Title:
TRACK BALL POSITION CONTROLLER
Document Type and Number:
Japanese Patent JPS58149535
Kind Code:
A
Abstract:
A trackball device includes a housing containing a plurality of rotatable supports and a ball seated thereon with a portion of the ball projecting through an opening in the housing for manual rotation by a user. First and second ones of the supports comprise shafts respectively rotatable about orthogonally related axes, the shafts being rotatably mounted in bearings receivable in slots in the housing accommodating slight movement thereof in directions perpendicular to the plane of the ball opening. Bias springs resiliently urge the bearings, and thereby the shafts and ball toward the ball opening. The device may also include illumination means and a light-transmitting ball.
Inventors:
SHINGU ENU KIMU
Application Number:
JP1902783A
Publication Date:
September 05, 1983
Filing Date:
February 09, 1983
Export Citation:
Assignee:
WAIKO CORP
International Classes:
G06F3/0354; (IPC1-7): G06F3/033
Domestic Patent References:
| JP54060429B | ||||
| JPS4873758A | 1973-10-04 |
Attorney, Agent or Firm:
Hideto Asamura