Hammer Buffer Spring Mechanism for Hand Shock Reduction
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Solution Overview
Problem
Conventional hammers transmit strong reaction forces to users' hands, leading to occupational injuries such as repeated hand trauma due to lack of shock absorption.
Innovation Solution
A hammering tool with a buffer design featuring a protrusion block section, a handle member, and a compression spring assembly that absorbs and dampens the impact force, reducing the shock transmitted to the user's hand.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a conventional hammer is used to hammer a work piece, then the hammering function is achieved, but a strong reaction force is transmitted to the user's hand causing shock and potential occupational injury
Solution Approach 1:
A buffer assembly comprising a first compression spring and a second compression spring is introduced as an intermediary between the hammering member and the handle member. This buffer assembly absorbs and dampens the reaction force generated during hammering, preventing the strong shock from being directly transmitted to the user's hand while maintaining the hammering function.
Solution Approach 2:
The buffer assembly with compression springs is pre-installed in the receiving chamber of the handle member, positioned to cushion the impact before it reaches the user's hand. The springs are pre-compressed between the protrusion block section and the first plate section, creating a ready-to-absorb shock absorption system that activates immediately upon hammering.
2Reliability
If a buffer assembly is added to reduce reaction force, then user hand protection is improved, but the device structure becomes more complex
Solution Approach 1:
The buffer assembly is integrated within the existing handle member structure by defining a receiving chamber that houses both compression springs. The first plate section, second plate section, and third plate section are merged to form the receiving chamber and mounting structure, combining multiple functions into a unified assembly that minimizes additional complexity.
Solution Approach 2:
The handle member is designed with multi-functionality: it serves as both the gripping structure for user operation and the housing for the buffer assembly. The receiving chamber formed by the plate sections simultaneously provides structural support and accommodates the shock absorption mechanism, eliminating the need for separate buffer housings.
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 buffer design effectively minimizes the impact force, reducing the risk of hand injuries and providing a healthier working environment by absorbing and dissipating the reaction force during hammering operations.
Implementation Method 1
a buffer assembly including a first compression spring received in the first receiving space
Implementation Method 2
a buffer assembly including a first compression spring received in the first receiving space
Data Source
AI summary
A hammering tool with buffer design includes: a hammering member, a protrusion block section extending from a lower side of the hammering member, a right side of upper section of the protrusion block section being notched to form a first receiving space; a handle member having a grip section, a first plate section, a second plate section and a third plate section being disposed at an upper end of the grip section to define a receiving chamber for inserting the protrusion block section therein; a pivot member for pivotally connecting the protrusion block section of the hammering member with the handle member; and a buffer assembly including a first compression spring received in the first receiving space. A right end face of the protrusion block section of the hammering member is spaced from a left face of the first plate section by a predetermined buffering distance.