EP2765270A1 - Fensterjalousie - Google Patents

Fensterjalousie Download PDF

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Publication number
EP2765270A1
EP2765270A1 EP13154416.5A EP13154416A EP2765270A1 EP 2765270 A1 EP2765270 A1 EP 2765270A1 EP 13154416 A EP13154416 A EP 13154416A EP 2765270 A1 EP2765270 A1 EP 2765270A1
Authority
EP
European Patent Office
Prior art keywords
gear
blind
transmission unit
linking rod
operable state
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.)
Withdrawn
Application number
EP13154416.5A
Other languages
English (en)
French (fr)
Inventor
Shih-Ming Lin
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP13154416.5A priority Critical patent/EP2765270A1/de
Publication of EP2765270A1 publication Critical patent/EP2765270A1/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive
    • E06B9/76—Operating devices or mechanisms, e.g. with electric drive using crank handles

Definitions

  • the invention relates to a window blind, more particularly to a cordless window blind.
  • a conventional cordless window blind 1 is disclosed to include a stationary seat 11 fixedly mounted over a top of a window, a blind mechanism 12 connected releasably to the stationary seat 11, a control pole 10, a coupling mechanism 13 connected to the control pole 10 and the blind mechanism 12, and an anti-rotation seat 14 fixedly mounted on a wall surface below the window and formed with an engaging groove 141.
  • the blind mechanism 12 includes a blind member 121 having one end that is connected to the stationary seat 11, a linking rod 122 mounted rotatably to the stationary seat 11, a sheet member 123 having one end that is connected to the linking rod 122 and wound releasably thereon, and a plurality of spaced-apart connecting members 124 interconnecting the blind member 121 and the sheet member 123.
  • the coupling mechanism 13 includes a first gear 131 connected co-rotatably to the control pole 10, and a second gear 132 connected co-rotatably to the linking rod 122 and meshing with the first gear 131.
  • the control pole 10 has an anti-rotation segment 101 that is engageable with the anti-rotation seat 14 for preventing the control pole 10 from rotating.
  • the linking rod 122 rotates via transmission between the first gear 131 and the second gear 132 of the coupling mechanism 13 and can retract the sheet member 123 and the blind member 121.
  • the anti-rotation segment 101 of the control pole 10 is engaged to the engaging groove 141 of the anti-rotation seat 14 for stopping the rotation of the control pole 10 and retaining the desired position of the blind member 121. If the blind member 121 needs to be released afterward, the anti-rotation segment 101 of the control pole 10 is disengaged from the engaging groove 141 of the anti-rotation seat 14 so as to permit the rotation of the control pole 10, and the blind member 121 would be automatically released due to the weight thereof.
  • the engagement and disengagement between the control pole 10 and the anti-rotation seat 14 have to be performed by a user close to the wall surface, thereby causing inconvenience to the user.
  • the sheet member 123 and the blind member 121 may suddenly be released, thereby causing difficulty for positioning the blind member 121 of the blind mechanism 12 before the release or retraction of the blind member 121.
  • the object of the present invention is to provide a window blind that is convenient to operate.
  • a window blind of the present invention includes:
  • a first preferred embodiment of a window blind includes a stationary seat 2 adapted to be mounted on a wall surface over a top of a window (not shown), a blind mechanism 3, a coupling mechanism 4, and a control pole 5.
  • the stationary seat 2 includes a roof 20 extending in a longitudinal direction and having opposite ends in the longitudinal direction, a first edge that is coupled to the wall surface and a second edge that is opposite to the first edge in a transverse direction that is transverse to the longitudinal direction, first and second end walls 21, 22 connected respectively to the opposite ends of the roof 20, and a housing 23 disposed between the first and second end walls 21, 22 and connected to the first end wall 21.
  • the first end wall 21 has a securing portion 211 secured to the roof 20, a suspending portion 212 extended downwardly from the securing portion 211, and an inserting portion 213 disposed under the securing portion 211 and extending in the longitudinal direction from the suspending portion 212.
  • the housing 23 includes two housing pieces coupled together, and has an outer wall 233, a U-shaped base wall 232 extending in the longitudinal direction from a bottom of the outer wall 233 and cooperating with the outer wall 233 to define one of the housing pieces, an inner wall 234 connected to a distal edge of the base wall 232, and an inverted U-shaped upper wall 235 cooperating with the inner wall 234 to define the other one of the housing pieces and connected to the outer wall 233, the inner wall 234, and the base wall 232.
  • the housing 23 defines a gear-receiving space 231 therein for receiving the coupling mechanism 4.
  • the outer wall 233 is formed with a first slot 2331 (see Figure 5 ), and the outer wall 233 is coupled to the first end wall 21 with the inserting portion 213 of the first end wall 21 extending through the first slot 2331.
  • the base wall 232 of the housing 23 is formed with a first hole 236, and the inner wall 234 is formed with a second hole 238.
  • the blind mechanism 3 includes a hollow linking rod 31 that has opposite ends mounted rotatably and respectively to the housing 23 and the second end wall 22 of the stationary seat 2, and a blind unit 32 wound releasably on the linking rod 31.
  • the blind unit 32 includes a blind member 321 having one end connected to the first edge of the roof 20 of the stationary seat 2, a sheet member 322 wound releasably on the linking rod 31, and a plurality of spaced-apart connecting members 323 interconnecting the blind member 321 and the sheet member 322.
  • each of the connecting members 323 is configured as a rod. Accordingly, rotation of the linking rod 31 drives the sheet member 322 to be released or retracted, thereby also releasing or retracting the blind member 321 via the connecting members 323.
  • the blind member 321 may be wound releasably on the linking rod 31 together with the sheet member 322 instead of being connected directly to the roof 20.
  • the coupling mechanism 4 includes a transmission unit 42, a resilient member 43, and a stop unit 44.
  • the transmission unit 42 is received in the gear-receiving space 231, is connected to the linking rod 31, and is movable between an operable state (see Figure 7 ), where the linking rod 31 is permitted to rotate for releasing or retracting the sheet member 322, and a non-operable state (see Figures 5 and 6 ), where rotation of the linking rod 31 is not permitted.
  • the transmission unit 42 includes a first gear 421 and a second gear 422.
  • the first gear 421 has a plurality of angularly spaced-apart first gear teeth 423 disposed in the gear-receiving space 231, and a connecting portion 424 extending downwardly through the first hole 236 and connected co-rotatably to the control pole 5.
  • the second gear 422 has a plurality of angularly spaced-apart second gear teeth 425 meshing with the first teeth 423 of the first gear 421, and a coupling portion 426 that extends in the longitudinal direction through the second hole 238 and that is inserted fittingly into the linking rod 31 so as to be co-rotatable with the linking rod 31.
  • the base wall 232 of the housing 3 has an annular shoulder portion 237 formed in the first hole 236.
  • the resilient member 43 is a compression spring having opposite ends that abut respectively against the first gear teeth 423 of the first gear 421 and the shoulder portion 237 for biasing the first gear 421 upwardly.
  • the stop unit 44 is formed with a second slot 441 registered with the first slot 2331 of the outer wall 233 of the housing 23, and at least one engaging groove 442 opening downwardly and engageable with at least one of the first teeth 423 of the first gear 421. In this preferred embodiment, two engaging grooves 442 are formed.
  • the inserting portion 213 of the first end wall 21 extends through the first slot 2331 and the second slot 441 for strengthening the coupling between the housing 3 and the first end wall 21.
  • the transmission unit 42 of the first embodiment when the transmission unit 42 of the first embodiment is at the non-operable state, the first gear 421 is biased upwardly by the resilient member 43 such that two of the first teeth 423 are engaged with the engaging grooves 442 respectively, while the first teeth 423 still mesh with the second teeth 425.
  • Such engagement between the first teeth 423 and the engaging grooves 442 restrains rotations of the first gear 421, the second gear 422 and the linking rod 31. Therefore, the blind unit 32 can be positioned at a desired state.
  • the window blind of the present invention is easy to operate. Moreover, since the user must hold the control pole 5 tightly for exerting a force against the resilient force of the resilient member 43 when disengaging the two of the first teeth 423 from the engaging grooves 442, sudden fall of the blind member 321 can be effectively alleviated.
  • the second preferred embodiment of the window blind according to the present invention has a structure similar to that of the first embodiment.
  • the main difference between this embodiment and the previous embodiment resides in the configuration of the stop unit 44 of the coupling mechanism 4.
  • the stop unit 44 in this second preferred embodiment has an engaging protrusion 443 formed on the first gear 421 of the transmission unit 42, and an engaging rod 444 extending from the second gear 422 in the longitudinal direction and formed with a plurality of angularly spaced-apart engaging grooves 442.
  • the first gear 421 is biased upwardly by the resilient member 43 and the engaging protrusion 443 engages one of the engaging grooves 442 when the transmission unit 42 is at the non-operable state.
  • the second preferred embodiment has the same advantages as those of the first preferred embodiment.
  • the third preferred embodiment of the window blind according to the present invention has a structure similar to that of the first preferred embodiment.
  • the main difference between this embodiment and the first preferred embodiment resides in the following.
  • the stop unit 44 of the coupling mechanism 4 is formed on the second gear 422 of the transmission unit 42.
  • the second gear 422 has a plurality of first bottom lands 427 and a plurality of second bottom lands 428.
  • Each of the first and second bottom lands 427, 428 is formed between an adjacent pair of the second gear teeth 425.
  • the second gear 422 further has a plurality of engaging grooves 442 formed respectively in the first bottom lands 427.
  • the third preferred embodiment has the same advantages as those of the first preferred embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
EP13154416.5A 2013-02-07 2013-02-07 Fensterjalousie Withdrawn EP2765270A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13154416.5A EP2765270A1 (de) 2013-02-07 2013-02-07 Fensterjalousie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13154416.5A EP2765270A1 (de) 2013-02-07 2013-02-07 Fensterjalousie

Publications (1)

Publication Number Publication Date
EP2765270A1 true EP2765270A1 (de) 2014-08-13

Family

ID=47713919

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13154416.5A Withdrawn EP2765270A1 (de) 2013-02-07 2013-02-07 Fensterjalousie

Country Status (1)

Country Link
EP (1) EP2765270A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016029249A1 (en) * 2014-08-29 2016-03-03 Acmeda Pty Ltd Improved winder
GB2541512A (en) * 2015-06-25 2017-02-22 Day Perry Cordless roman blind
CN107939265A (zh) * 2016-10-12 2018-04-20 陈金福 用于无拉绳窗帘的两用杆及使用其的帘片升降装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3194366A (en) * 1961-06-09 1965-07-13 Hunter Douglas Int Quebec Ltd Self-braking driving device for an operating shaft
US4503899A (en) * 1981-12-16 1985-03-12 Security Shutter Corp. Locking means for gear drive
DE202008007123U1 (de) * 2007-06-15 2008-09-04 Gerhard Geiger Gmbh & Co. Bremse für Untersetzungsgetriebe
US20110203742A1 (en) * 2009-12-03 2011-08-25 Shih-Ming Lin Window blind assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3194366A (en) * 1961-06-09 1965-07-13 Hunter Douglas Int Quebec Ltd Self-braking driving device for an operating shaft
US4503899A (en) * 1981-12-16 1985-03-12 Security Shutter Corp. Locking means for gear drive
DE202008007123U1 (de) * 2007-06-15 2008-09-04 Gerhard Geiger Gmbh & Co. Bremse für Untersetzungsgetriebe
US20110203742A1 (en) * 2009-12-03 2011-08-25 Shih-Ming Lin Window blind assembly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016029249A1 (en) * 2014-08-29 2016-03-03 Acmeda Pty Ltd Improved winder
GB2541512A (en) * 2015-06-25 2017-02-22 Day Perry Cordless roman blind
CN107939265A (zh) * 2016-10-12 2018-04-20 陈金福 用于无拉绳窗帘的两用杆及使用其的帘片升降装置

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