Removable Riveting Tool Head With Slider Locking Fastener
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Solution Overview
Problem
The existing tools for installing rivets require a long and complicated process to change the jaw, necessitating a specialist technician, which is inefficient and limits user flexibility.
Innovation Solution
A portable tool with a removable head, featuring a hollow body, actuator, C-shaped head, and a fastening system with sliders and brakes, allowing quick and easy head replacement without specialized tools or technicians, and a hydraulic system with adjustable pressures for riveting operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional fixed jaw design is used, then the tool structure is simple, but the head replacement process is long and complicated requiring specialist technicians
Solution Approach 1:
The head is segmented from the body through a modular design, allowing the head to be independently removed and replaced. The fastening system uses separate sliders that can be independently actuated to release the head, enabling quick replacement without affecting the entire tool structure.
Solution Approach 2:
The fastening system transitions from a static locked state to a dynamic release state through actuator-driven sliders. The sliders can move between engaged and disengaged positions, providing dynamic control over head retention and enabling rapid replacement by non-specialist users.
2Productivity
If a specialized technician is required for jaw changes, then the jaw replacement is reliable, but the process time is increased and user flexibility is limited
Solution Approach 1:
The fastening system is designed to be self-service friendly with clear operational states. The sliders provide visual and tactile feedback for engagement and disengagement, allowing users to confidently perform head replacements without specialized training while maintaining reliable connections during operation.
Solution Approach 2:
The system changes the operational parameter from requiring specialized skill to requiring simple user input. The actuator mechanism transforms complex mechanical manipulation into a simple pressing or sliding action, enabling rapid replacement by any user while maintaining connection reliability through the engineered fastening geometry.
3Strength
If a simple fastening mechanism is used, then the device complexity is low, but the head retention security is insufficient
Solution Approach 1:
The fastening system merges multiple functions into the slider mechanism: mechanical retention through the arc-shaped face engagement with the channel, positioning through the guided movement path, and locking through the brake mechanism. This combination provides strong head retention while maintaining relatively simple overall structure.
Solution Approach 2:
The arc-shaped face of the slider acts as an intermediary between the actuator force and the head retention requirement. This geometric intermediary converts linear slider movement into radial engagement forces that securely hold the head while allowing controlled release, providing strong retention without complex locking mechanisms.
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 rapid and effortless head replacement and riveting operations, reducing the need for specialist technicians and simplifying the process, while providing adjustable pressure settings for various riveting tasks.
Implementation Method 1
the brake is in the form of a ball mounted on a spring in the shoe, where the spring presses the ball against the slider
Implementation Method 2
an O-ring which is arranged in a channel around the barrel and which rubs against the surface of the bore of the shoe
Data Source
AI summary
A portable tool comprising a hollow body delimiting two chambers and comprising a shoulder and a barrel extending from the shoulder. A piston slides in the chambers and a stem is secured to the piston and is accommodated in the barrel. A C-shaped head with a first end forms a shoe which presses against the shoulder and in which is created a bore into which the barrel fits, and with a second end facing the free end of the stem. A fastening system comprises a channel on the barrel perimeter. Two sliders are slidably mounted on the shoe parallel to a plane of movement which is perpendicular to the axis of the barrel. Each slider has an arc shaped face and movable between a retracted position in which the face is accommodated in the channel and an extended position in which the face is outside the channel.