JP4555203B2 - One push hinge device - Google Patents

Description

  The present invention is a one that is configured to be automatically opened to a predetermined angle by pressing a push button used for folding and rotating mechanisms of small electronic devices such as mobile phones, notebook computers, electronic notebooks, DVD monitors, and remote controllers. The present invention relates to a push hinge device.

  In general, a two-fold type mobile phone is configured by connecting a first case in which a keyboard is installed and a second case in which a liquid crystal monitor (LCD) that captures an image is incorporated with a one-push hinge device. By doing this, there is one that automatically rotates and opens the second housing provided with the liquid crystal monitor that is closed only by pressing the push button provided on the one-push hinge device.

  The conventional one-push hinge device used in this way includes a first member having a cam portion on one of a first member (housing) and a second member (housing) that are connected to each other so as to be freely opened and closed. A second engagement body having a cam engagement portion that engages with the cam portion is provided on the other side. When the first engagement body and the second engagement body are engaged, the first member and the second And an engagement biasing body configured to bias at least one of the first engagement body and the second engagement body in the engagement direction, and the first engagement body and the second engagement body. A rotation urging body that urges at least one of the first and second engagement bodies in a rotation direction, and at least one of the first engagement body and the second engagement body is urged by the urging force of the rotation urging body. The first member and the second member can be automatically opened and turned by being biased in the turning direction. It has been proposed to (for example, see Patent Document 1.).

  Further, the conventional one-push hinge device is a hinge that connects the first member (housing) and the second member (housing) to each other so as to be openable and closable, and has a rotation preventing means on the outer periphery. A case body inserted and locked in the mounting cylinder portion of either the member or the second member, and the one end side of the case body passing through the central axial direction of the case body is locked to the case body. And a slide key having a locking portion at one end attached to the other end of the shaft so as to be slidable in the axial direction while being constrained to rotate by the shaft. And an outer cam that is inserted and locked in the other mounting cylinder portion of the first member or the second member and is constrained to rotate on the shaft while being slidably mounted in the direction of the internal axis. And the tip of the slide key along with the shaft in the axial direction of the center An inner cam that is slidably accommodated in an axial direction in an outer cam that is inserted therethrough, and that has an engaging convex portion that engages and disengages according to the locking portion of the slide key and the rotation angle, and faces the inner cam and the outer cam A slider cam that is slidably moved in the axial direction while restricting rotation in the case body while penetrating the shaft in the axial direction of the central portion thereof, and a first elastically provided between the slider cam and the case body It has a compression spring, a second compression spring having a weaker elasticity than the first compression spring provided between the slide key and the outer cam, and a push button attached to the slide key. Normally, the slider cam The convex portion of the cam portion is engaged with the locking convex portion of the inner cam that is prevented from rotating by the slide key. , By performing a pressing operation on the push button, to dissociate the engagement between the engaging portion and the engaging convex portion of the inner cam of the slide key configured to rotate the slider cam with the case body. In the hinge configured as described above, the first member and the second member are automatically opened to a usable angle or a predetermined opening angle by pressing a push button provided on the hinge. It can be manually closed (see, for example, Patent Document 2).

  In the conventional one-push hinge device as described above, the first member and the second member are automatically opened using the biasing force (open force) of the torsion spring member, and the unevenness is opposed to each other. Using a cam structure in which the meshing cam surfaces are brought into pressure contact with each other by a biasing force of a spring, a biasing force (locking force) is generated so that the first member and the second member are pressed against each other in a closed state. is doing.

  In such a conventional one-push hinge device, the first member and the second member are closed by the opening force for opening the first member and the second member until the lock that holds the closed state by the one-push operation is released. It is necessary to have a strong lock.

  For this reason, in the conventional one-push hinge device, the cam structure that generates a large locking force is formed with a steep slope between the inclined surfaces (slopes that smoothly connect the concave and convex surfaces of the cam), Grooves must be deeply formed.

  When manufacturing a member having a deep cam structure with a concave groove that is in sliding contact with a steep slope used in such a conventional one-push hinge device, since it is not strong when manufactured by casting, the metal powder injection molding method is used. There is a problem that it is necessary to manufacture and the manufacturing cost becomes high.

  In such a conventional one-push hinge device, if the locking force generated in the cam structure is excessively increased, the operation force (push force) required for the one-push operation becomes too large, or the push button operating stroke ( (Push stroke) becomes too long, and there is a problem that it is difficult to design with a balance between the open force and the lock force.

  In the conventional one-push hinge device described above, the biasing force applied by the torsion spring member acting in the opening direction of the first member and the second member, and the biasing force applied by the cam structure acting in the direction of closing the first member and the second member, Is not separated, it is difficult to generate a sufficient locking force required to keep the first member and the second member closed.

In addition, when a one-push hinge device is mounted on a thin mobile phone, the one-push hinge device itself is required to be downsized. Therefore, a heavy-weight member with a built-in mobile phone LCD monitor is rotated. There is a problem that it is difficult to configure a mechanism capable of locking an open force with a large rotational torque for automatically performing an opening operation in a limited narrow space.
JP 2003-322141 A JP 2004-150498 A

  In view of the above-described points, the present invention can release the lock that holds the closed state by a one-push operation and increase the opening force for automatically opening the first member and the second member as much as necessary. A new one-push hinge device that can increase the locking force to press the first member and the second member against each other when the two members are in the closed state, and can be reduced in size and manufactured at low cost. The purpose is to do.

The one-push hinge device according to claim 1 is fixed to one of the two foldable housings , has a bottom at one end, and an engagement groove on the other open end. A cylindrical housing provided with an end plate that is fixed to the other casing and that closes an opening is provided at one end, the housing and the axis are aligned, and the open end and the end plate are connected to each other. A cylindrical case rotatably connected by a positioning and fixing member; a shaft provided on the axis through the shaft hole of the end plate and having a first lock pin and a second lock pin projecting in a radial direction ; , Housed in the housing , one end is attached to the bottom , the other end is attached to a closing force spring holder that rotates integrally with the shaft, and the two casings are closed in the direction of closing the housing. biasing the housing about the axis And power spring, is accommodated in the housing, and a shaft hole for inserting the shaft rotatably and slidably therein, a first lock pin holding portion for releasably holding said first locking pin is opened, A closing force pin holder in which an engaging portion that engages with the engaging groove projects in the radial direction of the outer peripheral surface, is housed in the case, and one end is attached to the end plate, and the other end An opening force spring that is attached to an opening force spring holder that rotates integrally with the shaft, and is housed in the case, and an opening force spring that urges the case around the axis in a direction to open the two housings. wherein a shaft hole for rotatably inserted and sliding the shaft, the second lock pin holding portion for releasably holding said second locking pin is opened, is engaged with the base portion of the casing on the outer peripheral surface Pinhoru-opening force Rukakarigo portion is provided When provided on the axis, which operating portion of the one end portion protrudes from the bottom, is the other end into contact with the distal end of the shaft, by pushing the operating portion, the shaft the is moved in the axial direction, the first locking pin is disengaged from the front Symbol first lock pin holding portion, the said closing force spring of two second locking pin is held in the second locking pin holding portion from a closed state to bias in the closing direction of the housing, the first locking pin is held in the first lock pin holding portion before reporting, the disengaged the second locking pin before Symbol second lock pin holding portion An opening force spring includes a push button for shifting to an open state in which the two springs are biased in a direction to open the housing .

  By configuring as described above, the urging force of the opening force spring is not activated when the closed state is reached, and the closing force spring exerts the urging force to maintain the closed state. In addition, the biasing force of the closing force spring does not work when the opening state is reached, and the opening force spring applies the biasing force to maintain the open state. Therefore, in this one-push hinge device, the opening force of the opening spring (open force) and the closing force of the closing force spring (locking force) acting in the opposite direction are generated in accordance with switching between the closed state and the open state. Since switching is performed so as to work separately, the opening force and the locking force can be set as large as necessary, so that the closed state can be maintained by a sufficient locking force.

According to a second aspect of the present invention, in the one-push hinge apparatus according to the first aspect, a pin guide is disposed between the closing force pin holder and the closing force spring holder, and the pin guide includes the housing. An engaging portion engaged with the engaging groove, a shaft hole through which the shaft is rotatably and slidably inserted , and a guide guide portion in which the first lock pin is placed in the closed state. The guide guide portion is provided with a guide slope for guiding the first lock pin to be inserted into the first lock pin holding portion when the housing side is manually operated in the opening direction. It is characterized by that.

  By configuring as described above, in addition to the operation and effect of the invention described in claim 1, the push button is pressed even when the one housing and the other housing are manually opened. As with the operation, it can be automatically opened.

According to a third aspect of the present invention, in the one-push hinge device according to the first or second aspect, the rotary cam housed in the case and installed to rotate integrally with the case, and the shaft and a fixed cam that is installed so as to rotate integrally, wherein the rotary cam and said stationary cam and spring-loaded cam for urging the can so that is pressed in a state of facing, between said rotary cam said fixed cam between surface portions facing each is, when the relative predetermined angular rotation to become the open state, provided with rows emergence arm surface click action mutual concave-convex shape is fit tacked fits, the It is characterized by that.

  By configuring as described above, in addition to the operation and effect of the invention according to claim 1 or 2, when the one-push hinge device is operated in an open state, one housing and the other housing Can be opened and held in a predetermined use state.

  According to the biaxial hinge device with a rotation restricting function of the present invention, it is possible to increase the opening force required to automatically open the first member and the second member by releasing the lock that holds the closed state by a one-push operation. The locking force for press-contacting the first member and the second member with each other when the first member and the second member are in the closed state can be increased as much as necessary, and the size can be reduced and the manufacturing cost can be reduced. is there.

  Hereinafter, embodiments of the one-push hinge apparatus of the present invention will be described with reference to FIGS.

  FIG. 1 is an overall schematic configuration diagram of a one-push hinge device, FIG. 2 is an exploded perspective view thereof, 1 is a housing, 2 is a case, and 3 is a shaft.

  The housing 1 is formed in a shape in which a bottom is provided at one end of a substantially cylindrical shape, and a circular through hole 4 is formed in the bottom. The bottom of the housing 1 is provided with a support hole 5 for inserting and fixing one end of the spring. Further, the housing 1 is provided with an engaging groove 6 by notching a predetermined portion of the cylindrical end portion not provided with a bottom portion into a U-shape. A push button (switch) 7 in which a flange is integrally formed at the bottom of a cylinder is fitted to the circular through hole 4 in the housing 1 formed in this manner so as to be able to appear and retract.

  As shown in FIG. 2 and FIG. 9, the case 2 is provided with a case end plate 9 formed in a disc shape at one end of a case main body 8 formed in a cylindrical shape, and the case main body 8 and the case end plate 9. Are configured to rotate together.

  A case lid 10 is integrally attached to the other end of the case body 8. The case end plate 9 and the case lid 10 are provided with shaft holes 11 and 12 for supporting the shaft 3 at the center thereof. The case end plate 9 is formed with an arcuate opening 13 for engaging with a stop at a predetermined position around the shaft hole 11.

  The housing 1 and the case 2 formed in this way are slidably fitted around the case end plate 9 to the stepped portion 1A of the cylindrical end portion where the bottom portion of the housing 1 is not provided. By holding these joint portions by the member 21, the housing 1 and the case 2 are configured to be relatively free to rotate.

  Although this one-push hinge device is not shown, for example, when used as a hinge for a two-fold type cellular phone, the housing 1 is fixed to the first housing side where the keyboard of the cellular phone is installed, and the case 2 is fixed to the cellular phone. It is used by being fixed to the second housing side in which a liquid crystal monitor (LCD) for capturing an image is incorporated. In addition, the housing 1 and the case 2 may be provided with a fitting structure by a convex portion or a concave portion in order to fix the housing 1 and the case 2 without being idle.

  As shown in FIG. 2, the shaft 3 is a single rod-shaped member, and a cylindrical thin shaft portion 14 is formed at one end portion of the shaft 3, and a predetermined length portion following the thin shaft portion 14 and the other The middle shaft portions 15A and 15B are formed at the end portions of the two, and the thick shaft portion 16 is formed between the two middle shaft portions 15A and 15B.

  These middle shaft portions 15A and 15B have a spline function shape having an oval shape (a cross-sectional shape having a major axis and a minor axis other than a circle) in which an arc portion having a circular cross section is cut along the axial direction at each predetermined portion. Portions 17A and 17B are formed. The thick shaft portion 16 is formed with a spline function shape portion 18 having an oval shape (a cross-sectional shape having a major axis and a minor axis other than a circle) in which opposing circular arc portions having a circular cross section are cut along the axial direction.

  The shaft 3 is provided with a through hole that diametrically penetrates the shaft 3 at a predetermined position of the middle shaft portion 15A adjacent to the thin shaft portion 14, and the first lock pin 19 is passed through the through hole. The two ends are attached integrally so that they extend equally in the radial direction.

  Further, the thick shaft portion 16 of the shaft 3 is pierced with a through hole penetrating the shaft 3 in a diametrical direction at a predetermined position close to the middle shaft portion 15B at the end, and the second lock pin 20 is passed through the through hole. Then, the both ends are attached integrally so as to extend in the radial direction equally.

  As can be seen from FIGS. 1 and 2, in the shaft 3, one middle shaft portion 15 </ b> A is inserted into the shaft hole 11 of the case 2, and the other middle shaft portion 15 </ b> B is inserted into the shaft hole 12 of the case lid 10. The thin shaft portion 14 is disposed so as to face the bottom surface of the push button 7 mounted inside the housing 1.

  In this one-push hinge device, a push button return spring 22, a closing force spring 23, a closing force spring holder 24, a pin guide 25, and a closing force pin holder 26 are arranged in a portion of the shaft 3 in the housing 1.

  In this one-push hinge device, a case rotating plate 27, an opening force spring 28, an opening force spring holder 29, an opening force pin holder 30, a spring receiving member 31, and a shaft return spring 32 are provided on a portion of the shaft 3 in the case 2. A cam pressing spring 33, a cam washer 34, a rotating cam 35 and a fixed cam 36 are arranged.

  In this one-push hinge device, a closing force spring holder 24 is provided with an insertion hole 24A having a substantially the same cross section as the spline function shape portion 17A of the shaft 3 and a support hole 24B into which an end of the closing force spring 23 is inserted. Set up. The closing force spring holder 24 configured as described above is assembled so that the spline function shape portion 17A is inserted into the insertion hole 24A so as to rotate integrally with the shaft 3.

  A push button return spring 22 is disposed between the closing force spring holder 24 and the push button 7, and urges the tip of the push button 7 to protrude from the circular through hole 4 of the housing 1.

  Further, between the closing force spring holder 24 and the housing 1, a closing force spring 23, which is a torsion coil spring, is inserted into the support hole 24 </ b> B through one bent protruding end of the closing force spring 23. The other bent end of the force spring 23 is inserted into the support hole 5 of the housing 1 and installed.

  Further, the pin guide 25 and the pin holder for closing force 26 are connected to the pin guide 25 through the central shaft portion 15A in which the first lock pin 19 of the shaft 3 is disposed in the shaft holes 25B and 26B drilled in the respective central portions. The shaft 3 is movable in the axial direction with respect to the pin holder 26 for closing force, and the pin guide 25 and the pin holder 26 for closing force are arranged so as to be freely rotatable around the shaft 3.

  The pin guide 25 and the pin holder 26 for closing force are integrally formed with the housing 1 by engaging engaging portions 25A and 26A projecting in an arc shape on the outer peripheral portions of the pin guide 25 and the engaging groove 6 of the housing 1, respectively. Assemble to rotate.

  As shown in FIGS. 5 and 6, the pin guide 25 is arranged in the diameter direction of the shaft hole 25 </ b> B, and the first lock pin 19 is used for closing force during manual operation formed so as to be rotationally symmetrical with each other. In addition to guiding to the pin holder 26, a guide guide portion 37 is provided for allowing the first lock pin 19 to freely rotate by a predetermined angle. The guide guide portion 37 is formed in a concave shape having a trapezoidal cross section having one guide slope 37A.

  Further, as shown in FIG. 7, the pin holder 26 for closing force is integrally formed with a lock pin holding portion 38 which is an opening extending in a fan shape in the diameter direction of the shaft hole 26B. The lock pin holding portion 38 is configured such that the first lock pin 19 can be freely inserted into a predetermined angle and freely retained. Further, the lock pin holding portion 38 is provided with a guide chamfering portion 38A for guiding the first lock pin 19 in and out of the guide slope 37A provided in the guide guide portion 37 of the pin guide 25.

  As shown in FIGS. 1 and 2, the case rotating plate 27 arranged on the inner side of the case 2 is a member for transmitting an opening force (open force) that is an urging force of the opening force spring 28 to the case 2. . For this reason, an arcuate protrusion 27 </ b> A that fits into the arcuate opening 13 of the case end plate 9 is provided on the flat portion of the case rotating plate 27. Further, an insertion hole 27 </ b> B into which one end portion of the opening force spring 28 that is bent and protruded is inserted in the arcuate protrusion 27 </ b> A portion of the case rotating plate 27.

  The case rotating plate 27 configured as described above is integrally formed with the case 2 by placing the arcuate protrusion 27A in contact with the inner surface of the case end plate 9 in a state in which the arcuate protrusion 27A is fitted in the arcuate opening 13. Install to rotate.

  The opening force spring holder 29 is a member for transmitting an opening force (open force) that is an urging force of the opening force spring 28 to the shaft 3. For this reason, a fitting insertion hole 29 </ b> A corresponding to the cross-sectional shape of the spline function shape portion 18 of the thick shaft portion 16 is formed in the center of the flat surface of the opening force spring holder 29. Further, at a predetermined position of the opening force spring holder 29, an insertion hole 29B into which the other end portion of the opening force spring 28 which is bent and protruded is inserted. The opening force spring holder 29 configured as described above is installed so as to rotate integrally with the shaft 3 by fitting the fitting insertion hole 29 </ b> A into the spline function shape portion 18 of the shaft 3.

  An opening force spring 28, which is a torsion coil spring, is disposed between the case rotating plate 27 and the opening force spring holder 29 thus arranged, and one end of the opening force spring 28 is fitted into the insertion hole 27B. By inserting the other end of the opening force spring 28 into the insertion hole 29B of the opening force spring holder 29, a rotational torque that is an opening force (open force) is generated between the case 2 and the shaft 3. Configure.

  As shown in FIGS. 1 and 2, an opening force pin holder 30 is disposed at a predetermined position in the case 2 that can correspond to the second lock pin 20 provided on the shaft 3. The opening force pin holder 30 is formed by notching both ends in the diameter direction of the disk to form each short side portion 30A, and the short side portion 30A is formed inside the case main body 8 and has a rotation stop base (not shown). Is installed so as to rotate integrally with the case 2.

  The pin holder 30 for opening force is such that the shaft 3 can move in the axial direction through the thick shaft portion 16 portion of the shaft 3 into the shaft hole 30B drilled in the center thereof, and the pin holder for opening force around the shaft 3 30 is configured to be freely rotatable.

  Further, as shown in FIG. 8, the pin holder 30 for opening force has a second lock pin holding portion 39 that is an opening extending in a substantially fan shape (or may be rectangular) in the diameter direction of the shaft hole 30B. Are integrally formed. The second lock pin holding portion 39 is configured such that the second lock pin 20 can be freely inserted into a predetermined angle and freely retained. Further, the second lock pin holding portion 39 is provided with a chamfering portion 39A for guide for guiding the entering / exiting operation of the second lock pin 20.

  As shown in FIGS. 1 and 2, the spring receiving member 31 is provided with an insertion hole 31 </ b> A corresponding to the cross-sectional shape of the spline function shape portion 17 </ b> B of the shaft 3. The spring receiving member 31 is disposed so that the middle shaft portion 15B portion of the shaft 3 is inserted into the fitting insertion hole 31A and abuts against the stepped portion on the thick shaft portion 16 side.

  As shown in FIGS. 1 and 2, a rotating cam 35 is disposed at a predetermined position in the case 2 corresponding to the spline function shape portion 17 </ b> B of the shaft 3. The rotating cam 35 is formed by notching both end portions in the diameter direction of the disk to form each short side portion 35A, and the short side portion 35A rides on a rotation stop base (not shown) formed inside the case body 8. In order to rotate integrally with the case 2.

  The rotating cam 35 is movable in the axial direction through the shaft portion 35B of the shaft 3 through a shaft hole 35B formed in the center thereof, and the rotating cam 35 is freely rotatable around the shaft 3. Configure as follows.

  A fixed cam 36 is disposed on the spline functional shape portion 17B of the shaft 3 so as to face the rotating cam 35. A fitting insertion hole 36A corresponding to the cross-sectional shape of the spline function shape portion 17B of the shaft 3 is formed in the fixed cam 36. The fixed cam 36 is disposed so as to rotate integrally with the shaft 3 by inserting the spline function shape portion 17B portion of the middle shaft portion 15B through the fitting insertion hole 36A.

  A cam surface that performs a click operation to prevent the rotary cams 35 and the fixed cams 36 from engaging with each other when they are relatively rotated at an angle of 168 degrees so as to be temporarily fixed. Configure.

  As shown in FIGS. 1 and 2, a shaft return spring 32, which is a compression coil spring, is provided between a spring receiving member 31 disposed in the middle shaft portion 15 </ b> B portion and a cam washer 34 disposed adjacent to the rotating cam 35. Is urged to move the shaft 3 to the push button 7 side.

  Further, a cam pressing spring 33, which is a compression coil spring, is provided between the pin holder 30 for opening force arranged in the middle shaft portion 15B and the rotating cam 35, and the rotating cam 35 and the fixed cam 36 are The cam surfaces are configured to be in pressure contact with each other.

  Next, the operation and operation of the one-push hinge apparatus configured as described above will be described.

  For example, although not shown, when this one-push hinge device is used as a hinge for a two-fold type mobile phone, the case 1 is fixed to the first case in which the keyboard of the mobile phone to which the housing 1 is fixed is installed. When the second casing on which the liquid crystal monitor (LCD) that captures the image of the mobile phone is closed, the closed state shown in FIGS. 1, 3, and 4 is obtained.

  In this closed state, the first lock pin 19 is freely pivoted within the guide guide portion 37 within a range of a predetermined angle, so that the cellular phone keyboard fixed to the housing 1 around the shaft 3 is provided. An urging force that rotates in the direction of closing the first casing that is installed works.

  At the same time, in the closed state, the second lock pin 20 of the shaft 3 is held in the second lock pin holding portion 39 of the opening force pin holder 30 fixed to the case 2 so as to be prevented from rotating. Since the case 2 and the shaft 3 are relatively unrotatable, an opening force (open force) that is an urging force of the opening force spring 28 for rotating the case 2 and the shaft 3 in the opening direction. (Power) is stopped so that it does not work.

  For this reason, in the closed state, the second housing on which the liquid crystal monitor (LCD) that captures the image of the mobile phone fixed to the case 2 with respect to the shaft 3 is immovable and immovable. On the other hand, a biasing force that rotates in a direction in which the first casing in which the keyboard of the mobile phone fixed to the housing 1 is installed is closed (so that the first casing and the second casing are in pressure contact with each other). (The locking force that is pulled in) works, and the mobile phone is held in a folded state.

  Next, when the push button 7 is pushed to open the cellular phone closed in half in a use state, the shaft 3 moves in the direction of the arrow A in the figure, and the first lock pin 19 circles. As shown in FIG. 10, the end of the lock pin holding portion 38 slides along the circumference and the pin holder 26 for closing force is pushed slightly, so that the first lock pin 19 is guided to the guide portion of the pin guide 25. The second lock pin 20 is held in the lock pin holding portion 38 of the pin holder 26 for closing force so as to be prevented from rotating, and the second lock pin 20 of the pin holder 30 for opening force is simultaneously released. It will be set as the state which escapes from the holding | maintenance part 39, makes the pin holder 30 for opening force rotate freely, and makes opening force (open force) work.

  In a state where the opening force (open force) is applied, the first lock pin 19 is held in the lock pin holding portion 38 of the pin holder 26 for closing force so as to be prevented from rotating, and the pin holder 26 for closing force 26 Is integrally fixed to the housing 1, the housing 1, the closing force pin holder 26, and the shaft 3 are integrally fixed, and the urging force of the closing force spring 23 causes the housing 1 and the shaft 3 to move together. It becomes relatively immovable.

  At the same time, when the second lock pin 20 is detached from the second lock pin holding portion 39 and the opening force pin holder 30 integrated with the case 2 is freely rotatable around the shaft 3, the case 2 is opened by the opening force spring 28. Is rotated around the shaft 3 by the opening force (open force). Then, the second housing in which the liquid crystal monitor (LCD) that captures the image of the mobile phone fixed to the case 2 is rotated to the use position (position rotated by 168 degrees) and fixed to the rotating cam 35. It is temporarily fastened by the action of the cam surface with the cam 36 and held in the use position.

  In addition, since the action of the cam surfaces of the rotating cam 35 and the fixed cam 36 performs a click operation to stop the temporary cam so that it is temporarily fastened, the user is manually coupled via a one-push hinge device. It is possible to perform an operation of opening the first casing and the second casing of the telephone at a wider angle or folding them in a closing direction.

  Next, a description will be given of a case where the user manually opens the first housing and the second housing of the mobile phone to a predetermined angle in order to open the mobile phone closed in half in a use state (hand opening operation). To do.

  In this case, the one-push hinge device is in the closed state shown in FIGS. 1, 3, 4, and 10, and the first lock pin 19 rotates within the guide guide portion 37 within a predetermined angle range. Since the mobile phone is freely placed, when the first housing and the second housing of the mobile phone are manually opened, the first housing in which the mobile phone keyboard fixed to the housing 1 is installed, The first lock pin 19 starts to climb the guide slope 37 </ b> A in the state shown in FIG. 11 rotated by 15 degrees around the shaft 3 against the biasing force of the closing force spring 23.

  When the first housing and the second housing of the mobile phone are continuously opened manually, the first lock pin 19 climbs up the guide slope 37A of the pin guide 25 to lock the lock pin of the pin holder 26 for closing force. 12 enters the holding portion 38 while being guided by the guide chamfering portion 38A and enters the state (unlocked state) in which the above-described opening force (open force) is applied.

  In the state in which this opening force (open force) is applied, the first lock pin 19 is held in the lock pin holding portion 38 as described above, so that the housing 1 and the shaft 3 are moved by the urging force of the closing force spring 23. It becomes relatively immovable.

  At the same time, the second lock pin 20 is disengaged from the second lock pin holding part 39, and the case 2 is rotated around the shaft 3 by the opening force (open force) of the opening force spring 28, and the image of the mobile phone is displayed. The second housing in which the liquid crystal monitor (LCD) to be copied is installed is automatically rotated to the use position and held.

  Next, a case where the user manually closes the cellular phone opened in the use state in two will be described.

  When the user manually closes, when the user manually operates the mobile phone to fold the first housing and the second housing in two, a liquid crystal monitor (LCD) that captures an image is installed. The case 2 fixed integrally with the second housing is rotated around the shaft 3 against the urging force of the opening spring 28.

  Then, when the user manually folds the first housing and the second housing of the mobile phone into two and returns them to the closed position, the first lock pin 19 faces the guide guide portion 37 so that it can be inserted. Then, the second lock pin 20 faces the second lock pin holding portion 39 so as to be insertable, and the shaft 3 is pushed back in the direction opposite to the arrow A direction by the biasing force of the shaft return spring 32, so that the first lock pin 19 Is inserted into the guide guide portion 37, and the second lock pin 20 is inserted into the second lock pin holding portion 39, and the closed state shown in FIGS. 1, 3, 4, and 10 is obtained.

  In the one-push hinge device that opens and closes in this way, the urging force of the opening spring 28 does not work when it is in the closed state, and the closing force spring 23 exerts the urging force to maintain the closed state. become. Further, in this one-push hinge device, the urging force of the closing force spring 23 does not work when it is in the open state, and the opening force spring 28 exerts the urging force to maintain the open state.

  Therefore, in this one-push hinge device, the opening force (opening force) of the opening force spring 28 and the closing force (locking force) of the closing force spring 23 acting in the opposite direction with the switching between the closed state and the open state. Are switched to work separately, so that the closed state can be maintained by a sufficient locking force.

  In addition, this invention is not limited to embodiment mentioned above, Of course, it can take other various structures in the range which does not deviate from the summary of this invention.

It is a general | schematic fragmentary sectional assembly figure which shows the principal part of the one push hinge apparatus concerning embodiment of this invention. It is a disassembled perspective view of the one push hinge apparatus concerning embodiment of this invention. It is a perspective view which takes out and shows the principal part of the one push hinge apparatus concerning embodiment of this invention. It is a perspective view which shows the place which took out the principal part of the one push hinge apparatus concerning embodiment of this invention, and was seen from the other direction. It is an expansion perspective view which takes out and shows the pin guide and pin holder for closing force of the one push hinge apparatus concerning embodiment of this invention. It is an expansion perspective view which takes out the pin guide of the one push hinge apparatus concerning embodiment of this invention, and shows a guidance guide part. It is an expansion perspective view which takes out and shows the pin holder for closing force of the one push hinge apparatus concerning embodiment of this invention. It is an expansion perspective view which takes out and shows the pin holder for opening force of the one push hinge apparatus concerning embodiment of this invention. It is an expansion perspective view which takes out and shows the case of the one push hinge apparatus concerning embodiment of this invention. In the one-push hinge device according to the embodiment of the present invention, the operation relationship between the first lock pin, the pin guide, and the pin holder for closing force when the push button is operated to open, and the second lock pin and opening force FIG. 6 is a partial cross-sectional explanatory view showing the operational relationship of the pin holder for use. In the one-push hinge apparatus according to the embodiment of the present invention, the operation relationship between the first lock pin, the pin guide, and the closing force pin holder in the initial operation when manually opened, and the second lock pin and the opening force pin holder It is a partial cross-sectional explanatory drawing which shows operation | movement relationship. In the one-push hinge device according to the embodiment of the present invention, the operation relationship between the first lock pin, the pin guide, and the pin holder for closing force in the latter stage of operation when opening by manual operation, and the relationship between the second lock pin and the pin holder for opening force It is a partial cross-sectional explanatory drawing which shows operation | movement relationship.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Housing 2 Case 3 Shaft 4 Circular through-hole 5 Support hole 6 Engaging groove 7 Push button 8 Case body 9 Case end plate 10 Case lid 11 Shaft hole 12 Shaft hole 19 Lock pin 20 Lock pin 25 Pin guide 26 Pin holder 30 Pin holder 35 Rotating cam 36 Fixed cam 37 Guide guide part 37A Guide slope 38 Lock pin holding part 39 Lock pin holding part

Claims (3)

A cylindrical housing fixed to one of the two foldable housings, provided with a bottom at one end and an engagement groove on the other open end ;
An end plate that is fixed to the other casing and closes the opening is provided at one end, the housing and the axis are aligned, and the open end and the end plate are rotatably connected by a positioning fixing member. A cylindrical case,
A shaft provided through the shaft hole of the end plate on the axis, and projecting the first lock pin and the second lock pin in the radial direction ;
Housed in the housing , one end is attached to the bottom , the other end is attached to a closing force spring holder that rotates integrally with the shaft, and the axis line is closed in the direction of closing the two housings. A closing force spring that biases the housing about ;
A shaft hole that is housed in the housing and through which the shaft is rotatably and slidably inserted, and a first lock pin holding portion that removably holds the first lock pin are opened, and the diameter of the outer peripheral surface A closing force pin holder from which an engaging portion that is engaged with the engaging groove protrudes in a direction;
The case is housed, one end is attached to the end plate , the other end is attached to an opening force spring holder that rotates integrally with the shaft, and the two cases are opened in the direction An opening spring for urging the case around an axis ;
A shaft hole that is housed in the case and is inserted into the shaft so as to be rotatable and slidable, and a second lock pin holding portion that removably holds the second lock pin are opened. An opening force pin holder provided with an engaging portion to be engaged with the base portion of
Provided on the axis, the operation part at one end protrudes from the bottom part, the other end abuts against the tip of the shaft, and pushes the operation part to move the shaft in the axial direction. is moved to the first locking pin is disengaged from the front Symbol first lock pin holding portion, the second locking pin is the closing force spring is held in the second lock pin holding portion has two said housing from the Close closed state biases the first locking pin is held in the first lock pin holding portion before reporting, the opening force and the second locking pin is disengaged from the front Stories second lock pin holding portion A push button for shifting to an open state in which a spring biases the two housings in the opening direction ;
One-push hinge device characterized by having. A pin guide is disposed between the closing force pin holder and the closing force spring holder. The pin guide rotates and slides the engaging portion engaged with the engaging groove of the housing and the shaft. A shaft hole that is movably inserted , and a guide guide portion for freely placing the first lock pin in the closed state are provided, and the guide guide portion is manually operated in a direction in which the housing side is opened. The one-push hinge apparatus according to claim 1, further comprising a guide slope that guides the first lock pin to be inserted into the first lock pin holding portion. A rotating cam housed in the case and installed to rotate integrally with the case;
A fixed cam installed to rotate integrally with the shaft;
A spring-loaded cam for urging the so that the pressure in a state in which the rotating cam and said fixed cam is facing,
The inter-surface portion opposed to the rotary cam and the fixed cam, when it becomes to the open state relative predetermined angular rotation, rows click action mutual concave-convex shape is fit tacked fits and the emergence beam surface,
The one-push hinge device according to claim 1, wherein the one-push hinge device is provided.

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