公开(公告)号：US06843347B2

公开(公告)日：2005-01-18

申请号：US10338489

申请日：2003-01-08

申请人： Thomas Lamberson ,  Michael R. Webb ,  Richard C. Kochawski ,  Gene Gladkov ,  Robert D. Heckel, II

发明人： Thomas Lamberson ,  Michael R. Webb ,  Richard C. Kochawski ,  Gene Gladkov ,  Robert D. Heckel, II

IPC分类号： E06C1/00 ,  E06C1/24 ,  A47C13/00 ,  A47C7/00 ,  E04F1/00

CPC分类号： A47C12/00 ,  E06C1/005 ,  E06C1/24

摘要： A multipurpose step stool includes two substantially parallel, congruent, triangular side support members. The triangular side support members each include first, second, and third resting edges adapted to contact a supporting surface such as a floor. The first treads are oriented parallel to the first resting edges, the second treads are oriented parallel to the second resting edges, and the platform is oriented parallel to the third resting edges. The angle between the first and second resting edges, and the positioning of the first and second treads are selected such that, when the first resting edges are placed on a support surface, a first orientation of the step stool is provided with the first and second treads in combination forming a first rise over run ratio; when the second resting edges are placed on a support surface, a second orientation of the step stool is provided with the second and first treads in combination forming a second rise over run ratio; and when the third resting edges are placed on a support surface, a third orientation of the step stool is provided with the platform elevated above the supporting surface.

摘要翻译： 多用途步骤凳包括两个基本上平行的，全等的三角形侧支撑构件。 三角形侧支撑构件各自包括适于接触诸如地板的支撑表面的第一，第二和第三搁置边缘。 第一踏板平行于第一搁置边缘定向，第二踏面平行于第二搁置边缘定向，平台平行于第三搁置边缘定向。 选择第一和第二搁置边缘之间的角度以及第一和第二胎面的定位，使得当第一搁置边缘被放置在支撑表面上时，台阶凳的第一取向设置有第一和第二胎面 组合胎面形成第一次上升超过运行比; 当第二搁置边缘被放置在支撑表面上时，台阶凳的第二取向被提供有组合的第二和第一胎面，形成第二上升运行比; 并且当第三搁置边缘被放置在支撑表面上时，台阶凳的第三取向设置有在支撑表面上方升高的平台。