JP6655262B2 - Horizontal blinds - Google Patents

Description

  The present invention relates to a horizontal blind capable of moving up and down a plurality of slats using a lifting cord.

  The horizontal blind is capable of adjusting the amount of solar radiation taken into the room by raising and lowering and tilting a multi-stage slat supported by a ladder cord suspended from the head box using a lifting cord .

  For example, a bottom rail is disposed at the lower end of the ladder cord, and a lifting cord attached to the bottom rail is drawn into and out of the head box, thereby raising and lowering the bottom rail, thereby increasing the number of steps. The slat can be raised and lowered.

  By the way, in a horizontal blind that can perform the operation of lifting and lowering and tilting with one drive shaft, when the slat is raised and lowered in a tilted state, the lifting and lowering cord is inserted into the insertion hole of the slat through which the lifting cord is inserted and the edge of the notch. There is a problem that it may be rubbed and moved, causing wear on the lifting cord.

  In order to solve this problem, there has been disclosed a configuration in which a connecting gear mechanism intended to guide the operation of a ladder code to a predetermined sequence is provided in an operating device so that a slat can be moved up and down in a horizontal state ( For example, see Patent Document 1).

Japanese Patent Publication No. 51-029346

  As described above, when the slats are moved up and down in a state where the slats are tilted in the horizontal blind that allows the operation of up / down / tilt with one drive shaft, the up / down cords rub against the edges of the insertion holes and the notches of the slats. There is a problem that it moves and causes abrasion.

  Therefore, in the technique of Patent Document 1, a slat can be moved up and down in a horizontal state by providing a connecting gear mechanism in the operating device intended to guide the operation of the ladder code to a predetermined sequence. Can be reduced. By raising and lowering the slat 4 from the open state at a slat angle that is not fully closed (including horizontal), there is also an advantage that the degree of light blocking does not suddenly change at the start of lifting and lowering.

  Although the slats can be raised and lowered in a horizontal state as described above, it is effective for the durability of the lifting cord, but in the technique of Patent Literature 1, the configuration of the operating device is complicated by the connecting gear mechanism and the cost is high. It will be.

  An object of the present invention is to provide a horizontal blind which can be raised and lowered in a state where the slat angle is not fully closed and which can reduce the cost, in view of the above problems.

The horizontal blind of the present invention is a horizontal blind capable of raising and lowering a plurality of slats by using a lifting cord, one end of the lifting cord is attached, and the rotation of the drive shaft enables the slats of the multistage to be raised and lowered. A winding shaft that rotates and winds or unwinds the elevating cord, and a ring that is attached to the winding shaft so as to be rotatable relative to the winding shaft, and one end is attached to the winding shaft. The other end of the raised / lowered cord is suspended through a slit or a hole provided in the ring and attached to a bottom rail, and one end of a ladder cord for suspending and supporting the multi-stage slats is directly or directly connected to the ring. Indirectly attached, and the other end of the ladder cord is attached to the bottom rail, allowing rotation of the ring in accordance with the rotation of the winding shaft near the lower limit position of the bottom rail, Lower limit of rail Except in the vicinity of which is attached the ring to the winding shaft to a non-permitting rotation of said ring, as the load tension due to the weight of the bottom rail of the lift cord bottom rail outside the vicinity of the lower limit position In addition, when the bottom rail is near the lower limit position, the lifting cord is configured to be in a no-load state with respect to the tension due to the weight of the bottom rail .

  Further, in the horizontal blind of the present invention, the tension due to the weight of the bottom rail is applied as a load of the elevating cord when the bottom rail is other than near the lower limit position, and the tension due to the weight of the bottom rail when the bottom rail is near the lower limit position. The lifting cord is configured to be in a no-load state.

  Further, the horizontal blind of the present invention is characterized in that when tension is applied to the lifting cord, the rotation state of the slat is set to a horizontal state.

Further, in the horizontal blind according to the present invention, when the bottom rail near the lower limit position is lifted, a tension due to a weight of the bottom rail starts to be applied as a load of the lifting cord through the slit or the hole. Is rotated, whereby the multi-stage slats suspended and supported by the ladder cord are in a horizontal state, and the bottom rail is raised .

  Further, the horizontal blind of the present invention is characterized by further comprising tilt stopper means for restricting a rotation range of the ring to restrict a tilt range of the multi-stage slat.

  Advantageous Effects of Invention According to the present invention, in a horizontal blind capable of operating up / down / tilt with one drive shaft, it is possible to raise / lower the slat angle in a state where the slat angle is not fully closed, thereby increasing the durability of the up / down cord and reducing the cost. Becomes possible.

It is a front view showing the schematic structure of the horizontal blind of one embodiment by the present invention. It is an exploded perspective view showing the schematic structure of the cord support device in the horizontal blind of one embodiment by the present invention. (A), (b), and (c) are a front view and a cross-sectional side view showing a schematic configuration of a cord support device in a horizontal blind according to an embodiment of the present invention, respectively, and a diagram for simply describing the structure. It is sectional front view. It is a sectional side view at the time of raising and lowering operation of the slat in the horizontal blind of one embodiment by the present invention. (A), (b), (c) is a sectional side view of a horizontal state, a fully closed state, and a reverse fully closed state of a slat at a lower limit position in a horizontal blind of an embodiment according to the present invention, respectively. It is sectional side view of the horizontal blind of the modification by this invention.

  Hereinafter, with reference to the drawings, a description will be given of an example of a horizontal blind that enables a slat lifting operation by a lifting code and a slat tilt operation by a ladder code by rotating one drive shaft. In the specification of the present application, with respect to the front view of the horizontal blind shown in FIG. 1, the upper side and the lower side in the drawing are referred to as an upper direction (or upper side) and a lower direction (or lower side), respectively, according to a slat suspension direction. The left direction in the figure is defined as the left side of the horizontal blind, and the right direction in the figure is defined as the right side of the horizontal blind. When the side on which the front view of FIG. 1 is viewed is referred to as the front side (indoor side) and the opposite side is referred to as the rear side (or outdoor side), and referred to as the front-back direction of the horizontal blind, the illustration in the front view of FIG. The direction perpendicular to the plane.

(Structure of horizontal blind)
FIG. 1 is a front view showing a schematic configuration of a horizontal blind of one embodiment according to the present invention. The horizontal blind shown in FIG. 1 has a multi-stage slat through a pair of ladder cords 9 hanging from the cord support devices 5 disposed on the left end side and the right end side of the head box 1 to the indoor side and the outdoor side, respectively. 4 are suspended and supported, and a bottom rail 8 is suspended and supported at the lower end of each ladder cord 9. The head box 1 is fixed to a ceiling-side mounting surface via a bracket 6.

  In addition, from each of the cord supporting devices 5, a lifting cord 10 is suspended at a substantially central portion in the front-rear direction on the lower surface of the head box 1, and a lower end of each lifting cord 10 is provided at a substantially central portion in the front-rear direction of each slat 4. It is attached to the bottom rail 8 through the insertion hole (not shown).

  An operation unit 3 is provided on the right end side of the head box 1. For example, if the operation unit 3 is a manual type, the operation unit 3 includes a pulley that has an uneven outer peripheral groove so that an operation code (for example, an endless ball chain, a string, or the like) can be mounted thereon and that can rotate the drive shaft 11. can do. Alternatively, if the operation unit 3 is, for example, an electric motor, the operation unit 3 may be an electric motor that rotates based on an operation signal from the outside and enables the drive shaft 11 to be rotationally operated. The central axis of the pulley or the electric motor constituting the operation unit 3 is configured to be rotatable in accordance with an operation by an operator. Therefore, the form of the operation unit 3 can be any form as long as the form can be transmitted to the rotation of the drive shaft 11 according to the operation by the operator.

  Note that a stopper device (not shown) can be provided for the drive shaft 11. This stopper device has a known function of locking the rotation of the drive shaft 11 so as to prevent the lifting cord 10 from moving by the weight of the bottom rail 8 and the slat 4.

  As will be described later with reference to FIGS. 2 and 3, a winding shaft 51 in which the upper end of the lifting cord 10 having the lower end attached to the bottom rail 8 is windably attached to the case portion 56 of the cord support device 5. Are rotatably supported, and the drive shaft 11 is inserted through the winding shaft 51 so as to be relatively non-rotatable. The winding shaft 51 is configured to move relative to the case portion 56 in the axial direction when rotated with the rotation of the drive shaft 11.

  Further, the case portion 56 of the cord supporting device 5 supports a tilt case 52 that can accommodate the winding shaft 11.

  The drive shaft 11 is inserted into the tilt case 52 so as to be relatively non-rotatable, but a suspension member 53 that supports each upper end of each ladder cord 9 hanging from the indoor side and the outdoor side is rotatably supported. ing. When the suspension member 53 is rotated in the same direction as the drive shaft 31, one of the warps of the ladder cord 9 is pulled up and the other is lowered, thereby rotating the slat 4. However, as described later, the rotation range and the rotation condition of the suspension member 53 are regulated by the ring 54 and the tilt stopper 56e. Hereinafter, more specifically, the structure of the cord support device 5 will be described in detail later.

(Cord support device)
FIG. 2 is an exploded perspective view showing a schematic configuration of the cord support device 5 in the horizontal blind of the present embodiment. 3 (a), 3 (b) and 3 (c) are a front view and a sectional side view, respectively, showing a schematic configuration of a cord support device 5 in a horizontal blind according to an embodiment of the present invention. It is sectional front view for demonstrating in FIG.

  The cord supporting device 5 includes a lifting cord 10 and a ladder cord 10 that enable the lifting operation by the lifting cord 10 by the rotation of one drive shaft 11 and the tilt operation of the slat 4 by the ladder cord 9 near the lower limit position of the bottom rail 8. 9, which mainly includes a winding shaft 51, a tilt case 52, a hanging member 53, a ring 54, and a case portion 56.

  The take-up shaft 51 has the drive shaft 11 inserted through a shaft hole 51 a provided on the center axis of the substantially cylindrical main body so as not to rotate relatively, and suspends the bottom rail 8 provided at the lower stage of the plurality of slats 4. The lifting / lowering cord 10 to be supported is wound up or rewindably attached, and the bottom rail 8 is moved up and down so that the bottom rail 8 and each slat 4 can be moved up and down.

  More specifically, the upper end of the elevating cord 10 is attached to the cord attachment portion 51 c of the winding shaft 51, and a concave portion of a spiral screwing ridge 51 b formed on the peripheral surface of the winding shaft 51. And the lifting cord 10 can be wound up. The spiral thread 51b can be screwed with the spiral thread 56f on the inner peripheral surface of the bearing portion 56a provided in the case portion 56. When the drive shaft 11 rotates with the rotation thereof, the drive shaft 11 relatively moves in the axial direction with respect to the case portion 56.

  The ring 54 has its inner peripheral surface supported by the outer peripheral surface of a bearing portion 56 a provided in the case portion 56, and is rotatable relative to the winding shaft 51. The ring 54 is provided with a slit portion 54c that passes through the lifting cord 10 and is led out while being mounted on the bearing portion 56a. The bearing portion 56a of the case portion 56 is also provided with an insertion hole 56g through which the lifting cord 10 is passed and led out. The insertion hole 56g is provided in a rotation range of the ring 54 that rotates the elevating cord 10 led out to the slit portion 54c and in a range sufficient to hang down without resistance. On the other hand, two groove-shaped concave portions 54b are provided on the outer peripheral surface of the ring 54, and projecting pieces 54a protruding from the outer peripheral surface are formed adjacent to the respective concave portions 54b.

  In the tilt case 52, the drive shaft 11 is inserted into a shaft hole 52a provided on the center axis of the substantially cylindrical main body so as to be relatively non-rotatable, and the winding shaft 51 can be housed inside the main body. . That is, the tilt case 52 has a function of preventing the displacement of the elevating cord 10 wound on the winding shaft 51 while accommodating the winding shaft 51 relatively moving with the rotation of the drive shaft 11. Thus, the elevating cord 10 having the upper end attached to the cord attaching portion 51c of the winding shaft 51 is provided on the bearing portion 56a of the case portion 56 while being wound on the peripheral surface of the winding shaft 51. After passing through the insertion hole 56g, it is led out to the slit portion 54c of the ring 54 and hangs down (see FIGS. 3B and 3C).

  Further, the tilt case 52 is configured so that the suspension member 53 can be mounted thereon. More specifically, a spring groove 52b that allows the hanging member 53 to be mounted is formed in the tilt case 52, and the hanging member 53 mounted in the spring groove 52b is prevented from being displaced in the axial direction. It has become. Further, the tilt case 52 is supported by the bearing portion 56b of the case portion 56 by a support groove 52c formed adjacent to the spring groove 52b. Therefore, the suspension member 53 is disposed close to the ring 54 and accommodated in the case portion 56 (see FIG. 3A).

  The suspension member 53 is configured to support each upper end of the ladder cord 9 that suspends and supports the plurality of slats 4 from both front and rear sides. More specifically, the suspension member 53 is formed of a torsion coil spring bent in an annular shape having elasticity, and the upper ends of the front and rear ladder cords 9 are provided at both ends of the torsion coil spring. A pair of engaging portions 53a that can be engaged are formed, and each tip of the pair of engaging portions 53a is bent at a right angle along the center axis direction of the torsion coil spring to form a pair of engaging ends. 53b are formed. Then, a pair of engaging ends 53b are engaged with groove-shaped concave portions 54b provided at two places by rings 54 arranged close to each other. In this example, the recess 54b is configured to be able to engage with the engaging end 53b in a mode having a predetermined amount of play, but it is not always necessary to provide such a predetermined amount of play.

  When the pair of engaging ends 53b of the suspending member 53 engage with the concave portions 54b of the ring 54 and the suspending member 53 is mounted on the tilt case 52 (see FIG. 3B), the engaging ends When a force directed to the tightening direction is acting on 53b, the same rotation as the tilt case 52 is performed, and when a force directed to the opening direction is acting on the engagement end 53b, the tilt case 52 acts to idle. .

  Here, a tilt stopper 56e protruding inward is formed at the top of the side wall of the case portion 56 on the winding shaft 51 side. When the tilt stopper 56e is accommodated in the case portion 56 in a state where the ring 54 and the suspending member 53 are arranged close to each other, the tilt stopper 56e The tilt stopper 56e functions as a part that restricts the rotation range of the ring 54.

  In addition, an insertion hole 56c is provided at the bottom of the case portion 56 so that the elevating cord 10 derived from the winding shaft 51 through the slit portion 54c of the ring 54 can hang down to the bottom rail 8. A pulley 56d for guiding the lifting cord 10 is provided in the insertion hole 56c in order to facilitate the lifting operation of the lifting cord 10. The ladder cords 9 on the front and rear sides are also hung down through the insertion holes 56c, so that the insertion holes 56c function as cord outlets of the cord support device 5.

  By the way, since the lower end of the lifting cord 10 is attached to the bottom rail 8, the tension of the bottom rail 8 and the stacked slats 4 due to their own weights is always constant except when the bottom rail 8 is near the lower limit position. It has been added as a load. Therefore, when the bottom rail 8 rises from the position near the lower limit position and a sufficient tension acts on the lifting cord 10, the lifting cord 10 rotates the ring 54 and acts so that the slat 4 becomes horizontal. 4. As shown in FIG. 5 (a), the slats 4 can be moved up and down while the slats 4 are maintained in a horizontal state.

  When the bottom rail 8 is in the state near the lower limit position, that is, when the bottom rail 8 is supported by the finite length of the ladder cords 9 on the front and rear sides, the lifting cord 10 has a sufficiently small load with respect to the tension related to its own weight of the bottom rail 8. (In the present specification, such a state is referred to as “no-load state”) (see FIG. 5A). That is, in the specification of the present application, the “no load state” refers to a state in which the ring 54 can rotate against the tension of the lifting cord 10. The range can be adjusted by setting the resistance of the hanging member 53 with the tilt case 52. For example, the elevating cord 10 is led out through the slit 54c of the ring 54, but when the bottom rail 8 is near the lower limit position, the winding shaft 51 is used for winding or rewinding the elevating cord 10. Even if it rotates, the ring 54 rotates without being restricted by the lifting cord 10 because the load of the lifting cord 10 is in the “no-load state” (see FIGS. 5B and 5C). The rotation of the suspension member 53 engaged with the ring 54 is not hindered. Accordingly, the tilt case 52 also rotates, and the slat 4 tilts.

  However, since the rotation of the ring 54 becomes impossible when the protruding piece 54a of the ring 54 comes into contact with the tilt stopper 56e of the case portion 56, the tilt amount of the slat 4 is regulated so as not to rotate more than a predetermined angle. At this time, the one protruding piece 54 a of the suspended hanging member 53 acts so as to release the fastening of the hanging member 53 to the tilt case 52, and idles with respect to the rotation of the drive shaft 11. For example, in the fully closed state in FIG. 5B, the engagement end 53b on the right side in the drawing abuts on the projecting piece 54a on the right side in the figure to release the tightening, and in the reverse fully closed state in FIG. 5C. The engagement end 53b on the left side in the drawing contacts the protruding piece 54a on the left side in the drawing to release the tightening. For this reason, the rotation range and rotation conditions of the rotation of the suspension member 53 are regulated by the ring 54 and the tilt stopper 56e. Thus, when the bottom rail 8 is in the vicinity of the lower limit position, the elevating cord 10 added through the slit 54c of the ring 54 is in a no-load state, so that the angle of the slat 4 depends on the rotation direction of the drive shaft 11. The tilt operation can be performed until the fully closed state or the reverse fully closed state (see FIGS. 5B and 5C).

  On the other hand, when the operation of lowering the slat 4 is performed in a state where the bottom rail 8 is at the upper limit position (a state in which the slat 4 is folded), the tension due to the own weight of the bottom rail 8 is applied as a load of the lifting cord 10. Therefore, the slat 4 is lowered while maintaining the horizontal state without rotating the ring 54. For this reason, when the slat 4 descends, it is possible to reduce abrasion caused by the lifting cord 10 rubbing the edge of the insertion hole or notch of the slat 4 through which the lifting cord 10 is inserted.

  When the slat 4 is near the lower limit position, the lifting cord 10 is in a no-load state with respect to the tension of the bottom rail 8 due to its own weight, the ring 54 is rotatable, and the slat 4 can be fully closed or reverse fully closed for tilt operation. .

  When the bottom rail 8 is in the vicinity of the lower limit position and the angle of the slat 4 is fully closed or reverse fully closed, the operation of raising the bottom rail 8 (the folding operation of the slat 4) is performed. Since the tension due to its own weight of 8 starts to be applied as a load of the lifting cord 10, the ring 54 is rotated and maintained at a position where the slat 4 is in a horizontal state. For this reason, even when the slats 4 are lifted, the wear caused by the lifting cords 10 rubbing the edges of the insertion holes and the notches of the slats 4 through which the lifting cords 10 are inserted can be reduced.

  Thus, by rotating the drive shaft 11 via the operation unit 3 when the bottom rail 8 is near the lower limit position, the multi-stage slats suspended and supported by the ladder cord 9 via the cord support device 5 are provided. 4 can be adjusted, and furthermore, the slats 4 can be raised and lowered in a horizontal state by raising and lowering the bottom rail 8.

  As described above, the present invention has been described with reference to the example of the specific embodiment. However, the present invention is not limited to the example of the above-described embodiment, and can be variously modified without departing from the technical idea thereof. For example, in the example of the above-described embodiment, the configuration in which the ladder cords 9 on the front and rear sides are suspended and supported by using the suspension members 53 has been described. However, without providing the suspension members 53, the ladder cords 9 are directly provided on the ring 54. It is also possible to form such that the upper end portions of the ladder cords 9 on the front and rear sides are hooked. In this case, in order to synchronize the tilt rotation, the inner periphery of the ring 54 is directly in contact with the outer periphery of the winding shaft 51 with a certain degree of rotational frictional resistance so that it is rotatable and cannot move in the axial direction. May be provided. As a fixing method of the ladder cord 9, for example, instead of forming the recess 54b at a position corresponding to the groove-shaped recess 54b of the ring 54, a portion that can hook the upper end portions of the front and rear ladder cords 9 is provided. It may be a form provided integrally.

  Further, in the example of the above-described embodiment, the example in which the slit 54c is provided in the ring 54 to derive the elevating cord 10 has been described, but a hole from which the elevating cord 10 is derived may be used instead of the slit 54c.

  Further, in the example of the above-described embodiment, an example in which the rotation range of the ring 54 is regulated by the tilt stopper 56e provided in the case portion 56 has been described. However, as a tilt stopper means for regulating such a rotation range. For example, the ring 54 and the take-up shaft 51 can be configured to be engaged in advance so as to be rotatable only within a predetermined range, or the movement of the elevating cord 10 generated when the ring 54 is rotated is restricted. A part may be provided in the case part 56.

  Further, the ring 54 may be rotatably supported with respect to the tilt case 52. In this case, an insertion hole for leading out the elevating cord 10 may be provided in the tilt case 52, and the tilt stopper 56e may be protruded long enough to be able to abut the protruding piece 54a of the ring 54.

  Further, the winding shaft 51 can be replaced with a so-called tapered cone. In this case, the tilt case 52 does not need to be configured with a screwing structure, and the tilt case 52 does not need to have a length such that the winding shaft 51 is nested. What is necessary is just to form.

  In addition, a roller is provided on the lifting / lowering cord contact surface of the slit portion 54 with respect to the slit portion 54 provided on the ring 54, and the ring 54 and the lifting / lowering cord 10 are brought into contact with each other through the rolling of the roller, so that the friction between the lifting / lowering cord 10 and The resistance may be reduced.

  When the hanging position of the elevating cord 10 is not at the center of the slat 4 in the front-rear direction, for example, as shown in FIG. 6, when the cord 10 is hung down along the side edge of the slat 4 by a ring-shaped pico 9a or the like, The slit 54c may be formed in the ring 54 so as to extend from the tangent line of the winding shaft 51 toward the hanging position of the lifting cord 10. In this state, as shown in FIG. 6, the slats 4 may be raised and lowered in a horizontal state by forming a groove-shaped recess 54 b so as to rotate the hanging member 53 so that the slats 4 are in a horizontal state. it can.

  Further, in the above-described example, an example has been described in which the positional relationship between the slit portion 54c and the groove-shaped concave portion 54b is set so that the slat 4 moves up and down in a horizontal state. Degree) Even if the positional relationship between the slit portion 54c and the concave portion 54b is set so as to move up and down in an inclined state, the effect of improving the durability with respect to the reduction of friction between the slat 4 and the lifting cord 10 is achieved.

  Therefore, the shape of the ring 54, the shape of the winding shaft 51, and the shape of the case portion 56 may be appropriately modified according to the application as long as the functions according to the present invention are realized or the functions and effects are produced. it can.

  The lifting cord 10 may be tape-shaped or cord-shaped. Furthermore, the hanging position of the elevating cord at the cord outlet does not necessarily have to be substantially the center of the head box 1 in the front-rear direction or the center of the slats 4 in the front-rear direction.

  ADVANTAGE OF THE INVENTION According to this invention, in order that the slat angle can be raised and lowered in a state where the slat angle is not fully closed, and the durability of the lifting cord can be increased and the cost can be reduced, a horizontal blind that can raise and lower a multi-stage slat using the lifting cord It is useful for applications.

DESCRIPTION OF SYMBOLS 1 Head box 3 Operation unit 4 Slat 5 Cord support device 6 Bracket 8 Bottom rail 9 Ladder code 10 Elevating cord 51 Winding shaft 52 Tilt case 53 Hanging member 54 Ring 54a Projection piece 54b Depression 54c Slit portion 56 Case portion 56e Tilt stopper

Claims (4)

It is a horizontal blind that can raise and lower multiple slats using a lifting code,
A winding shaft for attaching one end of the lifting cord, rotating the multi-stage slats so as to be able to move up and down by rotating the drive shaft, and winding or rewinding the lifting cord,
A ring attached to the winding shaft so as to be relatively rotatable,
The other end of the lifting / lowering cord having one end attached to the winding shaft is attached to the bottom rail by hanging through a slit or a hole provided in the ring,
One end of a ladder cord for suspending and supporting the multi-stage slats is directly or indirectly attached to the ring, and the other end of the ladder cord is attached to the bottom rail,
The ring is wound so that the rotation of the ring according to the rotation of the winding shaft is allowed near the lower limit position of the bottom rail, and the rotation of the ring is not allowed except near the lower limit position of the bottom rail. Attached to the shaft ,
When the bottom rail is at a position other than the vicinity of the lower limit position, the tension due to the weight of the bottom rail is applied as a load of the lifting / lowering cord. horizontal blinds you characterized in that it is configured. 2. The horizontal blind according to claim 1 , wherein when the tension cord acts on the lifting cord, the rotation state of the slat is set to a horizontal state. 3. At the time of raising operation of the bottom rail near the lower limit position, the ring starts rotating due to the tension due to the weight of the bottom rail being applied as a load on the lifting cord through the slit or hole, whereby the ladder cord is rotated. wherein the slats of the multiple stages being suspended supporting is configured such that the bottom rail is raised leveled state, horizontal blind according to claim 1 or 2. The horizontal blind according to any one of claims 1 to 3 , further comprising tilt stopper means for restricting a rotation range of the ring and restricting a tilt range of the multi-stage slats.