Musical comb

Abstract

A personal grooming device a body defining a grasping surface defining an outer portion and an inner portion, as well as groups of members extending directly from the inner portion at varying depth so that the members are capable of playing a musical note or notes.

Claims

1. A personal grooming device usable to comb hair or play notes of a musical composition, comprising: a body having a grasping surface defining an outer portion and an inner portion of the body, the inner portion having a varied contour; and a plurality of spaced members each extending directly from the inner portion to a terminal portion, the terminal portions of all members being collinear and the length of each member being defined by the local contour of the inner portion from which it extends, wherein: the members are arranged in successive groups, each group configured to play a single note of the musical composition, each of at least two of the groups has a plurality of equally spaced members of equal length that collectively play that group's respective note for a duration proportional to the number of members in that group by plucking all the members of that group consecutively in one continuous stroke, and the groups of members are separated by gaps wider than the spacing between the members of each group, the gaps yielding pauses between adjacent musical notes during play.

2. The personal grooming device of claim 1, wherein: the members are in a straight-line arrangement.

3. The personal grooming device of claim 2, wherein: the lengths of the members correspond to relative frequencies of the respective musical notes.

4. A personal grooming device usable to comb hair or play notes of a musical composition, comprising: a body having a grasping portion; and a straight-line arrangement of spaced teeth extending from the body to respective terminal portions that are collinear, wherein: the teeth are arranged in successive groups, each group configured to play a single note of the musical composition, each of at least two of the groups has a plurality of equally spaced teeth of equal length that collectively play that group's respective note for a duration proportional to the number of teeth in that group by plucking all the teeth of that group consecutively in one continuous stroke, the groups of teeth are separated by gaps wider than the spacing between the teeth of each group, the gaps yielding pauses between adjacent musical notes during play, and the length of the teeth of at least one group differs from the length of the teeth of at least one other group.

5. The personal grooming device of claim 4, wherein: the lengths of the teeth correspond to relative frequencies of the respective musical notes.

6. The personal grooming device of claim 5, wherein: the lengths of the teeth of at least two groups differ in accordance with a varied contour of a body surface from which the teeth extend.

7. The personal grooming device of claim 5, wherein: the length of the teeth of each successively adjacent group of teeth is based on a frequency corresponding to the length of the teeth of a respective preceding group of teeth.

8. The personal grooming device of claim 5, wherein: the lengths of the teeth correspond to a contour of a body surface from which the teeth extend.

9. The personal grooming device of claim 8, wherein: the grasping portion includes an outer surface of the body, and the body surface from which the teeth extend is an inner surface opposite the outer surface of the body.

10. The personal grooming device of claim 9, wherein: the contour of the inner surface of the body is varied.

11. The personal grooming device of claim 4, wherein: the lengths of the teeth of at least two groups differ in accordance with a varied contour of a body surface from which the teeth extend.

12. The personal grooming device of claim 4, wherein: the body is expansible.

13. A musical comb usable to comb hair or play notes of a musical composition, comprising: a graspable body including a base having a varied contour including at least one peak adjacent to at least one valley; and a straight-line arrangement of spaced teeth extending from the base to terminal portions that are collinear, wherein: the teeth are arranged in at least two groups: a first group of teeth extending from a peak and a second group of teeth extending from a valley, the first group has a plurality of equally spaced first teeth of equal length that collectively play the first group's note for a duration proportional to the number of first teeth by plucking all the first teeth consecutively in one continuous stroke, and the second group has a plurality of equally spaced second teeth of equal length that collectively play the second group's note for a duration proportional to the number of second teeth by plucking all the second teeth consecutively in one continuous stroke.

14. The musical comb of claim 13, wherein: the first group of teeth and the second group of teeth are separated by a gap wider than the spacing between the teeth of each group.

15. The musical comb of claim 13, wherein: the lengths of the teeth correspond to relative frequencies of the respective musical notes.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a front and side elevational view illustrating an example of a personal grooming device accomplishing dual functions, and namely personal grooming as well as relay of information such as music.

(2) FIG. 2 is a front perspective view of the personal grooming device of FIG. 1.

(3) FIG. 3 is a front perspective view of the personal grooming device of FIG. 1 illustrating a manner of playing music.

(4) FIG. 4A is an example illustration of correspondence between the personal grooming device of FIG. 1 and a song to be played using the device.

(5) FIG. 4B is an example chart diagram corresponding to FIG. 4A.

(6) FIG. 5 is a front perspective view of the personal grooming device of FIG. 1 illustrating expansability thereof.

(7) Throughout the drawings and the detailed description, unless otherwise described, the same drawing reference numerals will be understood to refer to the same elements, features, and structures. The relative size and depiction of these elements may be exaggerated for clarity, illustration, and convenience.

DETAILED DESCRIPTION

(8) The following description is provided to assist the reader in gaining a comprehensive understanding of the methods, apparatuses, and/or systems described herein. Accordingly, various changes, modifications, and equivalents of the methods, apparatuses, and/or systems described herein may be suggested to those of ordinary skill in the art. Also, descriptions of well-known functions and constructions may be omitted for increased clarity and conciseness.

(9) FIG. 1 illustrates an example of a personal grooming device 10 accomplishing dual functions, and namely personal grooming as well as relay of information such as music.

(10) As shown therein, the device 10 is optionally formed as a comb and includes a body 12 defining an outer portion 14 and an inner portion 16 providing a grasping surface 18 therebetween which a user may grasp, as a handle, when using the device 10 to either comb hair or play music. The inner portion 16 provides a base 20 from which members such as comb teeth 22 directly extend. As is also shown, the teeth 22 are aligned at their terminal portions 24 distal to their direct connection to the base 20 so as to be collinear. That is, the terminal portions 24 extend along a row, and more particularly, touch an imaginary line i connecting opposing ends 26, 28 of outer portion 14.

(11) As will be appreciated from the illustrated arrangement of teeth 22 shown in FIGS. 1 and 2, such teeth 22 are arranged in groups A-H, whereby the groups A-H of teeth 22 each enable playing of a musical note upon movement of the teeth 22 of a particular group, as discussed hereinafter. Each of the teeth 22 belonging to groups A-H are, as shown, equally spaced from each other and contemplated to be of a height or length l corresponding to a relative frequency of a note to be played upon movement of teeth 22 within a particular group of teeth 22. Separating each of the shown groups A-H of teeth 22 are gaps 30 which enable a user of the device 10 to play a particular note in isolation by plucking only a particular group A-H of teeth 22. The gaps 30 also permit a user time to hear, and thus perceive, separation between notes of music which describe a particular tune or song. In other words, the gaps 30 enable a user to have pause and transition period from one note to a successive note to be played. Accordingly, it will be understood that the spaced length 32 of the gap 30 is a function of the spacing between the musical notes to be played and may be determined arbitrarily in accordance with the length of device 10.

(12) As shown with reference to FIGS. 2, 4A and 4B, the length l of teeth 22 of each of the groups of teeth 22 determines the relative frequency for a given musical note, as discussed below. Thus, in order to preserve the combing function and identity of the device 10 as a comb whereby the terminal portions 24 of teeth 22 are collinear, the base 20 from which the teeth extend is provided with a variable contour 34. This contour 34 provides, optionally, a variable depth of the grasping surface 18 so as to define peaks 36 and valleys 38 of the base 20 relative to the terminal portions 24 of the teeth 22. Thus, lengths l of teeth 22 of a given group of teeth 22 may be optionally sized so as to be distanced from the contour 34 according to their required, relative frequency by tailoring the contour 34 of the base 20 to accommodate the aforementioned collinearity.

(13) With further reference to FIG. 2, each group A-H of teeth 22 is shown to include several teeth 22, though it is contemplated that a group of teeth may, as an example, have a single tooth 22. As such, when playing the device 10 to relay a desired tune or song, the tooth 22, a group of teeth 22 or all of the groups A-H of teeth 22 may be played by plucking the teeth 22. As an example, a user of the device 10 may simply play the musical notes of the groups A-H by moving his or her finger along the terminal portions 24 of the teeth 22 in the direction of arrow X, as shown in FIG. 3. When doing so, it is contemplated that the user will appreciate a familiarity of a played note corresponding to a group of teeth 22 due to the gaps 30 between groups A-H of teeth 22. The duration of a given note corresponding to a particular group of teeth 22 corresponds to the number of teeth 22 within a grouping thereof so as to define the duration in musical beats, as discussed below.

(14) Frequency and Duration

(15) To recognize a tune, the human ear does not need to hear the exact frequency and duration of notes. Rather, perception of the relative frequencies and durations of notes of a tune or song is the essential component for recognizing a familiarity of a reproduction of the tune or song. Maintenance of these relative frequencies and durations enable the music to be scaled to different keys.

(16) Referring again to FIG. 2, frequency of a particular note is, as discussed, determined by a length l of teeth 22 for a particular group thereof. As also discussed, relative frequencies between notes must be maintained, such that for a first note, a ratio of a known, corresponding frequency, f.sub.n, and thus a known, predetermined length, L.sub.n, to a successive frequency, f.sub.n+1, must be maintained; whereby a length l of teeth 22 for the corresponding, successively adjacent group of teeth 22 necessary to play its corresponding note may be calculated in accordance with Equation (1) below, assuming a tooth 22 of the device 10 represents a cantilevered beam and f.sub.1 and f.sub.2 represent examples of successively adjacent frequencies.

(17) $\begin{array}{cc}{f}_1/f_2=\left({}_1/2\right)/\left({}_2/2\right)={}_1/{}_2=\frac{\sqrt{\mathrm{EI}/m_1{L}_1^4}}{\sqrt{\mathrm{EI}/m_2{L}_2^4}},& \mathrm{Equation}\left(1\right)\end{array}$
where frequency (f) measured in (Hz) is related to circular frequency by f=/2 (where is the circular natural frequency given by 1.875.sup.2 (EI/mL.sup.4).sup.1/2, E is the modulus of rigidity of the tooth material, m is the mass of the tooth, I is the moment of inertia of the tooth cross-section, and L is the length of the tooth. As will be understood, the differences in masses relative to the lengths to the fourth power may be considered to be negligible such that the masses may be considered to be the same.
Thus, with the above ratio of relative frequencies, the equation to obtain successive lengths of teeth 22 for groups of teeth 22 along the device 10 may be reduced to Equation (2), shown below.
L.sub.2=L.sub.1{square root over (f.sub.2/f.sub.1)}Equation (2):

(18) With their relative lengths being determined in accordance with the above, a duration of each of the notes respectively assigned to the groups A-H of teeth 22 is determined, optionally, in accordance with a predetermined number of teeth 22 corresponding to a beat, which will be understood, is a measure of the aforementioned duration. For instance, if a given note is intended to last a duration of two (2) beats, and a beat is predetermined to be represented by four (4) teeth, the number of teeth 22 corresponding to the two (2) beat duration is eight (8) teeth.

(19) In view of the above, it is thus further contemplated that, as illustrated in FIG. 5, the device 10 may, optionally, be expansible whereby at least one of outer portion ends 26, 28 is removed to accommodate a further base portion 40 (having teeth 22 thereof omitted for clarity of illustration). As shown, base portion 40 includes a further outer end portion 42 and adjoins base portion 20 along overlapping guide rails 44, 46 fixedly connected therebetween in any known manner such as by soldering, screw-attachment or gluing. As such, whether the device 10 is expansible or not, it is further contemplated that a musical chord may optionally be played.

(20) As an example, the device 10 as described hereinabove may be made in accordance with methods such as 3D printing and injection molding. As another example, the device 10 herein may made using any method producing the same in finished form from metal, plastic or any hybrid of metal and plastic.

(21) A working example of the personal grooming device is illustrated in FIGS. 4A and 4B. Therein, a tune from the well-known wedding song, Here Comes the Bride, is illustrated along with a representative selection of sheet music having the indicated, Note No., indicated parenthetically thereat. Correspondence between the device 10 and the tune is shown so as to relate assignment of particular notes to groups A-H of teeth 22, together with their respective frequencies as determined by the length of teeth 22 within those groups A-H. More specifically, with the quarter note, G4, as reference Note 1 having a standard frequency of 391.995 Hz and duration of 1 beat corresponding to four (4) teeth, and each group A-H of teeth 22 assigned a respective note number, successive lengths of teeth 22 for successively adjacent notes may be calculated in accordance with the frequency of the preceding note in the tune. Furthermore, since, as shown, four (4) teeth were predetermined to carry the duration of one (1) beat of Note 1, musical Note four (4), in contrast and corresponding to half note C5, with a duration of two (2) beats, is shown as being assigned eight (8) teeth.

(22) A number of examples have been described above. Nevertheless, it will be understood that various modifications may be made. For example, suitable results may be achieved if the described techniques are performed by a different calculation and/or if components in a described device are combined in a different manner and/or replaced or supplemented by other components or their equivalents. Accordingly, other implementations are within the scope of the following claims.