TWM605571U - Variable torsion single-shaft shaft structure with multiple friction pairs - Google Patents

Abstract

A variable-torque single-axis rotating shaft structure with multiple friction pairs, fixed at one end of a pivot A first bracket, a second bracket is pivoted on the pivot, an adjusting wheel set, a friction component, and an elastic component are sleeved at the end of the pivot away from the first bracket, the adjusting wheel set and the friction component respectively have The first adjusting wheel and the second friction member that can be synchronized with the first bracket, and the second adjusting wheel and the first friction member that can be synchronized with the second bracket, the elastic component can be elastically pressed against the adjustment When the first and second brackets pivot to each other, the wheel set and the friction component can be linked to the first and second adjusting wheels to contact and abut at different positions, and generate a variety of different axial forces on the friction component, and the friction The assembly uses a plurality of first friction members and a plurality of second friction members to rub against each other at intervals to form a plurality of friction pairs that disperse friction.

Description

Variable torsion single-shaft shaft structure with multiple friction pairs

This creation is about a variable-torque single-axis shaft structure with multiple friction pairs, especially a shaft structure that arranges each elastic friction component on one side of a single pivot and can generate multiple torsion forces and disperse the effect of positive contact friction.

In the new patent case of Republic of China Patent Publication No. M460177, a multi-stage torsion device for a pivot is disclosed, which includes: a concave wheel and a cam connected in series to a pivot mandrel in an elastic force state, so The concave wheel and the cam contain opposing force-receiving surfaces; wherein: the force-receiving surface of the concave wheel is provided with at least a first concave surface, a second concave surface, and a third concave surface of continuously increasing height; The force-bearing surface is provided with a first convex surface and a second convex surface separated, and the distance between the first convex surface and the second convex surface is set to match the distance between the concave surface and the concave surface of the concave wheel; wherein, the concave Between the concave surface and the concave surface of the wheel and at both ends of the convex surface of the cam are respectively provided with guide inclined surfaces.

The above-mentioned first convex surface and the second convex surface can be placed on two concave surfaces at the same time according to different rotation angles, so as to achieve the effect of having different torque values at different rotation angle positions; however, this structure is practically applied At this time, since the torsion force when the pivot device pivots is completely provided by the friction generated by the positive elastic force between the concave wheel and the cam, it is easy to cause severe wear between the concave wheel and the cam.

In addition, in the Republic of China Patent Announcement No. M444023, a hinge device is disclosed, which has a first bracket, a second bracket, a gasket and a pivot; wherein the pivot is sleeved on both sides of the pivot. 1. A second cam structure and a plurality of elastic bodies, and the free ends on both sides of the pivot are respectively combined with a pressing member; the second cam system is synchronously linked with the second bracket, and the gasket is arranged on the second Between the cam and the second bracket, and can be synchronously linked with the first bracket, so that when the first and second brackets pivot to each other, the washer is used to contact the second cam and the second bracket respectively, The positive elastic force between the first and second brackets can be dispersed, thereby reducing the wear of each contact part.

However, in the above-mentioned structure, the first and second brackets and the first and second cams and other elements are arranged in the middle section of the pivot, and the elastic bodies and pressing parts are respectively arranged on both sides of the pivot. Therefore, when the first and second brackets are respectively combined with the two pivoting parts of an electronic device, the two ends of the pivot will protrude outward respectively. As a result, the overall design must consider how to accommodate the The protruding parts of the two ends of the pivot form restrictions on application and design.

In view of the above-mentioned shortcomings of the conventional pivot torque device, the creator researched and improved ways to address these shortcomings, and finally came up with this creation.

The main purpose of this creation is to provide a torsion variable single-axis shaft structure with multiple friction pairs, which is connected to one end of a pivot to fix a first bracket, and a second bracket is pivoted on the pivot. One end of the pivot away from the first bracket is sheathed with an adjusting wheel set and a friction element. The adjusting wheel set and the friction element respectively have a first adjusting wheel and a second friction member that can be synchronized with the first bracket. The second adjusting wheel and the first friction member, which are synchronously linked with the second bracket, can be linked to each other by the pivoting of the first and second brackets, so that the first and second adjusting wheels can contact each other at different parts, and The friction element generates a variety of different axial forces to meet the requirements of the first and second brackets to pivot and be positioned at the lifting angle; at the same time, the friction element uses a plurality of first friction element systems and a plurality of first friction elements The two friction parts rub each other at intervals, which can effectively disperse the positive force between the first and second adjusting wheels, so as to reduce the wear of the first and second adjusting wheels.

Another purpose of this creation is to provide a variable-torque uniaxial shaft structure with multiple friction pairs. An elastic element is sleeved on the end of the pivot away from the first bracket, and the elastic element can be elastically pressed against the Adjust the wheel set and friction component so that a proper elastic positive force can be maintained between the first and second adjusting wheels and between the first and second friction members. Both the components and the elastic components are arranged at one end of the pivot (away from the first bracket), so not only can the overall structure be appropriately reduced, but also the above-mentioned components can be easily housed in the electronic device in design, reducing the exposure of related components To enhance the overall texture of the product.

In order to achieve the above-mentioned purposes and effects, the technical means adopted in this creation include: a pivot, which is respectively provided with a joint and a pivot at the two ends of the pivot; a first bracket is connected to the joint, The first bracket and the pivot can be pivoted synchronously; a second bracket is pivotally fitted on the pivoting portion; an adjusting wheel set is arranged on the pivoting portion, the adjusting wheel The set has a first adjusting wheel synchronized with the pivot, and a second adjusting wheel synchronized with the second bracket. The first and second adjusting wheels can be generated with the first bracket and the second bracket respectively Relatively pivot, and respectively produce different axial urging effects on a friction component in different pivoting sections; the friction component is arranged on the pivot part, and the friction component has at least two components synchronized with the pivot A second friction member that is linked, and at least two first friction members that are synchronously linked with the second bracket, and each of the first friction members and each of the second friction members are spaced apart and contact each other for friction; an elastic component is provided On the pivotal portion, the elastic component can generate an elastic force along the axial direction of the pivot, so as to provide the elastic urging force of the adjusting wheel set and the friction component.

According to the above-mentioned structure, the first and second adjusting wheels are formed between the convex surface and the concave surface. The concave surface is provided with a plurality of stepped concave planes on the peripheral edge of one side facing the convex surface. The convex surface faces one of the concave surfaces. The side periphery is provided with at least one convex portion, and as the convex surface pivots relative to the concave surface, the convex portion can be pressed against the concave planes to form different degrees of axial compression.

According to the above-mentioned structure, each recessed plane is provided with inclined surfaces that connect with each other.

According to the above structure, the concave surface is provided with a plurality of sets of plural concave planes arranged in a step-like manner, and the convex surface is provided with a plurality of convex portions symmetrically; when the convex surface and the concave surface pivot relative to each other, each convex portion can be simultaneously pressed against On top of each concave plane of the same symmetry.

According to the above structure, the peripheral edge of the pivoting portion of the pivot is provided with at least one flattened surface, and the first adjusting wheel and each second friction member are respectively provided with a long hole with the same cross-sectional shape as the pivoting portion in the center. Sleeve on the pivot part to form a synchronous linkage.

According to the above structure, the second adjusting wheel is provided with a connecting portion extending toward the second bracket, and the connecting portion can be combined with a predetermined corresponding connected portion on the second bracket to make the second adjusting wheel It forms synchronous linkage with the second bracket.

According to the above structure, the friction component is disposed between the adjusting wheel set and the second bracket, and the first friction component has a circular hole that is pivotally fitted on the pivotal portion, and is attached to the A friction member is provided with a through hole that can fit into the connecting portion, so that the first friction member, the second bracket and the second adjusting wheel form a synchronous linkage.

According to the above structure, the first friction element on the side of the friction element close to the adjusting wheel set can be integrally formed on the side surface of one of the first and second adjusting wheels, and form a second friction element that can be connected to the adjacent second friction element The friction surface in contact with friction.

According to the above structure, the elastic component is arranged on the side of the second bracket away from the connecting portion, and an end of the pivoting portion away from the connecting portion is combined with a fixing member for blocking the elastic component.

According to the above structure, the elastic component is composed of a plurality of relatively concave and convex elastic pieces pivotally sleeved on the pivoting portion.

According to the above structure, the first bracket is connected to a local part of an electronic device, and the second bracket is connected to another local part of the electronic device.

In order to obtain a more detailed understanding of the above-mentioned purposes, effects and features of this creation, the following drawings are used to explain as follows:

Please refer to Figures 1 to 4, it can be seen that the main structure of this creation includes: pivot 1, first bracket 2, second bracket 3, adjusting wheel set 4, friction component 5 and elastic component 6; The pivot shaft 1 is provided with a connecting portion 11 and a pivoting portion 12 at two ends respectively.

In a feasible embodiment, at least one flattened surface 121 is provided on the periphery of the pivoting portion 12, and an external thread 122 is provided on the end of the pivoting portion 12 away from the connecting portion 11, which can be screwed into a threaded hole 141 The fixing part 14 (can be a nut).

The first bracket 2 is combined and fixed on the connecting portion 11 so that the first bracket 2 can pivot synchronously with the pivot 1; and in practical applications, the first bracket 2 can be combined with an electronic device Part of (not shown) (such as the main body of the case).

The second bracket 3 has a circular hole 31 and is pivotally fitted on the pivoting portion 12, and the second bracket 3 can be combined with another relatively pivotable part of the electronic device (such as: Screen).

In a feasible embodiment, at least one connected portion 32 (which may be a hole) is provided on the second bracket 3.

The adjusting wheel set 4 is arranged on the pivoting portion 12, and has a first adjusting wheel 41 synchronously linked with the pivot shaft 1, and a second adjusting wheel 42 synchronously linked with the second bracket 3. The The first and second adjusting wheels 41, 42 can pivot to each other with the first and second brackets 2, 3, and respectively contact and rub in different local parts, and can correspondingly generate a variety of different frictional resistances.

In a feasible embodiment, the first adjusting wheel 41 is provided with a convex surface (or a concave surface) facing one side of the second adjusting wheel 42, and a center of the first adjusting wheel 41 is provided with the same pivotal part 12 A long hole 411 with a cross-sectional shape, and the second adjusting wheel 42 is provided with a concave surface (or a convex surface) facing one side of the first adjusting wheel 41, and a center of the second adjusting wheel 42 is provided with a pivotable sleeve on the pivot The round hole 421 of the connecting portion 12 is provided with a connecting portion 427 (may be a protruding post) extending toward the second bracket 3 on the second adjusting wheel 42. The connecting portion 427 can be connected to the connected portion 32 (Holes) are combined with (plug-in) so that the second adjusting wheel 42 and the second bracket 3 form a synchronous linkage.

In the above structure, the concave surface is provided with a plurality of first, second, and third concave planes 422, 424, 426 arranged in a stepped manner on the peripheral edge of one side facing the convex surface, and on the first, second, and third concave planes 422, 424, There are first and second inclined surfaces 423, 425 connected to each other between 426, and the convex surface is provided with at least one convex portion 412 facing one side periphery of the concave surface. When the convex surface and the concave surface pivot relative to each other, the convex portion 412 abuts against different positions of the first, second, and third recessed planes 422, 424, 426, etc., to generate different axial forces.

In practical applications, the concave surface can be provided with a complex array of symmetrically arranged first, second, and third concave planes 422, 424, 426 and first and second inclined surfaces 423, 425 and other structures as needed, and they are also symmetrical on the convex surface A plurality of convex portions 412 are provided; when the convex surface and the concave surface are relatively pivoted, the convex portions 412 can be synchronously pressed against the same symmetrical positions in the first, second, and third concave planes 422, 424, 426, thereby The contact surface of the convex surface and the concave surface can be balanced (not easy to skew) and stable through multi-point contact.

The friction component 5 has at least two second friction members 52 synchronized with the pivot 1, and at least two first friction members 51 synchronized with the second bracket 3, and each of the first friction members 51 is connected to each The second friction members 52 are arranged at intervals and contact and rub each other.

In a feasible embodiment, the friction component 5 is disposed between the adjusting wheel set 4 and the second bracket 3, and each of the first friction members 51 has a pivotable sleeve on the pivot portion 12 The upper circular hole 511, and each of the first friction members 51 is provided with a through hole 512 that can fit into the connecting portion 427, so that each of the first friction members 51 and the second bracket 3 and the second adjusting wheel 42 forms a synchronous linkage; and each of the second friction members 52 is respectively provided with a long hole 521 with the same cross-sectional shape as the pivot portion 12 in the center, and can be sleeved on the pivot portion 12 to form a synchronous linkage.

In practical application, the first friction element 51 on the side of the friction component 5 close to the second adjusting wheel 42 can be integrally formed on the side of the second adjusting wheel 42 close to the friction component 5 to form a comparable The friction surface 428 adjacent to the second friction member 52 is in contact with the friction surface 428, thereby simplifying the overall structure and reducing the production cost.

The elastic component 6 is disposed on the pivoting portion 12 and can generate an elastic force along the axial direction of the pivot shaft 1 to elastically tighten the adjusting wheel set 4 and the friction component 5.

In a feasible embodiment, the elastic component 6 is arranged on the side of the adjusting wheel set 4 away from the connecting portion 11, and it can be composed of a plurality of relatively concave and convex elastic pieces 61, and a circular hole is respectively provided in the center of each concave and convex elastic piece 61 611. It can be pivotally sleeved on the pivoting portion 12, and a gasket 13 can be provided between the elastic component 6 and the fixing member 14 as needed, and a center of the gasket 13 is the same as the pivoting portion 12 The long hole 131 with a cross-sectional shape can block the elastic component 6 by using the gasket 13.

Please refer to Figures 5-9, it can be seen that when the creation is in operation, when the first and second brackets 2 and 3 are in the initial position of mutual folding, the convex part 412 of the first adjusting wheel 41 is protruding In the lowest position of the first concave plane 422 on the second adjusting wheel 42, the convex portion 412 and the first concave plane 422 are in an unstressed contact state (as shown in Figure 5), Therefore, the first and second brackets 2, 3 will not generate resistance when pivoting to each other, so as to facilitate the combination with the first and second brackets 2, 3 before starting to use the electronic device. There is an appropriate gap between the screen and the screen, which can be used to reach in for subsequent lifting actions.

When the first and second brackets 2, 3 pivot to the first stage, the convex portion 412 starts to slide along the first inclined surface 423 toward the second recessed plane 424, so that the adjusting wheel set 4 is opposed to the friction component 5 Generates a gradually increasing axial force, and uses multiple sets of friction between each first friction member 51 and each second friction member 52 to gradually increase the frictional resistance between the first and second brackets 2, 3 when pivoting. Increase (as shown in Figure 6), at this time the first and second brackets 2 and 3 are in an easy-to-lift state.

When the first and second brackets 2 and 3 pivot to the second stage, the convex portion 412 moves to the second concave plane 424 (as shown in FIG. 7), the adjusting wheel set 4 responds to the friction component 5 The generated axial force is maintained at a relatively low constant value, and multiple sets of friction between each first friction member 51 and each second friction member 52 are used to make the first and second brackets 2, 3 have A lower pivoting torque formed by lower frictional resistance, not only can maintain the positioning (will not fall back to cover the body of the case due to the weight of the screen) in the usual lifting positions, and it is easy to adjust the lifting angle as needed.

When the first and second brackets 2, 3 continue to pivot to the third stage, the convex portion 412 slides along the second inclined surface 425 toward the third concave plane 426 (as shown in Figure 8), so that the adjusting wheel The axial force generated by the group 4 on the friction component 5 is further gradually increased, and the multiple sets of friction between each first friction member 51 and each second friction member 52 are used to make the first and second brackets 2, 3 The frictional resistance during pivoting is further gradually increased, and it is in a state of less easy pivoting movement to avoid increasing the angle of lifting.

When the first and second brackets 2, 3 continue to pivot to the fourth stage, after the convex portion 412 moves to the third concave plane 426 (as shown in FIG. 9), the adjusting wheel set 4 responds to the friction component 5 The generated axial force is maintained at a relatively high constant value, and multiple sets of friction between each first friction member 51 and each second friction member 52 are used to make the first and second brackets 2, 3 have A higher pivoting torque formed by higher frictional resistance can not only keep the body of the casing and the screen stable and not easy to shake, but also by appropriately increasing the pivot between the first and second brackets 2, 3 The difficulty of turning is further avoided due to the increase of excessive angle.

In this creation, the above-mentioned protrusion 412 elastically abuts on the first, second, and third concave planes 422, 424, and 426 of different depths, so that the friction component 5 can be tightly pressed to different degrees, and the first, Different frictional resistances are generated between the two brackets 2 and 3 to respond to the different torsion (resistance) forces required when using the electronic device (such as lifting the screen); at the same time, a number of them are used to pivot with the first bracket 2 The friction between the second friction member 52 and the plurality of first friction members 51 pivoting with the second bracket 3 can disperse the positive direction (along the pivot axis 1) that the adjusting wheel set 4 and the elastic component 6 bear. Axial) force to effectively reduce the wear of each friction part.

This creation uses the above-mentioned structural design in which the main components such as the adjusting wheel set 4, the friction component 5 and the elastic component 6 are arranged on one end of the pivot 1, not only can appropriately reduce the length of the pivot 1, but also simplify the overall structure ; And when combined with an electronic device, only one side of the pivot 1 (the side with the above-mentioned components) needs to be hidden, so the overall structure development and design work can also be simplified.

Based on the above, the variable-torque single-axis shaft structure of this creation with multiple friction pairs can indeed achieve the centralized arrangement of the elastic friction components on the side of a single pivot, and can generate multiple pivotal torsion and disperse the positive contact friction. The effect of this is actually a novel and progressive creation, and I filed a new patent application according to law; however, the content of the above description is only a description of the preferred embodiment of this creation, and all the technical means and scope of this creation are extended Any changes, modifications, alterations or equivalent substitutions of the above shall also fall within the scope of the patent application for this creation.

1: pivot

11: Connection Department

12: Pivot

121: Flat face

122: external thread

13: Gasket

131, 411, 521: long hole

14: fixed parts

141: screw hole

2: The first bracket

3: second bracket

31, 421, 511, 611: round hole

32: connected part

4: Adjust the wheel

41: The first adjustment wheel

412: Convex

42: second adjustment wheel

422: first concave plane

423: first slope

424: second concave plane

425: second slope

426: third concave plane

427: Connection

428: friction surface

5: Friction component

51: The first friction part

512: Through hole

52: second friction part

6: Elastic component

61: bump shrapnel

Figure 1 is a three-dimensional exploded structure diagram of this creation.

Figure 2 is a schematic diagram of the enlarged structure of the first and second adjusting wheels in Figure 1.

Figure 3 is the overall appearance of this creation.

Figure 4 is a cross-sectional view of the plan combination of this creation.

Figure 5 is a schematic diagram of the first and second brackets of this creation in the folded position; at this time, the convex part is against the first concave plane.

Figure 6 is a schematic diagram of the first and second stents of this creation in the first stage of deployment; at this time, the convex part is sliding along the first inclined plane.

Figure 7 is a schematic diagram of the first and second stents of this creation in the second stage of unfolding; at this time, the convex part abuts against the second concave plane.

Figure 8 is the first and second brackets of this creation in the third stage of unfolding; at this time, the protrusion is sliding along the second inclined plane.

Figure 9 is a schematic diagram of the first and second stents of this creation in the fourth stage of unfolding; at this time, the convex part abuts against the third concave plane.

1: pivot

11: Connection Department

12: Pivot

121: Flat face

122: external thread

13: Gasket

131, 411, 521: long hole

14: fixed parts

2: The first bracket

3: second bracket

31, 421, 511, 611: round hole

32: connected part

4: Adjust the wheel

41: The first adjustment wheel

412: Convex

42: second adjustment wheel

422: first concave plane

424: second concave plane

426: third concave plane

427: Connection

428: friction surface

5: Friction component

51: The first friction part

512: Through hole

52: second friction part

6: Elastic component

61: bump shrapnel

Claims (27)

A variable-torque single-shaft shaft structure with multiple friction pairs includes at least: A pivot, a joint and a pivot are respectively provided at the two ends of the pivot; A first bracket connected to the connecting portion so that the first bracket and the pivot can pivot synchronously; A second bracket, which is pivotally sleeved on the pivoting portion; An adjusting wheel set is arranged on the pivot part. The adjusting wheel set has a first adjusting wheel synchronously linked with the pivot, and a second adjusting wheel synchronously linked with the second bracket. The first, The two adjusting gear trains can respectively pivot relative to the first bracket and the second bracket, and respectively produce different axial compression effects on a friction component in different pivoting sections; the friction component is arranged on the On the pivotal portion, the friction component has at least two second friction members synchronized with the pivot, and at least two first friction members synchronized with the second bracket, and each of the first friction members is connected to each of the The second friction members are arranged at intervals and contact and rub each other; An elastic component is arranged on the pivot part, and the elastic component can generate an elastic force along the axial direction of the pivot shaft, thereby providing an elastic force of the adjusting wheel set and the friction component. As described in item 1 of the scope of patent application, the variable torque uniaxial shaft structure with multiple friction pairs, wherein a convex surface and a concave surface are formed between the first and second adjusting wheels, and the concave surface is on the side facing the convex surface The peripheral edge is provided with at least one set of concave planes arranged in a stepped manner. The convex surface is provided with at least one convex portion on the peripheral edge of one side facing the concave surface. As the convex surface pivots relative to the concave surface, the convex portions can be pressed against each other Different degrees of axial compression are formed on each concave plane. As described in item 2 of the scope of patent application, the torsion variable single-axis shaft structure with multiple friction pairs is provided, in which each recessed plane is provided with inclined surfaces that connect with each other. As described in item 2 or 3 of the scope of patent application, the variable-torque uniaxial shaft structure with multiple friction pairs is provided, wherein the concave surface is provided with a plurality of sets of plural concave planes arranged in steps, and the convex surface is symmetrically provided with multiple Convex part; when the convex surface and the concave surface are relatively pivoted, the convex parts can be synchronously pressed against the concave planes of the same symmetry. As described in item 1, 2 or 3 of the scope of patent application, the variable-torque single-axis rotating shaft structure with multiple friction pairs is provided, wherein the peripheral edge of the pivotal portion of the pivot is provided with at least one flattened surface, and the first adjusting wheel and each The second friction member is respectively provided with a long hole in the center of the same cross-sectional shape as the pivoting portion, and can be sleeved on the pivoting portion to form a synchronous linkage. As described in item 4 of the scope of patent application, the torque variable single-axis rotating shaft structure with multiple friction pairs is provided, wherein at least one flattened surface is provided on the periphery of the pivotal portion of the pivot, and the first adjusting wheel and each second friction member A long hole with the same cross-sectional shape as the pivoting portion is respectively provided in the center, and can be sleeved on the pivoting portion to form a synchronous linkage. For example, the variable-torque single-axis shaft structure with multiple friction pairs as described in item 1, 2, or 3 of the scope of patent application, wherein the second adjusting wheel is provided with a connecting portion extending toward the second bracket, and the connecting portion is capable of It is combined with a predetermined corresponding connected part on the second bracket, so that the second adjusting wheel and the second bracket form a synchronous linkage. As described in item 4 of the scope of patent application, the variable torque uniaxial shaft structure with multiple friction pairs, wherein the second adjusting wheel is provided with a connecting portion extending toward the second bracket, and the connecting portion can be connected to the second bracket. The preset corresponding connected parts on the bracket are combined, so that the second adjusting wheel and the second bracket form a synchronous linkage. As described in item 5 of the scope of patent application, the torsion variable uniaxial shaft structure with multiple friction pairs, wherein the second adjusting wheel is provided with a connecting portion extending toward the second bracket, and the connecting portion can be connected to the second bracket. The preset corresponding connected parts on the bracket are combined, so that the second adjusting wheel and the second bracket form a synchronous linkage. As described in item 6 of the scope of patent application, the torsion variable uniaxial shaft structure with multiple friction pairs, wherein the second adjusting wheel is provided with a connecting portion extending toward the second bracket, and the connecting portion can be connected to the second bracket. The preset corresponding connected parts on the bracket are combined, so that the second adjusting wheel and the second bracket form a synchronous linkage. As described in item 7 of the scope of patent application, the variable-torque single-shaft shaft structure with multiple friction pairs, wherein the friction element is arranged between the adjusting wheel set and the second bracket, and the first friction element has a It is pivotally fitted to the circular hole on the pivoting portion, and a through hole that can be fitted to the connecting portion is provided on the first friction member, so that the first friction member and the second bracket, the second The adjustment wheel forms a synchronous linkage. As described in item 8 of the scope of patent application, the variable-torque single-shaft shaft structure with multiple friction pairs, wherein the friction component is arranged between the adjusting wheel set and the second bracket, and the first friction component has a It is pivotally fitted to the circular hole on the pivoting portion, and a through hole that can be fitted to the connecting portion is provided on the first friction member, so that the first friction member and the second bracket, the second The adjustment wheel forms a synchronous linkage. As described in item 9 of the scope of patent application, the variable-torque single-shaft shaft structure with multiple friction pairs, wherein the friction element is disposed between the adjusting wheel set and the second bracket, and the first friction element has a It is pivotally fitted to the circular hole on the pivoting portion, and a through hole that can be fitted to the connecting portion is provided on the first friction member, so that the first friction member and the second bracket, the second The adjustment wheel forms a synchronous linkage. As described in item 10 of the scope of patent application, the variable-torque single-shaft shaft structure with multiple friction pairs, wherein the friction element is arranged between the adjusting wheel set and the second bracket, and the first friction element has a It is pivotally fitted to the circular hole on the pivoting portion, and a through hole that can be fitted to the connecting portion is provided on the first friction member, so that the first friction member and the second bracket, the second The adjustment wheel forms a synchronous linkage. As described in item 11 of the scope of patent application, the variable torque uniaxial shaft structure with multiple friction pairs, wherein the friction component is close to the first friction member on the side of the adjusting wheel set, which can be integrally formed on the first and second Adjust the side surface of one of the wheels and form a friction surface which can contact and rub with the adjacent second friction member. As described in item 12 of the scope of patent application, the variable-torque single-shaft shaft structure with multiple friction pairs, wherein the friction element is close to the first friction element on the side of the adjusting wheel set, which can be integrally formed on the first and second Adjust the side surface of one of the wheels and form a friction surface which can contact and rub with the adjacent second friction member. As described in item 13 of the scope of patent application, the variable torque uniaxial shaft structure with multiple friction pairs, wherein the friction element is close to the first friction element on the side of the adjusting wheel set, which can be integrally formed on the first and second Adjust the side surface of one of the wheels and form a friction surface which can contact and rub with the adjacent second friction member. As described in item 14 of the scope of patent application, the variable-torque single-shaft shaft structure with multiple friction pairs, wherein the friction component is close to the first friction member on the side of the adjusting wheel set, which can be integrally formed on the first and second Adjust the side surface of one of the wheels and form a friction surface which can contact and rub with the adjacent second friction member. As described in item 1, 2 or 3 of the scope of the patent application, the variable torque uniaxial shaft structure with multiple friction pairs, wherein the elastic component is arranged on the side of the second bracket away from the connecting portion, and the pivoting portion An end away from the connecting portion is combined with a fixing piece for blocking the elastic component. As described in item 5 of the scope of patent application, the variable torque uniaxial shaft structure with multiple friction pairs, wherein the elastic component is arranged on the side of the second bracket away from the connecting portion, and the pivoting portion is away from the connecting portion One end is combined with a fixing part for blocking the elastic component. As described in item 7 of the scope of patent application, the variable torque uniaxial shaft structure with multiple friction pairs, wherein the elastic component is arranged on the side of the second bracket away from the connecting portion, and the pivoting portion is far away from the connecting portion One end is combined with a fixing part for blocking the elastic component. As described in item 9 of the scope of the patent application, the variable torque uniaxial shaft structure with multiple friction pairs, wherein the elastic component is arranged on the side of the second bracket away from the connecting portion, and the pivoting portion is far away from the connecting portion One end is combined with a fixing part for blocking the elastic component. As described in item 11 of the scope of patent application, the torsion variable single-axis shaft structure with multiple friction pairs, wherein the elastic component is arranged on the side of the second bracket away from the connecting portion, and the pivoting portion is far away from the connecting portion One end is combined with a fixing part for blocking the elastic component. As described in item 13 of the scope of patent application, the variable-torque uniaxial shaft structure with multiple friction pairs, wherein the elastic component is arranged on the side of the second bracket away from the connecting portion, and the pivoting portion is far away from the connecting portion One end is combined with a fixing part for blocking the elastic component. As described in item 19 of the scope of patent application, the torsion variable single-axis shaft structure with multiple friction pairs, wherein the elastic component is composed of a plurality of relatively concave and convex elastic pieces pivotally sleeved on the pivot portion. As described in item 1, 2 or 3 of the scope of the patent application, the variable torque uniaxial shaft structure with multiple friction pairs, wherein the first bracket is combined with a local part of an electronic device, and the second bracket is combined with Another part of the electronic device. As described in item 4 of the scope of patent application, the variable torque uniaxial shaft structure with multiple friction pairs, wherein the first bracket is combined with a local part of an electronic device, and the second bracket is combined with the electronic device Another local part.

Images