Track device for drawers

Details Track device for drawers Track device for drawers

2003-03-06

2004-11-30

Cuomo, Peter M. (Department: 3636)

Supports: cabinet structure

With movable components

Horizontally movable

C312S334440, C312S330100, C312S334100, C312S333000

Reexamination Certificate

active

06824233

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a track device for drawers allowing pulling movements in two directions.
2. Description of Related Art
FIG. 1
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
. Such a track device can be used with drawers allowing pulling movement in a single direction, yet not applicable to drawers allowing pulling movements in two directions.
OBJECTS OF THE INVENTION
An object of the present invention is to provide a track device for drawers allowing pulling movements in two directions, wherein the drawer is retained in place by the track device when the drawers is pulled outward in either direction.
Another object of the present invention is to provide a track device for drawers allowing pulling movements in two directions, wherein the drawer is prevented from being disengaged while it is pulled outward in either direction.
SUMMARY OF THE INVENTION
To achieve the aforementioned objects, the present invention provides a track device comprising a first track and a second track. The first track includes a pair of guide walls. A limiting member is mounted to each of two ends of the first track. Each limiting member of the first track has two lateral walls and a groove between the lateral walls. Each limiting member of the first track further has a resilient hook extending into the groove of the limiting member. At least one positioning member is mounted to the first track and includes a resilient hook on a side thereof.
The second track is slidably received between the guide walls of the first track. The second track includes a limiting member on each of two ends thereof. Each limiting member of the second track includes two lateral walls one of which has a non-planar inclined face for selectively sliding across and engaging with the resilient hook of the positioning member of the first track and the resilient hook of a respective limiting member of the first track.
Other objects, advantages and novel features of this invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.


REFERENCES:
patent: 4370007 (1983-01-01), Fler
patent: 5722750 (1998-03-01), Chu
patent: 5868479 (1999-02-01), Hoffman
patent: 6126255 (2000-10-01), Yang
patent: 6220683 (2001-04-01), Chu
patent: 6390575 (2002-05-01), Chen et al.
patent: 6450600 (2002-09-01), Chen et al.
patent: 6601933 (2003-08-01), Greenwald
patent: 2002/0140331 (2002-10-01), Chen et al.
patent: 2003/0178922 (2003-09-01), Chen et al.

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