JP4467600B2 - HINGE DEVICE AND ELECTRONIC DEVICE USING HINGE DEVICE - Google Patents

Description

  The present invention, for example, pivots a first member and a second member superposed on the first member so that the first member can be opened and closed, and the second member changes from a superposed state to an open state with respect to the first member. The present invention relates to a hinge device configured to be able to open and rotate, and an electronic device such as a mobile phone or a notebook personal computer using the hinge device.

  As shown in International Publication WO 00/50780, the present applicant has developed a hinge device in which an opening / closing part (for example, a display part) is opened and rotated with respect to a main body part (for example, an operation part) with one touch.

  When this hinge device is applied to, for example, a folding type mobile phone, the opening / closing portion held in the overlapped state in the main body portion is simply pressed with the finger on the release operation portion provided on the hinge device (push button), An opening / closing part such as a display held at a closed position (overlapping position) with respect to the main body part (for example, the operation part) can be automatically opened and rotated to a predetermined opening angle position.

  Therefore, the hinge device that performs this automatic opening function realizes a structure that can automatically open and close the opening / closing part with a single touch while fulfilling the function of maintaining the closed state of the main body part and the opening / closing part. However, for example, the display unit opens at once with one touch, so if it is not supported firmly by hand due to its momentum, that is, if it does not hold the operation unit firmly in a mobile phone, it may fall from the hand .

  Therefore, for example, in Japanese Patent Application Laid-Open No. 2006-177455, the present applicant includes a mechanism for imparting a rotation resistance to the opening / closing rotation of the opening / closing portion, so that the opening / closing portion is automatically operated with respect to the main body portion by one-touch operation. However, when the opening angle position reaches a certain degree (for example, about 90 °), the opening / closing portion gradually decelerates due to the attenuation of the opening rotation bias and the increase in the influence of the rotation resistance. Thus, a hinge device has been proposed in which a low-speed rotation state is established, and the opening / closing portion slowly reaches a predetermined opening angle position (for example, about 180 °) while maintaining the low-speed rotation state. According to this, the opening / closing unit such as the display unit can be automatically opened by one-touch operation, and the above-described problem that the main unit unit such as the operation unit is unexpectedly dropped from the hand by the force of the opening rotation at that time. It can prevent well.

WO 00/50780 JP 2006-177455 A

  By the way, in order to realize the structure of the hinge device having such an automatic opening / closing function and a deceleration function of the opening / closing part, the urging force of the torsion spring for urging the opening / closing part or the opening / closing part by its own weight is provided. In consideration of various factors such as the force, it is necessary to adjust and set the rotation resistance with respect to the opening rotation of the opening and closing unit to an appropriate size. That is, if the rotation resistance is too small, the speed reducing function of the opening / closing section is not performed well, and conversely if the rotation resistance is too large, the opening / closing section cannot reach the predetermined opening angle position and stops rotating in the middle. The original automatic opening function is not fulfilled.

  For example, the rotation resistance with respect to the opening rotation of the opening / closing portion is generally realized by a biasing force of a compression spring, for example, but the magnitude of the rotation resistance needs to be finely adjusted as described above. When a compression spring that generates this rotational resistance is provided, it is essential to adjust the biasing force, that is, the spring pressure.

  In the present invention, for example, when it is desired to change the magnitude of the rotational resistance by the compression spring described above in response to a change in the spring pressure of the torsion spring or a change in the weight of the opening / closing portion, the compression spring before the change is not conventionally used. Since a new compression spring with an appropriate spring pressure has been adopted as appropriate, a wasteful compression spring before the change is generated each time the design is changed, which is inefficient and costly. In view of the current situation, a spacer member is arranged at a position where it abuts against the end of the compression spring, and the compression spring is configured to compress and deform by elastic contact with the spacer member. The amount of compression deformation of the compression spring can be adjusted and set by adjusting the shape of the spacer, and the magnitude of the rotational resistance corresponding to the spring pressure of the compression spring can also be adjusted and set by setting the shape of the spacer member. Realized by the structure, and to provide an electronic apparatus using the mass productivity and cost of innovative hinge device and the hinge apparatus Xiu is to have a high versatility.

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

Together configured to open pivoted from the closed state polymerized together pivotally attached to the first member 1 and second member 2, releasing the closure retaining mechanism 3 is the first member 1 and the second member 2 hinges said second member 2 against the first member 1 is configured to open pivoted from the closed position P1 to the predetermined opening angle position P2 by the rotation urging an open rotation urging mechanism 4 by an apparatus, a cam unit 5 to rotate together with the first member 1 or the second member 2, and a cam engaging portion 6 of the second member 2 or rotate together with the first member 1 is provided, wherein cam unit 5 or provided slidably move said cam engaging portion 6 in the engagement separating direction, engaging the one when said cam portion 5 and the cam engagement portion 6 is moved in the separating direction disengaged from It is provided with an engagement biasing mechanism 7 that is biased by a compression spring 7A in the direction, After release of the occlusion holding mechanism 3, when the said second member 2 is first for one member 1 opens rotated by rotationally biased in the opening rotation urging mechanism 4, the opening times of the second member 2 together with the cam portion 5 with the movement and the cam engagement portion 6 is configured to move the engagement emerged separating direction, the cam 5 and cam engagement by with the engagement force of the engagement biasing mechanism 7 The engagement biasing force is configured such that a rotation biasing force to be engaged is generated from a state in which the part 6 is not engaged and resistance is given to the opening rotation of the second member 2. arranging a spacer member 8 to the end of the compression spring 7A mechanism 7 to a position abutting, engagement of the engagement biasing mechanism 7 the compression springs 7A by allowed to compressive deformation by the contact between the spacer member 8 configured to pivot resistance increases for opening rotation of the second member 2 by engagement urging the And characterized in that the shape setting such as the size and thickness of the pacer member 8 is configured so as to adjust setting the rotational resistance by the amount of compressive deformation of the compression spring 7A can adjust settings and the engagement biasing mechanism 7 The present invention relates to a hinge device.

Further, the open rotation urging mechanism 4 so as to rotate the end portion of the torsion spring 4A together with the first member 1, provided the other end portion to rotate together with the second member 2, the closing when releasing the holding mechanism 3, characterized by being configured such that the second member 2 against the first member 1 by the rotational biasing force of the torsion spring 4A confer rotationally urged to open pivot The hinge device according to claim 1.

Further, the torsion spring 4A of the opening rotation urging mechanism 4 has a shape having an extended end 4t with an end extending along the axial direction, and the extended end 4t of the torsion spring 4A is inserted therethrough. An insertion portion 8a is formed in the spacer member 8, and the extended end portion 4t of the torsion spring 4A is held in the insertion portion 8a of the spacer member 8 so as to be fitted, and the end side of the torsion spring 4A is provided. The hinge device according to claim 2, wherein the spacer member 8 is arranged on the hinge device.

  Further, the extended end 4t of the torsion spring 4A is fitted to the first member 1 or a member that rotates together with the first member 1, or the second member 2 or a member that rotates together with the second member 2. A spring end fitting insertion portion 9 to be inserted is provided, and the extended end portion 4t of the torsion spring 4A is arranged so as to be in a state of being inserted into the fitting insertion portion 8a of the spacer member 8 and the spring end fitting insertion portion 9 and to be fitted. The hinge device according to claim 3, wherein the hinge device is configured.

Further, it arranged the torsion spring 4A than smaller diameter the compression spring 7A to the open rotation urging mechanism 4 of the torsion spring 4A, fitted the extension end portion of the torsion spring 4A of the spacer member 8 interpolator configuration and which arranged the spacer member 8 at a position abutting the end of the compression spring 7A which arranged on the torsion springs in 4A and on the end side of the torsion spring 4A and arranged to be fitted state embrace the 8a The hinge device according to any one of claims 3 and 4, wherein the hinge device is provided.

Further, by releasing the closure retaining mechanism 3, when the opening rotating the second member 2 from the closed position P1 to the predetermined opening angle position P2 with respect to the first member 1, and at least the closed position P1 predetermined In the range from the intermediate position P3 of the opening angle position P2 to the predetermined opening angle position P2, the attenuation of the rotation bias of the opening rotation biasing mechanism 4 due to the increase of the opening angle of the second member 2; Further, the force of the second member 2 is decelerated by the rotation resistance by the engagement biasing mechanism 7 to be in a low-speed rotation state, and the opening rotation biasing mechanism 4 is rotated in the low-speed rotation state. The rotation resistance by the engagement urging mechanism 7 is adjusted and set so that it can be opened and rotated by the force or the weight of the second member 2 to reach the predetermined opening angle position P2. Item 6-5 Those of the di device.

Further, the cam portion 5 or the cam engagement portion 6 is provided on the case-shaped mounting member 12, in this case shaped mounting member 12, the cam portion 5 or the cam engagement portion is formed on the mounting member 12 and slidably the cam engaging portion 6 or the cam portion 5 in engagement separating direction with respect to 6, said compression spring 7A which engages biasing this, the spacer member 8 abuts against the compression spring 7A The hinge device according to any one of claims 1 to 6, wherein the hinge device is arranged in a storage state.

Further, the body portion having an operating portion 10 on the upper surface and the first member 1 or the second member 2, the display unit 11 to the switching unit and the second member 2 or the first member 1 with the saphenous surface An electronic device using a hinge device, wherein the end portions of the main body portion and the opening / closing portion are pivotally connected by the hinge device H according to any one of claims 1 to 7. It is.

  Since the present invention is configured as described above, the second member can be automatically opened from the closed position to the predetermined opening angle position with respect to the first member by releasing the closing holding mechanism.

  In addition, when the second member rotates and opens relative to the first member in this way, resistance is given to the opening and rotation of the second member by the engagement bias of the compression spring of the engagement biasing mechanism. be able to.

  In addition, according to the present invention, the magnitude (strength) of the rotation resistance by the engagement urging mechanism can be easily adjusted and set according to the shape setting of the spacer member arranged at the position where it abuts against the end of the compression spring. .

  Accordingly, the present invention does not open the second member automatically from the beginning to the end, for example, when releasing the closing holding mechanism and automatically releasing the second member. The momentum of the second member gradually decelerates due to the attenuation of the opening rotation of the biasing mechanism and the effect of the rotation resistance by the engagement biasing mechanism, and finally enters a low-speed rotation state and slowly reaches a predetermined opening angle position. A good one-touch opening operation such as can be easily realized by setting the shape of the spacer member.

  Therefore, according to the present invention, by appropriately setting the shape of the spacer member in advance, the rotation resistance of the desired engagement urging mechanism can be set to a desired size (strength), and if necessary, the spacer By simply replacing the member with another shape, the compression spring does not need to be replaced.In other words, it eliminates the waste of not using the compression spring before the change when changing the design, and meets various requirements for rotational resistance. It has excellent versatility that can be dealt with satisfactorily only by replacing the spacer member. Therefore, it is excellent in mass production and cost. Because of the simple structure realized by the shape adjustment, this is an innovative and highly commercial hinge device and hinge that have excellent practicality, such as excellent mass production and low cost design. Electronic equipment The vessel.

  In the inventions according to claims 2 to 4, the structure of the opening rotation urging mechanism of the present invention can be easily realized by using a torsion spring, and the hinge device can be designed and realized more easily.

  Further, the end of the torsion spring (extended end) is held and fitted over a long range by the spacer member for adjusting and setting the rotation resistance due to the engagement bias of the compression spring. The end can be firmly held in a non-rotating state, and this prevents the torsion spring, for example, from being bent or deformed unexpectedly by its own turning biasing force (torsional force). It is also possible.

  In the invention according to claim 5, the compression spring is disposed in the torsion spring in the housed state, and the spacer member is disposed on the end of the torsion spring so as to contact the end of the compression spring. The end (extended end) of the torsion spring is inserted into the insertion part of the spacer member and fitted, and the compression spring is securely compressed and deformed by this spacer member, and the structure of the compact device is designed easily. It becomes feasible, and the hinge device is more practical.

  In the invention described in claim 6, the second member can be pivoted openly from the closed position with respect to the first member by a one-touch operation to release the closed holding mechanism, and a predetermined rotational position (intermediate position). ), The momentum of the second member gradually decelerates, and finally a good automatic opening operation in which the second member slowly reaches the predetermined opening rotation position while maintaining the low-speed rotation state is realized simply and reliably. It will be a better hinge device.

  According to a seventh aspect of the present invention, either the cam portion or the cam engaging portion is provided in the case-like mounting body, and the cam engaging portion or the cam portion, the compression spring, and the spacer member are provided in the case-like mounting body. By arranging the device in the storage state, it is possible to easily design and realize a compact configuration of the device, and the hinge device is more practical.

  In the invention according to the eighth aspect, the electronic device is excellent in practicality provided with the hinge device capable of exhibiting the above-described excellent operational effects in the pivotally attached portion of the operation portion and the display portion.

  Embodiments of the present invention that are considered suitable (how to carry out the invention) will be briefly described with reference to the drawings, illustrating the operation of the present invention.

  In the present invention, the first member 1 and the second member 2 are pivotally attached to each other so that the first member 1 and the second member 2 are rotated and released from the closed state, and the first member 1 and the second member 2 are closed. 3 is configured such that the second member 2 is pivotally opened from the closing position P1 to the predetermined opening angle position P2 with respect to the first member 1 by the biasing force of the opening and pivoting biasing mechanism 4 by releasing 3. It is a hinge device.

  Further, a cam portion 5 that rotates together with the first member 1 or the second member 2 and a cam engagement portion 6 that rotates together with the second member 2 or the first member 1 are provided. The portion 6 is slidably movable in the direction of disengagement. When the cam portion 5 and the cam engagement portion 6 are disengaged and moved in the direction of separation, one of them is engaged in the engagement direction by the compression spring 7A. An engaging biasing mechanism 7 is provided.

  When the closing member 3 is released and the second member 2 is opened and rotated with respect to the first member 1, the cam portion 5 and the cam engaging portion 6 are engaged and disengaged and move away from each other. The biasing mechanism 7 causes the biasing force to be engaged from the state where the cam part 5 and the cam engaging part 6 are not engaged, that is, the rotational biasing in the closing direction. As a result, a rotation resistance is applied to the opening rotation of the second member 2.

  The greater the biasing force of the compression spring 7A is, the more the biasing force that the cam part 5 and the cam engaging part 6 are engaged with each other, that is, the opening of the second member 2 is. The rotation resistance with respect to rotation increases.

  In the present invention, the spacer member 8 is disposed at a position where it abuts against the end of the compression spring 7A, and the compression spring 7A abuts against the spacer member 8 (elastic contact), so that the compression spring 7A is compressed and deformed. . As a result, the spring pressure of the compression spring 7A is increased, and the rotational resistance due to the engagement bias of the compression spring 7A is increased.

  Therefore, if the shape such as the size and thickness of the spacer member 8 is appropriately set at the time of manufacture, the amount of compression deformation of the compression spring 7A due to the contact of the spacer member 8 can be adjusted and set. The rotational resistance due to the engagement bias can be adjusted and set.

  Therefore, for example, by appropriately setting the shape of the spacer member 8 at the time of designing, it is possible to easily realize a rotational resistance having a desired strength (size), and to set the spacer member 8 to a different shape as necessary. If you replace it with one with a different spring pressure, you can variably set the rotational resistance without replacing the spring 7A with one with a different spring pressure, making it versatile enough to meet various rotational resistance requirements. Excellent composition.

  Therefore, as in the embodiment described later, for example, when the closing holding mechanism 3 is released and the second member 2 is opened and rotated with respect to the first member 1 from the closing position P1 to the predetermined opening angle position P2, At least in the range from the intermediate position P3 between the closing position P1 and the predetermined opening angle position P2 to the predetermined opening angle position P2, the opening rotation biasing mechanism 4 by the opening angle of the second member 2 is increased. The force of the second member 2 is decelerated by the attenuation of the rotation urging force and the rotation resistance by the engagement urging mechanism 7, and the low rotation state is maintained. The rotation resistance by the engagement urging mechanism 7 is adjusted and set so as to reach the predetermined opening angle position P2 by opening and rotating due to the rotation urging of the urging mechanism 4 or the weight of the second member 2. It is also possible to set the shape of the spacer member 8. By it is easily realized. For example, if the present invention is applied to a pivoting portion between the operation unit (first member 1) and the display (second member 2) of a folding cellular phone, the display can be opened and rotated from the operation unit by one-touch operation. In addition, the display does not rotate to the predetermined opening rotation position at once, but gradually decelerates the momentum and slowly reaches the predetermined opening rotation position. It is possible to easily realize a good one-touch automatic opening structure with excellent operability such that there is no fear of accidentally dropping from the hand.

  Further, for example, the opening rotation urging mechanism 4 rotates the other end together with the second member 2 so that one end of the torsion spring 4A rotates together with the first member 1 as in an embodiment described later. When the closure holding mechanism 3 is released, the rotation biasing force of the torsion spring 4A is applied to the first member 1 so that the second member 2 is pivoted to open and pivot. In the case of the above configuration, the torsion spring 4A can easily realize a structure in which the second member 2 is opened and rotated with respect to the first member 1 when the closure holding mechanism 3 is released. As the opening angle of the second member 2 is gradually increased with respect to 1, the spring pressure of the torsion spring 4A is gradually attenuated, so that a structure in which the opening rotation bias is attenuated by increasing the opening angle can be easily realized. The rotation biasing mechanism 4 can be realized with a simple structure. That.

  In addition, when the torsion spring 4A is employed in this way, the torsion spring 4A is rotated by its own rotation biasing force (torsional force), and the entire spring is bent or deformed, causing the torsion spring 4A to rotate. The power may be lost, and the second member 2 may not be able to achieve the desired opening rotation operation.

  In this regard, in the present invention, for example, the torsion spring 4A has a shape having an extended end portion 4t having an end portion extending in the axial direction, and an insertion portion through which the extended end portion 4t of the torsion spring 4A is inserted. 8 a is formed in the spacer member 8, the extended end 4 t of the torsion spring 4 A is held in the fitting insertion portion 8 a of the spacer member 8, and the spacer member is disposed on the end side of the torsion spring 4 A. 8, the spacer member 8 that adjusts and sets the rotation resistance makes the end portion (extended end portion 4 t) of the torsion spring 4 </ b> A longer (the stroke range corresponding to the thickness of the spacer member 8). It is also possible to hold and hold firmly over a long distance) to prevent unexpected torsional deformation and kinking deformation of the torsion spring 4A.

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

  In this embodiment, the present invention is applied to a foldable mobile phone as an electronic device using the hinge device H as shown in FIG. 8, and electronic components such as a circuit board and a power source are provided inside the case. At the same time, a plate-like main body having an operation unit 10 on the upper surface side is used as a first member 1 (hereinafter referred to as main body 1), and the display unit having substantially the same shape that overlaps the main body 1 and covers the operation unit 10 The plate-like opening / closing part provided with 11 is a second member 2 (hereinafter referred to as opening / closing part 2), and the opening / closing part 2 is pivotally connected to the main body part 1 by a hinge device H so as to be able to swing up and down.

  Then, when the pushing operation portion 3A (release button) formed on the side portion (see FIG. 8) in the vicinity of the pivoting portion of the main body portion 1 is pushed in the closed and locked state held by the closing holding mechanism 3. The rotation lock state is released, and the opening / closing portion 2 is automatically moved from the closed position P1 to the main body portion 1 by a rotation biasing force of the opening rotation biasing mechanism 4 (as shown in FIG. 7). In addition, the opening / closing part 2 is rotated to the open position up to 170 ° with respect to the main body 1.

  In this embodiment, as shown in FIGS. 3 and 4, a mounting hole 1 a is provided in the base of the main body 1, and the mounting hole 2 a is also provided at a predetermined position of the opening / closing part 2 adjacent to the mounting hole 1 a. The hinge device H of the present invention configured as a shaft-shaped part is mounted in each of the mounting holes 1a and 2a.

  The hinge apparatus H of a present Example is demonstrated.

  In the present embodiment, a cam engaging portion 6 that rotates together with the main body portion 1 and a cam portion 5 that rotates together with the opening and closing portion 2 are provided, and the cam portion 5 or the cam engaging portion 6 is moved in the direction of disengagement. Provide slidable.

  Specifically, the cam engagement portion 6 is provided on a case-like attachment body 12, and the case-like attachment body 12 is engaged with the cam engagement portion 6 formed on the attachment body 12. The cam portion 6 is provided so as to be slidable in the separation / separation direction.

  More specifically, the casing-shaped mounting body 12 is a casing that is non-rotating with respect to the mounting hole 1 a of the main body 1. As shown in FIGS. 1 and 2, the mounting body 12 closes a cap body 12B having a rectangular tube shape (non-rotating shape with respect to the mounting hole 1a) at an opening at one end of a cylindrical body portion 12A. It is the structure which arranged in the state and was fixed to the rotation prevention state mutually.

  The cam engaging portion 6 is provided on the inner surface of the cap body 12B. As shown in FIG. 5, a cam convex portion 5A of the cam portion 5 described later falls and slides as the cam engaging portion 6. The sagging sliding portion 6A is formed to be recessed in the inner surface portion of the cap body 12B.

  Accordingly, the cap body 12B of the case-shaped mounting body 12 is fixed to the mounting hole 1a of the main body section 1 so that the mounting body 12 rotates together with the main body section 1, that is, the mounting body 12 together with the main body section 1 is attached. The provided cam engaging part 6 will rotate.

  A shaft support hole 16 is formed at the end of the body 12A of the mounting body 12 (the other end opposite to the one end that closes the cap body 12B). The shaft member 13 is inserted and supported in a communicating state with the cap member 12B and the shaft support hole 16 which are in the shape of a ring.

  As shown in FIGS. 1 and 2, the shaft member 13 has a jaw portion 13A on the base end side, and the tip end side is inserted and supported from the cap body 12B side of the mounting body 12 to thereby support the cap body 12B. The jaw portion 13A of the shaft member 13 is positioned and brought into contact with the outer surface side of the shaft member 13. Further, when the shaft member 13 is rotated with respect to the mounting body 12, a part of the jaw portion 13A of the shaft member 13 is a part of the outer surface side of the cap body 12B of the mounting body 12 as shown in FIG. The pivotable angle range of the shaft member 13 with respect to the attachment body 12 is regulated by being in contact with and contacting the portion.

  A cylindrical cam portion 5 having a non-rotating shape with respect to a shaft member 13 that is inserted into and supported by the case-like mounting body 12 is slidably moved in the axial direction on the shaft member 13 and is fitted in a non-rotating state. Thus, the case-like mounting body 12 is placed in a stored state. Further, a cam convex portion 5 </ b> A is provided by projecting a part of the edge portion of the cylindrical cam portion 5 facing the cam engaging portion 6 toward the cam engaging portion 6.

  Accordingly, the cam member 5 and the cam engaging portion 6 provided on the mounting body 12 can be slid in the disengagement direction with the shaft member 13 as a slide guide.

  Further, on the outer surface side of the other end portion opposite to the one end portion where the cap body 12B of the case-like attachment body 12 is closed, a non-rotating attachment body 15 is disposed outside via a poly washer 14. The tip end portion of the shaft member 13 that is pivotally supported by the case-like attachment body 12 is fixed to the first member-side attachment body 15 via a fastening pin 15A. Accordingly, as shown in FIG. 6, when the anti-rotation attachment body 15 is rotated, the shaft member 13 and the cylindrical cam portion 5 fitted on the shaft member 13 are integrally rotated.

  The anti-rotation mounting body 15 is formed in a non-rotating shape with respect to the mounting hole 2a of the opening / closing portion 2, and therefore the anti-rotation mounting body 15 is fixed to the mounting hole 2a of the opening / closing portion 2 in a non-rotating state. By fixing, the cam part 5 is prevented from rotating with respect to the opening / closing part 2 via the anti-rotation mounting body 15 and the shaft member 13, and the opening / closing part 2 and the cam part 5 are integrally rotated.

  With the above configuration, as shown in FIGS. 3 and 4, the cam engagement portion 6 provided on the case-like attachment body 12 is provided in the main body portion 1 in a non-rotating state and is housed in the attachment body 12. The cam portion 5 arranged on the opening / closing portion 2 is provided in a non-rotating state in the opening / closing portion 2 and is configured to be slidable in the engagement / separation direction with respect to the cam engagement portion 6 in the attachment body 12.

  Further, in this embodiment, when the cam portion 5 and the cam engaging portion 6 are engaged and disengaged and moved in the separating direction, one of them is engaged and urged by the compression spring 7A in the engaging direction. 7 is provided.

  Specifically, as shown in FIGS. 3 and 4, the compression spring 7 </ b> A is fitted into a shaft member 13 that is pivotally supported by the case-like attachment body 12 and is inserted into the case-like attachment body 12. The cam portion 5 and the cam portion 5 are arranged in a storage state.

  Therefore, the cam portion 5 is always engaged with the cam engaging portion 6 in the engaging direction (right direction in FIG. 3) by the engagement bias (spring pressure) of the compression spring 7A. Energized.

  By the way, in this embodiment, when the closure holding mechanism 3 is released and the opening / closing part 2 is opened and rotated with respect to the main body part 1, the cam part 5 and the cam engaging part are associated with the opening / closing of the opening / closing part 2. 6 is disengaged and moved in the direction of separation.

  Specifically, as shown in FIG. 5, the cam engaging portion 6 has a sliding sliding portion 6 </ b> A that is recessed into the inner surface of the cap body 12 </ b> B of the mounting body 12. 5A is formed on the cam portion 5, and the opening / closing portion 2 is closed with respect to the main body portion 1 as shown in FIGS. In the state (CLOSE state), the cam convex portion 5A falls and is positioned in the vicinity of the bottom of the sliding portion 6A, and the cam portion 5 and the cam engaging portion 6 are substantially unevenly engaged (strictly, the uneven engaging state is in the middle). It becomes. When the opening / closing part 2 is opened and rotated with respect to the main body part 1 from this closed state, the cam sliding part 6A of the cam engaging part 6 and the cam projecting part 5A of the cam part 5 are in the escape direction opposite to the falling direction. As a result, the cam portion 5 slides away from the cam engaging portion 6 and the opening / closing portion 2 is opened to the predetermined opening angle position P2 with respect to the main body portion 1 (OPEN). 4 and FIG. 5, the cam convex portion 5 </ b> A falls and completely slides out of the sliding portion 6 </ b> A and moves to a flat portion, and the cam portion 5 moves relative to the cam engaging portion 6. This is the maximum separation position.

  Therefore, when the closure holding mechanism 3 is released from the closed state and the opening / closing part 2 starts to rotate with respect to the main body part 1 by the urging of the torsion spring 4A of the opening rotation urging mechanism 4, the cam part 5 The cam portion 5 is slid relative to the cam engaging portion 6 and slides away from the cam engaging portion 6. As described above, the cam portion 5 is moved in the engaging direction by the compression spring 7A of the engaging biasing mechanism 7. Therefore, the rotation biasing force to be engaged from the state in which the cam portion 5 and the cam engagement portion 6 are not engaged by the engagement biasing of the engagement biasing mechanism 7 is generated. Will occur.

  That is, the engagement urging force of the compression spring 7A acts in the direction in which the cam convex portion 5A of the cam portion 5 falls and slides with respect to the falling sliding portion 6A of the cam engaging portion 6, and thus the opening / closing portion 2 is moved. A rotation bias in the closing direction is generated, and thereby a rotation resistance is given to the opening rotation of the opening / closing part 2. Therefore, the rotation of the opening / closing portion 2 with respect to the opening rotation of the compression spring 7A (adjustment setting of the engagement biasing force) is adjusted according to the adjustment of the spring pressure of the compression spring 7A for biasing the cam portion 5 to the cam engagement portion 6. Adjustment and setting of the magnitude (strength) of dynamic resistance is possible.

  Therefore, in this embodiment, as shown in FIGS. 1 to 4, the spacer member 8 is disposed at a position where it abuts against the end of the compression spring 7 </ b> A of the engagement biasing mechanism 7. Adjustment setting of the spring pressure of the compression spring 7A is performed.

  More specifically, the end portion of the compression spring 7A comes into compression contact with the spacer member 8 and is compressed and deformed. That is, for example, as shown in FIG. 3, the compression spring is equivalent to the thickness (d) of the spacer member 8. Since the entire length (1) of 7A is compressed and deformed shortly, this increases the biasing force of the compression spring 7A with respect to the cam portion 5. As a result, the rotational resistance due to the biasing force of the compression spring 7A ( (Rotating biasing force in the closing direction) increases.

  Therefore, the compression deformation amount of the compression spring 7A can be adjusted and set by setting the shape such as the size and thickness of the spacer member 8, and thereby the rotation resistance (the engagement bias of the compression spring 7) by the engagement biasing mechanism 7 can be set. It is possible to adjust and set the magnitude (strength) of the rotation biasing force in the closing direction.

  As shown in FIGS. 3 and 4, the spacer member 8 is also housed in the case-like mounting body 12 in the same manner as the cam portion 5 and the compression spring 7A, and the shaft member is disposed at the center portion. It is configured in a cylindrical shape having an anti-rotation-shaped insertion hole with respect to 13 and is configured to rotate together with the cam portion 5 via this shaft member 13.

  Further, the spacer member 8 is provided with a fitting insertion portion 8a into which the spring end of the torsion spring 4A of the opening rotation biasing mechanism 4 is fitted.

  In this embodiment, the opening and turning urging mechanism 4 uses the torsion spring 4A as described above, but the torsion spring 4A has an end portion along the axial direction as shown in FIGS. In this configuration, the extended end portion 4t is extended and arranged in the case-like attachment body 12 in a housed state. The torsion spring 4A is formed larger in diameter than the compression spring 7A and the cam portion 5, and as shown in FIGS. 3 and 4, the torsion spring 4A is housed in the case-like mounting body 12 and accommodated in the torsion spring 4A. The compression spring 7A and the cam portion 5 having a small diameter are arranged in a stored state.

  One extended end 4t of the torsion spring 4A is fitted into a spring end fitting insertion portion 9 provided on the cap body 12B at one end of the attachment body 12 to be held and held in a fitted state, and the other end is fixed. As shown in FIGS. 1 to 4, the extended end portion 4 t is inserted into the fitting insertion portion 8 a of the spacer member 8 disposed in the attachment body 12 and fitted in a fitted state, and the end of the attachment body 12. It is inserted into the spring end loose fitting long hole 17 of the portion, and is inserted into the spring end fitting insertion portion 9 provided in the anti-rotation mounting body 15 so as to be held and held in the fitted state, thereby preventing one of the torsion springs 4A. The other end is prevented from being rotated around the main body 1.

  That is, the end of the torsion spring 4A (extended end 4t) can be firmly secured by the spacer member 8 which can adjust and set the rotational resistance against the open rotation of the opening / closing part 2 by adjusting the engagement bias by the compression spring 7A. The torsion spring 4A is configured to be able to prevent the torsion spring 4A from being deformed or deformed in a strange direction.

  The hinge device H of the present embodiment configured as described above releases the closing holding mechanism 3 so that the opening / closing portion 2 is 170 ° from the closing position P1 with respect to the main body 1 as shown in FIG. Although it is configured to automatically open and rotate to the opened opening angle position P2 (maximum opening position), at this time, the opening / closing part 2 is pivoted and opened at once from the closing position P1 to the predetermined opening angle position P2. Instead, as shown in FIG. 6, the opening / closing part 2 opens and closes in the rotation range from the intermediate part position P3 opened about 90 ° to the main body part 1 to the opening angle position P2 opened 170 °. The opening force of the opening / closing portion 2 is decelerated due to the attenuation of the rotation bias of the opening rotation biasing mechanism 4 due to the expansion of the opening angle of the portion 2 and the rotation resistance of the engagement biasing mechanism 7 so as to be in a low-speed rotation state. In this low-speed rotation state, the open rotation bias mechanism The rotation resistance by the engagement urging mechanism 7 is adjusted and set so as to be able to reach the predetermined opening angle position P2 by being rotated and released by the (weakened) rotation or the own weight of the opening / closing part 2. .

  The operation of the present embodiment will be further described. When the closing holding mechanism 3 is released, the opening / closing portion 2 in the closed state is automatically opened with respect to the main body 1 by the rotational biasing force accumulated in the torsion spring 4A. It becomes. When the opening angle of the opening / closing part 2 is increased, the rotational biasing force of the torsion spring 4A is gradually attenuated, and the acceleration of the rotation of the opening / closing part 2 is gradually reduced. In addition, when the opening / closing part 2 is opened and rotated from the closed state illustrated in FIG. 3, the cam part 5 is engaged with and disengaged from the cam engaging part 6 in a direction away from the engagement bias of the compression spring 7 </ b> A. As a result of the sliding movement, the rotation resistance (rotation urging in the closing direction) resulting from the engagement urging of the compression spring 7A is increased.

  A point where the rotational resistance due to the engagement bias of the compression spring 7A, that is, the closing rotation bias is increased beyond the gradually rotating opening rotation bias of the torsion spring 4A (about 90 ° in this embodiment). The opening / closing unit 2 gradually stalls from the opened intermediate position P3), and finally enters a low-speed rotation state, and the opening / rotation biasing of the torsion spring 4A is weakened or the weight of the opening / closing unit 2 is reduced. The adjustment of the biasing force of the compression spring 7A, that is, the rotation resistance is adjusted so as to reach the predetermined opening angle position while maintaining the low-speed rotation state by both of them.

  Although the cam portion 5 is gradually slid relative to the cam engaging portion 6 by the opening and closing of the opening / closing portion 2 with respect to the main body portion 1, the cam convex portion 5 </ b> A of the cam portion 5 is the cam engaging portion 6. The cam portion 5 and the cam engagement portion 6 are at the maximum separation position at a position where the cam projection portion 5A is completely escaped from the sagging sliding portion 6A. Thereafter, the cam convex portion 5A is located above the sacrificial sliding portion 6A of the cam engaging portion 6. The shape of the cam engaging portion 6 is set so as to slide on a flat sliding surface. That is, the cam part 5 and the cam engagement part 6 take the maximum separation position in the middle of the rotation just before the opening / closing part 2 reaches the opening angle position of 170 °, and the maximum opening position is maintained while maintaining the maximum separation position. Is set to reach the opening angle position P2 of 170 °. This is because the further cam portion 5 and the cam engagement portion 6 slide apart in the rotation range in the vicinity of the maximum opening position where the opening rotation biasing mechanism 4 weakens, and the rotation resistance (rotation bias in the closing direction). This is because the opening / closing portion 2 may not reach the maximum opening position and may reversely rotate to the closing rotation. In order to prevent this, the cam portion 5 and the cam are located near the maximum opening position. The shape of the cam engaging portion 6 is set so that the sliding away from the engaging portion 6 stops.

  Since the present embodiment is configured as described above, the opening / closing section 2 provided with the display section 11 can be automatically opened by a one-touch operation, and the main body section 1 is unexpectedly dropped from the hand by the force of opening rotation at that time. Realizes an excellent one-touch open function without any problems.

  Moreover, the appropriate adjustment and setting of the engagement bias of the compression spring 7A that realizes such an excellent one-touch open function is simply the shape such as the size and thickness of the spacer member 8 interposed in the case-like mounting body 12. This can be done easily by setting. That is, for example, by appropriately setting the shape of the spacer member 8 at the time of designing, a desired rotation resistance can be easily realized, and if necessary, the spacer member 8 can be rotated by replacing it with a different shape. In terms of mass productivity and cost, the configuration of the hinge device H that is extremely versatile, with variable adjustment settings for dynamic resistance, and the simple configuration of the hinge device H that excels in versatility. Also excels.

  In the present embodiment, the hinge device H that exhibits the above-described excellent effects is applied to the pivot portion of the main body portion 1 having the operation portion 10 and the opening / closing portion 2 having the display portion 11. An electronic device (foldable mobile phone) that is extremely practical can be realized.

  Note that the present invention is not limited to this embodiment, and the specific configuration of each component can be designed as appropriate.

It is an explanation exploded perspective view of hinge device H concerning this example. It is an explanation exploded perspective view of hinge device H concerning this example. It is explanatory plane sectional drawing of the electronic device using the hinge apparatus H which concerns on a present Example. It is explanatory plane sectional drawing of the electronic device using the hinge apparatus H which concerns on a present Example. It is principal part explanatory drawing of the hinge apparatus H which concerns on a present Example. It is an explanation perspective view of hinge device H concerning this example. It is a figure which shows the opening / closing operation | movement of the electronic device using the hinge apparatus H which concerns on a present Example. It is a description perspective view of the electronic device using the hinge apparatus H which concerns on a present Example.

DESCRIPTION OF SYMBOLS 1 1st member 2 2nd member 3 Closure holding mechanism 4 Opening rotation biasing mechanism 4A Torsion spring 4t Extension end part 5 Cam part 6 Cam engaging part 7 Engagement biasing mechanism 7A Compression spring 8 Spacer member 8a Insertion | insertion Part 9 Spring end insertion part
10 Operation unit
11 Display section
12 Mounting body H Hinge device P1 Closing position P2 Opening angle position P3 Middle position

Claims (8)

Opening times by with and pivotally mounted to the first member and the second member configured to open pivoted from the closed state polymerized each other, and the the first member and the second member to release the closure retention mechanism a configuration with hinge device so that the second member relative to the first member by the rotation urging dynamic biasing mechanism is opened pivoted from the closed position to the predetermined opening angle position, the first member or a cam portion that rotates together with the second member, provided with a cam engagement portion that rotates together with the second member or the first member, sliding in the engagement separating direction of the cam portion or the cam engagement portion freely provided with an engagement biasing mechanism with engagement biasing by the compression spring to the one in the direction of engagement when said cam portion and the cam engagement portion is moved in the separating direction disengaged from, the closure after release of the holding mechanism, the relative said first member second When member is opened rotated by rotationally biased in the opening rotation urging mechanism, so that said cam portion with the opening rotation of the second member and the cam engagement portion is moved in the engagement emerged separating direction And the biasing force to be engaged from the state in which the cam portion and the cam engaging portion are not engaged is generated by the engagement biasing of the engagement biasing mechanism. configured for open pivot so that the resistance is given, arranging a spacer member to abut on the edge portion of the compression spring of the engagement biasing mechanism, wherein the contact between the spacer member configured to pivot resistance increases for opening rotation of said second member by with the engagement force of the engagement biasing mechanism by allowed to compressive deformation of the compression spring, such as the size and thickness of the spacer member and before can adjust setting the amount of compressive deformation of the compression spring by shape setting Hinge apparatus characterized by being configured so as to adjust setting the rotational resistance due to the engagement biasing mechanism. The open rotation urging mechanism, one end of the torsion spring so as to rotate with said first member, provided with the other end portion so as to rotate together with the second member, upon releasing the closure retaining mechanism , hinge device according to claim 1, characterized by being configured such that the second member relative to the first member by the rotational biasing force of the torsion spring to impart rotationally urged to open rotated. The torsion spring of the opening rotation urging mechanism has a shape having an extended end with an end extending along the axial direction, and the insertion member through which the extended end of the torsion spring is inserted is the spacer member. formed in, and characterized in that a configuration which arranged the spacer member on the end side of the torsion spring disposed to be fitted state embrace the extension end portion of the torsion spring fitting portion of the spacer member The hinge device according to claim 2.   A spring end insertion portion for inserting an extended end portion of the torsion spring into the first member or a member rotating with the first member, or the second member or a member rotating with the second member. 4. The hinge according to claim 3, wherein the extended end portion of the torsion spring is arranged in a state of being inserted into and inserted into the insertion portion of the spacer member and the spring end insertion portion. apparatus. Arranged smaller diameter the compression spring from the torsion spring in the torsion spring of the opening rotation urging mechanism, distribution and extension end portion of the torsion spring to be fitted state embrace the fitting portion of the spacer member 5. The structure according to claim 3, wherein the spacer member is disposed at a position in contact with an end portion of the compression spring disposed in the torsion spring on the end portion side of the torsion spring. The hinge apparatus of Claim 1. To release the closure retaining mechanism, when opening rotating the second member from the closed position relative to the first member to a predetermined open angular position, at least an intermediate portion position of the closed position and a predetermined angle of opening positions In the range from the predetermined opening angle position to the predetermined opening angle position, due to the attenuation of the rotation bias of the opening rotation biasing mechanism due to the expansion of the opening angle of the second member, and the rotation resistance by the engagement biasing mechanism. The momentum of the second member is decelerated to enter a low-speed rotation state, and in this low-speed rotation state, the opening rotation rotation mechanism or the weight of the second member opens and rotates and the predetermined rotation is performed. The hinge device according to any one of claims 1 to 5, wherein the rotation resistance by the engagement biasing mechanism is adjusted and set so as to be able to reach an open angle position. The cam portion or the cam engagement portion provided on the case-shaped mounting member, the mounting body of the case-shaped, engaging direction apart from the slide relative to the cam portion or the cam engagement portion is formed on the mounting member to a movably said cam engaging portion or the cam portion, which said compression spring urges engagement, characterized in that a configuration which arranged with the spacer member abuts against the compression spring housed state The hinge apparatus of any one of Claims 1-6. A body portion having an operating portion on the upper surface and the first member or the second member, the closing part having a display portion on Fushimi surface and the second member or the first member, and the opening and closing portion the body portion an electronic device using a hinge device, characterized in the end comrades on hinge equipment according to any one of the claims 1 to 7 Therefore, it linked pivotally.

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