U.S. patent application number 11/649550 was filed with the patent office on 2008-07-03 for adjustable rack device.
This patent application is currently assigned to Yih Shyh Enterprise Co., Ltd.. Invention is credited to Jung-Tai Lai.
Application Number | 20080156759 11/649550 |
Document ID | / |
Family ID | 39582385 |
Filed Date | 2008-07-03 |
United States Patent
Application |
20080156759 |
Kind Code |
A1 |
Lai; Jung-Tai |
July 3, 2008 |
Adjustable rack device
Abstract
An adjustable rack device includes four base leg members, a base
frame engaged onto the base leg members for coupling the base leg
members together, four tubular members engaged onto the base leg
members and engaged onto the base frame for forming a two-layer
structure, a shelf device includes a peripheral frame member and
four corner barrels for engaging onto the tubular members, and a
table plate may be engaged in the peripheral frame member of the
first shelf device. One or more further shelf devices may further
be attached onto the barrels for supporting the other table
plates.
Inventors: |
Lai; Jung-Tai; (Changhua
Hsien, TW) |
Correspondence
Address: |
CHARLES E. BAXLEY, ESQ.
90 JOHN STREET, THIRD FLOOR
NEW YORK
NY
10038
US
|
Assignee: |
Yih Shyh Enterprise Co.,
Ltd.
|
Family ID: |
39582385 |
Appl. No.: |
11/649550 |
Filed: |
January 3, 2007 |
Current U.S.
Class: |
211/187 |
Current CPC
Class: |
A47B 87/0207 20130101;
A47B 47/0083 20130101 |
Class at
Publication: |
211/187 |
International
Class: |
A47B 57/06 20060101
A47B057/06 |
Claims
1. An adjustable rack device comprising: four base leg members, a
base frame engaged onto said base leg members for coupling said
base leg members together, four tubular members engaged onto said
base leg members respectively and engaged onto said base frame for
forming a two-layer structure, a first shelf device including a
peripheral frame member and four barrels provided at four corner
areas of said peripheral frame member for engaging onto said
tubular members, and a table plate engaged in said peripheral frame
member of said first shelf device.
2. The adjustable rack device as claimed in claim 1, wherein said
first shelf device includes four pegs attached to said barrels for
engaging with and for supporting said table plate.
3. The adjustable rack device as claimed in claim 2, wherein said
first shelf device includes at least one cushioning ring attached
to each of said pegs for engaging with said table plate.
4. The adjustable rack device as claimed in claim 1, wherein said
first shelf device includes a stop extended into each of said
barrels for engaging with said tubular members and for allowing
said tubular members to be partially engaged into said barrels.
5. The adjustable rack device as claimed in claim 1, wherein said
first shelf device includes a head member attached to each of said
base leg members and partially engaged into said barrels.
6. The adjustable rack device as claimed in claim 1, wherein said
base leg members each include a stud provided thereon and having an
outer diameter greater than that of said base leg members for
forming a peripheral shoulder in each of said base leg members and
for engaging with said barrels.
7. The adjustable rack device as claimed in claim 6 further
comprising four foot stands detachably attached to said studs of
said base leg members.
8. The adjustable rack device as claimed in claim 6 further
comprising four wheel devices detachably attached to said studs of
said base leg members.
9. The adjustable rack device as claimed in claim 1 further
comprising four posts detachably attached to said base leg members
respectively, and four spacers engaged onto said posts respectively
and engaged with said barrels of said first shelf device, and a
second shelf device engaged on said posts and said spacers.
10. The adjustable rack device as claimed in claim 9, wherein said
spacers are partially engaged into said barrels of said first shelf
device.
11. The adjustable rack device as claimed in claim 9, wherein said
second shelf device includes a peripheral frame member and four
barrels provided at four corner areas of said peripheral frame
member for engaging onto said spacers.
12. The adjustable rack device as claimed in claim 11, wherein said
spacers are partially engaged into said barrels of said second
shelf device.
13. The adjustable rack device as claimed in claim 11, wherein said
second shelf device includes four pegs attached to said barrels of
said second shelf device for engaging with and for supporting a
second table plate.
14. The adjustable rack device as claimed in claim 13, wherein said
second shelf device includes at least one cushioning ring attached
to each of said pegs for engaging with said second table plate.
15. The adjustable rack device as claimed in claim 11, wherein said
second shelf device includes a stop extended into each of said
barrels for engaging with said spacers and for allowing said
spacers to be partially engaged into said barrels of said second
shelf device.
16. The adjustable rack device as claimed in claim 11, wherein said
second shelf device includes a head member attached to each of said
posts and partially engaged into said barrels of said second shelf
device.
17. The adjustable rack device as claimed in claim 11, wherein said
second shelf device includes at least one handle for handling said
adjustable rack device.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a rack device, and more
particularly to an adjustable rack device including a structure
adjustable to different heights or selectively assembled to
different heights according to the users' need and including a
solid or stable structure.
[0003] 2. Description of the Prior Art
[0004] Typical adjustable rack devices or shelf frames comprise
four leg devices, and a number of rectangular plates or shelves
detachably attached or supported on the leg devices, and one or
more connecting members and transverse rods coupled between the leg
devices for stably supporting the rectangular plates or shelves on
the leg devices.
[0005] For example, U.S. Pat. No. 5,065,873 to Tseng discloses one
of the typical shelf frames comprising four leg devices clamped
together by a number of clamping members and spaced apart from one
another in parallel relationship, and a number of connecting
members and transverse rods coupled between the leg devices for
stably supporting the rectangular plates or shelves on the leg
devices.
[0006] However, the leg devices include a longitudinal structure
having a great length that may not be stored or folded to a compact
folding structure and that is adverse for storing and
transportation purposes.
[0007] U.S. Pat. No. 5,127,342 to Taylor discloses another typical
adjustable shelving comprising a number of rectangular shelves to
be detachably attached or supported on the shelf posts with a
number of shelf supports and tapered and tubular collars and snap
latches.
[0008] However, similarly, the shelf posts include a longitudinal
structure having a great length that may not be stored or folded to
a compact folding structure and that is adverse for storing and
transportation purposes.
[0009] U.S. Pat. No. 5,131,547 to Goldberg discloses a further
typical collapsible storage rack comprising a number of frame
members or leg portions foldably coupled together with intersecting
cros-braces, and number of shelf portions to be detachably attached
or supported on the leg portions or the frame members.
[0010] However, similarly, the leg portions or the frame members
also include a longitudinal structure having a great length that
may not be stored or folded to a compact folding structure and that
is adverse for storing and transportation purposes.
[0011] U.S. Pat. No. 6,695,156 to Wang discloses a still further
typical rack device comprising a number of reversible or invertible
shelves to be detachably attached or supported on the supporting
posts with a number of sleeves, and tapered and tubular
collars.
[0012] However, similarly, the supporting posts also include a
longitudinal structure having a great length that may not be stored
or folded to a compact folding structure and that is adverse for
storing and transportation purposes.
[0013] The present invention has arisen to mitigate and/or obviate
the afore-described disadvantages of the conventional adjustable
rack devices.
SUMMARY OF THE INVENTION
[0014] The primary objective of the present invention is to provide
an adjustable rack device including a structure adjustable to
different heights or selectively assembled to different heights
according to the users' need.
[0015] The other objective of the present invention is to provide
an adjustable rack device including a solid or stable structure for
allowing the rack device to be solidly or stably supported on the
erected working position and for preventing the rack device from
failing down.
[0016] In accordance with one aspect of the invention, there is
provided an adjustable rack device comprising four base leg
members, a base frame engaged onto the base leg members for
coupling the base leg members together, four tubular members
engaged onto the base leg members respectively and engaged onto the
base frame for forming a two-layer structure, a first shelf device
including a peripheral frame member and four barrels provided at
four corner areas of the peripheral frame member for engaging onto
the tubular members, and a table plate engaged in the peripheral
frame member of the first shelf device.
[0017] The first shelf device includes four pegs attached to the
barrels for engaging with and for supporting the table plate. The
first shelf device includes at least one cushioning ring attached
to each of the pegs for engaging with the table plate.
[0018] The first shelf device includes a stop extended into each of
the barrels for engaging with the tubular members and for allowing
the tubular members to be partially engaged into the barrels. The
first shelf device includes a head member attached to each of the
base leg members and partially engaged into the barrels.
[0019] The base leg members each include a stud provided thereon
and having an outer diameter greater than that of the base leg
members for forming a peripheral shoulder in each of the base leg
members and for engaging with the barrels. Four foot stands may
further be provided and detachably attached to the studs of the
base leg members. Four wheel devices may further be provided and
selectively and detachably attached to the studs of the base leg
members.
[0020] Four posts may further be provided and detachably attached
to the base leg members respectively, and four spacers engaged onto
the posts respectively and engaged with the barrels of the first
shelf device, and a second shelf device engaged on the posts and
the spacers.
[0021] The spacers are partially engaged into the barrels of the
first shelf device. The second shelf device includes a peripheral
frame member and four barrels provided at four corner areas of the
peripheral frame member for engaging onto the spacers, and the
spacers may thus be partially engaged into the barrels of the
second shelf device.
[0022] The second shelf device includes four pegs attached to the
barrels of the second shelf device for engaging with and for
supporting a second table plate. The second shelf device includes
at least one cushioning ring attached to each of the pegs for
engaging with the second table plate.
[0023] The second shelf device includes a stop extended into each
of the barrels for engaging with the spacers and for allowing the
spacers to be partially engaged into the barrels of the second
shelf device. The second shelf device includes a head member
attached to each of the posts and partially engaged into the
barrels of the second shelf device. The second shelf device
includes at least one handle for handling the adjustable rack
device.
[0024] Further objectives and advantages of the present invention
will become apparent from a careful reading of the detailed
description provided hereinbelow, with appropriate reference to the
accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0025] FIG. 1 is a perspective view of an adjustable rack device in
accordance with the present invention;
[0026] FIG. 2 is a partial perspective view of the adjustable rack
device;
[0027] FIG. 3 is a partial exploded view of the adjustable rack
device;
[0028] FIGS. 4, 5, 6 are the other partial exploded views
illustrating the assembling operation of the adjustable rack
device;
[0029] FIG. 7 is an enlarged partial perspective view of the
adjustable rack device; and
[0030] FIG. 8 is a perspective view illustrating the other
arrangement of the adjustable rack device.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0031] Referring to the drawings, and initially to FIGS. 1-6, an
adjustable rack device 1 in accordance with the present invention
comprises four base leg supports or members 10 each including an
enlarged stud 11 formed or provided on the lower portion thereof
and having an outer diameter greater than that of the base leg
members 10 for forming a peripheral shoulder 12 in each of the base
leg members 10, best shown in FIG. 4, the base leg members 10 each
further include a screw hole or inner thread 13 formed or provided
in the lower portion of the stud 11 and another screw hole or inner
thread 14 formed or provided in the upper portion of the base leg
member 10.
[0032] Four foot stands 15 each include an outer thread 16 formed
or provided on the upper portion thereof (FIG. 4) for threading or
engaging with the screw hole or inner thread 13 of the stud 11 and
for detachably attaching or securing the foot stands 15 to the
lower portions of the studs 11 or of the base leg members 10. The
foot stands 15 may be threaded or rotated relative to the lower
portions of the studs 11 or the base leg members 10 for adjusting
the studs 11 or the base leg members 10 relative to the foot stands
15 and thus for adjusting the studs 11 or the base leg members 10
to different height relative to the foot stands 15, as shown in
dotted lines in the left portion of FIG. 1.
[0033] As also shown in FIG. 1, the adjustable rack device 1 in
accordance with the present invention further includes four wheel
devices 17 selectively or changeably and detachably attached or
secured to the lower portions of the studs 11 or of the base leg
members 10 with a threading engagement 18 for selectively replacing
or substituting the foot stands 15 and for allowing the adjustable
rack device 1 to be selectively and easily moved to the other
places or positions with the wheel devices 17, or to be selectively
and stably supported on the ground or on the supporting surfaces
with the foot stands 15.
[0034] A base frame 20 includes four bars 21 arranged or disposed
in a rectangular or square or parallelogrammic structure, and four
barrels 22 formed or secured at the corner areas of the bars 21 or
the base frame 20 for engaging onto the respective base leg members
10 and for coupling the base leg members 10 together, and one or
more stops 23 (FIG. 4) extended radially into each of the barrels
22 for engaging with the studs 11 or the peripheral shoulders 12 of
the base leg members 10. It is preferable that the stops 23 are
extended radially into the middle portion of the respective barrels
22 for allowing the barrels 22 to be partially engaged onto the
studs 11 or for allowing the studs 11 to be partially engaged into
the barrels 22 and thus for allowing the barrels 22 and the base
frame 20 to be stably supported on the base leg members 10 without
being tilted or inclined relative to the base leg members 10.
[0035] The stops 23 include an inner diameter greater than that of
the studs 11 for engaging with the studs 11 or the peripheral
shoulders 12 of the base leg members 10 and thus for stably
supporting the barrels 22 and the base frame 20 on the base leg
members 10, and the stops 23 include an inner diameter smaller than
that of the base leg members 10 for allowing the base leg members
10 to be engaged through the stops 23, and thus for allowing the
barrels 22 and the base frame 20 and the base leg members 10 to be
stably coupled together.
[0036] Four fasteners or pegs 25 are threaded or attached or
secured to the inner portion of the respective barrels 22 and
extended or located within the base frame 20 for supporting a base
plate 30 in the base frame 20 or on the studs 11 of the base leg
members 10 (FIGS. 1, 8). It is preferable that the pegs 25 each
include one or more sealing rings or resilient or cushioning rings
26 (FIG. 7) disposed or engaged thereon for resiliently engaging
with the base plate 30 and for stably and safely supporting the
base plate 30 on the studs 11 of the base leg members 10 or in the
base frame 20, and thus for forming a stable base structure for the
base frame 20 and the adjustable rack device 1.
[0037] Four tubular members 27 may further be provided and engaged
onto the outer peripheral portions of the base leg members 10
respectively and each include a lower portion 28 for partially
engaging into the respective barrels 22 and thus for allowing the
tubular members 27 to be stably supported on or engaged with the
barrels 22 and the base frame 20 without being tilted or inclined
relative to the barrels 22 and the base frame 20. The base leg
members 10 and the tubular members 27 may be used or provided for
selectively and adjustably supporting one or more further shelf
devices 40 thereon.
[0038] The further shelf devices 40 each include a peripheral frame
member 41, and four barrels 42 formed or secured at the corner
areas of the peripheral frame member 41, and one or more stops 43
(FIGS. 3, 6) extended radially into each of the barrels 42 for
engaging with the tubular members 27 and for allowing the tubular
members 27 to be partially engaged into the respective barrels 42
and thus for allowing the tubular members 27 and the barrels 42 of
the shelf devices 40 to be stably coupled together without being
tilted or inclined relative to each other.
[0039] Four fasteners or pegs 45 are further threaded or attached
or secured to the inner portion of the respective barrels 42 and
extended or located within the peripheral frame member 41 for
engaging with and for supporting a table plate 44 in the peripheral
frame member 41 or on the barrels 42. It is preferable that the
pegs 45 each include one or more sealing rings or resilient or
cushioning rings 46 (FIGS. 1, 3, 6, 8) disposed or engaged thereon
for resiliently engaging with the table plate 44 and for stably and
safely supporting the table plate 44 on the barrels 42 or in the
peripheral frame member 41, and thus for forming a stable middle
and/or upper structure for the adjustable rack device 1.
[0040] Four posts 50 may further be provided and each include an
outer thread 51 formed or provided on the lower portion thereof
(FIGS. 3, 6) for threading or engaging with the screw hole or inner
thread 14 of the base leg members 10 and for detachably attaching
or securing the posts 50 to the upper portions of the base leg
members 10. The posts 50 each include a screw hole or inner thread
52 formed or provided in the upper portion thereof (FIG. 6) or an
outer thread 53 formed or provided on the upper portion thereof
(FIG. 3) for threading or engaging with or attaching a decorative
head member 54. The decorative head members 54 may also be
selectively attached or threaded or secured to the upper portion of
the base leg members 10.
[0041] Four further tubular members or spacers 55 may further be
provided and engaged onto the outer peripheral portions of the
posts 50 respectively and each include a lower portion 56 for
partially engaging into the respective barrels 42 of the middle
shelf device 40 and thus for allowing the spacers 55 to be stably
supported on or engaged with the barrels 42 of the middle shelf
device 40 without being tilted or inclined relative to the barrels
42 and the middle shelf device 40. The posts 50 and the spacers 55
may further be used or provided for selectively and adjustably
supporting one or more further or upper shelf devices 40 thereon,
i.e., the further or upper shelf devices 40 may further be provided
and engaged onto the upper portion 57 of the spacers 55. The
decorative head members 54 may also be partially engaged into the
barrels 42 of the middle or the upper shelf devices 40. One or more
handles 58 may be selectively attached to the upper shelf device 40
for handling or moving the adjustable rack device 1.
[0042] As shown in FIG. 8, the adjustable rack device 1 in
accordance with the present invention may further include four or
more spacers 55 disposed or engaged between the tubular members 27
and the shelf device 40 for increasing the heights or the layers of
the adjustable rack device 1 and for allowing the adjustable rack
device 1 to be selectively and easily adjusted to different heights
or to be selectively assembled to different heights according to
the users' need.
[0043] It is to be noted that the provision and the engagement of
the tubular members 27 onto the outer peripheral portions of the
base leg members 10 respectively and the spacers 55 onto the outer
peripheral portions of the posts 50 may form a stable two-layer
structure to the adjustable rack device 1. In addition, the
engagement of the tubular members 27 and the spacers 55 into the
barrels 22, 42 of the base frame 20 and the shelf devices 40 may
form a further stable structure to the adjustable rack device 1
without being tilted or inclined relative to each other.
[0044] Accordingly, the adjustable rack device in accordance with
the present invention includes a structure adjustable to different
heights or selectively assembled to different heights according to
the users' need, and including a solid or stable structure for
allowing the rack device to be solidly or stably supported on the
erected working position and for preventing the rack device from
failing down.
[0045] Although this invention has been described with a certain
degree of particularity, it is to be understood that the present
disclosure has been made by way of example only and that numerous
changes in the detailed construction and the combination and
arrangement of parts may be resorted to without departing from the
spirit and scope of the invention as hereinafter claimed.
* * * * *