JP6550382B2 - Horizontal blind - Google Patents

Description

  The present invention relates to a horizontal blind capable of performing elevating operation and angle adjusting operation of a slat by an elevating tape and a ladder cord.

  In the case of horizontal blinds, it is common to use a lifting cord to lift and lower the slat, but instead of a thick lifting cord, there is also a horizontal blind to lift and lower the slat using a thin lifting tape ( See, for example, Patent Document 1). The reason for using the thin lifting tape in this way is as follows. That is, in the case of a blind product with full height (height) or a short product with short full width (short head box width) (especially motorized), the lifting cord is used for the winding drum in the head box. The diameter increases by the thickness of the cord, or a special winding cone is required. For this reason, the size of the head box and the space for the winding cone become problems. On the other hand, in the case of the elevating tape, the thickness does not increase so much even if it is wound on the winding drum as it is. For this reason, there is an advantage that it becomes possible to stack and wind the lifting tape as it is without using a dedicated long winding cone. From this point of view, in the case of a full height blind product or a short full width blind product, a lifting tape is often used to reduce the size of the product (particularly the head box) and the number of parts.

Unexamined-Japanese-Patent No. 04-080491

  However, the above-described conventional horizontal blind has the following problems. That is, in the case of a horizontal blind using a lifting tape, as in the blind described in Patent Document 1, the lifting tape is connected to the bottom rail in a state of being inserted into a tape hole provided at the center in the width direction of the slat. It is common to take However, with such a configuration, when the slat is fully closed, there is a risk that the solar radiation leaks from the tape hole opened at the center of the slat, and the light shielding function of the blind is largely impaired.

  The present invention has been made to solve the above-mentioned problems, and it is possible to miniaturize the product and reduce the number of parts by using a lifting tape, and provide a horizontal blind capable of almost complete light shielding. The purpose is to

  In order to solve the above problems, the present invention supports a plurality of stages of slats so as to be adjustable in angle by a plurality of ladder cords drawn out from the head box and connected to the bottom rail at the lower end, and drawn out from the head box A horizontal blind capable of raising and lowering a slat by a plurality of lifting tapes connected at the lower end to a bottom rail, wherein one or more spaces are provided at the edge of at least one step of the slat, the space being each slat While being closed by overlapping with the edge of the upper or lower slat, the lifting tape is inserted into each space. With this configuration, the elevating tape can raise and lower the slats of a plurality of stages. Then, the angle of the slat can be adjusted by the ladder cord to make the slat fully closed. In this fully closed state, the space section of each slat that is greatly inclined tries to pass sunlight. However, in the present invention, the space portion is configured to be closed by overlapping with the edge portion of the upper or lower slat. As a result, when the slat is fully closed, light is completely blocked and light leakage does not occur through the space.

  Preferably, a plurality of spaces are provided such that the space provided at one edge of the at least one row of slats and the space provided at the other edge deviate more than the length of the space in the lengthwise direction of the slat. The space portion is disposed at both edge portions in the width direction of each slat. In this invention, since the space is disposed at both edges in the width direction of each slat, the upper edge of the lower slat overlaps the space provided at the lower edge of the upper slat. And the space is closed by the lower slat. At this time, the space provided with the lower edge of the upper slat and the space provided with the upper slat of the lower slat are deviated in the lengthwise direction of the slat by more than the length of the space, They do not overlap each other. As a result, when the slat is fully closed, light is completely blocked and light leakage does not occur through the space. Further, since the plurality of spaces are disposed at both edges in the width direction of each slat and each lifting tape is inserted into each space, the lifting tapes are connected to both sides in the width direction of the bottom rail. It has a structure. That is, in the case where the lifting tape is connected to only one side of the bottom rail in the width direction, only the one side of the bottom rail is pulled by the lifting tape when raising the bottom rail, so the bottom rail is inclined. The whole slat is warped. However, in the present invention, since the lifting and lowering tapes are connected to both sides in the width direction of the bottom rail, the pulling force on the bottom rail can be balanced, and the slats will not be bent back.

  Preferably, all of the space portions are insertion holes that form a closed space.

Preferably, a part of the space is a notch forming an open space, and the rest of the space is an insertion hole forming a closed space.

Preferably, the first drum is provided in the head box with one shaft operable to rotate around the central axis in the longitudinal direction by the operation cord outside the head box, and the first drum to which the upper end of the ladder cord is fixed The second drum to which the upper end portion of the lifting and lowering tape is fixed is fixed to one shaft in a concentric state. According to this configuration, when the operation cord rotates one shaft around the central axis, the second drum fixed to the one shaft rotates, and the lifting tape is wound around the second drum. Or unwound. The slat is inclined at a predetermined angle by the movement of the ladder cord whose upper end is fixed to the first drum. Therefore, according to the present invention, the thin lifting tape can be wound on the second drum to raise the slat instead of the thick lifting cord, so that the size of the head box and the space for the winding cone can be secured. There is no need to consider and design. For this reason, it is possible to manufacture a horizontal blind that can be downsized, has a small number of parts, and can be substantially completely shielded from light.

  Preferably, the lifting tape is not inserted into the space of a predetermined number of slats counted from the top slat, and is inserted into the space of the slat below the non-inserted slat. When the lifting tape is inserted into the space of all the slats, when the slats are fully closed, the tensile force in the width direction acts on the upper slats, and the tensile force in the width direction for the lower slats Almost does not occur. In such a state, the inclination of the upper slat is small and there is a possibility that the slat does not close. Therefore, as in the present invention, it is possible to close all the slats by making the elevating and lowering tape not to be inserted into a predetermined number of slats counting from the top slat, further enhancing the light shielding property. Can.

  Preferably, the lifting and lowering tape is not inserted into the space of a predetermined number of slats counted from the lowermost slat, but is inserted into the space of the upper slat from the non-inserted slat. With this configuration, generation of a tensile force in the width direction with respect to the slat near the lowermost stage is prevented, and the closed state of the slat near the lowermost stage is secured.

  Preferably, the space is an insertion hole, and the insertion hole is an edge located in the width direction of the at least one step slat, and an edge located above when the slat is closed, in the slat length direction The elevating tape is inserted into the insertion hole. With this configuration, when the slat is closed, the edge positioned above the slat is supported by the elevating tape inserted into the insertion hole. Therefore, when closed, all the slats are relatively rotated downward around the upper edge, so the slats are closed in a substantially vertical state, thereby further enhancing the light shielding property. be able to.

  Preferably, a plurality of insertion holes are provided.

  As described above in detail, according to the horizontal blind of the present invention, the lifting and lowering tape is used instead of the lifting and lowering cord having a large thickness, and the space through which the lifting and lowering tape is inserted is from the center of the slat to the edge Since the structure is made eccentric, it is possible to reduce the size of the product and the number of parts by using the lifting and lowering tape, and there is an excellent effect of improving the light shielding property by the eccentricity of the space.

It is a perspective view which shows the horizontal blind which concerns on 1st Example of this invention. It is a schematic perspective view which shows the drum mechanism with which the ladder cord and the raising / lowering tape of indoor view right side were connected. It is a schematic perspective view which shows the drum mechanism with which the ladder cord and the raising / lowering tape of indoor view left side were connected. It is a schematic perspective view which shows the drum mechanism with which the ladder cord and the raising / lowering tape of 2 places of indoor view center were connected. It is a perspective view which shows the support state of the slat by a ladder cord. 5 is a cross-sectional view of FIG. 5, (a) of FIG. 6 shows a cross section taken along line A-A of FIG. 5, and (b) of FIG. It is a top view of a slat. It is a schematic sectional drawing of the horizontal blind which shows a totally closed state. It is a schematic reverse view which shows the horizontal blind of a fully closed state seen from the outdoor side. It is sectional drawing for demonstrating the effect | action and effect of a horizontal blind, (a) of FIG. 10 shows the light-shielding effect with respect to the solar radiation which goes to the penetration hole of a lower slat, (b) of FIG. The light shielding effect with respect to the solar radiation which passed the penetration hole is shown. It is a perspective view which shows the horizontal blind which concerns on 2nd Example of this invention. It is a top view of the slat which shows the principal part of 2nd Example. It is sectional drawing for demonstrating the effect | action and effect of 2nd Example. It is a schematic sectional drawing which shows the horizontal blind which concerns on 3rd Example of this invention. It is a top view of the slat which shows the principal part of the horizontal blind which concerns on 4th Example of this invention. It is a modification of the slat applied to 1st Example of this invention. It is a modification of the slat applied to 2nd Example of this invention. It is a modification of the slat applied to 4th Example of this invention. It is the schematic which shows the modification of the connection method of the raising / lowering tape with respect to a bottom rail.

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

Example 1
FIG. 1 is a perspective view showing a horizontal blind according to a first embodiment of the present invention. As shown in FIG. 1, the horizontal blind 1-1 of this embodiment includes a head box 2, four ladder cords 4A to 4D, and four lifting tapes 5A to 5D.

  The ladder cords 4A to 4D can adjust the angle of the slat 3 by supporting the right side portion, the left side portion, and two central portions as viewed from the indoor side of the plurality of stages of slats 3. The ladder cords 4A to 4D are suspended from the drum mechanisms 6A to 6D in the head box 2, and their lower ends are connected to the bottom rail 20. Specifically, as shown by a broken line, one angular shaft 60 (shaft) is rotatably held by a plurality of supports 63 mounted in the head box 2, and the four drum mechanisms 6A to 6D are The four support 63 are attached to the angular shaft 60 in a state of being accommodated respectively. The right end portion of the angular shaft 60 is gear-mechanically coupled to a pulley (not shown) of the operation mechanism 7 via the gearbox 71, and an endless operation cord 70 is hooked on the pulley. The ladder cords 4A to 4D are connected to the drum mechanisms 6A to 6D which can be rotated by the operation mechanism 7 as described above.

  FIG. 2 is a schematic perspective view showing a drum mechanism in which a ladder cord 4A on the right side in the room and a lifting tape 5A are connected, and FIG. 3 is a diagram showing a ladder cord 4B on the left side in the room FIG. 4 is a schematic perspective view showing a drum mechanism, and FIG. 4 is a schematic perspective view showing a drum mechanism in which ladder cords 4C and 4D at two central positions in a room view and elevating tapes 5C and 5D are connected. As shown in FIG. 2 and FIG. 3, the drum mechanism 6A (6B) is configured such that the suspension drum 61 (first drum) and the take-up drum 62 (second drum) are concentrically separated and have different diameters. , And fixed to the angular shaft 60. A long guide hole 63 a is disposed at the bottom of the support 63 and substantially directly below the suspension drum 61 so as to face the radial direction of the suspension drum 61. In addition, one guide roller 65 is disposed below the winding drum 62, and a long guide hole 63b is disposed at the bottom of the support 63 and substantially directly below the guide roller 65. A large hole 2 a including two guide holes 63 a and 63 b is provided at the bottom of the head box 2.

  As shown in FIG. 1, the ladder cord 4A (4B) comprises a pair of warp yarns 41, 42 and a pair of weft yarns 43, 44 connected between the warp yarns 41, 42 in each step. ing. And as shown in FIG.2 and FIG.3, the metal ring 61a is fitted by the outer peripheral surface of the suspension drum 61 by the elastic force, and the upper end part of the 1st and 2nd warp yarn 41 and 42 is this metal. It is attached to both ends of the ring 61a. The first and second warp yarns 41 and 42 are pulled out of the suspension drum 61 through the guide holes 63 a and to the lower side of the head box 2, and the lower ends thereof are connected to the bottom rail 20. Further, as shown in FIG. 4, the ladder cord 4C (4D) is connected to a drum mechanism 6C (6D) having the same structure as the drum mechanism 6A (6B). Specifically, the upper end portions of the warp threads 41 and 42 of the ladder cord 4C (4D) are held by the metal ring 61a of the hanging drum 61 of the drum mechanism 6C (6D), and the lower portion of the head box 2 is through the guide hole 63a. It has been pulled out. The lower end portions of the warp yarns 41 and 42 are connected to the bottom rail 20.

  On the other hand, the lifting tapes 5A to 5D are thin tapes for moving the slat 3 up and down, and are pulled out from the head box 2 along the respective ladder cords 4A to 4D as shown in FIG. The bottom rail 20 is connected. Specifically, as shown in FIGS. 2 and 3, after the upper end portion of the lifting tape 5A (5B) is attached to the winding drum 62 and hung on the guide roller 65, the head box is passed through the guide hole 63b. It is pulled out below 2. The lifting tape 5A (5B) is suspended along the warp yarn 41 of the ladder cord 4A (4B), and the lower end thereof is connected to the bottom rail 20. In the lifting tape 5C (5D), as shown in FIG. 4, the upper end thereof is attached to the winding drum 62 of the drum mechanism 6C (6D), and after being hung on the guide roller 65, through the guide hole 63b. , Is pulled out below the head box 2. The lifting tape 5C (5D) is suspended along the warp yarn 41 of the ladder cord 4C (4D), and the lower end portion thereof is connected to the bottom rail 20.

  5 is a perspective view showing the slat 3 supported by the ladder cords 4A to 4D, FIG. 6 is a cross-sectional view of FIG. 5, and FIG. 7 is a plan view of the slat 3. The multistage slats 3 are supported by the ladder cords 4A to 4D as described above. Specifically, as shown in FIG. 5 and FIG. 6, the end portion on the warp yarn 41 side of the weft thread 43 of the ladder cords 4A to 4D is positioned below the end portion on the warp yarn 41 side of the weft thread 44 , Is connected to the warp 41. The end of the weft yarn 43 on the side of the warp yarn 42 is connected to the warp yarn 42 so as to be positioned above the end of the weft yarn 44 on the side of the warp yarn 42. The slat 3 is inserted between the wefts 43 and 44 and is sandwiched by the wefts 43 and 44 from above and below.

  As described above, the slat 3 supported by the ladder cords 4A to 4D has four space portions 31 to 34, as shown in FIG. Each space 31 (32 to 34) is a rectangular insertion hole which is closed in a plan view and forms a closed space. The length a of each insertion hole 31 (32 to 34) is set slightly larger than the width of the lifting tape 5A (5B to 5D), and the width b is larger than the thickness of the lifting tape 5A (5B to 5D) It is set to. Of the insertion holes 31 to 34, the two insertion holes 31 and 32 are both ends in the lengthwise direction of the outer edge 3a (one edge) and of the ladder cords 4A and 4B (see FIG. 5) It is disposed near each other. The remaining insertion holes 33 and 34 are disposed at two positions in the central portion of the indoor side edge 3b (the other edge) and in the vicinity of the ladder cords 4C and 4D (see FIG. 5). . Further, the positional relationship between the insertion holes 31 and 32 and the insertion holes 33 and 34 is set so that the insertion holes 31 and 32 and the insertion holes 33 and 34 do not face each other from the viewpoint of light shielding property described later. Specifically, the shift amount δ in the length direction between the insertion hole 31 (32) and the insertion hole 33 (34) is set to the length a or more of the insertion holes 31 (32 to 34). The lifting and lowering tapes 5A to 5D are respectively inserted into such insertion holes 31 to 34. Specifically, as shown in FIG. 5, the lifting tapes 5A to 5D are suspended from the head box 2 along the ladder cords 4A to 4D respectively, and as shown in (a) of FIG. The tape 5A (5B) was inserted through the insertion hole 31 (32), and the lifting tape 5C (5D) was inserted through the insertion hole 33 (34) as shown in FIG. 6 (b).

  Next, the operation and effects exhibited by the horizontal blind of this embodiment will be described. In FIG. 1, when the operation cord 70 is operated and the pulley of the operation mechanism 7 is rotated, the rotation is transmitted to the angular shaft 60 via the gearbox 71. Therefore, when the winding drums 62 of the drum mechanisms 6A to 6D are rotated by the rotation of the angular shaft 60, the lifting tapes 5A to 5D are wound or rewound on the winding drums 62. When the lifting tapes 5A to 5D are taken up by the winding drum 62, the bottom rail 20 and the slat 3 are pulled up, and when the lifting tapes 5A to 5D are taken back from the winding drum 62, the bottom rail 20 and the slat 3 Falls. Further, when the angular shaft 60 of the drum mechanisms 6A to 6D is rotated by the operation of the operation cord 70, the suspending drum 61 is integrally rotated, and the slat 3 is rotated via the ladder cords 4A to 4D. Then, when the slat 3 is rotated in the vertical direction, the suspending drum 61 idles relative to the metal ring 61a (see FIG. 2) so that further rotation of the slat 3 in the same direction is prevented. It has become. When the slat 3 is pulled up or down to a desired height and the operating cord 70 is operated in the reverse direction to rotate the angular shaft 60 in the reverse direction, the suspending drum 61 is rotated and the slat 3 is slat 3 tilts to the desired angle. As described above, according to the horizontal blind 1-1 of this embodiment, the thin lifting tapes 5A to 5D are wound around the winding drum 62 instead of the thick lifting cord, and the slat 3 and the bottom rail 20 are obtained. Since it is configured to be raised, it can be designed without considering the size of the head box 2 and securing the space of the winding cone, etc. As a result, the head box 2 can be miniaturized and the number of parts can be reduced. .

  FIG. 8 is a schematic cross-sectional view of a horizontal blind showing a fully closed state, and FIG. 9 is a schematic back view showing the horizontal blind as viewed from the outdoor side. In FIG. 8, in order to facilitate understanding, the two insertion holes 31 (32) and the insertion holes 33 (34) are clearly shown on the cross section of one slat 3, and the ladder cords 4A to 4D are described. Was omitted. As described above, by operating the operation cord 70, the slat 3 and the bottom rail 20 can be lowered to the lowermost stage, and as shown in FIGS. 8 and 9, the slat 3 can be fully closed. In this state, outdoor sunlight L is directed to the slat 3 side, passes through the insertion holes 31 to 34, and tries to enter the room.

  FIG. 10 is a cross-sectional view for explaining the function and effect of the horizontal blind 1-1. In the horizontal blind 1-1 of this embodiment, as shown in FIG. 7, the insertion holes 31 to 34 are dispersed in the width direction of the slat 3, and the insertion holes 31 to 34 are shifted in the length direction. It has become. Therefore, in the fully closed state, as shown in FIGS. 9 and 10A, the lower edge 3a of the upper slat 3-1 is provided at the upper edge 3b of the lower slat 3-2. It overlaps with (34). Therefore, since the solar radiation L directed from the outdoor side to the insertion hole 33 (34) of the lower slat 3-2 is blocked by the lower edge 3a of the upper slat 3-1, the sunlight L is transmitted through the insertion hole 33 (34 ) And never enter the room. Further, as shown in (b) of FIG. 10, the sunlight L passes through the insertion hole 31 (32) provided at the lower edge 3a of the upper slat 3-1. However, the upper edge 3b of the lower slat 3-2 is in a state of being overlapped behind the insertion hole 31 (32). For this reason, since the solar radiation L which passed the penetration hole 31 (32) of the upper stage slat 3-1 is interrupted | blocked by the upper edge part 3b of the lower stage slat 3-2, solar radiation L does not approach indoors. Thus, according to the horizontal blind 1-1 of this embodiment, it is possible to almost completely prevent light leakage due to the insertion holes 31 to 34 when the slats are fully closed.

  Further, in FIG. 1, if the bottom rail 20 is supported only by the lifting tape 5A, 5B on the outdoor side and is not supported by the lifting tape 5C, 5D, the bottom rail 20 is the lifting tape 5A, 5B when rising. It rotates around the connection point and tilts. For this reason, the whole slat 3 will turn back. However, in this embodiment, the outdoor side edge of the bottom rail 20 is supported by the lifting tapes 5A, 5B, and the indoor side edge of the bottom rail 20 is supported by the lifting tapes 5C, 5D. There is no risk that the slat 3 as a whole will be warped by the inclination of 20.

  Furthermore, in this embodiment, as shown in FIG. 5, the lifting tapes 5A to 5D are suspended from the head box 2 along the ladder cords 4A to 4D. That is, the lifting tape 5A (5B to 5D) is brought close to the warp yarn 41 of the ladder cord 4A (4B to 4D). As a result, even if the lifting tape 5A (5B to 5D) swings in the longitudinal direction of the slat 3 at the time of lifting, the lifting tape 5A (5B to 5D) does not move the ladder cord 4A (4B to 4D) Is caught on the weft yarns 43 and 44 of the belt to prevent movement. As a result, the lateral displacement of the slat 3 due to the lateral movement of the lifting tapes 5A to 5D does not occur.

  By the way, in FIG. 1, when the operation cord 70 is operated and the winding drum 62 is rotated, the suspending drum 61 is also rotated integrally with the winding drum 62, but at the time of lowering, only the lifting tape 5A-5D is the bottom rail 20 tension is applied and not applied to the ladder cords 4A to 4D. However, when the bottom rail 20 is lowered to the lowest point and the ladder cords 4A to 4D are completely extended, the tension by the bottom rail 20 is transferred to the ladder cords 4A to 4D. At this time, since the hanging drums 61 of the ladder cords 4A to 4D are in a rotating state, the ladder cords 4A to 4D not only incline the slat 3 in the fully closed direction but also incline the bottom rail 20. Therefore, in order to make the bottom rail 20 substantially horizontal with the bottom rail 20 lowered to the lowermost position and the slat 3 fully closed, tension from the bottom rail 20 is applied to the ladder cords 4A to 4D at the lowermost position. It is necessary to set as not. The following setting is possible as an example. The lengths of the lifting tapes 5A, 5B when the bottom rail 20 is at the lowermost position and the lengths of the lifting tapes 5C, 5D are set to be equal. Furthermore, the lengths of the ladder cords 4A to 4D are set such that the lengths of the ladder cords 4A to 4D are longer than the lifting tapes 5A to 5D at the lowermost position. As a result, when the bottom rail 20 is lowered and reaches the lowermost position, the ladder cords 4A to 4D are left loose and support the bottom rail 20 horizontally only by the lifting tapes 5A to 5D. As described above, by horizontally supporting the bottom rail 20 at the lowermost point, at least the lowermost slats 3 reliably contact the upper surface of the horizontal bottom rail 20 to realize a high light shielding property. Further, by keeping the bottom rail 20 horizontal, the slat 3 is supported by the bottom rail 20, so that the slat 3 can be prevented from falling.

(Example 2)
Next, a second embodiment of the present invention will be described. FIG. 11 is a perspective view showing a horizontal blind according to a second embodiment of the present invention, and FIG. 12 is a plan view of a slat showing the main part of this embodiment. As shown in FIG. 11, the horizontal blind 1-2 of this embodiment is different from the first embodiment in that the through holes for passing the lifting and lowering tapes are provided only at the indoor edge of the slat. That is, also in the horizontal blind 1-2 of this embodiment, as in the horizontal blind 1-1 of the first embodiment, the ladder cords 4A to 4D supporting the slat 3 and the lifting tapes 5A to 5D are the head box 2 The lifting and lowering and rotation of the slat 3 is performed by lifting and lowering and rotating these lifting tapes 5A to 5D and the ladder cords 4A to 4D by the operation cord 70 of the operating mechanism 7, which is suspended from the internal drum mechanisms 6A to 6D. It can be made to

  However, in the horizontal blind 1-2 of this embodiment, only two insertion holes 33 and 34 are provided in the slat 3 as shown in FIG. 12. Specifically, two insertion holes 33, 34 are provided at two positions in the central portion of the indoor side edge 3b located at the upper side when the slat 3 is closed, and the insertion holes are provided in the outdoor side edge 3a. Not provided. Therefore, as shown in FIG. 11, the lifting tapes 5C and 5D are suspended along the ladder cords 4C and 4D in the state of being inserted into the insertion holes 33 and 34, and the lifting tapes 5A and 5B are of the slat 3 It is suspended along the ladder cords 4A and 4B while being located outside the edge 3a.

  Next, the operation and effects of the horizontal blind 1-2 of this embodiment will be described. FIG. 13 is a cross-sectional view for explaining the function and effect of this embodiment. In the horizontal blind 1-1 of the first embodiment, as shown in FIG. 1, the lifting tapes 5A, 5B are inserted into the insertion holes 31, 32 of the slat 3, and the lifting tapes 5C, 5D are insertion holes 33, 34. It is the structure penetrated by. Therefore, when the slat 3 is fully closed, the lower edge 3a of the slat 3 is pulled by the lifting tape 5A (5B) inserted through the insertion hole 31 (32), as shown by the two-dot chain line in FIG. A large gap G may occur between the upper slat 3 and the lower slat 3. On the other hand, in the horizontal blind 1-2 of this embodiment, only the lifting tape 5C (5D) is inserted into the insertion hole 33 (34) on the indoor side. Therefore, when the slat 3 is fully closed, the pulling force by the lifting tape 5A (5B) does not act on the lower edge 3a of the slat 3, and the upper edge 3b of the slat 3 is inserted into the insertion hole 33 (34) It will be in the state supported by the lifting tape 5C (5D). As a result, as shown by the solid line, the slat 3 relatively rotates downward about the upper edge 3b. As a result, the gap G between the upper slat 3 and the lower slat 3 becomes very small, and the light shielding property of the blind is further enhanced. The other configuration, operation and effects are the same as those of the first embodiment, and the description thereof will be omitted.

(Example 3)
Next, a third embodiment of the present invention will be described. FIG. 14 is a schematic sectional view showing a horizontal blind according to a third embodiment of the present invention. In FIG. 14, in order to facilitate understanding, the two insertion holes 31 (32) and the insertion holes 33 (34) are clearly shown on the cross section of one slat 3 and the ladder cords 4A to 4D are described. Was omitted. In the first embodiment, as shown in FIG. 1, the lifting tape 5A (5B) and the lifting tape 5C (5D) are inserted through all the slats 3 from the upper slat 3 to the lower slat 3 31 (32) and the insertion holes 33 and 34 respectively. Therefore, when the slat 3 is closed, the lifting tape 5A (5B) pulls the slat 3 in the left direction in FIG. 14, and the lifting tape 5C (5D) pulls the slat 3 in the right direction. Although this pulling force hardly occurs to the lower slat 3, the influence of the front and rear drooping widths of the lifting tapes 5A to 5D from the head box 2 to 1 to 6 slats 3 counted from the upper stage Pull force works. For this reason, as shown by a two-dot chain line in FIG. 14, the inclination of one to six slats 3-1 to 3-6 is limited, and the light shielding property between these slats 3-1 to 3-6 is impaired. There is a risk of Therefore, in this embodiment, as shown by the solid line in FIG. 14, the lifting tapes 5A to 5D are not inserted into the upper slats 3-1 to 3-6, and the lower slats 3-7 and later slats It was set as the composition made to penetrate. Specifically, the lifting tape 5A (5B) and the lifting tape 5C (5D) are not inserted into the insertion holes 31 (32) and the insertion holes 33, 34 of the slats 3-1 to 3-6. On the other hand, in the lower stage slats 3-7 to 3-n-1 (n is an integer of 8 or more) of the insertion holes 31 (32) and the insertion holes 33, 34, the lifting tape 5A (5B) and lifting Insert the tape 5C (5D). Further, the lifting tapes 5A to 5D are not inserted through the lowermost slat 3-n. This is because the lower end portions of the lifting tapes 5A to 5D are connected to the bottom rail 20, so that the slat 3-n in the vicinity of the bottom rail 20 exerts a large tensile force by the lifting tapes 5A to 5D in FIG. It is from.

  With this configuration, as shown by the solid line in FIG. 14, when the slats are lowered and fully closed, all the slats 3-1 to 3-n from the upper stage to the lower stage are inclined at a desired angle, and Almost complete light shielding is realized across the lower stage. The rest of the configuration, operation and effects are the same as in the first and second embodiments, so the description thereof will be omitted.

(Example 4)
Next, a fourth embodiment of the present invention will be described. FIG. 15 is a plan view of a slat showing an essential part of a horizontal blind according to a fourth embodiment of the present invention. In this embodiment, the type of space provided in the slat is different from the space provided in the slats of the first to third embodiments. That is, part 31 ', 32' of space part is a notch, and the remaining space parts 33 and 34 are penetration holes. Specifically, as shown in FIG. 15, the space portions 31 ′ and 32 ′ are U-shaped notches that open to the outdoor side in a plan view and form an open space. These notches 31 ′ and 32 ′ are disposed at both ends in the lengthwise direction of the edge 3a on the outdoor side and in the vicinity of the ladder cords 4A and 4B (see FIG. 1 and the like). On the other hand, the space portions 33 and 34 are insertion holes which form a closed space, and these insertion holes 33 and 34 are two places at the central portion of the edge portion 3b on the indoor side and ladder cords 4C and 4D (see FIG. 1) and so on. The other configuration, operation and effects are the same as those of the first to third embodiments, and the description thereof will be omitted.

(Modification)
Next, a modification of the above embodiment will be described. FIG. 16 is a modification of the slat applied to the first embodiment of the present invention, FIG. 17 is a modification of the slat applied to the second embodiment of the present invention, and FIG. 18 is a modification of the slat applied to the second embodiment of the present invention. 18 is a modification of the slat applied to the fourth embodiment of the present invention.

  In the first embodiment, as shown in FIG. 7, the insertion holes 31 and 32 are disposed on the edge 3a side and at both ends of the slat 3, and the insertion holes 33 and 34 are formed at the edge 3b. In the example shown in FIG. 16A, the insertion holes 33 and 34 are disposed on the side of the edge 3 b and the slat 3 is disposed. The insertion holes 31 and 32 can be disposed at both ends, and the insertion holes 31 and 32 can be disposed at the edge 3 a side and at two central portions of the slat 3. Moreover, as shown to (b) of FIG. 16, the penetration holes 31-35 can also be arrange | positioned alternately at the edge parts 3a and 3b side of the slat 3. FIG.

  In the second embodiment described above, as shown in FIG. 12, the insertion holes 33 and 34 are disposed at the inner edge 3b only at two central portions of the slat 3, respectively. As shown in FIG. 17, three or more insertion holes 33 to 35 may be disposed along the indoor side edge 3 b.

  In the fourth embodiment, as shown in FIG. 15, the notches 31 'and 32' are disposed at both ends of the edge 3a of the slat 3, and the insertion holes 33 and 34 are formed at the edge 3b. In the example shown in FIG. 18A, the notches 31 ′ and 32 ′ are provided at two central portions on the edge 3 a side of the slat 3 as shown in FIG. The insertion holes 33 and 34 may be respectively disposed, and may be disposed at both ends on the edge 3 b side. Further, as shown in (b) of FIG. 18, the insertion holes 31 and 32 are disposed at both ends on the edge 3 a side of the slat 3, and the notches 33 ′ and 34 ′ are on the edge 3 b side. It can also be arranged at two central parts of the Furthermore, as shown in (c) of FIG. 18, the insertion holes 31 and 32 are respectively disposed at two central portions on the edge 3 a side of the slat 3, and the notches 33 ′ and 34 ′ are formed at the edge 3 b It can also be disposed at each end of the side.

  The present invention is not limited to the above embodiment, and various modifications and changes can be made within the scope of the invention. For example, although the example which applied this invention to the horizontal blind of a uniaxial winding type was shown in the said Example, it is needless to say that it is applicable also to the horizontal blind which can operate a ladder cord and a lift tape independently. is there.

  In the third embodiment, the lifting tapes 5A to 5D are not inserted through the uppermost six slats 3-1 to 3-6, but the number of non-inserting slats is 1 to 6 It may be within the range and can be determined according to the tension applied to the lifting and lowering tapes 5A to 5D. Similarly, although the lifting tapes 5A to 5D are not inserted through one slat 3-n from the uppermost stage, the number thereof may also be determined by the tension applied to the lifting tapes 5A to 5D in the vicinity of the bottom rail 20. it can.

  Furthermore, when the lifting tape 5A (5B) and the lifting tape 5C (5D) are connected to the side surface 20a and the side surface 20b of the bottom rail 20, as shown by the solid line in FIG. The 5A (5B) or the lifting tape 5C (5D) may pull the slat 3 to the outer side of the bottom rail 20 to deteriorate the light shielding property. Therefore, in the third embodiment, the elevating tapes 5A to 5D are not inserted into the lowermost slat 3. However, when the lifting tape 5A (5B) or the lifting tape 5C (5D) is connected to the center side of the bottom rail 20, as shown by the two-dot chain line in FIG. Work on the center side. Therefore, in such a case, even if the elevating tapes 5A and 5B are inserted into the through holes 31 to 34 of the lowermost slat 3 and the slats 3 near the lower slats 3, there is no problem of light shielding deterioration.

  1-1-1-3 ... horizontal blind, 2. ... head box, 3, 3-1-3-n ... slat, 3a, 3b ... edge, 4A-4D ... ladder Cords 5A to 5D Lifting tape 6A to 6D Drum mechanism 7 Operation mechanism 20 Bottom rail 31 to 35 Insertion hole 31 'to 34'. .. notches, 41, 42 ... warp threads, 43, 44 ... weft threads, 60 ... angular axes, 61 ... hanging drums, 61a ... metal rings, 62 ... winding drums, 63 ... support, 65 ... ... guide roller, 63a, 63b ... guide hole, 70 ... operation code, 71 ... gear box, G ... gap, L ... solar radiation.

Claims (8)

A plurality of slats are supported in an adjustable manner by a plurality of ladder cords drawn out from the head box and connected to the bottom rail at the lower end, and a plurality of elevators drawn out from the head box and connected to the bottom rail at the lower end A horizontal blind that can raise and lower the slat by tape
A plurality of spaces are provided for each slat so that the space provided at one edge of each slat and the space provided at the other edge deviate more than the length of the space in the longitudinal direction of the slat. Are disposed at both edges in the width direction , and each lifting tape is inserted into each space portion,
Horizontal blinds characterized by In the horizontal blind according to claim 1 ,
All of the above-mentioned space parts are insertion holes which form a closed space,
Horizontal blinds characterized by In the horizontal blind according to claim 1 ,
A part of the above-mentioned space part has a notch which forms an open space,
The remainder of the space is an insertion hole that forms a closed space,
Horizontal blinds characterized by The horizontal blind according to any one of claims 1 to 3 .
One shaft body that can be operated to rotate around a central axis in the length direction by an operation cord outside the head box is provided in the head box,
The first drum to which the upper end portion of the ladder cord is fixed and the second drum to which the upper end portion of the elevating tape is fixed are fixed concentrically to the one shaft body.
Horizontal blinds characterized by The horizontal blind according to any one of claims 1 to 4 .
The lifting tape was not inserted into the space of a predetermined number of slats counted from the top slat, but was inserted into the space of the slat below the non-inserted slat.
Horizontal blinds characterized by The horizontal blind according to any one of claims 1 to 4 .
The lift tape was not inserted into the space of a predetermined number of slats counted from the lowermost slat, but was inserted into the space of the upper slat from the non-inserted slat.
Horizontal blinds characterized by A plurality of slats are supported in an adjustable manner by a plurality of ladder cords drawn out from the head box and connected to the bottom rail at the lower end, and a plurality of elevators drawn out from the head box and connected to the bottom rail at the lower end A horizontal blind that can raise and lower the slat by tape
One or more insertion holes are provided along the length direction of the slats at the edge located in the width direction of each slat and at the edge located above when the slats are closed,
Each lifting tape was inserted into each insertion hole,
Horizontal blinds characterized by In the horizontal blind according to claim 7 ,
A plurality of the insertion holes are provided,
Horizontal blinds characterized by