JP6703026B2 - Horizontal blinds - Google Patents

Description

The present invention relates to a horizontal blind that raises and lowers a plurality of stages of slats suspended and supported by a ladder cord by using a plurality of lifting cords.

Horizontal blinds can raise and lower multiple stages of slats supported by ladder cords suspended from the headbox using multiple lifting cords, and by operating the ladder cords to tilt the slats, The amount of solar radiation taken into the room can be adjusted.

For example, a bottom rail is arranged at the lower end of the ladder cord, and the lifting cord attached to this bottom rail is pulled into and out of the headbox to raise and lower the bottom rail to move the slat. Can be raised and lowered.

As this horizontal blind, an insertion hole for inserting an elevating cord is provided in the center of the slat in the front-rear direction so that the slat can be moved up and down, and the operation unit is configured to be movable in the longitudinal direction on the front face of the head box. A technique for improving the property is disclosed (for example, refer to Patent Document 1).

In such a horizontal blind, the ladder cord is engaged with the notch of each slat in order to suppress lateral displacement corresponding to the longitudinal direction of each slat.

JP-A-2000-64746

As an example of a typical horizontal blind, in the horizontal blind in Patent Document 1, for all the lifting cords to be arranged, an insertion hole for inserting the lifting cord is provided at a substantially central portion of the slats in the front-rear direction, and the slats are lifted. It is possible. Particularly, in the horizontal blind in Patent Document 1, since an insertion hole for inserting the elevating cord is provided at a substantially central portion of the slat in the front-rear direction, light leakage from the insertion hole occurs even when the slat is tilted to be in a shielded state. It can happen. The problem of such light leakage is also the same in a glass sash in which a horizontal blind is provided inside double glazing.

Further, by engaging the ladder cord with the notch of each slat, lateral displacement of the slat can be suppressed, but such notch can also cause light leakage.

On the other hand, when utilizing slats made of a hard material such as wood, for example, there is a demand to install a plate-shaped member of the same quality as the slats on the front surface of the head box in order to utilize the design of the slats. To meet such a demand, it is conceivable to attach a plate-like member of the same quality as the slats to the front surface of the head box, but it is desirable to improve it by another means from the viewpoint of workability. Particularly, in the horizontal blind in Patent Document 1, although the operability can be improved by configuring the operation unit to be movable in the longitudinal direction on the front surface of the head box, for example, when using wooden slats, the wooden slats are used. It is not possible to attach wooden slats to the front of the headbox in order to take advantage of the slats' design.

And, since such a wooden slat does not have flexibility, unlike a slat having a slightly curved thin plate shape made of a bendable soft material made of aluminum used in a general horizontal blind, For example, when an attempt is made to engage a ladder cord with a long wooden slat, the assembling property cannot be said to be easy.

In view of the above-mentioned problems, the present invention provides a horizontal blind for reducing the influence of light leakage from slats.

The horizontal blind of one embodiment according to the present invention is a horizontal blind that raises and lowers a plurality of stages of slats suspended and supported by a ladder cord by using a plurality of lifting cords, and a plurality of sheets are hung at a plurality of positions in the left-right direction. A ladder cord for supporting the slat and a plurality of lifting cords suspended at a position near the ladder cord, and among the plurality of raising and lowering cords, lifting and lowering suspended near each end of the slat in the left-right direction. The cord is inserted into an elongated hole-shaped insertion hole extending in the front-rear direction of each slat, and the plurality of hanging lifting cords is composed of three or more, except for the lifting cord hanging near each end. The other lifting cords are hung along the front-back direction edge of each slat, and each of the insertion holes has a length equal to or greater than the weft length of the ladder cord most recently positioned with respect to the corresponding left-right direction end of the slat. The plurality of lifting cords are connected to a cord equalizer by being led out to the outside from a cord outlet provided as an operating portion via a cord stopper device provided inside the head box. The lifting cord that is fixed from the side closer to the left and right ends of the head box than the position of the operating portion of the head box is inserted into the cord stopper device in the same direction as other lifting cords. It is characterized in that it is guided inside the head box .

Further, in the horizontal blind according to one aspect of the present invention, the plurality of lifting cords are arranged so as to maintain the center of gravity of each slat or bottom rail.

Further, in the horizontal blind according to one aspect of the present invention, the hanging of the other lifting cord includes the hanging of two slats in the front and rear.

Further, in the horizontal blind according to one aspect of the present invention, an operating portion is provided near one end or both ends in the left-right direction of the head box that supports the ladder cord and the plurality of raising and lowering cords, and the raising and lowering of the three or more cords is performed. Of the cords, the lifting cord arranged so as to hang down closest to the lateral end portion side of the slat hangs from the side closer to the lateral end portion of the head box than the position of the operating portion of the head box. It is characterized by being supported as.

Further, in the horizontal blind of one aspect according to the present invention, among the plurality of lifting cords, the lifting cords arranged so as to hang down closest to the left and right end portions of the slats are each passed through the insertion hole, It is guided mainly toward the left and right end portions of the slats with respect to the weft threads of the ladder cords that respectively support the slats, and is guided toward the left and right center portion of the slats with respect to the weft threads of the ladder cord at predetermined steps of the slats. It is characterized by being

The horizontal blind according to one aspect of the present invention is a horizontal blind that raises and lowers a plurality of stages of slats suspended and supported by a ladder cord by using a plurality of lifting cords, and is suspended at a plurality of positions in the left-right direction. A ladder cord that supports a plurality of slats, and a plurality of lifting cords that are suspended in the vicinity of the ladder cord are provided, and among the plurality of lifting cords, the suspension cords are suspended near the ends of the slats in the left-right direction. The elevating cord is inserted into an elongated hole-shaped insertion hole extending in the front-rear direction of each slat, and the plurality of hanging elevating cords are composed of three or more, and the elevating cord hanging near each end portion is lifted. Elevating cords other than the cords are hung along the front and rear edges of each slat, and are arranged so as to hang down closest to the left and right end portions of the slats among the plurality of elevating cords. With respect to the lifting cord, in a plan view of the slat in a state where the lifting cord is located at one edge side of the insertion hole, a first line segment that connects one edge portion in the front-rear direction of the slat and the position of the lifting cord in the shortest direction, and line length consisting sum of the second line segment connecting the corners of the slat in the longitudinal direction other end portion continuous with the end portion side of the elevating code and the slats, Ri Oh large than the weft length of ladder cord, the A plurality of lifting cords are led out to the outside from a cord outlet provided as an operating portion via a cord stopper device provided inside the head box and are connected and fixed to a cord equalizer. lift code suspended from the side close to the left-right direction end portions of the headbox than position, that is guided in the interior of the headbox to be inserted from the same direction as the other lifting cord to the cord stopper device It is characterized by

Further, in the horizontal blind of one aspect according to the present invention, between the weft thread length in the ladder cord closest to the insertion hole, the position of the hole center of the insertion hole, and the corresponding lateral end of the slat. As a relationship with the slat protrusion length corresponding to the distance, the weft length in the ladder cord is 0.9 times or more and 1.0 times or less the slat protrusion length.

Further, in the horizontal blind according to one aspect of the present invention, the plurality of lifting cords are led out through an operation rod extending from a cord lead-out port and attached to a cord equalizer, and the cord equalizer is attached at a lower limit position of a bottom rail. It is characterized in that the amount of pulling out of the plurality of lifting cords from the cord lead-out port is regulated in the state of being in contact with the lower end of the operating rod to prevent the slats from coming off from the ladder cord.

The horizontal blind according to one aspect of the present invention is a horizontal blind that raises and lowers a plurality of stages of slats suspended and supported by a ladder cord by using a plurality of lifting cords, and is suspended at a plurality of positions in the left-right direction. A ladder cord that supports a plurality of slats, and a plurality of lifting cords that are suspended in the vicinity of the ladder cord are provided, and among the plurality of lifting cords, the suspension cords are suspended near the ends of the slats in the left-right direction. The elevating cord is inserted into an elongated hole-shaped insertion hole extending in the front-rear direction of each slat, and the plurality of hanging elevating cords are composed of three or more, and the elevating cord hanging near each end portion is lifted. Other lifting cords other than the cord hang down along the edge of each slat in the front-rear direction, and each of the insertion holes has a weft thread of the ladder cord most recently positioned with respect to the corresponding left-right end of the slat. It provided at a position close long or more, the provided on the edge of either or both of the longitudinal direction of the slat notches, characterized in that it is provided only the uppermost slat ..

The horizontal blind according to one aspect of the present invention is a horizontal blind that raises and lowers a plurality of stages of slats suspended and supported by a ladder cord by using a plurality of lifting cords, and is suspended at a plurality of positions in the left-right direction. A ladder cord that supports a plurality of slats, and a plurality of lifting cords that are suspended in the vicinity of the ladder cord are provided, and among the plurality of lifting cords, the suspension cords are suspended near the ends of the slats in the left-right direction. The elevating cord is inserted into an elongated hole-shaped insertion hole extending in the front-rear direction of each slat, and the plurality of hanging elevating cords are composed of three or more, and the elevating cord hanging near each end portion is lifted. Other lifting cords other than the cord hang down along the edge of each slat in the front-rear direction, and each of the insertion holes has a weft thread of the ladder cord most recently positioned with respect to the corresponding left-right end of the slat. It is characterized in that it is provided at a position that is longer than or equal to each other and that the notches provided at one or both edges in the front-rear direction of each slat are provided only for the lowermost slat. And

Further, in the horizontal blind of an aspect according to the present invention, the plurality of lift cords of Ri tape-like der, and winding means to all the lift cords wound can up uniaxial rotation, each end in the lateral direction of the slat It is characterized in that the head box is provided with a turning mechanism for turning the tape surface of the raising and lowering cord which is hung near the portion so as to be turned toward the slat by rotating the tape surface by approximately 90 degrees.

Further, in the horizontal blind of an aspect according to the present invention, the plurality of lift cords of Ri tape-like der, drooping of the other lift cord, on the one hand one of the front and rear direction is provided on at least the uppermost slat Alternatively, it includes a hanging portion that engages with a notch provided on both edges.

According to the horizontal blind of the present invention, light leakage can be effectively suppressed. Preferably, when a slat made of a plate-shaped hard material (for example, wooden) is used, its designability and assemblability can be improved, and lateral displacement and twist of the slat can be suppressed.

It is a perspective view showing a schematic structure of a horizontal blind of a 1st embodiment by the present invention. It is a top view of the slat in the horizontal blind of 1st Embodiment by this invention. (A), (b) is explanatory drawing at the time of the tilt operation of the slat in the horizontal blind of 1st Embodiment by this invention. (A), (b) is explanatory drawing at the time of the shielding state of the slat in the horizontal blind of 1st Embodiment by this invention. It is a side view which shows the partial schematic structure of the horizontal blind of 1st Embodiment by this invention. It is a partial side sectional view explaining a shielding effect in a horizontal blind of a 1st embodiment by the present invention. (A), (b) is a partial side sectional view which explains in more detail the shielding effect in the horizontal blind of 1st Embodiment by this invention, and its comparative example. (A), (b) is a top view explaining the side shift / twist control effect in a horizontal blind of a 1st embodiment by the present invention. It is a perspective view showing a schematic structure of a horizontal blind of a 2nd embodiment by the present invention. (A), (b) is a sectional side view explaining the assembly method of the plate-shaped member of Example 1 in the horizontal blind of 2nd Embodiment by this invention. (A), (b) is a sectional side view explaining the assembly method of the plate-shaped member of Example 2 in the horizontal blind of 2nd Embodiment by this invention. (A), (b) is a side surface sectional view explaining the assembly method of the plate member of Example 3 in the horizontal blind of a 2nd embodiment by the present invention. It is a front view which shows schematic structure in the horizontal blind of 3rd Embodiment by this invention. (A), (b) is a partial side view in the horizontal blind of the 3rd Embodiment by the present invention at the right-and-left end side and the central part side, respectively. (A), (b) is a partial front view which respectively shows the relationship between the slat insertion hole and the slat overlap region at the time of tilt in the horizontal blind of 3rd Embodiment by this invention. It is a perspective view explaining distribution of an up-and-down cord in a horizontal blind of a 3rd embodiment by the present invention. (A), (b) is a partial cross-sectional front view explaining operation|movement of the operation stick and the cord equalizer in the horizontal blind of 3rd Embodiment by this invention, respectively. (A) is a top view which shows arrangement|positioning of the slat and each code|cord in the horizontal blind of 3rd Embodiment by this invention, (b) is a top view which shows the comparative example. (A), (b) is a top view which shows the arrangement|positioning of the slat and each code|cord of the modifications 1 and 2 in the horizontal blind of 3rd Embodiment by this invention, respectively. (A), (b), (c) is a top view which shows the arrangement|positioning of the slat and each code|cord of modification 3,4,5 in the horizontal blind of 3rd Embodiment by this invention, respectively. (A), (b) is a partial cross-sectional front view for explaining the routing related to the hanging of the lifting cord in the horizontal blind of the third embodiment according to the present invention, and the conditions for defining the position of the slat insertion hole. It is a partial plan view explaining. It is a partial perspective view explaining an operation about conditions which specify a position of an insertion hole of a slat in a horizontal blind of a 3rd embodiment by the present invention. It is a perspective view explaining distribution of an up-and-down cord in a horizontal blind of a 4th embodiment by the present invention. (A) is a plan view of a slat in a horizontal blind according to a fourth embodiment of the present invention, (b) and (c) are cross-sectional side views of the vicinity of its holding member, and (d) is a view of the vicinity of its bottom rail. It is a sectional side view. (A), (b) is a perspective view explaining the winding shaft of the tape-shaped raising/lowering cord in the horizontal blind of 5th Embodiment by this invention, and the top view of the slat, respectively. (A), (b) is respectively the top view of the slat of the modification in the horizontal blind of 5th Embodiment by this invention, and the front view which shows the outline of the horizontal blind of the said 5th Embodiment. (A) is a front view which shows schematic structure of the horizontal blind of 6th Embodiment by this invention, (b), (c) is a top view which shows the structural example of the guide rail with respect to a slat. (A), (b) is the front view which shows schematic structure of the glass sash provided with the horizontal blind of 7th Embodiment by this invention, and its sectional plan view, respectively.

Hereinafter, the horizontal blind of each embodiment according to the present invention will be described with reference to the drawings. In addition, in the specification of the present application, with respect to the perspective view of the horizontal blind shown in FIG. 1 or FIG. 7, the upper side and the lower side in the drawing are respectively in the upward direction (or the upper direction) and the downward direction (or the lower direction) according to the suspension direction of the slats. Side), the left direction in the figure is defined as the left side of the horizontal blind, and the right direction in the figure is defined as the right side of the horizontal blind. In addition, the side where the perspective view of FIG. 1 or FIG. 7 is viewed is the front side (inside the room), and the opposite side is the rear side (or the outside).

[First Embodiment]
First, a horizontal blind according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 8. FIG. 1 is a perspective view showing a schematic configuration of a horizontal blind according to a first embodiment of the present invention. FIG. 2 is a plan view of the slats 4 in the horizontal blind of the first embodiment according to the present invention. 3(a) and 3(b) are explanatory views of the horizontal blind of the first embodiment according to the present invention when the slat 4 is tilted. 4A and 4B are explanatory views of the horizontal blind of the first embodiment according to the present invention when the slat 4 is in the shielded state. FIG. 5 is a side view showing a partial schematic configuration of the horizontal blind according to the first embodiment of the present invention. And, FIG. 6 is a partial side sectional view for explaining the shielding effect in the horizontal blind of the first embodiment according to the present invention. FIGS. 7A and 7B are a partial side sectional view and a comparative example, respectively, for explaining the shielding effect in the horizontal blind of the first embodiment according to the present invention in more detail. FIGS. 8A and 8B are plan views illustrating the lateral shift/twist suppression effect in the horizontal blind of the first embodiment according to the present invention.

As shown in FIG. 1, the horizontal blind of the present embodiment is provided with ladder cords 7L, 7M, and 7R that are respectively hung from the left end side, the center side, and the right end side in the longitudinal direction of the head box 1. A large number of slats 4 are supported. A bottom rail 8 is suspended and supported at the lower end of each ladder cord 7L, 7M, 7R. In addition, a plurality of lifting cords 6L, 6M, 6R are hung from the head box 1 adjacent to the ladder cords 7L, 7M, 7R on the outdoor side or the indoor side, and bottom rails are provided at the lower ends of the lifting cords 6L, 6M, 6R. 8 is attached.

The mechanism for adjusting the angle of the multi-stage slat 4, the mechanism for moving the multi-stage slat 4 up and down, and the operating means for operating these mechanisms can be realized in various known forms. Since it is not directly related to the gist of the present invention, an example thereof will be briefly described.

A support member for suspending and supporting the ladder cords 7L, 7M, 7R and the lifting cords 6L, 6M, 6R is arranged in the head box 1, and a square rod-shaped drive shaft is inserted through the support member (Fig. (Not shown). A tilt drum is rotatably supported by such a supporting member, and the drive shaft is inserted into the tilt drum so as not to be relatively rotatable. Therefore, when the drive shaft is rotated, the tilt drum is rotated, and the angles of the slat 4 in multiple stages suspended and supported by the ladder cords 7L, 7M, 7R are adjusted.

Further, in order to allow the elevating cords 6L, 6M, 6R to be drawn into the head box 1 or drawn from the head box 1, the supporting member is attached to the support member so as not to be rotatable relative to the drive shaft. A take-up shaft is provided (not shown). Therefore, when the drive shaft is rotated, the tilt drum is rotated, and the angles of the slat 4 of multiple stages suspended and supported by the ladder cords 7L, 7M, 7R are tilted in a direction substantially vertical to the horizontal direction. After that, the raising/lowering cords 6L, 6M, 6R are wound or unwound by the winding shaft, and the slat 4 can be raised/lowered by raising/lowering the bottom rail 8.

An operation pulley for operating the rotation of the drive shaft is housed on the right end side of the head box 1, and an endless operation cord 5 mounted on the operation pulley is provided on the front surface on the right end side of the head box 1. It hangs down from the provided outlet 1a. A stopper device that can lock the rotation of the drive shaft is provided in the head box 1. Therefore, by operating the operation code 5, the rotation of the drive shaft is operated, and the angle of the slat 4 in multiple stages suspended and supported by the ladder codes 7L, 7M, 7R via the support member is adjusted. Alternatively, the elevating cords 6L, 6M, 6R can elevate and lower the slat 4 in multiple stages.

In the horizontal blind of the present embodiment, as shown in FIG. 2, among the plurality of lifting cords 6L, 6M, 6R, the lifting cords 6L, 6R have one edge in the lateral direction of each slat 4 (outer edge). Part) is configured to be inserted into a long hole-shaped insertion hole 4a provided in the vicinity thereof and extending downward in the lateral direction, and the elevating cord 6M is arranged along the other edge of the slats 4 in the lateral direction. It is configured to hang down. It is preferable that the long-hole-shaped insertion hole 4a is formed so as to extend within a range from one lateral edge (outer outdoor edge) of each slat 4 to the lateral center of each slat 4. Is. Then, each slat 4 is mounted on weft yarns 7a, 7b connected at a predetermined interval between a pair of ladder cords 7L (or 7M, 7R) arranged and suspended at a plurality of positions in the longitudinal direction of the head box 1. It is placed and supported respectively.

In particular, the long hole-shaped insertion hole 4a does not interfere with the tilting operation of each slat 4 and, at the time of being tilted so that each slat 4 is in the shielded state, at least the insertion hole 4a is provided at the edge of each slat 4. It is formed at a position where a part is shielded.

More specifically, as shown in FIG. 3, in order to insert the elevating cords 6L, 6R, a long hole-shaped insertion hole 4a is formed in the vicinity of the lateral edge of each slat 4 in the lateral direction (that is, the front-rear direction). By forming the slat 4, even when the slats 4 are in the horizontal state (see FIG. 3A) or the slats 4 are in the tilted state (see FIG. 3B), the lifting cords 6L and 6R are suspended. It can be stretched in the vertical direction related to the above without any burden. Further, since the long hole-shaped insertion hole 4a is provided in the vicinity of the outer edge of the outdoor side, as shown in FIG. 3B, light leakage from the insertion hole 4a is suppressed and the light shielding property against external light is enhanced. You can

That is, as shown in FIG. 4( a ), the elongated insertion hole 4 a extends from one lateral edge (outer lateral edge) of each slat 4 to the center of each slat 4 in the lateral direction. When the slats 4 are shielded, the slats 4 are tilted in a direction substantially perpendicular to the horizontal direction, and at this time, at least one of the insertion holes 4a is formed at the edge of each slat 4. The part is shielded. As will be described later, the entire insertion hole 4a may be shielded by the edge of each slat 4. Thereby, the light leakage from the insertion hole 4a can be suppressed, and the light shielding property against external light can be improved. Further, by providing the insertion hole 4a in the vicinity of the outdoor side edge portion, as an effect other than the improvement of the light shielding property, the insertion hole 4a is lower in the fully closed state like the state of FIG. 4A (or FIG. 3B). Since it is almost hidden by the slat 4, the design is improved.

Further, as shown in FIG. 4B, it is preferable that the short diameter D of the long hole-shaped insertion hole 4a is formed to be substantially the same as the cross-sectional diameter d of the lifting cords 6L and 6R to be inserted. Thereby, even if the entire insertion hole 4a is not shielded by the edge portion of each slat 4, it is possible to effectively suppress light leakage from the insertion hole 4a. The "minor diameter D of the insertion hole 4a that is substantially the same as the cross-sectional diameter d of the lifting cords 6L and 6R" means a diameter that does not hinder the movement of the lifting cords 6L and 6R with respect to the insertion hole 4a, and is, for example, short. The diameter D is made completely the same as the cross-sectional diameter d, or the minor diameter D is slightly expanded from the cross-sectional diameter d. Further, by making the diameters of the ladder cords 7L and 7R substantially the same as the minor diameter D of the long hole-shaped insertion hole 4a or by making the diameter larger than that, it is possible to more reliably suppress light leakage.

In addition to the three lifting cords 6L, 6M, and 6R as in the present embodiment, it is possible to use four or more lifting cords. In this case, at least two elevating cords of the plurality of elevating cords are inserted into the elongated hole insertion holes 4a and caused to hang down, and at least one of the elevating cords other than the at least two elevating cords is The lifting cord is hung along the other edge of each slat 4 in the lateral direction.

At this time, among the plurality of elevating cords, the elevating cords that hang down at the “most recent position from both ends” in the longitudinal direction of each of the slats 4 of the plurality of stages (in the example of FIGS. 1 and 2, the elevating cord 6L , 6R) is configured to be inserted into a long hole-shaped insertion hole 4a provided in the vicinity of one lateral edge (outer lateral edge) of each slat 4 and extending in the lateral direction. All the lifting cords (lifting cord 6M in the example of FIGS. 1 and 2) other than the lifting cords that are inserted into the hole-shaped insertion holes 4a do not use cutouts or insertion holes, and It is preferable to make it hang down along the other edge (inner side edge) in the direction. As a result, it is possible to more effectively suppress light leakage and suppress lateral displacement and twist of the slat 4, which will be described in detail later.

In the horizontal blind of the present embodiment, each slat 4 is made of a plate-shaped hard material (for example, wooden), and the arrangement positions of the ladder cords 7L, 7M, 7R and the lifting cords 6L, 6R, 6M according to the slat 4 are arranged. As a result, it is possible to improve the assemblability while suppressing the light leakage, and effectively suppress the lateral displacement and the twist of the slat.

As shown in FIGS. 1 and 2, a pair of ladder cords 7L, 7M, 7R are hung so as to face each other in the lateral direction of the slat 4 (that is, the front-back direction), and between the pair of ladder cords 7L, The weft threads 7a, 7b intersecting in an X-shape are connected at a predetermined interval, and as shown in FIG. 5, the slats 4 are placed on the weft threads 7a, 7b. Similarly, between the pair of ladder cords 7M (or 7R), weft yarns 7a and 7b intersecting in an X shape are connected at a predetermined interval, and the slats 4 are placed on the weft yarns 7a and 7b.

In a general horizontal blind, there is also a form in which a slat having a slightly curved thin plate shape made of a bendable soft material made of aluminum is used, and when such a bendable slat is used, Since it is relatively easy to insert the slats between the weft threads 7a and 7b intersecting in an X shape by utilizing their flexibility, their assemblability does not become a great burden. Further, in the conventional horizontal blind, lateral slippage of the slats may be suppressed by engaging the ladder cords, not the lifting cords, with the notches of the slats.

On the other hand, the slat 4 in the horizontal blind of the present embodiment has a flat plate shape made of a non-flexible hard material such as wood, as shown in FIGS. 1 and 5. It cannot be said that it is easy to assemble the flat plate slat 4 made of this hard material while inserting it between the weft threads 7a and 7b intersecting in the X shape. Therefore, in the horizontal blind of the present embodiment, the flat slats 4 made of this hard material are configured to be placed on the weft threads 7a and 7b intersecting in the X shape, whereby the assemblability can be improved. .. In addition, the slats 4 in the horizontal blind of the present embodiment are not provided with notches for engaging the weft threads 7a, 7b of the ladder cords 7L, 7M, 7R, and not only suppress the light leakage but also the slats. 4 is also easily installed on the weft threads 7a and 7b of the respective ladder cords 7L, 7M and 7R.

Normally, if the flat plate-shaped slats 4 are simply placed on the wefts 7a and 7b without providing a notch, the lateral displacement of the slats 4 in the longitudinal direction (that is, the left-right direction) and the lateral direction of the slats 4 ( That is, a twist acting in the front-rear direction may occur, and a problem may occur during the lifting operation and the tilt operation of the slat 4, but the lateral blind of the present embodiment can also suppress such lateral displacement and twist.

That is, in the horizontal blind of the present embodiment, as shown in FIGS. 1 and 2, the lifting cord 6L hung from the head box 1 at the most recent position from both ends of each slat 4 in the longitudinal direction (that is, the left-right direction). , 6R, the slats 4 are inserted through the long-hole-shaped insertion holes 4a provided in the lateral direction (that is, the front-rear direction) in the vicinity of the outer side edge portion in the lateral direction (that is, the front-rear direction) to the outer side of the upper surface of the bottom rail 8. The through holes 8L and 8R provided in the vicinity of the edge portion are engaged and attached to the bottom surface side. Then, at least one of the lifting cords other than the lifting cords 6L and 6R hanging at the most recent position from both ends in the longitudinal direction (that is, the left-right direction) of each slat 4 (that is, the lifting cord 6M in this example). Is hung along the lateral edge of each slat 4 in the lateral direction (that is, the front-back direction), and is attached to the bottom rail 8 along the front side surface thereof by being locked to a mounting portion 8M provided on the bottom surface. To do. That is, it is possible to configure a plurality of lifting cords to hang between the lifting cords 6L and 6R, but at least one of the lifting cords is configured to hang along the indoor side edge portion.

In the horizontal blind of the present embodiment configured as described above, as shown in FIG. 4, at least a part of the insertion hole 4a is shielded by the edge of each slat 4, thereby suppressing light leakage from the insertion hole 4a. However, it is more preferable that the entire insertion hole 4a is shielded by the edge of each slat 4. As a result, it is possible to reliably suppress light leakage from the insertion hole 4a and improve the light shielding property against external light. For example, as shown in FIG. 6, since the slat 4 according to the present embodiment is thick, the upper end A of the lower slat 4 needs to be located to hide the entire insertion hole 4a during tilting (fully closed). The insertion hole 4a is formed so as to be at a position horizontal to the position of the upper edge B of the insertion hole 4a of the upper slat 4 or higher. At this time, the lifting cord 6R (or 6L) may be slightly loosened as shown in FIG.

Further, by providing the insertion hole 4a in the vicinity of the outdoor side edge of the slat 4, it is possible to improve the shielding property during tilting (when fully closed). For example, when the insertion hole 4a is provided in the vicinity of the outdoor side edge of the slat 4 as in the present embodiment shown in FIG. 7A, even when the hanging cord 6R (or 6L) droops in a substantially vertical direction ( Since the lifting cord 6R (or 6L) and the ladder cord 7R (or 7L) do not hinder the tilting motion of the slat 4, the shielding property is improved. On the other hand, as shown in FIG. 7B, when the insertion hole 4a is provided in the vicinity of the indoor side edge of the slat 4, when the lifting cord 6R (or 6L) droops substantially in the vertical direction (see the broken line arrow), Since the tilt operation of the slat 4 can be hindered, its shielding property may be adversely affected. Therefore, by providing the insertion hole 4a in the vicinity of the outdoor side edge of the slat 4, it is possible to improve the shielding property during tilting (when fully closed).

By thus providing the insertion hole 4a in the slat 4 and disposing a plurality of lifting cords 6L, 6R, 6M as shown in FIG. 2, the slats 4 simply placed on the weft threads 7a, 7b are Also, as shown in FIGS. 6 and 7, while improving the shielding property at the time of tilting (when fully closed), lateral displacement (see FIG. 8A) and twist (see FIG. 8B) can be suppressed. become.

Then, in order to further improve the assembling property while suppressing lateral displacement and twisting, as shown in FIG. It is preferable that the weft yarns 7a and 7b are knitted in 5 steps. In addition, it is preferable that the lifting cords 6L and 6R be woven into the weft yarns 7a and 7b so as to be symmetric with respect to each slat 4 with respect to the central portion in the longitudinal direction thereof as a base point. For example, as shown in FIG. 5, with respect to a certain slat 4, the lifting cords 6L and 6R are inserted through the corresponding weft yarns 7a and 7b toward the center portion. As for the other slats 4, the lifting cords 6L and 6R are inserted through the corresponding weft threads 7a and 7b on the outer edge side opposite to the central portion. In this way, the weaving of the elevating cords 6L and 6R with respect to the respective weft threads 7a and 7b is made symmetrical with respect to each slat 4, whereby lateral displacement and twist of each slat 4 can be suppressed.

Similarly, the elevating cord 6M can be constructed by knitting the weft yarns 7a and 7b in predetermined steps (five steps in the illustrated example) with respect to the slats 4 having a plurality of steps. Is preferably inserted between the weft threads 7a and 7b (see FIG. 2). Alternatively, when knitting between the wefts 7a and 7b between the continuous upper and lower slats 4 and inserting the upper and lower slats 4, the lifting cord 6M is inserted on the right side of the weft 7a and the left side of the weft 7b, and the lower slats are inserted. In No. 4, the elevating cord 6M may be inserted into the left side of the weft thread 7a and the right side of the weft thread 7b to knit (not shown).

As described above, at least the elevating cords 6L and 6R are knitted on the wefts 7a and 7b at predetermined steps, whereby the lateral displacement and twist of the slats 4 can be suppressed and the assemblability can be further improved. ..

Further, since the penetrating portions 8L and 8R are provided on the upper surface of the bottom rail 8 in accordance with the hanging positions of the plurality of lifting cords 6L and 6R, respectively, the plurality of lifting cords 6L and 6R are hung substantially vertically. be able to. As a result, the lifting and tilting operations of each slat 4 can be facilitated.

As described above, in the horizontal blind of the present embodiment, the pair of ladder cords 7L, 7M, 7R facing each other in the lateral direction (that is, the front-back direction) of each slat 4 are provided at a plurality of positions in the longitudinal direction of the head box 1. And a plurality of lifting cords 6L, 6M, 6R are hung from the head box 1 in the vicinity of each pair of ladder cords 7L, 7M, 7R, and at least two lifting cords, preferably For the elevating cords 6L and 6R hanging from the head box 1 at the most recent positions from both ends of each slat 4 in the longitudinal direction (that is, the left-right direction), one edge in the lateral direction of each slat (outer lateral edge) Section) provided in the vicinity of the elongate hole-like insertion hole 4a extending in the lateral direction and hanging down, and at least one of the elevating cords other than the elevating cords 6L and 6R (that is, the elevating cord in this example). 6M) was configured to hang down along the other edge (inner side edge) of each slat 4.

Thereby, it is possible to suppress light leakage when the slats 4 are shielded. Then, the elongated hole-shaped insertion hole 4a is formed at a position where at least a part of the insertion hole 4a is shielded by the edge portion of each slat 4 when the slats 4 are tilted so as to be in the shielded state. As a result, light leakage when the slats 4 are blocked can be further suppressed. More preferably, when each slat 4 is tilted so as to be in a shielded state, it is formed at a position where at least all of the insertion holes 4a are shielded by the edge portion of each slat 4, or in the shape of an elongated hole. The light leakage can be further suppressed by forming the minor diameter D of the insertion hole 4a to be substantially the same as the cross-sectional diameter d of the lifting cord 6L (or 6R) to be inserted.

Further, the horizontal blind of the present embodiment is made of a plate-shaped hard material as the slats 4, and the slats 4 are formed on the weft threads 7a, 7b connected at a predetermined interval between each pair of ladder cords 7L, 7M, 7R. It was configured to be placed. As a result, it is possible to improve the assemblability when using the flat plate-shaped slats 4 made of such a hard material.

Further, it is preferable that the elevating cords 6L and 6R be hung so as to be woven into the weft threads 7a and 7b at every predetermined step of the plurality of slats 4. Thereby, the assemblability can be further improved.

Further, in the horizontal blind of the present embodiment, since the insertion hole 4a has a long hole shape extending in the lateral direction of the slats 4 (that is, the front-rear direction), the flat plate-shaped slats 4 of the hard material are simply placed on the weft threads 7a and 7b. When it is configured to be mounted on the slat 4, the pair of ladder cords 7L and 7R can be easily affected by the tilt operation in order to use the effect of suppressing the lateral shift and the twist. At the same time, it is possible to stretch the bottom rail 8 in the vertical direction related to the suspension without any burden. The horizontal blind of the present embodiment is configured such that the lifting cords 6L and 6R hanging from the head box 1 are attached to the upper surface of the bottom rail 8 installed below the plurality of slats 4. As a result, the lifting and tilting operations of each slat 4 can be facilitated.

Although the present invention has been described above with reference to the example of the specific embodiment, the present invention is not limited to the example of the above-described embodiment, and various modifications can be made without departing from the technical idea thereof. For example, the weft yarns 7a and 7b intersecting in an X shape have been described as an example, but the weft yarns 7a and 7b may be parallel without intersecting or may be one weft yarn.

Further, two or more lifting cords may be configured to hang between the lifting cords 6L and 6R, and at least one of the lifting cords may be configured to hang along the indoor side edge portion.

[Second Embodiment]
Next, a horizontal blind according to a second embodiment of the present invention will be described with reference to FIGS. 9 to 12. FIG. 9 is a perspective view showing a schematic configuration of a horizontal blind according to a second embodiment of the present invention. 10A and 10B are side cross-sectional views for explaining a method of assembling the plate member 40 of Example 1 in the horizontal blind of the second embodiment according to the present invention. 12A and 12B are side cross-sectional views illustrating a method of assembling the plate member 40 of Example 3 in the horizontal blind according to the second embodiment of the present invention.

As shown in FIG. 9, the horizontal blind of the second embodiment can be configured in the same manner as the horizontal blind of the first embodiment except for the form of the head box 1. Therefore, the same components are designated by the same reference numerals, and detailed description thereof will be omitted.

That is, for example, when using a flat plate-like slat 4 made of a hard material such as wood, it is desired to install a plate-like member 40 of the same quality as the slat 4 on the front surface of the head box 1 in order to utilize the design of the slat 4. There is a request to. In order to meet such a demand, it is conceivable to attach the plate member 40 of the same quality as the slats 4 to the front surface of the head box 1, but it is desirable to improve the workability by another means.

Therefore, in the horizontal blind of the second embodiment, the plate member 40 of the same quality as the slats 4 can be detachably engaged with the front surface of the head box 1. The plate-shaped member 40 can utilize the slat 4 itself. Further, in the example shown in FIG. 9, the operation cord 5 is configured to hang from the front surface of the head box 1 through the notch 40a of the plate member 40.

In particular, the plate member 40 can be configured to be engaged with and installed in the groove portion 1b provided on the front surface of the head box 1 by fitting or dropping.

(Example 1)
FIG. 10 shows a method of assembling the plate-shaped member 40 of the first embodiment in which the plate-shaped member 40 is engaged and installed on the front surface of the head box 1 by fitting. As shown in FIGS. 10(a) and 10(b), the groove portion 1b provided on the front surface of the head box 1 is a claw-shaped upper side extending from the top surface side and the bottom surface side of the main body portion of the head box 1 to the front surface. It is formed by the protruding piece 11 and the lower protruding piece 12, and first, the lower side portion of the plate-shaped member 40 in the lateral direction is engaged with the lower protruding piece 12 (see FIG. 10A), and then the plate-shaped member. The upper side of 40 in the lateral direction is pressed against the upper protruding piece 11 to fit the plate member 40 into the groove 1b of the head box 1 (see FIG. 10B). After assembly, they will fit so that they will not come off easily, but they can also be removed because they are not attached. In this way, since the plate member 40 can be assembled to the front surface of the head box 1 from the indoor side, that is, from the front surface of the horizontal blind, the workability thereof is facilitated. Further, by using the slat 4 itself as the plate-shaped member 40, its designability can be further improved.

(Example 2)
FIG. 11 shows, as a modified example of the first embodiment, a method of assembling the plate-shaped member 40 of the second embodiment in which the plate-shaped member 40 is engaged and installed on the front surface of the head box 1 by fitting. In the head box 1, a support member 15 that supports the above-described unillustrated take-up shaft and the like is disposed, and the support member 15 has a claw-shaped upper protrusion that projects from the indoor top to the front. 15a is formed. Then, as shown in FIGS. 11A and 11B, the head box 1 is provided with an opening 1c capable of exposing the upper projection piece 15a, and the supporting member 15 is opened from the upper opening of the head box 1. Is elastically deformed so that the upper protrusion 15a is exposed from the opening 1c. When the support member 15 having the upper protruding pieces 15a is installed in the head box 1 as described above, the groove portion 1b provided on the front surface of the head box 1 is provided with the upper protruding pieces 15a and the bottom surface side of the head box 1. It is formed by the claw-shaped lower projection piece 12 extending to the front surface. First, the lower side portion of the plate member 40 in the lateral direction is engaged with the lower projection piece 12 (see FIG. 11(a)), The plate-shaped member 40 can be fitted into the groove 1b of the head box 1 by pressing the upper side portion of the plate-shaped member 40 in the lateral direction against the upper protruding piece 11 (see FIG. 11B). .. In this way, since the plate member 40 can be assembled to the front surface of the head box 1 from the indoor side, that is, from the front surface of the horizontal blind, the workability thereof is facilitated. Further, by using the slat 4 itself as the plate-shaped member 40, its designability can be further improved.

(Example 3)
FIG. 12 shows an assembling method of the plate-shaped member 40 of the third embodiment in which the plate-shaped member 40 is engaged and installed on the front surface of the head box 1 by dropping it. As shown in FIGS. 12( a) and 12 (b ), the groove portion 1 b provided on the front surface of the head box 1 is a claw-shaped upper side extending from the upper surface side and the bottom surface side of the main body portion of the head box 1 to the front surface. It is formed by the protruding piece 13 and the lower protruding piece 12, and first, the short side upper side portion of the plate-like member 40 is inserted into the upper portion of the groove portion 1b formed by the upper protruding piece 13 (see FIG. 12(a)). After that, the lower side portion of the plate member 40 in the lateral direction is dropped into the lower portion of the groove portion 1b formed by the lower protruding piece 12 (see FIG. 12B). In this case, it can be easily removed even after assembly, and can be removed because it is not attached. As described above, also in this embodiment, since the plate member 40 can be assembled to the front surface of the head box 1 from the indoor side, that is, from the front surface of the horizontal blind, the workability thereof is facilitated. Further, by using the slat 4 itself as the plate-shaped member 40, its designability is further improved.

As described above, the horizontal blind of the present embodiment can improve the overall design including the head box 1 while including all the functions and effects of the first embodiment. In particular, since the plate member 40 can be assembled to the front surface of the head box 1 from the front surface of the horizontal blind without sticking, the workability thereof is facilitated. Further, by making it detachable, for example, the plate member 40 can be easily changed or replaced. Then, by using the slat 4 itself as the plate member 40, the designability thereof can be further improved, and further, the cost increase can be prevented.

The present invention is not limited to the example of the embodiment shown in FIG. 9, and may be applied to horizontal blinds of other forms, and various modifications can be made without departing from the technical idea thereof. For example, the operation cord 5 may not be configured to hang from the front surface of the head box 1, and may be hung from the left and right end portions of the head box 1, or may be configured to hang from the bottom surface of the head box 1. ..

Further, the horizontal blind of each of the above-described embodiments may be configured to be electrically operated by an operation from an external switch or the like, instead of being operated by the operation code 5.

[Third Embodiment]
Next, a horizontal blind according to a third embodiment of the present invention will be described with reference to FIGS. 13 to 22. In the present embodiment, as will be described below, the effect of light leakage is reduced from a practical point of view even when using a slightly curved thin plate slat made of aluminum, not limited to a wooden flat plate slat. Configured to be able to.

FIG. 13: is a front view which shows schematic structure of the horizontal blind 100 of 3rd Embodiment by this invention. As shown in FIG. 13, the horizontal blind 100 according to the present embodiment includes the ladder cords 7L, 7M, and 7R that are hung from the left end side, the center side, and the right end side in the longitudinal direction of the head box 1, respectively. A large number of slats 4 are supported. A bottom rail 8 is suspended and supported at the lower end of each ladder cord 7L, 7M, 7R. In addition, a plurality of lifting cords 6L, 6M, 6R are suspended from the head box 1 in parallel with the respective ladder cords 7L, 7M, 7R, and a bottom rail 8 is attached to the lower ends of the lifting cords 6L, 6M, 6R. Has been done.

Elevating cords 6R and 6L respectively hung from the left end portion side and the right end portion side in the longitudinal direction of the head box 1 are provided in a substantially central portion of the slat 4 in the front-rear direction as shown in FIG. 14(a). The lower ends of the elevating cords 6L and 6R are attached to the bottom rail 8 by being inserted into the insertion holes 4a. Here, in the present embodiment, the insertion holes 4a through which the elevating cords 6R and 6L are inserted are formed in a long hole shape extending in the front-rear direction of each slat 4, and for example, the insertion holes 4a through which the elevating cords 6R are inserted are slats. 4 may be a length that overlaps a part of the overlapping area of the slat 4 in the tilted state (see FIG. 15A), or a length that overlaps a part of the overlapping area of the slat 4 in the tilted state of the slat 4. (See FIG. 15( b )), that is, the length of the insertion hole 4 a may be a length corresponding to the application as a movable range of the slat angle.

On the other hand, as shown in FIG. 14(b), the lifting cord 6M hanging from the central portion side in the longitudinal direction of the head box 1 is a pair of lifting cords 6M-which is a pair of hanging slats 4 arranged in the front-rear direction. It is composed of 1,6M-2. The elevating cords 6M-1 and 6M-2 that hang down in the front and rear two arrangements are ring-shaped engagements called pico provided on the warp threads of the ladder cord 7M along the front and rear edges of the slats 4. It is inserted through the member 27 and is configured to support the bottom rail 8 in a loop shape. The elevating cords 6M-1 and 6M-2 that hang down in two front and rear arrangements can be configured to be attached to the bottom rail 8 without forming a loop shape, but by forming such a loop shape, the front and rear 2 The relative length adjustment of the lifting cords 6M-1 and 6M-2 in this arrangement is unnecessary. That is, by adjusting the length of one of the elevating cords 6M-1 and 6M-2, the length of the other cord is also adjusted, and the length adjustment becomes easy, which improves the assemblability. There are advantages.

In addition, by constructing the lifting cord 6M composed of such lifting cords 6M-1 and 6M-2 arranged in front and rear, three or more lifting cords maintain the position of the center of gravity of each slat 4 or bottom rail 8. The bottom rail 8 and the slat 4 can be stably moved up and down, which will be described in detail later.

The mechanism for adjusting the angle of the multi-stage slat 4, the mechanism for moving the multi-stage slat 4 up and down, and the operating means for operating these mechanisms can be realized in various known forms. An example in which the equalizer 21 and the operating rod 22 can be operated will be described.

As shown in FIG. 13, a tilt drum 25 that suspends and supports the ladder cords 7L, 7M, and 7R is disposed in the head box 1, and a hexagonal rod-shaped tilt shaft 26 is inserted into the tilt drum 25. There is. The tilt drum 25 is rotatably supported in the head box 1, and the tilt shaft 26 is inserted into the tilt drum 25 so as not to be relatively rotatable. Therefore, when the tilt shaft 26 rotates, the tilt drum 25 rotates, and the angles of the slat 4 in multiple stages suspended and supported by the ladder cords 7L, 7M, and 7R are adjusted.

In this example, the operating rod 22 is suspended and supported by the operating portion 24 provided near the right end of the head box 1. When the operating rod 22 is rotated, the tilt shaft 26 is rotated via the gear mechanism arranged in the head box 1. Therefore, the angle of each slat 4 can be adjusted by rotating the operating rod 22.

The other ends of the plurality of lifting cords 6R, 6L, 6M-1, 6M-2 each having one end attached to the bottom rail 8 are guided inside the head box 1 as shown in FIG. It is led out to the outside from a cord lead-out port provided as an operation unit 24 via a cord stopper device 28 provided in the head box 1. The other end of each of the plurality of lifting cords 6R, 6L, 6M-1, 6M-2 led out of the head box 1 has a cylindrical operating rod 22 suspended and supported by the operating portion 24. It is inserted through the inside, and is connected and fixed to the cord equalizer 21.

In the illustrated example, the grip 22a is attached to the lower end side of the tubular operation rod 22, and the operator can rotate the operation rod 22 by gripping the grip 22a. The lifting cords 6R, 6L, 6M-1, 6M-2 are hung downward from the operating rod 22 via the grip 22a, and the cord equalizer 21 is attached to the lower end thereof.

Therefore, as shown in FIG. 17A, for example, pulling down the cord equalizer 21 and pulling out the lifting cords 6R, 6L, 6M-1 and 6M-2 from the head box 1, the bottom rail 8 is pulled up. The slat 4 can be pulled up. Further, when the pulling-out operation of the lifting cords 6R, 6L, 6M-1, 6M-2 is stopped, the cord stopper device 28 is actuated to prevent the bottom rail 8 and the slats 4 from descending due to their own weight, and the slats 4 are moved. Suspended and supported at a desired position. The operation rod 22 is provided with two cord hooks 23 at which the lift cords 6R, 6L, 6M-1, 6M-2 can be hooked so as not to get in the way.

When the cord stopper device 28 pulls out the lifting cords 6R, 6L, 6M-1, 6M-2 from the head box 1 and then releases it, the cord stopper device 28 moves the lifting cords 6R, 6L, 6M-1, 6M-2 to the head box 1. The locked state prevents the pull-in and prevents the bottom rail 8 and the slat 4 from falling by their own weight. If the lifting cords 6R, 6L, 6M-1, 6M-2 are pulled out slightly from this state, the locked state is released and the lifting cords 6R, 6L, 6M-1, 6M-2 are pulled into the head box 1. In addition, the bottom rail 8 and the slat 4 can be moved down.

When the cord equalizer 21 is released after the bottom rail 8 and the slat 4 are pulled up to the desired height, the cord stopper device 28 operates to prevent the bottom rail 8 from falling by its own weight. When lowering the bottom rail 8 and the slats 4, the cord equalizer 21 is released while the cord stopper device 28 is deactivated by pulling the cord equalizer 21 slightly downward. Then, due to the weight of the bottom rail 8 and the slats 4, the lifting cords 6R, 6L, 6M-1, 6M-2 that are hung down through the operation rod 22 are drawn into the head box 1, and the bottom rail 8 descends by its own weight. At the same time, the cord equalizer 21 is pulled up. Then, when the bottom rail 8 descends to the lower limit, as shown in FIG. 17B, the cord equalizer 21 comes into contact with the lower end of the operating rod 22, that is, the cap 22b at the lower end of the grip 22a, or reaches a position close thereto. ..

The lifting cords 6R, 6L, 6M-1 and 6M-2 are pulled into the operating rod 22, and the cord equalizer 21 moves to the lower end of the operating rod 22, that is, the lower end of the grip 22a, as shown in FIG. 17(b). The lengths of the elevating cords 6R, 6L, 6M-1, 6M-2 are adjusted so that the bottom rail 8 reaches the lower limit when the bottom rail 8 comes into contact with the cap 22b of the above or reaches an adjacent position.

The horizontal blind 100 of the third embodiment configured as described above is provided with the elongated insertion holes 4a extending in the front-rear direction of each slat 4 so that the influence of light leakage can be reduced from a practical viewpoint. The elevating cords 6R, 6L inserted are hung near the respective ends in the longitudinal direction of the slat 4, and further elevating cords other than the elevating cords 6R, 6L hung near the respective ends, that is, the elevating cords. 6M-1 and 6M-2 are adapted to hang down along the edges of each slat 4 in the front-rear direction.

As a result, in the horizontal blind 100 of the present embodiment, the insertion holes 4a that cause light leakage are formed in a region that occupies most of the installation area of the horizontal blind 100 in a state where the horizontal blind 100 is shielded by the tilt of each slat 4. Therefore, the light shielding property is improved as compared with the conventional technique.

Further, in the horizontal blind 100 of the present embodiment, the insertion holes 4a of each slat 4 are configured to be provided in the vicinity of each end in the longitudinal direction of the slat 4 as much as possible, and in particular, the insertion holes 4a of each slat 4 are It is provided at a position close to the corresponding end of the slat 4 by the weft length of the ladder cord 7R (or 7L) or more. Therefore, the presence of a mounting surface such as a window frame on which the horizontal blind 100 is usually installed can reduce the influence of light leakage from the insertion holes 4a provided in the vicinity of each end in the longitudinal direction of the slat 4. Since there are many, the light blocking effect at the time of installation is improved.

In addition, in the horizontal blind 100 of the present embodiment, when the operating portion 24 is provided near one end or both end portions in the longitudinal direction of the head box 1, the operating portion 24 hangs closest to the lateral end portion side of the slat 4. The elevating cord (6R in this example) thus arranged is supported so as to hang down from the end portion side in the left-right direction with respect to the position of the operation portion 24 in the head box 1 (see FIG. 13). As a result, it is possible to provide the lifting cord that reduces the influence of light leakage due to the insertion hole 4a.

In addition, in the horizontal blind 100 of the present embodiment, the lifting cord (6R in this example) that hangs from the end portion side of the position of the operation unit 24 in the head box 1 is a cord from the same direction as other lifting cords. It is guided inside the head box 1 so as to be inserted into the stopper device 28. That is, as shown in FIG. 16, the elevating cord 6R hanging from the end portion side is turned in the other direction (center side direction with respect to the end portion) inside the head box 1, and is turned at a predetermined position. The lifting cords 6L, 6M-1, 6M-2 are guided in the same direction. As a result, all the lifting cords can be dealt with by one cord stopper device 28, and the locking operation can be stabilized.

Further, in the horizontal blind 100 of the present embodiment, the end portion of the lifting cord is led out through the inside of the operation rod 22 extending from the cord outlet formed as the operation portion 24, is attached to the cord equalizer 21, and the bottom rail 8 is attached. Since it is possible to regulate the amount of pulling out of the lifting cord from the cord outlet in the state where the cord equalizer 21 abuts on the lower end of the operation rod 22 at the lower limit position of, the weft thread of the ladder cord is prevented from coming off from the slat 4. It has become.

Therefore, in the form of the horizontal blind according to the present invention, also in the case where the slat 4 having a large number of stages is moved up and down by the two elevating cords 6R and 6L, similarly, the insertion holes 4a are formed in the longitudinal direction of the slat 4 as much as possible. It is provided near the ends, and when a larger number of lifting cords other than the two lifting cords 6R and 6L are used, they are suspended along the front-back direction edge of each slat 4. Therefore, in the form of the horizontal blind according to the present invention, the elevating cord may be any cord-shaped or tape-shaped cord, and the slats 4 may be flat-plate-shaped or curved-plate-shaped. Further, the lifting cords arranged on the sides other than the left and right ends are referred to as the front and rear edge surfaces of each slat 4, notches provided on the edge portions and shielded from light when tilted, and pico provided on the ladder cord. One of the ring-shaped engaging members 27 or a combination thereof may be configured to hang down along the edge portion of each slat 4 in the front-rear direction.

Further, in the present embodiment, an example is shown in which the operating portion 24 is used as a form for realizing the suspension support of the operating rod 28 and the pulling-out operation of the lifting cord by the cord equalizer 21, but the pulling-out of the lifting cord is performed directly or indirectly. Even when the operation code that can be manually operated or the operation section 24 that is electrically operated by an operation from an external switch or the like is used, by using an elevating code that hangs from the end of the operation section 24 in the left-right direction. It is possible to dispose the elevating cord that reduces the influence of light leakage due to the insertion hole 4a.

By configuring the horizontal blind 100 of this embodiment as described above, it is possible to reduce the influence of light leakage from a practical point of view. Furthermore, in constructing the horizontal blind 100 of the present embodiment, by disposing a plurality of lifting cords so as to maintain the center of gravity of each slat 4 or bottom rail 8, the lifting operation of the bottom rail 8 or the slat 4 is performed. The point that can be stabilized will be described below.

In the horizontal blind 100 of the present embodiment shown in FIG. 13, as shown in the plan view of FIG. 18( a ), it becomes the hole center on the central axis (the one-dot chain line shown in the figure) extending in the longitudinal direction of the slat 4. Insertion holes 4a for the lifting cords 6L and 6R are provided near the ends of the slats 4 in the left-right direction (longitudinal direction). The ladder cord 7M is arranged in the front-rear direction (transverse direction) passing through the approximate center between the insertion holes 4a for the lifting cords 6L and 6R, and the ring provided on the warp threads of the front and rear ladder cords 7M. The elevating cords 6M-1 and 6M-2 are inserted into the engagement members 27 in the shape of, respectively. Further, the elevating cord 6L is guided mainly to the lateral end portion side of the slat 4 by the slat 4 in multiple stages with respect to the weft thread 4a of the ladder cord 7L supporting the slat 4. Similarly, the elevating cord 6R is guided mainly to the lateral end portion side of the slat 4 by the slat 4 in multiple stages with respect to the weft thread 4a of the ladder cord 7R supporting the slat 4.

When the elevating cords 6L, 6R, 6M-1 and 6M-2 are arranged in this manner, the plan view shown in FIG. 18(a) has a rhombus shape (two-dot chain line shown in the drawing), and the center of gravity Op of the slats 4 is set. It is on the central axis (one-dot chain line in the figure) extending in the longitudinal direction. Therefore, when the bottom rail 8 and the slat 4 are moved up and down, the bottom rail 8 and the slat 4 can be stably moved in a well-balanced manner, and the dynamic aesthetics thereof can be improved.

On the other hand, as shown in the plan view of FIG. 18(b) shown as a comparative example, the slat 4 is inserted into each insertion hole 4a provided at the center of the hole on the central axis (one-dot chain line shown in the figure) extending in the longitudinal direction. When the lifting cords 6L and 6R are arranged and the lifting cord 6M-1 which hangs only along one edge of the slat 4 in the front-rear direction (short side direction), a triangular shape is formed in a plan view shown in FIG. 18(b). (The two-dot chain line shown in the figure), the position of the center of gravity Op is a position of a distance dL that is largely deviated from the central axis (the one-dot chain line shown in the figure) extending in the longitudinal direction of the slat 4, and the bottom rail 8 and the slat 4 are moved up and down. It sometimes becomes unstable and moves while fluctuating, which is not desirable for dynamic aesthetics. Therefore, it is preferable to dispose a plurality of lifting cords with respect to the slat 4 so as to make the distance dL as small as possible. For this purpose, the lifting cords 6M-1 and 6M-2 arranged in front and rear are arranged. Is preferred.

Therefore, as a modified example of the configuration including the two lifting cords 6M-1 and 6M-2, for example, as in the modified example 1 shown in FIG. When the lifting cords 6M-1 and 6M-2 are hung by providing a notch 4b at one edge of the front-back direction (short-side direction) of 4, the central axis extending in the longitudinal direction of the slat 4 (one-dot chain line shown in the figure) The lifting cords 6L and 6R are inserted so as to be inserted into the respective insertion holes 4a whose center is displaced from the top. As a result, the center of gravity position Op due to the arrangement of the plurality of lifting cords can be brought close to the central axis (the one-dot chain line shown in the figure) extending in the longitudinal direction of the slat 4 (the distance dL is short). Since the plurality of lifting cords are arranged in a rhombus shape in a plan view of the slat 4 (two-dot chain line shown in the figure), it is possible to move the bottom rail 8 and the slat 4 in a well-balanced and stable manner. And the dynamic aesthetics can be improved.

Then, for example, in the case where the light shielding property at the time of tilt is not considered to be a problem as in the second modification shown in FIG. 19B (for example, when the overlapping area of the adjacent slats 4 shown in FIG. 15A is large). It is also possible to provide notches 4b at both edges of the slat 4 in the front-back direction (short direction) to suspend the lifting cords 6M-1 and 6M-2, and the center of gravity Op of the lifting cords 6M-1 and 6M-2 can be set. It can also be closer to the central axis extending in the longitudinal direction (one-dot chain line shown). Needless to say, the same effect can be obtained when a plurality of lifting cords are arranged without using the ring-shaped engaging member 27.

On the other hand, in the case of the longer slats 4, for example, as in the modification 3 shown in FIG. 20A, a large number of ladder cords 7M are arranged between the ladder cords 7L and 7R on the left and right ends of the slats 4. Then, it is necessary to support the slats 4 by the weft threads 7a of the respective ladder cords 7L, 7R, 7M. In such a case, the number of elevating cords to be arranged is also increased in the lateral direction of the slat 4. When arranging a plurality of lifting cords so as to increase in the left-right direction, the lifting cords 6M-1 and 6M-2 that hang down only along one edge of the slats 4 and extend in the longitudinal direction of the slats 4. The elevating cords 6L and 6R are inserted into the respective insertion holes 4a whose center is displaced from the center axis (one-dot chain line in the figure). As a result, the position of the center of gravity Op due to the arrangement of the plurality of lifting cords can be brought close to the central axis (the one-dot chain line shown in the figure) extending in the longitudinal direction of the slat 4 (the distance dL is short), and the bottom rail 8 and the slats can be made. It is possible to move in a well-balanced and stable manner during the lifting operation of 4.

In the case of the longer slats 4, as in the modification 4 shown in FIG. 20(b), the lifting cord 6M-1 that hangs down along one edge of the slats 4 and the other edges. Elevating cords 6M-2 and 6M-3 that hang down along with them, and elevating cords 6L and 6R that are inserted into the respective insertion holes 4a whose hole centers are offset from the center axis (one-dot chain line shown in the figure) extending in the longitudinal direction of the slat 4. It is also effective to arrange so that Thereby, the center of gravity position Op due to the arrangement of the plurality of lifting cords can be brought closer to the central axis (the one-dot chain line shown in the drawing) extending in the longitudinal direction of the slat 4 (the distance dL is short), and the bottom rail 8 or When the slat 4 is moved up and down, it can be stably moved in a well-balanced manner.

Further, in the case of the longer slats 4, as in the modification 5 shown in FIG. 20(c), the lifting cords 6M-1, 6M-2, 6M- are provided at a plurality of places in the front and rear two arrangements of the slats 4. 3, 6M-4, and by arranging so as to be the lifting cords 6L, 6R to be inserted into the respective insertion holes 4a having the hole center on the central axis extending in the longitudinal direction of the slat 4 (one-dot chain line shown in the figure), The position of the center of gravity Op due to the arrangement of a plurality of lifting cords can be surely set on the central axis (the one-dot chain line shown in the drawing) extending in the longitudinal direction of the slat 4, and when the bottom rail 8 and the slat 4 are raised and lowered, You can move it in a well-balanced and stable manner.

It should be noted that it is not necessary to limit the lifting cords 6L and 6R inserted through the insertion hole 4a to one for each of the longer slats 4, but from the viewpoint of light leakage described above, the lifting cords 6L and 6R that are inserted through the insertion hole 4a are lifted. It is preferable that one cord is provided near each end of the slats 4 in the left-right direction.

As described above, by disposing three or more lifting cords so as to maintain the center of gravity of each slat 4 or bottom rail 8, it is possible to stabilize the lifting operation of the bottom rails 8 and the slat 4.

Next, in constructing the horizontal blind 100 of the present embodiment, a configuration will be described in consideration of making it more difficult for the weft thread 7a of the ladder cord to come off from the left and right ends of the slat 4 more reliably. In the horizontal blind 100 of the present embodiment, the insertion hole 4a is configured to be provided as close to each end in the longitudinal direction of the slat 4 as possible, so that the weft thread 7a of the ladder cord is easily detached from the left and right ends of the slat 4. There is a risk of becoming. Therefore, in the horizontal blind 100 according to the present embodiment, the pulling amount of the lifting cord from the cord outlet can be regulated in a state where the cord equalizer 21 abuts the lower end of the operation rod 22 at the lower limit position of the bottom rail 8. This has the effect of suppressing the weft thread 7a of the ladder cord from coming off from the slats 4, but makes it more difficult for the weft thread 7a of the rudder cord to come off from the left and right ends of the slats 4 in the form of other operation parts. Considering the above, the following forms are more preferable.

First, as described above, the insertion hole 4a of each slat 4 is preferably provided at a position closer to the corresponding end of the slat 4 by the weft length of the ladder cord 7R (or 7L) or more.

Further, as described with reference to FIG. 18A, the lifting cord 6R (or 6L) arranged so as to hang down closest to the end portion side in the left-right direction of the slat 4 has the insertion hole 4a. After that, the slat 4 is guided mainly to the lateral end portion side of the slat 4 with respect to the weft thread 7a of the ladder cord 7R (or 7L) that supports each slat 4. In addition, as shown in FIG. 21( a ), the slats 4 are configured to guide the weft thread 7 a of the ladder cord 7 R (or 7 L) to the lateral center side of the slats 4 at predetermined steps. In the illustrated example, the elevating cord 6R is guided 10 steps in succession to the weft thread 7a of the ladder cord 7R toward the lateral end portion side of the slat 4, and is guided 1 step laterally toward the central portion side. Although 6R is woven so as to be continuously guided to the weft thread 7a of the ladder cord 7R toward the left and right end portions of the slat 4, this is merely an example. In this way, the elevating cord 6R is guided mainly toward the lateral end portion side of the slat 4 with respect to the weft thread 7a of the ladder cord 7R, so that the weft thread 7a of the ladder cord is less likely to come off from the right end portion of the slat 4. Further, by adopting the knitting mode, the hanging down of the warp threads of the ladder cord 7L follows the hanging down of the lifting cord 6R, and accompanying this, the weft threads 7a of the ladder cord 7L are more unlikely to come off from the right end portion of the slat 4. ..

Further, as shown in FIG. 21B, with respect to the lifting cord 6R (or 6L) arranged so as to hang down closest to the end portion side in the left-right direction of the slat 4, the lifting cord 6R (or 6L) is In a plan view of the slat 4 in a state of being located on one edge side of the insertion hole 4a (A in the figure), the edge of the slat 4 in the front-rear direction (B in the figure) and the position of the lifting cord 6R (or 6L) are connected to each other at the shortest distance. The first line segment and the sum of the second line segment that connects the lifting cord 6R (or 6L) to the other edge of the slat 4 in the front-rear direction and connects the corner of the slat 4 on the end side (illustrated B). The insertion hole 4a is formed at a position where the line length is larger than the length of the weft thread 7a of the adjacent ladder cord 7R (or 7L). This satisfies the condition that the weft thread 7a of the ladder cord does not easily come off from the right end of the slat 4. When the corner of the slat 4 has a rounded radius of curvature, the line segment having the longest length toward the corner may be the second line segment.

When such a condition is satisfied, as shown in FIG. 22, in the state where the slat 4 having a large number of steps is suspended and supported, even if a force is applied to the ladder cord 7R in the direction of the white arrow, from the right end portion of the slat 4. The weft thread 7a of the ladder cord is in a state in which there is almost no disconnection.

Then, the insertion holes 4a of each slat 4 are provided as close as possible to each end portion in the longitudinal direction of the slat 4 within a range in which the weft thread 7a of the ladder cord is prevented from coming off from the right end portion of the slat 4 as described above. With this configuration, the light-shielding effect at the time of installation is greatly improved from the practical point of view. In particular, in the example shown in FIG. 21B, the length of the weft thread 7a (weft thread length) in the ladder cord 7R closest to the insertion hole 4a, the position of the hole center of the insertion hole 4a, and the slat 4 of the insertion hole 4a. As a relationship with the slat protrusion length Ds corresponding to the distance between the corresponding left and right ends,
0.9≦(weft thread length of weft thread 7a/slat protrusion length Ds)≦1.0
By so doing, it is possible to prevent the weft thread 7a of the ladder cord from coming off from the right end portion of the slat 4 by satisfying the above conditions, and further, to position the insertion hole 4a of each slat 4 as far as possible in each end in the longitudinal direction of the slat 4. It can be arranged near the part.

[Fourth Embodiment]
In the example described above in the third embodiment, an example in which the tilt operation and the up-and-down operation of the slat 4 are mainly realized by the cord equalizer 21 and the operation rod 22 shown in FIG. 13 has been shown. Support members 50L, 50M, 50R for suspending and supporting the ladder cords 7L, 7M, 7R and the lifting cords 6L, 6M, 6R are arranged, and the insertion holes 4a of the slats 4 are arranged in the longitudinal direction of the slats 4 as much as possible. By adopting a configuration provided near each end portion in, the practical effect of suppressing light leakage can be enhanced. FIG. 23 is a diagram illustrating a horizontal blind according to the fourth embodiment of the present invention. In the fourth embodiment, for example, a rectangular rod-shaped drive shaft 51 is inserted through the support members 50L, 50M, 50R.

A tilt drum (not shown) is rotatably supported by the support members 50L, 50M, and 50R, and the drive shaft 51 is inserted into the tilt drum so as to be relatively unrotatable. Therefore, when the drive shaft 51 is rotated, the tilt drum is rotated, and the angles of the slat 4 in multiple stages suspended and supported by the ladder cords 7L, 7M, 7R are adjusted. Further, in order to allow the elevating cords 6L, 6M, 6R to be drawn in or out of the head box 1, the support members 50L, 50M, 50R are rotated relative to the drive shaft 51. A winding shaft 52 that is fixedly attached is provided (not shown).

Therefore, when the drive shaft 51 is rotated, the tilt drum is rotated and the angles of the slat 4 of multiple stages suspended and supported by the ladder cords 7L, 7M, and 7R are substantially vertical to the horizontal direction. After being tilted, the raising/lowering cords 6L, 6M, 6R are wound or unwound by the winding shaft 52, and the slat 4 can be raised/lowered by raising/lowering the bottom rail 8. Although illustration is omitted, in order to realize the tilting operation and the raising/lowering operation, it can be configured to be electrically operated by an operation code or an operation from an external switch or the like.

The arrangement of the ladder cords 7L, 7M, 7R and the lifting cords 6L, 6M, 6R with respect to the lateral blind slat 4 shown in FIG. 23 is as shown in FIG. 24(a). Even when the arrangement of the plurality of elevating cords has a triangular shape in a plan view (two-dot chain line shown in the figure) as in the example shown in FIG. Elevating cords 6M hanging along the notches 4b, and raising and lowering cords 6L, 6R inserted into the respective insertion holes 4a whose hole centers are offset from the center axis (one-dot chain line shown in the figure) extending in the longitudinal direction of the slat 4. Thus, the center of gravity position Op due to the arrangement of a plurality of lifting cords can be brought closer to the central axis (the one-dot chain line shown in the figure) extending in the longitudinal direction of the slat 4 (the distance dL is short), and the bottom rail 8 and the slats can be It is possible to move in a well-balanced and stable manner during the lifting operation of 4.

Further, FIG. 24B illustrates a partial side view of the supporting member 50R (50L) for the lifting cord 6R (6L), and FIG. 24C illustrates the supporting member 50M for the lifting cord 6M. 2 illustrates a partial side view of FIG. In order to allow the elevating cords 6L, 6M, 6R to be drawn into or pulled out of the head box 1, the support members 50L, 50M, 50R are not allowed to rotate relative to the drive shaft 51. A winding shaft 52 to be attached is provided. Therefore, when the drive shaft 51 is rotated, the tilt drum is rotated, and the angles of the slat 4 of multiple stages suspended and supported by the ladder cords 7L, 7M, and 7R are tilted substantially vertically to the horizontal direction. After that, the raising/lowering cords 6L, 6M, 6R are wound or unwound by the winding shaft 51, and the slat 4 can be raised/lowered by raising/lowering the bottom rail 8.

In particular, the notch 4b as shown in FIG. 24(a) may be provided on all the slats 4, but in order to realize a smooth droop while reducing light leakage, By providing the notch 4b only for the predetermined number of slats 4 or by providing the notch 4b only for the uppermost slat 4 as shown in FIG. Thus, the slat 4 can be smoothly hung along the lower slat 4 without coming into contact with the slat 4, and thus friction with the elevating cord during the elevating operation of the slat 4 can be suppressed.

Further, particularly when the front-rear width of the bottom rail 8 is smaller than the front-rear width of the slat 4, as shown in FIG. 24(d), as shown in FIG. By providing the notch 4b as shown, a smooth sag can be achieved, which can suppress the friction during the lifting operation of the slat 4.

[Fifth Embodiment]
In the example described above in the fourth embodiment, mainly the cord-shaped or tape-shaped lifting cords 6L, 6M, 6R have been intended and described, but in particular, the tape-shaped lifting cords 6L, 6M, 6R are used. In this case, it is possible to practically suppress light leakage by arranging the tape surface so that the tape surface is in the left-right direction and providing the insertion holes 4a of each slat 4 as close as possible to each end in the longitudinal direction of the slat 4. , The daylighting property can be improved. FIG. 25(a) is a diagram schematically showing the winding shaft 52 of the supporting members 50L, 50M, 50R in the horizontal blind of the fifth embodiment according to the present invention, and FIG. 25(b) shows a corresponding slat shape. Is illustrated. The support members 50L, 50M, and 50R have a drive shaft 51, for example, a quadrangular rod shape, inserted therein, which is shown in a simplified manner in FIG. 25(a). A tilt drum (not shown) is rotatably supported by the support members 50L, 50M, and 50R, and the drive shaft 51 is inserted into the tilt drum so as to be relatively unrotatable.

Therefore, when the drive shaft 51 is rotated, the tilt drum is rotated, and the angles of the slat 4 in multiple stages suspended and supported by the ladder cords 7L, 7M, 7R are adjusted. Further, in order to allow the elevating cords 6L, 6M, 6R to be drawn in or out of the head box 1, the support members 50L, 50M, 50R are rotated relative to the drive shaft 51. A winding shaft 52 that is fixedly attached is provided (not shown). Therefore, when the drive shaft 51 is rotated, the tilt drum is rotated and the angles of the slat 4 of multiple stages suspended and supported by the ladder cords 7L, 7M, and 7R are substantially vertical to the horizontal direction. After being tilted, the raising/lowering cords 6L, 6M, 6R are wound or unwound by the winding shaft 52, and the slat 4 can be raised/lowered by raising/lowering the bottom rail 8. Although illustration is omitted, in order to realize the tilting operation and the raising/lowering operation, it can be configured to be electrically operated by an operation code or an operation from an external switch or the like.

A support provided with a rotation conversion gear that turns 90 degrees with respect to the rotation direction of the drive shaft 51 in order to suspend the tape surface in the left-right direction when the tape-shaped lifting cords 6L, 6M, 6R are configured. The members 50L, 50M, and 50R may be used, but as shown in FIG. 25(a), for example, a round surface that turns the tape surfaces of the lifting cords 6L and 6R by approximately 90 degrees and hangs down toward the slats 4. It is preferable to provide the shaft-shaped turning mechanisms 54 and 55 on the head box 1 (including the case where they are provided on the support members 50L and 50R). Since various forms can be considered as the turning mechanism for turning the rotation direction of about 90 degrees, a typical example is shown here.

Thereby, each winding shaft 52 can be arranged so that all the lifting cords can be wound by uniaxial rotation depending on the rotation direction of the drive shaft 51, and at least in the vicinity of each end portion in the longitudinal direction of the slat 4. The elevating cords 6L and 6R that are hung down can be turned so as to hang down toward the slats 4 by rotating their tape surfaces by approximately 90 degrees.

With respect to the slats 4 in this case, as shown in FIG. 25( b ), the slats 4 are inserted into the ring-shaped engaging members 27 provided on the warp threads of the ladder cords 7</b>M so that the slats 4 are positioned at one edge portion in the front-rear direction. A tape-shaped lifting cord 6M that hangs down along with tape-shaped lifting cords 6L and 6R that are inserted into the respective insertion holes 4a having a hole center on the central axis (one-dot chain line shown in the figure) extending in the longitudinal direction of the slat 4. It can be provided. The tape-shaped lifting cords 6L and 6R which are inserted into the respective insertion holes 4a of the slat 4 have a plurality of lifting cords shown in FIG. The center of gravity Op can be easily brought close to the central axis (one-dot chain line shown in the figure) extending in the longitudinal direction of the slat 4, and the bottom rail 8 and the slat 4 can be stably moved in a well-balanced manner. it can.

Further, as shown in FIG. 26(a), the notch 4b may be provided on at least the uppermost slat 4 so that the tape surface of the tape-shaped lifting cord 6M is also positively oriented in the left-right direction. it can. Further, like the turning mechanism for the lifting cords 6R and 6L, a turning mechanism for rotating the tape surface of the lifting cord 6M by approximately 90 degrees may be provided.

In this way, the tape surface of the tape-shaped lifting cords 6R and 6L, or preferably the tape surface of the lifting cord 6M, hangs down so as to face in the left-right direction. It can be moved by moving it, and the lighting performance is improved as shown in FIG.

[Sixth Embodiment]
In the examples described in the third to fifth embodiments, the practical purpose of suppressing light leakage is mainly to provide the insertion holes 4a of the slats 4 as close as possible to the ends in the longitudinal direction of the slats 4. Although an example has been described, when a horizontal blind is installed on a window frame or the like, it is effective to install a guide rail suitable for hiding the insertion hole 4a on the window. FIG. 27A is a simplified front view of the horizontal blind 100 according to the sixth embodiment of the present invention, and FIGS. 27B and 27C show corresponding guide rail shapes.

As shown in FIG. 27A, in the window frame W, the horizontal blind 100 of the third embodiment is installed, and the guide rails 80 are provided on both left and right sides. The guide rail 80 has a function of preventing light leakage from the gap between the slat 4 and the window frame, and shields the direct light from the insertion hole 4a of the slat 4 against at least the solar radiation vertical and horizontal to the shielding surface. It is installed so that it has a real board surface. As shown in the partial plan view of FIG. 27( b ), the shape of the guide rail 80 is, for example, a light-shielding piece that shields light on the inside or outside with a length Lb, and an installation piece for installation on the window frame W. It can be configured by a plate-shaped member having a V-shaped cross section. Such a guide rail 80 can also prevent the slat 4 from flapping under the influence of wind or the like, and as shown in FIG. 27C, it can be formed of a plate-shaped member having a U-shaped cross section. it can. The length Lb may be long enough to hide the insertion hole 4a of the slat 4. A guide rail may be formed in which the shield surface and the mounting surface are connected to each other in a hinge-like manner so as to be relatively rotatable in the horizontal direction, and the shield surface is rotated with respect to the mounting surface so as to be foldable. Therefore, the guide rail 80 according to the present invention can be configured so that it can be installed at a position that blocks light leakage from the insertion holes 4a of the slat 4 of multiple stages in the horizontal blind of the third to fifth embodiments. If the window is provided with the guide rail 80, it is possible to more reliably suppress the influence of the light leakage in the horizontal blind of the third to fifth embodiments.

[Seventh Embodiment]
In the examples described above in the first to sixth embodiments, the practical purpose of suppressing light leakage is mainly to provide the through holes 4a of the slats 4 as close to the respective ends in the longitudinal direction of the slats 4 as possible. Although the horizontal blinds have been described, the horizontal blinds are configured as glass sashes having the built-in horizontal blinds, and the vertical frame of the glass sash prevents light leakage from the insertion hole 4a in the slats 4 of the horizontal blinds of the third to fifth embodiments. It may be formed at a position where light is shielded. FIG. 28(a) is a front view schematically showing a glass sash 200 incorporating a horizontal blind 100 according to a sixth embodiment of the present invention, and FIG. 28(b) is a schematic plan view of a cross section thereof.

The glass sash 200 of this embodiment has the horizontal blind 100 built in the double glass, and is excellent in heat insulation, sound insulation, and light shielding performance. The structure of the glass sash 200 is a structure in which a first glass frame 201 in which a peripheral edge of a first glass 203 is fitted with a gasket 205 and a second glass frame 202 in which a second glass 204 is fitted with a gasket 205 are combined. A hollow in which the horizontal blind 100 can be built is provided inside. The length La of the daylighting area of the glass sash 200 is determined by the length Lb of the light shielding area of the gasket 205 that fits the peripheral edge of the gasket 205, but the vertical frame of the first glass frame 201 and the second glass frame 202. By configuring the insertion hole 4a in the slat 4 of the horizontal blind 100 to be located inside 206, it is possible to reliably block light leakage from the insertion hole 4a.

The glass sash 200 of the present embodiment is configured to suspend and support the operation rod 22 and the cord equalizer 21 above the vertical frame 206 when the horizontal blind 100 is built in the double glass. Each operation code 6L, 6R, M shown in FIG. 13 or FIG. 16 is led out through the outlet provided in the upper portion of the vertical frame 206 via the operation portion 24 of the horizontal blind 100 to move the inside of the operation rod 22. After that, it is attached to the cord equalizer 21.

As described above, the horizontal blinds according to the third to seventh embodiments, the window in which the guide rails and the horizontal blinds are installed, and the glass sash are not limited to the flat plate slats made of wood, but are slightly curved thin plates made of aluminum. Even in the case of using a slatted slat, it is possible to reduce the influence of light leakage from a practical point of view, and preferably, it is possible to suppress fluttering when the slat 4 moves up and down, and improve its design. be able to. Further, in addition to being able to adopt a form that is advantageous for daylighting properties, it is also possible to adopt a form that also enhances the retention of the ladder cord with respect to the slats.

As described above, the present invention is not limited to the examples of the respective embodiments, and various modifications can be made without departing from the technical idea thereof.

According to the present invention, since light leakage can be effectively suppressed, it is useful for a horizontal blind using a plurality of lifting cords, a guide rail, a window in which the horizontal blind is installed, and a glass sash. ..

1 Headbox 1a Outlet 1b Groove 4 Slat 4a Insertion hole 4b Notch 5 Operation code 6L, 6M, 6M-1, 6M-2, 6M-3, 6M-4, 6R Lift code 7L, 7M, 7R Ladder code 7a , 7b Weft thread 8 Bottom rail 8L, 8R Penetration part 8M Mounting part 9 Bracket 11,13 Upper projection piece 12 Lower projection piece 21 Code equalizer 22 Operation rod 22a Grip 22b Cap 23 Code hook 24 Operation part 25 Tilt drum 26 Tilt shaft 27 Engaging member 28 Code stopper device 40 Plate member 50R, 50L, 50M Supporting member 51 Drive shaft 80 Guide rail 100 Horizontal blind 200 Glass sash 201 First glass frame 202 Second glass frame 203,204 Glass 205 Gasket 206 Vertical frame

Claims (12)

A horizontal blind that raises and lowers a plurality of stages of slats suspended and supported by a ladder cord using a plurality of lifting cords,
A ladder cord that hangs at multiple places in the left-right direction and supports multiple slats,
Equipped with a plurality of lifting cords that are suspended near the ladder cord,
Of the plurality of lifting cords, the lifting cords hung near the respective ends in the left-right direction of the slat are inserted into the elongated hole insertion holes extending in the front-rear direction of each slat, and the plurality of the hanging cords are hung. Elevating cords composed of three or more raising/lowering cords, other than the raising/lowering cords hung near the respective end portions, hang down along the front-back direction edge of each slat, and each of the insertion holes, It is provided at a position closer than the weft length of the ladder cord at the latest position to the corresponding left and right ends of the slat ,
The plurality of lifting cords are led out to the outside from a cord outlet provided as an operating portion via a cord stopper device provided inside the head box, and are connected and fixed to a cord equalizer. The elevating cord that hangs from the side closer to the left and right ends of the head box than the position is guided in the head box so as to be inserted into the cord stopper device in the same direction as other elevating cords. Horizontal blinds that are characterized by The horizontal blind according to claim 1, wherein the plurality of lifting cords are arranged so as to maintain the center of gravity of each slat or bottom rail. The horizontal blind according to claim 1 or 2, wherein the hanging of the other lifting cord includes hanging of two slats in front and behind. An operation unit is provided near one end or both ends in the left-right direction of the head box that supports the ladder cord and the plurality of lifting cords, and the operation unit is provided near the left-right end of the slat among the three or more lifting cords. The lifting cord arranged so as to hang down in proximity is supported so as to hang down from a side closer to an end portion in the left-right direction of the head box than a position of an operating portion of the head box. Item 4. The horizontal blind according to any one of items 1 to 3. Among the plurality of lifting cords, the lifting cord disposed so as to hang down closest to the lateral end portion side of the slat, through the insertion hole, with respect to the weft thread of the ladder cord that supports each slat. The guide is provided mainly toward the left and right ends of the slats, and is guided toward the left and right center parts of the slats with respect to the weft thread of the ladder cord at predetermined steps of the slats. The horizontal blind according to any one of 1. A horizontal blind that raises and lowers a plurality of stages of slats suspended and supported by a ladder cord using a plurality of lifting cords,
A ladder cord that hangs at multiple places in the left-right direction and supports multiple slats,
Equipped with a plurality of lifting cords that are suspended near the ladder cord,
Of the plurality of lifting cords, the lifting cords hung near the respective ends in the left-right direction of the slat are inserted into the elongated hole insertion holes extending in the front-rear direction of each slat, and the plurality of the hanging cords are hung. Elevating cords composed of three or more elevating cords, and other elevating cords other than the elevating cords hung near the respective end portions are hung along the front and rear edges of each slat,
Among the plurality of lifting cords, with respect to the lifting cord disposed so as to hang down closest to the lateral end portion side of the slat, with respect to the lifting cord, the lifting cord is located on one edge side of the insertion hole in a slat plan view. A first line segment that connects one edge part in the front-rear direction of the slat and the position of the elevating cord in the shortest direction, and a corner part of the slat on the end side that is connected to the elevating cord and the other edge part in the front-rear direction of the slat. line length consisting sum of the second line segment connecting the bets is Ri Oh large than the weft length of ladder cord,
The plurality of lifting cords are led out to the outside from a cord outlet provided as an operating portion via a cord stopper device provided inside the head box, and are connected and fixed to a cord equalizer. The elevating cord that hangs from the side closer to the left and right ends of the head box than the above position is guided inside the head box so as to be inserted into the cord stopper device from the same direction as other elevating cords. A horizontal blind characterized by As a relationship between the weft thread length of the ladder cord closest to the insertion hole and the slat protrusion length corresponding to the distance between the position of the hole center of the insertion hole and the corresponding lateral end of the slat. The horizontal blind according to any one of claims 1 to 6, wherein the weft length in the ladder cord is 0.9 times or more and 1.0 times or less of the slat protrusion length. .. The plurality of lifting cords are led out through the inside of the operating rod extending from the cord outlet and attached to the cord equalizer, and the cord equalizer is in contact with the lower end of the operating rod at the lower limit position of the bottom rail. to regulate the extraction amount from the code outlet of lift cords, wherein characterized in that it is configured to suppress the ladder cord of the slats is out, according to any one of claims 1 7 Horizontal blinds. A horizontal blind that raises and lowers a plurality of stages of slats suspended and supported by a ladder cord using a plurality of lifting cords,
A ladder cord that hangs at multiple places in the left-right direction and supports multiple slats,
Equipped with a plurality of lifting cords that are suspended near the ladder cord,
Of the plurality of lifting cords, the lifting cords hung near the respective ends in the left-right direction of the slat are inserted into the elongated hole insertion holes extending in the front-rear direction of each slat, and the plurality of the hanging cords are hung. Elevating cords composed of three or more raising/lowering cords, other than the raising/lowering cords hung near the respective end portions, hang down along the front-back direction edge of each slat, and each of the insertion holes, It is provided at a position closer than the weft length of the ladder cord at the latest position to the corresponding left and right ends of the slat,
Notch provided on the edge of either one or both of the longitudinal direction of the respective slat, horizontal blinds you, characterized in that provided only the uppermost slat. A horizontal blind that raises and lowers a plurality of stages of slats suspended and supported by a ladder cord using a plurality of lifting cords,
A ladder cord that hangs at multiple places in the left-right direction and supports multiple slats,
Equipped with a plurality of lifting cords that are suspended near the ladder cord,
Of the plurality of lifting cords, the lifting cords hung near the respective ends in the left-right direction of the slat are inserted into the elongated hole insertion holes extending in the front-rear direction of each slat, and the plurality of the hanging cords are hung. Elevating cords composed of three or more raising/lowering cords, other than the raising/lowering cords hung near the respective end portions, hang down along the front-back direction edge of each slat, and each of the insertion holes, It is provided at a position closer than the weft length of the ladder cord at the latest position to the corresponding left and right ends of the slat,
Notch provided on the edge of either one or both of the longitudinal direction of the respective slat, horizontal blinds you, characterized in that provided only for the lowermost slat. The plurality of raising and lowering cords are tape-shaped, and a winding means capable of winding all the raising and lowering cords by uniaxial rotation and a tape surface of the raising and lowering cords hung near the respective end portions in the left and right direction of the slat are substantially formed. The horizontal blind according to any one of claims 1 to 10 , wherein the head box is provided with a turning mechanism that turns 90 degrees and hangs down toward the slats. The plurality of elevating cords are tape-shaped, and the hanging of the other elevating cords is related to a notch provided on at least one of the front and rear edges provided on the uppermost slat. Horizontal blind according to any one of claims 1 to 11 , characterized in that it comprises a mating droop.