Exhaust Gas Deflector Mounting System for Pneumatic Fastener Tools
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Solution Overview
Problem
Conventional pneumatically-powered fastener-driving tools have an aesthetically unpleasing external appearance due to externally visible fasteners used to mount the exhaust gas deflector component, which also prevents the incorporation of indicia like logos or model numbers on the external surface.
Innovation Solution
An internally disposed fastener is used to secure the exhaust gas deflector component to the upper cap member of the pneumatically-powered fastener-driving tool, eliminating the need for externally visible fasteners and allowing for the incorporation of indicia on the external surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If externally visible fasteners are used to mount the exhaust gas deflector component, then the mounting structure is simple and reliable, but the external appearance becomes aesthetically unpleasing and indicia cannot be incorporated on the external surface
Solution Approach 1:
The fastener is nested within the upper cap member, with only the fastener head visible on the external surface while the shaft portion is concealed inside the cap. This nesting arrangement hides the fastening mechanism from view, allowing the deflector component to maintain a clean external appearance with indicia while still providing secure mounting.
Solution Approach 2:
The upper cap member acts as an intermediary structure that conceals the fastener shaft while providing mounting functionality. The cap member mediates between the need for visible fastening and the need for aesthetic appearance, allowing the fastener to be functional yet hidden from external view.
2Loss of information
If externally visible fasteners are used to secure the exhaust gas deflector component, then the fastening is reliable and simple, but the external surface cannot display company logos, tool names, or model numbers
Solution Approach 1:
The fastener shaft is nested within the upper cap member, concealing it from external view. This allows indicia to be displayed on the external surface of the deflector component and cap member without being obscured by fastener structures, while the nested fastener shaft maintains secure fastening functionality.
3Strength
If the fastener is positioned centrally through the deflector component, then the mounting is structurally sound, but the fastener is externally visible and detracts from aesthetic appearance
Solution Approach 1:
The fastener shaft is nested within the upper cap member, with only the head visible externally. This nested arrangement maintains the structural integrity and central positioning of the fastener for strong mounting, while concealing the shaft portion that would otherwise detract from the aesthetic appearance of the external surface.
Solution Approach 2:
The fastener structure has different visibility characteristics at different locations: the fastener head is visible on the external surface for access and indication, while the shaft portion is concealed within the cap member. This local differentiation allows both aesthetic appearance and functional integrity to be maintained.
Data Source
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AI summary
A new and improved mounting system, for fixedly mounting an exhaust gas deflector component upon the upper cap member of a pneumatically-powered fastener-driving tool, comprises a fastener disposed internally within the upper cap member of the pneumatically-powered fastener-driving tool and not extending externally through the exhaust gas deflector component. In this manner, not only does the exhaust gas deflector component of the pneumatically-powered fastener- driving tool exhibit an aesthetically pleasing external appearance, but in addition, the absence of any externally visible fastener structure, extending through the exhaust gas deflector component, permits various indicia, such as, for example, the company logo, to effectively be incorporated upon the external surface portion of the exhaust gas deflector component.