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STRUCTURE OF SCREW SPIKE FOR CROSSTIE
PROBLEM TO BE SOLVED: To provide a structure of a screw spike for a crosstie, which enables completion of work in a period of scheduled work time by shortening a work time per screw spike, required for the work for fastening/loosening the screw spike for the crosstie.SOLUTION: In a structure of a screw spike 1 for a crosstie, a double-thread screw 4 is formed on an outer peripheral surface, and preferably, a pitch between the double-thread screws 4 is set to be about 24 mm. Thus, work for being fastened to/loosened from the crosstie is reduced.
【課題】まくら木用ねじくぎの締付・緩め作業に対する１本あたりの作業時間を短縮化して、予定された作業時間での作業を終了することができるまくら木用ねじくぎの構造を提供する。【解決手段】まくら木用ねじくぎ１の構造において、外周面に二条ねじ４が形成され、好ましくは二条ねじ４間のピッチが約２４ｍｍとし、まくら木に対する締付と緩め作業の短縮化を図る。【選択図】図１
STRUCTURE OF SCREW SPIKE FOR CROSSTIE
PROBLEM TO BE SOLVED: To provide a structure of a screw spike for a crosstie, which enables completion of work in a period of scheduled work time by shortening a work time per screw spike, required for the work for fastening/loosening the screw spike for the crosstie.SOLUTION: In a structure of a screw spike 1 for a crosstie, a double-thread screw 4 is formed on an outer peripheral surface, and preferably, a pitch between the double-thread screws 4 is set to be about 24 mm. Thus, work for being fastened to/loosened from the crosstie is reduced.
【課題】まくら木用ねじくぎの締付・緩め作業に対する１本あたりの作業時間を短縮化して、予定された作業時間での作業を終了することができるまくら木用ねじくぎの構造を提供する。【解決手段】まくら木用ねじくぎ１の構造において、外周面に二条ねじ４が形成され、好ましくは二条ねじ４間のピッチが約２４ｍｍとし、まくら木に対する締付と緩め作業の短縮化を図る。【選択図】図１
STRUCTURE OF SCREW SPIKE FOR CROSSTIE
まくら木用ねじくぎの構造
SUZUKI NORIKAZU (author)
2015-09-07
Patent
Electronic Resource
Japanese
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
Engineering Index Backfile | 1964