At that time, among the textile manufacturers located in the Owari region it was considered common sense to affix iron bars over the windows of the workers' dormitories and lock the doors (at night) so as to prevent the female workers from running away (to break their contracts).
当時の尾張地方の織物業者の間では、女工の逃亡防止のため、寄宿舎の窓に鉄格子をはめ、入口を施錠することが常識となっていた。