Nailer Strike Plate Impact Absorption
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Solution Overview
Problem
Pneumatic nailers are frequently used as manual impacting devices, but their deflector, which is not designed to withstand repeated impacts, often gets damaged, highlighting the need for a device with an energy-absorbing element that is simple, reliable, lightweight, compact, and has a long useful lifetime without requiring extensive redesign.
Innovation Solution
A fastener impacting device with a strike plate made of stainless steel and a gasket, such as urethane or microcellular polyurethane elastomer, that absorbs impact forces by compressing and distributing the force over a large surface area, reducing the risk of damage to the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the pneumatic nailer housing is used as a manual impacting tool, then the user can avoid retrieving a separate hammer, but the deflector component gets damaged due to repeated impacts
Solution Approach 1:
A strike plate is introduced as an intermediary component between the user's impact force and the deflector. The strike plate absorbs and distributes the impact energy, preventing direct damage to the deflector while allowing the pneumatic nailer to function as both a fastening tool and a manual impacting tool
Solution Approach 2:
The strike plate is positioned on the housing beforehand to cushion and absorb impact forces. This pre-positioned protective element prevents damage to vulnerable components like the deflector before the impact occurs, enabling repeated use as a manual tool without compromising reliability
2Strength
If the deflector is made stronger to withstand impacts, then the tool can be used for manual impacting, but the deflector may interfere with the vented air flow
Solution Approach 1:
The strike plate serves as a mediator that handles all impact forces, allowing the deflector to maintain its original lightweight, air-flow-friendly design. The deflector doesn't need to be strengthened because it never directly receives impact forces, thus avoiding air flow obstruction while still enabling manual impacting capability
Solution Approach 2:
The impacting function is extracted from the deflector and assigned to a separate strike plate component. This separation allows the deflector to focus solely on its original function of directing air flow, while the strike plate handles all impact-related responsibilities
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 device effectively absorbs impact energy, reducing the likelihood of damage to the pneumatic nailer and allowing it to be used as both a fastener driver and manual impacting tool without compromising its structural integrity.
Implementation Method 1
a gasket, such as urethane or microcellular polyurethane elastomer, that absorbs impact forces by compressing and distributing the force over a large surface area
Implementation Method 2
a gasket, such as urethane or microcellular polyurethane elastomer, that absorbs impact forces by compressing
Data Source
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AI summary
A device for impacting a fastener (100) in one embodiment includes a housing (102) with an upper housing portion (108), a middle housing portion, and a side housing portion extending between the upper housing portion (108) and the middle housing portion, a drive cylinder (124) configured to vent within the housing (102), an air passage extending through the housing and including a mouth at the upper housing portion, and a strike plate extending over the upper housing portion (108) and including a top portion positioned apart from the upper housing portion, and a first side extension extending downwardly from the top portion along the side housing portion to a location above and spaced apart from an outwardly extending first surface of the middle housing portion.