Title:
A Top Frame for Foldable Tent
Kind Code:
A1


Abstract:
The present invention provides a top frame of foldable tent including a set of foldable roof braces and a set of coordinated sub-braces constructing the main frame is typically employed with a hydraulic tappet fixed between the static pivot hub pivoting all the sub-braces and spreader pivoting all the roof braces with both ends, by means of the jack-up and hold-on features of the hydraulic tappet, said spreader is pushed down and kept in the ultimate position to bring the entire roof braces q and sub-braces to expend out. Said structure has fewer parts, simple, convenient for manufacturing and combination features.



Inventors:
Choi, Kwan-jun (Ham Yang-Gun, KR)
Application Number:
11/428680
Publication Date:
06/14/2007
Filing Date:
07/05/2006
Primary Class:
International Classes:
E04H15/36
View Patent Images:
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20020112749ShadebrellaAugust, 2002Ludka
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20070137683Fast-erecting portable structureJune, 2007Price et al.



Primary Examiner:
YIP, WINNIE S
Attorney, Agent or Firm:
SW Patent Office (Sugar Land, TX, US)
Claims:
I claim:

1. A top frame for foldable tent including a set of foldable roof braces and a set of coordinated sub-braces constructing the main frame is typically employed with a hydraulic tappet fixed between the static pivot hub pivoting all the sub-braces and spreader pivoting all the roof braces with both ends, by means of the jack-up and hold-on features of the hydraulic tappet, said spreader is pushed down and kept in the ultimate position to bring the entire roof braces q and sub-braces to expend out.

2. A top frame for foldable tent as claimed in claim 1, wherein said spreader has a quad low portion with crossing grooves.

Description:

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to an attachment for camping and trailering, and more particularly to a lockable top frame for foldable tent.

2. Description of Prior Art

In accordance with the conventional technology, a top frame for foldable tent, as shown in FIG. 1 and FIG. 2, including a set of foldable roof braces 1′ and a set of coordinated sub-braces 5′ constructing the main frame, is typically comprised of a strut 2′, a spring 3′, a spreader 4′ and an end block 6′, wherein a pivot hub 21′ fixed on the top end of said strut 2′ is pivoted radically and respectively each sub-brace 5′, the another end of said each sub-brace 5′ is pivoted on the foldable roof brace 1; said strut 2′ is put on sequentially with spring 3′ and the spreader 4′ pivoting with all the foldable roof braces 1′ from the bottom end, finally fixed with the end block 6′ via a bowel pin 62′ at the bottom end; approaching the bottom end of said strut 2′, an elastic clamp 7′ is located, coordinating to it, said spreader 4′ is possessed of a catching notch 41 opened at the low portion for the elastic clamp 7′ locking into so as to locate the spreader 4′ on the strut 2′.

When tending to close the tent applying above-mentioned structure, just need to press down the elastic clamp 7′ located on the catching notch 41′ of the spreader 4′ slightly to release the lock function between the elastic clamp 7′ and the catching notch 41′, so that the spreader 4′ slides up along with the trunk of the strut 2′ under the restoring force of the spring 3′, the pivoted roof braces 1′ loosing support are closed to the center strut 2′ to finish the close operation.

In the close state, the spreader 4′ is pushed upward closing to the static pivot hub 21′ under the elastic force of the spring 3′ so as to locate on the high position without any extra force.

As tending to expending the tent, just overcoming the elastic force of spring 3′, push down the spreader 4′ until the elastic clamp 7′ locking into the catching notch 41′, by means of the sub-braces 5′ pivoted on the static pivot hub 21′, the foldable roof braces 1′ is drew up expending. But, the force exerted on the spreader 4′ by the user overcoming the long distance elastic force of the spring 3′ should be enough big, so as to bring inconvenient to the user, especially to the shorter, in order to reach the spreader 4′, they have to stand on tiptoe, even so the spreader 4′ is still not got so that the tent is not able to be opened, hence the open operation the tent is not convenient.

Additionally, said top frame structure has some shortcomings, like as more parts, complicated structure, difficult manufacture and combination.

OBJECTS AND SUMMARY OF THE INVENTION

It is therefore a main object of the present invention to provide a top frame for foldable tent having fewer parts, simple structure, facilitating to manufacturing and combination, easy open operation saving labor features.

For achieving the above-mentioned object, the present invention provides a top frame for foldable tent, which including a set of foldable roof braces and a set of coordinated sub-braces constructing the main frame is typically employed with a hydraulic tappet fixed between the static pivot hub pivoting all the sub-braces and spreader pivoting all the roof braces with both ends, by means of the jack-up and hold-on features of the hydraulic tappet, said spreader is pushed down and kept in the ultimate position to bring the entire roof braces q and sub-braces to expend out.

Said spreader has a quad low portion with crossing grooves facilitating to exerting pushing force.

As utilizing above-mentioned project, due to substituting a hydraulic tappet for the conventional strut, spring and end block and locating device set upon between the static pivot hub and the spreader, the structure has fewer parts, simple, convenient for manufacturing and combination features.

As in open state, under jack-up and hold-on of said hydraulic tappet, said spreader is pushed down on ultimate low position so that the entire roof braces and sub-braces are kept in open state such as in expending out state; as tending to close the tent, just push up the spreader along the hydraulic tappet to bring the entire roof braces and sub-braces to close to the center downward, by means of tying up of a rope, the tent is closed down; as tending to open the tent, remove away the tying rope, under the pushing function of the hydraulic tappet, the spreader is pushed down to bring the entire roof braces and sub-braces to expend out until get the ultimate point and hold on, so all the open operation is very convenient without any extra force exerting.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exploded view of the prior art.

FIG. 2 is a perspective view showing the combination state of the prior art.

FIG. 3 is an exploded view of the present invention.

FIG. 4 is a perspective view showing the combination state of the present invention.

FIG. 5 is a perspective view showing the closed state of the present invention.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

A top frame of foldable tent provided by the present invention is as same as the conventional to suit to foldable tent including a set of foldable roof braces 1 and a set of coordinated sub-braces 5 constructing the main frame.

Referring to FIG. 3, the present invention is typically comprised of a hydraulic tappet 2 and spreader 3. Wherein said hydraulic tappet 2 is a conventional goods, so the detail is not described here, it typically includes a sleeve 21 and an inner rod 22. One end of the hydraulic tappet 2 (the end of sleeve 21 in drawing) is fixed on the static pivot hub 4 pivoting with the entire sub-braces 5, the another end of the hydraulic tappet 2 (the rod 22 end in drawing) is fixed on the spreader 3, by means of the jack-up and hold-on features of the hydraulic tappet, said spreader 3 is pushed down and kept in the ultimate position to bring the entire roof braces q and sub-braces 5 to expend out.

As tending to close the tent, just push up the spreader to bring the pivot center of the entire roof braces 1 to move up, such as bringing the entire sub-braces 5 and roof braces 1 to concentrate to the center, then cooperate to a rope (not shown in drawings), the tent is tied up, as shown in FIG. 5.

As tending to open the tent, remove away the tying rope, under the pushing function of the hydraulic tappet 2, the spreader 3 is pushed down to bring the entire roof braces 1 and sub-braces 5 to expend out until get the ultimate point and hold on, as shown in FIG. 4, so all the open operation is very convenient without any extra force exerting.

Said awning 3 is fixed on pivoting hub 23 of said awning boom frame 2 with the center, and each corner is fixed on the free end of each cornice boom 4.

In a word, as utilizing above-mentioned project, due to substituting a hydraulic tappet 2 for the conventional strut, spring and end block and locating device set upon between the static pivot hub and the spreader, the structure has fewer parts, simple, convenient for manufacturing and combination features.