Button fretboard assembly for an instrument

• US 10,482,852 B2
• Filed: 02/19/2019
• Issued: 11/19/2019
• Est. Priority Date: 04/05/2018
• Status: Active Grant

• Current Assignee: William L. Douglas
• Original Assignee: William L. Douglas
• Inventors: Douglas, William L.
• Primary Examiner(s): Qin, Jianchun
• Application Number:
  US16/280,030
• Publication Number:
  US 20190311698A1
• Time in Patent Office: 273 Days
• Field of Search: 84314 N
• CPC Class Codes: G10D 3/08 Fingerboards in the form of keyboards

Abstract

An assembly for an instrument includes a fretboard having a width, a length, a top surface, frets projecting from the top surface and spaced apart along the length, strings arranged above the top surface across the width, and recesses formed into the fretboard between the frets and below the strings. A button is carried in each recess for reciprocal movement along an axis between a raised position and a depressed position. In the depressed position, the button is in contact with one of the strings and depresses the one of the strings against a proximate fret. In the raised position, the button is out of contact with the one of the strings.

Claims

1. An assembly for an instrument, the assembly comprising:

a fretboard having a width, a length, a top surface, frets projecting from the top surface and spaced apart along the length, strings arranged above the top surface across the width, and recesses formed into the fretboard between the frets and below the strings;

a button is carried in each recess for reciprocal movement along an axis between a raised position and a depressed position, wherein the button has a hole formed transversely through the button, and one of the strings is passed through the hole;

in the depressed position, the button is in contact with the one of the strings and depresses the one of the strings against a proximate fret; and

in the raised position, the button is out of contact with the one of the strings.

2. The assembly of claim 1, wherein:

the recess includes a cavity and a peripheral slot in communication with the cavity;

the button has a body and a finger extending from the body; and

the body of the button is received in the cavity, and the finger of the button is received in the slot, wherein the slot limits movement of the button in directions other than along the axis.

3. The assembly of claim 1, wherein the button is biased toward the raised position.

4. The assembly of claim 1, wherein:

the button has a top and a bottom, and a post projecting from the bottom; and

a spring is captured on the post and disposed in the recess between a bottom of the recess and the bottom of the button.

5. The assembly of claim 1, wherein the hole has a cylindrical inner surface.

6. The assembly of claim 1, wherein the hole has a quasi-cylindrical inner surface and a flat upper surface.

7. An assembly for an instrument, the assembly comprising:

a fretboard having a width, a length, a top surface, frets projecting from the top surface and spaced apart along the length, and strings arranged above the top surface across the width;

between adjacent frets, recesses formed into the fretboard below the strings;

in each of the recesses between adjacent frets, a button is carried for reciprocal movement between a raised position and a depressed position, wherein the button has a hole formed transversely through the button, and one of the strings is passed through the hole;

in the depressed position, the button is in contact with the one of the strings and depresses the one of the strings against a proximate fret; and

in the raised position, the button is out of contact with the one of the strings.

8. The assembly of claim 7, wherein:

the recess includes a cavity and a peripheral slot in communication with the cavity;

the button has a body and a finger extending from the body; and

the body of the button is received in the cavity, and the finger of the button is received in the slot, wherein the slot limits movement of the button in directions other than along the axis.

9. The assembly of claim 7, wherein the button is biased toward the raised position.

10. The assembly of claim 7, wherein:

the button has a top and a bottom, and a post projecting from the bottom; and

a spring is captured on the post and disposed in the recess between a bottom of the recess and the bottom of the button.

11. The assembly of claim 7, wherein the hole has a cylindrical inner surface.

12. The assembly of claim 7, wherein the hole has a quasi-cylindrical inner surface and a flat upper surface.

13. An assembly for an instrument, the assembly comprising:

a fretboard having a width, a length, a top surface, frets projecting from the top surface and spaced apart along the length, strings arranged above the top surface across the width, and recesses formed into the fretboard between the frets and below the strings, wherein the recesses include a cavity and a peripheral slot in communication with the cavity;

a button is carried in each recess for reciprocal movement between a raised position and a depressed position, the button having a body and a finger extending from the body, wherein the button has a hole formed transversely through the button, and one of the strings is passed through the hole;

in the depressed position, the button is in contact with the one of the strings and depresses the one of the strings against a proximate fret;

in the raised position, the button is out of contact with the one of the strings; and

the body of the button is received in the cavity, the finger of the button is received in the slot, and the slot limits movement of the button in directions other than along the axis during movement between the depressed and raised positions.

14. The assembly of claim 13, wherein the button is biased toward the raised position.

15. The assembly of claim 13, wherein:

the button has a top and a bottom, and a post projecting from the bottom; and

a spring is captured on the post and disposed in the recess between a bottom of the recess and the bottom of the button.

16. The assembly of claim 13, wherein the hole has a cylindrical inner surface.

17. The assembly of claim 13, wherein the hole has a quasi-cylindrical inner surface and a flat upper surface.