Driver Support Section Stress Distribution via Segmented Load Receiving
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Solution Overview
Problem
Stress concentration may occur in the support section of a driver when a part of the load received by the bumper is transmitted to the sub-body via the support section, leading to potential structural issues.
Innovation Solution
Incorporating a connection section that intersects the primary direction of the strike section, with a first receiving section to absorb loads in the primary direction and a second receiving section to manage circumferential loads, thereby distributing stress and reducing concentration in the support section.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the support section supports the bumper directly in the primary direction, then the bumper can restrict the strike section movement, but stress concentration occurs in the support section
Solution Approach 1:
The support section is divided into multiple functional segments: a first receiving section that absorbs loads in the primary direction, a second receiving section that manages circumferential loads, and a connection section that intersects the primary direction. This segmentation distributes the stress pathways and prevents stress concentration in any single location.
Solution Approach 2:
The connection section is disposed in a direction intersecting the first direction (primary direction), introducing a dimensional aspect that distributes loads across multiple spatial dimensions. This prevents stress concentration by spreading forces across a three-dimensional structural framework rather than concentrating them in a single linear path.
2Ease of manufacture
If the support section structure is simplified, then manufacturing is easier, but stress concentration occurs when loads are transmitted
Solution Approach 1:
The support section is designed as an integrated multi-functional structure where the first receiving section, second receiving section, and connection section work together as a unified load distribution system. This universal design handles both primary direction loads and circumferential loads within a single structural assembly, maintaining reliability while avoiding the need for multiple separate components.
Data Source
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AI summary
Provided is a driver configured so as to prevent the concentration of stress at a support section. This driver has: a strike section which moves in a first direction to strike a fastener; and a bumper coming into contact with the strike section and restricting the range of movement of the strike section in the first direction. The driver further has: a support section (13) for supporting the bumper; a connection section (51) connected to the support section (13) and disposed in a direction intersecting the first direction; a drive section supported by the connection section (51) and moving the strike section in a second direction; a first receiving section (92) which, when the strike section moves in the first direction to hit the bumper, receives a load acting on the support section (13) in the first direction; and a second receiving section (93) which, when the strike section moves in the first direction to hit the bumper, receives a load acting on the support section (13) in the circumferential direction about a first centerline of the drive section.