JP6294154B2 - blind - Google Patents

Description

  The present invention relates to a horizontal blind that reduces displacement of a slat.

  As a conventional horizontal blind, lifting slats such as a tape-shaped lifting tape having a predetermined width in the longitudinal direction of the slats, a cord-shaped lifting cord having a predetermined diameter, etc. There is known a blind that is inserted through an insertion hole provided in the.

  Further, as one of such blinds, the insertion hole of the lifting tape provided near the rear edge of the slat and the notch through which the ladder cord provided at the front edge of the slat is inserted are different in the longitudinal direction of the slat. A blind has been known in which the insertion hole and the notch are covered with other slats to improve airtightness (see Patent Document 1).

JP 2002-38849 A

  However, according to the above-mentioned blind, since the clearance in the longitudinal width of the slat is provided in any of the insertion hole through which the lifting string is inserted and the notch through which the ladder cord is inserted, by operating the blind, There was a problem that the position of the slat in the longitudinal direction shifted with respect to the lifting tape or ladder cord.

  Hereinafter, this problem will be described with reference to FIGS. FIG. 15 is a front view of a conventional horizontal brand. FIG. 16 is a plan view showing the insertion hole of the lifting tape provided in the slat. FIG. 17 is a plan view showing the insertion hole of the lifting / lowering cord provided in the slat.

  As shown in FIG. 15, the conventional blind 9 supports a head box 90, a bracket 91, a bottom rail 92, a plurality of slats 93 disposed between the head box 90 and the bottom rail 92, and supports the slats 93 in an aligned state. The ladder cord 94 includes a lifting tape 95 that hangs down from the head box 90, passes through the slat 93, and has a lower end fixed to the bottom rail 92.

  As shown in FIG. 16, the slat 93 is provided with an insertion hole 931 for inserting the elevating tape 95. The width of the elevating tape 95 is 6 mm, whereas the insertion hole 931 is arranged in the longitudinal direction. The width is 8 mm and a clearance of 2 mm is provided. When such a clearance is provided, the slats 93 may be displaced in the longitudinal direction, and not all the slats 93 are displaced in the same direction. According to such a blind 9, as shown in FIG. 15, a maximum displacement of 2 mm occurs in the position in the longitudinal direction between the plurality of slats 93 adjacent in the vertical direction, resulting in a loss of aesthetics when installed.

  The above-mentioned problem may occur not only when the lifting tape is used but also when the lifting cord is used. As shown in FIG. 17, when a lifting cord 95 a having a diameter of 1.6 mm is adopted and a slat 93 a provided with an insertion hole 931 a having a width in the longitudinal direction of 2.5 mm is used, a plurality of adjacent vertically adjacent pieces are used. A maximum deviation of 0.9 mm can occur in the longitudinal position between the slats 93a.

  Therefore, the present invention has been made in view of such problems, and an object of the present invention is to provide a blind capable of reducing the displacement of the slat in the longitudinal direction.

  In order to solve the above-described problems, the blind according to the present embodiment includes a ladder cord suspended from the head box, a plurality of slats supported in an aligned state by the ladder cord, and a plurality of slats suspended from the head box. Each of the plurality of slats is provided with an insertion hole through which the lifting string is inserted, and the width of at least a part of the insertion hole is larger than the width of the lifting string in the longitudinal direction of the slat. It is formed in the 2nd width | variety which is smaller than a width | variety and is a magnitude | size beyond the width | variety of a raising / lowering string.

  According to the present invention, it is possible to reduce the displacement of the slat in the longitudinal direction.

It is a front view of the blind which concerns on 1st Embodiment. It is side surface sectional drawing which shows the insertion hole of the slat in the blind which concerns on 1st Embodiment. It is a top view of the slat provided with the insertion hole which has a guide part in one end. It is a top view of the slat in which the insertion hole which has a guide part in one end was provided partially. It is a top view of the slat in which the insertion hole which has a guide part in both ends was provided partially. It is a top view of the slat provided with a part of insertion hole which makes the whole short direction direction a guide part. It is a front view of the blind which concerns on 2nd Embodiment. It is side surface sectional drawing of the blind which descend | falls from the state which the slat went up, and becomes a fully-closed state. It is side surface sectional drawing of the blind from which a slat rises from an anti-fully closed state. It is side surface sectional drawing which shows the penetration hole of the slat in the blind which concerns on 2nd Embodiment. It is a top view of the slat provided with the insertion hole which has a guide part in both ends. It is a top view of the slat in which the insertion hole which has a guide part in both ends was provided partially. It is a top view of the slat in which the insertion hole which has a guide part in one end was provided partially. It is a top view of the slat provided with a part of insertion hole which makes the whole short direction direction a guide part. It is a front view of the conventional blind. It is a top view of the slat in the conventional blind provided with the insertion hole of the raising / lowering tape. It is a top view of the slat in the conventional blind provided with the insertion hole of the raising / lowering cord.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

<First Embodiment>
(Blind configuration)
First, the configuration of the blind according to the first embodiment will be described with reference to FIG. FIG. 1 is a front view of a blind according to the first embodiment. 1A shows the blind in the fully open state, and FIG. 1B shows the blind in the fully closed state. In the following explanation, when the longitudinal direction of the blind is viewed from the side, and the installed blind is viewed from the side, the installation surface side (for example, the window side) is the rear side, and the opposite (for example, the indoor side) is the front side. To do.

  As shown in FIG. 1, the blind 1 according to the first embodiment is a horizontal blind, and includes a head box 10, a bracket 11, a bottom rail 12 disposed at the lower end of the blind 1, a head box 10 and a bottom rail 12. A plurality of slats 13 disposed as shielding materials between the head box 10 and a ladder cord 14 that supports the plurality of slats 13 in an aligned state, and hangs down from the head box 10 and has a lower end fixed to the bottom rail 12; A lifting tape 15 having a predetermined width is provided.

  The head box 10 is fixed to a window frame (not shown) or the like by a bracket 11, and includes a rotary shaft 102 that is rotatably supported, a winding drum 101 that rotates in conjunction with the rotation of the rotary shaft 102, and A motor 103 for rotating the rotating shaft 102, a control unit 106 for controlling the driving of the motor 103, a power supply unit 104 for supplying power to the motor 103, and a power transformer 105 are provided.

  The rotary shaft 102 extends in the longitudinal direction so as to be rotatable in the head box 10. The rotary shaft 102 is inserted into the winding drum 101 that is pivotally supported at a predetermined position of the head box 10. The rotation can be transmitted in both directions.

  The upper end of the lifting / lowering tape 15 is fixed to the winding drum 101 so as to be wound and unwound. As a result, the rotating shaft 102 is rotated to rotate the take-up drum 101, and the elevating tape 15 is taken up and unwound to raise and lower the bottom rail 12, and as a result, the slat 13 can be raised and lowered. Further, the upper ends of the pair of vertical cords of the ladder cord 14 are coupled to the winding drum 101 so as to be integrally rotatable only by a predetermined angle of rotation. Thereby, the winding drum 101 can be rotated and the ladder cord 14 can be tilted. By tilting the ladder cord 14, the slat 13 can be rotated from the fully open state shown in FIG. 1A to the fully closed state shown in FIG. Here, the fully open state indicates a state in which the slats 13 are horizontal, the fully closed state indicates a state in which the upper surface of the slats 13 is closed toward the rear, and the anti-fully closed state indicates that the upper surface of the slats 13 is in front. Indicates a closed state.

(Structure of slats)
Next, the insertion hole provided in the slat will be described. FIG. 2 is a side cross-sectional view showing the insertion hole of the slat in the blind according to the first embodiment. FIG. 3 is a plan view of a slat provided with an insertion hole having a guide portion at one end. In FIG. 2, (a) to (c) show an anti-fully closed state, a fully opened state, and a fully closed state, respectively. The plurality of slats are configured similarly.

  As shown in FIG. 2, the slat 13 is provided with an insertion hole 131 having a predetermined width in the short direction, and the elevating tape 15 is inserted into the insertion hole 131 at substantially the center in the short direction. When the blind 1 is in the anti-fully closed state as shown in FIG. 2 (a), the elevating tape 15 contacts the rear end of the insertion hole 131, and when it is in the fully open state as shown in FIG. 2 (b). It does not contact either the front end or the rear end of the insertion hole 131 and contacts the front end of the insertion hole 131 when it is in the fully open state as shown in FIG. In the following explanation, the front end of the insertion hole means the side located at the front end of the slat among the sides forming the insertion hole, and the rear end of the insertion hole means the rear of the slat among the sides forming the insertion hole. It shall mean the side located at the side edge. The short direction means the short direction of the slat.

  As shown in FIG. 3, a plurality of insertion holes 131 are provided with a space in the longitudinal direction with respect to one slat 13. Each insertion hole 131 is formed with a first width in the longitudinal direction from a rear end (lower side in the figure) to a position near the front end (upper side in the figure), and the front end is formed with a second width in the longitudinal direction. To be inclined from the front end to the front end. Here, the first width is a width provided with a clearance with respect to the width of the lifting tape 15, that is, a width larger than the width of the lifting tape 15, and the second width is smaller than the first width and larger than the width of the lifting tape 15. The width is a size, preferably the same width as that of the lifting tape 15. Further, the position near the front end is a position away from the front end by a predetermined distance in the short direction. It should be noted that the second width is arranged so as to be positioned approximately in the center of the first width. For example, one end in the longitudinal direction of the first width and the second width is aligned and only the other end is inclined. The insertion hole 131 may be formed.

  By forming the insertion hole 131 in this way, when the blind 1 is fully closed as shown in FIG. 2C, the longitudinal position of the elevating tape 15 relative to the slat 13 is the second width. The position is corrected to be the position. Since tension is generated in the lifting tape 15 due to the weight of the bottom rail 12, the position of the slat 13 in the longitudinal direction is corrected by correcting the position of the lifting tape 15, and therefore, the positional deviation of the slat 13 in the longitudinal direction is corrected. Reduced. In addition, when the rear end of the insertion hole 131 is formed to the second width and the blind 1 is in the anti-fully closed state as shown in FIG. 2A, the position of the slat 13 in the longitudinal direction is corrected. Anyway.

  Further, as shown in FIG. 4, the slat 13 may be configured as a slat 13 a having at least one insertion hole 131 and having an insertion hole 130 as another insertion hole. Here, the insertion hole 130 is a conventional insertion hole formed in the first width over the entire short direction.

  Moreover, you may comprise the slat 13 as the slat 13b which has at least 1 penetration hole 132, as shown in FIG. The insertion hole 132 has a front end and a rear end formed in a second width in the longitudinal direction, a first width in the longitudinal direction from a position near the front end to a position near the rear end, and inclined from the position near the front end to the front end, and It is formed so as to be inclined from the position near the rear end to the rear end. Here, the position near the rear end is a position away from the rear end by a predetermined distance in the short direction. Here, the second width at the front end and the second width at the rear end are formed at the same position in the longitudinal direction. According to such a slat 13b, when the blind 1 is in the anti-fully closed state as shown in FIG. 2A, or when the blind 1 is in the fully closed state as shown in FIG. The position of the elevating tape 15 in the longitudinal direction with respect to 13b is corrected so as to be the position of the second width.

  Further, the slat 13 may be configured as a slat 13c having at least one insertion hole 133 as shown in FIG. The insertion hole 133 is formed in the second width over the entire short direction. In addition, since the clearance with respect to the width | variety of the raising / lowering tape 15 is not provided in the insertion hole 133, the slat 13c can comprise only one part insertion hole as the insertion hole 133, and can comprise another insertion hole as the insertion hole 130. FIG. desirable.

  As described above, among the plurality of insertion holes provided in the slat, by forming at least one insertion hole so as to have the second width in the longitudinal direction at least at any position in the short-side direction, Misalignment can be corrected. Moreover, the lifting string can be guided to the position of the second width by forming the insertion hole to be inclined from the first width to the second width. Moreover, in the insertion hole, the width of a part of the longitudinal direction in the short side direction is set to the second width, so that the displacement of the slat can be corrected while reducing the interference between the insertion hole and the lifting tape.

<Second Embodiment>
(Blind configuration)
Next, the configuration of the blind according to the second embodiment will be described with reference to FIG. FIG. 7 is a front view of a blind according to the second embodiment. 7A shows the blind in the fully open state, and FIG. 7B shows the blind in the fully closed state.

  As shown in FIG. 7, the blind 2 according to the second embodiment is a horizontal brand, and hangs down from a head box 20, a bracket 21, a bottom rail 22 disposed at the lower end of the blind 2, and one end of the head box 20. An endless operation cord 23, a plurality of slats 24 arranged as a shielding material between the head box 20 and the bottom rail 22, a ladder cord 25 hanging from the head box 20 and supporting the plurality of slats 24 in an aligned state, a head An elevating cord 26 that hangs down from the box 20 and has a lower end fixed to the bottom rail 22 is provided.

  The head box 20 is fixed to a window frame or the like (not shown) by a bracket 21, and includes a rotary shaft 201 that is rotatably supported, a lifting drum 202 that rotates in conjunction with the rotation of the rotary shaft 201, and a rotary drum. 203.

  The operation cord 23 is wound around a pulley (not shown) disposed in the head box 20 and can be driven to rotate. The rotation of the pulley can be transmitted to the rotation shaft 201 via the clutch, and the rotation from the rotation shaft 201 is blocked by the clutch, and only the rotation from the pulley is transmitted to the rotation shaft 201.

  The rotating shaft 201 extends in the longitudinal direction so as to be rotatable in the head box 20, and is inserted into the lifting drum 202 pivotally supported at a predetermined position of the head box 20 so as to be relatively rotatable. The rotation can be transmitted in both directions. The rotating shaft 201 is inserted into the rotating drum 203 so as not to be relatively rotatable.

  An upper end of the lifting / lowering cord 26 is fixed to the lifting / lowering drum 202 so as to be wound and unwound. As a result, the rotating shaft 201 is rotated to rotate the elevating drum 202 and the elevating cord 26 is wound and unwound, whereby the bottom rail 22 can be raised and lowered, and the slat 24 can be raised and lowered.

  The upper end of the pair of vertical cords of the ladder cord 25 is connected to the rotating drum 203 so as to follow the rotation within a predetermined range angle with respect to the rotating drum 203. Thereby, the rotating drum 203 can be rotated and the ladder cord 25 can be tilted. By tilting the ladder cord 25, the slat 24 can be rotated from the fully open state shown in FIG. 7A to the fully closed state shown in FIG.

(Blind operation)
Next, the operation of the blind will be described. FIG. 8 is a side cross-sectional view of the blind in which the slat is lowered from the raised state to the fully closed state. FIG. 9 is a side sectional view of the blind in which the slat rises from the anti-fully closed state.

  When the slat 24 is raised to the upper limit as shown in FIG. 8 (a) and the rotary shaft 201 is rotated clockwise in FIG. ), The elevating drum 202 unwinds the elevating cord 26 and the bottom rail 22 descends. Here, the ladder cord 25 is lowered in a state where the rear vertical cord is lowered as compared with the front vertical cord, and the ladder cord 25 is tilted, so that the slat 24 is inclined and is fully closed. When the rotating shaft 201 is continuously rotated clockwise, the bottom rail 22 reaches the lower limit position as shown in FIG.

  Further, in the state shown in FIG. 8C, when the rotary shaft 201 is rotated counterclockwise in FIG. 9 by pulling down the front side of the operation cord 23, the vertical cord on the rear side of the ladder cord 25 is changed. As it descends, the vertical cord on the front side rises and the ladder cord 25 tilts, so that the slat 24 tilts and goes through a fully open state to an anti-fully closed state as shown in FIG. If the rotating shaft 201 is continuously rotated counterclockwise even after the ladder cord 25 becomes unable to follow the rotation of the rotating shaft because of the anti-fully closed state, the lifting drum 202 winds the lifting cord 26, and FIG. As shown in FIG. 9B, the bottom rail 22 rises in the anti-fully closed state, and the slat 24 rises to the upper limit as shown in FIG.

(Structure of slats)
Next, the insertion hole provided in the slat will be described. FIG. 10 is a side cross-sectional view showing the insertion hole of the slat in the blind according to the second embodiment. FIG. 11 is a plan view of a slat provided with an insertion hole having a guide portion at one end. In FIG. 10, (a) to (c) show an anti-fully closed state, a fully opened state, and a fully closed state, respectively. The plurality of slats are configured similarly.

  As shown in FIG. 10, the slat 24 is provided with an insertion hole 241 having a predetermined width in the short direction, and the elevating cord 26 is inserted into the insertion hole 241 at a substantially center in the short direction. When the blind 2 is in the anti-fully closed state as shown in FIG. 10 (a), the lifting / lowering cord 26 contacts the rear end of the insertion hole 241. When the blind cord 26 is in the fully open state as shown in FIG. 10 (b). It does not contact any of the front end and the rear end of the insertion hole 241 and contacts the front end of the insertion hole 241 when it is in the fully open state as shown in FIG.

  As shown in FIG. 11, a plurality of insertion holes 241 are provided at intervals in the longitudinal direction with respect to one slat 24. Each insertion hole 241 is formed with a second width in the longitudinal direction at the front end and the rear end, is formed with a first width in the longitudinal direction from the position near the front end to the position near the rear end, and is inclined from the position near the front end to the front end. And is formed so as to be inclined from the position near the rear end to the rear end. Here, the first width is a width provided with a clearance with respect to the diameter as the width of the lifting / lowering cord 26, and the second width is a width smaller than the first width and larger than the diameter of the lifting / lowering cord 26, preferably It has the same width as the diameter of the lifting / lowering cord 26. According to such a slat 24, when the blind 2 is in the anti-fully closed state as shown in FIG. 10 (a), or when the blind 2 is in the fully closed state as shown in FIG. 10 (c). The position in the longitudinal direction of the lifting / lowering cord 26 with respect to 24 is corrected so as to be the position of the second width.

  Further, as shown in FIG. 12, the slat 24 may be configured as a slat 24a having at least one insertion hole 241 and having an insertion hole 240 as another insertion hole. Here, the insertion hole 240 is a conventional insertion hole that is formed in a first width over the entire short direction and has a front end and a rear end formed in an arc shape.

  Further, the slat 24 may be configured as a slat 24b having at least one insertion hole 242 as shown in FIG. The insertion hole 242 has a front end formed with a second width in the longitudinal direction, formed with a first width in the longitudinal direction from a position near the front end to a position near the rear end, and formed so as to be inclined from the position near the front end to the front end. The end is formed in an arc shape. According to such a slat 24b, when the blind 2 is fully closed as shown in FIG. 10C, the longitudinal position of the lifting / lowering cord 26 with respect to the slat 24b becomes the second width position. It is corrected to. As shown in FIG. 8C, since the blind 2 is fully closed when lowered, the slat 24b corrects the displacement of the slat 24b during the lowering operation. In this way, by forming the second width only at the portion where the lifting / lowering cord 26 and the slat 24b abut at the time of the lowering operation, the left and right positions of the slat are corrected at the time of the lowering operation without being raised while being caught in the insertion hole. be able to.

  Further, the slat 24 may be configured as a slat 24c having at least one insertion hole 243 as shown in FIG. The insertion hole 243 is formed in the second width over the entire short direction, and the front end and the rear end are formed in an arc shape. In addition, since the clearance with respect to the diameter of the raising / lowering cord 26 is not provided in the insertion hole 243, the slat 24c can comprise only one insertion hole as the insertion hole 243, and can comprise another insertion hole as the insertion hole 240. desirable.

  As described above, even in a blind using a lifting / lowering cord instead of a lifting / lowering tape, at least one insertion hole among the plurality of insertion holes provided in the slat has a second width at least at any position in the lateral direction. By forming in this way, the position of the slat can be corrected.

  As described above, the insertion hole through which a long lifting string having an arbitrary cross-sectional shape such as a lifting tape or a lifting cord is inserted is not less than the width of the lifting string and a clearance is provided in the width of the lifting string. By forming so as to have a second width smaller than one width, it is possible to reduce the displacement of the slats in a blind that uses either a lifting tape or a lifting cord for lifting the bottom rail. In addition, as the part formed in the second width, only the front end, only the rear end, the front end and the rear end, and the entire region in the short side direction are mentioned. However, the second width forming part is used for the blind lifting operation and the slat rotation operation. By responding, it is possible to correct the displacement of the slats while further reducing the interference between the insertion hole and the lifting string.

  In both the first embodiment and the second embodiment, the lifting / lowering string is inserted into the insertion hole. However, at least a part of the notch provided on the front edge or the rear edge of the lifting / lowering string is provided in the first or second edge. You may make it form in 2 widths. Further, in the above description, each of the plurality of slats is configured similarly, but it is sufficient that at least one insertion hole partially formed in the second width is formed in each slat. If necessary, the insertion hole formed in the second width may be varied depending on the slat, and the portion formed in the second width may be varied depending on the insertion hole.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

10, 20 Head box 13, 24 Slat 14, 25 Ladder cord 15 Lifting tape 26 Lifting cord 131, 241 Insertion hole

Claims (5)

A ladder cord (14, 25) suspended from the head box (10, 20), a plurality of slats (13, 24) supported in alignment by the ladder cord, and a plurality of slats suspended from the head box. In a brand comprising an elevating string (15, 26) that is capable of being moved relative to a slat and is provided so that tension is generated during the elevating of a plurality of slats ,
Each of the plurality of slats is provided with an insertion hole (131, 241) through which the lifting / lowering string is inserted, and at least one of the lateral ends of the slat in the insertion hole has a width of the lifting / lowering string in the longitudinal direction of the slat. A blind having a second width smaller than the larger first width and substantially equal to the width of the lifting strap . The other portion of the insertion hole that is not formed in the second width is formed in the first width, and is formed so as to be inclined from the position formed in the first width to the position formed in the second width. The blind according to claim 1.   3. The blind according to claim 1, wherein among the end portions in the short direction of the slats in the insertion hole, an end portion that abuts when the plurality of slats are moved downward is formed in a second width.   The insertion hole is provided in a plurality in the longitudinal direction of the slat, and at least a part of the width of the at least one insertion hole is formed to be the second width. Blinds. A ladder cord (14, 25) suspended from the head box (10, 20), a plurality of slats (13, 24) supported in alignment by the ladder cord, and a plurality of slats suspended from the head box. In brands with possible lifting strings (15, 26),
Each of the plurality of slats is provided with an insertion hole (131, 241) through which the lifting string is inserted, and the width of at least a part of the insertion hole is smaller than the first width larger than the lifting string in the longitudinal direction of the slat. And a second width that is larger than the width of the lifting string,
A plurality of insertion holes are provided in the longitudinal direction of the slat. Among the plurality of insertion holes, the entire short direction of the slat in one insertion hole is formed in the second width, and the entire short direction of the slat in the other insertion hole is formed. features and to Lube Rind to be formed on the first width.

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