CN102768392B - Transmission device for optical equipment - Google Patents
Transmission device for optical equipment Download PDFInfo
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- CN102768392B CN102768392B CN201110114339.0A CN201110114339A CN102768392B CN 102768392 B CN102768392 B CN 102768392B CN 201110114339 A CN201110114339 A CN 201110114339A CN 102768392 B CN102768392 B CN 102768392B
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- transmission device
- screw rod
- folder pawl
- optical equipment
- arm
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Abstract
The invention relates to a transmission device for optical equipment, which comprises a drive unit, a guide part, a frame sleeved on the guide part, a clamping jaw unit, a first elastic part and a second elastic part. The drive unit comprises a screw rod. The clamping jaw unit comprises a main clamping jaw and an assistant clamping jaw and is connected with the frame. The first elastic part is arranged on the frame and constantly keeps the main clamping jaw and the assistant clamping jaw to be close with each other so as to be tightly meshed with the screw rod. The second elastic part is arranged on the clamping jaw unit and constantly keeps the frame to push against the guide part. According to the transmission device, the screw rod is driven to rotate by the drive unit so as to drive the clamping jaw unit to lead the optical device on the frame to traverse the guide part; and the frame constantly pushes against the guide part, so that, the frame does not cause shake to result in deviation in optical imaging when being in movement.
Description
Technical field
The invention relates to a kind of transmission device, refer to a kind of transmission device of optical equipment especially.
Background technique
Optical equipment is on the market as camera, projection camera etc., and need when focusing to move eyeglass to appropriate location by transmission device, use and reach desired focal length, therefore the design precision of transmission device, will affect the effect of imaging.
Consult Fig. 1 and Fig. 2, known optical equipment transmission device, as claimant shown in the TaiWan, China Publication No 201035670 applied for, comprise screw rod 11, guide member 12, the framework 13 be sheathed on this guide member 12, the jaw unit 14 be arranged in this framework 13, and elastic component 15.This jaw unit 14 comprises main folder pawl 141, sub-folder pawl 142, and the module 143 be arranged at respectively between this major and minor jaw 141,142, this elastic component 15 perseverance pushes away this major and minor jaw 141,142 adjacent to each other and drive this module 143, and then this sub-folder pawl 142 is resisted against on this screw rod 11, produce back clearance when avoiding this major and minor jaw 141,142 to engage with this screw rod 11.
Although above-mentioned patent solves the back clearance of this screw rod 11 engagement and the stroke inaccuracy that produces, but cause the factor of this transmission device precision, except the meshing problem of this screw rod 11, because have gap in this framework 13 and this guide member 12, and this framework 13 becomes two linkage mechanisms with this jaw unit 14 pivot joint, so this framework 13 can do rocking by a small margin in gap, affect imaging because departing from optical axis.
Summary of the invention
The technical problem to be solved in the present invention is, can produce the defect of rocking, provide a kind of transmission device that can reduce the optical equipment that framework is rocked for the framework of optics transmission device in prior art.
The technological scheme that the present invention adopts for its technical problem of solution provides a kind of transmission device of optical equipment, comprises driver element, guide member, framework, jaw unit, the first elastic component and the second elastic component.This driver element comprises the screw rod arranged along axis, and the actuator driving this screw rod to rotate around this axis.This guide member be arranged in parallel with this screw rod.This framework is connected to this guide member and can along this axial direction slippage.This jaw unit is connected to this framework, and comprise main folder pawl, sub-folder pawl, and module, this main folder grippers has the hinged arm extended vertically, this sub-folder pawl is sheathed on this hinged arm and also can rotates relative to this main folder pawl, and this major and minor jaw is engaged in this screw rod, this module has plural number and is arranged at this main folder pawl and sub-folder pawl wherein one and have the cam member of plane of inclination respectively, and plural number is arranged at this main folder pawl with sub-folder pawl another one and the driven member abutted with these plane of inclination slidably respectively.This first elastic component is sheathed on the frame bar of this jaw unit, and permanent this major and minor jaw that keeps is adjacent to each other, and each driven member is slided along this plane of inclination, and then makes this sub-folder pawl radially and axially abut against this screw rod simultaneously.This second elastic component is sheathed on the hinged arm of this jaw unit, and one end precompressed is resisted against this framework, and the other end precompressed is resisted against the screw rod of this driver element, and permanent this framework that keeps abuts against this guide member.
Effect of the present invention is: by the elastic force of this second elastic component, and to eliminate between this framework with this guide member relative rocks.
Accompanying drawing explanation
Fig. 1 is a three-dimensional exploded view, and the transmission device of known optical equipment is described;
Fig. 2 is a partial sectional view, and the transmission device of known optical equipment is described, solves when jaw unit engages with screw rod and produces back clearance;
Fig. 3 is a stereogram, and preferred embodiment of the present invention is described;
Fig. 4 is a partial sectional view, illustrates that the first elastic component of the present invention is resisted against sub-folder pawl and the second pivot ear;
Fig. 5 is a side view, illustrates that the second elastic component of the present invention is resisted against framework and screw rod; And
Fig. 6 is a side view, and sub-folder pawl of the present invention, the first elastic component and this second elastic component are described.
Embodiment
Aforementioned and other technology contents, feature and effect for the present invention, in the detailed description of a preferred embodiment of following cooperation accompanying drawing, can clearly present.
Consult Fig. 3, Fig. 4 and Fig. 5, the preferred embodiment of the transmission device of optical equipment of the present invention comprises driver element 2, guide member 3, framework 4, jaw unit 5, first elastic component 6 and the second elastic component 7.
This driver element 2 comprises the screw rod 21 arranged along axis L, and the actuator 22 driving this screw rod 21 to rotate around this axis L, and in the present embodiment, this actuator 22 can be motor.
This guide member 3 be arranged in parallel along the direction of this axis L and this screw rod 21, and in the present embodiment, this guide member 3 is guide rods.
This framework 4 is for bearing optical assembly and comprises spaced first pivot ear 41 and the second pivot ear 42 vertically, and this framework 4 also comprises the trepanning 43 that can be sheathed on this guide member 3, and this framework 4 freely can be slided along this axis L direction.
This jaw unit 5 comprises main folder pawl 51, sub-folder pawl 52, and module 53.This main folder pawl 51 has hinged arm 511, first end face 512, first side arm 513, second side arm 514 and the 3rd side arm 515 that extend vertically, and this sub-folder pawl 52 has the second end face 521, the 3rd end face 522, pivoted hole 528 (consulting Fig. 6) and jig arm 529.This sub-folder pawl 52 is sheathed on this hinged arm 511 by this pivoted hole 528, is articulated on this main folder pawl 51 rotationally, and in addition, this main folder pawl 51 is also articulated in this first pivot ear 41 with on this second pivot ear 42 rotationally by this hinged arm 511.Toward each other, and this second end face 521 is settings opposite each other with the 3rd end face 522 for this first end face 512 and this second end face 521.Second side arm 514 of this main folder pawl 51 and the 3rd side arm 515 interval be engaged in the side of this screw rod 21 vertically each other, this first side arm 513 is engaged in the opposite side of this screw rod 21, the jig arm 529 of this sub-folder pawl 52 is between this second side arm 514 and the 3rd side arm 515, and it is relative with this first side arm 513, wherein, this first side arm 513, this second side arm 514, the 3rd side arm 515 distinctly have the screw section 54 of engaging with this screw rod 21 with this jig arm 529.
Consult Fig. 6 simultaneously, 3rd end face 522 of this sub-folder pawl 52 is formed with the surrounding wall 523 around this pivoted hole 528, the inner peripheral surface of this surrounding wall 523 is step shape, and define the first groove 524 and the second groove 525, wherein, this first groove 524 is away from the 3rd end face 522, contiguous 3rd end face 522 of this second groove 525, and the diameter of this second groove 525 is less than the diameter of this first groove 524, in addition, this surrounding wall 523, in non-whole circle sequential like, also has upper cut 526 and lower cut 527.
This module 53 has plural number and is arranged at this main folder pawl 51 and the cam member 534 respectively with plane of inclination 531, and plural number is arranged at this sub-folder pawl 52 and the driven member 535 abutted with these plane of inclination 531 slidably respectively.Each plane of inclination 531 has deep end 532 and shallow end 533, and each driven member 535 can be free to slide in the deep end 532 of the plane of inclination 531 corresponding with it and shallow end 533.In the present embodiment, these driven members 535 are hemispherical structure.
This first elastic component 6 is sheathed on this hinged arm 511 and one end is resisted against this second pivot ear 42, and the other end is resisted against this first groove 524.This first elastic component 6 perseverance keeps this major and minor jaw 51,52 adjacent to each other, each driven member 535 is made to move to deep end 532 along the shallow end 533 of this plane of inclination 531, drive this screw rod 21 of jig arm 529 rotation direction of this sub-folder pawl 52, this main folder pawl 51 can be arranged in pairs or groups mutually with this sub-folder pawl 52 and be engaged in this screw rod 21 tightly.In the present embodiment, this first elastic component 6 is Compress Spring.
In the present embodiment, this second elastic component 7 is for torsion spring and comprise circulation portions 71, and the first end pin 72 extended outwardly from this circulation portions 71 and the second end pin 73.Be sheathed on this hinged arm 511 in the second groove 525 that the circulation portions 71 of this second elastic component 7 is arranged at this sub-folder pawl 52, and its first end pin 72 and the second end pin 73 stretch out from this this upper cut 526 and this lower cut 527 respectively simultaneously.This first end pin 72 precompressed of this second elastic component 7 is resisted against this framework 4, and this second end pin 73 precompressed is resisted against the screw rod 21 of this driver element 2, and its elastic force perseverance keeps this framework 4 to abut against this guide member 3.
Above combines, and act of operation of the present invention is:
The actuator 22 of this driver element 2 drives this screw rod 21 when this axis L rotates, and draw the screw section 54 of this major and minor jaw 51,52, and then drive moving back and forth of this framework 4, the optical module in this framework 4 just can move by this, adjusts imaging.
Via above-mentioned explanation, the present invention can be summarized as follows compared to the advantage of known front case:
As shown in Figure 5, the clearance G between the trepanning 43 of this framework 4 and this guide member 3, the elastic force perseverance by this second elastic component 7 makes this framework 4 abut against this guide member 3 and perseverance and remains on right side.When the actuator 22 of this driver element 2 drives this screw rod 21 to rotate around this axis L, this major and minor jaw 51,52 draws this framework 4 and moves, because this framework 4 perseverance abuts against this guide member 3, therefore this framework 4 just can not produce and rock, thus, by the precision of significantly lifting gear, make imaging effect even more ideal, in addition, the present invention also can reduce further and rocks noise between this framework 4 and this guide member 3.
It is worth mentioning that, this second elastic component 7 is not limited to be arranged between this sub-folder pawl 52 and this second pivot ear 42, also can be arranged between this main folder pawl 51 and this first pivot ear 41.
The foregoing is only preferred embodiment of the present invention, can not limit scope of the invention process with this, the simple equivalence namely generally done according to the claims in the present invention and invention description content changes and modifies, and all still remains within the scope of the patent.
Claims (10)
1. a transmission device for optical equipment, comprises:
Driver element, comprises the screw rod arranged along axis, and the actuator driving this screw rod to rotate around this axis;
Guide member be arranged in parallel with this screw rod;
Framework, being connected to this guide member also can along this axial direction slippage;
Jaw unit, be connected to this framework, and comprise main folder pawl, sub-folder pawl, and module, this main folder grippers has the hinged arm extended vertically, this sub-folder pawl is sheathed on this hinged arm and also can rotates relative to this main folder pawl, and this major and minor jaw is engaged in this screw rod, this module has plural number and is arranged at this main folder pawl and sub-folder pawl wherein one and have the cam member of plane of inclination respectively, and plural number is arranged at this main folder pawl with sub-folder pawl another one and the driven member abutted with these plane of inclination slidably respectively; And
First elastic component, is sheathed on the hinged arm of this jaw unit, and permanent this major and minor jaw that keeps is adjacent to each other, and each driven member is slided along this plane of inclination, and then makes this sub-folder pawl radially and axially abut against this screw rod simultaneously; It is characterized in that, the transmission device of described optical equipment also comprises:
Second elastic component, is sheathed on the hinged arm of this jaw unit, and one end precompressed is resisted against this framework, and the other end precompressed is resisted against the screw rod of this driver element, and permanent this framework that keeps abuts against this guide member.
2. according to the transmission device of optical equipment according to claim 1, it is characterized in that, this second elastic component is torsion spring, and has circulation portions, and the first end pin extended outwardly from this circulation portions and the second end pin.
3. according to the transmission device of optical equipment according to claim 2, it is characterized in that, this framework also comprises spaced first pivot ear and the second pivot ear vertically, and this main folder pawl is articulated in rotationally on this first, second pivot ear by this hinged arm.
4. according to the transmission device of optical equipment according to claim 3, it is characterized in that, the main folder grippers of this jaw unit has the first end face, the sub-folder grippers of this jaw unit has the second end face, three end face that arrange contrary to this second end face, and the pivoted hole supplying this hinged arm sheathed, 3rd end face is formed with the surrounding wall around this pivoted hole, the inner peripheral surface of this surrounding wall is step shape and defines the first groove and the second groove, this first groove is away from the 3rd end face, contiguous 3rd end face of this second groove, and the diameter of this second groove is less than the diameter of this first groove, the circulation portions of this second elastic component is arranged in the second groove of this jaw unit.
5. according to the transmission device of optical equipment according to claim 4, it is characterized in that, this surrounding wall is non-whole circle sequential like, also has upper cut and lower cut, and this first end pin and this second end pin stretch out from this upper cut and this lower cut respectively.
6. according to the transmission device of optical equipment according to claim 4, it is characterized in that, this first elastic component one end is resisted against this second pivot ear, and the other end is resisted against the first groove of this jaw unit simultaneously.
7., according to the transmission device of the arbitrary described optical equipment of claim 4 to 6, it is characterized in that, these cam members are arranged on this first end face, and these driven members are arranged on this second end face.
8. according to the transmission device of optical equipment according to claim 7, it is characterized in that, this main folder pawl also has the first side arm, the second side arm and the 3rd side arm, this second side arm and the 3rd side arm interval be engaged in the side of this screw rod vertically each other, and this first side arm is engaged in the opposite side of this screw rod.
9. according to the transmission device of optical equipment according to claim 8, it is characterized in that, this sub-folder pawl also has jig arm, and this jig arm is between this second side arm and the 3rd side arm, and relative with this first side arm.
10. according to the transmission device of optical equipment according to claim 9, it is characterized in that, this first side arm, this second side arm, the 3rd side arm have individually the screw section of engaging with this screw rod with this jig arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110114339.0A CN102768392B (en) | 2011-05-04 | 2011-05-04 | Transmission device for optical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110114339.0A CN102768392B (en) | 2011-05-04 | 2011-05-04 | Transmission device for optical equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102768392A CN102768392A (en) | 2012-11-07 |
| CN102768392B true CN102768392B (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110114339.0A Active CN102768392B (en) | 2011-05-04 | 2011-05-04 | Transmission device for optical equipment |
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| Country | Link |
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| CN (1) | CN102768392B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343920B (en) * | 2014-10-13 | 2016-09-14 | 中山联合光电科技有限公司 | A kind of drive mechanism being applied to lens assembly |
| JP6751646B2 (en) * | 2016-10-20 | 2020-09-09 | オリンパス株式会社 | Lens barrel |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101685191B (en) * | 2005-01-12 | 2013-06-05 | 特里伯耶拿有限公司 | Positioning device |
| US7531773B2 (en) * | 2005-09-08 | 2009-05-12 | Flextronics Ap, Llc | Auto-focus and zoom module having a lead screw with its rotation results in translation of an optics group |
| JP4518186B2 (en) * | 2008-05-19 | 2010-08-04 | 船井電機株式会社 | LENS DRIVE MECHANISM AND OPTICAL PICKUP HAVING THE SAME |
| JP5253879B2 (en) * | 2008-05-21 | 2013-07-31 | 日本電産コパル株式会社 | Lens drive device |
| TWI397763B (en) * | 2009-03-16 | 2013-06-01 | Asia Optical Co Inc | The transmission of optical equipment |
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2011
- 2011-05-04 CN CN201110114339.0A patent/CN102768392B/en active Active
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| Publication number | Publication date |
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| CN102768392A (en) | 2012-11-07 |
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