发明名称 Pad for leaf spring
摘要 A curved portion, with a curved cross section, is formed at the recess of the pad. The curved portion has a contact portion which contacts the leaf spring's tension surface, which faces the curved portion. The curved portion's thickness decreases from the contact portion to an end portion of the curved portion, thereby being spaced from the leaf spring's tension surface. In the pad, the height of the curved portion of the recess is set such that contact of the leaf spring's tension surface and the corner portion of the end portion of the curved portion can be avoided when the stroke length of the leaf spring's end portion is at maximum. Thus, the tension surface of the leaf spring is not worn by the corner portion of the end portion of the curved portion. As a result, breakage of the leaf spring caused by wear can be prevented.
申请公布号 US8770558(B2) 申请公布日期 2014.07.08
申请号 US200913000424 申请日期 2009.06.25
申请人 NHK Spring Co., Ltd 发明人 Kanematsu Tsunefumi
分类号 F16F1/18 主分类号 F16F1/18
代理机构 Oliff PLC 代理人 Oliff PLC
主权项 1. A pad for leaf springs, which is disposed between laminated leaf springs and used in vehicle suspensions, the pad being disposed between a first leaf spring and a second leaf spring, the first leaf spring being adjacent to the second leaf spring, comprising: a curved portion which is formed on a surface facing a tension surface of the second leaf spring and projects toward the tension surface, wherein the curved portion has a contact portion which contacts the tension surface of the second leaf spring, the curved portion has a thickness which is reduced from the contact portion to a center portion side of the tension surface, thereby being spaced from the tension surface, and the tension surface of the second leaf spring is a surface which undergoes increasing tension stress as a vehicle load applied to the second leaf spring increases.
地址 Yokohoma-shi JP