WO2007140646A1 - Écran de projection et moyen d'enroulement-deroulement utilisé pour ceux-ci - Google Patents

Écran de projection et moyen d'enroulement-deroulement utilisé pour ceux-ci Download PDF

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Publication number
WO2007140646A1
WO2007140646A1 PCT/CN2006/001172 CN2006001172W WO2007140646A1 WO 2007140646 A1 WO2007140646 A1 WO 2007140646A1 CN 2006001172 W CN2006001172 W CN 2006001172W WO 2007140646 A1 WO2007140646 A1 WO 2007140646A1
Authority
WO
WIPO (PCT)
Prior art keywords
projection screen
retarder
projector
elastic
shaft set
Prior art date
Application number
PCT/CN2006/001172
Other languages
English (en)
Chinese (zh)
Inventor
Huan-Chieh Chen
Original Assignee
Huan-Chieh Chen
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Huan-Chieh Chen filed Critical Huan-Chieh Chen
Priority to PCT/CN2006/001172 priority Critical patent/WO2007140646A1/fr
Publication of WO2007140646A1 publication Critical patent/WO2007140646A1/fr

Links

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
    • G03B21/54—Accessories
    • 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
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/58—Projection screens collapsible, e.g. foldable; of variable area

Definitions

  • the present invention relates to a projection screen of a projector and a reeling device thereof, and more particularly to a projection screen and a mechanism for rewinding the projection screen.
  • the visual effect of the screen is most directly felt by the user, and the larger the screen, the longer the projection distance due to the focusing factor, so that the user can view the wider space farther than the user.
  • Audio-visual equipment manufacturers in addition to constantly pursuing a larger screen area in the size of the liquid crystal display panel; another type of development design , which is directed to the visual type projected by the projector to the projection screen and the projector device. Since the projector is less limited in size than the projection screen, such projectors are widely used in traditional theaters, home movie equipment, conferences. The hall, the presentation room, etc. provide space and environment for more people to watch.
  • the main object of the present invention is to provide a projection screen for a projector and a rewinding device thereof, which mainly includes a projection screen, and one side of the projection screen is fixed to a shaft set, and the projection cloth
  • the other open side of the screen is provided with a grip portion; and a shaft rod group, the first end portion of the shaft rod group is fixedly provided with an elastic retracting mechanism, and the elastic retracting mechanism is provided with a bead chain reel: and the shaft
  • the second end of the rod set is provided with a retarder to buffer the elastic force of the elastic retracting mechanism;
  • the user pulls the projection screen manually, and the elastic retracting mechanism of the elastic retracting mechanism forms a linkage for the shaft group to form an elastic retraction for the projection screen, thereby forming a Fully automatic electric coil equipment and pure manual manpower retraction, a so-called "semi-automatic", simple, economical and labor-saving reeling device that is acceptable to the general public.
  • a second object of the present invention is to implement the projection screen of the projector and the winding device thereof, wherein the shaft set includes a main rod body, and the main rod body is connected to the retarder.
  • the second object of the present invention is to implement the projection screen of the projector and the winding device thereof, wherein the retarder has a slot on the outer edge, and the retarder is accommodated in a sleeve, and the sleeve extends inward.
  • the rail ribs are relatively incorporated into the slot, so that the bead chain reel can form a state in which the main rod can be linked, the main rod is linked to the retarder, and the sleeve is swayed by the retarder.
  • Still another object of the present invention is to implement the projection screen of the projector and the winding device thereof, wherein the second end portion is provided with one end, and the outer side of the end is provided with a side plate, and the side plate and the first end portion are provided.
  • the other side panel can be screwed to the ceiling of the room.
  • Figure 1 is an exploded perspective view of the shaft set of the present invention
  • Figure 2 is a combined plan view of the shaft set of the present invention
  • Figure 3 is a perspective view of the use state of the present invention.
  • Figure 4 shows the three-dimensional (II) diagram of the state of use of the present invention.
  • the present invention relates to a projection screen of a projector and a rewinding device thereof, which mainly include:
  • a projection screen 1 (See Figure 3 for the projection screen)
  • the projection screen 1 is fixed on one side of the shaft set 2, and the other open side of the projection screen is provided with a grip portion 11;
  • the first end portion 21A of the shaft set 2 is fixedly provided with an elastic retracting mechanism 22, and the elastic retracting mechanism 22 includes a spring 221, and further includes a bead chain puller 23, the bead chain pulling 23 - a loop state, and two bead chains 23A, 23B are presented, wherein when the bead chain (23A) behind one figure is pulled down, the projection screen 1 is lowered; and when the other front bead chain 23B is pulled down, The projection screen 1 is recovered; further, the second end portion 21B of the shaft set 2 is provided with a retarder 24 to buffer the elastic force of the elastic retracting mechanism 22.
  • the shaft set 1 may comprise a main rod body 25, and the main rod body 25 is connected to a slow
  • the speed bumper 24 has a recess 241 on the outer edge of the retarder 24, and the retarder 24 is accommodated in a sleeve 26, and the sleeve 26 extends inwardly with a rail rib 261, and the rail rib 261 is relatively inserted into the slot In 241, ⁇ the bead chain puller 23 is formed to be able to interlock the main rod 25, the main rod 25 is interlocked with the retarder 24, and the sleeve 26 is tilted by the retarder 24; and the bead chain puller 23
  • a threading device 22 is disposed on the outer side of the threading device 22, and the through hole 221 of the stringing device 22 can accommodate the bead chain 23 to be penetrated by the through hole.
  • the second end portion 21B is provided with an end end 27, the outer side of the end end 27 is provided with a side plate 28, which is provided with the first end portion 21A.
  • the other side plate 29 can be locked to the ceiling of the room by screws 281, 291, and the like.
  • the present invention further provides a retarder 24 to slow down the recovery speed, which is easy to cause in order to avoid the recovery speed being too fast.
  • the bumper, or the recovery power is too large, which is easy to cause the loss of the projection screen 1, etc.; the grip portion 11 is formed to allow the user to hold the manual projection 1 and the elastic retracting mechanism
  • the elastic retracting action of 22 forms a linkage for the shaft set to form an elastically retractable for the projection screen 1.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)

Abstract

La présente invention concerne un moyen d'enroulement-déroulement utilisé pour des écrans de projections (1) et comprenant un écran de projection (1) fixé à un groupe d'arbres (2) au niveau d'une extrémité et formant un bouton (11) à l'autre extrémité, ainsi qu'un groupe d'arbres (2) dont la première extrémité est pourvue d'un élément d'enroulement-déroulement à ressort (22) possédant une chaîne sertie (23) et dont la seconde extrémité est pourvue d'un ralentisseur (24) destiné à amortir la résilience de l'élément d'enroulement-déroulement à ressort (22). L'utilisateur peut dérouler l'écran de projection (1) en tirant le bouton (11). L'écran de projection (1) est enroulé élastiquement et lentement sous l'effet de l'élément d'enroulement-déroulement à ressort (22) et du ralentisseur (24).
PCT/CN2006/001172 2006-05-31 2006-05-31 Écran de projection et moyen d'enroulement-deroulement utilisé pour ceux-ci WO2007140646A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2006/001172 WO2007140646A1 (fr) 2006-05-31 2006-05-31 Écran de projection et moyen d'enroulement-deroulement utilisé pour ceux-ci

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2006/001172 WO2007140646A1 (fr) 2006-05-31 2006-05-31 Écran de projection et moyen d'enroulement-deroulement utilisé pour ceux-ci

Publications (1)

Publication Number Publication Date
WO2007140646A1 true WO2007140646A1 (fr) 2007-12-13

Family

ID=38801033

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2006/001172 WO2007140646A1 (fr) 2006-05-31 2006-05-31 Écran de projection et moyen d'enroulement-deroulement utilisé pour ceux-ci

Country Status (1)

Country Link
WO (1) WO2007140646A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112634683A (zh) * 2021-01-19 2021-04-09 河南工业贸易职业学院 一种便携式财税大数据信息讲解用投影扩音装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4476910A (en) * 1981-02-10 1984-10-16 Kabushiki Kaisha Nichibei Roll-blind
CN2264549Y (zh) * 1995-08-30 1997-10-15 鲁京 一种卷帘式窗帘
CN2305917Y (zh) * 1997-08-25 1999-02-03 张黎 弹簧卷轴式窗帘杆
CN2352660Y (zh) * 1998-11-17 1999-12-08 武进市美佳丽装饰制品有限公司 自定位弹力式卷帘装置
JP2000145334A (ja) * 1998-11-10 2000-05-26 Sm Ind Co Ltd 幕体巻取り装置
US6443210B1 (en) * 1997-12-12 2002-09-03 Hunter Douglas Industries Bv Winding mechanism
CN2720483Y (zh) * 2004-08-13 2005-08-24 广州美视晶莹银幕有限公司 投影幕减速机构
CN1720384A (zh) * 2002-12-04 2006-01-11 郭在锡 卷帘用减速装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4476910A (en) * 1981-02-10 1984-10-16 Kabushiki Kaisha Nichibei Roll-blind
CN2264549Y (zh) * 1995-08-30 1997-10-15 鲁京 一种卷帘式窗帘
CN2305917Y (zh) * 1997-08-25 1999-02-03 张黎 弹簧卷轴式窗帘杆
US6443210B1 (en) * 1997-12-12 2002-09-03 Hunter Douglas Industries Bv Winding mechanism
JP2000145334A (ja) * 1998-11-10 2000-05-26 Sm Ind Co Ltd 幕体巻取り装置
CN2352660Y (zh) * 1998-11-17 1999-12-08 武进市美佳丽装饰制品有限公司 自定位弹力式卷帘装置
CN1720384A (zh) * 2002-12-04 2006-01-11 郭在锡 卷帘用减速装置
CN2720483Y (zh) * 2004-08-13 2005-08-24 广州美视晶莹银幕有限公司 投影幕减速机构

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112634683A (zh) * 2021-01-19 2021-04-09 河南工业贸易职业学院 一种便携式财税大数据信息讲解用投影扩音装置

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