{"id":8524,"date":"2018-11-20T08:00:35","date_gmt":"2018-11-19T23:00:35","guid":{"rendered":"https:\/\/norimen.net\/wordpress\/?p=8524"},"modified":"2026-05-15T11:39:28","modified_gmt":"2026-05-15T02:39:28","slug":"helmet-lifespan-construction","status":"publish","type":"post","link":"https:\/\/norimen.net\/en\/helmet-lifespan-construction\/","title":{"rendered":"What Is the Service Life of Construction Site Helmets? An Explanation of When to Replace Them and Disposal Standards"},"content":{"rendered":"

Hello, everyone.<\/p>\n

This is Enta.<\/p>\n

\u5148\u65e5\u304b\u3089\u3001\u306a\u305c\u304b\u30af\u30ec\u30fc\u30f3\u306e\u514d\u8a31\u3092\u53d6\u308a\u306b\u6765\u3066\u3044\u307e\u3059\u3002<\/p>\n

\"Crane<\/p>\n

5t\u4ee5\u4e0a\u306e\u79fb\u52d5\u5f0f\u30af\u30ec\u30fc\u30f3\u3067\u3059\u3002<\/p>\n

\u306a\u305c\u304b\u3063\u3066\u3002\u3002\u3002\u6765\u5e74\u304b\u3089\u3046\u3061\u306e\u793e\u54e1\u306b\u3082\u53d6\u3063\u3066\u304d\u3066\u3082\u3089\u3046\u306e\u3067\u3001\u5148\u306b\u79c1\u304c\uff57<\/p>\n

\u5225\u306b5t\u4ee5\u4e0a\u306e\u30e9\u30d5\u30bf\u30fc\u30af\u30ec\u30fc\u30f3\u3092\u8cb7\u3046\u3068\u304b\u305d\u3093\u306a\u6c17\u306f\u30b5\u30e9\u30b5\u30e9\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n

\u305f\u3060\u30015t\u4ee5\u4e0a\u540a\u308c\u308b\u3063\u3066\u601d\u3046\u3068\u3060\u3068\u306a\u3093\u3060\u304b\u30ab\u30c3\u30b3\u3044\u3044\u3058\u3083\u306a\u3044\u3067\u3059\u304b\uff01\uff01\uff1f<\/p>\n

\n

But that's beside the point.<\/p>\n

Do you wear a helmet?<\/p>\n

\u307e\u3041\u5f53\u7136\u306b\u4f7f\u7528\u3057\u3066\u3044\u308b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n

\"Safety<\/p>\n

Are you fastening your chin strap?<\/p>\n

If you don't fasten the chin strap, the helmet could come off in the event of a fall, and then it would all be for nothing.<\/p>\n

People often hang their helmets on the brim of their hats during the summer to keep from getting sunburned.<\/p>\n

This is just ridiculous. To be honest, as a director, I don't even want to talk to someone at that level.<\/p>\n

And that\u2019s especially true if the craftsman is in his or her 30s.<\/p>\n

\u6614\u306f\u76e3\u7763\u306e\u7acb\u5834\u3067\u3001\u30d8\u30eb\u30e1\u30c3\u30c8\u3082\u307e\u3068\u3082\u306b\u51fa\u6765\u306a\u3051\u308c\u3070\u73fe\u5834\u306b\u6765\u306a\u3051\u308c\u3070\u826f\u3044\u306e\u306b\u3063\u3066\u601d\u3063\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n

It gets annoying having to say this every single time, doesn't it? (But I'll say it anyway.)<\/p>\n

 <\/p>\n

Isn't that helmet a bit worn out?<\/p>\n

Isn't it a little yellowed?? lol<\/p>\n

Actually, it\u2019s kind of hard to swap them out when the stickers for each qualification are already on them.<\/p>\n

Sometimes those stickers serve as proof of certification. (Various certification stickers like the ones below)<\/p>\n

 <\/p>\n

\"Crane<\/p>\n

People who have a lot of stickers on their stuff are especially reluctant to change them\u2014it\u2019s like a badge of honor.<\/p>\n

\"Rank<\/p>\n

It\u2019s just like a rank insignia\u2014that\u2019s the image you get when you see it on a helmet, right?<\/p>\n

That's exactly why they're even more reluctant to replace their helmets.<\/p>\n

 <\/p>\n

However, helmets do have an expiration date.<\/p>\n

Five years at most<\/strong><\/span>That's it.<\/p>\n

Japan Helmet Manufacturers Association<\/a>
\n<\/span><\/span><\/strong><\/span>(It freaks me out that there's a club or association for just about everything lol)<\/p>\n

It's listed in the Q&A section here.<\/p>\n

 <\/p>\n

The Midori Safety website also includes the following information:<\/p>\n\n\n\n\n\n\n
Material<\/th>\nDisposal and Replacement Criteria<\/th>\n<\/tr>\n
Made of ABS, PC, and PE (thermoplastic resins)<\/td>\nWithin three years, even if no abnormalities are found<\/td>\n<\/tr>\n
Made of FRP (thermosetting resin)<\/td>\nWithin 5 years, even if no abnormalities are found<\/td>\n<\/tr>\n
Mounting Body<\/td>\nWithin one year, even if no abnormalities are found<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

According to the table above, the helmet itself lasts 3 to 5 years, but since the headband lasts only 1 year, it needs to be replaced after 1 year.<\/p>\n

\"Helmet
https:\/\/www.midori-helmet.jp\/dictionary\/6-2\/<\/figcaption><\/figure>\n

Please refer to items 2 through 4 in the table above.<\/p>\n

The expiration date for this part is one year, isn't it...<\/p>\n

 <\/p>\n

Replace it at least once a year to protect your life<\/strong><\/span>It might be safer to do that, in many ways.<\/p>\n

And, actually, there are plenty of medal stickers for sale online.<\/p>\n

\u30b0\u30fc\u30b0\u30eb\u691c\u7d22\u3067\u300c\u30d8\u30eb\u30e1\u30c3\u30c8 \u8cc7\u683c\u30b7\u30fc\u30eb\u300d\u3067\u691c\u7d22\u3057\u3066\u307f\u3066\u4e0b\u3055\u3044\u3002<\/p>\n

\u6ca2\u5c71\u3042\u308a\u307e\u3059\u3088\u3002<\/p>\n

 <\/p>\n

See you later<\/p>","protected":false},"excerpt":{"rendered":"

Hello, everyone. This is Enta. For some reason, I\u2019ve been taking classes to get my crane operator\u2019s license for the past few days. It\u2019s for mobile cranes weighing 5 metric tons or more. As for why\u2026 well, since we\u2019re going to have our employees get their licenses starting next year, I figured I\u2019d go first, lol. It\u2019s not like I\u2019m planning to buy a rough-terrain crane weighing 5 metric tons or more or anything like that\u2026<\/p>","protected":false},"author":2,"featured_media":8533,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[111],"tags":[89,317,1888,1889,1890,1891],"class_list":["post-8524","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-safety","tag-89","tag-317","tag-1888","tag-1889","tag-1890","tag-1891"],"acf":[],"yoast_head":"\n\u5efa\u8a2d\u73fe\u5834\u306e\u30d8\u30eb\u30e1\u30c3\u30c8\u8010\u7528\u5e74\u6570\u306f\uff1f\u4ea4\u63db\u6642\u671f\u3068\u5ec3\u68c4\u57fa\u6e96\u3092\u89e3\u8aac - 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