TWM596290U - Pivoting mechanism - Google Patents

Abstract

A pivoting mechanism includes a base and a pivoting member. The base has a base, and a first connecting portion and a second connecting portion formed on the base and arranged in a first direction. The first connecting portion has a first pivot hole formed along the first direction. The second connecting portion has a second pivot hole formed along the first direction and corresponding to the first pivot hole, and a first torsion structure formed on an inner wall surface defining the second pivot hole. The pivoting member has a first shaft section rotatably and tightly fitted in the first pivot hole, and a second shaft section rotatably in the second pivot hole. The second shaft section is formed with a second torsion structure corresponding to the first torsion structure.

Description

Pivoting mechanism

The present invention relates to a pivoting mechanism, especially a pivoting mechanism with variable positioning torque.

In recent years, the pivoting mechanism has been widely used in various folding electronic products, and different folding electronic products have different requirements for the pivoting mechanism, and some of the folding electronic products require the pivoting mechanism in Each angular position provides a positioning torque, and the pivoting mechanism needs to increase the positioning torque at a specific angular position. Therefore, how to make the pivoting mechanism meet such needs is a subject worthy of discussion.

Therefore, an object of the present invention is to provide a pivoting mechanism that can meet the requirements in the prior art.

Therefore, in some embodiments, the new pivoting mechanism of the present invention includes a base and a pivoting member. The base has a base, and a first connecting portion and a second connecting portion formed on the base and arranged in a first direction. The first connecting portion has a first pivot hole formed along the first direction. The second connecting portion has a second pivot hole formed along the first direction and corresponding to the first pivot hole, and a first torsion structure formed on an inner wall surface defining the second pivot hole. The pivoting member has a first shaft section rotatably and tightly fitted in the first pivot hole, and a second shaft section rotatably in the second pivot hole. The second shaft section is formed with a second torsion structure corresponding to the first torsion structure. The pivoting member can rotate relative to the base between an initial angular position and an ending angular position. When the pivoting member is in a partial section between the initial angular position and the final angular position, the first torsion structure of the second connection portion and the second torsion structure of the second shaft section are concave-convexly engaged, so that There is no tight fit between the second shaft section and the second connecting portion. When the pivoting member is in another section between the initial angular position and the end angular position, the first torsion structure of the second connection portion and the second torsion structure of the second shaft section are disengaged from each other, so that the The second shaft section and the second connecting portion are tightly fitted.

In some embodiments, the first connecting portion further has an inner wall surface defining the first pivot hole penetrating outward in a second direction perpendicular to the first direction and extending along the first direction A first split, the second connecting portion further has a second split formed through the inner wall surface defining the second pivot hole outward in the second direction and extending along the first direction.

In some embodiments, the first connecting portion further has a plurality of strip grooves formed on the inner wall surface defining the first pivot hole and extending along the first direction, the strip grooves are parallel to each other Arranged at intervals.

In some embodiments, the first torsion structure includes a groove, and the second torsion structure includes a protrusion, when the pivot member is in a partial section between the initial angular position and the final angular position , The protrusion of the second torsion structure of the second shaft section is accommodated in the groove of the first torsion structure of the second connection portion, so that the second shaft section and the second connection portion are not tight Cooperating, when the pivoting member is in the other section between the initial angular position and the final angular position, the protrusion of the second torsion structure of the second shaft section is separated from the first torsion structure of the second connecting portion The groove comes out, and the protrusion abuts against the inner wall surface of the second connecting portion that defines the second pivot hole, so that the second shaft section and the second connecting portion are tightly fitted.

In some embodiments, the base further has a stop formed on the base, and the pivoting member further has a stopper. When the pivoting member is at the initial angular position and the final angular position, The stopper of the pivoting member is stopped by the stopper of the base, so that the pivoting member can only rotate between the initial angular position and the final angular position.

In some embodiments, the first shaft section and the second shaft section of the pivoting member are hollow.

In some embodiments, the first connection portion and the second connection portion are partially connected to each other adjacent to the seat body.

According to the present invention, the first shaft section and the first pivot hole of the first connecting portion tightly fit each other, and only in a partial section between the initial angular position and the final angular position The second pivot section and the second pivot hole of the second connecting portion enable the pivoting mechanism to provide a main positioning torque at various angular positions, and provide a positioning torque at a specific angular position section to increase the overall Close positioning torque. Furthermore, since the structures providing the primary positioning torque and the secondary positioning torque are separated from each other, it can be avoided that when the pivoting mechanism provides the secondary positioning torque, the first torsion structure or the second torsion structure will be able to provide both the primary positioning torque and the secondary positioning torque The connecting portion of the positioning torque is spread outward to reduce the main positioning torque. Furthermore, this can prevent the first connection portion or the second connection portion from being easily elastically fatigued and permanently deformed due to excessive deformation, and prevent all stresses for generating torsion from concentrating on the first torsion structure or the first connection structure Two torque structures to avoid excessive wear of the first torque structure or the second torque structure to reduce the service life.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same number.

Referring to FIGS. 1 to 4, an embodiment of the novel pivoting mechanism 100 includes a base 1 and a pivoting member 2. It should be noted that, for example, the base 1 can be used to connect a first body (not shown) of an electronic device, and the pivoting member 2 can be used to connect a second body of the electronic device (see FIG. (Not shown) or another base (not shown), but not limited by the above connection.

Referring to FIGS. 1, 3 to 6, the base 1 has a base 11, and a first connecting portion 12 and a second connecting portion 13 formed on the base 11 and arranged along a first direction D1, the In this embodiment, the first connecting portion 12 and the second connecting portion 13 are substantially in the shape of a cylinder extending along the first direction D1, but it is not limited thereto. The first connecting portion 12 has a first pivot hole 121 formed along the first direction D1, and the second connecting portion 13 has a second pivot formed along the first direction D1 and corresponding to the first pivot hole 121 The hole 131 and a first torsion structure 132 formed on the inner wall surface defining the second pivot hole 131. In detail, in this embodiment, the first connecting portion 12 further has an inner wall surface defining the first pivot hole 121 penetrating outwardly along a second direction D2 perpendicular to the first direction D1 and A first split 122 extending along the first direction D1, and a plurality of strip-shaped grooves 123 formed on the inner wall surface of the first pivot hole 121 and extending along the first direction D1, the strip-shaped recesses The grooves 123 are arranged at intervals in parallel to each other. The second connecting portion 13 further has a second slit 133 formed through the inner wall surface defining the second pivot hole 131 outward in the second direction D2 and extending in the first direction D1. With the first split 122, the strip grooves 123, and the second split 133, the first connecting portion 12 and the second connecting portion 13 can be more easily stretched out elastically.

The pivoting member 2 has a first shaft section 21 rotatably and tightly penetrated through the first pivot hole 121 and a second shaft section 22 rotatably penetrated through the second pivot hole 131, The second shaft section 22 is formed with a second torsion structure 221 corresponding to the first torsion structure 132.

Referring to FIGS. 1, 3, and 7 to 9, the pivoting member 2 can rotate relative to the base 1 between an initial angular position and an ending angular position. When the pivoting member 2 is at any position between the initial angular position (see FIG. 8), the final angular position (see FIG. 9) and the initial angular position and the final angular position, the first shaft section 21 is The first connecting portions 12 are tightly fitted to provide a main positioning torque when the pivoting member 2 is at any position, so that the pivoting member 2 can be positioned steplessly relative to the base 1 .

Referring to FIG. 2, FIG. 4 and FIGS. 10 to 11, when the pivoting member 2 is in a partial section between the initial angular position and the ending angular position, for example, in the initial angular position in this embodiment (See FIG. 10), the first torsion structure 132 of the second connection portion 13 and the second torsion structure 221 of the second shaft section 22 are concave-convexly fitted so that the second shaft section 22 and the second connection portion 13 There is no tight fit. When the pivoting member 2 is in another section between the initial angular position and the end angular position, such as the end angular position in this embodiment (see FIG. 11), the second connection portion 13 A torsion structure 132 and the second torsion structure 221 of the second shaft section 22 are disengaged from each other, so that the second shaft section 22 and the second connecting portion 13 are tightly fitted.

In detail, in this embodiment, the first torsion structure 132 includes a groove 132a extending along the first direction D1, and the second torsion structure 221 includes a protrusion 221a extending along the first direction D1, When the pivoting member 2 is in a partial section between the initial angular position and the final angular position, the protrusion 221a of the second torsion structure 221 of the second shaft section 22 is received in the second connecting portion 13 In the groove 132a of the first torsion structure 132, so that the second shaft section 22 and the second connecting portion 13 do not form a tight fit when the pivoting member 2 is at the initial angular position and the final angular position In other sections, the protrusion 221a of the second torsion structure 221 of the second shaft section 22 comes out of the groove 132a of the first torsion structure 132 of the second connecting portion 13, and the protrusion 221a Against the inner wall surface of the second connecting portion 13 that defines the second pivot hole 131 and expands the second connecting portion 13 outward, so that the second shaft section 22 and the second connecting portion 13 There is a tight fit. However, it should be noted that, in other embodiments, the first torsion structure 132 may not include the groove 132a but include the protrusion 221a. In this case, the second torsion structure 221 does not include the protrusion 221a but includes the groove. 132a, and the number of the grooves 132a and the bumps 221a can also be adjusted according to requirements, and should not be limited by this embodiment.

The second torsion structure 221 of the second shaft section 22 and the first torsion structure 132 of the second connection portion 13 provide a positioning torque when the pivoting member 2 is at a certain specific angular position section, Therefore, the total positioning torque provided by the pivoting mechanism 100 when the pivoting member 2 is at a certain specific angular position section is increased. It should be noted that although in this embodiment, the second torsion structure 221 of the second shaft section 22 and the first torsion structure 132 of the second connection portion 13 are only adjacent to the end angle position of the pivoting member 2 The secondary positioning torque is provided, but in other implementations, the position of the first torque structure 132 on the second connection portion 13 and the second torque structure 221 on the second shaft section 22 can be adjusted according to requirements Position, so that the second torsion structure 221 of the second shaft section 22 and the first torsion structure 132 of the second connection portion 13 provide the secondary positioning torque when the pivoting member 2 is in other different angular position sections , Not limited to this embodiment. In addition, although in this embodiment, the first connecting portion 12, the first shaft section 21, the second connecting portion 13 and the second shaft section 22 are only one each, but in other embodiments In the sample, the number of the first connecting portion 12, the first shaft section 21, the second connecting portion 13 and the second shaft section 22 may also be more than two, in order to meet different Torque change needs.

In detail, if the structure for providing the primary positioning torque and the structure for the secondary positioning torque are the same shaft segment and the same connecting portion, when the pivoting mechanism 100 provides the secondary positioning torque, the first torque structure 132 or the The second torsion structure 221 will expand the connecting portion outwards to reduce the main positioning torque, so that the total positioning torque will deviate from the preset value in the original design. Furthermore, in this way, it is also easy to make the connecting portion easily elastically fatigued and permanently deformed due to excessive deformation, or to concentrate all the stress for generating torsion on the first torsion structure 132 or the second torsion structure 221, the first torsion structure 132 or the second torsion structure 221 is excessively worn to reduce the service life. By separating the structure providing the primary positioning torque (the first shaft section 21 and the first connecting portion 12) and the structure providing the secondary positioning torque (the second shaft section 22 and the second connecting portion 13) from each other To avoid that when the pivoting mechanism 100 provides the secondary positioning torque, the connection portion that can provide the primary positioning torque and the secondary positioning torque at the same time because the first torsion structure 132 or the second torsion structure 221 will simultaneously expand outward The main positioning torque is reduced to prevent the total positioning torque from deviating from the preset value in the original design. Furthermore, in this way, the first connecting portion 12 or the second connecting portion 13 can be prevented from being easily elastically fatigued and permanently deformed due to excessive deformation, and all stress for generating torsion can be prevented from being concentrated on the first torsion structure 132 Or the second torsion structure 221 to avoid excessive wear of the first torsion structure 132 or the second torsion structure 221 to reduce the service life.

Referring to FIGS. 4, 6, 8 and 10, in addition, in detail, in this embodiment, the shaft diameters of the first shaft section 21 and the second shaft section 22 of the pivoting member 2 are substantially the same. The diameter of the second pivot hole 131 of the second connecting portion 13 corresponds to the shaft diameter of the second shaft section 22, but the diameter of the first pivot hole 121 of the first connecting portion 12 is smaller than the second pivot of the second connecting portion 13 The diameter of the hole 131 (see FIG. 6 ), so that the first pivot section 121 of the first connecting portion 12 is stretched out by the first shaft section 21 at any time, thereby making the first shaft section 21 and the The first connecting portion 12 continuously exhibits a tight fit state. However, it should be noted that in other embodiments, the diameter of the first pivot hole 121 of the first connecting portion 12 may be equal to the diameter of the second pivot hole 131 of the second connecting portion 13, in this embodiment In this way, the first shaft section 21 will be larger than the shaft diameter of the second shaft section 22.

Referring to FIG. 2, FIG. 4 and FIGS. 12 to 13, in this embodiment, the base 1 further has a stopper 14 formed on the seat body 11, and the pivoting member 2 further has a stopper 23, When the pivoting member 2 is at the initial angular position and the end angular position, the stopper 23 of the pivoting member 2 is blocked by the stopper 14 of the base 1 so that the pivoting member 2 only It can rotate between the initial angular position and the final angular position. It should be noted that the number of the blocking portions 14 may be two in a modified embodiment. In this modified embodiment, when the pivoting member 2 is at the initial angular position, the pivoting member 2 The stopper 23 is stopped by one of the stoppers 14 of the base 1. When the pivoting member 2 is at the end angle position, the stopper 23 of the pivoting member 2 is stopped by the other stopper 14 of the base 1.

Referring to FIGS. 1 and 8, in addition, in this embodiment, the first shaft section 21 and the second shaft section 22 of the pivoting member 2 are hollow. In detail, the pivoting member 2 is entirely hollow. Column shape, thereby reducing the weight and material usage of the pivoting member 2. However, it should be noted that, in other embodiments, the pivoting member 2 may also be in the form of a solid column, and should not be limited to the embodiment in this embodiment.

Referring to FIGS. 1 and 2, in addition, in this embodiment, the first connecting portion 12 and the second connecting portion 13 are partially connected to each other adjacent to the base 11, thereby strengthening the structural strength of the base 1 However, in other embodiments, the first connection portion 12 and the second connection portion 13 may not be connected to each other, which is not limited to this embodiment.

In summary, in the present invention, the first pivot section 21 and the first pivot hole 121 of the first connecting portion 12 are tightly fitted to each other, and only a portion between the initial angular position and the final angular position The second shaft section 22 and the second pivot hole 131 of the second connecting portion 13 are tightly matched only when the section is made, so that the pivot mechanism 100 can provide a main positioning torque at various angular positions, and in a specific The angular position section provides another positioning torque to increase the total positioning torque. And, by providing the structure that provides the primary positioning torque (the first shaft section 21 and the first connecting portion 12) and the structure that provides the secondary positioning torque (the second shaft section 22 and the second connecting portion 13) Separated from each other, it can avoid that when the pivoting mechanism 100 provides the secondary positioning torque, the connection portion that can provide the primary positioning torque and the secondary positioning torque simultaneously supports outwardly due to the first torsion structure 132 or the second torsion structure 221 To reduce the main positioning torque to prevent the total positioning torque from deviating from the preset value in the original design. Furthermore, in this way, the first connecting portion 12 or the second connecting portion 13 can be prevented from being easily elastically fatigued and permanently deformed due to excessive deformation, and all stress for generating torsion can be prevented from being concentrated on the first torsion structure 132 Or the second torsion structure 221 to avoid excessive wear of the first torsion structure 132 or the second torsion structure 221 to reduce the service life.

However, the above are only examples of the new model. When the scope of the new model cannot be limited by this, any simple equivalent changes and modifications made according to the patent application scope and patent specification content of the new model are still regarded as Within the scope of this new patent.

100: pivoting mechanism 1: pedestal 11: seat body 12: First connection 121: The first pivot hole 122: The first rift 123: Strip groove 13: Second connection 131: Second pivot hole 132: The first torsion structure 132a: groove 133: Second Rift 14: stop 2: pivot 21: The first axis segment 22: Second axis segment 221: Second torque structure 221a: bump 23: Stop D1: First direction D2: Second direction

Other features and functions of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a perspective view of an embodiment of the novel pivoting mechanism; 2 is a perspective view of FIG. 1 viewed from another perspective; 3 is an exploded perspective view of FIG. 1; 4 is an exploded perspective view of FIG. 2; 5 is a rear view of a base of this embodiment; 6 is a front view of the base of the embodiment; 7 is a top view of the embodiment, in which a pivoting member of the embodiment is located at an initial angular position; 8 is a cross-sectional view taken along line A-A in FIG. 7, the pivoting member of the embodiment in the figure is located at the initial angular position; 9 is a cross-sectional view similar to FIG. 8, in which the pivoting member of the embodiment is located at an end angle position; 10 is a cross-sectional view taken along line B-B in FIG. 7, the pivoting member of the embodiment in the figure is located at the initial angular position; 11 is a cross-sectional view similar to FIG. 10, in which the pivoting member of the embodiment is located at the end angle position; 12 is a cross-sectional view taken along line C-C in FIG. 7, the pivoting member of the embodiment in the figure is located at the initial angular position; and Fig. 13 is a cross-sectional view similar to Fig. 12, in which the pivoting member of the embodiment is located at the end angle position.

100: pivoting mechanism

1: pedestal

11: seat body

12: First connection

13: Second connection

131: Second pivot hole

132: The first torsion structure

132a: groove

133: Second Rift

14: stop

2: pivot

21: The first axis segment

22: Second axis segment

221: Second torque structure

221a: bump

23: Stop

D1: First direction

D2: Second direction

Claims (7)

A pivoting mechanism, including: A base has a base, and a first connecting portion and a second connecting portion formed on the base and arranged along a first direction, the first connecting portion has a first formed along the first direction A pivot hole, the second connecting portion has a second pivot hole formed along the first direction and corresponding to the first pivot hole, and a first torsion structure formed on an inner wall surface defining the second pivot hole; as well as A pivoting member has a first shaft section rotatably and tightly fitted in the first pivot hole, and a second shaft section rotatably punctured in the second pivot hole, the second shaft A second torsion structure corresponding to the first torsion structure is formed in the segment, the pivoting member can rotate relative to the base between an initial angular position and an ending angular position, when the pivoting member is at the initial When a partial section between the angular position and the ending angular position, the first torsion structure of the second connection portion and the second torsion structure of the second shaft section are concave-convexly matched, so that the second shaft section and the first There is no tight fit between the two connecting parts, when the pivoting member is in other sections between the initial angular position and the ending angular position, the first torsion structure of the second connecting part and the second shaft section The second torsion structures are disengaged from each other, so that the second shaft section and the second connecting portion are tightly fitted. The pivot mechanism according to claim 1, wherein the first connecting portion further has an inner wall defining the first pivot hole penetrating outwardly along a second direction perpendicular to the first direction and formed along A first split extending in the first direction, the second connecting portion further has a second formed through the inner wall surface defining the second pivot hole outward in the second direction and extending along the first direction gap. The pivot mechanism according to claim 1, wherein the first connecting portion further has a plurality of strip-shaped grooves formed on the inner wall surface defining the first pivot hole and extending along the first direction, the strips The grooves are arranged parallel to each other at intervals. The pivot mechanism according to claim 1, wherein the first torsion structure includes a groove, and the second torsion structure includes a protrusion, when the pivot member is between the initial angular position and the final angular position In some of the sections, the protrusions of the second torsion structure of the second shaft section are accommodated in the grooves of the first torsion structure of the second connection portion, so that the second shaft section is connected to the second There is no tight fit between the parts, when the pivoting member is in the other section between the initial angular position and the final angular position, the protrusion of the second torsion structure of the second shaft section is separated from the second connecting portion The groove of the first torsion structure comes out, and the protrusion abuts against the inner wall surface of the second connecting portion that defines the second pivot hole, so that the second shaft section and the second connecting portion There is a tight fit. The pivot mechanism according to any one of claim 1 to claim 4, wherein the base further has a stopper formed on the seat body, and the pivoting member further has a stopper, when the pivot When the rotating member is at the initial angular position and the ending angular position, the stopper of the pivoting member is blocked by the stop portion of the base, so that the pivoting member can only be at the initial angular position and the ending angle Rotate between positions. The pivot mechanism according to any one of claim 1 to claim 4, wherein the first shaft section and the second shaft section of the pivot member are hollow. The pivot mechanism according to any one of claim 1 to claim 4, wherein the first connection portion and the second connection portion are partially connected to each other adjacent to the seat body.

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