PROBLEM TO BE SOLVED: To provide a high-strength wheel spoke that prevents breaking of a joining portion between a shank part and an elbow part of the spoke, which is caused by frictional damage.SOLUTION: A high-strength wheel spoke comprises a shank, a screw portion at one end of the shank, an elbow part at the other end of the shank, a neck part, a head, and diameter-increase portions of the neck part and the elbow part. In the high-strength wheel spoke, a shank diameter-increase portion is provided in a joining portion between the shank and the elbow part, and diameter-reduction connection portions are provided between the neck part diameter-increase portion and the head and between the shank diameter-increase portion and the shank, respectively. In the present wheel spoke, sufficiently considering a practical problem that, in the process of use, the joining portion between the shank and the elbow part suffers most considerable frictional damage and tends to break, the diameter-increase portion is installed at the joining portion, and the installation of the diameter-increase portion particularly improves the phenomenon of tending to break, which is caused by the most considerable frictional damage of the joining portion, so that the spoke of this standard is more remarkably superior in tensile strength than general hard-steel spokes.SELECTED DRAWING: Figure 1
【課題】摩擦損傷による、スポークの胴部とエルボ部との結合部の破断を防ぐ高強度車輪スポークの提供【解決手段】胴、胴の一端のネジ部、胴の他端のエルボ部、首部および頭、首部およびエルボ部の直径増大部を備えた高強度車輪スポークであって、前記胴と前記エルボ部との結合部に胴直径増大部が設けられており、首部直径増大部と頭との間、前記胴直径増大部と胴との間にそれぞれ縮径つなぎ部が設けられている高強度車輪スポーク。本車輪スポークは、使用過程において胴とエルボ部との結合部の摩擦損傷が最も顕著であり破断しやすいという実際的な問題を十分に考慮して、該結合部に直径増大部を設置し、該直径増大部の設置が、該結合部の摩擦損傷が最も顕著であるためにもたらされる、破断しやすい現象を著しく改善しており、同規格のスポークは、一般的な硬質鋼スポークよりも引張強度が著しく優れている。【選択図】図1
HIGH-STRENGTH WHEEL SPOKE
高強度車輪スポーク
2018-03-22
Patent
Elektronische Ressource
Japanisch
IPC: | B60B VEHICLE WHEELS , Räder für Fahrzeuge |