U.S. patent application number 09/901278 was filed with the patent office on 2002-12-26 for screwless angle bar rack.
Invention is credited to Lin, Jin Shy.
Application Number | 20020195410 09/901278 |
Document ID | / |
Family ID | 21670487 |
Filed Date | 2002-12-26 |
United States Patent
Application |
20020195410 |
Kind Code |
A1 |
Lin, Jin Shy |
December 26, 2002 |
Screwless angle bar rack
Abstract
An angle bar rack formed of horizontal bars and vertical angle
bars, the horizontal bars having hook holes and recessed retaining
holes respectively disposed at the inner sidewall of each
horizontal bar adjacent to the hook holes, the vertical angle bars
having upward hooks respectively hooked in the hook holes of the
horizontal bars, each upward hook having a retaining portion curved
outwards and respectively engaged into the recessed retaining holes
of the horizontal bars.
Inventors: |
Lin, Jin Shy; (Kaohsiung,
TW) |
Correspondence
Address: |
Keith Kline
PRO-TECHTOR INTERNATIONAL SERVICES
20775 Norada Court
Saratoga
CA
95070-3018
US
|
Family ID: |
21670487 |
Appl. No.: |
09/901278 |
Filed: |
July 9, 2001 |
Current U.S.
Class: |
211/190 ;
211/187; 211/191 |
Current CPC
Class: |
A47B 57/16 20130101 |
Class at
Publication: |
211/190 ;
211/187; 211/191 |
International
Class: |
A47F 005/00 |
Foreign Application Data
Date |
Code |
Application Number |
Jun 26, 2001 |
TW |
89212312 |
Claims
What the invention claimed is:
1. An angle bar rack comprising a plurality of vertical angle bars
and a plurality of horizontal bars respectively connected to one
another, wherein said vertical angle bar each comprise an inner
sidewall and at least one longitudinally series of equally spaced
upward hooks respectively projected from the inner sidewall, said
upward hooks, each having a top end terminating in an outwardly
curved retaining portion; said horizontal bars each comprise a
plurality of hook holes adapted to receive the hooks of said
vertical angle bars, and a plurality of retaining holes
respectively disposed adjacent to said hook holes and adapted to
receive the retaining portions of said hooks, keeping the top end
of each of said hooks to be respectively stopped at an inner
sidewall of each of said horizontal bar.
2. The angle bar rack of claim 1 wherein said retaining holes are
recessed holes respectively formed on an inner sidewall of each of
said horizontal bar.
3. The angle bar rack of claim 1 wherein said retaining holes are
through holes through inner and outer sidewalls of each of said
horizontal bars.
4. The angle bar rack of claim 1 wherein said retaining holes are
respectively spaced above said hook holes.
5. The angle bar rack of claim 1 wherein said retaining holes are
respectively equally spaced from said hook holes at different
elevations.
Description
BACKGROUND OF THE INVENTION
[0001] The present invention relates to a screwless angle bar rack
formed of vertical angle bars and horizontal bars and, more
particularly, to such a screwless angle bar rack in which the
horizontal bars are secured to the inner sidewall of each of the
vertical angle bars so that multiple screwless angle bar racks can
be set together and closely attached to one another.
[0002] Regular angle bar racks (combination racks) are formed of
vertical angle bars and horizontal bars. Similar designs are seen
in Taiwan Patent Publication No. 219037 (Application Serial No.
86209238), entitled "Structure of combination rack"; Publication
No. 370826 (Application Serial No. 87215018), entitled "improved
structure of angle bar rack". According to these designs, the
vertical angle bars each have hook holes and retaining holes
alternatively arranged into longitudinal series (in No. 370826, the
retaining holes are recessed holes), and the horizontal bars each
have smoothly arched, downwardly extended hooks respectively hooked
in the hook holes of the vertical angle bars and forced into
engagement with the retaining holes. After connection between the
vertical angle bars 10 and the horizontal bars 20, as shown in FIG.
1, the hooks 201 of the horizontal bars 20 protrude over the outer
sidewall of each of the vertical angle bars 10. When two screwless
angle bar racks are put together, the protruding hooks 201 hinder
the racks from being closely abutted against each other. Further,
because the protruding hooks 201 of one rack may be stopped against
the protruding hooks 201 of the other when two screwless angle bar
racks are put together, thereby causing the user unable to freely
remote a horizontal bar 20 from the racks.
SUMMARY OF THE INVENTION
[0003] The present invention has been accomplished to provide a
screwless angle bar rack, which eliminates the aforesaid drawbacks.
It is one object of the present invention to provide a screwless
angle bar rack formed of vertical angle bars and horizontal bars,
wherein the horizontal bars are secured to the inner sidewall of
each of the vertical angle bars so that multiple screwless angle
bar racks can be set together and closely attached to one another.
It is another object of the present invention to provide a
screwless angle bar rack, which enables the user to freely remove
either horizontal bar from the vertical angle bars. According to
one aspect of the present invention, the screwless angle bar rack
is formed of vertical angle bars and horizontal bars. The
horizontal bars each comprise a plurality of hook holes, and
recessed retaining holes respectively disposed at the inner
sidewall of each horizontal bar adjacent to the hook holes. The
vertical angle bars each comprise a plurality of upward hooks
respectively hooked in the hook holes of the horizontal bars, each
upward hook having a retaining portion curved outwards and
respectively engaged into the recessed retaining holes of the
horizontal bars and stopped at the inner sidewall of each of the
vertical angle bars. According to another aspect of the present
invention, the retaining holes can be recessed holes formed in the
inner sidewall of each of the horizontal bars, or through holes
through inner and outer sidewalls of each of the horizontal
bars.
BRIEF DESCRIPTION OF THE DRAWINGS
[0004] FIG. 1 illustrates the construction of a screwless angle bar
rack constructed according to the prior art.
[0005] FIG. 2 is an exploded view of a part of an angle bar rack
according to the present invention.
[0006] FIG. 3 is an assembly view of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0007] Referring to FIGS. 2 and 3, a screwless angle bar rack is
comprised of vertical angle bars 1 and horizontal bars 2
respectively connected to one another. Each vertical angle bar 1
comprises at least one, for example, two longitudinally series of
equally spaced hooks 11 respectively projected from the inner
sidewall. The hooks 11 are formed integral with the inner sidewall
of the respective angle bar 1 and curved upwards, each having a top
end terminating in an outwardly curved retaining portion 22. Each
horizontal bar 2 comprises a plurality of hook holes 21 adapted to
receive the hooks 11 of the vertical angle bars 1, and a plurality
of retaining holes 22 respectively disposed adjacent to the hook
holes 21 and adapted to receive the retaining portions 22 of the
hooks 11. The retaining holes 22 can be recessed holes respectively
formed on the inner sidewall of the respective horizontal bar 2, or
through holes through the inner and outer sidewalls of the
respective horizontal bar 2. The retaining holes 21 can be formed
in the respective horizontal bar 2 and respectively spaced above or
below the hook holes 21. Alternatively, the retaining holes 21 can
be arranged in pair, and equally spaced from the hook holes 21 at
different elevations.
[0008] During installation, the hooks 11 of the vertical angle bars
1 are respectively hooked in the hook holes 21 of the horizontal
bars 2 to force the retaining portions 22 of the hooks 11 into
engagement with the retaining holes 22 of the horizontal bars 2.
When installed, the hooks 11 of the vertical angle bars 1 are
respectively stopped at the inner sidewall of each of the
horizontal bars 2, and therefore the outer wall of each of the
vertical angle bars 1 is maintained smooth.
[0009] A prototype of angle bar rack has been constructed with the
features of FIGS. 2 and 3. The angle bar rack functions smoothly to
provide all of the features discussed earlier.
[0010] Although a particular embodiment of the invention has been
described in detail for purposes of illustration, various
modifications and enhancements may be made without departing from
the spirit and scope of the invention. Accordingly, the invention
is not to be limited except as by the appended claims.
* * * * *