Saddle Footing with Curved Contact for Stringed Instruments

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Solution Overview

Problem

Stringed musical instruments face challenges with intonation and tuning due to limited contact surface area between conventional bridges and soundboards, leading to frequent detuning and inaccurate intonation, and existing technologies do not effectively enhance sound transmission.

Innovation Solution

A saddle assembly with a saddle footing that enlarges the contact surface area between the bridge or saddle and soundboard, incorporating a transducer pickup for improved sound transmission and intonation, and is universally applicable to various stringed instruments with optional features like adjustable thumb wheels and modified saddles for enhanced structural support and sonic enhancement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a conventional bridge or saddle is used with limited contact surface area, then the device complexity is low, but the intonation accuracy deteriorates and tuning stability worsens due to frequent detuning

Engineering Contradiction:
Improveintonation accuracyVSAvoidbridge structure complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The bridge is divided into multiple independent segments or saddles, each with adjustable position and contact area. This segmentation allows precise control over string height and intonation for each string individually, improving measurement precision without requiring complete redesign of the entire bridge structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The bridge design incorporates multiple functions: it serves as a structural support, a tuning mechanism, and an intonation adjustment device. By integrating these functions into a single component or system, the patent improves intonation accuracy while minimizing the increase in device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If a conventional saddle with limited contact surface area is used, then the ease of manufacture is high, but the tuning stability deteriorates due to bridge bending during play

Engineering Contradiction:
Improvetuning stabilityVSAvoidsaddle manufacturing complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The saddle is constructed using composite materials that combine rigidity and durability while maintaining ease of manufacture. This allows the saddle to resist bending during play, improving tuning stability, while still being manufacturable using conventional processes.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The saddle incorporates curved or arched designs that distribute string pressure more evenly across the contact surface. This curvature reduces stress concentration and prevents bending, improving reliability while maintaining manufacturing feasibility through standard woodworking or molding techniques.

Inventive Principle:
Principle #14Spheroidality (Curvature)

3Power

If a conventional bridge with limited contact surface area is used, then the device simplicity is maintained, but sound transmission is insufficient

Engineering Contradiction:
Improvesound transmissionVSAvoidbridge structure
Core Design Contradiction:
PowerVSDevice complexity

Solution Approach 1:

The bridge design extends into additional dimensions by incorporating adjustable arms, levers, or multi-level structures that increase the effective contact surface area with the soundboard. This dimensional expansion improves sound transmission by enhancing coupling between the strings and soundboard without requiring complete structural redesign.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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

The saddle assembly improves intonation accuracy and extends string tension stability, while enhancing sound transmission and converting acoustic instruments into electric ones with reduced signal noise ratio, accommodating various instruments with increased contact surface area and integrated transducer pickups.

Implementation Method 1

conventional transducer pick up incorporated within the saddle assembly

Methodology Applied
Scientific EffectPiezoelectric effect: Piezoelectric Effect

Implementation Method 2

enhancing and resonating the transmission of sound from the vibration of the strings

Methodology Applied
Scientific EffectSound transmission: Sound

Data Source

PatentEP3756181B1Saddle/bridge assembly for stringed musical instruments
Publication Date: 2023.10.11 OBERG ROBERT L
  • EP3756181B1 patent drawingFigure 1
  • EP3756181B1 patent drawingFigure 2a~2b
  • EP3756181B1 patent drawingFigure 3

AI summary

A saddle assembly for a stringed musical instrument comprising a saddle footing having a body of any desired geometry and a surface curvature compatible with and conforming to the surface curvature of the soundboard of the stringed musical instrument upon which the body of the saddle footing is mounted with or without the use of a bridge plate, with the saddle footing adapted to accommodate either a conventional bridge or conventional saddle for elevating the strings in the stringed musical instrument relative to the soundboard or upon which a modified bridge or modified saddle is mounted having a geometry which conforms in geometry and curvature to the geometry and curvature of the elongated slot in the saddle footing.