JPH1117577A - Portable electronic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To protect a display section of the portable electronic device even when the size of the display section is large, to facilitate an open/close operation of a cover and to improve the operating convenience of use. SOLUTION: A 1st cover member 11 connecting to a main body 1 in two cover members 11, 12 folded freely to the main body 1 is connected to the main body 1 via a hinge energizing the cover member 11 to be open at a 1st prescribed angle, and a projection 14 slided along a guide groove 7 and engaged with the guide groove 7 formed to both side ridges of the main body 1 in the lengthwise direction is formed to the 2nd cover member 12. The guide groove 7 is formed to be a curve 7a at which the 1st cover member 11 is open largely than the 1st prescribed angle. The cross sectional shapes of both sides of the projection 14 differ and the projection 14 is in contact with both side walls of the guide groove 7 when the cover 10 is closed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable electronic device having a foldable cover, and more particularly to a portable electronic device having a call function.

[0002]

2. Description of the Related Art A portable electronic device such as a portable telephone is provided with a cover for protecting a key operation unit. Further, in this type, there are a microphone provided on the main body side and a microphone provided on the cover side. Further, there have been developed ones provided with a cover for protecting both the key operation part and the display part, or those provided with the display part on the main body side and the key operation part provided on the inner surface of the cover. In this case, the microphone is provided on the cover side.

[0003]

By the way, recent portable telephones have not only a call function but also a data communication function, and it is desired to enlarge the display unit accordingly. In this case, the size of the display unit could be reduced to less than half the distance between the microphone and the speaker.

[0004] It is an object of the present invention to provide a portable electronic device provided with a cover capable of protecting even a large display unit. Another object of the present invention is to provide a portable electronic device that can be easily opened and closed and that is easy to use.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the invention according to claim 1 is provided with a cover which can be opened and closed with respect to a main body. The cover member includes two cover members freely connected to each other, and urges a first cover member of the two cover members so that the cover member opens at a first predetermined angle with respect to the main body. And the second cover member engages with a guide groove formed on a longitudinal side edge, preferably both side edges of the main body, and opens and closes the cover member. It is characterized by a configuration in which a projection, such as a cross-section having an irregular shape or a circular shape, is formed which sometimes slides along the guide groove.

Here, as the portable electronic device, there is a portable communication device represented by a portable telephone, but other portable electronic devices may be used. As the hinge mechanism, for example,
The combination of a cam fixed to the main body and a spring fixed to the first cover member and engaged with the cam makes the first
Is configured to urge the cover member to open at the first predetermined angle, but other configurations may be used. Examples of the protrusion include those having a different shape in cross section and those having a circular shape, but may have other shapes.

As described above, according to the first aspect of the present invention, the portable electronic device is constituted by the two cover members in which the cover which can be opened and closed with respect to the main body is foldably connected to the main body. Even though it is a cover that folds, its length is almost halved when folded, so it does not get in the way when used. Then, the first cover member is connected to the main body via a hinge mechanism that urges the first cover member to open at a first predetermined angle,
The second cover member is formed with a protrusion that engages with the guide groove formed on the longitudinal side edge of the main body and slides along the guide groove when the second cover member is opened and closed. At the same time when the cover is opened at the predetermined angle, the protrusion of the second cover member slides along the guide groove of the main body, and the cover is opened at the predetermined angle, so that operability is good.

According to a second aspect of the present invention, in the portable electronic device according to the first aspect, the hinge mechanism is configured such that an opening angle of the first cover member is smaller than the first predetermined angle. When the angle is not more than the predetermined angle, the first cover member is urged to close, and when the open angle of the first cover member is larger than the second predetermined angle, The first cover member is biased so as to open at the first predetermined angle. For example, the first cover member includes a biasing unit including a pair of leaf springs.

As described above, according to the second aspect of the present invention, the hinge mechanism according to the first aspect is such that the opening angle of the first cover member is equal to or less than the second predetermined angle smaller than the first predetermined angle. When the angle of opening of the first cover member is larger than the second predetermined angle,
Since the portable electronic device has an urging unit that urges the first cover member to open to the first predetermined angle, if the opening angle of the first cover member is set to a second predetermined angle smaller than the first predetermined angle, the urging is performed. The operability is further improved by the means for automatically closing the cover.

[0010] The third aspect of the present invention is the first or second aspect.
The portable electronic device according to claim 1, wherein the guide groove is formed in a shape such as a curved shape or a rising shape, in which the first cover member can be opened more than the first predetermined angle, It is characterized by.

As described above, according to the third aspect of the present invention, the guide groove according to the first or second aspect is formed in a shape that allows the first cover member to open more than the first predetermined angle. Since the portable electronic device is a portable electronic device, the first cover member is opened to a first predetermined angle by opening the first cover member more than the first predetermined angle by the shape of the guide groove in which the protrusion of the second cover member slides. The cover, the main body, or the hinge mechanism is not broken even when an external pressure in the opening direction is further applied in the opened state.

According to a fourth aspect of the present invention, in the portable electronic device according to any one of the first to third aspects, the hinge mechanism is configured such that the first cover member is larger than the first predetermined angle. When the cover is opened, the first cover member is urged to return to the first predetermined angle. For example, the first cover member is provided with an urging means such as a pair of leaf springs.

As described above, according to the fourth aspect of the present invention, the hinge mechanism according to any one of the first to third aspects, when the first cover member is opened more than the first predetermined angle. Since the portable electronic device has the urging means for urging the first cover member to return to the first predetermined angle, when the first cover member is opened more than the first predetermined angle, the first cover member is moved to the first predetermined angle. The cover, the main body or the hinge mechanism is not broken even if an external pressure in the opening direction is further applied in a state where the cover is opened at the predetermined angle, and when the external pressure is removed, the cover is automatically set to the first predetermined angle by the urging means. By returning, the operability is good.

According to a fifth aspect of the present invention, there is provided the portable electronic device according to any one of the first to fourth aspects, wherein an unlocked state in which the cover is closed is released by operating an external operation button. Means comprising means.

Thus, according to the fifth aspect of the present invention, there is provided a lock release means for releasing the locked state in which the cover according to any one of the first to fourth aspects is closed by operating an external operation button. Since the portable electronic device is provided, the locked state in which the cover is closed can be released by operating the external operation button, and the operation when opening the cover becomes easy.

According to a sixth aspect of the present invention, in the portable electronic device according to any one of the first to fifth aspects, the protrusion has an irregular shape such as an elliptical cross section, and the cover is closed. In this state, the guide grooves are in contact with both side walls of the guide groove.

As described above, according to the sixth aspect of the present invention, the projection according to any one of the first to fifth aspects has an irregular cross section, and the side walls of the guide groove in a state where the cover is closed. Since the portable electronic device is in contact with the cover, when the cover is closed, the protrusion having an irregular cross-section comes into contact with both side walls of the guide groove, thereby preventing the cover from rattling.

According to a seventh aspect of the present invention, in the portable electronic device according to any one of the first to fifth aspects, the guide groove has a width of a portion where the protrusion is located when the cover is closed. Is the same as the diameter of the projection, and the width of the other portion is larger than the diameter of the projection.

According to the seventh aspect of the present invention, the guide groove according to any one of the first to fifth aspects has a configuration in which the width of the portion where the projection is located with the cover closed is the diameter of the projection. And the width of the other parts is larger than the diameter of the protrusion, so when the cover is closed, the protrusion comes into contact with both side walls of the guide groove having the same width as the diameter, so that the cover rattles. Disappears.

The invention according to claim 8 is the portable electronic device according to any one of claims 1 to 7, characterized in that a microphone is provided on the cover member.

Thus, according to the invention of claim 8, since the portable electronic device is provided with the microphone on the cover member according to any one of claims 1 to 7, the microphone provided on the cover can detect sound. Thus, it can be used as a portable communication device, and the size of the main body can be reduced.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a portable electronic device according to the present invention will be described below with reference to FIGS.

<First Embodiment> First, FIG. 1 shows a portable telephone as a first embodiment of a portable electronic device to which the present invention is applied, in which a cover is closed. FIG. 2 is a plan view, and FIG. 2 is a side view of the mobile phone with the cover closed. FIG. 3 is a plan view showing a state in which the cover of the mobile phone of FIG. 1 is opened to a first predetermined angle, and FIG. 4 is a side view of the mobile phone with the cover opened. 5 shows a hinge mechanism (hinge unit) for connecting the main body and the first cover member. FIG. 5 (A) is a front view, and FIG. 5 (B) is an arrow B- in FIG. 5 (A). FIG. 5C is a view showing a state where the cam portion is broken along the line B and the cover opening angle is equal to or less than a second predetermined angle, and FIG. 5C is similar to FIG. FIG. 5 is a view showing a state of the cover opening angle below a predetermined angle of FIG.
(D) is a diagram showing a state where the cover opening angle is the first predetermined angle as in FIG. 5 (B), and FIG. 5 (E) is a cover opening angle exceeding the first predetermined angle as in FIG. 5 (B). It is a figure showing a state. 6A and 6B show the relationship between the guide groove and the projection in the mobile phone with the cover of FIG. 1 closed. FIG. 6A is a side view showing the guide groove and the projection with a broken line. FIG. 6B is an enlarged view of a portion indicated by an arrow A in FIG. 7A and 7B show a state in which the cover of FIG. 6 starts to be opened. FIG. 7A is a side view, and FIG. 7B is an enlarged view of a portion indicated by an arrow A in FIG. FIG. 8 shows the state of the opening process of the cover up to the first predetermined angle following FIG.
8A is a side view, and FIG. 8B is an enlarged view of an arrow A portion in FIG. 8A. 9 shows a state in which the cover is opened at a first predetermined angle subsequent to FIG. 8, and FIG. 9A is a side view, and FIG.
FIG. 10B is an enlarged view of a portion indicated by an arrow A in FIG. FIG.
FIG. 10A shows an open state of the cover exceeding the first predetermined angle shown in FIG. 9, FIG. 10A is a side view, and FIG.
FIG. 11 is an enlarged view of a portion indicated by an arrow A in FIG.

In FIG. 1 to FIG. 10, reference numeral 1 denotes a device main body, 2 denotes a battery unit, 3 denotes an antenna, 4 denotes a speaker sound emitting hole, 5 denotes a microphone hole, 6 denotes a display unit, 7 denotes a guide groove, 7 denotes a guide groove.
a is a curved portion, 10 is a folding cover, 11 is a first cover member, 12 is a second cover member, 13 is a folding shaft, 14 is a deformed projection, 15 is a concave cutout, 16 is an arc cutout, 17 is an insertion hole, 20 is a hinge mechanism (hinge unit), 21 is a fixed shaft, 22 is a square fixing part, and 23 is D
A mold cam portion, 24 is a ring groove, 25 is a leaf spring (biasing means), 26 is a leaf spring fixing member, and 27 is a continuous member.
That is, in this embodiment, as shown in FIG. 2, the device main body 1 of the mobile phone includes the battery unit 2 in the lower half on the back side, and the antenna 3 on the upper end surface.
As shown in FIG. 3, on the front side, a pair of speaker sound emitting holes 4 and 4 are provided on the upper part, and a microphone hole 5 is provided on the lower part. 6. Further, the device main body 1 is provided with a folding cover 10 for protecting the large display section 6 of the pen input type LCD.

As shown in FIGS. 1 to 4, the folding cover 10 includes a first cover member 11 and a second cover member 1.
2 are foldably connected to each other by a pair of left and right folding shafts 13, 13. In the folding cover 10, the first cover member 11 is connected to a lower portion of the device main body 1 by hinge mechanisms 20, 20 as a pair of left and right hinge mechanisms as shown in FIG. I have. As shown in FIGS. 3 and 4, guide grooves 7, 7 extending in the vertical direction along the longitudinal direction are formed on both side edges of the device main body 1, more specifically, on both side surfaces. The lower end side of this guide groove 7 is
Is a curved portion 7a in the shape of an arc toward the front side of. As shown in FIGS. 6 to 10, the second cover member 12 is engaged with the guide grooves 7 on both sides of the device main body 1 on the inner surfaces of both ends opposite to the folding shaft 13, respectively. Sliding I-shaped irregular projection 1 with almost elliptical cross section
4, 14 are provided integrally. The width of the irregularly shaped projection 14 in the longitudinal direction of the I-shape having a substantially elliptical cross section is the same as the width of the guide groove 7.

As shown in FIG. 1, the first cover member 11 has a concave notch 1 for exposing the microphone hole 5 of the device body 1 to the outside with the folding cover 10 closed.
5 are formed. As shown in FIG. 3, the second cover member 12 is formed with an arc-shaped notch 16 for exposing the microphone hole 5 of the device body 1 to the outside when the folding cover 10 is opened. This arc-shaped notch 1
As shown in FIG. 1, reference numeral 6 denotes a shape that matches the shape of the lower part of the speaker sound emission holes 4 and 4 of the device body 1 when the folding cover 10 is closed. And the first
As shown in FIG. 1, left and right insertion holes 17, 17 that are open on both sides are formed in the cover member 11. ) 20 is inserted and assembled.

Here, the hinge mechanism (hinge unit) 2
Numeral 0 is provided with a pair of leaf springs 25, 25 forming a biasing means with the fixed shaft 21, as shown in FIG. 5 (A). That is, the fixed shaft 21 has a square fixing portion 22 and a D-shaped cam portion 23 having a D-shaped cross section on the same axis, and a ring groove 24 is formed at an end of the square fixing portion 22. 22
Is inserted from the insertion hole 17 into the square hole of the device body 1,
It is fixed by inserting an E-ring into the ring groove 24. Then, on the outer periphery of the D-shaped cam portion 23, FIG.
As shown in (E), a pair of leaf springs 25 and 25 are engaged with each other in the diametrical direction.
5 and 25, as shown in FIG.
, And is fixed to the first cover member 11 through a leaf spring fixing member 26.

The above-described hinge mechanism (hinge unit) 20
According to this embodiment, according to this embodiment, the D-shaped cam portion 23 fixed to the device main body 1 is fixed to the first cover member 11 which engages with the D-shaped cam portion 23 in the diameter direction. By the spring force of the pair of leaf springs 25, the opening and closing behavior of the folding cover 10 is performed as described below. First,
As shown in FIG. 5B, when the opening angle of the first cover member 11 with respect to the device main body 1 is, for example, 45 degrees, the first cover member 11 closes in the direction of the arrow due to the urging force. It will be. Further, as shown in FIG. 5C, when the opening angle of the first cover member 11 with respect to the device main body 1 is, for example, 90 degrees, the first cover member 11
Is opened in the direction of the arrow by the urging force, and as shown in FIG. Therefore, this 150-degree cover opening angle is the first predetermined angle state, and a stable state is obtained.

As described above, the lower end side of the guide groove 7 of the device main body 1 is an arc-shaped curved portion 7a facing the front side of the device main body 1, and this curved shape portion 7a is formed by an external force. Due to the action and the like, the second cover member 1
When the I-shaped irregular projection 14 of FIG. 2 slides, FIG.
As shown in the figure, the opening angle of the first cover member 11 with respect to the device main body 1 is, for example, up to 165 degrees, that is, the cover opening angle exceeding the first predetermined angle (150 degrees). An angular state is obtained. However, in this case,
When the action of the external force is released, the first cover member 11 is biased by the first cover member 11 to the first predetermined angle (1) as shown by the arrow.
50 degrees). FIG. 5 (B)
5C, the opening angle of the first cover member 11 with respect to the device body 1 is, for example, 60 degrees.
Of the cover member 11 is closed or opened by the urging force. Therefore, the cover opening angle of 60 degrees is the second predetermined angle state.

Next, an example of use of a portable telephone provided with the folding cover 10 having the above configuration will be described. First, FIG. 6A is a side view showing a relationship between the guide groove 7 and the I-shaped protrusion 14 in a state where the folding cover 10 is closed. FIG. FIG. 6 is an enlarged view of an arrow A portion of FIG.
As shown in (B), since the I-shaped irregular projection 14 having a substantially elliptical cross section is in contact with both side walls of the guide groove 7, there is no backlash of the second cover member 12 with respect to the device body 1, that is, There is no backlash of the folding cover 10. Further, as shown in FIG. 3, since the folding cover 10 that protects the large display unit 6 is employed, the length of the display unit 6 can be reduced to almost half when it is folded while covering a large area. Sometimes out of the way.

From the state in which the folding cover 10 is closed, one of the first cover member 11 and the second cover member 12, for example, the second cover member 12 is held, and FIG. As shown in (B) and (B), when the folding cover 10 starts to be opened and the cover opening angle exceeds a second predetermined angle (60 degrees), the folding cover 10 is automatically turned to the first predetermined angle (150 degrees) as follows. The folding cover 10 is opened. That is, as described above, the pair of leaf springs 25 and 2 that engage with the D-shaped cam portion 23 of the hinge mechanism 20 in the diametrical direction.
5, the first cover member 11 passes through a 90-degree cover opening angle as shown in FIGS.
As shown in FIGS. 9A and 9B, the cover opening angle up to a first predetermined angle (150 degrees) is generated by the torque generation of the hinge mechanism 20. Therefore, the operability when opening the cover is excellent. Note that such a first predetermined angle (1
Even when the cover is used at a cover opening angle of 50 degrees, the I-shaped irregular projection 14 having a substantially elliptical cross section is in contact with both side walls of the guide groove 7, so that the folding cover 10 does not rattle with respect to the device body 1. .

When closing the cover, FIG.
And (B), the first predetermined angle (150 degrees)
From the cover open angle state up to this point, for example, the folding cover 10 is started to be closed by holding the second cover member 12, and FIG.
After the cover opening angle of 90 degrees shown in FIGS. 7A and 7B, as shown in FIGS. 7A and 7B, the opening angle of the folding cover 10 becomes equal to or less than the second predetermined angle (60 degrees). Then, the torque generated by the hinge mechanism 20 causes
As shown in (A) and (B), the cover is automatically closed. Therefore, the operability when closing the cover is excellent.

Further, in the cover opening angle state at the first predetermined angle (150 degrees) as shown in FIGS. 9A and 9B, the lower portion of the guide groove 7 due to the action of external force or the like. FIGS. 10A and 10B show an arc-shaped curved portion 7 a that is directed toward the front surface of the device body 1 at the distal end side by sliding the I-shaped irregular projection 14 of the second cover member 12. As described above, the cover opening angle can be obtained up to 165 degrees. Therefore, in the cover opening angle state up to the first predetermined angle (150 degrees), the folding cover 10 does not break even if an external pressure in the opening direction is further applied.
In addition, when such external pressure disappears, the first cover member 11 is generated by the torque generation of the hinge mechanism 20 described above.
Automatically returns to the first predetermined angle (150 degrees),
Operability is good.

In the first embodiment described above, the hinge mechanism has the D-shaped cam portion 23. However, the same applies when an I-shaped cam having a substantially elliptical cross section is employed. Thus, for example, the first predetermined angle and the second predetermined angle can be changed. further,
Other shapes of cams may be employed.

<Second Embodiment> FIG. 11 shows a relationship between a guide groove and a projection when a cover of a portable telephone as a second embodiment of a portable electronic device to which the present invention is applied is closed. FIG. 11 (A) is a side view showing the guide groove and the projection by broken lines, and FIG. 11 (B) is an enlarged view of a portion indicated by an arrow A in FIG. 11 (A). FIG. 12 shows a state in which the cover of FIG. 11 starts to be opened. FIG.
FIG. 12B is an enlarged view of a portion indicated by an arrow A in FIG. FIG.
FIG. 3A shows the state of the opening process of the cover up to the first predetermined angle following FIG. 12, and FIG.
FIG. 13B is an enlarged view of a portion indicated by an arrow A in FIG. FIG.
4 shows a state where the cover is opened at a first predetermined angle subsequent to FIG. 13, FIG. 14 (A) is a side view, and FIG. 14 (B) is an enlarged view of an arrow A portion of FIG. 14 (A). . FIG. 15 shows FIG.
15 (A) is a side view, and FIG. 15 (B) is a view showing the open state of the cover exceeding the first predetermined angle shown in FIG.
It is an enlarged view of the arrow A part of 5 (A).

In FIGS. 11 to 15, as in the first embodiment described above, reference numeral 1 denotes an apparatus main body, 2 denotes a battery unit, 3 denotes an antenna, 10 denotes a folding cover,
1 is a first cover member, 12 is a second cover member, 13
Is a folding shaft, 8 is a guide groove, 8a is a rising shape portion, 8b is a narrow portion, and 18 is a circular projection. In the second embodiment, the guide groove 8 and the circular projection 18
Since the relationship other than the above is the same as that of the first embodiment, only the guide groove 8 and the circular projection 18 will be described below.

That is, as shown in FIG. 11 to FIG. 15, the guide grooves 8 extend vertically along the longitudinal direction on both side edges of the apparatus main body 1, and the lower end side of the guide grooves 8 is On the front side of the device main body 1, a rising shape portion 8a having a bent shape at an angle of 90 degrees is formed. Further, the guide groove 8 is formed in a narrow portion 8b in which an upper terminal is reduced in width, and a rising shape portion 8 is formed on a lower end side.
The front part of a is formed in the narrow part 8b. Also, the second
On the inner surface of both ends of the cover member 12 opposite to the folding shaft 13, circular protrusions 18 each having a perfect circular cross section that slide by engaging with the guide grooves 8 on both sides of the device body 1.
18 are provided integrally. The diameter of the circular projection 18 is the same as the width of the narrow portion 8b of the guide groove 8.

Next, an example of use of a portable telephone provided with the folding cover 10 having the same configuration as that of the above-described first embodiment, except for the above-described guide groove 8 and circular projection 18, will be described. First, FIG. 11A is a side view showing the relationship between the guide groove 8 and the circular projection 18 in a state where the folding cover 10 is closed. FIG. 11A shows a state in which the folding cover 10 is closed. As shown in FIG. 11B, which is an enlarged view of the portion indicated by arrow A in FIG. 11, the circular projection 18 having a perfect circular cross section is in contact with both side walls of the narrow portion 8b of the upper end of the guide groove 8. There is no backlash of the second cover member 12 with respect to the device body 1, that is, there is no backlash of the folding cover 10.

From the state where the folding cover 10 is closed, as shown in FIGS. 12A and 12B, the opening of the folding cover 10 is started, and the opening angle of the cover is the second predetermined angle (60 degrees). Exceeds the hinge mechanism 2 described above.
When the torque of 0 is generated, the first cover member 11 passes through a 90-degree cover opening angle as shown in FIGS. 13A and 13B, and as shown in FIGS. 14A and 14B, The cover opening angle is up to a first predetermined angle (150 degrees). Even in the use state with the cover opening angle at the first predetermined angle (150 degrees), the circular projection 18 having a perfect circular cross section is formed at the lower end side of the guide groove 8 at the narrow end of the rising shape portion 8a at the front side. Because it is in contact with both side walls of 8b,
There is no backlash of the folding cover 10 with respect to the device body 1.

When closing the cover, the folding cover 10 is started to be closed from the cover opening angle up to the first predetermined angle (150 degrees), and the 90-degree cover shown in FIGS. As shown in FIGS. 12A and 12B, when the opening angle of the folding cover 10 becomes equal to or smaller than the second predetermined angle (60 degrees) through the opening angle, the torque is generated by the hinge mechanism 20 described above. 11A and 11B, the cover is automatically closed.

In the cover opening angle state at the first predetermined angle (150 degrees) as shown in FIGS. 14A and 14B, the lower portion of the guide groove 7 is On the front side of the device main body 1 on the distal end side, a rising shape portion 8a having a bent shape at an angle of 90 degrees is attached to the second cover member 1.
The sliding of the circular projection 18 of FIG.
As shown in (A) and (B), the cover opening angle is 1
Obtained up to 65 degrees. Therefore, the first predetermined angle (150
In the cover opening angle state up to (degree), the folding cover 10 and the like will not be broken even if an external pressure in the opening direction is further applied. In addition, when such external pressure disappears, the first cover member 11 automatically returns to the first predetermined angle (150 degrees) due to the generation of the torque of the hinge mechanism 20 described above.

<Third Embodiment> FIG. 16 shows a structure of a lock release means in a state where a cover of a portable telephone is closed as a third embodiment of a portable electronic device to which the present invention is applied. It is a top view of an internal see-through state. In FIG. 16, similarly to the first embodiment described above, 1 is an apparatus main body, 3 is an antenna, 4 is a speaker sound emission hole, 5 is a microphone hole, 10 is a folding cover, and 11 is a first cover. Element,
12 is a second cover member, 13 is a folding shaft, 16 is an arc-shaped notch, 30 is an unlocking means, 31 is an external operation button, 32 is a slide plate, 33 is a swing plate, 34 is a support shaft, 35 is an engagement piece, 36 is a slide plate, 37 is a connection piece, 38 is a lock pin, 39 is a coil spring, 40 is a hinge mechanism (hinge unit), 41 is a fixed shaft, and 42 is an opening spring. In the third embodiment, since the configuration other than the hinge mechanism 40 and the lock release means 30 is the same as that of the first embodiment described above, the lock release means 30 and the hinge mechanism (hinge unit) will be described below.
Only 40 will be described.

The lock release means 30 is constructed inside the main body 1, and as shown in FIG.
An external operation button 31 protruding from one side of the device, a slide plate 32, a rocking plate 33, a support shaft 34, an engagement piece 35 incorporated in the device body 1 so as to interlock with the pressing operation of the external operation button 31 It comprises a slide plate 36, a connecting piece 37, a lock pin 38 and a coil spring 39. That is,
The external operation button 31 is assembled so as to be operable to be pushed on the right side in the figure of the device main body 1. Slide plate 3
2 slides to the left in the figure by pushing the external operation button 31, and pushes the upper end of the swinging plate 33 to the left in the figure.
The swing plate 33 swings counterclockwise in the drawing with the support shaft 34 in the middle as a fulcrum, as shown by the phantom line, and the lower end pushes the engagement piece 35 to the right in the drawing. This engagement piece 3
When the slide plate 36 integrated with the slide plate 5 slides to the right in the figure, the lock pin 38 integrated with the slide plate 36 via the connecting piece 37 also moves to the insertion hole 1 of the first cover member 11.
At 7, the user slides simultaneously to the right in the figure.

As shown, the lock pin 38 is inserted into the insertion hole 17 with the folding cover 10 closed.
The first cover 11 is fixed to the fixed shaft 41 fixed to the main body 1 of the hinge mechanism 40 on the right side in FIG. The locking state is set so as not to rotate by the urging force of the opening spring 42. Therefore, the closed state of the folding cover 10 is maintained in the locked state.
Here, the pair of left and right hinge mechanisms 40, 40 has a different configuration from the hinge mechanism 20 of the first embodiment described above, and forms biasing means using a fixed shaft 41 and a torsion coil spring on the fixed shaft 41. An opening spring 42 is provided.
That is, the fixed shaft 41 has its square fixed portion inserted and fixed in the square hole of the device main body 1, and the opening spring 42 arranged on the outer periphery of the fixed shaft 41 fixes one end of the fixed shaft 41 to the fixed shaft 41. The other end is fixed to the first cover member 11. According to such a hinge mechanism 40, when the external operation button 31 is pressed while the folding cover 10 is closed, the locked state by the lock pin 38 is released, and the left and right opening springs 42, By the urging force of 42, the folding cover 10 pops up and opens at a stretch to the above-described first predetermined angle (150 degrees).

Then, prior to opening the folding cover 10, the external operation button 31 is pressed and operated. By pressing the external operation button 31, the slide plate 3 is pressed.
2. As described above, when the lock pin 38 slides to the right side in the drawing against the urging force of the coil spring 39 via the swinging plate 33, the engagement piece 35, the slide plate 36, and the connection piece 37, The locked state with the first cover member 11 is released. Accordingly, as soon as the external operation button 31 is pressed, the folding cover 1 is popped up by the urging force of the left and right opening springs 42 and 42 to a first predetermined angle (150 degrees).
0 can be opened at a stretch.

When the folding cover 10 is opened, the push on the external operation button 31 may be released. Further, when the folding cover 10 is closed, as described above, the lock pin 38 is squarely engaged with the end surface of the insertion hole 17 on the right side in the drawing and the locking state where the folding cover 10 cannot be opened, as described above. Becomes

<Fourth Preferred Embodiment> FIG. 17 shows a portable telephone as a fourth preferred embodiment of a portable electronic device to which the present invention is applied. It is the side view shown. In FIG. 17, similar to the first embodiment described above, 1 is a device main body, 2 is a battery unit, 3 is an antenna, 7 is a guide groove, 7a is a curved portion, 10 is a folding cover, and 11 is a folding cover. A first cover member, 12 is a second cover member, 13 is a folding shaft, 9 is a microphone, and 19 is a microphone hole. The second embodiment is the same as the first embodiment except for the relationship between the microphone 9 and the microphone hole 19, so that only the microphone 9 and the microphone hole 19 will be described below.

That is, as shown in FIG. 17, first, the microphone 9 is provided on the inner surface of the first cover member 11 near the folding shaft 13. Then, the second cover member 12
As shown in the figure, a microphone hole 19 penetrating through the front and back surfaces of the second cover member 12 corresponding to the position of the microphone 9 in a state where the folding cover 10 is folded as shown in FIG. Has formed.

By using such a relationship between the microphone 9 and the microphone hole 19, as shown in the figure, the microphone 9 provided on the first cover member 11 in the use state of the portable telephone having the folding cover 10 opened and folded. In addition, sound can be sensed through the microphone hole 19 of the second cover member 12 overlaid thereon. In the fourth embodiment,
Although the description has been given by applying the present invention to the mobile phone according to the first embodiment, it goes without saying that the present invention is similarly applicable to the mobile phone according to the second embodiment.

In each of the above embodiments,
Although the mobile phone is used, the present invention is not limited to this, and may be any mobile electronic device including other mobile communication devices. In addition, the configuration of the hinge mechanism and the like are also arbitrary, and it goes without saying that the specific detailed structure and the like can be appropriately changed. For example, the guide groove may be provided at a side edge on the front side of the device main body.

[0051]

As described above, according to the portable electronic device of the first aspect of the present invention, the cover is composed of two foldable members. The advantage is that the cover is opened at a predetermined angle by the bias of the hinge mechanism, so that the operability is good.

According to the portable electronic device of the present invention, when the opening angle of the first cover member is set to be equal to or less than the second predetermined angle smaller than the first predetermined angle, the cover is biased by the urging means. Since the shutter is automatically closed, an advantage that operability is further improved is obtained in addition to the effect obtained by the first aspect of the present invention.

According to the third aspect of the present invention, the first cover member is opened more than the first predetermined angle by the shape of the guide groove in which the projection of the second cover member slides. In addition to the effects obtained by the invention according to claim 1 or 2, the cover and the like are not broken even if an external pressure in the opening direction is further applied while the first cover member is opened at the first predetermined angle. Such advantages can be obtained.

According to the portable electronic device of the present invention, the first cover member is opened more than the first predetermined angle and the first cover member is opened. Even if external pressure is applied in the direction in which the cover is further opened in the state where the cover is opened at the first predetermined angle, the cover or the like is not broken.
Automatically returns to the predetermined angle, an advantage that operability is further improved is obtained in addition to the effect obtained by the invention according to any one of claims 1 to 3.

According to the portable electronic device of the fifth aspect of the present invention, the locked state in which the cover is closed can be released by operating the external operation button, so that the portable electronic device can be obtained by the invention of any one of the first to fourth aspects. In addition to the effect, there is obtained an advantage that the operation when opening the cover is facilitated.

According to the portable electronic device of the present invention, when the cover is closed, the projections having a different cross section come into contact with both side walls of the guide groove. In addition to the effect obtained by the invention of (1), there is obtained an advantage that rattling of the cover in the closed state is eliminated.

According to the portable electronic device of the present invention, in the state where the cover is closed, the projections are in contact with both side walls of the guide groove having the same width as the diameter thereof. In addition to the effects obtained by the invention described in
An advantage is obtained in that the rattle of the cover is eliminated.

According to the portable electronic device of the present invention, since the microphone provided on the cover can detect the sound, in addition to the effects obtained by the invention according to any one of claims 1 to 7, And an advantage that it can be used as a portable communication device.

[Brief description of the drawings]

FIG. 1 is a plan view showing a mobile phone as a first embodiment of a mobile electronic device to which the present invention is applied, with a cover closed.

FIG. 2 is a side view of the mobile phone with the cover of FIG. 1 closed.

FIG. 3 is a plan view showing a state in which a cover of the mobile phone of FIG. 1 is opened to a first predetermined angle.

FIG. 4 is a side view of the mobile phone with the cover of FIG. 3 opened.

5A and 5B show a hinge mechanism (hinge unit) for connecting the main body and the first cover member, wherein FIG.
(B) is a view showing the state of the cover opening angle equal to or less than a second predetermined angle by breaking the cam portion along the line BB of FIG. (A), and (C) is the same as FIG. FIG. 4D is a view showing the state of the cover opening angle exceeding the second predetermined angle and not more than the first predetermined angle, and FIG. 4D is the same as FIG.
(E) is a diagram showing a cover opening angle state exceeding a first predetermined angle, similarly to FIG. (B).

6A and 6B show a relationship between a guide groove and a projection in the mobile phone in a state where a cover of FIG. 1 is closed, wherein FIG. 6A is a side view showing the guide groove and the projection by a broken line, and FIG. It is an enlarged view of the arrow A part of A).

FIG. 7 shows a state in which the cover of FIG. 6 starts to open,
(A) is a side view, and (B) is an enlarged view of an arrow A part in FIG. (A).

8A and 8B show a state in which the cover is being opened up to a first predetermined angle following FIG. 7; FIG. 8A is a side view, and FIG. 8B is an enlarged view of an arrow A portion in FIG. .

9A and 9B show a state in which the cover is opened at a first predetermined angle subsequent to FIG. 8; FIG. 9A is a side view, and FIG. 9B is an enlarged view of an arrow A part in FIG.

10A and 10B show an open state of the cover exceeding a first predetermined angle shown in FIG. 9; FIG. 10A is a side view, and FIG. 10B is an enlarged view of an arrow A portion in FIG. .

11A and 11B show a relationship between a guide groove and a projection in a state in which a cover of a mobile phone as a second embodiment of a mobile electronic device to which the present invention is applied, and FIG. Is shown by a broken line, and (B) is an arrow A in FIG.
It is an enlarged view of a part.

FIGS. 12A and 12B show a state where the cover of FIG. 11 starts to be opened, wherein FIG. 12A is a side view, and FIG. 12B is an enlarged view of an arrow A portion in FIG.

13A and 13B show a state in which the cover is being opened up to a first predetermined angle, following FIG. 12, wherein FIG. 13A is a side view, and FIG.
FIG. 3 is an enlarged view of an arrow A portion in FIG.

14A and 14B show a state in which the cover is opened at a first predetermined angle following FIG. 13; FIG. 14A is a side view, and FIG.
It is an enlarged view of the arrow A part of.

15A and 15B show an open state of the cover exceeding a first predetermined angle shown in FIG. 14, wherein FIG. 15A is a side view, and FIG. 15B is an enlarged view of an arrow A portion in FIG. .

FIG. 16 is a plan view of an internal see-through state showing a configuration of an unlocking unit in a state where a cover of a mobile phone is closed as a third embodiment of a mobile electronic device to which the present invention is applied.

FIG. 17 is a side view showing a mobile phone as a fourth embodiment of a mobile electronic device to which the present invention is applied, in which an open cover is partially cut away.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 3 Antenna 4 Speaker sound emission hole 5 Microphone hole 6 Display part 7 Guide groove 7a Curved part 8 Guide groove 8a Rise shape part 8b Narrow part 9 Microphone 10 Folding cover 11 First cover member 12 Second cover member DESCRIPTION OF SYMBOLS 13 Folding shaft 14 Irregular projection 15 Concave notch 16 Arc-shaped notch 18 Circular projection 19 Microphone hole 20 Hinge mechanism (hinge unit) 21 Fixed axis 23 D-shaped cam part 25 Leaf spring (biasing means) 30 Lock release means 31 External Operation button 38 Lock pin 39 Coil spring 40 Hinge mechanism (hinge unit) 41 Fixed shaft 42 Opening spring

Claims (8)

[Claims] 1. A portable electronic device having a cover that can be opened and closed with respect to a main body, wherein the cover is composed of two cover members that are foldably connected, and a first cover of the two cover members. The member is connected to the main body through a hinge mechanism that urges the cover member to open at a first predetermined angle with respect to the main body, and the second cover member has a longitudinal side of the main body. A portable electronic device, wherein a projection is formed which engages with a guide groove formed on an edge and slides along the guide groove when the cover member is opened and closed. The hinge mechanism closes the first cover member when the open angle of the first cover member is equal to or less than a second predetermined angle smaller than the first predetermined angle. When the opening angle of the first cover member is larger than the second predetermined angle, the first cover member is urged to open to the first predetermined angle. The portable electronic device according to claim 1, further comprising an urging unit. 3. The portable electronic device according to claim 1, wherein the guide groove is formed in a shape that allows the first cover member to open more than the first predetermined angle. . 4. The hinge mechanism is configured to return the first cover member to the first predetermined angle when the first cover member is opened more than the first predetermined angle. 2. The apparatus according to claim 1, further comprising a biasing means for biasing.
4. The portable electronic device according to any one of items 1 to 3. 5. The portable electronic device according to claim 1, further comprising a lock release means for releasing a locked state in which the cover is closed by operating an external operation button. 6. The portable device according to claim 1, wherein the projection has an irregular cross-sectional shape, and comes into contact with both side walls of the guide groove when the cover is closed. Electronics. 7. The guide groove, wherein a width of a portion where the protrusion is located when the cover is closed is the same as a diameter of the protrusion, and a width of another portion is larger than a diameter of the protrusion. The portable electronic device according to any one of claims 1 to 5, wherein: 8. The portable electronic device according to claim 1, wherein a microphone is provided on the cover member.