Neck for stringed instrument

Abstract

Stringed instrument, especially the guitar with flexible connection of the upper part of the heel of the neck below the fingerboard to the fixing block in the body of the instrument, whereby the lower free end of the heel of the neck is coupled to a fixing block in the body of a stringed instrument through the rod via a rectification element which dilates in reaction to atmospheric humidity changes.

Claims

1. Stringed instrument (1), with flexible connection of the upper part (3) of the heel (4) of the neck (2) below the fingerboard (5) to the fixing block (6) in the body of the instrument (1), wherein the lower free end of the heel (4) of the neck (2) is coupled to the fixing block (6) in the body of the stringed instrument (1) through a rod (10) via a rectification element (11), which reacts with atmospheric humidity that is the cause of dilatation.

2. Stringed instrument (1) according to the claim 1, wherein the rectification element (11) is made of wood.

3. Stringed instrument (1) according to the claim 1, wherein the body of the wooden rectification element (11) has its longitudinal rings (12) arranged transversely to the rod (10).

4. Stringed instrument (1) according to the claim 1, wherein the body of the wooden rectification element (11) is in the form of a cylindrical, conical or other similar spatial geometrical figure.

5. Stringed instrument (1) according to the claim 1, wherein the heel (4) of the neck (2) provided with a reinforcing element (13) for a rigid cross connection with the rod (10).

6. Stringed instrument (1) according to the claim 1, wherein the rod (10) comprises the screw (15) that is provided on the side of the rectifying element (11) with an enlarged head (14) with a handling recess.

7. Stringed instrument (1) according to the claim 1, wherein the rod (10) comprises a threaded run-out of the screw (15) with a threaded extension (20), while the amount of the displacement in the fixing block (6) in the body at a stringed-instrument (1) is limited.

Description

DESCRIPTION OF THE DRAWINGS

(1) Further advantages and effects of the present invention are apparent from the accompanying drawings, where:

(2) FIG. 1 Longitudinal sectional view of a variant configuration of the flexible connection of the upper neck part of the stringed instrument to the fixing block in the stringed instrument body, showing the connection of the lower free end of the neck heel with the fixing block through the rod via a rectification element, which reacts with atmospheric humidity that is the cause of dilatation.

(3) FIG. 2 Longitudinal section of the flexible connection of the upper neck part of the stringed instrument to the fixing block in the body of the stringed instrument by means of at least partly flexible plate, showing a variant embodiment of the rectification rod element.

EXAMPLES OF THE VERSIONS OF THE INVENTION

(4) The stringed instrument L particularly a guitar with automatic rectification of the neck 2 characterized in that the exemplary embodiment outlined in FIG. 1 is provided with flexible connection of the upper part 3 of the heel 4 of the neck 2 below the fingerboard said upper part 3 being fitted to the fixing block 6 in the instrument body 1, for example through a supporting transversal line A using a transversal pin, not shown here, or by simple leaning against the projections 7 on the fork 8 of the fixing block 6 by applying strips of a flexible adhesive or tape, etc., so that to obtain the dilatation gap 9 between the front of the fixing block 6 and the heel 4 of the neck 2.

(5) The lower free end of the heel 4 of the neck 2 is coupled to the fixing block 6 in the body of the stringed instrument 1 through the rod 10 through the rectification element 11 with atmospheric humidity that is the cause of dilatation, and said element 11 is according to the embodiment made of wood.

(6) To achieve the appropriate effect of the wooden rectification element 11 it is of advantage, due to absorbency, that it has its longitudinal rings 12 arranged transversely to the rod 10.

(7) To obtain various performance ranges of the wooden rectification element 11 it can be created in the form of cylindrical, conical or other similar spatial geometrical figure, with adaptation to the types of stringed instruments 1 and to their known deformation factors in considering the type of wood from which it is made.

(8) From the point of view of strength it is advantageous that the heel 4 of the neck 2 is provided with the reinforcing element 13, for example in the form of a cylindrical shaft made of light alloy or tough wood etc., for rigid cross connection with the rod 10.

(9) For basic and additional tuning of the rectification neck 2 of the stringed instrument 1 it is advantageous that the rod 10 is made for example in the form of a screw 15 that is provided on the side of the rectifying element 11 with an enlarged cylindrical head 14 with a handling recess, which may be accessed through a not depicted hole in the top plate 16 of a stringed instrument 1.

(10) Swelling or shrinkage of the dimension B of the rectifying element 11 resulting from changes in ambient relative humidity and consecutive movement action of the rod 10 on the lower end of the heel 4 cause automatic variations in inclination of the end of the heel 4 together with the neck 2 as indicated by arrows in the figure, induce systematic maintaining of an appropriate fretboard, or distance of the stringfield, here not shown, from frets 17 on the fingerboard 5 of the neck 2.

(11) Variable arrangement of the rectification of the neck 2 as shown in FIG. 2 applicable for various types of stringed instruments 1 may lie in the fact that the supporting transversal line A is transferred to the elastic head plate 19 that is partly flexible in the longitudinal direction and provided with the transversal shoulder 18, which is firmly attached to both the upper end of the shortened fixing block 6 as well as to the underside of the extended part of the neck 2. In adapting height, position, or other modification of the shoulder 18 on the elastic head plate A it is possible to create the structure of the neck 2 with the body of the fixing block 6, where at least between the face of this fixing block 6 and the heel 4 of the neck 2 arises an expansion space 9 for activities of the rectifying element 11.

(12) The same figure indicates an adaptation of the rod 10 whereby said rod consists of a threaded run-out of the screw 15 with a threaded extension 20 while the amount of the displacement in the fixing block 6 in the body of a stringed instrument 1 is limited. The threaded extension 20 is bolted together with a reinforcing element 13. This arrangement of the rod 10 prevents the danger of separating of the neck 2 after an uncontrollable removal of all strings from the body of the stringed instrument 1 or that it did not happen during a possible exchange of the rectifying element 11 and the like.