CN107680566B

CN107680566B - Sliding arm type tone changing clamp for stringed musical instrument

Info

Publication number: CN107680566B
Application number: CN201610624525.1A
Authority: CN
Inventors: 王龙江
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-02
Filing date: 2016-08-02
Publication date: 2024-05-07
Anticipated expiration: 2036-08-02
Also published as: CN107680566A

Abstract

The invention discloses a sliding arm type tone changing clamp for a stringed instrument, which is characterized in that: comprises a tone changing clamp main body, a retainer and a middle arm. The whole structure of the tone changing clamp main body is 7-shaped, the tone changing clamp main body comprises a branch I and a branch II, and the branch I and the branch II are surrounded to form a semi-surrounding area S. And the branch I is provided with a through hole I and a through hole II. And the through hole II is close to the junction of the branch I and the branch II. The retainer includes a spring, a handle, and a slider arm. One end of the handle is provided with a threaded hole. The spring is sleeved on the sliding arm. The top of arm link to each other with branch I through-hole I, the bottom of arm links to each other with the handle through the screw hole. The handle is perpendicular to the slide arm. The middle arm is hinged on the tone changing clamp main body through a through hole II. The middle arm is located within the semi-enclosed region S.

Description

Sliding arm type tone changing clamp for stringed musical instrument

Technical Field

The present invention relates to a commonly used auxiliary tool for stringed musical instruments, and in particular to a capo device that can selectively alter the tone of a guitar, banjo or similar instrument.

Background

A capo (capo), also known as a capo (capo cejilla), is a common device for stringed instruments, such as guitars, you-cri, straddles or banjos, where the stringed instrument has a neck and a set of strings extending along the length of the neck. For example, a guitar, whose player can temporarily adjust the tone of the instrument through the tone-shifting clip device.

In use, the capo is used to clamp a string against one of a plurality of frets provided along the fingerboard surface at the neck of the instrument to reduce the effective length of the string and thereby adjust the pitch produced by the string. That is, the pitch increases as the effective length of the strings decreases, and the tune may be raised by the corresponding interval at the time of tuning. And simultaneously, the player can be liberated from hand to play the strings under the tone-changing clamp device.

When strings of different specifications are mounted on a stringed musical instrument according to different needs, the tension forces generated by the various strings are quite different, even for the same stringed musical instrument, at different positions of the neck thereof. When the force of the tone-changing clamp against the strings is too large, the strings pressed against the product column are bent and deformed towards the fingerboard direction, the original tension of the strings is changed, and accordingly, when the musical instrument is played, the tone of the strings generates a tone error. If the force of the tone-changing clamp against the strings is too small, the strings can generate buzzing noise because of not abutting against the product column in the process of playing the musical instrument, so that adverse effects are caused when playing the musical composition. Therefore, the tone changing clamp is required to accurately regulate and control clamping force in use, and the proper clamping force is applied according to different tension of strings.

The most representative types of tonal clips currently on the market are:

1. The principle of the elastic clamping type tone-changing clamp is that the rebound force of a compression spring or a torsion spring is utilized to directly press strings, and the clamping force generated by the spring is uncontrollable although the use is convenient, and the defect is that the force cannot be adjusted according to the requirement. The spring force of the tone-changing clamp is usually large, so that the condition that the strings cannot be clamped is prevented, the strings can be changed, and the neck of the musical instrument is easily damaged. When the clamp is taken up and taken down, the clamp can be opened with great force, and even the tone-changing clamp is ejected out by hands.

2. Screw-type capos of this type in the prior art typically require two hands to fit onto the instrument; and when the capo is not used and connected to the instrument, the respective legs are liable to swing and can freely rotate and rock, thereby preventing them from being conveniently assembled at the neck of the guitar; although the force for clamping strings can be adjusted by the tone-changing clamp, the adjusting process by the screw is quite complicated, and the side load on the adjusting screw increases the friction force on the screw thread, so that the adjustment is more difficult. It is also undesirable to use two hands when removing it or moving it into place.

Disclosure of Invention

The invention aims to solve the problems that in the prior art, a tone changing clamp cannot adjust force according to requirements, the tone changing clamp is difficult to install, a structural component is easy to swing in the installation process, and the like.

The technical scheme adopted for realizing the aim of the invention is that the sliding arm type tone changing clamp for the stringed musical instrument is characterized in that: comprises a tone changing clamp main body, a retainer and a middle arm.

The whole structure of the tone changing clamp main body is 7-shaped, the tone changing clamp main body comprises a branch I and a branch II, and the branch I and the branch II are surrounded to form a semi-surrounding area S.

And the branch I is provided with a through hole I and a through hole II. And the through hole II is close to the junction of the branch I and the branch II. The through hole I is close to the tail end of the branch I.

The retainer includes a spring, a handle, and a slider arm. The spring is sleeved on the sliding arm. The handle is provided with a threaded hole.

The top of arm link to each other with branch I through-hole I, the bottom of arm links to each other with the handle through the screw hole. The handle is perpendicular to the slide arm. The slide arm is located within the semi-enclosed region S.

The middle arm is hinged on the tone changing clamp main body through a through hole II. The middle arm is located within the semi-enclosed region S.

Further, the overall structure of the branch I is in two sections of continuous arcs, the circle centers of the two sections of arcs are located on different sides, and the circle centers of the arcs close to the junction of the branch I and the branch II are located in a semi-enclosed area S.

Further, the retainer further comprises a support handle, the overall structure of the support handle is L-shaped, the support handle is located in the semi-surrounding area S, and the support handle comprises an upper support and a right support.

The upper branch of the support handle is connected with the branch I, the right branch of the support handle is provided with a through hole IV, and the through hole IV and the through hole I are the same in size and symmetrical in position.

The sliding arm sequentially penetrates through the through hole I and the through hole IV from top to bottom and is connected with the handle through the threaded hole.

Further, a through hole V is formed in the right branch of the support handle, and one rolling bearing is connected with the support handle through the through hole V. The rolling bearing is in contact with the slide arm.

Further, threads are arranged at two ends of the sliding arm at the same time, a sliding arm cap is installed at one end, connected with the branch I, of the sliding arm, the sliding arm cap is screwed into the top end of the sliding arm, and the sliding arm cap is located outside the semi-surrounding area S.

Further, the inside of branch I is installed a plurality of antifriction bearing, antifriction bearing embedding through-hole I's inner wall, antifriction bearing contacts with the arm.

The axis of the rolling bearing is parallel and symmetrical with the axis of the through hole I.

Further, the locating head is installed at one end top that handle and arm link to each other, be provided with the threaded rod on the locating head, arm and the one end top that the arm links to each other is equipped with the screw hole that agrees with the threaded rod mutually.

The positioning head is propped against the middle arm. And a sliding groove is arranged at the contact position of the middle arm and the positioning head.

Further, the neck of the stringed instrument comprises a fingerboard and a back surface, wherein the surface of the fingerboard of the neck is provided with a plurality of protruding product columns extending transversely, and a plurality of strings extending longitudinally above the fingerboard and the product columns.

When the device is used, the middle arm and the branch II form a splint-shaped structure, the branch II is contacted with the surface of the cervical fingerboard, and the middle arm is contacted with the back of the cervical portion.

The spring is in a compressed state, and the middle arm is tightly propped by the positioning head on the handle.

And the positions of the middle arm and the branch II, which are contacted with the neck of the guitar, are provided with silica gel pads which are matched with the neck shape of the stringed musical instrument.

The technical effects of the invention are undoubtedly that the invention has the following advantages:

1) Can be easily installed and adjusted by only one hand;

2) In the installation process, the parts cannot swing freely to influence the installation;

3) The clamping force is not required to be adjusted by rotating the screw, so that the difficulty in adjustment caused by the fact that the side load on the screw increases the friction force on the screw thread is avoided;

4) The locking and the load of the tone changing clamp are normal, and the conditions of tone errors and the condition that the tone changing clamp is out of hand and popped up cannot occur to strings.

5) The compression spring on the tone-changing clamp does not directly provide clamping force, and the rebound force of the compression spring is small, so that the assembly and adjustment process is easy and convenient, and a good stabilizing effect can be achieved.

Drawings

FIG. 1 is a block diagram of the composition of a tone changing clip;

FIG. 2 is an application diagram of a tone clip;

FIG. 3 is an overall block diagram of a tone clip;

FIG. 4 is a multi-directional perspective view of a tone varying clip;

Fig. 5 is a multidirectional plan view of a capo.

In the figure: the tone changing clamp comprises a tone changing clamp main body 1, a branch I101, a through hole I1011, a through hole II 1012, a through hole VI 1013, a rolling bearing 1014, a through hole IV 1015, a through hole V1016, a branch II 102, a pin I1031, a pin II 1032, a pin III 1033, a retainer 2, a support handle 204, a spring 201, a handle 202, a threaded hole 2021, a positioning head 2022, a sliding arm 203, a sliding arm cap 2031, a middle arm 3, a silica gel pad 4, an arc-shaped silica gel pad 401 and a strip-shaped silica gel pad 402.

Detailed Description

The present invention is further described below with reference to examples, but it should not be construed that the scope of the above subject matter of the present invention is limited to the following examples. Various substitutions and alterations are made according to the ordinary skill and familiar means of the art without departing from the technical spirit of the invention, and all such substitutions and alterations are intended to be included in the scope of the invention.

As shown in fig. 1 to 5, a slider-type tone changing clip for a stringed instrument is characterized in that: comprises a tone changing clamp main body 1, a retainer 2 and a middle arm 3.

The whole structure of the tone changing clamp main body 1 is 7-shaped, the tone changing clamp main body 1 comprises a branch I101 and a branch II 102, and the branch I101 and the branch II 102 are surrounded to form a semi-surrounding area S.

The integral structure of the branch I101 is in two sections of continuous arcs, the circle centers of the two sections of arcs are located on different sides, and the circle center of the arc close to the junction of the branch I101 and the branch II 102 is located in a semi-enclosed area S.

And a through hole I1011 and a through hole II 1012 are formed in the branch I101. The through hole II 1012 is near the junction of the branch I101 and the branch II 102. The through hole I1011 is near the end of the branch I101.

Inside the branch i 101 is mounted a rolling bearing 1014, the rolling bearing 1014 being inserted into the through hole vi 1013 via a pin ii 1032, the rolling bearing 1014 being in contact with the sliding arm 203;

the axis of the rolling bearing 1014 is parallel and symmetrical to the axis of the through-hole i 1011.

The holder 2 comprises a spring 201, a handle 202 and a slider 203. The spring 201 is sleeved on the sliding arm 203. The handle 202 is provided with a threaded hole 2021.

The top end of the sliding arm 203 is connected with the branch I101 through a through hole I1011, and the bottom end of the sliding arm 203 is connected with the handle 202 through a threaded hole 2021. The handle 202 is perpendicular to the slider arm 203. The slider 203 is located within the semi-enclosed region S.

Both ends of the sliding arm 203 are simultaneously provided with threads, one end of the sliding arm 203 connected with the branch I101 is provided with a sliding arm cap 2031, the sliding arm cap 2031 is screwed into the top end of the sliding arm 203, and the sliding arm cap 203 is positioned outside the semi-surrounding area S.

A positioning head 2022 is installed at the top of one end of the handle 202 connected with the sliding arm 203, a threaded rod is arranged on the positioning head 2022, and a threaded hole matched with the threaded rod is formed at the top of one end of the sliding arm 203 connected with the positioning head 2022;

the positioning head 2022 butts against the middle arm 3. A sliding groove is arranged at the contact position of the middle arm 3 and the positioning head 2022.

The retainer 2 further comprises a support handle 204, the overall structure of the support handle 204 is L-shaped, the support handle 204 is located in the semi-surrounding area S, and the support handle 204 comprises an upper branch and a right branch.

The upper branch of the support handle 204 is connected with the branch I101, a through hole IV 1015 is formed in the right branch of the support handle 204, and the through hole IV 1015 and the through hole I1011 are the same in size and symmetrical in position.

The right leg of the support handle 204 is provided with a through hole V1016, and one of the rolling bearings 1014 is connected to the support handle 204 via the through hole V1016 and a pin I1031. Said rolling bearing 1014 is in contact with the slider arm 203; the axis of the rolling bearing 1014 is parallel to the axis of the through-hole i 1011.

The sliding arm 203 sequentially penetrates through the through hole I1011 and the through hole IV 1015 from top to bottom, and is connected with the handle 202 through the threaded hole 2021.

The middle arm 3 is hinged on the tone changing clamp main body 1 through a through hole II 1012 and a pin III 1033. The middle arm 3 is located within the semi-enclosed region S.

The neck of the stringed instrument comprises a fingerboard and a back surface, wherein the surface of the fingerboard of the neck is provided with a plurality of protruding product columns which extend transversely, and a plurality of strings which extend longitudinally above the fingerboard and the product columns.

In use, the middle arm 3 and the branch II 102 form a splinting structure, the branch II 102 is contacted with the surface of the cervical fingerboard, and the middle arm 3 is contacted with the back of the neck.

The spring 201 is in a compressed state, and the positioning head 2022 on the handle 202 pushes the middle arm 3 tightly.

The position where the middle arm 3 and the branch II 102 are contacted with the neck of the guitar is provided with a silica gel pad 4 matched with the shape of the neck of the stringed musical instrument, the position where the branch II 102 is contacted with the strings on the surface of the neck fingerboard is provided with a strip-shaped silica gel pad 402, and the position where the middle arm 3 is contacted with the back of the neck is provided with an arc-shaped silica gel pad 401.

The slide arm 203 can slide up and down with low resistance by means of a rolling bearing 1014 mounted inside the through hole. The slider cap 2031 is attached to the top end of the slider to prevent the slider 203 from being separated from the clip body 1.

The silica gel pad 4 allows an even clamping force to be obtained for each string, and also ensures that no damage is caused to the neck of the instrument.

In use, as shown in figure 2, the thumb and forefinger are placed on the tail of the body 1 and the bottom of the handle 202 respectively, the forefinger closes towards the thumb, the slider 203 slides upwards and causes the compression spring 201 to be compressed to open the clamping area between the middle arm 3 and the body 1.

The clamping area of the tone changing clamp corresponds to the neck of the musical instrument, the tail of the main body 1 and the fingers on the handle 202 are loosened, the rebound force of the compression spring 201 promotes the sliding arm 203 to slide downwards, the contact point of the positioning head 2022 and the sliding groove of the middle arm 3 moves towards the bottom end direction of the middle arm 3, the middle arm 3 is close to the clamping section of the main body 1 to clamp the neck of the musical instrument, at the moment, the clamping force of the tone changing clamp is smaller than the tension of strings, the strings cannot be directly clamped on the product column of the neck of the musical instrument, and then the force for clamping the strings can be adjusted according to different requirements.

The compression spring 201 arranged in the structure of the invention does not directly act on the strings, but only serves as an auxiliary member, so that the assembly and adjustment process of the capo when applied to the neck of the musical instrument is more convenient.

The force for pressing the strings is adjusted, and the thumb presses the slider cap 2031, so that the contact point of the positioning head 2022 and the chute of the middle arm 3 moves toward the bottom end of the middle arm 3, and the middle arm 3 is then closed toward the clamping section of the main body 1, thereby realizing application of proper clamping force for different tensions of the strings.

Claims

1. A slider-type tone-changing clip for a stringed instrument, characterized by: comprises a tone changing clamp main body (1), a retainer (2) and a middle arm (3);

The whole structure of the tone changing clamp main body (1) is 7-shaped, the tone changing clamp main body (1) comprises a branch I (101) and a branch II (102), and the branch I (101) and the branch II (102) are surrounded to form a semi-surrounding area S;

a through hole I (1011) and a through hole II (1012) are formed in the branch I (101); the through hole II (1012) is close to the junction of the branch I (101) and the branch II (102); the through hole I (1011) is close to the tail end of the branch I (101);

A plurality of rolling bearings (1014) are arranged in the branch I (101), the rolling bearings (1014) are embedded into the inner wall of the through hole I (1011), and the rolling bearings (1014) are contacted with the sliding arm (203);

the axis of the rolling bearing (1014) is parallel and symmetrical to the axis of the through hole I (1011);

the retainer (2) comprises a spring (201), a handle (202) and a sliding arm (203); the spring (201) is sleeved on the sliding arm (203); the handle (202) is provided with a threaded hole (2021);

The top end of the sliding arm (203) is connected with the branch I (101) through a through hole I (1011), and the bottom end of the sliding arm (203) is connected with the handle (202) through a threaded hole (2021); the handle (202) is perpendicular to the sliding arm (203); the sliding arm (203) is positioned in a semi-surrounding area S;

the retainer (2) further comprises a support handle (204), the overall structure of the support handle (204) is L-shaped, the support handle (204) is positioned in the semi-surrounding area S, and the support handle (204) comprises an upper support and a right support;

The upper branch of the support handle (204) is connected with the branch I (101), a through hole IV (1015) is formed in the right branch of the support handle (204), and the through hole IV (1015) and the through hole I (1011) are the same in size and symmetrical in position;

A through hole V (1016) is formed in the right branch of the support handle (204), and a rolling bearing (1014) is connected with the support handle (204) through the through hole V (1016); the rolling bearing (1014) is in contact with the slider arm (203);

The sliding arm (203) sequentially penetrates through the through hole I (1011) and the through hole IV (1015) from top to bottom and is connected with the handle (202) through the threaded hole (2021);

Threads are simultaneously arranged at two ends of the sliding arm (203), a sliding arm cap (2031) is arranged at one end, connected with the branch I (101), of the sliding arm (203), the sliding arm cap (2031) is screwed into the top end of the sliding arm (203), and the sliding arm cap (203) is positioned outside the semi-surrounding area S;

a positioning head (2022) is arranged at the top of one end, connected with the sliding arm (203), of the handle (202), a threaded rod is arranged on the positioning head (2022), and a threaded hole matched with the top of one end, connected with the positioning head (2022), of the sliding arm (203) is formed;

the positioning head (2022) is propped against the middle arm (3); a sliding groove is arranged at the contact position of the middle arm (3) and the positioning head (2022);

the middle arm (3) is hinged on the tone changing clamp main body (1) through a through hole II (1012); the middle arm (3) is located in the semi-enclosed area S.

2. A slider-arm capo for a stringed musical instrument as in claim 1, wherein: the integral structure of the branch I (101) is in two sections of connected arcs, the circle centers of the two sections of arcs are located on different sides, and the circle centers of the arcs close to the junction of the branch I (101) and the branch II (102) are located in a semi-surrounding area S.

3. A slider-arm capo for a stringed musical instrument as in claim 1, wherein: the neck of the stringed instrument comprises a fingerboard and a back surface, wherein the surface of the fingerboard of the neck is provided with a plurality of protruding product columns which extend transversely, and a plurality of strings which extend longitudinally above the fingerboard and the product columns;

When the device is used, the middle arm (3) and the branch II (102) form a splint-shaped structure, the branch II (102) is contacted with strings on the surface of the cervical fingerboard, and the middle arm (3) is contacted with the back surface of the cervical fingerboard;

The spring (201) is in a compressed state, and the middle arm (3) is tightly propped by the positioning head (2022) on the handle (202);

The positions of the middle arm (3) and the branch II (102) which are contacted with the neck of the guitar are provided with silica gel pads (4) which are matched with the shape of the neck of the stringed musical instrument.