JPH08125353A - Detachable switching cover - Google Patents

Abstract

PURPOSE: To provide a detachable switching cover wherein the deformation of a thin-walled switching cover can be prevented, and detaching from an electronic apparatus main body is enabled. CONSTITUTION: A trench stripe bearing 16 whose section is nearly semicircular is arranged on the pivotal axial line on the main body cabinet 12 side. An auxiliary shaft 20 arranged on the cover 14 side is inserted into the bearing 16. A pawl stripe part 18 arranged in the vicinity of the auxiliary shaft 20 on the cover 14 is engaged so as to be able to slide in the shaft rotation direction, on the outer periphery of a thin-walled tongue part 16a of one end portion of the bearing 16. When the cover 14 shuts an angle larger than or equal to a specific value, the engaging between the pawl stripe part 18 and the thin- walled tongue part 16a becomes separable. Then the auxiliary shaft 20 becomes detachable from the trench stripe bearing 16, and the cover 14 is separated from the main body cabinet 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is provided in an electronic device,
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detachable open / close cover that can be detached if necessary, and particularly to an attachable / detachable open / close cover for electronic devices, which is required to have a thin cover due to weight reduction.

[0002]

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

The opening and closing cover as described above often has a structure in which only the both ends are supported in order to simplify the structure and to easily attach and detach when it is necessary to attach and detach.

[0004]

However, as the weight of electronic equipment is reduced and the material cost is reduced, the opening / closing cover is also made thinner, and as a result, the opening / closing cover is bent or thermally deformed. There was a problem that caused.

In order to avoid such deformation, a structure in which the opening / closing cover is firmly supported is conceivable, but a new problem arises in that the opening / closing cover cannot be easily attached / detached.

The present invention has been made to solve the above problems, and it is possible to prevent the deformation even when the opening / closing cover is thinned, and to easily mount the electronic device body. An object is to provide a detachable opening / closing cover that can be attached and detached.

[0007]

In order to achieve such an object, the invention as set forth in claim 1 rotates and opens and closes with respect to an electronic equipment main body around a rotation axis, and the electronic equipment main body. A detachable opening / closing cover detachably attached to the electronic device main body, the thin tongue being provided on the axis of the rotary shaft on the electronic device body side and having a substantially semicircular cross section and having a predetermined thickness at least at one end side thereof. A groove bearing having a portion, an auxiliary shaft which is provided on the side of the removable opening / closing cover and which can be inserted into the groove bearing and is rotatable in the groove, and in the vicinity of the auxiliary shaft on the removable opening / closing cover. A thickness of the thin-walled tongue portion when the removable opening / closing cover is closed by a predetermined angle or more, and a claw strip portion that is provided so as to slidably engage on the outer periphery of the thin-walled tongue portion in the axial rotation direction. Therefore, the horizontal gap formed by the claw line and the auxiliary shaft becomes wider. 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, in the detachable opening / closing cover according to the first aspect, the groove bearing provided on the electronic device main body side and an auxiliary provided on the detachable opening / closing cover side. One of the shafts and the claws is provided at substantially the center of the electronic device body and the removable opening / closing cover.

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

[0010]

According to the structure of claim 1 of the present invention, when the removable opening / closing cover is mounted, the groove is provided on the axis of the rotating shaft of the removable opening / closing cover on the electronic equipment body side and has a substantially semicircular cross section. An auxiliary shaft provided on the side of the removable opening / closing cover is inserted into the linear bearing, and a claw linear portion provided near the auxiliary shaft on the removable opening / closing cover has at least one end side of the groove bearing. On the outer periphery of a thin-walled tongue portion having a predetermined thickness, which is slidably engaged in the axial rotation direction. Therefore, the detachable open / close cover is supported by both ends of the rotary shaft and the groove bearings, so that the supporting strength is increased and the detachable open / close cover can be prevented from being deformed.
On the other hand, when the removable opening / closing cover closes by a predetermined angle or more, the horizontal interval formed by the claw-shaped portion and the auxiliary shaft is wider than the thickness of the thin-walled tongue portion, and the claw-shaped portion and the thin-walled tongue portion are separated from each other. Since the engagement is separable and the auxiliary shaft can be disengaged from the groove bearing, the removable 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 in the substantially central portion of the electronic device body side, and one auxiliary shaft and one claw portion are provided in the approximately central portion of the removable opening / closing cover. Since it is provided, it is possible to favorably hold the detachable opening / closing cover and prevent deformation of the detachable opening / closing cover, and easily perform the attaching / detaching operation of the detachable opening / closing cover.

Further, according to the third aspect of the invention, since the closing operation angle of the detachable opening / closing cover in which the engagement between the claw portion and the thin tongue portion is separable is 45 ° or more, it is careless. It is possible to prevent the detachable opening / closing cover from falling off.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment 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).
10 is a partial perspective view of the main body cabinet 12 (rear part)
Is. A personal computer 1 on the rear side of the main body cabinet 12.
0 is provided with a storage unit 12a for storing a connector for connecting an external device such as a printer or an external hard disk drive (not shown) and switches for setting the device. Then, for the purpose of protecting the connectors and switches and improving the design of the personal computer 10, the storage section 12
A thin cover 14 that covers a is provided. The cover 14 can be opened and closed so that the connectors and switches can be exposed only when the connectors and switches are used, and is removable so that the user can remove the connectors and switches as necessary.

FIG. 2 is an enlarged perspective view of the removable opening / closing cover 14 (hereinafter, simply referred to as the cover 14). The cover 1
Reference numeral 4 denotes a convex rotary shaft 1 provided at both ends on the rotary axis A.
An openable and closable cover can be constructed by engaging 4a with concave bearings 12b provided on the inner walls of both ends of the housing 12a shown in FIG.

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

The shape and operation of the cover 14 will be described in detail below with reference to FIGS. A groove bearing 16 having a substantially semicircular cross-section on the rotation axis A at the substantially central portion of the housing portion 12a on the main body cabinet 12 side and having a thin tongue portion 16a having a predetermined thickness on at least one end side thereof is provided. Has been formed. On the other hand, on the cover 14 side, when the cover 14 is attached to the main body cabinet 12 and an opening / closing operation is performed, a pawl capable of sliding in the axial rotation direction on the outer peripheral surface of the thin tongue portion 16a of the groove bearing 16 is provided. A strip portion 18 is formed. Further, an auxiliary shaft 20 is provided inside the pawl 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 with each other, the thin tongue portion 16 a is inserted between the auxiliary shaft 20 and the claw portion 18. Therefore, the cover 14 has the auxiliary shaft 20 and the claw portion 18 in addition to the rotating shafts 14a at both ends.
And are supported at a total of three points by engaging the groove bearing 16, so that stable support of the cover 14 can be realized, and the rigidity of the thin-walled cover 14 is improved by providing the claw portion 18 and the like. Bending and deformation can be prevented. When the cover 14 is attached to the main body cabinet 12, the cover 14 is slightly bent outward as shown by a chain double-dashed line in FIG. 1 so that the bearing 12b and the rotating shaft 14a can be attached at a detachable angle described later. This can be done by engaging and engaging the auxiliary shaft 20, the claw portion 18 and the groove bearing 16.

When the cover 14 is mounted on the main body cabinet 12 and the opening / closing operation is performed as described above, FIG.
As shown in (a) and (b), the horizontal interval 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 distance P formed by the end m and the end n is minimum when the cover 14 is fully opened and maximum when the cover 14 is fully closed. In the present embodiment, this is an angle at which the cover 14 is consciously attached and detached, and in consideration of the ease of work at the time of attachment and detachment, when the closing operation of the cover 14 exceeds 45 ° from the horizontal position, the horizontal interval P becomes It is set to be larger than the horizontal thickness Q of the thin tongue portion 16a. Therefore, as shown in FIG. 3A, when the closing operation is less than 45 ° from the horizontal position, P1 <
In the relationship of Q, the groove shaft bearing 16 is sandwiched between the auxiliary shaft 20 and the claw line portion 18, the engagement between the both is not released, and the cover 14 is held well. On the other hand, FIG.
As shown in (b), when the closing operation is more than 45 ° from the horizontal position, the relationship of P2> Q is established, and the auxiliary shaft 20 and the claw portion 18 are moved vertically upward to move the groove bearing. It can be easily separated from 16.

Since the cover 14 is normally used in a fully closed state or a fully opened state, the cover 14 will be 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.

Further, as shown in FIG. 1, by providing the auxiliary shaft 20 and the claw portion 18 in the central portion of the cover 14 and the groove bearing 16 in the corresponding central portion of the main body cabinet 12, when the auxiliary shaft is inserted, etc. The positioning of the cover 14 is facilitated, the work at the time of mounting the cover 14 can be easily performed, and the cover 14 can be stiffened in a well-balanced manner.

In this embodiment, the detachable opening / closing cover of the laptop personal computer has been described as an example, but it is applicable to other electronic devices such as a video camera and a television monitor which require removal of the cover. It can be adapted and similar effects can be obtained. In particular, it is effective for a cover having a long length in the opening / closing axis direction and a thin wall thickness.

Further, in this embodiment, an example in which one set of the claws and the grooved bearings are provided in the central part in consideration of the ease of attachment and detachment work has been described. By providing the cover, the attaching / detaching workability is lowered, but it is possible to more stably open / close the cover and prevent bending / deformation.

[0023]

As described above, according to the first aspect of the present invention, when the detachable opening / closing cover is attached, the cross section provided on the axis of the rotating shaft on the electronic device body side is substantially semicircular. The auxiliary shaft provided on the side of the removable opening / closing cover is inserted into the groove bearing, and the claws provided near the auxiliary shaft on the removable opening / closing cover have a thin wall of the groove 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 rotary shaft and the groove bearings, so that the supporting strength is increased, deformation of the detachable opening / closing cover can be prevented, and stable opening / closing operation can be performed. On the other hand, when the removable opening / closing cover closes by a predetermined angle or more, the engagement between the claw-shaped portion and the thin-walled tongue portion becomes separable, and the auxiliary shaft can be separated from the groove bearing. The removable 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 in the substantially central portion of the electronic device main body side, and the auxiliary shaft and the claw portion are provided in the approximately central portion of the removable opening / closing cover. Since the detachable opening / closing cover is provided, it is possible to favorably hold the detachable opening / closing cover and prevent deformation of the detachable opening / closing cover, and to easily attach / detach the detachable opening / closing cover.

Further, according to the third aspect of the invention, since the closing operation angle of the removable opening / closing cover in which the engagement between the claw portion and the thin-walled tongue portion is separable is 45 ° or more, it is intentional. It is possible to prevent the detachable opening / closing cover from being accidentally dropped except for a simple detaching operation.

[Brief description of drawings]

FIG. 1 is a perspective view showing a part of an electronic device to which a removable cover according to the present invention is applied.

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

FIG. 3 is a cross-sectional view illustrating a cross-sectional shape and opening / closing operation of the removable open / close cover according to the present invention.

[Explanation of symbols]

10 Laptop type personal computer (PC) 12 Main body cabinet 14 Removable cover (cover) 16 Groove bearing 18 Claw 20 Auxiliary shaft

Claims (3)

[Claims] 1. A detachable opening / closing cover which is opened and closed by rotating about an axis of rotation with respect to an electronic device main body and is detachably attached 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 on one end side thereof, and provided on the detachable opening / closing cover side, insertable into the groove bearing and rotatable in the groove An auxiliary shaft, and a claw line portion provided on the removable opening / closing cover in the vicinity of the auxiliary shaft and engaged on the outer periphery of the thin tongue portion so as to be slidable in the axial rotation direction. When the open / close cover closes more than a predetermined angle,
The horizontal interval formed by the nail strip and the auxiliary shaft is wider than the thickness of the thin tongue, and the engagement between the nail strip and the thin tongue becomes separable. A detachable open / close cover that can be removed from the linear bearing. 2. The detachable opening / closing cover according to claim 1, wherein the groove bearing provided on the electronic device main body side, and the auxiliary shaft and the claw strip portion provided on the detachable opening / closing cover side are electronic devices. One detachable opening / closing cover, which is provided at a substantially central portion of the main body and the detachable opening / closing cover. 3. The removable opening / closing cover according to claim 1, wherein the engagement angle between the claw bar and the thin-walled tongue is separable, and the closing operation angle is 45 °. The detachable open / close cover characterized in the above.