JP3341599B2 - LCD protective cover structure for portable information terminals - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an LCD protective cover structure for a portable information terminal device.

[0002]

2. Description of the Related Art For example, a resin or metal cover is used for a housing body case of a portable information terminal device, and is attached to the housing body case so as to be openable and closable.

In some cases, a handle is provided to open and close the cover. Next, a conventional LC with a handle
The D protection cover structure will be described with reference to the drawings.

[0004] FIG. 7 shows an LC in a conventional portable information terminal.
It is the perspective view seen from the front side of D protection cover structure.

[0005] The LCD protective cover 1 shown in FIG. 7 is attached to the surface of the housing body case 2.

FIG. 8 shows an LC in a conventional portable information terminal.
It is the perspective view seen from the back side of D protection cover structure.

The LCD protective cover 1 is connected to the housing body case 2 by a hinge plate 3, and the hinge shaft 3a of the hinge plate 3 on the housing body side and the LCD.
The structure is such that the rear edge 4 of the housing main body case 2 is rotated around the hinge shaft 3b on the side of the protective cover 1 as a rotation axis.

When the LCD protective cover 1 is closed, a flat locking piece 1a provided on the hinge side and the facing side of the LCD protective cover 1 is locked to the movable push button 5, and the cover cannot be easily opened. It has a structure. When the LCD protective cover 1 is opened, it is possible to arbitrarily open the cover by putting a finger on a handle 6 provided on a part of the end face of the LCD protective cover 1. The handle 6 is generally provided inside the outer shape of the housing body case 1.

In this case, in consideration of the operability, the housing body case 1 is provided with a concave recess 2 at a relative position of the handle portion 6.
a is provided to make it easy to hook a finger on the handle 6.

An LCD protective cover 1 of this kind includes an LCD
A handle 6 is provided for facilitating the opening and closing operation of the protective cover 1.
a, it is necessary to be provided, when carrying the portable information terminal device,
Easy to open.

Further, in order to provide a concave recess 2a in a part of the housing body case 1, a part of a circuit board inscribed in the case is cut out along the recess 2a of the housing body 1 case or the recess 2a is avoided. To make the outer shape smaller,
It is necessary to store the components, the mounting efficiency of components on the circuit board is reduced, and the structure of the housing body case 1 is complicated, resulting in increased costs.

In order to improve the mounting efficiency, it is conceivable to provide a handle 6 outside the outer shape of the housing body case 1 so as to eliminate the dent in the relative position of the housing body case 1 and make it flat. In this case, the above-mentioned drawback occurs when carrying the device.

[0013]

A first problem of the above-mentioned LCD protective cover structure in the conventional portable information terminal is that the LCD protective cover needs a handle when opened when the apparatus is used, and operability is increased. In consideration of the above, the clasp travels from the main body case.

The reason for this is that if this type of device comes out of the main body of the device to be carried in a bag or a pocket, it will be easily caught in a stored item or a pocket inside the bag, which is a functional problem.

A second problem is that when the handle portion is located inside the main body, it is necessary to make a part of the main body concave so that it can be easily opened with a finger. In this case, the circuit board or the like inside the main body is notched along the portion, which is a problem in mounting efficiency.

The reason is that it is necessary to simplify the external shape of the housing main body case and secure a mounting space for the internally mounted components in order to increase the mounting efficiency inside the main body case due to the reduction in size and weight of the device, and to increase the mounting efficiency. .

An object of the present invention is to use the effective space of the internally mounted components and release the cover lock without impairing the operability of opening and closing the LCD protective cover, and thereby to prevent the LCD protective cover and the housing body case surface from being opened. It is an object of the present invention to provide an LCD protective cover structure in a portable information terminal in which an appropriate gap is generated and a finger can easily be hooked and opened on the protective cover.

[0018]

An LCD protective cover structure of a portable information terminal according to the present invention has a pair of convex projections having an L-shaped cross section, a concave side, and a ridge line of each convex projection. In the part, an oval hole is formed with a U-shaped cross section, and a slip stopper made of elastic rubber is slightly protruded from the ridge line part in the oval hole and inscribedly locked, and furthermore, the L-shaped cross section The other side of the flat surface is provided with a locking groove having a U-shaped cross section in the vicinity of each of the aforementioned convex protrusions, a locking groove at the center of the plane, and a similar locking groove on a straight line. And rubber feet formed of elastic rubber that are internally fixed to each of the locking grooves.

[Operation] When the LCD protective cover is closed,
First, the hinge pin for fitting on the housing body case side of the hinge plate which fits into the hinge boss hole of the housing body case for hinge pin locking is fitted and locked, and the hinge plate and the LCD protective cover are integrated around the hinge pin. L that rotates and fits with the hinge pin
The non-slip elastic rubber that protrudes from the convex ridge line of the cross section of the cover boss hole of the CD protective cover and is inscribed is pressed into contact with the flat step on the back of the main body case, and is locked.
The flat cover is fitted with the movable push button and the force acting from one side is received by the mutual frictional force of the flat step and the non-slip elastic rubber, ensuring the flat shape of the LCD protective cover. The projection locking piece is fitted and locked on the push button. Further, when the LCD protective cover is closed, the rubber feet inscribed and fixed to a plane near the convex support section of the cover boss of the LCD protective cover are in a compressed state by the LCD protective cover.

On the other hand, when the LCD protective cover is opened, when the lock is released, the flat projection locking piece of the LCD protective cover is released from the push button, the rubber foot is released from the compressed state, and the elastic force of the rubber generated when released. Is because the convex support portion of the LCD protective cover is locked by the mutual frictional force between the anti-slip elastic rubber and the flat step portion on the back of the housing body case, so that one side of the flat protective projection of the LCD protective cover is locked. To provide an adequate gap between the main body case surface and the LCD protective cover,
The finger can be easily hung on the end face of the D protective cover, and the LCD protective cover can be easily opened.

[0021]

Next, embodiments of the present invention will be described with reference to the drawings.

FIGS. 1 and 2 are perspective views of one embodiment of the LCD protective cover structure of the portable information terminal according to the present invention as viewed from the rear side.

Referring to FIG. 2, the LCD protective cover 7 is applied to an opening / closing structure which is attached to the resin housing body case 8 so as to be openable / closable. The LCD protective cover 7 is pivotally opened around the rear edge portion 9 of the portable information terminal device with respect to the housing body case 8 and is opened. As shown in FIG. 7 will be exposed.

The LCD protective cover 7 is mounted via a flat, U-shaped cross section hinge plate 10 provided on the back of the housing body case 8.

The hinge plate 10 is separate from the housing body case 8 and is mutually opposed in the facing direction as shown in a perspective view of the hinge plate of the LCD protective cover structure in the portable information terminal of the present invention in FIG. A pair of hinge pins 10a and a cover pin 10b are provided, which are opposed to each other and extend to the left and right. The hinge pins 10a are fitted into a pair of case body boss holes 8a provided to face the lower part of the back surface of the housing body case 8 side. The cover pin 10b supports the LCD in the portable information terminal of the present invention shown in FIG.
As shown in a perspective view of the LCD protective cover having the protective cover structure, the LCD protective cover 7 of the present invention is fitted and rotated and supported in a cover boss hole 7b provided opposite to the pair of convex support portions 7a of the LCD protective cover 7. Is formed.

A pair of convex support portions 7 of the LCD protective cover 7
As shown in FIG. 4, the ridge 7c of FIG. 4A is provided with an engaging hole 7d having a U-shaped cross section and an elliptical shape. This locking hole 7
Each of the members d is internally locked with a slip stopper 11 formed of a rubber-like elastic rubber in a sectional view.

The non-slip 11 projects slightly beyond the ridge 7c of the convex support 7a and is locked.

Further, the cover flat portion 7 of the LCD protective cover 7
In f, near the above-mentioned pair of convex support parts 7a and in the center, elliptical groove holes 7e having a U-shaped cross section are provided on a straight line. Seen in a sectional view, rubber feet 12 formed of a rubber-like elastic rubber are fixed to the respective slots 7e.

Further, a flat projection locking piece 13 is provided at the center of the end face of the cover flat portion 7f of the LCD protective cover 7 corresponding to the pair of convex support portions 7a of the LCD protective cover 7 and faces the LCD. The protective cover 7 pivotally moves the hinge pins 10a and the cover pins 10b of the hinge plate 10 in the front-rear direction about the rear edge 9 of the rear surface of the housing body case 8 via the hinge plate 10 about the center of rotation. 8 engages with and is locked by a movable push button 14 provided at the end of the front face.

FIG. 5 is a cross-sectional view of the housing body case 8 taken along the line AA, in which the internal mounting parts are omitted.

When the portable information terminal is used, the LCD protective cover 7 is open to an arbitrary position B. When the LCD protective cover 7 is closed, it is rotated in the front F direction. In this case, first, the hinge pin 10a of the hinge plate 10 rotates to the position C on the way about the housing body case 8 and the case body boss hole 8a as a rotation axis. Further, when the LCD protective cover 7 is continuously rotated from the position C to the position D, first,
A flat step portion 8b is provided on the rear surface of the housing body case 8, and the flat step portion 8b abuts against the surface of the anti-slip 11 of the ridge line portion 7c of the convex support portion 7a.

At this time, since the slip stopper 11 slightly protrudes from the ridge line portion 7c as described above and is internally locked,
Due to the elasticity of the rubber, it is locked to the flat step 8b of the housing body case 8 in a compressed state.

As a result, a frictional force can be obtained between the slip stopper 11 and the flat step portion 8b. This frictional force serves as a rotation support when the rotation is further advanced, and also serves as a point of action, and it is possible to prevent the hinge plate 10 from being displaced in the rear direction of the housing body case 8, and the rotation is reliably performed. Thus, the first object of the present invention is obtained.

Next, when the rotation is advanced, the LCD protective cover 7 is turned to the hinge plate 1 by using the above-mentioned rotation support as an operation point.
The cover projection 7b of the LCD protective cover 7 is continuously rotated about the cover boss hole 7b in which the cover pin 10b of the LCD cover 7 is fitted to the movable push button 14 provided on the front end surface of the housing body case 8. 13 are engaged and locked,
The LCD protective cover 7 is locked and closed securely.

At this time, the rubber feet 12 inscribed and fixed to the cover flat portion 7f of the LCD protective cover 7 are in a compressed state between the surface of the housing body case 8 and the LCD protective cover 7 due to the elasticity of the rubber. In this state, the LCD protective cover 7 is closed.

When opening the LCD protective cover 7, first,
The movable push button 14 is moved to release the engagement and locking of the flat projection locking piece 13 at the center of the end surface of the cover flat portion 7f of the LCD protective cover 7 to release from the locked state.

The rubber foot 12 in the instantaneously compressed state is released from the compressed state, and the releasing force generated at that time automatically releases the flat projection locking piece 13 of the LCD protective cover 7 and, at the same time, further releases the slip prevention 11. And the flat stepped portion 8b on the back surface of the housing body case 8 is used as a point of rotation to cause a rotational motion, so that a gap G is generated between the surface of the housing body case 8 and the LCD protective cover 7, By using this gap G, it is possible to move a finger on the end face of the LCD protective cover 7, rotate it backward, and easily open it arbitrarily.

FIG. 6 shows the anti-slip 1 internally fixed to the convex support portion 7a and the ridge line portion 7c when the LCD protective cover 7 shown in FIG. 5 is closed, and the flat step portion 8b of the housing body case 8. It is the enlarged view which expanded the lower part which shows the state.

The LCD protective cover structure of the present invention comprises a plurality of U-shaped ellipses which are insulated and fixed in the U-shaped elliptical locking holes of the convex ridgeline support portion and which are provided in a straight line on the anti-slip and cover plane portions. The rubber foot fixed to the slot of the shape is not limited to the elastic rubber, and may be any material as long as it is an elastic material. Further, the rubber foot may be an integral type instead of a plurality.

[0040]

As described above, the first effect of the LCD protective cover structure in the portable information terminal of the present invention is that
When closing the CD protective cover, the LCD protective cover acts to receive the force from the direction of the flat projection locking piece by the non-slip, and securely fits the flat projection locking piece and the push button. , Can be locked.

The reason for this is that the force from one direction of the flat projection locking portion of the LCD protective cover is subjected to the elastic force of the non-slip rubber and the frictional force generated at the flat step on the rear surface of the housing body case. In addition, the LCD protective cover is prevented from being displaced rearward, and the flat projection locking piece is securely fitted to the push button.

The second effect is that the claw portion of the LCD protective cover can be eliminated, and there is no need to provide a concave recess at the relative position of the claw portion of the housing body case. And the structure of the main body case is simplified.

The reason is that when the LCD protective cover is closed, the rubber feet fixed to the LCD protective cover are in a compressed state due to the elasticity of the rubber. The projection locking piece is
The elastic force of the rubber generated when the rubber foot is released from the compressed state by releasing from the push button acts on the LCD protective cover to flip up, and the housing body case surface and the L
An appropriate gap is obtained between the cover and the CD protective cover, and a finger can be easily hung on the end face of the LCD protective cover.
The CD protective cover can be easily opened.

Further, the provision of the handle portion and the provision of the concave recess of the housing body case can be avoided, so that the structure can be simplified and the cost can be reduced.

Further, even if the device is dropped by mistake when carrying the device, the rubber feet function as a cushion and there is nothing protruding from the housing body case.
There is also an effect that protection of D and damage to the housing can be prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of an LCD protective cover structure of a portable information terminal according to the present invention as viewed from the back side.

FIG. 2 is a perspective view of one embodiment of the LCD protective cover structure in the portable information terminal of the present invention as viewed from the back side.

FIG. 3 is a perspective view showing a hinge plate of an LCD protective cover structure in the portable information terminal of the present invention.

FIG. 4 is a perspective view showing an LCD protective cover having an LCD protective cover structure in the portable information terminal of the present invention.

FIG. 5 is a cross-sectional view taken along the line AA of the housing body case having the LCD protective cover structure in the portable information terminal of the present invention.

FIG. 6 is an enlarged view of a portion E of FIG. 5 of the LCD protective cover structure in the portable information terminal of the present invention.

FIG. 7 is a perspective view of the LCD protective cover structure in the conventional portable information terminal as viewed from the front side.

FIG. 8 is a perspective view of the LCD protective cover structure of the conventional portable information terminal as viewed from the rear side.

[Explanation of symbols]

 1,7 LCD protective cover 2,8 Housing main body case 3,10 Hinge plate 4,9 Rear edge 5,14 Push button 7a Convex support 7b Cover boss hole 8a Case main body boss hole 8b Flat step 11 Non-slip 12 Rubber feet 13 Flat projection locking pieces

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-324127 (JP, A) JP-A-8-16522 (JP, A) JP-A-9-305255 (JP, A) 87989 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G06F 1/16-1/18 G06F 15/02 G06F 3/03-3/037 H05K 5/00-5/06 G09F 9/00

Claims (7)

(57) [Claims] An elliptical hole having a U-shaped cross section is formed in a ridge of each of the convex protrusions having an L-shaped cross section, a concave side, and a ridge of each of the protrusions. An LCD protective cover structure characterized in that a non-slip formed of elastic rubber in an oval hole slightly protrudes from a ridge line and is internally locked. 2. The LCD protective cover structure for a portable information terminal according to claim 1, wherein a general elastic material is used as the non-slip elastic rubber. 3. The other side of the L-shaped cross section is a plane, and a similar engagement groove is formed in a straight line with the locking groove having a U-shaped cross section in the vicinity of each of the projections and the locking groove at the center of the plane. 3. A locking groove according to claim 1, wherein said locking groove is provided with a rubber foot formed of an elastic rubber to be fixed internally .
LCD protective cover structure for portable information terminals . 4. An LCD protective cover structure for a portable information terminal according to claim 3 , wherein a plurality of locking grooves and rubber feet are provided. 5. The method of claim 3, LCD protective cover structure in a portable information terminal, characterized in that the locking groove and the rubber foot of claim 4, wherein the was integrated type, respectively. 6. An LCD protective cover structure in a portable information terminal according to claim 3, wherein a general elastic material is used as the rubber foot. 7. The LCD protective cover structure in the portable information terminal according to claim 1 or 2, and the LCD protective cover structure in the portable information terminal according to claim 3, 4, 5, or 6. An LCD protective cover structure for a portable information terminal, comprising: