A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
STAIR JUNCTION STRUCTURE AND STAIR CONSTRUCTION METHOD
PROBLEM TO BE SOLVED: To provide a stair junction structure and a stair construction method capable of constructing in ascending order from a lower level without coming and going between a front side and a rear side of the stairs during construction and generating less clearance between a footboard and a riser.SOLUTION: A footboard 20 comprises: a cutout part 21 formed by cutting a rear upper face of the footboard 20; a first sliding part 22 formed at an upper rear end of the footboard 20; an edge part 23 at angle of 90 degrees or less consisting of the cutout part 21 and an upper face of the footboard 20 in front of the cutout part 21. The riser 30 comprises a second sliding part 31 formed on a lower rear end of the riser 30; a projection 32, which is a lower front part of the riser 30 protruding downward and can be stored in the cutout part 21 of the footboard 20; and a vertical face part 33, which is at least a part of a front end of the projection 32 contacting to the edge part 23 of the footboard 20 and is a vertical face. At least one of the first sliding part 22 of the footboard 20 and the second sliding part 31 of the riser 30 inclines downward from the rear side to the front side.SELECTED DRAWING: Figure 1
【課題】施工中に階段の表側と裏側を行き来することなく下から順番に施工可能で、しかも踏板と蹴込板との間に隙間が生じ難い階段の接合構造及び階段の施工方法を提供する。【解決手段】踏板２０は、踏板２０の後部上面が切り欠かれてなる切欠部２１と、２０の上部後端に設けられた第一摺動部２２と、切欠部２１と切欠部２１の前側の踏板２０の上面によって形成された角度が９０°以下であるエッジ部２３と、を備えるとともに、蹴込板３０は、蹴込板３０の下部後端に設けられた第二摺動部３１と、蹴込板３０の下部前部が下方に突出し踏板２０の切欠部２１内に収容可能な突出部３２と、踏板２０のエッジ部２３に当接する突出部３２の前端の少なくとも一部であるとともに鉛直な面である鉛直面部３３と、を備え、踏板２０の第一摺動部２２及び蹴込板３０の第二摺動部３１のうち少なくとも一方が、後方から前方に向かって下方に傾斜した。【選択図】図１
STAIR JUNCTION STRUCTURE AND STAIR CONSTRUCTION METHOD
PROBLEM TO BE SOLVED: To provide a stair junction structure and a stair construction method capable of constructing in ascending order from a lower level without coming and going between a front side and a rear side of the stairs during construction and generating less clearance between a footboard and a riser.SOLUTION: A footboard 20 comprises: a cutout part 21 formed by cutting a rear upper face of the footboard 20; a first sliding part 22 formed at an upper rear end of the footboard 20; an edge part 23 at angle of 90 degrees or less consisting of the cutout part 21 and an upper face of the footboard 20 in front of the cutout part 21. The riser 30 comprises a second sliding part 31 formed on a lower rear end of the riser 30; a projection 32, which is a lower front part of the riser 30 protruding downward and can be stored in the cutout part 21 of the footboard 20; and a vertical face part 33, which is at least a part of a front end of the projection 32 contacting to the edge part 23 of the footboard 20 and is a vertical face. At least one of the first sliding part 22 of the footboard 20 and the second sliding part 31 of the riser 30 inclines downward from the rear side to the front side.SELECTED DRAWING: Figure 1
【課題】施工中に階段の表側と裏側を行き来することなく下から順番に施工可能で、しかも踏板と蹴込板との間に隙間が生じ難い階段の接合構造及び階段の施工方法を提供する。【解決手段】踏板２０は、踏板２０の後部上面が切り欠かれてなる切欠部２１と、２０の上部後端に設けられた第一摺動部２２と、切欠部２１と切欠部２１の前側の踏板２０の上面によって形成された角度が９０°以下であるエッジ部２３と、を備えるとともに、蹴込板３０は、蹴込板３０の下部後端に設けられた第二摺動部３１と、蹴込板３０の下部前部が下方に突出し踏板２０の切欠部２１内に収容可能な突出部３２と、踏板２０のエッジ部２３に当接する突出部３２の前端の少なくとも一部であるとともに鉛直な面である鉛直面部３３と、を備え、踏板２０の第一摺動部２２及び蹴込板３０の第二摺動部３１のうち少なくとも一方が、後方から前方に向かって下方に傾斜した。【選択図】図１
STAIR JUNCTION STRUCTURE AND STAIR CONSTRUCTION METHOD
階段の接合構造及び階段の施工方法
NAKAMOTO SUKEMASA (author) / YAGI HIROSHI (author)
2016-05-23
Patent
Electronic Resource
Japanese
IPC:
E04F
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