U.S. patent application number 13/200623 was filed with the patent office on 2013-03-28 for foldable tent.
The applicant listed for this patent is Brian Cox, Zach Zimmer. Invention is credited to Brian Cox, Zach Zimmer.
Application Number | 20130074895 13/200623 |
Document ID | / |
Family ID | 47909882 |
Filed Date | 2013-03-28 |
United States Patent
Application |
20130074895 |
Kind Code |
A1 |
Zimmer; Zach ; et
al. |
March 28, 2013 |
Foldable tent
Abstract
The tent frame includes an upper hub with a plurality of ribs
intended to extend outwardly and a lower hub having an equal number
of stretchers. The ends of the stretchers are pivotally connected
to the ribs. As the lower hub moves upwardly, the stretchers force
the ribs outwardly to erect the tent. Flexible cords extend down
from the upper hub through the lower hub and out apertures in the
bottom of the lower hub. Pulling the cords apart from within the
tent causes the lower hub to move upwardly toward the upper hub to
erect the tent. Alternatively, the cords can be passed around
pulleys in the lower hub and upwardly through apertures in the top
of the upper hub. Pulling the cords apart from above the tent
causes the lower hub to move upwardly toward the upper hub to erect
the tent.
Inventors: |
Zimmer; Zach; (San Diego,
CA) ; Cox; Brian; (San Diego, CA) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Zimmer; Zach
Cox; Brian |
San Diego
San Diego |
CA
CA |
US
US |
|
|
Family ID: |
47909882 |
Appl. No.: |
13/200623 |
Filed: |
September 27, 2011 |
Current U.S.
Class: |
135/98 |
Current CPC
Class: |
E04H 15/28 20130101 |
Class at
Publication: |
135/98 |
International
Class: |
E04H 15/28 20060101
E04H015/28 |
Claims
1.-8. (canceled)
9. In a tent having a tent fabric and a frame adapted to support
the fabric wherein said frame includes an upper hub with a
plurality of elongated ribs pivotally connected thereto and
intended to extend radially outwardly therefrom and a lower hub
having a plurality of elongated stretcher members having first ends
pivotally connected thereto, the number of stretcher members in
said plurality of stretcher members being equal to the number of
ribs in said plurality of ribs and wherein the free ends of each of
said stretcher members are pivotally connected to a different one
of said ribs whereby as said lower hub moves axially upwardly
toward said upper hub, said stretcher members force said ribs
outwardly to erect said tent, wherein said improvement comprises:
said upper hub having an interior and an upper wall with at least
one aperture therein and being dimensioned so as to allow two cords
to pass therethrough without interfering with the operation of said
frame; said lower hub having an interior and a lower wall with at
least one aperture therein and being dimensioned so as to allow two
cords to pass therethrough without interfering with the operation
of said frame; first and second pulleys located within one of said
upper and lower hubs; first and second cords extending from the
interior of the other of said upper and lower hubs toward and into
said one of said upper and lower hubs, said first cord passing
around said first pulley and said second cord passing around said
second pulley, said first and second cords then extending through
said other of said upper and lower hubs and extending through the
said at lease one aperture in the other of said upper and lower
hubs so as to be accessible from the exterior thereof.
10. The improvement as claimed in claim 9 wherein said lower wall
of said lower hub includes two apertures therein with a different
one of said two of cords being capable of passing through each
aperture.
11. The improvement as claimed in claim 9 wherein said upper wall
of said upper hub includes two apertures therein with a different
one of said two of cords being capable of passing through each
aperture.
Description
BACKGROUND OF THE INVENTION
[0001] The present invention is directed toward a foldable tent and
more particularly, toward an improved frame for a foldable tent
that allows a person to erect or open the tent from inside or
outside of the same.
[0002] Quick opening tents of the type to which the subject matter
of this application is directed are, per se, well known in the art.
Examples can be found in U.S. Pat. No. 5,479,954 that issued to Lin
on Jan. 2, 1996 and U.S. Published Application No. 2007/0062569 to
Joo-Tai published Mar. 22, 2007.
[0003] All such prior art tents are structurally very similar and
operate in substantially the same manner. They all include a tent
fabric supported on a frame. The fabric can be secured to the
inside or the outside of the frame. The frame includes a plurality
of elongated ribs that are pivoted to an upper hub and which are
intended to extend radially outwardly therefrom. The frames also
include an equal number of elongated stretcher members that are
pivoted to a lower hub and to the ribs. As the lower hub moves
axially upwardly toward the upper hub, the stretcher members force
the ribs outwardly to erect the tent. The system works essentially
like an umbrella being opened.
[0004] To assist the user in opening or erecting such prior art
tents, the frame conventionally includes a flexible cord that has
one end secured to the lower hub. The cord then extends upwardly
through an axial opening in the upper hub where it is accessible
from above the tent on the outside thereof. The tent is erected by
pulling upwardly on the cord to pull the lower hub upwardly toward
the upper hub. In some cases, the distal end of the cord may
include a handle or the like to assist the user in gripping the
cord to pull it up. As the cord is pulled upwardly, it is also
frequently necessary to push the upper hub downwardly to ensure
that the lower and upper hubs are being drawn together.
[0005] While such prior art tents may work well, they do present
certain problems, particularly with larger tents. Depending on the
height or width of the tent, it may sometimes be difficult to reach
the cord at the top of the tent frame. And even if one could reach
the cord, it' might be difficult to apply enough force to pull the
same upwardly to erect the tent. Obviously, some taller people may
be able to erect such prior art tents, while others may not be able
to do so.
[0006] Thus, there is a need for a foldable tent frame that can be
easily opened or erected by someone who may not be able to reach
over the top of the tent to open the same from above.
SUMMARY OF THE INVENTION
[0007] The present invention is designed to overcome the
deficiencies of the prior art discussed above. It is an object of
the present invention to provide a foldable tent frame that can be
opened without having to reach over the top of the tent.
[0008] It is another object of the present invention to provide a
foldable tent frame that can be opened from inside the tent.
[0009] It is an even further object of the present invention to
provide a foldable tent frame that can be opened from inside the
tent or from above the tent from the outside thereof.
[0010] In accordance with illustrative embodiments demonstrating
features and advantages of the present invention, there is provided
a tent that has a tent fabric and a frame adapted to support the
fabric on either the inside or the outside thereof. The frame
includes an upper hub with a plurality of elongated ribs pivotally
connected thereto and intended to extend radially outwardly and a
lower hub having a plurality of elongated stretcher members having
first ends pivotally connected thereto. The number of elongated
stretcher members is equal to the number of ribs and the free ends
of the stretcher members are pivotally connected to the ribs. As
the lower hub moves axially upwardly toward the upper hub, the
stretcher members force the ribs outwardly to erect the tent.
Flexible cords are held in the interior of the upper hub and extend
downwardly through the lower hub and out apertures in the bottom of
the lower hub. Manually pulling the cords apart from within the
tent causes the lower hub to move upwardly toward the upper hub to
erect the tent. Alternatively, the cords can be passed around
pulleys in the lower hub and be directed upwardly through the upper
hub and through apertures in the upper surface of the upper hub.
Manually pulling the cords apart from above the tent causes the
lower hub to move upwardly toward the upper hub to erect the
tent.
[0011] Other objects, features and advantages of the invention will
be readily apparent from the following detailed description of a
preferred embodiment thereof taken in conjunction with the
drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0012] For the purpose of illustrating the invention, there is
shown in the accompanying drawings one form that is presently
preferred; it being understood that the invention is not intended
to be limited to the precise arrangements and instrumentalities
shown.
[0013] FIG. 1 is a front perspective view of the major portion of
the tent frame of the invention shown in its fully collapsed
condition;
[0014] FIG. 2 is a view similar to FIG. 1 showing the tent frame in
its initial stage of being erected;
[0015] FIG. 3 is another view similar to FIGS. 1 and 2 illustrating
a further stage of the opening of the tent frame;
[0016] FIG. 4 illustrates the tent frame in its fully opened or
erect position;
[0017] FIG. 5 is a bottom perspective view of the hub system used
with the present invention with the cords arranged for opening the
tent from the inside thereof;
[0018] FIG. 6 is a side elevational view of the hub system of FIG.
5;
[0019] FIG. 7 is a cross-sectional view similar to FIG. 6 but
showing the interior of the hubs;
[0020] FIG. 8 is a top perspective view of the hub system used with
the present invention with the cords arranged for opening the tent
from the outside thereof;
[0021] FIG. 9 is a side elevational view of the hub system of FIG.
8, and
[0022] FIG. 10 is a cross-sectional view similar to FIG. 9 but
showing the interior of the hubs.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0023] Referring now to the drawings in detail wherein like
reference numerals have been used throughout the various figures to
designate like elements, there is shown in FIGS. 1-10 a foldable
tent constructed in accordance with the principles of the present
invention and designated generally as 10. Although the tent 10
includes a tent fabric 12, this is, per se, conventional and is,
therefore, being shown only diagrammatically in figures. The fabric
12 is not being shown in most of the figures so that the frame 14
and the operation thereof can be seen in more detail. Again, it
should be pointed out that the present invention can be used with
the type of tent that has the fabric secured to either the interior
or exterior of the frame. That is, the frame can be inside of or
outside of the tent fabric.
[0024] As with many prior art tent frames, the frame 14 includes an
upper hub 16 and a lower hub 18 arranged therebelow but in axial
alignment therewith. A plurality of elongated ribs, such as shown
at 20 and 22, have their upper ends pivotally connected to the
upper hub 16. While six such ribs are shown in the figures, it
should be clear that this is by way of example only. Fewer or more
ribs may be employed depending on the nature and size of the tent
10.
[0025] A plurality of stretcher members such as shown at 24 and 26
have their lower or inner first ends pivotally connected to the
lower hub 18. The number of elongated stretcher members 24 and 26
is equal to the number of ribs 20 and 22. The upper or free ends of
each of the stretcher members 24 and 26 are pivotally connected to
a different one of the ribs 20 and 22.
[0026] As illustrated in FIGS. 1-4, as the lower hub 18 moves
axially upwardly toward the upper hub 16, the stretcher members 24
and 26 force the ribs 20 and 22 outwardly so that the ribs extend
radially outwardly from the first hub 16 to form the erected tent.
Extending upwardly from the lower hub 18 at the center thereof and
axially aligned therewith is a spindle 28. This is, perhaps, best
seen in FIG. 3. As shown best in FIGS. 7 and 10, the lower portion
of the upper hub 16 includes a recess 30 which is complementary in
shape to the shape of the upper part of the spindle 28. As the
upper and lower hubs 16 and 18 approach each other, the upper end
of the spindle 28 enters the recess 30 to ensure proper alignment
and provide a stop means for properly positioning the hubs in
spaced relationship as shown in FIGS. 7 and 10. Temporary locking
means can be provided to lock the upper and lower hubs 16 and 18
together in order to maintain the tent in its erect condition.
[0027] With the exception of the spindle 28 and recess 30 just
described, the tent and tent frame 14 and the operation thereof
described above are conventional. Examples can be found in the
patent to Lin and the published application to Joo-Tai referred to
above. For convenience, the entire disclosure of the Lin patent and
the Joo-Tai publication are incorporated herein by reference. As
can be seen in Lin and Joo-Tai, the upper and lower hubs are drawn
together by a cord that is attached to the lower hub and passes
upwardly through the upper hub so as to be exposed at the top and
exterior of the tent. By pulling on the cord from the top of the
tent, the lower hub is drawn upwardly to erect the tent. The
improved hub arrangement of the present invention allows the tent
to be erected from either above and outside of the tent or from
inside of the tent.
[0028] The details of the hub system of the present invention that
allow the tent to be erected from either above the tent or inside
the tent are shown in FIGS. 5-10. With reference first to FIGS. 5,
6 and 7, it can be seen that a flexible cord 32 extends around a
support 34 that is fixedly secured within the interior of the upper
hub 16. The two free ends 36 and 38 of the cord 32 extend
downwardly through the interior of the spindle 28 and through
apertures 40 and 42 formed in the lower wall 44 of the lower hub
18. Preferably, the lower wall 44 is in the form of a cover or cap
that can be snapped onto or otherwise secured to the lower hub 18
and which can be removed when desired.
[0029] The use of a single cord 32 that extends around the fixed
member 34 as shown in FIG. 7 is, of course, by way of example only.
It is possible to use two separate distinct cords that each have
their upper ends fixed in some manner within the interior of the
upper hub 16. It is also within the scope of the present invention
to use only a single cord having its upper end secured within the
hub 16 and the lower end extending downwardly through one of the
apertures 40 or 42.
[0030] If a single cord such as either cord 36 or 38 is utilized,
the tent can be opened from the interior thereof, i.e. from below
the hubs 16 and 18, by pulling down on the cord with one hand while
pushing up on the bottom 44 of the lower hub 18. This movement will
draw the hubs 16 and 18 toward each other in order to erect the
tent as described more fully above. With the use of two cords,
however, one need not push on the lower hub 18. Rather, grasping
each of the two cords with a different hand and moving the hands
apart will force the lower hub 18 upwardly as the sides of the
apertures 40 and 42 will act as cam surfaces as the cords are being
forced apart from each other.
[0031] FIGS. 8, 9 and 10 illustrate how the identical system can be
utilized to erect the tent from above. To accomplish this, the
cords 36 and 38 pass around pulleys 46 and 48 that are secured
within the lower hub 18 and then extend upwardly through openings
50 and 52 at the top end of the spindle 28 and through similar
apertures 54 and 56 in the recess 30. The cords 36 and 38 then pass
through apertures 58 and 60 in the upper wall or cap 62 of the
upper hub 16. As with the lower cap 44, the upper cap 62 is adapted
to be temporarily secured to the top of the upper hub 16 so that it
can be removed when desired.
[0032] With the cords 36 and 38 extending through the top wall 62
of the upper hub 16 as shown in FIGS. 8, 9 and 10, the tent can be
erected by holding the cords and pulling them up while pushing down
on the top 62 of the upper hub 16 or by drawing the cords 36 and 38
outwardly away from each other with two hands. In this way, the
upper edges of the apertures 58 and 60 will function as cam
surfaces drawing the hubs 16 and 18 together to erect the tent.
[0033] The present invention may be embodied in other specific
forms without departing from the spirit or essential attributes
thereof and accordingly, reference should be made to the appended
claims rather than to the foregoing specification as indicating the
scope of the invention.
* * * * *