Brakes – Vehicle – Children's carriages
Reexamination Certificate
1999-08-16
2001-10-09
Oberleitner, Robert J. (Department: 3613)
Brakes
Vehicle
Children's carriages
C188S019000, C280S658000
Reexamination Certificate
active
06298949
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a brake device, by which the motion of the stroller can be precluded when the user leaves the stroller, and more particularly to a safety brake device for a stroller which is controlled by changing the position of a push handle.
BACKGROUND OF THE INVENTION
The infant strollers for carrying babies or children are known in the prior arts. Many stroller products are in the market, including foldable strollers, single seat or twin seat strollers. Whatever the stroller is, it generally includes at least three free rotating wheels for easy moving of the stroller. The user can easily push the stroller moving by the wheels. But, when the baby staying in the stroller without an attendant or being held by the parent, the stroller is easy to be moved and cause danger to the baby or child staying therein, especially when the stroller stays on a slope or is unintentionally collided by others.
A common method for solving the aforementioned problem is to provide a brake device for the wheels. The brake of prior arts has to be intentionally operated by the user so as to restrain the wheel from rotation, and has to be released from braking before moving the stroller. But, such brake device is not safe enough to preclude the motion of the stroller if the user doesn't carefully or timely operate the brake when the stroller is supposed to stop moving and free from handling by the user. Accordingly, the stroller may move unintentionally and cause danger to the baby or the child staying therein.
To overcome the defects of the aforesaid brake device, a safety brake for stroller is disclosed by U.S. Pat. No. 5,713,585. The safety brake will automatically preclude the motion of the stroller by restricting rotation of the wheels when the attendant or user leaving the stroller. The safety brake includes a brake handle movably mounted to the push handle of the stroller for being grasped during manual propulsion of the stroller, and brake assemblies mechanically coupled to the brake handle for precluding the rotation of the wheels during absence of an attendant gripping the brake handle to preclude unintentional rolling of the stroller.
But the brake handle in the aforesaid patent has to be grasped upward to release the brake which is of the opposite direction of the push handle when the stroller has to be pushed down for lifting the front wheels during moving the stroller across stairs or obstacles. The opposite manipulation makes the obstacle-crossing more difficult.
SUMMARY OF THE INVENTION
Accordingly, the primary object of the present invention is to provide a brake device for stroller which will automatically preclude the motion of the stroller when the user release the brake handle. Particularly, the brake handle is just the push handle which can be released to activate the brake when the user leaves the stroller.
The secondary object of the present invention is to provide a brake device for stroller in which the brake handle is released by being pushed downward. Therefore, it is easier to be handled when the stroller is pushed down for moving across obstacles.
To attain this, the brake device according to the present invention includes a brake handle, i.e. the push handle of the stroller, which is movably mounted to the stroller for being pushed down during manual propulsion of the stroller. A pulling wire connects to the brake handle for operating a brake assembly incorporating with the wheels. The brake handle is movable between a first and a second positions. In the first position without being handled by the user, the brake assembly precludes the rotation of the wheels. In the second position where the brake handle is pushed down by the user, the pulling wire pulls the brake assembly to release the brake and enables rotation of the wheels. When the user leaves the stroller, the brake handle retrieves to the first position, then the wheels are braked to be precluded from rotation.
REFERENCES:
patent: 353870 (1886-12-01), Luburg
patent: 422245 (1890-02-01), Hanimann
patent: 583079 (1897-05-01), Parrett et al.
patent: 716717 (1902-12-01), Jones
patent: 784443 (1905-03-01), Starbard
patent: 995480 (1911-06-01), Phalp
patent: 1709527 (1929-04-01), Ford
patent: 1861958 (1932-06-01), Gallinant
patent: 2425574 (1947-08-01), Stewack
patent: 5370408 (1994-12-01), Egan
patent: 5573 (1883-01-01), None
patent: 12233 (1892-01-01), None
patent: 767159 (1957-01-01), None
Cheng Kuang-Neng
Yang Cheng-Fan
Liauh W. Wayne
Link Treasure Ltd.
Oberleitner Robert J.
Torres Melanie
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