TWI399164B - 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.

An electronic device such as a notebook computer generally includes a body and a cover. The display screen is disposed on the cover. In order to provide a better viewing angle of the display screen, the cover body is generally rotatably coupled to the body by a hinge structure.

A hinge structure includes a rotating shaft, a main member and a pivoting member pivotally coupled to the main member. The main member is not rotatable relative to the axis of rotation, and the pivot member is rotatable relative to the axis of rotation. The main member includes a spring and a main cam member. The side surface of the main cam member is provided with at least one protruding portion and a concave portion, and a slope is formed between the protruding portion and the concave portion. The pivoting member includes a pivoting cam member. The side of the pivoting cam member is provided with at least one recessed portion and a protruding portion corresponding to the main cam member, and a slope is also formed between the recessed portion and the protruding portion.

When the hinge structure is applied to an electronic device, the electronic device cover can be positioned at a specific position by the cooperation of the protruding portion and the concave portion of the main cam member and the pivoting cam member. And in the process of closing the electronic device, when the hinge structure is manually closed to a certain position, the inclined surface of the pivoting cam member is in conformity with the inclined surface of the main cam member, and the pivoting cam member protrudes under the elastic force of the spring. The portion begins to automatically slide down the slope of the main cam member and into the recess of the main cam member, thereby automatically closing the electronic device cover.

However, the above hinge structure has the following problem: if the bevel design of the main cam member and the pivot cam member is steep, the projection of the pivot cam member will be The fast speed is fastened in the recessed portion of the main cam member, which causes the automatic closing speed of the electronic device cover to be fast, which easily causes shock and impact on the display screen. If the beveled design of the main cam member and the pivoting cam member is relatively flat, the closing speed of the electronic device cover will be slower or even completely automatic. When the state is closed, the pre-tightening force between the cover body and the body is small, and the tightness of the cover body is unstable, and it is easy to automatically bounce, thereby causing inconvenience in use.

In view of the above, it is necessary to provide a hinge structure that has a self-locking speed, is comfortable to handle, and is not easy to damage the display screen and is stable in a tight state.

A hinge structure includes a pivot shaft, a rotating bracket, a fixing bracket, a fixing member, a positioning member and an elastic member, wherein the rotating bracket and the positioning member are non-rotatably connected with the pivot shaft, and the fixing bracket and the fixing member and the pivot shaft are The fixing member is fixedly connected to the fixing bracket, the elastic member is disposed on the pivot shaft to provide an axial force, and one of the fixing member and the positioning member is provided with a positioning protrusion, and the other is correspondingly disposed with The positioning protrusion cooperates with the positioning groove, and the groove wall of the positioning groove is formed by the first inclined surface and the second inclined surface which are connected to each other, and the second inclined surface is adjacent to the groove bottom of the positioning groove, and is opposite to the positioning concave The plane of the groove bottom of the groove, the slope of the first slope is smaller than the slope of the second slope.

Another hinge structure is different from the above-mentioned hinge structure in that the side wall of the positioning protrusion is composed of a first inclined surface and a second inclined surface which are connected to each other, and the first inclined surface is adjacent to a top surface of the positioning protrusion, and The slope of the first slope is smaller than the slope of the second slope relative to a plane in which the top surface of the locating protrusion is located.

The above hinge structure can be applied to an electronic device. When the electronic device is closed to a certain angle, the positioning protrusion can automatically slide into the positioning groove, so that the cover of the electronic device is automatically closed. During the automatic closing process, the positioning protrusion first cooperates with the first inclined surface of the positioning groove, or the first inclined surface of the positioning protrusion first cooperates with the positioning groove, and the buffer of the first inclined surface can be buffered due to the small slope. , and the cover body is slowly closed downward to avoid shock and impact on the display screen. Then the positioning protrusion will cooperate with the second inclined surface of the positioning groove, or the second inclined surface of the positioning protrusion will cooperate with the positioning groove, and the positioning protrusion will quickly slide into the positioning groove due to the large slope of the second inclined surface Inside, the cover body is attached to the body at a faster speed at the moment of closing, so as to avoid the phenomenon that the cover body cannot be completely closed automatically. In the closed state, since the slope of the second inclined surface is large, the positioning protrusion can be stably engaged in the positioning groove, so that the tight state of the cover body is stable, and it is not easy to automatically bounce. Therefore, the above hinge structure has the advantages of reasonable self-locking speed, comfortable hand feeling, and is not easy to damage the display screen and the state of being tight.

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

Referring to FIG. 1 to FIG. 3 , the hinge structure 10 of the first embodiment includes a pivot 11 , a rotating bracket 12 , a fixing bracket 13 , a fixing component 14 , a positioning component 15 , and a limiting component 16 . An elastic member 17, two friction plates 18, a gasket 19 and a locking member 101. The rotating bracket 12, the positioning member 15 and the limiting member 16 and the pivot shaft 11 are non-rotatably connected, and the fixing bracket 13 and the fixing member 14 and the pivot shaft 11 are rotatably connected.

The pivot shaft 11 has a non-circular cross section, and has a cylindrical flange 111 formed at one end and a threaded portion 112 formed at the other end. The pivot shaft 11 forms one end of the flange 111 and further protrudes outside the flange 111 to form a plug portion 113. The cross section of the plug portion 113 is also non-circular.

The rotating bracket 12 includes a base plate 121 on which a plurality of fixing holes 1211 are defined for fixing the rotating bracket 12 to the cover of the electronic device. One side of the substrate 121 extends vertically upward to form a positioning plate 122. The positioning plate 122 defines a non-circular deformation hole 1221 that cooperates with the pivot shaft 11.

The fixing bracket 13 includes a fixing plate 131 and a supporting plate 132 formed by vertically extending from one side of the fixing plate 131. A plurality of fixing holes 1311 are defined in the fixing plate 131 for fixing the fixing bracket 13 to the electronic device body. A pivot hole 1321 is defined in an end portion of the support plate 132 away from the fixing plate 131, and an engaging hole 1322 is defined in the middle portion. A limiting protrusion 1323 and a plurality of oil grooves 1324 are further disposed around the pivot hole 1321.

The fixing member 14 is substantially fan-shaped, and has a circular shaft hole 141 at the center thereof. The end of the fixing member 14 protrudes outward to form a protrusion 142. Two positioning protrusions 143 are formed on one side of the fixing member 14, and the side walls of the two sides of the positioning protrusion 143 are all inclined surfaces.

The positioning member 15 is substantially cylindrical and has a non-circular deformation hole 151 at the center thereof. Two positioning grooves 152 are formed on one side 150 of the positioning member 15 and the fixing member 14 , and the positioning grooves 152 can cooperate with the positioning protrusions 143 of the fixing member 14 . The groove walls on both sides of the positioning groove 152 are respectively formed by a first inclined surface 1521 and a second inclined surface 1522 which are connected to each other. The first inclined surface 1521 is connected to the side surface 150, and the second inclined surface 1522 is connected to the bottom of the positioning groove 152. Relatively The slope of the first slope 1521 is smaller than the slope of the second slope 1522 in the plane of the groove bottom of the positioning groove 152.

The limiting member 16 is substantially in the shape of a disk, and a non-circular deformation hole 161 is defined in the center thereof. The periphery of the limiting member 16 protrudes outwardly to form a lug 162. The two sides of the lug 162 respectively define two limiting ends 1621 and 1622.

The elastic member 17 is a group of elastic sheets in which a plurality of disc-shaped elastic sheets are stacked, and the elastic member 17 can also be other elastic members such as springs.

A circular through hole 181 is defined in the center of the friction plate 18, and a plurality of oil grooves 182 are defined in the side surface.

A non-circular deformation hole 191 is formed in the center of the spacer 19.

The locking member 101 is a nut that cooperates with the threaded portion 112 of the pivot shaft 11.

Referring to FIG. 1 to FIG. 4 , when the hinge structure 10 is assembled, the pivot shaft 11 has one end of the threaded portion 112 passing through a circular through hole 181 of a friction plate 18 , and a non-circular deformation hole 161 of the limiting member 16 . The pivot hole 1321 of the fixing bracket 13 , the circular through hole 181 of the other friction plate 18 , the shaft hole 141 of the fixing member 14 , the non-circular deformation hole 151 of the positioning member 15 , the elastic member 17 and the non-circular deformation of the spacer 19 After the hole 191, it is screwed with the lock member 101. At the same time, the protrusions 142 on the fixing member 14 are engaged in the engaging holes 1322 of the fixing bracket 13; the positioning member 15 is engaged with the fixing member 14, and the positioning protrusions 143 on the fixing member 14 are correspondingly received in the positioning member 15 The upper positioning groove 152 is located. Then, the insertion portion 113 of the pivot shaft 11 is inserted into the non-circular deformation hole 1221 of the rotary bracket 12.

When the hinge structure 10 is applied to an electronic device, the rotating bracket 12 and the fixing bracket 13 are respectively connected to the cover body and the body of the electronic device. Turn on the electricity When the sub-device is used, the cover body is biased to push the base plate 121 of the rotating bracket 12 to rotate, the pivot shaft 11 is rotated by the rotating bracket 12, and the positioning member 15 on the pivot shaft 11 is rotated to fix the positioning of the fixing member 14. The projection 143 will slide out of the positioning groove 152 of the positioning member 15, and the elastic member 17 is compressed to generate an axial force so that the respective members are in close contact. When the cover is rotated to a specific position, the force is stopped, and the rotating bracket 12 is positioned under the frictional force of each element to position the cover at a specific position.

When the electronic device is turned off, the cover body is biased to push the base plate 121 of the rotating bracket 12 to rotate in the reverse direction, and the pivot shaft 11 and the positioning member 15 are driven to rotate together, and the positioning protrusion 143 of the fixing member 14 gradually approaches the positioning member. Positioning groove 152 of 15. When the cover body is manually closed to a certain angle, the positioning protrusion 143 of the fixing member 14 automatically slides into the positioning groove 152 of the positioning member 15 under the axial force provided by the elastic member 17, so that the cover body Automatically shut down.

Referring to FIG. 5 and FIG. 6 simultaneously, during the automatic closing of the cover body, the positioning protrusion 143 of the fixing member 14 first contacts the first inclined surface 1521 of the positioning groove 152 of the positioning member 15. At this time, the positioning projection 143 starts to enter the positioning groove 152, and the amount of compression of the elastic member 17 is reduced, and the axial force generated thereof is reduced, so that the friction torque between the elements is reduced. When the gravity moment of the cover is greater than the friction torque of each component, the cover begins to automatically close. Since the slope of the first inclined surface 1521 is small, the compression amount of the elastic member 17 is slowly reduced slightly, so that the gravity moment of the cover body is slightly larger than the friction torque of each element, so that the cover body is slowly closed downward. When the cover is closed to be attached to the body, the positioning protrusion 143 is in contact with the second inclined surface 1522 of the positioning groove 152. Since the slope of the second inclined surface 1522 is large, the positioning protrusion 143 will be rapidly Slide into the positioning groove 152 so that the cover fits the body at a faster speed. By defining the lengths of the first and second slopes 1521, 1522, the angle at which the lid is automatically closed relative to the body can be defined. Preferably, the lengths of the first and second slopes 1521, 1522 are defined such that the lid body can be automatically and slowly closed when it is at an angle of 10 degrees with respect to the body, and is quickly tightened at an angle of 2 degrees. In addition, the positioning groove 152 can also be disposed on the fixing member 14, and the positioning protrusion 143 needs to be correspondingly disposed on the positioning member 15.

In the process of using the above-mentioned hinge structure 10, the tendency of slowing and then fasting when the automatic closing is performed can be achieved. The buffering action of the first inclined surface 1521 of the positioning groove 152 of the positioning member 15 prevents the automatic closing speed of the cover body from being too fast. The display screen caused shocks and shocks. At the same time, the second inclined surface 1522 of the positioning groove 152 of the positioning member 15 allows the cover body to be attached to the body at a relatively fast speed at the moment of closing, thereby preventing the cover body from being completely automatically closed. Since the angle of this quick closing is small and the force is small, it will not cause shock and impact on the display screen. In the closed state, because the slope of the second inclined surface 1522 is large, the positioning protrusion 143 can be relatively firmly engaged in the positioning groove 152, so that the tight state of the cover body is stable, and it is not easy to automatically bounce. Therefore, the hinge structure 10 has the advantages of reasonable self-locking speed, comfortable hand feeling, and is not easy to damage the display screen and stabilize the tight state.

In addition, when the hinge structure 10 is in the closed state, the limiting end 1621 of the limiting member 16 abuts against the limiting protrusion 1323 of the fixing bracket 13 , and when the hinge structure 10 is opened to the maximum angle, the limiting end 1622 of the limiting member 16 is The limiting protrusion 1323 of the fixing bracket 13 abuts, so that the range of the rotation angle of the rotating bracket 12 relative to the fixing bracket 13 can be defined.

Referring to FIG. 7, the hinge structure 20 of the preferred embodiment 2 of the present invention is similar to the hinge structure 10 of the first embodiment, except that the side surface 240 of the fixing member 24 is formed with two positioning protrusions 243. The sidewalls on both sides of the positioning protrusion 243 are respectively formed by a first inclined surface 2431 and a second inclined surface 2432 which are connected to each other. The first inclined surface 2431 is in contact with the top surface of the positioning protrusion 243, and the second inclined surface 2432 is connected to the side surface 240, and The slope of the first slope 2431 is smaller than the slope of the second slope 2432 with respect to the plane of the top surface of the positioning protrusion 243. The positioning member 25 is formed with two positioning grooves 252 that can be engaged with the positioning protrusions 243. The groove walls on both sides of the positioning groove 252 are both inclined surfaces.

During the automatic closing of the cover body, the first inclined surface 2431 of the positioning protrusion 243 first cooperates with the positioning groove 252. Since the slope of the first inclined surface 2431 is small, the buffering function can be buffered, and the cover body is slowly closed downward, and then positioned. The second inclined surface 2432 of the protrusion 243 will cooperate with the positioning groove 252. Since the slope of the second inclined surface 2432 is large, the positioning protrusion 243 will quickly slide into the positioning groove 252, so that the cover body is attached to the body at a relatively fast speed. Hehe.

In addition, the positioning protrusion 243 can also be disposed on the positioning member 25, and the positioning groove 252 is correspondingly disposed on the fixing member 24. The number of the positioning protrusions 143, 243 and the positioning grooves 152, 252 is not limited to two, and may be one, three or four. The first inclined surface 1521 of the positioning groove 152 and the side surface 150 are not limited to being directly connected, and may also be transitioned through a small circular arc surface. The bottom of the second inclined surface 1522 and the positioning groove 152 may also be replaced by a smaller one. Circular surface transition. The first inclined surface 2431 of the positioning protrusion 243 and the top surface of the positioning protrusion 243 and the second inclined surface 2432 and the side surface 240 may also be transitioned by a small circular arc surface.

In summary, the present invention has indeed met the requirements of the invention patent, File a patent application. 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.

Hinged structure ‧‧10,20

Pivot ‧‧11

Flange ‧‧11111

Thread part ‧‧112

Plug-in ‧‧‧113

Rotating bracket ‧‧12

Substrate ‧‧‧121

Positioning plate ‧‧122

Fixed hole ‧‧1212

Non-circular deformation hole ‧‧1221

Fixed bracket ‧‧13

Fixed plate ‧‧‧131

Support plate ‧‧‧132

Fixed hole ‧‧1311

Pivot hole ‧‧1321

Clamping hole ‧‧1322

Limit bumps ‧‧1123

Oil tank ‧‧13.24

Fixings ‧‧‧14,24

Shaft hole ‧‧141

Tab ‧‧142

Positioning bulge ‧‧‧143,243

Side ‧ ‧ 240

Positioning piece ‧‧15,25

Side ‧‧‧150

Non-circular deformation hole ‧‧‧151

Positioning groove ‧‧‧152,252

First slope ‧ ‧ 1521, 2431

Second slope ‧ ‧ 1522, 2432

Limiter ‧‧16

Non-circular deformation hole ‧‧161

Lug ‧‧162

First limit ‧‧16221

Second limit ‧‧16622

Elastic parts ‧‧17

Friction plate ‧‧18

Through hole ‧‧181

Oil tank ‧‧‧182

Gasket ‧‧19

Non-circular deformation hole ‧‧191

Locking parts ‧‧‧101

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective exploded view of a hinge structure of a preferred embodiment of the present invention.

Figure 2 is a perspective view of the positioning member of the hinge structure shown in Figure 1.

3 is an exploded perspective view of another perspective view of the hinge structure shown in FIG. 1.

Figure 4 is an assembled view of the hinge structure shown in Figure 1.

FIG. 5 is a schematic view showing the cooperation of the first inclined surface of the positioning member of the hinge structure shown in FIG. 1 and the positioning protrusion of the fixing member.

6 is a schematic view showing the cooperation of the second inclined surface of the positioning member of the hinge structure shown in FIG. 1 and the positioning protrusion of the fixing member.

FIG. 7 is a schematic view showing the cooperation between the positioning groove of the positioning member of the hinge structure and the positioning protrusion of the fixing member according to the second embodiment of the present invention.

Hinged structure ‧‧10

Pivot ‧‧11

Flange ‧‧11111

Thread part ‧‧112

Plug-in ‧‧‧113

Rotating bracket ‧‧12

Substrate ‧‧‧121

Positioning plate ‧‧122

Fixed hole ‧‧1212

Non-circular deformation hole ‧‧1221

Fixed bracket ‧‧13

Fixed plate ‧‧‧131

Support plate ‧‧‧132

Fixed hole ‧‧1311

Pivot hole ‧‧1321

Clamping hole ‧‧1322

Limit bumps ‧‧1123

Oil tank ‧‧13.24

Fixings ‧‧14

Shaft hole ‧‧141

Tab ‧‧142

Positioning piece ‧‧15

Side ‧‧‧150

Non-circular deformation hole ‧‧‧151

Positioning groove ‧‧‧152

Limiter ‧‧16

Non-circular deformation hole ‧‧161

Lug ‧‧162

First limit ‧‧16221

Second limit ‧‧16622

Elastic parts ‧‧17

Friction plate ‧‧18

Through hole ‧‧181

Oil tank ‧‧‧182

Gasket ‧‧19

Non-circular deformation hole ‧‧191

Locking parts ‧‧‧101

Claims (10)

A hinge structure includes a pivot shaft, a rotating bracket, a fixing bracket, a fixing member, a positioning member and an elastic member, wherein the rotating bracket and the positioning member are non-rotatably connected with the pivot shaft, and the fixing bracket and the fixing member and the pivot shaft are The fixing member is fixedly connected to the fixing bracket, the elastic member is disposed on the pivot shaft to provide an axial force, and one of the fixing member and the positioning member is provided with a positioning protrusion, and the other is correspondingly opened. The positioning groove matched with the positioning protrusion is improved in that the groove wall of the positioning groove is formed by the first inclined surface and the second inclined surface which are connected to each other, and the second inclined surface is adjacent to the groove bottom of the positioning groove And a slope of the first slope is smaller than a slope of the second slope with respect to a plane where the groove bottom of the positioning groove is located. The hinge structure of claim 1, wherein the positioning groove is disposed on a side of the positioning member, and the first inclined surface of the positioning groove is adjacent to the side surface; the positioning protrusion is disposed on the fixing member On the side of the side, the side walls on both sides of the positioning protrusion are all inclined surfaces. The hinge structure of claim 1, wherein the hinge structure further comprises a limiting member, the peripheral edge of the limiting member is outwardly convex to form a lug, and two sides of the lug are respectively formed with two limiting ends; A fixed position protrusion is disposed on the fixing bracket, and the second limiting end of the limiting member respectively cooperates with the limiting protrusion to limit the rotation angle of the rotating bracket. The hinge structure of claim 1, wherein the pivot has a non-circular cross section, a flange is formed at one end, and a threaded portion is formed at the other end, the pivot forming one end of the flange to be further convex An insertion portion is formed outside the flange. The hinge structure of claim 4, wherein the rotating bracket is provided with a non-circular deformation hole, and the limiting member is also provided with a non-circular deformation hole, and the fixing bracket is provided with a pivot hole, the fixing a circular shaft hole is formed in the member, the pivot shaft penetrates the pivot hole of the fixing bracket, the circular shaft hole of the fixing member and the non-circular deformation hole of the limiting member, and the plug portion of the pivot portion Engaged into the non-circular deformation hole of the rotating bracket. The hinge structure of claim 1, wherein the fixing bracket is provided with a locking hole, and the fixing member is formed with a protruding post, and the protruding post is engaged in the engaging hole of the fixing bracket. The hinge structure of claim 1, wherein the elastic member is a shrapnel group formed by stacking a plurality of disc-shaped shrapnels. The hinge structure of claim 1, wherein the hinge structure further comprises a friction plate and a locking member, the friction plate being disposed adjacent to the fixing bracket, the locking member being engaged with the pivot. A hinge structure includes a pivot shaft, a rotating bracket, a fixing bracket, a fixing member, a positioning member and an elastic member, wherein the rotating bracket and the positioning member are non-rotatably connected with the pivot shaft, and the fixing bracket and the fixing member and the pivot shaft are The rotatably connected, the fixing member is fixedly connected to the fixing bracket, the elastic member is disposed on the pivot to provide an axial force, the fixing member and the positioning member are provided with positioning protrusions, and the other is correspondingly disposed The positioning groove matched with the positioning protrusion is improved in that the side wall of the positioning protrusion is formed by the first inclined surface and the second inclined surface which are connected to each other, and the first inclined surface is adjacent to the top surface of the positioning protrusion. And a slope of the first slope is smaller than a slope of the second slope with respect to a plane where the top surface of the positioning protrusion is located. The hinge structure of claim 9, wherein the positioning protrusion is disposed on a side of the fixing member, and the second inclined surface of the positioning protrusion is adjacent to the side surface; the positioning groove is disposed on the positioning member On the side of the groove, the groove walls on both sides of the positioning groove are inclined faces.