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A platform for research: civil engineering, architecture and urbanism
COLLECTIVE JOINT, LOWER COLLECTIVE PIPE MANUFACTURING METHOD, COLLECTIVE JOINT MANUFACTURING METHOD
To provide a collective joint which improves drainage performance by ensuring a wide space below swirl vanes in an inclined pipe part when the collective joint is formed by injection molding.SOLUTION: A collective joint 11 comprises a joint body 16 formed in a tubular shape and arranged so that an axis O extends in the vertical direction, and swirl vanes 34 provided on the inner peripheral surface of the joint body. The swirl vanes gradually extend toward a first side in the circumferential direction from the top to the bottom. The joint body has an inclined pipe portion 32 whose diameter gradually decreases from the top to the bottom. At least a portion of the swirl vanes is provided on the inner peripheral surface of the inclined pipe portion. The inner peripheral surface of the inclined pipe portion has a first inner surface 32a inclined so as to gradually approach the axis from the top to the bottom, and a second inner surface 32b provided on the lower part of the swirl vanes and inclined so as to gradually move away from the axis from the top to the bottom.SELECTED DRAWING: Figure 4
【課題】集合継手を射出成形により形成する場合に、傾斜管部内における旋回羽根の下方の空間を広く確保して排水性能を高めた集合継手を提供する。【解決手段】集合継手１１は、管状に形成され、軸線Ｏが上下方向に沿うように配置された継手本体１６と、継手本体の内周面に設けられた旋回羽根３４と、を備え、旋回羽根は、上方から下方に向かうに従い漸次、周方向の第１側に向けて延び、継手本体は、上方から下方に向かうに従い漸次縮径する傾斜管部３２を有し、旋回羽根の少なくとも一部は、傾斜管部の内周面に設けられ、傾斜管部の内周面は、上方から下方に向かうに従い漸次、軸線に接近するように傾斜した第１内面３２ａと、旋回羽根の下方の部分に配置され、上方から下方に向かうに従い漸次、軸線から離間するように傾斜した第２内面３２ｂと、を有する。【選択図】図４
COLLECTIVE JOINT, LOWER COLLECTIVE PIPE MANUFACTURING METHOD, COLLECTIVE JOINT MANUFACTURING METHOD
To provide a collective joint which improves drainage performance by ensuring a wide space below swirl vanes in an inclined pipe part when the collective joint is formed by injection molding.SOLUTION: A collective joint 11 comprises a joint body 16 formed in a tubular shape and arranged so that an axis O extends in the vertical direction, and swirl vanes 34 provided on the inner peripheral surface of the joint body. The swirl vanes gradually extend toward a first side in the circumferential direction from the top to the bottom. The joint body has an inclined pipe portion 32 whose diameter gradually decreases from the top to the bottom. At least a portion of the swirl vanes is provided on the inner peripheral surface of the inclined pipe portion. The inner peripheral surface of the inclined pipe portion has a first inner surface 32a inclined so as to gradually approach the axis from the top to the bottom, and a second inner surface 32b provided on the lower part of the swirl vanes and inclined so as to gradually move away from the axis from the top to the bottom.SELECTED DRAWING: Figure 4
【課題】集合継手を射出成形により形成する場合に、傾斜管部内における旋回羽根の下方の空間を広く確保して排水性能を高めた集合継手を提供する。【解決手段】集合継手１１は、管状に形成され、軸線Ｏが上下方向に沿うように配置された継手本体１６と、継手本体の内周面に設けられた旋回羽根３４と、を備え、旋回羽根は、上方から下方に向かうに従い漸次、周方向の第１側に向けて延び、継手本体は、上方から下方に向かうに従い漸次縮径する傾斜管部３２を有し、旋回羽根の少なくとも一部は、傾斜管部の内周面に設けられ、傾斜管部の内周面は、上方から下方に向かうに従い漸次、軸線に接近するように傾斜した第１内面３２ａと、旋回羽根の下方の部分に配置され、上方から下方に向かうに従い漸次、軸線から離間するように傾斜した第２内面３２ｂと、を有する。【選択図】図４
COLLECTIVE JOINT, LOWER COLLECTIVE PIPE MANUFACTURING METHOD, COLLECTIVE JOINT MANUFACTURING METHOD
集合継手、下部接続管の製造方法、集合継手の製造方法
KIMURA EIJI (author) / FUCHIGAMI SAITA (author) / SAITO SATOSHI (author) / TOKUMARU TAKESHI (author)
2023-08-22
Patent
Electronic Resource
Japanese
COLLECTIVE JOINT, PIPE STRUCTURE AND CONSTRUCTION METHOD FOR COLLECTIVE PIPE
| European Patent Office | 2022