Note: Descriptions are shown in the official language in which they were submitted.
CA 02586419 2007-04-26
PILLAR INSERTION COMBINATION RACK SYSTEM
BACKGROUND OF THE INVENTION
(a) Field of the Invention
TheYpresent invention is related to a pillar insertion combination rack
system, and more particularly to one allows fast assembly by having
each pillar comprised of multiple sections with each section disposed
with a circumferential slot to be secured at a given point by means of a
pair of clamping members; each limitation corner of a rectangular or
polygonal rack is comprised of a lower ring and an upper ring; each
pillar is inserted into the limitation corner of the rack; wherein the
diameter of the upper ring is smaller than that of the lower ring with
both rings disposed concentrically; each side frame of the rack includes
an upper support rod and a lower rod joined to each other with a
connection rod ;and two abutted side frames of the rack are formed at a
right angle to each other and welded or secured with coils of wire at the
limitation corner of the rack.
(b) Description of the Prior Art:
A conventional pillar insertion combination rack as illustrated in Figs. 1 and
1-A
of the accompanying drawing, a rectangular rack 2 at its four corners each
inserted
with a pillar 3; each pillar includes multiple equally spaced sections with a
circumferential slot 31 defined by any two abutted sections for locating
purpose; a
limitation sleeve 22 is each disposed to four corners of the rack 2; at a
given location
of each pillar 3 where to be inserted into its respective limitation sleeve 22
is secured
with a pair of locating clamps 4 by biting two circumference slots; and each
pillar is
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then with its clamped sections inserted into its respective limitation sleeve
22 thus to
secure the rack 2 with four pillars respectively at four corners of the rack
2. Multiple
racks may be assembled on those same four pillars as required. The prior at
for
allowing convenient disassembly, assembly and location adjustment has been
r,. 5 popularly applied for displaying commodities in a shop or for glove
comparhnent at
home.
In the construction of the pillar insertion combination rack as illustrated,
each side
frame 21 of the rack 2 includes an upper support rod 211 and a lower support
rod 212;
a connection rod 213 usually made of metal wire material in a wave form is
first
soldered to both of the upper and the lower support rods 211, 212; the
limitation sleeve
22 is related to a hollow cone with a smaller top and larger bottom; each of
both ends
from each upper support rod 211 and each lower support rod 212 provides a
soldering
point P for soldering both ends of each side frame 21 to their respectively
limitation
sleeves 22 to make a frame 2A; and a top 23 usually a mesh is placed into and
confined by the frame 2A to complete the production of the rack 2. However,
molding of the limitation sleeve 22 consumes much of costs and materials, and
as
many as sixteen points needs the soldering job to connect four limitation
sleeves 22 to
four side frames 21 for the production of a rectangular rack 2. Other than
minute and
complicated soldering process and high process costs, soldering precision and
fastness
demand are potential factors contributing to the flaws of higher price,
difficulties in
manufacturing, and higher nonconformity rate found with the rack 2 of the
prior art.
SUMMARY OF THE INVENTION
The primary purpose of the present invention is to provide an improved
construction of a pillar insertion combination rack that is simple in
construction, and
precise and consistent in dimension to effectively replace equivalent function
provided
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by the limitation cone sleeves of the prior art for delivering better economic
benefits
and upgrading manufacturing efficiency of the rack. To achieve the purpose,
each
limitation corner of the rack is comprised of an upper ring and a lower ring
concentrically arranged with the diameter of the upper ring smaller than that
of the
lower ring; each pillar comprised of many sections with a circumferential slot
defined
by any two abutted sections; a clamping member made of two identical halves
facing
each other secures the pillar at where it to be inserted into the limitation
corner by
biting two circumferential slots; and the limitation corner may be
continuously molded
in automated process using a metal wire material.
Zo Another purpose of the present invention is to provide an improved
construction of a pillar insertion combination rack that is capable of
reducing soldering
requirements in the manufacturing process thus to significantly upgrade
manufacturing
efficiency and optimal economic benefits of lowering production costs. To
achieve
the purpose, the limitation corner is made of metal wire material in
continuous fashion
and folded automatically before performing spot soldering at where the metal
wire
ends; an upper frame with multiple upper rings of limitation corners, a lower
frame
with multiple lower rings of limitation corners, and multiple support rods
each usually
made in a waveform are separately processed before soldering the support rods
at
where between and to the upper and the lower frames with each limitation
corner
containing the upper ring and the lower ring concentrically arranged with the
diameter
of the upper ring smaller than that of the lower ring. Accordingly, both of
the upper
and the lower frames of the rack are each given a single spot soldering to
provide the
most reinforced and simplest construction for the rack.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is an exploded view of a construction of the prior art.
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Fig. lA is a sectional view showing a local part of the combination taken from
Fig.
1.
Fig. 2 is an exploded view of a construction of a first preferred embodiment
of the
present invention.
Fig. 2A is a sectional view showing a local part of the combination taken from
Fig.
2.
Fig. 3 is an exploded view of a construction of a second preferred embodiment
of
the present invention.
Fig. 3A is a perspective view of an enlarged local part of the second
preferred
embodiment of the present invention.
Fig. 3B is a side view of the combination of the second preferred embodiment
of
the present invention.
Fig. 3C is a side view of the combination of the second preferred embodiment
of
the present invention.
Fig. 4 is an exploded view showing a local part of the second preferred
embodiment of the present invention.
Fig. 5 is a perspective view showing the second preferred embodiment as
assembled.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring to Figs. 2 and 2A for a first preferred embodiment of the present
invention, a rectangular or a polygonal rack 5 (a rectangular rack in this
preferred
embodiment) includes four limitation corners, a top 53 usually made in a mesh
form,
four side frames 52, four pillars 3, and four sets of clamping members 4.
Wherein,
each limitation corner of the rack 5 is comprised of an upper ring 51A and a
lower ring
51B each made of metal wire material; the diameter of the upper ring 51A is
smaller
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than that of the lower ring 51B and both rings 51A, 51B are concentrically
disposed;
each side frame 52 also made of metal wire material includes an upper support
rod 521
and a lower support rod 522 parallel with each other, and a connection rod
usually
made in a waveform is disposed between and soldered to both support rods 521,
522;
each of both ends of the upper support rod 521 defmes a soldering point Pl,
and each
of both ends of the lower support rod 522 defines another soldering point P2;
both
ends of the upper support rod 521 are respectively soldered two upper rings
51A of the
limitation cotners at points P1, and both end of the lower support rod 522 are
respectively soldered to two lower rings 51B of the limitation corners at
points P2;
each shorter side frames 52 and each longer side frames 52 are soldered at
right angle
to each other to form the frame 5A of the rack 5; and the top 53 is placed in
the frame
5A.
Each pillar 3 contains multiple sections with a circumferential slot 31 defmed
by
any two abutted sections. At a given point of the pillar 3 where to be
inserted into its
respective limitation corner of the frame 5A is secured with a set of clamping
member
4; each clamping member 4 is comprised of two identical halves to secure the
pillar 3
by facing each other to bite two circumferential slots 31; and the pillar 3 is
inserted
with its clamped portion into and secured in the lower ring 51B and the upper
ring 51A
in sequence. The design of the limitation corner of the present invention
replaces the
larger hollow limitation cone sleeve 22 as illustrated in Fig. 1 of the prior
art to
effectively reduce production cost for achieving optimal economic benefits.
Now referring to Figs. 3, 3A, 3B, and 3C, a second preferred embodiment of the
present invention related to a pillar insertion combination rack 6 includes an
upper
frame 6A, a lower frame 6B, four pillars 3, four sets of clamping member 4,
and a top
6C. As also illustrated in Fig. 4, a metal wire is continuously coiled and
folded in
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automatic mode to form an upper frame 6A containing four upper rings 61A at
each
limitation corner and four upper side frames 621 in an integral part; another
length of
the same metal wire is again continuously coiled and folded in automatic mode
to form
a lower frame 6B containing four lower rings 62A at each limitation corner and
four
lower side frames 622 in an integral part; each of both of the upper frame 6A
and the
lower frame 6B is performed a spot soldering at a point P3 where both ends of
the
metal wire meet. The diameter of the upper ring 61A is smaller than that of
the lower
ring 61B.
A connection rod 623 made of the same wire material is disposed between and
soldered to both of the upper side frame 621 and the lower frame 622
respectively
from the upper frame 6A and the lower frame 6B. The top 6C usually a mesh is
placed in the upper frame 6A. Each pillar 3 contains multiple sections with a
circumferential slot 31 defined by any two abutted sections. At a given point
of the
pillar 3 where to be inserted into its respective limitation corner of the
limitation
corner is secured with a set of clamping member 4; each clamping member 4 is
comprised of two identical halves to secure the pillar 3 by facing each other
to bite two
circumferential slots 31; and the pillar 3 is inserted with its clamped
portion into and
secured in the lower ring 61 B and the upper ring 61 A in sequence. Finally
four pill ars
3 are inserted into their respective limitation corners to form the rack 6 as
illustrated in
Fig. 5.
Both of the upper and the lower frames 6A, 6B of the rack 6 are each given a
single spot soldering to provide the most reinforced and simplest construction
for the
rack to minimize the demand of soldering job to significantly upgrade
manufacturing
efficiency and realize optimal economic benefits by reduction of production
cost.
The prevent invention provides an improved structure of a pillar insertion
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combination rack system, and the application for a utility patent is duly
filed
accordingly.
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