JP3707670B2 - Article placement shelf - Google Patents

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JP3707670B2
JP3707670B2 JP2000259978A JP2000259978A JP3707670B2 JP 3707670 B2 JP3707670 B2 JP 3707670B2 JP 2000259978 A JP2000259978 A JP 2000259978A JP 2000259978 A JP2000259978 A JP 2000259978A JP 3707670 B2 JP3707670 B2 JP 3707670B2
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JP2002065371A (en
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一 石川
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日本ファイリング株式会社
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Description

【０００１】
【発明の属する技術分野】
本願発明は、書籍、ファイル等の書籍類、その他の物品が置かれる棚板と、該棚板の高さ位置を調節自在とするための調節部を有する側板とを備えた物品載置棚に関する。
【０００２】
【従来の技術】
従来、棚板の高さ位置を調節自在とするための調節部を有する側板を備えた種々の物品載置棚が知られている。例えば、特開平８−１９１７２４号公報に開示された書棚では、金属製の棚柱が、左右の側板の内側面に上下方向に延びて互いに平行に埋め込まれ、該棚柱に上下方向に間隔をおいて設けられた多数の係止孔に、円筒形の棚受具が取外し可能に係止される。そして、各側板の棚受具が、棚板の下面に設けられた凹溝に嵌入されることで、棚板が１対の側板に支持される。
【０００３】
【発明が解決しようとする課題】
ところで、前記従来の書棚において、棚板を所望の高さ位置に支持するためには、棚受具を所望する棚板の高さ位置の係止孔に係止させて、その後、棚板の下面に設けられた凹溝に棚受具を嵌入させる必要があり、また既にセットされている棚板の高さ位置を調節するためには、一旦、棚板を外して、次いで棚受具を係止孔から外し、その棚受具を所望の高さ位置の係止孔に係止させて、その後、棚板の凹溝に棚受具を嵌入させることになる。
【０００４】
このように、棚板の高さ位置を調節する場合、棚受具を係止孔に係止させる作業、および棚受具を棚板の下面の凹溝に嵌入させる作業、場合によっては、さらに棚受具を係止孔から取り外す作業が必要となって、棚板の高さ位置の調節は時間がかかる作業となっていた。
【０００５】
そこで、棚受具を使用することなく、棚受部を、側板の内側面に設けられて前後方向に延びる溝を設けることにより形成することも考えられるが、棚受部の支持強度を確保するためには、溝の深さを深くする必要があるので、その深い溝が形成される側板の強度を確保する必要上、側板の板厚が厚くなって、書棚の左右方向の寸法が大きくなり、さらに重量も増大する難点がある。
【０００６】
本願発明は、このような事情に鑑みてなされたものであって、請求項１〜請求項７記載の発明は、棚板の高さ位置の調節作業が短時間で済み、しかも棚の大型化および重量増を招来することなく十分な支持強度の棚受部を有する物品載置棚を提供することを共通の目的とする。そして、請求項２記載の発明は、さらに、スリットの前後方向の寸法を小さくして、側板の強度を向上させることを目的とし、請求項３記載の発明は、さらに、棚板を支持する単一の背板の強度の低下を抑制することを目的とし、請求項４記載の発明は、さらに、棚受部において前方への移動を規制して、棚板を安定した状態で支持することを目的とし、請求項５記載の発明は、さらに、棚受部における前方への移動規制部分の形成を容易にし、かつ同一段の棚受部においても２枚の棚板を共通の背板に安定した状態で支持し得ることを目的とし、請求項６記載の発明は、複式の物品載置棚のコスト削減を図ることを目的とし、請求項７記載の発明は、さらに、棚受部の欠け等の破損を確実に防止することを目的とする。
【０００７】
【課題を解決するための手段および発明の効果】
本願の請求項１記載の発明は、棚板と、第１棚受部を有して前記棚板の高さ位置を調節自在とするための調節部が設けられた複数の側板とを備え、１対の前記側板の間に架設された前記棚板の両側部が前記１対の側板の前記第１棚受部にそれぞれ支持されることで前記棚板が前記１対の側板に支持される物品載置棚において、前記第１棚受部は、前記各側板に上下方向に間隔をおいて複数段設けられ、前記各第１棚受部は、前記各側板を左右方向に貫通して前記各側板の前方に開放すると共に前後方向に延びる第１スリットを設けることにより前記各側板の前部に形成され、前記棚板の前記各側部は、前記第１スリットに対して前方から前後方向に抜き差し自在な第１凸部を有し、前記第１棚受部は前記側板の板厚の略全厚みを利用して前記第１凸部を支持し、前記第１凸部が前記第１スリットに差し込まれることで前記棚板が前記第１棚受部に支持されると共に、前記第１凸部の前記第１スリットに対する前方からの抜き差しにより、前記棚板が前記１対の側板に対して前方から前後方向に抜き差しされる物品載置棚である。
【０００８】
この請求項１記載の発明によれば、棚板を１対の側板間で架設するときは、棚板が１対の側板間に挿入され、棚板の各側部の第１凸部が、所望の高さ位置にある第１スリットに、前方から後方に向かって差し込まれることで、棚板が第１棚受部に支持される。また、棚板の高さ位置を調節するときは、棚板が前方に引き出されて、第１凸部が第１スリットから抜き出され、その後、第１凸部が所望の高さ位置にある別の第１スリットに差し込まれて、棚板が新たな第１棚受部に支持される。また、第１凸部が第１棚受部に支持された状態で、第１棚受部は側板の板厚の略全厚みを利用して凸部を支持する。
【０００９】
その結果、棚板をセットするときは、第１凸部を所望の高さ位置にある第１スリットに前方から差し込み、また、棚板の高さ位置を調節するときは、第１凸部を第１スリットから前方に抜き出して、その後、所望の高さ位置にある別の第１スリットに差し込めばよいため、棚板のセットおよび棚板の高さ位置の調節が短時間でできる。
また、棚板は、側板の板厚の略全厚みを利用する第１棚受部により支持されるので、側板の板厚が、第１棚受部の支持面の厚みよりも大きく厚くなることがなく、したがって物品載置棚の大型化および重量増を招来することなく、第１棚受部の十分な支持強度を確保できる。
【００１６】
請求項２記載の発明は、請求項１記載の物品載置棚において、前記物品載置棚は、前記１対の側板の間に位置する背板を備え、該背板には、前記複数の第１棚受部にそれぞれ対応する高さ位置に設けられた複数段の第２棚受部が設けられ、該各第２棚受部は、背板を前後方向に貫通すると共に左右方向に延びる第２スリットを設けることにより形成され、前記棚板の後部は、前記第２スリットに対して前後方向に抜き差し自在な第２凸部を有し、該第２凸部が前記第２スリットに後方に突出しないように差し込まれることで、前記棚板が前記第２棚受部に支持され、前記第２凸部の前記第２スリットに対する前方からの抜き差しにより、前記棚板が前記背板に対して前方から前後方向に抜き差しされるものである。
【００１７】
この請求項２記載の発明によれば、棚板の両側部の第１凸部が１対の側板にそれぞれ支持され、その後部の第２凸部が背板に支持されるので、棚板に置かれた物品の重量による荷重が、第１凸部および第２凸部に分散され、側板および背板に支えられる。これにより、第１凸部が負担する荷重が減少するため、第１凸部の前後方向の寸法を短くすることができ、したがって第１凸部が支持される第１棚受部を形成する第１スリットの前後方向の寸法を短くすることが可能となって、第１スリットの形成による側板の強度低下を抑えることができる。さらに、棚板が、１対の側板の第１棚受部および背板の第２棚受部で支持されるにも拘わらず、棚板のセットおよび高さ位置の調節のときは、棚板を第１スリットおよび第２スリットに対して、前方から差し込んだり抜き出したりすればよい。
また、第２凸部が第２スリットに差し込まれて、棚板が第２棚受部に支持されることにより、最大限で、背板の板厚の略全厚みを利用して各第２凸部を支持することが可能である。
【００１８】
その結果、棚受部を形成する第１スリットの寸法を短くして、第１スリットの形成による側板の強度低下を抑えることができるので、側板の板厚を薄くすることが可能となって、物品載置棚が小型化および軽量化される。さらに、棚板が、側板および背板で支持されるにも拘わらず、第１スリットおよび第２スリットに対して、棚板を前方から抜き差しするのみで、棚板のセットおよび棚板の高さ位置の調節が短時間でできる。また、第２凸部は、背板に第２スリットを設けることにより形成される第２棚受部に支持されることから、最大限で、背板の板厚の略全厚みを利用して各第２凸部を支持することが可能となるので、棚板は背板の板厚の厚みにより安定した状態で支持され、しかも全厚みを利用することにより、背板の板厚も薄くすることが可能となって、物品載置棚の小型化および軽量化ができる。
【００１９】
請求項３記載の発明は、請求項２記載の物品載置棚において、前記各第２スリットは、上下方向に延びる仕切部により左右方向に分けられた複数の部分スリットからなり、前記各部分スリットに前記第２凸部が差し込まれるものである。
【００２０】
この請求項３記載の発明によれば、第２スリットが設けられた背板は、部分スリットの間に位置する仕切部で上下方向に連続するため、背板が上下方向に複数の第２スリットを有するにも拘わらず、この仕切部によって背板の強度の低下を抑制できる。
【００２１】
その結果、複数の第２スリットを有する背板は、部分スリットの間に設けられた仕切部により強度の低下が抑制されるので、隣接する第２スリットの形成間隔を狭くしても、棚板を支持するのに十分な強度が得られ、棚板の高さ位置の最小調節量、すなわち調節ピッチの設定の自由度が大きくなる。
【００２７】
請求項４記載の発明は、請求項２または請求項３記載の物品載置棚において、前記第２凸部に設けられた被係止部が、第２棚受部に設けられた係止部と係合することにより、前記棚板の前方への移動が規制されるものである。
【００２８】
この請求項４記載の発明によれば、棚板に設けられた第２凸部の被係止部が、背板に設けられた第２棚受部の係止部に係合するので、棚板は、その第１凸部が第１棚受部に差し込まれているだけであるにも拘わらず、前方に移動しにくくなって、前方に開放している第１スリットから第１凸部が抜け出しにくくなる。
【００２９】
その結果、棚板が第１，第２棚受部に支持された状態では、棚板の被係止部と第２棚受部の係止部とが係合するので、棚板が前方に移動しにくくなって、棚板を所定位置に安定して保持でき、棚板上で物品を移動させる際等に棚板が移動することはない。
【００３０】
請求項５記載の発明は、請求項２ないし請求項４のいずれか１項記載の物品載置棚において、前記物品載置棚は、前後方向の反対方向をそれぞれ前面とする第１棚部および第２棚部を有する複式の棚であり、前記棚板は、第１棚板および第２棚板からなり、前記背板は、前記第１棚部および前記第２棚部に共通の単一の背板であり、前記第２凸部に設けられた凹溝が、前記第２棚受部に設けられた１条の突条と係合することにより、前記棚板の前方への移動が規制され、前記第１棚板の前記凹溝と前記第２棚板の前記凹溝とは、前記凸条と左右方向の異なる位置で係合し得るものである。
【００３１】
この請求項５記載の発明によれば、各第２凸部の凹溝が第２棚受部の凸条に係合するので、棚板は、その第１凸部が第１棚受部に差し込まれているだけであるにも拘わらず、前方に移動しにくくなって、前方に開放している第１スリットから第１凸部が抜け出しにくくなる。さらに、第２棚受の１条の凸条が、第１，第２棚板で共用されるため、第１，第２棚板の凹溝が係合する凸条を別々に設ける必要がなく、加工形成が容易であると共に、背板の板厚を厚くする必要もない。
【００３２】
その結果、棚板が第１，第２棚受部に支持された状態では、棚板の凹溝と第２棚受部の凸条とが係合するので、棚板が前方に移動しにくくなって、棚板を所定位置に安定して保持でき、棚板上で物品を移動させる際等に棚板が移動することはない。さらに、第２棚受部には凸条を１条設けるのみであるので、凸条の加工形成が容易となり、しかも凸条を形成するために背板の板厚を厚くする必要もないので、背板の板厚を薄くできて、物品載置棚の小型化および軽量化ができる。
【００３３】
請求項６記載の発明は、請求項２ないし請求項４のいずれか１項記載の物品載置棚において、前記物品載置棚は、前後方向の反対方向をそれぞれ前面とする第１棚部および第２棚部を有する複式の棚であり、前記棚板は、第１棚板および第２棚板からなり、前記背板は、前記第１棚部および前記第２棚部に共通の単一の背板であり、前記第１棚板の前記第２凸部および前記第２棚板の前記第２凸部は、前記第２棚受部にて、左右方向の異なる位置で支持され、前記第１棚板および前記第２棚板は、同一仕様の棚板であるものである。
【００３４】
この請求項６記載の発明によれば、背板の板厚により規定される第２棚受部の支持面上の左右方向の同一位置で、同一段に架設された第１棚板および第２棚板の第２凸部の後面同士が対向することがなく、最大限で、背板の板厚の略全厚みを利用して各第２凸部を支持することが可能である。その結果、同一段の棚受部においても、第１，第２棚板は背板の板厚の厚みにより安定した状態で支持され、しかも全厚みを利用することにより、背板の板厚も薄くすることが可能となって、物品載置棚の小型化および軽量化ができる。さらに、第１，第２棚板は同一仕様であるため、量産化効果を発揮できる。その結果、量産化効果により複式の物品載置棚のコスト削減ができる。
【００３５】
請求項７記載の発明は、請求項１ないし請求項６のいずれか１項記載の物品載置棚において、前記各側板の前面には、前記第１スリットの、前方に開放されている部分を覆う前面化粧部材が、着脱自在に取り付けられているものである。
【００３６】
この請求項７記載の発明によれば、前面化粧部材により、側板の前縁にある第１棚受部が覆われるので、物体が第１棚受部に接触するのが防止される。また、各化粧部材は着脱自在であるので、該各化粧部材の交換等のメンテナンスが容易である。さらに、前面化粧部材によりスリットの前方に開放されている部分が覆われるため、棚板が前方に抜け出すことが防止される。そして、着脱自在とされた前面化粧部材を外すことにより、棚板の高さ位置を調節することができる。
【００３７】
その結果、第１棚受部が前面化粧部材により覆われて、物体が第１棚受部に接触するのが防止されるので、物体の接触により第１棚受部に欠け等の損傷が発生するのを防止できる。また、各化粧部材は着脱自在であるのでメンテナンスが容易である。さらに、前面化粧部材を取り付けることにより、第１スリットの、前方に開放されている部分が覆われるため、棚板が前方に抜け出すことが防止される。そして、棚板の高さ位置の調節は、着脱自在の前面化粧部材を外すことにより容易にできる。
【００３８】
なお、この明細書において、前後左右は、物品載置棚を正面から見たときの前後左右を意味し、第１棚部においては、図１において矢印A1方向に見たときの前後左右であり、第２棚部においては、図１において矢印A2方向に見たときの前後左右を意味するものとする。また、左側部および右側部を区別する必要がないときは、それらを側部と総称し、左端および右端を区別する必要がないときは、それらを側端と総称する。
【００３９】
【発明の実施の形態】
以下、本願発明の実施例を図１ないし図１４を参照して説明する。
図１は、本願発明の物品載置棚の実施例である書棚１の一部分解された状態を示す斜視図であり、図３は書棚１の部分正面図である。この書棚１は、例えば図書館で使用されるものであり、図１において、前後方向の反対方向である矢印A1から見たときの前面を第１前面とし、矢印A2から見たときの前面を第２前面とする組立式の３連複式書棚である。書棚１は、４枚の側板２，３と、３枚の同一仕様の背板４と、３０枚の同一仕様の棚板５，６、６枚の同一仕様の底板７，８、３枚の同一仕様の天板９、３台の同一仕様の基部10とを備える。
【００４０】
このうち、側板２，３は、書棚１の左右両端の２枚の同一仕様の端部側板２と、両端部側板２，２の間に配置される２枚の同一仕様の中間側板３とからなり、中間側板３は端部側板２の２倍の板厚を有する。また、図６のＩＶ−ＩＶ線での部分断面図である図４、図４の部分拡大図である図５、および図３のＶＩ−ＶＩ線断面図である図６に図示されるように、各棚板５，６の下面には、左右方向に所定長さを有し、前後方向に所定幅の１条の凹溝11が設けられ、該凹溝11の前壁面および後壁面に設けられた円弧状の１対の係合溝11a，11bに、棚板５，６および底板７，８に載置された物品である書籍やファイル等の書籍類の倒れを防止するための、バネ鋼からなるブックサポート12の１対の係合部が、ブックサポート12自体が有する弾性力を利用して、それぞれ係合する。
【００４１】
また、書棚１は、端部側板２および中間側板３、両中間側板３，３、そして中間側板３および端部側板２からなる３組の１対の隣接する側板の間で、前後方向の中央部に配置された単一の背板４を境に、第１前面側の第１棚部および第２前面側の第２棚部を有する。第１棚部は、第１底板７および天板９の間に配置されて各組の１対の側板２，３、３，３の間に架設された５枚の第１棚板５により仕切られた６段の棚段を有し、同様に、第２棚部は、第２底板８および天板９の間に配置されて各組の１対の側板２，３、３，３の間に架設された５枚の第２棚板６により仕切られた６段の棚段を有する。
【００４２】
ここで、端部側板２および中間側板３、背板４および棚板５，６は、竹の集成材により形成されている。具体的には、図１の部分拡大図である図２に図示されるように、端部側板２は、竹の繊維の方向に細長い板状の細片が、書棚１が組み立てられた状態で、上下方向に多数積層されて一体化されていて、竹の繊維の方向が前後方向とされている。また、中間側板３も端部側板２と同じ態様の竹の集成材で形成されている。一方、背板４は、竹の繊維の方向に細長い板状の細片が、上下方向に多数積層されて一体化されていて、竹の繊維の方向が左右方向とされており、また棚板５，６は、図５に図示されるように、竹の繊維の方向に細長い板状の細片が、前後方向に多数積層されて一体化されていて、竹の繊維の方向が左右方向とされている。
【００４３】
以下、書棚１の右側の端部側板２および右側の中間側板３からなる１対の側板の間における、第１，第２棚部の６段の棚段を形成するための構造について、図１〜図９を参照して詳細に説明するが、残りの２組の１対の側板の間、すなわち両中間側板３，３の間、そして左側の中間側板３および左側の端部側板２の間における第１，第２棚部の６段の棚段を形成するための構造も、以下に説明する構造と同じである。
【００４４】
図１および図４を参照すると、長方形状の枠体により形成される基部10は、右側枠部および左側枠部にそれぞれ２個ずつ固定されたアングル材13（図１および図４には左側の枠部に固定されるアングル材13が示されている）により、床等の基盤に固定される。端部側板２および中間側板３は、両側板２，３の下部に設けられた埋込みナットに、それら側板２，３の間に配置された基部10に設けられたボルト孔14を貫通するボルト15が螺合されることで、基部10に結合され、さらに、両側板２，３の上部に設けられた埋込みナットに、それら側板２，３の間に配置された天板９の枠体16に設けられたボルト孔17を貫通するボルト（図示されず）が螺合されることで、天板９に結合される。そのため、天板９の右側部および左側部には、ボルトを締結するための作業用の空間18が形成されている。そして、天板９の枠体16の下面全体は、１枚の外板19で覆われており、枠体の上面全体は、中央部の外板20と、前記空間18を覆うために、木ネジで枠体に固定される左右１対の蓋板21とで覆われる。
【００４５】
天板９の第１，第２前面側の前面には、見出し札を入れるホルダ22が装着される装着部23が設けられる。図３のＶＩＩ−ＶＩＩ線での部分断面図である図７、図３のＶＩＩＩ−ＶＩＩＩ線での部分断面図である図８およびホルダ22の斜視図である図９を併せて参照すると、第１前面の装着部23は、天板９の第１前面の左右方向の全長に渡って設けられた幅広の収容溝23aと、収容溝23aの底壁面において、上下方向の中央部に収容溝23aよりも幅が狭く天板９の左右方向の全長に渡って設けられた係止溝23bとから構成される。係止溝23bは、その開口23b1から底壁面に向かうほど上下方向の幅が増大する蟻ほぞ形状の溝となっている。また、第２前面側の前面においても、第１前面側の前面の装着部23と同一構造の装着部23が設けられる。
【００４６】
そして、透明な合成樹脂から形成された左右方向に長い長方形状のホルダ22は、見出し札が挿入される挿入部22aと、ホルダ22の中央部に所定の左右方向の長さを有して形成された上下１対の係止片22b1からなる係止部22bとを有する。挿入部22aは、平板状の表示部22a1と、該表示部22a1の上部および下部がＵ字状に後方に湾曲されて、ホルダ22の上下方向の中央位置付近まで延びる平板状の上下１対の保持部22a2との間に形成される挿入空間22a3を有し、該挿入空間22a3に左右方向から見出し札が挿入される。また、１対の保持部22a2と連続してそれぞれ形成された両係止部22b1の上下方向の間隔は、挿入部22a側から先端部に向かうほど、係止溝23bの上下方向の幅に対応して増大して、係止溝23bの開口23b1の上下方向の幅よりも大きくなり、その先で、両先端部が相互に近づくように湾曲されて、両先端部の最先端22b2の上下方向の外側の間隔が開口23b1の上下方向の幅よりも小さくされる。これによって、天板９にホルダ22を装着する際は、両係止片22b1の先端部を係止溝23bの開口23b1に当接させて押し込むことにより、ホルダ22は、係止片22b1のもつ弾性を利用して容易に係止溝23bに係合して天板９に装着され、またホルダ22の左右方向の移動も容易になる。
【００４７】
一方、背板４は、図１および図３に図示されるように、その下面に設けられた左右１対の段部4aが、基部10の前後方向での中央部の上面にそれぞれ当接して支持される。また、背板４の下部の第１，第２前面側において、左右方向での中央部には、左右方向に所定長さを有する支持部24（図４も併せて参照）が接合されている。そして、背板４の第１前面側および第２前面側で、基部10の上面に載置される第１底板７および第２底板８は、結合手段25により基部10および背板４に着脱自在に固定される。この結合手段25は、図１０に図示されるように、１対の把持部26aを有する合成樹脂製の雌型コネクタ26と、軸部27aを有する合成樹脂製の雄型コネクタ27とからなる。そして、各底板７，８の下面の前縁部および後縁部のそれぞれ２箇所に木ネジＢで固定された雌型コネクタ26の１対の把持部26aが、基部10の前枠部内側および背板４の下縁部のそれぞれ２箇所に木ネジＢで固定された雄型コネクタ27の軸部27aと係合して、該軸部27aを把持することにより、基部10に着脱自在に固定される。さらに、支持部24によって、第１，第２底板７，８の後縁部の中央部がそれぞれ支持されて、書籍類が置かれたときに第１，第２底板７，８が撓むのが防止される。
【００４８】
また、背板４は、端部側板２および中間側板３の互いに対向する内側面から突出するピン29（図１には中間側板３に設けられたピン29が示されている）を有する８個の結合手段28により固定される。すなわち、結合手段28は、背板４と中間側板３との結合部分の部分断面図であって、図３のＸＩ−ＸＩ線での部分断面図である図１１に図示されるように、中間側板３内に埋設されたナット30に螺合する鋼製のピン29と、背板４の第１前面側に木ネジＢで固定されたフランジ31aを有するナット31と、テーパ形状とされた先端部32aを有する係止ボルト32とを備え、ナット31に螺合する係止ボルト32の先端部32aが、ピン29に設けられたテーパ形状の係止穴29aに係合することにより、背板４と中間側板３とが結合される。なお、背板４と端部側板２との結合手段28も、ナット30が、中間側板３ではなく端部側板２に木ネジＢで固定される点が異なるのみで、その構造は、背板４と中間側板３との結合手段28と同じである。
【００４９】
ここで、各側板２，３に取り付けられた４本のピン29は、各側板２，３の前後方向の中央位置で、かつ上下方向に等間隔に配置され、また背板４に取り付けられた８個のナット31は、背板４の左右の側縁部4cに、ピン29の高さ位置に対応した位置で４個ずつ配置されている。そのため、背板４は、各側板２，３の前後方向の中央部に固定される。
【００５０】
また、図１〜図４を参照すると、端部側板２および中間側板３のそれぞれの第１，第２前面側の前部には、第１棚板５または第２棚板６を両側板２，３の間で架設するために、それら棚板５，６を支持する第１棚受部である棚受部40を有して、それら棚板５，６の高さ位置を調節自在とするための第１調節部である調節部C1が設けられている。
【００５１】
先ず、端部側板２の第１前面側の調節部C1について説明すると、端部側板２の前部において、底板７と天板９との間で上下方向の所定範囲に渡って等間隔に設けられた複数段、好ましくは多数段、この実施例では３４段の棚受部40を有する。各棚受部40は、端部側板２の前面に開口することで、前方に開放すると共に、前後方向に、しかも水平に所定長さで延びる第１スリットであるスリット41を、端部側板２を左右方向に貫通して設けることにより形成される。これら全てのスリット41は同一の形状および寸法を有し、各スリット41に対して、第１棚板５の後述する凸部5aが抜き差し自在とされる。それゆえ、端部側板２の一部である各棚受部40は、端部側板２の前縁部にその先端部が位置する。
【００５２】
また、スリット41の周壁面の一部である下壁面は、棚板５の右側凸部5aがスリット41に係合したとき、該凸部5aを支持する面であり、したがって、各スリット41の下方に形成される棚受部40の支持面40aを形成する。そして、隣接する棚受部40の支持面40aの上下方向の間隔は、スリット41の上下方向の形成間隔に依存し、棚板５の高さ位置を調節するときの最小調節量である調節ピッチを規定するものである。また、図６に図示されるように、凸部5aが端部側板２の棚受部40に支持されたとき、右側凸部5aの右側面は、端部側板２の外側面（右側面）と略同じ位置を占めるため、棚受部40は端部側板２の板厚の略全厚みを利用して右側凸部5aを支持している。
【００５３】
さらに、支持面40aの前後方向の長さは、凸部5aがスリット41の最後部位置まで差し込まれたとき、棚板５の前面が、端部側板２の前面と面一または前面から若干後退した位置となるように設定される。さらに、スリット41の上下方向の幅は、棚板５が両側板２，３の間に差し込まれた際に、背板４に設けられた後述するスリット51a ， 51bの凸条52a，52bに、棚板５の後部の後述する右側および左側凸部5c，5dの凹溝53a，53bをそれぞれ係合させる際、棚板５の若干の傾斜を許容するように、凸部5aが支持面40aに支持された状態で、スリット41の上壁面と棚板５の上面との間に若干の間隙Ｇ（図５参照）が形成されるように設定される。
【００５４】
一方、中間側板３の調節部C1も、中間側板３の板厚が端部側板２の板厚と異なる点を除いて、端部側板２の調節部C1と実質的に同様に設けられている。そして、図６に図示されるように、中間側板３のスリット41に左側凸部5bが係合して、該凸部5bが棚受部40に支持されたとき、凸部5bの左側面は、中間側板３の左右方向の略中央位置を占め、その左方では、両中間側板３，３に架設される棚板５の右側凸部5aの右側面が、やはり中間側板３の左右方向の略中央位置を占めている。このように、１枚の中間側板３の同一段の棚受部40には、左右方向に隣接する棚板５の２つの凸部5a，5bが左右方向に並んで支持され、中間側板３の棚受部40は、中間側板３の板厚の略全厚みを利用して、それら２つの凸部5a，5bを支持している。
【００５５】
さらに、端部側板２の第２前面側の調節部C1および中間側板３の第２前面側の調節部C1も、端部側板２および中間側板３の第１前面側の調節部C1とそれぞれ同一構造とされる。それゆえ、第１，第２棚板５，６は、第１，第２棚部の前方から、それぞれ、各スリット41に対して抜き差し自在とされる。
【００５６】
そして、図１〜図６を参照すると、右側の端部側板２および右側の中間側板３の１対の側板の調節部C1に対応して、背板４には、側板２，３の調節部C1の棚受部40の段数と等しい段数の棚受部50を有する第２調節部である調節部C2が設けられる。側板２，３の対応する棚受部40と等しい高さ位置に設けられた各棚受部50は、左右の側縁部4cを残して、左右方向で水平に所定長さで延びてスリット41と等しい段数の第２スリットであるスリット51を、背板４を前後方向に貫通して設けることにより形成される。各スリット51は、この実施例では、左右に分かれてい並んでいる２つの第１部分スリット51a（第１前面側から見て右方に位置する）および第２部分スリット51b（第１前面側から見て左方に位置する）からなり、両部分スリット51a，51bの左右方向の間は、背板４の中央部において上下方向に延びる仕切部4bとなっている。したがって、背板４の各棚受部50は、第１部分スリット51aを設けることにより形成される第１部分棚受部50a、および第２部分スリット51bを設けることにより形成される第２部分棚受部50bから構成され、各部分スリット51a，51bの周壁面の一部である下壁面は、棚板５，６の後部の各凸部5c，5d，6c，6dが対応する部分スリット51a，51bに係合したとき、該凸部5c，5d，6c，6dを支持する面であり、第１，第２部分スリット51a，51bの下方にそれぞれ形成される第１，第２部分棚受部50a，50bの支持面50a1，50b1を形成する。そして、上下方向に隣接する両部分棚受部50a，50bの支持面50a1，50b1の上下方向の間隔は、側板２，３のときと同様に、調節ピッチを規定するものである。
【００５７】
さらに、各部分スリット51a，51bの周壁面には、該周壁面の前後方向の中央部（背板４の前後方向の中央部）に１条の凸条52a，52bが全周に渡って設けられている。そして、各部分スリット51a，51bの下壁面、すなわち支持面50a1，50b1に設けられている凸条52a，52bは、棚板５，６の凹溝53a，53b，54a，54bから構成される被係止部と係合する第１，第２部分棚受部50a，50bの係止部を構成するものである。そして、各部分スリット51a，51bに対して、棚板５，６の後部の両凸部5c，5d，6c，6dが抜き差し自在とされ、両凸部5c，5d，6c，6dが各部分スリット51a，51bに係合したとき、支持面50a1，50b1に該凸部5c，5d，6c，6dが支持される。
【００５８】
次に、第１棚部の第１棚板５について説明する。図１および図６によく図示されるように、第１棚板５は、その側部である右側部および左側部の前部に、右方および左方にそれぞれ突出する第１凸部である右側凸部5aおよび左側凸部5bが設けられ、その後部には、左右方向に所定間隔をおいて、後方に突出する第２凸部である右側凸部5cおよび左側凸部5dが設けられる。
【００５９】
第１棚板５の両側部の右側および左側凸部5a，5bは、端部側板２および中間側板３の同一段にあるスリット41に係合することにより、同一段の棚受部40に支持され、これによって第１棚板５が両側板２，３に支持される。また、第１棚板５の後部の右側および左側凸部5c，5dには、第１部分棚受部50aの凸条52aおよび第２部分棚受部50bの凸条52bにそれぞれ係合する直線状の１条の凹溝53a，53bが、それぞれ左右方向にそれら凸部5c，5dの全長に渡って延びて設けられている。そして、右側および左側凸部5c，5dは、第１棚板５の両側部の凸部5a，5bが棚受部40に支持された状態で、両側板２，３と同一段にある第１，第２部分スリット51a，51bにそれぞれ係合して、両部分棚受部50a，50bに支持され、これによって第１棚板５が背板４に支持される。このとき、第１前面側から見て、右側凸部5cは第１部分スリット51aの右側に位置し、左側凸部5dは第２部分スリット51bの右側に位置すると共に、両凸部5c，5dの凹溝53a，53bが、第１，第２部分棚受部50a，50bの凸条52a，52bにそれぞれ係合しており、これによって、第１棚板５が両側板２，３および背板４に水平な状態で支持されると共に、第１棚板５の前方への移動が規制される。
【００６０】
一方、前述のように第１棚板５と同一仕様の第２棚板６においても、両側部に右側および左側凸部6a，6bが、その後部には右側および左側凸部6c，6dが、さらに該両凸部6c，6dに凹溝54a，54bが、それぞれ設けられており、第１棚板５と同じ形態で両側板２，３および背板４に支持される。それゆえ、背板４は第１，第２棚板５，６の共通の単一の背板４となっており、図６に図示されるように、同一段の第１，第２部分棚受部50a，50bにおいて、第２棚板６の右側凸部6cの凹溝54aおよび左側凸部6dの凹溝54bが、第１，第２部分棚受部50a，50bの凸条52a，52bに、それぞれ、第１棚板５の右側および左側凸部5c，5dの凹溝53a，53bの係合位置とは、左右方向で異なる位置で係合する。換言すると、第１棚板５の右側および左側凸部5c，5dの凹溝53a，53bと、第２棚板６の右側および左側凸部6c，6dの凹溝の凹溝54a，54bとが、凸条52a，52bに、左右方向で交互に係合する。すなわち、第１棚板５の右側凸部5cは、第１前面側から見て、第１部分棚受部50aの右側において、第２棚板６の後面と間隙を介して対向した状態で、第２棚板６の左側凸部6dの右側に位置し、第１棚板５の左側凸部5dは、第１前面側から見て、第２部分棚受部50bの右側において、第２棚板６の後面と間隙を介して対向した状態で、第２棚板６の右側凸部6cの右側に位置する。同様に、第２棚板６の右側凸部6cは、第１前面側から見て、第２部分棚受部50bの左側において、第１棚板５の後面と間隙を介して対向した状態で、第１棚板５の左側凸部5dの左側に位置し、第２棚板６の左側凸部6dは、第１前面側から見て、第１部分棚受部50aの左側において、第１棚板５の後面と間隙を介して対向した状態で、第１棚板５の右側凸部5cの左側に位置する。これによって、第１棚板５および第２棚板６の後面同士が当接することが回避されて、各棚板５，６が、背板４の中央部である仕切部4bおよび左右の側縁部4cに当接して、各棚板５，６の前面が確実に所定の位置を占めるようにされる。このとき、第１，第２部分棚受部50a，50bにおいて、棚板５，６の右側および左側凸部5c，5d，6c，6dは、背板４の板厚の厚み全体を利用して支持されていないが、各部分棚受部50a，50bは、十分な支持強度が得られる左右方向の長さを有している。そして、必要な場合は、背板４の板厚の略全厚みを利用して棚板５，６の右側および左側凸部5c，5d，6c，6dを支持することが可能である。
【００６１】
次に、前述のように構成された実施例の作用および効果について説明する。
第１，第２棚板５，６を３組の１対の側板２，３、３，３間に架設するときは、各棚板５，６が１対の側板２，３、３，３間に挿入され、各棚板５，６の両側部の右側および左側凸部5a，5b，6a，6bが、所望の高さ位置にある段のスリット41に、前方から後方に向かって差し込まれることで、棚受部40に支持され、各棚板５，６の後部の右側および左側凸部5c，5d，6c，6dが、側板２，３のスリット41と同じ段の第１，第２部分スリット51a，51bに差し込まれることで、第１，第２部分棚受部50a，50bに支持されるようにし、これによって、各棚板５，６が１対の側板２，３、３，３間および背板４にて支持される。棚板５，６の高さ位置を調節するときは、棚板５，６を若干傾斜させて、凹溝53a，54b，53b，54aと凸条52a，52bとの係合状態を解除してから、棚板５，６を前方に引き出すことにより、両凸部5c，5d，6c，6dが両部分スリット51a，51bから抜き出され、次いで両凸部5a，5b，6a，6bがスリット41から抜き出されて棚板５，６が外される。そして、棚板５，６の両凸部5a，5b，6a，6bが、上方または下方の所望の高さ位置にある別の段のスリット41に差し込まれ、さらに棚板５，６の両凸部5c，5d，6c，6dが、該スリット41と同じ高さ位置の段の第１，第２部分スリット51a，51bに、凹溝53a，54b，53b，54aが凸条52a，52bに係合するように差し込まれて、棚板５，６が新たな高さ位置の１対の側板２，３、３，３間および背板４の棚受部40，50にて支持される。
【００６２】
そして、凸部5a，5b，6a，6bが端部側板２の棚受部40に支持されたとき、棚受部40は端部側板２の板厚の略全厚みを利用して凸部5a，5b，6a，6bを支持し、中間側板３の同一段の棚受部40には、隣接する棚板５，６の２つの凸部5a，5b，6a，6bが左右方向に並んで支持され、中間側板３の棚受部40は、中間側板３の板厚の略全厚み、換言すれば各凸部5a，5b，6a，6bが中間側板３の板厚の略１／２の厚みを利用して、それら２つの凸部5a，5b，6a，6bを支持する。
【００６３】
その結果、各棚板５，６をセットするときは、側部の凸部5a，5b，6a，6bおよび後部の凸部5c，5d，6c，6dを、所望の高さ位置にあるスリット41および部分スリット51a，51bにそれぞれ差し込み、また、棚板５，６の高さ位置を調節するときは、側部の凸部5a，5b，6a，6bおよび後部の凸部5c，5d，6c，6dをスリット41および部分スリット51a，51bから抜き出して、その後、所望の高さ位置にある別のスリット41および部分スリット51a，51bにそれら凸部5a，5b，6a，6bおよび凸部5c，5d，6c，6dをそれぞれ差し込めばよいため、棚板５，６のセットおよび棚板５，６の高さ位置の調節が短時間でできる。また、棚板５，６は、側板２，３の板厚の略全厚みを利用することができる棚受部40により支持されるので、側板２，３の板厚が、棚受部40の支持面40aの厚みよりも大きく厚くなることがなく、したがって書棚１の大型化および重量増を招来することなく、棚受部40の十分な支持強度を確保できる。
【００６４】
また、棚板５，６の凸部5a，5b，6a，6bが１対の側板２，３、３，３間の棚受部40にそれぞれ支持され、棚板５，６の後部の凸部5c，5d，6c，6dが背板４の部分棚受部50a，50bに支持されるので、棚板５，６に置かれた書籍類の重量による荷重が、凸部5a，5b，6a，6bおよび凸部5c，5d，6c，6dに分散され、側板２，３および背板４に支えられる。これにより、凸部5a，5b，6a，6bが負担する荷重が減少するため、凸部5a，5b，6a，6bの前後方向の寸法を短くすることができ、したがって凸部5a，5b，6a，6bが支持される棚受部40を形成するスリット41の前後方向の寸法を短くすることが可能となって、スリット41の形成による側板２，３の強度低下を抑えることができる。
【００６５】
その結果、各側板２，３の棚受部40を形成するスリット41の寸法を短くして、スリット41の形成による側板２，３の強度低下を抑えることができるので、側板２，３の板厚を薄くすることが可能となって、書棚１が小型化および軽量化される。
【００６６】
さらに、前後方向に延びるスリット41を設けることにより形成される側板２，３の一部としての棚受部40は、側板２，３を形成する竹の繊維の方向と同じ前後方向に延びるため、棚受部40は、竹の強靱性により強度の高いものとなる。その結果、棚受部40が側板２，３の前縁にあるにも拘わらず、欠け等の損傷を生じにくくなって、耐久性のある書棚１が得られると共に、多数のスリット41の形成間隔を狭くしても、棚受部40は棚板５，６を支持するのに十分な強度を有しているので、棚板５，６の高さ位置の最小調節量、すなわち調節ピッチの設定の自由度が大きくなる。
【００６７】
左右の両側部にて棚受部40に支持される第１，第２棚板５，６を形成する竹集成材の竹の繊維の方向が左右方向であるため、竹の強靱性により各棚板５，６の残留撓みは極めて小さくなる。そのため、棚板５，６に置かれた書籍類の重量により棚板５，６に撓みが生じて、棚板５，６の左右に位置する棚受部40を支持点として棚板５，６が上下方向に湾曲したとしても、置かれていた書籍類を除いたとき、棚板５，６は元の形状に回復して、湾曲したままであることがない。
【００６８】
その結果、残留撓みによって第１，第２棚板５，６が湾曲したままの状態になることは殆どなく、初期の棚板５，６の形状を長期に渡って維持することができるので、棚受部40の強度を確保するためにスリット41の上下方向の幅を許容範囲の最小値に設定したとしても、棚板５，６の湾曲のためにスリット41に対する棚板５，６の抜き差しがスムーズに行われなくなる等の不具合が生じることはなく、スリット41に対する各棚板５，６のスムーズな抜き差を長期に渡って維持できる。
【００６９】
棚板５，６の後部の凸部5c，5d，6c，6dの凹溝53a，53b，54a，54bが、背板４の部分棚受部50a，50bの凸条52a，52bに係合するので、棚板５，６は、その側部の凸部5a，5b，6a，6bが側板２，３の棚受部に差し込まれているだけであるにも拘わらず、前方に移動しにくくなって、前方に開放しているスリット41から凸部5a，5b，6a，6bが抜け出しにくくなる。その結果、棚板５，６を所定位置に安定して保持でき、棚板５，６上で書籍類を移動させる際等に棚板５，６が移動することはない。
【００７０】
複式の書棚１において、両部分スリット51a，51bが設けられた背板４は、部分スリット51a，51bの間に位置する仕切部4bで上下方向に連続するため、背板４が上下方向に多数のスリット51を有し、しかも棚受部50で第１，第２棚板５，６を支持するにも拘わらず、この仕切部4bによって背板４の強度の低下を抑制できる。その結果、多数のスリット51の形成間隔を狭くしても、棚板５，６を支持するのに十分な強度が得られ、棚板５，６の高さ位置の最小調節量、すなわち調節ピッチの設定の自由度が大きくなる。
【００７１】
第１棚板５の両凸部5c，5dおよび第２棚板６の両凸部6c，6dは、背板４の板厚により規定される各部分棚受部50a，50bの支持面50a1，50b1上の左右方向の同一位置で、同一段に架設された第１棚板５の凸部5c，5dおよび第２棚板６の凸部6c，6dの後面同士が対向することがなく、最大限で、背板４の板厚の略全厚みを利用して各第２凸部を支持することが可能である。その結果、同一段の各部分棚受部50a，50bにおいても、第１，第２棚板５，６は背板４の板厚の厚みにより安定した状態で支持され、しかも全厚みを利用することにより、背板４の板厚も薄くすることが可能となって、物品載置棚の小型化および軽量化ができる。
【００７２】
背板４の各部分棚受部50a，50bの１条の凸条52a，52bが、第１，第２棚板５，６で共用されるため、第１，第２棚板５，６の凸部5c，5d，6c，6dの凹溝53a，53b，54a，54bが係合する凸条52a，52bを別々に設ける必要がなく、加工形成が容易であると共に、背板４の板厚を厚くする必要もない。さらに、第１，第２棚板５，６は同一仕様であるため、量産化効果を発揮できる。その結果、背板４の板厚を薄くできて、書棚１の小型化および軽量化ができる。また、量産化効果により書棚１のコスト削減ができる。
【００７３】
第１，第２棚部において共用される単一の背板４に設けられる棚受部50は、単式の書棚と同様に背板４を貫通するスリット51を設けることにより形成されるので、複式の書棚１において、棚受部50を有する背板４であるのにも拘わらず、その棚受部50の加工作業量は、単式の書棚のそれと同等である。書棚１の背板４の棚受部50の加工作業量が増加することはなく、棚受部50が設けられた背板４を有する書棚１の生産性が向上する。また、単式の書棚の背板と同一仕様の背板を、複式の書棚１に使用することも可能であり、これによって書棚１のコスト削減ができる。
【００７４】
第１棚板５の後部の両凸部5c，5dは、第２棚板６の後面と間隙を介して対向し、第２棚板６の後部の両凸部6c，6dは、第１棚板５の後面と間隙を介して対向している。その結果、第１棚板５および第２棚板６の後面同士が当接することが回避されて、各棚板５，６が、背板４の中央部である仕切部4bおよび左右の側縁部4cに当接して、各棚板５，６の前面が確実に所定の位置を占めるようにできる。
【００７５】
以下、前述した実施例の一部の構成を変更した実施例について、変更した構成に関して説明する。
前記実施例では、棚受部40の先端部が各側板２，３の前縁部にあるので、例えば書籍類を載せたワゴン等の固い物体との接触による棚受部40の損傷の可能性が皆無であるとはいえない。そこで、そのような損傷を防止するために、棚受部40を、その側面または前面から覆う化粧部材を取り付けてもよい。
【００７６】
すなわち、書棚１の一部分解された状態を示す斜視図である図１２に図示されるように、中間側板３の前面全体は、結合手段62で中間側面の前面に取り付けられる、中間側板３の板厚の１／２の左右方向の幅を有する２つの棒状の前面化粧部材60により覆われる。この結合手段62は、図１３に図示されるように、４段の円錐台形状を有する埋込み部63aと、係合孔63b2を形成すべく周方向に間隔をおいて設けられた４つの部分円筒片63b1からなる係合部63bとが一体成形された合成樹脂製の雌型コネクタ63と、４段の円錐台形状を有する埋込み部64aと、拡径部64b1を有する円柱状の凸部64bとが一体成形された合成樹脂製の雄型コネクタ64とからなる。そして、図１２の前面化粧部材60が中間側板３に取り付けられる前の部分斜視図である図１４に図示されるように、中間側板３の前面に埋込み部63aが埋め込まれた雌型コネクタ63の係合部63bの係合孔63b2に、前面化粧部材60の裏面に埋込み部64aが埋め込まれた雄型コネクタ64の凸部64bが嵌入されて、該凸部64bが部分円筒片63b1の弾性力により係合部63bと弾性係合することで、前面化粧部材60が中間側板３の前面に着脱自在に取り付けられる。
【００７７】
さらに、端部側板２の外側面全体は、結合手段62で端部側板２の外側面に着脱自在に取り付けられる板状の側面化粧部材61により覆われる。ここでは、端部側板２に埋め込まれた雌型コネクタ63と側面化粧部材61の裏面に埋め込まれた雄型コネクタ64（図１２には図示されず）との弾性係合により、側面化粧部材61が端部側板２に着脱自在に取り付けられる。このとき、側面化粧部材61の前後方向の長さは、前面化粧部材60の前後方向の寸法の２倍だけ、端部側板２の前後方向の長さよりも長くされていて、側面化粧部材61が端部側板２に取り付けられたとき、その前縁61aが、前面化粧部材60と同程度に端部側板２の前面から前方に突出する。
【００７８】
なお、図１２に図示された書棚１では、端部側板２の前面よりも側面化粧部材61が前方に突出していることで、物体との接触による棚受部40の損傷は防止されるため、端部側板２の前面には前面化粧部材60が取り付けられていないが、前面化粧部材60を取り付けてもよい。
【００７９】
それゆえ、この化粧部材60，61が取り付けられた変形実施例によれば、前記実施例の作用および効果に加えて以下の作用および効果が奏される。すなわち、前面化粧部材60により、端部側板２および中間側板３の前縁にある棚受部40が覆われ、また側面化粧部材61により端部側板２の前縁にある棚受部40が覆われるので、物体が棚受部40に接触するのが防止される。また、前面化粧部材60によりスリット41の、前方に開放されている部分が覆われるため、棚板５，６が前方に抜け出すことが防止される。また、両化粧部材60，61は着脱自在であるので、それら化粧部材60，61の交換等のメンテナンスが容易である。前面化粧部材60を外すことにより、棚板５，６の高さ位置を調節することができる。
【００８０】
その結果、棚受部40が前面化粧部材60または側面化粧部材61により覆われて、物体が棚受部40に接触するのが防止されるので、物体の接触により棚受部40に欠け等の損傷が発生するのを防止できる。また、前面化粧部材60を取り付けることにより、スリット41の、前方に開放されている部分が覆われるため、棚板５，６が前方に抜け出すことが防止される。さらに、棚板５，６の高さ位置の調節は、前面化粧部材60を外すことにより容易にできる。
【００８１】
前記各実施例では、背板４の各スリット51は、２つの部分スリット51a,51bから構成されるものであったが、単一のスリットから構成することもでき、その場合には、該単一のスリット内で、第１棚板５の後部の凸部と第２棚板６の後部の凸部とが左右方向で異なる位置において凸条と係合する。また、凸条52a，52bは、各部分スリット51a，51bの周壁面の少なくとも下壁面に設けられていればよい。さらに、凸条52a，52bは、連続することなく、棚板５，６の前方への移動を規制できる範囲で、凸条の延びる方向に、間隔をおいて断片的に設けられていてもよい。１条の凸条の代わりに、第１棚板５用の第１凸条および第２棚板６用の第２凸条を、互いに平行な状態で設けるようにしてもよい。さらに、各部分スリット51a，51bの周壁面の少なくとも下壁面（支持面51a1，51b1）に凹溝を設けて係止部を構成し、該凹溝に係合する凸条を棚板５，６の右側および左側凸部5c，5d，6c，6dに設けて被係止部を構成してもよい。また、前記実施例では、棚板５，６の凸部5a，5b，5c，5d，6a，6b，6c，6dは、棚板５，６自体の一部により形成されたが、棚板とは別体の部材により形成することもできる。
【００８２】
前記実施例では、背板４のスリット51は、左右方向に開放していないスリットであったが、左右方向に開放するスリットであってもよい。背板４は、複数の背板が左右方向に並んでいるものであってもよい。また、前記実施例では、棚板５，６の後部は、背板４に設けられたスリット51により形成される棚受部50で支持されたが、棚受部50は、背板４に左右方向に延びて設けられた溝により形成されてもよく、また左右方向に長い寸法を有するスリットではなく、棚板５，６の後部に設けられた略円柱状の凸部が差し込まれる略円形の孔であってもよい。また、棚板５，６の後部は、該棚板５，６の後面に設けられた孔または溝に嵌入されるスリット40の段数と等しい数のピンであって、側板の後部または背板に設けられたピンにより支持されるようにされてもよい。さらに、背当たりを有する棚板においては、背当たりの後面に設けられた孔または溝に前記ピンが嵌入されるようにされてもよい。
【００８３】
中間側板３の前面全体を覆う前面化粧部材は、２つの前面化粧部材60から構成されたが、中間側板３の板厚と等しい左右方向の幅を有する単一の前面化粧部材とすることもできる。
【００８４】
前記実施例では、書棚１は複式のものであったが、単式のものであってもよい。また、３連式以外の多連式書棚であってもよいし、２つの側板のみを備えた１連式書棚であってもよい。さらに、前記実施例では、物品載置棚は、書棚であったが、書籍類以外の物品を載置する棚であってよい。
【図面の簡単な説明】
【図１】本願発明の実施例である書棚の一部分解された状態を示す斜視図である。
【図２】図１の部分拡大図である。
【図３】図１の書棚の部分正面図である。
【図４】図６のＩＶ−ＩＶ線での部分断面図である。
【図５】図４の部分拡大図である。
【図６】図３のＶＩ−ＶＩ線断面図である。
【図７】図３のＶＩＩ−ＶＩＩ線での部分断面図である。
【図８】図３のＶＩＩＩ−ＶＩＩＩ線での部分断面図である。
【図９】ホルダの斜視図である。
【図１０】結合手段の斜視図である。
【図１１】背板と中間側板との結合部分の部分断面図であって、図３のＸＩ−ＸＩ線での部分断面図である。
【図１２】化粧部材が取り付けられた書棚の一部分解された状態を示す斜視図である。
【図１３】結合手段の斜視図である。
【図１４】化粧部材が中間側板に取り付けられる前の部分斜視図である。
【符号の説明】
１…書棚、２，３…側板、４…背板、4b…仕切部、５…棚板、5a，5b，5c，5d…凸部、６…棚板、6a，6b，6c，6d…凸部、７，８…底板、９…天板、10…基部、11…凹溝、12…ブックサポート、13…アングル材、14…ボルト孔、15…ボルト、16…枠体、17…ボルト孔、18…空間、19，20…外板、21…蓋板、22…ホルダ、
23…装着部、24…支持部、25…結合手段、26，27…コネクタ、28…結合手段、29…ピン、30，31…ナット、32…係止ボルト、
40…棚受部、40a…支持面、41…スリット、
50…棚受部、50a，50b…部分棚受部、50a1，50b1…支持面、51…スリット、51a，51b…部分スリット、52a，52b…凸条、53a，53b，54a，54b…凹溝、
60，61…化粧部材、62…結合手段、63，64…コネクタ、
Ｂ…木ネジ、C1，C2…調節部、Ｇ…間隙。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an article placement shelf including a shelf board on which books such as books and files, and other articles are placed, and a side plate having an adjustment portion for making the height position of the shelf board adjustable. .
[0002]
[Prior art]
2. Description of the Related Art Conventionally, various article placement shelves including side plates having an adjustment unit for making the height position of a shelf plate adjustable are known. For example, in a bookshelf disclosed in Japanese Patent Application Laid-Open No. 8-191724, metal shelf columns extend in the vertical direction on the inner side surfaces of the left and right side plates and are embedded in parallel to each other, and the shelf columns are spaced in the vertical direction. A cylindrical shelf holder is removably locked in a number of the locking holes provided in the first position. And the shelf board is supported by a pair of side board by the shelf holder of each side board being inserted in the ditch | groove provided in the lower surface of the shelf board.
[0003]
[Problems to be solved by the invention]
By the way, in the conventional bookshelf, in order to support the shelf board at a desired height position, the shelf holder is engaged with the engagement hole at the desired height position of the shelf board, and then the shelf board It is necessary to insert the shelf holder into the recessed groove provided on the lower surface, and in order to adjust the height position of the already set shelf board, remove the shelf board, and then remove the shelf holder. The shelf holder is removed from the locking hole, the shelf holder is locked to the locking hole at a desired height, and then the shelf holder is inserted into the groove of the shelf board.
[0004]
Thus, when adjusting the height position of the shelf board, the operation of locking the shelf holder in the engagement hole, and the operation of inserting the shelf holder into the groove on the lower surface of the shelf board, The operation | work which removes a shelf holder from a latching hole was needed, and adjustment of the height position of a shelf board was work which took time.
[0005]
Therefore, it is conceivable to form the shelf receiving portion by providing a groove provided on the inner side surface of the side plate and extending in the front-rear direction without using the shelf holder, but ensuring the support strength of the shelf receiving portion. Therefore, it is necessary to increase the depth of the groove. Therefore, it is necessary to secure the strength of the side plate on which the deep groove is formed. Furthermore, there is a difficulty in increasing the weight.
[0006]
  The present invention has been made in view of such circumstances, and claims 1 to 10.7The described invention provides an article placement shelf having a shelf receiving portion with sufficient support strength without requiring an adjustment operation of the height position of the shelf board in a short time and causing an increase in the size and weight of the shelf. This is a common purpose. And, ContractClaim2The described invention further aims to improve the strength of the side plate by reducing the dimension in the front-rear direction of the slit.3The described invention is further intended to suppress a decrease in strength of a single backboard that supports the shelf board., ContractClaim4The described invention is further intended to support the shelf in a stable state by restricting forward movement in the shelf receiver.5The described invention further facilitates the formation of a forward movement restricting portion in the shelf receiving portion, and can support two shelf plates in a stable state on a common back plate even in the same level shelf receiving portion. Claims6The invention described is intended to reduce the cost of a duplex article mounting shelf, and claims7It is another object of the described invention to reliably prevent breakage such as chipping of the shelf receiving portion.
[0007]
[Means for Solving the Problems and Effects of the Invention]
  The invention according to claim 1 of the present application includes a shelf plate and a plurality of side plates having a first shelf receiving portion and provided with an adjustment portion for making the height position of the shelf plate adjustable. An article in which the shelf is supported by the pair of side plates by supporting both sides of the shelf laid between the pair of side plates by the first shelf receiving portion of the pair of side plates, respectively. In the mounting shelf, the first shelf receiving portion is provided in a plurality of stages with an interval in the vertical direction on each side plate, and each first shelf receiving portion isPenetrate each side plate in the left-right directionBy providing a first slit that opens in front of each side plate and extends in the front-rear directionAt the front of each side plateEach side of the shelf is formed with respect to the first slit.From the frontIt has a first projection that can be inserted and removed in the front-rear direction.The first shelf support portion supports the first convex portion using substantially the entire thickness of the side plate,The first convex part is inserted into the first slit so that the shelf plate is supported by the first shelf receiving part, and the first convex part with respect to the first slitFrom the frontBy pulling out and inserting the shelf plate with respect to the pair of side platesFrom the frontThis is an article placement shelf that is inserted and removed in the front-rear direction.
[0008]
  According to the first aspect of the present invention, when the shelf board is installed between the pair of side plates, the shelf board is inserted between the pair of side plates, and the first convex portion on each side portion of the shelf board is A shelf board is supported by the 1st shelf receiving part by being inserted toward the 1st slit in a desired height position toward the back from the front. Moreover, when adjusting the height position of a shelf board, a shelf board is pulled out ahead, a 1st convex part is extracted from a 1st slit, and a 1st convex part is in a desired height position after that. The shelf is inserted into another first slit, and the shelf board is supported by the new first shelf receiver. In addition, in a state where the first convex portion is supported by the first shelf receiving portion, the first shelf receiving portion supports the convex portion using substantially the entire thickness of the side plate.The
[0009]
  As a result, when setting the shelf board, the first convex portion is inserted into the first slit at the desired height position.From the frontWhen inserting and adjusting the height position of the shelf board, remove the first convex part from the first slit.In frontSince it is only necessary to extract it and then insert it into another first slit at a desired height position, it is possible to set the shelf board and adjust the height position of the shelf board in a short time.
In addition, the shelf board uses substantially the entire thickness of the side board.FirstSince it is supported by one shelf receiving part, the plate thickness of the side plate does not become larger than the thickness of the support surface of the first shelf receiving part, and therefore the size and weight of the article mounting shelf are increased. And sufficient support strength of the first shelf receiving portion can be secured.
[0016]
  Claim2The described invention is claimed.1In the article placement shelf, the article placement shelf includes a back plate positioned between the pair of side plates, and the back plate has a height position corresponding to each of the plurality of first shelf receiving portions. Are provided with a plurality of second shelf receiving portions, each of the second shelf receiving portions,While passing through the back plate in the front-rear directionIt is formed by providing a second slit extending in the left-right direction, and the rear portion of the shelf board has a second convex portion that can be inserted and removed in the front-rear direction with respect to the second slit, and the second convex portion is the first convex portion. 2 slitsDo not protrude backwardBy being inserted, the shelf board is supported by the second shelf receiving part.The shelf board is inserted / removed in the front / rear direction from the front with respect to the back plate by inserting / removing the second convex part from / to the second slit.Is.
[0017]
  This claim2According to the described invention, the first convex portions on both sides of the shelf board are respectively supported by the pair of side plates, and the second convex portion on the rear portion is supported by the back plate, so that the article placed on the shelf board The load due to the weight of is distributed to the first convex portion and the second convex portion, and is supported by the side plate and the back plate. Thereby, since the load borne by the first convex portion is reduced, the dimension in the front-rear direction of the first convex portion can be shortened, and thus the first shelf receiving portion that supports the first convex portion is formed. It is possible to shorten the dimension in the front-rear direction of one slit, and it is possible to suppress a decrease in strength of the side plate due to the formation of the first slit. Further, when the shelf board is supported by the first shelf receiving part of the pair of side plates and the second shelf receiving part of the back plate, the shelf board is set when the shelf board is set and the height position is adjusted. For the first slit and the second slit,From the frontJust plug in and out.
  Further, the second convex portion is inserted into the second slit, and the shelf board is supported by the second shelf receiving part, so that each second is made using the full thickness of the back plate at the maximum. It is possible to support the convex part.
[0018]
  As a result, it is possible to reduce the thickness of the side plate by shortening the dimension of the first slit forming the shelf receiving portion and suppressing the decrease in the strength of the side plate due to the formation of the first slit, The article placement shelf is reduced in size and weight. Furthermore, although the shelf board is supported by the side board and the back board, the shelf board is attached to the first slit and the second slit.From the frontBy simply inserting and removing, the shelf can be set and the height of the shelf can be adjusted in a short time.Moreover, since the 2nd convex part is supported by the 2nd shelf receiving part formed by providing a 2nd slit in a backplate, it utilizes the full thickness of the board thickness of a backplate to the maximum. Since it becomes possible to support each 2nd convex part, a shelf board is supported in the stable state by the thickness of the board thickness of a back board, and also the board thickness of a back board is made thin by utilizing full thickness. This makes it possible to reduce the size and weight of the article placement shelf.
[0019]
  Claim3The described invention is claimed.2In the article mounting shelf described above, each of the second slits includes a plurality of partial slits divided in the left-right direction by a partition extending in the up-down direction.The second convex portion is inserted into each partial slit.Is.
[0020]
  This claim3According to the described invention, since the back plate provided with the second slits is continuous in the vertical direction with the partition portion located between the partial slits, the back plate also has a plurality of second slits in the vertical direction. Regardless, the partition portion can suppress a decrease in strength of the back plate.
[0021]
  As a result, since the back plate having a plurality of second slits is prevented from lowering in strength by the partition provided between the partial slits, even if the interval between adjacent second slits is narrowed, the shelf plate Strength sufficient to support the rack is obtained, and the minimum adjustment amount of the height position of the shelf board, that is, the degree of freedom in setting the adjustment pitch is increased.
[0027]
  Claim4The described invention is claimed.2 orClaim3In the article mounting shelf described above, when the locked portion provided on the second convex portion engages with the locking portion provided on the second shelf receiving portion, the shelf plate moves forward. Is regulated.
[0028]
  This claim4According to the described invention, since the locked portion of the second convex portion provided on the shelf plate engages with the locking portion of the second shelf receiving portion provided on the back plate, Although the first convex portion is merely inserted into the first shelf receiving portion, it is difficult to move forward, and the first convex portion is difficult to come out from the first slit opened forward.
[0029]
As a result, in a state where the shelf board is supported by the first and second shelf receiving parts, the locked part of the shelf board and the engaging part of the second shelf receiving part are engaged, so the shelf board is moved forward. It becomes difficult to move, the shelf board can be stably held at a predetermined position, and the shelf board does not move when the article is moved on the shelf board.
[0030]
  Claim5The invention described in the article mounting shelf according to any one of claims 2 to 4,The article placement shelf is a duplex shelf having a first shelf portion and a second shelf portion whose front faces are opposite directions in the front-rear direction, and the shelf board includes a first shelf board and a second shelf board. The back plate is a single back plate common to the first shelf and the second shelf,When the concave groove provided in the second convex portion engages with one protrusion provided in the second shelf receiving portion, the forward movement of the shelf plate is restricted, and the first The concave groove of the shelf plate and the concave groove of the second shelf plate can be engaged with the convex line at different positions in the left-right direction.
[0031]
  This claim5According to the described invention, the concave groove of each second convex portion engages with the convex strip of the second shelf receiving portion, so that the first convex portion of the shelf board is inserted into the first shelf receiving portion. Although it is only, it becomes difficult to move ahead, and it becomes difficult for a 1st convex part to slip out from the 1st slit currently opened ahead. Furthermore, since one ridge of the second shelf support is shared by the first and second shelf plates, there is no need to separately provide a ridge that engages the groove of the first and second shelf plates. The processing and formation are easy, and it is not necessary to increase the thickness of the back plate.
[0032]
As a result, in a state in which the shelf board is supported by the first and second shelf receiving portions, the recessed groove of the shelf plate and the protruding line of the second shelf receiving portion are engaged, so that the shelf board is difficult to move forward. Thus, the shelf board can be stably held at a predetermined position, and the shelf board does not move when an article is moved on the shelf board. Furthermore, since only one ridge is provided on the second shelf receiving portion, it is easy to process the ridge, and it is not necessary to increase the thickness of the back plate to form the ridge. The thickness of the back plate can be reduced, and the article mounting shelf can be reduced in size and weight.
[0033]
  Claim6The described invention is claimed.2 orClaimAny one of 4Article placement shelfThe article placement shelf is a duplex shelf having a first shelf portion and a second shelf portion with front sides opposite to the front-rear direction, respectively, and the shelf plates are the first shelf plate and the second shelf plate. The back plate is a single back plate common to the first shelf and the second shelf, and the second convex portion of the first shelf and the second shelf of the second shelf. The two convex portions are supported at different positions in the left-right direction by the second shelf receiving portion,The first shelf board and the second shelf board are shelf boards having the same specifications.
[0034]
  This claim6According to the described invention,At the same position in the left-right direction on the support surface of the second shelf receiving portion defined by the plate thickness of the back plate, the rear surfaces of the second convex portions of the first shelf plate and the second shelf plate installed in the same step are It is possible to support each of the second convex portions by using substantially the entire thickness of the back plate without facing each other. As a result, even in the same level shelf receiving section, the first and second shelf boards are supported in a stable state by the thickness of the back board, and by using the total thickness, the board thickness of the back board is also increased. It is possible to reduce the thickness and weight of the article placement shelf.. Furthermore, since the first and second shelf boards have the same specifications, the mass production effect can be exhibited. As a result, it is possible to reduce the cost of the duplex article mounting shelf due to the mass production effect.
[0035]
  Claim7The invention described in claim 1 to claim 16In the article mounting shelf according to any one of,PreviousRecordeachFront side plateA portion of the first slit that is open forwardThe front decorative member that covers is attached detachably.
[0036]
  This claim7According to the described invention,PreviousSince the first shelf receiving portion at the front edge of the side plate is covered by the face decorative member, the object is prevented from coming into contact with the first shelf receiving portion. Further, since each decorative member is detachable, maintenance such as replacement of each decorative member is easy. Furthermore, since the part opened ahead of the slit is covered by the front decorative member, the shelf board is prevented from coming out forward. And the height position of a shelf board can be adjusted by removing the front decorative member made detachable.
[0037]
  As a result, the first shelf receiverBeforeSince the object is prevented from coming into contact with the first shelf receiving part by being covered with the face decorative member, it is possible to prevent the first shelf receiving part from being damaged due to the contact of the object. Moreover, since each decorative member is detachable, maintenance is easy. Furthermore, by attaching the front decorative member, the portion of the first slit that is open to the front is covered, so that the shelf board is prevented from slipping forward. And the adjustment of the height position of a shelf board can be easily performed by removing the removable front decorative member.
[0038]
In this specification, front, rear, left and right mean front, rear, left and right when the article placement shelf is viewed from the front, and the first shelf is front, rear, left and right when viewed in the direction of arrow A1 in FIG. In the second shelf, it means front, rear, left and right when viewed in the direction of arrow A2 in FIG. Further, when it is not necessary to distinguish the left side portion and the right side portion, they are collectively referred to as a side portion, and when it is not necessary to distinguish between the left end and the right end, they are collectively referred to as a side end.
[0039]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to FIGS.
FIG. 1 is a perspective view showing a partially disassembled state of a bookcase 1 that is an embodiment of an article placement shelf of the present invention, and FIG. 3 is a partial front view of the bookcase 1. This bookcase 1 is used in a library, for example. In FIG. 1, the front side when viewed from the arrow A1 which is the opposite direction of the front-rear direction is the first front side, and the front side when viewed from the arrow A2 is the first side. 2 is an assembly-type triple duplex bookcase with a front surface. The bookshelf 1 includes four side plates 2 and 3, three back plates 4 having the same specifications, 30 shelf plates 5 and 6 having the same specifications, six bottom plates 7, 8, and 3 having the same specifications. The top plate 9 of the same specification is provided with three bases 10 of the same specification.
[0040]
Among these, the side plates 2 and 3 are composed of two end side plates 2 of the same specification on both the left and right ends of the book shelf 1 and two intermediate side plates 3 of the same specification arranged between the both end side plates 2 and 2. Thus, the intermediate side plate 3 has a thickness twice that of the end side plate 2. 4 is a partial sectional view taken along line IV-IV in FIG. 6, FIG. 5 is a partially enlarged view of FIG. 4, and FIG. 6 is a sectional view taken along line VI-VI in FIG. The bottom surfaces of the shelf plates 5 and 6 are provided with a single groove 11 having a predetermined length in the left-right direction and a predetermined width in the front-rear direction, and provided on the front wall surface and the rear wall surface of the groove 11. A spring for preventing the books such as books and files that are placed on the shelf plates 5 and 6 and the bottom plates 7 and 8 from collapsing in the pair of arcuate engagement grooves 11a and 11b. A pair of engaging portions of the book support 12 made of steel engage with each other using the elastic force of the book support 12 itself.
[0041]
In addition, the book shelf 1 includes an end side plate 2 and an intermediate side plate 3, both intermediate side plates 3 and 3, and a center portion in the front-rear direction between three pairs of adjacent side plates including the intermediate side plate 3 and the end side plate 2. The first shelf on the first front side and the second shelf on the second front side are provided with a single back plate 4 arranged at the front. The first shelf is divided between the first bottom plate 7 and the top plate 9 and is partitioned by five first shelf plates 5 installed between a pair of side plates 2, 3, 3, 3 in each set. Similarly, the second shelf is disposed between the second bottom plate 8 and the top plate 9 and is located between the pair of side plates 2, 3, 3, 3. There are six stages of shelves partitioned by five second shelves 6 installed on the board.
[0042]
Here, the end side plate 2, the intermediate side plate 3, the back plate 4, and the shelf plates 5 and 6 are formed of a bamboo laminated material. Specifically, as shown in FIG. 2, which is a partially enlarged view of FIG. 1, the end side plate 2 has a plate-like strip elongated in the direction of bamboo fibers, and the bookcase 1 is assembled. A large number of layers are stacked and integrated in the vertical direction, and the direction of the bamboo fibers is the front-rear direction. The intermediate side plate 3 is also formed of a bamboo laminated material having the same mode as the end side plate 2. On the other hand, the back plate 4 is formed by laminating and integrating a large number of plate-like strips in the direction of the bamboo fibers in the vertical direction, and the direction of the bamboo fibers is the horizontal direction. 5 and 6, as shown in FIG. 5, plate-like strips elongated in the direction of bamboo fibers are stacked and integrated in the front-rear direction, and the direction of bamboo fibers is the left-right direction. Has been.
[0043]
Hereinafter, a structure for forming six stages of first and second shelves between a pair of side plates including a right end side plate 2 and a right intermediate side plate 3 of the book shelf 1 will be described with reference to FIGS. Referring to FIG. 9, the second pair of side plates, that is, between the intermediate side plates 3 and 3, and between the left intermediate side plate 3 and the left end side plate 2 will be described in detail. The structure for forming the six shelf stages of the first and second shelf parts is the same as the structure described below.
[0044]
Referring to FIGS. 1 and 4, the base 10 formed of a rectangular frame is composed of two angle members 13 (two on the right and left frames, respectively) An angle member 13 fixed to the frame portion is shown) and is fixed to a base such as a floor. The end side plate 2 and the intermediate side plate 3 are bolts 15 penetrating through bolt holes 14 provided in the base 10 disposed between the side plates 2 and 3 in embedded nuts provided at the lower portions of the side plates 2 and 3. Are coupled to the base 10, and further to the embedded nuts provided on the upper portions of the side plates 2 and 3, and the frame 16 of the top plate 9 disposed between the side plates 2 and 3. A bolt (not shown) that penetrates the provided bolt hole 17 is screwed to be coupled to the top plate 9. Therefore, working spaces 18 for fastening bolts are formed on the right and left sides of the top plate 9. The entire lower surface of the frame body 16 of the top plate 9 is covered with a single outer plate 19, and the entire upper surface of the frame body is made of wood to cover the outer plate 20 at the center and the space 18. It is covered with a pair of left and right lid plates 21 fixed to the frame with screws.
[0045]
On the front surface of the top plate 9 on the first and second front sides, a mounting portion 23 to which a holder 22 for inserting a label is mounted is provided. Referring to FIG. 7 which is a partial sectional view taken along line VII-VII in FIG. 3, FIG. 8 which is a partial sectional view taken along line VIII-VIII in FIG. 3, and FIG. The front mounting portion 23 includes a wide receiving groove 23a provided over the entire length of the first front surface of the top plate 9 in the left-right direction, and a receiving groove 23a at the center in the vertical direction on the bottom wall surface of the receiving groove 23a. The locking groove 23b is narrower than the top plate 9 and is provided over the entire length of the top plate 9 in the left-right direction. The locking groove 23b is a dovetail-shaped groove whose width in the vertical direction increases from the opening 23b1 toward the bottom wall surface. In addition, a mounting portion 23 having the same structure as the front mounting portion 23 on the first front side is also provided on the front surface on the second front side.
[0046]
Then, a rectangular holder 22 made of a transparent synthetic resin and extending in the left-right direction has a predetermined length in the left-right direction at the insertion portion 22a into which the heading tag is inserted and the center portion of the holder 22. And a locking portion 22b including a pair of upper and lower locking pieces 22b1. The insertion portion 22a includes a flat plate-like display portion 22a1 and a pair of flat plate-like upper and lower portions whose upper and lower portions of the display portion 22a1 are curved backward in a U shape and extend to the vicinity of the center position of the holder 22 in the vertical direction. An insertion space 22a3 is formed between the holding portion 22a2 and a heading tag is inserted into the insertion space 22a3 from the left and right directions. In addition, the vertical interval between the two locking portions 22b1 formed continuously with the pair of holding portions 22a2 corresponds to the vertical width of the locking groove 23b from the insertion portion 22a toward the tip. Is increased to be larger than the vertical width of the opening 23b1 of the locking groove 23b, and at the tip thereof, the both end portions are curved so as to approach each other, and the leading end 22b2 of the both end portions is vertically moved. Is set to be smaller than the vertical width of the opening 23b1. Thus, when the holder 22 is mounted on the top plate 9, the holder 22 is held by the locking piece 22b1 by pushing the tip portions of the locking pieces 22b1 into contact with the openings 23b1 of the locking grooves 23b. Using elasticity, it is easily engaged with the locking groove 23b and mounted on the top plate 9, and the holder 22 can be easily moved in the left-right direction.
[0047]
On the other hand, as shown in FIGS. 1 and 3, the back plate 4 has a pair of left and right step portions 4 a provided on the lower surface thereof in contact with the upper surface of the center portion in the front-rear direction of the base portion 10. Supported. Further, on the first and second front sides of the lower portion of the back plate 4, a support portion 24 (see also FIG. 4) having a predetermined length in the left-right direction is joined to the center portion in the left-right direction. . The first bottom plate 7 and the second bottom plate 8 placed on the upper surface of the base 10 on the first front surface side and the second front surface side of the back plate 4 are detachable from the base 10 and the back plate 4 by the coupling means 25. Fixed to. As shown in FIG. 10, the coupling means 25 includes a synthetic resin female connector 26 having a pair of gripping portions 26a and a synthetic resin male connector 27 having a shaft portion 27a. A pair of gripping portions 26a of the female connector 26 fixed with wood screws B at two positions on the front and rear edges of the bottom surfaces of the bottom plates 7 and 8, respectively, By engaging with the shaft portion 27a of the male connector 27 fixed to the lower edge portion of the back plate 4 with wood screws B and holding the shaft portion 27a, the base plate 10 is detachably fixed. Is done. Furthermore, the support 24 supports the central portions of the rear edges of the first and second bottom plates 7 and 8, respectively, and the first and second bottom plates 7 and 8 bend when the books are placed. Is prevented.
[0048]
The back plate 4 has eight pins 29 (pins 29 provided on the intermediate side plate 3 are shown in FIG. 1) protruding from the inner side surfaces of the end side plate 2 and the intermediate side plate 3 facing each other. It is fixed by the coupling means 28. That is, the coupling means 28 is a partial cross-sectional view of the coupling portion between the back plate 4 and the intermediate side plate 3, and as shown in FIG. 11 which is a partial cross-sectional view taken along the line XI-XI in FIG. A steel pin 29 screwed into a nut 30 embedded in the side plate 3, a nut 31 having a flange 31a fixed to the first front side of the back plate 4 with a wood screw B, and a tapered tip A locking bolt 32 having a portion 32a, and a tip end portion 32a of the locking bolt 32 screwed into the nut 31 engages with a tapered locking hole 29a provided in the pin 29, thereby making the back plate 4 and the intermediate side plate 3 are coupled. The connecting means 28 between the back plate 4 and the end side plate 2 is also different in that the nut 30 is fixed to the end side plate 2 instead of the intermediate side plate 3 with a wood screw B. 4 and the intermediate means 3 are the same as the connecting means 28.
[0049]
Here, the four pins 29 attached to the side plates 2 and 3 are arranged at equal intervals in the vertical direction at the center position in the front-rear direction of the side plates 2 and 3, and are attached to the back plate 4. Four eight nuts 31 are arranged on the left and right side edge portions 4c of the back plate 4 at positions corresponding to the height positions of the pins 29. Therefore, the back plate 4 is fixed to the center portion in the front-rear direction of the side plates 2 and 3.
[0050]
1 to 4, the first shelf plate 5 or the second shelf plate 6 is placed on both side plates 2 at the front portions on the first and second front sides of the end side plate 2 and the intermediate side plate 3. , 3, 3 has a shelf receiving portion 40 which is a first shelf receiving portion for supporting the shelf plates 5, 6, and the height positions of the shelf plates 5, 6 are adjustable. An adjustment unit C1 is provided as a first adjustment unit.
[0051]
  First, the adjustment part C1 on the first front surface side of the end side plate 2 will be described. At the front portion of the end side plate 2, it is provided between the bottom plate 7 and the top plate 9 at equal intervals over a predetermined range in the vertical direction. A plurality of stages, preferably a plurality of stages, in this embodiment, 34 stages of shelf receivers 40 are provided. Each shelf receiving portion 40 opens to the front surface of the end side plate 2 so as to open forward, and a slit 41 which is a first slit extending in the front-rear direction and horizontally with a predetermined length,Penetrate the end side plate 2 in the left-right directionIt is formed by providing. All these slits 41 have the same shape and dimensions, and a projection 5a (described later) of the first shelf 5 can be inserted into and removed from each slit 41. Therefore, each shelf receiving portion 40 which is a part of the end side plate 2 has its front end located at the front edge portion of the end side plate 2.
[0052]
The lower wall surface, which is a part of the peripheral wall surface of the slit 41, is a surface that supports the convex portion 5a when the right convex portion 5a of the shelf board 5 is engaged with the slit 41. The support surface 40a of the shelf receiving part 40 formed below is formed. The vertical spacing between the support surfaces 40a of the adjacent shelf receiving portions 40 depends on the vertical spacing between the slits 41, and the adjustment pitch is the minimum adjustment amount when adjusting the height position of the shelf board 5. It prescribes. As shown in FIG. 6, when the convex portion 5a is supported by the shelf receiving portion 40 of the end side plate 2, the right side surface of the right convex portion 5a is the outer side surface (right side surface) of the end side plate 2. Therefore, the shelf receiving portion 40 supports the right convex portion 5a by utilizing substantially the entire thickness of the end side plate 2.
[0053]
  Further, the length of the support surface 40a in the front-rear direction is such that when the convex portion 5a is inserted to the position of the rearmost portion of the slit 41, the front surface of the shelf plate 5 is slightly flush with the front surface of the end side plate 2 or slightly from the front surface. It is set to be the position. Further, the width of the slit 41 in the vertical direction is a slit which will be described later provided on the back plate 4 when the shelf plate 5 is inserted between the side plates 2 and 3.51a , 51bIn order to allow a slight inclination of the shelf 5 when engaging the grooves 53a and 53b of the right and left projections 5c and 5d, which will be described later, of the rear portion of the shelf board 5 with the projections 52a and 52b, respectively, It is set so that a slight gap G (see FIG. 5) is formed between the upper wall surface of the slit 41 and the upper surface of the shelf board 5 in a state where the convex portion 5a is supported by the support surface 40a.
[0054]
On the other hand, the adjusting portion C1 of the intermediate side plate 3 is also provided in substantially the same manner as the adjusting portion C1 of the end side plate 2 except that the thickness of the intermediate side plate 3 is different from the thickness of the end side plate 2. . As shown in FIG. 6, when the left convex portion 5b is engaged with the slit 41 of the intermediate side plate 3 and the convex portion 5b is supported by the shelf receiving portion 40, the left side surface of the convex portion 5b is The intermediate side plate 3 occupies a substantially central position in the left-right direction, and on the left side, the right side surface of the right convex portion 5a of the shelf plate 5 laid on both the intermediate side plates 3, 3 is also in the left-right direction of the intermediate side plate 3. Occupies approximately the center position. In this way, the two convex portions 5a and 5b of the shelf plate 5 adjacent in the left-right direction are supported side by side in the left-right direction on the same-stage shelf receiving portion 40 of the single intermediate side plate 3, and The shelf receiving part 40 supports these two convex parts 5a and 5b using substantially the entire thickness of the intermediate side plate 3.
[0055]
Further, the adjustment part C1 on the second front side of the end side plate 2 and the adjustment part C1 on the second front side of the intermediate side plate 3 are also the same as the adjustment part C1 on the first front side of the end side plate 2 and the intermediate side plate 3, respectively. Structured. Therefore, the first and second shelf plates 5 and 6 can be inserted into and removed from the slits 41 from the front of the first and second shelf portions, respectively.
[0056]
  1 to 6, the back plate 4 has the adjusting portions of the side plates 2 and 3 corresponding to the adjusting portions C1 of the pair of side plates of the right end side plate 2 and the right intermediate side plate 3. An adjustment unit C2, which is a second adjustment unit, is provided with the number of shelf receiving units 50 equal to the number of steps of the shelf receiving unit 40 of C1. Each shelf receiving portion 50 provided at the same height position as the corresponding shelf receiving portion 40 of the side plates 2 and 3 extends horizontally by a predetermined length in the left-right direction, leaving the left and right side edge portions 4c. Slit 51 which is the second slit with the same number of steps asThrough the back plate 4 in the front-rear directionIt is formed by providing. In this embodiment, each slit 51 has two first partial slits 51a (located on the right side when viewed from the first front side) and second partial slits 51b (from the first front side) arranged side by side. The left and right sides of the partial slits 51a and 51b form a partition 4b extending in the vertical direction at the center of the back plate 4. Therefore, each shelf receiving portion 50 of the back plate 4 is formed by providing the first partial shelf receiving portion 50a and the second partial slit 51b formed by providing the first partial slit 51a. The lower wall surface, which is composed of the receiving portion 50b and is a part of the peripheral wall surface of each partial slit 51a, 51b, is a partial slit 51a, corresponding to each convex portion 5c, 5d, 6c, 6d at the rear part of the shelf plates 5, 6. When engaged with 51b, the first and second partial shelf receiving portions are surfaces that support the convex portions 5c, 5d, 6c, and 6d and are respectively formed below the first and second partial slits 51a and 51b. Support surfaces 50a1 and 50b1 of 50a and 50b are formed. The vertical spacing between the support surfaces 50a1 and 50b1 of both the partial shelf receiving portions 50a and 50b adjacent in the vertical direction defines the adjustment pitch as in the case of the side plates 2 and 3.
[0057]
Further, on the peripheral wall surface of each of the partial slits 51a and 51b, a single protrusion 52a and 52b is provided over the entire circumference at the center portion in the front-rear direction of the peripheral wall surface (the center portion in the front-rear direction of the back plate 4). It has been. And the ridge 52a, 52b provided in the lower wall surface of each partial slit 51a, 51b, ie, support surface 50a1, 50b1, is covered with the concave grooves 53a, 53b, 54a, 54b of the shelf plates 5, 6. The locking portions of the first and second partial shelf receiving portions 50a and 50b that engage with the locking portion are configured. Then, the convex portions 5c, 5d, 6c, 6d at the rear of the shelf plates 5, 6 are detachable with respect to the partial slits 51a, 51b, and the convex portions 5c, 5d, 6c, 6d are respectively inserted into the partial slits. When engaged with 51a, 51b, the convex portions 5c, 5d, 6c, 6d are supported by the support surfaces 50a1, 50b1.
[0058]
Next, the first shelf 5 of the first shelf will be described. As shown in FIGS. 1 and 6, the first shelf 5 is a first convex portion that protrudes to the right and left, respectively, at the front of the right side and the left side that are the sides. A right convex portion 5a and a left convex portion 5b are provided, and a right convex portion 5c and a left convex portion 5d, which are second convex portions protruding rearward at a predetermined interval in the left-right direction, are provided at the rear portion.
[0059]
The right and left projections 5a and 5b on both sides of the first shelf 5 are supported by the shelf receiver 40 at the same level by engaging with the slits 41 at the same level of the end side plate 2 and the intermediate side plate 3. Thus, the first shelf board 5 is supported by the both side boards 2 and 3. Further, the right and left convex portions 5c and 5d of the rear portion of the first shelf 5 are straight lines that engage with the convex strips 52a of the first partial shelf receiving portion 50a and the convex strips 52b of the second partial shelf receiving portion 50b, respectively. 1-shaped concave grooves 53a, 53b are provided extending in the left-right direction over the entire length of the convex portions 5c, 5d. The right and left convex portions 5c and 5d are first on the same level as the both side plates 2 and 3 with the convex portions 5a and 5b on both sides of the first shelf 5 supported by the shelf receiving portion 40. , Engaged with the second partial slits 51a and 51b, respectively, and supported by the partial shelf receiving portions 50a and 50b, whereby the first shelf 5 is supported by the back plate 4. At this time, when viewed from the first front side, the right convex portion 5c is located on the right side of the first partial slit 51a, the left convex portion 5d is located on the right side of the second partial slit 51b, and both convex portions 5c, 5d. The concave grooves 53a and 53b are respectively engaged with the ridges 52a and 52b of the first and second partial shelf receiving portions 50a and 50b, whereby the first shelf 5 is connected to the side plates 2 and 3 and the back. While being supported by the plate 4 in a horizontal state, the forward movement of the first shelf plate 5 is restricted.
[0060]
On the other hand, in the second shelf 6 having the same specifications as the first shelf 5 as described above, the right and left convex portions 6a and 6b are provided on both sides, and the right and left convex portions 6c and 6d are provided on the rear portion. Further, concave grooves 54a and 54b are respectively provided in the convex portions 6c and 6d, and are supported by the side plates 2 and 3 and the back plate 4 in the same form as the first shelf plate 5. Therefore, the back plate 4 is a single back plate 4 common to the first and second shelf plates 5 and 6, and as shown in FIG. 6, the first and second partial shelves on the same stage. In the receiving portions 50a and 50b, the concave groove 54a of the right convex portion 6c and the concave groove 54b of the left convex portion 6d of the second shelf 6 are formed into the convex strips 52a and 52b of the first and second partial shelf receiving portions 50a and 50b. In addition, the engagement positions of the concave grooves 53a and 53b of the right and left convex portions 5c and 5d of the first shelf board 5 are engaged at different positions in the left-right direction, respectively. In other words, the concave grooves 53a and 53b of the right and left convex portions 5c and 5d of the first shelf 5 and the concave grooves 54a and 54b of the concave grooves of the right and left convex portions 6c and 6d of the second shelf 6 are formed. The ridges 52a and 52b are alternately engaged in the left-right direction. That is, the right convex portion 5c of the first shelf 5 is in a state of facing the rear surface of the second shelf 6 with a gap on the right side of the first partial shelf receiving portion 50a when viewed from the first front side. The left convex portion 5d of the first shelf 5 is positioned on the right side of the left convex portion 6d of the second shelf 6 and the second shelf is located on the right side of the second partial shelf receiving portion 50b when viewed from the first front side. It is located on the right side of the right convex portion 6c of the second shelf 6 in a state of facing the rear surface of the plate 6 with a gap. Similarly, the right convex portion 6c of the second shelf 6 is opposed to the rear surface of the first shelf 5 with a gap on the left side of the second partial shelf receiving portion 50b when viewed from the first front side. The left convex part 6d of the second shelf 6 is located on the left side of the first partial shelf receiving part 50a when viewed from the first front side. It is located on the left side of the right convex portion 5c of the first shelf 5 in a state of facing the rear surface of the shelf 5 with a gap. Thereby, it is avoided that the rear surfaces of the first shelf board 5 and the second shelf board 6 come into contact with each other, and each shelf board 5, 6 has a partition part 4 b which is a center part of the back board 4 and left and right side edges. In contact with the portion 4c, the front surfaces of the respective shelf plates 5 and 6 are surely occupied in a predetermined position. At this time, in the first and second partial shelf receiving portions 50a and 50b, the right and left convex portions 5c, 5d, 6c and 6d of the shelf plates 5 and 6 utilize the entire thickness of the back plate 4. Although not supported, each of the partial shelf receiving portions 50a and 50b has a length in the left-right direction that provides sufficient support strength. If necessary, the right and left convex portions 5c, 5d, 6c and 6d of the shelf plates 5 and 6 can be supported using substantially the entire thickness of the back plate 4.
[0061]
Next, operations and effects of the embodiment configured as described above will be described.
When the first and second shelf plates 5, 6 are installed between three pairs of side plates 2, 3, 3, 3, each shelf plate 5, 6 is paired with a pair of side plates 2, 3, 3, 3. The right and left convex portions 5a, 5b, 6a, 6b on both sides of each shelf plate 5, 6 are inserted into the slit 41 of the step at a desired height from the front to the rear. Thus, the right and left convex portions 5c, 5d, 6c and 6d of the rear portions of the shelf plates 5 and 6 are supported by the shelf receiving portion 40, and the first and second steps are the same as the slits 41 of the side plates 2 and 3. By being inserted into the partial slits 51a, 51b, it is supported by the first and second partial shelf receiving portions 50a, 50b, whereby each shelf plate 5, 6 is paired with a pair of side plates 2, 3, 3, It is supported between 3 and the back plate 4. When adjusting the height positions of the shelf boards 5 and 6, the shelf boards 5 and 6 are slightly inclined to release the engagement state between the grooves 53a, 54b, 53b and 54a and the ridges 52a and 52b. Then, by pulling the shelf plates 5 and 6 forward, both convex portions 5c, 5d, 6c and 6d are extracted from both partial slits 51a and 51b, and then both convex portions 5a, 5b, 6a and 6b are slit 41. And the shelves 5 and 6 are removed. And both the convex parts 5a, 5b, 6a, 6b of the shelf boards 5 and 6 are inserted into the slit 41 of another step at a desired height position above or below, and further the both convex parts of the shelf boards 5 and 6 The portions 5c, 5d, 6c, 6d are engaged with the first and second partial slits 51a, 51b at the same height as the slit 41, and the concave grooves 53a, 54b, 53b, 54a are associated with the ridges 52a, 52b. The shelves 5 and 6 are inserted so as to be joined together, and are supported by the pair of side plates 2, 3, 3, 3 at the new height position and the shelf receiving portions 40, 50 of the back plate 4.
[0062]
And when convex part 5a, 5b, 6a, 6b is supported by the shelf receiving part 40 of the edge part side board 2, the shelf receiving part 40 utilizes the substantially whole thickness of the board thickness of the edge part side board 2, and convex part 5a. , 5b, 6a, 6b, and on the shelf receiving portion 40 on the same stage of the intermediate side plate 3, two convex portions 5a, 5b, 6a, 6b of the adjacent shelf plates 5, 6 are supported side by side. The shelf receiving portion 40 of the intermediate side plate 3 is substantially the entire thickness of the intermediate side plate 3, in other words, each convex portion 5 a, 5 b, 6 a, 6 b is approximately half the thickness of the intermediate side plate 3. Is used to support the two convex portions 5a, 5b, 6a, 6b.
[0063]
As a result, when the shelf plates 5 and 6 are set, the side convex portions 5a, 5b, 6a and 6b and the rear convex portions 5c, 5d, 6c and 6d are made into slits 41 at desired height positions. When the heights of the shelf plates 5 and 6 are adjusted, the side projections 5a, 5b, 6a, 6b and the rear projections 5c, 5d, 6c, 6d is extracted from the slit 41 and the partial slits 51a, 51b, and then the convex portions 5a, 5b, 6a, 6b and the convex portions 5c, 5d are added to another slit 41 and the partial slits 51a, 51b at a desired height position. , 6c and 6d can be inserted, so that the setting of the shelf plates 5 and 6 and the adjustment of the height positions of the shelf plates 5 and 6 can be performed in a short time. Moreover, since the shelf boards 5 and 6 are supported by the shelf receiving part 40 which can utilize substantially the full thickness of the side plates 2 and 3, the board thickness of the side plates 2 and 3 is the same as that of the shelf receiving part 40. The supporting surface 40a is not thicker than the thickness of the supporting surface 40a. Therefore, sufficient support strength of the shelf receiving portion 40 can be ensured without increasing the size and weight of the bookcase 1.
[0064]
Further, the convex portions 5a, 5b, 6a, 6b of the shelf plates 5, 6 are respectively supported by the shelf receiving portions 40 between the pair of side plates 2, 3, 3, 3, and the convex portions at the rear portions of the shelf plates 5, 6 Since 5c, 5d, 6c, 6d are supported by the partial shelf receiving portions 50a, 50b of the back plate 4, the load due to the weight of the books placed on the shelf plates 5, 6 is increased by the convex portions 5a, 5b, 6a, 6b and convex portions 5c, 5d, 6c and 6d are dispersed and supported by the side plates 2, 3 and the back plate 4. Thereby, since the load borne by the convex portions 5a, 5b, 6a, 6b is reduced, the dimension in the front-rear direction of the convex portions 5a, 5b, 6a, 6b can be shortened, and therefore the convex portions 5a, 5b, 6a. , 6b can be reduced in size in the front-rear direction of the slit 41 forming the shelf receiving portion 40, and the strength reduction of the side plates 2 and 3 due to the formation of the slit 41 can be suppressed.
[0065]
As a result, the dimensions of the slits 41 forming the shelf receiving portions 40 of the side plates 2 and 3 can be shortened, and the reduction in strength of the side plates 2 and 3 due to the formation of the slits 41 can be suppressed. The thickness can be reduced, and the bookcase 1 is reduced in size and weight.
[0066]
Furthermore, since the shelf receiving part 40 as a part of the side plates 2 and 3 formed by providing the slit 41 extending in the front-rear direction extends in the same front-rear direction as the direction of bamboo fibers forming the side plates 2 and 3, The shelf receiving portion 40 has high strength due to the toughness of bamboo. As a result, although the shelf receiving portion 40 is on the front edge of the side plates 2 and 3, damage such as chipping is less likely to occur, and a durable bookcase 1 can be obtained, and the formation intervals of the multiple slits 41 can be obtained. Since the shelf receiving portion 40 has sufficient strength to support the shelf plates 5 and 6 even if the width is narrowed, the minimum adjustment amount of the height position of the shelf plates 5 and 6, that is, the setting of the adjustment pitch is set. The degree of freedom increases.
[0067]
Since the direction of the bamboo fiber of the bamboo laminated material forming the first and second shelf boards 5 and 6 supported by the shelf receiving part 40 at the left and right sides is the left and right direction, The residual deflection of the plates 5 and 6 is extremely small. Therefore, the shelves 5 and 6 bend due to the weight of the books placed on the shelves 5 and 6, and the shelves 5 and 6 are supported by the shelf receivers 40 positioned on the left and right sides of the shelves 5 and 6. Even if it is curved in the vertical direction, when the books placed on it are removed, the shelf boards 5 and 6 are restored to their original shapes and do not remain curved.
[0068]
As a result, the first and second shelf plates 5 and 6 are hardly curved due to the residual deflection, and the initial shape of the shelf plates 5 and 6 can be maintained over a long period of time. Even if the vertical width of the slit 41 is set to a minimum allowable value in order to ensure the strength of the shelf receiving portion 40, the shelf plates 5 and 6 are inserted into and removed from the slit 41 due to the bending of the shelf plates 5 and 6. Thus, there is no inconvenience that the smoothing of the shelf plates 5 and 6 with respect to the slit 41 can be maintained over a long period of time.
[0069]
The concave grooves 53a, 53b, 54a, 54b of the rear convex portions 5c, 5d, 6c, 6d of the shelf plates 5, 6 engage with the convex strips 52a, 52b of the partial shelf receiving portions 50a, 50b of the back plate 4. Therefore, the shelf plates 5 and 6 are less likely to move forward even though the convex portions 5a, 5b, 6a and 6b on the side portions are merely inserted into the shelf receiving portions of the side plates 2 and 3. Thus, the protrusions 5a, 5b, 6a, and 6b are unlikely to come out from the slit 41 that opens forward. As a result, the shelf boards 5 and 6 can be stably held at predetermined positions, and the shelf boards 5 and 6 do not move when books etc. are moved on the shelf boards 5 and 6.
[0070]
In the double bookcase 1, the back plate 4 provided with both partial slits 51a, 51b is continuous in the vertical direction at the partition 4b located between the partial slits 51a, 51b, so that there are many back plates 4 in the vertical direction. Although the first and second shelf plates 5 and 6 are supported by the shelf receiving portion 50, the partition portion 4b can suppress the strength of the back plate 4 from being lowered. As a result, even if the formation intervals of the multiple slits 51 are narrowed, sufficient strength to support the shelves 5 and 6 can be obtained, and the minimum adjustment amount of the height position of the shelves 5 and 6, that is, the adjustment pitch The degree of freedom of setting is increased.
[0071]
Both convex portions 5c, 5d of the first shelf 5 and both convex portions 6c, 6d of the second shelf 6 are the support surfaces 50a1, 50a1 of the partial shelf receiving portions 50a, 50b defined by the plate thickness of the back plate 4. The rear surfaces of the projections 5c and 5d of the first shelf 5 and the projections 6c and 6d of the second shelf 6 that are installed on the same level at the same position in the left-right direction on 50b1 do not face each other. In the limit, it is possible to support each 2nd convex part using substantially the full thickness of the plate | board thickness of the backplate 4. FIG. As a result, also in each partial shelf receiving part 50a, 50b of the same step, the first and second shelf plates 5, 6 are supported in a stable state by the thickness of the back plate 4, and the entire thickness is utilized. Accordingly, the thickness of the back plate 4 can be reduced, and the article placement shelf can be reduced in size and weight.
[0072]
Since one protruding strip 52a, 52b of each partial shelf receiving part 50a, 50b of the back plate 4 is shared by the first and second shelf plates 5, 6, the first and second shelf plates 5, 6 It is not necessary to separately provide the convex strips 52a, 52b with which the concave grooves 53a, 53b, 54a, 54b of the convex portions 5c, 5d, 6c, 6d are engaged. There is no need to increase the thickness. Furthermore, since the 1st, 2nd shelf boards 5 and 6 are the same specifications, the mass production effect can be exhibited. As a result, the thickness of the back plate 4 can be reduced, and the bookcase 1 can be reduced in size and weight. Moreover, the cost of the bookshelf 1 can be reduced by the mass production effect.
[0073]
  1st and 2nd shelfPartThe shelf receiving portion 50 provided on the single back plate 4 shared in the above is formed by providing a slit 51 penetrating the back plate 4 in the same manner as a single book shelf. In spite of the back plate 4 having the receiving portion 50, the processing work amount of the shelf receiving portion 50 is equivalent to that of a single bookcase. The processing amount of the shelf receiving part 50 of the back plate 4 of the book shelf 1 does not increase, and the productivity of the book shelf 1 having the back plate 4 provided with the shelf receiving part 50 is improved. Further, a back plate having the same specifications as the back plate of a single book shelf can be used for the double book shelf 1, thereby reducing the cost of the book shelf 1.
[0074]
Both convex portions 5c and 5d at the rear of the first shelf 5 are opposed to the rear surface of the second shelf 6 through a gap, and both convex portions 6c and 6d at the rear of the second shelf 6 are the first shelf. It faces the rear surface of the plate 5 through a gap. As a result, it is avoided that the rear surfaces of the first shelf board 5 and the second shelf board 6 come into contact with each other, and each shelf board 5, 6 has a partition part 4 b that is a central part of the back board 4 and left and right side edges. By abutting against the portion 4c, the front surfaces of the respective shelf plates 5 and 6 can be surely occupied in a predetermined position.
[0075]
Hereinafter, an example in which a part of the configuration of the above-described embodiment is changed will be described with respect to the changed configuration.
In the above-described embodiment, since the front end of the shelf receiving portion 40 is located at the front edge of each side plate 2, 3, for example, the shelf receiving portion 40 may be damaged due to contact with a hard object such as a wagon carrying books. There is nothing to say. Therefore, in order to prevent such damage, a decorative member that covers the shelf receiving portion 40 from its side surface or front surface may be attached.
[0076]
That is, as shown in FIG. 12 which is a perspective view showing a partially disassembled state of the bookcase 1, the entire front surface of the intermediate side plate 3 is attached to the front surface of the intermediate side surface by the coupling means 62. Covered by two rod-shaped front decorative members 60 having a width in the left-right direction that is ½ of the thickness. As shown in FIG. 13, the coupling means 62 includes four embedded cylinders 63a having a truncated cone shape and four partial cylinders spaced in the circumferential direction so as to form an engagement hole 63b2. A synthetic resin female connector 63 integrally formed with an engaging portion 63b made of a piece 63b1, an embedded portion 64a having a four-stage truncated cone shape, and a cylindrical convex portion 64b having an enlarged diameter portion 64b1 And a male connector 64 made of synthetic resin and integrally molded. Then, as shown in FIG. 14 which is a partial perspective view before the front decorative member 60 of FIG. 12 is attached to the intermediate side plate 3, the female connector 63 in which the embedded portion 63 a is embedded in the front surface of the intermediate side plate 3. The convex portion 64b of the male connector 64 in which the embedded portion 64a is embedded in the back surface of the front decorative member 60 is fitted into the engaging hole 63b2 of the engaging portion 63b, and the convex portion 64b is elastic force of the partial cylindrical piece 63b1. Thus, the front decorative member 60 is detachably attached to the front surface of the intermediate side plate 3 by elastically engaging with the engaging portion 63b.
[0077]
Further, the entire outer side surface of the end side plate 2 is covered with a plate-shaped side decorative member 61 that is detachably attached to the outer side surface of the end side plate 2 by the coupling means 62. Here, the side decorative member 61 is formed by elastic engagement between the female connector 63 embedded in the end side plate 2 and the male connector 64 (not shown in FIG. 12) embedded in the back surface of the side decorative member 61. Is detachably attached to the end side plate 2. At this time, the length in the front-rear direction of the side decorative member 61 is set to be longer than the length in the front-rear direction of the end side plate 2 by twice the front-rear dimension of the front decorative member 60. When attached to the end side plate 2, the front edge 61 a protrudes forward from the front surface of the end side plate 2 to the same extent as the front decorative member 60.
[0078]
In the bookshelf 1 illustrated in FIG. 12, the side decorative member 61 protrudes forward from the front surface of the end side plate 2, thereby preventing damage to the shelf receiver 40 due to contact with an object. The front decorative member 60 is not attached to the front surface of the end side plate 2, but the front decorative member 60 may be attached.
[0079]
Therefore, according to the modified embodiment to which the decorative members 60 and 61 are attached, the following operations and effects are exhibited in addition to the operations and effects of the embodiments. That is, the front decorative member 60 covers the shelf receiving portion 40 at the front edge of the end side plate 2 and the intermediate side plate 3, and the side decorative member 61 covers the shelf receiving portion 40 at the front edge of the end side plate 2. Therefore, the object is prevented from coming into contact with the shelf receiving unit 40. Further, since the front opening member 60 covers the portion of the slit 41 that is open to the front, the shelf boards 5 and 6 are prevented from slipping forward. Further, since both decorative members 60 and 61 are detachable, maintenance such as replacement of the decorative members 60 and 61 is easy. By removing the front decorative member 60, the height positions of the shelf boards 5 and 6 can be adjusted.
[0080]
As a result, the shelf receiving part 40 is covered with the front decorative member 60 or the side decorative member 61, and the object is prevented from coming into contact with the shelf receiving part 40. Damage can be prevented from occurring. In addition, by attaching the front decorative member 60, the portion of the slit 41 that is open forward is covered, so that the shelf boards 5 and 6 are prevented from coming out forward. Further, the height position of the shelf boards 5 and 6 can be easily adjusted by removing the front decorative member 60.
[0081]
In each of the above-described embodiments, each slit 51 of the back plate 4 is composed of two partial slits 51a and 51b. However, it can also be composed of a single slit. Within one slit, the convex part at the rear part of the first shelf plate 5 and the convex part at the rear part of the second shelf board 6 are engaged with the convex strips at different positions in the left-right direction. Further, the ridges 52a and 52b may be provided on at least the lower wall surface of the peripheral wall surfaces of the partial slits 51a and 51b. Furthermore, the ridges 52a and 52b may be provided in a piecewise manner in the extending direction of the ridges within a range in which the forward movement of the shelf plates 5 and 6 can be restricted without being continuous. . Instead of the one ridge, the first ridge for the first shelf 5 and the second ridge for the second shelf 6 may be provided in parallel to each other. Further, at least the lower wall surfaces (support surfaces 51a1, 51b1) of the peripheral wall surfaces of the partial slits 51a, 51b are provided with a concave groove to form a locking portion, and the ridges that engage with the concave groove are provided on the shelf plates 5, 6 The right and left protrusions 5c, 5d, 6c, 6d may be provided to constitute the locked portion. Moreover, in the said Example, although the convex parts 5a, 5b, 5c, 5d, 6a, 6b, 6c, 6d of the shelf boards 5 and 6 were formed by some shelf boards 5 and 6 itself, Can also be formed of a separate member.
[0082]
In the above embodiment, the slit 51 of the back plate 4 is a slit that is not opened in the left-right direction, but may be a slit that is opened in the left-right direction. The back plate 4 may have a plurality of back plates arranged in the left-right direction. In the embodiment, the rear portions of the shelf plates 5 and 6 are supported by the shelf receiving portion 50 formed by the slits 51 provided on the back plate 4. It may be formed by a groove extending in the direction, and is not a slit having a long dimension in the left-right direction, but a substantially circular shape into which a substantially cylindrical convex portion provided at the rear part of the shelf plates 5 and 6 is inserted. It may be a hole. Further, the rear portions of the shelf plates 5 and 6 are the same number of pins as the number of stages of the slits 40 inserted into the holes or grooves provided on the rear surfaces of the shelf plates 5 and 6, and are arranged on the rear portion or back plate of the side plate. You may be made to be supported by the provided pin. Furthermore, in the shelf board which has a backrest, the said pin may be inserted in the hole or groove | channel provided in the rear surface of the backrest.
[0083]
The front decorative member that covers the entire front surface of the intermediate side plate 3 is composed of the two front decorative members 60, but may be a single front decorative member having a width in the left-right direction equal to the thickness of the intermediate side plate 3. .
[0084]
In the embodiment described above, the bookcase 1 is a double type, but it may be a single type. In addition, a multiple-type bookcase other than the triple type may be used, or a single-type bookcase provided with only two side plates may be used. Furthermore, in the said Example, although the articles | goods mounting shelf was a bookshelf, it may be a shelf which mounts articles other than books.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a state in which a book shelf according to an embodiment of the present invention is partially disassembled.
FIG. 2 is a partially enlarged view of FIG.
FIG. 3 is a partial front view of the bookshelf in FIG. 1;
4 is a partial cross-sectional view taken along line IV-IV in FIG. 6;
FIG. 5 is a partially enlarged view of FIG. 4;
6 is a cross-sectional view taken along the line VI-VI in FIG. 3;
7 is a partial cross-sectional view taken along line VII-VII in FIG.
8 is a partial cross-sectional view taken along line VIII-VIII in FIG.
FIG. 9 is a perspective view of a holder.
FIG. 10 is a perspective view of a coupling means.
11 is a partial cross-sectional view of a connecting portion between a back plate and an intermediate side plate, and is a partial cross-sectional view taken along line XI-XI in FIG. 3;
FIG. 12 is a perspective view showing a partially disassembled state of the bookcase to which the decorative member is attached.
FIG. 13 is a perspective view of a coupling means.
FIG. 14 is a partial perspective view before the decorative member is attached to the intermediate side plate.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Bookshelf, 2, 3 ... Side board, 4 ... Back board, 4b ... Partition part, 5 ... Shelf board, 5a, 5b, 5c, 5d ... Convex part, 6 ... Shelf board, 6a, 6b, 6c, 6d ... Convex Part, 7, 8 ... bottom plate, 9 ... top plate, 10 ... base, 11 ... concave groove, 12 ... book support, 13 ... angle material, 14 ... bolt hole, 15 ... bolt, 16 ... frame, 17 ... bolt hole , 18 ... space, 19, 20 ... outer plate, 21 ... lid plate, 22 ... holder,
23 ... Mounting part, 24 ... Support part, 25 ... Coupling means, 26,27 ... Connector, 28 ... Coupling means, 29 ... Pin, 30,31 ... Nut, 32 ... Locking bolt,
40 ... Shelf receiving part, 40a ... Support surface, 41 ... Slit,
50 ... Shelf receiving part, 50a, 50b ... Partial shelf receiving part, 50a1, 50b1 ... Support surface, 51 ... Slit, 51a, 51b ... Partial slit, 52a, 52b ... Projection, 53a, 53b, 54a, 54b ... Concave groove ,
60, 61 ... decorative member, 62 ... coupling means, 63, 64 ... connector,
B ... Wood screw, C1, C2 ... Adjustment part, G ... Gap.

Claims (7)

棚板と、第１棚受部を有して前記棚板の高さ位置を調節自在とするための調節部が設けられた複数の側板とを備え、１対の前記側板の間に架設された前記棚板の両側部が前記１対の側板の前記第１棚受部にそれぞれ支持されることで前記棚板が前記１対の側板に支持される物品載置棚において、
前記第１棚受部は、前記各側板に上下方向に間隔をおいて複数段設けられ、前記各第１棚受部は、前記各側板を左右方向に貫通して前記各側板の前方に開放すると共に前後方向に延びる第１スリットを設けることにより前記各側板の前部に形成され、前記棚板の前記各側部は、前記第１スリットに対して前方から前後方向に抜き差し自在な第１凸部を有し、前記第１棚受部は前記側板の板厚の略全厚みを利用して前記第１凸部を支持し、前記第１凸部が前記第１スリットに差し込まれることで前記棚板が前記第１棚受部に支持されると共に、前記第１凸部の前記第１スリットに対する前方からの抜き差しにより、前記棚板が前記１対の側板に対して前方から前後方向に抜き差しされることを特徴とする物品載置棚。A shelf plate and a plurality of side plates having a first shelf receiving portion and provided with an adjustment portion for allowing the height position of the shelf plate to be adjusted, are spanned between a pair of the side plates. In the article placement shelf in which the shelf is supported by the pair of side plates by supporting both sides of the shelf by the first shelf receiving portions of the pair of side plates, respectively.
The first shelf receiving portions are provided in a plurality of stages on the side plates at intervals in the vertical direction, and the first shelf receiving portions open in front of the side plates through the side plates in the left-right direction. And a first slit extending in the front-rear direction is formed at a front portion of each side plate, and each side portion of the shelf plate is first detachable from the front in the front- rear direction with respect to the first slit. It has a convex part, the first shelf receiving part supports the first convex part using substantially the entire thickness of the side plate, and the first convex part is inserted into the first slit. The shelf plate is supported by the first shelf receiving portion, and the shelf plate is moved forward and backward with respect to the pair of side plates by inserting / removing the first convex portion with respect to the first slit. An article placement shelf that is inserted and removed. 前記物品載置棚は、前記１対の側板の間に位置する背板を備え、該背板には、前記複数の第１棚受部にそれぞれ対応する高さ位置に設けられた複数段の第２棚受部が設けられ、該各第２棚受部は、前記背板を前後方向に貫通すると共に左右方向に延びる第２スリットを設けることにより形成され、前記棚板の後部は、前記第２スリットに対して前後方向に抜き差し自在な第２凸部を有し、該第２凸部が前記第２スリットに後方に突出しないように差し込まれることで、前記棚板が前記第２棚受部に支持され、前記第２凸部の前記第２スリットに対する前方からの抜き差しにより、前記棚板が前記背板に対して前方から前後方向に抜き差しされることを特徴とする請求項１記載の物品載置棚。The article placement shelf includes a back plate positioned between the pair of side plates, and the back plate has a plurality of stages of first plates provided at height positions respectively corresponding to the plurality of first shelf receiving portions. 2 shelf receiving portions are provided, each of the second shelf receiving portions is formed by providing a second slit that penetrates the back plate in the front-rear direction and extends in the left-right direction, and the rear portion of the shelf plate is A second convex part that can be inserted and removed in the front-rear direction with respect to the two slits, and the second convex part is inserted so as not to protrude rearward into the second slit, so that the shelf board receives the second shelf holder. is supported in part by insertion and removal from the front with respect to the second slit of the second convex portions, according to claim 1 Symbol mounting said shelf plate is characterized Rukoto be inserted and removed in the longitudinal direction from the front to the back plate Goods storage shelf. 前記各第２スリットは、上下方向に延びる仕切部により左右方向に分けられた複数の部分スリットからなり、前記各部分スリットに前記第２凸部が差し込まれることを特徴とする請求項２記載の物品載置棚。Wherein each of the second slits is vertically divided by the partition portion-extending Ri Do a plurality of portions slits divided into left and right directions, claim 2, wherein said Rukoto the second convex portion is inserted into each part slit The article mounting shelf as described. 前記第２凸部に設けられた被係止部が、前記第２棚受部に設けられた係止部と係合することにより、前記棚板の前方への移動が規制されることを特徴とする請求項２または請求項３記載の物品載置棚。The forward movement of the shelf plate is restricted by the engaged portion provided in the second convex portion engaging with the engaging portion provided in the second shelf receiving portion. The article placement shelf according to claim 2 or 3 . 前記物品載置棚は、前後方向の反対方向をそれぞれ前面とする第１棚部および第２棚部を有する複式の棚であり、前記棚板は、第１棚板および第２棚板からなり、前記背板は、前記第１棚部および前記第２棚部に共通の単一の背板であり、前記第２凸部に設けられた凹溝が、前記第２棚受部に設けられた１条の突条と係合することにより、前記棚板の前方への移動が規制され、前記第１棚板の前記凹溝と前記第２棚板の前記凹溝とは、前記凸条と左右方向の異なる位置で係合し得ることを特徴とする請求項２ないし請求項４のいずれか１項記載の物品載置棚。 The article placement shelf is a duplex shelf having a first shelf portion and a second shelf portion whose front faces are opposite directions in the front-rear direction, and the shelf board includes a first shelf board and a second shelf board. The back plate is a single back plate common to the first shelf and the second shelf, and a groove provided in the second convex portion is provided in the second shelf receiving portion. Further, the forward movement of the shelf plate is restricted by engaging with the single protrusion, and the concave groove of the first shelf plate and the concave groove of the second shelf plate are The article placement shelf according to any one of claims 2 to 4, wherein the article placement shelf can be engaged at different positions in the left-right direction. 前記物品載置棚は、前後方向の反対方向をそれぞれ前面とする第１棚部および第２棚部を有する複式の棚であり、前記棚板は、第１棚板および第２棚板からなり、前記背板は、前記第１棚部および前記第２棚部に共通の単一の背板であり、前記第１棚板の前記第２凸部および前記第２棚板の前記第２凸部は、前記第２棚受部にて、左右方向の異なる位置で支持され、前記第１棚板および前記第２棚板は、同一仕様の棚板であることを特徴とする請求項２ないし請求項４のいずれか１項記載の物品載置棚。 The article placement shelf is a duplex shelf having a first shelf portion and a second shelf portion whose front faces are opposite directions in the front-rear direction, and the shelf board includes a first shelf board and a second shelf board. The back plate is a single back plate common to the first shelf and the second shelf, and the second projection of the first shelf and the second projection of the second shelf. parts are at the second shelf receiving is supported at different positions of the left-right direction, the first shelf plate and the second shelf board, to claims 2, characterized in that a shelf plate of the same specification The article placement shelf according to claim 4 . 前記各側板の前面には、前記第１スリットの、前方に開放されている部分を覆う前面化粧部材が、着脱自在に取り付けられていることを特徴とする請求項１ないし請求項６のいずれか１項記載の物品載置棚。Wherein the front face of the side plates, the first slit, the front decorative member for covering the part that is open to the front, one of claims 1 to 6, characterized in that removably attached Item storage shelf of item 1.
JP2000259978A 2000-08-29 2000-08-29 Article placement shelf Expired - Fee Related JP3707670B2 (en)

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