Abstract:
A multiple string tuning peg for a stringed musical instrument capable of independently tuning at least two strings. It minimizes the amount of clutter at the top end of a stringed instrument and maximizes the use of the mechanical gearing assemblies by sharing mechanical components. A single thumb twist can be physically manipulated to operated the multiple string winding mechanisms.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    The present invention relates to a extremely new tuning peg assembly for a stringed instrument adapted to provide the luthier or stringed instrument craftsman the tools needed to design a completely new design for the top end of the instrument. 
         [0002]    Guitars, mandolins, banjos, ukeleles, etc have utilized single tuning pegs since their inception. This has drawbacks in that it requires one tuning peg assembly to be incorporated onto the top end of each stringed instrument for each string that the instrument has. This has forced each of the stringed instruments to look essentially the same. Even the non musically inclined will agree that each 12 string guitar (aside from color) looks strikingly similar to all other 12 string guitars. The upper and lower bouts, bridges, neck and frets have very limited ranges of physical placement and configurations. Heretofore, the placement and design of single string tuning peg assemblies have also been extremely limited. As such the luthier has limited range of physical configurations that they can incorporate into their instrument design. 
         [0003]    Henceforth, a multiple string tuning peg assembly would fulfill a long felt need in the stringed instrument industry. With proper marketing these new designs could be the “in look” for modern stringed instruments, uncluttering the instrument&#39;s top end and changing the look. This new invention utilizes and combines known and new technologies in a unique and novel configuration to overcome the aforementioned problems and accomplish this. 
       SUMMARY OF THE INVENTION 
       [0004]    The general purpose of the present invention, which will be described subsequently in greater detail, is to provide a stringed instrument tuning peg design that will not change the quality of music from the instrument yet will allow a plethora of new designs to stringed instruments. It has many of the advantages mentioned heretofore and many novel features that result in a new stringed instrument tanning peg which is not anticipated, rendered obvious, suggested, or even implied by any of the prior art, either alone or in any combination thereof. 
         [0005]    In accordance with the invention, an object of the present invention is to provide an improved multiple string tuning peg capable of allowing individual string tuning with a minimum of mechanical parts. 
         [0006]    It is another object of this invention to provide an improved string tuning peg system that minimizes the amount of space required to install on a stringed instrument. 
         [0007]    It is a further object of this invention to provide a tuning system for stringed instruments that will allow instrument makers to employ visually new design in guitars and other stringed instruments. 
         [0008]    It is still a further object of this invention to provide for a system that allows for the tuning of multiple strings utilizing many of the same mechanical components and eliminating others through common usage of components. 
         [0009]    It is yet a further object of this invention to provide a compact system for tuning stringed instruments that operates in a fashion common to musicians. 
         [0010]    The subject matter of the present invention is particularly pointed out and distinctly claimed in the concluding portion of this specification. However, both the organization and method of operation, together with further advantages and objects thereof, may best be understood by reference to the following description taken in connection with accompanying drawings wherein like reference characters refer to like elements. Other objects, features and aspects of the present invention are discussed in greater detail below. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0011]      FIG. 1  is a front perspective view of the multiple string tuning peg showing the general arrangement of all components; 
           [0012]      FIG. 2  is a top view of the multiple string tuning peg; 
           [0013]      FIG. 3  is a bottom view of the multiple string tuning peg; 
           [0014]      FIG. 4  is a rear side view of the multiple string tuning peg; 
           [0015]      FIG. 5  is a front side view of the multiple string tuning peg engaged for operation of the outer peg; 
           [0016]      FIG. 6  is a right side view of the multiple string tuning peg; 
           [0017]      FIG. 7  is a left side view of the multiple string tuning peg; 
           [0018]      FIG. 8  is a front cross sectional view of the multiple string tuning peg engaged for the operation of the outer peg; 
           [0019]      FIG. 9  is a front cross sectional view of the multiple string tuning peg engaged for the operation of the inner peg; 
           [0020]      FIG. 10  is a back perspective view of the multiple string tuning peg; and 
           [0021]      FIG. 11  is a rear side view of the multiple string tuning peg engaged for operation of the inner peg. 
       
    
    
     DETAILED DESCRIPTION 
       [0022]    There has thus been outlined, rather broadly, the more important features of the invention in order that the detailed description thereof that follows may be better understood and in order that the present contribution to the art may be better appreciated. There are, of course, additional features of the invention that will be described hereinafter and which will form the subject matter of the claims appended hereto. 
         [0023]    In this respect, before explaining at least one embodiment of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and to the arrangements of the components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced and carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein are for the purpose of descriptions and should not be regarded as limiting. 
         [0024]    Looking at  FIG. 1  it can be seen that the multi string tuning device  2  is made up of the following six interconnected components: the support frame  4 , a tuning peg key  6 , first and second tuning pegs  8 / 10  and first and second winding assemblies  26 / 28 . 
         [0025]    Looking at  FIGS. 1 ,  10  and  11  it can be seen that support frame  4  has two parallel side plates  48  and  50  held in their parallel positions by a perpendicular central plate  52 . The central plate  52  has a first orifice formed therethrough that rotatably houses the second tuning peg  10 . Second tuning peg  10  is the inner peg of the key two tuning peg assembly. Each side plate has upper, intermediate and lower orifices formed therethrough. The upper orifices rotatably house the first winding assembly  26 . The lower orifices rotatably house the second winding assembly. The intermediate orifices rotatably and slidably house the tuning peg key  6 . The support frame  4  is designed to both house all of the components of the multi string tuning device  2  and serve as the attachment means to the musical instrument. There is a plethora of plates, threaded recesses and adapting fixtures that may be mechanically affixed to said support frame  4  depending upon the musical instrument that it is to be used with. The mounting for a piano would be different from the mounting on a harp, guitar or banjo. The specific means of mounting a multi stringed tuning device  2  would be well known in the field of constructing musical instruments and is not addressed herein. 
         [0026]    First tuning peg  8  resides about the second tuning peg  10  such that they are nestled together and share a common axis of rotation. The first tuning peg  8  is shorter along its linear axis than the second tuning peg  10  such that the second tuning peg  10  extends beyond the distal and proximate ends of the first tuning peg  8 . The second tuning peg has a second worm wheel gear  44  attached at its proximate end that resides below a lower face of said central plate  52 . The first tuning peg has a first worm wheel gear  42  attached at its proximate end that resides above an upper face of said central plate  52 . (See  FIG. 4 .) Although not illustrated, a friction reducing surface treatment may be utilized on the interface surfaces between the first tuning peg  8  and the second tuning peg  10 . This may be a liquid or solid treatment or optionally one or both of these pegs may be made of a low friction material. 
         [0027]    Looking at  FIGS. 8 and 9  it can be seen that the first tuning peg  8  has a first grooved string winding region  16  formed thereon and a string retention post  14  that extends therefrom to ensnare the musical instrument&#39;s first string for tuning. The second tuning peg  10  has a second grooved string winding region  18  that has a string retention orifice formed therethrough to ensnare the musical instrument&#39;s second string for tuning. It is to be noted that the second tuning peg  10  is rotatable housed within an accommodatingly sized orifice formed in the central plate  52  and it cannot come free from the support frame  4  because of the physical interference between the second worm wheel gear  44  and the hole in the central plate. The first tuning peg  8  is kept in its position about the second tuning peg  10  because of the physical interference between the second tuning peg  10  and the first worm wheel gear  44 . 
         [0028]    Looking at  FIGS. 2 and 5  it can be seen that the first winding assembly  26  is a first cylindrical shaft  30  with a first worm gear  34  rigidly affixed about its central region and a first spur gear  38  rigidly affixed about its distal end. 
         [0029]    Looking at  FIGS. 3 and 5  it can be seen that second winding assembly  28  is a second cylindrical shaft  32  with a second worm gear  36  rigidly affixed about its central region and a second spur gear rigidly affixed about its distal end. These first and second winding assemblies are substantially identical however they are mounted in their respective upper and lower orifices such that their spur gears reside adjacent different side plates of the support frame  4 . (See  FIGS. 6 and 7 .) 
         [0030]    It is to be noted that while depicted as straight cut gears, the spur gears  38 / 40 , and pinion gears  22 / 24  may be of a different physical design. 
         [0031]    The winding assemblies&#39; respective worm gears  42 / 44  meshingly engage the worm wheel gears  34 / 36  on the first and second tuning pegs  8 / 10  so as to translate rotational motion of the winding assemblies in one axis to rotational motion of the tuning pegs  8 / 10  in a second, perpendicular axis. Essentially, they change horizontal rotational motion into vertical rotational motion or vice versa. 
         [0032]    Looking at  FIGS. 4 and 5  the physical design of the tuning peg key  6  can best be seen. The tuning peg key  6  is made of a third cylindrical shaft  20  with a thumb twist  46  rigidly affixed to its proximate end and a outboard pinion gear  24  rigidly affixed to its distal end. There is an inboard pinion gear  22  rigidly affixed to the third cylindrical shaft  20  between a side plate of the support frame  4  and the thumb twist  46 . The third cylindrical shaft is longer than both the first and second cylindrical shafts of the winding assemblies. The tuning peg key  6  is both rotatably and slidingly housed in the intermediate orifice of the support frame  4 . It is to be noted that the axes of rotation of the tuning peg key  6  and the first winding assembly  26  and the second winding assembly  28  all lie in a common plane. It is the sliding ability of the tuning peg key  6  that allows its outboard pinion gear  24  to independently engage and operate (drive) the second spur gear  40  or allows its inboard pinion gear  22  to independently engage and operate (drive) the first spur gear  38 . Note, that there can only be one spur gear  38 / 40  rotatably enmeshed with one of the pinion gears  22 / 24  at any time. 
         [0033]    The operation of the multi stringed tuning device  2  can best be seen with reference to  FIGS. 8 and 9 . In  FIG. 8  the tuning peg key  6  is horizontally slid such that its inboard pinion gear  22  engages first spur gear  38  on the first winding assembly  26 . Twisting the thumb twist  46  on the tuning peg key  6  in a clockwise direction as indicated rotates the inboard pinion gear  22  clockwise, the first spur gear  38  and first worm gear  34  of the first winding assembly  26  counterclockwise, and the first worm wheel gear  44  of the first tuning peg  8  counterclockwise. Since the first worm wheel gear  44  is rigidly attached about the tuning peg, with a first string wrapped around post  14  the first string will wrap around the first tuning peg  8  in the first winding groove  16  and tighten the first string, Loosening the first string will require the counterclockwise rotation of the tuning peg key  6 . The tension exerted by the first string back on the first tuning peg  8  is insufficient to overcome the torque needed to rotate the first worm gear  34  through the first worm wheel gear  44 . 
         [0034]    In  FIG. 9  the tuning peg key  6  is horizontally slid such that its inboard pinion gear  22  no longer engages spur gear  38  on the first winding assembly  26 . But rather such that its outboard pinion gear  24  engages second spur gear  40  on the second winding assembly  28 . Twisting the thumb twist  46  on the tuning peg key  6  in a clockwise direction as indicated rotates the outboard pinion gear  24  clockwise, the second spur gear  40  and second worm gear  36  of the second winding assembly  28  counterclockwise, and the second worm wheel gear  46  of the second tuning peg  10  counterclockwise. Since the second worm wheel gear  46  is rigidly attached about the second tuning peg, with a second string inserted through orifice  12  the second string will wrap around the second tuning peg  10  in the second winding groove  18  and tighten the second string, Loosening a string will require the counterclockwise rotation of the tuning peg key  6 . Similarly, the tension exerted by the second string back on the second tuning peg  10  is insufficient to overcome the torque needed to rotate the second worm gear  36  through the second worm wheel gear  46 . 
         [0035]    Although depicted with worm gears as the primary tensioning mechanism it is well known in the art that there are other gearing arrangements that could also be modified to cooperate in a fashion similar that illustrated herein. 
         [0036]    The above description will enable any person skilled in the art to make and use this invention. It also sets forth the best modes for carrying out this invention. There are numerous variations and modifications thereof that will also remain readily apparent to others skilled in the art, now that the general principles of the present invention have been disclosed. As such, those skilled in the art will appreciate that the conception, upon which this disclosure is based, may readily be utilized as a basis for the designing of other structures, methods and systems for carrying out the several purposes of the present invention. It is important, therefore, that the claims be regarded as including such equivalent constructions insofar as they do not depart from the spirit and scope of the present invention.