JP2007254958A - Positioning implement and positioning method for bottom rail - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a positioning implement for a bottom rail, which can adjust a position of the bottom rail and surely hold the bottom rail in a predetermined position. <P>SOLUTION: A holder 2, which holds a ladder cord 12 in the state of sandwiching it between the holder 2 and the bottom rail 11, is fitted into the bottom rail 11. The holder 2 is provided with two latching parts for each warp of the ladder cord, around which the ladder cord 12 is wound for latching. Preferably, the latching part 3 comprises: a winding shaft which is protruded from the holder 2, which is formed in such a shape that the length of this protrusion is smaller in dimension than the thickness of the ladder cord 3, and around which the ladder cord 3 is to be wound; and a locking piece 32 wider than the winding shaft, which is provided at the leading end of the winding shaft. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a bottom rail positioning tool and a bottom rail positioning method for positioning a bottom rail of a horizontal blind.

A horizontal blind has a multi-stage slat supported by a ladder cord suspended from a slat angle adjustment device in a head box attached to a bracket fixed to a window frame, and a bottom rail supported by the lower end of the ladder cord. The angle of each slat is adjusted in substantially the same phase via the ladder cord by the slat angle adjusting device.

  A slat lifting device for winding and unwinding the lifting cord is provided in the head box. The lifting cord fed out from this slat lifting device is inserted through each slat and its lower end is attached to the bottom rail. When the lifting cord is wound up by the slat lifting device, the bottom rail is first pulled up. It is pulled up with the bottom rail sequentially from the lower slat. Further, when the lifting / lowering cord is fed out by the slat lifting / lowering device, the bottom rail descends and is sequentially supported from the upper slat to the ladder cord at substantially equal intervals. When the bottom rail is lowered to the lowest limit, the bottom rail is suspended and supported by the ladder cord.

  Several devices have been proposed for supporting the lower end of the ladder cord on the bottom rail (for example, see Patent Document 1). The device described in Patent Document 1 (ladder cord bottom cover) is slidable in the longitudinal direction of the bottom rail through a holder fitted into the lower half of the bottom rail and a stopper insertion hole of the holder. It consists of an inserted stopper and a slider detachably attached to the holder to protect the stopper.

  In order to support the lower end of the ladder cord on the bottom rail using this bottom cover, first, the lower end of the ladder cord is inserted through the stopper insertion hole from the inner surface of the holder, and then the stopper inserted into the stopper insertion hole. Pass the trap hole provided in the insertion part. By inserting the stopper insertion portion into the stopper insertion hole of the holder in this state, the lower end portion of the ladder cord is sandwiched between the inner surface of the stopper insertion hole and the outer surface of the stopper insertion portion, and the lower end portion of the ladder cord is the bottom. Fastened to the rail. By attaching the slider to the holder, the stopper is protected and the lower end portion of the ladder cord can be accommodated in the code space in the slider.

By the way, when the horizontal blind is installed, the lower limit position of the bottom rail is not constant and varies depending on the installation location, and the lower limit position of the bottom rail may have to be adjusted every time it is installed. In this case, since the bottom cover of the above-mentioned bottom cover is released from clamping the inner surface of the stopper insertion hole and the outer surface of the stopper insertion portion by pulling out the insertion portion of the stopper from the stopper insertion hole of the holder. The length of the ladder cord (the length from the slat angle adjusting device to the bottom rail) can be finely adjusted, and the positioning of the lower limit position of the bottom rail is facilitated.
JP 2003-328664 A, page 1

  However, the above-mentioned bottom cover has a structure in which the length of the ladder cord is changed because the bottom rail is fixed to the lower end portion of the ladder cord by clamping the inner surface of the stopper insertion hole of the holder and the outer surface of the insertion portion of the stopper. The lower limit position of the rail may change. That is, the stronger the clamping force between the inner surface of the stopper insertion hole and the outer surface of the stopper insertion portion, the lower the lower rail position will not change, but there is a limit to clamping with the clamping force that the ladder cord does not come off. is there. In other words, if the ladder cord is pulled with the bottom cover attached to the bottom rail, the ladder cord may come off between the inner surface of the stopper insertion hole and the outer surface of the stopper insertion portion. For this reason, since the bottom rail is repeatedly raised and lowered, the tip of the ladder cord moves in a direction to come out from between the inner surface of the stopper insertion hole and the outer surface of the stopper insertion portion, and the length of the ladder cord is increased. The lower limit position of the bottom rail sometimes changed.

The present invention has been made to solve the above-mentioned problems. The length of the ladder cord can be reliably adjusted, and the blind can be easily adjusted after being attached to the window frame. Is.
An object of the present invention is to provide a bottom rail positioning tool and a bottom rail positioning method capable of adjusting the position of the bottom rail and securely holding the bottom rail at a predetermined position.

  In order to achieve the above object, a bottom rail positioning tool according to the present invention comprises a head box which is laminated with a plurality of slats used as a sunshade for a window and is attached to a window frame at the upper end. A blind bottom rail positioning tool comprising a plurality of lifting cords for raising and lowering the bottom rail and a ladder cord for adjusting the inclination angle of the slats between the bottom rail attached to the bottom end and the bottom rail. It is a configuration of a bottom rail positioning tool in which a holder for sandwiching a ladder cord with a rail is fitted, and two latching portions for winding the ladder cord around the ladder cord are provided for each warp yarn of the ladder cord. .

    The problem of the present invention is that the holder is detachably attached to the holder, and the cover for holding the ladder cord wound around the hook portion between the hook portion and the holder is detachably attached to the holder. The structure and the structure in which the hook portion is formed of a synthetic resin having flexibility, and the ladder cord is formed by knitting a plurality of yarns in a cord shape and in a substantially U-shape, This ladder code can be achieved by a configuration in which the bottom rail and the holder are sandwiched so that the leading end of the substantially U-shaped mesh U faces the free end side.

  The object of the present invention is to stack a plurality of slats used as a sunshade for a window, and to provide a head box attached to a window frame at the upper end, and a bottom rail between the head box and a bottom rail attached to the lowermost end of the slat In a blind bottom rail positioning tool comprising a plurality of lifting cords for raising and lowering and a ladder cord for adjusting the inclination angle of the slat, a holder is fitted on the bottom rail, and the ladder cord is composed of the bottom rail and the holder. The bottom rail is temporarily fixed to the ladder cord and the ladder cord is pulled and moved with respect to the bottom rail to adjust the position where the bottom rail is clamped, and then the free end of the ladder cord is Wrap around the two hooks protruding from the holder in the shape of a figure 8, It can be achieved by the method of the positioning bottom rail for positioning the bottom rail.

According to the bottom rail positioning tool of the present invention, when the holder is fitted to the bottom rail and the ladder cord is sandwiched between the bottom rail and the holder, the bottom rail can be temporarily fixed to the ladder cord. If the ladder cord is pulled with respect to the bottom rail, the position where the ladder cord is held is changed by moving in the direction in which the ladder cord is pulled, so that the position of the bottom rail can be adjusted.
According to the bottom positioning method of the present invention, after the position of the bottom rail is adjusted, the ladder cord is wound around two hooking portions, for example, in the shape of a figure 8, and thereby the bottom rail is fixed at two places on the ladder cord. Therefore, the bottom rail can be securely held at a predetermined position.

  As a temporary fixing method of the holder in the positioning method of the bottom rail of the present invention, the holder is temporarily fixed utilizing the elasticity of the resin of the holder. In this case, it is also possible to use a leaf spring or a spring and fix it by the elasticity of the spring or the like.

  As described above, according to the bottom rail positioning tool and the bottom rail positioning method according to the present invention, the holder can be fitted to the bottom rail and the bottom rail can be temporarily fixed to the ladder cord. In addition, after the position of the bottom rail is adjusted, the bottom rail can be securely held at a predetermined position by winding the ladder cord around the two hooking portions, for example, in the shape of a figure of 8, for example.

  Hereinafter, a bottom rail positioning tool and a bottom rail positioning method according to the present invention will be described in detail with reference to the accompanying drawings.

1 to 3 show an example of a bottom rail positioning tool according to the present invention.
The bottom rail positioning tool according to the present invention positions the bottom rail 11 of the horizontal blind 10, as shown in FIGS. The horizontal blind is not particularly limited. For example, a multi-stage slat 14 is supported by a ladder cord 12 suspended from a slat angle adjusting device (not shown) in the head box 13, and the ladder cord 12 The bottom rail 11 is supported at the lower end, and the slat angle adjusting device is driven by rotating the first operation portion 15 a of the operation member 15 with respect to the head box 13, so that each slat 14 is connected via the ladder cord 12. The angle is adjusted in substantially the same phase.

  In the head box 13, a slat lifting device (not shown) for winding and unwinding the lifting cord 16 is provided. The lifting / lowering cord 16 fed out from the slat lifting / lowering device passes through each slat 14 and has a lower end attached to the bottom rail 11. By operating the first operating portion 15a and the second operating portion 15b of the operating member 15, when the slat lifting device is driven and the lifting cord 16 is wound up, first, the bottom rail 11 is first lifted from the lower slat. The bottom rail 11 is pulled up sequentially. Further, when the lifting / lowering cord 16 is drawn out by driving the slat lifting / lowering device, the bottom rail 11 is lowered and is sequentially supported from the upper slat 14 to the ladder cord 12 at substantially equal intervals. When the bottom rail 11 is lowered to the lowest limit, the bottom rail 11 is suspended and supported by the ladder cord 12.

  The ladder cord 12 is formed in a ladder shape by weft yarns 12b being spanned at predetermined intervals between two warp yarns 12a that are substantially parallel to each other and extend in the height direction. As shown in FIG. 8, the warp yarn 12a of the ladder cord 12 is preferably formed by knitting a plurality of yarns in a cord shape and in a substantially U-shaped mesh shape.

  The bottom rail 11 is formed of, for example, an aluminum extruded shape. As shown in FIGS. 1 to 3, the bottom rail 11 has an upper portion (sometimes referred to as an upper rail 11a) and a lower portion (sometimes referred to as a lower rail 11b) that are curved upward and downward, respectively. The side portions 11c are formed in a horizontally long, substantially rectangular shape with a concave shape. The upper rail 11a of the bottom rail 11 is provided with two or more support holes 17 at a predetermined interval in the longitudinal direction for supporting by being suspended from the lifting / lowering cord 16. The support hole 17 is formed with a diameter that can be engaged with a knot formed by connecting the lifting / lowering cord 16, for example. Further, a mounting hole 18 having a diameter larger than that of the support hole 17 is provided at a location facing the support hole 17 of the lower rail 11 b of the bottom rail 11. The attachment hole 18 is formed with a diameter that allows the knot of the lifting / lowering cord 16 engaged with the support hole 17 to pass. A bottom rail positioning tool according to the present invention is attached to the bottom rail 11, and the bottom rail 11 is supported on the lower end portion of the ladder cord 12. That is, the bottom rail 11 is supported by the two warp threads 12a of the ladder cord 12 via the bottom rail positioning tool (also referred to as the bottom rail positioning tool 1) according to the present invention.

  The bottom rail positioning tool 1 according to the present invention is provided with a ladder cord that is attached to the bottom rail 11 and that holds the ladder cord 12 between the bottom rail 11 and winds the ladder cord 12 around the holder 2 to be latched. It is characterized in that two are provided for every 12 warp yarns 12a.

  The holder 2 has a substantially U-shape that is fitted to the lower half of the bottom rail 11 and has a substantially rectangular shape in plan view. The front end portions of both side portions of the holder 2 are formed to be curved inward so as to be fitted to the lower portions of the both side portions 11c of the bottom rail 11.

  The holder 2 is disposed so as to cover the mounting hole 18 of the lower rail 11 b of the bottom rail 11. A substantially square-shaped through-hole 21 whose one side is longer than the diameter of the mounting hole 18, for example, is slightly longer, is provided at a substantially central portion of the holder 2. Cuts 22 extending two sides extending in the width direction are provided at the four corners of the through hole 21, and a space between the cuts 22 is formed as a cord attachment portion 23.

  Ladder code accommodating portions 24 extending in the width direction of the holder 2 are provided at substantially the central portion of the inner surface of the cord mounting portion 23 of the holder 2 (the surface in contact with the lower rail 11b of the bottom rail 11). The ladder cord housing portion 24 is formed in a shape smaller than the shape of the warp yarn 12 a of the ladder cord 12, and the holder 2 is attached to one end of the bottom rail 11 in a state where the warp yarn 12 a of the ladder cord 12 is housed in the ladder cord housing portion 24. It is slid so that it may fit in the lower half part from a part, and may cover the desired attachment hole 18. FIG. Thus, the ladder cord 12 (warp yarn 12a) is sandwiched between the bottom rail 11 and the holder 2, and the bottom rail 11 is temporarily fixed to the ladder cord 12.

  The lower surface of the holder 2, that is, the outer surface, is formed as an outer surface portion 26 whose one end portion protrudes from the surface, and the cover mounting portion to which the cover 4 is mounted in the remaining portion (outer surface other than the outer surface portion 26). 27 is formed. A lock recess 28 for holding the cover 4 in a locked state is provided near the outer surface portion 26 of the cover mounting portion 27. The cover 4 can be opened and closed by sliding. The cover 4 is the same component as the holder 2, and the cover 4 is held in a locked state by the holder 2, so there is no risk of loss.

  In addition, a cover engaging portion 25 is provided in the cover mounting portion 27 at a substantially central portion of the holder 2. The cover engaging portion 25 is formed to extend substantially parallel to the two sides of the mounting hole 18 in the vicinity of the two sides extending along the side of the holder 2. The cover engaging portion 25 other than the cord attachment portion 23 is formed in a substantially L shape that protrudes from the surface of the holder 2 and has a tip portion bent at a substantially right angle toward the side of the holder 2.

  The remaining cover engaging portion (on the cord attachment portion 23) is also formed as the hook portion 3. It is preferable that the latching part 3 is formed with the synthetic resin etc. which have flexibility. This latching part 3 is provided integrally with the holder 2, for example. That is, it is preferable that the holder 2 is formed of a synthetic resin having flexibility. Two hook portions 3 are provided at a distance in the longitudinal direction of the bottom rail 11 (four on the holder 2 in total). These two hooking portions 3 are for hooking the free ends of the warp yarns 12a of the ladder cord 12 sandwiched between the bottom rail 11 and the holder 2 by, for example, wrapping them in a substantially 8-character shape.

  The latching portion 3 includes, for example, a latching shaft 31 that protrudes from the surface of the holder 2 and around which the warp yarn 12 a is wound, and a locking piece 32 that is provided at the tip of the latching shaft 31. The locking piece 32 is formed wider than the latching shaft 31. That is, the latching part 3 is formed in a substantially T shape in a side view. The length of the hanging shaft 31 (the length from the surface of the holder 2 to the locking piece 32) is shorter than the thickness of the warp 12 of the ladder cord 12, and the warp 12a is wound around the hanging shaft 31. At this time, it is preferable that the locking piece 32 is formed to have a flexible dimension.

  The cover 4 is mounted by sliding engagement with the cover mounting portion 27, and is formed of a synthetic resin having flexibility in a substantially U shape, for example, the same material as the holder. Both sides of the cover 4 are formed as engaging portions 35 that are slidably engaged with the cover engaging portion 25 and the latching portion 31. The engagement portion 35 is preferably formed so as to sandwich the warp yarn 12 a wound around the hook portion 3 between the hook portion 3 and the holder 2. Moreover, it is preferable that the cover 4 is formed in a shape that has substantially the same outer shape as the outer surface of the holder 2 when the cover 4 is mounted on the cover mounting portion 27. A lock convex portion 38 is provided on the inner surface of the cover 4. When the cover 4 is slidably engaged with the cover mounting portion 27, the lock convex portion 38 and the lock concave portion 28 are engaged to cover the cover 4. Is held by the holder 2 in a locked state.

  Next, a method for supporting the bottom rail 11 on the ladder cord 12 using the bottom rail positioning tool 1 according to the present invention will be described.

  First, after the horizontal blind 10 is attached to the upper part of the window frame, the ladder cord 12 is cut longer than the length that supports the bottom rail 11. In a state where the warp yarn 12a of the ladder cord 12 is accommodated in the ladder cord accommodating portion 24 of the holder 2, the holder 2 is fitted from one end portion of the bottom rail 11 to the lower half portion thereof. At this time, the warp yarn 12 a of the ladder cord 12 is in a state along the width direction from the side portion of the bottom rail 11 to the lower surface, and the warp yarn 12 a is sandwiched between the bottom rail 11 and the holder 2. The holder 2 is slid in the longitudinal direction with respect to the bottom rail 11 while the warp yarn 12a is accommodated in the ladder cord accommodating portion 24, and is positioned so as to cover the mounting hole 18 of the desired lower rail 11b. Thereby, since the bottom rail 11 is suspended and supported by the ladder cord 12, the bottom rail 11 is temporarily fixed.

  After the temporary fixing, whether the bottom rail 11 is positioned at a desired position is confirmed by, for example, operating the operating member 15 to operate the horizontal blind 10. When the position of the bottom rail 11 is shifted, the warp yarn 12a of the ladder cord 12 on the free end side or the warp yarn 12a of the ladder cord 12 on the support side (opposite side to the free end side) is pulled, respectively. The bottom rail 11 is positioned by adjusting the position at which is held.

  After the positioning, the free ends of the two warp threads 12a are wound around the two hooking portions 3 in the shape of an approximately 8 character. The free end of the warp 12a hooked on the hook 3 is inserted into the through hole 21, and the cover 4 is slid and engaged with the cover mounting portion 27 of the holder 2 in this state. At this time, the lock convex portion 38 and the lock concave portion 28 are engaged with each other so that the cover 4 is held in a locked state by the holder 2, and the cover 4 is not easily detached from the holder 2. As a result, the free end of the warp yarn 12a of the ladder cord 12 is not inserted into the bottom rail 11 from the through hole 21 and does not hang down or protrude outside, so that the bottom rail positioning tool 1 according to the present invention can be viewed. Can be attached to the bottom rail 11.

  Therefore, according to the bottom rail positioning tool 1 and the bottom rail positioning method according to the present invention, the bottom rail is temporarily fixed by sandwiching the warp thread 12a of the ladder cord 12 between the bottom rail 11 and the holder 2, and the ladder cord 12 After adjusting the position of the bottom rail 11 by pulling the warp yarn 12a with respect to the bottom rail 11, the free ends of the warp yarn 12a are wound around the two hooking portions 3 in the shape of a figure 8 so as to be hooked. 11 can be fixed at two locations of the warp yarn 12a of the ladder cord 12, so that the position of the bottom rail 11 can be adjusted and the bottom rail 11 can be securely held at a predetermined position.

  Further, when the length of the hook shaft 31 of the hook portion 3 is shorter than the thickness of the warp yarn 12a of the ladder cord 12, and when the warp yarn 12a is wound around the hook shaft 31, the locking piece 32 is flexible. Since the warp yarns 12a are wound around the hooking portions 3 when the warp yarns 12a are wound around the hooking portions 3, the warp yarns 12a are difficult to be released from the hooking portions 3, so that the bottom rail 11 can be securely held at a predetermined position. it can.

  Further, since the cord mounting portion 23 of the holder 2 that holds the ladder cord 12 is flexible by the notch 22, the holder 2 can be easily slid to a desired position on the bottom rail 11, so that the present invention can be used. The bottom rail positioning tool 1 can be easily mounted. Further, since the cord attachment portion 23 has flexibility, it is easy to adjust the position where the ladder cord 12 is clamped by pulling the warp 12a of the ladder cord 12, so that the bottom rail 11 can be easily positioned. Yes.

  Further, the warp yarn 12a of the ladder cord 12 formed by knitting a plurality of yarns in a cord shape and having a substantially U-shaped mesh shape is used. Is preferably arranged so as to face the opposite side. Thereby, when the warp yarn 12a is clamped between the bottom rail 11 and the holder 2, the warp yarn 12a is more pulled when the warp yarn 12a on the support side is pulled with respect to the bottom rail 11 than when the warp yarn 12a on the free end side is pulled. Therefore, the bottom rail 11 can be held more securely at a predetermined position.

It is a figure which shows an example of the horizontal blind which attached the positioning tool of the bottom rail which concerns on this invention, (a) is a front view, (b) is a bottom view. It is a figure which shows an example of the positioning tool of the bottom rail which concerns on this invention, (a) is a perspective view, (b) is sectional drawing. It is a disassembled perspective view which shows an example of the positioning tool of the bottom rail which concerns on this invention. It is explanatory drawing when attaching the positioning tool of the bottom rail which concerns on this invention to a bottom rail. It is explanatory drawing when attaching the positioning tool of the bottom rail which concerns on this invention to a bottom rail. It is explanatory drawing when attaching the positioning tool of the bottom rail which concerns on this invention to a bottom rail. It is explanatory drawing when attaching the positioning tool of the bottom rail which concerns on this invention to a bottom rail. It is a figure which shows an example of the ladder code which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bottom rail positioning tool 2 Holder 3 Latching part 4 Cover 11 Bottom rail 12 Ladder cord 12a Warp thread 31 Latching shaft 32 Locking piece

Claims (7)

A plurality of slats to be used as a window awning are stacked, and a head box attached to a window frame is provided at the upper end, and a plurality of slats are moved up and down between the head box and a bottom rail attached to the bottom end of the slat In the positioning tool for the bottom rail of the lateral position blind provided with the lifting / lowering cord and the ladder cord for adjusting the inclination angle of the slat,
A holder that holds the ladder cord between the bottom rail and the bottom rail is fitted to the bottom rail, and two hook portions for winding the ladder cord around the ladder cord are provided for each warp yarn of the ladder cord. A bottom rail positioning tool.   The hooking portion is protruded from the holder, the length of the protrusion is shorter than the thickness of the ladder cord, and a winding shaft around which the ladder cord is wound, and a tip portion of the winding shaft The positioning device for a bottom rail according to claim 1, further comprising a locking piece that is wider than the winding shaft.   The cover is detachably attached to the holder so as to cover the hook portion and to sandwich the ladder cord wound around the hook portion between the hook portion and the holder. The positioning tool of the bottom rail of Claim 1 or Claim 2.   The positioning device for a bottom rail according to any one of claims 1 to 3, wherein the hooking portion is formed of a synthetic resin having flexibility.   The ladder cord is formed by knitting a plurality of yarns in the form of a cord and having a substantially U-shaped mesh shape, and the ladder cord is formed so that the leading end portion of the substantially U-shaped mesh is directed to the free end side. The bottom rail positioning tool according to any one of claims 1 to 4, wherein the bottom rail positioning tool is sandwiched between the bottom rail and the holder. Multiple slats to be used as window shades are stacked, a head box attached to the window frame at the upper end, and a plurality of elevators that raise and lower the bottom rail between this head box and the bottom rail attached to the lowermost end of the slat In the blind bottom rail positioning tool comprising a cord and a ladder cord for adjusting the inclination angle of the slat,
A holder is fitted to the bottom rail, the ladder cord is sandwiched between the bottom rail and the holder, the bottom rail is temporarily fixed to the ladder cord, and the ladder cord is pulled and moved with respect to the bottom rail to move the bottom rail. After adjusting the position at which the belt is clamped, the bottom end of the ladder cord is positioned by wrapping the free end of the ladder cord around the two hooking portions protruding from the holder in the shape of figure 8 A bottom rail positioning method characterized by the above.   The ladder cord is formed by knitting a plurality of yarns in the form of a cord and in a substantially U-shaped mesh, and the ladder cord is formed so that the front end portion of the U of the substantially U-shaped mesh faces the free end side. The bottom rail positioning method according to claim 6, wherein the bottom rail and the holder are clamped.

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