JP2003120651A - Hinge device and cellular phone using this hinge device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hinge device superior in operability, and superior in convenience in use, and a collapsible portable apparatus using this hinge device. SOLUTION: This hinge device rotatably connects a body part 23, and a lid body part 22, and comprises a locking body 7 housed in a cylindrical body 8, and locking the lid body part in a closing position, an intermediate frame body 14 integrally rotatable with the locking body 7, and movably connected in the shaft direction, an energizing means 6 for maintaining a locking state, a coil spring 5 for always energizing the lid body part 22 in the developing direction, and a releasing means for developing the lid body part 22 by releasing the locking state by moving the locking body 7 by pressing force acting on an intermediate part of a lever 9 by pressing the other end part by a button 12 while supporting one end part of this lever 9 by interposing the lever 9 between the button 12 and the locking body 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge device and a foldable mobile phone using the hinge device.

[0002]

2. Description of the Related Art In recent years, with the increase in the amount of information and the like, a foldable portable device, which has a sufficient space for an operating unit or a display unit when used and is foldable when not in use, has become widespread. There is.

As a mobile device, for example, a foldable mobile phone, a lid unit having a display screen or the like as a receiver and a main body having operation keys or the like as a transmitter can be freely opened and closed by a hinge device. It is connected to. Some of these mobile phones automatically expand the lid portion by pressing the lock release button during use.

For example, a foldable mobile phone shown in FIG. 19 has been disclosed (Japanese Patent Laid-Open No. 8-298538). When this telephone is used, the telephone is held in the hand, and the lock release button 95 is pressed inward with a thumb or the like. Then, due to this pushing, the shaft portion and the other boss 93 move against the spring 94 and the engagement with the boss 92 is released, so that the restoring force of the torsion spring 91 causes the second boss 96 to rotate and the first boss 96 to rotate. The housing 98 automatically expands. In this way, the first housing as a lid can be opened by one-touch operation, which is convenient for the user.

After use, the first casing 98 is folded via the hinge against the biasing force of the torsion spring 91. When the hinge is folded, the urging force of the torsion spring 91 acts in the developing direction of the housing, and the unevenness of the abutting surface of the boss 92 and the other boss 93 engages while being pressed by the spring 94. The body 98 is locked in the folded state.

[0006]

In the above-mentioned mobile phone, the lock release button 95 is pressed inward against the spring 94 to open the lid. In this way, the lock release button 95
Since it directly acts on the spring 94, a pressing force greater than the urging force of the spring 94 is required. For this reason,
The unlocking button 95 requires a considerable pressing force, which may hinder the operability such as finger pain in some cases.

Further, since the lid of the mobile phone is unfolded only by operating the lock release button 95, the lid cannot be opened directly by hand, which is not convenient for the user. There's a problem.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a hinge device which is excellent in operability and easy to use, and a mobile phone using the hinge device.

[0009]

In order to solve the above technical problems, the hinge device according to the present invention, as shown in FIG. 17, rotatably connects a main body portion 23 and a lid portion 22. In the hinge device, a cylindrical body 8 having a bottom formed at one end
And a locking body 7 that is rotatably housed in the tubular body 8 and locks the lid body portion at the closed position, and a locking body 7 that is housed in the tubular body 8 and that rotates integrally with the locking body 7. It is interposed between the inner frame body 14 that moves and is movably connected in the axial direction, and the locking body 7 and the middle frame body 14, and the locking body 7 is the cylindrical body 8
Urging means 6 for pressing the bottom of the lid to maintain the locked state, and urging means for rotating the inside of the cylindrical body 8 to the inner frame body 14 so that the lid body portion 22 is always deployed. A lever 9 is interposed between the biasing coil spring 5, the button 12 and the locking body 7, and one end of the lever 9 is supported while the other end is pressed by the button 12, and an intermediate portion of the lever 9 is pressed. A releasing means for moving the locking body 7 in a direction away from the bottom portion against the biasing means 6 by a pressing force acting on the locking body 7 to release the locking state and deploy the lid body portion 22; It is a structure having.

Further, as shown in FIG. 1, the hinge device according to the present invention is a hinge device which rotatably connects a main body portion 23 and a lid portion 22 to a tubular body 8 having a bottom portion at one end. A locking body 7 that is rotatably housed in the tubular body 8 and locks the lid body portion at a closed position; and a locking body 7 that is housed in the tubular body 8 and rotates integrally with the locking body 7. And is interposed between the inner frame body 4 that is movably connected in the axial direction and the locking body 7 and the middle frame body 4, and presses the locking body 7 against the bottom of the cylindrical body 8. While maintaining the locked state, the urging means 6 that presses the inner frame body 4 in the anti-locking body direction and the urging force for rotating the inner frame body 4 in the cylindrical body 8 are provided. A coil spring 5 for urging the lid portion 22 in a constantly expanding direction is rotatably connected to the middle frame body 4, and is placed in a closed position and an open position of the lid portion 22. Then, the urging force of the urging means 6 maintains the engaged state with the inner frame body 4 to fix the lid body portion 22, while the urging force of the urging means 6 is depressed to the lid body portion 22. A lever 9 is interposed between the cam plate 2 whose engagement state is released by opening and closing the button, the button 12 and the locking body 7, and one end of the lever 9 is supported while the other end is supported. The locking body 7 is pushed by the pressing force of the button 12 acting on the intermediate portion of the lever 9.
And a releasing means for releasing the locking state to deploy the lid portion 22, by moving the lid portion 22 in a direction away from the bottom.
It is a structure having.

Further, in the hinge device according to the present invention, a spherical body is fitted into the middle frame body, while a recess is provided in the cam plate,
With the rotation of the cam plate due to the opening / closing movement of the lid portion, the sphere escapes from the recess against the biasing means, while the sphere is depressed at the open and closed positions of the lid portion. The lid portion is fixed by engaging with.

Further, in the hinge device according to the present invention, while the locking convex portion is provided on the locking body, the locking concave portion for locking the locking convex portion is provided on the bottom portion of the cylindrical body, and the lid body is provided. In the closed position of the portion, the locking convex portion engages with the locking concave portion to fix the lid body portion, and the engagement between the locking concave portion and the locking convex portion is caused by pressing the biasing means. The stop state is maintained, the locking state is released by the movement of the locking body by pressing the button, and the lid portion is expanded.

Further, in the hinge device according to the present invention, a spacer for accommodating the lever is interposed between the bottom of the cylinder and the button, and one end of the lever is interposed between the cylinder and the spacer. While arranging them as fulcrums, while using the other end as a force point, an action point for pressing the convex portion of the locking body protruding from the through hole provided in the bottom of the cylindrical body is provided between these end portions. , Pressing the button pushes the force point of the lever, and the pressing force acting on the action point of the lever moves the locking body against the biasing means to unlock the locking portion. This is a configuration having a releasing means.

The mobile phone according to the present invention is provided with a hook that rotates integrally with the inner frame body, and the cylindrical body is provided at one of the main body portion having a transmitter portion or the like and the lid portion having a receiver portion or the like. Is fixed, and the hinge device in which the hook is locked on the other side is used for connecting the main body portion and the lid body portion. Further, in addition to this, a configuration is provided in which a locking convex portion is provided on the locking body, and a locking concave portion for locking the locking convex portion is provided on a bottom portion of the cylindrical body. A configuration in which a spacer for accommodating the lever is interposed between the button and the button can also be adopted.

Also, the mobile phone according to the present invention is provided with a hook which rotates integrally with the cam plate, and the tube is provided on one of the main body portion having a transmitter portion or the lid portion having the receiver portion. It is a configuration in which the hinge device having the body fixed and the hook hooked on the other side is used to connect the main body and the lid. Further, in addition to this, a configuration is provided in which a locking convex portion is provided on the locking body, and a locking concave portion for locking the locking convex portion is provided on a bottom portion of the cylindrical body. A configuration in which a spacer for accommodating the lever is interposed between the button and the button can also be adopted.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of a hinge device 21 used in a foldable mobile phone or the like. As shown in FIG. 2, the external appearance of the hinge device 21 is formed by the hook 1, the tubular body 8 and the button 12, and other members are housed inside these. As shown in FIG. 3, the foldable mobile phone has a lid 22 made up of a receiver provided with a display screen and the like, and a body 23 made up of a transmitter provided with operation keys and the like. , Hinge device 2
The hook 1 of No. 1 is locked to the tubular portion provided on the lid body portion 22, and the tubular body 8 of the hinge device 21 is fitted and fixed to the tubular portion provided on the main body portion 23. The body 22 is connected so as to be openable and closable.

The hinge device 21 includes a hook 1, a disc 2, a pair of spheres 3, an intermediate frame 4, a torsion coil spring 5,
The compression coil spring 6, the stopper 7, the cylindrical body 8, the pair of levers 9, the spacer 10, the movable shaft 11, and the button 12 are constituent members. Among these, the cam mechanism is mainly constituted by the disk 2, the sphere 3, and the middle frame 4, and the lever 9
Is used as a lever.

The hook 1, the middle frame 4, the spacer 10 and the button 12 are made of synthetic resin such as ABS, the movable shaft 11 is made of aluminum, metal such as steel, and the torsion coil spring 5 and the compression coil spring 6 are made of steel. The disk 2, sphere 3, stopper 7, cylinder 8 and lever 9 are made of metal such as steel or stainless steel. Further, it is desirable to perform surface treatment such as electroless Ni plating or Ni plating on the disk 2, stopper 7, cylinder 8, lever 9 and movable shaft 11.

Here, each component will be described. As shown in FIG. 4, the hook 1 is provided with four locking claws 31 outwardly, on the inside, fitting recesses 32 are provided at upper and lower portions, and a through hole 33 is provided at the center. Has been formed. Further, the fitting groove portions 30 are provided on the left and right portions of the outer surface of the hook 1.
Is provided.

As shown in FIG. 5, the disc 2 has upper and lower fitting convex portions 34, which are fitted into the fitting concave portions 32 of the hook 2 so that the disc 2 and the hook 2 rotate together. . Further, a square hole 36 is provided at the center of the disk 2, and a guide path 37 having an annular shallow groove is formed in the plane part of the disk 2, and concave portions are formed at upper and lower portions of the guide path 37. 35 is formed. The concave portion 35 has a shape of a shallow hole forming a part of a spherical surface, and the radius of the spherical surface is formed to be slightly larger than the radius of the spherical body 3.
The spherical wall surface of the concave portion 35 urges the sphere 3 to enter.

The middle frame 4 shown in FIG. 6 is a tubular member,
A bottom portion 38 is formed on one end side, and the other end side is open, and has three leg portions 39 formed by axially cutting the tubular body. A through hole 41 is provided at the center of the bottom portion 38 of the middle frame body 4, and hemispherical deep hole portions in which the sphere body 3 is rotatably held are provided at upper and lower portions on the same circumference of the outer surface of the bottom portion 38. 40
Are formed. Further, the locking hole 4 is provided at one end of the bottom portion 38.
Two are provided.

The torsion coil spring 5 has locking pieces 43 axially bent on both sides of a spiral coil. One of the locking pieces 43 has a locking hole 57 of the cylindrical body 8 described below.
The other is engaged with the locking hole 42 of the middle frame body 4 in a state in which the middle frame body 4 is biased with respect to the tubular body 8 in a predetermined rotation direction (opening direction of the lid body portion). Be stopped. The compression coil spring 6 is
It is interposed in the axial direction between the locking body 7 and the middle frame body 4, and always urges the locking body 7 and the middle frame body 4 in a direction to separate them.

FIG. 7 shows the stopper 7. The stopper 7 is provided with a through hole 45 at the center of a disk-shaped base 44, and on one side of the base 44, locking protrusions 46 are provided at the left and right portions, respectively, and a central portion is provided. An annular protrusion 48 is formed in the center of the through hole 45 and protrudes in a cylindrical shape. Further, on the other side of the base portion 44, three leg portions 50 are formed so as to project from the vicinity of the periphery of the base portion 44 in the axial direction.

As shown in FIG. 8, the cylindrical body 8 has an annular bottom portion 52 having a through hole 54 formed in the center portion at one end side, and the other end side is open, so that the inside of the cylinder is formed as described above. The frame 4, the torsion coil spring 5, the compression coil spring 6 and the stopper 7 are housed. Inside the bottom portion 52 of the tubular body 8, locking recesses 58 are formed at left and right positions which are symmetrical with respect to the center.
The locking convex portion 46 of the stopper 7 is locked in the locking concave portion 58, and the guide path 60 reaching the locking concave portion 58 is formed in a slope shape. A locking hole 57 is provided at one end inside the bottom portion 52. Further, a fitting groove portion 56 for fitting the hinge device into the housing is formed on the outer peripheral surface of the cylindrical body 8 in the axial direction.

The lever 9 shown in FIG. 9 is used to move the stopper 7 to release the locking state between the locking projection 46 and the locking recess 58. Here, a pair of levers 9 are used to distribute the pressing force of the button 12 and the action on the stopper 7 in a well-balanced manner so that the operation is stabilized. The lever 9 has a shape in which one long side portion of a rectangular plate piece is cut out leaving a part thereof, and one side of the short side portion is provided with a support piece 62 protruding from both ends as a fulcrum P. The other end has a shape in which the end portion 64 is formed in an arc shape as the force point Q. An action point R is provided at a portion near the fulcrum P between the fulcrum P and the force point Q.

The spacer 10 shown in FIG. 10 is used for accommodating the above two levers 9 and securing the working space thereof. The spacer 10 has a tubular shape, a separator plate 66 having a through hole 67 in the center is provided in the middle portion, and axially cut slits 68 are formed above and below the tubular portion. Further, the separator plate 66 has a slit 68.
A tapered surface 70 is formed that becomes thinner as it approaches the portion.

As shown in FIG. 11, the movable shaft 11 comprises a disk-shaped head 72 and a cylindrical shaft body 74. A square portion 76 having a quadrangular cross section is provided at the tip of the shaft 74, and the square portion 76 is fitted into the square hole 36 provided in the disk 2. As shown in FIG. 12, the button 12 has a tubular shape of which one side is open, and is covered by the spacer 10 and is locked by a locking claw 78 provided on the inner surface of the cylinder so as not to fall out. The button 12 also has a cap function. The button 12 moves in the axial direction in a state where the spacer 10 is attached by being pressed, and the thick engaging portion 80 drives the lever 9.

Here, the assembly structure of the hinge device will be described. The hinge device 21 includes the movable shaft 11
The spacer 10 and the tubular body 8 with the lever 9 interposed are fitted into the shaft body 74, and the intermediate frame body 4 having the torsion coil spring 5 mounted thereon is fitted into the stopper 7 having the compression coil spring 6 therein. The fitting structure of the both is 3 in the middle frame 4.
Since the three legs of the stopper 7 are fitted between the legs of the book, the axial distance between the two is freely expanded and contracted, and the stopper 7 rotates integrally in the circumferential direction.

Further, the above-mentioned member is fitted into the cylindrical body 8 and the one locking piece 43 of the torsion coil spring 5 is fitted into the locking hole 5 of the cylindrical body 8.
While being locked to 7, the other locking piece 43 is locked to the locking hole 42 of the middle frame 4. Then, these members are attached to the movable shaft 11
The shaft 3 is inserted into the shaft body 41, the sphere 3 is fitted into both holes 40 of the inner frame body 4, the hook 1 fitted with the disk 2 facing the inner frame body 4 is inserted, and finally projected from the hook 1. The tip of the shaft body 74 is caulked to assemble the hinge device. Also, the button 12 is mounted on the spacer 10 at one end.

When this hinge device is attached to a mobile phone, the locking claw 31 of the hook 1 of the hinge device 21 is locked in the hole for mounting the hinge provided in the lid 22 of the mobile phone. The groove portion 56 of the hinge body cylinder 8 is fitted into the hinge-fitting cylindrical hole portion provided in the main body portion 23.

FIG. 13 shows a cross section of the hinge device 21. This hinge device shows the hinge device when the button 12 is not pressed, that is, when the lid 22 of the mobile phone is in the folded closed position. By the urging force of the compression coil spring 6, the middle frame 4 is pressed against the disk 2, while the stopper 7 is pressed so that the locking projection 46 of the stopper 7 is fitted and locked by the locking recess 58 of the cylinder 8. . At this time, the stopper 7 is in a locked state with respect to the cylindrical body 8, and unless the locked state is released, both are integrated and rotate integrally. Also, due to the biasing force of the compression coil spring 6,
The annular convex portion 48 of the stopper 7 projects from the through hole 54 of the cylindrical body 8.

On the other hand, in the torsion coil spring 5, one of the locking pieces 43 is locked to the inner frame body 4 and the other locking piece 43 is locked to the cylindrical body 8 so that The frame body 4 is locked with a biasing force that rotates (rotates in the direction in which the lid body portion 22 is deployed).

With respect to the pair of levers 9, the support piece 62 of one lever 9 is provided on the bottom 52 of the cylindrical body 8 and the bottom 5
2 is engaged with a corner portion formed by the wall surface of the spacer 10 that abuts on 2, and the force point portion Q is projected into the slit 68 of the spacer 10. The other lever 9 is placed upside down with respect to the above-mentioned one lever 9 so as to be point-symmetrical when viewed from the axis of the movable shaft 11 passing between the two levers 9.
The individual arrangement forms are the same for both levers 9.

As shown in FIG. 14, when the lever 9 is accommodated in the spacer 10, the lever 9 intersects in an X shape,
An annular convex portion 48 of the stopper 7 protruding from the cylindrical body 8 is engaged with a portion of the lever 9 near the fulcrum P (point of action R). Therefore, the lever 9 has a structure utilizing a kind of lever principle, which has a fulcrum P, a force point Q and an action point R.

In this embodiment, the distance from the fulcrum P to the action point R is about ⅕ of the distance from the fulcrum P to the force point Q, so the force acting on the action point R becomes five times. On the contrary, compared with the case where the point of action R is directly pressed, the force point Q
The force to press is reduced to 1/5. In addition, in this embodiment, two levers 9 are used, and therefore the force applied to the levers 9 is distributed to each lever 9,
As a whole, the force F for pressing the button 12 is reduced to 1/5 of the force for directly pressing the spacer 10.

The hinge device has two functions, that is, a manual opening operation for directly opening the lid portion 22 by hand and a one-touch operation for opening the lid portion 22 by pressing the button 12. Depending on the situation, the user can open the lid body portion 22 by a manual opening operation or can open the lid body portion 22 by a one-touch operation.
Even when the lid 22 is opened by one-touch operation, the lid 22 is directly closed by hand when folded.

First, the one-touch operation will be described.
As described with reference to FIG. 13 above, since the button 12 is not pressed in the hinge device when the lid portion 22 is in the closed state, the annular convex portion 48 of the stopper 7 projects from the through hole 54 of the tubular body 8. The tip portion of the lever 9 contacts an intermediate portion of the lever 9. Then, both levers 9 are stopped in an inclined state. Further, as a cam mechanism, the spherical body 3 pressed by the middle frame body 4 is engaged with the both concave surface portions 35 of the disk 2. On the other hand, the stopper 7 is pressed against the cylindrical body 8 by the urging force of the compression coil spring 6, and the locking convex portion 46 is fitted and locked S in the locking concave portion 58 of the cylindrical body 8.

Now, when the user presses the button 12,
The button 12 slides on the surface of the spacer 10, and the engaging portion 80 of the button 12 presses the force point P at the tip of the lever 9. Then, the lever 9 rotates about the support piece 62, which is the fulcrum P, as a central axis, and resists the urging force of the compression coil spring 6 to hit the action point R of the lever 9 and the annular convex portion 4 of the stopper 7.
Press 8 to move. At this time, since the two levers 9 are arranged in a point-symmetrical manner with good balance, the button 1
The operability is good because the force distribution is not biased when 2 is pressed.

Therefore, although the annular convex portion 48 of the stopper 7 is strongly biased by the compression coil spring 6, the lever 9 uses the lever principle, so that the button 12 can be pressed lightly and stably. According to the in-house test, the force required to press the compression coil spring 6 used in the test is 3 to 4K.
g weight, and the force to press the button 12 at this time is 70
Since the weight is 0 to 800 g, the force pressing the button 12 is reduced to about 1/5.

As shown in FIG. 15, when the lever 9 pushes and moves the annular convex portion 48 of the stopper 7, the stopper 7 moves to the cylindrical body 8.
When the stopper 7 is separated from the bottom 52, the fitting lock S between the locking projection 46 of the stopper 7 and the locking recess 58 of the cylinder 8 is released, and the stopper 7 can rotate independently of the cylinder 8. Here, the inner frame body 4 and the disk 2 are engaged with each other via the spherical body 3, but this cam mechanism does not operate unless a predetermined force is applied. Therefore, as described above, the stopper 7 and the middle frame body 4 rotate integrally, and the middle frame body 4 and the hook 1 fitted to the disc 2 rotate integrally. Therefore, the stopper 7, the middle frame body 4, the hook 1 and the disk 2 are all integrated and the cylindrical body 8
Rotate independently of.

On the other hand, by the torsion coil spring 5, the cylindrical body 8
On the other hand, the inner frame body 4 is urged to rotate relatively. Therefore, as shown in FIG. 16, when the engagement locking S between the locking projection 46 of the stopper 7 and the locking recess 58 of the tubular body 8 is released, the locking projection 46 guides the tubular body 8. The stopper 7 and the middle frame 4 are rotated by the biasing force of the coil spring 5 by sliding along the path 60. With the rotation of the inner frame body 4, the disc 2 and the hook 1 connected by the cam mechanism rotate together with the inner frame body 4. In this rotation mechanism, the cam mechanism remains in the engaged state and does not function.

Therefore, in the mobile phone using the hinge device 21, the lid 22 is automatically expanded by pressing the button 12, and the one-touch opening is possible. At this time, the guide path 60 of the tubular body 8 is formed in a slope shape that rises as it moves away from the locking recess 58, and therefore the stopper 7 is compressed by the compression coil spring 6 as the deployment angle of the lid 22 increases. By pressing, the rotation speed is gradually reduced, and a smooth feel of the expansion of the lid portion 22 is obtained.

When the lid 22 is opened and stopped, the fitting lock S between the tubular body 8 and the stopper 7 remains disengaged by adjusting the expansion angle of the lid 22 with respect to the main body 23. However, since the lid portion 22 is biased in the developing direction by the torsion coil spring 5, the lid portion 22 is fixed in a stopped state.

When the expanded lid 22 is folded,
By manual operation of directly closing the lid portion 22 by hand. In this case, a force that opposes the biasing force of the torsion coil spring 5 is applied to the lid portion 22. At this time, when the folding by hand is completed, the locking convex portion 46 of the stopper 7 is locked by the locking concave portion 58 of the cylindrical body 8.
Is engaged and locked S, and the biasing force of the compression coil spring 6 acts to maintain the locked state, and the lid body portion 22 stops in the closed state. At the same time, due to the biasing force of the compression coil spring 6, the annular projection 48 of the stopper 7 extends from the through hole 54 of the tubular body 8.
Comes out and the button 12 is pushed back. Further, at the moment when the folding of the lid portion 22 is completed, the stopper 7 vigorously pushes the cylindrical body 8 by the urging force of the compression coil spring 6.
It is fitted and locked S on and the predetermined click feeling is obtained.

Next, the hand opening operation of the mobile phone will be described. In the hinge device shown in FIG. 13, the lid portion 22 is in the closed position, and the button 12 is in the state before being pressed. In this case, since the tubular body 8 and the stopper 7 are in the fitting and locking S state, the tubular body 8 and the middle frame body 4 operate integrally unless the button 12 is pressed. On the other hand, a cam mechanism is formed between the inner frame 4 and the disc 2 via the sphere 3, and the disc 2 and the hook 1 are fitted together. Therefore, a hinge mechanism for rotating the hook 1 with respect to the cylindrical body 8 is configured via the cam mechanism.

When the user opens the cover body 22 directly by hand instead of pressing the button 12, the cam mechanism operates. At this time, when the disk 2 rotates together with the hook 1, the concave surface portion 35 of the disk 2 comes out of the engagement with the spherical body 3 fixed to the inner frame body 4, and the spherical body 3 rolls in the guide path 37 of the disk 2 to form the concave surface. The part 35 moves toward another sphere. Eventually, the development of the lid portion 22 is completed, and the concave surface portion 35 of the disc 2 is engaged with another spherical body 3. At the time of this engagement, momentum is added to the engagement by the urging force of the compression coil spring 6, and a click feeling is obtained. This click feeling is obtained when the rotation of the lid body portion 22 is completed, and gives a sharp feeling to the opening and closing of the lid body portion 22.

When the lid portion 22 is folded after using the mobile phone, the lid portion 22 is manually operated in the closing direction. With the closing movement of the lid portion 22, the concave surface portion 35 of the disk 2 rotates while coming out of the engagement of the spherical body 3 and reaching another spherical body 3. When the concave surface portion 35 engages with another spherical body 3, the lid body portion 22 is closed with a click feeling due to the action of the biasing force of the compression coil spring 6.

Therefore, the hinge device 2 according to the above embodiment
According to the mobile phone using 1, the lid 22 can be opened with one touch by pressing the button 12, and
The lever 9 using the lever principle can press the button 12 lightly and stably. Therefore, the one-touch opening in which the lid portion 22 is automatically expanded by the button operation with a light touch can be performed, and the operation is easy for the user.
In addition, the lid part can be developed quickly. Further, the user can conveniently select either one-touch operation or hand-opening operation for directly opening the lid portion 22 according to the situation on the spot, which is convenient. is there.

FIG. 17 shows a hinge device according to another embodiment. Like the hinge device 21 according to the above-described embodiment, the hinge device 25 is used for the foldable mobile phone shown in FIG. The hinge device 25 has only the one-touch operation function of opening the cam mechanism by removing the cam mechanism from the hinge device 21. Further, when folded, the lid 22
Directly by hand.

The appearance of the hinge device 25 is similar to that of the hinge device 21, and is formed by the hook 1, the tubular body 8 and the button 12, and the other members are housed inside them. The hinge device 21 includes, as constituent members, a hook 1, a middle frame body 14, a torsion coil spring 5, a compression coil spring 6, a stopper 7, a cylinder body 8, a pair of levers 9, and a spacer 1.
0, a movable shaft 11 and a button 12. The stopper 7, the tubular body 8, the lever 9, the spacer 10, the button 12, and the like constitute a locking mechanism.

Of the constituent members of the hinge device 25, the parts other than the inner frame body 14 are the same as the hinge device 21, and therefore the description thereof is omitted here. The above-mentioned middle frame 1
Reference numeral 4 denotes a tubular member as shown in FIG. 18, which has a bottom portion 43 formed on one end side and three leg portions 39 formed by notching the tubular body in the axial direction while leaving the other end side open. Have. A through hole 41 is provided at the center of the bottom portion 43 of the middle frame body 14, and an engaging convex portion 45 is formed vertically on the outside of the bottom portion 43.
The fitting convex portion 45 is fitted into the fitting concave portion 32 of the hook 2 so that the inner frame body 14 and the hook 2 rotate together.

The opening / closing operation of the mobile phone using the hinge device 25 is basically the same as the one-touch operation using the hinge device 21. Button 12
When is pressed, the stopper 7 that comes into contact with the action point R of the lever 9 is pushed and moved. Then, the locking protrusion 46 of the stopper 7
Then, the fitting S with the locking recess 58 of the cylindrical body 8 is released, and the stopper 7 is rotated by the biasing force of the coil spring 5. With the rotation of the stopper 7, the inner frame body 14 and the hook 1 connected to the stopper 7 rotate together with the stopper 7,
The lid portion 22 will be expanded. When closing the opened lid portion 22, the lid portion 22 is manually folded directly by hand. At the moment when the lid portion 22 is completely folded,
The stopper 7 is locked to the cylindrical body 8, and the compression coil spring 6
A click feeling is obtained by the urging force of.

Therefore, in the mobile phone using the hinge device 25, the lid 22 can be opened with one touch by pressing the button 12, and the lever 9 uses the lever principle. The button 12 can be pressed lightly and stably, which is easy for the user to operate,
In addition, there is an effect that the lid portion can be developed quickly.

[0054]

As described above, according to the hinge device of the present invention, the lock body rotatably housed in the cylindrical body, the inner frame body, the biasing means for maintaining the locked state, and the lid. A coil spring that constantly urges the body portion in the direction of unfolding, and a release means that moves the locking body by the pressing force that acts on the intermediate portion of the lever that is pressed by the button to release the locked state and deploy the lid body portion. With the adoption of the configuration, the lid can be opened with a single touch, and the lever leverages the principle of leverage, so the button can be pressed lightly and stably with excellent operability. Play.

According to the hinge device of the present invention,
Locking body rotatably housed in the cylindrical body, middle frame body, biasing means for maintaining the locked state and pressing the middle frame body, coil spring for biasing the lid body part in a direction to always deploy, lid body The lock plate is fixed in the closed position and the open position, and the lock plate is released by the opening / closing operation of the lid body, and the lock body is moved by the pressing force acting on the intermediate portion of the lever pressed by the button to release the locked state. By adopting a structure that has a releasing means for expanding the lid body part by one touch, the lid body part can be opened with one touch, and since the lever uses the principle of lever, the pressing of the button is light and stable. Therefore, the user can select the operation by one-touch operation or the operation of manually opening the lid body, which is convenient.

According to the mobile phone of the present invention, a hook that rotates integrally with the middle frame is provided, and the tubular body is fixed to one of the main body and the lid, and the hook is locked to the other, and Since the hinge device is used for connection, the lid part of the mobile phone can be opened with one touch, and the lever lever principle is used, so the button can be pressed gently and stably. It has the effect of being excellent in properties.

According to the mobile phone of the present invention, a hook which rotates integrally with the cam plate is provided, the cylinder is fixed to one of the main body portion and the lid portion, and the hook is locked to the other portion so that the hinge is provided. Since the device is used for connection, the lid part of the mobile phone can be opened with one touch, and the lever lever principle is used, so the button can be pressed gently and stably. Further, the user of the mobile phone can select either one-touch operation or manual opening operation of the lid portion, which is convenient.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a hinge device according to an embodiment of the present invention.

2A and 2B are external views of the hinge device according to the embodiment, where FIG. 2A is a front view and FIG. 2B is a right side view.

FIG. 3 is a schematic view showing a mobile phone using the hinge device according to the embodiment.

FIG. 4 is a front view of a hook of a hinge device,
(B) is a right side surface, (c) is a figure which shows the AA cross section.

5A and 5B are diagrams showing a left side surface, a sectional view taken along line BB of FIG. 5A, and a right side surface of a disc of a hinge device.

FIG. 6A is a front view of the middle frame of the hinge device;
(B) is a figure which shows CC cross section, (c) is a figure which shows the right side surface.

FIG. 7 shows a stopper of a hinge device in which (a) shows an annular guide path in a straight line, and (b) shows a left side surface.
(C) is a figure which shows the front and (d) shows DD cross section.

FIG. 8 (a) is a front view of a hinge device cylinder;
(B) is a figure which shows the right side surface, (c) is what displayed the annular guide path straight, (d) is a EE cross section, (e) is a figure which shows a left side surface.

FIG. 9 (a) is a front view of a lever of a hinge device;
(B) is a figure which shows a right side surface.

10A and 10B are views showing a left side surface, a right side surface, and a FF cross section of a spacer of a hinge device.

11A and 11B are views showing a front surface and a right side surface of a movable shaft of a hinge device.

12A and 12B are views showing a right side surface and a GG cross section of a button of a hinge device.

FIG. 13 is a diagram showing a cross section of the hinge device before the button is pressed according to the embodiment.

FIG. 14 is a diagram illustrating operations of the lever and the stopper when the button is pressed according to the embodiment.

FIG. 15 is a diagram showing a cross section of the hinge device when a button is pressed according to the embodiment.

FIG. 16 is a diagram illustrating a state in which the stopper moves along the guide path of the cylindrical body according to the embodiment.

FIG. 17 is an exploded perspective view of a hinge device according to another embodiment.

FIG. 18 is a view showing the front surface, (b) is a HH cross section, and (c) is a right side view of the middle frame of the hinge device.

FIG. 19 is an exploded perspective view of a hinge device according to a conventional example.

[Explanation of symbols]

1 hook 2 Cam plate (disc) 3 spheres 4,14 Middle frame 5 Coil spring (torsion coil spring) 6 Biasing means (compression coil spring) 7 Locking body (stopper) 8 cylinder 9 lever 10 Spacer 11 Movable axis 12 buttons

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Minoru Hayashi             435 Shimodonooka, Iida City, Nagano Prefecture Taira Co., Ltd.             Japanese watch factory F term (reference) 3J105 AA14 AA15 AB02 AB14 AB24                       BA12 BA21 BB26 BB52 BC02                       BC13 DA13 DA32 DA34                 5K023 AA07 DD08 RR09                 5K067 AA34 BB04 KK17

Claims (7)

[Claims] 1. A hinge device for rotatably connecting a main body portion and a lid portion, a tubular body having a bottom portion formed at one end, and a lid body rotatably housed in the tubular body. A locking body that locks in the closed position, an inner frame that is housed in the cylindrical body, rotates integrally with the locking body, and is movably coupled in the axial direction, the locking body and the middle body. Energizing means interposed between the frame body and the locking body to press the locking body against the bottom of the cylinder body to maintain the locked state, and the middle frame body with a force to rotate the cylinder body. , A coil spring for urging the lid portion in a direction to be always expanded, and a lever interposed between the button and the locking body, and one end of the lever is supported while the other end is pressed by the button, The pressing force acting on the intermediate portion of the lever moves the locking body in the direction away from the bottom portion against the biasing means. And a releasing means for releasing the locked state and deploying the lid portion, the hinge device. 2. A hinge device for rotatably connecting a main body part and a lid part, wherein a cylindrical body having a bottom portion at one end, and a rotatably housed in the cylindrical body, wherein the lid part is provided. A locking body that locks in the closed position, an inner frame that is housed in the cylindrical body, rotates integrally with the locking body, and is movably coupled in the axial direction, the locking body and the middle body. Urging means interposed between the frame body and the locking body for pressing the locking body against the bottom of the cylindrical body to maintain the locked state, and pressing the middle frame body in the direction opposite to the locking body; A coil spring for urging the middle frame body to rotate in the cylinder body and urging the lid body part in a constantly expanding direction, and a coil spring rotatably connected to the middle frame body, and the lid body part. In the closed position and the open position, the urging force of the urging means maintains the engaged state with the middle frame body to fix the lid body portion, while A lever is interposed between the cam plate, which is released from the engaged state by opening and closing the lid portion by the biasing force of the means, and the button and the locking body, and one end portion of the lever is provided. While pressing the other end with the button, the pressing force acting on the intermediate part of the lever moves the locking body in the direction away from the bottom against the biasing means, and the locking state And a releasing means for releasing the lid body to deploy the lid portion. 3. A sphere is fitted into the middle frame while a recess is provided in the cam plate, and the sphere resists the urging means as the cam plate is rotated by the opening and closing movement of the lid part. 3. The hinge device according to claim 2, wherein the spherical body engages with the dent to fix the lid body at the open position and the closed position of the lid body while escaping from the dent. . 4. The engaging projection is provided on the engaging body, while the engaging recess is provided on the bottom of the cylindrical body for engaging the engaging projection, and the engaging portion is provided at a closed position of the lid body. The stop projection is engaged with the locking recess to fix the lid body, and the pressing state of the locking recess and the locking projection is maintained by pressing the biasing means. The hinge device according to any one of claims 1 to 3, wherein the locking state is released by the movement of the locking body due to the pressing of the lock body, and the lid body portion is expanded. 5. A spacer for accommodating the lever is interposed between the bottom of the cylinder and the button, and one end of the lever is arranged between the cylinder and the spacer to serve as a fulcrum. The other end is used as a force point, and an action point for pressing the convex portion of the locking body protruding from the through hole provided in the bottom portion of the cylindrical body is provided between these end portions, and the lever is pressed by pressing the button. And a releasing means for releasing the locking of the locking portion by moving the locking body against the biasing means by the pressing force acting on the action point of the lever. The hinge device according to any one of claims 1 to 4. 6. A hook that rotates integrally with the middle frame is provided, and the cylinder is fixed to one of the main body having a transmitter or the like or the lid having a receiver, and the other. A mobile phone, wherein the hinge device according to claim 1 in which the hook is locked is used for connecting the main body and the lid. 7. A hook that rotates integrally with the cam plate is provided, and the cylinder is fixed to one of the main body having a transmitter or the like or the lid having a receiver, and the other is fixed to the other. A mobile phone, wherein the hinge device according to claim 2 or 3 in which the hook is locked is used for connecting the main body portion and the lid body portion.