Guitar Tremolo Base Plate Pivot Rail Contact Surface
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Solution Overview
Problem
Conventional tremolo devices for guitars suffer from increased wear and friction due to small contact areas between the base plate and pivot rail, leading to inconsistent tuning and reduced performance over time.
Innovation Solution
The tremolo device features a base plate with a leading edge and pivot rail that increase the contact surface area to 3 or more surfaces, with lengths ranging from 20% to 100% of the leading edge, allowing for reduced wear and enhanced vibrational energy transfer, while maintaining fluid rotational movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a small contact area between base plate and pivot rail is used, then easy movement and reduced friction are achieved, but wear increases and tuning consistency deteriorates
Solution Approach 1:
The invention transitions from point contact (0D) or line contact (1D) to surface contact (2D) by providing a bearing surface on the pivot rail that mates with the leading edge of the base plate. This dimensional change increases the contact area from a small point or line to an extended surface, simultaneously reducing wear density and improving tuning consistency while maintaining movement smoothness.
Solution Approach 2:
The invention changes the contact area parameter from small (point/line contact) to large (surface contact). By modifying the geometric parameters of the pivot rail to include an extended bearing surface, the contact area is increased, which reduces wear rate and improves the reliability of tuning consistency without sacrificing ease of operation.
2Reliability
If a large contact surface area is used, then wear is reduced and tuning consistency is improved, but device complexity increases
Solution Approach 1:
The pivot rail is designed to perform multiple functions: it provides the bearing surface for reduced wear, acts as a structural support element, and serves as an attachment point for the base plate. By making the pivot rail multi-functional, the design achieves improved tuning consistency without proportionally increasing device complexity, as the same structural element serves multiple purposes.
Solution Approach 2:
The invention merges the pivot rail and bearing surface into a single integrated component rather than using separate parts. This consolidation reduces the number of components and assembly steps, thereby limiting the increase in device complexity while still providing the large contact surface area needed for reduced wear and improved tuning consistency.
3Speed
If point contact is used between base plate and pivot rail, then fluid rotational movement is achieved, but wear and friction increase
Solution Approach 1:
The invention transitions from point contact (0D) to surface contact (2D) by providing a bearing surface on the pivot rail. This dimensional change maintains the fluidity of rotational movement while distributing the contact pressure over a larger area, thereby reducing wear and friction losses.
Data Source
AI summary
A tremolo device is provided. The tremolo device has a base plate with a leading edge that comprises a bearing surface. The base plate also comprises a bracket for attachment of a lever. The tremolo device also includes a pivot rail comprising a pivot bearing surface that matingly engages the bearing surface of the leading edge. When matingly engaged, the bearing surface of the leading edge and the pivot bearing surface defines 3 or more contact surfaces having a length of from about 20% to about 100% of the length of the leading edge.