Adjustable Weight Dead Blow Hammer via Internal Redistribution

Solution Overview

Problem

The need for multiple dead blow hammers of varying weights to accommodate different tasks is inefficient, as workers often have to carry excess weight or use an unsuitable hammer, leading to ineffective performance.

Innovation Solution

An adjustable weight dead blow hammer with a hollow head filled with weight materials like sand or steel pellets, featuring a handle with a hollow chamber and an adjustment screw that moves the weight material between the head and handle, allowing for adjustable striking force.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple dead blow hammers of varying weights are acquired to accommodate different tasks, then the suitability for specific purposes is improved, but the device complexity and quantity of tools required increases

Engineering Contradiction:

Improvesuitability for specific purposesVSAvoidquantity of tools required

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The dead blow hammer is designed with a hollow head containing weight material that can be redistributed between the head and handle, allowing a single tool to perform multiple functions across different weight requirements. This eliminates the need for multiple specialized hammers while maintaining adaptability to various task requirements.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The hammer incorporates an adjustable mechanism that allows the weight distribution to be dynamically changed during use. The weight material can be moved between the head and handle to adjust the hammer's effective weight, transforming a static tool into a dynamic one that adapts to different task requirements.

Inventive Principle:

Principle #15Dynamics

2Device complexity

If a single dead blow hammer with fixed weight is used, then the device complexity is reduced, but the adaptability to different task requirements deteriorates

Engineering Contradiction:

Improvesimplicity of toolVSAvoidsuitability for specific purposes

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The hammer incorporates an adjustable mechanism that allows the weight distribution to be dynamically changed during use. The weight material can be moved between the head and handle to adjust the hammer's effective weight, transforming a static tool into a dynamic one that adapts to different task requirements.

Inventive Principle:

Principle #15Dynamics

3Adaptability or versatility

If multiple weighted hammers are carried to ensure proper weight availability, then the adaptability to different tasks is improved, but the weight of moving object increases

Engineering Contradiction:

Improveavailability of suitable weightVSAvoidtotal weight carried

Core Design Contradiction:

Adaptability or versatilityVSWeight of moving object

Solution Approach 1:

The dead blow hammer is designed with a hollow head containing weight material that can be redistributed between the head and handle, allowing a single tool to perform multiple functions across different weight requirements. This eliminates the need for multiple specialized hammers while maintaining adaptability to various task requirements.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The invention combines multiple weight configurations into a single hammer by incorporating a reservoir of weight material that can be redistributed. This merges the functionality of multiple fixed-weight hammers into one adjustable tool, reducing the total weight that needs to be carried while maintaining adaptability.

Inventive Principle:

Principle #5Merging (Combining)

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

Enables a single hammer to provide multiple striking weights, eliminating the need for multiple tools and ensuring a suitable weight is always available, with the ability to adjust the impact force by up to half of the maximum starting weight.

Implementation Method 1

the adjustment screw which may be located on a second, bottom end of the handle which moves a corkscrew device within the handle. The corkscrew device extends from the bottom end of the handle to the top end of the handle at the opening to the head. When the adjustment screw is moved, it causes the weight material to move between the head and the handle.

Methodology Applied

Scientific EffectGravity: Gravitation

Data Source

PatentUS11491626B1Adjustable weight dead blow hammer

Publication Date: 2022.11.08 HORGAN THOMAS B

AI summary

The present invention is an adjustable weight dead blow hammer comprising a hollow head filled with an acceptable fill material. A handle is connected to the head wherein the handle has a hollow chamber that traversers the length of the handle and has an opening into the head. The weight of the hammer head may be adjusted by moving the fill material between the head and the hollow chamber in the handle. Adjustment may be accomplished by a corkscrew device which is disposed within the hollow chamber and having a screw tip at the opening and c screw head on an outside portion of a bottom end of the handle. The corkscrew device within the hollow chamber moves the fill material between the head and the handle. More fill material in the head increases the force of impact, and less fill material in the head decreases the force of impact.