CN101373319B - Device capable of fine adjusting height for image system - Google Patents
Device capable of fine adjusting height for image system Download PDFInfo
- Publication number
- CN101373319B CN101373319B CN200710146133XA CN200710146133A CN101373319B CN 101373319 B CN101373319 B CN 101373319B CN 200710146133X A CN200710146133X A CN 200710146133XA CN 200710146133 A CN200710146133 A CN 200710146133A CN 101373319 B CN101373319 B CN 101373319B
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- gear
- pedestal
- support portion
- relative distance
- actuated piece
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Abstract
A change gear set is arranged in a height adjusting device. Through the combination of gears of different sizes in the change gear set, when an actuating piece is pressed to allow the height adjusting device to be in an adjustable state, a first gear meshed with the actuating piece rotates and generates a first relative distance, and a second gear meshed with a rack arranged on a support part generates a second relative distance with the rack, wherein the second relative distance is smaller than the first relative distance, so as to achieve the purposes of carrying out coarse adjustment and fine adjustment to the support part through the single actuating piece.
Description
Technical field
The present invention relates to a kind of height adjuster, especially a kind of device capable of fine adjusting height that is used for picture system.
Background technology
At present as the picture system of projector and so on be installed on usually ceiling with level of approximation projection way projects images in projection screen, perhaps be placed on the desktop with elevation angle projection way projects images, and in order to satisfy this type of reporting system, the portable requirement of movie system, except generally in large conference room, projector being fixedly installed in the ceiling, the aforementioned second way of the many employings of general projector, just projector is put on the plane and (be generally the desktop that is lower than projection screen), and bottom adjustment projector, adjust the height of pin and adjust the keystone distortion parameter of establishing in the projector, so that picture is projeced on metope or the projection screen.
Existing projector adjusts pin and mainly contains two kinds of forms, one is for adjusting the tooth bar that pin is provided with the fixed teeth distance, when adjusting the pin height control, share the clamping device of tooth bar by Pressing fastener, make the state that the pin disengaging engages with clamping device of adjusting, then adjust pin and to desired height, clamping device is engaged with fixing adjustment pin in desired height with tooth bar.Though can satisfying, this existing practice generally sets up the quick-adjustsing demand of projector, yet because the fixed teeth of tooth bar is apart from having determined the adjustable precision of adjustment pin, and because the design of rack tooth distance also has the size restrictions in the manufacturing, therefore the precision of this adjustment pin is also comparatively coarse.
Second kind of existing projector adjusts pin and then uses screw device to carry out the adjustment of height, in the mode of rotating screw bolt, makes projector adjust pin and possesses quite high adjustment precision.Yet because the moving circle of this screw device revolution can only in height move the spacing of a pitch, therefore adjust pin compared to aforementioned first kind of projector, the adjustment efficient of this adjustment pin is too poor, also is not inconsistent actual use.
Other has the combined type that is improved at aforementioned two kinds of existing projectors adjustment pin to adjust the pin member, fastens by a latch member and screw rod on original screw rod.When latch member was removed fastening to screw rod, screw rod can carry out significantly moving, and under the state that latch member and screw rod fasten, rotatable screw rod is finely tuned to carry out height.Yet for need adjust the picture system that it puts height such as projector's one class, can satisfy the requirement of precision and speed simultaneously for the program that makes its height control, this existing projector adjusts the pin member and needs by two actions to carry out the fine setting of coarse adjustment fast and thin portion respectively, still apparent complexity concerning the user operates.And for some users that are unfamiliar with the type operation, tend to take place only can operate one of them action and the situation of ignoring another action, therefore increase inconvenience.
Summary of the invention
The invention provides a kind of device capable of fine adjusting height that is used for picture system, this height adjuster comprises pedestal, speed gear group, support portion and actuated piece.This speed gear group is arranged on this pedestal, and this speed gear group includes first gear and second gear.This support portion can be moved relative to this pedestal, and this support portion has tooth bar, is used for this second gearing mesh with this speed gear group.This actuated piece is arranged on this pedestal, is used for meshing in a movable manner this first gear of this speed gear group, with this first gear of stop and this second gear.When this actuated piece and this first gear separate, this first gear rotate and and this actuated piece between when producing first relative distance, this second gear rotate simultaneously and and this tooth bar between produce second relative distance, and this first relative distance is greater than this second relative distance.
According to height adjuster of the present invention, wherein first gear and second gear are in-line gears.
According to height adjuster of the present invention, wherein the pitch diameter of first gear is greater than the pitch diameter of second gear.
According to height adjuster of the present invention, also comprise the 3rd gear, second gear is by the engagement of the 3rd wheel and rack.
According to height adjuster of the present invention, wherein the 3rd gear is the damping gear, when the damping wheel and rack meshes, is used for providing the deceleration resistance to the support portion.
According to height adjuster of the present invention, wherein actuated piece comprises grab, is used for and first gearing mesh.
According to height adjuster of the present invention, also comprise first elastic parts, be connected between grab and pedestal, be used for driving the grab and first gearing mesh.
According to height adjuster of the present invention, also comprise second elastic parts, be connected between support portion and the pedestal.
According to height adjuster of the present invention, wherein second elastic parts is a fixed force spring.
The present invention provides a kind of picture system with device capable of fine adjusting height in addition, and it includes housing, lens group and both heights adjusting gear.This lens group is arranged on this housing, is used for image projection to the plane.The both heights adjusting gear is arranged at the bottom surface of this housing respectively, includes pedestal, speed gear group, support portion and actuated piece respectively.This pedestal is connected in the bottom surface of this housing.This speed gear group is arranged on this pedestal, includes first gear and second gear.This support portion can be moved relative to this pedestal, and it has tooth bar, is used for this second gearing mesh with this speed gear group.This actuated piece is arranged on this pedestal, meshes this first gear of this speed gear group in a movable manner, with this first gear of stop and this second gear.Wherein working as this actuated piece separates with this first gear, this first gear rotate and and this actuated piece between when producing first relative distance, this second gear rotate simultaneously and and this tooth bar between produce second relative distance, and this first relative distance is greater than this second relative distance.
According to picture system of the present invention, wherein first gear and second gear are in-line gears.
According to picture system of the present invention, wherein the pitch diameter of first gear is greater than the pitch diameter of second gear.
According to picture system of the present invention, also comprise the 3rd gear, second gear is by the engagement of the 3rd wheel and rack.
According to picture system of the present invention, wherein the 3rd gear is the damping gear, when the damping wheel and rack meshes, is used for providing the deceleration resistance to the support portion.
According to picture system of the present invention, wherein actuated piece comprises grab, is used for and first gearing mesh.
According to picture system of the present invention, also comprise first elastic parts, be connected between grab and pedestal, be used for driving the grab and first gearing mesh.
According to picture system of the present invention, also comprise second elastic parts, be connected between support portion and the pedestal.
According to picture system of the present invention, wherein second elastic parts is a fixed force spring.
Description of drawings
Fig. 1 is the synoptic diagram of fine-tuning height adjuster one embodiment of the present invention.
Fig. 2 is the synoptic diagram at another visual angle of the relative Fig. 1 of height adjuster of the present invention.
Fig. 3 is the decomposing schematic representation of height adjuster of the present invention.
The diagrammatic cross-section of the height adjuster when Fig. 4 is not pressed for actuated piece.
The diagrammatic cross-section of the height adjuster when Fig. 5 is pressed for actuated piece.
Fig. 6 has the synoptic diagram of the picture system of device capable of fine adjusting height for the present invention.
Embodiment
Please refer to Fig. 1 to Fig. 3, Fig. 1 is the synoptic diagram of fine-tuning height adjuster 10 1 embodiment of the present invention, it can be applicable to the picture system as projector, yet for any device with operation height control demand, no matter be the height control of integral body or the height control of any part, the present invention can be applicable in following examples, then explain with projector on it.As shown in Figure 6, projector 100 has housing 110, on the lens group on the housing 110 120 is used for image projection to plane (not shown), the both sides that correspond to lens group 120 in housing 110 bottoms have height adjuster 10 respectively, utilize the height adjuster 10 of both sides can adjust the height L and the R of projector's 100 left and right sides respectively, to adjust the height of projector 100, make lens group 120 with image projection to the appropriate location.Fig. 2 is the synoptic diagram at height adjuster 10 relative another visual angles of Fig. 1, and Fig. 3 then is the decomposing schematic representation of height adjuster 10 each assembly.Height adjuster 10 includes pedestal 20, support portion 30, first gear 40, second gear 50, damping gear 60 and actuated piece 70.10 of fine-tuning height adjusters of the present invention realize adjusting the height coarse adjustment of pin (being support portion 30) and the function of fine setting by the speed gear group of being made up of first gear 40 and second gear 50.Because first gear 40 and second gear 50 are common axle center with rotating shaft 45, therefore first gear 40 and second gear 50 are the in-line gears with same rotational speed.Pedestal 20 is fixedly set in housing 110 bottoms of projector 100, and first gear 40 and second gear 50 then are installed on the pedestal 20 by rotating shaft 45.
In fact support portion 30 (when being applied to projector 100, at least should be arranged in the projector 100 bottom, both sides with lens group 120 homonymies) then be used for support projection machine 100 on desktop, it is by having multiple tooth tooth bar 32, with can relative to pedestal 20 with and on speed gear the group mode and the speed gear group that move intermesh.The assembly of actuated piece 70 for providing the user to push adjustment, it also is arranged on the pedestal 20, and as seen from Figure 2, the grab 72 on the actuated piece 70 is used for and 40 engagements of first gear, and is connected spring 74 20 of grab 72 and pedestals.
Please refer to Fig. 4, when Fig. 4 is grab 72 and 40 engagements of first gear (state that actuated piece 70 is not pressed as yet), the diagrammatic cross-section of height adjuster 10.Wherein because grab 72 and 40 engagements of first gear, and second gear 50 and damping gear 60 engagements coaxial with first gear 40, damping gear 60 again with tooth bar 32 engagement, so the speed gear group is in blocked state, support portion 30 is also locked and can't move in the N direction.
Please refer to Fig. 5, when Fig. 5 is grab 72 and first gear, 40 disengaging engagements (state that actuated piece 70 is pressed), the diagrammatic cross-section of height adjuster 10.When the user pushed actuated piece 70, grab 72 breaks away from the state and the pulling spring 74 that mesh with first gear 40 made spring 74 present the state that is stretched, and first gear 40 this moment (and second gear 50) is in rotating state.Because being the in-line gears and second gear 50, second gear 50 and first gear 40 mesh by damping gear 60 and tooth bar 32, in other words, when grab 72 breaks away from the state that meshes with first gear 40, second gear 50 and damping gear 60 also are in rotating state, tooth bar 32 then can move with respect to damping gear 60, just support portion 30 can be moved relative to pedestal 20, so can reach the purpose of projector's 100 height control.Be provided with fixed force spring 34 (showing in the connecting portion component of fixed part 22 and pedestal 20) between the fixed part 22 on support portion 30 and pedestal 20 in addition, when but tooth bar 32 relative damping gears 60 move, because the effect of fixed force spring 34, support portion 30 is spurred by fixed force spring 34 and moves to the N direction, reaches the purpose of height adjuster 10 coarse adjustment.The damping gear 60 that is engaged in 32 of second gear 50 and tooth bars simultaneously provides tooth bar 32 1 deceleration resistances, makes support portion 30 unlikely by fixed force spring 34 pulling and be difficult for support portion 30 is adjusted to pre-determined bit fast when the N direction moves.When the user stopped to press actuated piece 70,74 pulling grabs 72 of the spring that is stretched made grab 72 mesh the state that height adjuster 10 is recovered as Fig. 4 with first gear 40 once again.
In other embodiment of height adjuster 10 of the present invention, also can be by 50 direct and tooth bar 32 engagements of second gear, and need be by damping gear 60, to reach the purpose of adjusting support portion 30, and in other embodiment of the present invention, damping gear 60 and fixed force spring 34 can need be set fully yet, can realize purpose of the present invention by actuated piece 70, speed gear group (comprising first gear 40 and second gear 50) and support portion 30.
As previously mentioned, the disclosed height adjuster 10 of the present invention is realized the height coarse adjustment of support portion 30 and the function of fine setting by the speed gear group.Wherein in the disclosed embodiment of the present invention, the pitch diameter of first gear 40 is greater than the pitch diameter of second gear 50, and has 40 teeth on first gear 40 and have 10 teeth on second gear 50.Because first gear 40 and the coaxial effect of second gear 50, the rotation distance of first gear 40 and second gear 50 is 4 to 1, therefore when height adjuster 10 is in the actuating state of Fig. 5, when first gear 40 when grab 72 rotates a tooth pitch, 50 of second gears rotate 1/4 tooth pitch, also move 1/4 tooth pitch with hour rack 32 (or damping gear 60 interlock tooth bars 32), therefore when actuated piece 70 relative first gears 40 need with the tooth pitch to be the unit adjustment, can make support portion 30 by the speed gear group is unit adjustment height with 1/4 tooth pitch, therefore by the disclosed height devices 10 of the present invention, can make in this embodiment and adjust precision improvement is four times.Pitch diameter ratio as for first gear 40 and second gear 50 then can be according to making any possible design to the demand of precision adjustment, therefore the technical characterictic that the present invention discloses is not subject to the data of the foregoing description.
The disclosed height adjuster of the present invention is applied to have the device of operation height control demand, on the picture system as projector.One speed gear group is set in height adjuster, see through the combination of different big pinion wheels in the speed gear group, when pushing actuated piece and height adjuster be in to adjust state, rotate and produce first relative distance with first gear of actuated piece engagement, and then produce second relative distance between second wheel and rack of the engagement of the tooth bar on the support portion, and second relative distance is less than first relative distance, to reach the purpose of the support portion being carried out coarse adjustment and fine setting by single actuating.
The above only is the preferred embodiments of the present invention, allly replaces and modifies according to claim of the present invention being equal to of doing, and all should belong to covering scope of the present invention.
Symbol description
10 height adjusters, 20 pedestals
22 fixed parts, 30 support portions
32 tooth bars, 34 fixed force springs
45 rotating shafts of 40 first gears
50 second gears, 60 damping gears
70 actuated pieces, 72 grabs
74 spring N directions
100 projectors, 110 housings
120 lens group L, the R height
Claims (14)
1. device capable of fine adjusting height that is used for picture system includes:
Pedestal;
The speed gear group is arranged on the described pedestal, and described speed gear group includes first gear and second gear;
The support portion can be moved relative to described pedestal, and described support portion has tooth bar, is used for described second gearing mesh with described speed gear group; And
Actuated piece is arranged on the described pedestal, and described actuated piece meshes described first gear of described speed gear group in a movable manner, with described first gear of stop and described second gear;
Wherein said first gear and described second gear are in-line gears, the pitch diameter of described first gear is greater than the pitch diameter of described second gear, when described actuated piece separates with described first gear, the circumferential distance that tooth on described first gear rotates is first relative distance, described second gear rotates simultaneously, the circumferential distance that tooth on described second gear rotates is second relative distance, and described first relative distance is greater than described second relative distance.
2. height adjuster according to claim 1 also comprises the 3rd gear, and described second gear is by described the 3rd gear and the engagement of described tooth bar.
3. height adjuster according to claim 2, wherein said the 3rd gear is the damping gear, when described damping gear and the engagement of described tooth bar, is used for providing the deceleration resistance to described support portion.
4. height adjuster according to claim 1, wherein said actuated piece comprises grab, is used for and described first gearing mesh.
5. height adjuster according to claim 4 also comprises first elastic parts, is connected between described grab and described pedestal, is used for driving described grab and described first gearing mesh.
6. height adjuster according to claim 1 also comprises second elastic parts, is connected between described support portion and the described pedestal.
7. height adjuster according to claim 6, wherein said second elastic parts is a fixed force spring.
8. picture system with device capable of fine adjusting height includes:
Housing;
Lens group is arranged on the described housing, is used on image projection to a plane; And
The both heights adjusting gear is arranged at the bottom surface of described housing respectively, and described height adjuster includes:
Pedestal is connected in the bottom surface of described housing;
The speed gear group is arranged on the described pedestal, and described speed gear group includes first gear and second gear;
The support portion can be moved relative to described pedestal, and described support portion has tooth bar, is used for described second gearing mesh with described speed gear group; And
Actuated piece is arranged on the described pedestal, and described actuated piece meshes described first gear of described speed gear group in a movable manner, with described first gear of stop and described second gear;
Wherein said first gear and described second gear are in-line gears, the pitch diameter of described first gear is greater than the pitch diameter of described second gear, when described actuated piece separates with described first gear, the circumferential distance that tooth on described first gear rotates is first relative distance, described second gear rotates simultaneously, the circumferential distance that tooth on described second gear rotates is second relative distance, and described first relative distance is greater than described second relative distance.
9. picture system according to claim 8 also comprises the 3rd gear, and described second gear is by described the 3rd gear and the engagement of described tooth bar.
10. picture system according to claim 9, wherein said the 3rd gear is the damping gear, when described damping gear and the engagement of described tooth bar, is used for providing the deceleration resistance to described support portion.
11. picture system according to claim 8, wherein said actuated piece comprises grab, is used for and described first gearing mesh.
12. picture system according to claim 11 also comprises first elastic parts, is connected between described grab and described pedestal, is used for driving described grab and described first gearing mesh.
13. picture system according to claim 8 also comprises second elastic parts, is connected between described support portion and the described pedestal.
14. picture system according to claim 13, wherein said second elastic parts is a fixed force spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710146133XA CN101373319B (en) | 2007-08-23 | 2007-08-23 | Device capable of fine adjusting height for image system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710146133XA CN101373319B (en) | 2007-08-23 | 2007-08-23 | Device capable of fine adjusting height for image system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101373319A CN101373319A (en) | 2009-02-25 |
| CN101373319B true CN101373319B (en) | 2010-06-09 |
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ID=40447547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710146133XA Expired - Fee Related CN101373319B (en) | 2007-08-23 | 2007-08-23 | Device capable of fine adjusting height for image system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101373319B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI438490B (en) | 2010-05-14 | 2014-05-21 | Delta Electronics Inc | Light source system and projection apparatus using the same |
| CN102262342B (en) * | 2010-05-24 | 2013-02-06 | 台达电子工业股份有限公司 | Light source system and projector using same |
| CN102890323B (en) * | 2011-07-21 | 2015-04-15 | 佳能企业股份有限公司 | Image capturing device and lens module thereof |
| CN106801775B (en) * | 2016-12-29 | 2018-12-11 | 苏州佳世达电通有限公司 | Adjustable supporting device and the display device for using it |
| CN109654351A (en) * | 2017-10-12 | 2019-04-19 | 深圳光峰科技股份有限公司 | Fuselage regulating device and projection device |
| CN108515590B (en) * | 2018-03-28 | 2020-08-18 | 重庆市健隆家具有限公司 | Device for processing plate |
| CN109024901A (en) * | 2018-09-12 | 2018-12-18 | 安徽民和杭萧钢构股份有限公司 | A kind of building construction steel structure device |
| CN111292655B (en) * | 2020-03-29 | 2024-06-07 | 深圳市金研微科技有限公司 | Projection system applied to subway rail transit platform and installation method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1477442A (en) * | 2002-08-22 | 2004-02-25 | 致伸科技股份有限公司 | Height regulating system of projector |
-
2007
- 2007-08-23 CN CN200710146133XA patent/CN101373319B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1477442A (en) * | 2002-08-22 | 2004-02-25 | 致伸科技股份有限公司 | Height regulating system of projector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101373319A (en) | 2009-02-25 |
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Granted publication date: 20100609 Termination date: 20130823 |