United States Patent  til] Patent Number: 5,057,676
Komaki  Date of Patent: Oct. 15, 1991
 PORTABLE ELECTRONIC APPARATUS
 Inventor: Shigeki Komaki, Nara, Japan
 Assignee: Sharp Kabushiki Kaisha, Osaka, Japan
 Appl. No.: 559,288
 Filed: Jul. 30, 1990
 Foreign Application Priority Data
Aug. 8, 1989 [JP] Japan 1-93137[U]
 Int. CI.5 G06F 15/20
 U.S. CI 235/375; 235/432;
 Field of Search 235/375, 432; 361/398;
 References Cited
U.S. PATENT DOCUMENTS
4,901,261 2/1990 Fuhs 364/708
4,918,632 4/1990 York 364/708
4,939,514 7/1990 Miyazaki 364/708
FOREIGN PATENT DOCUMENTS 60-10348 1/1985 Japan .
60-39166 3/1985 Japan .
Primary Examiner—Harold Pitts
Attorney, Agent, or Firm—David G. Conlin
A portable electronic apparatus includes an electronic main unit having a front surface, a rear surface, side surfaces, and a first electrical connector. The electronic main unit is served to perform arithmetic operation. The apparatus further includes a cover member provided on one of the side surfaces of the electronic main unit, for openably covering the front surface of the electronic main unit. The apparatus also includes an electronic sub-unit capable of being coupled with the electronic main unit. This electronic sub-unit has a support portion to be located behind the electronic main unit to support the rear surface, a handle portion projected from side of the electronic sub-unit for supporting the cover member when the cover member is opened, a second electrical connector capable of being connected to the first electrical connector, and an auxiliary electrical device capable of being cooperated with the electronic main unit.
13 Claims, 6 Drawing Sheets