CN200996260Y

CN200996260Y - Curtain roll-up structure without drawstring

Info

Publication number: CN200996260Y
Application number: CN 200720001138
Authority: CN
Inventors: 洪试闵; 洪志伸
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-05-24
Filing date: 2007-01-19
Publication date: 2007-12-26
Anticipated expiration: 2017-01-19

Abstract

The utility model provides a curtain retracting structure without a pull cord, which mainly includes a wire collection seat and a return mechanism, which mainly utilizes a small helical guide gear of the return mechanism to vertically mesh with a large umbrella-shaped helical gear with a rotating shaft, and the large umbrella-shaped helical gear is connected and linked with a first scroll spring wheel, and a second scroll spring wheel is provided, the first scroll spring wheel and the second scroll spring wheel are combined with the two ends of a spring to release and absorb the retracted amount of the spring; therefore, the utility model can be applied to curtains with a very long vertical length. The vertical pressure of the large umbrella-shaped helical gear by the small helical guide gear cooperates with the weight of the curtain to produce the effect of vertical follow-up brake.

Description

A kind of curtain that does not have stay cord furls structure

Technical field

The utility model relates to a kind of structure that furls of curtain, in particular a kind of can be in little space, the speed change that reaches no stay cord (CORDLESS) curtain of the maximum amount of crispaturaing furls structure.

Background technology

Curtain is in the modern room, mainly as the usefulness of sunshade with the protection privacy, also is used for interspersing, decorate the attractive in appearance of room, even show the taste in room; And modern curtain launches for facility and furls blade, and a stay cord all can be set on its structure, with the lifting of traction blade; Yet the exposed length of stay cord but easily enwinds the child in playing.

In order to improve the shortcoming of aforementioned techniques, M289810 number exposure of TaiWan, China patent gazette a kind of " Window curtain structure of no stay cord (one) ", as shown in Figure 1 to Figure 3, described Window curtain structure 1 mainly is in the both sides of upper beam 11 holder 12 and a serving controller 13 to be set respectively, but be provided with the sliding seat 14 of a line slip between described holder 12 and described serving controller 13 in the described again upper beam 11, and a transmission rope 15 is to be cemented in described serving controller 13 and described sliding seat 14, and an end of another folding and unfolding rope 16 wore the curtain body, and be cemented on the underbeam 17, the other end is then worn synchronously and is walked around described holder 12 and sliding seat 14, forms fixed with described holder 12 again.

According to by above-mentioned structure, make underbeam 17 in the described Window curtain structure 1 in the process of descending development, as shown in Figure 1, described folding and unfolding rope 16 is to spur described sliding seat 14 and slippage one distance (seeing also shown in the arrow among Fig. 1), and the transmission rope 15 on the described at the same time sliding seat 14, be the rotating seat 131 row rotation starts of the described serving controller 13 of driven in synchronism, and make the torque spring 132 of both sides, bottom crispatura and put aside one and recover elastic force; In addition when described underbeam 17 during up folding, described underbeam 17 and blade 18 thereof are promptly under the effect of torque spring 132 spring returns, described transmission rope of interlock 15 and folding and unfolding rope 16 in regular turn, and described underbeam 17 and blade 18 thereof are upwards folded, as shown in Figure 2.

Yet, though existing Window curtain structure 1 can save the setting of stay cord, but still there are some shortcomings, division is as follows:

One, owing to distance between upper beam 11 that has Window curtain structure 1 now and the underbeam 17, weak point person has tens centimeters, the elder often has two, three meters, and increase and decrease along with aforementioned intervals, must dispose the torque spring 132 that a length can be complementary in the existing serving controller 13, can make its start smooth and easy, and thus, length lengthening because of torque spring 132, except that the volume that makes described torque spring 132 increases, also cause the volume of described serving controller 13 to become big relatively, and this promptly cause subsequent group to be contained in the inconvenience and the puzzlement of the upper beam 11 of Window curtain structure 1.

Two, again, during in a single day described torque spring 132 meets and put the beams in place 11, underbeam 17 spacings are long Window curtain structure 1, the degree that described torque spring 132 is crispaturaed also can heighten, and therefore described torque spring 132 very easily after using a period of time, is easily given birth to elastic fatigue; What is more, produce situations such as distortion or fracture, cause Window curtain structure 1 fault can't lifting.

Three moreover, because described transmission rope 15 be the relation of mutual interlock with folding and unfolding rope 16, thus meet put the beams in place 11, underbeam 17 big between apart from the time, described transmission rope 15 and folding and unfolding rope 16 length must relative growths; Yet, because long folding and unfolding rope 16 need constantly be worn around between holder 12 and the sliding seat 14, as shown in Figure 3, and this not only increases outside the complicated of assembling and the puzzlement, and because folding and unfolding rope 16 is worn the increase around number of times, cause the frictional force between rope body and two pedestals to uprush, and outside shortening the application life of order rope body, what is more, influence to the body of restricting discharge with furl smooth and easy.

Four, in addition, the stroke of existing sliding seat 14 slippages, be launch downwards or upwards fold according to described underbeam 11 between apart from and decide; So, existing Window curtain structure 1 is in order to satisfy being suitable for of various different spacing, the length of described upper beam 11 promptly must design according to distance between described Window curtain structure 1 maximum, but not that door and window dimensional configurations according to job site reality forms, so existing Window curtain structure 1 at all can't the coordinative construction scene in the real size of door and window do corresponding configuration, and cause the practicality of existing Window curtain structure 1 to reduce.

Summary of the invention

The purpose of this utility model is the defective that overcomes above-mentioned prior art, provide the curtain of a kind of no stay cord (CORDLESS) to furl structure, it mainly is the small oblique guiding gear that utilizes debooster being upright big umbrella shape helical gear to engagement one rotating shaft vertically, and described big umbrella shape helical gear and first scrollwork reed wheel form binding and interlock, and be provided with second scrollwork reed wheel, the first scrollwork reed wheel and the second scrollwork reed are taken turns the two ends of the reed that mutually combines, with mutual release and the folding and unfolding amount that absorbs reed; Therefore can be so that the utility model can be useful in vertically to the very long curtain of length.And by small oblique guiding gear for the helical gear vertical compacting of big umbrella shape, cooperate curtain weight (power) to produce vertically effect to the servo-actuated brake.

The purpose of this utility model realizes by following technical proposals, the curtain of no stay cord provided by the utility model furls structure and mainly comprises a line concentration base (filament that the line concentration of described line concentration base is collected, filament for the suspention curtain, or title rope, " rope " for the utility model what is called of avoiding confusion " no stay cord ", therefore claim with " filament ") and a debooster, described line concentration base axial region is established a line concentration tube, described debooster stretches through axial region at the line concentration tube to form the commentaries on classics of pulling by a drive link, described debooster comprises that then one is connected the small oblique guiding gear of drive link, described small oblique guiding gear is being upright big umbrella shape helical gear to engagement one rotating shaft vertically, and big umbrella shape helical gear and one first scrollwork reed wheel form and link and interlock, and establish one second scrollwork reed wheel, the first scrollwork reed wheel and the second scrollwork reed are taken turns the two ends of the reed that mutually combines, with mutual release and the folding and unfolding amount that absorbs reed; According to the gear ratio of big umbrella shape helical gear with small oblique guiding gear, to make line concentration tube scrolling rotating speed height, yet big umbrella shape helical gear is few relatively, and make the scrollwork reed wheel of winning can use less reed scrolling amount to reach scrolling line concentration tube with second scrollwork reed wheel, therefore can be so that the utility model can be useful in vertically to the very long curtain of length.And by small oblique guiding gear for the helical gear vertical compacting of big umbrella shape, cooperate curtain weight (power) to produce vertically effect to the servo-actuated brake.

Drive link of the present utility model in addition, can connect several line concentration bases, except that enough the furling the power of the curtain that the area broad can be provided, the also line concentration tube of each line concentration base of interlock synchronously, can being the level of state with the underbeam that makes described curtain, doing rises or descend promotes, to stop the puzzlement that existing structure easily produces a side.

Another purpose of the present utility model is that the curtain of implementing above-mentioned no stay cord furls structure, the outside sheathed one basic shell of wherein said debooster, the chassis of described basic shell extends upward two pillars, and first scrollwork reed wheel is a hollow with the body of second scrollwork reed wheel, and is set in each pillar outer rim.

Another purpose of the utility model is that the curtain of implementing above-mentioned no stay cord furls structure, the sheathed internal diameter of outer rim that wherein has a body at least is greater than the sliding lining of the hollow of this body diameter, and the sliding lining of described hollow be located at reed when furling state within edge, buffering during as first scrollwork reed wheel or the rotation of second scrollwork reed wheel, avoid producing reed and produce the strand spring (promptly because the speed that furls or discharge in the process of rolling or release, produce the random phenomenon of reed strand with the inharmonious of elastic compression of reed own and diastole), can provide the slip of similar bearing by the sliding lining of hollow, and cushion and the described strand spring phenomenon of skew.

The another purpose of the utility model is that the curtain of implementing above-mentioned no stay cord furls structure, the top outer rim (even bottom outer rim) of wherein said first scrollwork reed wheel is provided with gear, the top outer rim (even bottom outer rim) of second scrollwork reed wheel is provided with corresponding gear, and the two is meshing with each other and forms auxiliary scrollwork reed and takes turns the accurate transmission of mutual drawing.

Below just about technology contents of the present utility model and detailed description, show conjunction with figs. and given embodiment and describe as follows.

Description of drawings

Fig. 1 is one of existing schematic diagram of constructing;

Fig. 2 is two of existing schematic diagram of constructing;

Fig. 3 is three of existing schematic diagram of constructing;

Fig. 4 is installed in the schematic diagram of the upper beam of shutter curtain for the utility model;

Fig. 5 is installed in the schematic diagram of the upper beam of Luoman curtain for the utility model;

Fig. 6 is installed in the schematic diagram of the upper beam of blind for the utility model;

Fig. 7 is that the utility model combines three-dimensional exploded view with line concentration base;

Fig. 8 is the sectional drawing of the utility model part;

Fig. 9 is the sectional perspective exploded view of the utility model debooster.

Description of reference numerals: 1-Window curtain structure; 11-puts the beams in place; The 12-holder; 13-serving controller; The 131-rotating seat; The 132-torque spring; The 14-sliding seat; The 15-transmission rope; 16-folding and unfolding rope; The 17-underbeam; The 18-blade; 2-debooster; 2A-debooster; 2B-debooster; The 21-drive link; 22-tiltedly leads gear; The big umbrella shape helical gear of 23-; 231-horn shape groove; The 232-positioning convex column; The 233-screw; 24-first scrollwork reed wheel; The 240-body; The 241-gear; The 242-gear; The 243-limbus angulosus; The 244-screw; The 245-screw; 246-groove chamber; 25-second scrollwork reed wheel; The 250-body; The 251-gear; The 252-gear; The 253-perforation; The 26-reed; The 261-outer end; 27-base shell; The 270-chassis; The 271-pillar; The 272-pillar; The sliding lining of 273-hollow; The 275-first nest groove; The 276-second nest groove; The 277-lid; The 278-perforation; The 3-line concentration base; 31-line concentration tube; The 32-pedestal; The 4-curtain; The 41-cord; The A-connection rope.

The specific embodiment

See also Fig. 4 to shown in Figure 6, illustrate that at first the utility model is to be useful on the curtain of blind (VenetianBlind), Luoman curtain (Roman Blind) and shutter curtain multiple not same attitudes such as (being called for short honeycomb curtain Pleated Blind).

See also Fig. 7, and to cooperate accompanying drawing shown in Figure 8, shown be that the curtain that the utility model does not have a stay cord (CORDLESS) furls the structure preferred embodiment, it mainly comprises:

One debooster 2 and line concentration base 3, described line concentration base 3 is provided with a pedestal 32, and described pedestal 32 inner shafts are established a line concentration tube 32 described deboosters 2 and are stretched through at the axial region of line concentration tube 31 forming the commentaries on classics of pulling by a drive link 21, and described debooster 2 comprises:

One is connected the small oblique guiding gear 22 of drive link 21, described small oblique guiding gear 22 is being upright big umbrella shape helical gear 23 to engagement one rotating shaft vertically, the gear of described small oblique guiding gear 22 and big umbrella shape helical gear 23 is than being situated between between 1: 2 to 1: 5, to seek a preferable gear ratio and a gear ratio.And big umbrella shape helical gear 23 and one first scrollwork reed wheel 24 form and link and interlock.By being provided with a horn shape groove 231 by big umbrella shape helical gear 23 bottoms, taking turns 24 bodies, 240 tops with the first scrollwork reed, to establish a limbus angulosus 243 chimeric mutually, and establish a screw 233 by big umbrella shape helical gear 23 central authorities, the first scrollwork reed is taken turns 24 bodies, 240 tops and is established the screw 244 of a correspondence, runs through locking by a screw 245.And locate clearly for asking when assembling, and provide the assembler to be easy to identification (being commonly called as " fool proof "), the spy is provided with a location projection 232 in big umbrella shape helical gear 23 bottoms, and the first scrollwork reed is taken turns the groove chamber 246 that a correspondence is established at 24 bodies, 240 tops, plants for positioning convex column 232.

And establish the mutually combine two ends of a reed 26 of one second scrollwork reed wheel, 25, the first scrollwork reeds wheel, 24 and second scrollwork reed wheel 25, with the folding and unfolding amount of mutual release with absorption reed 26; Described mutually combining is with end within the described reed 26 (figure does not show), inserts the 273 default perforation 278 of the sliding lining of a hollow.And the outer end 261 of reed 26 then wears into the second scrollwork reed and takes turns the 250 default perforation 253 of 25 bodies, and outer end 261 can be made as the width that is slightly larger than perforation 253, and utilize the deflection of material, after forcing outer end 261 to include perforation 253 in, under the situation of no external force, be difficult for deviating from.

According to the gear ratio of big umbrella shape helical gear 23 with small oblique guiding gear 22, can make the scrolling rotating speed height of line concentration tube 31, yet big umbrella shape helical gear 23 is few relatively, can use less reed 26 scrolling amounts to reach the effect of scrolling line concentration tube 31 and make scrollwork reed the wheel 24 and second scrollwork reed of winning take turns 25, and cooperate small oblique guiding gear 22 vertical compactings and cooperate curtain weight (power) to produce vertical effect to the servo-actuated brake.

The utility model is for seeking to bring together described debooster 2, outside sheathed one basic shell 27 in described debooster 2, comparatively complete bringing together can be reached by a lid 277 sealings in described basic shell 27 tops with locking, and basic shell 27 is provided with a chassis 270, described chassis 270 extends upward two pillars 271,272 (as Fig. 8 and shown in Figure 9), and the body 250 of the body 240 of first scrollwork reed wheel 24 and second scrollwork reed wheel 25 is a hollow, and is set in each pillar 271,272 outer rim.

The utility model is when implementing, can be at the sheathed internal diameter of the outer rim of body 240 greater than the sliding lining 273 of the hollow of body 240, also can be at two bodies 240 when implementing, the sheathed internal diameter of 250 outer rim is greater than body 240, the sliding lining 273 of the hollow of 250 external diameters (the sliding lining of hollow that is set in body 250 does not then show at figure), and edge within when the sliding lining 273 of described hollow is provided in a side of reed 26 and furls state, buffering during as rotation, can avoid producing the strand spring (promptly because the speed that furls or discharge in the process of rolling or release at reed 26, produce the random phenomenon of reed strand with the inharmonious of elastic compression of reed own and diastole), can provide the slip of similar bearing by the effect of the sliding lining 273 of hollow, and cushion and the described strand spring phenomenon of skew.

Again, the utility model at basic shell 27 corresponding drive links 21 radially, the end of contiguous line concentration tube 31 be provided with at least one provide drive link 21 take to the first nest groove 275, with stable support as drive link 21.Base shell 27 is provided with the second nest groove 276 with respect to the end of the first nest groove 275, therefore makes that basic shell 27 can be inside and outside to reverse use, increases the versatility and the convenience of assembling.

The top outer rim of first scrollwork reed wheel 24 of the present utility model is provided with gear 241, the top outer rim of second scrollwork reed wheel 25 also is provided with corresponding gear 251, preferred embodiment is that the bottom outer rim that the body 240 bottom outer rims of first scrollwork reed wheel 24 also are provided with gear 242 and second scrollwork reed wheel 25 also is provided with corresponding gear 252, can assist by being meshing with each other between first scrollwork reed wheel, the 24 and second scrollwork reed wheel 25, except the mutual drawing of reed 26, an accurate transmission is arranged more.

Like this, the main function of gear is to change the mechanical speed or the direction of motion; Therefore, see also Fig. 7 and shown in Figure 8, described debooster 2 utilizes the gear ratio of big umbrella shape helical gear 23 and small oblique guiding gear 22, by the gear ratio of big umbrella shape helical gear 23 with small oblique guiding gear 22, can make the scrolling rotating speed height of line concentration tube 31, yet big umbrella shape helical gear 23 is few relatively, and makes scrollwork reed the wheel 24 and second scrollwork reed wheel 25 of winning can use less reed 26 scrolling amounts to reach the scrolling effect.Make described reed 26 after using for a long time, more do not have outside the facts generations such as elastic fatigue or distortion, also make described reed 26 in minimum limited furling under the space, can make line concentration tube 31 that higher scrolling rotating speed is arranged relatively, because the cord 41 of curtain 4 is along 31 rollings of line concentration tube, and cord 41 is subjected to the series connection of one group of connection rope A.Therefore can be at the minimum state of reed 26 scrolling amounts, the cord 41 that can allow curtain 4 relatively is vertically to long space is arranged.

When the operator utilizes vertically to pulling down the window curtain 4 cord 41 (i.e. the curtain of the no stay cord of what is called), make line concentration tube 31 relative stopper drive links 21, and since the small oblique guiding gear 22 that drive link 21 links with vertically to engagement one big umbrella shape helical gear 23, and described big umbrella shape helical gear 23 interlocks first scrollwork reed wheel 24 engagements second scrollwork reed wheel 25, therefore the compression that produces reed 26, and when the operator discharges the cord 41 of curtain 4, reed 26 former should rebounding rapidly, yet be subjected to cord 41 weight and small oblique guiding gear 22 again vertically to the big umbrella shape helical gear 23 of compacting, therefore form a braking action.And when desiring the cord 41 of rolling curtain 4, the operator upwards promotes the cord 41 of curtain 4, therefore alleviate cord 41 and drive link 21 and make small oblique guiding gear 22 vertical for big umbrella shape helical gear 23 to pressing weight, but therefore reed 26 backrush of taking advantage of the occasion, and the rotation that produces " moment " engagement small oblique guiding gear 22, and order about drive link 21 scrollings, and reclaim cord 41.See also Fig. 4 to shown in Figure 6, the utility model can be made as

debooster

2,2A, 2B many groups, and forms more powerful elasticity.

Above-mentioned explanation only is embodiment of the present utility model, and is non-for limiting embodiment of the present utility model; All personages who is familiar with described skill, it comply with feature category of the present utility model, and other equivalence of having done changes or modification, as size, material selection or change of shape etc., all should be encompassed in following the utility model institute claim.

Claims

1. A curtain retracting structure without a drawstring, which is characterized in that it includes a wire-collecting barrel and a pull-back mechanism, and the pull-back mechanism is linked by a transmission rod and the wire-collecting barrel, and the pull-back mechanism It then includes a small helical guide gear connected to the transmission rod, the small helical guide gear meshes with a large bevel helical gear vertically, and the large bevel helical gear forms a connection with a first scroll reed wheel Move, and a second scroll reed wheel is established, the first scroll reed wheel and the second scroll reed wheel combine the two ends of a reed; again, the first scroll reed wheel of the The upper outer edge is provided with a gear, and the upper outer edge of the second scroll reed wheel is provided with a corresponding gear. The gear ratio of the helical guide gear is to make the winding speed of the hub high, but the speed of the large bevel helical gear is relatively low, so that the first scroll reed wheel and the second scroll reed wheel can use less springs The rolling motion of the film reaches the rolling hub, and the small helical guide gear vertically suppresses the large bevel helical gear, which cooperates with the weight of the curtain to produce a vertical follow-up brake.

2. The drawstring-free curtain retracting structure as claimed in claim 1, wherein a base shell is sheathed outside the pull-back mechanism, and the chassis of the base shell extends upwards with two pillars, and the first vortex The coil reed wheel and the second scroll reed wheel are provided with a hollow body, and the body is sheathed on the outer edge of each pillar.

3. The drawstring-free curtain retracting structure as claimed in claim 2, wherein at least one outer edge of the main body is sheathed with a hollow sliding lining whose inner diameter is larger than the outer diameter of the main body, and the hollow sliding lining is a One end of the reed passes through the hole, and when the scroll reed wheel rotates, the hollow sliding lining provides a buffering effect.

4. The drawstring-free curtain retracting structure as claimed in claim 2, characterized in that the base shell corresponds to the radial direction of the transmission rod, and there is at least one support for the transmission rod to abut on the end of the wire-collecting tube. The first socket is used as a stable support for the transmission rod.

5. The curtain retracting structure without a drawstring as claimed in claim 4, wherein a second recess is provided at the end of the base shell opposite to the first recess.

6. The curtain retracting structure without a pull cord according to claim 1, wherein the gear ratio of the small helical guide gear to the large bevel helical gear is between 1:2 and 1:5.

7. The curtain retracting structure without a pull cord as claimed in claim 1, characterized in that, the lower outer edge of the first scroll reed wheel is provided with a gear, and the lower outer edge of the second scroll reed wheel Corresponding gears are provided on the rim, and the two mesh with each other and form a precise transmission for auxiliary scroll reed wheels to pull each other.

8. The curtain retracting structure without a pull cord according to claim 1, characterized in that, the connection and linkage between the large bevel helical gear and a first scroll reed wheel is determined by the large bevel helical gear The bottom is provided with an angular groove, which is fitted with an angular edge provided on the top of the first scroll reed wheel body.

9. The curtain retracting structure without a pull cord according to claim 1, characterized in that, the connection and linkage between the large bevel helical gear and a first scroll reed wheel is determined by the large bevel helical gear A screw hole is set in the center, and a corresponding screw hole is set on the top of the first scroll reed wheel body, through which a screw is locked.

10. The curtain retracting structure without a pull cord as claimed in claim 1, wherein a positioning post is provided at the bottom of the large bevel helical gear, and a corresponding post is provided at the top of the first scroll reed wheel body. The groove chamber is used for inserting the positioning boss.