JP2003021134A - Hinge device and electronic apparatus using hinge device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic apparatus using a hinge device forcing in an unlocking operation part and automatically rotating it even when it is a heavy opening and closing member and capable of automatically rotating and opening by weak control force even with a composition provided with a block energizing function. SOLUTION: A holding spring body 4 energizing holding and having expansion resisting elasticity is fit on a rotating part 3 provided in a fixed state on either one of a first member or a second member and rotating along with rotation of either one. An outline of the rotating part 3 is composed so as to generate cam rotation energizing force, a rotation energizing mechanism 5 is provided energizing relative rotation in a reverse rotating direction, it is set so that the cam rotation energizing force by the holding spring body 4 is larger than relative rotation energizing force, the holding spring body 4 is composed so as to relatively move away from the rotating part 3, the unlocking operation part 7 is provided relatively moving the holding spring part 4 away from the rotating part 3, and the holding spring body 4 is separated to a position not generating the cam rotation energizing force from the rotating part 3 by an operation of the unlocking operation part 7. By this, an automatically relatively rotating composition is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge device for pivotally attaching a first member and a second member, for example, a base end portion of the first member and a second member are pivotally attached to each other, and both are superposed. The present invention relates to a hinge device that can be opened and closed from the closed state to an open state in which either one of the first member and the second member is rotated to a predetermined opening angle, and an electronic device using the hinge device, such as a mobile phone and a laptop computer. It is a thing.

[0002]

2. Description of the Related Art For example, in a portable telephone as a typical example of portable electronic equipment, a flip type in which a flip is openably and closably attached to a portable telephone body, and a flip type without a flip are provided. An integral type is known. The integrated type is superior in terms of weight saving and convenience, but the flip type is superior in terms of preventing malfunction of switches, compactness, and variety of designs.

In a portable electronic device of the type having such a flip, it is required to open and close the flip easily by one-touch type.

However, when the conventional hinge device is applied to the connection of the flip to the body of the portable telephone, the flip rotation lock mechanism and the drive mechanism such as a button for releasing the lock are combined with the hinge device. Since it was required separately, the number of parts was increased, and there was a problem that it was necessary to provide a space for it.

Therefore, the applicant of the present invention is the WO published internationally.
As disclosed in Japanese Patent Application Laid-Open No. 00/50780, it is possible to open and close with one touch, but it is not necessary to provide a separate mechanism for an opening / closing lock on the device side, which simplifies the structure of the portable electronic device and saves space. We developed a hinge device that can contribute.

When this device is applied to a flip type portable telephone as described above, for example, the lock release operation portion (push-in button) provided in this hinge device is urged to be occluded simply by pushing it with a finger. The flips are configured to automatically open and rotate at once.

The hinge device that performs the automatic opening / closing function is
Although it is an epoch-making hinge device that realizes a structure that automatically opens and closes with one touch while performing the closing biasing function, this rotation biasing mechanism for automatically opening all at once is assumed to generate a strong biasing force. There must be.

For example, if the flip is heavy, it needs a sufficient torque to release it, and even if the flip can be designed to be relatively lightweight, it does not compare with the LCD side of a notebook type personal computer. In order to automatically rotate the open / close lid, etc., a fairly strong torque is required.

That is, for example, a torque spring that stores a twisting force by moving from an open position to a closed position is used as the rotation urging mechanism, and a cam engagement mechanism is used as a closing urging mechanism that overcomes the automatic rotation urging force of the torque spring. By adopting a combined structure, the rotation biasing is blocked by this cam engagement, and the release operation part (push button) is pushed to separate the cam engagement in the engaged state, and by this cam engagement release, This can be realized by automatically rotating one of the cam engagements by the rotation urging mechanism. However, as described above, when the rotation urging is performed by a strong torque spring, that is, a heavy flip or opening and closing. When a strong torque spring is used so that the lid etc. can be automatically rotated all at once with a push button, in order to make the closing biasing mechanism function against this, in other words, do not push the push button yet. To come in order to hold the closed state, should become not block this strong rotational torque as powerful cam engagement. That is, in order to prevent the cam engagement from being disengaged by the rotation urging mechanism, one cam portion of the cam engagement that is moved apart by the push button is pressed by the strong support spring to firmly hold the cam engagement. I need to keep it.

However, if the support spring is made strong, the support spring resists the separation movement of the cam portion, so that the push button must be pushed in considerably strongly.

In other words, the one-touch type rotation which prevents the automatic rotation by the closing bias due to the cam engagement so far, disengages the cam engagement by the push button to engage and disengage, and thereby automatically opens and rotates. In the dynamic opening / closing structure, the larger the turning biasing force of the turning biasing mechanism (the turning torque for automatic turning), the stronger the force required for the release operation by the push button. is there.

The present invention has been further researched and solved such a problem. For example, in the case of having an automatic opening / closing function of automatically pressing the unlocking operation unit, which is a one-touch opening / closing operation unit, to open it, A structure having a strong rotation urging force for automatically rotating a heavy opening / closing member, and a structure having a closing urging function for blocking this,
An object of the present invention is to provide an epoch-making hinge device and an electronic device using the hinge device, which can release the blocking bias that has been stopped by a weak operating force (that is, can be automatically opened and rotated by a weak operating force). I am trying.

[0013]

The gist of the present invention will be described with reference to the accompanying drawings.

A hinge device for pivotally attaching a first member 1 and a second member 2 to one of the first member 1 and the second member 2 in a fixed state. A rotating portion 3 that rotates with the rotation of either one of the second members 2.
A clamping spring body 4 having a biasing force and an anti-expansion elasticity is fitted and disposed on the above, and the outer shape of the rotating portion 3 is set to a predetermined cam shape having a different radial dimension depending on the rotating position. Spring body 4
The rotating portion 3 is clamped by the clamp spring body 4
A cam rotation biasing force that causes relative rotation with respect to the cam rotation bias is generated, and the rotation portion 3 is rotated relative to the holding spring body 4 in a direction opposite to the cam rotation bias. The rotation biasing mechanism 5 is provided, and the cam rotation biasing force of the sandwiching spring body 4 is set to be larger than the relative rotation biasing force of the rotation biasing mechanism 5. When the holding spring body 4 is fitted on the portion 3 and the cam rotation biasing force can be generated, the relative rotation biasing force of the rotation biasing mechanism 5 does not automatically cause relative rotation. Then, the holding spring body 4 is configured so as to be capable of moving away from the rotating portion 3 relative to the rotating portion 3, and the lock releasing operation portion 7 for moving the holding spring body 4 away from the rotating portion 3 relatively. Is provided, and the holding spring body 4 is moved forward from the rotating portion 3 by operating the lock release operating portion 7. The rotation biasing mechanism 5 automatically causes the rotation portion 3 to relatively rotate with respect to the holding spring body 4 by separating the cam rotation biasing force to a position where it cannot be generated. The present invention relates to a hinge device.

Further, the base end portions of the first member 1 and the second member 2 are pivotally attached to each other, and either one of the first member 1 and the second member 2 is opened at a predetermined opening angle from the closed state in which both are overlapped. A hinge device that can be opened and closed in an open state rotated up to, and is fixedly provided on either one of the first member 1 and the second member 2, and one of the first member 1 and the second member 2 Of the first member 1 and the second member 2 in a fixed state, and the other of the first member 1 and the second member 2 And a holding spring body 4 which rotates in accordance with the rotation of the holding portion, and the holding spring body 4 having anti-expansion elasticity that presses the rotating portion 3 with a holding bias and is fitted to the rotating portion 3. Then, the outer shape of the rotating portion 3 is set to a predetermined cam shape having a different diameter dimension depending on the rotating position, and It is configured to generate a cam rotation urging force that rotatably rotates the rotating portion 3 with respect to the holding spring body 4 to close and urge it to the closed state by the holding pressure. A rotation urging mechanism 5 for urging the spring body 4 to rotate in a direction opposite to the cam rotation urging is provided, and the rotation urging mechanism 5 urges the spring body 4 to open to an open state. By setting the cam rotation biasing force, which is the closing bias by the sandwiching spring body 4, to be larger than the relative rotation biasing force, the sandwiching spring body 4 is fitted on the rotating portion 3. In the state where the cam rotation biasing force that causes the closing bias is generated by the holding spring body 4, the relative rotation biasing force that causes the opening biasing by the rotation biasing mechanism 5 does not automatically cause relative rotation. The holding spring body 4 is configured to be held in the closed state, and the holding spring body 4 relative to the rotating portion 3. A lock release operation unit 7 is provided which is configured to be able to move away from and move the release spring unit 4 relatively away from the rotating unit 3, and the operation of the lock release operation unit 7 causes the release spring unit 4 to rotate. By moving the moving portion 3 away from the cam to a position where the cam rotation biasing force cannot be generated, the rotation biasing mechanism 5 causes the rotation portion 3 to move.
2. The hinge device according to claim 1, wherein the hinge device is configured to automatically rotate relative to the holding spring body 4 in a direction in which it is opened.

Further, the holding spring body 4 is provided with the rotating portion 3
The hinge device according to any one of claims 1 and 2, wherein the hinge device comprises a hugging spring having a pair of opposed portions that press the pinch with a biasing force.

Further, the holding spring body 4 is composed of a holding type leaf spring having a pair of opposing plate portions for pressing the rotating portion 3 to be held, and the rotating portion 3 is provided by the holding and pushing of the opposing plate portion. Is formed so that the cam rotation biasing force that causes the cam to rotate in a rotation posture in which the outer diameter dimension of the rotation angle becomes smaller, or a part of the rotation portion 3 is formed with an R surface or an inclined surface that generates a cam rotation force as a cam shape portion. Then, by sandwiching and pressing this cam-shaped part,
The hinge device according to claim 3, wherein the cam rotation biasing force is generated.

Further, the holding spring body 4 is constructed by stacking a plurality of holding type leaf springs having a pair of opposed plate portions for pressing the turning portion 3 to be held by the turning biasing mechanism 5. 5. The hinge device according to claim 4, wherein the cam rotation urging force is generated by a clamping urging force that is greater than the relative rotation urging force.

A guide portion 9 for guiding the holding spring body 4 to move away from the support elastic portion 8 is connected to the tip end side of the rotating portion 3, and the rotating biasing mechanism 5 is provided. Thus, at the rotating position where the rotating portion 3 is automatically rotated relative to the holding spring body 4, the holding spring body 4 separated from the position for holding the guide portion 9 is the holding spring. At the rotation position where the body 4 and the rotation portion 3 cannot be moved back to the engaged position and the automatic relative rotation by the rotation urging mechanism 5 is completed or the predetermined rotation position is completed. The guide portion 9 is set to have a shape in which the holding spring body 4 is automatically returned to the engagement position by the restoring force of the support elastic portion 8 and the automatic relative rotation is finished. 1
The present invention relates to the hinge device according to any one of 5 to 5.

Further, a guide body 9 for guiding the separating movement of the rotating portion 3 or the holding spring body 4 continuously provided at the tip of the rotating portion 3 is provided with the rotating portion 3 by the rotating biasing mechanism 5. 7. A holding engagement portion 11 that engages with an engagement portion 10 that holds a rotation position at which automatic relative rotation of the holding spring body 4 ends is provided. The invention relates to the hinge device described in the item.

Further, the lock release operating portion 7 pushes and separates the holding spring body 4 from the rotating portion 3 against the elastic support portion 8 by the push operating portion 7A and the push operating portion 7A. The hinge device according to any one of claims 1 to 7, wherein the hinge device comprises an operating rod portion 7B.

Further, the present invention relates to an electronic device using a hinge device, wherein the hinge device according to any one of claims 1 to 8 is provided in a pivot portion.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION A preferred embodiment of the present invention (how to carry out the invention) will be briefly described with reference to the drawings and showing its function and effect.

When the holding spring body 4 is biased by the rotation biasing mechanism 5 with respect to the rotation portion 3, for example, the rotation portion 3
In the state where the holding spring body 4 and the holding spring body 4 are engaged with each other, the holding portion 4 holds and presses the rotating portion 3 having a predetermined cam shape to prevent the rotation portion 3 from rotating. The holding spring body 4 does not automatically rotate with respect to the portion 3.

On the other hand, when the lock release operating portion 7 is operated to separate the holding spring body 4 from the rotating portion 3 and the rotation stop state by the holding pressing of the holding spring body 4 is released, the turning operation is performed. The urging mechanism 5 automatically rotates the holding spring body 4 with respect to the rotating portion 3. That is, the unlock operation section 7
When is operated, one of the first member 1 and the second member 2 automatically rotates with respect to the other.

Therefore, while having a function of automatically rotating by operating the unlocking operation portion 7, the automatic rotation is prevented by the fitted engagement between the rotating portion 3 and the holding spring body 4, and the rotating portion is also provided. The cam shape of 3 can be configured to generate a cam rotation biasing force in the reverse rotation direction, and the rotation biasing mechanism 5
The rotation stopping force that prevents automatic rotation by
Of the cam urging force of the cam shape and the holding spring body 4 that presses the cam shape.
When the automatic rotation urging force is increased, the clamping urging force of the clamping spring body 4 may be strengthened. Therefore, the bearing for supporting the fitted engagement between the rotating portion 3 and the clamping spring body 4 is supported. Even if the elastic portion 8 is provided, it is not necessary to strengthen the support elastic portion 8,
The operation force of the lock release operation portion 7 for separating the holding spring body 4 from the rotating portion 3 against the elastic support portion 8 is weak.

The proximal ends of the first member 1 and the second member 2 are pivotally attached to each other, and the second member 2 is rotated to a predetermined opening angle with respect to the first member 1 from a closed state in which the two members overlap. The present invention is applied to a hinge device that can be opened and closed in a moved open state. For example, a rotating portion 3 is provided in a fixed state (rotational state) with respect to the first member 1 and a second member 2 that is opened and rotated is provided. The holding spring body 4 is provided in a fixed state (rotational state), and the holding spring body 4 is urged to rotate in the opening direction by the rotation urging mechanism 5, and the rotation urging mechanism 5 of the holding spring body 4 is also provided. In order to prevent the automatic rotation by the holding mechanism, the holding spring body 4 is fitted to the turning portion 3 having a predetermined cam shape, and the holding spring body 4 holds the holding spring body 4 or presses the holding spring body 3 against the turning of the turning portion 3. Body 4
If the cam pressing force of the rotating biasing mechanism 5 is stronger than that of the automatic rotating force of the rotating biasing mechanism 5, the pressing force of the clamping spring body 4 in the closing direction causes The automatic rotation of the holding spring body 4 is prevented.

Therefore, for example, in the closed state in which the first member 1 and the second member 2 are overlapped with each other, the rotating portion 3 and the holding spring body 4 are engaged with each other, and the cam rotation by the holding spring body 4 is performed. It is prevented from rotating (opening) by the biasing force, or depending on the setting of the cam shape of the rotating portion 3 and the sandwiching pressing force of the sandwiching spring body 4, it is still closed and biased by the cam rotating biasing force in the closed state. And the unlocking operation unit 7
When the holding spring body 4 is moved away from the rotating portion 3 by operating, the cam rotation urging force acting in the closing direction is released, and the holding spring body 4 is automatically moved by the rotation urging mechanism 5. Then, the second member 2 is automatically opened and rotated with respect to the first member 1 all at once to be in the open state.

Therefore, for example, since the second member 2 is heavy, when the rotation urging force of the rotation urging mechanism 5 is constituted by a strong spring, a strong cam rotation urging force (rotation stop) against this is exerted. Holding force), but
In this case, the holding spring body 4 having a strong holding bias (strong anti-expansion elasticity) may be adopted so that a strong cam rotation biasing force against this is generated. Therefore, for example, even if the support elastic portion 8 that supports the fitted engagement between the rotating portion 3 and the sandwiching spring body 4 is provided, the supporting elastic portion 8 is a strong spring depending on the strength of the rotating biasing force. Therefore, the pushing operation force for pushing the holding spring body 4 of the unlocking operation portion 7 to separate the holding spring body 4 may be weak.

[0030]

Embodiments of the present invention will be described with reference to the drawings.

In this embodiment, the base end portions of the first member 1 and the second member 2 are pivotally attached to each other, and the second member 2 is opened to the first member 1 in a predetermined state from the closed state in which both are overlapped. The present invention is applied to a hinge device of an electronic device that can be opened and closed up to an angle, which will be described below.

The rotating member 3 is provided in a fixed state on the first member 1 (main body in this embodiment), and when the first member 1 is rotated, the rotating member 3 is rotated accordingly. Constitute.

Since the first member 1 is the main body portion, the rotating portion 3 of this embodiment is a portion which can be said to be a fixed shaft of the hinge device. On the contrary, when the first member 1 is rotated, it serves as a rotation shaft.

Further, the second member 2 (in this embodiment, the opening / closing member) is provided with the holding spring body 4 in a fixed state (non-rotating state), and the second member 2 is opened and rotated with respect to the first member 1. Then, the holding spring body 4 is rotated with respect to the rotating portion 3 in accordance with the rotation of the second member 2.

That is, the rotating portion 3 is connected to the first member 1 through the mounting portion 12, is provided in the case 13 of the hinge device so as to project in the axial direction, and is integrated with the first member 1. There is.

Further, the holding spring body 4 is disposed in the case 13 which is connected to the second member 2 through the mounting portion 14 in a rotation-stop manner, and the rotation-holding state together with the supporting elastic portion 8 is fixed to the case 13. Is provided on the case 13 along with the rotation of the second member 2.
This case 13 is installed so that it rotates with every movement.
It is configured so as to be slidable in the axial direction against the elastic support portion 8.

Explaining further, the holding spring body 4 includes the rotating portion 3
Is arranged in a fitted state on the rotating portion 3 against the elastic support portion 8.
It is structured so that it can slide away from and slide. The elastic bearing portion 8 of this embodiment employs a spiral spring that is flat when the holding spring body 4 is pushed apart and contracted to save space.

Further, in the present embodiment, the rotation urging mechanism 5 for automatically rotating the second member 2 to the open state is provided.

That is, in this embodiment, the torque spring 5 is stored in the case 13 when the second member 2 is changed from the open state to the closed state to store the twisting force, and the automatic rotation biasing force is generated in the opening direction.
The holding spring body 4 is urged to rotate in the opening direction with respect to the rotating portion 3.

The outer shape of the rotating portion 3 is a predetermined cam shape, and the holding spring body 4 is a holding spring having a holding biasing force and anti-expansion elasticity. By being fitted in 3 and being pressed by being clamped, a cam rotation biasing force is generated in the closing direction.

That is, the automatic rotation of the rotating portion 3 in the opening direction is prevented by the cam rotation biasing force generated in the closing direction by the pressing and holding by the holding spring body 4 having the anti-expansion elasticity. (The rotation is prevented by the fitting engagement between the rotation portion 3 and the holding spring body 4), and the automatic rotation by the rotation urging mechanism 5 is prevented.

Further, the holding spring body 4 is configured to be movable apart from the rotating portion 3, and a lock releasing operation portion 7 for moving the holding spring body 4 away from the rotating portion 3 is provided. The clamping spring body 4 is moved to the supporting elastic portion 8 by the operation of 7.
Against the above, the holding spring body 4 is automatically rotated by the rotation urging mechanism 5 and is brought into an open state by separating the cam 3 from the rotation portion 3 to a position where the cam rotation urging force cannot be generated. Is configured as follows.

Further, in the present embodiment, the unlocking operation section 7 has a push operation section 7A serving as a push button and the pressing operation section 7A causes the clamping spring body 4 to resist the support elastic section 8 and rotate. It is composed of an operating rod portion 7B that pushes and separates from the moving portion 3.

The pushing operation portion 7A is configured to project outward from one side portion of the case 13, and the operating rod portion 7B penetrates the inside of the rotating portion 3 to connect the operating rod inside the holding spring body 4. 7A (push button) which is connected to 15 and pushes the clamping spring body 4
It is configured to be separated from the rotating portion 3 by the pushing operation.

That is, the holding spring body 4 is fitted on the turning portion 3 having a predetermined cam shape, and the holding spring body 4 is held by pressing the holding spring body 4 or by turning the turning portion 3. By the pressing, a cam rotation biasing force stronger than the automatic rotation biasing of the rotation biasing mechanism 5 is generated,
The holding spring body 4 is configured to prevent the automatic rotation of the holding spring body 4 by the cam rotation biasing force in the closing direction.

Therefore, in the closed state where the first member 1 and the second member 2 are overlapped with each other, the rotating portion 3 and the holding spring body 4 are fitted and engaged, and the holding spring body 4 holds and clamps the holding member. The spring body 4 is prevented from rotating (opening) by the cam rotation urging force generated when the spring body 4 tries to rotate, and in this embodiment, the cam shape of the rotating portion 3 and the sandwiching pressure of the sandwiching spring body 4 are set.
That is, even in the closed state, the rotating portion 3 is still in a slightly rotated posture, and in the closed state, the cam is rotated and biased by the cam rotation biasing force. It is configured so that it can be easily closed without a gap.

Then, by pushing the lock release operation portion 7 to separate the holding spring body 4 from the rotating portion 3,
The cam rotation biasing force acting in the closing direction is released,
The clamping spring body 4 is automatically rotated by the rotation urging mechanism 5,
The second member 2 is automatically opened and rotated with respect to the first member 1 to be in an opened state.

Therefore, for example, since the second member 2 has a heavy weight, when the turning biasing force of the turning biasing mechanism 5 is constituted by a strong spring (for example, the number of turns of the torque spring 5 is increased), this is counteracted. It is necessary to configure so that a strong cam rotation biasing force (anti-rotation holding force) is generated, but in this case, a strong clamping bias (strong anti-expansion elasticity) is generated so as to generate a strong cam rotation biasing force against this. The holding elastic body 8 supporting the fitting engagement between the rotating portion 3 and the holding spring body 4 is a strong spring depending on the strength of the rotating biasing force. Therefore, the pushing operation force for pushing the holding spring body 4 of the unlocking operation portion 7 to separate the holding spring body 4 may be weak.

Further, in the present embodiment, the holding spring body 4 is constituted by a holding type leaf spring having a pair of opposed plate portions for holding and pressing the rotating portion 3, and is rotated by the holding and pressing of the facing plate portion. The cam rotation urging force for rotating the rotation portion 3 is generated in a rotation posture in which the outer diameter dimension of the portion 3 is reduced.

Therefore, the pinching spring body 4 is engaged with the pivoting posture in which the diameter of the pivoting part 3 is reduced, that is, by clamping both sides of the minor diameter part of the pivoting part 3. By making the state in which it is closed into the closed state, if the rotating portion 3 tries to rotate in the opening direction due to the fitted engagement of the sandwiching spring body 4, a portion longer than the short diameter portion will be sandwiched. A force to push and expand the spring body 4 acts, but due to the anti-expansion elasticity of the holding spring body 4, a closing bias (cam rotation biasing force) is generated with a stronger force in the return direction (closing direction), so that The automatic rotation by the dynamic urging mechanism 5 is blocked, and the closed state is maintained.

Further, in a state where the rotation releasing portion 3 and the sandwiching spring body 4 remain engaged with each other without pushing the unlocking operation portion 7, the second member is operated by hand regardless of the rotation urging mechanism 5. When 2 is rotated in the opening direction, a clamping rotation force (closing bias) in the closing direction is generated by the clamping pressing by the clamping spring body 4, and when the hand is released, the closing bias automatically occurs. Return to the closed state. Further, if the cam shape is set so that the closing bias is reduced by rotating by a predetermined angle, it becomes easy to realize a free stop state in which the cam shape serves as rotation resistance and stops at the position where the hand is released.

In other words, if the closing urging force (cam rotation urging force) is set to a large value by setting the holding urging force of the holding spring body 4 and the cam shape of the rotating body 3, the hand is released as described above. It is also possible to re-close and rotate the closed state again, and when the hand is rotated by a predetermined opening angle or more, the cam rotation urging force becomes weak or disappears, and the hand is urged by the rotation urging mechanism 5. It can be configured so as to automatically open and rotate to the open state even when separated.

In this embodiment, a rectangular cam shape having a short diameter portion and a long diameter portion is used, and by rotating by approximately 90 degrees by hand,
Even if the hand is released beyond the position where the long diameter portion is clamped, the rotation biasing mechanism 5 automatically rotates to the open state.
Unless it is rotated by approximately 90 degrees by hand, it does not exceed the long diameter portion. Therefore, the cam rotation urging force returns and turns the cam to a closed state in which both sides of the short diameter portion are clamped, and the closed state is maintained. Is configured as follows.

Therefore, in this embodiment, the closing bias is applied to the position where it is rotated by about 90 degrees.

Further, in this embodiment, even in the closed state, the rotating portion 3 is held and pressed by the holding spring body 4 in a posture slightly inclined from the posture in which the short diameter portion is held. Force (cam rotation biasing force) is generated, the closed state does not rattle, and an unnecessary gap or the like does not occur between the first member 1 and the second member 2 when closed. It has a configuration that can be easily designed.

Further, in a posture in which the short-diameter portion of the rotating portion 3 is clamped, the peripheral edge portion is recessed and the corner portion is clamped and pressed by the clamping spring body 4, and there is a play in the open state and the closed state. It has less stickiness.

Further, the holding spring body 4 has a structure in which a plurality of holding leaf springs having a pair of opposed plate portions for pressing the turning portion 3 are superposed, and the turning biasing force by the turning biasing mechanism 5 is used. The cam rotation urging force due to the stronger clamping urging force is easily obtained.

Further, a cylindrical guide portion 9 for guiding the holding spring body 4 to move away from the supporting elastic portion 8 is connected to the tip end side of the rotating portion 3 so that the rotating biasing force is exerted. At the rotation position where the holding spring body 4 is automatically rotated by the mechanism 5, the holding spring body 4 separated from the position where the guide portion 9 is held is outside the rotation portion 3 more than the guide portion 9. Since the diameter is large (the rotating portion 3 is larger than the guide portion 9), the holding spring body 4 and the rotating portion 3 cannot return to the engaged position where they are fitted,
At the rotation position where the automatic rotation by the rotation urging mechanism 5 is terminated, the outer diameter of the guide portion 9 and the outer diameter of the rotation portion 3 are substantially equal to each other, and the holding spring body 4 has the support elastic portion. The guide portion 9 is set in a shape in which the return force of 8 automatically returns to the engagement position to end the automatic rotation.

That is, by making the outer diameter of the guide portion 9 substantially coincide with the minor diameter portion of the rotating portion 3, in the closed state, the clamping spring body 4 clamps both sides of the minor diameter portion. Therefore, by operating the unlock operation section 7, the rotation section 3
When the holding spring body 4 starts to automatically rotate by the rotation urging mechanism 5, the return elastic force of the support elastic portion 8 is returned from the support elastic portion 8 of the weak return spring to the guide portion 9. Even if is working, the rotating portion 3 does not move back because it has a larger diameter than the guide portion 9, and when the rotating portion 3 rotates about 180 degrees and reaches the position of the short diameter portion again, unless the lock release operating portion 7 is continuously pressed. , The support elastic portion 8 is automatically returned by the return force of the support elastic portion 8 to the rotating portion 3 using the guide portion 9 as a guide, and the holding spring body 4 is fitted on the rotating portion 3 and is held again to prevent rotation. ing.

Further, in this embodiment, the tip end portion of the guide body 9 is automatically rotated by the rotation urging mechanism 5 with respect to the holding spring body 4 as shown in FIGS. Holding engagement portion that engages with the engagement portion 10 that holds the rotation position to end
11 is provided.

The engaging portion 10 is provided on the actuating rod connecting portion 15, and is engaged when the lock releasing operation portion 7 is not pushed and is in the closed or open state, and the second member 2 If this is manually rotated against the closing bias of the holding spring body 4, this engagement will be lifted and disengaged, and if the lock release operating portion 7 is pushed, the operating lever connecting portion together with the holding spring body 4 will be pushed. 15 is also configured to be detached and engaged by detaching.

Further, in this embodiment, as described above, the rotating portion 3 is simply rectangular, and is rotated from the posture of sandwiching the minor axis direction to the posture of sandwiching the minor axis direction by approximately 180 degrees. Although it is configured to move, it is in the closed posture until it is rotated by about 90 degrees beyond the posture of holding the long diameter portion as described above. For example, as shown in FIG.
If the outer shape of the rotating body is slightly rotated relative to the holding spring body 4, the pressing force of the holding spring body 4 causes the rotation of the rotation biasing mechanism 5 in the same direction as the automatic rotation biasing in the opening direction. A dynamic urging force is generated, and the second member 2 is released and rotated with a little hand,
After that, even if the hand is released, the cam biasing force in the same direction that promotes the rotary biasing mechanism 5 may be automatically opened and rotated, or as shown in FIGS. 9 to 11. Then, the cam rotation biasing force is released by a slight rotation, and only the friction due to the sandwiching pressing by the sandwiching spring body 4 serves as the rotation resistance, and if the rotation biasing force of the rotation biasing mechanism 5 is set to a large value, It is possible to realize a configuration in which the second member 2 can be automatically opened and rotated at once by slightly rotating the second member 2 by hand without pressing the lock release operation unit 7.

That is, the cam engaging portion 16 that engages in the closed state and the open state is formed on the rotating portion 3 and the holding spring body 4,
When the cam engagement between the rotating portion 3 and the sandwiching spring body 4 is about to be released, a cam rotating biasing force is generated. That is, for example, as shown in FIG. 9, a cam concave portion 16A is formed on the outer periphery of the rotating portion 3 and a cam convex portion 16B that engages with the cam concave portion 16A is bent and formed on the holding spring body 4, or as shown in FIG. As shown, a cam convex portion 16B is formed on the rotating portion 3, and the cam concave portion 16A with which the cam convex portion 16B is engaged is, for example, a holding spring body 4.
Is formed as a notched groove hole, and it is possible to maintain the closed state and the open state by cam engagement due to this cam unevenness,
When the cam engagement is disengaged, a returning force that tries to engage the cam is generated, and the returning cam force is generated as the cam rotation urging force.

Therefore, in the closed state or in a rotating position close to this, the force that the cam convex portion 16B tries to fall into the cam concave portion 16A acts as a cam rotation urging force (closing urging force). Since the inclined surface of the concave portion 16A can be made sharp, in this case, it is easy to configure so as to generate a large closing bias although the rotation range in which the closing bias is applied is narrow.

Further, the free stop state can be set in a wide range, and as described above, it is possible to easily design the automatic open rotation by slightly rotating the open state.

Further, as shown in FIG. 11, the holding spring body 4 is made of a U-shaped wire, and the wire itself is the cam projection 16B.
Even if the cam concave portion 16A with which the wire is engaged is formed on the outer periphery of the rotating portion 3, various specifications can be designed as described above.

The present invention is not limited to the present embodiment, and the specific constitution of each constituent element can be designed as appropriate.

The operation of the rotating portion 3 and the holding spring body 4 need only have a relative relationship, and the specific structure changes depending on which side is rotated.

[0069]

Since the present invention is configured as described above, in the case of having an automatic opening / closing function of automatically operating the unlocking operation section, which is a one-touch opening / closing operation section, even if a heavy opening / closing member is automatically rotated. Even if it is configured to have a strong rotational urging force to prevent it, and also to have a blocking urging function to prevent it, it is possible to release the blocking urging that has been stopped by a weak operating force (that is, a weak operating force). It becomes an epoch-making hinge device and an electronic device using the hinge device that can be automatically opened and rotated by operating force).

That is, for example, when the first member or the second member for automatic rotation has a heavy weight, when the rotation urging force of the rotation urging mechanism is constituted by a strong spring, a strong cam rotation against this will occur. It is necessary to configure so as to generate an urging force (holding force for detent), but in this case, a pinch with a strong pinching force (strong anti-expansion elasticity) so as to generate a strong cam rotation urging force against this. Since it is sufficient to adopt a spring body, even if a supporting elastic portion for supporting the fitted engagement between the rotating portion and the sandwiching spring body is provided, for example, this supporting elastic portion has the strength of the rotational biasing force. Therefore, it is not necessary to use a strong spring according to the above conditions.Therefore, the pushing operation force that pushes the pinching spring body of the unlocking operation part to separate the pinching spring body can be weak, which makes it extremely easy to operate. Uses a hinge device with excellent practicality and a hinge device It was the electronic devices.

Further, according to the second aspect of the invention, the hinge device has an extremely excellent function and effect of the present invention.

Further, in the inventions according to claims 3, 4, and 5, the hinge device is extremely practical, which makes it possible to implement the present invention more easily.

According to the sixth aspect of the invention, the separation movement of the holding spring is smooth, and the action and
In addition to the effect being exhibited, it is also possible to automatically design the clamping spring to return to the position where it is fitted to the rotating portion in the closed state and the open state, and it is epoch-making with further excellent operability. It becomes a hinge device.

According to the seventh aspect of the invention, the hinge device is maintained in the open state and is more practical.

Further, the invention according to claim 9 is an electronic apparatus using the excellent hinge device which exhibits the above-mentioned action and effect.

[Brief description of drawings]

FIG. 1 is an explanatory perspective view of the present embodiment.

FIG. 2 is an explanatory sectional view of the present embodiment in a closed state.

FIG. 3 is an explanatory cross-sectional view in the middle of automatic opening and turning by pushing the lock release operating portion of the present embodiment.

FIG. 4 is an exploded perspective view of the present embodiment.

FIG. 5 is an explanatory diagram showing the relationship between the rotating portion and the sandwiching spring body in the closed state, in the middle of rotation, and in the open state in the present embodiment.

FIG. 6 is an explanatory exploded perspective view showing the engagement between the holding engagement portion provided on the guide portion of the rotating portion and the engagement portion provided on the actuating rod connection portion according to the present embodiment.

FIG. 7 shows a closed engagement state in which a holding engagement portion provided in a guide portion of a rotating portion of the present embodiment and an engagement portion provided in an operating rod coupling portion are engaged, and an engagement state in an opened state. It is an explanatory view and an explanatory view showing a state where it is disengaged and engaged and disengaged during rotation.

FIG. 8 shows another example of the cam shape of the rotating portion when the second member is rotated by hand without pushing the lock releasing operation portion of the present embodiment, and shows the closed state, It is explanatory drawing which shows the relationship between the rotation part and the clamping spring body in an open state during rotation.

FIG. 9 is an explanatory view showing another example 2 of the cam shape of the rotating portion (holding spring body) of the present embodiment.

FIG. 10 is an explanatory diagram showing another example 3 of the cam shape of the rotating portion (holding spring body) of the present embodiment.

FIG. 11 is an explanatory diagram showing another example 4 of the cam shape of the rotating portion (holding spring body) of the present embodiment.

[Explanation of symbols] 1 First member 2 Second member 3 Rotating part 4 clamping spring body 5 Rotating biasing mechanism 7 Unlock operation section 7A Push operation part 7B operating rod 8 Bearing elastic part 9 Guide part 10 Engagement part 11 Holding engagement part

Claims (9)

[Claims] 1. A hinge device for pivotally connecting a first member and a second member, wherein the hinge device is fixedly provided on one of the first member and the second member. A pinching spring body having a pinching urging force and anti-expansion elasticity is fitted and disposed on a pivoting part that rotates in accordance with one of the rotations, and the outer shape of the pivoting part varies depending on the rotation position. The cams are set to have predetermined cam shapes with different sizes, and a cam rotation biasing force that relatively rotates the rotating portion with respect to the sandwiching spring body is generated by the sandwiching pressing by the sandwiching spring body. A rotation biasing mechanism that biases the moving portion relative to the sandwiching spring body in a direction opposite to the cam rotation biasing direction is provided. The holding spring body is set so that the cam rotation biasing force is larger, and the holding spring is attached to the rotation portion. In a state where the body is fitted and the cam rotation biasing force can be generated, the relative rotation biasing force of the rotation biasing mechanism is configured so as not to automatically rotate relative to each other, and the sandwiching spring body is configured as described above. A lock releasing operation section is provided which is movable relative to the rotating section so as to move away from the rotating section, and the holding operation is performed by operating the lock releasing operation section. By moving the spring body away from the rotation portion to a position where the cam rotation biasing force cannot be generated, the rotation biasing mechanism causes the rotation portion to automatically rotate relative to the sandwiching spring body. A hinge device characterized by being configured as follows. 2. A base member of a first member and a second member are pivotally attached to each other, and one of the first member and the second member is rotated to a predetermined opening angle from a closed state in which both are overlapped. A hinge device that can be opened and closed in an open state, and is provided in a fixed state on one of the first member and the second member, and rotates with the rotation of one of the first member and the second member. And a holding spring body that is provided in a fixed state on the other of the first member and the second member and that rotates with the rotation of the other of the first member and the second member. Is provided, and the holding spring body having anti-expansion elasticity that presses the rotating portion with a holding bias is fitted and disposed on the rotating portion, and the outer shape of the rotating portion has a radial dimension depending on the rotating position. Different predetermined cam shapes are set, and the rotating portion is moved to the holding spring body by the holding pressure of the holding spring body. And a cam rotation urging force for urging the cam into a closed state by rotating the rotation portion relative to the clamping spring body in a direction opposite to the cam rotation urging direction. Is provided with a rotation urging mechanism for urging relative rotation,
The cam rotation urging force, which is the closing urging force of the sandwiching spring body, is set to be larger than the relative rotation urging force of the rotation urging mechanism, which causes the opening urging to the open state. In a state in which the holding spring body is fitted in the rotating portion and a cam rotation biasing force that causes the closing bias is generated by the holding spring body, relative rotation biasing that causes the opening biasing by the rotation biasing mechanism is performed. The clamping spring body is configured so as not to automatically rotate relative to each other depending on the force, and to keep the closed state. A lock release operation unit is provided that moves relatively away from the rotation unit, and the operation of the lock release operation unit causes the holding spring body to move away from the rotation unit to a position where the cam rotation biasing force cannot be generated. Thus, the rotation biasing mechanism causes the rotation portion to move. The hinge apparatus according to claim 1, characterized by being configured to automatically relative rotation in the direction of the open state with respect Kikyoji spring body. 3. The holding spring body is constituted by a hugging spring having a pair of facing portions that press the rotating portion with a holding bias.
The hinge device according to the paragraph. 4. The holding spring body is constituted by a holding type leaf spring having a pair of opposed plate portions for pressing the rotating portion to be held, and an outer diameter of the rotating portion is obtained by holding and pressing the facing plate portion. A cam surface is formed in a part of the rotating portion to form an R surface or an inclined surface for generating a cam rotating force so that the cam rotating biasing force for rotating the cam into a rotating posture having a small size is generated. The hinge device according to claim 3, wherein the cam rotation biasing force is generated by holding and pressing the shaped portion. 5. The holding spring body is constituted by stacking a plurality of holding type leaf springs having a pair of opposing plate portions for pressing the turning portion to be held, and the relative turning by the turning biasing mechanism. The hinge device according to claim 4, wherein the cam rotation urging force due to the clamping urging force, which is greater than the urging force, can be generated. 6. A guide portion is continuously provided on the tip side of the rotating portion to guide the holding spring body from moving away from the supporting elastic portion, and the rotating biasing mechanism causes the rotating portion to move. At a rotation position in the middle of automatically rotating relative to the holding spring body, the holding spring body separated from the position for holding the guide portion is covered by the holding spring body and the turning portion. The pinching spring body has a restoring force of the support elastic portion at a rotation position at which it cannot move back to the engaging position for fitting and the automatic relative rotation by the rotation urging mechanism is completed or at a predetermined rotation position at which it is completed. The hinge device according to any one of claims 1 to 5, wherein the guide portion is set in a shape in which the guide portion is automatically returned to the engagement position and the automatic relative rotation is completed. 7. A guide body for guiding the separating movement of the holding spring body, which is connected to the rotating portion or the tip of the rotating portion,
A holding engagement portion that engages with an engagement portion that holds a rotation position at which the automatic relative rotation of the rotation portion with respect to the sandwiching spring body by the rotation biasing mechanism ends is provided. Item 7. A hinge device according to any one of items 1 to 6. 8. The unlocking operation section includes a pushing operation section and an operating rod section that pushes and separates the holding spring body from the rotating section against the elastic support portion by the pushing operation section. The hinge device according to any one of claims 1 to 7, wherein the hinge device is provided. 9. An electronic apparatus using a hinge device, wherein the hinge device according to any one of claims 1 to 8 is provided on a pivot portion.