JP2016211213A - Blind - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce demerit caused by equipping a slat fixing member on a blind equipped with the slat fixing member that fixes slats to a ladder cord.SOLUTION: A blind 100 comprises a ladder cord 120, which supports multiple slats 110 in aligned state and enables inclination angle of the slats 110 to be changed, and a slat clip 130, which fixes the slats 110 to the ladder cord 120. The ladder cord 120 has a middle stage cord 121 that supports the slats 110. The middle stage cord 121 comprises multiple weft 121a, 121b that are vertically disposed. The slat clip 130 fixes a predetermined slat 111 only to the weft 121a above the predetermined slat 111.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a blind.

  In a conventional horizontal blind, a slat clip as a slat fixing member is attached in order to prevent the uppermost slat from being lifted when the blind is opened and closed and to reliably transmit the rotation of the ladder cord to the slat. The slat clip is fixed so that the weft is sandwiched between the slat from below one or a plurality of wefts constituting the middle cord. As described above, when the plurality of wefts are fixed so as to be sandwiched between the slats, the movement of the slats is restricted by the plurality of wefts arranged above and below. When the middle cord was tilted during slat rotation, the slats had no freedom of movement, which affected the shielding of the slats.

  Further, in the horizontal blind disclosed in Japanese Patent Application Laid-Open No. 2011-246997 (Patent Document 1), a notch portion is formed on at least one side edge of the slat, and the vertical direction of the ladder cord before and after the notch portion is formed. One of the codes is arranged. At least one lifting cord is arranged along the vertical cord outside the side edge of the slat for at least one slat from the top, and the wall of the notch and the vertical cord for the other slats. It is arranged to pass through.

  By inserting the slat between the weft threads of the ladder cord, the notch portion of the slat and the ladder cord are engaged with each other so that the lateral displacement of the slat is prevented. However, workability is poor with a structure in which slats are inserted between the wefts of all ladder cords. For this reason, generally, a structure is adopted in which only the longitudinal ends of the slats are inserted between the wefts, and the center of the slats (other than both ends) is placed on the two wefts.

  At this time, the slat clips at both ends in the longitudinal direction of the slat are configured to sandwich only the weft located below the slat. On the other hand, the slat clip located at the center in the longitudinal direction of the slat has a structure in which two upper and lower wefts are sandwiched between the slats. In other words, since the center of the slat is fixed to the upper and lower two wefts by the slat clip, it is more fixed to the ladder cord than both ends of the slat fixed to only one lower weft. It has become. For this reason, the rotation of the slat is affected, and when the slat is rotated, the slat may rotate in a state where the central portion of the slat is lifted.

JP 2011-246997 A

  The present invention has been made in view of the problems of the background art described above, and the object of the present invention is that the blind including the slat fixing member that fixes the slat to the ladder cord includes the slat fixing member. It is to provide a blind capable of reducing the disadvantages.

  In order to solve the above-described problems, according to the present invention, a ladder cord for supporting a plurality of slats in an aligned state and making the inclination of the slats variable, and a slat fixing member for fixing the slats to the ladder cords The ladder cord has a middle cord that supports the slat, the middle cord is composed of a plurality of wefts arranged vertically, and for a given slat, the slat fixing member is A blind is provided, wherein the predetermined slat is fixed only to the upper weft.

  According to such a configuration, among the plurality of wefts constituting the middle cord, the slat fixing member fixes only the upper weft with the slat so that it can rotate without being affected by the lower weft. Thus, the shielding performance of the slat during rotation is improved.

  As an application example of the present invention, the predetermined slat may be placed on the upper and lower wefts, and the slat fixing member may be inserted between the upper and lower wefts. As described above, since the slat fixing member is configured to be inserted between the upper and lower wefts, the slat fixing member can fix only the upper weft between the slats. Therefore, it becomes possible to rotate without being affected by the lower weft, and the shielding of the slat during rotation is improved.

  As an application example of the present invention, the ladder cord is provided at both ends and a center portion of the slat in the longitudinal direction, and the center portion of the predetermined slat in the longitudinal direction is on the upper and lower wefts. It is mounted and fixed only to the upper weft by the slat fixing member, and both ends in the longitudinal direction of the predetermined slat are inserted between the upper and lower wefts, and the lower side by the slat fixing member You may make it fix only to this weft. In this way, both ends in the longitudinal direction of the slats are fixed between the wefts located below, and the central part in the longitudinal direction of the slats is fixed between the wefts located above, so that each slat is fixed. Since it is fixed by two wefts, the shielding property of the slats is improved while preventing the lateral displacement of the slats.

  Further, in the application example, the positional relationship between the upper and lower wefts may be reversed upside down at the longitudinal center portion of the predetermined slat and both longitudinal end portions of the predetermined slat. Good. By adopting such a configuration, the longitudinal center portion of the predetermined slat and both longitudinal end portions of the predetermined slat are placed on the weft that was originally in the same position in the vertical direction. become. Therefore, the height of the slat fixed by the slat fixing member coincides with both ends and the center. For this reason, the slats can be rotated more accurately because there is no difference in the rotational properties in the longitudinal direction.

  In another application example of the present invention, the predetermined slat and a slat immediately below the predetermined slat may be supported at different inclination angles depending on the ladder cord. In this way, in the blind in which the predetermined slat and the slat directly below it can be supported by the ladder cord at different inclination angles, the front and rear width of the ladder cord may narrow from the predetermined slat to the slat directly below. is there. For this reason, the load from the front and rear direction is applied to the predetermined slat from the ladder cord, and the rotation of the slat becomes tight, and the predetermined slat may not be able to rotate. However, by providing the slat fixing member on the predetermined slat, the predetermined slat can be reliably followed with respect to the rotation operation of the ladder cord. For this reason, it is possible to realize the accuracy of the operation in a predetermined slat in a portion where the inclination angle of the slat is different, which is a portion that is easy to enter the line of sight of the home worker or the worker.

  Moreover, the raising / lowering cord for raising / lowering the said slat may be arrange | positioned along the side edge of the longitudinal direction of the said slat. With such a configuration, there is no need to provide an insertion hole for allowing the elevating cord to be inserted into the slat. For this reason, even if the slat is rotated until it is fully closed, there is no fear of light leakage from the insertion hole. In addition, “arranged along the side edge in the longitudinal direction” means that a plurality of lifting cords may be arranged along one side edge in the longitudinal direction, or one side edge and another side edge, for example, You may arrange a raising / lowering cord alternately.

  ADVANTAGE OF THE INVENTION According to this invention, in the blind provided with the slat fixing member which fixes a slat to a ladder cord, it is possible to reduce the demerit resulting from having provided the slat fixing member. Other effects of the present invention will also be described in a mode for carrying out the invention described later.

It is a front view which shows the whole structure of the blind of 1st Embodiment. It is a perspective view which shows the structure of the blind of the switching part vicinity of 1st Embodiment. It is a sectional side view which shows the structure which fixed the slat immediately above and the intermediate | middle cord with the slat clip of 1st Embodiment. It is a sectional side view of a blind when the ladder cord of 1st Embodiment is not inclined. It is a sectional side view which shows the state which tilted the ladder cord of 1st Embodiment, (a) shows the state of switching part vicinity, (b) shows the state of the slat just above. It is the perspective view seen from the front side which shows the center part of the longitudinal direction of the slat near the switching part of 2nd Embodiment. It is the perspective view seen from the back side which shows the edge part of the longitudinal direction of the slat near the switching part of a 2nd embodiment. It is a sectional side view which shows the structure which fixed the slat just above and the intermediate | middle code | cord | chord with the slat clip of 2nd Embodiment. It is a sectional side view of a blind when the ladder cord of 2nd Embodiment is not inclined. It is a sectional side view which shows the state which inclined the ladder cord of 2nd Embodiment, (a) shows the state of switching part vicinity, (b) shows the state of the slat just above.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, in this specification and drawing, about the component which has the substantially same function structure, duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol.

(First embodiment)
The configuration of the blind according to the first embodiment will be described with reference to FIGS. FIG. 1 is a front view showing the overall configuration of the blind according to the first embodiment, FIG. 2 is a perspective view showing the configuration of the blind near the switching unit, and FIG. 3 is a slat according to the first embodiment. It is a sectional side view which shows the structure which fixed the slat just above and the intermediate | middle code | cord | chord with the clip.

  As shown in FIGS. 1 and 2, the blind 100 of this embodiment includes a ladder cord 120 for supporting a plurality of slats 110 in an aligned state and making the inclination of the slats 110 variable, and a ladder cord for the slats 110. The slat clip 130 which is an example of the slat fixing member fixed to 120 is provided. The ladder cord 120 has a middle-stage cord 121 that supports the slat 110, and the middle-stage cord 121 is composed of two wefts 121a and 121b arranged one above the other. In addition, the slat 110 is placed on the two wefts 121a and 121b in at least one place in the longitudinal direction. For the predetermined slat 111, the slat clip 130 is provided only on the upper weft 121a. Configured to be fixed.

  First, the overall configuration of the blind 100 according to the present embodiment will be described with reference to FIGS. 1 and 2. In the blind 100, a large number of slats 110 are supported in alignment by three ladder cords 120 depending from the head box 140, and the vertical cords 122 and 123 before and after the ladder cord 120 are relatively moved to tilt the slats 110. The elevating cord 150 suspended from the head box 140 is disposed along the side edge of each slat 110, and one end of the elevating cord 150 is connected to the bottom rail 190 disposed at the lower end of the slat 110 row, The slats 110 are configured to be held by the ladder cord 120 at different angles in the upper part and the lower part.

  Hereinafter, each component of the blind 100 of this embodiment is demonstrated.

  The head box 140 is fixed to a window frame, a ceiling or the like via a bracket. As shown in FIG. 1, the upper ends of the ladder cord 120 and the lifting / lowering cord 150 are inserted into the head box 140. A rotating drum (not shown) to which the upper end of the ladder cord 120 is connected is disposed in the head box 140, and the ladder cord 120 is tilted by the rotation of the rotating drum. The rotating drum is rotated by rotating an operation rod 160 provided at one end of the head box 140, and the tilting of the ladder cord 120 is operated. In addition, a lead-out port 170 through which the upper end of the lifting / lowering cord 150 is led out is formed on the front surface of the head box 140 adjacent to the operation rod 160. The outlet port 170 is provided with a stopper 171 that switches between a state in which the lifting / lowering cord 150 can move and a state in which it is restrained.

  As shown in FIG. 2, the ladder cord 120 includes two front and rear vertical cords 122 and 123, and a plurality of middle cords 121 that connect the front and rear vertical cords 122 and 123. A plurality of slats 110 are placed. Further, the upper ends of the vertical cords 122 and 123 before and after the ladder cord 120 are introduced into the head box 140 and connected to the rotating drum as described above. The vertical cords 122 and 123 before and after the ladder cord 120 cause a relative displacement in the vertical direction between them as the rotating drum rotates, so that the middle cord 121 is inclined and the slat 110 is inclined. It has become. Lower ends of the vertical cords 122 and 123 before and after the ladder cord 120 are connected to a bottom rail 190 arranged at the lower end of the slat 110 row.

  Of the vertical cords 122 and 123 before and after the ladder cord 120, the vertical cord 122 on the front side is partly packed with a knob member 124 at a midway position in the vertical direction as shown in FIG. It has become. One middle cord X located in this length filling portion is cut off. Due to the length-packing portion, the pitch of the middle cord 121 is substantially constant in the vertical direction in the front vertical cord 122. On the other hand, in the vertical cord 123 on the rear side, the pitch is increased only in the length filling portion because one middle cord X is cut off.

  That is, in this length filling portion, the pitch of the slats 110 is the same as the other portions on the front side, but doubles on the rear side, and the pitch is different in the front and back. It functions as 120a. And since the middle stage cord 121 changes the inclination angle with the switching unit 120a as a boundary, the upper slat group 110a located above the switching unit 120a and the lower slat group 110b located below the switching unit 120a, It can be held at different tilt angles. In the state of FIG. 2, the upper slat group 110a is horizontal, while the lower slat group 110b is inclined. As a result, the blind 100 can block the field of view from the outside at the lower part and can take in the light from the outside at the upper part. The reverse situation is also possible.

(Slat 110)
As shown in FIG. 1, the plurality of slats 110 are supported in an aligned state by a ladder cord 120. The plurality of slats 110 rotate as the ladder cord 120 tilts. As shown in FIG. 2, each slat 110 is placed on the upper and lower wefts 121 a and 121 b and supported by the middle cord 121 of the ladder cord 120. Further, as described above, since the lifting / lowering cord 150 (not shown in FIG. 2) is disposed along the side edge of the slat 110, the slat 110 is not provided with an insertion hole through which the lifting / lowering cord 150 is inserted.

(Slat clip 130)
The slat clip 130 fixes the slat 110 and the middle cord 121. As shown in FIG. 2, the base 131 provided to face one surface of the slat 111 directly above and the edge of the slat 111 directly above. And a locking piece 132 that locks the portion and holds it at the mounting position. Here, the slat 111 immediately above is a slat arranged on the upper side of the two upper and lower slats where the angle of the slat is switched. The base 131 is a substantially X-shaped plate member that can be elastically deformed, and a groove 133 is formed at the center over the entire length in the front-rear direction. The upper and lower wefts 121a and 121b can be accommodated in the groove 133. The locking piece 132 is formed to protrude from the four substantially X-shaped tip portions of the base portion 131 in a substantially L shape above the base portion 131 and is elastically deformable.

  In the present embodiment, the slat clip 130 fixes the lowermost slat of the upper slat group 110a, that is, the slat 111 immediately above the switching unit 120a and the weft 121a above the middle cord 121 as follows. That is, as shown in FIG. 3, the slat 111 immediately above is placed on the upper and lower wefts 121a and 121b of the middle cord. In the slat clip 130, the base 131 is inserted between the upper and lower wefts 121a and 121b, the upper weft 121a is received in the groove 133 of the base 131, and the locking piece 132 is locked to the other surface of the slat 110. The As a result, the upper weft 121a is clamped and fixed between the base 131 and the slat 110. Therefore, in the middle cord 121, the lower weft 121 b is not fixed to the slat 110, and only the upper weft 121 a is fixed to the slat 110.

(Elevating cord 150)
The raising / lowering cord 150 raises / lowers the slat 110 by raising / lowering this. As shown in FIG. 1, one lifting cord 150 is provided at each of the central portion and both end portions of the slat 110 in the longitudinal direction. Each lifting / lowering cord 150 is arranged along the ladder cord 120. In addition, each lifting / lowering cord 150 has a lower end connected to a bottom rail 190 disposed at the lowest stage of the plurality of slats 110, and an upper end introduced into the head box 140 through a side edge of the plurality of slats 110. The lifting / lowering cord 150 introduced into the head box 140 is guided to one end of the head box 140 and led out from the outlet 170 through the stopper 171. An operation unit 180 is configured by a part of the lifting / lowering cord 150 led out from the head box 140 or the cord 181 connected to the lifting / lowering cord 150.

  The lifting / lowering cord 150 provided in the longitudinal center of the slat 110 is disposed along the front vertical cord 122. Further, the lifting / lowering cords 150 provided at both ends in the longitudinal direction of the slat 110 are arranged along the rear vertical cord 123. Each lifting / lowering cord 150 arranged in this way is always kept in tension.

  In the present embodiment, the lifting cord 150 is always kept in tension for the following reason. That is, in the brand 100 according to the present embodiment, as described above, in the switching unit 120a, the pitch of the slats 110 is the same as that of the other parts on the front side, but doubles on the rear side. 122 and 123 have different lengths. For this reason, when all the slats 110 are inclined to the vertical state, the rear vertical cord 123 having a long pitch of the slats 110 is loosened in the switching unit 120a. As described above, in the blind where the vertical cord is slackened, unless the lifting / lowering cord is always kept in a tension state, the lifting / lowering cord is slackened, which causes the rotation of the slat to be hindered. For this reason, in the blind 100 of this embodiment, the liftability of the slat 110 is improved by always keeping the lifting / lowering cord 150 in a tension state.

  The configuration of the blind 100 according to the present embodiment has been described above. Next, the operation of the blind 100 according to the present embodiment will be described with reference to FIGS.

  When the ladder cord 120 is not inclined, that is, when both the front and rear vertical cords 121 and 122 are wound around the rotating drum to the same extent, as shown in FIG. 4, the upper slat group 110a is horizontal, The lower slat group 110b is tilted. Thereby, the light from the outside can be taken in the upper part of the blind 100. On the other hand, in the lower part of the blind 100, the light and line of sight from the outside can be blocked to some extent. In this way, variations in the state of incident and shielded light can be provided.

  Next, when the front vertical cord 122 is wound around the rotating drum and raised, and the rear vertical cord 123 is unwound from the rotating drum and lowered, the upper slat group 110a and the lower slat group 110b rotate, As shown in FIG. 5A, all the slats 110 are closed. As described above, only the upper weft 121a is fixed to the upper slat 111 and the lower weft 121b is fixed to the upper slat 111 as described above. It has not been. For this reason, as shown in FIG.5 (b), the lower weft 121b inclines in the state isolate | separated from the upper slat 111 at the time of rotation. Therefore, since the slat 110 immediately above can be rotated without being affected by the lower weft 121b, the slats immediately above are improved in rotation and the shielding performance is improved.

(Effects of the first embodiment)
As described above, according to the present embodiment, of the upper and lower wefts 121a and 121b constituting the middle cord 121, only the upper weft 121a is sandwiched between the slat clip 130 and the slat 111 directly above. . For this reason, the slat 111 immediately above can be rotated without being affected by the lower weft 121b, and the shielding property of the slat 111 immediately above during rotation is improved.

  In addition, the slat 110 can be held by the ladder cord 120 at different angles at the upper and lower portions with the switching portion 120a of the ladder cord 120 as a boundary, and the slat 111 is placed on the slat 111 immediately above the switching portion 120a whose angle is switched. A clip 130 is provided. As a result, the slat 111 immediately above the switching unit 120a can reliably follow the rotation operation of the ladder cord 120. Therefore, the operation accuracy can be realized in the slat 111 immediately above the switching unit 120a that easily enters the line of sight of the person at home or the office worker.

(Second Embodiment)
Next, the configuration of the blind according to the second embodiment will be described with reference to FIGS. FIG. 6 is a perspective view seen from the front side showing a central portion in the longitudinal direction of the slat near the switching portion according to the second embodiment, and FIG. 7 shows an end portion in the longitudinal direction of the slat near the switching portion. It is the perspective view seen from the back side, and FIG. 8 is sectional drawing which shows the structure which fixed the slat immediately above and the intermediate | middle code | cord | chord with the slat clip. In this embodiment, as an application example of the blind of the first embodiment, the fixing structure by the slat clip to the middle cord of the slat is characterized. In the present embodiment, a description will be given centering on differences from the first embodiment.

  In the present embodiment, a description will be given centering on differences from the first embodiment. In the following description, the slat 210, the slat 211 immediately above, the ladder cord 220, the middle cord 221, the upper weft 221a, the lower weft 221b, the front vertical cord 222, the rear vertical cord 223, the slat clip 230, and the base 231 As for the locking piece 232 and the groove 233, the slat 110 of the first embodiment, the slat 111 immediately above, the ladder cord 120, the middle cord 121, the upper weft 121a, the lower weft 121b, the front vertical cord 122, the rear Regarding the same points as the vertical cord 123, the slat clip 130, the base 131, the locking piece 132, and the groove 133 on the side, the repeated description is omitted.

  This embodiment employs the following configuration as an application example of the blind 100 of the first embodiment. That is, in the blind 200 of the present embodiment, the structure for fixing the slat 211 and the middle cord 221 immediately above is different between the central portion and both ends of the slat 211 in the longitudinal direction. That is, in the central portion in the longitudinal direction of the slat 211 immediately above, as shown in FIG. 6, the slat 211 just above is placed on the weft 221a above the middle cord 221 by the slat clip 230, as in the first embodiment. Fix it.

  On the other hand, at both ends in the longitudinal direction of the immediately above slat 211, as shown in FIG. 7, the immediately above slat 211 is vertically moved with the positional relationship of the upper and lower wefts 221a and 221b of the middle cord 221 upside down. Are inserted between the wefts 221a and 221b. Thus, when the upper slat 211 is inserted between the upper and lower wefts 221 a and 221 b of the middle cord 221, the lower weft 221 b is arranged above the upper slat 211 and below the immediately upper slat 211. The upper weft 221a is arranged.

  As shown in FIG. 8, the slat clip 230 is disposed under the upper weft 221 a so that the upper weft 221 a is received in the groove 233 of the base portion 231, and the locking piece 232 is positioned immediately above the slat 211. It is latched by the other surface of. Thereby, the upper weft 221a is clamped and fixed between the base 231 and the slat 211 immediately above. Therefore, in the middle cord 221, the lower weft 221 b is not fixed to the immediately above slat 211, and only the upper weft 221 a is fixed to the immediately above slat 211.

  The configuration of the blind 200 according to the present embodiment has been described above. Next, the operation of the blind 200 according to the present embodiment will be described with reference to FIGS.

  When the ladder cord 220 is not inclined, that is, when both the front and rear vertical cords 221 and 222 are wound around the rotating drum to the same extent, as shown in FIG. 9, the upper slat group 210a is horizontal, The lower slat group 210b is tilted. Thereby, the light from the outside can be taken in the upper part of the blind 200. On the other hand, in the lower part of the blind 200, the light and line of sight from the outside can be blocked to some extent. In this way, variations in the state of incident and shielded light can be provided.

  Next, when the front vertical cord 222 is wound around the rotating drum and raised, and the rear vertical cord 223 is unwound from the rotating drum and lowered, the upper slat group 210a and the lower slat group 210b rotate, As shown in FIG. 10A, all the slats 210 are closed. As described above, in the middle cord 221 that supports both longitudinal ends of the slat 211 immediately above, only the upper weft 221a disposed below the slat 211 directly above is fixed to the slat 211 directly above, The weft 221b is not fixed to the slat 211 directly above.

  For this reason, as shown in FIG. 10B, the slat 211 immediately above rotates while being supported by the upper weft 221a. Since the central portion in the longitudinal direction of the slat 211 immediately above is also supported by the weft thread 221a on the middle cord 221, the height of the slat 211 directly above the middle cord 221 is supported at both ends and the central portion in the longitudinal direction. Almost matches. Therefore, the slat 211 directly above has no difference in rotational performance over the entire length in the longitudinal direction, and can be rotated accurately.

(Effect of 2nd Embodiment)
As described above, according to the present embodiment, the middle cords 221 positioned at both ends in the longitudinal direction of the slats 210 are slats between the upper and lower wefts 221a and 221b in an inverted state. 210 is inserted. For this reason, the weft on which the slat 210 is placed becomes the upper weft 221a originally located above, so that both longitudinal ends of the slat 211 immediately above are fixed to the upper weft 221a by the slat clip 230. .

  On the other hand, the central portion in the longitudinal direction of the slat 211 directly above is fixed by the upper weft 221a and the slat clip 230. Thus, the slat 211 immediately above is fixed to the upper weft 221a by the slat clip 230 at both ends and the center in the longitudinal direction. Therefore, the heights of both ends in the longitudinal direction of the slat 211 directly above and the center of the slat 211 coincide with each other, and there is no difference in the rotational properties of the slat 211 immediately above, thereby enabling more accurate rotation.

  Also, in general, in blinds where the lifting cord is not inserted into the slats, in order to prevent lateral displacement of the slats, notches are provided at both ends in the longitudinal direction of the slats, and ladder cords are arranged at the notches. ing. When a slat having such a notch is placed on the middle cord, the notch is inserted into the middle cord. For this reason, both end portions in the longitudinal direction sink with respect to the middle cord, and the central portion is located on the middle cord, and the height position is different between the both ends and the middle portion of the slat. . Thus, if the height differs in the longitudinal direction of the slat, a difference in rotational performance will occur in the longitudinal direction of the slat.

  Even when a slat having such a notch is applied to the present embodiment, the slat 211 directly above the slat 211 is fixed to the upper weft 221a by both slat clips 230 at both ends and the center in the longitudinal direction. For this reason, the slat 211 immediately above does not fall with respect to the middle stage cord 221 by the depth of the notch, and the heights of both ends and the center in the longitudinal direction coincide. Therefore, the slat 211 directly above has no difference in rotational properties in the longitudinal direction, and can be rotated more accurately.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to this example. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

  For example, in the above-described embodiment, the middle cord is composed of two wefts, but the present invention is not limited to this, as long as it has a function of placing a slat on top or inserting it between them. The number of wefts may be arbitrary.

  Moreover, in the said embodiment, although the slat clip which consists of a base and a locking piece which clamp the substantially full length of a weft between slats as an example of a slat fixing member was described, it is not limited to this example. For example, if it is the structure which can fix a slat and a weft, it is good also as a structure which fixes a part of weft to a slat.

  In the above embodiment, the number of ladder cords is three, and the center portion and both ends in the longitudinal direction of the slat are supported by the ladder cords. For example, the number of ladder cords depends on the size and design of the blinds. Optional.

  Further, in the above embodiment, the upper slat group is configured by forming a length stuffing portion in which part of the vertical cord before and after the ladder cord is halfway up and down in the vertical direction of the front vertical cord. However, the present invention is not limited to this example, although the switching portion capable of supporting the lower slat group and the lower slat group at different angles is provided in the ladder cord. For example, the following example may be used. That is, the upper and lower slat groups may be supported by different ladder cords. That is, the upper slat group is supported by the upper ladder cord supporting only the upper slat group, and the lower slat group is supported by the lower ladder cord supporting only the lower slat group. The upper ladder cord and the lower ladder cord are independent or rotate with a time difference, so that different slat angles can be set up and down. By providing the slat clip on the lowermost slat of the upper slat group of the blind thus configured, the shielding performance of the slat during rotation is improved.

  As another example, the following may be used. That is, all slats are supported on the ladder cord at the same angle, and the operation cord is connected to a part of the ladder cord. Then, by operating the operation cord, a part of the ladder cord is pulled up, and only the lower slat group below the raised portion rotates, so that the upper and lower slat groups are separated from the raised portion. Different angles may be used. By providing the slat clip on the lowermost slat of the upper slat group of the blind thus configured, the shielding performance of the slat during rotation is improved.

  Further, in the above embodiment, the slat has been described in a configuration in which the center portion in the longitudinal direction is placed on the upper and lower wefts of the middle cord and both ends are inserted between the upper and lower wefts. The position of the slat that is placed or inserted between the upper and lower wefts is not limited to this example. Further, the slat may be supported only by being placed on the upper and lower wefts over the entire length, or may be only inserted between the upper and lower wefts.

  In the above-described embodiment, the configuration in which the slats are inserted between the upper and lower wefts while the positional relationship between the upper and lower wefts is reversed upside down has been described. However, the slats are not inserted between the upper and lower wefts without reversing the positional relationship. It may be inserted. With such a configuration, the upper weft is arranged on the upper side of the slat, the lower weft is arranged on the lower side, and the lower weft is fixed by the slat clip. For this reason, since the both ends of a longitudinal direction are fixed between the lower wefts and the center part is fixed between the upper wefts, each slat is fixed by one weft. . Therefore, the shielding property of the slat is improved while preventing the lateral displacement of the slat.

  Moreover, in the said embodiment, although it was set as the structure of the blind which can be supported with a ladder cord by the inclination angle from which an upper slat group and a lower slat group differ, it is not limited to this example. For example, it may be a blind in which all slats are supported by a ladder cord at the same inclination angle.

  Moreover, in the said embodiment, although it was set as the structure which provides a slat clip in the slat directly above, it is not limited to this example. For example, it may be provided in an arbitrary slat of one stage or a plurality of stages located in a predetermined stage including the uppermost slat.

  Moreover, in the said embodiment, although the raising / lowering cord was set as the structure arrange | positioned along the side edge of each slat, it is not limited to this example. For example, the elevating cord may be configured to penetrate the slat.

  In the above embodiment, the slat clip is passed between the upper and lower wefts to fix the slat and the upper weft, and the lower weft is free. However, the present invention is not limited to this. For example, it is good also as a structure by which the lower weft was cut | disconnected only in the location which fixes a slat and the upper weft with a slat clip.

100, 200 Blind 110, 210 Slat 110a Upper slat group 110b Lower slat group 111, 211 Upper slat 120, 220 Ladder cord 120a Switching unit 121, 221 Middle cord 121a, 221a Weft 121b, 221b Lower weft 122, 222 Vertical cord 123 on the front side 123, 223 Vertical cord on the rear side 124 Knob member 130, 230 Slat clip (slat fixing member)
131, 231 Base 132, 232 Locking piece 133, 233 Groove 140 Head box 150 Lifting cord 160 Operation rod 170 Outlet 171 Stopper 180 Operation unit 181 Cord 190 Bottom rail

Claims (6)

In a blind provided with a ladder cord for supporting a plurality of slats in an aligned state and making the inclination of the slats variable, and a slat fixing member for fixing the slats to the ladder cords,
The ladder cord has a middle cord that supports the slat, and the middle cord is composed of a plurality of wefts arranged vertically.
The blind according to claim 1, wherein the slat fixing member fixes the predetermined slat only to the upper weft for the predetermined slat.   The blind according to claim 1, wherein the predetermined slat is placed on the upper and lower wefts, and the slat fixing member is inserted between the upper and lower wefts. The ladder cord is provided at both ends and the center in the longitudinal direction of the slat,
The central portion of the predetermined slat in the longitudinal direction is placed on the upper and lower wefts, and is fixed only to the upper weft by the slat fixing member,
The both ends in the longitudinal direction of the predetermined slat are inserted between the upper and lower wefts, and are fixed only to the lower weft by the slat fixing member. The listed blind.   The positional relationship between the upper and lower wefts is vertically inverted between a longitudinal center portion of the predetermined slat and both longitudinal end portions of the predetermined slat. Blinds.   The blind according to any one of claims 1 to 4, wherein the predetermined slat and the slat immediately below the slat can be supported at different inclination angles by the ladder cord. The blind according to any one of claims 1 to 5, wherein an elevating cord for raising and lowering the slat is disposed along a side edge in a longitudinal direction of the slat.