CN216691846U - Hinge and device using same - Google Patents

Abstract

The utility model discloses a hinge and equipment applying the hinge, which comprises a shaft assembly, a first hinge, a second hinge, a first assembly and a second assembly, wherein the shaft assembly comprises a first shaft and a second shaft which are arranged in parallel at intervals; the first hinge is arranged on the first shaft, the first hinge can rotate in a first angle relative to the first shaft, the second hinge is arranged on the second shaft, and the second hinge can rotate in a second angle relative to the second shaft; the first assembly is arranged on the first shaft, the second assembly is arranged on the second shaft, the first assembly is in elastic jacking contact with the first hinge, the second assembly is in elastic jacking contact with the second hinge, and the friction force between the first assembly and the first hinge is different from the friction force between the second assembly and the second hinge. The hinge can be fixed at least two angle positions when in use, enriches the diversity of angle adjustment and is convenient to use.

Description

Hinge and device using same

Technical Field

The utility model relates to the technical field of rotary connection, in particular to a hinge and equipment applying the hinge.

Background

Along with the continuous promotion of people's standard of living, electronic equipment such as panel computer, notebook also more and more popularize, take the panel computer as an example, in the correlation technique, in order to make things convenient for the input of panel computer, the consumer is many when using the panel computer to be provided with the keyboard, in order to realize the folding of keyboard and panel computer, be equipped with the hinge on the protecting crust of connecting panel computer and keyboard more, but the hinge in the correlation technique is mostly unipolar hinge, but the angle that can fix after the hinge rotates is single, can not satisfy the in-service use demand.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.

Therefore, the embodiment of the utility model provides the hinge which can be fixed at least two angle positions when in use, so that the diversity of angle adjustment is enriched, and the use is convenient.

The embodiment of the utility model also provides electronic equipment applying the hinge.

The hinge of the embodiment of the utility model comprises: a shaft assembly comprising a first shaft and a second shaft, the first shaft and the second shaft being spaced apart in parallel; the first hinge is arranged on the first shaft and can rotate in a first angle relative to the first shaft, the second hinge is arranged on the second shaft and can rotate in a second angle relative to the second shaft; the hinge comprises a first assembly and a second assembly, wherein the first assembly is arranged on the first shaft, the second assembly is arranged on the second shaft, the first assembly is in elastic jacking contact with a first hinge, the second assembly is in elastic jacking contact with a second hinge, and the friction force between the first assembly and the first hinge is different from the friction force between the second assembly and the second hinge.

The hinge provided by the embodiment of the utility model can be fixed at least two angle positions when in use, so that the diversity of angle adjustment is enriched, and the use is convenient.

In some embodiments, the first assembly has a first forward friction and a first reverse friction with the first hinge, the second assembly has a second forward friction and a second reverse friction with the second hinge, the first forward friction is less than the second forward friction to cause the first hinge to rotate first when the first and second hinges are open, and the first reverse friction is greater than the second reverse friction to cause the second hinge to rotate first when the first and second hinges are folded.

In some embodiments, the first assembly includes a first bushing which is fitted to an outer peripheral side of the first shaft in a rotation-stop manner and slidably in an axial direction of the first shaft, and a first elastic member which is adapted to return the first bushing to maintain engagement of the first engagement portion and the second engagement portion after the first hinge is rotated about the first shaft.

In some embodiments, the first tooth engagement portion includes a plurality of first teeth having a first tooth surface and a second tooth surface, the second tooth engagement portion includes a plurality of second teeth having a third tooth surface and a fourth tooth surface, frictional forces of the first tooth surface and the third tooth surface form the first forward friction, and frictional forces of the second tooth surface and the fourth tooth surface form the first reverse friction.

In some embodiments, the hinge includes a second bushing which is spline-fitted on an outer peripheral side of the first shaft, a portion of the first hinge is sandwiched between the first bushing and the second bushing, the first hinge is provided with a third engaging portion, the second bushing is provided with a fourth engaging portion, and the third engaging portion and the fourth engaging portion are engaged.

In some embodiments, a first stopping portion and a second stopping portion are arranged on the first shaft, and the first assembly, the first hinge and the second shaft sleeve are limited between the first stopping portion and the second stopping portion.

In some embodiments, the second assembly includes a third bushing which is fitted to an outer peripheral side of the second shaft in a rotation-stop manner and slidably in an axial direction of the second shaft, and a second elastic member which is adapted to return the third bushing to maintain engagement of the fifth engagement portion and the sixth engagement portion after the second hinge is rotated about the second shaft.

In some embodiments, the fifth tooth engagement portion includes a plurality of third teeth having a fifth tooth surface and a sixth tooth surface, the sixth tooth engagement portion includes a plurality of fourth teeth having a seventh tooth surface and an eighth tooth surface, frictional forces of the fifth tooth surface and the seventh tooth surface form the second forward friction, and frictional forces of the sixth tooth surface and the eighth tooth surface form the second reverse friction.

In some embodiments, the hinge includes a fourth bushing which is fitted to an outer peripheral side of the second shaft in a rotation-stop manner, and a portion of the second hinge is sandwiched between the third bushing and the fourth bushing, and the second hinge is provided with a seventh meshing portion, and the fourth bushing is provided with an eighth meshing portion, and the seventh meshing portion meshes with the eighth meshing portion.

In some embodiments, a third stopping portion and a fourth stopping portion are disposed on the second shaft, and the second assembly, the second hinge and the fourth shaft sleeve are limited between the third stopping portion and the fourth stopping portion.

In some embodiments, one of the first hinge and the axle assembly is provided with a first slot and the other is provided with a first projection, the first projection being slidably fitted within the first slot to allow the first hinge to rotate relative to the first axle at a first angle.

In some embodiments, one of the second hinge and the axle assembly is provided with a second groove, and the other of the second hinge and the axle assembly is provided with a second protrusion, and the second protrusion can be slidably matched in the second groove so that the second hinge can rotate in a second angle relative to the second axle.

In some embodiments, the hinge includes a third resilient element connected between the first hinge and the second hinge, the third resilient element being adapted to store energy when the first hinge and the second hinge are folded and release energy when the first hinge and the second hinge are unfolded.

In some embodiments, the third elastic member is a torsion spring, the third elastic member includes a first section and a second section connected to each other, the first section is sleeved on the first shaft and connected to the first hinge, and the second section is sleeved on the second shaft and connected to the second hinge.

In some embodiments, the shaft assembly includes a connector by which the first shaft is connected to the second shaft, the first shaft and the connector being spline-fitted, the second shaft and the connector being spline-fitted.

In some embodiments, the connector is provided with a mounting hole adapted to pass a fastener to facilitate mounting and securing of the connector.

The device applying the hinge comprises a shell and the hinge, wherein the hinge is the hinge in any embodiment, the shell comprises a first shell and a second shell, the first shell and the second shell are rotatably connected through the hinge, the first hinge is connected with the first shell, and the second hinge is connected with the second shell.

In some embodiments, the device is an accessory device, when the first housing is closed with respect to the second housing, an accommodating space for accommodating other devices is provided between the first housing and the second housing, the first housing is provided with a keyboard, and the keyboard and the first housing are in an integrated structure or a split structure.

In some embodiments, an apparatus comprises: the keyboard is arranged on the first shell; and/or, a display module, the display module is arranged on the second shell, and the keyboard and the display module can be clamped between the first shell and the second shell.

In some embodiments, the second case includes a first portion and a second portion, the second portion being connected between the second portion and the first case, the hinge being connected between the first case and the second portion, the display module being provided at the first portion, the first portion and the second portion being bendable such that the display module is suspendable over the second portion.

Drawings

Fig. 1 is a first schematic view of the overall structure of the front side of the hinge according to the embodiment of the present invention.

Fig. 2 is a schematic view of the overall structure of the front side of the hinge according to the embodiment of the present invention.

Fig. 3 is an overall structural view of the rear side of the hinge of the embodiment of the present invention.

Figure 4 is a schematic view of a first hinge of the hinge of figure 1.

Figure 5 is a schematic view of a second hinge of the hinge of figure 1.

Fig. 6 is a schematic view of the connecting member of the shaft assembly of fig. 1.

Fig. 7 is a schematic view of the first engagement portion of fig. 4.

Fig. 8 is a schematic view of the first bushing of fig. 1.

Fig. 9 is a schematic view of a second engagement portion of the first bushing of fig. 8.

Fig. 10 is a schematic view of a first shaft and a second shaft of the shaft assembly of fig. 1.

Fig. 11 is a schematic view of the principle of use of a hinge according to an embodiment of the utility model.

Reference numerals:

a hinge 100;

a shaft assembly 1; a first shaft 11; a first stopper portion 111; a second blocking portion 112; a second shaft 12; the third stopper portion 121; a fourth stopper 122; a connecting member 13; a first groove 131; a second groove 132; a mounting hole 133;

a first hinge 2; a first projection 21; the first engaging portion 22; a first tooth surface 221; a second flank 222; the third engaging portion 23;

a second hinge 3; the second projection 31; the fifth engaging portion 32; a seventh engaging portion 33;

a first component 4; a first boss 41; the third tooth surface 411; a fourth tooth surface 412; the first elastic member 42;

a second component 5; a third shaft sleeve 51; the second elastic member 52;

a third elastic member 6; a first section 61; a second section 62; a rotation stop surface 63;

a second bushing 7;

and a fourth shaft sleeve 8.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

As shown in fig. 1 to 11, a hinge 100 according to an embodiment of the present invention includes a shaft assembly 1, a first hinge 2, a second hinge 3, a first assembly 4, and a second assembly 5.

The shaft assembly 1 includes a first shaft 11 and a second shaft 12, and the first shaft 11 and the second shaft 12 are arranged in parallel at intervals. As shown in fig. 1 and 2, the shaft assembly 1 may be integrally provided, and the first shaft 11 and the second shaft 12 may be a part of the shaft assembly 1, the first shaft 11 and the second shaft 12 being spaced in parallel and each extending in the left-right direction, and the second shaft 12 being located on an upper side of the first shaft 11.

The first hinge 2 is arranged on the first shaft 11, the first hinge 2 can rotate in a first angle relative to the first shaft 11, the second hinge 3 is arranged on the second shaft 12, and the second hinge 3 can rotate in a second angle relative to the second shaft 12.

Specifically, as shown in fig. 1 and 2, the first hinge 2 may be pivotally assembled with the first shaft 11, two stop surfaces may be provided on the shaft assembly 1, for example, two stop surfaces may be provided on the first shaft 11, and the two stop surfaces may be arranged at intervals in the circumferential direction of the first shaft 11. The first hinge 2 can rotate around the first shaft 11 between two stop surfaces, and the rotation angle of the first hinge 2 can be limited within a first angle through the stop limit of the two stop surfaces.

Similarly, the second hinge 3 may be pivotally assembled with the second shaft 12, and the shaft assembly 1 may be provided with two other stop surfaces, for example, the two stop surfaces may be provided on the second shaft 12, and the two stop surfaces may be arranged at intervals in the circumferential direction of the second shaft 12. The second hinge 3 can rotate around the second shaft 12 between two stop surfaces, and the rotation angle of the second hinge 3 can be limited within a second angle through the stop limit of the two stop surfaces.

The first assembly 4 is arranged on the first shaft, the second assembly 5 is arranged on the second shaft, the first assembly 4 is in elastic jacking contact with the first hinge 2, the second assembly 5 is in elastic jacking contact with the second hinge 3, and the friction force between the first assembly 4 and the first hinge 2 is different from the friction force between the second assembly 5 and the second hinge 3.

Specifically, as shown in fig. 1, the first assembly 4 may be assembled on the first shaft 11, the first assembly 4 may be located on the left side of the first hinge 2, the first assembly 4 may include a spring, the right end of the first assembly 4 may be elastically pressed against the first hinge 2 by the spring, and the first assembly 4 may be assembled with the first shaft 11 in a rotation-stopping manner.

Similarly, as shown in fig. 1, the second assembly 5 may be assembled on the second shaft 12, and the second assembly 5 may be located on the left side of the second hinge 3, the second assembly 5 may also include a spring, the right end of the second assembly 5 may be elastically pressed against the second hinge 3 by the pushing of the spring, and the second assembly 5 may also be assembled with the second shaft 12 in a rotation-stopping manner.

It should be noted that the hinge 100 has an opening and closing state and a folding state, as shown in fig. 1, the second hinge 3 rotates to the upper rear position of the first hinge 2, the first hinge 2 and the second hinge 3 open and form an included angle, and the hinge 100 is in the opening and closing state. When the second hinge 3 is pivoted forward from the position shown in figure 1 and over the first hinge 2, with the second hinge 3 substantially parallel to the first hinge 2, the hinge 100 is switched to the folded position.

The friction between first subassembly 4 and first hinge 2 can be greater than the friction between second subassembly 5 and second hinge 3, from this, in the in-process that hinge 100 switched to the state of opening and shutting, second hinge 3 can rotate around axle subassembly 1 earlier, waits that second hinge 3 rotates the second angle relative to axle subassembly 1 after, and first hinge 2 rotates relative to axle subassembly 1 again. Therefore, the use touch feeling of the hinge 100 can be changed, and the opening experience is improved.

It will be appreciated that in other embodiments the friction between the first element 4 and the first hinge 2 may be less than the friction between the second element 5 and the second hinge 3.

According to the hinge 100 provided by the embodiment of the utility model, through the friction action of the first assembly 4 and the first hinge 2, the friction action of the second assembly 5 and the second hinge 3, the stopping limit of the first hinge 2 and the shaft assembly 1, and the stopping limit of the second hinge 3 and the shaft assembly 1, the opening and closing angle of the first hinge 2 and the second hinge 3 can be kept at any position within the included angle beta in fig. 11, so that the diversity of angle adjustment of the hinge 100 is enriched, and the use by a user is facilitated.

In addition, because the pivot axis of first hinge 2 and second hinge 3 is different, during the use, first hinge 2 and second hinge 3 can rotate around axis between them respectively to enriched the swing form of first hinge 2 and second hinge 3, make the angle of adjustment of first hinge 2 and second hinge 3 more various.

In some embodiments, the first element 4 is in elastically pressing contact with the first hinge 2 and has a first forward friction and a first backward friction, the second element 5 is in elastically pressing contact with the second hinge 3 and has a second forward friction and a second backward friction, the first forward friction is smaller than the second forward friction to make the first hinge 2 rotate first when the first hinge 2 and the second hinge 3 are opened, and the first backward friction is larger than the second backward friction to make the second hinge 3 rotate first when the first hinge 2 and the second hinge 3 are folded.

Specifically, when the first hinge 2 rotates around the first shaft 11, the first hinge 2 can be divided into a forward rotation and a reverse rotation, wherein the forward rotation is a swinging movement of the first hinge 2 to the rear upper side around the first shaft 11, and the reverse rotation is a swinging movement of the first hinge 2 to the front lower side around the first shaft 11. Because the first assembly 4 is not rotatable relative to the first shaft 11, the first hinge 2 rotates relative to the first assembly 4 and generates a friction effect when rotating, wherein the first forward friction is the friction effect generated with the first assembly 4 when the first hinge 2 rotates forward, and the first reverse friction is the friction effect generated with the first assembly 4 when the first hinge 2 rotates reversely.

When the second hinge 3 rotates around the second shaft 12, the second hinge 3 can rotate in a forward direction, i.e., the second hinge 3 swings backwards and upwards around the second shaft 12, and in a reverse direction, i.e., the second hinge 3 swings forwards and downwards around the second shaft 12. Because the second assembly 5 is not rotatable relative to the second shaft 12, the second hinge 3 rotates relative to the second assembly 5 and generates a friction effect, wherein the second forward friction is the friction effect generated by the second hinge 3 and the second assembly 5 during forward rotation, and the second reverse friction is the friction effect generated by the second hinge 3 and the second assembly 5 during reverse rotation.

When the hinge 100 is used, the initial configuration of the hinge 100 may be in the folded state, and the first hinge 2 may be regarded as stationary, and the action of the hinge 100 may be divided into a first process and a second process during the process of rotating the second hinge 3 backward. As shown in fig. 11, the first process is a process of swinging the second hinge 3 within the included angle α, and the second process is a process of swinging the second hinge 3 within the included angle γ.

When the hinge 100 is switched from the folding state to the opening-closing state, in the first process, because the first forward friction is smaller than the second forward friction, that is, the friction between the second hinge 3 and the shaft assembly 1 is greater than the friction between the first hinge 2 and the shaft assembly 1, the second hinge 3 and the shaft assembly 1 do not rotate relatively, and the first hinge 2 and the shaft assembly 1 rotate relatively, as shown in fig. 11, the second hinge 3 and the shaft assembly 1 may rotate relative to the first hinge 2 by an included angle α, which may also be regarded as a first included angle that the first hinge 2 may rotate relative to the first shaft 11. At this time, the second hinge 3 can be maintained at the position of the dotted line in fig. 11 due to the stop of the first hinge 2 and the shaft assembly 1, and the friction of the first assembly 4 and the first hinge 2 and the friction of the second assembly 5 and the second hinge 3.

And continuously turning over the second hinge 3 backwards (a second process), because a stop exists between the first hinge 2 and the shaft assembly 1, relative rotation does not occur between the first hinge 2 and the shaft assembly 1, relative rotation occurs between the second hinge 3 and the shaft assembly 1, the second hinge 3 continuously swings towards the rear upper side to form an included angle gamma, and the included angle gamma can also be regarded as a second included angle formed by the second hinge 3 in a rotating mode relative to the second shaft 12. After the shaft assembly 1 is rotated to the right position, the second hinge 3 can be kept at the position shown in fig. 11 due to the stopping limit of the second hinge 3 and the shaft assembly 1, the friction action of the first assembly 4 and the first hinge 2, and the friction action of the second assembly 5 and the second hinge 3.

When the hinge 100 is switched from the opening and closing state to the folding state, in the second process, the second hinge 3 rotates relative to the shaft assembly 1 due to the fact that the first reverse friction is larger than the second reverse friction, the first hinge 2 and the shaft assembly 1 cannot rotate relatively, in the first process, the second hinge 3 and the shaft assembly 1 cannot rotate relatively due to the stop of the second hinge 3 and the shaft assembly 1, and the first hinge 2 rotates relative to the shaft assembly 1.

From this, further richened the action form that hinge 100 opened and close, promoted hinge 100 and opened and closed sense of touch and variety, strengthened the science and technology and felt, satisfied customer operation requirement and experience.

In some embodiments, the first assembly 4 includes a first bushing 41 and a first elastic member 42, the first bushing 41 is rotatably fixed to an outer peripheral side of the first shaft 11 and slidably movable in an axial direction of the first shaft 11, the first hinge 2 is provided with the first engaging portion 22, the first bushing 41 is provided with the second engaging portion, and the first elastic member 42 is adapted to return the first bushing 41 to maintain engagement of the first engaging portion 22 and the second engaging portion after the first hinge 2 is rotated about the first shaft 11.

Specifically, as shown in fig. 2, the first sleeve 41 may be a circular sleeve, and as shown in fig. 8, a rotation stopping groove may be provided in the first sleeve 41, and a cross section of the rotation stopping groove may be kidney-shaped. As shown in fig. 10, the outer peripheral wall of the first shaft 11 may be provided with a rotation stop surface 63, and the rotation stop surface 63 may be a flat surface and extend in the axial direction of the first shaft 11. The first shaft 11 also corresponds to a kidney-shaped cross-section. When the anti-rotation assembly is used, the first shaft sleeve 41 is sleeved on the outer peripheral side of the first shaft 11, the first shaft sleeve 41 can slide along the axial direction of the first shaft 11, and the anti-rotation assembly of the first shaft sleeve 41 and the first shaft 11 is realized through the matching of the anti-rotation grooves and the anti-rotation surfaces 63.

As shown in fig. 2 and 3, the first elastic member 42 may be a spring, and the first elastic member 42 may be fitted around the outer peripheral side of the first shaft 11. The first elastic member 42 may be located at the left side of the first bushing 41, the first bushing 41 may be located between the first hinge 2 and the first elastic member 42, and the first elastic member 42 may elastically press the first bushing 41 to the right side, thereby achieving elastic pressing contact of the first bushing 41 and the first hinge 2.

As shown in fig. 4, the first hinge 2 is provided with a sleeve portion through which the first shaft 11 passes, and the first hinge 2 is pivotally fitted to the first shaft 11 through the sleeve portion. The first engaging portion 22 may be provided on the left side of the sleeve portion, the second engaging portion may be provided on the right side of the first sleeve 41, and the first engaging portion 22 and the second engaging portion may be engaged and fitted by the first elastic member 42. Through the meshing of first meshing portion 22 and second meshing portion, after first hinge 2 rotated for primary shaft 11, first hinge 2 can keep the angular position after the rotation, further richened hinge 100 angular adjustment's diversification, made things convenient for the use.

In some embodiments, the first tooth engagement portion 22 includes a plurality of first teeth having a first tooth flank 221 and a second tooth flank 222, the second tooth engagement portion includes a plurality of second teeth having a third tooth flank 411 and a fourth tooth flank 412, frictional forces of the first tooth flank 221 and the third tooth flank 411 form a first forward friction, and frictional forces of the second tooth flank 222 and the fourth tooth flank 412 form a first reverse friction.

Specifically, as shown in fig. 7, a plurality of first teeth each including a first tooth surface 221 and a second tooth surface 222 arranged oppositely are arranged at equal intervals and provided for one turn along the circumferential direction of the sleeve portion of the first hinge 2. As shown in fig. 8 and 9, a plurality of second teeth each including a third tooth surface 411 and a fourth tooth surface 412 arranged to be opposed to each other are arranged at equal intervals and provided for one revolution along the circumferential direction of the first sleeve 41.

When the first hinge 2 rotates in the forward direction relative to the first shaft 11, the first tooth surface 221 and the third tooth surface 411 are attached to each other, and the friction action between the first tooth surface 221 and the third tooth surface 411 is the first forward friction. When the first hinge 2 rotates reversely relative to the first shaft 11, the second tooth surface 222 and the fourth tooth surface 412 are attached to each other, and the friction action between the second tooth surface 222 and the fourth tooth surface 412 is the first reverse friction. Thereby, the arrangement of the first forward friction and the first reverse friction is facilitated.

It should be noted that, in the design process, the adjustment of the first forward friction magnitude may be realized by adjusting the inclination angles of the first tooth surface 221 and the third tooth surface 411, and the adjustment of the first reverse friction magnitude may be realized by adjusting the inclination angles of the second tooth surface 222 and the fourth tooth surface 412.

In some embodiments, the hinge 100 includes a second bushing 7, the second bushing 7 is fitted to the outer peripheral side of the first shaft 11 in a rotation-stopped manner, the first hinge 2 is sandwiched between the first bushing 41 and the second bushing 7, the first hinge 2 is provided with a third engaging portion 23, the second bushing 7 is provided with a fourth engaging portion, and the third engaging portion 23 and the fourth engaging portion are engaged.

Specifically, as shown in fig. 2 and 3, the structure of the second shaft sleeve 7 may be the same as that of the first shaft sleeve 41, a rotation stopping groove with a waist-shaped cross section may also be provided in the second shaft sleeve 7, the second shaft sleeve 7 is also sleeved on the outer peripheral side of the first shaft 11 and is in rotation stopping fit with the first shaft 11, and the first hinge 2 is located between the first shaft sleeve 41 and the second shaft sleeve 7 and is in pressing contact with the first shaft sleeve 41 and the second shaft sleeve 7 through the pushing of the first elastic member 42.

The first hinge 2 may be provided with two sleeve portions arranged at a spacing in the left-right direction, the third engaging portion 23 may be provided on the right side of the right sleeve portion, the fourth engaging portion may be provided on the left side of the second sleeve 7, and the third engaging portion 23 and the fourth engaging portion engage with each other. The effect and structure of the third engagement portion 23 and the fourth engagement portion may be the same as the effect and structure of the first engagement portion 22 and the second engagement portion, and will not be described in detail here.

Therefore, when the first hinge 2 rotates around the first shaft 11, the left side and the right side of the first hinge 2 can both receive the same friction acting force and clamping acting force, and therefore the rotating stability of the first hinge 2 is improved.

In some embodiments, the first shaft 11 is provided with a first stopping portion 111 and a second stopping portion 112, and the first assembly 4, the first hinge 2, and the second shaft sleeve 7 are limited between the first stopping portion 111 and the second stopping portion 112.

Specifically, as shown in fig. 2 and 3, the first blocking portion 111 may be disposed at a left end of the first shaft 11, the second blocking portion 112 may be disposed at a right end of the first shaft 11, and the first blocking portion 111 and the second blocking portion 112 may sandwich the first assembly 4, the first hinge 2, and the second bushing 7, thereby performing a limiting function.

Alternatively, the first stopper portion 111 may be a nut, the first stopper portion 111 may be screw-fitted on the first shaft 11, and the second stopper portion 112 may be a tip of the first shaft 11. Since the position of the first stopping portion 111 on the first shaft 11 is adjustable, the pretightening force of the first elastic member 42 can be adjusted, and the magnitude of the first forward friction and the first backward friction can be adjusted.

In some embodiments, the second assembly 5 includes a third bushing 51 and a second elastic member 52, the third bushing 51 is fixed to the outer peripheral side of the second shaft 12 in a rotation-stopping manner and is slidably movable in the axial direction of the second shaft 12, the second hinge 3 is provided with the fifth engaging portion 32, the third bushing 51 is provided with the sixth engaging portion, and the second elastic member 52 is adapted to return the third bushing 51 after the second hinge 3 is rotated about the second shaft 12 to maintain the engagement between the fifth engaging portion 32 and the sixth engaging portion.

Specifically, the structure of the third shaft sleeve 51 may be the same as that of the first shaft sleeve 41, the third shaft sleeve 51 may be in a circular shaft sleeve shape, a rotation stopping groove may also be provided in the third shaft sleeve 51, and the cross section of the rotation stopping groove may be in a kidney shape. As shown in fig. 10, the outer peripheral wall of the second shaft 12 may be provided with a rotation stop surface 63, and the rotation stop surface 63 may be a flat surface and extend in the axial direction of the second shaft 12. The second shaft 12 also corresponds to a kidney-shaped cross-section. When the anti-rotation assembly is used, the third shaft sleeve 51 is sleeved on the outer peripheral side of the second shaft 12, the third shaft sleeve 51 can slide along the axial direction of the second shaft 12, and the anti-rotation assembly of the third shaft sleeve 51 and the second shaft 12 is realized through the matching of the anti-rotation grooves and the anti-rotation surfaces 63.

As shown in fig. 2 and 3, the second elastic member 52 may be a spring, and the second elastic member 52 may be fitted around the outer peripheral side of the second shaft 12. The second elastic member 52 may be located at a left side of the third shaft sleeve 51, the third shaft sleeve 51 may be located between the second hinge 3 and the second elastic member 52, and the second elastic member 52 may elastically press the third shaft sleeve 51 to a right side, thereby achieving elastic press-contact of the third shaft sleeve 51 and the second hinge 3.

As shown in fig. 5, the second hinge 3 may also be provided with a sleeve portion through which the second shaft 12 passes, the second hinge 3 being pivotally assembled with the second shaft 12 through the sleeve portion. The fifth engaging portion 32 may be provided on the left side of the sleeve portion, the sixth engaging portion may be provided on the right side of the third shaft sleeve 51, and the fifth engaging portion 32 and the sixth engaging portion may be engaged and assembled by the second elastic member 52. Through the meshing of fifth meshing portion 32 and sixth meshing portion, after second hinge 3 rotated for second axle 12, second hinge 3 can keep the angular position after the rotation, further richened hinge 100 angular adjustment's diversification, made things convenient for the use.

In some embodiments, the fifth tooth engagement portion 32 includes a plurality of third teeth having a fifth tooth surface and a sixth tooth surface, and the sixth tooth engagement portion includes a plurality of fourth teeth having a seventh tooth surface and an eighth tooth surface, the frictional force of the fifth tooth surface and the seventh tooth surface forming a second forward friction, and the frictional force of the sixth tooth surface and the eighth tooth surface forming a second reverse friction.

Specifically, the cooperative action and effect of the fifth engaging portion 32 and the sixth engaging portion may be the same as those of the first engaging portion 22 and the second engaging portion. That is, a plurality of third teeth each including fifth and sixth tooth faces arranged in opposition are arranged at equal intervals along the circumferential direction of the sleeve portion of the second hinge 3 and provided for one revolution. A plurality of fourth teeth are arranged at equal intervals along the circumferential direction of the third sleeve 51 and provided with one turn, and each fourth tooth includes a seventh tooth face and an eighth tooth face which are oppositely arranged.

When the second hinge 3 rotates positively relative to the second shaft 12, the fifth tooth surface and the seventh tooth surface are attached to each other, and the friction action between the fifth tooth surface and the seventh tooth surface is the second positive friction. When the second hinge 3 rotates reversely relative to the second shaft 12, the sixth tooth surface and the eighth tooth surface are attached to each other, and the friction action between the sixth tooth surface and the eighth tooth surface is the second reverse friction. Thereby, the arrangement of the second forward friction and the second reverse friction is facilitated.

It should be noted that, in the design process, the adjustment of the second forward friction size may be realized by adjusting the inclination angles of the fifth tooth surface and the seventh tooth surface, and the adjustment of the second reverse friction size may be realized by adjusting the inclination angles of the sixth tooth surface and the eighth tooth surface. Thereby facilitating adjustment of the first forward friction and the second forward friction to different sizes and also facilitating adjustment of the first reverse friction and the second reverse friction to different sizes.

In some embodiments, the hinge 100 includes a fourth boss 8, the fourth boss 8 is rotation-stop fitted on the outer peripheral side of the second shaft 12, the second hinge 3 is sandwiched between the third boss 51 and the fourth boss 8, the second hinge 3 is provided with a seventh engaging portion 33, the fourth boss 8 is provided with an eighth engaging portion, and the seventh engaging portion 33 and the eighth engaging portion are engaged.

Specifically, as shown in fig. 2 and 3, the structure of the fourth shaft sleeve 8 may be the same as that of the third shaft sleeve 51, a rotation stopping groove with a waist-shaped cross section may also be provided in the fourth shaft sleeve 8, the fourth shaft sleeve 8 is also sleeved on the outer peripheral side of the second shaft 12 and is in rotation stopping fit with the second shaft 12, and the second hinge 3 is located between the third shaft sleeve 51 and the fourth shaft sleeve 8 and is in pushing contact with the third shaft sleeve 51 and the fourth shaft sleeve 8 through pushing of the second elastic member 52.

The second hinge 3 may have two sleeve portions, two sleeve portions are spaced apart in the left-right direction, the seventh engaging portion 33 is provided on the right side of the right sleeve portion, the eighth engaging portion may be provided on the left side of the fourth boss 8, and the seventh engaging portion 33 and the eighth engaging portion are engaged with each other. The effect and structure of the seventh engaging portion 33 and the eighth engaging portion may be the same as the effect and structure of the fifth engaging portion 32 and the sixth engaging portion, and will not be described again.

Therefore, when the second hinge 3 rotates around the second shaft 12, the left side and the right side of the second hinge 3 can both receive the same friction acting force and clamping acting force, and therefore the rotation stability of the second hinge 3 is improved.

In some embodiments, the second shaft 12 is provided with a third stopping portion 121 and a fourth stopping portion 122, and the second assembly 5, the second hinge 3 and the fourth sleeve 8 are limited between the third stopping portion 121 and the fourth stopping portion 122.

Specifically, as shown in fig. 2 and 3, the third blocking portion 121 may be disposed at the left end of the second shaft 12, the fourth blocking portion 122 may be disposed at the right end of the second shaft 12, and the third blocking portion 121 and the fourth blocking portion 122 may sandwich the second assembly 5, the second hinge 3, and the fourth bushing 8, thereby performing a limiting function.

Alternatively, the third stopping portion 121 may be a nut, the third stopping portion 121 may be screw-fitted on the first shaft 11, and the fourth stopping portion 122 may be an end of the second shaft 12. Since the position of the third blocking portion 121 on the second shaft 12 is adjustable, the pretightening force of the second elastic element 52 can be adjusted, and the magnitude of the second forward friction and the second reverse friction can be adjusted.

In some embodiments, one of the first hinge 2 and the shaft assembly 1 is provided with a first slot 131, and the other is provided with a first protrusion 21, and the first protrusion 21 is slidably fitted in the first slot 131 so that the first hinge 2 can rotate in a first angle relative to the first shaft 11.

Specifically, as shown in fig. 4, the first projection 21 may be provided on a sleeve portion on the left side of the first hinge 2, and the first engaging portion 22 and the first projection 21 may be located on the left and right sides of the sleeve portion, respectively. The first protrusion 21 may be of a circular arc shape. As shown in fig. 6, the shaft assembly 1 may include a coupling member 13, the coupling member 13 may be used to couple the first shaft 11 and the second shaft 12, a first groove 131 may be provided on the coupling member 13, and the first groove 131 may be a stepped groove.

When the hinge is used, the first protrusion 21 can be matched in the first groove 131, and the first hinge 2 can be limited to rotate in a first angle through the stopping limit of the first protrusion 21 and the groove wall of the first groove 131.

It will be appreciated that in other embodiments, the first slot 131 may be provided on the first hinge 2 and the first protrusion 21 may be provided on the connecting member 13.

In some embodiments, one of the second hinge 3 and the shaft assembly 1 is provided with a second groove 132, and the other is provided with a second protrusion 31, and the second protrusion 31 can be slidably fitted in the second groove 132 so that the second hinge 3 can rotate in a second angle relative to the second shaft 12.

Specifically, as shown in fig. 5, the second projection 31 may be provided on a sleeve portion on the left side of the second hinge 3, and the fifth engaging portion 32 and the second projection 31 may be located on the left and right sides of the sleeve portion, respectively. The second protrusion 31 may be of a circular arc shape. As shown in fig. 6, the shaft assembly 1 may include a coupling member 13, the coupling member 13 being used to couple the first shaft 11 and the second shaft 12, the second groove 132 may be provided on the coupling member 13, and the second groove 132 may be a stepped groove.

When the hinge is used, the second protrusion 31 can be matched in the second groove 132, and the second hinge 3 can be limited to rotate in a second angle through the stop limit of the second protrusion 31 and the groove wall of the second groove 132.

It will be appreciated that in other embodiments, the second slot 132 may be provided on the second hinge 3 and the second protrusion 31 may be provided on the connecting member 13.

In some embodiments, the hinge 100 comprises a third elastic element 6, the third elastic element 6 being connected between the first hinge 2 and the second hinge 3, the third elastic element 6 being suitable for storing energy when the first hinge 2 and the second hinge 3 are folded and for releasing energy when the first hinge 2 and the second hinge 3 are unfolded. Specifically, third elastic component 6 can be the spring, and the one end of third elastic component 6 links to each other with first hinge 2, and the other end of third elastic component 6 links to each other with second hinge 3, and when first hinge 2 and second hinge 3 switched to the coincide state, third elastic component 6 can be compressed the energy storage, and from this, in-process switching first hinge 2 and second hinge 3 to the state of opening and shutting, third elastic component 6 can release energy to realize laborsaving and made things convenient for and open.

In some embodiments, the third elastic element 6 is a torsion spring, the third elastic element 6 includes a first section 61 and a second section 62, the first section 61 is sleeved on the first shaft 11 and connected to the first hinge 2, and the second section 62 is sleeved on the second shaft 12 and connected to the second hinge 3.

Specifically, as shown in fig. 10, the third elastic element 6 includes two independent torsion spring sections, which are a first section 61 and a second section 62, respectively, wherein the first section 61 is sleeved on the outer periphery of the first shaft 11, the left end of the first section 61 is connected to the second section 62, and the right end of the first section 61 is connected to the first hinge 2. The second section 62 is sleeved on the outer peripheral side of the second shaft 12, the left end of the second section 62 is connected with the first section 61, and the right end of the second section 62 is connected with the second hinge 3. Therefore, the assembly compactness of the third elastic piece 6 and the shaft assembly 1 is enhanced, and the driving stability of the first hinge 2 and the second hinge 3 is improved.

In some embodiments, the shaft assembly 1 includes a connecting member 13, the first shaft 11 is connected to the second shaft 12 through the connecting member 13, the first shaft 11 and the connecting member 13 are in a rotation-stop assembly, and the second shaft 12 and the connecting member 13 are in a rotation-stop assembly.

Specifically, as shown in fig. 2, 3 and 6, the connecting member 13 may have a symmetrical structure, and two cylindrical portions may be provided on the connecting member 13, each extending in the left-right direction and arranged in parallel at intervals in the up-down direction. And rotation stopping holes are formed in the two cylindrical parts, the first shaft 11 can be in rotation stopping fit in the cylindrical part below the connecting piece 13, and the second shaft 12 can be in rotation stopping fit in the cylindrical part above the connecting piece 13. Therefore, the processing and production of the shaft assembly 1 are facilitated, and the assembly and disassembly of the shaft assembly 1 are also facilitated.

Alternatively, as shown in fig. 6, both the first groove 131 and the second groove 132 may be provided on the link 13, wherein the first groove 131 may be provided on the left side of the lower cylindrical portion and the second groove 132 may be provided on the left side of the upper cylindrical portion.

In some embodiments, the connecting member 13 is provided with a mounting hole 133, and the mounting hole 133 is adapted to allow a fastener to pass therethrough to facilitate mounting and fixing of the connecting member 13. As shown in fig. 6, the fastening member may be a screw, a bolt, or the like, two mounting holes 133 may be provided, two mounting holes 133 are spaced apart from each other in the left-right direction, and the mounting holes 133 may be penetrated by the fastening member, thereby facilitating the mounting and fixing of the hinge 100.

In some embodiments, as shown in fig. 11, the sum of included angle α and included angle γ may be included angle β, preferably, the included angle α is 35 degrees and the included angle β is 70 degrees.

The hinge-applied apparatus of the embodiment of the present invention is described below. The equipment can be electronic equipment such as a mobile phone, a tablet personal computer and a computer, and can also be accessory equipment of the electronic equipment such as a keyboard protective sleeve and a protective sleeve. It should be noted that the device according to the embodiment of the present invention may be understood as a device to which the hinge is applied, and the type of the device is not limited.

The device of an embodiment of the present invention includes a hinge 100, and the hinge 100 may be the hinge 100 described in the above embodiments. For example, the device may be a notebook computer, the notebook computer includes a display screen and a keyboard, the hinge 100 is connected between the display screen and the keyboard, the first hinge 2 of the hinge 100 may be connected to the keyboard, and the second hinge 3 of the hinge 100 may be connected to the display screen, thereby achieving the rotational assembly of the display screen and the keyboard.

In some embodiments, taking the device as a keyboard protective case as an example, the device is an accessory device, when the first shell is closed relative to the second shell, an accommodating space for accommodating other devices is provided between the first shell and the second shell, the first shell is provided with a keyboard, and the keyboard and the first shell are in an integrated structure or a split structure. It is to be understood that the accessory device may be a case for an electronic device, which case may or may not be provided with a keyboard.

In some embodiments, for example where the device is an electronic device, the device includes a keyboard disposed in a first housing and a display module disposed in a second housing, the keyboard and the display module being sandwiched between the first housing and the second housing. It should be noted that the keyboard may be integrated with the first casing or separated from the first casing, and the keyboard and the first casing are separated from each other, which means that the keyboard may be placed on the first casing when the keyboard is used, or may be separated from the first casing and placed separately when the keyboard is not used.

Specifically, the display module may be a display screen or a tablet computer (PAD). The keyboard can be fixed on the first shell, the display module can be fixed on the second shell, the connecting piece 13 of the hinge 100 can be fixedly connected with the shell through a fastener, the first hinge 2 of the hinge 100 is connected with the first shell, the second hinge 3 of the hinge 100 is connected with the second shell, and the folding and unfolding of the first shell and the second shell can be realized, so that the folding and unfolding of the display module and the keyboard can be realized, and during the folding, the display module and the keyboard are clamped between the first shell and the second shell.

In some embodiments, the second housing includes a first portion and a second portion, the second portion being connected between the second portion and the first housing, the hinge 100 being connected between the first housing and the second portion, the display module being provided at the first portion, the first portion and the second portion being bendable such that the display module is suspendable over the second portion.

Specifically, the second housing may be provided separately and include two parts, which are a first part and a second part, respectively, and the first part and the second part may be connected by a damping hinge. The hinge 100 is connected between the second part and the first housing, the first part being arranged on the side of the second part facing away from the hinge 100. After the first and second shells are opened, the first part can be folded backwards at a certain angle relative to the second part, the lower part of the display module can be separated from the second part, and the display module is suspended above the second part.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (20)

1. A hinge, comprising:

a shaft assembly comprising a first shaft and a second shaft, the first shaft and the second shaft being spaced apart in parallel;

the first hinge is arranged on the first shaft and can rotate in a first angle relative to the first shaft, the second hinge is arranged on the second shaft and can rotate in a second angle relative to the second shaft;

the hinge comprises a first assembly and a second assembly, wherein the first assembly is arranged on the first shaft, the second assembly is arranged on the second shaft, the first assembly is in elastic jacking contact with a first hinge, the second assembly is in elastic jacking contact with a second hinge, and the friction force between the first assembly and the first hinge is different from the friction force between the second assembly and the second hinge.

2. The hinge of claim 1, wherein the first component has a first forward friction and a first reverse friction with the first hinge and the second component has a second forward friction and a second reverse friction with the second hinge, the first forward friction being less than the second forward friction to cause the first hinge to rotate first when the first and second hinges are open, and the first reverse friction being greater than the second reverse friction to cause the second hinge to rotate first when the first and second hinges are folded.

3. The hinge according to claim 2, wherein said first assembly includes a first bushing which is fitted to an outer peripheral side of said first shaft in a rotation-stopped manner and slidably in an axial direction of said first shaft, and a first elastic member which is adapted to return said first bushing to maintain engagement of said first engagement portion and said second engagement portion after said first hinge is rotated about said first shaft, said first hinge being provided with a first engagement portion, said first bushing being provided with a second engagement portion, said first elastic member being adapted to return said first bushing after said first hinge is rotated about said first shaft.

4. The hinge according to claim 3, wherein the first engaging portion includes a plurality of first teeth having a first tooth flank and a second tooth flank, the second engaging portion includes a plurality of second teeth having a third tooth flank and a fourth tooth flank, frictional forces of the first tooth flank and the third tooth flank form the first forward friction, and frictional forces of the second tooth flank and the fourth tooth flank form the first reverse friction.

5. The hinge according to claim 3, comprising a second bushing which is fitted to an outer peripheral side of the first shaft in a rotation-stopped manner, a portion of the first hinge is sandwiched between the first bushing and the second bushing, the first hinge is provided with a third engaging portion, the second bushing is provided with a fourth engaging portion, and the third engaging portion and the fourth engaging portion are engaged.

6. The hinge according to claim 5, wherein the first shaft is provided with a first stop portion and a second stop portion, and the first assembly, the first hinge and the second bushing are limited between the first stop portion and the second stop portion.

7. The hinge according to claim 2, wherein said second assembly includes a third boss which is fitted to an outer peripheral side of said second shaft in a rotation-stop manner and slidably in an axial direction of said second shaft, and a second elastic member which is adapted to return said third boss to maintain engagement of said fifth engagement portion and said sixth engagement portion after said second hinge is rotated about said second shaft, said second hinge being provided with a fifth engagement portion, said third boss being provided with a sixth engagement portion, said second elastic member being adapted to return said third boss to maintain engagement of said fifth engagement portion and said sixth engagement portion.

8. The hinge according to claim 7, wherein the fifth engagement portion comprises a plurality of third teeth having a fifth tooth flank and a sixth tooth flank, the sixth engagement portion comprises a plurality of fourth teeth having a seventh tooth flank and an eighth tooth flank, frictional forces of the fifth tooth flank and the seventh tooth flank form the second forward friction, and frictional forces of the sixth tooth flank and the eighth tooth flank form the second reverse friction.

9. The hinge according to claim 7, comprising a fourth bushing, said fourth bushing being fitted to an outer peripheral side of said second shaft in a rotation-stop manner, a portion of said second hinge being sandwiched between said third bushing and said fourth bushing, said second hinge being provided with a seventh engaging portion, said fourth bushing being provided with an eighth engaging portion, said seventh engaging portion being engaged with said eighth engaging portion.

10. The hinge according to claim 9, wherein a third stop portion and a fourth stop portion are provided on the second shaft, and the second assembly, the second hinge and the fourth shaft sleeve are retained between the third stop portion and the fourth stop portion.

11. The hinge of claim 1, wherein one of the first hinge and the shaft assembly is provided with a first slot and the other is provided with a first projection, the first projection being slidably engaged within the first slot to allow the first hinge to rotate relative to the first shaft at a first angle.

12. The hinge of claim 1, wherein one of the second hinge and the axle assembly is provided with a second slot and the other is provided with a second projection, the second projection being slidably engaged within the second slot to allow the second hinge to rotate relative to the second axle at a second angle.

13. The hinge according to claim 1, comprising a third elastic element connected between said first and second hinges, said third elastic element being adapted to store energy when said first and second hinges are folded and to release energy when said first and second hinges are unfolded.

14. The hinge according to claim 13, wherein the third elastic member is a torsion spring, the third elastic member includes a first section and a second section connected to each other, the first section is sleeved on the first shaft and connected to the first hinge, and the second section is sleeved on the second shaft and connected to the second hinge.

15. The hinge according to any one of claims 1-14, wherein the shaft assembly comprises a connector by which the first shaft is connected to the second shaft, the first shaft and the connector being spline-fitted, the second shaft and the connector being spline-fitted.

16. The hinge of claim 15, wherein the connector is provided with mounting holes adapted to receive fasteners therethrough to facilitate mounting and securing of the connector.

17. An apparatus using a hinge, comprising a housing and a hinge according to any one of claims 1 to 16, wherein the housing comprises a first shell and a second shell, the first shell and the second shell are rotatably connected by the hinge, the first hinge is connected to the first shell, and the second hinge is connected to the second shell.

18. The device of claim 17, wherein the device is an accessory device, and when the first housing is closed relative to the second housing, a receiving space is provided between the first housing and the second housing for receiving other devices.

19. The device of claim 17, wherein the device is an electronic device comprising:

the keyboard is arranged on the first shell;

and/or, a display module, the display module is arranged on the second shell, and the keyboard and the display module can be clamped between the first shell and the second shell.

20. The apparatus of claim 19, wherein the second housing comprises a first portion and a second portion, the second portion connected between the second portion and the first housing, the hinge connected between the first housing and the second portion, the display module disposed at the first portion, the first portion and the second portion being bendable such that the display module is suspendable above the second portion.

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