Force Adjustable Spring-Clamp Capo with Thrust Bearing
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Solution Overview
Problem
Current capos for stringed instruments lack adjustable clamping force, with existing designs either being inflexible, difficult to operate, or requiring both hands for adjustment, leading to instability and inefficiency in pitch adjustment.
Innovation Solution
A force adjustable spring-clamp capo with a pressure adjustment mechanism comprising a pressure spring, regulation screw, and regulation nut, allowing for single-handed operation and customizable clamping force adjustment via a composite pressing rivet and screw limiting hole configuration, incorporating a planar thrust bearing for reduced friction and non-slip patterns for enhanced usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a spring-clamp capo design is used, then ease of operation is improved, but clamping force adjustability deteriorates
Solution Approach 1:
The patent merges the spring-clamp mechanism with a screw adjustment mechanism into a single integrated device. The clamping arm contains both a spring for automatic clamping and a screw-nut assembly for force adjustment, combining the advantages of both types of capos into one unified structure that provides both ease of operation and adjustability
Solution Approach 2:
The patent introduces a dynamic adjustment capability to the spring-clamp capo by incorporating a movable screw mechanism within the clamping arm. This allows the clamping force to be dynamically adjusted by rotating the screw, which moves the nut along the screw thread to change the spring compression and thus the clamping force
2Adaptability or versatility
If a screw-on capo design is used, then clamping force adjustability is improved, but ease of operation deteriorates
Solution Approach 1:
The patent combines the screw adjustment mechanism with a spring-loaded clamping mechanism. The screw provides adjustability while the spring provides automatic clamping action, eliminating the need for manual tightening and loosening operations required by traditional screw-on capos
Solution Approach 2:
The spring mechanism automatically performs the clamping action when the capo is placed on the guitar neck, eliminating the need for the user to manually tighten the screw. The spring self-adjusts to apply clamping force, and the screw only needs to be adjusted for force calibration, not for basic operation
3Adaptability or versatility
If a rolling capo design is used, then adaptability is improved, but stability deteriorates
Solution Approach 1:
The patent creates a controlled dynamic system where the spring provides flexible adaptation to different neck positions and string tensions, while the screw mechanism provides a stable locked state when adjusted. This controlled dynamics allows both flexibility and stability, unlike the purely passive rolling capo
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables easy, effort-saving operation with adjustable clamping force, combining the stability of a spring-clamp capo with the adjustability of a screw-on capo, allowing players to achieve optimal tuning assistance.
Implementation Method 1
a pressure spring, a regulation screw and a regulation nut
Implementation Method 2
another end of the regulation screw passes through the screw regulating through hole and screws with the regulation nut in the nut accommodating port
Implementation Method 3
a planar thrust bearing is embedded in the regulation nut, one end face of the planar thrust bearing touches the clamping arm
Data Source
AI summary
The present utility model discloses a force adjustable spring-clamp capo, comprises a string-engaging arm and a damping arm, the string-engaging arm and the clamping arm are hinged together by a composite pressing rivet, wherein a pressure adjustment mechanism is further arranged in a middle of the clamping arm, including: a pressure spring, a regulation screw and a regulation nut, by the pressure adjustment mechanism, a collapsing length of the pressure spring is adjusted, making the force of the spring change (Hooke's law), which makes the clamping force of the capo adjustable, it can also be operated by a single hand of a player as the spring-damp capo, thus owns a simple and easy operation, making a player be able to adjust to a best clamping force according to a requirement of the instrument thereof, to achieve a role of a tune transfer assistance perfectly. By a planar thrust bearing embedded in the regulation nut, the present utility model further reduces the resistance generated by the friction between the regulation nut and the clamping arm greatly, thus simplifies the operation of a force adjustment, and achieves the purpose of effort saving.