JP2003188966A - Foldable portable telephone - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To smoothly open a foldable portable telephone without user's fingers touching the side of a display side case of the portable telephone which automatically opens by a button operation. <P>SOLUTION: The portable telephone is consists of an operation key side case which contains operation keys, a display side case which contains the display, a hinge which joints the operation key side case and the display side case, and covers 54 and 55 which project from the key side case near the hinge and cover both sides of the display. A lock release button 56 is provided on the cover 54, which is operated when the portable telephone is opened. When the user holds the foldable portable telephone in the hand and pushes the lock release button 56, the users' fingers touch the covers 54 and 55 but never touch the sides of the display side case. Both sides 52a and 52b of the display side case 52 are clear of the user's hand and the display side case 52 smoothly opens. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foldable mobile phone, and more particularly to a foldable mobile phone which is folded when being carried and which is automatically opened by operating a button when making a call.

Structurally, portable telephones are classified into foldable portable telephones, which are foldable structures, and so-called rod-type portable telephones, which are not foldable structures. Folding type mobile phones are classified into a structure that is manually opened and a structure that is automatically opened by operating a button.

The foldable mobile phone is much smaller than the stick type mobile phone in the folded state, and is therefore convenient to carry. In addition, the mobile phone is often used when the user is performing some other work, and one hand is often occupied during this work. A mobile phone with a structure that can be opened automatically by operating a button can be opened with one hand.
Easy to use. So, the foldable mobile phone,
It is desirable to have a structure that can be operated with only the remaining one hand, that is, a structure that is automatically opened by operating a button.

[0004]

2. Description of the Related Art FIGS. 1A and 1B show a conventional example of a cellular phone 10 having an automatically opened structure. This mobile phone 10 includes an operation key side casing 11 and a display unit side casing 12.
And a hinge 13 that connects the two. The operation key side housing 11 has operation keys 14 and a microphone 15.
The display unit side body 12 includes a liquid crystal panel 16 as a display unit,
It has an antenna 17 and a speaker 18. Hinge 13
A hinge module 19 is incorporated therein. By the hinge module 19, the display unit side body 12 is spring-biased in the opening direction with respect to the operation key side body 11. A button 20 is provided near the hinge 13 on one side surface 11 a of the operation key side casing 11.

Normally, in the mobile phone 10, as shown in FIG. 1 (A), the display side housing 12 is closed and the lock claw 2 is inserted.
It is in a closed state in which it is connected to the operation key side casing 11 by 1.

When making a call, the folding portable telephone 10 closed by the user is placed on the operation key side casing 1 thereof.
1 is placed on the palm of the left hand 30 and is grasped by the left hand 30, and the button 20 is pushed by the thumb 31 of the grasped left hand 30. When this operation is performed, the lock claw 21 is moved and retracts via the turning lever 22, the lock with respect to the display unit side body 12 is released, and the spring inside the hinge module 19 causes the display unit side body 12 to operate. When rotated with respect to the side casing 11,
It is opened as shown in (B). As a result, the user can talk by placing the mobile phone 10 on his ear.

[0007]

Since the portable telephone 10 is small, the folded portable telephone 10 in the closed state is held by the left hand 30 and the button 31 is pushed by the thumb 31. It is easy for a part of 31 to come into contact with one side surface 12a of the display unit side body 12 or with the other finger 32 to come into contact with the side surface 12b on the opposite side of the display unit side body 12.

In this state, the side surface 1 of the display unit side body 12 is
The finger of the left hand 30 in contact with 2a and 12b becomes a resistance, and the display unit side body 12 cannot be opened smoothly.

Therefore, an object of the present invention is to provide a foldable mobile phone which solves the above problems.

[0010]

According to a first aspect of the present invention, there is provided a fixed-side casing, a movable-side casing foldable with respect to the fixed-side casing, and the movable-side casing with respect to the fixed-side casing. In a foldable mobile phone having an operation unit that changes the side casing from the closed state to the opened state, the operation unit is provided in a cover portion that covers a side surface of the movable side casing.

By providing the cover portion, when the user holds the folding mobile phone, the fingers of the hand hit the cover portion and do not come into contact with the side surface of the movable side casing.
Therefore, the movement of the movable-side housing is not restricted by the fingers of the user's hand, and the operation of opening the movable-side housing is performed smoothly.

According to a second aspect of the present invention, in the folding mobile phone according to the first aspect, the cover portion is provided so as to cover the left and right side surfaces of the movable side casing.

Compared to the case where the cover is provided so as to cover one side surface of the movable-side housing, the fingers of the user's hand touch the side surface of the movable-side housing when the user holds the folding mobile phone. It is possible to achieve more surely not to do it.

According to a third aspect of the present invention, in the folding mobile phone according to the first or second aspect, the cover portion is formed so as to project from the fixed side casing.

No separate parts are required for the cover,
It can be configured without increasing the number of parts.

According to a fourth aspect of the present invention, in the foldable mobile phone according to the first aspect, at least a part of an operation mechanism interlocking with the operation of the operation section is incorporated inside the cover section. It is a thing.

Since at least a part of the operating mechanism is incorporated by utilizing the space inside the cover portion, the operating mechanism can be incorporated efficiently, and the folding type portable telephone can be made compact.

According to a fifth aspect of the present invention, in the folding portable telephone according to the fourth aspect, the operating mechanism is a fulcrum, a force point,
The lever has a point of action, and the operating portion is a force point.

By adopting a mechanism utilizing the lever principle, it is possible to reduce the operating force of the operating portion.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION [First Embodiment] FIG.
3B, 3A, 3B, and 3C show a foldable mobile phone 50 having a structure that is automatically opened when a lock release button is pressed according to the first embodiment of the present invention. Figure 2 (A)
3 and FIG. 3 show a state of being folded and carried. The left hand 30 shown by the chain double-dashed line shows a state in which the mobile phone 50 that is folded is held and unlocked to open it. FIG. 2B shows a state during an opened call. The left hand 30 shown by the chain double-dashed line is the opened mobile phone 5.
A state in which 0 is held is shown. X1 and X2 are hinges 53
Axis direction, Y1, Y2 are the longitudinal direction of the mobile phone 50,
Z1 and Z2 are the thickness direction of the mobile phone 50.

As shown in FIGS. 2 and 3, the portable telephone 5
Reference numeral 0 has an operation key side case 51 which is a fixed side case, a display section side case 52 which is a movable side case, and a hinge 53 which connects the two.

The operation key side casing 51 has covers 54, 5
5, a lock release button 56, an operation key 57, a microphone 58, and the like. The display unit side body 52 has a liquid crystal panel 59 as a display unit, an antenna 60, a speaker 61, and the like.

The display-side casing 52 is locked and closed as described later, and is spring-biased in the opening direction with respect to the operation key-side casing 51 as described later. .

Normally, as shown in FIG. 2A, the mobile phone 50 is in a folded state in which the display unit side body 52 is closed and locked. When making a call,
The user puts the folding mobile phone 50 in the closed state on the palm of the left hand 30 with the operation key side casing 51 of the left hand 3
The lock release button 56 is pressed with the thumb 31 of the left hand 30 which is gripping with 0. When this operation is performed, the display unit side body 5
2 is unlocked, the display unit side body 52 is rotated in the A1 direction with respect to the operation key side body 51 by the spring in the hinge 53, and is opened as shown in FIG. 2B. As a result, the user can place a call by putting the mobile phone 50 on his ear.

FIG. 4 and FIG. 5 are cross-sectional views of the mobile phone 50 in the folded state, taken along the XZ plane indicated by the symbols IV and V, respectively. FIG. 6 is an exploded view of the hinge 53 and the lock mechanism of the mobile phone 50 in the opened state. FIGS. 7A, 7B, and 7C are diagrams showing the hinge 53 and the lock mechanism of the mobile phone 50 in the opened state. 8 (A), (B),
(C) is a figure which shows a lock release button member. Figure 9
(A), (B), (C), FIGS. 10 (A) to (D), and FIGS. 11 (A) to (D) are cross-sectional views taken at different positions in FIG. 7 (B).

The operation key side casing 51 has a structure in which a printed circuit board 64 on which electronic components are mounted is housed in a box body which is composed of a box-shaped housing body 62 and a cover 63. Similarly, the display unit side body 52 has a printed circuit board 6 in which electronic components are mounted in a box body which is composed of a box-shaped housing body 65 and a cover 66.
It is a configuration in which 7 is set.

Next, the cover portions 54 and 55 will be described.

As shown in FIGS. 1 to 7, the cover portion 54
Is X2 of the operation key side casing 51 (housing body 62)
Of the side surface 51a on the direction side, which protrudes in the Z1 direction and the Y1 direction from a portion near the hinge 53, and X2.
Z that bulges in the direction of Z
One-direction projecting portion 54z1 and Y projecting in the Y1 direction
It has a one-way projecting portion 54y1. Overhang part 54z
1 covers the side surface 52a on the X2 direction side of the display unit side body 52 of the mobile phone 50 in the folded state. A cover member 7 which will be described later and is an inner surface of the protruding portion 54z1.
The surface 74a of No. 4 and the side surface 52a of the display unit side body 52 are not in contact with each other, and as shown in FIGS. 4 and 5, a slight gap 68 exists between them.

The cover portion 55, like the cover portion 54, is X1 of the operation key side casing 51 (housing body 62).
Of the side surface 51b on the direction side, which projects from the vicinity of the hinge 53 in the Z1 direction and the Y1 direction, and X1.
Z that bulges in the direction of Z
One-direction projecting portion 55z1 and Y projecting in the Y1 direction
It has a one-way projecting portion 55y1. Overhanging part 55z
1 covers the side surface 52b of the display unit side body 52 of the mobile phone 50 in the folded state on the X2 direction side. The inner wall 55a of the projecting portion 54z1 and the side surface 52b of the display unit side body 52 are not in contact with each other, and as shown in FIGS. 4 and 5, there is a slight gap 69 therebetween.

Therefore, when making a call, the user holds the foldable portable telephone 50 in the closed state with the operation key side casing 51 placed on the palm of the left hand 30 and grasped by the left hand 30 and locked by the thumb 31 of the left hand 30. When the release button 56 is pressed, the part of the thumb 31 protruding from the lock release button 56 comes into contact with the cover part 54, and the side surface 52 of the display unit side body 52.
No contact with a occurs. Further, the other finger 32 is exclusively in contact with the cover portion 55 on the opposite side, and the display portion side housing 52
No contact with the side surface 52b of the. For this reason, the side surfaces 52a and 52b on both sides of the display unit side body 52 have the left hand 30
With respect to the display unit side body 52, the display unit side body 52 is not restricted from rotating in the opening direction by a part of the left hand 30, and the display unit side body 52 starts rotating smoothly. The operation of opening the display unit side body 52 is smoothly performed.

Next, the lock mechanism 70 and the lock release operation mechanism 77 will be described.

Here, the lock mechanism 70 and the lock release operation mechanism 77 are closely related to each other and will not be described separately.
It will be explained together.

As shown in FIGS. 6 and 7, the cover portion 54 of the side surface 51a on the X2 direction side of the operation key side casing 51 has a space 54a inside, and the lock mechanism 70 and the unlock operation mechanism. 77 is incorporated by utilizing this space 54a.

In the space 54a inside the cover 54,
A lock member 71, a shaft member 72, a compression coil spring 73, and a cover member 74 shown in FIG. 8 are incorporated.

The cover member 74 has the Y1 direction end portion 74c locked between the end of the operation key side casing 51 and the cover portion 54, and the Y2 direction end side is fixed by a screw 75. Covers the opening on the X1 direction side of the space 54a.

The lock member 71 includes a bearing portion 71a, arm portions 71b and 71c extending to both sides of the bearing portion 71a,
It is composed of a hook portion 71d at the tip of the arm portion 71b and a lock release button 56 at the tip of the arm portion 71c. Unlock button 56
Is a part of the lock member 71.

The lock member 71 covers the cover 54 with Z1-Z.
The bearing portion 71 is formed by the shaft member 72 penetrating in two directions.
a is supported and extends in Y1-Y2, the lock release button 56 is fitted to the side opening 54b of the cover 54 and exposed to the outside, and the hook 71d is covered. The cutout portion 74b of 74 projects in the X1 direction. The lock member 71 is biased in the B1 direction by a compression coil spring 73 between the lock release button 56 and the cover member 74.

The lock release button 56 is the axis line CL of the hinge 53.
53, a position deviated in the Y2 direction by a, that is, the hinge 5
It is arranged at a position near the hinge 53 instead of the position of 3.

The hook portion 71d projects in the X1 direction at a position slightly above the upper surface of the operation key side casing 51 in the Z1-Z2 direction. On the side surface 52a of the display unit side body 52,
At the position where the hook portions 71d face each other in the closed state, the recess 5
2a1 is formed. The hook portion 70d is the recess 52a1.
The display-side housing 52 is attached to the housing shown in FIG.
It is locked in the closed state shown in (A).

When the lock release button 56 is pressed, the lock member 71 is rotated in the B2 direction, the hook portion 71d is retracted into the space portion 54a, is disengaged from the recess 52a1, and the lock is released.

Here, the bearing 71a is the fulcrum, the lock release button 56 is the force point, and the hook 71d is the point of action. If the length of the arm portion 71b is L1 and the length of the arm portion 71c is L2, then L1 <L2. Therefore, by the lever principle, the force for pressing the lock release button 56 is reduced, and the lock release operation is lighter than the conventional force, and preferably about 300 gr.

The lock mechanism 70 has an arm-shaped lock member 71 and has a relatively bulky structure.
The mobile phone 50 is accommodated in the space 54a inside the cover 54, and the size of the mobile phone 50 is small.

The hook portion 70d of the lock member 71, the concave portion 52a1 of the display unit side body 52, and the compression coil spring 73.
Constitute the locking mechanism 70. The bearing portion 71a of the lock member 71 and the arm portion 7 extending to both sides from the bearing portion 71a.
1b, 71c and a lock release button 56 at the tip of the arm 71c
And constitute the unlocking operation mechanism 77.

Next, the hinge 53 will be described.

As shown in FIGS. 6, 9, 10, and 11, the housing main body 65 of the display unit side body 52 has a cylindrical portion 65a and a semi-cylindrical portion in order from the end side in the X2 direction toward the X1 direction. 65b, a cutout portion 65c, and a cylindrical portion 65d. The housing body 62 of the operation key side body 51 is X2
The projecting portion 54y1, the cutout portion 62a, and the semi-cylindrical portion 62 of the cover portion 54 are arranged in this order from the direction end side in the X1 direction.
b, cutout portion 62c, protruding portion 55y of cover portion 55
Has 1. The cylindrical portion 65a and the semi-cylindrical portion 65b are fitted in the cutout portion 62a, and the semi-cylindrical portion 62b is cut in the cutout portion 65a.
The cylindrical portion 65d fits in the notch portion 62c. In addition, the semi-cylindrical portion 66 a of the cover 66 is
The combined cylindrical portion 80 is formed so as to face the b, and the cover 6
The third semi-cylindrical portion 63a faces the semi-cylindrical portion 62b to form a combined cylindrical portion 81. The combination cylindrical portion 80 and the combination cylindrical portion 81 are adjacent to each other and communicate with each other. A shaft member 82 and a torsion coil spring 83 are fitted in the cylindrical portion 65a. The square shaft portion 82a of the shaft member 82 is fitted into the square hole 54c of the projecting portion 54y1 and is prevented from rotating. The torsion coil spring 83 is fitted into the shaft member 82 and is housed in the cylindrical portion 65a, the end portion 83a on the X2 direction side is locked to the shaft member 82, and the end portion 83 on the X1 direction side.
When b is twisted clockwise when viewed in the X1 direction, it is engaged with the inside of the cylindrical portion 65a. An E-shaped retaining ring 84 is fitted and fixed to the tip end side of the square shaft portion 82a, and a cap 85 is fitted and fixed to the opening 54d of the projecting portion 54y1.

A cylindrical damper unit 86 is incorporated in the cylindrical portion 65d. Damper unit 86
The case 86a is fixed to the cylindrical portion 65d. The angular shaft portion 86b of the damper unit 86 is fitted into the angular hole 55b of the projecting portion 55y1 and is prevented from rotating. Square shaft 86
An E-shaped retaining ring 87 is fitted and fixed to the front end side of a, and a cap 88 is fitted to the opening 55c of the overhang portion 55y1.

When the mobile phone 50 is folded as shown in FIGS. 2A and 3, the torsion coil spring 83 is in a twisted state, and the display unit side body 52
Is in a state of being biased in the A1 direction with respect to the operation key side casing 51 by the torsion spring force of the torsion coil spring 83. Therefore, when the lock release button 56 is pressed to release the lock, the display unit side body 52 is rotated in the A1 direction by the restoring force of the torsion spring of the torsion coil spring 83.
At this time, due to the action of the damper unit 86, the display unit side body 52 rises slowly, and the impact when the final state shown in FIG.

A coaxial flexible cable 100 having a coaxial cable structure passes through the hinge 53. As shown in FIG. 6, FIG. 9, FIG. 10 (D), and FIG. 11 (A),
One end of the flexible cable 100 is the display unit side housing 5
2 is connected to the connector 78 on the printed circuit board 67,
The other end is connected to the connector 79 on the printed circuit board 64 in the operation key side housing 51, passing through the hinge 53 in the middle. As a result, the printed circuit board 67 in the display unit side body 52 and the printed circuit board 64 in the operation key side body 51 are electrically connected.

At the location of the hinge 53, the flexible cable 100 forms a loop 101 of 360 degrees counterclockwise when viewed from the X2 side from the display unit side body 52 side toward the operation key side body 51. There is. This loop 101 is
It is housed inside the adjacent combined cylindrical portions 80 and 81. Loop 10 of flexible cable 100
The portion forming 1 urges the turning force in the A1 direction for opening the display unit side body 52 with respect to the operation key side body 51 by the elastic force of the flexible cable 90 itself. That is, The flexible cable 100, which is installed to form the loop 101 at the hinge 53, acts to assist the torsion spring force of the torsion coil spring 83.

Therefore, as the torsion coil spring 83,
The torsional spring force used is smaller than that in the usual case by the amount of the turning force obtained by the flexible cable 100 incorporated as described above.

Next, the coaxial type flexible cable 100 will be described.

12, 13 and 14 show the structure of the coaxial flexible cable 100.

The coaxial type flexible cable 100 is of a spacer insertion type and has the inner conductor pattern 10
2, a spacer portion 103 having 2 in the center, a base 104 that encloses the spacer portion 103 from above and below and an inner upper cover lay 105, an upper cover lay 106 and a lower cover that vertically cover the base 104 and the upper cover lay 105. Ray 107 and reinforcing plates 108, 1 for reinforcing both ends.
It consists of 09.

The spacer portion 103 has a structure in which the lower spacer 110 having the internal conductor pattern 102 on the upper surface and the upper spacer 111 overlap each other.

The base 104 has a strip-shaped pattern 104a in the center of the lower surface and a plurality of signal transmission patterns 104b on both sides of the upper surface. Each signal transmission pattern 104b
Has terminals 104c and 104d at both ends thereof. Further, internal conductor patterns 104e and 104f are formed on both ends of the center of the upper surface of the base 104. Each of the internal conductor patterns 104e and 104f has a terminal 104 at its end.
g, 104h.

The upper cover lay 105 has a band-shaped pattern 105a at the center of the upper surface. Upper cover lay 105
Has the same width as the base 104, and the spacer portion 103
The inner conductor patterns 104e and 104f and the signal transmission pattern 104b are covered.

The internal conductor pattern 102 and the internal conductor pattern 104e are connected by the through hole 110 in a state in which the base 104 and the upper cover lay 105 wrap the spacer portion 103 from above and below, and the internal conductor pattern 102 and the internal conductor pattern 102 are connected. The internal conductor pattern 104f is connected by the through hole 111. In addition, the through hole rows 11 are formed along both sides of the internal conductor pattern 102.
2, 113. The through-hole array 112 has a configuration in which a plurality of through-holes 112a, which penetrate the first upper cover lay 105 and the base 104 and electrically connect the strip-shaped pattern 105a and the strip-shaped pattern 104a, are arranged at a pitch p. . Similarly, through-hole row 113
Is a configuration in which a plurality of through holes 113a penetrating the upper cover lay 105 and the base 104 and electrically connecting the strip pattern 105a and the strip pattern 104a are arranged at a pitch p. Through holes 112a, 113
The pitch p of a is determined by the frequency of the high-frequency signal transmitted through the internal conductor pattern 102, and is a value such that electromagnetic waves do not leak between adjacent through holes.

The upper cover lay 106 is the upper cover lay 1
No. 05 strip-shaped pattern 105a is covered. Lower cover lay 10
7 covers the strip-shaped pattern 104a of the base 104.

The reinforcing plate 108 made of synthetic resin is the base 10
4 is fixed to the lower surface on one end side, and the terminals 104c, 1
04g is reinforced. Another synthetic resin reinforcement plate 109
Is fixed to the lower surface on the other end side of the base 104, and reinforces the terminals 104d and 104h.

The patterns 102 and the like described above are made of copper.
The upper spacer 111 is made of Teflon (registered trademark).
Base 104, upper cover lay 105, upper cover lay 1
06, the lower cover lay 107, and the lower spacer 110 are all made of polyimide amide.

Internal conductor patterns 102, 104e, 10
4f constitutes an internal conductor. The lower spacer 110, the upper spacer 111, the base 104, and the portion of the upper cover lay 105 facing the spacers 110 and 111 constitute an internal insulator. Band-shaped patterns 105a, 1
04a and the through hole rows 112 and 113 form an outer conductor. Upper cover lay 106 and lower cover lay 10
7 constitutes the external insulator.

As shown in FIG. 6, with the flexible cable 100 connected to the connectors 78, 79 at both ends and incorporated in the mobile phone 50, the internal conductor patterns 102, 104e, 104f are connected to the antenna 61 from the antenna 61. High frequency signal is transmitted. Flexible cable 10
Since 0 has a coaxial structure, electromagnetic waves are prevented from leaking from the flexible cable 100 to the outside.

[Other Embodiments] FIG. 15 shows a foldable mobile phone 50A according to a second embodiment of the present invention. The foldable mobile phone 50A differs from the mobile phone 10 shown in FIGS. 1A and 1B in the side surface 11 of the operation key side housing 11A.
The difference is that a convex portion 150 is provided in a portion of a near the hinge 13, and a button 20 for unlocking is provided here. The convex portion 150 is the side surface 12 a of the display unit side body 12.
It is formed so as to project from.

FIG. 15A shows a state of being folded and carried. The left hand 30 shown by the chain double-dashed line shows a state in which the folded and opened mobile phone 50A is held and opened. FIG. 15B shows a state during an opened call.

Since the button 20 is provided on the convex portion 150, when the button 20 is pressed with the thumb 31 in the state shown in FIG. 15A, the portion of the thumb 31 protruding from the button 20 is exclusively the convex portion. It hits 150 and does not contact the side surface 12a of the display unit side body 12. Therefore, the display unit side body 12 starts to rotate smoothly, and the opening operation of the display unit side body 12 is smoothly performed.

FIG. 16 shows a foldable mobile phone 50B according to the third embodiment of the present invention. The foldable mobile phone 50B is a mobile phone 10 shown in FIGS. 1 (A) and 1 (B).
The difference is that a recess 160 is formed in a portion of the side surface 12a of the display unit side body 12B adjacent to the unlock button 20.

FIG. 16A shows a state of being folded and carried. The left hand 30 shown by the chain double-dashed line shows a state in which the folded mobile phone 50B is held and released to open. FIG. 16B shows a state during an opened call.

Since the button 20 is provided on the convex portion 150, when the button 20 is pushed with the thumb 31 in the state shown in FIG. 16A, the tip portion of the thumb 31 protruding from the button 20 is depressed. It enters the portion 160 and does not contact the display unit side body 12B. Therefore, the display unit side body 12B starts to rotate smoothly, and the opening operation of the display unit side body 12B is smoothly performed. 17A and 17B show modifications of the lock mechanism and the lock release mechanism.

The lock release button 56A is provided on the tip side of the arm 121 whose one end is supported by the shaft 120. A pin portion 121a projects in the middle of the arm 121. The arm 121 and the lock release button 56A include the cover 5
It fits in the internal space of 4A.

Housing main body 65 of display unit side housing 52A
Inside the cylindrical portion 65Aa of A, the cylindrical hinge module 1
30 is incorporated. The hinge module 130 is
The shaft portion 131, the disk portion 132 rotatably and axially displaceably supported by the shaft portion 131, the lock portion 133 that locks the disk portion 132 with respect to the shaft portion 131, and the disk portion 132. A1 to the shaft 131
It has a torsion coil spring 134 for urging the disk portion 132 in the X2 direction and a spring 135 for urging the disk portion 132 in the X2 direction. The shaft portion 131 is fixed to the operation key side casing 51A. The disk portion 132 is incorporated in the cylindrical portion 65Aa so as to rotate integrally in the A1 and A2 directions and be movable in the X1 and X2 directions.

When the lock release button 56A is pressed, the pin 12
1a pushes the disk portion 132 in the X1 direction, and the lock portion 1
33 is disengaged, and the disk portion 131 is rotated in the A1 direction by the torsion coil spring 134.
Is also rotated in the A1 direction and opened.

The force with which the pin portion 121a pushes the disc portion 132 is stronger than the force with which the lock release button 56A is pushed by the lever principle. Therefore, the force with which the user presses the lock release button 56A is weak and sufficient.

Next, a modified example of the coaxial type flexible cable 100 in which the loop 101 is formed and incorporated will be shown.

18, 19 and 20 show a coaxial type flexible cable 100A which is a first modification.

The coaxial type flexible cable 100A is
It is a standard type and includes the upper spacer 111 and the upper cover lay 1 in the coaxial flexible cable 100.
This is a structure obtained by omitting 06. 18, FIG. 19 and FIG. 20, parts corresponding to the components shown in FIG. 12, FIG. 13 and FIG.

The coaxial flexible cable 100A is
Spacer 110A with base 104A and upper cover lay 1
It is wrapped with 05A and has a lower cover lay 107A below the base 104A and reinforcing plates 108A and 10A at both ends.
It is a configuration having 9A.

The inner conductor pattern 102A is the base 104.
It is formed on the upper surface of A. A band-shaped pattern 104Aa is formed on the lower surface of the base 104A. Spacer 110A
A band-shaped pattern 105Aa is formed on the upper surface of the. The strip-shaped pattern 104a and the strip-shaped pattern 105Aa are connected by the through hole rows 112A and 113A.

The inner conductor pattern 102A constitutes an inner conductor, the spacer 110A and a part of the base 104 constitute an inner insulator, and the strip patterns 105Aa and 104Aa.
And the through hole rows 112A and 113A constitute an outer conductor, and the upper cover lay 105A and the lower cover lay 107 are formed.
A constitutes the external insulator.

FIG. 21 shows a coaxial flexible cable 140 which is a second modification.

This coaxial type flexible cable 140
Is a configuration in which a thin coaxial cable 142 having a wire diameter of about 1 mm is provided along the center of the upper surface of the flexible cable 141, and the coaxial cable 142 is fixed to the flexible cable 141 with an adhesive tape 143. This coaxial type flexible cable 140 is also incorporated in the foldable mobile phone by forming the loop 101 as described above.

The above-mentioned coaxial cable 142 may be incorporated alone by forming the loop 101 as described above.

[0082]

As described above, according to the invention of claim 1, the fixed side casing, the movable side casing foldable with respect to the fixed side casing, and the fixed side casing are provided. In a folding type mobile phone having an operation unit that changes the movable side casing from the closed state to the open state, the operation unit is provided in a cover portion that covers a side surface of the movable side casing. Therefore, it is possible to prevent the fingers of the user's hand from touching the side surface of the movable-side housing when the user holds the foldable mobile phone and operates the operation unit. Not being restrained by your fingers,
The operation of opening the movable side housing can be performed smoothly.

According to a second aspect of the present invention, in the foldable mobile phone according to the first aspect, the cover portion is provided so as to cover the left and right side surfaces of the movable side casing, and thus the cover portion is provided. When the user holds the folding mobile phone, the fingers of the user's hand are prevented from touching the side surface of the movable-side housing as compared to the case where the part is provided so as to cover one side surface of the movable-side housing. Can be achieved more reliably.

According to a third aspect of the present invention, in the foldable mobile phone according to the first or second aspect, the cover portion is formed so as to project from the fixed-side casing. No separate parts are required, and it can be configured without increasing the number of parts.

According to a fourth aspect of the present invention, in the foldable mobile phone according to the first aspect, at least a part of an operation mechanism interlocking with the operation of the operation section is incorporated inside the cover section. Therefore, at least a part of the operation mechanism is incorporated by utilizing the space inside the cover portion,
Therefore, the operation mechanism can be efficiently incorporated in the folding mobile phone, and the folding mobile phone can be made compact. Also, the fingertips that operate the operating unit are
It is possible to hit the cover portion exclusively so as not to contact the side surface of the movable-side housing.

According to a fifth aspect of the present invention, in the folding portable telephone according to the fourth aspect, the operating mechanism is a fulcrum, a force point,
Since the operating portion has a point of action and the operating portion is a force point, and the lever principle is used, the operating force of the lock release button can be reduced.

[Brief description of drawings]

FIG. 1 is a diagram showing a conventional foldable mobile phone.

FIG. 2 is a diagram showing a foldable mobile phone according to a first embodiment of the present invention.

FIG. 3 is a diagram showing the folding mobile phone of FIG.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

5 is a cross-sectional view taken along the line VV in FIG.

FIG. 6 is an exploded view showing parts of a hinge and a lock mechanism.

FIG. 7 is a view showing parts of a hinge and a lock mechanism.

FIG. 8 is a view showing a lock release button member.

FIG. 9 is a cross-sectional view taken along a different position in FIG. 7B.

FIG. 10 is a cross-sectional view taken along a different position in FIG.

FIG. 11 is a sectional view taken along a different position in FIG.

FIG. 12 is a diagram showing a coaxial flexible cable.

13 is a diagram showing a structure of the coaxial flexible cable in FIG.

FIG. 14 is a cross-sectional view taken along a different position in FIG.

FIG. 15 is a diagram showing a foldable mobile phone according to a second embodiment of the present invention.

FIG. 16 is a diagram showing a foldable mobile phone according to a third embodiment of the present invention.

FIG. 17 is a view showing a modified example of the lock mechanism and the lock release mechanism.

FIG. 18 is a diagram showing a first modification of the coaxial flexible cable.

19 is a diagram showing the structure of the coaxial flexible cable of FIG.

FIG. 20 is a cross-sectional view taken along a different position in FIG.

FIG. 21 is a diagram showing a second modification of the coaxial flexible cable.

[Explanation of symbols]

50, 10A, 10B Folding type mobile phone 51 Operation key side case 52 Display-side housing 53 hinge 54, 55 cover 56 Lock release button 70 Lock mechanism 77 Lock release mechanism 100 coaxial flexible cable 101 loop

Continued front page    F term (reference) 3J105 AA07 AA15 AB50 AC06                 4E360 AB16 BB02 BB12 BB22 BC04                       BC06 BC16 EC11 EC14 ED04                       ED23 GA02 GA46 GA52 GB26                 5K023 AA07 BB11 DD08 GG11 KK01                       LL01 LL06

Claims (5)

[Claims] 1. A fixed-side housing, a movable-side housing foldable with respect to the fixed-side housing, and a fixed-side housing that changes the movable-side housing from a closed state to an open state. A foldable mobile phone having an operation part, wherein the operation part is provided in a cover part that covers a side surface of the movable-side housing. 2. The foldable mobile phone according to claim 1, wherein the cover portion is provided so as to cover the left and right side surfaces of the movable side casing. 3. The foldable mobile phone according to claim 1, wherein the cover portion is formed so as to project from the fixed casing. 4. The foldable mobile phone according to claim 1, wherein at least a part of an operation mechanism interlocking with an operation of the operation section is incorporated inside the cover section. 5. The foldable mobile phone according to claim 4, wherein the operation mechanism has a fulcrum, a force point, and an action point, and the operation portion is a force point, which is a structure utilizing the lever principle. Telephone.