JPH09242414A - Hinge device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform quick rotational movement of opening/closing members in accordance with the specifications and holding the opening/closing members at any angle with resisting torque. SOLUTION: A hinge device has a rotating force generating means 80 to rotate opening/closing members 1, 2 in one direction, a resisting torque generating means 73 to override rotating force given by the rotating force generating means 80 for holding the opening/closing members 1, 2 at any angle while being connected to the rotating force generating means 80 and a switching means 92 to associate the resisting torque generating means 73 and the rotating force generating means 80 with the opening/closing operation of the opening/closing members 1, 2 to perform connection and separation at the boundary of a given angle. It is provided with quick rotation function for the opening/closing members 1, 2 to be quickly rotated to one direction by the rotating force generating means 80 while being separated from the resisting torque generating means 73 by the switching means 92 and angle holding function for the opening/closing members 1, 2 to be held at any angle by the resisting torque generating means 73 while being connected to the rotating force generating means 80 by the switching means 92.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge device capable of performing a swiveling operation and holding an arbitrary angle by a resistance torque.

[0002]

2. Description of the Related Art For example, a hinge having a function of an opening / closing shaft (rotating shaft) has been conventionally used as a rotating mechanism (hinge device) of an opening / closing member such as a foldable mobile phone or an opening / closing door.
(2) A torque shaft bush for constantly generating a resistance torque force to hold the opening / closing member at an arbitrary angle, a torque limiter or a tilt unit, and (3) a damper having a buffering function for slowing the opening / closing operation.

[0003]

However, in the conventional hinge device, (1) the hinge has only the function of the rotating shaft, and cannot generate the resistance torque force for holding the opening / closing member. (2) Since the torque torque of the torque shaft bushing and the damper is constantly generated, there is a problem that it is not possible to switch between generating and eliminating the resistance torque force according to the purpose.

An object of the present invention is to enable a swiveling operation in a hinge device according to the specifications of an opening / closing member, while
It is to be able to hold an arbitrary angle by resistance torque.

[0005]

In order to solve the above problems, the invention according to claim 1 applies a rotational force for rotating the opening / closing member of a folding mobile phone or the like in one direction such as an opening direction. A rotating force generating means such as a torsion coil spring that is generated, and a resistance torque that exceeds the rotating force generated by the rotating force generating means in order to hold the opening / closing member at an arbitrary angle while being connected to the rotating force generating means. And a resistance torque generating means such as a torque shaft bush to be generated, and a temporary separating means such as a push button, a slide plate and a rotating plate for temporarily separating the resistance torque generating means and the rotating force generating means, A quick rotation function of rapidly rotating the opening / closing member in one direction such as the opening direction by the rotational force generating means in a state of being separated from the resistance torque generating means by the temporary separating means. It is characterized in configuration of the hinge apparatus anda angle holding function of holding an arbitrary angle by the resistive torque generating means the opening and closing member in a connected state with the rotational force generating means by the temporary separation means.

As described above, the opening / closing member is held at an arbitrary angle in a state in which the opening / closing member is connected to the rotating force generating means for rotating the opening / closing member in one direction and the resistance torque exceeding the rotating force to generate the rotating force generating means. Since the hinge device is composed of the resistance torque generating means and the temporary separating means for both of them, in the separated state from the resistance torque generating means, a quick rotation function of the opening / closing member in one direction by the rotational force generating means can be obtained. ,
Further, in the connection state with the rotational force generating means, the function of holding the opening / closing member at an arbitrary angle by the resistance torque generating means can be obtained. Therefore, according to the specifications of the opening / closing member, a swiveling operation can be performed quickly, and an arbitrary angle can be maintained by a resistance torque, which is convenient as a hinge device.

The opening / closing member to which the present invention is applied is not limited to the foldable mobile phone, but is intended to be any opening / closing member. The rotating force generating means is not limited to the torsion coil spring, and the opening / closing member is not limited thereto. Any material may be used as long as it generates a rotational force for rotating the member in one direction. Further, the resistance torque generating means is not limited to the torque shaft bush, and in order to hold the opening / closing member at an arbitrary angle while being connected to the torque generating means, a resistance torque exceeding the torque generated by the torque generating means is generated. Anything will do as long as it does. Further, the temporary separating means is not limited to the interlocking mechanism such as the push button, the slide plate and the rotating plate, but may be any means for temporarily separating the resistance torque generating means and the rotational force generating means.

[0008] The invention described in claim 2 is based on claim 1.
In the hinge device described above, the temporary separation means separates the operation member such as a push button and the resistance torque generation means and the rotational force generation means in association with the operation of the operation member, and After the separation, the interlocking mechanism including a slide plate and a rotary plate that returns to the initial state by the rotational force generating means is characterized.

As described above, the resistance torque generating means and the rotational force generating means are separated in association with the operation of the operating member, and
Since the temporary separating means is provided with the interlocking mechanism that returns to the initial state by the rotational force generating means after the separation, it is separated from the resistance torque generating means as in the invention according to claim 1 by interlocking with the manual operation. After the quick rotation function of the opening / closing member in one direction is obtained by the rotating force generating means, the function of holding the opening / closing member at an arbitrary angle by the resistance torque generating means connected to the rotating force generating means is obtained.

Here, the operation member is not limited to the push button, and any operation member may be used. Also,
The interlocking mechanism is not limited to the slide plate and the rotating plate, but separates the resistance torque generating means and the rotational force generating means in conjunction with the operation of the operating member, and after the separation, the initial force is generated by the rotational force generating means. Anything that returns to the state may be used.

[0011] Further, the invention according to claim 3 is based on claim 2.
In the hinge device according to the description, a lock mechanism such as a lock plate that holds the operation member in an inoperable locked state after separation of the resistance torque generation means and the rotational force generation means,
A lock release member such as a lock release pin that releases the locked state of the operation member by the lock mechanism with the opening / closing member closed.

As described above, the hinge device is provided with the lock mechanism for disabling the operation member after the resistance torque generating means and the rotational force generating means are separated. After the quick rotation function of the opening / closing member in the opening direction is obtained by the rotational force generating means in the state of being separated from the torque generating means, the operating member cannot be operated by the lock mechanism, and the resistance torque generating means and the rotational force generating means are separated. Is connected again, the function of holding the opening / closing member at an arbitrary angle by the resistance torque generating means can be obtained. Since the hinge device includes the unlocking member that unlocks the locked state of the operating member by the locking mechanism when the opening / closing member is closed, the locked state of the operating member is unlocked by the unlocking member when the opening / closing member is closed. Thus, as in the second aspect of the invention, the quick rotation function of the opening / closing member in one direction by the rotational force generating means separated from the resistance torque generating means is obtained again in conjunction with the manual operation.

Here, the lock mechanism is not limited to the lock plate, but may be any lock mechanism that holds the operating member in an inoperable locked state after the resistance torque generating means and the rotational force generating means are separated. Further, the lock releasing member is not limited to the lock releasing pin, and may be any member as long as it releases the locked state of the operating member by the lock mechanism with the opening / closing member closed.

Further, the invention according to claim 4 is, for example, a rotational force generating means such as a torsion coil spring for generating a rotational force for rotating the opening / closing member such as an opening / closing door in one direction such as a closing direction, Resistance torque generating means such as a torque shaft bush for generating a resistance torque exceeding the rotational force by the rotational force generating means in order to hold the opening / closing member at an arbitrary angle while being connected to the rotational force generating means, The resistance torque generating means and the rotational force generating means are connected.
A switching knob for separating, a lever, a switching means such as a torsion coil spring, etc., and the opening / closing member is moved in one direction such as a closing direction by the rotational force generating means in a separated state from the resistance torque generating means by the switching means. A quick rotation function of rapidly rotating, and an angle holding function of holding the opening / closing member at an arbitrary angle by the resistance torque generating means in a connection state with the rotational force generating means by the switching means,
It is characterized by the configuration of a hinge device including the.

As described above, the opening / closing member is held at an arbitrary angle in a state in which the opening / closing member is connected to the rotating force generating means for rotating the opening / closing member in one direction and the resistance torque exceeding the rotating force to be connected to the rotating force generating means. Since the hinge device is composed of the resistance torque generating means and the switching means for connecting / disconnecting the both, the opening / closing member by the rotational force generating means is separated from the resistance torque generating means in response to the operation of the switching means. A quick rotation function in one direction can be obtained, and a function of holding the opening / closing member at an arbitrary angle by the resistance torque generating means can be obtained in a connection state with the rotating force generating means. Therefore, according to the specifications of the opening / closing member, a swiveling operation can be performed quickly, and an arbitrary angle can be maintained by a resistance torque, which is convenient as a hinge device.

The opening / closing member to which the present invention is applied is not limited to the opening / closing door, but may be any opening / closing member, and the rotating force generating means is not limited to the torsion coil spring, but may be applied to the opening / closing member. On the other hand, any material may be used as long as it can generate a rotational force for rotating in one direction. Further, the resistance torque generating means is not limited to the torque shaft bush, and in order to hold the opening / closing member at an arbitrary angle while being connected to the torque generating means, a resistance torque exceeding the torque generated by the torque generating means is generated. Anything will do as long as it does. Furthermore, as a switching means, a switching knob, a lever,
The mechanism is not limited to the interlocking mechanism using a torsion coil spring or the like, and any device that connects and disconnects the resistance torque generating means and the rotational force generating means may be used.

The invention described in claim 5 is the invention according to claim 4.
In the hinge device described above, the switching means is, for example,
An operating member such as a switching knob, and a spring such as a torsion coil spring that holds the operating member in a connected state and a separated state between the resistance torque generating means and the rotational force generating means in association with the operation of the operating member. And a member.

As described above, since the switching means is provided with the spring member for holding the operating member in the connected state and the separated state of the resistance torque generating means and the rotational force generating means in association with the operation of the operating member, the manual operation is performed. In accordance with the invention as claimed in claim 4, a state in which a quick rotation function in one direction of the opening / closing member by the rotational force generating means separated from the resistance torque generating means is obtained, and the rotating force generating means is also provided. It is possible to arbitrarily select a state in which the function of holding the angle of the opening / closing member to an arbitrary angle is obtained by the connected resistance torque generating means.

Here, the operation member is not limited to the switching knob, and any operation member may be used. Also,
The spring member is not limited to the torsion coil spring, and may be any member that holds the operating member in the connected state and the disconnected state of the operating member in association with the operation of the operating member. Good.

According to a sixth aspect of the present invention, in the hinge device according to the fourth aspect, the switching means is provided between the rotational force generating means and the resistance torque generating means,
A cam mechanism such as a movable cam and a fixed cam that interlocks with the opening / closing operation of the opening / closing member and switches the rotational force generating means and the resistance torque generating means between a separated state and a connected state at a predetermined angle of the opening / closing member. It features a certain configuration.

As described above, the switching mechanism is a cam mechanism that switches the rotational force generating means and the resistance torque generating means between the separated state and the connected state at the predetermined angle of the opening / closing member in conjunction with the opening / closing operation of the opening / closing member. The rotating force generating means separated from the resistance torque generating means as in the invention according to claim 4, with a cam mechanism interlocking with the opening / closing operation of the opening / closing member at a predetermined angle as a boundary without any external operation. Is divided into an angle region for obtaining a quick rotation function of the opening / closing member in one direction and an angle region for obtaining an angle holding function of the opening / closing member at an arbitrary angle by the resistance torque generating means connected to the rotational force generating means.

Here, the cam mechanism is not limited to the movable cam and the fixed cam, but the rotating force generating means and the resistance torque generating means are interlocked with the opening / closing operation of the opening / closing member and are separated by a predetermined angle. Anything can be used as long as it has a function of switching between the separated state and the connected state.

The invention according to claim 7 is the same as claim 6
In the hinge device described above, the cam mechanism is provided on one of the rotational force generating means and the resistance torque generating means, for example, on the rotational force generating means side, and rotates integrally with the opening / closing member side. A movable cam that is integrally mounted on a shaft member such as a rotational direction so as to be movable in the axial direction, and is provided on the other side of the rotational force generating means or the resistance torque generating means, for example, on the resistance torque generating means side,
Engaging the movable cam and moving the movable cam in the axial direction in conjunction with the opening / closing operation of the opening / closing member,
For example, it is characterized by a structure including a fixed member side or a fixed cam integrated with the other opening / closing member side.

As described above, the movable cam provided on one side of the rotational force generating means or the resistance torque generating means and the fixed cam provided on the other side of the rotational force generating means or the resistance torque generating means. Because it is a cam mechanism that moves in the axial direction in conjunction with the opening and closing operation of the opening and closing member by the engagement of
According to the invention as set forth in claim 6, the rotational force generating means is demarcated at a predetermined angle by the engaging relationship between the movable cam and the fixed cam that interlock with the opening / closing operation of the opening / closing member without requiring any operation from the outside. One-way rapid rotation area of the opening and closing member by
It is divided into an arbitrary angle holding region of the opening / closing member by the resistance torque generating means.

The movable cam is not limited to the one provided on the rotational force generating means side and rotating integrally with the opening / closing member side, but may be the one provided on the resistance torque generating means side and the shaft member. Anything may be used as long as it can be assembled in the axial direction so as to be movable in the axial direction so as to be rotatable. Further, the fixed cam is not limited to one provided on the resistance torque generating means side and integrated with the fixing member side or the other opening / closing member side, but may be one provided on the rotational force generating means side, and Anything can be used as long as it has a function of moving the movable cam in the axial direction in conjunction with the opening / closing operation.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a hinge device according to the present invention will be described below with reference to FIGS. 1 to 16.

<First Embodiment> First, FIG. 1 shows a foldable mobile phone according to a first embodiment to which a hinge device according to the present invention is applied. FIG. 1A shows a folded state. FIG. 2 is a perspective view showing a developed state, FIG. 2B is a perspective view showing a developed state, FIG. 2 shows an internal mechanism of the foldable mobile phone in the developed state, FIG. 2A is a front view, and FIG. It is a figure. Further, FIG. 3 shows A in FIGS. 2 (a) and 2 (b).
FIG. 4 is a detailed front view, (b) is an enlarged side view, and FIG. 4 is an enlarged main part showing a hinge device according to a first embodiment of the present invention. Partial front view
FIG. 5 is an exploded perspective view showing the components.

1 to 5, 1 is an upper body portion (opening / closing member), 2 is a lower body portion (opening / closing member), 3
Is a hinge part, 4 is a display part, 5 is a speaker, 6 is an operation key part, 7 is a microphone, 8 is a hinge device, 9 is an open button (operation member), 10 is an interlocking mechanism, 11 is a locking mechanism, 1
2 is a lock release pin (lock release member), 13 is a torque shaft bush (resistance torque generation means), 14 is a toggle spring (rotational force generation means), 15 is a shaft member, 16 is a lock plate, 17 is a lock plate fulcrum shaft , 18 are slide plates, 19
Is a guide shaft, 20 is a rotary plate, 21 is a rotary plate fulcrum shaft, 22
Is a slide plate, 23 is a guide shaft, 24 is an engaging piece portion, 25
Is a connecting piece portion, 26 is a fixed boss (fixing member), 27 is a fixing piece portion, 28 is a locking groove, 29 is a spring end portion, 30 is a movable boss (movable member), 31 is a connecting piece portion, and 32 is a hanging piece. Gutter,
33 is a spring end, 34 is a connection recess, 35 is an inner shaft,
36 is a rubber bush, 37 is an outer shaft, 38 is a fixed piece,
Reference numeral 39 is a connecting protrusion, 40 is a temporary separating means, 41 is a washer, and 42 is an E-shaped retaining ring.

That is, the foldable mobile phone to which the present invention is applied has, as shown in FIGS. 1 to 3, an upper body portion 1 which is one opening / closing member and a lower body portion 2 which is the other opening / closing member. The upper body 1 is provided with the display unit 4 and the speaker 5, and the lower body unit 2 is provided with the operation key unit 6 and the microphone 7. It should be noted that the hinge device 8 according to the present invention is built in the hinge portion 3. As shown in FIGS. 2 and 3, an open button 9 which is an operation member is provided on one side surface of the upper body portion 1, and the upper body portion 1 further includes an open button 9.
The interlocking mechanism 10 and the lock mechanism 11 are built in. Further, a lock release pin 12 which is a lock release member is provided so as to project on the inner surface of the lower body portion 2.

As shown in FIGS. 4 and 5, the hinge device 8 includes a torque shaft bush 13 which is a resistance torque generating means.
And the toggle spring 14, which is the torque generating means,
It is provided on the shaft member 15, and the toggle spring 14 is composed of a torsion coil spring. Here, the lock mechanism 11 built in the upper body 1 is
As shown in FIGS. 3A and 3B, it has a lock plate 16 that engages with the open button 9, and the lock plate 16 has a lock plate fulcrum shaft 17 as a fulcrum. Can swing freely in the front and back directions. This lock plate 1
The lock release pin 12 provided so as to project from the inner surface of the lower body portion 2 can be engaged with 6.

The interlocking mechanism 10 incorporated in the upper body 1 is composed of a slide plate 18, a rotary plate 20 and a slide plate 22. That is, the interlocking mechanism 10 can engage one end of the open button 9 with the guide shaft 1.
9, a slide plate 18 that is slidable in the lateral direction of the upper body portion 1, and an upper end portion that can be engaged with the slide plate 18, and a lateral side of the upper body portion 1 with a rotating plate fulcrum shaft 21 in the middle portion as a fulcrum And a rotary plate 20 that can swing in any direction.
And a slide plate 22 which can be engaged with the lower end of the upper body 1 and is slidable along the guide shaft 23 in the lateral direction of the upper body 1. It should be noted that the slide plate 22 is provided with an engaging piece portion 24 capable of engaging with the lower end portion of the rotary plate 20 at one end portion, and a connecting piece portion 25 with respect to the movable boss 30 described later at the other end portion. There is.

As shown in FIGS. 4 and 5, in the hinge device 8, a fixing boss 26, which is a fixing member, is assembled on one end of the shaft member 15, and a fixing piece portion provided on the fixing boss 26 is mounted. 27 is fixed to the lower body portion 2 with screws or the like not shown. This fixed boss 2
In the engaging groove 28 formed in 6, the toggle spring 14
The spring end portion 29 on one end side of the above is hooked. A movable boss 30, which is a movable member, is slidably mounted on the intermediate portion of the shaft member 15, and a connecting piece 31 provided on the movable boss 30 is connected to the connecting piece 25 of the slide plate 22.
Are connected by screws or the like (not shown). A spring end 33 on the other end side of the toggle spring 14 is hooked in a hooking groove 32 formed in the movable boss 26. It should be noted that one connection recess 34 extending in the diametrical direction is formed on the end surface of the movable boss 26 on the side opposite to the hook groove 32.

Further, the torque shaft bush 13 includes a cylindrical inner shaft 35 fitted and assembled on the other end of the shaft member 15, and a rubber bush 36 fitted and assembled on the inner shaft 35. The cylindrical outer shaft 37 is fitted and assembled on the rubber bush 36. The torque shaft bush 13 includes an inner shaft 35 and an outer shaft 37.
Since it uses a rubber bush 36 made of polyurethane rubber interposed between and, it has advantages such as non-lubrication, a friction coefficient that maintains a stable torque value for a long time, and excellent wear resistance and durability. It is optimal for holding the opening / closing member at an arbitrary angle. The torque shaft bushing 13 includes a fixing piece portion 38 provided on the outer shaft 37 of the lower body portion 2.
In the end surface on the movable boss 26 side of the inner shaft 35, one connecting projection 39 extending in the diametrical direction is formed in advance by fixing with a screw or the like (not shown).

From the above open button 9, the interlocking mechanism 1
0, the movable boss 30 having the connection recess 34, and the inner shaft 35 having the connection protrusion 39 in the torque shaft bush 13 constitute a temporary separating means 40. The shaft member 1
A washer 41 is provided at the end of the inner shaft 35 on
A retaining ring 42 is attached. Further, the connection recess 34 of the movable boss 30 and the connection protrusion 39 of the inner shaft 35 can be connected / separated from each other. Therefore, the movable boss 30 and the inner shaft 35 constitute a connection / separation member. ing.

Next, a method of handling a foldable mobile phone having the hinge device 8 having the above-described structure built in the hinge portion 3 will be described. First, when the upper body portion 1 and the lower body portion 2 are opened to each other, the open button 9 engages with the lock plate 16 in the arrow a direction as shown in FIGS. It cannot be pushed to. Further, when the upper body portion 1 and the lower body portion 2 are in a folded state in which they are closed to each other, the lower body portion 2 rotates in the direction of arrow c with respect to the upper body portion 1 as shown by an imaginary line in FIG. Then, the lock release pin 12 engages with the lock plate 16 and pushes it in the direction of the arrow b.
Moves to the position shown by the phantom line in FIG. 3 (b) with the lock plate fulcrum shaft 17 as the fulcrum, so the open button 9 can be pushed in the direction of arrow a to the position shown by the phantom line in FIG. 3 (a). become.

By the way, the open button 9 is clicked as shown in FIG.
In (a), when pushed in the direction of arrow a, the slide plate 18
Moves along the guide shaft 19 in the direction of arrow d to the imaginary line position shown in the figure. As a result, the rotary plate 20 whose upper end engages with the slide plate 18 rotates in the direction of the arrow e to the imaginary line position in the figure with the rotary plate fulcrum shaft 21 in the middle as the fulcrum.
At this time, since the lower end portion of the rotary plate 20 rotates in the direction of arrow f, the slide plate 22 in which the engaging piece portion 24 engages with the lower end portion of the rotary plate 20 is shown in the direction of arrow g along the guide shaft 23. It moves to the virtual line position, that is, the connecting piece 25 at the other end of the slide plate 22 moves in the direction of arrow h. For this reason,
The connecting piece portion 31 is connected to the connecting piece portion 25 at the other end of the slide plate 22.
The movable boss 30 connected to moves in the direction of arrow i shown in FIG. Therefore, the connection between the connection concave portion 34 of the movable boss 30 and the connection projection 39 of the inner shaft 35 is released, and the separated state is established.

Here, as described above, the torque shaft bush 13 is a rubber bush made of polyurethane rubber between the inner shaft 35 and the outer shaft 37, which has a stable friction coefficient for a long period of time and is excellent in wear resistance and durability. A resistance torque force is generated by interposing 36 and changing the relative angle between the inner shaft 35 and the outer shaft 37. Further, as shown in FIG. 5, the toggle spring 14, which is a torsion coil spring, generates rotational force in the arrow k direction at the spring ends 29 and 33 at both ends, and in the winding (coil) part between them. , Generates pressure in the directions of arrows i and j, which are expansion and contraction directions. The torque shaft bush 13 generates a resistance torque force stronger than the unidirectional rotation force of the toggle spring 14 in the arrow k direction.

Therefore, as described above, the open button 9
In the direction of arrow a, and finally slide plate 22
When the movable boss 30 is moved in the direction of the arrow i and moves in the direction of the arrow i, the connection recess 34 of the movable boss 30 and the connection protrusion 39 of the inner shaft 35 are separated from each other, and the torque shaft bush 13 is opened. It will be in the state of being. Therefore, on the shaft member 15, the spring end 29 is hooked in the hooking groove 28 of the fixing boss 26 which fixes the fixing piece 27 to the lower body 2,
The fixed boss 26 and the movable boss 30 are rotated in opposite directions by a unidirectional rotational force in the arrow k direction of the toggle spring 14 in which the spring end 33 is locked in the locking groove 32 of the movable boss 26, and thus the foldable mobile phone. Upper body part 1 of the telephone
And the lower body part 2 rotates around the hinge part 3 and opens. That is, the foldable mobile phone is opened to a position of 180 ° and stopped due to the outer shapes of the upper body 1 and the lower body 2.

At this time, when the open button 9 is released, the open button 9 is restored, and the open button cannot be pressed due to the engagement with the lock plate 7. Along with this, the interlocking mechanism 10 is also restored by the pressure of the toggle spring 41 in the direction of the arrow j, that is, the slide plate 22 is also restored. Therefore, as described above, the connection recess 34
In the movable boss 30 and the inner shaft 35 in which the connection protrusion 39 and the connection protrusion 39 are separated, the connection recess 34 and the connection protrusion 39 are again connected by the pressure of the toggle spring 41 in the direction of the arrow j, and the torque shaft. The bush 13 generates a resistance torque force stronger than the unidirectional rotation force of the toggle spring 14 in the arrow k direction. As a result, in the folding mobile phone, the resistance torque force generated by the torque shaft bush 13 of the hinge device 8 causes the upper body portion 1 and the lower body portion 2 to move to each other 18 times.
It can be stopped at any position in the range from the 0 ° fully open state to the 0 ° fully closed state.

Here, when the upper body 1 and the lower body 2 are folded again, as shown in FIG. 3B, the lock release pin 8 pushes the lock plate 16 in the direction of arrow c. Since the lock of the open button 9 by the lock plate 16 is released, the open button 9 can be pressed. As mentioned above, in the foldable mobile phone,
By pressing the open button 9, the upper body part 1 and the lower body part 2 can be quickly opened to a fully opened state of 180 °, that is, a quick rotation function, that is, a quick open operation can be obtained, and the upper body part 1 and the lower body part 2 can be obtained. The angle holding function, that is, the free stop operation, is obtained such that the motor stops at any position in the range from the 180 ° fully opened state to the 0 ° fully closed state. Moreover, the lock plate 16 and the lock release pin 8
By setting, the open button 9 can be pressed only when folded. Further, in the above first embodiment, the connection recess 34 and the inner shaft 35 of the movable boss 30 are arranged.
Since the connecting projections 39 are shaped so that they are fitted with each other every 180 °, the torque shaft bush 13 can be connected / disconnected every 180 °.

<Modification and Other Application> FIG. 6 shows a modification of the connecting / separating member in FIGS. 4 and 5.
As shown in the drawing, on the end surface of the inner shaft 35 on the movable boss 26 side,
Similar to the above-described first embodiment, one connecting projection 39 extending in the diametrical direction is formed, while the movable boss 26 is formed.
A cross-shaped connecting recess 43 orthogonal to the cross direction is formed on the end surface opposite to the hook groove 32. Such a modification of the connecting / separating member, that is, by forming the cross-shaped connecting concave portion 43 in the movable boss 26, the inner shaft 35 is fitted with one connecting protruding portion 39 so that every 90 °. You can get quick open action. Therefore, it is suitable for application to the devices shown in FIGS. 7 and 8.

FIG. 7 shows a notebook type personal computer as an application example of the hinge device 8 of the first embodiment of the present invention. In such a notebook type personal computer, its main body portion 44 and display portion (lid). Part) 45 and the hinge part 8 according to the present invention is used for the hinge part 46, and one connecting projection 39 of the cross-shaped connecting recess 43 of the movable boss 26 and the inner shaft 35 shown in FIG. Adopt a connection / separation member by fitting with. By doing so, after the display portion 45 is quickly opened from 0 ° to 90 ° indicated by the imaginary line and reference numerals 1 to m in the figure, one of the inner shafts 35 is inserted in the cross-shaped connection concave portion 43 of the movable boss 26. The connection projection 39 of the
It can also be stopped at a position between 0 ° and any backward angle (120 ° in the illustrated example).

FIG. 8 shows a copying machine as an application example of the hinge device 8 according to the first embodiment of the present invention. In such a copying machine, the hinge between the main body portion 47 and the lid portion 48 of the copying machine. The hinge portion 8 according to the present invention is adopted for the portion 49,
Moreover, the cross-shaped connection recess 4 of the movable boss 26 shown in FIG.
A connection / separation member is employed by fitting the connection shaft 3 with the single connection protrusion 39 of the inner shaft 35. By doing so, the lid portion 48 shown in FIG.
After quick opening, one connecting projection 39 of the inner shaft 35 is fitted into the cross-shaped connecting concave portion 43 of the movable boss 26, and the lid portion 48 is moved to an arbitrary rearward angle (denoted by reference numeral q). It can also be stopped at a position between 120 ° and 0 ° in the illustrated example.

If the connection concave portion of the movable boss 26 is subdivided by a power of 2, the quick open angle can be subdivided. In this way, the connection recess of the movable boss 26 is
If it is subdivided by a multiplier of, it becomes possible to fit with one connecting projection 39 of the inner shaft 35 even at a position other than 180 ° or 90 °, so that the lock mechanism 11 of the open button 9 can be deleted. .

<Second Embodiment> FIG. 9 is a schematic front view showing an opening / closing door of a second embodiment to which the hinge device according to the present invention is applied, and FIG. 10 is a second embodiment of the present invention. FIG. 10 is a partially cutaway front view showing the hinge device according to the embodiment of FIG. These FIG. 9 and FIG.
0, as in the first embodiment described above, 13
Is a torque shaft bush (resistance torque generating means), 14 is a toggle spring (rotational force generating means), 15 is a shaft member, 2
6 is a fixed boss (fixing member), 27 is a fixed piece, 29 is a spring end, 30 is a movable boss (movable member), 31 is a connecting piece, 33 is a spring end, 34 is a connection recess, 35
Is an inner shaft, 36 is a rubber bush, 37 is an outer shaft, 38 is a fixed piece, 39 is a connecting protrusion, 41 is a washer, 42 is an E-shaped retaining ring, 51 is an opening / closing door, 52 is a building body, 53
Is a hinge, 54 is a hinge device, 55 is a switching means, 56 is an engaging pin, 57 is a lever, 58 is a rotating shaft, 59 is a switching knob (operating member), 60 is a toggle spring (spring member), and 61 and 63 are The spring ends 62 and 64 are hooking pins.

That is, the opening / closing door 51 to which the present invention is applied is
In the illustrated example, the building main body 52 is assembled so as to be openable and closable by a lower hinge 53 and an upper hinge device 54 according to the present invention. The hinge device 54 is provided with the torque shaft bush 13 which is a resistance torque generating means and the toggle spring 14 which is a rotating force generating means on the shaft member 15 as in the first embodiment. The toggle spring 14 is composed of a torsion coil spring. Further, as shown in FIG. 10, a fixing piece portion 27 provided on the fixing boss 26 on one end of the shaft member 15 and a fixing piece portion 38 provided on the outer shaft 37 of the torque shaft bush 13 are provided.
It is fixed to the building body 52 with screws or the like not shown.

In addition, in the second embodiment, the temporary separating means 40 in the first embodiment described above is used.
Instead of the resistance torque generating means (torque shaft bush) 1
A switching means 55 for connecting / disconnecting 3 and the rotational force generating means (toggle spring) 14 is provided. That is, as shown in FIG. 10, the engaging pin 56 is provided on the connecting piece 31 provided on the movable boss 30 on the intermediate portion of the shaft member 15, and the engaging pin 56 is engaged with the forked portion of the lever 57. To do. This lever 5
7 is integrated with a rotary shaft 58 that is rotatably provided on the opening / closing door 51, and the rotary shaft 58 is further provided with a switching knob 59 that is an operating member. A toggle spring 60, which is a spring member, is connected to the switching knob 59.

The toggle spring 60 is composed of a torsion coil spring, and one spring end portion 61 of the toggle spring 60 is provided with a latch pin 62 provided on a switching knob 59.
The spring end 63 on the other side of the opening / closing door 5.
It is hooked on the hooking pin 64 provided in 1. As described above, in the hinge device 54 of the opening / closing door 51, the switching unit 55 that connects / disconnects the inner shaft 35 of the torque shaft bush 13 and the movable boss 30 on the toggle spring 14 side is configured.

Next, how to use the opening / closing door 51 using the hinge device 54 having the above configuration will be described. FIG.
As shown in FIG. 0, first, when the switching knob 59 is switched in the direction of the arrow r (upward in the drawing), the movable boss 30 is rotated through the lever 57 and the engaging pin 56 integral with the rotating shaft 58 and the connecting piece 31. On the member 15 in the direction of arrow t (downward in the figure)
Go to As a result, the movable boss 30 is separated from the inner shaft 35 of the torque shaft bush 13, and the torque shaft bush 1
Since 3 and the toggle spring 14 are separated, the opening / closing door 51 receives the rotational force of the toggle spring 14,
The opening / closing door 51 is closed. That is, the quick closing operation of the opening / closing door 51 is performed.

As shown by the phantom line in FIG. 10, when the switching knob 59 is switched in the direction of arrow s (downward in the figure), the movable boss 30 moves on the shaft member 15 in the direction of arrow u (upward in the figure). To do. As a result, the torque shaft bush 1
The connection projection 39 of the inner shaft 35 of the third shaft 3 and the connection recess 34 of the movable boss 30 are fitted to each other to connect the torque shaft bush 13 and the toggle spring 14. Therefore, the opening / closing door 51 has
Due to the resistance torque force of the torque shaft bush 13, the opening / closing door 51 can be stopped at any position. That is, the free stop operation of the opening / closing door 51 can be obtained.

As described above, in the opening / closing door 51, when the torque shaft bush 13 and the toggle spring 14 are connected / disconnected by operating the switching knob 59, a rotational force in one direction is always applied (in this embodiment, in this embodiment). It is possible to freely select (quick close) and a case where it can always stop at any arbitrary angle (free stop).

<Modification> In the second embodiment, the unidirectional rotational force of the toggle spring 14 is set to the direction of closing the opening / closing door 51. As a modified example, the unidirectional rotational force of the toggle spring 14 is used. The opening / closing door 51 may be opened. When the rotational force in one direction of the toggle spring 14 is set in the direction in which the opening / closing door 51 is opened, it is separated from the torque shaft bush 13 by the operation of the switching knob 59, and the rotational force of the toggle spring 14 works to set it in advance. The opening / closing door 51 is always opened to an angle (quick open), and the torque shaft bush 13 and the toggle spring 14 are connected so that the opening / closing door 5 is always opened at any angle.
1 can be stopped. Also, the torque shaft bush 1
For example, if the connecting projection of the inner shaft 35 of 3 has a round pin shape and the connecting recess of the movable boss 30 has a hole or notch shape corresponding to the round pin shape, the opening / closing angle by the toggle spring 14 can be changed. Other than 180 ° and 90 °
It can be subdivided into 120 °, 60 °, etc.

<Third Embodiment> FIG. 11 shows a folding portable telephone according to a third embodiment to which the hinge device according to the present invention is applied. (A) shows a folded state. FIG. 12B is a perspective view showing a developed state, and FIG. 12 is a perspective front view showing the hinge device of the foldable mobile phone in the developed state. In addition, FIG.
12 is an enlarged front view of the hinge device portion shown in FIG. 12, and FIG. 14 is an exploded perspective view showing components of the hinge device. FIG. 15 is a fragmentary front view showing the enlarged quick closing function state by the hinge device of FIG. 13, and FIG. 16 is a fragmentary front view enlarged view of the free stop function state by the hinge device. Is.

11 to 16, 1 is an upper body portion (opening / closing member), 2 is a lower body portion (opening / closing member), 3 is a hinge portion, as in the above-described first embodiment. 4 is a display unit, 5 is a speaker, 6 is an operation key unit, 7 is a microphone, 70 is a hinge device, 71 is a shaft member, 7
1a is a pin hole, 71b is a flat part, 72 is a bearing holder, 7
3 is a torque shaft bush (resistive torque generating means), 74 is an inner shaft, 75 is a rubber bush, 76 is an outer shaft, 77 is a fixed piece portion, 78 is an inner shaft projection (connection projection), 79 is a fixed cam,
79a is an outer shaft protrusion, 79b is an outer shaft recess, 80 is a toggle spring (rotational force generating means), 81 and 82 are spring ends, 83 is a fixed boss (fixing member), 84 is a fixed piece,
Reference numeral 85 is a latch groove, 86 is a movable boss (movable member), 87 is a latch groove, 88 is a connection recess, 89 is a long hole, 90 is a movable cam,
Reference numeral 91 is a connecting pin, and 92 is a switching means. In the third embodiment, the same folding type mobile phone as that of the first embodiment described above is used, with the opening and closing operations of the upper body portion 1 and the lower body portion 2 of the folding mobile telephone set at a predetermined angle. The hinge device 70 is configured to switch between the quick close region and the free stop region.

That is, in the hinge device 70, on the shaft member 71 fixed to the upper body portion 1, the torque shaft bush 73 which is a resistance torque generating means, the toggle spring 80 which is a rotating force generating means, and the fixing boss which is a fixing member. 83 and a movable boss 86 which is a movable member. First, as shown in FIG. 14, the shaft member 71 has a pin hole 71a in the middle portion.
And has flat portions 71b, 71b at both ends. At both ends 71b, 71b, as shown in FIG. 13, fixed to the upper body portion 1 with screws by bearing holders 72, 72. There is. And the torque shaft bush 7
As shown in FIG. 13 and subsequent drawings, 3 is composed of an inner shaft 74, a rubber bush 75 and an outer shaft 76, as in the above-described first embodiment, and a fixing piece 77 is formed on the outer shaft 76. Thus, an inner shaft protrusion 78 that forms a connection protrusion is formed on the inner shaft 74. The torque shaft bush 73 is shown in FIG.
As shown in, it is fixed to the lower body portion 2 with screws. In addition, a fixed cam 79 is formed on the outer shaft 76 along the circumferential direction on the end surface thereof.
As shown in FIG. 14 and subsequent figures, the outer shaft projection 79a and the outer shaft recess 79b are formed in a smooth shape in the circumferential direction.

Further, the toggle spring 80 is shown in FIG.
As will be shown below, as in the case of the first embodiment described above, one spring end 81 is locked in the locking groove 85 of the fixing boss 83 having the fixing piece 84, and the other spring end 81 is locked. The portion 82 is configured to be engaged with a retaining groove 87 of a movable boss 86 having a connection recess 88. The fixed boss 83 is fixed to the lower body portion 2 with screws, as shown in FIG. The movable boss 86 is shown in FIG.
As shown below, a pair of elongated holes 89, 89, which are diametrically opposed to each other and are long in the axial direction, are formed, and a smooth projecting shape along the circumferential direction is movable from the end surface on the torque shaft bush 73 side. A cam 90 is formed. The movable boss 86 has a pair of elongated holes 89, 89 and a connecting pin 91 penetrating the pin hole 71a of the shaft member 71, so that the connecting pin 91 faces the shaft member 71 in the rotational direction integrally.
Of the length (see width m-n in FIG. 14) is movably assembled in the axial direction. With the cam mechanism including the movable cam 90 of the movable boss 86 and the fixed cam 79 of the torque shaft bush 73 described above, the quick movement is made at a predetermined angle in conjunction with the opening / closing operation of the upper body 1 and the lower body 2. A switching means 92 for switching between the closed area and the free stop area is configured.

Next, a method of handling a foldable portable telephone in which the hinge device 70 having the above-mentioned configuration is built in the hinge portion 3 will be described. First, FIG. 15 shows that the upper body 1 and the lower body 2 are in a folded state as shown in FIG. 1A from 0 ° to θ ° (where θ ° is the fixed cam 7).
9 shows the state of the hinge device 70 when the hinge device 70 is opened up to an arbitrary setting such as 60 ° depending on the profile relationship between the movable cam 90 and the movable cam 90. In this state, as shown in the drawing, the movable cam 90 of the movable boss 86, which is axially biased by the toggle spring 80, causes the movable cam 90 of the movable boss 86 to move.
Since it abuts the fixed cam 79 (outer shaft protrusion 79a) of No. 3, the inner shaft protrusion 78 of the torque shaft bush 73 does not mesh with the connection recess 88 of the movable boss 86, and the torque force of the torque shaft bush 73 is not transmitted. . Therefore, the shaft member 71
Rotational force of the toggle spring 80 acts on the movable boss 86 assembled by the pin 91, and torque acts on the upper body 1 and the lower body 2 in the closing direction. Therefore, the relative angle between the upper body 1 and the lower body 2 is 0 ° to θ °.
Up to (for example, 60 °), the quick close function works.

FIG. 16 shows a state of the hinge device 70 when the upper body 1 and the lower body 2 are opened from θ ° (which is set arbitrarily) to 180 °. In this state, as shown in the figure, the movable cam 90 of the movable boss 86 is fixed to the fixed cam 79 of the torque shaft bush 73 (outer shaft recess 79b).
As it enters, the inner shaft protrusion 78 of the torque shaft bush 73 meshes with the connection recess 88 of the movable boss 86, and the torque of the torque shaft bush 73 is transmitted to the movable boss 86. Therefore, when the relative angle between the upper body portion 1 and the lower body portion 2 is from θ ° (for example, 60 °) to 180 °, the torque shaft bush 73 has a free stop function of stopping at any angular position.

As described above, in the folding mobile phone, when the upper body 1 and the lower body 2 are opened by hand and the angles of the upper body 1 and the lower body 2 exceed θ ° (arbitrary set angle). In the range up to the fully opened state of 180 °, a free stop operation of stopping at an arbitrary angular position can be obtained. Then, in the process of manually closing the upper body portion 1 and the lower body portion 2 from the free stop operation range as described above, the angle between the upper body portion 1 and the lower body portion 2 becomes θ.
When the angle is less than ° (arbitrary set angle), a quick close operation in which the upper body portion 1 and the lower body portion 2 are instantly closed is obtained.

In each of the above embodiments,
Although the hinge device uses the torque shaft bush, the present invention is not limited to this, and a hinge device using other resistance torque generating means may be used. Further, the hinge device according to the present invention may be used and used in an arbitrary manner, and it is needless to say that the specific detailed structure and the like can be appropriately changed.

[0061]

As described above, according to the hinge device according to the invention described in claim 1, since it comprises the rotational force generating means, the resistance torque generating means, and the temporary separating means for both of them, the resistance is increased. It is possible to obtain a quick rotation function of the opening / closing member in one direction by the rotational force generating means in a state of being separated from the torque generating means, and an arbitrary angle of the opening / closing member by the resistance torque generating means in a state of connection with the rotating force generating means. The angle holding function can be obtained. Therefore, according to the specifications of the opening / closing member, while the swiveling operation can be performed quickly, an arbitrary angle can be held by the resistance torque, which is convenient as a hinge device.

According to the hinge device of the second aspect of the present invention, the temporary separating means of the first aspect separates the resistance torque generating means and the rotational force generating means in association with the operation of the operating member. In addition, since the interlocking mechanism that returns to the initial state by the rotational force generating means is provided after the separation, the resistance torque generating means is separated from the resistance torque generating means in accordance with the invention according to claim 1. After the quick rotation function of the opening / closing member in one direction is obtained by the rotational force generating means, the function of holding the opening / closing member at an arbitrary angle by the resistance torque generating means connected to the rotational force generating means can be obtained.

Further, according to the hinge device of the invention described in claim 3, first, the lock device is provided for the operating member after the resistance torque generating means and the rotational force generating means are separated from each other. As described above, after the quick rotation function of the opening / closing member in the opening direction is obtained by the rotational force generating means in the separated state from the resistance torque generating means, the operation member cannot be operated by the lock mechanism, and the resistance torque generating means is operated. And the torque generating means can be connected again, that is,
It is possible to obtain an angle holding function of the opening / closing member at an arbitrary angle by the resistance torque generating means. The lock releasing member is provided for releasing the locked state of the operating member when the opening / closing member is closed. Therefore, when the opening / closing member is closed, the locked state of the operating member is released by the lock releasing member. As in the invention described above, the quick rotation function of the opening / closing member in one direction by the rotational force generating means separated from the resistance torque generating means can be obtained again in association with the manual operation.

Further, according to the hinge device of the invention as defined in claim 4, since it comprises the rotational force generating means, the resistance torque generating means, and the switching means for connecting and disconnecting the both, the switching means Depending on the operation, in the separated state from the resistance torque generating means, a quick rotation function of the opening / closing member in one direction by the rotation force generating means can be obtained, and the resistance torque generation can be performed in the connection state with the rotating force generating means. It is possible to obtain an angle holding function of the opening / closing member to an arbitrary angle by the means. Therefore, according to the specifications of the opening / closing member, while the swiveling operation can be performed quickly, an arbitrary angle can be held by the resistance torque, which is convenient as a hinge device.

According to the hinge device of the fifth aspect of the invention, the switching means of the fourth aspect causes the operating member to operate as the resistance torque generating means and the rotational force generating means in association with the operation of the operating member. Since the spring member for maintaining the connected state and the separated state is provided, the opening / closing member by the rotational force generating means separated from the resistance torque generating means is interlocked with the manual operation in association with the manual operation. It is possible to arbitrarily select a state in which a quick rotation function in one direction is obtained and a state in which an angle holding function of the opening / closing member at an arbitrary angle is obtained by the resistance torque generating means connected to the rotating force generating means. it can.

According to a sixth aspect of the present invention, in the hinge device, the switching means according to the fourth aspect is interlocked with the opening / closing operation of the opening / closing member and the rotational force generating means and the resistance torque are separated at a predetermined angle. The cam mechanism for switching the generating means between the separated state and the connected state is used. Therefore, the cam mechanism that interlocks with the opening / closing operation of the opening / closing member does not require any external operation, and the predetermined angle is set as a boundary. Like the invention,
An angle region for obtaining a quick rotation function in one direction of the opening / closing member by the rotational force generating means separated from the resistance torque generating means,
It can be divided into an angle region in which the opening / closing member is held at an arbitrary angle by the resistance torque generating means connected to the rotational force generating means.

According to the hinge device of the invention described in claim 7, the cam mechanism according to claim 6 includes a movable cam provided on one of the rotational force generating means and the resistance torque generating means. 7. The invention according to claim 6, which has a function of moving in the axial direction in conjunction with the opening / closing operation of the opening / closing member by engaging with a fixed cam provided on the other side of the rotational force generating means or the resistance torque generating means. As described above, one direction of the opening / closing member by the rotational force generating means is separated by a predetermined angle by the engaging relationship between the movable cam and the fixed cam interlocked with the opening / closing operation of the opening / closing member without any external operation. It can be divided into a rapid rotation region and a region for holding an arbitrary angle of the opening / closing member by the resistance torque generating means.

[Brief description of drawings]

FIG. 1 shows a foldable mobile phone according to a first embodiment to which a hinge device according to the present invention is applied.
Is a perspective view showing a folded state, and (b) is a perspective view showing a developed state.

2 shows the internal mechanism of the foldable mobile phone in the unfolded state of FIG. 1 (b), (a) being a front view, FIG.
(B) is a side view.

3A and 3B show details of a portion A in FIGS. 2A and 2B, in which FIG. 3A is an enlarged front view and FIG. 3B is an enlarged side view.

FIG. 4 is a partially cutaway front view showing an enlarged main part of the hinge device according to the first embodiment of the present invention.

5 is an exploded perspective view showing components of the hinge device of FIG. 4. FIG.

6 is an exploded perspective view showing a modified example of the connection / separation member in FIGS. 4 and 5. FIG.

FIG. 7 is a schematic side view showing a notebook computer as an application example of the hinge device according to the first exemplary embodiment of the present invention.

FIG. 8 is a schematic side view showing a copying machine as an application example of the hinge device according to the first exemplary embodiment of the present invention.

FIG. 9 is a schematic front view showing an opening / closing door of a second embodiment to which a hinge device according to the present invention is applied.

FIG. 10 shows a hinge device according to a second embodiment of the present invention, and is a partially cutaway front view in which part B of FIG. 9 is enlarged.

FIG. 11 shows a foldable mobile phone of a third embodiment to which a hinge device according to the present invention is applied,
(A) is a perspective view showing a folded state, and (b) is a perspective view showing a developed state.

FIG. 12 is a perspective front view showing a hinge device (rotating shaft unit) of the foldable mobile phone in the unfolded state of FIG. 11 (b).

13 is a cutaway front view showing the hinge device portion of FIG. 12 in an enlarged manner.

FIG. 14 is an exploded perspective view showing components of the hinge device of FIG.

FIG. 15 is a fragmentary front view showing an enlarged view of a quick closing function state by the hinge device of FIG.

16 is a fragmentary front elevational view showing a free stop function state enlarged by the hinge device of FIG.

[Explanation of symbols]

 1, 2 Opening / Closing Member 3 Hinge Unit 8 Hinge Device 9 Operating Member 10 Interlocking Mechanism 11 Locking Mechanism 12 Lock Release Member 13 Resistance Torque Generating Means 14 Rotating Force Generating Means 15 Shaft Member 16 Lock Plate 18 Sliding Plate 20 Rotating Plate 22 Sliding Plate 26 Fixed member 30 Movable member 34 Connection recess 35 Inner shaft 36 Rubber bush 37 Outer shaft 39 Connection protrusion 40 Temporary separating means 43 Cross-shaped connection recess 51 Opening door 54 Hinge device 55 Switching means 57 Lever 59 Operating member 60 Spring member 70 Hinge device 71 Shaft member 71a Pin hole 71b Flat portion 73 Resistance torque generating means 74 Inner shaft 75 Rubber bush 76 Outer shaft 78 Connection protrusion 79 Fixed cam 79a Outer shaft protrusion 79b Outer shaft recess 80 Rotational force generating means 83 Fixing member 86 Movable member 88 Connection recess 89 Long hole 90 movable cam 91 connecting pin 92 switching means

Claims (7)

[Claims] 1. A rotating force generating means for generating a rotating force for rotating the opening / closing member in one direction, and for holding the opening / closing member at an arbitrary angle in a state of being connected to the rotating force generating means. And a resistance torque generating means for generating a resistance torque exceeding the torque generated by the torque generating means, and a temporary separating means for temporarily separating the resistance torque generating means and the torque generating means. A quick rotation function of rapidly rotating the opening / closing member in one direction by the rotational force generating means in a state of being separated from the resistance torque generating means by the temporary separating means, and the rotating force generating means by the temporary separating means. An angle holding function of holding the opening / closing member at an arbitrary angle by the resistance torque generating means in a connected state. 2. The temporary separating means separates the operating member and the resistance torque generating means and the rotational force generating means in conjunction with the operation of the operating member, and after the separating, the rotating force. The hinge device according to claim 1, further comprising: an interlocking mechanism that returns to the initial state by the generating means. 3. A lock mechanism for holding the operating member in an inoperable locked state after separating the resistance torque generating means and the rotational force generating means, and the lock mechanism for holding the operating member in the closed state by the lock mechanism. The lock device according to claim 2, further comprising a lock releasing member that releases the locked state of the operating member. 4. A rotating force generating means for generating a rotating force for rotating the opening / closing member in one direction, and for holding the opening / closing member at an arbitrary angle in a state of being connected to the rotating force generating means. It comprises resistance torque generating means for generating a resistance torque exceeding the torque generated by the torque generating means, and switching means for connecting / disconnecting the resistance torque generating means and the torque generating means. A quick rotation function of rapidly rotating the opening / closing member in one direction by the rotational force generating means in a separated state from the resistance torque generating means, and the opening / closing member in a connected state with the rotational force generating means by the switching means. A hinge device having an angle holding function of holding the resistance torque generating means at an arbitrary angle. 5. The switching means holds an operating member and the operating member in a connected state and a disconnected state of the resistance torque generating means and the rotational force generating means, respectively, in association with the operation of the operating member. The hinge device according to claim 4, comprising a spring member. 6. The switching means is interposed between the rotational force generating means and the resistance torque generating means, and is interlocked with an opening / closing operation of the opening / closing member, and rotates at a predetermined angle of the opening / closing member. The hinge device according to claim 4, wherein the hinge mechanism is a cam mechanism that switches the force generating means and the resistance torque generating means between a separated state and a connected state. 7. A movable cam provided on the side of either one of the rotational force generating means and the resistance torque generating means, and mounted on a shaft member so as to be movable in the axial direction integrally in the rotational direction. And, provided on the other side of the rotational force generating means or the resistance torque generating means, engaged with the movable cam, and
7. The hinge device according to claim 6, further comprising: a fixed cam that moves the movable cam in the axial direction in association with the opening / closing operation of the opening / closing member.