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2. 发明专利

JP4803842B2 For the production of formwork of oblique angle top version block 有权
公开(公告)号：JP4803842B2
公开(公告)日：2011-10-26
申请号：JP2008139912
申请日：2008-05-28
申请人：前田製管株式会社
发明人：啓佐藤 , 高伸山崎 , 巧渡部 , 健鎌田
IPC分类号： B28B7/02 , B28B7/04 , E01C1/04 , E03F3/04

3. 发明专利

JP4958801B2 Branch section structure of the underground structures 有权
公开(公告)号：JP4958801B2
公开(公告)日：2012-06-20
申请号：JP2008001289
申请日：2008-01-08
申请人：前田製管株式会社
发明人：啓佐藤
IPC分类号： E03B11/14 , E02B5/02 , E02B9/06 , E02F5/10 , E03F3/04 , F16L1/038
CPC分类号： Y02E10/22
摘要： PROBLEM TO BE SOLVED: To provide a branch part structure of an underground construction, which can flexibly cope even with a branch part at which groove channels such as utility tunnels cross at an oblique angle, by preparing a plurality of precast corner wall members whose corner angles are adjusted, and facilitates construction thereof by connecting thereto ordinary box culverts as the groove channels. SOLUTION: In formation of the branch part structure, the corner wall members 1 each formed of side walls 3 erected from two mutually adjacent sides of a bottom slab 2, are set at four corners at intervals, and the box culverts 5 are each connected to both the mutually opposed side walls of the corner wall members to form the branch part Ha. The corner wall members are formed into a unitary body via the bottom slab by concrete poured on a bottom portion of the branch part, and an upper opening of the branch part is blocked with a top slab 7. COPYRIGHT: (C)2009,JPO&INPIT

5. 实用新型

JP3192516U JP3192516U - Steel concrete composite pile 有权
公开(公告)号：JP3192516U
公开(公告)日：2014-08-21
申请号：JP2014002575U
申请日：2014-05-19
申请人：前田製管株式会社
发明人：寿夫長谷川 , 啓佐藤
摘要：【課題】杭設置時にフーチング結合用補強鉄筋に回転伝達力の負荷が及ばない構造とする鋼管コンクリート複合杭を提供する。
【解決手段】鋼管コンクリート複合杭部Ａの頭部端版４に装着した固定端版５に、内外二重管７，８構造とした杭頭接合部Ｂの下端部を、前記内筒管は前記固定端版の内周面側の切り欠き部に前記内筒管の下端の突起部を嵌め合わせ、前記外筒管は前記固定端版の外周にボルト９結合で固定して、前記杭頭接合部と鋼管コンクリート複合杭部とを一体に連結するとゝもに、前記複合杭部のコンクリート３から前記頭部端版および固定端版を貫通して前記杭頭接合部内に延伸するフーチング結合用補強鉄筋Ｄの上方部分を前記内外管の間の鞘部空間に収納し、前記杭頭接合部の上端開口部に設置した保護カバーＣの周壁部に前記杭頭接合部の外筒管７の上端部をボルト１５結合により固定した。
【選択図】図１

7. 发明专利

JP4958744B2 Reinforced concrete gutter 有权
公开(公告)号：JP4958744B2
公开(公告)日：2012-06-20
申请号：JP2007300721
申请日：2007-11-20
申请人：前田製管株式会社
发明人：啓佐藤 , 健鎌田
IPC分类号： E03F5/04
CPC分类号： Y02A30/68
摘要： PROBLEM TO BE SOLVED: To provide a side ditch which prevents the appearance of cracks in portions except a cracking inducing joint portion by providing the cracking inducing joint portion in the sidewall portion of the side ditch so as to make the cracking inducing joint portion induce cracking. SOLUTION: Structurally, this side ditch is formed of inward inclined planes 4A and 4B which are elongated inward toward a pile cap portion 3A and a base portion 3B from the vertical central portions of the right and left sidewall portions 3C, respectively; and the cracking inducing joint portions 7 are formed throughout the whole lengths of the vertical central portions of the right and left sidewall portions, respectively. COPYRIGHT: (C)2009,JPO&INPIT

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