CN105715195B

CN105715195B - The curtain detent mechanism of curtain without stretching wire

Info

Publication number: CN105715195B
Application number: CN201410738351.2A
Authority: CN
Inventors: 陈柏宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-12-05
Filing date: 2014-12-05
Publication date: 2017-11-14
Anticipated expiration: 2034-12-05
Also published as: CN105715195A

Abstract

A kind of curtain detent mechanism of curtain without stretching wire, mainly locating effect of the curtain during deploying and folding is controlled using two clutch units, clutch unit has a wheel shaft, two brake block, one castle wheel and two planetary gears, two brake block is connected to the periphery of wheel shaft spaced reciprocally, so that form a rolling groove between two brake block, castle wheel is sheathed on wheel shaft and with an inner ring teeth portion for surrounding two brake block, planetary gear in the rolling groove and bridle joint castle wheel inner ring teeth portion, planetary gear enable by the drive of the inner ring teeth portion of castle wheel and mutual clamping or is separated between brake block, thus, when planetary gear is connected in brake block, curtain will be unable to be driven and complete to position.

Description

The curtain detent mechanism of curtain without stretching wire

Technical field

The present invention is relevant with curtain without stretching wire, particularly relates to a kind of curtain detent mechanism of curtain without stretching wire.

Background technology

In general curtain can divide into dragline type and non-dragline type in structure, wherein, dragline type curtain mainly utilizes One drawstring drives the action that curtain is deployed or folded, and Non-pull-cord type curtain is then that drop-down is bestowed to underbeam using hand Or the strength above pushed away, curtain is reached expansion or the effect folded.

However, although Non-pull-cord type curtain can allow user easily to adjust the expansion of curtain or fold, tying Often curtain is caused easily to have the shape of automatic re-ascending after being fully deployed in default of good Position Design in structure configuration Condition, or occur the problem of automatic sagging after folding completely, it so can all cause puzzlement of the user in practical operation.

The content of the invention

It is an object of the invention to provide a kind of curtain detent mechanism of curtain without stretching wire, its simple in construction and locating effect It is good, to increase operational convenience.

To achieve the above object, curtain detent mechanism provided by the invention includes：One pedestal；Two wind spring wheels, rotatably Bridle joint is together located at the pedestal and each other on ground；One wind spring, connect the two wind springs wheel and be selectively wound in the wind spring wheel； Two bull wheels, it is rotatably arranged in the pedestal and respectively the wind spring wheel of bridle joint one；Two clutch units, the drawstring is adjacent to respectively Take turns and there is a wheel shaft, at least two brake block, a castle wheel respectively, and at least two planetary gears, the wheel shaft are fixed on the base Seat, two brake block are fixed on the pedestal and are connected to the periphery of the wheel shaft spaced reciprocally so that shape between two brake block Into a rolling groove, there is the castle wheel axis hole and one to be adjacent to the inner ring teeth portion of the axis hole, and the axis hole is rotationally sheathed on The wheel shaft, the inner ring teeth portion are surrounded on around two brake block, and respectively the planetary gear is rollably in the rolling groove And the inner ring teeth portion of the bridle joint castle wheel so that respectively the planetary gear can should with one by the drive of the inner ring teeth portion of the castle wheel Mutual clamping or separation between brake block；And two drawstrings, around the castle wheel and it is fixed on one respectively with its one end respectively The bull wheel.

Preferably, wherein, respectively the rolling groove is curved.

Preferably, wherein, respectively the curvature of one end of the rolling groove is more than the curvature of the respectively other end of the rolling groove so that each The both ends of the brake block form a braking parts and a carrier respectively, and the curvature of the braking parts is more than the curvature of the carrier, when When respectively the planetary gear is connected in the braking parts of the brake block, the castle wheel can not rotate, when respectively the planetary gear is connected to this The carrier of brake block, the castle wheel can be rotated freely.

Preferably, wherein, respectively the number of the brake block of the clutch unit is two, and two brake block is in centered on the wheel shaft It is oppositely arranged.

Preferably, wherein, respectively the number of the brake block of the clutch unit is three, and three brake block is in centered on the wheel shaft Angularly set so that the rolling groove is formed between adjacent two brake block.

Thus, when the planetary gear is connected in the inner ring teeth portion of the castle wheel, the castle wheel be able to not can rotate, and now should Curtain will be unable to be unfolded or fold and complete to position, should be from when the planetary gear departs from the inner ring teeth portion of the castle wheel Closing wheel can freely rotate, and now the curtain can be deployed.

Brief description of the drawings

Fig. 1 is the stereogram that the 1st embodiment of the invention coordinates curtain.

Fig. 2 is the three-dimensional exploded view of the 1st embodiment of the invention.

Fig. 3 is the overlooking surface sectional view of the clutch unit of the 1st embodiment of the invention.

Fig. 4 is the top view of the clutch unit of the present invention, the main braking parts for showing planetary gear and being connected in brake block.

Fig. 5 is analogous to Fig. 4, the main carrier for showing planetary gear and being connected to brake block.

Fig. 6 present invention coordinates the front view of curtain, the main deployed condition for showing curtain.

Fig. 7 is analogous to Fig. 6, the main collapse state for showing curtain.

Fig. 8 is the overlooking surface sectional view of the clutch unit of second embodiment of the invention.

Symbol description in accompanying drawing

10 curtain without stretching wire, 12 curtain detent mechanisms, 14 upper beams, 16 underbeams, 18 curtains, 20 pedestals, 22 top plates, 24 bottoms Plate, 30 wind spring wheels, 40 wind springs, 50 bull wheels, 60 clutch units, 61 wheel shafts, 62 brake block, 63 castle wheels, 64 planetary gears, 65 Rolling groove, 66 braking parts, 67 carriers, 68 axis holes, 69 inner ring teeth portion, 70 drawstrings.

Embodiment

Please mainly use, scheme with unification curtain without stretching wire 10 referring initially to Fig. 1 and Fig. 7, curtain detent mechanism 12 of the invention Shown in curtain without stretching wire 10 include a upper beam 14, a underbeam 16, an and curtain being located between upper and lower beam 14,16 18.Referring again to Fig. 2 and Fig. 3, curtain detent mechanism 12 of the invention include a pedestal 20, two wind spring wheels 30, a wind spring 40, Two bull wheels 50, two clutch units 60, and two drawstrings 70.

Pedestal 20 is installed in upper beam 14 and has a top plate 22 and a bottom plate 24.

Wind spring wheel 30 is rotatably arranged in pedestal 20 and bridle joint is together each other.

The both ends of wind spring 40 connect wind spring wheel 30 respectively so that the two wind springs wheel 30 can by wind spring 40 synchronous axial system.

Bull wheel 50 be rotatably arranged in pedestal 20 and respectively one wind spring wheel 30 of bridle joint so that bull wheel 50 can with its The synchronous axial system of wind spring wheel 30 of phase bridle joint.

Clutch unit 60 is adjacent to bull wheel 50 and with a wheel shaft 61, three brake block 62, a castle wheel 63, and three row Star gear 64.Wheel shaft 61 is fixed on the bottom plate 24 of pedestal 20；Three brake block 62 is fixed on the bottom plate 24 of pedestal 20 and with isogonism The mode of degree arrangement is connected to the outer peripheral edge of wheel shaft 61 so that an arc rolling groove 65 is formed between two neighboring brake block 62, Again as shown in Figures 4 and 5, the curvature of one end of arc rolling groove 65 is more than the curvature of the other end of arc rolling groove 65, due to What the both ends of each arc rolling groove 65 were abutted is different brake block 62, so the both ends of each brake block 62 can be with The curvature difference at the both ends of arc rolling groove 65 and form a braking parts 66 and a carrier 67 respectively, the curvature of braking parts 66 More than the curvature of carrier 67；There is castle wheel 63 axis hole 68 and one to be adjacent to the inner ring teeth portion 69 of axis hole 68, castle wheel 63 Wheel shaft 61 is sheathed on by axis hole 68, castle wheel 63 can allow inner ring teeth portion 69 to be surrounded on brake block 62 after wheel shaft 61 is sheathed on Around；Planetary gear 64 is in the rolling groove 65 and bridle joint is in the inner ring teeth portion 69 of castle wheel 63 so that planetary gear 64 can be Driven by the inner ring teeth portion 69 of castle wheel 63 in the rotation process of castle wheel 63 and rolled along rolling groove 65.

Drawstring 70 is surrounded on the circle of castle wheel 63 1 and is fixed on underbeam 16 and bull wheel 50 respectively with its both ends so that drawstring 70 can drive castle wheel 63 to be rotated together with bull wheel 50 by the pulling of underbeam 16.

When curtain 18 to be deployed, as shown in fig. 6, exerting a force the pulled down of underbeam 14 first, make drawstring 70 by underbeam 14 Stretched, can first drive castle wheel 63 to start to rotate with bull wheel 50 during drawstring 70 is stretched, in 63 turns of castle wheel In dynamic process, as shown in Figure 4, castle wheel 63 drives planetary gear 64 to be rolled along rolling groove 65 to system by inner ring teeth portion 69 Idling conditions can be presented in the carrier 67 of motion block 62, planetary gear 64 at this time so that castle wheel 63 can be drawn by drawstring 70 Move and freely rotate, on the other hand, during bull wheel 50 rotates the wind spring wheel 30 with its phase bridle joint can be driven to rotate, made Wind spring 40 is furled to another wind spring wheel 30 and the elastic-restoring force of accumulation itself from one of wind spring wheel 30.

The pulling force for bestowing underbeam 14, the meeting of wind spring wheel 30 now are discharged after appropriate location again once curtain 18 is expanded to Bull wheel 50 is driven to produce rotating backward slightly by the effect of the elastic-restoring force of wind spring 40, it is then anti-in bull wheel 50 To the drawstring 70 that sub-fraction can be wound during rotation, castle wheel 63 is pulled by drawstring 70 and produce slightly reverse Rotate, membership drives planetary gear 64 to be rolled along rolling groove 65 by inner ring teeth portion 69 during castle wheel 63 rotates backward Clamping is formed to the braking parts 66 of brake block 62, as shown in figure 5, consequently, it is possible to planetary gear 64 can stop operating immediately, Planetary gear 64 related can allow castle wheel 63 to stop operating after stopping operating, and at this time drawstring 70 can be by between castle wheel 63 Frictional resistance and between the elastic-restoring force of wind spring 40 present standing balance state, curtain 18 is maintained at expansion State.

When curtain 18 to be folded, underbeam 14 is up promoted as shown in fig. 7, exerting a force first, drawstring 70 is become loose State and reduce the frictional resistance between castle wheel 63, the elastic-restoring force of wind spring 40 at this time can be by user Thrust forces wind spring wheel 30 simultaneously to rotate backward, and bull wheel 50 can be driven to rotate again during wind spring wheel 30 rotates, made Bull wheel 50 furls to drawstring 70, discharges the thrust for bestowing underbeam 14 again when curtain 18 folds completely, makes drawstring 70 Again tightly around in castle wheel 63, at this time the elastic-restoring force of wind spring 40 with the frictional resistance between drawstring 70 and castle wheel 63 it Between the state of standing balance will be presented once again, curtain 18 is maintained at collapse state.

It should be added that, the present invention can have different changes in structure, as shown in figure 8, brake block 62 herein Number differ and be set to three, two can essentially be reduced to, in the case, brake block 62 is in a manner of relative to each other It is connected to the outer peripheral edge of wheel shaft 61 so that a rolling groove 65 can be formed between the both ends of two brake block 62 respectively, each One planetary gear 64 of configuration, thus, planetary gear 64 can be also driven when castle wheel 63 is driven by drawstring 70 in rolling groove 65 Rolled along rolling groove 65, make equally produce clutch effect between planetary gear 64 and brake block 62.

In summary, curtain detent mechanism 12 of the invention provides curtain 18 good positioning effect using clutch unit 60 Fruit, generally configured with simple structure, operational stability is also very good, thus can effectively solve curtain 18 Rise problem after deployment and the sagging problem when folding and reach increase operation ease purpose.

Claims

1. a kind of curtain detent mechanism of curtain without stretching wire, includes：

One pedestal；

Two wind spring wheels, are rotatably arranged in the pedestal and bridle joint is together each other；

One wind spring, connect the two wind springs wheel and be selectively wound in the wind spring wheel；

Two bull wheels, it is rotatably arranged in the pedestal and respectively the wind spring wheel of bridle joint one；

Two clutch units, the bull wheel is adjacent to respectively and there is a wheel shaft, at least two brake block, a castle wheel respectively, with And at least two planetary gears, the wheel shaft are fixed on the pedestal, two brake block is fixed on the pedestal and is connected to spaced reciprocally The periphery of the wheel shaft so that form a rolling groove between two brake block, there is the castle wheel axis hole and one to be adjacent to the axle The inner ring teeth portion in hole, the axis hole are rotationally sheathed on the wheel shaft, and the inner ring teeth portion is surrounded on around two brake block, respectively should Planetary gear rollably in the rolling groove and the bridle joint castle wheel inner ring teeth portion so that respectively the planetary gear can be by The drive of the inner ring teeth portion of the castle wheel and mutual clamping or separated between the brake block；And

Two drawstrings, the castle wheel is surround respectively and the bull wheel is fixed on its one end respectively.

2. the curtain detent mechanism of curtain without stretching wire according to claim 1, wherein, respectively the rolling groove is curved.

3. the curtain detent mechanism of curtain without stretching wire according to claim 2, wherein, respectively the curvature of one end of the rolling groove is big In the curvature of the other end of the respectively rolling groove so that respectively the both ends of the brake block form a braking parts and a carrier respectively, should The curvature of braking parts is more than the curvature of the carrier, when respectively the planetary gear is connected in the braking parts of the brake block, the clutch Wheel can not be rotated, and when respectively the planetary gear is connected to the carrier of the brake block, the castle wheel can be rotated freely.

4. the curtain detent mechanism of curtain without stretching wire according to claim 3, wherein, each number of the brake block of the clutch unit Mesh is two, and two brake block is in be oppositely arranged centered on the wheel shaft.

5. the curtain detent mechanism of curtain without stretching wire according to claim 3, wherein, each number of the brake block of the clutch unit Mesh is three, and three brake block is in angularly to set centered on the wheel shaft so that the rolling is formed between adjacent two brake block Dynamic groove.