Support stands for longitudinal objects, and in particular, support stands for Christmas trees, posts, poles, and similar objects.
A variety of stands for Christmas trees have been produced over the many centuries of the Christmas tree tradition. Some of the key requirements and/or attributes of a Christmas tree stand are as follows:
In spite of the efforts of many individuals to provide a satisfactory Christmas tree stand, there remains a need for a stand that has these attributes, and that can be provided at a relatively low cost.
In accordance with the present disclosure, the problem of supporting a Christmas tree is solved by a Christmas tree stand comprising a supporting base, a positioning sphere, and a compression collar. The supporting base is comprised of an annular cavity surrounding an upwardly facing hemispherical socket. The annular cavity is bounded by an outer side wall including an upper threaded portion. The positioning sphere includes an outer spherical surface and a cavity for receiving a trunk of the tree. The compression collar is comprised an outer threaded wall engageable with the upper threaded portion of the supporting base, and a first flange contactable with an upper portion of the outer spherical surface of the positioning sphere. When the positioning sphere is disposed in the hemispherical socket, and the compression collar is maximally threadably engaged with the supporting base, the flange of the compression collar is contacted with the outer spherical surface of the positioning sphere and immobilizes the sphere in the socket. In that manner, a tree to which the stand is fitted may be secured in a desired straight upright position.
In certain embodiments, the positioning sphere may be comprised of a plurality of external fins including external edges that define the outer spherical surface of the sphere. The positioning sphere may further include a plurality of ports formed radially around the sphere, each of the ports disposed between adjacent fins of the sphere. In such embodiments, the tree stand may further comprise a plurality of screws fittable into the ports through a side wall forming the cavity of the positioning sphere. The screws may be driven into the trunk of the tree to secure the positioning sphere to the tree.
In certain embodiments, the upwardly facing hemispherical socket of the supporting base may be comprised of a plurality of spherically surfaced cups extending beneath the annular cavity of the supporting base. In embodiments in which the positioning sphere is comprised of a plurality of external fins with external edges that define the outer spherical surface of the sphere, adjacent pairs of spherically surfaced cups of the supporting base may form first passageways extending from the annular cavity to the external fins of the positioning sphere, and the positioning sphere may be comprised of second passageways extending between adjacent pairs of fins through a side wall forming the cavity of the positioning sphere. The first passageways may be in communication with the second passageways, such that water for hydration of the tree may be delivered from the annular cavity to the trunk of the tree, which is disposed in the cavity of the positioning sphere.
In certain embodiments, the compression collar of the tree stand may be formed as a cylindrical disc including a plurality of spokes extending from an inner region of the disc to an outer region of the disc. In certain embodiments, the annular cavity of the supporting base may be at least partially formed by outer side wall of the supporting base, and the outer spherical surface of the positioning sphere. In certain embodiments, the supporting base may include a plurality of radially extending feet.
In certain embodiments, the positioning sphere of the tree stand may be comprised of a lag bolt embedded in a bottom wall of the cavity and comprising a threaded shank extending into the cavity. Alternatively or additionally, the tree stand may further comprise a plurality of wedges disposable between the trunk of the tree and a side wall of the cavity of the positioning sphere. The wedges may each include a curvilinear ramp surface engageable with an upper edge of the side wall of the cavity of the positioning sphere. The wedges may each include a ramp surface with a plurality of engagement features, such as angled steps or notches. The wedges may each include a tree engagement surface with a plurality of engagement features, such as teeth or pegs. The wedges may each include a spike protruding diagonally from a tree engagement surface.
The present disclosure will be provided with reference to the following drawings, in which like numerals refer to like elements, and in which:
The present invention will be described in connection with certain preferred embodiments. However, it is to be understood that there is no intent to limit the invention to the embodiment described. On the contrary, the intent is to cover all alternatives, modifications, and equivalents as may be included within the spirit and scope of the invention as defined by the appended claims.
For a general understanding of the present invention, reference is made to the drawings. In the drawings, like reference numerals have been used throughout to designate identical elements. In the following disclosure, the present invention is described in the context of its use as a tree stand. However, it is not to be construed as being limited only to use in supporting cut trees, such as Christmas trees. The invention is adaptable to any use in which adjustable support is desirable to be provided for a longitudinal object such as a post or pole. Additionally, the description identifies certain components with the adjectives “top,” “upper,” “bottom,” “lower,” “left,” “right,” etc. These adjectives are provided in the context of use of the stand for supporting a tree vertically, and in the context of the orientation of the drawings. The description is not to be construed as limiting the stand to use in a particular spatial orientation. The instant stand may be used in orientations other than those shown and described herein.
The structure and use of the present Christmas tree stand will now be described with reference to
When the positioning sphere 50 is disposed in the hemispherical socket 24, and the compression collar 80 is maximally threadably engaged with the supporting base 20, the flange 84 of the compression collar 80 is contacted with the outer spherical surface 52 of the positioning sphere 50 and immobilizes the sphere 50 in the socket.
Referring in particular to
Referring again to
The compression collar 80 may then be unscrewed slightly from the base 20 to allow further adjustment of the position of the sphere 50 within the socket 24 as indicated by bidirectional arrows 99, and therefore, adjustment of the vertical position of the trunk 4 of the tree 2. The position of the tree 2 is adjusted as indicated by arrows 98 (which may be as needed in any horizontal direction other than the drawing plane of
Other aspects of the instant tree stand will now be described.
In certain embodiments, the positioning sphere 50 may be comprised of a plurality of external fins 60 including external edges 62 that define the outer spherical surface 52 of the sphere. In the embodiment depicted in
The positioning sphere 50 may further include a plurality of ports 70, formed radially around the sphere 50. The ports 70 may be disposed between adjacent fins 64 of the sphere 50. As described previously, in such embodiments, the tree stand 10 may further comprise a plurality of screws 59 fittable into the ports 70 through a side wall 68 forming the cavity 54 of the positioning sphere 50. The radial screws 59 and the base screw 58 may be driven into the trunk 4 of the tree 2 to secure the positioning sphere 50 to the tree 2. It is noted that by virtue of the adjustability of the position of the sphere 50 within the hemispherical socket 24 of the supporting base 20, the positioning sphere 50 does not need to be fitted to the trunk 4 of the tree 2 with a high level of precision. Unlike the depiction in
In certain embodiments, the upwardly facing hemispherical socket 24 of the supporting base 20 may be comprised of a plurality of spherically surfaced cups 30 extending beneath the annular cavity 22 of the supporting base 20. In embodiments in which the positioning sphere 50 is comprised of a plurality of external fins 60 with external edges 62 that define the outer spherical surface 52 of the sphere 50, adjacent pairs of spherically surfaced cups 30 of the supporting base may form first passageways 32 between them, which extend from the annular cavity 22 to the external fins 60 of the positioning sphere 50, and beneath the sphere 50. Additionally, the positioning sphere 50 may be comprised of second passageways 72 extending between adjacent pairs of fins 60 through the side wall 68 forming the cavity 54 of the positioning sphere 50. The first passageways 32 may be in communication with the second passageways 72, such that water for hydration of the tree may be delivered from the annular cavity 22 to the trunk 4 of the tree 2, which is disposed in the cavity 54 of the positioning sphere 50. The positioning sphere 50 may be provided with third passageways (not shown) that extend through the bottom wall 74 of the sphere 50.
In certain embodiments, the compression collar 80 of the tree stand may be formed as a cylindrical disc including a plurality of spokes 86 extending from an inner region 88 of the disc to an outer region 90 of the disc. Openings 92 are formed between interspersed between adjacent pairs of spokes 86. These multiple openings 92 are advantageous, in that they provide locations for a user (not shown) of the stand 10 to add water to the annular cavity 22 of the stand 10 for hydration of the tree 2, from any point on the floor (not shown) around the stand 10, without needing to remove any part of the stand 10. Additionally, the openings 92 provide very firm gripping locations for a user to engage his/her fingers, and tighten the compression collar 80 very tightly with the supporting base 20, thereby securing the sphere 50 and the tree 2 in the desired final position.
In certain embodiments, the annular cavity 22 of the supporting base 20 is at least partially formed by outer side wall 26 of the supporting base 20, and the outer spherical surface 52 and/or other exterior portions of the positioning sphere 50.
In certain embodiments, the compression collar 80 may be further comprised of a second flange 85 that is contactable with the upper portion 56 of the outer spherical surface 52 of the positioning sphere 50. In an alternative embodiment depicted in
In certain embodiments, the supporting base may be provided with a plurality of radially extending feet 34. The Applicant has found that such radially extending feet 34 are beneficial when tightening the compression collar 80 onto the positioning sphere 50 to immobilize the sphere 50 and the tree 2 (
Referring to
The positioning sphere 50 of the stand 10 may be made of metal or a hard plastic, such as a polyimide, or a composite material, such as glass fiber reinforced polyester, or a carbon fiber composite. The base 20 and compression collar 80 may be made of plastic or metal, such as stainless steel, aluminum, or carbon steel, preferably painted or powder coated to prevent rust. A plastic base 20 may be molded as a single piece. The flanges 84 and 85 or flange 87 that contact the sphere 50 may be made of a high friction plastic such as polyurethane, or have a high friction coating such as a rubber or polyurethane, in order to have even stronger friction when tightened against the sphere 50.
In general, the stand 10 may be provided with combinations of materials depending upon various considerations, including manufacturing cost and appeal to a particular consumer. Lower cost versions may be made mainly of plastic, while a higher cost version appealing to higher income consumers may be made of stainless steel or an attractive colored anodized aluminum. The stand 10 may be provided with more than one positioning sphere 50, with the spheres having different sized cavities 54 for receiving different sized tree trunks 4. Alternatively a single sphere 50 may be provided with removable inserts of different cavity sizes or wedge-shaped spacers to accommodate different sized tree trunks 4.
Such alternative embodiments of a tree stand 11 with such wedge shaped spacers, or wedges, will now be described with reference to
Referring to
As a next step in installing the positioning sphere 51, a plurality of wedges 100 are forced into the gap 53 between the tree trunk 4 and the side wall 68 of the cavity 54 of the positioning sphere 51. Preferably, at least three wedges 100 are used, spaced at about 120 degree intervals around the tree trunk, although spacing may vary to accommodate small branches protruding from the tree trunk 4. In the embodiment depicted in
It can be seen from
Referring to
Referring to
Referring to
It will be apparent that other embodiments of wedges, with alternative combinations of the features of wedges 100A-100D may be provided to serve the same purpose. Additionally, in an alternative embodiment, the embedded lag screw 71 may be provided with a much longer and thicker shank 75, extending upwardly proximate to the upper edge 77 of the side wall 68 of the cavity 54 of the positioning sphere 51, such that the engagement of threaded shank 75 alone is sufficient to rigidly secure the positioning sphere 51 to the tree trunk 4, without the need for the wedges 100.
It is, therefore, apparent that there has been provided, in accordance with the present invention, a support stand for a Christmas tree. Having thus described the basic concept of the invention, it will be rather apparent to those skilled in the art that the foregoing detailed disclosure is intended to be presented by way of example only, and is not limiting. Various alterations, improvements, and modifications will occur and are intended to those skilled in the art, though not expressly stated herein. These alterations, improvements, and modifications are intended to be suggested hereby, and are within the spirit and scope of the invention. Additionally, the recited order of processing elements or sequences, or the use of numbers, letters, or other designations therefore, is not intended to limit the claimed processes to any order except as may be specified in the claims.
This application is a continuation of copending U.S. patent application Ser. No. 15/655,921, filed on Jul. 21, 2017, which claims the benefit of U.S. Provisional Patent Application No. 62/366,079 filed Jul. 24, 2016, the disclosures of which are incorporated herein by reference. The above benefit/priority claims are being made in an Application Data Sheet submitted herewith in accordance with 37 C.F.R. 1.76 (b)(5) and 37 C.F.R. 1.78. This application is also related to commonly owned U.S. patent application Ser. No. 15/193,064 filed Jun. 26, 2016, which is a continuation of commonly owned U.S. patent application Ser. No. 13/691,771, filed on Dec. 1, 2012, and issued as U.S. Pat. No. 9,375,109 on Jun. 28, 2016, which claims priority from U.S. Provisional Patent Application No. 61/565,597 filed Dec. 1, 2011, the disclosures of which are incorporated herein by reference.
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Office Action in U.S. Appl. No. 13/691,771 dated Apr. 2, 2015; EFS file name 20190424_16-252748_IDS_NPL_Cite1. |
Office Action in U.S. Appl. No. 13/691,771 dated Nov. 30, 2015; EFS file name 20190424_16-252748_IDS_NPL_Cite2. |
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Office Action in U.S. Appl. No. 15/193,064 dated Jul. 19, 2017; EFS file name 20190424_16-252748_IDS_NPL_Cite4. |
Office Action in U.S. Appl. No. 15/193,064 dated Jan. 23, 2018; EFS file name 20190424_16-252748_IDS_NPL_Cite5. |
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Number | Date | Country | |
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20190150649 A1 | May 2019 | US |
Number | Date | Country | |
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62366079 | Jul 2016 | US |
Number | Date | Country | |
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Parent | 15655921 | Jul 2017 | US |
Child | 16252748 | US |