US 6,386,660 B1Granted

Detachable rail for drawers

OwnerJun-Long Yanginventor

Life of this patent

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Abstract

A detachable rail for drawers consists of a track (10) with two blocking elements to limit the movement of the drawer move within the track (10), a bearing race (20) with multiple ball bearings (22), a rail (30) with an attachment device and a latch (40). The structure of the latch (40) and the attachment device of the rails (60) make the removal and re-installation of the drawer easy.

Claims4

Dependent claims

A detachable rail for drawers comprising:

a track (10) adapted to be secured on furniture to retract a drawer inside and the track (10) having
two guides (11) each formed on two sidewalls of the track (10) respectively;
a limit tab (12) and a limit block (13) respectively secured on two ends of the track (10) so as to enclose and limit the movement of the drawer on the track (10);
a bearing race (20) movably secured on inner faces of the track (10) and having
multiple ball bearings (21) arranged on the bearing race (20) and partly received in the guide (11) of the track (10) to allow the bearing race (20) to move;
and
an elevated plate (22) formed in a middle section of the bearing race (20);
a rail (30) adapted to be attached to a drawer or similar fixture to correspond to the track (10) and having
two flanges formed on two long sides of the rail (30) to hold the ball bearings (21) of the bearing race (20) to allow the rail (30) to move along the guide (11) in the track (10);
an attachment device mounted on the rail (30);
and
an opening (33) defined in the rail (30), and
a resilient latch (40) attached to the rail (30) by the attachment device;
wherein the improvements comprise:
the limit block (13) having
two locking protrusions (131) each formed vertically on opposite sides of the limit block (13) respectively, and each locking protrusion (131) has two ends, one end is a flat end to block the wing (44) of the latch (40) and the other end is an inclined end to guide the rail (30) smoothly into the track (10);
and
a locking clamp (132) formed on one end of the limit block (13) to be inserted between the elevated plate (22) and the track (10);
the resilient latch (40) having
a fork (41) formed at one end of the latch (40) to clamp the attachment device;
an inclined surface (42) formed at the other end of the latch (40) and having a nub (43) under the inclined surface (42) to be secured by the attachment device;
and
two wings (44) protruded laterally from two sides of the inclined surface (42) to contact the limit block (13),
wherein a gap (A) is defined between the resilient latch (40) and the rail (30) to allow the movement of the resilient latch (40), so as that the drawer is easily separated from the furniture when the resilient latch (40) is mounted on the rail (30).

21 more elements

Dependencies are inferred from the claim text.

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Abstract

A detachable rail for drawers comprising:

a track (10) adapted to be secured on furniture to retract a drawer inside and the track (10) having
two guides (11) each formed on two sidewalls of the track (10) respectively;
a limit tab (12) and a limit block (13) respectively secured on two ends of the track (10) so as to enclose and limit the movement of the drawer on the track (10);
a bearing race (20) movably secured on inner faces of the track (10) and having
multiple ball bearings (21) arranged on the bearing race (20) and partly received in the guide (11) of the track (10) to allow the bearing race (20) to move;
and
an elevated plate (22) formed in a middle section of the bearing race (20);
a rail (30) adapted to be attached to a drawer or similar fixture to correspond to the track (10) and having
two flanges formed on two long sides of the rail (30) to hold the ball bearings (21) of the bearing race (20) to allow the rail (30) to move along the guide (11) in the track (10);
an attachment device mounted on the rail (30);
and
an opening (33) defined in the rail (30), and
a resilient latch (40) attached to the rail (30) by the attachment device;
wherein the improvements comprise:
the limit block (13) having
two locking protrusions (131) each formed vertically on opposite sides of the limit block (13) respectively, and each locking protrusion (131) has two ends, one end is a flat end to block the wing (44) of the latch (40) and the other end is an inclined end to guide the rail (30) smoothly into the track (10);
and
a locking clamp (132) formed on one end of the limit block (13) to be inserted between the elevated plate (22) and the track (10);
the resilient latch (40) having
a fork (41) formed at one end of the latch (40) to clamp the attachment device;
an inclined surface (42) formed at the other end of the latch (40) and having a nub (43) under the inclined surface (42) to be secured by the attachment device;
and
two wings (44) protruded laterally from two sides of the inclined surface (42) to contact the limit block (13),
wherein a gap (A) is defined between the resilient latch (40) and the rail (30) to allow the movement of the resilient latch (40), so as that the drawer is easily separated from the furniture when the resilient latch (40) is mounted on the rail (30).

21 more elements