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15年も前の事など

« 台風のくる前に・・・ | トップページ | 木製の木星・・・ »

2009年9月 2日 (水)

アルミのリングが破断した?

メールアドレスを貰っている樹登人には連絡をいれておいたのだけれど、リングセーバーのアルミリングと セコイアハーネスのアルミリング(利用者が独自に交換した非正規品)とが競技中に破断した・・・ とのこと。

 幸いけが人は出なかった模様。

 メーカーは特定できていないが、アルミのリング利用者は再点検するよう、アメリカの通販業者から私のところにも連絡が入った。 つまりこれはリコールって訳だ。

Ring_recallnoticeletterv2jpg

 

 但し、今回の破断事故では、直前に点検していたリングが破断したとのこと。 不安のある向きには、品の状態良否にかかわらず販売店で交換に応じる(インボイスなどで購入事実を証明する必要あり)とのこと。
 シェリル・ツリー社、ウエスパー社ともに郵送料$5まで負担するとのこと。

 

 なんか変な連絡が入ったな と思うけど、PL法など裁判意識の進んでいるアメリカらしい販売店の取り組みだなぁ と感心したりもする。 

 

でも、オイラにとっては直球ど真ん中!の連絡だったよ・・・

 結構アルミリング色々と使っているし catface

→ http://www.treeworld.info/f15/aluminium-ring-failure-causes-fall-comp-9934.html#post69042

----- 今日(9月4日)になって更に詳細な連絡が入った -------

Dear Yoshiaki Naruse,
You are receiving this letter because our records indicate that you have purchased one of the following from WesSpur in the past:

    * Small Aluminum Ring (CAR902)
    * Large Aluminum Ring (CAR911)
    * Friction Saver Prusik (CLI211)

      Recently it has come to light that 2 similar rings have failed while in use by a climber. The rings that failed were not supplied by WesSpur Tree Equipment, Inc., but another arborist supply company. The rings that failed were, according to that vendor, not marked (laser etched with a batch number or kN rating) and we do not know if they were made in the same factory as the ones that WesSpur sells. The rings that failed were Kong rings, the ones that we sell are supplied through a different distributor and are not Kong rings. There is some speculation that Kong outsourced the manufacturing of the rings in question to the same factory that supplies our distributor, but we have no evidence of that, and our distributor does not think that this is the case.

      Another issue that has surfaced is that the rings which failed were not individually tested, and possibly not even batch tested. The rings that WesSpur has sold in the past have been batch tested. What this means is that a certain percentage of the rings in each batch are destructively tested. According to our distributor they have never had an aluminum ring break below 6,800 lbs, well above the 5,000 lb that is required. Our distributor does not feel that a recall of marked rings is necessary based on the information that they have. However, we are voluntarily recalling all unmarked aluminum rings. We strongly recommend that you dispose of them permanently. We will refund you for any unmarked rings that were purchased from WesSpur.

      We are confident that the marked rings are safe to use based on information from our vendor. If you have any unmarked rings, please contact us for the refund, we will have your invoice in our records. If you would like new individually tested rings, please contact us for instructions. Going forward we will be selling only individually tested aluminum rings. Individual testing involves proof loading each ring to 60% of the required breaking strength or 3,000 lbs. Of course the cost will be higher due to the amount of manual labor involved, but we feel that it will be a very small price to pay for the added assurance and confidence to the end user.

      One note on testing: individual testing is not necessarily the standard for every product used in tree climbing. Items such as rope, saddles, pulleys and many other items are not generally individually tested, but are still considered very safe due to batch testing. Our vendor has agreed to have all aluminum rings that we buy from them tested individually and will be marking all future rings as individually tested. It should be noted that there have not been problems that we know of with other aluminum rings such as ones used by Buckingham (in friction savers) Petzl, or Weaver (Cougar saddle.) If you have any questions about rings please feel free to call us.

      We apologize for any inconvenience caused by this recall, but we feel it is the prudent thing to do at this point.

      Best Regards,
      Ryan Aarstol WesSpur Tree Equipment, Inc.

 

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コメント

「金物は無印を避けるべし」ですね。シャックルはホームセンターの無印も一部使ってますけど。

うちにあるアルミリングも確認したら、すべて刻印入りと塗装仕上げのみだったのでOKって事ですよね。

だんさん、流石に要点を突いて簡潔なコメントありがとうございます。
 仰るとおり、リコールされるアルミリングは研磨仕上げで刻印なしのものだけですね。 刻印があってかつ事故が起きたとすれば検査基準そのものが変わるということになるんでしょうね。
 今ちょっと気になっているんですが・・・
 米国通販ではシェリルとウエスパーという大手2社が同じ内容でユーザーへ告知していますけれど、国内の販売店はどう対応するんでしょう。
 安全に関係したこういう基本的な姿勢の違いみたいなものが、見えてしまったりする ってのは言い過ぎかもしれませんが catface

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