U.S. patent application number 11/211675 was filed with the patent office on 2007-03-01 for trampoline frame structure.
Invention is credited to Arthur Chu.
Application Number | 20070049463 11/211675 |
Document ID | / |
Family ID | 37805080 |
Filed Date | 2007-03-01 |
United States Patent
Application |
20070049463 |
Kind Code |
A1 |
Chu; Arthur |
March 1, 2007 |
Trampoline frame structure
Abstract
The present invention discloses a trampoline frame structure,
which comprises: multiple transverse pipes, six joint sleeves, and
three support pipes, wherein all the transverse pipes are
interconnected to form a circle; each joint sleeve has an insertion
portion and a clamping portion, and the clamping portion can
tightly clamp the connection portions of the transverse pipes, and
the insertion portion of each joint sleeve is inserted into the
opening of the end of the support pipe, and thus, the support pipes
can support the circle formed by the transverse pipes. The
trampoline frame structure of the present invention is constructed
without the welding used in the conventional technology, and can be
easily assembled and disassembled, and can be conveniently stored
with less storage space occupied.
Inventors: |
Chu; Arthur; (Chu Pei City,
TW) |
Correspondence
Address: |
ROSENBERG, KLEIN & LEE
3458 ELLICOTT CENTER DRIVE-SUITE 101
ELLICOTT CITY
MD
21043
US
|
Family ID: |
37805080 |
Appl. No.: |
11/211675 |
Filed: |
August 26, 2005 |
Current U.S.
Class: |
482/27 |
Current CPC
Class: |
A63B 21/023 20130101;
A63B 5/11 20130101 |
Class at
Publication: |
482/027 |
International
Class: |
A63B 5/11 20060101
A63B005/11 |
Claims
1. A trampoline frame structure, comprising: multiple transverse
pipes, interconnected to form a circle; at least six joint sleeves,
wherein each said joint sleeve has an insertion portion and a
clamping portion, and said clamping portions fixedly clamp the
connection portions of said transverse pipes; at least three
support pipes, wherein at least one opening of each said support
pipe accommodates said insertion portion of said joint sleeve so
that said circle formed by said transverse pipes can be supported
by said support pipes.
2. The trampoline frame structure according to claim 1, wherein
said insertion portion of said joint sleeve further comprises at
least two arc-shaped platelets, and a slit is formed between each
two said arc-shaped platelets, and when said insertion portion is
being inserted into the opening of said support pipe, the width of
said slit will be pressed to shrink gradually, which enables the
size of the opening of said clamping portion to decrease and
enables said transverse pipes to be tightly clamped by said
clamping portions.
3. The trampoline frame structure according to claim 2, wherein the
width of said slit grows gradually from one end of said slit to the
other end near said clamping portion.
4. The trampoline frame structure according to claim 1, wherein
said transverse pipes are interconnected via sleeve-joint.
5. The trampoline frame structure according to claim 1, wherein two
ends of each said transverse pipe are partially flattened.
6. The trampoline frame structure according to claim 1, wherein
said support pipes are U-shaped.
7. The trampoline frame structure according to claim 1, wherein
each said transverse pipe has multiple holes, and said holes are
used to install a bouncing face to said circle formed by said
transverse pipes.
8. The trampoline frame structure according to claim 7, wherein
said bouncing face further comprises multiple elastic elements and
a mat, and one end of said elastic element is joined to said hole
of said transverse pipe, and the other end of said elastic element
is joined to said mat.
9. The trampoline frame structure according to claim 8, wherein
said elastic elements are springs.
10. The trampoline frame structure according to claim 1, wherein
said clamping portion of said joint sleeve is partially flattened.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a frame structure,
particularly to an easily-disassembled and high-safety frame
structure of a trampoline.
[0003] 2. Description of the Related Art
[0004] The living quality of modern people has been greatly
promoted; however, the time and space for enjoying sport or leisure
activities is relatively decreased. Therefore, the indoor sports
that are space-saving and can be played anytime, such as
weightlifting or exercises with a treadmill, a stepper, and a chest
press machine, have been extensively accepted by people, and there
are various sport or physical training equipments in the
marketplaces, such as trampolines, exercise bikes, steppers,
treadmills, dumbbells, etc.
[0005] In the trampoline frame structure extensively used at
present, the trampoline frames are joined to their support legs via
welding. As shown in FIG. 1, the bouncing mat 10 in the center of
the circle formed by the trampoline frames 14 is stretched out by
the springs 12; the trampoline frames 14 are joined to each other
via welding, and the trampoline frames 14 are joined to their
support legs 16 via welding also. As the welded portions are apt to
corrode, and also as there may be false welding or virtual welding
generated during the welding process, the welded portions may be
fractured during usage, which will incur safety problems or even
endanger the user's life. Further, the welded trampoline frame
structure cannot be disassembled any more, and when not in use, it
occupies storage space rather.
[0006] Accordingly, the present invention proposes a trampoline
frame structure to overcome the abovementioned problems.
SUMMARY OF THE INVENTION
[0007] The primary objective of the present invention is to provide
a trampoline frame structure, which is constructed with transverse
pipes, support pipes and joint sleeves and free from the welding
used in the conventional technology, and can be easily assembled
and disassembled.
[0008] Another objective of the present invention is to provide a
trampoline frame structure, which has the characteristics of easy
assembly and disassembly and can be conveniently stored with less
storage space occupied.
[0009] To achieve the abovementioned objectives, the trampoline
frame structure of the present invention comprises: multiple
transverse pipes, at least six joint sleeves, and at least three
support pipes, wherein all the transverse pipes are interconnected
to form a circle; each joint sleeve has an insertion portion and a
clamping portion, and the clamping portion can fixedly clamp the
connection portions of the transverse pipes, and the insertion
portion of each joint sleeve is inserted into the opening of the
end of the support pipe, and the support pipes support the circle
formed by the transverse pipes.
[0010] To enable the objectives, technical contents,
characteristics, and accomplishments of the present invention to be
more easily understood, the embodiments of the present invention
are to be described below in detail in cooperation with the
attached drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] FIG. 1 is a perspective view schematically showing a
conventional trampoline structure.
[0012] FIG. 2 is a perspective view schematically showing the
trampoline frame structure according to the present invention.
[0013] FIG. 3 is a perspective view of the joint sleeve according
to the present invention.
[0014] FIG. 4 is a diagram schematically showing the assembly of
the support pipe and the joint sleeve.
DETAILED DESCRIPTION OF THE INVENTION
[0015] Refer to FIG. 2 and FIG. 3. The trampoline frame structure
of the present invention comprises: multiple transverse pipes 20,
three support pipes 22, and six joint sleeves 24. The structures of
those elements are described below. With respect to the joint
sleeve 24, each joint sleeve 24 has an insertion portion 26 and a
clamping portion 28; the insertion portion 26 is formed of two
arc-shaped platelets 30, and a slit 32 is formed between those two
arc-shaped platelets 30, and the width of the slit 32 grows
gradually from one end of the slit 32 to the other end near the
clamping portion 28, i.e. the slit 32 is V-shaped; and the clamping
portion 28 of the joint sleeve 24 is partially flattened. With
respect to the transverse pipe 20, two ends of the transverse pipe
20 are also partially flattened; all the transverse pipes 20 are
interconnected to form a circle via sleeve-joint; and each
transverse pipe 20 has multiple holes 34. With respect to the
support pipe 22, the support pipe 24 is U-shaped; and the opening
of two ends of the support pipe 22 can separately accommodate the
insertion portions 26 of the joint sleeve 24. Thus, the description
of all the elements of the trampoline frame structure of the
present invention is completed, and the assembly process of the
trampoline frame structure of the present invention is to be
described below.
[0016] Also refer to FIG. 4. Firstly, two ends of each transverse
pipe 20 are separately inserted into the clamping portions 28 of
the joint sleeves 24, and thus, all the transverse pipes 20 are
interconnected to form a circle via sleeve-joint, and the
connection portions of the transverse pipes 20 are sleeve-held by
the clamping portion 28 of the joint sleeve 24. Next, the insertion
portions 26 of the joint sleeves 24 are separately inserted into
the openings of the support pipes 22, and thus, the support pipes
22 can support the circle formed by the transverse pipes 20. When
the insertion portion 26 is being inserted into the opening of the
support pipe 22, the width of the slit 32 of the insertion portion
26 will be pressed to shrink gradually, which enables the size of
the opening of the clamping portion 28 to decrease; thereby, those
transverse pipes 20 are tightly clamped by the clamping portions
28. Thus, the assembly of the trampoline frame structure of the
present invention is completed. Next, a bouncing face is installed
to the trampoline frame structure; the bouncing face is composed of
multiple elastic elements 36 and a mat 38; the elastic elements 36
may be springs, and one end of each elastic element 36 is joined to
the hole 34 of the transverse pipe 20, and the other end of the
elastic element 36 is joined to the mat 38; thus, the mat 38 is
stretched out, and the installation of the bouncing face is
completed.
[0017] In summary, the trampoline frame structure of the present
invention is constructed with the transverse pipes 20, the support
pipes 22 and the joint sleeves 24 and free from the welding used in
the conventional technology, and can be easily assembled and
disassembled. Further, the trampoline frame structure of the
present invention has the characteristics of easy assembly and
disassembly and can be conveniently stored with less storage space
occupied.
[0018] Those embodiments described above are to clarify the present
invention to enable the persons skilled in the art to understand,
make, and use the present invention and not intended to limit the
scope of the present invention. Any equivalent modification and
variation according to the spirit of the present invention is to be
included within the scope of the present invention.
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