Runner for a drawer

Details Runner for a drawer Runner for a drawer

2002-07-08

2004-09-14

Mai, Lanna (Department: 3637)

Supports: cabinet structure

With movable components

Horizontally movable

C384S018000

Reexamination Certificate

active

06789862

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a runner for a drawer and, more particularly, to a runner which prevents a drawer from retreated abruptly in accidence.
2. Description of Related Art
It is known that there is a telescopic runner used for slidably supporting a drawer. As shown in
FIG. 8
, the runner includes an outer rail
91
, an intermediate rail
92
and an inner rail
93
, with a plurality of balls
94
intervening between the two rails
92
,
93
to provide a smooth movement of the inner rail
93
relative to the intermediate one
92
. Furthermore, the inner rail
93
is provided with a paw
95
that has a rigid toe
951
and a resiliently flexible toe
96
, and the intermediate rail
92
is provided with a stop
97
that is formed with a protrusion
971
.
In fact, the resiliently flexible toe
96
serves as a torsion spring which keeps the rigid toe
951
in such a place that the toe
951
may be correctly engaged with the protrusion
971
of the stop
97
before the inner rail
93
is fully extended out of the intermediate rail
92
. This engagement prevents the rails
92
,
93
from separating in their longitudinal direction.
However, it has been found that the resiliently flexible toe
96
usually breaks up soon, so that the drawer slidably supported on the runner may be drawn out excessively and finally falls. Moreover, the drawn-out drawer may probably retreat abruptly in accidence, bring the user into a risk of being hurt at the hand(s), especially the fingers.
OBJECT OF THE INVENTION
The object of the present invention is to provide a durable runner for slidably supporting a drawer.
Another object of the present invention is to provide a runner which prevents the drawer from retreating abruptly in accidence.
SUMMARY OF THE INVENTION
An improved runner provided for slidably supporting a drawer includes a telescopic rail assembly having a first rail and a second rail, and a retainer having a first piece fastened to the first rail and a second piece fastened to the second rail. The rails are movable one along another to allow the telescopic rail assembly to be varied between an elongated position and a shortened position. Particularly, the first piece of the retainer is adapted to releasably snap onto the second piece when the telescopic rail assembly is in the elongated position.
Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.


REFERENCES:
patent: 4537450 (1985-08-01), Baxter
patent: 4696582 (1987-09-01), Kasten
patent: 4932792 (1990-06-01), Baxter
patent: 6145944 (2000-11-01), Bayani et al.
patent: 6244678 (2001-06-01), Dopp et al.
patent: 6254209 (2001-07-01), Parvin
patent: 6280086 (2001-08-01), Stijns
patent: 6435636 (2002-08-01), MacMillan
patent: 0476745 (1992-03-01), None
patent: 07039430 (1995-02-01), None

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