TWI357956B - Hinge mechanism - Google Patents

Description

I35J956 October 19, 100 Amendment Replacement Page VI. Description of the Invention: [Technical Field of the Invention] [0001] The present invention relates to a hinge structure, and more particularly to a hinge structure for use in a folding type portable electronic device. [Previous Technology] [0002] With the development of wireless communication and information processing technology, portable electronic devices such as mobile phones and PDAs are emerging, allowing consumers to fully enjoy the convenience brought by high technology whenever and wherever they are. Portable electronic devices are favored by consumers because of their exquisite structure. [0003] Today's manufacturers are striving to reduce the size, size and weight of foldable portable electronic devices to meet the needs of a wide range of consumers. The foldable portable electronic device usually connects the body and the flip cover by a hinge structure. The hinge structure usually includes a main shaft, a cam, a cam follower and a spring, and the magazine is sleeved on the main shaft, and one of the cam and the cam follower is in direct contact with the spring, and the cam and the cam follower are always maintained under the elastic force of the spring. Contact and match. [0004] Although the hinge structure described above can realize the opening and closing of the mobile phone, since the cam and the cam follower are always in contact under the action of the spring, and the mobile phone is opened and closed, the cam and the cam follower are relatively rotated. Sliding friction will occur, and the energy loss is more serious. In addition, the sliding friction between the cam and the cam follower is easy to wear, thereby affecting the service life of the hinge structure. In addition, when the cover body is opened relative to the body, the action of the spring may cause a large impact on the cover body, thereby easily damaging the portion where the cover body and the body are connected to each other. 094116671 However, there are many hinge structural components and complicated structure. Cam and follower form number A0101 Page 3 / 21 pages 1003384699-0 [0005] 1357956 October 19, 100 It is not stable, is not easy to assemble, and when the cover body is opened relative to the body, a large force is generated between the cover body and the body due to the joint action of the spring and the cam, so that the parts where the cover body and the body are connected to each other are easily broken. In view of the above, it is necessary to provide a hinge structure that is simple in structure, stable, and has a long service life. SUMMARY OF THE INVENTION [0007] In view of the above disadvantages of the prior art, it is necessary to provide a Qin chain structure with less energy loss and long service life.

[0008] A hinge structure includes a shaft, a follower, a cam, and an elastic member. The shaft is provided with a threaded portion; the follower is a columnar body, and one end thereof is provided with a cam surface; the cam is a columnar body, and a screw hole is formed on the screw hole, and the screw hole is screwed to the thread portion of the shaft , a cam surface is provided on one end surface thereof. The elastic member provides a force for engaging the cam surface of the follower with the cam surface of the cam, and when the elastic potential energy of the elastic member is released, the push-up follower rotates with the cam together with the shaft, and the cam and the follower No relative rotation. [0009] Compared with the prior art, the number of components of the hinge structure is small, and the locking process of the elastic component is achieved by the cooperation of the threaded portion of the shaft and the screw hole of the follower, so that the opening process is more It is gentle, so that the cover body can be prevented from being excessively impacted on the body. At the same time, by the cam fit, semi-automatic closing can be achieved when the cover body is closed relative to the body. [Embodiment] The hinge structure of the present invention is applicable to a folding or flip type portable electronic device (not shown) having a body and a cover. This embodiment is described by using the telephone as an example for the operation of 094116671, Form No. A0101, Page 4 of 21, 1003384699-0, I35J956, October 19, 100. The mobile phone includes a body and a cover [0011] Please refer to The hinge structure 10 of the first preferred embodiment of the present invention includes a shaft 12, a spring 14, a follower 16 and a cam 18. [0012] Please - and referring to the second figure, one end of the shaft 12 is provided with a threaded portion 122, and the other end is provided with a flange 124. The flange 124 is symmetrically disposed with two protrusions 126. The spring 14 is a cylindrical compression spring that fits over the shaft 12. [] The follower 16 is a columnar body having a through hole 162 extending through the end face thereof. The through hole 162 has a diameter larger than the diameter of the shaft 12, and the follower 16 is fitted over the shaft 12. The follower 16 is provided with a cam surface 164 which includes two valleys 1642, two peaks 1644 which are symmetrically disposed, and a ramp 646 which is located between the valley 1 642 and the peak 1644. In addition, the follower 16 is provided with at least one rotation stop structure. In this embodiment, a rotation preventing groove 166 is formed on the outer circumference of the follower member 16, and the rotation preventing groove 166 can be opened after the cover of the mobile phone is opened relative to the body. Cooperating with the mobile phone body, and when the cover of the mobile phone is closed relative to the body, it does not cooperate with the body.

[0014] Please /it jfiL ββ » and refer to the third figure, the cam 18 is a columnar body, and a two-symmetric protrusion 180 is disposed outside, and a screw hole 182 ′ that cooperates with the threaded portion 122 of the shaft 12 is opened inside. The cam 18 is screwed to the shaft 12 by the screw hole 182. The cam surface 18 faces the end surface of the follower member 16 and is provided with a cam surface 184 that cooperates with the cam surface 164 of the follower member 16. The cam surface 184 includes two concave valleys 1842, two convex peaks 1844, and a concave valley 1842 and a convex peak. Slope 1846 〇[0015] When the hinge structure 10 is assembled, the spring 14 and the follower 16 are sequentially sleeved on the shaft 12 by the threaded portion 122 of the shaft 12, and then the cam 18 is rotated on the shaft 094116671. No. A0101 Page 5 of 21 1003384699-0 1357956 The threaded portion 122 of the replacement page 12 is amended on October 19, 100. [0016] When the hinge structure 10 is applied to a mobile phone, the shaft 12 and the cam 18 are respectively coupled to one of the mobile phone body or the cover. The body is provided with a locking structure, such as a convex portion, so that when the cover body is in an open state relative to the body, it engages with the rotation preventing groove 166 of the follower member 16. In this embodiment, the shaft 12 is connected to the body, and the cam 18 is connected to the cover body as an example to further illustrate the operation of the hinge structure 10. At this time, the spring 14 is abutted between the flange 124 of the shaft 12 and the follower 16.

[0017] In the initial state, referring to the first figure, the mobile phone body and the cover body are in a relatively closed state, and the cover body is locked on the body by a locking device, and the shaft 12 is protruded by the flange 124 of the flange 124. Cooperating with the body, the cam 18 is engaged with the cover body by the protrusion 180 thereof, and the spring 14 is in a deformed state, which itself accumulates a certain elastic potential energy, and the spring 14 has one end abutting the top flange 124 and the other end abutting the top follower 16 Under the action of the spring 14, the cam surface 164 of the follower 16 cooperates with the cam surface 184 of the cam 18. At this time, the convex portion of the mobile phone body is not engaged with the rotation preventing groove 166 of the follower 16. When the cover body is opened relative to the body, the lock of the locking device is released, and the follower 16 and the cam 18 are axially moved by the elastic potential energy of the spring 14 on the shaft 12, and the threaded portion 122 and the screw hole With the cooperation of 182, the cam 18 rotates relative to the shaft 12 while rotating, thereby driving the cover body to rotate, so that the cover body is opened relative to the body. Under the resistance of the spring 14, the follower 16 also rotates with the cam 18. That is, during the opening of the cover body relative to the body, the follower 16 and the cam 18 are not relatively rotated. [0018] When the cover body is closed relative to the body, the button disposed on the outer surface of the mobile phone is pressed to make the locking structure on the mobile phone body, that is, the convex portion card 094116671 Form No. A0101 Page 6 / 21 pages 1003384699- 0

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[0019] On October 19, 100, the rotation groove 166 of the moving member 16 is so that the follower (four) can only move axially on the shaft, and the material rod 12 and the body have no relative rotation. The length 'applies to the cover body to rotate the cam 18 relative to the shaft 12, and with the cooperation of the = portion 122 and the screw hole 182, the cam moves while moving the ejector follower 16 along the axis 12 to thereby compress the spring. 14, the cam surface 184 of the slider 8 slides along the cam surface 164 of the follower member 16 when the cam peak of the convex peak of the cam ^ stops, and the force is applied due to the spring force of the spring 14, the rebound length of the spring 14 is greater than that of the shaft螺 螺 ', 文》 P122 pitch, so that the cam 18 automatically slides relative to the cam surface 164 of the follower ^ into the valley 1642 of the follower 16 so that the cover body is opposite to the body from the (four) joint while the cover body is The locking device is re-locked to the body. Simultaneous cam

[0021] It can be seen that the number of elements of the chain structure 1〇 is small and due to the thread. The 卩 122 is engaged with the screw hole i82 to make the cover body less impacting force on the body. Further, by the follower member 16 engaging with the cam surface of the cam 18, semi-automatic closing can be achieved when the cover body is closed relative to the body. Referring to the fourth to sixth figures, the hinge structure 20 of the second preferred embodiment of the present invention includes a rod 22, a spring 24, a follower 26 and a block 28. The shaft 22 is provided with a threaded portion 222 at one end and a flange 224 at the other end. Two protrusions 226 are symmetrically disposed on the outer circumference of the flange 224. The spring 24 is attached to the shaft 22 by a cylindrical compression spring. The follower member 26 is a circular disk-shaped body, and a through hole 262 is defined in the middle so as to align the two spherical protrusions 264 on one surface of the shaft 22 on the shaft. In addition, the follower 26 can be provided with at least one rotation stop structure. In this embodiment, the rotation stop groove 266 is formed on the outer circumference of the follower member 26. The rotation stop groove 266 can be at 094116671. Form No. A0101, page 7 [0023] [0024] [0025] [0025] [0025] On October 19, flOO, the cover of the child's mobile phone was opened to the body of the mobile phone, and the cover of the mobile phone was When the body is closed relative to the body, it does not cooperate with the body. The block 28-column body is provided with two symmetrical protrusions 28'', and a screw hole 282 is formed inside to cooperate with the threaded portion 222. The block (4) decoupling hole 282 is screwed to the shaft 22. The block 28 is symmetrically formed with two arcuate grooves 284 corresponding to the surface of the follower 26, and the arcuate groove 284 has an arcuate cross section, and the height thereof is equivalent to the height of the spherical protrusion 264, which can accommodate the follower 26 Spherical protrusions 264. 4 When the hinge structure 20 is assembled, the spring 24 and the follower 26 are sequentially sleeved on the shaft 22, and then the block 28 is screwed onto the threaded portion 222 of the shaft 22.

When the hinge structure 20 is applied to a mobile phone, the shaft 22 and the block 28 are connected to one of the body of the mobile phone or the cover, respectively. In this embodiment, the shaft 22 is connected to the body, and the block 28 is connected to the cover body as an example to further illustrate the operation of the hinge structure 20. At this time, the spring 24 is abutted between the flange 224 of the shaft 22 and the follower 26. . The body is provided with a locking structure, such as a convex portion, which is engaged with the rotation preventing groove 266 of the follower 26. I In the initial state, please refer to the fourth figure, the mobile phone body and the cover body are in a relatively closed state, the cover body is locked on the body by a locking device, and the shaft 22 is supported by the protrusion 226 and the body of the flange 224. In cooperation, the block 28 is engaged with the cover body by the protrusion 280 thereof, and the spring 14 is in a deformed state, which itself accumulates a certain elastic potential energy, the spring 24 end abuts against the top flange 224, and the other end abuts the follower 26 Under the action of the spring 24, the spherical protrusion 264 of the follower 26 is received in the arcuate groove 284 of the block 28. At this time, the mobile phone book 094116671 Form No. A0101 8th/Total 2 page 1003384699- On October 19, 100, the correction of the replacement page body was not engaged in the rotation groove 266 of the follower 26. When the cover body is opened relative to the body, the lock of the locking device is released, and the follower 26 and the block 28 are axially moved by the elastic potential energy of the spring 24 on the shaft 22 to the 'line portion 222 and When the screw hole 282 is engaged, the block 28 is axially moved while rotating relative to the shaft 22, thereby driving the cover body to rotate, so that the cover body is opened relative to the body. Under the resistance of the spring 14, the follower 26 is also accompanied by the card. Block 28 - the same rotation, that is, the follower 26 and the block 28 are not relatively rotated during the opening of the cover relative to the body. When the cover body is closed relative to the body, pressing a button disposed on the outer surface of the mobile phone body causes the convex portion on the body of the mobile phone to engage with the rotation preventing groove 266 of the follower 26, so that the follower 26 can only be used on the shaft 22 The upper axis moves, and the force is applied to the cover body to rotate the block 28 relative to the shaft 22, and the pusher follower moves axially along the shaft 22 while the block 28 rotates under the cooperation of the threaded portion 222 and the screw hole 282. 26 thereby compressing the spring 24, while the spherical protrusion 264 of the follower 26 slides out of the arcuate groove 284 of the block 28, sliding on the end surface of the follower 26, stopping the force application, and the cover body will be opposite to the body Staying at any position on the end face 'continues to apply force to the cover body' when another spherical groove 284 that slides into the block 28 again with the spherical protrusion of the animal acts due to the elastic force of the spring 24, and the rebound length of the spring 24 is greater than The pitch of the threaded portion 122 of the shaft 12, so that the spherical protrusion 264 of the follower 26 will automatically slide along the curved surface of the arcuate groove (10) to the bottom of the arc-shaped groove 284 of the lion, thereby making the cover The body is automatically closed relative to the body, and the cover body is re-locked to the body by the locking device. It can be seen that the components of the money structure are less, and the (four) ribs 222 are engaged with the screw holes 282 to make the cover body less impacting force on the body. Another form number A0101, page 9 / 21 pages 1003384699-0 1357956 Correction of the replacement of 'the spherical protrusion 264 of the follower 26 and the curved groove 284 of the block 28' can be applied to the cover body on October 19, 100 Semi-automatic closure is achieved when the body is closed. [0028] Referring to the seventh to ninth drawings, the hinge structure 30' of the third preferred embodiment of the present invention includes a shaft 22, a spring 24, a follower 36, a ball 40, and a slider 28° follow-up The member 36 is a circular disc-shaped body, and a through hole 362 ′ is defined in the middle so as to be sleeved on the shaft 22. A surface is symmetrically opened with two arcuate grooves 364, and the balls 40 and the arcuate grooves 364 and the card of the follower 36 respectively. The arcuate slots 284 of block 28 cooperate. In addition, the follower 36 can be provided with at least one anti-rotation structure, such as a rotation stop groove 366 formed on the outer circumference of the follower 36, which can be opened after the cover of the mobile phone is opened relative to the body. The phone body cooperates with the body and does not cooperate with the body when the cover of the mobile phone is closed relative to the body. [0029] The movement process of the hinge structure 30 of the present embodiment applied to the mobile phone is the same as that of the hinge structure 20, except that the spherical protrusion 264 of the follower 26 of the hinge structure 2 is replaced with a ball 4〇. Therefore, when the cover body is closed, the sliding friction generated by the relative rotation of the follower 26 and the block 28 is converted into rolling friction between the ball 40 and the follower 36 and the block 28, thereby improving the follower 36 4 and the block. The service life of 28, thereby increasing the service life of the hinge structure 30 [0030] during the opening process, due to the cooperation of the threaded portions 122, 222 with the screw holes 182 of the cam 18 or the screw holes 282 of the block 28, the spring 14 The reset of 24 has a blocking effect, so that the opening process is relatively gentle, so that the cover body can be prevented from causing excessive impact on the body. [0031] It can be understood that the flange 124 of the shaft 12 can also be replaced by other fixing parts, such as 094116671 Form No. A0101 Page 10 / Total 21 Page 1003384699-0 1357956 October 19, 100 Nuclear Replacement Page Placed The deforming shaft portion on the shaft 12; in addition, the flat portion protrusion 180 of the cam 18 may be replaced by other anti-rotation structures, such as grooves provided on the outer circumference of the cam 18 or the cam 18 may be arranged in an irregular shape. The spring 14 can also be replaced by other resilient elements such as elastic sponges. [0032] The number of components of the hinge structure is small, and since the threaded portion cooperates with the screw hole, the impact force of the cover body on the body is small. [0033] It can be understood that the two ends of the spring of the hinge structure of the embodiment can be fixed to the flange and the follower, and can rotate therein. In this way, when the angle at which the cover body is opened is too large, the distance between the flange and the follower is increased when the over-rotating shaft is rotated in the opposite direction to the closing direction of the follower, thereby expanding the spring, so that the cover body can be Under the action of the spring's restoring force, it will return to the predetermined position by itself. The flange of the shaft can also be other fixing portions, such as a deformed shaft portion. [0034] In summary, the present invention complies with the requirements of the invention patent, and submits a patent application according to law. The above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art will be included in the following claims.

BRIEF DESCRIPTION OF THE DRAWINGS [0035] The first drawing is an assembled perspective view of a first embodiment of a hinge structure of the present invention; [0036] The second drawing is an exploded perspective view of a first embodiment of the hinge structure of the present invention; [0037] The third drawing is an exploded perspective view of the first embodiment of the hinge structure of the present invention in another direction; [0038] The fourth drawing is an exploded view of the second embodiment of the hinge structure of the present invention; 094116671 Form No. A0101 Page 11 of 21 Page 1003384699-0 1357956 October 19th, 100th Nuclear Replacement Page [0039] [0044] [0044] [0046] [0046] [0049] [0049] [0050] [0053] FIG. 5 is an exploded perspective view showing a second embodiment of the hinge structure of the present invention; 7 is an exploded view of the third embodiment of the hinge structure of the present invention; the eighth figure is an exploded perspective view of the third embodiment of the hinge structure of the present invention; and the ninth embodiment is the third embodiment of the hinge structure of the present invention. A three-dimensional exploded view. [Main component symbol description] Hinge structure: 10, 20, 30 Shaft: 12, 22 Threaded part: 122, 222 Flange: 124 Bump: 126 Spring: 14 Follower: 16 Through hole: 162, 262, 362 Cam surface: 164 valley: 1642 peak: 1644

094116671 Form No. A0101 Page 12 of 21 1003384699-0 [0054] 1357956 100. October 19 Amendment Replacement Page [0055] Slotting groove: 166, 266, 366 [0056] Cam: 18 [0057] Protrusions: 180, 280 [0058] Screw holes: 182, 282 [0059] Cam surface: 184 [0060] Valley: 1842 [0061] Peak: 1844

[0062] Spherical protrusion: 264 [0063] Block: 28 [0064] Curved groove: 284, 364 [0065] Ball: 40

094116671 Form No. A0101 Page 13 of 21 1003384699-0

Claims (1)

1357956 ____, October 19, 100 revised replacement page VII, the scope of application for patents: 1. A hinge structure, comprising: a shaft with a threaded portion; a follower, a cylindrical body, one end of which is set a cam surface; a cam is a columnar body having a screw hole formed therein, the screw hole is screwed to the threaded portion of the shaft, and a cam surface is provided on one end surface thereof; an elastic element provides a follow-up The cam surface of the piece cooperates with the cam surface of the cam. When the elastic potential energy of the elastic element is released, the push-up follower rotates with the cam together with the shaft, and the cam and the follower have no relative rotation. 2. The hinge structure of claim 1, wherein the shaft is provided with a fixing portion at one end. 3. The hinge structure of claim 2, wherein the fixing portion is provided on a flange at one end of the shaft, and the flange is provided with at least one protrusion on the outer circumference. 4. The hinge structure of claim 2, wherein the elastic member has one end that abuts the fixed portion and the other end that abuts the follower. 5. The hinge structure of claim 1, wherein the elastic member is a cylindrical compression spring. 6. The hinge structure of claim 1, wherein the outer periphery of the follower defines a stop structure. 7. The hinge structure of claim 6, wherein the anti-rotation structure is a stop groove. 094116671 Form No. A0101 Page 14 of 21 1003384699-0