JP3800728B2 - Electronic device having a closed state holding latch - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electronic device capable of opening and closing a display portion, and more particularly to a portable electronic device having a latch for holding the display portion in a closed state when not in use.
[0002]
[Prior art]
Conventionally, in an electronic device having a display unit in which a liquid crystal display device such as a word processor or a portable computer is housed, the display unit is rotatably attached to the main unit by a hinge, and the display unit is opened when the electronic device is used. When not in use, the display unit can be held closed for dust prevention and storage purposes.
[0003]
2 and 3 show a portable computer which is an electronic device that can open and close a conventional display unit. FIG. 2A is an external perspective view when the display unit is in an open state, and FIG. FIG. 3 is a cross-sectional perspective view of the distal end portion of the display unit when the unit is in the closed state. In the figure, reference numeral 11 denotes a main body portion in which a keyboard 12 is provided on the upper surface, and a main circuit board (not shown) and the like are accommodated therein. It is a display unit in which the device 15 and its drive circuit board (not shown) are accommodated. Further, the display unit 13 has a liquid crystal display device 15 attached to the upper housing 16 and a cover 17 for covering a portion other than the display range on the display surface side. A latch knob 18 for holding the closed state is attached near the tip of the display unit 13 so as to be sandwiched between the upper housing 16 and the cover 17 and is urged in one direction by a tension spring 19. . When the display portion 13 is in the closed state, the claw portion 18a at the tip of the latch knob 18 enters the opening portion 11a provided in the main body portion 11, and is hooked on the opening portion 11a by the tension spring 19. Thereby, the display part 13 can hold | maintain a closed state. When the display unit 13 is opened, if the latch knob 18 is slid in the direction opposite to the urging direction of the tension spring 19, the hook of the claw portion 18a to the opening 11a is released and the display unit 13 can be opened. .
[0004]
[Problems to be solved by the invention]
In the above-described conventional portable computer, the latch knob 18 provided on the display unit 13 is only sandwiched and attached between the upper housing 16 and the cover 17, so that when the display unit 13 is in the closed state, the latch knob 18 is mistakenly attached. When the display unit 13 is opened without being slid, the latch knob 18 remains hooked on the opening 11a, so that a load is applied to the cover 17, and the cover 17, which is a normal resin molded product, bends. The A portion at the tip of the remote display portion may open, causing a problem in appearance. In particular, since recent portable electronic devices tend to be thinner, the phenomenon appears greatly.
[0005]
An object of the present invention is to provide an electronic apparatus having a structure capable of preventing the opening of a display portion constituted by an upper housing and a cover.
[0006]
[Means for Solving the Problems]
In order to solve this problem, according to the present invention, a hook portion for restricting the movement of the display portion of the latch knob for maintaining the closed state of the display portion in the rotation direction is provided on the upper casing of the display portion.
[0007]
Accordingly, when the display unit is in the closed state, when the display unit is opened by mistake without sliding the latch knob, a portable electronic device in which the tip of the display unit does not open is obtained.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The invention described in claim 1 of the present invention
An electronic device body,
A display unit in which a liquid crystal display device or the like is stored;
A hinge portion for pivotally attaching the display portion to the closed and open states on the main body,
The display unit
An upper housing that is an outer surface when closed;
A cover that becomes an inner surface in a closed state and covers the liquid crystal display device;
A claw portion that is hooked on the main body portion to maintain the closed state, and a plate-like protruding portion that is arranged so as to stand substantially vertically on the surface opposite to the knob with respect to the surface including the claw portion and is in contact with the hook portion A latch knob in which the plate-like protrusion portion slides along the hook portion ;
A spring that biases the latch knob in one direction;
An electronic device having a closed state holding latch, which is integrally formed with the upper casing and has a hook portion that restricts movement of the display portion in the rotation direction together with a plate-like protrusion portion of the latch knob.
When opening the display unit, it is possible to prevent the front end of the display unit from being opened when the latch knob is accidentally slid without sliding.
[0009]
Hereinafter, an embodiment of the present invention will be described with reference to FIG.
(Embodiment 1)
FIG. 1 is a cross-sectional perspective view of a front end portion of a display unit of a portable computer which is an electronic apparatus having a closed state holding latch of the present invention. In the figure, reference numeral 1 denotes a main body part in which a main circuit board (not shown) and the like are accommodated, and 2 denotes a display part in which a liquid crystal display device and its drive circuit board (not shown) are accommodated. 3, a liquid crystal display device is attached, and a cover 4 for covering a portion other than the display range is attached to the display surface side. The above configuration is the same as the conventional example. In the vicinity of the tip of the display unit 2, the latch knob 5 for maintaining the closed state is restricted from moving in the rotation direction (direction of arrow B) of the display unit 2 by the hook unit 3 a of the upper housing 3. And is urged in one direction by a tension spring 6. When the display unit 2 is in the closed state, the claw portion 5 a at the tip of the latch knob 5 enters the opening 1 a provided in the main body 1, and is hooked on the opening 1 a by the tension spring 6. Thereby, the display part 2 can hold | maintain a closed state. When the display unit 2 is opened, the latch knob 5 is slid in the direction opposite to the direction in which the tension spring 6 is urged, so that the hook of the claw unit 5a on the opening 1a is released and the display unit 2 can be opened. it can.
[0010]
Here, since the latch knob 5 provided in the display unit 2 is attached with the movement of the display unit 2 in the rotation direction restricted by the hook unit 3a of the upper housing 3, when the display unit 2 is in the closed state, When trying to open the display unit 2 without accidentally sliding the latch knob 5, the latch knob 5 remains caught in the opening 1a. However, since the movement of the latch knob 5 is restricted by the hook 3a, No load is applied, and the upper casing 3 and the cover 4 are separated from each other, and the portion A at the tip of the display unit is not opened. Therefore, there is no problem in appearance.
[0011]
In the above embodiment, the hook portion is integrated with the upper housing. However, the hook portion may be attached to the upper housing with a screw or the like as a separate component.
[0012]
【The invention's effect】
As described above, according to the present invention, since the movement of the latch knob is restricted by the upper casing of the display unit, it is possible to prevent the front end of the display unit from opening when the display unit is forcibly opened when the display unit is closed. The advantageous effect that it can be obtained is obtained.
[Brief description of the drawings]
FIG. 1 is a cross-sectional perspective view of a tip portion of a display unit of a portable computer according to an embodiment of the present invention. FIG. 2 is an external perspective view of a conventional portable computer. Cross-sectional perspective view of the tip of the wire 【Explanation of symbols】
DESCRIPTION OF SYMBOLS 1 Main-body part 2 Display part 3 Upper housing | casing 3a Hook part 4 Cover 5 Latch knob

Claims (1)

An electronic device body,
A display unit in which a liquid crystal display device or the like is stored;
A hinge portion for pivotally attaching the display portion to the closed and open states on the main body,
The display unit
An upper housing that is an outer surface when closed;
A cover that becomes an inner surface in a closed state and covers the liquid crystal display device;
A claw portion that is hooked on the main body portion to maintain the closed state, and a plate-like protruding portion that is arranged so as to stand substantially vertically on the surface opposite to the knob with respect to the surface including the claw portion and is in contact with the hook portion A latch knob in which the plate-like protrusion portion slides along the hook portion ;
A spring that biases the latch knob in one direction;
An electronic device having a closed state holding latch, which is integrally formed with the upper housing and has a hook portion for restricting movement of the display portion in the rotation direction together with a plate-like protrusion portion of the latch knob.

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