TWM632133U - Venetian blinds - Google Patents

Abstract

This creation relates to a venetian blind, which includes a first beam and a second beam, a plurality of blades are arranged between the first beam and the second beam, and a steering mechanism is arranged in the first beam. The ladder rope includes a first warp thread and a second warp thread, the first warp thread has a plurality of first positions, and the second warp wire has a plurality of second positions and a plurality of third positions arranged staggeredly. Two ends of each support are respectively connected to each first position and each second position, each blade is respectively supported against each support, and each constraining ring is respectively connected to each third position, and includes adjacent first and second constraining rings . Wherein, the side of the blade close to the second meridian is provided with a through hole, and one of the first and second confinement rings passes through the through hole to form a loop, and the loop is then replaced by the first or second confinement ring that does not pass through the through hole. The second confinement ring is passed through so that the through hole remains penetrated by at least one of the first and second confinement rings.

Description

Venetian blinds

This creation is about a venetian blind, especially a venetian blind that can prevent the blades from being pulled out and the blades are closed well.

Most common venetian blinds have upper beams, lower beams and multiple blades. The upper beam can be fixed to the window frame or wall to hang the blades and lower beam. The venetian blind also includes a ladder rope and a steering mechanism. The ladder rope has a front warp thread and a back warp thread, and a plurality of weft threads are arranged between the front warp thread and the back warp thread at intervals, so that the ladder rope is in a ladder shape as a whole. The steering mechanism is arranged on the upper beam, and the upper ends of the front and rear meridians of the aforementioned ladder ropes are connected to the steering mechanism, so that the ladder ropes are suspended below the upper beam. A plurality of blades are respectively inserted in each ladder, and are supported by the weft. The steering mechanism can rewind or release the front warp, and simultaneously release or rewind the rear warp in the opposite direction, thereby inclining the blades, thereby regulating the amount of light passing through the gaps between the blades.

However, the blades are only passed through the ladder ropes, and the ladders can only support the blades without the function of restricting the displacement of the blades, so that the blades can be easily pulled out from the ladders. Furthermore, since the ladder ropes are mostly composed of soft ropes, and most of the weft lines are slightly larger than the width of the short-axis direction of the blade, when the blade is inclined, especially when the blade is in an almost vertical closed state, a downward slope of the blade will occur. The side is prone to slide down, but the sliding distances of each blade are often inconsistent, resulting in different relative positions of each blade in the corresponding ladder. In addition to causing clutter in appearance, It will also cause light leakage between the leaves and the leaves, which will affect the effect of shading or protecting privacy.

In view of the above-mentioned conventional problems, one of the objectives of the present invention is to provide a venetian blind to solve the problems of easy lateral displacement of the blades of the existing venetian blinds and easy light leakage when the blades are closed.

According to the purpose of this creation, a venetian blind is proposed, which includes a first beam, a second beam, a plurality of blades, a steering mechanism and a ladder rope. The second beam is located below the first beam, the plurality of blades are located between the first beam and the second beam, and the steering mechanism is arranged on the first beam. The ladder rope includes a first warp thread, a second warp thread, a plurality of supports and a plurality of restraint rings. The first warp has a plurality of first positions, and the spacing between the first positions is a predetermined distance. The second meridian and the first meridian are arranged at intervals and substantially parallel to each other, the second meridian has a plurality of second positions and a plurality of third positions, the spacing between the second positions is the aforementioned predetermined distance, and each The second positions are respectively disposed corresponding to the first positions, the spacing between the third positions is the aforementioned predetermined distance, and the second positions and the third positions are staggered. A plurality of supports are arranged between the first warp and the second warp, one end of each support is respectively connected to each first position of the first warp, and the other end of each support is correspondingly connected to the second warp. each second position of the line. The plurality of confinement rings are respectively connected to the respective third positions of the second meridian, and the plurality of confinement rings include a first confinement ring and a second confinement ring adjacent to each other. The first end of the first warp and the first end of the second warp are respectively connected to the steering mechanism in the first beam, so that the ladder rope is suspended below the first beam, and the second end of the first warp and the The second ends of the two meridians are respectively connected to the second beams. Each blade is arranged between the first meridian and the second meridian space, and correspondingly bear on each support. The steering mechanism connects the first meridian and the second meridian to drive the first meridian and the second meridian to move in opposite directions, so that the plurality of supports change the angle with the up and down dislocation of the first meridian and the second meridian , and at the same time drive a plurality of blades to change the angle. Wherein, a through hole is formed on the side of at least one blade adjacent to the second meridian, and one of the first confinement ring and the second confinement ring passes through the through hole to form a loop, and the loop is not passed through the through hole. The first confinement ring or the second confinement ring is passed through, so that the through hole remains penetrated by at least one of the first confinement ring and the second confinement ring.

In one embodiment, the perimeter of each of the aforementioned confinement rings is greater than twice the aforementioned predetermined distance.

In one embodiment, the aforementioned plurality of confinement rings are integrally formed with the second warp system.

Another embodiment of the venetian blind further comprises an anchoring member fastened to the second beam, and the aforementioned first meridian and the second meridian are connected to the second beam through the anchoring member.

In one embodiment, the aforementioned plurality of blades include a first blade and a second blade, the first blade is closer to the first beam than the second blade, and the first blade and the second blade are adjacent to one side of the second meridian, respectively. With through holes. The aforementioned plurality of confinement rings include a first confinement ring and a second confinement ring, and on the second meridian, the third position connecting the first confinement ring is closer to the first beam than the third position connecting the second confinement ring . Wherein, the first confinement ring passes through the through hole of the first blade, so that the first confinement ring forms a first ring between the first blade and the second blade, and after the second confinement ring passes through the first ring, Passing through the through hole of the second blade to restrict the first confinement ring from passing through the through hole of the first blade.

In one embodiment, the aforementioned plurality of support members include a first support member and a second support member, the first support member is closer to the first beam than the second support member, and the first blade is supported against the first beam. A support, the aforesaid second blade bears against the second support, and on the second meridian, the third position connecting the first confinement ring is closer to the first beam than the second position connecting the first support.

In one embodiment, the aforementioned plurality of blades include a last blade, which is the blade closest to the second beam among the plurality of blades, and a side of the last blade adjacent to the second meridian is provided with a through hole. The aforementioned plurality of confinement rings include a last confinement ring and a fixed confinement ring, and on the second meridian, the third position connecting the fixed confinement ring is closer to the second beam than the third position connecting the last confinement ring. After the last confinement ring passes through the through hole of the last blade, a final ring is formed between the last blade and the second beam, and the fixed confinement ring passes through the last ring and is connected to the aforementioned second beam to constrain the last restraint ring Pass through the through hole of the last blade.

In one embodiment, the plurality of blades include a first blade and a second blade, the first blade is closer to the first beam than the second blade, and the plurality of supports include a first support and a first Two supports, the first support is closer to the first beam than the second support, the first blade is supported against the first support, and the second blade is supported against the second support. The aforementioned plurality of confinement rings include a first confinement ring and a second confinement ring, and on the second meridian, the third position connecting the first confinement ring is closer to the first beam than the third position connecting the second confinement ring, and The third location where the first confinement ring is connected is closer to the first beam than the second location where the first support is connected. Wherein, the first blade and the second blade are respectively provided with through holes on one side adjacent to the second meridian, and the second confinement ring passes through the through holes of the first blade to form a second blade between the first blade and the first beam The first confinement ring is fixed on the second warp after passing through the second loop, so as to restrict the second confinement ring from passing through the through hole of the first blade.

Another embodiment of the venetian blind further includes a lifting mechanism, a pulling rope and a plurality of positioning rings, each positioning ring is connected to at least one of the first warp and the second warp at intervals, and the lifting mechanism is arranged on the At least one of the first beam and the second beam, a first end of the pull rope is connected to the lifting mechanism, and the lifting mechanism is used to release or retract the pull rope with the change of the distance between the first beam and the second beam . A second end of the pull rope extends to the other one of the first beam and the second beam, and the pull rope passes through at least one positioning loop among the plurality of positioning loops.

In one embodiment, the perimeter of each of the aforementioned positioning rings is smaller than the perimeter of the confinement ring.

In one embodiment, the aforementioned lifting mechanism is disposed on the first beam, and the second end of the pulling rope is connected to the second beam.

In another embodiment, the aforementioned lifting mechanism is disposed on the second beam, and the second end of the pulling rope is connected to the steering mechanism in the first beam.

Continuing from the above, the Venetian blinds created according to the present invention may have one or more of the following advantages:

(1) By setting a plurality of restraint rings corresponding to the blades on the ladder rope, passing through the through holes of the blades through the restraint rings, and then hooking the adjacent restraint rings, so that the rings are hooked in sequence, it can prevent Each constraining ring comes out of the through hole of each blade, thereby restricting the lateral movement of the blade, so as to prevent the blade from being pulled out from the ladder rope.

(2) In addition, the configuration of the constraining ring can limit the sliding distance of the blades when the blades are inclined and closed, and ensure that the width of the overlapping blades is consistent, so that the blades can be closed well and avoid the phenomenon of light leakage.

(3) Further, by the configuration of the positioning ring, the position of the lifting rope of the venetian blind can be limited, so that it is close to the warp of the ladder rope to present a sense of unity, reducing the appearance of the venetian blind. There are too many ropes and the visual effect is cluttered. At the same time, in the process of retracting the lower beam, the positioning ring does not affect the up and down movement of the lifting cable, but when the lifting cable is pulled in the horizontal direction, the positioning ring will provide resistance to the lifting cable, so that the lifting cable is not easily pulled. out without forming a rope loop, improving the safety of the Venetian blinds.

100: Venetian blinds

10: The first beam

20: Curtain body

21: The first blade

22: Second blade

23: Third Blade

2n: last blade

21O, 22O, 23O, 2nO: through hole

30: Second beam

30O: Positioning hole

32: Anchors

40: Steering mechanism

42: The first drum

44: Second drum

46: Steering Module

48: Axle

462: Joystick

50: Ladder rope

52: First warp

P11, P12, P13, P1n: first position

54: Second warp

P21, P22, P23, P2n: Second position

P31, P32, P33, P3n, P3n+1: third position

561: First support

562: Second support

563: Third Support

56n: Final support

581: First Constraint Ring

581’: first ring

582: Second Constraint Ring

582’: Second Ring

583: Third Constraint Ring

583’: Third Ring

58n: Final Constraint Ring

58n’: last loop

58n+1: Fixed confinement ring

D: predetermined distance

200: Venetian blinds

10: The first beam

20: Curtain body

21: The first blade

22: Second blade

23: Third Blade

2n: last blade

21O, 22O, 23O, 2nO: through hole

30: Second beam

30O: Positioning hole

32: Anchors

40: Steering mechanism

42: The first drum

44: Second drum

46: Steering Module

48: Axle

60: Ladder rope

62: First warp

P11, P12, P13, P1n: first position

64: Second warp

P21, P22, P23, P2n: Second position

P31, P32, P33, P3n, P3n+1: third position

661: First support

662: Second support

663: Third Support

66n: Final support

681: First Constraint Ring

681’: first ring

682: Second Constraint Ring

682’: Second Ring

683: Third Constraint Ring

683’: Third Ring

68n: Final Constraint Ring

68n': last loop

68n+1: Fixed confinement ring

D: predetermined distance

82: First drawstring

84: Second drawstring

90: Lifting mechanism

92: Drive Wheel

94: Spring storage wheel

96: Spring

981: reel

982: Reel

200’: Venetian blinds

10: The first beam

20: Curtain body

21: The first blade

22: Second blade

23: Third Blade

2n: last blade

21O, 22O: through hole

30: Second beam

40’: Steering mechanism

42': first drum

44': Second drum

46': Steering Module

48': Axle

462’: Joystick

60: Ladder rope

62: First warp

64: Second warp

661: First support

662: Second support

681: First Constraint Ring

681’: first ring

682: Second Constraint Ring

682’: Second Ring

70: The first positioning ring

72: Second positioning ring

82: First drawstring

84: Second drawstring

90’: Lifting mechanism

92': drive wheel

94': spring storage wheel

96': spring

981’: reel

982': reel

FIG. 1 is a perspective view of the Venetian blind in the first embodiment of the present invention in a fully unfolded state and the blind body in a light-transmitting state.

FIG. 2 is a partial perspective view of the blind of FIG. 1 .

FIG. 3 is a schematic diagram of the ladder rope of the Venetian blind according to the first embodiment of the present invention.

FIG. 4 is a left side view of the venetian blind of FIG. 1 .

FIG. 5 is a partial enlarged view of the venetian blind of FIG. 4 with the first beam and the steering module removed.

FIG. 6 is a partial enlarged perspective view of the lower left side of the Venetian blind according to the first embodiment of the present invention.

FIG. 7 is an exploded view of the anchor of FIG. 6 separated from the second beam.

FIG. 8 is a perspective view of the venetian blind in the first embodiment of the present invention in a fully unfolded state and the blind body in a closed state.

FIG. 9 is a left side view of FIG. 8 .

FIG. 10 is a partial enlarged view of FIG. 9 .

FIG. 11 is a perspective view of the Venetian blind of the second embodiment of the present invention in a fully unfolded state and the blind body in a light-transmitting state.

FIG. 12 is a perspective view of the blind of FIG. 11 from another perspective.

FIG. 13 is a schematic diagram of the ladder rope of the Venetian blind according to the second embodiment of the present invention.

FIG. 14 is a partial perspective view of the venetian blind of FIG. 11 .

FIG. 15 is a left side view of the blind of FIG. 11 .

FIG. 16 is a partial enlarged view of the venetian blind of FIG. 14 with the first beam and the steering module removed.

FIG. 17 is a partially enlarged perspective view of the lower left side of the Venetian blind according to the second embodiment of the present invention.

18 is an exploded view of the anchor of FIG. 17 separated from the second beam.

FIG. 19 is a perspective view of the Venetian blind according to the second embodiment of the present invention in a fully folded state.

FIG. 20 is a perspective view of the Venetian blind of the second embodiment of the present invention in a fully unfolded state and the blind body in a closed state.

FIG. 21 is a left side view of FIG. 20 .

FIG. 22 is a partial enlarged view of FIG. 21 .

Fig. 23 is a partial perspective perspective view of the venetian blind of the third embodiment of the present invention in a fully unfolded state and the blind body in a light-transmitting state.

FIG. 24 is a perspective view of the venetian blind of FIG. 23 with the first beam and the second beam removed.

FIG. 25 is a partial perspective view of the venetian blind of FIG. 24 .

FIG. 26 is a partial perspective perspective view of the blind body of the Venetian blind according to the third embodiment of the present invention in a completely closed state.

FIG. 27 is a top view of FIG. 26 .

Please refer to Fig. 1, Fig. 2 and Fig. 4, which are respectively the first real examples of the Venetian blinds of the present creation. Perspective, partial perspective and left side view of the embodiment. A venetian blind 100 is disclosed in the figure, including a first beam 10, a curtain body 20, a second beam 30, a steering mechanism 40 and a ladder rope 50. The first beam 10 can be fixed on a window frame or a wall for hanging the curtain body 20 and the second beam 30. The curtain body 20 includes a plurality of blades. In this embodiment, the blades are defined as the first blade 21 , the second blade 22 , the third blade 23 . . . and the last blade 2n in order from top to bottom. The first blade 21 is closest to the first beam 10 and the last blade 2n is closest to the second beam 30 . The first beam 10 has a cavity, and the steering mechanism 40 is disposed in the cavity of the first beam 10 , wherein the steering mechanism 40 includes a first drum 42 , a second drum 44 , a steering module 46 and a shaft rod 48 , As shown in FIG. 1 and FIG. 2 , the first rotating drum 42 and the second rotating drum 44 are respectively disposed on the left and right sides of the first beam 10 , the steering module 46 is disposed on the left side of the first rotating drum 42 , and the shaft rod 48 is Passing through the steering module 46 , the first drum 42 and the second drum 44 , the steering module 46 can drive the first drum 42 and the second drum 44 to rotate synchronously through the shaft 48 . In this embodiment, the number of the ladder ropes 50 is two, and the upper ends of the ladder ropes 50 are respectively connected to the first rotating drum 42 and the second rotating drum 44 , so that the ladder ropes 50 are suspended below the first beam 10 .

Please refer to FIG. 1 to FIG. 7 together to further describe the structure and configuration of the ladder rope 50 in this embodiment. The venetian blind 100 of this embodiment has two ladder ropes 50, each of which has the same structure. Taking the ladder rope 50 on the left side of FIG. 1 as an example, as shown in FIG. 1, FIG. 3 to FIG. 5, the ladder rope 50 has a first Warp 52, second warp 54, a plurality of supports and a plurality of confinement rings. The first end of the first warp 52 and the first end of the second warp 54 are respectively connected to the first drum 42, and the first warp 52 and the second warp 54 are substantially parallel (eg, close to the first beam) 10 and/or the first warp 52 and the second warp 54 of the second beam 30 may be in a non-parallel state), the first warp 52 passes through the front side of the curtain body 20, and the second warp 54 passes through the curtain body 20. On the rear side, a plurality of supports are arranged between the first warp 52 and the second warp 54 at intervals. the first A warp 52 defines a plurality of first positions, which are the first positions P11 , P12 , P13 . . . P1n in order from top to bottom. A plurality of second positions are defined on the second meridian 54 , which are the second positions P21 , P22 , P23 . . . P2n in order from top to bottom. The aforementioned plurality of support members are defined as the first support member 561 , the second support member 562 , the third support member 563 . . . and the last support member 56n in order from top to bottom. The two ends of the second support member 562 are respectively disposed at the first position P11 and the second position P21, the two ends of the second support member 562 are respectively disposed at the first position P12 and the second position P22, and the two ends of the third support member 563 are respectively disposed at the first position P13 and The second position P23, and so on, finally the two ends of the support member 56n are respectively set at the first position P1n and the second position P2n. The first blade 21 bears against the first support member 561, the second blade 22 bears against the second support member 562, the third blade 23 bears against the third support member 563, and so on, the last blade 2n bears against the last Support 56n. As shown in FIG. 5 , the first positions are separated by a predetermined distance D, and the second positions are also separated by a predetermined distance D. When the first position P11 of the first meridian 52 and the second position of the second meridian 54 When the P21 is aligned, the remaining first positions and the second positions are also aligned respectively, so that the supports 561-56n are in a horizontal state, and the blades 21-2n resting on them are also in a horizontal state.

In this embodiment, a plurality of third positions are also defined on the second meridian 54, which are the third positions P31, P32, P33...P3n, P3n+1 in order from top to bottom. They are also separated by a predetermined distance D, and the third position P31 is closer to the first beam 10 than the second position P21, and the third position P3n+1 is closer to the second beam 30 than the second position P2n. In other words, the third positions P31 ˜ P3n+1 and the second positions P21 ˜ P2n defined in this embodiment are staggered, and the number of the third positions is greater than the number of the second positions. In this embodiment, each of the plurality of confinement rings is approximately folded in half by a string, and each confinement ring is connected to each of the third positions correspondingly. These constraint rings are defined top-to-bottom The sequence is the first confinement ring 581, the second confinement ring 582, the third confinement ring 583..., the last confinement ring 58n, and the fixed confinement ring 58n+1. The first confinement ring 581 is connected to the third position P31, the second confinement ring 582 is connected to the third position P32, the third confinement ring 583 is connected to the third position P33, and so on, and finally the confinement ring 58n is connected to the third position P3n , and the fixed confinement ring 58n+1 is connected to the third position P3n+1.

As shown in FIGS. 5 to 7 , the side of the first blade 21 close to the second meridian 54 has a through hole 21O, the side of the second blade 22 close to the second meridian 54 has a through hole 22O, and the third blade 23 close to the second meridian 54 has a through hole 22O. One side of the second meridian 54 has a through hole 23O, and so on, and finally a side of the blade 2n close to the second meridian 54 has a through hole 2nO. After the first confinement ring 581 passes through the through hole 210 of the first blade 21, a first ring 581' is formed between the first blade 21 and the second blade 22, and the second confinement ring 582 passes through the first ring 581' Afterwards, the through hole 22O of the second blade 22 is passed through, and a second ring 582 ′ is formed between the second blade 22 and the third blade 23 . After the third confinement ring 583 passes through the second ring 582', it passes through the through hole 23O of the third blade 23, and forms a third ring 583' under the third blade 23. By analogy, the confinement ring located above the blade first passes through the ring formed by the previous confinement ring, then passes through the through hole of the lower blade, and forms another ring under the blade, and the next confinement ring passes through The rings located under the blades are nested together by the rings, so that the through holes of each blade are passed through by at least one confinement ring, and are restricted to the vicinity of each confinement ring, and even if the corresponding confinement ring is removed from the through hole When pulling out in the reverse direction, the constraining rings in the same set will also be pulled through the through holes at the same time, and continue to limit the position of the through holes of the blades, so that each blade will not move laterally greatly. Until the last confinement ring 58n passes through the through hole 2nO of the last blade 2n and forms the last ring 58n' between the last blade 2n and the second beam 30. Finally, as shown in FIG. 6 and FIG. 7 , after passing through the last ring 58n' by the fixed confinement ring 58n+1, it extends toward the direction of the second beam 30, and is connected with the second beam 30. The second end of the warp 52 and the second end of the second warp 54 are inserted into the positioning hole 30O on the side of the second beam 30, and then an anchor 32 is plugged and fixed in the positioning hole 300 to constrain the fixation. The loop 58n+1 , the second end of the first meridian 52 and the second end of the second meridian 54 are fixedly connected to the second beam 30 . In another embodiment, the confinement rings 581 to 58n+1 can also be set in reverse order from bottom to top. For example, the fixed confinement ring 58n+1 passes upward through the through hole 2n0 of the last blade 2n, and the last confinement ring After passing through the ring formed by the fixed confinement ring 58n+1, 58n passes through the through hole of the previous blade, and so on. Finally, the second confinement ring 582 will pass through the through hole 210 of the first blade 21 and form In the second loop 582 ′, the first confinement loop 581 passes through the second loop 582 ′, and then the free end of the first confinement loop 581 is fixed on the second warp 54 . In this way, it can also be ensured that the through holes 210 to 2nO of the blades 21 to 2n pass through at least one confinement ring, so that the blades 21 to 2n will not be moved laterally greatly.

In this embodiment, each ladder rope 50 corresponds to a positioning hole 30O disposed on the bottom surface of the second beam 30, but it is not limited to this, and the positioning hole 30O can also be disposed on other surfaces of the second beam 30 depending on the design. Or set a plurality of positioning holes to correspond to different components of the ladder rope 50, for example, the first meridian, the second meridian and the fixed confinement ring correspond to different positioning holes, but only the fixed confinement ring 58n+1, the first The second end of the warp 52 and the second end of the second warp 54 are fixedly connected to the second beam 30 to prevent the fixed restraint ring 58n+1 from loosening, or to prevent the second beam 30 from separating from the ladder rope 50 . With this arrangement, the blades 21 to 2n are restricted by the confinement rings 581 to 58n, respectively, and cannot move laterally greatly. In addition, in this embodiment, the first warp 52, the second warp 54, the support members 561-56n and the restraining rings 581-58n+1 of the ladder rope 50 are integrally formed during the weaving process. In another embodiment, the support members 561 to 56n and the confinement rings 581 to 58n+1 can also be independently formed rings, and are respectively combined with the first warp thread 52 and the second warp thread 54, for example, by sewing Or bonding, etc., so that the support members 561~56n and about The loops 581 to 58n are fixed on the first warp 52 and the second warp 54 and do not move relative to the first warp 52 and the second warp 54 . In addition, in this embodiment, each restraint ring is a loop formed by folding a rope segment in half, but it is not limited to this, and each restraint ring can also be composed of a complete rope Connected to the second meridian 54 . Each restraint ring needs to pass through the ring formed by the previous restraint ring and the length required by the through hole of the blade below itself, so that the total length of the rope segments constituting each restraint ring, that is, the perimeter of each restraint ring, must be at least greater than twice the predetermined distance D. Furthermore, in this embodiment, the second warp 54 passes through the rear side of the curtain body 20, but is not limited to this. The positions of the second warp 54 and the first warp 52 can also be reversed. Or the blades 21 to 2n are provided with through holes adjacent to the first meridian 52 and the second meridian 54, then the first meridian 52 and the second meridian 54 can be provided with through holes corresponding to the blades of the confinement ring at the same time. .

Please refer to the venetian blind 100 shown in FIGS. 1 to 5 , it is revealed that the second beam 30 is located at the farthest position from the first beam 10 , which is defined as a fully unfolded state herein. When the blind 100 is fully deployed, the first meridian 52 and the second meridian 54 between the first beam 10 and the second beam 30 extend substantially parallel to and perpendicular to each other, respectively. Please refer to FIG. 4 and FIG. 5 , which reveal that the first positions P11 to P1n on the first meridian 52 and the second positions P21 to P2n on the second meridian 54 are opposite to each other at the same height, so that the support members 561 ~56n are arranged at horizontal intervals, and the blades 21~2n which are supported on them are also arranged at horizontal intervals, which are defined as light-transmitting states here.

Referring to FIGS. 2 , 8 to 10 , in this embodiment, the steering module 46 further includes an operating rod 462 exposed on the first beam 10 for the user to drive the steering module 46 . When the user wants to change the light transmittance of the venetian blind 100 , he can rotate the operating lever 462 to drive the steering module 46 to drive the shaft 48 to rotate, and the rotation of the shaft 48 will drive the first drum 42 and the first rotating drum 42 The two drums 44 rotate synchronously and in the same direction, which together make the ladder ropes 50 connected to the first drum 42 and the second drum 44 change their shape. state. As shown in FIGS. 8 to 10 , taking the ladder rope 50 on the left side of FIG. 2 as an example, when the user rotates the operating lever 462 to drive the shaft 48 to rotate clockwise, the first drum 42 releases the first portion of the warp 52, and synchronously winds up portions of second warp 54 such that the length of first warp 52 increases and the length of second warp 54 decreases between first beam 10 and second beam 30, thereby The support members 561~56n between the first meridian 52 and the second meridian 54 are inclined to be low in front and high in the back (in terms of the angle of the user facing the venetian blind 100), and drive the blades 21~56n thereon. 2n Sync Tilt. As shown in the partial side view of FIG. 10 , the first ring 581 ′ abuts against the bottom of the first blade 21 , and the second constraining ring 582 faces along the bottom surface of the first blade 21 after passing through the first ring 581 ′ The second vane 22 extends through the through hole 22O of the vane 22 and through the section of the second confinement ring 582 of the through hole 22O compared to the area of the second confinement ring 582 extending along the second vane 22 The segment is in a bent state, and has a positioning effect on the second blade 22 to prevent the second blade 22 from sliding down. By analogy, all the blades 21 to 21n are positioned by bending and passing through the corresponding confinement rings 581 to 58n respectively, so that the blades 21 to 2n are in a state in which the overlapping ranges are approximately equal to each other as shown in FIG. 9 . There is no gap to form a closed state, which can effectively block light and protect privacy. The operation principle and configuration of adjusting the light transmittance of the curtain body 20 between the light transmittance state and the light block state by the steering mechanism 40 is a conventional technique in the art, and will not be described in detail here.

Please refer to FIG. 11 to FIG. 15 , which are a three-dimensional view, a partial perspective view, a left side view and a schematic diagram of a ladder rope from different perspectives of the second embodiment of the Venetian blind of the present invention, respectively. The venetian blind 200 of the second embodiment, similar to the venetian blind 100 of the previous embodiment, has a first beam 10, a curtain body 20, a second beam 30, a steering mechanism 40, a ladder rope 60, a first pull rope 82, a Two pull ropes 84 and a lifting mechanism 90 . The first beam 10 can be fixed on the window frame or the wall for suspending the curtain body 20 and the second beam 30 . Curtain body 20 Including a plurality of blades, in this embodiment, these blades are defined as the first blade 21, the second blade 22, the third blade 23... and the last blade 2n, the first blade in sequence from top to bottom 21 is closest to the first beam 10 and the last blade 2n is closest to the second beam 30 . The first beam 10 has a cavity, and the steering mechanism 40 is disposed in the cavity of the first beam 10 , wherein the steering mechanism 40 includes a first drum 42 , a second drum 44 , a steering module 46 and a shaft rod 48 , As shown in FIGS. 11 to 14 , the first drum 42 and the second drum 44 are respectively arranged on the left and right sides of the first beam 10 , the steering module 46 is arranged on the left side of the first drum 42 , and the shaft 48 is Passing through the steering module 46 , the first drum 42 and the second drum 44 , the steering module 46 can drive the first drum 42 and the second drum 44 to rotate synchronously through the shaft 48 . In this embodiment, the number of the ladder ropes 60 is two, and the upper ends of the ladder ropes 60 are respectively connected to the first rotating drum 42 and the second rotating drum 44 , so that the ladder ropes 60 are suspended below the first beam 10 .

The venetian blind 200 of the present embodiment includes two sets of first pull cords 82 and second pull cords 84 , wherein a set of first pull cords 82 and second pull cords 84 are arranged on the left side of the first beam 10 and are connected with the ladder on the left side. The ropes 60 are adjacent to each other, and another set of the first pull rope 82 and the second pull rope 84 is arranged on the right side of the first beam 10 and adjacent to the ladder rope 60 on the right side. As shown in FIGS. 11 to 14 , in the cavity of the first beam 10 , the lifting mechanism 90 is disposed between the first rotating drum 42 and the second rotating drum 44 . The lifting mechanism 90 includes a driving wheel 92 , a spring storage wheel 94 , a spring 96 , a winding wheel 981 , and a winding wheel 982 . One end of the spring 96 is connected to the driving wheel 92 , and the other end is wound around the spring storage wheel 94 , and can be wound on the driving wheel 92 or released from the driving wheel 92 according to the rotation direction of the driving wheel 92 . On spring storage wheel 94. As shown in FIG. 14 , in this embodiment, the number of reels is two, wherein the reel 981 is disposed to the left and adjacent to the driving wheel 92 and closer to the first drum 42 . The other reel 982 is disposed to the right, farther away from the driving wheel 92, and closer to the second drum 44, and the driving wheel 92 and the reel 981, 982 can be connected to each other through gears. This linkage. In this embodiment, the first end of the first pull rope 82 on the left and the first end of the second pull rope 84 are respectively connected to the left reel 981, and the first end of the first pull rope 82 on the right and the first ends of the second pulling rope 84 are respectively connected to the right reel 982. When the reeling reels 981 and 982 rotate, the two sets of the first pulling rope 82 and the second pulling rope 84 can be synchronized according to the different rotation directions. The ground is wound up or released by the reels 981 and 982 .

Please refer to FIG. 11 to FIG. 18 together to further describe the structure and configuration of the ladder rope 60 in this embodiment. The venetian blind 200 of this embodiment has two ladder ropes 60 , each of which has the same structure. Taking the ladder rope 60 on the left side of FIG. 11 as an example, as shown in FIGS. 11 to 16 , the ladder rope 60 has a first warp 62 , a second warp 64 , a plurality of supports, a plurality of confinement rings, a plurality of first positioning rings 70 and a plurality of second positioning rings 72 . The first end of the first warp 62 and the first end of the second warp 64 are respectively connected to the first drum 42, and the first warp 62 and the second warp 64 are substantially parallel (eg, close to the first beam) 10 and/or the first warp 62 and the second warp 64 of the second beam 30 may be in a non-parallel state), the first warp 62 passes through the front side of the curtain body 20, and the second warp 64 passes through the curtain body 20. On the rear side, a plurality of supports are disposed between the first warp 62 and the second warp 64 at intervals. A plurality of first positions are defined on the first meridian 62 , which are the first positions P11 , P12 , P13 . . . P1n in order from top to bottom. A plurality of second positions are defined on the second meridian 64 , which are the second positions P21 , P22 , P23 . . . P2n in order from top to bottom. The aforementioned plurality of support members are defined as the first support member 661 , the second support member 662 , the third support member 663 . . . and the last support member 66n in order from top to bottom. The two ends of the second support member 662 are respectively disposed at the first position P11 and the second position P21, the two ends of the second support member 662 are respectively disposed at the first position P12 and the second position P22, and the two ends of the third support member 663 are respectively disposed at the first position P13 and The second position P23, and so on, the two ends of the last support member 66n are respectively set at the first position P1n and the second position Location P2n. The first blade 21 bears against the first support 661, the second blade 22 bears against the second support 662, the third blade 23 bears against the third support 663, and so on, the last blade 2n bears against the last Support 66n. As shown in FIG. 16 , the first positions are separated by a predetermined distance D, and the second positions are also separated by a predetermined distance D. When the first position P11 of the first meridian 62 and the second position of the second meridian 64 When the P21 is aligned, the remaining first positions and the second positions are also aligned respectively, so that the supports 661-66n are in a horizontal state, and the blades 21-2n resting on them are also in a horizontal state.

In this embodiment, a plurality of third positions are also defined on the second meridian 64, which are the third positions P31, P32, P33...P3n, P3n+1 in order from top to bottom. They are also separated by a predetermined distance D, and the third position P31 is closer to the first beam 10 than the second position P21, and the third position P3n+1 is closer to the second beam 30 than the second position P2n. In other words, the third positions P31 ˜ P3n+1 and the second positions P21 ˜ P2n defined in this embodiment are staggered, and the number of the third positions is greater than the number of the second positions. In this embodiment, each of the plurality of confinement rings is approximately folded in half by a string, and each confinement ring is connected to each of the third positions correspondingly. These confinement rings are defined as the first confinement ring 681 , the second confinement ring 682 , the third confinement ring 683 . . . , the last confinement ring 68n and the fixed confinement ring 68n+1 from top to bottom. The first confinement ring 681 is connected to the third position P31, the second confinement ring 682 is connected to the third position P32, the third confinement ring 683 is connected to the third position P33, and so on, and finally the confinement ring 68n is connected to the third position P3n , while the fixed confinement ring 68n+1 is connected to the third position P3n+1. In addition, each of the first positioning rings 70 is arranged on the first warp 62 at a distance from each other, and each of the second positioning rings 72 is arranged on the second warp 64 at a distance from each other.

As shown in FIGS. 15 to 18 , the side of the first blade 21 close to the second meridian 64 has Through holes 21O, the second blade 22 has through holes 22O on the side close to the second meridian 64, the third blade 23 has through holes 23O on the side close to the second meridian 64, and so on, and finally the blade 2n is close to the second meridian 64. One side of the warp 64 has a through hole 2nO. After the first confinement ring 681 passes through the through hole 210 of the first blade 21, a first ring 681' is formed between the first blade 21 and the second blade 22, and the second confinement ring 682 passes through the first ring 681' Afterwards, the through hole 22O of the second blade 22 is passed through, and a second ring 682 ′ is formed between the second blade 22 and the third blade 23 . After the third confinement ring 683 passes through the second ring 682', it passes through the through hole 23O of the third blade 23, and forms a third ring 683' under the third blade 23. By analogy, the confinement ring located above the blade first passes through the ring formed by the previous confinement ring, then passes through the through hole of the lower blade, and forms another ring under the blade, and the next confinement ring passes through The rings located under the blades are nested together by the rings, so that the through holes of each blade are passed through by at least one confinement ring and are restricted near each confinement ring, and even if the corresponding confinement ring is reversed from the through hole When pulling out, the constraining rings in the same set will also be pulled through the through hole at the same time, and continue to limit the position of the through hole of the blade, so that each blade will not move laterally greatly. Until the last confinement ring 68n passes through the through hole 2nO of the last blade 2n and forms the last ring 68n' between the last blade 2n and the second beam 30. Finally, after passing through the last ring 68n' by the fixed confinement ring 68n+1, it extends toward the direction of the second beam 30, and is plugged together with the second end of the first warp 62 and the second end of the second warp 64 into the positioning hole 300 on one side of the second beam 30 .

As shown in FIG. 14 and FIG. 15 , the first pulling rope 82 extends outward from the reel 981 and passes through the first beam 10 . After passing through the front side of the curtain body 20 , the second end is inserted into the positioning hole 300 of the second beam 30 . . The rope segment of the first pulling rope 82 located between the first beam 10 and the second beam 30 is adjacent to the first warp 62 and passes through the first positioning loops 70 located on the first warp 62 in sequence . The second pulling cord 84 extends outward from the reel 981 and passes through the first beam 10 . After passing through the rear side of the curtain body 20 , the second end is inserted into the second beam 30 The positioning hole 30O. The rope segment of the second pulling rope 84 located between the first beam 10 and the second beam 30 is adjacent to the second warp 64 and passes through the second positioning loops 72 located on the second warp in sequence. Finally, an anchoring piece 32 is plugged and fixed in the positioning hole 300 to fix the confinement ring 68n+1, the first warp 62, the second warp 64, the first drawstring 82 and the second drawstring 84. It is fixedly connected to the second beam 30 .

In this embodiment, each ladder rope 60 corresponds to a positioning hole 30O disposed on the bottom surface of the second beam 30, but it is not limited to this, and the positioning hole 300 can also be disposed on other surfaces of the second beam 30 according to the design. Or set up a plurality of positioning holes corresponding to different components of the ladder rope 60, for example, the first pull rope, the second pull rope, the first warp thread, the second warp thread and the fixed restraint ring respectively correspond to different positioning holes, but only if they can be accurately The fixed restraint ring 68n+1, the first warp thread 62, the second warp thread 64, the first drawstring 82 and the second drawstring 84 are fixedly connected to the second beam 30 to prevent the fixed restraint ring 68n+1 from loosening , or to avoid separation of the second beam 30 from the ladder cord 60 , the first pull cord 82 and the second pull cord 84 . In addition, in this embodiment, the first warp 62, the second warp 64, the supports 661-66n, the constraining rings 681-68n+1, the plurality of first positioning rings 70 and the plurality of second The positioning ring 72 is integrally formed during the weaving process. In another embodiment, the support members 661-66n, the confinement rings 681-68n+1, the plurality of first positioning rings 70 and the plurality of second positioning rings 72 can also be independently combined with the first meridian 62 and the second On the two warp threads 64, for example, by sewing or gluing, the support members 661-66n, the restraining rings 681-68n+1, the plurality of first positioning rings 70 and the plurality of second positioning rings 72 are fixed on the first warp on the thread 62 and the second meridian 64 without moving relative to the first meridian 62 and the second meridian 64 .

In addition, in this embodiment, each restraint ring is a loop formed by folding a rope segment in half, but it is not limited to this, and each restraint ring can also be composed of a complete rope Connected to the second meridian 64 . Each confinement ring needs to pass through the ring formed by the previous confinement ring. The required length of the loop and the through hole of the blade below it makes the total length of the rope segments constituting each restraint ring, that is, the perimeter of each restraint ring, at least greater than twice the predetermined distance D. In this embodiment, the plurality of first positioning rings 70 are correspondingly disposed adjacent to the first positions P11 to P1n, and the plurality of second positioning rings 72 are correspondingly disposed adjacent to the second positions P21 to P2n. Therefore, each The distances between the first positioning rings 70 and the distances between the second positioning rings 72 are also approximately a predetermined distance D, but not limited thereto. The distances between the first positioning rings 70 and the distances between the second positioning rings 72 can be determined according to design requirements, and are not limited to equidistant configurations. In this embodiment, the first positioning ring 70 and the second positioning ring 72 only allow the first pulling rope 82 and the second pulling rope 84 to pass through, respectively, so the circumference of the first positioning ring 70 and the second positioning ring 72 The perimeter is smaller than the perimeter of the confinement ring, but it is not limited. The size of the first positioning ring 70 and the second positioning ring 72 can be determined according to the design requirements, but the diameter of the hole should be larger than the diameter of the first pulling rope 82 and the second pulling rope 84, so as to facilitate the first pulling rope 82 and the second pulling rope 84. The rope 84 is passed through and can freely move up and down in the corresponding positioning ring.

With the aforementioned configuration, the blades 21 to 2n are restricted by the confinement rings 681 to 68n, respectively, and cannot move laterally greatly. The first pull cords 82 are restricted by the first positioning loops 70 so as not to be away from the first warp threads 62 in the horizontal direction, and the first pull cords 82 are not easily pulled out in the horizontal direction to form a loop. The second drawstrings 84 are restricted by the second positioning rings 72 so as not to be away from the second warp threads 64 in the horizontal direction, so that the second drawstrings 84 are not easily pulled out in the horizontal direction to form a loop.

Please refer to the venetian blinds 200 shown in FIGS. 11 to 16 , which reveal that the second beam 30 is located at the farthest position from the first beam 10 , which is defined as a fully unfolded state herein. When the blind 200 is fully deployed, the first meridian 62 and the second meridian 64 between the first beam 10 and the second beam 30 extend substantially parallel to and perpendicular to each other, respectively. At the same time, the spring of the lift mechanism 90 Most of the 96 is wound on the driving wheel 92 and stores energy, and the reels 981 and 982 also release most of the first and second pulling ropes 82 and 84 . 11 and 19 again, when the user wants to change the shading range of the curtain body 20 of the blind 200 shown in FIG. The distance between the beams 10 is reduced. At this time, the first pull rope 82 and the second pull rope 84 located between the second beam 30 and the first beam 10 become slack, and the spring 96 of the lifting mechanism 90 is gradually released from the driving pulley 92 and rewinds around the spring storage pulley At the same time, the energy is released to drive the driving wheel 92 and the reel 981, 982 to rotate. At this time, the first pulling rope 82 and the second pulling rope 84 on the left are gradually reeled by the reel 981, and the first pulling rope on the right The rope 82 and the second pull rope 84 are gradually taken up by the reel 982 . When the second beam 30 moves to the closest position to the first beam 10 , that is, the state shown in FIG. 19 , it is defined as the fully collapsed state. The user can adjust the light-shielding range of the curtain body 20 between the fully expanded state and the fully collapsed state by moving the second beam 30 . During the movement of the second beam 30 relative to the first beam 10 , the lifting mechanism 90 cooperates with the distance change between the second beam 30 and the first beam 10 to retract or release the first pull rope 82 and the second pull rope 84 . , and the technique of making the second beam 30 stay at the position where the operation ends when the second beam 30 is no longer moved, all belong to the conventional techniques in the art, and will not be described in detail here. The number of the first pull cord 82 and the second pull cord 84 is not limited to two each, and the number may be determined by the width of the blind 200, but at least one The second beam 30 of the venetian blind 200 can be maintained horizontally without any inclination.

Please refer to FIG. 11 , FIG. 15 and FIG. 16 , which reveal that the first positions P11 to P1n on the first meridian 62 and the second positions P21 to P2n on the second meridian 64 are opposite to each other at the same height, so that The supports 661-66n are arranged at horizontal intervals, and the blades 21-2n supported thereon are also arranged at horizontal intervals, which are defined as light-transmitting states herein. Please refer to Figure 20 to Figure 22 together, In this embodiment, the steering module 46 further includes an operating rod 462 exposed on the first beam 10 for the user to drive the steering module 46 . When the user wants to change the light transmittance of the venetian blind 200, he can rotate the operating lever 462 to drive the steering module 46 to drive the shaft 48 to rotate, and the rotation of the shaft 48 will drive the first drum 42 and the first rotating drum 42 The two rotating drums 44 rotate synchronously and in the same direction, which together make the ladder ropes 60 connected to the first rotating drum 42 and the second rotating drum 44 change state. As shown in FIGS. 20 to 22 , when the user rotates the operating lever 462 to drive the shaft 48 to rotate clockwise, taking the ladder rope 60 on the left side of FIG. 20 as an example, the first drum 42 releases the first warp 62, and synchronously winds up portions of second warp 64 so that the length of first warp 62 between first beam 10 and second beam 30 increases and the length of second warp 64 decreases, As a result, the support members 661-66n between the first meridian 62 and the second meridian 64 are inclined with a low front and a high back (in terms of the angle of the user facing the venetian blind 200), and drive the blades 21 thereon. ~2n sync tilt. As shown in the partial side view of FIG. 22 , the first ring 681 ′ of the first constraining ring 681 abuts against the bottom of the first blade 21 , and the second constraining ring 682 passes through the first ring 681 ′ along the first ring 681 ′. The bottom surface of a vane 21 extends toward the second vane 22 , passes through the through hole 22O of the vane 22 , and passes through the section of the second confinement ring 682 of the through hole 22O, compared to the second confinement ring 682 extending along the second vane 22 . The sections of the two constraining rings 682 are in a bent state, and have a positioning effect on the second blade 22 to prevent the second blade 22 from sliding down. By analogy, all the blades 21-21n are positioned by bending and passing through the corresponding confinement rings 681-68n respectively, so that the blades 21-2n are in a state in which the overlapping ranges are approximately equal to each other as shown in FIG. There is no gap to form a closed state, which can effectively block light and protect privacy. The operation principle and configuration of adjusting the light transmittance of the curtain body 20 between the light transmittance state and the light block state by the steering mechanism 40 is a conventional technique in the art, and will not be described in detail here.

In this embodiment, the lifting mechanism 90 is a spring box as an example, but it is not limit. There are various mechanisms in the art, including manual or electric, which can drive the second beam 30 to change its position, depending on the requirements. In this embodiment, the lifting mechanism 90 is disposed at the cavity of the first beam 10 and is located between the first rotating drum 42 and the second rotating drum 44 , but not limited thereto. Depending on the width of the curtain 200 , the number of drums may increase. According to the size of the cavity of the first beam 10 and the position of the drum, the lifting mechanism may also be arranged at other positions in the cavity of the first beam 10 . In addition, a lift mechanism may also be provided in the second beam 30 .

Please refer to FIG. 23 to FIG. 27 , which are the Venetian blind 200' of the third embodiment of the present invention. As shown in Figures 23 and 24, the Venetian blind 200' discloses that the lifting mechanism 90' is provided in the second beam 30, which replaces the lifting mechanism 90 provided in the first beam 10 in the curtain 200 of the previous embodiment. The overall configuration of the venetian blind 200 ′ is roughly the same as that of the venetian blind 200 of the previous embodiment, including the first beam 10 , the curtain body 20 , the second beam 30 , the steering mechanism 40 ′, the ladder rope 60 , the first pulling rope 82 , the second beam 30 , the Two pull ropes 84 and a lifting mechanism 90'. The first beam 10 can be fixed on the window frame or the wall for suspending the curtain body 20 and the second beam 30 . The curtain body 20 includes a plurality of blades. In this embodiment, the blades are defined as the first blade 21 , the second blade 22 , the third blade 23 . . . and the last blade 2n in order from top to bottom. The first blade 21 is closest to the first beam 10 and the last blade 2n is closest to the second beam 30 . The first beam 10 has a cavity, and the steering mechanism 40' is disposed in the cavity of the first beam 10, wherein the steering mechanism 40' includes a first drum 42', a second drum 44', and a steering module 46' And the shaft 48', the first drum 42' and the second drum 44' are respectively arranged on the left and right sides of the first beam 10, the steering module 46' is arranged on the left side of the first drum 42', the shaft 48 ' then passes through the steering module 46', the first drum 42' and the second drum 44', so that the steering module 46' can drive the first drum 42' and the second drum 44 through the shaft 48' 'Synchronized rotation. In this embodiment, the number of the ladder ropes 60 is two, and there are a first warp thread 62 and a second warp thread 64 respectively. One end and the first end of the second warp 64 are respectively connected to the first drum 42 ′ and the second drum 44 ′, and the first warp 62 passes through the front side of the curtain body 20 , and the second warp 64 passes through the curtain body 20 rear side. The venetian blind 200 ′ of this embodiment includes two sets of first pull cords 82 and second pull cords 84 , wherein one set of first pull cords 82 and second pull cords 84 are arranged on the left side of the first beam 10 , and are connected with the left The ladder ropes 60 are adjacent to each other, and another group of the first pull rope 82 and the second pull rope 84 are arranged on the right side of the first beam 10 and adjacent to the right ladder rope 60 . The first drawstring 82 is adjacent to the first warp 62 , and the second drawstring 84 is adjacent to the second warp 64 .

Taking the ladder rope 60 on the left side of FIG. 23 as an example, the structure of the ladder rope 60 will be further described. Similar to the configuration of the venetian blind 200 of the previous embodiment, the ladder cord 60 of this embodiment has a first warp 62, a second warp 64, a plurality of supports, a plurality of confinement rings, a plurality of first positioning rings 70 and A plurality of second positioning rings 72 . The first end of the first meridian 62 and the second meridian 64 are substantially parallel to each other (eg, the first meridian 62 and the second meridian 64 near the first beam 10 and/or the second beam 30 may appear different from each other. parallel state), a plurality of supports are arranged between the first warp 62 and the second warp 64 at intervals, and the distances between the supports are equal. These support members are defined as the first support member 661 and the second support member 662 in order from top to bottom, and so on. The first blade 21 bears against the first support member 661 , the second blade 22 bears against the second support member 662 , and so on. A plurality of confinement rings are disposed on the second meridian 64 at intervals, and the confinement rings are defined as the first confinement ring 681 and the second confinement ring 682 in sequence from top to bottom, and so on. The confinement rings are at the same distance from each other and are arranged staggered with the supports. In addition, the ladder rope 60 also includes a plurality of first positioning loops 70 and a plurality of second positioning loops 72, the first positioning loops 70 are arranged on the first warp 62 at intervals, and the second positioning loops 72 are spaced apart from each other Set on the second meridian 64 .

The side of the first blade 21 close to the second meridian 64 has a through hole 210, and the second blade The side of 22 close to the second meridian 64 has a through hole 22O, and so on. After the first confinement ring 681 passes through the through hole 210 of the first blade 21, a first ring 681' is formed between the first blade 21 and the second blade 22, and the second confinement ring 682 passes through the first ring 681' Then, pass through the through hole 22O of the second blade 22, and form a second ring 682' between the second blade 22 and the third blade 23, and the third confinement ring 683 passes through the second ring 682' ( 25), and so on. The confinement ring located above the blade first passes through the ring formed by the previous confinement ring, then passes through the through hole of the lower blade, and forms another ring under the blade, and the next confinement ring passes through this and is located under the blade The rings of the blades are interlocked with each other, so that the through holes of each blade are passed through by at least one confinement ring, and are restricted to the vicinity of each confinement ring, and even if the corresponding confinement ring is pulled out from the through hole in the opposite direction , the corresponding confinement rings will also be pulled through the through holes at the same time, and continue to restrict the position of the through holes of the blades, so that each blade will not move laterally greatly.

Different from the curtain 200 of the previous embodiment, the second beam 30 of the blind 200' of the present embodiment has a cavity, and the lifting mechanism 90' is arranged in the cavity of the second beam 30. The elevating mechanism 90' includes a driving wheel 92', a spring storage wheel 94', a spring 96', a winding wheel 981', and a winding wheel 982'. One end of the spring 96' is connected to the driving wheel 92', and the other end is wound around the spring storage wheel 94', and can be wound on the driving wheel 92' or from the driving wheel 92 according to the rotation direction of the driving wheel 92'. ' is released and wound on the spring storage wheel 94'. The reel 981' is arranged to the right and is adjacent to the driving wheel 92', and the other reel 982' is arranged to the left and is farther away from the driving wheel 92', and the driving wheel 92' is connected to the winding wheel 981' and the winding wheel 982'. They can be linked with each other through gear meshing. In this embodiment, the first end of the first pulling rope 82 and the first end of the second pulling rope 84 located on the left side of FIG. 23 are respectively connected to the left reel 981 ′, and the The first end and the first end of the second pull cord 84 are connected to the right reel 982', respectively. The user can use the movement of the second beam 30 to adjust the curtain body 20 between the fully extended state and the fully collapsed state shading range. When the distance between the second beam 30 and the first beam 10 decreases, the spring 96' releases energy to drive the driving wheel 92' to rotate, thereby driving the reel 981' and the reel 982' to rotate, so as to wind up the corresponding first beams respectively. Pull cord 82 and second pull cord 84 . When the distance between the second beam 30 and the first beam 10 increases, the reel 981 ′ and the reel 982 ′ are driven by the stretched first pulling rope 82 and the second pulling rope 84 , and simultaneously drive the driving wheel 92 ′ to rotate , and the coiling spring 96' releases and accumulates energy. The operating principle of the lifting mechanism 90 ′ to retract or release the first pull rope 82 and the second pull rope 84 , and the technique of making the second beam 30 stay at the position where the operation ends when the second beam 30 is no longer moved, all belong to Conventional techniques in the art are not described in detail here. The number of the first pull cord 82 and the second pull cord 84 is not limited to two each, and the number may be determined by the width of the venetian blind 200', but at least one first pull cord 82 and one second pull cord 84 are required to ensure The second beam 30 of the venetian blind 200' can be maintained horizontally without any inclination.

The first pull rope 82 and the second pull rope 84 extending from the reels 981 ′ and 982 ′ of the lifting mechanism 90 ′ pass through the second beam 30 , pass through the front side and the rear side of the curtain body 20 respectively, and finally pass through The first beam 10 is connected to the first drum 42' and the second drum 44'. Taking the ladder rope 60 , the first pull rope 82 , the second pull rope 84 and the first drum 42 ′ on the left side of FIG. 23 as an example, when the blades 21 to 2n are in the horizontal state as shown in FIGS. 23 to 25 , the first A warp thread 62 and the first pull cord 82 contact the first drum 42' from the front side of the first drum 42', and pass around the top of the first drum 42' in sequence along the outer peripheral surface of the first drum 42' and the rear side, fixed to the lower part of the first drum 42', the second warp thread 64 and the second pull cord 84 contact the first drum 42' from the rear side of the first drum 42', and rotate along the first After the outer peripheral surface of the drum 42' goes around the top and the rear side of the first drum 42' in sequence, it is also fixed to the lower part of the first drum 42'. In other words, the first warp 62, the second warp 64, the first drawstring 82 and the second drawstring 84 are connected to the first drum 42' at the position where the first drum 42' is closest to the blade.

When the user wants to change the light transmittance of the blade, he can drive the shaft 48' to rotate by rotating the operating lever 462'. For example, as shown in FIG. The drum 42' rotates synchronously and in the same direction. At this time, the position where the first warp 62, the second warp 64, the first pull rope 82 and the second pull rope 84 are connected to the first drum 42' will follow the first A clockwise rotation of the drum 42' is accompanied by a clockwise rotation. During the rotation of the first drum 42', the first warp 62 and the first pull cord 82 located on the front side of the first drum 42' will gradually be released from the outer peripheral surface of the first drum 42', so that the The length of a warp thread 62 and the first pull cord 82 around the outer peripheral surface of the first drum 42 ′ decreases, while the length between the first beam 10 and the second beam 30 increases. On the contrary, the second warp 64 and the second pulling rope 84 located on the rear side of the first drum 42' are gradually wound around the outer peripheral surface of the first drum 42', so that the second warp 64 and The length of the second pull cord 84 around the outer peripheral surface of the first drum 42 ′ increases while the length between the first beam 10 and the second beam 30 decreases. Thereby, as the lengths of the first warp 62 and the second warp 64 change relatively, the supports 661 to 66n between the first warp 62 and the second warp 64 are inclined to be low in the front and high in the back ( In terms of the angle at which the user faces the venetian blind 200'), and drives the blades 21-2n thereon to incline synchronously, the light transmittance of the blind body 20 can be changed. The actuation principle and configuration of adjusting the light transmission degree of the curtain body 20 between the light transmission state and the light shading state by the steering mechanism 40' is a conventional technology in the field, and will not be repeated here.

With the venetian blind of the present creation, a restraining ring is provided on the ladder rope, the blade can be restricted between the first warp and the second warp, the blade can be prevented from being greatly moved or pulled out laterally, and the blade can be in a closed state when the blade is inclined. When the blade is slid down, the degree of sliding of the blade is limited, so that the light leakage phenomenon is not easy to occur between the blades. The positioning ring of the ladder rope can effectively limit the position of the pulling rope, so that the pulling rope and the ladder rope are as close as possible, which is visually integrated, making the overall appearance of the blinds simpler, and the positioning ring is also The drawstring can be prevented from being drawn out in a horizontal direction to form a rope loop, which can increase the safety of the venetian blind.

The above is only a preferred feasible embodiment of this creation, and all equivalent changes made by applying the description of this creation and the scope of the patent application should be included in the patent scope of this creation.

21: The first blade

22: Second blade

23: Third Blade

21O, 22O, 23O: through hole

42: The first drum

48: Axle

52: First warp

P11, P12, P13: first position

54: Second warp

P21, P22, P23: Second position

P31, P32, P33: The third position

561: First support

562: Second support

563: Third Support

581: First Constraint Ring

581’: first ring

582: Second Constraint Ring

582’: Second Ring

583: Third Constraint Ring

583’: Third Ring

D: predetermined distance

Claims (12)

A venetian blind, comprising: a first beam; a second beam, located below the first beam; a plurality of blades, located between the first beam and the second beam; a steering mechanism, arranged on the first beam A beam; a ladder rope, comprising: a first warp line with a plurality of first positions, and the spacing between the first positions is a predetermined distance; a second warp line, spaced apart from the first warp line and Arranged substantially in parallel, the second meridian has a plurality of second positions and a plurality of third positions, the spacing between the second positions is the predetermined distance, and each of the second positions corresponds to each of the first Position setting, the spacing between each of the third positions is the predetermined distance, and each of the second positions and each of the third positions are staggered; a plurality of supports are arranged on the first warp and the second warp In between, one end of each of the supporting members is respectively connected to each of the first positions of the first meridian, and the other end of each of the supporting members is correspondingly connected to each of the second positions of the second meridian; and a plurality of A confinement ring is respectively connected to each of the third positions of the second meridian, and the plurality of confinement rings include a first confinement ring and a second confinement ring adjacent to each other; one of the first meridian The first end and a first end of the second warp are respectively connected to the steering mechanism in the first beam, so that the ladder rope is suspended below the first beam, and a second end of the first warp The end and a second end of the second meridian are respectively connected to the second beam; each of the blades is arranged between the first meridian and the second meridian and bears on each of the supporting members correspondingly, the The steering mechanism connects the first meridian and the second meridian to drive the first meridian and the second meridian toward the Move in the opposite direction, so that the plurality of supports change the angle with the up and down dislocation of the first meridian and the second meridian, and at the same time drive the plurality of blades to change the angle; wherein, at least one of the blades is adjacent to the second One side of the warp is provided with a through hole, one of the first confinement ring and the second confinement ring passes through the through hole to form a loop, and the loop is then surrounded by the first confinement ring that has not passed through the through hole. The confinement ring or the second confinement ring passes through, so that the through hole remains penetrated by at least one of the first confinement ring and the second confinement ring. The Venetian blind of claim 1, wherein the perimeter of each of the confinement rings is greater than twice the predetermined distance. The venetian blind of claim 1, wherein the plurality of confinement rings are integrally formed with the second warp system. The venetian blind as claimed in claim 1, further comprising an anchoring member fastened to the second beam, and the first warp and the second warp are connected to the second beam by the anchoring member. The venetian blind of claim 1, wherein the plurality of blades include a first blade and a second blade, the first blade is closer to the first beam than the second blade, the first blade and the second blade One side of the blade adjacent to the second meridian is respectively provided with the through hole; the plurality of confinement rings include a first confinement ring and a second confinement ring, and on the second meridian, the first confinement ring is connected The third position is closer to the first beam than the third position connecting the second confinement ring; wherein, the first confinement ring passes through the through hole of the first blade, so that the first confinement ring is in the second A first ring is formed between a blade and the second blade. After the second confinement ring passes through the first ring, it passes through the through hole of the second blade to restrict the first confinement ring from passing through. The through hole is provided on the first blade. The venetian blind as claimed in claim 5, wherein the plurality of support members comprise a first support member and a second support member, and the first support member is closer to the first support member than the second support member beam, the first blade bears against the first support, the second blade bears against the second support, and on the second meridian, is connected to the third position of the first confinement ring, more connected The second position of the first support is closer to the first beam. The venetian blind of claim 5, wherein the plurality of blades includes a last blade, the last blade is the blade of the plurality of blades closest to the second beam, and the last blade is adjacent to the second meridian One side is provided with the through hole; the plurality of confinement rings include a final confinement ring and a fixed confinement ring, and on the second meridian, the third position of the fixed confinement ring is connected to the third position connected to the last confinement ring The third position is closer to the second beam; after the last restraint ring passes through the through hole of the last blade, a final ring is formed between the last blade and the second beam, and the fixed restraint ring passes through the The last ring is then connected to the second beam to restrict the last restraint ring from passing through the through hole of the last blade. The venetian blind of claim 1, wherein the plurality of blades include a first blade and a second blade, the first blade is closer to the first beam than the second blade, and the plurality of supports include a first blade a support member and a second support member, the first support member is closer to the first beam than the second support member, the first blade is supported against the first support member, and the second blade is supported against the first beam Two supporting parts; the plurality of confinement rings include a first confinement ring and a second confinement ring, on the second meridian, the third position connected to the first confinement ring is more than the one connected to the second confinement ring The third position is close to the first beam, and the third position connected to the first confinement ring is closer to the first beam than the second position connected to the first support; wherein the first blade and the first The through holes are respectively provided on one side of the two blades adjacent to the second meridian, and the second confinement ring passes through the through holes of the first blade, so that the second confinement ring is located between the first blade and the first beam. A second loop is formed therebetween, and the first confinement ring passes through the second loop and is then fixed on the second warp, so as to restrict the second confinement ring from passing through the through hole of the first blade. The venetian blind as claimed in claim 7 or 8, further comprising a lifting mechanism, a pulling rope and a plurality of positioning rings, each of which is connected to at least one of the first warp and the second warp at intervals One, the lifting mechanism is arranged on one of the first beam and the second beam, a first end of the pulling rope is connected to the lifting mechanism, and the lifting mechanism is used to follow the first beam and the second beam The distance between the beams changes to release or take up the pull rope; a second end of the pull rope extends to the other of the first beam and the second beam, and the pull rope passes through the plurality of positioning loops at least one positioning ring. The venetian blind of claim 9, wherein the perimeter of each of the positioning rings is smaller than the perimeter of the confinement ring. The venetian blind as claimed in claim 9, wherein the lifting mechanism is disposed on the first beam, and the second end of the pulling rope is connected to the second beam. The venetian blind as claimed in claim 9, wherein the lifting mechanism is disposed on the second beam, and the second end of the pulling rope is connected to the steering mechanism.

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