CN211814856U - Ladder rope of shutter curtain - Google Patents

Abstract

The utility model discloses a ladder rope of a blind curtain, aiming at providing a ladder rope of a blind curtain which reduces deformation, has freely opened and closed blades and long service life. The novel yarn comprises a pair of longitudinal yarns and a pair of transverse yarns, wherein the longitudinal yarns are provided with core yarns and tensile yarns, the two sides of each core yarn are respectively provided with a left hook yarn and a right hook yarn which are hooked, the tensile yarns are respectively connected with the left hook yarn and the right hook yarn and are tightly attached to the front surface and the back surface of each core yarn, the left hook yarn, the right hook yarn and the tensile yarns cover the core yarns, and the pair of transverse yarns are respectively and alternately connected with the pair of longitudinal yarns to form a plurality of transverse partitions. The utility model discloses beneficial effect does: the dispersed ladder ropes extend longitudinally, and the defect that the blades of the blind cannot be opened and closed in place due to the fact that the longitudinal lines are longitudinally extended is overcome. Ensures the flexible opening and closing of the blades of the blind and prolongs the service life of the blind. Reasonable structure, convenient manufacture and convenient popularization.

Description

Ladder rope of shutter curtain

Technical Field

The utility model relates to a venetian blind related technology field especially indicates a venetian blind connects ladder rope's of blade structure.

Background

The blind curtain is a curtain commonly used in modern homes and offices. The blades of the shutter can not be separated from the ladder rope. The ladder rope consists of two mutually parallel longitudinal lines and a plurality of mutually parallel transverse lines. The blades rest on the transverse line. One longitudinal line moves up and down, and the two ends of the transverse line form a fall to turn over the blades. Because the longitudinal line needs to bear the weight of the blades, the longitudinal line is easy to elongate and deform to influence the opening and closing of the blades when the shutter is used for a long time. Therefore, the improved design changes the longitudinal line into a rope shape. With the development of the technology, the raw materials for manufacturing the blades are more and more abundant. Most of these new blades are heavier in mass than the earlier cloth ribbon blades. Meanwhile, as the construction technology advances, windows become larger, such as french windows, and the number of blades covering the large windows also increases relatively. Eventually, the overall weight carried by the longitudinal wires also increases. Thus, the longitudinal string of the window blind is elongated after a certain period of use. Due to the different longitudinal stress of the longitudinal lines, the stretching amount of each part of the longitudinal lines is different. The position of the longitudinal line with small change of the elongation amount can adapt to the opening and closing of the blades of the blind, and the position of the longitudinal line with large change of the elongation amount of the blades of the blind can not adapt to the opening and closing of the blades of the blind completely, thus directly influencing the service life of the blind.

SUMMERY OF THE UTILITY MODEL

The utility model provides a ladder rope structure of a blind curtain, which can reduce the deformation, can freely open and close the blades and has long service life, in order to overcome the defects of the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the ladder rope for shutter curtain includes one pair of longitudinal lines and one pair of transverse lines, the longitudinal lines have core lines and tensile lines, the core lines have hooked left and right hook lines on two sides, the tensile lines are connected to the left and right hook lines and adhered to the core lines, the left, right and tensile lines cover the core lines, and the transverse lines are connected alternately to the longitudinal lines to form transverse partitions. The gap of the longitudinal line is overcome, the longitudinal extension of the ladder rope is reduced, the blades of the blind curtain are flexibly opened and closed in place, and the service life of the blind curtain is prolonged.

Preferably, the tensile wires are two, are respectively and alternately interwoven with the coil hook connecting wires of the left hook wire and the right hook wire, and form intersection on the front surface and the back surface of the core wire; the left hook thread, the right hook thread and the tensile thread surround the core thread, and form an interweaving state with the core thread, and the extending gaps of the longitudinal threads are dispersed.

Preferably, the core wire is a surface soft stretch-resistant slender linear structure; the core wire does not extend longitudinally, so that the blades can be opened and closed flexibly and in place, the core wire transversely has small deformation and forms a cross-woven state with the left hook wire, the right hook wire and the tensile wire, and the longitudinal stretching of the left hook wire and the right hook wire is reduced.

Preferably, the transverse threads, the tensile threads, the left hook threads and the right hook threads are embedded into the surface of the core thread; preventing longitudinal stretching of the longitudinal threads.

Preferably, the transverse threads respectively penetrate through the loops of the left hook thread and the right hook thread, and the transverse threads and the tensile threads are interwoven in the loops; the cohesive force of the tensile wire and the core wire is enhanced, and the longitudinal stretching of the left hook wire and the right hook wire is reduced.

Preferably, one tensile line is alternately interwoven with the coil hooking lines of the left hook line and the right hook line, and the other tensile line is alternately interwoven with the coil hooking line of the left hook line and wraps the coil of the right hook line; the knitting process of the tensile wire is simple.

Preferably, one tensile line is alternately interwoven with the coil hooking lines of the left hook line and the right hook line, and the other tensile line is alternately interwoven with the coil hooking lines of the right hook line and wraps the left hook line coil; the knitting process of the tensile wire is simple. Dispersed gap

Preferably, one tensile wire is alternately interwoven with the coil hooking wire of the left hook wire and wraps the right hook wire coil, and the other tensile wire is alternately interwoven with the coil hooking wire of the right hook wire and wraps the left hook wire coil; the tensile wires are tightly woven, and the extending gaps of the longitudinal wires are effectively dispersed.

The utility model has the advantages that: the dispersed ladder ropes extend longitudinally, and the defect that the blades of the blind cannot be opened and closed in place due to the fact that the longitudinal lines are longitudinally extended is overcome. Ensures the flexible opening and closing of the blades of the blind and prolongs the service life of the blind. Reasonable structure, convenient manufacture and convenient popularization.

Drawings

FIG. 1 is a connection intention of the present invention;

FIG. 2 is an enlarged view of A in FIG. 1;

FIG. 3 is an enlarged view of B of FIG. 1;

FIG. 4 is a schematic connection diagram of another embodiment of the present invention;

fig. 5 is a schematic connection diagram of another embodiment of the present invention.

In the figure: 1, I longitudinal thread, 2, II longitudinal thread, 3, I transverse thread, 4, II transverse thread, 5, dent, 11, I core thread, 12, I left crochet, 13, I right crochet, 14, I tensile thread, 15, II tensile thread, 21, II core thread, 22, II left crochet, 23, II right crochet, 24, III tensile thread, 25, IV tensile thread, 121, I left a crochet, 122, I left B crochet, 123, I left C crochet, 131, I right a crochet, 132, I right B crochet, 133, I right C crochet, 221, II left a crochet, 222, II left B crochet, 223, II left C crochet, 231, II right a crochet, 232, II right B crochet, 233, II right C crochet.

Detailed Description

The invention is further described with reference to the accompanying drawings and the detailed description.

Example 1:

as shown in fig. 1 to 3, a ladder cord for a blind includes a pair of longitudinal threads and a pair of lateral threads. The longitudinal line is provided with a core line and a tensile line. The two sides of the core thread are respectively provided with a left hook thread and a right hook thread which are hooked. One longitudinal line is provided with two tensile wires. Each tensile line is respectively connected with the left hook line and the right hook line.

The pair of longitudinal lines includes a longitudinal line I1 and a longitudinal line II 2. The I longitudinal line 1 and the II longitudinal line 2 are rope-shaped. The I longitudinal line 1 and the II longitudinal line 2 are arranged in parallel. Fig. 1 shows a section of a ladder cord. In the figure: to the left of the figure is the left side described herein; to the right of the figure is the right side described herein; the drawing is to the reader side for the front side as recited herein; the figure, facing away from the reader, is the back side as recited herein. The left and right directions of the drawing are the lateral directions described herein, and the up and down directions of the drawing are the longitudinal directions described herein.

The I longitudinal line 1 includes: the I-shaped yarn comprises an I core yarn 11, an I left hook yarn 12, an I right hook yarn 13, an I tensile yarn 14 and an II tensile yarn 15. The I-shaped wire 11 has a flexible and stretch-proof surface, and is a thin and long linear structure (e.g., a thin and long wire of a fluorinated polyethylene polymer material). The I-core wire 11 is a long wire, which has almost no stretch in the longitudinal direction and is soft in the transverse direction, and minute indentations are generated when the wire is wound around the surface thereof, so that the wound wire does not slip longitudinally on the surface thereof.

The I left crochet hook 12 is positioned at the left side of the I core wire 11 and is hooked by a crochet needle. The I right hook thread 13 is positioned at the right side of the I core thread 11 and is hooked by a crochet hook. In fig. 1, the I left a hook loop 121, the I left B hook loop 122, and the I left C hook loop 123 are three hook loops longitudinally and sequentially hooked in the I left hook thread 12. The I right A hook ring 131, the I right B hook ring 132 and the I right C hook ring 133 are three hook rings which are longitudinally and sequentially hooked in the I right hook thread 13. The I left A hook ring 121 and the I right A hook ring 131 are in the same horizontal row. The I left B hook loop 122 and the I right B hook loop 132 are in the same row in the transverse direction. The I left C hook loop 123 and the I right C hook loop 133 are in the same horizontal row.

The two tensile wires are respectively and alternately interwoven with the coil hook connecting wires of the left hook wire and the right hook wire. The tensile wires are alternatively attached to the front and back surfaces of the core wires, and the front and back surfaces of the core wires are crossed. The connection of the tensile cord to the irleft a hook loop 121, the irleft B hook loop 122, the irleft C hook loop 123, the irright a hook loop 131, the irright B hook loop 132, and the irright C hook loop 133 is exemplified. The II tensile strand 15 is located on the front surface of the I core wire 11, comes to the position of the I left A hook loop 121, turns to the back surface of the I core wire 11 around the hook connection line of the I left A hook loop 121, and is attached to the surface of the back surface of the I core wire 11 (as shown by the dotted line at the I longitudinal line 1 in FIG. 1). The II tensile wire 15 continues to the position of the I right B hook ring 132, and the hooking wire wound around the I right B hook ring 132 is turned to the front surface of the I core wire 11 and is tightly attached to the surface of the front surface of the I core wire 11. Then, the II tensile strand 15 comes to the I left C hook loop 123 again, and the hook connecting line around the I left C hook loop 123 turns to the back of the I core strand 11 again, and so on. The II tensile wire 15 is alternately interwoven with the coil hook connecting wires of the I left hook wire 12 and the I right hook wire 13, and the I left hook wire 12, the I right hook wire 13 and the I core wire 11 are tightly held. Meanwhile, the I tensile cord 14 is located on the front surface of the I core cord 11, comes to the position of the I right A hook loop 131, turns around the hooking line of the I right A hook loop 131 to the back surface of the I core cord 11, abuts against the surface of the back surface of the I core cord 11, and crosses the II tensile cord 15 located on the back surface of the I core cord 11 (as shown by the dotted line at the I longitudinal line 1 in FIG. 1). The I tensile strand 14 continues to the I left B hook loop 122 position, turns to the front surface of the I core wire 11 around the hooking line of the I left B hook loop 122, clings to the surface of the front surface of the I core wire 11, and crosses the II tensile strand 15 positioned on the front surface of the I core wire 11. Then, the I tensile strand 14 comes to the I right C hook loop 133 again, and the hooking line around the I right C hook loop 133 goes to the back of the I core strand 11 again, and the process is repeated. The I tensile wire 14 is alternately interwoven with the coil hook connecting wires of the I left hook wire 12 and the I right hook wire 13, and the I left hook wire 12, the I right hook wire 13 and the I core wire 11 are tightly held.

The II longitudinal line 2 includes: II core wire 21, II left hook wire 22, II right hook wire 23, III tensile wire 24 and IV tensile wire 25. The II core 21 is identical in structure and geometry to the I core 11. The II left crochet hook 22 is positioned at the left side of the II core wire 21 and is hooked by a crochet needle. The II right hook thread 23 is positioned at the right side of the II core thread 21 and is hooked by a crochet needle. The III tensile strand 24 and the IV tensile strand 25 are respectively and alternately interwoven with the coil hook connecting strands of the II left hook strand 22 and the II right hook strand 23, and form intersection on the front and back of the II core strand 21, so that the II left hook strand 22, the II right hook strand 23 and the II core strand 21 are tightly held. The structure of the II longitudinal line 2 is the same as that of the I longitudinal line 1, and detailed description is omitted. In fig. 1, a broken line at the II longitudinal line 2 indicates a structure on the back of the II core wire 21.

The pair of transverse lines are respectively and alternately connected with the pair of longitudinal lines to form a plurality of transverse partitions. The pair of transverse lines comprises: horizontal lines I and II 3. Referring to fig. 1, the transverse line I3 is connected with the longitudinal line II 2, while the transverse line II 4 is connected with the longitudinal line I1, and the transverse line I3 crosses over the longitudinal line I1 and is connected with the longitudinal line I1 separately from the longitudinal line II 2 by the same longitudinal distance (the distance is determined by the design of the blind and the blades, and is finally expressed in the number of hook loops of the hook lines); meanwhile, the II transverse line 4 also crosses to the II longitudinal line 2 from the I longitudinal line 1 and is connected with the II longitudinal line 2. Transverse I-line 3 crosses from longitudinal II-line 2 to longitudinal I-line 1, forming a segment of non-interlaced transverse I-line 3. Similarly, horizontal II line 4 crosses from vertical I line 1 to vertical II line 2, also forming a section of horizontal II line 4 without interlacing. The non-interlaced transverse I threads 3 form transverse partitions with the non-interlaced transverse II threads 4. The I transverse lines 3 and the II transverse lines 4 are alternately connected with the I longitudinal lines 1 and the II longitudinal lines 2 to form a plurality of equally spaced transverse partitions (the transverse distance between the I longitudinal lines 1 and the II longitudinal lines 2, namely the length of the transverse partitions, is determined by the design of the blind and the blades). The transverse partitions are used for placing the blinds of the blind.

The transverse line respectively passes through the loops of the left hook line and the right hook line, and the transverse line and the tensile line are interwoven in the loops. The connection of the horizontal line 4 and the vertical line 1 of the line II will be described as an example (see FIG. 1). The II transverse line 4 transversely passes through the I right A hook ring 131 and the I left A hook ring 121. I.e., the II transverse thread 4 is interwoven with the loops and the hooking threads of the I right a hook loop 131 and the I left a hook loop 121, respectively. Meanwhile, the II transverse line 4 is interwoven with the I tensile line 14 on the hooking line of the I right A hook ring 131; the II transverse thread 4 is interwoven with the II tensile thread 15 on the hook connecting line of the I left A hook ring 121. The section of the II transverse thread 4 between the I right A hook ring 131 and the I left A hook ring 121 is tightly attached to the front surface of the I core thread 11, and the section of the II transverse thread 4 is positioned between the I core thread 1 and the I tensile thread 14 and the II tensile thread 15. Next, the II cross thread 4 traverses the I left B hook loop 122, turns to the back of the I core thread 11, and traverses the I right B hook loop 132. Meanwhile, the II transverse thread 4 is interwoven with the I tensile thread 14 at the I left B hook loop 122; the II cross thread 4 is interwoven with the II tensile thread 15 at the I right B hook loop 132. The section of the cross thread 4 between the I left B hook loops 122 and the I right B hook loops 132 is attached to the back of the I core thread 11, and the section of the cross thread 4 is located between the I core thread 1 and the I tensile threads 14 and the II tensile threads 15 (shown by dotted lines). The II transverse thread 4 passes through the I right C hook ring 133 transversely to the front of the I core thread 11 and passes through the I left C hook ring 123 transversely, and the process is repeated.

The structure of the connection between the transverse line I3 and the longitudinal line I1 is the same as the structure of the connection between the transverse line II 4 and the longitudinal line I1; the structure that I horizontal line 3, II horizontal line 4 are connected with II vertical line 2 respectively is the same with the structure that I horizontal line 3, II horizontal line 4 are connected with vertical line 1 respectively, and the repeated description is omitted.

The transverse line, the tensile line, the left hook line and the right hook line are embedded into the surface of the core line. As shown in fig. 2, the transverse I thread 3, the tensile I thread 14 and the tensile II thread 15 are interwoven with the hook loops of the left I hook thread 12 and the right I hook thread 13, and the transverse I thread 3, the tensile I thread 14 and the tensile II thread 15 are tightly held with the core I thread 11. Due to the softer surface of the I-shaped core wire 11, the I-shaped transverse wires 3 and the I tensile wires 14 and the II tensile wires 15 are crossed at the front surface of the I-shaped core wire 11, and the dent 5 is generated on the front surface of the I-shaped core wire 11. The I cross thread 3, I tensile threads 14, II tensile threads 15 are embedded in the indentations 5. The I transverse wires 3, the I tensile wires 14 and the II tensile wires 15 do not move longitudinally on the front surface of the I core wires 11. Similarly, the I transverse wires 3 are interwoven with the I tensile wires 14 and the II tensile wires 15 at the back of the I core wires 11, and do not move longitudinally; the II transverse wires 4 are interwoven with the I tensile wires 14 and the II tensile wires 15 at the front and back surfaces of the I core wire 11 without longitudinal movement; the I transverse wires 3 and the II transverse wires 4 are respectively interwoven with the I tensile wires 14 and the II tensile wires 15 on the front and the back of the II core wires 21, and do not move longitudinally.

As shown in fig. 3, the right side of the hook loop of the II left hook thread 22 is clasped with the left side surface of the II core thread 21 due to the action of the III tensile cord 24, and the dent 5 is generated on the left side surface of the II core thread 21 due to the softer property of the surface of the II core thread 21.II the right side of the hook loop of the left hook thread 22 is embedded in the dent 5. The left II hook wire 22 and the left side surface of the II core wire 21 do not move longitudinally. Similarly, the right II hook wire 23 and the right side surface of the II core wire 23 do not move longitudinally; the left hook thread 22 and the right hook thread 23 of the II and the left and right side surfaces of the core thread 21 of the II do not move longitudinally; the I left hook line 12, the I right hook line 13 and the left and right side surfaces of the I core line 11 can not move longitudinally.

The left hook thread, the right hook thread, the tensile thread, the transverse thread and the core thread are coated. The I left hook thread 12 and the I right hook thread 13 are positioned on the left side and the right side of the I core thread 11, the I tensile thread 14 and the II tensile thread 15 are positioned on the front side and the rear side of the I core thread 11, and the I tensile thread 14 and the II tensile thread 15 are interwoven with the coil hook connecting threads of the I left hook thread 12 and the I right hook thread 13, so that the I tensile thread 14 and the II tensile thread 15 transversely hold the I left hook thread 12, the I right hook thread 13 and the I core thread 11 tightly. Meanwhile, the interweaving of the I transverse line 3 or the II transverse line 4 with the I left hook line 12 and the I right hook line 13 strengthens the transverse holding of the I left hook line 12, the I right hook line 13 and the I core line 11. The I core thread 11 is enclosed by the I left hook thread 12, the I right hook thread 13, the I tensile thread 14, the II tensile thread 15, the I lateral thread 3 or the II lateral thread 4. The longitudinal extension of the I-longitudinal line 1 depends on the longitudinal extension of the I-cord 11. The II core thread 21 is enclosed by the II left hook thread 22, the II right hook thread 23, the III tensile thread 24, the IV tensile thread 25, the I lateral thread 3 or the II lateral thread 4. The longitudinal extension of the II longitudinal threads 2 depends on the longitudinal extension of the II core threads 21.

Example 2:

one tensile line is alternately interwoven with the coil hooking lines of the left hook line and the right hook line, and the other tensile line is alternately interwoven with the coil hooking line of the left hook line and wraps the coil of the right hook line. The two tensile wires are respectively crossed on the front and the back of the core wire. The transverse lines and the tensile lines are interwoven with the left hook lines and the right hook lines. The tensile wire, the transverse wire, the left hook wire, the right hook wire and the core wire are coated. As shown in fig. 4, the connection of the III tensile cord 24, the IV tensile cord 25, and the II transverse cord 4 to the II left hook cord 22 and the II right hook cord 23 will be described as an example. In the figure: the II left A hook ring 221, the II left B hook ring 222 and the II left C hook ring 223 are three hook rings which are longitudinally and sequentially hooked in the II left hook thread 22. The II right A hook ring 231, the II right B hook ring 232 and the II right C hook ring 233 are three hook rings which are longitudinally and sequentially hooked in the II right hook thread 23. The left-A hook loop 221 and the right-A hook loop 231 are in the same horizontal row. The left II B hook loop 222 and the right II B hook loop 232 are in the same row in the transverse direction. The left II C hook loop 223 and the right II C hook loop 233 are in the same horizontal row.

The III tensile thread 24 is sequentially interwoven with the hooking threads of the II right A hook ring 231, the II left B hook ring 222 and the II right C hook ring 233, and is simultaneously interwoven with the hooking threads of the II transverse thread 4 on the II right A hook ring 231, the II left B hook ring 222 and the II right C hook ring 233. The III tensile cord 24 clasps the II left hook cord 22, the II right hook cord 23 and the II core cord 21, and the structure is the same as in example 1. The IV tensile strand 25 is positioned on the front side of the II core wire 21 and comes to the position of the II left A hook loop 221, and the hooking wire wound around the II left A hook loop 221 is turned to the back side of the II core wire 21, is adhered to the surface of the back side of the II core wire 21, and is crossed with the III tensile strand 24 positioned on the back side of the II core wire 21 (as shown by the dotted line in FIG. 4). The IV tensile wire 25 is positioned between the III tensile wire 24 and the II core wire 21, so that the IV tensile wire 25 is prevented from being too long in span and not tightly connected with the II right hook wire 23. The IV pull resistant thread 25 is interwoven with the II cross thread 4 at the hook connection of the II left A hook loop 221. The IV tensile cord 25 turns right outside the junction of the II right A hook loop 231 and the II right B hook loop 232 to the front of the II core cord 21. The IV tensile strand 25 crosses the III tensile strand 24 at the front of the II core wire 21. The IV tensile strand 25 is located between the III tensile strand 24 and the II core wire 2. The IV tensile strand 25 continues to the position of the left II C hook loop 223 and turns around the hitching line of the left II C hook loop 223 to the back of the II core strand 21. At the same time, the IV pull cord 25 interweaves with the II cross cord 4 at the II left C hook loop 223. And the process is circulated. The II core thread 21 is enclosed by the II left hook thread 22, the II right hook thread 23, the III tensile thread 24, the IV tensile thread 25, the I lateral thread 3 or the II lateral thread 4.

In the structure, the connection modes of the III tensile wire 24 and the IV tensile wire 25 and the II left hook wire 22 and the II right hook wire 23 are interchanged, that is, one tensile wire is alternately interwoven with the coil hook connecting wires of the left hook wire and the right hook wire, and the other tensile wire is alternately interwoven with the coil hook connecting wires of the right hook wire and wraps the left hook wire coil structure, which is not described in detail.

Example 3:

one tensile wire is alternately interwoven with the coil hooking wire of the left hook wire and wraps the right hook wire coil, and the other tensile wire is alternately interwoven with the coil hooking wire of the right hook wire and wraps the left hook wire coil. The two tensile wires are respectively crossed on the front and the back of the core wire. The transverse lines and the tensile lines are interwoven with the left hook lines and the right hook lines. The tensile wire, the transverse wire, the left hook wire, the right hook wire and the core wire are coated. As shown in fig. 5, in the figure: the connection of the II left a hook loop 221, the II left B hook loop 222, the II left C hook loop 223, the II right a hook loop 231, the II right B hook loop 232, the II right C hook loop 233 is the same as in example 2.

The III tensile wire 24 is positioned on the front surface of the II core wire 21 and comes to the position of the II right A hook ring 231, and the hooking wire wound around the II right A hook ring 231 is turned to the back surface of the II core wire 21 and is tightly adhered to the surface of the back surface of the II core wire 21. The III tensile strand 24 is interwoven with the II cross strand 4 at the hook connection of the II right A hook loop 231. The III tensile cord 24 turns to the front of the II core wire 21 around the left outside of the connection of the II left a hook loop 221 and the II left B hook loop 222. The III tensile wire 24 comes to the position of the II right C hook ring 233, and the hooking wire wound around the II right C hook ring 233 is turned to the back of the II core wire 21. III the tensile cord 24 is interwoven with the II cross thread 4 at the II right C hook loop 233. The III tensile strand 24 is closely attached to the front surface of the II core wire 21. And the process is circulated. Meanwhile, the IV tensile strand 25 is located on the front surface of the II core wire 21, comes to the position of the II left a hook loop 221, turns around the hook connection of the II left a hook loop 221 to the back surface of the II core wire 21, abuts against the surface of the back surface of the II core wire 21, and crosses the III tensile strand 24 located on the back surface of the II core wire 21, that is, the III tensile strand 24 is located between the IV tensile strand 25 and the II core wire 21 (as shown by the dotted line in fig. 5). The IV pull resistant thread 25 is interwoven with the II cross thread 4 at the hook connection of the II left A hook loop 221. The IV tensile cord 25 turns right outside the junction of the II right A hook loop 231 and the II right B hook loop 232 to the front of the II core cord 21. The IV tension thread 25 comes to the position of the II left C hook loop 223, and the hooking line wound around the II left C hook loop 223 turns to the back of the II core thread 21. The IV tensile strand 25 crosses the III tensile strand 24 at the front of the II core wire 21, i.e., the IV tensile strand 25 is located between the III tensile strand 24 and the II core wire 2. The IV tensile cord 25 is interwoven with the II transverse cord 4 at the hook connecting line of the II left C hook loop 223. And the process is circulated. The II core thread 21 is enclosed by the II left hook thread 22, the II right hook thread 23, the III tensile thread 24, the IV tensile thread 25, the I lateral thread 3 or the II lateral thread 4.

The connecting structures of the III tensile line 24, the IV tensile line 25, the I transverse line 3, the II left hook line 22 and the II right hook line 23, the I tensile line 14, the II tensile line 15, the I transverse line 3 or the II transverse line 4, the I left hook line 12 and the I right hook line 13 are the same as the above structures, and are not described again.

Claims (8)

1. A ladder rope of a blind curtain comprises a pair of longitudinal lines and a pair of transverse lines, and is characterized in that: the vertical thread is provided with a core thread and an anti-pulling thread, the two sides of the core thread are respectively provided with a left hook thread and a right hook thread which are hooked, the anti-pulling thread is respectively connected with the left hook thread and the right hook thread and is attached to the front surface and the back surface of the core thread, the left hook thread, the right hook thread and the anti-pulling thread cover the core thread, and the pair of transverse threads are respectively connected with the pair of vertical threads in an alternating mode and form a plurality of transverse partitions.

2. The ladder cord of a blind as claimed in claim 1, wherein: the two tensile wires are respectively and alternately interwoven with the coil hook connecting wires of the left hook wire and the right hook wire, and the front surface and the back surface of the core wire are crossed.

3. The ladder cord of a blind as claimed in claim 1, wherein: the core wire is a surface soft tensile slender linear structure.

4. The ladder cord of a blind as claimed in claim 1, 2 or 3, wherein: the transverse line, the tensile line, the left hook line and the right hook line are embedded into the surface of the core line.

5. The ladder cord of a blind as claimed in claim 1 or 2, wherein: the transverse line respectively passes through the loops of the left hook line and the right hook line, and the transverse line and the tensile line are interwoven in the loops.

6. The ladder cord of a blind as claimed in claim 1, 2 or 3, wherein: one tensile line is alternately interwoven with the coil hooking lines of the left hook line and the right hook line, and the other tensile line is alternately interwoven with the coil hooking line of the left hook line and wraps the coil of the right hook line.

7. The ladder cord of a blind as claimed in claim 1, 2 or 3, wherein: one tensile line is alternately interwoven with the coil hooking lines of the left hook line and the right hook line, and the other tensile line is alternately interwoven with the coil hooking line of the right hook line and wraps the left hook line coil.

8. The ladder cord of a blind as claimed in claim 1, 2 or 3, wherein: one tensile wire is alternately interwoven with the coil hooking wire of the left hook wire and wraps the right hook wire coil, and the other tensile wire is alternately interwoven with the coil hooking wire of the right hook wire and wraps the left hook wire coil.

Images