Modular jewelry system

Abstract

The invention involves a modular jewelry system and method for constructing a modular jewelry system. The system includes a base having a bore, the side wall of the bore including a groove having a slight helix. The helix includes a small protrusion beyond which the helix flattens and the slot ends. A charm, stone or the like, has an outwardly extending stem; the stem including at least one outwardly extending tab. The tab is sized to cooperate with the groove, so that the stem is pulled into the bore as the stem is rotated until passing the protrusion, whereby the stem is locked into position in the bore.

Claims

1. A modular jewelry system for securing a charm with a stem to a base structure comprising: a base, said base having a bore, said bore including a side wall and a bottom wall, said side wall including a groove defined by a flat upper surface, an inner side surface and a helical bottom surface extending partially around and along said side wall, said helical bottom surface having a protuberance at a distal end of the helical bottom surface, the protuberance terminates at an end to transition the groove into a wider radial groove with a radial bottom surface extending past said protuberance, said stem having a first end and a second end, said first end having an outer diameter sized and shaped to fit within said bore of said base, said stem including a tab extending outwardly from said outer diameter, said tab sized to slidably fit within said groove, so that as said stem is rotated, a top surface of said tab follows said flat upper surface of said groove into said base, said tab passing said end of said protuberance providing resistance to said tab to hold said tab in position within said groove.

2. The modular jewelry system of claim 1, wherein said second end of said stem includes a decorative form constructed from the same material as said second end of said stem, said second end having sufficient length to extend outward from a front surface of said base.

3. The modular jewelry system of claim 2, wherein said decorative form of said second end of said stem extends radially outward from said stem forming a shoulder, the shoulder abutting a top surface of the base to prevent vertical movement of the stem within the base.

4. The modular jewelry system of claim 3, wherein the shoulder, the stem and the tab cooperate to prevent tipping of the stem with respect to the base.

5. The modular jewelry system of claim 2, wherein said second end of said stem includes a stone mount for securing a gemstone to said second end of said stem.

6. The modular jewelry system of claim 1, wherein said stem includes two or more said tabs and said base includes two or more said grooves, said tabs and said grooves positioned radially about a longitudinal centerline of said stem, said tabs and said grooves aligned to slidably cooperate with each other.

7. The modular jewelry system of claim 6, wherein at least one of said tabs and said grooves are positioned at different heights with respect to said longitudinal centerline of said stem.

8. The modular jewelry system of claim 1, wherein each said tab extends about five degrees of the radial circumference of a circle formed by an outer diameter of said tab.

9. The modular jewelry system of claim 1, wherein each said tab extends about ten degrees of the radial circumference of a circle formed by an outer diameter of said tab.

10. The modular jewelry system of claim 1, wherein each said tab extends less than thirty degrees of the radial circumference of a circle formed by an outer diameter of said tab.

11. The modular jewelry system of claim 1, wherein each said tab extends less than forty-five degrees of the radial circumference of a circle formed by an outer diameter of said tab.

12. A modular jewelry system for securing a charm with a stem to a base structure comprising: a base, said base having a bore, said bore including a side wall and a bottom wall, said side wall including at least two grooves positioned at different heights with respect to each other, each groove extending partially around and along the side wall, each groove defined by a flat upper surface, an inner side surface and a helical bottom surface, each said helical bottom surface having a protuberance at a distal end of the helical bottom surface, the protuberance terminates at an end to transition the groove into a wider radial groove with a radial bottom surface extending past said protuberance, said stem having a first end and a second end, the first end having an outer diameter sized and shaped to fit within the bore of the base, the stem including at least two tabs extending outwardly from the outer diameter, each tab positioned at a different height along the length of the stem corresponding to the grooves, each tab sized to slidably fit within a respective groove so that as the stem is rotated, a top surface of each said tab follows the respective said flat upper surface of the respective said groove into said base, at least one of the tabs passing an end of one of said protruberances providing resistance to said tab to hold said tab in position within said groove to hold the stem in position with respect to the base.

Description

BRIEF DESCRIPTION OF THE FIGURES

(1) FIG. 1 is a top perspective view of one embodiment of the present invention;

(2) FIG. 2 is a side view of the embodiment shown in FIG. 1;

(3) FIG. 3 is a bottom view of the embodiment shown in FIG. 1;

(4) FIG. 4 is a side view, partially in section, taken along line 4-4 of FIG. 3;

(5) FIG. 5 is a side view, partially in section, taken along line 5-5 of FIG. 3;

(6) FIG. 6 is a side view of the embodiment illustrated in FIG. 1; and

(7) FIG. 7 is a top view of the embodiment illustrated in FIG. 1.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(8) While the present invention is susceptible of embodiment in various forms, there is shown in the drawings and will hereinafter be described a presently preferred embodiment with the understanding that the present disclosure is to be considered an exemplification of the invention and is not intended to limit the invention to the specific embodiments illustrated.

(9) Referring generally to FIGS. 1-7, a modular jewelry system 10 for allowing a jewelry user to change and customize a piece of jewelry is illustrated. The system includes a base 12, and a stem 14. The base 12 has a bore 16; the bore having a side wall 18 and a bottom wall 20. The side wall 18 is preferably cylindrical in shape, including a helical groove 22 extending partially around and along the side wall 18; the helical groove 22 including a small protuberance 24, with the helical groove 22 extending past the protuberance 24.

(10) The stem 14 has a first end 26 and a second end 28; the first end 26 having an outer diameter 30 sized and shaped to fit within the bore 16 of the base 12. The stem 14 includes at least one, and more preferably, two or more, tabs 32 extending outwardly from the outer diameter 30. The tab(s) 32 are sized to slidably fit within the helical groove(s) 22 so that, as the stem 14 is rotated, the tab(s) follow the helical groove 22 into the base 12 until the tab(s) pass the protuberance 24. The protuberance 24 provides resistance to the tab 32 passing to hold the stem in position within the helical groove 22 and thus the base 12. In this manner, vibration and normal forces applied to the stem 14 through a charm or other decorative form 34 are prevented from causing the release of the stem 14 from the base 12. The protuberance may extend into the groove 22 from any desired angle suitable to provide the resistance needed to prevent the stem from becoming inadvertently dislodged. The assembly may also include a spring in the form of a coil spring, leaf spring, or Bellville washer spring (not shown) positioned between the first end of the stem and the bottom wall of the base 12 to provide a force between the two members to provide additional resistance to the stem being removed from the base. Removal would require the user to press the stem further into the base and rotate the stem past the protuberance to remove the stem from the case. The decorative form 34 may be constructed from the same material as said second end 28 of said stem 14, or from a different material or materials. The decorative form, while illustrated as a flower, may take any desired form without departing from the scope of the invention. The stem 14 preferably includes sufficient length to extend outward from a front surface 36 of the base 12. In the preferred embodiment, the decorative form 34 is constructed from a precious metal such as gold or platinum.

(11) The decorative form 34 may extend radially as desired, as long as the interface between the stem 14 and the base 12 is sufficient to prevent the inadvertent dislodgement of the stem 14 from the base 12. Gem mounts 38, and the like, may be secured to the decorative form 34 or directly to the stem 14 without departing from the scope of the invention. The gem mounts 38 may be constructed as upstanding posts 40, or any other suitable stone mount known in the art of jewelry. It should also be noted that other non-precious metals or materials that are suitable for jewelry construction may be utilized without departing from the scope of the invention.

(12) In at least one embodiment, the stem 14 includes two or more tabs 32, and the base 12 includes two or more helical grooves 22, the tabs 32 and grooves 22 positioned radially about a longitudinal centerline 42 of the stem 14, so that the tabs 32 and the helical grooves 22 are aligned to slidably cooperate with each other. The tabs 32 and grooves 22 are preferably equidistantly spaced with respect to each other. However, any spacing that is suitable may be utilized without departing from the scope of the invention. In at least one embodiment, at least one of the tabs 32 and the helical grooves 22 are positioned at different heights with respect to the longitudinal centerline 42 of the stem 14. This construction provides additional resistance to the stem 14 becoming dislodged from the base 12, and prevents the stem 14 from be pulled to one side of the base 12 by external forces during use.

(13) The tabs 32 preferably extend about five degrees of the radial circumference of a circle formed by the outer diameter of the tab 32. However, in other embodiments, the tab 32 may extend anywhere from the five degrees to forty-five degrees of the radial circumference of a circle formed by the outer diameter of the tab 32 without departing from the scope of the invention. It should also be noted that in at least one embodiment, the helical groove 22 becomes a radial groove 46 after the protuberance 24. This construction allows a shoulder 44 to be formed at the second end 28 of the stem 14. The shoulder 44 can then abut a top surface 36 of the base 12. This construction provides additional support to the stem 14, and prevents the stem 14 from being tipped or forced to one side of the base 12. The base 12 may include loops 48, pins or clasps (not shown), and may be secured to a broach, ring, necklace or any other suitable means to secure the base to a person or their clothing without departing from the scope of the invention.

(14) It is to be understood that while a certain form of the invention is illustrated, it is not to be limited to the specific form or arrangement herein described and shown. It will be apparent to those skilled in the art that various changes may be made without departing from the scope of the invention, and the invention is not to be considered limited to what is shown and described in the specification and any drawings/figures included herein.

(15) One skilled in the art will readily appreciate that the present invention is well adapted to carry out the objectives and obtain the ends and advantages mentioned, as well as those inherent therein. The embodiments, methods, procedures and techniques described herein are presently representative of the preferred embodiments, are intended to be exemplary, and are not intended as limitations on the scope. Changes therein and other uses will occur to those skilled in the art which are encompassed within the spirit of the invention and are defined by the scope of the appended claims. Although the invention has been described in connection with specific preferred embodiments, it should be understood that the invention as claimed should not be unduly limited to such specific embodiments. Indeed, various modifications of the described modes for carrying out the invention, which are obvious to those skilled in the art, are intended to be within the scope of the following claims.