JPH06111555A - Opening / closing lid mechanism of the case - Google Patents

Abstract

(57) [Summary] (Modified) [Configuration] The front enclosure plate 11 and the opening / closing lid 12 attached to the front surface of the housing are connected by the left and right shafts 13 and 14. The shaft 13 is provided with a spring 15
5, the opening / closing lid 12 is constantly pressed in the closing direction and the front direction. Further, the front enclosure plate 11 and the opening / closing lid 12 are provided with projections 22 and 23 and recesses 24 and 25, which are held by meshing with each other. Finger hook portion 26 provided on the opening / closing lid 12
By applying a force in the right lateral direction to, the robot moves laterally, disengages, and opens forward. When closing, the lid 12 is pressed and can be easily held by the cam portions 28 and 29, so that the lid 12 can be opened and closed easily by a simple operation. [Effect] It can be opened and closed by a simple operation, the close contact of the opening and closing lid is high, and the device can be used in a dust environment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening / closing lid and a mechanism for preventing exposure of an electronic device housed in a housing and attaching the device to a device for dust protection.

[0002]

2. Description of the Related Art As shown in FIG. 3, a desk-top electronic device has a housing 1 in which electronic equipment such as a magnetic storage device 3 is built in, and an operating portion is exposed to the outside. Therefore, use in a dusty environment has been adversely affected because it adversely affects the life of electronic devices.

As a countermeasure against using the above problem as a background, an opening / closing lid mechanism utilizing a separate mechanism component 5 as shown in FIG. However, in the above method, since the mechanical component 5 itself is held, the holding strength is weak and there is a problem in the durability of the product. Further, when opening and closing, a moving space 6 in the front-rear direction is required, so that the front enclosure plate 7 and the opening / closing lid 8 cannot be in close contact with each other, and dust intrusion cannot be avoided.

[0004]

In the prior art, ingress of dust is unavoidable and may adversely affect electronic equipment. Also, the use of a separate part as the opening / closing lid holding means is a drawback that goes against the reduction of the number of parts. It is an object of the present invention to provide an opening / closing lid mechanism that releases dust and improves durability with a small number of parts.

[0005]

In order to achieve the above-mentioned object, the opening / closing lid mechanism of the present invention has an uneven portion on the front cover plate and the opening / closing lid side, and is provided with holding means by meshing with each other. is there.

The opening / closing lid mechanism of the present invention uses a spring to
A holding means that is constantly pressed in the holding direction is attached.

Further, the opening / closing lid mechanism of the present invention is one in which the opening / closing lid is provided with a lateral moving means.

The opening / closing lid mechanism of the present invention is provided with a cam mechanism on the rotating portion of the front cover plate and the opening / closing lid.

[0009]

According to the present invention, the opening / closing lid attached to the front shroud is always brought into close contact by applying a force in the holding direction by the repulsive force of the spring attached to the shaft, and repels the spring when opening.
The holding is released by applying the lateral movement force, and the reaction force of the torsional rotation of the spring is used to open the opening / closing lid forward around the shaft. Further, by providing the cam mechanism on one of the rotating portions, the operating force at the time of closing can be reduced, and the impact and wear at the time of holding the opening / closing lid can be prevented.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1a shows the external appearance of the opening / closing lid mechanism attached to the electronic device with the opening / closing lid closed, and FIG. 1b shows the component structure. The opening / closing lid mechanism of the present invention includes a front enclosure plate 11 attached to the front surface of a housing 10 of an electronic device, opening / closing lids 12 and shafts 13 and 14 for connecting 11 and 12.
The opening / closing lid 12 is formed of a spring 15, and the opening / closing lid 12 is provided with a see-through window 27 through which the state of the electronic device 3 can be visually checked in the closed state. The connecting mechanism between the front cover plate 11 and the opening / closing lid 12 will be described with reference to FIG. 1b. In the figure, the left connection is
The opening / closing lid left side surface 18 is placed between the front shroud 11 and the left shaft fixing holes 16 and 17, and the rotation hole 19 is fixed therethrough. Right side connection is 11 right side shaft fixing holes 20
14 is press-fitted and fixed, and is inserted into the rotation hole of 21 to be connected.
At this time, the holes 19 and 21 are in a loose fitting state. Then, a spring 15 is inserted into the shaft 13 to bring it into a compressed state, whereby the opening / closing lid 12 is always pressed in the left direction to be in a closed state. Further, the spring 15 is always repelled in the opening direction by the reaction force in the rotating direction.

FIG. 2 shows the details of the connecting portion and the details of the holding portion of the opening / closing lid mechanism in a holding state, a lateral movement state and an open state, respectively. In the holding state, the connecting portion (cross section a
In (a), since the spring 15 is attached in a compressed state, the opening / closing lid 12 is always pressed in the left direction, and the concave portions 24, 25 of the opening / closing lid 12 mesh with the convex portions 22, 23 in the cross section AA. To maintain the holding state. Next, in the lateral movement state, by applying a force to the finger hook portion 26 provided on the opening / closing lid 12 in the direction of the reaction force of the spring, that is, to the right, the opening / closing lid 12 in the cross section bb is guided to the right by the shafts 13 and 14. When the cross section BB is moved, the engagement and depression of the holding portion in the cross section BB is released. Further section c
At c, the shaft 13 is rotated by the repulsive force of the spring 15.
It will be in a state of falling forward and rotating around the axis. At this time, since the cams 28 and 29 are in contact with each other, the cam 28 stops while holding a slight gap L in the cross section CC. Therefore, when the opening / closing lid 12 is closed, it does not come into contact with the convex portions 22 and 23.

[0013]

As described above, according to the present invention, the opening and closing can be easily performed by a simple operation, and the opening and closing lid has a high adhesiveness to prevent dust from entering. Further, it is possible to make the opening / closing lid holding force firm, which is effective for the durability of the device.

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of an opening / closing lid mechanism of a housing of the present invention.

FIG. 2 is an explanatory view showing the operation of the opening / closing lid mechanism of the housing of the present invention.

FIG. 3 is a perspective view showing a general desk-top electronic device.

FIG. 4 is a perspective view and a sectional view showing a conventional opening / closing lid mechanism.

[Explanation of symbols]

11 ... Front enclosure plate, 12 ... Opening / closing lid, 13, 14 ... Connection shaft, 15 ... Spring, 22, 23 ... Convex part, 24, 25 ... Recessed part, 26 ... Finger hook part, 27 ... Through window, 28, 29 … Cam section.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yutaka Masuda 5-2-1, Omika-cho, Hitachi-shi, Ibaraki Hitachi Process Computer Engineering Co., Ltd. (72) Inventor Keigo Kawami 5-chome, Omika-cho, Hitachi-shi, Ibaraki 2-1 No. 1 within Hiritsu Process Computer Engineering Co., Ltd. (72) Inventor Fumihiko Nemoto 5-2-1 Omika-cho, Hitachi City, Ibaraki Prefecture Within Hiritsu Process Computer Engineering Co., Ltd. (72) Hiroshi Watanabe Hitachi City, Ibaraki Prefecture 5-2-1 Omika-cho, Hitachi Ltd. Omika factory

Claims (7)

[Claims] 1. An electronic device comprising a front enclosure plate provided on a front surface of a housing and an opening / closing lid attached to the enclosure plate. The enclosure plate and the opening / closing lid are connected by two shafts, and one shaft is connected to one shaft. It has a connecting means to which a spring is attached and which is constantly pressed toward the holding side, and a holding means by meshing of concave and convex shapes, and the opening / closing lid has a lateral moving means for holding and releasing the holding and a rotating means for opening. An opening / closing lid mechanism for the housing. 2. The opening / closing lid mechanism for a housing according to claim 1, wherein the opening / closing lid protects dust of an electronic device exposed on a front surface of the housing of the electronic device. 3. An opening / closing lid mechanism for a housing, which has a see-through window for allowing the movable state of an electronic device to be visually observed when the opening / closing lid according to claim 2 is closed. 4. An opening / closing mechanism for a housing according to claim 1, wherein the connecting means is tilted forward with respect to a shaft. 5. The opening / closing lid mechanism for a casing according to claim 1, wherein the lateral movement means is provided with a finger hook portion on the opening / closing lid. 6. The opening / closing lid mechanism for a casing according to claim 1, wherein the spring can be pressed in a rotational direction when opening. 7. The opening / closing lid mechanism for a housing according to claim 1, wherein the rotating means is provided with a cam mechanism on one rotating portion,
An opening / closing lid mechanism for a housing, which absorbs a shock applied to an uneven portion during holding.