Modular Shimbari Framing for Controlled Pressure on Fragile Surfaces
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Solution Overview
Problem
The existing methods for applying pressure to fragile surfaces of works of art, such as those with lacquered and polychrome finishes, are inefficient and lack versatility, particularly in handling a wide range of object sizes and materials.
Innovation Solution
The development of innovative shimbari frame designs with adjustable backing surfaces and fiberglass pressure rods, combined with flexible pressure pads and barrier layers, allows for precise and controlled clamping pressure, suitable for various conservation treatments, including structural repairs and large-scale objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional shimbari methods are used for surface consolidation, then controlled clamping pressure from one direction is achieved, but the process is inefficient and requires repeated fabrication of single-use supports
Solution Approach 1:
The traditional single-use shimbari supports are segmented into reusable modular components: frame structures, pressure rods, and pressure pads. This segmentation allows each component to be independently optimized and reused across multiple treatments, eliminating the need for repeated fabrication while maintaining controlled clamping pressure.
Solution Approach 2:
The reusable shimbari system is designed to be self-servicing through its modular architecture. The frame structures, pressure rods, and pads can be easily assembled, adjusted, and disassembled without requiring specialized tools or expertise, enabling conservators to efficiently set up and reuse the system across multiple treatments.
2Adaptability or versatility
If traditional shimbari supports are fabricated for each treatment, then customization for specific objects is achieved, but time and resources are wasted through repeated fabrication
Solution Approach 1:
The shimbari system employs universal frame structures and pressure rods that can be configured for different object sizes and shapes. The modular components serve multiple functions across various conservation treatments, eliminating the need for custom fabrication for each object while maintaining the adaptability required for specific treatment needs.
Solution Approach 2:
The system incorporates adjustable and reconfigurable elements that allow dynamic adaptation to different objects. Pressure rods can be repositioned, frame structures can be reconfigured, and pressure pads can be adjusted to match the specific geometry of each artwork, providing customization without repeated fabrication.
3Object-affected harmful factors
If multiple layers of pads are used for pressure distribution, then protection of fragile surfaces is achieved, but the complexity of the system increases
Solution Approach 1:
The pressure pads are constructed as composite structures combining multiple materials with complementary properties: a rigid support layer for structural integrity, a compliant intermediate layer for pressure distribution, and a protective surface layer for artifact safety. This composite approach provides comprehensive protection while maintaining relative simplicity compared to multiple separate layers.
Data Source
AI summary
Based on the traditional shimbari principle, new methods for precise positioning and support of shimbari rods utilizing a modular aluminum framing system have been developed. With these innovations, a wide range of three-dimensional works of art can be treated, including large-scale sculptures with complex contours and irregular surfaces. These methods and systems include easily adaptable shimbari clamping devices and pivot mounts developed by a team of conservators and an industrial designer-fabricator in the Department of Objects Conservation at the Metropolitan Museum of Art.