CN102654724B - Projector and lifting module thereof - Google Patents
Projector and lifting module thereof Download PDFInfo
- Publication number
- CN102654724B CN102654724B CN201110052831.XA CN201110052831A CN102654724B CN 102654724 B CN102654724 B CN 102654724B CN 201110052831 A CN201110052831 A CN 201110052831A CN 102654724 B CN102654724 B CN 102654724B
- Authority
- CN
- China
- Prior art keywords
- transmission gear
- shell
- axis
- double
- screw bolt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/145—Housing details, e.g. position adjustments thereof
Abstract
The invention discloses a projector and a lifting module thereof. The projector is placed on a plane and comprises a main body and the lifting module, wherein the main body is provided with a shell, the shell is provided with an opening, the lifting module comprises a motor, a transmission gear, a stud, a limiting part and a foot pad, the motor and the transmission gear are arranged in the shell and coupled with each other, the transmission gear is provided with an open pore which is aligned with the opening, the inner wall of the open pore is provided with internal threads, the stud penetrates through the open pore along the axis and provided with external threads meshed with the internal threads, the tail end of the stud extends out of the shell from the opening, the limiting part is fixed in the shell, the transmission gear is positioned between a first opening and the limiting part, the limiting part can be used for preventing the transmission gear from moving relative to the shell along the axis, the foot pad is connected at the tail end of the stud so as to be in contact with the plane, and the motor is used for driving the transmission gear to rotate along the axis so as to drive the stud to move along the axis and change the distance between the shell and the foot pad.
Description
[technical field]
The invention relates to a kind of optical device and lifting module thereof, and particularly relevant for a kind of projector and lifting module thereof.
[background technology]
Projector is a kind of in order to produce the display device of large scale picture.The image-forming principle of projector is that the illuminating bundle that light source module is produced converts image strip to by light valve, then image strip is projected on screen or metope to form image by camera lens.Along with the progress of shadow casting technique and the reduction of manufacturing cost, the use of projector is expanded to domestic use gradually from commercial use.
In order to allow user can adjust the height of projected picture, some projectors are provided with elevating mechanism, make projector rise or to decline with respect to desktop.For instance, user can drive elevating mechanism start so that projector's lifting by manual modes such as rotation foots pad.It is consuming time that this kind of design allows user comparatively require great effort in operation, and user need prop up projector with hand in operating process, and the heat that projector sends and light all may damage user.
TaiWan, China patent TW discloses a kind of electronic installation of adjusting assembly that has for No. I266945, by the height of gear and tooth bar adjustment electronic installation.TaiWan, China publication TW discloses a kind of electronic installation that utilizes damping gear adjustment height for No. 200907542.TaiWan, China patent TW discloses a kind of electronic installation No. I250369, by elastic component, elevating mechanism is locked and discharges.
[summary of the invention]
The present invention proposes a kind of projector, its lifting module operation on for convenience of and safety.
The present invention proposes a kind of its lifting module, operation on for convenience of and safety.
Other objects of the present invention and advantage can be further understood from the disclosed technical characterictic of the present invention.
For reaching one of above-mentioned or part or all objects or other objects, one of the present invention embodiment provides a kind of projector, puts in plane.Projector comprises main body and lifting module.Main body has shell.Shell has the first opening.Lifting module comprises motor, transmission gear, double-screw bolt, locating part and foot pad.Motor configurations is in shell.Transmission gear is disposed in shell and couples motor.Transmission gear has perforate.Perforate is to being positioned at the first opening.Perforate inwall has internal thread.Double-screw bolt is arranged in perforate along axis.Double-screw bolt has external thread.External thread is engaged in internal thread.The end of double-screw bolt passes shell from the first opening.Locating part is fixed in shell.Transmission gear is between first opening and locating part of shell.Locating part stops transmission gear to move with respect to shell along axis.Foot pad is connected in the end of double-screw bolt and contact plane.Motor is in order to drive transmission gear to rotate along axis, and drive double-screw bolt moves along axis, to change the distance between shell and foot pad.
In an embodiment, wherein, transmission gear has the annular ditch groove around perforate, and locating part has a ring-type fin, and ring-type fin stretches in annular ditch groove and stops transmission gear to move with respect to shell along the direction of vertical axis.
In an embodiment, wherein, transmission gear has the ring-type fin around perforate, and locating part has an annular ditch groove, and ring-type fin stretches in annular ditch groove and stops transmission gear to move with respect to shell along the direction of vertical axis.
In an embodiment, wherein, shell has an annular ditch groove, and transmission gear has the ring-type fin around perforate, and ring-type fin stretches in annular ditch groove and stops transmission gear to move with respect to shell along the direction of vertical axis.
In an embodiment, wherein, shell has a ring-type fin, and transmission gear has the annular ditch groove around perforate, and ring-type fin stretches in annular ditch groove and stops transmission gear to move with respect to shell along the direction of vertical axis.
In an embodiment, wherein, locating part has one second opening, and double-screw bolt is through the second opening.
In an embodiment, wherein, foot pad is hubbed at the end of double-screw bolt along axis.
In an embodiment, wherein, foot pad has a hole, and double-screw bolt has from the extended snap fit of end, and snap fit is limited in end through hole by foot pad.
In an embodiment, wherein, foot pad is articulated in snap fit along axis.
In an embodiment, wherein, lifting module more comprises a train of reduction gears, and train of reduction gears is connected in motor and is engaged in transmission gear.
For reaching one of above-mentioned or part or all objects or other objects, one of the present invention embodiment provides a kind of lifting module, for projector.Projector puts in plane.Projector has shell.Shell has the first opening.Lifting module comprises motor, transmission gear, double-screw bolt, locating part and foot pad.Motor configurations is in shell.Transmission gear is disposed in shell and couples motor.Transmission gear has perforate.Perforate is to being positioned at the first opening.Perforate inwall has internal thread.Double-screw bolt is arranged in perforate along axis.Double-screw bolt has external thread.External thread is engaged in internal thread.The end of double-screw bolt passes shell from the first opening.Locating part is fixed in shell.Transmission gear is between first opening and locating part of shell.Locating part stops transmission gear to move with respect to shell along axis.Foot pad is connected in the end of double-screw bolt and contact plane.Motor is in order to drive transmission gear to rotate along axis, and drive double-screw bolt moves along axis, to change the distance between shell and foot pad.
In an embodiment, wherein, transmission gear has the annular ditch groove around perforate, and locating part has a ring-type fin, and ring-type fin stretches into annular ditch groove and stops transmission gear to move with respect to shell along the direction of vertical axis.
In an embodiment, wherein, transmission gear has the ring-type fin around perforate, and locating part has an annular ditch groove, and ring-type fin stretches into annular ditch groove and stops transmission gear to move with respect to shell along the direction of vertical axis.
In an embodiment, wherein, shell has an annular ditch groove, and transmission gear has the ring-type fin around perforate, and ring-type fin stretches into annular ditch groove and stops transmission gear to move with respect to shell along the direction of vertical axis.
In an embodiment, wherein, shell has a ring-type fin, and transmission gear has the annular ditch groove around perforate, and ring-type fin stretches into annular ditch groove and stops transmission gear to move with respect to shell along the direction of vertical axis.
In an embodiment, wherein, locating part has one second opening, and double-screw bolt is through the second opening.
In an embodiment, wherein, foot pad is hubbed at the end of double-screw bolt along axis.
In an embodiment, wherein, foot pad has a hole, and double-screw bolt has from the extended snap fit of end, and snap fit is limited in end through hole by foot pad.
In an embodiment, wherein, foot pad is articulated in snap fit along axis.
In an embodiment, more comprise a train of reduction gears, train of reduction gears is connected in motor and is engaged in transmission gear.
Based on above-mentioned, in the above embodiment of the present invention, motor drives double-screw bolt to move with respect to shell by transmission gear, so that the main body of projector rises or declines with respect to plane.Because the start of lifting module is to drive by motor, user must not prop up projector and rotate foot pad by manual mode with hand, convenience and security on therefore can lifting operation.
For above-mentioned feature and advantage of the present invention can be become apparent, a plurality of embodiment cited below particularly, and coordinate appended graphicly, be described in detail below.
[accompanying drawing explanation]
Fig. 1 is the stereographic map of the projector of one embodiment of the invention.
Fig. 2 is the partial perspective view of the projector of Fig. 1.
Fig. 3 is the partial component explosive view of the projector of Fig. 1.
The illustrative view of the lifting module that Fig. 4 A and Fig. 4 B are Fig. 2.
Fig. 5 is the partial sectional view of the projector of Fig. 1.
50: plane
100: projector
110: main body
112: shell
112a: the first opening
112b, 124b: annular ditch groove
112c, 112d: button
120: lifting module
122: motor
124: transmission gear
124a: perforate
124c, 128a: ring-type fin
126: double-screw bolt
126a: end
126b: snap fit
127: train of reduction gears
128: locating part
128b: the second opening
129: foot pad
129a: hole
A: axis
[embodiment]
About aforementioned and other technology contents, feature and effect of the present invention, in the following detailed description coordinating with reference to graphic a plurality of embodiment, can clearly present.The direction term of mentioning in following examples, such as " on ", D score, 'fornt', 'back', " left side ", " right side " etc., be only the direction with reference to annexed drawings.Therefore, the direction term of use is for explanation, but not is used for limiting the present invention.
Fig. 1 is the stereographic map of the projector of one embodiment of the invention.Please refer to Fig. 1, projector 100 puts in plane 50, and plane 50 is for example desktop or other is for putting the surface of projector 100.Projector 100 comprises main body 110 and lifting module 120.Lifting module 120 is for adjusting the main body 110 of projector 100 with respect to the distance of plane 50.Below by the composition of graphic detailed description lifting module 120 and make flowing mode.
Fig. 2 is the partial perspective view of the projector of Fig. 1.Fig. 3 is the partial component explosive view of the projector of Fig. 1.Please refer to Fig. 1 to Fig. 3, the main body 110 of the present embodiment has shell 112, and shell 112 has the first opening 112a.Lifting module 120 comprises motor 122, transmission gear 124, double-screw bolt 126, locating part 128 and foot pad 129.Motor 122 is disposed in shell 112.Transmission gear 124 is disposed in shell 112 and couples motor 122.Transmission gear 124 has perforate 124a.Perforate 124a is to being positioned at the first opening 112a, and perforate 124a inwall has internal thread.
Double-screw bolt 126 is arranged in perforate 124a and has external thread along axis A.The external thread of double-screw bolt 126 is engaged in the internal thread of perforate 124a inwall, and the end 126a of double-screw bolt 126 passes shell 112 from the first opening 112a.Locating part 128 is fixed in shell 112.Transmission gear 124 is between shell 112 and locating part 128.The effect of locating part is to stop transmission gear 124 to move with respect to shell 112 along axis A.Foot pad 129 is connected in the end 126a of double-screw bolt 126 and contact plane 50.Motor 122 is in order to drive transmission gear 124 to rotate along axis A, and drive double-screw bolt 126 moves with respect to shell 112 along axis A, to change the distance between shell 112 and foot pad 129.
The illustrative view of the lifting module that Fig. 4 A and Fig. 4 B are Fig. 2.By above-mentioned configuration mode, when user's wish is adjusted projector 100 with respect to the distance of plane 50, can starter motor 122 to drive double-screw bolts 126 to rise (as shown in Figure 4 A) or decline (as shown in Figure 4 B) with respect to shell 112 by transmission gear 124, so that the main body 110 of projector 100 declines or rises with respect to plane 50.Because the start of lifting module 120 is to drive by motor 122, user must not prop up projector 100 and rotate foot pad 129 by manual mode with hand, convenience and security on therefore can lifting operation.In the present embodiment, locating part 128 has the second opening 128b, and double-screw bolt 126, through the second opening 128b, is used the position of further restriction double-screw bolt 126, and made one-piece construction more firm.
The present invention is not limited the number of lifting module 120.As shown in Figure 1, the projector 100 of the present embodiment is for example provided with a plurality of lifting modules 120 (showing two), so that projector 100 all can carry out lifting at each foot pad 129 places.In addition, in the present embodiment, user can be by the start of being located at button 112c on shell 112 and button 112d and controlling lifting module 120.For instance, when pressing button 112c, can order about motor 122 and just transfer to drive main bodys 110 to rise with respect to plane 50 by transmission gear 124 and double-screw bolt 126.When pressing button 112d, can order about motor 122 and reverse and drive main bodys 110 to decline with respect to plane 50 by transmission gear 124 and double-screw bolt 126.In other embodiments, also can by the mode of remote control, control the start of lifting module 120, the present invention is not limited this.
Fig. 5 is the partial sectional view of the projector of Fig. 1.Please refer to Fig. 2, Fig. 3 and Fig. 5, specifically, the transmission gear 124 of the present embodiment has the annular ditch groove 124b around perforate 124a, and locating part 128 has ring-type fin 128a.Ring-type fin 128a stretches into annular ditch groove 124b and stops transmission gear 124 to move with respect to shell 112 along the direction of vertical axis A.In addition, the shell 112 of the present embodiment has annular ditch groove 112b, and transmission gear 124 has the ring-type fin 124c around perforate 124a.Ring-type fin 124c stretches into annular ditch groove 112b and stops transmission gear 124 to move with respect to shell 112 along the direction of vertical axis A.
In design, the center of circle of ring-type fin 128a, annular ditch groove 124b, ring-type fin 124c and annular ditch groove 112b is all positioned to axis A, so that transmission gear 124 is when rotate along axis A, ring-type fin 128a can rotate along annular ditch groove 124b, and ring-type fin 124c can rotate along annular ditch groove 112b, and can not limit the rotation of transmission gear 124.Spacing by above-mentioned locating part 128 and 112 pairs of transmission gears 124 of shell, can guarantee that transmission gear 124 only has the degree of freedom of rotating along axis A.
It should be noted that, in other embodiments, locating part 128 can annular ditch groove substituted cyclic fin 128a, and transmission gear 124 can ring-type fin substituted cyclic groove 124b, to allow its annular ditch groove of locating part 128 mats match with the ring-type fin of transmission gear 124, and reach limit effect same as described above.In addition, shell 112 can ring-type fin substituted cyclic groove 112b, and transmission gear 124 can annular ditch groove substituted cyclic fin 124c, to allow its ring-type fin of shell 112 mats match with the annular ditch groove of transmission gear 124, and reaches limit effect same as described above.This partly looks closely user's demand and design and determines, and the present invention does not limit.
The foot pad 129 of the present embodiment is along axis A, to be hubbed at the end 126a of double-screw bolt 126.By this, when double-screw bolt 126 is driven and while rotating along axis A, foot pad 129 can not rotate with respect to shell 112 and plane 50 along with double-screw bolt 126, and can avoid being difficult to start because of the excessive lifting module 120 that causes of the friction force between foot pad 129 and plane 50.More specifically, as shown in Figure 5, the foot pad 129 of the present embodiment has hole 129a, and double-screw bolt 126 has from the extended snap fit 126b of end 126a (illustrating as a plurality of), and snap fit 126b is limited in foot pad 129 through hole 129a the end 126a of double-screw bolt 126.The foot pad 129 of the present embodiment is to be articulated in snap fit 126b along axis A, and foot pad 129 is rotated with respect to double-screw bolt 126 along axis A.
In addition, the lifting module 120 of the present embodiment more comprises train of reduction gears 127, and train of reduction gears 127 is connected in motor 122 and is engaged in transmission gear 124.By the configuration of train of reduction gears 127, can make lifting module 120 there is larger driving force, to resist the weight of the main body 110 of projector 100, and then band nutating gear 124 and double-screw bolt 126 starts.
In sum, in the above embodiment of the present invention, motor drives double-screw bolt to move with respect to shell by transmission gear, so that the main body of projector rises or declines with respect to plane.Because the start of lifting module is to drive by motor, user must not prop up projector and rotate foot pad by manual mode with hand, convenience and security on therefore can lifting operation.In addition, spacing by locating part to transmission gear and double-screw bolt, can make one-piece construction more firm.
The above, it is only preferred embodiment of the present invention, when not limiting with this scope of the invention process, the simple equivalence of generally doing according to the claims in the present invention book and description changes and modifies, and is all still covered by the present invention within the scope of the patent.In addition, arbitrary embodiment of the present invention or claim must not reached whole objects or advantage or the feature that the present invention discloses.In addition, summary part and title are only the use for auxiliary patent document search, are not used for limiting the present invention's interest field.
Claims (16)
1.Yi Zhong projector, puts in a plane, and this projector comprises:
One main body, has a shell, and wherein this shell has one first opening; And
One lifting module, comprising:
One motor, is disposed in this shell;
One transmission gear, is disposed in this shell and couples this motor, and wherein this transmission gear has a perforate, and this perforate is to being positioned at this first opening, and this perforate inwall has an internal thread;
One double-screw bolt, is arranged in this perforate along an axis, and wherein this double-screw bolt has an external thread, and this external thread is engaged in this internal thread, and an end of this double-screw bolt passes this shell from this first opening;
One locating part, is fixed in this shell, and wherein this transmission gear is between this first opening and this locating part, and this locating part stops this transmission gear to move with respect to this shell along this axis; And
One foot pad, be connected in this end of this double-screw bolt and contact this plane, wherein this motor is in order to drive this transmission gear to rotate along this axis, and drive this double-screw bolt to move along this axis, to change the distance between this shell and this foot pad, this transmission gear has the annular ditch groove around this perforate, and this locating part has a ring-type fin, this ring-type fin stretches in this annular ditch groove and stops this transmission gear to move with respect to this shell along the direction of vertical this axis
Or this transmission gear has the ring-type fin around this perforate, this locating part has an annular ditch groove, and this ring-type fin stretches in this annular ditch groove and stops this transmission gear to move with respect to this shell along the direction of vertical this axis.
2. projector as claimed in claim 1, wherein, this shell has an annular ditch groove, and this transmission gear has the ring-type fin around this perforate, and this ring-type fin stretches in this annular ditch groove and stops this transmission gear to move with respect to this shell along the direction of vertical this axis.
3. projector as claimed in claim 1, wherein, this shell has a ring-type fin, and this transmission gear has the annular ditch groove around this perforate, and this ring-type fin stretches in this annular ditch groove and stops this transmission gear to move with respect to this shell along the direction of vertical this axis.
4. projector as claimed in claim 1, wherein, this locating part has one second opening, and this double-screw bolt is through this second opening.
5. projector as claimed in claim 1, wherein, this foot pad is hubbed at this end of this double-screw bolt along this axis.
6. projector as claimed in claim 1, wherein, this foot pad has a hole, and this double-screw bolt has from the extended snap fit of this end, and this snap fit is limited in this end through this hole by this foot pad.
7. projector as claimed in claim 6, wherein, this foot pad is articulated in this snap fit along this axis.
8. projector as claimed in claim 1, wherein, this lifting module more comprises a train of reduction gears, this train of reduction gears is connected in this motor and is engaged in this transmission gear.
9. a lifting module, for a projector, this projector puts in a plane, and this projector has a shell, and this shell has one first opening, and this lifting module comprises:
One motor, is disposed in this shell;
One transmission gear, is disposed in this shell and couples this motor, and wherein this transmission gear has a perforate, and this perforate is to being positioned at this first opening, and this perforate inwall has an internal thread;
One double-screw bolt, is arranged in this perforate along an axis, and wherein this double-screw bolt has an external thread, and this external thread is engaged in this internal thread, and an end of this double-screw bolt passes this shell from this first opening;
One locating part, is fixed in this shell, and wherein this transmission gear is between this first opening and this locating part, and this locating part stops this transmission gear to move with respect to this shell along this axis; And
One foot pad, be connected in this end of this double-screw bolt and contact this plane, wherein this motor is in order to drive this transmission gear to rotate along this axis, and drive this double-screw bolt to move along this axis, to change the distance between this shell and this foot pad, this transmission gear has the annular ditch groove around this perforate, and this locating part has a ring-type fin, this ring-type fin stretches into this annular ditch groove and stops this transmission gear to move with respect to this shell along the direction of vertical this axis
Or this transmission gear has the ring-type fin around this perforate, this locating part has an annular ditch groove, and this ring-type fin stretches into this annular ditch groove and stops this transmission gear to move with respect to this shell along the direction of vertical this axis.
10. lifting module as claimed in claim 9, wherein, this shell has an annular ditch groove, and this transmission gear has the ring-type fin around this perforate, and this ring-type fin stretches into this annular ditch groove and stops this transmission gear to move with respect to this shell along the direction of vertical this axis.
11. lifting modules as claimed in claim 9, wherein, this shell has a ring-type fin, and this transmission gear has the annular ditch groove around this perforate, and this ring-type fin stretches into this annular ditch groove and stops this transmission gear to move with respect to this shell along the direction of vertical this axis.
12. lifting modules as claimed in claim 9, wherein, this locating part has one second opening, and this double-screw bolt is through this second opening.
13. lifting modules as claimed in claim 9, wherein, this foot pad is hubbed at this end of this double-screw bolt along this axis.
14. lifting modules as claimed in claim 9, wherein, this foot pad has a hole, and this double-screw bolt has from the extended snap fit of this end, and this snap fit is limited in this end through this hole by this foot pad.
15. lifting modules as claimed in claim 14, wherein, this foot pad is articulated in this snap fit along this axis.
16. lifting modules as claimed in claim 9, more comprise a train of reduction gears, and this train of reduction gears is connected in this motor and is engaged in this transmission gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110052831.XA CN102654724B (en) | 2011-03-01 | 2011-03-01 | Projector and lifting module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110052831.XA CN102654724B (en) | 2011-03-01 | 2011-03-01 | Projector and lifting module thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102654724A CN102654724A (en) | 2012-09-05 |
| CN102654724B true CN102654724B (en) | 2014-10-15 |
Family
ID=46730361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110052831.XA Expired - Fee Related CN102654724B (en) | 2011-03-01 | 2011-03-01 | Projector and lifting module thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102654724B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4089309A1 (en) | 2013-10-11 | 2022-11-16 | Häfele SE & Co KG | Cabinet levelling apparatus |
| CN104678693B (en) * | 2013-12-03 | 2016-09-07 | 芜湖安曼特微显示科技有限公司 | A kind of projector adjusts pin arrangement mechanism |
| CN108957915B (en) * | 2017-05-17 | 2024-04-05 | 深圳光峰科技股份有限公司 | Adjusting bracket and projector |
| WO2019043660A1 (en) | 2017-09-04 | 2019-03-07 | Designerscope Limited | Cabinet levelling apparatus |
| CN109538734B (en) * | 2017-09-21 | 2021-04-30 | 深圳光峰科技股份有限公司 | Gear adjusting device and projection equipment |
| CN111669558B (en) * | 2020-07-09 | 2021-11-09 | 深圳市灿晶电子科技有限公司 | Novel projection terminal and using method thereof |
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| JPH0451128A (en) * | 1990-06-19 | 1992-02-19 | Sony Corp | Projection type video display device |
| JP2000138467A (en) * | 1998-10-30 | 2000-05-16 | Nikko Ind Corp | Adjustable leg for apparatus |
| JP2003005279A (en) * | 2001-06-20 | 2003-01-08 | Fujitsu General Ltd | Tilt device for projector |
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| JP2008116577A (en) * | 2006-11-01 | 2008-05-22 | Sharp Corp | Height adjustment device and projection type video display device |
| JP2008275932A (en) * | 2007-04-27 | 2008-11-13 | Sharp Corp | Height adjusting mechanism and projection type image display apparatus |
| CN101815415A (en) * | 2009-02-20 | 2010-08-25 | 和硕联合科技股份有限公司 | Foot pad adjustment module and foot pad adjustment method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI351576B (en) * | 2007-08-09 | 2011-11-01 | Benq Corp | Height adjustment device with fine tuning of an im |
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| JPH0451128A (en) * | 1990-06-19 | 1992-02-19 | Sony Corp | Projection type video display device |
| JP2000138467A (en) * | 1998-10-30 | 2000-05-16 | Nikko Ind Corp | Adjustable leg for apparatus |
| JP2003005279A (en) * | 2001-06-20 | 2003-01-08 | Fujitsu General Ltd | Tilt device for projector |
| JP2004013028A (en) * | 2002-06-10 | 2004-01-15 | Sony Corp | Picture projector |
| JP2008116577A (en) * | 2006-11-01 | 2008-05-22 | Sharp Corp | Height adjustment device and projection type video display device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN102654724A (en) | 2012-09-05 |
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