WO2008122195A1 - Rideau relevable - Google Patents

Rideau relevable Download PDF

Info

Publication number
WO2008122195A1
WO2008122195A1 PCT/CN2008/000568 CN2008000568W WO2008122195A1 WO 2008122195 A1 WO2008122195 A1 WO 2008122195A1 CN 2008000568 W CN2008000568 W CN 2008000568W WO 2008122195 A1 WO2008122195 A1 WO 2008122195A1
Authority
WO
WIPO (PCT)
Prior art keywords
reel
hole
wheel
sleeve
improved
Prior art date
Application number
PCT/CN2008/000568
Other languages
English (en)
Chinese (zh)
Inventor
Li-Ming Cheng
Original Assignee
Zheng Liming
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 Zheng Liming filed Critical Zheng Liming
Publication of WO2008122195A1 publication Critical patent/WO2008122195A1/fr

Links

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
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/32—Operating, guiding, or securing devices therefor
    • E06B9/322—Details of operating devices, e.g. pulleys, brakes, spring drums, drives

Definitions

  • the present invention relates to a curtain, and more particularly to an improved curtain that can be height-controlled for a curtain group after being stretched.
  • BACKGROUND OF THE INVENTION At present, after a curtain is completely wound up or downwardly deployed, the user can no longer individually control the vertical displacement of the panel to change its height position, so that the user cannot adjust the indoor space as desired. The bright state, so the existing curtains still have the problem of poor practicality.
  • the technical problem to be solved by the present invention is to overcome the defect that the reeling or unfolding of the panel can not be further moved up and down any position is provided, and an improved curtain can be provided, which enables the user to arbitrarily manipulate the panel by pulling the cord.
  • the height of the upper and lower sides adjusts the brightness of the room.
  • An improved curtain comprising an upper rail seat, a lower rail seat, a curtain set, a rope receiving and releasing control device, a first pulling rope and a second pulling rope; wherein the lower rail seat is spaced apart from the upper rail seat
  • the first group of the first group of the first and second One end of the rope is connected to the rope receiving and controlling device, and the other end is inserted out of the upper rail seat, and is used for controlling the lower rail seat for continuous downward deployment;
  • the second pulling rope is fixed at one end and is wound around the pulling rope.
  • the release control device the other end passes through the upper rail seat, and is used to control the lower rail seat for the phase up winding.
  • the rope receiving and releasing control device for the improved curtain comprises a locking roller set, a driving wheel, a moving block and an auxiliary gear set;
  • the locking roller set comprises a reeling wheel, a locking block and an elastic component.
  • the reel is sleeved on the shaft, and the upper end portion is provided with a gear, the middle portion is provided with a winding groove, and the lower end portion is provided with a ratchet wheel.
  • the winding groove is arranged with a drawstring group, and the locking block shaft is disposed at One end of the positioning rod is provided with a card end that is locked with the ratchet of the lower end of the reel, and the other end is provided with a convex portion, one end of the elastic element is hooked on the convex portion of the locking block, and the other end is Sleeve on the convex ⁇ ";
  • the center of the driving wheel a shaft rod is disposed, the shaft rod moves along the oblique elongated hole;
  • the movable block has a through hole at one end, a fixing rod and a groove are arranged at the bottom end, and a spring is disposed in the groove;
  • the auxiliary gear set is The upper end is provided with a gear, wherein a segment is provided with a winding groove, and a lower end thereof is provided with a concave groove, and one end of the elastic piece is positioned in the concave groove.
  • the drawstring retracting control device of the present invention may have another structural realization form, including an auxiliary wheel set and a locking wheel set;
  • the auxiliary wheel set includes a reel and an elastic component sleeved outside the reel , the sleeve and the roller, the reel is provided with a wheel body, the wheel body is extended with a convex portion, the convex portion is provided with a groove, and the center thereof is provided with a through hole penetrating the wheel body, and the periphery thereof
  • the sleeve has a shaft hole, and the shaft sleeve is inserted into the through hole of the wheel base body and the center hole of the roller having the wheel groove;
  • the locking wheel set includes a reel, an upper sleeve, a lower sleeve, a reel, an upper sleeve, a lower sleeve and a locking block, the reel is provided with a wheel body, and the wheel body is provided with a winding groove for winding the
  • the pin hole is fixed, and the lower sleeve is fixed in the reel by the fixing pin.
  • the reel is disposed at the bottom of the reel, and the center is provided with a sleeve hole for the lower sleeve to be nested, and the outer circumference is provided for
  • the winding groove of the drawstring group is provided with a ratchet wheel at the bottom thereof, and the ratchet end face is provided with a concave surface provided by a spring.
  • the upper sleeve body is sleeved in the sleeve hole, and the top part is a block body, and the lower part thereof is extended
  • the embedded bump has a receiving groove inside, and the lower sleeve is a block body against the spring, the locking block shaft is disposed on the second through hole, and one end thereof is formed with a ratchet at the bottom of the reel
  • the card end of the card is disposed at a position close to the card end, and is provided with a threading hole for fastening the first cable, and the other end is provided with a hole for hooking one end of the elastic member.
  • the improved curtain Compared with the structure of the existing curtain, the improved curtain according to the present invention comprises a first pull cord, a second pull cord and a drawstring/text control device, and when the blind set is completed to be wound up or downwardly The user can then operate the drawstring retracting control device through the first or second drawstring to control the rise or fall of the panel set by a certain distance, and after the panel group reaches the predetermined height, the pull cord control device is used. The positioning further changes the height position of the panel group, so that the practical effect of adjusting the brightness of the indoor space can be achieved.
  • FIG. 1 is a front view of the present invention.
  • 2 is an exploded perspective view (1) of the drawstring retracting control device of the present invention.
  • FIG. 3 is an exploded perspective view (2) of the drawstring retracting control device of the present invention.
  • 4 is a schematic view of the second drawstring pulling reeling curtain set of the present invention.
  • Fig. 5 is a top plan view (I) of the drawstring control device of the present invention when the curtain set is wound up.
  • Fig. 6 is a top plan view (2) of the drawstring retracting control device of the present invention when the curtain set is taken up.
  • Figure 7 is a schematic view of the first pull cord pulling chip J of the present invention.
  • Fig. 8 is a top plan view (1) of the drawstring retracting control device of the present invention in the case of a set of curtains.
  • Figure 9 is a top plan view (2) of the drawstring control device of the present invention when the curtain set is deployed.
  • Figure 10 is an exploded perspective view of another embodiment of the drawstring retracting control device of the present invention.
  • Figure 11 is a perspective assembled view of another embodiment of the drawstring retracting control device of the present invention.
  • Figure 12 is a schematic view showing the assembly of the reel and the upper bushing of the locking wheel set of the present invention.
  • Figure 13 is a schematic view of the upper sleeve of the card set wheel set of the present invention.
  • Figure 14 is a schematic view showing the assembly of the upper and lower bushings of the locking wheel set of the present invention.
  • FIG. 15 is a top plan view (1) of the drawstring control device according to another embodiment of the present invention when the curtain set is taken up.
  • FIG. 16 is a top plan view (2) of the drawstring control device in the case of the cord set being taken up according to another embodiment of the present invention.
  • FIG. 17 is a schematic top plan view of a first pull cord pulling sheet panel according to another embodiment of the present invention.
  • Figure 18 is an exploded perspective view showing still another embodiment of the drawstring retracting control device of the present invention.
  • Figure 19 is a schematic diagram of the assembly of Figure 18. DETAILED DESCRIPTION OF THE INVENTION The present invention will now be described in detail in conjunction with the specific embodiments and drawings. Please refer to the schematic diagram of the present invention shown in FIG.
  • the illustrated improved window covering 10 includes an upper rail seat 20, The lower rail seat 30, a panel set 40, a first pull cord 50, a second pull cord 60, and a pull cord control device 70.
  • the rope receiving and retracting control device 70 is disposed in the channel of the upper rail seat 20, and can retract and lay the first and second pulling ropes 50 and 60.
  • the upper rail seat 20 has a plurality of through-bottom portions.
  • the holes as shown in the illustrated embodiment, are the first through holes 21 and the second through holes 22, respectively.
  • the lower rail seat 30 is spaced apart from the upper rail seat 20; the curtain set 40 has a curtain and a cord set 80 (see FIG.
  • the first pull cord 50 is used to control the lower rail seat 30 for continuous downward deployment, one end of which is connected to the rope receiving and retracting control device 70, and the other end of which passes through the first railing of the upper rail seat 20 Outside the hole 21;
  • the second drawstring 60 is used to control the lower rail seat 30 for the staged upward winding, one end of which is fixed and wound around the drawstring retracting control device 70, and the other end is wound around and passes through the upper rail.
  • the second through hole 22 of the seat 20 is outside.
  • the user can utilize the functions of the first and second pull cords 50, 60 and the rope retracting control device 70 to stably control the curtain set 40 to be wound up or down to a certain height.
  • the upper rail seat 20 is provided with a first through hole 21 and a second through hole 22 on the other side of the rope receiving and retracting control device 70.
  • the release control device 70 is disposed in the upper rail seat 20 for latching the first pull cord 50 and the second pull cord 60.
  • the drawstring retracting control device 70 includes a body 71, a moving block 715, and a " ⁇ A fixed roller set 72, a driven wheel 73, an auxiliary gear set 74, a positioning body 75 and an upper cover 76.
  • the seat body 71 is open at the upper portion and has a recessed hole 710 for penetrating the drawstring group 80 on one side.
  • the upper end of the base 71 is provided with a recessed surface 711, and the inner portion is defined as a first chamber 712 and a second chamber 713, and an accommodation space 714 is formed between the two chambers 712 and 713;
  • a housing shaft 712 is provided with a roller shaft 7121 and a shaft 7122 which are sleeved by the roller 7120.
  • the upper space is further provided with a top block 7123, and a positioning rod 7124 and a protruding rod 7125 are arranged below (see FIG. 3).
  • the bottom of the second chamber 713 is provided with a flat passage 71, and a corner of the second chamber 713 is provided with a pair of guiding grooves 7132, and the guiding groove 7132 is provided with a pulley 713.
  • the bottom of the accommodating space 714 between the first and second chambers 712 and 713 is provided with a through hole 7141, and the other side is provided with a positioning protrusion 7142, and a bottom portion is provided with a space.
  • the slanting elongated hole 7143 (see FIG. 6) is inserted into the accommodating wheel 73.
  • the accommodating space 714 is provided with a moving block 715, and one end of the moving block 715 is provided to pass through the first pulling rope 50.
  • the hole 7151 has a fixing rod 7152 and a groove 7153 (see FIG. 6) at the bottom end thereof.
  • the groove 7153 is provided with a spring 716.
  • One end 7161 of the spring 716 is hooked on the fixing rod 7152, and the other end 7162 is fixed on the hole 7151.
  • the locking roller set 72 is disposed inside the first chamber 712, and includes a reel 721, a And a winding member 721; the reel 721 is sleeved on the shaft 7122 in the first chamber 712, and the upper end portion is provided with a gear 7211, the middle portion is provided with a winding groove 7212, and the lower end portion is provided.
  • Spines The wheel 7213 (see FIG.
  • the ratchet 7213 of the lower end of the wheel 721 forms a locking card end 7221, and the other end is provided with a convex portion 7222; one end 7231 of the elastic member 723 is hooked on the convex portion 7222 of the locking block 722, and the other end is 7232
  • the fixing block 7122 is fixed on the protruding rod 7125 (see FIG. 3). Therefore, the locking block 722 is rotated about the positioning rod 7124.
  • the center of the driving wheel 73 is provided with a shaft 731 which is inserted into and moved along the oblique elongated hole 7143 of the seat body 71 (see Fig. 6).
  • the auxiliary gear set 74 is disposed inside the second chamber 713 of the base 71, and a gear 741 is disposed at an upper end thereof.
  • the shaft 7411 having a flat surface and having a channel 7412 at one end is sleeved in the wheel center of the gear 741.
  • the shaft 7411 is fixed in the through hole 7131 of the second chamber 713; the middle portion of the auxiliary gear set 74 is provided with a winding groove 742 for winding the second rope 60, and the lower end is provided with a recessed groove 743 ( As shown in FIG. 5), one end 7441 of an elastic piece 744 is positioned in the recessed groove 743, and the other end 7442 of the elastic piece 744 is locked in the groove 7412 of the shaft 7411, so that the elastic piece 744 is accommodated in the recess 4 Inside.
  • the positioning body 75 is sleeved on the concave surface 711 of the seat body 71, and is provided with a first set of holes 751, an elongated hole 752 for inserting the locking roller set 72, the driving wheel 73 and the auxiliary gear set 74, respectively.
  • the second set of holes 753 is further provided with a sleeve hole 754 for the roller 7120 to penetrate on one side thereof, and the positioning body 75 disposed above the seat body 71 enables the locking roller set 72 and the auxiliary gear set 74 to be better.
  • the upper cover 76 is a cover body that is disposed above the base 71, and is provided with a plurality of through holes. In the embodiment shown in FIG.
  • the plurality of through holes are the roller shaft 7121 of the base 71.
  • the shafts 7122, 7411 and the shaft 731 of the driving wheel 73 are sheathed by the first, second, third ports L 761, 762, 763 and the elongated overnight L 764.
  • the upper rail seat 20 of the improved curtain 10 of the present invention is provided with a drawstring that can cooperate with the first and second drawstrings 50 and 60 to control the movement of the panel set 40.
  • the control unit 70 has a first and second through holes 21 and 22 on one side of the bottom of the upper rail base 20. One end of the first pull cord 50 is fixed to the pull cord control device 70, and the other end is wound around and passed out.
  • one end of the second pull cord 60 is fixed and wound around the drawstring retracting control device 70 and passes through the second through hole 22.
  • the second cable 60 is directly pulled downward by the hand to pull the auxiliary gear set 74 to make the auxiliary gear set.
  • 74 rotates in a clockwise direction, and causes the bottom elastic piece 744 to form a take-up shape, while the driving wheel 73 also rotates and meshes with the locking roller set 72, so that the locking roller set 72 is the same as the auxiliary gear set 74.
  • the direction of rotation referring to FIG.
  • the locking roller set 72 of the original meshing state is separated from the driving wheel 73.
  • the convex portion 7222 of the locking block 722 is pulled by the first pulling cord 50, and the ratchet of the lower end portion of the locking roller set 72 7213, the card end 7221 of the locking block 722 forming the locking moves in the opposite direction to disengage the ratchet 7213 from the card end 7221, so that the cord set 80 retracted in the winding groove 7212 on the middle of the locking roller set 72 is disengaged.
  • the lock is formed to form a downward movement, so that the curtain set 40 is deployed downward to a predetermined height, so that the user can adjust the brightness of the indoor space as desired.
  • the improved cord retracting control device 70a includes a frame body 71a, an auxiliary wheel set 72a and a "fixing wheel set”. 73a.
  • the inside of the body 71a is provided with a permeable chamber 710a, and the upper and lower end faces are respectively provided with a shaft hole 711a, a sleeve hole 712a and a plurality of through holes, and the plurality of through holes are implemented as shown in FIG.
  • the first through hole 713a and the second through hole 714a are provided, and one side of the frame 71a is provided with a through hole 715a through which the string 100 is inserted.
  • the auxiliary wheel set 72a is axially coupled to the axis of the chamber 710a.
  • the hole 711a includes a reel 721a, an elastic member 722a, a sleeve 723a and a roller 724a.
  • the wheel 721a is provided with a wheel base body 7211a.
  • the wheel base body 7211a is extended with a convex portion 7212a.
  • the portion 7212a is internally provided with a recess 7213a, a through hole 72L 7214a extending through the wheel base body 7211a, and a card slot 7215a at the periphery thereof; the elastic member 722a is sleeved on the convex portion of the reel 721a of the wheel base body 7211a At the outer periphery of the 7212a, the inner end portion and the outer end portion are respectively formed with hook portions 7221a and 7222a, which are respectively hooked to the card slot 7215a.
  • the sleeve 723a is provided with a shaft hole 7231a, which simultaneously passes through the through hole 7214a of the wheel base body 7211a and a center hole 7241a of the roller 724a having the wheel groove for the movement of the string group 80.
  • the shaft hole 723a is inserted into the shaft hole 7231a of the boss 723a and the shaft hole 711a of the upper end surface and the lower end surface of the frame body 725a, so that the auxiliary wheel set 72a is axially disposed on one side of the frame body 71a.
  • the locking wheel set 73a is axially connected to the sleeve hole 712a of the chamber 710a, and includes a reel 731a, an upper and lower sleeves 732a and 733a, a reel 734a, An upper and lower sleeves 735a and 736a and a fixed block 737a.
  • the reel 731a is provided with a wheel base body 7311a, and the wheel base body 7311a is provided with a winding groove for the second pull cord 60.
  • the sleeves 732a and 733a are disposed in the through-hole 7315a of the reel 731a and the axial center of the reel 734a, and are respectively provided with engaging portions 7321a and 7331a at their mutually engaged ends, and shaft holes 7322a are provided at the center thereof.
  • a rod portion 7323a having a card end 7324a is provided at the other end of the upper sleeve 732a.
  • the outer edge of the rod portion 7323a is sleeved with an arc-shaped stopper 7325a, and the lower portion of the rod portion 7323a is provided with a bolt.
  • the reel 734a is disposed at the bottom of the wheel base body 7311a of the reel 731a, and has a sleeve hole 7341a for the lower sleeve 733a to be inserted in the center thereof, and a winding wire for winding the rope set 80 is provided on the outer circumference thereof.
  • the groove 7342a is provided with a ratchet 7343a at the bottom thereof, and an end surface of the ratchet 7343a is provided with a concave surface 7344a, and the concave surface 73 44a is sleeved with a spring 7345a; the upper sleeve 735a is sleeved in the sleeve hole 712 of the frame 71a, and a shaft 7354a is inserted into the upper sleeve 735a and the locking wheel set 73a is fixed to the frame 71a.
  • the other side of the chamber 710a, on the top of the sleeve 735 is a body member 7351A, which is provided with a lower extension insert bumps 7352a, 7352a of the insert having an internal projection accommodating grooves 7353a (see FIG. 13) of the receiving groove 7353a 5
  • the upper sleeve 732a is provided with an arc-shaped stopper 7325a, and the upper sleeve 736a is a block of the spring 7345a; the locking block 737a is axially disposed at the second of the chamber 710a.
  • the through hole 714a is provided with a card end 7371a formed with a ratchet 7343 at the bottom of the reel 734a, and a threading hole 7372a is disposed at a position close to the card end 7371a to fix the first pull cord 50.
  • the other end is provided with a through hole 7373a
  • the perforations 737 for the end of the elastic member 738a of the hook for fixing 7381a, 7382a and the other end of the elastic member 738a is fixed to the lock of the second through hole 71a of the frame body 713a
  • the elastic member 738a can be
  • the locking block 737a is rotated about the hole center of the second through hole 714a, and when the first pulling rope 50 is pulled, the locking block 737a is another The card end 7371a is moved in the opposite direction.
  • the improved curtain 10 of the present invention only needs to pull the second pull cord 60 directly by hand when the curtain set 40 is rolled up.
  • the reel wheel 721a of the auxiliary wheel set 72a is in a rolled shape and forms a hooking elastic member 722a with the locking wheel set 73a reel 731a.
  • the winding card is also provided.
  • the upper sleeve 732a sleeved on the reel 731a is slid downward by the oblique slot 7326a, and the lower sleeve 733a engaged with the upper sleeve 732a drives the roll.
  • the cord set 80 wound around the reel 734a is in a rolled shape.
  • the improved cord retracting control device 70b is provided with a chamber 7214b on the reel 721b of the locking roller set 72b.
  • the chamber 7214b is nested and combined with the correspondingly disposed tenon 765b of the upper cover 76b, and a lubricant is disposed between the tenon 765b and the interior of the chamber 7214b thereof, so that when the cord set 80 is rotated, the retractable and stable position can be achieved. effect.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)

Abstract

La présente invention concerne un rideau. Ce rideau est constitué d'un rail support supérieur (20), d'un rail support inférieur (30), d'un ensemble d'éléments de rideau (40), d'un dispositif de commande de montée et descente des cordons de guidage (70), un premier cordon de guidage (50) et un deuxième cordon de guidage (60). L'extrémité supérieure de l'ensemble d'éléments de rideau (40) est reliée au rail support supérieur (20), l'extrémité inférieure étant reliée au rail support inférieur (30). Le dispositif de commande de montée et descente des cordons de guidage (70) est disposé dans le rail support supérieur (20). Le premier cordon de guidage (50) est relié au dispositif de commande de montée et descente des cordons de guidage (70) de façon à commander au rail support inférieur (30) un déploiement vers le bas. Le deuxième cordon de guidage (60) est relié au dispositif de commande de montée et descente des cordons de guidage (70) de façon à commander au rail support inférieur (30) un repli par remontée.
PCT/CN2008/000568 2007-04-06 2008-03-24 Rideau relevable WO2008122195A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200710039215.4 2007-04-06
CN2007100392154A CN101278797B (zh) 2007-04-06 2007-04-06 改良窗帘

Publications (1)

Publication Number Publication Date
WO2008122195A1 true WO2008122195A1 (fr) 2008-10-16

Family

ID=39830469

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/000568 WO2008122195A1 (fr) 2007-04-06 2008-03-24 Rideau relevable

Country Status (2)

Country Link
CN (1) CN101278797B (fr)
WO (1) WO2008122195A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109469438A (zh) * 2017-09-07 2019-03-15 敬祐科技股份有限公司 用于窗帘卷绳器的分绳片
CN110469258B (zh) * 2018-05-10 2020-12-04 陈柏宇 用于无外露拉绳式窗帘的侧入式卷绳器

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85201163U (zh) * 1985-04-01 1986-11-19 中国科学技术大学 一种多用百叶窗帘
CN2351051Y (zh) * 1998-08-14 1999-12-01 王文仁 窗帘装置(二)
US5996670A (en) * 1996-10-23 1999-12-07 Yamato Tape Co., Ltd. Balanced shutter and balancing device thereof
CN2500219Y (zh) * 2001-08-28 2002-07-17 王文仁 窗帘上下拉动装置
US20040149398A1 (en) * 2003-01-23 2004-08-05 Shih-Ming Lin Window blind having a restrainable bottom rail
DE202006003006U1 (de) * 2006-02-24 2006-06-08 Yang, Nelson T.G. Zweiwege-Aufbau für eine Vorhangsanordnung
CN2881049Y (zh) * 2005-07-04 2007-03-21 丽方企业股份有限公司 具有刹车单元的百叶窗卷绳装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85201163U (zh) * 1985-04-01 1986-11-19 中国科学技术大学 一种多用百叶窗帘
US5996670A (en) * 1996-10-23 1999-12-07 Yamato Tape Co., Ltd. Balanced shutter and balancing device thereof
CN2351051Y (zh) * 1998-08-14 1999-12-01 王文仁 窗帘装置(二)
CN2500219Y (zh) * 2001-08-28 2002-07-17 王文仁 窗帘上下拉动装置
US20040149398A1 (en) * 2003-01-23 2004-08-05 Shih-Ming Lin Window blind having a restrainable bottom rail
CN2881049Y (zh) * 2005-07-04 2007-03-21 丽方企业股份有限公司 具有刹车单元的百叶窗卷绳装置
DE202006003006U1 (de) * 2006-02-24 2006-06-08 Yang, Nelson T.G. Zweiwege-Aufbau für eine Vorhangsanordnung

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CN101278797B (zh) 2012-03-28
CN101278797A (zh) 2008-10-08

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