JP4044949B2 - Folding mobile phone - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize a structure capable of being incorporated in a narrow space with respect to a locking/unlocking mechanism of a foldable portable telephone. <P>SOLUTION: The lock/unlocking mechanism 67 for locking and unlocking a flipper 62 in a closed state to a telephone main body 61, is composed of a single locking member 68 and an auxiliary spring member 69. The locking member 68 has an arm portion 68c, a push button portion 68b formed on one end of the arm portion 68c, and a locking claw portion 68a formed on the other end of the arm portion 68c. The auxiliary spring member 69 is a torsion coil spring. <P>COPYRIGHT: (C)2006,JPO&amp;NCIPI

Description

  The present invention relates to a folding mobile phone.

  In general, a so-called foldable mobile phone 10 includes a phone main body 11 and a flipper 12 attached thereto, as shown in FIG. The flipper 13 is supported by the hinge mechanism 12 and rotates in the opening direction indicated by the arrow A1 and in the closing direction indicated by the arrow A2.

  When the cellular phone 10 is not used, the flipper 12 is locked at the closed position P1 and covers the numeric keypad 14 as shown in FIG. When a lock release operation is performed during a call, the flipper 12 is rotated 145 degrees in the A1 direction and held at the open position P2, as shown in FIG.

  In the state shown in FIG. 44B, when the mobile phone 10 is dropped, for example, and a strong force in the direction of the arrow A1 is applied to the flipper 12, the flipper 12 moves as shown in FIG. It rotates to the excessive opening position P3 at the maximum in the A1 direction, and then returns to the opening position P1.

  Therefore, the hinge mechanism 13 is required to satisfy the following requirements.

  (1) When the lock is released, the flipper 12 is automatically rotated from the position P1 in the A1 direction.

  (2) The flipper 12 is held at the position P2.

  (3) Allowing the flipper 12 to rotate to the position P3.

  (4) Return the flipper 12 that has rotated in the direction of the arrow A1 beyond the position P2 to the position P2.

  The hinge mechanism 13 preferably further satisfies the following requirements.

  (1) It must be small.

  (2) Be modular.

  (3) Having a damper.

  FIG. 45 shows a conventional hinge mechanism 20.

  The hinge mechanism 20 includes a pipe 21, an opening torsion coil spring 22, a closing torsion coil spring 23, a piece 24, and the like.

  The spring 22 rotates the flipper 12 in the arrow A1 direction to the position P2. The spring 23 bends when the flipper 12 opens excessively and returns the flipper 12 to the position P2.

  The arm 22 a at one end of the spring 22 is fitted with the slit 25 a of the shaft 25. The arm 22 b at the other end of the spring 22 is in contact with the plate 27. The plate 27 is fixed to the flipper 12.

  The arm 23 a at one end of the spring 23 is sandwiched between the plate 27 and the flipper 12. The arm 23 b at the other end of the spring 23 is inserted into the hole 24 a of the piece 24.

  The piece 24 is rotatably supported on the shaft 25. When the projection 24b comes into contact with the stopper 28, the piece 24 is restricted from further rotation (clockwise rotation as viewed from the direction of the arrow B).

  As shown in FIG. 44A, when the flipper 12 is locked at the closed position P1, the spring 22 is twisted. Since the piece 24 is rotatable and the arm portion 23b of the spring 23 is free, the spring 23 is not twisted. When the lock is released, the flipper 12 is rotated in the direction of the arrow A 1 by the spring force of the spring 22. The piece 24 rotates around the axis 25.

  When the piece 24 turns and the protrusion 24 b comes into contact with the stopper 28, the spring force of the spring 23 acts against the spring force of the spring 22. As shown in FIG. 46, the flipper 12 stops rotating in a state where the spring force F1 of the spring 23 and the spring force F2 of the spring 22 are balanced, and is held at the position P2.

  When a strong force in the direction of the arrow A1 is applied to the flipper 12 located at the opening position P2, the flipper 12 is further opened while twisting the spring 23. At this time, the spring 22 is deformed in a direction in which the twist is released. When this strong force is not applied, the flipper 12 is rotated in the direction of the arrow A2 by the spring force of the spring 23 and returned to the position P2.

  47A and 47B show a conventional lock / unlock mechanism 30. FIG. The mechanism 30 includes a push button member 31, a lock member 32, a tension coil spring 33, and a compression coil spring 34.

  In the state before the operation, as shown in FIG. 47A, the lock member 32 is displaced in the U1 direction by the compression coil spring 34, and the lock claw portion 32a protrudes from the opening 35. When the push button member 31 is pushed with the fingertip, the push button member 31 is displaced in the X1 direction against the spring 33 as shown in FIG. 47 (B), and the push button member 31 pushes the lock member 32. The lock member 32 is displaced in the X1 direction, and the oblique long hole 32b is guided by the pin 36, and is displaced against the spring 34 in the U1 direction. As a result, the lock claw portion 32a is retracted into the opening 35, and the lock on the flipper is released. When the fingertip is separated from the push button member 31, the push button member 31 and the lock member 32 are returned to their original positions by the springs 33 and 34, respectively, and the state shown in FIG.

  The above hinge mechanism 20 shown in FIG. 45 has the following problems.

(1) The degree of freedom of design is limited.
During a call, the flipper 12 is held at the position P2 with the spring force F1 of the spring 22 being twisted and the spring force F2 of the spring 23 being slightly twisted balanced. Yes.

  Therefore, if the spring constant of the spring 22 is K1 and the spring constant of the spring 23 is K2, K1 and K2 must be determined so as to satisfy the relationship of K1 <K2. This is because when K1> K2 and K1 = K2, the opening position P2 of the flipper 12 is shifted from a predetermined position.

  For this reason, the spring constant K1 of the spring 22 and the spring constant K2 of the spring 23 cannot be freely set independently, and the degree of design freedom is limited in this respect.

  (2) It is difficult to obtain a satisfactory movement of the flipper 12.

  When the spring constants K1 and K2 of the springs 22 and 23 are defined as K1 <K2, the operation of opening the flipper 12 from the position P1 to the position P2 is too slow, conversely too early, or when the flipper 12 opens excessively. There is a possibility that the movement of the robot becomes too heavy.

  (3) It is difficult to incorporate into a telephone.

  Since it is not modularized, it takes time to assemble it into a mobile phone. Furthermore, in the conventional hinge mechanism, if the connector portion is provided, the housing becomes considerably large and downsizing is hindered.

  Further, the conventional lock / unlock mechanism 30 shown in FIG. 47 includes four independent members, that is, a push button member 31, a lock member 32, a tension coil spring 33, and a compression coil spring 34. Because of this configuration, a relatively large space is required, and it is difficult to reduce the size of the mobile phone.

  Accordingly, an object of the present invention is to provide a folding mobile phone that solves the above-described problems.

The present invention is incorporated in a telephone body, a folded body, a hinge mechanism that supports the folded body so as to rotate between a closed position and an opened position with respect to the telephone body, and the telephone body. A folding mobile phone comprising a lock / unlock mechanism that locks the folded body in the closed position and releases the lock by operating the folded body;
The lock / unlock mechanism is
An arm portion, an operation portion that is pressed when being unlocked at the base end of the arm portion, and a lock claw portion that is in the middle of the arm portion and locks the folded body in the closed position. When the operation part protrudes from the telephone body, the lock claw part protrudes from the telephone body, and the tip of the arm is locked to a part of the telephone body, and the operation part is pressed. A single locking member provided in the telephone body in a state in which the lock claw is retracted into the telephone body;
When the operation portion is pressed and elastically deformed when the lock member is operated, the lock claw portion is urged so as to protrude from the phone body, and the operation portion protrudes from the phone body. It is characterized by comprising an auxiliary spring member that is urged in an auxiliary manner.

  A single lock member having an operation part and a lock claw part is provided, and an auxiliary spring member is provided if necessary, so the lock / unlock mechanism is incorporated in a narrower space than before. I can do it.

For convenience of explanation, first, related technology of the present invention will be described.
[First related technology]
1 to 3 show a hinge mechanism 40 according to a first related art of the present invention.

  3B, 3E, and 3F are cross-sectional views taken along lines BB, EE, and FF, respectively. The hinge mechanism 40 includes a substantially single rotating shaft 41, a rotary oil damper portion 42 on the right end side of the shaft 41, an opening mechanism portion 43 at the center of the shaft 41, and a closing mechanism portion 44 on the left end side of the shaft 41. Have

  The hinge mechanism 40 has a cylindrical shape and has a modularized structure. As shown in FIG. 3 (B), the oil damper portion 42 includes a rotating body 46 fixed to the shaft 41 in a cylindrical casing 45 filled with silicone oil, and rotates within the silicone oil. The body 46 has a structure that rotates integrally with the shaft 41 while receiving resistance by silicone oil.

  The opening mechanism portion 43 generally has an opening torsion coil spring 47 as a first spring member fitted to the shaft 41 and a cylindrical casing 48 surrounding the opening torsion coil spring 47. The closing mechanism portion 44 generally includes a closing torsion coil spring 49 as a second spring member fitted to the shaft 41 and a cylindrical casing 50 surrounding the closing torsion coil spring 49.

  As shown in FIG. 2 and FIG. 3 (E), the casing 48 has an open spring arc slit 48-2, a closing spring arc slit 48-3, and a first stopper as an end face 48-1. It has an opening spring stopper 48-4 and a closing spring stopper 48-5 as a second stopper.

  The slit 48-2 has an angle α (about 180 degrees). The slit 48-3 has an angle β (about 35 degrees). The stopper 48-4 is the end of the slit 48-2 in the A1 direction. The stopper 48-5 is the end of the slit 48-3 in the A2 direction. The dimension a between the stopper 48-4 and the stopper 48-5 is equal to the diameter b of the pin 51.

  The pin 51 is fixed to the shaft 41 and protrudes in the radial direction of the shaft 41. The pin 51 is located immediately behind the end surface 48-1 of the casing 48.

  The opening torsion coil spring 47 has a spring constant K3, and has an arm portion 47a at one end and an arm portion 47b at the other end. The arm portion 47 a extends in the axial direction of the coil spring 47.

  The torsion coil spring 49 for closing has a spring constant K4, and has an arm portion 49a at one end and an arm portion 49b at the other end. Both the arm portions 49 a and 49 b extend in the axial direction of the coil spring 49.

  The spring constant K3 of the spring 47 is set to a desired value irrespective of the spring constant K4 of the spring 49 mainly considering the opening operation of the flipper. The spring constant K4 of the spring 49 is set to a desired value regardless of the spring constant K3 of the spring 47 mainly considering the excessive opening operation of the flipper.

  The spring 47 is incorporated in a state where the arm portion 47 b is fixed by being engaged with the notch 45 a of the casing 45 and the arm portion 47 a is fitted in the slit 48-2 of the casing 48.

  The spring 49 is assembled in such a manner that the arm portion 49 b is fixed by engaging with the hole 50 a of the casing 50, and the arm portion 49 a is inserted through the slit 48-3 of the casing 48.

  The casing 48 is coupled to the casing 45 by fitting the claw portion 48-6 with the recess 45 b of the casing 45. The casing 50 is coupled to the casing 48 by engaging the claw portion 50 b with the recess 48 b of the casing 48, and is fixed to the shaft 41 by a washer 52.

  In the assembled state, the hinge mechanism 40 is in the state shown in FIGS. 1, 3, and 6 (E). This state corresponds to a state during a call when it is incorporated in a mobile phone.

  The spring 47 is in a state of being slightly twisted in the A2 direction with respect to the arm portion 47b to which the arm portion 47a is fixed from the unloaded state, and the arm portion 47a is pressed against the stopper 48-4.

  The spring 48 is in a state of being slightly twisted in the A1 direction with respect to the arm portion 49b to which the arm portion 49a is fixed from an unloaded state, and the arm portion 49a is pressed against the stopper 48-5.

  The pin 51 is sandwiched between the base portion 47a-1 of the arm portion 47a and the portion 49a-1 near the tip of the arm portion 49a.

[Mobile phone 60]
4 and 5 show a folding cellular phone 60 in which the hinge mechanism 40 having the above-described configuration is incorporated. In the cellular phone 60, the hinge mechanism 40 is assembled and fixed to the hinge built-in portion 61-1 on one end side of the telephone body 61, and a flipper 62 as a folding body is fitted to both ends of the rotating shaft 41 of the hinge mechanism 40. And has a structure attached.

  This cellular phone 60 is the first related technology of the present invention relating to a folding cellular phone.

  The hinge mechanism 40 is incorporated at a predetermined angular position in the rotational direction of the rotary shaft 41 by fitting the convex portion 48-8 on the peripheral surface of the casing 48 into the concave portion 61-2 of the telephone body 61. ing. This predetermined angular position is an angle at which the flipper 62 is positioned at the opening position P2 shown in FIG.

  The telephone main body 61 includes a receiver unit 63, a transmitter unit 64, a display unit 65, a numeric keypad unit 66, and a lock / unlock mechanism unit 67.

  The lock / unlock mechanism 67 has one member 68 and one spring member 69. The member 68 has a substantially triangular lock claw portion 68a and a push button portion 68b. In the spring member 69, the arm portion 69a biases the push button portion 68b, and the arm portion 69b biases the lock claw portion 68a.

[Operation of Hinge Mechanism 40 Built in Mobile Phone 60]
Next, the operation of the hinge mechanism 40 incorporated in the mobile phone 60 will be described with reference to FIG.

  Here, the rotation angle position of the rotation shaft 41 is expressed with reference to the pin 51.

  The rotational angle positions of the rotating shaft 41 when the flipper 62 is located at the closing position P1, the opening position P2, and the excessive opening position P3 are represented by P1a, P2a, and P3a, respectively.

(1) When the flipper 62 is folded (FIGS. 6A and 6D).
The flipper 62 is locked at the closed position P1 by engaging the recess 62a with a lock claw 68a.

  As shown in FIGS. 6E and 6D, the rotary shaft 41 is located at a position rotated 145 degrees in the A2 direction from the position P2a. Further, the pin 51 pushes the root portion 47a-1 of the arm portion 47a, and the spring 47 is twisted in the A2 direction.

  (2) When the push button 68b is pressed.

  In FIG. 4, when the push button portion 68b is pushed, the lock on the flipper 62 is released, and the rotating shaft 41 is rotated in the A1 direction by the spring force of the spring 47, and the flipper 62 is rotated in the opening position P2.

  (3) Operation when the flipper 62 is rotated.

  The rotating shaft 41 rotates at a low speed while rotating the rotating body 62 of the oil damper portion 42 in the silicone oil, that is, resisting torque in a direction that prevents the rotation generated by the oil damper portion 42. As a result, the flipper 62 opens relatively slowly.

  (4) The operation of holding the flipper 62 at the open position P2.

  As shown in FIG. 6E, the arm portion 49a of the coil spring 49 is pressed against the stopper 48-5.

  The arm portion 47a that has moved in the slit 48-2 is pressed against the stopper 48-4, and further movement in the A1 direction is restricted. Further, the pin 51 is sandwiched between the arm portion 49a pressed against the stopper 48-5 and the arm portion 47a pressed against the stopper 48-4. Thereby, the rotation shaft 41 is restrained from rotating at the angular position P2a.

  Both spring forces of the springs 47 and 49 are received by the stoppers 48-4 and 48-5. The spring force of the springs 47 and 49 is not acting on the pin 51.

  Accordingly, the position at which the rotating shaft 41 is restrained from rotating is uniquely determined at the angular position P2a regardless of the spring force of the springs 47 and 49. When the rotation shaft 41 is restrained from rotating, the flipper 62 is held at the open position P2 shown in FIG.

  (5) When the flipper 62 is opened excessively.

  As shown in FIG. 6 (F), the pin 51 pushes the arm portion 49a, the spring 49 is twisted in the A1 direction, and the rotating shaft 41 rotates in the A1 direction. As described above, when the rotating shaft 41 rotates in the A1 direction with the torsion of the spring 49, the flipper 62 is excessively opened as shown in FIG.

  When the strong force applied to the flipper 62 is released, the rotary shaft 41 is rotated in the direction of the arrow A2 and returned to the position P2a, and the rotation is restricted as described above. The flipper 62 is returned to the open position P2 and kept in that position.

[Second related technology]
7 and 9 show a hinge mechanism 70 according to the second related art of the present invention.

  The hinge mechanism 70 generally has a structure in which the single rotation shaft 41 is divided into two shafts in the hinge mechanism 40 of FIG. The hinge mechanism 70 has a substantially cylindrical modularized structure in which a rotary oil damper portion 71 and an opening / closing mechanism portion 72 are coupled by engaging a hook 73 with a convex portion 74. The hinge mechanism 70 has a small diameter D of about 8 mm because of being incorporated into the telephone body. The length L is as short as about 15 mm.

[Structure of Rotary Oil Damper 71]
As shown in FIG. 9, the rotary oil damper portion 71 is assembled in a casing 75 having a shaft portion 75 a by fitting a gear-shaped rotator 76 with the shaft portion 75 a. A gap between them is filled with silicone oil 77, and the casing 75 is closed by a lid 79 with an O-ring 78 interposed therebetween.

  Here, the rotating body 76 has a diameter a of about 6 mm and a length b of about 3 mm.

  b / a is 1/2, which is considerably larger than a rotating body of a general rotary oil damper.

  The rotary oil damper portion 71 generates a torque T as a rotational drag represented by the following equation.

ここで、ｃは隙間、
μはシリコーンオイルの粘性係数、
ωは回転体７６の回転速度である。

Where c is a gap,
μ is the viscosity coefficient of silicone oil,
ω is the rotational speed of the rotator 76.

  The rotary oil damper portion 71 according to the related art generates a desired torque T under the restriction of a small diameter of about 8 mm by increasing the b / a ratio of the rotating body 76 more than usual.

  The rotating body 76 has a shaft portion 76a having a substantially elliptical cross section.

[Opening / closing mechanism 72]
The opening / closing mechanism portion 72 includes an opening mechanism portion 80 and a closing mechanism portion 81. The opening mechanism 80 includes a substantially cylindrical casing 82, a torsion coil spring 83 for opening as a first spring member, and a first shaft 84.

  The casing 82 has an end surface portion 82-1 on one end side and an opening 82-2 on the other end side. The end surface portion 82-1 has a center hole 82-3, an arc-shaped slit 82-4, and a hole 82-5. A first stopper 82-6 is formed at the end of the arc-shaped slit 82-4 in the A1 direction. The casing 82 has a rotation-preventing convex portion 82-7 on the circumferential surface.

  The spring 83 has a spring constant K5 and has arm portions 83a and 83b on each end side.

  The first shaft 84 has a substantially cylindrical shape, and has a spring support portion 84-1 for supporting the spring 83, a substantially elliptical hole portion 84-2, and a protruding portion 84-3 at the tip half portion. .

  As shown in FIG. 8, the first shaft 84 has a groove portion 84-4 in which the arm portion 83 b of the spring 83 is fitted in the outer portion of the half portion on the base side, and a spring housing that houses the spring 85 in the inner portion. A portion 84-5, a groove portion 84-6 into which the arm portion 85a of the spring 85 is fitted, and a bearing portion 84-7 into which the cylindrical shaft portion 86-2 is rotatably fitted.

  The first shaft 84 has a notch 84-8 at the base side end. The notch 84-8 has a second stopper 84-9 at the end in the A2 direction.

  The closing mechanism portion 81 includes a base portion side portion of the first shaft 84, a closing torsion coil spring 85 as a second spring member, and a second shaft 86. The closing torsion coil spring 85 has a spring constant K6 and has arm portions 85a and 85b at each end.

  Here, the spring constant K5 of the spring 83 and the spring constant K6 of the spring 85 are selected separately and independently.

  The second shaft 86 protrudes from the central disk portion 86-1, the cylindrical shaft portion 86-2 protruding from the disk portion 86-1 to one side, and the disk portion 86-1 to the other side. And a prismatic shaft portion 86-3.

  Further, a groove 86-4, a protrusion 86-5, and a rib 86-6 are formed in the disk portion 86-1.

  The opening / closing mechanism 72 has a configuration in which a spring 82, a first shaft 84, a spring 85, and a second shaft 86 are sequentially incorporated in a casing 82.

  The arm portion 83a of the spring 82 is engaged with the hole 82-5, and the arm portion 83b is engaged with the groove 84-4. Further, the protrusion 84-3 of the first shaft 84 is fitted in the arc-shaped slit 82-4. Further, the arm portion 85a of the spring 85 is engaged with the groove 84-6, and the arm portion 85b is engaged with the groove 86-4.

  A shaft portion 86-2 of the second shaft 86 is fitted to the bearing portion 84-7. Further, the protrusion 86-5 of the second shaft portion 86 is fitted in the notch 84-8.

  The second shaft portion 86 is attached in a state where the rib 86-6 is locked by the claw portion 82-8 of the casing 82 and is prevented from coming off, and the disk portion 86-1 closes the opening 82-2. .

  The first shaft 84 is urged in the A1 direction with respect to the casing 82 by the spring force of the spring 85. As shown in FIG. 11E, the first shaft 84 is stopped at a position where the protrusion 84-3 is in contact with the first stopper 82-6. The second shaft 86 is urged in the A2 direction with respect to the first shaft 84 by the spring force of the spring 85. As shown in FIG. 11 (H), the second shaft 86 is stopped at a position where the projection 86-5 is in contact with the second stopper 84-9.

  In the state where the rotary oil damper portion 71 and the opening / closing mechanism portion 72 are coupled, as shown in FIG. 9, the shaft portion 76a is fitted into the hole portion 84-2, and the first shaft 84 is fitted. And the shaft portion 76a can rotate integrally.

  In addition, an O-ring 87 is sandwiched between the casing 82 and the lid 79 to prevent silicone oil from leaking.

  Further, a fixing O-ring 88 is provided between the casing 75 and the casing 82 on the outer periphery of the casing 82 in a state where the hinge mechanism 70 is assembled in the telephone body. The fixing O-ring 88 acts to prevent oil leakage from the outer periphery and eliminate radial play.

[Mobile phone 60A]
The folding mobile phone 60A of FIG. 10 is a second related technology of the present invention relating to a folding mobile phone.

  As shown in FIG. 10, the hinge mechanism 70 having the structure described above is assembled and fixed in the hinge built-in portion 61A-1 of the telephone body 61A with the shaft portion 86-3 protruding sideways.

  The flipper 62A has an engaging recess 62A-1 and a shaft portion 62A-2. The flipper 62A is attached in a state where the engaging recess 62A-1 is engaged with the shaft portion 86-3 and the shaft portion 62A-2 is engaged with the bearing hole 61A-1a.

  Since the hinge mechanism 70 is short, it occupies only about half of the hinge built-in portion 61A-1, and the remaining half of the hinge built-in portion 61A-1 is left as a space. Using this space, a transmitter 64, a buzzer (not shown), and the like are incorporated in a space efficient manner.

  Furthermore, in the present invention, the hinge mechanism is considerably miniaturized, and a sufficient space for the connector portion can be secured.

[Operation of Hinge Mechanism 70 Built in Mobile Phone 60A]
Here, the rotation angle position of the first shaft 84 is expressed with reference to the protrusion 84-3.

  The rotational angle position of the second shaft 86 is expressed with the protrusion 86-5 as a reference. The rotational angle positions of the first shaft 84 and the second shaft 86 when the flipper 62A is located at the closed position P1, the open position P2, and the excessively open position P3 are P1b, P2b, P3b, P1c, and P2c, respectively. , P3c.

  (1) When the flipper 62A is folded.

  The second shaft 86 is rotated in the A2 direction from the position P2c in FIG. 11H integrally with the flipper 62A. The projection 86-5 pushes the second stopper 84-9, and the first shaft 84 is also rotated integrally with the second shaft 86 from the position P2b in FIG.

  The second shaft 86 is located at a position P1c shown in FIG. 11G, and the first shaft 84 is located at a position P1b shown in FIG. 11D.

  The spring 83 is twisted in the A2 direction.

  (2) When the lock on the flipper 62A is released.

  Due to the spring force of the spring 83, the first shaft 84 starts to rotate in the A1 direction. The second stopper 84-9 pushes the projection 86-5, and the second shaft 86 also starts to rotate integrally with the first shaft 84 in the A1 direction.

  The rotating body 76 rotates integrally with the first shaft 84. The rotating body 76 rotates at a low speed while resisting the torque in the direction that prevents the rotation generated by the oil damper portion 72 to reduce the rotation speed of the first shaft 84 and the second shaft 86. As a result, the flipper 62A opens relatively slowly.

  (3) The operation of holding the flipper 62A at the open position P2.

  As shown in FIG. 11E, the first shaft 84 is stopped at a position P2b where the protrusion 84-3 is pressed against the first stopper 82-6. The second shaft 86 stops at a position P2c shown in FIG. As a result, the flipper 62A is held at the open position P2 shown in FIG.

  (4) When the flipper 62A is started excessively.

  When a strong force in the direction of excessively opening the flipper 62A is applied to the flipper 62A, the first shaft 84 cannot rotate in the A1 direction from the position P2b in FIG. 11E, and the position P3b in FIG. 11F. (It is the same position as position P2b in FIG. 11E).

  The second shaft 86 alone rotates while twisting the spring 85 from the position P2c in FIG. 11 (H) in the A1 direction as shown in FIG. 11 (I). As a result, the flipper 62A is excessively opened as shown in FIG.

  When the strong force applied to the flipper 62A is released, the second shaft 86 is rotated in the A2 direction and returned to the position P2c. The flipper 62A is returned to the open position P2 and kept in that position.

[Third related technology]
12 and 14 show a hinge mechanism 100 according to the third related art of the present invention. The hinge mechanism 100 is substantially the same as the hinge mechanism 70 of the second related art except that the closing mechanism portion is composed of a cam and a pinch leaf spring.

  12 and 14, the same components as those shown in FIGS. 7 and 9 are denoted by the same reference numerals, and description thereof is partially omitted.

  The hinge mechanism 100 has a structure in which a rotary oil damper portion 71 and an opening / closing mechanism portion 72A are coupled.

  The opening / closing mechanism part 72A includes an opening mechanism part 80A and a closing mechanism part 81A. The opening mechanism portion 80A includes a casing 82A, an opening torsion coil spring 83A as a spring member, and a first shaft 84A.

  The opening torsion coil spring 83A is fitted into the spring support portion 84-1 of the first shaft 84A, the arm portion 83Aa is engaged with the groove portion 82A-9 of the casing 82A, and the arm portion 83b is engaged with the first shaft 84A. Is engaged with the groove 84-4.

  As shown in FIG. 13, the casing 82A has a notch 82A-10. The notch 82A-10 has a stopper 82A-11 at one end. The first shaft 84A has a protrusion 84A-10.

  The first shaft 84A is combined with the casing 82A, and the protrusion 84A-10 is fitted in the notch 82A-10. The closing mechanism portion 81A includes a first shaft 84A, a second shaft 86A, and a closing pinch spring 101 for closing.

  The first shaft 84A has a pinch leaf spring accommodating portion 84A-11, a bearing portion 84A-12, and a casing portion 84A-13. The sandwiching leaf spring accommodating portion 84A-11 has a substantially cubic concave shape. The bearing portion 84A-12 is formed in the inner portion of the housing portion 84A-11 and has a cylindrical concave shape.

  The second shaft 86A has a cam portion 86A-7. The cam portion 86A-7 has a substantially elliptical cross-sectional shape in which both upper and lower diameters of the cylinder are chamfered in parallel. The flat portions 86A-7a and 86A-7b on both sides of the short axis 86A-7e, and the long axis 86 Arc surface portions 86A-7c and 86A-7d on both sides of -7f.

  The cam portion 86A-7 is integral with the shaft portion 86-3. A shaft portion 86A-8 is provided at the tip of the cam portion 86A-7. The closing pinch spring 101 for closing has a substantially U shape, and includes a base 101-1 and arm portions 101-2 and 101-3 extending from the base 101-1.

  The base portion 101-1 has a hole 101-4 through which the shaft portion 86A-8 is inserted. The pinch leaf spring 101 has a spring constant K7 and a size that can be accommodated in the housing portion 84A-11. This pinch leaf spring 101 is accommodated in the accommodating portion 84A-11 in a state where movement in the rotational direction is restricted.

  The second shaft 86A is fitted and attached in the casing portion 84A-13. The cam portion 86A-7 is fitted between the arm portions 101-2 and 101-3, and the shaft portion 86A-8 is fitted to the bearing portion 84A-12.

  In the hinge mechanism 100 configured as described above, the first shaft 84A is urged in the A2 direction with respect to the casing 82A by the spring force of the spring 83A. As shown in FIG. 15E, the first shaft 84A is stopped at a position where the projection 84A-10 abuts against the stopper 82A-11.

  As shown in FIG. 15H, the cam portion 86A-7 is in a state where the flat portions 86A-7a and 86A-7b are sandwiched between the arm portions 101-2 and 101-3 by the spring force of the sandwiching plate spring 101. It is restrained by. The second shaft 86A is stopped at a position corresponding to the cam portion 86A-7.

  The hinge mechanism 100 having the above configuration is incorporated into the telephone main body 61A as shown in FIG. The flipper 62A is also attached in the same manner as shown in FIG.

[Operation of Hinge Mechanism 100 Built into Mobile Phone 60B]
Next, the operation of the hinge mechanism 100 incorporated in the mobile phone 60B will be described with reference to FIG.

  Here, the rotational angle position of the first shaft 84A is expressed with reference to the protrusion 84A-10.

  The rotation angle position of the second shaft 86A is expressed with reference to the long axis 86A-7f of the cam portion 86A-7.

  When the flipper 62A is located at the closed position P1, the open position P2, and the excessively open position P3, the rotational angle positions of the first shaft 84A are indicated by P1d, P2d, and P3d, and the second shaft 86A is rotated. The position is indicated by P1e, P2e, P3e.

  (1) When the flipper 62A is folded.

  The second shaft 86A is rotated integrally with the flipper 62A from the position P2e in FIG. 11 (H) in the A2 direction to reach the position P1e in FIG. 11 (G).

  At this time, the pinch leaf spring 101 does not expand, and the pinch leaf spring 101 rotates integrally with the cam portion 86A-7. The first shaft 84A rotates integrally with the pinch leaf spring 101 while twisting the spring 83A, and reaches the position P1d in FIG. The spring 83A is twisted in the A2 direction.

  (2) When the lock on the flipper 62A is released.

  The first shaft 84A starts to rotate in the A1 direction by the spring force of the spring 83A. The second shaft 86A rotates integrally with the first shaft 84A in the A1 direction via the pinch leaf spring 101 and the cam portion 86A-7.

  The rotating body 76 of the oil damper portion 42 rotates integrally with the first shaft 84A, and the oil damper portion 71 operates to slow down the rotation speeds of the first shaft 84A and the second shaft 86A. As a result, the flipper 62A opens relatively slowly.

  (3) The operation of holding the flipper 62A at the open position P2.

  As shown in FIG. 15E, the first shaft 84A is stopped at a position P2d pressed against the protrusion 84A-10 and the stopper 82A-11.

  The second shaft 86A stops at a position P2e in FIG. As a result, the flipper 62A is held at the open position P2 shown in FIG.

  (4) When the flipper 62A is opened excessively.

  When a strong force in the direction of excessively opening the flipper 62A is applied to the flipper 62A, the first shaft 84A cannot be rotated in the A1 direction by the stopper 82A-11 and remains at the position P3d in FIG. 15 (F).

  As shown in FIG. 15I, the cam 86A-7 rotates while expanding the sense of the arms 101-2 and 101-3 of the pinch leaf spring 101. That is, the second shaft 86A independently rotates from the position P2e in FIG. 15 (H) to the A1 direction as shown in FIG. 15 (I). As a result, the flipper 62A is excessively opened as shown in FIG.

  When the strong force applied to the flipper 62A is released, the cam 86A-7 is rotated in the cam A2 direction and the second shaft 86A is rotated in the A2 direction by the spring force sandwiched by the pinch leaf spring 101. Is returned to the position P2e. As a result, the flipper 62A is returned to the open position P2 and maintained in that position.

[Fourth related technology]
16 and 17 show a hinge mechanism 110 according to a fourth related technique of the present invention. The hinge mechanism 110 according to the related art and the hinge mechanism 130 according to the fifth related technique have an opening spring and a closing spring, and have a first axis and a second axis. 7 has the same configuration as that of the hinge mechanism 70 shown in FIG. 7 and includes a friction damper portion instead of the rotary oil damper portion 71 in the hinge mechanism 70.

  The hinge mechanism 110 has a modularized structure in which a friction damper portion 111, an opening mechanism portion 112, and an excessive opening return mechanism portion 113 are incorporated in a cylindrical casing 114 made of aluminum.

[Friction damper part 111]
The friction damper unit 111 includes a base 115, a net brake 116, a cam member 117, a shaft 118, and a compression coil spring 119.

  The base 115 has a substantially disk shape, has a stopper 115-1 protruding in the X1 direction, has a friction surface 115-2 on the X1 side, and has a convex portion 115-3 on the circumferential surface. And a groove 115-4. The base 115 has a cam housing recess 115-5 on the X2 side, and a cam projection 115-6 is formed in the recess 115-5.

  The brake shoe 116 has a disk shape and is bonded to the flange 120-1 of the first shaft 120.

  The cam member 117 has a substantially disk shape, and a cam 117-1 is formed in a concave shape on the surface on the X1 side. The cam 117-1 has the contour shown in FIG.

  As shown in FIG. 18, the cam 117-1 extends over about 220 degrees, and the first surface 117-1-1, the second surface 117-1-2, and the third surface 117-1. -3, a fourth surface 117-1-4, and a fifth surface 117-1-5.

  The first surface 117-1-1 is flush with the end surface 117-2 of the cam member 117. The position of the first surface 117-1-1 is set to 0 °. The third surface 117-1-3 is retreated by dimension c1 from the first surface 117-1-1 and extends from 45 ° to 150 °.

  The fifth surface 117-1-5 is further retracted by a dimension c2 from the third surface 117-1-3, and extends from 200 ° to 220 °. The second surface 117-1-2 is an inclined surface and connects the first surface 117-1-1 and the third surface 117-1-3. The fourth surface 117-1-4 is a slope, and connects the third surface 117-1-3 and the fifth surface 117-1-5. There is a position of 180 ° in the middle of the fourth surface 117-1-4.

  One end of the compression coil spring 119 is locked to the retaining ring 121 and is fitted to the shaft 118.

  The shaft 118 passes through the first shaft 120 in the X2 direction, passes through the base 115, and further passes through the cam member 117. A screw 122 is screwed to the tip of the shaft 118 to prevent the cam member 117 from coming off. The cam member 117 is accommodated in the recess 115-5. Further, the shaft 118 has, in part, a portion 118-1 having a substantially elliptical cross section. This portion 118-1 passes through the elliptical hole 120-2 of the first shaft 120 and the elliptical hole 117-3 of the cam member 117. As a result, the first shaft 120 and the cam member 117 rotate together with the shaft 118 with respect to the base 115. The shaft 118 is displaceable in the X1 and X2 directions with respect to the first shaft 120 and the base 115.

  The compression coil spring 119 is in a compressed state. The spring force of the spring 119 causes the first shaft 120 and the cam member 117 to sandwich the base 115 from both sides, and the brake shoe 116 presses against the friction surface 115-2 of the base 115 with a predetermined force F. is doing. As the brake 116 rotates while rubbing the friction surface 115-2, the friction damper portion 111 works and generates a friction torque that resists the rotation of the first shaft 120. The cam 117-1 functions to change the friction torque by changing the spring force of the compression coil spring 119 in accordance with the rotational position of the first shaft 120. This will be described later.

[Opening mechanism 112]
The opening mechanism 112 includes a first shaft 120 and a torsion coil spring 123 for opening. The first shaft 120 has a substantially cylindrical shape, and has a cylindrical portion 120-2 at the center, a flange 120-1 at the X2 end, a flange 120-4 at the X1 end, and an arc shape on the flange 120-1. It has a rib 120-5, a groove 120-6 on the peripheral surface of the flange 120-1, and a pair of stoppers 120-7 and 120-8 protruding from the flange 120-1 in the X1 direction.

  The torsion coil spring 123 has a spring constant K8 and has arm portions 123a and 123b at both ends. The torsion coil spring 123 is fitted around the cylindrical portion 120 a, the arm portion 123 a is engaged with the groove portion 115-4 of the base 115, and the arm portion 123 b is engaged with the groove portion 120-6 of the first shaft 120. Match.

[Excessive opening mechanism 113]
The overopening return mechanism 113 includes a second shaft 124 and a return torsion coil spring 125.

  The second shaft 124 includes a central disk portion 124-1, a prismatic shaft portion 124-2 (86-3) protruding in the X1 direction, and a X2 direction from the disk portion 124-1. A protruding cylindrical bearing portion 124-3, a cylindrical portion 124-4 protruding in the X2 direction from the disc portion 124-1, and notches 124-5 and 124 formed in the cylindrical portion 124-4. -6.

  The torsion coil spring 125 has a spring constant K9 and generates a torsional force and an elastic force against compression as will be described later. The torsion coil spring 125 has arm portions 125a and 125b at each end. The torsion coil spring 125 is incorporated in the inner portion of the cylindrical portion 124-4 by engaging the arm portion 125a with the hole 124-7 of the second shaft 124.

  In the second shaft 124, the notches 124-5 and 124-6 are fitted to the protrusions 120-7 and 120-8, the bearing portion 124-3 is fitted to the tip of the shaft 118, and the spring 125 is arranged. The arm portion 125b is engaged with the hole 120-9 of the first shaft 120 and is combined with the first shaft 120.

  The first shaft 120 and the second shaft 124 are surrounded by a casing 114 that is engaged with the projection 115-3 and attached to the base 115.

  The displacement of the second shaft 124 in the X1 direction is limited by the flange portion 114-1 of the casing 114.

  The torsion coil spring 125 is in a compressed state. The elastic force due to the compression acts in the X2 direction, and the brake shoe 116 is additionally pressed against the friction surface 115-2.

  In the assembled state of the hinge mechanism 110, the first shaft 120 is urged in the A1 direction with respect to the base 115 by the spring 123, and as shown in FIG. Is in contact with the stopper 115-1 and is located at the rotational position P2f.

  The second shaft 124 is urged in the A2 direction with respect to the first shaft 120 by the torsional force of the spring 125, and as shown in FIG. 19G, the end 124- of the cylindrical portion 124-4. 4a is in contact with the stoppers 120-7 and 120-8 and is located at the rotational position P2g.

  As shown in FIG. 19K, the cam member 117 is in contact with the protrusion 115-6 at a portion of the third surface 117-1-3 that is closer to the fourth surface 117-1-4. It is located at the rotation position P2h.

[Operation of hinge mechanism 110 incorporated in mobile phone 60C (see FIG. 19)]
The hinge mechanism 110 having the above configuration is incorporated into the telephone main body 61C as shown in FIG. The flipper 62A is also attached in the same manner as shown in FIG.

  The rotational position of the first shaft 120 is expressed with reference to the end of the rib 120-5. The rotational position of the second shaft 124 is expressed with reference to an end 124-4a facing the notches 124-5 and 124-6 of the cylindrical portion 124-4. The rotational position of the cam member 117 is represented with the 0 ° position of the cam 117-1 as a reference. When the flipper 62A is located at the closing position P1, the opening position P2, and the excessive opening position P3, the rotational positions of the first shaft 120 are indicated by P1f, P2f, and P3f, and the rotational position of the second shaft 124 is indicated. , P1g, P2g, and P3g, and the rotation position of the cam member 117 is indicated by P1h, P2h, and P3h.

(1) When the flipper 62A is folded.
The second shaft 124 rotates integrally with the flipper 62A from the position P2g in FIG. 19 (H) in the A2 direction to reach the position P1g in FIG. 19 (G).

  At this time, the end 124-4a of the cylindrical portion 124-4 pushes the stoppers 120-7 and 120-8. Therefore, the first shaft 120 rotates integrally with the second shaft 124 while twisting the spring 123, and reaches the position P1f in FIG. The spring 123 is twisted in the A2 direction.

  The cam member 117 rotates integrally with the first shaft 120 and reaches a position P1h in FIG. The first surface 117-1-1 hits the protrusion 115-6. The cam member 117 is displaced to X2, and the spring 119 is further compressed.

  (2) When the lock on the flipper 62A is released.

  Due to the spring force of the spring 123, the first shaft 120 and the cam member 117 start to rotate in the A1 direction. The stoppers 120-7 and 120-8 push the end 124-4a of the cylindrical portion 124-4, and the second shaft 124 also rotates integrally with the first shaft 120 in the A1 direction. As a result, the flipper 62A is opened.

  The brake shoe 116 rotates integrally with the first shaft 120 while rubbing the friction surface 115-2, and the friction damper portion 111 operates to rotate the first shaft 120 and the second shaft 124. To slow down.

  The friction damper unit 111 operates as follows.

  (I) When the first shaft 120 starts to rotate in the A1 direction.

  As shown in FIG. 19 (J), the first surface 117-1-1 hits the projection 115-6, and the cam member 117 is located at a position P displaced in the X2 direction from the normal position Pj. The spring 119 is compressed more than usual.

  For this reason, the pressing force to the friction surface 115-2 of the brake shoe 116 is larger than usual, and the friction torque is larger than usual. This is to counter the strong resilience of the spring 123 that is largely twisted. As a result, the first shaft 120 starts to rotate slowly and the flipper 62A starts to open slowly even though the elastic force of the spring 123 is strong.

  (Ii) After the first shaft 120 starts rotating in the A1 direction.

  As the first shaft 120 rotates in the A1 direction, the spring force of the spring 123 decreases gradually. Correspondingly, the friction torque is reduced and returned to the normal value. That is, when the cam member 117 starts to rotate in the A1 direction, as shown in FIGS. 19J and 19K, the surface of the cam that contacts the projection 115-6 is the first surface 117-1-. Move from 1 → second surface 117-1-2 → third surface 117-1-3. As a result, the cam member 117 is displaced in the X1 direction, the spring 119 becomes longer, the elastic force of the spring 119 returns to normal, the pressing force on the friction surface 115-2 of the brake shoe 116 returns to normal, and the friction torque Gradually decreases to the normal size.

  As a result, the flipper 62A continues to open slowly. The friction damper 111 is not affected by temperature and generates a constant friction torque even when the temperature is low and when the temperature is high. For this reason, the flipper 62A opens at substantially the same speed when the temperature is low and when the temperature is high.

  (3) The operation of holding the flipper 62A in the open position.

  As shown in FIG. 19E, the first shaft 120 is stopped at a position where the end of the rib 120-5 has pressed against the stopper 115-1.

  The second shaft 124 stops at a position P2g in FIG.

  As a result, the flipper 62A is held at the open position P2 shown in FIG.

  (4) When the flipper 62A is opened excessively.

  When a strong force in the A1 direction is applied to the flipper 62A, the first shaft 120 cannot be rotated by the stopper 115-1, and remains at the position P3f (P2f) in FIG. Only the second shaft 124 rotates in the A1 direction while twisting the spring 125, as shown in FIG. As a result, the flipper 62A is excessively opened as shown in FIG.

  When the force applied to the flipper 62A is released, the second shaft 124 is rotated in the A2 direction by the spring force of the spring 125 and returned to the position P2g. As a result, the flipper 62A is returned to the open position P2 and held there.

[Fifth related technology]
20 and 21 show a hinge mechanism 130 according to the fifth related art of the present invention.

  The hinge mechanism 130 is a modification of the hinge mechanism 110 shown in FIGS. 16 and 17, and a dedicated mechanism portion (compression coil spring 119 and shaft 118) for applying a pressing force to the brake shoe in FIG. 16 is omitted. Has the structure.

  In FIG. 20 and FIG. 21, the same reference numerals are given to portions substantially corresponding to the constituent portions shown in FIG. 16 and FIG.

  The first sub-axis 120A and the second sub-axis 120B correspond to each divided portion when the first axis 120 in FIG. 16 is divided into two.

  The first sub-shaft 120A and the second sub-shaft 120B are fitted to the shaft 131 so as to rotate integrally with the shaft 131 and to be slidable in the X1 and X2 directions. A brake shoe 116 is bonded to the end of the shaft 131.

  The spring 132 is a torsion compression coil spring and generates an elastic force against torsion and an elastic force against compression. The spring 132 is fitted around the first and second sub-shafts 120A and 120B, fixes one arm portion 132a to the base 115, and fixes one arm portion 132b to the second sub-shaft. It is incorporated in a state fixed to 120B. This spring 132 is incorporated in a twisted and compressed state. The brake shoe 116 is pressed against the friction surface 115-2 by an elastic force against the compression of the spring 132.

  The spring 125 is incorporated in a state where one arm portion 125 a is fixed to the second shaft 124 and the other arm portion 125 b is fixed to the shaft 131.

  The hinge mechanism 130 configured as described above operates in substantially the same manner as the hinge mechanism 110 shown in FIGS. 16 and 17, and the description thereof is omitted.

  Although each of the hinge mechanisms 40, 70, 100, 110, and 130 of the first to fifth related technologies has a configuration in which the damper portion is integrally formed, the present invention is a hinge having a structure having no damper portion. The mechanism is also included.

  In addition, the mobile phone is not limited to a mobile phone with a flip-flop structure related to the above-described technology, but can be applied to any type of mobile phone as long as it is a so-called folding phone such as a mobile phone with a built-in transmitter. Applicable.

[Third Related Art of Invention Related to Mobile Phone]
The first and second related techniques of the invention relating to the folding cellular phone are shown in FIGS.

  FIG. 22 shows a folding cellular phone 60B that is the third related art of the invention relating to the folding cellular phone.

  The cellular phone 60B has a phone body 61B, a flipper 62B, and a hinge mechanism 70 shown in FIG.

  The flipper 62B has a hinge mechanism incorporating portion 62B-1 into which the hinge mechanism is incorporated. The hinge mechanism 70 is incorporated in the hinge mechanism incorporating portion 62B-1 of the flipper 62B.

  Of the telephone body 61B, a portion 61B-1 to which the flipper 62B is coupled is not occupied at all by the hinge mechanism 70, and is entirely a space. A transmitter and a buzzer (both not shown) are included here. Is incorporated in space efficient.

  Instead of the hinge mechanism 70, the hinge mechanism 100 shown in FIGS. 12 and 14, the hinge mechanism 110 shown in FIGS. 16 and 17, or the hinge mechanism 130 shown in FIGS. 20 and 21 may be incorporated.

[Fourth Related Art of Invention Related to Folding Mobile Phone]
FIG. 23 shows a folding cellular phone 60C which is the fourth related art of the invention relating to the folding cellular phone.

  The mobile phone 60C includes a phone main body 61C, a flipper 62C, an opening / closing mechanism 72, and a rotary oil damper 71.

  Here, the opening / closing mechanism 72 and the rotary oil damper 71 are respectively obtained when the hinge mechanism 70 of FIGS. 7 and 9 is divided into two parts.

  The flipper 62C has an opening / closing mechanism part incorporating part 62C-1 and an oil damper part incorporating part 62C-2 in different parts. The opening / closing mechanism portion 72 is incorporated in the incorporating portion 62C-1. The oil damper portion 71 is incorporated in the assembling portion 62C-2.

  Of the telephone body 61C, the portion 61C-1 to which the flipper 62C is coupled is not occupied at all by the opening / closing mechanism portion 72 and the oil damper portion 71, and is entirely a space. And a buzzer (both not shown) are incorporated in a space efficient manner.

  Further, the opening / closing mechanism part and the oil damper part, which are obtained by separating the hinge mechanisms 100, 110, and 130 shown in FIGS. 12, 16, and 20, into two parts, are combined with the above-mentioned assembling parts 62C-1, 62C-, respectively. May be incorporated into 2.

[Fifth Related Art of Invention Related to Folding Mobile Phone]
FIG. 24 shows a folding cellular phone 60D that is the fifth related art of the invention relating to the folding cellular phone.

  The cellular phone 60D includes a telephone body 61D, a flipper 62D, an opening / closing mechanism 72, and a rotary oil damper 71. Here, the opening / closing mechanism 72 and the rotary oil damper 71 are respectively obtained when the hinge mechanism 70 of FIGS. 7 and 9 is divided into two parts.

  The telephone main body 61D has an opening / closing mechanism section built-in section 62D-1. The flipper 62D has an oil damper portion incorporating portion 62D-1 at different locations. The opening / closing mechanism portion 72 is incorporated in the incorporating portion 62D-1. The oil damper portion 71 is incorporated in the incorporating portion 62D-1.

  Of the phone main body 61D, the portion 61D-2 to which the flipper 62D is coupled is only open / close mechanism 72, and the oil damper portion 71 is not inserted at all. Compared to the configuration in which both 72 and the oil damper portion 71 are incorporated in the portion 61D-2, the space in the portion 61D-2 is only a space corresponding to the volume of the oil damper portion 71. It is getting wider. Therefore, a transmitter and a buzzer (both not shown) are incorporated in the portion 61D-2 with high space efficiency.

Further, the opening / closing mechanism part and the oil damper part, which are separated from the hinge mechanisms 100, 110, and 130 shown in FIGS. 12, 16, and 20, respectively, are connected to the above-mentioned assembling parts 61D-1, 62D-1, respectively. It may be built in.
[Sixth related art of the invention related to a folding cellular phone]
FIG. 25 shows a folding cellular phone 60E which is the sixth related art of the invention relating to the folding cellular phone.

  The cellular phone 60E includes a telephone body 61E, a flipper 62E, an opening / closing mechanism 72, and a rotary oil damper 71. Here, the opening / closing mechanism 72 and the rotary oil damper 71 are respectively obtained when the hinge mechanism 70 of FIGS. 7 and 9 is divided into two parts.

  The flipper 62E has an opening / closing mechanism part built-in part 62E-1. The telephone body 61E has an oil damper portion incorporating portion 61E-2 at a different part. The opening / closing mechanism portion 72 is incorporated in the incorporating portion 62E-1. The oil damper portion 71 is incorporated in the incorporating portion 61E-1.

  Of the telephone body 61E, the portion 61E-2 to which the flipper 62E is coupled is only inserted with the oil damper portion 71, and the opening / closing mechanism portion 72 does not enter at all, and the opening / closing mechanism portion. 72 and the oil damper portion 71 are both incorporated in the portion 61E-2, the space in the portion 61E-2 is a portion corresponding to the volume of the opening / closing mechanism portion 72. Only space is widened. Therefore, a transmitter and a buzzer (both not shown) are incorporated in the portion 61E-2 with high space efficiency.

  Also, the hinge mechanisms 100, 110, and 130 shown in FIGS. 12, 16, and 20 are separated into two, and the opening / closing mechanism portion is attached to the incorporating portion 62E-1, and the oil damper portion is attached to the incorporating portion 62E-1. May be incorporated.

[Seventh Related Art of Invention Related to Folding Cell Phone]
FIG. 26 shows a folding cellular phone 60F that is the seventh related art of the invention related to the folding cellular phone.

  The cellular phone 60F includes a telephone main body 61F, a flipper 62F, an opening / closing mechanism 72, and a rotary oil damper 71. Here, the opening / closing mechanism 72 and the rotary oil damper 71 are respectively obtained when the hinge mechanism 70 of FIGS. 7 and 9 is divided into two parts.

  The telephone body 61F has an opening / closing mechanism portion incorporating portion 61F-2 on one end side of the portion 61F-1 to which the flipper 62F is coupled, and an oil tamper portion incorporating portion 6F-3 on the other end side. The opening / closing mechanism portion 72 is incorporated in the incorporating portion 62F-2. The oil damper portion 71 is incorporated in the incorporating portion 62F-3.

  A transmitter and a buzzer (both not shown) are incorporated in the portion 61F-1. Since the cellular phone 60F has a rotary oil damper portion 71 formed by dividing the hinge mechanism incorporated in different parts, compared to the cellular phones 60 and 60A of FIGS. 4 and 10 incorporating the hinge mechanism, High degree of design freedom.

  Also, the hinge mechanisms 100, 110, and 130 shown in FIGS. 12, 16, and 20 are separated into two, and the opening / closing mechanism portion is assembled into the incorporating portion 61F-2 and the oil damper portion is assembled into the incorporating portion 61F-3. It may be complicated.

  The best mode for carrying out the invention will be described below.

[First Embodiment of the Invention Regarding the Locking / Unlocking Mechanism of the Folding Mobile Phone] (Embodiments of the Inventions of Claims 2 and 3 )
The lock / unlock mechanism 67 has a configuration schematically shown in FIGS. 27 to 33, components corresponding to those shown in FIGS. 4 and 5 are denoted by the same reference numerals.

  The lock member 68 is a molded part made of polyacetal resin, and has an elongated shape as shown in FIGS. 32A, 32B, and 32C, and includes an arm portion 68c and one end of the arm portion 68c. It has a push button portion 68b as an operation portion and a lock claw portion 68a at the other end of the arm portion 68c. The polyacetal resin has higher wear resistance than ordinary resins and has high toughness (sticky and strong waist), and the arm portion 68c can be bent repeatedly in the U1 direction without fear of breaking. .

  Further, the lock member 68 has a spring hooking portion 68d in the vicinity of the push button portion 68b. The lock claw portion 68a has a substantially triangular shape formed by a slope 68e extending from top to bottom, has a slope 68f from the tip toward the push button portion 68b, and has an arm portion 68c on the top surface. It has the groove part 68g extended in the same direction.

  The auxiliary spring member 69 is a torsion coil spring, and includes a coil portion 69c and two arm portions 69a and 69b extending from the coil portion 69c. The arm portion 69a has a short length L10, and the arm portion 69a has a length L11 that is considerably longer than the length L10 of the arm portion 69b. The arm portion 69a is bent by approximately 90 degrees in a direction away from the arm portion 69b as soon as it extends from the coil portion 69c, and is curved so as to be convex in the extending direction of the arm portion 69b.

  As shown in FIG. 28, the pressing member 190 is a sheet metal member, and includes a pressing plate portion 190a and two arm portions 190b and 190c extending rearward from both sides of the pressing plate portion 190a. Each arm part 190b, 190c has a notch part 190d, 190e for attachment.

  The telephone body 61 is an upper case half of the folded mobile phone 60, and has openings 200 and 201, bosses 202 and 203, ribs 204, 205, 206, 207, 208, and 209 as shown in FIG. As shown in FIG. 27, the opening 200 is provided at a substantially central portion in the longitudinal direction of the telephone body 61 on the side surface of the telephone body 61. The opening 201 is formed at a position in the center of the telephone main body 61 in the width direction of the rising wall 210 that rises at a portion of the telephone main body 61 near the handset portion 63 and crosses the telephone main body 61 in the width direction. It is. Of the inner peripheral side surface of the opening 201, the surface opposite to the opening 200 is inclined so that the opening 201 becomes larger from the outside of the telephone body 61 toward the inside than the outside of the telephone body 61, that is, An inclined surface 201 a is inclined so as to be exposed inside the telephone body 61.

  As shown in FIG. 28, the lock / unlock mechanism 67 is configured by incorporating a spring member 69, a lock member 68, and a pressing member 190 in this order inside the telephone body 61. 29 and 30, the spring member 69 has a coil portion 69c fitted to the boss 202, a curved arm portion 69b supported by two ribs 204 and 205 in the middle, and a tip portion 69b- 1 enters the gap 211 between the boss 203 and the rib 209. The lock member 68 is assembled with the arm portion 68 c along the inner surface of the rising wall 210, the push button portion 68 b protruding from the opening 200, and the lock claw portion 68 a protruding from the opening 201. The arm portion 69a of the spring member 69 is hooked on the spring hook portion 68d of the lock member 68. The lock member 68 is biased in the X2 direction by the spring member 69, and the push button portion 68b protrudes from the opening 200. Yes. Further, the central portion 69b-2 of the arm portion 69b of the spring member 69 is fitted in the groove portion 68g, and the lock member 68 is supplementarily urged in the Y2 direction by the spring force of the arm portion 69b of the spring member 69. The inclined surface 68e of the lock claw 68a protrudes from the opening 201 as shown in FIG. Further, the pressing member 190 is attached by fitting the notches 190d and 190e to the ribs 207 and 208, and the pressing plate 190a presses the lock claw 68a as shown in FIG.

  Since the lock / unlock mechanism 67 has a single lock member 68, the structure is simpler than the conventional lock / unlock mechanism. Next, the operation of the lock / unlock mechanism 67 will be described. As shown in FIG. 31, when the flipper 62 is folded, immediately before reaching the closing position P1, the flipper 62 hits the slope 68e and pushes the lock claw 68a in the Y1 direction. When the flipper 62 reaches the closed position P1, the lock claw 68a protrudes from the opening 201 and fits into the recess 62a. The flipper 62 locks the recess 62a located at the center in the width direction by the lock claw 68a. And locked in the closed position P1.

  In the above operation, the arm portion 68c of the lock member 68 is once bent in the U1 direction in a cantilever state, and then restored. The restoring operation is performed with the assistance of the spring force of the arm portion 69 b of the spring member 69. The push button portion 68b does not move. As shown in FIGS. 33A and 33B, when the push button portion 68b is pushed with the fingertip, the lock member 68 moves in the X1 direction against the spring force of the arm portion 69a of the spring member 69. The lock claw portion 68a slides along the inclined surface 201a, is displaced in the Y1 direction, and moves back into the opening 201. At this time, the arm portion 68c of the lock member 68 is elastically bent and deformed in the U1 direction. Further, the central portion 69b-2 of the arm portion 69b of the spring member 69 is bent in the Y1 direction.

  When the lock claw 68a is retracted into the opening 201, the lock on the flipper 62 is released and the flipper 62 is opened. When the fingertip is released from the push button portion 68b, the lock member 68 is moved in the X2 direction mainly by the spring force of the arm portion 69a of the spring member 69. At this time, the arm portion 68c of the lock member 68 is restored in the U2 direction by the elastic force of the arm portion 68c itself and by the spring force of the arm portion 69b of the spring member 69, and the lock claw portion 68a protrudes from the opening 201. .

  The lock claw portion 68a moves in the X1 and X2 directions while being displaced in the U1 and U2 directions. During this time, the groove portion 68g slides along the arm portion 69b of the spring member 69 and continues to be stably engaged with the central portion 69b-2 of the arm portion 69b. The spring force of the arm portion 69b of the spring member 69 is reduced by the locking claw portion. 68a continues to act stably.

  If the operation of pushing the push button portion 68b is repeated thousands of times, the arm portion 68c may gradually sag, but since the spring force of the arm portion 69b of the spring member 69 is sufficient, the arm portion 68c surely returns. . Therefore, the lock / unlock mechanism 67 has high reliability.

  Even when the arm portion 68c is folded while the flipper 62 is closed, the card 212 is inserted into the gap between the rising wall 210 of the telephone body 61 and the tip of the flipper 62 and moved in the X2 direction. The lock can be released. This is because the card 212 can push the inclined surface 68f of the lock claw portion 68a to retract the lock claw portion 68a into the opening 201.

  Further, one of the inclined surface 68f and the inclined surface 201a may be omitted. The lock member 68 may have a configuration in which the push button portion 68b and the lock claw portion 68a are connected by a metal leaf spring.

[Second Embodiment of Invention Regarding Locking / Unlocking Mechanism of Folding Mobile Phone] (Embodiment of Claim 1 )
As shown in FIGS. 34 and 35, the lock / unlock mechanism 67A has the same configuration as the lock / unlock mechanism 67 except that the lock member 68A is longer than the lock member 68.

  34 and 35, the same components as those shown in FIGS. 29 and 33 are denoted by the same reference numerals, and the description thereof is omitted. The same applies to the following embodiments. The locking member 68A has an arm portion 68h that is longer than the arm portion 68c. The lock claw portion 68a is provided substantially at the center of the arm portion 68h. The lock member 68A is provided with the tip 68i of the arm 68h fitted in the gap 220 between the inner surface of the rising wall 210 and the rib 206, and the arm 68h is in a doubly supported beam state.

  When the push button 68b is pushed with the fingertip, the slope 68f slides on the slope 201a, the lock claw 68a moves back into the opening 201, and the arm 68h of the lock member 68A is as shown in FIG. In addition, it is elastically curved in the U1 direction. When the fingertip is released from the push button portion 68b, the lock member 68A is moved in the X2 direction mainly by the spring force of the arm portion 69a of the spring member 69, as shown in FIG. At this time, the arm portion 68h of the lock member 68A is restored and restored in the U2 direction by the elastic force of the arm portion 68h itself and by the spring force of the arm portion 69b of the spring member 69, and the lock claw portion 68a protrudes from the opening 201. .

[Third Embodiment of the Invention Regarding the Locking / Unlocking Mechanism of the Folding Mobile Phone] (Embodiment of the Invention of Claim 4 )
As shown in FIGS. 36 and 37, the lock / unlock mechanism 67B includes a lock member 68B and an auxiliary compression coil spring member 69A.

  The lock member 68B has a configuration in which a finger portion 68j extending beyond the tip of the arm portion 68c is added to the lock member 68 shown in FIG. The lock member 68B is incorporated with the arm portion 68c in a cantilever state. The auxiliary compression coil spring member 69A is provided with one end fitted around the finger portion 68j and the other end fitted into the gap 220.

  When the push button portion 68b is pushed with the fingertip, the inclined surface 68f slides on the inclined surface 201a, the lock claw portion 68a retracts into the opening 201, and the arm portion 68c of the lock member 68B is as shown in FIG. In addition, it is elastically curved in the U1 direction. The auxiliary compression coil spring member 69A is compressed and bent in the U1 direction.

  When the fingertip is released from the push button portion 68b, the lock member 68B moves in the X2 direction mainly by the spring force stored by the compression of the auxiliary compression coil spring member 69A, as shown in FIG. At this time, the arm portion 68c of the lock member 68B is restored and restored in the U2 direction by the elastic force of the arm portion 68c itself and by the spring force stored by the bending of the auxiliary compression coil spring member 69, and the lock claw portion 68a. Protrudes from the opening 201.

[Fourth Embodiment of Invention Related to Locking / Unlocking Mechanism of Folding Cell Phone ]
As shown in FIGS. 38 and 39, the lock / unlock mechanism 67C includes a lock member 68 and an auxiliary compression coil spring member 69B.

  The auxiliary compression coil spring member 69B has one end held by the spring receiving portion 221 and the other end abutting the back surface of the lock claw portion 68a and extending in the U1 and U2 directions. When the push button portion 68b is pushed with the fingertip, the inclined surface 68f slides on the inclined surface 201a, the lock claw portion 68a retracts into the opening 201, and the arm portion 68c of the lock member 68 is as shown in FIG. In addition, it is elastically curved in the U1 direction. The auxiliary compression coil spring member 69B is compressed.

  When the fingertip is released from the push button portion 68b, the lock claw portion 68a is moved by the elastic force of the arm portion 68c itself and the spring force stored by the compression of the auxiliary compression coil spring member 69B as shown in FIG. It protrudes from the opening 201. When the lock claw 68a protrudes from the opening 201, the slope 68f slides on the slope 201a, and the lock member 68 moves in the X2 direction and returns to the original position.

[Fifth Embodiment of Invention Regarding Locking / Unlocking Mechanism of Folding Cell Phone] (Embodiment of Claim 5 )
As shown in FIGS. 40 and 41, the lock / unlock mechanism 67D has a configuration in which the auxiliary spring member 69 is removed from the lock / unlock mechanism 67 shown in FIG.

  When the push button 68b is pushed with the fingertip, the slope 68f slides on the slope 201a, the lock claw 68a moves back into the opening 201, and the arm 68c of the lock member 68 is as shown in FIG. 40 (B). Furthermore, it is elastically curved in the U1 direction in a cantilever state. When the fingertip is released from the push button portion 68b, the lock claw portion 68a protrudes from the opening 201 by the elastic force of the arm portion 68c itself, as shown in FIG. When the lock claw 68a protrudes from the opening 201, the slope 68f slides on the slope 201a, and the lock member 68 moves in the X2 direction and returns to the original position. To do. At this time, the arm portion 68c of the lock member 68B is restored and restored in the U2 direction by the elastic force of the arm portion 68c itself, and the lock claw portion 68a protrudes from the opening 201.

[Fifth Embodiment of Invention Related to Locking / Unlocking Mechanism of Folding Mobile Phone] (Embodiment of Claim 6 )
As shown in FIGS. 42 and 43, the lock / unlock mechanism 67E is configured by removing the auxiliary spring member 69 from the lock / unlock mechanism 67A shown in FIG. 34, and has only the lock member 68A.

  When the push button 68b is pushed with the fingertip, the slope 68f slides on the slope 201a, the lock claw 68a moves back into the opening 201, and the arm 68c of the lock member 68 is as shown in FIG. In addition, it bends elastically in the U1 direction in a doubly supported state. When the fingertip is released from the push button portion 68b, the lock claw portion 68a protrudes from the opening 201 by the elastic force of the arm portion 68c itself, as shown in FIG. When the lock claw 68a protrudes from the opening 201, the slope 68f slides on the slope 201a, and the lock member 68 moves in the X2 direction and returns to the original position.

  The folding body in the claims means a portion in which the flipper or the transmitter is incorporated. Note that the folding cellular phone of the present invention includes not only a structure in which the folding body is opened during a call, but also a structure in which the folding body is closed during a call.

FIG. 3 is a partially cutaway perspective view of a hinge mechanism according to the first related art of the present invention. It is a disassembled perspective view of the hinge mechanism of FIG. It is a figure which shows the hinge mechanism of FIG. FIG. 4 is a partially cutaway perspective view of a mobile phone in which the hinge mechanism of FIGS. 1 to 3 is incorporated. It is a disassembled perspective view of the mobile phone of FIG. It is a figure explaining operation | movement of the hinge mechanism integrated in the mobile telephone. It is a perspective view which shows the hinge mechanism used as the 2nd related technique of this invention. FIG. 8 is a perspective view showing the first axis as seen from the back side of the drawing of FIG. 7 in FIG. 7. It is sectional drawing of the hinge mechanism of FIG. FIG. 8 is a partially cutaway perspective view of a mobile phone in which the hinge mechanism of FIG. 7 is incorporated. It is a figure explaining operation | movement of the hinge mechanism integrated in the mobile telephone. It is a perspective view which shows the hinge mechanism used as the 3rd related technique of this invention. FIG. 13 is a perspective view showing the casing and the first shaft in FIG. 12 as seen from the back side of the drawing of FIG. 12. It is sectional drawing of the hinge mechanism of FIG. It is a figure explaining operation | movement of the hinge mechanism integrated in the mobile telephone. It is a perspective view which shows the hinge mechanism used as the 4th related technique of this invention. It is sectional drawing of the hinge mechanism of FIG. FIG. 17 is a development view of the cam in FIG. 16. It is a figure explaining operation | movement of the hinge mechanism integrated in the mobile telephone. It is a perspective view which shows the hinge mechanism used as the 5th related technique of this invention. It is sectional drawing of the hinge mechanism of FIG. It is a figure which shows the folding cellular phone used as the 3rd related technique of this invention regarding a folding cellular phone. It is a figure which shows the folding cellular phone used as the 4th related technique of this invention regarding a folding cellular phone. It is a figure which shows the folding portable telephone used as the 5th related technique of this invention regarding a folding portable telephone. It is a figure which shows the folding mobile telephone used as the 6th related technique of this invention regarding a folding mobile telephone. It is a figure which shows the folding portable telephone used as the 7th related technique of this invention regarding a folding portable telephone. It is a figure which shows 1st Example of the lock | rock / unlocking mechanism of the folding mobile telephone which becomes Example 1 of this invention. It is a figure which decomposes | disassembles and shows the mechanism of FIG. It is a bottom view of the lock / unlock mechanism. FIG. 30 is a sectional view taken along line XXX-XXX in FIG. FIG. 28 is a sectional view taken along line XXXI-XXXI in FIG. It is a figure which shows a locking member. It is a figure which shows operation | movement of a lock / unlock mechanism. It is a figure which shows roughly 2nd Example of the lock | rock / unlocking mechanism of the folding mobile telephone which becomes Example 2 of this invention. FIG. 35 is a bottom view of the lock / unlock mechanism of FIG. 34. It is a figure which shows schematically 3rd Example of the lock | rock / unlocking mechanism of the folding mobile telephone which becomes Example 3 of this invention. FIG. 37 is a bottom view of the lock / unlock mechanism of FIG. 36. It is a figure which shows schematically the 4th Example of the locking / unlocking mechanism of the folding mobile telephone which becomes Example 3 of this invention. FIG. 39 is a bottom view of the lock / unlock mechanism of FIG. 38. It is a figure which shows roughly the 5th Example of the lock | rock / unlocking mechanism of the folding mobile telephone which becomes Example 4 of this invention. FIG. 41 is a bottom view of the lock / unlock mechanism of FIG. 40. It is a figure which shows schematically the 6th Example of the lock | rock / unlocking mechanism of the folding mobile telephone which becomes Example 5 of this invention. 43 is a bottom view of the lock / unlock mechanism of FIG. 42. FIG. It is a figure explaining the movement of the flipper of a mobile phone. It is a disassembled perspective view of an example of the conventional hinge mechanism. It is a figure explaining holding to the open position of a flipper. It is a figure which shows an example of the conventional lock | rock / unlock mechanism.

Explanation of symbols

40 Hinge mechanism 41 Rotating shaft 42 Rotary oil damper 43 Opening mechanism 44 Closing mechanism 45 Casing 45a Notch 46 Rotating body 47 Torsion coil spring for opening (K3) (first spring member)
47a-1 Root part 47a, 47b Arm part 48 Casing 48-1 End face 48-2 Arc-shaped slit for opening spring 48-3 Arc-shaped slit for closing spring 48-4 Stopper for opening spring (first stopper)
48-5 Stopper for closing spring (second stopper)
48-6 claw part 48-7 concave part 48-8 convex part 49 Torsion coil spring for closing (K4) (second spring member)
49a, 49b Arm 50 Casing 50a Hole 51 Pin 52 Washer 60, 60A, 60B, 60C, 60D, 60E, 60F Folding mobile phone 61, 61A-61F Phone body 61-1 Hinge built-in portion 61-2 Recess 61D-1, 61F-2 Opening / closing mechanism part built-in part 61E-1, 61F-3 Damper part built-in part 62, 62A to 62F Flipper 62B-1 Hinge mechanism part built-in part 62C-1, 62E-1 Opening / closing mechanism part Built-in part 62C-2 Damper part built-in part 63 Handset part 64 Transmitter part 65 Display part 66 Tenkey part 67 Lock / unlock mechanism 68 Lock member 68a Lock claw part 68b Push button part 68c, 68h Arm part 68d Spring hook part 68e, 68f Slope 68g Groove 68i Tip 68j Finger 69 Auxiliary spring member 69a, 69b Arm 69b-1 Tip 6 b-2 Center part 69c Coil part 69A, 69B Auxiliary compression coil spring member 70 Hinge mechanism 71 Rotary oil damper part 72 Opening / closing mechanism part 73 Hook 74 Convex part 75 Casing 75a Shaft part 76 Rotating body 77 Silicone oil 78 O-ring 79 Lid 80 Opening mechanism part 81 Closing mechanism part 82 Casing 82-1 End face part 82-2 Opening 82-3 Center hole 82-4 Arc-shaped slit 82-5 Hole 82-6 First stopper 82A-9 Groove part 82A-10 Notch Part 82A-11 Stopper 83 Torsion coil spring for opening (first spring member)
83a, 83b Arm portion 84, 84A First shaft 84-1 Spring support portion 84-2 Hole portion 84-3 Projection portion 84-4 Groove portion 84-5 Spring accommodating portion 84-6 Groove portion 84-7 Bearing portion 84-8 Notch portion 84-9 Second stopper 84A-10 Projection portion 84A-11 Clamp leaf spring accommodating portion 84A-12 Bearing portion 84A-13 Casing portion 85 Torsion coil spring for closing (second spring member)
85a, 85b Arm portion 86, 86A Second shaft 86-1 Disc portion 86-2 Cylindrical shaft portion 86-3 Square columnar shaft portion 86-4 Groove 86-5 Projection 86-6 Rib 86A-7 Cam part 86A-8 Shaft part 87 O-ring 88 Fixing O-ring 89-7 Convex part 89-8 Claw part 100 Hinge mechanism 101 Closing leaf spring for closing 101-1 Base part 101-2, 101-3 Arm part 101-4 Hole 110 Hinge mechanism 111 Friction damper portion 112 Opening mechanism portion 113 Closing mechanism portion 114 Casing 114-1 Flange portion 115 Base 115-1 Stopper 115-2 Friction surface 115-3 Protruding portion 115-4 Groove portion 115-5 Cam housing Concave portion 115-6 Cam projection 116 Brake shoe 117 Cam member 117-1 Cam 117-1-1 First surface 117-1-2 Second surface 117-1-3 Third surface 117-1-4 Fourth surface 117-1-5 Fifth surface 117-2 End surface 117-3 Elliptical hole 118 shaft 118-1 elliptical section 119 compression coil spring 120 first shaft 120A first sub shaft 120B second sub shaft 120-1 flange 120-2 hole 120-3 cylindrical portion 120-4 flange 120 -5 rib 120-6 groove 120-7, 120-8 stopper 120-9 hole 121 retaining ring 122 screw 123 opening torsion coil spring 123a, 123b arm part 124 second shaft 124-1 disc part 124-2 prism Shaft portion 124-3 Bearing portion 124-4 Cylindrical portion 124-5, 124-6 Notch portion 124-7 Hole 125 Returning torsion coil spring 125a, 125b Arm portion 130 Hinge mechanism 131 Shaft 132 Closing torsion compression coil spring 190 Pressing member 190a Plate part 190b, 190c Arm part 190d, 190e Notch part 200, 201 Opening part 201a Inclined surface 20 , 203 Boss 204-209 rib 210 rising wall 211,220 gap 212 card 212 spring receiving portion

Claims (7)

The phone body,
Folding body,
A hinge mechanism for supporting the folded body with respect to the telephone body so as to rotate between a closed position and an open position;
In a folded mobile phone comprising a lock / unlock mechanism that is incorporated in the telephone body, locks the folded body in the closed position, and releases the lock when operated.
The lock / unlock mechanism is
An arm portion, an operation portion that is pressed when being unlocked at the base end of the arm portion, and a lock claw portion that is in the middle of the arm portion and locks the folded body in the closed position. When the operation part protrudes from the telephone body, the lock claw part protrudes from the telephone body, and the tip of the arm is locked to a part of the telephone body, and the operation part is pressed. A single locking member provided in the telephone body in a state in which the lock claw is retracted into the telephone body;
When the operation portion is pressed and elastically deformed when the lock member is operated, the lock claw portion is urged so as to protrude from the phone body, and the operation portion protrudes from the phone body. A foldable mobile phone comprising an auxiliary spring member that is urged to be supplementarily biased to the mobile phone. The auxiliary spring member according to claim 1 is a torsion coil spring including a coil portion and two arm portions extending from the coil portion.
The coil portion is supported on a part of the telephone main body, one arm portion, the operating portion of the lock member is biased to protrude from the telephone body is hooked on a portion of the lock member A folding mobile phone characterized in that another arm portion engages with the lock claw portion and biases the lock claw portion so as to protrude from the phone body. The auxiliary spring member according to claim 1 is a torsion coil spring including a coil portion and two arm portions extending from the coil portion.
The lock claw has a groove,
In the auxiliary spring member, the coil portion is supported by a part of the telephone body, one arm part is hooked on a part of the lock member , and the operation part of the lock member protrudes from the telephone body. The folding cellular phone is configured to be biased so that another arm portion is engaged with the groove portion of the lock claw portion and the lock claw portion protrudes from the phone body. The phone body,
Folding body,
A hinge mechanism for supporting the folded body with respect to the telephone body so as to rotate between a closed position and an open position;
In a folded mobile phone comprising a lock / unlock mechanism that is incorporated in the telephone body, locks the folded body in the closed position, and releases the lock when operated.
The lock / unlock mechanism is
An arm portion, an operation portion that is pressed when being unlocked at the base end of the arm portion, a lock claw portion that is at the distal end of the arm portion and locks the folded body in the closed position, The arm portion includes a finger portion extending from a tip of the arm portion, the operation portion protrudes from the telephone body, the lock claw portion protrudes from the telephone body, and the operation portion is pressed. A single locking member provided in the telephone body in a state in which the lock claw part is retracted into the telephone body,
One end is fitted to the finger part, the other end is locked to a part of the telephone body, the operation part is pressed and operated, and the lock member is compressed and deformed, and is deformed. The lock claw portion is configured to include an auxiliary compression coil spring member that urges the lock claw portion so as to protrude from the phone body, and urges the operation portion to protrude from the phone body. Folding mobile phone features. The phone body,
Folding body,
A hinge mechanism for supporting the folded body with respect to the telephone body so as to rotate between a closed position and an open position;
In a folded mobile phone comprising a lock / unlock mechanism that is incorporated in the telephone body, locks the folded body in the closed position, and releases the lock when operated.
The lock / unlock mechanism is
An arm portion that can be flexibly elastically, an operation portion that is pressed when the lock is released at the base end of the arm portion, and the folding body at the tip of the arm portion is locked at the closed position. A lock claw portion, the operation portion protrudes from the phone body, the lock claw portion protrudes from the opening of the phone body, and a single lock member.
At least one of the lock claw and the opening of the telephone body has a slope, and when the operation part is pressed, the lock claw is retracted into the telephone body by being guided by the slope. The arm flexes elastically like a cantilever,
When the pressing operation on the operation portion is released, the lock claw portion protrudes from the opening of the phone body by the elastic force of the arm portion itself, and is guided by the slope so that the operation portion of the lock member becomes the phone. A foldable mobile phone characterized by being configured to protrude from the main body . The phone body,
Folding body,
A hinge mechanism for supporting the folded body with respect to the telephone body so as to rotate between a closed position and an open position;
In a folded mobile phone comprising a lock / unlock mechanism that is incorporated in the telephone body, locks the folded body in the closed position, and releases the lock when operated.
The lock / unlock mechanism is
An arm portion that can be elastically bent, an operation portion that is pressed when the lock is released at the base end of the arm portion, and the folding body is locked at the closed position at the approximate center of the arm portion. A single lock provided with the operation portion protruding from the phone body, the lock claw portion protruding from the opening of the phone body, and the tip of the arm portion being locked. Consisting of parts,
At least one of the lock claw and the opening of the telephone body has a slope, and when the operation part is pressed, the lock claw is retracted into the telephone body by being guided by the slope. The arm flexes elastically like a doubly supported beam,
When the pressing operation on the operation portion is released, the lock claw portion protrudes from the opening of the phone body by the elastic force of the arm portion itself, and is guided by the slope so that the operation portion of the lock member becomes the phone. A foldable mobile phone characterized by being configured to protrude from the main body .   The folding cellular phone according to any one of claims 1 to 6, wherein a pressing operation direction of the operation portion and a retraction direction of the lock claw portion are substantially orthogonal to each other.

Images