Patent application for Pin-less saya (1)
As we reported in a previous article, as we continued to manufacture conventional sayas, we gradually began to encounter many problems.
I started to think of a structure that would prevent the knife from falling off without a pin, came up with one structure, failed, gave up, came up with another structure, failed again, and this was repeated many times.
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ピンレスサヤの特許申請 (1)
以前の記事でお伝えした通り、従来方式のサヤの製造を続けていくうち、次第にたくさんの問題が起きるようになってきました。
僕は『ピンがなくても包丁から抜け落ちにくい構造』を考え始め、ある構造を思いついては失敗して諦め、また別の構造を思いついては失敗し。。ということを何度も何度も繰り返しました。