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A platform for research: civil engineering, architecture and urbanism
TIE PLUG, SLEEPER AND SLEEPER MANUFACTURING METHOD
To provide tie plugs that can be arranged only by drilling embedding holes from upper surfaces of sleepers and secure sufficient pulling force, and the sleepers and a manufacturing method of the sleepers.SOLUTION: A tie plug 4 is placed in an embedding hole formed in a sleeper body. The tie plug includes a tubular main body part 15 and a protrusion 16. The protrusion is provided on an outer peripheral surface 18c of the main body part. The protrusion extends outward in the radial direction of the main body part from a first side D1 to a second side D2 along the axial direction of the main body part.SELECTED DRAWING: Figure 2
【課題】マクラギの上面から埋込み孔を穿孔するのみで配置でき、かつ、引抜き力を十分に確保できる埋込み栓、マクラギ及びマクラギの製造方法を提供する。【解決手段】埋込み栓４は、マクラギ本体に形成された埋込み孔に配置される。埋込み栓は、筒状の本体部１５と、突起１６と、を備えている。突起は、本体部の外周面１８ｃに設けられている。突起は、本体部の軸方向に沿って第１側Ｄ１から第２側Ｄ２に向かうに従い、本体部の径方向の外側に向けて延びている。【選択図】図２
TIE PLUG, SLEEPER AND SLEEPER MANUFACTURING METHOD
To provide tie plugs that can be arranged only by drilling embedding holes from upper surfaces of sleepers and secure sufficient pulling force, and the sleepers and a manufacturing method of the sleepers.SOLUTION: A tie plug 4 is placed in an embedding hole formed in a sleeper body. The tie plug includes a tubular main body part 15 and a protrusion 16. The protrusion is provided on an outer peripheral surface 18c of the main body part. The protrusion extends outward in the radial direction of the main body part from a first side D1 to a second side D2 along the axial direction of the main body part.SELECTED DRAWING: Figure 2
【課題】マクラギの上面から埋込み孔を穿孔するのみで配置でき、かつ、引抜き力を十分に確保できる埋込み栓、マクラギ及びマクラギの製造方法を提供する。【解決手段】埋込み栓４は、マクラギ本体に形成された埋込み孔に配置される。埋込み栓は、筒状の本体部１５と、突起１６と、を備えている。突起は、本体部の外周面１８ｃに設けられている。突起は、本体部の軸方向に沿って第１側Ｄ１から第２側Ｄ２に向かうに従い、本体部の径方向の外側に向けて延びている。【選択図】図２
TIE PLUG, SLEEPER AND SLEEPER MANUFACTURING METHOD
埋込み栓、マクラギ及びマクラギの製造方法
SAITO YASUHIRO (author)
2021-03-18
Patent
Electronic Resource
Japanese
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
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