TWI396928B - Projecting apparatus - Google Patents
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- TWI396928B TWI396928B TW99120323A TW99120323A TWI396928B TW I396928 B TWI396928 B TW I396928B TW 99120323 A TW99120323 A TW 99120323A TW 99120323 A TW99120323 A TW 99120323A TW I396928 B TWI396928 B TW I396928B
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Description
本發明關於一種投影裝置，尤指一種具有升降功能，且可改變投影光線路徑之投影裝置。The present invention relates to a projection device, and more particularly to a projection device having a lifting function and capable of changing a path of a projected light.
投影機除了用在一般辦公室的會議報告外，由於具備視聽播放功能，亦經常於各種專題討論或學術課程中使用。可以預見地，隨著投影機的應用愈來愈廣泛，投影機的使用方式也變得愈來愈多樣化。一般而言，傳統的投影機只能將光線投射在其前方的投影平面上。換言之，當傳統的投影機放置於一平面上時，此傳統的投影機無法將光線投射在相同的平面上。由於傳統的投影機之投影光線路徑無法改變，因此在應用上會受到較多的限制。In addition to the conference reports used in general offices, the projectors are often used in various thematic discussions or academic courses due to their audiovisual playback capabilities. It is foreseeable that as projectors become more widely used, the use of projectors becomes more diverse. In general, a conventional projector can only project light onto the projection plane in front of it. In other words, when a conventional projector is placed on a plane, this conventional projector cannot project light onto the same plane. Since the projection path of a conventional projector cannot be changed, it is subject to more restrictions in application.
本發明的目的之一在於提供一種投影裝置，其具有升降功能。One of the objects of the present invention is to provide a projection apparatus having a lifting function.
本發明的另一目的在於提供一種投影裝置，其可改變投影光線路徑。Another object of the present invention is to provide a projection apparatus that can change a projected light path.
根據一實施例，本發明之投影裝置包含一底座、一第一側牆、一第一移動平台、一傳動件、一傳動皮帶、一第一滑動件、一第二移動平台以及一投影單元。第一側牆設置於底座上。第一移動平台可移動地設置在第一側牆上。傳動件之一端樞接於第一移動平台。傳動皮帶可轉動地設置於傳動件上。第一滑動件之一端樞接於側牆，而第一滑動件之另一端可移動地設置於傳動件上，且固定於傳動皮帶上。第二移動平台可移動地設置於傳動件上，且固定於傳動皮帶上。第二移動平台與第一滑動件相對設置。投影單元設置於第二移動平台上。當第一移動平台相對底座移動時，第一移動平台帶動傳動件移動，傳動件相對第一移動平台轉動，第一滑動件相對側牆轉動，且傳動皮帶相對傳動件轉動，以帶動第二移動平台相對傳動件移動。According to an embodiment, the projection apparatus of the present invention comprises a base, a first side wall, a first moving platform, a transmission member, a transmission belt, a first sliding member, a second moving platform and a projection unit. The first side wall is placed on the base. The first mobile platform is movably disposed on the first side wall. One end of the transmission member is pivotally connected to the first mobile platform. The drive belt is rotatably disposed on the transmission member. One end of the first sliding member is pivotally connected to the side wall, and the other end of the first sliding member is movably disposed on the transmission member and fixed to the transmission belt. The second moving platform is movably disposed on the transmission member and fixed to the transmission belt. The second moving platform is disposed opposite to the first sliding member. The projection unit is disposed on the second mobile platform. When the first moving platform moves relative to the base, the first moving platform drives the transmission member to move, the transmission member rotates relative to the first moving platform, the first sliding member rotates relative to the side wall, and the transmission belt rotates relative to the transmission member to drive the second movement. The platform moves relative to the transmission.
於此實施例中，投影裝置更可包含一反射鏡，樞接於第二移動平台。反射鏡反射自投影單元投射出之光線，以改變投影光線路徑。舉例而言，當底座放置於一平面上，且第二移動平台相對傳動件移動至一投影位置時，反射鏡可將投影單元投射出之光線反射至相同的平面。In this embodiment, the projection device further includes a mirror pivotally connected to the second mobile platform. The mirror reflects the light projected from the projection unit to change the path of the projected light. For example, when the base is placed on a plane and the second moving platform is moved to a projection position relative to the transmission member, the mirror can reflect the light projected by the projection unit to the same plane.
因此，根據上述之機構設計，當第一移動平台相對底座移動時，投影單元也會隨著第二移動平台被帶動，進而達到升降的功能。此外，本發明之投影裝置可利用反射鏡反射自投影單元投射出之光線，以改變投影光線路徑，使得本發明之投影裝置的應用範圍更廣泛。Therefore, according to the above-mentioned mechanism design, when the first moving platform moves relative to the base, the projection unit is also driven along with the second moving platform, thereby achieving the function of lifting and lowering. In addition, the projection device of the present invention can reflect the light projected from the projection unit by the mirror to change the projected light path, so that the projection device of the present invention has a wider application range.
關於本發明之優點與精神可以藉由以下的發明詳述及所附圖式得到進一步的瞭解。The advantages and spirit of the present invention will be further understood from the following detailed description of the invention.
請參閱第1圖至第5圖，第1圖為根據本發明一實施例之投影裝置1的立體圖，其中第二移動平台22處於一收合位置；第2圖為第1圖中的投影裝置1的側視圖；第3圖為第1圖中的投影裝置1於另一視角的立體圖；第4圖為第1圖中的第一移動平台14的立體圖；第5圖為第3圖中的傳動件16的內視圖。Please refer to FIG. 1 to FIG. 5 . FIG. 1 is a perspective view of a projection apparatus 1 according to an embodiment of the present invention, wherein the second moving platform 22 is in a folded position; and FIG. 2 is a projection apparatus in FIG. 1 . 1 is a side view; FIG. 3 is a perspective view of the projection device 1 in FIG. 1 in another view; FIG. 4 is a perspective view of the first moving platform 14 in FIG. 1; An internal view of the transmission member 16.
如第1圖、第3圖及第5圖所示，投影裝置1包含一底座10、一第一側牆12、一第二側牆13、一第一移動平台14、一傳動件16、一傳動皮帶18、一第一滑動件20、一第二滑動件21、一第二移動平台22、一投影單元24、一反射鏡26、一齒條28、複數個滑軌30、一驅動單元32以及一齒輪組34。第一側牆12與第二側牆13皆設置於底座10上。於此實施例中，投影裝置1包含三個滑軌30及一個齒條28，該些滑軌30分別設置於第一側牆12或第二側牆13之內側面，而齒條28則設置於第二側牆13之內側面。然而，滑軌30係用以配合齒條28，使第一移動平台14可以平順地相對底座10移動，因此滑軌30的數量並不以三個為限，且齒條28也不限設置第二側牆13上(亦可設置於第一側牆12上)，可視實際應用而決定。As shown in FIG. 1 , FIG. 3 and FIG. 5 , the projection device 1 includes a base 10 , a first side wall 12 , a second side wall 13 , a first moving platform 14 , a transmission component 16 , and a The transmission belt 18, a first sliding member 20, a second sliding member 21, a second moving platform 22, a projection unit 24, a mirror 26, a rack 28, a plurality of slide rails 30, and a driving unit 32 And a gear set 34. The first side wall 12 and the second side wall 13 are both disposed on the base 10. In this embodiment, the projection device 1 includes three slide rails 30 and one rack 28, and the slide rails 30 are respectively disposed on the inner side surfaces of the first side wall 12 or the second side wall 13, and the racks 28 are disposed. On the inner side of the second side wall 13. However, the slide rail 30 is used to cooperate with the rack 28, so that the first moving platform 14 can smoothly move relative to the base 10. Therefore, the number of the slide rails 30 is not limited to three, and the rack 28 is not limited to the first. The two side walls 13 (which may also be disposed on the first side wall 12) may be determined according to practical applications.
如第4圖所示，第一移動平台14包含三個滑動部140。於此實施例中，每一個滑動部140分別可移動地設置在第1圖中的三個滑軌30的其中之一中。需說明的是，滑動部140的數量係與滑軌30的數量相配合。換言之，滑動部140的數量亦不以三個為限，可視實際應用而決定。於實際應用中，可在每一個滑動部140上設置滑輪142，以使每一個滑動部140可在對應的滑軌30中平順地移動。As shown in FIG. 4, the first moving platform 14 includes three sliding portions 140. In this embodiment, each of the sliding portions 140 is movably disposed in one of the three slide rails 30 in FIG. 1, respectively. It should be noted that the number of the sliding portions 140 is matched with the number of the slide rails 30. In other words, the number of the sliding portions 140 is not limited to three, and may be determined depending on the actual application. In practical applications, pulleys 142 may be provided on each of the sliding portions 140 such that each of the sliding portions 140 can smoothly move in the corresponding sliding rails 30.
驅動單元32設置於第一移動平台14上，齒輪組34則連接於驅動單元32且嚙合於齒條28。於此實施例中，驅動單元32可為一馬達。齒輪組34包含一第一齒輪340以及一第二齒輪342。第一齒輪340連接於驅動單元32之輸出端320。第二齒輪342樞接於第一移動平台14且分別嚙合於第一齒輪340與齒條28。藉此，當驅動單元32運作時，即可驅動第一齒輪340，並帶動第二齒輪342相對齒條28轉動，以使第一移動平台14相對底座10移動。如第1圖所示，若第二齒輪342朝順時針的方向轉動，則第一移動平台14會被帶動朝遠離底座10的方向移動；若第二齒輪342朝逆時針的方向轉動，則第一移動平台14會被帶動朝接近底座10的方向移動。於此實施例中，可將第一齒輪340之齒數設計為少於第二齒輪342之齒數，以對驅動單元32之輸出進行減速。需說明的是，第一齒輪340之齒數與第二齒輪342之齒數可配合齒條28做設計，視實際應用而定。The driving unit 32 is disposed on the first moving platform 14, and the gear set 34 is coupled to the driving unit 32 and meshed with the rack 28. In this embodiment, the drive unit 32 can be a motor. Gear set 34 includes a first gear 340 and a second gear 342. The first gear 340 is coupled to the output 320 of the drive unit 32. The second gear 342 is pivotally connected to the first moving platform 14 and meshed with the first gear 340 and the rack 28 respectively. Thereby, when the driving unit 32 operates, the first gear 340 can be driven and the second gear 342 can be rotated relative to the rack 28 to move the first moving platform 14 relative to the base 10. As shown in FIG. 1, if the second gear 342 is rotated in the clockwise direction, the first moving platform 14 is driven to move away from the base 10; if the second gear 342 is rotated counterclockwise, the first A moving platform 14 is driven to move toward the base 10. In this embodiment, the number of teeth of the first gear 340 can be designed to be smaller than the number of teeth of the second gear 342 to decelerate the output of the drive unit 32. It should be noted that the number of teeth of the first gear 340 and the number of teeth of the second gear 342 can be designed in accordance with the rack 28, depending on the actual application.
傳動皮帶18可轉動地設置於傳動件16上。傳動件16之一端藉由一可轉動的軸件36樞接於第一移動平台14。於此實施例中，傳動件16可由兩殼體160組成。如第5圖所示，殼體160中具有一凹槽162，且傳動皮帶18可轉動地設置於凹槽162中。第一滑動件20之一端藉由一可轉動的軸件38樞接於第一側牆12，而第一滑動件20之另一端可移動地設置於傳動件16之凹槽162中，且固定於傳動皮帶18上。此外，第二移動平台22連接於第二滑動件21之一端，而第二滑動件21之另一端可移動地設置於傳動件16之凹槽162中，且固定於傳動皮帶18上。如第5圖所示，與第二滑動件21連接之第二移動平台22與第一滑動件20相對設置。此外，投影單元24設置於第二移動平台22上，而反射鏡26藉由一可轉動的軸件40樞接於第二移動平台22。於此實施例中，投影單元24可為一般的投影機。The drive belt 18 is rotatably disposed on the transmission member 16. One end of the transmission member 16 is pivotally coupled to the first moving platform 14 by a rotatable shaft member 36. In this embodiment, the transmission member 16 can be comprised of two housings 160. As shown in FIG. 5, the housing 160 has a recess 162 therein, and the drive belt 18 is rotatably disposed in the recess 162. One end of the first sliding member 20 is pivotally connected to the first side wall 12 by a rotatable shaft member 38, and the other end of the first sliding member 20 is movably disposed in the recess 162 of the transmission member 16 and fixed. On the drive belt 18. In addition, the second moving platform 22 is coupled to one end of the second slider 21, and the other end of the second slider 21 is movably disposed in the recess 162 of the transmission member 16 and is fixed to the transmission belt 18. As shown in FIG. 5, the second moving platform 22 connected to the second slider 21 is disposed opposite to the first slider 20. In addition, the projection unit 24 is disposed on the second moving platform 22, and the mirror 26 is pivotally connected to the second moving platform 22 by a rotatable shaft member 40. In this embodiment, the projection unit 24 can be a general projector.
請參閱第6圖至第8圖，第6圖為第2圖中的第一移動平台14朝遠離底座10的方向移動後的側視圖，第7圖為第6圖中的傳動件16的內視圖，第8圖為第2圖中的第一移動平台14帶動第二移動平台22移動至一投影位置的側視圖。當驅動單元32開始運作，以驅動第一齒輪340轉動，並帶動第二齒輪342朝順時針的方向轉動時，第一移動平台14會被帶動朝遠離底座10的方向移動。此時，第一移動平台14會帶動傳動件16向上移動，且傳動件16以軸件36為軸心相對第一移動平台14轉動，如第2圖與第6圖所示。同時，第一滑動件20以軸件38為軸心相對第一側牆12轉動。由於第一滑動件20的一端樞接於第一側牆12，且第一滑動件20的另一端與第二移動平台22之第二滑動件21的一端分別固定於傳動皮帶18上，傳動皮帶18即會相對傳動件16轉動，以帶動與第二滑動件21連接之第二移動平台22相對傳動件16移動，如第5圖與第7圖所示。最後，第二移動平台22即會被帶動而相對傳動件16移動至一投影位置，如第8圖所示。此時，投影單元24及反射鏡26係搭配使用，反射鏡26即可將投影單元24投射出之光線42反射至底座10所放置的平面44上，進而於平面44上形成投影畫面46。於實際應用中，依據反射原理，可藉由投影單元24與反射鏡26之高度與角度的配合設計，來調整所需的投影畫面46的大小。Please refer to FIG. 6 to FIG. 8. FIG. 6 is a side view of the first moving platform 14 in FIG. 2 moving away from the base 10, and FIG. 7 is the inside of the transmission member 16 in FIG. View, Fig. 8 is a side view of the first moving platform 14 in Fig. 2 driving the second moving platform 22 to a projected position. When the driving unit 32 starts to operate to drive the first gear 340 to rotate and drive the second gear 342 to rotate in the clockwise direction, the first moving platform 14 is driven to move away from the base 10. At this time, the first moving platform 14 will drive the transmission member 16 to move upward, and the transmission member 16 rotates relative to the first moving platform 14 with the shaft member 36 as an axis, as shown in FIGS. 2 and 6. At the same time, the first sliding member 20 rotates relative to the first side wall 12 with the shaft member 38 as an axis. Since one end of the first sliding member 20 is pivotally connected to the first side wall 12, and the other end of the first sliding member 20 and one end of the second sliding member 21 of the second moving platform 22 are respectively fixed on the transmission belt 18, the transmission belt 18 will rotate relative to the transmission member 16 to drive the second moving platform 22 coupled to the second slider 21 to move relative to the transmission member 16, as shown in FIGS. 5 and 7. Finally, the second moving platform 22 will be driven to move relative to the transmission member 16 to a projected position, as shown in FIG. At this time, the projection unit 24 and the mirror 26 are used in combination, and the mirror 26 can reflect the light 42 projected by the projection unit 24 onto the plane 44 on which the base 10 is placed, thereby forming a projection screen 46 on the plane 44. In practical applications, according to the reflection principle, the required projection screen 46 can be adjusted by the matching design of the height and angle of the projection unit 24 and the mirror 26.
另一方面，當投影裝置1使用完畢後，可使驅動單元32驅動第一齒輪340轉動，並帶動第二齒輪342朝逆時針的方向轉動，進而使第一移動平台14朝接近底座10的方向移動。此時，第一移動平台14會帶動傳動件16向下移動，且傳動件16以軸件36為軸心相對第一移動平台14轉動。同時，第一滑動件20以軸件38為軸心相對第一側牆12轉動，且傳動皮帶18相對傳動件16轉動，以帶動與第二滑動件21連接之第二移動平台22相對傳動件16移動。最後，第二移動平台22即會被帶動而相對傳動件16從第8圖所示的投影位置移動至第2圖所示的收合位置。需說明的是，若反射鏡26在收合的過程中碰觸傳動件16，則反射鏡26會以軸件40為軸心相對第二移動平台22轉動，如第2圖所示。藉此，可避免反射鏡26在收合的過程中因碰觸傳動件16而損壞。當第二移動平台22被帶動而相對傳動件16從第2圖所示的收合位置移動至第8圖所示的投影位置時，反射鏡26即會因重力作用而自動下垂到定位。On the other hand, when the projection device 1 is used, the driving unit 32 can drive the first gear 340 to rotate, and rotate the second gear 342 in the counterclockwise direction, thereby bringing the first moving platform 14 toward the base 10. mobile. At this time, the first moving platform 14 will drive the transmission member 16 to move downward, and the transmission member 16 rotates relative to the first moving platform 14 with the shaft member 36 as an axis. At the same time, the first sliding member 20 rotates relative to the first side wall 12 with the shaft member 38 as an axis, and the transmission belt 18 rotates relative to the transmission member 16 to drive the second moving platform 22 connected with the second sliding member 21 to the transmission member. 16 moves. Finally, the second moving platform 22 is driven to move from the projected position shown in Fig. 8 to the folding position shown in Fig. 2 with respect to the transmission member 16. It should be noted that if the mirror 26 touches the transmission member 16 during the folding process, the mirror 26 will rotate relative to the second moving platform 22 with the shaft member 40 as an axis, as shown in FIG. Thereby, it is possible to prevent the mirror 26 from being damaged by the contact with the transmission member 16 during the folding process. When the second moving platform 22 is driven to move relative to the transmission member 16 from the retracted position shown in FIG. 2 to the projected position shown in FIG. 8, the mirror 26 automatically hangs down to the position due to gravity.
相較於先前技術，根據上述之機構設計，當第一移動平台相對底座移動時，投影單元也會隨著第二移動平台被帶動，進而達到升降的功能。此外，本發明之投影裝置可利用反射鏡反射自投影單元投射出之光線，以改變投影光線路徑，使得本發明之投影裝置的應用範圍更廣泛。Compared with the prior art, according to the above-mentioned mechanism design, when the first moving platform moves relative to the base, the projection unit is also driven along with the second moving platform, thereby achieving the function of lifting and lowering. In addition, the projection device of the present invention can reflect the light projected from the projection unit by the mirror to change the projected light path, so that the projection device of the present invention has a wider application range.
以上所述僅為本發明之較佳實施例，凡依本發明申請專利範圍所做之均等變化與修飾，皆應屬本發明之涵蓋範圍。The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.
1．．．投影裝置1. . . Projection device
10．．．底座10. . . Base
12．．．第一側牆12. . . First side wall
13．．．第二側牆13. . . Second side wall
14．．．第一移動平台14. . . First mobile platform
16．．．傳動件16. . . Transmission Parts
18．．．傳動皮帶18. . . Transmission belt
20．．．第一滑動件20. . . First slide
21．．．第二滑動件twenty one. . . Second slide
22．．．第二移動平台twenty two. . . Second mobile platform
24．．．投影單元twenty four. . . Projection unit
26．．．反射鏡26. . . Reflector
28．．．齒條28. . . rack
30．．．滑軌30. . . Slide rail
32．．．驅動單元32. . . Drive unit
34．．．齒輪組34. . . Gear set
36、38、40．．．軸件36, 38, 40. . . Shaft
42．．．光線42. . . Light
44．．．平面44. . . flat
46．．．投影畫面46. . . Projection screen
140．．．滑動部140. . . Sliding portion
142．．．滑輪142. . . pulley
160．．．殼體160. . . case
162．．．凹槽162. . . Groove
320．．．輸出軸320. . . Output shaft
340．．．第一齒輪340. . . First gear
342．．．第二齒輪342. . . Second gear
第1圖為根據本發明一實施例之投影裝置的立體圖，其中第二移動平台處於一收合位置。1 is a perspective view of a projection apparatus in accordance with an embodiment of the present invention, wherein the second mobile platform is in a collapsed position.
第2圖為第1圖中的投影裝置的側視圖。Fig. 2 is a side view of the projection device in Fig. 1.
第3圖為第1圖中的投影裝置於另一視角的立體圖。Fig. 3 is a perspective view of the projection device of Fig. 1 from another perspective.
第4圖為第1圖中的第一移動平台的立體圖。Fig. 4 is a perspective view of the first moving platform in Fig. 1.
第5圖為第3圖中的傳動件的內視圖。Fig. 5 is an internal view of the transmission member in Fig. 3.
第6圖為第2圖中的第一移動平台朝遠離底座的方向移動後的側視圖。Fig. 6 is a side view of the first moving platform in Fig. 2 after moving away from the base.
第7圖為第6圖中的傳動件的內視圖。Fig. 7 is an internal view of the transmission member in Fig. 6.
第8圖為第2圖中的第一移動平台帶動第二移動平台移動至一投影位置的側視圖。Figure 8 is a side view of the first moving platform in Figure 2 driving the second moving platform to a projected position.
1．．．投影裝置1. . . Projection device
10．．．底座10. . . Base
12．．．第一側牆12. . . First side wall
13．．．第二側牆13. . . Second side wall
14．．．第一移動平台14. . . First mobile platform
16．．．傳動件16. . . Transmission Parts
20．．．第一滑動件20. . . First slide
22．．．第二移動平台twenty two. . . Second mobile platform
24．．．投影單元twenty four. . . Projection unit
26．．．反射鏡26. . . Reflector
28．．．齒條28. . . rack
30．．．滑軌30. . . Slide rail
34．．．齒輪組34. . . Gear set
38、40．．．軸件38, 40. . . Shaft
160．．．殼體160. . . case
320．．．輸出軸320. . . Output shaft
340．．．第一齒輪340. . . First gear
342．．．第二齒輪342. . . Second gear
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW99120323A TWI396928B (en) | 2010-06-22 | 2010-06-22 | Projecting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW99120323A TWI396928B (en) | 2010-06-22 | 2010-06-22 | Projecting apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201200954A TW201200954A (en) | 2012-01-01 |
| TWI396928B true TWI396928B (en) | 2013-05-21 |
Family
ID=46755596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW99120323A TWI396928B (en) | 2010-06-22 | 2010-06-22 | Projecting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWI396928B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107030733B (en) * | 2017-06-19 | 2023-08-04 | 合肥虹慧达科技有限公司 | Wheeled robot |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5551658A (en) * | 1994-08-15 | 1996-09-03 | Chief Manufacturing, Inc. | Projector lift system |
| JP2007315435A (en) * | 2006-05-23 | 2007-12-06 | Sharp Corp | Height adjusting device and projection type image display device |
-
2010
- 2010-06-22 TW TW99120323A patent/TWI396928B/en not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5551658A (en) * | 1994-08-15 | 1996-09-03 | Chief Manufacturing, Inc. | Projector lift system |
| JP2007315435A (en) * | 2006-05-23 | 2007-12-06 | Sharp Corp | Height adjusting device and projection type image display device |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201200954A (en) | 2012-01-01 |
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| MM4A | Annulment or lapse of patent due to non-payment of fees |