TWI426857B - Hinge assembly - Google Patents

Description

Hinge structure

The invention relates to a hinge structure, in particular to a hinge structure suitable for a portable electronic device such as a notebook computer.

Portable electronic devices, such as notebook computers and mobile phones, often include a body and a cover to protect the display screen on the cover of the electronic device from damage. In such electronic devices, the cover is rotatably connected by a hinge structure. To the body, the cover can be opened and closed relative to the body.

In a common hinge structure, an elastic friction member is disposed outside the pivot, and the elastic friction member applies a frictional force to the pivot so that the cover body can be rotated to different angles with respect to the body. However, the common elastic friction member is formed by integrally bending the plate, and the dimensional accuracy and shape accuracy in the bending process are difficult to ensure, so the processing cost is high. After the integral bending, the material of the sleeve is low in homogenization, the stress distribution is uneven, and deformation is easy, so the stability of the pivot wrapping is poor, and the pivoting stability of the hinge structure is lowered.

A hinge structure includes a pivot shaft, an elastic friction member sleeved outside the pivot shaft, and a sleeve sleeved outside the elastic friction member. The elastic friction member is a split structure and includes the same two parts, the two parts including The partial arc structure and the straight extension extending from the two sides of the partial arc structure, the extension portion is inserted into the groove on the inner wall of the outer sleeve. The hinge structure solves the problem that the elastic friction member is integrally bent and formed. However, in the hinge structure, both ends of the elastic friction body are inserted into the outer sleeve, and the wrapping force of the pivot shaft is constant. The torque value of the hinge structure is also fixed and cannot be adjusted, so it is only suitable for devices that do not require torque value adjustment.

In view of the above, it is necessary to provide a hinge structure with adjustable torque.

A hinge structure includes a pivot shaft, a friction member sleeved on the pivot shaft, a support member for supporting the pivot shaft and the friction member, and an adjusting member. The friction member includes a first friction body and a second friction body, and the support member has a side wall and a side wall clamp a first friction body including a first wrapping section, a first fitting portion formed at an edge of the first wrapping section, and another one away from the first fitting section from the first wrapping section a first extending portion extending outwardly from the edge, the second friction body comprising a second wrapping section, a second fitting portion formed at an edge of the second wrapping section, and away from the second winding section a second extending portion extending from the other edge of the fitting portion, the first fitting portion and the second fitting portion are fitted to each other to connect the first and second friction bodies, the first and second packages The winding segment clamps the pivot shaft therein, the adjusting member protrudes into the support member and abuts against the first or second extending portion, and the first and second wrapping segments can be adjusted by adjusting the adjusting member The wind force on the pivot.

In the above hinge structure, the adjusting member abuts against the friction member, adjusts the resisting force of the adjusting member against the friction member, and can change the wrapping force of the friction member to the pivot shaft, thereby adjusting the torque of the hinge structure.

The hinge structure of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to FIG. 1, the hinge structure 100 of the present invention includes a pivot 10, a friction member 30 acting outside the pivot 10, and a support member 50 supporting the pivot 10 and the friction member 30.

Referring to FIG. 2 together, the pivot 10 is a stepped shaft structure having a pivoting section 11 and a limiting section 13 connected to the pivoting section 11. A plurality of annular oil grooves 111 and through holes 113 are formed in the pivoting portion 11 . The annular oil groove 111 facilitates lubrication by adding a lubricant when the friction member 30 is sleeved on the pivot 10. A limiting member 1131 can be disposed in the through hole 113, and the limiting member 1131 axially limits the friction member 30. In this embodiment, the limiting member 1131 is a pin.

The friction member 30 includes a first friction body 31 and a second friction body 33, and both the first friction body 31 and the second friction body 33 have a curved structure. The first friction body 31 includes a first wrapping section 311, a first fitting portion 313 formed at an edge of the first wrapping section 311, and an outer edge away from the first fitting section 313 from the first wrapping section 311. The first extension 315 extends outward. The second friction body 33 includes a second wrapping section 331 , a second fitting portion 333 formed at an edge of the second wrapping section 331 , and another edge away from the second fitting section 333 from the second wrapping section 331 . A second extension 335 that extends outward. The first wrapping section 311 and the second wrapping section 331 are both partially curved in cross section, and the two are surrounded by a substantially annular structure.

The first fitting portion 313 includes a first fitting protrusion 3131 extending from the edge of the first wrapping section 311 along a circumferential direction of a portion of the first wrapping section 311, and an edge from the first wrapping section 311 a first fitting recess 3133 recessed in the circumferential direction; the second fitting portion 333 includes a second fitting extending from the edge of the second wrapping section 331 along the circumferential direction of the arcuate section of the second wrapping section 331 The protruding member 3331 and the second fitting recess 3333 which is recessed from the edge of the second wrapping section 331 in the circumferential direction. The first fitting protrusion 3131 is complementaryly fitted to the second fitting recess 3333, and the first fitting recess 3133 is complementaryly fitted to the second fitting protrusion 3331. In this embodiment, the first fitting protrusion 3131 and the first fitting The groove 3133, the second fitting protrusion 3331 and the second fitting groove 3333 are both T-shaped structures. When the first friction body 31 and the second friction body 33 are subjected to a pulling force in the circumferential direction, the T-shaped structure ensures the first A fitting projection 313 and the second fitting recess 3333, the first fitting recess 3133 and the second fitting projection 3331 are not disengaged.

Referring to FIG. 3 together, the support member 50 has a side wall 51 and a receiving hole 53 and an engaging groove 55 extending through the support member 50. A plurality of through holes 511 are defined in the side wall 51. The adjusting member 5111 matching the number of the through holes 511 extends from the support member 50 into the inside of the support member 50 through the through hole 511. The side wall 51 clamps the friction member 30 from both sides. The receiving hole 53 communicates with the engaging groove 55, and the hole wall 531 of the receiving hole 53 pushes the first wrapping section 311 and the second wrapping section 331 of the friction member 30 to clamp the pivot 10, and the engaging groove The inner wall 551 of the 55 pushes the first extension 315 and the second extension 335 of the friction member 30 to narrow the gap therebetween. In this embodiment, the number of the through holes 511 and the adjusting member 5111 is two, the adjusting member 5111 is a screw, the through hole 511 is a threaded hole, and the adjusting member 5111 is screwed into the supporting member 50 by screwing.

Referring to FIG. 4 , when the hinge structure 100 is assembled, the first friction body 31 of the friction member 30 is firstly engaged with the second friction body 33 , and the friction member 30 is sleeved on the pivoting portion of the pivot 10 . 11. One end of the friction member 30 is abutted against the end surface 131 of the limiting portion 13. Since the length of the pivoting section 11 is greater than the axial length of the friction member 30, after the friction member 30 is sleeved on the pivoting section 11, the portion of the pivoting section 11 is not covered by the friction member 30, and the through hole 113 is not Covered by the friction member 30. A limiting member 1131 is inserted into the through hole 113. The outer side of the limiting member 1131 is abutted against the other end of the friction member 30. The limiting member 1131 is axially coupled to the end surface 131 of the limiting portion 13 to the friction member 30. Limit, prevent friction The wiper member 30 slides in the axial direction of the pivot shaft 10.

The support member 50 is sleeved on the outside of the friction member 30, so that the first wrapping section 311 and the second wrapping section 331 of the friction member 30 are in contact with the hole wall 531 of the receiving hole 53, the first extending portion 315 and the second extending portion. The 335 is in contact with the inner wall 551 of the engaging groove 55. The side wall 51 clamps the friction member 30 from both sides. According to the principle of the lever, the first friction body 31 is supported by the first fitting portion 313, and the second friction body 33 is supported by the second fitting portion 333, and the pivot 10 is The pivoting section 11 is clamped, and the first wrapping section 311 and the second wrapping section 331 are in close contact with the pivoting section 11 and the wrapping is stable.

Finally, the adjusting member 5111 is screwed into the through hole 511 and abuts against the first extending portion 315 of the first friction body 31. The adjusting member 5111 can be adjusted to the first by adjusting the length of the adjusting member 5111 into the supporting member 50. The abutting force of the extension portion 315 of the friction body 31 changes the friction between the friction member 30 and the pivot 10, thereby adjusting the torque of the hinge structure 100.

An adjustment member 5111 is added to the hinge structure 100. The torsion force of the hinge structure 100 can be adjusted by adjusting the resistance of the adjustment member 5111 to the extension portion 315 of the first friction body 31, so that the hinge structure 100 has a larger Torque value adjustment range. The adjusting member 5111 abuts the extending portion 315 of the first friction body 31, and the first friction body 31 is pivoted by the first engaging portion 313 as a fulcrum, and finally adheres to the pivoting portion 11 of the pivot shaft 10, The contact area of the first friction body 31 with respect to the pivot 10 can be made large, and a large force wrapping can be achieved.

It can be understood that the adjusting member 5111 in the hinge structure 100 can also be a structure such as a pin. The corresponding through hole 511 is a pin hole or the like, and the number is not limited to two. The limiting member 1131 can also be a screw or the like. In the hinge structure 100, the first friction body 31 and the second friction body 33 may not include the first extension portion 315 and the The second extending portion 335 is configured to directly abut the first wrapping section 311 and the second wrapping section 331 to resist the adjustment member 5111 against the first wrapping section 311 and the second wrapping section 331. The torque value of the hinge structure 100 can be adjusted by adjusting the force. Of course, the adjusting member 5111 in the hinge structure 100 can also protrude from the two sides of the supporting member 50 into the supporting member 50 to abut against the first friction body 31 and the second friction body 33.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

(this invention)

100‧‧‧Hinged structure

10‧‧‧ pivot

11‧‧‧ pivotal section

13‧‧‧Limited paragraph

111‧‧‧Circular oil tank

113‧‧‧through hole

131‧‧‧ end face

1131‧‧‧Limited parts

30‧‧‧Friction parts

31‧‧‧First friction body

33‧‧‧second friction body

311‧‧‧First package

313‧‧‧The first fitting department

315‧‧‧First Extension

331‧‧‧second package

333‧‧‧Second fitting

335‧‧‧Second extension

3131‧‧‧First fitting projection

3133‧‧‧First fitting groove

3331‧‧‧Second fitting projection

3333‧‧‧Second fitting groove

50‧‧‧Support

51‧‧‧ side wall

53‧‧‧ accommodating holes

55‧‧‧ snap groove

511‧‧‧through holes

531‧‧‧ hole wall

551‧‧‧ inner wall

5111‧‧‧Adjustment

1 is a perspective view of a hinge structure according to an embodiment of the present invention.

Figure 2 is an exploded perspective view of the hinge structure of Figure 1.

Figure 3 is a cross-sectional view of the support member of Figure 2.

Figure 4 is a cross-sectional view of the hinge structure IV-IV of Figure 1.

10‧‧‧ pivot

11‧‧‧ pivotal section

13‧‧‧Limited paragraph

111‧‧‧Circular oil tank

113‧‧‧through hole

131‧‧‧ end face

1131‧‧‧Limited parts

31‧‧‧First friction body

33‧‧‧second friction body

311‧‧‧First package

313‧‧‧The first fitting department

315‧‧‧First Extension

331‧‧‧second package

333‧‧‧Second fitting

335‧‧‧Second extension

3131‧‧‧First fitting projection

3133‧‧‧First fitting groove

3331‧‧‧Second fitting projection

3333‧‧‧Second fitting groove

50‧‧‧Support

51‧‧‧ side wall

53‧‧‧ accommodating holes

55‧‧‧ snap groove

511‧‧‧through holes

5111‧‧‧Adjustment

Claims (8)

A hinge structure includes a pivot, a friction member acting on the pivot, and a support supporting the pivot and the friction member, the friction member including a first friction body and a second friction body, the support member having a side wall, The side wall clamps the friction member, and the improvement is that the first friction body includes a first wrapping section, a first fitting portion formed at an edge of the first wrapping section, and away from the first wrapping section a first extending portion of the other end of the fitting portion, the second friction body includes a second wrapping portion, a second fitting portion formed at an edge of the second wrapping portion, and the second portion a second extension portion extending outward from the other edge of the second fitting portion, the first fitting portion and the second fitting portion being fitted to each other to connect the first and second friction bodies The first and second wrapping sections are clamped relative to the pivoting shaft, the hinge structure further comprising an adjusting member extending into the supporting member and abutting against the first or second extension portion, The wrapping force of the first and second wrapping sections against the pivot can be adjusted by adjusting the adjustment member. The hinge structure of claim 1, wherein the first wrapping section and the second wrapping section are partially curved in cross section, and the two are surrounded by a substantially annular structure. The hinge structure of claim 2, wherein the support member has a receiving hole and an engaging groove connected to the receiving hole, and the friction member is received in the receiving hole and the engaging groove. The hinge structure of claim 2, wherein the adjusting member is locked from the outside of the support member into the support member and abuts against the first extension portion of the first friction body. The hinge structure according to claim 1, wherein the adjusting member is a through hole is formed in the side wall of the support member for receiving the screw, and the through hole is a threaded hole. The hinge structure of claim 1, wherein the pivot shaft is a stepped shaft, and includes a pivoting section and a limiting section connected to the pivoting section, and the friction member acts on the pivoting section. The hinge structure of claim 6, wherein the limiting segment has an end surface, and one end of the friction member abuts against an end surface of the limiting portion of the pivot. The hinge structure of claim 7, wherein the hinge structure further comprises a limiting member fixed to the pivot and clamped to the other end of the friction member.