The field of the disclosure described herein generally relates to a portable structure.
Vertical posts are ubiquitous structures that serve a wide variety of purposes relating to a necessity requiring height. One class of applications comprises of posts used in athletics to elevate attachments for goal structures such as a basketball backboard and hoop or a boxing punching element, elevate obstacles/borders such as a volleyball net, or be used as obstacles themselves such as a slalom post. Another class of applications comprises of posts used to elevate signs or signals for improved far-field visibility and examples include signs/signals for real estate for sale/lease, events, advertisement, and vehicle traffic control. Other devices that use vertical posts include but are not limited to an outdoor mailbox, lamp, and outdoor gas heater.
In many instances, posts are fixed into the ground and are not readily portable. Portability, transportability, and storability can be important if, for example, one would like to quickly set up a basketball backboard and hoop assembly and after use, easily collapse the assembly into a storage case that can fit a regular passenger vehicle. Portable posts can also be important for realtors needing to set up, remove, or transport for sale/lease signs. A more traditional real estate sign requires one to hire contractors to dig a hole and erect a bulky, non-collapsible post in the front yard of a home to be sold. Such posts also typically require a pickup truck or large utility vehicle to transport.
Unfortunately, sufficiently easy portability, transportability, and storability are not yet truly offered. With existing purportedly “portable” and “transportable” basketball backboard and hoops, transportability is limited to moving the entire assembly and base a small distance along a ground surface without the appreciable potential to collapse the assembly for easy transport in a personal automobile, such as the common type described by Van Nimwegen (U.S. Pat. No. 7,431,672 B2). While a reasonably collapsible implementation taught by Shannon (U.S. Pat. No. 7,407,453 B2) discloses a couple of embodiments of a basketball backboard and hoop system with either telescoping tubes or hinged struts that help collapse the backboard and hoop into a storage box, this box is “preferably installed within the ground so that the post assembly attaches to a top cover therefore flush with the ground.” Hence transportability is not possible.
Amrani (U.S. Pat. No. 8,028,448 B2) teaches embodiments of a collapsible real estate sign apparatus where the post is driven into the ground by a “hammer or mallet” or “rotary drive tool.” An apparatus transportation embodiment discloses a case with an “optional handle” “to store and transport” the sign assembly. However, the disclosure does not teach of using a dual-purpose carrying case as the secure means to fix the post nor use the case as a container to hold ballasts.
Furthermore, not only is there no prior portable, transportable, storable post, but also no apparatus whose orientation is adjustable by a dual-purpose carrying case. Finally, there is no prior post securement apparatus with an integrated diagnostic means to assess the verticalness of said post to facilitate optimal adjustments. Such adjustments are necessary to prevent, for example, a tilted basketball backboard and hoop on an uneven or non-level surface.
The present disclosure addresses all previously mentioned issues with a novel system comprising of a portable case and post mechanism. Embodiments of the present invention are designed such that a height-adjustable post can be quickly and easily erected or collapsed by a single adult quickly without the need for any tools. When the post is in the stored position, the case is capable of being transported by one adult and loadable onto a passenger vehicle. Furthermore, the present invention includes embodiments that position the case at some adjustable distance from the ground surface and integrate two construction levels that provide feedback on the level of flatness so that the post is aligned as true vertical as possible.
This disclosure presents two main convertible carrying case and securement system embodiments, EMB1 and EMB2. Both system embodiments have a case comprised of at least five contiguous panels that enclose a substantially hexahedral space if an optional sixth panel or lid is added to close the case. In addition to storage, said case acts as a securement foundation or base, with at least a pair of wheels on one end of said case, preferably a retractable pull handle on the opposite end of said wheels, optional straps attached to the two long side panels of said case, a construction level along with one of the long side panels of said case, another construction level along with one of the spanwise panels of said case, and four adjustable case support structure (ADJSS) sub-assemblies that each have a foot sub-assembly that incorporates one from a list comprising a plate, a ground screw, suction cups, or stake that are attached on one end of a threaded shaft. Preferably attached on the opposite distal end of each threaded shaft, is a knob, or generally a torque application element. The ADJSS allows users to compensate for non-level surfaces when setting up a vertical post.
The first system embodiment, EMB1 further comprises a base tube, preferably integrated with a T-shaped structural element (hereinafter called a “T-bar”) that can pivot about the axis normal to the base tube. Most notably, when said base tube is deployed for duty and not stored, the post projects upward from one of the distal ends of the case. The base tube and T-bar are preferably hollow tube-like structures. Said base tube can be part of an overall telescoping post with optional additional tube segments to extend the maximum height of the overall post. The extendable post segments are held in position with quick-release lock pins. A collar-connecting rod-slider mechanism can help guide the overall post assembly between the stored and deployed position. A quick-release lock pin positioned through lined up holes on both the slider and slider track provides the constraining force to prevent rotation of the base tube during deployment.
The second system embodiment, EMB2, alternatively comprises a proximally located stump that is structurally integrated with the case. Said stump can slide relative to a circular single-segment post or multiple-segment telescoping post and be fixed together with quick-release lock pin(s).
A variety of attachments can be fixed around the post or the most fully extended segment of a telescoping post with attachments preferably wrapping around or sliding in the top-most tube segment and fixed by a quick-release lock pin positioned through lined up holes in both the attachment and top-most tube segment. The overall geometry of said attachments is particular to the intended application.
For EMB1, the attachments can include but are not limited to a basketball backboard and hoop apparatus, a boom for suspending a real estate sign, one side of a volleyball or tennis net, batting cage tunnel, boxing punching element, and multi-sports barrier backstop. For EMB2, the attachments can include but are not limited to event/traffic signs, barricades, retractable belt or safety stanchions, signage and floor signs, gas lamp, lighting fixture, heater, gun barrel platform, cocktail tables, banner frames, one side of a volleyball or tennis net, a tetherball, batting cage tunnel, and multi-sports barrier backstop.
To help keep either EMB1 or EMB2 in place during use, weights may be placed in the case. An embodiment of the mating surface of said feet is made of high friction material. Applications of either EM1 or EMB2 over a soft ground surface have a foot sub-assembly embodiment that is preferable one from a list comprising a ground screw or alternatively a stake. An embodiment of EMB1 or EMB2 includes no feet or removed feet and the bottom or belly of the case in contact with the ground is made from high friction material. As for storage and transport, embodiments of either EMB1 or EMB2 include side-by-side coupling or grouping in a stack.
The drawings are provided to facilitate understanding in the detailed description. It should be noted that the drawing figures may be in simplified form and might not be to precise scale. In reference to the disclosure herein, for purposes of convenience and clarity only, directional terms such as top, bottom, left, right, up, down, over, above, below, beneath, rear, front, distal, and proximal are used with respect to the accompanying drawings. Such directional terms should not be construed to limit the scope of the embodiment in any manner.
When the post is deployed, one support embodiment has the case (101) elevated from the ground by four adjustable and removable support structure (ADJSS) sub-assemblies, one near each bottom corner of EMB1, as depicted in
Each foot (105, 108) comprises a plate that would be in contact with the ground surface during deployment of the post or storage. Embodiments of said foot (105, 108) have a plate-like bottom with a high grip surface for applications requiring high grip and have a rubber or synthetic equivalent lining the ground surface interfacing side of said plate. Connected on the opposite side of the ground-contacting portion of the plate is a substantially hemispherical element with a center-top borehole to accommodate a substantially threaded adjuster shaft. Each substantially hemispherical element of said foot (105, 108) has another small threaded borehole (144) where a fastening element such as a cone point set screw can be threaded in and substantially orthogonally engages the shank portion of said substantially threaded adjuster shaft so that said foot is securely fixed to the substantially threaded adjuster shaft.
Each substantially threaded shaft disposed through the floor (129) of the case (101) or a case extension (107), wherein bottom surface of case extension (107) is substantially coplanar with case floor (129) and juts out from the tube-side panel (104) sufficiently enough to place the ADJSS sub-assembly off the tube-side panel (104). Connected to each said substantially threaded shaft is a knob (106, 126). Said knobs allow users to turn the substantially threaded shaft and feet so that the ground clearance at each corner of the case (101) is adjusted and as well as the state of the overall post's vertical orientation without the need for any tools. The substantially threaded shafts connected to the knobs (126) at the wheel-side runs through a borehole structure (not shown) thick enough with a sufficient number of threads to engage the substantially threaded shafts and support the load. Torque can be supplemented with a surface embodiment of said knobs (106, 126) containing a cavity shape to allow engagement with a socket wrench drive and augment torque application from additional leverage provided by a wrench.
As mentioned, embodiments of the ADJSS include the ability to be removed, which allows the possibility for the outward bottom facing side of the case floor (129) to be in direct contact with the ground. The ADJSS sub-assembly can be removed by detaching the foot (105, 108) from said substantially threaded shaft connecting said knob (106, 126) and turning said knob (106, 126) in the counterclockwise sense until the substantially threaded shaft backs away from the threaded borehole and be altogether separated from the rest of the system, EMB1. To augment the traction, the embodiments of the bottom surface of the case floor (129) have a high friction lining (e.g., rubber, the synthetic equivalent of rubber, DYCEM®), coating (VHT® TRACKBITE, a.k.a. VHT®), or even one side of a hook and loop fastener (e.g., VELCRO®). The ground in contact with the bottom-facing side of the case floor (129) may also have the same high friction lining, coating, and complementary side of a hook and loop fastener.
Also within the case extension (107) is at least one bore to house the shaft of the retractable pull handle (109). The pull handle (109) has a stop to catch the outside end of the bore so that a pulling force can be applied to the case (101) when EMB1's post tubes (112, 121, 127) are in storage and being transported. During transport, EMB1 (100A) is lifted by the user via said pull handle (109) vertically off the ground at the tube-end so that the wheels (103) engage the ground surface.
EMB1 (100A) can optionally have construction levels (110, 111) comprising dyed liquid in a small clear hexagonally shaped pocket with sufficient gas void fraction to have a visible bubble and level indicators typically in the form of line markings on the outer surface of the hexahedral-shaped level. The exemplary embodiment has one level (110) attached near the top edge of one of said case's side panels (145), by any one of a variety of means and oriented such that when the bubble is in between the level indicators, the pitch angle of the case (101) is at a zero degree or a neutral pitch angle corresponding with a perfectly vertical post as viewed from the side of said case. A second level (111) is fixed on one of the shorter case panels (102, 104) or panels adjoining and orthogonal to the case's side panels (145), which for the exemplary embodiment, is shown in
For EMB1 (100A), the post comprises of the base tube (112) which is integrated with or molded as a T-bar element where the spanwise portion of the T-bar (125) forms an axis of rotation for the entire post assembly, as shown in
For multi-segment telescoping post embodiments, said base tube (112) can have a tube-like cross-section to support bending loads in a mass-efficient manner while also allowing extension tube segments to telescope in and out, as shown in
Additional hollow tube segment embodiments are possible for applications that require a higher-placed attachment.
To prevent rotation of the overall post during use and to help guide the overall post assembly between the stored and deployed position, a collar-connecting rod-slider mechanism is used, said mechanism comprising a collar (114), connecting rod (116), collar-to-connecting rod pin (115), slider (118), connecting rod-to-slider pin (117), and slider track (119). The collar (114) wraps closely around said base tube (112) while still allowing said collar (114) to slide relative to said base tube (112) with both minimum friction and collar-to-base tube gap. Said collar (114) has an eyelet pin bore on wheel-side that said collar-to-connecting rod pin (115) is disposed through. The other end of said connecting rod (116) is attached to said slider (118) via connecting rod-to-slider pin (117) disposed through an eyelet pin bore on said slider (118). Said slider track (119) is securely mounted to the spanwise center of said case floor (129) between the near proximal and wheel-side distal end of said case (101) so said slider (118) sliding on said slider track (119) helps guide the overall post assembly to and from the stored position (as shown in
When the overall post is in the stored position (see
During storage, the case (101) has extra room for nets, quick-release lock pins, signs, and other items. For embodiments that accommodate basketball or sign applications, the case (101) can be large enough to have the basketball backboard or sign lie flat inside the case (101) without the need to be folded. To prevent interference with other components, ledges extending from the inner facet (not shown) of the case panels can be devised which the basketball backboard or sign rests on and is above the post. Straps (124) or handles can be attached to any of the case panels to facilitate the transport of EMB1 to and from a passenger vehicle or other storage location.
To illustrate the versatility of the present invention,
While
Certain applications may require a more proximally located post, as opposed to the offset configuration used in EMB1 (100A). Therefore, a second system embodiment, EMB2 (100B), of the present invention has also been devised, that is identical to EMB1 (100A) in every way except for the location of the post with respect to the case (101) as well as the manner which the post is attached to the case (101). More specifically, EMB2 (100B) proximally locates a stump (136) that is fastened to or structurally integrated with the case (101). The stump (136) can be solid or preferably hollow and tube-like to attain the requisite post-securement without incurring excess mass. Said stump (136) can slide into the circular opening of a separate hollow single-segment tube or base portion (137) of a multiple segment telescoping tube and is fixed together with a quick-release lock pin (138) disposed through lined-up holes present in both said stump (136) and said base tube (137). Alternatively, the outer surface of a separate single-segment tube or base portion (137) of a multiple segment telescoping tube slides into the opening of the hollow stump (136) and is fixed together with a quick-release lock pin (138) disposed through lined-up holes present in both the stump (136) and base tube (137).
Holes (142) for the stump (136) are clearly illustrated in
As with EMB1, to augment stability, weights can be placed in the case (101). Case (101) embodiments include provisions (e.g., covers, not shown) to add weights without damaging said stump (136), construction levels (110 and 111), and inside-case knobs (126).
Because of the proximal location of the stump in EMB2, a case extension (107) is not necessary. Hence, the ADJSS sub-assembly that shows the knob (106), foot (105), substantially threaded shaft connecting said knob (106), and foot (105) that is disposed through said case extension (107) (see
To facilitate storage and transport embodiments of the present invention include means to group two or more systems. One embodiment, as shown in
Alternatively, a side-by-side coupling embodiment is achieved by a plurality of large binder-style clips, preferably spring metal or high elastic modulus synthetic material, around one of the side panels (145) of a case (101) with a side panel (145) of a separate case. An alternative side-by-side coupling embodiment would comprise of a plurality of holes on coupled case side panels and a plurality of quick-release lock pins each disposed through one of the lined-up holes the side panels (145) of the coupled cases (101).
The cases (101) of EMB1 (100A) and EMB2 (100B) can be made of a broad variety of plastics, metal, vinyl, fiberglass, or carbon fiber depending on the application. Tubes/stumps (112, 121, 127, 136, 137, 139, 141, collars (114), T-bar (125), cup-like attachment elements (130 and 134), boom (135), pin shafts (113, 115, 117), or pin portions of quick-release lock pins (120, 122, 128, 133, 138, 140), attachment extension (131), connecting rod (116), slider (118), slider rail (119), threaded shaft of each ADJSS sub-assembly, and shaft attached to pull handle (109) are preferably made from metal with high strength to weight ratio, such as aluminum, but materials like plastic or carbon-fiber may be alternatively be used if the application sees fit. The ledge (123), pull handle (109), each wheel excluding the tire (103), feet (105, 108) of each ADJSS sub-assembly, the handle of quick-release lock pins (120, 122, 128, 133, 138, 140) as well as the turning knob (106, 126) for each ADJSS sub-assembly can be made from a broad variety of plastics or vinyl. An optional embodiment can include a rubber or vinyl coating for additional grip. The tire portion of said wheel (103) and bottom surface of each ADJSS foot (105, 108) can be made of rubber or synthetic rubber for high grip. The case straps (124) or handles can be made from woven textile, a variety of plastics, or metal depending on the intended application.
For parts where one component slides relative to another like two co-axial tubes or a collar around a tube or a cup-like element around a tube, the gap between the sliding surfaces should be large enough to allow for smooth low friction sliding but small enough to avoid “slop” that excessive part-to-part gaps can introduce. The dimensional clearances that support such characteristics are on the order of dozens of thousandths of an inch to a few tenths of an inch.
The dimensions including the thickness of the case panels (102, 104, 145) depend on the material used but are such that sufficient rigidity for the application is provided. Furthermore, the case panels (102, 104, 145) may be completely flat, reinforced with ribbed topology, or be internally corrugated, or fiber-reinforced.
Many alterations and modifications may be made by those having ordinary skill in the art without departing from the spirit and scope of the embodiment. Therefore, it must be understood that the illustrated embodiment has been set forth only for the purposes of example and that it should not be taken as limiting the embodiment as defined by the following claims. For example, notwithstanding the fact that the elements of a claim are set forth below in a certain combination, it must be expressly understood that the embodiment includes other combinations of fewer, more, or different elements, which are disclosed herein even when not initially claimed in such combinations.
The present application claims priority to provisional patent application No. 63/157,915 filed on Mar. 8, 2021, disclosures of which are incorporated herein at least by reference.
Number | Name | Date | Kind |
---|---|---|---|
5248140 | Mower | Sep 1993 | A |
5259612 | Matherne | Nov 1993 | A |
7407453 | Shannon | Aug 2008 | B2 |
7431672 | Van Nimwegen | Oct 2008 | B2 |
7691014 | Nye | Apr 2010 | B2 |
8028448 | Amrani | Oct 2011 | B2 |
8599097 | Intravatola | Dec 2013 | B2 |
8651492 | Cappuccio | Feb 2014 | B1 |
20070191148 | Shannon | Aug 2007 | A1 |
20220288475 | Le Cunff | Sep 2022 | A1 |
Number | Date | Country |
---|---|---|
107281723 | Oct 2017 | CN |
209475507 | Oct 2019 | CN |
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Number | Date | Country | |
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20230279689 A1 | Sep 2023 | US | |
20230407664 A9 | Dec 2023 | US |
Number | Date | Country | |
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63157915 | Mar 2021 | US |