JP2002030877A - Bottom rail lower limit position adjustment device for horizontal blind - Google Patents

Abstract

(57) [Problem] To provide an adjusting device capable of easily adjusting a lower limit position of a bottom rail and having a large adjustment range. A lower end of a ladder cord (2) suspended from a head box is engaged with an adjusting means (4) provided on a bottom rail (1), and the adjusting means (4) pulls the ladder cord (2) toward the bottom rail (1). Alternatively, in a device for adjusting the lower limit position of the bottom rail 1 by pulling back toward the head box, the adjusting means 4 is provided so as to be movable along the lower surface of the bottom rail 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adjusting device for adjusting a lower limit position of a bottom rail of a horizontal blind.

[0002]

2. Description of the Related Art In a horizontal blind, when the bottom rail is lowered to a lowermost limit, the bottom rail is suspended from a ladder cord. Accordingly, since the lower limit position of the bottom rail is determined by the length of the ladder cord, if it becomes necessary to adjust the lower limit position of the bottom rail, it is necessary to adjust the length of the ladder code.

Conventionally, as a lower limit position adjusting device for a bottom rail, a winding shaft capable of winding a lower end portion of a ladder cord is rotatably supported by a bottom rail or a tape holder fitted to the bottom rail from below. Thus, a device has been proposed in which the lower limit position of the bottom rail can be adjusted.

In order to adjust the lower limit position of the bottom rail by such an adjusting device, the ladder cord is wound or unwound on the winding shaft by rotating a dial which enables the winding shaft to be operated. Make adjustments.

In another configuration, a winding drum for ladder code is rotatably supported on a bottom rail or a tape holder, and the lower end of the ladder code is wound or unwound on the winding drum. A configuration in which the lower limit position is adjusted has been proposed.

[0006]

However, in the adjusting device configured as described above, the end of the ladder cord is wound around a small-diameter winding shaft and a winding drum in the bottom rail. Accordingly, since the adjustment distance of the ladder cord is short with respect to the rotation amount of the winding shaft and the winding drum, when adjusting the lower limit position of the bottom rail, the winding shaft and the winding distance are adjusted with respect to the adjustment distance. It was necessary to increase the rotation of the take-up drum.

Further, since the length of the ladder cord wound on the winding shaft and the winding drum is limited, the range in which the lower limit position of the bottom rail can be adjusted is narrow. An object of the present invention is to provide an adjusting device that can easily adjust the lower limit position of the bottom rail and has a large adjustment range.

[0008]

According to the present invention, the lower end of a ladder cord suspended from a head box is connected to an adjusting means provided on the bottom rail, and the adjusting means connects the ladder cord to the bottom rail. In the device for adjusting the lower limit position of the bottom rail by pulling toward the head box or pulling back toward the head box, the adjustment means is provided so as to be movable along the lower surface of the bottom rail.

According to a second aspect, the adjusting means is provided so as to be movable in a longitudinal direction of the bottom rail. According to a third aspect of the present invention, at the time of adjusting the lower limit position of the bottom rail, the elevating cord can be retracted at the same time as the ladder cord is retracted along with the movement of the adjusting means.

According to a fourth aspect of the present invention, the adjusting means is a tape holder provided on a lower surface of the bottom rail, and the bottom rail is provided with a fixed shaft for moving the ladder cord along the bottom rail. .

According to a fifth aspect of the present invention, a support member is provided inside the bottom rail, and the adjusting means is a moving member provided inside the support member.
A guide groove that allows the ladder cord to move along the bottom rail is provided.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) FIGS.
Shows a first embodiment.

The bottom rail 1 of the horizontal blind is formed of an extruded aluminum material, and a ladder cord 2 and a lifting cord 3 suspended from a head box (not shown) are attached to a tape holder 4 at a plurality of positions in the longitudinal direction.
It is attached by.

An insertion hole 5 through which the lifting cord 3 is inserted is formed on the upper surface of the bottom rail 1, and a long hole 6 along the longitudinal direction of the bottom rail 1 is formed on the lower surface of the bottom rail 1. Is formed. As shown in FIG. 1, a fixed shaft 7 that penetrates the bottom rail 1 in the front and rear directions is inserted into the bottom rail 1 in the vicinity of the hanging position of the ladder cord 2 and the lifting cord 3.

A stopper 8 for fixing the lifting cord 3 is attached to the bottom surface of the tape holder 4. As shown in FIG. 2, the front and rear sides of the tape holder 4 are bent to face each other, and the tape holder 4 is fitted so as to be movable in the longitudinal direction of the bottom rail 1.

As shown in FIG. 4, the stopper 8 has a hook hole 9 through which the lifting cord 3 can be inserted.
The elevating cord 3 is inserted into the hook hole 9 to form a loop. The ladder cord 2 is loosely inserted between the tape holder 4 and the lower surface of the bottom rail 1, as shown in FIG.
And as shown in FIG. 4, it is inserted and connected to the loop of the elevating cord 3.

Accordingly, when the tape holder 4 is moved along the bottom rail 1, the lifting cord 3 hooked on the stopper 8 is drawn toward the bottom rail 1, and the long hole Move along 6. At this time, the ladder code 2 moves together with the elevating code 3.

The tape holder 4 is provided with an upper cover 10 which can be attached to and detached from the bottom rail 1 together with the tape holder 4. After the tape holder 4 is moved, the upper cover 10 is attached to the tape holder 4. Is fitted, the tape holder 4 can be fixed to the bottom rail 1 at a desired position.

Next, the operation of the bottom rail lower limit position adjusting device for a horizontal blind constructed as described above will be described. By the way, when the stopper 8 of the elevating cord 3 is located directly below the ladder cord 2 and the elevating cord 3 hanging from the head box, the suspended position of the bottom rail 1 is
It is in the lowest state. When adjusting the lower limit position of the bottom rail 1 upward from this state, first, the upper cover 1 fixing the tape holder 4 to the bottom rail 1
0, and the tape holder 4 is made movable.

Next, a ladder code 2 and a lifting code 3
Moves the tape holder 4 in the direction in which the tape holder 4 comes into contact with the fixed shaft 7, that is, in the direction indicated by the arrow A in FIG.
Then, as the tape holder 4 moves, the ladder code 2 and the elevating cord 3 are pulled toward the bottom rail 1 and the ladder code 2 and the elevating cord 3
Is turned 90 degrees by the fixed shaft 7 and moves together with the tape holder 4.

Accordingly, the lower limit position of the bottom rail 1 is raised upward by the same length as the distance by which the tape holder 4 has been moved along the bottom rail 1. Then, after raising the height of the bottom rail 1 to a desired position, the upper cover 10 is again attached to the bottom rail 1 and the tape holder 4.
By fixing the position of the tape holder 4 to the ladder cord 2, the ladder cord 2 and the lifting cord 3 are prevented from being pulled back, and the adjustment position of the bottom rail 1 is maintained.

When lowering the height of the bottom rail 1 again after adjusting the lower limit position of the bottom rail 1 upward, after removing the upper cover 10, the tape holder 4 is moved in the direction opposite to the moving direction. 1 in the direction opposite to the direction indicated by arrow A in FIG.

Then, the ladder cord 2 and the elevating cord 3 having the same length as the distance moved by the tape holder 4 are pulled back from the bottom rail 1, so that the bottom rail 1 is lowered. Then, by fitting the upper cover 10 at the desired lower limit position of the bottom rail and fixing the tape holder 4, the lower limit position of the bottom rail 1 is maintained.

Therefore, the bottom rail lower limit position adjusting device for a horizontal blind configured as described above has the following effects. (1) Since the tape holder 4 and the bottom rail 1 are loosely fitted, the tape holder 4 is
Can be moved smoothly. Therefore, when adjusting the lower limit position of the bottom rail 1, by moving the tape holder 4 while lifting the bottom rail 1, the adjustment operation can be performed with a small operation force.

(2) Adjusting the lower limit position of the bottom rail 1
The tape holder 4 is moved in the longitudinal direction of the bottom rail 1 to perform the operation. Therefore, since the adjustment distance between the ladder cord 2 and the elevating cord 3 can be sufficiently secured, the adjustment range of the lower limit position of the bottom rail 1 can be increased.

(3) Since the lower limit position of the bottom rail 1 is adjusted by the same distance with respect to the moving distance of the tape holder 4, the tape holder 4 is moved even when the adjusting distance of the bottom rail 1 is large. Since only the work is required, the adjustment can be quickly performed.

(4) Since the lower limit position of the bottom rail 1 is adjusted by the same length as the moving distance of the tape holder 4, the adjusting distance of the bottom rail 1 can be grasped by the moving distance of the tape holder 4. . Therefore, when the adjustment is performed by moving the plurality of tape holders 4, the lower limit position can be adjusted while maintaining the bottom rail 1 in the horizontal direction.

(5) After adjusting the lower limit position of the bottom rail 1 to a desired height, the tape holder 4 and the bottom rail 1
By fixing the tape holder 4 by fitting the upper cover 10 to the bottom rail 1, the lower limit position of the bottom rail 1 can be reliably maintained.

(6) Since the ladder cords 2 before and after the bottom rail 1 are drawn in by a uniform length, after adjustment, the inclination of the bottom rail 1 due to an imbalance in the length of the ladder cords 2 before and after is prevented. can do.

(7) Since the fixed shaft 7 is provided, the ladder code 2 and the elevating cord 3 are always maintained perpendicular to the bottom rail 1 even when the tape holder 4 is moved.

(8) The hollow tilt pole for adjusting the angle is suspended from the head box, the lifting cord 3 is inserted into the hollow tilt pole, and the lower end of the bottom rail 1 is brought into contact with the lower end of the hollow tilt pole. This embodiment is particularly useful when this embodiment is applied to a horizontal blind in which an equalizer is attached to the lower end of the lifting cord 3. That is,
When the lower limit position is adjusted, the ladder cord 2 and the elevating cord 3 are retracted at the same time. Therefore, when the bottom rail 1 is lowered to the lowermost limit, the elevating cord 3 is not exposed from the lower end of the hollow tilt pole. Therefore, after adjusting the lower limit position of the bottom rail 1, the appearance is not impaired. (Second Embodiment) FIGS. 5 to 14 show a second embodiment. In this embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and a detailed description thereof will be omitted.

As shown in FIG. 5, a slat 12 is supported on the ladder cord 2 by a lowermost weft thread 11. The lower end of the lifting cord 3 is connected to the slat 12
And is connected to the support member 13.

As shown in FIGS. 5 and 6, the support member 13 is provided at a plurality of locations in the longitudinal direction of the bottom rail 1. As shown in FIGS. 8 and 9, a first engagement portion 14 having a zigzag shape is formed at the center of the support member 13 along the longitudinal direction of the support member 13.
One end in the longitudinal direction is open, and the other end allows the lifting cord 3 to be inserted from above.

A guide groove 15 is formed at the other end of the support member 13, and an insertion hole 16 is formed in the bottom rail 1 at a position corresponding to the guide groove 15. Therefore, the ladder cord 2 can be inserted into the guide groove 15 from the insertion hole 16.

FIG. 11 shows the inside of the support member 13.
To the moving member 17 and the locking member 18 as shown in FIGS. As shown in FIG.
As shown in FIG. 7, the lower end of the ladder cord 2 inserted into the guide groove 15 is connected, and the movable member 17 is formed with a pair of first arms 19 having flexibility.

The distal end of the first arm 19 can be engaged with the first engaging portion 14, and the first arm 19 is urged outward. Therefore,
The movable member 17 is movable in the longitudinal direction of the support member 13 while repeating the engagement and disengagement operation with the first engagement portion 14 by bending the first arm portion 19 inward.

As shown in FIGS. 12 and 14, the moving member 17 is formed with second engaging portions 20a and 20b.
The lock member 18 is formed with a pair of flexible second arm portions 21. The second arm portion 21 is urged inward, and the second engagement portions 20a, 20b
Can be engaged.

The lock member 18 has the first
A step 22 is provided between the arms 19. When the second arm portion 21 is engaged with the second engagement portion 20a, the step portion 22 moves to the moving member 17 side, and the moving member 17 is unlocked, that is, the moving member 17 1
7 can be moved together with the lock member 18.

On the other hand, the second arm portion 21
When engaged with the engaging portion 20b, the step portion 22 moves to the distal end side of the first arm portion 19, and the first arm portion 19
Loses its flexibility. That is, the moving member 17 is locked, and the moving member 17 cannot be moved.

Further, as shown in FIG.
Below the lock member 7 and the lock member 18, a semicircular operating portion is provided. A large number of grooves are formed in the operation section, and the moving member 17 and the lock member 18 can be operated by hooking a finger in the grooves.

The bottom rail 1 is provided with a lower cover 23 which is detachably attached to the lower surface of the bottom rail 1. When the lower limit position of the bottom rail 1 is not adjusted, the lower cover 23 is provided. Is fitted.

Next, the operation of the bottom rail lower limit position adjusting device for a horizontal blind constructed as described above will be described. When the suspended position of the bottom rail 1 is at the lowermost limit, the moving member 17 and the lock member 18 are located on the support member 13 on the mounting side of the ladder cord 2 as shown in FIG. At this time, the second arm portion 21 of the lock member 18 is, as shown in FIG.
The moving member 17 is supported by the support member 1.
3 cannot be moved.

To adjust the lower limit position of the bottom rail 1 upward from this state, first, the bottom rail 1
Of the lower cover 23 fitted on the lower surface of the cover. Next, the lock member 18 is operated to engage the second arm portion 21 with the second engagement portion 20a, so that the movable member 17 can be moved.

Next, as shown in FIG.
Is moved in the longitudinal direction of the support member 13. Then
The lower end of the ladder cord 2 connected to the moving member 17 is drawn into the bottom rail 1. Therefore, FIG.
As shown in the figure, the suspended position of the bottom rail 1 rises.

Thereafter, the lock member 18 is operated to engage the second arm portion 21 with the second engagement portion 20b.
7, and the lower cover 23 is fitted again to the bottom rail 1 to make the moving member 17 and the lock member 18 inoperable.

Subsequently, when the lower limit position of the bottom rail 1 is adjusted downward from this state, the lower cover 23 is removed and the lock member 18 is operated to move the movable member 17 to a movable state. 17 is moved in the opposite direction.

Then, the ladder cord 2 is pulled out from the bottom rail 1 and the suspended position of the bottom rail 1 is lowered. Then, the lock member 18 is operated to move the moving member 1.
When the bottom rail 7 is made immovable, the adjustment position of the bottom rail 1 is securely maintained. Thereafter, when the lower cover 23 is attached to the bottom rail 1, the moving member 17 and the lock member 18 become inoperable.

Therefore, the bottom rail lower limit position adjusting device for a horizontal blind configured as described above can obtain the following operation and effect in addition to the operation and effect (6) in the first embodiment. .

(1) In addition to the movable member 17 for adjusting the lower limit position of the bottom rail 1, a lock member 18 for fixing the movable member 17 to the support member 13 is provided. With this configuration, after the lower limit position of the bottom rail 1 is adjusted,
The height can be reliably maintained, and the adjustment operation can be easily performed simply by moving the lock member 18 with one touch.

(2) Adjustment of the lower limit position of the bottom rail 1
The moving member 17 is moved in the longitudinal direction of the bottom rail 1 to perform the operation. Therefore, since the adjustment distance of the ladder cord 2 can be sufficiently secured, the adjustment range of the lower limit position of the bottom rail 1 can be increased.

(3) With respect to the moving distance of the moving member 17,
Since the lower limit position of the bottom rail 1 is adjusted by the same distance, even when the adjustment distance of the bottom rail 1 is large, the operation of merely moving the moving member 17 is sufficient, so that the adjustment can be quickly performed.

(4) Moving member 17 and lock member 18
Is provided in the bottom rail 1, and the bottom rail 1 is provided with a lower cover 23. Therefore, the adjusting device is not exposed to the outside of the bottom rail 1 and the appearance is excellent.

The above embodiments may be modified as follows. In the first and second embodiments, the lower limit position of the bottom rail 1 is adjusted up to the lowermost weft yarn 11.
By cutting 1, the adjustment range of the lower limit position of the bottom rail 1 may be one pitch or more up to the slat 12. In the first embodiment, the means for maintaining the ladder cord 2 and the elevating cord 3 perpendicular to the bottom rail 1 is not limited to the configuration using the fixed shaft 7. That is, an insertion tube through which the ladder cord 2 and the elevating cord 3 are inserted may be provided from the upper part to the lower part of the bottom rail 1. With this configuration, the same operation and effect as the operation and effect (7) in the first embodiment can be obtained. In the first embodiment, one end of the upper cover 10 is attached to either the front or the rear of the tape holder 4, and the upper cover 10 is moved to a desired position with respect to the bottom rail 1 with the movement of the tape holder 4. After being moved, the other end of the upper cover 10 may be fitted to the tape holder 4. With this configuration, the operation of fixing the tape holder 4 to the bottom rail 1 can be performed more easily. In the second embodiment, the moving member 17 and the lock member 18 can be operated from the lower portion of the bottom rail 1,
By operating the operation shaft in front of the bottom rail 1, the operation may be performed from the front of the bottom rail 1.
According to this configuration, the moving distance of the moving member 17 can be grasped, so that the same operation and effect as the operation (4) in the first embodiment can be obtained. In the second embodiment, only the lower end of the ladder cord 2 is connected to the moving member 17, but the moving member 17 may also be connected to the lifting cord 3. According to this configuration, the same operation and effect as the operation and effect (8) in the first embodiment can be obtained. -As shown in FIG. 15, an insertion hole 25 is formed before and after the tape holder 24 so that the lower end of the ladder cord 2 hanging from the head box can be inserted. FIG.
As shown in FIGS. 6 and 17, a long hole 26 communicating with the insertion hole 25 is provided in the longitudinal direction of the bottom rail before and after the tape holder 24, and the long hole 26 is provided with the ladder cord 2. An adjustment shaft 27 connected to the lower end is provided movably. Then, the adjusting shaft 27 can be fixed at a desired position of the elongated hole 26 by a sliding resistance between the adjusting shaft 27 and the elongated hole 26. With such a configuration,
The length of the ladder code 2 may be adjusted. As shown in FIG. 18, the lower end of the ladder cord 2 is connected to an adjustment piece 29 movably provided along the lower surface of the tape holder 28. Then, a part of the adjustment piece 29 is exposed on the lower surface of the tape holder 28 so that it can be operated from below. With such a configuration, the length of the ladder code 2 may be adjusted. -As shown in FIG. 20, a pair of adjusting arms 31 are provided on the tape holder 30. The base end of the adjusting arm 31 is rotatably supported by the tape holder 30, and the lower end of the ladder cord 2 is connected to the tip. A guide groove 32 for rotating the adjusting arm 31 is provided on the lower surface of the tape holder 30.
Of the adjusting arm 31 from the lower surface of the guide groove 32
It can be operated along. With such a configuration, the length of the ladder code 2 may be adjusted. -As shown in FIG. 22, the operation stick 3 is attached to the tape holder 33.
4 is provided rotatably. In the center of the operating rod 34,
From the lower surface of the tape holder 33, an operation knob 35 that enables the operation rod 34 to rotate can be formed. Further, the lower ends of the ladder cords 2 inserted through the insertion holes provided before and after the tape holder 33 are connected to the vicinity of the insertion holes on the opposite side surfaces, respectively. Then, the operation knob 35 is rotated using a screwdriver or a coin, and the ladder code 2 is brought into contact with both ends of the operation rod 34 as shown in FIG.
Can be drawn into the tape holder 33. With such a configuration, the length of the ladder code 2 may be adjusted. -As shown in FIG. 24, the operation rod 3 is attached to the tape holder 36.
7 are rotatably provided, and projections 38 on which the ladder cord 2 can be mounted are formed at both ends of the operation rod 37. The tape holder 36 is located at the center of the operation rod 37.
An operation knob 39 that allows the operation rod 37 to be rotatably operated is formed to project from the lower surface of the device. Then, the operation knob 39 is operated, and as shown in FIG. 25, the operation rod 37 is rotated so that the ladder cord 2 can be pulled into the tape holder 36. With such a configuration, the length of the ladder code 2 may be adjusted.

Next, technical ideas other than the inventions described in the claims that can be grasped from the embodiment will be described. (1) The bottom rail lower limit position adjusting device for a horizontal blind according to claim 4, wherein the tape holder is provided with an upper cover for maintaining the tape holder at a desired position on the bottom rail.

(2) The lower limit position of the bottom of the horizontal blind according to claim 5, wherein the movable member is provided with a lock member for maintaining the movable member at a desired position on the bottom rail. apparatus.

(3) The first member formed on the support member
The bottom rail lower limit position adjusting device for a horizontal blind according to claim 5, wherein the engaging portion is provided in a zigzag shape, and the lower limit position of the bottom rail can be adjusted in multiple steps.

[0057]

As described above in detail, the present invention can provide an adjusting device which can easily adjust the lower limit position of the bottom rail and has a large adjusting range.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment.

FIG. 2 is a cross-sectional view showing the first embodiment.

FIG. 3 is a cross-sectional view showing the first embodiment.

FIG. 4 is a diagram illustrating a stopper according to the first embodiment.

FIG. 5 is a cross-sectional view showing a second embodiment.

FIG. 6 is a cross-sectional view showing a second embodiment.

FIG. 7 is a cross-sectional view illustrating a second embodiment.

FIG. 8 is a cross-sectional view illustrating an operation of the second embodiment.

FIG. 9 is a sectional view showing the operation of the second embodiment.

FIG. 10 is a cross-sectional view showing a second embodiment.

FIG. 11 is a front view showing a moving member and a lock member according to the second embodiment (unlocked state).

FIG. 12 is a sectional view showing a moving member and a lock member according to the second embodiment (unlocked state).

FIG. 13 is a front view showing a movable member and a lock member according to the second embodiment (locked state).

FIG. 14 is a cross-sectional view illustrating a moving member and a lock member according to the second embodiment (locked state).

FIG. 15 is a plan view showing another example of the present invention.

FIG. 16 is a sectional view showing another example of the present invention.

FIG. 17 is a sectional view showing another example of the present invention.

FIG. 18 is a plan view showing another example of the present invention.

FIG. 19 is a bottom view showing another example of the present invention.

FIG. 20 is a plan view showing another example of the present invention.

FIG. 21 is a bottom view showing another example of the present invention.

FIG. 22 is a plan view showing another example of the present invention.

FIG. 23 is a plan view showing another example of the present invention.

FIG. 24 is a plan view showing another example of the present invention.

FIG. 25 is a plan view showing another example of the present invention.

[Explanation of symbols]

 1 bottom rail 2 ladder cord 4 adjustment means (tape holder)

Claims (5)

[Claims] 1. A lower end of a ladder cord suspended from a head box is engaged with an adjusting means provided on a bottom rail, and the ladder cord is pulled toward the bottom rail by the adjusting means, or An apparatus for adjusting a lower limit position of the bottom rail by pulling back toward a box, wherein the adjustment means is provided so as to be movable along a lower surface of the bottom rail, wherein the lower limit position adjustment of the bottom of a horizontal blind is provided. apparatus. 2. The horizontal rail lower limit position adjusting device according to claim 1, wherein said adjusting means is provided so as to be movable in a longitudinal direction of said bottom rail. 3. The apparatus according to claim 1, wherein the lowering position of the bottom rail is adjusted, and at the same time, the elevating cord can be pulled in simultaneously with the pulling of the ladder code accompanying the movement of the adjusting means. The bottom rail lower limit position adjusting device for a horizontal blind according to any one of the above. 4. The apparatus according to claim 1, wherein said adjusting means is a tape holder provided on a lower surface of said bottom rail, and said bottom rail is provided with a fixed shaft capable of moving said ladder cord along said bottom rail. The bottom rail lower limit position adjusting device for a horizontal blind according to any one of claims 1 to 3. 5. A support member is provided inside said bottom rail, said adjusting means is a moving member provided inside said support member, and said support member moves said ladder cord along said bottom rail. The bottom rail lower limit position adjusting device for a horizontal blind according to any one of claims 1 to 3, wherein a guide groove is provided.