JP2019112866A - Horizontal blind - Google Patents

Abstract

To provide a horizontal blind which can increase the slat inclination angle even when a general ladder cord that has been not specially processed is used.SOLUTION: A horizontal blind 100 includes a ladder cord 120 suspended from a head box 110, a plurality of slats 130 supported by the ladder cord 120 in an alignment manner, and a bottom rail 140 to which the lower end of the ladder cord 120 is connected. The blind features that the ladder cord 120 has vertical cords 122-1 and 122-2 which hang from the front and rear slats 130, and a middle cord connecting the front and rear vertical cords 122-1 and 122-2, the front and rear vertical cords 122-1 and 122-2 are disposed so as to be shifted right and left with respect to the longitudinal direction of the slat 130, and the middle cord supports the slat 130 obliquely with respect to the transverse direction of the slat 130.SELECTED DRAWING: Figure 1

Description

  The present invention relates to horizontal blinds.

  As a conventional horizontal blind, there exist some which are shown by Unexamined-Japanese-Patent No. 2010-77682 (patent document 1). In the horizontal blind disclosed in the same document, when the slat is inclined to a fully closed angle, the portion of the convex surface of the slat near the edge contacts the vertical tape of the ladder tape and rotation is inhibited, and the slat is sufficiently Since a sufficient shielding property may not be obtained without being able to be inclined, a bendable portion is formed at a predetermined position closer to the center from at least one edge of the middle tape of the ladder tape.

  According to this, when the slat is inclined to the fully closed angle, the edge of the slat inclines while bending the easy-to-bend portion, so the slat inclines while being positioned approximately at the center position of the middle tape. Therefore, the inclination of the slats is less likely to be hindered by the vertical tape, and the slats can be more easily taken in a vertical position to improve the shielding property.

JP, 2010-77682, A

  However, in order to form the bendable portion in the middle step tape of the ladder tape, it is necessary to process a fold at a predetermined position of the middle step tape in advance, unless the bendable portion is formed in the manufacturing process of the ladder tape. It is necessary to improve the ladder tape manufacturing apparatus.

  Therefore, the present invention has been made in view of such problems, and the purpose of the present invention is to increase the inclination angle of the slat even when using a common ladder cord in which the ladder tape is not specially processed. It is in providing a horizontal blind that can be done.

  To solve the above problems, according to the present invention, a ladder cord suspended from a head box, a plurality of slats supported in an aligned state by the ladder cord, and a bottom rail to which the lower end of the ladder cord is connected The ladder cord includes a vertical cord hanging down to the front and back of the slat, and a middle cord connecting the front and rear vertical cords, and the front and rear vertical cords are the blind A horizontal blind is provided, which is disposed to be laterally displaced with respect to the longitudinal direction of the slat, and the middle cord supports the slat obliquely with respect to the short direction of the slat.

  According to the configuration of the present application, a general ladder cord having no foldable portion in the middle stage cord is used by displacing the middle stage cord obliquely with respect to the short side direction of the slat by shifting the front and rear vertical cords to the left and right. However, when the slats are fully closed or reverse fully closed, the inclination angle of the middle cords with respect to the slats approaches more vertically than when the longitudinal cords are not displaced, and the front and back longitudinal cords approach each other and the slats are inclined Since the angle can be increased, the shielding property can be improved.

  In addition, since the middle cord supports the slat diagonally with respect to the short direction of the slat, for example, even when the end of the slat is caught by an obstacle when lifting the slat, the stress applied to the slat from the middle cord is It can be dispersed to prevent bending of the slat.

The present invention has various applications. The following applications can be combined as appropriate.
For example, the slat may be provided with a shift prevention unit that prevents the shift of the ladder cord. According to this, it is possible to prevent the middle cords from being arranged orthogonal to the slats by the shift preventing portion so that the front and rear vertical cords are laterally shifted.

  Further, the shift preventing portion may be a notch formed at at least one of the front and rear side edges of the slat and through which the vertical cord or the middle cord is inserted. According to this, by inserting the vertical cord or the middle cord into the notch, the vertical cord or the middle cord is restricted at the notch during the slat lifting, for example, so that the front and rear vertical cords are laterally shifted, and the middle cord is Orthogonal arrangement with respect to the slat can be prevented.

  In addition, the middle cord comprises a pair of upper and lower cords, and the upper and lower cords form an intersection, the slat is inserted between the upper and lower cords, and the slat side edge is brought into contact with the intersection. The upper and lower cords may support the slat by sandwiching the slat. According to this, since the crossover portion is disposed obliquely in the slat short direction, for example, when there is no notch on the side edge of the slat, alignment for inserting the slat between the upper and lower cords is facilitated. And the assemblability can be improved. In addition, when the side edge of the slat has a notch, the stress applied to the slat is dispersed by increasing the range in which the slat can be vertically supported, and the slat can be prevented from bending from the notch.

  Further, the upper ends of the front and rear longitudinal cords may be suspended so as to be displaced to the left and right with respect to the head box when being led out from the insertion hole of the head box. According to this, since the vertical cord is shifted to the left and right with respect to the head box since it is led out from the insertion hole of the head box, for example, the ladder cord is not added to the number of parts or additional processing to slats. It can be arranged to be offset with respect to the lateral direction of the slat.

  Further, lower ends of the front and rear longitudinal cords are connected to the bottom rail by a ladder holder, and guide grooves for guiding the front and rear longitudinal cords are provided on the left and right of the ladder holder with respect to the lateral direction of the bottom rail. It may be formed to be offset. According to this, by assembling the front and rear longitudinal cords in the guide grooves formed in the rudder holder, the front and rear longitudinal cords can be easily assembled so as to be offset with respect to the short side direction of the bottom rail.

  Further, the slat may be provided with a slat clip for fixing the middle cord at an angle with respect to the lateral direction of the slat. According to this, by providing the slat clip, for example, the middle cord can be arranged diagonally to the short side direction of the slat on the slat at the middle position of the top slat or the slat in the vertical direction, and Lateral displacement of the ladder cord can be prevented.

  According to the present invention, the inclination angle of the slat can be increased even if a general ladder cord not specially processed on the ladder tape is used. Other effects of the present invention will also be described in the embodiments for carrying out the invention described later.

It is a front view which shows the whole structure of the horizontal blind 100 of 1st Embodiment. It is a figure for demonstrating the state from which a vertical code | cord | chord is derived | led-out from a head box. It is a figure for demonstrating the state of arrangement | positioning of the ladder cord and raising / lowering cord with respect to a slat. It is a figure for demonstrating the state which connects a ladder cord to a slat with a slat clip, (a) is a figure for demonstrating the structure of a slat clip, (b) is for demonstrating the use condition of a slat clip Of the It is a figure for demonstrating the state which connects a ladder cord to a bottom rail with a ladder holder, (a) is a figure for demonstrating a ladder holder, (b) is a figure for demonstrating the use condition of a ladder holder. . It is a figure for demonstrating the operation | movement of the horizontal blind 100, (a) is a front view of a slat in a fully closed state, (b) is a side view of a slat in a totally closed state, and only the ladder cord 120 at that time. It is a top view showing, and (c) is a top view showing only a side view of a conventional horizontal blind in a fully closed state, and a ladder cord at that time. It is a figure for demonstrating the operation | movement of the horizontal blind 100, (a) is a figure of a slat in a horizontal state, (b) is a figure of a slat in a totally closed state, (c) is a slat reverse totally closed. It is a figure of a state. It is a front view which shows the whole state of the horizontal blind 100 when a slat is fully closed. It is a figure for demonstrating the structure of the ladder cord of a horizontal blind of 2nd Embodiment, and a raising / lowering cord. It is a figure for demonstrating the structure of the slat of the horizontal blind of 3rd Embodiment, a ladder cord, and a raising / lowering cord. It is a top view of the slat of the horizontal blind of a 4th embodiment. It is a top view of the slat of the horizontal blind of a 5th embodiment. It is a top view of the slat 630 of the horizontal blind of 6th Embodiment. It is a front view which shows the whole structure of the horizontal blind 700 of 7th Embodiment. It is a front view which shows the whole state of the horizontal blind 700 when a slat is fully closed. It is a figure for demonstrating the structure of the horizontal blind 800 of 8th Embodiment, (a) is a front view which shows a whole structure, (b) is a state from which a vertical cord and a raising / lowering cord are derived | led-out from a head box. It is a figure for demonstrating.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the present specification and the drawings, components having substantially the same functional configuration will be assigned the same reference numerals and redundant description will be omitted.

First Embodiment
A first embodiment of the present invention will be described. First, the entire configuration of the horizontal blind 100 according to the present embodiment will be described with reference to FIGS. 1 to 3. FIG. 1 is a front view for explaining the overall configuration of a horizontal blind 100 according to the embodiment. FIG. 2 is a diagram for explaining a state in which the longitudinal cords 122-1 and 122-2 are derived from the head box 110. FIG. 3 is a view for explaining the state of arrangement of the ladder cord 120 and the lifting cord 150 with respect to the slat 130.

  As shown in FIG. 1, the horizontal blind 100 according to this embodiment includes a ladder cord 120 suspended from the head box 110, a plurality of slats 130 supported in an aligned state by the ladder cord 120, and a lower end of the ladder cord 120. And a bottom rail 140 coupled thereto. Each component will be described in detail below.

(Head box 110)
The head box 110 is fixed to a window frame or a ceiling (not shown). From the head box 110, as shown in FIG. 1, a ladder cord 120 for hanging the plurality of slats 130 in alignment and a lifting cord 150 for lifting and lowering the slat 130 are suspended.

  In the head box 110, a winding drum 112 capable of winding and unwinding the upper end of the ladder cord 120 by a predetermined length and winding and unwinding the lifting cord 150 is disposed. . The winding drum 112 is rotatably supported by the drum holder 114 on the head box 110. In the winding drum 112, a rotary shaft 116 provided substantially over the entire length in the longitudinal direction of the head box 110 is penetrated so as to integrally rotate. The rotation shaft 116 is operated to rotate by an operation cord 118 provided at one end of the head box 110, and the vertical cords 122-1 and 122-2 before and after the ladder cord 120 and the lifting cord 150 are wound on the winding drum 112. And unrolled.

  At the bottom of the head box 110 and the drum holder 114, as shown in FIG. 2, first and second insertion holes 119a and 119b for leading the longitudinal cords 122-1 and 122-2 are provided. There is. The first insertion hole 119a is located at a position including the position where the front and rear longitudinal cords 122-1 and 122-2 are connected to the winding drum 112 in the longitudinal direction of the head box 110, that is, in FIG. It is provided at the right end. The second insertion hole 119 b is provided at a substantially central position in the longitudinal direction of the drum receiver 114.

  The front vertical cord 122-1 and the raising and lowering cord 150 are inserted into the first insertion hole 119a, and the front vertical cord 122-1 and the raising and lowering cord 150 hang down in a state of being along each other. On the other hand, the later vertical cord 122-2 is inserted into the second insertion hole 119b and is suspended. In this manner, the front and rear longitudinal cords 122-1 and 122-2 are led out from the head box 110 so as to be disposed to be laterally displaced with respect to the longitudinal direction of the slat 130. The front vertical cord 122-1 and the lifting cord 150 may be inserted through different insertion holes.

(Ladder code 120)
The ladder cords 120 support the plurality of slats 130 in an aligned state. The ladder cords 120 are disposed at a plurality of positions in the longitudinal direction of the head box 110 as shown in FIG. 1, and the upper ends thereof are respectively connected to the winding drum 112 as described above.

  The ladder cord 120 is configured as a ladder by means of a middle cord 124 connecting the front and rear longitudinal cords 122-1 and 122-2 extending in the vertical direction and the front and rear longitudinal cords 122. The front and rear longitudinal cords 122-1 and 122-2 are arranged to be laterally displaced with respect to the longitudinal direction of the slat 130, and the middle cord 124 supports the slat 130 obliquely with respect to the lateral direction of the slat 130. (See Figure 3). The ladder cords 120 disposed in this manner may be at least ladder cords 120 disposed at both ends of the slat 130, and the other ladder cords may be disposed in the same manner. Alternatively, the longitudinal cords at the front and rear may be arranged in the same manner as a normal ladder cord that does not shift to the left and right in the longitudinal direction of the slat.

  The front and rear longitudinal cords 122-1 and 122-2 are arranged to be displaced to the left and right with respect to the longitudinal direction of the slat 130. This configuration will be described with reference to FIG. The front vertical cord 122-1 hangs down at the position connected to the winding drum 112 and is led out from the first insertion hole 119 a of the head box 110. On the other hand, the rear vertical cord 122-2 hangs from the position connected to the take-up drum 112 to the bottom of the drum receiver 114, and the bottom of the drum receiver 114 is distributed to the longitudinal center position of the drum receiver 114 It is derived from the second insertion hole 119b.

  In this manner, the upper ends of the front and rear vertical cords 122-1 and 122-2 are shifted to the left and right with respect to the head box 110 when being led out from the first and second insertion holes 119a and 119b of the head box 110. Hang down. Therefore, the front and rear longitudinal cords 122-1 and 122-2 are arranged to be laterally displaced with respect to the longitudinal direction of the slat 130.

  In addition, the installation method of the ladder cord 120 in the head box 110 is not limited to the method of this embodiment. For example, the longitudinal cords 122-1 and 122-2 may be shifted from the longitudinal direction of the slat 130 by axially shifting the positions where the longitudinal cords 122-1 and 122-2 are connected to the winding drum 112. It may be arranged to be shifted in the left and right direction.

  Therefore, as shown in FIG. 3, the middle cord 124 is positioned so that the front longitudinal cord 122-1 side is inside the longitudinal direction of the slat 130 and the rear longitudinal cord 122-2 side is outside the slat 130 longitudinal direction The slats 130 are disposed obliquely with respect to the short side direction of the slats 130 to support the slats 130. In addition, the middle stage code 124 is configured such that a cross portion is formed by a pair of upper and lower cords 124-1 and 124-2. The slat 130 is inserted between the upper and lower cords 124-1 and 124-2. The upper and lower cords 124-1 and 124-2 support the slat 130 with the side edge of the slat 130 in contact with the crossing portion.

(Slat 130)
The plurality of slats 130 shield and open the opening. The plurality of slats 130 are supported in an aligned state by the ladder cords 120 as shown in FIG. 1 and rotate as the ladder cords 120 tilt. As shown in FIG. 3, the slat 130 is provided with front and rear notches 132-1 and 132-2 on the front and rear side edges so as to be shifted to the left and right with respect to the longitudinal direction. The front vertical cord 122-1 or the middle cord 124 is inserted into the front notch 132-1, and the rear vertical cord 122-2 or the middle cord 124 is inserted into the rear cutout 132-2. Therefore, the front and rear vertical cords 122-1, 122-2 and the middle cord 124 are disposed obliquely to the short direction of the slat 130 by the front and rear notches 132-1, 132-2 and the positional deviation is It is prevented.

  As shown in FIG. 3, a lifting cord 150, which will be described later, is also disposed in the notch 132-1 in front of some slats 130 among the plurality of slats 130. The raising and lowering cord 150 disposed in the front notch 132-1 is disposed closer to the slat 130 than the front vertical cord 122-1, and the crossing portions of the pair of upper and lower cords 124-1 and 124-2 are inserted There is.

  Here, the relationship between the width of the slat 130 and the length of the middle step cord 124 of the ladder cord 120 will be described. In general, slats of 25 mm, 35 mm, and 50 mm in width in the short direction are used. At this time, when the middle cord is arranged orthogonal to the slat as in the prior art, the length of the middle cord becomes several mm longer than the width of the slat. For example, the length of the middle cord corresponding to a 35 mm wide slat is about 38 mm, and the length of the middle cord corresponding to a 50 mm wide slat is about 54 mm.

  In the present embodiment, when the width of the slat 130 is 25 mm, the one for the wide 35 mm-wide slat can be used as the ladder cord 120. In addition, when the width of the slat 130 is 35 mm, the one for the slat having a width of 50 mm, which is one wide, can be used as the ladder cord 120. In this way, existing ladder cords can be used effectively.

  Thus, when the width of the slat 130 is 35 mm, the length of the middle cord 124 can be 54 mm. At this time, the angle of the middle cord 124 is inclined at about 46 ° to 50 ° with respect to the lateral direction of the slat 130. When the width of the slat 130 is 25 mm, the length of the middle cord 124 can be 38 mm. At this time, the angle of the middle cord 124 is inclined at about 44 ° to 49 ° with respect to the lateral direction of the slat 130.

  According to the experiment, if the angle of the middle cord 124 is inclined by about 30 ° or more with respect to the lateral direction of the slat 130, it is effective for the rotation and bending resistance of the slat 130. Summarizing the above, it is preferable that the angle of the middle cord 124 be inclined at about 30 ° to 50 ° with respect to the lateral direction of the slat 130.

(Bottom rail 140)
The bottom rail 140 applies tension to the ladder cord 120 and the lifting cord 150. The bottom rail 140 is provided below the lowermost slat 130, as shown in FIG. 1, and the lower ends of the front and rear vertical cords 122-1 and 122-2 and the lower end of the lifting cord 150 are connected. The front and rear vertical cords 122-1 and 122-2 are connected to the bottom rail 140 while maintaining a position shifted to the left and right with respect to the longitudinal direction of the slat 130 by a ladder holder 170 described later.

(Lifting cord 150)
The raising and lowering cord 150 is for raising and lowering the slat 130. The lifting cord 150 hangs from the head box 110 and is connected to the bottom rail 140 through the front side of the row of slats 130 as shown in FIG. As described above, the upper end of the lifting cord 150 is connected to the winding drum 112 so as to be able to be wound and unwound, and is inserted through the first insertion hole 119a of the head box 110 together with the front vertical cord 122-1. , Hanging down along the front vertical cord 122-1.

  As shown in FIG. 3, the lifting cord 150 is disposed in the notch 132-1 in front of some slats 130 among the plurality of slats 130. The raising and lowering cord 150 disposed in the front notch 132-1 is disposed closer to the slat 130 than the front vertical cord 122-1, and the crossing portions of the pair of upper and lower cords 124-1 and 124-2 are inserted There is.

(Slat clip 160)
As shown in FIG. 4, the slat 130 is provided with a slat clip 160 for fixing the middle step cord 124 of the ladder cord 120, and the slat clip 160 arranges the middle step cord 124 obliquely to the slat 130. Provided to be The slat clip 160 will be described below with reference to FIG. FIG. 4 is a diagram for explaining a state in which the ladder cord 120 is connected to the slat 130 by the slat clip 160, where (a) is a diagram for describing the configuration of the slat clip 160, and (b) is a slat. It is a figure for demonstrating the use condition of the clip 160. FIG.

  As shown in FIG. 4A, the slat clip 160 has a substantially U-shape including two opposing pieces and a piece connecting them. Two opposing pieces of the slat clip 160 are formed with locking claws 162 for locking the slat 130 at both ends thereof. Moreover, the notch part 164 of substantially the same depth as the notch parts 132-1 and 132-2 of the back and front of the slat 130 is formed in the position adjacent to all the latching claws 162 of two opposing pieces. The shape of the slat clip does not necessarily have to be substantially U-shaped, and it may be, for example, substantially I-shaped, as long as the middle step cord 124 can be disposed obliquely with respect to the slat 130. It doesn't matter.

  The width of the left and right notches 164 formed in one piece corresponds to the width in the longitudinal direction of the slat 130 of the front and rear notches 132-1 and 132-2. Therefore, at the left and right ends of the slat 130, the front and rear notches 132-1 and 132-2 are in symmetrical positions, but the same slat clip 160 should be used for both left and right ends of the slat 130. Can.

  As shown in FIG. 4B, the slat clip 160 is configured such that the locking claws 162 are aligned with the positions of the notches 164-1 and 132-2 before and after the slat 130, as shown in FIG. It is attached to the slat 130 by locking to the front and rear side edges. The slat clip 160 thus attached clamps the upper cord 124-1 located below with the slat 130 without interfering with the action of the front and rear notches 132-1 and 132-2 of the slat 130. The middle stage code 124 is fixed.

(Ladder holder 170)
The ladder holder 170 is for connecting the front and rear vertical cords 122-1 and 122-2 to the bottom rail 140. As shown in FIG. 5A, the ladder holder 170 has a rectangular shape in a plan view, and is provided with a connecting portion 172 at the center that connects the front and rear vertical cords 122-1 and 122-2. The connecting portion 172 may be configured to wind the front and rear vertical cords 122-1 and 122-2 around the outer peripheral surface by rotating.

  The rudder holder 170 is formed with a guide groove 174 for pulling in the cord to the connecting portion 172. The guide groove 174 is substantially Y-shaped symmetrically in the front-rear direction with the connecting portion 172 interposed therebetween, and is formed in a substantially X-shape as a whole. The guide groove 174 is formed from the front and rear ends of the rudder holder 170 to the connecting portion 172, and a substantially Y-shaped forked upper end is located at the front and rear ends of the rudder holder 170. Therefore, as shown in FIG. 5B, the front vertical cord 122-1 and the rear vertical cord 122-2 are inserted into the ladder holder 170 from the guide groove 174 at a position shifted in the left-right direction of the ladder holder 170. Be drawn. Since the guide groove 174 is a substantially Y-shaped groove, the same ladder holder 170 can be used regardless of the direction in which the front and rear vertical cords 122-1 and 122-2 shift.

  The entire configuration of the horizontal blind 100 has been described above. Next, the operation of the horizontal blind 100 will be described in comparison with the conventional horizontal blind with reference to FIGS. FIG. 6 is a view for explaining the operation of the horizontal blind 100, where (a) is a front view of the slat 130 in a fully closed state, (b) is a side view of the slat 130 in a fully closed state and FIG. 10C is a plan view showing only the ladder cord 120, and FIG. 12C is a side view showing a conventional horizontal blind in a fully closed state and a plan view showing only the ladder cord at that time. 7A and 7B are diagrams for explaining the operation of the horizontal blind 100, where FIG. 7A is a diagram of the slat 130 in a horizontal state, and FIG. 7B is a diagram of the slat 130 in a fully closed state. Is a diagram of the slat 130 in the reverse totally closed state. FIG. 8 is a front view showing the entire state of the horizontal blind 100 when the slat 130 is fully closed.

  As shown in FIG. 7A, when the slat 130 is in the horizontal state, the horizontal blind 100 can maintain the view from between the slats 130. At this time, the upper cord 124-1 supports the slat 130 from below, and the lower cord 124-2 supports the slat 130 along the convex surface.

When the slat 130 is fully closed, in the conventional horizontal blind, as shown in FIG. 6C, the middle cord is disposed so that the slat is substantially orthogonal to the longitudinal direction, so the slat is completely closed. In the state, the angle θ ₂ formed by the vertical cord and the upper cord in side view is generated only in the slat short direction, and the approach of the front and rear longitudinal cords is inhibited (the distance between the front and rear longitudinal cords is A and Become). For this reason, the upper cord disturbs that the slat is inclined to the vertical state (the repulsion by the angle θ ₂ part acts), and the shielding property is lowered.

On the other hand, as shown in FIGS. 6 (a), 6 (b), 7 (b) and 8 in the present invention horizontal blind 100, the upper cord 124-1 has the concave side of the slat 130 In order to support obliquely with respect to the short direction of the slat 130, the angle θ between the longitudinal cord 122-1 and the upper cord 124-1 also occurs in the longitudinal direction of the slat (more precisely, in a direction crossing the slat obliquely) The distance A and the angle θ ₁ occur). At this time, although the height difference X of the connection portion between the upper cord 124-1 and the vertical cords 122-1 and 122-2 is equivalent to that of the conventional horizontal blind, the vertical cord 122-1 and the upper cord 124- in side view to become smaller than the angle theta ₁ is theta ₂ which one forms a distance vertical code 122-1 and 122-2 of the longitudinal code 122-1 and 122-2 are close (around the longitudinal and short a 'than a Then, the slat 130 is inclined to the vertical state, and the light shielding property is improved. Also, when the slat 130 is in the reverse totally closed state, as shown in FIG. 7C, the light blocking property is improved as in the fully closed state. In addition, in order to form the cross portion between the upper code 124-1 and the lower code 124-2, the upper and lower relationship is changed and the slat 130 is inserted therebetween, but the upper code 124-1 and the lower code 124-2 The shielding property is also improved similarly as a structure in which the slat 130 is supported on the upper cord 124-1 and the lower cord 124-2 without replacing the upper / lower relationship of the above.

(Effects of the first embodiment)
As described above, according to the present embodiment, the middle cords 124 are arranged obliquely with respect to the lateral direction of the slat 130 by shifting the front and rear vertical cords 122-1 and 122-2 to the left and right. While using the general ladder cord 120 having no bendable portion in the cord 124, the middle stage cord 124 for the slat 130 at the fully closed or the reverse fully closed state of the slat 130 as compared with the case where the position of the vertical cord is not shifted. Since the inclination angle of the slat 130 is closer to the vertical direction and the longitudinal cords 122-1 and 122-2 come close to each other and the inclination angle of the slat 130 can be increased, the shielding property can be improved.

  In addition, since the middle cord 124 supports the slat 130 obliquely with respect to the short direction of the slat 130, for example, even when the end of the slat 130 is caught by an obstacle when moving up or down the slat 130, the middle cord 124 The stress applied to the slats 130 is dispersed, and bending can be prevented.

  Also, by inserting the longitudinal cords 122-1, 122-2 or the middle cord 124 into the notch 132, for example, when moving the slat 130, the longitudinal cords 122-1, 122-2 or the middle cord Since the front and rear vertical cords 122-1 and 122-2 are laterally offset due to the restriction of the notch portion 132, the middle stage cord 124 can be prevented from being disposed orthogonal to the slat 130.

  In addition, since the crossover portion of the middle cord 124 is disposed obliquely in the short direction of the slat 130, the range in which the slat 130 can be supported vertically can be increased. Therefore, even if the side edge of the slat 130 has the notch 132, the stress applied to the slat 130 is dispersed, and the slat 130 can be prevented from being bent from the notch 132. Further, for example, when there is no notch at the side edge of the slat 130, the alignment for inserting the slat 130 between the upper and lower cords 124-1 and 124-2 becomes easy, and the assemblability can be improved.

  Further, since the front and rear vertical cords 122-1 and 122-2 are shifted to the left and right with respect to the head box 110 since they are led out from the first and second insertion holes 119a and 119b of the head box 110, for example, the number of parts The longitudinal cords 122-1 and 122-2 can be disposed so as to be offset with respect to the short direction of the slat without adding the slats 130 or the additional processing to the slats 130.

  Further, by assembling the front and rear longitudinal cords 122-1 and 122-2 in the guide groove 174 formed in the rudder holder 170, the front and rear longitudinal cords 122-1 and 122-2 with respect to the width direction of the bottom rail 140. Can be easily assembled so as to be offset.

  In addition, by providing the slat clip 160, for example, the middle cord 124 can be disposed obliquely to the short side direction of the slat 130 at the slat 130 located midway in the vertical direction of the slat 130 or slat 130 at the top. In addition, lateral displacement of the ladder cord 120 can be prevented.

Second Embodiment
The horizontal blind according to the second embodiment will be described with reference to FIG. FIG. 9 is a view for explaining the configuration of the ladder cord 220 and the lifting cord 250 of the horizontal blind according to the second embodiment. The configuration of the slat 130 of this embodiment is the same as that of the first embodiment, but the configurations of the ladder cord 220 and the lifting cord 250 are different from those of the first embodiment. In the present embodiment, differences from the first embodiment will be mainly described. About the component which has the substantially same function structure, duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol.

  As shown in FIG. 9, the ladder cord 220 is provided with a forwardly projecting loop-shaped portion 226 at the connection position of the front vertical cord 222-1 and the middle cord 224. The lifting cord 250 is inserted into the loop portion 226. Therefore, in the first embodiment, the elevating cord 150 is inserted into the notch 132-1 in front of the slat 130, but in the present embodiment, the notch 132-1 in front of the slat 130 is inserted. The lifting cord 250 is not inserted.

(Effect of the second embodiment)
As described above, according to this embodiment, the same effect as that of the first embodiment can be obtained.

Third Embodiment
The horizontal blind according to the third embodiment will be described with reference to FIG. FIG. 10 is a view for explaining the configuration of the slat 330, the ladder cord 320 and the lifting cord 350 of the horizontal blind according to the third embodiment. The present embodiment is different from the first embodiment in the configuration of the slat 330, the ladder cord 320 and the lifting cord 350. In the present embodiment, differences from the first embodiment will be mainly described. About the component which has the substantially same function structure, duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol.

  In the slat 330, as shown in FIG. 10, the notch 132-2 after being provided in the slat 130 of the first embodiment is not provided, and only the front notch 332-1 is provided. There is. The front notch portion 332-1 has the same shape as the front notch portion 132-1 of the first embodiment.

  Therefore, in the ladder cord 320, the rear vertical cord 322-2 is disposed along the side edge of the slat 330, and only the middle cord 324 on the front vertical cord 322-1 or the front vertical cord 322-1 side. It is inserted in the front notch part 332-1. A loop-shaped portion 326 similar to the loop-shaped portion 226 of the second embodiment is provided in the front vertical cord 322-1, and the lifting cord 350 is inserted.

(Effect of the third embodiment)
As described above, according to this embodiment, the same effect as that of the first embodiment can be obtained.

Fourth Embodiment
The horizontal blind according to the fourth embodiment will be described with reference to FIG. FIG. 11 is a plan view of the slat 430 of the horizontal blind of the fourth embodiment. The present embodiment is different from the first embodiment in the configuration of the notch 432 of the slat 430. In the present embodiment, differences from the first embodiment will be mainly described. About the component which has the substantially same function structure, duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol.

  The notch 432 of the slat 430 is substantially L-shaped as shown in FIG. The front notch portion 432-1 is formed in left-right symmetry so that the upper end of the substantially L-shape is positioned closer to the center of the slat 430. The rear notch portion 432-2 is formed in left-right symmetry so that the upper end of the substantially L-shape is positioned closer to the end portion of the slat 430. The front and rear longitudinal cords 122-1 and 122-2 are engaged with the lower end of the substantially L shape of the front and rear notch portions 432-1 and 432-2, so that the middle cord 124 is in the lateral direction of the slat 430 It can be arranged diagonally and is held in the locked position by the tension of the middle cord 124. In addition, since the opening of the cutout portion 432 is small, the front and rear vertical cords 122-1 and 122-2 are prevented from coming off the cutout portion 432.

(Effect of the fourth embodiment)
As described above, according to the present embodiment, in addition to the same effect as the first embodiment, since the notch portion 432 has a substantially L-shaped shape, the front and rear notch portions 432-1 and 432-2 are It is held in the locked position. In addition, since the opening of the notch portion 432 is small, it is possible to prevent the front and rear vertical cords 122-1 and 122-2 from coming off the notch portion 432.

Fifth Embodiment
The horizontal blind according to the fifth embodiment will be described with reference to FIG. FIG. 12 is a plan view of a slat of a horizontal blind according to a fifth embodiment. The present embodiment is different from the first embodiment in the configuration of the slat 530. In the present embodiment, differences from the first embodiment will be mainly described. About the component which has the substantially same function structure, duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol.

  As shown in FIG. 12, in the slat 530, a step 532 is provided at the position where the notch 132 of the first embodiment is provided, instead of the notch. The step 532-1 before being provided on the front side edge of the slat 530 has a concave shape in which the longitudinal end side of the slat 530 protrudes and the center side is recessed. On the other hand, the step difference 532-2 provided at the rear side edge of the slat 530 has a convex shape in which the longitudinal direction end side of the slat 530 is recessed and a portion close to the center protrudes.

  The front vertical cord 122-1 is disposed at the indented portion of the front step 532-1, and its movement toward the end in the longitudinal direction of the slat 530 is restricted. The rear vertical cord 122-2 is disposed in the recessed portion of the rear step 532-2, and the movement of the slat 530 in the central direction in the longitudinal direction is restricted. Accordingly, the front and rear vertical cords 122-1 and 122-2 are held at the positions where they are offset to the left and right with respect to the longitudinal direction of the slat 530.

(Effect of the fifth embodiment)
As described above, according to this embodiment, the same effect as that of the first embodiment can be obtained.

Sixth Embodiment
A horizontal blind according to a sixth embodiment will be described with reference to FIG. FIG. 13 is a plan view of a slat 630 of the horizontal blind according to the sixth embodiment. The present embodiment is different from the first embodiment in the configuration of the slat 130. In the present embodiment, differences from the first embodiment will be mainly described. About the component which has the substantially same function structure, duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol.

  The front and rear side edges of the slat 630 are not provided with cutouts as in the first embodiment. Further, the slat 630 is provided with a lift cord insertion hole 632 through which the lift cord 150 is inserted. The front and rear longitudinal cords 122-1 and 122-2 are disposed along the front and rear side edges of the slat 630. In addition, the slat 630 is not inserted between the upper code 124-1 and the lower code 124-2 of the middle code 124, and both the upper code 124-1 and the lower code 124-2 of the middle code 124 are slats 630. Pass through the underside of the The raising and lowering cord 150 is disposed along the front vertical cord 122-1 in the first embodiment, but in the present embodiment, the raising and lowering cord 150 is disposed through the elevation cord insertion hole 632.

(Effect of the sixth embodiment)
As described above, according to this embodiment, the same effect as that of the first embodiment can be obtained.

Seventh Embodiment
A horizontal blind 700 according to a seventh embodiment will be described with reference to FIGS. 14 and 15. FIG. 14 is a front view showing the overall configuration of a horizontal blind 700 of the seventh embodiment. FIG. 15 is a front view showing the entire state of the horizontal blind 700 when the slat is fully closed. The present embodiment is different from the first embodiment in the configuration of the arrangement of the longitudinal cords 722-1 and 722-2 on the front and rear sides. In the present embodiment, differences from the first embodiment will be mainly described. About the component which has the substantially same function structure, duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol.

  The front and rear vertical cords 722-1 and 722-2 are derived from the same position of the head box 110 as shown in FIG. The front longitudinal cord 722-1 is dropped as it is and is led to a notch 164 near the longitudinal center of the slat 130 of the slat clip 160 provided on the top slat 130. On the other hand, the rear vertical cord 722-2 is a notch near the longitudinal end of the slat 130 of the slat clip 160 similar to the vertical cord 122-2 after the first embodiment after being drawn out from the head box 110. It is led to the part 164. As described above, the middle cord 724 is fixed by the slat clip 160 in a state where the front and rear vertical cords 722-1 and 722-2 are disposed. Therefore, as shown in FIG. 15, the middle cord 724 is supported obliquely with respect to the short side direction of the slat 130. A force acts on the uppermost slat 130 to move the slat in the longitudinal direction (direction of lead-out position from the head box 110) by the tension by the later vertical cord 722, but the ladder cords of both left and right ends By arranging the vertical cords 722-1 and 722-2 symmetrically, movement of the uppermost stage slat can be prevented.

  Similarly to the above, the longitudinal cords 722-1 and 722-2 are disposed on the slat clip 160 provided on the slat 130 located midway in the vertical direction, and the middle cord 724 is fixed as a shift preventing portion Make it work.

(Effect of the seventh embodiment)
As described above, according to the present embodiment, the same effect as that of the first embodiment can be obtained even if the head box 110 is not subjected to processing for leading the longitudinal cords 722-1 and 722-2 from different positions. Play.

Eighth Embodiment
A horizontal blind 800 according to the eighth embodiment will be described with reference to FIG. FIG. 16A is a front view showing the overall configuration of a horizontal blind 800 according to the eighth embodiment. FIG. 16B is a view for explaining a state in which the vertical cord and the lifting cord are derived from the head box. The present embodiment is different from the first embodiment in the configuration of the arrangement of the longitudinal cords 822-1 and 822-2 and the lifting cord 850 at the front and rear. In the present embodiment, differences from the first embodiment will be mainly described. About the component which has the substantially same function structure, duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol.

As shown in FIGS. 16 (a) and 16 (b), the rear vertical cord 822-2 hangs down at the position connected to the winding drum 112 and is led out from the first insertion hole of the head box 110. Ru. On the other hand, the front vertical cord 822-1 hangs down from the position connected to the take-up drum 112 to the bottom of the drum receiver, and the bottom of the drum receiver is distributed to the longitudinal approximate center position of the drum receiver. It is derived from the hole. In this manner, the upper ends of the front and rear vertical cords 822-1 and 822-2 are suspended so as to be displaced laterally with respect to the head box 110 when being led out from the first and second insertion holes of the head box 110. . Accordingly, the front and rear longitudinal cords 822-1 and 822-2 are arranged to be laterally shifted with respect to the longitudinal direction of the slat 130. On the other hand, the lifting cord 850 hangs down from the winding start position to the winding drum 112 as it is, is drawn out from the first insertion hole of the head box 110, and hangs down along the later vertical cord 822-2.
(Effect of the eighth embodiment)
As described above, according to the present embodiment, the same effect as that of the first embodiment can be obtained while hanging the lifting cord 850 on the rear side of the slat 130.

  Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to such examples. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the appended claims, and of course these also fall within the technical scope of the present invention. It is understood.

  For example, in the above-mentioned embodiment, although notch 132, 432, level difference 532-1, 532-2, or slat clip 160 was provided as a slip prevention part, the present invention is not limited to this example. An arbitrary shift prevention unit can be designed in consideration of the processing cost of the slat, the direction in which the shift should be prevented, and the like.

  In the first to fifth and seventh embodiments, the upper and lower cords 124-1 and 124-2 are in contact with the side edge of the slat 130 (430, 530) at the intersection of the upper and lower cords 124-1 and 124-2. , 124-2 but the present invention is not limited to this example, the side edge of the slat 130 (430, 530) is not necessarily in contact with the crossing portion. May be

  In the above embodiment, the lower ends of the front and rear longitudinal cords 122-1 and 122-2 are connected to the bottom rail 140 by the ladder holder 170, but the present invention is not necessarily limited to this example. If the cords are connected so as to be displaced to the left and right with respect to the short side direction of the bottom rail, it can be appropriately configured.

  In the above embodiment, the slat 130 is provided with the slat clip 160 for fixing the middle cord 124 obliquely to the short direction of the slat 130, but the present invention is not limited to this example. If the middle cord 124 is disposed obliquely with respect to the short direction of the slat 130, the configuration can be appropriately made.

  The above embodiments, applications, and modifications can be implemented in any combination.

100, 700, 800 Horizontal blind 110 Head box 112 Winding drum 114 Drum holder 116 Rotary shaft 118 Operation code 119a 1st insertion hole 119b 2nd insertion hole 120, 220, 320 Ladder cord 122-1, 222-1, 322- 1, 722-1, 822-1 before vertical code 122-2, 322-2, 722-2, 822-2 after vertical code 124, 224, 324, 724 middle stage code 124-1 upper code 124-2 below Cords 130, 330, 430, 530, 630 Slats 132, 432 Notches 132-1, 332-1, 432-1 Notches in front of 132-2 and Notches after 432-2 Bottom rail 140, Bottom rail 150, 250, 350 , 850 lifting cord 160 slat clip 162 locking claw 164 notch 170 rudder holder 172 connection portion 174 guide groove 226, 326 loop-like portion 532 step difference 532-1 step difference after step 5322-2 elevation code insertion hole

Claims (7)

A horizontal blind comprising a ladder cord suspended from a head box, a plurality of slats supported in an aligned state by the ladder cord, and a bottom rail to which the lower end of the ladder cord is connected,
The ladder cord has a vertical cord hanging down to the front and back of the slat, and a middle cord connecting the front and rear vertical cords,
The front and rear longitudinal cords are disposed so as to be displaced to the left and right with respect to the longitudinal direction of the slat, and the middle cord supports the slat obliquely with respect to the lateral direction of the slat. Horizontal blinds.   The horizontal blind according to claim 1, wherein the slat is provided with a shift prevention unit configured to prevent the shift of the ladder cord.   The horizontal blind according to claim 2, wherein the shift prevention portion is a notch formed on at least one of the front and rear side edges of the slat and through which the vertical cord or the middle cord is inserted. . The middle cord comprises a pair of upper and lower cords, and the upper and lower cords form an intersection.
The slat is inserted between the upper and lower cords, and the side edge of the slat is brought into contact with the crossing portion, and the slat is supported by the upper and lower cords, and supported. Horizontal blinds described in.   The upper ends of the front and rear vertical cords are suspended so as to be displaced to the left and right with respect to the head box when they are led out from the insertion hole of the head box. Horizontal blinds described. The lower ends of the front and rear longitudinal cords are connected to the bottom rail by a ladder holder,
The guide groove for guiding the longitudinal cords on the front and rear is formed on the rudder holder so as to be displaced to the left and right with respect to the short side direction of the bottom rail. Horizontal blinds described.   The horizontal blind according to any one of claims 1 to 6, wherein the slat is provided with a slat clip for fixing the middle cord at an angle with respect to a lateral direction of the slat. .