Sliding box type pen base computer with LCD and mother board in a base and with battery, power supply, and disk drives in a sliding box

A sliding box type pen base computer consists of a base and a sliding box, wherein the base comprises a mother board and a liquid crystal display supported on two longitudinal side stands with receiving chamber defined therein to receive the sliding box; the sliding box is made to slide in and out of the base, and comprises a battery box, a power supply unit, a floppy diskdrive and a hard diskdrive on the inside surrounded by a vertical peripheral wall and electrically connected to the base.

BACKGROUND OF THE INVENTION 
The present invention relates to pen base computers, and more particularly, 
the present invention relates to a sliding box type pen base computer. 
A variety of portable computers are known and widely used for the advantage 
of mobility. A pen base computer is a newly developed compact computer 
which has a LCD for graphic input through a pen. Because the keyboard 
input device is not provided, the size of a pen base computer is greatly 
reduced. Since a pen base computer is very small (may be so small that it 
can be held in the palm), the master board and the LCD thereof may be 
damaged easily when frequently opening and closing the outer shell 
(opening the outer shell may cause a static electricity to happen, which 
will affect the operation of the electronic elements therein). 
It is therefore the main object of the present invention to provide a 
sliding box type pen base computer which effectively eliminate the 
aforesaid problems.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
Referring to the annexed drawing in detail, the present invention is 
generally comprised of a base 1 and a sliding box 2. The base 1, which is 
made in a flat, rectangular shape, comprises a flat top formed of a mother 
board 11 and a liquid crystal display (LCD) 12 and supported on two 
longitudinal side stands 14, and a connector 17 for electrically 
connecting the sliding box 2,. The side stands 14 of the base 1 define 
therebetween a receiving chamber 13 for inserting the sliding box 2, and 
have inward flanges 15 at the bottom to support the sliding box 2. The 
side stands 14 also have retainer elements for securing the sliding box 2 
in place and electric contacts for connecting the circuits of the 
electronic elements inside the sliding box 2 (these are of the know 
techniques and not within the scope of the present invention). The base 1 
further comprises an IC card 16 at one side for connecting an external 
peripheral equipment. 
Referring to FIG. 1 again, the sliding box 2 is made in a rectangular shape 
having a vertical peripheral wall fitting into the receiving chamber 13. 
The sliding box 2 comprises a connector 22 which is connected to a 
connector 17 inside the base 1, when the sliding box 2 has been inserted 
into the receiving chamber 13, permitting the electric circuit of the 
sliding box 2 and the electric circuit of the base 1 to be electrically 
connected. On the inside of the sliding box 2, there is provided a battery 
box 23, a power supply unit 24, a floppy disk drive 26 and a hard disk 
drive 25 respectively connected by electric wires. Fastening means may be 
provided to prevent the sliding box 2 from completely disconnecting from 
the base 1. 
By means of the aforesaid arrangement, the sliding box 2 can be drawn out 
of the base 1 for conveniently repairing the electronic components therein 
or adding a CO-ROM, TV tuner or any of a variety of electronic elements or 
devices thereto. Because the repair cost of the mother board 11 and the 
LCD 12 is expensive and approximately equal to buying a new one, the base 
1 is made in a fixed structure, namely, the mother board 11 and the LCD 12 
are not detachable.