Detachable rail for a drawer track

Details Detachable rail for a drawer track Detachable rail for a drawer track

2000-03-13

2001-07-10

Cuomo, Peter M. (Department: 3636)

Supports: cabinet structure

With movable components

Horizontally movable

C312S334460

Reexamination Certificate

active

06257683

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a detachable rail for a drawer track, more particularly, to a detachable drawer rail that comprises suitable means to facilitate removing and installing the rail on a drawer track.
2. Description of Related Art
With reference to
FIGS. 7 and 8
, a conventional retaining device for a drawer track in accordance with the prior comprises a track (
60
), a rail (
70
) slidably mounted in the track (
60
) and a retaining plate (
90
) attached to the rail (
70
). The conventional track further comprises a bearing (
80
) mounted between the track (
60
) and the rail (
70
) to make the rail (
70
) slide more easily in the track (
60
).
The track (
60
) is U-shaped and has two sidewalls (
61
) with a guide (
63
) defined in each sidewall (
61
). A guide (
63
) is formed on each sidewall (
61
). A limit notch (
66
) is formed on one end of the track (
60
), and a limit plate (
64
) extends perpendicular to the track (
60
) on the other end. The track (
60
) has multiple holes (
65
) defined in the bottom to allow the track (
60
) to be attached to a piece of furniture (not shown) by a screw (not shown) or a rivet (not shown).
The rail (
70
) is U-shaped and has two wings (
72
) with a sliding groove (
74
) defined in each wing (
72
). The sliding grooves (
74
) correspond to and align with the guides (
63
) in the track (
60
). The rail (
70
) has multiple holes (
76
) defined in the bottom to allow the rail (
70
) to be attached to a drawer (not shown).
The bearing (
80
) is U-shaped and has two sets of races (
82
) each received between the guide (
63
) in the track (
60
) and the sliding groove (
74
) in the rail (
70
). Multiple cavities (
84
) are defined in each of the races (
82
) to hold ball bearings (
85
) and allow the rail (
70
) to slide more easily in the track (
60
).
The retaining plate (
90
) is flexible. The first end (
91
) of the retaining plate (
90
) nearest to the limit plate (
64
) is attached to the track (
60
), and a lever (
93
) is formed on the second end (
92
). A square hole (
94
) is defined in the lever (
93
) to receive the limit notch (
66
) and lock the rail (
70
) with the track (
70
) in a fixed position. The lever (
93
) must be pressed to release the square hole (
94
) from the limit notch (
66
) so the drawer and the rail (
70
) can be pushed back or be drawn out completely and removed.
The conventional retaining device for a detachable drawer track keeps a drawer from inadvertently sliding completely out, yet allows the drawer to be removed when desired. However, it still has several disadvantages.
1. It presents a safety hazard. Whatever a user wants to push the drawer back or detach the drawer, he must press the lever (
93
) of the retaining plate (
90
). However, the retaining plate (
90
) always is a thin metal plate and formed by molding so the edge is very rough and sharp like a knife. Consequently, if a user is careless when pressing the retaining plate (
90
), his fingers are easily injured.
2. It is not very convenient. The conventional retaining device track (
60
) only has a limit notch (
66
) formed on one end. Consequently, the drawer often rebounds and extends again for some reason after being pushed in. It is not very convenient and sometimes a user may bump or hit the extended drawer.
The present invention has arisen to mitigate and/or obviate the disadvantages of the conventional retaining device for a detachable drawer track.
SUMMARY OF THE INVENTION
In accordance with one aspect of the present invention, a detachable rail for a drawer track is provided. The detachable rail for a drawer track in accordance with the present invention essentially comprises a track and a rail. Because of the limit block fixedly mounted on the track and the limit device fixedly mounted on the rail, it is very easy to detach the rail from and attach the rail to the track of a drawer.
Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.


REFERENCES:
patent: 4993847 (1991-02-01), Hobbs
patent: 4998828 (1991-03-01), Hobbs
patent: 5002402 (1991-03-01), Parvin
patent: 5169238 (1992-12-01), Schenk
patent: 5466060 (1995-11-01), Hoffman
patent: 5577821 (1996-11-01), Chu
patent: 5722750 (1998-03-01), Chu

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