SHADE CANOPY TENSIONING ASSEMBLY
A shade canopy tensioning assembly for keeping the fabric of a shade canopy (which includes umbrellas and other shade structures) taut, allowing the shade canopy to maintain its intended appearance, better withstand the elements, and ensure adequate shade provision. The assembly has distinct adjustment assemblies, coupled with at least one length manipulating rod and at least one threaded adjustment nut. These components can work together to tighten or loosen the fabric of a shade canopy when the fabric is attached to the assembly. Also, these components can be seamlessly integrated into shade canopy designs, allowing such designs to maintain their intended aesthetics. Further, these components allow the assembly to be easily adjusted, allowing the fabric of a shade canopy to be tightened or loosened with ease.
This application claims the benefit under 35 U.S.C. § 119(e) to a U.S. Provisional Patent Application having Ser. No. 63/421,365 filed on Nov. 1, 2022. The above application is incorporated by reference herein in its entirety.
BACKGROUND OF THE INVENTION Field of the InventionThe present disclosure relates generally to a shade canopy tensioning assembly that can maintain a fresh and taught appearance of fabric on shade canopies, including fabric on umbrellas. The assembly may stretch fabric on such canopies as a preventative measure against or remedy for fabric sagging. Also, the present disclosure encompasses a first and second adjustment assembly. When these adjustment assemblies are employed in tandem with a length manipulating bolt and at least one threaded adjustment nut, they can facilitate the adjustment of tension applied to fabric on shade canopies. Additionally, the present disclosure relates generally to providing a sheath that can be attached and support a shade canopy's larger structure. This sheath is capable of enveloping, either partially or wholly, the aforementioned first and second adjustment assemblies, thereby contributing to a visually pleasing aesthetic of shade canopies where at least one shade canopy tensioning assembly is deployed on.
Description of the Related ArtIn the field of art relating to large umbrellas and shade canopies commonly used outdoors, after a period of time it can often be observed that the fabric canopy of the umbrella or shade structure begins to sag, and this, in turn, can affect the functionality, longevity, and aesthetic appeal of these products. Sagging refers to the loosening or drooping of the fabric, potentially creating a concave or depressed area on the canopy or umbrella surface. This phenomenon typically arises from environmental conditions, such as prolonged exposure to the sun, rain, fluctuating temperatures etc. but can in certain instances be due to hasty installation, structural and/or design flaws, and material degradation, all of which compromise the tautness and smoothness of the fabric.
Sagging fabric has the potential to significantly impact both the performance and aesthetic appeal of the canopies used on an umbrella or other shade structure. Firstly, it reduces the effectiveness of shade provision, as the sagged areas may allow sunlight to penetrate unevenly or decrease the area/space shaded by fabric. Secondly, sagging fabric tends to accumulate water or other non-gaseous elements of the environment. This fact can lead to water, snow, dirt, or sand pooling in or on fabric. This not only adds extra weight to the structure upon which the canopy rests, but also stretches the fabric further, exacerbating the sagging issue. Moreover, as elements might pool in canopy/umbrella fabrics, living organisms may grow in such pools, causing the fabric to develop an unsightly appearance due to, for example, algae growth upon the fabric. Over time, the constant stress and element accumulation can lead to fabric wear, tear, and eventual failure. Additionally, when canopy/umbrella fabric sags, the intentional aesthetic design envisioned and crafted by the designer(s) becomes obscured or lost, diminishing the aesthetic and functional appearance originally planned.
While a primary cause of fabric sagging may be due to the environment, sagging may also be caused by the structural design of the shade canopy. For instance, non-adjustable ribs or supports limit the ability to tighten or adjust the fabric's tension. In a scenario where ribs are fixed, the fabric may not be stretched adequately during installation, leading to inherent sagging. As ribs may be comprised of a range of materials, they may expand or contract over time due to exposure to the elements, potentially leading to sagging of the canopy. Furthermore, as fabric naturally expands and contracts with temperature fluctuations, the lack of adjustability in the structure prevents compensation for these changes, leading to progressive sagging.
The quality of fabric material also plays a role in sagging. High- or low-quality fabric might be prone to sagging over time dependent on their material construction and design. For example, fabrics not treated for UV resistance may lose their tensile strength and flexibility due to prolonged exposure to sunlight. Similarly, fabrics that are not weather-resistant may absorb moisture, becoming heavier and more susceptible to sagging. Either way, even fabrics that are most resistant to the elements may experience sagging due to the repeated opening and closing of a canopy or umbrella, as this process may cause the fabric to consistently expand and contract.
To address this issue, some solutions have been developed to ensure fabric keeps a fresh, taut appearance by virtue of preventing sagging. However, at the time of this writing, the known solutions still possess challenges and limitations. For instance, one common approach is to ensure proper tensioning and support of the fabric by anchoring the fabric canopy's corners securely and using heavy-duty ropes or straps for horizontal support. Although somewhat effective, this technique not only demands precise, laborious installation and adjustment over time, but also compromises the inherent aesthetic elegance of a canopy or umbrella. Another prevalent approach incorporates elastic and bungee cord systems/assemblies attached to fabric ends, converging at a central point of the canopy or umbrella to retain fabric tautness. Nonetheless, this strategy, while functional, also diminishes the visual appeal of the canopy or umbrella, necessitates frequent assembly and disassembly during opening and closing, and may require multiple individuals for adjustment and tensioning, especially for larger installations.
In light of the challenges outlined, there remains a need for an innovative solution to the sagging fabric problem—one that ensures the fabric can remain taut, fresh, and relatively sag-free without undermining the aesthetic value of the canopy or umbrella. The need demands a solution with a near unnoticeable integration with the original aesthetic, preserving and enhancing the visual allure of the canopy/umbrella installed thereon. Furthermore, this need demands a solution with simplicity and user-friendliness, allowing for effortless adjustments to tighten or loosen canopy/umbrella fabric that can be efficiently executed by a single individual, thereby offering a blend of functionality, beauty, and convenience. Lastly, this need demands a solution that is structurally rigid, such that the overall structure of the canopy or umbrella the solution is installed on is not negatively affected (but may be positively affected) when the solution is used or manipulated.
SUMMARY OF THE INVENTIONThe present disclosure provides for a new shade canopy tensioning assembly. While the description is exemplified by referring to an umbrella, the scope of the invention(s) set forth herein should not be so limited, and could be implemented on any kind of shade structure, such as on a vehicle or building.
A shade canopy tensioning assembly, as described herein, is versatile in that it may take various forms. It may incorporate a diverse array of components, which can be combined in different permutations to create multiple distinct versions of the shade canopy tensioning assembly. Also, while one shade canopy tensioning assembly may be used on a shade canopy, a multitude of shade canopy tensioning assemblies may be used on a shade canopy to allow for the fabric of the shade to be stretched (or loosened) in the multiple directions where shade canopy tensioning assemblies are installed on a shade canopy.
That said, the present disclosure relates generally to a shade canopy tensioning assembly comprising a first adjustment assembly, at least one threaded adjustment nut, a second adjustment assembly, at least one length manipulating bolt, and sheath. A shade canopies' fabric may be attached to the first adjustment assembly and affixed to another point. A length manipulating bolt is run through the first adjustment assembly, at least one threaded adjustment nut, a second adjustment assembly, and a sheath. As this length manipulating bolt is rotated via external means (such as through a tool), the first adjustment assembly selectively slides in or out of the sheath, tightening or loosening the canopy fabric. The sheath may be attached to, or may also comprise, a rigid and fixed (relative to the canopy) support member.
The first adjustment assembly may have at least one canopy attachment point where a canopy can attach to the attachment point. The first adjustment assembly may also be made up of an adjustment member, a sleeve member, and a first rotation lock. Each the adjustment member, sleeve member, and first rotation lock may be in removable connection to one another.
The adjustment member may have the canopy attachment point thereon/formed therein and may also have at least one aperture formed therein. The at least one aperture may be configured and dimensioned to receive at least one length manipulating bolt such that a length manipulating bolt may enter the adjustment member (and enter or pass through the first adjustment assemblies' various components) in a horizontal plane of the adjustment member (and horizontal plane of the first adjustment assembly). Additionally, the adjustment member may have a first sleeve member insert, wherein the first sleeve member insert is configured and dimensioned to be inserted and secured to the aforementioned sleeve member.
As such, the sleeve member resembles a tube with openings at either side, a first opening and a second opening. Therefore, the first sleeve member insert may be inserted into the sleeve member at a first opening. To secure the first sleeve member insert to the sleeve member, the first sleeve member insert may have at least one screw hole dimensioned to align with at least one first screw hole formed on the sleeve member. This dimensioning may allow for at least one screw to traverse each of the sleeve member's first screw hole and the first sleeve member insert's screw hole, thereby securing the first sleeve member insert to the sleeve member.
On the second opening of the sleeve member, the aforementioned first rotation lock may be inserted. The first rotation lock may have at least one primary arcuate tab formed thereon, and a second sleeve member insert. The second sleeve member insert may facilitate the insertion and securing of the first rotation lock into the sleeve member. To this end, the second sleeve member insert may be inserted into the sleeve member at a second opening of the sleeve member. To secure the second sleeve member insert to the sleeve member, the second sleeve member insert may have at least one screw hole dimensioned to align with at least one second screw hole formed on the sleeve member. This dimensioning may allow for at least one screw to traverse each of the sleeve member's second screw hole and the second sleeve member insert's screw hole, thereby securing the second sleeve member insert to the sleeve member.
As the first rotation lock may have at least one primary arcuate tab formed thereon, the at least one primary arcuate tab may be in sliding engagement with at least one groove of the aforementioned sheath. For context, the primary arcuate tab may be formed on an exterior of the first rotation lock that has a first dimension. The primary arcuate tab may thus be engaged with the groove of the sheath, the groove being formed on an interior of the sheath of a second dimension, greater than the first dimension. Due to the primary arcuate tab's engagement with the groove, the configuration may prevent rotation of the first rotation lock within the sheath while simultaneously permitting translation of the first rotation lock (and thereby the first adjustment assembly) within the sheath. To this end, the sheath may at least partially envelope the first adjustment assembly. The arcuate tab may be alternatively described as a spline serving to transmit torque from the first adjustment assembly to the second adjustment assembly.
As the first adjustment assembly comprises the adjustment member, sleeve member, and first rotation lock, the sheath may envelope the first rotation lock and at least part of the sleeve member. Impliedly, this may allow the dimensioning of the first rotation lock and the sleeve member to fit within the sheath. Also, impliedly, this may allow the adjustment member to remain unenveloped by the sheath (or simply, exposed to the elements) and may allow the adjustment member to have a dimensioning larger than what may fit within the sheath. As will be described in subsequent detail, the first adjust member may thus translate in or out of the sheath, the sleeve member becoming more or less enveloped by the sheath as the first adjustment assembly is slid in or out of the sheath.
To prevent the first adjustment assembly from sliding completely out of the sheath, the sheath may have a retention ring installed therein. The retention ring may be of a third dimension, smaller than the aforementioned second dimension, but greater than the first dimension. In effect, such dimensioning may allow for the first rotation lock to be retained within the sheath by the retaining ring, preventing the first rotation lock's exit from the sheath.
As per the sheath, the sheath may be a tubular structure with any cross-sectional shape (a circle, square, triangle). The sheath may be of a dimension and length that allows the at least one length manipulating bolt to be inserted into the sheath and extend the full length of the sheath. Further, the sheath may comprise a hinge or movement assembly at a distal end opposite to the distal end the first adjustment assembly may be located on/in the sheath (as may be inferred from the Figures). The hinge or movement assembly may be an assembly that is at least partially enveloped by the sheath, or not enveloped at all, but structured to allow the sheath to move or rotate about a hub, runner hub, lift, slider, leg, pole, wall mount, or other structure that may support a shade canopy. Also, the sheath may comprise a structural support for a canopy rib, drive head assembly, or idler head assembly, roller, or arm support. The structural support may be an assembly that is at least partially enveloped by the sheath, or not enveloped at all, and may be located at any distance along a length of a sheath. The structural support may allow a canopy rib (or other similar structure) to connect to the sheath and may otherwise act as a device to connect a structure that supports the shade canopy.
As the assembly may have at least one length manipulating bolt, the length manipulating bolt may traverse, at least a partial length through the first adjustment assembly, fully through at least one adjustment nut (which may be a lock nut, self-locking nut, or other form of nut that resists loosening under vibrations and torque), and at least partially through the second adjustment assembly. Inherently, the length manipulating bolt may have threading and a bolt head. The length manipulating bolt may also be of stainless-steel composition.
The length manipulating bolt may be dimensioned such that it can be inserted into the aforementioned aperture of the adjustment member on the first adjustment assembly and an aperture of the second adjustment assembly (as will be subsequently described). In such an instance, the length manipulating bolt's bolt head may not be able to traverse the aperture of the adjustment member such that the shank and threads of the bolt are inserted through the aperture of the adjustment member, but the bolt head is not. Additionally, the bolt head may have a commonly known drive/recess such as a flat head recess, Phillips head recess, or hex (Allen) key recess. Also, the bolt head may have a head of a dimension that is able to be rotated by a socket, bit, or wrench.
The length manipulating bolt may be configured and dimensioned to selectively distance the first adjustment assembly and the second adjustment assembly by rotation of the at least one length manipulating bolt within the at least one threaded adjustment nut. As such, and as will be described in subsequent detail and as may be apparent from the Figures, the length manipulating bolt may allow for at least part of the first adjustment assembly to translate in or out of the sheath, through the rotation of the at least one length manipulating bolt. One means by which the length manipulating bolt accomplishes this objective is that the at least one threaded nut is coupled to the first adjustment assembly in non-rotating engagement (preventing the threaded nut and the first adjustment assembly from rotating about one another), or otherwise disposed in a non-rotating engagement such that the at least one threaded nut does not rotate when the length manipulating bolt is rotating within the at least one threaded nut. Therefore, as the at least one length manipulating bolt is rotated about the at least one adjustment nut, the length manipulating bolt either pushes or pulls the first adjustment assembly closer to or further from the second adjustment assembly (also allowing at least part of the first adjustment assembly to slide in or out of the sheath). As a result, the length manipulating bolt may configured and dimensioned to permit translation of the at least one threaded nut and a first adjustment assembly within the sheath.
As may now be apparent, should an edge of a canopy be attached to the first adjustment assembly at the canopy attachment point, the remainder of the canopy extending in a direction away from the first adjustment member and fixed at a point in such a direction, as the first adjustment member is slid out from the sheath via rotation of the length manipulating bolt, the canopy is tightened. Such tightening allows for the canopy to maintain a taut appearance.
As per the second adjustment assembly, the second adjustment assembly may be completely enveloped by the sheath. Moreover, the second adjustment assembly may also comprise an aperture and a second rotation lock. The at least one aperture of the second adjustment assembly may be configured and dimensioned to receive the at least one length manipulating bolt about a horizontal plane of the second adjustment assembly.
As the second adjustment assembly is completely enveloped by the sheath, impliedly, this may allow the dimensioning of the second rotation lock to fit within the sheath. To secure the second rotation lock (and the second adjustment assembly) to the sheath, the second rotation lock may have at least one screw hole dimensioned to align with at least one screw hole formed on the sheath. This dimensioning may allow for at least one screw to traverse each of the second rotation lock's screw hole and the sheath's screw hole, thereby securing the second rotation lock (and second adjustment assembly) to the sheath.
Lastly, the second rotation lock may have at least one secondary arcuate tab formed thereon. The at least one secondary arcuate tab may be in engagement with at least one groove of the aforementioned sheath. For context, the secondary arcuate tab may be formed on the exterior of the second rotation lock that has a first dimension. The secondary arcuate tab may thus be engaged with the groove of the sheath, the groove being formed on the interior of the sheath of a second dimension, greater than the first dimension. Due to the secondary arcuate tab's engagement with the groove, the secondary arcuate tab may prevent rotation of the secondary rotation lock within the sheath.
For a fuller understanding of the nature of the present disclosure, reference should be had to the following detailed description taken in connection with the accompanying drawings in which:
Like reference numerals refer to like parts throughout the several views of the drawings.
DETAILED DESCRIPTION OF A PREFERRED EMBODIMENTTurning now descriptively to the figures,
Fabric of a shade canopy may be removably attached to the shade canopy tensioning assembly 5 via the canopy attachment point 12. Fabric of a shade canopy may be a number of different materials that may be used to provide shade or protection from the elements (such as rain, water or dust). As such, fabric of a shade canopy may be, and is not limited to being, polyester, canvas, coated canvas, acrylic, olefin, vinyl, fabric made under the trademark Sunbrella® or fabrics similar thereto, polyvinyl chloride (as a coating on fabric or fabric itself), nylon, and/or solution-dyed fabrics. That said, the canopy attachment point 12 may be a range of different solutions that can removably connect to the fabric. For example, the canopy attachment point 12 may be a grommet (that may receive an eyelet affixed to the fabric), a button (that may receive a snap affixed to the fabric), a Velcro strip (that corresponds to a Velcro strip of the fabric), a magnetic fastener (that may magnetically attract a magnet on the fabric), or a structure (that can have the fabric tied to or hooked thereon). To this end, the fabric may pertain to a shade canopy, and the shade canopy may be, and is not limited to being an umbrella, pop-up canopy, awning, pergola (with fabric providing shade thereto), cabana (with fabric providing shade thereto), gazebo (with fabric providing shade thereto), marquee, tent, or carport. As such, and as may be apparent, the present disclosure is contemplated as being usable on variety of shade canopies.
With reference now to
With reference now to
With continued reference to the first adjustment assembly, it may also be noted that the second sleeve member insert 18′ may be inserted into the sleeve member 15. Thereafter, it can be noted that the second sleeve member insert 18′ (with a first rotation lock 18 attached thereon or formed thereon) may be secured to the sleeve member 15 by virtue of a screw 60. As may be apparent from the Figure, a screw 60 may traverse the sleeve member 15 and the second sleeve member insert 18′ (at the corresponding and aligning second sleeve member insert screw hole 18″ and at least one second sleeve member screw hole 17), thereby securing the second sleeve member insert 18′ to the sleeve member 15. As may be apparent, more than one screw 60 may traverse the sleeve member 15 and the second sleeve member insert 18′ to secure the second sleeve member insert 18′ to the sleeve member 15.
With continued reference to the first adjustment assembly 10, and assuming the above elements are inserted and secured as mentioned in the above, at least one length manipulating bolt 40 may be inserted into the first adjustment assembly 10 (as depicted). As not depicted in
With continued reference to
With continued reference to
With continued reference to
Without reference to the figures, it may be noted that the first rotation lock 18 (and at least one primary arcuate tab 19 formed thereon) and the at least one second rotation lock 21 (and at least one secondary arcuate tab 28 formed thereon) may be of polyvinyl chloride, metal, or plastic construction. The at least one threaded adjustment nut 50 may be composed of stainless steel. Also, the at least one threaded adjustment nut 50 may be of a lock nut design. The screw 60 or various screws 60 as depicted in the Figures may be composed of stainless steel and have a commonly recognized recess, such as a Phillips head or flat head recess. Also, the screw 60 or various screw 60 as depicted in the Figures may have a flat or pointed tip. The at least one length manipulating bolt 40 may be composed of stainless steel. Also, the length manipulating bolt's 40 head may be configured and dimensioned to fit into the aperture such that the length manipulating bolt's 40 head is not visible from a side view of the first adjustment assembly. Also, the length manipulating bolt's 40 head may have a commonly recognized recess, such as a hex key/Allen key, or be rotatable through the use of a socket and wrench around the exterior of the bolt's 40 head.
With continued reference to
It is intended that all matters in the foregoing disclosure and shown in the accompanying drawings be interpreted as illustrative and not in a limiting sense.
Claims
1. A shade canopy tensioning assembly comprising:
- a first adjustment assembly;
- a second adjustment assembly;
- said first adjustment assembly being selectively moveable relative to said second adjustment assembly; and
- said first adjustment assembly being affixed to the shade canopy.
2. The shade canopy tensioning assembly of claim 1 further comprising a sheath, wherein said sheath comprises at least one groove, at least one structural support for a canopy rib, and at least one hinge at a distal end opposite to said first adjustment assembly.
3. The shade canopy tensioning assembly of claim 2 further comprising at least one threaded adjustment nut and at least one length manipulating bolt, wherein said length manipulating bolt traverses at least partially through said first adjustment assembly, through said at least one threaded adjustment nut, and at least partially into said second adjustment assembly.
4. The shade canopy of claim 3 wherein said at least one length manipulating bolt is configured and dimensioned to selectively move said first adjustment assembly relative to said second adjustment assembly by rotation of said at least one length manipulating bolt within said at least one threaded adjustment nut.
5. The shade canopy tensioning assembly of claim 3 wherein said first adjustment assembly further comprises an adjustment member, a sleeve member, and a first rotation lock, each in removeable connection to one another.
6. The shade canopy tensioning assembly of claim 4 wherein said adjustment member comprises at least one canopy attachment point and at least one aperture, wherein said at least one canopy attachment point is configured and dimensioned to allow for a canopy to become removably attached to said first adjustment assembly and wherein said at least one aperture is configured and dimensioned to receive said at least one length manipulating bolt about a horizontal plane of said adjustment member.
7. The shade canopy tensioning assembly of claim 4 wherein said adjustment member comprises a first sleeve member insert configured and dimensioned to be inserted and secured into said sleeve member.
8. The shade canopy tensioning assembly of claim 6 wherein said first sleeve member insert comprises at least one screw hole dimensioned to align with at least one first screw hole formed on said sleeve member such that at least one screw may traverse each of said first sleeve member insert's screw hole and said sleeve member's first screw hole, thereby securing said first sleeve member insert to said sleeve member.
9. The shade canopy tensioning assembly of claim 4 wherein said first rotation lock comprises at least one primary arcuate tab and a second sleeve member insert, wherein said second sleeve member insert is configured and dimensioned to be inserted and secured into said sleeve member.
10. The shade tensioning assembly of claim 9 wherein said at least one primary arcuate tab is disposed in sliding engagement with at least one groove of said sheath, wherein said at least one primary arcuate tab is configured and dimensioned to prevent rotation of said at least one first rotation lock and said first adjustment assembly within said sheath, and configured and dimensioned to permit translation of said first rotation lock and said first adjustment assembly within said sheath.
11. The shade canopy tensioning assembly of claim 10 wherein said primary arcuate tab and said first rotation lock are enveloped by said sheath, and said sleeve member and said first adjustment assembly are at least partially enveloped by said sheath.
12. The shade canopy tensioning assembly of claim 3 wherein said sheath comprises a retaining ring wherein said retaining ring is configured and dimensioned to prevent said first rotation lock from exiting said sheath.
13. The shade canopy tensioning assembly of claim 9 wherein said second sleeve member insert comprises at least one screw hole dimensioned to align with at least one second screw hole formed on said sleeve member such that at least one screw may traverse each of said second sleeve member insert's screw hole and said sleeve member's second screw hole, thereby securing said second sleeve member insert to said sleeve member.
14. The shade canopy tensioning assembly of claim 3 wherein said at least one threaded nut is coupled to said first adjustment assembly in non-rotating engagement, configured and dimensioned to prevent said at least one threaded nut and said first adjustment assembly from rotating about each other upon a rotational force being applied to said at least one length manipulating bolt, and configured and dimensioned to permit translation of said at least one threaded nut and said first adjustment assembly within said sheath.
15. The shade canopy tensioning assembly of claim 3 wherein said at least one threaded adjustment nut is a lock nut.
16. The shade canopy tensioning assembly of claim 3 wherein said second adjustment assembly comprising at least one aperture, wherein said aperture is configured and dimensioned to receive said at least one length manipulating bolt about a horizontal plane of said second adjustment assembly.
17. The shade canopy tensioning assembly of claim 3 wherein said second adjustment assembly comprises at least a second rotation lock.
18. The shade canopy tensioning assembly of claim 17 wherein said second rotation lock comprises at least one secondary arcuate tab in engagement with at least one groove of said sheath, wherein said at least one secondary arcuate tab is configured and dimensioned to prevent rotation of said at least one second rotation lock and said second adjustment assembly within said sheath.
19. The shade canopy tensioning assembly of claim 17 wherein said second rotation lock comprises at least one screw hole disposed in alignment with with at least one screw hole formed on said sheath.
20. The shade canopy tensioning assembly of claim 3 wherein said at least one length manipulating bolt is of stainless-steel composition and traverses the entire length of said sheath.
Type: Application
Filed: Oct 27, 2023
Publication Date: May 2, 2024
Inventor: Dougan H. Clarke (Miami, FL)
Application Number: 18/496,624