JP2016053299A - Horizontal blind - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a horizontal blind for surely preventing dislocation of a slat, by reducing an opening-closing operation load of the horizontal blind for arranging a lifting cord in a position offset from a central part in the longitudinal direction of the slat.SOLUTION: A slat 18 can be lifted by winding and unwinding a lifting cord 22a on and from a lifting drum 20a, and a cutout part is formed on at least one side edge of the slat, and among front-rear vertical cords 16a and 16b of a ladder cord, one is arranged along the cutout part, and at least one lifting cord 22a is positioned on the outside more than the side edge of the slat 18 to the slat 18 of at least one stage from above, and is arranged along the vertical cord 16b, and is arranged so as to be inserted between a wall surface of the cutout part and the vertical cord 16b to the slat 18 except for it.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a horizontal blind in which a lifting / lowering cord is disposed at a position offset from a center portion in the front-rear direction of a slat.

  In horizontal blinds having a large number of aligned slats, a lifting cord for raising and lowering the slats has passed through each slat passing through a lifting cord insertion hole formed in the center of the slat in the front-rear direction. Generally, one end of the lifting / lowering cord is connected to a bottom rail provided below the slat and the slat is lifted / lowered by lifting / lowering the bottom rail with the lifting / lowering cord.

  On the other hand, the horizontal blind shown in Patent Document 1 and Patent Document 2 is known as an elevator cord disposed at a position offset from the center in the front-rear direction of the slat.

  In the horizontal blind shown in Patent Document 1, a side edge notch is formed in each slat to engage the vertical code on both sides of the ladder cord, and positioning in the longitudinal direction of the slat is achieved by engaging both the vertical code and the notch. The at least one lifting / lowering cord is positioned on one side of the horizontal blind, and the other lifting / lowering cord is positioned on the opposite side of the horizontal blind, and these lifting / lowering cords are also ladder codes. Are connected to the bottom rail and inserted into loops extending from the vertical cord, respectively, and one end is connected to the bottom rail. Also, the other end of the lifting / lowering cord is guided to one end in the longitudinal direction by a guide roller or the like in the head box and led out to the outside through a stopper device. The lifting / lowering cord led out from the head box is pulled down. By operating, the bottom rail rises, and the slats are folded in order from the bottom by this bottom rail. On the other hand, by operating the lifting cord to release the stopper device, the bottom rail and slats are lowered by their own weight. It is supposed to be.

  Thus, in the thing of patent document 1, since the raising / lowering cord is located in the side edge part of a slat and the hole which the raising / lowering cord penetrates is not formed in a slat, the light leakage at the time of shielding can be prevented. In addition, the bottom rail can be prevented from being tilted by disposing the lifting cords in the front-rear direction.

  Further, the horizontal blind shown in Patent Document 2 is configured with two cords parallel to the top and bottom of the ladder-like support cord, and at the side edge of the position supported by the ladder-like support cord of the slat, When a substantially U-shaped notch is provided and the slats are supported by the middle cord portion of the ladder-like support cord, the upper and lower two cords of the middle cord portion are reversed in the vertical relationship, and the cords are crossed at both ends of the middle cord portion. The crossing part is engaged with a U-shaped notch provided in the slat, and an elevating cord for raising and lowering the slat is attached to the vertical cord part of the ladder-like support cord on one outer side of the slat. It is set.

  As a result, in the slat in which the hole for inserting the lifting / lowering cord is not formed, the slat is held by the middle cord crossed up and down and the middle cord is formed in the U-shaped notch formed on both side edges of the slat. Since the crossing portion is engaged, the horizontal movement of the slat can be restricted.

Japanese Utility Model Publication 3-35034 Japanese Utility Model Publication No. 4-40396

  However, in the horizontal blind described in Patent Document 1, since the slat is lifted by directly operating the other end of the lifting cord led out from the head box, when the slat is lifted, The operation of pulling down the other end of the cord has to be performed until the slat is folded into a desired position, and there is a problem that it is difficult to apply to a product having a large product size and heavy weight.

  Further, in the horizontal blind described in Patent Document 2, when the slat is raised, the vertical cord portion lies along with the folding of the slat. At this time, the middle cord in which the vertical relationship is reversed The two cords in the portion may be in a state where the vertical relationship of the cords is reversed when the vertical cords face in the horizontal direction. If raising and lowering of the slat is repeated in this state, there is a problem that the engagement between the notch of the slat and the middle cord is released, and the slat is displaced in the horizontal direction.

  The present invention is for solving such problems, and a first object is to operate the lifting / lowering cord for lifting / lowering the slat by arranging the lifting / lowering cord at a position offset from the central portion in the front-rear direction of the slat. It is to provide a horizontal blind that can reduce the load.

  In addition to the first object, a second object is to provide a horizontal blind that can surely prevent a slat from shifting.

In order to achieve the above-described object, the present invention provides a rotating shaft that is rotatably supported in the head box, a plurality of ladder cords that are tilted in conjunction with the rotation of the rotating shaft, and a ladder cord that is aligned. In a horizontal blind, comprising a plurality of slats and a plurality of elevating cords suspended from the head box and capable of elevating and lowering the slats, wherein the elevating cords are disposed at positions offset from the center of the slat in the front-rear direction ,
It has a plurality of lifting drums that rotate in conjunction with the rotation of the rotating shaft, and one end of the lifting cord is connected to the lifting drum so that it can be wound and unwound.
A cutout is formed on at least one side edge of the slat, and one of the vertical cords before and after the ladder cord is arranged along the cutout,
At least one lifting cord is arranged along the vertical cord outside the side edge of the slat for at least one slat from the top, and the wall of the notch and the vertical cord for the other slats. It is arranged to be inserted between the two.

  Furthermore, at least one slat from the top is provided with an annular portion located on the outside of the slat, and at least one lifting cord is inserted between the annular portion and then between the wall surface of the notch portion of the lower slat and the vertical cord. It is arranged to be inserted through.

  Further, the annular portion is provided on the outer side of the slat from a connecting portion between the vertical cord of the ladder cord and the middle cord.

Furthermore, the annular portion is formed in a slat clip that fixes the slat and the ladder cord.

The present invention also includes a rotating shaft that is rotatably supported in the head box, a plurality of ladder cords that are tilted in conjunction with the rotation of the rotating shaft, a plurality of slats that are supported in alignment with the ladder cords, In the horizontal blind, comprising a plurality of lifting cords that are suspended from the head box and capable of raising and lowering the slats, and the lifting cords are disposed at positions offset from the center in the front-rear direction of the slats.
It has a plurality of lifting drums that rotate in conjunction with the rotation of the rotating shaft, and one end of the lifting cord is connected to the lifting drum so that it can be wound and unwound.
At least one notch is formed in at least one side edge of the slat, and at least one lifting cord is inserted between the wall of the notch formed in the slat and the vertical cord, The elevating cord disposed on the side edge side is located outside the side edge of the slat and is arranged along the vertical cord of the ladder cord.

  Furthermore, the notch is formed on a side edge facing upward of the inclined slat when raising the slat and facing downward of the inclined slat when lowering the slat.

  According to the present invention, by allowing the lifting / lowering cord to be wound and unwound by the lifting / lowering drum, when manually rotating the rotary shaft that rotationally drives the lifting / lowering drum, the lifting / lowering cord is directly pulled down compared to the operation of pulling the lifting / lowering cord directly Thus, since the operation load is reduced, the present invention can be applied to a blind having a large product size and a heavy weight.

  Further, the elevating drum can be rotated by electrically rotating the rotating shaft. In this case, it is not necessary to manually wind and unwind the lifting / lowering cord on the lifting / lowering drum, so that the operation becomes easy, and it is difficult to manually operate the mounting position where it is difficult to reach. It can also be applied to certain blinds.

  By disposing the lifting / lowering cord so as to pass between the wall surface of the notch and the vertical cord, the lifting / lowering cord is engaged with the notch and the slat can be prevented from shifting in the horizontal direction.

  In addition, at least in the uppermost slat, the lifting / lowering cord is arranged so as to be located outside the side edge of the slat, so that the lifting / lowering cord disposed at a position offset from the center in the front-rear direction of the slat is removed from the head box. When the cable is suspended and inserted between the wall of the notch of the slat and the vertical cord, the bending of the lifting / lowering cord is reduced, and interference between the lifting / lowering cord and the middle cord of the ladder cord is avoided. Can be prevented from breaking.

  A notch is formed at one edge of the slat, and the lifting cord arranged on the other edge side is arranged outside the edge of the slat, so that the slat can be used as the middle cord of the ladder cord during assembly. It can be easily inserted. Further, when the slat is moved up and down, there is no fear that the elevating cord and the ladder cord enter the notched portion together or the corner portion of the notched portion is caught, and a smooth elevating operation can be performed.

It is a front view which shows the slat horizontal and fully open state of the horizontal blind concerning 1st Embodiment of this invention. It is a front view which shows the slat full closed state of the horizontal blind which concerns on 1st Embodiment of this invention. (A) is a sectional side view of the first lifting drum portion when the slat is horizontally and fully opened according to the first embodiment, and (b) and (c) are the first when the slat is fully closed and lifted according to the first embodiment. It is side sectional drawing of the 1 raising / lowering drum part. (A) is a sectional side view of the second lifting drum part when the slat is horizontal according to the first embodiment, and (b) and (c) are the second lifting and lowering when the slat is fully closed and lifted according to the first embodiment. It is a sectional side view of a drum part. It is a top view which shows the state of the raising / lowering code | cord | chord, ladder code | cord | chord, and notch part in the uppermost stage slat of 1st Embodiment. It is a top view which shows the state of the raising / lowering code | cord | chord, the ladder code | cord | chord, and a notch part in the downward slat of 1st Embodiment. (A) is a fragmentary perspective view which shows the state of the notch part vicinity in the horizontal state of the slat which concerns on 1st Embodiment, (b) is a part which shows the state of the notch part vicinity at the time of the slat fall based on 1st Embodiment It is a perspective view and (c) is a fragmentary perspective view which shows the mode of the notch part vicinity at the time of the slat raise which concerns on 1st Embodiment. It is a top view which shows the other embodiment of a cyclic | annular part. It is a top view which shows other embodiment of a cyclic | annular part. It is a fragmentary perspective view which shows the slat horizontal and full open state of the horizontal blind which concerns on other embodiment. It is a fragmentary perspective view showing interference with a notch and a ladder code.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
1 to 7 show a first embodiment of the present invention.
An endless operation cord (operation unit) 14 is suspended from one end of the head box 10 fixed to the window frame or the like by the bracket 11, and the operation cord 14 is a pulley (operation unit) disposed in the head box 10. 15 is wound around and can be rotated. The rotation of the pulley 15 can be transmitted to the rotary shaft 12 rotatably supported in the head box 10 via a clutch. The clutch prevents rotation from the rotating shaft 12 and transmits only the rotation from the pulley 15 to the rotating shaft 12. The rotary shaft 12 is provided with three elevating drums 20 that rotate in conjunction with the rotation of the rotary shaft 12 at intervals in the left-right direction of the head box 10.

  Ladder cords 16 are suspended below the head box 10 from the position where each lifting drum 20 is disposed, and each ladder cord 16 is tilted in conjunction with rotation within a predetermined range angle of the rotary shaft 12. . Each ladder cord 16 is installed between the front and rear vertical cords 16a and 16b that hang down at a predetermined interval in the front-rear direction of the head box 10, and the front and rear vertical cords 16a and 16b at a predetermined interval in the vertical direction. And the middle cord 16c. Each middle cord 16c further comprises a pair of upper and lower cords that are slightly separated from each other.

  The ladder cord 16 supports a large number of slats 18 in an aligned state by inserting the slats 18 between the upper and lower cords of the middle cords 16c, and the lower end of the ladder cord 16 is the bottom of the slats 18 located at the lowest step. It is fixed to the bottom rail 24 arranged below. Preferably, the vertical relationship of the upper and lower cords of each middle cord 16c is reversed to form a pair of crossing portions, and the slats 18 are inserted between the pair of crossing portions.

  One end of the lifting / lowering cord 22 is connected to each lifting / lowering drum 20 so that winding / unwinding is possible. The other end of the lifting / lowering cord 22 hangs down from the head box 10, passes through a position offset from the center portion in the front-rear direction of the slat, and is connected to the bottom rail 24.

  The elevating drum 20 includes a drum portion 26 in which one end of the elevating cord 22 is coupled so as to be wound and unwound, and a drum receiver 28 that rotatably supports the drum portion 26 and is fixed to the head box 10. Is done. Ladder cord guide portions 28a and 28b for restricting the front and rear vertical cords 16a and 16b to pass through the drum receiver 28 and to prevent the front and rear vertical cords 16a and 16b from opening in the front-rear direction by a predetermined amount or more. Is formed. Also, a first lifting / lowering cord guide portion that guides the distribution of the lifting / lowering cord 22 while the lifting / lowering cord 22 is inserted outside the ladder cord guide portions 28a and 28b of the drum receiver 28 in the front / rear direction of the head box 10. 28c and the 2nd raising / lowering cord guide part 28d are each formed. The lifting / lowering cord guide portions 28c and 28d can surely suspend the lifting and lowering cord 22 to a position offset from the center of the slat 18 in the front-rear direction, and the ladder cord guide portions 28a and 28b cannot force the ladder cord 16. The lifting / lowering cord 22 can be disposed at a position offset from the central portion in the front-rear direction of the slat 18 without applying any force. Even when the diameter of the elevating drum 20 is large, the ladder cord guide portions 28a and 28b can narrow the interval between the vertical cords 16a and 16b before and after the ladder cord 16 to improve the rotation of the slats 18.

  Below, arrangement | positioning of the three raising / lowering drums 20, distribution of the three raising / lowering cords 22, and the connection to each raising / lowering drum 20 are demonstrated.

  The lifting / lowering cords 22 arranged outside the left and right end portions of the head box 10 are arranged and connected to the lifting / lowering drum 20 like the first lifting / lowering cord 22a and the first lifting / lowering drum 20a shown in FIG. The first lifting / lowering cord 22a is arranged along the rear vertical cord 16b of the front and rear vertical cords 16a and 16b, and one end of the first lifting / lowering cord 22a is disposed on the rear side of the drum receiver 28. After being guided upward through the guide portion 28c, it is connected to the drum portion 26 of the first elevating drum 20a so as to be wound in one direction.

  The portion of the first lifting / lowering cord 22a that hangs down from the head box 10 extends from the uppermost slat 18 to several slats 18 in the middle of the slat 18 row in the vertical direction as shown in FIG. A loop-like part (annular part) 16d that protrudes further rearward from the connecting part of each of the 16b middle cords 16c is inserted. Further, as shown in FIG. 6, the first elevating cord 22 a extends from a midway position in the vertical direction of the slat 18 row to the lower end portion at a notch portion 18 a formed in the vicinity of both end portions of the rear side edge of the slat 18. Each is inserted and arranged so as to be inserted between the wall surface of the notch 18a and the vertical cord 16b.

  On the other hand, the lifting / lowering cord 22 disposed inside the left / right center of the head box 10 and the connection to the lifting / lowering drum 20 are as shown in the second lifting / lowering cord 22b and the second lifting / lowering drum 20b shown in FIG. . The portion of the second lifting / lowering cord 22b that hangs down from the head box 10 is disposed along the front vertical cord 16a, and a loop-like portion (annular) that protrudes further forward from the connecting portion of each of the vertical cords 16a with the middle cord 16c. Part) 16e. As shown in FIG. 6, the notch part 18a is not formed in the front side edge of the slat 18, and the 2nd raising / lowering cord 22b penetrates the loop-shaped part 16e from the upper end to the lower end of the vertical cord 16a. One end of the second lifting / lowering cord 22b is guided upward through the second lifting / lowering cord guide portion 28d on the front side of the drum receiver 28, and then wound in the same direction as the first lifting / lowering cord 22a. It is connected to the drum portion 26 of the lifting drum 20b.

  As a result, the first lifting / lowering cord 22a and the second lifting / lowering cord 22b are moved to the respective lifting / lowering drums 20a and 20b by the first lifting / lowering drum 20a and the second lifting / lowering drum 20b rotating in the same direction by the rotation of the rotary shaft 12. It is wound up or unrolled at the same time.

  As described above, the first elevating cord 22a is positioned along the rear vertical cord 16b, and the slat 18 extends from the uppermost slat 18 to the slat 18 in the middle of the slat 18 row in the vertical direction. The loop-shaped part 16d outside the side edge of the slat 18 is inserted, and the middle part in the vertical direction of the slat 18 row to the lower end part is located between the wall surface of the notch part 18a and the vertical cord 16b on the rear side. Thus, the first lifting / lowering cord 22a is inserted into the notch 18a and passes between the wall surface of the notch 18a and the rear vertical cord 16b. Therefore, the notch 18a, the first lifting / lowering cord 22a and the rear side It is difficult to disengage from the vertical cord 16b. Therefore, since the horizontal movement of the slat 18 is restricted by the notch 18a and the first lifting / lowering cord 22a, the horizontal displacement of the slat 18 can be more reliably prevented.

  Further, since the first elevating cord 22a is not inserted into the notch 18a from the uppermost slat 18 to some slats 18 in the middle of the slat 18 row in the vertical direction, instead of FIG. As shown in FIG. 2, a slat clip 30 for fixing the slat 18 and the ladder cord 16 is preferably provided, and the slat clip 30 can prevent the slat 18 from being displaced in the horizontal direction.

  Next, the operation of the horizontal blind according to the first embodiment will be described.

  First, in order for the slat 18 to rotate from the horizontal fully open state as shown in FIG. 1 to the fully closed state shown in FIG. 2, the pulley 15 is driven to rotate by pulling down the rear side of the operation cord 14. The rotating shaft 12 is rotated clockwise in FIGS. 3 (a) and 4 (a). As a result, as shown in FIGS. 3B and 4B, the vertical cord 16b on the rear side is lowered, the vertical cord 16a on the front side is raised, the ladder cord 16 is tilted, and each slat 18 is moved. Since it inclines, the slat 18 can be made into a fully closed state.

  When the slat rotates, as shown in FIG. 3B, the first elevating cord 22a suspended from the head box 10 is located behind the vertical cord 16b on the rear side until the middle position in the vertical direction of the slat 18 row. As shown in FIG. 7 (b), the vertical cord 16b gradually approaches the vertical cord 16b, and from the middle position in the vertical direction of the slat 18 row to the lower end, it contacts the wall surface of the notch 18a. It touches.

  Since the first lifting / lowering cord 22a suspended from the head box 10 asymptotically approaches the ladder cord 16 in this way, interference between the first lifting / lowering cord 22a and the middle cord 16c is avoided, and the middle cord 16c is lifted when the slat is lifted / lowered. Breakage can be prevented.

  On the other hand, in the uppermost slat 18, if the first elevating cord 22 a suspended from the head box 10 is inserted into the notch 18 a like the lower slat 18, the first elevating cord 22 a is bent. Becomes larger. Therefore, when the first lifting / lowering cord 22a moves during slat lifting / lowering, bending resistance may occur between the first lifting / lowering cord 22a and the middle cord 16c, and the middle cord may be broken.

  In the present invention, at least in the uppermost slat, the first lifting / lowering cord 22a avoids the interference with the middle cord 16c of the ladder cord 16, so that the middle cord 16c can be prevented from being broken. The first elevating cord 22a may be inserted through the loop-shaped portion 16d only in the uppermost slat 18. However, in order to make the first elevating cord 22a asymptotically smoothly approach the vertical cord 16b, the uppermost slat 18 In the plurality of slats 18 including the first lifting / lowering cord 22a, the loop-shaped portion 16d may be inserted.

  In the slat 18 below the midway position in the vertical direction of the slat 18 row, the wall surface of the notch 18a can be rotated until the first lifting cord 22a comes into contact with the slat 18, so that the rotability can be improved. Further, since the first elevating cord 22a and the rear vertical cord 16b are inserted into the cutout portion 18a, the slat 18 can be prevented from shifting in the left-right direction.

  Further, as shown in FIG. 1, the pulley 15 is driven to rotate by operating the slat 18 to pull down the front side of the operation cord 14 from the horizontal fully opened state, and the rotary shaft 12 is rotated in FIGS. 3 (a) and 4 (a). When rotated counterclockwise, as shown in FIGS. 3C and 4C, the rear vertical cord 16b rises and the front vertical cord 16a descends and the ladder cord 16 tilts. Since each slat 18 is inclined, the slat 18 can be fully closed.

  Next, when the slat 18 is lowered, an operation of pulling down the rear side of the operation cord 14 is performed so that the slat 18 is fully closed and the ladder cord 16 cannot follow any further rotation. By continuing the operation of continuously pulling down the rear side of the operation cord 14, the first lifting drum 20a and the second lifting drum 20b unwind the first lifting cord 22a and the second lifting cord 22b, respectively. Thereby, the 1st raising / lowering cord 22a goes down via the 1st raising / lowering cord guide part 28c, and the 2nd raising / lowering cord 22b goes down via the 2nd raising / lowering code guide part 28d, respectively. For this reason, the 1st raising / lowering cord 22a and the 2nd raising / lowering cord 22b can lower the bottom rail 24, and the slat 18 can be lowered | hung with this.

  Further, in order to raise the slat 18, the operation is continued even after the front side of the operation cord 14 is pulled down and the slat 18 is fully closed and the ladder cord 16 cannot follow any further rotation. By continuing the operation of pulling down the front side of the operation cord 14, the first elevating drum 20a and the second elevating drum 20b wind the first elevating cord 22a and the second elevating cord 22b, respectively. As a result, the first lifting / lowering cord 22a goes up and down via the first lifting / lowering cord guide portion 28c, and the second lifting / lowering cord 22b goes up and down via the second lifting / lowering cord guide portion 28d. For this reason, the 1st raising / lowering cord 22a and the 2nd raising / lowering cord 22b can raise the bottom rail 24, and can fold and raise the slat 18 in connection with this.

  As shown in FIGS. 3B and 4B, the slat 18 tilts and descends so that the notch 18a faces downward as shown in FIGS. 3B and 4B, and as shown in FIGS. 3C and 4C, it rises. As shown in FIG. 4, the slat 18 is inclined and raised so that the notch 18a faces upward, so that the first elevating cord 22a and the rear vertical cord 16b enter the notch 18a together, or the notch 18a. There is no fear of a problem such as catching on the corner of the slab, and a smooth lifting operation can be performed.

  On the other hand, if the slat is tilted and lifted so that the notch is directed downward when the slat is raised, the slack portion of the vertical cord of the ladder cord is the lifting cord as shown in FIG. In some cases, it may enter the space between the cutout portions, and the loosened and folded portions may catch on the corner portions of the cutouts. Therefore, if the lowering operation is performed in that state, the catches will not be removed because the notch is facing upward, and the slats will be lowered and the lowering operation will continue. There is a risk that the slat will descend with the left and right balance being uneven.

  However, in the present embodiment, the ladder code is not caught at the time of ascent, so that such a problem can be avoided.

  Thus, by operating the operation cord 14, the lifting / lowering cords 22a and 22b are wound or unwound on the lifting drums 20a and 20b, and the slats 18 are moved up and down, so that the operation load can be reduced.

  Further, the lifting / lowering cord 22 can be disposed at a position offset from the central portion of the slat 18 in the front-rear direction, and the first lifting / lowering cord 22a and the second lifting / lowering cord 22b are disposed before and after the slat 18, so In this case, the entire slat 18 and the bottom rail 24 can be balanced. Since the lifting / lowering cord 22 is disposed along the vertical cords 16a and 16b of the ladder cord 16, it is not necessary to provide the lifting / lowering cord insertion hole in the slat 18, and light leakage when the slat is fully closed can be prevented.

  In the above example, the number of the lifting drums 20 and the lifting cords 22 is three. However, the present invention is not limited to this, and may be two, four, or more.

  Moreover, the notch part 18a can also be provided only in one place in the side edge of one side of each slat 18. FIG. Further, the notch portion 18a is formed only on one side edge of the front side and the rear side of the slat 18, and the elevating cord 22 is formed between the wall surface of the notch portion formed on the one side edge and the vertical cord. The lifting cord 22 may be positioned outside the side edge of the slat 18 on the other side of the slat 18. This makes it difficult for the ladder cord 16 to be caught in the notch 18 a during assembly, and the slat 18 can be easily inserted into the middle cord 16 c of the ladder cord 16.

  Further, even when a plurality of notches 18a are provided (may be provided on both or one of the front and rear side edges of the slat 18), the ascending / descending between all the notches 18a, the vertical cords 16, and the notches 18a. There is no need to insert the cord 22, and it is only necessary to insert the lifting / lowering cord 22 between the vertical cord 16 and the notch 18a at one cutout portion 18a. Alternatively, it may be inserted through the loop-shaped part.

(Other embodiments)
8 and 9 show another embodiment of the annular portion through which the lifting / lowering cord 22 is inserted.

  In FIG. 8, an annular portion (annular portion) 30a is formed on a slat clip 30 for fixing the slat 18 and the ladder cord 16, and the ladder cord 16 is located near the slat 18 of the annular portion 30a. The elevating cord 22 is positioned at a position farther from the slat 18 than the ladder cord 16.

  9, the S-shaped connecting member (annular portion) 32 is attached to the middle cord 16c instead of the loop-like portion 16d, and the two spaces 32a and 32b of the connecting member 32 are close to the slat 18. The vertical cord 16b is inserted and attached to the space 32a, and the elevating cord 22 is inserted to the space 32b far from the slat 18.

  FIG. 10 shows yet another embodiment. In this embodiment, among the portions of the first elevating cord 22a that are suspended from the head box 10, the loop portion 16d is inserted through the portion from the uppermost slat 18 to the slat 18 in the middle of the slat row 18 in the vertical direction. The other configurations are the same as those of the first embodiment except that they are arranged while being wound around the vertical cord 16b on the rear side.

  As a result, when the slat 18 rotates, the first elevating cord 22a is bent from the head box 10 to the middle position in the vertical direction, so that the middle cord 16c is broken by the movement of the first elevating cord 22a. This can be prevented.

  In the above-described embodiment, the rotating shaft 12 is manually driven to rotate. However, the present invention is not limited to this, and the rotating shaft 12 is connected to an electric motor to be driven to rotate electrically. It can also be configured. By using an electric motor in this way, manual operation can be made unnecessary, and for blinds and the like that are in an installation position where they cannot be easily reached such as high places where electric operation is difficult. Can also be applied.

10 Head box 12 Rotating shaft 16 Ladder cord 16a, 16b Vertical cord 16c Middle cord 16d Loop-like part
18 Slat 18a Notch 20 Lifting drum 20a First lifting drum (lifting drum)
20b Second elevating drum (elevating drum)
22 Lift code 22a First lift code (lift code)
22b Second elevating cord (elevating cord)
30 slat clip 30a annular part 32 connecting member (annular part)

Claims (6)

A rotary shaft (12) rotatably supported in the head box (10), a plurality of ladder cords (16) tilting in conjunction with rotation of the rotary shaft, and a number of ladder cords supported in alignment with the ladder cords A horizontal type comprising a slat (18) and a plurality of elevating cords (22) suspended from the head box and capable of elevating and lowering the slats, wherein the elevating cords are disposed at positions offset from the center in the front-rear direction of the slats In the blinds
The ladder cord is composed of front and rear vertical cords (16a and 16b) and a middle cord (16c) made up of a pair of cords laid between the front and rear vertical cords, and a slat between the pair of middle cords (16c). Is inserted,
Vertical cords (16a, 16b) before and after the ladder cord are suspended from the head box and provided so as to move up and down in conjunction with the rotation of the rotating shaft,
A notch (18a) is formed in at least one side edge of the slat, and one of the vertical cords (16a, 16b) is arranged along the notch,
With respect to the position corresponding to the side edge of the slat disposed immediately below the head box, the vertical cord (22a) is positioned outside the side edge of the slat in a state where the slat is horizontal. 16b), the slats are arranged so as to approach the vertical cord (16b) away from the vertical cord (16b) when the slats are rotated. It is introduced between the pair of cords of the middle cord between the wall surface and the vertical cord, and further, the lower slat is arranged so as to be inserted between the wall surface of the notch portion of each slat and the vertical cord. Horizontal blinds characterized by A rotary shaft (12) rotatably supported in the head box (10), a plurality of ladder cords (16) tilting in conjunction with rotation of the rotary shaft, and a number of ladder cords supported in alignment with the ladder cords A horizontal type comprising a slat (18) and a plurality of elevating cords (22) suspended from the head box and capable of elevating and lowering the slats, wherein the elevating cords are disposed at positions offset from the center in the front-rear direction of the slats In the blinds
The ladder cord consists of front and rear vertical cords (16a, 16b) and a middle cord (16c) installed between the front and rear vertical cords, and the slats are supported by the middle cord (16c).
Vertical cords (16a, 16b) before and after the ladder cord are suspended from the head box and provided so as to move up and down in conjunction with the rotation of the rotating shaft,
A notch (18a) is formed in at least one side edge of the slat, and one of the vertical cords (16a, 16b) is arranged along the notch,
With respect to the position corresponding to the side edge of the slat disposed immediately below the head box, the vertical cord (22a) is positioned outside the side edge of the slat in a state where the slat is horizontal. 16b), in the state where the slat is rotated, the middle cord is arranged in a lower slat other than the slat arranged asymptotically from a position separated from the vertical cord (16b) in a state where the slat is rotated. It is introduced between the wall surface of the notch portion and the vertical cord while being in contact with each other, and is further arranged to be inserted between the wall surface of the notch portion of each slat and the vertical cord in the lower slat. A horizontal blind.   The slat disposed directly under the head box is provided with an annular portion (16d, 30a, 32) located outside the slat, and at least one lifting cord is inserted directly under the head box after passing through the annular portion. The horizontal blind according to claim 1 or 2, wherein a lower slat other than the provided slat is arranged so as to be inserted between the wall surface of the notch and the vertical cord.   The horizontal blind according to claim 3, wherein the annular portion (16d) is provided outside the slat from a connecting portion between the vertical cord (16b) of the ladder cord and the middle cord (16c).   The horizontal blind according to claim 3, wherein the annular portion (30a) is formed in a slat clip (30) for fixing the slat and the ladder cord. The cutout portion is formed on a side edge facing upward of an inclined slat when raising the slat and facing downward of the inclined slat when lowering the slat. The horizontal blind according to any one of Items 5 to 5.