U.S. patent application number 11/952014 was filed with the patent office on 2009-03-26 for drawer sliding assembly.
This patent application is currently assigned to RK RESOURCES., LTD.. Invention is credited to Chin-Chia Lu.
Application Number | 20090079314 11/952014 |
Document ID | / |
Family ID | 39612842 |
Filed Date | 2009-03-26 |
United States Patent
Application |
20090079314 |
Kind Code |
A1 |
Lu; Chin-Chia |
March 26, 2009 |
DRAWER SLIDING ASSEMBLY
Abstract
A drawer sliding assembly mounted between a drawer and furniture
has a plastic rail and at least two guides being plastic. The rail
is elongated and has a neck and a head wider than the neck. The
guides are shorter than the drawer and are securely mounted
separately on a bottom surface of the drawer along a longitudinal
axis. Each guide has a guiding groove formed therethrough and
slidably holds the head of the rail. Accordingly, with such an
arrangement, the drawer sliding assembly in accordance with present
invention is quiet and smoothly and is cheaper to manufacture by
saving materials.
Inventors: |
Lu; Chin-Chia; (Wandon
Hsiang, TW) |
Correspondence
Address: |
PATENTTM.US
P. O. BOX 82788
PORTLAND
OR
97282-0788
US
|
Assignee: |
RK RESOURCES., LTD.
Ben Cat Dist
VN
|
Family ID: |
39612842 |
Appl. No.: |
11/952014 |
Filed: |
December 6, 2007 |
Current U.S.
Class: |
312/334.44 ;
312/334.1 |
Current CPC
Class: |
A47B 88/477 20170101;
A47B 88/40 20170101; A47B 2210/0056 20130101; A47B 2210/0005
20130101 |
Class at
Publication: |
312/334.44 ;
312/334.1 |
International
Class: |
A47B 88/04 20060101
A47B088/04 |
Foreign Application Data
Date |
Code |
Application Number |
Sep 21, 2007 |
CN |
200720176855.5 |
Claims
1. A drawer sliding assembly comprising a rail being plastic and
elongated and having a neck; and a head being wider than the neck
in cross section, quadrangular and having two sides, and a front
guide being plastic and having a front guiding groove being formed
longitudinally through the front guide, being larger than and
slidably holding the head of the rail; and a rear guide being
plastic, being separate from the front guide and having a rear
guiding groove being formed longitudinally through the rear guide,
corresponding to and aligning with the front guiding groove of the
front guide and slidably holding the rail.
2. The drawer sliding assembly as claimed in claim 1, wherein the
rail is hollow and has multiple supports separately formed
transversely inside the rail to strengthen the rail's
structure.
3. The drawer sliding assembly as claimed in claim 1, wherein the
front guiding groove of the front guide further has a rear end
being wider than the front guiding groove to facilitate mounting of
the rail therethrough.
4. The drawer sliding assembly as claimed in claim 1, wherein the
rear guide further has a bottom and a stop being mounted securely
beside the rear guide and protruding past the bottom of the rear
guide.
5. The drawer sliding assembly as claimed in claim 1, wherein the
rail further has two ends and two rail mounts being formed
respectively in the ends of the rail.
6. The drawer sliding assembly as claimed in claim 1, wherein the
head of the rail is substantially trapezium shaped in cross section
and further has two sides and two rounded outer corners ; and the
front and rear guiding grooves are substantially trapezium shaped
and have two inner corners.
7. The drawer sliding assembly as claimed in claim 6, wherein the
inner corners of the front and rear guiding grooves are rounded to
correspond to the head of the rail.
8. The drawer sliding assembly as claimed in claim 1, wherein the
rail is substantially rectangular in cross section and further has
two guide rails being respectively formed on and protruding
transversely from the sides of the head; and the front and rear
guiding grooves are substantially rectangular in cross section and
each guiding groove further has two side surfaces and two guide
channels being respectively formed centrally in the side surfaces
of the guiding grooves, corresponding to and engaging the guide
rails of the head of the rail.
9. The drawer sliding assembly as claimed in claim 6, wherein the
head further comprises two guide rails respectively formed on and
protruding transversely from the sides of the head at the corners;
and the front and rear guiding grooves further have two side
surfaces and two guide channels being respectively formed at the
corners of in the side surfaces of the guiding grooves,
corresponding to and engaging the guide rails of the head of the
rail.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a drawer sliding assembly,
and more particularly to a drawer sliding assembly that allows a
drawer to be mounted slidably in furniture and smoothly operated
whilst saving material.
[0003] 2. Description of Related Art
[0004] Drawers are mounted in variety of furniture for people
putting articles therein. Generally, drawers are able to slide
using at least one assembly.
[0005] With reference to FIGS. 9, 10 and 11, a conventional sliding
assembly comprises a guide and a rail being substantially wooden.
The guide is mounted securely on a bottom surface of a drawer, is
elongated and has a guiding groove formed longitudinally
therethrough. The guiding groove is a trapezium in cross section
and has a longitudinal opening and a longitudinal surface. The
longitudinal surface is wider than the opening. The rail is
securely mounted on a surface adjacent to the bottom surface of the
drawer and has a head corresponding to and engaging the guiding
groove of the guide. When the drawer is pulled, the guide allows
the drawer to slide along an entirety of the rail and ensure the
drawer moves longitudinally due to engagement between the guiding
groove and the rail.
[0006] Being made of wood, however, the guide and the rail may
generate annoying noise and be awkwardly moved because of a
friction incurred therebetween. Moreover, the guide and the rail
require skill of manufacture to produce and use much wood, this
increases difficulties to manufacture the drawer sliding assembly
and increase costs and material wastage.
[0007] To overcome the shortcomings, the present invention provides
a drawer sliding assembly for a portable electronic device to
obviate or mitigate the aforementioned problems.
SUMMARY OF THE INVENTION
[0008] The main objective of the present invention is to provide a
drawer sliding assembly that allows a drawer to be mounted slidably
in furniture and smoothly operated whilst saving material.
[0009] To achieve the objective, the drawer sliding assembly in
accordance with present invention comprises a rail and at least two
guides, which are all made of plastic.
[0010] The rail is longitudinally mounted securely on an inner
surface of the furniture.
[0011] The guides are short and securely mounted separately on a
bottom surface of a drawer being mounted in the furniture, the
guides being mounted along a longitudinal axis to perform the same
function of a guide of a conventional sliding assembly. Each guide
has a guiding groove formed therethrough and slidably holding the
head of the rail. One guiding groove may have a rear end being
wider than and communicating with the guiding groove to facilitate
the rail mounting therein.
[0012] Accordingly, with such an arrangement, the drawer sliding
assembly in accordance with present invention provides following
advantages:
[0013] 1. Being plastic and having slippery surfaces, the guides
and the rail may be quiet and smooth when used.
[0014] 2. Molding processes may be used to manufacture, thus
manufacturing is more convenient and use less material.
[0015] 3. Saving material and reduces cost due to smaller than
conventional design.
[0016] Other objectives, advantages and novel features of the
invention will become more apparent from the following detailed
description when taken in conjunction with the accompanying
drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0017] FIG. 1 is an exploded perspective view of a drawer sliding
assembly in accordance with the present invention mounted between a
drawer and furniture;
[0018] FIG. 2 is a side view in partial section of the drawer
sliding assembly in FIG. 1;
[0019] FIG. 3 is an operational side view in partial section of the
drawer sliding assembly in FIG. 1;
[0020] FIG. 4 is a front view of the drawer sliding assembly in
FIG. 1, partially shown in phantom lines;
[0021] FIGS. 5 to 8 are front views various cross sections of the
drawer sliding assembly in accordance with present invention;
[0022] FIG. 9 is a partially exploded perspective view of a drawer
sliding assembly in accordance with prior art, shown mounted in a
cabinet;
[0023] FIG. 10 is a side view in partial section of the drawer
sliding assembly in FIG. 9; and
[0024] FIG. 11 is a front view of the drawer sliding assembly in
FIG. 9.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0025] With reference to FIG. 1, a drawer (40) is mounted in
furniture (50) having and inner surface and the drawer has a front
end (42), a bottom surface (41) and a rear end (43).
[0026] A sliding assembly in accordance with the present invention
is mounted between the drawer (40) and the furniture (50) and
comprises a rail (30) and multiple guides (10, 20).
[0027] With further reference to FIGS. 5 to 8, the rail (30) is
plastic and elongated, is mounted securely on the inner surface of
the furniture (50) adjacent to the bottom surface (41) of the
drawer (40) and has two ends, two rail mounts (31), a neck and a
head, and may be hollow to save material and have multiple supports
(32) separately formed transversely inside the rail (30) to
strengthen the rail's (30) structure.
[0028] The head is wider than the neck and is quadrangular, with
reference to FIG. 5, in the first embodiment, the head of the rail
(30) is implemented as substantially trapezium shaped.
[0029] With reference to FIG. 6, in the second embodiment, the head
of the rail (30a) is substantially trapezium shaped and has two
sides and two rounded outer corners.
[0030] With reference to FIG. 7, in the third embodiment, the head
of the rail (30b) is substantially rectangular shaped and further
has two guide rails (33b). The guide rails (33b) are respectively
formed on and protrude transversely from the sides of the head of
the rail (30b).
[0031] With reference to FIG. 8, in the fourth embodiment, the head
of the rail (30c) is substantially trapezium shaped and has two
corners and two guide rails (33c). The guide rails (33c) are
respectively formed on and protrude transversely from the sides of
the head at the corners.
[0032] The rail mounts (31) are formed respectively in the ends of
the rail (30) to mount the rail (30) securely onto the inner
surface of the furniture (50).
[0033] With further reference to FIGS. 2 and 4, the multiple guides
comprise a rear guide (20) and at least one front guide (10) are
shorter than and securely mounted separately on the bottom surface
(41) of the drawer (40) at a position corresponding to the rail
(30).
[0034] The rear guide (20) has a bottom, a rear guiding groove
(21), an optional stop (22), a front end, a rear end (23) and an
optional mounting tab (24). The rear guiding groove (21) is formed
longitudinally through the rear guide (20), with reference to FIG.
5, in the first embodiment, the rear guiding groove (21) is
substantially trapezium shaped in cross section and is larger than
and slidably holds head of the rail (30).
[0035] With reference to FIG. 6, in the second embodiment, the rear
guiding groove (21a) is substantially trapezium shaped in cross
section and has two inner corners that are rounded to correspond to
the head of the rail (30a).
[0036] With reference to FIG. 7, in the third embodiment, the rear
guiding groove (21b) is implemented as a rectangle and further has
two guide channels (210b) respectively formed centrally in the
sides of the rear guiding groove (21b) correspond to and are
mounted respectively around the guide rails (33b) of the rail
(30b).
[0037] With reference to FIG. 8, in the fourth embodiment, the rear
guiding groove (21c) is substantially trapezium shaped and further
has two corners and two guide channels (210c) formed in the corners
of the rear guiding groove (21c) correspond to and are mounted
respectively around the guide rails (33c) of the rail (30c).
[0038] The stop (22) is mounted securely-beside the rear guide (20)
and protrudes past the bottom of the rear guide (20) to abut
against an edge of the furniture (50) and prevent the drawer (40)
from being detached from the furniture (50). The mounting tab (24)
has two ends respectively mounted securely in the rear end (23) of
the rear guide (20) and the rear end (43) of the drawer (40),
thereby to fasten the rear guide (20) to the drawer (40).
[0039] Each front guide (10) has a front guiding groove (11). The
front guiding groove (11) is formed longitudinally through the
front guide (10) aligns with and corresponds to the rear guiding
groove (21), may be formed in different shapes in cross section
corresponding to the rear guiding groove (21) and slidably holds
the head of the rail (30), has two sides and a rear end. The rear
end of the front guiding groove (11) is wider than and communicates
with the front guiding groove (11) to facilitate mounting of the
rail (30) therethrough.
[0040] With further reference to FIG. 3, when the drawer (40) is
pulled, the guides allow the drawer (40) to slide along the rail
(30)(30a)(30b)(30c) and ensure the drawer (40) moves longitudinally
due to engagement between the guiding grooves (11)(21)
(21a)(21b)(21c) and the head of the rail (30)(30a)(30b)(30c).
[0041] Even though numerous characteristics and advantages of the
present invention have been set forth in the foregoing description
together with details of the structure and function of the
invention, the disclosure is illustrative only. Changes may be made
in detail especially in matters of shape, size and arrangement of
parts within the principles of the invention to the full extent
indicated by the broad general meaning of the terms in which the
appended claims are expressed.
* * * * *