TWI399163B - Hinge assembly - Google Patents

Description

Hinge structure

The present invention relates to a hinge structure, and more particularly to a hinge structure for an electronic device.

With the popularity of personal computers, conventional cathode ray tube displays (CRTs) have gradually been replaced by liquid crystal displays. For convenience of use, the liquid crystal display is generally connected to the supporting device by a hinge structure, and the hinge structure can change the tilt angle of the liquid crystal display, but when the user adjusts the display angle of the liquid crystal display, the center of gravity of the liquid crystal display is opposite to the hinge structure. The change of the distance of the fulcrum, and the automatic cornering phenomenon of the liquid crystal display, can not be adjusted to a satisfactory angle and can not be stabilized. Therefore, a torsion spring that balances the gravity of the liquid crystal display is often added to the hinge structure to ensure the accuracy and stability of the angle adjustment.

A hinge structure for connecting a liquid crystal display panel and a support frame, comprising a carrier, a mandrel penetrating the carrier, two pivoting pieces sleeved on two ends of the mandrel, and two fastenings for fixing the pivoting piece to the mandrel The firmware, the sleeve sleeved on the mandrel and the two torsion springs sleeved on the sleeve. One end of the torsion spring is fixed on the bracket, one end is fixed on the pivoting piece, the bracket is fixedly connected with the supporting frame, and the pivoting piece is fixedly connected with the liquid crystal display. When adjusting the angle of the liquid crystal display, the liquid crystal display drives the pivoting piece to rotate with the mandrel as the axis, and twists the torsion spring, and balances the liquid crystal by the torsion force of the torsion spring. The gravity of the display prevents the LCD display from automatically turning. The hinge structure also has a relative movement between the torsion spring and the mandrel when the pivoting piece moves relative to the frame, because the torsion spring and the mandrel are mostly made of a metal material, and the two are different in friction due to friction. Therefore, it is necessary to add a sleeve made of a soft material to the mandrel to eliminate the abnormal noise, which increases the cost of the hinge structure and is complicated in structure.

In view of the above, it is necessary to provide a hinge structure that is simple in structure and low in cost.

A hinge structure includes a bracket, a pivoting piece, a rotating shaft rotatably connecting the pivoting piece to the bracket, and a coil spring sleeved on the rotating shaft, the pivoting piece includes a first substrate and a second connected to the first substrate a limiting hole is formed on the second substrate, and the limiting protrusion is disposed on the second substrate. The limiting convex portion is received in the limiting hole and can slide in the limiting hole to limit the pivoting piece. The rotation angle includes a first end and a second end. The first end is coupled to the rotating shaft, and the second end is coupled to the first substrate of the pivoting piece.

In the above hinge structure, when the pivoting piece rotates, the coil spring on the spring is pulled, and the elastic force of the coil spring can be used to balance the gravity of the display, so that the automatic corner of the display can be avoided, and when the coil spring is pulled by the pivoting piece The coil spring rotates with the rotating shaft as the fulcrum. There is no relative movement between the two parts, no abnormal noise occurs, and no additional components are needed to eliminate the abnormal noise, so the structure is simple and the cost can be saved.

100‧‧‧Hinged structure

11‧‧‧Ontology

15‧‧‧Connecting Department

20‧‧‧ pivoting piece

211‧‧‧ screw holes

231‧‧‧Limited holes

25‧‧‧ Third substrate

31‧‧‧Responsible Department

331‧‧‧Threading Department

351‧‧‧ Housing Department

41‧‧‧ first end

431‧‧‧connection hole

60‧‧‧Shrap

80‧‧‧fasteners

10‧‧‧ bracket

13‧‧‧Limited convex

151‧‧‧Axis hole

21‧‧‧First substrate

23‧‧‧second substrate

233‧‧‧Pivot hole

30‧‧‧ shaft

33‧‧‧ shaft

35‧‧‧Connecting rod

40‧‧‧ coil spring

43‧‧‧ second end

50‧‧‧Connecting parts

70‧‧‧flat gasket

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

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

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

Referring to FIG. 1 and FIG. 2 , the hinge structure 100 of the embodiment of the present invention includes a bracket 10 , a pivoting piece 20 connected to the bracket 10 , a rotating shaft 30 connecting the bracket 10 and the pivoting piece 20 , and being sleeved on the rotating shaft 30 . The coil spring 40, the connecting member 50 connecting the coil spring 40 and the pivoting piece 20, and the elastic piece 60, the flat washer 70 and the fastener 80 which are sleeved on the rotating shaft 30.

The bracket 10 includes a body 11 , a limiting protrusion 13 extending from opposite ends of the body 11 , and two connecting portions 15 extending from a side of the body 11 . The two connecting portions 15 are respectively provided with a non-circular shaft hole 151 through which the rotating shaft 30 passes.

The pivoting piece 20 includes a first substrate 21, a second substrate 23 perpendicularly connected to the first substrate 21, and a third substrate 25 vertically connected to the second substrate 23. A threaded hole 211 is formed in the first substrate 21 so as to penetrate therethrough. The second substrate 23 has a through hole 231 and a pivot hole 233 through which the rotating shaft 30 passes. The pivoting piece 20 has two pieces, which are respectively located at two ends of the bracket 10. The two limiting protrusions 13 of the bracket 10 are respectively inserted into the limiting holes 231 of the pivoting piece 20, and the limiting protrusions 13 and the limiting holes are respectively inserted. The 231 fit can limit the angle of rotation of the pivoting piece 20.

The rotating shaft 30 includes a resisting portion 31, a non-circular shaft 33, and a connecting rod 35. The shaft 33 extends away from the abutting portion 31 from one end surface of the abutting portion 31, and the shaft 33 is away from the abutting portion. One end of 31 has a threaded portion 331. The connecting rod 35 extends away from the abutting portion 31 from the other end surface of the abutting portion 31, and the engaging rod 35 faces away from one end of the abutting portion 31. The holding portion 31 is provided with a housing portion 351. In this embodiment, the accommodating portion 351 is a rectangular groove, and the accommodating portion 351 divides the connecting rod 35 into two asymmetric portions, and the rotating shaft 30 has two.

The coil spring 40 is a planar coil spring and includes a first end 41 and a second end 43. The coil spring 40 is wound from the first end 41 as a base point, and the first end 41 and the second end 43 are perpendicular to each other, and the second end 43 is provided with a connecting hole 431 therethrough. The coil spring 40 is sleeved on the connecting rod 35 of the rotating shaft 30, and the first end 41 is inserted into the receiving portion 351 of the connecting rod 35 to prevent the coil spring 40 from rotating relative to the rotating shaft 30. The second end 43 is in contact with the first substrate 21 of the pivoting piece 20, and the connecting hole 431 thereon corresponds to the screw hole 211 on the first substrate 21. In this embodiment, the distance between the turns of the coil spring 40 is not equal, so that unequal elastic forces can be generated when rotating, and the coil spring 40 has two.

The connecting member 50 is a screw that can pass through the connecting hole 431 of the coil spring 40 and screw into the screw hole 211 of the pivoting piece 20 to fix the coil spring 40 to the pivoting piece. The connecting member 50 has two.

The elastic piece 60 has a non-circular shaft hole through which the shaft 33 of the rotating shaft 30 can pass, and can rotate with the rotating shaft 30, and the elastic piece 60 has two.

The flat washer 70 has a non-circular shaft hole through which the shaft 33 of the rotary shaft 30 can pass and can rotate with the rotary shaft 30. The flat washers 70 have a total of six, spaced between adjacent two elements to prevent the components from being worn.

The fastener 80 is a nut which can be matched with the threaded portion 331 of the shaft 33 of the rotating shaft 30. The components that are sleeved on the shaft 33 are fixed, and the fasteners 80 have two.

When the hinge structure 100 is assembled, the shaft 33 of a rotating shaft 30 is sequentially passed through a flat washer 70, a shaft hole 151 of a connecting portion 15 of the bracket 10, a flat washer 70, a spring piece 60, a flat washer 70, and a tight The firmware 80, and the fasteners 80 cooperate with the threaded portion 331 of the shaft 33 to lock the components. The other components of the other shaft 30 and the rotating shaft 30 can be assembled to the other connecting portion 15 of the bracket 10 by the same assembly step. Then, the two coil springs 40 are respectively sleeved on the connecting rods 35 of the two rotating shafts 30. The first end 41 of the coil spring 40 is inserted into the receiving portion 351 of the connecting rod 35, and the connecting hole 431 of the second end 43 is pivoted. Corresponding to the screw hole 211 of the first substrate 21 of the tab 20, the connecting member 50 can pass through the connecting hole 431 and be screwed into the screw hole 211 to fix the second end 43 to the pivoting piece 20.

When the hinge structure 100 is used to connect a display (not shown) and a supporting device (not shown), the pivoting piece 20 is fixedly connected to the display by the third substrate 25, and the bracket 10 is fixedly connected to the supporting device. Rotating the display, the pivoting piece 20 rotates accordingly, and drives the second end 43 of the coil spring 40 to move. The coil spring 40 is stretched and rotated around the rotating shaft 30, and the elastic force generated by the coil can balance the gravity of the display. The accommodating portion 351 divides the engaging rod 35 into two asymmetric portions, and the coil spring 40 rotates about the axis of the rotating shaft 30 (ie, the center of symmetry of the engaging rod 35) when being stretched, so that the movement of the coil spring 40 is eccentric motion. Different elastic forces are available. In addition, because the distance between the turns of the coil spring 40 is not equal, different elastic forces can be provided when rotating. During the rotation of the display, the distance between the center of gravity and the axis of the rotating shaft 30 is constantly changing. Therefore, the hinge structure 100 provides different elastic forces to ensure the balance of the torque and avoid the occurrence of the automatic corner.

In the hinge structure 100 provided by the embodiment of the present invention, the coil spring 40 rotates with the rotating shaft 30 as a fulcrum, and there is no relative movement between the coil spring 40 and the portion where the rotating shaft 30 contacts, no abnormal noise occurs, and no need to increase the sleeve, etc. Additional components to eliminate noise, so the structure is simple and cost-effective.

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.

10‧‧‧ bracket

13‧‧‧Limited convex

151‧‧‧Axis hole

21‧‧‧First substrate

23‧‧‧second substrate

233‧‧‧Pivot hole

30‧‧‧ shaft

33‧‧‧ shaft

35‧‧‧Connecting rod

40‧‧‧ coil spring

43‧‧‧ second end

50‧‧‧Connecting parts

70‧‧‧flat gasket

10‧‧‧ bracket

13‧‧‧Limited convex

151‧‧‧Axis hole

21‧‧‧First substrate

23‧‧‧second substrate

233‧‧‧Pivot hole

30‧‧‧ shaft

33‧‧‧ shaft

35‧‧‧Connecting rod

40‧‧‧ coil spring

43‧‧‧ second end

50‧‧‧Connecting parts

70‧‧‧flat gasket

Claims (9)

A hinge structure comprising a bracket, a pivoting piece and a rotating shaft for rotatably connecting the pivoting piece to the bracket, wherein the pivoting piece comprises a first substrate and a second substrate connected to the first substrate, the first a limiting hole is formed on the second substrate, and the limiting protrusion is disposed on the bracket, and the limiting convex portion is received in the limiting hole, and is slidable in the limiting hole to limit the rotation angle of the pivoting piece. The hinge structure further includes a coil spring sleeved on the rotating shaft, the coil spring includes a first end and a second end, the first end is connected to the rotating shaft, and the second end is connected to the first substrate of the pivoting piece. The hinge structure of claim 1, wherein the rotating shaft comprises a connecting rod, and the connecting rod is provided with a receiving portion, and the first end of the coil spring is disposed in the receiving portion of the connecting rod. The hinge structure of claim 1, wherein the hinge structure further comprises a connecting member, the connecting member fixing the second end of the coil spring to the first substrate of the pivoting piece. The hinge structure of claim 1, wherein the rotating shaft further comprises a shaft, and the second substrate of the pivoting piece is further provided with a pivot hole for the shaft to pass through. The hinge structure of claim 4, wherein the rotating shaft further comprises an abutting portion between the shaft and the connecting rod, wherein the shaft is provided with a threaded portion away from one end of the abutting portion, The hinge structure also includes a fastener that is threaded onto the threaded portion of the shaft. The hinge structure of claim 4, wherein the hinge structure further comprises a spring sleeve sleeved on the shaft of the shaft, the spring piece being located between the pivot piece and the fastener. The hinge structure of claim 2, wherein the receiving portion is a rectangular groove that divides the connecting rod into two asymmetric portions. The hinge structure according to claim 1, wherein the coil spring is a flat coil spring, and the distance between the rolls is not equal. The hinge structure of claim 1, wherein the bracket comprises a body and two opposite connecting portions extending from the body, the rotating shaft, the pivoting piece and the coil spring are two, and the two rotating shafts are separately provided. The two coil springs are respectively sleeved on the two rotating shafts, and the first ends of the two coil springs are respectively connected to the two rotating shafts, and the second ends of the two coil springs are respectively connected to the two pivots The tabs are connected.