CN201251728Y - Cam device with prolonged service life - Google Patents
Cam device with prolonged service life Download PDFInfo
- Publication number
- CN201251728Y CN201251728Y CNU2008201372228U CN200820137222U CN201251728Y CN 201251728 Y CN201251728 Y CN 201251728Y CN U2008201372228 U CNU2008201372228 U CN U2008201372228U CN 200820137222 U CN200820137222 U CN 200820137222U CN 201251728 Y CN201251728 Y CN 201251728Y
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- China
- Prior art keywords
- concave surface
- plane
- inner ring
- outer ring
- cam gear
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- Expired - Lifetime
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Abstract
The utility model relates to a cam device with prolonged service life, which comprises a first body and a second body. The first body is provided with a first plane which is provided with an inner ring and an outer ring, an inner ring concavity is arranged on the inner ring of the first plane, and an outer ring concavity is arranged on the outer ring of the first plane; a first concavity and a second concavity are correspondingly formed between the inner ring concavity and the outer ring concavity of the first plane, an incline plane is formed between the first plane and each concavity, and a round angle is formed at a joint between each concavity and the first plane. The second body is provided with a second plane so as to be matched with the first plane of the first body, the second plane is provided with an inner ring convexity, an outer ring convexity, a first convexity and a second convexity corresponding to the concavities, an inclined plane is formed between the second plane and each convexity, and a round angle is formed at a joint between each convexity and the second plane.
Description
Technical field
The utility model relates to a kind of pivot structure of notebook computer.
Background technology
Present common on the market electronic product, for example mobile computer in order to reach the effect of folding, so be equiped with pivot between main frame and screen, launches or closed function with respect to main frame so that screen to be provided between main frame and the screen.
And because the progress of science and technology, the mobile computer quality requirements of famous brand name is all quite high, and in order to safeguard and promote goodwill, each parts of mobile computer all need possess certain serviceable life, and for the regular screen of opening repeatedly of needs, pivot is exactly a pivotal player.
With reference to No. 6862779 " Hinge with an anti-bump " patent case of United States Patent (USP), convex with projection on the locating ring of adjustment group, be concaved with short slot and described set collar contacts the one side of described keeper, described short slot alternative is held the projection of described locating ring and is formed the location.
Be easy to generate the situation of spring vibrations during the pivot of existing structure, because the pressure the when projection of described locating ring and described set collar and short slot need bear all pivots, usually stability is not enough and produce the situation of spring vibrations when make pivoting, and more the trouble be, armature apparatus need bear very big pressure makes its serviceable life also permanent inadequately, the pivot damage is the thing that quite bothers concerning the consumer, for the problems referred to above, urgently awaits improvement.
Therefore, the present invention's problem of wanting to get rid of or alleviating prior art at least and met with.
Summary of the invention
At the deficiencies in the prior art, the purpose of this utility model is: a kind of cam gear that increases the service life is provided, solves existing armature apparatus short problem in serviceable life.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of cam gear that increases the service life is characterized in that, includes:
One first body, it has one first plane, described first plane has an inner ring and an outer ring, an inner ring concave surface is established at described inner ring in described first plane, an outer ring concave surface is established on described first plane in described outer ring, described inner ring concave surface and described outer ring concave surface are positioned opposite to each other, described first plane forms relative one first concave surface and one second concave surface between described inner ring concave surface and described outer ring concave surface, described first concave surface and described second concave surface are extended to the concave surface of periphery circle by Zhou Yuan in described first body, the central angle of described first concave surface and described second concave surface is less than the central angle of inner ring concave surface, the central angle of described first concave surface and described second concave surface is also less than the central angle of outer ring concave surface, respectively form an inclined-plane between described first plane and each concave surface, each inclined-plane and first plane symphyses form the fillet shape;
One second body, first plane that is matched with described first body has one second plane, and described second body and described first body can produce relative rotation relationship, an inner ring convex surface, an outer ring convex surface, one first convex surface and one second convex surface are established with respect to each concave surface in second plane, respectively form an inclined-plane between described second plane and each convex surface, each inclined-plane and described second plane symphyses form the fillet shape.
Compared with prior art, adopt the advantage that the utlity model has of technique scheme to be:
1. when the fillet of first body and second body contacts, first concave surface and second concave surface extend to the concave surface that the periphery circle is the total cross-section formula for the interior Zhou Yuan by first body, so fillet has the contact area of total cross-section formula, make inner ring concave surface and outer ring concave surface can effectively share pressure on the fillet of first concave surface and second concave surface, to increase the stable of cam gear and to increase the service life.
2. first body and second body rely on interior circle and cylindrical to form in one an outer relation, and the width of first concave surface and second concave surface is less than the width of inner ring concave surface and outer ring concave surface, make cam gear can revolve three-sixth turn after involution to original position.
Description of drawings
Fig. 1 is the stereo appearance figure of the utility model cam gear;
Fig. 2 A is the planimetric map of the utility model cam gear first body;
Fig. 2 B is the planimetric map of the utility model cam gear second body;
Fig. 3 is the user mode figure of the utility model cam gear;
Fig. 4 is the vertical view of the utility model Fig. 3;
Fig. 5 is the front view of the utility model Fig. 3;
Fig. 6 is the sectional view that the utility model Fig. 5 is got along the 6-6 profile line;
Fig. 7 is the continuity of Fig. 4, and the expression cam gear turns to the constitutional diagram of fillet;
Fig. 8 is the continuity of Fig. 5, and the expression cam gear turns to the constitutional diagram of fillet;
Fig. 9 is the sectional view that the utility model Fig. 8 is got along the 9-9 profile line;
Figure 10 is the continuity of the utility model Fig. 7, and the expression cam gear turns to the constitutional diagram of location;
Figure 11 is the continuity of the utility model Fig. 8, and the expression cam gear turns to the constitutional diagram of location;
Figure 12 is the sectional view that the utility model Figure 11 is got along the 12-12 profile line;
Figure 13 is the synoptic diagram that first body of the utility model Fig. 5 cooperates with second body;
Figure 14 is the synoptic diagram that first body of the utility model Fig. 8 cooperates with second body;
Figure 15 is the synoptic diagram that first body of the utility model Figure 11 cooperates with second body.
Description of reference numerals: 2 pedestals; 3 axostylus axostyles; 4 elastic devices; 10 cam gears; 20 first bodies; 21 axis holes; 22 inner rings; 23 outer rings; 24 inner ring concave surfaces; 241 inclined-planes; 242 fillets; 25 outer ring concave surfaces; 251 inclined-planes; 252 fillets; 26 first concave surfaces; 261 inclined-planes; 262 fillets; 27 second concave surfaces; 271 inclined-planes; 272 fillets; 28 first planes; 201 fixed parts; 30 second bodies; 31 embedding holes; 32 inner rings; 33 outer rings; 34 inner ring convex surfaces; 341 inclined-planes; 342 fillets; 35 outer ring convex surfaces; 351 inclined-planes; 352 fillets; 36 first convex surfaces; 361 inclined-planes; 362 fillets; 37 second convex surfaces; 371 inclined-planes; 372 fillets; 38 second planes.
Embodiment
The technology that relevant the utility model adopted, means and effect thereof, lift a preferred embodiment now and cooperate graphic detailed description as after, this only for the usefulness of explanation, is not subjected to the restriction of this kind structure in patented claim.
Please refer to Fig. 1 and Fig. 2 A, Fig. 2 B, three-dimensional exploded view and planimetric map for the utility model cam gear, cam gear 10 of the present utility model includes one first body 20 and one second body 30, described second body 30 is sides that are matched with described first body 20, and described second body 30 can produce relative rotation relationship each other with described first body 20; Wherein:
Described first body 20 central authorities offer an axis hole 21, first body 20 has one first plane 28, first plane 28 is divided into an inner ring 22 and an outer ring 23 by interior Zhou Yuanzhi periphery circle, first plane 28 is arranged with a fan-shaped inner ring concave surface 24 by inner ring 22, first plane 28 is arranged with a fan-shaped outer ring concave surface 25 by 23 of outer rings, inner ring concave surface 24 and outer ring concave surface 25 are formed at inner ring 22 and outer ring 23 respectively with the central angle that equates, and inner ring 22 and outer ring 23 are to be oppositely arranged and to be formed at respectively inner ring 22 and outer ring 23, so the sectional area of inner ring concave surface 24 is the sectional areas less than outer ring concave surface 25, first plane 28 forms fan-shaped first concave surface 26 and second a fan-shaped concave surface 27 between inner ring concave surface 24 and outer ring concave surface 25, first concave surface 26 and second concave surface 27 are to have equal central angle and be oppositely arranged, first concave surface 26 and second concave surface 27 extend to the concave surface that the periphery circle is the total cross-section formula by the interior Zhou Yuan of first body 20, and the central angle of first concave surface 26 and second concave surface 27 is less than the central angle of inner ring concave surface 24, inner ring concave surface 24, first concave surface 26, outer ring concave surface 25 and the annular arrangements of second concave surface 27 order are in a side of first body 20, and first plane 28 is used for butt second body 30.
The inner ring concave surface 24 of first body 20 respectively forms an inclined-plane 241 in the both sides on the inner ring 22 and first plane 28, two inclined- planes 241 and 28 junctions, first plane form fillet 242 shapes, so that second body 30 by inner ring concave surface 24 activity to the first planes 28 or by 28 activities of first plane steady and smooth more during to inner ring concave surface 24, avoid taking place between second body 30 and first body 20 shortcoming of spring vibrations.
The both sides on outer ring concave surface 25 23 and first plane 28 in the outer ring of first body 20 respectively form an inclined-plane 251, two inclined- planes 251 and 28 junctions, first plane form fillet 252 shapes, so that second body 30 by outer ring concave surface 25 activity to the first planes 28 or by 28 activities of first plane steady and smooth more during to outer ring concave surface 25, avoid taking place between second body 30 and first body 20 shortcoming of spring vibrations.
First concave surface 26 of first body 20 and the both sides between first plane 28 respectively form an inclined-plane 261, two inclined- planes 261 and 28 junctions, first plane form fillet 262 shapes, so that second body 30 steady and smooth more during, avoid taking place between second body 30 and first body 20 shortcoming of spring vibrations by first concave surface, 26 activity to the first planes 28 or by first plane, 28 activity to the first concave surfaces 26.
Second concave surface 27 of first body 20 and the both sides between first plane 28 respectively form an inclined-plane 271, two inclined- planes 271 and 28 junctions, first plane form fillet 272 shapes, so that second body 30 steady and smooth more during, avoid taking place between second body 30 and first body 20 shortcoming of spring vibrations by second concave surface, 27 activity to the first planes 28 or by first plane, 28 activity to the second concave surfaces 27.
Second body, 30 central authorities offer an embedding hole 31, second body 30 is that one second plane 38 is established on first plane 28 that is matched with first body 20, second plane 38 of second body 30 also has an inner ring 32 and an outer ring 33, second plane 38 cooperates inner ring concave surface 24, outer ring concave surface 25, first concave surface 26 and second concave surface 27 of first body 20 to form an inner ring convex surface 34, an outer ring convex surface 35, one first convex surface 36 and one second convex surface 37, and these convex surfaces 34,35,36,37 are used for butt first body 20.
The inner ring convex surface 34 of second body 30 respectively forms an inclined-plane 341 in the both sides on the inner ring 32 and second plane 38, two inclined-planes 341 form fillet 342 shapes with inner ring convex surface 34 junctions, so that rotate more steady and smooth between second body 30 and first body 20, avoid taking place between second body 30 and first body 20 shortcoming of spring vibrations.
The both sides on outer ring convex surface 35 33 and second plane 38 in the outer ring of second body 30 respectively form an inclined-plane 351, two inclined-planes 351 form fillet 352 shapes with outer ring convex surface 35 junctions, so that rotate more steady and smooth between second body 30 and first body 20, avoid taking place between second body 30 and first body 20 shortcoming of spring vibrations.
Respectively form an inclined-plane 361 between first convex surface 36 of second body 30 and second plane 38, two inclined-planes 361 and first convex surface, 36 junctions form fillet 362 shapes, so that rotate more steady and smooth between second body 30 and first body 20, avoid taking place between second body 30 and first body 20 shortcoming of spring vibrations.
Respectively form an inclined-plane 371 between second convex surface 37 of second body 30 and second plane 38, two inclined-planes 371 and second convex surface, 37 junctions form fillet 372 shapes, so that rotate more steady and smooth between second body 30 and first body 20, avoid taking place between second body 30 and first body 20 shortcoming of spring vibrations.
Please refer to Fig. 3, user mode figure for cam gear, cam gear 10 of the present utility model is to use the pivot in electronic product, first body 20 laterally extend a fixed part 201 (as shown in Figure 1), on the pedestal 2 that is incorporated into pivot, first body 20 is to be hubbed on the axostylus axostyle 3,30 of second bodies are embedded on axostylus axostyle 3 by axostylus axostyle 3 driven rotary, and first body 20 and second body 30 are to match to dock also can produce relative rotation relationship, and axostylus axostyle 3 also is provided with elastic device 4 and compresses the power of location so that cam gear 10 to be provided.
Please refer to Fig. 4 to Fig. 6, this moment, first body 20 and second body 30 of cam gear 10 were closed state, this moment inner ring convex surface 34 and 24 driving fits of inner ring concave surface, outer ring convex surface 35 and 25 driving fits of outer ring concave surface, first convex surface 36 and first concave surface 26 (as shown in Figure 1) driving fit, second convex surface 37 and second concave surface 27 (as shown in Figure 1) driving fit.
Please refer to Fig. 7 to Fig. 9, and simultaneously with reference to Fig. 1, turn to the contacted constitutional diagram of fillet of the fillet and second body of first body for cam gear, when first body 20 and second body 30 relatively rotate, the inclined-plane 241,251 of inner ring concave surface 24 and outer ring concave surface 25 can contact the inclined-plane 341,351 of outer ring concave surface 34 and outer ring concave surface 35, the inclined-plane 261,271 of first concave surface 26 and second concave surface 27 also can contact the inclined-plane 361,371 of first convex surface 36 and second convex surface 37 simultaneously, to rotate smoothly.When turning to inclined-plane terminal, the fillet 242 of inner ring concave surface 24 and outer ring concave surface 25,252 can contact the fillet 342 of inner ring convex surface 34 and outer ring convex surface 35,352, the fillet 262 of while first concave surface 26 and second concave surface 27,272 also can contact the inclined-plane 362 of first convex surface 36 and second convex surface 37,372, cam gear 10 relies on the fillet 262 of first concave surface 26 and second concave surface 27 and first convex surface 36 and second convex surface 37,272,362,372 contact, because first concave surface 26, second concave surface 27 extends to the concave surface that the periphery circle is the total cross-section formula for the interior Zhou Yuan by first body 20, so fillet 262,272 have the contact area of total cross-section formula, make inner ring concave surface 24 and outer ring concave surface 25 can effectively share the fillet 262 of pressure at first concave surface 26 and second concave surface 27, on 272, so, cam gear 10 not only effectively increases the stability of rotating, and more can increase the serviceable life of cam gear 10.
Other first concave surface 26 adds that the surface of contact of second concave surface 27 is about inner ring concave surface 24 and adds 2 times of outer ring concave surface 25 surface of contact, so cam gear 10 can bear three times of script pressure approximately, so rely on the design of first concave surface 26 and second concave surface 27, can increase cam gear 10 about three times serviceable life.
Please refer to Figure 10 to Figure 12, turn to the constitutional diagram of unlatching for cam gear 10, this moment first body 20 first plane 28 can contact on the inner ring convex surface 34 of second body, outer ring convex surface 35, first convex surface 36, second convex surface 37, can keep the stable opening of pivot.
Please refer to Figure 13 to Figure 15, be respectively the synoptic diagram that Fig. 5, Fig. 8 and Figure 11 first body 20 and second body 30 cooperate, and please be simultaneously with reference to Fig. 1, first body 20 and second body 30 are when closed state, first plane 28 and second plane 38 join, and each concave surface 24,25,26,27 and each convex surface 34,35,36,37 join.When cam gear 10 turned to fillet, the fillet 242,252,262,272 of first body 20 can join with the fillet 342,352,362,372 of second body 30.When cam gear 10 turned to opening, docked with each convex surface 34,35,36,37 on first body, 20 first planes 28.
Can summarize with regard to the above and the utlity model has following advantage:
1. the cam gear that increases the service life of the utility model, the wherein fillet of the first noumenon and second body During contact, first concave surface and second concave surface are total cross-section for the interior Zhou Yuan by the first noumenon extends to the periphery circle The concave surface of formula is so fillet has the contact area of total cross-section formula, so that inner ring concave surface and outer ring concave surface energy Effective cost share responsibility pressure on the fillet of first concave surface and second concave surface, with the stability that increases cam gear with And increase the service life.
2. the cam gear that increases the service life of the utility model is in wherein the first noumenon and second body rely on Circle and cylindrical form one interior one outer relation, and the width of first concave surface and second concave surface is less than inner ring The width of concave surface and outer ring concave surface so that cam gear can rotating 360 degrees after involution to original position.
More than explanation is just illustrative for the utility model, and nonrestrictive, the common skill in this area Art personnel understand, and in the situation that does not break away from the spirit and scope that claim limits, can make many repairing Change, change or equivalence, but all will fall within the protection domain of the present utility model.
Claims (7)
1. a cam gear that increases the service life is characterized in that, includes:
One first body, it has one first plane, described first plane has an inner ring and an outer ring, an inner ring concave surface is established at described inner ring in described first plane, an outer ring concave surface is established on described first plane in described outer ring, described inner ring concave surface and described outer ring concave surface are positioned opposite to each other, described first plane forms relative one first concave surface and one second concave surface between described inner ring concave surface and described outer ring concave surface, described first concave surface and described second concave surface are extended to the concave surface of periphery circle by Zhou Yuan in described first body, the central angle of described first concave surface and described second concave surface is less than the central angle of inner ring concave surface, the central angle of described first concave surface and described second concave surface is also less than the central angle of outer ring concave surface, respectively form an inclined-plane between described first plane and each concave surface, each inclined-plane and first plane symphyses form the fillet shape;
One second body, first plane that is matched with described first body has one second plane, and described second body and described first body can produce relative rotation relationship, an inner ring convex surface, an outer ring convex surface, one first convex surface and one second convex surface are established with respect to each concave surface in second plane, respectively form an inclined-plane between described second plane and each convex surface, each inclined-plane and described second plane symphyses form the fillet shape.
2. the cam gear that increases the service life according to claim 1, it is characterized in that: the central angle of described inner ring concave surface and described outer ring concave surface equates, and described inner ring concave surface and described outer ring concave surface are to be formed at described inner ring and described outer ring toward each other and respectively.
3. the cam gear that increases the service life according to claim 1 is characterized in that: the central angle of described first concave surface and described second concave surface equates, and described first concave surface and described second concave surface are symmetrical settings.
4. the cam gear that increases the service life according to claim 3 is characterized in that: the order annular arrangement of described inner ring concave surface, described first concave surface, described outer ring concave surface and described second concave surface is in the one side of described first body.
5. the cam gear that increases the service life according to claim 4 is characterized in that: the central angle of described first concave surface and described second concave surface is less than the central angle of described inner ring concave surface.
6. the cam gear that increases the service life according to claim 1, it is characterized in that: described first body center is offered an axis hole, on the axostylus axostyle that is hubbed on pivot, described first body laterally extends a fixed part, for the pedestal that is incorporated into pivot, described second body center is offered an embedding hole, to be embedded the axostylus axostyle at pivot, also establish an elastic device on the axostylus axostyle, described elastic device pushing and pressing cam gear.
7. the cam gear that increases the service life according to claim 1 is characterized in that: described each concave surface is the shape that is fan-shaped, and each concave surface is all formed with the center of circle of described first body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201372228U CN201251728Y (en) | 2008-09-22 | 2008-09-22 | Cam device with prolonged service life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201372228U CN201251728Y (en) | 2008-09-22 | 2008-09-22 | Cam device with prolonged service life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201251728Y true CN201251728Y (en) | 2009-06-03 |
Family
ID=40747400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201372228U Expired - Lifetime CN201251728Y (en) | 2008-09-22 | 2008-09-22 | Cam device with prolonged service life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201251728Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832530A (en) * | 2014-02-12 | 2015-08-12 | 联想(北京)有限公司 | Electronic device |
-
2008
- 2008-09-22 CN CNU2008201372228U patent/CN201251728Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832530A (en) * | 2014-02-12 | 2015-08-12 | 联想(北京)有限公司 | Electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090603 |