Wedge Anchor Setting Attachment for Rotary Hammer Drills
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Solution Overview
Problem
The conventional method of installing wedge anchors in concrete, masonry, or rock is labor-intensive, physically demanding, and hazardous, especially when performed overhead, as it requires manual hammering, which can lead to anchor failure and increased risk of injury due to the need for excessive force and limited workspace.
Innovation Solution
A power tool attachment with a sliding receiver that stabilizes the wedge anchor, allowing it to be driven into a pre-drilled hole using a rotary-hammer drill, freeing the operator's hand and reducing physical strain while ensuring proper anchor placement and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual hammering is used to install wedge anchors, then the anchor can be driven into the substrate, but the operation becomes labor-intensive, physically demanding, and hazardous especially when working overhead
Solution Approach 1:
The patent introduces a setting apparatus as an intermediary tool between the power tool and the wedge anchor. The setting apparatus includes a receiver that holds the anchor and transmits the power tool's impact forces to the anchor, eliminating the need for manual hammering while maintaining proper installation forces.
Solution Approach 2:
The patent replaces the manual mechanical hammering system with a power tool-based mechanical system. The rotary hammer drill or impact driver generates impact forces that are transmitted through the setting apparatus to drive the anchor, substituting manual labor with powered machinery.
2Ease of operation
If manual hammering is used to install wedge anchors, then the anchor can be driven into the substrate, but the operator must balance themselves and maneuver in limited workspace, increasing accident risk
Solution Approach 1:
The setting apparatus serves as a stable intermediary platform that the operator can securely hold with one hand while the other hand is freed for safety operations. The apparatus provides a fixed reference point that eliminates the need for the operator to balance while manually hammering.
Solution Approach 2:
The setting apparatus is designed to be self-positioning within the power tool chuck, requiring minimal manual adjustment. The apparatus automatically aligns and secures the anchor, reducing the operator's physical burden and improving safety by eliminating balancing requirements.
3Strength
If larger wedge anchors are driven with increased force, then proper attachment performance is achieved, but the anchor can be easily damaged by glancing blows during hand hammering
Solution Approach 1:
The setting apparatus acts as a protected intermediary channel that guides and controls the impact forces transmitted to the anchor. The receiver structure of the setting apparatus ensures that forces are applied axially and uniformly, preventing glancing blows that could damage the anchor during installation of larger anchors requiring higher forces.
Solution Approach 2:
The setting apparatus is pre-positioned in the power tool chuck before anchor installation. This preliminary positioning ensures that the anchor is securely held and properly aligned before forces are applied, preventing misalignment and glancing blows that could damage the anchor during the driving process.
4Ease of operation
If conventional hand hammering is used, then the anchor can be installed, but the operator's hand is exposed to danger while holding and placing the anchor
Solution Approach 1:
The setting apparatus serves as a protective intermediary that holds the anchor during installation, freeing the operator's hand from direct exposure to danger. The receiver of the setting apparatus securely contains the anchor while impact forces are applied, eliminating the need for the operator to hold the anchor with their hand during the driving process.
Solution Approach 2:
The setting apparatus is designed to be held and positioned by the power tool rather than by hand. The apparatus self-positions within the chuck and self-holds the anchor during installation, transferring the protective function from the operator's hand to the automated positioning system.
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 attachment enables efficient and safe installation of wedge anchors by allowing one-handed operation, reducing physical exertion, and minimizing the risk of accidents, thereby enhancing worker safety and productivity in the construction industry.
Implementation Method 1
a sliding portion arranged to extend over at least a portion of the first end to stabilize the wedge anchor placed in the first end
Implementation Method 2
a power tool is used in a rotary hammer manner to impart combined rotational and axial impact blows to a particular area of material
Data Source
AI summary
Objects of the present invention provide an attachment for power tools that places and set wedge anchors. One embodiment of the present invention is directed to a new and improved attachment apparatus for a rotary-hammer type drill, the attachment including a first anchor setting end, a second attachment end, and a handle portion connecting the setting end to the attachment end. The attachment apparatus can be efficiently and easily mounted to the rotary-hammer type drill to simplify the installation of wedge anchors.