公开(公告)号：US06870527B2

公开(公告)日：2005-03-22

申请号：US10352049

申请日：2003-01-28

Applicant: Ching Ching Yu

Inventor： Ching Ching Yu

IPC: G06F3/033 ,  G09G5/08

CPC classification number: G06F3/03543

Abstract: A pointing device includes a casing in which a track ball is rotatably received and physically engaging two substantially perpendicular rotatable axles and a biasing structure forcibly biasing the track ball toward the axles. The biasing structure includes a frame rotatably supported inside the casing by pivots and a retainer mounted to the frame. The retainer includes a plurality of pawls spaced along a circumference to form a space for rotatably receiving and retaining a sphere. A biasing element is arranged between the casing and the frame to bias the sphere to forcibly engage the track ball thereby forcing the track ball against the rotatable axles.

Abstract translation: 指示装置包括壳体，其中轨道球可旋转地接收并且物理地接合两个基本上垂直的可旋转轴和偏置结构，以将轨道球强制地偏向轴。 偏压结构包括通过枢轴可旋转地支撑在壳体内的框架和安装到框架的保持架。 保持器包括沿圆周间隔开的多个棘爪，以形成用于可旋转地接收和保持球体的空间。 偏置元件布置在壳体和框架之间以偏置球体以强制地接合轨道球，从而迫使履带球抵靠可旋转轴。