Segmented Plunger Rod for Compact Caulk Gun in Tight Spaces
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional caulk guns are inefficient in restricted spaces due to their large size and rigid design, limiting precise angle application and versatility when sealing small areas.
Innovation Solution
A modified caulk gun with a shortened tube housing, segmented plunger, and thumb lock/release mechanism, allowing for variable plunger length and precise angle application, featuring a frictional tab and pan-shaped disk for smooth caulk delivery in tight spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a standard rigid piston rod is used in a conventional caulk gun, then the structure is simple and robust, but the device becomes too large for restricted spaces and cannot achieve precise angle application
Solution Approach 1:
The piston rod is divided into multiple segments that can be extended or collapsed. When not in use, the segments collapse to a compact size allowing the caulk gun to fit in restricted spaces. When needed, the segments extend to provide full operational length for caulk application.
Solution Approach 2:
The piston rod transitions from a static rigid structure to a dynamic telescopic structure. The rod can dynamically adjust its length between extended and collapsed states, allowing the caulk gun to adapt between operational mode (extended) and storage/transport mode (collapsed) to fit restricted spaces.
2Adaptability or versatility
If a long rigid piston rod is used to reach the full length of the tube, then the caulk can be delivered consistently, but the device cannot be used at precise angles or in tight spaces
Solution Approach 1:
The piston rod is segmented into multiple collapsible sections that can be stored in a compact configuration. This segmentation allows the rod to fit within the handle housing when retracted, enabling use in tight spaces and at various angles without requiring a full-length extended rod.
Solution Approach 2:
The telescopic piston rod sections are nested within each other when collapsed, similar to nested dolls. This nesting mechanism allows the full-length rod to be compacted into a small space within the handle, providing versatility for restricted space application while maintaining the capability to extend to full length when needed.
3Area of stationary object
If a full-length piston rod is used, then the caulk gun maintains structural simplicity, but the device requires excessive clearance behind the handle for operation
Solution Approach 1:
The piston rod dynamically changes from an extended operational state to a collapsed storage state. During caulk application, the rod extends to provide full leverage and reach. During retraction and storage, the rod collapses to minimize the space required behind the handle, enabling operation in tight spaces with limited clearance.
Solution Approach 2:
The length parameter of the piston rod is changed dynamically between extended and collapsed states. This parameter change allows the device to adapt to different operational requirements - full length for caulk delivery and compact size for storage in restricted spaces with minimal clearance behind the handle.
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 unencumbered use in restricted environments with precise angle application and increased versatility, allowing for efficient use of space behind the gun handle, facilitating smoother and more controlled caulk delivery.
Implementation Method 1
The drive grip and the trigger handle are resisted by a spring that is in a rest position when the trigger handle is released.
Implementation Method 2
a frictional tab with the means to release the pressure on the plunger
Data Source
AI summary
This invention is a gun shaped device used in the application of caulk, paste and or other semi solid high viscosity fluids. The device contains a barrel portion for the tube to be inserted into, and a plunger portion with a flat round metal piece with a fitting that attaches to a set of shortened rods. The set of shortened rods acts as a plunger and goes through a guide toward the back of the handle. The barrel can be shortened for use of smaller tubes of caulk.