Track device with separable tracks

Details Track device with separable tracks Track device with separable tracks

2001-03-22

2002-05-21

Wilkens, Janet M. (Department: 3636)

Supports: cabinet structure

With movable components

Horizontally movable

C312S333000

Reexamination Certificate

active

06390575

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a track device with separable tracks for easy assembly and detachment.
2. Description of the Related Art
FIG. 8
of the drawings illustrates a so-called “three-part” conventional track device for a drawer. The track device includes an outer track
91
, a middle track
92
, and an inner track
93
. A plurality of rolling balls
94
are mounted between the middle track
92
and the inner track
93
to allow easy sliding movement of the inner track
93
in the middle track
92
. In order to allow easy assembly, the inner track
93
has a claw
95
with a resilient leg
96
and the middle track
92
has a stop
97
. The resilient leg
96
can be pressed to allow a protrusion
951
of the claw
95
to move across a stop piece
971
of the stop
97
, thereby allowing assembly or detachment between the inner track
93
and the middle track
92
. After the inner track
93
has been engaged in the middle track
92
, the protrusion
951
of the claw
95
is engaged with the stop piece
971
of the stop
97
when the inner track
93
is pulled outward, thereby preventing disengagement of the inner track
93
from the middle track
92
. The present invention is intended to provide a different design in this regard.
SUMMARY OF THE INVENTION
It is the primary object of the present invention to provide a track device with separable tracks for easy assembly and detachment.
A track device in accordance with the present invention comprises a first track and a second track. An engaging member is mounted to an end of the first rack and includes at least one leg and at least one operative wall. The first track further includes an upper longitudinal lip and a lower longitudinal lip. The second track is slidably received in the first track and guided between the upper longitudinal lip and the lower longitudinal lip. A pressing block and a resilient member are mounted to the second track. The pressing block includes a pressing leg and a shoulder. The pressing leg presses against an end of the resilient member. The end of the resilient member includes a tappet plate. Another end of the resilient member includes a pressing portion.
The shoulder of the pressing block abuts against the leg of the first track. When the pressing portion of the resilient member is pressed, the tappet plate of the resilient member moves the leg such that the operative wall of the engaging member disengages from the shoulder of the pressing block, thereby allowing separation of the second track from the first track.


REFERENCES:
patent: 5248195 (1993-09-01), Shin
patent: 5411333 (1995-05-01), Hoffman
patent: 5577821 (1996-11-01), Chu
patent: 6238031 (2001-05-01), Weng
patent: 6257683 (2001-07-01), Yang

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