JP5364431B2 - Horizontal blind slat angle adjustment device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slat angle adjustment device of a horizontal blind capable of attaching a rudder cord or a rudder tape by selecting either of them and preventing a suspension position of the rudder cord from being deviated. <P>SOLUTION: In this horizontal blind supporting a tilt drum turnably in a head box and turning the tilt drum by a tilt shaft to turn a slat, a hook 18 capable of supporting the rudder tape 2 is attached to the tilt drum 9, and a hooking part 21 supporting the rudder cord to prevent it from moving in the longitudinal direction of the head box is provided on the hook 18. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to an angle adjusting device for adjusting the angle of a slat of a horizontal blind.

  In the horizontal blind, a plurality of slats are suspended from a head box via a ladder cord. The ladder code is suspended and supported from a tilt drum disposed in the head box, and each slat is rotated via the ladder code when the tilt drum is rotationally driven by a tilt shaft.

  In addition, a horizontal blind has been proposed in which a ladder tape specification having an aesthetics different from the ladder code specification can be selected by using a horizontal blind having the same function and supporting the slat with a ladder tape instead of the ladder code.

As described above, in the horizontal blind in which either the ladder cord or the ladder tape can be selected, the ladder cord or the ladder tape is suspended and supported by the tilt drum.
In order to suspend and support the ladder tape from the tilt drum configured to suspend the ladder cord, a string corresponding to the warp of the ladder cord is attached to the upper end of the ladder tape, and the string is attached to the tilt drum. doing.

  Further, in the tilt drum configured to support the ladder tape in a suspended manner, a hook is provided on the tilt drum, and the ladder tape can be supported in a suspended manner from the hook. In order to suspend and support the ladder cord from such a tilt drum, the upper end of the ladder cord is attached to the hook.

  In Patent Documents 1 to 3, as a configuration similar to a configuration in which a ladder cord or a ladder tape is suspended from a tilt drum, a configuration in which the ladder cord is suspended from a suspension device or a lifting tape is suspended from a winding device. A lower supporting structure is disclosed.

Reality No. 5-24796 Utility model registration No. 2546981 Shoko 56-46464

In order to suspend and support the ladder tape from the tilt drum for suspending the ladder cord, it is necessary to attach a string to the upper end of the ladder tape, which is complicated.
Further, when the ladder cord is hooked on the hook for hanging the ladder tape, the ladder cord hanging position may be displaced in the width direction of the hook, that is, the longitudinal direction of the head box. As a result, a deviation occurs between the lifting position of the lifting / lowering cord and the appearance is deteriorated, or the slat lifting / lowering operation may be hindered due to unnecessary interference between the weft of the ladder cord and the lifting / lowering cord.

  An object of the present invention is to provide a slat angle adjusting device that allows a ladder cord and a ladder tape to be selected and attached, but does not cause a shift in the suspended position of the ladder cord.

In a horizontal blind in which a tilt drum is rotatably supported in a head box and the tilt drum is rotated by a tilt shaft to rotate a slat , the slat is suspended from the tilt drum. a strip-shaped ladder tape and string-like ladder cord and a hook which enables the support by selecting a supporting and attached to said hook, hooking to immovably support the ladder cord in the longitudinal direction of the headbox Set up a section.

According to a second aspect of the present invention, the hook is formed by bending a wire rod into a square frame shape so that the ladder tape can be supported on one side thereof, and the hooking portion is provided on the one side.
According to a third aspect of the present invention, one side of the hook has a length equal to the width of the ladder tape, and the hooking portion is provided at the center of the one side.

According to a fourth aspect of the present invention, the hook portion is formed by bending the wire toward the outside of the square frame.
According to a fifth aspect of the present invention, a pair of hooks are attached to the tilt drum, and either the ladder tape or the ladder cord is suspended and supported from the pair of hooks.

According to a sixth aspect of the present invention, one hook is attached to the tilt drum, and the hooks are provided at two locations facing the hook.
According to a seventh aspect of the present invention, the tilt drum is provided with an engagement piece that engages with the opening end of the hook and a fitting groove that allows the hook to be elastically fitted.

  According to the present invention, it is possible to provide a slat angle adjusting device that allows a ladder cord and a ladder tape to be selected and attached, and that does not cause a shift in the suspended position of the ladder cord.

It is a front view which shows the horizontal blind of one Embodiment. It is a side view which shows the horizontal blind of one Embodiment. It is a top view which shows the horizontal blind of one Embodiment. It is a disassembled perspective view which shows a tilt drum and a hook. It is a top view which shows the tilt drum which supported the ladder tape. It is a front view which shows the horizontal blind made into the ladder code specification. It is a front view which shows another example of a hook.

  Hereinafter, an embodiment embodying the present invention will be described with reference to the drawings. In the horizontal blind shown in FIGS. 1 to 3, a multi-stage slat 3 is supported on a ladder tape 2 that is supported suspended from a head box 1, and a bottom rail 4 is attached to the lower end of the ladder tape 2.

  An elevating cord 5 is inserted into the slat 3 in the vicinity of the support position of the ladder tape 2, and the bottom rail 4 is suspended and supported at the lower end of the elevating cord 5. An upper end of the lifting / lowering cord 5 is wound around a winding shaft 7 rotatably supported by a support member 6 disposed in the head box 1.

  A hexagonal bar-shaped lifting shaft 8 is inserted into the winding shaft 7 so as not to be relatively rotatable. When the lifting / lowering shaft 8 is rotated, the winding shaft 7 is rotated. When the winding shaft 7 is rotated in the winding direction of the lifting / lowering cord 5, the lifting / lowering cord 5 is spirally wound around the winding shaft 7. Then, the bottom rail 4 and the slat 3 are pulled up. When the winding shaft 7 is rotated in the rewinding direction of the lifting / lowering cord 5, the lifting / lowering cord 5 is rewound and the bottom rail 4 and the slat 3 are lowered.

  An upper end of the ladder tape 2 is attached to the tilt drum 9 via a hook 18, and the tilt drum 9 is rotatably supported at one end of the support member 6. A spur gear 10 is integrally formed on one side of the tilt drum 9.

On the side of the support member 6, a support cap 11 is fixed to the head box 1, and the lifting shaft 8 is inserted through the support cap 11.
A tilting shaft 12 having a hexagonal bar shape is rotatably supported by the support cap 11 at an obliquely lower position of the lifting shaft 8, that is, at a lower corner portion in the head box 1. The gear 13 is fitted so as not to be relatively rotatable. When the tilt shaft 12 is rotated, the tilt drum 9 is rotated via the drive gear 13 and the driven gear 10.

  One end of the elevating shaft 8 is connected to the first output shaft of the operation unit 14 attached to one end of the head box 1, and one end of the tilt shaft 12 is connected to the output shaft of the tilt unit 15. . The input shaft of the tilt unit 15 is connected to the second output shaft of the operation unit 14.

  A pulley 16 is rotatably supported at the end of the operation unit 14, and an operation chain 17 is hooked on the pulley 16. When the operation chain 17 is operated to rotate the pulley 16 in the forward and reverse directions, the elevating shaft 8 and the tilt shaft 12 can be driven to rotate.

  The operation unit 14 selects a function of decelerating the rotation of the pulley 16 and transmitting it to the elevating shaft 8 and the tilt unit 15, and a state in which the slat 3 and the bottom rail 4 are prevented from falling by their own weight and a state in which the operation is allowed. A function and a function of not rotating the elevating shaft 8 when the tilt shaft 12 is rotated via the tilt unit 15.

  The tilt unit 15 rotates the tilt shaft 12 based on the rotation of the second output shaft of the operation unit 14, and when the tilt shaft 12 is rotated by a predetermined angle, that is, the slat 3 is fully closed or reverse fully closed. A function is provided to prevent the rotation of the second output shaft from being transmitted to the tilt shaft 12 when rotated to the state.

  The operation of the horizontal blind provided with such an operation unit 14 and tilt unit 15 will be described. As shown in FIG. 2, when the operation chain 17 suspended downward is lowered (in the direction of arrow A), the tilt shaft 12 is rotated via the operation unit 14 and the tilt unit 15.

  Then, the tilt drum 9 is rotated with the rotation of the tilt shaft 12, and the slat 3 is rotated via the ladder tape 2. At this time, the slat 3 is rotated so that the convex surface is on the indoor side.

  When the tilt shaft 12 is rotated by a predetermined angle, that is, when the slat 3 is rotated to the fully closed state in the substantially vertical direction, the operation chain 17 is continuously operated in the same direction by the operation of the tilt unit 15. Also, the rotation of the tilt shaft 12 is stopped.

Further, the elevating shaft 8 is not rotated by the operation of the operation unit 14 until the slat 3 is fully closed.
After the slat 3 is rotated to the fully closed state, when the operation chain 17 is further operated in the direction of arrow A, the lifting shaft 8 is rotated and the winding shaft 7 is rotated in the winding direction of the lifting cord 5. . And the raising / lowering cord 5 is wound up by the winding shaft 7, the bottom rail 4 is pulled up, and the slat 3 is pulled up by the bottom rail 4 one by one.

  If the operation chain 17 is released while the bottom rail 4 and the slat 3 are pulled up to a desired height, the operation unit 14 moves to prevent the lifting shaft 8 from rotating in the lifting / lowering cord unwinding direction. Descent is prevented and held at the desired height.

  As shown in FIG. 2, when the operation chain 17 hanging downward is pulled downward (in the direction of arrow B), the tilt shaft 12 is rotated via the operation unit 14 and the tilt unit 15.

  Then, the tilt drum 9 is rotated with the rotation of the tilt shaft 12, and the slat 3 is rotated via the ladder tape 2. At this time, the slat 3 is rotated so that the convex surface becomes the outdoor side.

  When the tilt shaft 12 is rotated by a predetermined angle, that is, when the slat 3 is rotated to the reverse fully closed state in a substantially vertical direction, the operation chain 17 is continuously operated in the same direction by the operation of the tilt unit 15. However, the rotation of the tilt shaft 12 is stopped.

At this time, the elevating shaft 8 is not rotated by the operation of the operation unit 14 until the slat 3 is in the reverse fully closed state.
After the slat 3 is turned to the reverse fully closed state, when the operation chain 17 is further pulled in the direction of arrow B, the operation unit 14 is allowed to rotate in the lifting / lowering cord rewinding direction by the operation of the operation unit 14. 4 and the slat 3 are lowered by their own weight.

  Then, when the bottom rail 4 and the slat 3 are lowered to a desired height, the operation chain 17 is pulled in the direction of arrow A to bring the slat 3 into a fully closed state, and the operation chain 17 is pulled in the same direction and then released. 14 is in a state of preventing the lifting shaft 8 from rotating in the lifting / lowering cord rewinding direction, and the bottom rail 4 and the slat 3 are held at a desired height.

4 and 5 show a specific configuration of the tilt drum 9 and a hook 18 for attaching the upper end portion of the ladder tape 2 to the tilt drum 9.
The hook 18 is formed in a square frame shape by bending a metal wire, and the upper end portion of the ladder tape 2 can be hooked to a long side portion (one side) 19 facing the opening portion. Yes. At the upper end of the ladder tape 2, a folded portion is sewn to form a bag-shaped portion 20, and the hook 18 can be inserted into the bag-shaped portion 20 so that the upper end of the ladder tape 2 can be attached to the hook 18. It has become.

  A latching portion 21 protruding in a V shape toward the outside of the square frame is formed in the middle portion of the long side portion 19, and the upper end portion of the warp yarn of the ladder cord 22 can be latched as shown in FIG. 6. It has become.

  The tilt drum 9 is formed in a cylindrical shape with a synthetic resin and is rotatably supported by a shaft portion on one side of the support member 6. Flanges 23a and 23b are formed on both sides of the outer peripheral surface of the tilt drum 9, and the driven gear 10 is integrally formed on the outer side of one flange 23a.

  Further, a rotation restricting piece 24 is formed on the side surface of the driven gear 10 in a range of approximately 90 degrees with respect to the rotation center of the driven gear 10. The rotation restricting piece 24 is engaged with the rotation restricting piece formed on the support cap 11 so that the rotation range of the tilt drum 9 is approximately 180 degrees, that is, the slat 3 is in the horizontal direction. Can be rotated only in the range of 90 degrees in the fully closed direction and the reverse fully closed direction.

  On the outer peripheral surface of the tilt drum 9, there are formed mounting portions 25 for attaching the two hooks 18 facing each other. The attachment portion 25 is formed with a fitting groove 27 that allows the short side portion 26 of the hook 18 to be fitted, and an engagement piece 29 that engages with the open end portions 28 a and 28 b of the hook 18.

  The groove width of the opening of the fitting groove 27 is formed slightly smaller than the wire diameter of the hook 18, and when the short side portion 26 of the hook 18 inserted through the ladder tape 2 is pushed into the fitting groove 27, The short side portion 26 is held in the fitting groove 27. In the state where the short side portion 26 is held in the fitting groove 27, the opening end portions 28 a and 28 b are engaged with the engagement piece 29, and the ladder tape 2 is connected to the tilt drum 9 via the hook 18. It is supported by suspension.

  Further, when the hook 18 is attached to the attachment portion 25 with the upper end portion of the warp yarn of the ladder cord 22 attached to the hook portion 21 of the hook 18, the ladder cord 22 is suspended from the tilt drum 9 via the hook 18. Supported.

In the horizontal blind slat angle adjusting apparatus configured as described above, the following operational effects can be obtained.
(1) The ladder tape 2 can be suspended and supported from the tilt drum 9 via the hook 18.
(2) The ladder cord 22 can be suspended and supported from the tilt drum 9 via the hook 18.
(3) Using the common hook 18, either the ladder tape 2 or the ladder cord 22 can be selected and suspended from the tilt drum 9.
(4) The attachment position of the ladder cord 22 at the long side portion 19 of the hook 18 can be held by the hook portion 21. Accordingly, since the displacement of the attachment position of the ladder cord 22 can be prevented, the appearance of the ladder cord 22 is lowered due to a deviation from the lifting position of the lifting / lowering cord, or the weft and lifting / lowering of the ladder cord during the slat lifting operation Unnecessary interference with the cord can be prevented.
(5) Either the ladder tape 2 or the ladder cord 22 can be selected from the common tilt drum 9 and can be supported by suspension.
(6) Since the latching part 21 is provided in the center part of the long side part 19, the center of the width direction of the ladder tape 2 and the hanging position of the ladder cord 22 can be matched. Therefore, even if the ladder tape 2 and the ladder cord 22 are exchanged, the position of the weft does not change, so that the interval between the lifting cord and the weft can be made constant.
(7) The hook 18 can be easily attached to the tilt drum 9 without using a tool.

You may implement the said embodiment in the following aspects.
As shown in FIG. 7, when the hook 30 having the two hooking portions 21 facing each other is provided and attached to the tilt drum, the ladder tape 2 and the ladder cord 22 can be supported by one hook 30. .
The hooking portion may be U-shaped or hemispherical in addition to bending in a V-shape.

  DESCRIPTION OF SYMBOLS 1 ... Head box, 2 ... Ladder tape, 3 ... Slat, 9 ... Tilt drum, 18, 30 ... Hook, 19 ... Long side part (one side), 22 ... Ladder cord, 27 ... Fitting groove, 28a, 28b ... Opening End part, 29 ... engagement piece.

Claims (7)

In a horizontal blind that rotatably supports a tilt drum in a head box and rotates the tilt drum about a tilt axis to rotate a slat.
The tilt drum is attached with a hook that can be supported by selecting a belt- like ladder tape and a string-like ladder cord that supports the slats suspended .
The horizontal blind slat angle adjusting device according to claim 1, wherein the hook is provided with a hook portion that supports the ladder cord so as not to move in the longitudinal direction of the head box.   The horizontal hook slat angle adjusting device according to claim 1, wherein the hook is configured to bend a wire rod into a rectangular frame shape so that the ladder tape can be supported on one side thereof, and the hooking portion is provided on the one side.   The horizontal blind slat angle adjusting device according to claim 2, wherein one side of the hook has a length equal to a width of the ladder tape, and the hooking portion is provided at a central portion of the one side.   4. The slat angle adjusting device for a horizontal blind according to claim 2, wherein the hooking portion is formed by bending the wire toward the outside of the square frame.   The pair of hooks are attached to the tilt drum, and either the ladder tape or the ladder cord is suspended and supported from the pair of hooks. Horizontal blind slat angle adjustment device.   5. The slat angle of a horizontal blind according to claim 1, wherein a single hook is attached to the tilt drum, and the hook is provided at two locations opposite to the hook. Adjusting device.   7. The tilt drum is provided with an engagement piece that engages with an opening end portion of the hook, and a fitting groove that allows the hook to be elastically fitted. 2. A slat angle adjusting device for a horizontal blind according to item 1.

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