CN205689105U - The spool structure of non-dragline type window shade - Google Patents

Abstract

This utility model provides the spool structure of a kind of non-dragline type window shade, and it comprises a cord spool bars, a driven end seat is correspondingly arranged at the first end of this cord spool bars and a drive end seat is correspondingly arranged at the second end of this cord spool bars；This drive end seat comprises one first enclosing cover, one second enclosing cover and a S-shaped fixed force spring unit, wherein this S-shaped fixed force spring unit comprise that one first rolling wheel is provided as storage drum, one second rolling wheel is provided as output drum and a S-shaped strip spring leaf with reversible manner coiling between this first rolling wheel and second rolling wheel, wherein this first enclosing cover and this second enclosing cover are combined into one and have the lid between narrow shape room；In between the narrow shape room after wherein this S-shaped fixed force spring unit is folded in the combination of this first and second enclosing cover, and the both sides of the first rolling wheel of this S-shaped fixed force spring unit are the most baffled.

Description

The spool structure of non-dragline type window shade

Technical field

This utility model relates to the spool structure of a kind of non-dragline type window shade, espespecially one utilize a S-shaped fixed force spring with The spool of this window shade retracting power source when retracting or automatic re-ascending is provided, and is used for replacing and existing has drawing of dragline type window shade Rope.

Background technology

Non-dragline type window shade can be considered a kind of common window shade, and it is to have dragline type window shade to expose because of stay cord for existing So that there being the problem of the risk being wound around neck of child, and the solution of non-dragline type is proposed.Non-dragline type window shade is deposited at present In more than one piece background technology, such as US 5,787,952, US 324,135, US 2,868,285, US 6,474,394, US 8,251, 120、CN 2457317(ZL 00262405.2)、CN 100381676(ZL 200410003719.7)、CN 201794493U (ZL 201020511632.1)、CN 100381676(ZL 200410003719.7).Above-mentioned background technology is mostly to utilize One S type fixed force spring (constant-force spring is shown in CN 2457317 content), or referred to as reed-type spring (spring-steel ribbon is shown in US 8,251,120 or CN 201794493U contents) or reversible spring are (see CN 100381676 contents) etc., existing there is the stay cord of dragline type window shade to provide spool (the cord spool of this window shade in order to replace Bar) in retracting or retracting power source during automatic re-ascending.Described S type fixed force spring basically comprises the strip of a formation S-shaped shape Spring leaf and respectively coiling is at one first rolling wheel (or claim storage drum/storage drum, see US 6,474,394) and one second Rolling wheel (or claim output drum/output drum, see US 6,474,394).From the foregoing, it will be observed that single monomer with S type fixed force spring is tied For structure, it can be considered the prior art of this window shade technical field, therefore above-mentioned each window shade background technology is for applying for a patent Prior art at that time, although each window shade also quotes S type fixed force spring, but has made difference in the overall structure arrangement of window shade Change design or limit further the use pattern (i.e. window shade kind) of this window shade or another other qualificationss that increase, therefore Could apply for individually and check and approve patent.

Illustrating as a example by below lifting US 8,251,120 (i.e. CN 201794493U), US 8,251,120 is to disclose a kind of " nothing Rope type roller shutter structure (CORDLESS BLIND STRUCTURE) ", its technical characteristic (constitutive requirements) comprises former claim 1 All elements, structure and each interelement connection relationship disclosed in (independent entry), i.e. comprise a roller shutter body (1), one first Fixing seat (2), one second fix seat (3), the structure of a position-limit mechanism (4) and interelement connection relationship, the most limit this screening The use pattern (kind) of curtain.But examine that being given core by special business office of the U.S. refutes authorization book through entity, and its applicant is on reply rank Duan Zhong, further by the qualifications (limitation) disclosed in former claim 5 (dependent claims), i.e. " this Flexible element (41) include certain force spring (411) and be respectively arranged on the baffle plate (412) of fixed force spring (411) both sides, and this fixed force spring (411) one end is located at second and is fixed on seat (3), and the other end is located in rotating shaft unit (42) ", it is incorporated to former claim 1 (solely Project verification) in its scope of the claims of limit, therefore just approval U.S. patent Nos；From the foregoing, it will be observed that with US 8,251,120 are checked and approved In the scope of the claims, it has limited the use pattern (i.e. window shade kind sees its former claim 1) of this window shade the most, and More because having been incorporated into new qualifications (seeing its former claim 5), and limit wherein this position-limit mechanism (4) is applied further The structure kenel of this Flexible element (41), as this Flexible element (41) include certain force spring (411) and be respectively arranged on fixed The baffle plate (412) of power spring (411) both sides, it is, the baffle plate (412) that this fixed force spring (411) is comprised has become US 8, The one of the constitutive requirements of the scope of the claims of 251,120, causes when resolving the scope of the claims of US 8,251,120, it is impossible to deliberately ignore This baffle plate (412).

From the foregoing, it will be observed that there is its own shortcomings when implementing in above-mentioned background technology:

One, in this window shade technical field, S type fixed force spring element has been considered as prior art, but on reality is applied, Although the background technology of above-mentioned each window shade all uses a S type fixed force spring element, all structure to this S type fixed force spring element Kenel is in response to making different change design, and such as US 8, the Flexible element (41) disclosed in 251,120 necessarily includes and sets respectively In the baffle plate (412) of fixed force spring (411) both sides, the application of this S type fixed force spring element is caused to be relatively limited, such as: Use the window shade of pattern (kind) for a certain kind, manufacture end and i.e. design, die sinking must can mate use with this window shade to manufacture one S type fixed force spring element, when window shade use pattern (kind) change time, manufacture end i.e. must the most separately or redesign and open The S type fixed force spring element that mould one is new, the background technology of the most above-mentioned each window shade the most each uses the S type of an individualized design to determine power Spring element, makes S type fixed force spring element cannot become a normalization element, relatively increases manufacturing cost, be unfavorable for that power determined by S type The mass production of spring element and production management.

Its two, reality apply on, the background technology of each window shade the most each uses the S type of an individualized design to determine power bullet Spring element, and the structure kenel of the S type fixed force spring element of each individualized design, be also that parts is more and more complicated, Flexible element (41) as disclosed in US 8,251,120 necessarily includes the baffle plate being respectively arranged on fixed force spring (411) both sides (412), relatively blunt in the assembling operation of this Flexible element (41), and set up space, phase because of increase this Flexible element (41) Service efficiency to detraction Flexible element (41) (S type fixed force spring element).

Simplify not owing to existing S type fixed force spring element has, cannot standardize, manufacture and assembly cost is higher, Setting up space compared with big and that service efficiency is relatively low problem and shortcoming, this utility model is for these described problems and shortcoming, Effective solution is proposed.

Utility model content

This utility model main purpose is in that to provide the spool structure of a kind of non-dragline type window shade, and it comprises a cord volume Axostylus axostyle, a driven end seat are located at the first end of this cord spool bars and a drive end seat is located at the second end of this cord spool bars, This drive end seat comprises one first enclosing cover, one second enclosing cover and a S-shaped fixed force spring unit, wherein this S-shaped fixed force spring unit Comprise that one first rolling wheel is provided as storage drum, one second rolling wheel is provided as output drum and a S-shaped strip spring leaf coiling this Between one rolling wheel and the second rolling wheel；Wherein this first enclosing cover and this second enclosing cover are combined into one and have the lid between narrow shape room；Its During this S-shaped fixed force spring unit is folded between this narrow shape room, and the both sides of the first rolling wheel of this S-shaped fixed force spring unit do not set Baffle plate, makes this S-shaped fixed force spring unit reach structure and simplifies, standardizes, and manufacture assembly cost reduction, set up the contracting that taken up space Little effect.

For reaching above-mentioned purpose, this utility model provides the spool structure of a kind of non-dragline type window shade, it is characterised in that its bag Contain:

One cord spool bars, is wound with the cord of this window shade on its outer ring surface, and the first end axially is provided with one First shaft, is provided with the second shaft on the second relative end；

One driven end seat, it is correspondingly arranged at the outside of the first shaft of the first end of this cord spool bars, which is provided with One axle center is to bearing, in order to support an axle center part of this first shaft；And

One drive end seat, it comprises one first enclosing cover, one second enclosing cover and is folded in this first enclosing cover and the second enclosing cover S-shaped fixed force spring unit between the narrow shape room after combination, wherein the medial surface of this first enclosing cover extends towards this second enclosing cover It is provided with two separate protruding shafts；Wherein this covers that to be provided with two separate axis holes separate to correspond respectively to these two outside second Protruding shaft；Wherein this S-shaped fixed force spring unit comprises one first rolling wheel, one second rolling wheel and a S-shaped strip spring leaf, and this is first years old Rolling wheel is set in a protruding shaft and is provided as storage drum, and this volume Two wheel is set in another protruding shaft and is provided as output drum, and this S-shaped is long Bar spring leaf with reversible manner coiling between this first rolling wheel and second rolling wheel；

In between the narrow shape room after wherein this S-shaped fixed force spring unit is folded in this first enclosing cover and the combination of the second enclosing cover, and The both sides of the first rolling wheel of this S-shaped fixed force spring unit are the most baffled.

In this utility model one embodiment, further at the first rolling wheel and second rolling wheel of this S-shaped fixed force spring unit Both sides be all not provided with baffle plate.

In this utility model one embodiment, further in week of two separate protruding shafts of medial surface of this first enclosing cover Enclosing the peripheral region of the medial surface of two separate axis holes of region and this second enclosing cover, the most one-body molded to be provided with at least one convex Guiding element, in order to guide this S-shaped strip spring leaf can fitly up and down overlapping with coiling on the second rolling wheel and the first rolling wheel.

In this utility model one embodiment, the peripheral region in each protruding shaft is respectively equipped with two strip fins further It is provided as this convex guiding element, and is respectively equipped with two strip fins in the peripheral region of each axis hole and is provided as this convex guiding element, wherein Be parallel to each other or not parallel between two strip fins of this protruding shaft, between two strip fins of this axis hole between mutually Parallel or not parallel.

In this utility model one embodiment, this second shaft comprises an outward extending axle center part and for sheathed Outer shaft portion on the second end of this cord spool bars, to cover an axis hole outside second fixed to be set in this S-shaped by this for axle center part On the axle center hole of the second rolling wheel of power spring unit, make this second rolling wheel and this second shaft can along with this cord spool bars with Step rotates.

In this utility model one embodiment, this first shaft comprises an outward extending axle center part and for being set in Outer shaft portion on first end of this cord spool bars, makes this cord spool bars can carry out turning by this axle center part relative with this outer shaft portion Dynamic.

In this utility model one embodiment, this non-dragline type window shade forms a leaf spring formula zebra curtain.

In this utility model one embodiment, this non-dragline type window shade forms a leaf spring formula roller shutter.

In this utility model one embodiment, this non-dragline type window shade forms a leaf spring formula Shangri-la window shade.

Compared with prior art, this utility model of technique scheme is used to have advantages in that this S-shaped determines power Spring unit can be reached structure and simplify, standardizes, and manufacture assembly cost reduces, sets up effect of shared reduced space.

Accompanying drawing explanation

Fig. 1 is the spool structure signal of non-dragline type window shade first embodiment of the present utility model (leaf spring formula zebra curtain) Figure.

Fig. 2 is the schematic side view of embodiment illustrated in fig. 1.

Fig. 3 is a view stereo decomposing schematic representation of the spool structure of embodiment illustrated in fig. 1.

Fig. 3 A is the enlarged diagram of this S-shaped fixed force spring unit in Fig. 3.

Fig. 4 is another view stereo decomposing schematic representation of spool structure shown in Fig. 3.

Fig. 4 A is the enlarged diagram of this S-shaped fixed force spring unit in Fig. 4.

Fig. 5 is another embodiment enlarged diagram of this drive end seat (50) in Fig. 4.

Fig. 6 is the spool structure schematic diagram of non-dragline type window shade the second embodiment of the present utility model (leaf spring formula roller shutter).

Fig. 7 is the schematic side view of embodiment illustrated in fig. 6.

Fig. 8 is a view stereo decomposing schematic representation of the spool structure of embodiment illustrated in fig. 6.

Fig. 9 is another view stereo decomposing schematic representation of spool structure shown in Fig. 8.

Figure 10 is another embodiment enlarged diagram of this drive end seat (50) in Fig. 9.

Figure 11 is the spool knot of non-dragline type window shade the 3rd embodiment of the present utility model (leaf spring formula Shangri-la window shade) Structure schematic diagram.

Figure 12 is the schematic side view of embodiment illustrated in fig. 11.

Figure 13 is a view stereo decomposing schematic representation of the spool structure of embodiment illustrated in fig. 11.

Figure 14 is another view stereo decomposing schematic representation of spool structure shown in Figure 11.

Description of reference numerals: spool structure 1；Cord spool bars 10；Outer ring surface 11；First end 12；Second end 13；First turn Axle portion 20；Axle center part 21；Outer shaft portion 22；Second shaft 30；Axle center part 31；Outer shaft portion 32；Driven end seat 40；Axle center bearing 41；Drive end seat 50；First enclosing cover 51；Protruding shaft 511；Convex guiding element 512；Second enclosing cover 52；Axis hole 521；Convex guiding element 522；S-shaped is fixed Power spring unit 53；First rolling wheel 531；Second rolling wheel 532；S-shaped strip spring leaf 533；Axle center hole 534；Leaf spring formula zebra curtain 2；Window 201；Bolster 202；Zebra cord 203；Head end 204；Lower beam 205；Tail end 206；Front cord 207；Rear cord 208；Sheet Spring formula roller shutter 3；Window 301；Bolster 302；Cord 303；Lower beam 304；Leaf spring formula Shangri-la window shade 4；Window 401；Bolster 402；Front cord 403；Rear cord 404；Ladder cloth 405；Lower beam 406；Lower beam 407.

Detailed description of the invention

Coordinating diagram, after structure of the present utility model and technical characteristic thereof being described in detail such as, wherein each diagram is only in order to illustrate Structural relation of the present utility model and correlation function, the size of the most each element not arranges according to actual ratio and is not used to limit This utility model.

With reference to Fig. 1-4, the spool structure 1 of this utility model system a kind of non-dragline type window shade, in the present embodiment, this nothing is drawn Rope type window shade forms the use pattern of a leaf spring formula zebra curtain 2.

A kind of known screening of zebra curtain (zebra shade/transverse-moving zebra shade) Curtain designs, and it is to utilize a cord comprising the perspective section being spaced in turn and non-perspective section, hereon referred to as zebra cord (zebra Fabric), and this zebra cord coordinate again utilize other accessories with formed can relative movement (transverse-moving) one Cord after front cord and, user again by other operating mechanisms so that forward and backward cord relative movement (transverse- Moving) for the overlapping degree between the perspective Duan Yufei perspective section of the forward and backward cord of adjustable, as between front/rear cord Perspective is formed, as perspective Duan Yufei between front/rear cord is had an X-rayed during perspective section overlap the most corresponding with perspective section Completely obscured (non-perspective) state is formed, as perspective Duan Yufei between front/rear cord is had an X-rayed during the most corresponding overlap of section Half perspective (partly covering) state in various degree is formed, to reach the regulation of zebra curtain during Duan Wei corresponding overlap wholly or in part Use effect of transmittance or see-through.

With reference to Fig. 1-Fig. 4 A, the leaf spring formula zebra curtain 2 of the present embodiment is the indoor that correspondence is arranged on a window 201, its Mounting means is not intended to, such as, may utilize bolster 202 and lock on the upper limb (ceiling) or both sides metope of window 201.This sheet Spring formula zebra curtain 2 mainly comprises the zebra cord 203 of a tool equivalent length (highly), the head end 204 of this zebra cord 203 be to Upper retracting is on the outer ring surface 11 of this cord spool bars 10, and this zebra cord 203 is downwardly extended by this head end 204 and walked around Bar 205 and turn again to extension, make the tail end 206 of this zebra cord 203 to hang and be fixed at a upper limb, so this zebra curtain Cloth 203 must be formed by walking around this lower beam 205 can relative movement (transverse-moving) one before cord 207 and Rear cord 208.

The spool structure 1 of non-dragline type window shade of the present utility model comprises: cord spool bars 10,1 first shaft 20, one second shaft 30, driven end seat 40 and a drive end seat 50.

The zebra cord 203 of this leaf spring formula zebra curtain 2 it is wound with on the outer ring surface 11 of this cord spool bars 10.This first turn Axle portion 20 is located on the first axial end 12 of this cord spool bars 10, and this second shaft 30 is located at this first end 12 relative On second end 13.

This first shaft 20 comprises an outward extending axle center part 21 and an outer shaft portion 22 for being set in this cord spool On first end 12 of bar 10, make this cord spool bars 10 can rotate relative to this axle center part 21 with this outer shaft portion 22.

This second shaft 30 comprises an outward extending axle center part 31 and an outer shaft portion 32 for being set in this cord spool On second end 13 of bar 10, this cord spool bars 10 and this second shaft 30 is made Tong Bu to rotate.

This driven end seat 40 is the outside of the first shaft 20 of the first end 12 being correspondingly arranged at this cord spool bars 10, its It is provided with an axle center bearing 41 in order to support the axle center part 21 of this first shaft 20.

This drive end seat 50 comprises one first enclosing cover 51,1 second enclosing cover 52 and a S-shaped fixed force spring unit 53 is folded in In between the narrow shape room after this first enclosing cover 51 and the combination of the second enclosing cover 52；Wherein the medial surface extension of this first enclosing cover 51 is provided with two Individual separate protruding shaft 511 is with towards this second enclosing cover 52；Wherein this second enclosing cover 52 is provided with two separate axis holes 521 to divide Dui Yingyu these two separate protruding shafts 511.Wherein this S-shaped fixed force spring unit 53 comprises one first rolling wheel 531 and is set in one Be provided as storage drum (storage drum) in protruding shaft 511, one second rolling wheel 532 be set in be provided as in another protruding shaft 511 defeated Go out drum (output drum) and a S-shaped strip spring leaf 533 with reversible manner coiling at this first rolling wheel 531 and the second rolling wheel Between 532 as shown in Figure 3A.Wherein this first enclosing cover 51 and this second enclosing cover 52 are combined into one and have the lid between narrow shape room.

During assembling, the first rolling wheel 531 of this S-shaped fixed force spring unit 53 and the second rolling wheel 532 correspondence respectively is made to be set in In each protruding shaft 511, and make this S-shaped strip spring leaf 533 with reversible manner coiling at this first rolling wheel 531 and the second rolling wheel 532 Between (as shown in Figure 3A), then cover this second enclosing cover 52, the outward extending axle center part 31 making this second shaft 30 must be logical Cross the axis hole 521 of a correspondence to be set on the axle center hole 534 of the second rolling wheel 532 of this S-shaped fixed force spring unit 53, make this Two rolling wheels 532 can be along with this cord spool bars 10 synchronous axial system with this second shaft 30, to reach this S-shaped fixed force spring unit The use function of 53.

Of the present utility model it is mainly characterized by: this S-shaped fixed force spring unit 53 is directly to be folded in this outside first In between the narrow shape room after lid 51 and the combination of the second enclosing cover 52, and the first rolling wheel 531 (storage drum) of this S-shaped fixed force spring unit 53 Both sides the most baffled, as shown in Fig. 3 A, 4A, so avoid element manufacturing cost and the assembly cost of this baffle plate, and relatively may be used That reduces this baffle plate sets up space.

With reference to Fig. 6-9, in the present embodiment, spool structure 1 of the present utility model is to be applied on a leaf spring formula roller shutter 3, This non-dragline type window shade i.e. forms the use pattern of a leaf spring formula roller shutter 3, but, the spool knot that this leaf spring formula roller shutter 3 is used Structure 1 is still equal to spool structure 1 as shown in figs. 1-4.

A kind of known window shade design of leaf spring formula roller shutter 3, the leaf spring formula roller shutter 3 of the present embodiment is corresponding installation In the indoor of a window 301, its mounting means is not intended to, such as, may utilize bolster 302 and lock in the upper limb such as sky of window 301 On card or both sides metope.This leaf spring formula roller shutter 3 mainly comprises the cord 303 of a tool equivalent length (highly), this cord 303 Head end system scrolls up on the outer ring surface 11 of the cord spool bars 10 being received in this spool structure 1, the end (lower end) of this cord 303 Being coated with a lower beam (or vertical heavy bar) 304, this cord 303 must stretch with downward by pulling this lower beam (or the weight bar that hangs down) 304, or opens This lower beam dynamic (or weight bar that hangs down) 304 is so that this cord 303 upwards furls to this cord spool bars 10 such as geosutures institute in Fig. 6 Show.

With reference to Figure 11-Figure 14, in the present embodiment, spool structure 1 of the present utility model is to be applied to leaf spring formula perfume (or spice) lattice On lira window shade 4, i.e. this non-dragline type window shade forms the use pattern of a leaf spring formula Shangri-la window shade 4, but, this leaf spring formula The spool structure 1 that Shangri-la window shade 4 is used still is equal to spool structure 1 as shown in figs. 1-4.

A kind of known window shade design of leaf spring formula Shangri-la window shade 4, in the leaf spring formula perfume (or spice) lattice of the present embodiment Drawing window shade 4 is the indoor that correspondence is arranged on a window 401, and its mounting means is not intended to, such as, may utilize bolster 402 and lock On the upper limb of window 401 such as ceiling or both sides metope.This leaf spring formula Shangri-la window shade 4 generally comprises the front cord of a perspective 403 be fixed on the side of this cord spool bars 10, one perspective rear cord 404 be fixed on this cord spool bars 10 opposite side, And the ladder cloth 405 of most non-perspective is crossed on this front cord 403 and rear cord the most at equal intervals in horizontal S shape Between 404, wherein the bottom at this front cord 403 and rear cord 404 respectively sets a lower beam (or the weight bar that hangs down) 406,407；In using, When to make this perspective front cord 403 and after cord 404 can be separated into forward and backward two positions and the ladder cloth 405 of each non-perspective also Respectively it is crossed in horizontal S shape between this front cord 403 and rear cord 404 as depicted in figs. 11-12, this front cord 403 need to be pulled Lower beam (or weight bar that hangs down) 406 is to be drawn down to the end, then changes the lower beam 407 drawing this rear cord 404, this leaf spring formula Shangri-la window shade 4 i.e. can form open mode (indoor and outdoor formed can perspective)；The most also the lower beam of this front cord 403 can be pulled downward on 406 a small distance are pushed up again, then the front cord 403 can having an X-rayed and rear cord 404 produce and close, and the ladder of each non-perspective The most perpendicular shape of cloth 405, makes this leaf spring formula Shangri-la window shade 4 form closed mode (indoor and outdoor forms non-perspective)； When to furl this leaf spring formula Shangri-la window shade 4, the lower beam (or the weight bar that hangs down) 406 that can promote this front cord 403 should to start Spool structure 1 furls this front cord 403 with the active force by this S-shaped fixed force spring unit 53 and rear cord 404 scrolls up Being received on this cord spool bars 10, the most upwards the above higher position that rises to of retracting is as shown in geosutures in Figure 12, makes this Leaf spring formula Shangri-la window shade 4 forms rolled condition.

Although the use pattern of above-mentioned applied leaf spring formula roller shutter 3 or leaf spring formula Shangri-la window shade 4 is different from figure Leaf spring formula zebra curtain 2 shown in 1-Fig. 4 but the action function of the spool structure 1 of non-dragline type window shade of the present utility model and Purpose effect, the most more or less the same, the main difference between three is only that: this driven end seat 40 and/or this drive end seat 50 In the first enclosing cover 51 and the shape of the second enclosing cover 52 or its appearance design, or the first enclosing cover 51 in two protruding shafts 511, depend on installation Direction, can arrange up and down or front and back, i.e. this S-shaped fixed force spring unit 53 of relative effect or its first rolling wheel 531 and volume Two The relative position of wheel 532, the drive end seat 50 in being the most i.e. different from such as Fig. 8-9 such as the drive end seat 50 in Fig. 3-4.

In fact, when actual fabrication, the spool structure 1 of non-dragline type window shade of the present utility model, its spool must possessed On the basis of the action function of structure 1 and purpose effect, more can be with the use pattern of each applied non-dragline type window shade, such as sheet Spring formula zebra curtain 2, leaf spring formula roller shutter 3 or leaf spring formula Shangri-la window shade 4 etc., and for subelement therein, as this is driven The first enclosing cover 51 in end seat 40 or this drive end seat 50 and the setting of two protruding shafts 511 in the second enclosing cover 52 or this first enclosing cover 51 Vertical positions etc., in response to making different change designs in shape or appearance design, but also must can retain identical design, the most just It is to use the spool structure 1 with same size or shape or appearance design to be applied to leaf spring formula as Figure 1-Figure 4 Zebra curtain 2 or the leaf spring formula Shangri-la window shade 4 shown in leaf spring formula roller shutter 3 or Figure 11-Figure 14 as shown in Fig. 6-Fig. 9.

Additionally, with reference to Fig. 5, Figure 10, this utility model is further at the first rolling wheel 531 of this S-shaped fixed force spring unit 53 (storage drum) and the both sides of the second rolling wheel 532 (output drum), be all not provided with baffle plate, the most effectively reduce or avoid the unit of this baffle plate Part manufacturing cost, assembly cost and set up space.

Additionally, at the peripheral region of two separate protruding shafts 511 of medial surface of this first enclosing cover 51 and this second enclosing cover The peripheral region of the medial surface of two separate axis holes 521 of 52, obtains and the most one-body molded is provided with at least one convex guiding element 512,522, in order to replace original baffle plate set on the both sides of the second rolling wheel 532 and/or the first rolling wheel 531, with to Reversible manner coiling S-shaped strip spring leaf 533 on the second rolling wheel 532 and the first rolling wheel 531 produces limit effect, i.e. in order to Guide this S-shaped strip spring leaf 533 can fitly up and down overlapping with coiling on the second rolling wheel 532 and the first rolling wheel 531.

Shape as this convex guiding element 512,522 is not limiting as, and it may be designed to multiple difformity；With Fig. 5, shown in 10 Convex guiding element 512,522 as a example by explanation but be not used to limit this utility model, the convex guiding element 512,522 of the present embodiment be designed to tool The strip fin of suitable length；Additionally, in such as Fig. 5,10 illustrated embodiments, be respectively provided with in the peripheral region of each protruding shaft 511 Two strip fins supply as this convex guiding element 512, and are respectively provided with two strip fins confessions in the peripheral region of each axis hole 521 As this convex guiding element 522.Additionally, in such as Fig. 5,10 illustrated embodiments, these two strip fins 512 are parallel to each other but non-use To limit this utility model, these two strip fins 522 are parallel to each other but are not used to limit this utility model, and i.e. these two long Between strip fin 512 or this two strip fins 522, must be parallel to each other or not parallel.

Described above it is merely exemplary for this utility model, and nonrestrictive, those of ordinary skill in the art Understand, in the case of the spirit and scope limited without departing from claim, can many modifications may be made, change or equivalence, but Within falling within protection domain of the present utility model.

Claims (9)

1. the spool structure of a non-dragline type window shade, it is characterised in that it comprises:

One cord spool bars, is wound with the cord of this window shade on its outer ring surface, and the first end axially is provided with one first Shaft, is provided with the second shaft on the second relative end；

One driven end seat, it is correspondingly arranged at the outside of the first shaft of the first end of this cord spool bars, which is provided with an axle The heart is to bearing, in order to support an axle center part of this first shaft；And

One drive end seat, it comprises one first enclosing cover, one second enclosing cover and is folded in this first enclosing cover and the combination of the second enclosing cover After narrow shape room between in S-shaped fixed force spring unit, wherein the medial surface of this first enclosing cover towards this second enclosing cover extend be provided with Two separate protruding shafts；Wherein this covers that to be provided with two separate axis holes separate convex to correspond respectively to these two outside second Axle；Wherein this S-shaped fixed force spring unit comprises one first rolling wheel, one second rolling wheel and a S-shaped strip spring leaf, this first volume Wheel is set in a protruding shaft and is provided as storage drum, and this volume Two wheel is set in another protruding shaft and is provided as output drum, this S-shaped strip Spring leaf with reversible manner coiling between this first rolling wheel and second rolling wheel；

In between the narrow shape room after wherein this S-shaped fixed force spring unit is folded in this first enclosing cover and the combination of the second enclosing cover, and this S-shaped The both sides of the first rolling wheel of fixed force spring unit are the most baffled.

2. the spool structure of non-dragline type window shade as claimed in claim 1, it is characterised in that: determine power bullet in this S-shaped further First rolling wheel of spring unit and the both sides of the second rolling wheel are all not provided with baffle plate.

3. the spool structure of non-dragline type window shade as claimed in claim 2, it is characterised in that: further at this first enclosing cover The peripheral region of the medial surface of the peripheral region of two separate protruding shafts of medial surface and two separate axis holes of this second enclosing cover Territory, the most one-body molded at least one convex guiding element that is provided with, in order to guide this S-shaped strip spring leaf can fitly up and down overlapping with around Volume is on the second rolling wheel and the first rolling wheel.

4. the spool structure of non-dragline type window shade as claimed in claim 3, it is characterised in that: further around each protruding shaft Region is respectively equipped with two strip fins and is provided as this convex guiding element, and is respectively equipped with two strips in the peripheral region of each axis hole Shape fin is provided as this convex guiding element, is wherein parallel to each other or not parallel between two strip fins of this protruding shaft, this axis hole It is parallel to each other or not parallel between two strip fins.

5. the spool structure of non-dragline type window shade as claimed in claim 1, it is characterised in that: this second shaft comprise one to The axle center part of outer extension and one is for the outer shaft portion that is set on the second end of this cord spool bars, and axle center part is by this outside second Cover an axis hole to be set on the axle center hole of the second rolling wheel of this S-shaped fixed force spring unit, make this second rolling wheel with this second Shaft can be along with this cord spool bars synchronous axial system.

6. the spool structure of non-dragline type window shade as claimed in claim 1, it is characterised in that: this first shaft comprise one to The axle center part of outer extension and one, for the outer shaft portion being set on the first end of this cord spool bars, makes this cord spool bars outer with this Axle portion can rotate relative to this axle center part.

7. the spool structure of non-dragline type window shade as claimed in claim 1, it is characterised in that: this non-dragline type window shade forms one Leaf spring formula zebra curtain.

8. the spool structure of non-dragline type window shade as claimed in claim 1, it is characterised in that: this non-dragline type window shade forms one Leaf spring formula roller shutter.

9. the spool structure of non-dragline type window shade as claimed in claim 1, it is characterised in that: this non-dragline type window shade forms one Leaf spring formula Shangri-la window shade.