发明名称 Roller assembly for a ladder
摘要 An aerial ladder roller assembly to improve the function of the ladder during extension and retraction of sections of a multiple-section aerial ladder. One embodiment has a plurality of aligned apertures for rotatably mounting and a roller that is rotatably mounted in a housing. The housing has a roller pad and an aperture through which a roller extends. The housing is adapted for pivotal mounting at a point approximately central to the length of the axis. A roller is rotatably mounted in the housing on each side of the pivotal mounting point. A pair of rollers is rotatably mounted in the housing on each side of the pivotal mounting point. Also provided is a multiple-section ladder, having at least two nested sections with a housing having at least one roller is rotatably and pivotally mounted extending through an aperture. The slide plate of the second section juxtaposes the roller assembly.
申请公布号 US2005247524(A1) 申请公布日期 2005.11.10
申请号 US20040828769 申请日期 2004.04.21
申请人 WISSLER REID L;LONGENECKER JASON L;SALMI JAMES A 发明人 WISSLER REID L.;LONGENECKER JASON L.;SALMI JAMES A.
分类号 E04C1/00;E06C5/04;F16C29/04;(IPC1-7):E04C1/00 主分类号 E04C1/00
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