Shelf board slant addition metal fittings 棚板傾斜付加金具

「棚板傾斜付加金具」は、書架の棚板が袖板（棚受）から外れにくくするとともに，棚板に手前から棚奥に向かって傾斜をつけることにより，地震動で棚から資料が飛出すことを抑制する。

"Shelf board slant addition metal fittings", which can be attached later to the existing bookshelf, made a downslope to a shelf board, prevented the lifting from a sleeve plate, suppressed books from flight from shelf due to seismic motion.

既存書架に取付けて，棚からの資料落下を抑制する「棚板傾斜付加金具」を開発・実装し，効果を検証した。「棚板傾斜付加金具」を棚板の正面側にだけ強力な両面テープで取付け、棚板を奥に向かって傾斜させて本の落下を防止するとともに、棚板が棚受から外れにくくする。

   We developed the "Shelf board slant addition metal fittings" to restrain that a book falls from the shelf, for existing bookshelves. We attached these metal fittings to bookshelves and inspected the effectiveness.
   We attach the "Shelf board slant addition metal fittings" to slope the shelf board. These metal fittings are attached on the shelf board side inner side. It is attached on the front side of the bookshelf by a strong double-stick tape.
   Since the "Shelf board slant addition metal fittings" were attached only to the front side, a shelf board inclines into the rearward. Because it is sloping, the fall of the books can be reduced. It can also be restrained that the shelf board comes off from the sleeve plate.

地震動による上下の揺れで棚板がずれることを防ぎ、棚板に傾斜をつけて落下軽減対策とするため、後付けできる「棚板傾斜付加金具」を考案、製作した。既存書架の棚板にこの金具を装着して棚板に約３度の傾斜をつけるとともに、袖板からの浮上りを押えるものである。
地震動特性（振幅・経時・周期）や揺れの方向、棚上の資料配置にも影響を受けるので一概にはいえないが、東日本大震災と同じぐらいの地震の場合でも、資料が一度に薙ぎ払われるように落下することを防ぎながら、一部に極端な力が加わった場合は、「棚板傾斜付加金具」自身が変形することで棚板・袖板への影響を最小限に抑えて書架を守る構造とした。

     This way prevented a shelf board from shifting by the vertical tremble, and it was sloped. For this "Shelf board slant addition metal fittings", which can be attached later to the existing bookshelf, was devised and produced as a test.
     The "Shelf board slant addition metal fittings" were equipped to the shelf board of the existing single pillar bookshelf. This made a slope of about 3 degrees to a shelf board and suppressed the lifting from a sleeve plate.
   The structure of bookshelves is affected by the earthquake motion characteristic (amplitude, temporality, cycle), the direction of a tremor, and the position to place books on the shelf. Even if the same level as the Great East Japan Earthquake happened and pressure were added to a part of the shelf, the "Shelf board slant addition metal fitting" itself would be transformed and help minimizing the influence on a shelf board and a sleeve plate. By this way, the bookshelf could be protected.

* 特許情報プラットフォーム「J-PlatPat」で、検索フォームに 3178330 と入力し、検索ボタンをクリックします。検索結果一覧の登録番号 "実録3178330" をクリックします。

Shelf board slant addition metal fitting ( J-PlatPat Certificate of utility model registration No.3178330 * ）

* On the English page of Japan Platform for Patent Information "J-PlatPat", enter 3178330 in the Search form and click the Search button. Click Registration number "JP,3178330,U" on the Search Result List.

2. 棚板傾斜付加金具の開発と検証. 大学図書館研究. 2013，Vol.97，p.45-48

5. 東北大学附属図書館工学分館．“震災後の開館・サービス状況” 2012年11月18日．(オンライン)

Tohoku University Library Engineering Library. "Opening/ Service situation after the Earthquake Disaster" November 18, 2012. (on-line)

1	概説	Outline
2	目的とアイディア	Purpose and Idea
3	関連項目	Related Item
4	外部リンク	Outside Link