CN102681137A - Stationary cam cylinder - Google Patents
Stationary cam cylinder Download PDFInfo
- Publication number
- CN102681137A CN102681137A CN2011100646994A CN201110064699A CN102681137A CN 102681137 A CN102681137 A CN 102681137A CN 2011100646994 A CN2011100646994 A CN 2011100646994A CN 201110064699 A CN201110064699 A CN 201110064699A CN 102681137 A CN102681137 A CN 102681137A
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- groove
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- groove section
- cam tube
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- 210000002421 cell wall Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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- Lens Barrels (AREA)
Abstract
The invention relates to a stationary cam cylinder which comprises a cylinder body, a guide slot, a first action slot and a second action slot, wherein the guide slot is formed on the cylinder body; the first action slot is formed on the cylinder body and comprises a first slot section and a second slot section which are communicated with each other; the first slot section is staggered with the guide slot; the first slot section of the first action slot is wider than the second slot section of the first action slot; the second action slot is formed on the cylinder body and also comprises a first slot section and a second slot section which are communicated with each other; the second slot section of the second action slot is staggered with the guide slot; the second slot section of the second action slot is wider than the first slot section of the second action slot.
Description
Technical field
The present invention is relevant with lens construction, more detailed is meant a kind of stationary cam tube.
Background technology
The used stationary cam tube of known camera lens module has the guide channel that several are equally spaced usually on its barrel, and several staggered and wide start grooves that are not equally spaced with this guide channel respectively respectively.The lens barrel of this camera lens module then has several protruding axles and combines with these start grooves, uses making this lens drum can utilize those start grooves to move, and makes the flexible purpose that reaches focusing or zoom of camera lens.The purpose that the design of these guide channels is not equally spaced be when wherein a protruding axle and when unsettled through the staggered place of this start groove and this guide channel; Several protruding axles will combine with corresponding start groove in addition, avoid these protruding axles to revolve sky simultaneously and cause loosening or stuck purpose and can reach.
Yet; See also Fig. 1; This protruding axle 200 regular meeting when moving causes the mobile rail mark of this protruding axle 200 to be easy to generate skew, and causes this protruding axle 200 to advance according to original designed path because of a little error that each member of camera lens module produces when making or assemble; Make when this protruding axle 200 moves through the staggered place of this start groove 300 and this guide channel 400; And easy and these guide channel 400 side swipes, this will not only can cause the different sound of the flexible generation of camera lens, more likely cause protruding axle 200 shakes or the generation of stuck situation.
Comprehensively the above can learn that the design of known fixed cam canister is not attained perfect yet, and the part that still haves much room for improvement.
Summary of the invention
The technical matters that the present invention will solve is, different sound or stuck defective arranged when the stationary cam tube can cause the camera lens start in the prior art, and a kind of stationary cam tube is provided, and in the time of can not causing camera lens focusing or zoom different sound do not arranged or has stuck situation to take place.
The technical scheme that the present invention is adopted for its technical matters of solution is: a kind of stationary cam tube is provided; In order to combine with rotating cam tube and lens barrel; This rotating cam tube has at least one first protruding axle and at least one second protruding axle, and this lens barrel has and has a projection at least.This stationary cam tube includes stack shell, at least one guide channel, at least one first start groove and at least one second start groove, and wherein, this stack shell has first end; This guide channel is formed on this stack shell, and is formed with first opening in this first end; This first start groove is formed on this stack shell, and is formed with second opening in this first end; This first start groove includes the first groove section and the second groove section that is connected, and the first groove section of this first start groove and this guide channel are staggered, and the groove width of the first groove section of this first start groove is greater than the groove width of the second groove section of this first start groove; This second start groove is formed on this stack shell, and is formed with the 3rd opening in this first end; This second start groove includes the first groove section and the second groove section that is connected, and the second groove section of this second start groove and this guide channel are staggered, and the groove width of the second groove section of this second start groove is greater than the groove width of the first groove section of this second start groove.
In addition, the projection of this lens barrel is arranged in this guide channel; This first protruding axle of this rotating cam tube is arranged in this first start groove, and this second protruding axle is arranged in this second start groove; When this first protruding axle was positioned at the first groove section of this first start groove, this second protruding axle then was positioned at the first groove section of this second start groove; When this second protruding axle was positioned at the second groove section of this second start groove, this first protruding axle then was positioned at the second groove section of this first start groove.
The stationary cam tube of embodiment of the present invention has following beneficial effect: when this first protruding axle is positioned at this first groove section, this second protruding axle will be positioned at this first groove section; So; Respectively this first protruding axle carries out zoom or focusing and during staggered place through this first groove section and this guide channel at this camera lens module; Because of the groove width of these first groove sections is bigger, and can avoid respectively this first protruding axle and this guide channel interference, the pass that cooperates of these first groove sections and these second protruding axles then helps this first protruding axle when mobile, to be difficult for the generation skew; Make this first protruding axle waltz through the junction of this guide channel and this first start groove, and different sound or stuck situation can not take place.Identical ground, when this second protruding axle was positioned at this second groove section, this first protruding axle was positioned at this second groove section; So promptly, respectively this second protruding axle can not interfered with this guide channel because of the matching relationship of this first protruding axle and this second groove section when passing through the staggered place of this second groove section and this guide channel equally.
Description of drawings
Fig. 1 is a known fixed cam canister inwall planimetric map.
Fig. 2 is a camera lens module stereographic map provided by the present invention.
Fig. 3 is a stationary cam tube stereographic map of the present invention.
Fig. 4 and Fig. 5 are stationary cam drum outer wall planimetric map of the present invention.
Fig. 6 is the design diagram of the first start groove of the present invention and the second start groove.
Fig. 7 is another design diagram of the first start groove of the present invention and the second start groove.
Embodiment
For being illustrated more clearly in the present invention, lift now that preferred embodiment and conjunction with figs. specify as after.
See also Fig. 2, the camera lens module 100 of preferred embodiment of the present invention includes stationary cam tube 1, lens barrel 2 and rotating cam tube 3.Wherein:
Continuous consult Fig. 3 to Fig. 5, this stationary cam tube 1 includes stack shell 10, and is located at three guide channels 20 on these stack shell 10 inwalls, three the first start grooves 30 and three second start grooves 40.This stack shell 10 has the first end 10a, and respectively this guide channel 20 is formed with first opening 21 in this first end 10a.In addition, in present embodiment, respectively this guide channel 20 directly advances groove, but not as limit, the also cell body of other kenel of this guide channel 20 in design.
These first start grooves 30 run through the barrel of this stack shell 10, and respectively this first start groove 30 includes the first groove section 31 and the second groove section 32 that is connected, and respectively this first start groove 30 is formed with second opening 33 in this first end 10a.Wherein, this first groove section 31 is communicated with this second opening 33, and this first groove section 31 is staggered with corresponding guide channel 20, and in addition, the groove width D1 of this first groove section 31 is greater than the groove width D2 of this second groove section 32.
Respectively this second start groove 40 includes the first groove section 41 and the second groove section 42 that is connected, and respectively this second start groove 40 is formed with the 3rd opening 43 in this first end 10a.Wherein, this first groove section 41 is communicated with the 3rd opening 43, and this second groove section 42 is staggered with corresponding guide channel 20, and in addition, the groove width d1 of this first groove section 41 is less than the groove width d2 of this second groove section 42.
This lens barrel 2 is located in this stationary cam tube 1, and in be provided with plural pieces eyeglass (figure do not show).This lens barrel 2 is provided with three projection 2a; And respectively first opening 21 of this projection 2a through correspondence is located in respectively in this guide channel 20; So that this lens barrel 2 receives these guide channel 20 restrictions and moves along straight line; And limit this lens barrel according to this and rotate, use the purpose that reaches focusing or zoom, and can avoid the optical centre of this camera lens module 100 to produce skew simultaneously.
This rotating cam tube 3 is located in this stationary cam tube 1 equally, and between this lens barrel 2 and this stationary cam tube 1.This second inner core 3 is provided with three first protruding 3a and three second protruding 3b; Respectively second opening 33 of this first protruding 3a through correspondence is located in respectively in this first start groove 30, respectively this second protruding 3b then the 3rd opening 43 through correspondence be located in respectively in this second start groove 40.In the present embodiment; The purpose that the first start groove 30 of this stationary cam tube 1 runs through these stack shell 10 barrels is to supply these first protruding 3a to be connected with motor (figure does not show) respectively; And make this rotating cam tube 3 driven by motor and rotate, the purpose that the second start groove 40 does not run through these stack shell 10 barrels then is that be to rotate in order to auxiliary this rotating cam tube 3 can be more smooth and easy.
By this, see also Fig. 4, when this first protruding 3a is positioned at this first groove section 31, this second protruding 3b will be positioned at this first groove section 41; So; Respectively this first protruding 3a carries out zoom or focusing and during staggered place through this first groove section 31 and this guide channel 20 at this camera lens module 100; Because of the groove width D1 of these first groove sections 31 bigger; And can avoid respectively this first protruding 3a and 20 interference of this guide channel; These first groove sections 41 then help this first protruding 3a when mobile, to be difficult for producing skew with the pass that cooperates of these second protruding 3b, and make this first protruding 3a waltz through the junction of this guide channel 20 and this first start groove 30, and different sound or stuck situation can not take place.Identical ground sees also Fig. 5, and when this second protruding 3b was positioned at this second groove section 42, this first protruding 3a was positioned at this second groove section 32; So promptly, respectively this second protruding 3b can not interfere with this guide channel 20 because of the matching relationship of this first protruding 3a and this second groove section 32 when passing through the staggered place of this second groove section 42 and this guide channel 20 equally.
In addition; See also Fig. 6; These start groove 30,40 designs in the present embodiment are after first protruding 3a of this rotating cam tube 3 gets into these second groove section, 32 1 preset distances by this first groove section 31, and this second protruding 3b just gets into this second groove section 42 by this first groove section 41.The purpose of above-mentioned design is to make this first protruding 3a and this second protruding 3b side by side to be the state of close fit with this first start groove 30, this second start groove 40, and can be more level and smooth when making this first protruding 3a got into these second groove sections or this second protruding 3b and got into these first groove sections 41 by this second groove section 42 by this first groove section 31.Certainly; These start grooves 30,40 also can be as shown in Figure 7 in design; When first protruding 3a of this rotating cam tube 3 got into this second groove section 31 by this first groove section 31 when; This second protruding 3b gets into this second groove section 42 by this first groove section 41, can reach the present invention equally and prevent the different sound or the purpose of stuck generation.
Mandatory declaration be; Because the matching relationship between the above-mentioned first start groove 30, the second start groove 40 and first protruding 3a, second protruding 3b; Be the contact relation between protruding axle periphery wall and start groove cell wall, thus above-mentioned groove width D1, D2, d1, d2, in the present embodiment; Be meant respectively on these start groove 30,40 1 cell walls in fact respectively this protruding axle 3a, 3b produced the guide function position, to the width at the corresponding position of another cell wall.In general design; The flute profile of these start grooves 30,40 is a dovetail; And these protruding axles are the cone shape of corresponding cooperation; Therefore, above-mentioned groove width D1, D2, d1, d2 possibly be the breadth extremes between two cell walls of these start grooves 30,40, also possibly be the width between minimum widith or any one position of two cell walls.
In addition, the quantity of the first start groove of the present invention and the second start groove is not exceeded with three, and also can design the barrel that the first start groove and the second start groove all run through stack shell.Moreover guide channel of the present invention and start groove are not limited in the inwall that is formed on the stationary cam tube, also can be formed on the outer wall of stationary cam tube.Again, as long as the groove width of these start grooves and guide channel staggered place greater than the groove width of these other groove sections of start groove, no matter it uses how many bar guide channels or how many bar start grooves, also belongs to another form of implementation of the present invention.
The above is merely the preferable possible embodiments of the present invention, and equivalent structure that all application instructions of the present invention and claim are done and method for making change, and ought to be included in the claim of the present invention.
Claims (8)
1. a stationary cam tube in order to combine with rotating cam tube and lens barrel, is characterized in that, this rotating cam tube has at least one first protruding axle and at least one second protruding axle, and this lens barrel has and have a projection at least, and this stationary cam tube includes:
Stack shell has first end;
At least one guide channel is formed on this stack shell, and is formed with first opening in this first end;
At least one first start groove is formed on this stack shell, and is formed with second opening in this first end; This first start groove includes the first groove section and the second groove section that is connected, and the first groove section of this first start groove and this guide channel are staggered, and the groove width of the first groove section of this first start groove is greater than the groove width of the second groove section of this first start groove;
At least one second start groove is formed on this stack shell, and is formed with the 3rd opening in this first end; This second start groove includes the first groove section and the second groove section that is connected, and the second groove section of this second start groove and this guide channel are staggered, and the groove width of the second groove section of this second start groove is greater than the groove width of the first groove section of this second start groove;
In addition, the projection of this lens barrel is arranged in this guide channel; This first protruding axle of this rotating cam tube is arranged in this first start groove, and this second protruding axle is arranged in this second start groove; When this first protruding axle was positioned at the first groove section of this first start groove, this second protruding axle then was positioned at the first groove section of this second start groove; When this second protruding axle was positioned at the second groove section of this second start groove, this first protruding axle then was positioned at the second groove section of this first start groove.
2. stationary cam tube as claimed in claim 1 is characterized in that, this second opening is communicated with this first groove section of this first start groove; The 3rd opening is communicated with this first groove section of this second start groove.
3. stationary cam tube as claimed in claim 1 is characterized in that, this guide channel, this first start groove and this second start groove all are formed at the inwall of this stack shell.
4. stationary cam tube as claimed in claim 1 is characterized in that, this guide channel is directly to advance groove.
5. stationary cam tube as claimed in claim 1 is characterized in that, when the first protruding axle of this rotating cam tube got into this second groove section by this first groove section, this second protruding axle got into this second groove section by this first groove section simultaneously.
6. stationary cam tube as claimed in claim 1 is characterized in that, after the first protruding axle of this rotating cam tube got into this second groove section preset distance by this first groove section, this second protruding axle got into this second groove section by this first groove section.
7. stationary cam tube as claimed in claim 1 is characterized in that, this first start groove runs through the barrel of this stack shell.
8. stationary cam tube as claimed in claim 1 is characterized in that, this first start groove and this second start groove all run through the barrel of this stack shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110064699.4A CN102681137B (en) | 2011-03-09 | 2011-03-09 | Stationary cam cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110064699.4A CN102681137B (en) | 2011-03-09 | 2011-03-09 | Stationary cam cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102681137A true CN102681137A (en) | 2012-09-19 |
| CN102681137B CN102681137B (en) | 2014-05-28 |
Family
ID=46813321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110064699.4A Expired - Fee Related CN102681137B (en) | 2011-03-09 | 2011-03-09 | Stationary cam cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102681137B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105425358A (en) * | 2014-09-17 | 2016-03-23 | 佳能株式会社 | Lens barrel, optical apparatus and method for manufacturing lens barrel |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001033682A (en) * | 1999-07-15 | 2001-02-09 | Canon Inc | Lens-barrel structure |
| JP2005115169A (en) * | 2003-10-09 | 2005-04-28 | Olympus Corp | Lens barrel |
| US20060181783A1 (en) * | 2005-02-16 | 2006-08-17 | Akihiko Masuki | Optical apparatus such as digital still camera, video camera, and interchangeable lens |
| JP2007004037A (en) * | 2005-06-27 | 2007-01-11 | Funai Electric Co Ltd | Optical unit |
| US20070195429A1 (en) * | 2006-02-17 | 2007-08-23 | Canon Kabushiki Kaisha | Lens barrel |
| US20080106788A1 (en) * | 2006-11-08 | 2008-05-08 | Satoru Yasutomi | Lens barrel |
| CN101533140A (en) * | 2008-03-11 | 2009-09-16 | 佳能株式会社 | Lens barrel and imaging apparatus |
| CN101688964A (en) * | 2007-04-13 | 2010-03-31 | 株式会社理光 | Lens barrel, camera and information device |
-
2011
- 2011-03-09 CN CN201110064699.4A patent/CN102681137B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001033682A (en) * | 1999-07-15 | 2001-02-09 | Canon Inc | Lens-barrel structure |
| JP2005115169A (en) * | 2003-10-09 | 2005-04-28 | Olympus Corp | Lens barrel |
| US20060181783A1 (en) * | 2005-02-16 | 2006-08-17 | Akihiko Masuki | Optical apparatus such as digital still camera, video camera, and interchangeable lens |
| JP2007004037A (en) * | 2005-06-27 | 2007-01-11 | Funai Electric Co Ltd | Optical unit |
| US20070195429A1 (en) * | 2006-02-17 | 2007-08-23 | Canon Kabushiki Kaisha | Lens barrel |
| US20080106788A1 (en) * | 2006-11-08 | 2008-05-08 | Satoru Yasutomi | Lens barrel |
| CN101688964A (en) * | 2007-04-13 | 2010-03-31 | 株式会社理光 | Lens barrel, camera and information device |
| CN101533140A (en) * | 2008-03-11 | 2009-09-16 | 佳能株式会社 | Lens barrel and imaging apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105425358A (en) * | 2014-09-17 | 2016-03-23 | 佳能株式会社 | Lens barrel, optical apparatus and method for manufacturing lens barrel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102681137B (en) | 2014-05-28 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20140528 |