Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Casters – Leg elevators
Reexamination Certificate
1999-11-29
2001-09-18
Knight, Anthony (Department: 3626)
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Casters
Leg elevators
C016S01800R, C190S01800A, C190S115000, C280S037000
Reexamination Certificate
active
06289554
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a wheel device, and more particularly to a retractable wheel device for a suitcase.
2. Description of the Prior Art
Typical suitcases comprise one or more wheels that may be retracted and extended outward of the suitcase. However, the wheel devices comprise a complicated structure and may not be easily operated.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional retractable wheels for suitcases.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a retractable wheel device for a suitcase including a simplified structure for allowing the wheel device to be easily manufactured and operated.
In accordance with one aspect of the invention, there is provided a wheel device for an object, the object including a housing secured therein and a handle slidably engaged therein, the wheel device comprises a casing secured to the housing of the object, the casing including at least one oblong hole formed therein and having two ends, a rod slidably received in the oblong hole of the casing and slidable between the ends of the oblong hole of the casing, a bracket pivotally secured to the casing at a pivot shaft, a wheel rotatably secured to the bracket and movable outward of the casing when the bracket is rotated relative to the casing about the pivot shaft, a link pivotally coupling the bracket to the rod, and means for moving the rod along the oblongs hole of the casing. The bracket is moved outward of the casing about the pivot shaft when the rod is moved to a first end of the ends of the oblong hole of the casing, and the bracket is moved inward of the casing when the rod is moved to a second end of the ends of the oblong hole of the casing.
The casing includes a first end, the bracket includes a first end pivotally secured to the first end of the casing at the pivot shaft, the bracket includes a second end having the wheel rotatably secured thereto and includes a middle portion, the link includes a first end pivotally coupled to the middle portion of the bracket and a second end coupled to the rod.
The casing includes a space formed therein for receiving the bracket and the wheel. The casing includes at least one flange extended therefrom and having the oblong hole formed therein for slidably receiving the rod. The casing includes an enlarged aperture formed therein and communicating with the oblong hole of the casing for receiving the rod.
The moving means includes a lever pivotally secured to the casing and engaged with the rod for moving the rod along the oblong hole of the casing. The lever includes a middle portion pivotally secured to the casing at a pivot pin, and includes a pulley rotatably secured to a first end thereof and engaged with the rod, and includes a second end having a hand grip provided thereon for actuating the pulley to move the rod along the oblong hole of the casing, the handle of the suitcase being provided for actuating the hand grip of the levers to move the rod along the oblong hole of the casing. A spring means is further provided for biasing the rod against the pivotally of the lever.
REFERENCES:
patent: 2853732 (1958-09-01), Matter
patent: 4588203 (1986-05-01), Anderson
patent: 4748715 (1988-06-01), Rice
patent: 5533231 (1996-07-01), Bai
patent: 5813503 (1998-09-01), Chang
Baxley Charles E.
Knight Anthony
Williams Mark
LandOfFree
Retractable wheel device for suitcase does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Retractable wheel device for suitcase, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Retractable wheel device for suitcase will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2435245