Force-Limiting Damping Device for Hammer Rebound Control
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Solution Overview
Problem
Conventional hammers and mallets generate instant rebound reaction forces, leading to reduced tapping efficiency, discomfort, and inability to adjust force range, causing discomfort and potential damage to objects.
Innovation Solution
A force-limiting and damping device with a body, tapping element, shock-absorbing element, and limiting module that provides a three-stage force identification and damping effect, adjusting force range and reducing rebound through a limiting module with adjustable elastic elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a rigid tapping face is used in conventional hammers, then the tapping force is strong and direct, but instant rebound reaction force is generated causing reduced tapping efficiency and discomfort
Solution Approach 1:
The patent applies beforehand cushioning by incorporating a shock-absorbing element between the tapping element and the body. This element is pre-positioned to absorb the rebound reaction force before it can cause harmful effects. The shock-absorbing element deforms during impact to cushion the reverse impact, thereby maintaining tapping efficiency while reducing the instant rebound reaction force that causes discomfort and reduces productivity.
2Device complexity
If a rigid tapping face is used in conventional hammers, then the structure is simple, but vibration and noise are generated causing discomfort to user and patient
Solution Approach 1:
The patent uses an intermediary approach by introducing a shock-absorbing element as a mediator between the rigid tapping element and the hammer body. This intermediary component absorbs and dampens vibration and noise during impact, reducing harmful factors transmitted to the user and patient. The shock-absorbing element acts as a buffer that converts harmful vibrations into deformable energy, thereby reducing discomfort while maintaining structural simplicity.
3Device complexity
If conventional hammers are used, then the structure is fixed and simple, but they cannot be adjusted according to user needs reducing flexibility
Solution Approach 1:
The patent applies dynamics by making the shock-absorbing element adjustable in terms of its elastic coefficient. The limiting module allows users to replace or adjust the shock-absorbing element to change the force range according to different tapping needs. This dynamic adjustment capability enables the hammer to adapt to various applications while maintaining a relatively simple overall structure. The replaceable nature of the shock-absorbing element provides versatility without significantly increasing structural complexity.
4Ease of operation
If no force-limiting mechanism is used, then the device is simple to operate, but users cannot control the tapping force within a safe range causing potential damage
Solution Approach 1:
The patent implements feedback through the shock-absorbing element and limiting module that provide tactile feedback to the user during impact. The shock-absorbing element's deformation and resistance give the user immediate feedback on the force being applied, enabling intuitive force control. The limiting module can be configured to provide mechanical feedback when force limits are approached or exceeded. This feedback mechanism allows users to maintain operation simplicity while achieving reliable force control within safe ranges, preventing potential damage to workpieces or injury to patients.
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 tapping efficiency by reducing noise and vibration, preventing object deformation, and providing a stable tapping experience by adjusting force range according to user needs.
Implementation Method 1
a third elastic coefficient of the shock-absorbing element is smaller than a second elastic coefficient of the force-limiting element
Implementation Method 2
provides a three-stage force identification and damping effect
Data Source
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AI summary
A force-limiting and damping device has a body (10), a tapping element (20), a shock-absorbing element (33), and a limiting module (30). The body (10) has a connecting segment (11) and a holding segment (12). The tapping element (20) is connected to the body (10) and has a mounting segment (21), a tapping segment (22), and a fixing segment (23). The mounting segment (21) is movably connected to the connecting segment (11). The tapping segment (22) is disposed on the mounting segment (21). The shock-absorbing element (33) is mounted on the mounting segment (21) and abuts the connecting segment (11) and the tapping segment (22). The limiting module (30) is mounted between the body (10) and the tapping element (20) and has a force-limiting element (34) mounted between the mounting segment (21) and the connecting segment (11) to provide a force-limiting reminder and damping effect.