Striking Tool Head Handle Attachment Mechanism
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Solution Overview
Problem
Existing striking tools face challenges in easily and cost-effectively replacing either the head or handle, as they often wear out or become damaged, leading to the need for replacing the entire tool.
Innovation Solution
A striking tool with an improved mechanism that securely connects the head and handle using a key/keyway structure or a connecting element, allowing for easy separation and replacement of components, and optionally incorporating a hardened striking member for titanium-based alloys to reduce damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the head and handle are permanently attached (e.g., welded or riveted), then the connection strength is improved, but the ease of replacement deteriorates
Solution Approach 1:
The striking tool is divided into separable components (head and handle) connected by a removable attachment mechanism. The handle includes a receptacle with a keyway, and the head includes a connecting element with a key that engages the keyway, allowing the head to be attached to or separated from the handle while maintaining a strong connection during use.
Solution Approach 2:
The attachment mechanism transitions from a static permanent connection to a dynamic removable connection. The connecting element can be inserted into and removed from the receptacle, enabling the system to switch between a firmly connected state during operation and a separated state for replacement or repair.
2Reliability
If the entire tool is replaced when one component wears out, then the reliability is maintained, but the loss of substance and cost increase
Solution Approach 1:
The tool is segmented into replaceable components, allowing only the worn component (head or handle) to be replaced rather than the entire tool. This reduces material waste while maintaining the reliability of the tool through component renewal.
Solution Approach 2:
Instead of discarding the entire tool when one component wears out, the design allows for selective replacement of only the worn component. The functional component can be recovered and reused, reducing material waste and cost while maintaining tool reliability.
3Ease of repair
If a removable attachment mechanism is used, then the ease of replacement is improved, but the connection strength deteriorates
Solution Approach 1:
The tool is divided into separable components connected by a removable mechanism that provides both ease of replacement and adequate connection strength during use.
Solution Approach 2:
The attachment mechanism provides dynamic connectivity - firmly connected during operation to maintain strength, but easily separable when replacement is needed. The key/keyway engagement provides mechanical strength while the removable nature enables easy replacement.
Data Source
AI summary
A striking tool having an improved attachment mechanism to safely and securely attach the head of the tool to the tool handle. In one configuration, the attachment mechanism has a key at the upper end of the handle that is sized and configured to be received in and engage a cooperatively configured keyway on the lower side of the head. In another configuration, the attachment mechanism has a connecting element with an elongated body that extends through a tubular body portion at an upper section of the handle and into a passageway in the head. In yet another configuration, the striking tool has both attachment mechanisms. A striking member made out of harder material can be utilized for the striking portion of the head. The connecting element can connect to an aperture in the striking member. A side nail puller can be positioned on the outer surface of the handle.