发明名称 SAFETY BALANCE DEVICE
摘要 A balance device (10) includes an elongated board of generally rectangular shape (12). The board is a molded construction of glass fibers and plastic. An elongated, longitudinally and downwardly extending track (22) molded integrally with the central part of the bottom of the board fits in an annular groove around a roller (30) on which the board is supported to pivot about a horizontal axis. A removable stop (54) on the board permits the device to be adjusted to restrict the relative movement between the board and a roller to facilitate learning how to balance the board on the roller. The board also includes a timing mechanism (110) and display (100) mounted on the board for tracking and displaying the elapsed time the user remains balanced on the board.
申请公布号 WO03105975(A3) 申请公布日期 2005.01.13
申请号 WO2003US18658 申请日期 2003.06.13
申请人 PIVIT, LLC;ROSBOROUGH, ROBERT, B.;PERRIER, CAROLYN 发明人 ROSBOROUGH, ROBERT, B.;PERRIER, CAROLYN
分类号 A63B22/16;A63B22/00;A63B22/20;A63B23/00;A63B23/08;A63B69/00;A63B71/00;A63B71/06;A63C;B29C33/42;B29C45/00;B29K105/12;B29L7/00;B29L31/52 主分类号 A63B22/16
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