CN201818641U - Pivot device capable of changing friction area and adjusting torque force - Google Patents
Pivot device capable of changing friction area and adjusting torque force Download PDFInfo
- Publication number
- CN201818641U CN201818641U CN2010205379492U CN201020537949U CN201818641U CN 201818641 U CN201818641 U CN 201818641U CN 2010205379492 U CN2010205379492 U CN 2010205379492U CN 201020537949 U CN201020537949 U CN 201020537949U CN 201818641 U CN201818641 U CN 201818641U
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- bolster
- vertical surface
- reentrant part
- rotating shaft
- friction
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Abstract
A pivot device capable of changing friction area and adjusting torque force mainly comprises a rotary staddle, a rotating shaft, a fixing staddle, a pair of concave-convex shaft structures, a group of elastic elements, as well as a fixing device. A special-shaped recess is formed on the contact surface of any one of the elements combined in a pressed manner, a friction lug 24 is in contact with and arranged on the side surface of the special-shaped recess and can rotate together with a rotating shaft 22, and during the rotation, the friction lug can cover the special-shaped recess within a certain angle range, and the contact area within the angle range is changed so as to adjust torque force variations.
Description
Technical field
The utility model is about a kind of new structure design of pivot device, and this pivot device is arranged in the folding electronic product with a loam cake and a body, and for example notebook computer, mobile phone, translating machine etc. refer to a kind of pivot device that friction area is adjusted torsion that changes especially.
Background technique
Among folding-type electronic device, have a loam cake and a body, for example notebook computer has a display screen and a keypad portion.For display screen portion and body closure or openness relatively, pivot device must be set.
Employed pivot device in known general notebook computer, can be provided with concavo-convex wheel construction, to reach loam cake auto-closing function, case before for example novel patent announcement M254878 of Chinese T W " pivot device of tool locating function " and claimant's the novel patent announcement M295419 of Chinese T W " has the pivot that closes entire function automatically " etc.
Yet the pivot device structure that these are known except torsion can increase when 0 degree is opened, approximately all keeps necessarily at the torque value of other opening angles, and it is to contact friction area and one group of elastic element of causing by part in the pivot device rotating shaft to be provided.With the notebook computer is example, and display screen portion and is not suitable for work before angle to 90 degree of just having opened; And generally be between 135 degree, to be operating angle above 90 degree.Therefore, when the inoperative angle, be designed to lessly as the torsion with pivot device, it is laborsaving just can to make the user open, and reaches effect easy to use.So the pivot device structure of known techniques has necessity of improvement again.
Summary of the invention
Main purpose of the present utility model is, a kind of pivot device that friction area is adjusted torsion that changes is provided, and it is simple and practical, and is easy to assembly, makes simply, the auto-closing function can be provided, and can different torsion be arranged at different opening angles, thereby operation is convenient.
For achieving the above object, the utility model discloses a kind of pivot device that friction area is adjusted torsion that changes, be arranged in the folding electronic product with a loam cake and a body; It is characterized in that comprising:
One rotation bolster is connected with this loam cake;
One extends and the rotating shaft of together rotating from this rotation bolster, has a non-circular axial region at least;
One fixing bolster is connected with this body, has a vertical surface, and this vertical surface is provided with a circular axis hole that passes for this axial region;
A pair of concavo-convex wheel construction is arranged on this axial region, and this is provided with recess and the projection that the auto-closing function is provided to concavo-convex surface of taking turns contact;
On one group of axial region that is arranged at this rotating shaft so that the elastic element of axial elastic force to be provided;
Thereby one be arranged at this rotating shaft relatively terminal so that this group elastic element of another of this rotation bolster, this vertical surface and this to concavo-convex wheel construction pressure type be incorporated into make in this rotating shaft this rotation bolster relative this fixedly bolster rotate to the fixing device that unspecified angle all can be located;
At least one special-shaped reentrant part is arranged on the surface of contact of arbitrary element of this pressure type combination; And
The contact of at least one pressure type is arranged at the side of this abnormity reentrant part and can covers this abnormity reentrant part when together rotating and rotating with this axial region in a certain angular range and change area of contact with this vertical surface to adjust the friction lug that torsion changes in this angular range.
Wherein, this abnormity reentrant part upwards has different width in the Different Diameter of this axial region.
Wherein, this abnormity reentrant part is a pair of, be arranged on the recessed wheel side, and that this friction lug is all is a pair of, is the protuberance contact surface of this cam.
Also disclose a kind of pivot device that friction area is adjusted torsion that changes, be arranged in the folding electronic product with a loam cake and a body; It is characterized in that comprising:
One rotation bolster is connected with this loam cake;
One extends and the rotating shaft of together rotating from this rotation bolster, has a non-circular axial region at least;
One fixing bolster is connected with this body, has a vertical surface, and this vertical surface is provided with a circular axis hole that passes for this axial region, and is provided with a special-shaped reentrant part in this vertical surface, and this abnormity reentrant part upwards has different width in the Different Diameter of this circle axis hole;
One contact is arranged at that this vertical surface has the side of this abnormity reentrant part and can covers this abnormity reentrant part when together rotating and rotating with this axial region in a certain angular range and change area of contact with this vertical surface to adjust the friction lug that torsion changes in this angular range;
A pair of concavo-convex wheel construction is arranged in this rotating shaft, and this is provided with recess and the projection that the auto-closing function is provided to concavo-convex surface of taking turns contact;
On one group of axial region that is arranged at this rotating shaft so that the elastic element of axial elastic force to be provided; And
Thereby one be arranged at this rotating shaft relatively terminal so that this group elastic element of another of this rotation bolster, this vertical surface, this to concavo-convex wheel construction and this friction lug pressure type be incorporated into make in this rotating shaft this rotation bolster relative this fixedly bolster rotate to the fixing device that unspecified angle all can be located.
Wherein, the radial width of this abnormity reentrant part is widened with radial angle gradually from minimum; Thereby and this friction lug be one from this rotation bolster relatively fixedly bolster rotarily open the back earlier with the smallest radial width contact earlier of this abnormity reentrant part and with the relative fixedly bolster of this rotation bolster rotarily open angle increase with this abnormity reentrant part make torsion decrescence to reach the fanning strip of the laborsaving function of unlatching decrescence less than the friction area that makes this friction lug and this vertical surface that contacts of width greatly directly.
Wherein, further be provided with one on this vertical surface when this rotation bolster relatively should fixedly bolster rotarily opens to maximum opening angle and the inconsistent locating bump of a lateral margin of this friction lug.
Wherein, the recessed of this concavo-convex wheel construction taken turns the another side of being located on this vertical surface that has this locating bump relatively, and this cam has a non-circular axis hole that together rotates for axial region passes.
By said structure, the utility model utilization friction lug is different with special-shaped reentrant part area of contact when different opening angle, to change the friction area of friction lug, can design pivot device and different torsion be arranged at different opening angles, so, be greatly improved than the fixing torsion person of known techniques, and
According to design of the present utility model, when rotation bolster relative fixed bolster rotates when 0 degree is opened, because the auto-closing function that has concavo-convex wheel construction to provide has an acrotorque; After opening angle increases, because the friction lug begins contact with special-shaped reentrant part, and along with opening angle increases and increases both contact, make the rubbing contact area minimizing of lug and vertical surface of rubbing relatively, the torsion that makes pivot device decrescence.After opening angle surpasses 90 degree (loam cake that is the folding electronic product is opened into the working position), break away from because the friction lug and to contact with special-shaped reentrant part and increase and the rubbing contact area of vertical surface, then the torsion of pivot device increases with opening angle, promptly makes loam cake be equipped with bigger support force at working position.Design by this, pivot device of the present utility model makes the loam cake of folding electronic product after unlatching, the user can be opened to the working position laborsaving and fast, the operation that makes the folding electronic product more smoothly, using effect is good far beyond known techniques.
Below, structural feature of the present utility model will be described in detail according to the embodiment shown in the drawing and use effect.
Description of drawings
Fig. 1 represents first kind of embodiment's of the utility model exploded view,
Figure 1A is an A part enlarged view among Fig. 1,
Figure 1B is fixing another angle three-dimensional view of bolster among Fig. 1,
Fig. 2 represents first kind of embodiment's of the utility model constitutional diagram,
Fig. 3 represents the plane view of first kind of embodiment's of the utility model fixedly bolster,
On behalf of first kind of embodiment of the utility model, Fig. 4 to Fig. 6 rotate the action diagram that bolster relative fixed bolster is opened,
Fig. 7 represents the change curve of the torsion of first kind of embodiment's pivot device of the utility model to opening angle,
Fig. 8 represents second kind of embodiment's exploded view,
Fig. 9 represents the third embodiment's exploded view,
Fig. 9 A is Fig. 9 cam and recessed zoomed-in view of taking turns,
Figure 10 represents the 4th kind of embodiment's exploded view.
Embodiment
See also Fig. 1 and Fig. 2, be first kind of embodiment of the utility model, it provides a kind of pivot device 1 that friction area is adjusted torsion that changes, it is arranged in the folding electronic product with a loam cake and a body, the main system of pivot device 1 with a rotation bolster 11, a rotating shaft 12, fixedly bolster 13, a friction lug 14, a cam 15, one group of elastic element 16, reach a fixing device 17 and constituted.
Fixedly bolster 13 is connected with the body of folding electronic product, has a vertical surface 131, this vertical surface 131 is provided with a circular axis hole 132 and passes for axial region 121, and be provided with a special-shaped reentrant part 133 in vertical surface 131, shown in Figure 1A, and cooperate shown in Figure 3, this abnormity reentrant part 133 upwards has different width t1, t2, t3 in circular axis hole 132 Different Diameter of passing for axial region 121, the radial width of special-shaped in this embodiment reentrant part 133 is widened with radial angle gradually from minimum, i.e. t1＜t2＜t3.In addition, further be provided with a location projection 134 on the vertical surface 131.
Embodiment of the present utility model as shown in the figure, friction lug 14 is the axis of rotation 12 extended fanning strips, as shown in Figure 4, after spinning bolster 11 relative fixed bolsters 13 rotarily open, friction lug 14 contacts earlier with the smallest radial width of special-shaped reentrant part 133 earlier, and can rotarily open the angle increase with rotation bolster 11 relative fixed bolsters 13, make friction lug 14 increase greatly directly contacting of width with special-shaped reentrant part 133, make friction lug 14 decrescence few with the friction area of vertical surface 131, and the torsion that makes pivot device 1 decrescence, reaches to open the labour-saving function.
Again, with reference to shown in Figure 5, rotation bolster 11 relative fixed bolsters 13 rotarily open when 90 spend, the area maximum of the special-shaped reentrant part 133 of friction lug 14 contacts.Rotation bolster 11 relative fixed bolsters 13 rotarily open surpass 90 degree after, the area of the special-shaped reentrant part 133 of friction lug 14 contacts begins decrescence, makes that friction lug 14 is cumulative with the friction area of vertical surface 131, and makes the torsion of pivot device 1 begin cumulative.
Referring to shown in Figure 6, rotation bolster 11 relative fixed bolsters 13 rotarily open when maximum opening angle 135 is spent, and a lateral margin and the locating bump 134 of friction lug 14 are inconsistent, place restrictions on rotation bolster 11 again relative fixed bolster 13 rotate; Because the area of the special-shaped reentrant part 133 of friction lug 14 contact reduces (being contact area not as the zone of 113a among the figure), the friction area reinforcement of feasible friction lug 14 and vertical surface 131, and make pivot device 1 bigger torsion be arranged at maximum opening angle 135 degree, so that good supporting power to be provided.
The person of advancing is arranged on the axial region 121 of rotating shaft 12 of the present utility model should the be made up of the multi-disc shell fragment by group elastic element 16, provides pivot device 1 axial elastic force.In addition, fixing device 17, system is made of a nut 171 and a pad 172, be arranged at rotating shaft 12 another end of rotation bolster 11 relatively, utilize the nut 171 and the screw section 123 of axial region 121 ends to be screwed, this group elastic element 16, vertical surface 131, concavo-convex wheel construction and friction lug 14 pressure types are incorporated in the rotating shaft 12, all can locate but make rotation bolster 11 relative fixed bolsters 13 rotate to unspecified angle.
Referring to shown in Figure 7, be the torsion of first kind of embodiment's of the utility model shown in the drawing pivot device 1 change curve to opening angle, when rotation bolster 11 relative fixed bolsters 13 rotate when 0 degree is opened, because the auto-closing function that has concavo-convex wheel construction to provide has an acrotorque A; After opening angle increases, because friction lug 14 begins contact with special-shaped reentrant part 133, and along with opening angle increases and increases both contact, make the rubbing contact area minimizing of friction lug 14 and vertical surface 131 relatively, the torsion that makes pivot device 1 decrescence.After opening angle surpasses 90 degree (loam cake that is the folding electronic product is opened into the working position), break away from because friction lug 14 and to contact with special-shaped reentrant part 133 and increase and the rubbing contact area of vertical surface 131, then the torsion of pivot device 1 increases with opening angle, promptly makes loam cake be equipped with bigger support force at working position.
Design of the present utility model makes loam cake after unlatching, and the user can be opened to the working position laborsaving and fast, and the operation that makes the folding electronic product more smoothly.
Referring to Fig. 8, be second kind of embodiment of the utility model, it provides a kind of pivot device 2 that friction area is adjusted torsion that changes, similar with first kind of embodiment, pivot device 2 mainly with a rotation bolster 21, a rotating shaft 22, fixedly bolster 23, a friction lug 24, a cam 25, one group of elastic element 26, reach a fixing device 27 and constituted, different persons tie up to special-shaped reentrant part that fixing bolster 23 vertical surfaces 231 are provided with 233 and are constituted with a plurality of concave point; And 24 contacts of friction lug are arranged at the side of special-shaped reentrant part 233, and together rotate with rotating shaft 22, can cover special-shaped reentrant part 233 in a certain angular range, in this angular range, friction lug 24 changes and the area of contact of vertical surface 231 changes with the torsion of adjusting pivot device 2.
In addition, shown in Fig. 9 and Fig. 9 A, be the third embodiment of the utility model, it provides a kind of pivot device 3 that friction area is adjusted torsion that changes, mainly with a rotation bolster 31, a rotating shaft 32, fixedly bolster 33, two friction lugs 34, a cam 35, one group of elastic element 36, reach a fixing device 37 and constituted.Different persons, a pair of special-shaped reentrant part 333 is arranged on fixing bolster 33 to have on the recessed wheel side that recess 353 constituted, and this then is projection 352 contact surfaces of cam 35 to friction lug 34.Friction lug 34 can cover special-shaped reentrant part 333 in a certain angular range, in this angular range, friction lug 34 changes area of contact and changes with the torsion of adjusting pivot device 3.
At a pair of special-shaped reentrant part 333 shown in Figure 9, identical with first embodiment, upwards have different width in axial region 321 Different Diameter of rotating shaft 32.And it is shown in Figure 10, be the 4th kind of embodiment of the utility model, it provides a kind of pivot device 4 that friction area is adjusted torsion that changes, mainly with a rotation bolster 41, a rotating shaft 42, fixedly bolster 43, two friction lugs 44, a cam 45, one group of elastic element 46, reach a fixing device 47 and constituted.With the different persons of the third embodiment, the shape that ties up to special-shaped reentrant part 433 is near a triangle, and has different torsion variation effects.
Certainly, the drawing those shown is preferred embodiment of the present utility model only, and the utility model does not limit claim with this.In every case according to the utility model technological thought, the friction area between utilization friction lug and the vertical surface changes the torsion with the adjustment pivot device, and the simple and easy or equivalent variation of being done still belongs among the utility model scope of patent protection.
Claims (7)
1. one kind changes the pivot device that friction area is adjusted torsion, is arranged in the folding electronic product with a loam cake and a body; It is characterized in that comprising:
One rotation bolster is connected with this loam cake;
One extends and the rotating shaft of together rotating from this rotation bolster, has a non-circular axial region at least;
One fixing bolster is connected with this body, has a vertical surface, and this vertical surface is provided with a circular axis hole that passes for this axial region;
A pair of concavo-convex wheel construction is arranged on this axial region, and this is provided with recess and the projection that the auto-closing function is provided to concavo-convex surface of taking turns contact;
On one group of axial region that is arranged at this rotating shaft so that the elastic element of axial elastic force to be provided;
Thereby one be arranged at this rotating shaft relatively terminal so that this group elastic element of another of this rotation bolster, this vertical surface and this to concavo-convex wheel construction pressure type be incorporated into make in this rotating shaft this rotation bolster relative this fixedly bolster rotate to the fixing device that unspecified angle all can be located;
At least one special-shaped reentrant part is arranged on the surface of contact of arbitrary element of this pressure type combination; And
The contact of at least one pressure type is arranged at the side of this abnormity reentrant part and can covers this abnormity reentrant part when together rotating and rotating with this axial region in a certain angular range and change area of contact with this vertical surface to adjust the friction lug that torsion changes in this angular range.
2. adjust the pivot device of torsion according to the described change friction area of claim 1, it is characterized in that this abnormity reentrant part upwards has different width in the Different Diameter of this axial region.
3. adjust the pivot device of torsion according to the described change friction area of claim 1, it is characterized in that this abnormity reentrant part is a pair of, be arranged on the recessed wheel side, and that this friction lug is all is a pair of, be the protuberance contact surface of this cam.
4. one kind changes the pivot device that friction area is adjusted torsion, is arranged in the folding electronic product with a loam cake and a body; It is characterized in that comprising:
One rotation bolster is connected with this loam cake;
One extends and the rotating shaft of together rotating from this rotation bolster, has a non-circular axial region at least;
One fixing bolster is connected with this body, has a vertical surface, and this vertical surface is provided with a circular axis hole that passes for this axial region, and is provided with a special-shaped reentrant part in this vertical surface, and this abnormity reentrant part upwards has different width in the Different Diameter of this circle axis hole;
One contact is arranged at that this vertical surface has the side of this abnormity reentrant part and can covers this abnormity reentrant part when together rotating and rotating with this axial region in a certain angular range and change area of contact with this vertical surface to adjust the friction lug that torsion changes in this angular range;
A pair of concavo-convex wheel construction is arranged in this rotating shaft, and this is provided with recess and the projection that the auto-closing function is provided to concavo-convex surface of taking turns contact;
On one group of axial region that is arranged at this rotating shaft so that the elastic element of axial elastic force to be provided; And
Thereby one be arranged at this rotating shaft relatively terminal so that this group elastic element of another of this rotation bolster, this vertical surface, this to concavo-convex wheel construction and this friction lug pressure type be incorporated into make in this rotating shaft this rotation bolster relative this fixedly bolster rotate to the fixing device that unspecified angle all can be located.
5. adjust the pivot device of torsion according to the described change friction area of claim 4, it is characterized in that, the radial width of this abnormity reentrant part is widened with radial angle gradually from minimum; Thereby and this friction lug be one from this rotation bolster relatively fixedly bolster rotarily open the back earlier with the smallest radial width contact earlier of this abnormity reentrant part and with the relative fixedly bolster of this rotation bolster rotarily open angle increase with this abnormity reentrant part make torsion decrescence to reach the fanning strip of the laborsaving function of unlatching decrescence less than the friction area that makes this friction lug and this vertical surface that contacts of width greatly directly.
6. adjust the pivot device of torsion according to the described change friction area of claim 5, it is characterized in that, further be provided with one on this vertical surface when this rotation bolster relatively should fixedly bolster rotarily opens to maximum opening angle and the inconsistent locating bump of a lateral margin of this friction lug.
7. adjust the pivot device of torsion according to the described change friction area of claim 4, it is characterized in that, the recessed of this concavo-convex wheel construction taken turns the another side of being located on this vertical surface that has this locating bump relatively, and this cam has a non-circular axis hole that together rotates for axial region passes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205379492U CN201818641U (en) | 2010-09-21 | 2010-09-21 | Pivot device capable of changing friction area and adjusting torque force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205379492U CN201818641U (en) | 2010-09-21 | 2010-09-21 | Pivot device capable of changing friction area and adjusting torque force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201818641U true CN201818641U (en) | 2011-05-04 |
Family
ID=43916597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205379492U Expired - Lifetime CN201818641U (en) | 2010-09-21 | 2010-09-21 | Pivot device capable of changing friction area and adjusting torque force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201818641U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103984409A (en) * | 2013-02-12 | 2014-08-13 | 联想（新加坡）私人有限公司 | Devices and methods for opening a computing device with a user cue |
| CN106125831A (en) * | 2016-06-17 | 2016-11-16 | 联想(北京)有限公司 | Rotational structure and electronic equipment |
-
2010
- 2010-09-21 CN CN2010205379492U patent/CN201818641U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103984409A (en) * | 2013-02-12 | 2014-08-13 | 联想（新加坡）私人有限公司 | Devices and methods for opening a computing device with a user cue |
| CN103984409B (en) * | 2013-02-12 | 2017-08-29 | 联想（新加坡）私人有限公司 | The apparatus and method that there is user to point out for opening computing device |
| CN106125831A (en) * | 2016-06-17 | 2016-11-16 | 联想(北京)有限公司 | Rotational structure and electronic equipment |
| CN106125831B (en) * | 2016-06-17 | 2019-04-23 | 联想(北京)有限公司 | Rotational structure and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: KUNSHAN GANGYI PRECISION ELECTRON TECHNOLOGY CO., LTD. Assignor: Lianhong Technology Co., Ltd. Contract record no.: 2013990000321 Denomination of utility model: Pivot device capable of changing friction area and adjusting torque force Granted publication date: 20110504 License type: Exclusive License Record date: 20130614 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: KUNSHAN GANGYI PRECISION ELECTRON TECHNOLOGY CO., LTD. Assignor: Lianhong Technology Co., Ltd. Contract record no.: 2013990000321 Denomination of utility model: Pivot device capable of changing friction area and adjusting torque force Granted publication date: 20110504 License type: Exclusive License Record date: 20130614 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110504 |