JP2854252B2 - Removable opening and closing cover - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is provided in an electronic device,
The present invention relates to a detachable opening / closing cover that can be attached / detached as necessary, and more particularly to a detachable opening / closing cover for an electronic device that requires a thinner cover to be lighter or the like.

[0002]

2. Description of the Related Art In recent years, electronic devices such as video tape recorders, televisions, and personal computers have been equipped with various functions, and accordingly, the arrangement of switches and connectors has increased rapidly. However, exposing switches and connectors on the surface of the electronic device is not preferable in terms of dustproofing and waterproofing. In many cases, it is preferable that the switches and connectors are not exposed in design. Therefore, in many electronic devices, switches and connectors are arranged inside the opening and closing cover so that the opening and closing cover can be opened and operated only when necessary. In addition, an opening / closing cover is required when carrying, such as a portable personal computer or a consumer video camera, but the opening / closing cover itself may be an obstacle when connected to other electronic devices via a plurality of cables. Some have an openable cover.

The above-mentioned opening / closing cover has a structure that simplifies the structure and supports only both ends in order to easily attach / detach when it needs to be attached / detached.

[0004]

However, with the demand for weight reduction of electronic equipment and reduction of material cost, the thickness of the opening / closing cover has been reduced, and as a result, the opening / closing cover has been bent or thermally deformed. The problem of causing a problem occurred.

In order to avoid such deformation, a structure for firmly supporting the opening / closing cover is conceivable. However, there is a new problem that the opening / closing cover cannot be easily attached or detached.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is possible to prevent deformation even when the opening / closing cover is made thinner, and to easily attach the electronic device to the main body. An object of the present invention is to provide a detachable opening / closing cover that can be detached.

[0007]

In order to achieve the above object, the invention according to the first aspect of the present invention is directed to an electronic apparatus main body which opens and closes by rotating about an axis of rotation with respect to a main body of the electronic apparatus. A detachable opening / closing cover detachably provided with respect to the electronic device main body, a thin tongue having a substantially semicircular cross section and a predetermined thickness at least at one end thereof, which is provided on an axis of the rotating shaft on the electronic device main body side. A grooved bearing having a portion, an auxiliary shaft provided on the detachable opening / closing cover side, which can be inserted into the grooved bearing and rotatable in the groove, and near the auxiliary shaft on the detachable opening / closing cover. A claw portion that is slidably engaged with the outer periphery of the thin tongue in the axial rotation direction when the detachable opening / closing cover is closed by a predetermined angle or more. Therefore, the horizontal space formed by the claw portion and the auxiliary shaft is widened. Engagement between the tight strip portion and the thin tongue becomes separable state, the auxiliary shaft, characterized in that it allows disengagement from the groove line bearing.

According to a second aspect of the present invention, there is provided the detachable opening / closing cover according to the first aspect, wherein the groove bearing provided on the electronic device main body side and an auxiliary provided on the detachable opening / closing cover side. The shaft and the claw portion are provided in a substantially central portion of the electronic device main body and the detachable opening / closing cover.

Further, the invention according to claim 3 is the invention according to claim 1.
Alternatively, in the detachable opening / closing cover according to claim 2, the closing operation angle of the detachable opening / closing cover in which the engagement between the claw portion and the thin tongue portion can be separated is 45 ° or more. .

[0010]

According to the first aspect of the present invention, when the detachable opening / closing cover is mounted, the groove is provided on the axis of the rotation axis of the detachable opening / closing cover on the electronic device main body side, and has a substantially semicircular cross section. An auxiliary shaft provided on the detachable opening / closing cover side is inserted into the ridge bearing, and a claw provided on the detachable opening / closing cover near the auxiliary shaft is at least one end of the groove bearing. Is slidably engaged with the outer periphery of the thin tongue portion having a predetermined thickness provided in the axial direction. Therefore, the detachable opening / closing cover is supported by both ends of the rotating shaft and the groove bearing, and the supporting strength is increased, so that the deformation of the detachable opening / closing cover can be prevented.
On the other hand, when the detachable opening / closing cover is closed by a predetermined angle or more, the horizontal space formed by the claw portion and the auxiliary shaft is wider than the thickness of the thin tongue portion, and the claw portion and the thin tongue portion Since the engagement is separable and the auxiliary shaft can be disengaged from the groove bearing, the detachable openable cover can be easily separated from the electronic device body.

According to the second aspect of the present invention, one groove bearing is provided substantially at the center of the electronic device body, and one auxiliary shaft and claw are provided substantially at the center of the detachable opening / closing cover. Since it is provided, the detachable opening / closing cover can be satisfactorily held and prevented from being deformed, and the attaching / detaching operation of the detachable opening / closing cover can be easily performed.

According to the third aspect of the present invention, since the closing operation angle of the detachable opening / closing cover at which the engagement between the claw portion and the thin tongue portion can be separated is 45 ° or more, carelessness is provided. The detachable opening / closing cover can be prevented from falling off.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an electronic device, for example, a laptop personal computer (hereinafter simply referred to as a personal computer).
Partial perspective view of 10 main body cabinet 12 (rear part)
It is. The personal computer 1 is on the back side of the main cabinet 12.
The storage unit 12a stores a connector for connecting an external device such as a printer and an external hard disk drive (not shown) and switches for setting the device. Then, for the purpose of protecting the connectors and switches, improving the design of the personal computer 10, and the like, the storage section 12
is provided with a thin cover 14 for covering a. The cover 14 is openable and closable so that the connectors and switches can be exposed only when the connectors and switches are used, and is detachable so that the user can remove the covers and switches as necessary.

FIG. 2 is an enlarged perspective view of the removable cover 14 (hereinafter simply referred to as cover 14). The cover 1
4 is a convex rotary shaft 1 provided at both ends on the rotary axis A.
The cover 4a can be freely opened and closed by engaging the recesses 4a with concave bearings 12b provided on inner walls at both ends of the storage portion 12a shown in FIG.

A characteristic feature of the present invention is that the electronic device is provided only when the opening / closing cover has an auxiliary shaft on the axis of rotation in addition to the rotating shafts at both ends, and the opening / closing cover closes (opens) to a predetermined angle. It is about to be detachable from the main body.

Hereinafter, the shape and operation of the cover 14 will be described in detail with reference to FIGS. A groove bearing 16 having a substantially semicircular cross section on a rotation axis A substantially at the center of the storage portion 12a on the main body cabinet 12 side and having a thin tongue portion 16a having a predetermined thickness at least at one end thereof is provided. Is formed. On the other hand, on the cover 14 side, a claw that is slidable in the axial rotation direction on the outer peripheral surface of the thin tongue portion 16a of the groove bearing 16 when the cover 14 is mounted on the main body cabinet 12 and opened and closed. A ridge 18 is formed. Further, an auxiliary shaft 20 is provided inside the claw portion 18 at a position (on the rotation axis A) that can be inserted into the groove bearing 16. That is, when the main body cabinet 12 and the cover 14 are engaged, the thin tongue portion 16a enters between the auxiliary shaft 20 and the claw portion 18. Therefore, the cover 14 includes the auxiliary shaft 20 and the claw portions 18 in addition to the rotating shafts 14a at both ends.
Are supported at a total of three points by engaging with the grooved bearings 16, so that stable support of the cover 14 can be realized, and the rigidity of the thin cover 14 is improved by providing the claw portions 18 and the like. Deflection and deformation can be prevented. When the cover 14 is mounted on the main body cabinet 12, the cover 14 is slightly bent outward as shown by a two-dot chain line in FIG. The engagement can be performed by engaging the auxiliary shaft 20, the claw portion 18, and the groove bearing 16 with each other.

When the cover 14 is attached to the main body cabinet 12 and the opening and closing operation is performed as described above, FIG.
As shown in (a) and (b), the horizontal space P formed by the end m of the auxiliary shaft 20 and the end n of the claw portion 18 changes. That is, the horizontal interval P formed by the end m and the end n is minimum when the cover 14 is fully opened, and is maximum when fully closed. In the present embodiment, the angle is the angle at which the cover 14 is consciously attached / detached, and in consideration of the easiness of the work at the time of attachment / detachment, when the closing operation of the cover 14 exceeds 45 ° from the horizontal position, the horizontal interval P is increased. The thickness is set to be larger than the horizontal thickness Q of the thin tongue portion 16a. Therefore, when the closing operation is less than 45 ° from the horizontal position as shown in FIG.
As a result, the groove bearing 16 is sandwiched between the auxiliary shaft 20 and the claw portion 18, the engagement between the two is not released, and the cover 14 is held well. On the other hand, FIG.
When the closing operation is 45 ° or more from the horizontal position as shown in (b), the relationship of P2> Q is satisfied, and the auxiliary shaft 20 and the claw portion 18 are moved vertically upward to thereby provide the groove bearing. 16 can be easily separated.

Since the cover 14 is normally used in a fully closed state or a fully opened state, the angle of the cover 14 becomes 45 ° or more only when a conscious closing operation (opening operation) is performed. Is not opened, and the cover 14 can be prevented from falling off.

As shown in FIG. 1, the auxiliary shaft 20, the claw portion 18 are provided at the center of the cover 14, and the groove bearing 16 is provided at the corresponding center of the main body cabinet 12, so that the auxiliary shaft can be inserted. Of the cover 14 can be easily performed, the work at the time of mounting the cover 14 can be easily performed, and the cover 14 can be well-balanced and stiffened.

In this embodiment, the removable cover of a laptop personal computer has been described as an example. However, other electronic devices such as a video camera and a television monitor which require removal of the cover are required. It is possible to adapt and achieve the same effect. In particular, it is effective for a cover having a long length in the opening / closing axis direction and a small thickness.

Further, in this embodiment, an example has been described in which a pair of claw portions and groove bearings are provided at the center portion in consideration of the ease of attaching and detaching work. By providing the cover, the detachability is reduced, but the cover can be more stably opened and closed, and bending and deformation can be prevented.

[0023]

As described above, according to the first aspect of the invention, when the detachable opening / closing cover is mounted, the cross section provided on the axis of the rotating shaft on the electronic device main body side is substantially semicircular. The auxiliary shaft provided on the detachable opening / closing cover side is inserted into the grooved bearing, and the claw provided on the detachable opening / closing cover near the auxiliary shaft is thinner than the grooved bearing. The outer periphery of the tongue is slidably engaged in the axial rotation direction. Therefore,
The detachable opening / closing cover is supported by both ends of the rotating shaft and the groove bearing, and the supporting strength is increased, so that the deformation of the detachable opening / closing cover can be prevented, and a stable opening / closing operation can be performed. On the other hand, when the detachable opening / closing cover is closed by a predetermined angle or more, the engagement between the claw portion and the thin tongue portion is in a separable state, and the auxiliary shaft can be detached from the groove bearing. The detachable opening / closing cover can be easily separated from the electronic device body.

According to the second aspect of the present invention, one groove bearing is provided substantially at the center of the electronic device main body, and the auxiliary shaft and the claw are provided at substantially the center of the detachable opening / closing cover. As a result, the detachable opening / closing cover can be satisfactorily held and prevented from being deformed, and the attaching / detaching operation of the detachable opening / closing cover can be easily performed.

Furthermore, according to the third aspect of the present invention, since the closing operation angle of the detachable opening / closing cover at which the engagement between the claw portion and the thin tongue portion becomes separable is 45 ° or more, it is conscious. Inadvertent detachment of the detachable opening / closing cover other than a simple detaching operation can be prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a part of an electronic apparatus to which a detachable opening / closing cover according to the present invention is applied.

FIG. 2 is an enlarged perspective view of the detachable opening / closing cover according to the present invention.

FIG. 3 is a sectional view illustrating a sectional shape and an opening / closing operation of the detachable opening / closing cover according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Laptop type personal computer (PC) 12 Main body cabinet 14 Removable opening / closing cover (cover) 16 Groove bearing 18 Nail 20 Auxiliary shaft

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H05K 5/03 G06F 1/16 H04N 5/64 551

Claims (3)

(57) [Claims] 1. A detachable opening / closing cover which is opened and closed by being rotated about a rotation axis with respect to an electronic device main body, and is detachably provided to the electronic device main body. It is provided on the axis of the rotating shaft,
A groove bearing having a substantially semicircular cross section and a thin tongue portion having a predetermined thickness at least at one end thereof, provided on the detachable opening / closing cover side, insertable into the groove bearing and rotatable in the groove. An auxiliary shaft, and a claw portion provided near the auxiliary shaft on the detachable opening / closing cover and slidably engaging the outer periphery of the thin tongue portion in the axial rotation direction. When the open / close cover closes more than a predetermined angle,
The horizontal space formed by the claw portion and the auxiliary shaft is wider than the thickness of the thin tongue portion, so that the engagement between the claw portion and the thin tongue portion can be separated, and the auxiliary shaft is formed in the groove. A detachable opening / closing cover that can be detached from a row bearing. 2. The detachable opening / closing cover according to claim 1, wherein the groove bearing provided on the electronic device main body side, and an auxiliary shaft and a claw portion provided on the detachable opening / closing cover side are electronic devices. A detachable opening / closing cover, wherein one is provided substantially at the center of the main body and the detachable opening / closing cover. 3. The detachable opening / closing cover according to claim 1, wherein a closing operation angle of the detachable opening / closing cover in which engagement between the claw portion and the thin tongue portion can be separated is 45 °. A detachable opening / closing cover characterized by the above.