Title:
【考案の名称】トラックボール
Document Type and Number:
Japanese Patent JPH0620187
Kind Code:
Y2
Abstract:
A trackball device comprising a housing having a circular opening formed in a top wall thereof, a ball received in the housing and partially projecting through the circular opening, a pair of rotatable members arranged orthogonally to each other and rotatable in accordance with rotation of the ball, detectors capable of detecting the amounts of rotation of the respective rotatable members, and elastic members arranged in the vicinity of the edge of the circular opening and capable of suppressing vibration of the ball.
Inventors:
Tsuyoshi Aoki
Application Number:
JP6036989U
Publication Date:
May 25, 1994
Filing Date:
May 26, 1989
Export Citation:
Assignee:
ALPS ELECTRIC CO.,LTD.
International Classes:
G06F3/0354; G06K11/06; (IPC1-7): G06F3/033
Domestic Patent References:
| JP63175241U | ||||
| JP62147034U |
Attorney, Agent or Firm:
Kenjiro Take
Next Patent: 無線中継装置