CN217133990U

CN217133990U - Tone-changing clamp

Info

Publication number: CN217133990U
Application number: CN202120582478.5U
Authority: CN
Inventors: 李卫
Original assignee: Shenzhen Fzone Technology Co ltd
Current assignee: Shenzhen Fzone Technology Co ltd
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2022-08-05
Anticipated expiration: 2031-03-22

Abstract

The utility model relates to a clamping mechanism for guitar capo, it has anchor clamps and lower anchor clamps. The upper clamp and the lower clamp form a clamping hinge structure. The upper and lower clamps are pivotably connected to each other by a toothed one-way gear. The gear is disposed within the lower clamp. The unlocking handle is hinged in the upper clamp. The handle has a first end and a second end that selectively engage the teeth of the gear. When the second end of the handle engages the gear teeth, the gear is stationary and the lower clamp can be pivoted toward the upper clamp to a closed position. When the second end disengages the gear teeth, the gear is movable and the lower clamp is able to pivot from the upper clamp to an open position.

Description

Tone-changing clamp

Technical Field

The present disclosure relates to the field of guitar accessories, and in particular to a clamping mechanism for a guitar capo.

Background

The capo is initially used to adjust the pitch of the guitar. It is the commonly used appurtenance in ballad guitar performance and singing. When pitch is changed, the capo can increase the pitch by a corresponding interval while playing according to the original fingering by pressing the frets, so that the pitch is kept consistent with the singer's voice, thereby greatly reducing the difficulty of changing the pitch, and the capo is now widely used for playing framenge guitar, classical guitar and ballad guitar.

The traditional capo can only be adapted to guitars with a single size fingerboard, or on a guitar at a time. When the capo user wants to change to another guitar, the capo needs to be readjusted. As a result, guitar enthusiasts need to purchase a large number of capo to suit different guitars. Each time the guitar is changed, it takes time to find the appropriate capo among the different types of capos available to the player. Different capo have different clamping forces and are therefore less suitable. The clamping force of the spring type capo is difficult to guarantee and cannot be adjusted and a capo operating in the screw tightening mode is complicated to operate and has a short service life. There is a need for an capo that provides a clamping mechanism that can accommodate stringed instruments, guitars, regardless of the size of the fingerboard.

It is an object of embodiments of the present application to provide a clamping mechanism for a guitar capo that is convenient for the user to use at any time and is suitable for different types of guitars, thereby improving the ability of the human hand to freely control the clamping force and thus solving the following problems: the conventional capo is applicable only to guitars having a single fingerboard, requires readjustment of the capo when the player changes different types of guitars, and requires a long time to find a suitable capo after each guitar change.

SUMMERY OF THE UTILITY MODEL

A clamp mechanism for clamping an capo, such as for a guitar capo, is provided. The capo has a lower clamp hinged and pivotally connected to the upper clamp. The lower clamp moves relative to the upper clamp between an open position and a closed position. A toothed one-way gear is disposed within the lower clamp. The gear has gear teeth on an outer gear surface and a one-way rolling bearing on an inner gear surface. The rolling bearing rotates counterclockwise but not clockwise.

An unlocking handle selectively engages the gear teeth. A handle is hingedly connected within the upper clamp and has a first end and a second end. The second end selectively engages the teeth of the gear. When the second end of the handle engages the gear teeth, the gear is stationary and the lower clamp can be pivoted toward the upper clamp to a closed position. When the second end of the handle disengages the gear teeth, the gear moves and the lower clamp is pivotable away from the upper clamp to an open position. One side of the lower clamp adjacent to the upper clamp can be fixedly provided with a protective pad.

Drawings

Figure 1 shows a capo of the invention.

Fig. 2 shows an exploded view of the capo of fig. 1.

Fig. 3 shows an interior view of the capo of fig. 1.

Detailed Description

Fig. 1-3 show a capo 1000 having an upper clamp 100 and a lower clamp 200. The upper and

lower clamps

100 and 200 form a clamping hinge structure and are pivotably connected to each other. The lower clamp 200 is rotated clockwise to the open position under pressure or action of the lower clamp biasing mechanism 370. The user can close the capo 1000 by pressing the lower clamp 200 to the upper clamp 100 by hand and reducing the distance between the upper clamp 100 and the lower clamp 200.

An unlocking handle 300 in the upper clamp 100 cooperates with the gear 350 to allow the capo 1000 to open and close. The handle 300 is hinged to the upper clamp 100 at pin 340 and is biased by a handle biasing mechanism 360. The handle 300 has a first end 310 and a second end 330. See fig. 3. The handle 300 selectively ratchets the gear 350. In one embodiment, gear 350 may be a toothed one-way needle bearing clutch. The outer surface of the gear 350 has teeth 352 and the core of the gear 350 has a one-way roll pin bearing 354. The bearing 354 rotates counterclockwise but not clockwise.

When the first end 310 of the handle 300 is not pressed or touched, the handle biasing mechanism 360 is engaged or activated and the second end 330 of the handle 300 engages the teeth 352. With the handle 300 engaged with the gear 350, the gear 350 is stationary and the lower clamp 200 cannot move clockwise. However, the one-way bearing 354 within the gear 350 may move and allow the lower clamp 200 to move counterclockwise about the gear pin 356. The lower clamp 200 may pivot and move toward the upper clamp 100 to a closed position. As a result, capo 1000 is locked onto the guitar neck and can be quickly and easily mounted on the guitar string.

When the first end 310 of the handle 300 is depressed, the handle biasing mechanism 360 is disengaged or deactivated and the second end 330 disengages the teeth 352. Here, the gear 350 and the lower clamp 200 can move clockwise due to the influence of the biasing mechanism 370. See fig. 2. As described above, the handle biasing mechanism 360 enables the second end 330 of the handle 300 to selectively engage the teeth 352 of the gear 350. Here, the lower clamp 200 pivots about the gear pin 356 to increase the distance between the upper clamp 100 and the lower clamp 200 and loosen the guitar fingerboard or neck. As a result, the capo 1000 is opened, unlocked and can be quickly removed from the guitar neck.

A protection pad 210 may be fixedly mounted to one side of the lower clamp 200 adjacent to the upper clamp 100. Also, the upper jig 100 may have a protection pad 110 disposed on a side adjacent to the lower jig 200. In one embodiment, the protective pad may be a resilient silicone material or the like. Capo 1000 presses upon the guitar strings when the capo is placed on the guitar neck. After pressing the guitar strings, the protection pad 210 on the lower jig 200 is deformed by the elastic force to provide the elastic force for clamping the guitar strings.

In one embodiment, the gear 350 is disposed in the lower clamp 200. In another embodiment, the gear 350 may be positioned and disposed within the lower clamp 200 and surrounded by the hanging portion of the upper clamp 100. In yet another embodiment, a pin 356 connects the gear 350 to the lower clamp 200 and the upper clamp 100. In another embodiment, the pin 356 is disposed at a lower portion of the upper clamp 100 and passes through the lower clamp 200 to be supported between each clamp. The biasing

mechanisms

360 and 370 may be any tension or spring mechanism. In one embodiment, the biasing mechanism 370 may be a resilient spring. In one embodiment, the handle biasing mechanism 360 may be, but is not limited to, a spring, a return spring plate, or the like.

While particular embodiments of the present invention have been described and illustrated, these should be considered as merely illustrative of the invention and not as limiting the invention as construed in accordance with the accompanying claims. One of ordinary skill in the art may change the above embodiments or provide insubstantial changes that may be made without departing from the scope of the invention.

Claims

1. A clamping capo for a stringed musical instrument comprising:

an upper clamp;

a lower clamp pivotably connected to the upper clamp, the lower clamp pivotable between an open position and a closed position;

a gear disposed within the lower clamp, the gear having gear teeth on an outer gear surface and a bearing on an inner gear surface; and

a handle having a first end and a second end, the second end selectively engaging the gear teeth.

2. The clamp capo of claim 1 wherein said bearing is a one-way needle bearing.

3. The clamp capo of claim 1 wherein said bearing rotates in one direction.

4. The clamp capo of claim 1 wherein said bearing rotates counterclockwise.

5. The clamping capo of claim 1 wherein when said second end of said handle is engaged with said gear teeth, said gear is stationary and said lower clamp is pivotable counterclockwise toward said upper clamp to said closed position.

6. The clamping capo of claim 1 wherein when said second end of said handle disengages said gear teeth, said gear moves and said lower clamp can pivot clockwise away from said upper clamp to said open position.

7. The clamp capo of claim 1 further comprising a lower clamp biasing mechanism, wherein said lower clamp is rotated clockwise by said lower clamp biasing mechanism.

8. The clamping capo of claim 1 wherein said handle is pivotally connected to an upper arm.

9. The clamp capo of claim 1 further comprising a handle biasing mechanism, wherein a second end of the handle selectively engages the gear teeth under the action of the handle biasing mechanism.