Multipurpose Striking Tool With Elastic Energy Absorption
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Solution Overview
Problem
Hand-held striking tools face safety issues due to hand injury risks from slipping, tool deterioration leading to costly replacements, and recoil/vibration causing inaccurate strikes and muscle strain.
Innovation Solution
A multipurpose striking tool with an energy-absorbing mechanism comprising a support body, handle, elastic return means, and interchangeable striking head, which reduces vibration and allows for adaptable use by positioning the handle away from the impact area and enabling easy replacement of the striking head.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a guard made of elastomer material is used to protect the operator's hand, then safety is improved, but the device complexity increases and adaptability is limited to one specific usage
Solution Approach 1:
The tool is divided into modular components: a permanent handle with energy-absorbing mechanism and interchangeable striking heads. This segmentation allows the striking head to be replaced when deteriorated while keeping the safe handle design, resolving the contradiction between safety and complexity.
Solution Approach 2:
The striking head is designed as a replaceable, consumable component that can be discarded when deteriorated, while the expensive handle with safety features is retained. This allows safety features to be maintained without permanently increasing overall device complexity.
2Strength
If the striking head is made durable with surface treatments, then strength is improved, but deterioration still occurs leading to slipping and injuries
Solution Approach 1:
The striking head is designed to be discarded when deteriorated and replaced with a fresh one. The handle with its energy-absorbing mechanism is recovered and retained. This ensures safety is maintained by replacing deteriorated striking surfaces while keeping the durable handle.
Solution Approach 2:
By separating the striking head from the handle, the design allows the striking head to be replaced when surface treatments deteriorate, preventing slips and injuries while maintaining the strength of the handle structure.
3Reliability
If the entire tool is replaced when the striking head deteriorates excessively, then reliability is improved, but loss of substance increases due to discarding the entire tool
Solution Approach 1:
The tool is segmented into a permanent handle and a replaceable striking head. When the striking head deteriorates, only that component is replaced while the handle is retained, reducing material waste while maintaining reliability.
Solution Approach 2:
The deteriorated striking head is discarded and replaced, while the handle with its energy-absorbing mechanism is recovered and reused. This prevents loss of the entire tool while maintaining reliability.
4Ease of operation
If the handle is positioned close to the impact area for better control, then ease of operation is improved, but harmful factors increase due to recoil and vibration transmitted to the operator
Solution Approach 1:
The elastic energy-absorbing mechanism acts as an intermediary between the striking head and the handle. It absorbs recoil and vibration energy, preventing transmission to the operator's hand while allowing the handle to remain in a comfortable gripping position.
Solution Approach 2:
The elastic mechanism converts harmful recoil and vibration energy into beneficial elastic deformation, absorbing the shock and preventing it from reaching the operator's hand while maintaining control.
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
Enhances operator safety by reducing vibration and allowing for adaptable use, improving striking accuracy and reducing maintenance costs through interchangeable parts and improved ergonomics.
Implementation Method 1
an elastic return means (3) resting on an upper face of the ring (2a) and having a function of absorbing the energy transmitted to the handle (2), thereby limiting vibration
Data Source
AI summary
A tool has a mechanism for absorbing energy transmitted to a hand grip, comprising a support body, a handle, an elastic return member and an interchangeable head as a base unit which is capable of accommodating additional fittings depending on the specific application. A lower part of the cylindrical body has a shouldered part having a diameter larger than its upper part so as to allow positioning and support of a ring associated with the handle. The handle has an internal shouldered part with an upper face constituting the support for the elastic return member. The interchangeable striking head comprises a part centered in the ring and a neck that fits inside an internal bore of the body. The striking head rests directly on the body in order to transmit the entire striking force to the body, and the handle extends rearwardly as the hand grip.