公开(公告)号：US4119310A

公开(公告)日：1978-10-10

申请号：US790522

申请日：1977-04-25

申请人： Bert M. Trubody

发明人： Bert M. Trubody

IPC分类号： A63G1/14 ,  A63G1/12

CPC分类号： A63G1/14

摘要： A merry-go-round or playground turntable comprises a rotatable platform, a fixed shaft segment coaxially supporting the platform, a rotatable shaft segment, a ratchet drive coaxially coupling the rotatable shaft segment to the fixed shaft segment, and a hand wheel mounted to the rotatable shaft segment. The turntable is operable to rotate in only one direction is response to torque applied to the hand wheel by at least one operator, typically a young or handicapped child, supported on the platform. The ratchet drive permits the operator to turn the platform while continuously grasping the hand wheel.

摘要翻译： 旋转平台或游乐场转盘包括可旋转平台，同轴支撑平台的固定轴段，可旋转轴段，将可旋转轴段同轴联接到固定轴段的棘轮传动装置，以及安装到 可旋转轴段。 旋转台可操作以仅在一个方向上旋转，这是由支撑在平台上的至少一个操作员（通常是年轻或残疾儿童）施加到手轮的扭矩的响应。 棘轮驱动器允许操作者在持续握住手轮的同时转动平台。

公开(公告)号：USD255816S

公开(公告)日：1980-07-08

申请号：US879011

申请日：1978-02-17

申请人： Bert M. Trubody ,  William W. White ,  David R. Vonasek

设计人： Bert M. Trubody ,  William W. White ,  David R. Vonasek

公开(公告)号：US4154442A

公开(公告)日：1979-05-15

申请号：US879018

申请日：1978-02-17

申请人： Bert M. Trubody ,  William W. White ,  David R. Vonasek

发明人： Bert M. Trubody ,  William W. White ,  David R. Vonasek

IPC分类号： A63B71/00 ,  A63B71/06 ,  A63B61/00

CPC分类号： A63B71/0697 ,  A63B71/0045

摘要： A device for controlling the amount of time players occupy each of a plurality of tennis courts, while showing waiting players how long they must wait and which of the waiting players is to get the next available court. A central board has two dials for each court, one dial being set for the time when play is begun and the other dial being set for the time that the court will become available. The board has a sloping rack into which a tennis racket is placed by a member of each group waiting to play. Gravity tends to draw the sequentially placed rackets downward with the racket occupying the most downward position signifying the identity of the person who is to get the next available court. By inspection of the dials, the waiting players can tell when each of the courts is to become available.

摘要翻译： 用于控制玩家占用多个网球场中的每一个的时间量的装置，同时显示等待的玩家必须等待多久以及哪些等待的玩家获得下一个可用的法院。 中央委员会为每个法庭设有两个拨号盘，一个拨号盘设置为开始播放的时间，另一个拨盘设置为法庭可用时间。 该板有一个倾斜的架子，每个组的一个成员放置一个网球拍等待玩。 重力倾向于将顺序放置的球拍向下拉，球拍占据最向下的位置，表示要获得下一个可用法院的人的身份。 通过检查表盘，等待的玩家可以知道每个法庭何时可以使用。