Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Handle – handle component – or handle adjunct – Length adjustable pull handle for luggage or luggage cart
Reexamination Certificate
1999-11-01
2001-05-01
Knight, Anthony (Department: 3626)
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Handle, handle component, or handle adjunct
Length adjustable pull handle for luggage or luggage cart
C016S405000, C280S655000
Reexamination Certificate
active
06223392
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a retractable handle assembly. More particularly, the present invention relates to a retractable handle assembly for a suitcase.
A conventional handle device of a suitcase can be extended or retracted according to the operation of the user. The conventional handle device is inserted in the suitcase. However, a retractable mechanism of the conventional handle device may be broken easily. U.S. Pat. No. 5,500,981 has disclosed a handle device of a suitcase.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a retractable handle assembly which can be operated easily.
Another object of the present invention is to provide a retractable handle assembly which will not be broken after a long period of usage.
Accordingly, a retractable handle assembly comprises
a grip device, a button, a U-shaped rod, a hollow driven rod, an inner pipe, an outer pipe, a seat, and a positioning mechanism. The seat has two sleeves and two oblong holes. The button encloses a center portion of the U-shaped rod. The grip device has a first grip casing and a second grip casing engaging with the first grip casing. The first grip casing has an upper recess, two lower grooves, and a hollow interior receiving the button, a coiled spring, and the U-shaped rod. The coiled spring is disposed on a bottom of the button. The second grip casing has an upper groove and two circular holes. The U-shaped rod has two end portions. An upper end of the hollow driven rod receives the respective end portion of the U-shaped rod. A round hole is formed on an upper portion of the inner pipe. A plurality of oblong apertures are formed on the outer pipe. The hollow driven rod is inserted in the inner pipe. The inner pipe is inserted in the outer pipe. An upper end of the inner pipe is inserted in the respective lower groove of the first grip casing. The inner pipe passes through the respective oblong hole of the seat. An upper end of the outer pipe is inserted in the respective sleeve. The positioning mechanism is disposed on a bottom of the inner pipe. The positioning mechanism has a mount, a lateral plate engaging with the mount, a hollow brake block, and a positioning block. The mount has a guide groove and a positioning groove. The hollow brake block has a bevel groove. The positioning block has two posts. The hollow brake block is inserted in the guide groove of the mount. A compression spring is disposed on a bottom of the hollow brake block. The positioning block is inserted in the positioning groove of the mount. The posts are inserted in the bevel groove of the hollow brake block. When the button is released, the coiled spring forces the button to move upward and the compression spring forces the hollow brake block to move upward. The positioning block is inserted in one of the oblong apertures of the outer pipe. When the button is pressed downward, the hollow driven rod drives the hollow brake block to move downward. The posts move upward along the bevel groove of the hollow brake block so that the positioning block will disengage from the respective oblong aperture of the outer pipe.
REFERENCES:
patent: 5488756 (1996-02-01), Hsieh
patent: 5628088 (1997-05-01), Chen
patent: 5636410 (1997-06-01), Shou
patent: 5692266 (1997-12-01), Tsai
patent: 5704725 (1998-01-01), Horing
patent: 6128806 (2000-10-01), Sou-Mao
patent: 6141828 (2000-11-01), Kuo
patent: 6148477 (2000-11-01), Cheng
Knight Anthony
Williams Mark
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