Compact Hammer Head with Offset Centerline for Low Clearance
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Solution Overview
Problem
Conventional hammers face difficulties in low clearance areas due to the need for additional clearance to accommodate protrusions like pry or wedges on the rear side of the hammer head, limiting the ability to strike objects with sufficient force in confined spaces.
Innovation Solution
A compact head body hammer design that omits rear protrusions, maintains weight similar to conventional hammers, and features axially offset centerlines between the hammer head and handle, allowing greater pull-back and reduced clearance requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional hammers include pry or wedge protrusions on the rear side of the hammer head, then the hammer can perform additional functions (prying, gripping), but the hammer requires additional clearance that is difficult to obtain in low clearance areas
Solution Approach 1:
The patent removes the pry or wedge protrusions from the rear side of the hammer head, extracting the problematic feature that caused the clearance issue. This allows the hammer to be used in low clearance areas without the interfering rear extensions, while the striking face remains functional for its primary purpose
2Adaptability or versatility
If the hammer head length is extended to accommodate pry or wedge tools, then additional functions are enabled, but the hammer requires additional clearance for effective use
Solution Approach 1:
The patent extracts and removes the extended rear portion of the hammer head that housed the pry or wedge tools. By shortening the hammer head length and eliminating the rear extensions, the tool can operate effectively in confined spaces with limited clearance while retaining the primary striking function
3Stability of the object's composition
If the hammer head has mass distributed to the rear portion for balance, then the hammer can maintain stability, but the clearance required for pull-back motion increases
Solution Approach 1:
The patent employs asymmetric mass distribution within the hammer head by offsetting the centerline of the head body relative to the centerline of the handle. This creates an uneven weight distribution that shifts mass forward, reducing the rearward extension needed for balance and thereby decreasing the clearance required for effective pull-back motion
4Ease of operation
If the centerline of the hammer head is offset relative to the handle centerline, then less mass is on the rear portion allowing greater pull-back, but the hammer design becomes more complex
Solution Approach 1:
The patent implements a simple asymmetric design by offsetting the hammer head centerline relative to the handle centerline. This straightforward geometric adjustment redistributes mass forward without requiring complex mechanisms, thereby enabling greater pull-back distance and improved operation in low clearance areas while maintaining design simplicity
Data Source
AI summary
A compact head body hammer that requires less clearance to operate as compared to conventional hammers. The hammer does not include a secondary tool located on the rear of the hammer, for example, a pry or a wedge. In omitting these secondary tools, the hammer provides more clearance and allows greater pull back prior to the user striking an object. Further, the hammer head can weigh substantially the same as a conventional hammer head, for example, seven ounces, so that the striking power of the hammer is not compromised by the compact nature of the hammer. The centerline of the hammer head base can be offset with respect to a centerline of the hammer handle, which also provides less mass at the rear portion of the hammer head and allows greater pull back prior to striking the object.