Driving Tool Engagement Alignment for Reliable Striking Force
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Solution Overview
Problem
The second engaging portion may engage with a first engaging portion that is not the original engagement target in existing driving tools, leading to inefficiencies and potential durability issues.
Innovation Solution
A driving tool design featuring a striking unit with specific and normal first engaging portions on the driver blade and specific and normal second engaging portions on a rotating portion, ensuring precise engagement and separation to maintain optimal striking force and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the second engaging portion engages with any first engaging portion, then the striking unit can be actuated in the second direction, but the second engaging portion may engage with the wrong first engaging portion causing inefficiency and durability issues
Solution Approach 1:
The patent divides the engaging portions into two distinct groups: normal first engaging portions (61-70) and a specific first engaging portion (71), with corresponding normal second engaging portions (52-61) and a specific second engaging portion (51). This segmentation ensures that each second engaging portion has a designated target, preventing wrong engagements while maintaining continuous operation capability.
Solution Approach 2:
The patent applies local quality by giving different functional characteristics to different engaging portions. The specific second engaging portion (51) is designed to engage only with the specific first engaging portion (71), while normal second engaging portions (52-61) engage with normal first engaging portions (61-70). This localized differentiation ensures accurate engagement without compromising overall system productivity.
2Force
If the second engaging portion engages with the correct first engaging portion, then striking force is maximized, but the structure becomes more complex with specific and normal engaging portions
Solution Approach 1:
The patent employs asymmetry in the engaging portion design where the specific second engaging portion (51) and specific first engaging portion (71) have a unique positional relationship that differs from the normal engaging portions. This asymmetric configuration ensures that only the correct pairing can engage properly, maximizing striking force while the repetitive normal portions minimize the perceived complexity.
Data Source
AI summary
A driving tool capable of making a second engaging portion engage with a first engaging portion which is an original engaging target when a rotating portion is rotated in a state where a striking unit is stopped between a first position and a second position is provided. The driving tool includes a striking unit 12, a wheel 50 configured to actuate the striking unit 12, a plurality of first engaging portions provided on the striking unit 12, and a plurality of second engaging portions provided on the wheel 50. The plurality of first engaging portions includes first engaging portions 61 and 62 and first engaging portions 63 to 71. The plurality of second engaging portions includes a second engaging portion 51 engaging with the first engaging portions 61 and 62 when the wheel 50 is rotated in a state where the striking unit 12 is stopped at the second position and second engaging portions 52 to 60 engaging with the first engaging portions 63 to 71 when the wheel 50 is rotated in a state where the striking unit 12 is stopped at the second position. An adjustment mechanism 17, which makes the second engaging portion 51 engage with the first engaging portions 61 and 62 and makes the second engaging portions 52 to 60 engage with the first engaging portions 63 to 76 when the wheel 50 is rotated in a state where the striking unit 12 is stopped between the first position and the second position, is provided.