JP6228156B2 - Two-rotation shaft device for flip electronic products - Google Patents

Description

The present invention, in particular by providing a rotating shaft apparatus between the base and the top cover of the flip electronic product, 2 the axis of rotation of the flip electronic products of the rotary shaft structure to increase turning against the electronic product lid on base over scan Relates to the device .

Current flip-type electronic products such as notebook computers and smartphones are composed of a combination of a base and an upper lid. Among them, the top lid of some flip-type electronic products can be lifted to the bottom of the base, and the flip-type electronic product can be used as a tablet PC or a folding tablet PC combined with two touch screens at 180 degrees It can also be opened and used. Generally, a flip electronic product used for a tablet PC achieves a flip operation by a two-axis rotating shaft device. This type of rotary shaft device shaft bushing, the first rotating shaft and the second rotation axis pivoted, by connecting electronic products upper lid and the base of the first rotary shaft and second rotary shaft, respectively, the top cover base The top surface can be placed over the bottom surface or the top cover can be placed over the base surface from the bottom surface of the base.

The rotation system related to the rotation of the first rotating shaft and the shaft bushing of the rotating shaft device according to a known technique is classified into two types: a screw type and a continuous type. Among them, the screw-type rotary shaft device is mainly provided with a spiral guide groove on the first rotary shaft and the second rotary shaft, and by providing a sliding piece between the first rotary shaft and the second rotary shaft. The protrusions at both ends of the sliding piece are respectively placed in the guide grooves. On the other hand, the rotating shaft apparatus of the communicating桿式is mainly pivoted a connecting rod to a side surface of the first rotary shaft and second rotary shaft. However, even if it is a screw-type rotary shaft device or a continuous-type rotary shaft device, the designer overlooks a very important problem. That is, the rotating shaft device is provided on both sides between the upper lid and the base of the electronic product, and the two rotating shaft devices are not provided with an interlocking mechanism. Since the rigidity of the upper lid is also insufficient, when the user lifts the upper lid, the force received by the two rotary shaft devices cannot be balanced. For this reason, in the screw-type rotary shaft device, the rotation angle differs due to the imbalance of the forces received by the two rotary shaft devices, and the difference in angle formed between the both sides of the upper lid and the base is large, which is easily noticed by the user. It is. Furthermore, since the first rotating shaft, the second rotating shaft, and the sliding piece operate simultaneously, if the rotation angle of the two-rotating shaft device is different, it cannot be smoothly lifted, and the rotating shaft device is greatly worn. Thus, the service life is shortened.

The main purpose of the present invention utilizes a helical guide system, and about the axis of rotation of the first rotation axis of the rotating shaft apparatus, the rotation shaft bushing of the shaft about the second rotation axis, but acts alternately by rotating Te, rotation angle and the axial bushing of the first rotary shaft to restrict the rotation angle of the axis of the second rotary shaft, is operating smoothly the rotary shaft device, Ru good excessive wear together avoid shortening the life of the rotary shaft system of the electronic product sides, and excessive rotation angle difference to the two rotation axes, the two axes bushings prevent rotation angular difference around the axis of the second rotary shaft, a fixed Maintaining the range, does not cause excessive angle difference between both sides of the top lid of the electronic product and the base, and when the top lid and the base of the electronic product are deployed and used, the surface of the top lid and the base becomes parallel, when the upper lid is turned to the bottom surface of the base, the lid and base side surface protrudes It becomes Ku flush.

It is another object of the present invention, by utilizing the communication稈組, the rotation angle of the first rotary shaft, the shaft bushing to further limit the rotation angle of the axis of the second rotating shaft, the rotating shaft apparatus In addition to improving the accuracy , an excessive angular difference between both sides of the upper lid of the electronic product and the base is prevented.

In order to achieve the above object, a two-rotation shaft device of a flip electronic product according to the present invention includes a shaft bushing, a rotation shaft set, and a sliding block. The rotary shaft set includes a first rotary shaft and a second rotary shaft, and is provided with a spiral holding groove and a spiral limiting groove on each side of the first rotary shaft and the second rotary shaft, and A first side wall and a second side wall are formed on both sides of the restriction groove, the sliding block is attached between the first rotating shaft and the second rotating shaft, and the first protrusion and the second protrusion are formed at both ends of the sliding block. The first protrusion and the second protrusion are positioned inside the sliding block and the restriction groove, respectively, and the width of the first and second side walls of the restriction groove is wider than the width of the second protrusion. When the two protrusions are locked to the first side wall, a moving space is formed in the interval between the second protrusion and the second side wall, and when the external force is applied and a pivoting force is applied to the first rotation shaft, The first rotation shaft pivots, and the first guide portion pushes the first protrusion, thereby moving the sliding block toward the second side wall, and moving the second protrusion to the second side. When locked, the second protrusion forms a limiting space between the first side wall, by applying an external force, when given the rotational force to the first rotary shaft, the first rotary shaft is its axis When the rotational force is further applied to the first rotating shaft, the first rotating shaft is integrated with the sliding block and the shaft bushing and rotates around the second rotating shaft. 2 Protrusions are brought closer to the first side wall.

A linkage set is provided on one side of the rotary shaft set of the two-rotating shaft device of the flip electronic product, and the linkage set includes a first rotary tool, a second rotary tool, and a limiting tool. The first rotating tool is always connected to the end of the first shaft portion of the rotating shaft set, and the surface of the first rotating tool is provided with a first limiting column protruding from one side of the first connecting hole, and the second The rotating tool is always connected to the end of the second shaft portion of the rotating shaft set, and the surface of the second rotating tool is provided with a second restricting column on one side of the second connecting hole, and at both ends of the surface of the limiting column, respectively. A first restriction hole and a second restriction hole are provided, the first restriction column and the second restriction column are located inside the first restriction hole and the second restriction hole, respectively, and the first restriction hole is close to the second restriction hole. The first locking end is formed at the end, the second locking end is formed at the far end of the second limiting hole, and the distance between the first locking end and the second locking end is the first limiting column Greater than outer diameter. When the second protrusion is locked to the first side wall, the first restriction column of the linkage set is locked to the second locking end, so that when external force is applied to the first rotation shaft, One rotation axis pivots, the first rotating tool is rotated, the distance between the first limiting column and the second limiting column is reduced, and the first limiting column is moved toward the first locking end. To do. When the second protrusion is locked to the second side wall, the first restriction column of the linkage set is locked to the first locking end, and when the external force is applied to the first rotating shaft and the pivoting power is applied, the first rotation is performed. The shaft is integrated with the sliding block and the shaft bushing , rotates around the axis of the second rotation shaft , increases the distance between the first limiting column and the second limiting column, and makes the first limiting column the second It is moved toward the locking end.

It is a top view of the rotating shaft device of the present invention. It is a three-dimensional external view of the rotating shaft device of the present invention. It is a side view of the rotating shaft apparatus of this invention. It is a three-dimensional exploded view of the rotating shaft device of the present invention. It is a three-dimensional sectional view of the sliding block of the present invention. It is a figure which shows operation | movement of the rotating shaft apparatus of this invention. It is a figure which shows the action | operation of the rotating shaft set and sliding block of this invention (the 1). It is a figure which shows the action | operation of the rotating shaft set and sliding block of this invention (the 2). It is a figure which shows rotation operation | movement of the electronic product to which this invention is applied. It is a figure which shows the action | operation of a rotating shaft set and linkage of this invention (the 1). It is a figure which shows the action | operation of a rotating shaft set and linkage of this invention (the 2).

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Please refer to FIGS. In the present invention, rotary shaft devices 10 and 10 'are provided on both sides between the base 91 and the upper lid 92 of the electronic product 9, respectively. , And the ream set 4. Of which

Axis bushing 1 has a base 11, one side of the base part 11 upwardly allowed extending the first pressing portion 12 is refracted into the other side, the first rotary shaft space between the first pressing portion 12 and the base 11 13 is formed, at one side of the base 11 downward allowed extending the second pressing portion 15 is refracted at the other side, to form a second rotary shaft space 16 between the second pressing portion 15 and the base 11. Furthermore, a first notch 14 is formed between the end of the first pressing part 12 and the base 11, and a second notch 17 is formed between the end of the second pressing part 15 and the base 11 . The first notch 14 and the second notch 17 are located on different side surfaces of the base 11.

The rotary shaft set 2 includes a first rotary shaft 21, a second rotary shaft 22, a first fixture 23, a second fixture 24, a third fixture 25, and a fixed rod 26. A first shaft portion 211 and a first guide portion 212 are formed on both sides of the first rotation shaft 21 . The spiral pressing groove 213 recessed into the surface of the first guide portion 212, and allowed to pivotally the first shaft portion 211 to the first rotary shaft space 13 of the shaft bushing 1. The first guide portion 212 to protrude from one side of the shaft bushing 1. A second shaft portion 221 and a second guide portion 222 are formed on both sides of the second rotation shaft 22. A spiral limiting groove 223 is formed on the surface of the second guide part 222, and a first side wall 224 and a second side wall 225 are formed on both sides of the limiting groove 223 . The retainer groove 213 and restriction groove 223 and disposed opposite, and allowed to pivotally the second shaft portion 221 to the second rotary shaft space 16 of the shaft bushing 1. Similar to the first guide 212, the second guide 222 protrudes from one side of the shaft bushing 1 . Furthermore, the first fastener 23, the second fastener 24 have provided on both sides of the shaft bushings 1 and the first fastener 23 to both ends of the second fastener 24, each of the first mounting hole (231 241) and the second mounting holes (232, 242), the first mounting holes (231, 241) and the second mounting holes (232, 242) are respectively connected to the first rotating shaft space 13 of the shaft bushing 1 and the second mounting holes (232, 242). It is provided so as to face the two rotation shaft spaces 16, and both sides of the first shaft portion 211 of the first rotation shaft 21 are located in the first mounting holes (231, 241), and the second shaft portion 221 of the second rotation shaft 22. Are located in the second mounting holes (232, 242). The 3rd fixing tool 25 is provided in the opposite side to the 1st fixing tool 23 with respect to the 2nd fixing tool 24 , and the 1st mounting hole 251 and the 2nd mounting hole 252 are each provided in the both ends of the 3rd fixing tool 25. The end of the first guide portion 212 of the first rotating shaft 21 and the end of the second guide portion 222 of the second rotating shaft 22 are respectively provided at the first mounting hole 251 and the second mounting hole 252 of the third fixture 25. Located in. Further, both ends of the fixed rod 26, connected between the ends of the second fastener 24 and the third fixing member 25, respectively.

The sliding block 3 is provided between the second guide part 222 and the first guide part 212 of the rotary shaft set 2, and the sliding block 3 has a main body 31, and the main body 31 has guide holes 311 that penetrate the surfaces on both sides thereof. the setting only, the fixation rod 26 of the rotary shaft assembly 2 is positioned in the guide hole 311. The first restricting groove 32 and the second restricting groove 33 are respectively provided on the surfaces of the upper and lower ends of the main body 31 , and the first protrusion 34 is provided in the first restricting groove 32. Located in the holding groove 213 of the rotating shaft set 2, the second protruding portion 35 is provided so as to protrude inside the second limiting groove 33, and the second protruding portion 35 is positioned in the limiting groove 223 of the rotating shaft set 2.

The linkage group 4 includes a first rotating tool 41, a second rotating tool 42, and a limiting tool 43. A first connection hole 411 provided at the center position of the surface of the first rotating member 41, the first connection hole 411 are always connected to the end of the first shaft portion 211 of the rotary shaft assembly 2, and the first rotating member 41 The first restricting column 412 is provided on one side of the first connecting hole 411 on the surface of the first connecting hole 411 . Only set the second connection hole 421 at the center of the second rotary member 42 surface, the second connection hole 421 are always connected to the end of the second shaft portion 221 of the rotary shaft assembly 2, and the second rotating member 42 A second restriction column 422 is provided on one side of the second connection hole 421 so as to protrude from the surface. Both ends of the restriction device 4 3 includes a first attachment hole 431 of the second mounting holes 432 provided in each of the first restriction column 412 second limiting pillar 422, a first mounting hole 431 respectively in the second mounting holes 432 To position. The first mounting hole 431 of the first locking end 4311 formed at an end portion near the position of the second mounting holes 432, to form a second locking end 4312 to the second mounting holes 43 2 or et away position. In addition, the distance between the first locking end 4311 and the second locking end 4312 is larger than the outer diameter of the first limiting column 412.

Continuing to refer to FIG. 1 and FIGS. When the user turns the upper lid 92 away from the base 91, a force that rotates the shaft bushing 1 about the second rotation shaft 22 is caused by applying a rotation force to the first rotation shaft 21. That is, as shown in FIG. 7, when the second projecting portion 35 is engaged with the second side wall 225, the second protrusion 35 forms a limiting space 227 between the first side wall 224, Fig. as shown in 6, the addition of rotational force, such as the arrow to the first rotating shaft 21 by an external force, the second protrusion 35 is not engaged with the second side wall 225 Runode, pressing the groove of the first rotary shaft 21 213, in the direction indicated by broken line arrows, that can not be able to push the first protrusion 34. By continuing to apply the external force to rotate the first rotating shaft 21 , the shaft bushing 1 and the sliding block 3 assembled to the shaft bushing 1 via the first rotating shaft 21 and the second rotating shaft 22 are first moved. The first rotating shaft 21 and the second rotating shaft 22 are rotated integrally with the first rotating shaft 21 . Because, since the limited space 227 is formed on the right side of the second protrusion 35 (see FIG. 7), the second protrusion 35 can move to the right. The sliding block 3 can rotate around the second rotation shaft 22 . The second protrusion 35 with the rotation along the limiting groove 223 at the same time (in FIG. 7 in the right direction) to move, and engaging the first side wall 224, around the sliding block 3 of the second rotating shaft 22 The rotation stops. By the second protrusion 35 is engaged with the first side wall 224, as shown in FIG. 8, the moving space 226 is formed between the second protrusion 35 to the spacing between the second side wall 225. At this time, the sliding block 3 and the shaft bushing 1 stop rotating around the second rotation shaft 22 in response to the locking of the second protrusion 35 to the first side wall 224 . Subsequently , when an external force applies a rotating force to the first rotating shaft 21, the first protrusion 34 is pushed leftward in FIG. 8 by the pressing groove 213 of the first rotating shaft 21, and a moving space 226 is formed in this direction. Therefore , the sliding block 3 can be moved in the direction of the second side wall 225, and is locked to the second side wall 225. The second protrusion 35 is connected to the first side wall 224 as shown in FIG. form a limited space 227 between. By repeating the above operations, the first rotary shaft 21 causes the rotation motion of rotating the shaft bushing 1 and the sliding block 3 about the second rotary shaft 22 is alternately rather work. By limiting the rotation of the rotation angle of the rotary angle and the second rotation axis 22 of the shaft bushing 1 and the sliding block 3 of the first rotating shaft 21, electronic products 9 on both sides of the rotary shaft device first rotation of the two in 10 error and two axes bushings 1 of the rotating angle of the shaft 21 is an error of about a rotational angle of the second rotary shaft 22 is maintained in a certain range, an excessive error angle between the upper cover 92 on both sides and the base 91 In addition, the rotary shaft device 10 is smoothly rotated and unnecessary wear due to an excessive error can be prevented. Furthermore, as shown in FIG. 9, after the first rotation shaft 21 is rotation by a fixed angle, both axial bushing 1 and the sliding block 3 is rotated at a predetermined angle about the second rotating shaft 22 is operated alternately , when it is parallel to turned over the top cover 92 and base 91, the shaft bushing 1 also becomes a parallel state and the surface of the upper cover 92 and the base 91, the user may be used pasted electronic products 9 on the surface of the desk can, lid 92 or base 91 does not generate the happening of not affixed to the surface of the desk. Further, when the upper lid 92 is moved to the bottom surface position of the base 91, the shaft bushing 1, the upper lid 92, and the base 91 are in a vertical state, the edges of the upper lid 92 and the base 91 are in a straight line , and no side protrusion is seen. .

Continuing to refer to FIG. 1 and FIGS. When the first rotary shaft 21 is rotating, by first rotating member 41 rotating in conjunction with the distance gradually increases between the first limiting pillar 412 and the second restriction pillar 422, a first As the rotating shaft 21 rotates around the second rotating shaft 22 , the distance between the first limiting column 412 and the second limiting column 422 gradually decreases, and the second protrusion 35 engages with the second side wall 225. When stopped, as shown in FIG. 7, the second projecting portion 35 forms a restricting space 227 between the first side wall 224 and the first restricting column 412 of the linkage group 4 is the first locking end. 4311 is engaged. Rotational force from the external force that is applied to the first rotating shaft 21, since the second protrusion 35 is engaged with the second side wall 225, holding grooves 213 of the first rotary shaft 21 pushes the first protrusion 34 The first limiting column 412 is locked by the first locking end 4311, cannot approach the second limiting column 422, the first rotating shaft 21 cannot rotate, and the first rotating shaft 21 by, by rotating the shaft bushing 1 and the sliding block 3 around the axis of the second rotating shaft 22, Chikayoseru the second protrusion 35 in the first side wall 224. Further, the first rotating shaft 21 is rotated about the axis of the second rotating shaft 22 in conjunction with the first rotating member 41 increases the first limit pillar 412 the distance between the second limiting pillar 422, the At the same time the first limiting post 412 Ru moved to the second locking end 4312, is engaged with the second locking end 4312. On the other hand, at the same time when the second protrusion 35 is Ru is engaging a first side wall 224, even if the first limit pillar 412 is engaged with the second locking end 4312, the first rotary shaft 21 continues sliding block 3 and the shaft Rukoto rotated about the second rotation axis 22 a bushing 1 together can not. Therefore, by the rotational force from the external force that is applied to the first rotating shaft 21, the first rotary shaft 21 is rotating, pressing grooves 213 of the first rotary shaft 21 pushes the first protrusion 34, the sliding block 3 When Ru is engaged with the second side wall 225 moved in the direction of the second side wall 225, the second protrusion 35 forms a limiting space 227 between the first side wall 224, the first rotary shaft 21 is first by Rukoto allowed in conjunction with one rotation tool 41 rotating, the first limiting pillar 412 the distance between the second limiting pillar 422 gradually increases, the first limiting pillar 412 in the first locking end 4311 locking Ru allowed. By repeating the above-described operation, the first rotary shaft 21 or by rotating, operation for rotating the shaft bushing 1 and the sliding block 3 around the axis of the second rotating shaft 22 is actuated alternately. By the present invention to provide a communication桿組4, even if an error has occurred by if pressing wear grooves 213 or restriction groove 223, times of communicating桿組4 vamp first rotary shaft 21 rotation angle and the shaft bushing 1 And the rotation angle of the sliding block 3 around the second rotation shaft 22 can be accurately limited. In the rotation shaft devices 10 on both sides of the electronic product 9 , the pivot angle of the two first rotation shafts 21 can be reduced. error and two axes bushings 1 maintains an error of about a rotational angle of the second rotation shaft 22 within a certain range, Ru can proof Gukoto excessive angular error between the two sides and the base 91 of the upper cover 92.

10, 10 'Rotating shaft device 1 Shaft bushing 11 Base 12 First pressing portion 13 First rotating shaft space 14 First notch portion 15 Second pressing portion 16 Second rotating shaft space 17 Second notch portion 2 Rotating shaft assembly 21 the first rotary shaft 211 first shaft portion 212 first guide portion 213 holding groove 22 second rotation shaft 221 a second shaft portion 222 the second guide portion 223 limits the groove 224 first sidewall 225 second sidewall 226 moves air between 227 limit Space 23 First fixtures 231, 241, 251 First attachment holes 232, 242, 252 Second attachment holes 24 Second fixture 25 Third fixture 26 Fixing rod 3 Sliding block 31 Main body 311 Guide hole 32 First restriction Groove 33 Second Restriction Groove 34 First Projection 35 Second Projection 4 Continuous Assembly 41 First Rotating Tool 411 First Connection Hole 412 First Restriction Column 42 Second Rotation Tool 421 Second Connection Hole 422 Second Restriction Column 43 Kirigu 431 first mounting hole 4311 first engagement end 4312 second engagement end 432 second mounting holes 9 electronics 91 base 92 upper lid

Claims (4)

A shaft bushing (1), a rotating shaft set (2), and a sliding block (3) are provided, and includes a fixed base (91) and an upper lid (92) that is lifted by an external force with respect to the base (91). A two-rotating shaft device of a flip-type electronic product (9),
The rotating shaft set (2) includes a first rotating shaft (21) attached to the upper lid (92) of the electronic product and a second rotating shaft (22) attached to the base (91) of the electronic product. A first shaft portion (211) and a first guide portion (212) are formed on both sides of the first rotation shaft (21), and a helical pressing groove (on the surface of the first guide portion (212)) 213) is recessed, the first shaft portion (211) is pivotally attached to the shaft bushing (1), and the first guide portion (212) is projected from one side of the shaft bushing (1). A second shaft portion (221) and a second guide portion (222) are formed on both sides of the second rotation shaft (22), and a helical restriction groove (223) is formed on the surface of the second guide portion (222). And a first side wall (224) and a second side wall (225) on both sides of the restriction groove (223). And the second shaft portion (221) is pivotally attached to the shaft bushing (1), and the second guide portion (222) is connected to the first guide portion (212) of the shaft bushing (1). Protruding from the same side,
The sliding block (3) is located between the first guide part (212) and the second guide part (222) of the rotating shaft set (2), and the sliding block (3) is a main body. (31), and a first protrusion (34) and a second protrusion (35) are respectively provided on the surfaces of the upper and lower ends of the main body (31), and the first protrusion (34) is rotated. Located in the holding groove (213) of the shaft set (2), the second protrusion (35) is located in the limiting groove (223) of the rotating shaft set (2), and the first side wall When the width between (224) and the second side wall (225) is larger than the width of the second protrusion (35), the second protrusion (35) is locked to the first side wall (224). A moving space (226) is formed between the second protrusion (35) and the second side wall (225), and the second protrusion When 35) is engaged with the second side wall (225), said second limiting space between the projections (35) first side wall (224) (227) is formed,
When a rotational force is applied to the first rotation shaft (21) by an external force, the first rotation shaft (21) rotates, and the first protrusion (34) is pushed in by the pressing groove (213). Until the two projections (35) engage with the second side wall (225), the sliding block (3) is moved in the direction of the second side wall (225);
In a state where the second protrusion (35) is locked to the second side wall (225) and the first rotation shaft (21) cannot rotate about the axis, the first rotation shaft ( When a rotational force is further applied to 21), the first rotating shaft (21) is integrated with the sliding block (3) and the shaft bushing (1) around the second rotating shaft (22). Until the second protrusion (35) engages with the first side wall (224) as the slide block (3) rotates about the axis of the second rotation shaft (22). A two-rotating shaft apparatus for flip-type electronic products, wherein the sliding block (3) is configured to move in the direction of the first side wall (224).   The rotating shaft set (2) further includes a first fixing tool (23), a second fixing tool (24), a third fixing tool (25), and a fixing rod (26), and the first fixing tool (23). ) And the second fixture (24) on both sides of the shaft bushing (1), and the third fixture (25) with respect to the second fixture (24), the first fixture (23). The both ends of the fixing rod (26) are respectively connected between both ends of the second fixing tool (24) and the third fixing tool (25), and the sliding block (3) The main body (31) is provided with guide holes (311) penetrating the surfaces on both sides of the main body (31), and the fixing rod (26) is located in the guide hole (311). 2. A two-rotating shaft device for flip-type electronic products according to item 1. An upper cover including a shaft bushing (1), a rotating shaft group (2), a sliding block (3), and a linkage group (4), which is lifted by an external force with respect to the fixed base (91) and the base (91) (2) a two-rotating shaft device of a flip electronic product (9),
The rotating shaft set (2) includes a first rotating shaft (21) attached to the upper lid (92) of the electronic product and a second rotating shaft (22) attached to the base (91) of the electronic product. A first shaft portion (211) and a first guide portion (212) are formed on both sides of the first rotation shaft (21), and a helical pressing groove (on the surface of the first guide portion (212)) 213) is recessed, the first shaft portion (211) is pivotally attached to the shaft bushing (1), and the first guide portion (212) is projected from one side of the shaft bushing (1). A second shaft portion (221) and a second guide portion (222) are formed on both sides of the second rotation shaft (22), and a helical restriction groove (223) is formed on the surface of the second guide portion (222). And a first side wall (224) and a second side wall (225) on both sides of the restriction groove (223). And the second shaft portion (221) is pivotally attached to the shaft bushing (1), and the second guide portion (222) is connected to the first guide portion (212) of the shaft bushing (1). Protruding from the same side,
The sliding block (3) is located between the first guide part (212) and the second guide part (222) of the rotating shaft set (2), and the sliding block (3) is a main body. (31), and a first protrusion (34) and a second protrusion (35) are respectively provided on the surfaces of the upper and lower ends of the main body (31), and the first protrusion (34) is rotated. Located in the holding groove (213) of the shaft set (2), the second protrusion (35) is located in the limiting groove (223) of the rotating shaft set (2), and the first side wall The width between (224) and the second side wall (225) is larger than the width of the second protrusion (35);
The linkage group (4) includes a first rotating tool (41), a second rotating tool (42), and a restricting tool (43), and a first connection is made at the center position of the surface of the first rotating tool (41). A hole (411) is provided, the first connection hole (411) is always connected to the end of the first shaft portion (211) of the rotating shaft set (2), and the surface of the first rotating tool (41) Is provided with a first restriction column (412) projecting from one side of the first connection hole (411), and a second connection hole (421) is provided at the center of the surface of the second rotating tool (42). The second connecting hole (421) is always connected to the end of the second shaft portion (221) of the rotating shaft set (2), and the second rotating tool (42) has a second surface on the surface thereof. A second restricting column (422) is provided on one side of the connection hole (421), and both ends of the restrictor (43) are respectively connected to a first attaching hole (431) and a second attaching hole ( 32), and the first limiting column (412) and the second limiting column (422) are positioned in the first mounting hole (431) and the second mounting hole (432), respectively, and the first mounting hole (431) forms a first locking end (4311) at a position near the end of the second mounting hole (432), and a second locking end (4312) at a position away from the second mounting hole (432). ) And the distance between the first locking end (4311) and the second locking end (4312) is larger than the outer diameter of the first limiting column (412),
When the second protrusion (35) is locked to the first side wall (224), a moving space (226) is formed between the second protrusion (35) and the second side wall (225). When the first limiting column (412) of the linkage group (4) is locked to the second locking end (4312) and a rotational force is applied to the first rotating shaft (21) by an external force, The first rotation shaft (21) rotates, the first protrusion (34) is pushed in by the pressing groove (213) of the first guide part (212), and the second protrusion (35) is The sliding block (3) is moved in the direction of the second side wall (225) until it is locked to the second side wall (225), and at the same time, the first rotating shaft (21) is moved to the first rotating tool (41). ) In conjunction with each other so that the distance between the first limiting column (412) and the second limiting column (422) is Then, the first restricting column (412) is moved to the first locking end (4311), the second protrusion (35) is locked to the second side wall (225), and the second protrusion A portion (35) forms a restriction space (227) between the first side wall (224) and the first restriction pillar (412) of the linkage group (4) is connected to the first locking end ( 4311),
In a state where the second protrusion (35) is locked to the second side wall (225) and the first rotation shaft (21) cannot rotate about the axis, the first rotation shaft ( When a rotational force is further applied to 21), the first rotating shaft (21) is integrated with the sliding block (3) and the shaft bushing (1) around the second rotating shaft (22). Until the second protrusion (35) engages with the first side wall (224) as the slide block (3) rotates about the axis of the second rotation shaft (22). And moving to form a moving space (226) between the second protrusion (35) and the second side wall (225),
The first rotating shaft (21) interlocks the first rotating tool (41) to rotate around the second rotating shaft (22), and the first limiting column (412) and the second limiting column are rotated. The two-rotating shaft device of the flip type electronic product is characterized in that the first limiting column (412) is moved to the second locking end (4312) by increasing the distance to the (422).   The rotating shaft set (2) further includes a first fixing tool (23), a second fixing tool (24), a third fixing tool (25), and a fixing rod (26), and the first fixing tool (23). ) And the second fixture (24) on both sides of the shaft bushing (1), and the third fixture (25) with respect to the second fixture (24), the first fixture (23). The both ends of the fixing rod (26) are respectively connected between both ends of the second fixing tool (24) and the third fixing tool (25), and the sliding block (3) The main body (31) is provided with guide holes (311) penetrating the surfaces on both sides of the main body (31), and the fixing rod (26) is located in the guide hole (311). 3. A two-rotation shaft device for flip-type electronic products according to item 3.