JPH05145244A - Electronic apparatus - Google Patents

Abstract

PURPOSE:To miniaturize as a whole and to prevent a direct sliding contact of a main body case and a display in laptop type electronic apparatus such as personal computer and wordprocessor where the main body case having an input means such as keyboard and control circuit is integrated with the display means via a swivel part. CONSTITUTION:A structure is employed with main body side cases 1, 2 having openings to make cables pass through which are provided between display cases 3, 4, a display case having an opening corresponding to the opening formed in the main body side case, and a hollow shaft 8 made up of two members which compensate each other to form a nearly cylindrical cross section when combined and are fitted into the openings of the main body side cases and the display cases.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device, and in particular, a main body case having an input means such as a keyboard and a control circuit, and a display case having a display means are integrally provided through a rotating portion. The present invention relates to laptop electronic devices such as personal computers and word processors.

[0002]

2. Description of the Related Art Conventionally, a rotary portion of a laptop electronic device such as a word processor and a personal computer is formed integrally with a main body case containing a keyboard, a control circuit and the like by bulging a cylindrical portion. When the cylindrical portion is fitted into the corresponding notch formed in the display case having the display such as the above, the both directly rotate through the cylindrical portion and the opening.

That is, in FIG. 7, reference numeral 101 denotes a main body side case incorporating a keyboard, a control circuit and the like, and 102 denotes an LC.
A display device such as D, 103 is a display case, 104 is a printed circuit board that constitutes a control circuit, etc., 105 is a cable for sending a signal to the display device, and 106 is a connector.

A hollow bulging portion 101a protruding in a cylinder is formed on the main body side case 101, an opening portion 101b is defined by the bulging portion 101a, and a connector 106 is inserted into the main body side case 101 through the opening portion 101b. It is guided and connected to the printed circuit board 104. Although not shown,
The display case 103 is composed of, for example, two parts, an upper display case and a lower display case, each of which has a semicircular cutout at a portion corresponding to the bulged portion 101a.
When the component is closed, a circular hole having a diameter substantially equal to the outer diameter of the bulging portion 101a is formed.

[0005]

However, the above-mentioned conventional example has the following drawbacks.

(1) Since the inner diameter of the opening 101b needs to be at least large enough for the connector 106 to pass through, the rotating portion becomes large, which limits the miniaturization of the device.

(2) Since the rotating part and the case are made of the same material, the cases, which are generally made of ABS or HIPS, slide against each other, resulting in poor wear resistance and abrasion powder. Occurs, which adversely affects operability and aesthetics.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an electronic apparatus which eliminates the above-mentioned conventional drawbacks, downsizes a rotating portion to enable downsizing of the apparatus itself, and avoids sliding contact between cases. It is to be.

[0009]

In order to solve the above-mentioned problems, according to the electronic device of the present invention, a main body side case having an opening for allowing a cable to pass through is provided between the main body side case and the main body. When a display case having an opening corresponding to the opening formed in the side case is combined with the display case, a substantially circular cross section is formed and fitted into the openings of the main body side case and the display case. A structure having a hollow shaft made of a member is adopted.

[0010]

In the present invention, since the rotating portion of the electronic device is formed by the hollow shaft which is a separate member, the device can be downsized as a whole. Further, according to the embodiment of the present invention, since the rotating portion is made of a material different from that of the main body, preferably a material having good slidability, wear resistance is improved. Further, according to another embodiment of the present invention, since the joint surface of the hollow shaft is displaced from the center line by a predetermined distance, even if the display unit is rotated backward from the horizontal state, the display upper case and the display unit Since the joint surface with the lower case and the joint surface of the hollow shaft do not come to the same position, there is no catching between the joint surfaces.

[0011]

The present invention will be described in detail below with reference to the embodiments shown in the drawings.

1 to 4 show a first embodiment according to the present invention.

FIG. 1 is a partial sectional view of an electronic device according to the present invention, in which reference numeral 1 is a main body upper case, 2 is a main body lower case, and a printed circuit such as a control circuit is provided in the lower case 2. The substrate 9 and the keyboard 10 are housed, and the upper case 1 is placed on the substrate 9 with the keyboard 10 facing the outside. 3 is an upper case of the display, 4 is a lower case of the display, 5 is a display, 6 is a cable, 7 is a connector, and 8 is a split hollow shaft.

FIG. 2 is an exploded perspective view showing the divided hollow shaft 8. In the present embodiment, the hollow shaft is composed of two parts of the same shape, 8a indicates a semi-cylindrical portion, and one end 8b of the semi-cylindrical portion 8a extends above the surface of the overhanging portion 8g, The other end 8c stops below the surface of the protruding portion 8g. This is a combination of both
This is because the joint surface is displaced with respect to the center line, and the amount of the displacement is such that the joint surface when the display upper case and the display lower case are combined is the center of rotation of the display on the hollow shaft. Is selected so that the joint surface of the display case and the joint surface of the hollow shaft do not come to the same position when rotated backward, for example, by 45 degrees. The protruding portion 8g is provided with a cylindrical small protrusion 8d on one side and a circular through hole 8e on the other side,
Used as positioning or press-fitting means when combining two parts. 8f is a hole for fixing the hollow shaft 8 to a housing or the like with screws or the like.

FIG. 3 is a sectional view taken along the line AA of the electronic device shown in FIG. 1, and a reference numeral 10 is a keyboard.
The indicator upper case 3 and the indicator lower case 4 each have a semi-circular cutout at the center of rotation, and when combined, form a circle that slides with the outer diameter of the hollow shaft 8. On the front side of the drawing, as shown by a chain double-dashed line 1b, an upper case 1 of the main body is projected, and a hollow shaft 8 is fixed to the inside by a screw, for example.

FIG. 4 is an enlarged view showing the vicinity of the hollow shaft 8. Joining surface B between the display upper case 3 and the display lower case 4
And the joint surface C between the semi-cylindrical portions 8a does not come to the same position even when the display portion is rotated from the horizontal state (solid line) to the state of 45 ° backward (two-dot chain line), the joint surface C There is no catch between them. The hollow shaft 8a is formed of a material having good slidability such as polyacetal.

Next, referring to FIG. 1, an example of the assembling procedure will be described. Attach the display 5 to the display upper case 3,
The connector 7 is introduced into the upper body case 1 through the opening 1a provided in the upper body case 1. The opening 1a has a size large enough to allow the connector 7 to pass therethrough. Next, the cable 6 introduced into the upper case 1 of the main body
The two parts are combined so as to pass through the inside of the semi-cylindrical portion 8a to complete the hollow shaft 8.

Next, the hole 8f of the hollow shaft 8 is fixed to the inside of the upper case 1 of the main body with a screw. Then, the display lower case 4 is fixed to the display upper case 3. Lower body case 2
After connecting the connector 7 to the printed circuit board 9 fixed to, the upper case 1 and the lower case of the main body are fixed. still,
The tilt mechanism for holding the display at a predetermined angle is shown in FIG.
Although it is provided on the right side shaft portion in, the description thereof is omitted.

FIG. 5 shows the hollow shaft of the second embodiment. The hollow shaft 11 is formed by engaging the engaging claw 11a and the engaging recess 11b. Reference numeral 11c is a hole for fixing to the upper case of the main body.

FIG. 6 shows a third embodiment. The members forming the hollow shaft 12 are integrally molded by connecting the thin parts 12a, and the hollow shaft 12 is formed by bending the thin parts 12a.

[0021]

As is apparent from the above description, the electronic apparatus of the present invention is formed in the main body side case having the opening for allowing the cable provided between the main body side case and the display case to pass therethrough. From a display case having an opening corresponding to the opening, and a hollow shaft formed of two members which, when combined, form a circular cross section in a complementary manner and are fitted into the opening of the main body side case and the display case. Since it is formed, the whole device can be downsized by using the hollow shaft of the rotating portion as a separate member.

[Brief description of drawings]

FIG. 1 is a partial sectional view showing a first embodiment according to the present invention.

FIG. 2 is a perspective view showing a first embodiment of a hollow shaft according to the present invention.

FIG. 3 is a side sectional view showing a first embodiment according to the present invention.

FIG. 4 is a partially enlarged side view showing the first embodiment according to the present invention.

FIG. 5 is a perspective view showing a second embodiment of the hollow shaft according to the present invention.

FIG. 6 is a perspective view showing a third embodiment of the hollow shaft according to the present invention.

FIG. 7 is a partial cross-sectional view showing a conventional example.

[Explanation of symbols]

 1 Main body upper case 2 Main body lower case 3 Display upper case 4 Display lower case 5 Display 6 Cable 7 Connector 8 Hollow shaft 9 Printed circuit board 10 Keyboard

Claims (3)

[Claims] 1. A combination of a main body side case having an opening for passing a cable provided between the main body side case and a display case having an opening corresponding to the opening formed in the main body side case. And a hollow shaft formed of two members that compliment each other and form a circular cross section, and are fitted in the openings of the main body side case and the display case. 2. The electronic device according to claim 1, wherein the hollow shaft is formed of a material different from that of the main body side case and the display case. 3. The electronic device according to claim 1, wherein the seam of the hollow shaft formed of two members is displaced from the center line when the two are combined.