U.S. patent application number 10/548789 was filed with the patent office on 2006-08-03 for trut frame of a tent.
Invention is credited to Kwan-Jun Choi.
Application Number | 20060169312 10/548789 |
Document ID | / |
Family ID | 34475720 |
Filed Date | 2006-08-03 |
United States Patent
Application |
20060169312 |
Kind Code |
A1 |
Choi; Kwan-Jun |
August 3, 2006 |
Trut frame of a tent
Abstract
The present invention provides a tent frame typically comprised
of poles and roof braces, and cross bracing struts located between
two adjacent poles, and center bracing struts hinged on between the
roof brace and the sliding hub of the pole, wherein each roof brace
is supported with a center bracing strut, the top end of the center
bracing strut is hinged on the roof brace, and the low end is
hinged on the cross bracing strut approaching the sliding hub end.
The tent frame is more stable and easy to be folding up.
Inventors: |
Choi; Kwan-Jun; (KyoungNam,
JP) |
Correspondence
Address: |
Hart Baxley Daniels & Holton
90 John Street
Suite 309
New York
NY
10038
US
|
Family ID: |
34475720 |
Appl. No.: |
10/548789 |
Filed: |
November 8, 2004 |
PCT Filed: |
November 8, 2004 |
PCT NO: |
PCT/CN04/01264 |
371 Date: |
September 12, 2005 |
Current U.S.
Class: |
135/143 ;
135/145 |
Current CPC
Class: |
E04H 15/50 20130101 |
Class at
Publication: |
135/143 ;
135/145 |
International
Class: |
E04H 15/44 20060101
E04H015/44 |
Foreign Application Data
Date |
Code |
Application Number |
Dec 17, 2003 |
CN |
200320119566.3 |
Claims
1. A tent frame typically comprised of poles and roof braces, and
cross bracing struts located between two adjacent poles, and center
bracing struts hinged on between the roof brace and the sliding hub
of the pole, wherein each roof brace is supported with a center
bracing strut, the top end of the center bracing strut is hinged on
the roof brace, and the low end is hinged on the cross bracing
strut approaching the sliding hub end.
2. A tent frame as claimed in claim 1, wherein crossing the
diagonal line of the frame, the two center bracing struts are
hinged on the roof brace with the top ends, but the low ends of
them are tilted to opposite side of the diagonal line, and hinged
on the coordinated cross bracing strut respectively approaching to
the sliding hub end.
3. A tent frame as claimed in claim 1, wherein said cross bracing
strut is attached with a tip bearing for pivoting the low end of
the center bracing strut on.
4. A tent frame as claimed in claim 1, wherein the low end of the
center bracing strut can be hinged on the side wall of the sliding
hub beyond the pivoting point of the low end of the cross bracing
strut on.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a tent frame.
[0003] 2. Description of Prior Art
[0004] In accordance with prior art, the conventional structure of
foldable tent, as shown in FIG. 1 and FIG. 1A, is typically
comprised of four poles 1' and roof cross braces 2', between two
adjacent poles 1' proper number of cross bracing struts 3' 3'' are
located, wherein the cross bracing struts 3', as shown in FIG. 1,
can be directly connected to said adjacent poles 1' respectively
with the both ends by one hinged on a static hub 7' located on the
tip end of one pole 1', and another end hinged on sliding hub 5'
fitting on another pole 1' (as shown in FIG. 3), or three pair of
cross bracing struts 6' are set upon, as shown in FIG. 2 (for
meeting to the necessary of big scale frame tent); on the other
side, a center bracing strut 4' supporting the roof brace 2' is
hinged on between the roof brace 2' and the sliding hub 5 with the
both ends respectively (cooperating to refer FIG. 3), so that two
cross bracing struts 3' 3'' and the center bracing strut 4' are
hinged on one sliding hub 5' at side wall and corner
individually.
[0005] But there are some shortcomings existing in said tent frame
as follows: [0006] 1. because said center bracing strut 4' are in a
plane structured with said roof cross brace 2' and said pole 1', so
as pitching or folding up, said center bracing strut 4' just only
exerts supporting effect in this plane, but not generate side
supporting force to the roof brace 2', hence the whole unfolded
frame is not stable as expected, especially to the large size tent,
this problem is more obviously, due to the more load exerting on
the center bracing strut 4' via the roof brace 2', the single
pressure in this plane often makes the center bracing strut 4'
swing so as to be unstable. [0007] 2. concerning to the folding-up
process, the user just exerts all force on the cross bracing struts
3' 3'' so that the sliding hub 5' is indirectly pushed down along
the pole 1', but due to the center bracing strut 4' hinged on said
sliding hub 5', the moved sliding hub 5' has to bring the center
bracing strut 4' to draw the roof brace 2' to fold in this process,
so the sliding hub 5' should be bore exact resistance force coming
from the center bracing strut 4', for this sake, the sliding hub 5'
has to be made of high-strength material, so that the production
cost is gone up, on the other hand, even so, the folding force
exerting on the roof brace 2' is not so big that the roof brace 2'
is folded smoothly.
OBJECTS AND SUMMARY OF THE INVENTION
[0008] It is therefore a main object of the present invention to
provide a stable tent frame that can be pitched up and folded up
easily and smoothly.
[0009] For achieving the above-mentioned object, the present
invention provides a tent frame that is typically comprised of
poles and roof braces, and cross bracing struts located between two
adjacent poles, and center bracing struts hinged on between the
roof brace and the sliding hub of the pole, in which each roof
brace is supported with a center bracing strut, the top end of the
center bracing strut is hinged on the roof brace, and the low end
is hinged on the cross bracing strut approaching the sliding hub
end.
[0010] Wherein, two center bracing struts are arranged on two
opposite sides of the diagonal line of the frame, the both top ends
of them are hinged on the roof brace, and the low ends of them are
respectively hinged on the two cross bracing struts approaching the
sliding hub ends.
[0011] Said cross bracing strut is attached with a tip bearing for
pivoting the low end of the center bracing strut on.
[0012] The low end of the center bracing strut can be hinged on the
side wall of the sliding hub beyond the pivoting point of the low
end of the cross bracing strut on.
[0013] As utilizing above-mentioned project, because the low end of
the coordinated center bracing strut is hinged on the cross bracing
strut, the center bracing strut is not located in the plane
structured by the roof brace and the pole, so that when pitching or
folding up, the center bracing strut not only generates support
force in the plane structured by the roof brace and the pole, but
also exerts side support force to the roof brace so as to keep the
roof brace stable without any swinging as in unfolding state,
especially to large size of frame tent the support is more
stability.
[0014] On the other hand, as folding up, the cross bracing strut
can directly draw the center bracing strut bending to the inward,
but not via the sliding hub, so the sliding hub bears less force,
meanwhile exert more force on the roof brace so as to facilitate to
fold up more easily. And the requirement of the material of the
sliding hub is relatively reduced, and the production cost is gone
down too.
BRIEF DESCRIPTION OF THE DRAWINGS
[0015] FIG. 1 is a scheme of the prior art.
[0016] FIG. 2 is a scheme of another prior art.
[0017] FIG. 3 is an enlarged view showing the structure of the
sliding hub of the prior art.
[0018] FIG. 4 is a scheme of the present invention.
[0019] FIG. 5 is an enlarged view showing the hinging method of the
center and cross bracing struts of the present invention.
[0020] FIG. 6 is an enlarged view showing another hinging method of
the center and cross bracing struts of the present invention.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
[0021] Referring to FIG. 4, a frame tent provided by the present
invention is typically comprised of poles 1 and roof braces 2,
cross bracing struts 3 located between two adjacent poles 1, and
center bracing struts 4 hinged on between the roof brace 2 and the
sliding hub 5 of the pole, in which the cross bracing struts 3, as
shown in FIG. 1, can be directly connected to said adjacent poles 1
respectively with the both ends by one hinged on a static hub 7
located on the tip end of one pole 1, and another end hinged on
sliding hub 5 fitting on another pole 1 (as shown in FIG. 3, FIG. 5
and FIG. 6), or three pair of cross bracing struts 6 are set upon,
as shown in FIG. 2 and FIG. 4 (for meeting to the necessary of big
scale frame tent); on the other side, the center bracing strut 4 is
hinged on the roof brace 2 with the top end.
[0022] Wherein each roof brace 2 is supported with a center bracing
strut 4, the low end of the center strut 4 is hinged on the cross
bracing strut 3 approaching the sliding hub end.
[0023] Referring to FIG. 4, crossing the diagonal line of the
frame, the two center bracing struts 4 are hinged on the roof brace
2 with the top ends, but the low ends of them are tilted to
opposite side of the diagonal line, and hinged on the coordinated
cross bracing strut respectively approaching to the sliding hub 5
end, so that the two center bracing struts 4 support the roof brace
2 from the both sides crossing the diagonal line of the frame to
make the frame rigidify without swinging as pitching up.
[0024] For making the hinging connection more smoothly, the cross
bracing strut 3, as shown in FIG. 5, is attached with a tip bearing
8 for pivoting the low end of the center bracing strut 4 on; also
referring to FIG. 6, the low end of the center bracing strut 4 can
be hinged on the sliding hub 5 pivoting end of the cross bracing
strut 3; or directly hinged on the side wall of the sliding hub 5
(not shown in drawing).
[0025] So, as folding up, the cross bracing strut 3 can directly
draw the center bracing strut 4 bending to the inward, but not via
the sliding hub 5, so the sliding hub 5 bears less load, meanwhile
exert bigger force on the roof brace 2 so as to facilitate to fold
up more easily.
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