FR2889749B3 - Mecanisme de deceleration et de blocage pour un ecran de projection et ecran de projection a commande manuelle utilisant ce mecanisme - Google Patents

Mecanisme de deceleration et de blocage pour un ecran de projection et ecran de projection a commande manuelle utilisant ce mecanisme

Info

Publication number
FR2889749B3
FR2889749B3 FR0606763A FR0606763A FR2889749B3 FR 2889749 B3 FR2889749 B3 FR 2889749B3 FR 0606763 A FR0606763 A FR 0606763A FR 0606763 A FR0606763 A FR 0606763A FR 2889749 B3 FR2889749 B3 FR 2889749B3
Authority
FR
France
Prior art keywords
projection screen
deceleration
manually controlled
locking mechanism
locking
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 - Lifetime
Application number
FR0606763A
Other languages
English (en)
Other versions
FR2889749A3 (fr
Inventor
Chaotong Liang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Grandview Crystal Screen Co Ltd
Original Assignee
Guangzhou Grandview Crystal Screen Co Ltd
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
Priority claimed from CN 200520063196 external-priority patent/CN2840111Y/zh
Priority claimed from CNB2005101009432A external-priority patent/CN100353257C/zh
Priority claimed from CN 200520066818 external-priority patent/CN2874558Y/zh
Application filed by Guangzhou Grandview Crystal Screen Co Ltd filed Critical Guangzhou Grandview Crystal Screen Co Ltd
Publication of FR2889749A3 publication Critical patent/FR2889749A3/fr
Application granted granted Critical
Publication of FR2889749B3 publication Critical patent/FR2889749B3/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Braking Arrangements (AREA)
FR0606763A 2005-08-12 2006-07-24 Mecanisme de deceleration et de blocage pour un ecran de projection et ecran de projection a commande manuelle utilisant ce mecanisme Expired - Lifetime FR2889749B3 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN 200520063196 CN2840111Y (zh) 2005-08-12 2005-08-12 投影幕减速定位机构
CNB2005101009432A CN100353257C (zh) 2005-11-01 2005-11-01 无褶皱手动投影幕
CN 200520066818 CN2874558Y (zh) 2005-11-01 2005-11-01 无褶皱手动投影幕

Publications (2)

Publication Number Publication Date
FR2889749A3 FR2889749A3 (fr) 2007-02-16
FR2889749B3 true FR2889749B3 (fr) 2007-06-22

Family

ID=37685377

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0606763A Expired - Lifetime FR2889749B3 (fr) 2005-08-12 2006-07-24 Mecanisme de deceleration et de blocage pour un ecran de projection et ecran de projection a commande manuelle utilisant ce mecanisme

Country Status (3)

Country Link
US (1) US7706067B2 (fr)
JP (1) JP3126248U (fr)
FR (1) FR2889749B3 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI381240B (zh) * 2008-06-24 2013-01-01 Aixin Technologies Llc 減速裝置與投影幕捲放機構
TWI364502B (en) * 2009-03-30 2012-05-21 Aixin Technologies Llc Transmission mechanism
TW201443331A (zh) * 2013-05-13 2014-11-16 zhong-xian Xie 用於電動捲門之門片防墜落裝置
US9194176B2 (en) * 2013-12-20 2015-11-24 Hsiao-Yin Chen Damping positioner
US9593530B1 (en) 2015-08-18 2017-03-14 Hunter Douglas Inc. Brake assembly for a covering for an architectural opening
CN114046403A (zh) * 2021-11-04 2022-02-15 郭文 基于公益林管护用便携式具有警示功能的指示装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2946377A (en) * 1958-03-17 1960-07-26 Wilson J G Corp Temperature-operated rolling steel doors
US3251264A (en) * 1962-04-05 1966-05-17 Radiant Mfg Corp Projection screen and method
US3349876A (en) * 1967-03-06 1967-10-31 Int Steel Co Revolving door operating mechanism and speed controller
JPS58165188U (ja) * 1982-04-30 1983-11-02 ト−ソ−株式会社 ロ−ルブラインドの減速装置
US4674550A (en) * 1984-08-06 1987-06-23 Newell Co. Window shade motor and roller assembly
IT208635Z2 (it) * 1986-12-17 1988-05-28 Mottura Spa Tenda a rullo con freno a masse centrifughe disposto all esterno del rullo e sopporto d estremita includente tale freno
ES2288073B1 (es) * 2005-06-17 2009-02-01 Miguel Emper Sanchez Dispositivo autobloqueante perfeccionado para persianas y cierres.

Also Published As

Publication number Publication date
US20070035828A1 (en) 2007-02-15
JP3126248U (ja) 2006-10-19
FR2889749A3 (fr) 2007-02-16
US7706067B2 (en) 2010-04-27

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