Automatically erectable decorative tree
An automatically erectable decorative Christmas tree having a base, a telescoping center pole, a vertical array of curvilinear elements of graduated diameter supported from the top of the telescoping center pole by a plurality of circumferentially spaced tethers with the diameter of the curvilinear elements graduating in inverse proportion to the distance above the base; a plurality of circumferentially spaced branches pivotally connected to the curvilinear elements and extending radially outward from the curvilinear elements; and an electrically powered drive mechanism that is controllable by a user to selectively raise and lower the telescoping center pole. The subject tree can also be pre-lighted and pre-decorated. An automatically erectable support structure suitable for use as a tree stand and other applications is also disclosed.
1. Field of the Invention
This invention relates to artificial trees and, more particularly, to an automatically erectable, decorative Christmas tree that is shipped and stored in a relatively flat configuration and is quickly and easily expanded by an electric motor into an erect configuration. The subject tree can also be pre-lighted and pre-decorated.
2. Description of Related Art
Many different types of artificial decorative trees are disclosed in the prior art. Some are supported by a center pole that is either segmented or telescoping so as to be collapsible. Some have branches that plug into sockets disposed on collars attached to the center pole. Some have vertically spaced rings in graduated diameters that are supported from the top with tethers or stringers to maintain desired spacing. Some have simulated branches made in a spiral configuration. Some have branches or sub-branches that are loosely pivotally-connected to support members. Some are pre-lighted or otherwise decorated. Such prior-art trees are disclosed, for example, in U.S. Pat. Nos. 3,677,867; 4,748,058; 4,968,541; 5,106,661; 5,413,825; 6,132,063; 6,379,021; and 6,458,435. U.S. Pat. No. 6,247,991 discloses an electrically powered, dynamic, collapsible and revolving toy tree.
Notwithstanding the many and various types of artificial trees previously disclosed, a decorative tree is needed that can be shipped and stored in a relatively flat configuration, and then automatically erected to almost full height within a very short period with little effort by the user.
SUMMARY OF THE INVENTIONAn artificial tree is disclosed that has a base, a telescoping center pole, and a plurality of radially extending branches that are pivotally connected to a vertical array of curvilinear elements of graduated diameter, which curvilinear elements are supported from the top of the telescoping center pole. The curvilinear elements can take the form of a plurality of discrete, vertically spaced, single or double rings, or a spiral frame extending continuously downward from the top of the telescoping center pole to a point at or slightly above the base. The diameter of the curvilinear elements, defined herein as twice the radial distance between any point on a curvilinear element and the center pole, plus the diameter of the center pole at that height, desirably decreases at increasing heights above the base to promote a generally conical, Christmas-tree-like appearance. The lengths of the pivotally connected branches also desirably decreases at increasing heights above the base of the erected tree.
The subject tree will ship and store with branches attached in a box having a relatively flat configuration, preferably 20 inches or less in height for a six to eight foot tree. Upon removal from the box at the use site, the tree can be quickly and easily expanded to its full telescoping height by plugging a power cord into a conventional wall outlet and operating a single switch to activate the electrical drive mechanism for the center pole. Optionally, the tree can be made with a single top section that is connectable to the top of the telescoping center pole. The subject tree can also be pre-lighted and pre-decorated if desired. Additionally, a novel, automatically telescoping support structure is disclosed that can have applications other than for use with decorative trees.
BRIEF DESCRIPTION OF THE DRAWINGSThe apparatus of the invention is further described and explained in relation to the following drawings, wherein:
One preferred embodiment of automatically erectable tree 10 of the invention is further described in relation to
Referring to
Each ring assembly 20 preferably further comprises two concentric rings with a plurality of circumferentially spaced, radially extending spokes 26 connecting outer ring 22 and inner ring 24 in fixed positional relation to each other. Each branch preferably comprises one end 32 that is pivotally connected to inner ring 24 in such manner that branch 30 can rotate slightly upward when center pole 14 is collapsed to the position shown in
Referring to
Another preferred embodiment of the invention is disclosed in simplified form in relation to
Although the preferred embodiments of the invention described in relation to
A preferred construction for a base and telescoping center pole suitable for use in the automatically erectable, artificial trees of the invention is further described and explained in relation to
The internal structure and operation of tree stand 110 are more particularly described and explained in relation to
The upward travel of middle section 126 relative to lower section 124 is limited by the length of shaft 146, which will desirably comprise a transversely extending pin, nut, or other readily available, similarly effective obstruction (not shown) at a desired height near its upper end to prevent middle section 126 from either rotating off the end of shaft 146 or from traveling so far out of lower section 124 that it can no longer provide stable support for upper section 128. Any such obstruction must, however, be such that upper section 128 can slide upwardly over shaft 146 as middle section 126 moves up the shaft. Alternatively, the outside wall of middle section 126 can be provided with a vertical keyway that extends from its top to a point near its bottom, and lower section 124 can be provided with an inwardly facing projection that travels along the vertical keyway as middle section 126 rises relative to lower section 124. Further upward movement of middle section 126 inside lower section 124 will then be stopped when a shoulder at the lower end of the vertical keyway contacts the inwardly facing projection. Generally cylindrical upper section 128 desirably slidably engages both shaft 146 and the inside of middle section 126.
Upper section 128 of telescoping center pole 114 desirably moves upward relative to middle section 126 as middle section 126 simultaneously rises inside lower section 124. According to a preferred embodiment of the invention, upper section 128 is drawn upwardly by tension exerted along tension lines 132 as middle section 126 rises inside lower section 124. Tension lines 132 are preferably pinned to lower section 124 at a plurality of circumferentially spaced connection points 134 and to lower end 137 of upper section 128 at circumferentially space connection points 152. At least two diametrically opposed tension lines 132 are needed, with three or four evenly spaced lines being most preferred. The upward range of travel of upper section 128 is limited by the length of tension lines 132, but is also desirably limited by annular outside shoulder 136 (visible in
Still another embodiment of the invention is described and explained in relation to
Referring to
Materials used for constructing the artificial trees of the invention can vary, and will typically include both metallic and polymeric materials, depending upon the particular element and its intended use. The materials of construction are desirably sufficiently durable to permit repeated use but not so expensive as to make the resultant trees unaffordable for widespread use by a variety of consumers.
It should be understood that the apparatus of the invention is not limited to the preferred drive mechanism described herein for selectively raising and lowering the center pole, and any other similarly suitable drive mechanism can likewise be used. Thus, for example, drive mechanisms utilizing gears or other means can be substituted for combination screw drive/ tensioning line system disclosed above. Also, it will be apparent upon reading the disclosure that the automatically erectable trees disclosed herein can be pre-decorated with garland, bows, ornaments, or the like, in addition to lights if desired. Furthermore, it will be appreciated that the ring assemblies, rings, spiral frames, top support rings, and branches of the subject trees can themselves be wrapped in or covered with materials that will better simulate natural trees if desired.
Other alterations and modifications of the invention will likewise become apparent to those of ordinary skill in the art upon reading this specification in view of the accompanying drawings, and it is intended that the scope of the invention disclosed herein be limited only by the broadest interpretation of the appended claims to which the inventors are legally entitled.
Claims
1. An artificial tree comprising:
- a base;
- a telescoping center pole supported vertically by the base;
- a plurality of curvilinear elements of graduated diameter supported from the top of the telescoping center pole by a plurality of circumferentially spaced tethers, the diameter of the curvilinear elements graduating in inverse proportion to the distance above the base;
- a plurality of circumferentially spaced branches pivotally connected to the curvilinear elements and extending radially therefrom; and
- an electrically powered drive mechanism that is controllable by a user to selectively raise and lower the telescoping center pole.
2. The artificial tree of claim 1 wherein the curvilinear elements are vertically spaced rings.
3. The artificial tree of claim 1 wherein the curvilinear elements are part of a spiral frame.
4. The artificial tree of claim 2, further comprising a top tree section attachable to the top of the telescoping center pole.
5. The artificial tree of claim 4 wherein the top tree section comprises a center pole member and a plurality of circumferentially spaced branches connected to the center pole member.
6. The artificial tree of claim 3 wherein each branch comprises at least one lighting element.
7 The artificial tree of claim 5 wherein each branch of the tree and each branch of the top tree section comprises at least one lighting element.
8. The artificial tree of claim 7 comprising an electrical connection between the lighting elements of the tree and the lighting elements of the top tree section.
9. The artificial tree of claim 1 wherein the drive mechanism comprises an electric motor and a shaft that is rotatable by the motor to raise and lower the telescoping center pole.
10. The artificial tree of claim 9 wherein the shaft has a threaded section.
11. The artificial tree of claim 1 comprising a control panel having at least one switch that is operable by a user to selectively raise and lower the telescoping center pole.
12. The artificial tree of claim 1 comprising a control panel having at least one switch that is operable by a user to selectively activate and deactivate the lighting element.
13. An artificial tree comprising:
- a base;
- a telescoping center pole supported vertically by the base;
- a plurality of ring assemblies of graduated diameter supported from the top of the telescoping center pole by a plurality of circumferentially spaced tethers;
- a plurality of circumferentially spaced branches pivotally connected to each ring assembly and extending radially therefrom; and
- an electrically powered drive mechanism that is controllable by a user to selectively raise and lower the telescoping center pole.
14. The artificial tree of claim 13, further comprising a top tree section attachable to the top of the telescoping center pole.
15. The artificial tree of claim 14 wherein the top tree section comprises a center pole member and a plurality of circumferentially spaced branches connected to the center pole member.
16. The artificial tree of claim 13 wherein each branch comprises at least one lighting element.
17. The artificial tree of claim 14 wherein each branch of the tree and each branch of the top tree section comprises at least one lighting element.
18. The artificial tree of claim 17 comprising an electrical connection between the lighting elements of the tree and the lighting elements of the top tree section.
19. The artificial tree of claim 13 wherein each ring assembly further comprises two concentric rings maintained in fixed relation to each other by a plurality of radially extending spokes disposed between the two rings, the two concentric rings comprising an inner ring and an outer ring.
20. The artificial tree of claim 19 wherein each branch is pivotally connected to an inner ring of a ring assembly.
21. The artificial tree of claim 20 wherein each branch is pivotable downwardly into a resting position against the outer ring connected to the inner ring to which the branch is pivotally connected.
22. The artificial tree of claim 13 wherein the drive mechanism comprises an electric motor and a shaft that is rotatable by the motor to raise and lower the telescoping center pole.
23. The artificial tree of claim 22 wherein the shaft has a threaded section.
24. The artificial tree of claim 13 comprising a control panel having at least one switch that is operable by a user to selectively raise and lower the telescoping center pole.
25. The artificial tree of claim 16 comprising a control panel having at least one switch that is operable by a user to selectively activate and deactivate the lighting element.
26. An artificial tree comprising:
- a base;
- a telescoping center pole supported vertically by the base;
- a plurality of rings of graduated diameter supported from the top of the telescoping center pole by a plurality of circumferentially spaced tethers;
- a plurality of circumferentially spaced branches pivotally connected to each ring and extending radially therefrom; and
- an electrically powered drive mechanism that is controllable by a user to selectively raise and lower the telescoping center pole.
27. The artificial tree of claim 26, further comprising a top tree section attachable to the top of the telescoping center pole.
28. The artificial tree of claim 27 wherein the top tree section comprises a center pole member and a plurality of circumferentially spaced branches connected to the center pole member.
29. The artificial tree of claim 26 wherein each branch comprises at least one lighting element.
30. The artificial tree of claim 27 wherein each branch of the tree and each branch of the top tree section comprises at least one lighting element.
31. The artificial tree of claim 30 comprising an electrical connection between the lighting elements of the tree and the lighting elements of the top tree section.
32. The artificial tree of claim 26, further comprising at least one flexible branch tether that limits downward movement of each pivotally connected branch around the ring to which it is pivotally connected.
33. The artificial tree of claim 32 wherein the branch tethers are supported from an elevation near the top of the telescoping center pole.
34. The artificial tree of claim 26 wherein the drive mechanism comprises an electric motor and a shaft that is rotatable by the motor to raise and lower the telescoping center pole.
35. The artificial tree of claim 34 wherein the shaft has a threaded section.
36. The artificial tree of claim 26 comprising a control panel having at least one switch that is operable by a user to selectively raise and lower the telescoping center pole.
37. The artificial tree of claim 29 comprising a control panel having at least one switch that is operable by a user to selectively activate and deactivate the lighting element.
38. An artificial tree comprising:
- a base;
- a telescoping center pole supported vertically by the base;
- a spiral frame supported from the top of the telescoping center pole by a plurality of circumferentially spaced tethers, the spiral frame having a gradually increasing diameter in the downward direction;
- a plurality of circumferentially spaced branches pivotally connected to the spiral frame and extending radially therefrom; and
- an electrically powered drive mechanism that is controllable by a user to selectively raise and lower the telescoping center pole.
39. The artificial tree of claim 38 wherein each branch comprises at least one lighting element.
40. The artificial tree of claim 38 wherein the drive mechanism comprises an electric motor and a shaft that is rotatable by the motor to raise and lower the telescoping center pole.
41. The artificial tree of claim 40 wherein the shaft has a threaded section.
42. The artificial tree of claim 38 comprising a control panel having at least one switch that is operable by a user to selectively raise and lower the telescoping center pole.
43. The artificial tree of claim 38 comprising a control panel having at least one switch that is operable by a user to selectively activate and deactivate the lighting element.
44. An automatically erectable support structure comprising:
- a base;
- a plurality of telescoping tubular members comprising a first member that is disposed in fixed relation to the base and at least one other member that can telescope upwardly from the first member;
- a vertical shaft rotatably mounted inside the base and extending upwardly from the base; and
- an electric motor selectively providing rotational motion to the vertical shaft in one of two rotational directions;
- the vertical shaft further comprising a threaded upper portion cooperatively engaged with at least one other tubular member to elevate the at least one other member relative to the first tubular member when the shaft is rotated in a first rotational direction and to lower the at least one other member relative to the first tubular member when the shaft is rotated in the second rotational direction.
45. The support structure of claim 44 comprising at least second and third tubular members telescoping upwardly from the first tubular member.
46. The support structure of claim 45 wherein the third tubular member telescopes upwardly from the second tubular member.
46. The support structure of claim 46, further comprising a tension line having a first end connected to the first tubular member and a second end connected to the third tubular member.
47. The support structure of claim 44 comprising a tension line having a first end connected in fixed relation to the base and a second end connected in fixed relation to a tubular member other than the first tubular member.
48. The support structure of claim 44, further comprising at least one switch controlling the rotational direction.
Type: Application
Filed: Sep 3, 2003
Publication Date: Mar 3, 2005
Inventors: Lonnie Gary (Ransom Canyon, TX), Stephen Fillipp (Lubbock, TX), Sheng-Chien Wang (ShenGang Township)
Application Number: 10/654,170