower end of the push handle; a pivot member extending through a hole defined in the support base and through the connecting rod of the push handle so that the connecting rod of the push handle is pivoted on the support base; a first locking member pivotally received in the second chamber and having a first end secured on an upper end of each of the two rear support stands so that each of the two rear support stands is pivoted with the first locking member, and a second end secured on the lower end of the push handle, a locking recess defined in a top portion of the first locking member; and a second locking member movably mounted on the push handle and including a block extending outward. The block has a lower end provided with a locking head detachably received in the locking recess of the first locking member.
Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.
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Mar Michael
Restifo Jeff J.
LandOfFree
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