Current handheld impact tools like jackhammers, ice chippers, and powered scrapers often have short stroke lengths. This forces them to generate high impact energy using very high forces, which leads to strong vibrations, operator fatigue, reduced precision, and potential injury. They also risk damaging delicate surfaces and have limited adaptability for different jobs.
Core Features
This invention introduces an adjustable long-stroke impact tool that can be powered directly or as an attachment to existing devices (e.g., drills, lawn trimmers). Key features include:
- Barrel cam mechanism for longer stroke lengths, adjustable by the operator.
- Adjustable impact energy to match the job—powerful for demolition, gentler for delicate work.
- Safety systems such as “push-to-activate” (prevents unintended strikes), automatic release of stored spring energy when not in use, and reverse-drive protection.
- Noise and vibration reduction through impact isolation and sound-dampening pads.
- Modular design allowing interchangeable tool heads, adjustable handle angle, and adjustable overall length for comfort and ergonomics.
Inventive Step
Unlike standard cam designs limited to short strokes, the barrel cam system here enables significantly longer, user-adjustable stroke lengths—reducing vibration while maintaining or increasing impact energy. Combined with integrated safety and adjustability features, it offers a unique balance of power, control, and operator protection not seen in existing tools.
Tangible Benefits
- Lower vibration → safer, less tiring to use.
- Precision control → fewer, more effective strikes.
- Versatility → handles everything from ice removal to post-hole digging.
- Extended tool life thanks to protection against misuse and overstrain.
- Noise reduction allows operation in more environments.
Broader Impact
This tool could improve efficiency and safety across construction, demolition, landscaping, and maintenance industries. By reducing operator fatigue and injury risk, it supports longer, safer work periods. Its adaptability also makes it more sustainable—one device can replace multiple single-purpose tools, lowering costs and resource use.