CN101278797B

CN101278797B - Improved window curtain

Info

Publication number: CN101278797B
Application number: CN2007100392154A
Authority: CN
Inventors: 郑立铭
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-04-06
Filing date: 2007-04-06
Publication date: 2012-03-28
Anticipated expiration: 2027-04-06
Also published as: CN101278797A; WO2008122195A1

Abstract

The invention discloses an improved curtain which can conduct height control of a folded curtain sheet group, including an upper rail base, a lower rail base, a curtain sheet group, a pull-rope retracting control device, a first pull rope and a second pull rope. The pull-rope retracting control device is arranged in the upper rail base; one end of the first pull rope is connected with the pull-rope retracting control device and the other end goes out of the upper rail base so as to control the continuous downward unfolding of the lower rail base; one end of the second pull rope is fixed and wound on the pull-rope retracting control device and the other end goes out of the upper rail base so as to control the gradual upward furling of the lower rail base. Users can arbitrarily control the height of the folded curtain sheet group by the two pull ropes and the pull-rope retracting control device, thus adjusting the degree of the indoor brightness.

Description

The improvement curtain

Technical field:

The present invention relates to a kind of curtain, relate in particular to a kind of improvement curtain that can carry out highly control the groups of shades after taking down the exhibits.

Background technology:

At present general curtain is after its curtain sheet group completion upwards furls or launches downwards; User's further vertical upper and lower displacement of this curtain sheet group of control separately again; To change its height and position; Therefore the user can not indiscriminately ad. as one wishes adjust the bright state of the interior space, so existing curtain still has the not good problem of practicality.

Summary of the invention:

Technical problem to be solved by this invention be overcome the curtain sheet group accomplished after furling or launching can't be further the defective of any shift position up and down separately; A kind of improvement curtain is provided; It can make the user control the height up and down of curtain sheet group arbitrarily through stay cord, thereby adjusts indoor bright degree.

It is following that the present invention solves the technical scheme that its technical problem takes:

A kind of improvement curtain, it includes rail chair on, once rail chair, a curtain sheet group, a stay cord folding and unfolding control device, one first stay cord and one second stay cord; Said rail chair compartment of terrain down is arranged at the below of rail chair; Said curtain sheet group has a curtain sheet and a stay cord group, and its upper end connects goes up rail chair, and the lower end connects rail chair down; Said stay cord folding and unfolding control device is arranged on this in rail chair; Said first stay cord, one end connects stay cord folding and unfolding control device, and the other end passes outside the rail chair, and it is made continous way and launch downwards in order to control down rail chair; Said second stay cord, one end is fixed and is set around on this stay cord folding and unfolding control device, and the other end passes outside the rail chair, and it does stagely upwards to furl in order to control down rail chair.

The improvement of the present invention, the rope retractable curtain control means comprises a locking roller groups, one drive wheel, a moving block, and an auxiliary gear set; the locking roller has a roll of wire wheel set includes a locking block and an elastic member, the reel on a shaft rod to pass through it, its upper portion provided with a gear, the middle of a roll groove, the lower end of a ratchet wheel, which has a rope winding roll trunking group, the locking block located in a positioning rod axis, one end of which is provided with a winding ratchet wheel to form a lower end portion for locking the terminal, the other end has a projecting portion, one end of the elastic member provided on the locking hook block the convex portion, and the other end fixed to a projection rod set; said drive wheel is provided with a central shaft, the shaft rod along a diagonal movement of the elongated hole shape; movement block provided at one end of the through hole, the bottom a fixed rod and the recess, the recess is provided with a spring; the upper end of the auxiliary gear has a gear, which has a volume trunking section, a concave groove at its lower end, a resilient recess positioned at the ends of the slot.

Retractable rope of the present invention may have other control devices to achieve the form of a structure, which includes a set of auxiliary wheels, and a locking wheel; said auxiliary wheel comprises a reel, a wheel arranged on the outside of the roll the elastic element, a sleeve and a roller, which is provided with a reel seat body, the wheel extends above the seat body is provided with a convex portion, the convex portion equipped with a recess, the center has a through-hole through the wheel seat body , and its periphery provided with a slot, the sleeve has a shaft hole, which at the same time wear on the wheel seat body having a through-hole and the cam groove of the rollers within the central bore; the locking wheel comprises a roll of wire wheel, one on the sleeve, what bushings, a reel, a body on the sets, it sets the body and a locking block, the reel is provided with a seat body, the body has a seat for the second round the rope is wound around the roll groove, which is provided with a projection extending upper portion, the projection portion equipped with a recess, the center wheel has a through hole through the seat body, and its periphery is provided with a slot for fixing hook , the upper and lower bushings provided in the spinning reel and the reel in each of its end portions engage the engaging portion a and the central bore of a shaft, the other end of the sleeve with a rod having a card end portion, the outer edge of the lever to set up a curved stopper cap, which has a lower ramp shape for moving pin slot, and the near vicinity of the lower sleeve portion engaging a pin hole, fixing pin is inserted through the lower sleeve fixed on the solid reel, the reel is provided at the bottom of the spinning reel, the center for the sleeve has a set of holes set into the peripheral group rope is wound around a supply volume trunking, the bottom has a ratchet, the ratchet spring is disposed in the end face has a concave surface for the cap is placed on the set of a hole in the body, the top of a piece of body which is provided with an insert lower extension bump embedded within a block having a projection receiving slot, the lower cover member is a spring against the valve block, the axis of the locking block is provided in a second through hole, and its bottom end is provided with a winding ratchet wheel to form a lock end of a given card, near the end position of the card includes a first rope for tying solid threading hole, the other end of the elastic member at one end has a hook for fixing the perforation.

Compare with the structure of existing curtain; Improvement curtain of the present invention includes first stay cord, second stay cord and stay cord folding and unfolding control device; After the action that the completion of curtain sheet group upwards furls or launches downwards, the user can handle stay cord folding and unfolding control device through first or second stay cord again, with the group rising of control curtain sheet or the specific range that descends; And after curtain sheet group arrives predetermined altitude; Utilize stay cord folding and unfolding control device to position again, further change the height and position of curtain sheet group, thereby can reach the practicality effect of adjustment interior space bright state.

Description of drawings:

Fig. 1 is a front view of the present invention.

Fig. 2 is the three-dimensional exploded view () of stay cord folding and unfolding control device of the present invention.

Fig. 3 is the three-dimensional exploded view (two) of stay cord folding and unfolding control device of the present invention.

Fig. 4 furls the sketch map of curtain sheet group for the pulling of the present invention's second stay cord.

Fig. 5 is the schematic top plan view () of stay cord folding and unfolding control device of the present invention when curtain sheet group furls.

Fig. 6 is the schematic top plan view (two) of stay cord folding and unfolding control device of the present invention when curtain sheet group furls.

Fig. 7 is put the sketch map of curtain sheet group for the present invention's first stay cord pulling exhibition.

Fig. 8 is the schematic top plan view () of stay cord folding and unfolding control device of the present invention when the exhibition of curtain sheet group is put.

Fig. 9 is the schematic top plan view (two) of stay cord folding and unfolding control device of the present invention when the exhibition of curtain sheet group is put.

Figure 10 is the three-dimensional exploded view of another embodiment of stay cord folding and unfolding control device of the present invention.

Figure 11 is the three-dimensional combination figure of another embodiment of stay cord folding and unfolding control device of the present invention.

Figure 12 is the reel of fastening wheels of the present invention and the assembly sketch map of Upper shaft sleeve.

The descending sketch map of Upper shaft sleeve of Figure 13 fastening wheels of the present invention.

Figure 14 is the assembly sketch map of the upper and lower axle sleeve of fastening wheels of the present invention.

Figure 15 is the schematic top plan view () of stay cord folding and unfolding control device when curtain sheet group furls of another embodiment of the present invention.

Figure 16 is the schematic top plan view (two) of stay cord folding and unfolding control device when curtain sheet group furls of another embodiment of the present invention.

Figure 17 is put the schematic top plan view of curtain sheet group for first stay cord pulling exhibition of another embodiment of the present invention.

Figure 18 is the three-dimensional exploded view of an embodiment again of stay cord folding and unfolding control device of the present invention.

Figure 19 is the assembly sketch map of Figure 18.

The specific embodiment:

Combine specific embodiment and accompanying drawing that the present invention is done a detailed description at present.

See also sketch map of the present invention shown in Figure 1.Diagram improvement curtain 10 includes rail chair 20 on, once rail chair 30, a curtain sheet group 40, one first stay cord 50, one second stay cord 60 and a stay cord folding and unfolding control device 70.Said stay cord folding and unfolding control device 70 is located in the conduit of rail chair 20; It can furl and open puts first,

second stay cord

50 and 60; The said rail chair 20 of going up has the open-work that several run through the bottom, and among the embodiment as shown in the figure, this open-work is respectively first open-work 21 and second open-work 22.

Said rail chair 30 compartment of terrains down are arranged at the below of rail chair 20; Said curtain sheet group 40 has curtain sheet and stay cord group 80 (see figure 3)s, and its upper/lower terminal is connected on rail chair 20 and the following rail chair 30; First stay cord 50 is made continous way and is launched downwards in order to control down rail chair 30, and the one of which end connects stay cord folding and unfolding control device 70, and its other end passes outside first open-work 21 of rail chair 20; Second stay cord 60 is done stagely upwards to furl in order to control down rail chair 30, and the one of which end is fixed and is set around on the stay cord folding and unfolding control device 70, and its other end winding also passes outside second open-work 22 of rail chair 20.By this, the user can utilize the function of first,

second stay cord

50,60 and stay cord folding and unfolding control device 70, stably controls curtain sheet group 40 and upwards furls or launch certain altitude downwards.

Please cooperate again and consult shown in Fig. 2-6; Opposite side with respect to stay cord folding and unfolding control device 70 on the said upward rail chair 20 is provided with first open-work 21 and second open-work 22; Said stay cord folding and unfolding control device 70 is arranged in the rail chair 20 and locatees first stay cord 50 and second stay cord 60 in order to clip, and this stay cord folding and unfolding control device 70 includes a pedestal 71, a movable block 715, a fastening roller set 72, a driven wheel 73, an equipment gear group 74, a positioning body 75 and a loam cake 76.Said pedestal 71 is provided with the box body in order to the shrinkage pool 710 that penetrates stay cord group 80 for a upper opening and a side; Pedestal 71 upper ends are provided with concave face 711; Inside is divided into first room 712 and second room 713, between this two

room

712 and 713, is formed with accommodation space 714; In first room 712, be provided with the roller shaft 7121 and axostylus axostyle 7122 that can supply roller 7120 to be inserted in, the top of its inner space also is provided with pushes up the piece 7123 of pulling, and the below also is provided with backstay 7124 and nose bar 7125 (see figure 3)s; The bottom of second room 713 be provided with one have a plane through hole 7131, and a side angle of this second room 713 falls to being provided with a pair of guide channel 7132, in guide channel 7132, can supply pulley 7133 clips; One side bottom of the accommodation space 714 between first,

second room

712 and 713 be provided with the perforation 7141, its opposite side is provided with positioning convex rod 7142, its bottom also be provided with one can supply said driven wheel 73 to be inserted in oblique shape elongated hole 7143 (see figure 6)s; Be equipped with a movable block 715 in this accommodation space 714; One end of this movable block 715 is provided with the through hole 7151 in order to pass first stay cord 50; Its bottom is provided with fixed bar 7152 and groove 7153 (see figure 6)s, is provided with a spring 716 in this groove 7153, and an end 7161 of this spring 716 colludes on fixed bar 7152; The other end 7162 is fixed on the positioning convex rod 7142, thereby movable block 715 can slide in accommodation space 714 by the elastic force of spring 716.The locking roller set 72 is disposed inside the first chamber 712, which includes a roll of wire wheel 721, a card given block 722 and an elastic member 723; the reel 721 to pass through it in the first chamber 712 of the shaft 7122, and its upper end portion provided with a gear 7211, the middle of a roll groove 7212, the lower end of a ratchet 7213 (see Figure 6), the volume around a rope groove 7212 in the group of 80; said card given block 722 provided in the first chamber axis of the positioning rod 712 7124, and its one end is provided with a lower end portion of reel ratchet wheel 721 is formed for locking the 7213 terminal 7221, and the other end with the convex portion 7222; the One end of the elastic member 723 provided on the locking hook 7231 block 7222 the convex portion 722, and the other end fixed to the convex bar 7232 sets 7125 (see Figure 3), whereby the locking block 722 of the positioning rod 7124 is axis, when the rope 50 is fixed to the first convex portion 7222 is pulled, the other end side of the card is moved in the opposite direction 7221.The center of said driven wheel 73 is provided with axostylus axostyle 731, and this axostylus axostyle 731 is inserted in the oblique shape elongated hole 7143 on the pedestal 71 and the mobile (see figure 6) on edge.Said equipment gear group 74 is arranged at the inside of second room 713 of pedestal 71; Its upper end is provided with a gear 741; One has the axostylus axostyle 7411 that plane and an end be provided with conduit 7412 is set in the core wheel of gear 741, and this axostylus axostyle 7411 is installed with in the through hole 7131 of second room 713; The stage casing of this equipment gear group 74 is provided with spiral groove 742; For 60 windings of second stay cord; Its lower end is provided with recessed groove 743 (see figure 5)s; One end 7441 of one flexure strip 744 is positioned in the recessed groove 743, and the other end 7442 clips of this flexure strip 744 are in the conduit 7412 of axostylus axostyle 7411, thereby flexure strip 744 is placed in the recessed groove 743.Said positioning body 75 is nested with on the concave face 711 of pedestal 71; Which is provided with first trepanning 751, elongated hole 752 and second trepanning 753 that supply respectively that fastening roller set 72, driven wheel 73 and equipment gear group 74 penetrate; And also be provided with the trepanning 754 that supplies roller 7120 to penetrate in the one of which side, place the positioning body 75 of pedestal 71 tops to make between fastening roller set 72 and the equipment gear group 74 and can be located by connecting better.Said loam cake 76 is for being covered on the lid of pedestal 71 tops; Which is provided with several through holes; Among the embodiment as shown in Figure 2, first, second, third through hole 761,762,763 and the microscler through hole 764 that this axostylus axostyle 731 of counting roller shaft 7121,

axostylus axostyle

7122,7411 and driven wheel 73 that through hole is an abutment body 71 wears.

See also Fig. 1 and shown in Figure 3 again; Be provided with the stay cord folding and unfolding control device 70 that can cooperate first,

second stay cord

50 and 60 to control 40 actions of curtain sheet group together in the last rail chair 20 of improvement curtain 10 according to the invention; One side of last rail chair 20 bottoms is provided with first, second open-

work

21 and 22; One end of first stay cord 50 is fixed on the stay cord folding and unfolding control device 70; Other end winding also passes outside rail chair 20 first open-works 21, and an end of this second stay cord 60 is fixed and is set around on the stay cord folding and unfolding control device 70 and passes outside second open-work 22.

Referring again to Figure 4 and Figure 5, the present invention is improved curtain 10 of the retractor in the actual shutter plate group 40, the second pull down directly to the hand rope 60 to pull the auxiliary gear 74, the auxiliary gear set 74 in the clockwise direction, and to the bottom of the elastic sheet 744 is formed like the retractor, while the drive wheel 73 is also rotated and the locking roller sets 72 and engages the locking roller and the auxiliary group 72 along the same gear set 74 The direction of rotation, and then refer to Figure 6, when the locking wheel set 72 is rotated, the spinning reel 721 7212 Volume trunking group of 80 for the rope retractor, coupled with the locking block 722 cards end 7221 721 spinning reel with the lower end of the locking ratchet 7213 form, you can synchronize the screens films for up retractor group of 40 to a predetermined height.When second stay cord 60 continues to spur again, then can make curtain sheet group 40 continue upwards to furl again action downwards.

Please cooperate consult Fig. 7, shown in 8; When the user is expanded to predetermined altitude downwards with curtain sheet group 40; Can spur first stay cord 50 downwards, driven wheel 73 return, make the fastening roller set 72 of original engagement and driven wheel 73 form the disengaging shape by the promotion of movable block 715; Consult Fig. 9 again; Because the protuberance 7222 of fastening piece 722 is subjected to affecting of first stay cord 50; The card end 7221 of fastening piece 722 that forms fastenings with the ratchet of fastening roller set 72 bottoms 7213 is to moving in the other direction; Ratchet 7213 and card end 7221 are broken away from; Thereby furl stay cord group 80 in the spiral groove 7212 on fastening roller set 72 stage casings and go out of lock and form and open the action of putting downwards, thereby make curtain sheet group 40 be expanded to predetermined altitude downwards, so that the user indiscriminately ad. as one wishes adjusts the bright state of the interior space.

Please consult the sketch map of Figure 10 and another embodiment of the present invention shown in Figure 11 again, the stay cord folding and unfolding control device 70a of said improvement curtain includes a framework 71a, an auxiliary wheels 72a and a fastening wheels 73a.This framework 71a inside is provided with permeable type room 710a; Its upper and lower end face is respectively equipped with axis hole 711a, trepanning 712a and number through hole; This is counted through hole and in embodiment shown in figure 10, is made as the first through hole 713a, the second through hole 714a, and the side of this framework 71a is provided with holds the perforation 715a that stay cord group 80 penetrates.The auxiliary wheel set shaft 72a connected to the chamber 710a in the shaft hole 711a, which includes a reel 721a, an elastic member 722a, a shaft 723a and a roller 724a; 721a of the reel is provided with a

seat body

7211a, 7211a of the wheel extends above the seat body is provided with a

protrusion

7212a, 7212a provided inside the projection portion recess 7213a, the center wheel seat body has a through hole 7211a through 7214a, and its periphery with slots 7215a; said elastic member cap 722a provided in the reel body 721a wheel seat the convex portion 7212a 7211a periphery of its inner end and an outer end portion of the hook portion 7221a is formed and 7222a, respectively, are fixed in the slot 7215a and the hook locking the wheels 73a ; said sleeve 723a has a shaft hole 7231a, while wearing their seat body sets in round through hole 7214a 7211a and a rope with a group of 80 for moving the wheel groove rollers 724a within the center hole 7241a, and through the shaft rod 725a of the shaft hole 723a penetrating shaft 7231a and the frame 71a, the lower end of the shaft hole 711a is fixed, so that the auxiliary wheel set shaft 72a provided on the side of the frame 71a.

See also shown in Figure 10-12; Said fastening wheels 73a is coupling in the trepanning 712a of room 710a, and it includes a reel 731a, a upper and

lower axle sleeve

732a and 733a, a reel 734a, a upper and

lower body

735a and 736a and a fastening piece 737a.The spinning reel 731a is provided with a

seat body

7311a, 7311a seat body has the wheel for the second rope 60 is wound around the roll groove 7312a, its upper part is provided with a protrusion extending 7313a, located inside the convex portion 7313a a groove 7314a, the center wheel seat body has a through hole 7311a through 7315a, and its periphery provided with a

slot

7316a, 7316a of the slot for the elastic member 722a of the hook end portion of the outer hook portion 7222a solid; the upper , the

sleeve

732a and 733a provided on the reel wheel 731a of the through hole 7315a, and the axis of the reel 734a, and their mutual engage the engaging end portions of a

portion

7321a and 7331a, each located in the center of a

shaft hole

7322a and 7332a, the other end of the sleeve 732a has a rod having a card end portion 7324a 7323a, 7323a outer edge of the lever to set up a

curved stopper cap

7325a, 7323a of the lower portion of the rod There is a removable ramp for bolt-shaped slot 7327a 7326a, in addition to the perimeter and lower bushings 733a engaging portion 7331a is provided near the

pin hole

7333a, 7334a for fixing pin inserted and fixed in the next reel shaft 733a 734a medium; said reel spinning reel 734a 731a provided at the bottom of the wheel seat body 7311a, the center has a sleeve for the next set into the sleeve holes 733a 7341a, its outer periphery a group of 80 for the rope is wound around volume trunking 7342a, its bottom with

ratchet

7343a, 7343a The end of the ratchet with

depression surface

7344a, 7344a of the inner sleeve has a concave surface spring 7345a; said upper cover body 735a sets placed in the frame of the sleeve hole 71a 712a in which a shaft body 735a 7354a penetrate the cap and to the locking wheel 73a fixed to the frame body 71a, the other side of the

chamber

710a, 735a at the top of the cover body of a piece of body 7351a, which insert is provided with a

lower extension bump

7352a, 7352a bumps inside the insert having a receiving groove 7353a (see Figure 13), the receiving groove 7353a for a curved outer sleeve with stopper 7325a into the upper sleeve 732a; said lower sleeve valve body 736a is a spring against the block 7345a; axis of the locking block is located in the accommodating chamber 737a 710a 714a on the second through hole, one end of the bottom is provided with a reel ratchet wheel 734a is formed for locking

7343a end

7371a, 7371a near the end position of the card has a threading hole 7372a, in order to bind the solid first rope 50, and the other end has a

hole

7373a, 7373a of the hole 738a for one end of the elastic member 7381a for fixing hook, the resilient The other end of the member 738a to the frame locking 7382a 71a on the second through hole 713a, the elastic member 738a can thus locking the block 737a to the second through-hole 714a of the rotation axis center of the hole, when the first rope 50 is When pulled, the other end of the locking block 737a a card terminal 7371a is moved in the reverse direction.

See Figure 11-14, the present invention improved retractor shutter curtain 10 in the plate group 40, simply pulling down the second hand directly to the

rope

60, 72a located in the secondary wheel rolled in on the reel 721a closed shape with locking wheels 73a spinning reel 731a formed solid hook

elastic elements

722a, 731a when the spinning reel is pulled counter-clockwise around the set is also accompanied by locking wheels 73a above, and sleeved on spinning reel 731a 732a by the upper sleeve-shaped slot 7326a constraints inclined downward slide, and to engage the previous lower bushing sleeve 732a 733a 734a driven wound on the reel on the rope group 80 retractor was like, this time, the rotation of the sleeve 732a synchronous drive its curved outer edge of the stopper 7325a card also turning to its end 7324a of stopper-like, and the use of the locking block 737a and the end of the card terminal 7371a reel 734a formed at the bottom of the locking ratchet 7343a, so that the rope reel 734a group of 80 along with the spinning reel 731a rotates in the same direction retractor, pull the second rope 60 per once, you can synchronize the slats up retractor group of 40, while the hand after the opening, the second rope 60 will be due to spinning reel 731a has been wound elastic force of the elastic element 722a reply (as shown in Figure 15, 16).

Please cooperate again and consult Figure 14 and shown in Figure 17; When the user is expanded to predetermined altitude downwards with curtain sheet group 40, can spurs first stay cord 50 downwards, thereby drive the card end 7371a of fastening piece 737a one end and the ratchet 7343a disengaging of original engagement; The stay cord group 80 that furls on the spiral groove 7342a of reel 734a is unlocked; And form an action of putting downwards, make curtain sheet group 40 be expanded to predetermined altitude downwards like this, thereby allow the user can indiscriminately ad. as one wishes adjust the bright state of the interior space.

Please consult a Figure 18 and an embodiment more of the present invention shown in Figure 19 again; The stay cord folding and unfolding control device 70b of said improvement curtain; The reel 721b of its fastening roller set 72b is provided with a room 7214b, the tenon 765b that this room 7214b and loam cake 76b the go up corresponding setting combination that is nested, and between tenon 765b and its room 7214b inside, lubricant is set; Therefore when 80 folding and unfoldings of stay cord group are rotated, can reach folding and unfolding effect stably.

Claims

1 an improved curtain, characterized in that: said modified curtain (10) comprises an upper seat track (20), about the rail seat (30), a curtain sheet group (40), a retractable rope control device ( 70), a first rope (50) and a second rope (60); said lower rail seat (30) provided between the upper rail seat (20) below; said curtain sheet group (40) a set of slats, and a rope (80) connected to the upper end of the rail seat (20), connected to the lower end of the rail seat (30); the rope retractable control means (70) disposed on the upper rail seat (20 ) therein; said first rope (50) connected to one end of the rope retractable control means (70), the other end of the rail wear a seat (20), the lower the rail seat to control (30) for the continuous Drill down; said second rope (60) is wound around one end fixed and retractable to the rope control device (70), and the other end of the rail wear a seat (20), the lower rail to control its seat (30) for up-stage retractor; the rope retractable control means (70) comprises a locking roller sets (72) a drive wheel (73), a moving block (715) and an auxiliary gear set (74), the locking roller sets (72) includes a roll of wire wheel (721), an engaging piece (722) and an elastic element (723), said winding wheel (721) in a shaft wear sleeve Rod (7122), and its upper end portion provided with a gear (7211), the middle groove has a volume (7212), a lower end portion of the ratchet (7213), the volume slot (7212) of a rope around a group ( 80), the locking block (722) provided at a positioning lever shaft (7124), and the locking block (722) at one end is provided with a reel wheel (721) the lower end of the ratchet (7213) determined the formation of the card card terminal (7221), the locking block (722) the other end is provided with protrusions (7222).

2. improvement curtain according to claim 1 is characterized in that: said movable block (715) one ends are provided with through hole (7151), and the bottom is provided with fixed bar (7152) and groove (7153), is provided with a spring (716) in this groove (7153).

3. improvement curtain according to claim 1 is characterized in that: an end (7231) of said flexible member (723) colludes on the protuberance (7222) of being located at fastening piece (722), and its other end (7232) cover is fixed on the nose bar (7125).

4. improvement curtain according to claim 1 is characterized in that: the center of said driven wheel (73) is provided with axostylus axostyle (731), and this axostylus axostyle (731) moves along an oblique shape elongated hole (7143).

5. improvement curtain according to claim 1; It is characterized in that: the upper end of said equipment gear group (74) is provided with a gear (741); Its stage casing is provided with spiral groove (742), and its lower end is provided with recessed groove (743), and an end (7441) of a flexure strip (744) is positioned in the recessed groove (743).

6. improvement curtain, it is characterized in that: said improvement curtain (10) includes rail chair on (20), once rail chair (30), a curtain sheet group (40), a stay cord folding and unfolding control device (70a), one first stay cord (50) and one second stay cord (60); Said rail chair (30) compartment of terrain down is arranged at the below of rail chair (20); Said curtain sheet group (40) has a curtain sheet and a stay cord group (80), and its upper end connects goes up rail chair (20), and the lower end connects rail chair (30) down; Said stay cord folding and unfolding control device (70a) is arranged in the rail chair on this (20); Said first stay cord (50) one ends connect stay cord folding and unfolding control device (70a), and the other end passes outside the rail chair (20), and it is made continous way and launch downwards in order to control down rail chair (30); Said second stay cord (60) one ends are fixed and are set around on this stay cord folding and unfolding control device (70a), and the other end passes outside the rail chair (20), and it does stagely upwards to furl in order to control down rail chair (30); Said stay cord folding and unfolding control device (70a) includes auxiliary wheels (72a) and fastening wheels (73a), and said fastening wheels (73a) include a reel (731a), a Upper shaft sleeve (732a), a Lower shaft sleeve (733a), a reel (734a), a upper sleeve body (735a), once a body (736a) and a fastening piece (737a).

7. improvement curtain according to claim 6 is characterized in that: said auxiliary wheels (72a) include one wheel (721a), is sheathed on this wheel (721a) flexible member (722a), an axle sleeve (723a) and roller (724a) outward.

As claimed in claim 7, wherein the improvement curtain, characterized in that: said?

wheel (721a) is provided with a seat body (7211a), the wheel seat body (7211a) extending above is provided with a protrusion (7212a), the projection portion (7212a) equipped with a groove (7213a), the volume wheel (721a) has a through central wheel base body (7211a) of the through hole (7214a), and the reel (721a) around the having a slot (7215a).

9. improvement curtain according to claim 8; It is characterized in that: said axle sleeve (723a) is provided with axis hole (7231a), and the through hole (7214a) and that this axle sleeve (723a) is through at wheel pedestal (7211a) simultaneously has within the centre bore (7241a) of roller (724a) of race.

A process according to claim 6, wherein the improvement curtain, characterized in that: said winding wheel (731a) is provided with a base body (7311a), the wheel base body (7311a) for a second rope (60) is wound around the roll groove (7312a), the reel (731a) is provided with a convex upper extension portion (7313a), the projection portion (7313a) equipped with a groove (7314a), reel wheel (731a) was set a there is a body through the wheel seat (7311a) through hole (7315a), while spinning reel (731a) having a peripheral card slot for solid hook (7316a).

11. improvement curtain according to claim 6; It is characterized in that: said upper and lower axle sleeve (732a, 733a) is arranged in reel (731a) and the reel (734a); Be respectively equipped with engaging piece (7321a, 7331a) in the end of bridle joint each other in this upper and lower axle sleeve (732a, 733a); And respectively be provided with axis hole (7322a, 7332a) at the center; The other end of this Upper shaft sleeve (732a) is provided with the bar portion (7323a) with card end (7324a), the sheathed block arc of the outer rim of this bar portion (7323a) (7325a), and this Upper shaft sleeve (732a) Lower Half is provided with one and supplies the mobile oblique shape draw-in groove (7326a) of latch (7327a); This Lower shaft sleeve (733a) periphery and nearly engaging piece (7331a) are provided with pin-and-hole (7333a), insert admittedly by steady pin (7334a) Lower shaft sleeve (733a) is fixed in the reel (734a).

12 according to claim 6, wherein the improvement curtain, characterized in that: said winding wheel (734a) provided on the reel wheel (731a) of the wheel seat body (7311a) of the bottom of the winding wheel (734a) Center There is a sleeve for the next (733a) set into the sleeve hole (7341a), the reel (734a) for the peripheral features drawstring group (80) is wound around the roll groove (7342a), the reel (734a) at the bottom of a ratchet (7343a), the ratchet (7343a) has a face for spring (7345a) set recessed surface (7344a).

13. improvement curtain according to claim 12 is characterized in that: said body (736a) down is a block to spring (7345a) that pull.

14. improvement curtain according to claim 12; It is characterized in that: said fastening piece (737a) is located on one second through hole (714a); This fastening piece (737a) end is provided with the card end (7371a) that forms fastening with the ratchet (7343a) of reel (734a) bottom; The position that is bordering on card end (7371a) is provided with one and supplies first stay cord (50) to tie up solid through wires hole (7372a), and this fastening piece (737a) other end is provided with one and supplies elastic component (738a) end (7381a) to collude solid perforation (7373a).

15. improvement curtain according to claim 6; It is characterized in that: said upper sleeve body (735a) is placed in the trepanning (712a); This upper sleeve body (735a) top is a block (7351a); The extension of this upper sleeve body (735a) bottom is provided with an embedding projection (7352a), and embedding projection (7352a) inside has a storage tank (7353a).